diff options
Diffstat (limited to 'src/libimcv')
231 files changed, 35631 insertions, 583 deletions
diff --git a/src/libimcv/Android.mk b/src/libimcv/Android.mk index 4253fe274..8269d7296 100644 --- a/src/libimcv/Android.mk +++ b/src/libimcv/Android.mk @@ -41,7 +41,62 @@ libimcv_la_SOURCES := \ os_info/os_info.h os_info/os_info.c \ pa_tnc/pa_tnc_attr.h \ pa_tnc/pa_tnc_msg.h pa_tnc/pa_tnc_msg.c \ - pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c + pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c \ + pts/pts.h pts/pts.c \ + pts/pts_error.h pts/pts_error.c \ + pts/pts_pcr.h pts/pts_pcr.c \ + pts/pts_proto_caps.h \ + pts/pts_req_func_comp_evid.h \ + pts/pts_simple_evid_final.h \ + pts/pts_creds.h pts/pts_creds.c \ + pts/pts_database.h pts/pts_database.c \ + pts/pts_dh_group.h pts/pts_dh_group.c \ + pts/pts_file_meas.h pts/pts_file_meas.c \ + pts/pts_file_meta.h pts/pts_file_meta.c \ + pts/pts_file_type.h pts/pts_file_type.c \ + pts/pts_ima_bios_list.h pts/pts_ima_bios_list.c \ + pts/pts_ima_event_list.h pts/pts_ima_event_list.c \ + pts/pts_meas_algo.h pts/pts_meas_algo.c \ + pts/components/pts_component.h \ + pts/components/pts_component_manager.h pts/components/pts_component_manager.c \ + pts/components/pts_comp_evidence.h pts/components/pts_comp_evidence.c \ + pts/components/pts_comp_func_name.h pts/components/pts_comp_func_name.c \ + pts/components/ita/ita_comp_func_name.h pts/components/ita/ita_comp_func_name.c \ + pts/components/ita/ita_comp_ima.h pts/components/ita/ita_comp_ima.c \ + pts/components/ita/ita_comp_tboot.h pts/components/ita/ita_comp_tboot.c \ + pts/components/ita/ita_comp_tgrub.h pts/components/ita/ita_comp_tgrub.c \ + pts/components/tcg/tcg_comp_func_name.h pts/components/tcg/tcg_comp_func_name.c \ + seg/seg_contract.h seg/seg_contract.c \ + seg/seg_contract_manager.h seg/seg_contract_manager.c \ + seg/seg_env.h seg/seg_env.c \ + swid/swid_error.h swid/swid_error.c \ + swid/swid_inventory.h swid/swid_inventory.c \ + swid/swid_tag.h swid/swid_tag.c \ + swid/swid_tag_id.h swid/swid_tag_id.c \ + tcg/tcg_attr.h tcg/tcg_attr.c \ + tcg/pts/tcg_pts_attr_proto_caps.h tcg/pts/tcg_pts_attr_proto_caps.c \ + tcg/pts/tcg_pts_attr_dh_nonce_params_req.h tcg/pts/tcg_pts_attr_dh_nonce_params_req.c \ + tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h tcg/pts/tcg_pts_attr_dh_nonce_params_resp.c \ + tcg/pts/tcg_pts_attr_dh_nonce_finish.h tcg/pts/tcg_pts_attr_dh_nonce_finish.c \ + tcg/pts/tcg_pts_attr_meas_algo.h tcg/pts/tcg_pts_attr_meas_algo.c \ + tcg/pts/tcg_pts_attr_get_tpm_version_info.h tcg/pts/tcg_pts_attr_get_tpm_version_info.c \ + tcg/pts/tcg_pts_attr_tpm_version_info.h tcg/pts/tcg_pts_attr_tpm_version_info.c \ + tcg/pts/tcg_pts_attr_get_aik.h tcg/pts/tcg_pts_attr_get_aik.c \ + tcg/pts/tcg_pts_attr_aik.h tcg/pts/tcg_pts_attr_aik.c \ + tcg/pts/tcg_pts_attr_req_func_comp_evid.h tcg/pts/tcg_pts_attr_req_func_comp_evid.c \ + tcg/pts/tcg_pts_attr_gen_attest_evid.h tcg/pts/tcg_pts_attr_gen_attest_evid.c \ + tcg/pts/tcg_pts_attr_simple_comp_evid.h tcg/pts/tcg_pts_attr_simple_comp_evid.c \ + tcg/pts/tcg_pts_attr_simple_evid_final.h tcg/pts/tcg_pts_attr_simple_evid_final.c \ + tcg/pts/tcg_pts_attr_req_file_meas.h tcg/pts/tcg_pts_attr_req_file_meas.c \ + tcg/pts/tcg_pts_attr_file_meas.h tcg/pts/tcg_pts_attr_file_meas.c \ + tcg/pts/tcg_pts_attr_req_file_meta.h tcg/pts/tcg_pts_attr_req_file_meta.c \ + tcg/pts/tcg_pts_attr_unix_file_meta.h tcg/pts/tcg_pts_attr_unix_file_meta.c \ + tcg/seg/tcg_seg_attr_max_size.h tcg/seg/tcg_seg_attr_max_size.c \ + tcg/seg/tcg_seg_attr_seg_env.h tcg/seg/tcg_seg_attr_seg_env.c \ + tcg/seg/tcg_seg_attr_next_seg.h tcg/seg/tcg_seg_attr_next_seg.c \ + tcg/swid/tcg_swid_attr_req.h tcg/swid/tcg_swid_attr_req.c \ + tcg/swid/tcg_swid_attr_tag_id_inv.h tcg/swid/tcg_swid_attr_tag_id_inv.c \ + tcg/swid/tcg_swid_attr_tag_inv.h tcg/swid/tcg_swid_attr_tag_inv.c LOCAL_SRC_FILES := $(filter %.c,$(libimcv_la_SOURCES)) diff --git a/src/libimcv/Makefile.am b/src/libimcv/Makefile.am index 4bed3bf03..d9a5cd50d 100644 --- a/src/libimcv/Makefile.am +++ b/src/libimcv/Makefile.am @@ -1,6 +1,7 @@ AM_CPPFLAGS = \ -I$(top_srcdir)/src/libstrongswan \ - -I$(top_srcdir)/src/libtncif + -I$(top_srcdir)/src/libtncif \ + -DIPSEC_SCRIPT=\"${ipsec_script}\" ipseclib_LTLIBRARIES = libimcv.la @@ -11,6 +12,10 @@ libimcv_la_LIBADD = \ $(top_builddir)/src/libstrongswan/libstrongswan.la \ $(top_builddir)/src/libtncif/libtncif.la +if USE_TROUSERS + libimcv_la_LIBADD += -ltspi +endif + if USE_WINDOWS libimcv_la_LIBADD += -lws2_32 endif @@ -54,7 +59,62 @@ libimcv_la_SOURCES = \ os_info/os_info.h os_info/os_info.c \ pa_tnc/pa_tnc_attr.h \ pa_tnc/pa_tnc_msg.h pa_tnc/pa_tnc_msg.c \ - pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c + pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c \ + pts/pts.h pts/pts.c \ + pts/pts_error.h pts/pts_error.c \ + pts/pts_pcr.h pts/pts_pcr.c \ + pts/pts_proto_caps.h \ + pts/pts_req_func_comp_evid.h \ + pts/pts_simple_evid_final.h \ + pts/pts_creds.h pts/pts_creds.c \ + pts/pts_database.h pts/pts_database.c \ + pts/pts_dh_group.h pts/pts_dh_group.c \ + pts/pts_file_meas.h pts/pts_file_meas.c \ + pts/pts_file_meta.h pts/pts_file_meta.c \ + pts/pts_file_type.h pts/pts_file_type.c \ + pts/pts_ima_bios_list.h pts/pts_ima_bios_list.c \ + pts/pts_ima_event_list.h pts/pts_ima_event_list.c \ + pts/pts_meas_algo.h pts/pts_meas_algo.c \ + pts/components/pts_component.h \ + pts/components/pts_component_manager.h pts/components/pts_component_manager.c \ + pts/components/pts_comp_evidence.h pts/components/pts_comp_evidence.c \ + pts/components/pts_comp_func_name.h pts/components/pts_comp_func_name.c \ + pts/components/ita/ita_comp_func_name.h pts/components/ita/ita_comp_func_name.c \ + pts/components/ita/ita_comp_ima.h pts/components/ita/ita_comp_ima.c \ + pts/components/ita/ita_comp_tboot.h pts/components/ita/ita_comp_tboot.c \ + pts/components/ita/ita_comp_tgrub.h pts/components/ita/ita_comp_tgrub.c \ + pts/components/tcg/tcg_comp_func_name.h pts/components/tcg/tcg_comp_func_name.c \ + seg/seg_contract.h seg/seg_contract.c \ + seg/seg_contract_manager.h seg/seg_contract_manager.c \ + seg/seg_env.h seg/seg_env.c \ + swid/swid_error.h swid/swid_error.c \ + swid/swid_inventory.h swid/swid_inventory.c \ + swid/swid_tag.h swid/swid_tag.c \ + swid/swid_tag_id.h swid/swid_tag_id.c \ + tcg/tcg_attr.h tcg/tcg_attr.c \ + tcg/pts/tcg_pts_attr_proto_caps.h tcg/pts/tcg_pts_attr_proto_caps.c \ + tcg/pts/tcg_pts_attr_dh_nonce_params_req.h tcg/pts/tcg_pts_attr_dh_nonce_params_req.c \ + tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h tcg/pts/tcg_pts_attr_dh_nonce_params_resp.c \ + tcg/pts/tcg_pts_attr_dh_nonce_finish.h tcg/pts/tcg_pts_attr_dh_nonce_finish.c \ + tcg/pts/tcg_pts_attr_meas_algo.h tcg/pts/tcg_pts_attr_meas_algo.c \ + tcg/pts/tcg_pts_attr_get_tpm_version_info.h tcg/pts/tcg_pts_attr_get_tpm_version_info.c \ + tcg/pts/tcg_pts_attr_tpm_version_info.h tcg/pts/tcg_pts_attr_tpm_version_info.c \ + tcg/pts/tcg_pts_attr_get_aik.h tcg/pts/tcg_pts_attr_get_aik.c \ + tcg/pts/tcg_pts_attr_aik.h tcg/pts/tcg_pts_attr_aik.c \ + tcg/pts/tcg_pts_attr_req_func_comp_evid.h tcg/pts/tcg_pts_attr_req_func_comp_evid.c \ + tcg/pts/tcg_pts_attr_gen_attest_evid.h tcg/pts/tcg_pts_attr_gen_attest_evid.c \ + tcg/pts/tcg_pts_attr_simple_comp_evid.h tcg/pts/tcg_pts_attr_simple_comp_evid.c \ + tcg/pts/tcg_pts_attr_simple_evid_final.h tcg/pts/tcg_pts_attr_simple_evid_final.c \ + tcg/pts/tcg_pts_attr_req_file_meas.h tcg/pts/tcg_pts_attr_req_file_meas.c \ + tcg/pts/tcg_pts_attr_file_meas.h tcg/pts/tcg_pts_attr_file_meas.c \ + tcg/pts/tcg_pts_attr_req_file_meta.h tcg/pts/tcg_pts_attr_req_file_meta.c \ + tcg/pts/tcg_pts_attr_unix_file_meta.h tcg/pts/tcg_pts_attr_unix_file_meta.c \ + tcg/seg/tcg_seg_attr_max_size.h tcg/seg/tcg_seg_attr_max_size.c \ + tcg/seg/tcg_seg_attr_seg_env.h tcg/seg/tcg_seg_attr_seg_env.c \ + tcg/seg/tcg_seg_attr_next_seg.h tcg/seg/tcg_seg_attr_next_seg.c \ + tcg/swid/tcg_swid_attr_req.h tcg/swid/tcg_swid_attr_req.c \ + tcg/swid/tcg_swid_attr_tag_id_inv.h tcg/swid/tcg_swid_attr_tag_id_inv.c \ + tcg/swid/tcg_swid_attr_tag_inv.h tcg/swid/tcg_swid_attr_tag_inv.c ipsec_SCRIPTS = imv/_imv_policy EXTRA_DIST = imv/_imv_policy Android.mk @@ -95,3 +155,45 @@ endif if USE_IMV_OS SUBDIRS += plugins/imv_os endif + +if USE_IMC_ATTESTATION + SUBDIRS += plugins/imc_attestation +endif + +if USE_IMV_ATTESTATION + SUBDIRS += plugins/imv_attestation +endif + +if USE_IMC_SWID + SUBDIRS += plugins/imc_swid +endif + +if USE_IMV_SWID + SUBDIRS += plugins/imv_swid +endif + +TESTS = imcv_tests + +check_PROGRAMS = $(TESTS) + +imcv_tests_SOURCES = \ + ita/ita_attr_command.c \ + pa_tnc/pa_tnc_attr_manager.c \ + seg/seg_env.c seg/seg_contract.c \ + seg/seg_contract_manager.c \ + suites/test_imcv_seg.c \ + ietf/ietf_attr_pa_tnc_error.c \ + tcg/seg/tcg_seg_attr_seg_env.c \ + imcv.c imcv_tests.h imcv_tests.c + +imcv_tests_CFLAGS = \ + -I$(top_srcdir)/src/libimcv \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libstrongswan/tests \ + @COVERAGE_CFLAGS@ + +imcv_tests_LDFLAGS = @COVERAGE_LDFLAGS@ +imcv_tests_LDADD = \ + $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la \ + $(top_builddir)/src/libstrongswan/tests/libtest.la diff --git a/src/libimcv/Makefile.in b/src/libimcv/Makefile.in index 4614dd607..239e62a17 100644 --- a/src/libimcv/Makefile.in +++ b/src/libimcv/Makefile.in @@ -81,14 +81,21 @@ PRE_UNINSTALL = : POST_UNINSTALL = : build_triplet = @build@ host_triplet = @host@ -@USE_WINDOWS_TRUE@am__append_1 = -lws2_32 +@USE_TROUSERS_TRUE@am__append_1 = -ltspi +@USE_WINDOWS_TRUE@am__append_2 = -lws2_32 ipsec_PROGRAMS = imv_policy_manager$(EXEEXT) -@USE_IMC_TEST_TRUE@am__append_2 = plugins/imc_test -@USE_IMV_TEST_TRUE@am__append_3 = plugins/imv_test -@USE_IMC_SCANNER_TRUE@am__append_4 = plugins/imc_scanner -@USE_IMV_SCANNER_TRUE@am__append_5 = plugins/imv_scanner -@USE_IMC_OS_TRUE@am__append_6 = plugins/imc_os -@USE_IMV_OS_TRUE@am__append_7 = plugins/imv_os +@USE_IMC_TEST_TRUE@am__append_3 = plugins/imc_test +@USE_IMV_TEST_TRUE@am__append_4 = plugins/imv_test +@USE_IMC_SCANNER_TRUE@am__append_5 = plugins/imc_scanner +@USE_IMV_SCANNER_TRUE@am__append_6 = plugins/imv_scanner +@USE_IMC_OS_TRUE@am__append_7 = plugins/imc_os +@USE_IMV_OS_TRUE@am__append_8 = plugins/imv_os +@USE_IMC_ATTESTATION_TRUE@am__append_9 = plugins/imc_attestation +@USE_IMV_ATTESTATION_TRUE@am__append_10 = plugins/imv_attestation +@USE_IMC_SWID_TRUE@am__append_11 = plugins/imc_swid +@USE_IMV_SWID_TRUE@am__append_12 = plugins/imv_swid +TESTS = imcv_tests$(EXEEXT) +check_PROGRAMS = $(am__EXEEXT_1) subdir = src/libimcv DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \ $(top_srcdir)/depcomp $(dist_templates_DATA) @@ -142,7 +149,8 @@ LTLIBRARIES = $(ipseclib_LTLIBRARIES) am__DEPENDENCIES_1 = libimcv_la_DEPENDENCIES = \ $(top_builddir)/src/libstrongswan/libstrongswan.la \ - $(top_builddir)/src/libtncif/libtncif.la $(am__DEPENDENCIES_1) + $(top_builddir)/src/libtncif/libtncif.la $(am__DEPENDENCIES_1) \ + $(am__DEPENDENCIES_1) am__dirstamp = $(am__leading_dot)dirstamp am_libimcv_la_OBJECTS = imcv.lo imc/imc_agent.lo imc/imc_msg.lo \ imc/imc_os_info.lo imv/imv_agent.lo imv/imv_database.lo \ @@ -163,7 +171,42 @@ am_libimcv_la_OBJECTS = imcv.lo imc/imc_agent.lo imc/imc_msg.lo \ ita/ita_attr_get_settings.lo ita/ita_attr_settings.lo \ ita/ita_attr_angel.lo ita/ita_attr_device_id.lo \ os_info/os_info.lo pa_tnc/pa_tnc_msg.lo \ - pa_tnc/pa_tnc_attr_manager.lo + pa_tnc/pa_tnc_attr_manager.lo pts/pts.lo pts/pts_error.lo \ + pts/pts_pcr.lo pts/pts_creds.lo pts/pts_database.lo \ + pts/pts_dh_group.lo pts/pts_file_meas.lo pts/pts_file_meta.lo \ + pts/pts_file_type.lo pts/pts_ima_bios_list.lo \ + pts/pts_ima_event_list.lo pts/pts_meas_algo.lo \ + pts/components/pts_component_manager.lo \ + pts/components/pts_comp_evidence.lo \ + pts/components/pts_comp_func_name.lo \ + pts/components/ita/ita_comp_func_name.lo \ + pts/components/ita/ita_comp_ima.lo \ + pts/components/ita/ita_comp_tboot.lo \ + pts/components/ita/ita_comp_tgrub.lo \ + pts/components/tcg/tcg_comp_func_name.lo seg/seg_contract.lo \ + seg/seg_contract_manager.lo seg/seg_env.lo swid/swid_error.lo \ + swid/swid_inventory.lo swid/swid_tag.lo swid/swid_tag_id.lo \ + tcg/tcg_attr.lo tcg/pts/tcg_pts_attr_proto_caps.lo \ + tcg/pts/tcg_pts_attr_dh_nonce_params_req.lo \ + tcg/pts/tcg_pts_attr_dh_nonce_params_resp.lo \ + tcg/pts/tcg_pts_attr_dh_nonce_finish.lo \ + tcg/pts/tcg_pts_attr_meas_algo.lo \ + tcg/pts/tcg_pts_attr_get_tpm_version_info.lo \ + tcg/pts/tcg_pts_attr_tpm_version_info.lo \ + tcg/pts/tcg_pts_attr_get_aik.lo tcg/pts/tcg_pts_attr_aik.lo \ + tcg/pts/tcg_pts_attr_req_func_comp_evid.lo \ + tcg/pts/tcg_pts_attr_gen_attest_evid.lo \ + tcg/pts/tcg_pts_attr_simple_comp_evid.lo \ + tcg/pts/tcg_pts_attr_simple_evid_final.lo \ + tcg/pts/tcg_pts_attr_req_file_meas.lo \ + tcg/pts/tcg_pts_attr_file_meas.lo \ + tcg/pts/tcg_pts_attr_req_file_meta.lo \ + tcg/pts/tcg_pts_attr_unix_file_meta.lo \ + tcg/seg/tcg_seg_attr_max_size.lo \ + tcg/seg/tcg_seg_attr_seg_env.lo \ + tcg/seg/tcg_seg_attr_next_seg.lo tcg/swid/tcg_swid_attr_req.lo \ + tcg/swid/tcg_swid_attr_tag_id_inv.lo \ + tcg/swid/tcg_swid_attr_tag_inv.lo libimcv_la_OBJECTS = $(am_libimcv_la_OBJECTS) AM_V_lt = $(am__v_lt_@AM_V@) am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@) @@ -172,7 +215,24 @@ am__v_lt_1 = libimcv_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ $(libimcv_la_LDFLAGS) $(LDFLAGS) -o $@ +am__EXEEXT_1 = imcv_tests$(EXEEXT) PROGRAMS = $(ipsec_PROGRAMS) +am_imcv_tests_OBJECTS = ita/imcv_tests-ita_attr_command.$(OBJEXT) \ + pa_tnc/imcv_tests-pa_tnc_attr_manager.$(OBJEXT) \ + seg/imcv_tests-seg_env.$(OBJEXT) \ + seg/imcv_tests-seg_contract.$(OBJEXT) \ + seg/imcv_tests-seg_contract_manager.$(OBJEXT) \ + suites/imcv_tests-test_imcv_seg.$(OBJEXT) \ + ietf/imcv_tests-ietf_attr_pa_tnc_error.$(OBJEXT) \ + tcg/seg/imcv_tests-tcg_seg_attr_seg_env.$(OBJEXT) \ + imcv_tests-imcv.$(OBJEXT) imcv_tests-imcv_tests.$(OBJEXT) +imcv_tests_OBJECTS = $(am_imcv_tests_OBJECTS) +imcv_tests_DEPENDENCIES = $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la \ + $(top_builddir)/src/libstrongswan/tests/libtest.la +imcv_tests_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CCLD) $(imcv_tests_CFLAGS) \ + $(CFLAGS) $(imcv_tests_LDFLAGS) $(LDFLAGS) -o $@ am_imv_policy_manager_OBJECTS = imv/imv_policy_manager.$(OBJEXT) \ imv/imv_policy_manager_usage.$(OBJEXT) imv_policy_manager_OBJECTS = $(am_imv_policy_manager_OBJECTS) @@ -213,8 +273,10 @@ AM_V_CCLD = $(am__v_CCLD_@AM_V@) am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@) am__v_CCLD_0 = @echo " CCLD " $@; am__v_CCLD_1 = -SOURCES = $(libimcv_la_SOURCES) $(imv_policy_manager_SOURCES) -DIST_SOURCES = $(libimcv_la_SOURCES) $(imv_policy_manager_SOURCES) +SOURCES = $(libimcv_la_SOURCES) $(imcv_tests_SOURCES) \ + $(imv_policy_manager_SOURCES) +DIST_SOURCES = $(libimcv_la_SOURCES) $(imcv_tests_SOURCES) \ + $(imv_policy_manager_SOURCES) RECURSIVE_TARGETS = all-recursive check-recursive cscopelist-recursive \ ctags-recursive dvi-recursive html-recursive info-recursive \ install-data-recursive install-dvi-recursive \ @@ -256,8 +318,32 @@ am__define_uniq_tagged_files = \ done | $(am__uniquify_input)` ETAGS = etags CTAGS = ctags +am__tty_colors_dummy = \ + mgn= red= grn= lgn= blu= brg= std=; \ + am__color_tests=no +am__tty_colors = { \ + $(am__tty_colors_dummy); \ + if test "X$(AM_COLOR_TESTS)" = Xno; then \ + am__color_tests=no; \ + elif test "X$(AM_COLOR_TESTS)" = Xalways; then \ + am__color_tests=yes; \ + elif test "X$$TERM" != Xdumb && { test -t 1; } 2>/dev/null; then \ + am__color_tests=yes; \ + fi; \ + if test $$am__color_tests = yes; then \ + red='[0;31m'; \ + grn='[0;32m'; \ + lgn='[1;32m'; \ + blu='[1;34m'; \ + mgn='[0;35m'; \ + brg='[1m'; \ + std='[m'; \ + fi; \ +} DIST_SUBDIRS = . plugins/imc_test plugins/imv_test plugins/imc_scanner \ - plugins/imv_scanner plugins/imc_os plugins/imv_os + plugins/imv_scanner plugins/imc_os plugins/imv_os \ + plugins/imc_attestation plugins/imv_attestation \ + plugins/imc_swid plugins/imv_swid DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) am__relativize = \ dir0=`pwd`; \ @@ -315,6 +401,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -375,6 +462,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -440,6 +528,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -487,6 +577,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ @@ -498,7 +592,8 @@ xml_CFLAGS = @xml_CFLAGS@ xml_LIBS = @xml_LIBS@ AM_CPPFLAGS = \ -I$(top_srcdir)/src/libstrongswan \ - -I$(top_srcdir)/src/libtncif + -I$(top_srcdir)/src/libtncif \ + -DIPSEC_SCRIPT=\"${ipsec_script}\" ipseclib_LTLIBRARIES = libimcv.la libimcv_la_LDFLAGS = \ @@ -506,7 +601,8 @@ libimcv_la_LDFLAGS = \ libimcv_la_LIBADD = \ $(top_builddir)/src/libstrongswan/libstrongswan.la \ - $(top_builddir)/src/libtncif/libtncif.la $(am__append_1) + $(top_builddir)/src/libtncif/libtncif.la $(am__append_1) \ + $(am__append_2) libimcv_la_SOURCES = \ imcv.h imcv.c \ imc/imc_agent.h imc/imc_agent.c imc/imc_state.h \ @@ -546,7 +642,62 @@ libimcv_la_SOURCES = \ os_info/os_info.h os_info/os_info.c \ pa_tnc/pa_tnc_attr.h \ pa_tnc/pa_tnc_msg.h pa_tnc/pa_tnc_msg.c \ - pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c + pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c \ + pts/pts.h pts/pts.c \ + pts/pts_error.h pts/pts_error.c \ + pts/pts_pcr.h pts/pts_pcr.c \ + pts/pts_proto_caps.h \ + pts/pts_req_func_comp_evid.h \ + pts/pts_simple_evid_final.h \ + pts/pts_creds.h pts/pts_creds.c \ + pts/pts_database.h pts/pts_database.c \ + pts/pts_dh_group.h pts/pts_dh_group.c \ + pts/pts_file_meas.h pts/pts_file_meas.c \ + pts/pts_file_meta.h pts/pts_file_meta.c \ + pts/pts_file_type.h pts/pts_file_type.c \ + pts/pts_ima_bios_list.h pts/pts_ima_bios_list.c \ + pts/pts_ima_event_list.h pts/pts_ima_event_list.c \ + pts/pts_meas_algo.h pts/pts_meas_algo.c \ + pts/components/pts_component.h \ + pts/components/pts_component_manager.h pts/components/pts_component_manager.c \ + pts/components/pts_comp_evidence.h pts/components/pts_comp_evidence.c \ + pts/components/pts_comp_func_name.h pts/components/pts_comp_func_name.c \ + pts/components/ita/ita_comp_func_name.h pts/components/ita/ita_comp_func_name.c \ + pts/components/ita/ita_comp_ima.h pts/components/ita/ita_comp_ima.c \ + pts/components/ita/ita_comp_tboot.h pts/components/ita/ita_comp_tboot.c \ + pts/components/ita/ita_comp_tgrub.h pts/components/ita/ita_comp_tgrub.c \ + pts/components/tcg/tcg_comp_func_name.h pts/components/tcg/tcg_comp_func_name.c \ + seg/seg_contract.h seg/seg_contract.c \ + seg/seg_contract_manager.h seg/seg_contract_manager.c \ + seg/seg_env.h seg/seg_env.c \ + swid/swid_error.h swid/swid_error.c \ + swid/swid_inventory.h swid/swid_inventory.c \ + swid/swid_tag.h swid/swid_tag.c \ + swid/swid_tag_id.h swid/swid_tag_id.c \ + tcg/tcg_attr.h tcg/tcg_attr.c \ + tcg/pts/tcg_pts_attr_proto_caps.h tcg/pts/tcg_pts_attr_proto_caps.c \ + tcg/pts/tcg_pts_attr_dh_nonce_params_req.h tcg/pts/tcg_pts_attr_dh_nonce_params_req.c \ + tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h tcg/pts/tcg_pts_attr_dh_nonce_params_resp.c \ + tcg/pts/tcg_pts_attr_dh_nonce_finish.h tcg/pts/tcg_pts_attr_dh_nonce_finish.c \ + tcg/pts/tcg_pts_attr_meas_algo.h tcg/pts/tcg_pts_attr_meas_algo.c \ + tcg/pts/tcg_pts_attr_get_tpm_version_info.h tcg/pts/tcg_pts_attr_get_tpm_version_info.c \ + tcg/pts/tcg_pts_attr_tpm_version_info.h tcg/pts/tcg_pts_attr_tpm_version_info.c \ + tcg/pts/tcg_pts_attr_get_aik.h tcg/pts/tcg_pts_attr_get_aik.c \ + tcg/pts/tcg_pts_attr_aik.h tcg/pts/tcg_pts_attr_aik.c \ + tcg/pts/tcg_pts_attr_req_func_comp_evid.h tcg/pts/tcg_pts_attr_req_func_comp_evid.c \ + tcg/pts/tcg_pts_attr_gen_attest_evid.h tcg/pts/tcg_pts_attr_gen_attest_evid.c \ + tcg/pts/tcg_pts_attr_simple_comp_evid.h tcg/pts/tcg_pts_attr_simple_comp_evid.c \ + tcg/pts/tcg_pts_attr_simple_evid_final.h tcg/pts/tcg_pts_attr_simple_evid_final.c \ + tcg/pts/tcg_pts_attr_req_file_meas.h tcg/pts/tcg_pts_attr_req_file_meas.c \ + tcg/pts/tcg_pts_attr_file_meas.h tcg/pts/tcg_pts_attr_file_meas.c \ + tcg/pts/tcg_pts_attr_req_file_meta.h tcg/pts/tcg_pts_attr_req_file_meta.c \ + tcg/pts/tcg_pts_attr_unix_file_meta.h tcg/pts/tcg_pts_attr_unix_file_meta.c \ + tcg/seg/tcg_seg_attr_max_size.h tcg/seg/tcg_seg_attr_max_size.c \ + tcg/seg/tcg_seg_attr_seg_env.h tcg/seg/tcg_seg_attr_seg_env.c \ + tcg/seg/tcg_seg_attr_next_seg.h tcg/seg/tcg_seg_attr_next_seg.c \ + tcg/swid/tcg_swid_attr_req.h tcg/swid/tcg_swid_attr_req.c \ + tcg/swid/tcg_swid_attr_tag_id_inv.h tcg/swid/tcg_swid_attr_tag_id_inv.c \ + tcg/swid/tcg_swid_attr_tag_inv.h tcg/swid/tcg_swid_attr_tag_inv.c ipsec_SCRIPTS = imv/_imv_policy EXTRA_DIST = imv/_imv_policy Android.mk @@ -560,8 +711,32 @@ imv_policy_manager_LDADD = \ $(top_builddir)/src/libstrongswan/libstrongswan.la #imv/imv_policy_manager.o : $(top_builddir)/config.status -SUBDIRS = . $(am__append_2) $(am__append_3) $(am__append_4) \ - $(am__append_5) $(am__append_6) $(am__append_7) +SUBDIRS = . $(am__append_3) $(am__append_4) $(am__append_5) \ + $(am__append_6) $(am__append_7) $(am__append_8) \ + $(am__append_9) $(am__append_10) $(am__append_11) \ + $(am__append_12) +imcv_tests_SOURCES = \ + ita/ita_attr_command.c \ + pa_tnc/pa_tnc_attr_manager.c \ + seg/seg_env.c seg/seg_contract.c \ + seg/seg_contract_manager.c \ + suites/test_imcv_seg.c \ + ietf/ietf_attr_pa_tnc_error.c \ + tcg/seg/tcg_seg_attr_seg_env.c \ + imcv.c imcv_tests.h imcv_tests.c + +imcv_tests_CFLAGS = \ + -I$(top_srcdir)/src/libimcv \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libstrongswan/tests \ + @COVERAGE_CFLAGS@ + +imcv_tests_LDFLAGS = @COVERAGE_LDFLAGS@ +imcv_tests_LDADD = \ + $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la \ + $(top_builddir)/src/libstrongswan/tests/libtest.la + all: all-recursive .SUFFIXES: @@ -728,9 +903,176 @@ pa_tnc/pa_tnc_msg.lo: pa_tnc/$(am__dirstamp) \ pa_tnc/$(DEPDIR)/$(am__dirstamp) pa_tnc/pa_tnc_attr_manager.lo: pa_tnc/$(am__dirstamp) \ pa_tnc/$(DEPDIR)/$(am__dirstamp) +pts/$(am__dirstamp): + @$(MKDIR_P) pts + @: > pts/$(am__dirstamp) +pts/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) pts/$(DEPDIR) + @: > pts/$(DEPDIR)/$(am__dirstamp) +pts/pts.lo: pts/$(am__dirstamp) pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_error.lo: pts/$(am__dirstamp) pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_pcr.lo: pts/$(am__dirstamp) pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_creds.lo: pts/$(am__dirstamp) pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_database.lo: pts/$(am__dirstamp) pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_dh_group.lo: pts/$(am__dirstamp) pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_file_meas.lo: pts/$(am__dirstamp) \ + pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_file_meta.lo: pts/$(am__dirstamp) \ + pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_file_type.lo: pts/$(am__dirstamp) \ + pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_ima_bios_list.lo: pts/$(am__dirstamp) \ + pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_ima_event_list.lo: pts/$(am__dirstamp) \ + pts/$(DEPDIR)/$(am__dirstamp) +pts/pts_meas_algo.lo: pts/$(am__dirstamp) \ + pts/$(DEPDIR)/$(am__dirstamp) +pts/components/$(am__dirstamp): + @$(MKDIR_P) pts/components + @: > pts/components/$(am__dirstamp) +pts/components/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) pts/components/$(DEPDIR) + @: > pts/components/$(DEPDIR)/$(am__dirstamp) +pts/components/pts_component_manager.lo: \ + pts/components/$(am__dirstamp) \ + pts/components/$(DEPDIR)/$(am__dirstamp) +pts/components/pts_comp_evidence.lo: pts/components/$(am__dirstamp) \ + pts/components/$(DEPDIR)/$(am__dirstamp) +pts/components/pts_comp_func_name.lo: pts/components/$(am__dirstamp) \ + pts/components/$(DEPDIR)/$(am__dirstamp) +pts/components/ita/$(am__dirstamp): + @$(MKDIR_P) pts/components/ita + @: > pts/components/ita/$(am__dirstamp) +pts/components/ita/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) pts/components/ita/$(DEPDIR) + @: > pts/components/ita/$(DEPDIR)/$(am__dirstamp) +pts/components/ita/ita_comp_func_name.lo: \ + pts/components/ita/$(am__dirstamp) \ + pts/components/ita/$(DEPDIR)/$(am__dirstamp) +pts/components/ita/ita_comp_ima.lo: \ + pts/components/ita/$(am__dirstamp) \ + pts/components/ita/$(DEPDIR)/$(am__dirstamp) +pts/components/ita/ita_comp_tboot.lo: \ + pts/components/ita/$(am__dirstamp) \ + pts/components/ita/$(DEPDIR)/$(am__dirstamp) +pts/components/ita/ita_comp_tgrub.lo: \ + pts/components/ita/$(am__dirstamp) \ + pts/components/ita/$(DEPDIR)/$(am__dirstamp) +pts/components/tcg/$(am__dirstamp): + @$(MKDIR_P) pts/components/tcg + @: > pts/components/tcg/$(am__dirstamp) +pts/components/tcg/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) pts/components/tcg/$(DEPDIR) + @: > pts/components/tcg/$(DEPDIR)/$(am__dirstamp) +pts/components/tcg/tcg_comp_func_name.lo: \ + pts/components/tcg/$(am__dirstamp) \ + pts/components/tcg/$(DEPDIR)/$(am__dirstamp) +seg/$(am__dirstamp): + @$(MKDIR_P) seg + @: > seg/$(am__dirstamp) +seg/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) seg/$(DEPDIR) + @: > seg/$(DEPDIR)/$(am__dirstamp) +seg/seg_contract.lo: seg/$(am__dirstamp) seg/$(DEPDIR)/$(am__dirstamp) +seg/seg_contract_manager.lo: seg/$(am__dirstamp) \ + seg/$(DEPDIR)/$(am__dirstamp) +seg/seg_env.lo: seg/$(am__dirstamp) seg/$(DEPDIR)/$(am__dirstamp) +swid/$(am__dirstamp): + @$(MKDIR_P) swid + @: > swid/$(am__dirstamp) +swid/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) swid/$(DEPDIR) + @: > swid/$(DEPDIR)/$(am__dirstamp) +swid/swid_error.lo: swid/$(am__dirstamp) \ + swid/$(DEPDIR)/$(am__dirstamp) +swid/swid_inventory.lo: swid/$(am__dirstamp) \ + swid/$(DEPDIR)/$(am__dirstamp) +swid/swid_tag.lo: swid/$(am__dirstamp) swid/$(DEPDIR)/$(am__dirstamp) +swid/swid_tag_id.lo: swid/$(am__dirstamp) \ + swid/$(DEPDIR)/$(am__dirstamp) +tcg/$(am__dirstamp): + @$(MKDIR_P) tcg + @: > tcg/$(am__dirstamp) +tcg/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) tcg/$(DEPDIR) + @: > tcg/$(DEPDIR)/$(am__dirstamp) +tcg/tcg_attr.lo: tcg/$(am__dirstamp) tcg/$(DEPDIR)/$(am__dirstamp) +tcg/pts/$(am__dirstamp): + @$(MKDIR_P) tcg/pts + @: > tcg/pts/$(am__dirstamp) +tcg/pts/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) tcg/pts/$(DEPDIR) + @: > tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_proto_caps.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_dh_nonce_params_req.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_dh_nonce_params_resp.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_dh_nonce_finish.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_meas_algo.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_get_tpm_version_info.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_tpm_version_info.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_get_aik.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_aik.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_req_func_comp_evid.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_gen_attest_evid.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_simple_comp_evid.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_simple_evid_final.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_req_file_meas.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_file_meas.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_req_file_meta.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/pts/tcg_pts_attr_unix_file_meta.lo: tcg/pts/$(am__dirstamp) \ + tcg/pts/$(DEPDIR)/$(am__dirstamp) +tcg/seg/$(am__dirstamp): + @$(MKDIR_P) tcg/seg + @: > tcg/seg/$(am__dirstamp) +tcg/seg/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) tcg/seg/$(DEPDIR) + @: > tcg/seg/$(DEPDIR)/$(am__dirstamp) +tcg/seg/tcg_seg_attr_max_size.lo: tcg/seg/$(am__dirstamp) \ + tcg/seg/$(DEPDIR)/$(am__dirstamp) +tcg/seg/tcg_seg_attr_seg_env.lo: tcg/seg/$(am__dirstamp) \ + tcg/seg/$(DEPDIR)/$(am__dirstamp) +tcg/seg/tcg_seg_attr_next_seg.lo: tcg/seg/$(am__dirstamp) \ + tcg/seg/$(DEPDIR)/$(am__dirstamp) +tcg/swid/$(am__dirstamp): + @$(MKDIR_P) tcg/swid + @: > tcg/swid/$(am__dirstamp) +tcg/swid/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) tcg/swid/$(DEPDIR) + @: > tcg/swid/$(DEPDIR)/$(am__dirstamp) +tcg/swid/tcg_swid_attr_req.lo: tcg/swid/$(am__dirstamp) \ + tcg/swid/$(DEPDIR)/$(am__dirstamp) +tcg/swid/tcg_swid_attr_tag_id_inv.lo: tcg/swid/$(am__dirstamp) \ + tcg/swid/$(DEPDIR)/$(am__dirstamp) +tcg/swid/tcg_swid_attr_tag_inv.lo: tcg/swid/$(am__dirstamp) \ + tcg/swid/$(DEPDIR)/$(am__dirstamp) libimcv.la: $(libimcv_la_OBJECTS) $(libimcv_la_DEPENDENCIES) $(EXTRA_libimcv_la_DEPENDENCIES) $(AM_V_CCLD)$(libimcv_la_LINK) -rpath $(ipseclibdir) $(libimcv_la_OBJECTS) $(libimcv_la_LIBADD) $(LIBS) + +clean-checkPROGRAMS: + @list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \ + echo " rm -f" $$list; \ + rm -f $$list || exit $$?; \ + test -n "$(EXEEXT)" || exit 0; \ + list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \ + echo " rm -f" $$list; \ + rm -f $$list install-ipsecPROGRAMS: $(ipsec_PROGRAMS) @$(NORMAL_INSTALL) @list='$(ipsec_PROGRAMS)'; test -n "$(ipsecdir)" || list=; \ @@ -780,6 +1122,32 @@ clean-ipsecPROGRAMS: list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \ echo " rm -f" $$list; \ rm -f $$list +ita/imcv_tests-ita_attr_command.$(OBJEXT): ita/$(am__dirstamp) \ + ita/$(DEPDIR)/$(am__dirstamp) +pa_tnc/imcv_tests-pa_tnc_attr_manager.$(OBJEXT): \ + pa_tnc/$(am__dirstamp) pa_tnc/$(DEPDIR)/$(am__dirstamp) +seg/imcv_tests-seg_env.$(OBJEXT): seg/$(am__dirstamp) \ + seg/$(DEPDIR)/$(am__dirstamp) +seg/imcv_tests-seg_contract.$(OBJEXT): seg/$(am__dirstamp) \ + seg/$(DEPDIR)/$(am__dirstamp) +seg/imcv_tests-seg_contract_manager.$(OBJEXT): seg/$(am__dirstamp) \ + seg/$(DEPDIR)/$(am__dirstamp) +suites/$(am__dirstamp): + @$(MKDIR_P) suites + @: > suites/$(am__dirstamp) +suites/$(DEPDIR)/$(am__dirstamp): + @$(MKDIR_P) suites/$(DEPDIR) + @: > suites/$(DEPDIR)/$(am__dirstamp) +suites/imcv_tests-test_imcv_seg.$(OBJEXT): suites/$(am__dirstamp) \ + suites/$(DEPDIR)/$(am__dirstamp) +ietf/imcv_tests-ietf_attr_pa_tnc_error.$(OBJEXT): \ + ietf/$(am__dirstamp) ietf/$(DEPDIR)/$(am__dirstamp) +tcg/seg/imcv_tests-tcg_seg_attr_seg_env.$(OBJEXT): \ + tcg/seg/$(am__dirstamp) tcg/seg/$(DEPDIR)/$(am__dirstamp) + +imcv_tests$(EXEEXT): $(imcv_tests_OBJECTS) $(imcv_tests_DEPENDENCIES) $(EXTRA_imcv_tests_DEPENDENCIES) + @rm -f imcv_tests$(EXEEXT) + $(AM_V_CCLD)$(imcv_tests_LINK) $(imcv_tests_OBJECTS) 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+@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(imcv_tests_CFLAGS) $(CFLAGS) -MT imcv_tests-imcv_tests.obj -MD -MP -MF $(DEPDIR)/imcv_tests-imcv_tests.Tpo -c -o imcv_tests-imcv_tests.obj `if test -f 'imcv_tests.c'; then $(CYGPATH_W) 'imcv_tests.c'; else $(CYGPATH_W) '$(srcdir)/imcv_tests.c'; fi` +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/imcv_tests-imcv_tests.Tpo $(DEPDIR)/imcv_tests-imcv_tests.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='imcv_tests.c' object='imcv_tests-imcv_tests.obj' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(imcv_tests_CFLAGS) $(CFLAGS) -c -o imcv_tests-imcv_tests.obj `if test -f 'imcv_tests.c'; then $(CYGPATH_W) 'imcv_tests.c'; else $(CYGPATH_W) '$(srcdir)/imcv_tests.c'; fi` + mostlyclean-libtool: -rm -f *.lo @@ -917,6 +1507,16 @@ clean-libtool: -rm -rf ita/.libs ita/_libs -rm -rf os_info/.libs os_info/_libs -rm -rf pa_tnc/.libs pa_tnc/_libs + -rm -rf pts/.libs pts/_libs + -rm -rf pts/components/.libs pts/components/_libs + -rm -rf pts/components/ita/.libs pts/components/ita/_libs + -rm -rf pts/components/tcg/.libs pts/components/tcg/_libs + -rm -rf seg/.libs seg/_libs + -rm -rf swid/.libs swid/_libs + -rm -rf tcg/.libs tcg/_libs + -rm -rf tcg/pts/.libs tcg/pts/_libs + -rm -rf tcg/seg/.libs tcg/seg/_libs + -rm -rf tcg/swid/.libs tcg/swid/_libs install-dist_templatesDATA: $(dist_templates_DATA) @$(NORMAL_INSTALL) @list='$(dist_templates_DATA)'; test -n "$(templatesdir)" || list=; \ @@ -1038,6 +1638,99 @@ cscopelist-am: $(am__tagged_files) distclean-tags: -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags +check-TESTS: $(TESTS) + @failed=0; all=0; xfail=0; xpass=0; skip=0; \ + srcdir=$(srcdir); export srcdir; \ + list=' $(TESTS) '; \ + $(am__tty_colors); \ + if test -n "$$list"; then \ + for tst in $$list; do \ + if test -f ./$$tst; then dir=./; \ + elif test -f $$tst; then dir=; \ + else dir="$(srcdir)/"; fi; \ + if $(TESTS_ENVIRONMENT) $${dir}$$tst $(AM_TESTS_FD_REDIRECT); then \ + all=`expr $$all + 1`; \ + case " $(XFAIL_TESTS) " in \ + *[\ \ ]$$tst[\ \ ]*) \ + xpass=`expr $$xpass + 1`; \ + failed=`expr $$failed + 1`; \ + col=$$red; res=XPASS; \ + ;; \ + *) \ + col=$$grn; res=PASS; \ + ;; \ + esac; \ + elif test $$? -ne 77; then \ + all=`expr $$all + 1`; \ + case " $(XFAIL_TESTS) " in \ + *[\ \ ]$$tst[\ \ ]*) \ + xfail=`expr $$xfail + 1`; \ + col=$$lgn; res=XFAIL; \ + ;; \ + *) \ + failed=`expr $$failed + 1`; \ + col=$$red; res=FAIL; \ + ;; \ + esac; \ + else \ + skip=`expr $$skip + 1`; \ + col=$$blu; res=SKIP; \ + fi; \ + echo "$${col}$$res$${std}: $$tst"; \ + done; \ + if test "$$all" -eq 1; then \ + tests="test"; \ + All=""; \ + else \ + tests="tests"; \ + All="All "; \ + fi; \ + if test "$$failed" -eq 0; then \ + if test "$$xfail" -eq 0; then \ + banner="$$All$$all $$tests passed"; \ + else \ + if test "$$xfail" -eq 1; then failures=failure; else failures=failures; fi; \ + banner="$$All$$all $$tests behaved as expected ($$xfail expected $$failures)"; \ + fi; \ + else \ + if test "$$xpass" -eq 0; then \ + banner="$$failed of $$all $$tests failed"; \ + else \ + if test "$$xpass" -eq 1; then passes=pass; else passes=passes; fi; \ + banner="$$failed of $$all $$tests did not behave as expected ($$xpass unexpected $$passes)"; \ + fi; \ + fi; \ + dashes="$$banner"; \ + skipped=""; \ + if test "$$skip" -ne 0; then \ + if test "$$skip" -eq 1; then \ + skipped="($$skip test was not run)"; \ + else \ + skipped="($$skip tests were not run)"; \ + fi; \ + test `echo "$$skipped" | wc -c` -le `echo "$$banner" | wc -c` || \ + dashes="$$skipped"; \ + fi; \ + report=""; \ + if test "$$failed" -ne 0 && test -n "$(PACKAGE_BUGREPORT)"; then \ + report="Please report to $(PACKAGE_BUGREPORT)"; \ + test `echo "$$report" | wc -c` -le `echo "$$banner" | wc -c` || \ + dashes="$$report"; \ + fi; \ + dashes=`echo "$$dashes" | sed s/./=/g`; \ + if test "$$failed" -eq 0; then \ + col="$$grn"; \ + else \ + col="$$red"; \ + fi; \ + echo "$${col}$$dashes$${std}"; \ + echo "$${col}$$banner$${std}"; \ + test -z "$$skipped" || echo "$${col}$$skipped$${std}"; \ + test -z "$$report" || echo "$${col}$$report$${std}"; \ + echo "$${col}$$dashes$${std}"; \ + test "$$failed" -eq 0; \ + else :; fi + distdir: $(DISTFILES) @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \ @@ -1094,6 +1787,8 @@ distdir: $(DISTFILES) fi; \ done check-am: all-am + $(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS) + $(MAKE) $(AM_MAKEFLAGS) check-TESTS check: check-recursive all-am: Makefile $(LTLIBRARIES) $(PROGRAMS) $(SCRIPTS) $(DATA) installdirs: installdirs-recursive @@ -1139,17 +1834,39 @@ distclean-generic: -rm -f os_info/$(am__dirstamp) -rm -f pa_tnc/$(DEPDIR)/$(am__dirstamp) -rm -f pa_tnc/$(am__dirstamp) + -rm -f pts/$(DEPDIR)/$(am__dirstamp) + -rm -f pts/$(am__dirstamp) + -rm -f pts/components/$(DEPDIR)/$(am__dirstamp) + -rm -f pts/components/$(am__dirstamp) + -rm -f pts/components/ita/$(DEPDIR)/$(am__dirstamp) + -rm -f pts/components/ita/$(am__dirstamp) + -rm -f pts/components/tcg/$(DEPDIR)/$(am__dirstamp) + -rm -f pts/components/tcg/$(am__dirstamp) + -rm -f seg/$(DEPDIR)/$(am__dirstamp) + -rm -f seg/$(am__dirstamp) + -rm -f suites/$(DEPDIR)/$(am__dirstamp) + -rm -f suites/$(am__dirstamp) + -rm -f swid/$(DEPDIR)/$(am__dirstamp) + -rm -f swid/$(am__dirstamp) + -rm -f tcg/$(DEPDIR)/$(am__dirstamp) + -rm -f tcg/$(am__dirstamp) + -rm -f tcg/pts/$(DEPDIR)/$(am__dirstamp) + -rm -f tcg/pts/$(am__dirstamp) + -rm -f tcg/seg/$(DEPDIR)/$(am__dirstamp) + -rm -f tcg/seg/$(am__dirstamp) + -rm -f tcg/swid/$(DEPDIR)/$(am__dirstamp) + -rm -f tcg/swid/$(am__dirstamp) maintainer-clean-generic: @echo "This command is intended for maintainers to use" @echo "it deletes files that may require special tools to rebuild." clean: clean-recursive -clean-am: clean-generic clean-ipsecPROGRAMS clean-ipseclibLTLIBRARIES \ - clean-libtool mostlyclean-am +clean-am: clean-checkPROGRAMS clean-generic clean-ipsecPROGRAMS \ + clean-ipseclibLTLIBRARIES clean-libtool mostlyclean-am distclean: distclean-recursive - -rm -rf ./$(DEPDIR) ietf/$(DEPDIR) imc/$(DEPDIR) imv/$(DEPDIR) ita/$(DEPDIR) os_info/$(DEPDIR) pa_tnc/$(DEPDIR) + -rm -rf ./$(DEPDIR) ietf/$(DEPDIR) imc/$(DEPDIR) imv/$(DEPDIR) ita/$(DEPDIR) os_info/$(DEPDIR) pa_tnc/$(DEPDIR) pts/$(DEPDIR) pts/components/$(DEPDIR) pts/components/ita/$(DEPDIR) pts/components/tcg/$(DEPDIR) seg/$(DEPDIR) suites/$(DEPDIR) swid/$(DEPDIR) tcg/$(DEPDIR) tcg/pts/$(DEPDIR) tcg/seg/$(DEPDIR) tcg/swid/$(DEPDIR) -rm -f Makefile distclean-am: clean-am distclean-compile distclean-generic \ distclean-tags @@ -1196,7 +1913,7 @@ install-ps-am: installcheck-am: maintainer-clean: maintainer-clean-recursive - -rm -rf ./$(DEPDIR) ietf/$(DEPDIR) imc/$(DEPDIR) imv/$(DEPDIR) ita/$(DEPDIR) os_info/$(DEPDIR) pa_tnc/$(DEPDIR) + -rm -rf ./$(DEPDIR) ietf/$(DEPDIR) imc/$(DEPDIR) imv/$(DEPDIR) ita/$(DEPDIR) os_info/$(DEPDIR) pa_tnc/$(DEPDIR) pts/$(DEPDIR) pts/components/$(DEPDIR) pts/components/ita/$(DEPDIR) pts/components/tcg/$(DEPDIR) seg/$(DEPDIR) suites/$(DEPDIR) swid/$(DEPDIR) tcg/$(DEPDIR) tcg/pts/$(DEPDIR) tcg/seg/$(DEPDIR) tcg/swid/$(DEPDIR) -rm -f Makefile maintainer-clean-am: distclean-am maintainer-clean-generic @@ -1216,17 +1933,17 @@ ps-am: uninstall-am: uninstall-dist_templatesDATA uninstall-ipsecPROGRAMS \ uninstall-ipsecSCRIPTS uninstall-ipseclibLTLIBRARIES -.MAKE: $(am__recursive_targets) install-am install-strip +.MAKE: $(am__recursive_targets) check-am install-am install-strip .PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \ - check-am clean clean-generic clean-ipsecPROGRAMS \ - clean-ipseclibLTLIBRARIES clean-libtool cscopelist-am ctags \ - ctags-am distclean distclean-compile distclean-generic \ - distclean-libtool distclean-tags distdir dvi dvi-am html \ - html-am info info-am install install-am install-data \ - install-data-am install-dist_templatesDATA install-dvi \ - install-dvi-am install-exec install-exec-am install-html \ - install-html-am install-info install-info-am \ + check-TESTS check-am clean clean-checkPROGRAMS clean-generic \ + clean-ipsecPROGRAMS clean-ipseclibLTLIBRARIES clean-libtool \ + cscopelist-am ctags ctags-am distclean distclean-compile \ + distclean-generic distclean-libtool distclean-tags distdir dvi \ + dvi-am html html-am info info-am install install-am \ + install-data install-data-am install-dist_templatesDATA \ + install-dvi install-dvi-am install-exec install-exec-am \ + install-html install-html-am install-info install-info-am \ install-ipsecPROGRAMS install-ipsecSCRIPTS \ install-ipseclibLTLIBRARIES install-man install-pdf \ install-pdf-am install-ps install-ps-am install-strip \ diff --git a/src/libimcv/ietf/ietf_attr.c b/src/libimcv/ietf/ietf_attr.c index 2f3819898..67269af53 100644 --- a/src/libimcv/ietf/ietf_attr.c +++ b/src/libimcv/ietf/ietf_attr.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -47,34 +47,35 @@ ENUM(ietf_attr_names, IETF_ATTR_TESTING, IETF_ATTR_FACTORY_DEFAULT_PWD_ENABLED, /** * See header */ -pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, chunk_t value) +pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, size_t length, + chunk_t value) { switch (type) { case IETF_ATTR_ATTRIBUTE_REQUEST: - return ietf_attr_attr_request_create_from_data(value); + return ietf_attr_attr_request_create_from_data(length, value); case IETF_ATTR_PRODUCT_INFORMATION: - return ietf_attr_product_info_create_from_data(value); + return ietf_attr_product_info_create_from_data(length, value); case IETF_ATTR_NUMERIC_VERSION: - return ietf_attr_numeric_version_create_from_data(value); + return ietf_attr_numeric_version_create_from_data(length, value); case IETF_ATTR_STRING_VERSION: - return ietf_attr_string_version_create_from_data(value); + return ietf_attr_string_version_create_from_data(length, value); case IETF_ATTR_OPERATIONAL_STATUS: - return ietf_attr_op_status_create_from_data(value); + return ietf_attr_op_status_create_from_data(length, value); case IETF_ATTR_PORT_FILTER: - return ietf_attr_port_filter_create_from_data(value); + return ietf_attr_port_filter_create_from_data(length, value); case IETF_ATTR_INSTALLED_PACKAGES: - return ietf_attr_installed_packages_create_from_data(value); + return ietf_attr_installed_packages_create_from_data(length, value); case IETF_ATTR_PA_TNC_ERROR: - return ietf_attr_pa_tnc_error_create_from_data(value); + return ietf_attr_pa_tnc_error_create_from_data(length, value); case IETF_ATTR_ASSESSMENT_RESULT: - return ietf_attr_assess_result_create_from_data(value); + return ietf_attr_assess_result_create_from_data(length, value); case IETF_ATTR_REMEDIATION_INSTRUCTIONS: - return ietf_attr_remediation_instr_create_from_data(value); + return ietf_attr_remediation_instr_create_from_data(length, value); case IETF_ATTR_FORWARDING_ENABLED: - return ietf_attr_fwd_enabled_create_from_data(value); + return ietf_attr_fwd_enabled_create_from_data(length, value); case IETF_ATTR_FACTORY_DEFAULT_PWD_ENABLED: - return ietf_attr_default_pwd_enabled_create_from_data(value); + return ietf_attr_default_pwd_enabled_create_from_data(length, value); case IETF_ATTR_TESTING: case IETF_ATTR_RESERVED: default: diff --git a/src/libimcv/ietf/ietf_attr.h b/src/libimcv/ietf/ietf_attr.h index d22175d94..169ed78e8 100644 --- a/src/libimcv/ietf/ietf_attr.h +++ b/src/libimcv/ietf/ietf_attr.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -56,8 +56,10 @@ extern enum_name_t *ietf_attr_names; * Create an IETF PA-TNC attribute from data * * @param type attribute type - * @param value attribute value + * @param length attribute length + * @param value attribute value or segment */ -pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, chunk_t value); +pa_tnc_attr_t* ietf_attr_create_from_data(u_int32_t type, size_t length, + chunk_t value); #endif /** IETF_ATTR_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_assess_result.c b/src/libimcv/ietf/ietf_attr_assess_result.c index 55226e3bb..1cffdcaae 100644 --- a/src/libimcv/ietf/ietf_attr_assess_result.c +++ b/src/libimcv/ietf/ietf_attr_assess_result.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -50,7 +50,12 @@ struct private_ietf_attr_assess_result_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -107,6 +112,7 @@ METHOD(pa_tnc_attr_t, build, void, writer = bio_writer_create(ASSESS_RESULT_SIZE); writer->write_uint32(writer, this->result); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -115,10 +121,15 @@ METHOD(pa_tnc_attr_t, process, status_t, { bio_reader_t *reader; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < ASSESS_RESULT_SIZE) { DBG1(DBG_TNC, "insufficient data for IETF assessment result"); - *offset = 0; return FAILED; } reader = bio_reader_create(this->value); @@ -128,6 +139,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_assess_result_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_assess_result_t *this) { @@ -167,6 +184,7 @@ pa_tnc_attr_t *ietf_attr_assess_result_create(u_int32_t result) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -183,7 +201,8 @@ pa_tnc_attr_t *ietf_attr_assess_result_create(u_int32_t result) /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_assess_result_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_assess_result_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_assess_result_t *this; @@ -196,12 +215,14 @@ pa_tnc_attr_t *ietf_attr_assess_result_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_result = _get_result, }, .type = { PEN_IETF, IETF_ATTR_ASSESSMENT_RESULT }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_assess_result.h b/src/libimcv/ietf/ietf_attr_assess_result.h index e94b57b88..b1a5166dc 100644 --- a/src/libimcv/ietf/ietf_attr_assess_result.h +++ b/src/libimcv/ietf/ietf_attr_assess_result.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -56,8 +56,10 @@ pa_tnc_attr_t* ietf_attr_assess_result_create(u_int32_t result); /** * Creates an ietf_attr_assess_result_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_assess_result_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_assess_result_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_ASSESS_RESULT_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_attr_request.c b/src/libimcv/ietf/ietf_attr_attr_request.c index 3b4fd26cd..3862a0aa8 100644 --- a/src/libimcv/ietf/ietf_attr_attr_request.c +++ b/src/libimcv/ietf/ietf_attr_attr_request.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -59,7 +59,12 @@ struct private_ietf_attr_attr_request_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -126,6 +131,7 @@ METHOD(pa_tnc_attr_t, build, void, enumerator->destroy(enumerator); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -150,11 +156,17 @@ METHOD(pa_tnc_attr_t, process, status_t, u_int8_t reserved; int count; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + count = this->value.len / ATTR_REQUEST_ENTRY_SIZE; if (this->value.len != ATTR_REQUEST_ENTRY_SIZE * count) { DBG1(DBG_TNC, "incorrect attribute length for IETF attribute request"); - *offset = 0; return FAILED; } @@ -184,6 +196,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_attr_request_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_attr_request_t *this) { @@ -224,6 +242,7 @@ pa_tnc_attr_t *ietf_attr_attr_request_create(pen_t vendor_id, u_int32_t type) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -246,7 +265,8 @@ pa_tnc_attr_t *ietf_attr_attr_request_create(pen_t vendor_id, u_int32_t type) /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_attr_request_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_attr_request_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_attr_request_t *this; @@ -259,6 +279,7 @@ pa_tnc_attr_t *ietf_attr_attr_request_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -266,6 +287,7 @@ pa_tnc_attr_t *ietf_attr_attr_request_create_from_data(chunk_t data) .create_enumerator = _create_enumerator, }, .type = { PEN_IETF, IETF_ATTR_ATTRIBUTE_REQUEST }, + .length = length, .value = chunk_clone(data), .list = linked_list_create(), .ref = 1, diff --git a/src/libimcv/ietf/ietf_attr_attr_request.h b/src/libimcv/ietf/ietf_attr_attr_request.h index fc9e08676..47b038605 100644 --- a/src/libimcv/ietf/ietf_attr_attr_request.h +++ b/src/libimcv/ietf/ietf_attr_attr_request.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -62,10 +62,10 @@ struct ietf_attr_attr_request_t { pa_tnc_attr_t* ietf_attr_attr_request_create(pen_t vendor_id, u_int32_t type); /** - * Creates an ietf_attr_attr_request_t object from received data - * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_attr_request_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_attr_request_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_ATTR_REQUEST_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_default_pwd_enabled.c b/src/libimcv/ietf/ietf_attr_default_pwd_enabled.c index 2c6b3d542..ee5864d29 100644 --- a/src/libimcv/ietf/ietf_attr_default_pwd_enabled.c +++ b/src/libimcv/ietf/ietf_attr_default_pwd_enabled.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -50,7 +50,12 @@ struct private_ietf_attr_default_pwd_enabled_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -107,6 +112,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_uint32(writer, this->status); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -118,6 +124,10 @@ METHOD(pa_tnc_attr_t, process, status_t, *offset = 0; + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len != DEFAULT_PWD_ENABLED_SIZE) { DBG1(DBG_TNC, "incorrect size for IETF factory default password " @@ -139,6 +149,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_default_pwd_enabled_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_default_pwd_enabled_t *this) { @@ -178,6 +194,7 @@ pa_tnc_attr_t *ietf_attr_default_pwd_enabled_create(bool status) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -194,7 +211,8 @@ pa_tnc_attr_t *ietf_attr_default_pwd_enabled_create(bool status) /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_default_pwd_enabled_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_default_pwd_enabled_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_default_pwd_enabled_t *this; @@ -207,12 +225,14 @@ pa_tnc_attr_t *ietf_attr_default_pwd_enabled_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_status = _get_status, }, .type = { PEN_IETF, IETF_ATTR_FACTORY_DEFAULT_PWD_ENABLED }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_default_pwd_enabled.h b/src/libimcv/ietf/ietf_attr_default_pwd_enabled.h index 6fe1a02b1..3999590d4 100644 --- a/src/libimcv/ietf/ietf_attr_default_pwd_enabled.h +++ b/src/libimcv/ietf/ietf_attr_default_pwd_enabled.h @@ -56,8 +56,10 @@ pa_tnc_attr_t* ietf_attr_default_pwd_enabled_create(bool status); /** * Creates an ietf_attr_default_pwd_enabled_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_default_pwd_enabled_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_default_pwd_enabled_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_PWD_ENABLED_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_fwd_enabled.c b/src/libimcv/ietf/ietf_attr_fwd_enabled.c index a906b2258..c00a5efc2 100644 --- a/src/libimcv/ietf/ietf_attr_fwd_enabled.c +++ b/src/libimcv/ietf/ietf_attr_fwd_enabled.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -50,7 +50,12 @@ struct private_ietf_attr_fwd_enabled_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -107,6 +112,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_uint32(writer, this->fwd_status); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -118,6 +124,10 @@ METHOD(pa_tnc_attr_t, process, status_t, *offset = 0; + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len != FORWARDING_ENABLED_SIZE) { DBG1(DBG_TNC, "incorrect size for IETF forwarding enabled attribute"); @@ -138,6 +148,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_fwd_enabled_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_fwd_enabled_t *this) { @@ -177,6 +193,7 @@ pa_tnc_attr_t *ietf_attr_fwd_enabled_create(os_fwd_status_t fwd_status) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -193,7 +210,8 @@ pa_tnc_attr_t *ietf_attr_fwd_enabled_create(os_fwd_status_t fwd_status) /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_fwd_enabled_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_fwd_enabled_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_fwd_enabled_t *this; @@ -206,12 +224,14 @@ pa_tnc_attr_t *ietf_attr_fwd_enabled_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_status = _get_status, }, .type = { PEN_IETF, IETF_ATTR_FORWARDING_ENABLED }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_fwd_enabled.h b/src/libimcv/ietf/ietf_attr_fwd_enabled.h index 41714380e..c4b6c1547 100644 --- a/src/libimcv/ietf/ietf_attr_fwd_enabled.h +++ b/src/libimcv/ietf/ietf_attr_fwd_enabled.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-14 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -57,8 +57,10 @@ pa_tnc_attr_t* ietf_attr_fwd_enabled_create(os_fwd_status_t fwd_status); /** * Creates an ietf_attr_fwd_enabled_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_fwd_enabled_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_fwd_enabled_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_FWD_ENABLED_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_installed_packages.c b/src/libimcv/ietf/ietf_attr_installed_packages.c index f33f643af..39eea555a 100644 --- a/src/libimcv/ietf/ietf_attr_installed_packages.c +++ b/src/libimcv/ietf/ietf_attr_installed_packages.c @@ -57,16 +57,36 @@ struct private_ietf_attr_installed_packages_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Offset up to which attribute value has been processed + */ + size_t offset; + + /** + * Current position of attribute value pointer */ chunk_t value; /** + * Contains complete attribute or current segment + */ + chunk_t segment; + + /** * Noskip flag */ bool noskip_flag; /** + * Number of Installed Packages in attribute + */ + uint16_t count; + + /** * List of Installed Package entries */ linked_list_t *packages; @@ -143,6 +163,8 @@ METHOD(pa_tnc_attr_t, build, void, enumerator->destroy(enumerator); this->value = writer->extract_buf(writer); + this->segment = this->value; + this->length = this->value.len; writer->destroy(writer); } @@ -151,72 +173,91 @@ METHOD(pa_tnc_attr_t, process, status_t, { bio_reader_t *reader; package_entry_t *entry; - status_t status = FAILED; + status_t status = NEED_MORE; chunk_t name, version; - u_int16_t reserved, count; + u_int16_t reserved; u_char *pos; - *offset = 0; - - if (this->value.len < IETF_INSTALLED_PACKAGES_MIN_SIZE) - { - DBG1(DBG_TNC, "insufficient data for IETF installed packages"); - return FAILED; + if (this->offset == 0) + { + if (this->length < IETF_INSTALLED_PACKAGES_MIN_SIZE) + { + DBG1(DBG_TNC, "insufficient data for %N/%N", pen_names, PEN_IETF, + ietf_attr_names, this->type.type); + *offset = this->offset; + return FAILED; + } + if (this->value.len < IETF_INSTALLED_PACKAGES_MIN_SIZE) + { + return NEED_MORE; + } + reader = bio_reader_create(this->value); + reader->read_uint16(reader, &reserved); + reader->read_uint16(reader, &this->count); + this->offset = IETF_INSTALLED_PACKAGES_MIN_SIZE; + this->value = reader->peek(reader); + reader->destroy(reader); } + reader = bio_reader_create(this->value); - reader->read_uint16(reader, &reserved); - reader->read_uint16(reader, &count); - *offset = IETF_INSTALLED_PACKAGES_MIN_SIZE; - while (reader->remaining(reader)) + while (this->count) { - if (!reader->read_data8(reader, &name)) + if (!reader->read_data8(reader, &name) || + !reader->read_data8(reader, &version)) { - DBG1(DBG_TNC, "insufficient data for IETF installed package name"); goto end; } pos = memchr(name.ptr, '\0', name.len); if (pos) { DBG1(DBG_TNC, "nul termination in IETF installed package name"); - *offset += 1 + (pos - name.ptr); - goto end; - } - *offset += 1 + name.len; - - if (!reader->read_data8(reader, &version)) - { - DBG1(DBG_TNC, "insufficient data for IETF installed package version"); + *offset = this->offset + 1 + (pos - name.ptr); + status = FAILED; goto end; } pos = memchr(version.ptr, '\0', version.len); if (pos) { DBG1(DBG_TNC, "nul termination in IETF installed package version"); - *offset += 1 + (pos - version.ptr); + *offset = this->offset + 1 + name.len + 1 + (pos - version.ptr); + status = FAILED; goto end; } - *offset += 1 + version.len; + this->offset += this->value.len - reader->remaining(reader); + this->value = reader->peek(reader); entry = malloc_thing(package_entry_t); entry->name = chunk_clone(name); entry->version = chunk_clone(version); this->packages->insert_last(this->packages, entry); + + /* at least one tag ID was processed */ + status = SUCCESS; + this->count--; } - if (count != this->packages->get_count(this->packages)) + if (this->length != this->offset) { - DBG1(DBG_TNC, "IETF installed package count unequal to " - "number of included packages"); - goto end; + DBG1(DBG_TNC, "inconsistent length for %N/%N", pen_names, PEN_IETF, + ietf_attr_names, this->type.type); + *offset = this->offset; + status = FAILED; } - status = SUCCESS; end: reader->destroy(reader); return status; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_installed_packages_t *this, chunk_t segment) +{ + this->value = chunk_cat("cc", this->value, segment); + chunk_free(&this->segment); + this->segment = this->value; +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_installed_packages_t *this) { @@ -230,7 +271,7 @@ METHOD(pa_tnc_attr_t, destroy, void, if (ref_put(&this->ref)) { this->packages->destroy_function(this->packages, (void*)free_package_entry); - free(this->value.ptr); + free(this->segment.ptr); free(this); } } @@ -269,6 +310,23 @@ METHOD(ietf_attr_installed_packages_t, create_enumerator, enumerator_t*, (void*)package_filter, NULL, NULL); } +METHOD(ietf_attr_installed_packages_t, get_count, uint16_t, + private_ietf_attr_installed_packages_t *this) +{ + return this->count; +} + +METHOD(ietf_attr_installed_packages_t, clear_packages, void, + private_ietf_attr_installed_packages_t *this) +{ + package_entry_t *entry; + + while (this->packages->remove_first(this->packages,(void**)&entry) == SUCCESS) + { + free_package_entry(entry); + } +} + /** * Described in header. */ @@ -285,11 +343,14 @@ pa_tnc_attr_t *ietf_attr_installed_packages_create(void) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .add = _add, .create_enumerator = _create_enumerator, + .get_count = _get_count, + .clear_packages = _clear_packages, }, .type = { PEN_IETF, IETF_ATTR_INSTALLED_PACKAGES }, .packages = linked_list_create(), @@ -300,9 +361,11 @@ pa_tnc_attr_t *ietf_attr_installed_packages_create(void) } /** - * Described in header. + * Described in header. .length = length, + */ -pa_tnc_attr_t *ietf_attr_installed_packages_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_installed_packages_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_installed_packages_t *this; @@ -315,18 +378,25 @@ pa_tnc_attr_t *ietf_attr_installed_packages_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .add = _add, .create_enumerator = _create_enumerator, + .get_count = _get_count, + .clear_packages = _clear_packages, }, .type = {PEN_IETF, IETF_ATTR_INSTALLED_PACKAGES }, - .value = chunk_clone(data), + .length = length, + .segment = chunk_clone(data), .packages = linked_list_create(), .ref = 1, ); + /* received either complete attribute value or first segment */ + this->value = this->segment; + return &this->public.pa_tnc_attribute; } diff --git a/src/libimcv/ietf/ietf_attr_installed_packages.h b/src/libimcv/ietf/ietf_attr_installed_packages.h index e19d0f47b..9f7b7cbcf 100644 --- a/src/libimcv/ietf/ietf_attr_installed_packages.h +++ b/src/libimcv/ietf/ietf_attr_installed_packages.h @@ -56,6 +56,18 @@ struct ietf_attr_installed_packages_t { */ enumerator_t* (*create_enumerator)(ietf_attr_installed_packages_t *this); + /** + * Number of Installed Packages still missing + * + * @return Number of missing installed packages + */ + uint16_t (*get_count)(ietf_attr_installed_packages_t *this); + + /** + * Remove all Installed Packages from list + */ + void (*clear_packages)(ietf_attr_installed_packages_t *this); + }; /** @@ -67,8 +79,10 @@ pa_tnc_attr_t* ietf_attr_installed_packages_create(void); /** * Creates an ietf_attr_installed_packages_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_installed_packages_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_installed_packages_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_INSTALLED_PACKAGES_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_numeric_version.c b/src/libimcv/ietf/ietf_attr_numeric_version.c index 739256457..c8fd6c1ca 100644 --- a/src/libimcv/ietf/ietf_attr_numeric_version.c +++ b/src/libimcv/ietf/ietf_attr_numeric_version.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -56,7 +56,12 @@ struct private_ietf_attr_numeric_version_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -138,6 +143,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_uint16(writer, this->service_pack_minor); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -146,10 +152,15 @@ METHOD(pa_tnc_attr_t, process, status_t, { bio_reader_t *reader; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < NUMERIC_VERSION_SIZE) { DBG1(DBG_TNC, "insufficient data for IETF numeric version"); - *offset = 0; return FAILED; } reader = bio_reader_create(this->value); @@ -163,6 +174,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_numeric_version_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_numeric_version_t *this) { @@ -231,6 +248,7 @@ pa_tnc_attr_t *ietf_attr_numeric_version_create(u_int32_t major, u_int32_t minor .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -253,7 +271,8 @@ pa_tnc_attr_t *ietf_attr_numeric_version_create(u_int32_t major, u_int32_t minor /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_numeric_version_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_numeric_version_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_numeric_version_t *this; @@ -266,6 +285,7 @@ pa_tnc_attr_t *ietf_attr_numeric_version_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -274,6 +294,7 @@ pa_tnc_attr_t *ietf_attr_numeric_version_create_from_data(chunk_t data) .get_service_pack = _get_service_pack, }, .type = { PEN_IETF, IETF_ATTR_NUMERIC_VERSION }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_numeric_version.h b/src/libimcv/ietf/ietf_attr_numeric_version.h index bbda6b895..34393c673 100644 --- a/src/libimcv/ietf/ietf_attr_numeric_version.h +++ b/src/libimcv/ietf/ietf_attr_numeric_version.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-14 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -77,8 +77,10 @@ pa_tnc_attr_t* ietf_attr_numeric_version_create(u_int32_t major, u_int32_t minor /** * Creates an ietf_attr_numeric_version_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_numeric_version_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_numeric_version_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_NUMERIC_VERSION_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_op_status.c b/src/libimcv/ietf/ietf_attr_op_status.c index 23530684a..d061a52f9 100644 --- a/src/libimcv/ietf/ietf_attr_op_status.c +++ b/src/libimcv/ietf/ietf_attr_op_status.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -76,7 +76,12 @@ struct private_ietf_attr_op_status_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -154,6 +159,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_data (writer, chunk_create(last_use, 20)); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -167,6 +173,10 @@ METHOD(pa_tnc_attr_t, process, status_t, *offset = 0; + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len != OP_STATUS_SIZE) { DBG1(DBG_TNC, "incorrect size for IETF operational status"); @@ -212,6 +222,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_op_status_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_op_status_t *this) { @@ -264,6 +280,7 @@ pa_tnc_attr_t *ietf_attr_op_status_create(u_int8_t status, u_int8_t result, .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -284,7 +301,7 @@ pa_tnc_attr_t *ietf_attr_op_status_create(u_int8_t status, u_int8_t result, /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_op_status_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_op_status_create_from_data(size_t length, chunk_t data) { private_ietf_attr_op_status_t *this; @@ -297,6 +314,7 @@ pa_tnc_attr_t *ietf_attr_op_status_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, diff --git a/src/libimcv/ietf/ietf_attr_op_status.h b/src/libimcv/ietf/ietf_attr_op_status.h index b70fab608..f19185f0a 100644 --- a/src/libimcv/ietf/ietf_attr_op_status.h +++ b/src/libimcv/ietf/ietf_attr_op_status.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-14 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -100,8 +100,10 @@ pa_tnc_attr_t* ietf_attr_op_status_create(u_int8_t status, u_int8_t result, /** * Creates an ietf_attr_op_status_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_op_status_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_op_status_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_OP_STATUS_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_pa_tnc_error.c b/src/libimcv/ietf/ietf_attr_pa_tnc_error.c index 5f20f8958..0dbb4aaef 100644 --- a/src/libimcv/ietf/ietf_attr_pa_tnc_error.c +++ b/src/libimcv/ietf/ietf_attr_pa_tnc_error.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -113,7 +113,12 @@ struct private_ietf_attr_pa_tnc_error_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -133,14 +138,19 @@ struct private_ietf_attr_pa_tnc_error_t { chunk_t msg_info; /** - * First 8 bytes of unsupported PA-TNC attribute + * Flags of unsupported PA-TNC attribute + */ + uint8_t flags; + + /** + * Vendor ID and type of unsupported PA-TNC attribute */ - chunk_t attr_info; + pen_type_t unsupported_type; /** * PA-TNC error offset */ - u_int32_t error_offset; + uint32_t error_offset; /** * Reference count @@ -200,26 +210,35 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_uint16(writer, PA_ERROR_VERSION_RESERVED); break; case PA_ERROR_ATTR_TYPE_NOT_SUPPORTED: - writer->write_data(writer, this->attr_info); + writer->write_uint8 (writer, this->flags); + writer->write_uint24(writer, this->unsupported_type.vendor_id); + writer->write_uint32(writer, this->unsupported_type.type); break; default: break; } } this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } METHOD(pa_tnc_attr_t, process, status_t, - private_ietf_attr_pa_tnc_error_t *this, u_int32_t *offset) + private_ietf_attr_pa_tnc_error_t *this, uint32_t *offset) { bio_reader_t *reader; - u_int8_t reserved; + uint8_t reserved; + uint32_t vendor_id, type; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < PA_ERROR_HEADER_SIZE) { DBG1(DBG_TNC, "insufficient data for PA-TNC error header"); - *offset = 0; return FAILED; } reader = bio_reader_create(this->value); @@ -250,8 +269,7 @@ METHOD(pa_tnc_attr_t, process, status_t, } break; case PA_ERROR_ATTR_TYPE_NOT_SUPPORTED: - if (!reader->read_data(reader, PA_ERROR_ATTR_INFO_SIZE, - &this->attr_info)) + if (reader->remaining(reader) < PA_ERROR_ATTR_INFO_SIZE) { reader->destroy(reader); DBG1(DBG_TNC, "insufficient data for unsupported attribute " @@ -259,7 +277,10 @@ METHOD(pa_tnc_attr_t, process, status_t, *offset = PA_ERROR_HEADER_SIZE + PA_ERROR_MSG_INFO_SIZE; return FAILED; } - this->attr_info = chunk_clone(this->attr_info); + reader->read_uint8 (reader, &this->flags); + reader->read_uint24(reader, &vendor_id); + reader->read_uint32(reader, &type); + this->unsupported_type = pen_type_create(vendor_id, type); break; default: break; @@ -275,6 +296,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_pa_tnc_error_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_pa_tnc_error_t *this) { @@ -289,7 +316,6 @@ METHOD(pa_tnc_attr_t, destroy, void, { free(this->value.ptr); free(this->msg_info.ptr); - free(this->attr_info.ptr); free(this); } } @@ -306,19 +332,24 @@ METHOD(ietf_attr_pa_tnc_error_t, get_msg_info, chunk_t, return this->msg_info; } -METHOD(ietf_attr_pa_tnc_error_t, get_attr_info, chunk_t, - private_ietf_attr_pa_tnc_error_t *this) +METHOD(ietf_attr_pa_tnc_error_t, get_unsupported_attr, pen_type_t, + private_ietf_attr_pa_tnc_error_t *this, uint8_t *flags) { - return this->attr_info; + if (flags) + { + *flags = this->flags; + } + return this->unsupported_type; } -METHOD(ietf_attr_pa_tnc_error_t, set_attr_info, void, - private_ietf_attr_pa_tnc_error_t *this, chunk_t attr_info) +METHOD(ietf_attr_pa_tnc_error_t, set_unsupported_attr, void, + private_ietf_attr_pa_tnc_error_t *this, uint8_t flags, pen_type_t type) { - this->attr_info = chunk_clone(attr_info); + this->flags = flags; + this->unsupported_type = type; } -METHOD(ietf_attr_pa_tnc_error_t, get_offset, u_int32_t, +METHOD(ietf_attr_pa_tnc_error_t, get_offset, uint32_t, private_ietf_attr_pa_tnc_error_t *this) { return this->error_offset; @@ -340,13 +371,14 @@ static private_ietf_attr_pa_tnc_error_t* create_generic() .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_error_code = _get_error_code, .get_msg_info = _get_msg_info, - .get_attr_info = _get_attr_info, - .set_attr_info = _set_attr_info, + .get_unsupported_attr = _get_unsupported_attr, + .set_unsupported_attr = _set_unsupported_attr, .get_offset = _get_offset, }, .type = { PEN_IETF, IETF_ATTR_PA_TNC_ERROR }, @@ -385,7 +417,7 @@ pa_tnc_attr_t *ietf_attr_pa_tnc_error_create(pen_type_t error_code, */ pa_tnc_attr_t *ietf_attr_pa_tnc_error_create_with_offset(pen_type_t error_code, chunk_t msg_info, - u_int32_t error_offset) + uint32_t error_offset) { private_ietf_attr_pa_tnc_error_t *this; @@ -403,11 +435,13 @@ pa_tnc_attr_t *ietf_attr_pa_tnc_error_create_with_offset(pen_type_t error_code, /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_pa_tnc_error_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_pa_tnc_error_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_pa_tnc_error_t *this; this = create_generic(); + this->length = length; this->value = chunk_clone(data); return &this->public.pa_tnc_attribute; diff --git a/src/libimcv/ietf/ietf_attr_pa_tnc_error.h b/src/libimcv/ietf/ietf_attr_pa_tnc_error.h index faa38f8f9..b1df1945a 100644 --- a/src/libimcv/ietf/ietf_attr_pa_tnc_error.h +++ b/src/libimcv/ietf/ietf_attr_pa_tnc_error.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -69,25 +69,29 @@ struct ietf_attr_pa_tnc_error_t { chunk_t (*get_msg_info)(ietf_attr_pa_tnc_error_t *this); /** - * Get first 8 bytes of unsupported PA-TNC attribute + * Get flags, vendor ID and type of unsupported PA-TNC attribute * - * @return PA-TNC attribute info + * @param flags PA-TNC attribute flags + * @return PA-TNC attribute vendor ID and type */ - chunk_t (*get_attr_info)(ietf_attr_pa_tnc_error_t *this); + pen_type_t (*get_unsupported_attr)(ietf_attr_pa_tnc_error_t *this, + uint8_t *flags); /** - * Set first 8 bytes of unsupported PA-TNC attribute + * Set flags, vendor ID and type of unsupported PA-TNC attribute * - * @param attr_info PA-TNC message info + * @param flags PA-TNC attribute flags + * @param attr_info PA-TNC attribute vendor ID and type */ - void (*set_attr_info)(ietf_attr_pa_tnc_error_t *this, chunk_t attr_info); + void (*set_unsupported_attr)(ietf_attr_pa_tnc_error_t *this, uint8_t flags, + pen_type_t type); /** * Get the PA-TNC error offset * * @return PA-TNC error offset */ - u_int32_t (*get_offset)(ietf_attr_pa_tnc_error_t *this); + uint32_t (*get_offset)(ietf_attr_pa_tnc_error_t *this); }; @@ -111,13 +115,15 @@ pa_tnc_attr_t* ietf_attr_pa_tnc_error_create(pen_type_t error_code, */ pa_tnc_attr_t* ietf_attr_pa_tnc_error_create_with_offset(pen_type_t error_code, chunk_t header, - u_int32_t error_offset); + uint32_t error_offset); /** * Creates an ietf_attr_pa_tnc_error_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_pa_tnc_error_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_pa_tnc_error_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_PA_TNC_ERROR_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_port_filter.c b/src/libimcv/ietf/ietf_attr_port_filter.c index 1d516a51f..46824406a 100644 --- a/src/libimcv/ietf/ietf_attr_port_filter.c +++ b/src/libimcv/ietf/ietf_attr_port_filter.c @@ -1,5 +1,6 @@ /* - * Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -63,7 +64,12 @@ struct private_ietf_attr_port_filter_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -131,6 +137,7 @@ METHOD(pa_tnc_attr_t, build, void, enumerator->destroy(enumerator); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -141,11 +148,16 @@ METHOD(pa_tnc_attr_t, process, status_t, port_entry_t *entry; u_int8_t blocked; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len % PORT_FILTER_ENTRY_SIZE) { DBG1(DBG_TNC, "ietf port filter attribute value is not a multiple of %d", PORT_FILTER_ENTRY_SIZE); - *offset = 0; return FAILED; } reader = bio_reader_create(this->value); @@ -164,6 +176,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_port_filter_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_port_filter_t *this) { @@ -231,6 +249,7 @@ pa_tnc_attr_t *ietf_attr_port_filter_create(void) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -248,7 +267,8 @@ pa_tnc_attr_t *ietf_attr_port_filter_create(void) /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_port_filter_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_port_filter_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_port_filter_t *this; @@ -261,6 +281,7 @@ pa_tnc_attr_t *ietf_attr_port_filter_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -268,6 +289,7 @@ pa_tnc_attr_t *ietf_attr_port_filter_create_from_data(chunk_t data) .create_port_enumerator = _create_port_enumerator, }, .type = {PEN_IETF, IETF_ATTR_PORT_FILTER }, + .length = length, .value = chunk_clone(data), .ports = linked_list_create(), .ref = 1, diff --git a/src/libimcv/ietf/ietf_attr_port_filter.h b/src/libimcv/ietf/ietf_attr_port_filter.h index 93b696e45..d383b19a2 100644 --- a/src/libimcv/ietf/ietf_attr_port_filter.h +++ b/src/libimcv/ietf/ietf_attr_port_filter.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -67,8 +67,10 @@ pa_tnc_attr_t* ietf_attr_port_filter_create(void); /** * Creates an ietf_attr_port_filter_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_port_filter_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_port_filter_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_PORT_FILTER_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_product_info.c b/src/libimcv/ietf/ietf_attr_product_info.c index a107c27d3..37c89e9e5 100644 --- a/src/libimcv/ietf/ietf_attr_product_info.c +++ b/src/libimcv/ietf/ietf_attr_product_info.c @@ -1,5 +1,6 @@ /* - * Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -51,7 +52,12 @@ struct private_ietf_attr_product_info_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -120,6 +126,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_data (writer, this->product_name); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -129,10 +136,15 @@ METHOD(pa_tnc_attr_t, process, status_t, bio_reader_t *reader; chunk_t product_name; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < PRODUCT_INFO_MIN_SIZE) { DBG1(DBG_TNC, "insufficient data for IETF product information"); - *offset = 0; return FAILED; } reader = bio_reader_create(this->value); @@ -153,6 +165,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_product_info_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_product_info_t *this) { @@ -202,6 +220,7 @@ pa_tnc_attr_t *ietf_attr_product_info_create(pen_t vendor_id, u_int16_t id, .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -220,7 +239,8 @@ pa_tnc_attr_t *ietf_attr_product_info_create(pen_t vendor_id, u_int16_t id, /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_product_info_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_product_info_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_product_info_t *this; @@ -233,12 +253,14 @@ pa_tnc_attr_t *ietf_attr_product_info_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_info = _get_info, }, .type = { PEN_IETF, IETF_ATTR_PRODUCT_INFORMATION }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_product_info.h b/src/libimcv/ietf/ietf_attr_product_info.h index d0b2d2a84..5151b5808 100644 --- a/src/libimcv/ietf/ietf_attr_product_info.h +++ b/src/libimcv/ietf/ietf_attr_product_info.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -60,8 +60,10 @@ pa_tnc_attr_t* ietf_attr_product_info_create(pen_t vendor_id, u_int16_t id, /** * Creates an ietf_attr_product_info_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_product_info_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_product_info_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_PRODUCT_INFO_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_remediation_instr.c b/src/libimcv/ietf/ietf_attr_remediation_instr.c index 5d85e5d89..64070374e 100644 --- a/src/libimcv/ietf/ietf_attr_remediation_instr.c +++ b/src/libimcv/ietf/ietf_attr_remediation_instr.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -79,7 +79,12 @@ struct private_ietf_attr_remediation_instr_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -155,6 +160,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_data (writer, this->parameters); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -168,6 +174,10 @@ METHOD(pa_tnc_attr_t, process, status_t, *offset = 0; + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < REMEDIATION_INSTR_MIN_SIZE) { DBG1(DBG_TNC, "insufficient data for IETF remediation instructions"); @@ -218,6 +228,12 @@ end: return status; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_remediation_instr_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_remediation_instr_t *this) { @@ -275,6 +291,7 @@ pa_tnc_attr_t *ietf_attr_remediation_instr_create(pen_type_t parameters_type, .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -328,7 +345,8 @@ pa_tnc_attr_t *ietf_attr_remediation_instr_create_from_string(chunk_t string, /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_remediation_instr_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_remediation_instr_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_remediation_instr_t *this; @@ -341,6 +359,7 @@ pa_tnc_attr_t *ietf_attr_remediation_instr_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -350,6 +369,7 @@ pa_tnc_attr_t *ietf_attr_remediation_instr_create_from_data(chunk_t data) .get_string = _get_string, }, .type = { PEN_IETF, IETF_ATTR_REMEDIATION_INSTRUCTIONS }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_remediation_instr.h b/src/libimcv/ietf/ietf_attr_remediation_instr.h index 5c7c8891b..bc03e995a 100644 --- a/src/libimcv/ietf/ietf_attr_remediation_instr.h +++ b/src/libimcv/ietf/ietf_attr_remediation_instr.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -102,8 +102,10 @@ pa_tnc_attr_t* ietf_attr_remediation_instr_create_from_string(chunk_t string, /** * Creates an ietf_attr_remediation_instr_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_remediation_instr_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_remediation_instr_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_REMEDIATION_INSTR_H_ @}*/ diff --git a/src/libimcv/ietf/ietf_attr_string_version.c b/src/libimcv/ietf/ietf_attr_string_version.c index 68adde612..c46200b8f 100644 --- a/src/libimcv/ietf/ietf_attr_string_version.c +++ b/src/libimcv/ietf/ietf_attr_string_version.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -54,7 +54,12 @@ struct private_ietf_attr_string_version_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -124,6 +129,7 @@ METHOD(pa_tnc_attr_t, build, void, writer->write_data8(writer, this->config); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -137,6 +143,10 @@ METHOD(pa_tnc_attr_t, process, status_t, *offset = 0; + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < STRING_VERSION_MIN_SIZE) { DBG1(DBG_TNC, "insufficient data for IETF string version"); @@ -198,6 +208,12 @@ end: return status; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ietf_attr_string_version_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ietf_attr_string_version_t *this) { @@ -254,6 +270,7 @@ pa_tnc_attr_t *ietf_attr_string_version_create(chunk_t version, chunk_t build, .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -272,7 +289,8 @@ pa_tnc_attr_t *ietf_attr_string_version_create(chunk_t version, chunk_t build, /** * Described in header. */ -pa_tnc_attr_t *ietf_attr_string_version_create_from_data(chunk_t data) +pa_tnc_attr_t *ietf_attr_string_version_create_from_data(size_t length, + chunk_t data) { private_ietf_attr_string_version_t *this; @@ -285,12 +303,14 @@ pa_tnc_attr_t *ietf_attr_string_version_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_version = _get_version, }, .type = { PEN_IETF, IETF_ATTR_STRING_VERSION }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ietf/ietf_attr_string_version.h b/src/libimcv/ietf/ietf_attr_string_version.h index 9ccc1f0ee..432ed4a0f 100644 --- a/src/libimcv/ietf/ietf_attr_string_version.h +++ b/src/libimcv/ietf/ietf_attr_string_version.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -60,8 +60,10 @@ pa_tnc_attr_t* ietf_attr_string_version_create(chunk_t version, chunk_t build, /** * Creates an ietf_attr_string_version_t object from received data * - * @param value unparsed attribute value + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ietf_attr_string_version_create_from_data(chunk_t value); +pa_tnc_attr_t* ietf_attr_string_version_create_from_data(size_t length, + chunk_t value); #endif /** IETF_ATTR_STRING_VERSION_H_ @}*/ diff --git a/src/libimcv/imc/imc_agent.c b/src/libimcv/imc/imc_agent.c index 533151799..0d622f1b8 100644 --- a/src/libimcv/imc/imc_agent.c +++ b/src/libimcv/imc/imc_agent.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -59,6 +59,11 @@ struct private_imc_agent_t { linked_list_t *additional_ids; /** + * list of non-fatal unsupported PA-TNC attribute types + */ + linked_list_t *non_fatal_attr_types; + + /** * list of TNCC connection entries */ linked_list_t *connections; @@ -510,11 +515,29 @@ METHOD(imc_agent_t, create_id_enumerator, enumerator_t*, return this->additional_ids->create_enumerator(this->additional_ids); } +METHOD(imc_agent_t, add_non_fatal_attr_type, void, + private_imc_agent_t *this, pen_type_t type) +{ + pen_type_t *type_p; + + type_p = malloc_thing(pen_type_t); + *type_p = type; + this->non_fatal_attr_types->insert_last(this->non_fatal_attr_types, type_p); +} + +METHOD(imc_agent_t, get_non_fatal_attr_types, linked_list_t*, + private_imc_agent_t *this) +{ + return this->non_fatal_attr_types; +} + METHOD(imc_agent_t, destroy, void, private_imc_agent_t *this) { DBG1(DBG_IMC, "IMC %u \"%s\" terminated", this->id, this->name); this->additional_ids->destroy(this->additional_ids); + this->non_fatal_attr_types->destroy_function(this->non_fatal_attr_types, + free); this->connections->destroy_function(this->connections, free); this->connection_lock->destroy(this->connection_lock); free(this); @@ -550,6 +573,8 @@ imc_agent_t *imc_agent_create(const char *name, .reserve_additional_ids = _reserve_additional_ids, .count_additional_ids = _count_additional_ids, .create_id_enumerator = _create_id_enumerator, + .add_non_fatal_attr_type = _add_non_fatal_attr_type, + .get_non_fatal_attr_types = _get_non_fatal_attr_types, .destroy = _destroy, }, .name = name, @@ -557,6 +582,7 @@ imc_agent_t *imc_agent_create(const char *name, .type_count = type_count, .id = id, .additional_ids = linked_list_create(), + .non_fatal_attr_types = linked_list_create(), .connections = linked_list_create(), .connection_lock = rwlock_create(RWLOCK_TYPE_DEFAULT), ); diff --git a/src/libimcv/imc/imc_agent.h b/src/libimcv/imc/imc_agent.h index 0a1638f47..8bdfb6c32 100644 --- a/src/libimcv/imc/imc_agent.h +++ b/src/libimcv/imc/imc_agent.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -172,6 +172,16 @@ struct imc_agent_t { enumerator_t* (*create_id_enumerator)(imc_agent_t *this); /** + * Add an item to the list of non-fatal unsupported PA-TNC attribute types + */ + void (*add_non_fatal_attr_type)(imc_agent_t *this, pen_type_t type); + + /** + * Get a list of non-fatal unsupported PA-TNC attribute types + */ + linked_list_t* (*get_non_fatal_attr_types)(imc_agent_t *this); + + /** * Destroys an imc_agent_t object */ void (*destroy)(imc_agent_t *this); diff --git a/src/libimcv/imc/imc_msg.c b/src/libimcv/imc/imc_msg.c index 1cf81c730..83337cf7b 100644 --- a/src/libimcv/imc/imc_msg.c +++ b/src/libimcv/imc/imc_msg.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -18,8 +18,12 @@ #include "ietf/ietf_attr.h" #include "ietf/ietf_attr_assess_result.h" #include "ietf/ietf_attr_remediation_instr.h" +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" +#include "tcg/seg/tcg_seg_attr_next_seg.h" #include <tncif_names.h> +#include <tncif_pa_subtypes.h> #include <pen/pen.h> #include <collections/linked_list.h> @@ -104,11 +108,18 @@ METHOD(imc_msg_t, send_, TNC_Result, pa_tnc_attr_t *attr; TNC_UInt32 msg_flags; TNC_MessageType msg_type; - bool attr_added; + bool attr_added, oversize; chunk_t msg; + seg_contract_t *contract; + seg_contract_manager_t *contracts; enumerator_t *enumerator; TNC_Result result = TNC_RESULT_SUCCESS; + /* Get IF-M segmentation contract for this subtype if any */ + contracts = this->state->get_contracts(this->state); + contract = contracts->get_contract(contracts, this->msg_type, + FALSE, this->dst_id); + while (this->attr_list->get_count(this->attr_list)) { pa_tnc_msg = pa_tnc_msg_create(this->state->get_max_msg_len(this->state)); @@ -117,6 +128,17 @@ METHOD(imc_msg_t, send_, TNC_Result, enumerator = this->attr_list->create_enumerator(this->attr_list); while (enumerator->enumerate(enumerator, &attr)) { + if (contract && contract->check_size(contract, attr, &oversize)) + { + if (oversize) + { + /* TODO generate SWID error msg */ + } + else + { + attr = contract->first_segment(contract, attr); + } + } if (pa_tnc_msg->add_attribute(pa_tnc_msg, attr)) { attr_added = TRUE; @@ -208,8 +230,9 @@ static void print_assessment_trailer(bool first) } METHOD(imc_msg_t, receive, TNC_Result, - private_imc_msg_t *this, bool *fatal_error) + private_imc_msg_t *this, imc_msg_t *out_msg, bool *fatal_error) { + linked_list_t *non_fatal_types; TNC_UInt32 target_imc_id; enumerator_t *enumerator; pa_tnc_attr_t *attr; @@ -251,26 +274,14 @@ METHOD(imc_msg_t, receive, TNC_Result, break; case VERIFY_ERROR: { - imc_msg_t *error_msg; - TNC_Result result; - - error_msg = imc_msg_create_as_reply(&this->public); - /* extract and copy by reference all error attributes */ enumerator = this->pa_msg->create_error_enumerator(this->pa_msg); while (enumerator->enumerate(enumerator, &attr)) { - error_msg->add_attribute(error_msg, attr->get_ref(attr)); + out_msg->add_attribute(out_msg, attr->get_ref(attr)); } enumerator->destroy(enumerator); - - /* - * send the PA-TNC message containing all error attributes - * with the excl flag set - */ - result = error_msg->send(error_msg, TRUE); - error_msg->destroy(error_msg); - return result; + return TNC_RESULT_SUCCESS; } case FAILED: default: @@ -281,8 +292,192 @@ METHOD(imc_msg_t, receive, TNC_Result, target_imc_id = (this->dst_id != TNC_IMCID_ANY) ? this->dst_id : this->agent->get_id(this->agent); + /* process any IF-M segmentation contracts */ + enumerator = this->pa_msg->create_attribute_enumerator(this->pa_msg); + while (enumerator->enumerate(enumerator, &attr)) + { + uint32_t max_attr_size, max_seg_size, my_max_attr_size, my_max_seg_size; + seg_contract_t *contract; + seg_contract_manager_t *contracts; + char buf[BUF_LEN]; + pen_type_t type; + + type = attr->get_type(attr); + + contracts = this->state->get_contracts(this->state); + + if (type.vendor_id != PEN_TCG) + { + continue; + } + + switch (type.type) + { + case TCG_SEG_MAX_ATTR_SIZE_REQ: + { + tcg_seg_attr_max_size_t *attr_cast; + + attr_cast = (tcg_seg_attr_max_size_t*)attr; + attr_cast->get_attr_size(attr_cast, &max_attr_size, + &max_seg_size); + contract = contracts->get_contract(contracts, this->msg_type, + FALSE, this->src_id); + if (contract) + { + contract->set_max_size(contract, max_attr_size, + max_seg_size); + } + else + { + contract = seg_contract_create(this->msg_type, max_attr_size, + max_seg_size, FALSE, this->src_id, TRUE); + contract->set_responder(contract, target_imc_id); + contracts->add_contract(contracts, contract); + } + contract->get_info_string(contract, buf, BUF_LEN, TRUE); + DBG2(DBG_IMC, "%s", buf); + + /* Determine maximum PA-TNC attribute segment size */ + my_max_seg_size = this->state->get_max_msg_len(this->state) + - PA_TNC_HEADER_SIZE + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_SEG_ENV_HEADER + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_MAX_SIZE_SIZE; + + /* If segmentation is possible select lower segment size */ + if (max_seg_size != SEG_CONTRACT_NO_FRAGMENTATION && + max_seg_size > my_max_seg_size) + { + max_seg_size = my_max_seg_size; + contract->set_max_size(contract, max_attr_size, + max_seg_size); + DBG2(DBG_IMC, " lowered maximum segment size to %u bytes", + max_seg_size); + } + + /* Add Maximum Attribute Size Response attribute */ + attr = tcg_seg_attr_max_size_create(max_attr_size, + max_seg_size, FALSE); + out_msg->add_attribute(out_msg, attr); + break; + } + case TCG_SEG_MAX_ATTR_SIZE_RESP: + { + tcg_seg_attr_max_size_t *attr_cast; + + attr_cast = (tcg_seg_attr_max_size_t*)attr; + attr_cast->get_attr_size(attr_cast, &max_attr_size, + &max_seg_size); + contract = contracts->get_contract(contracts, this->msg_type, + TRUE, this->src_id); + if (!contract) + { + contract = contracts->get_contract(contracts, this->msg_type, + TRUE, TNC_IMCID_ANY); + if (contract) + { + contract = contract->clone(contract); + contract->set_responder(contract, this->src_id); + contracts->add_contract(contracts, contract); + } + } + if (contract) + { + contract->get_max_size(contract, &my_max_attr_size, + &my_max_seg_size); + if (my_max_seg_size != SEG_CONTRACT_NO_FRAGMENTATION && + my_max_seg_size > max_seg_size) + { + my_max_seg_size = max_seg_size; + contract->set_max_size(contract, my_max_attr_size, + my_max_seg_size); + } + contract->get_info_string(contract, buf, BUF_LEN, FALSE); + DBG2(DBG_IMC, "%s", buf); + } + else + { + /* TODO no request pending */ + DBG1(DBG_IMC, "no contract for this PA message type found"); + } + break; + } + case TCG_SEG_ATTR_SEG_ENV: + { + tcg_seg_attr_seg_env_t *seg_env_attr; + pa_tnc_attr_t *error; + uint32_t base_attr_id; + bool more; + + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + base_attr_id = seg_env_attr->get_base_attr_id(seg_env_attr); + + contract = contracts->get_contract(contracts, this->msg_type, + TRUE, this->src_id); + if (!contract) + { + DBG2(DBG_IMC, "no contract for received attribute segment " + "with base attribute ID %u", base_attr_id); + continue; + } + attr = contract->add_segment(contract, attr, &error, &more); + if (error) + { + out_msg->add_attribute(out_msg, error); + } + if (attr) + { + this->pa_msg->add_attribute(this->pa_msg, attr); + } + if (more) + { + /* Send Next Segment Request */ + attr = tcg_seg_attr_next_seg_create(base_attr_id, FALSE); + out_msg->add_attribute(out_msg, attr); + } + break; + } + case TCG_SEG_NEXT_SEG_REQ: + { + tcg_seg_attr_next_seg_t *attr_cast; + uint32_t base_attr_id; + + attr_cast = (tcg_seg_attr_next_seg_t*)attr; + base_attr_id = attr_cast->get_base_attr_id(attr_cast); + + contract = contracts->get_contract(contracts, this->msg_type, + FALSE, this->src_id); + if (!contract) + { + /* TODO no contract - generate error message */ + DBG1(DBG_IMC, "no contract for received next segment " + "request with base attribute ID %u", base_attr_id); + continue; + } + attr = contract->next_segment(contract, base_attr_id); + if (attr) + { + out_msg->add_attribute(out_msg, attr); + } + else + { + /* TODO no more segments - generate error message */ + DBG1(DBG_IMC, "no more segments found for " + "base attribute ID %u", base_attr_id); + } + break; + } + default: + break; + } + } + enumerator->destroy(enumerator); + /* preprocess any received IETF standard error attributes */ - *fatal_error = this->pa_msg->process_ietf_std_errors(this->pa_msg); + non_fatal_types = this->agent->get_non_fatal_attr_types(this->agent); + *fatal_error = this->pa_msg->process_ietf_std_errors(this->pa_msg, + non_fatal_types); /* preprocess any received IETF assessment result attribute */ enumerator = this->pa_msg->create_attribute_enumerator(this->pa_msg); @@ -297,16 +492,16 @@ METHOD(imc_msg_t, receive, TNC_Result, if (attr_type.type == IETF_ATTR_ASSESSMENT_RESULT) { ietf_attr_assess_result_t *attr_cast; - TNC_IMV_Evaluation_Result result; + TNC_IMV_Evaluation_Result res; attr_cast = (ietf_attr_assess_result_t*)attr; - result = attr_cast->get_result(attr_cast); - this->state->set_result(this->state, target_imc_id, result); + res = attr_cast->get_result(attr_cast); + this->state->set_result(this->state, target_imc_id, res); print_assessment_header(this->agent->get_name(this->agent), target_imc_id, this->src_id, &first); DBG1(DBG_IMC, "assessment result is '%N'", - TNC_IMV_Evaluation_Result_names, result); + TNC_IMV_Evaluation_Result_names, res); } else if (attr_type.type == IETF_ATTR_REMEDIATION_INSTRUCTIONS) { diff --git a/src/libimcv/imc/imc_msg.h b/src/libimcv/imc/imc_msg.h index 588225dbe..a8c4d3c02 100644 --- a/src/libimcv/imc/imc_msg.h +++ b/src/libimcv/imc/imc_msg.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -65,10 +65,12 @@ struct imc_msg_t { /** * Processes a received PA-TNC message * + * @param out_msg outgoing PA-TN message * @param fatal_error TRUE if IMV sent a fatal error message * @return TNC result code */ - TNC_Result (*receive)(imc_msg_t *this, bool *fatal_error); + TNC_Result (*receive)(imc_msg_t *this, imc_msg_t *out_msg, + bool *fatal_error); /** * Add a PA-TNC attribute to the send queue diff --git a/src/libimcv/imc/imc_os_info.h b/src/libimcv/imc/imc_os_info.h index a6db44314..6bb0e960c 100644 --- a/src/libimcv/imc/imc_os_info.h +++ b/src/libimcv/imc/imc_os_info.h @@ -15,7 +15,7 @@ /** * @defgroup imc_os_info imc_os_info - * @{ @ingroup libimcv + * @{ @ingroup libimcv_imc */ #ifndef IMC_OS_INFO_H_ diff --git a/src/libimcv/imc/imc_state.h b/src/libimcv/imc/imc_state.h index 7e763fbe1..efcf567f0 100644 --- a/src/libimcv/imc/imc_state.h +++ b/src/libimcv/imc/imc_state.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -22,6 +22,8 @@ #ifndef IMC_STATE_H_ #define IMC_STATE_H_ +#include "seg/seg_contract_manager.h" + #include <tncif.h> #include <tncifimv.h> #include <tncifimc.h> @@ -80,6 +82,13 @@ struct imc_state_t { u_int32_t (*get_max_msg_len)(imc_state_t *this); /** + * Get attribute segmentation contracts associated with TNCCS Connection + * + * @return contracts associated with TNCCS Connection + */ + seg_contract_manager_t* (*get_contracts)(imc_state_t *this); + + /** * Change the connection state * * @param new_state new connection state diff --git a/src/libimcv/imcv.c b/src/libimcv/imcv.c index 30679a33d..bd4156c19 100644 --- a/src/libimcv/imcv.c +++ b/src/libimcv/imcv.c @@ -15,6 +15,14 @@ #include "imcv.h" #include "ietf/ietf_attr.h" #include "ita/ita_attr.h" +#include "tcg/tcg_attr.h" +#include "pts/components/pts_component.h" +#include "pts/components/pts_component_manager.h" +#include "pts/components/tcg/tcg_comp_func_name.h" +#include "pts/components/ita/ita_comp_func_name.h" +#include "pts/components/ita/ita_comp_ima.h" +#include "pts/components/ita/ita_comp_tboot.h" +#include "pts/components/ita/ita_comp_tgrub.h" #include <utils/debug.h> #include <utils/utils.h> @@ -24,8 +32,12 @@ #include <syslog.h> #endif +#ifndef IPSEC_SCRIPT +#define IPSEC_SCRIPT "ipsec" +#endif + #define IMCV_DEBUG_LEVEL 1 -#define IMCV_DEFAULT_POLICY_SCRIPT "ipsec _imv_policy" +#define IMCV_DEFAULT_POLICY_SCRIPT IPSEC_SCRIPT " _imv_policy" /** @@ -44,6 +56,11 @@ imv_session_manager_t *imcv_sessions; imv_database_t *imcv_db; /** + * PTS Functional Component manager + */ +pts_component_manager_t *imcv_pts_components; + +/** * Reference count for libimcv */ static refcount_t libimcv_ref = 0; @@ -162,7 +179,26 @@ bool libimcv_init(bool is_imv) ietf_attr_create_from_data, ietf_attr_names); imcv_pa_tnc_attributes->add_vendor(imcv_pa_tnc_attributes, PEN_ITA, ita_attr_create_from_data, ita_attr_names); - + imcv_pa_tnc_attributes->add_vendor(imcv_pa_tnc_attributes, PEN_TCG, + tcg_attr_create_from_data, tcg_attr_names); + + imcv_pts_components = pts_component_manager_create(); + imcv_pts_components->add_vendor(imcv_pts_components, PEN_TCG, + pts_tcg_comp_func_names, PTS_TCG_QUALIFIER_TYPE_SIZE, + pts_tcg_qualifier_flag_names, pts_tcg_qualifier_type_names); + imcv_pts_components->add_vendor(imcv_pts_components, PEN_ITA, + pts_ita_comp_func_names, PTS_ITA_QUALIFIER_TYPE_SIZE, + pts_ita_qualifier_flag_names, pts_ita_qualifier_type_names); + + imcv_pts_components->add_component(imcv_pts_components, PEN_ITA, + PTS_ITA_COMP_FUNC_NAME_TGRUB, + pts_ita_comp_tgrub_create); + imcv_pts_components->add_component(imcv_pts_components, PEN_ITA, + PTS_ITA_COMP_FUNC_NAME_TBOOT, + pts_ita_comp_tboot_create); + imcv_pts_components->add_component(imcv_pts_components, PEN_ITA, + PTS_ITA_COMP_FUNC_NAME_IMA, + pts_ita_comp_ima_create); if (is_imv) { /* instantiate global IMV session manager */ @@ -193,8 +229,13 @@ void libimcv_deinit(void) { if (ref_put(&libimcv_ref)) { + imcv_pts_components->remove_vendor(imcv_pts_components, PEN_TCG); + imcv_pts_components->remove_vendor(imcv_pts_components, PEN_ITA); + imcv_pts_components->destroy(imcv_pts_components); + imcv_pa_tnc_attributes->remove_vendor(imcv_pa_tnc_attributes, PEN_IETF); imcv_pa_tnc_attributes->remove_vendor(imcv_pa_tnc_attributes, PEN_ITA); + imcv_pa_tnc_attributes->remove_vendor(imcv_pa_tnc_attributes, PEN_TCG); DESTROY_IF(imcv_pa_tnc_attributes); imcv_pa_tnc_attributes = NULL; DESTROY_IF(imcv_db); diff --git a/src/libimcv/imcv.h b/src/libimcv/imcv.h index 771038803..31536eca5 100644 --- a/src/libimcv/imcv.h +++ b/src/libimcv/imcv.h @@ -27,6 +27,12 @@ * @defgroup libimcv_plugins plugins * @ingroup libimcv * + * @defgroup libimcv_seg seg + * @ingroup libimcv + * + * @defgroup libimcv_swid swid + * @ingroup libimcv + * * @addtogroup libimcv * @{ */ @@ -37,6 +43,7 @@ #include "pa_tnc/pa_tnc_attr_manager.h" #include "imv/imv_database.h" #include "imv/imv_session_manager.h" +#include "pts/components/pts_component_manager.h" #include <library.h> @@ -68,4 +75,9 @@ extern imv_database_t* imcv_db; */ extern imv_session_manager_t* imcv_sessions; +/** + * PTS Functional Component manager + */ +extern pts_component_manager_t* imcv_pts_components; + #endif /** IMCV_H_ @}*/ diff --git a/src/libimcv/imcv_tests.c b/src/libimcv/imcv_tests.c new file mode 100644 index 000000000..e9bb303b4 --- /dev/null +++ b/src/libimcv/imcv_tests.c @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <test_runner.h> + +#include <library.h> + +/* declare test suite constructors */ +#define TEST_SUITE(x) test_suite_t* x(); +#include "imcv_tests.h" +#undef TEST_SUITE + +static test_configuration_t tests[] = { +#define TEST_SUITE(x) \ + { .suite = x, }, +#include "imcv_tests.h" + { .suite = NULL, } +}; + +static bool test_runner_init(bool init) +{ + if (!init) + { + lib->processor->set_threads(lib->processor, 0); + lib->processor->cancel(lib->processor); + } + return TRUE; +} + +int main(int argc, char *argv[]) +{ + return test_runner_run("libimcv", tests, test_runner_init); +} diff --git a/src/libimcv/imcv_tests.h b/src/libimcv/imcv_tests.h new file mode 100644 index 000000000..d3ea24b1f --- /dev/null +++ b/src/libimcv/imcv_tests.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +TEST_SUITE(imcv_seg_suite_create) + diff --git a/src/libimcv/imv/data.sql b/src/libimcv/imv/data.sql index b45cad487..425748f59 100644 --- a/src/libimcv/imv/data.sql +++ b/src/libimcv/imv/data.sql @@ -306,6 +306,23 @@ INSERT INTO products ( /* 51 */ 'Android 4.4.4' ); +INSERT INTO products ( /* 52 */ + name +) VALUES ( + 'Debian 7.6 i686' +); + +INSERT INTO products ( /* 53 */ + name +) VALUES ( + 'Debian 7.6 x86_64' +); +INSERT INTO products ( /* 54 */ + name +) VALUES ( + 'Debian 7.6 armv6l' +); + /* Directories */ INSERT INTO directories ( /* 1 */ @@ -777,6 +794,12 @@ INSERT INTO groups_product_defaults ( INSERT INTO groups_product_defaults ( group_id, product_id ) VALUES ( + 4, 52 +); + +INSERT INTO groups_product_defaults ( + group_id, product_id +) VALUES ( 5, 2 ); @@ -825,6 +848,12 @@ INSERT INTO groups_product_defaults ( INSERT INTO groups_product_defaults ( group_id, product_id ) VALUES ( + 5, 53 +); + +INSERT INTO groups_product_defaults ( + group_id, product_id +) VALUES ( 6, 9 ); @@ -1026,6 +1055,12 @@ INSERT INTO groups_product_defaults ( 14, 48 ); +INSERT INTO groups_product_defaults ( + group_id, product_id +) VALUES ( + 14, 54 +); + /* Policies */ INSERT INTO policies ( /* 1 */ diff --git a/src/libimcv/imv/imv_agent.c b/src/libimcv/imv/imv_agent.c index a46455d47..6b24f4b28 100644 --- a/src/libimcv/imv/imv_agent.c +++ b/src/libimcv/imv/imv_agent.c @@ -65,6 +65,11 @@ struct private_imv_agent_t { linked_list_t *additional_ids; /** + * list of non-fatal unsupported PA-TNC attribute types + */ + linked_list_t *non_fatal_attr_types; + + /** * list of TNCS connection entries */ linked_list_t *connections; @@ -772,11 +777,29 @@ METHOD(imv_agent_t, provide_recommendation, TNC_Result, return this->provide_recommendation(this->id, connection_id, rec, eval); } +METHOD(imv_agent_t, add_non_fatal_attr_type, void, + private_imv_agent_t *this, pen_type_t type) +{ + pen_type_t *type_p; + + type_p = malloc_thing(pen_type_t); + *type_p = type; + this->non_fatal_attr_types->insert_last(this->non_fatal_attr_types, type_p); +} + +METHOD(imv_agent_t, get_non_fatal_attr_types, linked_list_t*, + private_imv_agent_t *this) +{ + return this->non_fatal_attr_types; +} + METHOD(imv_agent_t, destroy, void, private_imv_agent_t *this) { DBG1(DBG_IMV, "IMV %u \"%s\" terminated", this->id, this->name); this->additional_ids->destroy(this->additional_ids); + this->non_fatal_attr_types->destroy_function(this->non_fatal_attr_types, + free); this->connections->destroy_offset(this->connections, offsetof(imv_state_t, destroy)); this->connection_lock->destroy(this->connection_lock); @@ -815,6 +838,8 @@ imv_agent_t *imv_agent_create(const char *name, .create_id_enumerator = _create_id_enumerator, .create_language_enumerator = _create_language_enumerator, .provide_recommendation = _provide_recommendation, + .add_non_fatal_attr_type = _add_non_fatal_attr_type, + .get_non_fatal_attr_types = _get_non_fatal_attr_types, .destroy = _destroy, }, .name = name, @@ -822,6 +847,7 @@ imv_agent_t *imv_agent_create(const char *name, .type_count = type_count, .id = id, .additional_ids = linked_list_create(), + .non_fatal_attr_types = linked_list_create(), .connections = linked_list_create(), .connection_lock = rwlock_create(RWLOCK_TYPE_DEFAULT), ); diff --git a/src/libimcv/imv/imv_agent.h b/src/libimcv/imv/imv_agent.h index 47ce770bc..1f6a10b7c 100644 --- a/src/libimcv/imv/imv_agent.h +++ b/src/libimcv/imv/imv_agent.h @@ -189,6 +189,16 @@ struct imv_agent_t { TNC_Result (*provide_recommendation)(imv_agent_t *this, imv_state_t* state); /** + * Add an item to the list of non-fatal unsupported PA-TNC attribute types + */ + void (*add_non_fatal_attr_type)(imv_agent_t *this, pen_type_t type); + + /** + * Get a list of non-fatal unsupported PA-TNC attribute types + */ + linked_list_t* (*get_non_fatal_attr_types)(imv_agent_t *this); + + /** * Destroys an imv_agent_t object */ void (*destroy)(imv_agent_t *this); diff --git a/src/libimcv/imv/imv_msg.c b/src/libimcv/imv/imv_msg.c index e7181750c..fdf63325d 100644 --- a/src/libimcv/imv/imv_msg.c +++ b/src/libimcv/imv/imv_msg.