134 lines
4.6 KiB
C
134 lines
4.6 KiB
C
/* $FreeBSD$ */
|
|
/* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa 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.
|
|
*/
|
|
|
|
#ifndef _NET_IF_GIF_H_
|
|
#define _NET_IF_GIF_H_
|
|
|
|
#ifdef _KERNEL
|
|
#include "opt_inet.h"
|
|
#include "opt_inet6.h"
|
|
|
|
#include <netinet/in.h>
|
|
|
|
struct ip;
|
|
struct ip6_hdr;
|
|
struct encaptab;
|
|
|
|
extern void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp,
|
|
int af);
|
|
extern void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m,
|
|
int af);
|
|
extern int (*ng_gif_output_p)(struct ifnet *ifp, struct mbuf **mp);
|
|
extern void (*ng_gif_attach_p)(struct ifnet *ifp);
|
|
extern void (*ng_gif_detach_p)(struct ifnet *ifp);
|
|
|
|
struct gif_softc {
|
|
struct ifnet *gif_ifp;
|
|
struct rmlock gif_lock;
|
|
const struct encaptab *gif_ecookie;
|
|
int gif_family;
|
|
int gif_flags;
|
|
u_int gif_fibnum;
|
|
u_int gif_options;
|
|
void *gif_netgraph; /* netgraph node info */
|
|
union {
|
|
void *hdr;
|
|
struct ip *iphdr;
|
|
#ifdef INET6
|
|
struct ip6_hdr *ip6hdr;
|
|
#endif
|
|
} gif_uhdr;
|
|
LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
|
|
};
|
|
#define GIF2IFP(sc) ((sc)->gif_ifp)
|
|
#define GIF_LOCK_INIT(sc) rm_init(&(sc)->gif_lock, "gif softc")
|
|
#define GIF_LOCK_DESTROY(sc) rm_destroy(&(sc)->gif_lock)
|
|
#define GIF_RLOCK_TRACKER struct rm_priotracker gif_tracker
|
|
#define GIF_RLOCK(sc) rm_rlock(&(sc)->gif_lock, &gif_tracker)
|
|
#define GIF_RUNLOCK(sc) rm_runlock(&(sc)->gif_lock, &gif_tracker)
|
|
#define GIF_RLOCK_ASSERT(sc) rm_assert(&(sc)->gif_lock, RA_RLOCKED)
|
|
#define GIF_WLOCK(sc) rm_wlock(&(sc)->gif_lock)
|
|
#define GIF_WUNLOCK(sc) rm_wunlock(&(sc)->gif_lock)
|
|
#define GIF_WLOCK_ASSERT(sc) rm_assert(&(sc)->gif_lock, RA_WLOCKED)
|
|
|
|
#define gif_iphdr gif_uhdr.iphdr
|
|
#define gif_hdr gif_uhdr.hdr
|
|
#ifdef INET6
|
|
#define gif_ip6hdr gif_uhdr.ip6hdr
|
|
#endif
|
|
|
|
#define GIF_MTU (1280) /* Default MTU */
|
|
#define GIF_MTU_MIN (1280) /* Minimum MTU */
|
|
#define GIF_MTU_MAX (8192) /* Maximum MTU */
|
|
|
|
struct etherip_header {
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
u_int eip_resvl:4, /* reserved */
|
|
eip_ver:4; /* version */
|
|
#endif
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_int eip_ver:4, /* version */
|
|
eip_resvl:4; /* reserved */
|
|
#endif
|
|
u_int8_t eip_resvh; /* reserved */
|
|
} __packed;
|
|
|
|
#define ETHERIP_VERSION 0x3
|
|
/* mbuf adjust factor to force 32-bit alignment of IP header */
|
|
#define ETHERIP_ALIGN 2
|
|
|
|
/* Prototypes */
|
|
void gif_input(struct mbuf *, struct ifnet *, int, uint8_t);
|
|
int gif_output(struct ifnet *, struct mbuf *, const struct sockaddr *,
|
|
struct route *);
|
|
int gif_encapcheck(const struct mbuf *, int, int, void *);
|
|
#ifdef INET
|
|
int in_gif_output(struct ifnet *, struct mbuf *, int, uint8_t);
|
|
int in_gif_encapcheck(const struct mbuf *, int, int, void *);
|
|
int in_gif_attach(struct gif_softc *);
|
|
#endif
|
|
#ifdef INET6
|
|
int in6_gif_output(struct ifnet *, struct mbuf *, int, uint8_t);
|
|
int in6_gif_encapcheck(const struct mbuf *, int, int, void *);
|
|
int in6_gif_attach(struct gif_softc *);
|
|
#endif
|
|
#endif /* _KERNEL */
|
|
|
|
#define GIFGOPTS _IOWR('i', 150, struct ifreq)
|
|
#define GIFSOPTS _IOW('i', 151, struct ifreq)
|
|
|
|
#define GIF_ACCEPT_REVETHIP 0x0001
|
|
#define GIF_SEND_REVETHIP 0x0010
|
|
#define GIF_OPTMASK (GIF_ACCEPT_REVETHIP|GIF_SEND_REVETHIP)
|
|
|
|
#endif /* _NET_IF_GIF_H_ */
|