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 Breno Silva <breno.silva@gmail.com>
22  */
23 
24 #ifndef __DETECT_FLAGS_H__
25 #define __DETECT_FLAGS_H__
26 
27 #include "decode-events.h"
28 #include "decode-ipv4.h"
29 #include "decode-tcp.h"
30 
31 /**
32  * \struct DetectFlagsData_
33  * DetectFlagsData_ is used to store flags: input value
34  */
35 
36 /**
37  * \typedef DetectFlagsData
38  * A typedef for DetectFlagsData_
39  */
40 
41 typedef struct DetectFlagsData_ {
42     uint8_t flags;  /**< TCP flags */
43     uint8_t modifier; /**< !(1) +(2) *(3) modifiers */
44     uint8_t ignored_flags;  /**< Ignored TCP flags defined by modifer , */
45 } DetectFlagsData;
46 
47 /**
48  * Registration function for flags: keyword
49  */
50 
51 void DetectFlagsRegister (void);
52 
53 int DetectFlagsSignatureNeedsSynPackets(const Signature *s);
54 int DetectFlagsSignatureNeedsSynOnlyPackets(const Signature *s);
55 
56 #endif /*__DETECT_FLAGS_H__ */
57