xref: /freebsd/sys/net/if_gif.h (revision 8b07e49a008c89a15e1fc4a1e3db6d945f81fab4)
1686cdd19SJun-ichiro itojun Hagino /*	$FreeBSD$	*/
233841545SHajimu UMEMOTO /*	$KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $	*/
3686cdd19SJun-ichiro itojun Hagino 
4c398230bSWarner Losh /*-
582cd038dSYoshinobu Inoue  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
682cd038dSYoshinobu Inoue  * All rights reserved.
782cd038dSYoshinobu Inoue  *
882cd038dSYoshinobu Inoue  * Redistribution and use in source and binary forms, with or without
982cd038dSYoshinobu Inoue  * modification, are permitted provided that the following conditions
1082cd038dSYoshinobu Inoue  * are met:
1182cd038dSYoshinobu Inoue  * 1. Redistributions of source code must retain the above copyright
1282cd038dSYoshinobu Inoue  *    notice, this list of conditions and the following disclaimer.
1382cd038dSYoshinobu Inoue  * 2. Redistributions in binary form must reproduce the above copyright
1482cd038dSYoshinobu Inoue  *    notice, this list of conditions and the following disclaimer in the
1582cd038dSYoshinobu Inoue  *    documentation and/or other materials provided with the distribution.
1682cd038dSYoshinobu Inoue  * 3. Neither the name of the project nor the names of its contributors
1782cd038dSYoshinobu Inoue  *    may be used to endorse or promote products derived from this software
1882cd038dSYoshinobu Inoue  *    without specific prior written permission.
1982cd038dSYoshinobu Inoue  *
2082cd038dSYoshinobu Inoue  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
2182cd038dSYoshinobu Inoue  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2282cd038dSYoshinobu Inoue  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2382cd038dSYoshinobu Inoue  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
2482cd038dSYoshinobu Inoue  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2582cd038dSYoshinobu Inoue  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2682cd038dSYoshinobu Inoue  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2782cd038dSYoshinobu Inoue  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2882cd038dSYoshinobu Inoue  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2982cd038dSYoshinobu Inoue  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3082cd038dSYoshinobu Inoue  * SUCH DAMAGE.
3182cd038dSYoshinobu Inoue  */
3282cd038dSYoshinobu Inoue 
3382cd038dSYoshinobu Inoue /*
3482cd038dSYoshinobu Inoue  * if_gif.h
3582cd038dSYoshinobu Inoue  */
3682cd038dSYoshinobu Inoue 
3782cd038dSYoshinobu Inoue #ifndef _NET_IF_GIF_H_
3882cd038dSYoshinobu Inoue #define _NET_IF_GIF_H_
3982cd038dSYoshinobu Inoue 
40686cdd19SJun-ichiro itojun Hagino 
4120af0ffaSBrooks Davis #ifdef _KERNEL
42686cdd19SJun-ichiro itojun Hagino #include "opt_inet.h"
4320af0ffaSBrooks Davis #include "opt_inet6.h"
44686cdd19SJun-ichiro itojun Hagino 
45686cdd19SJun-ichiro itojun Hagino #include <netinet/in.h>
46686cdd19SJun-ichiro itojun Hagino /* xxx sigh, why route have struct route instead of pointer? */
47686cdd19SJun-ichiro itojun Hagino 
48686cdd19SJun-ichiro itojun Hagino struct encaptab;
49686cdd19SJun-ichiro itojun Hagino 
5094408d94SBrooks Davis extern	void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp,
5194408d94SBrooks Davis 		int af);
5294408d94SBrooks Davis extern	void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m,
5394408d94SBrooks Davis 		int af);
5494408d94SBrooks Davis extern	int  (*ng_gif_output_p)(struct ifnet *ifp, struct mbuf **mp);
5594408d94SBrooks Davis extern	void (*ng_gif_attach_p)(struct ifnet *ifp);
