1139823Simp/*-a 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 * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 3344511Swollman * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93 3450477Speter * $FreeBSD$ 351541Srgrimes */ 361541Srgrimes 372169Spaul#ifndef _NETINET_IGMP_VAR_H_ 382169Spaul#define _NETINET_IGMP_VAR_H_ 392169Spaul 401541Srgrimes/* 411541Srgrimes * Internet Group Management Protocol (IGMP), 421541Srgrimes * implementation-specific definitions. 431541Srgrimes * 441541Srgrimes * Written by Steve Deering, Stanford, May 1988. 451541Srgrimes * 4614622Sfenner * MULTICAST Revision: 3.5.1.3 471541Srgrimes */ 481541Srgrimes 49189592Sbms#ifndef BURN_BRIDGES 50189592Sbms/* 51189592Sbms * Pre-IGMPV3 igmpstat structure. 52189592Sbms */ 53189592Sbmsstruct oigmpstat { 54189592Sbms u_int igps_rcv_total; /* total IGMP messages received */ 55189592Sbms u_int igps_rcv_tooshort; /* received with too few bytes */ 56189592Sbms u_int igps_rcv_badsum; /* received with bad checksum */ 57189592Sbms u_int igps_rcv_queries; /* received membership queries */ 58189592Sbms u_int igps_rcv_badqueries; /* received invalid queries */ 59189592Sbms u_int igps_rcv_reports; /* received membership reports */ 60189592Sbms u_int igps_rcv_badreports; /* received invalid reports */ 61189592Sbms u_int igps_rcv_ourreports; /* received reports for our groups */ 62189592Sbms u_int igps_snd_reports; /* sent membership reports */ 63189592Sbms u_int igps_rcv_toolong; /* received with too many bytes */ 64189592Sbms}; 65189592Sbms#endif 66189592Sbms 67189592Sbms/* 68189592Sbms * IGMPv3 protocol statistics. 69189592Sbms */ 701541Srgrimesstruct igmpstat { 71189592Sbms /* 72189592Sbms * Structure header (to insulate ABI changes). 73189592Sbms */ 74189592Sbms uint32_t igps_version; /* version of this structure */ 75189592Sbms uint32_t igps_len; /* length of this structure */ 76189592Sbms /* 77189592Sbms * Message statistics. 78189592Sbms */ 79189592Sbms uint64_t igps_rcv_total; /* total IGMP messages received */ 80189592Sbms uint64_t igps_rcv_tooshort; /* received with too few bytes */ 81189592Sbms uint64_t igps_rcv_badttl; /* received with ttl other than 1 */ 82189592Sbms uint64_t igps_rcv_badsum; /* received with bad checksum */ 83189592Sbms /* 84189592Sbms * Query statistics. 85189592Sbms */ 86189592Sbms uint64_t igps_rcv_v1v2_queries; /* received IGMPv1/IGMPv2 queries */ 87189592Sbms uint64_t igps_rcv_v3_queries; /* received IGMPv3 queries */ 88189592Sbms uint64_t igps_rcv_badqueries; /* received invalid queries */ 89189592Sbms uint64_t igps_rcv_gen_queries; /* received general queries */ 90189592Sbms uint64_t igps_rcv_group_queries;/* received group queries */ 91189592Sbms uint64_t igps_rcv_gsr_queries; /* received group-source queries */ 92189592Sbms uint64_t igps_drop_gsr_queries; /* dropped group-source queries */ 93189592Sbms /* 94189592Sbms * Report statistics. 95189592Sbms */ 96189592Sbms uint64_t igps_rcv_reports; /* received membership reports */ 97189592Sbms uint64_t igps_rcv_badreports; /* received invalid reports */ 98189592Sbms uint64_t igps_rcv_ourreports; /* received reports for our groups */ 99189592Sbms uint64_t igps_rcv_nora; /* received w/o Router Alert option */ 100189592Sbms uint64_t igps_snd_reports; /* sent membership reports */ 101189592Sbms /* 102189592Sbms * Padding for future additions. 103189592Sbms */ 104189592Sbms uint64_t __igps_pad[4]; 1051541Srgrimes}; 106189592Sbms#define IGPS_VERSION_3 3 /* as of FreeBSD 8.x */ 107189592Sbms#define IGPS_VERSION3_LEN 168 1081541Srgrimes 109190965Srwatson#ifdef _KERNEL 110190965Srwatson#define IGMPSTAT_ADD(name, val) V_igmpstat.name += (val) 111190965Srwatson#define IGMPSTAT_INC(name) IGMPSTAT_ADD(name, 1) 112190965Srwatson#endif 113190965Srwatson 114189592Sbms#ifdef CTASSERT 115189592SbmsCTASSERT(sizeof(struct igmpstat) == 168); 116189592Sbms#endif 117189592Sbms 11855205Speter#ifdef _KERNEL 1192531Swollman#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1) 1201541Srgrimes 121189592Sbms#define IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */ 12214622Sfenner 12314622Sfenner/* 124189592Sbms * IGMP per-group states. 