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -18,8 +18,12 @@ #include "ietf/ietf_attr.h" #include "ietf/ietf_attr_assess_result.h" #include "ietf/ietf_attr_remediation_instr.h" +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" +#include "tcg/seg/tcg_seg_attr_next_seg.h" #include <tncif_names.h> +#include <tncif_pa_subtypes.h> #include <pen/pen.h> #include <collections/linked_list.h> @@ -121,11 +125,18 @@ METHOD(imv_msg_t, send_, TNC_Result, pa_tnc_attr_t *attr; TNC_UInt32 msg_flags; TNC_MessageType msg_type; - bool attr_added; + bool attr_added, oversize; chunk_t msg; + seg_contract_t *contract; + seg_contract_manager_t *contracts; enumerator_t *enumerator; TNC_Result result = TNC_RESULT_SUCCESS; + /* Get IF-M segmentation contract for this subtype if any */ + contracts = this->state->get_contracts(this->state); + contract = contracts->get_contract(contracts, this->msg_type, + FALSE, this->dst_id); + while (this->attr_list->get_count(this->attr_list)) { pa_tnc_msg = pa_tnc_msg_create(this->state->get_max_msg_len(this->state)); @@ -134,6 +145,17 @@ METHOD(imv_msg_t, send_, TNC_Result, enumerator = this->attr_list->create_enumerator(this->attr_list); while (enumerator->enumerate(enumerator, &attr)) { + if (contract && contract->check_size(contract, attr, &oversize)) + { + if (oversize) + { + /* TODO generate SWID error msg */ + } + else + { + attr = contract->first_segment(contract, attr); + } + } if (pa_tnc_msg->add_attribute(pa_tnc_msg, attr)) { attr_added = TRUE; @@ -246,8 +268,11 @@ METHOD(imv_msg_t, send_assessment, TNC_Result, } METHOD(imv_msg_t, receive, TNC_Result, - private_imv_msg_t *this, bool *fatal_error) + private_imv_msg_t *this, imv_msg_t *out_msg, bool *fatal_error) { + TNC_Result result = TNC_RESULT_SUCCESS; + TNC_UInt32 target_imv_id; + linked_list_t *non_fatal_types; enumerator_t *enumerator; pa_tnc_attr_t *attr; chunk_t msg; @@ -286,36 +311,211 @@ METHOD(imv_msg_t, receive, TNC_Result, break; case VERIFY_ERROR: { - imv_msg_t *error_msg; - TNC_Result result; - - error_msg = imv_msg_create_as_reply(&this->public); - /* extract and copy by reference all error attributes */ enumerator = this->pa_msg->create_error_enumerator(this->pa_msg); while (enumerator->enumerate(enumerator, &attr)) { - error_msg->add_attribute(error_msg, attr->get_ref(attr)); + out_msg->add_attribute(out_msg, attr->get_ref(attr)); } enumerator->destroy(enumerator); - - /* - * send the PA-TNC message containing all error attributes - * with the excl flag set - */ - result = error_msg->send(error_msg, TRUE); - error_msg->destroy(error_msg); - return result; } case FAILED: default: return TNC_RESULT_FATAL; } + /* determine target IMV ID */ + target_imv_id = (this->dst_id != TNC_IMVID_ANY) ? + this->dst_id : this->agent->get_id(this->agent); + + /* process IF-M segmentation attributes */ + enumerator = this->pa_msg->create_attribute_enumerator(this->pa_msg); + while (enumerator->enumerate(enumerator, &attr)) + { + uint32_t max_attr_size, max_seg_size, my_max_attr_size, my_max_seg_size; + seg_contract_manager_t *contracts; + seg_contract_t *contract; + char buf[BUF_LEN]; + pen_type_t type; + + type = attr->get_type(attr); + + if (type.vendor_id != PEN_TCG) + { + continue; + } + + contracts = this->state->get_contracts(this->state); + + switch (type.type) + { + case TCG_SEG_MAX_ATTR_SIZE_REQ: + { + tcg_seg_attr_max_size_t *attr_cast; + + attr_cast = (tcg_seg_attr_max_size_t*)attr; + attr_cast->get_attr_size(attr_cast, &max_attr_size, + &max_seg_size); + contract = contracts->get_contract(contracts, this->msg_type, + FALSE, this->src_id); + if (contract) + { + contract->set_max_size(contract, max_attr_size, + max_seg_size); + } + else + { + contract = seg_contract_create(this->msg_type, max_attr_size, + max_seg_size, FALSE, this->src_id, FALSE); + contract->set_responder(contract, target_imv_id); + contracts->add_contract(contracts, contract); + } + contract->get_info_string(contract, buf, BUF_LEN, TRUE); + DBG2(DBG_IMV, "%s", buf); + + /* Determine maximum PA-TNC attribute segment size */ + my_max_seg_size = this->state->get_max_msg_len(this->state) + - PA_TNC_HEADER_SIZE + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_SEG_ENV_HEADER + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_MAX_SIZE_SIZE; + + /* If segmentation is possible select lower segment size */ + if (max_seg_size != SEG_CONTRACT_NO_FRAGMENTATION && + max_seg_size > my_max_seg_size) + { + max_seg_size = my_max_seg_size; + contract->set_max_size(contract, max_attr_size, + max_seg_size); + DBG2(DBG_IMV, " lowered maximum segment size to %u bytes", + max_seg_size); + } + + /* Add Maximum Attribute Size Response attribute */ + attr = tcg_seg_attr_max_size_create(max_attr_size, + max_seg_size, FALSE); + out_msg->add_attribute(out_msg, attr); + break; + } + case TCG_SEG_MAX_ATTR_SIZE_RESP: + { + tcg_seg_attr_max_size_t *attr_cast; + + attr_cast = (tcg_seg_attr_max_size_t*)attr; + attr_cast->get_attr_size(attr_cast, &max_attr_size, + &max_seg_size); + contract = contracts->get_contract(contracts, this->msg_type, + TRUE, this->src_id); + if (!contract) + { + contract = contracts->get_contract(contracts, this->msg_type, + TRUE, TNC_IMCID_ANY); + if (contract) + { + contract = contract->clone(contract); + contract->set_responder(contract, this->src_id); + contracts->add_contract(contracts, contract); + } + } + if (contract) + { + contract->get_max_size(contract, &my_max_attr_size, + &my_max_seg_size); + if (my_max_seg_size != SEG_CONTRACT_NO_FRAGMENTATION && + my_max_seg_size > max_seg_size) + { + my_max_seg_size = max_seg_size; + contract->set_max_size(contract, my_max_attr_size, + my_max_seg_size); + } + contract->get_info_string(contract, buf, BUF_LEN, FALSE); + DBG2(DBG_IMV, "%s", buf); + } + else + { + /* TODO no request pending */ + DBG1(DBG_IMV, "no contract for this PA message type found"); + } + break; + } + case TCG_SEG_ATTR_SEG_ENV: + { + tcg_seg_attr_seg_env_t *seg_env_attr; + pa_tnc_attr_t *error; + uint32_t base_attr_id; + bool more; + + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + base_attr_id = seg_env_attr->get_base_attr_id(seg_env_attr); + + contract = contracts->get_contract(contracts, this->msg_type, + TRUE, this->src_id); + if (!contract) + { + DBG2(DBG_IMV, "no contract for received attribute segment " + "with base attribute ID %u", base_attr_id); + continue; + } + attr = contract->add_segment(contract, attr, &error, &more); + if (error) + { + out_msg->add_attribute(out_msg, error); + } + if (attr) + { + this->pa_msg->add_attribute(this->pa_msg, attr); + } + if (more) + { + /* Send Next Segment Request */ + attr = tcg_seg_attr_next_seg_create(base_attr_id, FALSE); + out_msg->add_attribute(out_msg, attr); + } + break; + } + case TCG_SEG_NEXT_SEG_REQ: + { + tcg_seg_attr_next_seg_t *attr_cast; + uint32_t base_attr_id; + + attr_cast = (tcg_seg_attr_next_seg_t*)attr; + base_attr_id = attr_cast->get_base_attr_id(attr_cast); + + contract = contracts->get_contract(contracts, this->msg_type, + FALSE, this->src_id); + if (!contract) + { + /* TODO no contract - generate error message */ + DBG1(DBG_IMV, "no contract for received next segment " + "request with base attribute ID %u", base_attr_id); + continue; + } + attr = contract->next_segment(contract, base_attr_id); + if (attr) + { + out_msg->add_attribute(out_msg, attr); + } + else + { + /* TODO no more segments - generate error message */ + DBG1(DBG_IMV, "no more segments found for " + "base attribute ID %u", base_attr_id); + } + break; + } + default: + break; + } + } + enumerator->destroy(enumerator); + /* preprocess any received IETF standard error attributes */ - *fatal_error = this->pa_msg->process_ietf_std_errors(this->pa_msg); + non_fatal_types = this->agent->get_non_fatal_attr_types(this->agent); + *fatal_error = this->pa_msg->process_ietf_std_errors(this->pa_msg, + non_fatal_types); - return TNC_RESULT_SUCCESS; + return result; } METHOD(imv_msg_t, get_attribute_count, int, diff --git a/src/libimcv/imv/imv_msg.h b/src/libimcv/imv/imv_msg.h index dfec169cc..43b91e908 100644 --- a/src/libimcv/imv/imv_msg.h +++ b/src/libimcv/imv/imv_msg.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -79,10 +79,12 @@ struct imv_msg_t { /** * Processes a received PA-TNC message * + * @param out_msg outgoing PA-TN message * @param fatal_error TRUE if IMC sent a fatal error message * @return TNC result code */ - TNC_Result (*receive)(imv_msg_t *this, bool *fatal_error); + TNC_Result (*receive)(imv_msg_t *this, imv_msg_t *out_msg, + bool *fatal_error); /** * Add a PA-TNC attribute to the send queue diff --git a/src/libimcv/imv/imv_os_info.h b/src/libimcv/imv/imv_os_info.h index b68a17ee7..7cd609a22 100644 --- a/src/libimcv/imv/imv_os_info.h +++ b/src/libimcv/imv/imv_os_info.h @@ -15,7 +15,7 @@ /** * @defgroup imv_os_info imv_os_info - * @{ @ingroup libimcv + * @{ @ingroup libimcv_imv */ #ifndef IMV_OS_INFO_H_ diff --git a/src/libimcv/imv/imv_state.h b/src/libimcv/imv/imv_state.h index d11d15e0d..30ed612b3 100644 --- a/src/libimcv/imv/imv_state.h +++ b/src/libimcv/imv/imv_state.h @@ -23,6 +23,7 @@ #define IMV_STATE_H_ #include "imv_session.h" +#include "seg/seg_contract_manager.h" #include <tncifimv.h> @@ -108,6 +109,13 @@ struct imv_state_t { imv_session_t* (*get_session)(imv_state_t *this); /** + * Get attribute segmentation contracts associated with TNCCS Connection + * + * @return Contracts associated with TNCCS Connection + */ + seg_contract_manager_t* (*get_contracts)(imv_state_t *this); + + /** * Change the connection state * * @param new_state new connection state diff --git a/src/libimcv/ita/ita_attr.c b/src/libimcv/ita/ita_attr.c index f3956717d..9d7706dba 100644 --- a/src/libimcv/ita/ita_attr.c +++ b/src/libimcv/ita/ita_attr.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -35,24 +35,25 @@ ENUM(ita_attr_names, ITA_ATTR_COMMAND, ITA_ATTR_DEVICE_ID, /** * See header */ -pa_tnc_attr_t* ita_attr_create_from_data(u_int32_t type, chunk_t value) +pa_tnc_attr_t* ita_attr_create_from_data(u_int32_t type, size_t length, + chunk_t value) { switch (type) { case ITA_ATTR_COMMAND: - return ita_attr_command_create_from_data(value); + return ita_attr_command_create_from_data(length, value); case ITA_ATTR_DUMMY: - return ita_attr_dummy_create_from_data(value); + return ita_attr_dummy_create_from_data(length, value); case ITA_ATTR_GET_SETTINGS: - return ita_attr_get_settings_create_from_data(value); + return ita_attr_get_settings_create_from_data(length, value); case ITA_ATTR_SETTINGS: - return ita_attr_settings_create_from_data(value); + return ita_attr_settings_create_from_data(length, value); case ITA_ATTR_START_ANGEL: - return ita_attr_angel_create_from_data(TRUE, value); + return ita_attr_angel_create_from_data(TRUE); case ITA_ATTR_STOP_ANGEL: - return ita_attr_angel_create_from_data(FALSE, value); + return ita_attr_angel_create_from_data(FALSE); case ITA_ATTR_DEVICE_ID: - return ita_attr_device_id_create_from_data(value); + return ita_attr_device_id_create_from_data(length, value); default: return NULL; } diff --git a/src/libimcv/ita/ita_attr.h b/src/libimcv/ita/ita_attr.h index ac5d8abaa..7378a1cbe 100644 --- a/src/libimcv/ita/ita_attr.h +++ b/src/libimcv/ita/ita_attr.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -50,8 +50,10 @@ extern enum_name_t *ita_attr_names; * Create a ITA PA-TNC attribute from data * * @param type attribute type - * @param value attribute value + * @param length attribute length + * @param value attribute value or segment */ -pa_tnc_attr_t* ita_attr_create_from_data(u_int32_t type, chunk_t value); +pa_tnc_attr_t* ita_attr_create_from_data(u_int32_t type, size_t length, + chunk_t value); #endif /** ITA_ATTR_H_ @}*/ diff --git a/src/libimcv/ita/ita_attr_angel.c b/src/libimcv/ita/ita_attr_angel.c index 0e9cff0a9..110863608 100644 --- a/src/libimcv/ita/ita_attr_angel.c +++ b/src/libimcv/ita/ita_attr_angel.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -86,6 +86,12 @@ METHOD(pa_tnc_attr_t, process, status_t, return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ita_attr_angel_t *this, chunk_t segment) +{ + /* nothing to add */ +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ita_attr_angel_t *this) { @@ -118,6 +124,7 @@ pa_tnc_attr_t *ita_attr_angel_create(bool start) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -132,7 +139,7 @@ pa_tnc_attr_t *ita_attr_angel_create(bool start) /** * Described in header. */ -pa_tnc_attr_t *ita_attr_angel_create_from_data(bool start, chunk_t data) +pa_tnc_attr_t *ita_attr_angel_create_from_data(bool start) { private_ita_attr_angel_t *this; @@ -145,6 +152,7 @@ pa_tnc_attr_t *ita_attr_angel_create_from_data(bool start, chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, diff --git a/src/libimcv/ita/ita_attr_angel.h b/src/libimcv/ita/ita_attr_angel.h index d42e7119a..8cd979b01 100644 --- a/src/libimcv/ita/ita_attr_angel.h +++ b/src/libimcv/ita/ita_attr_angel.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -49,8 +49,7 @@ pa_tnc_attr_t* ita_attr_angel_create(bool start); * Creates an ita_attr_angel_t object from received data * * @param start TRUE for Start, FALSE for Stop Angel attribute - * @param value binary value blob */ -pa_tnc_attr_t* ita_attr_angel_create_from_data(bool start, chunk_t value); +pa_tnc_attr_t* ita_attr_angel_create_from_data(bool start); #endif /** ITA_ATTR_ANGEL_H_ @}*/ diff --git a/src/libimcv/ita/ita_attr_command.c b/src/libimcv/ita/ita_attr_command.c index 9692e1ffd..a6b187f13 100644 --- a/src/libimcv/ita/ita_attr_command.c +++ b/src/libimcv/ita/ita_attr_command.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -40,7 +40,12 @@ struct private_ita_attr_command_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -91,18 +96,30 @@ METHOD(pa_tnc_attr_t, build, void, { return; } - this->value = chunk_create(this->command, strlen(this->command)); - this->value = chunk_clone(this->value); + this->value = chunk_clone(chunk_from_str(this->command)); + this->length = this->value.len; } METHOD(pa_tnc_attr_t, process, status_t, private_ita_attr_command_t *this, u_int32_t *offset) { + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } this->command = strndup(this->value.ptr, this->value.len); return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ita_attr_command_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ita_attr_command_t *this) { @@ -143,6 +160,7 @@ pa_tnc_attr_t *ita_attr_command_create(char *command) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -159,7 +177,7 @@ pa_tnc_attr_t *ita_attr_command_create(char *command) /** * Described in header. */ -pa_tnc_attr_t *ita_attr_command_create_from_data(chunk_t data) +pa_tnc_attr_t *ita_attr_command_create_from_data(size_t length, chunk_t data) { private_ita_attr_command_t *this; @@ -172,12 +190,14 @@ pa_tnc_attr_t *ita_attr_command_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_command = _get_command, }, .type = {PEN_ITA, ITA_ATTR_COMMAND }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ita/ita_attr_command.h b/src/libimcv/ita/ita_attr_command.h index 3926c3887..dd4701e12 100644 --- a/src/libimcv/ita/ita_attr_command.h +++ b/src/libimcv/ita/ita_attr_command.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -54,8 +54,9 @@ pa_tnc_attr_t* ita_attr_command_create(char *command); /** * Creates an ita_attr_command_t object from received data * - * @param value binary value blob + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ita_attr_command_create_from_data(chunk_t value); +pa_tnc_attr_t* ita_attr_command_create_from_data(size_t length, chunk_t value); #endif /** ITA_ATTR_COMMAND_H_ @}*/ diff --git a/src/libimcv/ita/ita_attr_device_id.c b/src/libimcv/ita/ita_attr_device_id.c index 36907eb34..232842695 100644 --- a/src/libimcv/ita/ita_attr_device_id.c +++ b/src/libimcv/ita/ita_attr_device_id.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Andreas Steffen + * Copyright (C) 2013-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -38,7 +38,12 @@ struct private_ita_attr_device_id_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -86,9 +91,21 @@ METHOD(pa_tnc_attr_t, build, void, METHOD(pa_tnc_attr_t, process, status_t, private_ita_attr_device_id_t *this, u_int32_t *offset) { + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ita_attr_device_id_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ita_attr_device_id_t *this) { @@ -109,7 +126,7 @@ METHOD(pa_tnc_attr_t, destroy, void, /** * Described in header. */ -pa_tnc_attr_t *ita_attr_device_id_create_from_data(chunk_t value) +pa_tnc_attr_t *ita_attr_device_id_create_from_data(size_t length, chunk_t value) { private_ita_attr_device_id_t *this; @@ -122,11 +139,13 @@ pa_tnc_attr_t *ita_attr_device_id_create_from_data(chunk_t value) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, }, .type = { PEN_ITA, ITA_ATTR_DEVICE_ID }, + .length = length, .value = chunk_clone(value), .ref = 1, ); @@ -139,6 +158,6 @@ pa_tnc_attr_t *ita_attr_device_id_create_from_data(chunk_t value) */ pa_tnc_attr_t *ita_attr_device_id_create(chunk_t value) { - return ita_attr_device_id_create_from_data(value); + return ita_attr_device_id_create_from_data(value.len, value); } diff --git a/src/libimcv/ita/ita_attr_device_id.h b/src/libimcv/ita/ita_attr_device_id.h index ffacdba1e..94bb778c0 100644 --- a/src/libimcv/ita/ita_attr_device_id.h +++ b/src/libimcv/ita/ita_attr_device_id.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Andreas Steffen + * Copyright (C) 2013-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -48,8 +48,9 @@ pa_tnc_attr_t* ita_attr_device_id_create(chunk_t value); /** * Creates an ita_attr_device_id_t object from received data * - * @param value binary value blob + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ita_attr_device_id_create_from_data(chunk_t value); +pa_tnc_attr_t* ita_attr_device_id_create_from_data(size_t length, chunk_t value); #endif /** ITA_ATTR_DEVICE_ID_H_ @}*/ diff --git a/src/libimcv/ita/ita_attr_dummy.c b/src/libimcv/ita/ita_attr_dummy.c index 6497d4645..0d21ac6ea 100644 --- a/src/libimcv/ita/ita_attr_dummy.c +++ b/src/libimcv/ita/ita_attr_dummy.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -38,7 +38,12 @@ struct private_ita_attr_dummy_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -89,18 +94,28 @@ METHOD(pa_tnc_attr_t, build, void, { return; } - this->value = chunk_alloc(this->size); + this->value = chunk_alloc(this->length); memset(this->value.ptr, 0xdd, this->value.len); } METHOD(pa_tnc_attr_t, process, status_t, private_ita_attr_dummy_t *this, u_int32_t *offset) { - this->size = this->value.len; + *offset = 0; + if (this->value.len < this->length) + { + return NEED_MORE; + } return SUCCESS; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ita_attr_dummy_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ita_attr_dummy_t *this) { @@ -121,13 +136,13 @@ METHOD(pa_tnc_attr_t, destroy, void, METHOD(ita_attr_dummy_t, get_size, int, private_ita_attr_dummy_t *this) { - return this->size; + return this->length; } /** * Described in header. */ -pa_tnc_attr_t *ita_attr_dummy_create(int size) +pa_tnc_attr_t *ita_attr_dummy_create(size_t size) { private_ita_attr_dummy_t *this; @@ -140,13 +155,14 @@ pa_tnc_attr_t *ita_attr_dummy_create(int size) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_size = _get_size, }, .type = { PEN_ITA, ITA_ATTR_DUMMY }, - .size = size, + .length = size, .ref = 1, ); @@ -156,7 +172,7 @@ pa_tnc_attr_t *ita_attr_dummy_create(int size) /** * Described in header. */ -pa_tnc_attr_t *ita_attr_dummy_create_from_data(chunk_t data) +pa_tnc_attr_t *ita_attr_dummy_create_from_data(size_t length, chunk_t data) { private_ita_attr_dummy_t *this; @@ -169,12 +185,14 @@ pa_tnc_attr_t *ita_attr_dummy_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, .get_size = _get_size, }, .type = { PEN_ITA, ITA_ATTR_DUMMY }, + .length = length, .value = chunk_clone(data), .ref = 1, ); diff --git a/src/libimcv/ita/ita_attr_dummy.h b/src/libimcv/ita/ita_attr_dummy.h index 1f85ece54..717862efe 100644 --- a/src/libimcv/ita/ita_attr_dummy.h +++ b/src/libimcv/ita/ita_attr_dummy.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -49,13 +49,14 @@ struct ita_attr_dummy_t { * * @param size size of dummy attribute value */ -pa_tnc_attr_t* ita_attr_dummy_create(int size); +pa_tnc_attr_t* ita_attr_dummy_create(size_t size); /** * Creates an ita_attr_dummy_t object from received data * - * @param value binary value blob + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ita_attr_dummy_create_from_data(chunk_t value); +pa_tnc_attr_t* ita_attr_dummy_create_from_data(size_t length, chunk_t value); #endif /** ITA_ATTR_DUMMY_H_ @}*/ diff --git a/src/libimcv/ita/ita_attr_get_settings.c b/src/libimcv/ita/ita_attr_get_settings.c index d0bc31d32..3c047fb82 100644 --- a/src/libimcv/ita/ita_attr_get_settings.c +++ b/src/libimcv/ita/ita_attr_get_settings.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -64,7 +64,12 @@ struct private_ita_attr_get_settings_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -130,6 +135,7 @@ METHOD(pa_tnc_attr_t, build, void, enumerator->destroy(enumerator); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -141,10 +147,15 @@ METHOD(pa_tnc_attr_t, process, status_t, chunk_t name; status_t status = FAILED; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < ITA_GET_SETTINGS_MIN_SIZE) { DBG1(DBG_TNC, "insufficient data for ITA Get Settings attribute"); - *offset = 0; return FAILED; } @@ -171,6 +182,12 @@ end: return status; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ita_attr_get_settings_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ita_attr_get_settings_t *this) { @@ -217,6 +234,7 @@ pa_tnc_attr_t *ita_attr_get_settings_create(char *name) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -238,7 +256,8 @@ pa_tnc_attr_t *ita_attr_get_settings_create(char *name) /** * Described in header. */ -pa_tnc_attr_t *ita_attr_get_settings_create_from_data(chunk_t data) +pa_tnc_attr_t *ita_attr_get_settings_create_from_data(size_t length, + chunk_t data) { private_ita_attr_get_settings_t *this; @@ -251,6 +270,7 @@ pa_tnc_attr_t *ita_attr_get_settings_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -258,6 +278,7 @@ pa_tnc_attr_t *ita_attr_get_settings_create_from_data(chunk_t data) .create_enumerator = _create_enumerator, }, .type = { PEN_ITA, ITA_ATTR_GET_SETTINGS }, + .length = length, .value = chunk_clone(data), .list = linked_list_create(), .ref = 1, diff --git a/src/libimcv/ita/ita_attr_get_settings.h b/src/libimcv/ita/ita_attr_get_settings.h index 975fd0d9d..2eb43f5c1 100644 --- a/src/libimcv/ita/ita_attr_get_settings.h +++ b/src/libimcv/ita/ita_attr_get_settings.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -61,8 +61,10 @@ pa_tnc_attr_t* ita_attr_get_settings_create(char *name); /** * Creates an ita_attr_get_settings_t object from received data * - * @param value binary value blob + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ita_attr_get_settings_create_from_data(chunk_t value); +pa_tnc_attr_t* ita_attr_get_settings_create_from_data(size_t length, + chunk_t value); #endif /** ITA_ATTR_GET_SETTINGS_H_ @}*/ diff --git a/src/libimcv/ita/ita_attr_settings.c b/src/libimcv/ita/ita_attr_settings.c index 0d2967e66..ced347705 100644 --- a/src/libimcv/ita/ita_attr_settings.c +++ b/src/libimcv/ita/ita_attr_settings.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -91,7 +91,12 @@ struct private_ita_attr_settings_t { pen_type_t type; /** - * Attribute value + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment */ chunk_t value; @@ -159,6 +164,7 @@ METHOD(pa_tnc_attr_t, build, void, enumerator->destroy(enumerator); this->value = writer->extract_buf(writer); + this->length = this->value.len; writer->destroy(writer); } @@ -171,10 +177,15 @@ METHOD(pa_tnc_attr_t, process, status_t, entry_t *entry; status_t status = FAILED; + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } if (this->value.len < ITA_SETTINGS_MIN_SIZE) { DBG1(DBG_TNC, "insufficient data for ITA Settings attribute"); - *offset = 0; return FAILED; } @@ -216,6 +227,12 @@ end: return status; } +METHOD(pa_tnc_attr_t, add_segment, void, + private_ita_attr_settings_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, private_ita_attr_settings_t *this) { @@ -279,6 +296,7 @@ pa_tnc_attr_t *ita_attr_settings_create(void) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -296,7 +314,7 @@ pa_tnc_attr_t *ita_attr_settings_create(void) /** * Described in header. */ -pa_tnc_attr_t *ita_attr_settings_create_from_data(chunk_t data) +pa_tnc_attr_t *ita_attr_settings_create_from_data(size_t length, chunk_t data) { private_ita_attr_settings_t *this; @@ -309,6 +327,7 @@ pa_tnc_attr_t *ita_attr_settings_create_from_data(chunk_t data) .set_noskip_flag = _set_noskip_flag, .build = _build, .process = _process, + .add_segment = _add_segment, .get_ref = _get_ref, .destroy = _destroy, }, @@ -316,6 +335,7 @@ pa_tnc_attr_t *ita_attr_settings_create_from_data(chunk_t data) .create_enumerator = _create_enumerator, }, .type = { PEN_ITA, ITA_ATTR_SETTINGS }, + .length = length, .value = chunk_clone(data), .list = linked_list_create(), .ref = 1, diff --git a/src/libimcv/ita/ita_attr_settings.h b/src/libimcv/ita/ita_attr_settings.h index eb7eedae3..87eb87f60 100644 --- a/src/libimcv/ita/ita_attr_settings.h +++ b/src/libimcv/ita/ita_attr_settings.h @@ -60,8 +60,9 @@ pa_tnc_attr_t* ita_attr_settings_create(void); /** * Creates an ita_attr_settings_t object from received data * - * @param value binary value blob + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) */ -pa_tnc_attr_t* ita_attr_settings_create_from_data(chunk_t value); +pa_tnc_attr_t* ita_attr_settings_create_from_data(size_t length, chunk_t value); #endif /** ITA_ATTR_SETTINGS_H_ @}*/ diff --git a/src/libimcv/os_info/os_info.h b/src/libimcv/os_info/os_info.h index 031355458..aa7b137dc 100644 --- a/src/libimcv/os_info/os_info.h +++ b/src/libimcv/os_info/os_info.h @@ -21,7 +21,6 @@ #ifndef OS_INFO_H_ #define OS_INFO_H_ -typedef struct os_info_t os_info_t; typedef enum os_type_t os_type_t; typedef enum os_fwd_status_t os_fwd_status_t; typedef enum os_package_state_t os_package_state_t; diff --git a/src/libimcv/pa_tnc/pa_tnc_attr.h b/src/libimcv/pa_tnc/pa_tnc_attr.h index 1e0c339c9..be0bef32e 100644 --- a/src/libimcv/pa_tnc/pa_tnc_attr.h +++ b/src/libimcv/pa_tnc/pa_tnc_attr.h @@ -26,8 +26,12 @@ typedef struct pa_tnc_attr_t pa_tnc_attr_t; #include <library.h> #include <pen/pen.h> +#define PA_TNC_ATTR_INFO_SIZE 8 #define PA_TNC_ATTR_HEADER_SIZE 12 +#define PA_TNC_ATTR_FLAG_NONE 0x00 +#define PA_TNC_ATTR_FLAG_NOSKIP (1<<7) + /** * Interface for an RFC 5792 PA-TNC Posture Attribute. * @@ -70,12 +74,19 @@ struct pa_tnc_attr_t { /** * Process the value of an PA-TNC attribute to extract its parameters * - * @param relative error offset within attribute body + * @param offset relative error offset within attribute body * @return result status */ status_t (*process)(pa_tnc_attr_t *this, uint32_t *offset); /** + * Add a data segment to an attribute allowing incremental processing + * + * @param segment data segment to be appended + */ + void (*add_segment)(pa_tnc_attr_t *this, chunk_t segment); + + /** * Get a new reference to the PA-TNC attribute * * @return this, with an increased refcount diff --git a/src/libimcv/pa_tnc/pa_tnc_attr_manager.c b/src/libimcv/pa_tnc/pa_tnc_attr_manager.c index 900a55716..522213bd5 100644 --- a/src/libimcv/pa_tnc/pa_tnc_attr_manager.c +++ b/src/libimcv/pa_tnc/pa_tnc_attr_manager.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * * HSR Hochschule fuer Technik Rapperswil * @@ -16,6 +16,10 @@ #include "pa_tnc_attr_manager.h" +#include "imcv.h" +#include "pa_tnc_attr.h" +#include "ietf/ietf_attr_pa_tnc_error.h" + #include <collections/linked_list.h> #include <utils/debug.h> @@ -100,14 +104,102 @@ METHOD(pa_tnc_attr_manager_t, get_names, enum_name_t*, return attr_names; } +/** + * PA-TNC attribute + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | PA-TNC Attribute Vendor ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | PA-TNC Attribute Type | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | PA-TNC Attribute Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Attribute Value (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + METHOD(pa_tnc_attr_manager_t, create, pa_tnc_attr_t*, - private_pa_tnc_attr_manager_t *this, pen_t vendor_id, u_int32_t type, - chunk_t value) + private_pa_tnc_attr_manager_t *this, bio_reader_t *reader, bool segmented, + uint32_t *offset, chunk_t msg_info, pa_tnc_attr_t **error) { + uint8_t flags; + uint32_t type, length, value_len; + chunk_t value; + ietf_attr_pa_tnc_error_t *error_attr; + pen_t vendor_id; + pen_type_t unsupported_type; + pen_type_t error_code = { PEN_IETF, PA_ERROR_INVALID_PARAMETER }; + enum_name_t *pa_attr_names; + pa_tnc_attr_t *attr = NULL; enumerator_t *enumerator; entry_t *entry; - pa_tnc_attr_t *attr = NULL; + /* properly initialize error return argument in case of no error */ + *error = NULL; + + if (reader->remaining(reader) < PA_TNC_ATTR_HEADER_SIZE) + { + DBG1(DBG_TNC, "insufficient bytes for PA-TNC attribute header"); + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, *offset); + return NULL; + } + reader->read_uint8 (reader, &flags); + reader->read_uint24(reader, &vendor_id); + reader->read_uint32(reader, &type); + reader->read_uint32(reader, &length); + + pa_attr_names = imcv_pa_tnc_attributes->get_names(imcv_pa_tnc_attributes, + vendor_id); + if (pa_attr_names) + { + DBG2(DBG_TNC, "processing PA-TNC attribute type '%N/%N' " + "0x%06x/0x%08x", pen_names, vendor_id, + pa_attr_names, type, vendor_id, type); + } + else + { + DBG2(DBG_TNC, "processing PA-TNC attribute type '%N' " + "0x%06x/0x%08x", pen_names, vendor_id, + vendor_id, type); + } + + if (length < PA_TNC_ATTR_HEADER_SIZE) + { + DBG1(DBG_TNC, "%u bytes too small for PA-TNC attribute length", + length); + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, *offset + PA_TNC_ATTR_INFO_SIZE); + return NULL; + } + length -= PA_TNC_ATTR_HEADER_SIZE; + value_len = segmented ? reader->remaining(reader) : length; + + if (!reader->read_data(reader, value_len, &value)) + { + DBG1(DBG_TNC, "insufficient bytes for PA-TNC attribute value"); + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, *offset + PA_TNC_ATTR_INFO_SIZE); + return NULL; + } + DBG3(DBG_TNC, "%B", &value); + + if (vendor_id == PEN_RESERVED) + { + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, *offset + 1); + return NULL; + } + if (type == IETF_ATTR_RESERVED) + { + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, *offset + 4); + return NULL; + } + + /* check if the attribute type is registered */ enumerator = this->list->create_enumerator(this->list); while (enumerator->enumerate(enumerator, &entry)) { @@ -115,13 +207,71 @@ METHOD(pa_tnc_attr_manager_t, create, pa_tnc_attr_t*, { if (entry->attr_create) { - attr = entry->attr_create(type, value); + attr = entry->attr_create(type, length, value); } break; } } enumerator->destroy(enumerator); + if (!attr) + { + if (!(flags & PA_TNC_ATTR_FLAG_NOSKIP)) + { + DBG1(DBG_TNC, "skipping unsupported PA-TNC attribute"); + (*offset) += PA_TNC_ATTR_HEADER_SIZE + length; + return NULL; + } + + DBG1(DBG_TNC, "unsupported PA-TNC attribute with NOSKIP flag"); + unsupported_type = pen_type_create(vendor_id, type); + error_code = pen_type_create(PEN_IETF, PA_ERROR_ATTR_TYPE_NOT_SUPPORTED); + *error = ietf_attr_pa_tnc_error_create(error_code, msg_info); + error_attr = (ietf_attr_pa_tnc_error_t*)(*error); + error_attr->set_unsupported_attr(error_attr, flags, unsupported_type); + return NULL; + } + (*offset) += PA_TNC_ATTR_HEADER_SIZE; + + return attr; +} + +METHOD(pa_tnc_attr_manager_t, construct, pa_tnc_attr_t*, + private_pa_tnc_attr_manager_t *this, pen_t vendor_id, uint32_t type, + chunk_t value) +{ + enum_name_t *pa_attr_names; + pa_tnc_attr_t *attr = NULL; + enumerator_t *enumerator; + entry_t *entry; + + pa_attr_names = imcv_pa_tnc_attributes->get_names(imcv_pa_tnc_attributes, + vendor_id); + if (pa_attr_names) + { + DBG2(DBG_TNC, "generating PA-TNC attribute type '%N/%N' " + "0x%06x/0x%08x", pen_names, vendor_id, + pa_attr_names, type, vendor_id, type); + } + else + { + DBG2(DBG_TNC, "generating PA-TNC attribute type '%N' " + "0x%06x/0x%08x", pen_names, vendor_id, + vendor_id, type); + } + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == vendor_id) + { + if (entry->attr_create) + { + attr = entry->attr_create(type, value.len, value); + } + break; + } + } + enumerator->destroy(enumerator); return attr; } @@ -145,6 +295,7 @@ pa_tnc_attr_manager_t *pa_tnc_attr_manager_create(void) .remove_vendor = _remove_vendor, .get_names = _get_names, .create = _create, + .construct = _construct, .destroy = _destroy, }, .list = linked_list_create(), diff --git a/src/libimcv/pa_tnc/pa_tnc_attr_manager.h b/src/libimcv/pa_tnc/pa_tnc_attr_manager.h index 121be7f90..8607feede 100644 --- a/src/libimcv/pa_tnc/pa_tnc_attr_manager.h +++ b/src/libimcv/pa_tnc/pa_tnc_attr_manager.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -26,8 +26,10 @@ typedef struct pa_tnc_attr_manager_t pa_tnc_attr_manager_t; #include "pa_tnc_attr.h" #include <library.h> +#include <bio/bio_reader.h> -typedef pa_tnc_attr_t* (*pa_tnc_attr_create_t)(u_int32_t type, chunk_t value); +typedef pa_tnc_attr_t* (*pa_tnc_attr_create_t)(u_int32_t type, size_t length, + chunk_t value); /** * Manages PA-TNC attributes for arbitrary PENs @@ -61,15 +63,29 @@ struct pa_tnc_attr_manager_t { enum_name_t* (*get_names)(pa_tnc_attr_manager_t *this, pen_t vendor_id); /** - * Create a PA-TNC attribute object from data for a given vendor ID and type + * Create and pre-parse a PA-TNC attribute object from data + * + * @param reader PA-TNC attribute as encoded data + * @param segmented TRUE if attribute is segmented + * @param offset Offset in bytes where an error has been found + * @param msg_info Message info added to an error attribute + * @param error Error attribute if an error occurred + * @return PA-TNC attribute object if supported, NULL else + */ + pa_tnc_attr_t* (*create)(pa_tnc_attr_manager_t *this, bio_reader_t *reader, + bool segmented, uint32_t *offset, chunk_t msg_info, + pa_tnc_attr_t **error); + + /** + * Generically construct a PA-TNC attribute from type and data * * @param vendor_id Private Enterprise Number (PEN) * @param type PA-TNC attribute type * @param value PA-TNC attribute value as encoded data * @return PA-TNC attribute object if supported, NULL else */ - pa_tnc_attr_t* (*create)(pa_tnc_attr_manager_t *this, pen_t vendor_id, - u_int32_t type, chunk_t value); + pa_tnc_attr_t* (*construct)(pa_tnc_attr_manager_t *this, pen_t vendor_id, + uint32_t type, chunk_t value); /** * Destroys a pa_tnc_attr_manager_t object. diff --git a/src/libimcv/pa_tnc/pa_tnc_msg.c b/src/libimcv/pa_tnc/pa_tnc_msg.c index 77d383b93..d9b441707 100644 --- a/src/libimcv/pa_tnc/pa_tnc_msg.c +++ b/src/libimcv/pa_tnc/pa_tnc_msg.c @@ -40,26 +40,6 @@ typedef struct private_pa_tnc_msg_t private_pa_tnc_msg_t; #define PA_TNC_RESERVED 0x000000 /** - * PA-TNC attribute - * - * 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Flags | PA-TNC Attribute Vendor ID | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | PA-TNC Attribute Type | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | PA-TNC Attribute Length | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Attribute Value (Variable Length) | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - */ - -#define PA_TNC_ATTR_FLAG_NONE 0x00 -#define PA_TNC_ATTR_FLAG_NOSKIP (1<<7) -#define PA_TNC_ATTR_INFO_SIZE 8 - -/** * Private data of a pa_tnc_msg_t object. * */ @@ -96,6 +76,11 @@ struct private_pa_tnc_msg_t { size_t max_msg_len; /** + * TRUE if attribute was extracted from data + */ + bool from_data; + + /** * Encoded message */ chunk_t encoding; @@ -113,17 +98,19 @@ METHOD(pa_tnc_msg_t, add_attribute, bool, chunk_t attr_value; size_t attr_len; - attr->build(attr); - attr_value = attr->get_value(attr); - attr_len = PA_TNC_ATTR_HEADER_SIZE + attr_value.len; - - if (this->max_msg_len && this->msg_len + attr_len > this->max_msg_len) + if (!this->from_data) { - /* attribute just does not fit into this message */ - return FALSE; - } - this->msg_len += attr_len; + attr->build(attr); + attr_value = attr->get_value(attr); + attr_len = PA_TNC_ATTR_HEADER_SIZE + attr_value.len; + if (this->max_msg_len && this->msg_len + attr_len > this->max_msg_len) + { + /* attribute just does not fit into this message */ + return FALSE; + } + this->msg_len += attr_len; + } this->attributes->insert_last(this->attributes, attr); return TRUE; } @@ -201,7 +188,9 @@ METHOD(pa_tnc_msg_t, process, status_t, private_pa_tnc_msg_t *this) { bio_reader_t *reader; - pa_tnc_attr_t *error; + pa_tnc_attr_t *attr, *error; + pen_type_t attr_type; + chunk_t attr_value; uint8_t version; uint32_t reserved, offset, attr_offset; pen_type_t error_code = { PEN_IETF, PA_ERROR_INVALID_PARAMETER }; @@ -231,119 +220,38 @@ METHOD(pa_tnc_msg_t, process, status_t, offset = PA_TNC_HEADER_SIZE; /* pre-process PA-TNC attributes */ - while (reader->remaining(reader) >= PA_TNC_ATTR_HEADER_SIZE) + while (reader->remaining(reader) > 0) { - pen_t vendor_id; - uint8_t flags; - uint32_t type, length; - chunk_t value, attr_info; - pa_tnc_attr_t *attr; - enum_name_t *pa_attr_names; - ietf_attr_pa_tnc_error_t *error_attr; - - attr_info = reader->peek(reader); - attr_info.len = PA_TNC_ATTR_INFO_SIZE; - reader->read_uint8 (reader, &flags); - reader->read_uint24(reader, &vendor_id); - reader->read_uint32(reader, &type); - reader->read_uint32(reader, &length); - - pa_attr_names = imcv_pa_tnc_attributes->get_names(imcv_pa_tnc_attributes, - vendor_id); - if (pa_attr_names) - { - DBG2(DBG_TNC, "processing PA-TNC attribute type '%N/%N' " - "0x%06x/0x%08x", pen_names, vendor_id, - pa_attr_names, type, vendor_id, type); - } - else - { - DBG2(DBG_TNC, "processing PA-TNC attribute type '%N' " - "0x%06x/0x%08x", pen_names, vendor_id, - vendor_id, type); - } - - if (length < PA_TNC_ATTR_HEADER_SIZE) - { - DBG1(DBG_TNC, "%u bytes too small for PA-TNC attribute length", - length); - error = ietf_attr_pa_tnc_error_create_with_offset(error_code, - this->encoding, offset + PA_TNC_ATTR_INFO_SIZE); - goto err; - } - - if (!reader->read_data(reader, length - PA_TNC_ATTR_HEADER_SIZE, &value)) - { - DBG1(DBG_TNC, "insufficient bytes for PA-TNC attribute value"); - error = ietf_attr_pa_tnc_error_create_with_offset(error_code, - this->encoding, offset + PA_TNC_ATTR_INFO_SIZE); - goto err; - } - DBG3(DBG_TNC, "%B", &value); - - if (vendor_id == PEN_RESERVED) - { - error = ietf_attr_pa_tnc_error_create_with_offset(error_code, - this->encoding, offset + 1); - goto err; - } - if (type == IETF_ATTR_RESERVED) - { - error = ietf_attr_pa_tnc_error_create_with_offset(error_code, - this->encoding, offset + 4); - goto err; - } attr = imcv_pa_tnc_attributes->create(imcv_pa_tnc_attributes, - vendor_id, type, value); + reader, FALSE, &offset, this->encoding, &error); if (!attr) { - if (flags & PA_TNC_ATTR_FLAG_NOSKIP) - { - DBG1(DBG_TNC, "unsupported PA-TNC attribute with NOSKIP flag"); - error_code = pen_type_create(PEN_IETF, - PA_ERROR_ATTR_TYPE_NOT_SUPPORTED); - error = ietf_attr_pa_tnc_error_create(error_code, - this->encoding); - error_attr = (ietf_attr_pa_tnc_error_t*)error; - error_attr->set_attr_info(error_attr, attr_info); - goto err; - } - else - { - DBG1(DBG_TNC, "skipping unsupported PA-TNC attribute"); - offset += length; - continue; - } + goto err; } + attr_value = attr->get_value(attr); + attr_type = attr->get_type(attr); if (attr->process(attr, &attr_offset) != SUCCESS) { attr->destroy(attr); - if (vendor_id == PEN_IETF && type == IETF_ATTR_PA_TNC_ERROR) + + if (attr_type.vendor_id == PEN_IETF && + attr_type.type == IETF_ATTR_PA_TNC_ERROR) { - /* error while processing a PA-TNC error attribute - abort */ - reader->destroy(reader); - return FAILED; + /* suppress error while processing a PA-TNC error attribute */ + offset += attr_value.len; + continue; } - error_code = pen_type_create(PEN_IETF, - PA_ERROR_INVALID_PARAMETER); + error_code = pen_type_create(PEN_IETF, PA_ERROR_INVALID_PARAMETER); error = ietf_attr_pa_tnc_error_create_with_offset(error_code, - this->encoding, - offset + PA_TNC_ATTR_HEADER_SIZE + attr_offset); + this->encoding, offset + attr_offset); goto err; } + offset += attr_value.len; this->attributes->insert_last(this->attributes, attr); - offset += length; } - - if (reader->remaining(reader) == 0) - { - reader->destroy(reader); - return SUCCESS; - } - DBG1(DBG_TNC, "insufficient bytes for PA-TNC attribute header"); - error = ietf_attr_pa_tnc_error_create_with_offset(error_code, - this->encoding, offset); + reader->destroy(reader); + return SUCCESS; err: reader->destroy(reader); @@ -352,24 +260,27 @@ err: } METHOD(pa_tnc_msg_t, process_ietf_std_errors, bool, - private_pa_tnc_msg_t *this) + private_pa_tnc_msg_t *this, linked_list_t *non_fatal_types) { - enumerator_t *enumerator; + enumerator_t *e1, *e2; + enum_name_t *pa_attr_names; pa_tnc_attr_t *attr; - pen_type_t type; + pen_type_t type, unsupported_type; + uint8_t flags; bool fatal_error = FALSE; - enumerator = this->attributes->create_enumerator(this->attributes); - while (enumerator->enumerate(enumerator, &attr)) + e1 = this->attributes->create_enumerator(this->attributes); + while (e1->enumerate(e1, &attr)) { type = attr->get_type(attr); if (type.vendor_id == PEN_IETF && type.type == IETF_ATTR_PA_TNC_ERROR) { ietf_attr_pa_tnc_error_t *error_attr; - pen_type_t error_code; - chunk_t msg_info, attr_info; + pen_type_t error_code, *non_fatal_type; + chunk_t msg_info; uint32_t offset; + bool fatal_current_error = TRUE; error_attr = (ietf_attr_pa_tnc_error_t*)attr; error_code = error_attr->get_error_code(error_attr); @@ -391,16 +302,49 @@ METHOD(pa_tnc_msg_t, process_ietf_std_errors, bool, DBG1(DBG_TNC, " occurred at offset of %u bytes", offset); break; case PA_ERROR_ATTR_TYPE_NOT_SUPPORTED: - attr_info = error_attr->get_attr_info(error_attr); - DBG1(DBG_TNC, " unsupported attribute %#B", &attr_info); + unsupported_type = + error_attr->get_unsupported_attr(error_attr, &flags); + pa_attr_names = + imcv_pa_tnc_attributes->get_names(imcv_pa_tnc_attributes, + unsupported_type.vendor_id); + if (pa_attr_names) + { + DBG1(DBG_TNC, " unsupported attribute type '%N/%N' " + "0x%06x/0x%08x, flags 0x%02x", + pen_names, unsupported_type.vendor_id, + pa_attr_names, unsupported_type.type, + unsupported_type.vendor_id, unsupported_type.type, + flags); + } + else + { + DBG1(DBG_TNC, " unsupported attribute type '%N' " + "0x%06x/0x%08x, flags 0x%02x", + pen_names, unsupported_type.vendor_id, + unsupported_type.vendor_id, unsupported_type.type, + flags); + } + e2 = non_fatal_types->create_enumerator(non_fatal_types); + while (e2->enumerate(e2, &non_fatal_type)) + { + if (pen_type_equals(unsupported_type, *non_fatal_type)) + { + fatal_current_error = FALSE; + break; + } + } + e2->destroy(e2); break; default: break; } - fatal_error = TRUE; + if (fatal_current_error) + { + fatal_error = TRUE; + } } } - enumerator->destroy(enumerator); + e1->destroy(e1); return fatal_error; } @@ -476,6 +420,7 @@ pa_tnc_msg_t *pa_tnc_msg_create_from_data(chunk_t data) .encoding = chunk_clone(data), .attributes = linked_list_create(), .errors = linked_list_create(), + .from_data = TRUE, ); return &this->public; diff --git a/src/libimcv/pa_tnc/pa_tnc_msg.h b/src/libimcv/pa_tnc/pa_tnc_msg.h index 84814b92b..57ff1a04c 100644 --- a/src/libimcv/pa_tnc/pa_tnc_msg.h +++ b/src/libimcv/pa_tnc/pa_tnc_msg.h @@ -68,9 +68,11 @@ struct pa_tnc_msg_t { /** * Process all IETF standard error PA-TNC attributes * - * @return TRUE if at least one error attribute processed + * @param non_fatal_types list of non fatal unsupported attribute types + * @return TRUE if at least one fatal error processed */ - bool (*process_ietf_std_errors)(pa_tnc_msg_t *this); + bool (*process_ietf_std_errors)(pa_tnc_msg_t *this, + linked_list_t *non_fatal_types); /** * Enumerates over all PA-TNC attributes diff --git a/src/libimcv/plugins/imc_attestation/Makefile.am b/src/libimcv/plugins/imc_attestation/Makefile.am new file mode 100644 index 000000000..e7b1f1ce1 --- /dev/null +++ b/src/libimcv/plugins/imc_attestation/Makefile.am @@ -0,0 +1,18 @@ +AM_CPPFLAGS = \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libtncif \ + -I$(top_srcdir)/src/libimcv + +AM_CFLAGS = \ + $(PLUGIN_CFLAGS) + +imcv_LTLIBRARIES = imc-attestation.la + +imc_attestation_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la + +imc_attestation_la_SOURCES = imc_attestation.c \ + imc_attestation_state.h imc_attestation_state.c \ + imc_attestation_process.h imc_attestation_process.c + +imc_attestation_la_LDFLAGS = -module -avoid-version -no-undefined diff --git a/src/libimcv/plugins/imc_attestation/Makefile.in b/src/libimcv/plugins/imc_attestation/Makefile.in new file mode 100644 index 000000000..3c5017f32 --- /dev/null +++ b/src/libimcv/plugins/imc_attestation/Makefile.in @@ -0,0 +1,765 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imc_attestation_state.h" +#include "imc_attestation_process.h" + +#include <imc/imc_agent.h> +#include <imc/imc_msg.h> +#include <ietf/ietf_attr.h> +#include <ietf/ietf_attr_pa_tnc_error.h> +#include <ietf/ietf_attr_product_info.h> +#include <ietf/ietf_attr_string_version.h> +#include <ietf/ietf_attr_assess_result.h> +#include <tcg/pts/tcg_pts_attr_proto_caps.h> +#include <tcg/pts/tcg_pts_attr_meas_algo.h> +#include <os_info/os_info.h> +#include <pts/pts_error.h> + +#include <tncif_pa_subtypes.h> + +#include <pen/pen.h> +#include <utils/debug.h> +#include <collections/linked_list.h> + +/* IMC definitions */ + +static const char imc_name[] = "Attestation"; + +static pen_type_t msg_types[] = { + { PEN_TCG, PA_SUBTYPE_TCG_PTS } +}; + +static imc_agent_t *imc_attestation; + +/** + * Supported PTS measurement algorithms + */ +static pts_meas_algorithms_t supported_algorithms = PTS_MEAS_ALGO_NONE; + +/** + * Supported PTS Diffie Hellman Groups + */ +static pts_dh_group_t supported_dh_groups = PTS_DH_GROUP_NONE; + +/** + * see section 3.8.1 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_Initialize(TNC_IMCID imc_id, + TNC_Version min_version, + TNC_Version max_version, + TNC_Version *actual_version) +{ + bool mandatory_dh_groups; + + if (imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name); + return TNC_RESULT_ALREADY_INITIALIZED; + } + imc_attestation = imc_agent_create(imc_name, msg_types, countof(msg_types), + imc_id, actual_version); + if (!imc_attestation) + { + return TNC_RESULT_FATAL; + } + + mandatory_dh_groups = lib->settings->get_bool(lib->settings, + "%s.plugins.imc-attestation.mandatory_dh_groups", TRUE, lib->ns); + + if (!pts_meas_algo_probe(&supported_algorithms) || + !pts_dh_group_probe(&supported_dh_groups, mandatory_dh_groups)) + { + imc_attestation->destroy(imc_attestation); + imc_attestation = NULL; + return TNC_RESULT_FATAL; + } + + if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1) + { + DBG1(DBG_IMC, "no common IF-IMC version"); + return TNC_RESULT_NO_COMMON_VERSION; + } + return TNC_RESULT_SUCCESS; +} + +/** + * see section 3.8.2 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id, + TNC_ConnectionID connection_id, + TNC_ConnectionState new_state) +{ + imc_state_t *state; + + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + switch (new_state) + { + case TNC_CONNECTION_STATE_CREATE: + state = imc_attestation_state_create(connection_id); + return imc_attestation->create_state(imc_attestation, state); + case TNC_CONNECTION_STATE_HANDSHAKE: + if (imc_attestation->change_state(imc_attestation, connection_id, + new_state, &state) != TNC_RESULT_SUCCESS) + { + return TNC_RESULT_FATAL; + } + state->set_result(state, imc_id, + TNC_IMV_EVALUATION_RESULT_DONT_KNOW); + return TNC_RESULT_SUCCESS; + case TNC_CONNECTION_STATE_DELETE: + return imc_attestation->delete_state(imc_attestation, connection_id); + case TNC_CONNECTION_STATE_ACCESS_ISOLATED: + case TNC_CONNECTION_STATE_ACCESS_NONE: + default: + return imc_attestation->change_state(imc_attestation, connection_id, + new_state, NULL); + } +} + + +/** + * see section 3.8.3 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_BeginHandshake(TNC_IMCID imc_id, + TNC_ConnectionID connection_id) +{ + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + + return TNC_RESULT_SUCCESS; +} + +static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) +{ + imc_msg_t *out_msg; + imc_attestation_state_t *attestation_state; + enumerator_t *enumerator; + pa_tnc_attr_t *attr; + pen_type_t type; + TNC_Result result; + bool fatal_error = FALSE; + + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imc_msg_create_as_reply(in_msg); + + /* parse received PA-TNC message and handle local and remote errors */ + result = in_msg->receive(in_msg, out_msg, &fatal_error); + if (result != TNC_RESULT_SUCCESS) + { + out_msg->destroy(out_msg); + return result; + } + + /* analyze PA-TNC attributes */ + enumerator = in_msg->create_attribute_enumerator(in_msg); + while (enumerator->enumerate(enumerator, &attr)) + { + type = attr->get_type(attr); + + if (type.vendor_id == PEN_IETF) + { + if (type.type == IETF_ATTR_PA_TNC_ERROR) + { + ietf_attr_pa_tnc_error_t *error_attr; + pen_type_t error_code; + chunk_t msg_info; + + error_attr = (ietf_attr_pa_tnc_error_t*)attr; + error_code = error_attr->get_error_code(error_attr); + + if (error_code.vendor_id == PEN_TCG) + { + msg_info = error_attr->get_msg_info(error_attr); + + DBG1(DBG_IMC, "received TCG-PTS error '%N'", + pts_error_code_names, error_code.type); + DBG1(DBG_IMC, "error information: %B", &msg_info); + + result = TNC_RESULT_FATAL; + } + } + } + else if (type.vendor_id == PEN_TCG) + { + attestation_state = (imc_attestation_state_t*)state; + + if (!imc_attestation_process(attr, out_msg, attestation_state, + supported_algorithms, supported_dh_groups)) + { + result = TNC_RESULT_FATAL; + break; + } + } + } + enumerator->destroy(enumerator); + + if (result == TNC_RESULT_SUCCESS) + { + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); + } + out_msg->destroy(out_msg); + + return result; +} + +/** + * see section 3.8.4 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_ReceiveMessage(TNC_IMCID imc_id, + TNC_ConnectionID connection_id, + TNC_BufferReference msg, + TNC_UInt32 msg_len, + TNC_MessageType msg_type) +{ + imc_state_t *state; + imc_msg_t *in_msg; + TNC_Result result; + + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + if (!imc_attestation->get_state(imc_attestation, connection_id, &state)) + { + return TNC_RESULT_FATAL; + } + + in_msg = imc_msg_create_from_data(imc_attestation, state, connection_id, + msg_type, chunk_create(msg, msg_len)); + result = receive_message(state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +/** + * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id, + TNC_ConnectionID connection_id, + TNC_UInt32 msg_flags, + TNC_BufferReference msg, + TNC_UInt32 msg_len, + TNC_VendorID msg_vid, + TNC_MessageSubtype msg_subtype, + TNC_UInt32 src_imv_id, + TNC_UInt32 dst_imc_id) +{ + imc_state_t *state; + imc_msg_t *in_msg; + TNC_Result result; + + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + if (!imc_attestation->get_state(imc_attestation, connection_id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imc_msg_create_from_long_data(imc_attestation, state, connection_id, + src_imv_id, dst_imc_id, msg_vid, msg_subtype, + chunk_create(msg, msg_len)); + result =receive_message(state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +/** + * see section 3.8.7 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_BatchEnding(TNC_IMCID imc_id, + TNC_ConnectionID connection_id) +{ + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + return TNC_RESULT_SUCCESS; +} + +/** + * see section 3.8.8 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_Terminate(TNC_IMCID imc_id) +{ + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + imc_attestation->destroy(imc_attestation); + imc_attestation = NULL; + + return TNC_RESULT_SUCCESS; +} + +/** + * see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_API TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id, + TNC_TNCC_BindFunctionPointer bind_function) +{ + if (!imc_attestation) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + return imc_attestation->bind_functions(imc_attestation, bind_function); +} diff --git a/src/libimcv/plugins/imc_attestation/imc_attestation_process.c b/src/libimcv/plugins/imc_attestation/imc_attestation_process.c new file mode 100644 index 000000000..2fc2998e1 --- /dev/null +++ b/src/libimcv/plugins/imc_attestation/imc_attestation_process.c @@ -0,0 +1,480 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE + +#include <stdio.h> +/* for isdigit */ +#include <ctype.h> + +#include "imc_attestation_process.h" + +#include <ietf/ietf_attr_pa_tnc_error.h> + +#include <pts/pts.h> + +#include <tcg/pts/tcg_pts_attr_proto_caps.h> +#include <tcg/pts/tcg_pts_attr_meas_algo.h> +#include <tcg/pts/tcg_pts_attr_dh_nonce_params_req.h> +#include <tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h> +#include <tcg/pts/tcg_pts_attr_dh_nonce_finish.h> +#include <tcg/pts/tcg_pts_attr_get_tpm_version_info.h> +#include <tcg/pts/tcg_pts_attr_tpm_version_info.h> +#include <tcg/pts/tcg_pts_attr_get_aik.h> +#include <tcg/pts/tcg_pts_attr_aik.h> +#include <tcg/pts/tcg_pts_attr_req_func_comp_evid.h> +#include <tcg/pts/tcg_pts_attr_gen_attest_evid.h> +#include <tcg/pts/tcg_pts_attr_simple_comp_evid.h> +#include <tcg/pts/tcg_pts_attr_simple_evid_final.h> +#include <tcg/pts/tcg_pts_attr_req_file_meas.h> +#include <tcg/pts/tcg_pts_attr_file_meas.h> +#include <tcg/pts/tcg_pts_attr_req_file_meta.h> +#include <tcg/pts/tcg_pts_attr_unix_file_meta.h> + +#include <utils/debug.h> +#include <utils/lexparser.h> + +#define DEFAULT_NONCE_LEN 20 + +bool imc_attestation_process(pa_tnc_attr_t *attr, imc_msg_t *msg, + imc_attestation_state_t *attestation_state, + pts_meas_algorithms_t supported_algorithms, + pts_dh_group_t supported_dh_groups) +{ + chunk_t attr_info; + pts_t *pts; + pts_error_code_t pts_error; + pen_type_t attr_type; + bool valid_path; + + pts = attestation_state->get_pts(attestation_state); + attr_type = attr->get_type(attr); + + switch (attr_type.type) + { + case TCG_PTS_REQ_PROTO_CAPS: + { + tcg_pts_attr_proto_caps_t *attr_cast; + pts_proto_caps_flag_t imc_caps, imv_caps; + + attr_cast = (tcg_pts_attr_proto_caps_t*)attr; + imv_caps = attr_cast->get_flags(attr_cast); + imc_caps = pts->get_proto_caps(pts); + pts->set_proto_caps(pts, imc_caps & imv_caps); + + /* Send PTS Protocol Capabilities attribute */ + attr = tcg_pts_attr_proto_caps_create(imc_caps & imv_caps, FALSE); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_MEAS_ALGO: + { + tcg_pts_attr_meas_algo_t *attr_cast; + pts_meas_algorithms_t offered_algorithms, selected_algorithm; + + attr_cast = (tcg_pts_attr_meas_algo_t*)attr; + offered_algorithms = attr_cast->get_algorithms(attr_cast); + selected_algorithm = pts_meas_algo_select(supported_algorithms, + offered_algorithms); + if (selected_algorithm == PTS_MEAS_ALGO_NONE) + { + attr = pts_hash_alg_error_create(supported_algorithms); + msg->add_attribute(msg, attr); + break; + } + + /* Send Measurement Algorithm Selection attribute */ + pts->set_meas_algorithm(pts, selected_algorithm); + attr = tcg_pts_attr_meas_algo_create(selected_algorithm, TRUE); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_DH_NONCE_PARAMS_REQ: + { + tcg_pts_attr_dh_nonce_params_req_t *attr_cast; + pts_dh_group_t offered_dh_groups, selected_dh_group; + chunk_t responder_value, responder_nonce; + int nonce_len, min_nonce_len; + + nonce_len = lib->settings->get_int(lib->settings, + "%s.plugins.imc-attestation.nonce_len", + DEFAULT_NONCE_LEN, lib->ns); + + attr_cast = (tcg_pts_attr_dh_nonce_params_req_t*)attr; + min_nonce_len = attr_cast->get_min_nonce_len(attr_cast); + if (nonce_len < PTS_MIN_NONCE_LEN || + (min_nonce_len > 0 && nonce_len < min_nonce_len)) + { + attr = pts_dh_nonce_error_create(nonce_len, PTS_MAX_NONCE_LEN); + msg->add_attribute(msg, attr); + break; + } + + offered_dh_groups = attr_cast->get_dh_groups(attr_cast); + selected_dh_group = pts_dh_group_select(supported_dh_groups, + offered_dh_groups); + if (selected_dh_group == PTS_DH_GROUP_NONE) + { + attr = pts_dh_group_error_create(supported_dh_groups); + msg->add_attribute(msg, attr); + break; + } + + /* Create own DH factor and nonce */ + if (!pts->create_dh_nonce(pts, selected_dh_group, nonce_len)) + { + return FALSE; + } + pts->get_my_public_value(pts, &responder_value, &responder_nonce); + + /* Send DH Nonce Parameters Response attribute */ + attr = tcg_pts_attr_dh_nonce_params_resp_create(selected_dh_group, + supported_algorithms, responder_nonce, responder_value); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_DH_NONCE_FINISH: + { + tcg_pts_attr_dh_nonce_finish_t *attr_cast; + pts_meas_algorithms_t selected_algorithm; + chunk_t initiator_nonce, initiator_value; + int nonce_len; + + attr_cast = (tcg_pts_attr_dh_nonce_finish_t*)attr; + selected_algorithm = attr_cast->get_hash_algo(attr_cast); + if (!(selected_algorithm & supported_algorithms)) + { + DBG1(DBG_IMC, "PTS-IMV selected unsupported DH hash algorithm"); + return FALSE; + } + pts->set_dh_hash_algorithm(pts, selected_algorithm); + + initiator_value = attr_cast->get_initiator_value(attr_cast); + initiator_nonce = attr_cast->get_initiator_nonce(attr_cast); + + nonce_len = lib->settings->get_int(lib->settings, + "%s.plugins.imc-attestation.nonce_len", + DEFAULT_NONCE_LEN, lib->ns); + if (nonce_len != initiator_nonce.len) + { + DBG1(DBG_IMC, "initiator and responder DH nonces " + "have differing lengths"); + return FALSE; + } + + pts->set_peer_public_value(pts, initiator_value, initiator_nonce); + if (!pts->calculate_secret(pts)) + { + return FALSE; + } + break; + } + case TCG_PTS_GET_TPM_VERSION_INFO: + { + chunk_t tpm_version_info, attr_info; + pen_type_t error_code = { PEN_TCG, TCG_PTS_TPM_VERS_NOT_SUPPORTED }; + + if (!pts->get_tpm_version_info(pts, &tpm_version_info)) + { + attr_info = attr->get_value(attr); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + + /* Send TPM Version Info attribute */ + attr = tcg_pts_attr_tpm_version_info_create(tpm_version_info); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_GET_AIK: + { + certificate_t *aik; + + aik = pts->get_aik(pts); + if (!aik) + { + DBG1(DBG_IMC, "no AIK certificate or public key available"); + break; + } + + /* Send AIK attribute */ + attr = tcg_pts_attr_aik_create(aik); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_REQ_FILE_MEAS: + { + tcg_pts_attr_req_file_meas_t *attr_cast; + char *pathname; + u_int16_t request_id; + bool is_directory; + u_int32_t delimiter; + pts_file_meas_t *measurements; + pen_type_t error_code; + + attr_info = attr->get_value(attr); + attr_cast = (tcg_pts_attr_req_file_meas_t*)attr; + is_directory = attr_cast->get_directory_flag(attr_cast); + request_id = attr_cast->get_request_id(attr_cast); + delimiter = attr_cast->get_delimiter(attr_cast); + pathname = attr_cast->get_pathname(attr_cast); + valid_path = pts->is_path_valid(pts, pathname, &pts_error); + + if (valid_path && pts_error) + { + error_code = pen_type_create(PEN_TCG, pts_error); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + else if (!valid_path) + { + break; + } + + if (delimiter != SOLIDUS_UTF && delimiter != REVERSE_SOLIDUS_UTF) + { + error_code = pen_type_create(PEN_TCG, + TCG_PTS_INVALID_DELIMITER); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + + /* Do PTS File Measurements and send them to PTS-IMV */ + DBG2(DBG_IMC, "measurement request %d for %s '%s'", + request_id, is_directory ? "directory" : "file", + pathname); + measurements = pts_file_meas_create_from_path(request_id, + pathname, is_directory, TRUE, + pts->get_meas_algorithm(pts)); + if (!measurements) + { + /* TODO handle error codes from measurements */ + return FALSE; + } + attr = tcg_pts_attr_file_meas_create(measurements); + attr->set_noskip_flag(attr, TRUE); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_REQ_FILE_META: + { + tcg_pts_attr_req_file_meta_t *attr_cast; + char *pathname; + bool is_directory; + u_int8_t delimiter; + pts_file_meta_t *metadata; + pen_type_t error_code; + + attr_info = attr->get_value(attr); + attr_cast = (tcg_pts_attr_req_file_meta_t*)attr; + is_directory = attr_cast->get_directory_flag(attr_cast); + delimiter = attr_cast->get_delimiter(attr_cast); + pathname = attr_cast->get_pathname(attr_cast); + + valid_path = pts->is_path_valid(pts, pathname, &pts_error); + if (valid_path && pts_error) + { + error_code = pen_type_create(PEN_TCG, pts_error); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + else if (!valid_path) + { + break; + } + if (delimiter != SOLIDUS_UTF && delimiter != REVERSE_SOLIDUS_UTF) + { + error_code = pen_type_create(PEN_TCG, + TCG_PTS_INVALID_DELIMITER); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + /* Get File Metadata and send them to PTS-IMV */ + DBG2(DBG_IMC, "metadata request for %s '%s'", + is_directory ? "directory" : "file", + pathname); + metadata = pts->get_metadata(pts, pathname, is_directory); + + if (!metadata) + { + /* TODO handle error codes from measurements */ + return FALSE; + } + attr = tcg_pts_attr_unix_file_meta_create(metadata); + attr->set_noskip_flag(attr, TRUE); + msg->add_attribute(msg, attr); + break; + } + case TCG_PTS_REQ_FUNC_COMP_EVID: + { + tcg_pts_attr_req_func_comp_evid_t *attr_cast; + pts_proto_caps_flag_t negotiated_caps; + pts_comp_func_name_t *name; + pts_comp_evidence_t *evid; + pts_component_t *comp; + pen_type_t error_code; + u_int32_t depth; + u_int8_t flags; + status_t status; + enumerator_t *e; + + attr_info = attr->get_value(attr); + attr_cast = (tcg_pts_attr_req_func_comp_evid_t*)attr; + + DBG1(DBG_IMC, "evidence requested for %d functional components", + attr_cast->get_count(attr_cast)); + + e = attr_cast->create_enumerator(attr_cast); + while (e->enumerate(e, &flags, &depth, &name)) + { + name->log(name, "* "); + negotiated_caps = pts->get_proto_caps(pts); + + if (flags & PTS_REQ_FUNC_COMP_EVID_TTC) + { + error_code = pen_type_create(PEN_TCG, + TCG_PTS_UNABLE_DET_TTC); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + if (flags & PTS_REQ_FUNC_COMP_EVID_VER && + !(negotiated_caps & PTS_PROTO_CAPS_V)) + { + error_code = pen_type_create(PEN_TCG, + TCG_PTS_UNABLE_LOCAL_VAL); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + if (flags & PTS_REQ_FUNC_COMP_EVID_CURR && + !(negotiated_caps & PTS_PROTO_CAPS_C)) + { + error_code = pen_type_create(PEN_TCG, + TCG_PTS_UNABLE_CUR_EVID); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + if (flags & PTS_REQ_FUNC_COMP_EVID_PCR && + !(negotiated_caps & PTS_PROTO_CAPS_T)) + { + error_code = pen_type_create(PEN_TCG, + TCG_PTS_UNABLE_DET_PCR); + attr = ietf_attr_pa_tnc_error_create(error_code, attr_info); + msg->add_attribute(msg, attr); + break; + } + if (depth > 0) + { + DBG1(DBG_IMC, "the Attestation IMC currently does not " + "support sub component measurements"); + return FALSE; + } + comp = attestation_state->create_component(attestation_state, + name, depth); + if (!comp) + { + DBG2(DBG_IMC, " not registered: no evidence provided"); + continue; + } + + /* do the component evidence measurement[s] and cache them */ + do + { + status = comp->measure(comp, name->get_qualifier(name), + pts, &evid); + if (status == FAILED) + { + break; + } + attestation_state->add_evidence(attestation_state, evid); + } + while (status == NEED_MORE); + } + e->destroy(e); + break; + } + case TCG_PTS_GEN_ATTEST_EVID: + { + pts_simple_evid_final_flag_t flags; + pts_meas_algorithms_t comp_hash_algorithm; + pts_comp_evidence_t *evid; + chunk_t pcr_composite, quote_sig; + bool use_quote2; + + /* Send cached Component Evidence entries */ + while (attestation_state->next_evidence(attestation_state, &evid)) + { + attr = tcg_pts_attr_simple_comp_evid_create(evid); + msg->add_attribute(msg, attr); + } + + use_quote2 = lib->settings->get_bool(lib->settings, + "%s.plugins.imc-attestation.use_quote2", TRUE, + lib->ns); + if (!pts->quote_tpm(pts, use_quote2, &pcr_composite, "e_sig)) + { + DBG1(DBG_IMC, "error occurred during TPM quote operation"); + return FALSE; + } + + /* Send Simple Evidence Final attribute */ + flags = use_quote2 ? PTS_SIMPLE_EVID_FINAL_QUOTE_INFO2 : + PTS_SIMPLE_EVID_FINAL_QUOTE_INFO; + comp_hash_algorithm = PTS_MEAS_ALGO_SHA1; + + attr = tcg_pts_attr_simple_evid_final_create(flags, + comp_hash_algorithm, pcr_composite, quote_sig); + msg->add_attribute(msg, attr); + break; + } + case TCG_SEG_MAX_ATTR_SIZE_REQ: + case TCG_SEG_NEXT_SEG_REQ: + break; + + /* TODO: Not implemented yet */ + case TCG_PTS_REQ_INTEG_MEAS_LOG: + /* Attributes using XML */ + case TCG_PTS_REQ_TEMPL_REF_MANI_SET_META: + case TCG_PTS_UPDATE_TEMPL_REF_MANI: + /* On Windows only*/ + case TCG_PTS_REQ_REGISTRY_VALUE: + /* Received on IMV side only*/ + case TCG_PTS_PROTO_CAPS: + case TCG_PTS_DH_NONCE_PARAMS_RESP: + case TCG_PTS_MEAS_ALGO_SELECTION: + case TCG_PTS_TPM_VERSION_INFO: + case TCG_PTS_TEMPL_REF_MANI_SET_META: + case TCG_PTS_AIK: + case TCG_PTS_SIMPLE_COMP_EVID: + case TCG_PTS_SIMPLE_EVID_FINAL: + case TCG_PTS_VERIFICATION_RESULT: + case TCG_PTS_INTEG_REPORT: + case TCG_PTS_UNIX_FILE_META: + case TCG_PTS_FILE_MEAS: + case TCG_PTS_INTEG_MEAS_LOG: + default: + DBG1(DBG_IMC, "received unsupported attribute '%N/%N'", + pen_names, PEN_TCG, tcg_attr_names, attr_type.type); + break; + } + return TRUE; +} diff --git a/src/libimcv/plugins/imc_attestation/imc_attestation_process.h b/src/libimcv/plugins/imc_attestation/imc_attestation_process.h new file mode 100644 index 000000000..a2f1b4e3c --- /dev/null +++ b/src/libimcv/plugins/imc_attestation/imc_attestation_process.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imc_attestation_process_t imc_attestation_process + * @{ @ingroup imc_attestation + */ + +#ifndef IMC_ATTESTATION_PROCESS_H_ +#define IMC_ATTESTATION_PROCESS_H_ + +#include "imc_attestation_state.h" + +#include <library.h> + +#include <imc/imc_msg.h> +#include <pa_tnc/pa_tnc_attr.h> + +#include <pts/pts_dh_group.h> +#include <pts/pts_meas_algo.h> + +/** + * Process a TCG PTS attribute + * + * @param attr PA-TNC attribute to be processed + * @param msg outbound PA-TNC message to be assembled + * @param attestation_state attestation state of a given connection + * @param supported_algorithms supported PTS measurement algorithms + * @param supported_dh_groups supported DH groups + * @return TRUE if successful + */ +bool imc_attestation_process(pa_tnc_attr_t *attr, imc_msg_t *msg, + imc_attestation_state_t *attestation_state, + pts_meas_algorithms_t supported_algorithms, + pts_dh_group_t supported_dh_groups); + +#endif /** IMC_ATTESTATION_PROCESS_H_ @}*/ diff --git a/src/libimcv/plugins/imc_attestation/imc_attestation_state.c b/src/libimcv/plugins/imc_attestation/imc_attestation_state.c new file mode 100644 index 000000000..0b594cb10 --- /dev/null +++ b/src/libimcv/plugins/imc_attestation/imc_attestation_state.c @@ -0,0 +1,260 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imc_attestation_state.h" + +#include <imcv.h> + +#include <tncif_names.h> + +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_imc_attestation_state_t private_imc_attestation_state_t; +typedef struct func_comp_t func_comp_t; + +/** + * Private data of an imc_attestation_state_t object. + */ +struct private_imc_attestation_state_t { + + /** + * Public members of imc_attestation_state_t + */ + imc_attestation_state_t public; + + /** + * TNCCS connection ID + */ + TNC_ConnectionID connection_id; + + /** + * TNCCS connection state + */ + TNC_ConnectionState state; + + /** + * Assessment/Evaluation Result + */ + TNC_IMV_Evaluation_Result result; + + /** + * Does the TNCCS connection support long message types? + */ + bool has_long; + + /** + * Does the TNCCS connection support exclusive delivery? + */ + bool has_excl; + + /** + * Maximum PA-TNC message size for this TNCCS connection + */ + u_int32_t max_msg_len; + + /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** + * PTS object + */ + pts_t *pts; + + /** + * List of Functional Components + */ + linked_list_t *components; + + /** + * Functional Component Evidence cache list + */ + linked_list_t *list; + +}; + +METHOD(imc_state_t, get_connection_id, TNC_ConnectionID, + private_imc_attestation_state_t *this) +{ + return this->connection_id; +} + +METHOD(imc_state_t, has_long, bool, + private_imc_attestation_state_t *this) +{ + return this->has_long; +} + +METHOD(imc_state_t, has_excl, bool, + private_imc_attestation_state_t *this) +{ + return this->has_excl; +} + +METHOD(imc_state_t, set_flags, void, + private_imc_attestation_state_t *this, bool has_long, bool has_excl) +{ + this->has_long = has_long; + this->has_excl = has_excl; +} + +METHOD(imc_state_t, set_max_msg_len, void, + private_imc_attestation_state_t *this, u_int32_t max_msg_len) +{ + this->max_msg_len = max_msg_len; +} + +METHOD(imc_state_t, get_max_msg_len, u_int32_t, + private_imc_attestation_state_t *this) +{ + return this->max_msg_len; +} + +METHOD(imc_state_t, get_contracts, seg_contract_manager_t*, + private_imc_attestation_state_t *this) +{ + return this->contracts; +} + +METHOD(imc_state_t, change_state, void, + private_imc_attestation_state_t *this, TNC_ConnectionState new_state) +{ + this->state = new_state; +} + +METHOD(imc_state_t, set_result, void, + private_imc_attestation_state_t *this, TNC_IMCID id, + TNC_IMV_Evaluation_Result result) +{ + this->result = result; +} + +METHOD(imc_state_t, get_result, bool, + private_imc_attestation_state_t *this, TNC_IMCID id, + TNC_IMV_Evaluation_Result *result) +{ + if (result) + { + *result = this->result; + } + return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW; +} + +METHOD(imc_state_t, destroy, void, + private_imc_attestation_state_t *this) +{ + this->pts->destroy(this->pts); + this->components->destroy_offset(this->components, + offsetof(pts_component_t, destroy)); + this->list->destroy_offset(this->list, + offsetof(pts_comp_evidence_t, destroy)); + this->contracts->destroy(this->contracts); + free(this); +} + +METHOD(imc_attestation_state_t, get_pts, pts_t*, + private_imc_attestation_state_t *this) +{ + return this->pts; +} + +METHOD(imc_attestation_state_t, create_component, pts_component_t*, + private_imc_attestation_state_t *this, pts_comp_func_name_t *name, + u_int32_t depth) +{ + enumerator_t *enumerator; + pts_component_t *component; + bool found = FALSE; + + enumerator = this->components->create_enumerator(this->components); + while (enumerator->enumerate(enumerator, &component)) + { + if (name->equals(name, component->get_comp_func_name(component))) + { + found = TRUE; + break; + } + } + enumerator->destroy(enumerator); + + if (!found) + { + component = imcv_pts_components->create(imcv_pts_components, + name, depth, NULL); + if (!component) + { + return NULL; + } + this->components->insert_last(this->components, component); + + } + return component; +} + +METHOD(imc_attestation_state_t, add_evidence, void, + private_imc_attestation_state_t *this, pts_comp_evidence_t *evid) +{ + this->list->insert_last(this->list, evid); +} + +METHOD(imc_attestation_state_t, next_evidence, bool, + private_imc_attestation_state_t *this, pts_comp_evidence_t **evid) +{ + return this->list->remove_first(this->list, (void**)evid) == SUCCESS; +} + +/** + * Described in header. + */ +imc_state_t *imc_attestation_state_create(TNC_ConnectionID connection_id) +{ + private_imc_attestation_state_t *this; + + INIT(this, + .public = { + .interface = { + .get_connection_id = _get_connection_id, + .has_long = _has_long, + .has_excl = _has_excl, + .set_flags = _set_flags, + .set_max_msg_len = _set_max_msg_len, + .get_max_msg_len = _get_max_msg_len, + .get_contracts = _get_contracts, + .change_state = _change_state, + .set_result = _set_result, + .get_result = _get_result, + .destroy = _destroy, + }, + .get_pts = _get_pts, + .create_component = _create_component, + .add_evidence = _add_evidence, + .next_evidence = _next_evidence, + }, + .connection_id = connection_id, + .state = TNC_CONNECTION_STATE_CREATE, + .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, + .contracts = seg_contract_manager_create(), + .pts = pts_create(TRUE), + .components = linked_list_create(), + .list = linked_list_create(), + ); + + return &this->public.interface; +} + + diff --git a/src/libimcv/plugins/imc_attestation/imc_attestation_state.h b/src/libimcv/plugins/imc_attestation/imc_attestation_state.h new file mode 100644 index 000000000..854c8825b --- /dev/null +++ b/src/libimcv/plugins/imc_attestation/imc_attestation_state.h @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imc_attestation imc_attestation + * @ingroup libimcv_plugins + * + * @defgroup imc_attestation_state_t imc_attestation_state + * @{ @ingroup imc_attestation + */ + +#ifndef IMC_ATTESTATION_STATE_H_ +#define IMC_ATTESTATION_STATE_H_ + +#include <imc/imc_state.h> +#include <pts/pts.h> +#include <pts/components/pts_component.h> +#include <pts/components/pts_comp_evidence.h> +#include <library.h> + +typedef struct imc_attestation_state_t imc_attestation_state_t; + +/** + * Internal state of an imc_attestation_t connection instance + */ +struct imc_attestation_state_t { + + /** + * imc_state_t interface + */ + imc_state_t interface; + + /** + * Get the PTS object + * + * @return PTS object + */ + pts_t* (*get_pts)(imc_attestation_state_t *this); + + /** + * Create and add an entry to the list of Functional Components + * + * @param name Component Functional Name + * @param depth Sub-component Depth + * @return created functional component instance or NULL + */ + pts_component_t* (*create_component)(imc_attestation_state_t *this, + pts_comp_func_name_t *name, u_int32_t depth); + + /** + * Add an entry to the Component Evidence cache list + * + * @param evid Component Evidence entry + */ + void (*add_evidence)(imc_attestation_state_t *this, pts_comp_evidence_t *evid); + + /** + * Removes next entry from the Component Evidence cache list and returns it + * + * @param evid Next Component Evidence entry + * @return TRUE if next entry is available + */ + bool (*next_evidence)(imc_attestation_state_t *this, pts_comp_evidence_t** evid); + +}; + +/** + * Create an imc_attestation_state_t instance + * + * @param id connection ID + */ +imc_state_t* imc_attestation_state_create(TNC_ConnectionID id); + +#endif /** IMC_ATTESTATION_STATE_H_ @}*/ diff --git a/src/libimcv/plugins/imc_os/Makefile.in b/src/libimcv/plugins/imc_os/Makefile.in index 2f0b85404..3f4cf41a9 100644 --- a/src/libimcv/plugins/imc_os/Makefile.in +++ b/src/libimcv/plugins/imc_os/Makefile.in @@ -230,6 +230,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -290,6 +291,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -355,6 +357,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -402,6 +406,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ diff --git a/src/libimcv/plugins/imc_os/imc_os.c b/src/libimcv/plugins/imc_os/imc_os.c index c624d26b1..86d2e09ca 100644 --- a/src/libimcv/plugins/imc_os/imc_os.c +++ b/src/libimcv/plugins/imc_os/imc_os.c @@ -30,7 +30,6 @@ #include <ita/ita_attr.h> #include <ita/ita_attr_get_settings.h> #include <ita/ita_attr_settings.h> -#include <ita/ita_attr_angel.h> #include <ita/ita_attr_device_id.h> #include <tncif_pa_subtypes.h> @@ -341,69 +340,24 @@ static void add_device_id(imc_msg_t *msg) */ static void add_installed_packages(imc_state_t *state, imc_msg_t *msg) { - pa_tnc_attr_t *attr = NULL, *attr_angel; + pa_tnc_attr_t *attr; ietf_attr_installed_packages_t *attr_cast; enumerator_t *enumerator; chunk_t name, version; - size_t max_attr_size, attr_size, entry_size; - bool first = TRUE; - - /** - * Compute the maximum IETF Installed Packages attribute size - * leaving space for an additional ITA Angel attribute - */ - max_attr_size = state->get_max_msg_len(state) - - PA_TNC_HEADER_SIZE - PA_TNC_ATTR_HEADER_SIZE; - /* At least one IETF Installed Packages attribute is sent */ attr = ietf_attr_installed_packages_create(); - attr_size = PA_TNC_ATTR_HEADER_SIZE + IETF_INSTALLED_PACKAGES_MIN_SIZE; enumerator = os->create_package_enumerator(os); - if (enumerator) + while (enumerator->enumerate(enumerator, &name, &version)) { - while (enumerator->enumerate(enumerator, &name, &version)) - { - DBG2(DBG_IMC, "package '%.*s' (%.*s)", - name.len, name.ptr, version.len, version.ptr); - - entry_size = 2 + name.len + version.len; - if (attr_size + entry_size > max_attr_size) - { - if (first) - { - /** - * Send an ITA Start Angel attribute to the IMV signalling - * that multiple ITA Installed Package attributes follow. - */ - attr_angel = ita_attr_angel_create(TRUE); - msg->add_attribute(msg, attr_angel); - first = FALSE; - } - msg->add_attribute(msg, attr); - - /* create the next IETF Installed Packages attribute */ - attr = ietf_attr_installed_packages_create(); - attr_size = PA_TNC_ATTR_HEADER_SIZE + - IETF_INSTALLED_PACKAGES_MIN_SIZE; - } - attr_cast = (ietf_attr_installed_packages_t*)attr; - attr_cast->add(attr_cast, name, version); - attr_size += entry_size; - } - enumerator->destroy(enumerator); + DBG2(DBG_IMC, "package '%.*s' (%.*s)", + name.len, name.ptr, version.len, version.ptr); + attr_cast = (ietf_attr_installed_packages_t*)attr; + attr_cast->add(attr_cast, name, version); } - msg->add_attribute(msg, attr); + enumerator->destroy(enumerator); - if (!first) - { - /** - * If we sent an ITA Start Angel attribute in the first place, - * terminate by appending a matching ITA Stop Angel attribute. - */ - attr_angel = ita_attr_angel_create(FALSE); - msg->add_attribute(msg, attr_angel); - } + msg->add_attribute(msg, attr); } /** @@ -491,13 +445,16 @@ static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) TNC_Result result; bool fatal_error = FALSE; + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imc_msg_create_as_reply(in_msg); + /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, &fatal_error); + result = in_msg->receive(in_msg, out_msg, &fatal_error); if (result != TNC_RESULT_SUCCESS) { + out_msg->destroy(out_msg); return result; } - out_msg = imc_msg_create_as_reply(in_msg); /* analyze PA-TNC attributes */ enumerator = in_msg->create_attribute_enumerator(in_msg); @@ -582,6 +539,7 @@ static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) } else { + /* send PA-TNC message with the EXCL flag set */ result = out_msg->send(out_msg, TRUE); } out_msg->destroy(out_msg); diff --git a/src/libimcv/plugins/imc_os/imc_os_state.c b/src/libimcv/plugins/imc_os/imc_os_state.c index f49959ab9..139ab0597 100644 --- a/src/libimcv/plugins/imc_os/imc_os_state.c +++ b/src/libimcv/plugins/imc_os/imc_os_state.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Andreas Steffen + * Copyright (C) 2012-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -60,6 +60,11 @@ struct private_imc_os_state_t { * Maximum PA-TNC message size for this TNCCS connection */ u_int32_t max_msg_len; + + /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; }; METHOD(imc_state_t, get_connection_id, TNC_ConnectionID, @@ -99,6 +104,12 @@ METHOD(imc_state_t, get_max_msg_len, u_int32_t, return this->max_msg_len; } +METHOD(imc_state_t, get_contracts, seg_contract_manager_t*, + private_imc_os_state_t *this) +{ + return this->contracts; +} + METHOD(imc_state_t, change_state, void, private_imc_os_state_t *this, TNC_ConnectionState new_state) { @@ -126,6 +137,7 @@ METHOD(imc_state_t, get_result, bool, METHOD(imc_state_t, destroy, void, private_imc_os_state_t *this) { + this->contracts->destroy(this->contracts); free(this); } @@ -145,6 +157,7 @@ imc_state_t *imc_os_state_create(TNC_ConnectionID connection_id) .set_flags = _set_flags, .set_max_msg_len = _set_max_msg_len, .get_max_msg_len = _get_max_msg_len, + .get_contracts = _get_contracts, .change_state = _change_state, .set_result = _set_result, .get_result = _get_result, @@ -154,6 +167,7 @@ imc_state_t *imc_os_state_create(TNC_ConnectionID connection_id) .state = TNC_CONNECTION_STATE_CREATE, .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, .connection_id = connection_id, + .contracts = seg_contract_manager_create(), ); return &this->public.interface; diff --git a/src/libimcv/plugins/imc_scanner/Makefile.in b/src/libimcv/plugins/imc_scanner/Makefile.in index c66bb1afa..a192b0a41 100644 --- a/src/libimcv/plugins/imc_scanner/Makefile.in +++ b/src/libimcv/plugins/imc_scanner/Makefile.in @@ -231,6 +231,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -291,6 +292,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -356,6 +358,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -403,6 +407,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ diff --git a/src/libimcv/plugins/imc_scanner/imc_scanner.c b/src/libimcv/plugins/imc_scanner/imc_scanner.c index 2be6a87df..0478841cb 100644 --- a/src/libimcv/plugins/imc_scanner/imc_scanner.c +++ b/src/libimcv/plugins/imc_scanner/imc_scanner.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -299,13 +299,16 @@ static TNC_Result receive_message(imc_msg_t *in_msg) TNC_Result result = TNC_RESULT_SUCCESS; bool fatal_error = FALSE; + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imc_msg_create_as_reply(in_msg); + /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, &fatal_error); + result = in_msg->receive(in_msg, out_msg, &fatal_error); if (result != TNC_RESULT_SUCCESS) { + out_msg->destroy(out_msg); return result; } - out_msg = imc_msg_create_as_reply(in_msg); /* analyze PA-TNC attributes */ enumerator = in_msg->create_attribute_enumerator(in_msg); @@ -352,6 +355,7 @@ static TNC_Result receive_message(imc_msg_t *in_msg) } else if (result == TNC_RESULT_SUCCESS) { + /* send PA-TNC message with the EXCL flag set */ result = out_msg->send(out_msg, TRUE); } out_msg->destroy(out_msg); diff --git a/src/libimcv/plugins/imc_scanner/imc_scanner_state.c b/src/libimcv/plugins/imc_scanner/imc_scanner_state.c index b5a6cdd20..d357859fa 100644 --- a/src/libimcv/plugins/imc_scanner/imc_scanner_state.c +++ b/src/libimcv/plugins/imc_scanner/imc_scanner_state.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -60,6 +60,11 @@ struct private_imc_scanner_state_t { * Maximum PA-TNC message size for this TNCCS connection */ u_int32_t max_msg_len; + + /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; }; METHOD(imc_state_t, get_connection_id, TNC_ConnectionID, @@ -99,6 +104,12 @@ METHOD(imc_state_t, get_max_msg_len, u_int32_t, return this->max_msg_len; } +METHOD(imc_state_t, get_contracts, seg_contract_manager_t*, + private_imc_scanner_state_t *this) +{ + return this->contracts; +} + METHOD(imc_state_t, change_state, void, private_imc_scanner_state_t *this, TNC_ConnectionState new_state) { @@ -126,6 +137,7 @@ METHOD(imc_state_t, get_result, bool, METHOD(imc_state_t, destroy, void, private_imc_scanner_state_t *this) { + this->contracts->destroy(this->contracts); free(this); } @@ -145,6 +157,7 @@ imc_state_t *imc_scanner_state_create(TNC_ConnectionID connection_id) .set_flags = _set_flags, .set_max_msg_len = _set_max_msg_len, .get_max_msg_len = _get_max_msg_len, + .get_contracts = _get_contracts, .change_state = _change_state, .set_result = _set_result, .get_result = _get_result, @@ -154,6 +167,7 @@ imc_state_t *imc_scanner_state_create(TNC_ConnectionID connection_id) .state = TNC_CONNECTION_STATE_CREATE, .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, .connection_id = connection_id, + .contracts = seg_contract_manager_create(), ); return &this->public.interface; diff --git a/src/libimcv/plugins/imc_swid/Makefile.am b/src/libimcv/plugins/imc_swid/Makefile.am new file mode 100644 index 000000000..c1cdb988a --- /dev/null +++ b/src/libimcv/plugins/imc_swid/Makefile.am @@ -0,0 +1,37 @@ +regid = regid.2004-03.org.strongswan +unique_sw_id = strongSwan-$(PACKAGE_VERSION_MAJOR)-$(PACKAGE_VERSION_MINOR)-$(PACKAGE_VERSION_BUILD)$(PACKAGE_VERSION_REVIEW) +swid_tag = $(regid)_$(unique_sw_id).swidtag + +swiddir = $(prefix)/share/$(regid) +swid_DATA = $(swid_tag) +ipsec_DATA = $(swid_tag) +EXTRA_DIST = $(regid)_strongSwan.swidtag.in +CLEANFILES = $(regid)_strongSwan*.swidtag + +$(swid_tag) : regid.2004-03.org.strongswan_strongSwan.swidtag.in + $(AM_V_GEN) \ + sed \ + -e "s:@VERSION_MAJOR@:$(PACKAGE_VERSION_MAJOR):" \ + -e "s:@VERSION_MINOR@:$(PACKAGE_VERSION_MINOR):" \ + -e "s:@VERSION_BUILD@:$(PACKAGE_VERSION_BUILD):" \ + -e "s:@VERSION_REVIEW@:$(PACKAGE_VERSION_REVIEW):" \ + $(srcdir)/$(regid)_strongSwan.swidtag.in > $@ + +AM_CPPFLAGS = \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libtncif \ + -I$(top_srcdir)/src/libimcv \ + -DSWID_DIRECTORY=\"${prefix}/share\" + +AM_CFLAGS = \ + $(PLUGIN_CFLAGS) + +imcv_LTLIBRARIES = imc-swid.la + +imc_swid_la_LIBADD = \ + $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la + +imc_swid_la_SOURCES = imc_swid.c imc_swid_state.h imc_swid_state.c + +imc_swid_la_LDFLAGS = -module -avoid-version -no-undefined diff --git a/src/libimcv/plugins/imc_swid/Makefile.in b/src/libimcv/plugins/imc_swid/Makefile.in new file mode 100644 index 000000000..f1859a2cb --- /dev/null +++ b/src/libimcv/plugins/imc_swid/Makefile.in @@ -0,0 +1,826 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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cp -p $$d/$$file "$(distdir)/$$file" \ + || exit 1; \ + fi; \ + done +check-am: all-am +check: check-am +all-am: Makefile $(LTLIBRARIES) $(DATA) +installdirs: + for dir in "$(DESTDIR)$(imcvdir)" "$(DESTDIR)$(ipsecdir)" "$(DESTDIR)$(swiddir)"; do \ + test -z "$$dir" || $(MKDIR_P) "$$dir"; \ + done +install: install-am +install-exec: install-exec-am +install-data: install-data-am +uninstall: uninstall-am + +install-am: all-am + @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am + +installcheck: installcheck-am +install-strip: + if test -z '$(STRIP)'; then \ + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + install; \ + else \ + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \ + fi +mostlyclean-generic: + +clean-generic: + -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES) + +distclean-generic: + -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) + -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES) + +maintainer-clean-generic: + @echo "This command is intended for maintainers to use" + @echo "it deletes files that may require special tools to rebuild." +clean: clean-am + +clean-am: clean-generic clean-imcvLTLIBRARIES clean-libtool \ + mostlyclean-am + +distclean: distclean-am + -rm -rf ./$(DEPDIR) + -rm -f Makefile +distclean-am: clean-am distclean-compile distclean-generic \ + distclean-tags + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-imcvLTLIBRARIES install-ipsecDATA \ + install-swidDATA + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -rf ./$(DEPDIR) + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-imcvLTLIBRARIES uninstall-ipsecDATA \ + uninstall-swidDATA + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \ + clean-imcvLTLIBRARIES clean-libtool cscopelist-am ctags \ + ctags-am distclean distclean-compile distclean-generic \ + distclean-libtool distclean-tags distdir dvi dvi-am html \ + html-am info info-am install install-am install-data \ + install-data-am install-dvi install-dvi-am install-exec \ + install-exec-am install-html install-html-am \ + install-imcvLTLIBRARIES install-info install-info-am \ + install-ipsecDATA install-man install-pdf install-pdf-am \ + install-ps install-ps-am install-strip install-swidDATA \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags tags-am uninstall uninstall-am uninstall-imcvLTLIBRARIES \ + uninstall-ipsecDATA uninstall-swidDATA + + +$(swid_tag) : regid.2004-03.org.strongswan_strongSwan.swidtag.in + $(AM_V_GEN) \ + sed \ + -e "s:@VERSION_MAJOR@:$(PACKAGE_VERSION_MAJOR):" \ + -e "s:@VERSION_MINOR@:$(PACKAGE_VERSION_MINOR):" \ + -e "s:@VERSION_BUILD@:$(PACKAGE_VERSION_BUILD):" \ + -e "s:@VERSION_REVIEW@:$(PACKAGE_VERSION_REVIEW):" \ + $(srcdir)/$(regid)_strongSwan.swidtag.in > $@ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libimcv/plugins/imc_swid/imc_swid.c b/src/libimcv/plugins/imc_swid/imc_swid.c new file mode 100644 index 000000000..40f352ad9 --- /dev/null +++ b/src/libimcv/plugins/imc_swid/imc_swid.c @@ -0,0 +1,424 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imc_swid_state.h" + +#include <imc/imc_agent.h> +#include <imc/imc_msg.h> +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" +#include "tcg/swid/tcg_swid_attr_req.h" +#include "tcg/swid/tcg_swid_attr_tag_inv.h" +#include "tcg/swid/tcg_swid_attr_tag_id_inv.h" +#include "swid/swid_inventory.h" +#include "swid/swid_error.h" + +#include <tncif_pa_subtypes.h> + +#include <pen/pen.h> +#include <utils/debug.h> + +#define SWID_GENERATOR "/usr/local/bin/swid_generator" + +/* IMC definitions */ + +static const char imc_name[] = "SWID"; + +static pen_type_t msg_types[] = { + { PEN_TCG, PA_SUBTYPE_TCG_SWID } +}; + +static imc_agent_t *imc_swid; + +/** + * see section 3.8.1 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id, + TNC_Version min_version, + TNC_Version max_version, + TNC_Version *actual_version) +{ + if (imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name); + return TNC_RESULT_ALREADY_INITIALIZED; + } + imc_swid = imc_agent_create(imc_name, msg_types, countof(msg_types), + imc_id, actual_version); + if (!imc_swid) + { + return TNC_RESULT_FATAL; + } + if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1) + { + DBG1(DBG_IMC, "no common IF-IMC version"); + return TNC_RESULT_NO_COMMON_VERSION; + } + return TNC_RESULT_SUCCESS; +} + +/** + * see section 3.8.2 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id, + TNC_ConnectionID connection_id, + TNC_ConnectionState new_state) +{ + imc_state_t *state; + + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + switch (new_state) + { + case TNC_CONNECTION_STATE_CREATE: + state = imc_swid_state_create(connection_id); + return imc_swid->create_state(imc_swid, state); + case TNC_CONNECTION_STATE_HANDSHAKE: + if (imc_swid->change_state(imc_swid, connection_id, new_state, + &state) != TNC_RESULT_SUCCESS) + { + return TNC_RESULT_FATAL; + } + state->set_result(state, imc_id, + TNC_IMV_EVALUATION_RESULT_DONT_KNOW); + return TNC_RESULT_SUCCESS; + case TNC_CONNECTION_STATE_DELETE: + return imc_swid->delete_state(imc_swid, connection_id); + default: + return imc_swid->change_state(imc_swid, connection_id, + new_state, NULL); + } +} + +/** + * see section 3.8.3 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id, + TNC_ConnectionID connection_id) +{ + imc_state_t *state; + imc_msg_t *out_msg; + pa_tnc_attr_t *attr; + seg_contract_t *contract; + seg_contract_manager_t *contracts; + size_t max_attr_size = SWID_MAX_ATTR_SIZE; + size_t max_seg_size; + char buf[BUF_LEN]; + TNC_Result result = TNC_RESULT_SUCCESS; + + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + if (!imc_swid->get_state(imc_swid, connection_id, &state)) + { + return TNC_RESULT_FATAL; + } + + /* Determine maximum PA-TNC attribute segment size */ + max_seg_size = state->get_max_msg_len(state) - PA_TNC_HEADER_SIZE + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_SEG_ENV_HEADER + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_MAX_SIZE_SIZE; + + /* Announce support of PA-TNC segmentation to IMV */ + contract = seg_contract_create(msg_types[0], max_attr_size, max_seg_size, + TRUE, imc_id, TRUE); + contract->get_info_string(contract, buf, BUF_LEN, TRUE); + DBG2(DBG_IMC, "%s", buf); + contracts = state->get_contracts(state); + contracts->add_contract(contracts, contract); + attr = tcg_seg_attr_max_size_create(max_attr_size, max_seg_size, TRUE); + + /* send PA-TNC message with the excl flag not set */ + out_msg = imc_msg_create(imc_swid, state, connection_id, imc_id, + TNC_IMVID_ANY, msg_types[0]); + out_msg->add_attribute(out_msg, attr); + result = out_msg->send(out_msg, FALSE); + out_msg->destroy(out_msg); + + return result; +} + +/** + * Add one or multiple SWID Inventory attributes to the send queue + */ +static bool add_swid_inventory(imc_state_t *state, imc_msg_t *msg, + uint32_t request_id, bool full_tags, + swid_inventory_t *targets) +{ + pa_tnc_attr_t *attr, *attr_error; + imc_swid_state_t *swid_state; + swid_inventory_t *swid_inventory; + char *swid_directory, *swid_generator; + uint32_t eid_epoch; + bool swid_pretty, swid_full; + enumerator_t *enumerator; + + swid_directory = lib->settings->get_str(lib->settings, + "%s.plugins.imc-swid.swid_directory", + SWID_DIRECTORY, lib->ns); + swid_generator = lib->settings->get_str(lib->settings, + "%s.plugins.imc-swid.swid_generator", + SWID_GENERATOR, lib->ns); + swid_pretty = lib->settings->get_bool(lib->settings, + "%s.plugins.imc-swid.swid_pretty", + FALSE, lib->ns); + swid_full = lib->settings->get_bool(lib->settings, + "%s.plugins.imc-swid.swid_full", + FALSE, lib->ns); + + swid_inventory = swid_inventory_create(full_tags); + if (!swid_inventory->collect(swid_inventory, swid_directory, swid_generator, + targets, swid_pretty, swid_full)) + { + swid_inventory->destroy(swid_inventory); + attr_error = swid_error_create(TCG_SWID_ERROR, request_id, + 0, "error in SWID tag collection"); + msg->add_attribute(msg, attr_error); + return FALSE; + } + DBG1(DBG_IMC, "collected %d SWID tag%s%s", + swid_inventory->get_count(swid_inventory), full_tags ? "" : " ID", + swid_inventory->get_count(swid_inventory) == 1 ? "" : "s"); + + swid_state = (imc_swid_state_t*)state; + eid_epoch = swid_state->get_eid_epoch(swid_state); + + if (full_tags) + { + tcg_swid_attr_tag_inv_t *swid_attr; + swid_tag_t *tag; + + /* Send a TCG SWID Tag Inventory attribute */ + attr = tcg_swid_attr_tag_inv_create(request_id, eid_epoch, 1); + swid_attr = (tcg_swid_attr_tag_inv_t*)attr; + + enumerator = swid_inventory->create_enumerator(swid_inventory); + while (enumerator->enumerate(enumerator, &tag)) + { + swid_attr->add(swid_attr, tag->get_ref(tag)); + } + enumerator->destroy(enumerator); + } + else + { + tcg_swid_attr_tag_id_inv_t *swid_id_attr; + swid_tag_id_t *tag_id; + + /* Send a TCG SWID Tag ID Inventory attribute */ + attr = tcg_swid_attr_tag_id_inv_create(request_id, eid_epoch, 1); + swid_id_attr = (tcg_swid_attr_tag_id_inv_t*)attr; + + enumerator = swid_inventory->create_enumerator(swid_inventory); + while (enumerator->enumerate(enumerator, &tag_id)) + { + swid_id_attr->add(swid_id_attr, tag_id->get_ref(tag_id)); + } + enumerator->destroy(enumerator); + } + + msg->add_attribute(msg, attr); + swid_inventory->destroy(swid_inventory); + + return TRUE; +} + +static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) +{ + imc_msg_t *out_msg; + pa_tnc_attr_t *attr; + enumerator_t *enumerator; + pen_type_t type; + TNC_Result result; + bool fatal_error = FALSE; + + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imc_msg_create_as_reply(in_msg); + + /* parse received PA-TNC message and handle local and remote errors */ + result = in_msg->receive(in_msg, out_msg, &fatal_error); + if (result != TNC_RESULT_SUCCESS) + { + out_msg->destroy(out_msg); + return result; + } + + /* analyze PA-TNC attributes */ + enumerator = in_msg->create_attribute_enumerator(in_msg); + while (enumerator->enumerate(enumerator, &attr)) + { + tcg_swid_attr_req_t *attr_req; + uint8_t flags; + uint32_t request_id; + bool full_tags; + swid_inventory_t *targets; + + type = attr->get_type(attr); + + if (type.vendor_id != PEN_TCG || type.type != TCG_SWID_REQUEST) + { + continue; + } + + attr_req = (tcg_swid_attr_req_t*)attr; + flags = attr_req->get_flags(attr_req); + request_id = attr_req->get_request_id(attr_req); + targets = attr_req->get_targets(attr_req); + + if (flags & (TCG_SWID_ATTR_REQ_FLAG_S | TCG_SWID_ATTR_REQ_FLAG_C)) + { + attr = swid_error_create(TCG_SWID_SUBSCRIPTION_DENIED, request_id, + 0, "no subscription available yet"); + out_msg->add_attribute(out_msg, attr); + break; + } + full_tags = (flags & TCG_SWID_ATTR_REQ_FLAG_R) == 0; + + if (!add_swid_inventory(state, out_msg, request_id, full_tags, targets)) + { + break; + } + } + enumerator->destroy(enumerator); + + if (fatal_error) + { + result = TNC_RESULT_FATAL; + } + else + { + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); + } + out_msg->destroy(out_msg); + + return result; +} + +/** + * see section 3.8.4 of TCG TNC IF-IMC Specification 1.3 + + */ +TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id, + TNC_ConnectionID connection_id, + TNC_BufferReference msg, + TNC_UInt32 msg_len, + TNC_MessageType msg_type) +{ + imc_state_t *state; + imc_msg_t *in_msg; + TNC_Result result; + + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + if (!imc_swid->get_state(imc_swid, connection_id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imc_msg_create_from_data(imc_swid, state, connection_id, msg_type, + chunk_create(msg, msg_len)); + result = receive_message(state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +/** + * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3 + */ +TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id, + TNC_ConnectionID connection_id, + TNC_UInt32 msg_flags, + TNC_BufferReference msg, + TNC_UInt32 msg_len, + TNC_VendorID msg_vid, + TNC_MessageSubtype msg_subtype, + TNC_UInt32 src_imv_id, + TNC_UInt32 dst_imc_id) +{ + imc_state_t *state; + imc_msg_t *in_msg; + TNC_Result result; + + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + if (!imc_swid->get_state(imc_swid, connection_id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imc_msg_create_from_long_data(imc_swid, state, connection_id, + src_imv_id, dst_imc_id,msg_vid, msg_subtype, + chunk_create(msg, msg_len)); + result =receive_message(state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +/** + * see section 3.8.7 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_BatchEnding(TNC_IMCID imc_id, + TNC_ConnectionID connection_id) +{ + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + return TNC_RESULT_SUCCESS; +} + +/** + * see section 3.8.8 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_Terminate(TNC_IMCID imc_id) +{ + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + imc_swid->destroy(imc_swid); + imc_swid = NULL; + + return TNC_RESULT_SUCCESS; +} + +/** + * see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3 + */ +TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id, + TNC_TNCC_BindFunctionPointer bind_function) +{ + if (!imc_swid) + { + DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name); + return TNC_RESULT_NOT_INITIALIZED; + } + return imc_swid->bind_functions(imc_swid, bind_function); +} diff --git a/src/libimcv/plugins/imc_swid/imc_swid_state.c b/src/libimcv/plugins/imc_swid/imc_swid_state.c new file mode 100644 index 000000000..65c279b3f --- /dev/null +++ b/src/libimcv/plugins/imc_swid/imc_swid_state.c @@ -0,0 +1,203 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imc_swid_state.h" + +#include <tncif_names.h> + +#include <utils/debug.h> + +typedef struct private_imc_swid_state_t private_imc_swid_state_t; + +/** + * Private data of an imc_swid_state_t object. + */ +struct private_imc_swid_state_t { + + /** + * Public members of imc_swid_state_t + */ + imc_swid_state_t public; + + /** + * TNCCS connection ID + */ + TNC_ConnectionID connection_id; + + /** + * TNCCS connection state + */ + TNC_ConnectionState state; + + /** + * Assessment/Evaluation Result + */ + TNC_IMV_Evaluation_Result result; + + /** + * Does the TNCCS connection support long message types? + */ + bool has_long; + + /** + * Does the TNCCS connection support exclusive delivery? + */ + bool has_excl; + + /** + * Maximum PA-TNC message size for this TNCCS connection + */ + u_int32_t max_msg_len; + + /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** + * Event ID Epoch + */ + u_int32_t eid_epoch; +}; + +METHOD(imc_state_t, get_connection_id, TNC_ConnectionID, + private_imc_swid_state_t *this) +{ + return this->connection_id; +} + +METHOD(imc_state_t, has_long, bool, + private_imc_swid_state_t *this) +{ + return this->has_long; +} + +METHOD(imc_state_t, has_excl, bool, + private_imc_swid_state_t *this) +{ + return this->has_excl; +} + +METHOD(imc_state_t, set_flags, void, + private_imc_swid_state_t *this, bool has_long, bool has_excl) +{ + this->has_long = has_long; + this->has_excl = has_excl; +} + +METHOD(imc_state_t, set_max_msg_len, void, + private_imc_swid_state_t *this, u_int32_t max_msg_len) +{ + this->max_msg_len = max_msg_len; +} + +METHOD(imc_state_t, get_max_msg_len, u_int32_t, + private_imc_swid_state_t *this) +{ + return this->max_msg_len; +} + +METHOD(imc_state_t, get_contracts, seg_contract_manager_t*, + private_imc_swid_state_t *this) +{ + return this->contracts; +} + +METHOD(imc_state_t, change_state, void, + private_imc_swid_state_t *this, TNC_ConnectionState new_state) +{ + this->state = new_state; +} + +METHOD(imc_state_t, set_result, void, + private_imc_swid_state_t *this, TNC_IMCID id, + TNC_IMV_Evaluation_Result result) +{ + this->result = result; +} + +METHOD(imc_state_t, get_result, bool, + private_imc_swid_state_t *this, TNC_IMCID id, + TNC_IMV_Evaluation_Result *result) +{ + if (result) + { + *result = this->result; + } + return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW; +} + +METHOD(imc_state_t, destroy, void, + private_imc_swid_state_t *this) +{ + this->contracts->destroy(this->contracts); + free(this); +} + +METHOD(imc_swid_state_t, get_eid_epoch, u_int32_t, + private_imc_swid_state_t *this) +{ + return this->eid_epoch; +} + +/** + * Described in header. + */ +imc_state_t *imc_swid_state_create(TNC_ConnectionID connection_id) +{ + private_imc_swid_state_t *this; + u_int32_t eid_epoch; + nonce_gen_t *ng; + + ng = lib->crypto->create_nonce_gen(lib->crypto); + if (!ng || !ng->get_nonce(ng, 4, (u_int8_t*)&eid_epoch)) + { + DBG1(DBG_TNC, "failed to generate random EID epoch value"); + DESTROY_IF(ng); + return NULL; + } + ng->destroy(ng); + + DBG1(DBG_IMC, "creating random EID epoch 0x%08x", eid_epoch); + + INIT(this, + .public = { + .interface = { + .get_connection_id = _get_connection_id, + .has_long = _has_long, + .has_excl = _has_excl, + .set_flags = _set_flags, + .set_max_msg_len = _set_max_msg_len, + .get_max_msg_len = _get_max_msg_len, + .get_contracts = _get_contracts, + .change_state = _change_state, + .set_result = _set_result, + .get_result = _get_result, + .destroy = _destroy, + }, + .get_eid_epoch = _get_eid_epoch, + }, + .state = TNC_CONNECTION_STATE_CREATE, + .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, + .connection_id = connection_id, + .contracts = seg_contract_manager_create(), + .eid_epoch = eid_epoch, + ); + + + return &this->public.interface; +} + + diff --git a/src/libimcv/plugins/imc_swid/imc_swid_state.h b/src/libimcv/plugins/imc_swid/imc_swid_state.h new file mode 100644 index 000000000..cb3ac4589 --- /dev/null +++ b/src/libimcv/plugins/imc_swid/imc_swid_state.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2013 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imc_swid imc_swid + * @ingroup libimcv_plugins + * + * @defgroup imc_swid_state_t imc_swid_state + * @{ @ingroup imc_swid + */ + +#ifndef IMC_SWID_STATE_H_ +#define IMC_SWID_STATE_H_ + +#include <imc/imc_state.h> +#include <library.h> + +typedef struct imc_swid_state_t imc_swid_state_t; + +/** + * Internal state of an imc_swid_t connection instance + */ +struct imc_swid_state_t { + + /** + * imc_state_t interface + */ + imc_state_t interface; + + /** + * Get Event ID Epoch + * + * @return Event ID Epoch + */ + u_int32_t (*get_eid_epoch)(imc_swid_state_t *this); + +}; + +/** + * Create an imc_swid_state_t instance + * + * @param id connection ID + */ +imc_state_t* imc_swid_state_create(TNC_ConnectionID id); + +#endif /** IMC_SWID_STATE_H_ @}*/ diff --git a/src/libimcv/plugins/imc_swid/regid.2004-03.org.strongswan_strongSwan.swidtag.in b/src/libimcv/plugins/imc_swid/regid.2004-03.org.strongswan_strongSwan.swidtag.in new file mode 100644 index 000000000..8b7b50fdf --- /dev/null +++ b/src/libimcv/plugins/imc_swid/regid.2004-03.org.strongswan_strongSwan.swidtag.in @@ -0,0 +1,12 @@ +<?xml version="1.0" encoding="utf-8"?> + +<SoftwareIdentity + name="strongSwan" + uniqueId="strongSwan-@VERSION_MAJOR@-@VERSION_MINOR@-@VERSION_BUILD@@VERSION_REVIEW@" + version="@VERSION_MAJOR@.@VERSION_MINOR@.