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90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
/* Copyright (C) 2007-2013 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 Breno Silva <breno.silva@gmail.com>
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*/
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#ifndef __DETECT_THRESHOLD_H__
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#define __DETECT_THRESHOLD_H__
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#include "decode-events.h"
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#include "decode-ipv4.h"
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#include "decode-tcp.h"
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#define TYPE_LIMIT 1
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#define TYPE_BOTH 2
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#define TYPE_THRESHOLD 3
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#define TYPE_DETECTION 4
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#define TYPE_RATE 5
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#define TYPE_SUPPRESS 6
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#define TRACK_DST 1
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#define TRACK_SRC 2
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#define TRACK_RULE 3
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#define TRACK_EITHER 4 /**< either src or dst: only used by suppress */
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#define TRACK_BOTH 5 /* used by rate_filter to match detections by both src and dst addresses */
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/* Get the new action to take */
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#define TH_ACTION_ALERT 0x01
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#define TH_ACTION_DROP 0x02
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#define TH_ACTION_PASS 0x04
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#define TH_ACTION_LOG 0x08
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#define TH_ACTION_SDROP 0x10
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#define TH_ACTION_REJECT 0x20
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/**
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* \typedef DetectThresholdData
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* A typedef for DetectThresholdData_
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*/
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typedef struct DetectThresholdData_ {
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uint32_t count; /**< Event count */
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uint32_t seconds; /**< Event seconds */
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uint8_t type; /**< Threshold type : limit , threshold, both, detection_filter */
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uint8_t track; /**< Track type: by_src, by_dst */
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uint8_t new_action; /**< new_action alert|drop|pass|log|sdrop|reject */
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uint32_t timeout; /**< timeout */
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uint32_t flags; /**< flags used to set option */
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DetectAddressHead addrs;
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} DetectThresholdData;
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typedef struct DetectThresholdEntry_ {
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uint32_t sid; /**< Signature id */
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uint32_t gid; /**< Signature group id */
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uint32_t tv_timeout; /**< Timeout for new_action (for rate_filter)
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its not "seconds", that define the time interval */
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uint32_t seconds; /**< Event seconds */
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uint32_t current_count; /**< Var for count control */
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int track; /**< Track type: by_src, by_src */
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struct timeval tv1; /**< Var for time control */
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struct DetectThresholdEntry_ *next;
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} DetectThresholdEntry;
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/**
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* Registration function for threshold: keyword
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*/
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void DetectThresholdRegister(void);
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#endif /*__DETECT_THRESHOLD_H__ */
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