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951 lines
27 KiB
C
951 lines
27 KiB
C
/* Copyright (C) 2012-2021 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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* Implements the iprep keyword
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*/
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#include "suricata-common.h"
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#include "decode.h"
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#include "detect.h"
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#include "threads.h"
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#include "flow.h"
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#include "flow-bit.h"
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#include "flow-util.h"
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#include "detect-iprep.h"
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#include "util-spm.h"
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#include "app-layer-parser.h"
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#include "detect-parse.h"
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#include "detect-engine.h"
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#include "detect-engine-mpm.h"
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#include "detect-engine-state.h"
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#include "detect-engine-uint.h"
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#include "detect-engine-build.h"
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#include "util-debug.h"
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#include "util-byte.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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#include "util-fmemopen.h"
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#include "util-validate.h"
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#include "reputation.h"
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#include "host.h"
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static int DetectIPRepMatch (DetectEngineThreadCtx *, Packet *,
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const Signature *, const SigMatchCtx *);
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static int DetectIPRepSetup (DetectEngineCtx *, Signature *, const char *);
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void DetectIPRepFree (DetectEngineCtx *, void *);
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#ifdef UNITTESTS
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static void IPRepRegisterTests(void);
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#endif
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void DetectIPRepRegister (void)
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{
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sigmatch_table[DETECT_IPREP].name = "iprep";
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sigmatch_table[DETECT_IPREP].desc = "match on the IP reputation information for a host";
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sigmatch_table[DETECT_IPREP].url = "/rules/ip-reputation-rules.html#iprep";
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sigmatch_table[DETECT_IPREP].Match = DetectIPRepMatch;
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sigmatch_table[DETECT_IPREP].Setup = DetectIPRepSetup;
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sigmatch_table[DETECT_IPREP].Free = DetectIPRepFree;
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#ifdef UNITTESTS
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sigmatch_table[DETECT_IPREP].RegisterTests = IPRepRegisterTests;
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#endif
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/* this is compatible to ip-only signatures */
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sigmatch_table[DETECT_IPREP].flags |= SIGMATCH_IPONLY_COMPAT;
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}
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static inline int8_t GetRep(const SReputation *r, const uint8_t cat, const uint32_t version)
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{
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/* allow higher versions as this happens during
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* rule reload */
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if (r != NULL && r->version >= version) {
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return r->rep[cat];
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}
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return -1;
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}
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/** \returns: -2 no host, -1 no rep entry, 0-127 rep values */
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static int8_t GetHostRepSrc(Packet *p, uint8_t cat, uint32_t version)
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{
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if (p->flags & PKT_HOST_SRC_LOOKED_UP && p->host_src == NULL) {
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return -2;
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} else if (p->host_src != NULL) {
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Host *h = (Host *)p->host_src;
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HostLock(h);
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/* use_cnt: 1 for having iprep, 1 for packet ref */
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DEBUG_VALIDATE_BUG_ON(h->iprep != NULL && SC_ATOMIC_GET(h->use_cnt) < 2);
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int8_t val = GetRep(h->iprep, cat, version);
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HostUnlock(h);
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return val;
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} else {
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Host *h = HostLookupHostFromHash(&(p->src));
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p->flags |= PKT_HOST_SRC_LOOKED_UP;
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if (h == NULL)
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return -2;
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HostReference(&p->host_src, h);
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/* use_cnt: 1 for having iprep, 1 for HostLookupHostFromHash,
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* 1 for HostReference to packet */
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DEBUG_VALIDATE_BUG_ON(h->iprep != NULL && SC_ATOMIC_GET(h->use_cnt) < 3);
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int8_t val = GetRep(h->iprep, cat, version);
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HostRelease(h); /* use_cnt >= 2: 1 for iprep, 1 for packet ref */
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return val;
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}
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}
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static int8_t GetHostRepDst(Packet *p, uint8_t cat, uint32_t version)
