/* Copyright (C) 2011-2014 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 Eric Leblond * * Replace part of the detection engine. * * If previous filter is of content type, replace can be used to change * the matched part to a new value. */ #include "suricata-common.h" #include "runmodes.h" extern int run_mode; #include "decode.h" #include "detect.h" #include "detect-parse.h" #include "detect-content.h" #include "detect-uricontent.h" #include "detect-byte-extract.h" #include "detect-replace.h" #include "app-layer.h" #include "detect-engine-mpm.h" #include "detect-engine.h" #include "detect-engine-state.h" #include "util-checksum.h" #include "util-unittest.h" #include "util-unittest-helper.h" #include "flow-var.h" #include "util-debug.h" #include "pkt-var.h" #include "host.h" #include "util-profiling.h" static int DetectReplaceSetup(DetectEngineCtx *, Signature *, char *); void DetectReplaceRegisterTests(void); void DetectReplaceRegister (void) { sigmatch_table[DETECT_REPLACE].name = "replace"; sigmatch_table[DETECT_REPLACE].Match = NULL; sigmatch_table[DETECT_REPLACE].Setup = DetectReplaceSetup; sigmatch_table[DETECT_REPLACE].Free = NULL; sigmatch_table[DETECT_REPLACE].RegisterTests = DetectReplaceRegisterTests; sigmatch_table[DETECT_REPLACE].flags |= SIGMATCH_PAYLOAD; } int DetectReplaceSetup(DetectEngineCtx *de_ctx, Signature *s, char *replacestr) { uint8_t *content = NULL; uint16_t len = 0; uint32_t flags = 0; SigMatch *pm = NULL; DetectContentData *ud = NULL; int ret = DetectContentDataParse("replace", replacestr, &content, &len, &flags); if (ret == -1) goto error; if (flags & DETECT_CONTENT_NEGATED) { SCLogError(SC_ERR_INVALID_VALUE, "Can't negate replacement string: %s", replacestr); goto error; } switch (run_mode) { case RUNMODE_NFQ: case RUNMODE_IPFW: break; default: SCLogWarning(SC_ERR_RUNMODE, "Can't use 'replace' keyword in non IPS mode: %s", s->sig_str); /* this is a success, having the alert is interesting */ return 0; } /* add to the latest "content" keyword from either dmatch or pmatch */ pm = SigMatchGetLastSMFromLists(s, 2, DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_PMATCH]); if (pm == NULL) { SCLogError(SC_ERR_WITHIN_MISSING_CONTENT, "replace needs" "preceding content option for raw sig"); SCFree(content); return -1; } /* we can remove this switch now with the unified structure */ ud = (DetectContentData *)pm->ctx; if (ud == NULL) { SCLogError(SC_ERR_INVALID_ARGUMENT, "invalid argument"); SCFree(content); return -1; } if (ud->flags & DETECT_CONTENT_NEGATED) { SCLogError(SC_ERR_INVALID_SIGNATURE, "can't have a relative " "negated keyword set along with a replacement"); goto error; } if (ud->content_len != len) { SCLogError(SC_ERR_INVALID_SIGNATURE, "can't have a content " "length different from replace length"); goto error; } ud->replace = SCMalloc(len); if (ud->replace == NULL) { goto error; } memcpy(ud->replace, content, len); ud->replace_len = len; ud->flags |= DETECT_CONTENT_REPLACE; /* want packet matching only won't be able to replace data with * a flow. */ s->flags |= SIG_FLAG_REQUIRE_PACKET; SCFree(content); return 0; error: SCFree(content); return -1; } /* Add to the head of the replace-list. * * The first to add to the replace-list has the highest priority. So, * adding the the head of the list results in the newest modifications * of content being applied first, so later changes can over ride * earlier changes. Thus the highest priority modifications should be * applied last. */ DetectReplaceList *DetectReplaceAddToList(DetectReplaceList *replist, uint8_t *found, DetectContentData *cd) { DetectReplaceList *newlist; if (cd->content_len != cd->replace_len) return NULL; SCLogDebug("replace: Adding match"); newlist = SCMalloc(sizeof(DetectReplaceList)); if (unlikely(newlist == NULL)) return replist; newlist->found = found; newlist->cd = cd; /* Push new value onto the front of the list. */ newlist->next = replist; return newlist; } void DetectReplaceExecuteInternal(Packet *p, DetectReplaceList *replist) { DetectReplaceList *tlist = NULL; SCLogDebug("replace: Executing match"); while (replist) { memcpy(replist->found, replist->cd->replace, replist->cd->replace_len); SCLogDebug("replace: injecting '%s'", replist->cd->replace); p->flags |= PKT_STREAM_MODIFIED; ReCalculateChecksum(p); tlist = replist; replist = replist->next; SCFree(tlist); } } void DetectReplaceFreeInternal(DetectReplaceList *replist) { DetectReplaceList *tlist = NULL; while (replist) { SCLogDebug("replace: Freeing match"); tlist = replist; replist = replist->next; SCFree(tlist); } } #ifdef UNITTESTS /* UNITTESTS */ /** * \test Test packet Matches * \param raw_eth_pkt pointer to the ethernet packet * \param pktsize size of the packet * \param sig pointer to the signature to test * \param sid sid number of the signature * \retval return 1 if match * \retval return 0 if not */ static int DetectReplaceLongPatternMatchTest(uint8_t *raw_eth_pkt, uint16_t pktsize, char *sig, uint32_t sid, uint8_t *pp, uint16_t *len) { int result = 0; Packet *p = NULL; p = PacketGetFromAlloc(); if (unlikely(p == NULL)) return 0; DecodeThreadVars dtv; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; if (pp == NULL) { SCLogDebug("replace: looks like a second run"); } PacketCopyData(p, raw_eth_pkt, pktsize); memset(&dtv, 0, sizeof(DecodeThreadVars)); memset(&th_v, 0, sizeof(th_v)); dtv.app_tctx = AppLayerGetCtxThread(&th_v); FlowInitConfig(FLOW_QUIET); DecodeEthernet(&th_v, &dtv, p, GET_PKT_DATA(p), pktsize, NULL); DetectEngineCtx *de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, sig); if (de_ctx->sig_list == NULL) { goto end; } de_ctx->sig_list->next = NULL; if (de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->type == DETECT_CONTENT) { DetectContentData *co = (DetectContentData *)de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx; if (co->flags & DETECT_CONTENT_RELATIVE_NEXT) { printf("relative next flag set on final match which is content: "); goto end; } } SigGroupBuild(de_ctx); DetectEngineAddToMaster(de_ctx); DetectEngineThreadCtxInit(&th_v, NULL, (void *)&det_ctx); SigMatchSignatures(&th_v, de_ctx, det_ctx, p); DetectEngineMoveToFreeList(de_ctx); if (PacketAlertCheck(p, sid) != 1) { SCLogDebug("replace: no alert on sig %d", sid); goto end; } if (pp) { memcpy(pp, GET_PKT_DATA(p), GET_PKT_LEN(p)); *len = pktsize; SCLogDebug("replace: copying %d on %p", *len, pp); } result = 1; end: if (dtv.app_tctx != NULL) AppLayerDestroyCtxThread(dtv.app_tctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); DetectEnginePruneFreeList(); PACKET_RECYCLE(p); FlowShutdown(); SCFree(p); return result; } /** * \brief Wrapper for DetectContentLongPatternMatchTest */ int DetectReplaceLongPatternMatchTestWrp(char *sig, uint32_t sid, char *sig_rep, uint32_t sid_rep) { int ret; /** Real packet with the following tcp data: * "Hi, this is a big test to check content matches of splitted" * "patterns between multiple chunks!" * (without quotes! :) ) */ uint8_t raw_eth_pkt[] = { 0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00, 0x00,0x00,0x00,0x00,0x08,0x00,0x45,0x00, 0x00,0x85,0x00,0x01,0x00,0x00,0x40,0x06, 0x7c,0x70,0x7f,0x00,0x00,0x01,0x7f,0x00, 0x00,0x01,0x00,0x14,0x00,0x50,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x50,0x02, 0x20,0x00,0xc9,0xad,0x00,0x00,0x48,0x69, 0x2c,0x20,0x74,0x68,0x69,0x73,0x20,0x69, 0x73,0x20,0x61,0x20,0x62,0x69,0x67,0x20, 0x74,0x65,0x73,0x74,0x20,0x74,0x6f,0x20, 0x63,0x68,0x65,0x63,0x6b,0x20,0x63,0x6f, 0x6e,0x74,0x65,0x6e,0x74,0x20,0x6d,0x61, 0x74,0x63,0x68,0x65,0x73,0x20,0x6f,0x66, 0x20,0x73,0x70,0x6c,0x69,0x74,0x74,0x65, 0x64,0x20,0x70,0x61,0x74,0x74,0x65,0x72, 0x6e,0x73,0x20,0x62,0x65,0x74,0x77,0x65, 0x65,0x6e,0x20,0x6d,0x75,0x6c,0x74,0x69, 0x70,0x6c,0x65,0x20,0x63,0x68,0x75,0x6e, 0x6b,0x73,0x21 }; /* end raw_eth_pkt */ uint8_t p[sizeof(raw_eth_pkt)]; uint16_t psize = sizeof(raw_eth_pkt); /* would be unittest */ int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; ret = DetectReplaceLongPatternMatchTest(raw_eth_pkt, (uint16_t)sizeof(raw_eth_pkt), sig, sid, p, &psize); if (ret == 1) { SCLogDebug("replace: test1 phase1"); ret = DetectReplaceLongPatternMatchTest(p, psize, sig_rep, sid_rep, NULL, NULL); } run_mode = run_mode_backup; return ret; } /** * \brief Wrapper for DetectContentLongPatternMatchTest */ int DetectReplaceLongPatternMatchTestUDPWrp(char *sig, uint32_t sid, char *sig_rep, uint32_t sid_rep) { int ret; /** Real UDP DNS packet with a request A to a1.twimg.com */ uint8_t raw_eth_pkt[] = { 0x8c, 0xa9, 0x82, 0x75, 0x5d, 0x62, 0xb4, 0x07, 0xf9, 0xf3, 0xc7, 0x0a, 0x08, 0x00, 0x45, 0x00, 0x00, 0x3a, 0x92, 0x4f, 0x40, 0x00, 0x40, 0x11, 0x31, 0x1a, 0xc0, 0xa8, 0x00, 0x02, 0xc1, 0xbd, 0xf4, 0xe1, 0x3b, 0x7e, 0x00, 0x35, 0x00, 0x26, 0xcb, 0x81, 0x37, 0x62, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x61, 