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-rw-r--r--framework/src/suricata/src/detect-distance.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/framework/src/suricata/src/detect-distance.c b/framework/src/suricata/src/detect-distance.c
deleted file mode 100644
index a8284dbe..00000000
--- a/framework/src/suricata/src/detect-distance.c
+++ /dev/null
@@ -1,270 +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 Victor Julien <victor@inliniac.net>
- * \author Anoop Saldanha <anoopsaldanha@gmail.com>
- *
- * Implements the distance keyword
- */
-
-#include "suricata-common.h"
-
-#include "decode.h"
-
-#include "detect.h"
-#include "detect-parse.h"
-#include "detect-engine.h"
-#include "app-layer.h"
-#include "detect-parse.h"
-
-#include "detect-content.h"
-#include "detect-uricontent.h"
-#include "detect-pcre.h"
-#include "detect-byte-extract.h"
-
-#include "flow-var.h"
-
-#include "util-debug.h"
-#include "util-unittest.h"
-#include "detect-bytejump.h"
-#include "util-unittest-helper.h"
-
-static int DetectDistanceSetup(DetectEngineCtx *, Signature *, char *);
-void DetectDistanceRegisterTests(void);
-
-void DetectDistanceRegister(void)
-{
- sigmatch_table[DETECT_DISTANCE].name = "distance";
- sigmatch_table[DETECT_DISTANCE].desc = "indicates a relation between this content keyword and the content preceding it";
- sigmatch_table[DETECT_DISTANCE].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Payload_keywords#Distance";
- sigmatch_table[DETECT_DISTANCE].Match = NULL;
- sigmatch_table[DETECT_DISTANCE].Setup = DetectDistanceSetup;
- sigmatch_table[DETECT_DISTANCE].Free = NULL;
- sigmatch_table[DETECT_DISTANCE].RegisterTests = DetectDistanceRegisterTests;
-
- sigmatch_table[DETECT_DISTANCE].flags |= SIGMATCH_PAYLOAD;
-}
-
-static int DetectDistanceSetup (DetectEngineCtx *de_ctx, Signature *s,
- char *distancestr)
-{
- char *str = distancestr;
- char dubbed = 0;
- SigMatch *pm = NULL;
- int ret = -1;
-
- /* strip "'s */
- if (distancestr[0] == '\"' && distancestr[strlen(distancestr) - 1] == '\"') {
- str = SCStrdup(distancestr + 1);
- if (unlikely(str == NULL))
- goto end;
- str[strlen(distancestr) - 2] = '\0';
- dubbed = 1;
- }
-
- /* retrive the sm to apply the depth against */
- if (s->list != DETECT_SM_LIST_NOTSET) {
- pm = SigMatchGetLastSMFromLists(s, 2, DETECT_CONTENT, s->sm_lists_tail[s->list]);
- } else {
- pm = SigMatchGetLastSMFromLists(s, 28,
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_PMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_UMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HRUDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HCBDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_FILEDATA],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HHDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HRHDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HMDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HCDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HSCDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HSMDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HUADMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HHHDMATCH],
- DETECT_CONTENT, s->sm_lists_tail[DETECT_SM_LIST_HRHHDMATCH]);
- }
- if (pm == NULL) {
- SCLogError(SC_ERR_OFFSET_MISSING_CONTENT, "distance needs "
- "preceding content, uricontent option, http_client_body, "
- "http_server_body, http_header option, http_raw_header option, "
- "http_method option, http_cookie, http_raw_uri, "
- "http_stat_msg, http_stat_code, http_user_agent or "
- "file_data/dce_stub_data sticky buffer option");
- goto end;
- }
-
- /* verify other conditions */
- DetectContentData *cd = (DetectContentData *)pm->ctx;
- if (cd->flags & DETECT_CONTENT_DISTANCE) {
- SCLogError(SC_ERR_INVALID_SIGNATURE, "can't use multiple distances for the same content.");
- goto end;
- }
- if ((cd->flags & DETECT_CONTENT_DEPTH) || (cd->flags & DETECT_CONTENT_OFFSET)) {
- SCLogError(SC_ERR_INVALID_SIGNATURE, "can't use a relative "