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{
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if (p->flags & PKT_HOST_DST_LOOKED_UP && p->host_dst == NULL) {
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return -2;
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} else if (p->host_dst != NULL) {
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Host *h = (Host *)p->host_dst;
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HostLock(h);
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/* use_cnt: 1 for having iprep, 1 for packet ref */
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DEBUG_VALIDATE_BUG_ON(h->iprep != NULL && SC_ATOMIC_GET(h->use_cnt) < 2);
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int8_t val = GetRep(h->iprep, cat, version);
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HostUnlock(h);
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return val;
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} else {
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Host *h = HostLookupHostFromHash(&(p->dst));
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p->flags |= PKT_HOST_DST_LOOKED_UP;
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if (h == NULL)
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return -2;
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HostReference(&p->host_dst, h);
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/* use_cnt: 1 for having iprep, 1 for HostLookupHostFromHash,
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* 1 for HostReference to packet */
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DEBUG_VALIDATE_BUG_ON(h->iprep != NULL && SC_ATOMIC_GET(h->use_cnt) < 3);
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int8_t val = GetRep(h->iprep, cat, version);
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HostRelease(h); /* use_cnt >= 2: 1 for iprep, 1 for packet ref */
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return val;
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}
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}
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/*
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* returns 0: no match
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* 1: match
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* -1: error
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*/
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static int DetectIPRepMatch (DetectEngineThreadCtx *det_ctx, Packet *p,
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const Signature *s, const SigMatchCtx *ctx)
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{
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const DetectIPRepData *rd = (const DetectIPRepData *)ctx;
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if (rd == NULL)
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return 0;
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uint32_t version = det_ctx->de_ctx->srep_version;
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int8_t val = 0;
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SCLogDebug("rd->cmd %u", rd->cmd);
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switch (rd->cmd) {
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case IPRepCmdAny:
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if (!rd->isnotset) {
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val = GetHostRepSrc(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepSrc(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0) {
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if (DetectU8Match((uint8_t)val, &rd->du8))
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return 1;
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}
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val = GetHostRepDst(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepDst(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0) {
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return DetectU8Match((uint8_t)val, &rd->du8);
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}
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} else {
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/* isnotset for any */
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val = GetHostRepSrc(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepSrc(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val < 0) {
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return 1;
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}
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val = GetHostRepDst(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepDst(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val < 0) {
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return 1;
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}
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/* both have a value, so none 'isnotset' */
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return 0;
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}
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break;
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case IPRepCmdSrc:
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val = GetHostRepSrc(p, rd->cat, version);
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SCLogDebug("checking src -- val %d (looking for cat %u, val %u)", val, rd->cat,
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rd->du8.arg1);
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if (val < 0)
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val = SRepCIDRGetIPRepSrc(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0) {
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return DetectU8Match((uint8_t)val, &rd->du8);
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}
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/* implied: no value found */
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if (rd->isnotset) {
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return 1;
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}
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break;
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case IPRepCmdDst:
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SCLogDebug("checking dst");
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val = GetHostRepDst(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepDst(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0) {
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return DetectU8Match((uint8_t)val, &rd->du8);
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}
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/* implied: no value found */
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if (rd->isnotset) {
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return 1;
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}
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break;
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case IPRepCmdBoth:
