diff options
Diffstat (limited to 'config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6')
4 files changed, 5239 insertions, 0 deletions
diff --git a/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/Makefile.am b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/Makefile.am new file mode 100644 index 00000000..0879c6e3 --- /dev/null +++ b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/Makefile.am @@ -0,0 +1,17 @@ +## $Id +AUTOMAKE_OPTIONS=foreign no-dependencies + +noinst_LIBRARIES = libspo.a + +libspo_a_SOURCES = spo_alert_fast.c spo_alert_fast.h \ +spo_alert_full.c spo_alert_full.h \ +spo_alert_syslog.c spo_alert_syslog.h spo_alert_unixsock.c \ +spo_alert_unixsock.h spo_csv.c spo_csv.h spo_database.c spo_database.h \ +spo_log_null.c spo_log_null.h spo_log_tcpdump.c \ +spo_log_tcpdump.h spo_unified.c spo_unified2.c spo_unified.h spo_unified2.h \ +spo_log_ascii.c spo_log_ascii.h spo_alert_sf_socket.h spo_alert_sf_socket.c \ +spo_alert_prelude.c spo_alert_prelude.h spo_alert_arubaaction.c spo_alert_arubaaction.h \ +spo_alert_test.c spo_alert_test.h \ +spo_pf.h spo_pf.c + +INCLUDES = @INCLUDES@ diff --git a/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/Makefile.in b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/Makefile.in new file mode 100644 index 00000000..3f06cc31 --- /dev/null +++ b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/Makefile.in @@ -0,0 +1,445 @@ +# Makefile.in generated by automake 1.9.6 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005 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@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +top_builddir = ../.. +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +INSTALL = @INSTALL@ +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@ +subdir = src/output-plugins +DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/libprelude.m4 \ + $(top_srcdir)/configure.in +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs +CONFIG_HEADER = $(top_builddir)/config.h +CONFIG_CLEAN_FILES = +LIBRARIES = $(noinst_LIBRARIES) +ARFLAGS = cru +libspo_a_AR = $(AR) $(ARFLAGS) +libspo_a_LIBADD = +am_libspo_a_OBJECTS = spo_alert_fast.$(OBJEXT) \ + spo_alert_full.$(OBJEXT) spo_alert_syslog.$(OBJEXT) \ + spo_alert_unixsock.$(OBJEXT) spo_csv.$(OBJEXT) \ + spo_database.$(OBJEXT) spo_log_null.$(OBJEXT) \ + spo_log_tcpdump.$(OBJEXT) spo_unified.$(OBJEXT) \ + spo_unified2.$(OBJEXT) spo_log_ascii.$(OBJEXT) \ + spo_alert_sf_socket.$(OBJEXT) spo_alert_prelude.$(OBJEXT) \ + spo_alert_arubaaction.$(OBJEXT) spo_alert_test.$(OBJEXT) \ + spo_pf.$(OBJEXT) +libspo_a_OBJECTS = $(am_libspo_a_OBJECTS) +DEFAULT_INCLUDES = -I. -I$(srcdir) -I$(top_builddir) +depcomp = +am__depfiles_maybe = +COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \ + $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +LTCOMPILE = $(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) \ + $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \ + $(AM_CFLAGS) $(CFLAGS) +CCLD = $(CC) +LINK = $(LIBTOOL) --tag=CC --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ + $(AM_LDFLAGS) $(LDFLAGS) -o $@ +SOURCES = $(libspo_a_SOURCES) +DIST_SOURCES = $(libspo_a_SOURCES) +ETAGS = etags +CTAGS = ctags +DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST) +ACLOCAL = @ACLOCAL@ +AMDEP_FALSE = @AMDEP_FALSE@ +AMDEP_TRUE = @AMDEP_TRUE@ +AMTAR = @AMTAR@ +AR = @AR@ +AUTOCONF = @AUTOCONF@ +AUTOHEADER = @AUTOHEADER@ +AUTOMAKE = @AUTOMAKE@ +AWK = @AWK@ +BUILD_DYNAMIC_EXAMPLES_FALSE = @BUILD_DYNAMIC_EXAMPLES_FALSE@ +BUILD_DYNAMIC_EXAMPLES_TRUE = @BUILD_DYNAMIC_EXAMPLES_TRUE@ +CC = @CC@ +CCDEPMODE = @CCDEPMODE@ +CFLAGS = @CFLAGS@ +CPP = @CPP@ +CPPFLAGS = @CPPFLAGS@ +CXX = @CXX@ +CXXCPP = @CXXCPP@ +CXXDEPMODE = @CXXDEPMODE@ +CXXFLAGS = @CXXFLAGS@ +CYGPATH_W = @CYGPATH_W@ +DEFS = @DEFS@ +DEPDIR = @DEPDIR@ +ECHO = @ECHO@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +EXEEXT = @EXEEXT@ +F77 = @F77@ +FFLAGS = @FFLAGS@ +HAVE_DYNAMIC_PLUGINS_FALSE = @HAVE_DYNAMIC_PLUGINS_FALSE@ +HAVE_DYNAMIC_PLUGINS_TRUE = @HAVE_DYNAMIC_PLUGINS_TRUE@ +HAVE_SUP_IP6_FALSE = @HAVE_SUP_IP6_FALSE@ +HAVE_SUP_IP6_TRUE = @HAVE_SUP_IP6_TRUE@ +HAVE_TARGET_BASED_FALSE = @HAVE_TARGET_BASED_FALSE@ +HAVE_TARGET_BASED_TRUE = @HAVE_TARGET_BASED_TRUE@ +HAVE_ZLIB_FALSE = @HAVE_ZLIB_FALSE@ +HAVE_ZLIB_TRUE = @HAVE_ZLIB_TRUE@ +INCLUDES = @INCLUDES@ +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@ +LDFLAGS = @LDFLAGS@ +LEX = @LEX@ +LIBOBJS = @LIBOBJS@ +LIBPRELUDE_CFLAGS = @LIBPRELUDE_CFLAGS@ +LIBPRELUDE_CONFIG = @LIBPRELUDE_CONFIG@ +LIBPRELUDE_CONFIG_PREFIX = @LIBPRELUDE_CONFIG_PREFIX@ +LIBPRELUDE_LDFLAGS = @LIBPRELUDE_LDFLAGS@ +LIBPRELUDE_LIBS = @LIBPRELUDE_LIBS@ +LIBPRELUDE_PREFIX = @LIBPRELUDE_PREFIX@ +LIBPRELUDE_PTHREAD_CFLAGS = @LIBPRELUDE_PTHREAD_CFLAGS@ +LIBS = @LIBS@ +LIBTOOL = @LIBTOOL@ +LN_S = @LN_S@ +LTLIBOBJS = @LTLIBOBJS@ +MAINT = @MAINT@ +MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@ +MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@ +MAKEINFO = @MAKEINFO@ +OBJEXT = @OBJEXT@ +PACKAGE = @PACKAGE@ +PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@ +PACKAGE_NAME = @PACKAGE_NAME@ +PACKAGE_STRING = @PACKAGE_STRING@ +PACKAGE_TARNAME = @PACKAGE_TARNAME@ +PACKAGE_VERSION = @PACKAGE_VERSION@ +PATH_SEPARATOR = @PATH_SEPARATOR@ +RANLIB = @RANLIB@ +SED = @SED@ +SET_MAKE = @SET_MAKE@ +SHELL = @SHELL@ +STRIP = @STRIP@ +VERSION = @VERSION@ +YACC = @YACC@ +ac_ct_AR = @ac_ct_AR@ +ac_ct_CC = @ac_ct_CC@ +ac_ct_CXX = @ac_ct_CXX@ +ac_ct_F77 = @ac_ct_F77@ +ac_ct_RANLIB = @ac_ct_RANLIB@ +ac_ct_STRIP = @ac_ct_STRIP@ +am__fastdepCC_FALSE = @am__fastdepCC_FALSE@ +am__fastdepCC_TRUE = @am__fastdepCC_TRUE@ +am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@ +am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@ +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@ +datadir = @datadir@ +exec_prefix = @exec_prefix@ +extra_incl = @extra_incl@ +host = @host@ +host_alias = @host_alias@ +host_cpu = @host_cpu@ +host_os = @host_os@ +host_vendor = @host_vendor@ +includedir = @includedir@ +infodir = @infodir@ +install_sh = @install_sh@ +libdir = @libdir@ +libexecdir = @libexecdir@ +localstatedir = @localstatedir@ +mandir = @mandir@ +mkdir_p = @mkdir_p@ +oldincludedir = @oldincludedir@ +prefix = @prefix@ +program_transform_name = @program_transform_name@ +sbindir = @sbindir@ +sharedstatedir = @sharedstatedir@ +sysconfdir = @sysconfdir@ +target_alias = @target_alias@ +AUTOMAKE_OPTIONS = foreign no-dependencies +noinst_LIBRARIES = libspo.a +libspo_a_SOURCES = spo_alert_fast.c spo_alert_fast.h \ +spo_alert_full.c spo_alert_full.h \ +spo_alert_syslog.c spo_alert_syslog.h spo_alert_unixsock.c \ +spo_alert_unixsock.h spo_csv.c spo_csv.h spo_database.c spo_database.h \ +spo_log_null.c spo_log_null.h spo_log_tcpdump.c \ +spo_log_tcpdump.h spo_unified.c spo_unified2.c spo_unified.h spo_unified2.h \ +spo_log_ascii.c spo_log_ascii.h spo_alert_sf_socket.h spo_alert_sf_socket.c \ +spo_alert_prelude.c spo_alert_prelude.h spo_alert_arubaaction.c spo_alert_arubaaction.h \ +spo_alert_test.c spo_alert_test.h \ +spo_pf.h spo_pf.c + +all: all-am + +.SUFFIXES: +.SUFFIXES: .c .lo .o .obj +$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \ + && exit 0; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/output-plugins/Makefile'; \ + cd $(top_srcdir) && \ + $(AUTOMAKE) --foreign src/output-plugins/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: @MAINTAINER_MODE_TRUE@ $(am__configure_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh +$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps) + cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh + +clean-noinstLIBRARIES: + -test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES) +libspo.a: $(libspo_a_OBJECTS) $(libspo_a_DEPENDENCIES) + -rm -f libspo.a + $(libspo_a_AR) libspo.a $(libspo_a_OBJECTS) $(libspo_a_LIBADD) + $(RANLIB) libspo.a + 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uninstall-am \ + uninstall-info-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/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/plugbase.c b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/plugbase.c new file mode 100644 index 00000000..31f381a8 --- /dev/null +++ b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/plugbase.c @@ -0,0 +1,1544 @@ +/* $Id$ */ +/* +** Copyright (C) 2002-2010 Sourcefire, Inc. +** Copyright (C) 1998-2002 Martin Roesch <roesch@sourcefire.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU General Public License Version 2 as +** published by the Free Software Foundation. You may not use, modify or +** distribute this program under any other version of the GNU General +** Public License. +** +** 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. +** +** You should have received a copy of the GNU General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <sys/types.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> + +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif + +#ifndef WIN32 +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#endif /* !WIN32 */ +#include <time.h> +#include <errno.h> + +#include "sf_types.h" +#include "plugbase.h" +#include "spo_plugbase.h" +#include "snort.h" +#include "debug.h" +#include "util.h" +#include "log.h" +#include "detect.h" + +/* built-in preprocessors */ +#include "preprocessors/spp_rpc_decode.h" +#include "preprocessors/spp_bo.h" +#include "preprocessors/spp_stream5.h" +#include "preprocessors/spp_arpspoof.h" +#include "preprocessors/spp_perfmonitor.h" +#include "preprocessors/spp_httpinspect.h" +#include "preprocessors/spp_sfportscan.h" +#include "preprocessors/spp_frag3.h" + +/* built-in detection plugins */ +#include "detection-plugins/sp_pattern_match.h" +#include "detection-plugins/sp_tcp_flag_check.h" +#include "detection-plugins/sp_icmp_type_check.h" +#include "detection-plugins/sp_icmp_code_check.h" +#include "detection-plugins/sp_ttl_check.h" +#include "detection-plugins/sp_ip_id_check.h" +#include "detection-plugins/sp_tcp_ack_check.h" +#include "detection-plugins/sp_tcp_seq_check.h" +#include "detection-plugins/sp_dsize_check.h" +#include "detection-plugins/sp_ipoption_check.h" +#include "detection-plugins/sp_rpc_check.h" +#include "detection-plugins/sp_icmp_id_check.h" +#include "detection-plugins/sp_icmp_seq_check.h" +#include "detection-plugins/sp_session.h" +#include "detection-plugins/sp_ip_tos_check.h" +#include "detection-plugins/sp_ip_fragbits.h" +#include "detection-plugins/sp_tcp_win_check.h" +#include "detection-plugins/sp_ip_same_check.h" +#include "detection-plugins/sp_ip_proto.h" +#include "detection-plugins/sp_ip_same_check.h" +#include "detection-plugins/sp_clientserver.h" +#include "detection-plugins/sp_byte_check.h" +#include "detection-plugins/sp_byte_jump.h" +#include "detection-plugins/sp_isdataat.h" +#include "detection-plugins/sp_pcre.h" +#include "detection-plugins/sp_flowbits.h" +#include "detection-plugins/sp_file_data.h" +#include "detection-plugins/sp_asn1.h" +#ifdef ENABLE_REACT +#include "detection-plugins/sp_react.h" +#endif +#ifdef ENABLE_RESPOND +#include "detection-plugins/sp_respond.h" +#endif +#include "detection-plugins/sp_ftpbounce.h" +#include "detection-plugins/sp_urilen_check.h" +#include "detection-plugins/sp_cvs.h" + +/* built-in output plugins */ +#include "output-plugins/spo_alert_syslog.h" +#include "output-plugins/spo_log_tcpdump.h" +#include "output-plugins/spo_database.h" +#include "output-plugins/spo_alert_fast.h" +#include "output-plugins/spo_alert_full.h" +#include "output-plugins/spo_alert_unixsock.h" +#include "output-plugins/spo_csv.h" +#include "output-plugins/spo_unified.h" +#include "output-plugins/spo_log_null.h" +#include "output-plugins/spo_log_ascii.h" +#include "output-plugins/spo_unified2.h" +#include "output-plugins/spo_pf.h" + +#ifdef ARUBA +#include "output-plugins/spo_alert_arubaaction.h" +#endif + +#ifdef HAVE_LIBPRELUDE +#include "output-plugins/spo_alert_prelude.h" +#endif + +#ifdef LINUX +#include "output-plugins/spo_alert_sf_socket.h" +#endif + +#include "output-plugins/spo_alert_test.h" + +extern ListHead *head_tmp; +extern PreprocConfigFuncNode *preproc_config_funcs; +extern OutputConfigFuncNode *output_config_funcs; +extern RuleOptConfigFuncNode *rule_opt_config_funcs; +extern RuleOptOverrideInitFuncNode *rule_opt_override_init_funcs; +extern RuleOptParseCleanupNode *rule_opt_parse_cleanup_list; +extern PreprocSignalFuncNode *preproc_restart_funcs; +extern PreprocSignalFuncNode *preproc_clean_exit_funcs; +extern PreprocSignalFuncNode *preproc_shutdown_funcs; +extern PreprocSignalFuncNode *preproc_reset_funcs; +extern PreprocSignalFuncNode *preproc_reset_stats_funcs; +extern PreprocStatsFuncNode *preproc_stats_funcs; +extern PluginSignalFuncNode *plugin_shutdown_funcs; +extern PluginSignalFuncNode *plugin_clean_exit_funcs; +extern PluginSignalFuncNode *plugin_restart_funcs; +extern OutputFuncNode *AlertList; +extern OutputFuncNode *LogList; + + +/**************************** Detection Plugin API ****************************/ +/* For translation from enum to char* */ +#ifdef DEBUG +static const char *optTypeMap[OPT_TYPE_MAX] = +{ + "action", + "logging", + "detection" +}; + +#define ENUM2STR(num, map) \ + ((num < sizeof(map)/sizeof(map[0])) ? map[num] : "undefined") +#endif + + +void RegisterRuleOptions(void) +{ + LogMessage("Initializing Plug-ins!\n"); + + SetupPatternMatch(); + SetupTCPFlagCheck(); + SetupIcmpTypeCheck(); + SetupIcmpCodeCheck(); + SetupTtlCheck(); + SetupIpIdCheck(); + SetupTcpAckCheck(); + SetupTcpSeqCheck(); + SetupDsizeCheck(); + SetupIpOptionCheck(); + SetupRpcCheck(); + SetupIcmpIdCheck(); + SetupIcmpSeqCheck(); + SetupSession(); + SetupIpTosCheck(); + SetupFragBits(); + SetupFragOffset(); + SetupTcpWinCheck(); + SetupIpProto(); + SetupIpSameCheck(); + SetupClientServer(); + SetupByteTest(); + SetupByteJump(); + SetupIsDataAt(); + SetupFileData(); + SetupPcre(); + SetupFlowBits(); + SetupAsn1(); +#ifdef ENABLE_REACT + SetupReact(); +#endif +#ifdef ENABLE_RESPOND + SetupRespond(); +#endif + SetupFTPBounce(); + SetupUriLenCheck(); + SetupCvs(); +} + +/**************************************************************************** + * + * Function: RegisterRuleOption(char *, void (*func)(), enum OptionType) + * + * Purpose: Associates a rule option keyword with an option setup/linking + * function. + * + * Arguments: keyword => The option keyword to associate with the option + * handler + * *func => function pointer to the handler + * type => used to determine where keyword is allowed + * + * Returns: void function + * + ***************************************************************************/ +void RegisterRuleOption(char *opt_name, RuleOptConfigFunc config_func, + RuleOptOverrideInitFunc override_init_func, + RuleOptType opt_type, + RuleOptOtnHandler otn_handler) +{ + RuleOptConfigFuncNode *node; + + DEBUG_WRAP(DebugMessage(DEBUG_PLUGIN, "Registering keyword:func => %s/%s:%p\n", + ENUM2STR(opt_type, optTypeMap), opt_name, config_func);); + + node = (RuleOptConfigFuncNode *)SnortAlloc(sizeof(RuleOptConfigFuncNode)); + + if (rule_opt_config_funcs == NULL) + { + rule_opt_config_funcs = node; + } + else + { + RuleOptConfigFuncNode *tmp = rule_opt_config_funcs; + RuleOptConfigFuncNode *last; + + do + { + if (strcasecmp(tmp->keyword, opt_name) == 0) + { + free(node); + FatalError("Duplicate detection plugin keyword: %s.