@VERSION_BUILD@@VERSION_REVIEW@" versionScheme="alphanumeric" + xmlns="http://standards.iso.org/iso/19770/-2/2014/schema.xsd"> + <Entity + name="strongSwan Project" + regid="regid.2004-03.org.strongswan" + role="publisher licensor tagcreator"/> +</SoftwareIdentity> diff --git a/src/libimcv/plugins/imc_test/Makefile.in b/src/libimcv/plugins/imc_test/Makefile.in index 1702574f9..3e1d0232f 100644 --- a/src/libimcv/plugins/imc_test/Makefile.in +++ b/src/libimcv/plugins/imc_test/Makefile.in @@ -230,6 +230,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -290,6 +291,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -355,6 +357,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -402,6 +406,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ diff --git a/src/libimcv/plugins/imc_test/imc_test.c b/src/libimcv/plugins/imc_test/imc_test.c index ee982d93b..d38ace140 100644 --- a/src/libimcv/plugins/imc_test/imc_test.c +++ b/src/libimcv/plugins/imc_test/imc_test.c @@ -181,7 +181,7 @@ TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id, } } -static TNC_Result send_message(imc_state_t *state, imc_msg_t *out_msg) +static void create_message(imc_state_t *state, imc_msg_t *out_msg) { imc_test_state_t *test_state; pa_tnc_attr_t *attr; @@ -196,9 +196,6 @@ static TNC_Result send_message(imc_state_t *state, imc_msg_t *out_msg) attr = ita_attr_command_create(test_state->get_command(test_state)); attr->set_noskip_flag(attr, TRUE); out_msg->add_attribute(out_msg, attr); - - /* send PA-TNC message with the excl flag set */ - return out_msg->send(out_msg, TRUE); } /** @@ -224,10 +221,11 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id, return TNC_RESULT_FATAL; } - /* send PA message for primary IMC ID */ + /* send PA message for primary IMC ID with the EXCL flag set */ out_msg = imc_msg_create(imc_test, state, connection_id, imc_id, TNC_IMVID_ANY, msg_types[0]); - result = send_message(state, out_msg); + create_message(state, out_msg); + result = out_msg->send(out_msg, TRUE); out_msg->destroy(out_msg); /* Exit if there are no additional IMC IDs */ @@ -253,7 +251,8 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id, additional_id = (TNC_UInt32)pointer; out_msg = imc_msg_create(imc_test, state, connection_id, additional_id, TNC_IMVID_ANY, msg_types[0]); - result = send_message(state, out_msg); + create_message(state, out_msg); + result = out_msg->send(out_msg, TRUE); out_msg->destroy(out_msg); } enumerator->destroy(enumerator); @@ -267,13 +266,17 @@ static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) enumerator_t *enumerator; pa_tnc_attr_t *attr; pen_type_t attr_type; - TNC_Result result; + TNC_Result result = TNC_RESULT_SUCCESS; bool fatal_error = FALSE; + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imc_msg_create_as_reply(in_msg); + /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, &fatal_error); + result = in_msg->receive(in_msg, out_msg, &fatal_error); if (result != TNC_RESULT_SUCCESS) { + out_msg->destroy(out_msg); return result; } @@ -308,16 +311,17 @@ static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg) if (fatal_error) { - return TNC_RESULT_FATAL; + result = TNC_RESULT_FATAL; } - - /* if no assessment result is known then repeat the measurement */ - if (state->get_result(state, in_msg->get_dst_id(in_msg), NULL)) + else { - return TNC_RESULT_SUCCESS; + /* if no assessment result is known then repeat the measurement */ + if (!state->get_result(state, in_msg->get_dst_id(in_msg), NULL)) + { + create_message(state, out_msg); + } + result = out_msg->send(out_msg, TRUE); } - out_msg = imc_msg_create_as_reply(in_msg); - result = send_message(state, out_msg); out_msg->destroy(out_msg); return result; diff --git a/src/libimcv/plugins/imc_test/imc_test_state.c b/src/libimcv/plugins/imc_test/imc_test_state.c index e7beca0aa..d3f6805ad 100644 --- a/src/libimcv/plugins/imc_test/imc_test_state.c +++ b/src/libimcv/plugins/imc_test/imc_test_state.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2012 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -64,6 +64,11 @@ struct private_imc_test_state_t { u_int32_t max_msg_len; /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** * Command to transmit to IMV */ char *command; @@ -130,6 +135,12 @@ METHOD(imc_state_t, get_max_msg_len, u_int32_t, return this->max_msg_len; } +METHOD(imc_state_t, get_contracts, seg_contract_manager_t*, + private_imc_test_state_t *this) +{ + return this->contracts; +} + METHOD(imc_state_t, change_state, void, private_imc_test_state_t *this, TNC_ConnectionState new_state) { @@ -195,6 +206,7 @@ METHOD(imc_state_t, destroy, void, private_imc_test_state_t *this) { this->results->destroy_function(this->results, free); + this->contracts->destroy(this->contracts); free(this->command); free(this); } @@ -261,6 +273,7 @@ imc_state_t *imc_test_state_create(TNC_ConnectionID connection_id, .set_flags = _set_flags, .set_max_msg_len = _set_max_msg_len, .get_max_msg_len = _get_max_msg_len, + .get_contracts = _get_contracts, .change_state = _change_state, .set_result = _set_result, .get_result = _get_result, @@ -275,6 +288,7 @@ imc_state_t *imc_test_state_create(TNC_ConnectionID connection_id, .state = TNC_CONNECTION_STATE_CREATE, .results = linked_list_create(), .connection_id = connection_id, + .contracts = seg_contract_manager_create(), .command = strdup(command), .dummy_size = dummy_size, .first_handshake = TRUE, diff --git a/src/libimcv/plugins/imv_attestation/Makefile.am b/src/libimcv/plugins/imv_attestation/Makefile.am new file mode 100644 index 000000000..6c5bf8913 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/Makefile.am @@ -0,0 +1,33 @@ +AM_CPPFLAGS = \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libtncif \ + -I$(top_srcdir)/src/libimcv \ + -DPLUGINS=\""${attest_plugins}\"" + +AM_CFLAGS = \ + $(PLUGIN_CFLAGS) + +imcv_LTLIBRARIES = imv-attestation.la + +imv_attestation_la_LIBADD = \ + $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la + +imv_attestation_la_SOURCES = imv_attestation.c \ + imv_attestation_state.h imv_attestation_state.c \ + imv_attestation_agent.h imv_attestation_agent.c \ + imv_attestation_process.h imv_attestation_process.c \ + imv_attestation_build.h imv_attestation_build.c + +imv_attestation_la_LDFLAGS = -module -avoid-version -no-undefined + +ipsec_PROGRAMS = attest +attest_SOURCES = attest.c \ + attest_usage.h attest_usage.c \ + attest_db.h attest_db.c +attest_LDADD = \ + $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la +attest.o : $(top_builddir)/config.status + +EXTRA_DIST = build-database.sh diff --git a/src/libimcv/plugins/imv_attestation/Makefile.in b/src/libimcv/plugins/imv_attestation/Makefile.in new file mode 100644 index 000000000..3ba7c8c88 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/Makefile.in @@ -0,0 +1,847 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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b/src/libimcv/plugins/imv_attestation/attest.c @@ -0,0 +1,484 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE +#include <getopt.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <libgen.h> +#ifdef HAVE_SYSLOG +# include <syslog.h> +#endif + +#include <library.h> +#include <utils/debug.h> + +#include <imcv.h> +#include <pts/pts_meas_algo.h> + +#include "attest_db.h" +#include "attest_usage.h" + +/** + * global debug output variables + */ +static int debug_level = 1; +static bool stderr_quiet = TRUE; + +/** + * attest dbg function + */ +static void attest_dbg(debug_t group, level_t level, char *fmt, ...) +{ + va_list args; + + if (level <= debug_level) + { + if (!stderr_quiet) + { + va_start(args, fmt); + vfprintf(stderr, fmt, args); + fprintf(stderr, "\n"); + va_end(args); + } + +#ifdef HAVE_SYSLOG + { + int priority = LOG_INFO; + char buffer[8192]; + char *current = buffer, *next; + + /* write in memory buffer first */ + va_start(args, fmt); + vsnprintf(buffer, sizeof(buffer), fmt, args); + va_end(args); + + /* do a syslog with every line */ + while (current) + { + next = strchr(current, '\n'); + if (next) + { + *(next++) = '\0'; + } + syslog(priority, "%s\n", current); + current = next; + } + } +#endif /* HAVE_SYSLOG */ + } +} + +/** + * global attestation database object + */ +attest_db_t *attest; + + +/** + * atexit handler to close db on shutdown + */ +static void cleanup(void) +{ + attest->destroy(attest); + libimcv_deinit(); +#ifdef HAVE_SYSLOG + closelog(); +#endif +} + +static void do_args(int argc, char *argv[]) +{ + enum { + OP_UNDEF, + OP_USAGE, + OP_KEYS, + OP_COMPONENTS, + OP_DEVICES, + OP_DIRECTORIES, + OP_FILES, + OP_HASHES, + OP_MEASUREMENTS, + OP_PACKAGES, + OP_PRODUCTS, + OP_SESSIONS, + OP_ADD, + OP_DEL, + } op = OP_UNDEF; + + /* reinit getopt state */ + optind = 0; + + while (TRUE) + { + int c; + + struct option long_opts[] = { + { "help", no_argument, NULL, 'h' }, + { "components", no_argument, NULL, 'c' }, + { "devices", no_argument, NULL, 'e' }, + { "directories", no_argument, NULL, 'd' }, + { "dirs", no_argument, NULL, 'd' }, + { "files", no_argument, NULL, 'f' }, + { "keys", no_argument, NULL, 'k' }, + { "packages", no_argument, NULL, 'g' }, + { "products", no_argument, NULL, 'p' }, + { "hashes", no_argument, NULL, 'H' }, + { "measurements", no_argument, NULL, 'm' }, + { "sessions", no_argument, NULL, 's' }, + { "add", no_argument, NULL, 'a' }, + { "delete", no_argument, NULL, 'r' }, + { "del", no_argument, NULL, 'r' }, + { "remove", no_argument, NULL, 'r' }, + { "aik", required_argument, NULL, 'A' }, + { "blacklist", no_argument, NULL, 'B' }, + { "component", required_argument, NULL, 'C' }, + { "comp", required_argument, NULL, 'C' }, + { "directory", required_argument, NULL, 'D' }, + { "dir", required_argument, NULL, 'D' }, + { "file", required_argument, NULL, 'F' }, + { "package", required_argument, NULL, 'G' }, + { "key", required_argument, NULL, 'K' }, + { "measdir", required_argument, NULL, 'M' }, + { "owner", required_argument, NULL, 'O' }, + { "product", required_argument, NULL, 'P' }, + { "relative", no_argument, NULL, 'R' }, + { "rel", no_argument, NULL, 'R' }, + { "sequence", required_argument, NULL, 'S' }, + { "seq", required_argument, NULL, 'S' }, + { "utc", no_argument, NULL, 'U' }, + { "version", required_argument, NULL, 'V' }, + { "security", no_argument, NULL, 'Y' }, + { "sha1", no_argument, NULL, '1' }, + { "sha256", no_argument, NULL, '2' }, + { "sha384", no_argument, NULL, '3' }, + { "did", required_argument, NULL, '4' }, + { "fid", required_argument, NULL, '5' }, + { "pid", required_argument, NULL, '6' }, + { "cid", required_argument, NULL, '7' }, + { "kid", required_argument, NULL, '8' }, + { "gid", required_argument, NULL, '9' }, + { 0,0,0,0 } + }; + + c = getopt_long(argc, argv, "", long_opts, NULL); + switch (c) + { + case EOF: + break; + case 'h': + op = OP_USAGE; + break; + case 'c': + op = OP_COMPONENTS; + continue; + case 'd': + op = OP_DIRECTORIES; + continue; + case 'e': + op = OP_DEVICES; + continue; + case 'f': + op = OP_FILES; + continue; + case 'g': + op = OP_PACKAGES; + continue; + case 'k': + op = OP_KEYS; + continue; + case 'p': + op = OP_PRODUCTS; + continue; + case 'H': + op = OP_HASHES; + continue; + case 'm': + op = OP_MEASUREMENTS; + continue; + case 's': + op = OP_SESSIONS; + continue; + case 'a': + op = OP_ADD; + continue; + case 'r': + op = OP_DEL; + continue; + case 'A': + { + certificate_t *aik_cert; + public_key_t *aik_key; + chunk_t aik; + + aik_cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, + CERT_X509, BUILD_FROM_FILE, optarg, BUILD_END); + if (!aik_cert) + { + printf("AIK certificate '%s' could not be loaded\n", optarg); + exit(EXIT_FAILURE); + } + aik_key = aik_cert->get_public_key(aik_cert); + aik_cert->destroy(aik_cert); + + if (!aik_key) + { + printf("AIK public key could not be retrieved\n"); + exit(EXIT_FAILURE); + } + if (!aik_key->get_fingerprint(aik_key, KEYID_PUBKEY_INFO_SHA1, + &aik)) + { + printf("AIK fingerprint could not be computed\n"); + aik_key->destroy(aik_key); + exit(EXIT_FAILURE); + } + aik = chunk_clone(aik); + aik_key->destroy(aik_key); + + if (!attest->set_key(attest, aik, op == OP_ADD)) + { + exit(EXIT_FAILURE); + } + continue; + } + case 'B': + attest->set_package_state(attest, OS_PACKAGE_STATE_BLACKLIST); + continue; + case 'C': + if (!attest->set_component(attest, optarg, op == OP_ADD)) + { + exit(EXIT_FAILURE); + } + continue; + case 'D': + if (!attest->set_directory(attest, optarg, op == OP_ADD)) + { + exit(EXIT_FAILURE); + } + continue; + case 'F': + { + char *dir = path_dirname(optarg); + char *file = path_basename(optarg); + + if (*dir != '.') + { + if (!attest->set_directory(attest, dir, op == OP_ADD)) + { + free(file); + free(dir); + exit(EXIT_FAILURE); + } + } + free(dir); + + if (!attest->set_file(attest, file, op == OP_ADD)) + { + free(file); + exit(EXIT_FAILURE); + } + free(file); + continue; + } + case 'G': + if (!attest->set_package(attest, optarg, op == OP_ADD)) + { + exit(EXIT_FAILURE); + } + continue; + case 'K': + { + chunk_t aik; + + aik = chunk_from_hex(chunk_create(optarg, strlen(optarg)), NULL); + if (!attest->set_key(attest, aik, op == OP_ADD)) + { + exit(EXIT_FAILURE); + } + continue; + } + case 'M': + if (!attest->set_meas_directory(attest, optarg)) + { + exit(EXIT_FAILURE); + } + continue; + case 'O': + attest->set_owner(attest, optarg); + continue; + case 'P': + if (!attest->set_product(attest, optarg, op == OP_ADD)) + { + exit(EXIT_FAILURE); + } + continue; + case 'R': + attest->set_relative(attest); + continue; + case 'S': + attest->set_sequence(attest, atoi(optarg)); + continue; + case 'U': + attest->set_utc(attest); + continue; + case 'V': + if (!attest->set_version(attest, optarg)) + { + exit(EXIT_FAILURE); + } + continue; + case 'Y': + attest->set_package_state(attest, OS_PACKAGE_STATE_SECURITY); + continue; + case '1': + attest->set_algo(attest, PTS_MEAS_ALGO_SHA1); + continue; + case '2': + attest->set_algo(attest, PTS_MEAS_ALGO_SHA256); + continue; + case '3': + attest->set_algo(attest, PTS_MEAS_ALGO_SHA384); + continue; + case '4': + if (!attest->set_did(attest, atoi(optarg))) + { + exit(EXIT_FAILURE); + } + continue; + case '5': + if (!attest->set_fid(attest, atoi(optarg))) + { + exit(EXIT_FAILURE); + } + continue; + case '6': + if (!attest->set_pid(attest, atoi(optarg))) + { + exit(EXIT_FAILURE); + } + continue; + case '7': + if (!attest->set_cid(attest, atoi(optarg))) + { + exit(EXIT_FAILURE); + } + continue; + case '8': + if (!attest->set_kid(attest, atoi(optarg))) + { + exit(EXIT_FAILURE); + } + continue; + case '9': + if (!attest->set_gid(attest, atoi(optarg))) + { + exit(EXIT_FAILURE); + } + continue; + } + break; + } + + switch (op) + { + case OP_USAGE: + usage(); + break; + case OP_PACKAGES: + attest->list_packages(attest); + break; + case OP_PRODUCTS: + attest->list_products(attest); + break; + case OP_KEYS: + attest->list_keys(attest); + break; + case OP_COMPONENTS: + attest->list_components(attest); + break; + case OP_DEVICES: + attest->list_devices(attest); + break; + case OP_DIRECTORIES: + attest->list_directories(attest); + break; + case OP_FILES: + attest->list_files(attest); + break; + case OP_HASHES: + attest->list_hashes(attest); + break; + case OP_MEASUREMENTS: + attest->list_measurements(attest); + break; + case OP_SESSIONS: + attest->list_sessions(attest); + break; + case OP_ADD: + attest->add(attest); + break; + case OP_DEL: + attest->delete(attest); + break; + default: + usage(); + exit(EXIT_FAILURE); + } +} + +int main(int argc, char *argv[]) +{ + char *uri; + + /* enable attest debugging hook */ + dbg = attest_dbg; +#ifdef HAVE_SYSLOG + openlog("attest", 0, LOG_DEBUG); +#endif + + atexit(library_deinit); + + /* initialize library */ + if (!library_init(NULL, "attest")) + { + exit(SS_RC_LIBSTRONGSWAN_INTEGRITY); + } + if (!lib->plugins->load(lib->plugins, + lib->settings->get_str(lib->settings, "attest.load", PLUGINS))) + { + exit(SS_RC_INITIALIZATION_FAILED); + } + + uri = lib->settings->get_str(lib->settings, "attest.database", NULL); + if (!uri) + { + fprintf(stderr, "database URI attest.database not set.\n"); + exit(SS_RC_INITIALIZATION_FAILED); + } + attest = attest_db_create(uri); + if (!attest) + { + exit(SS_RC_INITIALIZATION_FAILED); + } + atexit(cleanup); + libimcv_init(FALSE); + + do_args(argc, argv); + + exit(EXIT_SUCCESS); +} diff --git a/src/libimcv/plugins/imv_attestation/attest_db.c b/src/libimcv/plugins/imv_attestation/attest_db.c new file mode 100644 index 000000000..f85a02b3d --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/attest_db.c @@ -0,0 +1,1995 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE + +#include <stdio.h> +#include <libgen.h> +#include <time.h> + +#include <tncif_names.h> + +#include "attest_db.h" + +#include "imcv.h" +#include "pts/pts_meas_algo.h" +#include "pts/pts_file_meas.h" +#include "pts/components/pts_comp_func_name.h" + +#define IMA_MAX_NAME_LEN 255 +#define DEVICE_MAX_LEN 20 + +typedef struct private_attest_db_t private_attest_db_t; + +/** + * Private data of an attest_db_t object. + */ +struct private_attest_db_t { + + /** + * Public members of attest_db_state_t + */ + attest_db_t public; + + /** + * Component Functional Name to be queried + */ + pts_comp_func_name_t *cfn; + + /** + * Primary key of the Component Functional Name to be queried + */ + int cid; + + /** + * TRUE if Component Functional Name has been set + */ + bool comp_set; + + /** + * Directory containing the Measurement file to be queried + */ + char *dir; + + /** + * Primary key of the directory to be queried + */ + int did; + + /** + * Measurement file to be queried + */ + char *file; + + /** + * Primary key of measurement file to be queried + */ + int fid; + + /** + * Directory where file measurement are to be taken + */ + char *meas_dir; + + /** + * AIK to be queried + */ + chunk_t key; + + /** + * Primary key of the AIK to be queried + */ + int kid; + + /** + * TRUE if AIK has been set + */ + bool key_set; + + /** + * Software package to be queried + */ + char *package; + + /** + * Primary key of software package to be queried + */ + int gid; + + /** + * TRUE if package has been set + */ + bool package_set; + + /** + * Software product to be queried + */ + char *product; + + /** + * Primary key of software product to be queried + */ + int pid; + + /** + * TRUE if product has been set + */ + bool product_set; + + /** + * Software package version to be queried + */ + char *version; + + /** + * TRUE if version has been set + */ + bool version_set; + + /** + * TRUE if relative filenames are to be used + */ + bool relative; + + /** + * TRUE if dates are to be displayed in UTC + */ + bool utc; + + /** + * Package security or blacklist state + */ + os_package_state_t package_state; + + /** + * Sequence number for ordering entries + */ + int seq_no; + + /** + * File measurement hash algorithm + */ + pts_meas_algorithms_t algo; + + /** + * Optional owner (user/host name) + */ + char *owner; + + /** + * Attestation database + */ + database_t *db; + +}; + +char* print_cfn(pts_comp_func_name_t *cfn) +{ + static char buf[BUF_LEN]; + char flags[8]; + int type, vid, name, qualifier, n; + enum_name_t *names, *types; + + vid = cfn->get_vendor_id(cfn), + name = cfn->get_name(cfn); + qualifier = cfn->get_qualifier(cfn); + n = snprintf(buf, BUF_LEN, "0x%06x/0x%08x-0x%02x", vid, name, qualifier); + + names = imcv_pts_components->get_comp_func_names(imcv_pts_components, vid); + types = imcv_pts_components->get_qualifier_type_names(imcv_pts_components, + vid); + type = imcv_pts_components->get_qualifier(imcv_pts_components, cfn, flags); + if (names && types) + { + n = snprintf(buf + n, BUF_LEN - n, " %N/%N [%s] %N", + pen_names, vid, names, name, flags, types, type); + } + return buf; +} + +/** + * Get the directory separator to append to a path + */ +static const char* get_separator(const char *path) +{ + if (streq(path, DIRECTORY_SEPARATOR)) + { /* root directory on Unix file system, no separator */ + return ""; + } + else + { /* non-root or Windows path, use system specific separator */ + return DIRECTORY_SEPARATOR; + } +} + +METHOD(attest_db_t, set_component, bool, + private_attest_db_t *this, char *comp, bool create) +{ + enumerator_t *e; + char *pos1, *pos2; + int vid, name, qualifier; + pts_comp_func_name_t *cfn; + + if (this->comp_set) + { + printf("component has already been set\n"); + return FALSE; + } + + /* parse component string */ + pos1 = strchr(comp, '/'); + pos2 = strchr(comp, '-'); + if (!pos1 || !pos2) + { + printf("component string must have the form \"vendor_id/name-qualifier\"\n"); + return FALSE; + } + vid = atoi(comp); + name = atoi(pos1 + 1); + qualifier = atoi(pos2 + 1); + cfn = pts_comp_func_name_create(vid, name, qualifier); + + e = this->db->query(this->db, + "SELECT id FROM components " + "WHERE vendor_id = ? AND name = ? AND qualifier = ?", + DB_UINT, vid, DB_INT, name, DB_INT, qualifier, DB_INT); + if (e) + { + if (e->enumerate(e, &this->cid)) + { + this->comp_set = TRUE; + this->cfn = cfn; + } + e->destroy(e); + } + if (this->comp_set) + { + return TRUE; + } + + if (!create) + { + printf("component '%s' not found in database\n", print_cfn(cfn)); + cfn->destroy(cfn); + return FALSE; + } + + /* Add a new database entry */ + this->comp_set = this->db->execute(this->db, &this->cid, + "INSERT INTO components (vendor_id, name, qualifier) " + "VALUES (?, ?, ?)", + DB_INT, vid, DB_INT, name, DB_INT, qualifier) == 1; + + printf("component '%s' %sinserted into database\n", print_cfn(cfn), + this->comp_set ? "" : "could not be "); + if (this->comp_set) + { + this->cfn = cfn; + } + else + { + cfn->destroy(cfn); + } + return this->comp_set; +} + +METHOD(attest_db_t, set_cid, bool, + private_attest_db_t *this, int cid) +{ + enumerator_t *e; + int vid, name, qualifier; + + if (this->comp_set) + { + printf("component has already been set\n"); + return FALSE; + } + this->cid = cid; + + e = this->db->query(this->db, "SELECT vendor_id, name, qualifier " + "FROM components WHERE id = ?", + DB_UINT, cid, DB_INT, DB_INT, DB_INT); + if (e) + { + if (e->enumerate(e, &vid, &name, &qualifier)) + { + this->cfn = pts_comp_func_name_create(vid, name, qualifier); + this->comp_set = TRUE; + } + else + { + printf("no component found with cid %d\n", cid); + } + e->destroy(e); + } + return this->comp_set; +} + +METHOD(attest_db_t, set_directory, bool, + private_attest_db_t *this, char *dir, bool create) +{ + enumerator_t *e; + int did; + size_t len; + + if (this->did) + { + printf("directory has already been set\n"); + return FALSE; + } + + /* remove trailing '/' or '\' character if not root directory */ + len = strlen(dir); + if (len > 1 && dir[len-1] == DIRECTORY_SEPARATOR[0]) + { + dir[len-1] = '\0'; + } + this->dir = strdup(dir); + + e = this->db->query(this->db, + "SELECT id FROM directories WHERE path = ?", + DB_TEXT, dir, DB_INT); + if (e) + { + if (e->enumerate(e, &did)) + { + this->did = did; + } + e->destroy(e); + } + if (this->did) + { + return TRUE; + } + + if (!create) + { + printf("directory '%s' not found in database\n", dir); + return FALSE; + } + + /* Add a new database entry */ + if (1 == this->db->execute(this->db, &did, + "INSERT INTO directories (path) VALUES (?)", DB_TEXT, dir)) + { + this->did = did; + } + printf("directory '%s' %sinserted into database\n", dir, + this->did ? "" : "could not be "); + + return this->did > 0; +} + +METHOD(attest_db_t, set_did, bool, + private_attest_db_t *this, int did) +{ + enumerator_t *e; + char *dir; + + if (this->did) + { + printf("directory has already been set\n"); + return FALSE; + } + + e = this->db->query(this->db, "SELECT path FROM directories WHERE id = ?", + DB_UINT, did, DB_TEXT); + if (e) + { + if (e->enumerate(e, &dir)) + { + this->dir = strdup(dir); + this->did = did; + } + else + { + printf("no directory found with did %d\n", did); + } + e->destroy(e); + } + return this->did > 0; +} + +METHOD(attest_db_t, set_file, bool, + private_attest_db_t *this, char *file, bool create) +{ + int fid; + enumerator_t *e; + + if (this->file) + { + printf("file has already been set\n"); + return FALSE; + } + this->file = strdup(file); + + if (!this->did) + { + return TRUE; + } + e = this->db->query(this->db, "SELECT id FROM files " + "WHERE dir = ? AND name = ?", + DB_INT, this->did, DB_TEXT, file, DB_INT); + if (e) + { + if (e->enumerate(e, &fid)) + { + this->fid = fid; + } + e->destroy(e); + } + if (this->fid) + { + return TRUE; + } + + if (!create) + { + printf("file '%s%s%s' not found in database\n", + this->dir, get_separator(this->dir), file); + return FALSE; + } + + /* Add a new database entry */ + if (1 == this->db->execute(this->db, &fid, + "INSERT INTO files (dir, name) VALUES (?, ?)", + DB_INT, this->did, DB_TEXT, file)) + { + this->fid = fid; + } + printf("file '%s%s%s' %sinserted into database\n", this->dir, + get_separator(this->dir), file, this->fid ? "" : "could not be "); + + return this->fid > 0; +} + +METHOD(attest_db_t, set_fid, bool, + private_attest_db_t *this, int fid) +{ + enumerator_t *e; + int did; + char *file; + + if (this->fid) + { + printf("file has already been set\n"); + return FALSE; + } + + e = this->db->query(this->db, "SELECT dir, name FROM files WHERE id = ?", + DB_UINT, fid, DB_INT, DB_TEXT); + if (e) + { + if (e->enumerate(e, &did, &file)) + { + if (did) + { + set_did(this, did); + } + this->file = strdup(file); + this->fid = fid; + } + else + { + printf("no file found with fid %d\n", fid); + } + e->destroy(e); + } + return this->fid > 0; +} + +METHOD(attest_db_t, set_meas_directory, bool, + private_attest_db_t *this, char *dir) +{ + size_t len; + + /* remove trailing '/' character if not root directory */ + len = strlen(dir); + if (len > 1 && dir[len-1] == '/') + { + dir[len-1] = '\0'; + } + this->meas_dir = strdup(dir); + + return TRUE; +} + +METHOD(attest_db_t, set_key, bool, + private_attest_db_t *this, chunk_t key, bool create) +{ + enumerator_t *e; + char *owner; + + if (this->key_set) + { + printf("key has already been set\n"); + return FALSE; + } + this->key = key; + + e = this->db->query(this->db, "SELECT id, owner FROM keys WHERE keyid= ?", + DB_BLOB, this->key, DB_INT, DB_TEXT); + if (e) + { + if (e->enumerate(e, &this->kid, &owner)) + { + free(this->owner); + this->owner = strdup(owner); + this->key_set = TRUE; + } + e->destroy(e); + } + if (this->key_set) + { + return TRUE; + } + + if (!create) + { + printf("key '%#B' not found in database\n", &this->key); + return FALSE; + } + + /* Add a new database entry */ + if (!this->owner) + { + this->owner = strdup(""); + } + this->key_set = this->db->execute(this->db, &this->kid, + "INSERT INTO keys (keyid, owner) VALUES (?, ?)", + DB_BLOB, this->key, DB_TEXT, this->owner) == 1; + + printf("key '%#B' %sinserted into database\n", &this->key, + this->key_set ? "" : "could not be "); + + return this->key_set; + +}; + +METHOD(attest_db_t, set_kid, bool, + private_attest_db_t *this, int kid) +{ + enumerator_t *e; + chunk_t key; + char *owner; + + if (this->key_set) + { + printf("key has already been set\n"); + return FALSE; + } + this->kid = kid; + + e = this->db->query(this->db, "SELECT keyid, owner FROM keys WHERE id = ?", + DB_UINT, kid, DB_BLOB, DB_TEXT); + if (e) + { + if (e->enumerate(e, &key, &owner)) + { + this->owner = strdup(owner); + this->key = chunk_clone(key); + this->key_set = TRUE; + } + else + { + printf("no key found with kid %d\n", kid); + } + e->destroy(e); + } + return this->key_set; + +}; + +METHOD(attest_db_t, set_product, bool, + private_attest_db_t *this, char *product, bool create) +{ + enumerator_t *e; + + if (this->product_set) + { + printf("product has already been set\n"); + return FALSE; + } + this->product = strdup(product); + + e = this->db->query(this->db, "SELECT id FROM products WHERE name = ?", + DB_TEXT, product, DB_INT); + if (e) + { + if (e->enumerate(e, &this->pid)) + { + this->product_set = TRUE; + } + e->destroy(e); + } + if (this->product_set) + { + return TRUE; + } + + if (!create) + { + printf("product '%s' not found in database\n", product); + return FALSE; + } + + /* Add a new database entry */ + this->product_set = this->db->execute(this->db, &this->pid, + "INSERT INTO products (name) VALUES (?)", + DB_TEXT, product) == 1; + + printf("product '%s' %sinserted into database\n", product, + this->product_set ? "" : "could not be "); + + return this->product_set; +} + +METHOD(attest_db_t, set_pid, bool, + private_attest_db_t *this, int pid) +{ + enumerator_t *e; + char *product; + + if (this->product_set) + { + printf("product has already been set\n"); + return FALSE; + } + this->pid = pid; + + e = this->db->query(this->db, "SELECT name FROM products WHERE id = ?", + DB_UINT, pid, DB_TEXT); + if (e) + { + if (e->enumerate(e, &product)) + { + this->product = strdup(product); + this->product_set = TRUE; + } + else + { + printf("no product found with pid %d in database\n", pid); + } + e->destroy(e); + } + return this->product_set; +} + +METHOD(attest_db_t, set_package, bool, + private_attest_db_t *this, char *package, bool create) +{ + enumerator_t *e; + + if (this->package_set) + { + printf("package has already been set\n"); + return FALSE; + } + this->package = strdup(package); + + e = this->db->query(this->db, "SELECT id FROM packages WHERE name = ?", + DB_TEXT, package, DB_INT); + if (e) + { + if (e->enumerate(e, &this->gid)) + { + this->package_set = TRUE; + } + e->destroy(e); + } + if (this->package_set) + { + return TRUE; + } + + if (!create) + { + printf("package '%s' not found in database\n", package); + return FALSE; + } + + /* Add a new database entry */ + this->package_set = this->db->execute(this->db, &this->gid, + "INSERT INTO packages (name) VALUES (?)", + DB_TEXT, package) == 1; + + printf("package '%s' %sinserted into database\n", package, + this->package_set ? "" : "could not be "); + + return this->package_set; +} + +METHOD(attest_db_t, set_gid, bool, + private_attest_db_t *this, int gid) +{ + enumerator_t *e; + char *package; + + if (this->package_set) + { + printf("package has already been set\n"); + return FALSE; + } + this->gid = gid; + + e = this->db->query(this->db, "SELECT name FROM packages WHERE id = ?", + DB_UINT, gid, DB_TEXT); + if (e) + { + if (e->enumerate(e, &package)) + { + this->package = strdup(package); + this->package_set = TRUE; + } + else + { + printf("no package found with gid %d in database\n", gid); + } + e->destroy(e); + } + return this->package_set; +} + +METHOD(attest_db_t, set_version, bool, + private_attest_db_t *this, char *version) +{ + if (this->version_set) + { + printf("version has already been set\n"); + return FALSE; + } + this->version = strdup(version); + this->version_set = TRUE; + + return TRUE; +} + + +METHOD(attest_db_t, set_algo, void, + private_attest_db_t *this, pts_meas_algorithms_t algo) +{ + this->algo = algo; +} + +METHOD(attest_db_t, set_relative, void, + private_attest_db_t *this) +{ + this->relative = TRUE; +} + +METHOD(attest_db_t, set_package_state, void, + private_attest_db_t *this, os_package_state_t package_state) +{ + this->package_state = package_state; +} + +METHOD(attest_db_t, set_sequence, void, + private_attest_db_t *this, int seq_no) +{ + this->seq_no = seq_no; +} + +METHOD(attest_db_t, set_owner, void, + private_attest_db_t *this, char *owner) +{ + free(this->owner); + this->owner = strdup(owner); +} + +METHOD(attest_db_t, set_utc, void, + private_attest_db_t *this) +{ + this->utc = TRUE; +} + +METHOD(attest_db_t, list_components, void, + private_attest_db_t *this) +{ + enumerator_t *e; + pts_comp_func_name_t *cfn; + int seq_no, cid, vid, name, qualifier, count = 0; + + if (this->kid) + { + e = this->db->query(this->db, + "SELECT kc.seq_no, c.id, c.vendor_id, c.name, c.qualifier " + "FROM components AS c " + "JOIN key_component AS kc ON c.id = kc.component " + "WHERE kc.key = ? ORDER BY kc.seq_no", + DB_UINT, this->kid, DB_INT, DB_INT, DB_INT, DB_INT, DB_INT); + if (e) + { + while (e->enumerate(e, &cid, &seq_no, &vid, &name, &qualifier)) + { + cfn = pts_comp_func_name_create(vid, name, qualifier); + printf("%4d: #%-2d %s\n", seq_no, cid, print_cfn(cfn)); + cfn->destroy(cfn); + count++; + } + e->destroy(e); + printf("%d component%s found for key %#B\n", count, + (count == 1) ? "" : "s", &this->key); + } + } + else + { + e = this->db->query(this->db, + "SELECT id, vendor_id, name, qualifier FROM components " + "ORDER BY vendor_id, name, qualifier", + DB_INT, DB_INT, DB_INT, DB_INT); + if (e) + { + while (e->enumerate(e, &cid, &vid, &name, &qualifier)) + { + cfn = pts_comp_func_name_create(vid, name, qualifier); + printf("%4d: %s\n", cid, print_cfn(cfn)); + cfn->destroy(cfn); + count++; + } + e->destroy(e); + printf("%d component%s found\n", count, (count == 1) ? "" : "s"); + } + } +} + +METHOD(attest_db_t, list_devices, void, + private_attest_db_t *this) +{ + enumerator_t *e, *e_ar; + chunk_t ar_id_value = chunk_empty; + char *product, *device; + time_t timestamp; + int id, last_id = 0, ar_id = 0, last_ar_id = 0, device_count = 0; + int session_id, rec; + u_int32_t ar_id_type; + u_int tstamp; + + e = this->db->query(this->db, + "SELECT d.id, d.value, s.id, s.time, s.identity, s.rec, p.name " + "FROM devices AS d " + "JOIN sessions AS s ON d.id = s.device " + "JOIN products AS p ON p.id = s.product " + "ORDER BY d.value, s.time DESC", DB_INT, DB_TEXT, DB_INT, DB_UINT, + DB_INT, DB_INT, DB_TEXT); + + if (e) + { + while (e->enumerate(e, &id, &device, &session_id, &tstamp, &ar_id, &rec, + &product)) + { + if (id != last_id) + { + printf("%4d: %s - %s\n", id, device, product); + device_count++; + last_id = id; + } + timestamp = tstamp; + printf("%4d: %T", session_id, ×tamp, this->utc); + if (ar_id) + { + if (ar_id != last_ar_id) + { + chunk_free(&ar_id_value); + e_ar = this->db->query(this->db, + "SELECT type, value FROM identities " + "WHERE id = ?", DB_INT, ar_id, DB_INT, DB_BLOB); + if (e_ar) + { + e_ar->enumerate(e_ar, &ar_id_type, &ar_id_value); + ar_id_value = chunk_clone(ar_id_value); + e_ar->destroy(e_ar); + } + } + if (ar_id_value.len) + { + printf(" %.*s", (int)ar_id_value.len, ar_id_value.ptr); + } + last_ar_id = ar_id; + } + printf(" - %N\n", TNC_IMV_Action_Recommendation_names, rec); + } + e->destroy(e); + free(ar_id_value.ptr); + + printf("%d device%s found\n", device_count, + (device_count == 1) ? "" : "s"); + } +} + +METHOD(attest_db_t, list_keys, void, + private_attest_db_t *this) +{ + enumerator_t *e; + chunk_t keyid; + char *owner; + int kid, count = 0; + + if (this->cid) + { + e = this->db->query(this->db, + "SELECT k.id, k.keyid, k.owner FROM keys AS k " + "JOIN key_component AS kc ON k.id = kc.key " + "WHERE kc.component = ? ORDER BY k.keyid", + DB_UINT, this->cid, DB_INT, DB_BLOB, DB_TEXT); + if (e) + { + while (e->enumerate(e, &kid, &keyid, &owner)) + { + printf("%4d: %#B '%s'\n", kid, &keyid, owner); + count++; + } + e->destroy(e); + } + } + else + { + e = this->db->query(this->db, "SELECT id, keyid, owner FROM keys " + "ORDER BY keyid", + DB_INT, DB_BLOB, DB_TEXT); + if (e) + { + while (e->enumerate(e, &kid, &keyid, &owner)) + { + printf("%4d: %#B '%s'\n", kid, &keyid, owner); + count++; + } + e->destroy(e); + } + } + + printf("%d key%s found", count, (count == 1) ? "" : "s"); + if (this->comp_set) + { + printf(" for component '%s'", print_cfn(this->cfn)); + } + printf("\n"); +} + +METHOD(attest_db_t, list_files, void, + private_attest_db_t *this) +{ + enumerator_t *e; + char *dir, *file; + int did, last_did = 0, fid, count = 0; + + if (this->did) + { + e = this->db->query(this->db, + "SELECT id, name FROM files WHERE dir = ? ORDER BY name", + DB_INT, this->did, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &fid, &file)) + { + printf("%4d: %s\n", fid, file); + count++; + } + e->destroy(e); + } + printf("%d file%s found in directory '%s'\n", count, + (count == 1) ? "" : "s", this->dir); + } + else + { + e = this->db->query(this->db, + "SELECT d.id, d.path, f.id, f.name FROM files AS f " + "JOIN directories AS d ON f.dir = d.id " + "ORDER BY d.path, f.name", + DB_INT, DB_TEXT, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &did, &dir, &fid, &file)) + { + if (did != last_did) + { + printf("%4d: %s\n", did, dir); + last_did = did; + } + printf("%4d: %s\n", fid, file); + count++; + } + e->destroy(e); + } + printf("%d file%s found\n", count, (count == 1) ? "" : "s"); + } +} + +METHOD(attest_db_t, list_directories, void, + private_attest_db_t *this) +{ + enumerator_t *e; + char *dir; + int did, count = 0; + + if (this->file) + { + e = this->db->query(this->db, + "SELECT d.id, d.path FROM directories AS d " + "JOIN files AS f ON f.dir = d.id WHERE f.name = ? " + "ORDER BY path", DB_TEXT, this->file, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &did, &dir)) + { + printf("%4d: %s\n", did, dir); + count++; + } + e->destroy(e); + } + printf("%d director%s found containing file '%s'\n", count, + (count == 1) ? "y" : "ies", this->file); + } + else + { + e = this->db->query(this->db, + "SELECT id, path FROM directories ORDER BY path", + DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &did, &dir)) + { + printf("%4d: %s\n", did, dir); + count++; + } + e->destroy(e); + } + printf("%d director%s found\n", count, (count == 1) ? "y" : "ies"); + } +} + +METHOD(attest_db_t, list_packages, void, + private_attest_db_t *this) +{ + enumerator_t *e; + char *package, *version; + os_package_state_t package_state; + int blacklist, security, gid, gid_old = 0, spaces, count = 0, t; + time_t timestamp; + + if (this->pid) + { + e = this->db->query(this->db, + "SELECT p.id, p.name, " + "v.release, v.security, v.blacklist, v.time " + "FROM packages AS p JOIN versions AS v ON v.package = p.id " + "WHERE v.product = ? ORDER BY p.name, v.release", + DB_INT, this->pid, + DB_INT, DB_TEXT, DB_TEXT, DB_INT, DB_INT, DB_INT); + if (e) + { + while (e->enumerate(e, &gid, &package, + &version, &security, &blacklist, &t)) + { + if (gid != gid_old) + { + printf("%5d: %s,", gid, package); + gid_old = gid; + } + else + { + spaces = 8 + strlen(package); + while (spaces--) + { + printf(" "); + } + } + timestamp = t; + if (blacklist) + { + package_state = OS_PACKAGE_STATE_BLACKLIST; + } + else + { + package_state = security ? OS_PACKAGE_STATE_SECURITY : + OS_PACKAGE_STATE_UPDATE; + } + printf(" %T (%s)%N\n", ×tamp, this->utc, version, + os_package_state_names, package_state); + count++; + } + e->destroy(e); + } + } + else + { + e = this->db->query(this->db, "SELECT id, name FROM packages " + "ORDER BY name", + DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &gid, &package)) + { + printf("%4d: %s\n", gid, package); + count++; + } + e->destroy(e); + } + } + + printf("%d package%s found", count, (count == 1) ? "" : "s"); + if (this->product_set) + { + printf(" for product '%s'", this->product); + } + printf("\n"); +} + +METHOD(attest_db_t, list_products, void, + private_attest_db_t *this) +{ + enumerator_t *e; + char *product; + int pid, meas, meta, count = 0; + + if (this->fid) + { + e = this->db->query(this->db, + "SELECT p.id, p.name, pf.measurement, pf.metadata " + "FROM products AS p " + "JOIN product_file AS pf ON p.id = pf.product " + "WHERE pf.file = ? ORDER BY p.name", + DB_UINT, this->fid, DB_INT, DB_TEXT, DB_INT, DB_INT); + if (e) + { + while (e->enumerate(e, &pid, &product, &meas, &meta)) + { + printf("%4d: |%s%s| %s\n", pid, meas ? "M":" ", meta ? "T":" ", + product); + count++; + } + e->destroy(e); + } + } + else + { + e = this->db->query(this->db, "SELECT id, name FROM products " + "ORDER BY name", + DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &pid, &product)) + { + printf("%4d: %s\n", pid, product); + count++; + } + e->destroy(e); + } + } + + printf("%d product%s found", count, (count == 1) ? "" : "s"); + if (this->fid) + { + printf(" for file '%s'", this->file); + } + printf("\n"); +} + +METHOD(attest_db_t, list_hashes, void, + private_attest_db_t *this) +{ + enumerator_t *e; + chunk_t hash; + char *file, *dir, *product; + int id, fid, fid_old = 0, did, did_old = 0, pid, pid_old = 0, count = 0; + + if (this->pid && this->fid && this->did) + { + printf("%4d: %s\n", this->did, this->dir); + printf("%4d: %s\n", this->fid, this->file); + e = this->db->query(this->db, + "SELECT id, hash FROM file_hashes " + "WHERE algo = ? AND file = ? AND product = ?", + DB_INT, this->algo, DB_INT, this->fid, DB_INT, this->pid, + DB_INT, DB_BLOB); + if (e) + { + while (e->enumerate(e, &id, &hash)) + { + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for product '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", this->product); + } + } + else if (this->pid && this->file) + { + e = this->db->query(this->db, + "SELECT h.id, h.hash, f.id, d.id, d.path " + "FROM file_hashes AS h " + "JOIN files AS f ON h.file = f.id " + "JOIN directories AS d ON f.dir = d.id " + "WHERE h.algo = ? AND h.product = ? AND f.name = ? " + "ORDER BY d.path, f.name, h.hash", + DB_INT, this->algo, DB_INT, this->pid, DB_TEXT, this->file, + DB_INT, DB_BLOB, DB_INT, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &fid, &did, &dir)) + { + if (did != did_old) + { + printf("%4d: %s\n", did, dir); + did_old = did; + } + if (fid != fid_old) + { + printf("%4d: %s\n", fid, this->file); + fid_old = fid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for product '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", this->product); + } + } + else if (this->pid && this->did) + { + printf("%4d: %s\n", this->did, this->dir); + e = this->db->query(this->db, + "SELECT h.id, h.hash, f.id, f.name " + "FROM file_hashes AS h " + "JOIN files AS f ON h.file = f.id " + "WHERE h.algo = ? AND h.product = ? AND f.dir = ? " + "ORDER BY f.name, h.hash", + DB_INT, this->algo, DB_INT, this->pid, DB_INT, this->did, + DB_INT, DB_BLOB, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &fid, &file)) + { + if (fid != fid_old) + { + printf("%4d: %s\n", fid, file); + fid_old = fid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for product '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", this->product); + } + } + else if (this->pid) + { + e = this->db->query(this->db, + "SELECT h.id, h.hash, f.id, f.name, d.id, d.path " + "FROM file_hashes AS h " + "JOIN files AS f ON h.file = f.id " + "JOIN directories AS d ON f.dir = d.id " + "WHERE h.algo = ? AND h.product = ? " + "ORDER BY d.path, f.name, h.hash", + DB_INT, this->algo, DB_INT, this->pid, + DB_INT, DB_BLOB, DB_INT, DB_TEXT, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &fid, &file, &did, &dir)) + { + if (did != did_old) + { + printf("%4d: %s\n", did, dir); + did_old = did; + } + if (fid != fid_old) + { + printf("%4d: %s\n", fid, file); + fid_old = fid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for product '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", this->product); + } + } + else if (this->fid && this->did) + { + e = this->db->query(this->db, + "SELECT h.id, h.hash, p.id, p.name FROM file_hashes AS h " + "JOIN products AS p ON h.product = p.id " + "WHERE h.algo = ? AND h.file = ? " + "ORDER BY p.name, h.hash", + DB_INT, this->algo, DB_INT, this->fid, + DB_INT, DB_BLOB, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &pid, &product)) + { + if (pid != pid_old) + { + printf("%4d: %s\n", pid, product); + pid_old = pid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for file '%s%s%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", this->dir, + get_separator(this->dir), this->file); + } + } + else if (this->file) + { + e = this->db->query(this->db, + "SELECT h.id, h.hash, f.id, d.id, d.path, p.id, p.name " + "FROM file_hashes AS h " + "JOIN files AS f ON h.file = f.id " + "JOIN directories AS d ON f.dir = d.id " + "JOIN products AS p ON h.product = p.id " + "WHERE h.algo = ? AND f.name = ? " + "ORDER BY d.path, f.name, p.name, h.hash", + DB_INT, this->algo, DB_TEXT, this->file, + DB_INT, DB_BLOB, DB_INT, DB_INT, DB_TEXT, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &fid, &did, &dir, &pid, &product)) + { + if (did != did_old) + { + printf("%4d: %s\n", did, dir); + did_old = did; + } + if (fid != fid_old) + { + printf("%4d: %s\n", fid, this->file); + fid_old = fid; + pid_old = 0; + } + if (pid != pid_old) + { + printf("%4d: %s\n", pid, product); + pid_old = pid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found\n", count, pts_meas_algorithm_names, + this->algo, (count == 1) ? "" : "s"); + } + + } + else if (this->did) + { + e = this->db->query(this->db, + "SELECT h.id, h.hash, f.id, f.name, p.id, p.name " + "FROM file_hashes AS h " + "JOIN files AS f ON h.file = f.id " + "JOIN products AS p ON h.product = p.id " + "WHERE h.algo = ? AND f.dir = ? " + "ORDER BY f.name, p.name, h.hash", + DB_INT, this->algo, DB_INT, this->did, + DB_INT, DB_BLOB, DB_INT, DB_TEXT, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &fid, &file, &pid, &product)) + { + if (fid != fid_old) + { + printf("%4d: %s\n", fid, file); + fid_old = fid; + pid_old = 0; + } + if (pid != pid_old) + { + printf("%4d: %s\n", pid, product); + pid_old = pid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for directory '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", this->dir); + } + } + else + { + e = this->db->query(this->db, + "SELECT h.id, h.hash, f.id, f.name, d.id, d.path, p.id, p.name " + "FROM file_hashes AS h " + "JOIN files AS f ON h.file = f.id " + "JOIN directories AS d ON f.dir = d.id " + "JOIN products AS p on h.product = p.id " + "WHERE h.algo = ? " + "ORDER BY d.path, f.name, p.name, h.hash", + DB_INT, this->algo, DB_INT, DB_BLOB, DB_INT, DB_TEXT, + DB_INT, DB_TEXT, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &hash, &fid, &file, &did, &dir, &pid, + &product)) + { + if (did != did_old) + { + printf("%4d: %s\n", did, dir); + did_old = did; + } + if (fid != fid_old) + { + printf("%4d: %s\n", fid, file); + fid_old = fid; + pid_old = 0; + } + if (pid != pid_old) + { + printf("%4d: %s\n", pid, product); + pid_old = pid; + } + printf("%4d: %#B\n", id, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found\n", count, pts_meas_algorithm_names, + this->algo, (count == 1) ? "" : "s"); + } + } +} + +METHOD(attest_db_t, list_measurements, void, + private_attest_db_t *this) +{ + enumerator_t *e; + chunk_t hash, keyid; + pts_comp_func_name_t *cfn; + char *owner; + int seq_no, pcr, vid, name, qualifier; + int cid, cid_old = 0, kid, kid_old = 0, count = 0; + + if (this->kid && this->cid) + { + e = this->db->query(this->db, + "SELECT ch.seq_no, ch.pcr, ch.hash, k.owner " + "FROM component_hashes AS ch " + "JOIN keys AS k ON k.id = ch.key " + "WHERE ch.algo = ? AND ch.key = ? AND ch.component = ? " + "ORDER BY seq_no", + DB_INT, this->algo, DB_UINT, this->kid, DB_UINT, this->cid, + DB_INT, DB_INT, DB_BLOB, DB_TEXT); + if (e) + { + while (e->enumerate(e, &seq_no, &pcr, &hash, &owner)) + { + if (this->kid != kid_old) + { + printf("%4d: %#B '%s'\n", this->kid, &this->key, owner); + kid_old = this->kid; + } + printf("%7d %02d %#B\n", seq_no, pcr, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for component '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", print_cfn(this->cfn)); + } + } + else if (this->cid) + { + e = this->db->query(this->db, + "SELECT ch.seq_no, ch.pcr, ch.hash, k.id, k.keyid, k.owner " + "FROM component_hashes AS ch " + "JOIN keys AS k ON k.id = ch.key " + "WHERE ch.algo = ? AND ch.component = ? " + "ORDER BY keyid, seq_no", + DB_INT, this->algo, DB_UINT, this->cid, + DB_INT, DB_INT, DB_BLOB, DB_INT, DB_BLOB, DB_TEXT); + if (e) + { + while (e->enumerate(e, &seq_no, &pcr, &hash, &kid, &keyid, &owner)) + { + if (kid != kid_old) + { + printf("%4d: %#B '%s'\n", kid, &keyid, owner); + kid_old = kid; + } + printf("%7d %02d %#B\n", seq_no, pcr, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for component '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", print_cfn(this->cfn)); + } + + } + else if (this->kid) + { + e = this->db->query(this->db, + "SELECT ch.seq_no, ch.pcr, ch.hash, " + "c.id, c.vendor_id, c.name, c.qualifier " + "FROM component_hashes AS ch " + "JOIN components AS c ON c.id = ch.component " + "WHERE ch.algo = ? AND ch.key = ? " + "ORDER BY vendor_id, name, qualifier, seq_no", + DB_INT, this->algo, DB_UINT, this->kid, DB_INT, DB_INT, DB_BLOB, + DB_INT, DB_INT, DB_INT, DB_INT); + if (e) + { + while (e->enumerate(e, &seq_no, &pcr, &hash, &cid, &vid, &name, + &qualifier)) + { + if (cid != cid_old) + { + cfn = pts_comp_func_name_create(vid, name, qualifier); + printf("%4d: %s\n", cid, print_cfn(cfn)); + cfn->destroy(cfn); + cid_old = cid; + } + printf("%5d %02d %#B\n", seq_no, pcr, &hash); + count++; + } + e->destroy(e); + + printf("%d %N value%s found for key %#B '%s'\n", count, + pts_meas_algorithm_names, this->algo, + (count == 1) ? "" : "s", &this->key, this->owner); + } + } +} + +METHOD(attest_db_t, list_sessions, void, + private_attest_db_t *this) +{ + enumerator_t *e; + chunk_t identity; + char *product, *device; + int session_id, conn_id, rec, device_len; + time_t created; + u_int t; + + e = this->db->query(this->db, + "SELECT s.id, s.time, s.connection, s.rec, p.name, d.value, i.value " + "FROM sessions AS s " + "LEFT JOIN products AS p ON s.product = p.id " + "LEFT JOIN devices AS d ON s.device = d.id " + "LEFT JOIN identities AS i ON s.identity = i.id " + "ORDER BY s.time DESC", + DB_INT, DB_UINT, DB_INT, DB_INT, DB_TEXT, DB_TEXT, DB_BLOB); + if (e) + { + while (e->enumerate(e, &session_id, &t, &conn_id, &rec, &product, + &device, &identity)) + { + created = t; + product = product ? product : "-"; + device = strlen(device) ? device : "-"; + device_len = min(strlen(device), DEVICE_MAX_LEN); + identity = identity.len ? identity : chunk_from_str("-"); + printf("%4d: %T %2d %-20s %.*s%*s%.*s - %N\n", session_id, &created, + this->utc, conn_id, product, device_len, device, + DEVICE_MAX_LEN - device_len + 1, " ", (int)identity.len, + identity.ptr, TNC_IMV_Action_Recommendation_names, rec); + } + e->destroy(e); + } +} + +/** + * Insert a file hash into the database + */ +static bool insert_file_hash(private_attest_db_t *this, + pts_meas_algorithms_t algo, + chunk_t measurement, int fid, + int *hashes_added, int *hashes_updated) +{ + enumerator_t *e; + chunk_t hash; + char *label; + bool insert = TRUE, update = FALSE; + + label = "could not be created"; + + e = this->db->query(this->db, + "SELECT hash FROM file_hashes WHERE algo = ? " + "AND file = ? AND product = ? AND device = 0", + DB_INT, algo, DB_UINT, fid, DB_UINT, this->pid, DB_BLOB); + + if (!e) + { + printf("file_hashes query failed\n"); + return FALSE; + } + + while (e->enumerate(e, &hash)) + { + update = TRUE; + + if (chunk_equals(measurement, hash)) + { + label = "exists and equals"; + insert = FALSE; + break; + } + } + e->destroy(e); + + if (insert) + { + if (this->db->execute(this->db, NULL, + "INSERT INTO file_hashes " + "(file, product, device, algo, hash) " + "VALUES (?, ?, 0, ?, ?)", + DB_UINT, fid, DB_UINT, this->pid, + DB_INT, algo, DB_BLOB, measurement) != 1) + { + printf("file_hash insertion failed\n"); + return FALSE; + } + if (update) + { + label = "updated"; + (*hashes_updated)++; + } + else + { + label = "created"; + (*hashes_added)++; + } + } + printf(" %#B - %s\n", &measurement, label); + return TRUE; +} + +/** + * Add hash measurement for a single file or all files in a directory + */ +static bool add_hash(private_attest_db_t *this) +{ + char *pathname, *filename, *label; + const char *sep; + pts_file_meas_t *measurements; + chunk_t measurement; + hasher_t *hasher = NULL; + int fid, files_added = 0, hashes_added = 0, hashes_updated = 0; + enumerator_t *enumerator, *e; + + if (!this->meas_dir) + { + this->meas_dir = strdup(this->dir); + } + sep = get_separator(this->meas_dir); + + if (this->fid) + { + /* build pathname from directory path and relative filename */ + if (asprintf(&pathname, "%s%s%s", this->meas_dir, sep, this->file) == -1) + { + return FALSE; + } + measurements = pts_file_meas_create_from_path(0, pathname, FALSE, + TRUE, this->algo); + free(pathname); + } + else + { + measurements = pts_file_meas_create_from_path(0, this->meas_dir, TRUE, + TRUE, this->algo); + } + if (!measurements) + { + printf("file measurement failed\n"); + DESTROY_IF(hasher); + return FALSE; + } + + enumerator = measurements->create_enumerator(measurements); + while (enumerator->enumerate(enumerator, &filename, &measurement)) + { + if (this->fid) + { + /* a single file already exists */ + filename = this->file; + fid = this->fid; + label = "exists"; + } + else + { + /* retrieve or create filename */ + label = "could not be created"; + + e = this->db->query(this->db, + "SELECT id FROM files WHERE name = ? AND dir = ?", + DB_TEXT, filename, DB_INT, this->did, DB_INT); + if (!e) + { + printf("files query failed\n"); + break; + } + if (e->enumerate(e, &fid)) + { + label = "exists"; + } + else + { + if (this->db->execute(this->db, &fid, + "INSERT INTO files (name, dir) VALUES (?, ?)", + DB_TEXT, filename, DB_INT, this->did) == 1) + { + label = "created"; + files_added++; + } + } + e->destroy(e); + } + printf("%4d: %s - %s\n", fid, filename, label); + + /* compute file measurement hash */ + if (!insert_file_hash(this, this->algo, measurement, fid, + &hashes_added, &hashes_updated)) + { + break; + } + } + enumerator->destroy(enumerator); + + printf("%d measurements, added %d new files, %d file hashes, " + "updated %d file hashes\n", + measurements->get_file_count(measurements), + files_added, hashes_added, hashes_updated); + measurements->destroy(measurements); + + return TRUE; +} + +METHOD(attest_db_t, add, bool, + private_attest_db_t *this) +{ + bool success = FALSE; + + /* add directory or file hash measurement for a given product */ + if (this->did && this->pid) + { + return add_hash(this); + } + + /* insert package version */ + if (this->version_set && this->gid && this->pid) + { + time_t t = time(NULL); + int security, blacklist; + + security = this->package_state == OS_PACKAGE_STATE_SECURITY; + blacklist = this->package_state == OS_PACKAGE_STATE_BLACKLIST; + + success = this->db->execute(this->db, NULL, + "INSERT INTO versions " + "(package, product, release, security, blacklist, time) " + "VALUES (?, ?, ?, ?, ?, ?)", + DB_UINT, this->gid, DB_INT, this->pid, DB_TEXT, + this->version, DB_INT, security, DB_INT, blacklist, + DB_INT, t) == 1; + + printf("'%s' package %s (%s)%N %sinserted into database\n", + this->product, this->package, this->version, + os_package_state_names, this->package_state, + success ? "" : "could not be "); + } + return success; +} + +METHOD(attest_db_t, delete, bool, + private_attest_db_t *this) +{ + bool success; + int id, count = 0; + char *name; + enumerator_t *e; + + /* delete a file measurement hash for a given product */ + if (this->algo && this->pid && this->fid) + { + success = this->db->execute(this->db, NULL, + "DELETE FROM file_hashes " + "WHERE algo = ? AND product = ? AND file = ?", + DB_UINT, this->algo, DB_UINT, this->pid, + DB_UINT, this->fid) > 0; + + printf("%4d: %s%s%s\n", this->fid, this->dir, get_separator(this->dir), + this->file); + printf("%N value for product '%s' %sdeleted from database\n", + pts_meas_algorithm_names, this->algo, this->product, + success ? "" : "could not be "); + + return success; + } + + /* delete product/file entries */ + if (this->pid && (this->fid || this->did)) + { + success = this->db->execute(this->db, NULL, + "DELETE FROM product_file " + "WHERE product = ? AND file = ?", + DB_UINT, this->pid, + DB_UINT, this->fid ? this->fid : this->did) > 0; + + printf("product/file pair (%d/%d) %sdeleted from database\n", + this->pid, this->fid ? this->fid : this->did, + success ? "" : "could not be "); + + return success; + } + + if (this->cid) + { + success = this->db->execute(this->db, NULL, + "DELETE FROM components WHERE id = ?", + DB_UINT, this->cid) > 0; + + printf("component '%s' %sdeleted from database\n", print_cfn(this->cfn), + success ? "" : "could not be "); + return success; + } + + if (this->fid) + { + success = this->db->execute(this->db, NULL, + "DELETE FROM files WHERE id = ?", + DB_UINT, this->fid) > 0; + + printf("file '%s%s%s' %sdeleted from database\n", this->dir, + get_separator(this->dir), this->file, + success ? "" : "could not be "); + return success; + } + + if (this->did) + { + e = this->db->query(this->db, + "SELECT id, name FROM files WHERE dir = ? ORDER BY name", + DB_INT, this->did, DB_INT, DB_TEXT); + if (e) + { + while (e->enumerate(e, &id, &name)) + { + printf("%4d: %s\n", id, name); + count++; + } + e->destroy(e); + + if (count) + { + printf("%d dependent file%s found, " + "directory '%s' could not deleted\n", + count, (count == 1) ? "" : "s", this->dir); + return FALSE; + } + } + success = this->db->execute(this->db, NULL, + "DELETE FROM directories WHERE id = ?", + DB_UINT, this->did) > 0; + printf("directory '%s' %sdeleted from database\n", this->dir, + success ? "" : "could not be "); + return success; + } + + if (this->kid) + { + success = this->db->execute(this->db, NULL, + "DELETE FROM keys WHERE id = ?", + DB_UINT, this->kid) > 0; + + printf("key %#B %sdeleted from database\n", &this->key, + success ? "" : "could not be "); + return success; + } + if (this->pid) + { + success = this->db->execute(this->db, NULL, + "DELETE FROM products WHERE id = ?", + DB_UINT, this->pid) > 0; + + printf("product '%s' %sdeleted from database\n", this->product, + success ? "" : "could not be "); + return success; + } + + printf("empty delete command\n"); + return FALSE; +} + +METHOD(attest_db_t, destroy, void, + private_attest_db_t *this) +{ + DESTROY_IF(this->db); + DESTROY_IF(this->cfn); + free(this->package); + free(this->product); + free(this->version); + free(this->file); + free(this->dir); + free(this->meas_dir); + free(this->owner); + free(this->key.ptr); + free(this); +} + +/** + * Described in header. + */ +attest_db_t *attest_db_create(char *uri) +{ + private_attest_db_t *this; + + INIT(this, + .public = { + .set_component = _set_component, + .set_cid = _set_cid, + .set_directory = _set_directory, + .set_did = _set_did, + .set_file = _set_file, + .set_fid = _set_fid, + .set_meas_directory = _set_meas_directory, + .set_key = _set_key, + .set_kid = _set_kid, + .set_package = _set_package, + .set_gid = _set_gid, + .set_product = _set_product, + .set_pid = _set_pid, + .set_version = _set_version, + .set_algo = _set_algo, + .set_relative = _set_relative, + .set_package_state = _set_package_state, + .set_sequence = _set_sequence, + .set_owner = _set_owner, + .set_utc = _set_utc, + .list_packages = _list_packages, + .list_products = _list_products, + .list_files = _list_files, + .list_directories = _list_directories, + .list_components = _list_components, + .list_devices = _list_devices, + .list_keys = _list_keys, + .list_hashes = _list_hashes, + .list_measurements = _list_measurements, + .list_sessions = _list_sessions, + .add = _add, + .delete = _delete, + .destroy = _destroy, + }, + .db = lib->db->create(lib->db, uri), + ); + + if (!this->db) + { + fprintf(stderr, "opening database failed.\n"); + destroy(this); + return NULL; + } + + return &this->public; +} diff --git a/src/libimcv/plugins/imv_attestation/attest_db.h b/src/libimcv/plugins/imv_attestation/attest_db.h new file mode 100644 index 000000000..ab3d046b3 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/attest_db.h @@ -0,0 +1,267 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup attest_db_t attest_db + * @{ @ingroup libimcv + */ + +#ifndef ATTEST_DB_H_ +#define ATTEST_DB_H_ + +#include <pts/pts_meas_algo.h> +#include <os_info/os_info.h> +#include <library.h> + +typedef struct attest_db_t attest_db_t; + +/** + * Attestation database object + */ +struct attest_db_t { + + /** + * Set functional component to be queried + * + * @param comp functional component + * @param create if TRUE create database entry if it doesn't exist + * @return TRUE if successful + */ + bool (*set_component)(attest_db_t *this, char *comp, bool create); + + /** + * Set primary key of the functional component to be queried + * + * @param fid primary key of functional component + * @return TRUE if successful + */ + bool (*set_cid)(attest_db_t *this, int fid); + + /** + * Set directory to be queried + * + * @param dir directory + * @param create if TRUE create database entry if it doesn't exist + * @return TRUE if successful + */ + bool (*set_directory)(attest_db_t *this, char *dir, bool create); + + /** + * Set primary key of the directory to be queried + * + * @param did primary key of directory + * @return TRUE if successful + */ + bool (*set_did)(attest_db_t *this, int did); + + /** + * Set measurement file to be queried + * + * @param file measurement file + * @param create if TRUE create database entry if it doesn't exist + * @return TRUE if successful + */ + bool (*set_file)(attest_db_t *this, char *file, bool create); + + /** + * Set primary key of the measurement file to be queried + * + * @param fid primary key of measurement file + * @return TRUE if successful + */ + bool (*set_fid)(attest_db_t *this, int fid); + + /** + * Set path to directory where file[s] are to be measured + * + * @param meas_dir measurement directory + * @return TRUE if successful + */ + bool (*set_meas_directory)(attest_db_t *this, char *dir); + + /** + * Set functional component to be queried + * + * @param key AIK + * @param create if TRUE create database entry if it doesn't exist + * @return TRUE if successful + */ + bool (*set_key)(attest_db_t *this, chunk_t key, bool create); + + /** + * Set primary key of the AIK to be queried + * + * @param kid primary key of AIK + * @return TRUE if successful + */ + bool (*set_kid)(attest_db_t *this, int kid); + + /** + * Set software package to be queried + * + * @param product software package + * @param create if TRUE create database entry if it doesn't exist + * @return TRUE if successful + */ + bool (*set_package)(attest_db_t *this, char *package, bool create); + + /** + * Set primary key of the software package to be queried + * + * @param gid primary key of software package + * @return TRUE if successful + */ + bool (*set_gid)(attest_db_t *this, int gid); + + /** + * Set software product to be queried + * + * @param product software product + * @param create if TRUE create database entry if it doesn't exist + * @return TRUE if successful + */ + bool (*set_product)(attest_db_t *this, char *product, bool create); + + /** + * Set primary key of the software product to be queried + * + * @param pid primary key of software product + * @return TRUE if successful + */ + bool (*set_pid)(attest_db_t *this, int pid); + + /** + * Set software package version to be queried + * + * @param version software package version + * @return TRUE if successful + */ + bool (*set_version)(attest_db_t *this, char *version); + + /** + * Set measurement hash algorithm + * + * @param algo hash algorithm + */ + void (*set_algo)(attest_db_t *this, pts_meas_algorithms_t algo); + + /** + * Set that the IMA-specific SHA-1 template hash be computed + */ + void (*set_ima)(attest_db_t *this); + + /** + * Set that relative filenames are to be used + */ + void (*set_relative)(attest_db_t *this); + + /** + * Set the package security or blacklist state + */ + void (*set_package_state)(attest_db_t *this, os_package_state_t package_state); + + /** + * Set the sequence number + */ + void (*set_sequence)(attest_db_t *this, int seq_no); + + /** + * Set owner [user/host] of an AIK + * + * @param owner user/host name + * @return TRUE if successful + */ + void (*set_owner)(attest_db_t *this, char *owner); + + /** + * Display all dates in UTC + */ + void (*set_utc)(attest_db_t *this); + + /** + * List all packages stored in the database + */ + void (*list_packages)(attest_db_t *this); + + /** + * List all products stored in the database + */ + void (*list_products)(attest_db_t *this); + + /** + * List all directories stored in the database + */ + void (*list_directories)(attest_db_t *this); + + /** + * List selected files stored in the database + */ + void (*list_files)(attest_db_t *this); + + /** + * List all components stored in the database + */ + void (*list_components)(attest_db_t *this); + + /** + * List all devices stored in the database + */ + void (*list_devices)(attest_db_t *this); + + /** + * List all AIKs stored in the database + */ + void (*list_keys)(attest_db_t *this); + + /** + * List selected measurement hashes stored in the database + */ + void (*list_hashes)(attest_db_t *this); + + /** + * List selected component measurement stored in the database + */ + void (*list_measurements)(attest_db_t *this); + + /** + * List sessions stored in the database + */ + void (*list_sessions)(attest_db_t *this); + + /** + * Add an entry to the database + */ + bool (*add)(attest_db_t *this); + + /** + * Delete an entry from the database + */ + bool (*delete)(attest_db_t *this); + + /** + * Destroy attest_db_t object + */ + void (*destroy)(attest_db_t *this); + +}; + +/** + * Create an attest_db_t instance + * + * @param uri database URI + */ +attest_db_t* attest_db_create(char *uri); + +#endif /** ATTEST_DB_H_ @}*/ diff --git a/src/libimcv/plugins/imv_attestation/attest_usage.c b/src/libimcv/plugins/imv_attestation/attest_usage.c new file mode 100644 index 000000000..8f4afdbad --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/attest_usage.c @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <stdio.h> + +#include "attest_usage.h" + +/** + * print attest usage info + */ +void usage(void) +{ + printf("\ +Usage:\n\ + ipsec attest --components|--devices|--sessions|--files|--hashes|--keys [options]\n\ + \n\ + ipsec attest --measurements|--packages|--products|--add|--del [options]\n\ + \n\ + ipsec attest --components [--key <digest>|--kid <id>]\n\ + Show a list of components with an AIK digest or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --devices [--utc]\n\ + Show a list of registered devices and associated collected information\n\ + \n\ + ipsec attest --sessions [--utc]\n\ + Show a chronologically sorted list of all TNC sessions\n\ + \n\ + ipsec attest --files [--product <name>|--pid <id>]\n\ + Show a list of files with a software product name or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --hashes [--sha1|--sha256|--sha384] [--product <name>|--pid <id>]\n\ + Show a list of measurement hashes for a given software product or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --hashes [--sha1|--sha1-ima|--sha256|--sha384] [--file <path>|--fid <id>]\n\ + Show a list of measurement hashes for a given file or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --keys [--components <cfn>|--cid <id>]\n\ + Show a list of AIK key digests with a component or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --measurements --sha1|--sha256|--sha384 [--component <cfn>|--cid <id>]\n\ + Show a list of component measurements for a given component or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --measurements --sha1|--sha256|--sha384 [--key <digest>|--kid <id>|--aik <path>]\n\ + Show a list of component measurements for a given AIK or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --packages [--product <name>|--pid <id>] [--utc]\n\ + Show a list of software packages for a given product or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --products [--file <path>|--fid <id>]\n\ + Show a list of supported software products with a file path or\n\ + its primary key as an optional selector.\n\ + \n\ + ipsec attest --add --file <path>|--dir <path>|--product <name>|--component <cfn>\n\ + Add a file, directory, product or component entry\n\ + Component <cfn> entries must be of the form <vendor_id>/<name>-<qualifier>\n\ + \n\ + ipsec attest --add [--owner <name>] --key <digest>|--aik <path>\n\ + Add an AIK public key digest entry preceded by an optional owner name\n\ + \n\ + ipsec attest --add --product <name>|--pid <id> --sha1|--sha1-ima|--sha256|--sha384\n\ + [--relative|--rel] --dir <path>|--file <path>\n\ + Add hashes of a single file or all files in a directory under absolute or relative filenames\n\ + \n\ + ipsec attest --add --key <digest|--kid <id> --component <cfn>|--cid <id> --sequence <no>|--seq <no>\n\ + Add an ordered key/component entry\n\ + \n\ + ipsec attest --add --package <name> --version <string> [--security|--blacklist]\n\ + [--product <name>|--pid <id>]\n\ + Add a package version for a given product optionally with security or blacklist flag\n\ + \n\ + ipsec attest --del --file <path>|--fid <id>|--dir <path>|--did <id>\n\ + Delete a file or directory entry referenced either by value or primary key\n\ + \n\ + ipsec attest --del --product <name>|--pid <id>|--component <cfn>|--cid <id>\n\ + Delete a product or component entry referenced either by value or primary key\n\ + \n\ + ipsec attest --del --product <name>|--pid <id> --file <path>|--fid <id>|--dir <path>|--did <id>\n\ + Delete a product/file entry referenced either by value or primary key\n\ + \n\ + ipsec attest --del --key <digest>|--kid <id>|--aik <path>\n\ + Delete an AIK entry referenced either by value or primary key\n\ + \n\ + ipsec attest --del --key <digest|--kid <id> --component <cfn>|--cid <id>\n\ + Delete a key/component entry\n\ + \n\ + ipsec attest --del --product <name>|--pid <id> --sha1|--sha1-ima|--sha256|--sha384\n\ + [--dir <path>|--did <id>] --file <path>|--fid <id>\n\ + Delete a file hash given an absolute or relative filename\n\ + \n"); +} + diff --git a/src/libimcv/plugins/imv_attestation/attest_usage.h b/src/libimcv/plugins/imv_attestation/attest_usage.h new file mode 100644 index 000000000..bce801e9d --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/attest_usage.h @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef ATTEST_USAGE_H_ +#define ATTEST_USAGE_H_ + +/** + * print attest usage info + */ +void usage(void); + + +#endif /* ATTEST_USAGE_H_ */ diff --git a/src/libimcv/plugins/imv_attestation/build-database.sh b/src/libimcv/plugins/imv_attestation/build-database.sh new file mode 100755 index 000000000..ca2939b49 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/build-database.sh @@ -0,0 +1,84 @@ +#!/bin/sh + +p="Ubuntu 14.04 x86_64" +a="x86_64-linux-gnu" +k="3.13.0-37-generic" + +for hash in sha1 sha256 +do + ipsec attest --add --product "$p" --$hash --dir /sbin + ipsec attest --add --product "$p" --$hash --dir /usr/sbin + ipsec attest --add --product "$p" --$hash --dir /bin + ipsec attest --add --product "$p" --$hash --dir /usr/bin + + ipsec attest --add --product "$p" --$hash --file /etc/init.d/rc + ipsec attest --add --product "$p" --$hash --file /etc/init.d/rcS + ipsec attest --add --product "$p" --$hash --dir /etc/network/if-pre-up.d + ipsec attest --add --product "$p" --$hash --dir /etc/network/if-up.d + ipsec attest --add --product "$p" --$hash --dir /etc/ppp/ip-down.d + ipsec attest --add --product "$p" --$hash --dir /etc/rcS.d + ipsec attest --add --product "$p" --$hash --dir /etc/rc2.d + ipsec attest --add --product "$p" --$hash --file /etc/rc.local + ipsec attest --add --product "$p" --$hash --dir /etc/resolvconf/update.d + ipsec attest --add --product "$p" --$hash --file /etc/resolvconf/update-libc.d/avahi-daemon + ipsec attest --add --product "$p" --$hash --dir /etc/update-motd.d + + ipsec attest --add --product "$p" --$hash --dir /lib + ipsec attest --add --product "$p" --$hash --file /lib/crda/setregdomain + ipsec attest --add --product "$p" --$hash --dir /lib/ebtables + ipsec attest --add --product "$p" --$hash --file /lib/init/apparmor-profile-load + ipsec attest --add --product "$p" --$hash --file /lib/resolvconf/list-records + ipsec attest --add --product "$p" --$hash --dir /lib/ufw + ipsec attest --add --product "$p" --$hash --dir /lib/udev + ipsec attest --add --product "$p" --$hash --dir /lib/systemd + ipsec attest --add --product "$p" --$hash --dir /lib/xtables + ipsec attest --add --product "$p" --$hash --dir /lib/$a + ipsec attest --add --product "$p" --$hash --dir /lib/$a/plymouth + ipsec attest --add --product "$p" --$hash --dir /lib/$a/plymouth/renderers + ipsec attest --add --product "$p" --$hash --dir /lib/$a/security + + ipsec attest --add --product "$p" --$hash --file /lib64/ld-linux-x86-64.so.2 + + for file in `find /usr/lib -name *.so` + do + ipsec attest --add --product "$p" --$hash --file $file + done + + for file in `find /usr/lib -name *service` + do + ipsec attest --add --product "$p" --$hash --file $file + done + + ipsec attest --add --product "$p" --$hash --dir /usr/lib + ipsec attest --add --product "$p" --$hash --dir /usr/lib/accountsservice + ipsec attest --add --product "$p" --$hash --dir /usr/lib/at-spi2-core + ipsec attest --add --product "$p" --$hash --file /usr/lib/avahi/avahi-daemon-check-dns.sh + ipsec attest --add --product "$p" --$hash --file /usr/lib/dbus-1.0/dbus-daemon-launch-helper + ipsec attest --add --product "$p" --$hash --dir /usr/lib/gvfs + ipsec attest --add --product "$p" --$hash --file /usr/lib/firefox/firefox + ipsec attest --add --product "$p" --$hash --dir /usr/lib/NetworkManager + ipsec attest --add --product "$p" --$hash --dir /usr/lib/pm-utils/power.d + ipsec attest --add --product "$p" --$hash --file /usr/lib/policykit-1/polkitd + ipsec attest --add --product "$p" --$hash --file /usr/lib/thunderbird/thunderbird + ipsec attest --add --product "$p" --$hash --dir /usr/lib/ubuntu-release-upgrader + ipsec attest --add --product "$p" --$hash --dir /usr/lib/update-notifier + + ipsec attest --add --product "$p" --$hash --dir /usr/lib/$a + ipsec attest --add --product "$p" --$hash --file /usr/lib/$a/mesa/libGL.so.1.2.0 + ipsec attest --add --product "$p" --$hash --dir /usr/lib/$a/samba + ipsec attest --add --product "$p" --$hash --dir /usr/lib/$a/sasl2 + + ipsec attest --add --product "$p" --$hash --dir /usr/share/language-tools + + ipsec attest --add --product "$p" --$hash --file /init \ + --measdir /usr/share/initramfs-tools + + ipsec attest --add --product "$p" --$hash --file /scripts/functions \ + --measdir /usr/share/initramfs-tools/scripts + + for file in `find /lib/modules/$k -name *.ko` + do + ipsec attest --add --product "$p" --$hash --file $file + done +done + diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation.c b/src/libimcv/plugins/imv_attestation/imv_attestation.c new file mode 100644 index 000000000..542a561aa --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation.c @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2013 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imv_attestation_agent.h" + +static const char imv_name[] = "Attestation"; +static const imv_agent_create_t imv_agent_create = imv_attestation_agent_create; + +/* include generic TGC TNC IF-IMV API code below */ + +#include <imv/imv_if.h> + diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_agent.c b/src/libimcv/plugins/imv_attestation/imv_attestation_agent.c new file mode 100644 index 000000000..8e3736857 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_agent.c @@ -0,0 +1,931 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE /* for stdndup() */ +#include <string.h> + +#include "imv_attestation_agent.h" +#include "imv_attestation_state.h" +#include "imv_attestation_process.h" +#include "imv_attestation_build.h" + +#include <imcv.h> +#include <imv/imv_agent.h> +#include <imv/imv_msg.h> +#include <imv/imv_session.h> +#include <imv/imv_os_info.h> +#include <ietf/ietf_attr.h> +#include <ietf/ietf_attr_attr_request.h> +#include <ietf/ietf_attr_pa_tnc_error.h> +#include <ietf/ietf_attr_product_info.h> +#include <ietf/ietf_attr_string_version.h> +#include <ita/ita_attr.h> +#include <ita/ita_attr_device_id.h> +#include <tcg/tcg_attr.h> +#include <tcg/pts/tcg_pts_attr_meas_algo.h> +#include <tcg/pts/tcg_pts_attr_proto_caps.h> +#include <tcg/pts/tcg_pts_attr_req_file_meas.h> +#include <tcg/pts/tcg_pts_attr_req_file_meta.h> +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" +#include <pts/pts.h> +#include <pts/pts_database.h> +#include <pts/pts_creds.h> +#include <pts/components/ita/ita_comp_func_name.h> + +#include <tncif_pa_subtypes.h> + +#include <pen/pen.h> +#include <utils/debug.h> +#include <credentials/credential_manager.h> +#include <collections/linked_list.h> + +#define FILE_MEAS_MAX_ATTR_SIZE 100000000 + +typedef struct private_imv_attestation_agent_t private_imv_attestation_agent_t; + +/* Subscribed PA-TNC message subtypes */ +static pen_type_t msg_types[] = { + { PEN_TCG, PA_SUBTYPE_TCG_PTS }, + { PEN_IETF, PA_SUBTYPE_IETF_OPERATING_SYSTEM } +}; + +/** + * Private data of an imv_attestation_agent_t object. + */ +struct private_imv_attestation_agent_t { + + /** + * Public members of imv_attestation_agent_t + */ + imv_agent_if_t public; + + /** + * IMV agent responsible for generic functions + */ + imv_agent_t *agent; + + /** + * Supported PTS measurement algorithms + */ + pts_meas_algorithms_t supported_algorithms; + + /** + * Supported PTS Diffie Hellman Groups + */ + pts_dh_group_t supported_dh_groups; + + /** + * PTS file measurement database + */ + pts_database_t *pts_db; + + /** + * PTS credentials + */ + pts_creds_t *pts_creds; + + /** + * PTS credential manager + */ + credential_manager_t *pts_credmgr; + +}; + +METHOD(imv_agent_if_t, bind_functions, TNC_Result, + private_imv_attestation_agent_t *this, TNC_TNCS_BindFunctionPointer bind_function) +{ + return this->agent->bind_functions(this->agent, bind_function); +} + +METHOD(imv_agent_if_t, notify_connection_change, TNC_Result, + private_imv_attestation_agent_t *this, TNC_ConnectionID id, + TNC_ConnectionState new_state) +{ + TNC_IMV_Action_Recommendation rec; + imv_state_t *state; + imv_session_t *session; + + switch (new_state) + { + case TNC_CONNECTION_STATE_CREATE: + state = imv_attestation_state_create(id); + return this->agent->create_state(this->agent, state); + case TNC_CONNECTION_STATE_DELETE: + return this->agent->delete_state(this->agent, id); + case TNC_CONNECTION_STATE_ACCESS_ALLOWED: + case TNC_CONNECTION_STATE_ACCESS_ISOLATED: + case TNC_CONNECTION_STATE_ACCESS_NONE: + if (this->agent->get_state(this->agent, id, &state) && imcv_db) + { + session = state->get_session(state); + + if (session->get_policy_started(session)) + { + switch (new_state) + { + case TNC_CONNECTION_STATE_ACCESS_ALLOWED: + rec = TNC_IMV_ACTION_RECOMMENDATION_ALLOW; + break; + case TNC_CONNECTION_STATE_ACCESS_ISOLATED: + rec = TNC_IMV_ACTION_RECOMMENDATION_ISOLATE; + break; + case TNC_CONNECTION_STATE_ACCESS_NONE: + default: + rec = TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS; + } + imcv_db->add_recommendation(imcv_db, session, rec); + if (!imcv_db->policy_script(imcv_db, session, FALSE)) + { + DBG1(DBG_IMV, "error in policy script stop"); + } + } + } + /* fall through to default state */ + default: + return this->agent->change_state(this->agent, id, new_state, NULL); + } +} + +/** + * Process a received message + */ +static TNC_Result receive_msg(private_imv_attestation_agent_t *this, + imv_state_t *state, imv_msg_t *in_msg) +{ + imv_msg_t *out_msg; + imv_session_t *session; + imv_os_info_t *os_info; + enumerator_t *enumerator; + pa_tnc_attr_t *attr; + pen_type_t type; + TNC_Result result; + chunk_t os_name, os_version; + bool fatal_error = FALSE; + + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imv_msg_create_as_reply(in_msg); + out_msg->set_msg_type(out_msg, msg_types[0]); + + /* parse received PA-TNC message and handle local and remote errors */ + result = in_msg->receive(in_msg, out_msg, &fatal_error); + if (result != TNC_RESULT_SUCCESS) + { + out_msg->destroy(out_msg); + return result; + } + + session = state->get_session(state); + os_info = session->get_os_info(session); + + /* analyze PA-TNC attributes */ + enumerator = in_msg->create_attribute_enumerator(in_msg); + while (enumerator->enumerate(enumerator, &attr)) + { + type = attr->get_type(attr); + + if (type.vendor_id == PEN_IETF) + { + switch (type.type) + { + case IETF_ATTR_PA_TNC_ERROR: + { + ietf_attr_pa_tnc_error_t *error_attr; + pen_type_t error_code; + chunk_t msg_info; + + error_attr = (ietf_attr_pa_tnc_error_t*)attr; + error_code = error_attr->get_error_code(error_attr); + + if (error_code.vendor_id == PEN_TCG) + { + msg_info = error_attr->get_msg_info(error_attr); + + DBG1(DBG_IMV, "received TCG-PTS error '%N'", + pts_error_code_names, error_code.type); + DBG1(DBG_IMV, "error information: %B", &msg_info); + fatal_error = TRUE; + } + break; + } + case IETF_ATTR_PRODUCT_INFORMATION: + { + ietf_attr_product_info_t *attr_cast; + pen_t vendor_id; + + state->set_action_flags(state, + IMV_ATTESTATION_ATTR_PRODUCT_INFO); + attr_cast = (ietf_attr_product_info_t*)attr; + os_name = attr_cast->get_info(attr_cast, &vendor_id, NULL); + os_info->set_name(os_info, os_name); + + if (vendor_id != PEN_IETF) + { + DBG1(DBG_IMV, "operating system name is '%.*s' " + "from vendor %N", os_name.len, os_name.ptr, + pen_names, vendor_id); + } + else + { + DBG1(DBG_IMV, "operating system name is '%.*s'", + os_name.len, os_name.ptr); + } + break; + + break; + } + case IETF_ATTR_STRING_VERSION: + { + ietf_attr_string_version_t *attr_cast; + + state->set_action_flags(state, + IMV_ATTESTATION_ATTR_STRING_VERSION); + attr_cast = (ietf_attr_string_version_t*)attr; + os_version = attr_cast->get_version(attr_cast, NULL, NULL); + os_info->set_version(os_info, os_version); + + if (os_version.len) + { + DBG1(DBG_IMV, "operating system version is '%.*s'", + os_version.len, os_version.ptr); + } + break; + } + default: + break; + } + } + else if (type.vendor_id == PEN_ITA) + { + switch (type.type) + { + case ITA_ATTR_DEVICE_ID: + { + chunk_t value; + + state->set_action_flags(state, + IMV_ATTESTATION_ATTR_DEVICE_ID); + + value = attr->get_value(attr); + DBG1(DBG_IMV, "device ID is %.*s", value.len, value.ptr); + session->set_device_id(session, value); + break; + } + default: + break; + } + } + else if (type.vendor_id == PEN_TCG) + { + if (!imv_attestation_process(attr, out_msg, state, + this->supported_algorithms, this->supported_dh_groups, + this->pts_db, this->pts_credmgr)) + { + result = TNC_RESULT_FATAL; + break; + } + } + } + enumerator->destroy(enumerator); + + if (fatal_error || result != TNC_RESULT_SUCCESS) + { + state->set_recommendation(state, + TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, + TNC_IMV_EVALUATION_RESULT_ERROR); + result = out_msg->send_assessment(out_msg); + if (result == TNC_RESULT_SUCCESS) + { + result = this->agent->provide_recommendation(this->agent, state); + } + } + else + { + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); + } + out_msg->destroy(out_msg); + + return result; +} + +METHOD(imv_agent_if_t, receive_message, TNC_Result, + private_imv_attestation_agent_t *this, TNC_ConnectionID id, + TNC_MessageType msg_type, chunk_t msg) +{ + imv_state_t *state; + imv_msg_t *in_msg; + TNC_Result result; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imv_msg_create_from_data(this->agent, state, id, msg_type, msg); + result = receive_msg(this, state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +METHOD(imv_agent_if_t, receive_message_long, TNC_Result, + private_imv_attestation_agent_t *this, TNC_ConnectionID id, + TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id, + TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype, chunk_t msg) +{ + imv_state_t *state; + imv_msg_t *in_msg; + TNC_Result result; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imv_msg_create_from_long_data(this->agent, state, id, + src_imc_id, dst_imv_id, msg_vid, msg_subtype, msg); + result = receive_msg(this, state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +/** + * Build an IETF Attribute Request attribute for missing attributes + */ +static pa_tnc_attr_t* build_attr_request(uint32_t received) +{ + pa_tnc_attr_t *attr; + ietf_attr_attr_request_t *attr_cast; + + attr = ietf_attr_attr_request_create(PEN_RESERVED, 0); + attr_cast = (ietf_attr_attr_request_t*)attr; + + if (!(received & IMV_ATTESTATION_ATTR_PRODUCT_INFO) || + !(received & IMV_ATTESTATION_ATTR_STRING_VERSION)) + { + attr_cast->add(attr_cast, PEN_IETF, IETF_ATTR_PRODUCT_INFORMATION); + attr_cast->add(attr_cast, PEN_IETF, IETF_ATTR_STRING_VERSION); + } + if (!(received & IMV_ATTESTATION_ATTR_DEVICE_ID)) + { + attr_cast->add(attr_cast, PEN_ITA, ITA_ATTR_DEVICE_ID); + } + + return attr; +} + +METHOD(imv_agent_if_t, batch_ending, TNC_Result, + private_imv_attestation_agent_t *this, TNC_ConnectionID id) +{ + imv_msg_t *out_msg; + imv_state_t *state; + imv_session_t *session; + imv_attestation_state_t *attestation_state; + imv_attestation_handshake_state_t handshake_state; + imv_workitem_t *workitem; + TNC_IMV_Action_Recommendation rec; + TNC_IMV_Evaluation_Result eval; + TNC_IMVID imv_id; + TNC_Result result = TNC_RESULT_SUCCESS; + pts_t *pts; + int pid; + uint32_t actions; + enumerator_t *enumerator; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + attestation_state = (imv_attestation_state_t*)state; + pts = attestation_state->get_pts(attestation_state); + handshake_state = attestation_state->get_handshake_state(attestation_state); + actions = state->get_action_flags(state); + session = state->get_session(state); + imv_id = this->agent->get_id(this->agent); + + /* exit if a recommendation has already been provided */ + if (actions & IMV_ATTESTATION_REC) + { + return TNC_RESULT_SUCCESS; + } + + /* send an IETF attribute request if no platform info was received */ + if (!(actions & IMV_ATTESTATION_ATTR_REQ)) + { + if ((actions & IMV_ATTESTATION_ATTR_MUST) != IMV_ATTESTATION_ATTR_MUST) + { + imv_msg_t *os_msg; + + /* create attribute request for missing mandatory attributes */ + os_msg = imv_msg_create(this->agent, state, id, imv_id, + TNC_IMCID_ANY, msg_types[1]); + os_msg->add_attribute(os_msg, build_attr_request(actions)); + result = os_msg->send(os_msg, FALSE); + os_msg->destroy(os_msg); + + if (result != TNC_RESULT_SUCCESS) + { + return result; + } + } + state->set_action_flags(state, IMV_ATTESTATION_ATTR_REQ); + } + + if (!session->get_policy_started(session) && + (actions & IMV_ATTESTATION_ATTR_PRODUCT_INFO) && + (actions & IMV_ATTESTATION_ATTR_STRING_VERSION) && + (actions & IMV_ATTESTATION_ATTR_DEVICE_ID)) + { + if (imcv_db) + { + /* start the policy script */ + if (!imcv_db->policy_script(imcv_db, session, TRUE)) + { + DBG1(DBG_IMV, "error in policy script start"); + } + } + else + { + DBG2(DBG_IMV, "no workitems available - no evaluation possible"); + state->set_recommendation(state, + TNC_IMV_ACTION_RECOMMENDATION_ALLOW, + TNC_IMV_EVALUATION_RESULT_DONT_KNOW); + session->set_policy_started(session, TRUE); + } + } + + if (handshake_state == IMV_ATTESTATION_STATE_INIT) + { + size_t max_attr_size = FILE_MEAS_MAX_ATTR_SIZE; + size_t max_seg_size; + seg_contract_t *contract; + seg_contract_manager_t *contracts; + pa_tnc_attr_t *attr; + pts_proto_caps_flag_t flags; + char buf[BUF_LEN]; + + out_msg = imv_msg_create(this->agent, state, id, imv_id, TNC_IMCID_ANY, + msg_types[0]); + + /* Determine maximum PA-TNC attribute segment size */ + max_seg_size = state->get_max_msg_len(state) + - PA_TNC_HEADER_SIZE + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_SEG_ENV_HEADER + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_MAX_SIZE_SIZE; + + /* Announce support of PA-TNC segmentation to IMC */ + contract = seg_contract_create(msg_types[0], max_attr_size, + max_seg_size, TRUE, imv_id, FALSE); + contract->get_info_string(contract, buf, BUF_LEN, TRUE); + DBG2(DBG_IMV, "%s", buf); + contracts = state->get_contracts(state); + contracts->add_contract(contracts, contract); + attr = tcg_seg_attr_max_size_create(max_attr_size, max_seg_size, TRUE); + out_msg->add_attribute(out_msg, attr); + + /* Send Request Protocol Capabilities attribute */ + flags = pts->get_proto_caps(pts); + attr = tcg_pts_attr_proto_caps_create(flags, TRUE); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + /* Send Measurement Algorithms attribute */ + attr = tcg_pts_attr_meas_algo_create(this->supported_algorithms, FALSE); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_DISCOVERY); + + /* send these initial PTS attributes and exit */ + result = out_msg->send(out_msg, FALSE); + out_msg->destroy(out_msg); + + return result; + } + + /* exit if we are not ready yet for PTS measurements */ + if (!(actions & IMV_ATTESTATION_ALGO)) + { + return TNC_RESULT_SUCCESS; + } + + session->get_session_id(session, &pid, NULL); + pts->set_platform_id(pts, pid); + + /* create an empty out message - we might need it */ + out_msg = imv_msg_create(this->agent, state, id, imv_id, TNC_IMCID_ANY, + msg_types[0]); + + /* establish the PTS measurements to be taken */ + if (!(actions & IMV_ATTESTATION_FILE_MEAS)) + { + bool is_dir, no_workitems = TRUE; + uint32_t delimiter = SOLIDUS_UTF; + uint16_t request_id; + pa_tnc_attr_t *attr; + char *pathname; + + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_END); + + enumerator = session->create_workitem_enumerator(session); + if (enumerator) + { + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_imv_id(workitem) != TNC_IMVID_ANY) + { + continue; + } + + switch (workitem->get_type(workitem)) + { + case IMV_WORKITEM_FILE_REF_MEAS: + case IMV_WORKITEM_FILE_MEAS: + case IMV_WORKITEM_FILE_META: + is_dir = FALSE; + break; + case IMV_WORKITEM_DIR_REF_MEAS: + case IMV_WORKITEM_DIR_MEAS: + case IMV_WORKITEM_DIR_META: + is_dir = TRUE; + break; + case IMV_WORKITEM_TPM_ATTEST: + { + pts_component_t *comp; + pts_comp_func_name_t *comp_name; + bool no_d_flag, no_t_flag; + char result_str[BUF_LEN]; + + workitem->set_imv_id(workitem, imv_id); + no_workitems = FALSE; + no_d_flag = !(pts->get_proto_caps(pts) & PTS_PROTO_CAPS_D); + no_t_flag = !(pts->get_proto_caps(pts) & PTS_PROTO_CAPS_T); + if (no_d_flag || no_t_flag) + { + snprintf(result_str, BUF_LEN, "%s%s%s", + (no_t_flag) ? "no TPM available" : "", + (no_t_flag && no_d_flag) ? ", " : "", + (no_d_flag) ? "no DH nonce negotiation" : ""); + eval = TNC_IMV_EVALUATION_RESULT_ERROR; + session->remove_workitem(session, enumerator); + rec = workitem->set_result(workitem, result_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + workitem->destroy(workitem); + continue; + } + + /* do TPM BIOS measurements */ + if (strchr(workitem->get_arg_str(workitem), 'B')) + { + comp_name = pts_comp_func_name_create(PEN_ITA, + PTS_ITA_COMP_FUNC_NAME_IMA, + PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED); + comp = attestation_state->create_component( + attestation_state, comp_name, + 0, this->pts_db); + if (!comp) + { + comp_name->log(comp_name, "unregistered "); + comp_name->destroy(comp_name); + } + } + + /* do TPM IMA measurements */ + if (strchr(workitem->get_arg_str(workitem), 'I')) + { + comp_name = pts_comp_func_name_create(PEN_ITA, + PTS_ITA_COMP_FUNC_NAME_IMA, + PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_OS); + comp = attestation_state->create_component( + attestation_state, comp_name, + 0, this->pts_db); + if (!comp) + { + comp_name->log(comp_name, "unregistered "); + comp_name->destroy(comp_name); + } + } + + /* do TPM TRUSTED BOOT measurements */ + if (strchr(workitem->get_arg_str(workitem), 'T')) + { + comp_name = pts_comp_func_name_create(PEN_ITA, + PTS_ITA_COMP_FUNC_NAME_TBOOT, + PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED); + comp = attestation_state->create_component( + attestation_state, comp_name, + 0, this->pts_db); + if (!comp) + { + comp_name->log(comp_name, "unregistered "); + comp_name->destroy(comp_name); + } + } + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_NONCE_REQ); + continue; + } + default: + continue; + } + + /* initiate file and directory measurements */ + pathname = this->pts_db->get_pathname(this->pts_db, is_dir, + workitem->get_arg_int(workitem)); + if (!pathname) + { + continue; + } + workitem->set_imv_id(workitem, imv_id); + no_workitems = FALSE; + + if (workitem->get_type(workitem) == IMV_WORKITEM_FILE_META) + { + TNC_IMV_Action_Recommendation rec; + TNC_IMV_Evaluation_Result eval; + char result_str[BUF_LEN]; + + DBG2(DBG_IMV, "IMV %d requests metadata for %s '%s'", + imv_id, is_dir ? "directory" : "file", pathname); + + /* currently just fire and forget metadata requests */ + attr = tcg_pts_attr_req_file_meta_create(is_dir, + delimiter, pathname); + snprintf(result_str, BUF_LEN, "%s metadata requested", + is_dir ? "directory" : "file"); + eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT; + session->remove_workitem(session, enumerator); + rec = workitem->set_result(workitem, result_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + workitem->destroy(workitem); + } + else + { + /* use lower 16 bits of the workitem ID as request ID */ + request_id = workitem->get_id(workitem) & 0xffff; + + DBG2(DBG_IMV, "IMV %d requests measurement %d for %s '%s'", + imv_id, request_id, is_dir ? "directory" : "file", + pathname); + attr = tcg_pts_attr_req_file_meas_create(is_dir, request_id, + delimiter, pathname); + } + free(pathname); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + } + enumerator->destroy(enumerator); + + /* sent all file and directory measurement and metadata requests */ + state->set_action_flags(state, IMV_ATTESTATION_FILE_MEAS); + + if (no_workitems) + { + DBG2(DBG_IMV, "IMV %d has no workitems - " + "no evaluation requested", imv_id); + state->set_recommendation(state, + TNC_IMV_ACTION_RECOMMENDATION_ALLOW, + TNC_IMV_EVALUATION_RESULT_DONT_KNOW); + } + } + } + + /* check the IMV state for the next PA-TNC attributes to send */ + enumerator = session->create_workitem_enumerator(session); + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_type(workitem) == IMV_WORKITEM_TPM_ATTEST) + { + if (!imv_attestation_build(out_msg, state, + this->supported_dh_groups, this->pts_db)) + { + imv_reason_string_t *reason_string; + chunk_t result; + char *result_str; + + reason_string = imv_reason_string_create("en", ", "); + attestation_state->add_comp_evid_reasons(attestation_state, + reason_string); + result = reason_string->get_encoding(reason_string); + result_str = strndup(result.ptr, result.len); + reason_string->destroy(reason_string); + + eval = TNC_IMV_EVALUATION_RESULT_ERROR; + session->remove_workitem(session, enumerator); + rec = workitem->set_result(workitem, result_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + } + break; + } + } + enumerator->destroy(enumerator); + + /* finalized all workitems? */ + if (session->get_policy_started(session) && + session->get_workitem_count(session, imv_id) == 0 && + attestation_state->get_handshake_state(attestation_state) == + IMV_ATTESTATION_STATE_END) + { + result = out_msg->send_assessment(out_msg); + out_msg->destroy(out_msg); + state->set_action_flags(state, IMV_ATTESTATION_REC); + + if (result != TNC_RESULT_SUCCESS) + { + return result; + } + return this->agent->provide_recommendation(this->agent, state); + } + + /* send non-empty PA-TNC message with excl flag not set */ + if (out_msg->get_attribute_count(out_msg)) + { + result = out_msg->send(out_msg, FALSE); + } + out_msg->destroy(out_msg); + + return result; +} + +METHOD(imv_agent_if_t, solicit_recommendation, TNC_Result, + private_imv_attestation_agent_t *this, TNC_ConnectionID id) +{ + TNC_IMVID imv_id; + imv_state_t *state; + imv_attestation_state_t *attestation_state; + imv_session_t *session; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + attestation_state = (imv_attestation_state_t*)state; + session = state->get_session(state); + imv_id = this->agent->get_id(this->agent); + + if (imcv_db) + { + TNC_IMV_Evaluation_Result eval; + TNC_IMV_Action_Recommendation rec; + imv_workitem_t *workitem; + enumerator_t *enumerator; + int pending_file_meas = 0; + char *result_str; + chunk_t result_buf; + bio_writer_t *result; + + enumerator = session->create_workitem_enumerator(session); + if (enumerator) + { + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_imv_id(workitem) != imv_id) + { + continue; + } + result = bio_writer_create(128); + + switch (workitem->get_type(workitem)) + { + case IMV_WORKITEM_FILE_REF_MEAS: + case IMV_WORKITEM_FILE_MEAS: + case IMV_WORKITEM_DIR_REF_MEAS: + case IMV_WORKITEM_DIR_MEAS: + result_str = "pending file measurements"; + pending_file_meas++; + break; + case IMV_WORKITEM_TPM_ATTEST: + attestation_state->finalize_components(attestation_state, + result); + result->write_data(result, + chunk_from_str("; pending component evidence")); + result->write_uint8(result, '\0'); + result_buf = result->get_buf(result); + result_str = result_buf.ptr; + break; + default: + result->destroy(result); + continue; + } + session->remove_workitem(session, enumerator); + eval = TNC_IMV_EVALUATION_RESULT_ERROR; + rec = workitem->set_result(workitem, result_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + workitem->destroy(workitem); + result->destroy(result); + } + enumerator->destroy(enumerator); + + if (pending_file_meas) + { + DBG1(DBG_IMV, "failure due to %d pending file measurements", + pending_file_meas); + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_FILE_MEAS_PEND); + } + } + } + return this->agent->provide_recommendation(this->agent, state); +} + +METHOD(imv_agent_if_t, destroy, void, + private_imv_attestation_agent_t *this) +{ + if (this->pts_creds) + { + this->pts_credmgr->remove_set(this->pts_credmgr, + this->pts_creds->get_set(this->pts_creds)); + this->pts_creds->destroy(this->pts_creds); + } + DESTROY_IF(this->pts_db); + DESTROY_IF(this->pts_credmgr); + DESTROY_IF(this->agent); + free(this); +} + +/** + * Described in header. + */ +imv_agent_if_t *imv_attestation_agent_create(const char *name, TNC_IMVID id, + TNC_Version *actual_version) +{ + private_imv_attestation_agent_t *this; + imv_agent_t *agent; + char *hash_alg, *dh_group, *cadir; + bool mandatory_dh_groups; + + agent = imv_agent_create(name, msg_types, countof(msg_types), id, + actual_version); + if (!agent) + { + return NULL; + } + + hash_alg = lib->settings->get_str(lib->settings, + "%s.plugins.imv-attestation.hash_algorithm", "sha256", lib->ns); + dh_group = lib->settings->get_str(lib->settings, + "%s.plugins.imv-attestation.dh_group", "ecp256", lib->ns); + mandatory_dh_groups = lib->settings->get_bool(lib->settings, + "%s.plugins.imv-attestation.mandatory_dh_groups", TRUE, lib->ns); + cadir = lib->settings->get_str(lib->settings, + "%s.plugins.imv-attestation.cadir", NULL, lib->ns); + + INIT(this, + .public = { + .bind_functions = _bind_functions, + .notify_connection_change = _notify_connection_change, + .receive_message = _receive_message, + .receive_message_long = _receive_message_long, + .batch_ending = _batch_ending, + .solicit_recommendation = _solicit_recommendation, + .destroy = _destroy, + }, + .agent = agent, + .supported_algorithms = PTS_MEAS_ALGO_NONE, + .supported_dh_groups = PTS_DH_GROUP_NONE, + .pts_credmgr = credential_manager_create(), + .pts_creds = pts_creds_create(cadir), + .pts_db = pts_database_create(imcv_db), + ); + + if (!pts_meas_algo_probe(&this->supported_algorithms) || + !pts_dh_group_probe(&this->supported_dh_groups, mandatory_dh_groups) || + !pts_meas_algo_update(hash_alg, &this->supported_algorithms) || + !pts_dh_group_update(dh_group, &this->supported_dh_groups)) + { + destroy(this); + return NULL; + } + + if (this->pts_creds) + { + this->pts_credmgr->add_set(this->pts_credmgr, + this->pts_creds->get_set(this->pts_creds)); + } + + return &this->public; +} diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_agent.h b/src/libimcv/plugins/imv_attestation/imv_attestation_agent.h new file mode 100644 index 000000000..cc421a29a --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_agent.h @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2013 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_attestation_agent_t imv_attestation_agent + * @{ @ingroup imv_attestation + */ + +#ifndef IMV_ATTESTATION_AGENT_H_ +#define IMV_ATTESTATION_AGENT_H_ + +#include <imv/imv_agent_if.h> + +/** + * Creates a Attestation IMV agent + * + * @param name Name of the IMV + * @param id ID of the IMV + * @param actual_version TNC IF-IMV version + */ +imv_agent_if_t* imv_attestation_agent_create(const char* name, TNC_IMVID id, + TNC_Version *actual_version); + +#endif /** IMV_ATTESTATION_AGENT_H_ @}*/ diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_build.c b/src/libimcv/plugins/imv_attestation/imv_attestation_build.c new file mode 100644 index 000000000..c39fe8d47 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_build.c @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imv_attestation_build.h" +#include "imv_attestation_state.h" + +#include <tcg/pts/tcg_pts_attr_dh_nonce_params_req.h> +#include <tcg/pts/tcg_pts_attr_dh_nonce_finish.h> +#include <tcg/pts/tcg_pts_attr_get_tpm_version_info.h> +#include <tcg/pts/tcg_pts_attr_get_aik.h> +#include <tcg/pts/tcg_pts_attr_req_func_comp_evid.h> +#include <tcg/pts/tcg_pts_attr_gen_attest_evid.h> + +#include <utils/debug.h> + +bool imv_attestation_build(imv_msg_t *out_msg, imv_state_t *state, + pts_dh_group_t supported_dh_groups, + pts_database_t *pts_db) +{ + imv_attestation_state_t *attestation_state; + imv_attestation_handshake_state_t handshake_state; + pts_t *pts; + pa_tnc_attr_t *attr = NULL; + + attestation_state = (imv_attestation_state_t*)state; + handshake_state = attestation_state->get_handshake_state(attestation_state); + pts = attestation_state->get_pts(attestation_state); + + switch (handshake_state) + { + case IMV_ATTESTATION_STATE_NONCE_REQ: + { + int min_nonce_len; + + /* Send DH nonce parameters request attribute */ + min_nonce_len = lib->settings->get_int(lib->settings, + "%s.plugins.imv-attestation.min_nonce_len", 0, lib->ns); + attr = tcg_pts_attr_dh_nonce_params_req_create(min_nonce_len, + supported_dh_groups); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_TPM_INIT); + break; + } + case IMV_ATTESTATION_STATE_TPM_INIT: + { + pts_meas_algorithms_t selected_algorithm; + chunk_t initiator_value, initiator_nonce; + + if (!(state->get_action_flags(state) & IMV_ATTESTATION_DH_NONCE)) + { + break; + } + + /* Send DH nonce finish attribute */ + selected_algorithm = pts->get_meas_algorithm(pts); + pts->get_my_public_value(pts, &initiator_value, &initiator_nonce); + attr = tcg_pts_attr_dh_nonce_finish_create(selected_algorithm, + initiator_value, initiator_nonce); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + /* Send Get TPM Version attribute */ + attr = tcg_pts_attr_get_tpm_version_info_create(); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + /* Send Get AIK attribute */ + attr = tcg_pts_attr_get_aik_create(); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_COMP_EVID); + break; + } + case IMV_ATTESTATION_STATE_COMP_EVID: + { + tcg_pts_attr_req_func_comp_evid_t *attr_cast; + enumerator_t *enumerator; + pts_comp_func_name_t *name; + uint8_t flags; + uint32_t depth; + bool first_component = TRUE; + + if (!(state->get_action_flags(state) & IMV_ATTESTATION_AIK)) + { + break; + } + + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_END); + + if (!pts->get_aik_id(pts)) + { + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_NO_TRUSTED_AIK); + return FALSE; + } + + enumerator = attestation_state->create_component_enumerator( + attestation_state); + while (enumerator->enumerate(enumerator, &flags, &depth, &name)) + { + if (first_component) + { + attr = tcg_pts_attr_req_func_comp_evid_create(); + attr->set_noskip_flag(attr, TRUE); + first_component = FALSE; + DBG2(DBG_IMV, "evidence request by"); + } + name->log(name, " "); + + /* TODO check flags against negotiated_caps */ + attr_cast = (tcg_pts_attr_req_func_comp_evid_t *)attr; + attr_cast->add_component(attr_cast, flags, depth, name); + } + enumerator->destroy(enumerator); + + if (attr) + { + /* Send Request Functional Component Evidence attribute */ + out_msg->add_attribute(out_msg, attr); + + /* Send Generate Attestation Evidence attribute */ + attr = tcg_pts_attr_gen_attest_evid_create(); + attr->set_noskip_flag(attr, TRUE); + out_msg->add_attribute(out_msg, attr); + + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_EVID_FINAL); + } + break; + } + default: + break; + } + + return TRUE; +} diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_build.h b/src/libimcv/plugins/imv_attestation/imv_attestation_build.h new file mode 100644 index 000000000..88538b198 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_build.