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-rw-r--r--framework/src/suricata/src/detect-flags.c1341
1 files changed, 0 insertions, 1341 deletions
diff --git a/framework/src/suricata/src/detect-flags.c b/framework/src/suricata/src/detect-flags.c
deleted file mode 100644
index b5b1840a..00000000
--- a/framework/src/suricata/src/detect-flags.c
+++ /dev/null
@@ -1,1341 +0,0 @@
-/* Copyright (C) 2007-2010 Open Information Security Foundation
- *
- * You can copy, redistribute or modify this Program under the terms of
- * the GNU General Public License version 2 as published by the Free
- * Software Foundation.
- *
- * 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
- * version 2 along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-/**
- * \file
- *
- * \author Breno Silva <breno.silva@gmail.com>
- *
- * Implements the flags keyword
- */
-
-#include "suricata-common.h"
-#include "suricata.h"
-#include "decode.h"
-
-#include "detect.h"
-#include "detect-parse.h"
-
-#include "flow-var.h"
-#include "decode-events.h"
-
-#include "detect-flags.h"
-#include "util-unittest.h"
-
-#include "util-debug.h"
-
-/**
- * Regex (by Brian Rectanus)
- * flags: [!+*](SAPRFU120)[,SAPRFU12]
- */
-#define PARSE_REGEX "^\\s*(?:([\\+\\*!]))?\\s*([SAPRFU120CE\\+\\*!]+)(?:\\s*,\\s*([SAPRFU12CE]+))?\\s*$"
-
-/**
- * Flags args[0] *(3) +(2) !(1)
- *
- */
-
-#define MODIFIER_NOT 1
-#define MODIFIER_PLUS 2
-#define MODIFIER_ANY 3
-
-static pcre *parse_regex;
-static pcre_extra *parse_regex_study;
-
-static int DetectFlagsMatch (ThreadVars *, DetectEngineThreadCtx *, Packet *, Signature *, const SigMatchCtx *);
-static int DetectFlagsSetup (DetectEngineCtx *, Signature *, char *);
-static void DetectFlagsFree(void *);
-
-/**
- * \brief Registration function for flags: keyword
- */
-
-void DetectFlagsRegister (void)
-{
- sigmatch_table[DETECT_FLAGS].name = "flags";
- sigmatch_table[DETECT_FLAGS].Match = DetectFlagsMatch;
- sigmatch_table[DETECT_FLAGS].Setup = DetectFlagsSetup;
- sigmatch_table[DETECT_FLAGS].Free = DetectFlagsFree;
- sigmatch_table[DETECT_FLAGS].RegisterTests = FlagsRegisterTests;
-
- const char *eb;
- int opts = 0;
- int eo;
-
- parse_regex = pcre_compile(PARSE_REGEX, opts, &eb, &eo, NULL);
- if(parse_regex == NULL)
- {
- SCLogError(SC_ERR_PCRE_COMPILE, "pcre compile of \"%s\" failed at offset %" PRId32 ": %s", PARSE_REGEX, eo, eb);
- goto error;
- }
-
- parse_regex_study = pcre_study(parse_regex, 0, &eb);
- if(eb != NULL)
- {
- SCLogError(SC_ERR_PCRE_STUDY, "pcre study failed: %s", eb);
- goto error;
- }
-
-error:
- return;
-
-}
-
-/**
- * \internal
- * \brief This function is used to match flags on a packet with those passed via flags:
- *
- * \param t pointer to thread vars
- * \param det_ctx pointer to the pattern matcher thread
- * \param p pointer to the current packet
- * \param s pointer to the Signature
- * \param m pointer to the sigmatch
- *
- * \retval 0 no match
- * \retval 1 match
- */
-static int DetectFlagsMatch (ThreadVars *t, DetectEngineThreadCtx *det_ctx, Packet *p, Signature *s, const SigMatchCtx *ctx)
-{
- SCEnter();
-
- uint8_t flags = 0;
- const DetectFlagsData *de = (const DetectFlagsData *)ctx;
-
- if (!(PKT_IS_TCP(p)) || PKT_IS_PSEUDOPKT(p)) {
- SCReturnInt(0);
- }
-
- flags = p->tcph->th_flags;
-
- if (!de->flags && flags) {
- if(de->modifier == MODIFIER_NOT) {
- SCReturnInt(1);
- }
-
- SCReturnInt(0);
- }
-
- flags &= de->ignored_flags;
-
- switch (de->modifier) {
- case MODIFIER_ANY:
- if ((flags & de->flags) > 0) {
- SCReturnInt(1);
- }
- SCReturnInt(0);
-
- case MODIFIER_PLUS:
- if (((flags & de->flags) == de->flags)) {
- SCReturnInt(1);
- }
- SCReturnInt(0);
-
- case MODIFIER_NOT:
- if ((flags & de->flags) != de->flags) {
- SCReturnInt(1);
- }
- SCReturnInt(0);
