1 /* Copyright (C) 1997, 1999, 2003 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 #ifndef _NETINET_IGMP_H 20 #define _NETINET_IGMP_H 1 21 22 #include <sys/cdefs.h> 23 #include <sys/types.h> 24 25 #ifdef __USE_BSD 26 27 #include <netinet/in.h> 28 29 __BEGIN_DECLS 30 31 /* 32 * Copyright (c) 1988 Stephen Deering. 33 * Copyright (c) 1992, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * This code is derived from software contributed to Berkeley by 37 * Stephen Deering of Stanford University. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 4. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 * 63 * @(#)igmp.h 8.1 (Berkeley) 6/10/93 64 * $FreeBSD$ 65 */ 66 67 struct igmp { 68 u_int8_t igmp_type; /* IGMP type */ 69 u_int8_t igmp_code; /* routing code */ 70 u_int16_t igmp_cksum; /* checksum */ 71 struct in_addr igmp_group; /* group address */ 72 }; 73 74 #define IGMP_MINLEN 8 75 76 /* 77 * Message types, including version number. 78 */ 79 #define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ 80 #define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ 81 #define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ 82 #define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */ 83 84 #define IGMP_DVMRP 0x13 /* DVMRP routing message */ 85 #define IGMP_PIM 0x14 /* PIM routing message */ 86 #define IGMP_TRACE 0x15 87 88 #define IGMP_MTRACE_RESP 0x1e /* traceroute resp.(to sender)*/ 89 #define IGMP_MTRACE 0x1f /* mcast traceroute messages */ 90 91 #define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ 92 /* query (in seconds) according */ 93 /* to RFC1112 */ 94 #define IGMP_TIMER_SCALE 10 /* denotes that the igmp code field */ 95 /* specifies time in 10th of seconds*/ 96 97 /* 98 * States for the IGMP v2 state table. 99 */ 100 #define IGMP_DELAYING_MEMBER 1 101 #define IGMP_IDLE_MEMBER 2 102 #define IGMP_LAZY_MEMBER 3 103 #define IGMP_SLEEPING_MEMBER 4 104 #define IGMP_AWAKENING_MEMBER 5 105 106 /* 107 * States for IGMP router version cache. 108 */ 109 #define IGMP_v1_ROUTER 1 110 #define IGMP_v2_ROUTER 2 111 112 /* 113 * The following four defininitions are for backwards compatibility. 114 * They should be removed as soon as all applications are updated to 115 * use the new constant names. 116 */ 117 #define IGMP_HOST_MEMBERSHIP_QUERY IGMP_MEMBERSHIP_QUERY 118 #define IGMP_HOST_MEMBERSHIP_REPORT IGMP_V1_MEMBERSHIP_REPORT 119 #define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT 120 #define IGMP_HOST_LEAVE_MESSAGE IGMP_V2_LEAVE_GROUP 121 122 __END_DECLS 123 124 #endif 125 126 #endif /* netinet/igmp.h */ 127
