xref: /netbsd/sys/netinet6/in6_gif.h (revision c4a72b64)
1 /*	$NetBSD: in6_gif.h,v 1.9 2002/11/11 18:35:28 itojun Exp $	*/
2 /*	$KAME: in6_gif.h,v 1.7 2001/07/26 06:53:16 jinmei Exp $	*/
3 
4 /*
5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the project nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #ifndef _NETINET6_IN6_GIF_H_
34 #define _NETINET6_IN6_GIF_H_
35 
36 #define GIF_HLIM	30
37 extern int	ip6_gif_hlim;		/* Hop limit for gif encap packet */
38 
39 struct gif_softc;
40 struct sockaddr;
41 int in6_gif_input __P((struct mbuf **, int *, int));
42 int in6_gif_output __P((struct ifnet *, int, struct mbuf *));
43 #ifdef GIF_ENCAPCHECK
44 int gif_encapcheck6 __P((const struct mbuf *, int, int, void *));
45 #endif
46 int in6_gif_attach __P((struct gif_softc *));
47 int in6_gif_detach __P((struct gif_softc *));
48 void in6_gif_ctlinput __P((int, struct sockaddr *, void *));
49 
50 #endif /* _NETINET6_IN6_GIF_H_ */
51