1 /* $FreeBSD: src/sys/netipsec/esp_var.h,v 1.2 2005/01/07 01:45:46 imp Exp $ */
2 /* $OpenBSD: ip_esp.h,v 1.37 2002/06/09 16:26:10 itojun 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 * The original version of this code was written by John Ioannidis
9 * for BSD/OS in Athens, Greece, 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 * Additional features in 1999 by Angelos D. Keromytis.
18 *
19 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
20 * Angelos D. Keromytis and Niels Provos.
21 * Copyright (c) 2001 Angelos D. Keromytis.
22 *
23 * Permission to use, copy, and modify this software with or without fee
24 * is hereby granted, provided that this entire notice is included in
25 * all copies of any software which is or includes a copy or
26 * modification of this software.
27 * You may use this code under the GNU public license if you so wish. Please
28 * contribute changes back to the authors under this freer than GPL license
29 * so that we may further the use of strong encryption without limitations to
30 * all.
31 *
32 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
33 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
34 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
35 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
36 * PURPOSE.
37 */
38
39 #ifndef _NETIPSEC_ESP_VAR_H_
40 #define _NETIPSEC_ESP_VAR_H_
41
42 /*
43 * These define the algorithm indices into the histogram. They're
44 * presently based on the PF_KEY v2 protocol values which is bogus;
45 * they should be decoupled from the protocol at which time we can
46 * pack them and reduce the size of the array to a reasonable value.
47 */
48 #define ESP_ALG_MAX 256 /* NB: could be < but skipjack is 249 */
49
50 struct espstat {
51 u_int32_t esps_hdrops; /* Packet shorter than header shows */
52 u_int32_t esps_nopf; /* Protocol family not supported */
53 u_int32_t esps_notdb;
54 u_int32_t esps_badkcr;
55 u_int32_t esps_qfull;
56 u_int32_t esps_noxform;
57 u_int32_t esps_badilen;
58 u_int32_t esps_wrap; /* Replay counter wrapped around */
59 u_int32_t esps_badenc; /* Bad encryption detected */
60 u_int32_t esps_badauth; /* Only valid for transforms with auth */
61 u_int32_t esps_replay; /* Possible packet replay detected */
62 u_int32_t esps_input; /* Input ESP packets */
63 u_int32_t esps_output; /* Output ESP packets */
64 u_int32_t esps_invalid; /* Trying to use an invalid TDB */
65 u_int64_t esps_ibytes; /* Input bytes */
66 u_int64_t esps_obytes; /* Output bytes */
67 u_int32_t esps_toobig; /* Packet got larger than IP_MAXPACKET */
68 u_int32_t esps_pdrops; /* Packet blocked due to policy */
69 u_int32_t esps_crypto; /* Crypto processing failure */
70 u_int32_t esps_tunnel; /* Tunnel sanity check failure */
71 u_int32_t esps_hist[ESP_ALG_MAX]; /* Per-algorithm op count */
72 };
73
74 #ifdef _KERNEL
75 extern int esp_enable;
76 extern struct espstat espstat;
77 #endif /* _KERNEL */
78 #endif /*_NETIPSEC_ESP_VAR_H_*/
79
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