ah.h

This directory contains source code for tcpdump, a tool for network monitoring and data acquisition

/* $NetBSD: ah.h,v 1.12 2000/07/23 05:23:04 itojun Exp $ */
/* $KAME: ah.h,v 1.12 2000/07/20 17:41:01 itojun Exp $ */

/*
 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 * 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. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
 */

/*
 * RFC1826/2402 authentication header.
 */

#ifndef __AH_H_
#define __AH_H_

struct ah
{
  u_int8_t  ah_nxt;             /* Next Header */
  u_int8_t  ah_len;             /* Length of data, in 32bit */
  u_int16_t ah_reserve;         /* Reserved for future use */
  u_int32_t ah_spi;             /* Security parameter index */
/* variable size, 32bit bound *//* Authentication data */
};

struct newah
{
  u_int8_t  ah_nxt;             /* Next Header */
  u_int8_t  ah_len;             /* Length of data + 1, in 32bit */
  u_int16_t ah_reserve;         /* Reserved for future use */
  u_int32_t ah_spi;             /* Security parameter index */
  u_int32_t ah_seq;             /* Sequence number field */
/* variable size, 32bit bound *//* Authentication data */
};

#endif /* __AH_H_*/