IGMP_VAR.H
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- /*
- * Copyright (c) 1988 Stephen Deering.
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Stephen Deering of Stanford University.
- *
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
- *
- * @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
- */
- /*
- * Internet Group Management Protocol (IGMP),
- * implementation-specific definitions.
- *
- * Written by Steve Deering, Stanford, May 1988.
- *
- * MULTICAST 1.1
- */
- struct igmpstat {
- u_long igps_rcv_total; /* total IGMP messages received */
- u_long igps_rcv_tooshort; /* received with too few bytes */
- u_long igps_rcv_badsum; /* received with bad checksum */
- u_long igps_rcv_queries; /* received membership queries */
- u_long igps_rcv_badqueries; /* received invalid queries */
- u_long igps_rcv_reports; /* received membership reports */
- u_long igps_rcv_badreports; /* received invalid reports */
- u_long igps_rcv_ourreports; /* received reports for our groups */
- u_long igps_snd_reports; /* sent membership reports */
- };
- #ifdef KERNEL
- struct igmpstat igmpstat;
- /*
- * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
- * DELAY * countdown frequency). We generate a "random" number by adding
- * the total number of IP packets received, our primary IP address, and the
- * multicast address being timed-out. The 4.3 random() routine really
- * ought to be available in the kernel!
- */
- #define IGMP_RANDOM_DELAY(multiaddr)
- /* struct in_addr multiaddr; */
- ( (ipstat.ips_total +
- ntohl(IA_SIN(in_ifaddr)->sin_addr.s_addr) +
- ntohl((multiaddr).s_addr)
- )
- % (IGMP_MAX_HOST_REPORT_DELAY * PR_FASTHZ) + 1
- )
- void igmp_init __P(());
- void igmp_input __P((struct mbuf *, int));
- void igmp_joingroup __P((struct in_multi *));
- void igmp_leavegroup __P((struct in_multi *));
- void igmp_fasttimo __P(());
- #endif