sys/netinet/ip_encap.h

   1 /*      $FreeBSD: src/sys/netinet/ip_encap.h,v 1.1.2.2 2002/11/20 23:20:54 luigi Exp $  */
   2 /*      $DragonFly: src/sys/netinet/ip_encap.h,v 1.4 2006/05/20 02:42:12 dillon Exp $   */
   3 /*      $KAME: ip_encap.h,v 1.7 2000/03/25 07:23:37 sumikawa Exp $      */
   4
   5 /*
   6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifndef _NETINET_IP_ENCAP_H_
  35 #define _NETINET_IP_ENCAP_H_
  36
  37 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
  38
  39 #ifndef _SYS_QUEUE_H_
  40 #include <sys/queue.h>
  41 #endif
  42 #ifndef _SYS_SOCKET_H_
  43 #include <sys/socket.h>
  44 #endif
  45
  46 struct mbuf;
  47
  48 struct encaptab {
  49         LIST_ENTRY(encaptab) chain;
  50         int af;
  51         int proto;                      /* -1: don't care, I'll check myself */
  52         struct sockaddr_storage src;    /* my addr */
  53         struct sockaddr_storage srcmask;
  54         struct sockaddr_storage dst;    /* remote addr */
  55         struct sockaddr_storage dstmask;
  56         int (*func)(const struct mbuf *, int, int, void *);
  57         const struct protosw *psw;      /* only pr_input will be used */
  58         void *arg;                      /* passed via m->m_pkthdr.aux */
  59 };
  60
  61 #endif
  62
  63 #ifdef _KERNEL
  64
  65 void    encap_init(void);
  66 void    encap4_input(struct mbuf *, ...);
  67 int     encap6_input(struct mbuf **, int *, int);
  68 const struct encaptab *encap_attach(int, int, const struct sockaddr *,
  69         const struct sockaddr *, const struct sockaddr *,
  70         const struct sockaddr *, const struct protosw *, void *);
  71 const struct encaptab *encap_attach_func(int, int,
  72         int (*)(const struct mbuf *, int, int, void *),
  73         const struct protosw *, void *);
  74 int     encap_detach(const struct encaptab *);
  75 void    *encap_getarg(struct mbuf *);
  76
  77 #endif
  78
  79 #endif /*_NETINET_IP_ENCAP_H_*/