sys/netproto/ipsec/ah.h

   1 /*      $FreeBSD: src/sys/netipsec/ah.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $ */
   2 /*      $DragonFly: src/sys/netproto/ipsec/ah.h,v 1.2 2003/06/17 04:28:53 dillon Exp $  */
   3 /*      $KAME: ah.h,v 1.13 2000/10/18 21:28:00 itojun Exp $     */
   4
   5 /*
   6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * RFC1826/2402 authentication header.
  36  */
  37
  38 #ifndef _NETIPSEC_AH_H_
  39 #define _NETIPSEC_AH_H_
  40
  41 struct ah {
  42         u_int8_t        ah_nxt;         /* Next Header */
  43         u_int8_t        ah_len;         /* Length of data, in 32bit */
  44         u_int16_t       ah_reserve;     /* Reserved for future use */
  45         u_int32_t       ah_spi;         /* Security parameter index */
  46         /* variable size, 32bit bound*/ /* Authentication data */
  47 };
  48
  49 struct newah {
  50         u_int8_t        ah_nxt;         /* Next Header */
  51         u_int8_t        ah_len;         /* Length of data + 1, in 32bit */
  52         u_int16_t       ah_reserve;     /* Reserved for future use */
  53         u_int32_t       ah_spi;         /* Security parameter index */
  54         u_int32_t       ah_seq;         /* Sequence number field */
  55         /* variable size, 32bit bound*/ /* Authentication data */
  56 };
  57 #endif /*_NETIPSEC_AH_H_*/