162587Sitojun/* $FreeBSD$ */ 278064Sume/* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $ */ 362587Sitojun 4139823Simp/*- 553541Sshin * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 653541Sshin * All rights reserved. 753541Sshin * 853541Sshin * Redistribution and use in source and binary forms, with or without 953541Sshin * modification, are permitted provided that the following conditions 1053541Sshin * are met: 1153541Sshin * 1. Redistributions of source code must retain the above copyright 1253541Sshin * notice, this list of conditions and the following disclaimer. 1353541Sshin * 2. Redistributions in binary form must reproduce the above copyright 1453541Sshin * notice, this list of conditions and the following disclaimer in the 1553541Sshin * documentation and/or other materials provided with the distribution. 1653541Sshin * 3. Neither the name of the project nor the names of its contributors 1753541Sshin * may be used to endorse or promote products derived from this software 1853541Sshin * without specific prior written permission. 1953541Sshin * 2053541Sshin * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 2153541Sshin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2253541Sshin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2353541Sshin * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 2453541Sshin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2553541Sshin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2653541Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2753541Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2853541Sshin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2953541Sshin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3053541Sshin * SUCH DAMAGE. 3153541Sshin */ 3253541Sshin 3353541Sshin/* 3453541Sshin * if_gif.h 3553541Sshin */ 3653541Sshin 3753541Sshin#ifndef _NET_IF_GIF_H_ 3853541Sshin#define _NET_IF_GIF_H_ 3953541Sshin 4062587Sitojun 4183997Sbrooks#ifdef _KERNEL 4262587Sitojun#include "opt_inet.h" 4383997Sbrooks#include "opt_inet6.h" 4462587Sitojun 4562587Sitojun#include <netinet/in.h> 4662587Sitojun/* xxx sigh, why route have struct route instead of pointer? */ 4762587Sitojun 4862587Sitojunstruct encaptab; 4962587Sitojun 5083998Sbrooksextern void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp, 5183998Sbrooks int af); 5283998Sbrooksextern void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m, 5383998Sbrooks int af); 5483998Sbrooksextern int (*ng_gif_output_p)(struct ifnet *ifp, struct mbuf **mp); 5583998Sbrooksextern void (*ng_gif_attach_p)(struct ifnet *ifp); 5683998Sbrooksextern void (*ng_gif_detach_p)(struct ifnet *ifp); 5783998Sbrooks 5853541Sshinstruct gif_softc { 59147256Sbrooks struct ifnet *gif_ifp; 60155037Sglebius struct mtx gif_mtx; 6162587Sitojun struct sockaddr *gif_psrc; /* Physical src addr */ 6262587Sitojun struct sockaddr *gif_pdst; /* Physical dst addr */ 6353541Sshin union { 6462587Sitojun struct route gifscr_ro; /* xxx */ 6562587Sitojun#ifdef INET6 6662587Sitojun struct route_in6 gifscr_ro6; /* xxx */ 6762587Sitojun#endif 6853541Sshin } gifsc_gifscr; 6962587Sitojun int gif_flags; 70178888Sjulian u_int gif_fibnum; 7162587Sitojun const struct encaptab *encap_cookie4; 7262587Sitojun const struct encaptab *encap_cookie6; 7383998Sbrooks void *gif_netgraph; /* ng_gif(4) netgraph node info */ 74193664Shrs u_int gif_options; 75105293Sume LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */ 7653541Sshin}; 77147256Sbrooks#define GIF2IFP(sc) ((sc)->gif_ifp) 78155037Sglebius#define GIF_LOCK_INIT(sc) mtx_init(&(sc)->gif_mtx, "gif softc", \ 79155037Sglebius NULL, MTX_DEF) 80155037Sglebius#define GIF_LOCK_DESTROY(sc) mtx_destroy(&(sc)->gif_mtx) 81155037Sglebius#define GIF_LOCK(sc) mtx_lock(&(sc)->gif_mtx) 82155037Sglebius#define GIF_UNLOCK(sc) mtx_unlock(&(sc)->gif_mtx) 83155037Sglebius#define GIF_LOCK_ASSERT(sc) mtx_assert(&(sc)->gif_mtx, MA_OWNED) 8453541Sshin 8562587Sitojun#define gif_ro gifsc_gifscr.gifscr_ro 8662587Sitojun#ifdef INET6 8762587Sitojun#define gif_ro6 gifsc_gifscr.gifscr_ro6 8862587Sitojun#endif 8953541Sshin 9062587Sitojun#define GIF_MTU (1280) /* Default MTU */ 9153541Sshin#define GIF_MTU_MIN (1280) /* Minimum MTU */ 9253541Sshin#define GIF_MTU_MAX (8192) /* Maximum MTU */ 9353541Sshin 94127898Sru#define MTAG_GIF 1080679712 95127898Sru#define MTAG_GIF_CALLED 0 96127898Sru 97153621Sthompsastruct etherip_header { 98193664Shrs#if BYTE_ORDER == LITTLE_ENDIAN 99193664Shrs u_int eip_resvl:4, /* reserved */ 100193664Shrs eip_ver:4; /* version */ 101193664Shrs#endif 102193664Shrs#if BYTE_ORDER == BIG_ENDIAN 103193664Shrs u_int eip_ver:4, /* version */ 104193664Shrs eip_resvl:4; /* reserved */ 105193664Shrs#endif 106193664Shrs u_int8_t eip_resvh; /* reserved */ 107193664Shrs} __packed; 108193664Shrs 109193664Shrs#define ETHERIP_VERSION 0x3 110189494Smarius/* mbuf adjust factor to force 32-bit alignment of IP header */ 111189494Smarius#define ETHERIP_ALIGN 2 112153621Sthompsa 11353541Sshin/* Prototypes */ 11492725Salfredvoid gif_input(struct mbuf *, int, struct ifnet *); 115249925Sglebiusint gif_output(struct ifnet *, struct mbuf *, const struct sockaddr *, 116191148Skmacy struct route *); 11792725Salfredint gif_ioctl(struct ifnet *, u_long, caddr_t); 118105293Sumeint gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *); 119105293Sumevoid gif_delete_tunnel(struct ifnet *); 120105293Sumeint gif_encapcheck(const struct mbuf *, int, int, void *); 12183997Sbrooks#endif /* _KERNEL */ 12283997Sbrooks 123193796Shrs#define GIFGOPTS _IOWR('i', 150, struct ifreq) 124193664Shrs#define GIFSOPTS _IOW('i', 151, struct ifreq) 125193664Shrs 126193664Shrs#define GIF_ACCEPT_REVETHIP 0x0001 127193664Shrs#define GIF_SEND_REVETHIP 0x0010 128193796Shrs#define GIF_OPTMASK (GIF_ACCEPT_REVETHIP|GIF_SEND_REVETHIP) 129193664Shrs 13053541Sshin#endif /* _NET_IF_GIF_H_ */ 131