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1358 lines
38 KiB
C
1358 lines
38 KiB
C
/* Copyright (C) 2007-2017 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*
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* Performs payload matching functions
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*/
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#include "suricata-common.h"
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#include "suricata.h"
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#include "decode.h"
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#include "detect.h"
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#include "detect-engine.h"
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#include "detect-parse.h"
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#include "detect-engine-content-inspection.h"
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#include "detect-engine-prefilter.h"
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#include "detect-engine-state.h"
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#include "detect-engine-payload.h"
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#include "stream.h"
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#include "stream-tcp.h"
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#include "util-debug.h"
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#include "util-print.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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#include "util-validate.h"
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#include "util-mpm-ac.h"
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struct StreamMpmData {
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DetectEngineThreadCtx *det_ctx;
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const MpmCtx *mpm_ctx;
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};
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static int StreamMpmFunc(void *cb_data, const uint8_t *data, const uint32_t data_len)
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{
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struct StreamMpmData *smd = cb_data;
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if (data_len >= smd->mpm_ctx->minlen) {
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#ifdef DEBUG
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smd->det_ctx->stream_mpm_cnt++;
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smd->det_ctx->stream_mpm_size += data_len;
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#endif
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(void)mpm_table[smd->mpm_ctx->mpm_type].Search(smd->mpm_ctx,
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&smd->det_ctx->mtcs, &smd->det_ctx->pmq,
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data, data_len);
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}
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return 0;
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}
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static void PrefilterPktStream(DetectEngineThreadCtx *det_ctx,
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Packet *p, const void *pectx)
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{
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SCEnter();
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const MpmCtx *mpm_ctx = (MpmCtx *)pectx;
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/* for established packets inspect any stream we may have queued up */
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if (p->flags & PKT_DETECT_HAS_STREAMDATA) {
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SCLogDebug("PRE det_ctx->raw_stream_progress %"PRIu64,
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det_ctx->raw_stream_progress);
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struct StreamMpmData stream_mpm_data = { det_ctx, mpm_ctx };
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StreamReassembleRaw(p->flow->protoctx, p,
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StreamMpmFunc, &stream_mpm_data,
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&det_ctx->raw_stream_progress,
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false /* mpm doesn't use min inspect depth */);
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SCLogDebug("POST det_ctx->raw_stream_progress %"PRIu64,
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det_ctx->raw_stream_progress);
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} else {
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SCLogDebug("NOT p->flags & PKT_DETECT_HAS_STREAMDATA");
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}
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/* packets that have not been added to the stream will be inspected
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* as if they are stream chunks */
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if ((p->flags & (PKT_NOPAYLOAD_INSPECTION|PKT_STREAM_ADD)) == 0)
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{
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if (p->payload_len >= mpm_ctx->minlen) {
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#ifdef DEBUG
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det_ctx->payload_mpm_cnt++;
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det_ctx->payload_mpm_size += p->payload_len;
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#endif
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(void)mpm_table[mpm_ctx->mpm_type].Search(mpm_ctx,
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&det_ctx->mtc, &det_ctx->pmq,
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p->payload, p->payload_len);
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}
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}
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}
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int PrefilterPktStreamRegister(DetectEngineCtx *de_ctx,
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SigGroupHead *sgh, MpmCtx *mpm_ctx)
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{
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return PrefilterAppendPayloadEngine(de_ctx, sgh,
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PrefilterPktStream, mpm_ctx, NULL, "stream");
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}
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static void PrefilterPktPayload(DetectEngineThreadCtx *det_ctx,
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Packet *p, const void *pectx)
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{
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SCEnter();
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const MpmCtx *mpm_ctx = (MpmCtx *)pectx;
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if (p->payload_len < mpm_ctx->minlen)
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SCReturn;
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(void)mpm_table[mpm_ctx->mpm_type].Search(mpm_ctx,
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&det_ctx->mtc, &det_ctx->pmq,
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p->payload, p->payload_len);
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}
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int PrefilterPktPayloadRegister(DetectEngineCtx *de_ctx,
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SigGroupHead *sgh, MpmCtx *mpm_ctx)
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{
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return PrefilterAppendPayloadEngine(de_ctx, sgh,
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PrefilterPktPayload, mpm_ctx, NULL, "payload");
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}
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/**
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* \brief Do the content inspection & validation for a signature
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*
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* \param de_ctx Detection engine context
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* \param det_ctx Detection engine thread context
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* \param s Signature to inspect
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* \param f flow (for pcre flowvar storage)