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_attestation_build_t imv_attestation_build + * @{ @ingroup imv_attestation + */ + +#ifndef IMV_ATTESTATION_BUILD_H_ +#define IMV_ATTESTATION_BUILD_H_ + +#include "imv_attestation_state.h" + +#include <imv/imv_msg.h> +#include <library.h> + +#include <pts/pts_database.h> +#include <pts/pts_dh_group.h> +#include <pts/pts_meas_algo.h> + +/** + * Process a TCG PTS attribute + * + * @param out_msg outbound PA-TNC message to be built + * @param state state of a given connection + * @param supported_dh_groups supported DH groups + * @param pts_db PTS configuration database + * @return TRUE if successful + */ +bool imv_attestation_build(imv_msg_t *out_msg, imv_state_t *state, + pts_dh_group_t supported_dh_groups, + pts_database_t *pts_db); + +#endif /** IMV_ATTESTATION_BUILD_H_ @}*/ diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_process.c b/src/libimcv/plugins/imv_attestation/imv_attestation_process.c new file mode 100644 index 000000000..89a1f02cf --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_process.c @@ -0,0 +1,567 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE /* for stdndup() */ +#include <string.h> + +#include "imv_attestation_process.h" + +#include <imcv.h> +#include <ietf/ietf_attr_pa_tnc_error.h> + +#include <pts/pts.h> + +#include <tcg/pts/tcg_pts_attr_aik.h> +#include <tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h> +#include <tcg/pts/tcg_pts_attr_file_meas.h> +#include <tcg/pts/tcg_pts_attr_meas_algo.h> +#include <tcg/pts/tcg_pts_attr_proto_caps.h> +#include <tcg/pts/tcg_pts_attr_simple_comp_evid.h> +#include <tcg/pts/tcg_pts_attr_simple_evid_final.h> +#include <tcg/pts/tcg_pts_attr_tpm_version_info.h> +#include <tcg/pts/tcg_pts_attr_unix_file_meta.h> + +#include <utils/debug.h> +#include <crypto/hashers/hasher.h> + +#include <inttypes.h> + +bool imv_attestation_process(pa_tnc_attr_t *attr, imv_msg_t *out_msg, + imv_state_t *state, + pts_meas_algorithms_t supported_algorithms, + pts_dh_group_t supported_dh_groups, + pts_database_t *pts_db, + credential_manager_t *pts_credmgr) +{ + imv_session_t *session; + imv_attestation_state_t *attestation_state; + pen_type_t attr_type; + pts_t *pts; + + session = state->get_session(state); + attestation_state = (imv_attestation_state_t*)state; + pts = attestation_state->get_pts(attestation_state); + attr_type = attr->get_type(attr); + + switch (attr_type.type) + { + case TCG_PTS_PROTO_CAPS: + { + tcg_pts_attr_proto_caps_t *attr_cast; + pts_proto_caps_flag_t flags; + + attr_cast = (tcg_pts_attr_proto_caps_t*)attr; + flags = attr_cast->get_flags(attr_cast); + pts->set_proto_caps(pts, flags); + break; + } + case TCG_PTS_MEAS_ALGO_SELECTION: + { + tcg_pts_attr_meas_algo_t *attr_cast; + pts_meas_algorithms_t selected_algorithm; + + attr_cast = (tcg_pts_attr_meas_algo_t*)attr; + selected_algorithm = attr_cast->get_algorithms(attr_cast); + if (!(selected_algorithm & supported_algorithms)) + { + DBG1(DBG_IMV, "PTS-IMC selected unsupported" + " measurement algorithm"); + return FALSE; + } + pts->set_meas_algorithm(pts, selected_algorithm); + state->set_action_flags(state, IMV_ATTESTATION_ALGO); + break; + } + case TCG_PTS_DH_NONCE_PARAMS_RESP: + { + tcg_pts_attr_dh_nonce_params_resp_t *attr_cast; + int nonce_len, min_nonce_len; + pts_dh_group_t dh_group; + pts_meas_algorithms_t offered_algorithms, selected_algorithm; + chunk_t responder_value, responder_nonce; + + attr_cast = (tcg_pts_attr_dh_nonce_params_resp_t*)attr; + responder_nonce = attr_cast->get_responder_nonce(attr_cast); + + /* check compliance of responder nonce length */ + min_nonce_len = lib->settings->get_int(lib->settings, + "%s.plugins.imv-attestation.min_nonce_len", 0, lib->ns); + nonce_len = responder_nonce.len; + if (nonce_len < PTS_MIN_NONCE_LEN || + (min_nonce_len > 0 && nonce_len < min_nonce_len)) + { + attr = pts_dh_nonce_error_create( + max(PTS_MIN_NONCE_LEN, min_nonce_len), + PTS_MAX_NONCE_LEN); + out_msg->add_attribute(out_msg, attr); + break; + } + + dh_group = attr_cast->get_dh_group(attr_cast); + if (!(dh_group & supported_dh_groups)) + { + DBG1(DBG_IMV, "PTS-IMC selected unsupported DH group"); + return FALSE; + } + + offered_algorithms = attr_cast->get_hash_algo_set(attr_cast); + selected_algorithm = pts_meas_algo_select(supported_algorithms, + offered_algorithms); + if (selected_algorithm == PTS_MEAS_ALGO_NONE) + { + attr = pts_hash_alg_error_create(supported_algorithms); + out_msg->add_attribute(out_msg, attr); + break; + } + pts->set_dh_hash_algorithm(pts, selected_algorithm); + + if (!pts->create_dh_nonce(pts, dh_group, nonce_len)) + { + return FALSE; + } + + responder_value = attr_cast->get_responder_value(attr_cast); + pts->set_peer_public_value(pts, responder_value, + responder_nonce); + + /* Calculate secret assessment value */ + if (!pts->calculate_secret(pts)) + { + return FALSE; + } + state->set_action_flags(state, IMV_ATTESTATION_DH_NONCE); + break; + } + case TCG_PTS_TPM_VERSION_INFO: + { + tcg_pts_attr_tpm_version_info_t *attr_cast; + chunk_t tpm_version_info; + + attr_cast = (tcg_pts_attr_tpm_version_info_t*)attr; + tpm_version_info = attr_cast->get_tpm_version_info(attr_cast); + pts->set_tpm_version_info(pts, tpm_version_info); + break; + } + case TCG_PTS_AIK: + { + tcg_pts_attr_aik_t *attr_cast; + certificate_t *aik, *issuer; + public_key_t *public; + chunk_t keyid, keyid_hex, device_id; + int aik_id; + enumerator_t *e; + bool trusted = FALSE, trusted_chain = FALSE; + + attr_cast = (tcg_pts_attr_aik_t*)attr; + aik = attr_cast->get_aik(attr_cast); + if (!aik) + { + DBG1(DBG_IMV, "AIK unavailable"); + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_NO_TRUSTED_AIK); + break; + } + + /* check trust into public key as stored in the database */ + public = aik->get_public_key(aik); + public->get_fingerprint(public, KEYID_PUBKEY_INFO_SHA1, &keyid); + DBG1(DBG_IMV, "verifying AIK with keyid %#B", &keyid); + keyid_hex = chunk_to_hex(keyid, NULL, FALSE); + if (session->get_device_id(session, &device_id) && + chunk_equals(keyid_hex, device_id)) + { + trusted = session->get_device_trust(session); + } + else + { + DBG1(DBG_IMV, "device ID unknown or different from AIK keyid"); + } + DBG1(DBG_IMV, "AIK public key is %strusted", trusted ? "" : "not "); + public->destroy(public); + chunk_free(&keyid_hex); + + if (aik->get_type(aik) == CERT_X509) + { + + e = pts_credmgr->create_trusted_enumerator(pts_credmgr, + KEY_ANY, aik->get_issuer(aik), FALSE); + while (e->enumerate(e, &issuer)) + { + if (aik->issued_by(aik, issuer, NULL)) + { + trusted_chain = TRUE; + break; + } + } + e->destroy(e); + DBG1(DBG_IMV, "AIK certificate is %strusted", + trusted_chain ? "" : "not "); + if (!trusted || !trusted_chain) + { + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_NO_TRUSTED_AIK); + break; + } + } + session->get_session_id(session, NULL, &aik_id); + pts->set_aik(pts, aik, aik_id); + state->set_action_flags(state, IMV_ATTESTATION_AIK); + break; + } + case TCG_PTS_FILE_MEAS: + { + TNC_IMV_Evaluation_Result eval; + TNC_IMV_Action_Recommendation rec; + tcg_pts_attr_file_meas_t *attr_cast; + uint16_t request_id; + int arg_int, file_count; + pts_meas_algorithms_t algo; + pts_file_meas_t *measurements; + imv_workitem_t *workitem, *found = NULL; + imv_workitem_type_t type; + char result_str[BUF_LEN]; + bool is_dir, correct; + enumerator_t *enumerator; + + eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT; + algo = pts->get_meas_algorithm(pts); + attr_cast = (tcg_pts_attr_file_meas_t*)attr; + measurements = attr_cast->get_measurements(attr_cast); + request_id = measurements->get_request_id(measurements); + file_count = measurements->get_file_count(measurements); + + DBG1(DBG_IMV, "measurement request %d returned %d file%s:", + request_id, file_count, (file_count == 1) ? "":"s"); + + if (request_id) + { + enumerator = session->create_workitem_enumerator(session); + while (enumerator->enumerate(enumerator, &workitem)) + { + /* request ID consist of lower 16 bits of workitem ID */ + if ((workitem->get_id(workitem) & 0xffff) == request_id) + { + found = workitem; + break; + } + } + + if (!found) + { + DBG1(DBG_IMV, " no entry found for file measurement " + "request %d", request_id); + enumerator->destroy(enumerator); + break; + } + type = found->get_type(found); + arg_int = found->get_arg_int(found); + + switch (type) + { + default: + case IMV_WORKITEM_FILE_REF_MEAS: + case IMV_WORKITEM_FILE_MEAS: + is_dir = FALSE; + break; + case IMV_WORKITEM_DIR_REF_MEAS: + case IMV_WORKITEM_DIR_MEAS: + is_dir = TRUE; + } + + switch (type) + { + case IMV_WORKITEM_FILE_MEAS: + case IMV_WORKITEM_DIR_MEAS: + { + enumerator_t *e; + + /* check hashes from database against measurements */ + e = pts_db->create_file_hash_enumerator(pts_db, + pts->get_platform_id(pts), + algo, is_dir, arg_int); + if (!e) + { + eval = TNC_IMV_EVALUATION_RESULT_ERROR; + break; + } + correct = measurements->verify(measurements, e, is_dir); + if (!correct) + { + attestation_state->set_measurement_error( + attestation_state, + IMV_ATTESTATION_ERROR_FILE_MEAS_FAIL); + eval = TNC_IMV_EVALUATION_RESULT_NONCOMPLIANT_MINOR; + } + e->destroy(e); + + snprintf(result_str, BUF_LEN, "%s measurement%s correct", + is_dir ? "directory" : "file", + correct ? "" : " not"); + break; + } + case IMV_WORKITEM_FILE_REF_MEAS: + case IMV_WORKITEM_DIR_REF_MEAS: + { + enumerator_t *e; + char *filename; + chunk_t measurement; + + e = measurements->create_enumerator(measurements); + while (e->enumerate(e, &filename, &measurement)) + { + if (pts_db->add_file_measurement(pts_db, + pts->get_platform_id(pts), algo, measurement, + filename, is_dir, arg_int) != SUCCESS) + { + eval = TNC_IMV_EVALUATION_RESULT_ERROR; + } + } + e->destroy(e); + snprintf(result_str, BUF_LEN, "%s reference measurement " + "successful", is_dir ? "directory" : "file"); + break; + } + default: + break; + } + + session->remove_workitem(session, enumerator); + enumerator->destroy(enumerator); + rec = found->set_result(found, result_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, found); + found->destroy(found); + } + else + { + measurements->check(measurements, pts_db, + pts->get_platform_id(pts), algo); + } + break; + } + case TCG_PTS_UNIX_FILE_META: + { + tcg_pts_attr_file_meta_t *attr_cast; + int file_count; + pts_file_meta_t *metadata; + pts_file_metadata_t *entry; + time_t created, modified, accessed; + bool utc = FALSE; + enumerator_t *e; + + attr_cast = (tcg_pts_attr_file_meta_t*)attr; + metadata = attr_cast->get_metadata(attr_cast); + file_count = metadata->get_file_count(metadata); + + DBG1(DBG_IMV, "metadata request returned %d file%s:", + file_count, (file_count == 1) ? "":"s"); + + e = metadata->create_enumerator(metadata); + while (e->enumerate(e, &entry)) + { + DBG1(DBG_IMV, " '%s' (%"PRIu64" bytes)" + " owner %"PRIu64", group %"PRIu64", type %N", + entry->filename, entry->filesize, entry->owner, + entry->group, pts_file_type_names, entry->type); + + created = entry->created; + modified = entry->modified; + accessed = entry->accessed; + + DBG1(DBG_IMV, " created %T, modified %T, accessed %T", + &created, utc, &modified, utc, &accessed, utc); + } + e->destroy(e); + break; + } + case TCG_PTS_SIMPLE_COMP_EVID: + { + tcg_pts_attr_simple_comp_evid_t *attr_cast; + pts_comp_func_name_t *name; + pts_comp_evidence_t *evidence; + pts_component_t *comp; + uint32_t depth; + status_t status; + + attr_cast = (tcg_pts_attr_simple_comp_evid_t*)attr; + evidence = attr_cast->get_comp_evidence(attr_cast); + name = evidence->get_comp_func_name(evidence, &depth); + + comp = attestation_state->get_component(attestation_state, name); + if (!comp) + { + DBG1(DBG_IMV, " no entry found for component evidence request"); + break; + } + status = comp->verify(comp, name->get_qualifier(name), pts, evidence); + if (status == VERIFY_ERROR || status == FAILED) + { + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_COMP_EVID_FAIL); + name->log(name, " measurement mismatch for "); + } + break; + } + case TCG_PTS_SIMPLE_EVID_FINAL: + { + tcg_pts_attr_simple_evid_final_t *attr_cast; + uint8_t flags; + pts_meas_algorithms_t comp_hash_algorithm; + chunk_t pcr_comp, tpm_quote_sig, evid_sig; + chunk_t pcr_composite, quote_info, result_buf; + imv_workitem_t *workitem; + imv_reason_string_t *reason_string; + enumerator_t *enumerator; + bool use_quote2, use_ver_info; + bio_writer_t *result; + + attr_cast = (tcg_pts_attr_simple_evid_final_t*)attr; + flags = attr_cast->get_quote_info(attr_cast, &comp_hash_algorithm, + &pcr_comp, &tpm_quote_sig); + + if (flags != PTS_SIMPLE_EVID_FINAL_NO) + { + use_quote2 = (flags == PTS_SIMPLE_EVID_FINAL_QUOTE_INFO2 || + flags == PTS_SIMPLE_EVID_FINAL_QUOTE_INFO2_CAP_VER); + use_ver_info = (flags == PTS_SIMPLE_EVID_FINAL_QUOTE_INFO2_CAP_VER); + + /* Construct PCR Composite and TPM Quote Info structures */ + if (!pts->get_quote_info(pts, use_quote2, use_ver_info, + comp_hash_algorithm, &pcr_composite, "e_info)) + { + DBG1(DBG_IMV, "unable to construct TPM Quote Info"); + return FALSE; + } + + if (!chunk_equals(pcr_comp, pcr_composite)) + { + DBG1(DBG_IMV, "received PCR Composite does not match " + "constructed one"); + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_TPM_QUOTE_FAIL); + goto quote_error; + } + DBG2(DBG_IMV, "received PCR Composite matches constructed one"); + + if (!pts->verify_quote_signature(pts, quote_info, tpm_quote_sig)) + { + attestation_state->set_measurement_error(attestation_state, + IMV_ATTESTATION_ERROR_TPM_QUOTE_FAIL); + goto quote_error; + } + DBG2(DBG_IMV, "TPM Quote Info signature verification successful"); + +quote_error: + free(pcr_composite.ptr); + free(quote_info.ptr); + + /** + * Finalize any pending measurement registrations and check + * if all expected component measurements were received + */ + result = bio_writer_create(128); + attestation_state->finalize_components(attestation_state, + result); + + enumerator = session->create_workitem_enumerator(session); + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_type(workitem) == IMV_WORKITEM_TPM_ATTEST) + { + TNC_IMV_Action_Recommendation rec; + TNC_IMV_Evaluation_Result eval; + uint32_t error; + + error = attestation_state->get_measurement_error( + attestation_state); + if (error & (IMV_ATTESTATION_ERROR_COMP_EVID_FAIL | + IMV_ATTESTATION_ERROR_COMP_EVID_PEND | + IMV_ATTESTATION_ERROR_TPM_QUOTE_FAIL)) + { + reason_string = imv_reason_string_create("en", ", "); + attestation_state->add_comp_evid_reasons( + attestation_state, reason_string); + result->write_data(result, chunk_from_str("; ")); + result->write_data(result, + reason_string->get_encoding(reason_string)); + reason_string->destroy(reason_string); + eval = TNC_IMV_EVALUATION_RESULT_NONCOMPLIANT_MINOR; + } + else + { + eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT; + } + session->remove_workitem(session, enumerator); + + result->write_uint8(result, '\0'); + result_buf = result->get_buf(result); + rec = workitem->set_result(workitem, result_buf.ptr, + eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + workitem->destroy(workitem); + attestation_state->set_handshake_state(attestation_state, + IMV_ATTESTATION_STATE_END); + break; + } + } + enumerator->destroy(enumerator); + result->destroy(result); + } + + if (attr_cast->get_evid_sig(attr_cast, &evid_sig)) + { + /** TODO: What to do with Evidence Signature */ + DBG1(DBG_IMV, "this version of the Attestation IMV can not " + "handle Evidence Signatures"); + } + break; + } + case TCG_SEG_MAX_ATTR_SIZE_RESP: + case TCG_SEG_ATTR_SEG_ENV: + break; + + /* TODO: Not implemented yet */ + case TCG_PTS_INTEG_MEAS_LOG: + /* Attributes using XML */ + case TCG_PTS_TEMPL_REF_MANI_SET_META: + case TCG_PTS_VERIFICATION_RESULT: + case TCG_PTS_INTEG_REPORT: + /* On Windows only*/ + case TCG_PTS_WIN_FILE_META: + case TCG_PTS_REGISTRY_VALUE: + /* Received on IMC side only*/ + case TCG_PTS_REQ_PROTO_CAPS: + case TCG_PTS_DH_NONCE_PARAMS_REQ: + case TCG_PTS_DH_NONCE_FINISH: + case TCG_PTS_MEAS_ALGO: + case TCG_PTS_GET_TPM_VERSION_INFO: + case TCG_PTS_REQ_TEMPL_REF_MANI_SET_META: + case TCG_PTS_UPDATE_TEMPL_REF_MANI: + case TCG_PTS_GET_AIK: + case TCG_PTS_REQ_FUNC_COMP_EVID: + case TCG_PTS_GEN_ATTEST_EVID: + case TCG_PTS_REQ_FILE_META: + case TCG_PTS_REQ_FILE_MEAS: + case TCG_PTS_REQ_INTEG_MEAS_LOG: + default: + DBG1(DBG_IMV, "received unsupported attribute '%N/%N'", + pen_names, PEN_TCG, tcg_attr_names, attr_type.type); + break; + } + return TRUE; +} + diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_process.h b/src/libimcv/plugins/imv_attestation/imv_attestation_process.h new file mode 100644 index 000000000..af8666b66 --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_process.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_attestation_process_t imv_attestation_process + * @{ @ingroup imv_attestation + */ + +#ifndef IMV_ATTESTATION_PROCESS_H_ +#define IMV_ATTESTATION_PROCESS_H_ + +#include "imv_attestation_state.h" + +#include <library.h> +#include <collections/linked_list.h> +#include <credentials/credential_manager.h> +#include <crypto/hashers/hasher.h> + +#include <imv/imv_msg.h> +#include <pa_tnc/pa_tnc_attr.h> + +#include <pts/pts_database.h> +#include <pts/pts_dh_group.h> +#include <pts/pts_meas_algo.h> + +/** + * Process a TCG PTS attribute + * + * @param attr PA-TNC attribute to be processed + * @param out_msg PA-TNC message containing error messages + * @param state state of a given connection + * @param supported_algorithms supported PTS measurement algorithms + * @param supported_dh_groups supported DH groups + * @param pts_db PTS configuration database + * @param pts_credmgr PTS credential manager + * @return TRUE if successful + */ +bool imv_attestation_process(pa_tnc_attr_t *attr, imv_msg_t *out_msg, + imv_state_t *state, + pts_meas_algorithms_t supported_algorithms, + pts_dh_group_t supported_dh_groups, + pts_database_t *pts_db, + credential_manager_t *pts_credmgr); + +#endif /** IMV_ATTESTATION_PROCESS_H_ @}*/ diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_state.c b/src/libimcv/plugins/imv_attestation/imv_attestation_state.c new file mode 100644 index 000000000..1c3b91aeb --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_state.c @@ -0,0 +1,560 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imv_attestation_state.h" + +#include <imcv.h> +#include <imv/imv_lang_string.h> +#include "imv/imv_reason_string.h" + +#include <tncif_policy.h> + +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_imv_attestation_state_t private_imv_attestation_state_t; +typedef struct file_meas_request_t file_meas_request_t; +typedef struct func_comp_t func_comp_t; + +/** + * Private data of an imv_attestation_state_t object. + */ +struct private_imv_attestation_state_t { + + /** + * Public members of imv_attestation_state_t + */ + imv_attestation_state_t public; + + /** + * TNCCS connection ID + */ + TNC_ConnectionID connection_id; + + /** + * TNCCS connection state + */ + TNC_ConnectionState state; + + /** + * Does the TNCCS connection support long message types? + */ + bool has_long; + + /** + * Does the TNCCS connection support exclusive delivery? + */ + bool has_excl; + + /** + * Maximum PA-TNC message size for this TNCCS connection + */ + uint32_t max_msg_len; + + /** + * Flags set for completed actions + */ + uint32_t action_flags; + + /** + * IMV database session associated with TNCCS connection + */ + imv_session_t *session; + + /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** + * IMV Attestation handshake state + */ + imv_attestation_handshake_state_t handshake_state; + + /** + * IMV action recommendation + */ + TNC_IMV_Action_Recommendation rec; + + /** + * IMV evaluation result + */ + TNC_IMV_Evaluation_Result eval; + + /** + * List of Functional Components + */ + linked_list_t *components; + + /** + * PTS object + */ + pts_t *pts; + + /** + * Measurement error flags + */ + uint32_t measurement_error; + + /** + * TNC Reason String + */ + imv_reason_string_t *reason_string; + +}; + +/** + * PTS Functional Component entry + */ +struct func_comp_t { + pts_component_t *comp; + pts_comp_func_name_t* name; +}; + +/** + * Frees a func_comp_t object + */ +static void free_func_comp(func_comp_t *this) +{ + this->comp->destroy(this->comp); + this->name->destroy(this->name); + free(this); +} + +/** + * Supported languages + */ +static char* languages[] = { "en", "de", "mn" }; + +/** + * Table of reason strings + */ +static imv_lang_string_t reason_file_meas_fail[] = { + { "en", "Incorrect file measurement" }, + { "de", "Falsche Dateimessung" }, + { "mn", "Буруу байгаа файл" }, + { NULL, NULL } +}; + +static imv_lang_string_t reason_file_meas_pend[] = { + { "en", "Pending file measurement" }, + { "de", "Ausstehende Dateimessung" }, + { "mn", "Xүлээгдэж байгаа файл" }, + { NULL, NULL } +}; + +static imv_lang_string_t reason_no_trusted_aik[] = { + { "en", "No trusted AIK available" }, + { "de", "Kein vetrauenswürdiger AIK verfügbar" }, + { NULL, NULL } +}; + +static imv_lang_string_t reason_comp_evid_fail[] = { + { "en", "Incorrect component evidence" }, + { "de", "Falsche Komponenten-Evidenz" }, + { "mn", "Буруу компонент хэмжилт" }, + { NULL, NULL } +}; + +static imv_lang_string_t reason_comp_evid_pend[] = { + { "en", "Pending component evidence" }, + { "de", "Ausstehende Komponenten-Evidenz" }, + { "mn", "Xүлээгдэж компонент хэмжилт" }, + { NULL, NULL } +}; + +static imv_lang_string_t reason_tpm_quote_fail[] = { + { "en", "Invalid TPM Quote signature received" }, + { "de", "Falsche TPM Quote Signature erhalten" }, + { "mn", "Буруу TPM Quote гарын үсэг" }, + { NULL, NULL } +}; + +METHOD(imv_state_t, get_connection_id, TNC_ConnectionID, + private_imv_attestation_state_t *this) +{ + return this->connection_id; +} + +METHOD(imv_state_t, has_long, bool, + private_imv_attestation_state_t *this) +{ + return this->has_long; +} + +METHOD(imv_state_t, has_excl, bool, + private_imv_attestation_state_t *this) +{ + return this->has_excl; +} + +METHOD(imv_state_t, set_flags, void, + private_imv_attestation_state_t *this, bool has_long, bool has_excl) +{ + this->has_long = has_long; + this->has_excl = has_excl; +} + +METHOD(imv_state_t, set_max_msg_len, void, + private_imv_attestation_state_t *this, uint32_t max_msg_len) +{ + this->max_msg_len = max_msg_len; +} + +METHOD(imv_state_t, get_max_msg_len, uint32_t, + private_imv_attestation_state_t *this) +{ + return this->max_msg_len; +} + +METHOD(imv_state_t, set_action_flags, void, + private_imv_attestation_state_t *this, uint32_t flags) +{ + this->action_flags |= flags; +} + +METHOD(imv_state_t, get_action_flags, uint32_t, + private_imv_attestation_state_t *this) +{ + return this->action_flags; +} + +METHOD(imv_state_t, set_session, void, + private_imv_attestation_state_t *this, imv_session_t *session) +{ + this->session = session; +} + +METHOD(imv_state_t, get_session, imv_session_t*, + private_imv_attestation_state_t *this) +{ + return this->session; +} + +METHOD(imv_state_t, get_contracts, seg_contract_manager_t*, + private_imv_attestation_state_t *this) +{ + return this->contracts; +} + +METHOD(imv_state_t, change_state, void, + private_imv_attestation_state_t *this, TNC_ConnectionState new_state) +{ + this->state = new_state; +} + +METHOD(imv_state_t, get_recommendation, void, + private_imv_attestation_state_t *this, TNC_IMV_Action_Recommendation *rec, + TNC_IMV_Evaluation_Result *eval) +{ + *rec = this->rec; + *eval = this->eval; +} + +METHOD(imv_state_t, set_recommendation, void, + private_imv_attestation_state_t *this, TNC_IMV_Action_Recommendation rec, + TNC_IMV_Evaluation_Result eval) +{ + this->rec = rec; + this->eval = eval; +} + +METHOD(imv_state_t, update_recommendation, void, + private_imv_attestation_state_t *this, TNC_IMV_Action_Recommendation rec, + TNC_IMV_Evaluation_Result eval) +{ + this->rec = tncif_policy_update_recommendation(this->rec, rec); + this->eval = tncif_policy_update_evaluation(this->eval, eval); +} + +METHOD(imv_attestation_state_t, add_file_meas_reasons, void, + private_imv_attestation_state_t *this, imv_reason_string_t *reason_string) +{ + if (this->measurement_error & IMV_ATTESTATION_ERROR_FILE_MEAS_FAIL) + { + reason_string->add_reason(reason_string, reason_file_meas_fail); + } + if (this->measurement_error & IMV_ATTESTATION_ERROR_FILE_MEAS_PEND) + { + reason_string->add_reason(reason_string, reason_file_meas_pend); + } +} + +METHOD(imv_attestation_state_t, add_comp_evid_reasons, void, + private_imv_attestation_state_t *this, imv_reason_string_t *reason_string) +{ + if (this->measurement_error & IMV_ATTESTATION_ERROR_NO_TRUSTED_AIK) + { + reason_string->add_reason(reason_string, reason_no_trusted_aik); + } + if (this->measurement_error & IMV_ATTESTATION_ERROR_COMP_EVID_FAIL) + { + reason_string->add_reason(reason_string, reason_comp_evid_fail); + } + if (this->measurement_error & IMV_ATTESTATION_ERROR_COMP_EVID_PEND) + { + reason_string->add_reason(reason_string, reason_comp_evid_pend); + } + if (this->measurement_error & IMV_ATTESTATION_ERROR_TPM_QUOTE_FAIL) + { + reason_string->add_reason(reason_string, reason_tpm_quote_fail); + } +} + +METHOD(imv_state_t, get_reason_string, bool, + private_imv_attestation_state_t *this, enumerator_t *language_enumerator, + chunk_t *reason_string, char **reason_language) +{ + *reason_language = imv_lang_string_select_lang(language_enumerator, + languages, countof(languages)); + + /* Instantiate a TNC Reason String object */ + DESTROY_IF(this->reason_string); + this->reason_string = imv_reason_string_create(*reason_language, "\n"); + add_file_meas_reasons(this, this->reason_string); + add_comp_evid_reasons(this, this->reason_string); + *reason_string = this->reason_string->get_encoding(this->reason_string); + + return TRUE; +} + +METHOD(imv_state_t, get_remediation_instructions, bool, + private_imv_attestation_state_t *this, enumerator_t *language_enumerator, + chunk_t *string, char **lang_code, char **uri) +{ + return FALSE; +} + +METHOD(imv_state_t, destroy, void, + private_imv_attestation_state_t *this) +{ + DESTROY_IF(this->session); + DESTROY_IF(this->reason_string); + this->components->destroy_function(this->components, (void *)free_func_comp); + this->pts->destroy(this->pts); + this->contracts->destroy(this->contracts); + free(this); +} + +METHOD(imv_attestation_state_t, get_handshake_state, + imv_attestation_handshake_state_t, private_imv_attestation_state_t *this) +{ + return this->handshake_state; +} + +METHOD(imv_attestation_state_t, set_handshake_state, void, + private_imv_attestation_state_t *this, + imv_attestation_handshake_state_t new_state) +{ + this->handshake_state = new_state; +} + +METHOD(imv_attestation_state_t, get_pts, pts_t*, + private_imv_attestation_state_t *this) +{ + return this->pts; +} + +METHOD(imv_attestation_state_t, create_component, pts_component_t*, + private_imv_attestation_state_t *this, pts_comp_func_name_t *name, + uint32_t depth, pts_database_t *pts_db) +{ + enumerator_t *enumerator; + func_comp_t *entry, *new_entry; + pts_component_t *component; + bool found = FALSE; + + enumerator = this->components->create_enumerator(this->components); + while (enumerator->enumerate(enumerator, &entry)) + { + if (name->equals(name, entry->comp->get_comp_func_name(entry->comp))) + { + found = TRUE; + break; + } + } + enumerator->destroy(enumerator); + + if (found) + { + if (name->equals(name, entry->name)) + { + /* duplicate entry */ + return NULL; + } + new_entry = malloc_thing(func_comp_t); + new_entry->name = name->clone(name); + new_entry->comp = entry->comp->get_ref(entry->comp); + this->components->insert_last(this->components, new_entry); + return entry->comp; + } + else + { + component = imcv_pts_components->create(imcv_pts_components, + name, depth, pts_db); + if (!component) + { + /* unsupported component */ + return NULL; + } + new_entry = malloc_thing(func_comp_t); + new_entry->name = name->clone(name); + new_entry->comp = component; + this->components->insert_last(this->components, new_entry); + return component; + } +} + +/** + * Enumerate file measurement entries + */ +static bool entry_filter(void *null, func_comp_t **entry, uint8_t *flags, + void *i2, uint32_t *depth, + void *i3, pts_comp_func_name_t **comp_name) +{ + pts_component_t *comp; + pts_comp_func_name_t *name; + + comp = (*entry)->comp; + name = (*entry)->name; + + *flags = comp->get_evidence_flags(comp); + *depth = comp->get_depth(comp); + *comp_name = name; + + return TRUE; +} + +METHOD(imv_attestation_state_t, create_component_enumerator, enumerator_t*, + private_imv_attestation_state_t *this) +{ + return enumerator_create_filter( + this->components->create_enumerator(this->components), + (void*)entry_filter, NULL, NULL); +} + +METHOD(imv_attestation_state_t, get_component, pts_component_t*, + private_imv_attestation_state_t *this, pts_comp_func_name_t *name) +{ + enumerator_t *enumerator; + func_comp_t *entry; + pts_component_t *found = NULL; + + enumerator = this->components->create_enumerator(this->components); + while (enumerator->enumerate(enumerator, &entry)) + { + if (name->equals(name, entry->name)) + { + found = entry->comp; + break; + } + } + enumerator->destroy(enumerator); + return found; +} + +METHOD(imv_attestation_state_t, get_measurement_error, uint32_t, + private_imv_attestation_state_t *this) +{ + return this->measurement_error; +} + +METHOD(imv_attestation_state_t, set_measurement_error, void, + private_imv_attestation_state_t *this, uint32_t error) +{ + this->measurement_error |= error; +} + +METHOD(imv_attestation_state_t, finalize_components, void, + private_imv_attestation_state_t *this, bio_writer_t *result) +{ + func_comp_t *entry; + bool first = TRUE; + + while (this->components->remove_last(this->components, + (void**)&entry) == SUCCESS) + { + if (first) + { + first = FALSE; + } + else + { + result->write_data(result, chunk_from_str("; ")); + } + if (!entry->comp->finalize(entry->comp, + entry->name->get_qualifier(entry->name), + result)) + { + set_measurement_error(this, IMV_ATTESTATION_ERROR_COMP_EVID_PEND); + } + free_func_comp(entry); + } +} + +/** + * Described in header. + */ +imv_state_t *imv_attestation_state_create(TNC_ConnectionID connection_id) +{ + private_imv_attestation_state_t *this; + + INIT(this, + .public = { + .interface = { + .get_connection_id = _get_connection_id, + .has_long = _has_long, + .has_excl = _has_excl, + .set_flags = _set_flags, + .set_max_msg_len = _set_max_msg_len, + .get_max_msg_len = _get_max_msg_len, + .set_action_flags = _set_action_flags, + .get_action_flags = _get_action_flags, + .set_session = _set_session, + .get_session = _get_session, + .get_contracts = _get_contracts, + .change_state = _change_state, + .get_recommendation = _get_recommendation, + .set_recommendation = _set_recommendation, + .update_recommendation = _update_recommendation, + .get_reason_string = _get_reason_string, + .get_remediation_instructions = _get_remediation_instructions, + .destroy = _destroy, + }, + .get_handshake_state = _get_handshake_state, + .set_handshake_state = _set_handshake_state, + .get_pts = _get_pts, + .create_component = _create_component, + .create_component_enumerator = _create_component_enumerator, + .get_component = _get_component, + .finalize_components = _finalize_components, + .get_measurement_error = _get_measurement_error, + .set_measurement_error = _set_measurement_error, + .add_file_meas_reasons = _add_file_meas_reasons, + .add_comp_evid_reasons = _add_comp_evid_reasons, + }, + .connection_id = connection_id, + .state = TNC_CONNECTION_STATE_CREATE, + .handshake_state = IMV_ATTESTATION_STATE_INIT, + .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, + .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, + .contracts = seg_contract_manager_create(), + .components = linked_list_create(), + .pts = pts_create(FALSE), + ); + + return &this->public.interface; +} diff --git a/src/libimcv/plugins/imv_attestation/imv_attestation_state.h b/src/libimcv/plugins/imv_attestation/imv_attestation_state.h new file mode 100644 index 000000000..39a8eee9c --- /dev/null +++ b/src/libimcv/plugins/imv_attestation/imv_attestation_state.h @@ -0,0 +1,192 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_attestation imv_attestation + * @ingroup libimcv_plugins + * + * @defgroup imv_attestation_state_t imv_attestation_state + * @{ @ingroup imv_attestation + */ + +#ifndef IMV_ATTESTATION_STATE_H_ +#define IMV_ATTESTATION_STATE_H_ + +#include <imv/imv_state.h> +#include <imv/imv_reason_string.h> +#include <pts/pts.h> +#include <pts/pts_database.h> +#include <pts/components/pts_component.h> + +#include <library.h> +#include <bio/bio_writer.h> + +typedef struct imv_attestation_state_t imv_attestation_state_t; +typedef enum imv_attestation_flag_t imv_attestation_flag_t; +typedef enum imv_attestation_handshake_state_t imv_attestation_handshake_state_t; +typedef enum imv_meas_error_t imv_meas_error_t; + +/** + * IMV Attestation Flags set for completed actions + */ +enum imv_attestation_flag_t { + IMV_ATTESTATION_ATTR_PRODUCT_INFO = (1<<0), + IMV_ATTESTATION_ATTR_STRING_VERSION = (1<<1), + IMV_ATTESTATION_ATTR_DEVICE_ID = (1<<2), + IMV_ATTESTATION_ATTR_MUST = (1<<3)-1, + IMV_ATTESTATION_ATTR_REQ = (1<<3), + IMV_ATTESTATION_ALGO = (1<<4), + IMV_ATTESTATION_DH_NONCE = (1<<5), + IMV_ATTESTATION_AIK = (1<<6), + IMV_ATTESTATION_FILE_MEAS = (1<<7), + IMV_ATTESTATION_REC = (1<<8) +}; + +/** + * IMV Attestation Handshake States (state machine) + */ +enum imv_attestation_handshake_state_t { + IMV_ATTESTATION_STATE_INIT, + IMV_ATTESTATION_STATE_DISCOVERY, + IMV_ATTESTATION_STATE_NONCE_REQ, + IMV_ATTESTATION_STATE_TPM_INIT, + IMV_ATTESTATION_STATE_COMP_EVID, + IMV_ATTESTATION_STATE_EVID_FINAL, + IMV_ATTESTATION_STATE_END, +}; + +/** + * IMV Measurement Error Types + */ +enum imv_meas_error_t { + IMV_ATTESTATION_ERROR_FILE_MEAS_FAIL = 1, + IMV_ATTESTATION_ERROR_FILE_MEAS_PEND = 2, + IMV_ATTESTATION_ERROR_NO_TRUSTED_AIK = 4, + IMV_ATTESTATION_ERROR_COMP_EVID_FAIL = 8, + IMV_ATTESTATION_ERROR_COMP_EVID_PEND = 16, + IMV_ATTESTATION_ERROR_TPM_QUOTE_FAIL = 32 +}; + +/** + * Internal state of an imv_attestation_t connection instance + */ +struct imv_attestation_state_t { + + /** + * imv_state_t interface + */ + imv_state_t interface; + + /** + * Get state of the handshake + * + * @return the handshake state of IMV + */ + imv_attestation_handshake_state_t (*get_handshake_state)( + imv_attestation_state_t *this); + + /** + * Set state of the handshake + * + * @param new_state the handshake state of IMV + */ + void (*set_handshake_state)(imv_attestation_state_t *this, + imv_attestation_handshake_state_t new_state); + + /** + * Get the PTS object + * + * @return PTS object + */ + pts_t* (*get_pts)(imv_attestation_state_t *this); + + /** + * Create and add an entry to the list of Functional Components + * + * @param name Component Functional Name + * @param depth Sub-component Depth + * @param pts_db PTS measurement database + * @return created functional component instance or NULL + */ + pts_component_t* (*create_component)(imv_attestation_state_t *this, + pts_comp_func_name_t *name, + uint32_t depth, + pts_database_t *pts_db); + + /** + * Enumerate over all Functional Components + * + * @return Functional Component enumerator + */ + enumerator_t* (*create_component_enumerator)(imv_attestation_state_t *this); + + /** + * Get a Functional Component with a given name + * + * @param name Name of the requested Functional Component + * @return Functional Component if found, NULL otherwise + */ + pts_component_t* (*get_component)(imv_attestation_state_t *this, + pts_comp_func_name_t *name); + + /** + * Tell the Functional Components to finalize any measurement registrations + * and to check if all expected measurements were received + * + * @param result Writer appending component measurement results + */ + void (*finalize_components)(imv_attestation_state_t *this, + bio_writer_t *result); + + /** + * Indicates the types of measurement errors that occurred + * + * @return Measurement error flags + */ + uint32_t (*get_measurement_error)(imv_attestation_state_t *this); + + /** + * Call if a measurement error is encountered + * + * @param error Measurement error type + */ + void (*set_measurement_error)(imv_attestation_state_t *this, + uint32_t error); + + /** + * Returns a concatenation of File Measurement reason strings + * + * @param reason_string Concatenated reason strings + */ + void (*add_file_meas_reasons)(imv_attestation_state_t *this, + imv_reason_string_t *reason_string); + + /** + * Returns a concatenation of Component Evidence reason strings + * + * @param reason_string Concatenated reason strings + */ + void (*add_comp_evid_reasons)(imv_attestation_state_t *this, + imv_reason_string_t *reason_string); +}; + +/** + * Create an imv_attestation_state_t instance + * + * @param id connection ID + */ +imv_state_t* imv_attestation_state_create(TNC_ConnectionID id); + +#endif /** IMV_ATTESTATION_STATE_H_ @}*/ diff --git a/src/libimcv/plugins/imv_os/Makefile.in b/src/libimcv/plugins/imv_os/Makefile.in index cae6dbe84..36e708fc9 100644 --- a/src/libimcv/plugins/imv_os/Makefile.in +++ b/src/libimcv/plugins/imv_os/Makefile.in @@ -238,6 +238,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -298,6 +299,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -363,6 +365,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -410,6 +414,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ diff --git a/src/libimcv/plugins/imv_os/imv_os_agent.c b/src/libimcv/plugins/imv_os/imv_os_agent.c index ca8bac6ca..f0b1936ab 100644 --- a/src/libimcv/plugins/imv_os/imv_os_agent.c +++ b/src/libimcv/plugins/imv_os/imv_os_agent.c @@ -37,8 +37,9 @@ #include <ita/ita_attr.h> #include <ita/ita_attr_get_settings.h> #include <ita/ita_attr_settings.h> -#include <ita/ita_attr_angel.h> #include <ita/ita_attr_device_id.h> +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" #include <tncif_names.h> #include <tncif_pa_subtypes.h> @@ -46,6 +47,8 @@ #include <pen/pen.h> #include <utils/debug.h> +#define INSTALLED_PACKAGES_MAX_ATTR_SIZE 100000000 + typedef struct private_imv_os_agent_t private_imv_os_agent_t; typedef enum imv_os_attr_t imv_os_attr_t; @@ -166,20 +169,23 @@ static TNC_Result receive_msg(private_imv_os_agent_t *this, imv_state_t *state, chunk_t os_name = chunk_empty; chunk_t os_version = chunk_empty; bool fatal_error = FALSE, assessment = FALSE; + uint16_t missing; os_state = (imv_os_state_t*)state; session = state->get_session(state); os_info = session->get_os_info(session); + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imv_msg_create_as_reply(in_msg); + /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, &fatal_error); + result = in_msg->receive(in_msg,out_msg, &fatal_error); if (result != TNC_RESULT_SUCCESS) { + out_msg->destroy(out_msg); return result; } - out_msg = imv_msg_create_as_reply(in_msg); - /* analyze PA-TNC attributes */ enumerator = in_msg->create_attribute_enumerator(in_msg); while (enumerator->enumerate(enumerator, &attr)) @@ -323,6 +329,9 @@ static TNC_Result receive_msg(private_imv_os_agent_t *this, imv_state_t *state, TNC_IMV_EVALUATION_RESULT_ERROR); assessment = TRUE; } + missing = attr_cast->get_count(attr_cast); + os_state->set_missing(os_state, missing); + attr_cast->clear_packages(attr_cast); break; } default: @@ -369,12 +378,6 @@ static TNC_Result receive_msg(private_imv_os_agent_t *this, imv_state_t *state, session->set_device_id(session, value); break; } - case ITA_ATTR_START_ANGEL: - os_state->set_angel_count(os_state, TRUE); - break; - case ITA_ATTR_STOP_ANGEL: - os_state->set_angel_count(os_state, FALSE); - break; default: break; } @@ -394,20 +397,20 @@ static TNC_Result receive_msg(private_imv_os_agent_t *this, imv_state_t *state, { os_state->set_handshake_state(os_state, IMV_OS_STATE_END); result = out_msg->send_assessment(out_msg); - out_msg->destroy(out_msg); - if (result != TNC_RESULT_SUCCESS) + if (result == TNC_RESULT_SUCCESS) { - return result; + result = this->agent->provide_recommendation(this->agent, state); } - return this->agent->provide_recommendation(this->agent, state); } - - /* send PA-TNC message with excl flag set */ - result = out_msg->send(out_msg, TRUE); + else + { + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); + } out_msg->destroy(out_msg); return result; - } +} METHOD(imv_agent_if_t, receive_message, TNC_Result, private_imv_os_agent_t *this, TNC_ConnectionID id, @@ -529,6 +532,30 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result, if (handshake_state == IMV_OS_STATE_INIT) { + size_t max_attr_size = INSTALLED_PACKAGES_MAX_ATTR_SIZE; + size_t max_seg_size; + seg_contract_t *contract; + seg_contract_manager_t *contracts; + char buf[BUF_LEN]; + + /* Determine maximum PA-TNC attribute segment size */ + max_seg_size = state->get_max_msg_len(state) + - PA_TNC_HEADER_SIZE + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_SEG_ENV_HEADER + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_MAX_SIZE_SIZE; + + /* Announce support of PA-TNC segmentation to IMC */ + contract = seg_contract_create(msg_types[0], max_attr_size, + max_seg_size, TRUE, imv_id, FALSE); + contract->get_info_string(contract, buf, BUF_LEN, TRUE); + DBG2(DBG_IMV, "%s", buf); + contracts = state->get_contracts(state); + contracts->add_contract(contracts, contract); + attr = tcg_seg_attr_max_size_create(max_attr_size, max_seg_size, TRUE); + out_msg->add_attribute(out_msg, attr); + if ((received & IMV_OS_ATTR_MUST) != IMV_OS_ATTR_MUST) { /* create attribute request for missing mandatory attributes */ @@ -671,7 +698,7 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result, int count, count_update, count_blacklist, count_ok; if (!(received & IMV_OS_ATTR_INSTALLED_PACKAGES) || - os_state->get_angel_count(os_state) > 0) + os_state->get_missing(os_state) > 0) { continue; } diff --git a/src/libimcv/plugins/imv_os/imv_os_state.c b/src/libimcv/plugins/imv_os/imv_os_state.c index dc8474ac9..ac826a77c 100644 --- a/src/libimcv/plugins/imv_os/imv_os_state.c +++ b/src/libimcv/plugins/imv_os/imv_os_state.c @@ -76,6 +76,11 @@ struct private_imv_os_state_t { imv_session_t *session; /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** * IMV action recommendation */ TNC_IMV_Action_Recommendation rec; @@ -136,9 +141,9 @@ struct private_imv_os_state_t { u_int os_settings; /** - * Angel count + * Number of installed packages still missing */ - int angel_count; + uint16_t missing; }; @@ -327,6 +332,12 @@ METHOD(imv_state_t, get_session, imv_session_t*, return this->session; } +METHOD(imv_state_t, get_contracts, seg_contract_manager_t*, + private_imv_os_state_t *this) +{ + return this->contracts; +} + METHOD(imv_state_t, get_recommendation, void, private_imv_os_state_t *this, TNC_IMV_Action_Recommendation *rec, TNC_IMV_Evaluation_Result *eval) @@ -461,6 +472,7 @@ METHOD(imv_state_t, destroy, void, DESTROY_IF(this->session); DESTROY_IF(this->reason_string); DESTROY_IF(this->remediation_string); + this->contracts->destroy(this->contracts); this->update_packages->destroy_function(this->update_packages, free); this->remove_packages->destroy_function(this->remove_packages, free); free(this); @@ -523,16 +535,16 @@ METHOD(imv_os_state_t, get_os_settings, u_int, return this->os_settings; } -METHOD(imv_os_state_t, set_angel_count, void, - private_imv_os_state_t *this, bool start) +METHOD(imv_os_state_t, set_missing, void, + private_imv_os_state_t *this, uint16_t missing) { - this->angel_count += start ? 1 : -1; + this->missing = missing; } -METHOD(imv_os_state_t, get_angel_count, int, +METHOD(imv_os_state_t, get_missing, uint16_t, private_imv_os_state_t *this) { - return this->angel_count; + return this->missing; } METHOD(imv_os_state_t, add_bad_package, void, @@ -571,6 +583,7 @@ imv_state_t *imv_os_state_create(TNC_ConnectionID connection_id) .get_action_flags = _get_action_flags, .set_session = _set_session, .get_session = _get_session, + .get_contracts = _get_contracts, .change_state = _change_state, .get_recommendation = _get_recommendation, .set_recommendation = _set_recommendation, @@ -585,14 +598,15 @@ imv_state_t *imv_os_state_create(TNC_ConnectionID connection_id) .get_count = _get_count, .set_os_settings = _set_os_settings, .get_os_settings = _get_os_settings, - .set_angel_count = _set_angel_count, - .get_angel_count = _get_angel_count, + .set_missing = _set_missing, + .get_missing = _get_missing, .add_bad_package = _add_bad_package, }, .state = TNC_CONNECTION_STATE_CREATE, .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, .connection_id = connection_id, + .contracts = seg_contract_manager_create(), .update_packages = linked_list_create(), .remove_packages = linked_list_create(), ); diff --git a/src/libimcv/plugins/imv_os/imv_os_state.h b/src/libimcv/plugins/imv_os/imv_os_state.h index 82ebb6cc9..aa9b64076 100644 --- a/src/libimcv/plugins/imv_os/imv_os_state.h +++ b/src/libimcv/plugins/imv_os/imv_os_state.h @@ -114,18 +114,18 @@ struct imv_os_state_t { u_int (*get_os_settings)(imv_os_state_t *this); /** - * Increase/Decrease the ITA Angel count + * Set number of installed packages still missing * - * @param start TRUE increases and FALSE decreases count by one + * @param missing Number of missing installed packages */ - void (*set_angel_count)(imv_os_state_t *this, bool start); + void (*set_missing)(imv_os_state_t *this, uint16_t missing); /** - * Get the ITA Angel count + * Get number of installed packages still missing * - * @return ITA Angel count + * @return Number of missing installed packages */ - int (*get_angel_count)(imv_os_state_t *this); + uint16_t (*get_missing)(imv_os_state_t *this); /** * Store a bad package that has to be updated or removed diff --git a/src/libimcv/plugins/imv_scanner/Makefile.in b/src/libimcv/plugins/imv_scanner/Makefile.in index 18446e73a..2677b339a 100644 --- a/src/libimcv/plugins/imv_scanner/Makefile.in +++ b/src/libimcv/plugins/imv_scanner/Makefile.in @@ -232,6 +232,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -292,6 +293,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -357,6 +359,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -404,6 +408,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ diff --git a/src/libimcv/plugins/imv_scanner/imv_scanner_agent.c b/src/libimcv/plugins/imv_scanner/imv_scanner_agent.c index 85ef23b80..cbabc80bf 100644 --- a/src/libimcv/plugins/imv_scanner/imv_scanner_agent.c +++ b/src/libimcv/plugins/imv_scanner/imv_scanner_agent.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Andreas Steffen + * Copyright (C) 2013-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -94,10 +94,14 @@ static TNC_Result receive_msg(private_imv_scanner_agent_t *this, ietf_attr_port_filter_t *port_filter_attr; bool fatal_error = FALSE; + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imv_msg_create_as_reply(in_msg); + /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, &fatal_error); + result = in_msg->receive(in_msg, out_msg, &fatal_error); if (result != TNC_RESULT_SUCCESS) { + out_msg->destroy(out_msg); return result; } @@ -121,17 +125,20 @@ static TNC_Result receive_msg(private_imv_scanner_agent_t *this, state->set_recommendation(state, TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, TNC_IMV_EVALUATION_RESULT_ERROR); - out_msg = imv_msg_create_as_reply(in_msg); result = out_msg->send_assessment(out_msg); - out_msg->destroy(out_msg); - if (result != TNC_RESULT_SUCCESS) + if (result == TNC_RESULT_SUCCESS) { - return result; + result = this->agent->provide_recommendation(this->agent, state); } - return this->agent->provide_recommendation(this->agent, state); } + else + { + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); + } + out_msg->destroy(out_msg); - return TNC_RESULT_SUCCESS; + return result; } METHOD(imv_agent_if_t, receive_message, TNC_Result, diff --git a/src/libimcv/plugins/imv_scanner/imv_scanner_state.c b/src/libimcv/plugins/imv_scanner/imv_scanner_state.c index 24a49a76c..8f9593f17 100644 --- a/src/libimcv/plugins/imv_scanner/imv_scanner_state.c +++ b/src/libimcv/plugins/imv_scanner/imv_scanner_state.c @@ -71,6 +71,11 @@ struct private_imv_scanner_state_t { imv_session_t *session; /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** * IMV action recommendation */ TNC_IMV_Action_Recommendation rec; @@ -211,6 +216,12 @@ METHOD(imv_state_t, get_session, imv_session_t*, return this->session; } +METHOD(imv_state_t, get_contracts, seg_contract_manager_t*, + private_imv_scanner_state_t *this) +{ + return this->contracts; +} + METHOD(imv_state_t, change_state, void, private_imv_scanner_state_t *this, TNC_ConnectionState new_state) { @@ -299,6 +310,7 @@ METHOD(imv_state_t, destroy, void, DESTROY_IF(this->reason_string); DESTROY_IF(this->remediation_string); DESTROY_IF(&this->port_filter_attr->pa_tnc_attribute); + this->contracts->destroy(this->contracts); this->violating_ports->destroy_function(this->violating_ports, free); free(this); } @@ -354,6 +366,7 @@ imv_state_t *imv_scanner_state_create(TNC_ConnectionID connection_id) .get_action_flags = _get_action_flags, .set_session = _set_session, .get_session= _get_session, + .get_contracts = _get_contracts, .change_state = _change_state, .get_recommendation = _get_recommendation, .set_recommendation = _set_recommendation, @@ -372,6 +385,7 @@ imv_state_t *imv_scanner_state_create(TNC_ConnectionID connection_id) .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, .connection_id = connection_id, + .contracts = seg_contract_manager_create(), .violating_ports = linked_list_create(), ); diff --git a/src/libimcv/plugins/imv_swid/Makefile.am b/src/libimcv/plugins/imv_swid/Makefile.am new file mode 100644 index 000000000..3a63b67d2 --- /dev/null +++ b/src/libimcv/plugins/imv_swid/Makefile.am @@ -0,0 +1,21 @@ +AM_CPPFLAGS = \ + -I$(top_srcdir)/src/libstrongswan \ + -I$(top_srcdir)/src/libtncif \ + -I$(top_srcdir)/src/libimcv + +AM_CFLAGS = \ + $(PLUGIN_CFLAGS) $(json_CFLAGS) + +imcv_LTLIBRARIES = imv-swid.la + +imv_swid_la_LIBADD = \ + $(top_builddir)/src/libimcv/libimcv.la \ + $(top_builddir)/src/libstrongswan/libstrongswan.la \ + $(json_LIBS) + +imv_swid_la_SOURCES = \ + imv_swid.c imv_swid_state.h imv_swid_state.c \ + imv_swid_agent.h imv_swid_agent.c \ + imv_swid_rest.h imv_swid_rest.c + +imv_swid_la_LDFLAGS = -module -avoid-version -no-undefined diff --git a/src/libimcv/plugins/imv_swid/Makefile.in b/src/libimcv/plugins/imv_swid/Makefile.in new file mode 100644 index 000000000..815722f9c --- /dev/null +++ b/src/libimcv/plugins/imv_swid/Makefile.in @@ -0,0 +1,769 @@ +# Makefile.in generated by automake 1.14.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)' +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; \ + sane_makeflags=$$MAKEFLAGS; \ + if $(am__is_gnu_make); then \ + sane_makeflags=$$MFLAGS; \ + else \ + case $$MAKEFLAGS in \ + *\\[\ \ ]*) \ + bs=\\; \ + sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \ + | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \ + esac; \ + fi; \ + skip_next=no; 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install-exec \ + install-exec-am install-html install-html-am \ + install-imcvLTLIBRARIES install-info install-info-am \ + install-man install-pdf install-pdf-am install-ps \ + install-ps-am install-strip installcheck installcheck-am \ + installdirs maintainer-clean maintainer-clean-generic \ + mostlyclean mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \ + uninstall-am uninstall-imcvLTLIBRARIES + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libimcv/plugins/imv_swid/imv_swid.c b/src/libimcv/plugins/imv_swid/imv_swid.c new file mode 100644 index 000000000..cab011580 --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid.c @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2013 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imv_swid_agent.h" + +static const char imv_name[] = "SWID"; +static const imv_agent_create_t imv_agent_create = imv_swid_agent_create; + +/* include generic TGC TNC IF-IMV API code below */ + +#include <imv/imv_if.h> + diff --git a/src/libimcv/plugins/imv_swid/imv_swid_agent.c b/src/libimcv/plugins/imv_swid/imv_swid_agent.c new file mode 100644 index 000000000..5bebf32c0 --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid_agent.c @@ -0,0 +1,726 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE +#include <stdio.h> + +#include "imv_swid_agent.h" +#include "imv_swid_state.h" +#include "imv_swid_rest.h" + +#include <imcv.h> +#include <imv/imv_agent.h> +#include <imv/imv_msg.h> +#include <ietf/ietf_attr_pa_tnc_error.h> +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" +#include "tcg/swid/tcg_swid_attr_req.h" +#include "tcg/swid/tcg_swid_attr_tag_inv.h" +#include "tcg/swid/tcg_swid_attr_tag_id_inv.h" +#include "swid/swid_error.h" +#include "swid/swid_inventory.h" + +#include <tncif_names.h> +#include <tncif_pa_subtypes.h> + +#include <pen/pen.h> +#include <utils/debug.h> +#include <bio/bio_reader.h> + +typedef struct private_imv_swid_agent_t private_imv_swid_agent_t; + +/* Subscribed PA-TNC message subtypes */ +static pen_type_t msg_types[] = { + { PEN_TCG, PA_SUBTYPE_TCG_SWID } +}; + +/** + * Flag set when corresponding attribute has been received + */ +enum imv_swid_attr_t { + IMV_SWID_ATTR_TAG_INV = (1<<0), + IMV_SWID_ATTR_TAG_ID_INV = (1<<1) +}; + +/** + * Private data of an imv_swid_agent_t object. + */ +struct private_imv_swid_agent_t { + + /** + * Public members of imv_swid_agent_t + */ + imv_agent_if_t public; + + /** + * IMV agent responsible for generic functions + */ + imv_agent_t *agent; + + /** + * REST API to strongTNC manager + */ + imv_swid_rest_t *rest_api; + +}; + +METHOD(imv_agent_if_t, bind_functions, TNC_Result, + private_imv_swid_agent_t *this, TNC_TNCS_BindFunctionPointer bind_function) +{ + return this->agent->bind_functions(this->agent, bind_function); +} + +METHOD(imv_agent_if_t, notify_connection_change, TNC_Result, + private_imv_swid_agent_t *this, TNC_ConnectionID id, + TNC_ConnectionState new_state) +{ + imv_state_t *state; + + switch (new_state) + { + case TNC_CONNECTION_STATE_CREATE: + state = imv_swid_state_create(id); + return this->agent->create_state(this->agent, state); + case TNC_CONNECTION_STATE_DELETE: + return this->agent->delete_state(this->agent, id); + default: + return this->agent->change_state(this->agent, id, new_state, NULL); + } +} + +/** + * Process a received message + */ +static TNC_Result receive_msg(private_imv_swid_agent_t *this, + imv_state_t *state, imv_msg_t *in_msg) +{ + imv_swid_state_t *swid_state; + imv_msg_t *out_msg; + enumerator_t *enumerator; + pa_tnc_attr_t *attr; + TNC_Result result; + bool fatal_error = FALSE; + + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imv_msg_create_as_reply(in_msg); + + /* parse received PA-TNC message and handle local and remote errors */ + result = in_msg->receive(in_msg, out_msg, &fatal_error); + if (result != TNC_RESULT_SUCCESS) + { + out_msg->destroy(out_msg); + return result; + } + + swid_state = (imv_swid_state_t*)state; + + /* analyze PA-TNC attributes */ + enumerator = in_msg->create_attribute_enumerator(in_msg); + while (enumerator->enumerate(enumerator, &attr)) + { + uint32_t request_id = 0, last_eid, eid_epoch; + swid_inventory_t *inventory; + pen_type_t type; + + type = attr->get_type(attr); + + if (type.vendor_id == PEN_IETF && type.type == IETF_ATTR_PA_TNC_ERROR) + { + ietf_attr_pa_tnc_error_t *error_attr; + pen_type_t error_code; + chunk_t msg_info, description; + bio_reader_t *reader; + uint32_t max_attr_size; + bool success; + + error_attr = (ietf_attr_pa_tnc_error_t*)attr; + error_code = error_attr->get_error_code(error_attr); + + if (error_code.vendor_id == PEN_TCG) + { + fatal_error = TRUE; + msg_info = error_attr->get_msg_info(error_attr); + reader = bio_reader_create(msg_info); + success = reader->read_uint32(reader, &request_id); + + DBG1(DBG_IMV, "received TCG error '%N' for request %d", + swid_error_code_names, error_code.type, request_id); + if (!success) + { + reader->destroy(reader); + continue; + } + if (error_code.type == TCG_SWID_RESPONSE_TOO_LARGE) + { + if (!reader->read_uint32(reader, &max_attr_size)) + { + reader->destroy(reader); + continue; + } + DBG1(DBG_IMV, " maximum PA-TNC attribute size is %u bytes", + max_attr_size); + } + description = reader->peek(reader); + if (description.len) + { + DBG1(DBG_IMV, " description: %.*s", description.len, + description.ptr); + } + reader->destroy(reader); + } + } + else if (type.vendor_id != PEN_TCG) + { + continue; + } + + switch (type.type) + { + case TCG_SWID_TAG_ID_INVENTORY: + { + tcg_swid_attr_tag_id_inv_t *attr_cast; + uint32_t missing; + int tag_id_count; + + state->set_action_flags(state, IMV_SWID_ATTR_TAG_ID_INV); + + attr_cast = (tcg_swid_attr_tag_id_inv_t*)attr; + request_id = attr_cast->get_request_id(attr_cast); + last_eid = attr_cast->get_last_eid(attr_cast, &eid_epoch); + inventory = attr_cast->get_inventory(attr_cast); + tag_id_count = inventory->get_count(inventory); + missing = attr_cast->get_tag_id_count(attr_cast); + swid_state->set_missing(swid_state, missing); + + DBG2(DBG_IMV, "received SWID tag ID inventory with %d item%s " + "for request %d at eid %d of epoch 0x%08x, %d item%s to " + "follow", tag_id_count, (tag_id_count == 1) ? "" : "s", + request_id, last_eid, eid_epoch, missing, + (missing == 1) ? "" : "s"); + + if (request_id == swid_state->get_request_id(swid_state)) + { + swid_state->set_swid_inventory(swid_state, inventory); + swid_state->set_count(swid_state, tag_id_count, 0); + } + else + { + DBG1(DBG_IMV, "no workitem found for SWID tag ID inventory " + "with request ID %d", request_id); + } + attr_cast->clear_inventory(attr_cast); + break; + } + case TCG_SWID_TAG_INVENTORY: + { + tcg_swid_attr_tag_inv_t *attr_cast; + swid_tag_t *tag; + chunk_t tag_encoding; + json_object *jobj, *jarray, *jstring; + char *tag_str; + uint32_t missing; + int tag_count; + enumerator_t *e; + + state->set_action_flags(state, IMV_SWID_ATTR_TAG_INV); + + attr_cast = (tcg_swid_attr_tag_inv_t*)attr; + request_id = attr_cast->get_request_id(attr_cast); + last_eid = attr_cast->get_last_eid(attr_cast, &eid_epoch); + inventory = attr_cast->get_inventory(attr_cast); + tag_count = inventory->get_count(inventory); + missing = attr_cast->get_tag_count(attr_cast); + swid_state->set_missing(swid_state, missing); + + DBG2(DBG_IMV, "received SWID tag inventory with %d item%s for " + "request %d at eid %d of epoch 0x%08x, %d item%s to follow", + tag_count, (tag_count == 1) ? "" : "s", request_id, + last_eid, eid_epoch, missing, (missing == 1) ? "" : "s"); + + if (request_id == swid_state->get_request_id(swid_state)) + { + swid_state->set_count(swid_state, 0, tag_count); + + if (this->rest_api) + { + jobj = json_object_new_object(); + jarray = json_object_new_array(); + json_object_object_add(jobj, "data", jarray); + + e = inventory->create_enumerator(inventory); + while (e->enumerate(e, &tag)) + { + tag_encoding = tag->get_encoding(tag); + tag_str = strndup(tag_encoding.ptr, tag_encoding.len); + DBG3(DBG_IMV, "%s", tag_str); + jstring = json_object_new_string(tag_str); + json_object_array_add(jarray, jstring); + free(tag_str); + } + e->destroy(e); + + if (this->rest_api->post(this->rest_api, + "swid/add-tags/", jobj, NULL) != SUCCESS) + { + DBG1(DBG_IMV, "error in REST API add-tags request"); + } + json_object_put(jobj); + } + } + else + { + DBG1(DBG_IMV, "no workitem found for SWID tag inventory " + "with request ID %d", request_id); + } + attr_cast->clear_inventory(attr_cast); + break; + } + default: + break; + } + } + enumerator->destroy(enumerator); + + if (fatal_error) + { + state->set_recommendation(state, + TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, + TNC_IMV_EVALUATION_RESULT_ERROR); + result = out_msg->send_assessment(out_msg); + if (result == TNC_RESULT_SUCCESS) + { + result = this->agent->provide_recommendation(this->agent, state); + } + } + else + { + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); + } + out_msg->destroy(out_msg); + + return result; +} + +METHOD(imv_agent_if_t, receive_message, TNC_Result, + private_imv_swid_agent_t *this, TNC_ConnectionID id, + TNC_MessageType msg_type, chunk_t msg) +{ + imv_state_t *state; + imv_msg_t *in_msg; + TNC_Result result; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imv_msg_create_from_data(this->agent, state, id, msg_type, msg); + result = receive_msg(this, state, in_msg); + in_msg->destroy(in_msg); + + return result; +} + +METHOD(imv_agent_if_t, receive_message_long, TNC_Result, + private_imv_swid_agent_t *this, TNC_ConnectionID id, + TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id, + TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype, chunk_t msg) +{ + imv_state_t *state; + imv_msg_t *in_msg; + TNC_Result result; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + in_msg = imv_msg_create_from_long_data(this->agent, state, id, + src_imc_id, dst_imv_id, msg_vid, msg_subtype, msg); + result = receive_msg(this, state, in_msg); + in_msg->destroy(in_msg); + + return result; + +} + +METHOD(imv_agent_if_t, batch_ending, TNC_Result, + private_imv_swid_agent_t *this, TNC_ConnectionID id) +{ + imv_msg_t *out_msg; + imv_state_t *state; + imv_session_t *session; + imv_workitem_t *workitem; + imv_swid_state_t *swid_state; + imv_swid_handshake_state_t handshake_state; + pa_tnc_attr_t *attr; + TNC_IMVID imv_id; + TNC_Result result = TNC_RESULT_SUCCESS; + bool no_workitems = TRUE; + uint32_t request_id, received; + uint8_t flags; + enumerator_t *enumerator; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + swid_state = (imv_swid_state_t*)state; + handshake_state = swid_state->get_handshake_state(swid_state); + session = state->get_session(state); + imv_id = this->agent->get_id(this->agent); + + if (handshake_state == IMV_SWID_STATE_END) + { + return TNC_RESULT_SUCCESS; + } + + /* Create an empty out message - we might need it */ + out_msg = imv_msg_create(this->agent, state, id, imv_id, TNC_IMCID_ANY, + msg_types[0]); + + if (!imcv_db) + { + DBG2(DBG_IMV, "no workitems available - no evaluation possible"); + state->set_recommendation(state, + TNC_IMV_ACTION_RECOMMENDATION_ALLOW, + TNC_IMV_EVALUATION_RESULT_DONT_KNOW); + result = out_msg->send_assessment(out_msg); + out_msg->destroy(out_msg); + swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END); + + if (result != TNC_RESULT_SUCCESS) + { + return result; + } + return this->agent->provide_recommendation(this->agent, state); + } + + /* Look for SWID tag workitem and create SWID tag request */ + if (handshake_state == IMV_SWID_STATE_INIT && + session->get_policy_started(session)) + { + size_t max_attr_size = SWID_MAX_ATTR_SIZE; + size_t max_seg_size; + seg_contract_t *contract; + seg_contract_manager_t *contracts; + char buf[BUF_LEN]; + + enumerator = session->create_workitem_enumerator(session); + if (enumerator) + { + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_imv_id(workitem) != TNC_IMVID_ANY || + workitem->get_type(workitem) != IMV_WORKITEM_SWID_TAGS) + { + continue; + } + + flags = TCG_SWID_ATTR_REQ_FLAG_NONE; + if (strchr(workitem->get_arg_str(workitem), 'R')) + { + flags |= TCG_SWID_ATTR_REQ_FLAG_R; + } + if (strchr(workitem->get_arg_str(workitem), 'S')) + { + flags |= TCG_SWID_ATTR_REQ_FLAG_S; + } + if (strchr(workitem->get_arg_str(workitem), 'C')) + { + flags |= TCG_SWID_ATTR_REQ_FLAG_C; + } + + /* Determine maximum PA-TNC attribute segment size */ + max_seg_size = state->get_max_msg_len(state) + - PA_TNC_HEADER_SIZE + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_SEG_ENV_HEADER + - PA_TNC_ATTR_HEADER_SIZE + - TCG_SEG_ATTR_MAX_SIZE_SIZE; + + /* Announce support of PA-TNC segmentation to IMC */ + contract = seg_contract_create(msg_types[0], max_attr_size, + max_seg_size, TRUE, imv_id, FALSE); + contract->get_info_string(contract, buf, BUF_LEN, TRUE); + DBG2(DBG_IMV, "%s", buf); + contracts = state->get_contracts(state); + contracts->add_contract(contracts, contract); + attr = tcg_seg_attr_max_size_create(max_attr_size, + max_seg_size, TRUE); + out_msg->add_attribute(out_msg, attr); + + /* Issue a SWID request */ + request_id = workitem->get_id(workitem); + swid_state->set_request_id(swid_state, request_id); + attr = tcg_swid_attr_req_create(flags, request_id, 0); + out_msg->add_attribute(out_msg, attr); + workitem->set_imv_id(workitem, imv_id); + no_workitems = FALSE; + DBG2(DBG_IMV, "IMV %d issues SWID request %d", + imv_id, request_id); + break; + } + enumerator->destroy(enumerator); + + if (no_workitems) + { + DBG2(DBG_IMV, "IMV %d has no workitems - " + "no evaluation requested", imv_id); + state->set_recommendation(state, + TNC_IMV_ACTION_RECOMMENDATION_ALLOW, + TNC_IMV_EVALUATION_RESULT_DONT_KNOW); + } + handshake_state = IMV_SWID_STATE_WORKITEMS; + swid_state->set_handshake_state(swid_state, handshake_state); + } + } + + received = state->get_action_flags(state); + + if (handshake_state == IMV_SWID_STATE_WORKITEMS && + (received & (IMV_SWID_ATTR_TAG_INV|IMV_SWID_ATTR_TAG_ID_INV)) && + swid_state->get_missing(swid_state) == 0) + { + TNC_IMV_Evaluation_Result eval; + TNC_IMV_Action_Recommendation rec; + char result_str[BUF_LEN], *error_str = "", *command; + char *target, *separator; + int tag_id_count, tag_count, i; + chunk_t tag_creator, unique_sw_id; + json_object *jrequest, *jresponse, *jvalue; + tcg_swid_attr_req_t *cast_attr; + swid_tag_id_t *tag_id; + status_t status = SUCCESS; + + if (this->rest_api && (received & IMV_SWID_ATTR_TAG_ID_INV)) + { + if (asprintf(&command, "sessions/%d/swid-measurement/", + session->get_session_id(session, NULL, NULL)) < 0) + { + error_str = "allocation of command string failed"; + status = FAILED; + } + else + { + jrequest = swid_state->get_swid_inventory(swid_state); + status = this->rest_api->post(this->rest_api, command, + jrequest, &jresponse); + if (status == FAILED) + { + error_str = "error in REST API swid-measurement request"; + } + free(command); + } + } + + switch (status) + { + case SUCCESS: + enumerator = session->create_workitem_enumerator(session); + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS) + { + swid_state->get_count(swid_state, &tag_id_count, + &tag_count); + snprintf(result_str, BUF_LEN, "received inventory of " + "%d SWID tag ID%s and %d SWID tag%s", + tag_id_count, (tag_id_count == 1) ? "" : "s", + tag_count, (tag_count == 1) ? "" : "s"); + session->remove_workitem(session, enumerator); + + eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT; + rec = workitem->set_result(workitem, result_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + workitem->destroy(workitem); + break; + } + } + enumerator->destroy(enumerator); + break; + case NEED_MORE: + if (received & IMV_SWID_ATTR_TAG_INV) + { + error_str = "not all requested SWID tags were received"; + status = FAILED; + json_object_put(jresponse); + break; + } + if (json_object_get_type(jresponse) != json_type_array) + { + error_str = "response was not a json_array"; + status = FAILED; + json_object_put(jresponse); + break; + } + + /* Create a TCG SWID Request attribute */ + attr = tcg_swid_attr_req_create(TCG_SWID_ATTR_REQ_FLAG_NONE, + swid_state->get_request_id(swid_state), 0); + tag_id_count = json_object_array_length(jresponse); + DBG1(DBG_IMV, "%d SWID tag target%s", tag_id_count, + (tag_id_count == 1) ? "" : "s"); + swid_state->set_missing(swid_state, tag_id_count); + + for (i = 0; i < tag_id_count; i++) + { + jvalue = json_object_array_get_idx(jresponse, i); + if (json_object_get_type(jvalue) != json_type_string) + { + error_str = "json_string element expected in json_array"; + status = FAILED; + json_object_put(jresponse); + break; + } + target = (char*)json_object_get_string(jvalue); + DBG1(DBG_IMV, " %s", target); + + /* Separate target into tag_creator and unique_sw_id */ + separator = strchr(target, '_'); + if (!separator) + { + error_str = "separation of regid from " + "unique software ID failed"; + break; + } + tag_creator = chunk_create(target, separator - target); + separator++; + unique_sw_id = chunk_create(separator, strlen(target) - + tag_creator.len - 1); + tag_id = swid_tag_id_create(tag_creator, unique_sw_id, + chunk_empty); + cast_attr = (tcg_swid_attr_req_t*)attr; + cast_attr->add_target(cast_attr, tag_id); + } + json_object_put(jresponse); + + out_msg->add_attribute(out_msg, attr); + break; + case FAILED: + default: + break; + } + + if (status == FAILED) + { + enumerator = session->create_workitem_enumerator(session); + while (enumerator->enumerate(enumerator, &workitem)) + { + if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS) + { + session->remove_workitem(session, enumerator); + eval = TNC_IMV_EVALUATION_RESULT_ERROR; + rec = workitem->set_result(workitem, error_str, eval); + state->update_recommendation(state, rec, eval); + imcv_db->finalize_workitem(imcv_db, workitem); + workitem->destroy(workitem); + break; + } + } + enumerator->destroy(enumerator); + } + } + + /* finalized all workitems ? */ + if (handshake_state == IMV_SWID_STATE_WORKITEMS && + session->get_workitem_count(session, imv_id) == 0) + { + result = out_msg->send_assessment(out_msg); + out_msg->destroy(out_msg); + swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END); + + if (result != TNC_RESULT_SUCCESS) + { + return result; + } + return this->agent->provide_recommendation(this->agent, state); + } + + /* send non-empty PA-TNC message with excl flag not set */ + if (out_msg->get_attribute_count(out_msg)) + { + result = out_msg->send(out_msg, FALSE); + } + out_msg->destroy(out_msg); + + return result; +} + +METHOD(imv_agent_if_t, solicit_recommendation, TNC_Result, + private_imv_swid_agent_t *this, TNC_ConnectionID id) +{ + imv_state_t *state; + + if (!this->agent->get_state(this->agent, id, &state)) + { + return TNC_RESULT_FATAL; + } + return this->agent->provide_recommendation(this->agent, state); +} + +METHOD(imv_agent_if_t, destroy, void, + private_imv_swid_agent_t *this) +{ + DESTROY_IF(this->rest_api); + this->agent->destroy(this->agent); + free(this); +} + +/** + * Described in header. + */ +imv_agent_if_t *imv_swid_agent_create(const char *name, TNC_IMVID id, + TNC_Version *actual_version) +{ + private_imv_swid_agent_t *this; + imv_agent_t *agent; + char *rest_api_uri; + u_int rest_api_timeout; + + agent = imv_agent_create(name, msg_types, countof(msg_types), id, + actual_version); + if (!agent) + { + return NULL; + } + agent->add_non_fatal_attr_type(agent, + pen_type_create(PEN_TCG, TCG_SEG_MAX_ATTR_SIZE_REQ)); + + INIT(this, + .public = { + .bind_functions = _bind_functions, + .notify_connection_change = _notify_connection_change, + .receive_message = _receive_message, + .receive_message_long = _receive_message_long, + .batch_ending = _batch_ending, + .solicit_recommendation = _solicit_recommendation, + .destroy = _destroy, + }, + .agent = agent, + ); + + rest_api_uri = lib->settings->get_str(lib->settings, + "%s.plugins.imv-swid.rest_api_uri", NULL, lib->ns); + rest_api_timeout = lib->settings->get_int(lib->settings, + "%s.plugins.imv-swid.rest_api_timeout", 120, lib->ns); + if (rest_api_uri) + { + this->rest_api = imv_swid_rest_create(rest_api_uri, rest_api_timeout); + } + + return &this->public; +} + diff --git a/src/libimcv/plugins/imv_swid/imv_swid_agent.h b/src/libimcv/plugins/imv_swid/imv_swid_agent.h new file mode 100644 index 000000000..4218040bc --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid_agent.h @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2013 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_swid_agent_t imv_swid_agent + * @{ @ingroup imv_swid + */ + +#ifndef IMV_SWID_AGENT_H_ +#define IMV_SWID_AGENT_H_ + +#include <imv/imv_agent_if.h> + +/** + * Creates an SWID IMV agent + * + * @param name Name of the IMV + * @param id ID of the IMV + * @param actual_version TNC IF-IMV version + */ +imv_agent_if_t* imv_swid_agent_create(const char* name, TNC_IMVID id, + TNC_Version *actual_version); + +#endif /** IMV_SWID_AGENT_H_ @}*/ diff --git a/src/libimcv/plugins/imv_swid/imv_swid_rest.c b/src/libimcv/plugins/imv_swid/imv_swid_rest.c new file mode 100644 index 000000000..143b0b239 --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid_rest.c @@ -0,0 +1,122 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE +#include <stdio.h> + +#include "imv_swid_rest.h" + +typedef struct private_imv_swid_rest_t private_imv_swid_rest_t; + +/** + * Private data of an imv_swid_rest_t object. + */ +struct private_imv_swid_rest_t { + + /** + * Public members of imv_swid_rest_t + */ + imv_swid_rest_t public; + + /** + * URI of REST API + */ + char *uri; + + /** + * Timeout of REST API connection + */ + u_int timeout; + +}; + +#define HTTP_STATUS_CODE_PRECONDITION_FAILED 412 + +METHOD(imv_swid_rest_t, post, status_t, + private_imv_swid_rest_t *this, char *command, json_object *jrequest, + json_object **jresponse) +{ + struct json_tokener *tokener; + chunk_t data, response = chunk_empty; + status_t status; + char *uri; + int code; + + if (asprintf(&uri, "%s%s",this->uri, command) < 0) + { + return FAILED; + } + data = chunk_from_str((char*)json_object_to_json_string(jrequest)); + + status = lib->fetcher->fetch(lib->fetcher, uri, &response, + FETCH_TIMEOUT, this->timeout, + FETCH_REQUEST_DATA, data, + FETCH_REQUEST_TYPE, "application/json; charset=utf-8", + FETCH_REQUEST_HEADER, "Accept: application/json", + FETCH_REQUEST_HEADER, "Expect:", + FETCH_RESPONSE_CODE, &code, + FETCH_END); + free(uri); + + if (status == SUCCESS) + { + return SUCCESS; + } + + if (code != HTTP_STATUS_CODE_PRECONDITION_FAILED || !response.ptr) + { + DBG2(DBG_IMV, "REST http request failed with status code: %d", code); + return FAILED; + } + + if (jresponse) + { + /* Parse HTTP response into a JSON object */ + tokener = json_tokener_new(); + *jresponse = json_tokener_parse_ex(tokener, response.ptr, response.len); + json_tokener_free(tokener); + } + free(response.ptr); + + return NEED_MORE; +} + +METHOD(imv_swid_rest_t, destroy, void, + private_imv_swid_rest_t *this) +{ + free(this->uri); + free(this); +} + +/** + * Described in header. + */ +imv_swid_rest_t *imv_swid_rest_create(char *uri, u_int timeout) +{ + private_imv_swid_rest_t *this; + + INIT(this, + .public = { + .post = _post, + .destroy = _destroy, + }, + .uri = strdup(uri), + .timeout = timeout, + ); + + return &this->public; +} + + diff --git a/src/libimcv/plugins/imv_swid/imv_swid_rest.h b/src/libimcv/plugins/imv_swid/imv_swid_rest.h new file mode 100644 index 000000000..32392cbe6 --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid_rest.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_swid imv_swid + * @ingroup libimcv_plugins + * + * @defgroup imv_swid_rest_t imv_swid_rest + * @{ @ingroup imv_swid + */ + +#ifndef IMV_SWID_REST_H_ +#define IMV_SWID_REST_H_ + +#include <library.h> + +#include <json.h> + +typedef struct imv_swid_rest_t imv_swid_rest_t; + +/** + * Public REST interface + */ +struct imv_swid_rest_t { + + /** + * Post a HTTP request including a JSON object + * + * @param jreq JSON object in HTTP request + * @param jresp JSON object in HTTP response if NEED_MORE + * @return Status (SUCCESS, NEED_MORE or FAILED) + */ + status_t (*post)(imv_swid_rest_t *this, char *command, json_object *jreq, + json_object **jresp); + + /** + * Destroy imv_swid_rest_t object + */ + void (*destroy)(imv_swid_rest_t *this); + +}; + +/** + * Create an imv_swid_rest_t instance + * + * @param uri REST URI (http://username:password@hostname[:port]/api/) + * @param timeout Timeout of the REST connection + */ +imv_swid_rest_t* imv_swid_rest_create(char *uri, u_int timeout); + +#endif /** IMV_SWID_REST_H_ @}*/ diff --git a/src/libimcv/plugins/imv_swid/imv_swid_state.c b/src/libimcv/plugins/imv_swid/imv_swid_state.c new file mode 100644 index 000000000..04364b030 --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid_state.c @@ -0,0 +1,402 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imv_swid_state.h" + +#include <imv/imv_lang_string.h> +#include <imv/imv_reason_string.h> +#include <imv/imv_remediation_string.h> +#include <swid/swid_tag_id.h> + +#include <tncif_policy.h> + +#include <utils/lexparser.h> +#include <utils/debug.h> + +typedef struct private_imv_swid_state_t private_imv_swid_state_t; + +/** + * Private data of an imv_swid_state_t object. + */ +struct private_imv_swid_state_t { + + /** + * Public members of imv_swid_state_t + */ + imv_swid_state_t public; + + /** + * TNCCS connection ID + */ + TNC_ConnectionID connection_id; + + /** + * TNCCS connection state + */ + TNC_ConnectionState state; + + /** + * Does the TNCCS connection support long message types? + */ + bool has_long; + + /** + * Does the TNCCS connection support exclusive delivery? + */ + bool has_excl; + + /** + * Maximum PA-TNC message size for this TNCCS connection + */ + uint32_t max_msg_len; + + /** + * Flags set for completed actions + */ + uint32_t action_flags; + + /** + * IMV database session associated with TNCCS connection + */ + imv_session_t *session; + + /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** + * IMV action recommendation + */ + TNC_IMV_Action_Recommendation rec; + + /** + * IMV evaluation result + */ + TNC_IMV_Evaluation_Result eval; + + /** + * IMV Scanner handshake state + */ + imv_swid_handshake_state_t handshake_state; + + /** + * TNC Reason String + */ + imv_reason_string_t *reason_string; + + /** + * IETF Remediation Instructions String + */ + imv_remediation_string_t *remediation_string; + + /** + * SWID Tag Request ID + */ + uint32_t request_id; + + /** + * Number of processed SWID Tag IDs + */ + int tag_id_count; + + /** + * Number of processed SWID Tags + */ + int tag_count; + + /** + * Number of missing SWID Tags or Tag IDs + */ + uint32_t missing; + + /** + * Top level JSON object + */ + json_object *jobj; + + /** + * JSON array containing an inventory of SWID Tag IDs + */ + json_object *jarray; + +}; + +METHOD(imv_state_t, get_connection_id, TNC_ConnectionID, + private_imv_swid_state_t *this) +{ + return this->connection_id; +} + +METHOD(imv_state_t, has_long, bool, + private_imv_swid_state_t *this) +{ + return this->has_long; +} + +METHOD(imv_state_t, has_excl, bool, + private_imv_swid_state_t *this) +{ + return this->has_excl; +} + +METHOD(imv_state_t, set_flags, void, + private_imv_swid_state_t *this, bool has_long, bool has_excl) +{ + this->has_long = has_long; + this->has_excl = has_excl; +} + +METHOD(imv_state_t, set_max_msg_len, void, + private_imv_swid_state_t *this, uint32_t max_msg_len) +{ + this->max_msg_len = max_msg_len; +} + +METHOD(imv_state_t, get_max_msg_len, uint32_t, + private_imv_swid_state_t *this) +{ + return this->max_msg_len; +} + +METHOD(imv_state_t, set_action_flags, void, + private_imv_swid_state_t *this, uint32_t flags) +{ + this->action_flags |= flags; +} + +METHOD(imv_state_t, get_action_flags, uint32_t, + private_imv_swid_state_t *this) +{ + return this->action_flags; +} + +METHOD(imv_state_t, set_session, void, + private_imv_swid_state_t *this, imv_session_t *session) +{ + this->session = session; +} + +METHOD(imv_state_t, get_session, imv_session_t*, + private_imv_swid_state_t *this) +{ + return this->session; +} + +METHOD(imv_state_t, get_contracts, seg_contract_manager_t*, + private_imv_swid_state_t *this) +{ + return this->contracts; +} + +METHOD(imv_state_t, change_state, void, + private_imv_swid_state_t *this, TNC_ConnectionState new_state) +{ + this->state = new_state; +} + +METHOD(imv_state_t, get_recommendation, void, + private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation *rec, + TNC_IMV_Evaluation_Result *eval) +{ + *rec = this->rec; + *eval = this->eval; +} + +METHOD(imv_state_t, set_recommendation, void, + private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation rec, + TNC_IMV_Evaluation_Result eval) +{ + this->rec = rec; + this->eval = eval; +} + +METHOD(imv_state_t, update_recommendation, void, + private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation rec, + TNC_IMV_Evaluation_Result eval) +{ + this->rec = tncif_policy_update_recommendation(this->rec, rec); + this->eval = tncif_policy_update_evaluation(this->eval, eval); +} + +METHOD(imv_state_t, get_reason_string, bool, + private_imv_swid_state_t *this, enumerator_t *language_enumerator, + chunk_t *reason_string, char **reason_language) +{ + return FALSE; +} + +METHOD(imv_state_t, get_remediation_instructions, bool, + private_imv_swid_state_t *this, enumerator_t *language_enumerator, + chunk_t *string, char **lang_code, char **uri) +{ + return FALSE; +} + +METHOD(imv_state_t, destroy, void, + private_imv_swid_state_t *this) +{ + json_object_put(this->jobj); + DESTROY_IF(this->session); + DESTROY_IF(this->reason_string); + DESTROY_IF(this->remediation_string); + this->contracts->destroy(this->contracts); + free(this); +} + +METHOD(imv_swid_state_t, set_handshake_state, void, + private_imv_swid_state_t *this, imv_swid_handshake_state_t new_state) +{ + this->handshake_state = new_state; +} + +METHOD(imv_swid_state_t, get_handshake_state, imv_swid_handshake_state_t, + private_imv_swid_state_t *this) +{ + return this->handshake_state; +} + +METHOD(imv_swid_state_t, set_request_id, void, + private_imv_swid_state_t *this, uint32_t request_id) +{ + this->request_id = request_id; +} + +METHOD(imv_swid_state_t, get_request_id, uint32_t, + private_imv_swid_state_t *this) +{ + return this->request_id; +} + +METHOD(imv_swid_state_t, set_swid_inventory, void, + private_imv_swid_state_t *this, swid_inventory_t *inventory) +{ + chunk_t tag_creator, unique_sw_id; + char software_id[256]; + json_object *jstring; + swid_tag_id_t *tag_id; + enumerator_t *enumerator; + + enumerator = inventory->create_enumerator(inventory); + while (enumerator->enumerate(enumerator, &tag_id)) + { + /* Construct software ID from tag creator and unique software ID */ + tag_creator = tag_id->get_tag_creator(tag_id); + unique_sw_id = tag_id->get_unique_sw_id(tag_id, NULL); + snprintf(software_id, 256, "%.*s_%.*s", + tag_creator.len, tag_creator.ptr, + unique_sw_id.len, unique_sw_id.ptr); + DBG3(DBG_IMV, " %s", software_id); + + /* Add software ID to JSON array */ + jstring = json_object_new_string(software_id); + json_object_array_add(this->jarray, jstring); + } + enumerator->destroy(enumerator); +} + +METHOD(imv_swid_state_t, get_swid_inventory, json_object*, + private_imv_swid_state_t *this) +{ + return this->jobj; +} + +METHOD(imv_swid_state_t, set_missing, void, + private_imv_swid_state_t *this, uint32_t count) +{ + this->missing = count; +} + +METHOD(imv_swid_state_t, get_missing, uint32_t, + private_imv_swid_state_t *this) +{ + return this->missing; +} + +METHOD(imv_swid_state_t, set_count, void, + private_imv_swid_state_t *this, int tag_id_count, int tag_count) +{ + this->tag_id_count += tag_id_count; + this->tag_count += tag_count; +} + +METHOD(imv_swid_state_t, get_count, void, + private_imv_swid_state_t *this, int *tag_id_count, int *tag_count) +{ + if (tag_id_count) + { + *tag_id_count = this->tag_id_count; + } + if (tag_count) + { + *tag_count = this->tag_count; + } +} + +/** + * Described in header. + */ +imv_state_t *imv_swid_state_create(TNC_ConnectionID connection_id) +{ + private_imv_swid_state_t *this; + + INIT(this, + .public = { + .interface = { + .get_connection_id = _get_connection_id, + .has_long = _has_long, + .has_excl = _has_excl, + .set_flags = _set_flags, + .set_max_msg_len = _set_max_msg_len, + .get_max_msg_len = _get_max_msg_len, + .set_action_flags = _set_action_flags, + .get_action_flags = _get_action_flags, + .set_session = _set_session, + .get_session= _get_session, + .get_contracts = _get_contracts, + .change_state = _change_state, + .get_recommendation = _get_recommendation, + .set_recommendation = _set_recommendation, + .update_recommendation = _update_recommendation, + .get_reason_string = _get_reason_string, + .get_remediation_instructions = _get_remediation_instructions, + .destroy = _destroy, + }, + .set_handshake_state = _set_handshake_state, + .get_handshake_state = _get_handshake_state, + .set_request_id = _set_request_id, + .get_request_id = _get_request_id, + .set_swid_inventory = _set_swid_inventory, + .get_swid_inventory = _get_swid_inventory, + .set_missing = _set_missing, + .get_missing = _get_missing, + .set_count = _set_count, + .get_count = _get_count, + }, + .state = TNC_CONNECTION_STATE_CREATE, + .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, + .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, + .connection_id = connection_id, + .contracts = seg_contract_manager_create(), + .jobj = json_object_new_object(), + .jarray = json_object_new_array(), + ); + + json_object_object_add(this->jobj, "data", this->jarray); + + return &this->public.interface; +} + + diff --git a/src/libimcv/plugins/imv_swid/imv_swid_state.h b/src/libimcv/plugins/imv_swid/imv_swid_state.h new file mode 100644 index 000000000..af5d95c9d --- /dev/null +++ b/src/libimcv/plugins/imv_swid/imv_swid_state.h @@ -0,0 +1,136 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup imv_swid imv_swid + * @ingroup libimcv_plugins + * + * @defgroup imv_swid_state_t imv_swid_state + * @{ @ingroup imv_swid + */ + +#ifndef IMV_SWID_STATE_H_ +#define IMV_SWID_STATE_H_ + +#include <imv/imv_state.h> +#include <swid/swid_inventory.h> +#include <library.h> + +#include <json.h> + +typedef struct imv_swid_state_t imv_swid_state_t; +typedef enum imv_swid_handshake_state_t imv_swid_handshake_state_t; + +/** + * IMV OS Handshake States (state machine) + */ +enum imv_swid_handshake_state_t { + IMV_SWID_STATE_INIT, + IMV_SWID_STATE_WORKITEMS, + IMV_SWID_STATE_END +}; + +/** + * Internal state of an imv_swid_t connection instance + */ +struct imv_swid_state_t { + + /** + * imv_state_t interface + */ + imv_state_t interface; + + /** + * Set state of the handshake + * + * @param new_state the handshake state of IMV + */ + void (*set_handshake_state)(imv_swid_state_t *this, + imv_swid_handshake_state_t new_state); + + /** + * Get state of the handshake + * + * @return the handshake state of IMV + */ + imv_swid_handshake_state_t (*get_handshake_state)(imv_swid_state_t *this); + + /** + * Set the SWID request ID + * + * @param request_id SWID request ID to be set + */ + void (*set_request_id)(imv_swid_state_t *this, uint32_t request_id); + + /** + * Get the SWID request ID + * + * @return SWID request ID + */ + uint32_t (*get_request_id)(imv_swid_state_t *this); + + /** + * Set or extend the SWID Tag ID inventory in the state + * + * @param inventory SWID Tags ID inventory to be added + */ + void (*set_swid_inventory)(imv_swid_state_t *this, swid_inventory_t *inventory); + + /** + * Get the encoding of the complete SWID Tag ID inventory + * + * @return SWID Tags ID inventory as a JSON array + */ + json_object* (*get_swid_inventory)(imv_swid_state_t *this); + + /** + * Set the number of still missing SWID Tags or Tag IDs + * + * @param count Number of missing SWID Tags or Tag IDs + */ + void (*set_missing)(imv_swid_state_t *this, uint32_t count); + + /** + * Get the number of still missing SWID Tags or Tag IDs + * + * @result Number of missing SWID Tags or Tag IDs + */ + uint32_t (*get_missing)(imv_swid_state_t *this); + + /** + * Set [or with multiple attributes increment] SWID Tag [ID] counters + * + * @param tag_id_count Number of received SWID Tag IDs + * @param tag_count Number of received SWID Tags + */ + void (*set_count)(imv_swid_state_t *this, int tag_id_count, int tag_count); + + /** + * Set [or with multiple attributes increment] SWID Tag [ID] counters + * + * @param tag_id_count Number of received SWID Tag IDs + * @param tag_count Number of received SWID Tags + */ + void (*get_count)(imv_swid_state_t *this, int *tag_id_count, int *tag_count); +}; + +/** + * Create an imv_swid_state_t instance + * + * @param id connection ID + */ +imv_state_t* imv_swid_state_create(TNC_ConnectionID id); + +#endif /** IMV_SWID_STATE_H_ @}*/ diff --git a/src/libimcv/plugins/imv_test/Makefile.in b/src/libimcv/plugins/imv_test/Makefile.in index 5ac6a8f7b..66da75a1e 100644 --- a/src/libimcv/plugins/imv_test/Makefile.in +++ b/src/libimcv/plugins/imv_test/Makefile.in @@ -231,6 +231,7 @@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ EXEEXT = @EXEEXT@ FGREP = @FGREP@ +GEM = @GEM@ GENHTML = @GENHTML@ GPERF = @GPERF@ GPRBUILD = @GPRBUILD@ @@ -291,6 +292,7 @@ PYTHON_VERSION = @PYTHON_VERSION@ RANLIB = @RANLIB@ RTLIB = @RTLIB@ RUBY = @RUBY@ +RUBYGEMDIR = @RUBYGEMDIR@ RUBYINCLUDE = @RUBYINCLUDE@ RUBYLIB = @RUBYLIB@ SED = @SED@ @@ -356,6 +358,8 @@ ipsecdir = @ipsecdir@ ipsecgroup = @ipsecgroup@ ipseclibdir = @ipseclibdir@ ipsecuser = @ipsecuser@ +json_CFLAGS = @json_CFLAGS@ +json_LIBS = @json_LIBS@ libdir = @libdir@ libexecdir = @libexecdir@ linux_headers = @linux_headers@ @@ -403,6 +407,10 @@ strongswan_conf = @strongswan_conf@ strongswan_options = @strongswan_options@ swanctldir = @swanctldir@ sysconfdir = @sysconfdir@ +systemd_daemon_CFLAGS = @systemd_daemon_CFLAGS@ +systemd_daemon_LIBS = @systemd_daemon_LIBS@ +systemd_journal_CFLAGS = @systemd_journal_CFLAGS@ +systemd_journal_LIBS = @systemd_journal_LIBS@ systemdsystemunitdir = @systemdsystemunitdir@ t_plugins = @t_plugins@ target_alias = @target_alias@ diff --git a/src/libimcv/plugins/imv_test/imv_test_agent.c b/src/libimcv/plugins/imv_test/imv_test_agent.c index 42630003b..5e4b4866a 100644 --- a/src/libimcv/plugins/imv_test/imv_test_agent.c +++ b/src/libimcv/plugins/imv_test/imv_test_agent.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2013 Andreas Steffen + * Copyright (C) 2013-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -94,10 +94,14 @@ static TNC_Result receive_msg(private_imv_test_agent_t *this, imv_state_t *state int rounds; bool fatal_error = FALSE, received_command = FALSE, retry = FALSE; + /* generate an outgoing PA-TNC message - we might need it */ + out_msg = imv_msg_create_as_reply(in_msg); + /* parse received PA-TNC message and handle local and remote errors */ - result = in_msg->receive(in_msg, &fatal_error); + result = in_msg->receive(in_msg, out_msg, &fatal_error); if (result != TNC_RESULT_SUCCESS) { + out_msg->destroy(out_msg); return result; } @@ -172,14 +176,12 @@ static TNC_Result receive_msg(private_imv_test_agent_t *this, imv_state_t *state state->set_recommendation(state, TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, TNC_IMV_EVALUATION_RESULT_ERROR); - out_msg = imv_msg_create_as_reply(in_msg); result = out_msg->send_assessment(out_msg); - out_msg->destroy(out_msg); - if (result != TNC_RESULT_SUCCESS) + if (result == TNC_RESULT_SUCCESS) { - return result; + result = this->agent->provide_recommendation(this->agent, state); } - return this->agent->provide_recommendation(this->agent, state); + return result; } /* request a handshake retry ? */ @@ -195,7 +197,6 @@ static TNC_Result receive_msg(private_imv_test_agent_t *this, imv_state_t *state /* repeat the measurement ? */ if (test_state->another_round(test_state, in_msg->get_src_id(in_msg))) { - out_msg = imv_msg_create_as_reply(in_msg); attr = ita_attr_command_create("repeat"); out_msg->add_attribute(out_msg, attr); @@ -208,19 +209,20 @@ static TNC_Result receive_msg(private_imv_test_agent_t *this, imv_state_t *state if (received_command) { - out_msg = imv_msg_create_as_reply(in_msg); result = out_msg->send_assessment(out_msg); - out_msg->destroy(out_msg); - if (result != TNC_RESULT_SUCCESS) + if (result == TNC_RESULT_SUCCESS) { - return result; + result = this->agent->provide_recommendation(this->agent, state); } - return this->agent->provide_recommendation(this->agent, state); } else { - return TNC_RESULT_SUCCESS; + /* send PA-TNC message with the EXCL flag set */ + result = out_msg->send(out_msg, TRUE); } + out_msg->destroy(out_msg); + + return result; } METHOD(imv_agent_if_t, receive_message, TNC_Result, diff --git a/src/libimcv/plugins/imv_test/imv_test_state.c b/src/libimcv/plugins/imv_test/imv_test_state.c index 3564456a8..c20d00bd1 100644 --- a/src/libimcv/plugins/imv_test/imv_test_state.c +++ b/src/libimcv/plugins/imv_test/imv_test_state.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2011-2013 Andreas Steffen + * Copyright (C) 2011-2014 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * * This program is free software; you can redistribute it and/or modify it @@ -66,6 +66,11 @@ struct private_imv_test_state_t { imv_session_t *session; /** + * PA-TNC attribute segmentation contracts associated with TNCCS connection + */ + seg_contract_manager_t *contracts; + + /** * IMV action recommendation */ TNC_IMV_Action_Recommendation rec; @@ -162,6 +167,12 @@ METHOD(imv_state_t, get_session, imv_session_t*, return this->session; } +METHOD(imv_state_t, get_contracts, seg_contract_manager_t*, + private_imv_test_state_t *this) +{ + return this->contracts; +} + METHOD(imv_state_t, change_state, void, private_imv_test_state_t *this, TNC_ConnectionState new_state) { @@ -220,6 +231,7 @@ METHOD(imv_state_t, destroy, void, { DESTROY_IF(this->session); DESTROY_IF(this->reason_string); + this->contracts->destroy(this->contracts); this->imcs->destroy_function(this->imcs, free); free(this); } @@ -307,6 +319,7 @@ imv_state_t *imv_test_state_create(TNC_ConnectionID connection_id) .get_max_msg_len = _get_max_msg_len, .set_session = _set_session, .get_session = _get_session, + .get_contracts = _get_contracts, .change_state = _change_state, .get_recommendation = _get_recommendation, .set_recommendation = _set_recommendation, @@ -323,6 +336,7 @@ imv_state_t *imv_test_state_create(TNC_ConnectionID connection_id) .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION, .