bsd/net/if_gif.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*      $KAME: if_gif.h,v 1.7 2000/02/22 14:01:46 itojun Exp $  */
  23
  24 /*
  25  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  26  * All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. Neither the name of the project nor the names of its contributors
  37  *    may be used to endorse or promote products derived from this software
  38  *    without specific prior written permission.
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  */
  52
  53 /*
  54  * if_gif.h
  55  */
  56
  57 #ifndef _NET_IF_GIF_H_
  58 #define _NET_IF_GIF_H_
  59
  60 #include <netinet/in.h>
  61 /* xxx sigh, why route have struct route instead of pointer? */
  62
  63 struct encaptab;
  64
  65 struct gif_softc {
  66         struct ifnet    gif_if;    /* common area */
  67         struct sockaddr *gif_psrc; /* Physical src addr */
  68         struct sockaddr *gif_pdst; /* Physical dst addr */
  69         union {
  70                 struct route  gifscr_ro;    /* xxx */
  71 #if INET6
  72                 struct route_in6 gifscr_ro6; /* xxx */
  73 #endif
  74         } gifsc_gifscr;
  75         int             gif_flags;
  76         const struct encaptab *encap_cookie;
  77         short           gif_oflags;     /* copy of ifp->if_flags */
  78 };
  79
  80 #define gif_ro gifsc_gifscr.gifscr_ro
  81 #if INET6
  82 #define gif_ro6 gifsc_gifscr.gifscr_ro6
  83 #endif
  84
  85 #define GIFF_INUSE      0x1     /* gif is in use */
  86
  87 #define GIF_MTU         (1280)  /* Default MTU */
  88 #define GIF_MTU_MIN     (1280)  /* Minimum MTU */
  89 #define GIF_MTU_MAX     (8192)  /* Maximum MTU */
  90
  91 #define GIF_TTL         30
  92 #define GIF_HLIM        30
  93
  94 extern int ngif;
  95 extern struct gif_softc *gif;
  96
  97 /* Prototypes */
  98 void gif_input __P((struct mbuf *, int, struct ifnet *));
  99 int gif_output __P((struct ifnet *, struct mbuf *,
 100                     struct sockaddr *, struct rtentry *));
 101 int gif_ioctl __P((struct ifnet *, u_long, caddr_t));
 102
 103 #endif /* _NET_IF_GIF_H_ */