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* \param p Packet
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*
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* \retval 0 no match
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* \retval 1 match
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*/
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int DetectEngineInspectPacketPayload(DetectEngineCtx *de_ctx,
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DetectEngineThreadCtx *det_ctx, const Signature *s, Flow *f, Packet *p)
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{
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SCEnter();
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int r = 0;
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if (s->sm_arrays[DETECT_SM_LIST_PMATCH] == NULL) {
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SCReturnInt(0);
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}
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#ifdef DEBUG
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det_ctx->payload_persig_cnt++;
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det_ctx->payload_persig_size += p->payload_len;
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#endif
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det_ctx->buffer_offset = 0;
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det_ctx->discontinue_matching = 0;
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det_ctx->inspection_recursion_counter = 0;
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det_ctx->replist = NULL;
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r = DetectEngineContentInspection(de_ctx, det_ctx,
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s, s->sm_arrays[DETECT_SM_LIST_PMATCH],
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p, f, p->payload, p->payload_len, 0,
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DETECT_CI_FLAGS_SINGLE, DETECT_ENGINE_CONTENT_INSPECTION_MODE_PAYLOAD);
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if (r == 1) {
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SCReturnInt(1);
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}
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SCReturnInt(0);
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}
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/**
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* \brief Do the content inspection & validation for a sigmatch list
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*
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* \param de_ctx Detection engine context
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* \param det_ctx Detection engine thread context
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* \param s Signature to inspect
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* \param smd array of matches to eval
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* \param f flow (for pcre flowvar storage)
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* \param p Packet
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*
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* \retval 0 no match
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* \retval 1 match
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*/
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static int DetectEngineInspectStreamUDPPayload(DetectEngineCtx *de_ctx,
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DetectEngineThreadCtx *det_ctx,
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const Signature *s, const SigMatchData *smd,
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Flow *f, Packet *p)
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{
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SCEnter();
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int r = 0;
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if (smd == NULL) {
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SCReturnInt(0);
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}
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#ifdef DEBUG
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det_ctx->payload_persig_cnt++;
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det_ctx->payload_persig_size += p->payload_len;
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#endif
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det_ctx->buffer_offset = 0;
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det_ctx->discontinue_matching = 0;
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det_ctx->inspection_recursion_counter = 0;
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det_ctx->replist = NULL;
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r = DetectEngineContentInspection(de_ctx, det_ctx, s, smd,
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p, f, p->payload, p->payload_len, 0, DETECT_CI_FLAGS_SINGLE,
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DETECT_ENGINE_CONTENT_INSPECTION_MODE_PAYLOAD);
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if (r == 1) {
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SCReturnInt(1);
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}
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SCReturnInt(0);
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}
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struct StreamContentInspectData {
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DetectEngineCtx *de_ctx;
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DetectEngineThreadCtx *det_ctx;
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const Signature *s;
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Flow *f;
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};
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static int StreamContentInspectFunc(void *cb_data, const uint8_t *data, const uint32_t data_len)
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{
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SCEnter();
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int r = 0;
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struct StreamContentInspectData *smd = cb_data;
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#ifdef DEBUG
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smd->det_ctx->stream_persig_cnt++;
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smd->det_ctx->stream_persig_size += data_len;
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#endif
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smd->det_ctx->buffer_offset = 0;
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smd->det_ctx->discontinue_matching = 0;
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smd->det_ctx->inspection_recursion_counter = 0;
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r = DetectEngineContentInspection(smd->de_ctx, smd->det_ctx,
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smd->s, smd->s->sm_arrays[DETECT_SM_LIST_PMATCH],
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NULL, smd->f, (uint8_t *)data, data_len, 0, 0, //TODO
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DETECT_ENGINE_CONTENT_INSPECTION_MODE_STREAM);
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if (r == 1) {
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SCReturnInt(1);
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}
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SCReturnInt(0);
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}
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/**
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* \brief Do the content inspection & validation for a signature
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* on the raw stream
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*
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* \param de_ctx Detection engine context
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* \param det_ctx Detection engine thread context
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* \param s Signature to inspect
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* \param f flow (for pcre flowvar storage)
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*
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* \retval 0 no match
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* \retval 1 match