0x31, 0x05, 0x74, 0x77, 0x69, 0x6d, 0x67, 0x03, 0x63, 0x6f, 0x6d, 0x00, 0x00, 0x01, 0x00, 0x01 }; uint8_t p[sizeof(raw_eth_pkt)]; uint16_t psize = sizeof(raw_eth_pkt); int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; ret = DetectReplaceLongPatternMatchTest(raw_eth_pkt, (uint16_t)sizeof(raw_eth_pkt), sig, sid, p, &psize); if (ret == 1) { SCLogDebug("replace: test1 phase1 ok: %" PRIuMAX" vs %d",(uintmax_t)sizeof(raw_eth_pkt),psize); ret = DetectReplaceLongPatternMatchTest(p, psize, sig_rep, sid_rep, NULL, NULL); } run_mode = run_mode_backup; return ret; } /** * \test Check if replace is working */ static int DetectReplaceMatchTest01(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; replace:\"pig\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"this is a pig test\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with offset */ static int DetectReplaceMatchTest02(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"th\"; offset: 4; replace:\"TH\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"THis\"; offset:4; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with offset and keyword inversion */ static int DetectReplaceMatchTest03(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"th\"; replace:\"TH\"; offset: 4; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"THis\"; offset:4; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with second content */ static int DetectReplaceMatchTest04(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"th\"; replace:\"TH\"; content:\"patter\"; replace:\"matter\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"THis\"; content:\"matterns\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is not done when second content don't match */ static int DetectReplaceMatchTest05(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"th\"; replace:\"TH\"; content:\"nutella\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"TH\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is not done when second content match and not * first */ static int DetectReplaceMatchTest06(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"nutella\"; replace:\"commode\"; content:\"this is\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"commode\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working when nocase used */ static int DetectReplaceMatchTest07(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"BiG\"; nocase; replace:\"pig\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"this is a pig test\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working when depth is used */ static int DetectReplaceMatchTest08(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; depth:17; replace:\"pig\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"this is a pig test\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working when depth block match used */ static int DetectReplaceMatchTest09(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; depth:16; replace:\"pig\"; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"this is a pig test\"; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working when depth block match used */ static int DetectReplaceMatchTest10(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; depth:17; replace:\"pig\"; offset: 14; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"pig\"; depth:17; offset:14; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with within */ static int DetectReplaceMatchTest11(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; replace:\"pig\"; content:\"to\"; within: 11; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"pig\"; depth:17; offset:14; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with within */ static int DetectReplaceMatchTest12(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; replace:\"pig\"; content:\"to\"; within: 4; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"pig\"; depth:17; offset:14; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with within */ static int DetectReplaceMatchTest13(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; replace:\"pig\"; content:\"test\"; distance: 1; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"pig\"; depth:17; offset:14; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with within */ static int DetectReplaceMatchTest14(void) { char *sig = "alert tcp any any -> any any (msg:\"Nothing..