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authorYves-Alexis Perez <corsac@debian.org>2013-01-02 14:18:20 +0100
committerYves-Alexis Perez <corsac@debian.org>2013-01-02 14:18:20 +0100
commitc1343b3278cdf99533b7902744d15969f9d6fdc1 (patch)
treed5ed3dc5677a59260ec41cd39bb284d3e94c91b3 /src/libimcv/plugins/imc_scanner
parentb34738ed08c2227300d554b139e2495ca5da97d6 (diff)
downloadvyos-strongswan-c1343b3278cdf99533b7902744d15969f9d6fdc1.tar.gz
vyos-strongswan-c1343b3278cdf99533b7902744d15969f9d6fdc1.zip
Imported Upstream version 5.0.1
Diffstat (limited to 'src/libimcv/plugins/imc_scanner')
-rw-r--r--src/libimcv/plugins/imc_scanner/Makefile.in14
-rw-r--r--src/libimcv/plugins/imc_scanner/imc_scanner.c67
-rw-r--r--src/libimcv/plugins/imc_scanner/imc_scanner_state.c51
3 files changed, 113 insertions, 19 deletions
diff --git a/src/libimcv/plugins/imc_scanner/Makefile.in b/src/libimcv/plugins/imc_scanner/Makefile.in
index 497d317d5..d06798170 100644
--- a/src/libimcv/plugins/imc_scanner/Makefile.in
+++ b/src/libimcv/plugins/imc_scanner/Makefile.in
@@ -49,6 +49,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/config/libtool.m4 \
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
$(ACLOCAL_M4)
mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
CONFIG_CLEAN_FILES =
CONFIG_CLEAN_VPATH_FILES =
am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
@@ -81,7 +82,7 @@ imc_scanner_la_OBJECTS = $(am_imc_scanner_la_OBJECTS)
imc_scanner_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
$(imc_scanner_la_LDFLAGS) $(LDFLAGS) -o $@
-DEFAULT_INCLUDES = -I.@am__isrc@
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
depcomp = $(SHELL) $(top_srcdir)/depcomp
am__depfiles_maybe = depfiles
am__mv = mv -f
@@ -107,6 +108,7 @@ AUTOCONF = @AUTOCONF@
AUTOHEADER = @AUTOHEADER@
AUTOMAKE = @AUTOMAKE@
AWK = @AWK@
+BFDLIB = @BFDLIB@
BTLIB = @BTLIB@
CC = @CC@
CCDEPMODE = @CCDEPMODE@
@@ -201,11 +203,14 @@ build_os = @build_os@
build_vendor = @build_vendor@
builddir = @builddir@
c_plugins = @c_plugins@
+charon_natt_port = @charon_natt_port@
+charon_plugins = @charon_plugins@
+charon_udp_port = @charon_udp_port@
clearsilver_LIBS = @clearsilver_LIBS@
datadir = @datadir@
datarootdir = @datarootdir@
dbusservicedir = @dbusservicedir@
-default_pkcs11 = @default_pkcs11@
+dev_headers = @dev_headers@
docdir = @docdir@
dvidir = @dvidir@
exec_prefix = @exec_prefix@
@@ -222,11 +227,12 @@ imcvdir = @imcvdir@
includedir = @includedir@
infodir = @infodir@
install_sh = @install_sh@
+ipsec_script = @ipsec_script@
+ipsec_script_upper = @ipsec_script_upper@
ipsecdir = @ipsecdir@
ipsecgroup = @ipsecgroup@
ipseclibdir = @ipseclibdir@
ipsecuser = @ipsecuser@
-libcharon_plugins = @libcharon_plugins@
libdir = @libdir@
libexecdir = @libexecdir@
linux_headers = @linux_headers@
@@ -242,6 +248,7 @@ mkdir_p = @mkdir_p@
nm_CFLAGS = @nm_CFLAGS@
nm_LIBS = @nm_LIBS@
nm_ca_dir = @nm_ca_dir@
+nm_plugins = @nm_plugins@
oldincludedir = @oldincludedir@
openac_plugins = @openac_plugins@
p_plugins = @p_plugins@
@@ -251,7 +258,6 @@ pdfdir = @pdfdir@
piddir = @piddir@
pki_plugins = @pki_plugins@
plugindir = @plugindir@
-pluto_plugins = @pluto_plugins@
pool_plugins = @pool_plugins@
prefix = @prefix@
program_transform_name = @program_transform_name@
