suricata
detect-noalert.c
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1 /* Copyright (C) 2007-2010 Open Information Security Foundation
2  *
3  * You can copy, redistribute or modify this Program under the terms of
4  * the GNU General Public License version 2 as published by the Free
5  * Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * version 2 along with this program; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15  * 02110-1301, USA.
16  */
17 
18 /**
19  * \file
20  *
21  * \author Victor Julien <victor@inliniac.net>
22  *
23  * Implements the noalert keyword
24  */
25 
26 #include "suricata-common.h"
27 #include "detect.h"
28 #include "detect-noalert.h"
29 #include "util-debug.h"
30 
31 static int DetectNoalertSetup (DetectEngineCtx *, Signature *, const char *);
32 
34 {
35  sigmatch_table[DETECT_NOALERT].name = "noalert";
37  sigmatch_table[DETECT_NOALERT].Setup = DetectNoalertSetup;
40 
42 }
43 
44 static int DetectNoalertSetup (DetectEngineCtx *de_ctx, Signature *s, const char *nullstr)
45 {
46  if (nullstr != NULL) {
47  SCLogError(SC_ERR_INVALID_VALUE, "nocase has no value");
48  return -1;
49  }
50 
51  s->flags |= SIG_FLAG_NOALERT;
52  return 0;
53 }
54 
SigTableElmt sigmatch_table[DETECT_TBLSIZE]
Definition: detect.h:1439
int(* Setup)(DetectEngineCtx *, Signature *, const char *)
Definition: detect.h:1179
uint32_t flags
Definition: detect.h:518
const char * name
Definition: detect.h:1193
Signature container.
Definition: detect.h:517
void DetectNoalertRegister(void)
main detection engine ctx
Definition: detect.h:756
void(* Free)(void *)
Definition: detect.h:1184
#define SCLogError(err_code,...)
Macro used to log ERROR messages.
Definition: util-debug.h:294
int(* Match)(DetectEngineThreadCtx *, Packet *, const Signature *, const SigMatchCtx *)
Definition: detect.h:1163
#define SIG_FLAG_NOALERT
Definition: detect.h:212
#define SIGMATCH_NOOPT
Definition: detect.h:1362
uint16_t flags
Definition: detect.h:1187
void(* RegisterTests)(void)
Definition: detect.h:1185