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if (!rd->isnotset) {
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val = GetHostRepSrc(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepSrc(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val < 0 || DetectU8Match((uint8_t)val, &rd->du8) == 0)
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return 0;
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val = GetHostRepDst(p, rd->cat, version);
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if (val < 0)
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val = SRepCIDRGetIPRepDst(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0) {
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return DetectU8Match((uint8_t)val, &rd->du8);
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}
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} else {
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val = GetHostRepSrc(p, rd->cat, version);
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if (val >= 0)
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return 0;
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val = SRepCIDRGetIPRepSrc(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0)
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return 0;
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val = GetHostRepDst(p, rd->cat, version);
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if (val >= 0)
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return 0;
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val = SRepCIDRGetIPRepDst(det_ctx->de_ctx->srepCIDR_ctx, p, rd->cat, version);
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if (val >= 0)
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return 0;
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return 1;
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}
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break;
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}
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return 0;
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}
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int DetectIPRepSetup (DetectEngineCtx *de_ctx, Signature *s, const char *rawstr)
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{
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DetectIPRepData *cd = SCDetectIPRepParse(rawstr);
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if (cd == NULL) {
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SCLogError("\"%s\" is not a valid setting for iprep", rawstr);
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goto error;
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}
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SCLogDebug("cmd %u, cat %u, op %u, val %u", cd->cmd, cd->cat, cd->du8.mode, cd->du8.arg1);
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/* Okay so far so good, lets get this into a SigMatch
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* and put it in the Signature. */
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if (SigMatchAppendSMToList(de_ctx, s, DETECT_IPREP, (SigMatchCtx *)cd, DETECT_SM_LIST_MATCH) ==
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NULL) {
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goto error;
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}
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return 0;
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error:
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if (cd != NULL)
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DetectIPRepFree(de_ctx, cd);
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return -1;
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}
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void DetectIPRepFree (DetectEngineCtx *de_ctx, void *ptr)
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{
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DetectIPRepData *fd = (DetectIPRepData *)ptr;
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if (fd == NULL)
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return;
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SCDetectIPRepFree(fd);
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}
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#ifdef UNITTESTS
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#include "packet.h"
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#include "action-globals.h"
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static FILE *DetectIPRepGenerateCategoriesDummy(void)
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{
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FILE *fd = NULL;
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const char *buffer = "1,BadHosts,Know bad hosts";
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fd = SCFmemopen((void *)buffer, strlen(buffer), "r");
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if (fd == NULL)
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SCLogDebug("Error with SCFmemopen()");
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return fd;
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}
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static FILE *DetectIPRepGenerateCategoriesDummy2(void)
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{
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FILE *fd = NULL;
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const char *buffer =
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"1,BadHosts,Know bad hosts\n"
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"2,GoodHosts,Know good hosts\n";
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fd = SCFmemopen((void *)buffer, strlen(buffer), "r");
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if (fd == NULL)
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SCLogDebug("Error with SCFmemopen()");
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return fd;
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}
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static FILE *DetectIPRepGenerateNetworksDummy(void)
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{
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FILE *fd = NULL;
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const char *buffer = "10.0.0.0/24,1,20";
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fd = SCFmemopen((void *)buffer, strlen(buffer), "r");
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if (fd == NULL)
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SCLogDebug("Error with SCFmemopen()");
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return fd;
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}
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static FILE *DetectIPRepGenerateNetworksDummy2(void)
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{
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FILE *fd = NULL;
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const char *buffer =
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"0.0.0.0/0,1,10\n"