-
- default:
- SCLogDebug("flags %"PRIu8" and de->flags %"PRIu8"",flags,de->flags);
- if (flags == de->flags) {
- SCReturnInt(1);
- }
- }
-
- SCReturnInt(0);
-}
-
-/**
- * \internal
- * \brief This function is used to parse flags options passed via flags: keyword
- *
- * \param rawstr Pointer to the user provided flags options
- *
- * \retval de pointer to DetectFlagsData on success
- * \retval NULL on failure
- */
-static DetectFlagsData *DetectFlagsParse (char *rawstr)
-{
- SCEnter();
-
- DetectFlagsData *de = NULL;
-#define MAX_SUBSTRINGS 30
- int ret = 0, found = 0, ignore = 0, res = 0;
- int ov[MAX_SUBSTRINGS];
- const char *str_ptr = NULL;
- char *args[3] = { NULL, NULL, NULL };
- char *ptr;
- int i;
-
- ret = pcre_exec(parse_regex, parse_regex_study, rawstr, strlen(rawstr),
- 0, 0, ov, MAX_SUBSTRINGS);
- if (ret < 1) {
- SCLogError(SC_ERR_PCRE_MATCH, "pcre match failed");
- goto error;
- }
-
- for (i = 0; i < (ret - 1); i++) {
-
- res = pcre_get_substring((char *)rawstr, ov, MAX_SUBSTRINGS,i + 1,
- &str_ptr);
- if (res < 0) {
- SCLogError(SC_ERR_PCRE_GET_SUBSTRING, "pcre_get_substring failed");
- goto error;
- }
-
- args[i] = (char *)str_ptr;
- }
-
- if(args[1] == NULL) {
- SCLogDebug("args[1] == NULL");
- goto error;
- }
-
- de = SCMalloc(sizeof(DetectFlagsData));
- if (unlikely(de == NULL))
- goto error;
-
- memset(de,0,sizeof(DetectFlagsData));
-
- de->ignored_flags = 0xff;
-
- /** First parse args[0] */
-
- if(args[0]) {
-
- ptr = args[0];
-
- while (*ptr != '\0') {
- switch (*ptr) {
- case 'S':
- case 's':
- de->flags |= TH_SYN;
- found++;
- break;
- case 'A':
- case 'a':
- de->flags |= TH_ACK;
- found++;
- break;
- case 'F':
- case 'f':
- de->flags |= TH_FIN;
- found++;
- break;
- case 'R':
- case 'r':
- de->flags |= TH_RST;
- found++;
- break;
- case 'P':
- case 'p':
- de->flags |= TH_PUSH;
- found++;
- break;
- case 'U':
- case 'u':
- de->flags |= TH_URG;
- found++;
- break;
- case '1':
- de->flags |= TH_CWR;
- found++;
- break;
- case '2':
- de->flags |= TH_ECN;
- found++;
- break;
- case 'C':
- case 'c':
- de->flags |= TH_CWR;
- found++;
- break;
- case 'E':
- case 'e':
- de->flags |= TH_ECN;
- found++;
- break;
- case '0':
- de->flags = 0;
- found++;
- break;
-
- case '!':
- de->modifier = MODIFIER_NOT;
- break;
- case '+':
- de->modifier = MODIFIER_PLUS;
- break;
- case '*':
- de->modifier = MODIFIER_ANY;
- break;
- }
- ptr++;
- }
-
- }
-
- /** Second parse first set of flags */
-
- ptr = args[1];
-
- while (*ptr != '\0') {
- switch (*ptr) {
- case 'S':
- case 's':
- de->flags |= TH_SYN;
- found++;
- break;
- case 'A':
- case 'a':
- de->flags |= TH_ACK;
- found++;
- break;
- case 'F':
- case 'f':
- de->flags |= TH_FIN;
- found++;
- break;
- case 'R':
- case 'r':
- de->flags |= TH_RST;
- found++;
- break;
- case 'P':
- case 'p':
- de->flags |= TH_PUSH;
- found++;
- break;
- case 'U':
- case 'u':
- de->flags |= TH_URG;
- found++;
- break;
- case '1':
- de->flags |= TH_CWR;
- found++;
- break;
- case '2':
- de->flags |= TH_ECN;
- found++;
- break;
- case 'C':
- case 'c':
- de->flags |= TH_CWR;
- found++;
- break;
- case 'E':
- case 'e':
- de->flags |= TH_ECN;
- found++;
- break;
- case '0':
- de->flags = 0;
- found++;
- break;
-
- case '!':
- if (de->modifier != 0) {
- SCLogError(SC_ERR_FLAGS_MODIFIER, "\"flags\" supports only"
- " one modifier at a time");
- goto error;
- }
- de->modifier = MODIFIER_NOT;
- SCLogDebug("NOT modifier is set");
- break;
- case '+':
- if (de->modifier != 0) {
- SCLogError(SC_ERR_FLAGS_MODIFIER, "\"flags\" supports only"
- " one modifier at a time");
- goto error;
- }
- de->modifier = MODIFIER_PLUS;
- SCLogDebug("PLUS modifier is set");
- break;
- case '*':
- if (de->modifier != 0) {
- SCLogError(SC_ERR_FLAGS_MODIFIER, "\"flags\" supports only"
