FreeBSD/Linux Kernel Cross Reference
sys/netipsec/ah.h
1 /* $FreeBSD: src/sys/netipsec/ah.h,v 1.2 2005/01/07 01:45:46 imp Exp $ */
2 /* $KAME: ah.h,v 1.13 2000/10/18 21:28:00 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 _NETIPSEC_AH_H_
38 #define _NETIPSEC_AH_H_
39
40 struct 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
48 struct 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 #endif /*_NETIPSEC_AH_H_*/
57
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