sys/netinet/in_gif.h

   1 /*      $FreeBSD: src/sys/netinet/in_gif.h,v 1.3.2.4 2002/11/08 16:57:13 ume Exp $      */
   2 /*      $DragonFly: src/sys/netinet/in_gif.h,v 1.5 2006/05/20 02:42:12 dillon Exp $     */
   3 /*      $KAME: in_gif.h,v 1.5 2000/04/14 08:36:02 itojun 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_IN_GIF_H_
  35 #define _NETINET_IN_GIF_H_
  36
  37 #define GIF_TTL         30
  38
  39 extern int ip_gif_ttl;
  40
  41 struct gif_softc;
  42 struct mbuf;
  43 struct ifnet;
  44
  45 int in_gif_input (struct mbuf **, int *, int);
  46 int in_gif_output (struct ifnet *, int, struct mbuf *);
  47 int gif_encapcheck4 (const struct mbuf *, int, int, void *);
  48 int in_gif_attach (struct gif_softc *);
  49 int in_gif_detach (struct gif_softc *);
  50
  51 #endif /*_NETINET_IN_GIF_H_*/