- " one modifier at a time");
- goto error;
- }
- de->modifier = MODIFIER_ANY;
- SCLogDebug("ANY modifier is set");
- break;
- default:
- break;
- }
- ptr++;
- }
-
- if(found == 0)
- goto error;
-
- /** Finally parse ignored flags */
-
- if(args[2]) {
-
- ptr = args[2];
-
- while (*ptr != '\0') {
- switch (*ptr) {
- case 'S':
- case 's':
- de->ignored_flags &= ~TH_SYN;
- ignore++;
- break;
- case 'A':
- case 'a':
- de->ignored_flags &= ~TH_ACK;
- ignore++;
- break;
- case 'F':
- case 'f':
- de->ignored_flags &= ~TH_FIN;
- ignore++;
- break;
- case 'R':
- case 'r':
- de->ignored_flags &= ~TH_RST;
- ignore++;
- break;
- case 'P':
- case 'p':
- de->ignored_flags &= ~TH_PUSH;
- ignore++;
- break;
- case 'U':
- case 'u':
- de->ignored_flags &= ~TH_URG;
- ignore++;
- break;
- case '1':
- de->ignored_flags &= ~TH_CWR;
- ignore++;
- break;
- case '2':
- de->ignored_flags &= ~TH_ECN;
- ignore++;
- break;
- case 'C':
- case 'c':
- de->ignored_flags &= ~TH_CWR;
- ignore++;
- break;
- case 'E':
- case 'e':
- de->ignored_flags &= ~TH_ECN;
- ignore++;
- break;
- case '0':
- break;
- default:
- break;
- }
- ptr++;
- }
-
- if(ignore == 0) {
- SCLogDebug("ignore == 0");
- goto error;
- }
- }
-
- for (i = 0; i < (ret - 1); i++){
- SCLogDebug("args[%"PRId32"] = %s",i, args[i]);
- if (args[i] != NULL) SCFree(args[i]);
- }
-
- SCLogDebug("found %"PRId32" ignore %"PRId32"", found, ignore);
- SCReturnPtr(de, "DetectFlagsData");
-
-error:
- for (i = 0; i < (ret - 1); i++){
- if (args[i] != NULL) SCFree(args[i]);
- }
- if (de) SCFree(de);
- SCReturnPtr(NULL, "DetectFlagsData");
-}
-
-/**
- * \internal
- * \brief this function is used to add the parsed flags into the current signature
- *
- * \param de_ctx pointer to the Detection Engine Context
- * \param s pointer to the Current Signature
- * \param m pointer to the Current SigMatch
- * \param rawstr pointer to the user provided flags options
- *
- * \retval 0 on Success
- * \retval -1 on Failure
- */
-static int DetectFlagsSetup (DetectEngineCtx *de_ctx, Signature *s, char *rawstr)
-{
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
-
- de = DetectFlagsParse(rawstr);
- if (de == NULL)
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- SigMatchAppendSMToList(s, sm, DETECT_SM_LIST_MATCH);
- s->flags |= SIG_FLAG_REQUIRE_PACKET;
-
- return 0;
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- return -1;
-}
-
-/**
- * \internal
- * \brief this function will free memory associated with DetectFlagsData
- *
- * \param de pointer to DetectFlagsData
- */
-static void DetectFlagsFree(void *de_ptr)
-{
- DetectFlagsData *de = (DetectFlagsData *)de_ptr;
- if(de) SCFree(de);
-}
-
-/*
- * ONLY TESTS BELOW THIS COMMENT
- */
-
-#ifdef UNITTESTS
-/**
- * \test FlagsTestParse01 is a test for a valid flags value
- *
- * \retval 1 on succces
- * \retval 0 on failure
- */
-static int FlagsTestParse01 (void)
-{
- DetectFlagsData *de = NULL;
- de = DetectFlagsParse("S");
- if (de && (de->flags == TH_SYN) ) {
- DetectFlagsFree(de);
- return 1;
- }
-
- return 0;
-}
-
-/**
- * \test FlagsTestParse02 is a test for an invalid flags value
- *
- * \retval 1 on succces
- * \retval 0 on failure
- */
-static int FlagsTestParse02 (void)
-{
- DetectFlagsData *de = NULL;
- de = DetectFlagsParse("G");
- if (de) {
- DetectFlagsFree(de);
- return 1;
- }
-
- return 0;
-}
-
-/**
- * \test FlagsTestParse03 test if ACK and PUSH are set. Must return success
- *
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse03 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_ACK|TH_PUSH|TH_SYN|TH_RST;
-
- de = DetectFlagsParse("AP+");
-
- if (de == NULL || (de->flags != (TH_ACK|TH_PUSH)) )
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse04 check if ACK bit is set. Must fails.