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW, .connection_id = connection_id, + .contracts = seg_contract_manager_create(), .imcs = linked_list_create(), ); diff --git a/src/libimcv/pts/components/ita/ita_comp_func_name.c b/src/libimcv/pts/components/ita/ita_comp_func_name.c new file mode 100644 index 000000000..a593281ba --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_func_name.c @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "ita_comp_func_name.h" + +char pts_ita_qualifier_flag_names[] = { 'K', 'S' }; + +ENUM_BEGIN(pts_ita_qualifier_type_names, PTS_ITA_QUALIFIER_TYPE_UNKNOWN, + PTS_ITA_QUALIFIER_TYPE_TNC, + "Unknown", + "Trusted Platform", + "Operating System", + "Graphical User Interface", + "Application", + "Networking", + "Library", + "TNC Defined Component" +); +ENUM_NEXT(pts_ita_qualifier_type_names, PTS_ITA_QUALIFIER_TYPE_ALL, + PTS_ITA_QUALIFIER_TYPE_ALL, + PTS_ITA_QUALIFIER_TYPE_TNC, + "All Matching Components" +); +ENUM_END(pts_ita_qualifier_type_names, PTS_ITA_QUALIFIER_TYPE_ALL); + +ENUM(pts_ita_comp_func_names, PTS_ITA_COMP_FUNC_NAME_IGNORE, + PTS_ITA_COMP_FUNC_NAME_IMA, + "Ignore", + "Trusted GRUB Boot Loader", + "Trusted Boot", + "Linux IMA" +); + diff --git a/src/libimcv/pts/components/ita/ita_comp_func_name.h b/src/libimcv/pts/components/ita/ita_comp_func_name.h new file mode 100644 index 000000000..eb2f363f3 --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_func_name.h @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_ita_comp_func_name pts_ita_comp_func_name + * @{ @ingroup pts + */ + +#ifndef PTS_ITA_COMP_FUNC_NAME_H_ +#define PTS_ITA_COMP_FUNC_NAME_H_ + +typedef enum pts_ita_qualifier_type_t pts_ita_qualifier_type_t; +typedef enum pts_ita_comp_func_name_t pts_ita_comp_func_name_t; + +#include <library.h> + +/** + * PTS Component Functional Name Qualifier Flags for the ITA namespace + */ +#define PTS_ITA_QUALIFIER_FLAG_KERNEL (1<<5) +#define PTS_ITA_QUALIFIER_FLAG_SUB (1<<4) + +extern char pts_ita_qualifier_flag_names[]; + +/** + * Size of the PTS Component Functional Name Qualifier Type field + */ +#define PTS_ITA_QUALIFIER_TYPE_SIZE 4 + +/** + * PTS Component Functional Name Qualifier Types for the ITA namespace + * equal to section 5.2 of PTS Protocol: Binding to TNC IF-M Specification + */ +enum pts_ita_qualifier_type_t { + /** Unknown */ + PTS_ITA_QUALIFIER_TYPE_UNKNOWN = 0x0, + /** Trusted Platform */ + PTS_ITA_QUALIFIER_TYPE_TRUSTED = 0x1, + /** Operating System */ + PTS_ITA_QUALIFIER_TYPE_OS = 0x2, + /** Graphical User Interface */ + PTS_ITA_QUALIFIER_TYPE_GUI = 0x3, + /** Application */ + PTS_ITA_QUALIFIER_TYPE_APP = 0x4, + /** Networking */ + PTS_ITA_QUALIFIER_TYPE_NET = 0x5, + /** Library */ + PTS_ITA_QUALIFIER_TYPE_LIB = 0x6, + /** TNC Defined Component */ + PTS_ITA_QUALIFIER_TYPE_TNC = 0x7, + /** All Matching Components */ + PTS_ITA_QUALIFIER_TYPE_ALL = 0xF, +}; + +extern enum_name_t *pts_ita_qualifier_type_names; + +/** + * PTS Component Functional Name Binary Enumeration for the ITA namespace + */ +enum pts_ita_comp_func_name_t { + /** Ignore */ + PTS_ITA_COMP_FUNC_NAME_IGNORE = 0x0000, + /** Trusted GRUB Boot Loader */ + PTS_ITA_COMP_FUNC_NAME_TGRUB = 0x0001, + /** Trusted Boot */ + PTS_ITA_COMP_FUNC_NAME_TBOOT = 0x0002, + /** Linux Integrity Measurement Architecture */ + PTS_ITA_COMP_FUNC_NAME_IMA = 0x0003, +}; + +extern enum_name_t *pts_ita_comp_func_names; + +#endif /** PTS_ITA_COMP_FUNC_NAME_H_ @}*/ diff --git a/src/libimcv/pts/components/ita/ita_comp_ima.c b/src/libimcv/pts/components/ita/ita_comp_ima.c new file mode 100644 index 000000000..3f92b04b1 --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_ima.c @@ -0,0 +1,914 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "ita_comp_ima.h" +#include "ita_comp_func_name.h" + +#include "imcv.h" +#include "pts/pts_pcr.h" +#include "pts/pts_ima_bios_list.h" +#include "pts/pts_ima_event_list.h" +#include "pts/components/pts_component.h" + +#include <utils/debug.h> +#include <crypto/hashers/hasher.h> +#include <pen/pen.h> + +#define SECURITY_DIR "/sys/kernel/security/" +#define IMA_BIOS_MEASUREMENTS SECURITY_DIR "tpm0/binary_bios_measurements" +#define IMA_RUNTIME_MEASUREMENTS SECURITY_DIR "ima/binary_runtime_measurements" +#define IMA_FILENAME_LEN_MAX 255 + +typedef struct pts_ita_comp_ima_t pts_ita_comp_ima_t; +typedef enum ima_state_t ima_state_t; + +enum ima_state_t { + IMA_STATE_INIT, + IMA_STATE_BIOS, + IMA_STATE_BOOT_AGGREGATE, + IMA_STATE_RUNTIME, + IMA_STATE_END +}; + +/** + * Private data of a pts_ita_comp_ima_t object. + * + */ +struct pts_ita_comp_ima_t { + + /** + * Public pts_component_t interface. + */ + pts_component_t public; + + /** + * Component Functional Name + */ + pts_comp_func_name_t *name; + + /** + * Sub-component depth + */ + uint32_t depth; + + /** + * PTS measurement database + */ + pts_database_t *pts_db; + + /** + * Primary key for AIK database entry + */ + int aik_id; + + /** + * Primary key for IMA BIOS Component Functional Name database entry + */ + int bios_cid; + + /** + * Primary key for IMA Runtime Component Functional Name database entry + */ + int ima_cid; + + /** + * Component is registering IMA BIOS measurements + */ + bool is_bios_registering; + + /** + * Component is registering IMA boot aggregate measurement + */ + bool is_ima_registering; + + /** + * Measurement sequence number + */ + int seq_no; + + /** + * Expected IMA BIOS measurement count + */ + int bios_count; + + /** + * IMA BIOS measurements + */ + pts_ima_bios_list_t *bios_list; + + /** + * IMA runtime file measurements + */ + pts_ima_event_list_t *ima_list; + + /** + * Whether to send pcr_before and pcr_after info + */ + bool pcr_info; + + /** + * Creation time of measurement + */ + time_t creation_time; + + /** + * IMA state machine + */ + ima_state_t state; + + /** + * Total number of component measurements + */ + int count; + + /** + * Number of successful component measurements + */ + int count_ok; + + /** + * Number of unknown component measurements + */ + int count_unknown; + + /** + * Number of differing component measurements + */ + int count_differ; + + /** + * Number of failed component measurements + */ + int count_failed; + + /** + * Reference count + */ + refcount_t ref; + +}; + +/** + * Extend measurement into PCR and create evidence + */ +static pts_comp_evidence_t* extend_pcr(pts_ita_comp_ima_t* this, + uint8_t qualifier, pts_pcr_t *pcrs, + uint32_t pcr, chunk_t measurement) +{ + size_t pcr_len; + pts_pcr_transform_t pcr_transform; + pts_meas_algorithms_t hash_algo; + pts_comp_func_name_t *name; + pts_comp_evidence_t *evidence; + chunk_t pcr_before = chunk_empty, pcr_after = chunk_empty; + + hash_algo = PTS_MEAS_ALGO_SHA1; + pcr_len = HASH_SIZE_SHA1; + pcr_transform = pts_meas_algo_to_pcr_transform(hash_algo, pcr_len); + + if (this->pcr_info) + { + pcr_before = chunk_clone(pcrs->get(pcrs, pcr)); + } + pcr_after = pcrs->extend(pcrs, pcr, measurement); + if (!pcr_after.ptr) + { + free(pcr_before.ptr); + return NULL; + } + name = this->name->clone(this->name); + name->set_qualifier(name, qualifier); + evidence = pts_comp_evidence_create(name, this->depth, pcr, hash_algo, + pcr_transform, this->creation_time, measurement); + if (this->pcr_info) + { + pcr_after =chunk_clone(pcrs->get(pcrs, pcr)); + evidence->set_pcr_info(evidence, pcr_before, pcr_after); + } + return evidence; +} + +/** + * Generate an IMA or IMA-NG hash from an event digest and event name + * + * @param digest event digest + * @param ima_algo hash algorithm string ("sha1:", "sha256:", etc.) + * @param ima_name event name + * @param little_endian endianness of client platform + * @param algo hash algorithm used by TPM + * @param hash_buf hash value to be compared with TPM measurement + */ +static bool ima_hash(chunk_t digest, char *ima_algo, char *ima_name, + bool little_endian, pts_meas_algorithms_t algo, + char *hash_buf) +{ + hash_algorithm_t hash_alg; + hasher_t *hasher; + bool success; + + hash_alg = pts_meas_algo_to_hash(algo); + hasher = lib->crypto->create_hasher(lib->crypto, hash_alg); + if (!hasher) + { + DBG1(DBG_PTS, "%N hasher could not be created", + hash_algorithm_short_names, hash_alg); + return FALSE; + } + + if (ima_algo) + { + uint32_t d_len, n_len; + chunk_t algo_name, event_name, digest_len, name_len; + + /* IMA-NG hash */ + algo_name = chunk_create(ima_algo, strlen(ima_algo) + 1); + event_name = chunk_create(ima_name, strlen(ima_name) + 1); + + d_len = algo_name.len + digest.len; + digest_len = chunk_create((uint8_t*)&d_len, sizeof(d_len)); + /* TODO handle endianness of both client and server platforms */ + + n_len = event_name.len; + name_len = chunk_create((uint8_t*)&n_len, sizeof(n_len)); + /* TODO handle endianness of both client and server platforms */ + + success = hasher->get_hash(hasher, digest_len, NULL) && + hasher->get_hash(hasher, algo_name, NULL) && + hasher->get_hash(hasher, digest, NULL) && + hasher->get_hash(hasher, name_len, NULL) && + hasher->get_hash(hasher, event_name, hash_buf); + } + else + { + u_char filename_buffer[IMA_FILENAME_LEN_MAX + 1]; + chunk_t file_name; + + /* IMA legacy hash */ + memset(filename_buffer, 0, sizeof(filename_buffer)); + strncpy(filename_buffer, ima_name, IMA_FILENAME_LEN_MAX); + file_name = chunk_create (filename_buffer, sizeof(filename_buffer)); + + success = hasher->get_hash(hasher, digest, NULL) && + hasher->get_hash(hasher, file_name, hash_buf); + } + hasher->destroy(hasher); + + return success; +} + +/** + * Compute and check boot aggregate value by hashing PCR0 to PCR7 + */ +static bool check_boot_aggregate(pts_pcr_t *pcrs, chunk_t measurement, + char *algo) +{ + u_char pcr_buffer[HASH_SIZE_SHA1]; + chunk_t boot_aggregate; + hasher_t *hasher; + uint32_t i; + bool success, pcr_ok = TRUE; + + hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1); + if (!hasher) + { + DBG1(DBG_PTS, "%N hasher could not be created", + hash_algorithm_short_names, HASH_SHA1); + return FALSE; + } + for (i = 0; i < 8 && pcr_ok; i++) + { + pcr_ok = hasher->get_hash(hasher, pcrs->get(pcrs, i), NULL); + } + if (pcr_ok) + { + pcr_ok = hasher->get_hash(hasher, chunk_empty, pcr_buffer); + } + hasher->destroy(hasher); + + if (pcr_ok) + { + boot_aggregate = chunk_create(pcr_buffer, sizeof(pcr_buffer)); + + /* TODO handle endianness of client platform */ + pcr_ok = ima_hash(boot_aggregate, algo, "boot_aggregate", + TRUE, PTS_MEAS_ALGO_SHA1, pcr_buffer); + } + if (pcr_ok) + { + success = chunk_equals(boot_aggregate, measurement); + DBG1(DBG_PTS, "boot aggregate value is %scorrect", + success ? "":"in"); + return success; + } + else + { + DBG1(DBG_PTS, "failed to compute boot aggregate value"); + return FALSE; + } +} + +METHOD(pts_component_t, get_comp_func_name, pts_comp_func_name_t*, + pts_ita_comp_ima_t *this) +{ + return this->name; +} + +METHOD(pts_component_t, get_evidence_flags, uint8_t, + pts_ita_comp_ima_t *this) +{ + return PTS_REQ_FUNC_COMP_EVID_PCR; +} + +METHOD(pts_component_t, get_depth, uint32_t, + pts_ita_comp_ima_t *this) +{ + return this->depth; +} + +METHOD(pts_component_t, measure, status_t, + pts_ita_comp_ima_t *this, uint8_t qualifier, pts_t *pts, + pts_comp_evidence_t **evidence) +{ + pts_pcr_t *pcrs; + pts_comp_evidence_t *evid = NULL; + size_t algo_len, name_len; + chunk_t measurement; + char *uri, *algo, *name; + uint32_t pcr; + status_t status; + + pcrs = pts->get_pcrs(pts); + + if (qualifier == (PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED)) + { + switch (this->state) + { + case IMA_STATE_INIT: + this->bios_list = pts_ima_bios_list_create( + IMA_BIOS_MEASUREMENTS); + if (!this->bios_list) + { + return FAILED; + } + this->creation_time = this->bios_list->get_time(this->bios_list); + this->bios_count = this->bios_list->get_count(this->bios_list); + this->state = IMA_STATE_BIOS; + /* fall through to next state */ + case IMA_STATE_BIOS: + status = this->bios_list->get_next(this->bios_list, &pcr, + &measurement); + if (status != SUCCESS) + { + DBG1(DBG_PTS, "could not retrieve bios measurement entry"); + return status; + } + evid = extend_pcr(this, qualifier, pcrs, pcr, measurement); + + this->state = this->bios_list->get_count(this->bios_list) ? + IMA_STATE_BIOS : IMA_STATE_INIT; + break; + default: + return FAILED; + } + } + else if (qualifier == (PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_OS)) + { + switch (this->state) + { + case IMA_STATE_INIT: + this->ima_list = pts_ima_event_list_create( + IMA_RUNTIME_MEASUREMENTS); + if (!this->ima_list) + { + return FAILED; + } + this->creation_time = this->ima_list->get_time(this->ima_list); + this->count = this->ima_list->get_count(this->ima_list); + this->state = IMA_STATE_BOOT_AGGREGATE; + /* fall through to next state */ + case IMA_STATE_BOOT_AGGREGATE: + case IMA_STATE_RUNTIME: + status = this->ima_list->get_next(this->ima_list, &measurement, + &algo, &name); + if (status != SUCCESS) + { + DBG1(DBG_PTS, "could not retrieve ima measurement entry"); + return status; + } + if (this->state == IMA_STATE_BOOT_AGGREGATE && this->bios_count) + { + if (!check_boot_aggregate(pcrs, measurement, algo)) + { + return FAILED; + } + } + evid = extend_pcr(this, qualifier, pcrs, IMA_PCR, + measurement); + if (evid) + { + if (algo) + { + algo_len = strlen(algo); + name_len = strlen(name); + uri = malloc(algo_len + name_len + 1); + memcpy(uri, algo, algo_len); + strcpy(uri + algo_len, name); + } + else + { + uri = strdup(name); + } + evid->set_validation(evid, PTS_COMP_EVID_VALIDATION_PASSED, + uri); + free(uri); + } + free(name); + free(algo); + + this->state = this->ima_list->get_count(this->ima_list) ? + IMA_STATE_RUNTIME : IMA_STATE_END; + break; + default: + return FAILED; + } + } + else + { + DBG1(DBG_PTS, "unsupported functional component name qualifier"); + return FAILED; + } + + *evidence = evid; + if (!evid) + { + return FAILED; + } + + return (this->state == IMA_STATE_INIT || this->state == IMA_STATE_END) ? + SUCCESS : NEED_MORE; +} + +/** + * Parse a validation URI of the form <hash algorithm>:<event name> + * into its components + */ +static pts_meas_algorithms_t parse_validation_uri(pts_comp_evidence_t *evidence, + char **ima_name, char **ima_algo, char *algo_buf) +{ + pts_meas_algorithms_t hash_algo; + char *uri, *pos, *algo, *name; + + evidence->get_validation(evidence, &uri); + + /* IMA-NG format? */ + pos = strchr(uri, ':'); + if (pos && (pos - uri + 1) < IMA_ALGO_LEN_MAX) + { + memset(algo_buf, '\0', IMA_ALGO_LEN_MAX); + memcpy(algo_buf, uri, pos - uri + 1); + algo = algo_buf; + name = pos + 1; + + if (streq(algo, "sha1:") || streq(algo, ":")) + { + hash_algo = PTS_MEAS_ALGO_SHA1; + } + else if (streq(algo, "sha256:")) + { + hash_algo = PTS_MEAS_ALGO_SHA256; + } + else if (streq(algo, "sha384:")) + { + hash_algo = PTS_MEAS_ALGO_SHA384; + } + else + { + hash_algo = PTS_MEAS_ALGO_NONE; + } + } + else + { + algo = NULL; + name = uri; + hash_algo = PTS_MEAS_ALGO_SHA1; + } + + if (ima_name) + { + *ima_name = name; + } + if (ima_algo) + { + *ima_algo = algo; + } + + return hash_algo; +} + +METHOD(pts_component_t, verify, status_t, + pts_ita_comp_ima_t *this, uint8_t qualifier, pts_t *pts, + pts_comp_evidence_t *evidence) +{ + bool has_pcr_info; + uint32_t pcr; + pts_meas_algorithms_t algo; + pts_pcr_transform_t transform; + pts_pcr_t *pcrs; + time_t creation_time; + chunk_t measurement, pcr_before, pcr_after; + status_t status = NOT_FOUND; + + this->aik_id = pts->get_aik_id(pts); + pcrs = pts->get_pcrs(pts); + measurement = evidence->get_measurement(evidence, &pcr, &algo, &transform, + &creation_time); + + if (qualifier == (PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED)) + { + switch (this->state) + { + case IMA_STATE_INIT: + this->name->set_qualifier(this->name, qualifier); + status = this->pts_db->get_comp_measurement_count(this->pts_db, + this->name, this->aik_id, algo, + &this->bios_cid, &this->bios_count); + this->name->set_qualifier(this->name, PTS_QUALIFIER_UNKNOWN); + if (status != SUCCESS) + { + return status; + } + + if (this->bios_count) + { + DBG1(DBG_PTS, "checking %d BIOS evidence measurements", + this->bios_count); + } + else + { + DBG1(DBG_PTS, "registering BIOS evidence measurements"); + this->is_bios_registering = TRUE; + } + + this->state = IMA_STATE_BIOS; + /* fall through to next state */ + case IMA_STATE_BIOS: + if (this->is_bios_registering) + { + status = this->pts_db->insert_comp_measurement(this->pts_db, + measurement, this->bios_cid, this->aik_id, + ++this->seq_no, pcr, algo); + if (status != SUCCESS) + { + return status; + } + this->bios_count = this->seq_no + 1; + } + else + { + status = this->pts_db->check_comp_measurement(this->pts_db, + measurement, this->bios_cid, this->aik_id, + ++this->seq_no, pcr, algo); + if (status == FAILED) + { + return status; + } + } + break; + default: + return FAILED; + } + } + else if (qualifier == (PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_OS)) + { + int ima_count; + char *ima_algo, *ima_name; + char algo_buf[IMA_ALGO_LEN_MAX]; + pts_meas_algorithms_t hash_algo; + + hash_algo = parse_validation_uri(evidence, &ima_name, &ima_algo, + algo_buf); + + switch (this->state) + { + case IMA_STATE_BIOS: + this->state = IMA_STATE_RUNTIME; + + if (!streq(ima_name, "boot_aggregate")) + { + DBG1(DBG_PTS, "ima: name must be 'boot_aggregate' " + "but is '%s'", ima_name); + return FAILED; + } + if (hash_algo != PTS_MEAS_ALGO_SHA1) + { + DBG1(DBG_PTS, "ima: boot_aggregate algorithm must be %N " + "but is %N", + pts_meas_algorithm_names, PTS_MEAS_ALGO_SHA1, + pts_meas_algorithm_names, hash_algo); + return FAILED; + } + if (!check_boot_aggregate(pcrs, measurement, ima_algo)) + { + return FAILED; + } + this->state = IMA_STATE_INIT; + /* fall through to next state */ + case IMA_STATE_INIT: + this->name->set_qualifier(this->name, qualifier); + status = this->pts_db->get_comp_measurement_count(this->pts_db, + this->name, this->aik_id, algo, + &this->ima_cid, &ima_count); + this->name->set_qualifier(this->name, PTS_QUALIFIER_UNKNOWN); + if (status != SUCCESS) + { + return status; + } + + if (ima_count) + { + DBG1(DBG_PTS, "checking boot aggregate evidence " + "measurement"); + status = this->pts_db->check_comp_measurement(this->pts_db, + measurement, this->ima_cid, + this->aik_id, 1, pcr, algo); + } + else + { + DBG1(DBG_PTS, "registering boot aggregate evidence " + "measurement"); + this->is_ima_registering = TRUE; + status = this->pts_db->insert_comp_measurement(this->pts_db, + measurement, this->ima_cid, + this->aik_id, 1, pcr, algo); + } + this->state = IMA_STATE_RUNTIME; + + if (status != SUCCESS) + { + return status; + } + break; + case IMA_STATE_RUNTIME: + { + uint8_t hash_buf[HASH_SIZE_SHA512]; + chunk_t digest, hash; + enumerator_t *e; + + this->count++; + if (evidence->get_validation(evidence, NULL) != + PTS_COMP_EVID_VALIDATION_PASSED) + { + DBG1(DBG_PTS, "evidence validation failed"); + this->count_failed++; + return FAILED; + } + hash = chunk_create(hash_buf, pts_meas_algo_hash_size(algo)); + + e = this->pts_db->create_file_meas_enumerator(this->pts_db, + pts->get_platform_id(pts), + hash_algo, ima_name); + if (e) + { + while (e->enumerate(e, &digest)) + { + if (!ima_hash(digest, ima_algo, ima_name, + FALSE, algo, hash_buf)) + { + status = FAILED; + break; + } + if (chunk_equals(measurement, hash)) + { + status = SUCCESS; + break; + } + else + { + status = VERIFY_ERROR; + } + } + e->destroy(e); + } + else + { + status = FAILED; + } + + switch (status) + { + case SUCCESS: + DBG3(DBG_PTS, "%#B for '%s' is ok", + &measurement, ima_name); + this->count_ok++; + break; + case NOT_FOUND: + DBG2(DBG_PTS, "%#B for '%s' not found", + &measurement, ima_name); + this->count_unknown++; + break; + case VERIFY_ERROR: + DBG1(DBG_PTS, "%#B for '%s' differs", + &measurement, ima_name); + this->count_differ++; + break; + case FAILED: + default: + DBG1(DBG_PTS, "%#B for '%s' failed", + &measurement, ima_name); + this->count_failed++; + } + break; + } + default: + return FAILED; + } + } + else + { + DBG1(DBG_PTS, "unsupported functional component name qualifier"); + return FAILED; + } + + has_pcr_info = evidence->get_pcr_info(evidence, &pcr_before, &pcr_after); + if (has_pcr_info) + { + if (!chunk_equals(pcr_before, pcrs->get(pcrs, pcr))) + { + DBG1(DBG_PTS, "PCR %2u: pcr_before is not equal to register value", + pcr); + } + if (pcrs->set(pcrs, pcr, pcr_after)) + { + return status; + } + } + else + { + pcr_after = pcrs->extend(pcrs, pcr, measurement); + if (pcr_after.ptr) + { + return status; + } + } + return FAILED; +} + +METHOD(pts_component_t, finalize, bool, + pts_ita_comp_ima_t *this, uint8_t qualifier, bio_writer_t *result) +{ + char result_buf[BUF_LEN]; + char *pos = result_buf; + size_t len = BUF_LEN; + int written; + bool success = TRUE; + + this->name->set_qualifier(this->name, qualifier); + + if (qualifier == (PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED)) + { + /* finalize BIOS measurements */ + if (this->is_bios_registering) + { + /* close registration */ + this->is_bios_registering = FALSE; + + snprintf(pos, len, "registered %d BIOS evidence measurements", + this->seq_no); + } + else if (this->seq_no < this->bios_count) + { + snprintf(pos, len, "%d of %d BIOS evidence measurements missing", + this->bios_count - this->seq_no, this->bios_count); + success = FALSE; + } + else + { + snprintf(pos, len, "%d BIOS evidence measurements are ok", + this->bios_count); + } + } + else if (qualifier == (PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_OS)) + { + /* finalize IMA file measurements */ + if (this->is_ima_registering) + { + /* close registration */ + this->is_ima_registering = FALSE; + + written = snprintf(pos, len, "registered IMA boot aggregate " + "evidence measurement; "); + pos += written; + len -= written; + } + if (this->count) + { + snprintf(pos, len, "processed %d IMA file evidence measurements: " + "%d ok, %d unknown, %d differ, %d failed", + this->count, this->count_ok, this->count_unknown, + this->count_differ, this->count_failed); + } + else + { + snprintf(pos, len, "no IMA file evidence measurements"); + success = FALSE; + } + } + else + { + snprintf(pos, len, "unsupported functional component name qualifier"); + success = FALSE; + } + this->name->set_qualifier(this->name, PTS_QUALIFIER_UNKNOWN); + + DBG1(DBG_PTS, "%s", result_buf); + result->write_data(result, chunk_from_str(result_buf)); + + return success; +} + +METHOD(pts_component_t, get_ref, pts_component_t*, + pts_ita_comp_ima_t *this) +{ + ref_get(&this->ref); + return &this->public; +} + +METHOD(pts_component_t, destroy, void, + pts_ita_comp_ima_t *this) +{ + int count; + + if (ref_put(&this->ref)) + { + + if (this->is_bios_registering) + { + count = this->pts_db->delete_comp_measurements(this->pts_db, + this->bios_cid, this->aik_id); + DBG1(DBG_PTS, "deleted %d registered BIOS evidence measurements", + count); + } + if (this->is_ima_registering) + { + count = this->pts_db->delete_comp_measurements(this->pts_db, + this->ima_cid, this->aik_id); + DBG1(DBG_PTS, "deleted registered boot aggregate evidence " + "measurement"); + } + DESTROY_IF(this->bios_list); + DESTROY_IF(this->ima_list); + this->name->destroy(this->name); + + free(this); + } +} + +/** + * See header + */ +pts_component_t *pts_ita_comp_ima_create(uint32_t depth, + pts_database_t *pts_db) +{ + pts_ita_comp_ima_t *this; + + INIT(this, + .public = { + .get_comp_func_name = _get_comp_func_name, + .get_evidence_flags = _get_evidence_flags, + .get_depth = _get_depth, + .measure = _measure, + .verify = _verify, + .finalize = _finalize, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .name = pts_comp_func_name_create(PEN_ITA, PTS_ITA_COMP_FUNC_NAME_IMA, + PTS_QUALIFIER_UNKNOWN), + .depth = depth, + .pts_db = pts_db, + .pcr_info = lib->settings->get_bool(lib->settings, + "%s.plugins.imc-attestation.pcr_info", FALSE, lib->ns), + .ref = 1, + ); + + return &this->public; +} + diff --git a/src/libimcv/pts/components/ita/ita_comp_ima.h b/src/libimcv/pts/components/ita/ita_comp_ima.h new file mode 100644 index 000000000..546d0a4b2 --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_ima.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2011-2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_ita_comp_func_name pts_ita_comp_func_name + * @{ @ingroup pts + */ + +#ifndef PTS_ITA_COMP_IMA_H_ +#define PTS_ITA_COMP_IMA_H_ + +#include "pts/components/pts_component.h" + +/** + * Create a PTS ITS Functional Component object + * + * @param depth Sub-component depth + * @param pts_db PTS measurement database + */ +pts_component_t* pts_ita_comp_ima_create(u_int32_t depth, + pts_database_t *pts_db); + +#endif /** PTS_ITA_COMP_IMA_H_ @}*/ diff --git a/src/libimcv/pts/components/ita/ita_comp_tboot.c b/src/libimcv/pts/components/ita/ita_comp_tboot.c new file mode 100644 index 000000000..273c18f31 --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_tboot.c @@ -0,0 +1,362 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "ita_comp_tboot.h" +#include "ita_comp_func_name.h" + +#include "imcv.h" +#include "pts/components/pts_component.h" + +#include <utils/debug.h> +#include <pen/pen.h> + +typedef struct pts_ita_comp_tboot_t pts_ita_comp_tboot_t; + +/** + * Private data of a pts_ita_comp_tboot_t object. + * + */ +struct pts_ita_comp_tboot_t { + + /** + * Public pts_component_t interface. + */ + pts_component_t public; + + /** + * Component Functional Name + */ + pts_comp_func_name_t *name; + + /** + * Sub-component depth + */ + u_int32_t depth; + + /** + * PTS measurement database + */ + pts_database_t *pts_db; + + /** + * Primary key for AIK database entry + */ + int aik_id; + + /** + * Primary key for Component Functional Name database entry + */ + int cid; + + /** + * Primary key for AIK database entry + */ + int kid; + + /** + * Component is registering measurements + */ + bool is_registering; + + /** + * Time of TBOOT measurement + */ + time_t measurement_time; + + /** + * Expected measurement count + */ + int count; + + /** + * Measurement sequence number + */ + int seq_no; + + /** + * Reference count + */ + refcount_t ref; + +}; + +METHOD(pts_component_t, get_comp_func_name, pts_comp_func_name_t*, + pts_ita_comp_tboot_t *this) +{ + return this->name; +} + +METHOD(pts_component_t, get_evidence_flags, u_int8_t, + pts_ita_comp_tboot_t *this) +{ + return PTS_REQ_FUNC_COMP_EVID_PCR; +} + +METHOD(pts_component_t, get_depth, u_int32_t, + pts_ita_comp_tboot_t *this) +{ + return this->depth; +} + +METHOD(pts_component_t, measure, status_t, + pts_ita_comp_tboot_t *this, u_int8_t qualifier, pts_t *pts, + pts_comp_evidence_t **evidence) + +{ + size_t pcr_len; + pts_pcr_t *pcrs; + pts_pcr_transform_t pcr_transform; + pts_meas_algorithms_t hash_algo; + pts_comp_evidence_t *evid; + char *meas_hex, *pcr_before_hex, *pcr_after_hex; + chunk_t measurement, pcr_before, pcr_after; + u_int32_t extended_pcr; + + switch (this->seq_no++) + { + case 0: + /* dummy data since currently the TBOOT log is not retrieved */ + time(&this->measurement_time); + meas_hex = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.pcr17_meas", NULL, lib->ns); + pcr_before_hex = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.pcr17_before", NULL, lib->ns); + pcr_after_hex = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.pcr17_after", NULL, lib->ns); + extended_pcr = PCR_TBOOT_POLICY; + break; + case 1: + /* dummy data since currently the TBOOT log is not retrieved */ + meas_hex = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.pcr18_meas", NULL, lib->ns); + pcr_before_hex = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.pcr18_before", NULL, lib->ns); + pcr_after_hex = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.pcr18_after", NULL, lib->ns); + extended_pcr = PCR_TBOOT_MLE; + break; + default: + return FAILED; + } + + if (meas_hex == NULL || pcr_before_hex == NULL || pcr_after_hex == NULL) + { + return FAILED; + } + + hash_algo = PTS_MEAS_ALGO_SHA1; + pcr_len = HASH_SIZE_SHA1; + pcr_transform = pts_meas_algo_to_pcr_transform(hash_algo, pcr_len); + + /* get and check the measurement data */ + measurement = chunk_from_hex( + chunk_create(meas_hex, strlen(meas_hex)), NULL); + pcr_before = chunk_from_hex( + chunk_create(pcr_before_hex, strlen(pcr_before_hex)), NULL); + pcr_after = chunk_from_hex( + chunk_create(pcr_after_hex, strlen(pcr_after_hex)), NULL); + if (pcr_before.len != pcr_len || pcr_after.len != pcr_len || + measurement.len != pcr_len) + { + DBG1(DBG_PTS, "TBOOT measurement or PCR data have the wrong size"); + free(measurement.ptr); + free(pcr_before.ptr); + free(pcr_after.ptr); + return FAILED; + } + + pcrs = pts->get_pcrs(pts); + pcrs->set(pcrs, extended_pcr, pcr_after); + evid = *evidence = pts_comp_evidence_create(this->name->clone(this->name), + this->depth, extended_pcr, hash_algo, pcr_transform, + this->measurement_time, measurement); + evid->set_pcr_info(evid, pcr_before, pcr_after); + + return (this->seq_no < 2) ? NEED_MORE : SUCCESS; +} + +METHOD(pts_component_t, verify, status_t, + pts_ita_comp_tboot_t *this, u_int8_t qualifier,pts_t *pts, + pts_comp_evidence_t *evidence) +{ + bool has_pcr_info; + u_int32_t extended_pcr, vid, name; + enum_name_t *names; + pts_meas_algorithms_t algo; + pts_pcr_transform_t transform; + pts_pcr_t *pcrs; + time_t measurement_time; + chunk_t measurement, pcr_before, pcr_after; + status_t status; + + this->aik_id = pts->get_aik_id(pts); + pcrs = pts->get_pcrs(pts); + measurement = evidence->get_measurement(evidence, &extended_pcr, + &algo, &transform, &measurement_time); + + status = this->pts_db->get_comp_measurement_count(this->pts_db, + this->name, this->aik_id, algo, + &this->cid, &this->count); + if (status != SUCCESS) + { + return status; + } + vid = this->name->get_vendor_id(this->name); + name = this->name->get_name(this->name); + names = imcv_pts_components->get_comp_func_names(imcv_pts_components, vid); + + if (this->count) + { + DBG1(DBG_PTS, "checking %d %N '%N' functional component evidence " + "measurements", this->count, pen_names, vid, names, name); + } + else + { + DBG1(DBG_PTS, "registering %N '%N' functional component evidence " + "measurements", pen_names, vid, names, name); + this->is_registering = TRUE; + } + + if (this->is_registering) + { + status = this->pts_db->insert_comp_measurement(this->pts_db, + measurement, this->cid, this->aik_id, + ++this->seq_no, extended_pcr, algo); + if (status != SUCCESS) + { + return status; + } + this->count = this->seq_no + 1; + } + else + { + status = this->pts_db->check_comp_measurement(this->pts_db, + measurement, this->cid, this->kid, + ++this->seq_no, extended_pcr, algo); + if (status != SUCCESS) + { + return status; + } + } + + has_pcr_info = evidence->get_pcr_info(evidence, &pcr_before, &pcr_after); + if (has_pcr_info) + { + if (!chunk_equals(pcr_before, pcrs->get(pcrs, extended_pcr))) + { + DBG1(DBG_PTS, "PCR %2u: pcr_before is not equal to register value", + extended_pcr); + } + if (pcrs->set(pcrs, extended_pcr, pcr_after)) + { + return SUCCESS; + } + } + + return SUCCESS; +} + +METHOD(pts_component_t, finalize, bool, + pts_ita_comp_tboot_t *this, u_int8_t qualifier, bio_writer_t *result) +{ + char result_buf[BUF_LEN]; + + if (this->is_registering) + { + /* close registration */ + this->is_registering = FALSE; + + snprintf(result_buf, BUF_LEN, "registered %d evidence measurements", + this->seq_no); + } + else if (this->seq_no < this->count) + { + snprintf(result_buf, BUF_LEN, "%d of %d evidence measurements " + "missing", this->count - this->seq_no, this->count); + return FALSE; + } + else + { + snprintf(result_buf, BUF_LEN, "%d evidence measurements are ok", + this->count); + } + DBG1(DBG_PTS, "%s", result_buf); + result->write_data(result, chunk_from_str(result_buf)); + + return TRUE; +} + +METHOD(pts_component_t, get_ref, pts_component_t*, + pts_ita_comp_tboot_t *this) +{ + ref_get(&this->ref); + return &this->public; +} + +METHOD(pts_component_t, destroy, void, + pts_ita_comp_tboot_t *this) +{ + int count; + u_int32_t vid, name; + enum_name_t *names; + + if (ref_put(&this->ref)) + { + if (this->is_registering) + { + count = this->pts_db->delete_comp_measurements(this->pts_db, + this->cid, this->aik_id); + vid = this->name->get_vendor_id(this->name); + name = this->name->get_name(this->name); + names = imcv_pts_components->get_comp_func_names(imcv_pts_components, + vid); + DBG1(DBG_PTS, "deleted %d registered %N '%N' functional component " + "evidence measurements", count, pen_names, vid, names, name); + } + this->name->destroy(this->name); + free(this); + } +} + +/** + * See header + */ +pts_component_t *pts_ita_comp_tboot_create(u_int32_t depth, + pts_database_t *pts_db) +{ + pts_ita_comp_tboot_t *this; + + INIT(this, + .public = { + .get_comp_func_name = _get_comp_func_name, + .get_evidence_flags = _get_evidence_flags, + .get_depth = _get_depth, + .measure = _measure, + .verify = _verify, + .finalize = _finalize, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .name = pts_comp_func_name_create(PEN_ITA, PTS_ITA_COMP_FUNC_NAME_TBOOT, + PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED), + .depth = depth, + .pts_db = pts_db, + .ref = 1, + ); + + return &this->public; +} + diff --git a/src/libimcv/pts/components/ita/ita_comp_tboot.h b/src/libimcv/pts/components/ita/ita_comp_tboot.h new file mode 100644 index 000000000..1e1a14831 --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_tboot.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_ita_comp_func_name pts_ita_comp_func_name + * @{ @ingroup pts + */ + +#ifndef PTS_ITA_COMP_TBOOT_H_ +#define PTS_ITA_COMP_TBOOT_H_ + +#include "pts/components/pts_component.h" + +/** + * Create a PTS ITS Functional Component object + * + * @param depth Sub-component depth + * @param pts_db PTS measurement database + */ +pts_component_t* pts_ita_comp_tboot_create(u_int32_t depth, + pts_database_t *pts_db); + +#endif /** PTS_ITA_COMP_TBOOT_H_ @}*/ diff --git a/src/libimcv/pts/components/ita/ita_comp_tgrub.c b/src/libimcv/pts/components/ita/ita_comp_tgrub.c new file mode 100644 index 000000000..097e4c89c --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_tgrub.c @@ -0,0 +1,208 @@ +/* + * Copyright (C) 2011-2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "ita_comp_tgrub.h" +#include "ita_comp_func_name.h" + +#include "pts/components/pts_component.h" + +#include <utils/debug.h> +#include <pen/pen.h> + +typedef struct pts_ita_comp_tgrub_t pts_ita_comp_tgrub_t; + +/** + * Private data of a pts_ita_comp_tgrub_t object. + * + */ +struct pts_ita_comp_tgrub_t { + + /** + * Public pts_component_t interface. + */ + pts_component_t public; + + /** + * Component Functional Name + */ + pts_comp_func_name_t *name; + + /** + * Sub-component depth + */ + u_int32_t depth; + + /** + * PTS measurement database + */ + pts_database_t *pts_db; + + /** + * Reference count + */ + refcount_t ref; + +}; + +METHOD(pts_component_t, get_comp_func_name, pts_comp_func_name_t*, + pts_ita_comp_tgrub_t *this) +{ + return this->name; +} + +METHOD(pts_component_t, get_evidence_flags, u_int8_t, + pts_ita_comp_tgrub_t *this) +{ + return PTS_REQ_FUNC_COMP_EVID_PCR; +} + +METHOD(pts_component_t, get_depth, u_int32_t, + pts_ita_comp_tgrub_t *this) +{ + return this->depth; +} + +METHOD(pts_component_t, measure, status_t, + pts_ita_comp_tgrub_t *this, u_int8_t qualifier, pts_t *pts, + pts_comp_evidence_t **evidence) +{ + size_t pcr_len; + pts_pcr_transform_t pcr_transform; + pts_meas_algorithms_t hash_algo; + pts_comp_evidence_t *evid; + u_int32_t extended_pcr; + time_t measurement_time; + chunk_t measurement, pcr_before, pcr_after; + + /* Provisional implementation for TGRUB */ + extended_pcr = PCR_DEBUG; + time(&measurement_time); + + if (!pts->read_pcr(pts, extended_pcr, &pcr_after)) + { + DBG1(DBG_PTS, "error occurred while reading PCR: %d", extended_pcr); + return FAILED; + } + + hash_algo = PTS_MEAS_ALGO_SHA1; + pcr_len = HASH_SIZE_SHA1; + pcr_transform = pts_meas_algo_to_pcr_transform(hash_algo, pcr_len); + + measurement = chunk_alloc(pcr_len); + memset(measurement.ptr, 0x00, measurement.len); + + pcr_before = chunk_alloc(pcr_len); + memset(pcr_before.ptr, 0x00, pcr_before.len); + + evid = *evidence = pts_comp_evidence_create(this->name->clone(this->name), + this->depth, extended_pcr, + hash_algo, pcr_transform, + measurement_time, measurement); + evid->set_pcr_info(evid, pcr_before, pcr_after); + + return SUCCESS; +} + +METHOD(pts_component_t, verify, status_t, + pts_ita_comp_tgrub_t *this, u_int8_t qualifier, pts_t *pts, + pts_comp_evidence_t *evidence) +{ + bool has_pcr_info; + u_int32_t extended_pcr; + pts_meas_algorithms_t algo; + pts_pcr_transform_t transform; + pts_pcr_t *pcrs; + time_t measurement_time; + chunk_t pcr_before, pcr_after; + chunk_t measurement __attribute__((unused)); + + pcrs = pts->get_pcrs(pts); + measurement = evidence->get_measurement(evidence, &extended_pcr, + &algo, &transform, &measurement_time); + if (extended_pcr != PCR_DEBUG) + { + return FAILED; + } + + /* TODO check measurement in database */ + + has_pcr_info = evidence->get_pcr_info(evidence, &pcr_before, &pcr_after); + if (has_pcr_info) + { + if (!chunk_equals(pcr_before, pcrs->get(pcrs, extended_pcr))) + { + DBG1(DBG_PTS, "PCR %2u: pcr_before is not equal to pcr value"); + } + if (pcrs->set(pcrs, extended_pcr, pcr_after)) + { + return SUCCESS; + } + } + + return SUCCESS; +} + +METHOD(pts_component_t, finalize, bool, + pts_ita_comp_tgrub_t *this, u_int8_t qualifier, bio_writer_t *result) +{ + return FALSE; +} + +METHOD(pts_component_t, get_ref, pts_component_t*, + pts_ita_comp_tgrub_t *this) +{ + ref_get(&this->ref); + return &this->public; +} + +METHOD(pts_component_t, destroy, void, + pts_ita_comp_tgrub_t *this) +{ + if (ref_put(&this->ref)) + { + this->name->destroy(this->name); + free(this); + } +} + +/** + * See header + */ +pts_component_t *pts_ita_comp_tgrub_create(u_int32_t depth, + pts_database_t *pts_db) +{ + pts_ita_comp_tgrub_t *this; + + INIT(this, + .public = { + .get_comp_func_name = _get_comp_func_name, + .get_evidence_flags = _get_evidence_flags, + .get_depth = _get_depth, + .measure = _measure, + .verify = _verify, + .finalize = _finalize, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .name = pts_comp_func_name_create(PEN_ITA, PTS_ITA_COMP_FUNC_NAME_TGRUB, + PTS_ITA_QUALIFIER_FLAG_KERNEL | + PTS_ITA_QUALIFIER_TYPE_TRUSTED), + .depth = depth, + .pts_db = pts_db, + .ref = 1, + ); + + return &this->public; +} diff --git a/src/libimcv/pts/components/ita/ita_comp_tgrub.h b/src/libimcv/pts/components/ita/ita_comp_tgrub.h new file mode 100644 index 000000000..59913c82d --- /dev/null +++ b/src/libimcv/pts/components/ita/ita_comp_tgrub.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_ita_comp_func_name pts_ita_comp_func_name + * @{ @ingroup pts + */ + +#ifndef PTS_ITA_COMP_TGRUB_H_ +#define PTS_ITA_COMP_TGRUB_H_ + +#include "pts/components/pts_component.h" + +/** + * Create a PTS ITS Functional Component object + * + * @param depth Sub-component depth + * @param pts_db PTS measurement database + */ +pts_component_t* pts_ita_comp_tgrub_create(u_int32_t depth, + pts_database_t *pts_db); + +#endif /** PTS_ITA_COMP_TGRUB_H_ @}*/ diff --git a/src/libimcv/pts/components/pts_comp_evidence.c b/src/libimcv/pts/components/pts_comp_evidence.c new file mode 100644 index 000000000..08c3d5e9a --- /dev/null +++ b/src/libimcv/pts/components/pts_comp_evidence.c @@ -0,0 +1,255 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts/components/pts_comp_evidence.h" + +#include <utils/debug.h> + +typedef struct private_pts_comp_evidence_t private_pts_comp_evidence_t; + +/** + * Private data of a pts_comp_evidence_t object. + */ +struct private_pts_comp_evidence_t { + + /** + * Public pts_comp_evidence_t interface. + */ + pts_comp_evidence_t public; + + /** + * Component Functional Name + */ + pts_comp_func_name_t *name; + + /** + * Sub-Component Depth + */ + u_int32_t depth; + + /** + * Measurement Time + */ + time_t measurement_time; + + /** + * Measurement Time + */ + chunk_t measurement; + + /** + * Measurement Hash Algorithm + */ + pts_meas_algorithms_t hash_algorithm; + + /** + * Is PCR Information included? + */ + bool has_pcr_info; + + /** + * PCR the measurement was extended into + */ + u_int32_t extended_pcr; + + /** + * PCR value before extension + */ + chunk_t pcr_before; + + /** + * PCR value after extension + */ + chunk_t pcr_after; + + /** + * Transformation used for extending measurement into PCR + */ + pts_pcr_transform_t transform; + + /** + * Component Validation Result + */ + pts_comp_evid_validation_t validation; + + /** + * Verification Policy URI + */ + char *policy_uri; + +}; + +METHOD(pts_comp_evidence_t, get_comp_func_name, pts_comp_func_name_t*, + private_pts_comp_evidence_t *this, u_int32_t *depth) +{ + if (depth) + { + *depth = this->depth; + } + return this->name; +} + +METHOD(pts_comp_evidence_t, get_extended_pcr, u_int32_t, + private_pts_comp_evidence_t *this) +{ + return this->extended_pcr; +} + +METHOD(pts_comp_evidence_t, get_measurement, chunk_t, + private_pts_comp_evidence_t *this, u_int32_t *extended_pcr, + pts_meas_algorithms_t *algo, pts_pcr_transform_t *transform, + time_t *measurement_time) +{ + if (extended_pcr) + { + *extended_pcr = this->extended_pcr; + } + if (algo) + { + *algo = this->hash_algorithm; + } + if (transform) + { + *transform = this->transform; + } + if (measurement_time) + { + *measurement_time = this->measurement_time; + } + return this->measurement; +} + +METHOD(pts_comp_evidence_t, get_pcr_info, bool, + private_pts_comp_evidence_t *this, chunk_t *pcr_before, chunk_t *pcr_after) +{ + if (pcr_before) + { + *pcr_before = this->pcr_before; + } + if (pcr_after) + { + *pcr_after = this->pcr_after; + } + return this->has_pcr_info; +} + +METHOD(pts_comp_evidence_t, set_pcr_info, void, + private_pts_comp_evidence_t *this, chunk_t pcr_before, chunk_t pcr_after) +{ + this->has_pcr_info = TRUE; + this->pcr_before = pcr_before; + this->pcr_after = pcr_after; + + DBG3(DBG_PTS, "PCR %2d before value : %#B", this->extended_pcr, &pcr_before); + DBG3(DBG_PTS, "PCR %2d after value : %#B", this->extended_pcr, &pcr_after); +} + +METHOD(pts_comp_evidence_t, get_validation, pts_comp_evid_validation_t, + private_pts_comp_evidence_t *this, char **uri) +{ + if (uri) + { + *uri = this->policy_uri; + } + return this->validation; +} + +METHOD(pts_comp_evidence_t, set_validation, void, + private_pts_comp_evidence_t *this, pts_comp_evid_validation_t validation, + char *uri) +{ + this->validation = validation; + if (uri) + { + this->policy_uri = strdup(uri); + DBG3(DBG_PTS, "'%s'", uri); + } +} + +METHOD(pts_comp_evidence_t, destroy, void, + private_pts_comp_evidence_t *this) +{ + this->name->destroy(this->name); + free(this->measurement.ptr); + free(this->pcr_before.ptr); + free(this->pcr_after.ptr); + free(this->policy_uri); + free(this); +} + +/** + * See header + */ +pts_comp_evidence_t *pts_comp_evidence_create(pts_comp_func_name_t *name, + u_int32_t depth, + u_int32_t extended_pcr, + pts_meas_algorithms_t algo, + pts_pcr_transform_t transform, + time_t measurement_time, + chunk_t measurement) +{ + private_pts_comp_evidence_t *this; + + INIT(this, + .public = { + .get_comp_func_name = _get_comp_func_name, + .get_extended_pcr = _get_extended_pcr, + .get_measurement = _get_measurement, + .get_pcr_info = _get_pcr_info, + .set_pcr_info = _set_pcr_info, + .get_validation = _get_validation, + .set_validation = _set_validation, + .destroy = _destroy, + }, + .name = name, + .depth = depth, + .extended_pcr = extended_pcr, + .hash_algorithm = algo, + .transform = transform, + .measurement_time = measurement_time, + .measurement = measurement, + ); + + name->log(name, ""); + DBG3(DBG_PTS, "measurement time: %T", &measurement_time, FALSE); + DBG3(DBG_PTS, "PCR %2d extended with: %#B", extended_pcr, &measurement); + + return &this->public; +} + +/** + * See header + */ +pts_pcr_transform_t pts_meas_algo_to_pcr_transform(pts_meas_algorithms_t algo, + size_t pcr_len) +{ + size_t hash_size; + + hash_size = pts_meas_algo_hash_size(algo); + if (hash_size == 0) + { + return PTS_PCR_TRANSFORM_NO; + } + if (hash_size == pcr_len) + { + return PTS_PCR_TRANSFORM_MATCH; + } + if (hash_size > pcr_len) + { + return PTS_PCR_TRANSFORM_LONG; + } + return PTS_PCR_TRANSFORM_SHORT; +} + diff --git a/src/libimcv/pts/components/pts_comp_evidence.h b/src/libimcv/pts/components/pts_comp_evidence.h new file mode 100644 index 000000000..55776ce8b --- /dev/null +++ b/src/libimcv/pts/components/pts_comp_evidence.h @@ -0,0 +1,170 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_comp_evidence pts_comp_evidence + * @{ @ingroup pts + */ + +#ifndef PTS_COMP_EVIDENCE_H_ +#define PTS_COMP_EVIDENCE_H_ + +typedef struct pts_comp_evidence_t pts_comp_evidence_t; +typedef enum pts_pcr_transform_t pts_pcr_transform_t; +typedef enum pts_comp_evid_validation_t pts_comp_evid_validation_t; + +#include "pts/pts_meas_algo.h" +#include "pts/components/pts_comp_func_name.h" + +#include <library.h> + +/** + * PTS PCR Transformations + */ +enum pts_pcr_transform_t { + /** No Transformation */ + PTS_PCR_TRANSFORM_NO = 0, + /** Hash Value matched PCR size */ + PTS_PCR_TRANSFORM_MATCH = 1, + /** Hash value shorter than PCR size */ + PTS_PCR_TRANSFORM_SHORT = 2, + /** Hash value longer than PCR size */ + PTS_PCR_TRANSFORM_LONG = 3, +}; + +/** + * PTS Component Evidence Validation Result Flags + */ +enum pts_comp_evid_validation_t { + /** No Validation was attempted */ + PTS_COMP_EVID_VALIDATION_NONE = 0x00, + /** Attempted validation, unable to verify */ + PTS_COMP_EVID_VALIDATION_UNABLE = 0x20, + /** Attempted validation, verification failed */ + PTS_COMP_EVID_VALIDATION_FAILED = 0x40, + /** Attempted validation, verification passed */ + PTS_COMP_EVID_VALIDATION_PASSED = 0x60, +}; + +/** + * PTS Functional Component Interface + */ +struct pts_comp_evidence_t { + + /** + * Gets the Component Functional Name and Sub-Component Depth + * + * @param depth Sub-Component Depth + * @result Component Functional Name + */ + pts_comp_func_name_t* (*get_comp_func_name)(pts_comp_evidence_t *this, + u_int32_t *depth); + + /** + * Gets the PCR the measurement was extended into + * + * @result PCR the measurement was extended into + */ + u_int32_t (*get_extended_pcr)(pts_comp_evidence_t *this); + + /** + * Gets the measurement and the algorithms used + * + * @param extended_pcr PCR the measurement was extended into + * @param algo Measurement hash algorithm + * @param transform Transformation used for PCR extension + * @param measurement_time Time the measurement was taken + * @result Measurement hash value + */ + chunk_t (*get_measurement)(pts_comp_evidence_t *this, + u_int32_t *extended_pcr, + pts_meas_algorithms_t *algo, + pts_pcr_transform_t *transform, + time_t *measurement_time); + + /** + * Gets the PCR information if available + * + * @param pcr_before PCR value before extension + * @param pcr_after PCR value after extension + * @result TRUE if PCR information is available + */ + bool (*get_pcr_info)(pts_comp_evidence_t *this, chunk_t *pcr_before, + chunk_t *pcr_after); + + /** + * Sets PCR information if available + * + * @param pcr_before PCR value before extension + * @param pcr_after PCR value after extension + */ + void (*set_pcr_info)(pts_comp_evidence_t *this, chunk_t pcr_before, + chunk_t pcr_after); + + /** + * Gets Validation Result if available + * + * @param uri Verification Policy URI + * @return validation Validation Result + */ + pts_comp_evid_validation_t (*get_validation)(pts_comp_evidence_t *this, + char **uri); + + /** + * Sets Validation Result if available + * + * @param validation Validation Result + * @param uri Verification Policy URI + */ + void (*set_validation)(pts_comp_evidence_t *this, + pts_comp_evid_validation_t validation, char* uri); + + /** + * Destroys a pts_comp_evidence_t object. + */ + void (*destroy)(pts_comp_evidence_t *this); + +}; + +/** + * Creates a pts_comp_evidence_t object + * + * @param name Component Functional Name + * @param depth Sub-component depth + * @param extended_pcr PCR the measurement was extended into + * @param algo Measurement hash algorithm + * @param transform Transformation used for PCR extension + * @param measurement_time Time the measurement was taken, 0 if unknown + * @param measurement Measurement hash value + */ +pts_comp_evidence_t* pts_comp_evidence_create(pts_comp_func_name_t *name, + u_int32_t depth, + u_int32_t extended_pcr, + pts_meas_algorithms_t algo, + pts_pcr_transform_t transform, + time_t measurement_time, + chunk_t measurement); + +/** + * Determine transform to fit measurement hash into PCR register + * + * @param algo Measurement hash algorithm + * @param pcr_len Length of the PCR registers in bytes + * @return PCR transform type + */ +pts_pcr_transform_t pts_meas_algo_to_pcr_transform(pts_meas_algorithms_t algo, + size_t pcr_len); + +#endif /** PTS_COMP_EVIDENCE_H_ @}*/ diff --git a/src/libimcv/pts/components/pts_comp_func_name.c b/src/libimcv/pts/components/pts_comp_func_name.c new file mode 100644 index 000000000..e12522ed1 --- /dev/null +++ b/src/libimcv/pts/components/pts_comp_func_name.c @@ -0,0 +1,162 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "imcv.h" +#include "pts/components/pts_comp_func_name.h" + +#include <utils/debug.h> + +typedef struct private_pts_comp_func_name_t private_pts_comp_func_name_t; + +/** + * Private data of a pts_comp_func_name_t object. + * + */ +struct private_pts_comp_func_name_t { + + /** + * Public pts_comp_func_name_t interface. + */ + pts_comp_func_name_t public; + + /** + * PTS Component Functional Name Vendor ID + */ + u_int32_t vid; + + /** + * PTS Component Functional Name + */ + u_int32_t name; + + /** + * PTS Component Functional Name Qualifier + */ + u_int8_t qualifier; + +}; + +METHOD(pts_comp_func_name_t, get_vendor_id, u_int32_t, + private_pts_comp_func_name_t *this) +{ + return this->vid; +} + +METHOD(pts_comp_func_name_t, get_name, u_int32_t, + private_pts_comp_func_name_t *this) +{ + return this->name; +} + +METHOD(pts_comp_func_name_t, get_qualifier, u_int8_t, + private_pts_comp_func_name_t *this) +{ + return this->qualifier; +} + +METHOD(pts_comp_func_name_t, set_qualifier, void, + private_pts_comp_func_name_t *this, u_int8_t qualifier) +{ + this->qualifier = qualifier; +} + +static bool equals(private_pts_comp_func_name_t *this, + private_pts_comp_func_name_t *other) +{ + if (this->vid != other->vid || this->name != other->name) + { + return FALSE; + } + if (this->qualifier == PTS_QUALIFIER_UNKNOWN || + other->qualifier == PTS_QUALIFIER_UNKNOWN) + { + return TRUE; + } + /* TODO handle qualifier wildcards */ + + return this->qualifier == other->qualifier; +} + +METHOD(pts_comp_func_name_t, clone_, pts_comp_func_name_t*, + private_pts_comp_func_name_t *this) +{ + private_pts_comp_func_name_t *clone; + + clone = malloc_thing(private_pts_comp_func_name_t); + memcpy(clone, this, sizeof(private_pts_comp_func_name_t)); + + return &clone->public; +} + +METHOD(pts_comp_func_name_t, log_, void, + private_pts_comp_func_name_t *this, char *label) +{ + enum_name_t *names, *types; + char flags[8]; + int type; + + names = imcv_pts_components->get_comp_func_names(imcv_pts_components, + this->vid); + types = imcv_pts_components->get_qualifier_type_names(imcv_pts_components, + this->vid); + type = imcv_pts_components->get_qualifier(imcv_pts_components, + &this->public, flags); + + if (names && types) + { + DBG2(DBG_PTS, "%s%N functional component '%N' [%s] '%N'", + label, pen_names, this->vid, names, this->name, flags, types, type); + } + else + { + DBG2(DBG_PTS, "%s0x%06x functional component 0x%08x 0x%02x", + label, this->vid, this->name, this->qualifier); + } +} + +METHOD(pts_comp_func_name_t, destroy, void, + private_pts_comp_func_name_t *this) +{ + free(this); +} + +/** + * See header + */ +pts_comp_func_name_t* pts_comp_func_name_create(u_int32_t vid, u_int32_t name, + u_int8_t qualifier) +{ + private_pts_comp_func_name_t *this; + + INIT(this, + .public = { + .get_vendor_id = _get_vendor_id, + .get_name = _get_name, + .get_qualifier = _get_qualifier, + .set_qualifier = _set_qualifier, + .equals = (bool(*)(pts_comp_func_name_t*,pts_comp_func_name_t*))equals, + .clone = _clone_, + .log = _log_, + .destroy = _destroy, + }, + .vid = vid, + .name = name, + .qualifier = qualifier, + ); + + return &this->public; +} + diff --git a/src/libimcv/pts/components/pts_comp_func_name.h b/src/libimcv/pts/components/pts_comp_func_name.h new file mode 100644 index 000000000..90ad7083f --- /dev/null +++ b/src/libimcv/pts/components/pts_comp_func_name.h @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_comp_func_name pts_comp_func_name + * @{ @ingroup pts + */ + +#ifndef PTS_FUNC_COMP_NAME_H_ +#define PTS_FUNC_COMP_NAME_H_ + +typedef struct pts_comp_func_name_t pts_comp_func_name_t; + +#include <library.h> + +#define PTS_QUALIFIER_UNKNOWN 0x00 +#define PTS_QUALIFIER_WILDCARD 0x3F + +/** + * PTS Component Functional Name object + */ +struct pts_comp_func_name_t { + + /** + * Get the PTS Component Functional Name Vendor ID + * + * @return PTS Component Functional Name Vendor ID + */ + u_int32_t (*get_vendor_id)(pts_comp_func_name_t *this); + + /** + * Get the PTS Component Functional Name + * + * @return PTS Component Functional Name + */ + u_int32_t (*get_name)(pts_comp_func_name_t *this); + + /** + * Get the PTS Component Functional Name Qualifier + * + * @return PTS Component Functional Name Qualifier + */ + u_int8_t (*get_qualifier)(pts_comp_func_name_t *this); + + /** + * Set the PTS Component Functional Name Qualifier + * + * @param qualifier PTS Component Functional Name Qualifier to be set + */ + void (*set_qualifier)(pts_comp_func_name_t *this, u_int8_t qualifier); + + /** + * Check to PTS Component Functional Names for equality + * + * @param other Other PTS Component Functional Name + * @return TRUE if equal + */ + bool (*equals)(pts_comp_func_name_t *this, pts_comp_func_name_t *other); + + /** + * Clone a PTS Component Functional Name + * + * @return Cloned PTS Component Functional Name + */ + pts_comp_func_name_t* (*clone)(pts_comp_func_name_t *this); + + /** + * Write PTS Component Functional Name information to the standard logfile + * + * @param label Label added to log output + */ + void (*log)(pts_comp_func_name_t *this, char *label); + + /** + * Destroys a pts_component_t object. + */ + void (*destroy)(pts_comp_func_name_t *this); + +}; + +/** + * Create a PTS Component Functional Name object + * + * @param vid PTS Component Functional Name Vendor ID + * @param name PTS Component Functional Name + * @param qualifier PTS Component Functional Name Qualifier + */ +pts_comp_func_name_t* pts_comp_func_name_create(u_int32_t vid, u_int32_t name, + u_int8_t qualifier); + +#endif /** PTS_FUNC_COMP_NAME_H_ @}*/ diff --git a/src/libimcv/pts/components/pts_component.h b/src/libimcv/pts/components/pts_component.h new file mode 100644 index 000000000..71b1ad59c --- /dev/null +++ b/src/libimcv/pts/components/pts_component.h @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2011-2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_component pts_component + * @{ @ingroup pts + */ + +#ifndef PTS_COMPONENT_H_ +#define PTS_COMPONENT_H_ + +typedef struct pts_component_t pts_component_t; + +#include "pts/pts.h" +#include "pts/pts_database.h" +#include "pts/pts_file_meas.h" +#include "pts/components/pts_comp_func_name.h" +#include "pts/components/pts_comp_evidence.h" + +#include <library.h> +#include <bio/bio_writer.h> + +/** + * PTS Functional Component Interface + */ +struct pts_component_t { + + /** + * Get the PTS Component Functional Name + * + * @return PTS Component Functional Name + */ + pts_comp_func_name_t* (*get_comp_func_name)(pts_component_t *this); + + /** + * Get the PTS Component Evidence Flags + * + * @return PTS Component Functional Name + */ + u_int8_t (*get_evidence_flags)(pts_component_t *this); + + /** + * Get the PTS Sub-component Depth + * + * @return PTS Sub-component Depth + */ + u_int32_t (*get_depth)(pts_component_t *this); + + /** + * Do evidence measurements on the PTS Functional Component + * + * @param qualifier PTS Component Functional Name Qualifier + * @param pts PTS interface + * @param evidence returns component evidence measureemt + * @param measurements additional file measurements (NULL if not present) + * @return status return code + */ + status_t (*measure)(pts_component_t *this, u_int8_t qualifier, pts_t *pts, + pts_comp_evidence_t** evidence); + + /** + * Verify the evidence measurements of the PTS Functional Component + * + * @param qualifier PTS Component Functional Name Qualifier + * @param pts PTS interface + * @param evidence component evidence measurement to be verified + * @return status return code + */ + status_t (*verify)(pts_component_t *this, u_int8_t qualifier, pts_t *pts, + pts_comp_evidence_t *evidence); + + /** + * Tell the PTS Functional Component to finalize pending registrations + * and check for missing measurements + * + * @param qualifier PTS Component Functional Name Qualifier + * @param result writer appending concise measurement result + * @return TRUE if finalization successful + */ + bool (*finalize)(pts_component_t *this, u_int8_t qualifier, + bio_writer_t *result); + + /** + * Get a new reference to the PTS Functional Component + * + * @return this, with an increased refcount + */ + pts_component_t* (*get_ref)(pts_component_t *this); + + /** + * Destroys a pts_component_t object. + */ + void (*destroy)(pts_component_t *this); + +}; + +#endif /** PTS_COMPONENT_H_ @}*/ diff --git a/src/libimcv/pts/components/pts_component_manager.c b/src/libimcv/pts/components/pts_component_manager.c new file mode 100644 index 000000000..9c1375b79 --- /dev/null +++ b/src/libimcv/pts/components/pts_component_manager.c @@ -0,0 +1,315 @@ +/* + * Copyright (C) 2011-2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts/components/pts_component_manager.h" + +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_pts_component_manager_t private_pts_component_manager_t; +typedef struct vendor_entry_t vendor_entry_t; +typedef struct component_entry_t component_entry_t; + +#define PTS_QUALIFIER_SIZE 6 + +/** + * Vendor-specific namespace information and list of registered components + */ +struct vendor_entry_t { + + /** + * Vendor ID + */ + pen_t vendor_id; + + /** + * Vendor-specific Component Functional names + */ + enum_name_t *comp_func_names; + + /** + * Vendor-specific Qualifier Type names + */ + enum_name_t *qualifier_type_names; + + /** + * Vendor-specific Qualifier Flag names + */ + char *qualifier_flag_names; + + /** + * Vendor-specific size of Qualfiier Type field + */ + int qualifier_type_size; + + /** + * List of vendor-specific registered Functional Components + */ + linked_list_t *components; +}; + +/** + * Destroy a vendor_entry_t object + */ +static void vendor_entry_destroy(vendor_entry_t *entry) +{ + entry->components->destroy_function(entry->components, free); + free(entry); +} + +/** + * Creation method for a vendor-specific Functional Component + */ +struct component_entry_t { + + /** + * Vendor-Specific Component Functional Name + */ + u_int32_t name; + + /** + * Functional Component creation method + */ + pts_component_create_t create; +}; + +/** + * Private data of a pts_component_manager_t object. + * + */ +struct private_pts_component_manager_t { + + /** + * Public pts_component_manager_t interface. + */ + pts_component_manager_t public; + + /** + * List of vendor-specific namespaces and registered components + */ + linked_list_t *list; +}; + +METHOD(pts_component_manager_t, add_vendor, void, + private_pts_component_manager_t *this, pen_t vendor_id, + enum_name_t *comp_func_names, int qualifier_type_size, + char *qualifier_flag_names, enum_name_t *qualifier_type_names) +{ + vendor_entry_t *entry; + + entry = malloc_thing(vendor_entry_t); + entry->vendor_id = vendor_id; + entry->comp_func_names = comp_func_names; + entry->qualifier_type_size = qualifier_type_size; + entry->qualifier_flag_names = qualifier_flag_names; + entry->qualifier_type_names = qualifier_type_names; + entry->components = linked_list_create(); + + this->list->insert_last(this->list, entry); + DBG2(DBG_PTS, "added %N functional component namespace", + pen_names, vendor_id); +} + +METHOD(pts_component_manager_t, get_comp_func_names, enum_name_t*, + private_pts_component_manager_t *this, pen_t vendor_id) +{ + enumerator_t *enumerator; + vendor_entry_t *entry; + enum_name_t *names = NULL; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == vendor_id) + { + names = entry->comp_func_names; + break; + } + } + enumerator->destroy(enumerator); + + return names; +} + +METHOD(pts_component_manager_t, get_qualifier_type_names, enum_name_t*, + private_pts_component_manager_t *this, pen_t vendor_id) +{ + enumerator_t *enumerator; + vendor_entry_t *entry; + enum_name_t *names = NULL; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == vendor_id) + { + names = entry->qualifier_type_names; + break; + } + } + enumerator->destroy(enumerator); + + return names; +} + +METHOD(pts_component_manager_t, add_component, void, + private_pts_component_manager_t *this, pen_t vendor_id, u_int32_t name, + pts_component_create_t create) +{ + enumerator_t *enumerator; + vendor_entry_t *entry; + component_entry_t *component; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == vendor_id) + { + component = malloc_thing(component_entry_t); + component->name = name; + component->create = create; + + entry->components->insert_last(entry->components, component); + DBG2(DBG_PTS, "added %N functional component '%N'", + pen_names, vendor_id, + get_comp_func_names(this, vendor_id), name); + } + } + enumerator->destroy(enumerator); +} + +METHOD(pts_component_manager_t, remove_vendor, void, + private_pts_component_manager_t *this, pen_t vendor_id) +{ + enumerator_t *enumerator; + vendor_entry_t *entry; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == vendor_id) + { + this->list->remove_at(this->list, enumerator); + vendor_entry_destroy(entry); + DBG2(DBG_PTS, "removed %N functional component namespace", + pen_names, vendor_id); + } + } + enumerator->destroy(enumerator); +} + +METHOD(pts_component_manager_t, get_qualifier, u_int8_t, + private_pts_component_manager_t *this, pts_comp_func_name_t *name, + char *flags) +{ + enumerator_t *enumerator; + vendor_entry_t *entry; + u_int8_t qualifier, size, flag, type = 0; + int i; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == name->get_vendor_id(name)) + { + qualifier = name->get_qualifier(name); + size = entry->qualifier_type_size; + + /* mask qualifier type field */ + type = qualifier & ((1 << size) - 1); + + /* determine flags */ + size = PTS_QUALIFIER_SIZE - size; + flag = (1 << (PTS_QUALIFIER_SIZE - 1)); + if (flags) + { + for (i = 0 ; i < size; i++) + { + flags[i] = (qualifier & flag) ? + entry->qualifier_flag_names[i] : '.'; + flag >>= 1; + } + flags[size] = '\0'; + } + } + } + enumerator->destroy(enumerator); + + return type; +} + +METHOD(pts_component_manager_t, create, pts_component_t*, + private_pts_component_manager_t *this, + pts_comp_func_name_t *name, u_int32_t depth, pts_database_t *pts_db) +{ + enumerator_t *enumerator, *e2; + vendor_entry_t *entry; + component_entry_t *entry2; + pts_component_t *component = NULL; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (entry->vendor_id == name->get_vendor_id(name)) + { + e2 = entry->components->create_enumerator(entry->components); + while (e2->enumerate(e2, &entry2)) + { + if (entry2->name == name->get_name(name) && entry2->create) + { + component = entry2->create(depth, pts_db); + break; + } + } + e2->destroy(e2); + break; + } + } + enumerator->destroy(enumerator); + + return component; +} + +METHOD(pts_component_manager_t, destroy, void, + private_pts_component_manager_t *this) +{ + this->list->destroy_function(this->list, (void *)vendor_entry_destroy); + free(this); +} + +/** + * See header + */ +pts_component_manager_t *pts_component_manager_create(void) +{ + private_pts_component_manager_t *this; + + INIT(this, + .public = { + .add_vendor = _add_vendor, + .add_component = _add_component, + .remove_vendor = _remove_vendor, + .get_comp_func_names = _get_comp_func_names, + .get_qualifier_type_names = _get_qualifier_type_names, + .get_qualifier = _get_qualifier, + .create = _create, + .destroy = _destroy, + }, + .list = linked_list_create(), + ); + + return &this->public; +} + diff --git a/src/libimcv/pts/components/pts_component_manager.h b/src/libimcv/pts/components/pts_component_manager.h new file mode 100644 index 000000000..61055ec74 --- /dev/null +++ b/src/libimcv/pts/components/pts_component_manager.h @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_component_manager pts_component_manager + * @{ @ingroup pts + */ + +#ifndef PTS_COMPONENT_MANAGER_H_ +#define PTS_COMPONENT_MANAGER_H_ + +typedef struct pts_component_manager_t pts_component_manager_t; + +#include "pts/pts_database.h" +#include "pts/components/pts_component.h" +#include "pts/components/pts_comp_func_name.h" + +#include <library.h> +#include <pen/pen.h> + +typedef pts_component_t* (*pts_component_create_t)(u_int32_t depth, + pts_database_t *pts_db); + +/** + * Manages PTS Functional Components + */ +struct pts_component_manager_t { + + /** + * Add vendor-specific functional component names + * + * @param vendor_id Private Enterprise Number (PEN) + * @param comp_func_names Vendor-specific Component Functional names + * @param qualifier_type_size Vendor-specific Qualifier Type size + * @param qualifier_flag_names Vendor-specific Qualifier Flag names + * @param qualifier_type_names Vendor-specific Qualifier Type names + */ + void (*add_vendor)(pts_component_manager_t *this, pen_t vendor_id, + enum_name_t *comp_func_names, + int qualifier_type_size, + char *qualifier_flag_names, + enum_name_t *qualifier_type_names); + + /** + * Add vendor-specific functional component + * + * @param vendor_id Private Enterprise Number (PEN) + * @param names Component Functional Name + * @param create Functional Component creation method + */ + void (*add_component)(pts_component_manager_t *this, pen_t vendor_id, + u_int32_t name, pts_component_create_t create); + + /** + * Remove vendor-specific components and associated namespace + * + * @param vendor_id Private Enterprise Number (PEN) + */ + void (*remove_vendor)(pts_component_manager_t *this, pen_t vendor_id); + + /** + * Return the Functional Component names for a given vendor ID + * + * @param vendor_id Private Enterprise Number (PEN) + * @return Comp. Func. names if found, NULL else + */ + enum_name_t* (*get_comp_func_names)(pts_component_manager_t *this, + pen_t vendor_id); + + /** + * Return the Functional Component Qualifier Type names for a given vendor ID + * + * @param vendor_id Private Enterprise Number (PEN) + * @return Qualifier Type names if found, NULL else + */ + enum_name_t* (*get_qualifier_type_names)(pts_component_manager_t *this, + pen_t vendor_id); + + /** + * Return the Qualifier Type and Flags + * + * @param name Component Functional Name + * @param flags Qualifier Flags as a string in a char buffer + * @return Qualifier Type + */ + u_int8_t (*get_qualifier)(pts_component_manager_t *this, + pts_comp_func_name_t *name, char *flags); + + /** + * Create a PTS Component object from a Functional Component Name object + * + * @param name Component Functional Name + * @param depth Sub-component Depth + * @param pts_db PTS measurement database + * @return Component object if supported, NULL else + */ + pts_component_t* (*create)(pts_component_manager_t *this, + pts_comp_func_name_t *name, u_int32_t depth, + pts_database_t *pts_db); + + /** + * Destroys a pts_component_manager_t object. + */ + void (*destroy)(pts_component_manager_t *this); +}; + +/** + * Create a PA-TNC attribute manager + */ +pts_component_manager_t* pts_component_manager_create(void); + +#endif /** PTS_COMPONENT_MANAGER_H_ @}*/ diff --git a/src/libimcv/pts/components/tcg/tcg_comp_func_name.c b/src/libimcv/pts/components/tcg/tcg_comp_func_name.c new file mode 100644 index 000000000..a70c84e48 --- /dev/null +++ b/src/libimcv/pts/components/tcg/tcg_comp_func_name.c @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_comp_func_name.h" + +char pts_tcg_qualifier_flag_names[] = { 'K', 'S' }; + +ENUM_BEGIN(pts_tcg_qualifier_type_names, PTS_TCG_QUALIFIER_TYPE_UNKNOWN, + PTS_TCG_QUALIFIER_TYPE_TNC, + "Unknown", + "Trusted Platform", + "Operating System", + "Graphical User Interface", + "Application", + "Networking", + "Library", + "TNC Defined Component" +); +ENUM_NEXT(pts_tcg_qualifier_type_names, PTS_TCG_QUALIFIER_TYPE_ALL, + PTS_TCG_QUALIFIER_TYPE_ALL, + PTS_TCG_QUALIFIER_TYPE_TNC, + "All Matching Components" +); +ENUM_END(pts_tcg_qualifier_type_names, PTS_TCG_QUALIFIER_TYPE_ALL); + +ENUM(pts_tcg_comp_func_names, PTS_TCG_COMP_FUNC_NAME_IGNORE, + PTS_TCG_COMP_FUNC_NAME_OPT_ROMS, + "Ignore", + "CRTM", + "BIOS", + "Platform Extensions", + "Motherboard Firmware", + "Initial Program Loader", + "Option ROMs" +); + diff --git a/src/libimcv/pts/components/tcg/tcg_comp_func_name.h b/src/libimcv/pts/components/tcg/tcg_comp_func_name.h new file mode 100644 index 000000000..9708ad09d --- /dev/null +++ b/src/libimcv/pts/components/tcg/tcg_comp_func_name.h @@ -0,0 +1,98 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_tcg_comp_func_name pts_tcg_comp_func_name + * @{ @ingroup pts + */ + +#ifndef PTS_TCG_COMP_FUNC_NAME_H_ +#define PTS_TCG_COMP_FUNC_NAME_H_ + +typedef enum pts_tcg_qualifier_type_t pts_tcg_qualifier_type_t; +typedef enum pts_tcg_comp_func_name_t pts_tcp_comp_func_name_t; + +#include <library.h> + +/** + * PTS Component Functional Name Qualifier Flags for the TCG namespace + * see section 5.2 of PTS Protocol: Binding to TNC IF-M Specification + * + * 0 1 2 3 4 5 + * +-+-+-+-+-+-+ + * |K|S| Type | + * +-+-+-+-+-+-+ + */ +#define PTS_TCG_QUALIFIER_FLAG_KERNEL (1<<5) +#define PTS_TCG_QUALIFIER_FLAG_SUB (1<<4) + +extern char pts_tcg_qualifier_flag_names[]; + +/** + * Size of the PTS Component Functional Name Qualifier Type field + */ +#define PTS_TCG_QUALIFIER_TYPE_SIZE 4 + +/** + * PTS Component Functional Name Qualifier Types for the TCG namespace + * see section 5.2 of PTS Protocol: Binding to TNC IF-M Specification + */ +enum pts_tcg_qualifier_type_t { + /** Unknown */ + PTS_TCG_QUALIFIER_TYPE_UNKNOWN = 0x0, + /** Trusted Platform */ + PTS_TCG_QUALIFIER_TYPE_TRUSTED = 0x1, + /** Operating System */ + PTS_TCG_QUALIFIER_TYPE_OS = 0x2, + /** Graphical User Interface */ + PTS_TCG_QUALIFIER_TYPE_GUI = 0x3, + /** Application */ + PTS_TCG_QUALIFIER_TYPE_APP = 0x4, + /** Networking */ + PTS_TCG_QUALIFIER_TYPE_NET = 0x5, + /** Library */ + PTS_TCG_QUALIFIER_TYPE_LIB = 0x6, + /** TNC Defined Component */ + PTS_TCG_QUALIFIER_TYPE_TNC = 0x7, + /** All matching Components */ + PTS_TCG_QUALIFIER_TYPE_ALL = 0xF, +}; + +extern enum_name_t *pts_tcg_qualifier_type_names; + +/** + * PTS Component Functional Name Binary Enumeration for the TCG namespace + * see section 5.3 of PTS Protocol: Binding to TNC IF-M Specification + */ +enum pts_tcg_comp_func_name_t { + /** Ignore */ + PTS_TCG_COMP_FUNC_NAME_IGNORE = 0x0000, + /** CRTM */ + PTS_TCG_COMP_FUNC_NAME_CRTM = 0x0001, + /** BIOS */ + PTS_TCG_COMP_FUNC_NAME_BIOS = 0x0002, + /** Platform Extensions */ + PTS_TCG_COMP_FUNC_NAME_PLATFORM_EXT = 0x0003, + /** Motherboard Firmware */ + PTS_TCG_COMP_FUNC_NAME_BOARD = 0x0004, + /** Initial Program Loader */ + PTS_TCG_COMP_FUNC_NAME_INIT_LOADER = 0x0005, + /** Option ROMs */ + PTS_TCG_COMP_FUNC_NAME_OPT_ROMS = 0x0006, +}; + +extern enum_name_t *pts_tcg_comp_func_names; + +#endif /** PTS_TCG_COMP_FUNC_NAME_H_ @}*/ diff --git a/src/libimcv/pts/pts.c b/src/libimcv/pts/pts.c new file mode 100644 index 000000000..2fff4c901 --- /dev/null +++ b/src/libimcv/pts/pts.c @@ -0,0 +1,1198 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2012-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts.h" + +#include <utils/debug.h> +#include <crypto/hashers/hasher.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> + +#ifdef TSS_TROUSERS +#ifdef _BASETSD_H_ +/* MinGW defines _BASETSD_H_, but TSS checks for _BASETSD_H */ +# define _BASETSD_H +#endif +#include <trousers/tss.h> +#include <trousers/trousers.h> +#else +#ifndef TPM_TAG_QUOTE_INFO2 +#define TPM_TAG_QUOTE_INFO2 0x0036 +#endif +#ifndef TPM_LOC_ZERO +#define TPM_LOC_ZERO 0x01 +#endif +#endif + +#include <sys/types.h> +#include <sys/stat.h> +#include <libgen.h> +#include <unistd.h> +#include <errno.h> + +typedef struct private_pts_t private_pts_t; + +/** + * Private data of a pts_t object. + * + */ +struct private_pts_t { + + /** + * Public pts_t interface. + */ + pts_t public; + + /** + * PTS Protocol Capabilities + */ + pts_proto_caps_flag_t proto_caps; + + /** + * PTS Measurement Algorithm + */ + pts_meas_algorithms_t algorithm; + + /** + * DH Hash Algorithm + */ + pts_meas_algorithms_t dh_hash_algorithm; + + /** + * PTS Diffie-Hellman Secret + */ + diffie_hellman_t *dh; + + /** + * PTS Diffie-Hellman Initiator Nonce + */ + chunk_t initiator_nonce; + + /** + * PTS Diffie-Hellman Responder Nonce + */ + chunk_t responder_nonce; + + /** + * Secret assessment value to be used for TPM Quote as an external data + */ + chunk_t secret; + + /** + * Primary key of platform entry in database + */ + int platform_id; + + /** + * TRUE if IMC-PTS, FALSE if IMV-PTS + */ + bool is_imc; + + /** + * Do we have an activated TPM + */ + bool has_tpm; + + /** + * Contains a TPM_CAP_VERSION_INFO struct + */ + chunk_t tpm_version_info; + + /** + * Contains TSS Blob structure for AIK + */ + chunk_t aik_blob; + + /** + * Contains a Attestation Identity Key or Certificate + */ + certificate_t *aik; + + /** + * Primary key referening AIK in database + */ + int aik_id; + + /** + * Shadow PCR set + */ + pts_pcr_t *pcrs; + +}; + +METHOD(pts_t, get_proto_caps, pts_proto_caps_flag_t, + private_pts_t *this) +{ + return this->proto_caps; +} + +METHOD(pts_t, set_proto_caps, void, + private_pts_t *this, pts_proto_caps_flag_t flags) +{ + this->proto_caps = flags; + DBG2(DBG_PTS, "supported PTS protocol capabilities: %s%s%s%s%s", + flags & PTS_PROTO_CAPS_C ? "C" : ".", + flags & PTS_PROTO_CAPS_V ? "V" : ".", + flags & PTS_PROTO_CAPS_D ? "D" : ".", + flags & PTS_PROTO_CAPS_T ? "T" : ".", + flags & PTS_PROTO_CAPS_X ? "X" : "."); +} + +METHOD(pts_t, get_meas_algorithm, pts_meas_algorithms_t, + private_pts_t *this) +{ + return this->algorithm; +} + +METHOD(pts_t, set_meas_algorithm, void, + private_pts_t *this, pts_meas_algorithms_t algorithm) +{ + hash_algorithm_t hash_alg; + + hash_alg = pts_meas_algo_to_hash(algorithm); + DBG2(DBG_PTS, "selected PTS measurement algorithm is %N", + hash_algorithm_names, hash_alg); + if (hash_alg != HASH_UNKNOWN) + { + this->algorithm = algorithm; + } +} + +METHOD(pts_t, get_dh_hash_algorithm, pts_meas_algorithms_t, + private_pts_t *this) +{ + return this->dh_hash_algorithm; +} + +METHOD(pts_t, set_dh_hash_algorithm, void, + private_pts_t *this, pts_meas_algorithms_t algorithm) +{ + hash_algorithm_t hash_alg; + + hash_alg = pts_meas_algo_to_hash(algorithm); + DBG2(DBG_PTS, "selected DH hash algorithm is %N", + hash_algorithm_names, hash_alg); + if (hash_alg != HASH_UNKNOWN) + { + this->dh_hash_algorithm = algorithm; + } +} + + +METHOD(pts_t, create_dh_nonce, bool, + private_pts_t *this, pts_dh_group_t group, int nonce_len) +{ + diffie_hellman_group_t dh_group; + chunk_t *nonce; + rng_t *rng; + + dh_group = pts_dh_group_to_ike(group); + DBG2(DBG_PTS, "selected PTS DH group is %N", + diffie_hellman_group_names, dh_group); + DESTROY_IF(this->dh); + this->dh = lib->crypto->create_dh(lib->crypto, dh_group); + + rng = lib->crypto->create_rng(lib->crypto, RNG_STRONG); + if (!rng) + { + DBG1(DBG_PTS, "no rng available"); + return FALSE; + } + DBG2(DBG_PTS, "nonce length is %d", nonce_len); + nonce = this->is_imc ? &this->responder_nonce : &this->initiator_nonce; + chunk_free(nonce); + if (!rng->allocate_bytes(rng, nonce_len, nonce)) + { + DBG1(DBG_PTS, "failed to allocate nonce"); + rng->destroy(rng); + return FALSE; + } + rng->destroy(rng); + return TRUE; +} + +METHOD(pts_t, get_my_public_value, void, + private_pts_t *this, chunk_t *value, chunk_t *nonce) +{ + this->dh->get_my_public_value(this->dh, value); + *nonce = this->is_imc ? this->responder_nonce : this->initiator_nonce; +} + +METHOD(pts_t, set_peer_public_value, void, + private_pts_t *this, chunk_t value, chunk_t nonce) +{ + this->dh->set_other_public_value(this->dh, value); + + nonce = chunk_clone(nonce); + if (this->is_imc) + { + this->initiator_nonce = nonce; + } + else + { + this->responder_nonce = nonce; + } +} + +METHOD(pts_t, calculate_secret, bool, + private_pts_t *this) +{ + hasher_t *hasher; + hash_algorithm_t hash_alg; + chunk_t shared_secret; + + /* Check presence of nonces */ + if (!this->initiator_nonce.len || !this->responder_nonce.len) + { + DBG1(DBG_PTS, "initiator and/or responder nonce is not available"); + return FALSE; + } + DBG3(DBG_PTS, "initiator nonce: %B", &this->initiator_nonce); + DBG3(DBG_PTS, "responder nonce: %B", &this->responder_nonce); + + /* Calculate the DH secret */ + if (this->dh->get_shared_secret(this->dh, &shared_secret) != SUCCESS) + { + DBG1(DBG_PTS, "shared DH secret computation failed"); + return FALSE; + } + DBG3(DBG_PTS, "shared DH secret: %B", &shared_secret); + + /* Calculate the secret assessment value */ + hash_alg = pts_meas_algo_to_hash(this->dh_hash_algorithm); + hasher = lib->crypto->create_hasher(lib->crypto, hash_alg); + + if (!hasher || + !hasher->get_hash(hasher, chunk_from_chars('1'), NULL) || + !hasher->get_hash(hasher, this->initiator_nonce, NULL) || + !hasher->get_hash(hasher, this->responder_nonce, NULL) || + !hasher->allocate_hash(hasher, shared_secret, &this->secret)) + { + DESTROY_IF(hasher); + return FALSE; + } + hasher->destroy(hasher); + + /* The DH secret must be destroyed */ + chunk_clear(&shared_secret); + + /* + * Truncate the hash to 20 bytes to fit the ExternalData + * argument of the TPM Quote command + */ + this->secret.len = min(this->secret.len, 20); + DBG3(DBG_PTS, "secret assessment value: %B", &this->secret); + return TRUE; +} + +#ifdef TSS_TROUSERS + +/** + * Print TPM 1.2 Version Info + */ +static void print_tpm_version_info(private_pts_t *this) +{ + TPM_CAP_VERSION_INFO *info; + + info = (TPM_CAP_VERSION_INFO*)this->tpm_version_info.ptr; + + if (this->tpm_version_info.len >= + sizeof(*info) - sizeof(info->vendorSpecific)) + { + DBG2(DBG_PTS, "TPM Version Info: Chip Version: %u.%u.%u.%u, " + "Spec Level: %u, Errata Rev: %u, Vendor ID: %.4s", + info->version.major, info->version.minor, + info->version.revMajor, info->version.revMinor, + untoh16(&info->specLevel), info->errataRev, info->tpmVendorID); + } + else + { + DBG1(DBG_PTS, "could not parse tpm version info"); + } +} + +#else + +static void print_tpm_version_info(private_pts_t *this) +{ + DBG1(DBG_PTS, "unknown TPM version: no TSS implementation available"); +} + +#endif /* TSS_TROUSERS */ + +METHOD(pts_t, get_platform_id, int, + private_pts_t *this) +{ + return this->platform_id; +} + +METHOD(pts_t, set_platform_id, void, + private_pts_t *this, int pid) +{ + this->platform_id = pid; +} + +METHOD(pts_t, get_tpm_version_info, bool, + private_pts_t *this, chunk_t *info) +{ + if (!this->has_tpm) + { + return FALSE; + } + *info = this->tpm_version_info; + print_tpm_version_info(this); + return TRUE; +} + +METHOD(pts_t, set_tpm_version_info, void, + private_pts_t *this, chunk_t info) +{ + this->tpm_version_info = chunk_clone(info); + print_tpm_version_info(this); +} + +/** + * Load an AIK Blob (TSS_TSPATTRIB_KEYBLOB_BLOB attribute) + */ +static void load_aik_blob(private_pts_t *this) +{ + char *path; + chunk_t *map; + + path = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.aik_blob", NULL, lib->ns); + if (path) + { + map = chunk_map(path, FALSE); + if (map) + { + DBG2(DBG_PTS, "loaded AIK Blob from '%s'", path); + DBG3(DBG_PTS, "AIK Blob: %B", map); + this->aik_blob = chunk_clone(*map); + chunk_unmap(map); + } + else + { + DBG1(DBG_PTS, "unable to map AIK Blob file '%s': %s", + path, strerror(errno)); + } + } + else + { + DBG1(DBG_PTS, "AIK Blob is not available"); + } +} + +/** + * Load an AIK certificate or public key + * the certificate having precedence over the public key if both are present + */ +static void load_aik(private_pts_t *this) +{ + char *cert_path, *key_path; + + cert_path = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.aik_cert", NULL, lib->ns); + key_path = lib->settings->get_str(lib->settings, + "%s.plugins.imc-attestation.aik_pubkey", NULL, lib->ns); + + if (cert_path) + { + this->aik = lib->creds->create(lib->creds, CRED_CERTIFICATE, + CERT_X509, BUILD_FROM_FILE, + cert_path, BUILD_END); + if (this->aik) + { + DBG2(DBG_PTS, "loaded AIK certificate from '%s'", cert_path); + return; + } + } + if (key_path) + { + this->aik = lib->creds->create(lib->creds, CRED_CERTIFICATE, + CERT_TRUSTED_PUBKEY, BUILD_FROM_FILE, + key_path, BUILD_END); + if (this->aik) + { + DBG2(DBG_PTS, "loaded AIK public key from '%s'", key_path); + return; + } + } + + DBG1(DBG_PTS, "neither AIK certificate nor public key is available"); +} + +METHOD(pts_t, get_aik, certificate_t*, + private_pts_t *this) +{ + return this->aik; +} + +METHOD(pts_t, set_aik, void, + private_pts_t *this, certificate_t *aik, int aik_id) +{ + DESTROY_IF(this->aik); + this->aik = aik->get_ref(aik); + this->aik_id = aik_id; +} + +METHOD(pts_t, get_aik_id, int, + private_pts_t *this) +{ + return this->aik_id; +} + +METHOD(pts_t, is_path_valid, bool, + private_pts_t *this, char *path, pts_error_code_t *error_code) +{ + struct stat st; + + *error_code = 0; + + if (!stat(path, &st)) + { + return TRUE; + } + else if (errno == ENOENT || errno == ENOTDIR) + { + DBG1(DBG_PTS, "file/directory does not exist %s", path); + *error_code = TCG_PTS_FILE_NOT_FOUND; + } + else if (errno == EFAULT) + { + DBG1(DBG_PTS, "bad address %s", path); + *error_code = TCG_PTS_INVALID_PATH; + } + else + { + DBG1(DBG_PTS, "error: %s occurred while validating path: %s", + strerror(errno), path); + return FALSE; + } + + return TRUE; +} + +/** + * Obtain statistical information describing a file + */ +static bool file_metadata(char *pathname, pts_file_metadata_t **entry) +{ + struct stat st; + pts_file_metadata_t *this; + + this = malloc_thing(pts_file_metadata_t); + + if (stat(pathname, &st)) + { + DBG1(DBG_PTS, "unable to obtain statistics about '%s'", pathname); + free(this); + return FALSE; + } + + if (S_ISREG(st.st_mode)) + { + this->type = PTS_FILE_REGULAR; + } + else if (S_ISDIR(st.st_mode)) + { + this->type = PTS_FILE_DIRECTORY; + } + else if (S_ISCHR(st.st_mode)) + { + this->type = PTS_FILE_CHAR_SPEC; + } + else if (S_ISBLK(st.st_mode)) + { + this->type = PTS_FILE_BLOCK_SPEC; + } + else if (S_ISFIFO(st.st_mode)) + { + this->type = PTS_FILE_FIFO; + } +#ifndef WIN32 + else if (S_ISLNK(st.st_mode)) + { + this->type = PTS_FILE_SYM_LINK; + } + else if (S_ISSOCK(st.st_mode)) + { + this->type = PTS_FILE_SOCKET; + } +#endif /* WIN32 */ + else + { + this->type = PTS_FILE_OTHER; + } + + this->filesize = st.st_size; + this->created = st.st_ctime; + this->modified = st.st_mtime; + this->accessed = st.st_atime; + this->owner = st.st_uid; + this->group = st.st_gid; + + *entry = this; + return TRUE; +} + +METHOD(pts_t, get_metadata, pts_file_meta_t*, + private_pts_t *this, char *pathname, bool is_directory) +{ + pts_file_meta_t *metadata; + pts_file_metadata_t *entry; + + /* Create a metadata object */ + metadata = pts_file_meta_create(); + + if (is_directory) + { + enumerator_t *enumerator; + char *rel_name, *abs_name; + struct stat st; + + enumerator = enumerator_create_directory(pathname); + if (!enumerator) + { + DBG1(DBG_PTS," directory '%s' can not be opened, %s", pathname, + strerror(errno)); + metadata->destroy(metadata); + return NULL; + } + while (enumerator->enumerate(enumerator, &rel_name, &abs_name, &st)) + { + /* measure regular files only */ + if (S_ISREG(st.st_mode) && *rel_name != '.') + { + if (!file_metadata(abs_name, &entry)) + { + enumerator->destroy(enumerator); + metadata->destroy(metadata); + return NULL; + } + entry->filename = strdup(rel_name); + metadata->add(metadata, entry); + } + } + enumerator->destroy(enumerator); + } + else + { + if (!file_metadata(pathname, &entry)) + { + metadata->destroy(metadata); + return NULL; + } + entry->filename = path_basename(pathname); + metadata->add(metadata, entry); + } + + return metadata; +} + + +#ifdef TSS_TROUSERS + +METHOD(pts_t, read_pcr, bool, + private_pts_t *this, u_int32_t pcr_num, chunk_t *pcr_value) +{ + TSS_HCONTEXT hContext; + TSS_HTPM hTPM; + TSS_RESULT result; + BYTE *buf; + UINT32 len; + + bool success = FALSE; + + result = Tspi_Context_Create(&hContext); + if (result != TSS_SUCCESS) + { + DBG1(DBG_PTS, "TPM context could not be created: tss error 0x%x", result); + return FALSE; + } + + result = Tspi_Context_Connect(hContext, NULL); + if (result != TSS_SUCCESS) + { + goto err; + } + result = Tspi_Context_GetTpmObject (hContext, &hTPM); + if (result != TSS_SUCCESS) + { + goto err; + } + result = Tspi_TPM_PcrRead(hTPM, pcr_num, &len, &buf); + if (result != TSS_SUCCESS) + { + goto err; + } + *pcr_value = chunk_clone(chunk_create(buf, len)); + DBG3(DBG_PTS, "PCR %d value:%B", pcr_num, pcr_value); + success = TRUE; + +err: + if (!success) + { + DBG1(DBG_PTS, "TPM not available: tss error 0x%x", result); + } + Tspi_Context_FreeMemory(hContext, NULL); + Tspi_Context_Close(hContext); + + return success; +} + +METHOD(pts_t, extend_pcr, bool, + private_pts_t *this, u_int32_t pcr_num, chunk_t input, chunk_t *output) +{ + TSS_HCONTEXT hContext; + TSS_HTPM hTPM; + TSS_RESULT result; + u_int32_t pcr_length; + chunk_t pcr_value = chunk_empty; + + result = Tspi_Context_Create(&hContext); + if (result != TSS_SUCCESS) + { + DBG1(DBG_PTS, "TPM context could not be created: tss error 0x%x", + result); + return FALSE; + } + result = Tspi_Context_Connect(hContext, NULL); + if (result != TSS_SUCCESS) + { + goto err; + } + result = Tspi_Context_GetTpmObject (hContext, &hTPM); + if (result != TSS_SUCCESS) + { + goto err; + } + + pcr_value = chunk_alloc(PTS_PCR_LEN); + result = Tspi_TPM_PcrExtend(hTPM, pcr_num, PTS_PCR_LEN, input.ptr, + NULL, &pcr_length, &pcr_value.ptr); + if (result != TSS_SUCCESS) + { + goto err; + } + + *output = pcr_value; + *output = chunk_clone(*output); + + DBG3(DBG_PTS, "PCR %d extended with: %B", pcr_num, &input); + DBG3(DBG_PTS, "PCR %d value after extend: %B", pcr_num, output); + + chunk_clear(&pcr_value); + Tspi_Context_FreeMemory(hContext, NULL); + Tspi_Context_Close(hContext); + + return TRUE; + +err: + DBG1(DBG_PTS, "TPM not available: tss error 0x%x", result); + + chunk_clear(&pcr_value); + Tspi_Context_FreeMemory(hContext, NULL); + Tspi_Context_Close(hContext); + + return FALSE; +} + +METHOD(pts_t, quote_tpm, bool, + private_pts_t *this, bool use_quote2, chunk_t *pcr_comp, chunk_t *quote_sig) +{ + TSS_HCONTEXT hContext; + TSS_HTPM hTPM; + TSS_HKEY hAIK; + TSS_HKEY hSRK; + TSS_HPOLICY srkUsagePolicy; + TSS_UUID SRK_UUID = TSS_UUID_SRK; + BYTE secret[] = TSS_WELL_KNOWN_SECRET; + TSS_HPCRS hPcrComposite; + TSS_VALIDATION valData; + TSS_RESULT result; + chunk_t quote_info; + BYTE* versionInfo; + u_int32_t versionInfoSize, pcr; + enumerator_t *enumerator; + bool success = FALSE; + + result = Tspi_Context_Create(&hContext); + if (result != TSS_SUCCESS) + { + DBG1(DBG_PTS, "TPM context could not be created: tss error 0x%x", + result); + return FALSE; + } + result = Tspi_Context_Connect(hContext, NULL); + if (result != TSS_SUCCESS) + { + goto err1; + } + result = Tspi_Context_GetTpmObject (hContext, &hTPM); + if (result != TSS_SUCCESS) + { + goto err1; + } + + /* Retrieve SRK from TPM and set the authentication to well known secret*/ + result = Tspi_Context_LoadKeyByUUID(hContext, TSS_PS_TYPE_SYSTEM, + SRK_UUID, &hSRK); + if (result != TSS_SUCCESS) + { + goto err1; + } + + result = Tspi_GetPolicyObject(hSRK, TSS_POLICY_USAGE, &srkUsagePolicy); + if (result != TSS_SUCCESS) + { + goto err1; + } + result = Tspi_Policy_SetSecret(srkUsagePolicy, TSS_SECRET_MODE_SHA1, + 20, secret); + if (result != TSS_SUCCESS) + { + goto err1; + } + + result = Tspi_Context_LoadKeyByBlob (hContext, hSRK, this->aik_blob.len, + this->aik_blob.ptr, &hAIK); + if (result != TSS_SUCCESS) + { + goto err1; + } + + /* Create PCR composite object */ + result = use_quote2 ? + Tspi_Context_CreateObject(hContext, TSS_OBJECT_TYPE_PCRS, + TSS_PCRS_STRUCT_INFO_SHORT, &hPcrComposite) : + Tspi_Context_CreateObject(hContext, TSS_OBJECT_TYPE_PCRS, + TSS_PCRS_STRUCT_DEFAULT, &hPcrComposite); + if (result != TSS_SUCCESS) + { + goto err2; + } + + /* Select PCRs */ + enumerator = this->pcrs->create_enumerator(this->pcrs); + while (enumerator->enumerate(enumerator, &pcr)) + { + result = use_quote2 ? + Tspi_PcrComposite_SelectPcrIndexEx(hPcrComposite, pcr, + TSS_PCRS_DIRECTION_RELEASE) : + Tspi_PcrComposite_SelectPcrIndex(hPcrComposite, pcr); + if (result != TSS_SUCCESS) + { + break; + } + } + enumerator->destroy(enumerator); + + if (result != TSS_SUCCESS) + { + goto err3; + } + + /* Set the Validation Data */ + valData.ulExternalDataLength = this->secret.len; + valData.rgbExternalData = (BYTE *)this->secret.ptr; + + + /* TPM Quote */ + result = use_quote2 ? + Tspi_TPM_Quote2(hTPM, hAIK, FALSE, hPcrComposite, &valData, + &versionInfoSize, &versionInfo): + Tspi_TPM_Quote(hTPM, hAIK, hPcrComposite, &valData); + if (result != TSS_SUCCESS) + { + goto err4; + } + + /* Set output chunks */ + *pcr_comp = chunk_alloc(HASH_SIZE_SHA1); + + if (use_quote2) + { + /* TPM_Composite_Hash is last 20 bytes of TPM_Quote_Info2 structure */ + memcpy(pcr_comp->ptr, valData.rgbData + valData.ulDataLength - HASH_SIZE_SHA1, + HASH_SIZE_SHA1); + } + else + { + /* TPM_Composite_Hash is 8-28th bytes of TPM_Quote_Info structure */ + memcpy(pcr_comp->ptr, valData.rgbData + 8, HASH_SIZE_SHA1); + } + DBG3(DBG_PTS, "Hash of PCR Composite: %#B", pcr_comp); + + quote_info = chunk_create(valData.rgbData, valData.ulDataLength); + DBG3(DBG_PTS, "TPM Quote Info: %B","e_info); + + *quote_sig = chunk_clone(chunk_create(valData.rgbValidationData, + valData.ulValidationDataLength)); + DBG3(DBG_PTS, "TPM Quote Signature: %B",quote_sig); + + success = TRUE; + + /* Cleanup */ +err4: + Tspi_Context_FreeMemory(hContext, NULL); + +err3: + Tspi_Context_CloseObject(hContext, hPcrComposite); + +err2: + Tspi_Context_CloseObject(hContext, hAIK); + +err1: + Tspi_Context_Close(hContext); + if (!success) + { + DBG1(DBG_PTS, "TPM not available: tss error 0x%x", result); + } + return success; +} + +#else /* TSS_TROUSERS */ + +METHOD(pts_t, read_pcr, bool, + private_pts_t *this, u_int32_t pcr_num, chunk_t *pcr_value) +{ + return FALSE; +} + +METHOD(pts_t, extend_pcr, bool, + private_pts_t *this, u_int32_t pcr_num, chunk_t input, chunk_t *output) +{ + return FALSE; +} + +METHOD(pts_t, quote_tpm, bool, + private_pts_t *this, bool use_quote2, chunk_t *pcr_comp, chunk_t *quote_sig) +{ + return FALSE; +} + +#endif /* TSS_TROUSERS */ + +/** + * TPM_QUOTE_INFO structure: + * 4 bytes of version + * 4 bytes 'Q' 'U' 'O' 'T' + * 20 byte SHA1 of TCPA_PCR_COMPOSITE + * 20 byte nonce + * + * TPM_QUOTE_INFO2 structure: + * 2 bytes Tag 0x0036 TPM_Tag_Quote_info2 + * 4 bytes 'Q' 'U' 'T' '2' + * 20 bytes nonce + * 26 bytes PCR_INFO_SHORT + */ + +METHOD(pts_t, get_quote_info, bool, + private_pts_t *this, bool use_quote2, bool use_ver_info, + pts_meas_algorithms_t comp_hash_algo, + chunk_t *out_pcr_comp, chunk_t *out_quote_info) +{ + chunk_t selection, pcr_comp, hash_pcr_comp; + bio_writer_t *writer; + hasher_t *hasher; + + if (!this->pcrs->get_count(this->pcrs)) + { + DBG1(DBG_PTS, "No extended PCR entries available, " + "unable to construct TPM Quote Info"); + return FALSE; + } + if (!this->secret.ptr) + { + DBG1(DBG_PTS, "Secret assessment value unavailable, ", + "unable to construct TPM Quote Info"); + return FALSE; + } + if (use_quote2 && use_ver_info && !this->tpm_version_info.ptr) + { + DBG1(DBG_PTS, "TPM Version Information unavailable, ", + "unable to construct TPM Quote Info2"); + return FALSE; + } + + pcr_comp = this->pcrs->get_composite(this->pcrs); + + + /* Output the TPM_PCR_COMPOSITE expected from IMC */ + if (comp_hash_algo) + { + hash_algorithm_t algo; + + algo = pts_meas_algo_to_hash(comp_hash_algo); + hasher = lib->crypto->create_hasher(lib->crypto, algo); + + /* Hash the PCR Composite Structure */ + if (!hasher || !hasher->allocate_hash(hasher, pcr_comp, out_pcr_comp)) + { + DESTROY_IF(hasher); + free(pcr_comp.ptr); + return FALSE; + } + DBG3(DBG_PTS, "constructed PCR Composite hash: %#B", out_pcr_comp); + hasher->destroy(hasher); + } + else + { + *out_pcr_comp = chunk_clone(pcr_comp); + } + + /* SHA1 hash of PCR Composite to construct TPM_QUOTE_INFO */ + hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1); + if (!hasher || !hasher->allocate_hash(hasher, pcr_comp, &hash_pcr_comp)) + { + DESTROY_IF(hasher); + chunk_free(out_pcr_comp); + free(pcr_comp.ptr); + return FALSE; + } + hasher->destroy(hasher); + + /* Construct TPM_QUOTE_INFO/TPM_QUOTE_INFO2 structure */ + writer = bio_writer_create(TPM_QUOTE_INFO_LEN); + + if (use_quote2) + { + /* TPM Structure Tag */ + writer->write_uint16(writer, TPM_TAG_QUOTE_INFO2); + + /* Magic QUT2 value */ + writer->write_data(writer, chunk_create("QUT2", 4)); + + /* Secret assessment value 20 bytes (nonce) */ + writer->write_data(writer, this->secret); + + /* PCR selection */ + selection.ptr = pcr_comp.ptr; + selection.len = 2 + this->pcrs->get_selection_size(this->pcrs); + writer->write_data(writer, selection); + + /* TPM Locality Selection */ + writer->write_uint8(writer, TPM_LOC_ZERO); + + /* PCR Composite Hash */ + writer->write_data(writer, hash_pcr_comp); + + if (use_ver_info) + { + /* TPM version Info */ + writer->write_data(writer, this->tpm_version_info); + } + } + else + { + /* Version number */ + writer->write_data(writer, chunk_from_chars(1, 1, 0, 0)); + + /* Magic QUOT value */ + writer->write_data(writer, chunk_create("QUOT", 4)); + + /* PCR Composite Hash */ + writer->write_data(writer, hash_pcr_comp); + + /* Secret assessment value 20 bytes (nonce) */ + writer->write_data(writer, this->secret); + } + + /* TPM Quote Info */ + *out_quote_info = writer->extract_buf(writer); + DBG3(DBG_PTS, "constructed TPM Quote Info: %B", out_quote_info); + + writer->destroy(writer); + free(pcr_comp.ptr); + free(hash_pcr_comp.ptr); + + return TRUE; +} + +METHOD(pts_t, verify_quote_signature, bool, + private_pts_t *this, chunk_t data, chunk_t signature) +{ + public_key_t *aik_pub_key; + + aik_pub_key = this->aik->get_public_key(this->aik); + if (!aik_pub_key) + { + DBG1(DBG_PTS, "failed to get public key from AIK certificate"); + return FALSE; + } + + if (!aik_pub_key->verify(aik_pub_key, SIGN_RSA_EMSA_PKCS1_SHA1, + data, signature)) + { + DBG1(DBG_PTS, "signature verification failed for TPM Quote Info"); + DESTROY_IF(aik_pub_key); + return FALSE; + } + + aik_pub_key->destroy(aik_pub_key); + return TRUE; +} + +METHOD(pts_t, get_pcrs, pts_pcr_t*, + private_pts_t *this) +{ + return this->pcrs; +} + +METHOD(pts_t, destroy, void, + private_pts_t *this) +{ + DESTROY_IF(this->pcrs); + DESTROY_IF(this->aik); + DESTROY_IF(this->dh); + free(this->initiator_nonce.ptr); + free(this->responder_nonce.ptr); + free(this->secret.ptr); + free(this->aik_blob.ptr); + free(this->tpm_version_info.ptr); + free(this); +} + + +#ifdef TSS_TROUSERS + +/** + * Check for a TPM by querying for TPM Version Info + */ +static bool has_tpm(private_pts_t *this) +{ + TSS_HCONTEXT hContext; + TSS_HTPM hTPM; + TSS_RESULT result; + u_int32_t version_info_len; + + result = Tspi_Context_Create(&hContext); + if (result != TSS_SUCCESS) + { + DBG1(DBG_PTS, "TPM context could not be created: tss error 0x%x", + result); + return FALSE; + } + result = Tspi_Context_Connect(hContext, NULL); + if (result != TSS_SUCCESS) + { + goto err; + } + result = Tspi_Context_GetTpmObject (hContext, &hTPM); + if (result != TSS_SUCCESS) + { + goto err; + } + result = Tspi_TPM_GetCapability(hTPM, TSS_TPMCAP_VERSION_VAL, 0, NULL, + &version_info_len, + &this->tpm_version_info.ptr); + this->tpm_version_info.len = version_info_len; + if (result != TSS_SUCCESS) + { + goto err; + } + this->tpm_version_info = chunk_clone(this->tpm_version_info); + + Tspi_Context_FreeMemory(hContext, NULL); + Tspi_Context_Close(hContext); + return TRUE; + + err: + DBG1(DBG_PTS, "TPM not available: tss error 0x%x", result); + Tspi_Context_FreeMemory(hContext, NULL); + Tspi_Context_Close(hContext); + return FALSE; +} + +#else /* TSS_TROUSERS */ + +static bool has_tpm(private_pts_t *this) +{ + return FALSE; +} + +#endif /* TSS_TROUSERS */ + + +/** + * See header + */ +pts_t *pts_create(bool is_imc) +{ + private_pts_t *this; + pts_pcr_t *pcrs; + + pcrs = pts_pcr_create(); + if (!pcrs) + { + DBG1(DBG_PTS, "shadow PCR set could not be created"); + return NULL; + } + + INIT(this, + .public = { + .get_proto_caps = _get_proto_caps, + .set_proto_caps = _set_proto_caps, + .get_meas_algorithm = _get_meas_algorithm, + .set_meas_algorithm = _set_meas_algorithm, + .get_dh_hash_algorithm = _get_dh_hash_algorithm, + .set_dh_hash_algorithm = _set_dh_hash_algorithm, + .create_dh_nonce = _create_dh_nonce, + .get_my_public_value = _get_my_public_value, + .set_peer_public_value = _set_peer_public_value, + .calculate_secret = _calculate_secret, + .get_platform_id = _get_platform_id, + .set_platform_id = _set_platform_id, + .get_tpm_version_info = _get_tpm_version_info, + .set_tpm_version_info = _set_tpm_version_info, + .get_aik = _get_aik, + .set_aik = _set_aik, + .get_aik_id = _get_aik_id, + .is_path_valid = _is_path_valid, + .get_metadata = _get_metadata, + .read_pcr = _read_pcr, + .extend_pcr = _extend_pcr, + .quote_tpm = _quote_tpm, + .get_pcrs = _get_pcrs, + .get_quote_info = _get_quote_info, + .verify_quote_signature = _verify_quote_signature, + .destroy = _destroy, + }, + .is_imc = is_imc, + .proto_caps = PTS_PROTO_CAPS_V, + .algorithm = PTS_MEAS_ALGO_SHA256, + .dh_hash_algorithm = PTS_MEAS_ALGO_SHA256, + .pcrs = pcrs, + ); + + if (is_imc) + { + if (has_tpm(this)) + { + this->has_tpm = TRUE; + this->proto_caps |= PTS_PROTO_CAPS_T | PTS_PROTO_CAPS_D; + load_aik(this); + load_aik_blob(this); + } + } + else + { + this->proto_caps |= PTS_PROTO_CAPS_T | PTS_PROTO_CAPS_D; + } + + return &this->public; +} diff --git a/src/libimcv/pts/pts.h b/src/libimcv/pts/pts.h new file mode 100644 index 000000000..be32a3464 --- /dev/null +++ b/src/libimcv/pts/pts.h @@ -0,0 +1,315 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2012-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts pts + * @{ @ingroup libimcv + */ + +#ifndef PTS_H_ +#define PTS_H_ + +typedef struct pts_t pts_t; + +#include "pts_error.h" +#include "pts_proto_caps.h" +#include "pts_meas_algo.h" +#include "pts_file_meas.h" +#include "pts_file_meta.h" +#include "pts_dh_group.h" +#include "pts_pcr.h" +#include "pts_req_func_comp_evid.h" +#include "pts_simple_evid_final.h" +#include "components/pts_comp_func_name.h" + +#include <library.h> +#include <collections/linked_list.h> + +/** + * UTF-8 encoding of the character used to delimiter the filename + */ +#define SOLIDUS_UTF 0x2F +#define REVERSE_SOLIDUS_UTF 0x5C + +/** + * PCR indices used for measurements of various functional components + */ +#define PCR_BIOS 0 +#define PCR_PLATFORM_EXT 1 +#define PCR_MOTHERBOARD 1 +#define PCR_OPTION_ROMS 2 +#define PCR_IPL 4 + +#define PCR_TBOOT_POLICY 17 +#define PCR_TBOOT_MLE 18 + +#define PCR_TGRUB_MBR_STAGE1 4 +#define PCR_TGRUB_STAGE2_PART1 8 +#define PCR_TGRUB_STAGE2_PART2 9 +#define PCR_TGRUB_CMD_LINE_ARGS 12 +#define PCR_TGRUB_CHECKFILE 13 +#define PCR_TGRUB_LOADED_FILES 14 + +#define PCR_DEBUG 16 + +/** + * Length of the generated nonce used for calculation of shared secret + */ +#define ASSESSMENT_SECRET_LEN 20 + +/** + * Length of the TPM_QUOTE_INFO structure, TPM Spec 1.2 + */ +#define TPM_QUOTE_INFO_LEN 48 + +/** + * Hashing algorithm used by tboot and trustedGRUB + */ +#define TRUSTED_HASH_ALGO PTS_MEAS_ALGO_SHA1 + +/** + * Class implementing the TCG Platform Trust Service (PTS) + * + */ +struct pts_t { + + /** + * Get PTS Protocol Capabilities + * + * @return Protocol capabilities flags + */ + pts_proto_caps_flag_t (*get_proto_caps)(pts_t *this); + + /** + * Set PTS Protocol Capabilities + * + * @param flags Protocol capabilities flags + */ + void (*set_proto_caps)(pts_t *this, pts_proto_caps_flag_t flags); + + /** + * Get PTS Measurement Algorithm + * + * @return PTS measurement algorithm + */ + pts_meas_algorithms_t (*get_meas_algorithm)(pts_t *this); + + /** + * Set PTS Measurement Algorithm + * + * @param algorithm PTS measurement algorithm + */ + void (*set_meas_algorithm)(pts_t *this, pts_meas_algorithms_t algorithm); + + /** + * Get DH Hash Algorithm + * + * @return DH hash algorithm + */ + pts_meas_algorithms_t (*get_dh_hash_algorithm)(pts_t *this); + + /** + * Set DH Hash Algorithm + * + * @param algorithm DH hash algorithm + */ + void (*set_dh_hash_algorithm)(pts_t *this, pts_meas_algorithms_t algorithm); + + /** + * Create PTS Diffie-Hellman object and nonce + * + * @param group PTS DH group + * @param nonce_len Nonce length + * @return TRUE if creation was successful + * + */ + bool (*create_dh_nonce)(pts_t *this, pts_dh_group_t group, int nonce_len); + + /** + * Get my Diffie-Hellman public value + * + * @param value My public DH value + * @param nonce My DH nonce + */ + void (*get_my_public_value)(pts_t *this, chunk_t *value, chunk_t *nonce); + + /** + * Set peer Diffie.Hellman public value + * + * @param value Peer public DH value + * @param nonce Peer DH nonce + */ + void (*set_peer_public_value) (pts_t *this, chunk_t value, chunk_t nonce); + + /** + * Calculates assessment secret to be used for TPM Quote as ExternalData + * + * @return TRUE unless both DH public values + * and nonces are set + */ + bool (*calculate_secret) (pts_t *this); + + /** + * Get primary key of platform entry in database + * + * @return Platform and OS info + */ + int (*get_platform_id)(pts_t *this); + + /** + * Set primary key of platform entry in database + * + * @param pid Primary key of platform entry in database + */ + void (*set_platform_id)(pts_t *this, int pid); + + /** + * Get TPM 1.2 Version Info + * + * @param info chunk containing a TPM_CAP_VERSION_INFO struct + * @return TRUE if TPM Version Info available + */ + bool (*get_tpm_version_info)(pts_t *this, chunk_t *info); + + /** + * Set TPM 1.2 Version Info + * + * @param info chunk containing a TPM_CAP_VERSION_INFO struct + */ + void (*set_tpm_version_info)(pts_t *this, chunk_t info); + + /** + * Get Attestation Identity Certificate or Public Key + * + * @return AIK Certificate or Public Key + */ + certificate_t* (*get_aik)(pts_t *this); + + /** + * Set Attestation Identity Certificate or Public Key + * + * @param aik AIK Certificate or Public Key + * @param aik_id Primary key referencing AIK in database + */ + void (*set_aik)(pts_t *this, certificate_t *aik, int aik_id); + + /** + * Get primary key referencing AIK in database + * + * @return Primary key referencing AIK in database + */ + int (*get_aik_id)(pts_t *this); + + /** + * Check whether path is valid file/directory on filesystem + * + * @param path Absolute path + * @param error_code Output variable for PTS error code + * @return TRUE if path is valid or file/directory + * doesn't exist or path is invalid + * FALSE if local error occurred within stat function + */ + bool (*is_path_valid)(pts_t *this, char *path, pts_error_code_t *error_code); + + /** + * Obtain file metadata + * + * @param pathname Absolute pathname of file/directory + * @param is_dir TRUE if directory contents are requested + * @return PTS File Metadata or NULL if FAILED + */ + pts_file_meta_t* (*get_metadata)(pts_t *this, char *pathname, bool is_dir); + + /** + * Reads given PCR value and returns it + * Expects owner secret to be WELL_KNOWN_SECRET + * + * @param pcr_num Number of PCR to read + * @param pcr_value Chunk to save pcr read output + * @return NULL in case of TSS error, PCR value otherwise + */ + bool (*read_pcr)(pts_t *this, u_int32_t pcr_num, chunk_t *pcr_value); + + /** + * Extends given PCR with given value + * Expects owner secret to be WELL_KNOWN_SECRET + * + * @param pcr_num Number of PCR to extend + * @param input Value to extend + * @param output Chunk to save PCR value after extension + * @return FALSE in case of TSS error, TRUE otherwise + */ + bool (*extend_pcr)(pts_t *this, u_int32_t pcr_num, chunk_t input, + chunk_t *output); + + /** + * Quote over PCR's + * Expects owner and SRK secret to be WELL_KNOWN_SECRET and no password set for AIK + * + * @param use_quote2 Version of the Quote function to be used + * @param pcr_comp Chunk to save PCR composite structure + * @param quote_sig Chunk to save quote operation output + * without external data (anti-replay protection) + * @return FALSE in case of TSS error, TRUE otherwise + */ + bool (*quote_tpm)(pts_t *this, bool use_quote2, chunk_t *pcr_comp, + chunk_t *quote_sig); + + /** + * Get the shadow PCR set + * + * @return shadow PCR set + */ + pts_pcr_t* (*get_pcrs)(pts_t *this); + + /** + * Constructs and returns TPM Quote Info structure expected from IMC + * + * @param use_quote2 Version of the TPM_QUOTE_INFO to be constructed + * @param use_ver_info Version info is concatenated to TPM_QUOTE_INFO2 + * @param comp_hash_algo Composite Hash Algorithm + * @param pcr_comp Output variable to store PCR Composite + * @param quote_info Output variable to store TPM Quote Info + * @return FALSE in case of any error, TRUE otherwise + */ + bool (*get_quote_info)(pts_t *this, bool use_quote2, bool ver_info_included, + pts_meas_algorithms_t comp_hash_algo, + chunk_t *pcr_comp, chunk_t *quote_info); + + /** + * Constructs and returns PCR Quote Digest structure expected from IMC + * + * @param data Calculated TPM Quote Digest + * @param signature TPM Quote Signature received from IMC + * @return FALSE if signature is not verified + */ + bool (*verify_quote_signature)(pts_t *this, chunk_t data, chunk_t signature); + + /** + * Destroys a pts_t object. + */ + void (*destroy)(pts_t *this); + +}; + +/** + * Creates an pts_t object + * + * @param is_imc TRUE if running on an IMC + */ +pts_t* pts_create(bool is_imc); + +#endif /** PTS_H_ @}*/ diff --git a/src/libimcv/pts/pts_creds.c b/src/libimcv/pts/pts_creds.c new file mode 100644 index 000000000..bc483eb84 --- /dev/null +++ b/src/libimcv/pts/pts_creds.c @@ -0,0 +1,136 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_creds.h" + +#include <utils/debug.h> +#include <credentials/certificates/x509.h> +#include <credentials/sets/mem_cred.h> + +#include <sys/stat.h> + +typedef struct private_pts_creds_t private_pts_creds_t; + +/** + * Private data of a pts_creds_t object. + * + */ +struct private_pts_creds_t { + + /** + * Public pts_creds_t interface. + */ + pts_creds_t public; + + /** + * Credential set + */ + mem_cred_t *creds; + +}; + +METHOD(pts_creds_t, get_set, credential_set_t*, + private_pts_creds_t *this) +{ + return &this->creds->set; +} + + +METHOD(pts_creds_t, destroy, void, + private_pts_creds_t *this) +{ + this->creds->destroy(this->creds); + free(this); +} + +/** + * Load trusted PTS CA certificates from a directory + */ +static void load_cacerts(private_pts_creds_t *this, char *path) +{ + enumerator_t *enumerator; + struct stat st; + char *file; + + DBG1(DBG_PTS, "loading PTS ca certificates from '%s'", path); + + enumerator = enumerator_create_directory(path); + if (!enumerator) + { + return; + } + + while (enumerator->enumerate(enumerator, NULL, &file, &st)) + { + certificate_t *cert; + + if (!S_ISREG(st.st_mode)) + { + /* skip special file */ + continue; + } + cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, CERT_X509, + BUILD_FROM_FILE, file, BUILD_END); + if (cert) + { + x509_t *x509 = (x509_t*)cert; + + if (!(x509->get_flags(x509) & X509_CA)) + { + DBG1(DBG_PTS, " ca certificate \"%Y\" lacks ca basic constraint" + ", discarded", cert->get_subject(cert)); + cert->destroy(cert); + } + else + { + DBG1(DBG_PTS, " loaded ca certificate \"%Y\" from '%s'", + cert->get_subject(cert), file); + this->creds->add_cert(this->creds, TRUE, cert); + } + } + else + { + DBG1(DBG_PTS, " loading ca certificate from '%s' failed", file); + } + } + enumerator->destroy(enumerator); +} + +/** + * See header + */ +pts_creds_t *pts_creds_create(char *path) +{ + private_pts_creds_t *this; + + if (!path) + { + DBG1(DBG_PTS, "no PTS cacerts directory defined"); + return NULL; + } + + INIT(this, + .public = { + .get_set = _get_set, + .destroy = _destroy, + }, + .creds = mem_cred_create(), + ); + + load_cacerts(this, path); + + return &this->public; +} + diff --git a/src/libimcv/pts/pts_creds.h b/src/libimcv/pts/pts_creds.h new file mode 100644 index 000000000..eb9c39537 --- /dev/null +++ b/src/libimcv/pts/pts_creds.