1/* $NetBSD: ah_var.h,v 1.4 2008/04/23 06:09:05 thorpej Exp $ */
2/* $FreeBSD: src/sys/netipsec/ah_var.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $ */
3/* $OpenBSD: ip_ah.h,v 1.29 2002/06/09 16:26:10 itojun Exp $ */
4/*
5 * The authors of this code are John Ioannidis (ji@tla.org),
6 * Angelos D. Keromytis (kermit@csd.uch.gr) and
7 * Niels Provos (provos@physnet.uni-hamburg.de).
8 *
9 * The original version of this code was written by John Ioannidis
10 * for BSD/OS in Athens, Greece, in November 1995.
11 *
12 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
13 * by Angelos D. Keromytis.
14 *
15 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
16 * and Niels Provos.
17 *
18 * Additional features in 1999 by Angelos D. Keromytis.
19 *
20 * Copyright (C) 1995, 1996, 1997, 1998, 1999 John Ioannidis,
21 * Angelos D. Keromytis and Niels Provos.
22 * Copyright (c) 2001 Angelos D. Keromytis.
23 *
24 * Permission to use, copy, and modify this software with or without fee
25 * is hereby granted, provided that this entire notice is included in
26 * all copies of any software which is or includes a copy or
27 * modification of this software.
28 * You may use this code under the GNU public license if you so wish. Please
29 * contribute changes back to the authors under this freer than GPL license
30 * so that we may further the use of strong encryption without limitations to
31 * all.
32 *
33 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
34 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
35 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
36 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
37 * PURPOSE.
38 */
39
40#ifndef _NETIPSEC_AH_VAR_H_
41#define _NETIPSEC_AH_VAR_H_
42
43/*
44 * These define the algorithm indices into the histogram. They're
45 * presently based on the PF_KEY v2 protocol values which is bogus;
46 * they should be decoupled from the protocol at which time we can
47 * pack them and reduce the size of the array to a minimum.
48 */
49#define AH_ALG_MAX 16
50
51#define AH_STAT_HDROPS 0 /* packet shorter than header shows */
52#define AH_STAT_NOPF 1 /* protocol family not supported */
53#define AH_STAT_NOTDB 2
54#define AH_STAT_BADKCR 3
55#define AH_STAT_BADAUTH 4
56#define AH_STAT_NOXFORM 5
57#define AH_STAT_QFULL 6
58#define AH_STAT_WRAP 7
59#define AH_STAT_REPLAY 8
60#define AH_STAT_BADAUTHL 9 /* bad authenticator length */
61#define AH_STAT_INPUT 10 /* input AH packets */
62#define AH_STAT_OUTPUT 11 /* output AH packets */
63#define AH_STAT_INVALID 12 /* trying to use an invalid TDB */
64#define AH_STAT_IBYTES 13 /* input bytes */
65#define AH_STAT_OBYTES 14 /* output bytes */
66#define AH_STAT_TOOBIG 15 /* packet got > than IP_MAXPACKET */
67#define AH_STAT_PDROPS 16 /* packet blocked due to policy */
68#define AH_STAT_CRYPTO 17 /* crypto processing failure */
69#define AH_STAT_TUNNEL 18 /* tunnel sanity check failure */
70#define AH_STAT_HIST 19 /* per-algorithm op count */
71 /* space for AH_ALG_MAX (16) counters */
72
73#define AH_NSTATS 35
74
75#ifdef _KERNEL
76extern int ah_enable;
77extern int ah_cleartos;
78#endif /* _KERNEL */
79#endif /* !_NETIPSEC_AH_VAR_H_ */
80