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*/
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int DetectEngineInspectStreamPayload(DetectEngineCtx *de_ctx,
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DetectEngineThreadCtx *det_ctx, const Signature *s,
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Flow *f, Packet *p)
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{
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SCEnter();
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SCLogDebug("FLUSH? %s", (s->flags & SIG_FLAG_FLUSH)?"true":"false");
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uint64_t unused;
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struct StreamContentInspectData inspect_data = { de_ctx, det_ctx, s, f };
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int r = StreamReassembleRaw(f->protoctx, p,
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StreamContentInspectFunc, &inspect_data,
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&unused, ((s->flags & SIG_FLAG_FLUSH) != 0));
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return r;
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}
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struct StreamContentInspectEngineData {
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DetectEngineCtx *de_ctx;
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DetectEngineThreadCtx *det_ctx;
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const Signature *s;
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const SigMatchData *smd;
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Flow *f;
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};
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static int StreamContentInspectEngineFunc(void *cb_data, const uint8_t *data, const uint32_t data_len)
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{
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SCEnter();
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int r = 0;
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struct StreamContentInspectEngineData *smd = cb_data;
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#ifdef DEBUG
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smd->det_ctx->stream_persig_cnt++;
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smd->det_ctx->stream_persig_size += data_len;
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#endif
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smd->det_ctx->buffer_offset = 0;
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smd->det_ctx->discontinue_matching = 0;
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smd->det_ctx->inspection_recursion_counter = 0;
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r = DetectEngineContentInspection(smd->de_ctx, smd->det_ctx,
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smd->s, smd->smd,
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NULL, smd->f, (uint8_t *)data, data_len, 0, 0, // TODO
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DETECT_ENGINE_CONTENT_INSPECTION_MODE_STREAM);
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if (r == 1) {
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SCReturnInt(1);
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}
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SCReturnInt(0);
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}
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/**
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* \brief inspect engine for stateful rules
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*
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* Caches results as it may be called multiple times if we inspect
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* multiple transactions in one packet.
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*
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* Returns "can't match" if depth is reached.
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*/
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int DetectEngineInspectStream(DetectEngineCtx *de_ctx, DetectEngineThreadCtx *det_ctx,
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const struct DetectEngineAppInspectionEngine_ *engine, const Signature *s, Flow *f,
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uint8_t flags, void *alstate, void *txv, uint64_t tx_id)
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{
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Packet *p = det_ctx->p; /* TODO: get rid of this HACK */
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/* in certain sigs, e.g. 'alert dns', which apply to both tcp and udp
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* we can get called for UDP. Then we simply inspect the packet payload */
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if (p->proto == IPPROTO_UDP) {
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return DetectEngineInspectStreamUDPPayload(de_ctx, det_ctx, s, engine->smd, f, p);
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/* for other non-TCP protocols we assume match */
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} else if (p->proto != IPPROTO_TCP)
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return DETECT_ENGINE_INSPECT_SIG_MATCH;
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TcpSession *ssn = f->protoctx;
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if (ssn == NULL)
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return DETECT_ENGINE_INSPECT_SIG_CANT_MATCH;
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SCLogDebug("pre-inspect det_ctx->raw_stream_progress %"PRIu64" FLUSH? %s",
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det_ctx->raw_stream_progress,
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(s->flags & SIG_FLAG_FLUSH)?"true":"false");
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uint64_t unused;
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struct StreamContentInspectEngineData inspect_data = { de_ctx, det_ctx, s, engine->smd, f };
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int match = StreamReassembleRaw(f->protoctx, p,
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StreamContentInspectEngineFunc, &inspect_data,
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&unused, ((s->flags & SIG_FLAG_FLUSH) != 0));
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bool is_last = false;
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if (flags & STREAM_TOSERVER) {
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TcpStream *stream = &ssn->client;
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if (stream->flags & STREAMTCP_STREAM_FLAG_DEPTH_REACHED)
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is_last = true;
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} else {
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TcpStream *stream = &ssn->server;
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if (stream->flags & STREAMTCP_STREAM_FLAG_DEPTH_REACHED)
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is_last = true;
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}
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SCLogDebug("%s ran stream for sid %u on packet %"PRIu64" and we %s",
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is_last? "LAST:" : "normal:", s->id, p->pcap_cnt,
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match ? "matched" : "didn't match");
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if (match) {
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return DETECT_ENGINE_INSPECT_SIG_MATCH;
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} else {
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if (is_last) {
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//SCLogNotice("last, so DETECT_ENGINE_INSPECT_SIG_CANT_MATCH");
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return DETECT_ENGINE_INSPECT_SIG_CANT_MATCH;
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}
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/* TODO maybe we can set 'CANT_MATCH' for EOF too? */
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return DETECT_ENGINE_INSPECT_SIG_NO_MATCH;
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}
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}
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#ifdef UNITTESTS
