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esp_var.h revision 1.4 
      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 (at) tla.org),
      6  * Angelos D. Keromytis (kermit (at) csd.uch.gr) and
      7  * Niels Provos (provos (at) 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
     77 extern	int esp_enable;
     78 #endif /* _KERNEL */
     79 #endif /* !_NETIPSEC_ESP_VAR_H_ */
     80