| /* $FreeBSD: src/sys/net/if_gif.h,v 1.29.2.1.2.1 2009/10/25 01:10:29 kensmith Exp $ */ |
| /* $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 _BSD_NET_IF_GIF_H_ |
| #define _BSD_NET_IF_GIF_H_ |
| |
| |
| #ifdef _FREEBSD_KERNEL |
| #include "bsd_opt_inet.h" |
| #include "bsd_opt_inet6.h" |
| |
| #include <netinet/bsd_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; |
| u_int gif_fibnum; |
| const struct encaptab *encap_cookie4; |
| const struct encaptab *encap_cookie6; |
| void *gif_netgraph; /* ng_gif(4) netgraph node info */ |
| u_int gif_options; |
| 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 { |
| #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 *, int, struct ifnet *); |
| int gif_output(struct ifnet *, struct mbuf *, struct sockaddr *, |
| struct route *); |
| 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 *); |
| |
| VNET_DECLARE(int, ip_gif_ttl); |
| #define V_ip_gif_ttl VNET(ip_gif_ttl) |
| |
| #endif /* _FREEBSD_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 /* _BSD_NET_IF_GIF_H_ */ |
