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

     /*      $FreeBSD$       */
     /*      $OpenBSD: ip_ah.h,v 1.29 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 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_AH_VAR_H_
    #define _NETIPSEC_AH_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 minimum.
     */
    #define AH_ALG_MAX      16
    
    struct ahstat {
            uint64_t        ahs_hdrops;     /* Packet shorter than header shows */
            uint64_t        ahs_nopf;       /* Protocol family not supported */
            uint64_t        ahs_notdb;
            uint64_t        ahs_badkcr;
            uint64_t        ahs_badauth;
            uint64_t        ahs_noxform;
            uint64_t        ahs_qfull;
            uint64_t        ahs_wrap;
            uint64_t        ahs_replay;
            uint64_t        ahs_badauthl;   /* Bad authenticator length */
            uint64_t        ahs_input;      /* Input AH packets */
            uint64_t        ahs_output;     /* Output AH packets */
            uint64_t        ahs_invalid;    /* Trying to use an invalid TDB */
            uint64_t        ahs_ibytes;     /* Input bytes */
            uint64_t        ahs_obytes;     /* Output bytes */
            uint64_t        ahs_toobig;     /* Packet got larger than IP_MAXPACKET */
            uint64_t        ahs_pdrops;     /* Packet blocked due to policy */
            uint64_t        ahs_crypto;     /* Crypto processing failure */
            uint64_t        ahs_tunnel;     /* Tunnel sanity check failure */
            uint64_t        ahs_hist[AH_ALG_MAX];   /* Per-algorithm op count */
    };
    
    #ifdef _KERNEL
    #include <sys/counter.h>
    
    VNET_DECLARE(int, ah_enable);
    VNET_DECLARE(int, ah_cleartos);
    VNET_PCPUSTAT_DECLARE(struct ahstat, ahstat);
    
    #define AHSTAT_ADD(name, val)   \
        VNET_PCPUSTAT_ADD(struct ahstat, ahstat, name , (val))
    #define AHSTAT_INC(name)        AHSTAT_ADD(name, 1)
    #define V_ah_enable             VNET(ah_enable)
    #define V_ah_cleartos           VNET(ah_cleartos)
    #endif /* _KERNEL */
    #endif /*_NETIPSEC_AH_VAR_H_*/

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