sys/net/pf/if_pflog.h

   1 /* $OpenBSD: if_pflog.h,v 1.14 2006/10/25 11:27:01 henning Exp $ */
   2 /*
   3  * Copyright (c) 2004 The DragonFly Project.  All rights reserved.
   4  *
   5  * Copyright 2001 Niels Provos <provos@citi.umich.edu>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef _NET_IF_PFLOG_H_
  30 #define _NET_IF_PFLOG_H_
  31
  32 #define PFLOGIFS_MAX    16
  33
  34 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
  35
  36 struct pflog_softc {
  37         struct ifnet            sc_if;  /* the interface */
  38         int                     sc_unit;
  39         LIST_ENTRY(pflog_softc) sc_list;
  40 };
  41
  42 #endif
  43
  44 #define PFLOG_RULESET_NAME_SIZE 16
  45
  46 struct pfloghdr {
  47         u_int8_t        length;
  48         sa_family_t     af;
  49         u_int8_t        action;
  50         u_int8_t        reason;
  51         char            ifname[IFNAMSIZ];
  52         char            ruleset[PFLOG_RULESET_NAME_SIZE];
  53         u_int32_t       rulenr;
  54         u_int32_t       subrulenr;
  55         uid_t           uid;
  56         pid_t           pid;
  57         uid_t           rule_uid;
  58         pid_t           rule_pid;
  59         u_int8_t        dir;
  60         u_int8_t        pad[3];
  61 };
  62
  63 #define PFLOG_HDRLEN            sizeof(struct pfloghdr)
  64 /* minus pad, also used as a signature */
  65 #define PFLOG_REAL_HDRLEN       offsetof(struct pfloghdr, pad)
  66
  67 /* XXX remove later when old format logs are no longer needed */
  68 struct old_pfloghdr {
  69         u_int32_t af;
  70         char ifname[IFNAMSIZ];
  71         short rnr;
  72         u_short reason;
  73         u_short action;
  74         u_short dir;
  75 };
  76 #define OLD_PFLOG_HDRLEN        sizeof(struct old_pfloghdr)
  77
  78 #ifdef _KERNEL
  79
  80 #include "use_pflog.h"
  81
  82 #if NPFLOG > 0
  83 #define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) pflog_packet(i,a,b,c,d,e,f,g,h)
  84 #else
  85 #define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) ((void)0)
  86 #endif /* NPFLOG > 0 */
  87 #endif /* _KERNEL */
  88 #endif /* _NET_IF_PFLOG_H_ */