- "keyword like within/distance with a absolute "
- "relative keyword like depth/offset for the same "
- "content." );
- goto end;
- }
- if (cd->flags & DETECT_CONTENT_NEGATED && cd->flags & DETECT_CONTENT_FAST_PATTERN) {
- SCLogError(SC_ERR_INVALID_SIGNATURE, "can't have a relative "
- "negated keyword set along with a fast_pattern");
- goto end;
- }
- if (cd->flags & DETECT_CONTENT_FAST_PATTERN_ONLY) {
- SCLogError(SC_ERR_INVALID_SIGNATURE, "can't have a relative "
- "keyword set along with a fast_pattern:only;");
- goto end;
- }
- if (str[0] != '-' && isalpha((unsigned char)str[0])) {
- SigMatch *bed_sm = DetectByteExtractRetrieveSMVar(str, s);
- if (bed_sm == NULL) {
- SCLogError(SC_ERR_INVALID_SIGNATURE, "unknown byte_extract var "
- "seen in distance - %s\n", str);
- goto end;
- }
- cd->distance = ((DetectByteExtractData *)bed_sm->ctx)->local_id;
- cd->flags |= DETECT_CONTENT_DISTANCE_BE;
- } else {
- cd->distance = strtol(str, NULL, 10);
- }
- cd->flags |= DETECT_CONTENT_DISTANCE;
-
- SigMatch *prev_pm = SigMatchGetLastSMFromLists(s, 4,
- DETECT_CONTENT, pm->prev,
- DETECT_PCRE, pm->prev);
- if (prev_pm == NULL) {
- ret = 0;
- goto end;
- }
- if (prev_pm->type == DETECT_CONTENT) {
- DetectContentData *cd = (DetectContentData *)prev_pm->ctx;
- if (cd->flags & DETECT_CONTENT_FAST_PATTERN_ONLY) {
- SCLogError(SC_ERR_INVALID_SIGNATURE, "previous keyword "
- "has a fast_pattern:only; set. Can't "
- "have relative keywords around a fast_pattern "
- "only content");
- goto end;
- }
- cd->flags |= DETECT_CONTENT_RELATIVE_NEXT;
- } else if (prev_pm->type == DETECT_PCRE) {
- DetectPcreData *pd = (DetectPcreData *)prev_pm->ctx;
- pd->flags |= DETECT_PCRE_RELATIVE_NEXT;
- }
-
- ret = 0;
- end:
- if (dubbed)
- SCFree(str);
- return ret;
-}
-
-#ifdef UNITTESTS
-
-static int DetectDistanceTest01(void)
-{
- int result = 0;
-
- DetectEngineCtx *de_ctx = DetectEngineCtxInit();
- if (de_ctx == NULL) {
- printf("no de_ctx: ");
- goto end;
- }
-
- de_ctx->mpm_matcher = MPM_B2G;
- de_ctx->flags |= DE_QUIET;
-
- de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any (content:\"|AA BB|\"; content:\"|CC DD EE FF 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE|\"; distance: 4; within: 19; sid:1; rev:1;)");
- if (de_ctx->sig_list == NULL) {
- printf("sig parse failed: ");
- goto end;
- }
-
- SigMatch *sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_PMATCH];
- if (sm == NULL) {
- printf("sm NULL: ");
- goto end;
- }
-
- sm = sm->next;
- if (sm == NULL) {
- printf("sm2 NULL: ");
- goto end;
- }
-
- DetectContentData *co = (DetectContentData *)sm->ctx;
- if (co == NULL) {
- printf("co == NULL: ");
- goto end;
- }
-
- if (co->distance != 4) {
- printf("distance %"PRIi32", expected 4: ", co->distance);
- goto end;
- }
-
- /* within needs to be 23: distance + content_len as Snort auto fixes this */
- if (co->within != 19) {
- printf("within %"PRIi32", expected 23: ", co->within);
- goto end;
- }
-
- result = 1;
-end:
- DetectEngineCtxFree(de_ctx);
- return result;
-}
-
-/**
- * \test DetectDistanceTestPacket01 is a test to check matches of
- * distance works, if the previous keyword is byte_jump and content
- * (bug 163)
- */
-int DetectDistanceTestPacket01 (void)
-{
- int result = 0;
- uint8_t buf[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint16_t buflen = sizeof(buf);
- Packet *p;
- p = UTHBuildPacket((uint8_t *)buf, buflen, IPPROTO_TCP);
-
- if (p == NULL)
- goto end;
-
- char sig[] = "alert tcp any any -> any any (msg:\"suricata test\"; "
- "byte_jump:1,2; content:\"|00|\"; "
- "within:1; distance:2; sid:98711212; rev:1;)";
-
- p->flowflags = FLOW_PKT_ESTABLISHED | FLOW_PKT_TOCLIENT;
- result = UTHPacketMatchSig(p, sig);
-
- UTHFreePacket(p);
-end:
- return result;
-}
-#endif /* UNITTESTS */
-
-void DetectDistanceRegisterTests(void)
-{
-#ifdef UNITTESTS
- UtRegisterTest("DetectDistanceTest01 -- distance / within mix", DetectDistanceTest01, 1);
- UtRegisterTest("DetectDistanceTestPacket01", DetectDistanceTestPacket01, 1);
-#endif /* UNITTESTS */
-}
-