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/ah_var.h

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    1 /*      $FreeBSD: releng/10.3/sys/netipsec/ah_var.h 253088 2013-07-09 10:08:13Z ae $    */
    2 /*      $OpenBSD: ip_ah.h,v 1.29 2002/06/09 16:26:10 itojun Exp $       */
    3 /*-
    4  * The authors of this code are John Ioannidis (ji@tla.org),
    5  * Angelos D. Keromytis (kermit@csd.uch.gr) and
    6  * Niels Provos (provos@physnet.uni-hamburg.de).
    7  *
    8  * The original version of this code was written by John Ioannidis
    9  * for BSD/OS in Athens, Greece, in November 1995.
   10  *
   11  * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
   12  * by Angelos D. Keromytis.
   13  *
   14  * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
   15  * and Niels Provos.
   16  *
   17  * Additional features in 1999 by Angelos D. Keromytis.
   18  *
   19  * Copyright (C) 1995, 1996, 1997, 1998, 1999 John Ioannidis,
   20  * Angelos D. Keromytis and Niels Provos.
   21  * Copyright (c) 2001 Angelos D. Keromytis.
   22  *
   23  * Permission to use, copy, and modify this software with or without fee
   24  * is hereby granted, provided that this entire notice is included in
   25  * all copies of any software which is or includes a copy or
   26  * modification of this software.
   27  * You may use this code under the GNU public license if you so wish. Please
   28  * contribute changes back to the authors under this freer than GPL license
   29  * so that we may further the use of strong encryption without limitations to
   30  * all.
   31  *
   32  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
   33  * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
   34  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
   35  * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
   36  * PURPOSE.
   37  */
   38 
   39 #ifndef _NETIPSEC_AH_VAR_H_
   40 #define _NETIPSEC_AH_VAR_H_
   41 
   42 /*
   43  * These define the algorithm indices into the histogram.  They're
   44  * presently based on the PF_KEY v2 protocol values which is bogus;
   45  * they should be decoupled from the protocol at which time we can
   46  * pack them and reduce the size of the array to a minimum.
   47  */
   48 #define AH_ALG_MAX      16
   49 
   50 struct ahstat {
   51         uint64_t        ahs_hdrops;     /* Packet shorter than header shows */
   52         uint64_t        ahs_nopf;       /* Protocol family not supported */
   53         uint64_t        ahs_notdb;
   54         uint64_t        ahs_badkcr;
   55         uint64_t        ahs_badauth;
   56         uint64_t        ahs_noxform;
   57         uint64_t        ahs_qfull;
   58         uint64_t        ahs_wrap;
   59         uint64_t        ahs_replay;
   60         uint64_t        ahs_badauthl;   /* Bad authenticator length */
   61         uint64_t        ahs_input;      /* Input AH packets */
   62         uint64_t        ahs_output;     /* Output AH packets */
   63         uint64_t        ahs_invalid;    /* Trying to use an invalid TDB */
   64         uint64_t        ahs_ibytes;     /* Input bytes */
   65         uint64_t        ahs_obytes;     /* Output bytes */
   66         uint64_t        ahs_toobig;     /* Packet got larger than IP_MAXPACKET */
   67         uint64_t        ahs_pdrops;     /* Packet blocked due to policy */
   68         uint64_t        ahs_crypto;     /* Crypto processing failure */
   69         uint64_t        ahs_tunnel;     /* Tunnel sanity check failure */
   70         uint64_t        ahs_hist[AH_ALG_MAX];   /* Per-algorithm op count */
   71 };
   72 
   73 #ifdef _KERNEL
   74 #include <sys/counter.h>
   75 
   76 VNET_DECLARE(int, ah_enable);
   77 VNET_DECLARE(int, ah_cleartos);
   78 VNET_PCPUSTAT_DECLARE(struct ahstat, ahstat);
   79 
   80 #define AHSTAT_ADD(name, val)   \
   81     VNET_PCPUSTAT_ADD(struct ahstat, ahstat, name , (val))
   82 #define AHSTAT_INC(name)        AHSTAT_ADD(name, 1)
   83 #define V_ah_enable             VNET(ah_enable)
   84 #define V_ah_cleartos           VNET(ah_cleartos)
   85 #endif /* _KERNEL */
   86 #endif /*_NETIPSEC_AH_VAR_H_*/

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