bsd/netinet/ip_encap.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*      $KAME: ip_encap.h,v 1.6 2000/03/06 04:34:21 itojun Exp $        */
  31
  32 /*
  33  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. Neither the name of the project nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  */
  60
  61 #ifndef _NETINET_IP_ENCAP_H_
  62 #define _NETINET_IP_ENCAP_H_
  63 #include <sys/appleapiopts.h>
  64
  65 #ifdef KERNEL_PRIVATE
  66
  67 struct encaptab {
  68         LIST_ENTRY(encaptab) chain;
  69         int af;
  70         int proto;                      /* -1: don't care, I'll check myself */
  71         struct sockaddr_storage src;    /* my addr */
  72         struct sockaddr_storage srcmask;
  73         struct sockaddr_storage dst;    /* remote addr */
  74         struct sockaddr_storage dstmask;
  75         int (*func)(const struct mbuf *, int, int, void *);
  76         const struct protosw *psw;      /* only pr_input will be used */
  77         void *arg;                      /* passed via m->m_pkthdr.aux */
  78 };
  79
  80 void    encap_init(void);
  81 void    encap4_input(struct mbuf *, int);
  82 int     encap6_input(struct mbuf **, int *);
  83 const struct encaptab *encap_attach(int, int, const struct sockaddr *,
  84         const struct sockaddr *, const struct sockaddr *,
  85         const struct sockaddr *, const struct protosw *, void *);
  86 const struct encaptab *encap_attach_func(int, int,
  87         int (*)(const struct mbuf *, int, int, void *),
  88         const struct protosw *, void *);
  89 int     encap_detach(const struct encaptab *);
  90 void    *encap_getarg(struct mbuf *);
  91 #endif KERNEL_PRIVATE
  92
  93 #endif /*_NETINET_IP_ENCAP_H_*/