usr.sbin/IPXrouted/interface.h

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Copyright (c) 1995 John Hay.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      @(#)interface.h 8.1 (Berkeley) 6/5/93
  36  *
  37  * $FreeBSD: src/usr.sbin/IPXrouted/interface.h,v 1.4 1999/08/28 01:15:02 peter Exp $
  38  * $DragonFly: src/usr.sbin/IPXrouted/interface.h,v 1.2 2003/06/17 04:29:52 dillon Exp $
  39  */
  40
  41 /*
  42  * Routing table management daemon.
  43  */
  44
  45 /*
  46  * An ``interface'' is similar to an ifnet structure,
  47  * except it doesn't contain q'ing info, and it also
  48  * handles ``logical'' interfaces (remote gateways
  49  * that we want to keep polling even if they go down).
  50  * The list of interfaces which we maintain is used
  51  * in supplying the gratuitous routing table updates.
  52  * We list only one address for  each interface, the AF_IPX one.
  53  */
  54 struct interface {
  55         struct  interface *int_next;
  56         struct  sockaddr int_addr;              /* address on this host */
  57         union {
  58                 struct  sockaddr intu_broadaddr;
  59                 struct  sockaddr intu_dstaddr;
  60         } int_intu;
  61 #define int_broadaddr   int_intu.intu_broadaddr /* broadcast address */
  62 #define int_dstaddr     int_intu.intu_dstaddr   /* other end of p-to-p link */
  63         int     int_metric;                     /* init's routing entry */
  64         int     int_flags;                      /* see below */
  65         struct  ifdebug int_input, int_output;  /* packet tracing stuff */
  66         int     int_ipackets;                   /* input packets received */
  67         int     int_opackets;                   /* output packets sent */
  68         char    *int_name;                      /* from kernel if structure */
  69         u_short int_transitions;                /* times gone up-down */
  70
  71         /* XXX IPX Specific entry */
  72         struct  sameq {
  73                 struct sameq *n;                /* q of other pt-to-pt links */
  74                 struct sameq *p;                /* with same net # */
  75         }       int_sq;
  76 };
  77
  78 /*
  79  * 0x1 to 0x10 are reused from the kernel's ifnet definitions,
  80  * the others agree with the RTS_ flags defined elsewhere.
  81  */
  82 #define IFF_UP          0x1             /* interface is up */
  83 #define IFF_BROADCAST   0x2             /* broadcast address valid */
  84 #define IFF_DEBUG       0x4             /* turn on debugging */
  85 #define IFF_ROUTE       0x8             /* routing entry installed */
  86 #define IFF_POINTOPOINT 0x10            /* interface is point-to-point link */
  87
  88 #define IFF_PASSIVE     0x200000        /* can't tell if up/down */
  89 #define IFF_INTERFACE   0x400000        /* hardware interface */
  90 #define IFF_REMOTE      0x800000        /* interface isn't on this machine */
  91
  92 struct  interface *if_ifwithaddr(struct sockaddr *);
  93 struct  interface *if_ifwithdstaddr(struct sockaddr *);
  94 struct  interface *if_ifwithnet(struct sockaddr *);
  95 struct  interface *if_iflookup(struct sockaddr *);
  96