\n", + file_line, opt_name); + } + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + last->next = node; + } + + node->keyword = SnortStrdup(opt_name); + node->type = opt_type; + node->func = config_func; + node->otn_handler = otn_handler; + + if (override_init_func != NULL) + { + RuleOptOverrideInitFuncNode *node_override = + (RuleOptOverrideInitFuncNode *)SnortAlloc(sizeof(RuleOptOverrideInitFuncNode)); + + if (rule_opt_override_init_funcs == NULL) + { + rule_opt_override_init_funcs = node_override; + } + else + { + RuleOptOverrideInitFuncNode *tmp = rule_opt_override_init_funcs; + RuleOptOverrideInitFuncNode *last; + + do + { + if (strcasecmp(tmp->keyword, opt_name) == 0) + { + free(node_override); + FatalError("RegisterRuleOption: Duplicate detection plugin keyword:" + " (%s) (%s)!\n", tmp->keyword, opt_name); + } + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + last->next = node_override; + } + + node_override->keyword = SnortStrdup(opt_name); + node_override->type = opt_type; + node_override->func = override_init_func; + node_override->otn_handler = otn_handler; + } +} + +void RegisterOverrideKeyword(char *keyword, char *option, RuleOptOverrideFunc func) +{ + RuleOptOverrideInitFuncNode *node = rule_opt_override_init_funcs; + + while (node != NULL) + { + if (strcasecmp(node->keyword, keyword) == 0) + { + node->func(keyword, option, func); + break; + } + + node = node->next; + } +} + +/**************************************************************************** + * + * Function: DumpPlugIns() + * + * Purpose: Prints the keyword->function list + * + * Arguments: None. + * + * Returns: void function + * + ***************************************************************************/ +void DumpRuleOptions(void) +{ + RuleOptConfigFuncNode *node; + + node = rule_opt_config_funcs; + + LogMessage("-------------------------------------------------\n"); + LogMessage(" Keyword | Plugin Registered @\n"); + LogMessage("-------------------------------------------------\n"); + + while (node != NULL) + { + LogMessage("%-13s: %p\n", node->keyword, node->func); + node = node->next; + } + + LogMessage("-------------------------------------------------\n"); + LogMessage("\n"); +} + + +/**************************************************************************** + * + * Function: AddOptFuncToList(int (*func)(), OptTreeNode *) + * + * Purpose: Links the option detection module to the OTN + * + * Arguments: (*func)() => function pointer to the detection module + * otn => pointer to the current OptTreeNode + * + * Returns: void function + * + ***************************************************************************/ +OptFpList * AddOptFuncToList(RuleOptEvalFunc func, OptTreeNode *otn) +{ + OptFpList *ofp = (OptFpList *)SnortAlloc(sizeof(OptFpList)); + + DEBUG_WRAP(DebugMessage(DEBUG_CONFIGRULES,"Adding new rule to list\n");); + + /* if there are no nodes on the function list... */ + if (otn->opt_func == NULL) + { + otn->opt_func = ofp; + } + else + { + OptFpList *tmp = otn->opt_func; + + /* walk to the end of the list */ + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = ofp; + } + + DEBUG_WRAP(DebugMessage(DEBUG_CONFIGRULES,"Set OptTestFunc to %p\n", func);); + + ofp->OptTestFunc = func; + + return ofp; +} + +/**************************************************************************** + * + * Function: AddRspFuncToList(int (*func)(), OptTreeNode *) + * + * Purpose: Adds Response function to OTN + * + * Arguments: (*func)() => function pointer to the response module + * otn => pointer to the current OptTreeNode + * + * Returns: void function + * + ***************************************************************************/ +void AddRspFuncToList(ResponseFunc func, OptTreeNode *otn, void *params) +{ + RspFpList *rsp = (RspFpList *)SnortAlloc(sizeof(RspFpList)); + + DEBUG_WRAP(DebugMessage(DEBUG_CONFIGRULES,"Adding response to list\n");); + + /* if there are no nodes on the function list... */ + if (otn->rsp_func == NULL) + { + otn->rsp_func = rsp; + } + else + { + RspFpList *tmp = otn->rsp_func; + + /* walk to the end of the list */ + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = rsp; + } + + DEBUG_WRAP(DebugMessage(DEBUG_CONFIGRULES,"Set ResponseFunc to %p\n", func);); + + rsp->func = func; + rsp->params = params; +} + +void PostConfigInitPlugins(PluginSignalFuncNode *post_config_funcs) +{ + while (post_config_funcs != NULL) + { + post_config_funcs->func(0, post_config_funcs->arg); + post_config_funcs = post_config_funcs->next; + } +} + +void FreeRuleOptConfigFuncs(RuleOptConfigFuncNode *head) +{ + + while (head != NULL) + { + RuleOptConfigFuncNode *tmp = head; + + head = head->next; + + if (tmp->keyword != NULL) + free(tmp->keyword); + + free(tmp); + } +} + +void FreeRuleOptOverrideInitFuncs(RuleOptOverrideInitFuncNode *head) +{ + + while (head != NULL) + { + RuleOptOverrideInitFuncNode *tmp = head; + + head = head->next; + + if (tmp->keyword != NULL) + free(tmp->keyword); + + free(tmp); + } +} + +void FreePluginSigFuncs(PluginSignalFuncNode *head) +{ + while (head != NULL) + { + PluginSignalFuncNode *tmp = head; + + head = head->next; + + /* don't free sig->arg, that's free'd by the CleanExit/Restart func */ + free(tmp); + } +} + + +/************************** Preprocessor Plugin API ***************************/ +static void AddFuncToPreprocSignalList(PreprocSignalFunc, void *, + PreprocSignalFuncNode **, uint16_t, uint32_t); + + +void RegisterPreprocessors(void) +{ + LogMessage("Initializing Preprocessors!\n"); + + SetupARPspoof(); + SetupFrag3(); + SetupStream5(); + SetupRpcDecode(); + SetupBo(); + SetupHttpInspect(); + SetupPerfMonitor(); + SetupSfPortscan(); +} + +/**************************************************************************** + * + * Function: RegisterPreprocessor(char *, void (*)(char *)) + * + * Purpose: Associates a preprocessor statement with its function. + * + * Arguments: keyword => The option keyword to associate with the + * preprocessor + * *func => function pointer to the handler + * + * Returns: void function + * + ***************************************************************************/ +#ifndef SNORT_RELOAD +void RegisterPreprocessor(char *keyword, PreprocConfigFunc func) +#else +void RegisterPreprocessor(char *keyword, PreprocConfigFunc func, + PreprocReloadFunc rfunc, PreprocReloadSwapFunc sfunc, + PreprocReloadSwapFreeFunc ffunc) +#endif +{ + PreprocConfigFuncNode *node = + (PreprocConfigFuncNode *)SnortAlloc(sizeof(PreprocConfigFuncNode)); + + DEBUG_WRAP(DebugMessage(DEBUG_PLUGIN,"Registering keyword:preproc => %s:%p\n", keyword, func);); + + if (preproc_config_funcs == NULL) + { + preproc_config_funcs = node; + } + else + { + PreprocConfigFuncNode *tmp = preproc_config_funcs; + PreprocConfigFuncNode *last; + + do + { + if (strcasecmp(tmp->keyword, keyword) == 0) + { + free(node); + FatalError("Duplicate preprocessor keyword: %s.\n", keyword); + } + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + last->next = node; + } + + node->keyword = SnortStrdup(keyword); + node->config_func = func; + +#ifdef SNORT_RELOAD + node->reload_func = rfunc; + node->reload_swap_func = sfunc; + node->reload_swap_free_func = ffunc; +#endif +} + +PreprocConfigFuncNode * GetPreprocConfig(char *keyword) +{ + PreprocConfigFuncNode *head = preproc_config_funcs; + + if (keyword == NULL) + return NULL; + + while (head != NULL) + { + if (strcasecmp(head->keyword, keyword) == 0) + return head; + + head = head->next; + } + + return NULL; +} + +PreprocConfigFunc GetPreprocConfigFunc(char *keyword) +{ + PreprocConfigFuncNode *head = preproc_config_funcs; + + if (keyword == NULL) + return NULL; + + while (head != NULL) + { + if (strcasecmp(head->keyword, keyword) == 0) + return head->config_func; + + head = head->next; + } + + return NULL; +} + +/**************************************************************************** + * + * Function: RegisterPreprocStats(char *keyword, void (*func)(int)) + * + * Purpose: Registers a function for printing preprocessor final stats + * (or other if it has a use for printing final stats) + * + * Arguments: keyword => keyword (preprocessor) whose stats will print + * func => function pointer to the handler + * + * Returns: void function + * + ***************************************************************************/ +void RegisterPreprocStats(char *keyword, PreprocStatsFunc func) +{ + PreprocStatsFuncNode *node; + + DEBUG_WRAP(DebugMessage(DEBUG_PLUGIN,"Registering final stats function: " + "preproc => %s:%p\n", keyword, func);); + + node = (PreprocStatsFuncNode *)SnortAlloc(sizeof(PreprocStatsFuncNode)); + + if (preproc_stats_funcs == NULL) + { + preproc_stats_funcs = node; + } + else + { + PreprocStatsFuncNode *tmp = preproc_stats_funcs; + PreprocStatsFuncNode *last; + + do + { + if (strcasecmp(tmp->keyword, keyword) == 0) + { + free(node); + FatalError("Duplicate preprocessor keyword: %s.\n", keyword); + } + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + last->next = node; + } + + node->keyword = SnortStrdup(keyword); + node->func = func; +} + +/**************************************************************************** + * + * Function: DumpPreprocessors() + * + * Purpose: Prints the keyword->preprocess list + * + * Arguments: None. + * + * Returns: void function + * + ***************************************************************************/ +void DumpPreprocessors(void) +{ + PreprocConfigFuncNode *node = preproc_config_funcs; + + LogMessage("-------------------------------------------------\n"); + LogMessage(" Keyword | Preprocessor @ \n"); + LogMessage("-------------------------------------------------\n"); + + while (node != NULL) + { + LogMessage("%-13s: %p\n", node->keyword, node->config_func); + node = node->next; + } + + LogMessage("-------------------------------------------------\n\n"); +} + +int IsPreprocEnabled(uint32_t preproc_id) +{ + PreprocEvalFuncNode *node; + SnortConfig *sc = snort_conf_for_parsing; + tSfPolicyId policy_id = getParserPolicy(); + SnortPolicy *p; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + p = sc->targeted_policies[policy_id]; + if (p == NULL) + return 0; + + for (node = p->preproc_eval_funcs; node != NULL; node = node->next) + { + if (node->preproc_id == preproc_id) + return 1; + } + + return 0; +} + +PreprocEvalFuncNode * AddFuncToPreprocList(PreprocEvalFunc func, uint16_t priority, + uint32_t preproc_id, uint32_t proto_mask) +{ + PreprocEvalFuncNode *node; + SnortConfig *sc = snort_conf_for_parsing; + tSfPolicyId policy_id = getParserPolicy(); + SnortPolicy *p; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + p = sc->targeted_policies[policy_id]; + if (p == NULL) + return NULL; + + DEBUG_WRAP(DebugMessage(DEBUG_CONFIGRULES, + "Adding preprocessor function ID %d/bit %d/pri %d to list\n", + preproc_id, p->num_preprocs, priority);); + + node = (PreprocEvalFuncNode *)SnortAlloc(sizeof(PreprocEvalFuncNode)); + + if (p->preproc_eval_funcs == NULL) + { + p->preproc_eval_funcs = node; + } + else + { + PreprocEvalFuncNode *tmp = p->preproc_eval_funcs; + PreprocEvalFuncNode *last = NULL; + + do + { + if (tmp->preproc_id == preproc_id) + { + free(node); + FatalError("Preprocessor already registered with ID %d\n", + preproc_id); + } + + /* Insert higher priority preprocessors first. Lower priority + * number means higher priority */ + if (priority < tmp->priority) + break; + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + /* Priority higher than first item in list */ + if (last == NULL) + { + node->next = tmp; + p->preproc_eval_funcs = node; + } + else + { + node->next = tmp; + last->next = node; + } + } + + node->func = func; + node->priority = priority; + node->preproc_id = preproc_id; + node->preproc_bit = (1 << preproc_id); + node->proto_mask = proto_mask; + + p->num_preprocs++; + p->preproc_proto_mask |= proto_mask; + p->preproc_bit_mask |= node->preproc_bit; + + return node; +} + +void AddFuncToPreprocPostConfigList(PreprocPostConfigFunc func, void *data) +{ + PreprocPostConfigFuncNode *node; + SnortConfig *sc = snort_conf_for_parsing; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + node = (PreprocPostConfigFuncNode *)SnortAlloc(sizeof(PreprocPostConfigFuncNode)); + + if (sc->preproc_post_config_funcs == NULL) + { + sc->preproc_post_config_funcs = node; + } + else + { + PreprocPostConfigFuncNode *tmp = sc->preproc_post_config_funcs; + + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = node; + } + + node->data = data; + node->func = func; +} + +void PostConfigPreprocessors(SnortConfig *sc) +{ + PreprocPostConfigFuncNode *list; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config is NULL.