125170613Sbms */ 126189592Sbms#define IGMP_NOT_MEMBER 0 /* Can garbage collect in_multi */ 127189592Sbms#define IGMP_SILENT_MEMBER 1 /* Do not perform IGMP for group */ 128189592Sbms#define IGMP_REPORTING_MEMBER 2 /* IGMPv1/2/3 we are reporter */ 129189592Sbms#define IGMP_IDLE_MEMBER 3 /* IGMPv1/2 we reported last */ 130189592Sbms#define IGMP_LAZY_MEMBER 4 /* IGMPv1/2 other member reporting */ 131189592Sbms#define IGMP_SLEEPING_MEMBER 5 /* IGMPv1/2 start query response */ 132189592Sbms#define IGMP_AWAKENING_MEMBER 6 /* IGMPv1/2 group timer will start */ 133189592Sbms#define IGMP_G_QUERY_PENDING_MEMBER 7 /* IGMPv3 group query pending */ 134189592Sbms#define IGMP_SG_QUERY_PENDING_MEMBER 8 /* IGMPv3 source query pending */ 135189592Sbms#define IGMP_LEAVING_MEMBER 9 /* IGMPv3 dying gasp (pending last */ 136189592Sbms /* retransmission of INCLUDE {}) */ 137170613Sbms 138170613Sbms/* 139189592Sbms * IGMP version tag. 14014622Sfenner */ 141189592Sbms#define IGMP_VERSION_NONE 0 /* Invalid */ 142189592Sbms#define IGMP_VERSION_1 1 143189592Sbms#define IGMP_VERSION_2 2 144189592Sbms#define IGMP_VERSION_3 3 /* Default */ 14514622Sfenner 14614622Sfenner/* 147189592Sbms * IGMPv3 protocol control variables. 14814622Sfenner */ 149189592Sbms#define IGMP_RV_INIT 2 /* Robustness Variable */ 150189592Sbms#define IGMP_RV_MIN 1 151189592Sbms#define IGMP_RV_MAX 7 15214622Sfenner 153189592Sbms#define IGMP_QI_INIT 125 /* Query Interval (s) */ 154189592Sbms#define IGMP_QI_MIN 1 155189592Sbms#define IGMP_QI_MAX 255 156189592Sbms 157189592Sbms#define IGMP_QRI_INIT 10 /* Query Response Interval (s) */ 158189592Sbms#define IGMP_QRI_MIN 1 159189592Sbms#define IGMP_QRI_MAX 255 160189592Sbms 161189592Sbms#define IGMP_URI_INIT 3 /* Unsolicited Report Interval (s) */ 162189592Sbms#define IGMP_URI_MIN 0 163189592Sbms#define IGMP_URI_MAX 10 164189592Sbms 165189592Sbms#define IGMP_MAX_G_GS_PACKETS 8 /* # of packets to answer G/GS */ 166189592Sbms#define IGMP_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */ 167189592Sbms#define IGMP_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */ 168189592Sbms#define IGMP_MAX_RESPONSE_BURST 4 /* # of responses to send at once */ 169189592Sbms#define IGMP_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */ 170189592Sbms 171170613Sbms/* 172189592Sbms * IGMP-specific mbuf flags. 173170613Sbms */ 174189592Sbms#define M_IGMPV2 M_PROTO1 /* Packet is IGMPv2 */ 175189592Sbms#define M_IGMPV3_HDR M_PROTO2 /* Packet has IGMPv3 headers */ 176189592Sbms#define M_GROUPREC M_PROTO3 /* mbuf chain is a group record */ 177189592Sbms#define M_IGMP_LOOP M_PROTO4 /* transmit on loif, not real ifp */ 178170613Sbms 179170613Sbms/* 180189592Sbms * Default amount of leading space for IGMPv3 to allocate at the 181189592Sbms * beginning of its mbuf packet chains, to avoid fragmentation and 182189592Sbms * unnecessary allocation of leading mbufs. 183170613Sbms */ 184189592Sbms#define RAOPT_LEN 4 /* Length of IP Router Alert option */ 185189592Sbms#define IGMP_LEADINGSPACE \ 186189592Sbms (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report)) 187170613Sbms 188170613Sbms/* 189189592Sbms * Subsystem lock macros. 190189592Sbms * The IGMP lock is only taken with IGMP. Currently it is system-wide. 191189592Sbms * VIMAGE: The lock could be pushed to per-VIMAGE granularity in future. 192170613Sbms */ 193189592Sbms#define IGMP_LOCK_INIT() mtx_init(&igmp_mtx, "igmp_mtx", NULL, MTX_DEF) 194189592Sbms#define IGMP_LOCK_DESTROY() mtx_destroy(&igmp_mtx) 195189592Sbms#define IGMP_LOCK() mtx_lock(&igmp_mtx) 196189592Sbms#define IGMP_LOCK_ASSERT() mtx_assert(&igmp_mtx, MA_OWNED) 197189592Sbms#define IGMP_UNLOCK() mtx_unlock(&igmp_mtx) 198189592Sbms#define IGMP_UNLOCK_ASSERT() mtx_assert(&igmp_mtx, MA_NOTOWNED) 199170613Sbms 200189592Sbmsstruct igmp_ifinfo; 201170613Sbms 202189592Sbmsint igmp_change_state(struct in_multi *); 203189592Sbmsvoid igmp_fasttimo(void); 204189592Sbmsstruct igmp_ifinfo * 205189592Sbms igmp_domifattach(struct ifnet *); 206189592Sbmsvoid igmp_domifdetach(struct ifnet *); 207189592Sbmsvoid igmp_ifdetach(struct ifnet *); 20892723Salfredvoid igmp_input(struct mbuf *, int); 20992723Salfredvoid igmp_slowtimo(void); 21044511Swollman 21144511SwollmanSYSCTL_DECL(_net_inet_igmp); 21244511Swollman 213189592Sbms#endif /* _KERNEL */ 2142169Spaul 2156472Swollman/* 2166472Swollman * Names for IGMP sysctl objects 2176472Swollman */ 2186472Swollman#define IGMPCTL_STATS 1 /* statistics (read-only) */ 2196472Swollman#define IGMPCTL_MAXID 2 2206472Swollman 2216472Swollman#define IGMPCTL_NAMES { \ 2226472Swollman { 0, 0 }, \ 223170613Sbms { "stats", CTLTYPE_STRUCT } \ 2246472Swollman} 2252169Spaul#endif 226