bsd/net/if_gif.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*      $KAME: if_gif.h,v 1.7 2000/02/22 14:01:46 itojun Exp $  */
  24
  25 /*
  26  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  27  * All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. Neither the name of the project nor the names of its contributors
  38  *    may be used to endorse or promote products derived from this software
  39  *    without specific prior written permission.
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  */
  53
  54 /*
  55  * if_gif.h
  56  */
  57
  58 #ifndef _NET_IF_GIF_H_
  59 #define _NET_IF_GIF_H_
  60 #include <sys/appleapiopts.h>
  61
  62 #include <netinet/in.h>
  63 /* xxx sigh, why route have struct route instead of pointer? */
  64
  65 #ifdef KERNEL_PRIVATE
  66 struct encaptab;
  67
  68 struct gif_softc {
  69         struct ifnet    gif_if;    /* common area - must be at the top */
  70         struct sockaddr *gif_psrc; /* Physical src addr */
  71         struct sockaddr *gif_pdst; /* Physical dst addr */
  72 #ifdef __APPLE__
  73         u_long  gif_proto; /* dlil protocol attached */
  74 #endif
  75         union {
  76                 struct route  gifscr_ro;    /* xxx */
  77 #if INET6
  78                 struct route_in6 gifscr_ro6; /* xxx */
  79 #endif
  80         } gifsc_gifscr;
  81         int             gif_flags;
  82         int             gif_called;
  83         const struct encaptab *encap_cookie4;
  84         const struct encaptab *encap_cookie6;
  85         TAILQ_ENTRY(gif_softc) gif_link; /* all gif's are linked */
  86 };
  87
  88 #define gif_ro gifsc_gifscr.gifscr_ro
  89 #if INET6
  90 #define gif_ro6 gifsc_gifscr.gifscr_ro6
  91 #endif
  92
  93 #endif /* KERNEL_PRIVATE */
  94
  95 #define GIF_MTU         (1280)  /* Default MTU */
  96 #define GIF_MTU_MIN     (1280)  /* Minimum MTU */
  97 #define GIF_MTU_MAX     (8192)  /* Maximum MTU */
  98
  99 #ifdef KERNEL_PRIVATE
 100
 101 /* Prototypes */
 102 int gif_input(struct mbuf *, char*, struct ifnet *, u_long, int);
 103 int gif_output(struct ifnet *, struct mbuf *,
 104                     struct sockaddr *, struct rtentry *);
 105 int gif_ioctl(struct ifnet *, u_long, void*);
 106
 107 #endif /* KERNEL_PRIVATE */
 108 #endif /* _NET_IF_GIF_H_ */