188768458SSam Leffler /* $KAME: ah.h,v 1.13 2000/10/18 21:28:00 itojun Exp $ */ 288768458SSam Leffler 3c398230bSWarner Losh /*- 4*51369649SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 5*51369649SPedro F. Giffuni * 688768458SSam Leffler * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 788768458SSam Leffler * All rights reserved. 888768458SSam Leffler * 988768458SSam Leffler * Redistribution and use in source and binary forms, with or without 1088768458SSam Leffler * modification, are permitted provided that the following conditions 1188768458SSam Leffler * are met: 1288768458SSam Leffler * 1. Redistributions of source code must retain the above copyright 1388768458SSam Leffler * notice, this list of conditions and the following disclaimer. 1488768458SSam Leffler * 2. Redistributions in binary form must reproduce the above copyright 1588768458SSam Leffler * notice, this list of conditions and the following disclaimer in the 1688768458SSam Leffler * documentation and/or other materials provided with the distribution. 1788768458SSam Leffler * 3. Neither the name of the project nor the names of its contributors 1888768458SSam Leffler * may be used to endorse or promote products derived from this software 1988768458SSam Leffler * without specific prior written permission. 2088768458SSam Leffler * 2188768458SSam Leffler * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 2288768458SSam Leffler * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2388768458SSam Leffler * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2488768458SSam Leffler * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 2588768458SSam Leffler * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2688768458SSam Leffler * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2788768458SSam Leffler * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2888768458SSam Leffler * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2988768458SSam Leffler * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3088768458SSam Leffler * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3188768458SSam Leffler * SUCH DAMAGE. 3288768458SSam Leffler */ 3388768458SSam Leffler 3488768458SSam Leffler /* 3588768458SSam Leffler * RFC1826/2402 authentication header. 3688768458SSam Leffler */ 3788768458SSam Leffler 3888768458SSam Leffler #ifndef _NETIPSEC_AH_H_ 3988768458SSam Leffler #define _NETIPSEC_AH_H_ 4088768458SSam Leffler 4188768458SSam Leffler struct ah { 4288768458SSam Leffler u_int8_t ah_nxt; /* Next Header */ 4388768458SSam Leffler u_int8_t ah_len; /* Length of data, in 32bit */ 4488768458SSam Leffler u_int16_t ah_reserve; /* Reserved for future use */ 4588768458SSam Leffler u_int32_t ah_spi; /* Security parameter index */ 4688768458SSam Leffler /* variable size, 32bit bound*/ /* Authentication data */ 4788768458SSam Leffler }; 4888768458SSam Leffler 4988768458SSam Leffler struct newah { 5088768458SSam Leffler u_int8_t ah_nxt; /* Next Header */ 5188768458SSam Leffler u_int8_t ah_len; /* Length of data + 1, in 32bit */ 5288768458SSam Leffler u_int16_t ah_reserve; /* Reserved for future use */ 5388768458SSam Leffler u_int32_t ah_spi; /* Security parameter index */ 5488768458SSam Leffler u_int32_t ah_seq; /* Sequence number field */ 5588768458SSam Leffler /* variable size, 32bit bound*/ /* Authentication data */ 5688768458SSam Leffler }; 5788768458SSam Leffler #endif /*_NETIPSEC_AH_H_*/ 58