NetBSD/usr.sbin/mrouted/rsrr_var.h

48 lines
2.3 KiB
C

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