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File name : igmp.h

Content :/* Copyright (C) 1997-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #ifndef _NETINET_IGMP_H #define _NETINET_IGMP_H 1 #include <sys/cdefs.h> #include <sys/types.h> #ifdef __USE_MISC #include <netinet/in.h> __BEGIN_DECLS /* * 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. * 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.h 8.1 (Berkeley) 6/10/93 * $FreeBSD$ */ struct igmp { uint8_t igmp_type; /* IGMP type */ uint8_t igmp_code; /* routing code */ uint16_t igmp_cksum; /* checksum */ struct in_addr igmp_group; /* group address */ }; #define IGMP_MINLEN 8 /* * Message types, including version number. */ #define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ #define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ #define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ #define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */ #define IGMP_DVMRP 0x13 /* DVMRP routing message */ #define IGMP_PIM 0x14 /* PIM routing message */ #define IGMP_TRACE 0x15 #define IGMP_MTRACE_RESP 0x1e /* traceroute resp.(to sender)*/ #define IGMP_MTRACE 0x1f /* mcast traceroute messages */ #define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ /* query (in seconds) according */ /* to RFC1112 */ #define IGMP_TIMER_SCALE 10 /* denotes that the igmp code field */ /* specifies time in 10th of seconds*/ /* * States for the IGMP v2 state table. */ #define IGMP_DELAYING_MEMBER 1 #define IGMP_IDLE_MEMBER 2 #define IGMP_LAZY_MEMBER 3 #define IGMP_SLEEPING_MEMBER 4 #define IGMP_AWAKENING_MEMBER 5 /* * States for IGMP router version cache. */ #define IGMP_v1_ROUTER 1 #define IGMP_v2_ROUTER 2 /* * The following four defininitions are for backwards compatibility. * They should be removed as soon as all applications are updated to * use the new constant names. */ #define IGMP_HOST_MEMBERSHIP_QUERY IGMP_MEMBERSHIP_QUERY #define IGMP_HOST_MEMBERSHIP_REPORT IGMP_V1_MEMBERSHIP_REPORT #define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT #define IGMP_HOST_LEAVE_MESSAGE IGMP_V2_LEAVE_GROUP __END_DECLS #endif #endif /* netinet/igmp.h */

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