\n", + __FILE__, __LINE__); + } + + snort_conf_for_parsing = sc; + + list = sc->preproc_post_config_funcs; + + for (; list != NULL; list = list->next) + { + if (list->func != NULL) + list->func(list->data); + } + + snort_conf_for_parsing = NULL; +} + +#ifdef SNORT_RELOAD +void SwapPreprocConfigurations(void) +{ + PreprocConfigFuncNode *node = preproc_config_funcs; + + for (; node != NULL; node = node->next) + { + if (node->reload_swap_func != NULL) + node->swap_free_data = node->reload_swap_func(); + } +} + +void FreeSwappedPreprocConfigurations(void) +{ + PreprocConfigFuncNode *node = preproc_config_funcs; + + for (; node != NULL; node = node->next) + { + if ((node->reload_swap_free_func != NULL) && + (node->swap_free_data != NULL)) + { + node->reload_swap_free_func(node->swap_free_data); + node->swap_free_data = NULL; + } + } +} + +void AddFuncToPreprocReloadVerifyList(PreprocReloadVerifyFunc func) +{ + PreprocReloadVerifyFuncNode *node; + SnortConfig *sc = snort_conf_for_parsing; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + node = (PreprocReloadVerifyFuncNode *)SnortAlloc(sizeof(PreprocReloadVerifyFuncNode)); + + if (sc->preproc_reload_verify_funcs == NULL) + { + sc->preproc_reload_verify_funcs = node; + } + else + { + PreprocReloadVerifyFuncNode *tmp = sc->preproc_reload_verify_funcs; + + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = node; + } + + node->func = func; +} + +void FreePreprocReloadVerifyFuncList(PreprocReloadVerifyFuncNode *head) +{ + while (head != NULL) + { + PreprocReloadVerifyFuncNode *tmp = head; + + head = head->next; + free(tmp); + } +} +#endif + +void AddFuncToConfigCheckList(PreprocCheckConfigFunc func) +{ + PreprocCheckConfigFuncNode *node; + SnortConfig *sc = snort_conf_for_parsing; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + node = (PreprocCheckConfigFuncNode *)SnortAlloc(sizeof(PreprocCheckConfigFuncNode)); + + if (sc->preproc_config_check_funcs == NULL) + { + sc->preproc_config_check_funcs = node; + } + else + { + PreprocCheckConfigFuncNode *tmp = sc->preproc_config_check_funcs; + + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = node; + } + + node->func = func; +} + +/* functions to aid in cleaning up after plugins */ +void AddFuncToPreprocRestartList(PreprocSignalFunc func, void *arg, + uint16_t priority, uint32_t preproc_id) +{ + AddFuncToPreprocSignalList(func, arg, &preproc_restart_funcs, priority, preproc_id); +} + +void AddFuncToPreprocCleanExitList(PreprocSignalFunc func, void *arg, + uint16_t priority, uint32_t preproc_id) +{ + AddFuncToPreprocSignalList(func, arg, &preproc_clean_exit_funcs, priority, preproc_id); +} + +void AddFuncToPreprocShutdownList(PreprocSignalFunc func, void *arg, + uint16_t priority, uint32_t preproc_id) +{ + AddFuncToPreprocSignalList(func, arg, &preproc_shutdown_funcs, priority, preproc_id); +} + +void AddFuncToPreprocResetList(PreprocSignalFunc func, void *arg, + uint16_t priority, uint32_t preproc_id) +{ + AddFuncToPreprocSignalList(func, arg, &preproc_reset_funcs, priority, preproc_id); +} + +void AddFuncToPreprocResetStatsList(PreprocSignalFunc func, void *arg, + uint16_t priority, uint32_t preproc_id) +{ + AddFuncToPreprocSignalList(func, arg, &preproc_reset_stats_funcs, priority, preproc_id); +} + +static void AddFuncToPreprocSignalList(PreprocSignalFunc func, void *arg, + PreprocSignalFuncNode **list, + uint16_t priority, uint32_t preproc_id) +{ + PreprocSignalFuncNode *node; + + if (list == NULL) + return; + + node = (PreprocSignalFuncNode *)SnortAlloc(sizeof(PreprocSignalFuncNode)); + + if (*list == NULL) + { + *list = node; + } + else + { + PreprocSignalFuncNode *tmp = *list; + PreprocSignalFuncNode *last = NULL; + + do + { + /* Insert higher priority stuff first. Lower priority + * number means higher priority */ + if (priority < tmp->priority) + break; + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + /* Priority higher than first item in list */ + if (last == NULL) + { + node->next = tmp; + *list = node; + } + else + { + node->next = tmp; + last->next = node; + } + } + + node->func = func; + node->arg = arg; + node->preproc_id = preproc_id; + node->priority = priority; +} + +void AddFuncToPreprocReassemblyPktList(PreprocReassemblyPktFunc func, uint32_t preproc_id) +{ + PreprocReassemblyPktFuncNode *node; + SnortConfig *sc = snort_conf_for_parsing; + tSfPolicyId policy_id = getParserPolicy(); + SnortPolicy *p; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + p = sc->targeted_policies[policy_id]; + if (p == NULL) + return; + + node = (PreprocReassemblyPktFuncNode *)SnortAlloc(sizeof(PreprocReassemblyPktFuncNode)); + + if (p->preproc_reassembly_pkt_funcs == NULL) + { + p->preproc_reassembly_pkt_funcs = node; + } + else + { + PreprocReassemblyPktFuncNode *tmp = p->preproc_reassembly_pkt_funcs; + + /* just insert at front of list */ + p->preproc_reassembly_pkt_funcs = node; + node->next = tmp; + } + + node->func = func; + node->preproc_id = preproc_id; +} + +void FreePreprocConfigFuncs(void) +{ + PreprocConfigFuncNode *head = preproc_config_funcs; + PreprocConfigFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + if (head->keyword != NULL) + free(head->keyword); + free(head); + head = tmp; + } +} + +void FreePreprocCheckConfigFuncs(PreprocCheckConfigFuncNode *head) +{ + PreprocCheckConfigFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + free(head); + head = tmp; + } +} + +void FreePreprocPostConfigFuncs(PreprocPostConfigFuncNode *head) +{ + PreprocPostConfigFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + free(head); + head = tmp; + } +} + +void FreePreprocStatsFuncs(PreprocStatsFuncNode *head) +{ + PreprocStatsFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + if (head->keyword != NULL) + free(head->keyword); + free(head); + head = tmp; + } +} + +void FreePreprocEvalFuncs(PreprocEvalFuncNode *head) +{ + PreprocEvalFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + //if (head->context) + // free(head->context); + free(head); + head = tmp; + } +} + +void FreePreprocReassemblyPktFuncs(PreprocReassemblyPktFuncNode *head) +{ + PreprocReassemblyPktFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + free(head); + head = tmp; + } +} + +void FreePreprocSigFuncs(PreprocSignalFuncNode *head) +{ + PreprocSignalFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + /* don't free sig->arg, that's free'd by the CleanExit/Restart func */ + free(head); + head = tmp; + } +} + +void CheckPreprocessorsConfig(SnortConfig *sc) +{ + PreprocCheckConfigFuncNode *idx; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config is NULL.\n", + __FILE__, __LINE__); + } + + snort_conf_for_parsing = sc; + + idx = sc->preproc_config_check_funcs; + + LogMessage("Verifying Preprocessor Configurations!\n"); + + while(idx != NULL) + { + idx->func(); + idx = idx->next; + } + + snort_conf_for_parsing = NULL; +} + +#ifdef SNORT_RELOAD +int VerifyReloadedPreprocessors(SnortConfig *sc) +{ + PreprocReloadVerifyFuncNode *node; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config is NULL.\n", + __FILE__, __LINE__); + } + + snort_conf_for_parsing = sc; + + node = sc->preproc_reload_verify_funcs; + while (node != NULL) + { + if (node->func != NULL) + { + if (node->func() == -1) + return -1; + } + + node = node->next; + } + + snort_conf_for_parsing = NULL; + + return 0; +} +#endif + + +/***************************** Output Plugin API *****************************/ +extern OutputConfigFuncNode *output_config_funcs; + +static void AppendOutputFuncList(OutputFunc, void *, OutputFuncNode **); + +void RegisterOutputPlugins(void) +{ + LogMessage("Initializing Output Plugins!\n"); + + AlertSyslogSetup(); + LogTcpdumpSetup(); + DatabaseSetup(); + AlertFastSetup(); + AlertFullSetup(); + AlertPfSetup(); +#ifndef WIN32 + /* Win32 doesn't support AF_UNIX sockets */ + AlertUnixSockSetup(); +#endif /* !WIN32 */ + AlertCSVSetup(); + LogNullSetup(); + UnifiedSetup(); + Unified2Setup(); + LogAsciiSetup(); + +#ifdef ARUBA + AlertArubaActionSetup(); +#endif + +#ifdef LINUX + /* This uses linux only capabilities */ + AlertSFSocket_Setup(); +#endif + +#ifdef HAVE_LIBPRELUDE + AlertPreludeSetup(); +#endif + + AlertTestSetup(); +} + +/**************************************************************************** + * + * Function: RegisterOutputPlugin(char *, void (*func)(Packet *, u_char *)) + * + * Purpose: Associates an output statement with its function. + * + * Arguments: keyword => The output keyword to associate with the + * output processor + * type => alert or log types + * *func => function pointer to the handler + * + * Returns: void function + * + ***************************************************************************/ +void RegisterOutputPlugin(char *keyword, int type_flags, OutputConfigFunc func) +{ + OutputConfigFuncNode *node = (OutputConfigFuncNode *)SnortAlloc(sizeof(OutputConfigFuncNode)); + + DEBUG_WRAP(DebugMessage(DEBUG_PLUGIN,"Registering keyword:output => %s:%p\n", + keyword, func);); + + if (output_config_funcs == NULL) + { + output_config_funcs = node; + } + else + { + OutputConfigFuncNode *tmp = output_config_funcs; + OutputConfigFuncNode *last; + + do + { + if (strcasecmp(tmp->keyword, keyword) == 0) + { + free(node); + FatalError("Duplicate output keyword: %s\n", keyword); + } + + last = tmp; + tmp = tmp->next; + + } while (tmp != NULL); + + last->next = node; + } + + node->keyword = SnortStrdup(keyword); + node->func = func; + node->output_type_flags = type_flags; +} + +OutputConfigFunc GetOutputConfigFunc(char *keyword) +{ + OutputConfigFuncNode *head = output_config_funcs; + + if (keyword == NULL) + return NULL; + + while (head != NULL) + { + if (strcasecmp(head->keyword, keyword) == 0) + return head->func; + + head = head->next; + } + + return NULL; +} + +int GetOutputTypeFlags(char *keyword) +{ + OutputConfigFuncNode *head = output_config_funcs; + + if (keyword == NULL) + return 0; + + while (head != NULL) + { + if (strcasecmp(head->keyword, keyword) == 0) + return head->output_type_flags; + + head = head->next; + } + + return 0; +} + +void FreeOutputConfigFuncs(void) +{ + OutputConfigFuncNode *head = output_config_funcs; + OutputConfigFuncNode *tmp; + + while (head != NULL) + { + tmp = head->next; + if (head->keyword != NULL) + free(head->keyword); + free(head); + head = tmp; + } +} + +void FreeOutputList(OutputFuncNode *list) +{ + while (list != NULL) + { + OutputFuncNode *tmp = list; + + list = list->next; + free(tmp); + } +} + +/**************************************************************************** + * + * Function: DumpOutputPlugins() + * + * Purpose: Prints the keyword->preprocess list + * + * Arguments: None. + * + * Returns: void function + * + ***************************************************************************/ +void DumpOutputPlugins(void) +{ + OutputConfigFuncNode *idx = output_config_funcs; + + LogMessage("-------------------------------------------------\n"); + LogMessage(" Keyword | Output @ \n"); + LogMessage("-------------------------------------------------\n"); + while(idx != NULL) + { + LogMessage("%-13s: %p\n", idx->keyword, idx->func); + idx = idx->next; + } + LogMessage("-------------------------------------------------\n\n"); +} + +void AddFuncToOutputList(OutputFunc func, OutputType type, void *arg) +{ + switch (type) + { + case OUTPUT_TYPE__ALERT: + if (head_tmp != NULL) + AppendOutputFuncList(func, arg, &head_tmp->AlertList); + else + AppendOutputFuncList(func, arg, &AlertList); + + break; + + case OUTPUT_TYPE__LOG: + if (head_tmp != NULL) + AppendOutputFuncList(func, arg, &head_tmp->LogList); + else + AppendOutputFuncList(func, arg, &LogList); + + break; + + default: + /* just to be error-prone */ + FatalError("Unknown output type: %i. Possible bug, please " + "report.\n", type); + } +} + +void AppendOutputFuncList(OutputFunc func, void *arg, OutputFuncNode **list) +{ + OutputFuncNode *node; + + if (list == NULL) + return; + + node = (OutputFuncNode *)SnortAlloc(sizeof(OutputFuncNode)); + + if (*list == NULL) + { + *list = node; + } + else + { + OutputFuncNode *tmp = *list; + + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = node; + } + + node->func = func; + node->arg = arg; +} + + +/************************** Miscellaneous Functions **************************/ + +/* functions to aid in cleaning up after plugins + * Used for both rule options and output. Preprocessors have their own */ +void AddFuncToRestartList(PluginSignalFunc func, void *arg) +{ + AddFuncToSignalList(func, arg, &plugin_restart_funcs); +} + +void AddFuncToCleanExitList(PluginSignalFunc func, void *arg) +{ + AddFuncToSignalList(func, arg, &plugin_clean_exit_funcs); +} + +void AddFuncToShutdownList(PluginSignalFunc func, void *arg) +{ + AddFuncToSignalList(func, arg, &plugin_shutdown_funcs); +} + +void AddFuncToPostConfigList(PluginSignalFunc func, void *arg) +{ + SnortConfig *sc = snort_conf_for_parsing; + + if (sc == NULL) + { + FatalError("%s(%d) Snort config for parsing is NULL.\n", + __FILE__, __LINE__); + } + + AddFuncToSignalList(func, arg, &sc->plugin_post_config_funcs); +} + +void AddFuncToSignalList(PluginSignalFunc func, void *arg, PluginSignalFuncNode **list) +{ + PluginSignalFuncNode *node; + + if (list == NULL) + return; + + node = (PluginSignalFuncNode *)SnortAlloc(sizeof(PluginSignalFuncNode)); + + if (*list == NULL) + { + *list = node; + } + else + { + PluginSignalFuncNode *tmp = *list; + + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = node; + } + + node->func = func; + node->arg = arg; +} + +void AddFuncToRuleOptParseCleanupList(RuleOptParseCleanupFunc func) +{ + RuleOptParseCleanupNode *node = + (RuleOptParseCleanupNode *)SnortAlloc(sizeof(RuleOptParseCleanupNode)); + + if (rule_opt_parse_cleanup_list == NULL) + { + rule_opt_parse_cleanup_list = node; + } + else + { + RuleOptParseCleanupNode *tmp = rule_opt_parse_cleanup_list; + + while (tmp->next != NULL) + tmp = tmp->next; + + tmp->next = node; + } + + node->func = func; +} + +void RuleOptParseCleanup(void) +{ + RuleOptParseCleanupNode *list = rule_opt_parse_cleanup_list; + + for (; list != NULL; list = list->next) + { + if (list->func != NULL) + list->func(); + } +} + +void FreeRuleOptParseCleanupList(RuleOptParseCleanupNode *head) +{ + while (head != NULL) + { + RuleOptParseCleanupNode *tmp = head; + + head = head->next; + free(tmp); + } +} + + diff --git a/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/util.c b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/util.c new file mode 100644 index 00000000..b2d3b38b --- /dev/null +++ b/config/snort-dev/snortsam-package-code/patches/spoink_patch/2.8.6/util.c @@ -0,0 +1,3233 @@ +/* $Id$ */ +/* +** Copyright (C) 2002-2010 Sourcefire, Inc. +** Copyright (C) 2002 Martin Roesch <roesch@sourcefire.com> +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU General Public License Version 2 as +** published by the Free Software Foundation. You may not use, modify or +** distribute this program under any other version of the GNU General +** Public License. +** +** 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. +** +** You should have received a copy of the GNU General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <sys/types.h> + +#ifndef WIN32 +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <sys/wait.h> +#include <dirent.h> +#include <fnmatch.h> +#endif /* !WIN32 */ + +#include <stdarg.h> +#include <syslog.h> +#include <errno.h> +#include <sys/stat.h> +#include <time.h> +#include <signal.h> +#include <unistd.h> + +#ifndef WIN32 +#include <grp.h> +#include <pwd.h> +#include <netdb.h> +#include <limits.h> +#endif /* !WIN32 */ + +#include <fcntl.h> + +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif + +#ifdef ZLIB +#include <zlib.h> +#endif + +#include "snort.h" +#include "mstring.h" +#include "debug.h" +#include "util.h" +#include "parser.h" +#include "inline.h" +#include "build.h" +#include "plugbase.h" +#include "sf_types.h" +#include "sflsq.h" +#include "ipv6_port.h" + +#include "pcre.h" + +#include "mpse.h" + +#include "ppm.h" + +#ifdef TARGET_BASED +#include "sftarget_reader.h" +#endif + +#ifdef WIN32 +#include "win32/WIN32-Code/name.h" +#endif + +#include "stream5_common.h" + +#ifdef PATH_MAX +#define PATH_MAX_UTIL PATH_MAX +#else +#define PATH_MAX_UTIL 1024 +#endif /* PATH_MAX */ + +extern Stream5Stats s5stats; +extern int datalink; +extern pcap_t *pcap_handle; +extern PreprocStatsFuncNode *preproc_stats_funcs; + +static PcapPktStats pkt_stats; + +/* + * you may need to adjust this on the systems which don't have standard + * paths defined + */ +#ifndef _PATH_VARRUN +static char _PATH_VARRUN[STD_BUF]; +#endif + + +#ifdef NAME_MAX +#define NAME_MAX_UTIL NAME_MAX +#else +#define NAME_MAX_UTIL 256 +#endif /* NAME_MAX */ + +#define FILE_MAX_UTIL (PATH_MAX_UTIL + NAME_MAX_UTIL) + +/**************************************************************************** + * + * Function: CalcPct(uint64_t, uint64_t) + * + * Purpose: Calculate the percentage of a value compared to a total + * + * Arguments: cnt => the numerator in the equation + * total => the denominator in the calculation + * + * Returns: pct -> the percentage of cnt to value + * + ****************************************************************************/ +double CalcPct(uint64_t cnt, uint64_t total) +{ + double pct = 0.0; + + if (total == 0.0) + { + pct = (double)cnt; + } + else + { + pct = (double)cnt / (double)total; + } + + pct *= 100.0; + + return pct; +} + + +/**************************************************************************** + * + * Function: DisplayBanner() + * + * Purpose: Show valuable proggie info + * + * Arguments: None. + * + * Returns: 0 all the time + * + ****************************************************************************/ +int DisplayBanner(void) +{ + const char * info; + const char * pcre_ver; +#ifdef ZLIB + const char * zlib_ver; +#endif + + info = getenv("HOSTTYPE"); + if( !info ) + { + info=""; + } + + pcre_ver = pcre_version(); +#ifdef ZLIB + zlib_ver = zlib_version; +#endif + + LogMessage("\n"); + LogMessage(" ,,_ -*> Snort! <*-\n"); + LogMessage(" o\" )~ Version %s%s%s (Build %s) %s %s\n", + VERSION, +#ifdef SUP_IP6 + " IPv6", +#else + "", +#endif +#ifdef GRE + " GRE", +#else + "", +#endif + BUILD, +#ifdef GIDS + "inline", +#else + "", +#endif + info); + LogMessage(" '''' By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team\n"); + LogMessage(" Copyright (C) 1998-2010 Sourcefire, Inc., et al.