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suricata/src/util-bloomfilter-counting.h

48 lines
1.7 KiB
C

/* Copyright (C) 2007-2010 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 Victor Julien <victor@inliniac.net>
*/
#ifndef __BLOOMFILTERCOUNTING_H__
#define __BLOOMFILTERCOUNTING_H__
/* Bloom filter structure */
typedef struct BloomFilterCounting_ {
uint8_t *array;
uint32_t array_size; /* size in buckets */
uint8_t type; /* 1, 2 or 4 byte counters */
uint8_t hash_iterations;
uint32_t (*Hash)(const void *, uint16_t, uint8_t, uint32_t);
} BloomFilterCounting;
/* prototypes */
BloomFilterCounting *BloomFilterCountingInit(uint32_t, uint8_t, uint8_t, uint32_t (*Hash)(const void *, uint16_t, uint8_t, uint32_t));
void BloomFilterCountingFree(BloomFilterCounting *);
void BloomFilterCountingPrint(BloomFilterCounting *);
int BloomFilterCountingAdd(BloomFilterCounting *, const void *, uint16_t);
int BloomFilterCountingRemove(BloomFilterCounting *, const void *, uint16_t);
int BloomFilterCountingTest(BloomFilterCounting *, const void *, uint16_t);
void BloomFilterCountingRegisterTests(void);
#endif /* __BLOOMFILTERCOUNTING_H__ */