- *
- * \retval 1 on succces
- * \retval 0 on failure
- */
-static int FlagsTestParse04 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN;
-
- de = DetectFlagsParse("A");
-
- if (de == NULL || de->flags != TH_ACK)
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse05 test if ACK+PUSH and more flags are set. Ignore SYN and RST bits.
- * Must fails.
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse05 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_ACK|TH_PUSH|TH_SYN|TH_RST;
-
- de = DetectFlagsParse("+AP,SR");
-
- if (de == NULL || (de->modifier != MODIFIER_PLUS) || (de->flags != (TH_ACK|TH_PUSH)) || (de->ignored_flags != (TH_SYN|TH_RST)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse06 test if ACK+PUSH and more flags are set. Ignore URG and RST bits.
- * Must return success.
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse06 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_ACK|TH_PUSH|TH_SYN|TH_RST;
-
- de = DetectFlagsParse("+AP,UR");
-
- if (de == NULL || (de->modifier != MODIFIER_PLUS) || (de->flags != (TH_ACK|TH_PUSH)) || ((0xff - de->ignored_flags) != (TH_URG|TH_RST)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse07 test if SYN or RST are set. Must fails.
- *
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse07 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN|TH_RST;
-
- de = DetectFlagsParse("*AP");
-
- if (de == NULL || (de->modifier != MODIFIER_ANY) || (de->flags != (TH_ACK|TH_PUSH)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse08 test if SYN or RST are set. Must return success.
- *
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse08 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN|TH_RST;
-
- de = DetectFlagsParse("*SA");
-
- if (de == NULL || (de->modifier != MODIFIER_ANY) || (de->flags != (TH_ACK|TH_SYN)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse09 test if SYN and RST are not set. Must fails.
- *
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse09 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN|TH_RST;
-
- de = DetectFlagsParse("!PA");
-
- if (de == NULL || (de->modifier != MODIFIER_NOT) || (de->flags != (TH_ACK|TH_PUSH)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse10 test if ACK and PUSH are not set. Must return success.
- *
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse10 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN|TH_RST;
-
- de = DetectFlagsParse("!AP");
-
- if (de == NULL || (de->modifier != MODIFIER_NOT) || (de->flags != (TH_ACK|TH_PUSH)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse11 test if ACK or PUSH are set. Ignore SYN and RST. Must fails.
- *
- * \retval 1 on success
- * \retval 0 on failure
- */
-static int FlagsTestParse11 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN|TH_RST|TH_URG;
-
- de = DetectFlagsParse("*AP,SR");
-
- if (de == NULL || (de->modifier != MODIFIER_ANY) || (de->flags != (TH_ACK|TH_PUSH)) || ((0xff - de->ignored_flags) != (TH_SYN|TH_RST)))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test FlagsTestParse12 check if no flags are set. Must fails.
- *
- * \retval 1 on succces
- * \retval 0 on failure
- */
-static int FlagsTestParse12 (void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_SYN;
-
- de = DetectFlagsParse("0");
-
- if (de == NULL || de->flags != 0) {
- printf("de setup: ");
- goto error;
- }
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if(ret) {
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de) SCFree(de);
- if (sm) SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test test for a valid flags value
- *
- * \retval 1 on succces
- * \retval 0 on failure
- */
-static int FlagsTestParse13 (void)
-{
- DetectFlagsData *de = NULL;
- de = DetectFlagsParse("+S*");
- if (de != NULL) {
- DetectFlagsFree(de);
- return 0;
- }
-
- return 1;
-}
-
-/**
- * \test Parse 'C' and 'E' flags.
