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-rw-r--r--framework/src/suricata/src/detect-ack.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/framework/src/suricata/src/detect-ack.c b/framework/src/suricata/src/detect-ack.c
deleted file mode 100644
index 5a84c6f9..00000000
--- a/framework/src/suricata/src/detect-ack.c
+++ /dev/null
@@ -1,302 +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 Brian Rectanus <brectanu@gmail.com>
- *
- * Implements the "ack" keyword.
- */
-
-#include "suricata-common.h"
-#include "debug.h"
-#include "decode.h"
-#include "detect.h"
-
-#include "detect-parse.h"
-#include "detect-engine.h"
-#include "detect-engine-mpm.h"
-
-#include "detect-ack.h"
-
-#include "util-byte.h"
-#include "util-unittest.h"
-#include "util-unittest-helper.h"
-#include "util-debug.h"
-
-/* prototypes */
-static int DetectAckSetup(DetectEngineCtx *, Signature *, char *);
-static int DetectAckMatch(ThreadVars *, DetectEngineThreadCtx *,
- Packet *, Signature *, const SigMatchCtx *);
-static void DetectAckRegisterTests(void);
-static void DetectAckFree(void *);
-
-void DetectAckRegister(void)
-{
- sigmatch_table[DETECT_ACK].name = "ack";
- sigmatch_table[DETECT_ACK].desc = "check for a specific TCP acknowledgement number";
- sigmatch_table[DETECT_ACK].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Header_keywords#ack";
- sigmatch_table[DETECT_ACK].Match = DetectAckMatch;
- sigmatch_table[DETECT_ACK].Setup = DetectAckSetup;
- sigmatch_table[DETECT_ACK].Free = DetectAckFree;
- sigmatch_table[DETECT_ACK].RegisterTests = DetectAckRegisterTests;
-}
-
-/**
- * \internal
- * \brief This function is used to match packets with a given Ack number
- *
- * \param t pointer to thread vars
- * \param det_ctx pointer to the pattern matcher thread
- * \param p pointer to the current packet
- * \param m pointer to the sigmatch that we will cast into DetectAckData
- *
- * \retval 0 no match
- * \retval 1 match
- */
-static int DetectAckMatch(ThreadVars *t, DetectEngineThreadCtx *det_ctx,
- Packet *p, Signature *s, const SigMatchCtx *ctx)
-{
- const DetectAckData *data = (const DetectAckData *)ctx;
-
- /* This is only needed on TCP packets */
- if (!(PKT_IS_TCP(p)) || PKT_IS_PSEUDOPKT(p)) {
- return 0;
- }
-
- return (data->ack == TCP_GET_ACK(p)) ? 1 : 0;
-}
-
-/**
- * \internal
- * \brief this function is used to add the ack option into the 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 optstr pointer to the user provided options
- *
- * \retval 0 on Success
- * \retval -1 on Failure
- */
-static int DetectAckSetup(DetectEngineCtx *de_ctx, Signature *s, char *optstr)
-{
- DetectAckData *data = NULL;
- SigMatch *sm = NULL;
-
- data = SCMalloc(sizeof(DetectAckData));
- if (unlikely(data == NULL))
- goto error;
-
- sm = SigMatchAlloc();
- if (sm == NULL)
- goto error;
-
- sm->type = DETECT_ACK;
-
- if (-1 == ByteExtractStringUint32(&data->ack, 10, 0, optstr)) {
- goto error;
- }
- sm->ctx = (SigMatchCtx*)data;
-
- SigMatchAppendSMToList(s, sm, DETECT_SM_LIST_MATCH);
- s->flags |= SIG_FLAG_REQUIRE_PACKET;
-
- return 0;
-
-error:
- if (data)
- SCFree(data);
- if (sm)
- SigMatchFree(sm);
- return -1;
-
-}
-
-/**
- * \internal
- * \brief this function will free memory associated with ack option
- *
- * \param data pointer to ack configuration data
- */
-static void DetectAckFree(void *ptr)
-{
- DetectAckData *data = (DetectAckData *)ptr;
- SCFree(data);
-}
-
-
-#ifdef UNITTESTS
-/**
- * \internal
- * \brief This test tests sameip success and failure.