5694408d94SBrooks Davis extern	void (*ng_gif_detach_p)(struct ifnet *ifp);
5794408d94SBrooks Davis 
5882cd038dSYoshinobu Inoue struct gif_softc {
59fc74a9f9SBrooks Davis 	struct ifnet	*gif_ifp;
6025af0bb5SGleb Smirnoff 	struct mtx	gif_mtx;
6182cd038dSYoshinobu Inoue 	struct sockaddr	*gif_psrc; /* Physical src addr */
6282cd038dSYoshinobu Inoue 	struct sockaddr	*gif_pdst; /* Physical dst addr */
6382cd038dSYoshinobu Inoue 	union {
6482cd038dSYoshinobu Inoue 		struct route  gifscr_ro;    /* xxx */
65686cdd19SJun-ichiro itojun Hagino #ifdef INET6
6682cd038dSYoshinobu Inoue 		struct route_in6 gifscr_ro6; /* xxx */
67686cdd19SJun-ichiro itojun Hagino #endif
6882cd038dSYoshinobu Inoue 	} gifsc_gifscr;
6982cd038dSYoshinobu Inoue 	int		gif_flags;
708b07e49aSJulian Elischer 	u_int		gif_fibnum;
71686cdd19SJun-ichiro itojun Hagino 	const struct encaptab *encap_cookie4;
72686cdd19SJun-ichiro itojun Hagino 	const struct encaptab *encap_cookie6;
7394408d94SBrooks Davis 	void		*gif_netgraph;	/* ng_gif(4) netgraph node info */
749426aedfSHajimu UMEMOTO 	LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
7582cd038dSYoshinobu Inoue };
76fc74a9f9SBrooks Davis #define	GIF2IFP(sc)	((sc)->gif_ifp)
7725af0bb5SGleb Smirnoff #define	GIF_LOCK_INIT(sc)	mtx_init(&(sc)->gif_mtx, "gif softc",	\
7825af0bb5SGleb Smirnoff 				     NULL, MTX_DEF)
7925af0bb5SGleb Smirnoff #define	GIF_LOCK_DESTROY(sc)	mtx_destroy(&(sc)->gif_mtx)
8025af0bb5SGleb Smirnoff #define	GIF_LOCK(sc)		mtx_lock(&(sc)->gif_mtx)
8125af0bb5SGleb Smirnoff #define	GIF_UNLOCK(sc)		mtx_unlock(&(sc)->gif_mtx)
8225af0bb5SGleb Smirnoff #define	GIF_LOCK_ASSERT(sc)	mtx_assert(&(sc)->gif_mtx, MA_OWNED)
8382cd038dSYoshinobu Inoue 
8482cd038dSYoshinobu Inoue #define gif_ro gifsc_gifscr.gifscr_ro
85686cdd19SJun-ichiro itojun Hagino #ifdef INET6
8682cd038dSYoshinobu Inoue #define gif_ro6 gifsc_gifscr.gifscr_ro6
87686cdd19SJun-ichiro itojun Hagino #endif
8882cd038dSYoshinobu Inoue 
8982cd038dSYoshinobu Inoue #define GIF_MTU		(1280)	/* Default MTU */
9082cd038dSYoshinobu Inoue #define	GIF_MTU_MIN	(1280)	/* Minimum MTU */
9182cd038dSYoshinobu Inoue #define	GIF_MTU_MAX	(8192)	/* Maximum MTU */
9282cd038dSYoshinobu Inoue 
938c7e1947SRuslan Ermilov #define	MTAG_GIF	1080679712
948c7e1947SRuslan Ermilov #define	MTAG_GIF_CALLED	0
958c7e1947SRuslan Ermilov 
9673ff045cSAndrew Thompson struct etherip_header {
9773ff045cSAndrew Thompson 	u_int8_t eip_ver;	/* version/reserved */
9873ff045cSAndrew Thompson 	u_int8_t eip_pad;	/* required padding byte */
9973ff045cSAndrew Thompson };
10073ff045cSAndrew Thompson #define ETHERIP_VER_VERS_MASK   0x0f
10173ff045cSAndrew Thompson #define ETHERIP_VER_RSVD_MASK   0xf0
10273ff045cSAndrew Thompson #define ETHERIP_VERSION         0x03
10373ff045cSAndrew Thompson 
10482cd038dSYoshinobu Inoue /* Prototypes */
105929ddbbbSAlfred Perlstein void gif_input(struct mbuf *, int, struct ifnet *);
10634fe62c7SBruce Evans int gif_output(struct ifnet *, struct mbuf *, struct sockaddr *,
10734fe62c7SBruce Evans 	       struct rtentry *);
108929ddbbbSAlfred Perlstein int gif_ioctl(struct ifnet *, u_long, caddr_t);
1099426aedfSHajimu UMEMOTO int gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *);
1109426aedfSHajimu UMEMOTO void gif_delete_tunnel(struct ifnet *);
1119426aedfSHajimu UMEMOTO int gif_encapcheck(const struct mbuf *, int, int, void *);
11282cd038dSYoshinobu Inoue 
11320af0ffaSBrooks Davis #endif /* _KERNEL */
11420af0ffaSBrooks Davis 
11582cd038dSYoshinobu Inoue #endif /* _NET_IF_GIF_H_ */
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