bsd/net/if_gif.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*      $KAME: if_gif.h,v 1.7 2000/02/22 14:01:46 itojun Exp $  */
  31
  32 /*
  33  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. Neither the name of the project nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  */
  60
  61 /*
  62  * if_gif.h
  63  */
  64
  65 #ifndef _NET_IF_GIF_H_
  66 #define _NET_IF_GIF_H_
  67 #include <sys/appleapiopts.h>
  68
  69 #include <netinet/in.h>
  70 /* xxx sigh, why route have struct route instead of pointer? */
  71
  72 #ifdef KERNEL_PRIVATE
  73 struct encaptab;
  74
  75 struct gif_softc {
  76         struct ifnet    gif_if;    /* common area - must be at the top */
  77         struct sockaddr *gif_psrc; /* Physical src addr */
  78         struct sockaddr *gif_pdst; /* Physical dst addr */
  79 #ifdef __APPLE__
  80         u_long  gif_proto; /* dlil protocol attached */
  81 #endif
  82         union {
  83                 struct route  gifscr_ro;    /* xxx */
  84 #if INET6
  85                 struct route_in6 gifscr_ro6; /* xxx */
  86 #endif
  87         } gifsc_gifscr;
  88         int             gif_flags;
  89         int             gif_called;
  90         const struct encaptab *encap_cookie4;
  91         const struct encaptab *encap_cookie6;
  92         TAILQ_ENTRY(gif_softc) gif_link; /* all gif's are linked */
  93 };
  94
  95 #define gif_ro gifsc_gifscr.gifscr_ro
  96 #if INET6
  97 #define gif_ro6 gifsc_gifscr.gifscr_ro6
  98 #endif
  99
 100 #endif /* KERNEL_PRIVATE */
 101
 102 #define GIF_MTU         (1280)  /* Default MTU */
 103 #define GIF_MTU_MIN     (1280)  /* Minimum MTU */
 104 #define GIF_MTU_MAX     (8192)  /* Maximum MTU */
 105
 106 #ifdef KERNEL_PRIVATE
 107
 108 /* Prototypes */
 109 int gif_input(struct mbuf *, char*, struct ifnet *, u_long, int);
 110 int gif_output(struct ifnet *, struct mbuf *,
 111                     struct sockaddr *, struct rtentry *);
 112 int gif_ioctl(struct ifnet *, u_long, void*);
 113
 114 #endif /* KERNEL_PRIVATE */
 115 #endif /* _NET_IF_GIF_H_ */