Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / ah.h
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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
40struct 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
48struct 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_*/