--- /dev/null
+/* 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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