sys/netproto/ipsec/esp_var.h

   1 /*      $FreeBSD: src/sys/netipsec/esp_var.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $    */
   2 /*      $DragonFly: src/sys/netproto/ipsec/esp_var.h,v 1.2 2003/06/17 04:28:53 dillon 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 struct espstat {
  52         u_int32_t       esps_hdrops;    /* Packet shorter than header shows */
  53         u_int32_t       esps_nopf;      /* Protocol family not supported */
  54         u_int32_t       esps_notdb;
  55         u_int32_t       esps_badkcr;
  56         u_int32_t       esps_qfull;
  57         u_int32_t       esps_noxform;
  58         u_int32_t       esps_badilen;
  59         u_int32_t       esps_wrap;      /* Replay counter wrapped around */
  60         u_int32_t       esps_badenc;    /* Bad encryption detected */
  61         u_int32_t       esps_badauth;   /* Only valid for transforms with auth */
  62         u_int32_t       esps_replay;    /* Possible packet replay detected */
  63         u_int32_t       esps_input;     /* Input ESP packets */
  64         u_int32_t       esps_output;    /* Output ESP packets */
  65         u_int32_t       esps_invalid;   /* Trying to use an invalid TDB */
  66         u_int64_t       esps_ibytes;    /* Input bytes */
  67         u_int64_t       esps_obytes;    /* Output bytes */
  68         u_int32_t       esps_toobig;    /* Packet got larger than IP_MAXPACKET */
  69         u_int32_t       esps_pdrops;    /* Packet blocked due to policy */
  70         u_int32_t       esps_crypto;    /* Crypto processing failure */
  71         u_int32_t       esps_tunnel;    /* Tunnel sanity check failure */
  72         u_int32_t       esps_hist[ESP_ALG_MAX]; /* Per-algorithm op count */
  73 };
  74
  75 #ifdef _KERNEL
  76 extern  int esp_enable;
  77 extern  struct espstat espstat;
  78 #endif /* _KERNEL */
  79 #endif /*_NETIPSEC_ESP_VAR_H_*/