The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netipsec/esp_var.h

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    1 /*      $NetBSD: esp_var.h,v 1.1.2.1 2004/05/10 15:00:45 tron 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 struct espstat {
   52         u_int64_t       esps_hdrops;    /* Packet shorter than header shows */
   53         u_int64_t       esps_nopf;      /* Protocol family not supported */
   54         u_int64_t       esps_notdb;
   55         u_int64_t       esps_badkcr;
   56         u_int64_t       esps_qfull;
   57         u_int64_t       esps_noxform;
   58         u_int64_t       esps_badilen;
   59         u_int64_t       esps_wrap;      /* Replay counter wrapped around */
   60         u_int64_t       esps_badenc;    /* Bad encryption detected */
   61         u_int64_t       esps_badauth;   /* Only valid for transforms with auth */
   62         u_int64_t       esps_replay;    /* Possible packet replay detected */
   63         u_int64_t       esps_input;     /* Input ESP packets */
   64         u_int64_t       esps_output;    /* Output ESP packets */
   65         u_int64_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_int64_t       esps_toobig;    /* Packet got larger than IP_MAXPACKET */
   69         u_int64_t       esps_pdrops;    /* Packet blocked due to policy */
   70         u_int64_t       esps_crypto;    /* Crypto processing failure */
   71         u_int64_t       esps_tunnel;    /* Tunnel sanity check failure */
   72         u_int64_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_*/

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