diff options
author | root <root@build-vm.(none)> | 2010-06-14 15:51:25 -0700 |
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committer | root <root@build-vm.(none)> | 2010-06-14 15:51:25 -0700 |
commit | c4414d9a8b31bedfb7471cd2365aaf5ea5cf55d5 (patch) | |
tree | 86ee5befd8195f56dcd91f9fd4e06368bf507a11 /extensions | |
download | conntrack-tools-c4414d9a8b31bedfb7471cd2365aaf5ea5cf55d5.tar.gz conntrack-tools-c4414d9a8b31bedfb7471cd2365aaf5ea5cf55d5.zip |
debian conntrack 0.9.14-2
Diffstat (limited to 'extensions')
-rw-r--r-- | extensions/Makefile.am | 17 | ||||
-rw-r--r-- | extensions/Makefile.in | 562 | ||||
-rw-r--r-- | extensions/libct_proto_dccp.c | 246 | ||||
-rw-r--r-- | extensions/libct_proto_gre.c | 192 | ||||
-rw-r--r-- | extensions/libct_proto_icmp.c | 122 | ||||
-rw-r--r-- | extensions/libct_proto_icmpv6.c | 124 | ||||
-rw-r--r-- | extensions/libct_proto_sctp.c | 246 | ||||
-rw-r--r-- | extensions/libct_proto_tcp.c | 234 | ||||
-rw-r--r-- | extensions/libct_proto_udp.c | 192 | ||||
-rw-r--r-- | extensions/libct_proto_udplite.c | 197 | ||||
-rw-r--r-- | extensions/libct_proto_unknown.c | 34 |
11 files changed, 2166 insertions, 0 deletions
diff --git a/extensions/Makefile.am b/extensions/Makefile.am new file mode 100644 index 0000000..c36c3a1 --- /dev/null +++ b/extensions/Makefile.am @@ -0,0 +1,17 @@ +include $(top_srcdir)/Make_global.am + +noinst_LTLIBRARIES = libct_proto_tcp.la libct_proto_udp.la \ + libct_proto_icmp.la libct_proto_icmpv6.la \ + libct_proto_unknown.la libct_proto_udplite.la \ + libct_proto_sctp.la libct_proto_dccp.la \ + libct_proto_gre.la + +libct_proto_tcp_la_SOURCES = libct_proto_tcp.c +libct_proto_udp_la_SOURCES = libct_proto_udp.c +libct_proto_udplite_la_SOURCES = libct_proto_udplite.c +libct_proto_icmp_la_SOURCES = libct_proto_icmp.c +libct_proto_icmpv6_la_SOURCES = libct_proto_icmpv6.c +libct_proto_unknown_la_SOURCES = libct_proto_unknown.c +libct_proto_sctp_la_SOURCES = libct_proto_sctp.c +libct_proto_dccp_la_SOURCES = libct_proto_dccp.c +libct_proto_gre_la_SOURCES = libct_proto_gre.c diff --git a/extensions/Makefile.in b/extensions/Makefile.in new file mode 100644 index 0000000..ea3b62f --- /dev/null +++ b/extensions/Makefile.in @@ -0,0 +1,562 @@ +# Makefile.in generated by automake 1.11 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 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@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +target_triplet = @target@ +DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \ + $(top_srcdir)/Make_global.am +subdir = extensions +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/libtool.m4 \ + $(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \ + $(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \ + $(top_srcdir)/configure.in +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_CLEAN_FILES = +CONFIG_CLEAN_VPATH_FILES = +LTLIBRARIES = $(noinst_LTLIBRARIES) +libct_proto_dccp_la_LIBADD = +am_libct_proto_dccp_la_OBJECTS = libct_proto_dccp.lo +libct_proto_dccp_la_OBJECTS = $(am_libct_proto_dccp_la_OBJECTS) +libct_proto_gre_la_LIBADD = +am_libct_proto_gre_la_OBJECTS = libct_proto_gre.lo +libct_proto_gre_la_OBJECTS = $(am_libct_proto_gre_la_OBJECTS) +libct_proto_icmp_la_LIBADD = +am_libct_proto_icmp_la_OBJECTS = libct_proto_icmp.lo +libct_proto_icmp_la_OBJECTS = $(am_libct_proto_icmp_la_OBJECTS) +libct_proto_icmpv6_la_LIBADD = +am_libct_proto_icmpv6_la_OBJECTS = libct_proto_icmpv6.lo +libct_proto_icmpv6_la_OBJECTS = $(am_libct_proto_icmpv6_la_OBJECTS) +libct_proto_sctp_la_LIBADD = +am_libct_proto_sctp_la_OBJECTS = libct_proto_sctp.lo +libct_proto_sctp_la_OBJECTS = $(am_libct_proto_sctp_la_OBJECTS) +libct_proto_tcp_la_LIBADD = +am_libct_proto_tcp_la_OBJECTS = libct_proto_tcp.lo +libct_proto_tcp_la_OBJECTS = $(am_libct_proto_tcp_la_OBJECTS) +libct_proto_udp_la_LIBADD = +am_libct_proto_udp_la_OBJECTS = libct_proto_udp.lo +libct_proto_udp_la_OBJECTS = $(am_libct_proto_udp_la_OBJECTS) +libct_proto_udplite_la_LIBADD = +am_libct_proto_udplite_la_OBJECTS = libct_proto_udplite.lo +libct_proto_udplite_la_OBJECTS = $(am_libct_proto_udplite_la_OBJECTS) +libct_proto_unknown_la_LIBADD = +am_libct_proto_unknown_la_OBJECTS = libct_proto_unknown.lo +libct_proto_unknown_la_OBJECTS = $(am_libct_proto_unknown_la_OBJECTS) +DEFAULT_INCLUDES = -I.@am__isrc@ +depcomp = $(SHELL) $(top_srcdir)/depcomp +am__depfiles_maybe = depfiles +am__mv = mv -f +COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ + $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ + --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \ + $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +CCLD = $(CC) +LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ + --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \ + $(LDFLAGS) -o $@ +SOURCES = $(libct_proto_dccp_la_SOURCES) $(libct_proto_gre_la_SOURCES) \ + $(libct_proto_icmp_la_SOURCES) \ + $(libct_proto_icmpv6_la_SOURCES) \ + $(libct_proto_sctp_la_SOURCES) $(libct_proto_tcp_la_SOURCES) \ + $(libct_proto_udp_la_SOURCES) \ + $(libct_proto_udplite_la_SOURCES) \ + $(libct_proto_unknown_la_SOURCES) +DIST_SOURCES = $(libct_proto_dccp_la_SOURCES) \ + $(libct_proto_gre_la_SOURCES) $(libct_proto_icmp_la_SOURCES) \ + $(libct_proto_icmpv6_la_SOURCES) \ + $(libct_proto_sctp_la_SOURCES) $(libct_proto_tcp_la_SOURCES) \ + $(libct_proto_udp_la_SOURCES) \ + $(libct_proto_udplite_la_SOURCES) \ + $(libct_proto_unknown_la_SOURCES) +ETAGS = etags +CTAGS = ctags +DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) +ACLOCAL = @ACLOCAL@ +AMTAR = @AMTAR@ +AR = @AR@ +AUTOCONF = @AUTOCONF@ +AUTOHEADER = @AUTOHEADER@ +AUTOMAKE = @AUTOMAKE@ +AWK = @AWK@ +CC = @CC@ +CCDEPMODE = @CCDEPMODE@ +CFLAGS = @CFLAGS@ +CPP = @CPP@ +CPPFLAGS = @CPPFLAGS@ +CYGPATH_W = @CYGPATH_W@ +DEFS = @DEFS@ +DEPDIR = @DEPDIR@ +DSYMUTIL = @DSYMUTIL@ +DUMPBIN = @DUMPBIN@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +EXEEXT = @EXEEXT@ +FGREP = @FGREP@ +GREP = @GREP@ +HAVE_PKG_CONFIG = @HAVE_PKG_CONFIG@ +INSTALL = @INSTALL@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +LD = @LD@ +LDFLAGS = @LDFLAGS@ +LEX = @LEX@ +LEXLIB = @LEXLIB@ +LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@ +LIBNETFILTER_CONNTRACK_CFLAGS = @LIBNETFILTER_CONNTRACK_CFLAGS@ +LIBNETFILTER_CONNTRACK_LIBS = @LIBNETFILTER_CONNTRACK_LIBS@ +LIBNFNETLINK_CFLAGS = @LIBNFNETLINK_CFLAGS@ +LIBNFNETLINK_LIBS = @LIBNFNETLINK_LIBS@ +LIBOBJS = @LIBOBJS@ +LIBS = @LIBS@ +LIBTOOL = @LIBTOOL@ +LIPO = @LIPO@ +LN_S = @LN_S@ +LTLIBOBJS = @LTLIBOBJS@ +MAKEINFO = @MAKEINFO@ +MKDIR_P = @MKDIR_P@ +NM = @NM@ +NMEDIT = @NMEDIT@ +OBJDUMP = @OBJDUMP@ +OBJEXT = @OBJEXT@ +OTOOL = @OTOOL@ +OTOOL64 = @OTOOL64@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_TARNAME = @PACKAGE_TARNAME@ +PACKAGE_URL = @PACKAGE_URL@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PATH_SEPARATOR = @PATH_SEPARATOR@ +PKG_CONFIG = @PKG_CONFIG@ +RANLIB = @RANLIB@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +STRIP = @STRIP@ +VERSION = @VERSION@ +XLEX = @XLEX@ +XYACC = @XYACC@ +YACC = @YACC@ +YFLAGS = @YFLAGS@ +abs_builddir = @abs_builddir@ +abs_srcdir = @abs_srcdir@ +abs_top_builddir = @abs_top_builddir@ +abs_top_srcdir = @abs_top_srcdir@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_DUMPBIN = @ac_ct_DUMPBIN@ +am__include = @am__include@ +am__leading_dot = @am__leading_dot@ +am__quote = @am__quote@ +am__tar = @am__tar@ +am__untar = @am__untar@ +bindir = @bindir@ +build = @build@ +build_alias = @build_alias@ +build_cpu = @build_cpu@ +build_os = @build_os@ +build_vendor = @build_vendor@ +builddir = @builddir@ +datadir = @datadir@ +datarootdir = @datarootdir@ +docdir = @docdir@ +dvidir = @dvidir@ +exec_prefix = @exec_prefix@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +htmldir = @htmldir@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localedir = @localedir@ +localstatedir = @localstatedir@ +lt_ECHO = @lt_ECHO@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +psdir = @psdir@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +srcdir = @srcdir@ +sysconfdir = @sysconfdir@ +target = @target@ +target_alias = @target_alias@ +target_cpu = @target_cpu@ +target_os = @target_os@ +target_vendor = @target_vendor@ +top_build_prefix = @top_build_prefix@ +top_builddir = @top_builddir@ +top_srcdir = @top_srcdir@ +AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include +AM_CFLAGS = -std=gnu99 -W -Wall \ + -Wmissing-prototypes -Wwrite-strings -Wcast-qual -Wfloat-equal -Wshadow -Wpointer-arith -Wbad-function-cast -Wsign-compare -Waggregate-return -Wmissing-declarations -Wredundant-decls -Wnested-externs -Winline -Wstrict-prototypes -Wundef \ + -Wno-unused-parameter + +noinst_LTLIBRARIES = libct_proto_tcp.la libct_proto_udp.la \ + libct_proto_icmp.la libct_proto_icmpv6.la \ + libct_proto_unknown.la libct_proto_udplite.la \ + libct_proto_sctp.la libct_proto_dccp.la \ + libct_proto_gre.la + +libct_proto_tcp_la_SOURCES = libct_proto_tcp.c +libct_proto_udp_la_SOURCES = libct_proto_udp.c +libct_proto_udplite_la_SOURCES = libct_proto_udplite.c +libct_proto_icmp_la_SOURCES = libct_proto_icmp.c +libct_proto_icmpv6_la_SOURCES = libct_proto_icmpv6.c +libct_proto_unknown_la_SOURCES = libct_proto_unknown.c +libct_proto_sctp_la_SOURCES = libct_proto_sctp.c +libct_proto_dccp_la_SOURCES = libct_proto_dccp.c +libct_proto_gre_la_SOURCES = libct_proto_gre.c +all: all-am + +.SUFFIXES: +.SUFFIXES: .c .lo .o .obj +$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(top_srcdir)/Make_global.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \ + && { if test -f $@; then exit 0; else break; fi; }; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu extensions/Makefile'; \ + $(am__cd) $(top_srcdir) && \ + $(AUTOMAKE) --gnu extensions/Makefile +.PRECIOUS: Makefile +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + @case '$?' in \ + *config.status*) \ + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \ + *) \ + echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \ + cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \ + esac; + +$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh + +$(top_srcdir)/configure: $(am__configure_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh +$(ACLOCAL_M4): $(am__aclocal_m4_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh +$(am__aclocal_m4_deps): + +clean-noinstLTLIBRARIES: + -test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES) + @list='$(noinst_LTLIBRARIES)'; for p in $$list; do \ + dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \ + test "$$dir" != "$$p" || dir=.; \ + echo "rm -f \"$${dir}/so_locations\""; \ + rm -f "$${dir}/so_locations"; \ + done +libct_proto_dccp.la: $(libct_proto_dccp_la_OBJECTS) $(libct_proto_dccp_la_DEPENDENCIES) + $(LINK) $(libct_proto_dccp_la_OBJECTS) $(libct_proto_dccp_la_LIBADD) $(LIBS) +libct_proto_gre.la: $(libct_proto_gre_la_OBJECTS) $(libct_proto_gre_la_DEPENDENCIES) + $(LINK) $(libct_proto_gre_la_OBJECTS) $(libct_proto_gre_la_LIBADD) $(LIBS) +libct_proto_icmp.la: $(libct_proto_icmp_la_OBJECTS) $(libct_proto_icmp_la_DEPENDENCIES) + $(LINK) $(libct_proto_icmp_la_OBJECTS) $(libct_proto_icmp_la_LIBADD) $(LIBS) +libct_proto_icmpv6.la: 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exit 1; \ + fi; \ + done +check-am: all-am +check: check-am +all-am: Makefile $(LTLIBRARIES) +installdirs: +install: install-am +install-exec: install-exec-am +install-data: install-data-am +uninstall: uninstall-am + +install-am: all-am + @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am + +installcheck: installcheck-am +install-strip: + $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \ + install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \ + `test -z '$(STRIP)' || \ + echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install +mostlyclean-generic: + +clean-generic: + +distclean-generic: + -test -z "$(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: 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CTAGS GTAGS all all-am check check-am clean clean-generic \ + clean-libtool clean-noinstLTLIBRARIES ctags 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-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 uninstall uninstall-am + + +# 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/extensions/libct_proto_dccp.c b/extensions/libct_proto_dccp.c new file mode 100644 index 0000000..586c4cc --- /dev/null +++ b/extensions/libct_proto_dccp.c @@ -0,0 +1,246 @@ +/* + * (C) 2009 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <string.h> +#include <netinet/in.h> /* For htons */ +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> +#include <libnetfilter_conntrack/libnetfilter_conntrack_dccp.h> + +#include "conntrack.h" + +#ifndef IPPROTO_DCCP +#define IPPROTO_DCCP 33 +#endif + +enum { + CT_DCCP_ORIG_SPORT = (1 << 0), + CT_DCCP_ORIG_DPORT = (1 << 1), + CT_DCCP_REPL_SPORT = (1 << 2), + CT_DCCP_REPL_DPORT = (1 << 3), + CT_DCCP_MASK_SPORT = (1 << 4), + CT_DCCP_MASK_DPORT = (1 << 