1 /* $FreeBSD: src/sys/net/if_gif.h,v 1.2.2.5 2002/11/08 16:23:08 ume Exp $ */ 2 /* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * if_gif.h 35 */ 36 37 #ifndef _NET_IF_GIF_H_ 38 #define _NET_IF_GIF_H_ 39 40 41 #if defined(_KERNEL) && !defined(_LKM) 42 #include "opt_inet.h" 43 #endif 44 45 #include <netinet/in.h> 46 /* xxx sigh, why route have struct route instead of pointer? */ 47 48 struct encaptab; 49 50 struct gif_softc { 51 struct ifnet gif_if; /* common area - must be at the top */ 52 struct sockaddr *gif_psrc; /* Physical src addr */ 53 struct sockaddr *gif_pdst; /* Physical dst addr */ 54 union { 55 struct route gifscr_ro; /* xxx */ 56 #ifdef INET6 57 struct route_in6 gifscr_ro6; /* xxx */ 58 #endif 59 } gifsc_gifscr; 60 int gif_flags; 61 const struct encaptab *encap_cookie4; 62 const struct encaptab *encap_cookie6; 63 struct resource *r_unit; /* resource allocated for this unit */ 64 LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */ 65 }; 66 67 #define gif_ro gifsc_gifscr.gifscr_ro 68 #ifdef INET6 69 #define gif_ro6 gifsc_gifscr.gifscr_ro6 70 #endif 71 72 #define GIF_MTU (1280) /* Default MTU */ 73 #define GIF_MTU_MIN (1280) /* Minimum MTU */ 74 #define GIF_MTU_MAX (8192) /* Maximum MTU */ 75 76 /* Prototypes */ 77 void gifattach0 __P((struct gif_softc *)); 78 void gif_input __P((struct mbuf *, int, struct ifnet *)); 79 int gif_output __P((struct ifnet *, struct mbuf *, 80 struct sockaddr *, struct rtentry *)); 81 int gif_ioctl __P((struct ifnet *, u_long, caddr_t)); 82 int gif_set_tunnel __P((struct ifnet *, struct sockaddr *, struct sockaddr *)); 83 void gif_delete_tunnel __P((struct ifnet *)); 84 int gif_encapcheck __P((const struct mbuf *, int, int, void *)); 85 86 #endif /* _NET_IF_GIF_H_ */ 87