/* 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 Victor Julien * \author Gurvinder Singh * * Simple uricontent match part of the detection engine. */ #include "suricata-common.h" #include "decode.h" #include "detect.h" #include "detect-content.h" #include "detect-uricontent.h" #include "detect-engine-mpm.h" #include "detect-parse.h" #include "detect-engine.h" #include "detect-engine-state.h" #include "flow.h" #include "detect-flow.h" #include "flow-var.h" #include "flow-util.h" #include "threads.h" #include "flow-alert-sid.h" #include "stream-tcp.h" #include "stream.h" #include "app-layer-parser.h" #include "app-layer-protos.h" #include "app-layer-htp.h" #include "util-mpm.h" #include "util-print.h" #include "util-debug.h" #include "util-unittest.h" #include "util-unittest-helper.h" #include "util-binsearch.h" #include "util-spm.h" #include "util-spm-bm.h" /* prototypes */ static int DetectUricontentSetup (DetectEngineCtx *, Signature *, char *); void HttpUriRegisterTests(void); int DetectAppLayerUricontentMatch (ThreadVars *, DetectEngineThreadCtx *, Flow *, uint8_t , void *, Signature *, SigMatch *); void DetectUricontentFree(void *); /** * \brief Registration function for uricontent: keyword */ void DetectUricontentRegister (void) { sigmatch_table[DETECT_URICONTENT].name = "uricontent"; sigmatch_table[DETECT_URICONTENT].AppLayerMatch = NULL; sigmatch_table[DETECT_URICONTENT].Match = NULL; sigmatch_table[DETECT_URICONTENT].Setup = DetectUricontentSetup; sigmatch_table[DETECT_URICONTENT].Free = DetectUricontentFree; sigmatch_table[DETECT_URICONTENT].RegisterTests = HttpUriRegisterTests; sigmatch_table[DETECT_URICONTENT].alproto = ALPROTO_HTTP; sigmatch_table[DETECT_URICONTENT].flags |= SIGMATCH_PAYLOAD; } /** * \brief pass on the uricontent_max_id * \param de_ctx pointer to the detect egine context whose max id is asked */ uint32_t DetectUricontentMaxId(DetectEngineCtx *de_ctx) { return MpmPatternIdStoreGetMaxId(de_ctx->mpm_pattern_id_store); } /** * \brief this function will Free memory associated with DetectContentData * * \param cd pointer to DetectUricotentData */ void DetectUricontentFree(void *ptr) { SCEnter(); DetectContentData *cd = (DetectContentData *)ptr; if (cd == NULL) SCReturn; BoyerMooreCtxDeInit(cd->bm_ctx); SCFree(cd); SCReturn; } /** * \brief Helper function to print a DetectContentData */ void DetectUricontentPrint(DetectContentData *cd) { int i = 0; if (cd == NULL) { SCLogDebug("Detect UricontentData \"cd\" is NULL"); return; } char *tmpstr = SCMalloc(sizeof(char) * cd->content_len + 1); if (unlikely(tmpstr == NULL)) return; if (tmpstr != NULL) { for (i = 0; i < cd->content_len; i++) { if (isprint(cd->content[i])) tmpstr[i] = cd->content[i]; else tmpstr[i] = '.'; } tmpstr[i] = '\0'; SCLogDebug("Uricontent: \"%s\"", tmpstr); SCFree(tmpstr); } else { SCLogDebug("Uricontent: "); for (i = 0; i < cd->content_len; i++) SCLogDebug("%c", cd->content[i]); } SCLogDebug("Uricontent_id: %"PRIu32, cd->id); SCLogDebug("Uricontent_len: %"PRIu16, cd->content_len); SCLogDebug("Depth: %"PRIu16, cd->depth); SCLogDebug("Offset: %"PRIu16, cd->offset); SCLogDebug("Within: %"PRIi32, cd->within); SCLogDebug("Distance: %"PRIi32, cd->distance); SCLogDebug("flags: %u ", cd->flags); SCLogDebug("negated: %s ", cd->flags & DETECT_CONTENT_NEGATED ? "true" : "false"); SCLogDebug("relative match next: %s ", cd->flags & DETECT_CONTENT_RELATIVE_NEXT ? "true" : "false"); SCLogDebug("-----------"); } /** * \brief Setup the detecturicontent keyword data from the string defined in * the rule set. * \param contentstr Pointer to the string which has been defined in the rule */ DetectContentData *DoDetectUricontentSetup (char *contentstr) { DetectContentData *cd = NULL; char *str = NULL; uint16_t len; int flags; int ret; ret = DetectContentDataParse("uricontent", contentstr, &str, &len, &flags); if (ret == -1) { return NULL; } cd = SCMalloc(sizeof(DetectContentData) + len); if (unlikely(cd == NULL)) { SCFree(str); exit(EXIT_FAILURE); } memset(cd, 0, sizeof(DetectContentData) + len); if (flags == DETECT_CONTENT_NEGATED) cd->flags |= DETECT_CONTENT_NEGATED; cd->content = (uint8_t *)cd + sizeof(DetectContentData); memcpy(cd->content, str, len); cd->content_len = len; /* Prepare Boyer Moore context for searching faster */ cd->bm_ctx = BoyerMooreCtxInit(cd->content, cd->content_len); cd->depth = 0; cd->offset = 0; cd->within = 0; cd->distance = 0; SCFree(str); return cd; } /** * \brief Creates a SigMatch for the uricontent keyword being sent as argument, * and appends it to the Signature(s). * * \param de_ctx Pointer to the detection engine context * \param s Pointer to signature for the current Signature being parsed * from the rules * \param contentstr Pointer to the string holding the keyword value * * \retval 0 on success, -1 on failure */ int DetectUricontentSetup (DetectEngineCtx *de_ctx, Signature *s, char *contentstr) { SCEnter(); DetectContentData *cd = NULL; SigMatch *sm = NULL; if (s->alproto != ALPROTO_UNKNOWN && s->alproto != ALPROTO_HTTP) { SCLogError(SC_ERR_CONFLICTING_RULE_KEYWORDS, "rule contains " "conflicting keywords."); goto error; } cd = DoDetectUricontentSetup(contentstr); if (cd == NULL) goto error; sm = SigMatchAlloc(); if (sm == NULL) goto error; sm->type = DETECT_CONTENT; sm->ctx = (void *)cd; /* Flagged the signature as to inspect the app layer data */ s->flags |= SIG_FLAG_APPLAYER; s->alproto = ALPROTO_HTTP; cd->id = DetectUricontentGetId(de_ctx->mpm_pattern_id_store, cd); SigMatchAppendSMToList(s, sm, DETECT_SM_LIST_UMATCH); SCReturnInt(0); error: if (cd != NULL) SCFree(cd); if (sm != NULL) SCFree(sm); SCReturnInt(-1); } /** * \brief Checks if the content sent as the argument, has a uricontent which * has been provided in the rule. This match function matches the * normalized http uri against the given rule using multi pattern * search algorithms. * * \param det_ctx Pointer to the detection engine thread context * \param content Pointer to the uri content currently being matched * \param content_len Content_len of the received uri content * * \retval 1 if the uri contents match; 0 no match */ static inline int DoDetectAppLayerUricontentMatch (DetectEngineThreadCtx *det_ctx, uint8_t *uri, uint16_t uri_len, uint8_t flags) { int ret = 0; /* run the pattern matcher against the uri */ if (det_ctx->sgh->mpm_uricontent_maxlen > uri_len) { SCLogDebug("not searching as pkt payload is smaller than the " "largest uricontent length we need to match"); } else { SCLogDebug("search: (%p, maxlen %" PRIu32 ", sgh->sig_cnt " "%" PRIu32 ")", det_ctx->sgh, det_ctx->sgh-> mpm_uricontent_maxlen, det_ctx->sgh->sig_cnt); ret += UriPatternSearch(det_ctx, uri, uri_len, flags); SCLogDebug("post search: cnt %" PRIu32, ret); } return ret; } /** * \brief Run the pattern matcher against the uri(s) * * We run against _all_ uri(s) we have as the pattern matcher will * flag each sig that has a match. We need to do this for all uri(s) * to not miss possible events. * * \param f locked flow * \param htp_state initialized htp state * * \warning Make sure the flow/state is locked * \todo what should we return? Just the fact that we matched? */ uint32_t DetectUricontentInspectMpm(DetectEngineThreadCtx *det_ctx, Flow *f, HtpState *htp_state, uint8_t flags) { SCEnter(); uint32_t cnt = 0; int idx = 0; htp_tx_t *tx = NULL; /* locking the flow, we will inspect the htp state */ FLOWLOCK_RDLOCK(f); if (htp_state == NULL || htp_state->connp == NULL) { SCLogDebug("no HTTP state / no connp"); FLOWLOCK_UNLOCK(f); SCReturnUInt(0U); } idx = AppLayerTransactionGetInspectId(f); if (idx == -1) { goto end; } int size = (int)list_size(htp_state->connp->conn->transactions); for (; idx < size; idx++) { tx = list_get(htp_state->connp->conn->transactions, idx); if (tx == NULL || tx->request_uri_normalized == NULL) continue; cnt += DoDetectAppLayerUricontentMatch(det_ctx, (uint8_t *) bstr_ptr(tx->request_uri_normalized), bstr_len(tx->request_uri_normalized), flags); } end: FLOWLOCK_UNLOCK(f); SCReturnUInt(cnt); } /* * UNITTTESTS */ #ifdef UNITTESTS #include "stream-tcp-reassemble.h" /** \test Test case where path traversal has been sent as a path string in the * HTTP URL and normalized path string is checked */ static int HTTPUriTest01(void) { int result = 0; Flow f; uint8_t httpbuf1[] = "GET /../../images.gif HTTP/1.1\r\nHost: www.ExA" "mPlE.cOM\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; int r = 0; memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; StreamTcpInitConfig(TRUE); r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER|STREAM_START| STREAM_EOF, httpbuf1, httplen1); if (r != 0) { printf("AppLayerParse failed: r(%d) != 0: ", r); goto end; } HtpState *htp_state = f.alstate; if (htp_state == NULL) { printf("no http state: "); goto end; } htp_tx_t *tx = list_get(htp_state->connp->conn->transactions, 0); if (tx->request_method_number != M_GET || tx->request_protocol_number != HTTP_1_1) { goto end; } if ((tx->parsed_uri->hostname == NULL) || (bstr_cmpc(tx->parsed_uri->hostname, "www.example.com") != 0)) { goto end; } if ((tx->parsed_uri->path == NULL) || (bstr_cmpc(tx->parsed_uri->path, "/images.gif") != 0)) { goto end; } result = 1; end: StreamTcpFreeConfig(TRUE); FLOW_DESTROY(&f); return result; } /** \test Test case where path traversal has been sent in special characters in * HEX encoding in the HTTP URL and normalized path string is checked */ static int HTTPUriTest02(void) { int result = 0; Flow f; HtpState *htp_state = NULL; uint8_t httpbuf1[] = "GET /%2e%2e/images.gif HTTP/1.1\r\nHost: www.ExA" "mPlE.cOM\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; int r = 0; memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; StreamTcpInitConfig(TRUE); r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER|STREAM_START| STREAM_EOF, httpbuf1, httplen1); if (r != 0) { printf("AppLayerParse failed: r(%d) != 0: ", r); goto end; } htp_state = f.alstate; if (htp_state == NULL) { printf("no http state: "); goto end; } htp_tx_t *tx = list_get(htp_state->connp->conn->transactions, 0); if (tx->request_method_number != M_GET || tx->request_protocol_number != HTTP_1_1) { goto end; } if ((tx->parsed_uri->hostname == NULL) || (bstr_cmpc(tx->parsed_uri->hostname, "www.example.com") != 0)) { goto end; } if ((tx->parsed_uri->path == NULL) || (bstr_cmpc(tx->parsed_uri->path, "/images.gif") != 0)) { goto end; } result = 1; end: StreamTcpFreeConfig(TRUE); if (htp_state != NULL) HTPStateFree(htp_state); FLOW_DESTROY(&f); return result; } /** \test Test case where NULL character has been sent in HEX encoding in the * HTTP URL and normalized path string is checked */ static int HTTPUriTest03(void) { int result = 0; Flow f; HtpState *htp_state = NULL; uint8_t httpbuf1[] = "GET%00 /images.gif HTTP/1.1\r\nHost: www.ExA" "mPlE.cOM\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; int r = 0; memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; StreamTcpInitConfig(TRUE); r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER|STREAM_START| STREAM_EOF, httpbuf1, httplen1); if (r != 0) { printf("AppLayerParse failed: r(%d) != 0: ", r); goto end; } htp_state = f.alstate; if (htp_state == NULL) { printf("no http state: "); goto end; } htp_tx_t *tx = list_get(htp_state->connp->conn->transactions, 0); if (tx->request_method_number != M_UNKNOWN || tx->request_protocol_number != HTTP_1_1) { goto end; } if ((tx->parsed_uri->hostname == NULL) || (bstr_cmpc(tx->parsed_uri->hostname, "www.example.com") != 0)) { goto end; } if ((tx->parsed_uri->path == NULL) || (bstr_cmpc(tx->parsed_uri->path, "/images.gif") != 0)) { goto end; } result = 1; end: StreamTcpFreeConfig(TRUE); if (htp_state != NULL) HTPStateFree(htp_state); FLOW_DESTROY(&f); return result; } /** \test Test case where self referencing directories request has been sent * in the HTTP URL and normalized path string is checked */ static int HTTPUriTest04(void) { int result = 0; Flow f; HtpState *htp_state = NULL; uint8_t httpbuf1[] = "GET /./././images.gif HTTP/1.1\r\nHost: www.ExA" "mPlE.cOM\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; int r = 0; memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; StreamTcpInitConfig(TRUE); r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER|STREAM_START| STREAM_EOF, httpbuf1, httplen1); if (r != 0) { printf("AppLayerParse failed: r(%d) != 0: ", r); goto end; } htp_state = f.alstate; if (htp_state == NULL) { printf("no http state: "); goto end; } htp_tx_t *tx = list_get(htp_state->connp->conn->transactions, 0); if (tx->request_method_number != M_GET || tx->request_protocol_number != HTTP_1_1) { goto end; } if ((tx->parsed_uri->hostname == NULL) || (bstr_cmpc(tx->parsed_uri->hostname, "www.example.com") != 0)) { goto end; } if ((tx->parsed_uri->path == NULL) || (bstr_cmpc(tx->parsed_uri->path, "/images.gif") != 0)) { goto end; } result = 1; end: StreamTcpFreeConfig(TRUE); if (htp_state != NULL) HTPStateFree(htp_state); FLOW_DESTROY(&f); return result; } /** * \test Checks if a uricontent is registered in a Signature */ int DetectUriSigTest01(void) { SigMatch *sm = NULL; int result = 0; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; Signature *s = NULL; memset(&th_v, 0, sizeof(th_v)); DetectEngineCtx *de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" "\" Test uricontent\"; " "content:\"me\"; uricontent:\"me\"; sid:1;)"); if (s == NULL) { goto end; } SigGroupBuild(de_ctx); DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); BUG_ON(de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL); sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH]; if (sm->type == DETECT_CONTENT) { result = 1; } else { result = 0; } end: if (de_ctx != NULL) SigGroupCleanup(de_ctx); if (de_ctx != NULL) SigCleanSignatures(de_ctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, det_ctx); if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); return result; } /** \test Check the signature working to alert when http_cookie is matched . */ static int DetectUriSigTest02(void) { int result = 0; Flow f; uint8_t httpbuf1[] = "POST /one HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" " hellocatch\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; Packet *p = NULL; Signature *s = NULL; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; HtpState *http_state = NULL; memset(&th_v, 0, sizeof(th_v)); memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); p = UTHBuildPacket(httpbuf1, httplen1, IPPROTO_TCP); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; p->flow = &f; p->flowflags |= FLOW_PKT_TOSERVER; p->flowflags |= FLOW_PKT_ESTABLISHED; p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; f.alproto = ALPROTO_HTTP; StreamTcpInitConfig(TRUE); DetectEngineCtx *de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->mpm_matcher = MPM_B2G; de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"foo\"; sid:1;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"one\"; sid:2;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"oisf\"; sid:3;)"); if (s == NULL) { goto end; } SigGroupBuild(de_ctx); DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); if (r != 0) { printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); goto end; } http_state = f.alstate; if (http_state == NULL) { printf("no http state: "); goto end; } /* do detect */ SigMatchSignatures(&th_v, de_ctx, det_ctx, p); if ((PacketAlertCheck(p, 1))) { printf("sig: 1 alerted, but it should not\n"); goto end; } else if (!PacketAlertCheck(p, 2)) { printf("sig: 2 did not alerted, but it should\n"); goto end; } else if ((PacketAlertCheck(p, 3))) { printf("sig: 3 alerted, but it should not\n"); goto end; } result = 1; end: //if (http_state != NULL) HTPStateFree(http_state); if (de_ctx != NULL) SigCleanSignatures(de_ctx); if (de_ctx != NULL) SigGroupCleanup(de_ctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, det_ctx); if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); StreamTcpFreeConfig(TRUE); FLOW_DESTROY(&f); UTHFreePackets(&p, 1); return result; } /** \test Check the working of search once per packet only in applayer * match */ static int DetectUriSigTest03(void) { int result = 0; Flow f; HtpState *http_state = NULL; uint8_t httpbuf1[] = "POST /one HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" " hellocatch\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ uint8_t httpbuf2[] = "POST /oneself HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" " hellocatch\r\n\r\n"; uint32_t httplen2 = sizeof(httpbuf2) - 1; /* minus the \0 */ TcpSession ssn; Packet *p = NULL; Signature *s = NULL; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; memset(&th_v, 0, sizeof(th_v)); memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); p = UTHBuildPacket(httpbuf1, httplen1, IPPROTO_TCP); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; p->flow = &f; p->flowflags |= FLOW_PKT_TOSERVER; p->flowflags |= FLOW_PKT_ESTABLISHED; p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; f.alproto = ALPROTO_HTTP; StreamTcpInitConfig(TRUE); DetectEngineCtx *de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->mpm_matcher = MPM_B2G; de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"foo\"; sid:1;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"one\"; sid:2;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"self\"; sid:3;)"); if (s == NULL) { goto end; } SigGroupBuild(de_ctx); DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); if (r != 0) { printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); goto end; } /* do detect */ SigMatchSignatures(&th_v, de_ctx, det_ctx, p); if ((PacketAlertCheck(p, 1))) { printf("sig 1 alerted, but it should not: "); goto end; } else if (!PacketAlertCheck(p, 2)) { printf("sig 2 did not alert, but it should: "); goto end; } else if ((PacketAlertCheck(p, 3))) { printf("sig 3 alerted, but it should not: "); goto end; } r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf2, httplen2); if (r != 0) { printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); goto end; } http_state = f.alstate; if (http_state == NULL) { printf("no http state: "); goto end; } /* do detect */ SigMatchSignatures(&th_v, de_ctx, det_ctx, p); if ((PacketAlertCheck(p, 1))) { printf("sig 1 alerted, but it should not (chunk 2): "); goto end; } else if (PacketAlertCheck(p, 2)) { printf("sig 2 alerted, but it should not (chunk 2): "); goto end; } else if (!(PacketAlertCheck(p, 3))) { printf("sig 3 did not alert, but it should (chunk 2): "); goto end; } result = 1; end: if (de_ctx != NULL) SigGroupCleanup(de_ctx); if (de_ctx != NULL) SigCleanSignatures(de_ctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, det_ctx); if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); StreamTcpFreeConfig(TRUE); FLOW_DESTROY(&f); UTHFreePackets(&p, 1); return result; } /** * \test Check that modifiers of content apply only to content keywords * and the same for uricontent modifiers */ static int DetectUriSigTest04(void) { int result = 0; Signature *s = NULL; DetectEngineCtx *de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"foo\"; sid:1;)"); if (s == NULL || s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] != NULL || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 1 failed to parse: "); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";sid:1;)"); if (s == NULL || s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 2 failed to parse: "); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; sid:1;)"); if (s == NULL || s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || ((DetectContentData *)s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->depth != 15 || ((DetectContentData *)s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->offset != 5 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 3 failed to parse: "); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "content:\"foo\"; uricontent:\"bar\";" " depth:10; offset: 5; sid:1;)"); if (s == NULL || s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || ((DetectContentData *)s->sm_lists[DETECT_SM_LIST_UMATCH]->ctx)->depth != 15 || ((DetectContentData *)s->sm_lists[DETECT_SM_LIST_UMATCH]->ctx)->offset != 5 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 4 failed to parse: "); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; within:3; sid:1;)"); if (s != NULL) { printf("sig 5 failed to parse: "); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; distance:3; sid:1;)"); if (s != NULL) { printf("sig 6 failed to parse: "); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; content:" "\"two_contents\"; within:30; sid:1;)"); if (s == NULL) { goto end; } else if (s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->depth != 15 || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->offset != 5 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx)->within != 30 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 7 failed to parse: "); DetectContentPrint((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; uricontent:" "\"two_uricontents\"; within:30; sid:1;)"); if (s == NULL) { goto end; } else if (s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->depth != 15 || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->offset != 5 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx)->within != 30 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 8 failed to parse: "); DetectUricontentPrint((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; content:" "\"two_contents\"; distance:30; sid:1;)"); if (s == NULL) { goto end; } else if ( s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->depth != 