/* * A fast filter for static patterns. * * Copyright (C) 2008 Sourcefire, Inc. * * Authors: Török Edvin * * This program is free software; you can redistribute it and/or modify * it 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 * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301, USA. */ #ifndef FILTER_H #define FILTER_H #include "cltypes.h" struct filter { uint8_t B[65536]; uint8_t end[65536]; unsigned long m; }; struct filter_match_info { unsigned long first_match; }; struct cli_ac_patt; void filter_init(struct filter *m); long filter_search(const struct filter *m, const unsigned char *data, unsigned long len); int filter_search_ext(const struct filter *m, const unsigned char *data, unsigned long len, struct filter_match_info *inf); int filter_add_static(struct filter *m, const unsigned char *pattern, unsigned long len, const char *name); int filter_add_acpatt(struct filter *m, const struct cli_ac_patt *pat); #endif