| 1 | /* $NetBSD: if_gif.h,v 1.24 2016/06/24 04:38:12 knakahara 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 | }; |
| 63 | #define GIF_ROUTE_TTL 10 |
| 64 | |
| 65 | #define gif_ro gifsc_gifscr.gifscr_ro |
| 66 | |
| 67 | #define GIF_MTU (1280) /* Default MTU */ |
| 68 | #define GIF_MTU_MIN (1280) /* Minimum MTU */ |
| 69 | #define GIF_MTU_MAX (8192) /* Maximum MTU */ |
| 70 | |
| 71 | /* Prototypes */ |
| 72 | void gif_input(struct mbuf *, int, struct ifnet *); |
| 73 | |
| 74 | #ifdef GIF_ENCAPCHECK |
| 75 | int gif_encapcheck(struct mbuf *, int, int, void *); |
| 76 | #endif |
| 77 | |
| 78 | /* |
| 79 | * Locking notes: |
| 80 | * - All members of struct si_sync are protected by si_lock (an adaptive mutex) |
| 81 | */ |
| 82 | #endif /* !_NET_IF_GIF_H_ */ |
| 83 | |