\n"); + LogMessage(" Using PCRE version: %s\n", pcre_ver); +#ifdef ZLIB + LogMessage(" Using ZLIB version: %s\n", zlib_ver); +#endif + LogMessage("\n"); + LogMessage(" ___ Built Date for Snort on Pfsense 2.0 is May 25 2010.\n"); + LogMessage(" ___/ f \\ Orion IPS Output Code Copyright (C) 2009-2010 Robert Zelaya.\n"); + LogMessage("/ p \\___/Sense\n"); + LogMessage("\\___/ \\\n"); + LogMessage(" \\___/ Using Snort.org dynamic plugins and Orion IPS source.\n"); + LogMessage("\n"); + + return 0; +} + + + +/**************************************************************************** + * + * Function: ts_print(register const struct, char *) + * + * Purpose: Generate a time stamp and stuff it in a buffer. This one has + * millisecond precision. Oh yeah, I ripped this code off from + * TCPdump, props to those guys. + * + * Arguments: timeval => clock struct coming out of libpcap + * timebuf => buffer to stuff timestamp into + * + * Returns: void function + * + ****************************************************************************/ +void ts_print(register const struct timeval *tvp, char *timebuf) +{ + register int s; + int localzone; + time_t Time; + struct timeval tv; + struct timezone tz; + struct tm *lt; /* place to stick the adjusted clock data */ + + /* if null was passed, we use current time */ + if(!tvp) + { + /* manual page (for linux) says tz is never used, so.. */ + bzero((char *) &tz, sizeof(tz)); + gettimeofday(&tv, &tz); + tvp = &tv; + } + + localzone = snort_conf->thiszone; + + /* + ** If we're doing UTC, then make sure that the timezone is correct. + */ + if (ScOutputUseUtc()) + localzone = 0; + + s = (tvp->tv_sec + localzone) % 86400; + Time = (tvp->tv_sec + localzone) - s; + + lt = gmtime(&Time); + + if (ScOutputIncludeYear()) + { + (void) SnortSnprintf(timebuf, TIMEBUF_SIZE, + "%02d/%02d/%02d-%02d:%02d:%02d.%06u ", + lt->tm_mon + 1, lt->tm_mday, lt->tm_year - 100, + s / 3600, (s % 3600) / 60, s % 60, + (u_int) tvp->tv_usec); + } + else + { + (void) SnortSnprintf(timebuf, TIMEBUF_SIZE, + "%02d/%02d-%02d:%02d:%02d.%06u ", lt->tm_mon + 1, + lt->tm_mday, s / 3600, (s % 3600) / 60, s % 60, + (u_int) tvp->tv_usec); + } +} + + + +/**************************************************************************** + * + * Function: gmt2local(time_t) + * + * Purpose: Figures out how to adjust the current clock reading based on the + * timezone you're in. Ripped off from TCPdump. + * + * Arguments: time_t => offset from GMT + * + * Returns: offset seconds from GMT + * + ****************************************************************************/ +int gmt2local(time_t t) +{ + register int dt, dir; + register struct tm *gmt, *loc; + struct tm sgmt; + + if(t == 0) + t = time(NULL); + + gmt = &sgmt; + *gmt = *gmtime(&t); + loc = localtime(&t); + + dt = (loc->tm_hour - gmt->tm_hour) * 60 * 60 + + (loc->tm_min - gmt->tm_min) * 60; + + dir = loc->tm_year - gmt->tm_year; + + if(dir == 0) + dir = loc->tm_yday - gmt->tm_yday; + + dt += dir * 24 * 60 * 60; + + return(dt); +} + + + + +/**************************************************************************** + * + * Function: copy_argv(u_char **) + * + * Purpose: Copies a 2D array (like argv) into a flat string. Stolen from + * TCPDump. + * + * Arguments: argv => 2D array to flatten + * + * Returns: Pointer to the flat string + * + ****************************************************************************/ +char *copy_argv(char **argv) +{ + char **p; + u_int len = 0; + char *buf; + char *src, *dst; + //void ftlerr(char *,...); + + p = argv; + if(*p == 0) + return 0; + + while(*p) + len += strlen(*p++) + 1; + + buf = (char *) calloc(1,len); + + if(buf == NULL) + { + FatalError("calloc() failed: %s\n", strerror(errno)); + } + p = argv; + dst = buf; + + while((src = *p++) != NULL) + { + while((*dst++ = *src++) != '\0'); + dst[-1] = ' '; + } + + dst[-1] = '\0'; + + /* Check for an empty string */ + dst = buf; + while (isspace((int)*dst)) + dst++; + + if (strlen(dst) == 0) + { + free(buf); + buf = NULL; + } + + return buf; +} + + +/**************************************************************************** + * + * Function: strip(char *) + * + * Purpose: Strips a data buffer of CR/LF/TABs. Replaces CR/LF's with + * NULL and TABs with spaces. + * + * Arguments: data => ptr to the data buf to be stripped + * + * Returns: void + * + * 3/7/07 - changed to return void - use strlen to get size of string + * + * Note that this function will turn all '\n' and '\r' into null chars + * so, e.g. 'Hello\nWorld\n' => 'Hello\x00World\x00' + * note that the string is now just 'Hello' and the length is shortened + * by more than just an ending '\n' or '\r' + ****************************************************************************/ +void strip(char *data) +{ + int size; + char *end; + char *idx; + + idx = data; + end = data + strlen(data); + size = end - idx; + + while(idx != end) + { + if((*idx == '\n') || + (*idx == '\r')) + { + *idx = 0; + size--; + } + if(*idx == '\t') + { + *idx = ' '; + } + idx++; + } +} + +/* + * Function: ErrorMessage(const char *, ...) + * + * Purpose: Print a message to stderr. + * + * Arguments: format => the formatted error string to print out + * ... => format commands/fillers + * + * Returns: void function + */ +void ErrorMessage(const char *format,...) +{ + char buf[STD_BUF+1]; + va_list ap; + + if (snort_conf == NULL) + return; + + va_start(ap, format); + + if (ScDaemonMode() || ScLogSyslog()) + { + vsnprintf(buf, STD_BUF, format, ap); + buf[STD_BUF] = '\0'; + syslog(LOG_CONS | LOG_DAEMON | LOG_ERR, "%s", buf); + } + else + { + vfprintf(stderr, format, ap); + } + va_end(ap); +} + +/* + * Function: LogMessage(const char *, ...) + * + * Purpose: Print a message to stderr or with logfacility. + * + * Arguments: format => the formatted error string to print out + * ... => format commands/fillers + * + * Returns: void function + */ +void LogMessage(const char *format,...) +{ + char buf[STD_BUF+1]; + va_list ap; + + if (snort_conf == NULL) + return; + + if (ScLogQuiet() && !ScDaemonMode() && !ScLogSyslog()) + return; + + va_start(ap, format); + + if (ScDaemonMode() || ScLogSyslog()) + { + vsnprintf(buf, STD_BUF, format, ap); + buf[STD_BUF] = '\0'; + syslog(LOG_DAEMON | LOG_NOTICE, "%s", buf); + } + else + { + vfprintf(stderr, format, ap); + } + + va_end(ap); +} + +/* + * Function: CreateApplicationEventLogEntry(const char *) + * + * Purpose: Add an entry to the Win32 "Application" EventLog + * + * Arguments: szMessage => the formatted error string to print out + * + * Returns: void function + */ +#if defined(WIN32) && defined(ENABLE_WIN32_SERVICE) +void CreateApplicationEventLogEntry(const char *msg) +{ + HANDLE hEventLog; + char* pEventSourceName = "SnortService"; + + /* prepare to write to Application log on local host + * with Event Source of SnortService + */ + AddEventSource(pEventSourceName); + hEventLog = RegisterEventSource(NULL, pEventSourceName); + if (hEventLog == NULL) + { + /* Could not register the event source. */ + return; + } + + if (!ReportEvent(hEventLog, /* event log handle */ + EVENTLOG_ERROR_TYPE, /* event type */ + 0, /* category zero */ + EVMSG_SIMPLE, /* event identifier */ + NULL, /* no user security identifier */ + 1, /* one substitution string */ + 0, /* no data */ + &msg, /* pointer to array of strings */ + NULL)) /* pointer to data */ + { + /* Could not report the event. */ + } + + DeregisterEventSource(hEventLog); +} +#endif /* WIN32 && ENABLE_WIN32_SERVICE */ + + +/* + * Function: FatalError(const char *, ...) + * + * Purpose: When a fatal error occurs, this function prints the error message + * and cleanly shuts down the program + * + * Arguments: format => the formatted error string to print out + * ... => format commands/fillers + * + * Returns: void function + */ +NORETURN void FatalError(const char *format,...) +{ + char buf[STD_BUF+1]; + va_list ap; + + va_start(ap, format); + vsnprintf(buf, STD_BUF, format, ap); + va_end(ap); + + buf[STD_BUF] = '\0'; + + if ((snort_conf != NULL) && (ScDaemonMode() || ScLogSyslog())) + { + syslog(LOG_CONS | LOG_DAEMON | LOG_ERR, "FATAL ERROR: %s", buf); + } + else + { + fprintf(stderr, "ERROR: %s", buf); + fprintf(stderr,"Fatal Error, Quitting..\n"); +#if defined(WIN32) && defined(ENABLE_WIN32_SERVICE) + CreateApplicationEventLogEntry(buf); +#endif + } + + exit(1); +} + + +/**************************************************************************** + * + * Function: CreatePidFile(char *) + * + * Purpose: Creates a PID file + * + * Arguments: Interface opened. + * + * Returns: void function + * + ****************************************************************************/ +static FILE *pid_lockfile = NULL; +static FILE *pid_file = NULL; +void CreatePidFile(char *intf) +{ + struct stat pt; + int pid = (int) getpid(); +#ifdef WIN32 + char dir[STD_BUF + 1]; +#endif + + if (!ScReadMode()) + { + LogMessage("Checking PID path...\n"); + + if (strlen(snort_conf->pid_path) != 0) + { + if((stat(snort_conf->pid_path, &pt) == -1) || + !S_ISDIR(pt.st_mode) || access(snort_conf->pid_path, W_OK) == -1) + { +#ifndef WIN32 + /* Save this just in case it's reset with LogMessage call */ + int err = errno; + + LogMessage("WARNING: %s is invalid, trying " + "/var/run...\n", snort_conf->pid_path); + if (err) + { + LogMessage("Previous Error, errno=%d, (%s)\n", + err, strerror(err) == NULL ? "Unknown error" : strerror(err)); + } +#endif + memset(snort_conf->pid_path, 0, sizeof(snort_conf->pid_path)); + } + else + { + LogMessage("PID path stat checked out ok, " + "PID path set to %s\n", snort_conf->pid_path); + } + } + + if (strlen(snort_conf->pid_path) == 0) + { +#ifndef _PATH_VARRUN +# ifndef WIN32 + SnortStrncpy(_PATH_VARRUN, "/var/run/", sizeof(_PATH_VARRUN)); +# else + if (GetCurrentDirectory(sizeof(dir) - 1, dir)) + SnortStrncpy(_PATH_VARRUN, dir, sizeof(_PATH_VARRUN)); +# endif /* WIN32 */ +#else + LogMessage("PATH_VARRUN is set to %s on this operating " + "system\n", _PATH_VARRUN); +#endif /* _PATH_VARRUN */ + + stat(_PATH_VARRUN, &pt); + + if(!S_ISDIR(pt.st_mode) || access(_PATH_VARRUN, W_OK) == -1) + { + LogMessage("WARNING: _PATH_VARRUN is invalid, trying " + "/var/log...\n"); + SnortStrncpy(snort_conf->pid_path, "/var/log/", sizeof(snort_conf->pid_path)); + stat(snort_conf->pid_path, &pt); + + if(!S_ISDIR(pt.st_mode) || access(snort_conf->pid_path, W_OK) == -1) + { + LogMessage("WARNING: %s is invalid, logging Snort " + "PID path to log directory (%s)\n", snort_conf->pid_path, + snort_conf->log_dir); + CheckLogDir(); + SnortSnprintf(snort_conf->pid_path, sizeof(snort_conf->pid_path), + "%s/", snort_conf->log_dir); + } + } + else + { + LogMessage("PID path stat checked out ok, " + "PID path set to %s\n", _PATH_VARRUN); + SnortStrncpy(snort_conf->pid_path, _PATH_VARRUN, sizeof(snort_conf->pid_path)); + } + } + } + + if(intf == NULL || strlen(snort_conf->pid_path) == 0) + { + /* snort_conf->pid_path should have some value by now + * so let us just be sane. */ + FatalError("CreatePidFile() failed to lookup interface or pid_path is unknown!\n"); + } + + SnortSnprintf(snort_conf->pid_filename, sizeof(snort_conf->pid_filename), + "%s/snort_%s%s.pid", snort_conf->pid_path, intf, snort_conf->pidfile_suffix); + +#ifndef WIN32 + if (!ScNoLockPidFile()) + { + char pid_lockfilename[STD_BUF+1]; + int lock_fd; + + /* First, lock the PID file */ + SnortSnprintf(pid_lockfilename, STD_BUF, "%s.lck", snort_conf->pid_filename); + pid_lockfile = fopen(pid_lockfilename, "w"); + + if (pid_lockfile) + { + struct flock lock; + lock_fd = fileno(pid_lockfile); + + lock.l_type = F_WRLCK; + lock.l_whence = SEEK_SET; + lock.l_start = 0; + lock.l_len = 0; + + if (fcntl(lock_fd, F_SETLK, &lock) == -1) + { + ClosePidFile(); + FatalError("Failed to Lock PID File \"%s\" for PID \"%d\"\n", snort_conf->pid_filename, pid); + } + } + } +#endif + + /* Okay, were able to lock PID file, now open and write PID */ + pid_file = fopen(snort_conf->pid_filename, "w"); + if(pid_file) + { + LogMessage("Writing PID \"%d\" to file \"%s\"\n", pid, snort_conf->pid_filename); + fprintf(pid_file, "%d\n", pid); + fflush(pid_file); + } + else + { + ErrorMessage("Failed to create pid file %s", snort_conf->pid_filename); + snort_conf->pid_filename[0] = 0; + } +} + +/**************************************************************************** + * + * Function: ClosePidFile(char *) + * + * Purpose: Releases lock on a PID file + * + * Arguments: None + * + * Returns: void function + * + ****************************************************************************/ +void ClosePidFile(void) +{ + if (pid_file) + { + fclose(pid_file); + pid_file = NULL; + } + if (pid_lockfile) + { + fclose(pid_lockfile); + pid_lockfile = NULL; + } +} + +/**************************************************************************** + * + * Function: SetUidGid() + * + * Purpose: Sets safe UserID and GroupID if needed + * + * Arguments: none + * + * Returns: void function + * + ****************************************************************************/ +void SetUidGid(int user_id, int group_id) +{ +#ifndef WIN32 + + if ((group_id != -1) && (getgid() != (gid_t)group_id)) + { + if (!InlineModeSetPrivsAllowed()) + { + ErrorMessage("Cannot set uid and gid when running Snort in " + "inline mode.\n"); + return; + } + + if (setgid(group_id) < 0) + FatalError("Cannot set gid: %d\n", group_id); + + DEBUG_WRAP(DebugMessage(DEBUG_INIT, "Set gid to %d\n", group_id);); + } + + if ((user_id != -1) && (getuid() != (uid_t)user_id)) + { + struct passwd *pw = getpwuid(user_id); + + if (!InlineModeSetPrivsAllowed()) + { + ErrorMessage("Cannot set uid and gid when running Snort in " + "inline mode.