suricata
detect-flow.h
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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 
24 #ifndef __DETECT_FLOW_H__
25 #define __DETECT_FLOW_H__
26 
27 #define DETECT_FLOW_FLAG_TOSERVER BIT_U16(0)
28 #define DETECT_FLOW_FLAG_TOCLIENT BIT_U16(1)
29 #define DETECT_FLOW_FLAG_ESTABLISHED BIT_U16(2)
30 #define DETECT_FLOW_FLAG_NOT_ESTABLISHED BIT_U16(3)
31 #define DETECT_FLOW_FLAG_STATELESS BIT_U16(4)
32 #define DETECT_FLOW_FLAG_ONLYSTREAM BIT_U16(5)
33 #define DETECT_FLOW_FLAG_NOSTREAM BIT_U16(6)
34 #define DETECT_FLOW_FLAG_NO_FRAG BIT_U16(7)
35 #define DETECT_FLOW_FLAG_ONLY_FRAG BIT_U16(8)
36 
37 typedef struct DetectFlowData_ {
38  uint16_t flags; /* flags to match */
39  uint8_t match_cnt; /* number of matches we need */
41 
42 int DetectFlowSetupImplicit(Signature *s, uint32_t flags);
43 
44 /* prototypes */
45 void DetectFlowRegister (void);
46 
47 #endif /* __DETECT_FLOW_H__ */
48 
uint8_t match_cnt
Definition: detect-flow.h:39
uint16_t flags
Definition: detect-flow.h:38
void DetectFlowRegister(void)
Registration function for flow: keyword.
Definition: detect-flow.c:64
int DetectFlowSetupImplicit(Signature *s, uint32_t flags)
Definition: detect-flow.c:319
Signature container.
Definition: detect.h:517
struct DetectFlowData_ DetectFlowData