2 /* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $ */
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
37 #ifndef _NET_IF_GIF_H_
38 #define _NET_IF_GIF_H_
43 #include "opt_inet6.h"
45 #include <netinet/in.h>
46 /* xxx sigh, why route have struct route instead of pointer? */
50 extern void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp,
52 extern void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m,
54 extern int (*ng_gif_output_p)(struct ifnet *ifp, struct mbuf **mp);
55 extern void (*ng_gif_attach_p)(struct ifnet *ifp);
56 extern void (*ng_gif_detach_p)(struct ifnet *ifp);
59 struct ifnet *gif_ifp;
61 struct sockaddr *gif_psrc; /* Physical src addr */
62 struct sockaddr *gif_pdst; /* Physical dst addr */
64 struct route gifscr_ro; /* xxx */
66 struct route_in6 gifscr_ro6; /* xxx */
71 const struct encaptab *encap_cookie4;
72 const struct encaptab *encap_cookie6;
73 void *gif_netgraph; /* ng_gif(4) netgraph node info */
75 LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
77 #define GIF2IFP(sc) ((sc)->gif_ifp)
78 #define GIF_LOCK_INIT(sc) mtx_init(&(sc)->gif_mtx, "gif softc", \
80 #define GIF_LOCK_DESTROY(sc) mtx_destroy(&(sc)->gif_mtx)
81 #define GIF_LOCK(sc) mtx_lock(&(sc)->gif_mtx)
82 #define GIF_UNLOCK(sc) mtx_unlock(&(sc)->gif_mtx)
83 #define GIF_LOCK_ASSERT(sc) mtx_assert(&(sc)->gif_mtx, MA_OWNED)
85 #define gif_ro gifsc_gifscr.gifscr_ro
87 #define gif_ro6 gifsc_gifscr.gifscr_ro6
90 #define GIF_MTU (1280) /* Default MTU */
91 #define GIF_MTU_MIN (1280) /* Minimum MTU */
92 #define GIF_MTU_MAX (8192) /* Maximum MTU */
94 #define MTAG_GIF 1080679712
95 #define MTAG_GIF_CALLED 0
97 struct etherip_header {
98 #if BYTE_ORDER == LITTLE_ENDIAN
99 u_int eip_resvl:4, /* reserved */
100 eip_ver:4; /* version */
102 #if BYTE_ORDER == BIG_ENDIAN
103 u_int eip_ver:4, /* version */
104 eip_resvl:4; /* reserved */
106 u_int8_t eip_resvh; /* reserved */
109 #define ETHERIP_VERSION 0x3
110 /* mbuf adjust factor to force 32-bit alignment of IP header */
111 #define ETHERIP_ALIGN 2
114 void gif_input(struct mbuf *, int, struct ifnet *);
115 int gif_output(struct ifnet *, struct mbuf *, const struct sockaddr *,
117 int gif_ioctl(struct ifnet *, u_long, caddr_t);
118 int gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *);
119 void gif_delete_tunnel(struct ifnet *);
120 int gif_encapcheck(const struct mbuf *, int, int, void *);
123 #define GIFGOPTS _IOWR('i', 150, struct ifreq)
124 #define GIFSOPTS _IOW('i', 151, struct ifreq)
126 #define GIF_ACCEPT_REVETHIP 0x0001
127 #define GIF_SEND_REVETHIP 0x0010
128 #define GIF_OPTMASK (GIF_ACCEPT_REVETHIP|GIF_SEND_REVETHIP)
130 #endif /* _NET_IF_GIF_H_ */