NetBSD/sys/net/if_gif.h

85 lines
3.0 KiB
C

/* $NetBSD: if_gif.h,v 1.19 2008/11/12 12:36:28 ad Exp $ */
/* $KAME: if_gif.h,v 1.23 2001/07/27 09:21:42 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* if_gif.h
*/
#ifndef _NET_IF_GIF_H_
#define _NET_IF_GIF_H_
#include <sys/queue.h>
#ifdef _KERNEL_OPT
#include "opt_inet.h"
#endif
#include <netinet/in.h>
/* xxx sigh, why route have struct route instead of pointer? */
struct encaptab;
struct gif_softc {
struct ifnet gif_if; /* common area - must be at the top */
struct sockaddr *gif_psrc; /* Physical src addr */
struct sockaddr *gif_pdst; /* Physical dst addr */
union {
struct route gifscr_ro; /* xxx */
} gifsc_gifscr;
int gif_flags;
const struct encaptab *encap_cookie4;
const struct encaptab *encap_cookie6;
LIST_ENTRY(gif_softc) gif_list; /* list of all gifs */
void *gif_si; /* softintr handle */
};
#define GIF_ROUTE_TTL 10
#define gif_ro gifsc_gifscr.gifscr_ro
#define GIF_MTU (1280) /* Default MTU */
#define GIF_MTU_MIN (1280) /* Minimum MTU */
#define GIF_MTU_MAX (8192) /* Maximum MTU */
/* Prototypes */
void gifattach0(struct gif_softc *);
void gif_input(struct mbuf *, int, struct ifnet *);
int gif_output(struct ifnet *, struct mbuf *,
const struct sockaddr *, struct rtentry *);
int gif_ioctl(struct ifnet *, u_long, void *);
int gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *);
void gif_delete_tunnel(struct ifnet *);
#ifdef GIF_ENCAPCHECK
int gif_encapcheck(struct mbuf *, int, int, void *);
#endif
#endif /* !_NET_IF_GIF_H_ */