1 /* $FreeBSD: src/sys/net/if_gif.h,v 1.2.2.5 2002/11/08 16:23:08 ume Exp $ */ 2 /* $DragonFly: src/sys/net/gif/if_gif.h,v 1.4 2004/03/23 22:19:06 hsu Exp $ */ 3 /* $KAME: if_gif.h,v 1.17 2000/09/11 11:36:41 sumikawa Exp $ */ 4 5 /* 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 /* 35 * if_gif.h 36 */ 37 38 #ifndef _NET_IF_GIF_H_ 39 #define _NET_IF_GIF_H_ 40 41 42 #if defined(_KERNEL) && !defined(_LKM) 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 #ifdef INET6 58 struct route_in6 gifscr_ro6; /* xxx */ 59 #endif 60 } gifsc_gifscr; 61 int gif_flags; 62 const struct encaptab *encap_cookie4; 63 const struct encaptab *encap_cookie6; 64 struct resource *r_unit; /* resource allocated for this unit */ 65 LIST_ENTRY(gif_softc) gif_list; /* all gif's are linked */ 66 }; 67 68 #define gif_ro gifsc_gifscr.gifscr_ro 69 #ifdef INET6 70 #define gif_ro6 gifsc_gifscr.gifscr_ro6 71 #endif 72 73 #define GIF_MTU (1280) /* Default MTU */ 74 #define GIF_MTU_MIN (1280) /* Minimum MTU */ 75 #define GIF_MTU_MAX (8192) /* Maximum MTU */ 76 77 /* Prototypes */ 78 void gifattach0 (struct gif_softc *); 79 void gif_input (struct mbuf *, int, struct ifnet *); 80 int gif_output (struct ifnet *, struct mbuf *, 81 struct sockaddr *, struct rtentry *); 82 int gif_ioctl (struct ifnet *, u_long, caddr_t, struct ucred *); 83 int gif_set_tunnel (struct ifnet *, struct sockaddr *, struct sockaddr *); 84 void gif_delete_tunnel (struct ifnet *); 85 int gif_encapcheck (const struct mbuf *, int, int, void *); 86 87 #endif /* _NET_IF_GIF_H_ */ 88