5), + CT_DCCP_STATE = (1 << 6), + CT_DCCP_EXPTUPLE_SPORT = (1 << 7), + CT_DCCP_EXPTUPLE_DPORT = (1 << 8), + CT_DCCP_ROLE = (1 << 9), +}; + +#define DCCP_OPT_MAX 13 +static struct option opts[DCCP_OPT_MAX] = { + { .name = "orig-port-src", .has_arg = 1, .val = 1 }, + { .name = "orig-port-dst", .has_arg = 1, .val = 2 }, + { .name = "reply-port-src", .has_arg = 1, .val = 3 }, + { .name = "reply-port-dst", .has_arg = 1, .val = 4 }, + { .name = "mask-port-src", .has_arg = 1, .val = 5 }, + { .name = "mask-port-dst", .has_arg = 1, .val = 6 }, + { .name = "state", .has_arg = 1, .val = 7 }, + { .name = "tuple-port-src", .has_arg = 1, .val = 8 }, + { .name = "tuple-port-dst", .has_arg = 1, .val = 9 }, + { .name = "sport", .has_arg = 1, .val = 1 }, /* alias */ + { .name = "dport", .has_arg = 1, .val = 2 }, /* alias */ + { .name = "role", .has_arg = 1, .val = 10 }, + { 0, 0, 0, 0}, +}; + +static const char *dccp_optflags[DCCP_OPT_MAX] = { + [0] = "sport", + [1] = "dport", + [2] = "reply-port-src", + [3] = "reply-port-dst", + [4] = "mask-port-src", + [5] = "mask-port-dst", + [6] = "state", + [7] = "tuple-port-src", + [8] = "tuple-port-dst", + [9] = "role" +}; + +static char dccp_commands_v_options[NUMBER_OF_CMD][DCCP_OPT_MAX] = +/* Well, it's better than "Re: Sevilla vs Betis" */ +{ + /* 1 2 3 4 5 6 7 8 9 10*/ +/*CT_LIST*/ {2,2,2,2,0,0,2,0,0,0}, +/*CT_CREATE*/ {3,3,3,3,0,0,1,0,0,1}, +/*CT_UPDATE*/ {2,2,2,2,0,0,2,0,0,0}, +/*CT_DELETE*/ {2,2,2,2,0,0,2,0,0,0}, +/*CT_GET*/ {3,3,3,3,0,0,2,0,0,0}, +/*CT_FLUSH*/ {0,0,0,0,0,0,0,0,0,0}, +/*CT_EVENT*/ {2,2,2,2,0,0,2,0,0,0}, +/*CT_VERSION*/ {0,0,0,0,0,0,0,0,0,0}, +/*CT_HELP*/ {0,0,0,0,0,0,0,0,0,0}, +/*EXP_LIST*/ {0,0,0,0,0,0,0,0,0,0}, +/*EXP_CREATE*/ {1,1,1,1,1,1,0,1,1,1}, +/*EXP_DELETE*/ {1,1,1,1,0,0,0,0,0,0}, +/*EXP_GET*/ {1,1,1,1,0,0,0,0,0,0}, +/*EXP_FLUSH*/ {0,0,0,0,0,0,0,0,0,0}, +/*EXP_EVENT*/ {0,0,0,0,0,0,0,0,0,0}, +}; + +static const char *dccp_states[DCCP_CONNTRACK_MAX] = { + [DCCP_CONNTRACK_NONE] = "NONE", + [DCCP_CONNTRACK_REQUEST] = "REQUEST", + [DCCP_CONNTRACK_RESPOND] = "RESPOND", + [DCCP_CONNTRACK_PARTOPEN] = "PARTOPEN", + [DCCP_CONNTRACK_OPEN] = "OPEN", + [DCCP_CONNTRACK_CLOSEREQ] = "CLOSEREQ", + [DCCP_CONNTRACK_CLOSING] = "CLOSING", + [DCCP_CONNTRACK_TIMEWAIT] = "TIMEWAIT", + [DCCP_CONNTRACK_IGNORE] = "IGNORE", + [DCCP_CONNTRACK_INVALID] = "INVALID", +}; + +static void help(void) +{ + fprintf(stdout, " --orig-port-src\t\toriginal source port\n"); + fprintf(stdout, " --orig-port-dst\t\toriginal destination port\n"); + fprintf(stdout, " --reply-port-src\t\treply source port\n"); + fprintf(stdout, " --reply-port-dst\t\treply destination port\n"); + fprintf(stdout, " --mask-port-src\t\tmask source port\n"); + fprintf(stdout, " --mask-port-dst\t\tmask destination port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple src port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple dst port\n"); + fprintf(stdout, " --state\t\t\tDCCP state, fe. RESPOND\n"); +} + +static int parse_options(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + int i; + u_int16_t port; + + switch(c) { + case 1: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_DCCP); + *flags |= CT_DCCP_ORIG_SPORT; + break; + case 2: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_DCCP); + *flags |= CT_DCCP_ORIG_DPORT; + break; + case 3: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_DCCP); + *flags |= CT_DCCP_REPL_SPORT; + break; + case 4: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_DCCP); + *flags |= CT_DCCP_REPL_DPORT; + break; + case 5: + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_DCCP); + *flags |= CT_DCCP_MASK_SPORT; + break; + case 6: + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_DCCP); + *flags |= CT_DCCP_MASK_DPORT; + break; + case 7: + for (i=0; i<DCCP_CONNTRACK_MAX; i++) { + if (strcmp(optarg, dccp_states[i]) == 0) { + nfct_set_attr_u8(ct, ATTR_DCCP_STATE, i); + break; + } + } + if (i == DCCP_CONNTRACK_MAX) + exit_error(PARAMETER_PROBLEM, + "Unknown DCCP state `%s'", optarg); + *flags |= CT_DCCP_STATE; + break; + case 8: + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, port); + *flags |= CT_DCCP_EXPTUPLE_SPORT; + break; + case 9: + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, port); + *flags |= CT_DCCP_EXPTUPLE_DPORT; + break; + case 10: + if (strncasecmp(optarg, "client", strlen(optarg)) == 0) { + nfct_set_attr_u8(ct, ATTR_DCCP_ROLE, + DCCP_CONNTRACK_ROLE_CLIENT); + } else if (strncasecmp(optarg, "server", strlen(optarg)) == 0) { + nfct_set_attr_u8(ct, ATTR_DCCP_ROLE, + DCCP_CONNTRACK_ROLE_SERVER); + } else { + exit_error(PARAMETER_PROBLEM, + "Unknown DCCP role `%s'", optarg); + } + *flags |= CT_DCCP_ROLE; + break; + } + return 1; +} + +#define DCCP_VALID_FLAGS_MAX 2 +static unsigned int dccp_valid_flags[DCCP_VALID_FLAGS_MAX] = { + CT_DCCP_ORIG_SPORT | CT_DCCP_ORIG_DPORT, + CT_DCCP_REPL_SPORT | CT_DCCP_REPL_DPORT +}; + +static void +final_check(unsigned int flags, unsigned int cmd, struct nf_conntrack *ct) +{ + int ret, partial; + + ret = generic_opt_check(flags, DCCP_OPT_MAX, + dccp_commands_v_options[cmd], dccp_optflags, + dccp_valid_flags, DCCP_VALID_FLAGS_MAX, + &partial); + if (!ret) { + switch(partial) { + case -1: + case 0: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--sport' and " + "`--dport'"); + break; + case 1: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--reply-port-src' and " + "`--report-port-dst'"); + break; + } + } +} + +static struct ctproto_handler dccp = { + .name = "dccp", + .protonum = IPPROTO_DCCP, + .parse_opts = parse_options, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_dccp(void) +{ + register_proto(&dccp); +} diff --git a/extensions/libct_proto_gre.c b/extensions/libct_proto_gre.c new file mode 100644 index 0000000..0274a37 --- /dev/null +++ b/extensions/libct_proto_gre.c @@ -0,0 +1,192 @@ +/* + * (C) 2009 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <netinet/in.h> /* For htons */ +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +#include "conntrack.h" + +enum { + CT_GRE_ORIG_SKEY = (1 << 0), + CT_GRE_ORIG_DKEY = (1 << 1), + CT_GRE_REPL_SKEY = (1 << 2), + CT_GRE_REPL_DKEY = (1 << 3), + CT_GRE_MASK_SKEY = (1 << 4), + CT_GRE_MASK_DKEY = (1 << 5), + CT_GRE_EXPTUPLE_SKEY = (1 << 6), + CT_GRE_EXPTUPLE_DKEY = (1 << 7) +}; + +#define GRE_OPT_MAX 11 +static struct option opts[GRE_OPT_MAX] = { + { "orig-key-src", .has_arg = 1, .val = '1' }, + { "srckey", .has_arg = 1, .val = '1' }, + { "orig-key-dst", .has_arg = 1, .val = '2' }, + { "dstkey", .has_arg = 1, .val = '2' }, + { "reply-key-src", .has_arg = 1, .val = '3' }, + { "reply-key-dst", .has_arg = 1, .val = '4' }, + { "mask-key-src", .has_arg = 1, .val = '5' }, + { "mask-key-dst", .has_arg = 1, .val = '6' }, + { "tuple-key-src", .has_arg = 1, .val = '7' }, + { "tuple-key-dst", .has_arg = 1, .val = '8' }, + {0, 0, 0, 0} +}; + +static const char *gre_optflags[GRE_OPT_MAX] = { + [0] = "srckey", + [1] = "dstkey", + [2] = "reply-key-src", + [3] = "reply-key-dst", + [4] = "mask-key-src", + [5] = "mask-key-dst", + [6] = "tuple-key-src", + [7] = "tuple-key-dst" +}; + +static void help(void) +{ + fprintf(stdout, " --orig-key-src\t\toriginal source key\n"); + fprintf(stdout, " --orig-key-dst\t\toriginal destination key\n"); + fprintf(stdout, " --reply-key-src\t\treply source key\n"); + fprintf(stdout, " --reply-key-dst\t\treply destination key\n"); + fprintf(stdout, " --mask-key-src\t\tmask source key\n"); + fprintf(stdout, " --mask-key-dst\t\tmask destination key\n"); + fprintf(stdout, " --tuple-key-src\t\texpectation tuple src key\n"); + fprintf(stdout, " --tuple-key-src\t\texpectation tuple dst key\n"); +} + +static char gre_commands_v_options[NUMBER_OF_CMD][GRE_OPT_MAX] = +{ + /* 1 2 3 4 5 6 7 8 */ +/*CT_LIST*/ {2,2,2,2,0,0,0,0}, +/*CT_CREATE*/ {3,3,3,3,0,0,0,0}, +/*CT_UPDATE*/ {2,2,2,2,0,0,0,0}, +/*CT_DELETE*/ {2,2,2,2,0,0,0,0}, +/*CT_GET*/ {3,3,3,3,0,0,0,0}, +/*CT_FLUSH*/ {0,0,0,0,0,0,0,0}, +/*CT_EVENT*/ {2,2,2,2,0,0,0,0}, +/*CT_VERSION*/ {0,0,0,0,0,0,0,0}, +/*CT_HELP*/ {0,0,0,0,0,0,0,0}, +/*EXP_LIST*/ {0,0,0,0,0,0,0,0}, +/*EXP_CREATE*/ {1,1,1,1,1,1,1,1}, +/*EXP_DELETE*/ {1,1,1,1,0,0,0,0}, +/*EXP_GET*/ {1,1,1,1,0,0,0,0}, +/*EXP_FLUSH*/ {0,0,0,0,0,0,0,0}, +/*EXP_EVENT*/ {0,0,0,0,0,0,0,0}, +}; + +static int parse_options(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + switch(c) { + u_int16_t port; + case '1': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_ORIG_SKEY; + break; + case '2': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_ORIG_DKEY; + break; + case '3': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_REPL_SKEY; + break; + case '4': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_REPL_DKEY; + break; + case '5': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_MASK_SKEY; + break; + case '6': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_MASK_DKEY; + break; + case '7': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_EXPTUPLE_SKEY; + break; + case '8': + port = htons(strtoul(optarg, NULL, 0)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, IPPROTO_GRE); + *flags |= CT_GRE_EXPTUPLE_DKEY; + break; + } + return 1; +} + +#define GRE_VALID_FLAGS_MAX 2 +static unsigned int gre_valid_flags[GRE_VALID_FLAGS_MAX] = { + CT_GRE_ORIG_SKEY | CT_GRE_ORIG_DKEY, + CT_GRE_REPL_SKEY | CT_GRE_REPL_DKEY, +}; + +static void final_check(unsigned int flags, + unsigned int cmd, + struct nf_conntrack *ct) +{ + int ret, partial; + + ret = generic_opt_check(flags, GRE_OPT_MAX, + gre_commands_v_options[cmd], gre_optflags, + gre_valid_flags, GRE_VALID_FLAGS_MAX, &partial); + if (!ret) { + switch(partial) { + case -1: + case 0: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--srckey' and " + "`--dstkey'"); + break; + case 1: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--reply-src-key' and " + "`--reply-dst-key'"); + break; + } + } +} + +static struct ctproto_handler gre = { + .name = "gre", + .protonum = IPPROTO_GRE, + .parse_opts = parse_options, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_gre(void) +{ + register_proto(&gre); +} diff --git a/extensions/libct_proto_icmp.c b/extensions/libct_proto_icmp.c new file mode 100644 index 0000000..3a346ed --- /dev/null +++ b/extensions/libct_proto_icmp.c @@ -0,0 +1,122 @@ +/* + * (C) 2005-2007 by Pablo Neira Ayuso <pablo@netfilter.org> + * 2005 by Harald Welte <laforge@netfilter.org> + * + * 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. + * + */ + +#include "conntrack.h" + +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <netinet/in.h> /* For htons */ +#include <netinet/ip_icmp.h> +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +enum { + CT_ICMP_TYPE = (1 << 0), + CT_ICMP_CODE = (1 << 1), + CT_ICMP_ID = (1 << 2), +}; + +static struct option opts[] = { + {"icmp-type", 1, 0, '1'}, + {"icmp-code", 1, 0, '2'}, + {"icmp-id", 1, 0, '3'}, + {0, 0, 0, 0} +}; + +#define ICMP_NUMBER_OF_OPT 4 + +static const char *icmp_optflags[ICMP_NUMBER_OF_OPT] = { +"icmp-type", "icmp-code", "icmp-id" +}; + +static char icmp_commands_v_options[NUMBER_OF_CMD][ICMP_NUMBER_OF_OPT] = +/* Well, it's better than "Re: Maradona vs Pele" */ +{ + /* 1 2 3 */ +/*CT_LIST*/ {2,2,2}, +/*CT_CREATE*/ {1,1,2}, +/*CT_UPDATE*/ {1,1,2}, +/*CT_DELETE*/ {1,1,2}, +/*CT_GET*/ {1,1,2}, +/*CT_FLUSH*/ {0,0,0}, +/*CT_EVENT*/ {2,2,2}, +/*CT_VERSION*/ {0,0,0}, +/*CT_HELP*/ {0,0,0}, +/*EXP_LIST*/ {0,0,0}, +/*EXP_CREATE*/ {0,0,0}, +/*EXP_DELETE*/ {0,0,0}, +/*EXP_GET*/ {0,0,0}, +/*EXP_FLUSH*/ {0,0,0}, +/*EXP_EVENT*/ {0,0,0}, +}; + +static void help(void) +{ + fprintf(stdout, " --icmp-type\t\t\ticmp type\n"); + fprintf(stdout, " --icmp-code\t\t\ticmp code\n"); + fprintf(stdout, " --icmp-id\t\t\ticmp id\n"); +} + +static int parse(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + switch(c) { + u_int8_t tmp; + u_int16_t id; + case '1': + tmp = atoi(optarg); + nfct_set_attr_u8(ct, ATTR_ICMP_TYPE, tmp); + nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_ICMP); + *flags |= CT_ICMP_TYPE; + break; + case '2': + tmp = atoi(optarg); + nfct_set_attr_u8(ct, ATTR_ICMP_CODE, tmp); + nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_ICMP); + *flags |= CT_ICMP_CODE; + break; + case '3': + id = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ICMP_ID, id); + nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_ICMP); + *flags |= CT_ICMP_ID; + break; + } + return 1; +} + +static void final_check(unsigned int flags, + unsigned int cmd, + struct nf_conntrack *ct) +{ + generic_opt_check(flags, + ICMP_NUMBER_OF_OPT, + icmp_commands_v_options[cmd], + icmp_optflags, NULL, 0, NULL); +} + +static struct ctproto_handler icmp = { + .name = "icmp", + .protonum = IPPROTO_ICMP, + .parse_opts = parse, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_icmp(void) +{ + register_proto(&icmp); +} diff --git a/extensions/libct_proto_icmpv6.c b/extensions/libct_proto_icmpv6.c new file mode 100644 index 0000000..070eb7f --- /dev/null +++ b/extensions/libct_proto_icmpv6.c @@ -0,0 +1,124 @@ +/* + * (C) 