- */
-static int DetectAckSigTest01Real(int mpm_type)
-{
- Packet *p1 = NULL;
- Packet *p2 = NULL;
- Packet *p3 = NULL;
- ThreadVars th_v;
- DetectEngineThreadCtx *det_ctx;
- int result = 0;
-
- memset(&th_v, 0, sizeof(th_v));
-
- /* TCP w/ack=42 */
- p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
- p1->tcph->th_ack = htonl(42);
-
- /* TCP w/ack=100 */
- p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP);
- p2->tcph->th_ack = htonl(100);
-
- /* ICMP */
- p3 = UTHBuildPacket(NULL, 0, IPPROTO_ICMP);
-
- DetectEngineCtx *de_ctx = DetectEngineCtxInit();
- if (de_ctx == NULL) {
- goto end;
- }
-
- de_ctx->mpm_matcher = mpm_type;
- de_ctx->flags |= DE_QUIET;
-
- /* These three are crammed in here as there is no Parse */
- if (SigInit(de_ctx,
- "alert tcp any any -> any any "
- "(msg:\"Testing ack\";ack:foo;sid:1;)") != NULL)
- {
- printf("invalid ack accepted: ");
- goto cleanup_engine;
- }
- if (SigInit(de_ctx,
- "alert tcp any any -> any any "
- "(msg:\"Testing ack\";ack:9999999999;sid:1;)") != NULL)
- {
- printf("overflowing ack accepted: ");
- goto cleanup_engine;
- }
- if (SigInit(de_ctx,
- "alert tcp any any -> any any "
- "(msg:\"Testing ack\";ack:-100;sid:1;)") != NULL)
- {
- printf("negative ack accepted: ");
- goto cleanup_engine;
- }
-
- de_ctx->sig_list = SigInit(de_ctx,
- "alert tcp any any -> any any "
- "(msg:\"Testing ack\";ack:41;sid:1;)");
- if (de_ctx->sig_list == NULL) {
- goto cleanup_engine;
- }
-
- de_ctx->sig_list->next = SigInit(de_ctx,
- "alert tcp any any -> any any "
- "(msg:\"Testing ack\";ack:42;sid:2;)");
- if (de_ctx->sig_list->next == NULL) {
- goto cleanup_engine;
- }
-
- SigGroupBuild(de_ctx);
- DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
-
- SigMatchSignatures(&th_v, de_ctx, det_ctx, p1);
- if (PacketAlertCheck(p1, 1) != 0) {
- printf("sid 1 alerted, but should not have: ");
- goto cleanup;
- }
- if (PacketAlertCheck(p1, 2) == 0) {
- printf("sid 2 did not alert, but should have: ");
- goto cleanup;
- }
-
- SigMatchSignatures(&th_v, de_ctx, det_ctx, p2);
- if (PacketAlertCheck(p2, 1) != 0) {
- printf("sid 1 alerted, but should not have: ");
- goto cleanup;
- }
- if (PacketAlertCheck(p2, 2) != 0) {
- printf("sid 2 alerted, but should not have: ");
- goto cleanup;
- }
-
- SigMatchSignatures(&th_v, de_ctx, det_ctx, p3);
- if (PacketAlertCheck(p3, 1) != 0) {
- printf("sid 1 alerted, but should not have: ");
- goto cleanup;
- }
- if (PacketAlertCheck(p3, 2) != 0) {
- printf("sid 2 alerted, but should not have: ");
- goto cleanup;
- }
-
- result = 1;
-
-cleanup:
- SigGroupCleanup(de_ctx);
- SigCleanSignatures(de_ctx);
-
- DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
-
-cleanup_engine:
- DetectEngineCtxFree(de_ctx);
-
-end:
- return result;
-}
-
-/**
- * \test DetectAckSigTest01B2g tests sameip under B2g MPM
- */
-static int DetectAckSigTest01B2g(void)
-{
- return DetectAckSigTest01Real(MPM_B2G);
-}
-
-/**
- * \test DetectAckSigTest01B2g tests sameip under B3g MPM
- */
-static int DetectAckSigTest01B3g(void)
-{
- return DetectAckSigTest01Real(MPM_B3G);
-}
-
-/**
- * \test DetectAckSigTest01B2g tests sameip under WuManber MPM
- */
-static int DetectAckSigTest01Wm(void)
-{
- return DetectAckSigTest01Real(MPM_WUMANBER);
-}
-
-#endif /* UNITTESTS */
-
-/**
- * \internal
- * \brief This function registers unit tests for DetectAck
- */
-static void DetectAckRegisterTests(void)
-{
-#ifdef UNITTESTS
- UtRegisterTest("DetectAckSigTest01B2g", DetectAckSigTest01B2g, 1);
- UtRegisterTest("DetectAckSigTest01B3g", DetectAckSigTest01B3g, 1);
- UtRegisterTest("DetectAckSigTest01Wm", DetectAckSigTest01Wm, 1);
-#endif /* UNITTESTS */
-}
-