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/** \test Not the first but the second occurence of "abc" should be used
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* for the 2nd match */
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static int PayloadTestSig01 (void)
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{
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uint8_t *buf = (uint8_t *)
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"abcabcd";
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uint16_t buflen = strlen((char *)buf);
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Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
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int result = 0;
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char sig[] = "alert tcp any any -> any any (content:\"abc\"; content:\"d\"; distance:0; within:1; sid:1;)";
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if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
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result = 0;
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goto end;
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}
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result = 1;
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end:
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if (p != NULL)
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UTHFreePacket(p);
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return result;
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}
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|
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/** \test Nocase matching */
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static int PayloadTestSig02 (void)
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{
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uint8_t *buf = (uint8_t *)
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"abcaBcd";
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uint16_t buflen = strlen((char *)buf);
|
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Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
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int result = 0;
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|
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char sig[] = "alert tcp any any -> any any (content:\"abc\"; nocase; content:\"d\"; distance:0; within:1; sid:1;)";
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if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
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result = 0;
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goto end;
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}
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|
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result = 1;
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end:
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if (p != NULL)
|
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UTHFreePacket(p);
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return result;
|
|
}
|
|
|
|
/** \test Negative distance matching */
|
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static int PayloadTestSig03 (void)
|
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{
|
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uint8_t *buf = (uint8_t *)
|
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"abcaBcd";
|
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uint16_t buflen = strlen((char *)buf);
|
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Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
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int result = 0;
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|
|
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char sig[] = "alert tcp any any -> any any (content:\"aBc\"; nocase; content:\"abca\"; distance:-10; within:4; sid:1;)";
|
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if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
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result = 0;
|
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goto end;
|
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}
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|
|
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result = 1;
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end:
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if (p != NULL)
|
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UTHFreePacket(p);
|
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return result;
|
|
}
|
|
|
|
/**
|
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* \test Test multiple relative matches.
|
|
*/
|
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static int PayloadTestSig04(void)
|
|
{
|
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uint8_t *buf = (uint8_t *)"now this is is big big string now";
|
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uint16_t buflen = strlen((char *)buf);
|
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Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
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int result = 0;
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|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
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"content:\"this\"; content:\"is\"; within:6; content:\"big\"; within:8; "
|
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"content:\"string\"; within:8; sid:1;)";
|
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if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
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result = 0;
|
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goto end;
|
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}
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|
|
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result = 1;
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end:
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if (p != NULL)
|
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UTHFreePacket(p);
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return result;
|
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}
|
|
|
|
/**
|
|
* \test Test multiple relative matches.
|
|
*/
|
|
static int PayloadTestSig05(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"now this is is is big big big string now";
|
|
uint16_t buflen = strlen((char *)buf);
|
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Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
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int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"this\"; content:\"is\"; within:9; content:\"big\"; within:12; "
|
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"content:\"string\"; within:8; sid:1;)";
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
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result = 0;
|
|
goto end;
|
|
}
|
|
|
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result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test multiple relative matches.
|
|
*/
|
|
static int PayloadTestSig06(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this this now is is big string now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"now\"; content:\"this\"; content:\"is\"; within:12; content:\"big\"; within:8; "
|
|
"content:\"string\"; within:8; sid:1;)";
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test multiple relative matches.
|
|
*/
|
|
static int PayloadTestSig07(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)" thus thus is a big";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"thus\"; offset:8; content:\"is\"; within:6; content:\"big\"; within:8; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test multiple relative matches with negative matches
|
|
* and show the need for det_ctx->discontinue_matching.
|
|
*/
|
|
static int PayloadTestSig08(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"we need to fix this and yes fix this now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"fix\"; content:\"this\"; within:6; content:!\"and\"; distance:0; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) != 1) {
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test pcre recursive matching.