2008 by Krzysztof Piotr Oledzki <ole@ans.pl> + * + * Based on libct_proto_icmp.c: + * (C) 2005-2007 by Pablo Neira Ayuso <pablo@netfilter.org> + * 2005 by Harald Welte <laforge@netfilter.org> + * + * 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. + * + */ + +#include "conntrack.h" + +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <netinet/in.h> /* For htons */ +#include <netinet/icmp6.h> +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +enum { + CT_ICMP_TYPE = (1 << 0), + CT_ICMP_CODE = (1 << 1), + CT_ICMP_ID = (1 << 2), +}; + +static struct option opts[] = { + { "icmpv6-type", 1, 0, '1' }, + { "icmpv6-code", 1, 0, '2' }, + { "icmpv6-id", 1, 0, '3' }, + { 0, 0, 0, 0 }, +}; + +#define ICMPV6_NUMBER_OF_OPT 4 + +static const char *icmpv6_optflags[ICMPV6_NUMBER_OF_OPT] = { + "icmpv6-type", "icmpv6-code", "icmpv6-id" +}; + +static char icmpv6_commands_v_options[NUMBER_OF_CMD][ICMPV6_NUMBER_OF_OPT] = +/* Well, it's better than "Re: Maradona vs Pele" */ +{ + /* 1 2 3 */ +/*CT_LIST*/ {2,2,2}, +/*CT_CREATE*/ {1,1,2}, +/*CT_UPDATE*/ {1,1,2}, +/*CT_DELETE*/ {1,1,2}, +/*CT_GET*/ {1,1,2}, +/*CT_FLUSH*/ {0,0,0}, +/*CT_EVENT*/ {2,2,2}, +/*CT_VERSION*/ {0,0,0}, +/*CT_HELP*/ {0,0,0}, +/*EXP_LIST*/ {0,0,0}, +/*EXP_CREATE*/ {0,0,0}, +/*EXP_DELETE*/ {0,0,0}, +/*EXP_GET*/ {0,0,0}, +/*EXP_FLUSH*/ {0,0,0}, +/*EXP_EVENT*/ {0,0,0}, +}; + +static void help(void) +{ + fprintf(stdout, " --icmpv6-type\t\t\ticmpv6 type\n"); + fprintf(stdout, " --icmpv6-code\t\t\ticmpv6 code\n"); + fprintf(stdout, " --icmpv6-id\t\t\ticmpv6 id\n"); +} + +static int parse(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + switch(c) { + u_int8_t tmp; + u_int16_t id; + case '1': + tmp = atoi(optarg); + nfct_set_attr_u8(ct, ATTR_ICMP_TYPE, tmp); + nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_ICMPV6); + *flags |= CT_ICMP_TYPE; + break; + case '2': + tmp = atoi(optarg); + nfct_set_attr_u8(ct, ATTR_ICMP_CODE, tmp); + nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_ICMPV6); + *flags |= CT_ICMP_CODE; + break; + case '3': + id = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ICMP_ID, id); + nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_ICMPV6); + *flags |= CT_ICMP_ID; + break; + } + return 1; +} + +static void final_check(unsigned int flags, + unsigned int cmd, + struct nf_conntrack *ct) +{ + generic_opt_check(flags, ICMPV6_NUMBER_OF_OPT, + icmpv6_commands_v_options[cmd], icmpv6_optflags, + NULL, 0, NULL); +} + +static struct ctproto_handler icmpv6 = { + .name = "icmpv6", + .protonum = IPPROTO_ICMPV6, + .parse_opts = parse, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_icmpv6(void) +{ + register_proto(&icmpv6); +} diff --git a/extensions/libct_proto_sctp.c b/extensions/libct_proto_sctp.c new file mode 100644 index 0000000..f4c94df --- /dev/null +++ b/extensions/libct_proto_sctp.c @@ -0,0 +1,246 @@ +/* + * (C) 2009 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <string.h> +#include <netinet/in.h> /* For htons */ +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> +#include <libnetfilter_conntrack/libnetfilter_conntrack_sctp.h> + +#include "conntrack.h" + +#ifndef IPPROTO_SCTP +#define IPPROTO_SCTP 132 +#endif + +enum { + CT_SCTP_ORIG_SPORT = (1 << 0), + CT_SCTP_ORIG_DPORT = (1 << 1), + CT_SCTP_REPL_SPORT = (1 << 2), + CT_SCTP_REPL_DPORT = (1 << 3), + CT_SCTP_MASK_SPORT = (1 << 4), + CT_SCTP_MASK_DPORT = (1 << 5), + CT_SCTP_STATE = (1 << 6), + CT_SCTP_EXPTUPLE_SPORT = (1 << 7), + CT_SCTP_EXPTUPLE_DPORT = (1 << 8), + CT_SCTP_ORIG_VTAG = (1 << 9), + CT_SCTP_REPL_VTAG = (1 << 10), +}; + +#define SCTP_OPT_MAX 14 +static struct option opts[SCTP_OPT_MAX] = { + { .name = "orig-port-src", .has_arg = 1, .val = 1 }, + { .name = "orig-port-dst", .has_arg = 1, .val = 2 }, + { .name = "reply-port-src", .has_arg = 1, .val = 3 }, + { .name = "reply-port-dst", .has_arg = 1, .val = 4 }, + { .name = "mask-port-src", .has_arg = 1, .val = 5 }, + { .name = "mask-port-dst", .has_arg = 1, .val = 6 }, + { .name = "state", .has_arg = 1, .val = 7 }, + { .name = "tuple-port-src", .has_arg = 1, .val = 8 }, + { .name = "tuple-port-dst", .has_arg = 1, .val = 9 }, + { .name = "orig-vtag", .has_arg = 1, .val = 10 }, + { .name = "reply-vtag", .has_arg = 1, .val = 11 }, + { .name = "sport", .has_arg = 1, .val = 1 }, /* alias */ + { .name = "dport", .has_arg = 1, .val = 2 }, /* alias */ + {0, 0, 0, 0} +}; + +static const char *sctp_optflags[SCTP_OPT_MAX] = { + [0] = "sport", + [1] = "dport", + [2] = "reply-port-src", + [3] = "reply-port-dst", + [4] = "mask-port-src", + [5] = "mask-port-dst", + [6] = "state", + [7] = "tuple-port-src", + [8] = "tuple-port-dst", + [9] = "orig-vtag", + [10] = "reply-vtag", +}; + +static char sctp_commands_v_options[NUMBER_OF_CMD][SCTP_OPT_MAX] = +/* Well, it's better than "Re: Sevilla vs Betis" */ +{ + /* 1 2 3 4 5 6 7 8 9 10 11*/ +/*CT_LIST*/ {2,2,2,2,0,0,2,0,0,0,0}, +/*CT_CREATE*/ {3,3,3,3,0,0,1,0,0,1,1}, +/*CT_UPDATE*/ {2,2,2,2,0,0,2,0,0,2,2}, +/*CT_DELETE*/ {2,2,2,2,0,0,2,0,0,0,0}, +/*CT_GET*/ {3,3,3,3,0,0,2,0,0,2,2}, +/*CT_FLUSH*/ {0,0,0,0,0,0,0,0,0,0,0}, +/*CT_EVENT*/ {2,2,2,2,0,0,2,0,0,0,0}, +/*CT_VERSION*/ {0,0,0,0,0,0,0,0,0,0,0}, +/*CT_HELP*/ {0,0,0,0,0,0,0,0,0,0,0}, +/*EXP_LIST*/ {0,0,0,0,0,0,0,0,0,0,0}, +/*EXP_CREATE*/ {1,1,1,1,1,1,0,1,1,1,1}, +/*EXP_DELETE*/ {1,1,1,1,0,0,0,0,0,0,0}, +/*EXP_GET*/ {1,1,1,1,0,0,0,0,0,0,0}, +/*EXP_FLUSH*/ {0,0,0,0,0,0,0,0,0,0,0}, +/*EXP_EVENT*/ {0,0,0,0,0,0,0,0,0,0,0}, +}; + +static const char *sctp_states[SCTP_CONNTRACK_MAX] = { + [SCTP_CONNTRACK_NONE] = "NONE", + [SCTP_CONNTRACK_CLOSED] = "CLOSED", + [SCTP_CONNTRACK_COOKIE_WAIT] = "COOKIE_WAIT", + [SCTP_CONNTRACK_COOKIE_ECHOED] = "COOKIE_ECHOED", + [SCTP_CONNTRACK_ESTABLISHED] = "ESTABLISHED", + [SCTP_CONNTRACK_SHUTDOWN_SENT] = "SHUTDOWN_SENT", + [SCTP_CONNTRACK_SHUTDOWN_RECD] = "SHUTDOWN_RECD", + [SCTP_CONNTRACK_SHUTDOWN_ACK_SENT] = "SHUTDOWN_ACK_SENT", +}; + +static void help(void) +{ + fprintf(stdout, " --orig-port-src\t\toriginal source port\n"); + fprintf(stdout, " --orig-port-dst\t\toriginal destination port\n"); + fprintf(stdout, " --reply-port-src\t\treply source port\n"); + fprintf(stdout, " --reply-port-dst\t\treply destination port\n"); + fprintf(stdout, " --mask-port-src\t\tmask source port\n"); + fprintf(stdout, " --mask-port-dst\t\tmask destination port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple src port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple dst port\n"); + fprintf(stdout, " --state\t\t\tSCTP