routed.tproj/interface.h

   1 /*
   2  * Copyright (c) 1999 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 /*
  24  * Copyright (c) 1983, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgment:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)defs.h      8.1 (Berkeley) 6/5/93
  56  */
  57
  58 /*
  59  * Routing table management daemon.
  60  */
  61
  62 /*
  63  * An ``interface'' is similar to an ifnet structure,
  64  * except it doesn't contain q'ing info, and it also
  65  * handles ``logical'' interfaces (remote gateways
  66  * that we want to keep polling even if they go down).
  67  * The list of interfaces which we maintain is used
  68  * in supplying the gratuitous routing table updates.
  69  */
  70 struct interface {
  71         struct  interface *int_next;
  72         struct  sockaddr int_addr;              /* address on this host */
  73         union {
  74                 struct  sockaddr intu_broadaddr;
  75                 struct  sockaddr intu_dstaddr;
  76         } int_intu;
  77 #define int_broadaddr   int_intu.intu_broadaddr /* broadcast address */
  78 #define int_dstaddr     int_intu.intu_dstaddr   /* other end of p-to-p link */
  79         int     int_metric;                     /* init's routing entry */
  80         int     int_flags;                      /* see below */
  81         /* START INTERNET SPECIFIC */
  82         u_long  int_net;                        /* network # */
  83         u_long  int_netmask;                    /* net mask for addr */
  84         u_long  int_subnet;                     /* subnet # */
  85         u_long  int_subnetmask;                 /* subnet mask for addr */
  86         /* END INTERNET SPECIFIC */
  87         struct  ifdebug int_input, int_output;  /* packet tracing stuff */
  88         int     int_ipackets;                   /* input packets received */
  89         int     int_opackets;                   /* output packets sent */
  90         char    *int_name;                      /* from kernel if structure */
  91         u_short int_transitions;                /* times gone up-down */
  92 };
  93
  94 /*
  95  * 0x1 to 0x10 are reused from the kernel's ifnet definitions,
  96  * the others agree with the RTS_ flags defined elsewhere.
  97  */
  98 #define IFF_UP          0x1             /* interface is up */
  99 #define IFF_BROADCAST   0x2             /* broadcast address valid */
 100 #define IFF_DEBUG       0x4             /* turn on debugging */
 101 #define IFF_LOOPBACK    0x8             /* software loopback net */
 102 #define IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
 103
 104 #define IFF_SUBNET      0x100000        /* interface on subnetted network */
 105 #define IFF_PASSIVE     0x200000        /* can't tell if up/down */
 106 #define IFF_INTERFACE   0x400000        /* hardware interface */
 107 #define IFF_REMOTE      0x800000        /* interface isn't on this machine */
 108
 109 struct  interface *if_ifwithaddr();
 110 struct  interface *if_ifwithdstaddr();
 111 struct  interface *if_ifwithnet();
 112 struct  interface *if_iflookup();