\n"); + return; + } + + if (pw != NULL) + { + /* getpwuid and initgroups may use the same static buffers */ + char *username = SnortStrdup(pw->pw_name); + + if ((getuid() == 0) && (initgroups(username, group_id) < 0)) + { + free(username); + FatalError("Can not initgroups(%s,%d)", + username, group_id); + } + + free(username); + } + + /** just to be on a safe side... **/ + endgrent(); + endpwent(); + + if (setuid(user_id) < 0) + FatalError("Can not set uid: %d\n", user_id); + + DEBUG_WRAP(DebugMessage(DEBUG_INIT, "Set uid to %d\n", user_id);); + } +#endif /* WIN32 */ +} + +#ifdef TIMESTATS + +static IntervalStats istats = {0}; +time_t start_time; + +void InitTimeStats(void) +{ + start_time = time(NULL); +} + +void ResetTimeStats(void) +{ + memset(&istats, 0, sizeof(istats)); +} + +/* This function prints out stats based on a configurable time + * interval. It is an indication on how well snort is */ +/* processing packets, including types, drops, etc */ +void DropStatsPerTimeInterval(void) +{ + double per_sec, per_minute, per_hour; + uint64_t recv, drop; + uint64_t total = 0; + uint32_t timestats_interval = ScTimestatsInterval(); + +#ifdef PCAP_CLOSE + if (UpdatePcapPktStats(0) != -1) +#else + if (UpdatePcapPktStats() != -1) +#endif + { + recv = GetPcapPktStatsRecv(); + drop = GetPcapPktStatsDrop(); + + istats.recv = recv - istats.recv_total; + istats.recv_total = recv; + + istats.drop = drop - istats.drop_total; + istats.drop_total = drop; + + /* calculate received packets by type */ + istats.tcp = pc.tcp - istats.tcp_total; + istats.tcp_total = pc.tcp; + + istats.udp = pc.udp - istats.udp_total; + istats.udp_total = pc.udp; + + istats.icmp = pc.icmp - istats.icmp_total; + istats.icmp_total = pc.icmp; + + istats.arp = pc.arp - istats.arp_total; + istats.arp_total = pc.arp; + +#ifdef GRE + istats.ip4ip4 = pc.ip4ip4 - istats.ip4ip4_total; + istats.ip4ip4_total = pc.ip4ip4; + + istats.ip4ip6 = pc.ip4ip6 - istats.ip4ip6_total; + istats.ip4ip6_total = pc.ip4ip6; + + istats.ip6ip4 = pc.ip6ip4 - istats.ip6ip4_total; + istats.ip6ip4_total = pc.ip6ip4; + + istats.ip6ip6 = pc.ip6ip6 - istats.ip6ip6_total; + istats.ip6ip6_total = pc.ip6ip6; + + istats.gre = pc.gre - istats.gre_total; + istats.gre_total = pc.gre; + + istats.gre_ip = pc.gre_ip - istats.gre_ip_total; + istats.gre_ip_total = pc.gre_ip; + + istats.gre_eth = pc.gre_eth - istats.gre_eth_total; + istats.gre_eth_total = pc.gre_eth; + + istats.gre_arp = pc.gre_arp - istats.gre_arp_total; + istats.gre_arp_total = pc.gre_arp; + + istats.gre_ipv6 = pc.gre_ipv6 - istats.gre_ipv6_total; + istats.gre_ipv6_total = pc.gre_ipv6; + + istats.gre_ipx = pc.gre_ipx - istats.gre_ipx_total; + istats.gre_ipx_total = pc.gre_ipx; + + istats.gre_loopback = pc.gre_loopback - istats.gre_loopback_total; + istats.gre_loopback_total = pc.gre_loopback; + + istats.gre_vlan = pc.gre_vlan - istats.gre_vlan_total; + istats.gre_vlan_total = pc.gre_vlan; + + istats.gre_ppp = pc.gre_ppp - istats.gre_ppp_total; + istats.gre_ppp_total = pc.gre_ppp; +#endif + +#ifdef DLT_IEEE802_11 /* if we are tracking wireless, add this to output */ + istats.wifi_mgmt = pc.wifi_mgmt - istats.wifi_mgmt_total; + istats.wifi_mgmt_total = pc.wifi_mgmt; + + istats.wifi_control = pc.wifi_control - istats.wifi_control_total; + istats.wifi_control_total = pc.wifi_control; + + istats.wifi_data = pc.wifi_data - istats.wifi_data_total; + istats.wifi_data_total = pc.wifi_data; +#endif + + istats.ipx = pc.ipx - istats.ipx_total; + istats.ipx_total = pc.ipx; + + istats.eapol = pc.eapol - istats.eapol_total; + istats.eapol_total = pc.eapol; + + istats.ipv6 = pc.ipv6 - istats.ipv6_total; + istats.ipv6_total = pc.ipv6; + + istats.ethloopback = pc.ethloopback - istats.ethloopback_total; + istats.ethloopback_total = pc.ethloopback; + + istats.other = pc.other - istats.other_total; + istats.other_total = pc.other; + + istats.discards = pc.discards - istats.discards_total; + istats.discards_total = pc.discards; + + if (pc.frags > 0) /* do we have any fragmented packets being seen? */ + { + istats.frags = pc.frags - istats.frags_total; + istats.frags_total = pc.frags; + + istats.frag_trackers = pc.frag_trackers - istats.frag_trackers_total; + istats.frag_trackers_total = pc.frag_trackers; + + istats.frag_rebuilt = pc.rebuilt_frags - istats.frag_rebuilt_total; + istats.frag_rebuilt_total = pc.rebuilt_frags; + + istats.frag_element = pc.rebuild_element - istats.frag_element_total; + istats.frag_element_total = pc.rebuild_element; + + istats.frag_incomp = pc.frag_incomp - istats.frag_incomp_total; + istats.frag_incomp_total = pc.frag_incomp; + + istats.frag_timeout = pc.frag_timeout - istats.frag_timeout_total; + istats.frag_timeout_total = pc.frag_timeout; + + istats.frag_mem_faults = pc.frag_mem_faults - istats.frag_mem_faults_total; + istats.frag_mem_faults_total = pc.frag_mem_faults; + } + + if (pc.tcp_stream_pkts > 0) /* do we have TCP stream re-assembly going on? */ + { + istats.tcp_str_packets = pc.tcp_stream_pkts - istats.tcp_str_packets_total; + istats.tcp_str_packets_total = pc.tcp_stream_pkts; + + istats.tcp_str_trackers = pc.tcp_streams - istats.tcp_str_trackers_total; + istats.tcp_str_trackers_total = pc.tcp_streams; + + istats.tcp_str_flushes = pc.rebuilt_tcp - istats.tcp_str_flushes_total; + istats.tcp_str_flushes_total = pc.rebuilt_tcp; + + istats.tcp_str_segs_used = pc.rebuilt_segs - istats.tcp_str_segs_used_total; + istats.tcp_str_segs_used_total = pc.rebuilt_segs; + + istats.tcp_str_segs_queued = pc.queued_segs - istats.tcp_str_segs_queued_total; + istats.tcp_str_segs_queued_total = pc.queued_segs; + + istats.tcp_str_mem_faults = pc.str_mem_faults - istats.tcp_str_mem_faults_total; + istats.tcp_str_mem_faults_total = pc.str_mem_faults; + } + + istats.processed = pc.total_processed - istats.processed_total; + istats.processed_total = pc.total_processed; + total = istats.processed; + + /* prepare packet type per time interval routine */ + LogMessage("================================================" + "===============================\n"); + + LogMessage("\n"); + LogMessage("Statistics Report (last %d seconds)\n", timestats_interval); + LogMessage("\n"); + + per_sec = (double)istats.recv / (double)timestats_interval; + + LogMessage("Packet Wire Totals:\n"); + LogMessage("Packets received: " FMTu64("13") "\n", istats.recv); + + if (timestats_interval >= SECONDS_PER_HOUR) + { + per_hour = (double)(istats.recv * SECONDS_PER_HOUR) / (double)timestats_interval; + LogMessage(" per hour: %13.2f\n", per_hour); + } + if (timestats_interval >= SECONDS_PER_MIN) + { + per_minute = (double)(istats.recv * SECONDS_PER_MIN) / (double)timestats_interval; + LogMessage(" per minute: %13.2f\n", per_minute); + } + LogMessage(" per second: %13.2f\n", per_sec); + LogMessage(" Packets dropped: " FMTu64("13") "\n", istats.drop); + LogMessage("\n"); + LogMessage("Packet Breakdown by Protocol (includes rebuilt packets):\n"); + + LogMessage(" TCP: " FMTu64("10") " (%.3f%%)\n", + istats.tcp, CalcPct(istats.tcp, total)); + LogMessage(" UDP: " FMTu64("10") " (%.3f%%)\n", + istats.udp, CalcPct(istats.udp, total)); + LogMessage(" ICMP: " FMTu64("10") " (%.3f%%)\n", + istats.icmp, CalcPct(istats.icmp, total)); + LogMessage(" ARP: " FMTu64("10") " (%.3f%%)\n", + istats.arp, CalcPct(istats.arp, total)); +#ifndef NO_NON_ETHER_DECODER + LogMessage(" EAPOL: " FMTu64("10") " (%.3f%%)\n", + istats.eapol, CalcPct(istats.eapol, total)); +#endif + LogMessage(" IPv6: " FMTu64("10") " (%.3f%%)\n", + istats.ipv6, CalcPct(istats.ipv6, total)); + LogMessage(" ETHLOOP: " FMTu64("10") " (%.3f%%)\n", + istats.ethloopback, CalcPct(istats.ethloopback, total)); + LogMessage(" IPX: " FMTu64("10") " (%.3f%%)\n", + istats.ipx, CalcPct(istats.ipx, total)); + +#ifdef GRE + LogMessage(" IP4/IP4: " FMTu64("-10") " (%.3f%%)\n", + istats.ip4ip4, CalcPct(istats.ip4ip4, total)); + LogMessage(" IP4/IP6: " FMTu64("-10") " (%.3f%%)\n", + istats.ip4ip6, CalcPct(istats.ip4ip6, total)); + LogMessage(" IP6/IP4: " FMTu64("-10") " (%.3f%%)\n", + istats.ip6ip4, CalcPct(istats.ip6ip4, total)); + LogMessage(" IP6/IP6: " FMTu64("-10") " (%.3f%%)\n", + istats.ip6ip6, CalcPct(istats.ip6ip6, total)); + LogMessage(" GRE: " FMTu64("10") " (%.3f%%)\n", + istats.gre, CalcPct(istats.gre, total)); + LogMessage(" GRE ETH: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_eth, CalcPct(istats.gre_eth, total)); + LogMessage("GRE VLAN: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_vlan, CalcPct(istats.gre_vlan, total)); + LogMessage(" GRE IP: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_ip, CalcPct(istats.gre_ip, total)); + LogMessage("GRE IPv6: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_ipv6, CalcPct(istats.gre_ipv6, total)); + LogMessage("GRE PPTP: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_ppp, CalcPct(istats.gre_ppp, total)); + LogMessage(" GRE ARP: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_arp, CalcPct(istats.gre_arp, total)); + LogMessage(" GRE IPX: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_ipx, CalcPct(istats.gre_ipx, total)); + LogMessage("GRE LOOP: " FMTu64("-10") " (%.3f%%)\n", + istats.gre_loopback, CalcPct(istats.gre_loopback, total)); +#endif + + LogMessage(" FRAG: " FMTu64("10") " (%.3f%%)\n", + istats.frags, CalcPct(istats.frags, total)); + LogMessage(" OTHER: " FMTu64("10") " (%.3f%%)\n", + istats.other, CalcPct(istats.other, total)); + LogMessage(" DISCARD: " FMTu64("10") " (%.3f%%)\n", + istats.discards, CalcPct(istats.discards, total)); + LogMessage(" Total: " FMTu64("10") "\n", total); + + LogMessage("\n"); + + + /* handle case where wireless is enabled... */ + +#ifndef NO_NON_ETHER_DECODER +#ifdef DLT_IEEE802_11 + if (datalink == DLT_IEEE802_11) + { + LogMessage("\n"); + LogMessage("Wireless Stats:\n\n"); + LogMessage("Management Packets: " FMTu64("10") " (%.3f%%)\n", + istats.wifi_mgmt, CalcPct(istats.wifi_mgmt, total)); + LogMessage(" Control Packets: " FMTu64("10") " (%.3f%%)\n", + istats.wifi_control, CalcPct(istats.wifi_control, total)); + LogMessage(" Data Packets: " FMTu64("10") " (%.3f%%)\n", + istats.wifi_data, CalcPct(istats.wifi_data, total)); + LogMessage("\n"); + } + +#endif /* if wireless is enabled... */ +#endif // NO_NON_ETHER_DECODER + + /* handle case where we have snort seeing fragmented packets */ + + if (pc.frags > 0) /* begin if (pc.frags > 0) */ + { + LogMessage("\n"); + LogMessage("Fragmentation Stats:\n\n"); + LogMessage("Fragmented IP Packets: " FMTu64("10") "\n", istats.frags); + LogMessage(" Fragment Trackers: " FMTu64("10") "\n", istats.frag_trackers); + LogMessage(" Rebuilt IP Packets: " FMTu64("10") "\n", istats.frag_rebuilt); + LogMessage(" Frag Elements Used: " FMTu64("10") "\n", istats.frag_element); + LogMessage("Discarded(incomplete): " FMTu64("10") "\n", istats.frag_incomp); + LogMessage(" Discarded(timeout): " FMTu64("10") "\n", istats.frag_timeout); + LogMessage(" Frag2 memory faults: " FMTu64("10") "\n", istats.frag_mem_faults); + LogMessage("\n"); + } /* end if (pc.frags > 0) */ + + /* handle TCP stream re-assy stuff here */ + + if (pc.tcp_stream_pkts > 0) + { + LogMessage("\n"); + LogMessage("TCP Stream Reassembly Stats:\n\n"); + LogMessage(" TCP Packets Used: " FMTu64("10") "\n", istats.tcp_str_packets); + LogMessage(" Stream Trackers: " FMTu64("10") "\n", istats.tcp_str_trackers); + LogMessage(" Stream Flushes: " FMTu64("10") "\n", istats.tcp_str_flushes); + LogMessage(" Stream Segments Used: " FMTu64("10") "\n", istats.tcp_str_segs_used); + LogMessage("Stream Segments Queued: " FMTu64("10") "\n", istats.tcp_str_segs_queued); + LogMessage(" Stream4 Memory Faults: " FMTu64("10") "\n", istats.tcp_str_mem_faults); + LogMessage("\n"); + } + + //mpse_print_qinfo(); + + } /* end if pcap_stats(ps, &ps) */ + + alarm(timestats_interval); /* reset the alarm to go off again */ +} + +/* print out stats on how long snort ran */ +void TimeStats(void) +{ + +/* + * variable definitions for improved statistics handling + * + * end_time = time which snort finished running (unix epoch) + * total_secs = total amount of time snort ran + * int_total_secs = used to eliminate casts from this function (temp. var) + * days = number of days snort ran + * hrs = number of hrs snort ran + * mins = number of minutes snort ran + * secs = number of seconds snort ran + * + * ival = temp. variable for integer/modulus math + * ppd = packets per day processed + * pph = packets per hour processed + * ppm = packets per minute processed + * pps = packets per second processed + * + * hflag = used to flag when hrs = zero, but days > 0 + * mflag = used to flag when min = zero, but hrs > 0 + * + */ + + time_t end_time, total_secs; + uint32_t days = 0, hrs = 0, mins = 0, secs = 0, tmp = 0; + uint64_t pps = 0, ppm = 0, pph = 0, ppd = 0; + uint32_t int_total_secs = 0; + char hflag = 0, mflag = 0; + + + end_time = time(NULL); /* grab epoch for end time value (in seconds) */ + total_secs = end_time - start_time; /* total_secs is how many seconds snort ran for */ + + tmp = (uint32_t)total_secs; + int_total_secs = tmp; /* used for cast elimination */ + + days = tmp / SECONDS_PER_DAY; /* 86400 is number of seconds in a day */ + tmp = tmp % SECONDS_PER_DAY; /* grab remainder to process hours */ + hrs = tmp / SECONDS_PER_HOUR; /* 3600 is number of seconds in a(n) hour */ + tmp = tmp % SECONDS_PER_HOUR; /* grab remainder to process minutes */ + mins = tmp / SECONDS_PER_MIN; /* 60 is number of seconds in a minute */ + secs = tmp % SECONDS_PER_MIN; /* grab remainder to process seconds */ + + if (total_secs) + pps = (pc.total_from_pcap / int_total_secs); + else + pps = pc.total_from_pcap; /* guard against division by zero */ + + /* Use ErrorMessage because this is logged whether + * or not logging quietly */ + ErrorMessage("Snort ran for %u Days %u Hours %u Minutes %u Seconds\n", + days, hrs, mins, secs); + + if (days > 0) + { + ppd = (pc.total_from_pcap / (int_total_secs / SECONDS_PER_DAY)); + ErrorMessage("Snort Analyzed " STDu64 " Packets Per Day\n", ppd); + hflag = 1; + } + + if (hrs > 0 || hflag == 1) + { + pph = (pc.total_from_pcap / (int_total_secs / SECONDS_PER_HOUR)); + ErrorMessage("Snort Analyzed " STDu64 " Packets Per Hour\n", pph); + mflag = 1; + } + + if (mins > 0 || mflag == 1) + { + ppm = (pc.total_from_pcap / (int_total_secs / SECONDS_PER_MIN)); + ErrorMessage("Snort Analyzed " STDu64 " Packets Per Minute\n", ppm); + } + + ErrorMessage("Snort Analyzed " STDu64 " Packets Per Second\n", pps); + ErrorMessage("\n"); +} +#endif /* TIMESTATS */ + + +#ifdef PCAP_CLOSE +int UpdatePcapPktStats(int cacheReturn) +#else +int UpdatePcapPktStats(void) +#endif +{ + struct pcap_stat ps; + uint32_t recv, drop; + static char not_initialized = 1; + +#ifdef PCAP_CLOSE + static int priorReturn = 0; + static int returnWasCached = 0; + + if ( !cacheReturn && returnWasCached ) + { + returnWasCached = 0; + return priorReturn; + } + priorReturn = -1; + returnWasCached = cacheReturn; +#endif + + if (not_initialized) + { + memset(&pkt_stats, 0, sizeof(PcapPktStats)); + not_initialized = 0; + } + + if ((pcap_handle == NULL) || ScReadMode()) + return -1; + + if (pcap_stats(pcap_handle, &ps) == -1) + { + pcap_perror(pcap_handle, "pcap_stats"); + return -1; + } + + recv = (uint32_t)ps.ps_recv; + drop = (uint32_t)ps.ps_drop; + +#ifdef LINUX_LIBPCAP_DOUBLES_STATS + recv /= 2; + drop /= 2; +#endif + +#ifdef LIBPCAP_ACCUMULATES + /* pcap recv wrapped */ + if (recv < pkt_stats.wrap_recv) + pkt_stats.recv += (uint64_t)UINT32_MAX; + + /* pcap drop wrapped */ + if (drop < pkt_stats.wrap_drop) + pkt_stats.drop += (uint64_t)UINT32_MAX; + + pkt_stats.wrap_recv = recv; + pkt_stats.wrap_drop = drop; +#else + pkt_stats.recv += (uint64_t)recv; + pkt_stats.drop += (uint64_t)drop; +#endif /* LIBPCAP_ACCUMULATES */ + +#ifdef PCAP_CLOSE + priorReturn = 0; +#endif + return 0; +} + +uint64_t GetPcapPktStatsRecv(void) +{ + return pkt_stats.recv + (uint64_t)pkt_stats.wrap_recv; +} + +uint64_t GetPcapPktStatsDrop(void) +{ + return pkt_stats.drop + (uint64_t)pkt_stats.wrap_drop; +} + + +#ifdef PCAP_CLOSE +/* exiting should be 0 for if not exiting, 1 if restarting, and 2 if exiting */ +#else +/* exiting should be 0 for if not exiting and 1 if exiting */ +#endif +void DropStats(int exiting) +{ + PreprocStatsFuncNode *idx; + uint64_t total = 0; + uint64_t pkts_recv; + uint64_t pkts_drop; + + total = pc.total_processed; + +#ifdef PPM_MGR + PPM_PRINT_SUMMARY(&snort_conf->ppm_cfg); +#endif + + LogMessage("================================================" + "===============================\n"); + +#ifdef TIMESTATS + TimeStats(); /* how long did snort run? */ +#endif + + if (ScReadMode() +#ifdef GIDS + || ScAdapterInlineMode() +#endif + ) + { + LogMessage("Snort processed " STDu64 " packets.