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1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23/*
24 * Copyright (c) 1988 Stephen Deering.
25 * Copyright (c) 1992, 1993
26 * The Regents of the University of California. All rights reserved.
27 *
28 * This code is derived from software contributed to Berkeley by
29 * Stephen Deering of Stanford University.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
33 * are met:
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
39 * 3. All advertising materials mentioning features or use of this software
40 * must display the following acknowledgement:
41 * This product includes software developed by the University of
42 * California, Berkeley and its contributors.
43 * 4. Neither the name of the University nor the names of its contributors
44 * may be used to endorse or promote products derived from this software
45 * without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * SUCH DAMAGE.
58 *
59 * @(#)igmp.h 8.1 (Berkeley) 6/10/93
60 * $FreeBSD: src/sys/netinet/igmp.h,v 1.10 1999/08/28 00:49:15 peter Exp $
61 */
62
63#ifndef _NETINET_IGMP_H_
64#define _NETINET_IGMP_H_
65#include <sys/appleapiopts.h>
66
67/*
68 * Internet Group Management Protocol (IGMP) definitions.
69 *
70 * Written by Steve Deering, Stanford, May 1988.
71 *
72 * MULTICAST Revision: 3.5.1.2
73 */
74
75/*
76 * IGMP packet format.
77 */
78struct igmp {
79 u_char igmp_type; /* version & type of IGMP message */
80 u_char igmp_code; /* subtype for routing msgs */
81 u_short igmp_cksum; /* IP-style checksum */
82 struct in_addr igmp_group; /* group address being reported */
83}; /* (zero for queries) */
84
85#define IGMP_MINLEN 8
86
87/*
88 * Message types, including version number.
89 */
90#define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */
91#define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */
92#define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */
93#define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */
94
95#define IGMP_DVMRP 0x13 /* DVMRP routing message */
96#define IGMP_PIM 0x14 /* PIM routing message */
97
98#define IGMP_MTRACE_RESP 0x1e /* traceroute resp.(to sender)*/
99#define IGMP_MTRACE 0x1f /* mcast traceroute messages */
100
101#define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */
102 /* query (in seconds) according */
103 /* to RFC1112 */
104
105
106#define IGMP_TIMER_SCALE 10 /* denotes that the igmp code field */
107 /* specifies time in 10th of seconds*/
108
109/*
110 * The following four defininitions are for backwards compatibility.
111 * They should be removed as soon as all applications are updated to
112 * use the new constant names.
113 */
114#define IGMP_HOST_MEMBERSHIP_QUERY IGMP_MEMBERSHIP_QUERY
115#define IGMP_HOST_MEMBERSHIP_REPORT IGMP_V1_MEMBERSHIP_REPORT
116#define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT
117#define IGMP_HOST_LEAVE_MESSAGE IGMP_V2_LEAVE_GROUP
118
119#endif /* _NETINET_IGMP_H_ */