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"192.168.0.0/16,2,127";
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fd = SCFmemopen((void *)buffer, strlen(buffer), "r");
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if (fd == NULL)
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SCLogDebug("Error with SCFmemopen()");
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return fd;
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}
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static int DetectIPRepTest01(void)
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{
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ThreadVars th_v;
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DetectEngineThreadCtx *det_ctx = NULL;
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Signature *sig = NULL;
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FILE *fd = NULL;
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int r = 0;
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Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
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DetectEngineCtx *de_ctx = DetectEngineCtxInit();
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HostInitConfig(HOST_QUIET);
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memset(&th_v, 0, sizeof(th_v));
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FAIL_IF_NULL(de_ctx);
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FAIL_IF_NULL(p);
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p->src.addr_data32[0] = UTHSetIPv4Address("10.0.0.1");
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de_ctx->flags |= DE_QUIET;
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SRepInit(de_ctx);
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SRepResetVersion();
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fd = DetectIPRepGenerateCategoriesDummy();
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r = SRepLoadCatFileFromFD(fd);
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FAIL_IF(r < 0);
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fd = DetectIPRepGenerateNetworksDummy();
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r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
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FAIL_IF(r < 0);
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sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
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"badhost\"; iprep:any,BadHosts,>,1; sid:1;rev:1;)");
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FAIL_IF_NULL(sig);
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SigGroupBuild(de_ctx);
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DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
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p->alerts.cnt = 0;
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p->action = 0;
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SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
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FAIL_IF(p->alerts.cnt != 1);
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FAIL_IF(PacketTestAction(p, ACTION_DROP));
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UTHFreePacket(p);
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DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
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DetectEngineCtxFree(de_ctx);
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HostShutdown();
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PASS;
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}
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static int DetectIPRepTest02(void)
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{
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ThreadVars th_v;
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DetectEngineThreadCtx *det_ctx = NULL;
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Signature *sig = NULL;
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FILE *fd = NULL;
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int r = 0;
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Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
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DetectEngineCtx *de_ctx = DetectEngineCtxInit();
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HostInitConfig(HOST_QUIET);
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memset(&th_v, 0, sizeof(th_v));
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FAIL_IF_NULL(de_ctx);
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FAIL_IF_NULL(p);
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p->src.addr_data32[0] = UTHSetIPv4Address("10.0.0.1");
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de_ctx->flags |= DE_QUIET;
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SRepInit(de_ctx);
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SRepResetVersion();
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fd = DetectIPRepGenerateCategoriesDummy();
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r = SRepLoadCatFileFromFD(fd);
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FAIL_IF(r < 0);
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fd = DetectIPRepGenerateNetworksDummy();
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r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
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FAIL_IF(r < 0);
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sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
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"badhost\"; iprep:src,BadHosts,>,1; sid:1; rev:1;)");
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FAIL_IF_NULL(sig);
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SigGroupBuild(de_ctx);
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DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
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p->alerts.cnt = 0;
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p->action = 0;
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SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
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FAIL_IF(p->alerts.cnt != 1);
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FAIL_IF(PacketTestAction(p, ACTION_DROP));
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UTHFreePacket(p);
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DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
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DetectEngineCtxFree(de_ctx);
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HostShutdown();
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PASS;
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}
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static int DetectIPRepTest03(void)
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{
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ThreadVars th_v;
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DetectEngineThreadCtx *det_ctx = NULL;