15 || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->offset != 5 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx)->distance != 30 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 9 failed to parse: "); DetectContentPrint((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; uricontent:" "\"two_uricontents\"; distance:30; sid:1;)"); if (s == NULL) { goto end; } else if ( s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->depth != 15 || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->offset != 5 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx)->distance != 30 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 10 failed to parse: "); DetectUricontentPrint((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx); goto end; } s = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent and content\"; " "uricontent:\"foo\"; content:\"bar\";" " depth:10; offset: 5; uricontent:" "\"two_uricontents\"; distance:30; " "within:60; content:\"two_contents\";" " within:70; distance:45; sid:1;)"); if (s == NULL) { printf("sig 10 failed to parse: "); goto end; } if (s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists[DETECT_SM_LIST_PMATCH] == NULL) { printf("umatch %p or pmatch %p: ", s->sm_lists[DETECT_SM_LIST_UMATCH], s->sm_lists[DETECT_SM_LIST_PMATCH]); goto end; } if ( ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->depth != 15 || ((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx)->offset != 5 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx)->distance != 30 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx)->within != 60 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx)->distance != 45 || ((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx)->within != 70 || s->sm_lists[DETECT_SM_LIST_MATCH] != NULL) { printf("sig 10 failed to parse, content not setup properly: "); DetectContentPrint((DetectContentData*) s->sm_lists[DETECT_SM_LIST_PMATCH]->ctx); DetectUricontentPrint((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx); DetectContentPrint((DetectContentData*) s->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx); goto end; } result = 1; end: if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); return result; } /** \test Check the modifiers for uricontent and content * match */ static int DetectUriSigTest05(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; Flow f; HtpState *http_state = NULL; uint8_t httpbuf1[] = "POST /one/two/three HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" " hellocatch\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; Packet *p = NULL; Signature *s = NULL; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; memset(&th_v, 0, sizeof(th_v)); memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); p = UTHBuildPacket(httpbuf1, httplen1, IPPROTO_TCP); p->tcph->th_seq = htonl(1000); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; p->flow = &f; p->flowflags |= FLOW_PKT_TOSERVER; p->flowflags |= FLOW_PKT_ESTABLISHED; p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; f.alproto = ALPROTO_HTTP; f.proto = p->proto; StreamTcpInitConfig(TRUE); StreamMsg *stream_msg = StreamMsgGetFromPool(); if (stream_msg == NULL) { printf("no stream_msg: "); goto end; } memcpy(stream_msg->data.data, httpbuf1, httplen1); stream_msg->data.data_len = httplen1; ssn.toserver_smsg_head = stream_msg; ssn.toserver_smsg_tail = stream_msg; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->mpm_matcher = MPM_B2G; de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; uricontent:\"foo\"; sid:1;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; uricontent:\"one\"; content:\"two\"; sid:2;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; uricontent:\"one\"; offset:1; depth:10; " "uricontent:\"two\"; distance:1; within: 4; uricontent:\"three\"; " "distance:1; within: 6; sid:3;)"); if (s == NULL) { goto end; } SigGroupBuild(de_ctx); DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); if (r != 0) { printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); goto end; } /* do detect */ SigMatchSignatures(&th_v, de_ctx, det_ctx, p); http_state = f.alstate; if (http_state == NULL) { printf("no http state: "); goto end; } if ((PacketAlertCheck(p, 1))) { printf("sig: 1 alerted, but it should not: "); goto end; } else if (! PacketAlertCheck(p, 2)) { printf("sig: 2 did not alert, but it should: "); goto end; } else if (! (PacketAlertCheck(p, 3))) { printf("sig: 3 did not alert, but it should: "); goto end; } result = 1; end: if (de_ctx != NULL) SigGroupCleanup(de_ctx); if (de_ctx != NULL) SigCleanSignatures(de_ctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, det_ctx); if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); StreamTcpFreeConfig(TRUE); FLOW_DESTROY(&f); UTHFreePackets(&p, 1); return result; } /** \test Check the modifiers for uricontent and content * match */ static int DetectUriSigTest06(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; Flow f; HtpState *http_state = NULL; uint8_t httpbuf1[] = "POST /one/two/three HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" " hellocatch\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; Packet *p = NULL; Signature *s = NULL; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; TCPHdr tcp_hdr; memset(&th_v, 0, sizeof(th_v)); memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); memset(&tcp_hdr, 0, sizeof(tcp_hdr)); p = UTHBuildPacket(httpbuf1, httplen1, IPPROTO_TCP); p->tcph->th_seq = htonl(1000); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; p->flow = &f; p->flowflags |= FLOW_PKT_TOSERVER; p->flowflags |= FLOW_PKT_ESTABLISHED; p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; f.alproto = ALPROTO_HTTP; f.proto = p->proto; StreamTcpInitConfig(TRUE); StreamMsg *stream_msg = StreamMsgGetFromPool(); if (stream_msg == NULL) { printf("no stream_msg: "); goto end; } memcpy(stream_msg->data.data, httpbuf1, httplen1); stream_msg->data.data_len = httplen1; ssn.toserver_smsg_head = stream_msg; ssn.toserver_smsg_tail = stream_msg; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->mpm_matcher = MPM_B2G; de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"foo\"; content:\"bar\"; sid:1;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"one\"; offset:1; depth:10; " "content:\"one\"; offset:1; depth:10; " "uricontent:\"two\"; distance:1; within: 4; " "content:\"two\"; distance:1; within: 4; " "uricontent:\"three\"; distance:1; within: 6; " "content:\"/three\"; distance:0; within: 7; " "sid:2;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"one\"; offset:1; depth:10; " "uricontent:\"two\"; distance:1; within: 4; " "uricontent:\"three\"; distance:1; within: 6; " "sid:3;)"); if (s == NULL) { goto end; } SigGroupBuild(de_ctx); DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); if (r != 0) { printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); goto end; } /* do detect */ SigMatchSignatures(&th_v, de_ctx, det_ctx, p); http_state = f.alstate; if (http_state == NULL) { printf("no http state: "); goto end; } if ((PacketAlertCheck(p, 1))) { printf("sig: 1 alerted, but it should not:"); goto end; } else if (! PacketAlertCheck(p, 2)) { printf("sig: 2 did not alert, but it should:"); goto end; } else if (! (PacketAlertCheck(p, 3))) { printf("sig: 3 did not alert, but it should:"); goto end; } result = 1; end: if (de_ctx != NULL) SigGroupCleanup(de_ctx); if (de_ctx != NULL) SigCleanSignatures(de_ctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, det_ctx); if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); StreamTcpFreeConfig(TRUE); FLOW_DESTROY(&f); UTHFreePackets(&p, 1); return result; } /** \test Check the modifiers for uricontent and content * match */ static int DetectUriSigTest07(void) { int result = 0; Flow f; HtpState *http_state = NULL; uint8_t httpbuf1[] = "POST /one/two/three HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" " hellocatch\r\n\r\n"; uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ TcpSession ssn; Packet *p = NULL; Signature *s = NULL; ThreadVars th_v; DetectEngineThreadCtx *det_ctx = NULL; memset(&th_v, 0, sizeof(th_v)); memset(&f, 0, sizeof(f)); memset(&ssn, 0, sizeof(ssn)); p = UTHBuildPacket(httpbuf1, httplen1, IPPROTO_TCP); FLOW_INITIALIZE(&f); f.protoctx = (void *)&ssn; f.flags |= FLOW_IPV4; p->flow = &f; p->flowflags |= FLOW_PKT_TOSERVER; p->flowflags |= FLOW_PKT_ESTABLISHED; p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; f.alproto = ALPROTO_HTTP; StreamTcpInitConfig(TRUE); DetectEngineCtx *de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) { goto end; } de_ctx->mpm_matcher = MPM_B2G; de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"foo\"; content:\"bar\"; sid:1;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"one\"; offset:1; depth:10; " "content:\"one\"; offset:1; depth:10; " "uricontent:\"two\"; distance:3; within: 4; " "content:\"two\"; distance:1; within: 4; " "uricontent:\"three\"; distance:1; within: 6; " "content:\"/three\"; distance:0; within: 7; " "sid:2;)"); if (s == NULL) { goto end; } s = s->next = SigInit(de_ctx,"alert tcp any any -> any any (msg:" "\" Test uricontent\"; " "uricontent:\"one\"; offset:1; depth:10; " "uricontent:\"two\"; distance:1; within: 4; " "uricontent:\"six\"; distance:1; within: 6; " "sid:3;)"); if (s == NULL) { goto end; } SigGroupBuild(de_ctx); DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); int r = AppLayerParse(NULL, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); if (r != 0) { printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); goto end; } /* do detect */ SigMatchSignatures(&th_v, de_ctx, det_ctx, p); http_state = f.alstate; if (http_state == NULL) { printf("no http state: "); goto end; } if (PacketAlertCheck(p, 1)) { printf("sig: 1 alerted, but it should not:"); goto end; } else if (PacketAlertCheck(p, 2)) { printf("sig: 2 alerted, but it should not:"); goto end; } else if (PacketAlertCheck(p, 3)) { printf("sig: 3 alerted, but it should not:"); goto end; } result = 1; end: if (de_ctx != NULL) SigGroupCleanup(de_ctx); if (de_ctx != NULL) SigCleanSignatures(de_ctx); if (det_ctx != NULL) DetectEngineThreadCtxDeinit(&th_v, det_ctx); if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); StreamTcpFreeConfig(TRUE); FLOW_DESTROY(&f); UTHFreePackets(&p, 1); return result; } /** * \test Test content for dce sig. */ int DetectUriSigTest08(void) { 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\"; uricontent:\"\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Test content for dce sig. */ int DetectUriSigTest09(void) { 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\"; uricontent:\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Test content for dce sig. */ int DetectUriSigTest10(void) { 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\"; uricontent:\"boo; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Test content for dce sig. */ int DetectUriSigTest11(void) { 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\"; uricontent:boo\"; sid:238012;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriSigTest12(void) { DetectEngineCtx *de_ctx = NULL; DetectContentData *ud = 0; Signature *s = NULL; int result = 0; de_ctx = DetectEngineCtxInit(); if (de_ctx == NULL) goto end; de_ctx->flags |= DE_QUIET; s = de_ctx->sig_list = SigInit(de_ctx, "alert udp any any -> any any " "(msg:\"test\"; uricontent: !