\n", total); + } + else + { +#ifdef PCAP_CLOSE + if (exiting < 2 && (pcap_handle == NULL)) +#else + if (pcap_handle == NULL) +#endif + { + LogMessage("Snort received 0 packets\n"); + } + else + { +#ifdef PCAP_CLOSE + if (UpdatePcapPktStats(0) != -1) +#else + if (UpdatePcapPktStats() != -1) +#endif + { + pkts_recv = GetPcapPktStatsRecv(); + pkts_drop = GetPcapPktStatsDrop(); + + LogMessage("Packet Wire Totals:\n"); + LogMessage(" Received: " FMTu64("12") "\n", pkts_recv); + LogMessage(" Analyzed: " FMTu64("12") " (%.3f%%)\n", pc.total_from_pcap, + CalcPct(pc.total_from_pcap, pkts_recv)); + LogMessage(" Dropped: " FMTu64("12") " (%.3f%%)\n", pkts_drop, + CalcPct(pkts_drop, pkts_recv)); + LogMessage("Outstanding: " FMTu64("12") " (%.3f%%)\n", + pkts_recv - pkts_drop - pc.total_from_pcap, + CalcPct((pkts_recv - pkts_drop - pc.total_from_pcap), pkts_recv)); + } + else + { + LogMessage("Unable to calculate percentages for stats\n"); + LogMessage("Total number of packets Analyzed: " FMTu64("12") "\n", pc.total_from_pcap); + } + } + } + + LogMessage("================================================" + "===============================\n"); + + LogMessage("Breakdown by protocol (includes rebuilt packets):\n"); + + LogMessage(" ETH: " FMTu64("-10") " (%.3f%%)\n", + pc.eth, CalcPct(pc.eth, total)); + LogMessage(" ETHdisc: " FMTu64("-10") " (%.3f%%)\n", + pc.ethdisc, CalcPct(pc.ethdisc, total)); +#ifdef GIDS +#ifndef IPFW + LogMessage(" IPTables: " FMTu64("-10") " (%.3f%%)\n", + pc.iptables, CalcPct(pc.iptables, total)); +#else + LogMessage(" IPFW: " FMTu64("-10") " (%.3f%%)\n", + pc.ipfw, CalcPct(pc.ipfw, total)); +#endif /* IPFW */ +#endif /* GIDS */ + LogMessage(" VLAN: " FMTu64("-10") " (%.3f%%)\n", + pc.vlan, CalcPct(pc.vlan, total)); + + if (pc.nested_vlan != 0) + LogMessage("Nested VLAN: " FMTu64("-10") " (%.3f%%)\n", + pc.nested_vlan, CalcPct(pc.nested_vlan, total)); + + LogMessage(" IPV6: " FMTu64("-10") " (%.3f%%)\n", + pc.ipv6, CalcPct(pc.ipv6, total)); + LogMessage(" IP6 EXT: " FMTu64("-10") " (%.3f%%)\n", + pc.ip6ext, CalcPct(pc.ip6ext, total)); + LogMessage(" IP6opts: " FMTu64("-10") " (%.3f%%)\n", + pc.ipv6opts, CalcPct(pc.ipv6opts, total)); + LogMessage(" IP6disc: " FMTu64("-10") " (%.3f%%)\n", + pc.ipv6disc, CalcPct(pc.ipv6disc, total)); + + LogMessage(" IP4: " FMTu64("-10") " (%.3f%%)\n", + pc.ip, CalcPct(pc.ip, total)); + LogMessage(" IP4disc: " FMTu64("-10") " (%.3f%%)\n", + pc.ipdisc, CalcPct(pc.ipdisc, total)); + + LogMessage(" TCP 6: " FMTu64("-10") " (%.3f%%)\n", + pc.tcp6, CalcPct(pc.tcp6, total)); + LogMessage(" UDP 6: " FMTu64("-10") " (%.3f%%)\n", + pc.udp6, CalcPct(pc.udp6, total)); + LogMessage(" ICMP6: " FMTu64("-10") " (%.3f%%)\n", + pc.icmp6, CalcPct(pc.icmp6, total)); + LogMessage(" ICMP-IP: " FMTu64("-10") " (%.3f%%)\n", + pc.embdip, CalcPct(pc.embdip, total)); + + LogMessage(" TCP: " FMTu64("-10") " (%.3f%%)\n", + pc.tcp, CalcPct(pc.tcp, total)); + LogMessage(" UDP: " FMTu64("-10") " (%.3f%%)\n", + pc.udp, CalcPct(pc.udp, total)); + LogMessage(" ICMP: " FMTu64("-10") " (%.3f%%)\n", + pc.icmp, CalcPct(pc.icmp, total)); + + LogMessage(" TCPdisc: " FMTu64("-10") " (%.3f%%)\n", + pc.tdisc, CalcPct(pc.tdisc, total)); + LogMessage(" UDPdisc: " FMTu64("-10") " (%.3f%%)\n", + pc.udisc, CalcPct(pc.udisc, total)); + LogMessage(" ICMPdis: " FMTu64("-10") " (%.3f%%)\n", + pc.icmpdisc, CalcPct(pc.icmpdisc, total)); + + LogMessage(" FRAG: " FMTu64("-10") " (%.3f%%)\n", + pc.frags, CalcPct(pc.frags, total)); + LogMessage(" FRAG 6: " FMTu64("-10") " (%.3f%%)\n", + pc.frag6, CalcPct(pc.frag6, total)); + + LogMessage(" ARP: " FMTu64("-10") " (%.3f%%)\n", + pc.arp, CalcPct(pc.arp, total)); +#ifndef NO_NON_ETHER_DECODER + LogMessage(" EAPOL: " FMTu64("-10") " (%.3f%%)\n", + pc.eapol, CalcPct(pc.eapol, total)); +#endif + LogMessage(" ETHLOOP: " FMTu64("-10") " (%.3f%%)\n", + pc.ethloopback, CalcPct(pc.ethloopback, total)); + LogMessage(" IPX: " FMTu64("-10") " (%.3f%%)\n", + pc.ipx, CalcPct(pc.ipx, total)); +#ifdef GRE + LogMessage("IPv4/IPv4: " FMTu64("-10") " (%.3f%%)\n", + pc.ip4ip4, CalcPct(pc.ip4ip4, total)); + LogMessage("IPv4/IPv6: " FMTu64("-10") " (%.3f%%)\n", + pc.ip4ip6, CalcPct(pc.ip4ip6, total)); + LogMessage("IPv6/IPv4: " FMTu64("-10") " (%.3f%%)\n", + pc.ip6ip4, CalcPct(pc.ip6ip4, total)); + LogMessage("IPv6/IPv6: " FMTu64("-10") " (%.3f%%)\n", + pc.ip6ip6, CalcPct(pc.ip6ip6, total)); + LogMessage(" GRE: " FMTu64("-10") " (%.3f%%)\n", + pc.gre, CalcPct(pc.gre, total)); + LogMessage(" GRE ETH: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_eth, CalcPct(pc.gre_eth, total)); + LogMessage(" GRE VLAN: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_vlan, CalcPct(pc.gre_vlan, total)); + LogMessage(" GRE IPv4: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_ip, CalcPct(pc.gre_ip, total)); + LogMessage(" GRE IPv6: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_ipv6, CalcPct(pc.gre_ipv6, total)); + LogMessage("GRE IP6 E: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_ipv6ext, CalcPct(pc.gre_ipv6ext, total)); + LogMessage(" GRE PPTP: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_ppp, CalcPct(pc.gre_ppp, total)); + LogMessage(" GRE ARP: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_arp, CalcPct(pc.gre_arp, total)); + LogMessage(" GRE IPX: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_ipx, CalcPct(pc.gre_ipx, total)); + LogMessage(" GRE LOOP: " FMTu64("-10") " (%.3f%%)\n", + pc.gre_loopback, CalcPct(pc.gre_loopback, total)); +#endif /* GRE */ +#ifdef MPLS + LogMessage(" MPLS: " FMTu64("-10") " (%.3f%%)\n", + pc.mpls, CalcPct(pc.mpls, total)); +#endif + LogMessage(" OTHER: " FMTu64("-10") " (%.3f%%)\n", + pc.other, CalcPct(pc.other, total)); + LogMessage(" DISCARD: " FMTu64("-10") " (%.3f%%)\n", + pc.discards, CalcPct(pc.discards, total)); + LogMessage("InvChkSum: " FMTu64("-10") " (%.3f%%)\n", + pc.invalid_checksums, CalcPct(pc.invalid_checksums, total)); + + LogMessage(" S5 G 1: " FMTu64("-10") " (%.3f%%)\n", + pc.s5tcp1, CalcPct(pc.s5tcp1, total)); + LogMessage(" S5 G 2: " FMTu64("-10") " (%.3f%%)\n", + pc.s5tcp2, CalcPct(pc.s5tcp2, total)); + + LogMessage(" Total: " FMTu64("-10") "\n", total); + + LogMessage("================================================" + "===============================\n"); + + LogMessage("Action Stats:\n"); + LogMessage("ALERTS: " STDu64 "\n", pc.alert_pkts); + LogMessage("LOGGED: " STDu64 "\n", pc.log_pkts); + LogMessage("PASSED: " STDu64 "\n", pc.pass_pkts); + +#ifdef TARGET_BASED + if (ScIdsMode() && IsAdaptiveConfigured(getDefaultPolicy(), 0)) + { + LogMessage("================================================" + "===============================\n"); + LogMessage("Attribute Table Stats:\n"); + LogMessage(" Number Entries: %u\n", SFAT_NumberOfHosts()); + LogMessage(" Table Reloaded: " STDu64 "\n", pc.attribute_table_reloads); + } +#endif /* TARGET_BASED */ + + //mpse_print_qinfo(); + +#ifndef NO_NON_ETHER_DECODER +#ifdef DLT_IEEE802_11 + if(datalink == DLT_IEEE802_11) + { + LogMessage("================================================" + "===============================\n"); + LogMessage("Wireless Stats:\n"); + LogMessage("Breakdown by type:\n"); + LogMessage(" Management Packets: " FMTu64("-10") " (%.3f%%)\n", + pc.wifi_mgmt, CalcPct(pc.wifi_mgmt, total)); + LogMessage(" Control Packets: " FMTu64("-10") " (%.3f%%)\n", + pc.wifi_control, CalcPct(pc.wifi_control, total)); + LogMessage(" Data Packets: " FMTu64("-10") " (%.3f%%)\n", + pc.wifi_data, CalcPct(pc.wifi_data, total)); + } +#endif /* DLT_IEEE802_11 */ +#endif // NO_NON_ETHER_DECODER + + for (idx = preproc_stats_funcs; idx != NULL; idx = idx->next) + { + LogMessage("==============================================" + "=================================\n"); + +#ifdef PCAP_CLOSE + idx->func(exiting ? 1 : 0); +#else + idx->func(exiting); +#endif + } + + LogMessage("==============================================" + "=================================\n"); + + return; +} + +/**************************************************************************** + * + * Function: CleanupProtoNames() + * + * Purpose: Frees the protocol names + * + * Arguments: None. + * + * Returns: void function + * + ****************************************************************************/ +void CleanupProtoNames(void) +{ + int i; + + for(i = 0; i < 256; i++) + { + if( protocol_names[i] != NULL ) + { + free( protocol_names[i] ); + protocol_names[i] = NULL; + } + } +} + +/**************************************************************************** + * + * Function: read_infile(char *) + * + * Purpose: Reads the BPF filters in from a file. Ripped from tcpdump. + * + * Arguments: fname => the name of the file containing the BPF filters + * + * Returns: the processed BPF string + * + ****************************************************************************/ +char *read_infile(char *fname) +{ + register int fd, cc; + register char *cp, *cmt; + struct stat buf; + + fd = open(fname, O_RDONLY); + + if(fd < 0) + FatalError("can't open %s: %s\n", fname, pcap_strerror(errno)); + + if(fstat(fd, &buf) < 0) + FatalError("can't stat %s: %s\n", fname, pcap_strerror(errno)); + + cp = (char *)SnortAlloc(((u_int)buf.st_size + 1) * sizeof(char)); + + cc = read(fd, cp, (int) buf.st_size); + + if(cc < 0) + FatalError("read %s: %s\n", fname, pcap_strerror(errno)); + + if(cc != buf.st_size) + FatalError("short read %s (%d != %d)\n", fname, cc, (int) buf.st_size); + + cp[(int) buf.st_size] = '\0'; + + close(fd); + + /* Treat everything upto the end of the line as a space + * so that we can put comments in our BPF filters + */ + + while((cmt = strchr(cp, '#')) != NULL) + { + while (*cmt != '\r' && *cmt != '\n' && *cmt != '\0') + { + *cmt++ = ' '; + } + } + + /** LogMessage("BPF filter file: %s\n", fname); **/ + + return(cp); +} + + + /**************************************************************************** + * + * Function: CheckLogDir() + * + * Purpose: CyberPsychotic sez: basically we only check if logdir exist and + * writable, since it might screw the whole thing in the middle. Any + * other checks could be performed here as well. + * + * Arguments: None. + * + * Returns: void function + * + ****************************************************************************/ +void CheckLogDir(void) +{ + struct stat st; + + if (snort_conf->log_dir == NULL) + return; + + if (stat(snort_conf->log_dir, &st) == -1) + FatalError("Stat check on log dir failed: %s.\n", strerror(errno)); + + if (!S_ISDIR(st.st_mode) || (access(snort_conf->log_dir, W_OK) == -1)) + { + FatalError("Can not get write access to logging directory \"%s\". " + "(directory doesn't exist or permissions are set incorrectly " + "or it is not a directory at all)\n", + snort_conf->log_dir); + } +} + +/* Signal handler for child process signaling the parent + * that is is ready */ +static int parent_wait = 1; +static void SigChildReadyHandler(int signal) +{ +#ifdef DEBUG + LogMessage("Received Signal from Child\n"); +#endif + parent_wait = 0; +} + +/**************************************************************************** + * + * Function: GoDaemon() + * + * Purpose: Puts the program into daemon mode, nice and quiet like.... + * + * Arguments: None. + * + * Returns: void function + * + ****************************************************************************/ +void GoDaemon(void) +{ +#ifndef WIN32 + int exit_val = 0; + pid_t fs; + + LogMessage("Initializing daemon mode\n"); + + if (ScDaemonRestart()) + return; + + /* Don't daemonize if we've already daemonized and + * received a SIGHUP. */ + if(getppid() != 1) + { + /* Register signal handler that parent can trap signal */ + signal(SIGNAL_SNORT_CHILD_READY, SigChildReadyHandler); + if (errno != 0) errno=0; + + /* now fork the child */ + fs = fork(); + + if(fs > 0) + { + /* Parent */ + + /* Don't exit quite yet. Wait for the child + * to signal that is there and created the PID + * file. + */ + while (parent_wait) + { + /* Continue waiting until receiving signal from child */ + int status; + if (waitpid(fs, &status, WNOHANG) == fs) + { + /* If the child is gone, parent should go away, too */ + if (WIFEXITED(status)) + { + LogMessage("Child exited unexpectedly\n"); + exit_val = -1; + break; + } + + if (WIFSIGNALED(status)) + { + LogMessage("Child terminated unexpectedly\n"); + exit_val = -2; + break; + } + } +#ifdef DEBUG + LogMessage("Parent waiting for child...