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_creds pts_creds + * @{ @ingroup pts + */ + +#ifndef PTS_CREDS_H_ +#define PTS_CREDS_H_ + +typedef struct pts_creds_t pts_creds_t; + +#include <library.h> +#include <credentials/credential_set.h> + +/** + * Class implementing a PTS credentials set + */ +struct pts_creds_t { + + /** + * Get the credential set + * + * @return credential set + */ + credential_set_t* (*get_set)(pts_creds_t *this); + + /** + * Destroys a pts_creds_t object. + */ + void (*destroy)(pts_creds_t *this); + +}; + +/** + * Creates an pts_creds_t object + * + * @param path path to the PTS cacerts directory + */ +pts_creds_t* pts_creds_create(char *path); + +#endif /** PTS_CREDS_H_ @}*/ diff --git a/src/libimcv/pts/pts_database.c b/src/libimcv/pts/pts_database.c new file mode 100644 index 000000000..d7b85c138 --- /dev/null +++ b/src/libimcv/pts/pts_database.c @@ -0,0 +1,432 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2012-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <libgen.h> + +#include "pts_database.h" + +#include <utils/debug.h> +#include <crypto/hashers/hasher.h> + + +typedef struct private_pts_database_t private_pts_database_t; + +/** + * Private data of a pts_database_t object. + * + */ +struct private_pts_database_t { + + /** + * Public pts_database_t interface. + */ + pts_database_t public; + + /** + * database instance + */ + database_t *db; + +}; + +METHOD(pts_database_t, get_pathname, char*, + private_pts_database_t *this, bool is_dir, int id) +{ + enumerator_t *e; + char *path, *name, *sep, *pathname = NULL; + + if (is_dir) + { + e = this->db->query(this->db, + "SELECT path FROM directories WHERE id = ?", + DB_INT, id, DB_TEXT); + if (!e || !e->enumerate(e, &path)) + { + pathname = NULL; + } + else + { + pathname = strdup(path); + } + } + else + { + e = this->db->query(this->db, + "SELECT d.path, f.name FROM files AS f " + "JOIN directories AS d ON d.id = f.dir WHERE f.id = ?", + DB_INT, id, DB_TEXT, DB_TEXT); + if (e && e->enumerate(e, &path, &name)) + { + if (path[0] == '/') + { /* Unix style absolute path */ + sep = "/"; + } + else + { /* Windows absolute path */ + sep = "\\"; + } + if (asprintf(&pathname, "%s%s%s", + path, streq(path, "/") ? "" : sep, name) == -1) + { + pathname = NULL; + } + } + } + DESTROY_IF(e); + + return pathname; +} + +METHOD(pts_database_t, create_file_hash_enumerator, enumerator_t*, + private_pts_database_t *this, int pid, pts_meas_algorithms_t algo, + bool is_dir, int id) +{ + enumerator_t *e; + + if (is_dir) + { + e = this->db->query(this->db, + "SELECT f.id, f.name, fh.hash FROM file_hashes AS fh " + "JOIN files AS f ON f.id = fh.file " + "JOIN directories as d ON d.id = f.dir " + "WHERE fh.product = ? AND fh.algo = ? AND d.id = ? " + "ORDER BY f.name", + DB_INT, pid, DB_INT, algo, DB_INT, id, DB_INT, DB_TEXT, DB_BLOB); + } + else + { + e = this->db->query(this->db, + "SELECT f.id, f.name, fh.hash FROM file_hashes AS fh " + "JOIN files AS f ON f.id = fh.file " + "WHERE fh.product = ? AND fh.algo = ? AND fh.file = ?", + DB_INT, pid, DB_INT, algo, DB_INT, id, DB_INT, DB_TEXT, DB_BLOB); + } + return e; +} + +METHOD(pts_database_t, add_file_measurement, status_t, + private_pts_database_t *this, int pid, pts_meas_algorithms_t algo, + chunk_t measurement, char *filename, bool is_dir, int id) +{ + enumerator_t *e; + char *name; + chunk_t hash_value; + int hash_id, fid; + status_t status = SUCCESS; + + if (is_dir) + { + /* does filename entry already exist? */ + e = this->db->query(this->db, + "SELECT id FROM files WHERE name = ? AND dir = ?", + DB_TEXT, filename, DB_INT, id, DB_INT); + if (!e) + { + return FAILED; + } + if (!e->enumerate(e, &fid)) + { + /* create filename entry */ + if (this->db->execute(this->db, &fid, + "INSERT INTO files (name, dir) VALUES (?, ?)", + DB_TEXT, filename, DB_INT, id) != 1) + { + DBG1(DBG_PTS, "could not insert filename into database"); + status = FAILED; + } + } + e->destroy(e); + } + else + { + fid = id; + + /* verify filename */ + e = this->db->query(this->db, + "SELECT name FROM files WHERE id = ?", DB_INT, fid, DB_TEXT); + if (!e) + { + return FAILED; + } + if (!e->enumerate(e, &name) || !streq(name, filename)) + { + DBG1(DBG_PTS, "filename of reference measurement does not match"); + status = FAILED; + } + e->destroy(e); + } + + if (status != SUCCESS) + { + return status; + } + + /* does hash measurement value already exist? */ + e = this->db->query(this->db, + "SELECT fh.id, fh.hash FROM file_hashes AS fh " + "WHERE fh.product = ? AND fh.algo = ? AND fh.file = ?", + DB_INT, pid, DB_INT, algo, DB_INT, fid, DB_INT, DB_BLOB); + if (!e) + { + return FAILED; + } + if (e->enumerate(e, &hash_id, &hash_value)) + { + if (!chunk_equals(measurement, hash_value)) + { + /* update hash measurement value */ + if (this->db->execute(this->db, &hash_id, + "UPDATE file_hashes SET hash = ? WHERE id = ?", + DB_BLOB, measurement, DB_INT, hash_id) != 1) + { + status = FAILED; + } + } + } + else + { + /* insert hash measurement value */ + if (this->db->execute(this->db, &hash_id, + "INSERT INTO file_hashes (file, product, algo, hash) " + "VALUES (?, ?, ?, ?)", DB_INT, fid, DB_INT, pid, + DB_INT, algo, DB_BLOB, measurement) != 1) + { + status = FAILED; + } + } + e->destroy(e); + + return status; +} + +METHOD(pts_database_t, create_file_meas_enumerator, enumerator_t*, + private_pts_database_t *this, int pid, pts_meas_algorithms_t algo, + char *filename) +{ + enumerator_t *e; + char *dir, *file; + + if (strlen(filename) < 1) + { + return NULL; + } + + /* separate filename into directory and basename components */ + dir = path_dirname(filename); + file = path_basename(filename); + + if (*dir == '.') + { /* relative pathname */ + e = this->db->query(this->db, + "SELECT fh.hash FROM file_hashes AS fh " + "JOIN files AS f ON f.id = fh.file " + "WHERE fh.product = ? AND f.name = ? AND fh.algo = ?", + DB_INT, pid, DB_TEXT, file, DB_INT, algo, DB_BLOB); + } + else + { /* absolute pathname */ + int did; + + /* find directory entry first */ + e = this->db->query(this->db, + "SELECT id FROM directories WHERE path = ?", + DB_TEXT, dir, DB_INT); + + if (!e || !e->enumerate(e, &did)) + { + goto err; + } + e->destroy(e); + + e = this->db->query(this->db, + "SELECT fh.hash FROM file_hashes AS fh " + "JOIN files AS f ON f.id = fh.file " + "WHERE fh.product = ? AND f.dir = ? AND f.name = ? AND fh.algo = ?", + DB_INT, pid, DB_INT, did, DB_TEXT, file, DB_INT, algo, DB_BLOB); + } + +err: + free(file); + free(dir); + + return e; +} + +METHOD(pts_database_t, check_comp_measurement, status_t, + private_pts_database_t *this, chunk_t measurement, int cid, int aik_id, + int seq_no, int pcr, pts_meas_algorithms_t algo) +{ + enumerator_t *e; + chunk_t hash; + status_t status = NOT_FOUND; + + e = this->db->query(this->db, + "SELECT hash FROM component_hashes " + "WHERE component = ? AND key = ? " + "AND seq_no = ? AND pcr = ? AND algo = ? ", + DB_INT, cid, DB_INT, aik_id, DB_INT, seq_no, + DB_INT, pcr, DB_INT, algo, DB_BLOB); + if (!e) + { + DBG1(DBG_PTS, "no database query enumerator returned"); + return FAILED; + } + + while (e->enumerate(e, &hash)) + { + if (chunk_equals(hash, measurement)) + { + status = SUCCESS; + break; + } + else + { + DBG1(DBG_PTS, "PCR %2d no matching component measurement #%d " + "found in database", pcr, seq_no); + DBG1(DBG_PTS, " expected: %#B", &hash); + DBG1(DBG_PTS, " received: %#B", &measurement); + status = VERIFY_ERROR; + break; + } + } + e->destroy(e); + + if (status == NOT_FOUND) + { + DBG1(DBG_PTS, "PCR %2d no measurement #%d " + "found in database", pcr, seq_no); + } + + return status; +} + +METHOD(pts_database_t, insert_comp_measurement, status_t, + private_pts_database_t *this, chunk_t measurement, int cid, int aik_id, + int seq_no, int pcr, pts_meas_algorithms_t algo) +{ + int id; + + if (this->db->execute(this->db, &id, + "INSERT INTO component_hashes " + "(component, key, seq_no, pcr, algo, hash) " + "VALUES (?, ?, ?, ?, ?, ?)", + DB_INT, cid, DB_INT, aik_id, DB_INT, seq_no, DB_INT, pcr, + DB_INT, algo, DB_BLOB, measurement) == 1) + { + return SUCCESS; + } + + DBG1(DBG_PTS, "could not insert component measurement into database"); + return FAILED; +} + +METHOD(pts_database_t, delete_comp_measurements, int, + private_pts_database_t *this, int cid, int aik_id) +{ + return this->db->execute(this->db, NULL, + "DELETE FROM component_hashes " + "WHERE component = ? AND key = ?", + DB_INT, cid, DB_INT, aik_id); +} + +METHOD(pts_database_t, get_comp_measurement_count, status_t, + private_pts_database_t *this, pts_comp_func_name_t *comp_name, + int aik_id, pts_meas_algorithms_t algo, int *cid, int *count) +{ + enumerator_t *e; + status_t status = SUCCESS; + + /* Initialize count */ + *count = 0; + + /* Get the primary key of the Component Functional Name */ + e = this->db->query(this->db, + "SELECT id FROM components " + " WHERE vendor_id = ? AND name = ? AND qualifier = ?", + DB_INT, comp_name->get_vendor_id(comp_name), + DB_INT, comp_name->get_name(comp_name), + DB_INT, comp_name->get_qualifier(comp_name), + DB_INT); + if (!e) + { + DBG1(DBG_PTS, "no database query enumerator returned"); + return FAILED; + } + if (!e->enumerate(e, cid)) + { + DBG1(DBG_PTS, "component functional name not found in database"); + e->destroy(e); + return FAILED; + } + e->destroy(e); + + /* Get the number of stored measurements for a given AIK and component */ + e = this->db->query(this->db, + "SELECT COUNT(*) FROM component_hashes AS ch " + "WHERE component = ? AND key = ? AND algo = ?", + DB_INT, *cid, DB_INT, aik_id, DB_INT, algo, DB_INT); + if (!e) + { + DBG1(DBG_PTS, "no database query enumerator returned"); + return FAILED; + } + if (!e->enumerate(e, count)) + { + DBG1(DBG_PTS, "no component measurement count returned from database"); + status = FAILED; + } + e->destroy(e); + + return status; +} + +METHOD(pts_database_t, destroy, void, + private_pts_database_t *this) +{ + free(this); +} + +/** + * See header + */ +pts_database_t *pts_database_create(imv_database_t *imv_db) +{ + private_pts_database_t *this; + + if (!imv_db) + { + return NULL; + } + + INIT(this, + .public = { + .get_pathname = _get_pathname, + .create_file_hash_enumerator = _create_file_hash_enumerator, + .add_file_measurement = _add_file_measurement, + .create_file_meas_enumerator = _create_file_meas_enumerator, + .check_comp_measurement = _check_comp_measurement, + .insert_comp_measurement = _insert_comp_measurement, + .delete_comp_measurements = _delete_comp_measurements, + .get_comp_measurement_count = _get_comp_measurement_count, + .destroy = _destroy, + }, + .db = imv_db->get_database(imv_db), + ); + + return &this->public; +} diff --git a/src/libimcv/pts/pts_database.h b/src/libimcv/pts/pts_database.h new file mode 100644 index 000000000..a6c9fb3b6 --- /dev/null +++ b/src/libimcv/pts/pts_database.h @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_database pts_database + * @{ @ingroup pts + */ + +#ifndef PTS_DATABASE_H_ +#define PTS_DATABASE_H_ + +typedef struct pts_database_t pts_database_t; + +#include "pts_meas_algo.h" +#include "components/pts_comp_func_name.h" + +#include <imv/imv_database.h> +#include <library.h> + +/** + * Class implementing the PTS File Measurement database + * + */ +struct pts_database_t { + + /** + * Get absolute pathname for file or directory measurement + * + * @param is_dir TRUE if dir, FALSE if file + * @param id Primary key into directories or files table + * @return Absolute pathname as a text string + */ + char* (*get_pathname)(pts_database_t *this, bool is_dir, int id); + + /** + * Get stored measurement hash for single file or directory entries + * + * @param pid Primary key of software product in database + * @param algo Hash algorithm used for measurement + * @param is_dir TRUE if directory was measured + * @param id Primary key of measured file/directory + * @return Enumerator over all matching measurement hashes + */ + enumerator_t* (*create_file_hash_enumerator)(pts_database_t *this, + int pid, pts_meas_algorithms_t algo, + bool is_dir, int id); + + /** + * Add PTS file measurement reference value + * + * @param pid Primary key of software product in database + * @param algo File measurement hash algorithm used + * @param measurement File measurement hash + * @param filename Optional name of the file to be checked + * @param is_dir TRUE if part of directory measurement + * @param id Primary key into direcories/files table + * @return Status + */ + status_t (*add_file_measurement)(pts_database_t *this, int pid, + pts_meas_algorithms_t algo, + chunk_t measurement, char *filename, + bool is_dir, int id); + + /** + * Get PTS measurement[s] for a given filename stored in database + * + * @param pid Primary key of software product in database + * @param algo File measurement hash algorithm used + * @param filename Name of the file to be checked + * @return Enumerator over all matching measurement hashes + */ + enumerator_t* (*create_file_meas_enumerator)(pts_database_t *this, int pid, + pts_meas_algorithms_t algo, + char *filename); + + /** + * Check a functional component measurement against value stored in database + * + * @param measurement measurement hash + * @param cid Primary key of Component Functional Name entry + * @param aik_id Primary key of AIK entry in database + * @param seq_no Measurement sequence number + * @param prc Number of the PCR the measurement was extended into + * @param algo Hash algorithm used for measurement + * @return SUCCESS if check was successful + */ + status_t (*check_comp_measurement)(pts_database_t *this, chunk_t measurement, + int cid, int aik_id, int seq_no, int pcr, + pts_meas_algorithms_t algo); + + /** + * Insert a functional component measurement into the database + * + * @param measurement Measurement hash + * @param cid Primary key of Component Functional Name entry + * @param aik_id Primary key of AIK entry in database + * @param seq_no Measurement sequence number + * @param prc Number of the PCR the measurement was extended into + * @param algo Hash algorithm used for measurement + * @return SUCCESS if INSERT was successful + */ + status_t (*insert_comp_measurement)(pts_database_t *this, chunk_t measurement, + int cid, int aik_id, int seq_no, int pcr, + pts_meas_algorithms_t algo); + + /** + * Delete functional component measurements from the database + * + * @param cid Primary key of Component Functional Name entry + * @param aik_id Primary key of AIK entry in database + * @return number of deleted measurement entries + */ + int (*delete_comp_measurements)(pts_database_t *this, int cid, int aik_id); + + /** + * Get the number of measurements for a functional component and AIK + * + * @param comp_name Component Functional Name + * @param aik_id Primary key of AIK entry in database + * @param algo Hash algorithm used for measurement + * @param cid Primary key of Component Functional Name entry + * @param count measurement count + * @return SUCCESS if COUNT was successful + */ + status_t (*get_comp_measurement_count)(pts_database_t *this, + pts_comp_func_name_t *comp_name, int aik_id, + pts_meas_algorithms_t algo, int *cid, int *count); + + /** + * Destroys a pts_database_t object. + */ + void (*destroy)(pts_database_t *this); + +}; + +/** + * Creates an pts_database_t object + * + * @param imv_db Already attached IMV database + */ +pts_database_t* pts_database_create(imv_database_t *imv_db); + +#endif /** PTS_DATABASE_H_ @}*/ diff --git a/src/libimcv/pts/pts_dh_group.c b/src/libimcv/pts/pts_dh_group.c new file mode 100644 index 000000000..305b4ec4f --- /dev/null +++ b/src/libimcv/pts/pts_dh_group.c @@ -0,0 +1,184 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_dh_group.h" + +#include <utils/debug.h> + +/** + * Described in header. + */ +bool pts_dh_group_probe(pts_dh_group_t *dh_groups, bool mandatory_dh_groups) +{ + enumerator_t *enumerator; + diffie_hellman_group_t dh_group; + const char *plugin_name; + char format1[] = " %s PTS DH group %N[%s] available"; + char format2[] = " %s PTS DH group %N not available"; + + *dh_groups = PTS_DH_GROUP_NONE; + + enumerator = lib->crypto->create_dh_enumerator(lib->crypto); + while (enumerator->enumerate(enumerator, &dh_group, &plugin_name)) + { + if (dh_group == MODP_1024_BIT) + { + *dh_groups |= PTS_DH_GROUP_IKE2; + DBG2(DBG_PTS, format1, "optional ", diffie_hellman_group_names, + dh_group, plugin_name); + } + else if (dh_group == MODP_1536_BIT) + { + *dh_groups |= PTS_DH_GROUP_IKE5; + DBG2(DBG_PTS, format1, "optional ", diffie_hellman_group_names, + dh_group, plugin_name); + } + else if (dh_group == MODP_2048_BIT) + { + *dh_groups |= PTS_DH_GROUP_IKE14; + DBG2(DBG_PTS, format1, "optional ", diffie_hellman_group_names, + dh_group, plugin_name); + } + else if (dh_group == ECP_256_BIT) + { + *dh_groups |= PTS_DH_GROUP_IKE19; + DBG2(DBG_PTS, format1, "mandatory", diffie_hellman_group_names, + dh_group, plugin_name); + } + else if (dh_group == ECP_384_BIT) + { + *dh_groups |= PTS_DH_GROUP_IKE20; + DBG2(DBG_PTS, format1, "optional ", diffie_hellman_group_names, + dh_group, plugin_name); + } + } + enumerator->destroy(enumerator); + + if (*dh_groups & PTS_DH_GROUP_IKE19) + { + /* mandatory PTS DH group is available */ + return TRUE; + } + if (*dh_groups == PTS_DH_GROUP_NONE) + { + DBG1(DBG_PTS, "no PTS DH group available"); + return FALSE; + } + if (mandatory_dh_groups) + { + DBG1(DBG_PTS, format2, "mandatory", diffie_hellman_group_names, + ECP_256_BIT); + return FALSE; + } + + /* at least one optional PTS DH group is available */ + return TRUE; +} + +/** + * Described in header. + */ +bool pts_dh_group_update(char *dh_group, pts_dh_group_t *dh_groups) +{ + if (strcaseeq(dh_group, "ecp384")) + { + /* nothing to update, all groups are supported */ + return TRUE; + } + if (strcaseeq(dh_group, "ecp256")) + { + /* remove DH group 20 */ + *dh_groups &= ~PTS_DH_GROUP_IKE20; + return TRUE; + } + if (strcaseeq(dh_group, "modp2048")) + { + /* remove DH groups 19 and 20 */ + *dh_groups &= ~(PTS_DH_GROUP_IKE20 | PTS_DH_GROUP_IKE19); + return TRUE; + } + if (strcaseeq(dh_group, "modp1536")) + { + /* remove DH groups 14, 19 and 20 */ + *dh_groups &= ~(PTS_DH_GROUP_IKE20 | PTS_DH_GROUP_IKE19 | + PTS_DH_GROUP_IKE14); + return TRUE; + } + if (strcaseeq(dh_group, "modp1024")) + { + /* remove DH groups 5, 14, 19 and 20 */ + *dh_groups &= ~(PTS_DH_GROUP_IKE20 | PTS_DH_GROUP_IKE19 | + PTS_DH_GROUP_IKE14 | PTS_DH_GROUP_IKE5); + return TRUE; + } + DBG1(DBG_PTS, "unknown DH group '%s' configured", dh_group); + return FALSE; +} + +/** + * Described in header. + */ +pts_dh_group_t pts_dh_group_select(pts_dh_group_t supported_dh_groups, + pts_dh_group_t offered_dh_groups) +{ + if ((supported_dh_groups & PTS_DH_GROUP_IKE20) && + (offered_dh_groups & PTS_DH_GROUP_IKE20)) + { + return PTS_DH_GROUP_IKE20; + } + if ((supported_dh_groups & PTS_DH_GROUP_IKE19) && + (offered_dh_groups & PTS_DH_GROUP_IKE19)) + { + return PTS_DH_GROUP_IKE19; + } + if ((supported_dh_groups & PTS_DH_GROUP_IKE14) && + (offered_dh_groups & PTS_DH_GROUP_IKE14)) + { + return PTS_DH_GROUP_IKE14; + } + if ((supported_dh_groups & PTS_DH_GROUP_IKE5) && + (offered_dh_groups & PTS_DH_GROUP_IKE5)) + { + return PTS_DH_GROUP_IKE5; + } + if ((supported_dh_groups & PTS_DH_GROUP_IKE2) && + (offered_dh_groups & PTS_DH_GROUP_IKE2)) + { + return PTS_DH_GROUP_IKE2; + } + return PTS_DH_GROUP_NONE; +} + +/** + * Described in header. + */ +diffie_hellman_group_t pts_dh_group_to_ike(pts_dh_group_t dh_group) +{ + switch (dh_group) + { + case PTS_DH_GROUP_IKE2: + return MODP_1024_BIT; + case PTS_DH_GROUP_IKE5: + return MODP_1536_BIT; + case PTS_DH_GROUP_IKE14: + return MODP_2048_BIT; + case PTS_DH_GROUP_IKE19: + return ECP_256_BIT; + case PTS_DH_GROUP_IKE20: + return ECP_384_BIT; + default: + return MODP_NONE; + } +} diff --git a/src/libimcv/pts/pts_dh_group.h b/src/libimcv/pts/pts_dh_group.h new file mode 100644 index 000000000..f5d951e9a --- /dev/null +++ b/src/libimcv/pts/pts_dh_group.h @@ -0,0 +1,107 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_dh_group pts_dh_group + * @{ @ingroup pts + */ + +#ifndef PTS_DH_GROUP_H_ +#define PTS_DH_GROUP_H_ + +#include <library.h> +#include <crypto/diffie_hellman.h> + +typedef enum pts_dh_group_t pts_dh_group_t; + +/** + * PTS Diffie Hellman Group Values + */ +enum pts_dh_group_t { + /** No DH Group */ + PTS_DH_GROUP_NONE = 0, + /** IKE Group 2 */ + PTS_DH_GROUP_IKE2 = (1<<15), + /** IKE Group 5 */ + PTS_DH_GROUP_IKE5 = (1<<14), + /** IKE Group 14 */ + PTS_DH_GROUP_IKE14 = (1<<13), + /** IKE Group 19 */ + PTS_DH_GROUP_IKE19 = (1<<12), + /** IKE Group 20 */ + PTS_DH_GROUP_IKE20 = (1<<11), +}; + +/** + * Diffie-Hellman Group Values + * see section 3.8.6 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |1|2|3|4|5|R|R|R|R|R|R|R|R|R|R|R| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +/** + * Probe available PTS Diffie-Hellman groups + * + * @param dh_groups returns set of available DH groups + * @param mandatory_dh_groups if TRUE enforce mandatory PTS DH groups + * @return TRUE if mandatory DH groups are available + * or at least one optional DH group if + * mandatory_dh_groups is set to FALSE. + */ +bool pts_dh_group_probe(pts_dh_group_t *dh_groups, bool mandatory_dh_groups); + +/** + * Update supported Diffie-Hellman groups according to configuration + * + * modp1024: PTS_DH_GROUP_IKE2 + * modp1536: PTS_DH_GROUP_IKE2 | PTS_DH_GROUP_IKE5 + * modp2048: PTS_DH_GROUP_IKE2 | PTS_DH_GROUP_IKE5 | PTS_DH_GROUP_IKE14 + * ecp256: PTS_DH_GROUP_IKE2 | PTS_DH_GROUP_IKE5 | PTS_DH_GROUP_IKE14 | + * PTS_DH_GROUP_IKE19 + * ecp384: PTS_DH_GROUP_IKE2 | PTS_DH_GROUP_IKE5 | PTS_DH_GROUP_IKE14 | + * PTS_DH_GROUP_IKE19 | PTS_DH_GROUP_IKE20 + * + * The PTS-IMC is expected to select the strongest supported group + * + * @param dh_group configured DH group + * @param dh_groups returns set of available DH groups + */ +bool pts_dh_group_update(char *dh_group, pts_dh_group_t *dh_groups); + +/** + * Select the strongest supported Diffie-Hellman group + * among a set of offered DH groups + * + * @param supported_groups set of supported DH groups + * @param offered_groups set of offered DH groups + * @return selected DH group + */ +pts_dh_group_t pts_dh_group_select(pts_dh_group_t supported_groups, + pts_dh_group_t offered_groups); + +/** + * Convert pts_dh_group_t to diffie_hellman_group_t + * + * @param dh_group PTS DH group type + * @return IKE DH group type + */ +diffie_hellman_group_t pts_dh_group_to_ike(pts_dh_group_t dh_group); + +#endif /** PTS_DH_GROUP_H_ @}*/ diff --git a/src/libimcv/pts/pts_error.c b/src/libimcv/pts/pts_error.c new file mode 100644 index 000000000..1e79689f9 --- /dev/null +++ b/src/libimcv/pts/pts_error.c @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_error.h" + +#include <bio/bio_writer.h> +#include <ietf/ietf_attr_pa_tnc_error.h> + +ENUM(pts_error_code_names, TCG_PTS_RESERVED_ERROR, TCG_PTS_UNABLE_DET_PCR, + "Reserved Error", + "Hash Algorithm Not Supported", + "Invalid Path", + "File Not Found", + "Registry Not Supported", + "Registry Key Not Found", + "D-H Group Not Supported", + "DH-PN Nonce Not Acceptable", + "Invalid Functional Name Family", + "TPM Version Information Unavailable", + "Invalid File Pathname Delimiter", + "PTS Operation Not Supported", + "Unable To Update Reference Manifest", + "Unable To Perform Local Validation", + "Unable To Collect Current Evidence", + "Unable To Determine Transitive Trust Chain", + "Unable To Determine PCR" +); + +/** + * Described in header. + */ +pa_tnc_attr_t* pts_hash_alg_error_create(pts_meas_algorithms_t algorithms) +{ + bio_writer_t *writer; + chunk_t msg_info; + pa_tnc_attr_t *attr; + pen_type_t error_code = { PEN_TCG, TCG_PTS_HASH_ALG_NOT_SUPPORTED }; + + writer = bio_writer_create(4); + writer->write_uint16(writer, 0x0000); + writer->write_uint16(writer, algorithms); + msg_info = writer->get_buf(writer); + attr = ietf_attr_pa_tnc_error_create(error_code, msg_info); + writer->destroy(writer); + + return attr; +} + +/** + * Described in header. + */ +pa_tnc_attr_t* pts_dh_group_error_create(pts_dh_group_t dh_groups) +{ + bio_writer_t *writer; + chunk_t msg_info; + pa_tnc_attr_t *attr; + pen_type_t error_code = { PEN_TCG, TCG_PTS_DH_GRPS_NOT_SUPPORTED }; + + writer = bio_writer_create(4); + writer->write_uint16(writer, 0x0000); + writer->write_uint16(writer, dh_groups); + msg_info = writer->get_buf(writer); + attr = ietf_attr_pa_tnc_error_create(error_code, msg_info); + writer->destroy(writer); + + return attr; +} + +/** + * Described in header. + */ +pa_tnc_attr_t* pts_dh_nonce_error_create(int min_nonce_len, int max_nonce_len) +{ + bio_writer_t *writer; + chunk_t msg_info; + pa_tnc_attr_t *attr; + pen_type_t error_code = { PEN_TCG, TCG_PTS_BAD_NONCE_LENGTH }; + + writer = bio_writer_create(4); + writer->write_uint16(writer, min_nonce_len); + writer->write_uint16(writer, max_nonce_len); + msg_info = writer->get_buf(writer); + attr = ietf_attr_pa_tnc_error_create(error_code, msg_info); + writer->destroy(writer); + + return attr; +} diff --git a/src/libimcv/pts/pts_error.h b/src/libimcv/pts/pts_error.h new file mode 100644 index 000000000..9a53abd98 --- /dev/null +++ b/src/libimcv/pts/pts_error.h @@ -0,0 +1,89 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_error pts_error + * @{ @ingroup pts + */ + +#ifndef PTS_ERROR_H_ +#define PTS_ERROR_H_ + +typedef enum pts_error_code_t pts_error_code_t; + +#include "pts_meas_algo.h" +#include "pts_dh_group.h" +#include "pa_tnc/pa_tnc_attr.h" + +#include <library.h> + +#define PTS_MIN_NONCE_LEN 17 +#define PTS_MAX_NONCE_LEN 0xffff + +/** + * PTS Attestation Error Codes + * see section 3.14.2 of PTS Protocol: Binding to TNC IF-M Specification + */ +enum pts_error_code_t { + TCG_PTS_RESERVED_ERROR = 0, + TCG_PTS_HASH_ALG_NOT_SUPPORTED = 1, + TCG_PTS_INVALID_PATH = 2, + TCG_PTS_FILE_NOT_FOUND = 3, + TCG_PTS_REG_NOT_SUPPORTED = 4, + TCG_PTS_REG_KEY_NOT_FOUND = 5, + TCG_PTS_DH_GRPS_NOT_SUPPORTED = 6, + TCG_PTS_BAD_NONCE_LENGTH = 7, + TCG_PTS_INVALID_NAME_FAM = 8, + TCG_PTS_TPM_VERS_NOT_SUPPORTED = 9, + TCG_PTS_INVALID_DELIMITER = 10, + TCG_PTS_OPERATION_NOT_SUPPORTED = 11, + TCG_PTS_RM_ERROR = 12, + TCG_PTS_UNABLE_LOCAL_VAL = 13, + TCG_PTS_UNABLE_CUR_EVID = 14, + TCG_PTS_UNABLE_DET_TTC = 15, + TCG_PTS_UNABLE_DET_PCR = 16, +}; + +/** + * enum name for pts_error_code_t. + */ +extern enum_name_t *pts_error_code_names; + +/** + * Creates a PTS Hash Algorithm Not Supported Error Attribute + * see section 4.2.2 of PTS Protocol: Binding to TNC IF-M Specification + * + * @param algorithms supported measurement hash algorithms + */ +pa_tnc_attr_t* pts_hash_alg_error_create(pts_meas_algorithms_t algorithms); + +/** + * Creates a PTS DH Group Not Supported Error Attribute + * see section 4.2.4 of PTS Protocol: Binding to TNC IF-M Specification + * + * @param dh_groups supported DH groups + */ +pa_tnc_attr_t* pts_dh_group_error_create(pts_dh_group_t dh_groups); + +/** + * Creates a PTS DH PN Nonce Not Supported Error Attribute + * see section 4.2.5 of PTS Protocol: Binding to TNC IF-M Specification + * + * @param min_nonce_len minimum nonce length + * @param max_nonce_len maximum nonce length + */ +pa_tnc_attr_t* pts_dh_nonce_error_create(int min_nonce_len, int max_nonce_len); + +#endif /** PTS_ERROR_H_ @}*/ diff --git a/src/libimcv/pts/pts_file_meas.c b/src/libimcv/pts/pts_file_meas.c new file mode 100644 index 000000000..478892aea --- /dev/null +++ b/src/libimcv/pts/pts_file_meas.c @@ -0,0 +1,414 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_file_meas.h" + +#include <collections/linked_list.h> +#include <utils/debug.h> + +#include <sys/stat.h> +#include <libgen.h> +#include <errno.h> + +typedef struct private_pts_file_meas_t private_pts_file_meas_t; + +/** + * Private data of a pts_file_meas_t object. + * + */ +struct private_pts_file_meas_t { + + /** + * Public pts_file_meas_t interface. + */ + pts_file_meas_t public; + + /** + * ID of PTS File Measurement Request + */ + u_int16_t request_id; + + /** + * List of File Measurements + */ + linked_list_t *list; +}; + +typedef struct entry_t entry_t; + +/** + * PTS File Measurement entry + */ +struct entry_t { + char *filename; + chunk_t measurement; +}; + +/** + * Free an entry_t object + */ +static void free_entry(entry_t *entry) +{ + if (entry) + { + free(entry->filename); + free(entry->measurement.ptr); + free(entry); + } +} + +METHOD(pts_file_meas_t, get_request_id, u_int16_t, + private_pts_file_meas_t *this) +{ + return this->request_id; +} + +METHOD(pts_file_meas_t, get_file_count, int, + private_pts_file_meas_t *this) +{ + return this->list->get_count(this->list); +} + +METHOD(pts_file_meas_t, add, void, + private_pts_file_meas_t *this, char *filename, chunk_t measurement) +{ + entry_t *entry; + + entry = malloc_thing(entry_t); + entry->filename = strdup(filename); + entry->measurement = chunk_clone(measurement); + + this->list->insert_last(this->list, entry); +} + +/** + * Enumerate file measurement entries + */ +static bool entry_filter(void *null, entry_t **entry, char **filename, + void *i2, chunk_t *measurement) +{ + *filename = (*entry)->filename; + *measurement = (*entry)->measurement; + return TRUE; +} + +METHOD(pts_file_meas_t, create_enumerator, enumerator_t*, + private_pts_file_meas_t *this) +{ + return enumerator_create_filter(this->list->create_enumerator(this->list), + (void*)entry_filter, NULL, NULL); +} + +METHOD(pts_file_meas_t, check, bool, + private_pts_file_meas_t *this, pts_database_t *pts_db, int pid, + pts_meas_algorithms_t algo) +{ + enumerator_t *enumerator, *e; + entry_t *entry; + chunk_t hash; + int count_ok = 0, count_not_found = 0, count_differ = 0; + status_t status; + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + status = NOT_FOUND; + + e = pts_db->create_file_meas_enumerator(pts_db, pid, algo, + entry->filename); + if (e) + { + while (e->enumerate(e, &hash)) + { + if (chunk_equals(entry->measurement, hash)) + { + status = SUCCESS; + break; + } + else + { + status = VERIFY_ERROR; + } + } + e->destroy(e); + } + else + { + status = FAILED; + } + + switch (status) + { + case SUCCESS: + DBG3(DBG_PTS, " %#B for '%s' is ok", &entry->measurement, + entry->filename); + count_ok++; + break; + case NOT_FOUND: + DBG2(DBG_PTS, " %#B for '%s' not found", &entry->measurement, + entry->filename); + count_not_found++; + break; + case VERIFY_ERROR: + DBG1(DBG_PTS, " %#B for '%s' differs", &entry->measurement, + entry->filename); + count_differ++; + break; + case FAILED: + default: + DBG1(DBG_PTS, " %#B for '%s' failed", &entry->measurement, + entry->filename); + } + } + enumerator->destroy(enumerator); + + DBG1(DBG_PTS, "%d measurements, %d ok, %d not found, %d differ", + this->list->get_count(this->list), + count_ok, count_not_found, count_differ); + return TRUE; +} + +METHOD(pts_file_meas_t, verify, bool, + private_pts_file_meas_t *this, enumerator_t *e_hash, bool is_dir) +{ + int fid, fid_last = 0; + char *filename; + chunk_t measurement; + entry_t *entry; + enumerator_t *enumerator = NULL; + bool found = FALSE, match = FALSE, success = TRUE; + + while (e_hash->enumerate(e_hash, &fid, &filename, &measurement)) + { + if (fid != fid_last) + { + if (found && !match) + { + /* no matching hash value found for last filename */ + success = FALSE; + DBG1(DBG_PTS, " %#B for '%s' is incorrect", + &entry->measurement, entry->filename); + enumerator->destroy(enumerator); + } + + /* get a new filename from the database */ + found = FALSE; + match = FALSE; + fid_last = fid; + + /** + * check if we find an entry for this filename + * in the PTS measurement list + */ + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + if (!is_dir || streq(filename, entry->filename)) + { + found = TRUE; + break; + } + } + + /* no PTS measurement returned for this filename */ + if (!found) + { + success = FALSE; + DBG1(DBG_PTS, " no measurement found for '%s'", filename); + enumerator->destroy(enumerator); + } + } + + if (found && !match) + { + if (chunk_equals(measurement, entry->measurement)) + { + match = TRUE; + DBG2(DBG_PTS, " %#B for '%s' is ok", + &entry->measurement, entry->filename); + enumerator->destroy(enumerator); + } + } + } + + if (found && !match) + { + /* no matching hash value found for the very last filename */ + success = FALSE; + DBG1(DBG_PTS, " %#B for '%s' is incorrect", + &entry->measurement, entry->filename); + enumerator->destroy(enumerator); + } + + return success; +} + +METHOD(pts_file_meas_t, destroy, void, + private_pts_file_meas_t *this) +{ + this->list->destroy_function(this->list, (void *)free_entry); + free(this); +} + +/** + * See header + */ +pts_file_meas_t *pts_file_meas_create(u_int16_t request_id) +{ + private_pts_file_meas_t *this; + + INIT(this, + .public = { + .get_request_id = _get_request_id, + .get_file_count = _get_file_count, + .add = _add, + .create_enumerator = _create_enumerator, + .check = _check, + .verify = _verify, + .destroy = _destroy, + }, + .request_id = request_id, + .list = linked_list_create(), + ); + + return &this->public; +} + +/** + * Hash a file with a given absolute pathname + */ +static bool hash_file(hasher_t *hasher, char *pathname, u_char *hash) +{ + u_char buffer[4096]; + size_t bytes_read; + bool success = TRUE; + FILE *file; + + file = fopen(pathname, "rb"); + if (!file) + { + DBG1(DBG_PTS," file '%s' can not be opened, %s", pathname, + strerror(errno)); + return FALSE; + } + while (TRUE) + { + bytes_read = fread(buffer, 1, sizeof(buffer), file); + if (bytes_read > 0) + { + if (!hasher->get_hash(hasher, chunk_create(buffer, bytes_read), NULL)) + { + DBG1(DBG_PTS, " hasher increment error"); + success = FALSE; + break; + } + } + else + { + if (!hasher->get_hash(hasher, chunk_empty, hash)) + { + DBG1(DBG_PTS, " hasher finalize error"); + success = FALSE; + } + break; + } + } + fclose(file); + + return success; +} + +/** + * See header + */ +pts_file_meas_t *pts_file_meas_create_from_path(u_int16_t request_id, + char *pathname, bool is_dir, bool use_rel_name, + pts_meas_algorithms_t alg) +{ + private_pts_file_meas_t *this; + hash_algorithm_t hash_alg; + hasher_t *hasher; + u_char hash[HASH_SIZE_SHA384]; + chunk_t measurement; + char* filename; + bool success = TRUE; + + /* Create a hasher and a hash measurement buffer */ + hash_alg = pts_meas_algo_to_hash(alg); + hasher = lib->crypto->create_hasher(lib->crypto, hash_alg); + if (!hasher) + { + DBG1(DBG_PTS, "hasher %N not available", hash_algorithm_names, hash_alg); + return NULL; + } + measurement = chunk_create(hash, hasher->get_hash_size(hasher)); + this = (private_pts_file_meas_t*)pts_file_meas_create(request_id); + + if (is_dir) + { + enumerator_t *enumerator; + char *rel_name, *abs_name; + struct stat st; + + enumerator = enumerator_create_directory(pathname); + if (!enumerator) + { + DBG1(DBG_PTS, " directory '%s' can not be opened, %s", pathname, + strerror(errno)); + success = FALSE; + goto end; + } + while (enumerator->enumerate(enumerator, &rel_name, &abs_name, &st)) + { + /* measure regular files only */ + if (S_ISREG(st.st_mode) && *rel_name != '.') + { + if (!hash_file(hasher, abs_name, hash)) + { + continue; + } + filename = use_rel_name ? rel_name : abs_name; + DBG2(DBG_PTS, " %#B for '%s'", &measurement, filename); + add(this, filename, measurement); + } + } + enumerator->destroy(enumerator); + } + else + { + if (!hash_file(hasher, pathname, hash)) + { + success = FALSE; + goto end; + } + filename = use_rel_name ? path_basename(pathname) : strdup(pathname); + DBG2(DBG_PTS, " %#B for '%s'", &measurement, filename); + add(this, filename, measurement); + free(filename); + } + +end: + hasher->destroy(hasher); + if (success) + { + return &this->public; + } + else + { + destroy(this); + return NULL; + } +} diff --git a/src/libimcv/pts/pts_file_meas.h b/src/libimcv/pts/pts_file_meas.h new file mode 100644 index 000000000..4bf28e280 --- /dev/null +++ b/src/libimcv/pts/pts_file_meas.h @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_file_meas pts_file_meas + * @{ @ingroup pts + */ + +#ifndef PTS_FILE_MEAS_H_ +#define PTS_FILE_MEAS_H_ + +#include "pts/pts_database.h" + +#include <library.h> + +typedef struct pts_file_meas_t pts_file_meas_t; + +/** + * Class storing PTS File Measurements + */ +struct pts_file_meas_t { + + /** + * Get the ID of the PTS File Measurement Request + * + * @return ID of PTS File Measurement Request + */ + u_int16_t (*get_request_id)(pts_file_meas_t *this); + + /** + * Get the number of measured files + * + * @return Number of measured files + */ + int (*get_file_count)(pts_file_meas_t *this); + + /** + * Add a PTS File Measurement + * + * @param filename Name of measured file or directory + * @param measurement PTS Measurement hash + */ + void (*add)(pts_file_meas_t *this, char *filename, chunk_t measurement); + + /** + * Create a PTS File Measurement enumerator + * + * @return Enumerator returning filename and measurement + */ + enumerator_t* (*create_enumerator)(pts_file_meas_t *this); + + /** + * Check PTS File Measurements against reference value in the database + * + * @param db PTS Measurement database + * @param pid Primary key of software product in database + * @param algo PTS Measurement algorithm used + * @return TRUE if all measurements agreed + */ + bool (*check)(pts_file_meas_t *this, pts_database_t *db, int pid, + pts_meas_algorithms_t algo); + + /** + * Verify stored hashes against PTS File Measurements + * + * @param e_hash Hash enumerator + * @param is_dir TRUE for directory contents hashes + * @return TRUE if all hashes match a measurement + */ + bool (*verify)(pts_file_meas_t *this, enumerator_t *e_hash, bool is_dir); + + /** + * Destroys a pts_file_meas_t object. + */ + void (*destroy)(pts_file_meas_t *this); + +}; + +/** + * Creates a pts_file_meas_t object + * + * @param request_id ID of PTS File Measurement Request + */ +pts_file_meas_t* pts_file_meas_create(u_int16_t request_id); + +/** + * Creates a pts_file_meas_t object measuring a file/directory + * + * @param request_id ID of PTS File Measurement Request + * @param pathname Absolute file or directory pathname + * @param is_dir TRUE if directory path + * @param use_rel_name TRUE if relative filenames are to be used + * @param alg PTS hash measurement algorithm to be used + */ +pts_file_meas_t* pts_file_meas_create_from_path(u_int16_t request_id, + char* pathname, bool is_dir, bool use_rel_name, + pts_meas_algorithms_t alg); + +#endif /** PTS_FILE_MEAS_H_ @}*/ diff --git a/src/libimcv/pts/pts_file_meta.c b/src/libimcv/pts/pts_file_meta.c new file mode 100644 index 000000000..9cca0a5a5 --- /dev/null +++ b/src/libimcv/pts/pts_file_meta.c @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_file_meta.h" + +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_pts_file_meta_t private_pts_file_meta_t; + +/** + * Private data of a pts_file_meta_t object. + * + */ +struct private_pts_file_meta_t { + + /** + * Public pts_file_meta_t interface. + */ + pts_file_meta_t public; + + /** + * List of File Metadata + */ + linked_list_t *list; +}; + +/** + * Free an pts_file_metadata_t object + */ +static void free_entry(pts_file_metadata_t *entry) +{ + if (entry) + { + free(entry->filename); + free(entry); + } +} + +METHOD(pts_file_meta_t, get_file_count, int, + private_pts_file_meta_t *this) +{ + return this->list->get_count(this->list); +} + +METHOD(pts_file_meta_t, add, void, + private_pts_file_meta_t *this, pts_file_metadata_t *metadata) +{ + this->list->insert_last(this->list, metadata); +} + +METHOD(pts_file_meta_t, create_enumerator, enumerator_t*, + private_pts_file_meta_t *this) +{ + return this->list->create_enumerator(this->list); +} + +METHOD(pts_file_meta_t, destroy, void, + private_pts_file_meta_t *this) +{ + this->list->destroy_function(this->list, (void *)free_entry); + free(this); +} + +/** + * See header + */ +pts_file_meta_t *pts_file_meta_create() +{ + private_pts_file_meta_t *this; + + INIT(this, + .public = { + .get_file_count = _get_file_count, + .add = _add, + .create_enumerator = _create_enumerator, + .destroy = _destroy, + }, + .list = linked_list_create(), + ); + + return &this->public; +} + diff --git a/src/libimcv/pts/pts_file_meta.h b/src/libimcv/pts/pts_file_meta.h new file mode 100644 index 000000000..3f1813306 --- /dev/null +++ b/src/libimcv/pts/pts_file_meta.h @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_file_meta pts_file_meta + * @{ @ingroup pts + */ + +#ifndef PTS_FILE_META_H_ +#define PTS_FILE_META_H_ + +#include "pts_file_type.h" + +#include <time.h> +#include <library.h> + +typedef struct pts_file_meta_t pts_file_meta_t; +typedef struct pts_file_metadata_t pts_file_metadata_t; + +/** + * Structure holding file metadata + */ +struct pts_file_metadata_t { + pts_file_type_t type; + u_int64_t filesize; + u_int64_t created; + u_int64_t modified; + u_int64_t accessed; + u_int64_t owner; + u_int64_t group; + char *filename; +}; + +/** + * Class storing PTS File Metadata + */ +struct pts_file_meta_t { + + /** + * Get the number of files + * + * @return Number of files + */ + int (*get_file_count)(pts_file_meta_t *this); + + /** + * Add PTS File Metadata + * + * @param filename Name of measured file or directory + * @param metadata File metadata + */ + void (*add)(pts_file_meta_t *this, pts_file_metadata_t *metadata); + + /** + * Create a PTS File Metadata enumerator + * + * @return Enumerator returning file metadata + */ + enumerator_t* (*create_enumerator)(pts_file_meta_t *this); + + /** + * Destroys a pts_file_meta_t object. + */ + void (*destroy)(pts_file_meta_t *this); + +}; + +/** + * Creates a pts_file_meta_t object + */ +pts_file_meta_t* pts_file_meta_create(); + +#endif /** PTS_FILE_MEAS_H_ @}*/ diff --git a/src/libimcv/pts/pts_file_type.c b/src/libimcv/pts/pts_file_type.c new file mode 100644 index 000000000..fe849dea4 --- /dev/null +++ b/src/libimcv/pts/pts_file_type.c @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2011 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_file_type.h" + +ENUM(pts_file_type_names, PTS_FILE_OTHER, PTS_FILE_SOCKET, + "Other", + "FIFO", + "Character-Special", + "Reserved-3", + "Directory", + "Reserved-5", + "Block-Special", + "Reserved-7", + "Regular", + "Reserved-9", + "Symbolic-Link", + "Reserved-11", + "Socket" +); + diff --git a/src/libimcv/pts/pts_file_type.h b/src/libimcv/pts/pts_file_type.h new file mode 100644 index 000000000..c1d236888 --- /dev/null +++ b/src/libimcv/pts/pts_file_type.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_file_type pts_file_type + * @{ @ingroup pts + */ + +#ifndef PTS_FILE_TYPE_H_ +#define PTS_FILE_TYPE_H_ + +#include <library.h> + +typedef enum pts_file_type_t pts_file_type_t; + +/** + * PTS File Type + * see section 3.17.3 of PTS Protocol: Binding to TNC IF-M Specification + */ +enum pts_file_type_t { + /** Either unknown or different from standardized types */ + PTS_FILE_OTHER = 0x0000, + /** Pipe communication file */ + PTS_FILE_FIFO = 0x0001, + /** Character special file */ + PTS_FILE_CHAR_SPEC = 0x0002, + /** Reserved */ + PTS_FILE_RESERVED_3 = 0x0003, + /** Directory */ + PTS_FILE_DIRECTORY = 0x0004, + /** Reserved */ + PTS_FILE_RESERVED_5 = 0x0005, + /** Block special file */ + PTS_FILE_BLOCK_SPEC = 0x0006, + /** Reserved */ + PTS_FILE_RESERVED_7 = 0x0007, + /** Regular file */ + PTS_FILE_REGULAR = 0x0008, + /** Reserved */ + PTS_FILE_RESERVED_9 = 0x0009, + /** Symbolic link */ + PTS_FILE_SYM_LINK = 0x000A, + /** Reserved */ + PTS_FILE_RESERVED_11 = 0x000B, + /** Socket communication special file */ + PTS_FILE_SOCKET = 0x000C, +}; + +extern enum_name_t *pts_file_type_names; + +#endif /** PTS_FILE_TYPE_H_ @}*/ diff --git a/src/libimcv/pts/pts_ima_bios_list.c b/src/libimcv/pts/pts_ima_bios_list.c new file mode 100644 index 000000000..5051b6c2d --- /dev/null +++ b/src/libimcv/pts/pts_ima_bios_list.c @@ -0,0 +1,294 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_ima_bios_list.h" + +#include <utils/debug.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +typedef struct private_pts_ima_bios_list_t private_pts_ima_bios_list_t; +typedef struct bios_entry_t bios_entry_t; +typedef enum event_type_t event_type_t; + +enum event_type_t { + /* BIOS Events (TCG PC Client Specification for Conventional BIOS 1.21) */ + EV_PREBOOT_CERT = 0x00000000, + EV_POST_CODE = 0x00000001, + EV_UNUSED = 0x00000002, + EV_NO_ACTION = 0x00000003, + EV_SEPARATOR = 0x00000004, + EV_ACTION = 0x00000005, + EV_EVENT_TAG = 0x00000006, + EV_S_CRTM_CONTENTS = 0x00000007, + EV_S_CRTM_VERSION = 0x00000008, + EV_CPU_MICROCODE = 0x00000009, + EV_PLATFORM_CONFIG_FLAGS = 0x0000000A, + EV_TABLE_OF_DEVICES = 0x0000000B, + EV_COMPACT_HASH = 0x0000000C, + EV_IPL = 0x0000000D, + EV_IPL_PARTITION_DATA = 0x0000000E, + EV_NONHOST_CODE = 0x0000000F, + EV_NONHOST_CONFIG = 0x00000010, + EV_NONHOST_INFO = 0x00000011, + EV_OMIT_BOOT_DEVICE_EVENTS = 0x00000012, + + /* EFI Events (TCG EFI Platform Specification 1.22) */ + EV_EFI_EVENT_BASE = 0x80000000, + EV_EFI_VARIABLE_DRIVER_CONFIG = 0x80000001, + EV_EFI_VARIABLE_BOOT = 0x80000002, + EV_EFI_BOOT_SERVICES_APPLICATION = 0x80000003, + EV_EFI_BOOT_SERVICES_DRIVER = 0x80000004, + EV_EFI_RUNTIME_SERVICES_DRIVER = 0x80000005, + EV_EFI_GPT_EVENT = 0x80000006, + EV_EFI_ACTION = 0x80000007, + EV_EFI_PLATFORM_FIRMWARE_BLOB = 0x80000008, + EV_EFI_HANDOFF_TABLES = 0x80000009, + + EV_EFI_VARIABLE_AUTHORITY = 0x800000E0 +}; + +ENUM_BEGIN(event_type_names, EV_PREBOOT_CERT, EV_OMIT_BOOT_DEVICE_EVENTS, + "Preboot Cert", + "POST Code", + "Unused", + "No Action", + "Separator", + "Action", + "Event Tag", + "S-CRTM Contents", + "S-CRTM Version", + "CPU Microcode", + "Platform Config Flags", + "Table of Devices", + "Compact Hash", + "IPL", + "IPL Partition Data", + "Nonhost Code", + "Nonhost Config", + "Nonhost Info", + "Omit Boot Device Events" +); + +ENUM_NEXT(event_type_names, EV_EFI_EVENT_BASE, EV_EFI_HANDOFF_TABLES, + EV_OMIT_BOOT_DEVICE_EVENTS, + "EFI Event Base", + "EFI Variable Driver Config", + "EFI Variable Boot", + "EFI Boot Services Application", + "EFI Boot Services Driver", + "EFI Runtime Services Driver", + "EFI GPT Event", + "EFI Action", + "EFI Platform Firmware Blob", + "EFI Handoff Tables" +); +ENUM_NEXT(event_type_names, EV_EFI_VARIABLE_AUTHORITY, EV_EFI_VARIABLE_AUTHORITY, + EV_EFI_HANDOFF_TABLES, + "EFI Variable Authority" +); +ENUM_END(event_type_names, EV_EFI_VARIABLE_AUTHORITY); + +/** + * Private data of a pts_ima_bios_list_t object. + * + */ +struct private_pts_ima_bios_list_t { + + /** + * Public pts_ima_bios_list_t interface. + */ + pts_ima_bios_list_t public; + + /** + * List of BIOS measurement entries + */ + linked_list_t *list; + + /** + * Time when BIOS measurements were taken + */ + time_t creation_time; + +}; + +/** + * Linux IMA BIOS measurement entry + */ +struct bios_entry_t { + + /** + * PCR register + */ + uint32_t pcr; + + /** + * SHA1 measurement hash + */ + chunk_t measurement; +}; + +/** + * Free a bios_entry_t object + */ +static void free_bios_entry(bios_entry_t *this) +{ + free(this->measurement.ptr); + free(this); +} + +METHOD(pts_ima_bios_list_t, get_time, time_t, + private_pts_ima_bios_list_t *this) +{ + return this->creation_time; +} + +METHOD(pts_ima_bios_list_t, get_count, int, + private_pts_ima_bios_list_t *this) +{ + return this->list->get_count(this->list); +} + +METHOD(pts_ima_bios_list_t, get_next, status_t, + private_pts_ima_bios_list_t *this, uint32_t *pcr, chunk_t *measurement) +{ + bios_entry_t *entry; + status_t status; + + status = this->list->remove_first(this->list, (void**)&entry); + *pcr = entry->pcr; + *measurement = entry->measurement; + free(entry); + + return status; +} + +METHOD(pts_ima_bios_list_t, destroy, void, + private_pts_ima_bios_list_t *this) +{ + this->list->destroy_function(this->list, (void *)free_bios_entry); + free(this); +} + +/** + * See header + */ +pts_ima_bios_list_t* pts_ima_bios_list_create(char *file) +{ + private_pts_ima_bios_list_t *this; + uint32_t pcr, event_type, event_len, seek_len; + uint32_t buf_len = 2048; + uint8_t event_buf[buf_len]; + chunk_t event; + bios_entry_t *entry; + struct stat st; + ssize_t res; + int fd; + + fd = open(file, O_RDONLY); + if (fd == -1) + { + DBG1(DBG_PTS, "opening '%s' failed: %s", file, strerror(errno)); + return NULL; + } + + if (fstat(fd, &st) == -1) + { + DBG1(DBG_PTS, "getting statistics of '%s' failed: %s", file, + strerror(errno)); + close(fd); + return FALSE; + } + + INIT(this, + .public = { + .get_time = _get_time, + .get_count = _get_count, + .get_next = _get_next, + .destroy = _destroy, + }, + .creation_time = st.st_ctime, + .list = linked_list_create(), + ); + + DBG2(DBG_PTS, "PCR Event Type (Size)"); + while (TRUE) + { + res = read(fd, &pcr, 4); + if (res == 0) + { + DBG2(DBG_PTS, "loaded bios measurements '%s' (%d entries)", + file, this->list->get_count(this->list)); + close(fd); + return &this->public; + } + + entry = malloc_thing(bios_entry_t); + entry->pcr = pcr; + entry->measurement = chunk_alloc(HASH_SIZE_SHA1); + + if (res != 4) + { + break; + } + if (read(fd, &event_type, 4) != 4) + { + break; + } + if (read(fd, entry->measurement.ptr, HASH_SIZE_SHA1) != HASH_SIZE_SHA1) + { + break; + } + if (read(fd, &event_len, 4) != 4) + { + break; + } + DBG2(DBG_PTS, "%2u %N (%u bytes)", pcr, event_type_names, event_type, + event_len); + + seek_len = (event_len > buf_len) ? event_len - buf_len : 0; + event_len -= seek_len; + + if (read(fd, event_buf, event_len) != event_len) + { + break; + } + event = chunk_create(event_buf, event_len); + DBG3(DBG_PTS,"%B", &event); + + if (event_type == EV_ACTION || event_type == EV_EFI_ACTION) + { + DBG2(DBG_PTS, " '%.*s'", event_len, event_buf); + } + + if (seek_len > 0 && lseek(fd, seek_len, SEEK_CUR) == -1) + { + break; + } + this->list->insert_last(this->list, entry); + } + + DBG1(DBG_PTS, "loading bios measurements '%s' failed: %s", file, + strerror(errno)); + free_bios_entry(entry); + close(fd); + destroy(this); + + return NULL; +} diff --git a/src/libimcv/pts/pts_ima_bios_list.h b/src/libimcv/pts/pts_ima_bios_list.h new file mode 100644 index 000000000..ad162e15a --- /dev/null +++ b/src/libimcv/pts/pts_ima_bios_list.h @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_ima_bios_list pts_ima_bios_list + * @{ @ingroup pts + */ + +#ifndef PTS_IMA_BIOS_LIST_H_ +#define PTS_IMA_BIOS_LIST_H_ + +#include <time.h> + +#include <library.h> + +typedef struct pts_ima_bios_list_t pts_ima_bios_list_t; + +/** + * Class retrieving Linux IMA BIOS measurements + * + */ +struct pts_ima_bios_list_t { + + /** + * Get the time the BIOS measurements were taken + * + * @return Measurement time + */ + time_t (*get_time)(pts_ima_bios_list_t *this); + + /** + * Get the number of non-processed BIOS measurements + * + * @return Number of measurements left + */ + int (*get_count)(pts_ima_bios_list_t *this); + + /** + * Get the next BIOS measurement and remove it from the list + * + * @param pcr PCR where the measurement was extended into + * @param measurement Measurement hash + * @return Return code + */ + status_t (*get_next)(pts_ima_bios_list_t *this, uint32_t *pcr, + chunk_t *measurement); + + /** + * Destroys a pts_ima_bios_list_t object. + */ + void (*destroy)(pts_ima_bios_list_t *this); + +}; + +/** + * Create a PTS IMA BIOS measurement object + * + * @param file Pathname pointing to the BIOS measurements + */ +pts_ima_bios_list_t* pts_ima_bios_list_create(char *file); + +#endif /** PTS_IMA_BIOS_LIST_H_ @}*/ diff --git a/src/libimcv/pts/pts_ima_event_list.c b/src/libimcv/pts/pts_ima_event_list.c new file mode 100644 index 000000000..9bff4654b --- /dev/null +++ b/src/libimcv/pts/pts_ima_event_list.c @@ -0,0 +1,330 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_ima_event_list.h" + +#include <utils/debug.h> +#include <crypto/hashers/hasher.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +typedef struct private_pts_ima_event_list_t private_pts_ima_event_list_t; +typedef struct event_entry_t event_entry_t; + +#define IMA_TYPE_LEN 3 +#define IMA_NG_TYPE_LEN 6 +#define IMA_TYPE_LEN_MAX 10 +#define IMA_ALGO_DIGEST_LEN_MAX IMA_ALGO_LEN_MAX + HASH_SIZE_SHA512 + +/** + * Private data of a pts_ima_event_list_t object. + * + */ +struct private_pts_ima_event_list_t { + + /** + * Public pts_ima_event_list_t interface. + */ + pts_ima_event_list_t public; + + /** + * List of BIOS measurement entries + */ + linked_list_t *list; + + /** + * Time when IMA runtime file measurements were taken + */ + time_t creation_time; + +}; + +/** + * Linux IMA runtime file measurement entry + */ +struct event_entry_t { + + /** + * SHA1 measurement hash + */ + chunk_t measurement; + + /** + * IMA-NG hash algorithm name or NULL + */ + char *algo; + + /** + * IMA-NG eventname or IMA filename + */ + char *name; +}; + +/** + * Free an ima_event_t object + */ +static void free_event_entry(event_entry_t *this) +{ + free(this->measurement.ptr); + free(this->algo); + free(this->name); + free(this); +} + +METHOD(pts_ima_event_list_t, get_time, time_t, + private_pts_ima_event_list_t *this) +{ + return this->creation_time; +} + +METHOD(pts_ima_event_list_t, get_count, int, + private_pts_ima_event_list_t *this) +{ + return this->list->get_count(this->list); +} + +METHOD(pts_ima_event_list_t, get_next, status_t, + private_pts_ima_event_list_t *this, chunk_t *measurement, char **algo, + char **name) +{ + event_entry_t *entry; + status_t status; + + status = this->list->remove_first(this->list, (void**)&entry); + *measurement = entry->measurement; + *algo = entry->algo; + *name = entry->name; + free(entry); + + return status; +} + +METHOD(pts_ima_event_list_t, destroy, void, + private_pts_ima_event_list_t *this) +{ + this->list->destroy_function(this->list, (void *)free_event_entry); + free(this); +} + +/** + * See header + */ +pts_ima_event_list_t* pts_ima_event_list_create(char *file) +{ + private_pts_ima_event_list_t *this; + event_entry_t *entry; + uint32_t pcr, type_len, name_len, eventdata_len, algo_digest_len, algo_len; + char type[IMA_TYPE_LEN_MAX]; + char algo_digest[IMA_ALGO_DIGEST_LEN_MAX]; + char *pos, *error = ""; + struct stat st; + ssize_t res; + bool ima_ng; + int fd; + + fd = open(file, O_RDONLY); + if (fd == -1) + { + DBG1(DBG_PTS, "opening '%s' failed: %s", file, strerror(errno)); + return NULL; + } + + if (fstat(fd, &st) == -1) + { + DBG1(DBG_PTS, "getting statistics of '%s' failed: %s", file, + strerror(errno)); + close(fd); + return NULL; + } + + INIT(this, + .public = { + .get_time = _get_time, + .get_count = _get_count, + .get_next = _get_next, + .destroy = _destroy, + }, + .creation_time = st.st_ctime, + .list = linked_list_create(), + ); + + while (TRUE) + { + /* read 32 bit PCR number in host order */ + res = read(fd, &pcr, 4); + + /* exit if no more measurement data is available */ + if (res == 0) + { + DBG2(DBG_PTS, "loaded ima measurements '%s' (%d entries)", + file, this->list->get_count(this->list)); + close(fd); + return &this->public; + } + + /* create and initialize new IMA entry */ + entry = malloc_thing(event_entry_t); + entry->measurement = chunk_alloc(HASH_SIZE_SHA1); + entry->algo = NULL; + entry->name = NULL; + + if (res != 4 || pcr != IMA_PCR) + { + error = "invalid IMA PCR field"; + break; + } + + /* read 20 byte SHA-1 measurement digest */ + if (read(fd, entry->measurement.ptr, HASH_SIZE_SHA1) != HASH_SIZE_SHA1) + { + error = "invalid SHA-1 digest field"; + break; + } + + /* read 32 bit length of IMA type string in host order */ + if (read(fd, &type_len, 4) != 4 || type_len > IMA_TYPE_LEN_MAX) + { + error = "invalid IMA type field length"; + break; + } + + /* read and interpret IMA type string */ + if (read(fd, type, type_len) != type_len) + { + error = "invalid IMA type field"; + break; + } + if (type_len == IMA_NG_TYPE_LEN && + memeq(type, "ima-ng", IMA_NG_TYPE_LEN)) + { + ima_ng = TRUE; + } + else if (type_len == IMA_TYPE_LEN && + memeq(type, "ima", IMA_TYPE_LEN)) + { + ima_ng = FALSE; + } + else + { + error = "unknown IMA type"; + break; + } + + if (ima_ng) + { + /* read the 32 bit length of the event data in host order */ + if (read(fd, &eventdata_len, 4) != 4 || eventdata_len < 4) + { + error = "invalid event data field length"; + break; + } + + /* read the 32 bit length of the algo_digest string in host order */ + if (read(fd, &algo_digest_len, 4) != 4 || + algo_digest_len > IMA_ALGO_DIGEST_LEN_MAX || + eventdata_len < 4 + algo_digest_len + 4) + { + error = "invalid digest_with_algo field length"; + break; + } + + /* read the IMA algo_digest string */ + if (read(fd, algo_digest, algo_digest_len) != algo_digest_len) + { + error = "invalid digest_with_algo field"; + break; + } + + /* extract the hash algorithm name */ + pos = memchr(algo_digest, '\0', algo_digest_len); + if (!pos) + { + error = "no algo field"; + break; + } + algo_len = pos - algo_digest + 1; + + if (algo_len > IMA_ALGO_LEN_MAX || + algo_len < IMA_ALGO_LEN_MIN || *(pos - 1) != ':') + { + error = "invalid algo field"; + break; + } + + /* copy and store the hash algorithm name */ + entry->algo = malloc(algo_len); + memcpy(entry->algo, algo_digest, algo_len); + + /* read the 32 bit length of the event name in host order */ + if (read(fd, &name_len, 4) != 4 || + eventdata_len != 4 + algo_digest_len + 4 + name_len) + { + error = "invalid filename field length"; + break; + } + + /* allocate memory for the file name */ + entry->name = malloc(name_len); + + /* read file name */ + if (read(fd, entry->name, name_len) != name_len) + { + error = "invalid filename field"; + break; + } + } + else + { + /* skip SHA-1 digest of the file content */ + if (lseek(fd, HASH_SIZE_SHA1, SEEK_CUR) == -1) + { + break; + } + + /* read the 32 bit length of the file name in host order */ + if (read(fd, &name_len, 4) != 4 || name_len == UINT32_MAX) + { + error = "invalid filename field length"; + break; + } + + /* allocate memory for the file name */ + entry->name = malloc(name_len + 1); + + /* read file name */ + if (read(fd, entry->name, name_len) != name_len) + { + error = "invalid eventname field"; + break; + } + + /* terminate the file name with a nul character */ + entry->name[name_len] = '\0'; + } + + this->list->insert_last(this->list, entry); + } + + DBG1(DBG_PTS, "loading ima measurements '%s' failed: %s", file, error); + free_event_entry(entry); + close(fd); + destroy(this); + + return NULL; +} diff --git a/src/libimcv/pts/pts_ima_event_list.h b/src/libimcv/pts/pts_ima_event_list.h new file mode 100644 index 000000000..bf5478a51 --- /dev/null +++ b/src/libimcv/pts/pts_ima_event_list.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_ima_event_list pts_ima_event_list + * @{ @ingroup pts + */ + +#ifndef PTS_IMA_EVENT_LIST_H_ +#define PTS_IMA_EVENT_LIST_H_ + +#include <time.h> + +#include <library.h> + +typedef struct pts_ima_event_list_t pts_ima_event_list_t; + +#define IMA_PCR 10 +#define IMA_ALGO_LEN_MIN 5 +#define IMA_ALGO_LEN_MAX 8 + + +/** + * Class retrieving Linux IMA file measurements + * + */ +struct pts_ima_event_list_t { + + /** + * Get the time the file measurements were taken + * + * @return Measurement time + */ + time_t (*get_time)(pts_ima_event_list_t *this); + + /** + * Get the number of non-processed file measurements + * + * @return Number of measurements left + */ + int (*get_count)(pts_ima_event_list_t *this); + + /** + * Get the next file measurement and remove it from the list + * + * @param measurement Measurement hash + * @param algo Algorithm used to hash files + " @param name Event name (absolute filename or boot_aggregate) + * @return Return code + */ + status_t (*get_next)(pts_ima_event_list_t *this, chunk_t *measurement, + char **algo, char **name); + + /** + * Destroys a pts_ima_event_list_t object. + */ + void (*destroy)(pts_ima_event_list_t *this); + +}; + +/** + * Create a PTS IMA runtime file measurement object + * + * @param file Pathname pointing to the IMA runtme measurements + */ +pts_ima_event_list_t* pts_ima_event_list_create(char *file); + +#endif /** PTS_IMA_EVENT_LIST_H_ @}*/ diff --git a/src/libimcv/pts/pts_meas_algo.c b/src/libimcv/pts/pts_meas_algo.c new file mode 100644 index 000000000..c06371123 --- /dev/null +++ b/src/libimcv/pts/pts_meas_algo.c @@ -0,0 +1,176 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_meas_algo.h" + +#include <utils/debug.h> + +ENUM_BEGIN(pts_meas_algorithm_names, PTS_MEAS_ALGO_NONE, PTS_MEAS_ALGO_NONE, + "None"); +ENUM_NEXT(pts_meas_algorithm_names, PTS_MEAS_ALGO_SHA384, PTS_MEAS_ALGO_SHA384, + PTS_MEAS_ALGO_NONE, + "SHA384"); +ENUM_NEXT(pts_meas_algorithm_names, PTS_MEAS_ALGO_SHA256, PTS_MEAS_ALGO_SHA256, + PTS_MEAS_ALGO_SHA384, + "SHA256"); +ENUM_NEXT(pts_meas_algorithm_names, PTS_MEAS_ALGO_SHA1, PTS_MEAS_ALGO_SHA1, + PTS_MEAS_ALGO_SHA256, + "SHA1"); +ENUM_END(pts_meas_algorithm_names, PTS_MEAS_ALGO_SHA1); + +/** + * Described in header. + */ +bool pts_meas_algo_probe(pts_meas_algorithms_t *algorithms) +{ + enumerator_t *enumerator; + hash_algorithm_t hash_alg; + const char *plugin_name; + char format1[] = " %s PTS measurement algorithm %N[%s] available"; + char format2[] = " %s PTS measurement algorithm %N not available"; + + *algorithms = 0; + + enumerator = lib->crypto->create_hasher_enumerator(lib->crypto); + while (enumerator->enumerate(enumerator, &hash_alg, &plugin_name)) + { + if (hash_alg == HASH_SHA1) + { + *algorithms |= PTS_MEAS_ALGO_SHA1; + DBG2(DBG_PTS, format1, "mandatory", hash_algorithm_names, hash_alg, + plugin_name); + } + else if (hash_alg == HASH_SHA256) + { + *algorithms |= PTS_MEAS_ALGO_SHA256; + DBG2(DBG_PTS, format1, "mandatory", hash_algorithm_names, hash_alg, + plugin_name); + } + else if (hash_alg == HASH_SHA384) + { + *algorithms |= PTS_MEAS_ALGO_SHA384; + DBG2(DBG_PTS, format1, "optional ", hash_algorithm_names, hash_alg, + plugin_name); + } + } + enumerator->destroy(enumerator); + + if (!(*algorithms & PTS_MEAS_ALGO_SHA384)) + { + DBG1(DBG_PTS, format2, "optional ", hash_algorithm_names, HASH_SHA384); + } + if ((*algorithms & PTS_MEAS_ALGO_SHA1) && + (*algorithms & PTS_MEAS_ALGO_SHA256)) + { + return TRUE; + } + if (!(*algorithms & PTS_MEAS_ALGO_SHA1)) + { + DBG1(DBG_PTS, format2, "mandatory", hash_algorithm_names, HASH_SHA1); + } + if (!(*algorithms & PTS_MEAS_ALGO_SHA256)) + { + DBG1(DBG_PTS, format2, "mandatory", hash_algorithm_names, HASH_SHA256); + } + return FALSE; +} + +/** + * Described in header. + */ +bool pts_meas_algo_update(char *hash_alg, pts_meas_algorithms_t *algorithms) +{ + if (strcaseeq(hash_alg, "sha384") || strcaseeq(hash_alg, "sha2_384")) + { + /* nothing to update, all algorithms are supported */ + return TRUE; + } + if (strcaseeq(hash_alg, "sha256") || strcaseeq(hash_alg, "sha2_256")) + { + /* remove SHA384algorithm */ + *algorithms &= ~PTS_MEAS_ALGO_SHA384; + return TRUE; + } + if (strcaseeq(hash_alg, "sha1")) + { + /* remove SHA384 and SHA256 algorithms */ + *algorithms &= ~(PTS_MEAS_ALGO_SHA384 | PTS_MEAS_ALGO_SHA256); + return TRUE; + } + DBG1(DBG_PTS, "unknown hash algorithm '%s' configured", hash_alg); + return FALSE; +} + +/** + * Described in header. + */ +pts_meas_algorithms_t pts_meas_algo_select(pts_meas_algorithms_t supported_algos, + pts_meas_algorithms_t offered_algos) +{ + if ((supported_algos & PTS_MEAS_ALGO_SHA384) && + (offered_algos & PTS_MEAS_ALGO_SHA384)) + { + return PTS_MEAS_ALGO_SHA384; + } + if ((supported_algos & PTS_MEAS_ALGO_SHA256) && + (offered_algos & PTS_MEAS_ALGO_SHA256)) + { + return PTS_MEAS_ALGO_SHA256; + } + if ((supported_algos & PTS_MEAS_ALGO_SHA1) && + (offered_algos & PTS_MEAS_ALGO_SHA1)) + { + return PTS_MEAS_ALGO_SHA1; + } + return PTS_MEAS_ALGO_NONE; +} + +/** + * Described in header. + */ +hash_algorithm_t pts_meas_algo_to_hash(pts_meas_algorithms_t algorithm) +{ + switch (algorithm) + { + case PTS_MEAS_ALGO_SHA1: + return HASH_SHA1; + case PTS_MEAS_ALGO_SHA256: + return HASH_SHA256; + case PTS_MEAS_ALGO_SHA384: + return HASH_SHA384; + default: + return HASH_UNKNOWN; + } +} + +/** + * Described in header. + */ +size_t pts_meas_algo_hash_size(pts_meas_algorithms_t algorithm) +{ + switch (algorithm) + { + case PTS_MEAS_ALGO_SHA1: + return HASH_SIZE_SHA1; + case PTS_MEAS_ALGO_SHA256: + return HASH_SIZE_SHA256; + case PTS_MEAS_ALGO_SHA384: + return HASH_SIZE_SHA384; + case PTS_MEAS_ALGO_NONE: + default: + return 0; + } +} + diff --git a/src/libimcv/pts/pts_meas_algo.h b/src/libimcv/pts/pts_meas_algo.h new file mode 100644 index 000000000..eec7e7981 --- /dev/null +++ b/src/libimcv/pts/pts_meas_algo.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_meas_algo pts_meas_algo + * @{ @ingroup pts + */ + +#ifndef PTS_MEAS_ALGO_H_ +#define PTS_MEAS_ALGO_H_ + +#include <library.h> +#include <crypto/hashers/hasher.h> + +typedef enum pts_meas_algorithms_t pts_meas_algorithms_t; + +/** + * PTS Measurement Algorithms + */ +enum pts_meas_algorithms_t { + PTS_MEAS_ALGO_NONE = 0, + PTS_MEAS_ALGO_SHA384 = (1<<13), + PTS_MEAS_ALGO_SHA256 = (1<<14), + PTS_MEAS_ALGO_SHA1 = (1<<15) +}; + +/** + * enum name for pts_meas_algorithms_t. + */ +extern enum_name_t *pts_meas_algorithm_names; + +/** + * Diffie-Hellman Hash Algorithm Values + * see section 3.8.5 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |1|2|3|R|R|R|R|R|R|R|R|R|R|R|R|R| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +/** + * Probe available PTS measurement algorithms + * + * @param algorithms set of available algorithms + * @return TRUE if mandatory algorithms are available + */ +bool pts_meas_algo_probe(pts_meas_algorithms_t *algorithms); + +/** + * Update supported PTS measurement algorithms according to configuration + * + * sha1 : PTS_MEAS_ALGO_SHA1 + * sha256: PTS_MEAS_ALGO_SHA1 | PTS_MEAS_ALGO_SHA256 + * sha384: PTS_MEAS_ALGO_SHA1 | PTS_MEAS_ALGO_SHA256 | PTS_MEAS_ALGO_SHA384 + * + * The PTS-IMC is expected to select the strongest supported algorithm + * + * @param hash_alg configured hash algorithm + * @param algorithms returns set of available PTS measurement algorithms + */ +bool pts_meas_algo_update(char *hash_alg, pts_meas_algorithms_t *algorithms); + +/** + * Select the strongest PTS measurement algorithm + * among a set of offered PTS measurement algorithms + * + * @param supported_algos set of supported PTS measurement algorithms + * @param offered_algos set of offered PTS measurements algorithms + * @return selected algorithm + */ +pts_meas_algorithms_t pts_meas_algo_select(pts_meas_algorithms_t supported_algos, + pts_meas_algorithms_t offered_algos); + +/** + * Convert pts_meas_algorithms_t to hash_algorithm_t + * + * @param algorithm PTS measurement algorithm type + * @return libstrongswan hash algorithm type + */ +hash_algorithm_t pts_meas_algo_to_hash(pts_meas_algorithms_t algorithm); + +/** + * Return the hash size of a pts_meas_algorithm + * + * @param algorithm PTS measurement algorithm type + * @return hash size in bytes + */ +size_t pts_meas_algo_hash_size(pts_meas_algorithms_t algorithm); + +#endif /** PTS_MEAS_ALGO_H_ @}*/ diff --git a/src/libimcv/pts/pts_pcr.c b/src/libimcv/pts/pts_pcr.c new file mode 100644 index 000000000..0af93b608 --- /dev/null +++ b/src/libimcv/pts/pts_pcr.c @@ -0,0 +1,289 @@ +/* + * Copyright (C) 2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "pts_pcr.h" + +#include <utils/debug.h> + +#include <stdarg.h> + +typedef struct private_pts_pcr_t private_pts_pcr_t; + +/** + * Private data of a pts_pcr_t object. + * + */ +struct private_pts_pcr_t { + + /** + * Public pts_pcr_t interface. + */ + pts_pcr_t public; + + /** + * Shadow PCR registers + */ + chunk_t pcrs[PTS_PCR_MAX_NUM]; + + /** + * Number of extended PCR registers + */ + u_int32_t pcr_count; + + /** + * Highest extended PCR register + */ + u_int32_t pcr_max; + + /** + * Bitmap of extended PCR registers + */ + u_int8_t pcr_select[PTS_PCR_MAX_NUM / 8]; + + /** + * Hasher used to extend shadow PCRs + */ + hasher_t *hasher; + +}; + +METHOD(pts_pcr_t, get_count, u_int32_t, + private_pts_pcr_t *this) +{ + return this->pcr_count; +} + +METHOD(pts_pcr_t, select_pcr, bool, + private_pts_pcr_t *this, u_int32_t pcr) +{ + u_int32_t i, f; + + if (pcr >= PTS_PCR_MAX_NUM) + { + DBG1(DBG_PTS, "PCR %2u: number is larger than maximum of %u", + pcr, PTS_PCR_MAX_NUM-1); + return FALSE; + } + + /* Determine PCR selection flag */ + i = pcr / 8; + f = 1 << (pcr - 8*i); + + /* Has this PCR already been selected? */ + if (!(this->pcr_select[i] & f)) + { + this->pcr_select[i] |= f; + this->pcr_max = max(this->pcr_max, pcr); + this->pcr_count++; + } + return TRUE; +} + +METHOD(pts_pcr_t, get_selection_size, size_t, + private_pts_pcr_t *this) +{ + + /** + * A TPM v1.2 has 24 PCR Registers so the bitmask field length + * used by TrouSerS is at least 3 bytes + */ + return PTS_PCR_MAX_NUM / 8; +} + +typedef struct { + /** implements enumerator_t */ + enumerator_t public; + /** current PCR */ + u_int32_t pcr; + /** back reference to parent */ + private_pts_pcr_t *pcrs; +} pcr_enumerator_t; + +/** + * Implementation of enumerator.enumerate + */ +static bool pcr_enumerator_enumerate(pcr_enumerator_t *this, ...) +{ + u_int32_t *pcr, i, f; + va_list args; + + va_start(args, this); + pcr = va_arg(args, u_int32_t*); + va_end(args); + + while (this->pcr <= this->pcrs->pcr_max) + { + /* Determine PCR selection flag */ + i = this->pcr / 8; + f = 1 << (this->pcr - 8*i); + + /* Assign current PCR to output argument and increase */ + *pcr = this->pcr++; + + /* return if PCR is selected */ + if (this->pcrs->pcr_select[i] & f) + { + return TRUE; + } + } + return FALSE; +} + +METHOD(pts_pcr_t, create_enumerator, enumerator_t*, + private_pts_pcr_t *this) +{ + pcr_enumerator_t *enumerator; + + INIT(enumerator, + .public = { + .enumerate = (void*)pcr_enumerator_enumerate, + .destroy = (void*)free, + }, + .pcrs = this, + ); + + return (enumerator_t*)enumerator; +} + +METHOD(pts_pcr_t, get, chunk_t, + private_pts_pcr_t *this, u_int32_t pcr) +{ + return (pcr < PTS_PCR_MAX_NUM) ? this->pcrs[pcr] : chunk_empty; +} + +METHOD(pts_pcr_t, set, bool, + private_pts_pcr_t *this, u_int32_t pcr, chunk_t value) +{ + if (value.len != PTS_PCR_LEN) + { + DBG1(DBG_PTS, "PCR %2u: value does not fit", pcr); + return FALSE; + } + if (select_pcr(this, pcr)) + { + memcpy(this->pcrs[pcr].ptr, value.ptr, PTS_PCR_LEN); + return TRUE; + } + return FALSE; +} + +METHOD(pts_pcr_t, extend, chunk_t, + private_pts_pcr_t *this, u_int32_t pcr, chunk_t measurement) +{ + if (measurement.len != PTS_PCR_LEN) + { + DBG1(DBG_PTS, "PCR %2u: measurement does not fit", pcr); + return chunk_empty; + } + if (!select_pcr(this, pcr)) + { + return chunk_empty; + } + if (!this->hasher->get_hash(this->hasher, this->pcrs[pcr] , NULL) || + !this->hasher->get_hash(this->hasher, measurement, this->pcrs[pcr].ptr)) + { + DBG1(DBG_PTS, "PCR %2u: not extended due to hasher problem", pcr); + return chunk_empty; + } + return this->pcrs[pcr]; +} + +METHOD(pts_pcr_t, get_composite, chunk_t, + private_pts_pcr_t *this) +{ + chunk_t composite; + enumerator_t *enumerator; + u_int16_t selection_size; + u_int32_t pcr_field_size, pcr; + u_char *pos; + + selection_size = get_selection_size(this); + pcr_field_size = this->pcr_count * PTS_PCR_LEN; + + composite = chunk_alloc(2 + selection_size + 4 + pcr_field_size); + pos = composite.ptr; + htoun16(pos, selection_size); + pos += 2; + memcpy(pos, this->pcr_select, selection_size); + pos += selection_size; + htoun32(pos, pcr_field_size); + pos += 4; + + enumerator = create_enumerator(this); + while (enumerator->enumerate(enumerator, &pcr)) + { + memcpy(pos, this->pcrs[pcr].ptr, PTS_PCR_LEN); + pos += PTS_PCR_LEN; + } + enumerator->destroy(enumerator); + + DBG3(DBG_PTS, "constructed PCR Composite: %B", &composite); + return composite; +} + +METHOD(pts_pcr_t, destroy, void, + private_pts_pcr_t *this) +{ + u_int32_t i; + + for (i = 0; i < PTS_PCR_MAX_NUM; i++) + { + free(this->pcrs[i].ptr); + } + this->hasher->destroy(this->hasher); + free(this); +} + +/** + * See header + */ +pts_pcr_t *pts_pcr_create(void) +{ + private_pts_pcr_t *this; + hasher_t *hasher; + u_int32_t i; + + hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1); + if (!hasher) + { + DBG1(DBG_PTS, "%N hasher could not be created", + hash_algorithm_short_names, HASH_SHA1); + return NULL; + } + + INIT(this, + .public = { + .get_count = _get_count, + .select_pcr = _select_pcr, + .get_selection_size = _get_selection_size, + .create_enumerator = _create_enumerator, + .get = _get, + .set = _set, + .extend = _extend, + .get_composite = _get_composite, + .destroy = _destroy, + }, + .hasher = hasher, + ); + + for (i = 0; i < PTS_PCR_MAX_NUM; i++) + { + this->pcrs[i] = chunk_alloc(PTS_PCR_LEN); + memset(this->pcrs[i].ptr, 0x00, PTS_PCR_LEN); + } + + return &this->public; +} + diff --git a/src/libimcv/pts/pts_pcr.h b/src/libimcv/pts/pts_pcr.h new file mode 100644 index 000000000..f638b5ee4 --- /dev/null +++ b/src/libimcv/pts/pts_pcr.h @@ -0,0 +1,118 @@ +/* + * Copyright (C) 2012 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_pcr pts_pcr + * @{ @ingroup pts + */ + +#ifndef PTS_PCR_H_ +#define PTS_PCR_H_ + +typedef struct pts_pcr_t pts_pcr_t; + +#include <library.h> + +/** + * Maximum number of PCR's of TPM, TPM Spec 1.2 + */ +#define PTS_PCR_MAX_NUM 24 + +/** + * Number of bytes that can be saved in a PCR of TPM, TPM Spec 1.2 + */ +#define PTS_PCR_LEN 20 + +/** + * Class implementing a shadow PCR register set + */ +struct pts_pcr_t { + + /** + * Get the number of selected PCRs + * + * @return number of selected PCRs + */ + u_int32_t (*get_count)(pts_pcr_t *this); + + /** + * Mark a PCR as selected + * + * @param pcr index of PCR + * @return TRUE if PCR index exists + */ + bool (*select_pcr)(pts_pcr_t *this, u_int32_t pcr); + + /** + * Get the size of the selection field in bytes + * + * @return number of bytes written + */ + size_t (*get_selection_size)(pts_pcr_t *this); + + /** + * Create an enumerator over all selected PCR indexes + * + * @return enumerator + */ + enumerator_t* (*create_enumerator)(pts_pcr_t *this); + + /** + * Get the current content of a PCR + * + * @param pcr index of PCR + * @return content of PCR + */ + chunk_t (*get)(pts_pcr_t *this, u_int32_t pcr); + + /** + * Set the content of a PCR + * + * @param pcr index of PCR + * @param value new value of PCR + * @return TRUE if value could be set + */ + bool (*set)(pts_pcr_t *this, u_int32_t pcr, chunk_t value); + + /** + * Extend the content of a PCR + * + * @param pcr index of PCR + * @param measurement measurment value to be extended into PCR + * @return new content of PCR + */ + chunk_t (*extend)(pts_pcr_t *this, u_int32_t pcr, chunk_t measurement); + + /** + * Create a PCR Composite object over all selected PCRs + * + * @return PCR Composite object (must be freed) + */ + chunk_t (*get_composite)(pts_pcr_t *this); + + /** + + * Destroys a pts_pcr_t object. + */ + void (*destroy)(pts_pcr_t *this); + +}; + +/** + * Creates an pts_pcr_t object + */ +pts_pcr_t* pts_pcr_create(void); + +#endif /** PTS_PCR_H_ @}*/ diff --git a/src/libimcv/pts/pts_proto_caps.h b/src/libimcv/pts/pts_proto_caps.h new file mode 100644 index 000000000..4346d9b79 --- /dev/null +++ b/src/libimcv/pts/pts_proto_caps.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_proto_caps pts_proto_caps + * @{ @ingroup pts + */ + +#ifndef PTS_PROTO_CAPS_H_ +#define PTS_PROTO_CAPS_H_ + +typedef enum pts_proto_caps_flag_t pts_proto_caps_flag_t; + +#include <library.h> + +/** + * PTS Protocol Capabilities Flags + */ +enum pts_proto_caps_flag_t { + /** XML based Evidence Support flag */ + PTS_PROTO_CAPS_X = (1<<0), + /** Trusted Platform Evidence flag */ + PTS_PROTO_CAPS_T = (1<<1), + /** DH Nonce Negotiation Support flag */ + PTS_PROTO_CAPS_D = (1<<2), + /** Verification Support flag */ + PTS_PROTO_CAPS_V = (1<<3), + /** Current (In-Memory) Evidence Support flag */ + PTS_PROTO_CAPS_C = (1<<4), +}; + +#endif /** PTS_PROTO_CAPS_H_ @}*/ diff --git a/src/libimcv/pts/pts_req_func_comp_evid.h b/src/libimcv/pts/pts_req_func_comp_evid.h new file mode 100644 index 000000000..bbf5bbf5b --- /dev/null +++ b/src/libimcv/pts/pts_req_func_comp_evid.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_req_func_comp_evid pts_req_func_comp_evid + * @{ @ingroup pts + */ + +#ifndef PTS_REQ_FUNC_COMP_EVID_H_ +#define PTS_REQ_FUNC_COMP_EVID_H_ + +typedef enum pts_req_func_comp_evid_t pts_req_func_comp_evid_t; + +#include <library.h> + +/** + * PTS Request Functional Component Evidence Flags + */ +enum pts_req_func_comp_evid_t { + /** Transitive Trust Chain flag */ + PTS_REQ_FUNC_COMP_EVID_TTC = (1<<7), + /** Verify Component flag */ + PTS_REQ_FUNC_COMP_EVID_VER = (1<<6), + /** Current Evidence flag */ + PTS_REQ_FUNC_COMP_EVID_CURR = (1<<5), + /** PCR Information flag */ + PTS_REQ_FUNC_COMP_EVID_PCR = (1<<4), +}; + +#endif /** PTS_FUNCT_COMP_EVID_REQ_H_ @}*/ diff --git a/src/libimcv/pts/pts_simple_evid_final.h b/src/libimcv/pts/pts_simple_evid_final.h new file mode 100644 index 000000000..0c8dea0cc --- /dev/null +++ b/src/libimcv/pts/pts_simple_evid_final.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pts_simple_evid_final pts_rsimple_evid_final + * @{ @ingroup pts + */ + +#ifndef PTS_SIMPLE_EVID_FINAL_H_ +#define PTS_SIMPLE_EVID_FINAL_H_ + +typedef enum pts_simple_evid_final_flag_t pts_simple_evid_final_flag_t; + +#include <library.h> + +/** + * PTS Simple Evidence Final Flags + */ +enum pts_simple_evid_final_flag_t { + /** TPM PCR Composite and TPM Quote Signature not included */ + PTS_SIMPLE_EVID_FINAL_NO = 0x00, + /** TPM PCR Composite and TPM Quote Signature included + * using TPM_QUOTE_INFO */ + PTS_SIMPLE_EVID_FINAL_QUOTE_INFO = 0x40, + /** TPM PCR Composite and TPM Quote Signature included + * using TPM_QUOTE_INFO2, TPM_CAP_VERSION_INFO not appended */ + PTS_SIMPLE_EVID_FINAL_QUOTE_INFO2 = 0x80, + /** TPM PCR Composite and TPM Quote Signature included + * using TPM_QUOTE_INFO2, TPM_CAP_VERSION_INFO appended */ + PTS_SIMPLE_EVID_FINAL_QUOTE_INFO2_CAP_VER = 0xC0, + /** Evidence Signature included */ + PTS_SIMPLE_EVID_FINAL_EVID_SIG = 0x20, +}; + +#endif /** PTS_SIMPLE_EVID_FINAL_H_ @}*/ diff --git a/src/libimcv/seg/seg_contract.c b/src/libimcv/seg/seg_contract.c new file mode 100644 index 000000000..7db702a08 --- /dev/null +++ b/src/libimcv/seg/seg_contract.c @@ -0,0 +1,479 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "seg_contract.h" +#include "seg_env.h" +#include "ietf/ietf_attr_pa_tnc_error.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" + +#include <utils/debug.h> +#include <bio/bio_writer.h> + +#include <tncif_pa_subtypes.h> + +typedef struct private_seg_contract_t private_seg_contract_t; + +/** + * Private data of a seg_contract_t object. + */ +struct private_seg_contract_t { + + /** + * Public seg_contract_t interface. + */ + seg_contract_t public; + + /** + * PA-TNC message type + */ + pen_type_t msg_type; + + /** + * Maximum PA-TNC attribute size + */ + uint32_t max_attr_size; + + /** + * Maximum PA-TNC attribute segment size + */ + uint32_t max_seg_size; + + /** + * Maximum PA-TNC attribute segment size + */ + uint32_t last_base_attr_id; + + /** + * List of attribute segment envelopes + */ + + linked_list_t *seg_envs; + + /** + * Is this a null contract? + */ + bool is_null; + + /** + * Contract role + */ + bool is_issuer; + + /** + * Issuer ID (either IMV or IMC ID) + */ + TNC_UInt32 issuer_id; + + /** + * Responder ID (either IMC or IMV ID) + */ + TNC_UInt32 responder_id; + + /** + * IMC/IMV role + */ + bool is_imc; + +}; + +METHOD(seg_contract_t, get_msg_type, pen_type_t, + private_seg_contract_t *this) +{ + return this->msg_type; +} + +METHOD(seg_contract_t, set_max_size, void, + private_seg_contract_t *this, uint32_t max_attr_size, uint32_t max_seg_size) +{ + this->max_attr_size = max_attr_size; + this->max_seg_size = max_seg_size; + this->is_null = max_attr_size == SEG_CONTRACT_MAX_SIZE_VALUE && + max_seg_size == SEG_CONTRACT_MAX_SIZE_VALUE; +} + +METHOD(seg_contract_t, get_max_size, void, + private_seg_contract_t *this, uint32_t *max_attr_size, uint32_t *max_seg_size) +{ + if (max_attr_size) + { + *max_attr_size = this->max_attr_size; + } + if (max_seg_size) + { + *max_seg_size = this->max_seg_size; + } +} + +METHOD(seg_contract_t, check_size, bool, + private_seg_contract_t *this, pa_tnc_attr_t *attr, bool *oversize) +{ + chunk_t attr_value; + size_t attr_len; + + *oversize = FALSE; + + if (this->is_null) + { + /* null segmentation contract */ + return FALSE; + } + attr->build(attr); + attr_value = attr->get_value(attr); + attr_len = PA_TNC_ATTR_HEADER_SIZE + attr_value.len; + + if (attr_len > this->max_attr_size) + { + /* oversize attribute */ + *oversize = TRUE; + return FALSE; + } + if (this->max_seg_size == SEG_CONTRACT_NO_FRAGMENTATION) + { + /* no fragmentation wanted */ + return FALSE; + } + return attr_value.len > this->max_seg_size + TCG_SEG_ATTR_SEG_ENV_HEADER; +} + +METHOD(seg_contract_t, first_segment, pa_tnc_attr_t*, + private_seg_contract_t *this, pa_tnc_attr_t *attr) +{ + seg_env_t *seg_env; + + seg_env = seg_env_create(++this->last_base_attr_id, attr, + this->max_seg_size); + if (!seg_env) + { + return NULL; + } + this->seg_envs->insert_last(this->seg_envs, seg_env); + + return seg_env->first_segment(seg_env); +} + +METHOD(seg_contract_t, next_segment, pa_tnc_attr_t*, + private_seg_contract_t *this, uint32_t base_attr_id) +{ + pa_tnc_attr_t *seg_env_attr = NULL; + seg_env_t *seg_env; + bool last_segment = FALSE; + enumerator_t *enumerator; + + enumerator = this->seg_envs->create_enumerator(this->seg_envs); + while (enumerator->enumerate(enumerator, &seg_env)) + { + if (seg_env->get_base_attr_id(seg_env) == base_attr_id) + { + seg_env_attr = seg_env->next_segment(seg_env, &last_segment); + if (!seg_env_attr) + { + break; + } + if (last_segment) + { + this->seg_envs->remove_at(this->seg_envs, enumerator); + seg_env->destroy(seg_env); + } + break; + } + } + enumerator->destroy(enumerator); + + return seg_env_attr; +} + +METHOD(seg_contract_t, add_segment, pa_tnc_attr_t*, + private_seg_contract_t *this, pa_tnc_attr_t *attr, pa_tnc_attr_t **error, + bool *more) +{ + tcg_seg_attr_seg_env_t *seg_env_attr; + seg_env_t *current, *seg_env = NULL; + pa_tnc_attr_t *base_attr; + pen_type_t error_code; + uint32_t base_attr_id; + uint8_t flags; + chunk_t segment_data, msg_info; + enumerator_t *enumerator; + + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + base_attr_id = seg_env_attr->get_base_attr_id(seg_env_attr); + segment_data = seg_env_attr->get_segment(seg_env_attr, &flags); + *more = flags & SEG_ENV_FLAG_MORE; + *error = NULL; + + enumerator = this->seg_envs->create_enumerator(this->seg_envs); + while (enumerator->enumerate(enumerator, ¤t)) + { + if (current->get_base_attr_id(current) == base_attr_id) + { + seg_env = current; + this->seg_envs->remove_at(this->seg_envs, enumerator); + break; + } + } + enumerator->destroy(enumerator); + + if (flags & SEG_ENV_FLAG_START) + { + if (seg_env) + { + DBG1(DBG_TNC, "base attribute ID %d is already in use", + base_attr_id); + this->seg_envs->insert_last(this->seg_envs, seg_env); + return NULL; + } + DBG2(DBG_TNC, "received first segment for base attribute ID %d " + "(%d bytes)", base_attr_id, segment_data.len); + seg_env = seg_env_create_from_data(base_attr_id, segment_data, + this->max_seg_size, error); + if (!seg_env) + { + return NULL; + } + } + else + { + if (!seg_env) + { + DBG1(DBG_TNC, "base attribute ID %d not found", base_attr_id); + return NULL; + } + DBG2(DBG_TNC, "received %s segment for base attribute ID %d " + "(%d bytes)", (*more) ? "next" : "last", base_attr_id, + segment_data.len); + if (!seg_env->add_segment(seg_env, segment_data, error)) + { + seg_env->destroy(seg_env); + return NULL; + } + } + base_attr = seg_env->get_base_attr(seg_env); + + if (*more) + { + /* reinsert into list since more segments are to come */ + this->seg_envs->insert_last(this->seg_envs, seg_env); + } + else + { + /* added the last segment */ + if (!base_attr) + { + /* base attribute waits for more data */ + DBG1(DBG_TNC, "insufficient bytes for PA-TNC attribute value"); + msg_info = seg_env->get_base_attr_info(seg_env); + error_code = pen_type_create(PEN_IETF, PA_ERROR_INVALID_PARAMETER); + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, PA_TNC_ATTR_INFO_SIZE); + } + seg_env->destroy(seg_env); + } + return base_attr; +} + +METHOD(seg_contract_t, is_issuer, bool, + private_seg_contract_t *this) +{ + return this->is_issuer; +} + +METHOD(seg_contract_t, is_null, bool, + private_seg_contract_t *this) +{ + return this->is_null; +} + +METHOD(seg_contract_t, set_responder, void, + private_seg_contract_t *this, TNC_UInt32 responder_id) +{ + this->responder_id = responder_id; +} + +METHOD(seg_contract_t, get_responder, TNC_UInt32, + private_seg_contract_t *this) +{ + return this->responder_id; +} + +METHOD(seg_contract_t, get_issuer, TNC_UInt32, + private_seg_contract_t *this) +{ + return this->issuer_id; +} + +METHOD(seg_contract_t, clone_, seg_contract_t*, + private_seg_contract_t *this) +{ + private_seg_contract_t *clone; + + clone = malloc_thing(private_seg_contract_t); + memcpy(clone, this, sizeof(private_seg_contract_t)); + clone->seg_envs = linked_list_create(); + + return &clone->public; +} + +METHOD(seg_contract_t, get_info_string, void, + private_seg_contract_t *this, char *buf, size_t len, bool request) +{ + enum_name_t *pa_subtype_names; + uint32_t msg_vid, msg_subtype; + char *pos = buf; + int written; + + /* nul-terminate the string buffer */ + buf[--len] = '\0'; + + if (this->is_issuer && request) + { + written = snprintf(pos, len, "%s %d requests", + this->is_imc ? "IMC" : "IMV", this->issuer_id); + } + else + { + written = snprintf(pos, len, "%s %d received", + this->is_imc ? "IMC" : "IMV", + this->is_issuer ? this->issuer_id : + this->responder_id); + } + if (written < 0 || written > len) + { + return; + } + pos += written; + len -= written; + + written = snprintf(pos, len, " a %ssegmentation contract%s ", + this->is_null ? "null" : "", request ? + (this->is_issuer ? "" : " request") : " response"); + if (written < 0 || written > len) + { + return; + } + pos += written; + len -= written; + + if ((!this->is_issuer && this->issuer_id != TNC_IMVID_ANY) || + ( this->is_issuer && this->responder_id != TNC_IMVID_ANY)) + { + written = snprintf(pos, len, "from %s %d ", + this->is_imc ? "IMV" : "IMC", + this->is_issuer ? this->responder_id : + this->issuer_id); + if (written < 0 || written > len) + { + return; + } + pos += written; + len -= written; + } + + msg_vid = this->msg_type.vendor_id; + msg_subtype = this->msg_type.type; + pa_subtype_names = get_pa_subtype_names(msg_vid); + if (pa_subtype_names) + { + written = snprintf(pos, len, "for PA message type '%N/%N' " + "0x%06x/0x%08x", pen_names, msg_vid, + pa_subtype_names, msg_subtype, msg_vid, + msg_subtype); + } + else + { + written = snprintf(pos, len, "for PA message type '%N' " + "0x%06x/0x%08x", pen_names, msg_vid, + msg_vid, msg_subtype); + } + if (written < 0 || written > len) + { + return; + } + pos += written; + len -= written; + + if (!this->is_null) + { + written = snprintf(pos, len, "\n maximum attribute size of %u bytes " + "with ", this->max_attr_size); + if (written < 0 || written > len) + { + return; + } + pos += written; + len -= written; + + if (this->max_seg_size == SEG_CONTRACT_MAX_SIZE_VALUE) + { + written = snprintf(pos, len, "no segmentation"); + } + else + { + written = snprintf(pos, len, "maximum segment size of %u bytes", + this->max_seg_size); + } + } +} + +METHOD(seg_contract_t, destroy, void, + private_seg_contract_t *this) +{ + this->seg_envs->destroy_offset(this->seg_envs, offsetof(seg_env_t, destroy)); + free(this); +} + +/** + * See header + */ +seg_contract_t *seg_contract_create(pen_type_t msg_type, + uint32_t max_attr_size, + uint32_t max_seg_size, + bool is_issuer, TNC_UInt32 issuer_id, + bool is_imc) +{ + private_seg_contract_t *this; + + INIT(this, + .public = { + .get_msg_type = _get_msg_type, + .set_max_size = _set_max_size, + .get_max_size = _get_max_size, + .check_size = _check_size, + .first_segment = _first_segment, + .next_segment = _next_segment, + .add_segment = _add_segment, + .is_issuer = _is_issuer, + .is_null = _is_null, + .set_responder = _set_responder, + .get_responder = _get_responder, + .get_issuer = _get_issuer, + .clone = _clone_, + .get_info_string = _get_info_string, + .destroy = _destroy, + }, + .msg_type = msg_type, + .max_attr_size = max_attr_size, + .max_seg_size = max_seg_size, + .seg_envs = linked_list_create(), + .is_issuer = is_issuer, + .issuer_id = issuer_id, + .responder_id = is_imc ? TNC_IMVID_ANY : TNC_IMCID_ANY, + .is_imc = is_imc, + .is_null = max_attr_size == SEG_CONTRACT_MAX_SIZE_VALUE && + max_seg_size == SEG_CONTRACT_MAX_SIZE_VALUE, + ); + + return &this->public; +} + diff --git a/src/libimcv/seg/seg_contract.h b/src/libimcv/seg/seg_contract.h new file mode 100644 index 000000000..23676a9f4 --- /dev/null +++ b/src/libimcv/seg/seg_contract.h @@ -0,0 +1,180 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup seg_contract seg_contract + * @{ @ingroup libimcv_seg + */ + +#ifndef SEG_CONTRACT_H_ +#define SEG_CONTRACT_H_ + +typedef struct seg_contract_t seg_contract_t; + +#include "pa_tnc/pa_tnc_attr.h" + +#include <library.h> +#include <pen/pen.h> + +#include <tncif.h> + +#define SEG_CONTRACT_MAX_SIZE_VALUE 0xffffffff +#define SEG_CONTRACT_NO_FRAGMENTATION SEG_CONTRACT_MAX_SIZE_VALUE + +/** + * Interface for a PA-TNC attribute segmentation contract + * + */ +struct seg_contract_t { + + /** + * Get the PA-TNC message type. + * + * @return PA-TNC Message type + */ + pen_type_t (*get_msg_type)(seg_contract_t *this); + + /** + * Set maximum PA-TNC attribute and segment size in octets + * + * @param max_attr_size Maximum PA-TNC attribute size in octets + * @param max_seg_size Maximum PA-TNC attribute segment size in octets + */ + void (*set_max_size)(seg_contract_t *this, uint32_t max_attr_size, + uint32_t max_seg_size); + + /** + * Get maximum PA-TNC attribute and segment size in octets + * + * @param max_attr_size Maximum PA-TNC attribute size in octets + * @param max_seg_size Maximum PA-TNC attribute segment size in octets + */ + void (*get_max_size)(seg_contract_t *this, uint32_t *max_attr_size, + uint32_t *max_seg_size); + + /** + * Check if a PA-TNC attribute must be segmented or is oversized + * + * @param attr PA-TNC attribute to be checked + * @param oversize PA-TNC attribute is larger than maximum size + * @return TRUE if PA-TNC attribute must be segmented + */ + bool (*check_size)(seg_contract_t *this, pa_tnc_attr_t *attr, + bool *oversize); + + /** + * Generate first segment of a PA-TNC attribute according to the contract + * + * @param attr PA-TNC attribute to be segmented + * @return First segment envelope attribute + */ + pa_tnc_attr_t* (*first_segment)(seg_contract_t *this, pa_tnc_attr_t *attr); + + /** + * Generate next segment of a PA-TNC attribute according to the contract + * + * @param base_attr_id Base Attribute ID + * @return Next segment envelope attribute + */ + pa_tnc_attr_t* (*next_segment)(seg_contract_t *this, uint32_t base_attr_id); + + /** + * Add an attribute segments until the PA-TNC attribute is reconstructed + * + * @param attr Segment envelope attribute + * @param error Error attribute if an error occurred or NULL + * @param more Need more segments + * @return Completed PA-TNC attribute or NULL + */ + pa_tnc_attr_t* (*add_segment)(seg_contract_t *this, + pa_tnc_attr_t *attr, pa_tnc_attr_t **error, + bool *more); + + /** + * Get contract role + * + * @return TRUE: contracting party (issuer), + * FALSE: contracted party + */ + bool (*is_issuer)(seg_contract_t *this); + + /** + * Is this a null contract ? + * + * @return TRUE if null contract + */ + bool (*is_null)(seg_contract_t *this); + + /** + * Set the responder ID + * + * @param responder IMC or IMV ID of responder + */ + void (*set_responder)(seg_contract_t *this, TNC_UInt32 responder); + + /** + * Get the responder ID + * + * @return IMC or IMV ID of responder + */ + TNC_UInt32 (*get_responder)(seg_contract_t *this); + + /** + * Get the issuer ID + * + * @return IMC or IMV ID of issuer + */ + TNC_UInt32 (*get_issuer)(seg_contract_t *this); + + /** + * Clone a contract + * + * @return Cloned contract + */ + seg_contract_t* (*clone)(seg_contract_t *this); + + /** + * Get an info string about the contract + * + * @param buf String buffer of at least size len + * @param len Size of string buffer + * @param request TRUE if contract request, FALSE if response + */ + void (*get_info_string)(seg_contract_t *this, char *buf, size_t len, + bool request); + + /** + * Destroys a seg_contract_t object. + */ + void (*destroy)(seg_contract_t *this); +}; + +/** + * Create a PA-TNC attribute segmentation contract + * + * @param msg_type PA-TNC message type + * @param max_attr_size Maximum PA-TNC attribute size in octets + * @param max_seg_size Maximum PA-TNC attribute segment size in octets + * @param is_issuer TRUE if issuer of the contract + * @param issuer_id IMC or IMV ID of issuer + * @param is_imc TRUE if IMC, FALSE if IMV + */ +seg_contract_t* seg_contract_create(pen_type_t msg_type, + uint32_t max_attr_size, + uint32_t max_seg_size, + bool is_issuer, TNC_UInt32 issuer_id, + bool is_imc); + +#endif /** SEG_CONTRACT_H_ @}*/ diff --git a/src/libimcv/seg/seg_contract_manager.c b/src/libimcv/seg/seg_contract_manager.c new file mode 100644 index 000000000..604c51134 --- /dev/null +++ b/src/libimcv/seg/seg_contract_manager.c @@ -0,0 +1,94 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "seg_contract_manager.h" + +typedef struct private_seg_contract_manager_t private_seg_contract_manager_t; + +/** + * Private data of a seg_contract_manager_t object. + * + */ +struct private_seg_contract_manager_t { + + /** + * Public seg_contract_manager_t interface. + */ + seg_contract_manager_t public; + + /** + * List of PA-TNC segmentation contracts + */ + linked_list_t *contracts; + +}; + +METHOD(seg_contract_manager_t, add_contract, void, + private_seg_contract_manager_t *this, seg_contract_t *contract) +{ + this->contracts->insert_last(this->contracts, contract); +} + +METHOD(seg_contract_manager_t, get_contract, seg_contract_t*, + private_seg_contract_manager_t *this, pen_type_t msg_type, bool is_issuer, + TNC_UInt32 id) +{ + enumerator_t *enumerator; + seg_contract_t *contract, *found = NULL; + + enumerator = this->contracts->create_enumerator(this->contracts); + while (enumerator->enumerate(enumerator, &contract)) + { + if (contract->is_issuer(contract) == is_issuer && + pen_type_equals(contract->get_msg_type(contract), msg_type) && + id == (is_issuer ? contract->get_responder(contract) : + contract->get_issuer(contract))) + { + found = contract; + break; + } + } + enumerator->destroy(enumerator); + + return found; +} + +METHOD(seg_contract_manager_t, destroy, void, + private_seg_contract_manager_t *this) +{ + this->contracts->destroy_offset(this->contracts, + offsetof(seg_contract_t, destroy)); + free(this); +} + +/** + * See header + */ +seg_contract_manager_t *seg_contract_manager_create(void) +{ + private_seg_contract_manager_t *this; + + INIT(this, + .public = { + .add_contract = _add_contract, + .get_contract = _get_contract, + .destroy = _destroy, + }, + .contracts = linked_list_create(), + ); + + return &this->public; +} + diff --git a/src/libimcv/seg/seg_contract_manager.h b/src/libimcv/seg/seg_contract_manager.h new file mode 100644 index 000000000..fa9d23c0f --- /dev/null +++ b/src/libimcv/seg/seg_contract_manager.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup seg_contract_manager seg_contract_manager + * @{ @ingroup libimcv_seg + */ + +#ifndef SEG_CONTRACT_MANAGER_H_ +#define SEG_CONTRACT_MANAGER_H_ + +typedef struct seg_contract_manager_t seg_contract_manager_t; + +#include "seg_contract.h" + +/** + * Interface for a PA-TNC attribute segmentation contract manager + * + */ +struct seg_contract_manager_t { + + /** + * Add segmentation contract + * + * @param contract Segmentation contract to be added + */ + void (*add_contract)(seg_contract_manager_t *this, seg_contract_t *contract); + + /** + * Get segmentation contract + * + * @param msg_type PA-TNC message type governed by contract + * @param is_issuer If TRUE get only issuer contracts + * @param id Match either issuer or responder ID + */ + seg_contract_t* (*get_contract)(seg_contract_manager_t *this, + pen_type_t msg_type, bool is_issuer, + TNC_UInt32 id); + + /** + * Destroys a seg_contract_manager_t object. + */ + void (*destroy)(seg_contract_manager_t *this); +}; + +/** + * Create a PA-TNC attribute segmentation contract manager + */ +seg_contract_manager_t* seg_contract_manager_create(); + +#endif /** SEG_CONTRACT_MANAGER_H_ @}*/ diff --git a/src/libimcv/seg/seg_env.c b/src/libimcv/seg/seg_env.c new file mode 100644 index 000000000..c47ce2934 --- /dev/null +++ b/src/libimcv/seg/seg_env.c @@ -0,0 +1,306 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "seg_env.h" + +#include "imcv.h" +#include "pa_tnc/pa_tnc_msg.h" +#include "ietf/ietf_attr_pa_tnc_error.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" + +#include <utils/debug.h> +#include <bio/bio_reader.h> +#include <bio/bio_writer.h> + +#define BASE_ATTR_ID_PREFIX 0xFF + +typedef struct private_seg_env_t private_seg_env_t; + +/** + * Private data of a seg_env_t object. + */ +struct private_seg_env_t { + + /** + * Public seg_env_t interface. + */ + seg_env_t public; + + /** + * Base Attribute ID + */ + uint32_t base_attr_id; + + /** + * Base Attribute + */ + pa_tnc_attr_t *base_attr; + + /** + * Base Attribute Info to be used for PA-TNC error messages + */ + u_char base_attr_info[8]; + + /** + * Base Attribute needs more segment data + */ + bool need_more; + + /** + * Pointer to remaining attribute data to be sent + */ + chunk_t data; + + /** + * Maximum PA-TNC attribute segment size + */ + uint32_t max_seg_size; + +}; + +METHOD(seg_env_t, get_base_attr_id, uint32_t, + private_seg_env_t *this) +{ + return this->base_attr_id; +} + +METHOD(seg_env_t, get_base_attr, pa_tnc_attr_t*, + private_seg_env_t *this) +{ + return this->need_more ? NULL : this->base_attr->get_ref(this->base_attr); +} + +METHOD(seg_env_t, get_base_attr_info, chunk_t, + private_seg_env_t *this) +{ + return chunk_create(this->base_attr_info, 8); +} + +METHOD(seg_env_t, first_segment, pa_tnc_attr_t*, + private_seg_env_t *this) +{ + pa_tnc_attr_t *seg_env_attr; + bio_writer_t *writer; + pen_type_t type; + chunk_t segment_data, value; + uint8_t flags, seg_env_flags; + + /* get components of base attribute header and data */ + flags = this->base_attr->get_noskip_flag(this->base_attr) ? + PA_TNC_ATTR_FLAG_NOSKIP : PA_TNC_ATTR_FLAG_NONE; + type = this->base_attr->get_type(this->base_attr); + + /* attribute data going into the first segment */ + segment_data = this->data; + segment_data.len = this->max_seg_size - PA_TNC_ATTR_HEADER_SIZE; + + /* build encoding of the base attribute header and first segment data */ + writer = bio_writer_create(this->max_seg_size); + writer->write_uint8 (writer, flags); + writer->write_uint24(writer, type.vendor_id); + writer->write_uint32(writer, type.type); + writer->write_uint32(writer, PA_TNC_ATTR_HEADER_SIZE + this->data.len); + writer->write_data (writer, segment_data); + value = writer->extract_buf(writer); + writer->destroy(writer); + this->data = chunk_skip(this->data, segment_data.len); + + DBG2(DBG_TNC, "creating first segment for base attribute ID %d (%d bytes)", + this->base_attr_id, this->max_seg_size); + + seg_env_flags = SEG_ENV_FLAG_START | SEG_ENV_FLAG_MORE; + seg_env_attr = tcg_seg_attr_seg_env_create(value, seg_env_flags, + this->base_attr_id); + chunk_free(&value); + + return seg_env_attr; +} + +METHOD(seg_env_t, next_segment, pa_tnc_attr_t*, + private_seg_env_t *this, bool *last) +{ + pa_tnc_attr_t *seg_env_attr; + chunk_t segment_data; + uint8_t seg_env_flags; + bool is_last_segment; + + if (this->data.len == 0) + { + /* no more attribute data to segment available */ + return NULL; + } + + /* attribute data going into the next segment */ + segment_data = this->data; + segment_data.len = min(this->max_seg_size, this->data.len); + this->data = chunk_skip(this->data, segment_data.len); + + is_last_segment = (this->data.len == 0); + if (last) + { + *last = is_last_segment; + } + DBG2(DBG_TNC, "creating %s segment for base attribute ID %d (%d bytes)", + is_last_segment ? "last" : "next", this->base_attr_id, + segment_data.len); + + seg_env_flags = is_last_segment ? SEG_ENV_FLAG_NONE : SEG_ENV_FLAG_MORE; + seg_env_attr = tcg_seg_attr_seg_env_create(segment_data, seg_env_flags, + this->base_attr_id); + + return seg_env_attr; +} + +METHOD(seg_env_t, add_segment, bool, + private_seg_env_t *this, chunk_t segment, pa_tnc_attr_t **error) +{ + pen_type_t type, error_code; + uint32_t attr_offset; + chunk_t msg_info; + status_t status; + + this->base_attr->add_segment(this->base_attr, segment); + status = this->base_attr->process(this->base_attr, &attr_offset); + + if (status != SUCCESS && status != NEED_MORE) + { + type = this->base_attr->get_type(this->base_attr); + if (type.vendor_id == PEN_IETF && type.type == IETF_ATTR_PA_TNC_ERROR) + { + /* error while processing a PA-TNC error attribute - abort */ + return FALSE; + } + error_code = pen_type_create(PEN_IETF, PA_ERROR_INVALID_PARAMETER); + msg_info = get_base_attr_info(this); + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, PA_TNC_ATTR_HEADER_SIZE + attr_offset); + return FALSE; + } + this->need_more = (status == NEED_MORE); + + return TRUE; +} + +METHOD(seg_env_t, destroy, void, + private_seg_env_t *this) +{ + DESTROY_IF(this->base_attr); + free(this); +} + +/** + * See header + */ +seg_env_t *seg_env_create(uint32_t base_attr_id, pa_tnc_attr_t *base_attr, + uint32_t max_seg_size) +{ + private_seg_env_t *this; + chunk_t value; + + base_attr->build(base_attr); + value = base_attr->get_value(base_attr); + + /** + * The PA-TNC attribute header must not be segmented and + * there must be at least a first and one next segment + */ + if (max_seg_size < PA_TNC_ATTR_HEADER_SIZE || + max_seg_size >= PA_TNC_ATTR_HEADER_SIZE + value.len) + { + return NULL; + } + + INIT(this, + .public = { + .get_base_attr_id = _get_base_attr_id, + .get_base_attr = _get_base_attr, + .get_base_attr_info = _get_base_attr_info, + .first_segment = _first_segment, + .next_segment = _next_segment, + .add_segment = _add_segment, + .destroy = _destroy, + }, + .base_attr_id = base_attr_id, + .base_attr = base_attr->get_ref(base_attr), + .max_seg_size = max_seg_size, + .data = base_attr->get_value(base_attr), + ); + + return &this->public; +} + +/** + * See header + */ +seg_env_t *seg_env_create_from_data(uint32_t base_attr_id, chunk_t data, + uint32_t max_seg_size, pa_tnc_attr_t** error) +{ + private_seg_env_t *this; + pen_type_t type, error_code; + bio_reader_t *reader; + chunk_t msg_info; + uint32_t offset = 0, attr_offset; + status_t status; + + INIT(this, + .public = { + .get_base_attr_id = _get_base_attr_id, + .get_base_attr = _get_base_attr, + .get_base_attr_info = _get_base_attr_info, + .first_segment = _first_segment, + .next_segment = _next_segment, + .add_segment = _add_segment, + .destroy = _destroy, + }, + .base_attr_id = base_attr_id, + .max_seg_size = max_seg_size, + ); + + /* create info field to be used by PA-TNC error messages */ + memset(this->base_attr_info, 0xff, 4); + htoun32(this->base_attr_info + 4, base_attr_id); + msg_info = get_base_attr_info(this); + + /* extract from base attribute segment from data */ + reader = bio_reader_create(data); + this->base_attr = imcv_pa_tnc_attributes->create(imcv_pa_tnc_attributes, + reader, TRUE, &offset, msg_info, error); + reader->destroy(reader); + + if (!this->base_attr) + { + destroy(this); + return NULL; + } + status = this->base_attr->process(this->base_attr, &attr_offset); + + if (status != SUCCESS && status != NEED_MORE) + { + type = this->base_attr->get_type(this->base_attr); + if (!