\"boo\"; sid:238012;)"); if (de_ctx->sig_list == NULL) { printf("de_ctx->sig_list == NULL: "); goto end; } if (s->sm_lists_tail[DETECT_SM_LIST_UMATCH] == NULL || s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx == NULL) { printf("de_ctx->pmatch_tail == NULL && de_ctx->pmatch_tail->ctx == NULL: "); goto end; } ud = (DetectContentData *)s->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx; result = (strncmp("boo", (char *)ud->content, ud->content_len) == 0); end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest13(void) { 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\"; uricontent:\"|\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest14(void) { 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\"; uricontent:\"|af\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest15(void) { 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\"; uricontent:\"af|\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest16(void) { 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\"; uricontent:\"|af|\"; sid:1;)"); if (de_ctx->sig_list == NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest17(void) { 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\"; uricontent:\"aast|\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest18(void) { 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\"; uricontent:\"aast|af\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest19(void) { 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\"; uricontent:\"aast|af|\"; sid:1;)"); if (de_ctx->sig_list == NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest20(void) { 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\"; uricontent:\"|af|asdf\"; sid:1;)"); if (de_ctx->sig_list == NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest21(void) { 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\"; uricontent:\"|af|af|\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest22(void) { 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\"; uricontent:\"|af|af|af\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest23(void) { 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\"; uricontent:\"|af|af|af|\"; sid:1;)"); if (de_ctx->sig_list == NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } /** * \test Parsing test */ int DetectUriContentParseTest24(void) { 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\"; uricontent:\"\"; sid:1;)"); if (de_ctx->sig_list != NULL) { result = 0; goto end; } end: SigGroupCleanup(de_ctx); SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } int DetectUricontentSigTest08(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; if ( (de_ctx = DetectEngineCtxInit()) == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any " "(content:\"one\"; content:\"one\"; http_uri; sid:1;)"); if (de_ctx->sig_list == NULL) { printf("de_ctx->sig_list == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL\n"); goto end; } DetectContentData *cd = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx; DetectContentData *ud = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx; if (cd->id == ud->id) goto end; result = 1; end: SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } int DetectUricontentSigTest09(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; if ( (de_ctx = DetectEngineCtxInit()) == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any " "(uricontent:\"one\"; content:\"one\"; sid:1;)"); if (de_ctx->sig_list == NULL) { printf("de_ctx->sig_list == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL\n"); goto end; } DetectContentData *cd = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx; DetectContentData *ud = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx; if (cd->id == ud->id) goto end; result = 1; end: SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } int DetectUricontentSigTest10(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; if ( (de_ctx = DetectEngineCtxInit()) == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any " "(uricontent:\"one\"; content:\"one\"; content:\"one\"; http_uri; " "content:\"two\"; content:\"one\"; sid:1;)"); if (de_ctx->sig_list == NULL) { printf("de_ctx->sig_list == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL\n"); goto end; } DetectContentData *cd1 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->prev->ctx; DetectContentData *cd2 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->ctx; DetectContentData *cd3 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx; DetectContentData *ud1 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->prev->ctx; DetectContentData *ud2 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx; if (cd1->id != 1 || cd2->id != 2 || cd3->id != 1 || ud1->id != 0 || ud2->id != 0) goto end; result = 1; end: SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } int DetectUricontentSigTest11(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; if ( (de_ctx = DetectEngineCtxInit()) == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any " "(content:\"one\"; http_uri; content:\"one\"; uricontent:\"one\"; " "content:\"two\"; content:\"one\"; sid:1;)"); if (de_ctx->sig_list == NULL) { printf("de_ctx->sig_list == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL\n"); goto end; } DetectContentData *cd1 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->prev->ctx; DetectContentData *cd2 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->ctx; DetectContentData *cd3 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx; DetectContentData *ud1 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->prev->ctx; DetectContentData *ud2 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx; if (cd1->id != 1 || cd2->id != 2 || cd3->id != 1 || ud1->id != 0 || ud2->id != 0) goto end; result = 1; end: SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } int DetectUricontentSigTest12(void) { DetectEngineCtx *de_ctx = NULL; int result = 0; if ( (de_ctx = DetectEngineCtxInit()) == NULL) goto end; de_ctx->flags |= DE_QUIET; de_ctx->sig_list = SigInit(de_ctx, "alert icmp any any -> any any " "(content:\"one\"; http_uri; content:\"one\"; uricontent:\"one\"; " "content:\"two\"; content:\"one\"; http_uri; content:\"one\"; " "uricontent:\"one\"; uricontent: \"two\"; " "content:\"one\"; content:\"three\"; sid:1;)"); if (de_ctx->sig_list == NULL) { printf("de_ctx->sig_list == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH] == NULL\n"); goto end; } if (de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL) { printf("de_ctx->sig_list->sm_lists[DETECT_SM_LIST_UMATCH] == NULL\n"); goto end; } DetectContentData *cd1 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->prev->prev->prev->ctx; DetectContentData *cd2 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->prev->prev->ctx; DetectContentData *cd3 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->prev->ctx; DetectContentData *cd4 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->prev->ctx; DetectContentData *cd5 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_PMATCH]->ctx; DetectContentData *ud1 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->prev->prev->prev->prev->ctx; DetectContentData *ud2 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->prev->prev->prev->ctx; DetectContentData *ud3 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->prev->prev->ctx; DetectContentData *ud4 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->prev->ctx; DetectContentData *ud5 = de_ctx->sig_list->sm_lists_tail[DETECT_SM_LIST_UMATCH]->ctx; if (cd1->id != 1 || cd2->id != 2 || cd3->id != 1 || cd4->id != 1 || cd5->id != 4 || ud1->id != 0 || ud2->id != 0 || ud3->id != 0 || ud4->id != 0 || ud5->id != 3) { goto end; } result = 1; end: SigCleanSignatures(de_ctx); DetectEngineCtxFree(de_ctx); return result; } #endif /* UNITTESTS */ void HttpUriRegisterTests(void) { #ifdef UNITTESTS UtRegisterTest("HTTPUriTest01", HTTPUriTest01, 1); UtRegisterTest("HTTPUriTest02", HTTPUriTest02, 1); UtRegisterTest("HTTPUriTest03", HTTPUriTest03, 1); UtRegisterTest("HTTPUriTest04", HTTPUriTest04, 1); UtRegisterTest("DetectUriSigTest01", DetectUriSigTest01, 1); UtRegisterTest("DetectUriSigTest02", DetectUriSigTest02, 1); UtRegisterTest("DetectUriSigTest03", DetectUriSigTest03, 1); UtRegisterTest("DetectUriSigTest04 - Modifiers", DetectUriSigTest04, 1); UtRegisterTest("DetectUriSigTest05 - Inspection", DetectUriSigTest05, 1); UtRegisterTest("DetectUriSigTest06 - Inspection", DetectUriSigTest06, 1); UtRegisterTest("DetectUriSigTest07 - Inspection", DetectUriSigTest07, 1); UtRegisterTest("DetectUriSigTest08", DetectUriSigTest08, 1); UtRegisterTest("DetectUriSigTest09", DetectUriSigTest09, 1); UtRegisterTest("DetectUriSigTest10", DetectUriSigTest10, 1); UtRegisterTest("DetectUriSigTest11", DetectUriSigTest11, 1); UtRegisterTest("DetectUriSigTest12", DetectUriSigTest12, 1); UtRegisterTest("DetectUriContentParseTest13", DetectUriContentParseTest13, 1); UtRegisterTest("DetectUriContentParseTest14", DetectUriContentParseTest14, 1); UtRegisterTest("DetectUriContentParseTest15", DetectUriContentParseTest15, 1); UtRegisterTest("DetectUriContentParseTest16", DetectUriContentParseTest16, 1); UtRegisterTest("DetectUriContentParseTest17", DetectUriContentParseTest17, 1); UtRegisterTest("DetectUriContentParseTest18", DetectUriContentParseTest18, 1); UtRegisterTest("DetectUriContentParseTest19", DetectUriContentParseTest19, 1); UtRegisterTest("DetectUriContentParseTest20", DetectUriContentParseTest20, 1); UtRegisterTest("DetectUriContentParseTest21", DetectUriContentParseTest21, 1); UtRegisterTest("DetectUriContentParseTest22", DetectUriContentParseTest22, 1); UtRegisterTest("DetectUriContentParseTest23", DetectUriContentParseTest23, 1); UtRegisterTest("DetectUriContentParseTest24", DetectUriContentParseTest24, 1); UtRegisterTest("DetectUricontentSigTest08", DetectUricontentSigTest08, 1); UtRegisterTest("DetectUricontentSigTest09", DetectUricontentSigTest09, 1); UtRegisterTest("DetectUricontentSigTest10", DetectUricontentSigTest10, 1); UtRegisterTest("DetectUricontentSigTest11", DetectUricontentSigTest11, 1); UtRegisterTest("DetectUricontentSigTest12", DetectUricontentSigTest12, 1); #endif /* UNITTESTS */ }