|
|
*/
|
|
static int PayloadTestSig09(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super duper nova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"pcre:/super/; content:\"nova\"; within:7; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test invalid sig.
|
|
*/
|
|
static int PayloadTestSig10(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super duper nova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert udp any any -> any any (msg:\"crash\"; "
|
|
"byte_test:4,>,2,0,relative; sid:11;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 1) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test invalid sig.
|
|
*/
|
|
static int PayloadTestSig11(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super duper nova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert udp any any -> any any (msg:\"crash\"; "
|
|
"byte_jump:1,0,relative; sid:11;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 1) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test invalid sig.
|
|
*/
|
|
static int PayloadTestSig12(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super duper nova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert udp any any -> any any (msg:\"crash\"; "
|
|
"isdataat:10,relative; sid:11;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 1) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Used to check the working of recursion_limit counter.
|
|
*/
|
|
static int PayloadTestSig13(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
|
|
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
uint16_t mpm_type = mpm_default_matcher;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"aa\"; content:\"aa\"; distance:0; content:\"aa\"; distance:0; "
|
|
"byte_test:1,>,200,0,relative; sid:1;)";
|
|
|
|
struct timeval tv_start, tv_end, tv_diff;
|
|
|
|
gettimeofday(&tv_start, NULL);
|
|
|
|
do {
|
|
DecodeThreadVars dtv;
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
|
|
memset(&dtv, 0, sizeof(DecodeThreadVars));
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
if (de_ctx == NULL) {
|
|
printf("de_ctx == NULL: ");
|
|
goto end;
|
|
}
|
|
de_ctx->inspection_recursion_limit = 3000;
|
|
|
|
de_ctx->flags |= DE_QUIET;
|
|
de_ctx->mpm_matcher = mpm_type;
|
|
|
|
de_ctx->sig_list = SigInit(de_ctx, sig);
|
|
if (de_ctx->sig_list == NULL) {
|
|
printf("signature == NULL: ");
|
|
goto end;
|
|
}
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
if (PacketAlertCheck(p, de_ctx->sig_list->id) != 1) {
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
SigGroupCleanup(de_ctx);
|
|
SigCleanSignatures(de_ctx);
|
|
|
|
if (det_ctx != NULL)
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
|
|
if (de_ctx != NULL)
|
|
DetectEngineCtxFree(de_ctx);
|
|
} while (0);
|
|
|
|
gettimeofday(&tv_end, NULL);
|
|
|
|
tv_diff.tv_sec = tv_end.tv_sec - tv_start.tv_sec;
|
|
tv_diff.tv_usec = tv_end.tv_usec - tv_start.tv_usec;
|
|
|
|
printf("%ld.%06ld\n", (long int)tv_diff.tv_sec, (long int)tv_diff.tv_usec);
|
|
|
|
result = 1;
|
|
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test normal & negated matching, both absolute and relative
|
|
*/
|
|
static int PayloadTestSig14(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b4) Gecko/20090423 Firefox/3.6 GTB5";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (content:\"User-Agent|3A| Mozilla/5.0 |28|Macintosh|3B| \"; content:\"Firefox/3.\"; distance:0; content:!\"Firefox/3.6.12\"; distance:-10; content:!\"Mozilla/5.0 |28|Macintosh|3B| U|3B| Intel Mac OS X 10.5|3B| en-US|3B| rv|3A|1.9.1b4|29| Gecko/20090423 Firefox/3.6 GTB5\"; sid:1; rev:1;)";
|
|
|
|
//char sig[] = "alert tcp any any -> any any (content:\"User-Agent: Mozilla/5.0 (Macintosh; \"; content:\"Firefox/3.\"; distance:0; content:!\"Firefox/3.6.12\"; distance:-10; content:!\"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b4) Gecko/20090423 Firefox/3.6 GTB5\"; sid:1; rev:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 1) {
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig15(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super duper nova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"nova\"; isdataat:18,relative; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig16(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super duper nova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"nova\"; isdataat:!20,relative; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig17(void)
|
|
{
|
|
uint8_t buf[] = { 0xEB, 0x29, 0x25, 0x38, 0x78, 0x25, 0x38, 0x78, 0x25 };
|
|
uint16_t buflen = 9;
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"%\"; depth:4; offset:0; "
|
|
"content:\"%\"; within:2; distance:1; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig18(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x35, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,dec,relative; "
|
|
"content:\"|0C 0D 0E 0F|\"; distance:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig19(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x35, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,hex,relative; "
|
|
"content:\"|0C 0D 0E 0F|\"; distance:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig20(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x35, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,dec,relative; "
|
|
"content:\"|06 35 07 08|\"; offset:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig21(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x36, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,dec,relative; "
|
|
"content:\"|03 04 05 06|\"; depth:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig22(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x36, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,dec,relative; "
|
|
"content:\"|09 0A 0B 0C|\"; within:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig23(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x32, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x33, 0x0B, 0x0C, 0x0D,
|
|
0x32, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,dec,relative; "
|
|
"byte_extract:1,3,two,string,dec,relative; "
|
|
"byte_test:1,=,one,two,string,dec,relative; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig24(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x32, /* the last byte is 2 */
|
|
0x07, 0x08, 0x33, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|01 02 03 04|\"; "
|
|
"byte_extract:1,2,one,string,dec,relative; "
|
|
"byte_jump:1,one,string,dec,relative; "
|
|
"content:\"|0D 0E 0F|\"; distance:0; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* \test Test negative byte extract.
