1 /* $NetBSD: rsrr_var.h,v 1.3 2003/03/05 21:05:40 wiz Exp $ */ 2 3 /* 4 * Copyright (c) 1998-2001. 5 * The University of Southern California/Information Sciences Institute. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* RSRR things that are only needed by mrouted. */ 34 35 /* Cache of Route Query messages, distinguished by source, 36 * destination, and client addresses. Cache is flushed by RSRR client 37 * -- it sends notification when an unwanted Route Reply is received. 38 * Since this only happens during route changes, it is more likely 39 * that the cache will be flushed when the kernel table entry is 40 * deleted. */ 41 struct rsrr_cache { 42 struct rsrr_rq route_query; /* Cached Route Query */ 43 struct sockaddr_un client_addr; /* Client address */ 44 int client_length; /* Length of client */ 45 struct rsrr_cache *next; /* next cache item */ 46 }; 47 48