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/* $FreeBSD$ */
/* $OpenBSD: ip_esp.h,v 1.37 2002/06/09 16:26:10 itojun Exp $ */
/*
* The authors of this code are John Ioannidis (ji@tla.org),
* Angelos D. Keromytis (kermit@csd.uch.gr) and
* Niels Provos (provos@physnet.uni-hamburg.de).
*
* The original version of this code was written by John Ioannidis
* for BSD/OS in Athens, Greece, in November 1995.
*
* Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
* by Angelos D. Keromytis.
*
* Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
* and Niels Provos.
*
* Additional features in 1999 by Angelos D. Keromytis.
*
* Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
* Angelos D. Keromytis and Niels Provos.
* Copyright (c) 2001 Angelos D. Keromytis.
*
* Permission to use, copy, and modify this software with or without fee
* is hereby granted, provided that this entire notice is included in
* all copies of any software which is or includes a copy or
* modification of this software.
* You may use this code under the GNU public license if you so wish. Please
* contribute changes back to the authors under this freer than GPL license
* so that we may further the use of strong encryption without limitations to
* all.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*/
#ifndef _NETIPSEC_ESP_VAR_H_
#define _NETIPSEC_ESP_VAR_H_
/*
* These define the algorithm indices into the histogram. They're
* presently based on the PF_KEY v2 protocol values which is bogus;
* they should be decoupled from the protocol at which time we can
* pack them and reduce the size of the array to a reasonable value.
*/
#define ESP_ALG_MAX 256 /* NB: could be < but skipjack is 249 */
struct espstat {
u_int32_t esps_hdrops; /* Packet shorter than header shows */
u_int32_t esps_nopf; /* Protocol family not supported */
u_int32_t esps_notdb;
u_int32_t esps_badkcr;
u_int32_t esps_qfull;
u_int32_t esps_noxform;
u_int32_t esps_badilen;
u_int32_t esps_wrap; /* Replay counter wrapped around */
u_int32_t esps_badenc; /* Bad encryption detected */
u_int32_t esps_badauth; /* Only valid for transforms with auth */
u_int32_t esps_replay; /* Possible packet replay detected */
u_int32_t esps_input; /* Input ESP packets */
u_int32_t esps_output; /* Output ESP packets */
u_int32_t esps_invalid; /* Trying to use an invalid TDB */
u_int64_t esps_ibytes; /* Input bytes */
u_int64_t esps_obytes; /* Output bytes */
u_int32_t esps_toobig; /* Packet got larger than IP_MAXPACKET */
u_int32_t esps_pdrops; /* Packet blocked due to policy */
u_int32_t esps_crypto; /* Crypto processing failure */
u_int32_t esps_tunnel; /* Tunnel sanity check failure */
u_int32_t esps_hist[ESP_ALG_MAX]; /* Per-algorithm op count */
};
#ifdef _KERNEL
extern int esp_enable;
extern struct espstat espstat;
#endif /* _KERNEL */
#endif /*_NETIPSEC_ESP_VAR_H_*/
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