|
|
*/
|
|
static int PayloadTestSig25(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x35, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|35 07 08 09|\"; "
|
|
"byte_extract:1,-4,one,string,dec,relative; "
|
|
"content:\"|0C 0D 0E 0F|\"; distance:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* \test Test negative byte extract.
|
|
*/
|
|
static int PayloadTestSig26(void)
|
|
{
|
|
uint8_t buf[] = {
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x35, /* the last byte is 2 */
|
|
0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
|
|
0x0E, 0x0F,
|
|
};
|
|
uint16_t buflen = sizeof(buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"content:\"|35 07 08 09|\"; "
|
|
"byte_extract:1,-3000,one,string,dec,relative; "
|
|
"content:\"|0C 0D 0E 0F|\"; distance:one; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) != 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* \test Test packet/stream sigs
|
|
*/
|
|
static int PayloadTestSig27(void)
|
|
{
|
|
uint8_t buf[] = "dummypayload";
|
|
uint16_t buflen = sizeof(buf) - 1;
|
|
int result = 0;
|
|
|
|
Packet *p = UTHBuildPacket(buf, buflen, IPPROTO_TCP);
|
|
|
|
char sig[] = "alert tcp any any -> any any (content:\"dummy\"; "
|
|
"depth:5; sid:1;)";
|
|
|
|
p->flags |= PKT_STREAM_ADD;
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) != 1)
|
|
goto end;
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* \test Test packet/stream sigs
|
|
*/
|
|
static int PayloadTestSig28(void)
|
|
{
|
|
uint8_t buf[] = "dummypayload";
|
|
uint16_t buflen = sizeof(buf) - 1;
|
|
int result = 0;
|
|
|
|
Packet *p = UTHBuildPacket(buf, buflen, IPPROTO_TCP);
|
|
|
|
char sig[] = "alert tcp any any -> any any (content:\"payload\"; "
|
|
"offset:4; depth:12; sid:1;)";
|
|
|
|
p->flags |= PKT_STREAM_ADD;
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) != 1)
|
|
goto end;
|
|
|
|
result = 1;
|
|
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test pcre recursive matching - bug #529
|
|
*/
|
|
static int PayloadTestSig29(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"this is a super dupernova in super nova now";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"dummy\"; "
|
|
"pcre:/^.{4}/; content:\"nova\"; within:4; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 1) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig30(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)
|
|
"xyonexxxxxxtwojunkonetwo";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (content:\"one\"; pcre:\"/^two/R\"; sid:1;)";
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
static int PayloadTestSig31(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)
|
|
"xyonexxxxxxtwojunkonetwo";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket( buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (content:\"one\"; pcre:\"/(fiv|^two)/R\"; sid:1;)";
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0) {
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test byte_jump.
|
|
*/
|
|
static int PayloadTestSig32(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"dummy2xxcardmessage";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket(buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"crash\"; "
|
|
"content:\"message\"; byte_jump:2,-14,string,dec,relative; content:\"card\"; within:4; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0)
|
|
goto end;
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test byte_test.
