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suricata/src/util-spm-bm.h

30 lines
1.1 KiB
C

#ifndef __UTIL_SPM_BM__
#define __UTIL_SPM_BM__
#include "suricata-common.h"
#include "suricata.h"
#define ALPHABET_SIZE 256
/* Context for booyer moore */
typedef struct BmCtx_ {
int32_t bmBc[ALPHABET_SIZE];
int32_t *bmGs; // = SCMalloc(sizeof(int32_t)*(needlelen + 1));
}BmCtx;
/** Prepare and return a Boyer Moore context */
BmCtx *BoyerMooreCtxInit(uint8_t *needle, uint32_t needle_len);
void BoyerMooreCtxToNocase(BmCtx *, uint8_t *, uint32_t);
void PreBmBc(const uint8_t *x, int32_t m, int32_t *bmBc);
void BoyerMooreSuffixes(const uint8_t *x, int32_t m, int32_t *suff);
void PreBmGs(const uint8_t *x, int32_t m, int32_t *bmGs);
uint8_t *BoyerMoore(uint8_t *x, int32_t m, uint8_t *y, int32_t n, int32_t *bmGs, int32_t *bmBc);
void PreBmBcNocase(const uint8_t *x, int32_t m, int32_t *bmBc);
void BoyerMooreSuffixesNocase(const uint8_t *x, int32_t m, int32_t *suff);
void PreBmGsNocase(const uint8_t *x, int32_t m, int32_t *bmGs);
uint8_t *BoyerMooreNocase(uint8_t *x, int32_t m, uint8_t *y, int32_t n, int32_t *bmGs, int32_t *bmBc);
#endif /* __UTIL_SPM_BM__ */