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93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/* Copyright (C) 2016-2022 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 Giuseppe Longo <glongo@stamus-networks.com>
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*
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*/
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#include "suricata-common.h"
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#include "threads.h"
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#include "app-layer.h"
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#include "app-layer-parser.h"
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#include "decode.h"
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#include "detect.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-sigorder.h"
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#include "detect-bypass.h"
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#include "flow.h"
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#include "flow-var.h"
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#include "flow-util.h"
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#include "stream-tcp.h"
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#include "util-debug.h"
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#include "util-spm-bm.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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#include "util-device.h"
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static int DetectBypassMatch(DetectEngineThreadCtx *, Packet *,
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const Signature *, const SigMatchCtx *);
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static int DetectBypassSetup(DetectEngineCtx *, Signature *, const char *);
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/**
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* \brief Registration function for keyword: bypass
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*/
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void DetectBypassRegister(void)
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{
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sigmatch_table[DETECT_BYPASS].name = "bypass";
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sigmatch_table[DETECT_BYPASS].desc = "call the bypass callback when the match of a sig is complete";
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sigmatch_table[DETECT_BYPASS].url = "/rules/bypass-keyword.html";
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sigmatch_table[DETECT_BYPASS].Match = DetectBypassMatch;
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sigmatch_table[DETECT_BYPASS].Setup = DetectBypassSetup;
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sigmatch_table[DETECT_BYPASS].Free = NULL;
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sigmatch_table[DETECT_BYPASS].flags = SIGMATCH_NOOPT;
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}
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static int DetectBypassSetup(DetectEngineCtx *de_ctx, Signature *s, const char *str)
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{
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if (s->flags & SIG_FLAG_FILESTORE) {
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SCLogError("bypass can't work with filestore keyword");
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return -1;
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}
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s->flags |= SIG_FLAG_BYPASS;
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if (SigMatchAppendSMToList(de_ctx, s, DETECT_BYPASS, NULL, DETECT_SM_LIST_POSTMATCH) == NULL) {
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return -1;
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}
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return 0;
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}
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static int DetectBypassMatch(DetectEngineThreadCtx *det_ctx, Packet *p,
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const Signature *s, const SigMatchCtx *ctx)
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{
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PacketBypassCallback(p);
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return 1;
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}
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