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- /* $KAME: esp.h,v 1.16 2000/10/18 21:28:00 itojun Exp $ */
- /*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * 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.
- */
- /*
- * RFC1827/2406 Encapsulated Security Payload.
- */
- #ifndef _NETIPSEC_ESP_H_
- #define _NETIPSEC_ESP_H_
- struct esp {
- u_int32_t esp_spi; /* ESP */
- /*variable size, 32bit bound*/ /* Initialization Vector */
- /*variable size*/ /* Payload data */
- /*variable size*/ /* padding */
- /*8bit*/ /* pad length */
- /*8bit*/ /* next header */
- /*variable size, 32bit bound*/ /* Authentication data (new IPsec) */
- };
- struct newesp {
- u_int32_t esp_spi; /* ESP */
- u_int32_t esp_seq; /* Sequence number */
- /*variable size*/ /* (IV and) Payload data */
- /*variable size*/ /* padding */
- /*8bit*/ /* pad length */
- /*8bit*/ /* next header */
- /*variable size, 32bit bound*/ /* Authentication data */
- };
- struct esptail {
- u_int8_t esp_padlen; /* pad length */
- u_int8_t esp_nxt; /* Next header */
- /*variable size, 32bit bound*/ /* Authentication data (new IPsec)*/
- };
- #define ESP_ALEN 12 /* 96-bit authenticator */
- #endif /*_NETIPSEC_ESP_H_*/
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