state, fe. ESTABLISHED\n"); + fprintf(stdout, " --orig-vtag\t\toriginal verification tag\n"); + fprintf(stdout, " --reply-vtag\t\treply verification tag\n"); +} + +static int +parse_options(char c, struct nf_conntrack *ct, + struct nf_conntrack *exptuple, struct nf_conntrack *mask, + unsigned int *flags) +{ + int i; + u_int16_t port; + u_int32_t vtag; + + switch(c) { + case 1: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_SCTP); + *flags |= CT_SCTP_ORIG_SPORT; + break; + case 2: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_SCTP); + *flags |= CT_SCTP_ORIG_DPORT; + break; + case 3: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_SCTP); + *flags |= CT_SCTP_REPL_SPORT; + break; + case 4: + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_SCTP); + *flags |= CT_SCTP_REPL_DPORT; + break; + case 5: + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_SCTP); + *flags |= CT_SCTP_MASK_SPORT; + break; + case 6: + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_SCTP); + *flags |= CT_SCTP_MASK_DPORT; + break; + case 7: + for (i=0; i<SCTP_CONNTRACK_MAX; i++) { + if (strcmp(optarg, sctp_states[i]) == 0) { + nfct_set_attr_u8(ct, ATTR_SCTP_STATE, i); + break; + } + } + if (i == SCTP_CONNTRACK_MAX) + exit_error(PARAMETER_PROBLEM, + "unknown SCTP state `%s'", optarg); + *flags |= CT_SCTP_STATE; + break; + case 8: + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, port); + *flags |= CT_SCTP_EXPTUPLE_SPORT; + break; + case 9: + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, port); + *flags |= CT_SCTP_EXPTUPLE_DPORT; + break; + case 10: + vtag = htonl(atoi(optarg)); + nfct_set_attr_u32(ct, ATTR_SCTP_VTAG_ORIG, vtag); + *flags |= CT_SCTP_ORIG_VTAG; + break; + case 11: + vtag = htonl(atoi(optarg)); + nfct_set_attr_u32(ct, ATTR_SCTP_VTAG_REPL, vtag); + *flags |= CT_SCTP_REPL_VTAG; + break; + } + return 1; +} + +#define SCTP_VALID_FLAGS_MAX 2 +static unsigned int dccp_valid_flags[SCTP_VALID_FLAGS_MAX] = { + CT_SCTP_ORIG_SPORT | CT_SCTP_ORIG_DPORT, + CT_SCTP_REPL_SPORT | CT_SCTP_REPL_DPORT, +}; + +static void +final_check(unsigned int flags, unsigned int cmd, struct nf_conntrack *ct) +{ + int ret, partial; + + ret = generic_opt_check(flags, SCTP_OPT_MAX, + sctp_commands_v_options[cmd], sctp_optflags, + dccp_valid_flags, SCTP_VALID_FLAGS_MAX, + &partial); + if (!ret) { + switch(partial) { + case -1: + case 0: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--sport' and " + "`--dport'"); + break; + case 1: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--reply-src-port' and " + "`--reply-dst-port'"); + break; + } + } +} + +static struct ctproto_handler sctp = { + .name = "sctp", + .protonum = IPPROTO_SCTP, + .parse_opts = parse_options, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_sctp(void) +{ + register_proto(&sctp); +} diff --git a/extensions/libct_proto_tcp.c b/extensions/libct_proto_tcp.c new file mode 100644 index 0000000..cb573d0 --- /dev/null +++ b/extensions/libct_proto_tcp.c @@ -0,0 +1,234 @@ +/* + * (C) 2005-2007 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <string.h> +#include <netinet/in.h> /* For htons */ +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> +#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h> + +#include "conntrack.h" + +enum { + CT_TCP_ORIG_SPORT = (1 << 0), + CT_TCP_ORIG_DPORT = (1 << 1), + CT_TCP_REPL_SPORT = (1 << 2), + CT_TCP_REPL_DPORT = (1 << 3), + CT_TCP_MASK_SPORT = (1 << 4), + CT_TCP_MASK_DPORT = (1 << 5), + CT_TCP_STATE = (1 << 6), + CT_TCP_EXPTUPLE_SPORT = (1 << 7), + CT_TCP_EXPTUPLE_DPORT = (1 << 8) +}; + +static struct option opts[] = { + {"orig-port-src", 1, 0, '1'}, + {"sport", 1, 0, '1'}, + {"orig-port-dst", 1, 0, '2'}, + {"dport", 1, 0, '2'}, + {"reply-port-src", 1, 0, '3'}, + {"reply-port-dst", 1, 0, '4'}, + {"mask-port-src", 1, 0, '5'}, + {"mask-port-dst", 1, 0, '6'}, + {"state", 1, 0, '7'}, + {"tuple-port-src", 1, 0, '8'}, + {"tuple-port-dst", 1, 0, '9'}, + {0, 0, 0, 0} +}; + +#define TCP_NUMBER_OF_OPT 10 + +static const char *tcp_optflags[TCP_NUMBER_OF_OPT] = { +"sport", "dport", "reply-port-src", "reply-port-dst", "mask-port-src", +"mask-port-dst", "state", "tuple-port-src", "tuple-port-dst" +}; + +static char tcp_commands_v_options[NUMBER_OF_CMD][TCP_NUMBER_OF_OPT] = +/* Well, it's better than "Re: Sevilla vs Betis" */ +{ + /* 1 2 3 4 5 6 7 8 9 */ +/*CT_LIST*/ {2,2,2,2,0,0,2,0,0}, +/*CT_CREATE*/ {3,3,3,3,0,0,1,0,0}, +/*CT_UPDATE*/ {2,2,2,2,0,0,2,0,0}, +/*CT_DELETE*/ {2,2,2,2,0,0,2,0,0}, +/*CT_GET*/ {3,3,3,3,0,0,2,0,0}, +/*CT_FLUSH*/ {0,0,0,0,0,0,0,0,0}, +/*CT_EVENT*/ {2,2,2,2,0,0,2,0,0}, +/*CT_VERSION*/ {0,0,0,0,0,0,0,0,0}, +/*CT_HELP*/ {0,0,0,0,0,0,0,0,0}, +/*EXP_LIST*/ {0,0,0,0,0,0,0,0,0}, +/*EXP_CREATE*/ {1,1,1,1,1,1,0,1,1}, +/*EXP_DELETE*/ {1,1,1,1,0,0,0,0,0}, +/*EXP_GET*/ {1,1,1,1,0,0,0,0,0}, +/*EXP_FLUSH*/ {0,0,0,0,0,0,0,0,0}, +/*EXP_EVENT*/ {0,0,0,0,0,0,0,0,0}, +}; + +static const char *tcp_states[TCP_CONNTRACK_MAX] = { + [TCP_CONNTRACK_NONE] = "NONE", + [TCP_CONNTRACK_SYN_SENT] = "SYN_SENT", + [TCP_CONNTRACK_SYN_RECV] = "SYN_RECV", + [TCP_CONNTRACK_ESTABLISHED] = "ESTABLISHED", + [TCP_CONNTRACK_FIN_WAIT] = "FIN_WAIT", + [TCP_CONNTRACK_CLOSE_WAIT] = "CLOSE_WAIT", + [TCP_CONNTRACK_LAST_ACK] = "LAST_ACK", + [TCP_CONNTRACK_TIME_WAIT] = "TIME_WAIT", + [TCP_CONNTRACK_CLOSE] = "CLOSE", + [TCP_CONNTRACK_LISTEN] = "LISTEN" +}; + +static void help(void) +{ + fprintf(stdout, " --orig-port-src\t\toriginal source port\n"); + fprintf(stdout, " --orig-port-dst\t\toriginal destination port\n"); + fprintf(stdout, " --reply-port-src\t\treply source port\n"); + fprintf(stdout, " --reply-port-dst\t\treply destination port\n"); + fprintf(stdout, " --mask-port-src\t\tmask source port\n"); + fprintf(stdout, " --mask-port-dst\t\tmask destination port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple src port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple dst port\n"); + fprintf(stdout, " --state\t\t\tTCP state, fe. ESTABLISHED\n"); +} + +static int parse_options(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + int i; + u_int16_t port; + + switch(c) { + case '1': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_TCP); + *flags |= CT_TCP_ORIG_SPORT; + break; + case '2': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_TCP); + *flags |= CT_TCP_ORIG_DPORT; + break; + case '3': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_TCP); + *flags |= CT_TCP_REPL_SPORT; + break; + case '4': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_TCP); + *flags |= CT_TCP_REPL_DPORT; + break; + case '5': + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_TCP); + *flags |= CT_TCP_MASK_SPORT; + break; + case '6': + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_TCP); + *flags |= CT_TCP_MASK_DPORT; + break; + case '7': + for (i=0; i<TCP_CONNTRACK_MAX; i++) { + if (strcmp(optarg, tcp_states[i]) == 0) { + nfct_set_attr_u8(ct, ATTR_TCP_STATE, i); + break; + } + } + if (i == TCP_CONNTRACK_MAX) + exit_error(PARAMETER_PROBLEM, + "unknown TCP state `%s'", optarg); + *flags |= CT_TCP_STATE; + break; + case '8': + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, port); + *flags |= CT_TCP_EXPTUPLE_SPORT; + break; + case '9': + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, port); + *flags |= CT_TCP_EXPTUPLE_DPORT; + break; + } + return 1; +} + +#define TCP_VALID_FLAGS_MAX 2 +static unsigned int tcp_valid_flags[TCP_VALID_FLAGS_MAX] = { + CT_TCP_ORIG_SPORT | CT_TCP_ORIG_DPORT, + CT_TCP_REPL_SPORT | CT_TCP_REPL_DPORT, +}; + +static void final_check(unsigned int flags, + unsigned int cmd, + struct nf_conntrack *ct) +{ + int ret, partial; + + ret = generic_opt_check(flags, TCP_NUMBER_OF_OPT, + tcp_commands_v_options[cmd], tcp_optflags, + tcp_valid_flags, TCP_VALID_FLAGS_MAX, &partial); + if (!ret) { + switch(partial) { + case -1: + case 0: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--sport' and " + "`--dport'"); + break; + case 1: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--reply-src-port' and " + "`--reply-dst-port'"); + break; + } + } + /* Disable TCP window tracking for manually created TCP entries, + * otherwise this will not work. */ + uint8_t tcp_flags = IP_CT_TCP_FLAG_BE_LIBERAL | + IP_CT_TCP_FLAG_SACK_PERM; + + /* This allows to reopen a new connection directly from TIME-WAIT + * as RFC 1122 states. See nf_conntrack_proto_tcp.c for more info. */ + if (nfct_get_attr_u8(ct, ATTR_TCP_STATE) >= TCP_CONNTRACK_TIME_WAIT) + tcp_flags |= IP_CT_TCP_FLAG_CLOSE_INIT; + + nfct_set_attr_u8(ct, ATTR_TCP_FLAGS_ORIG, tcp_flags); + nfct_set_attr_u8(ct, ATTR_TCP_MASK_ORIG, tcp_flags); + nfct_set_attr_u8(ct, ATTR_TCP_FLAGS_REPL, tcp_flags); + nfct_set_attr_u8(ct, ATTR_TCP_MASK_REPL, tcp_flags); +} + +static struct ctproto_handler tcp = { + .name = "tcp", + .protonum = IPPROTO_TCP, + .parse_opts = parse_options, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_tcp(void) +{ + register_proto(&tcp); +} diff --git a/extensions/libct_proto_udp.c b/extensions/libct_proto_udp.c new file mode 100644 index 0000000..d7c4da1 --- /dev/null +++ b/extensions/libct_proto_udp.c @@ -0,0 +1,192 @@ +/* + * (C) 2005-2007 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <netinet/in.h> /* For htons */ +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +#include "conntrack.h" + +enum { + CT_UDP_ORIG_SPORT = (1 << 0), + CT_UDP_ORIG_DPORT = (1 << 1), + CT_UDP_REPL_SPORT = (1 << 2), + CT_UDP_REPL_DPORT = (1 << 3), + CT_UDP_MASK_SPORT = (1 << 4), + CT_UDP_MASK_DPORT = (1 << 5), + CT_UDP_EXPTUPLE_SPORT = (1 << 6), + CT_UDP_EXPTUPLE_DPORT = (1 << 7) +}; + +static struct option opts[] = { + {"orig-port-src", 1, 0, '1'}, + {"sport", 1, 0, '1'}, + {"orig-port-dst", 1, 0, '2'}, + {"dport", 1, 0, '2'}, + {"reply-port-src", 1, 0, '3'}, + {"reply-port-dst", 1, 0, '4'}, + {"mask-port-src", 1, 0, '5'}, + {"mask-port-dst", 1, 0, '6'}, + {"tuple-port-src", 1, 0, '7'}, + {"tuple-port-dst", 1, 0, '8'}, + {0, 0, 0, 0} +}; + +#define UDP_NUMBER_OF_OPT 9 + +static const char *udp_optflags[UDP_NUMBER_OF_OPT] = { +"sport", "dport", "reply-port-src", "reply-port-dst", "mask-port-src", +"mask-port-dst", "tuple-port-src", "tuple-port-dst" +}; + +static void help(void) +{ + fprintf(stdout, " --orig-port-src\t\toriginal source port\n"); + fprintf(stdout, " --orig-port-dst\t\toriginal destination port\n"); + fprintf(stdout, " --reply-port-src\t\treply source port\n"); + fprintf(stdout, " --reply-port-dst\t\treply destination port\n"); + fprintf(stdout, " --mask-port-src\t\tmask source port\n"); + fprintf(stdout, " --mask-port-dst\t\tmask destination port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple src port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple dst port\n"); +} + +static char udp_commands_v_options[NUMBER_OF_CMD][UDP_NUMBER_OF_OPT] = +/* Well, it's better than "Re: Galeano vs Vargas Llosa" */ +{ + /* 1 2 3 4 5 6 7 8 */ +/*CT_LIST*/ {2,2,2,2,0,0,0,0}, +/*CT_CREATE*/ {3,3,3,3,0,0,0,0}, +/*CT_UPDATE*/ {2,2,2,2,0,0,0,0}, +/*CT_DELETE*/ {2,2,2,2,0,0,0,0}, +/*CT_GET*/ {3,3,3,3,0,0,0,0}, +/*CT_FLUSH*/ {0,0,0,0,0,0,0,0}, +/*CT_EVENT*/ {2,2,2,2,0,0,0,0}, +/*CT_VERSION*/ {0,0,0,0,0,0,0,0}, +/*CT_HELP*/ {0,0,0,0,0,0,0,0}, +/*EXP_LIST*/ {0,0,0,0,0,0,0,0}, +/*EXP_CREATE*/ {1,1,1,1,1,1,1,1}, +/*EXP_DELETE*/ {1,1,1,1,0,0,0,0}, +/*EXP_GET*/ {1,1,1,1,0,0,0,0}, +/*EXP_FLUSH*/ {0,0,0,0,0,0,0,0}, +/*EXP_EVENT*/ {0,0,0,0,0,0,0,0}, +}; + +static int parse_options(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + switch(c) { + u_int16_t port; + case '1': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_UDP); + *flags |= CT_UDP_ORIG_SPORT; + break; + case '2': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_UDP); + *flags |= CT_UDP_ORIG_DPORT; + break; + case '3': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_UDP); + *flags |= CT_UDP_REPL_SPORT; + break; + case '4': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_UDP); + *flags |= CT_UDP_REPL_DPORT; + break; + case '5': + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_UDP); + *flags |= CT_UDP_MASK_SPORT; + break; + case '6': + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_UDP); + *flags |= CT_UDP_MASK_DPORT; + break; + case '7': + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(exptuple, + ATTR_ORIG_L4PROTO, + IPPROTO_UDP); + *flags |= CT_UDP_EXPTUPLE_SPORT; + break; + case '8': + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(exptuple, + ATTR_ORIG_L4PROTO, + IPPROTO_UDP); + *flags |= CT_UDP_EXPTUPLE_DPORT; + break; + } + return 1; +} + +#define UDP_VALID_FLAGS_MAX 2 +static unsigned int udp_valid_flags[UDP_VALID_FLAGS_MAX] = { + CT_UDP_ORIG_SPORT | CT_UDP_ORIG_DPORT, + CT_UDP_REPL_SPORT | CT_UDP_REPL_DPORT, +}; + +static void final_check(unsigned int flags, + unsigned int cmd, + struct nf_conntrack *ct) +{ + int ret, partial; + + ret = generic_opt_check(flags, UDP_NUMBER_OF_OPT, + udp_commands_v_options[cmd], udp_optflags, + udp_valid_flags, UDP_VALID_FLAGS_MAX, &partial); + if (!ret) { + switch(partial) { + case -1: + case 