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83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/* Copyright (C) 2007-2011 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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*/
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#include "suricata-common.h"
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#include "threads.h"
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#include "debug.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 "flow.h"
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#include "flow-var.h"
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#include "flow-util.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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static int DetectFiledataSetup (DetectEngineCtx *, Signature *, char *);
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/**
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* \brief Registration function for keyword: file_data
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*/
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void DetectFiledataRegister(void) {
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sigmatch_table[DETECT_FILE_DATA].name = "file_data";
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sigmatch_table[DETECT_FILE_DATA].Match = NULL;
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sigmatch_table[DETECT_FILE_DATA].AppLayerMatch = NULL;
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sigmatch_table[DETECT_FILE_DATA].alproto = ALPROTO_HTTP;
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sigmatch_table[DETECT_FILE_DATA].Setup = DetectFiledataSetup;
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sigmatch_table[DETECT_FILE_DATA].Free = NULL;
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sigmatch_table[DETECT_FILE_DATA].RegisterTests = NULL;
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}
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/**
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* \brief this function is used to parse filedata options
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* \brief into the current signature
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*
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* \param de_ctx pointer to the Detection Engine Context
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* \param s pointer to the Current Signature
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* \param str pointer to the user provided "filestore" option
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*
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* \retval 0 on Success
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* \retval -1 on Failure
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*/
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static int DetectFiledataSetup (DetectEngineCtx *de_ctx, Signature *s, char *str)
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{
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SCEnter();
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if (s->init_flags & SIG_FLAG_INIT_FLOW && s->flags & SIG_FLAG_TOSERVER && !(s->flags & SIG_FLAG_TOCLIENT)) {
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SCLogError(SC_ERR_INVALID_SIGNATURE, "Can't use file_data with flow:to_server or from_client with http.");
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return -1;
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}
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s->init_flags |= SIG_FLAG_INIT_FILE_DATA;
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return 0;
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}
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