1 /* $NetBSD: if_gif.h,v 1.19 2008/11/12 12:36:28 ad Exp $ */ 2 /* $KAME: if_gif.h,v 1.23 2001/07/27 09:21:42 itojun 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 #include <sys/queue.h> 41 42 #ifdef _KERNEL_OPT 43 #include "opt_inet.h" 44 #endif 45 46 #include <netinet/in.h> 47 /* xxx sigh, why route have struct route instead of pointer? */ 48 49 struct encaptab; 50 51 struct gif_softc { 52 struct ifnet gif_if; /* common area - must be at the top */ 53 struct sockaddr *gif_psrc; /* Physical src addr */ 54 struct sockaddr *gif_pdst; /* Physical dst addr */ 55 union { 56 struct route gifscr_ro; /* xxx */ 57 } gifsc_gifscr; 58 int gif_flags; 59 const struct encaptab *encap_cookie4; 60 const struct encaptab *encap_cookie6; 61 LIST_ENTRY(gif_softc) gif_list; /* list of all gifs */ 62 void *gif_si; /* softintr handle */ 63 }; 64 #define GIF_ROUTE_TTL 10 65 66 #define gif_ro gifsc_gifscr.gifscr_ro 67 68 #define GIF_MTU (1280) /* Default MTU */ 69 #define GIF_MTU_MIN (1280) /* Minimum MTU */ 70 #define GIF_MTU_MAX (8192) /* Maximum MTU */ 71 72 /* Prototypes */ 73 void gifattach0(struct gif_softc *); 74 void gif_input(struct mbuf *, int, struct ifnet *); 75 int gif_output(struct ifnet *, struct mbuf *, 76 const struct sockaddr *, struct rtentry *); 77 int gif_ioctl(struct ifnet *, u_long, void *); 78 int gif_set_tunnel(struct ifnet *, struct sockaddr *, struct sockaddr *); 79 void gif_delete_tunnel(struct ifnet *); 80 #ifdef GIF_ENCAPCHECK 81 int gif_encapcheck(struct mbuf *, int, int, void *); 82 #endif 83 84 #endif /* !_NET_IF_GIF_H_ */ 85