usr.sbin/mrouted/rsrr_var.h

   1 /*
   2  * Copyright (c) 1993 by the University of Southern California
   3  * All rights reserved.
   4  *
   5  * Permission to use, copy, modify, and distribute this software and its
   6  * documentation in source and binary forms for non-commercial purposes
   7  * and without fee is hereby granted, provided that the above copyright
   8  * notice appear in all copies and that both the copyright notice and
   9  * this permission notice appear in supporting documentation. and that
  10  * any documentation, advertising materials, and other materials related
  11  * to such distribution and use acknowledge that the software was
  12  * developed by the University of Southern California, Information
  13  * Sciences Institute.  The name of the University may not be used to
  14  * endorse or promote products derived from this software without
  15  * specific prior written permission.
  16  *
  17  * THE UNIVERSITY OF SOUTHERN CALIFORNIA makes no representations about
  18  * the suitability of this software for any purpose.  THIS SOFTWARE IS
  19  * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
  20  * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  22  *
  23  * Other copyrights might apply to parts of this software and are so
  24  * noted when applicable.
  25  */
  26
  27 /* RSRR things that are only needed by mrouted. */
  28
  29 /* Cache of Route Query messages, distinguished by source,
  30  * destination, and client addresses.  Cache is flushed by RSRR client
  31  * -- it sends notification when an unwanted Route Reply is received.
  32  * Since this only happens during route changes, it is more likely
  33  * that the cache will be flushed when the kernel table entry is
  34  * deleted.  */
  35 struct rsrr_cache {
  36     struct rsrr_rq route_query;         /* Cached Route Query */
  37     struct sockaddr_un client_addr;     /* Client address */
  38     int client_length;                  /* Length of client */
  39     struct rsrr_cache *next;            /* next cache item */
  40 };
  41