(type.vendor_id == PEN_IETF && + type.type == IETF_ATTR_PA_TNC_ERROR)) + { + error_code = pen_type_create(PEN_IETF, PA_ERROR_INVALID_PARAMETER); + *error = ietf_attr_pa_tnc_error_create_with_offset(error_code, + msg_info, PA_TNC_ATTR_HEADER_SIZE + attr_offset); + } + destroy(this); + return NULL; + } + this->need_more = (status == NEED_MORE); + + return &this->public; +} + diff --git a/src/libimcv/seg/seg_env.h b/src/libimcv/seg/seg_env.h new file mode 100644 index 000000000..08d33d752 --- /dev/null +++ b/src/libimcv/seg/seg_env.h @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup seg_env seg_env + * @{ @ingroup libimcv_seg + */ + +#ifndef SEG_ENV_H_ +#define SEG_ENV_H_ + +typedef struct seg_env_t seg_env_t; +typedef enum seg_env_flags_t seg_env_flags_t; + +#include <library.h> + +#include <pa_tnc/pa_tnc_attr.h> + +/** + * Segment Envelope flags + */ +enum seg_env_flags_t { + SEG_ENV_FLAG_NONE = 0, + SEG_ENV_FLAG_MORE = (1<<7), + SEG_ENV_FLAG_START = (1<<6) +}; + +/** + * Interface for a PA-TNC attribute segment envelope object + */ +struct seg_env_t { + + /** + * Get Base Attribute ID + * + * @return Base Attribute ID + */ + uint32_t (*get_base_attr_id)(seg_env_t *this); + + /** + * Get Base Attribute if it contains processed [incremental] data + * + * @return Base Attribute (must be destroyed) or NULL + */ + pa_tnc_attr_t* (*get_base_attr)(seg_env_t *this); + + /** + * Base Attribute Info to be used by PA-TNC error messages + * + * @return Message info string + */ + chunk_t (*get_base_attr_info)(seg_env_t *this); + + /** + * Generate the first segment envelope of the base attribute + * + * @return First attribute segment envelope + */ + pa_tnc_attr_t* (*first_segment)(seg_env_t *this); + + /** + * Generate the next segment envelope of the base attribute + * + * @param last TRUE if last segment + * @return Next attribute segment envelope + */ + pa_tnc_attr_t* (*next_segment)(seg_env_t *this, bool *last); + + /** + * Generate the first segment envelope of the base attribute + * + * @param segment Attribute segment to be added + * @param error Error attribute if a parsing error occurred + * return TRUE if segment was successfully added + */ + bool (*add_segment)(seg_env_t *this, chunk_t segment, + pa_tnc_attr_t** error); + + /** + * Destroys a seg_env_t object. + */ + void (*destroy)(seg_env_t *this); +}; + +/** + * Create a PA-TNC attribute segment envelope object + * + * @param base_attr_id Base Attribute ID + * @param base_attr Base Attribute to be segmented + * @param max_seg_size Maximum segment size + */ +seg_env_t* seg_env_create(uint32_t base_attr_id, pa_tnc_attr_t *base_attr, + uint32_t max_seg_size); + +/** + * Create a PA-TNC attribute segment envelope object + * + * @param base_attr_id Base Attribute ID + * @param data First attribute segment + * @param max_seg_size Maximum segment size + * @param error Error attribute if a parsing error occurred + */ +seg_env_t* seg_env_create_from_data(uint32_t base_attr_id, chunk_t data, + uint32_t max_seg_size, + pa_tnc_attr_t** error); + +#endif /** SEG_ENV_H_ @}*/ diff --git a/src/libimcv/suites/test_imcv_seg.c b/src/libimcv/suites/test_imcv_seg.c new file mode 100644 index 000000000..469b1110d --- /dev/null +++ b/src/libimcv/suites/test_imcv_seg.c @@ -0,0 +1,738 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "test_suite.h" + +#include <imcv.h> +#include <pa_tnc/pa_tnc_attr.h> +#include <seg/seg_env.h> +#include <seg/seg_contract.h> +#include <seg/seg_contract_manager.h> +#include <ietf/ietf_attr_pa_tnc_error.h> +#include <ita/ita_attr.h> +#include <ita/ita_attr_command.h> +#include <ita/ita_attr_dummy.h> +#include <tcg/seg/tcg_seg_attr_seg_env.h> + +#include <tncif_pa_subtypes.h> + +static struct { + uint32_t max_seg_size, next_segs, last_seg_size; +} seg_env_tests[] = { + { 0, 0, 0 }, + { 11, 0, 0 }, + { 12, 3, 12 }, + { 13, 3, 9 }, + { 15, 3, 3 }, + { 16, 2, 16 }, + { 17, 2, 14 }, + { 23, 2, 2 }, + { 24, 1, 24 }, + { 25, 1, 23 }, + { 47, 1, 1 }, + { 48, 0, 0 }, +}; + +static char command[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; +static uint32_t id = 0x123456; + +START_TEST(test_imcv_seg_env) +{ + pa_tnc_attr_t *attr, *attr1, *base_attr, *base_attr1, *error; + tcg_seg_attr_seg_env_t *seg_env_attr; + ita_attr_command_t *ita_attr; + seg_env_t *seg_env, *seg_env1; + pen_type_t type; + uint32_t base_attr_id, max_seg_size, last_seg_size, seg_size, offset; + uint8_t flags; + bool last, last_seg; + chunk_t value, segment, seg; + int n; + + libimcv_init(FALSE); + max_seg_size = seg_env_tests[_i].max_seg_size; + last_seg_size = seg_env_tests[_i].last_seg_size; + base_attr = ita_attr_command_create(command); + base_attr->build(base_attr); + + seg_env = seg_env_create(id, base_attr, max_seg_size); + if (seg_env_tests[_i].next_segs == 0) + { + ck_assert(seg_env == NULL); + } + else + { + ck_assert(seg_env->get_base_attr_id(seg_env) == id); + base_attr1 = seg_env->get_base_attr(seg_env); + ck_assert(base_attr == base_attr1); + base_attr1->destroy(base_attr1); + + for (n = 0; n <= seg_env_tests[_i].next_segs; n++) + { + last_seg = (n == seg_env_tests[_i].next_segs); + seg_size = (last_seg) ? last_seg_size : max_seg_size; + if (n == 0) + { + /* create first segment */ + attr = seg_env->first_segment(seg_env); + + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + segment = seg_env_attr->get_segment(seg_env_attr, &flags); + if (max_seg_size > 12) + { + seg = chunk_create(command, seg_size - 12); + ck_assert(chunk_equals(seg, chunk_skip(segment, 12))); + } + ck_assert(flags == (SEG_ENV_FLAG_MORE | SEG_ENV_FLAG_START)); + } + else + { + /* create next segments */ + attr = seg_env->next_segment(seg_env, &last); + ck_assert(last == last_seg); + + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + segment = seg_env_attr->get_segment(seg_env_attr, &flags); + seg = chunk_create(command + n * max_seg_size - 12, seg_size); + ck_assert(chunk_equals(seg, segment)); + ck_assert(flags == last_seg ? SEG_ENV_FLAG_NONE : + SEG_ENV_FLAG_MORE); + } + + /* check built segment envelope attribute */ + value = attr->get_value(attr); + ck_assert(value.len == 4 + seg_size); + ck_assert(segment.len == seg_size); + ck_assert(seg_env_attr->get_base_attr_id(seg_env_attr) == id); + + /* create parse segment envelope attribute from data */ + attr1 = tcg_seg_attr_seg_env_create_from_data(value.len, value); + ck_assert(attr1->process(attr1, &offset) == SUCCESS); + attr->destroy(attr); + + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr1; + segment = seg_env_attr->get_segment(seg_env_attr, &flags); + base_attr_id = seg_env_attr->get_base_attr_id(seg_env_attr); + ck_assert(base_attr_id == id); + + /* create and update seg_env object on the receiving side */ + if (n == 0) + { + ck_assert(flags == (SEG_ENV_FLAG_MORE | SEG_ENV_FLAG_START)); + seg_env1 = seg_env_create_from_data(base_attr_id, segment, + max_seg_size, &error); + } + else + { + ck_assert(flags == last_seg ? SEG_ENV_FLAG_NONE : + SEG_ENV_FLAG_MORE); + seg_env1->add_segment(seg_env1, segment, &error); + } + attr1->destroy(attr1); + } + + /* check reconstructed base attribute */ + base_attr1 = seg_env1->get_base_attr(seg_env1); + ck_assert(base_attr1); + type = base_attr1->get_type(base_attr1); + ck_assert(type.vendor_id == PEN_ITA); + ck_assert(type.type == ITA_ATTR_COMMAND); + ita_attr = (ita_attr_command_t*)base_attr1; + ck_assert(streq(ita_attr->get_command(ita_attr), command)); + + seg_env->destroy(seg_env); + seg_env1->destroy(seg_env1); + base_attr1->destroy(base_attr1); + } + base_attr->destroy(base_attr); + libimcv_deinit(); +} +END_TEST + +START_TEST(test_imcv_seg_env_special) +{ + pa_tnc_attr_t *attr, *attr1, *base_attr; + tcg_seg_attr_seg_env_t *seg_env_attr; + pen_type_t type; + seg_env_t *seg_env; + chunk_t segment, value; + uint32_t max_seg_size = 47; + uint32_t last_seg_size = 1; + uint32_t offset = 12; + + base_attr = ita_attr_command_create(command); + base_attr->build(base_attr); + + /* set noskip flag in base attribute */ + base_attr->set_noskip_flag(base_attr, TRUE); + + seg_env = seg_env_create(id, base_attr, max_seg_size); + attr = seg_env->first_segment(seg_env); + attr->destroy(attr); + + /* don't return last segment indicator */ + attr = seg_env->next_segment(seg_env, NULL); + + /* build attribute */ + attr->build(attr); + + /* don't return flags */ + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + segment = seg_env_attr->get_segment(seg_env_attr, NULL); + ck_assert(segment.len == last_seg_size); + + /* get segment envelope attribute reference and destroy it */ + attr1 = attr->get_ref(attr); + attr1->destroy(attr1); + + /* check some standard methods */ + type = attr->get_type(attr); + ck_assert(type.vendor_id == PEN_TCG); + ck_assert(type.type == TCG_SEG_ATTR_SEG_ENV); + ck_assert(attr->get_noskip_flag(attr) == FALSE); + attr->set_noskip_flag(attr, TRUE); + ck_assert(attr->get_noskip_flag(attr) == TRUE); + + /* request next segment which does not exist */ + ck_assert(seg_env->next_segment(seg_env, NULL) == NULL); + + /* create and parse a too short segment envelope attribute */ + attr1 = tcg_seg_attr_seg_env_create_from_data(0, chunk_empty); + ck_assert(attr1->process(attr1, &offset) == FAILED); + ck_assert(offset == 0); + attr1->destroy(attr1); + + /* create and parse correct segment envelope attribute */ + value = attr->get_value(attr); + attr1 = tcg_seg_attr_seg_env_create_from_data(value.len, value); + ck_assert(attr1->process(attr1, &offset) == SUCCESS); + type = attr1->get_type(attr1); + ck_assert(type.vendor_id == PEN_TCG); + ck_assert(type.type == TCG_SEG_ATTR_SEG_ENV); + attr1->destroy(attr1); + + /* cleanup */ + attr->destroy(attr); + seg_env->destroy(seg_env); + base_attr->destroy(base_attr); +} +END_TEST + +static struct { + pa_tnc_error_code_t error_code; + chunk_t segment; +} env_invalid_tests[] = { + { PA_ERROR_INVALID_PARAMETER, { NULL, 0 } }, + { PA_ERROR_INVALID_PARAMETER, chunk_from_chars( + 0x00, 0xff, 0xff, 0xf0, 0x01, 0x02, 0x03, 0x04, 0x00, 0x00, 0x00, 0x0a) + }, + { PA_ERROR_INVALID_PARAMETER, chunk_from_chars( + 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0c) + }, + { PA_ERROR_INVALID_PARAMETER, chunk_from_chars( + 0x00, 0x00, 0x90, 0x2a, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x0c) + }, + { PA_ERROR_ATTR_TYPE_NOT_SUPPORTED, chunk_from_chars( + 0x80, 0x00, 0x90, 0x2a, 0xff, 0xff, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x0c) + }, + { PA_ERROR_RESERVED, chunk_from_chars( + 0x00, 0x00, 0x90, 0x2a, 0xff, 0xff, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x0c) + }, + { PA_ERROR_RESERVED, chunk_from_chars( + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x0c) + }, + { PA_ERROR_INVALID_PARAMETER, chunk_from_chars( + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x0c) + } +}; + +START_TEST(test_imcv_seg_env_invalid) +{ + seg_env_t *seg_env; + pen_type_t error_code; + pa_tnc_attr_t*error; + ietf_attr_pa_tnc_error_t *error_attr; + + libimcv_init(FALSE); + seg_env = seg_env_create_from_data(id, env_invalid_tests[_i].segment, 20, + &error); + ck_assert(seg_env == NULL); + if (env_invalid_tests[_i].error_code == PA_ERROR_RESERVED) + { + ck_assert(error == NULL); + } + else + { + ck_assert(error); + error->build(error); + error_attr = (ietf_attr_pa_tnc_error_t*)error; + error_code = error_attr->get_error_code(error_attr); + ck_assert(error_code.vendor_id == PEN_IETF); + ck_assert(error_code.type == env_invalid_tests[_i].error_code); + error->destroy(error); + } + libimcv_deinit(); +} +END_TEST + +START_TEST(test_imcv_seg_contract) +{ + seg_contract_t *contract_i, *contract_r; + tcg_seg_attr_seg_env_t *seg_env_attr; + ita_attr_command_t *ita_attr; + pa_tnc_attr_t *attr, *base_attr_i, *base_attr_r, *error; + pen_type_t type, msg_type = { PEN_ITA, PA_SUBTYPE_ITA_TEST }; + uint32_t max_seg_size, max_attr_size = 1000, issuer_id = 1; + uint32_t base_attr_id; + bool more; + + libimcv_init(FALSE); + max_seg_size = seg_env_tests[_i].max_seg_size; + base_attr_r = ita_attr_command_create(command); + base_attr_r->build(base_attr_r); + contract_i = seg_contract_create(msg_type, max_attr_size, max_seg_size, + TRUE, issuer_id, FALSE); + contract_r = seg_contract_create(msg_type, max_attr_size, max_seg_size, + FALSE, issuer_id, TRUE); + attr = contract_r->first_segment(contract_r, base_attr_r); + + if (seg_env_tests[_i].next_segs == 0) + { + ck_assert(attr == NULL); + } + else + { + ck_assert(attr); + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + base_attr_id = seg_env_attr->get_base_attr_id(seg_env_attr); + ck_assert(base_attr_id == 1); + base_attr_i = contract_i->add_segment(contract_i, attr, &error, &more); + ck_assert(base_attr_i == NULL); + attr->destroy(attr); + ck_assert(more); + while (more) + { + attr = contract_r->next_segment(contract_r, base_attr_id); + ck_assert(attr); + seg_env_attr = (tcg_seg_attr_seg_env_t*)attr; + base_attr_id = seg_env_attr->get_base_attr_id(seg_env_attr); + ck_assert(base_attr_id == 1); + base_attr_i = contract_i->add_segment(contract_i, attr, &error, + &more); + attr->destroy(attr); + } + ck_assert(base_attr_i); + ck_assert(error == NULL); + type = base_attr_i->get_type(base_attr_i); + ck_assert(pen_type_equals(type, base_attr_r->get_type(base_attr_r))); + ita_attr = (ita_attr_command_t*)base_attr_i; + ck_assert(streq(ita_attr->get_command(ita_attr), command)); + base_attr_i->destroy(base_attr_i); + } + contract_i->destroy(contract_i); + contract_r->destroy(contract_r); + base_attr_r->destroy(base_attr_r); + libimcv_deinit(); +} +END_TEST + +START_TEST(test_imcv_seg_contract_special) +{ + seg_contract_t *contract_i, *contract_r; + tcg_seg_attr_seg_env_t *seg_env_attr1, *seg_env_attr2; + ita_attr_command_t *ita_attr; + pa_tnc_attr_t *base_attr1_i, *base_attr2_i, *base_attr1_r, *base_attr2_r; + pa_tnc_attr_t *attr1_f, *attr2_f, *attr1_n, *attr2_n, *attr3, *error; + pen_type_t type, msg_type = { PEN_ITA, PA_SUBTYPE_ITA_TEST }; + uint32_t max_seg_size, max_attr_size, issuer_id = 1; + uint32_t base_attr1_id, base_attr2_id; + char info[512]; + bool oversize, more; + + libimcv_init(FALSE); + + /* create two base attributes to be segmented */ + base_attr1_r = ita_attr_command_create(command); + base_attr2_r = ita_attr_dummy_create(129); + base_attr1_r->build(base_attr1_r); + base_attr2_r->build(base_attr2_r); + + /* create an issuer contract*/ + contract_i = seg_contract_create(msg_type, 1000, 47, + TRUE, issuer_id, FALSE); + ck_assert(pen_type_equals(contract_i->get_msg_type(contract_i), msg_type)); + ck_assert(contract_i->is_issuer(contract_i)); + ck_assert(!contract_i->is_null(contract_i)); + + /* set null contract */ + contract_i->set_max_size(contract_i, SEG_CONTRACT_MAX_SIZE_VALUE, + SEG_CONTRACT_MAX_SIZE_VALUE); + ck_assert(contract_i->is_null(contract_i)); + + /* set and get maximum attribute and segment sizes */ + contract_i->set_max_size(contract_i, 1000, 47); + contract_i->get_max_size(contract_i, NULL, NULL); + contract_i->get_max_size(contract_i, &max_attr_size, &max_seg_size); + contract_i->get_info_string(contract_i, info, sizeof(info), TRUE); + ck_assert(max_attr_size == 1000 && max_seg_size == 47); + ck_assert(!contract_i->is_null(contract_i)); + + /* create a null responder contract*/ + contract_r = seg_contract_create(msg_type, SEG_CONTRACT_MAX_SIZE_VALUE, + SEG_CONTRACT_MAX_SIZE_VALUE, + FALSE, issuer_id, TRUE); + ck_assert(!contract_r->is_issuer(contract_r)); + ck_assert(!contract_r->check_size(contract_r, base_attr2_r, &oversize)); + ck_assert(!oversize); + + /* allow no fragmentation */ + contract_r->set_max_size(contract_r, 1000, SEG_CONTRACT_MAX_SIZE_VALUE); + ck_assert(!contract_r->is_null(contract_r)); + ck_assert(!contract_r->check_size(contract_r, base_attr2_r, &oversize)); + ck_assert(!oversize); + + /* no maximum size limit and no fragmentation needed */ + contract_r->set_max_size(contract_r, SEG_CONTRACT_MAX_SIZE_VALUE, 141); + ck_assert(!contract_r->is_null(contract_r)); + ck_assert(!contract_r->check_size(contract_r, base_attr2_r, &oversize)); + ck_assert(!oversize); + + /* oversize base attribute */ + contract_r->set_max_size(contract_r, 140, 47); + ck_assert(!contract_r->is_null(contract_r)); + ck_assert(!contract_r->check_size(contract_r, base_attr2_r, &oversize)); + ck_assert(oversize); + + /* set final maximum attribute and segment sizes */ + contract_r->set_max_size(contract_r, 141, 47); + contract_r->get_info_string(contract_r, info, sizeof(info), TRUE); + ck_assert(contract_r->check_size(contract_r, base_attr2_r, &oversize)); + ck_assert(!oversize); + + /* get first segment of each base attribute */ + attr1_f = contract_r->first_segment(contract_r, base_attr1_r); + attr2_f = contract_r->first_segment(contract_r, base_attr2_r); + ck_assert(attr1_f); + ck_assert(attr2_f); + seg_env_attr1 = (tcg_seg_attr_seg_env_t*)attr1_f; + seg_env_attr2 = (tcg_seg_attr_seg_env_t*)attr2_f; + base_attr1_id = seg_env_attr1->get_base_attr_id(seg_env_attr1); + base_attr2_id = seg_env_attr2->get_base_attr_id(seg_env_attr2); + ck_assert(base_attr1_id == 1); + ck_assert(base_attr2_id == 2); + + /* get second segment of each base attribute */ + attr1_n = contract_r->next_segment(contract_r, 1); + attr2_n = contract_r->next_segment(contract_r, 2); + ck_assert(attr1_n); + ck_assert(attr2_n); + + /* process first segment of first base attribute */ + base_attr1_i = contract_i->add_segment(contract_i, attr1_f, &error, &more); + ck_assert(base_attr1_i == NULL); + ck_assert(error == NULL); + ck_assert(more); + + /* reapply first segment of first base attribute */ + base_attr1_i = contract_i->add_segment(contract_i, attr1_f, &error, &more); + ck_assert(base_attr1_i == NULL); + ck_assert(error == NULL); + ck_assert(more); + + /* process stray second segment of second attribute */ + base_attr2_i = contract_i->add_segment(contract_i, attr2_n, &error, &more); + ck_assert(base_attr2_i == NULL); + ck_assert(error == NULL); + ck_assert(more); + + /* process first segment of second base attribute */ + base_attr2_i = contract_i->add_segment(contract_i, attr2_f, &error, &more); + ck_assert(base_attr2_i == NULL); + ck_assert(error == NULL); + ck_assert(more); + + /* try to get a segment of a non-existing base-attribute */ + attr3 = contract_r->next_segment(contract_r, 3); + ck_assert(attr3 == NULL); + + /* process second segment of first base attribute */ + base_attr1_i = contract_i->add_segment(contract_i, attr1_n, &error, &more); + ck_assert(base_attr1_i); + ck_assert(error == NULL); + ck_assert(!more); + + /* process second segment of second base attribute */ + base_attr2_i = contract_i->add_segment(contract_i, attr2_n, &error, &more); + ck_assert(base_attr2_i == NULL); + ck_assert(error == NULL); + ck_assert(more); + + /* destroy first and second segments */ + attr1_f->destroy(attr1_f); + attr2_f->destroy(attr2_f); + attr1_n->destroy(attr1_n); + attr2_n->destroy(attr2_n); + + /* request surplus segment of first base attribute */ + attr1_n = contract_r->next_segment(contract_r, 1); + ck_assert(attr1_n == NULL); + + /* get last segment of second base attribute */ + attr2_n = contract_r->next_segment(contract_r, 2); + ck_assert(attr2_n); + + /* process last segment of second base attribute */ + base_attr2_i = contract_i->add_segment(contract_i, attr2_n, &error, &more); + attr2_n->destroy(attr2_n); + ck_assert(base_attr2_i); + ck_assert(error == NULL); + ck_assert(!more); + + /* request surplus segment of second base attribute */ + attr2_n = contract_r->next_segment(contract_r, 2); + ck_assert(attr2_n == NULL); + + /* compare original with reconstructed base attributes */ + type = base_attr1_i->get_type(base_attr1_i); + ck_assert(pen_type_equals(type, base_attr1_r->get_type(base_attr1_r))); + ita_attr = (ita_attr_command_t*)base_attr1_i; + ck_assert(streq(ita_attr->get_command(ita_attr), command)); + + type = base_attr2_i->get_type(base_attr2_i); + ck_assert(pen_type_equals(type, base_attr2_r->get_type(base_attr2_r))); + ck_assert(chunk_equals(base_attr2_i->get_value(base_attr2_i), + base_attr2_r->get_value(base_attr2_r))); + + /* cleanup */ + base_attr1_r->destroy(base_attr1_r); + base_attr2_r->destroy(base_attr2_r); + base_attr1_i->destroy(base_attr1_i); + base_attr2_i->destroy(base_attr2_i); + contract_i->destroy(contract_i); + contract_r->destroy(contract_r); + libimcv_deinit(); +} +END_TEST + +static struct { + bool err_f; + chunk_t frag_f; + bool err_n; + bool base_attr; + chunk_t frag_n; +} contract_invalid_tests[] = { + { FALSE, chunk_from_chars( + 0xc0, 0x00, 0x00, 0x01, 0x00, 0x00, 0x90, 0x2a, 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x0d), + FALSE, TRUE, chunk_from_chars( + 0x00, 0x00, 0x00, 0x01, 0x01 ) + }, + { FALSE, chunk_from_chars( + 0xc0, 0x00, 0x00, 0x02, 0x00, 0x00, 0x90, 0x2a, 0x00, 0x00, 0x00, 0x01, + 0x00, 0x00, 0x00, 0x0e), + TRUE, FALSE, chunk_from_chars( + 0x00, 0x00, 0x00, 0x02, 0x01 ) + }, + { TRUE, chunk_from_chars( + 0xc0, 0x00, 0x00, 0x03, 0x00, 0x00, 0x55, 0x97, 0x00, 0x00, 0x00, 0x23, + 0x00, 0x00, 0x00, 0x0d), + FALSE, FALSE, chunk_from_chars( + 0x00, 0x00, 0x00, 0x03, 0x01 ) + }, + { FALSE, chunk_from_chars( + 0xc0, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, + 0x00, 0x00, 0x00, 0x14), + FALSE, FALSE, chunk_from_chars( + 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 ) + }, + { FALSE, chunk_from_chars( + 0xc0, 0x00, 0x00, 0x05, 0x00, 0x00, 0x90, 0x2a, 0x00, 0x00, 0x00, 0x03, + 0x00, 0x00, 0x00, 0x0f), + TRUE, FALSE, chunk_from_chars( + 0x00, 0x00, 0x00, 0x05, 0x00, 0x02, 0x01 ) + }, + { FALSE, chunk_from_chars( + 0xc0, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, + 0x00, 0x00, 0x00, 0x11), + TRUE, FALSE, chunk_from_chars( + 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0xff ) + } +}; + +START_TEST(test_imcv_seg_contract_invalid) +{ + uint32_t max_seg_size = 12, max_attr_size = 100, issuer_id = 1; + pen_type_t msg_type = { PEN_ITA, PA_SUBTYPE_ITA_TEST }; + pa_tnc_attr_t *attr_f, *attr_n, *base_attr, *error; + chunk_t value_f, value_n; + seg_contract_t *contract; + uint32_t offset; + bool more; + + libimcv_init(FALSE); + value_f = contract_invalid_tests[_i].frag_f; + value_n = contract_invalid_tests[_i].frag_n; + attr_f = tcg_seg_attr_seg_env_create_from_data(value_f.len, value_f); + attr_n = tcg_seg_attr_seg_env_create_from_data(value_n.len, value_n); + ck_assert(attr_f->process(attr_f, &offset) == SUCCESS); + ck_assert(attr_n->process(attr_n, &offset) == SUCCESS); + + contract = seg_contract_create(msg_type, max_attr_size, max_seg_size, + TRUE, issuer_id, FALSE); + base_attr = contract->add_segment(contract, attr_f, &error, &more); + ck_assert(base_attr == NULL); + + if (contract_invalid_tests[_i].err_f) + { + ck_assert(error); + error->destroy(error); + } + else + { + ck_assert(error == NULL); + ck_assert(more); + base_attr = contract->add_segment(contract, attr_n, &error, &more); + if (contract_invalid_tests[_i].err_n) + { + ck_assert(error); + error->destroy(error); + } + else + { + ck_assert(error == NULL); + } + if (contract_invalid_tests[_i].base_attr) + { + ck_assert(base_attr); + base_attr->destroy(base_attr); + } + } + + /* cleanup */ + attr_f->destroy(attr_f); + attr_n->destroy(attr_n); + contract->destroy(contract); + libimcv_deinit(); +} +END_TEST + +START_TEST(test_imcv_seg_contract_mgr) +{ + char buf[BUF_LEN]; + uint32_t max_seg_size = 12, max_attr_size = 100; + pen_type_t msg_type1 = { PEN_ITA, PA_SUBTYPE_ITA_TEST }; + pen_type_t msg_type2 = { PEN_IETF, PA_SUBTYPE_IETF_OPERATING_SYSTEM }; + seg_contract_manager_t *contracts; + seg_contract_t *cx, *c1, *c2, *c3, *c4; + + contracts = seg_contract_manager_create(); + + /* add contract template as issuer */ + c1 = seg_contract_create(msg_type1, max_attr_size, max_seg_size, + TRUE, 1, FALSE); + c1->get_info_string(c1, buf, BUF_LEN, TRUE); + + contracts->add_contract(contracts, c1); + + /* received contract request for msg_type1 as responder */ + cx = contracts->get_contract(contracts, msg_type1, FALSE, 2); + ck_assert(cx == NULL); + + /* add directed contract as responder */ + c2 = seg_contract_create(msg_type1, max_attr_size, max_seg_size, + FALSE, 2, FALSE); + c2->set_responder(c2, 1); + c2->get_info_string(c2, buf, BUF_LEN, TRUE); + contracts->add_contract(contracts, c2); + + /* retrieve this contract */ + cx = contracts->get_contract(contracts, msg_type1, FALSE, 2); + ck_assert(cx == c2); + + /* received directed contract response as issuer */ + cx = contracts->get_contract(contracts, msg_type1, TRUE, 3); + ck_assert(cx == NULL); + + /* get contract template */ + cx = contracts->get_contract(contracts, msg_type1, TRUE, TNC_IMCID_ANY); + ck_assert(cx == c1); + + /* clone the contract template and as it as a directed contract */ + c3 = cx->clone(cx); + c3->set_responder(c3, 3); + c3->get_info_string(c3, buf, BUF_LEN, FALSE); + contracts->add_contract(contracts, c3); + + /* retrieve this contract */ + cx = contracts->get_contract(contracts, msg_type1, TRUE, 3); + ck_assert(cx == c3); + + /* received contract request for msg_type2 as responder */ + cx = contracts->get_contract(contracts, msg_type2, FALSE, 2); + ck_assert(cx == NULL); + + /* add directed contract as responder */ + c4 = seg_contract_create(msg_type2, max_attr_size, max_seg_size, + FALSE, 2, FALSE); + c4->set_responder(c4, 1); + contracts->add_contract(contracts, c4); + + /* retrieve this contract */ + cx = contracts->get_contract(contracts, msg_type2, FALSE, 2); + ck_assert(cx == c4); + + contracts->destroy(contracts); +} +END_TEST + +Suite *imcv_seg_suite_create() +{ + Suite *s; + TCase *tc; + + s = suite_create("imcv_seg"); + + tc = tcase_create("env"); + tcase_add_loop_test(tc, test_imcv_seg_env, 0, countof(seg_env_tests)); + suite_add_tcase(s, tc); + + tc = tcase_create("env_special"); + tcase_add_test(tc, test_imcv_seg_env_special); + suite_add_tcase(s, tc); + + tc = tcase_create("env_invalid"); + tcase_add_loop_test(tc, test_imcv_seg_env_invalid, 0, + countof(env_invalid_tests)); + suite_add_tcase(s, tc); + + tc = tcase_create("contract"); + tcase_add_loop_test(tc, test_imcv_seg_contract, 0, countof(seg_env_tests)); + suite_add_tcase(s, tc); + + tc = tcase_create("contract_special"); + tcase_add_test(tc, test_imcv_seg_contract_special); + suite_add_tcase(s, tc); + + tc = tcase_create("contract_invalid"); + tcase_add_loop_test(tc, test_imcv_seg_contract_invalid, 0, + countof(contract_invalid_tests)); + suite_add_tcase(s, tc); + + tc = tcase_create("contract_mgr"); + tcase_add_test(tc, test_imcv_seg_contract_mgr); + suite_add_tcase(s, tc); + + return s; +} diff --git a/src/libimcv/swid/swid_error.c b/src/libimcv/swid/swid_error.c new file mode 100644 index 000000000..7f3c34476 --- /dev/null +++ b/src/libimcv/swid/swid_error.c @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "swid_error.h" + +#include <bio/bio_writer.h> +#include <ietf/ietf_attr_pa_tnc_error.h> + +ENUM(swid_error_code_names, TCG_SWID_ERROR, TCG_SWID_RESPONSE_TOO_LARGE, + "SWID Error", + "SWID Subscription Denied", + "SWID Response Too Large" +); + +/** + * Described in header. + */ +pa_tnc_attr_t* swid_error_create(swid_error_code_t code, u_int32_t request_id, + u_int32_t max_attr_size, char *description) +{ + bio_writer_t *writer; + chunk_t msg_info; + pa_tnc_attr_t *attr; + pen_type_t error_code; + + error_code = pen_type_create( PEN_TCG, code); + writer = bio_writer_create(4); + writer->write_uint32(writer, request_id); + if (code == TCG_SWID_RESPONSE_TOO_LARGE) + { + writer->write_uint32(writer, max_attr_size); + } + if (description) + { + writer->write_data(writer, chunk_from_str(description)); + } + msg_info = writer->get_buf(writer); + attr = ietf_attr_pa_tnc_error_create(error_code, msg_info); + writer->destroy(writer); + + return attr; +} + diff --git a/src/libimcv/swid/swid_error.h b/src/libimcv/swid/swid_error.h new file mode 100644 index 000000000..b459ba686 --- /dev/null +++ b/src/libimcv/swid/swid_error.h @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2013 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup swid_error swid_error + * @{ @ingroup libimcv_swid + */ + +#ifndef SWID_ERROR_H_ +#define SWID_ERROR_H_ + +typedef enum swid_error_code_t swid_error_code_t; + +#include "pa_tnc/pa_tnc_attr.h" + +#include <library.h> + + +/** + * SWID Error Codes + * see section 3.14.2 of PTS Protocol: Binding to TNC IF-M Specification + */ +enum swid_error_code_t { + TCG_SWID_ERROR = 0x20, + TCG_SWID_SUBSCRIPTION_DENIED = 0x21, + TCG_SWID_RESPONSE_TOO_LARGE = 0x22 +}; + +/** + * enum name for swid_error_code_t. + */ +extern enum_name_t *swid_error_code_names; + +/** + * Creates a SWID Error Attribute + * see section 4.12 of TNC SWID Message and Attributes for IF-M + * + * @param code SWID error code + * @param request SWID request ID + * @param max_attr_size Maximum IF-M attribute size (if applicable) + * @param description Optional description string or NULL + */ +pa_tnc_attr_t* swid_error_create(swid_error_code_t code, u_int32_t request, + u_int32_t max_attr_size, char *description); + +#endif /** SWID_ERROR_H_ @}*/ diff --git a/src/libimcv/swid/swid_inventory.c b/src/libimcv/swid/swid_inventory.c new file mode 100644 index 000000000..a49286954 --- /dev/null +++ b/src/libimcv/swid/swid_inventory.c @@ -0,0 +1,454 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "swid_inventory.h" +#include "swid_tag.h" +#include "swid_tag_id.h" + +#include <collections/linked_list.h> +#include <bio/bio_writer.h> +#include <utils/debug.h> + +#include <stdio.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/stat.h> +#include <libgen.h> +#include <errno.h> + +typedef struct private_swid_inventory_t private_swid_inventory_t; + +/** + * Private data of a swid_inventory_t object. + * + */ +struct private_swid_inventory_t { + + /** + * Public swid_inventory_t interface. + */ + swid_inventory_t public; + + /** + * Full SWID tags or just SWID tag IDs + */ + bool full_tags; + + /** + * List of SWID tags or tag IDs + */ + linked_list_t *list; +}; + +/** + * Read SWID tags issued by the swid_generator tool + */ +static status_t read_swid_tags(private_swid_inventory_t *this, FILE *file) +{ + swid_tag_t *tag; + bio_writer_t *writer; + chunk_t tag_encoding, tag_file_path = chunk_empty; + bool more_tags = TRUE, last_newline; + char line[8192]; + size_t len; + + while (more_tags) + { + last_newline = TRUE; + writer = bio_writer_create(512); + while (TRUE) + { + if (!fgets(line, sizeof(line), file)) + { + more_tags = FALSE; + break; + } + len = strlen(line); + + if (last_newline && line[0] == '\n') + { + break; + } + else + { + last_newline = (line[len-1] == '\n'); + writer->write_data(writer, chunk_create(line, len)); + } + } + + tag_encoding = writer->get_buf(writer); + + if (tag_encoding.len > 1) + { + /* remove trailing newline if present */ + if (tag_encoding.ptr[tag_encoding.len - 1] == '\n') + { + tag_encoding.len--; + } + DBG3(DBG_IMC, " %.*s", tag_encoding.len, tag_encoding.ptr); + + tag = swid_tag_create(tag_encoding, tag_file_path); + this->list->insert_last(this->list, tag); + } + writer->destroy(writer); + } + + return SUCCESS; +} + +/** + * Read SWID tag or software IDs issued by the swid_generator tool + */ +static status_t read_swid_tag_ids(private_swid_inventory_t *this, FILE *file) +{ + swid_tag_id_t *tag_id; + chunk_t tag_creator, unique_sw_id, tag_file_path = chunk_empty; + char line[BUF_LEN]; + + while (TRUE) + { + char *separator; + size_t len; + + if (!fgets(line, sizeof(line), file)) + { + return SUCCESS; + } + len = strlen(line); + + /* remove trailing newline if present */ + if (len > 0 && line[len - 1] == '\n') + { + len--; + } + DBG3(DBG_IMC, " %.*s", len, line); + + separator = strchr(line, '_'); + if (!separator) + { + DBG1(DBG_IMC, "separation of regid from unique software ID failed"); + return FAILED; + } + tag_creator = chunk_create(line, separator - line); + separator++; + + unique_sw_id = chunk_create(separator, len - (separator - line)); + tag_id = swid_tag_id_create(tag_creator, unique_sw_id, tag_file_path); + this->list->insert_last(this->list, tag_id); + } +} + +static status_t generate_tags(private_swid_inventory_t *this, char *generator, + swid_inventory_t *targets, bool pretty, bool full) +{ + FILE *file; + char command[BUF_LEN]; + char doc_separator[] = "'\n\n'"; + + status_t status = SUCCESS; + + if (targets->get_count(targets) == 0) + { + /* Assemble the SWID generator command */ + if (this->full_tags) + { + snprintf(command, BUF_LEN, "%s swid --doc-separator %s%s%s", + generator, doc_separator, pretty ? " --pretty" : "", + full ? " --full" : ""); + } + else + { + snprintf(command, BUF_LEN, "%s software-id", generator); + } + + /* Open a pipe stream for reading the SWID generator output */ + file = popen(command, "r"); + if (!file) + { + DBG1(DBG_IMC, "failed to run swid_generator command"); + return NOT_SUPPORTED; + } + + if (this->full_tags) + { + DBG2(DBG_IMC, "SWID tag generation by package manager"); + status = read_swid_tags(this, file); + } + else + { + DBG2(DBG_IMC, "SWID tag ID generation by package manager"); + status = read_swid_tag_ids(this, file); + } + pclose(file); + } + else if (this->full_tags) + { + swid_tag_id_t *tag_id; + enumerator_t *enumerator; + + enumerator = targets->create_enumerator(targets); + while (enumerator->enumerate(enumerator, &tag_id)) + { + char software_id[BUF_LEN]; + chunk_t tag_creator, unique_sw_id; + + tag_creator = tag_id->get_tag_creator(tag_id); + unique_sw_id = tag_id->get_unique_sw_id(tag_id, NULL); + snprintf(software_id, BUF_LEN, "%.*s_%.*s", + tag_creator.len, tag_creator.ptr, + unique_sw_id.len, unique_sw_id.ptr); + + /* Assemble the SWID generator command */ + snprintf(command, BUF_LEN, "%s swid --software-id %s%s%s", + generator, software_id, pretty ? " --pretty" : "", + full ? " --full" : ""); + + /* Open a pipe stream for reading the SWID generator output */ + file = popen(command, "r"); + if (!file) + { + DBG1(DBG_IMC, "failed to run swid_generator command"); + return NOT_SUPPORTED; + } + status = read_swid_tags(this, file); + pclose(file); + + if (status != SUCCESS) + { + break; + } + } + enumerator->destroy(enumerator); + } + + return status; +} + +static bool collect_tags(private_swid_inventory_t *this, char *pathname, + swid_inventory_t *targets) +{ + char *rel_name, *abs_name; + struct stat st; + bool success = FALSE; + enumerator_t *enumerator; + + enumerator = enumerator_create_directory(pathname); + if (!enumerator) + { + DBG1(DBG_IMC, "directory '%s' can not be opened, %s", + pathname, strerror(errno)); + return FALSE; + } + DBG2(DBG_IMC, "entering %s", pathname); + + while (enumerator->enumerate(enumerator, &rel_name, &abs_name, &st)) + { + char * start, *stop; + chunk_t tag_creator; + chunk_t unique_sw_id = chunk_empty, tag_file_path = chunk_empty; + + if (!strstr(rel_name, "regid.")) + { + continue; + } + if (S_ISDIR(st.st_mode)) + { + /* In case of a targeted request */ + if (targets->get_count(targets)) + { + enumerator_t *target_enumerator; + swid_tag_id_t *tag_id; + bool match = FALSE; + + target_enumerator = targets->create_enumerator(targets); + while (target_enumerator->enumerate(target_enumerator, &tag_id)) + { + if (chunk_equals(tag_id->get_tag_creator(tag_id), + chunk_from_str(rel_name))) + { + match = TRUE; + break; + } + } + target_enumerator->destroy(target_enumerator); + + if (!match) + { + continue; + } + } + + if (!collect_tags(this, abs_name, targets)) + { + goto end; + } + continue; + } + + /* parse the regid filename into its components */ + start = rel_name; + stop = strchr(start, '_'); + if (!stop) + { + DBG1(DBG_IMC, " %s", rel_name); + DBG1(DBG_IMC, " '_' separator not found"); + goto end; + } + tag_creator = chunk_create(start, stop-start); + start = stop + 1; + + stop = strstr(start, ".swidtag"); + if (!stop) + { + DBG1(DBG_IMC, " %s", rel_name); + DBG1(DBG_IMC, " swidtag postfix not found"); + goto end; + } + unique_sw_id = chunk_create(start, stop-start); + tag_file_path = chunk_from_str(abs_name); + + /* In case of a targeted request */ + if (targets->get_count(targets)) + { + chunk_t target_unique_sw_id, target_tag_creator; + enumerator_t *target_enumerator; + swid_tag_id_t *tag_id; + bool match = FALSE; + + target_enumerator = targets->create_enumerator(targets); + while (target_enumerator->enumerate(target_enumerator, &tag_id)) + { + target_unique_sw_id = tag_id->get_unique_sw_id(tag_id, NULL); + target_tag_creator = tag_id->get_tag_creator(tag_id); + + if (chunk_equals(target_unique_sw_id, unique_sw_id) && + chunk_equals(target_tag_creator, tag_creator)) + { + match = TRUE; + break; + } + } + target_enumerator->destroy(target_enumerator); + + if (!match) + { + continue; + } + } + DBG2(DBG_IMC, " %s", rel_name); + + if (this->full_tags) + { + swid_tag_t *tag; + chunk_t *xml_tag; + + xml_tag = chunk_map(abs_name, FALSE); + if (!xml_tag) + { + DBG1(DBG_IMC, " opening '%s' failed: %s", abs_name, + strerror(errno)); + goto end; + } + + tag = swid_tag_create(*xml_tag, tag_file_path); + this->list->insert_last(this->list, tag); + chunk_unmap(xml_tag); + } + else + { + swid_tag_id_t *tag_id; + + tag_id = swid_tag_id_create(tag_creator, unique_sw_id, tag_file_path); + this->list->insert_last(this->list, tag_id); + } + } + success = TRUE; + +end: + enumerator->destroy(enumerator); + DBG2(DBG_IMC, "leaving %s", pathname); + + return success; +} + +METHOD(swid_inventory_t, collect, bool, + private_swid_inventory_t *this, char *directory, char *generator, + swid_inventory_t *targets, bool pretty, bool full) +{ + /** + * Tags are generated by a package manager + */ + generate_tags(this, generator, targets, pretty, full); + + /** + * Collect swidtag files by iteratively entering all directories in + * the tree under the "directory" path. + */ + return collect_tags(this, directory, targets); +} + +METHOD(swid_inventory_t, add, void, + private_swid_inventory_t *this, void *item) +{ + this->list->insert_last(this->list, item); +} + +METHOD(swid_inventory_t, get_count, int, + private_swid_inventory_t *this) +{ + return this->list->get_count(this->list); +} + +METHOD(swid_inventory_t, create_enumerator, enumerator_t*, + private_swid_inventory_t *this) +{ + return this->list->create_enumerator(this->list); +} + +METHOD(swid_inventory_t, destroy, void, + private_swid_inventory_t *this) +{ + if (this->full_tags) + { + this->list->destroy_offset(this->list, offsetof(swid_tag_t, destroy)); + } + else + { + this->list->destroy_offset(this->list, offsetof(swid_tag_id_t, destroy)); + } + free(this); +} + +/** + * See header + */ +swid_inventory_t *swid_inventory_create(bool full_tags) +{ + private_swid_inventory_t *this; + + INIT(this, + .public = { + .collect = _collect, + .add = _add, + .get_count = _get_count, + .create_enumerator = _create_enumerator, + .destroy = _destroy, + }, + .full_tags = full_tags, + .list = linked_list_create(), + ); + + return &this->public; +} diff --git a/src/libimcv/swid/swid_inventory.h b/src/libimcv/swid/swid_inventory.h new file mode 100644 index 000000000..04029070e --- /dev/null +++ b/src/libimcv/swid/swid_inventory.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup swid_inventory swid_inventory + * @{ @ingroup libimcv_swid + */ + +#ifndef SWID_INVENTORY_H_ +#define SWID_INVENTORY_H_ + +#include <library.h> + +/* Maximum size of a SWID Tag Inventory: 100 MB */ +#define SWID_MAX_ATTR_SIZE 100000000 + +typedef struct swid_inventory_t swid_inventory_t; + +/** + * Class managing SWID tag inventory + */ +struct swid_inventory_t { + + /** + * Collect the SWID tags stored on the endpoint + * + * @param directory SWID directory path + * @param generator Path to SWID generator + * @param targets List of target tag IDs + * @param pretty Generate indented XML SWID tags + * @param full Include file information in SWID tags + * @return TRUE if successful + */ + bool (*collect)(swid_inventory_t *this, char *directory, char *generator, + swid_inventory_t *targets, bool pretty, bool full); + + /** + * Collect the SWID tags stored on the endpoint + * + * @param item SWID tag or tag ID to be added + */ + void (*add)(swid_inventory_t *this, void *item); + + /** + * Get the number of collected SWID tags + * + * @return Number of collected SWID tags + */ + int (*get_count)(swid_inventory_t *this); + + /** + * Create a SWID tag inventory enumerator + * + * @return Enumerator returning either tag ID or full tag + */ + enumerator_t* (*create_enumerator)(swid_inventory_t *this); + + /** + * Destroys a swid_inventory_t object. + */ + void (*destroy)(swid_inventory_t *this); + +}; + +/** + * Creates a swid_inventory_t object + * + * @param full_tags TRUE if full tags, FALSE if tag IDs only + */ +swid_inventory_t* swid_inventory_create(bool full_tags); + +#endif /** SWID_INVENTORY_H_ @}*/ diff --git a/src/libimcv/swid/swid_tag.c b/src/libimcv/swid/swid_tag.c new file mode 100644 index 000000000..c77c75700 --- /dev/null +++ b/src/libimcv/swid/swid_tag.c @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "swid_tag.h" + +typedef struct private_swid_tag_t private_swid_tag_t; + +/** + * Private data of a swid_tag_t object. + * + */ +struct private_swid_tag_t { + + /** + * Public swid_tag_t interface. + */ + swid_tag_t public; + + /** + * UTF-8 XML encoding of SWID tag + */ + chunk_t encoding; + + /** + * Optional Tag Identifier Instance ID + */ + chunk_t instance_id; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(swid_tag_t, get_encoding, chunk_t, + private_swid_tag_t *this) +{ + return this->encoding; +} + +METHOD(swid_tag_t, get_instance_id, chunk_t, + private_swid_tag_t *this) +{ + return this->instance_id; +} + +METHOD(swid_tag_t, get_ref, swid_tag_t*, + private_swid_tag_t *this) +{ + ref_get(&this->ref); + return &this->public; +} + +METHOD(swid_tag_t, destroy, void, + private_swid_tag_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->encoding.ptr); + free(this->instance_id.ptr); + free(this); + } +} + +/** + * See header + */ +swid_tag_t *swid_tag_create(chunk_t encoding, chunk_t instance_id) +{ + private_swid_tag_t *this; + + INIT(this, + .public = { + .get_encoding = _get_encoding, + .get_instance_id = _get_instance_id, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .encoding = chunk_clone(encoding), + .ref = 1, + ); + + if (instance_id.len > 0) + { + this->instance_id = chunk_clone(instance_id); + } + + return &this->public; +} + diff --git a/src/libimcv/swid/swid_tag.h b/src/libimcv/swid/swid_tag.h new file mode 100644 index 000000000..22c14b1aa --- /dev/null +++ b/src/libimcv/swid/swid_tag.h @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup swid_tag swid_tag + * @{ @ingroup libimcv_swid + */ + +#ifndef SWID_TAG_H_ +#define SWID_TAG_H_ + +#include <library.h> + +typedef struct swid_tag_t swid_tag_t; + + +/** + * Class storing a SWID Tag + */ +struct swid_tag_t { + + /** + * Get UTF-8 XML encoding of SWID tag + * + * @return XML encoding of SWID tag + */ + chunk_t (*get_encoding)(swid_tag_t *this); + + /** + * Get the optional Tag Identifier Instance ID + * + * @return Optional Tag Identifier Instance ID + */ + chunk_t (*get_instance_id)(swid_tag_t *this); + + /** + * Get a new reference to the swid_tag object + * + * @return this, with an increased refcount + */ + swid_tag_t* (*get_ref)(swid_tag_t *this); + + /** + * Destroys a swid_tag_t object. + */ + void (*destroy)(swid_tag_t *this); + +}; + +/** + * Creates a swid_tag_t object + * + * @param encoding XML encoding of SWID tag + * @param instance_id Tag Identifier Instance ID or empty chunk + */ +swid_tag_t* swid_tag_create(chunk_t encoding, chunk_t instance_id); + +#endif /** SWID_TAG_H_ @}*/ diff --git a/src/libimcv/swid/swid_tag_id.c b/src/libimcv/swid/swid_tag_id.c new file mode 100644 index 000000000..2dc6e3141 --- /dev/null +++ b/src/libimcv/swid/swid_tag_id.c @@ -0,0 +1,114 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "swid_tag_id.h" + +typedef struct private_swid_tag_id_t private_swid_tag_id_t; + +/** + * Private data of a swid_tag_id_t object. + * + */ +struct private_swid_tag_id_t { + + /** + * Public swid_tag_id_t interface. + */ + swid_tag_id_t public; + + /** + * Tag Creator + */ + chunk_t tag_creator; + + /** + * Unique Software ID + */ + chunk_t unique_sw_id; + + /** + * Optional Tag Identifier Instance ID + */ + chunk_t instance_id; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(swid_tag_id_t, get_tag_creator, chunk_t, + private_swid_tag_id_t *this) +{ + return this->tag_creator; +} + +METHOD(swid_tag_id_t, get_unique_sw_id, chunk_t, + private_swid_tag_id_t *this, chunk_t *instance_id) +{ + if (instance_id) + { + *instance_id = this->instance_id; + } + return this->unique_sw_id; +} + +METHOD(swid_tag_id_t, get_ref, swid_tag_id_t*, + private_swid_tag_id_t *this) +{ + ref_get(&this->ref); + return &this->public; +} + +METHOD(swid_tag_id_t, destroy, void, + private_swid_tag_id_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->tag_creator.ptr); + free(this->unique_sw_id.ptr); + free(this->instance_id.ptr); + free(this); + } +} + +/** + * See header + */ +swid_tag_id_t *swid_tag_id_create(chunk_t tag_creator, chunk_t unique_sw_id, + chunk_t instance_id) +{ + private_swid_tag_id_t *this; + + INIT(this, + .public = { + .get_tag_creator = _get_tag_creator, + .get_unique_sw_id = _get_unique_sw_id, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .tag_creator = chunk_clone(tag_creator), + .unique_sw_id = chunk_clone(unique_sw_id), + .ref = 1, + ); + + if (instance_id.len > 0) + { + this->instance_id = chunk_clone(instance_id); + } + + return &this->public; +} + diff --git a/src/libimcv/swid/swid_tag_id.h b/src/libimcv/swid/swid_tag_id.h new file mode 100644 index 000000000..a2be290ae --- /dev/null +++ b/src/libimcv/swid/swid_tag_id.h @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup swid_tag_id swid_tag_id + * @{ @ingroup libimcv_swid + */ + +#ifndef SWID_TAG_ID_H_ +#define SWID_TAG_ID_H_ + +#include <library.h> + +typedef struct swid_tag_id_t swid_tag_id_t; + + +/** + * Class storing a SWID Tag ID + */ +struct swid_tag_id_t { + + /** + * Get the Tag Creator + * + * @return Tag Creator + */ + chunk_t (*get_tag_creator)(swid_tag_id_t *this); + + /** + * Get the Unique Software ID and optional Tag File Path + * + * @param instance_id Optional Tag Identifier Instance ID + * @return Unique Software ID + */ + chunk_t (*get_unique_sw_id)(swid_tag_id_t *this, chunk_t *instance_id); + + /** + * Get a new reference to the swid_tag_id object + * + * @return this, with an increased refcount + */ + swid_tag_id_t* (*get_ref)(swid_tag_id_t *this); + + /** + * Destroys a swid_tag_id_t object. + */ + void (*destroy)(swid_tag_id_t *this); + +}; + +/** + * Creates a swid_tag_id_t object + * + * @param tag_creator Tag Creator + * @param unique_sw_id Unique Software ID + * @param instance_id Tag Identifier Instance ID or empty chunk + */ +swid_tag_id_t* swid_tag_id_create(chunk_t tag_creator, chunk_t unique_sw_id, + chunk_t instance_id); + +#endif /** SWID_TAG_ID_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_aik.c b/src/libimcv/tcg/pts/tcg_pts_attr_aik.c new file mode 100644 index 000000000..194cf1b68 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_aik.c @@ -0,0 +1,266 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_aik.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_aik_t private_tcg_pts_attr_aik_t; + +/** + * Attestation Identity Key + * see section 3.13 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Attestation Identity Key (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Attestation Identity Key (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define PTS_AIK_SIZE 4 +#define PTS_AIK_FLAGS_NONE 0 +#define PTS_AIK_FLAGS_NAKED_KEY (1<<7) +/** + * Private data of an tcg_pts_attr_aik_t object. + */ +struct private_tcg_pts_attr_aik_t { + + /** + * Public members of tcg_pts_attr_aik_t + */ + tcg_pts_attr_aik_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * AIK Certificate or Public Key + */ + certificate_t *aik; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_aik_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_aik_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_aik_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_aik_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_aik_t *this) +{ + bio_writer_t *writer; + u_int8_t flags = PTS_AIK_FLAGS_NONE; + cred_encoding_type_t encoding_type = CERT_ASN1_DER; + chunk_t aik_blob; + + if (this->value.ptr) + { + return; + } + if (this->aik->get_type(this->aik) == CERT_TRUSTED_PUBKEY) + { + flags |= PTS_AIK_FLAGS_NAKED_KEY; + encoding_type = PUBKEY_SPKI_ASN1_DER; + } + if (!this->aik->get_encoding(this->aik, encoding_type, &aik_blob)) + { + DBG1(DBG_TNC, "encoding of Attestation Identity Key failed"); + aik_blob = chunk_empty; + } + writer = bio_writer_create(PTS_AIK_SIZE); + writer->write_uint8(writer, flags); + writer->write_data (writer, aik_blob); + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); + free(aik_blob.ptr); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_aik_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int8_t flags; + certificate_type_t type; + chunk_t aik_blob; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_AIK_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Attestation Identity Key"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint8(reader, &flags); + reader->read_data (reader, reader->remaining(reader), &aik_blob); + + type = (flags & PTS_AIK_FLAGS_NAKED_KEY) ? CERT_TRUSTED_PUBKEY : CERT_X509; + + this->aik = lib->creds->create(lib->creds, CRED_CERTIFICATE, type, + BUILD_BLOB_PEM, aik_blob, BUILD_END); + reader->destroy(reader); + + if (!this->aik) + { + DBG1(DBG_TNC, "parsing of Attestation Identity Key failed"); + *offset = 0; + return FAILED; + } + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_aik_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_aik_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_aik_t *this) +{ + if (ref_put(&this->ref)) + { + DESTROY_IF(this->aik); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_aik_t, get_aik, certificate_t*, + private_tcg_pts_attr_aik_t *this) +{ + return this->aik; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_aik_create(certificate_t *aik) +{ + private_tcg_pts_attr_aik_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_aik = _get_aik, + }, + .type = { PEN_TCG, TCG_PTS_AIK }, + .aik = aik->get_ref(aik), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_aik_create_from_data(size_t length, chunk_t data) +{ + private_tcg_pts_attr_aik_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_aik = _get_aik, + }, + .type = { PEN_TCG, TCG_PTS_AIK }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_aik.h b/src/libimcv/tcg/pts/tcg_pts_attr_aik.h new file mode 100644 index 000000000..b524ff321 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_aik.h @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_aik tcg_pts_attr_aik + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_AIK_H_ +#define TCG_PTS_ATTR_AIK_H_ + +typedef struct tcg_pts_attr_aik_t tcg_pts_attr_aik_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +#include <credentials/certificates/certificate.h> + +/** + * Class implementing the TCG PTS Attestation Identity Key attribute + * + */ +struct tcg_pts_attr_aik_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get AIK + * + * @return AIK Certificate or Public Key + */ + certificate_t* (*get_aik)(tcg_pts_attr_aik_t *this); + +}; + +/** + * Creates an tcg_pts_attr_aik_t object + * + * @param aik Attestation Identity Key + */ +pa_tnc_attr_t* tcg_pts_attr_aik_create(certificate_t *aik); + +/** + * Creates an tcg_pts_attr_aik_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_aik_create_from_data(size_t length, chunk_t value); + +#endif /** TCG_PTS_ATTR_AIK_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_finish.c b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_finish.c new file mode 100644 index 000000000..2a1506898 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_finish.c @@ -0,0 +1,287 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_dh_nonce_finish.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_dh_nonce_finish_t + private_tcg_pts_attr_dh_nonce_finish_t; + +/** + * PTS DH Nonce Finish + * see section 3.8.3 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Nonce Len | Selected Hash Algorithm | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | D-H Initiator Public Value ... | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | D-H Initiator Nonce ... | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_DH_NONCE_FINISH_SIZE 12 +#define PTS_DH_NONCE_FINISH_RESERVED 0x00 + +/** + * Private data of an tcg_pts_attr_dh_nonce_finish_t object. + */ +struct private_tcg_pts_attr_dh_nonce_finish_t { + + /** + * Public members of tcg_pts_attr_dh_nonce_finish_t + */ + tcg_pts_attr_dh_nonce_finish_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Selected Hashing Algorithm + */ + pts_meas_algorithms_t hash_algo; + + /** + * DH Initiator Public Value + */ + chunk_t initiator_value; + + /** + * DH Initiator Nonce + */ + chunk_t initiator_nonce; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_dh_nonce_finish_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_DH_NONCE_FINISH_SIZE); + writer->write_uint8 (writer, PTS_DH_NONCE_FINISH_RESERVED); + writer->write_uint8 (writer, this->initiator_nonce.len); + writer->write_uint16(writer, this->hash_algo); + writer->write_data (writer, this->initiator_value); + writer->write_data (writer, this->initiator_nonce); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_dh_nonce_finish_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int8_t reserved, nonce_len; + u_int16_t hash_algo; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_DH_NONCE_FINISH_SIZE) + { + DBG1(DBG_TNC, "insufficient data for PTS DH Nonce Finish"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &reserved); + reader->read_uint8 (reader, &nonce_len); + reader->read_uint16(reader, &hash_algo); + reader->read_data(reader, reader->remaining(reader) - nonce_len, + &this->initiator_value); + reader->read_data(reader, nonce_len, &this->initiator_nonce); + this->hash_algo = hash_algo; + this->initiator_value = chunk_clone(this->initiator_value); + this->initiator_nonce = chunk_clone(this->initiator_nonce); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_dh_nonce_finish_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this->initiator_value.ptr); + free(this->initiator_nonce.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_dh_nonce_finish_t, get_hash_algo, pts_meas_algorithms_t, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + return this->hash_algo; +} + +METHOD(tcg_pts_attr_dh_nonce_finish_t, get_initiator_value, chunk_t, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + return this->initiator_value; +} + +METHOD(tcg_pts_attr_dh_nonce_finish_t, get_initiator_nonce, chunk_t, + private_tcg_pts_attr_dh_nonce_finish_t *this) +{ + return this->initiator_nonce; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_dh_nonce_finish_create( + pts_meas_algorithms_t hash_algo, + chunk_t initiator_value, + chunk_t initiator_nonce) +{ + private_tcg_pts_attr_dh_nonce_finish_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_hash_algo = _get_hash_algo, + .get_initiator_nonce = _get_initiator_nonce, + .get_initiator_value = _get_initiator_value, + }, + .type = { PEN_TCG, TCG_PTS_DH_NONCE_FINISH }, + .hash_algo = hash_algo, + .initiator_value = initiator_value, + .initiator_nonce = chunk_clone(initiator_nonce), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_dh_nonce_finish_create_from_data(size_t length, + chunk_t value) +{ + private_tcg_pts_attr_dh_nonce_finish_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_hash_algo = _get_hash_algo, + .get_initiator_nonce = _get_initiator_nonce, + .get_initiator_value = _get_initiator_value, + }, + .type = { PEN_TCG, TCG_PTS_DH_NONCE_FINISH }, + .length = length, + .value = chunk_clone(value), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_finish.h b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_finish.h new file mode 100644 index 000000000..78b5025bc --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_finish.h @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_dh_nonce_finish tcg_pts_attr_dh_nonce_finish + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_DH_NONCE_FINISH_H_ +#define TCG_PTS_ATTR_DH_NONCE_FINISH_H_ + +typedef struct tcg_pts_attr_dh_nonce_finish_t tcg_pts_attr_dh_nonce_finish_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" +#include "pts/pts_meas_algo.h" + +/** + * Class implementing the TCG PTS DH Nonce Finish Attribute + */ +struct tcg_pts_attr_dh_nonce_finish_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get nonce length + * + * @return Length of nonce + */ + u_int8_t (*get_nonce_len)(tcg_pts_attr_dh_nonce_finish_t *this); + + /** + * Get selected hash algorithm + * + * @return Selected hash algorithm + */ + pts_meas_algorithms_t (*get_hash_algo)(tcg_pts_attr_dh_nonce_finish_t *this); + + /** + * Get DH Initiator Public Value + * + * @return DH Initiator Public Value + */ + chunk_t (*get_initiator_value)(tcg_pts_attr_dh_nonce_finish_t *this); + + /** + * Get DH Initiator Nonce + * + * @return DH Initiator Nonce + */ + chunk_t (*get_initiator_nonce)(tcg_pts_attr_dh_nonce_finish_t *this); + +}; + +/** + * Creates an tcg_pts_attr_dh_nonce_finish_t object + * + * @param hash_algo Selected hash algorithm + * @param initiator_value DH Initiator Public Value + * @param initiator_nonce DH Initiator Nonce + */ +pa_tnc_attr_t* tcg_pts_attr_dh_nonce_finish_create( + pts_meas_algorithms_t hash_algo, + chunk_t initiator_value, + chunk_t initiator_nonce); + +/** + * Creates an tcg_pts_attr_dh_nonce_finish_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_dh_nonce_finish_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_DH_NONCE_FINISH_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_req.c b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_req.c new file mode 100644 index 000000000..0349ce53e --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_req.c @@ -0,0 +1,258 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_dh_nonce_params_req.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_dh_nonce_params_req_t + private_tcg_pts_attr_dh_nonce_params_req_t; + +/** + * PTS DH Nonce Parameters Request + * see section 3.8.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Min. Nonce Len | D-H Group Set | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_DH_NONCE_PARAMS_REQ_SIZE 4 +#define PTS_DH_NONCE_PARAMS_REQ_RESERVED 0x00 + +/** + * Private data of an tcg_pts_attr_dh_nonce_params_req_t object. + */ +struct private_tcg_pts_attr_dh_nonce_params_req_t { + + /** + * Public members of tcg_pts_attr_dh_nonce_params_req_t + */ + tcg_pts_attr_dh_nonce_params_req_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Minimum acceptable length of nonce + */ + u_int8_t min_nonce_len; + + /** + * Diffie Hellman group set + */ + pts_dh_group_t dh_groups; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_dh_nonce_params_req_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_DH_NONCE_PARAMS_REQ_SIZE); + writer->write_uint8 (writer, PTS_DH_NONCE_PARAMS_REQ_RESERVED); + writer->write_uint8 (writer, this->min_nonce_len); + writer->write_uint16(writer, this->dh_groups); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_dh_nonce_params_req_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int8_t reserved; + u_int16_t dh_groups; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_DH_NONCE_PARAMS_REQ_SIZE) + { + DBG1(DBG_TNC, "insufficient data for PTS DH Nonce Parameters Request"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint8(reader, &reserved); + reader->read_uint8(reader, &this->min_nonce_len); + reader->read_uint16(reader, &dh_groups); + this->dh_groups = dh_groups; + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_dh_nonce_params_req_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_dh_nonce_params_req_t, get_min_nonce_len, u_int8_t, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + return this->min_nonce_len; +} + +METHOD(tcg_pts_attr_dh_nonce_params_req_t, get_dh_groups, pts_dh_group_t, + private_tcg_pts_attr_dh_nonce_params_req_t *this) +{ + return this->dh_groups; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_req_create(u_int8_t min_nonce_len, + pts_dh_group_t dh_groups) +{ + private_tcg_pts_attr_dh_nonce_params_req_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_min_nonce_len = _get_min_nonce_len, + .get_dh_groups = _get_dh_groups, + }, + .type = { PEN_TCG, TCG_PTS_DH_NONCE_PARAMS_REQ }, + .min_nonce_len = min_nonce_len, + .dh_groups = dh_groups, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_req_create_from_data(size_t length, + chunk_t value) +{ + private_tcg_pts_attr_dh_nonce_params_req_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_min_nonce_len = _get_min_nonce_len, + .get_dh_groups = _get_dh_groups, + }, + .type = { PEN_TCG, TCG_PTS_DH_NONCE_PARAMS_REQ }, + .length = length, + .value = chunk_clone(value), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_req.h b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_req.h new file mode 100644 index 000000000..4396bf687 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_req.h @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_dh_nonce_params_req tcg_pts_attr_dh_nonce_params_req + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_ +#define TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_ + +typedef struct tcg_pts_attr_dh_nonce_params_req_t + tcg_pts_attr_dh_nonce_params_req_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" +#include "pts/pts_dh_group.h" + +/** + * Class implementing the TCG PTS DH Nonce Parameters Request Attribute + */ +struct tcg_pts_attr_dh_nonce_params_req_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get Minimum nonce length + * + * @return Minimum acceptable length of nonce + */ + u_int8_t (*get_min_nonce_len)(tcg_pts_attr_dh_nonce_params_req_t *this); + + /** + * Get supported Diffie Hellman Groups + * + * @return Supported Diffie Hellman Groups + */ + pts_dh_group_t (*get_dh_groups)(tcg_pts_attr_dh_nonce_params_req_t *this); +}; + +/** + * Creates an tcg_pts_attr_dh_nonce_params_req_t object + * + * @param min_nonce_len Minimum acceptable length of nonce + * @param dh_groups Initiator's supported DH groups + */ +pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_req_create(u_int8_t min_nonce_len, + pts_dh_group_t dh_groups); + +/** + * Creates an tcg_pts_attr_dh_nonce_params_req_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_req_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_DH_NONCE_PARAMS_REQ_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_resp.c b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_resp.c new file mode 100644 index 000000000..fa1dbdd3a --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_resp.c @@ -0,0 +1,306 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_dh_nonce_params_resp.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_dh_nonce_params_resp_t + private_tcg_pts_attr_dh_nonce_params_resp_t; + +/** + * PTS DH Nonce Parameters Response + * see section 3.8.2 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Nonce Len | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Selected D-H Group | Hash Algorithm Set | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | D-H Responder Nonce ... | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | D-H Responder Public Value ... | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_DH_NONCE_PARAMS_RESP_SIZE 16 +#define PTS_DH_NONCE_PARAMS_RESP_RESERVED 0x0000 + +/** + * Private data of an tcg_pts_attr_dh_nonce_params_resp_t object. + */ +struct private_tcg_pts_attr_dh_nonce_params_resp_t { + + /** + * Public members of tcg_pts_attr_dh_nonce_params_resp_t + */ + tcg_pts_attr_dh_nonce_params_resp_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Selected Diffie Hellman group + */ + pts_dh_group_t dh_group; + + /** + * Supported Hashing Algorithms + */ + pts_meas_algorithms_t hash_algo_set; + + /** + * DH Responder Nonce + */ + chunk_t responder_nonce; + + /** + * DH Responder Public Value + */ + chunk_t responder_value; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_dh_nonce_params_resp_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_DH_NONCE_PARAMS_RESP_SIZE); + writer->write_uint24(writer, PTS_DH_NONCE_PARAMS_RESP_RESERVED); + writer->write_uint8 (writer, this->responder_nonce.len); + writer->write_uint16(writer, this->dh_group); + writer->write_uint16(writer, this->hash_algo_set); + writer->write_data (writer, this->responder_nonce); + writer->write_data (writer, this->responder_value); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_dh_nonce_params_resp_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t reserved; + u_int8_t nonce_len; + u_int16_t dh_group, hash_algo_set; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_DH_NONCE_PARAMS_RESP_SIZE) + { + DBG1(DBG_TNC, "insufficient data for PTS DH Nonce Parameters Response"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint24(reader, &reserved); + reader->read_uint8 (reader, &nonce_len); + reader->read_uint16(reader, &dh_group); + reader->read_uint16(reader, &hash_algo_set); + reader->read_data(reader, nonce_len, &this->responder_nonce); + reader->read_data(reader, reader->remaining(reader), &this->responder_value); + this->dh_group = dh_group; + this->hash_algo_set = hash_algo_set; + this->responder_nonce = chunk_clone(this->responder_nonce); + this->responder_value = chunk_clone(this->responder_value); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_dh_nonce_params_resp_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this->responder_nonce.ptr); + free(this->responder_value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_dh_group, pts_dh_group_t, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->dh_group; +} + +METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_hash_algo_set, + pts_meas_algorithms_t, private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->hash_algo_set; +} + +METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_responder_nonce, chunk_t, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->responder_nonce; +} + +METHOD(tcg_pts_attr_dh_nonce_params_resp_t, get_responder_value, chunk_t, + private_tcg_pts_attr_dh_nonce_params_resp_t *this) +{ + return this->responder_value; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_resp_create(pts_dh_group_t dh_group, + pts_meas_algorithms_t hash_algo_set, + chunk_t responder_nonce, + chunk_t responder_value) +{ + private_tcg_pts_attr_dh_nonce_params_resp_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_dh_group = _get_dh_group, + .get_hash_algo_set = _get_hash_algo_set, + .get_responder_nonce = _get_responder_nonce, + .get_responder_value = _get_responder_value, + }, + .type = { PEN_TCG, TCG_PTS_DH_NONCE_PARAMS_RESP }, + .dh_group = dh_group, + .hash_algo_set = hash_algo_set, + .responder_nonce = chunk_clone(responder_nonce), + .responder_value = responder_value, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_dh_nonce_params_resp_create_from_data(size_t length, + chunk_t value) +{ + private_tcg_pts_attr_dh_nonce_params_resp_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_dh_group = _get_dh_group, + .get_hash_algo_set = _get_hash_algo_set, + .get_responder_nonce = _get_responder_nonce, + .get_responder_value = _get_responder_value, + }, + .type = { PEN_TCG, TCG_PTS_DH_NONCE_PARAMS_RESP }, + .length = length, + .value = chunk_clone(value), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h new file mode 100644 index 000000000..b548a81f0 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_dh_nonce_params_resp tcg_pts_attr_dh_nonce_params_resp + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_DH_NONCE_PARAMS_RESP_H_ +#define TCG_PTS_ATTR_DH_NONCE_PARAMS_RESP_H_ + +typedef struct tcg_pts_attr_dh_nonce_params_resp_t + tcg_pts_attr_dh_nonce_params_resp_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" +#include "pts/pts_dh_group.h" +#include "pts/pts_meas_algo.h" + +/** + * Class implementing the TCG PTS DH Nonce Parameters Response Attribute + */ +struct tcg_pts_attr_dh_nonce_params_resp_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get selected Diffie Hellman Group + * + * @return Selected Diffie Hellman Group + */ + pts_dh_group_t (*get_dh_group)(tcg_pts_attr_dh_nonce_params_resp_t *this); + + /** + * Get supported hash algorithms + * + * @return Hash algorithm set + */ + pts_meas_algorithms_t (*get_hash_algo_set)( + tcg_pts_attr_dh_nonce_params_resp_t *this); + + /** + * Get DH Responder Nonce + * + * @return DH Responder Nonce + */ + chunk_t (*get_responder_nonce)(tcg_pts_attr_dh_nonce_params_resp_t *this); + + /** + * Get DH Responder Public Value + * + * @return DH Responder Public Value + */ + chunk_t (*get_responder_value)(tcg_pts_attr_dh_nonce_params_resp_t *this); + +}; + +/** + * Creates an tcg_pts_attr_dh_nonce_params_resp_t object + * + * @param dh_group Selected DH group + * @param hash_algo_set Set of supported hash algorithms + * @param responder_nonce DH Responder Nonce + * @param responder_value DH Responder Public value + */ +pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_resp_create(pts_dh_group_t dh_group, + pts_meas_algorithms_t hash_algo_set, + chunk_t responder_nonce, + chunk_t responder_value); + +/** + * Creates an tcg_pts_attr_dh_nonce_params_resp_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_dh_nonce_params_resp_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_DH_NONCE_PARAMS_RESP_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_file_meas.c b/src/libimcv/tcg/pts/tcg_pts_attr_file_meas.c new file mode 100644 index 000000000..5b4cc273b --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_file_meas.c @@ -0,0 +1,356 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_file_meas.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_file_meas_t private_tcg_pts_attr_file_meas_t; + +/** + * File Measurement + * see section 3.19.2 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Number of Files included | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Number of Files included | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Request ID | Measurement Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement #1 (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Filename Length | Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement #2 (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Filename Length | Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ........................... + */ + +#define PTS_FILE_MEAS_SIZE 12 + +/** + * Private data of an tcg_pts_attr_file_meas_t object. + */ +struct private_tcg_pts_attr_file_meas_t { + + /** + * Public members of tcg_pts_attr_file_meas_t + */ + tcg_pts_attr_file_meas_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Offset up to which attribute value has been processed + */ + size_t offset; + + /** + * Current position of attribute value pointer + */ + chunk_t value; + + /** + * Contains complete attribute or current segment + */ + chunk_t segment; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Request ID + */ + uint16_t request_id; + + /** + * Measurement Length + */ + uint16_t meas_len; + + /** + * Number of Files in attribute + */ + uint64_t count; + + /** + * PTS File Measurements + */ + pts_file_meas_t *measurements; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_file_meas_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_file_meas_t *this) +{ + bio_writer_t *writer; + enumerator_t *enumerator; + u_int64_t count; + u_int16_t request_id; + char *filename; + chunk_t measurement; + bool first = TRUE; + + if (this->value.ptr) + { + return; + } + count = this->measurements->get_file_count(this->measurements); + request_id = this->measurements->get_request_id(this->measurements); + + writer = bio_writer_create(PTS_FILE_MEAS_SIZE); + writer->write_uint64(writer, count); + writer->write_uint16(writer, request_id); + + enumerator = this->measurements->create_enumerator(this->measurements); + while (enumerator->enumerate(enumerator, &filename, &measurement)) + { + if (first) + { + writer->write_uint16(writer, measurement.len); + first = FALSE; + } + writer->write_data (writer, measurement); + writer->write_data16(writer, chunk_create(filename, strlen(filename))); + } + enumerator->destroy(enumerator); + + if (first) + { + /* no attached measurements */ + writer->write_uint16(writer, 0); + } + + this->value = writer->extract_buf(writer); + this->segment = this->value; + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_file_meas_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + chunk_t measurement, filename; + status_t status = NEED_MORE; + char buf[BUF_LEN]; + size_t len; + + if (this->offset == 0) + { + if (this->length < PTS_FILE_MEAS_SIZE) + { + DBG1(DBG_TNC, "insufficient data for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + *offset = this->offset; + return FAILED; + } + if (this->value.len < PTS_FILE_MEAS_SIZE) + { + return NEED_MORE; + } + reader = bio_reader_create(this->value); + reader->read_uint64(reader, &this->count); + reader->read_uint16(reader, &this->request_id); + reader->read_uint16(reader, &this->meas_len); + this->offset = PTS_FILE_MEAS_SIZE; + this->value = reader->peek(reader); + reader->destroy(reader); + } + + this->measurements = pts_file_meas_create(this->request_id); + reader = bio_reader_create(this->value); + + while (this->count) + { + if (!reader->read_data(reader, this->meas_len, &measurement) || + !reader->read_data16(reader, &filename)) + { + goto end; + } + this->offset += this->value.len - reader->remaining(reader); + this->value = reader->peek(reader); + + len = min(filename.len, BUF_LEN-1); + memcpy(buf, filename.ptr, len); + buf[len] = '\0'; + this->measurements->add(this->measurements, buf, measurement); + this->count--; + } + + if (this->length != this->offset) + { + DBG1(DBG_TNC, "inconsistent length for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + *offset = this->offset; + status = FAILED; + } + status = SUCCESS; + +end: + reader->destroy(reader); + return status; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_file_meas_t *this, chunk_t segment) +{ + this->value = chunk_cat("cc", this->value, segment); + chunk_free(&this->segment); + this->segment = this->value; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_file_meas_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_file_meas_t *this) +{ + if (ref_put(&this->ref)) + { + DESTROY_IF(this->measurements); + free(this->segment.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_file_meas_t, get_measurements, pts_file_meas_t*, + private_tcg_pts_attr_file_meas_t *this) +{ + return this->measurements; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_file_meas_create(pts_file_meas_t *measurements) +{ + private_tcg_pts_attr_file_meas_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_measurements = _get_measurements, + }, + .type = { PEN_TCG, TCG_PTS_FILE_MEAS }, + .request_id = measurements->get_request_id(measurements), + .count = measurements->get_file_count(measurements), + .measurements = measurements, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_file_meas_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_file_meas_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_measurements = _get_measurements, + }, + .type = { PEN_TCG, TCG_PTS_FILE_MEAS }, + .length = length, + .segment = chunk_clone(data), + .ref = 1, + ); + + /* received either complete attribute value or first segment */ + this->value = this->segment; + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_file_meas.h b/src/libimcv/tcg/pts/tcg_pts_attr_file_meas.h new file mode 100644 index 000000000..d399fecbb --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_file_meas.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_file_meas tcg_pts_attr_file_meas + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_FILE_MEAS_H_ +#define TCG_PTS_ATTR_FILE_MEAS_H_ + +typedef struct tcg_pts_attr_file_meas_t tcg_pts_attr_file_meas_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" +#include "pts/pts.h" +#include "pts/pts_file_meas.h" + +/** + * Class implementing the TCG PTS File Measurement attribute + * + */ +struct tcg_pts_attr_file_meas_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get PTS File Measurements + * + * @return PTS File Measurements + */ + pts_file_meas_t* (*get_measurements)(tcg_pts_attr_file_meas_t *this); + +}; + +/** + * Creates an tcg_pts_attr_file_meas_t object + * + * @param measurements PTS File Measurements + */ +pa_tnc_attr_t* tcg_pts_attr_file_meas_create(pts_file_meas_t *measurements); + +/** + * Creates an tcg_pts_attr_file_meas_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_file_meas_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_FILE_MEAS_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_gen_attest_evid.c b/src/libimcv/tcg/pts/tcg_pts_attr_gen_attest_evid.c new file mode 100644 index 000000000..b7b4d7e3f --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_gen_attest_evid.c @@ -0,0 +1,225 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_gen_attest_evid.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_gen_attest_evid_t + private_tcg_pts_attr_gen_attest_evid_t; + +/** + * Generate Attestation Evidence + * see section 3.14.2 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_GEN_ATTEST_EVID_SIZE 4 +#define PTS_GEN_ATTEST_EVID_RESERVED 0x00 + +/** + * Private data of an tcg_pts_attr_gen_attest_evid_t object. + */ +struct private_tcg_pts_attr_gen_attest_evid_t { + + /** + * Public members of tcg_pts_attr_gen_attest_evid_t + */ + tcg_pts_attr_gen_attest_evid_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_gen_attest_evid_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_gen_attest_evid_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_gen_attest_evid_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_gen_attest_evid_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_gen_attest_evid_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_GEN_ATTEST_EVID_SIZE); + writer->write_uint32 (writer, PTS_GEN_ATTEST_EVID_RESERVED); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_gen_attest_evid_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t reserved; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_GEN_ATTEST_EVID_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Generate Attestation Evidence"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint32 (reader, &reserved); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_gen_attest_evid_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_gen_attest_evid_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_gen_attest_evid_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_gen_attest_evid_create() +{ + private_tcg_pts_attr_gen_attest_evid_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + }, + .type = { PEN_TCG, TCG_PTS_GEN_ATTEST_EVID }, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_gen_attest_evid_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_gen_attest_evid_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + }, + .type = { PEN_TCG, TCG_PTS_GEN_ATTEST_EVID }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_gen_attest_evid.h b/src/libimcv/tcg/pts/tcg_pts_attr_gen_attest_evid.h new file mode 100644 index 000000000..971abd2a3 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_gen_attest_evid.h @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_gen_attest_evid tcg_pts_attr_gen_attest_evid + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_GEN_ATTEST_EVID_H_ +#define TCG_PTS_ATTR_GEN_ATTEST_EVID_H_ + +typedef struct tcg_pts_attr_gen_attest_evid_t tcg_pts_attr_gen_attest_evid_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Generate Attestation Evidence Attribute + * + */ +struct tcg_pts_attr_gen_attest_evid_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; +}; + +/** + * Creates an tcg_pts_attr_gen_attest_evid_t object + */ +pa_tnc_attr_t* tcg_pts_attr_gen_attest_evid_create(); + +/** + * Creates an tcg_pts_attr_gen_attest_evid_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_gen_attest_evid_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_GEN_ATTEST_EVID_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_get_aik.c b/src/libimcv/tcg/pts/tcg_pts_attr_get_aik.c new file mode 100644 index 000000000..8fda2b1f5 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_get_aik.c @@ -0,0 +1,222 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_get_aik.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_get_aik_t private_tcg_pts_attr_get_aik_t; + +/** + * Get Attestation Identity Key + * see section 3.12 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define PTS_GET_AIK_SIZE 4 +#define PTS_GET_AIK_RESERVED 0x00000000 + +/** + * Private data of an tcg_pts_attr_get_aik_t object. + */ +struct private_tcg_pts_attr_get_aik_t { + + /** + * Public members of tcg_pts_attr_get_aik_t + */ + tcg_pts_attr_get_aik_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_get_aik_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_get_aik_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_get_aik_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_get_aik_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_get_aik_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_GET_AIK_SIZE); + writer->write_uint32 (writer, PTS_GET_AIK_RESERVED); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_get_aik_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_get_aik_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t reserved; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_GET_AIK_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Get AIK"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint32 (reader, &reserved); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_get_aik_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_get_aik_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_get_aik_create() +{ + private_tcg_pts_attr_get_aik_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + }, + .type = { PEN_TCG, TCG_PTS_GET_AIK }, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_get_aik_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_get_aik_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + }, + .type = { PEN_TCG, TCG_PTS_GET_AIK }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_get_aik.h b/src/libimcv/tcg/pts/tcg_pts_attr_get_aik.h new file mode 100644 index 000000000..923fd039f --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_get_aik.h @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_get_aik tcg_pts_attr_get_aik + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_GET_AIK_H_ +#define TCG_PTS_ATTR_GET_AIK_H_ + +typedef struct tcg_pts_attr_get_aik_t tcg_pts_attr_get_aik_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Get Attestation Identity Key Attribute + * + */ +struct tcg_pts_attr_get_aik_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; +}; + +/** + * Creates an tcg_pts_attr_get_aik_t object + */ +pa_tnc_attr_t* tcg_pts_attr_get_aik_create(); + +/** + * Creates an tcg_pts_attr_get_aik_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_get_aik_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_GET_AIK_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_get_tpm_version_info.c b/src/libimcv/tcg/pts/tcg_pts_attr_get_tpm_version_info.c new file mode 100644 index 000000000..a4c9dba87 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_get_tpm_version_info.c @@ -0,0 +1,225 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_get_tpm_version_info.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_get_tpm_version_info_t + private_tcg_pts_attr_get_tpm_version_info_t; + +/** + * Get TPM Version Information + * see section 3.10 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_GET_TPM_VER_INFO_SIZE 4 +#define PTS_GET_TPM_VER_INFO_RESERVED 0x00 + +/** + * Private data of an tcg_pts_attr_get_tpm_version_info_t object. + */ +struct private_tcg_pts_attr_get_tpm_version_info_t { + + /** + * Public members of tcg_pts_attr_get_tpm_version_info_t + */ + tcg_pts_attr_get_tpm_version_info_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_get_tpm_version_info_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_get_tpm_version_info_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_get_tpm_version_info_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_get_tpm_version_info_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_get_tpm_version_info_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_GET_TPM_VER_INFO_SIZE); + writer->write_uint32 (writer, PTS_GET_TPM_VER_INFO_RESERVED); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_get_tpm_version_info_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t reserved; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_GET_TPM_VER_INFO_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Get TPM Version Information"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint32 (reader, &reserved); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_get_tpm_version_info_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_get_tpm_version_info_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_get_tpm_version_info_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_get_tpm_version_info_create() +{ + private_tcg_pts_attr_get_tpm_version_info_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + }, + .type = { PEN_TCG, TCG_PTS_GET_TPM_VERSION_INFO }, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_get_tpm_version_info_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_get_tpm_version_info_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + }, + .type = { PEN_TCG, TCG_PTS_GET_TPM_VERSION_INFO }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_get_tpm_version_info.h b/src/libimcv/tcg/pts/tcg_pts_attr_get_tpm_version_info.h new file mode 100644 index 000000000..19fb5a4e8 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_get_tpm_version_info.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_get_tpm_version_info tcg_pts_attr_get_tpm_version_info + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_GET_TPM_VERSION_INFO_H_ +#define TCG_PTS_ATTR_GET_TPM_VERSION_INFO_H_ + +typedef struct tcg_pts_attr_get_tpm_version_info_t + tcg_pts_attr_get_tpm_version_info_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Get TPM Version Info Attribute + * + */ +struct tcg_pts_attr_get_tpm_version_info_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; +}; + +/** + * Creates an tcg_pts_attr_get_tpm_version_info_t object + */ +pa_tnc_attr_t* tcg_pts_attr_get_tpm_version_info_create(); + +/** + * Creates an tcg_pts_attr_get_tpm_version_info_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_get_tpm_version_info_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_GET_TPM_VERSION_INFO_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_meas_algo.c b/src/libimcv/tcg/pts/tcg_pts_attr_meas_algo.c new file mode 100644 index 000000000..8b0502a91 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_meas_algo.c @@ -0,0 +1,243 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_meas_algo.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_meas_algo_t private_tcg_pts_attr_meas_algo_t; + +/** + * PTS Measurement Algorithm + * see section 3.9.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Hash Algorithm Set | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_MEAS_ALGO_SIZE 4 +#define PTS_MEAS_ALGO_RESERVED 0x0000 + +/** + * Private data of an tcg_pts_attr_meas_algo_t object. + */ +struct private_tcg_pts_attr_meas_algo_t { + + /** + * Public members of tcg_pts_attr_meas_algo_t + */ + tcg_pts_attr_meas_algo_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Set of algorithms + */ + pts_meas_algorithms_t algorithms; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_meas_algo_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_meas_algo_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_meas_algo_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_meas_algo_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_meas_algo_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_MEAS_ALGO_SIZE); + writer->write_uint16(writer, PTS_MEAS_ALGO_RESERVED); + writer->write_uint16(writer, this->algorithms); + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_meas_algo_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int16_t reserved, algorithms; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_MEAS_ALGO_SIZE) + { + DBG1(DBG_TNC, "insufficient data for PTS Measurement Algorithm"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint16(reader, &reserved); + reader->read_uint16(reader, &algorithms); + this->algorithms = algorithms; + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_meas_algo_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_meas_algo_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_meas_algo_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_meas_algo_t, get_algorithms, pts_meas_algorithms_t, + private_tcg_pts_attr_meas_algo_t *this) +{ + return this->algorithms; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_meas_algo_create(pts_meas_algorithms_t algorithms, + bool selection) +{ + private_tcg_pts_attr_meas_algo_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_algorithms = _get_algorithms, + }, + .type = { PEN_TCG, + selection ? TCG_PTS_MEAS_ALGO_SELECTION : TCG_PTS_MEAS_ALGO }, + .algorithms = algorithms, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_meas_algo_create_from_data(size_t length, + chunk_t data, + bool selection) +{ + private_tcg_pts_attr_meas_algo_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_algorithms = _get_algorithms, + }, + .type = { PEN_TCG, + selection ? TCG_PTS_MEAS_ALGO_SELECTION : TCG_PTS_MEAS_ALGO }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_meas_algo.h b/src/libimcv/tcg/pts/tcg_pts_attr_meas_algo.h new file mode 100644 index 000000000..bc15a9bb4 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_meas_algo.h @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_meas_algo tcg_pts_attr_meas_algo + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_MEAS_ALGO_H_ +#define TCG_PTS_ATTR_MEAS_ALGO_H_ + +typedef struct tcg_pts_attr_meas_algo_t tcg_pts_attr_meas_algo_t; + +#include "tcg/tcg_attr.h" +#include "pts/pts_meas_algo.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG Measurement Algorithm Attribute + * + */ +struct tcg_pts_attr_meas_algo_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get PTS Measurement Algorithm Set + * + * @return set of algorithms + */ + pts_meas_algorithms_t (*get_algorithms)(tcg_pts_attr_meas_algo_t *this); + +}; + +/** + * Creates an tcg_pts_attr_meas_algo_t object + * + * @param algorithms set of algorithms + * @param selection TRUE if a selection + */ +pa_tnc_attr_t* tcg_pts_attr_meas_algo_create(pts_meas_algorithms_t algorithms, + bool selection); + +/** + * Creates an tcg_pts_attr_meas_algo_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + * @param selection TRUE if a selection + */ +pa_tnc_attr_t* tcg_pts_attr_meas_algo_create_from_data(size_t length, + chunk_t value, + bool selection); + +#endif /** TCG_PTS_ATTR_MEAS_ALGO_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_proto_caps.c b/src/libimcv/tcg/pts/tcg_pts_attr_proto_caps.c new file mode 100644 index 000000000..0a562c0bc --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_proto_caps.c @@ -0,0 +1,244 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_proto_caps.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_proto_caps_t private_tcg_pts_attr_proto_caps_t; + +/** + * PTS Protocol Capabilities + * see section 3.7 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved |C|V|D|T|X| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_PROTO_CAPS_SIZE 4 +#define PTS_PROTO_CAPS_RESERVED 0x0000 + +/** + * Private data of an tcg_pts_attr_proto_caps_t object. + */ +struct private_tcg_pts_attr_proto_caps_t { + + /** + * Public members of tcg_pts_attr_proto_caps_t + */ + tcg_pts_attr_proto_caps_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Set of flags + */ + pts_proto_caps_flag_t flags; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_proto_caps_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_proto_caps_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_proto_caps_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_proto_caps_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_proto_caps_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_PROTO_CAPS_SIZE); + writer->write_uint16(writer, PTS_PROTO_CAPS_RESERVED); + writer->write_uint16(writer, this->flags); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_proto_caps_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int16_t reserved, flags; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_PROTO_CAPS_SIZE) + { + DBG1(DBG_TNC, "insufficient data for PTS Protocol Capabilities"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint16(reader, &reserved); + reader->read_uint16(reader, &flags); + this->flags = flags; + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_proto_caps_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_proto_caps_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_proto_caps_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_proto_caps_t, get_flags, pts_proto_caps_flag_t, + private_tcg_pts_attr_proto_caps_t *this) +{ + return this->flags; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_proto_caps_create(pts_proto_caps_flag_t flags, + bool request) +{ + private_tcg_pts_attr_proto_caps_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_flags = _get_flags, + }, + .type = { PEN_TCG, + request ? TCG_PTS_REQ_PROTO_CAPS : TCG_PTS_PROTO_CAPS }, + .flags = flags, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_proto_caps_create_from_data(size_t length, + chunk_t data, + bool request) +{ + private_tcg_pts_attr_proto_caps_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_flags = _get_flags, + }, + .type = { PEN_TCG, + request ? TCG_PTS_REQ_PROTO_CAPS : TCG_PTS_PROTO_CAPS }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_proto_caps.h b/src/libimcv/tcg/pts/tcg_pts_attr_proto_caps.h new file mode 100644 index 000000000..11ed22810 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_proto_caps.h @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_proto_caps tcg_pts_attr_proto_caps + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_PROTO_CAPS_H_ +#define TCG_PTS_ATTR_PROTO_CAPS_H_ + +typedef struct tcg_pts_attr_proto_caps_t tcg_pts_attr_proto_caps_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" +#include "pts/pts_proto_caps.h" + +/** + * Class implementing the TCG PTS Protocol Capabilities Attribute + */ +struct tcg_pts_attr_proto_caps_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get PTS procol capabilities flags + * + * @return set of flags + */ + pts_proto_caps_flag_t (*get_flags)(tcg_pts_attr_proto_caps_t *this); + +}; + +/** + * Creates an tcg_pts_attr_proto_caps_t object + * + * @param flags set of flags + * @param request TRUE for a PTS protocol capabilities request + */ +pa_tnc_attr_t* tcg_pts_attr_proto_caps_create(pts_proto_caps_flag_t flags, + bool request); + +/** + * Creates an tcg_pts_attr_proto_caps_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + * @param request TRUE for a PTS protocol capabilities request + */ +pa_tnc_attr_t* tcg_pts_attr_proto_caps_create_from_data(size_t length, + chunk_t value, + bool request); + +#endif /** TCG_PTS_ATTR_PROTO_CAPS_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meas.c b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meas.c new file mode 100644 index 000000000..a3c3ce56e --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meas.c @@ -0,0 +1,314 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE /* for stdndup() */ +#include <string.h> + +#include "tcg_pts_attr_req_file_meas.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_req_file_meas_t private_tcg_pts_attr_req_file_meas_t; + +/** + * Request File Measurement + * see section 3.19.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Reserved | Request ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Delimiter | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Fully Qualified File Pathname (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define PTS_REQ_FILE_MEAS_SIZE 8 +#define PTS_REQ_FILE_MEAS_RESERVED 0x00 +#define PTS_REQ_FILE_MEAS_NO_FLAGS 0x00 + +#define DIRECTORY_CONTENTS_FLAG (1<<7) + +/** + * Private data of an tcg_pts_attr_req_file_meas_t object. + */ +struct private_tcg_pts_attr_req_file_meas_t { + + /** + * Public members of tcg_pts_attr_req_file_meas_t + */ + tcg_pts_attr_req_file_meas_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Directory Contents flag + */ + bool directory_flag; + + /** + * Request ID + */ + u_int16_t request_id; + + /** + * UTF8 Encoding of Delimiter Character + */ + u_int32_t delimiter; + + /** + * Fully Qualified File Pathname + */ + char *pathname; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_req_file_meas_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_req_file_meas_t *this) +{ + u_int8_t flags = PTS_REQ_FILE_MEAS_NO_FLAGS; + chunk_t pathname; + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + if (this->directory_flag) + { + flags |= DIRECTORY_CONTENTS_FLAG; + } + pathname = chunk_create(this->pathname, strlen(this->pathname)); + + writer = bio_writer_create(PTS_REQ_FILE_MEAS_SIZE); + writer->write_uint8 (writer, flags); + writer->write_uint8 (writer, PTS_REQ_FILE_MEAS_RESERVED); + writer->write_uint16(writer, this->request_id); + writer->write_uint32(writer, this->delimiter); + writer->write_data (writer, pathname); + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_req_file_meas_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int8_t flags; + u_int8_t reserved; + chunk_t pathname; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_REQ_FILE_MEAS_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Request File Measurement"); + return FAILED; + } + + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &flags); + reader->read_uint8 (reader, &reserved); + reader->read_uint16(reader, &this->request_id); + reader->read_uint32(reader, &this->delimiter); + reader->read_data (reader, reader->remaining(reader), &pathname); + + this->directory_flag = (flags & DIRECTORY_CONTENTS_FLAG) != + PTS_REQ_FILE_MEAS_NO_FLAGS; + this->pathname = strndup(pathname.ptr, pathname.len); + + reader->destroy(reader); + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_req_file_meas_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_req_file_meas_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_req_file_meas_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->pathname); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_req_file_meas_t, get_directory_flag, bool, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->directory_flag; +} + +METHOD(tcg_pts_attr_req_file_meas_t, get_request_id, u_int16_t, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->request_id; +} + +METHOD(tcg_pts_attr_req_file_meas_t, get_delimiter, u_int32_t, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->delimiter; +} + +METHOD(tcg_pts_attr_req_file_meas_t, get_pathname, char*, + private_tcg_pts_attr_req_file_meas_t *this) +{ + return this->pathname; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_req_file_meas_create(bool directory_flag, + u_int16_t request_id, + u_int32_t delimiter, + char *pathname) +{ + private_tcg_pts_attr_req_file_meas_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_directory_flag = _get_directory_flag, + .get_request_id = _get_request_id, + .get_delimiter = _get_delimiter, + .get_pathname = _get_pathname, + }, + .type = { PEN_TCG, TCG_PTS_REQ_FILE_MEAS }, + .directory_flag = directory_flag, + .request_id = request_id, + .delimiter = delimiter, + .pathname = strdup(pathname), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_req_file_meas_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_req_file_meas_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_directory_flag = _get_directory_flag, + .get_request_id = _get_request_id, + .get_delimiter = _get_delimiter, + .get_pathname = _get_pathname, + }, + .type = { PEN_TCG, TCG_PTS_REQ_FILE_MEAS }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meas.h b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meas.h new file mode 100644 index 000000000..20a54dfaf --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meas.h @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_req_file_meas tcg_pts_attr_req_file_meas + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_REQ_FILE_MEAS_H_ +#define TCG_PTS_ATTR_REQ_FILE_MEAS_H_ + +typedef struct tcg_pts_attr_req_file_meas_t tcg_pts_attr_req_file_meas_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Request File Measurement attribute + * + */ +struct tcg_pts_attr_req_file_meas_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get flag for PTS Request File Measurement + * + * @return Directory Contents flag + */ + bool (*get_directory_flag)(tcg_pts_attr_req_file_meas_t *this); + + /** + * Get Request ID + * + * @return Request ID + */ + u_int16_t (*get_request_id)(tcg_pts_attr_req_file_meas_t *this); + + /** + * Get Delimiter + * + * @return UTF-8 encoding of a Delimiter Character + */ + u_int32_t (*get_delimiter)(tcg_pts_attr_req_file_meas_t *this); + + /** + * Get Fully Qualified File Pathname + * + * @return Pathname + */ + char* (*get_pathname)(tcg_pts_attr_req_file_meas_t *this); + +}; + +/** + * Creates an tcg_pts_attr_req_file_meas_t object + * + * @param directory_flag Directory Contents Flag + * @param request_id Request ID + * @param delimiter Delimiter Character + * @param pathname File Pathname + */ +pa_tnc_attr_t* tcg_pts_attr_req_file_meas_create(bool directory_flag, + u_int16_t request_id, + u_int32_t delimiter, + char *pathname); + +/** + * Creates an tcg_pts_attr_req_file_meas_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_req_file_meas_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_REQ_FILE_MEAS_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meta.c b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meta.c new file mode 100644 index 000000000..f6befa8b9 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meta.c @@ -0,0 +1,296 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE /* for stdndup() */ +#include <string.h> + +#include "tcg_pts_attr_req_file_meta.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_req_file_meta_t private_tcg_pts_attr_req_file_meta_t; + +/** + * Request File Metadata + * see section 3.17.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Delimiter | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Fully Qualified File Pathname (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define PTS_REQ_FILE_META_SIZE 4 +#define PTS_REQ_FILE_META_RESERVED 0x00 +#define PTS_REQ_FILE_META_NO_FLAGS 0x00 + +#define DIRECTORY_CONTENTS_FLAG (1<<7) + +/** + * Private data of an tcg_pts_attr_req_file_meta_t object. + */ +struct private_tcg_pts_attr_req_file_meta_t { + + /** + * Public members of tcg_pts_attr_req_file_meta_t + */ + tcg_pts_attr_req_file_meta_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Directory Contents flag + */ + bool directory_flag; + + /** + * UTF8 Encoding of Delimiter Character + */ + u_int8_t delimiter; + + /** + * Fully Qualified File Pathname + */ + char *pathname; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_req_file_meta_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_req_file_meta_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_req_file_meta_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_req_file_meta_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_req_file_meta_t *this) +{ + u_int8_t flags = PTS_REQ_FILE_META_NO_FLAGS; + chunk_t pathname; + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + if (this->directory_flag) + { + flags |= DIRECTORY_CONTENTS_FLAG; + } + pathname = chunk_create(this->pathname, strlen(this->pathname)); + + writer = bio_writer_create(PTS_REQ_FILE_META_SIZE); + writer->write_uint8 (writer, flags); + writer->write_uint8 (writer, this->delimiter); + writer->write_uint16(writer, PTS_REQ_FILE_META_RESERVED); + + writer->write_data (writer, pathname); + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_req_file_meta_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int8_t flags; + u_int16_t reserved; + chunk_t pathname; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_REQ_FILE_META_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Request File Metadata"); + } + + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &flags); + reader->read_uint8 (reader, &this->delimiter); + reader->read_uint16(reader, &reserved); + + reader->read_data (reader, reader->remaining(reader), &pathname); + + this->directory_flag = (flags & DIRECTORY_CONTENTS_FLAG) != + PTS_REQ_FILE_META_NO_FLAGS; + this->pathname = strndup(pathname.ptr, pathname.len); + + reader->destroy(reader); + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_req_file_meta_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_req_file_meta_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_req_file_meta_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->pathname); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_req_file_meta_t, get_directory_flag, bool, + private_tcg_pts_attr_req_file_meta_t *this) +{ + return this->directory_flag; +} + +METHOD(tcg_pts_attr_req_file_meta_t, get_delimiter, u_int8_t, + private_tcg_pts_attr_req_file_meta_t *this) +{ + return this->delimiter; +} + +METHOD(tcg_pts_attr_req_file_meta_t, get_pathname, char*, + private_tcg_pts_attr_req_file_meta_t *this) +{ + return this->pathname; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_req_file_meta_create(bool directory_flag, + u_int8_t delimiter, + char *pathname) +{ + private_tcg_pts_attr_req_file_meta_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_directory_flag = _get_directory_flag, + .get_delimiter = _get_delimiter, + .get_pathname = _get_pathname, + }, + .type = { PEN_TCG, TCG_PTS_REQ_FILE_META }, + .directory_flag = directory_flag, + .delimiter = delimiter, + .pathname = strdup(pathname), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_req_file_meta_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_req_file_meta_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_directory_flag = _get_directory_flag, + .get_delimiter = _get_delimiter, + .get_pathname = _get_pathname, + }, + .type = { PEN_TCG, TCG_PTS_REQ_FILE_META }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meta.h b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meta.h new file mode 100644 index 000000000..c2f1cca74 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_req_file_meta.