\";" " content:\"big\"; replace:\"pig\"; content:\"test\"; distance: 2; sid:1;)"; char *sig_rep = "alert tcp any any -> any any (msg:\"replace worked\";" " content:\"pig\"; depth:17; offset:14; sid:2;)"; return DetectReplaceLongPatternMatchTestWrp(sig, 1, sig_rep, 2); } /** * \test Check if replace is working with within */ static int DetectReplaceMatchTest15(void) { char *sig = "alert udp any any -> any any (msg:\"Nothing..\";" " content:\"com\"; replace:\"org\"; sid:1;)"; char *sig_rep = "alert udp any any -> any any (msg:\"replace worked\";" " content:\"twimg|03|org\"; sid:2;)"; return DetectReplaceLongPatternMatchTestUDPWrp(sig, 1, sig_rep, 2); } /** * \test Parsing test */ static int DetectReplaceParseTest01(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert udp any any -> any any " "(msg:\"test\"; content:\"doh\"; replace:\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test: non valid because of http protocol */ static int DetectReplaceParseTest02(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert http any any -> any any " "(msg:\"test\"; content:\"doh\"; replace:\"bon\"; sid:238012;)"); if (de_ctx->sig_list == NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test: non valid because of http_header on same content * as replace keyword */ static int DetectReplaceParseTest03(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " "(msg:\"test\"; content:\"doh\"; replace:\"don\"; http_header; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test no content */ static int DetectReplaceParseTest04(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " "(msg:\"test\"; replace:\"don\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test content after replace */ static int DetectReplaceParseTest05(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " "(msg:\"test\"; replace:\"don\"; content:\"doh\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test content and replace length differ */ static int DetectReplaceParseTest06(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " "(msg:\"test\"; content:\"don\"; replace:\"donut\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test content and replace length differ */ static int DetectReplaceParseTest07(void) { int run_mode_backup = run_mode; run_mode = RUNMODE_NFQ; DetectEngineCtx *de_ctx = NULL; int result = 1; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " "(msg:\"test\"; content:\"don\"; replace:\"dou\"; content:\"jpg\"; http_header; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: run_mode = run_mode_backup; SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } #endif /* UNITTESTS */ /** * \brief this function registers unit tests for DetectContent */ void DetectReplaceRegisterTests(void) { #ifdef UNITTESTS /* UNITTESTS */ /* matching */ UtRegisterTest("DetectReplaceMatchTest01", DetectReplaceMatchTest01, 1); UtRegisterTest("DetectReplaceMatchTest02", DetectReplaceMatchTest02, 1); UtRegisterTest("DetectReplaceMatchTest03", DetectReplaceMatchTest03, 1); UtRegisterTest("DetectReplaceMatchTest04", DetectReplaceMatchTest04, 1); UtRegisterTest("DetectReplaceMatchTest05", DetectReplaceMatchTest05, 0); UtRegisterTest("DetectReplaceMatchTest06", DetectReplaceMatchTest06, 0); UtRegisterTest("DetectReplaceMatchTest07", DetectReplaceMatchTest07, 1); UtRegisterTest("DetectReplaceMatchTest08", DetectReplaceMatchTest08, 1); UtRegisterTest("DetectReplaceMatchTest09", DetectReplaceMatchTest09, 0); UtRegisterTest("DetectReplaceMatchTest10", DetectReplaceMatchTest10, 1); UtRegisterTest("DetectReplaceMatchTest11", DetectReplaceMatchTest11, 1); UtRegisterTest("DetectReplaceMatchTest12", DetectReplaceMatchTest12, 0); UtRegisterTest("DetectReplaceMatchTest13", DetectReplaceMatchTest13, 1); UtRegisterTest("DetectReplaceMatchTest14", DetectReplaceMatchTest14, 0); UtRegisterTest("DetectReplaceMatchTest15", DetectReplaceMatchTest15, 1); /* parsing */ UtRegisterTest("DetectReplaceParseTest01", DetectReplaceParseTest01, 1); UtRegisterTest("DetectReplaceParseTest02", DetectReplaceParseTest02, 1); UtRegisterTest("DetectReplaceParseTest03", DetectReplaceParseTest03, 1); UtRegisterTest("DetectReplaceParseTest04", DetectReplaceParseTest04, 1); UtRegisterTest("DetectReplaceParseTest05", DetectReplaceParseTest05, 1); UtRegisterTest("DetectReplaceParseTest06", DetectReplaceParseTest06, 1); UtRegisterTest("DetectReplaceParseTest07", DetectReplaceParseTest07, 1); #endif /* UNITTESTS */ }