25af0bb50e
however IPv4-in-IPv4 tunnels are now stable on SMP. Details: - Add per-softc mutex. - Hold the mutex on output. The main problem was the rtentry, placed in softc. It could be freed by ip_output(). Meanwhile, another thread being in in_gif_output() can read and write this rtentry. Reported by: many Tested by: Alexander Shiryaev <aixp mail.ru>
115 lines
3.9 KiB
C
115 lines
3.9 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.
|
|
*/
|
|
|
|
/*
|
|
* if_gif.h
|
|
*/
|
|
|
|
#ifndef _NET_IF_GIF_H_
|
|
#define _NET_IF_GIF_H_
|
|
|
|
|
|
#ifdef _KERNEL
|
|
#include "opt_inet.h"
|
|
#include "opt_inet6.h"
|
|
|
|
#include <netinet/in.h>
|
|
/* xxx sigh, why route have struct route instead of pointer? */
|
|
|
|
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 mtx gif_mtx;
|
|
struct sockaddr *gif_psrc; /* Physical src addr */
|
|
struct sockaddr *gif_pdst; /* Physical dst addr */
|
|
union {
|
|
struct route gifscr_ro; /* xxx */
|
|
#ifdef INET6
|
|
struct route_in6 gifscr_ro6; /* xxx */
|
|
#endif
|
|
} gifsc_gifscr;
|
|
int gif_flags;
|
|
const struct encaptab *encap_cookie4;
|
|
const struct encaptab *encap_cookie6;
|
|
void *gif_netgraph; /* ng_gif(4) netgraph node info */
|
|
LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */
|
|
};
|
|
#define GIF2IFP(sc) ((sc)->gif_ifp)
|
|
#define GIF_LOCK_INIT(sc) mtx_init(&(sc)->gif_mtx, "gif softc", \
|
|
NULL, MTX_DEF)
|
|
#define GIF_LOCK_DESTROY(sc) mtx_destroy(&(sc)->gif_mtx)
|
|
#define GIF_LOCK(sc) mtx_lock(&(sc)->gif_mtx)
|
|
#define GIF_UNLOCK(sc) mtx_unlock(&(sc)->gif_mtx)
|
|
#define GIF_LOCK_ASSERT(sc) mtx_assert(&(sc)->gif_mtx, MA_OWNED)
|
|
|
|
#define gif_ro gifsc_gifscr.gifscr_ro
|
|
#ifdef INET6
|
|
#define gif_ro6 gifsc_gifscr.gifscr_ro6
|
|
#endif
|
|
|
|
#define GIF_MTU (1280) /* Default MTU */
|
|
#define GIF_MTU_MIN (1280) /* Minimum MTU */
|
|
#define GIF_MTU_MAX (8192) /* Maximum MTU */
|
|
|
|
#define MTAG_GIF 1080679712
|
|
#define MTAG_GIF_CALLED 0
|
|
|
|
struct etherip_header {
|
|
u_int8_t eip_ver; /* version/reserved */
|
|
u_int8_t eip_pad; /* required padding byte */
|
|
};
|
|
#define ETHERIP_VER_VERS_MASK 0x0f
|
|
#define ETHERIP_VER_RSVD_MASK 0xf0
|
|
#define ETHERIP_VERSION 0x03
|
|
|
|
/* Prototypes */
|
|
void gif_input(struct mbuf *, int, struct ifnet *);
|
|
int gif_output(struct ifnet *, struct mbuf *, struct sockaddr *,
|
|
struct rtentry *);
|
|
int gif_ioctl(struct ifnet *, u_long, caddr_t);
|
|
int gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *);
|
|
void gif_delete_tunnel(struct ifnet *);
|
|
int gif_encapcheck(const struct mbuf *, int, int, void *);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _NET_IF_GIF_H_ */
|