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   1 /*      $NetBSD: ah.h,v 1.12 2000/07/23 05:23:04 itojun Exp $   */
   2 /*      $KAME: ah.h,v 1.12 2000/07/20 17:41:01 itojun Exp $     */
   3
   4 /*
   5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the project nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * RFC1826/2402 authentication header.
  35  */
  36
  37 #ifndef _NETINET6_AH_H_
  38 #define _NETINET6_AH_H_
  39
  40 struct ah {
  41         u_int8_t        ah_nxt;         /* Next Header */
  42         u_int8_t        ah_len;         /* Length of data, in 32bit */
  43         u_int16_t       ah_reserve;     /* Reserved for future use */
  44         u_int32_t       ah_spi;         /* Security parameter index */
  45         /* variable size, 32bit bound*/ /* Authentication data */
  46 };
  47
  48 struct newah {
  49         u_int8_t        ah_nxt;         /* Next Header */
  50         u_int8_t        ah_len;         /* Length of data + 1, in 32bit */
  51         u_int16_t       ah_reserve;     /* Reserved for future use */
  52         u_int32_t       ah_spi;         /* Security parameter index */
  53         u_int32_t       ah_seq;         /* Sequence number field */
  54         /* variable size, 32bit bound*/ /* Authentication data */
  55 };
  56
  57 #endif /*_NETINET6_AH_H_*/