/* * 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. * * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93 * $FreeBSD: src/sys/netinet/igmp_var.h,v 1.19 2002/03/19 21:25:46 alfred Exp $ */ #ifndef _NETINET_IGMP_VAR_H_ #define _NETINET_IGMP_VAR_H_ /* * Internet Group Management Protocol (IGMP), * implementation-specific definitions. * * Written by Steve Deering, Stanford, May 1988. * * MULTICAST Revision: 3.5.1.3 */ struct igmpstat { u_int igps_rcv_total; /* total IGMP messages received */ u_int igps_rcv_tooshort; /* received with too few bytes */ u_int igps_rcv_badsum; /* received with bad checksum */ u_int igps_rcv_queries; /* received membership queries */ u_int igps_rcv_badqueries; /* received invalid queries */ u_int igps_rcv_reports; /* received membership reports */ u_int igps_rcv_badreports; /* received invalid reports */ u_int igps_rcv_ourreports; /* received reports for our groups */ u_int igps_snd_reports; /* sent membership reports */ }; #ifdef _KERNEL #define IGMP_RANDOM_DELAY(X) (random() % (X) + 1) /* * States for IGMPv2's leave processing */ #define IGMP_OTHERMEMBER 0 #define IGMP_IREPORTEDLAST 1 /* * We must remember what version the subnet's querier is. * We conveniently use the IGMP message type for the proper * membership report to keep this state. */ #define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT #define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT /* * Revert to new router if we haven't heard from an old router in * this amount of time. */ #define IGMP_AGE_THRESHOLD 540 void igmp_init(void); void igmp_input(struct mbuf *, int); void igmp_joingroup(struct in_multi *); void igmp_leavegroup(struct in_multi *); void igmp_fasttimo(void); void igmp_slowtimo(void); SYSCTL_DECL(_net_inet_igmp); #endif /* * Names for IGMP sysctl objects */ #define IGMPCTL_STATS 1 /* statistics (read-only) */ #define IGMPCTL_MAXID 2 #define IGMPCTL_NAMES { \ { 0, 0 }, \ { "stats", CTLTYPE_STRUCT }, \ } #endif