1/* $NetBSD: esp_var.h,v 1.4 2008/04/23 06:09:05 thorpej Exp $ */
2/* $FreeBSD: src/sys/netipsec/esp_var.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $ */
3/* $OpenBSD: ip_esp.h,v 1.37 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 by 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_ESP_VAR_H_
41#define _NETIPSEC_ESP_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 reasonable value.
48 */
49#define ESP_ALG_MAX 256 /* NB: could be < but skipjack is 249 */
50
51#define ESP_STAT_HDROPS 0 /* packet shorter than header shows */
52#define ESP_STAT_NOPF 1 /* protocol family not supported */
53#define ESP_STAT_NOTDB 2
54#define ESP_STAT_BADKCR 3
55#define ESP_STAT_QFULL 4
56#define ESP_STAT_NOXFORM 5
57#define ESP_STAT_BADILEN 6
58#define ESP_STAT_WRAP 7 /* replay counter wrapped around */
59#define ESP_STAT_BADENC 8 /* bad encryption detected */
60#define ESP_STAT_BADAUTH 9 /* (only valid for xforms with auth) */
61#define ESP_STAT_REPLAY 10 /* possible packet replay detected */
62#define ESP_STAT_INPUT 11 /* input ESP packets */
63#define ESP_STAT_OUTPUT 12 /* output ESP packets */
64#define ESP_STAT_INVALID 13 /* trying to use an invalid TDB */
65#define ESP_STAT_IBYTES 14 /* input bytes */
66#define ESP_STAT_OBYTES 15 /* output bytes */
67#define ESP_STAT_TOOBIG 16 /* packet got larger than IP_MAXPACKET */
68#define ESP_STAT_PDROPS 17 /* packet blocked due to policy */
69#define ESP_STAT_CRYPTO 18 /* crypto processing failure */
70#define ESP_STAT_TUNNEL 19 /* tunnel sanity check failure */
71#define ESP_STAT_HIST 20 /* per-algorithm op count */
72 /* space for ESP_ALG_MAX (256) counters */
73
74#define ESP_NSTATS 276
75
76#ifdef _KERNEL
77extern int esp_enable;
78#endif /* _KERNEL */
79#endif /* !_NETIPSEC_ESP_VAR_H_ */
80