- *
- * \retval 1 on success.
- * \retval 0 on failure.
- */
-static int FlagsTestParse14(void)
-{
- DetectFlagsData *de = DetectFlagsParse("CE");
- if (de != NULL && (de->flags == (TH_CWR | TH_ECN)) ) {
- DetectFlagsFree(de);
- return 1;
- }
-
- return 0;
-}
-
-static int FlagsTestParse15(void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_ECN | TH_CWR | TH_SYN | TH_RST;
-
- de = DetectFlagsParse("EC+");
-
- if (de == NULL || (de->flags != (TH_ECN | TH_CWR)) )
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if (ret) {
- if (de)
- SCFree(de);
- if (sm)
- SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de)
- SCFree(de);
- if (sm)
- SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-static int FlagsTestParse16(void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_ECN | TH_SYN | TH_RST;
-
- de = DetectFlagsParse("EC*");
-
- if (de == NULL || (de->flags != (TH_ECN | TH_CWR)) )
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if (ret) {
- if (de)
- SCFree(de);
- if (sm)
- SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de)
- SCFree(de);
- if (sm)
- SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-/**
- * \test Negative test.
- */
-static int FlagsTestParse17(void)
-{
- Packet *p = SCMalloc(SIZE_OF_PACKET);
- if (unlikely(p == NULL))
- return 0;
- ThreadVars tv;
- int ret = 0;
- DetectFlagsData *de = NULL;
- SigMatch *sm = NULL;
- IPV4Hdr ipv4h;
- TCPHdr tcph;
-
- memset(&tv, 0, sizeof(ThreadVars));
- memset(p, 0, SIZE_OF_PACKET);
- memset(&ipv4h, 0, sizeof(IPV4Hdr));
- memset(&tcph, 0, sizeof(TCPHdr));
-
- p->ip4h = &ipv4h;
- p->tcph = &tcph;
- p->tcph->th_flags = TH_ECN | TH_SYN | TH_RST;
-
- de = DetectFlagsParse("EC+");
-
- if (de == NULL || (de->flags != (TH_ECN | TH_CWR)) )
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_FLAGS;
- sm->ctx = (SigMatchCtx *)de;
-
- ret = DetectFlagsMatch(&tv, NULL, p, NULL, sm->ctx);
-
- if (ret == 0) {
- if (de)
- SCFree(de);
- if (sm)
- SCFree(sm);
- SCFree(p);
- return 1;
- }
-
-error:
- if (de)
- SCFree(de);
- if (sm)
- SCFree(sm);
- SCFree(p);
- return 0;
-}
-
-#endif /* UNITTESTS */
-
-/**
- * \brief this function registers unit tests for Flags
- */
-void FlagsRegisterTests(void)
-{
-#ifdef UNITTESTS
- UtRegisterTest("FlagsTestParse01", FlagsTestParse01, 1);
- UtRegisterTest("FlagsTestParse02", FlagsTestParse02, 0);
- UtRegisterTest("FlagsTestParse03", FlagsTestParse03, 1);
- UtRegisterTest("FlagsTestParse04", FlagsTestParse04, 0);
- UtRegisterTest("FlagsTestParse05", FlagsTestParse05, 0);
- UtRegisterTest("FlagsTestParse06", FlagsTestParse06, 1);
- UtRegisterTest("FlagsTestParse07", FlagsTestParse07, 0);
- UtRegisterTest("FlagsTestParse08", FlagsTestParse08, 1);
- UtRegisterTest("FlagsTestParse09", FlagsTestParse09, 1);
- UtRegisterTest("FlagsTestParse10", FlagsTestParse10, 1);
- UtRegisterTest("FlagsTestParse11", FlagsTestParse11, 0);
- UtRegisterTest("FlagsTestParse12", FlagsTestParse12, 0);
- UtRegisterTest("FlagsTestParse13", FlagsTestParse13, 1);
- UtRegisterTest("FlagsTestParse14", FlagsTestParse14, 1);
- UtRegisterTest("FlagsTestParse15", FlagsTestParse15, 1);
- UtRegisterTest("FlagsTestParse16", FlagsTestParse16, 1);
- UtRegisterTest("FlagsTestParse17", FlagsTestParse17, 1);
-#endif /* UNITTESTS */
-}