|
|
*/
|
|
static int PayloadTestSig33(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"dummy2xxcardmessage";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket(buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"crash\"; "
|
|
"content:\"message\"; byte_test:1,=,2,-14,string,dec,relative; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0)
|
|
goto end;
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* \test Test byte_extract.
|
|
*/
|
|
static int PayloadTestSig34(void)
|
|
{
|
|
uint8_t *buf = (uint8_t *)"dummy2xxcardmessage";
|
|
uint16_t buflen = strlen((char *)buf);
|
|
Packet *p = UTHBuildPacket(buf, buflen, IPPROTO_TCP);
|
|
int result = 0;
|
|
|
|
char sig[] = "alert tcp any any -> any any (msg:\"crash\"; "
|
|
"content:\"message\"; byte_extract:1,-14,boom,string,dec,relative; sid:1;)";
|
|
|
|
if (UTHPacketMatchSigMpm(p, sig, mpm_default_matcher) == 0)
|
|
goto end;
|
|
|
|
result = 1;
|
|
end:
|
|
if (p != NULL)
|
|
UTHFreePacket(p);
|
|
return result;
|
|
}
|
|
|
|
#endif /* UNITTESTS */
|
|
|
|
void PayloadRegisterTests(void)
|
|
{
|
|
#ifdef UNITTESTS
|
|
UtRegisterTest("PayloadTestSig01", PayloadTestSig01);
|
|
UtRegisterTest("PayloadTestSig02", PayloadTestSig02);
|
|
UtRegisterTest("PayloadTestSig03", PayloadTestSig03);
|
|
UtRegisterTest("PayloadTestSig04", PayloadTestSig04);
|
|
UtRegisterTest("PayloadTestSig05", PayloadTestSig05);
|
|
UtRegisterTest("PayloadTestSig06", PayloadTestSig06);
|
|
UtRegisterTest("PayloadTestSig07", PayloadTestSig07);
|
|
UtRegisterTest("PayloadTestSig08", PayloadTestSig08);
|
|
UtRegisterTest("PayloadTestSig09", PayloadTestSig09);
|
|
UtRegisterTest("PayloadTestSig10", PayloadTestSig10);
|
|
UtRegisterTest("PayloadTestSig11", PayloadTestSig11);
|
|
UtRegisterTest("PayloadTestSig12", PayloadTestSig12);
|
|
UtRegisterTest("PayloadTestSig13", PayloadTestSig13);
|
|
UtRegisterTest("PayloadTestSig14", PayloadTestSig14);
|
|
UtRegisterTest("PayloadTestSig15", PayloadTestSig15);
|
|
UtRegisterTest("PayloadTestSig16", PayloadTestSig16);
|
|
UtRegisterTest("PayloadTestSig17", PayloadTestSig17);
|
|
|
|
UtRegisterTest("PayloadTestSig18", PayloadTestSig18);
|
|
UtRegisterTest("PayloadTestSig19", PayloadTestSig19);
|
|
UtRegisterTest("PayloadTestSig20", PayloadTestSig20);
|
|
UtRegisterTest("PayloadTestSig21", PayloadTestSig21);
|
|
UtRegisterTest("PayloadTestSig22", PayloadTestSig22);
|
|
UtRegisterTest("PayloadTestSig23", PayloadTestSig23);
|
|
UtRegisterTest("PayloadTestSig24", PayloadTestSig24);
|
|
UtRegisterTest("PayloadTestSig25", PayloadTestSig25);
|
|
UtRegisterTest("PayloadTestSig26", PayloadTestSig26);
|
|
UtRegisterTest("PayloadTestSig27", PayloadTestSig27);
|
|
UtRegisterTest("PayloadTestSig28", PayloadTestSig28);
|
|
UtRegisterTest("PayloadTestSig29", PayloadTestSig29);
|
|
|
|
UtRegisterTest("PayloadTestSig30", PayloadTestSig30);
|
|
UtRegisterTest("PayloadTestSig31", PayloadTestSig31);
|
|
UtRegisterTest("PayloadTestSig32", PayloadTestSig32);
|
|
UtRegisterTest("PayloadTestSig33", PayloadTestSig33);
|
|
UtRegisterTest("PayloadTestSig34", PayloadTestSig34);
|
|
#endif /* UNITTESTS */
|
|
|
|
return;
|
|
}
|