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/*
* rule.h - Bytecode compiler and interpreter for rules
*
* This file is part of tcpspy, a TCP/IP connection monitor.
*
* Copyright (c) 2000, 2001, 2002 Tim J. Robbins.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: rule.h,v 1.3 2001/01/05 14:04:41 fyre Stab $
*/
#ifndef RULE_H
#define RULE_H
#include <netinet/in.h>
#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
void rule_gen_user (uid_t uid);
void rule_gen_lport (u_int16_t low, u_int16_t high);
void rule_gen_rport (u_int16_t low, u_int16_t high);
void rule_gen_laddr (u_int32_t addr, u_int32_t mask);
void rule_gen_raddr (u_int32_t addr, u_int32_t mask);
void rule_gen_exe (unsigned long estrid);
void rule_gen_or (void);
void rule_gen_and (void);
void rule_gen_not (void);
int rule_eval (uid_t muid, u_int32_t mladdr, u_int16_t mlport,
u_int32_t mraddr, u_int16_t mrport, const char *mexe);
void rule_parse (const char *r);
void rule_parse_file (FILE *fp);
unsigned long st_store (const char *s);
#endif
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