Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / enc.h
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c8cf0f94
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1/* @(#) $Header: /tcpdump/master/tcpdump/enc.h,v 1.1 2003/03/08 08:55:33 guy Exp $ (LBL) */
2/* From $OpenBSD: if_enc.h,v 1.8 2001/06/25 05:14:00 angelos Exp $ */
3/*
4 * The authors of this code are John Ioannidis (ji@tla.org),
5 * Angelos D. Keromytis (kermit@csd.uch.gr) and
6 * Niels Provos (provos@physnet.uni-hamburg.de).
7 *
8 * This code was written by John Ioannidis for BSD/OS in Athens, Greece,
9 * in November 1995.
10 *
11 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
12 * by Angelos D. Keromytis.
13 *
14 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
15 * and Niels Provos.
16 *
17 * Copyright (C) 1995, 1996, 1997, 1998 by John Ioannidis, Angelos D. Keromytis
18 * and Niels Provos.
19 * Copyright (c) 2001, Angelos D. Keromytis.
20 *
21 * Permission to use, copy, and modify this software with or without fee
22 * is hereby granted, provided that this entire notice is included in
23 * all copies of any software which is or includes a copy or
24 * modification of this software.
25 * You may use this code under the GNU public license if you so wish. Please
26 * contribute changes back to the authors under this freer than GPL license
27 * so that we may further the use of strong encryption without limitations to
28 * all.
29 *
30 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
31 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
32 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
33 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
34 * PURPOSE.
35 */
36
37#define ENC_HDRLEN 12
38
39/* From $OpenBSD: mbuf.h,v 1.56 2002/01/25 15:50:23 art Exp $ */
40#define M_CONF 0x0400 /* packet was encrypted (ESP-transport) */
41#define M_AUTH 0x0800 /* packet was authenticated (AH) */
42
43struct enchdr {
44 u_int32_t af;
45 u_int32_t spi;
46 u_int32_t flags;
47};