bsd/netinet/ip_encap.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*      $KAME: ip_encap.h,v 1.6 2000/03/06 04:34:21 itojun Exp $        */
  23
  24 /*
  25  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  26  * All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. Neither the name of the project nor the names of its contributors
  37  *    may be used to endorse or promote products derived from this software
  38  *    without specific prior written permission.
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  */
  52
  53 #ifndef _NETINET_IP_ENCAP_H_
  54 #define _NETINET_IP_ENCAP_H_
  55
  56 #if KERNEL
  57
  58 struct encaptab {
  59         LIST_ENTRY(encaptab) chain;
  60         int af;
  61         int proto;                      /* -1: don't care, I'll check myself */
  62         struct sockaddr_storage src;    /* my addr */
  63         struct sockaddr_storage srcmask;
  64         struct sockaddr_storage dst;    /* remote addr */
  65         struct sockaddr_storage dstmask;
  66         int (*func) __P((const struct mbuf *, int, int, void *));
  67         const struct protosw *psw;      /* only pr_input will be used */
  68         void *arg;                      /* passed via m->m_pkthdr.aux */
  69 };
  70
  71 void    encap_init __P((void));
  72 void    encap4_input __P((struct mbuf *, int, int));
  73 int     encap6_input __P((struct mbuf **, int *, int));
  74 const struct encaptab *encap_attach __P((int, int, const struct sockaddr *,
  75         const struct sockaddr *, const struct sockaddr *,
  76         const struct sockaddr *, const struct protosw *, void *));
  77 const struct encaptab *encap_attach_func __P((int, int,
  78         int (*) __P((const struct mbuf *, int, int, void *)),
  79         const struct protosw *, void *));
  80 int     encap_detach __P((const struct encaptab *));
  81 void    *encap_getarg __P((struct mbuf *));
  82 #endif
  83
  84 #endif /*_NETINET_IP_ENCAP_H_*/