1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* Copyright (C) 2007-2013 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Breno Silva <breno.silva@gmail.com>
*/
#ifndef __DETECT_THRESHOLD_H__
#define __DETECT_THRESHOLD_H__
#include "decode-events.h"
#include "decode-ipv4.h"
#include "decode-tcp.h"
#define TYPE_LIMIT 1
#define TYPE_BOTH 2
#define TYPE_THRESHOLD 3
#define TYPE_DETECTION 4
#define TYPE_RATE 5
#define TYPE_SUPPRESS 6
#define TRACK_DST 1
#define TRACK_SRC 2
#define TRACK_RULE 3
#define TRACK_EITHER 4 /**< either src or dst: only used by suppress */
/* Get the new action to take */
#define TH_ACTION_ALERT 0x01
#define TH_ACTION_DROP 0x02
#define TH_ACTION_PASS 0x04
#define TH_ACTION_LOG 0x08
#define TH_ACTION_SDROP 0x10
#define TH_ACTION_REJECT 0x20
/**
* \typedef DetectThresholdData
* A typedef for DetectThresholdData_
*/
typedef struct DetectThresholdData_ {
uint32_t count; /**< Event count */
uint32_t seconds; /**< Event seconds */
uint8_t type; /**< Threshold type : limit , threshold, both, detection_filter */
uint8_t track; /**< Track type: by_src, by_dst */
uint8_t new_action; /**< new_action alert|drop|pass|log|sdrop|reject */
uint32_t timeout; /**< timeout */
uint32_t flags; /**< flags used to set option */
DetectAddressHead addrs;
} DetectThresholdData;
typedef struct DetectThresholdEntry_ {
uint32_t sid; /**< Signature id */
uint32_t gid; /**< Signature group id */
uint32_t tv_timeout; /**< Timeout for new_action (for rate_filter)
its not "seconds", that define the time interval */
uint32_t seconds; /**< Event seconds */
uint32_t tv_sec1; /**< Var for time control */
uint32_t tv_usec1; /**< Var for time control */
uint32_t current_count; /**< Var for count control */
int track; /**< Track type: by_src, by_src */
struct DetectThresholdEntry_ *next;
} DetectThresholdEntry;
/**
* Registration function for threshold: keyword
*/
void DetectThresholdRegister(void);
/**
* This function registers unit tests for Threshold
*/
void ThresholdRegisterTests(void);
#endif /*__DETECT_THRESHOLD_H__ */
|