diff --git a/src/libimcv/plugins/imc_scanner/imc_scanner.c b/src/libimcv/plugins/imc_scanner/imc_scanner.c
index b24c39c3a..34c9359fe 100644
--- a/src/libimcv/plugins/imc_scanner/imc_scanner.c
+++ b/src/libimcv/plugins/imc_scanner/imc_scanner.c
@@ -1,5 +1,6 @@
/*
- * Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
+ * 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
@@ -19,8 +20,8 @@
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_pa_tnc_error.h>
#include <ietf/ietf_attr_port_filter.h>
+#include <ietf/ietf_attr_assess_result.h>
-#include <tncif_names.h>
#include <tncif_pa_subtypes.h>
#include <pen/pen.h>
@@ -37,7 +38,7 @@ static const char imc_name[] = "Scanner";
#define IMC_SUBTYPE PA_SUBTYPE_ITA_SCANNER
static imc_agent_t *imc_scanner;
-
+
/**
* see section 3.8.1 of TCG TNC IF-IMC Specification 1.3
*/
@@ -84,6 +85,15 @@ TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
case TNC_CONNECTION_STATE_CREATE:
state = imc_scanner_state_create(connection_id);
return imc_scanner->create_state(imc_scanner, state);
+ case TNC_CONNECTION_STATE_HANDSHAKE:
+ if (imc_scanner->change_state(imc_scanner, 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_scanner->delete_state(imc_scanner, connection_id);
default:
@@ -123,7 +133,7 @@ static bool do_netstat(ietf_attr_port_filter_t *attr)
enumerator_t *enumerator;
bool allowed, found = FALSE;
- DBG2(DBG_IMC, "%.*s", strlen(buf)-1, buf);
+ DBG2(DBG_IMC, "%.*s", (int)(strlen(buf)-1), buf);
if (n++ < 2)
{
@@ -199,7 +209,7 @@ static bool do_netstat(ietf_attr_port_filter_t *attr)
}
}
enumerator->destroy(enumerator);
-
+
/* Skip the duplicate port entry */
if (found)
{
@@ -221,7 +231,7 @@ end:
static TNC_Result send_message(TNC_ConnectionID connection_id)
{
- pa_tnc_msg_t *msg;
+ linked_list_t *attr_list;
pa_tnc_attr_t *attr;
ietf_attr_port_filter_t *attr_port_filter;
TNC_Result result;
@@ -234,12 +244,11 @@ static TNC_Result send_message(TNC_ConnectionID connection_id)
attr->destroy(attr);
return TNC_RESULT_FATAL;
}
- msg = pa_tnc_msg_create();
- msg->add_attribute(msg, attr);
- msg->build(msg);
+ attr_list = linked_list_create();
+ attr_list->insert_last(attr_list, attr);
result = imc_scanner->send_message(imc_scanner, connection_id, FALSE, 0,
- TNC_IMVID_ANY, msg->get_encoding(msg));
- msg->destroy(msg);
+ TNC_IMVID_ANY, attr_list);
+ attr_list->destroy(attr_list);
return result;
}
@@ -268,8 +277,12 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
TNC_UInt32 dst_imc_id)
{
pa_tnc_msg_t *pa_tnc_msg;
+ pa_tnc_attr_t *attr;
+ pen_type_t attr_type;
imc_state_t *state;
+ enumerator_t *enumerator;
TNC_Result result;
+ TNC_UInt32 target_imc_id;
bool fatal_error;
if (!imc_scanner)
@@ -284,7 +297,7 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
return TNC_RESULT_FATAL;
}
- /* parse received PA-TNC message and automatically handle any errors */
+ /* parse received PA-TNC message and automatically handle any errors */
result = imc_scanner->receive_message(imc_scanner, state, msg, msg_vid,
msg_subtype, src_imv_id, dst_imc_id, &pa_tnc_msg);
@@ -293,17 +306,43 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
{
return result;
}
+ target_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? imc_id : dst_imc_id;
/* preprocess any IETF standard error attributes */
fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
+
+ /* analyze PA-TNC attributes */
+ enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
+ while (enumerator->enumerate(enumerator, &attr))
+ {
+ attr_type = attr->get_type(attr);
+
+ if (attr_type.vendor_id == PEN_IETF &&
+ attr_type.type == IETF_ATTR_ASSESSMENT_RESULT)
+ {
+ ietf_attr_assess_result_t *ietf_attr;
+
+ ietf_attr = (ietf_attr_assess_result_t*)attr;
+ state->set_result(state, target_imc_id,
+ ietf_attr->get_result(ietf_attr));
+ }
+ }
+ enumerator->destroy(enumerator);
pa_tnc_msg->destroy(pa_tnc_msg);
- /* if no error occurred then always return the same response */
- return fatal_error ? TNC_RESULT_FATAL : send_message(connection_id);
+ if (fatal_error)
+ {
+ return TNC_RESULT_FATAL;
+ }
+
+ /* if no assessment result is known then repeat the measurement */
+ return state->get_result(state, target_imc_id, NULL) ?
+ TNC_RESULT_SUCCESS : send_message(connection_id);
}
/**
* 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,
diff --git a/src/libimcv/plugins/imc_scanner/imc_scanner_state.c b/src/libimcv/plugins/imc_scanner/imc_scanner_state.c
index 563105548..991b24a73 100644
--- a/src/libimcv/plugins/imc_scanner/imc_scanner_state.c
+++ b/src/libimcv/plugins/imc_scanner/imc_scanner_state.c
@@ -1,5 +1,6 @@
/*
- * Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
+ * 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
@@ -14,6 +15,8 @@
#include "imc_scanner_state.h"
+#include <tncif_names.h>
+
#include <debug.h>
typedef struct private_imc_scanner_state_t private_imc_scanner_state_t;
@@ -39,6 +42,11 @@ struct private_imc_scanner_state_t {
TNC_ConnectionState state;
/**
+ * Assessment/Evaluation Result
+ */
+ TNC_IMV_Evaluation_Result result;
+
+ /**
* Does the TNCCS connection support long message types?
*/
bool has_long;
@@ -48,6 +56,10 @@ struct private_imc_scanner_state_t {
*/
bool has_excl;
+ /**
+ * Maximum PA-TNC message size for this TNCCS connection
+ */
+ u_int32_t max_msg_len;
};
METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
@@ -75,12 +87,44 @@ METHOD(imc_state_t, set_flags, void,
this->has_excl = has_excl;
}
+METHOD(imc_state_t, set_max_msg_len, void,
+ private_imc_scanner_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_scanner_state_t *this)
+{
+ return this->max_msg_len;
+}
+
METHOD(imc_state_t, change_state, void,
private_imc_scanner_state_t *this, TNC_ConnectionState new_state)
{
this->state = new_state;
}
+METHOD(imc_state_t, set_result, void,
+ private_imc_scanner_state_t *this, TNC_IMCID id,
+ TNC_IMV_Evaluation_Result result)
+{
+ DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
+ id, TNC_IMV_Evaluation_Result_names, result);
+ this->result = result;
+}
+
+METHOD(imc_state_t, get_result, bool,
+ private_imc_scanner_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_scanner_state_t *this)
{
@@ -101,11 +145,16 @@ imc_state_t *imc_scanner_state_create(TNC_ConnectionID 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,
.change_state = _change_state,
+ .set_result = _set_result,
+ .get_result = _get_result,
.destroy = _destroy,
},
},
.state = TNC_CONNECTION_STATE_CREATE,
+ .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
.connection_id = connection_id,
);