contrib/tcpdump/esp.h

   1 /*      $NetBSD: esp.h,v 1.13 2000/09/26 08:37:38 itojun Exp $  */
   2 /*      $KAME: esp.h,v 1.15 2000/09/20 18:15:22 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  * RFC1827/2406 Encapsulated Security Payload.
  35  */
  36
  37 #ifndef _NETINET6_ESP_H_
  38 #define _NETINET6_ESP_H_
  39
  40 struct esp {
  41         u_int32_t       esp_spi;        /* ESP */
  42         /*variable size, 32bit bound*/  /* Initialization Vector */
  43         /*variable size*/               /* Payload data */
  44         /*variable size*/               /* padding */
  45         /*8bit*/                        /* pad size */
  46         /*8bit*/                        /* next header */
  47         /*8bit*/                        /* next header */
  48         /*variable size, 32bit bound*/  /* Authentication data (new IPsec) */
  49 };
  50
  51 struct newesp {
  52         u_int32_t       esp_spi;        /* ESP */
  53         u_int32_t       esp_seq;        /* Sequence number */
  54         /*variable size*/               /* (IV and) Payload data */
  55         /*variable size*/               /* padding */
  56         /*8bit*/                        /* pad size */
  57         /*8bit*/                        /* next header */
  58         /*8bit*/                        /* next header */
  59         /*variable size, 32bit bound*/  /* Authentication data */
  60 };
  61
  62 struct esptail {
  63         u_int8_t        esp_padlen;     /* pad length */
  64         u_int8_t        esp_nxt;        /* Next header */
  65         /*variable size, 32bit bound*/  /* Authentication data (new IPsec)*/
  66 };
  67
  68 #endif /*_NETINET6_ESP_H_*/