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_req_file_meta tcg_pts_attr_req_file_meta + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_REQ_FILE_META_H_ +#define TCG_PTS_ATTR_REQ_FILE_META_H_ + +typedef struct tcg_pts_attr_req_file_meta_t tcg_pts_attr_req_file_meta_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Request File Metadata attribute + * + */ +struct tcg_pts_attr_req_file_meta_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get directory flag for PTS Request File Metadata + * + * @return Directory Contents flag + */ + bool (*get_directory_flag)(tcg_pts_attr_req_file_meta_t *this); + + /** + * Get Delimiter + * + * @return UTF-8 encoding of a Delimiter Character + */ + u_int8_t (*get_delimiter)(tcg_pts_attr_req_file_meta_t *this); + + /** + * Get Fully Qualified File Pathname + * + * @return Pathname + */ + char* (*get_pathname)(tcg_pts_attr_req_file_meta_t *this); + +}; + +/** + * Creates an tcg_pts_attr_req_file_meta_t object + * + * @param directory_flag Directory Contents Flag + * @param delimiter Delimiter Character + * @param pathname File Pathname + */ +pa_tnc_attr_t* tcg_pts_attr_req_file_meta_create(bool directory_flag, + u_int8_t delimiter, + char *pathname); + +/** + * Creates an tcg_pts_attr_req_file_meta_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_req_file_meta_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_REQ_FILE_META_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_req_func_comp_evid.c b/src/libimcv/tcg/pts/tcg_pts_attr_req_func_comp_evid.c new file mode 100644 index 000000000..03891104c --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_req_func_comp_evid.c @@ -0,0 +1,389 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_req_func_comp_evid.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_req_func_comp_evid_t private_tcg_pts_attr_req_func_comp_evid_t; + +/** + * Request Functional Component Evidence + * see section 3.14.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Sub-component Depth (for Component #1) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name #1 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name #1 | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | ........ | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Sub-component Depth (for Component #N) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name #N | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name #N | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +/** + * Component Functional Name Structure + * (see section 5.1 of PTS Protocol: Binding to TNC IF-M Specification) + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name Vendor ID |Fam| Qualifier | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define PTS_REQ_FUNC_COMP_EVID_SIZE 12 +#define PTS_REQ_FUNC_COMP_FAMILY_MASK 0xC0 + +/** + * Private data of an tcg_pts_attr_req_func_comp_evid_t object. + */ +struct private_tcg_pts_attr_req_func_comp_evid_t { + + /** + * Public members of tcg_pts_attr_req_func_comp_evid_t + */ + tcg_pts_attr_req_func_comp_evid_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * List of Functional Components + */ + linked_list_t *list; + + /** + * Reference count + */ + refcount_t ref; +}; + +typedef struct entry_t entry_t; + +/** + * Functional component entry + */ +struct entry_t { + u_int8_t flags; + u_int32_t depth; + pts_comp_func_name_t *name; +}; + +/** + * Enumerate functional component entries + */ +static bool entry_filter(void *null, entry_t **entry, u_int8_t *flags, + void *i2, u_int32_t *depth, void *i3, + pts_comp_func_name_t **name) +{ + *flags = (*entry)->flags; + *depth = (*entry)->depth; + *name = (*entry)->name; + + return TRUE; +} + +/** + * Free an entry_t object + */ +static void free_entry(entry_t *this) +{ + if (this) + { + this->name->destroy(this->name); + free(this); + } +} + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_req_func_comp_evid_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + bio_writer_t *writer; + enumerator_t *enumerator; + entry_t *entry; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_REQ_FUNC_COMP_EVID_SIZE); + + enumerator = this->list->create_enumerator(this->list); + while (enumerator->enumerate(enumerator, &entry)) + { + writer->write_uint8 (writer, entry->flags); + writer->write_uint24(writer, entry->depth); + writer->write_uint24(writer, entry->name->get_vendor_id(entry->name)); + writer->write_uint8 (writer, entry->name->get_qualifier(entry->name)); + writer->write_uint32(writer, entry->name->get_name(entry->name)); + } + enumerator->destroy(enumerator); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_req_func_comp_evid_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t depth, vendor_id, name; + u_int8_t flags, fam_and_qualifier, qualifier; + status_t status = FAILED; + entry_t *entry = NULL; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_REQ_FUNC_COMP_EVID_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Request Functional " + "Component Evidence"); + return FAILED; + } + reader = bio_reader_create(this->value); + + while (reader->remaining(reader)) + { + if (!reader->read_uint8(reader, &flags)) + { + DBG1(DBG_TNC, "insufficient data for PTS Request Functional " + "Component Evidence Flags"); + goto end; + } + if (!reader->read_uint24(reader, &depth)) + { + DBG1(DBG_TNC, "insufficient data for PTS Request Functional " + "Component Evidence Sub Component Depth"); + goto end; + } + if (!reader->read_uint24(reader, &vendor_id)) + { + DBG1(DBG_TNC, "insufficient data for PTS Request Functional " + "Component Evidence Component Name Vendor ID"); + goto end; + } + if (!reader->read_uint8(reader, &fam_and_qualifier)) + { + DBG1(DBG_TNC, "insufficient data for PTS Request Functional " + "Component Evidence Family and Qualifier"); + goto end; + } + if (fam_and_qualifier & PTS_REQ_FUNC_COMP_FAMILY_MASK) + { + DBG1(DBG_TNC, "the Functional Name Encoding Family " + "is not Binary Enumeration"); + goto end; + } + if (!reader->read_uint32(reader, &name)) + { + DBG1(DBG_TNC, "insufficient data for PTS Request Functional " + "Component Evidence Component Functional Name"); + goto end; + } + qualifier = fam_and_qualifier & ~PTS_REQ_FUNC_COMP_FAMILY_MASK; + + entry = malloc_thing(entry_t); + entry->flags = flags; + entry->depth = depth; + entry->name = pts_comp_func_name_create(vendor_id, name, qualifier); + + this->list->insert_last(this->list, entry); + } + status = SUCCESS; + +end: + reader->destroy(reader); + return status; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_req_func_comp_evid_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + if (ref_put(&this->ref)) + { + this->list->destroy_function(this->list, (void *)free_entry); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_req_func_comp_evid_t, add_component, void, + private_tcg_pts_attr_req_func_comp_evid_t *this, u_int8_t flags, + u_int32_t depth, pts_comp_func_name_t *name) +{ + entry_t *entry; + + entry = malloc_thing(entry_t); + entry->flags = flags; + entry->depth = depth; + entry->name = name->clone(name); + this->list->insert_last(this->list, entry); +} + +METHOD(tcg_pts_attr_req_func_comp_evid_t, get_count, int, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + return this->list->get_count(this->list); +} + +METHOD(tcg_pts_attr_req_func_comp_evid_t, create_enumerator, enumerator_t*, + private_tcg_pts_attr_req_func_comp_evid_t *this) +{ + return enumerator_create_filter(this->list->create_enumerator(this->list), + (void*)entry_filter, NULL, NULL); +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_req_func_comp_evid_create(void) +{ + private_tcg_pts_attr_req_func_comp_evid_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .add_component = _add_component, + .get_count = _get_count, + .create_enumerator = _create_enumerator, + }, + .type = { PEN_TCG, TCG_PTS_REQ_FUNC_COMP_EVID }, + .list = linked_list_create(), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_req_func_comp_evid_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_req_func_comp_evid_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .add_component = _add_component, + .get_count = _get_count, + .create_enumerator = _create_enumerator, + }, + .type = { PEN_TCG, TCG_PTS_REQ_FUNC_COMP_EVID }, + .length = length, + .list = linked_list_create(), + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_req_func_comp_evid.h b/src/libimcv/tcg/pts/tcg_pts_attr_req_func_comp_evid.h new file mode 100644 index 000000000..2f8657ed2 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_req_func_comp_evid.h @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_req_func_comp_evid tcg_pts_attr_req_func_comp_evid + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_REQ_FUNC_COMP_EVID_H_ +#define TCG_PTS_ATTR_REQ_FUNC_COMP_EVID_H_ + +typedef struct tcg_pts_attr_req_func_comp_evid_t tcg_pts_attr_req_func_comp_evid_t; + +#include "tcg/tcg_attr.h" +#include "pts/components/pts_comp_func_name.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Request Functional Component Evidence attribute + * + */ +struct tcg_pts_attr_req_func_comp_evid_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Add a component to the Functional Component Evidence Request + * + * @param flags Component Evidence Request Flags + * @param depth Sub-component Depth + * @param name Functional Component Name + */ + void (*add_component)(tcg_pts_attr_req_func_comp_evid_t *this, + u_int8_t flags, u_int32_t depth, + pts_comp_func_name_t *name); + + /** + * Returns the number of Functional Component entries + * + * @return Number of entries + */ + int (*get_count)(tcg_pts_attr_req_func_comp_evid_t *this); + + /** + * Enumerator over Functional Component entries + * + * @return Entry enumerator + */ + enumerator_t* (*create_enumerator)(tcg_pts_attr_req_func_comp_evid_t *this); + +}; + +/** + * Creates a tcg_pts_attr_req_func_comp_evid_t object + */ +pa_tnc_attr_t* tcg_pts_attr_req_func_comp_evid_create(void); + +/** + * Creates a tcg_pts_attr_req_func_comp_evid_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_req_func_comp_evid_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_REQ_FUNC_COMP_EVID_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_simple_comp_evid.c b/src/libimcv/tcg/pts/tcg_pts_attr_simple_comp_evid.c new file mode 100644 index 000000000..d94ee89a5 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_simple_comp_evid.c @@ -0,0 +1,532 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_simple_comp_evid.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +#include <time.h> + +typedef struct private_tcg_pts_attr_simple_comp_evid_t private_tcg_pts_attr_simple_comp_evid_t; + +/** + * Simple Component Evidence + * see section 3.15.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Sub-Component Depth | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Specific Functional Component | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Specific Functional Component | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measure. Type | Extended into PCR | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Hash Algorithm | PCR Transform | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement Date/Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement Date/Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement Date/Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement Date/Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Measurement Date/Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Optional Policy URI Length | Opt. Verification Policy URI ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Optional Verification Policy URI ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Optional PCR Length | Optional PCR Before Value ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Optional PCR Before Value (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Optional PCR After Value (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Component Measurement (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +/** + * Specific Functional Component -> Component Functional Name Structure + * see section 5.1 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name Vendor ID |Fam| Qualifier | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Component Functional Name | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + */ + +#define PTS_SIMPLE_COMP_EVID_SIZE 40 +#define PTS_SIMPLE_COMP_EVID_MEAS_TIME_SIZE 20 +#define PTS_SIMPLE_COMP_EVID_RESERVED 0x00 +#define PTS_SIMPLE_COMP_EVID_FAMILY_MASK 0xC0 +#define PTS_SIMPLE_COMP_EVID_VALIDATION_MASK 0x60 +#define PTS_SIMPLE_COMP_EVID_MEAS_TYPE (1<<7) +#define PTS_SIMPLE_COMP_EVID_FLAG_PCR (1<<7) + +static char *utc_undefined_time_str = "0000-00-00T00:00:00Z"; + +/** + * Private data of an tcg_pts_attr_simple_comp_evid_t object. + */ +struct private_tcg_pts_attr_simple_comp_evid_t { + + /** + * Public members of tcg_pts_attr_simple_comp_evid_t + */ + tcg_pts_attr_simple_comp_evid_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * PTS Component Evidence + */ + pts_comp_evidence_t *evidence; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_simple_comp_evid_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +/** + * Convert time_t to Simple Component Evidence UTS string format + */ +void measurement_time_to_utc(time_t measurement_time, chunk_t *utc_time) +{ + struct tm t; + + if (measurement_time == UNDEFINED_TIME) + { + utc_time->ptr = utc_undefined_time_str; + } + else + { + gmtime_r(&measurement_time, &t); + sprintf(utc_time->ptr, "%04d-%02d-%02dT%02d:%02d:%02dZ", + t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, + t.tm_hour, t.tm_min, t.tm_sec); + } +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + bio_writer_t *writer; + bool has_pcr_info; + char utc_time_buf[25], *policy_uri; + u_int8_t flags; + u_int16_t len; + u_int32_t depth, extended_pcr; + pts_comp_func_name_t *name; + pts_meas_algorithms_t hash_algorithm; + pts_pcr_transform_t transform; + pts_comp_evid_validation_t validation; + time_t measurement_time; + chunk_t measurement, utc_time, pcr_before, pcr_after; + + if (this->value.ptr) + { + return; + } + + /* Extract parameters from comp_evidence_t object */ + name = this->evidence->get_comp_func_name(this->evidence, + &depth); + measurement = this->evidence->get_measurement(this->evidence, + &extended_pcr, &hash_algorithm, &transform, + &measurement_time); + has_pcr_info = this->evidence->get_pcr_info(this->evidence, + &pcr_before, &pcr_after); + validation = this->evidence->get_validation(this->evidence, + &policy_uri); + + /* Determine the flags to set*/ + flags = validation; + if (has_pcr_info) + { + flags |= PTS_SIMPLE_COMP_EVID_FLAG_PCR; + } + + utc_time = chunk_create(utc_time_buf, PTS_SIMPLE_COMP_EVID_MEAS_TIME_SIZE); + measurement_time_to_utc(measurement_time, &utc_time); + + writer = bio_writer_create(PTS_SIMPLE_COMP_EVID_SIZE); + + writer->write_uint8 (writer, flags); + writer->write_uint24(writer, depth); + writer->write_uint24(writer, name->get_vendor_id(name)); + writer->write_uint8 (writer, name->get_qualifier(name)); + writer->write_uint32(writer, name->get_name(name)); + writer->write_uint8 (writer, PTS_SIMPLE_COMP_EVID_MEAS_TYPE); + writer->write_uint24(writer, extended_pcr); + writer->write_uint16(writer, hash_algorithm); + writer->write_uint8 (writer, transform); + writer->write_uint8 (writer, PTS_SIMPLE_COMP_EVID_RESERVED); + writer->write_data (writer, utc_time); + + /* Optional fields */ + if (validation == PTS_COMP_EVID_VALIDATION_FAILED || + validation == PTS_COMP_EVID_VALIDATION_PASSED) + { + len = strlen(policy_uri); + writer->write_uint16(writer, len); + writer->write_data (writer, chunk_create(policy_uri, len)); + } + if (has_pcr_info) + { + writer->write_uint16(writer, pcr_before.len); + writer->write_data (writer, pcr_before); + writer->write_data (writer, pcr_after); + } + + writer->write_data(writer, measurement); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +static const int days[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; +static const int tm_leap_1970 = 477; + +/** + * Convert Simple Component Evidence UTS string format to time_t + */ +bool measurement_time_from_utc(time_t *measurement_time, chunk_t utc_time) +{ + int tm_year, tm_mon, tm_day, tm_days, tm_hour, tm_min, tm_sec, tm_secs; + int tm_leap_4, tm_leap_100, tm_leap_400, tm_leap; + + if (memeq(utc_undefined_time_str, utc_time.ptr, utc_time.len)) + { + *measurement_time = 0; + return TRUE; + } + if (sscanf(utc_time.ptr, "%4d-%2d-%2dT%2d:%2d:%2dZ", + &tm_year, &tm_mon, &tm_day, &tm_hour, &tm_min, &tm_sec) != 6) + { + return FALSE; + } + + /* representation of months as 0..11 */ + tm_mon--; + + /* representation of days as 0..30 */ + tm_day--; + + /* number of leap years between last year and 1970? */ + tm_leap_4 = (tm_year - 1) / 4; + tm_leap_100 = tm_leap_4 / 25; + tm_leap_400 = tm_leap_100 / 4; + tm_leap = tm_leap_4 - tm_leap_100 + tm_leap_400 - tm_leap_1970; + + /* if date later then February, is the current year a leap year? */ + if (tm_mon > 1 && (tm_year % 4 == 0) && + (tm_year % 100 != 0 || tm_year % 400 == 0)) + { + tm_leap++; + } + tm_days = 365 * (tm_year - 1970) + days[tm_mon] + tm_day + tm_leap; + tm_secs = 60 * (60 * (24 * tm_days + tm_hour) + tm_min) + tm_sec; + + *measurement_time = tm_secs; + return TRUE; +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_simple_comp_evid_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + pts_comp_func_name_t *name; + u_int8_t flags, fam_and_qualifier, qualifier, reserved; + u_int8_t measurement_type, transform, validation; + u_int16_t hash_algorithm, len; + u_int32_t depth, vendor_id, comp_name, extended_pcr; + chunk_t measurement, utc_time, policy_uri, pcr_before, pcr_after; + time_t measurement_time; + bool has_pcr_info = FALSE, has_validation = FALSE; + status_t status = FAILED; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_SIMPLE_COMP_EVID_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Simple Component Evidence"); + } + reader = bio_reader_create(this->value); + + reader->read_uint8 (reader, &flags); + reader->read_uint24(reader, &depth); + reader->read_uint24(reader, &vendor_id); + reader->read_uint8 (reader, &fam_and_qualifier); + reader->read_uint32(reader, &comp_name); + reader->read_uint8 (reader, &measurement_type); + reader->read_uint24(reader, &extended_pcr); + reader->read_uint16(reader, &hash_algorithm); + reader->read_uint8 (reader, &transform); + reader->read_uint8 (reader, &reserved); + reader->read_data (reader, PTS_SIMPLE_COMP_EVID_MEAS_TIME_SIZE, &utc_time); + + if (measurement_type != PTS_SIMPLE_COMP_EVID_MEAS_TYPE) + { + DBG1(DBG_TNC, "unsupported Measurement Type in " + "Simple Component Evidence"); + *offset = 12; + reader->destroy(reader); + return FAILED; + } + if (!measurement_time_from_utc(&measurement_time, utc_time)) + { + DBG1(DBG_TNC, "invalid Measurement Time field in " + "Simple Component Evidence"); + *offset = 20; + reader->destroy(reader); + return FAILED; + } + validation = flags & PTS_SIMPLE_COMP_EVID_VALIDATION_MASK; + qualifier = fam_and_qualifier & ~PTS_SIMPLE_COMP_EVID_FAMILY_MASK; + + /* Is optional Policy URI field included? */ + if (validation == PTS_COMP_EVID_VALIDATION_FAILED || + validation == PTS_COMP_EVID_VALIDATION_PASSED) + { + if (!reader->read_uint16(reader, &len)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Component Evidence " + "Verification Policy URI Length"); + goto end; + } + if (!reader->read_data(reader, len, &policy_uri)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Component Evidence " + "Verification Policy URI"); + goto end; + } + has_validation = TRUE; + } + + /* Are optional PCR value fields included? */ + if (flags & PTS_SIMPLE_COMP_EVID_FLAG_PCR) + { + if (!reader->read_uint16(reader, &len)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Component Evidence " + "PCR Value length"); + goto end; + } + if (!reader->read_data(reader, len, &pcr_before)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Component Evidence " + "PCR Before Value"); + goto end; + } + if (!reader->read_data(reader, len, &pcr_after)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Component Evidence " + "PCR After Value"); + goto end; + } + has_pcr_info = TRUE; + } + + /* Measurement field comes at the very end */ + reader->read_data(reader,reader->remaining(reader), &measurement); + reader->destroy(reader); + + /* Create Component Functional Name object */ + name = pts_comp_func_name_create(vendor_id, comp_name, qualifier); + + /* Create Component Evidence object */ + measurement = chunk_clone(measurement); + this->evidence = pts_comp_evidence_create(name, depth, extended_pcr, + hash_algorithm, transform, + measurement_time, measurement); + + /* Add options */ + if (has_validation) + { + char buf[BUF_LEN]; + size_t len; + + len = min(policy_uri.len, BUF_LEN-1); + memcpy(buf, policy_uri.ptr, len); + buf[len] = '\0'; + this->evidence->set_validation(this->evidence, validation, buf); + } + if (has_pcr_info) + { + pcr_before = chunk_clone(pcr_before); + pcr_after = chunk_clone(pcr_after); + this->evidence->set_pcr_info(this->evidence, pcr_before, pcr_after); + } + + return SUCCESS; + +end: + reader->destroy(reader); + return status; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_simple_comp_evid_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + if (ref_put(&this->ref)) + { + DESTROY_IF(this->evidence); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_simple_comp_evid_t, get_comp_evidence, pts_comp_evidence_t*, + private_tcg_pts_attr_simple_comp_evid_t *this) +{ + return this->evidence; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_simple_comp_evid_create(pts_comp_evidence_t *evid) +{ + private_tcg_pts_attr_simple_comp_evid_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_comp_evidence = _get_comp_evidence, + }, + .type = { PEN_TCG, TCG_PTS_SIMPLE_COMP_EVID }, + .evidence = evid, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_simple_comp_evid_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_simple_comp_evid_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_comp_evidence = _get_comp_evidence, + }, + .type = { PEN_TCG, TCG_PTS_SIMPLE_COMP_EVID }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_simple_comp_evid.h b/src/libimcv/tcg/pts/tcg_pts_attr_simple_comp_evid.h new file mode 100644 index 000000000..c08adb8c9 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_simple_comp_evid.h @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_simple_comp_evid tcg_pts_attr_simple_comp_evid + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_SIMPLE_COMP_EVID_H_ +#define TCG_PTS_ATTR_SIMPLE_COMP_EVID_H_ + +typedef struct tcg_pts_attr_simple_comp_evid_t tcg_pts_attr_simple_comp_evid_t; + +#include "tcg/tcg_attr.h" +#include "pts/components/pts_comp_evidence.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Simple Component Evidence attribute + * + */ +struct tcg_pts_attr_simple_comp_evid_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get Component Evidence + * + * @return Component Evidence + */ + pts_comp_evidence_t* (*get_comp_evidence)(tcg_pts_attr_simple_comp_evid_t *this); + +}; + +/** + * Creates an tcg_pts_attr_simple_comp_evid_t object + * + * @param evid Component Evidence + */ +pa_tnc_attr_t* tcg_pts_attr_simple_comp_evid_create(pts_comp_evidence_t *evid); + +/** + * Creates an tcg_pts_attr_simple_comp_evid_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_simple_comp_evid_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_SIMPLE_COMP_EVID_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_simple_evid_final.c b/src/libimcv/tcg/pts/tcg_pts_attr_simple_evid_final.c new file mode 100644 index 000000000..cfeaec6e9 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_simple_evid_final.c @@ -0,0 +1,405 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_simple_evid_final.h" +#include "pts/pts_simple_evid_final.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_simple_evid_final_t private_tcg_pts_attr_simple_evid_final_t; + +/** + * Simple Evidence Final + * see section 3.15.2 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Flags | Reserved | Optional Composite Hash Alg | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Optional TPM PCR Composite Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Optional TPM PCR Composite (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Optional TPM Quote Signature Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Optional TPM Quote Signature (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Optional Evidence Signature (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define PTS_SIMPLE_EVID_FINAL_SIZE 2 +#define PTS_SIMPLE_EVID_FINAL_RESERVED 0x00 +#define PTS_SIMPLE_EVID_FINAL_FLAG_MASK 0xC0 +/** + * Private data of an tcg_pts_attr_simple_evid_final_t object. + */ +struct private_tcg_pts_attr_simple_evid_final_t { + + /** + * Public members of tcg_pts_attr_simple_evid_final_t + */ + tcg_pts_attr_simple_evid_final_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Set of flags for Simple Evidence Final + */ + u_int8_t flags; + + /** + * Optional Composite Hash Algorithm + */ + pts_meas_algorithms_t comp_hash_algorithm; + + /** + * Optional TPM PCR Composite + */ + chunk_t pcr_comp; + + /** + * Optional TPM Quote Signature + */ + chunk_t tpm_quote_sig; + + /** + * Is Evidence Signature included? + */ + bool has_evid_sig; + + /** + * Optional Evidence Signature + */ + chunk_t evid_sig; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_simple_evid_final_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_simple_evid_final_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_simple_evid_final_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_simple_evid_final_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_simple_evid_final_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_simple_evid_final_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_simple_evid_final_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this->pcr_comp.ptr); + free(this->tpm_quote_sig.ptr); + free(this->evid_sig.ptr); + free(this); + } +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_simple_evid_final_t *this) +{ + bio_writer_t *writer; + u_int8_t flags; + + if (this->value.ptr) + { + return; + } + flags = this->flags & PTS_SIMPLE_EVID_FINAL_FLAG_MASK; + + if (this->has_evid_sig) + { + flags |= PTS_SIMPLE_EVID_FINAL_EVID_SIG; + } + + writer = bio_writer_create(PTS_SIMPLE_EVID_FINAL_SIZE); + writer->write_uint8 (writer, flags); + writer->write_uint8 (writer, PTS_SIMPLE_EVID_FINAL_RESERVED); + + /** Optional Composite Hash Algorithm field is always present + * Field has value of all zeroes if not used. + * Implemented adhering the suggestion of Paul Sangster 28.Oct.2011 + */ + writer->write_uint16(writer, this->comp_hash_algorithm); + + /* Optional fields */ + if (this->flags != PTS_SIMPLE_EVID_FINAL_NO) + { + writer->write_uint32 (writer, this->pcr_comp.len); + writer->write_data (writer, this->pcr_comp); + + writer->write_uint32 (writer, this->tpm_quote_sig.len); + writer->write_data (writer, this->tpm_quote_sig); + } + + if (this->has_evid_sig) + { + writer->write_data (writer, this->evid_sig); + } + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_simple_evid_final_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int8_t flags, reserved; + u_int16_t algorithm; + u_int32_t pcr_comp_len, tpm_quote_sig_len, evid_sig_len; + status_t status = FAILED; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_SIMPLE_EVID_FINAL_SIZE) + { + DBG1(DBG_TNC, "insufficient data for Simple Evidence Final"); + return FAILED; + } + reader = bio_reader_create(this->value); + + reader->read_uint8(reader, &flags); + reader->read_uint8(reader, &reserved); + + this->flags = flags & PTS_SIMPLE_EVID_FINAL_FLAG_MASK; + + this->has_evid_sig = (flags & PTS_SIMPLE_EVID_FINAL_EVID_SIG) != 0; + + /** Optional Composite Hash Algorithm field is always present + * Field has value of all zeroes if not used. + * Implemented adhering the suggestion of Paul Sangster 28.Oct.2011 + */ + + reader->read_uint16(reader, &algorithm); + this->comp_hash_algorithm = algorithm; + + /* Optional Composite Hash Algorithm and TPM PCR Composite fields */ + if (this->flags != PTS_SIMPLE_EVID_FINAL_NO) + { + if (!reader->read_uint32(reader, &pcr_comp_len)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Evidence Final " + "PCR Composite Length"); + goto end; + } + if (!reader->read_data(reader, pcr_comp_len, &this->pcr_comp)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Evidence Final " + "PCR Composite"); + goto end; + } + this->pcr_comp = chunk_clone(this->pcr_comp); + + if (!reader->read_uint32(reader, &tpm_quote_sig_len)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Evidence Final " + "TPM Quote Singature Length"); + goto end; + } + if (!reader->read_data(reader, tpm_quote_sig_len, &this->tpm_quote_sig)) + { + DBG1(DBG_TNC, "insufficient data for PTS Simple Evidence Final " + "TPM Quote Singature"); + goto end; + } + this->tpm_quote_sig = chunk_clone(this->tpm_quote_sig); + } + + /* Optional Evidence Signature field */ + if (this->has_evid_sig) + { + evid_sig_len = reader->remaining(reader); + reader->read_data(reader, evid_sig_len, &this->evid_sig); + this->evid_sig = chunk_clone(this->evid_sig); + } + + reader->destroy(reader); + return SUCCESS; + +end: + reader->destroy(reader); + return status; +} + +METHOD(tcg_pts_attr_simple_evid_final_t, get_quote_info, u_int8_t, + private_tcg_pts_attr_simple_evid_final_t *this, + pts_meas_algorithms_t *comp_hash_algo, chunk_t *pcr_comp, chunk_t *tpm_quote_sig) +{ + if (comp_hash_algo) + { + *comp_hash_algo = this->comp_hash_algorithm; + } + if (pcr_comp) + { + *pcr_comp = this->pcr_comp; + } + if (tpm_quote_sig) + { + *tpm_quote_sig = this->tpm_quote_sig; + } + return this->flags; +} + +METHOD(tcg_pts_attr_simple_evid_final_t, get_evid_sig, bool, + private_tcg_pts_attr_simple_evid_final_t *this, chunk_t *evid_sig) +{ + if (evid_sig) + { + *evid_sig = this->evid_sig; + } + return this->has_evid_sig; +} + +METHOD(tcg_pts_attr_simple_evid_final_t, set_evid_sig, void, + private_tcg_pts_attr_simple_evid_final_t *this, chunk_t evid_sig) +{ + this->evid_sig = evid_sig; + this->has_evid_sig = TRUE; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_simple_evid_final_create(u_int8_t flags, + pts_meas_algorithms_t comp_hash_algorithm, + chunk_t pcr_comp, chunk_t tpm_quote_sig) +{ + private_tcg_pts_attr_simple_evid_final_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_quote_info = _get_quote_info, + .get_evid_sig = _get_evid_sig, + .set_evid_sig = _set_evid_sig, + }, + .type = { PEN_TCG, TCG_PTS_SIMPLE_EVID_FINAL }, + .flags = flags, + .comp_hash_algorithm = comp_hash_algorithm, + .pcr_comp = pcr_comp, + .tpm_quote_sig = tpm_quote_sig, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_simple_evid_final_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_simple_evid_final_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_quote_info = _get_quote_info, + .get_evid_sig = _get_evid_sig, + .set_evid_sig = _set_evid_sig, + }, + .type = { PEN_TCG, TCG_PTS_SIMPLE_EVID_FINAL }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_simple_evid_final.h b/src/libimcv/tcg/pts/tcg_pts_attr_simple_evid_final.h new file mode 100644 index 000000000..8343b5b30 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_simple_evid_final.h @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_simple_evid_final tcg_pts_attr_simple_evid_final + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_SIMPLE_EVID_FINAL_H_ +#define TCG_PTS_ATTR_SIMPLE_EVID_FINAL_H_ + +typedef struct tcg_pts_attr_simple_evid_final_t tcg_pts_attr_simple_evid_final_t; + +#include "tcg/tcg_attr.h" +#include "tcg_pts_attr_meas_algo.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS Simple Evidence Final attribute + * + */ +struct tcg_pts_attr_simple_evid_final_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get Optional PCR Composite and TPM Quote Signature + * + * @param comp_hash_algo Optional Composite Hash Algorithm + * @param pcr_comp Optional PCR Composite + * @param tpm_quote sig Optional TPM Quote Signature + * @return PTS_SIMPLE_EVID_FINAL flags + */ + u_int8_t (*get_quote_info)(tcg_pts_attr_simple_evid_final_t *this, + pts_meas_algorithms_t *comp_hash_algo, + chunk_t *pcr_comp, chunk_t *tpm_quote_sig); + + /** + * Get Optional Evidence Signature + * + * @param evid_sig Optional Evidence Signature + * @return TRUE if Evidence Signature is available + */ + bool (*get_evid_sig)(tcg_pts_attr_simple_evid_final_t *this, + chunk_t *evid_sig); + + /** + * Set Optional Evidence Signature + * + * @param vid_sig Optional Evidence Signature + */ + void (*set_evid_sig)(tcg_pts_attr_simple_evid_final_t *this, + chunk_t evid_sig); + +}; + +/** + * Creates an tcg_pts_attr_simple_evid_final_t object + * + * @param flags Set of flags + * @param comp_hash_algorithm Composite Hash Algorithm + * @param pcr_comp Optional TPM PCR Composite + * @param tpm_quote_sign Optional TPM Quote Signature + */ +pa_tnc_attr_t* tcg_pts_attr_simple_evid_final_create( + u_int8_t flags, + pts_meas_algorithms_t comp_hash_algorithm, + chunk_t pcr_comp, + chunk_t tpm_quote_sign); + +/** + * Creates an tcg_pts_attr_simple_evid_final_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_simple_evid_final_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_SIMPLE_EVID_FINAL_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_tpm_version_info.c b/src/libimcv/tcg/pts/tcg_pts_attr_tpm_version_info.c new file mode 100644 index 000000000..db877e9c5 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_tpm_version_info.c @@ -0,0 +1,248 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_pts_attr_tpm_version_info.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_tpm_version_info_t private_tcg_pts_attr_tpm_version_info_t; + +/** + * TPM Version Information + * see section 3.11 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | TPM Version Information (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * see TPM Structure Specification Part 2, section 21.6: TPM_CAP_VERSION_INFO + */ + +#define PTS_TPM_VER_INFO_SIZE 4 + +/** + * Private data of an tcg_pts_attr_tpm_version_info_t object. + */ +struct private_tcg_pts_attr_tpm_version_info_t { + + /** + * Public members of tcg_pts_attr_tpm_version_info_t + */ + tcg_pts_attr_tpm_version_info_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * TPM Version Information + */ + chunk_t tpm_version_info; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_tpm_version_info_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(PTS_TPM_VER_INFO_SIZE); + writer->write_data(writer, this->tpm_version_info); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_tpm_version_info_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_TPM_VER_INFO_SIZE) + { + DBG1(DBG_TNC, "insufficient data for TPM Version Information"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_data (reader, this->value.len, &this->tpm_version_info); + this->tpm_version_info = chunk_clone(this->tpm_version_info); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_tpm_version_info_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this->tpm_version_info.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_tpm_version_info_t, get_tpm_version_info, chunk_t, + private_tcg_pts_attr_tpm_version_info_t *this) +{ + return this->tpm_version_info; +} + +METHOD(tcg_pts_attr_tpm_version_info_t, set_tpm_version_info, void, + private_tcg_pts_attr_tpm_version_info_t *this, + chunk_t tpm_version_info) +{ + this->tpm_version_info = tpm_version_info; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_tpm_version_info_create(chunk_t tpm_version_info) +{ + private_tcg_pts_attr_tpm_version_info_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_tpm_version_info = _get_tpm_version_info, + .set_tpm_version_info = _set_tpm_version_info, + }, + .type = { PEN_TCG, TCG_PTS_TPM_VERSION_INFO }, + .tpm_version_info = chunk_clone(tpm_version_info), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_tpm_version_info_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_tpm_version_info_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_tpm_version_info = _get_tpm_version_info, + .set_tpm_version_info = _set_tpm_version_info, + }, + .type = { PEN_TCG, TCG_PTS_TPM_VERSION_INFO }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_tpm_version_info.h b/src/libimcv/tcg/pts/tcg_pts_attr_tpm_version_info.h new file mode 100644 index 000000000..d87d72b22 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_tpm_version_info.h @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_tpm_version_info tcg_pts_attr_tpm_version_info + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_TPM_VERSION_INFO_H_ +#define TCG_PTS_ATTR_TPM_VERSION_INFO_H_ + +typedef struct tcg_pts_attr_tpm_version_info_t tcg_pts_attr_tpm_version_info_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG PTS TPM Version Info Attribute + * + */ +struct tcg_pts_attr_tpm_version_info_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get TPM Version Info + * + * @return TPM version info + */ + chunk_t (*get_tpm_version_info)(tcg_pts_attr_tpm_version_info_t *this); + + /** + * Set TPM Version Info + * + * @param tpm_version_info TPM version info + */ + void (*set_tpm_version_info)(tcg_pts_attr_tpm_version_info_t *this, + chunk_t tpm_version_info); +}; + +/** + * Creates an tcg_pts_attr_tpm_version_info_t object + * + * @param tpm_version_info TPM version info + */ +pa_tnc_attr_t* tcg_pts_attr_tpm_version_info_create(chunk_t tpm_version_info); + +/** + * Creates an tcg_pts_attr_tpm_version_info_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_tpm_version_info_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_TPM_VERSION_INFO_H_ @}*/ diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_unix_file_meta.c b/src/libimcv/tcg/pts/tcg_pts_attr_unix_file_meta.c new file mode 100644 index 000000000..7c176fdf6 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_unix_file_meta.c @@ -0,0 +1,372 @@ +/* + * Copyright (C) 2011-2012 Sansar Choinyambuu + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#define _GNU_SOURCE /* for stdndup() */ +#include <string.h> + +#include "tcg_pts_attr_unix_file_meta.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <collections/linked_list.h> +#include <utils/debug.h> + +typedef struct private_tcg_pts_attr_file_meta_t private_tcg_pts_attr_file_meta_t; + +/** + * Unix-Style File Metadata + * see section 3.17.3 of PTS Protocol: Binding to TNC IF-M Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Number of Files included | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Number of Files included | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File metadata Length | Type | Reserved | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Size | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Size | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Create Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Create Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Modify Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Modify Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Access Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last Access Time | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Owner ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Owner ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Group ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | File Group ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ~ Filename (Variable Length) ~ + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * ........................... + */ + +#define PTS_FILE_META_SIZE 8 +#define PTS_FILE_MEAS_RESERVED 0x00 +#define PTS_FILE_METADATA_SIZE 52 + +/** + * Private data of an tcg_pts_attr_file_meta_t object. + */ +struct private_tcg_pts_attr_file_meta_t { + + /** + * Public members of tcg_pts_attr_file_meta_t + */ + tcg_pts_attr_file_meta_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * PTS File Metadata + */ + pts_file_meta_t *metadata; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_pts_attr_file_meta_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_pts_attr_file_meta_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_pts_attr_file_meta_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_pts_attr_file_meta_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_pts_attr_file_meta_t *this) +{ + bio_writer_t *writer; + enumerator_t *enumerator; + pts_file_metadata_t *entry; + u_int64_t number_of_files; + + if (this->value.ptr) + { + return; + } + number_of_files = this->metadata->get_file_count(this->metadata); + writer = bio_writer_create(PTS_FILE_META_SIZE); + + writer->write_uint64(writer, number_of_files); + + enumerator = this->metadata->create_enumerator(this->metadata); + while (enumerator->enumerate(enumerator, &entry)) + { + writer->write_uint16(writer, PTS_FILE_METADATA_SIZE + + strlen(entry->filename)); + writer->write_uint8 (writer, entry->type); + writer->write_uint8 (writer, PTS_FILE_MEAS_RESERVED); + writer->write_uint64(writer, entry->filesize); + writer->write_uint64(writer, entry->created); + writer->write_uint64(writer, entry->modified); + writer->write_uint64(writer, entry->accessed); + writer->write_uint64(writer, entry->owner); + writer->write_uint64(writer, entry->group); + writer->write_data (writer, chunk_create(entry->filename, + strlen(entry->filename))); + } + enumerator->destroy(enumerator); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_pts_attr_file_meta_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + pts_file_metadata_t *entry; + u_int8_t type, reserved; + u_int16_t len; + u_int64_t number_of_files, filesize, created, modified, accessed; + u_int64_t owner, group; + chunk_t filename; + status_t status = FAILED; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < PTS_FILE_META_SIZE) + { + DBG1(DBG_TNC, "insufficient data for PTS Unix-Style file metadata header"); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint64(reader, &number_of_files); + + this->metadata = pts_file_meta_create(); + + while (number_of_files--) + { + if (!reader->read_uint16(reader, &len)) + { + DBG1(DBG_TNC, "insufficient data for PTS file metadata length"); + goto end; + } + if (!reader->read_uint8(reader, &type)) + { + DBG1(DBG_TNC, "insufficient data for file type"); + goto end; + } + if (!reader->read_uint8(reader, &reserved)) + { + DBG1(DBG_TNC, "insufficient data for reserved field"); + goto end; + } + if (!reader->read_uint64(reader, &filesize)) + { + DBG1(DBG_TNC, "insufficient data for file size"); + goto end; + } + if (!reader->read_uint64(reader, &created)) + { + DBG1(DBG_TNC, "insufficient data for file create time"); + goto end; + } + if (!reader->read_uint64(reader, &modified)) + { + DBG1(DBG_TNC, "insufficient data for last modify time"); + goto end; + } + if (!reader->read_uint64(reader, &accessed)) + { + DBG1(DBG_TNC, "insufficient data for last access time"); + goto end; + } + if (!reader->read_uint64(reader, &owner)) + { + DBG1(DBG_TNC, "insufficient data for owner id"); + goto end; + } + if (!reader->read_uint64(reader, &group)) + { + DBG1(DBG_TNC, "insufficient data for group id"); + goto end; + } + if (!reader->read_data(reader, len - PTS_FILE_METADATA_SIZE, &filename)) + { + DBG1(DBG_TNC, "insufficient data for filename"); + goto end; + } + + entry = malloc_thing(pts_file_metadata_t); + entry->type = type; + entry->filesize = filesize; + entry->created = created; + entry->modified = modified; + entry->accessed = accessed; + entry->owner = owner; + entry->group = group; + entry->filename = strndup(filename.ptr, filename.len); + + this->metadata->add(this->metadata, entry); + } + status = SUCCESS; + +end: + reader->destroy(reader); + return status; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_pts_attr_file_meta_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_pts_attr_file_meta_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_pts_attr_file_meta_t *this) +{ + if (ref_put(&this->ref)) + { + DESTROY_IF(this->metadata); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_pts_attr_file_meta_t, get_metadata, pts_file_meta_t*, + private_tcg_pts_attr_file_meta_t *this) +{ + return this->metadata; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_unix_file_meta_create(pts_file_meta_t *metadata) +{ + private_tcg_pts_attr_file_meta_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_metadata = _get_metadata, + }, + .type = { PEN_TCG, TCG_PTS_UNIX_FILE_META }, + .metadata = metadata, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_pts_attr_unix_file_meta_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_pts_attr_file_meta_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_metadata = _get_metadata, + }, + .type = { PEN_TCG, TCG_PTS_UNIX_FILE_META }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/pts/tcg_pts_attr_unix_file_meta.h b/src/libimcv/tcg/pts/tcg_pts_attr_unix_file_meta.h new file mode 100644 index 000000000..d08261cc9 --- /dev/null +++ b/src/libimcv/tcg/pts/tcg_pts_attr_unix_file_meta.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2011 Sansar Choinyambuu + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_pts_attr_unix_file_meta tcg_pts_attr_unix_file_meta + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_PTS_ATTR_UNIX_FILE_META_H_ +#define TCG_PTS_ATTR_UNIX_FILE_META_H_ + +typedef struct tcg_pts_attr_file_meta_t tcg_pts_attr_file_meta_t; + +#include "tcg/tcg_attr.h" +#include "pa_tnc/pa_tnc_attr.h" +#include "pts/pts.h" +#include "pts/pts_file_meta.h" + +/** + * Class implementing the TCG PTS File Measurement attribute + * + */ +struct tcg_pts_attr_file_meta_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get PTS File Metadata + * + * @return PTS File Metadata + */ + pts_file_meta_t* (*get_metadata)(tcg_pts_attr_file_meta_t *this); + +}; + +/** + * Creates an tcg_pts_attr_file_meta_t object + * + * @param metadata PTS File Metadata + */ +pa_tnc_attr_t* tcg_pts_attr_unix_file_meta_create(pts_file_meta_t *metadata); + +/** + * Creates an tcg_pts_attr_file_meta_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_pts_attr_unix_file_meta_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_PTS_ATTR_UNIX_FILE_META_H_ @}*/ diff --git a/src/libimcv/tcg/seg/tcg_seg_attr_max_size.c b/src/libimcv/tcg/seg/tcg_seg_attr_max_size.c new file mode 100644 index 000000000..010eaf83d --- /dev/null +++ b/src/libimcv/tcg/seg/tcg_seg_attr_max_size.c @@ -0,0 +1,254 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_seg_attr_max_size.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_seg_attr_max_size_t private_tcg_seg_attr_max_size_t; + +/** + * Maximum Attribute Size Request/Response + * see TCG IF-M Segmentation Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Max Attribute Size | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Max Segment Size | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +/** + * Private data of an tcg_seg_attr_max_size_t object. + */ +struct private_tcg_seg_attr_max_size_t { + + /** + * Public members of tcg_seg_attr_max_size_t + */ + tcg_seg_attr_max_size_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Maximum IF-M attribute size in octets + */ + uint32_t max_attr_size; + + /** + * Maximum IF-M attribute segment size in octets + */ + uint32_t max_seg_size; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_seg_attr_max_size_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_seg_attr_max_size_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_seg_attr_max_size_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_seg_attr_max_size_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_seg_attr_max_size_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(TCG_SEG_ATTR_MAX_SIZE_SIZE); + writer->write_uint32(writer, this->max_attr_size); + writer->write_uint32(writer, this->max_seg_size); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_seg_attr_max_size_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < TCG_SEG_ATTR_MAX_SIZE_SIZE) + { + DBG1(DBG_TNC, "insufficient data for %N", tcg_attr_names, + this->type.type); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint32(reader, &this->max_attr_size); + reader->read_uint32(reader, &this->max_seg_size); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_seg_attr_max_size_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_seg_attr_max_size_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_seg_attr_max_size_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_seg_attr_max_size_t, get_attr_size, void, + private_tcg_seg_attr_max_size_t *this, uint32_t *max_attr_size, + uint32_t *max_seg_size) +{ + if (max_attr_size) + { + *max_attr_size = this->max_attr_size; + } + if (max_seg_size) + { + *max_seg_size = this->max_seg_size; + } +} + +/** + * Described in header. + */ +pa_tnc_attr_t* tcg_seg_attr_max_size_create(uint32_t max_attr_size, + uint32_t max_seg_size, + bool request) +{ + private_tcg_seg_attr_max_size_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_attr_size = _get_attr_size, + }, + .type = { PEN_TCG, request ? TCG_SEG_MAX_ATTR_SIZE_REQ : + TCG_SEG_MAX_ATTR_SIZE_RESP }, + .max_attr_size = max_attr_size, + .max_seg_size = max_seg_size, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_seg_attr_max_size_create_from_data(size_t length, + chunk_t data, + bool request) +{ + private_tcg_seg_attr_max_size_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_attr_size = _get_attr_size, + }, + .type = { PEN_TCG, request ? TCG_SEG_MAX_ATTR_SIZE_REQ : + TCG_SEG_MAX_ATTR_SIZE_RESP }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/seg/tcg_seg_attr_max_size.h b/src/libimcv/tcg/seg/tcg_seg_attr_max_size.h new file mode 100644 index 000000000..72660acd5 --- /dev/null +++ b/src/libimcv/tcg/seg/tcg_seg_attr_max_size.h @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_seg_attr_max_size tcg_seg_attr_max_size + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_SEG_ATTR_MAX_SIZE_H_ +#define TCG_SEG_ATTR_MAX_SIZE_H_ + +typedef struct tcg_seg_attr_max_size_t tcg_seg_attr_max_size_t; + +#include "tcg/tcg_attr.h" + +#define TCG_SEG_ATTR_MAX_SIZE_SIZE 8 + +/** + * Class implementing the TCG Segmentation Maximum Attribute Size Attribute + */ +struct tcg_seg_attr_max_size_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get maximum IF-M attribute and segment size in octets + * + * @param max_attr_size Maximum IF-M attribute size in octets + * @param max_seg_size Maximum IF-M attribute segment size in octets + */ + void (*get_attr_size)(tcg_seg_attr_max_size_t *this, + uint32_t *max_attr_size, uint32_t *max_seg_size); + +}; + +/** + * Creates an tcg_seg_attr_max_size_t object + * + * @param max_attr_size Maximum IF-M attribute size in octets + * @param max_seg_size Maximum IF-M attribute segment size in octets + * @param request TRUE for a request, FALSE for a response + */ +pa_tnc_attr_t* tcg_seg_attr_max_size_create(uint32_t max_attr_size, + uint32_t max_seg_size, + bool request); + +/** + * Creates an tcg_seg_attr_max_size_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + * @param request TRUE for a request, FALSE for a response + */ +pa_tnc_attr_t* tcg_seg_attr_max_size_create_from_data(size_t length, + chunk_t value, + bool request); + +#endif /** TCG_SEG_ATTR_MAX_SIZE_H_ @}*/ diff --git a/src/libimcv/tcg/seg/tcg_seg_attr_next_seg.c b/src/libimcv/tcg/seg/tcg_seg_attr_next_seg.c new file mode 100644 index 000000000..995f64cad --- /dev/null +++ b/src/libimcv/tcg/seg/tcg_seg_attr_next_seg.c @@ -0,0 +1,258 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_seg_attr_next_seg.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_seg_attr_next_seg_t private_tcg_seg_attr_next_seg_t; + +typedef enum { + NEXT_SEG_FLAG_NONE = 0, + NEXT_SEG_FLAG_CANCEL = 1 +} next_seg_flags_t; + +/** + * Next Segment + * see TCG IF-M Segmentation Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |C| Reserved | Base Attribute ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +/** + * Private data of an tcg_seg_attr_next_seg_t object. + */ +struct private_tcg_seg_attr_next_seg_t { + + /** + * Public members of tcg_seg_attr_next_seg_t + */ + tcg_seg_attr_next_seg_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Cancel flag + */ + bool cancel_flag; + + /** + * Base Attribute ID + */ + uint32_t base_attr_id; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_seg_attr_next_seg_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_seg_attr_next_seg_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_seg_attr_next_seg_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_seg_attr_next_seg_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_seg_attr_next_seg_t *this) +{ + bio_writer_t *writer; + + if (this->value.ptr) + { + return; + } + writer = bio_writer_create(TCG_SEG_ATTR_NEXT_SEG_SIZE); + writer->write_uint8 (writer, this->cancel_flag ? NEXT_SEG_FLAG_CANCEL : + NEXT_SEG_FLAG_NONE); + writer->write_uint24(writer, this->base_attr_id); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_seg_attr_next_seg_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + uint8_t flags; + + *offset = 0; + + if (this->value.len < this->length) + { + DBG1(DBG_TNC, "segmentation not allowed for %N", tcg_attr_names, + this->type.type); + return FAILED; + } + if (this->value.len < TCG_SEG_ATTR_NEXT_SEG_SIZE) + { + DBG1(DBG_TNC, "insufficient data for %N", tcg_attr_names, + this->type.type); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &flags); + reader->read_uint24(reader, &this->base_attr_id); + reader->destroy(reader); + + this->cancel_flag = (flags & NEXT_SEG_FLAG_CANCEL); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_seg_attr_next_seg_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_seg_attr_next_seg_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_seg_attr_next_seg_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_seg_attr_next_seg_t, get_base_attr_id, uint32_t, + private_tcg_seg_attr_next_seg_t *this) +{ + return this->base_attr_id; +} + +METHOD(tcg_seg_attr_next_seg_t, get_cancel_flag, bool, + private_tcg_seg_attr_next_seg_t *this) +{ + return this->cancel_flag; +} + +/** + * Described in header. + */ +pa_tnc_attr_t* tcg_seg_attr_next_seg_create(uint32_t base_attr_id, bool cancel) +{ + private_tcg_seg_attr_next_seg_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_base_attr_id = _get_base_attr_id, + .get_cancel_flag = _get_cancel_flag, + }, + .type = { PEN_TCG, TCG_SEG_NEXT_SEG_REQ }, + .base_attr_id = base_attr_id, + .cancel_flag = cancel, + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_seg_attr_next_seg_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_seg_attr_next_seg_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_base_attr_id = _get_base_attr_id, + .get_cancel_flag = _get_cancel_flag, + }, + .type = { PEN_TCG, TCG_SEG_NEXT_SEG_REQ }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/seg/tcg_seg_attr_next_seg.h b/src/libimcv/tcg/seg/tcg_seg_attr_next_seg.h new file mode 100644 index 000000000..49a4d3666 --- /dev/null +++ b/src/libimcv/tcg/seg/tcg_seg_attr_next_seg.h @@ -0,0 +1,73 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_seg_attr_next_seg tcg_seg_attr_next_seg + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_SEG_ATTR_NEXT_SEG_H_ +#define TCG_SEG_ATTR_NEXT_SEG_H_ + +typedef struct tcg_seg_attr_next_seg_t tcg_seg_attr_next_seg_t; + +#include "tcg/tcg_attr.h" + +#define TCG_SEG_ATTR_NEXT_SEG_SIZE 4 + +/** + * Class implementing the TCG Segmentation Next Segment Attribute + */ +struct tcg_seg_attr_next_seg_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get Base Attribute ID + * + * @return Base Attribute ID + */ + uint32_t (*get_base_attr_id)(tcg_seg_attr_next_seg_t *this); + + /** + * Get the Cancel flag + * + * @return Cancel flag + */ + bool (*get_cancel_flag)(tcg_seg_attr_next_seg_t *this); + +}; + +/** + * Creates an tcg_seg_attr_next_seg_t object + * + * @param base_attr_id Base Attribute ID + * @param cancel If TRUE set Cancel flag + */ +pa_tnc_attr_t* tcg_seg_attr_next_seg_create(uint32_t base_attr_id, bool cancel); + +/** + * Creates an tcg_seg_attr_next_seg_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_seg_attr_next_seg_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_SEG_ATTR_NEXT_SEG_H_ @}*/ diff --git a/src/libimcv/tcg/seg/tcg_seg_attr_seg_env.c b/src/libimcv/tcg/seg/tcg_seg_attr_seg_env.c new file mode 100644 index 000000000..4f767539c --- /dev/null +++ b/src/libimcv/tcg/seg/tcg_seg_attr_seg_env.c @@ -0,0 +1,257 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_seg_attr_seg_env.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + +typedef struct private_tcg_seg_attr_seg_env_t private_tcg_seg_attr_seg_env_t; + +/** + * Attribute Segment Envelope + * see TCG IF-M Segmentation Specification + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |M|S| Reserved | Base Attribute ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Segment Value (Variable Length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +/** + * Private data of an tcg_seg_attr_seg_env_t object. + */ +struct private_tcg_seg_attr_seg_env_t { + + /** + * Public members of tcg_seg_attr_seg_env_t + */ + tcg_seg_attr_seg_env_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * PA-TNC segmentation flags + */ + uint8_t flags; + + /** + * Base Attribute ID + */ + uint32_t base_attr_id; + + /** + * Attribute value + */ + chunk_t segment; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_seg_attr_seg_env_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_seg_attr_seg_env_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_seg_attr_seg_env_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_seg_attr_seg_env_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_seg_attr_seg_env_t *this) +{ + /* constructor already allocated and built value */ + this->length = this->value.len; + return; +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_seg_attr_seg_env_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + + *offset = 0; + + if (this->value.len < this->length) + { + DBG1(DBG_TNC, "segmentation not allowed for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + return FAILED; + } + if (this->value.len < TCG_SEG_ATTR_SEG_ENV_HEADER) + { + DBG1(DBG_TNC, "insufficient data for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + return FAILED; + } + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &this->flags); + reader->read_uint24(reader, &this->base_attr_id); + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_seg_attr_seg_env_t *this, chunk_t segment) +{ + /* no segments are expected */ +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_seg_attr_seg_env_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_seg_attr_seg_env_t *this) +{ + if (ref_put(&this->ref)) + { + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_seg_attr_seg_env_t, get_segment, chunk_t, + private_tcg_seg_attr_seg_env_t *this, uint8_t *flags) +{ + if (flags) + { + *flags = this->flags; + } + return chunk_skip(this->value, TCG_SEG_ATTR_SEG_ENV_HEADER); +} + +METHOD(tcg_seg_attr_seg_env_t, get_base_attr_id, uint32_t, + private_tcg_seg_attr_seg_env_t *this) +{ + return this->base_attr_id; +} + +/** + * Described in header. + */ +pa_tnc_attr_t* tcg_seg_attr_seg_env_create(chunk_t segment, uint8_t flags, + uint32_t base_attr_id) +{ + private_tcg_seg_attr_seg_env_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_base_attr_id = _get_base_attr_id, + .get_segment = _get_segment, + }, + .type = { PEN_TCG, TCG_SEG_ATTR_SEG_ENV }, + .flags = flags, + .base_attr_id = base_attr_id, + .value = chunk_alloc(TCG_SEG_ATTR_SEG_ENV_HEADER + segment.len), + .ref = 1, + ); + + htoun32(this->value.ptr, base_attr_id); + *this->value.ptr = flags; + memcpy(this->value.ptr + TCG_SEG_ATTR_SEG_ENV_HEADER, + segment.ptr, segment.len); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_seg_attr_seg_env_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_seg_attr_seg_env_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_base_attr_id = _get_base_attr_id, + .get_segment = _get_segment, + }, + .type = { PEN_TCG, TCG_SEG_ATTR_SEG_ENV }, + .length = length, + .value = chunk_clone(data), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/seg/tcg_seg_attr_seg_env.h b/src/libimcv/tcg/seg/tcg_seg_attr_seg_env.h new file mode 100644 index 000000000..a8b3d7c34 --- /dev/null +++ b/src/libimcv/tcg/seg/tcg_seg_attr_seg_env.h @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_seg_attr_seg_env tcg_seg_attr_seg_env + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_SEG_ATTR_SEG_ENV_H_ +#define TCG_SEG_ATTR_SEG_ENV_H_ + +typedef struct tcg_seg_attr_seg_env_t tcg_seg_attr_seg_env_t; + +#include "tcg/tcg_attr.h" + +#define TCG_SEG_ATTR_SEG_ENV_HEADER 4 + +/** + * Class implementing the TCG Segmentation Envelope Attribute + */ +struct tcg_seg_attr_seg_env_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get enveloped attribute segment + * + * @param flags Segmentation flags + * @return Segment + */ + chunk_t (*get_segment)(tcg_seg_attr_seg_env_t *this, uint8_t *flags); + + /** + * Get Base Attribute ID + * + * @return Base Attribute ID + */ + uint32_t (*get_base_attr_id)(tcg_seg_attr_seg_env_t *this); + +}; + +/** + * Creates an tcg_seg_attr_seg_env_t object + * + * @param segment Attribute segment + * @param flags Segmentation flags + * @param base_attr_id Base Attribute ID + */ +pa_tnc_attr_t* tcg_seg_attr_seg_env_create(chunk_t segment, uint8_t flags, + uint32_t base_attr_id); + +/** + * Creates an tcg_seg_attr_seg_env_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_seg_attr_seg_env_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_SEG_ATTR_SEG_ENV_H_ @}*/ diff --git a/src/libimcv/tcg/swid/tcg_swid_attr_req.c b/src/libimcv/tcg/swid/tcg_swid_attr_req.c new file mode 100644 index 000000000..561242758 --- /dev/null +++ b/src/libimcv/tcg/swid/tcg_swid_attr_req.c @@ -0,0 +1,349 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_swid_attr_req.h" + +#include "swid/swid_tag_id.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> +#include <collections/linked_list.h> + +typedef struct private_tcg_swid_attr_req_t private_tcg_swid_attr_req_t; + +/** + * SWID Request + * see section 4.7 of TCG TNC SWID Message and Attributes for IF-M + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |R|S|C| Reserved| Tag ID Count | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Request ID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Earliest EID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Tag Creator Length | Tag Creator (variable length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Unique Software ID Length |Unique Software ID (var length)| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define SWID_REQ_RESERVED_MASK 0xE0 + +/** + * Private data of an tcg_swid_attr_req_t object. + */ +struct private_tcg_swid_attr_req_t { + + /** + * Public members of tcg_swid_attr_req_t + */ + tcg_swid_attr_req_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + + /** + * Attribute value or segment + */ + chunk_t value; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * SWID request flags + */ + u_int8_t flags; + + /** + * Request ID + */ + u_int32_t request_id; + + /** + * Earliest EID + */ + u_int32_t earliest_eid; + + /** + * List of Target Tag Identifiers + */ + swid_inventory_t *targets; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_swid_attr_req_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_swid_attr_req_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_swid_attr_req_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_swid_attr_req_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_swid_attr_req_t *this) +{ + bio_writer_t *writer; + chunk_t tag_creator, unique_sw_id; + swid_tag_id_t *tag_id; + enumerator_t *enumerator; + + if (this->value.ptr) + { + return; + } + + writer = bio_writer_create(TCG_SWID_REQ_MIN_SIZE); + writer->write_uint8 (writer, this->flags); + writer->write_uint24(writer, this->targets->get_count(this->targets)); + writer->write_uint32(writer, this->request_id); + writer->write_uint32(writer, this->earliest_eid); + + enumerator = this->targets->create_enumerator(this->targets); + while (enumerator->enumerate(enumerator, &tag_id)) + { + tag_creator = tag_id->get_tag_creator(tag_id); + unique_sw_id = tag_id->get_unique_sw_id(tag_id, NULL); + writer->write_data16(writer, tag_creator); + writer->write_data16(writer, unique_sw_id); + } + enumerator->destroy(enumerator); + + this->value = writer->extract_buf(writer); + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_swid_attr_req_t *this, u_int32_t *offset) +{ + bio_reader_t *reader; + u_int32_t tag_id_count; + chunk_t tag_creator, unique_sw_id; + swid_tag_id_t *tag_id; + + *offset = 0; + + if (this->value.len < this->length) + { + return NEED_MORE; + } + if (this->value.len < TCG_SWID_REQ_MIN_SIZE) + { + DBG1(DBG_TNC, "insufficient data for SWID Request"); + return FAILED; + } + + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &this->flags); + reader->read_uint24(reader, &tag_id_count); + reader->read_uint32(reader, &this->request_id); + reader->read_uint32(reader, &this->earliest_eid); + + if (this->request_id == 0) + { + *offset = 4; + return FAILED; + } + *offset = TCG_SWID_REQ_MIN_SIZE; + + this->flags &= SWID_REQ_RESERVED_MASK; + + while (tag_id_count--) + { + if (!reader->read_data16(reader, &tag_creator)) + { + DBG1(DBG_TNC, "insufficient data for Tag Creator field"); + return FAILED; + } + *offset += 2 + tag_creator.len; + + if (!reader->read_data16(reader, &unique_sw_id)) + { + DBG1(DBG_TNC, "insufficient data for Unique Software ID"); + return FAILED; + } + *offset += 2 + unique_sw_id.len; + + tag_id = swid_tag_id_create(tag_creator, unique_sw_id, chunk_empty); + this->targets->add(this->targets, tag_id); + } + reader->destroy(reader); + + return SUCCESS; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_swid_attr_req_t *this, chunk_t segment) +{ + this->value = chunk_cat("mc", this->value, segment); +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_swid_attr_req_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_swid_attr_req_t *this) +{ + if (ref_put(&this->ref)) + { + this->targets->destroy(this->targets); + free(this->value.ptr); + free(this); + } +} + +METHOD(tcg_swid_attr_req_t, get_flags, u_int8_t, + private_tcg_swid_attr_req_t *this) +{ + return this->flags; +} + +METHOD(tcg_swid_attr_req_t, get_request_id, u_int32_t, + private_tcg_swid_attr_req_t *this) +{ + return this->request_id; +} + +METHOD(tcg_swid_attr_req_t, get_earliest_eid, u_int32_t, + private_tcg_swid_attr_req_t *this) +{ + return this->earliest_eid; +} + +METHOD(tcg_swid_attr_req_t, add_target, void, + private_tcg_swid_attr_req_t *this, swid_tag_id_t *tag_id) +{ + this->targets->add(this->targets, tag_id); +} + +METHOD(tcg_swid_attr_req_t, get_targets, swid_inventory_t*, + private_tcg_swid_attr_req_t *this) +{ + return this->targets; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_swid_attr_req_create(u_int8_t flags, u_int32_t request_id, + u_int32_t eid) +{ + private_tcg_swid_attr_req_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_flags = _get_flags, + .get_request_id = _get_request_id, + .get_earliest_eid = _get_earliest_eid, + .add_target = _add_target, + .get_targets = _get_targets, + }, + .type = { PEN_TCG, TCG_SWID_REQUEST }, + .flags = flags & SWID_REQ_RESERVED_MASK, + .request_id = request_id, + .earliest_eid = eid, + .targets = swid_inventory_create(FALSE), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_swid_attr_req_create_from_data(size_t length, chunk_t data) +{ + private_tcg_swid_attr_req_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .get_flags = _get_flags, + .get_request_id = _get_request_id, + .get_earliest_eid = _get_earliest_eid, + .add_target = _add_target, + .get_targets = _get_targets, + }, + .type = { PEN_TCG, TCG_SWID_REQUEST }, + .length = length, + .value = chunk_clone(data), + .targets = swid_inventory_create(FALSE), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/swid/tcg_swid_attr_req.h b/src/libimcv/tcg/swid/tcg_swid_attr_req.h new file mode 100644 index 000000000..fd2ccdc4f --- /dev/null +++ b/src/libimcv/tcg/swid/tcg_swid_attr_req.h @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_swid_attr_req tcg_swid_attr_req + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_SWID_ATTR_REQ_H_ +#define TCG_SWID_ATTR_REQ_H_ + +#define TCG_SWID_REQ_MIN_SIZE 12 + +typedef struct tcg_swid_attr_req_t tcg_swid_attr_req_t; +typedef enum tcg_swid_attr_req_flag_t tcg_swid_attr_req_flag_t; + +enum tcg_swid_attr_req_flag_t { + TCG_SWID_ATTR_REQ_FLAG_NONE = 0, + TCG_SWID_ATTR_REQ_FLAG_R = (1 << 7), + TCG_SWID_ATTR_REQ_FLAG_S = (1 << 6), + TCG_SWID_ATTR_REQ_FLAG_C = (1 << 5) +}; + +#include "tcg/tcg_attr.h" +#include "swid/swid_tag_id.h" +#include "swid/swid_inventory.h" +#include "pa_tnc/pa_tnc_attr.h" + +/** + * Class implementing the TCG SWID Request attribute + */ +struct tcg_swid_attr_req_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Get SWID request flags + * + * @return Flags + */ + u_int8_t (*get_flags)(tcg_swid_attr_req_t *this); + + /** + * Get Request ID + * + * @return Request ID + */ + u_int32_t (*get_request_id)(tcg_swid_attr_req_t *this); + + /** + * Get Earliest EID + * + * @return Event ID + */ + u_int32_t (*get_earliest_eid)(tcg_swid_attr_req_t *this); + + /** + * Add Tag ID + * + * @param tag_id SWID Tag ID (is not cloned by constructor!) + */ + void (*add_target)(tcg_swid_attr_req_t *this, swid_tag_id_t *tag_id); + + /** + * Create Tag ID enumerator + * + * @return Get a list of target tag IDs + */ + swid_inventory_t* (*get_targets)(tcg_swid_attr_req_t *this); + +}; + +/** + * Creates an tcg_swid_attr_req_t object + * + * @param flags Sets the C|S|R flags + * @param request_id Request ID + * @param eid Earliest Event ID + */ +pa_tnc_attr_t* tcg_swid_attr_req_create(u_int8_t flags, u_int32_t request_id, + u_int32_t eid); + +/** + * Creates an tcg_swid_attr_req_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_swid_attr_req_create_from_data(size_t length, chunk_t value); + +#endif /** TCG_SWID_ATTR_REQ_H_ @}*/ diff --git a/src/libimcv/tcg/swid/tcg_swid_attr_tag_id_inv.c b/src/libimcv/tcg/swid/tcg_swid_attr_tag_id_inv.c new file mode 100644 index 000000000..560d5878f --- /dev/null +++ b/src/libimcv/tcg/swid/tcg_swid_attr_tag_id_inv.c @@ -0,0 +1,396 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_swid_attr_tag_id_inv.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + + +typedef struct private_tcg_swid_attr_tag_id_inv_t private_tcg_swid_attr_tag_id_inv_t; + +/** + * SWID Tag Identifier Inventory + * see section 4.8 of TCG TNC SWID Message and Attributes for IF-M + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Tag ID Count | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Request ID Copy | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | EID Epoch | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last EID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Tag Creator Length | Tag Creator (variable length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Unique Software ID Length |Unique Software ID (var length)| + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Instance ID Length | Instance ID (variable length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define TCG_SWID_TAG_ID_INV_RESERVED 0x00 + +/** + * Private data of an tcg_swid_attr_tag_id_inv_t object. + */ +struct private_tcg_swid_attr_tag_id_inv_t { + + /** + * Public members of tcg_swid_attr_tag_id_inv_t + */ + tcg_swid_attr_tag_id_inv_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Offset up to which attribute value has been processed + */ + size_t offset; + + /** + * Current position of attribute value pointer + */ + chunk_t value; + + /** + * Contains complete attribute or current segment + */ + chunk_t segment; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Request ID + */ + uint32_t request_id; + + /** + * Event ID Epoch + */ + uint32_t eid_epoch; + + /** + * Last Event ID + */ + uint32_t last_eid; + + /** + * Number of SWID Tag IDs in attribute + */ + uint32_t tag_id_count; + + /** + * SWID Tag ID Inventory + */ + swid_inventory_t *inventory; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_swid_attr_tag_id_inv_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + bio_writer_t *writer; + swid_tag_id_t *tag_id; + chunk_t tag_creator, unique_sw_id, instance_id; + enumerator_t *enumerator; + + if (this->value.ptr) + { + return; + } + + writer = bio_writer_create(TCG_SWID_TAG_ID_INV_MIN_SIZE); + writer->write_uint8 (writer, TCG_SWID_TAG_ID_INV_RESERVED); + writer->write_uint24(writer, this->inventory->get_count(this->inventory)); + writer->write_uint32(writer, this->request_id); + writer->write_uint32(writer, this->eid_epoch); + writer->write_uint32(writer, this->last_eid); + + enumerator = this->inventory->create_enumerator(this->inventory); + while (enumerator->enumerate(enumerator, &tag_id)) + { + tag_creator = tag_id->get_tag_creator(tag_id); + unique_sw_id = tag_id->get_unique_sw_id(tag_id, &instance_id); + writer->write_data16(writer, tag_creator); + writer->write_data16(writer, unique_sw_id); + writer->write_data16(writer, instance_id); + } + enumerator->destroy(enumerator); + + this->value = writer->extract_buf(writer); + this->segment = this->value; + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_swid_attr_tag_id_inv_t *this, uint32_t *offset) +{ + bio_reader_t *reader; + uint8_t reserved; + chunk_t tag_creator, unique_sw_id, instance_id; + swid_tag_id_t *tag_id; + status_t status = NEED_MORE; + + if (this->offset == 0) + { + if (this->length < TCG_SWID_TAG_ID_INV_MIN_SIZE) + { + DBG1(DBG_TNC, "insufficient data for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + *offset = this->offset; + return FAILED; + } + if (this->value.len < TCG_SWID_TAG_ID_INV_MIN_SIZE) + { + return NEED_MORE; + } + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &reserved); + reader->read_uint24(reader, &this->tag_id_count); + reader->read_uint32(reader, &this->request_id); + reader->read_uint32(reader, &this->eid_epoch); + reader->read_uint32(reader, &this->last_eid); + this->offset = TCG_SWID_TAG_ID_INV_MIN_SIZE; + this->value = reader->peek(reader); + reader->destroy(reader); + } + + reader = bio_reader_create(this->value); + + while (this->tag_id_count) + { + if (!reader->read_data16(reader, &tag_creator) || + !reader->read_data16(reader, &unique_sw_id) || + !reader->read_data16(reader, &instance_id)) + { + goto end; + } + tag_id = swid_tag_id_create(tag_creator, unique_sw_id, instance_id); + this->inventory->add(this->inventory, tag_id); + this->offset += this->value.len - reader->remaining(reader); + this->value = reader->peek(reader); + + /* at least one tag ID was processed */ + status = SUCCESS; + this->tag_id_count--; + } + + if (this->length != this->offset) + { + DBG1(DBG_TNC, "inconsistent length for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + *offset = this->offset; + status = FAILED; + } + +end: + reader->destroy(reader); + return status; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_swid_attr_tag_id_inv_t *this, chunk_t segment) +{ + this->value = chunk_cat("cc", this->value, segment); + chunk_free(&this->segment); + this->segment = this->value; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + if (ref_put(&this->ref)) + { + this->inventory->destroy(this->inventory); + free(this->segment.ptr); + free(this); + } +} + +METHOD(tcg_swid_attr_tag_id_inv_t, add, void, + private_tcg_swid_attr_tag_id_inv_t *this, swid_tag_id_t *tag_id) +{ + this->inventory->add(this->inventory, tag_id); +} + +METHOD(tcg_swid_attr_tag_id_inv_t, get_request_id, uint32_t, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + return this->request_id; +} + +METHOD(tcg_swid_attr_tag_id_inv_t, get_last_eid, uint32_t, + private_tcg_swid_attr_tag_id_inv_t *this, uint32_t *eid_epoch) +{ + if (eid_epoch) + { + *eid_epoch = this->eid_epoch; + } + return this->last_eid; +} + +METHOD(tcg_swid_attr_tag_id_inv_t, get_tag_id_count, uint32_t, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + return this->tag_id_count; +} + +METHOD(tcg_swid_attr_tag_id_inv_t, get_inventory, swid_inventory_t*, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + return this->inventory; +} + +METHOD(tcg_swid_attr_tag_id_inv_t, clear_inventory, void, + private_tcg_swid_attr_tag_id_inv_t *this) +{ + this->inventory->destroy(this->inventory); + this->inventory = swid_inventory_create(FALSE); +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_swid_attr_tag_id_inv_create(uint32_t request_id, + uint32_t eid_epoch, + uint32_t eid) +{ + private_tcg_swid_attr_tag_id_inv_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .add = _add, + .get_request_id = _get_request_id, + .get_last_eid = _get_last_eid, + .get_tag_id_count = _get_tag_id_count, + .get_inventory = _get_inventory, + .clear_inventory = _clear_inventory, + }, + .type = { PEN_TCG, TCG_SWID_TAG_ID_INVENTORY }, + .request_id = request_id, + .eid_epoch = eid_epoch, + .last_eid = eid, + .inventory = swid_inventory_create(FALSE), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_swid_attr_tag_id_inv_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_swid_attr_tag_id_inv_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .add = _add, + .get_request_id = _get_request_id, + .get_last_eid = _get_last_eid, + .get_tag_id_count = _get_tag_id_count, + .get_inventory = _get_inventory, + .clear_inventory = _clear_inventory, + }, + .type = { PEN_TCG, TCG_SWID_TAG_ID_INVENTORY }, + .length = length, + .segment = chunk_clone(data), + .inventory = swid_inventory_create(FALSE), + .ref = 1, + ); + + /* received either complete attribute value or first segment */ + this->value = this->segment; + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/swid/tcg_swid_attr_tag_id_inv.h b/src/libimcv/tcg/swid/tcg_swid_attr_tag_id_inv.h new file mode 100644 index 000000000..e9db9b3c6 --- /dev/null +++ b/src/libimcv/tcg/swid/tcg_swid_attr_tag_id_inv.h @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_swid_attr_tag_id_inv tcg_swid_attr_tag_id_inv + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_SWID_ATTR_TAG_ID_INV_H_ +#define TCG_SWID_ATTR_TAG_ID_INV_H_ + +typedef struct tcg_swid_attr_tag_id_inv_t tcg_swid_attr_tag_id_inv_t; + +#include "tcg/tcg_attr.h" +#include "swid/swid_tag_id.h" +#include "swid/swid_inventory.h" + +#include <pa_tnc/pa_tnc_attr.h> + +#define TCG_SWID_TAG_ID_INV_MIN_SIZE 16 + +/** + * Class implementing the TCG SWID Tag Identifier Inventory attribute + * + */ +struct tcg_swid_attr_tag_id_inv_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Add a Tag ID to the attribute + * + * @param tag_id SWID Tag ID to be added + */ + void (*add)(tcg_swid_attr_tag_id_inv_t *this, swid_tag_id_t *tag_id); + + /** + * Get Request ID + * + * @return Request ID + */ + uint32_t (*get_request_id)(tcg_swid_attr_tag_id_inv_t *this); + + /** + * Get Last Event ID + * + * @param eid_epoch Event ID Epoch + * @return Last Event ID + */ + uint32_t (*get_last_eid)(tcg_swid_attr_tag_id_inv_t *this, + uint32_t *eid_epoch); + + /** + * Get count of remaining SWID tag IDs + * + * @return SWID Tag ID count + */ + uint32_t (*get_tag_id_count)(tcg_swid_attr_tag_id_inv_t *this); + + /** + * Get Inventory of SWID tag IDs + * + * @result SWID Tag ID Inventory + */ + swid_inventory_t* (*get_inventory)(tcg_swid_attr_tag_id_inv_t *this); + + /** + * Remove all SWID Tag IDs from the Inventory + */ + void (*clear_inventory)(tcg_swid_attr_tag_id_inv_t *this); + +}; + +/** + * Creates an tcg_swid_attr_tag_id_inv_t object + * + * @param request_id Copy of the Request ID + * @param eid_epoch Event ID Epoch + * @param eid Last Event ID + */ +pa_tnc_attr_t* tcg_swid_attr_tag_id_inv_create(uint32_t request_id, + uint32_t eid_epoch, + uint32_t eid); + +/** + * Creates an tcg_swid_attr_tag_id_inv_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_swid_attr_tag_id_inv_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_SWID_ATTR_TAG_ID_INV_H_ @}*/ diff --git a/src/libimcv/tcg/swid/tcg_swid_attr_tag_inv.c b/src/libimcv/tcg/swid/tcg_swid_attr_tag_inv.c new file mode 100644 index 000000000..013482441 --- /dev/null +++ b/src/libimcv/tcg/swid/tcg_swid_attr_tag_inv.c @@ -0,0 +1,389 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_swid_attr_tag_inv.h" + +#include <pa_tnc/pa_tnc_msg.h> +#include <bio/bio_writer.h> +#include <bio/bio_reader.h> +#include <utils/debug.h> + + +typedef struct private_tcg_swid_attr_tag_inv_t private_tcg_swid_attr_tag_inv_t; + +/** + * SWID Tag Inventory + * see section 4.10 of TCG TNC SWID Message and Attributes for IF-M + * + * 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Reserved | Tag ID Count | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Request ID Copy | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | EID Epoch | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Last EID | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Instance ID Length | Instance ID (var. length) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Tag Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Tag (Variable) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +#define TCG_SWID_TAG_INV_RESERVED 0x00 + +/** + * Private data of an tcg_swid_attr_tag_inv_t object. + */ +struct private_tcg_swid_attr_tag_inv_t { + + /** + * Public members of tcg_swid_attr_tag_inv_t + */ + tcg_swid_attr_tag_inv_t public; + + /** + * Vendor-specific attribute type + */ + pen_type_t type; + + /** + * Length of attribute value + */ + size_t length; + + /** + * Offset up to which attribute value has been processed + */ + size_t offset; + + /** + * Current position of attribute value pointer + */ + chunk_t value; + + /** + * Contains complete attribute or current segment + */ + chunk_t segment; + + /** + * Noskip flag + */ + bool noskip_flag; + + /** + * Request ID + */ + uint32_t request_id; + + /** + * Event ID Epoch + */ + uint32_t eid_epoch; + + /** + * Last Event ID + */ + uint32_t last_eid; + + /** + * Number of SWID Tags in attribute + */ + uint32_t tag_count; + + /** + * SWID Tag Inventory + */ + swid_inventory_t *inventory; + + /** + * Reference count + */ + refcount_t ref; +}; + +METHOD(pa_tnc_attr_t, get_type, pen_type_t, + private_tcg_swid_attr_tag_inv_t *this) +{ + return this->type; +} + +METHOD(pa_tnc_attr_t, get_value, chunk_t, + private_tcg_swid_attr_tag_inv_t *this) +{ + return this->value; +} + +METHOD(pa_tnc_attr_t, get_noskip_flag, bool, + private_tcg_swid_attr_tag_inv_t *this) +{ + return this->noskip_flag; +} + +METHOD(pa_tnc_attr_t, set_noskip_flag,void, + private_tcg_swid_attr_tag_inv_t *this, bool noskip) +{ + this->noskip_flag = noskip; +} + +METHOD(pa_tnc_attr_t, build, void, + private_tcg_swid_attr_tag_inv_t *this) +{ + bio_writer_t *writer; + swid_tag_t *tag; + enumerator_t *enumerator; + + if (this->value.ptr) + { + return; + } + + writer = bio_writer_create(TCG_SWID_TAG_INV_MIN_SIZE); + writer->write_uint8 (writer, TCG_SWID_TAG_INV_RESERVED); + writer->write_uint24(writer, this->inventory->get_count(this->inventory)); + writer->write_uint32(writer, this->request_id); + writer->write_uint32(writer, this->eid_epoch); + writer->write_uint32(writer, this->last_eid); + + enumerator = this->inventory->create_enumerator(this->inventory); + while (enumerator->enumerate(enumerator, &tag)) + { + writer->write_data16(writer, tag->get_instance_id(tag)); + writer->write_data32(writer, tag->get_encoding(tag)); + } + enumerator->destroy(enumerator); + + this->value = writer->extract_buf(writer); + this->segment = this->value; + this->length = this->value.len; + writer->destroy(writer); +} + +METHOD(pa_tnc_attr_t, process, status_t, + private_tcg_swid_attr_tag_inv_t *this, uint32_t *offset) +{ + bio_reader_t *reader; + uint8_t reserved; + chunk_t tag_encoding, instance_id; + swid_tag_t *tag; + status_t status = NEED_MORE; + + if (this->offset == 0) + { + if (this->length < TCG_SWID_TAG_INV_MIN_SIZE) + { + DBG1(DBG_TNC, "insufficient data for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + *offset = this->offset; + return FAILED; + } + if (this->value.len < TCG_SWID_TAG_INV_MIN_SIZE) + { + return NEED_MORE; + } + reader = bio_reader_create(this->value); + reader->read_uint8 (reader, &reserved); + reader->read_uint24(reader, &this->tag_count); + reader->read_uint32(reader, &this->request_id); + reader->read_uint32(reader, &this->eid_epoch); + reader->read_uint32(reader, &this->last_eid); + this->offset = TCG_SWID_TAG_INV_MIN_SIZE; + this->value = reader->peek(reader); + reader->destroy(reader); + } + + reader = bio_reader_create(this->value); + + while (this->tag_count) + { + if (!reader->read_data16(reader, &instance_id) || + !reader->read_data32(reader, &tag_encoding)) + { + goto end; + } + tag = swid_tag_create(tag_encoding, instance_id); + this->inventory->add(this->inventory, tag); + this->offset += this->value.len - reader->remaining(reader); + this->value = reader->peek(reader); + + /* at least one tag was processed */ + status = SUCCESS; + this->tag_count--; + } + + if (this->length != this->offset) + { + DBG1(DBG_TNC, "inconsistent length for %N/%N", pen_names, PEN_TCG, + tcg_attr_names, this->type.type); + *offset = this->offset; + status = FAILED; + } + +end: + reader->destroy(reader); + return status; +} + +METHOD(pa_tnc_attr_t, add_segment, void, + private_tcg_swid_attr_tag_inv_t *this, chunk_t segment) +{ + this->value = chunk_cat("cc", this->value, segment); + chunk_free(&this->segment); + this->segment = this->value; +} + +METHOD(pa_tnc_attr_t, get_ref, pa_tnc_attr_t*, + private_tcg_swid_attr_tag_inv_t *this) +{ + ref_get(&this->ref); + return &this->public.pa_tnc_attribute; +} + +METHOD(pa_tnc_attr_t, destroy, void, + private_tcg_swid_attr_tag_inv_t *this) +{ + if (ref_put(&this->ref)) + { + this->inventory->destroy(this->inventory); + free(this->segment.ptr); + free(this); + } +} + +METHOD(tcg_swid_attr_tag_inv_t, add, void, + private_tcg_swid_attr_tag_inv_t *this, swid_tag_t *tag) +{ + this->inventory->add(this->inventory, tag); +} + +METHOD(tcg_swid_attr_tag_inv_t, get_request_id, uint32_t, + private_tcg_swid_attr_tag_inv_t *this) +{ + return this->request_id; +} + +METHOD(tcg_swid_attr_tag_inv_t, get_last_eid, uint32_t, + private_tcg_swid_attr_tag_inv_t *this, uint32_t *eid_epoch) +{ + if (eid_epoch) + { + *eid_epoch = this->eid_epoch; + } + return this->last_eid; +} + +METHOD(tcg_swid_attr_tag_inv_t, get_tag_count, uint32_t, + private_tcg_swid_attr_tag_inv_t *this) +{ + return this->tag_count; +} + +METHOD(tcg_swid_attr_tag_inv_t, get_inventory, swid_inventory_t*, + private_tcg_swid_attr_tag_inv_t *this) +{ + return this->inventory; +} + +METHOD(tcg_swid_attr_tag_inv_t, clear_inventory, void, + private_tcg_swid_attr_tag_inv_t *this) +{ + this->inventory->destroy(this->inventory); + this->inventory = swid_inventory_create(TRUE); +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_swid_attr_tag_inv_create(uint32_t request_id, + uint32_t eid_epoch, uint32_t eid) +{ + private_tcg_swid_attr_tag_inv_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .add = _add, + .get_request_id = _get_request_id, + .get_last_eid = _get_last_eid, + .get_tag_count = _get_tag_count, + .get_inventory = _get_inventory, + .clear_inventory = _clear_inventory, + }, + .type = { PEN_TCG, TCG_SWID_TAG_INVENTORY }, + .request_id = request_id, + .eid_epoch = eid_epoch, + .last_eid = eid, + .inventory = swid_inventory_create(TRUE), + .ref = 1, + ); + + return &this->public.pa_tnc_attribute; +} + +/** + * Described in header. + */ +pa_tnc_attr_t *tcg_swid_attr_tag_inv_create_from_data(size_t length, + chunk_t data) +{ + private_tcg_swid_attr_tag_inv_t *this; + + INIT(this, + .public = { + .pa_tnc_attribute = { + .get_type = _get_type, + .get_value = _get_value, + .get_noskip_flag = _get_noskip_flag, + .set_noskip_flag = _set_noskip_flag, + .build = _build, + .process = _process, + .add_segment = _add_segment, + .get_ref = _get_ref, + .destroy = _destroy, + }, + .add = _add, + .get_request_id = _get_request_id, + .get_last_eid = _get_last_eid, + .get_tag_count = _get_tag_count, + .get_inventory = _get_inventory, + .clear_inventory = _clear_inventory, + }, + .type = { PEN_TCG, TCG_SWID_TAG_INVENTORY }, + .length = length, + .segment = chunk_clone(data), + .inventory = swid_inventory_create(TRUE), + .ref = 1, + ); + + /* received either complete attribute value or first segment */ + this->value = this->segment; + + return &this->public.pa_tnc_attribute; +} diff --git a/src/libimcv/tcg/swid/tcg_swid_attr_tag_inv.h b/src/libimcv/tcg/swid/tcg_swid_attr_tag_inv.h new file mode 100644 index 000000000..43ebd9e2a --- /dev/null +++ b/src/libimcv/tcg/swid/tcg_swid_attr_tag_inv.h @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2013-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_swid_attr_tag_inv tcg_swid_attr_tag_inv + * @{ @ingroup tcg_attr + */ + +#ifndef TCG_SWID_ATTR_TAG_INV_H_ +#define TCG_SWID_ATTR_TAG_INV_H_ + +typedef struct tcg_swid_attr_tag_inv_t tcg_swid_attr_tag_inv_t; + +#include "tcg/tcg_attr.h" +#include "swid/swid_tag.h" +#include "swid/swid_inventory.h" + +#include <pa_tnc/pa_tnc_attr.h> + +#define TCG_SWID_TAG_INV_MIN_SIZE 16 + +/** + * Class implementing the TCG SWID Tag Inventory attribute + * + */ +struct tcg_swid_attr_tag_inv_t { + + /** + * Public PA-TNC attribute interface + */ + pa_tnc_attr_t pa_tnc_attribute; + + /** + * Add a Tag ID to the attribute + * + * @param tag SWID Tag to be added + */ + void (*add)(tcg_swid_attr_tag_inv_t *this, swid_tag_t *tag); + /** + * Get Request ID + * + * @return Request ID + */ + uint32_t (*get_request_id)(tcg_swid_attr_tag_inv_t *this); + + /** + * Get Last Event ID + * + * @param eid_epoch Event ID Epoch + * @return Last Event ID + */ + uint32_t (*get_last_eid)(tcg_swid_attr_tag_inv_t *this, + uint32_t *eid_epoch); + + /** + * Get count of remaining SWID tags + * + * @return SWID Tag count + */ + uint32_t (*get_tag_count)(tcg_swid_attr_tag_inv_t *this); + + /** + * Get Inventory of SWID tags + * + * @result SWID Tag Inventory + */ + swid_inventory_t* (*get_inventory)(tcg_swid_attr_tag_inv_t *this); + + /** + * Remove all SWID Tags from the Inventory + */ + void (*clear_inventory)(tcg_swid_attr_tag_inv_t *this); + +}; + +/** + * Creates an tcg_swid_attr_tag_inv_t object + * + * @param request_id Copy of the Request ID + * @param eid_epoch Event ID Epoch + * @param eid Last Event ID + */ +pa_tnc_attr_t* tcg_swid_attr_tag_inv_create(uint32_t request_id, + uint32_t eid_epoch, + uint32_t eid); + +/** + * Creates an tcg_swid_attr_tag_inv_t object from received data + * + * @param length Total length of attribute value + * @param value Unparsed attribute value (might be a segment) + */ +pa_tnc_attr_t* tcg_swid_attr_tag_inv_create_from_data(size_t length, + chunk_t value); + +#endif /** TCG_SWID_ATTR_TAG_INV_H_ @}*/ diff --git a/src/libimcv/tcg/tcg_attr.c b/src/libimcv/tcg/tcg_attr.c new file mode 100644 index 000000000..79492913b --- /dev/null +++ b/src/libimcv/tcg/tcg_attr.c @@ -0,0 +1,270 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "tcg_attr.h" +#include "tcg/pts/tcg_pts_attr_proto_caps.h" +#include "tcg/pts/tcg_pts_attr_dh_nonce_params_req.h" +#include "tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h" +#include "tcg/pts/tcg_pts_attr_dh_nonce_finish.h" +#include "tcg/pts/tcg_pts_attr_meas_algo.h" +#include "tcg/pts/tcg_pts_attr_get_tpm_version_info.h" +#include "tcg/pts/tcg_pts_attr_tpm_version_info.h" +#include "tcg/pts/tcg_pts_attr_get_aik.h" +#include "tcg/pts/tcg_pts_attr_aik.h" +#include "tcg/pts/tcg_pts_attr_req_func_comp_evid.h" +#include "tcg/pts/tcg_pts_attr_gen_attest_evid.h" +#include "tcg/pts/tcg_pts_attr_simple_comp_evid.h" +#include "tcg/pts/tcg_pts_attr_simple_evid_final.h" +#include "tcg/pts/tcg_pts_attr_req_file_meas.h" +#include "tcg/pts/tcg_pts_attr_file_meas.h" +#include "tcg/pts/tcg_pts_attr_req_file_meta.h" +#include "tcg/pts/tcg_pts_attr_unix_file_meta.h" +#include "tcg/swid/tcg_swid_attr_req.h" +#include "tcg/swid/tcg_swid_attr_tag_id_inv.h" +#include "tcg/swid/tcg_swid_attr_tag_inv.h" +#include "tcg/seg/tcg_seg_attr_max_size.h" +#include "tcg/seg/tcg_seg_attr_seg_env.h" +#include "tcg/seg/tcg_seg_attr_next_seg.h" + +ENUM_BEGIN(tcg_attr_names, TCG_SCAP_REFERENCES, + TCG_SCAP_SUMMARY_RESULTS, + "SCAP References", + "SCAP Capabilities and Inventory", + "SCAP Content", + "SCAP Assessment", + "SCAP Results", + "SCAP Summary Results"); +ENUM_NEXT(tcg_attr_names, TCG_SWID_REQUEST, + TCG_SWID_TAG_EVENTS, + TCG_SCAP_SUMMARY_RESULTS, + "SWID Request", + "SWID Tag Identifier Inventory", + "SWID Tag Identifier Events", + "SWID Tag Inventory", + "SWID Tag Events"); +ENUM_NEXT(tcg_attr_names, TCG_SEG_MAX_ATTR_SIZE_REQ, + TCG_SEG_CANCEL_SEG_EXCH, + TCG_SWID_TAG_EVENTS, + "Max Attribute Size Request", + "Max Attribute Size Response", + "Attribute Segment Envelope", + "Next Segment Request", + "Cancel Segment Exchange"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_FUNC_COMP_EVID, + TCG_PTS_REQ_FUNC_COMP_EVID, + TCG_SEG_CANCEL_SEG_EXCH, + "Request Functional Component Evidence"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_GEN_ATTEST_EVID, + TCG_PTS_GEN_ATTEST_EVID, + TCG_PTS_REQ_FUNC_COMP_EVID, + "Generate Attestation Evidence"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_SIMPLE_COMP_EVID, + TCG_PTS_SIMPLE_COMP_EVID, + TCG_PTS_GEN_ATTEST_EVID, + "Simple Component Evidence"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_SIMPLE_EVID_FINAL, + TCG_PTS_SIMPLE_EVID_FINAL, + TCG_PTS_SIMPLE_COMP_EVID, + "Simple Evidence Final"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_VERIFICATION_RESULT, + TCG_PTS_VERIFICATION_RESULT, + TCG_PTS_SIMPLE_EVID_FINAL, + "Verification Result"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_INTEG_REPORT, + TCG_PTS_INTEG_REPORT, + TCG_PTS_VERIFICATION_RESULT, + "Integrity Report"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_FILE_META, + TCG_PTS_REQ_FILE_META, + TCG_PTS_INTEG_REPORT, + "Request File Metadata"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_WIN_FILE_META, + TCG_PTS_WIN_FILE_META, + TCG_PTS_REQ_FILE_META, + "Windows-Style File Metadata"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_UNIX_FILE_META, + TCG_PTS_UNIX_FILE_META, + TCG_PTS_WIN_FILE_META, + "Unix-Style File Metadata"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_REGISTRY_VALUE, + TCG_PTS_REQ_REGISTRY_VALUE, + TCG_PTS_UNIX_FILE_META, + "Request Registry Value"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REGISTRY_VALUE, + TCG_PTS_REGISTRY_VALUE, + TCG_PTS_REQ_REGISTRY_VALUE, + "Registry Value"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_FILE_MEAS, + TCG_PTS_REQ_FILE_MEAS, + TCG_PTS_REGISTRY_VALUE, + "Request File Measurement"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_FILE_MEAS, + TCG_PTS_FILE_MEAS, + TCG_PTS_REQ_FILE_MEAS, + "File Measurement"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_INTEG_MEAS_LOG, + TCG_PTS_REQ_INTEG_MEAS_LOG, + TCG_PTS_FILE_MEAS, + "Request Integrity Measurement Log"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_INTEG_MEAS_LOG, + TCG_PTS_INTEG_MEAS_LOG, + TCG_PTS_REQ_INTEG_MEAS_LOG, + "Integrity Measurement Log"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_PROTO_CAPS, + TCG_PTS_REQ_PROTO_CAPS, + TCG_PTS_INTEG_MEAS_LOG, + "Request PTS Protocol Capabilities"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_PROTO_CAPS, + TCG_PTS_PROTO_CAPS, + TCG_PTS_REQ_PROTO_CAPS, + "PTS Protocol Capabilities"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_DH_NONCE_PARAMS_REQ, + TCG_PTS_DH_NONCE_PARAMS_REQ, + TCG_PTS_PROTO_CAPS, + "DH Nonce Parameters Request"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_DH_NONCE_PARAMS_RESP, + TCG_PTS_DH_NONCE_PARAMS_RESP, + TCG_PTS_DH_NONCE_PARAMS_REQ, + "DH Nonce Parameters Response"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_DH_NONCE_FINISH, + TCG_PTS_DH_NONCE_FINISH, + TCG_PTS_DH_NONCE_PARAMS_RESP, + "DH Nonce Finish"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_MEAS_ALGO, + TCG_PTS_MEAS_ALGO, + TCG_PTS_DH_NONCE_FINISH, + "PTS Measurement Algorithm Request"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_MEAS_ALGO_SELECTION, + TCG_PTS_MEAS_ALGO_SELECTION, + TCG_PTS_MEAS_ALGO, + "PTS Measurement Algorithm"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_GET_TPM_VERSION_INFO, + TCG_PTS_GET_TPM_VERSION_INFO, + TCG_PTS_MEAS_ALGO_SELECTION, + "Get TPM Version Information"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_TPM_VERSION_INFO, + TCG_PTS_TPM_VERSION_INFO, + TCG_PTS_GET_TPM_VERSION_INFO, + "TPM Version Information"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_REQ_TEMPL_REF_MANI_SET_META, + TCG_PTS_REQ_TEMPL_REF_MANI_SET_META, + TCG_PTS_TPM_VERSION_INFO, + "Request Template Reference Manifest Set Metadata"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_TEMPL_REF_MANI_SET_META, + TCG_PTS_TEMPL_REF_MANI_SET_META, + TCG_PTS_REQ_TEMPL_REF_MANI_SET_META, + "Template Reference Manifest Set Metadata"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_UPDATE_TEMPL_REF_MANI, + TCG_PTS_UPDATE_TEMPL_REF_MANI, + TCG_PTS_TEMPL_REF_MANI_SET_META, + "Update Template Reference Manifest"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_GET_AIK, + TCG_PTS_GET_AIK, + TCG_PTS_UPDATE_TEMPL_REF_MANI, + "Get Attestation Identity Key"); +ENUM_NEXT(tcg_attr_names, TCG_PTS_AIK, + TCG_PTS_AIK, + TCG_PTS_GET_AIK, + "Attestation Identity Key"); +ENUM_END(tcg_attr_names, TCG_PTS_AIK); + +/** + * See header + */ +pa_tnc_attr_t* tcg_attr_create_from_data(u_int32_t type, size_t length, chunk_t value) +{ + switch (type) + { + case TCG_SWID_REQUEST: + return tcg_swid_attr_req_create_from_data(length, value); + case TCG_SWID_TAG_ID_INVENTORY: + return tcg_swid_attr_tag_id_inv_create_from_data(length, value); + case TCG_SWID_TAG_INVENTORY: + return tcg_swid_attr_tag_inv_create_from_data(length, value); + case TCG_SEG_MAX_ATTR_SIZE_REQ: + return tcg_seg_attr_max_size_create_from_data(length, value, TRUE); + case TCG_SEG_MAX_ATTR_SIZE_RESP: + return tcg_seg_attr_max_size_create_from_data(length, value, FALSE); + case TCG_SEG_ATTR_SEG_ENV: + return tcg_seg_attr_seg_env_create_from_data(length, value); + case TCG_SEG_NEXT_SEG_REQ: + return tcg_seg_attr_next_seg_create_from_data(length, value); + case TCG_PTS_REQ_PROTO_CAPS: + return tcg_pts_attr_proto_caps_create_from_data(length, value, + TRUE); + case TCG_PTS_PROTO_CAPS: + return tcg_pts_attr_proto_caps_create_from_data(length, value, + FALSE); + case TCG_PTS_DH_NONCE_PARAMS_REQ: + return tcg_pts_attr_dh_nonce_params_req_create_from_data(length, + value); + case TCG_PTS_DH_NONCE_PARAMS_RESP: + return tcg_pts_attr_dh_nonce_params_resp_create_from_data(length, + value); + case TCG_PTS_DH_NONCE_FINISH: + return tcg_pts_attr_dh_nonce_finish_create_from_data(length, value); + case TCG_PTS_MEAS_ALGO: + return tcg_pts_attr_meas_algo_create_from_data(length, value, + FALSE); + case TCG_PTS_MEAS_ALGO_SELECTION: + return tcg_pts_attr_meas_algo_create_from_data(length, value, + TRUE); + case TCG_PTS_GET_TPM_VERSION_INFO: + return tcg_pts_attr_get_tpm_version_info_create_from_data(length, + value); + case TCG_PTS_TPM_VERSION_INFO: + return tcg_pts_attr_tpm_version_info_create_from_data(length, + value); + case TCG_PTS_GET_AIK: + return tcg_pts_attr_get_aik_create_from_data(length, value); + case TCG_PTS_AIK: + return tcg_pts_attr_aik_create_from_data(length, value); + case TCG_PTS_REQ_FUNC_COMP_EVID: + return tcg_pts_attr_req_func_comp_evid_create_from_data(length, + value); + case TCG_PTS_GEN_ATTEST_EVID: + return tcg_pts_attr_gen_attest_evid_create_from_data(length, value); + case TCG_PTS_SIMPLE_COMP_EVID: + return tcg_pts_attr_simple_comp_evid_create_from_data(length, + value); + case TCG_PTS_SIMPLE_EVID_FINAL: + return tcg_pts_attr_simple_evid_final_create_from_data(length, + value); + case TCG_PTS_REQ_FILE_MEAS: + return tcg_pts_attr_req_file_meas_create_from_data(length, value); + case TCG_PTS_FILE_MEAS: + return tcg_pts_attr_file_meas_create_from_data(length, value); + case TCG_PTS_REQ_FILE_META: + return tcg_pts_attr_req_file_meta_create_from_data(length, value); + case TCG_PTS_UNIX_FILE_META: + return tcg_pts_attr_unix_file_meta_create_from_data(length, value); + /* unsupported TCG/SWID attributes */ + case TCG_SWID_TAG_ID_EVENTS: + case TCG_SWID_TAG_EVENTS: + /* unsupported TCG/PTS attributes */ + case TCG_PTS_REQ_TEMPL_REF_MANI_SET_META: + case TCG_PTS_TEMPL_REF_MANI_SET_META: + case TCG_PTS_UPDATE_TEMPL_REF_MANI: + case TCG_PTS_VERIFICATION_RESULT: + case TCG_PTS_INTEG_REPORT: + case TCG_PTS_WIN_FILE_META: + case TCG_PTS_REQ_REGISTRY_VALUE: + case TCG_PTS_REGISTRY_VALUE: + case TCG_PTS_REQ_INTEG_MEAS_LOG: + case TCG_PTS_INTEG_MEAS_LOG: + default: + return NULL; + } +} diff --git a/src/libimcv/tcg/tcg_attr.h b/src/libimcv/tcg/tcg_attr.h new file mode 100644 index 000000000..9523f8e18 --- /dev/null +++ b/src/libimcv/tcg/tcg_attr.h @@ -0,0 +1,105 @@ +/* + * Copyright (C) 2011-2014 Andreas Steffen + * HSR Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup tcg_attr tcg_attr + * @{ @ingroup libimcv + */ + +#ifndef TCG_ATTR_H_ +#define TCG_ATTR_H_ + +#include <pa_tnc/pa_tnc_attr.h> +#include <library.h> + +typedef enum tcg_attr_t tcg_attr_t; + +/** + * TCG PTS IF-M Attributes (section 4 of PTS PROTO: Binding to TNC IF-M) + */ +enum tcg_attr_t { + + /* SCAP Attributes */ + TCG_SCAP_REFERENCES = 0x00000001, + TCG_SCAP_CAPS_AND_INVENTORY = 0x00000002, + TCG_SCAP_CONTENT = 0x00000003, + TCG_SCAP_ASSESSMENT = 0x00000004, + TCG_SCAP_RESULTS = 0x00000005, + TCG_SCAP_SUMMARY_RESULTS = 0x00000006, + + /* SWID Attributes */ + TCG_SWID_REQUEST = 0x00000011, + TCG_SWID_TAG_ID_INVENTORY = 0x00000012, + TCG_SWID_TAG_ID_EVENTS = 0x00000013, + TCG_SWID_TAG_INVENTORY = 0x00000014, + TCG_SWID_TAG_EVENTS = 0x00000015, + + /* IF-M Attribute Segmentation */ + TCG_SEG_MAX_ATTR_SIZE_REQ = 0x00000021, + TCG_SEG_MAX_ATTR_SIZE_RESP = 0x00000022, + TCG_SEG_ATTR_SEG_ENV = 0x00000023, + TCG_SEG_NEXT_SEG_REQ = 0x00000024, + TCG_SEG_CANCEL_SEG_EXCH = 0x00000025, + + /* PTS Protocol Negotiations */ + TCG_PTS_REQ_PROTO_CAPS = 0x01000000, + TCG_PTS_PROTO_CAPS = 0x02000000, + TCG_PTS_DH_NONCE_PARAMS_REQ = 0x03000000, + TCG_PTS_DH_NONCE_PARAMS_RESP = 0x04000000, + TCG_PTS_DH_NONCE_FINISH = 0x05000000, + TCG_PTS_MEAS_ALGO = 0x06000000, + TCG_PTS_MEAS_ALGO_SELECTION = 0x07000000, + TCG_PTS_GET_TPM_VERSION_INFO = 0x08000000, + TCG_PTS_TPM_VERSION_INFO = 0x09000000, + TCG_PTS_REQ_TEMPL_REF_MANI_SET_META = 0x0A000000, + TCG_PTS_TEMPL_REF_MANI_SET_META = 0x0B000000, + TCG_PTS_UPDATE_TEMPL_REF_MANI = 0x0C000000, + TCG_PTS_GET_AIK = 0x0D000000, + TCG_PTS_AIK = 0x0E000000, + + /* PTS-based Attestation Evidence */ + TCG_PTS_REQ_FUNC_COMP_EVID = 0x00100000, + TCG_PTS_GEN_ATTEST_EVID = 0x00200000, + TCG_PTS_SIMPLE_COMP_EVID = 0x00300000, + TCG_PTS_SIMPLE_EVID_FINAL = 0x00400000, + TCG_PTS_VERIFICATION_RESULT = 0x00500000, + TCG_PTS_INTEG_REPORT = 0x00600000, + TCG_PTS_REQ_FILE_META = 0x00700000, + TCG_PTS_WIN_FILE_META = 0x00800000, + TCG_PTS_UNIX_FILE_META = 0x00900000, + TCG_PTS_REQ_REGISTRY_VALUE = 0x00A00000, + TCG_PTS_REGISTRY_VALUE = 0x00B00000, + TCG_PTS_REQ_FILE_MEAS = 0x00C00000, + TCG_PTS_FILE_MEAS = 0x00D00000, + TCG_PTS_REQ_INTEG_MEAS_LOG = 0x00E00000, + TCG_PTS_INTEG_MEAS_LOG = 0x00F00000, +}; + +/** + * enum name for tcg_attr_t. + */ +extern enum_name_t *tcg_attr_names; + +/** + * Create a TCG PA-TNC attribute from data + * + * @param type attribute type + * @param length attribute length + * @param value attribute value or segment + */ +pa_tnc_attr_t* tcg_attr_create_from_data(u_int32_t type, size_t length, + chunk_t value); + +#endif /** TCG_ATTR_H_ @}*/ |