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Signature *sig = NULL;
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FILE *fd = NULL;
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int r = 0;
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Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
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DetectEngineCtx *de_ctx = DetectEngineCtxInit();
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HostInitConfig(HOST_QUIET);
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memset(&th_v, 0, sizeof(th_v));
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FAIL_IF_NULL(de_ctx);
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FAIL_IF_NULL(p);
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p->dst.addr_data32[0] = UTHSetIPv4Address("10.0.0.2");
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de_ctx->flags |= DE_QUIET;
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SRepInit(de_ctx);
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SRepResetVersion();
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fd = DetectIPRepGenerateCategoriesDummy();
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r = SRepLoadCatFileFromFD(fd);
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FAIL_IF(r < 0);
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fd = DetectIPRepGenerateNetworksDummy();
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r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
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FAIL_IF(r < 0);
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sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
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"badhost\"; iprep:dst,BadHosts,>,1; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 1);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest04(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("10.0.0.1");
|
|
p->dst.addr_data32[0] = UTHSetIPv4Address("10.0.0.2");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
|
|
"badhost\"; iprep:both,BadHosts,>,1; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 1);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest05(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("1.0.0.1");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
|
|
"badhost\"; iprep:any,BadHosts,>,1; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 0);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest06(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("1.0.0.1");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy2();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
|
|
"badhost\"; iprep:any,BadHosts,>,1; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 1);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest07(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->dst.addr_data32[0] = UTHSetIPv4Address("1.0.0.2");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy2();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
|
|
"badhost\"; iprep:any,BadHosts,>,1; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 1);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest08(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("1.0.0.1");
|
|
p->dst.addr_data32[0] = UTHSetIPv4Address("1.0.0.2");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"IPREP High value "
|
|
"badhost\"; iprep:any,BadHosts,>,1; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 0);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest09(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("192.168.0.1");
|
|
p->dst.addr_data32[0] = UTHSetIPv4Address("192.168.0.2");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy2();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy2();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx,
|
|
"alert tcp any any -> any any (msg:\"test\"; iprep:src,BadHosts,>,9; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
p->alerts.cnt = 0;
|
|
p->action = 0;
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF(p->alerts.cnt != 1);
|
|
FAIL_IF(PacketTestAction(p, ACTION_DROP));
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static FILE *DetectIPRepGenerateNetworksDummy3(void)
|
|
{
|
|
FILE *fd = NULL;
|
|
const char *buffer = "192.168.0.0/16,1,127"; // BadHosts
|
|
|
|
fd = SCFmemopen((void *)buffer, strlen(buffer), "r");
|
|
if (fd == NULL)
|
|
SCLogDebug("Error with SCFmemopen()");
|
|
|
|
return fd;
|
|
}
|
|
|
|
static int DetectIPRepTest10(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("192.168.0.1");
|
|
p->dst.addr_data32[0] = UTHSetIPv4Address("192.168.0.2");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy2();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy3();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx,
|
|
"alert tcp any any -> any any (msg:\"test\"; iprep:src,BadHosts,isset; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF_NOT(p->alerts.cnt == 1);
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
static int DetectIPRepTest11(void)
|
|
{
|
|
ThreadVars th_v;
|
|
DetectEngineThreadCtx *det_ctx = NULL;
|
|
Signature *sig = NULL;
|
|
FILE *fd = NULL;
|
|
int r = 0;
|
|
Packet *p = UTHBuildPacket((uint8_t *)"lalala", 6, IPPROTO_TCP);
|
|
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
|
|
|
HostInitConfig(HOST_QUIET);
|
|
memset(&th_v, 0, sizeof(th_v));
|
|
|
|
FAIL_IF_NULL(de_ctx);
|
|
FAIL_IF_NULL(p);
|
|
|
|
p->src.addr_data32[0] = UTHSetIPv4Address("10.0.0.1");
|
|
p->dst.addr_data32[0] = UTHSetIPv4Address("10.0.0.2");
|
|
de_ctx->flags |= DE_QUIET;
|
|
|
|
SRepInit(de_ctx);
|
|
SRepResetVersion();
|
|
|
|
fd = DetectIPRepGenerateCategoriesDummy2();
|
|
r = SRepLoadCatFileFromFD(fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
fd = DetectIPRepGenerateNetworksDummy3();
|
|
r = SRepLoadFileFromFD(de_ctx->srepCIDR_ctx, fd);
|
|
FAIL_IF(r < 0);
|
|
|
|
sig = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any (msg:\"test\"; "
|
|
"iprep:src,BadHosts,isnotset; sid:1; rev:1;)");
|
|
FAIL_IF_NULL(sig);
|
|
|
|
SigGroupBuild(de_ctx);
|
|
DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx);
|
|
|
|
SigMatchSignatures(&th_v, de_ctx, det_ctx, p);
|
|
FAIL_IF_NOT(p->alerts.cnt == 1);
|
|
|
|
UTHFreePacket(p);
|
|
|
|
DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx);
|
|
DetectEngineCtxFree(de_ctx);
|
|
|
|
HostShutdown();
|
|
PASS;
|
|
}
|
|
|
|
/**
|
|
* \brief this function registers unit tests for IPRep
|
|
*/
|
|
void IPRepRegisterTests(void)
|
|
{
|
|
UtRegisterTest("DetectIPRepTest01", DetectIPRepTest01);
|
|
UtRegisterTest("DetectIPRepTest02", DetectIPRepTest02);
|
|
UtRegisterTest("DetectIPRepTest03", DetectIPRepTest03);
|
|
UtRegisterTest("DetectIPRepTest04", DetectIPRepTest04);
|
|
UtRegisterTest("DetectIPRepTest05", DetectIPRepTest05);
|
|
UtRegisterTest("DetectIPRepTest06", DetectIPRepTest06);
|
|
UtRegisterTest("DetectIPRepTest07", DetectIPRepTest07);
|
|
UtRegisterTest("DetectIPRepTest08", DetectIPRepTest08);
|
|
UtRegisterTest("DetectIPRepTest09", DetectIPRepTest09);
|
|
UtRegisterTest("DetectIPRepTest10 -- isset", DetectIPRepTest10);
|
|
UtRegisterTest("DetectIPRepTest11 -- isnotset", DetectIPRepTest11);
|
|
}
|
|
#endif /* UNITTESTS */
|