routed.tproj/interface.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright (c) 1983, 1993
  26  *      The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgment:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      @(#)defs.h      8.1 (Berkeley) 6/5/93
  57  */
  58
  59 /*
  60  * Routing table management daemon.
  61  */
  62
  63 /*
  64  * An ``interface'' is similar to an ifnet structure,
  65  * except it doesn't contain q'ing info, and it also
  66  * handles ``logical'' interfaces (remote gateways
  67  * that we want to keep polling even if they go down).
  68  * The list of interfaces which we maintain is used
  69  * in supplying the gratuitous routing table updates.
  70  */
  71 struct interface {
  72         struct  interface *int_next;
  73         struct  sockaddr int_addr;              /* address on this host */
  74         union {
  75                 struct  sockaddr intu_broadaddr;
  76                 struct  sockaddr intu_dstaddr;
  77         } int_intu;
  78 #define int_broadaddr   int_intu.intu_broadaddr /* broadcast address */
  79 #define int_dstaddr     int_intu.intu_dstaddr   /* other end of p-to-p link */
  80         int     int_metric;                     /* init's routing entry */
  81         int     int_flags;                      /* see below */
  82         /* START INTERNET SPECIFIC */
  83         u_long  int_net;                        /* network # */
  84         u_long  int_netmask;                    /* net mask for addr */
  85         u_long  int_subnet;                     /* subnet # */
  86         u_long  int_subnetmask;                 /* subnet mask for addr */
  87         /* END INTERNET SPECIFIC */
  88         struct  ifdebug int_input, int_output;  /* packet tracing stuff */
  89         int     int_ipackets;                   /* input packets received */
  90         int     int_opackets;                   /* output packets sent */
  91         char    *int_name;                      /* from kernel if structure */
  92         u_short int_transitions;                /* times gone up-down */
  93 };
  94
  95 /*
  96  * 0x1 to 0x10 are reused from the kernel's ifnet definitions,
  97  * the others agree with the RTS_ flags defined elsewhere.
  98  */
  99 #define IFF_UP          0x1             /* interface is up */
 100 #define IFF_BROADCAST   0x2             /* broadcast address valid */
 101 #define IFF_DEBUG       0x4             /* turn on debugging */
 102 #define IFF_LOOPBACK    0x8             /* software loopback net */
 103 #define IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
 104
 105 #define IFF_SUBNET      0x100000        /* interface on subnetted network */
 106 #define IFF_PASSIVE     0x200000        /* can't tell if up/down */
 107 #define IFF_INTERFACE   0x400000        /* hardware interface */
 108 #define IFF_REMOTE      0x800000        /* interface isn't on this machine */
 109
 110 struct  interface *if_ifwithaddr();
 111 struct  interface *if_ifwithdstaddr();
 112 struct  interface *if_ifwithnet();
 113 struct  interface *if_iflookup();