bsd/net/if_pflog.h

   1 /*
   2  * Copyright (c) 2007-2018 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 /* $apfw: if_pflog.h,v 1.3 2007/08/13 22:18:33 jhw Exp $ */
  30 /* $OpenBSD: if_pflog.h,v 1.14 2006/10/25 11:27:01 henning Exp $ */
  31 /*
  32  * Copyright 2001 Niels Provos <provos@citi.umich.edu>
  33  * All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  * 1. Redistributions of source code must retain the above copyright
  39  *    notice, this list of conditions and the following disclaimer.
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  45  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  46  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  47  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  48  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  49  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  50  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  51  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  52  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  53  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  54  */
  55
  56 #ifndef _NET_IF_PFLOG_H_
  57 #define _NET_IF_PFLOG_H_
  58
  59 #if PF || !defined(KERNEL)
  60
  61 #ifdef  __cplusplus
  62 extern "C" {
  63 #endif
  64
  65 #define PFLOGIFS_MAX            16
  66 #define PFLOGIF_ZONE_MAX_ELEM           MIN(IFNETS_MAX, PFLOGIFS_MAX)
  67
  68 #if KERNEL_PRIVATE
  69 struct pflog_softc {
  70         struct ifnet            *sc_if;         /* back ptr to interface */
  71         u_int32_t               sc_flags;
  72 #define IFPFLF_DETACHING        0x1
  73         int                     sc_unit;
  74         LIST_ENTRY(pflog_softc) sc_list;
  75 };
  76 #endif /* KERNEL_PRIVATE */
  77
  78 #define PFLOG_RULESET_NAME_SIZE 16
  79
  80 struct pfloghdr {
  81         u_int8_t        length;
  82         sa_family_t     af;
  83         u_int8_t        action;
  84         u_int8_t        reason;
  85         char            ifname[IFNAMSIZ];
  86         char            ruleset[PFLOG_RULESET_NAME_SIZE];
  87         u_int32_t       rulenr;
  88         u_int32_t       subrulenr;
  89         uid_t           uid;
  90         pid_t           pid;
  91         uid_t           rule_uid;
  92         pid_t           rule_pid;
  93         u_int8_t        dir;
  94         u_int8_t        pad[3];
  95 };
  96
  97 #define PFLOG_HDRLEN            sizeof(struct pfloghdr)
  98 /* minus pad, also used as a signature */
  99 #define PFLOG_REAL_HDRLEN       offsetof(struct pfloghdr, pad)
 100
 101 #ifdef KERNEL_PRIVATE
 102
 103 #if PFLOG
 104 #define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) pflog_packet(i,a,b,c,d,e,f,g,h)
 105 #else
 106 #define PFLOG_PACKET(i,x,a,b,c,d,e,f,g,h) ((void)0)
 107 #endif /* PFLOG */
 108
 109 __private_extern__ void pfloginit(void);
 110 #endif /* KERNEL_PRIVATE */
 111
 112 #ifdef  __cplusplus
 113 }
 114 #endif
 115 #endif /* PF || !KERNEL */
 116 #endif /* _NET_IF_PFLOG_H_ */