FreeBSD/Linux Kernel Cross Reference
sys/net/if_gif.h
1 /* $FreeBSD$ */
2 /* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa 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 /*
34 * if_gif.h
35 */
36
37 #ifndef _NET_IF_GIF_H_
38 #define _NET_IF_GIF_H_
39
40
41 #if defined(_KERNEL) && !defined(_LKM)
42 #include "opt_inet.h"
43 #endif
44
45 #include <netinet/in.h>
46 /* xxx sigh, why route have struct route instead of pointer? */
47
48 struct encaptab;
49
50 struct gif_softc {
51 struct ifnet gif_if; /* common area - must be at the top */
52 struct sockaddr *gif_psrc; /* Physical src addr */
53 struct sockaddr *gif_pdst; /* Physical dst addr */
54 union {
55 struct route gifscr_ro; /* xxx */
56 #ifdef INET6
57 struct route_in6 gifscr_ro6; /* xxx */
58 #endif
59 } gifsc_gifscr;
60 int gif_flags;
61 const struct encaptab *encap_cookie4;
62 const struct encaptab *encap_cookie6;
63 struct resource *r_unit; /* resource allocated for this unit */
64 LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
65 };
66
67 #define gif_ro gifsc_gifscr.gifscr_ro
68 #ifdef INET6
69 #define gif_ro6 gifsc_gifscr.gifscr_ro6
70 #endif
71
72 #define GIF_MTU (1280) /* Default MTU */
73 #define GIF_MTU_MIN (1280) /* Minimum MTU */
74 #define GIF_MTU_MAX (8192) /* Maximum MTU */
75
76 /* Prototypes */
77 void gifattach0 __P((struct gif_softc *));
78 void gif_input __P((struct mbuf *, int, struct ifnet *));
79 int gif_output __P((struct ifnet *, struct mbuf *,
80 struct sockaddr *, struct rtentry *));
81 int gif_ioctl __P((struct ifnet *, u_long, caddr_t));
82 int gif_set_tunnel __P((struct ifnet *, struct sockaddr *, struct sockaddr *));
83 void gif_delete_tunnel __P((struct ifnet *));
84 int gif_encapcheck __P((const struct mbuf *, int, int, void *));
85
86 #endif /* _NET_IF_GIF_H_ */
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