\n"); +#endif + + sleep(1); + } + + LogMessage("Daemon parent exiting\n"); + + exit(exit_val); /* parent */ + } + + if(fs < 0) + { + /* Daemonizing failed... */ + perror("fork"); + exit(1); + } + + /* Child */ + setsid(); + } + + close(0); + close(1); + close(2); + +#ifdef DEBUG + /* redirect stdin/stdout/stderr to a file */ + open("/tmp/snort.debug", O_CREAT | O_RDWR); /* stdin, fd 0 */ + + /* Change ownership to that which we will drop privileges to */ + if ((snort_conf->user_id != -1) || (snort_conf->group_id != -1)) + { + uid_t user_id = getuid(); + gid_t group_id = getgid(); + + if (snort_conf->user_id != -1) + user_id = snort_conf->user_id; + if (snort_conf->group_id != -1) + group_id = snort_conf->group_id; + + chown("/tmp/snort.debug", user_id, group_id); + } +#else + /* redirect stdin/stdout/stderr to /dev/null */ + (void)open("/dev/null", O_RDWR); /* stdin, fd 0 */ +#endif + + dup(0); /* stdout, fd 0 => fd 1 */ + dup(0); /* stderr, fd 0 => fd 2 */ + + SignalWaitingParent(); + +#endif /* ! WIN32 */ +} + +/* Signal the parent that child is ready */ +void SignalWaitingParent(void) +{ +#ifndef WIN32 + pid_t parentpid = getppid(); +#ifdef DEBUG + LogMessage("Signaling parent %d from child %d\n", parentpid, getpid()); +#endif + + if (kill(parentpid, SIGNAL_SNORT_CHILD_READY)) + { + LogMessage("Daemon initialized, failed to signal parent pid: %d, failure: %d, %s\n", parentpid, errno, strerror(errno)); + } + else + { + LogMessage("Daemon initialized, signaled parent pid: %d\n", parentpid); + } +#endif +} + +/* This function has been moved into mstring.c, since that +* is where the allocation actually occurs. It has been +* renamed to mSplitFree(). +* +void FreeToks(char **toks, int num_toks) +{ + if (toks) + { + if (num_toks > 0) + { + do + { + num_toks--; + free(toks[num_toks]); + } while(num_toks); + } + free(toks); + } +} +*/ + + +/* Self preserving memory allocator */ +void *SPAlloc(unsigned long size, struct _SPMemControl *spmc) +{ + void *tmp; + + spmc->mem_usage += size; + + if(spmc->mem_usage > spmc->memcap) + { + spmc->sp_func(spmc); + } + + tmp = (void *) calloc(size, sizeof(char)); + + if(tmp == NULL) + { + FatalError("Unable to allocate memory! (%lu requested, %lu in use)\n", + size, spmc->mem_usage); + } + + return tmp; +} + +/* Guaranteed to be '\0' terminated even if truncation occurs. + * + * returns SNORT_SNPRINTF_SUCCESS if successful + * returns SNORT_SNPRINTF_TRUNCATION on truncation + * returns SNORT_SNPRINTF_ERROR on error + */ +int SnortSnprintf(char *buf, size_t buf_size, const char *format, ...) +{ + va_list ap; + int ret; + + if (buf == NULL || buf_size <= 0 || format == NULL) + return SNORT_SNPRINTF_ERROR; + + /* zero first byte in case an error occurs with + * vsnprintf, so buffer is null terminated with + * zero length */ + buf[0] = '\0'; + buf[buf_size - 1] = '\0'; + + va_start(ap, format); + + ret = vsnprintf(buf, buf_size, format, ap); + + va_end(ap); + + if (ret < 0) + return SNORT_SNPRINTF_ERROR; + + if (buf[buf_size - 1] != '\0' || (size_t)ret >= buf_size) + { + /* result was truncated */ + buf[buf_size - 1] = '\0'; + return SNORT_SNPRINTF_TRUNCATION; + } + + return SNORT_SNPRINTF_SUCCESS; +} + +/* Appends to a given string + * Guaranteed to be '\0' terminated even if truncation occurs. + * + * returns SNORT_SNPRINTF_SUCCESS if successful + * returns SNORT_SNPRINTF_TRUNCATION on truncation + * returns SNORT_SNPRINTF_ERROR on error + */ +int SnortSnprintfAppend(char *buf, size_t buf_size, const char *format, ...) +{ + int str_len; + int ret; + va_list ap; + + if (buf == NULL || buf_size <= 0 || format == NULL) + return SNORT_SNPRINTF_ERROR; + + str_len = SnortStrnlen(buf, buf_size); + + /* since we've already checked buf and buf_size an error + * indicates no null termination, so just start at + * beginning of buffer */ + if (str_len == SNORT_STRNLEN_ERROR) + { + buf[0] = '\0'; + str_len = 0; + } + + buf[buf_size - 1] = '\0'; + + va_start(ap, format); + + ret = vsnprintf(buf + str_len, buf_size - (size_t)str_len, format, ap); + + va_end(ap); + + if (ret < 0) + return SNORT_SNPRINTF_ERROR; + + if (buf[buf_size - 1] != '\0' || (size_t)ret >= buf_size) + { + /* truncation occured */ + buf[buf_size - 1] = '\0'; + return SNORT_SNPRINTF_TRUNCATION; + } + + return SNORT_SNPRINTF_SUCCESS; +} + +/* Guaranteed to be '\0' terminated even if truncation occurs. + * + * Arguments: dst - the string to contain the copy + * src - the string to copy from + * dst_size - the size of the destination buffer + * including the null byte. + * + * returns SNORT_STRNCPY_SUCCESS if successful + * returns SNORT_STRNCPY_TRUNCATION on truncation + * returns SNORT_STRNCPY_ERROR on error + * + * Note: Do not set dst[0] = '\0' on error since it's possible that + * dst and src are the same pointer - it will at least be null + * terminated in any case + */ +int SnortStrncpy(char *dst, const char *src, size_t dst_size) +{ + char *ret = NULL; + + if (dst == NULL || src == NULL || dst_size <= 0) + return SNORT_STRNCPY_ERROR; + + dst[dst_size - 1] = '\0'; + + ret = strncpy(dst, src, dst_size); + + /* Not sure if this ever happens but might as + * well be on the safe side */ + if (ret == NULL) + return SNORT_STRNCPY_ERROR; + + if (dst[dst_size - 1] != '\0') + { + /* result was truncated */ + dst[dst_size - 1] = '\0'; + return SNORT_STRNCPY_TRUNCATION; + } + + return SNORT_STRNCPY_SUCCESS; +} + +char *SnortStrndup(const char *src, size_t dst_size) +{ + char *ret = SnortAlloc(dst_size + 1); + int ret_val; + + ret_val = SnortStrncpy(ret, src, dst_size + 1); + + if(ret_val == SNORT_STRNCPY_ERROR) + { + free(ret); + return NULL; + } + + return ret; +} + +/* Determines whether a buffer is '\0' terminated and returns the + * string length if so + * + * returns the string length if '\0' terminated + * returns SNORT_STRNLEN_ERROR if not '\0' terminated + */ +int SnortStrnlen(const char *buf, int buf_size) +{ + int i = 0; + + if (buf == NULL || buf_size <= 0) + return SNORT_STRNLEN_ERROR; + + for (i = 0; i < buf_size; i++) + { + if (buf[i] == '\0') + break; + } + + if (i == buf_size) + return SNORT_STRNLEN_ERROR; + + return i; +} + +char * SnortStrdup(const char *str) +{ + char *copy = NULL; + + if (!str) + { + FatalError("Unable to duplicate string: NULL!\n"); + } + + copy = strdup(str); + + if (copy == NULL) + { + FatalError("Unable to duplicate string: %s!\n", str); + } + + return copy; +} + +/* + * Find first occurrence of char of accept in s, limited by slen. + * A 'safe' version of strpbrk that won't read past end of buffer s + * in cases that s is not NULL terminated. + * + * This code assumes 'accept' is a static string. + */ +const char *SnortStrnPbrk(const char *s, int slen, const char *accept) +{ + char ch; + const char *s_end; + if (!s || !*s || !accept || slen == 0) + return NULL; + + s_end = s + slen; + while (s < s_end) + { + ch = *s; + if (strchr(accept, ch)) + return s; + s++; + } + return NULL; +} + +/* + * Find first occurrence of searchstr in s, limited by slen. + * A 'safe' version of strstr that won't read past end of buffer s + * in cases that s is not NULL terminated. + */ +const char *SnortStrnStr(const char *s, int slen, const char *searchstr) +{ + char ch, nc; + int len; + if (!s || !*s || !searchstr || slen == 0) + return NULL; + + if ((ch = *searchstr++) != 0) + { + len = strlen(searchstr); + do + { + do + { + if ((nc = *s++) == 0) + { + return NULL; + } + slen--; + if (slen == 0) + return NULL; + } while (nc != ch); + if (slen - len < 0) + return NULL; + } while (memcmp(s, searchstr, len) != 0); + s--; + slen++; + } + return s; +} + +/* + * Find first occurrence of substring in s, ignore case. +*/ +const char *SnortStrcasestr(const char *s, const char *substr) +{ + char ch, nc; + int len; + + if (!s || !*s || !substr) + return NULL; + + if ((ch = *substr++) != 0) + { + ch = tolower((char)ch); + len = strlen(substr); + do + { + do + { + if ((nc = *s++) == 0) + { + return NULL; + } + } while ((char)tolower((uint8_t)nc) != ch); + } while (strncasecmp(s, substr, len) != 0); + s--; + } + return s; +} + +void *SnortAlloc(unsigned long size) +{ + void *tmp; + + tmp = (void *) calloc(size, sizeof(char)); + + if(tmp == NULL) + { + FatalError("Unable to allocate memory! (%lu requested)\n", size); + } + + return tmp; +} + +void * SnortAlloc2(size_t size, const char *format, ...) +{ + void *tmp; + + tmp = (void *)calloc(size, sizeof(char)); + + if(tmp == NULL) + { + va_list ap; + char buf[STD_BUF]; + + buf[STD_BUF - 1] = '\0'; + + va_start(ap, format); + + vsnprintf(buf, STD_BUF - 1, format, ap); + + va_end(ap); + + FatalError("%s", buf); + } + + return tmp; +} + +/** + * Chroot and adjust the snort_conf->log_dir reference + * + * @param directory directory to chroot to + * @param logstore ptr to snort_conf->log_dir which must be dynamically allocated + */ +void SetChroot(char *directory, char **logstore) +{ +#ifdef WIN32 + FatalError("SetChroot() should not be called under Win32!\n"); +#else + char *absdir; + size_t abslen; + char *logdir; + + if(!directory || !logstore) + { + FatalError("Null parameter passed\n"); + } + + logdir = *logstore; + + if(logdir == NULL || *logdir == '\0') + { + FatalError("Null log directory\n"); + } + + DEBUG_WRAP(DebugMessage(DEBUG_INIT,"SetChroot: %s\n", + CurrentWorkingDir());); + + logdir = GetAbsolutePath(logdir); + + DEBUG_WRAP(DebugMessage(DEBUG_INIT, "SetChroot: %s\n", + CurrentWorkingDir())); + + logdir = SnortStrdup(logdir); + + /* We're going to reset logstore, so free it now */ + free(*logstore); + *logstore = NULL; + + /* change to the directory */ + if(chdir(directory) != 0) + { + FatalError("SetChroot: Can not chdir to \"%s\": %s\n", directory, + strerror(errno)); + } + + /* always returns an absolute pathname */ + absdir = CurrentWorkingDir(); + + if(absdir == NULL) + { + FatalError("NULL Chroot found\n"); + } + + abslen = strlen(absdir); + + DEBUG_WRAP(DebugMessage(DEBUG_INIT, "ABS: %s %d\n", absdir, abslen);); + + /* make the chroot call */ + if(chroot(absdir) < 0) + { + FatalError("Can not chroot to \"%s\": absolute: %s: %s\n", + directory, absdir, strerror(errno)); + } + + DEBUG_WRAP(DebugMessage(DEBUG_INIT,"chroot success (%s ->", absdir);); + DEBUG_WRAP(DebugMessage(DEBUG_INIT,"%s)\n ", CurrentWorkingDir());); + + /* change to "/" in the new directory */ + if(chdir("/") < 0) + { + FatalError("Can not chdir to \"/\" after chroot: %s\n", + strerror(errno)); + } + + DEBUG_WRAP(DebugMessage(DEBUG_INIT,"chdir success (%s)\n", + CurrentWorkingDir());); + + + if(strncmp(absdir, logdir, strlen(absdir))) + { + FatalError("Absdir is not a subset of the logdir"); + } + + if(abslen >= strlen(logdir)) + { + *logstore = SnortStrdup("/"); + } + else + { + *logstore = SnortStrdup(logdir + abslen); + } + + DEBUG_WRAP(DebugMessage(DEBUG_INIT,"new logdir from %s to %s\n", + logdir, *logstore)); + + LogMessage("Chroot directory = %s\n", directory); + +#if 0 + /* XXX XXX */ + /* install the I can't do this signal handler */ + signal(SIGHUP, SigCantHupHandler); +#endif +#endif /* !WIN32 */ +} + + +/** + * Return a ptr to the absolute pathname of snort. This memory must + * be copied to another region if you wish to save it for later use. + */ +char *CurrentWorkingDir(void) +{ + static char buf[PATH_MAX_UTIL + 1]; + + if(getcwd((char *) buf, PATH_MAX_UTIL) == NULL) + { + return NULL; + } + + buf[PATH_MAX_UTIL] = '\0'; + + return (char *) buf; +} + +/** + * Given a directory name, return a ptr to a static + */ +char *GetAbsolutePath(char *dir) +{ + char *savedir, *dirp; + static char buf[PATH_MAX_UTIL + 1]; + + if(dir == NULL) + { + return NULL; + } + + savedir = strdup(CurrentWorkingDir()); + + if(savedir == NULL) + { + return NULL; + } + + if(chdir(dir) < 0) + { + LogMessage("Can't change to directory: %s\n", dir); + free(savedir); + return NULL; + } + + dirp = CurrentWorkingDir(); + + if(dirp == NULL) + { + LogMessage("Unable to access current directory\n"); + free(savedir); + return NULL; + } + else + { + strncpy(buf, dirp, PATH_MAX_UTIL); + buf[PATH_MAX_UTIL] = '\0'; + } + + if(chdir(savedir) < 0) + { + LogMessage("Can't change back to directory: %s\n", dir); + free(savedir); + return NULL; + } + + free(savedir); + return (char *) buf; +} + + +#ifndef WIN32 +/* very slow sort - do not use at runtime! */ +SF_LIST * SortDirectory(const char *path) +{ + SF_LIST *dir_entries; + DIR *dir; + struct dirent *direntry; + int ret = 0; + + if (path == NULL) + return NULL; + + dir_entries = sflist_new(); + if (dir_entries == NULL) + { + ErrorMessage("Could not allocate new list for directory entries\n"); + return NULL; + } + + dir = opendir(path); + if (dir == NULL) + { + ErrorMessage("Error opening directory: %s: %s\n", + path, strerror(errno)); + sflist_free_all(dir_entries, free); + return NULL; + } + + /* Reset errno since we'll be checking it unconditionally */ + errno = 0; + + while ((direntry = readdir(dir)) != NULL) + { + char *node_entry_name, *dir_entry_name; + SF_LNODE *node; + + dir_entry_name = SnortStrdup(direntry->d_name); + + for (node = sflist_first_node(dir_entries); + node != NULL; + node = sflist_next_node(dir_entries)) + { + node_entry_name = (char *)node->ndata; + if (strcmp(dir_entry_name, node_entry_name) < 0) + break; + } + + if (node == NULL) + ret = sflist_add_tail(dir_entries, (NODE_DATA)dir_entry_name); + else + ret = sflist_add_before(dir_entries, node, (NODE_DATA)dir_entry_name); + + if (ret == -1) + { + ErrorMessage("Error adding directory entry to list\n"); + sflist_free_all(dir_entries, free); + closedir(dir); + return NULL; + } + } + + if (errno != 0) + { + ErrorMessage("Error reading directory: %s: %s\n", + path, strerror(errno)); + errno = 0; + sflist_free_all(dir_entries, free); + closedir(dir); + return NULL; + } + + closedir(dir); + + return dir_entries; +} + +int GetFilesUnderDir(const char *path, SF_QUEUE *dir_queue, const char *filter) +{ + SF_LIST *dir_entries; + char *direntry; + int ret = 0; + int num_files = 0; + + if ((path == NULL) || (dir_queue == NULL)) + return -1; + + dir_entries = SortDirectory(path); + if (dir_entries == NULL) + { + ErrorMessage("Error sorting entries in directory: %s\n", path); + return -1; + } + + for (direntry = (char *)sflist_first(dir_entries); + direntry != NULL; + direntry = (char *)sflist_next(dir_entries)) + { + char path_buf[PATH_MAX]; + struct stat file_stat; + + /* Don't look at dot files */ + if (strncmp(".", direntry, 1) == 0) + continue; + + ret = SnortSnprintf(path_buf, PATH_MAX, "%s%s%s", + path, path[strlen(path) - 1] == '/' ? "" : "/", direntry); + if (ret == SNORT_SNPRINTF_TRUNCATION) + { + ErrorMessage("Error copying file to buffer: Path too long\n"); + sflist_free_all(dir_entries, free); + return -1; + } + else if (ret != SNORT_SNPRINTF_SUCCESS) + { + ErrorMessage("Error copying file to buffer\n"); + sflist_free_all(dir_entries, free); + return -1; + } + + ret = stat(path_buf, &file_stat); + if (ret == -1) + { + ErrorMessage("Could not stat file: %s: %s\n", + path_buf, strerror(errno)); + sflist_free_all(dir_entries, free); + return -1; + } + + if (file_stat.st_mode & S_IFDIR) + { + ret = GetFilesUnderDir(path_buf, dir_queue, filter); + if (ret == -1) + { + sflist_free_all(dir_entries, free); + return -1; + } + + num_files += ret; + } + else if (file_stat.st_mode & S_IFREG) + { + if ((filter == NULL) || (fnmatch(filter, direntry, 0) == 0)) + { + char *file = SnortStrdup(path_buf); + + ret = sfqueue_add(dir_queue, (NODE_DATA)file); + if (ret == -1) + { + ErrorMessage("Could not append item to list: %s\n", file); + free(file); + sflist_free_all(dir_entries, free); + return -1; + } + + num_files++; + } + } + } + + sflist_free_all(dir_entries, free); + + return num_files; +} +#endif + +/**************************************************************************** + * + * Function: GetUniqueName(char * iface) + * + * Purpose: To return a string that has a high probability of being unique + * for a given sensor. + * + * Arguments: char * iface - The network interface you are sniffing + * + * Returns: A char * -- its a static char * so you should not free it + * + ***************************************************************************/ +char *GetUniqueName(char * iface) +{ + char * rptr; + static char uniq_name[256]; + + if (iface == NULL) LogMessage("Interface is NULL. Name may not be unique for the host\n"); +#ifndef WIN32 + rptr = GetIP(iface); + if(rptr == NULL || !strcmp(rptr, "unknown")) +#endif + { + SnortSnprintf(uniq_name, 255, "%s:%s\n",GetHostname(),iface); + rptr = uniq_name; + } + if (ScLogVerbose()) LogMessage("Node unique name is: %s\n", rptr); + return rptr; +} + +/**************************************************************************** + * + * Function: GetIP(char * iface) + * + * Purpose: To return a string representing the IP address for an interface + * + * Arguments: char * iface - The network interface you want to find an IP + * address for. + * + * Returns: A char * -- make sure you call free on this when you are done + * with it. + * + ***************************************************************************/ +char *GetIP(char * iface) +{ + struct ifreq ifr; + struct sockaddr_in *addr; + int s; +#ifdef SUP_IP6 + sfip_t ret; +#endif + + if(iface) + { + /* Set up a dummy socket just so we can use ioctl to find the + ip address of the interface */ + s = socket(PF_INET, SOCK_DGRAM, 0); + if(s == -1) + { + FatalError("Problem establishing socket to find IP address for interface: %s\n", iface); + } + + SnortStrncpy(ifr.ifr_name, iface, strlen(iface) + 1); + +#ifndef WIN32 + if(ioctl(s, SIOCGIFADDR, &ifr) < 0) return NULL; + else +#endif + { + addr = (struct sockaddr_in *) &ifr.ifr_broadaddr; + } + close(s); + +#ifdef SUP_IP6 +// XXX-IPv6 uses ioctl to populate a sockaddr_in structure ... but what if the interface only has an IPv6 address? + sfip_set_raw(&ret, addr, AF_INET); + return SnortStrdup(sfip_ntoa(&ret)); +#else + return SnortStrdup(inet_ntoa(addr->sin_addr)); +#endif + } + else + { + return "unknown"; + } +} + +/**************************************************************************** + * + * Function: GetHostname() + * + * Purpose: To return a string representing the hostname + * + * Arguments: None + * + * Returns: A static char * representing the hostname. + * + ***************************************************************************/ +char *GetHostname(void) +{ +#ifdef WIN32 + DWORD bufflen = 256; + static char buff[256]; + GetComputerName(buff, &bufflen); + return buff; +#else + char * error = "unknown"; + if(getenv("HOSTNAME")) return getenv("HOSTNAME"); + else if(getenv("HOST")) return getenv("HOST"); + else return error; +#endif +} + +/**************************************************************************** + * + * Function: GetTimestamp(register const struct timeval *tvp, int tz) + * + * Purpose: Get an ISO-8601 formatted timestamp for tvp within the tz + * timezone. + * + * Arguments: tvp is a timeval pointer. tz is a timezone. + * + * Returns: char * -- You must free this char * when you are done with it. + * + ***************************************************************************/ +char *GetTimestamp(register const struct timeval *tvp, int tz) +{ + struct tm *lt; /* localtime */ + char * buf; + int msec; + + buf = (char *)SnortAlloc(SMALLBUFFER * sizeof(char)); + + msec = tvp->tv_usec / 1000; + + if (ScOutputUseUtc()) + { + lt = gmtime((time_t *)&tvp->tv_sec); + SnortSnprintf(buf, SMALLBUFFER, "%04i-%02i-%02i %02i:%02i:%02i.%03i", + 1900 + lt->tm_year, lt->tm_mon + 1, lt->tm_mday, + lt->tm_hour, lt->tm_min, lt->tm_sec, msec); + } + else + { + lt = localtime((time_t *)&tvp->tv_sec); + SnortSnprintf(buf, SMALLBUFFER, + "%04i-%02i-%02i %02i:%02i:%02i.%03i+%03i", + 1900 + lt->tm_year, lt->tm_mon + 1, lt->tm_mday, + lt->tm_hour, lt->tm_min, lt->tm_sec, msec, tz); + } + + return buf; +} + +/**************************************************************************** + * + * Function: GetLocalTimezone() + * + * Purpose: Find the offset from GMT for current host + * + * Arguments: none + * + * Returns: int representing the offset from GMT + * + ***************************************************************************/ +int GetLocalTimezone(void) +{ + time_t ut; + struct tm * ltm; + long seconds_away_from_utc; + + time(&ut); + ltm = localtime(&ut); + +#if defined(WIN32) || defined(SOLARIS) || defined(AIX) || defined(HPUX) + /* localtime() sets the global timezone variable, + which is defined in <time.h> */ + seconds_away_from_utc = timezone; +#else + seconds_away_from_utc = ltm->tm_gmtoff; +#endif + + return seconds_away_from_utc/3600; +} + +/**************************************************************************** + * + * Function: GetCurrentTimestamp() + * + * Purpose: Generate an ISO-8601 formatted timestamp for the current time. + * + * Arguments: none + * + * Returns: char * -- You must free this char * when you are done with it. + * + ***************************************************************************/ +char *GetCurrentTimestamp(void) +{ + struct tm *lt; + struct timezone tz; + struct timeval tv; + struct timeval *tvp; + char * buf; + int tzone; + int msec; + + buf = (char *)SnortAlloc(SMALLBUFFER * sizeof(char)); + + bzero((char *)&tz,sizeof(tz)); + gettimeofday(&tv,&tz); + tvp = &tv; + + msec = tvp->tv_usec/1000; + + if (ScOutputUseUtc()) + { + lt = gmtime((time_t *)&tvp->tv_sec); + SnortSnprintf(buf, SMALLBUFFER, "%04i-%02i-%02i %02i:%02i:%02i.%03i", + 1900 + lt->tm_year, lt->tm_mon + 1, lt->tm_mday, + lt->tm_hour, lt->tm_min, lt->tm_sec, msec); + } + else + { + lt = localtime((time_t *)&tvp->tv_sec); + + tzone = GetLocalTimezone(); + + SnortSnprintf(buf, SMALLBUFFER, + "%04i-%02i-%02i %02i:%02i:%02i.%03i+%03i", + 1900 + lt->tm_year, lt->tm_mon + 1, lt->tm_mday, + lt->tm_hour, lt->tm_min, lt->tm_sec, msec, tzone); + } + + return buf; +} + +/**************************************************************************** + * Function: base64(char * xdata, int length) + * + * Purpose: Insert data into the database + * + * Arguments: xdata => pointer to data to base64 encode + * length => how much data to encode + * + * Make sure you allocate memory for the output before you pass + * the output pointer into this function. You should allocate + * (1.5 * length) bytes to be safe. + * + * Returns: data base64 encoded as a char * + * + ***************************************************************************/ +char * base64(const u_char * xdata, int length) +{ + int count, cols, bits, c, char_count; + unsigned char alpha[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; /* 64 bytes */ + char * payloadptr; + char * output; + char_count = 0; + bits = 0; + cols = 0; + + output = (char *)SnortAlloc( ((unsigned int) (length * 1.5 + 4)) * sizeof(char) ); + + payloadptr = output; + + for(count = 0; count < length; count++) + { + c = xdata[count]; + + if(c > 255) + { + ErrorMessage("plugbase.c->base64(): encountered char > 255 (decimal %d)\n If you see this error message a char is more than one byte on your machine\n This means your base64 results can not be trusted", c); + } + + bits += c; + char_count++; + + if(char_count == 3) + { + *output = alpha[bits >> 18]; output++; + *output = alpha[(bits >> 12) & 0x3f]; output++; + *output = alpha[(bits >> 6) & 0x3f]; output++; + *output = alpha[bits & 0x3f]; output++; + cols += 4; + if(cols == 72) + { + *output = '\n'; output++; + cols = 0; + } + bits = 0; + char_count = 0; + } + else + { + bits <<= 8; + } + } + + if(char_count != 0) + { + bits <<= 16 - (8 * char_count); + *output = alpha[bits >> 18]; output++; + *output = alpha[(bits >> 12) & 0x3f]; output++; + if(char_count == 1) + { + *output = '='; output++; + *output = '='; output++; + } + else + { + *output = alpha[(bits >> 6) & 0x3f]; + output++; *output = '='; + output++; + } + } + *output = '\0'; + return payloadptr; +} + +/**************************************************************************** + * + * Function: ascii(u_char *xdata, int length) + * + * Purpose: This function takes takes a buffer "xdata" and its length then + * returns a string of only the printable ASCII characters. + * + * Arguments: xdata is the buffer, length is the length of the buffer in + * bytes + * + * Returns: char * -- You must free this char * when you are done with it. + * + ***************************************************************************/ +char *ascii(const u_char *xdata, int length) +{ + char *d_ptr, *ret_val; + int i,count = 0; + int size; + + if(xdata == NULL) + { + return NULL; + } + + for(i=0;i<length;i++) + { + if(xdata[i] == '<') + count+=4; /* < */ + else if(xdata[i] == '&') + count+=5; /* & */ + else if(xdata[i] == '>') /* > */ + count += 4; + } + + size = length + count + 1; + ret_val = (char *) calloc(1,size); + + if(ret_val == NULL) + { + LogMessage("plugbase.c: ascii(): Out of memory, can't log anything!\n"); + return NULL; + } + + d_ptr = ret_val; + + for(i=0;i<length;i++) + { + if((xdata[i] > 0x1F) && (xdata[i] < 0x7F)) + { + if(xdata[i] == '<') + { + SnortStrncpy(d_ptr, "<", size - (d_ptr - ret_val)); + d_ptr+=4; + } + else if(xdata[i] == '&') + { + SnortStrncpy(d_ptr, "&", size - (d_ptr - ret_val)); + d_ptr += 5; + } + else if(xdata[i] == '>') + { + SnortStrncpy(d_ptr, ">", size - (d_ptr - ret_val)); + d_ptr += 4; + } + else + { + *d_ptr++ = xdata[i]; + } + } + else + { + *d_ptr++ = '.'; + } + } + + *d_ptr++ = '\0'; + + return ret_val; +} + +/**************************************************************************** + * + * Function: hex(u_char *xdata, int length) + * + * Purpose: This function takes takes a buffer "xdata" and its length then + * returns a string of hex with no spaces + * + * Arguments: xdata is the buffer, length is the length of the buffer in + * bytes + * + * Returns: char * -- You must free this char * when you are done with it. + * + ***************************************************************************/ +char *hex(const u_char *xdata, int length) +{ + int x; + char *rval = NULL; + char *buf = NULL; + + if (xdata == NULL) + return NULL; + + buf = (char *)calloc((length * 2) + 1, sizeof(char)); + + if (buf != NULL) + { + rval = buf; + + for (x = 0; x < length; x++) + { + SnortSnprintf(buf, 3, "%02X", xdata[x]); + buf += 2; + } + + rval[length * 2] = '\0'; + } + + return rval; +} + + + +char *fasthex(const u_char *xdata, int length) +{ + char conv[] = "0123456789ABCDEF"; + char *retbuf = NULL; + const u_char *index; + const u_char *end; + char *ridx; + + index = xdata; + end = xdata + length; + retbuf = (char *)SnortAlloc(((length * 2) + 1) * sizeof(char)); + ridx = retbuf; + + while(index < end) + { + *ridx++ = conv[((*index & 0xFF)>>4)]; + *ridx++ = conv[((*index & 0xFF)&0x0F)]; + index++; + } + + return retbuf; +} + +/* + * Fatal Integer Parser + * Ascii to Integer conversion with fatal error support + */ +long int xatol(const char *s , const char *etext) +{ + long int val; + char *endptr; + char *default_error = "xatol() error\n"; + + if (etext == NULL) + etext = default_error; + + if (s == NULL) + FatalError("%s: String is NULL\n", etext); + + while (isspace((int)*s)) + s++; + + if (strlen(s) == 0) + FatalError("%s: String is empty\n", etext); + + + /* + * strtoul - errors on win32 : ERANGE (VS 6.0) + * errors on linux : ERANGE, EINVAL + * (for EINVAL, unsupported base which won't happen here) + */ + val = SnortStrtol(s, &endptr, 0); + + if ((errno == ERANGE) || (*endptr != '\0')) + FatalError("%s: Invalid integer input: %s\n", etext, s); + + return val; +} + +/* + * Fatal Integer Parser + * Ascii to Integer conversion with fatal error support + */ +unsigned long int xatou(const char *s , const char *etext) +{ + unsigned long int val; + char *endptr; + char *default_error = "xatou() error\n"; + + if (etext == NULL) + etext = default_error; + + if (s == NULL) + FatalError("%s: String is NULL\n", etext); + + while (isspace((int)*s)) + s++; + + if (strlen(s) == 0) + FatalError("%s: String is empty\n", etext); + + if (*s == '-') + { + FatalError("%s: Invalid unsigned integer - negative sign found, " + "input: %s\n", etext, s); + } + + + /* + * strtoul - errors on win32 : ERANGE (VS 6.0) + * errors on linux : ERANGE, EINVAL + */ + val = SnortStrtoul(s, &endptr, 0); + + if ((errno == ERANGE) || (*endptr != '\0')) + FatalError("%s: Invalid integer input: %s\n", etext, s); + + return val; +} + +unsigned long int xatoup(const char *s , const char *etext) +{ + unsigned long int val = xatou(s, etext); + if ( !val ) + FatalError("%s: must be > 0\n", etext); + return val; +} + +#ifndef SUP_IP6 +char * ObfuscateIpToText(const struct in_addr ip_addr) +#else +char * ObfuscateIpToText(sfip_t *ip) +#endif +{ + static char ip_buf1[INET6_ADDRSTRLEN]; + static char ip_buf2[INET6_ADDRSTRLEN]; + static int buf_num = 0; + int buf_size = INET6_ADDRSTRLEN; + char *ip_buf; +#ifndef SUP_IP6 + uint32_t ip = ip_addr.s_addr; +#endif + + if (buf_num) + ip_buf = ip_buf2; + else + ip_buf = ip_buf1; + + buf_num ^= 1; + ip_buf[0] = 0; + +#ifndef SUP_IP6 + if (ip == 0) + return ip_buf; + + if (snort_conf->obfuscation_net == 0) + { + /* Fully obfuscate - just use 'x' */ + SnortSnprintf(ip_buf, buf_size, "xxx.xxx.xxx.xxx"); + } + else + { + if (snort_conf->homenet != 0) + { + if ((ip & snort_conf->netmask) == snort_conf->homenet) + ip = snort_conf->obfuscation_net | (ip & snort_conf->obfuscation_mask); + } + else + { + ip = snort_conf->obfuscation_net | (ip & snort_conf->obfuscation_mask); + } + + SnortSnprintf(ip_buf, buf_size, "%s", inet_ntoa(*((struct in_addr *)&ip))); + } + +#else + if (ip == NULL) + return ip_buf; + + if (!IS_SET(snort_conf->obfuscation_net)) + { + if (IS_IP6(ip)) + SnortSnprintf(ip_buf, buf_size, "x:x:x:x::x:x:x:x"); + else + SnortSnprintf(ip_buf, buf_size, "xxx.xxx.xxx.xxx"); + } + else + { + sfip_t tmp; + char *tmp_buf; + + IP_COPY_VALUE(tmp, ip); + + if (IS_SET(snort_conf->homenet)) + { + if (sfip_contains(&snort_conf->homenet, &tmp) == SFIP_CONTAINS) + sfip_obfuscate(&snort_conf->obfuscation_net, &tmp); + } + else + { + sfip_obfuscate(&snort_conf->obfuscation_net, &tmp); + } + + tmp_buf = sfip_to_str(&tmp); + SnortSnprintf(ip_buf, buf_size, "%s", tmp_buf); + } +#endif + + return ip_buf; +} + +void PrintPacketData(const uint8_t *data, const uint32_t len) +{ + uint32_t i, j; + uint32_t total_len = 0; + uint8_t hex_buf[16]; + uint8_t char_buf[16]; + char *length_chars = " 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15\n" + "------------------------------------------------------\n"; + + LogMessage("%s", length_chars); + + for (i = 0; i <= len; i++) + { + if ((i%16 == 0) && (i != 0)) + { + LogMessage("%04x ", total_len); + total_len += 16; + + for (j = 0; j < 16; j++) + { + LogMessage("%02x ", hex_buf[j]); + if (j == 7) + LogMessage(" "); + } + + LogMessage(" "); + + for (j = 0; j < 16; j++) + { + LogMessage("%c", char_buf[j]); + if (j == 7) + LogMessage(" "); + } + + LogMessage("\n"); + } + + if (i == len) + break; + + hex_buf[i%16] = data[i]; + + if (isprint((int)data[i])) + char_buf[i%16] = data[i]; + else + char_buf[i%16] = '.'; + } + + if ((i-total_len) > 0) + { + LogMessage("%04x ", total_len); + + for (j = 0; j < i-total_len; j++) + { + LogMessage("%02x ", hex_buf[j]); + if (j == 7) + LogMessage(" "); + } + + if (j < 8) + LogMessage(" "); + LogMessage("%*s", (16-j)*3, ""); + LogMessage(" "); + + for (j = 0; j < i-total_len; j++) + { + LogMessage("%c", char_buf[j]); + if (j == 7) + LogMessage(" "); + } + } + + LogMessage("\n"); +} + |