0: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--sport' and " + "`--dport'"); + break; + case 1: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--reply-src-port' and " + "`--reply-dst-port'"); + break; + } + } +} + +static struct ctproto_handler udp = { + .name = "udp", + .protonum = IPPROTO_UDP, + .parse_opts = parse_options, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_udp(void) +{ + register_proto(&udp); +} diff --git a/extensions/libct_proto_udplite.c b/extensions/libct_proto_udplite.c new file mode 100644 index 0000000..bffd5fe --- /dev/null +++ b/extensions/libct_proto_udplite.c @@ -0,0 +1,197 @@ +/* + * (C) 2009 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> +#include <stdlib.h> +#include <netinet/in.h> /* For htons */ +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +#include "conntrack.h" + +#ifndef IPPROTO_UDPLITE +#define IPPROTO_UDPLITE 136 +#endif + +enum { + CT_UDPLITE_ORIG_SPORT = (1 << 0), + CT_UDPLITE_ORIG_DPORT = (1 << 1), + CT_UDPLITE_REPL_SPORT = (1 << 2), + CT_UDPLITE_REPL_DPORT = (1 << 3), + CT_UDPLITE_MASK_SPORT = (1 << 4), + CT_UDPLITE_MASK_DPORT = (1 << 5), + CT_UDPLITE_EXPTUPLE_SPORT = (1 << 6), + CT_UDPLITE_EXPTUPLE_DPORT = (1 << 7) +}; + +#define UDP_OPT_MAX 11 +static struct option opts[UDP_OPT_MAX] = { + { .name = "orig-port-src", .has_arg = 1, .val = '1' }, + { .name = "orig-port-dst", .has_arg = 1, .val = '2' }, + { .name = "reply-port-src", .has_arg = 1, .val = '3' }, + { .name = "reply-port-dst", .has_arg = 1, .val = '4' }, + { .name = "mask-port-src", .has_arg = 1, .val = '5' }, + { .name = "mask-port-dst", .has_arg = 1, .val = '6' }, + { .name = "tuple-port-src", .has_arg = 1, .val = '7' }, + { .name = "tuple-port-dst", .has_arg = 1, .val = '8' }, + { .name = "sport", .has_arg = 1, .val = '1' }, + { .name = "dport", .has_arg = 1, .val = '2' }, + {0, 0, 0, 0} +}; + +static const char *udplite_optflags[UDP_OPT_MAX] = { + [0] = "sport", + [1] = "dport", + [2] = "reply-port-src", + [3] = "reply-port-dst", + [4] = "mask-port-src", + [5] = "mask-port-dst", + [6] = "tuple-port-src", + [7] = "tuple-port-dst" +}; + +static void help(void) +{ + fprintf(stdout, " --orig-port-src\t\toriginal source port\n"); + fprintf(stdout, " --orig-port-dst\t\toriginal destination port\n"); + fprintf(stdout, " --reply-port-src\t\treply source port\n"); + fprintf(stdout, " --reply-port-dst\t\treply destination port\n"); + fprintf(stdout, " --mask-port-src\t\tmask source port\n"); + fprintf(stdout, " --mask-port-dst\t\tmask destination port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple src port\n"); + fprintf(stdout, " --tuple-port-src\t\texpectation tuple dst port\n"); +} + +static char udplite_commands_v_options[NUMBER_OF_CMD][UDP_OPT_MAX] = +{ + /* 1 2 3 4 5 6 7 8 */ +/*CT_LIST*/ {2,2,2,2,0,0,0,0}, +/*CT_CREATE*/ {3,3,3,3,0,0,0,0}, +/*CT_UPDATE*/ {2,2,2,2,0,0,0,0}, +/*CT_DELETE*/ {2,2,2,2,0,0,0,0}, +/*CT_GET*/ {3,3,3,3,0,0,0,0}, +/*CT_FLUSH*/ {0,0,0,0,0,0,0,0}, +/*CT_EVENT*/ {2,2,2,2,0,0,0,0}, +/*CT_VERSION*/ {0,0,0,0,0,0,0,0}, +/*CT_HELP*/ {0,0,0,0,0,0,0,0}, +/*EXP_LIST*/ {0,0,0,0,0,0,0,0}, +/*EXP_CREATE*/ {1,1,1,1,1,1,1,1}, +/*EXP_DELETE*/ {1,1,1,1,0,0,0,0}, +/*EXP_GET*/ {1,1,1,1,0,0,0,0}, +/*EXP_FLUSH*/ {0,0,0,0,0,0,0,0}, +/*EXP_EVENT*/ {0,0,0,0,0,0,0,0}, +}; + +static int parse_options(char c, + struct nf_conntrack *ct, + struct nf_conntrack *exptuple, + struct nf_conntrack *mask, + unsigned int *flags) +{ + switch(c) { + u_int16_t port; + case '1': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_ORIG_SPORT; + break; + case '2': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_ORIG_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_ORIG_DPORT; + break; + case '3': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_SRC, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_REPL_SPORT; + break; + case '4': + port = htons(atoi(optarg)); + nfct_set_attr_u16(ct, ATTR_REPL_PORT_DST, port); + nfct_set_attr_u8(ct, ATTR_REPL_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_REPL_DPORT; + break; + case '5': + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_MASK_SPORT; + break; + case '6': + port = htons(atoi(optarg)); + nfct_set_attr_u16(mask, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(mask, ATTR_ORIG_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_MASK_DPORT; + break; + case '7': + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_SRC, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_EXPTUPLE_SPORT; + break; + case '8': + port = htons(atoi(optarg)); + nfct_set_attr_u16(exptuple, ATTR_ORIG_PORT_DST, port); + nfct_set_attr_u8(exptuple, ATTR_ORIG_L4PROTO, IPPROTO_UDPLITE); + *flags |= CT_UDPLITE_EXPTUPLE_DPORT; + break; + } + return 1; +} + +#define UDPLITE_VALID_FLAGS_MAX 2 +static unsigned int udplite_valid_flags[UDPLITE_VALID_FLAGS_MAX] = { + CT_UDPLITE_ORIG_SPORT | CT_UDPLITE_ORIG_DPORT, + CT_UDPLITE_REPL_SPORT | CT_UDPLITE_REPL_DPORT, +}; + +static void +final_check(unsigned int flags, unsigned int cmd, struct nf_conntrack *ct) +{ + int ret, partial; + + ret = generic_opt_check(flags, UDP_OPT_MAX, + udplite_commands_v_options[cmd], + udplite_optflags, + udplite_valid_flags, UDPLITE_VALID_FLAGS_MAX, + &partial); + if (!ret) { + switch(partial) { + case -1: + case 0: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--sport' and " + "`--dport'"); + break; + case 1: + exit_error(PARAMETER_PROBLEM, "you have to specify " + "`--reply-src-port' and " + "`--reply-dst-port'"); + break; + } + } +} + +static struct ctproto_handler udplite = { + .name = "udplite", + .protonum = IPPROTO_UDPLITE, + .parse_opts = parse_options, + .final_check = final_check, + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_udplite(void) +{ + register_proto(&udplite); +} diff --git a/extensions/libct_proto_unknown.c b/extensions/libct_proto_unknown.c new file mode 100644 index 0000000..2a47704 --- /dev/null +++ b/extensions/libct_proto_unknown.c @@ -0,0 +1,34 @@ +/* + * (C) 2005-2008 by Pablo Neira Ayuso <pablo@netfilter.org> + * + * 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. + * + */ +#include <stdio.h> +#include <getopt.h> + +#include "conntrack.h" + +static struct option opts[] = { + {0, 0, 0, 0} +}; + +static void help(void) +{ + fprintf(stdout, " no options (unsupported)\n"); +} + +struct ctproto_handler ct_proto_unknown = { + .name = "unknown", + .help = help, + .opts = opts, + .version = VERSION, +}; + +void register_unknown(void) +{ + /* we don't actually insert this protocol in the list */ +} |