igmp_var.h revision 55205
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1988 Stephen Deering. 31541Srgrimes * Copyright (c) 1992, 1993 41541Srgrimes * The Regents of the University of California. All rights reserved. 51541Srgrimes * 61541Srgrimes * This code is derived from software contributed to Berkeley by 71541Srgrimes * Stephen Deering of Stanford University. 81541Srgrimes * 91541Srgrimes * Redistribution and use in source and binary forms, with or without 101541Srgrimes * modification, are permitted provided that the following conditions 111541Srgrimes * are met: 121541Srgrimes * 1. Redistributions of source code must retain the above copyright 131541Srgrimes * notice, this list of conditions and the following disclaimer. 141541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 151541Srgrimes * notice, this list of conditions and the following disclaimer in the 161541Srgrimes * documentation and/or other materials provided with the distribution. 171541Srgrimes * 3. All advertising materials mentioning features or use of this software 181541Srgrimes * must display the following acknowledgement: 191541Srgrimes * This product includes software developed by the University of 201541Srgrimes * California, Berkeley and its contributors. 211541Srgrimes * 4. Neither the name of the University nor the names of its contributors 221541Srgrimes * may be used to endorse or promote products derived from this software 231541Srgrimes * without specific prior written permission. 241541Srgrimes * 251541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 261541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 271541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 281541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 301541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 311541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 321541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 331541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 341541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 351541Srgrimes * SUCH DAMAGE. 361541Srgrimes * 3744511Swollman * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93 3850477Speter * $FreeBSD: head/sys/netinet/igmp_var.h 55205 1999-12-29 04:46:21Z peter $ 391541Srgrimes */ 401541Srgrimes 412169Spaul#ifndef _NETINET_IGMP_VAR_H_ 422169Spaul#define _NETINET_IGMP_VAR_H_ 432169Spaul 441541Srgrimes/* 451541Srgrimes * Internet Group Management Protocol (IGMP), 461541Srgrimes * implementation-specific definitions. 471541Srgrimes * 481541Srgrimes * Written by Steve Deering, Stanford, May 1988. 491541Srgrimes * 5014622Sfenner * MULTICAST Revision: 3.5.1.3 511541Srgrimes */ 521541Srgrimes 531541Srgrimesstruct igmpstat { 549209Swollman u_int igps_rcv_total; /* total IGMP messages received */ 559209Swollman u_int igps_rcv_tooshort; /* received with too few bytes */ 569209Swollman u_int igps_rcv_badsum; /* received with bad checksum */ 579209Swollman u_int igps_rcv_queries; /* received membership queries */ 589209Swollman u_int igps_rcv_badqueries; /* received invalid queries */ 599209Swollman u_int igps_rcv_reports; /* received membership reports */ 609209Swollman u_int igps_rcv_badreports; /* received invalid reports */ 619209Swollman u_int igps_rcv_ourreports; /* received reports for our groups */ 629209Swollman u_int igps_snd_reports; /* sent membership reports */ 631541Srgrimes}; 641541Srgrimes 6555205Speter#ifdef _KERNEL 662531Swollman#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1) 671541Srgrimes 6814622Sfenner/* 6914622Sfenner * States for IGMPv2's leave processing 7014622Sfenner */ 7114622Sfenner#define IGMP_OTHERMEMBER 0 7214622Sfenner#define IGMP_IREPORTEDLAST 1 7314622Sfenner 7414622Sfenner/* 7514622Sfenner * We must remember what version the subnet's querier is. 7614622Sfenner * We conveniently use the IGMP message type for the proper 7714622Sfenner * membership report to keep this state. 7814622Sfenner */ 7914622Sfenner#define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT 8014622Sfenner#define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT 8114622Sfenner 8214622Sfenner/* 8314622Sfenner * Revert to new router if we haven't heard from an old router in 8414622Sfenner * this amount of time. 8514622Sfenner */ 8614622Sfenner#define IGMP_AGE_THRESHOLD 540 8714622Sfenner 882531Swollmanvoid igmp_init __P((void)); 8955009Sshinvoid igmp_input __P((struct mbuf *, int, int)); 901541Srgrimesvoid igmp_joingroup __P((struct in_multi *)); 911541Srgrimesvoid igmp_leavegroup __P((struct in_multi *)); 922531Swollmanvoid igmp_fasttimo __P((void)); 932531Swollmanvoid igmp_slowtimo __P((void)); 9444511Swollman 9544511SwollmanSYSCTL_DECL(_net_inet_igmp); 9644511Swollman 971541Srgrimes#endif 982169Spaul 996472Swollman/* 1006472Swollman * Names for IGMP sysctl objects 1016472Swollman */ 1026472Swollman#define IGMPCTL_STATS 1 /* statistics (read-only) */ 1036472Swollman#define IGMPCTL_MAXID 2 1046472Swollman 1056472Swollman#define IGMPCTL_NAMES { \ 1066472Swollman { 0, 0 }, \ 1076472Swollman { "stats", CTLTYPE_STRUCT }, \ 1086472Swollman} 1092169Spaul#endif 110