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1 | /* Copyright (C) 1997-2022 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, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _NETINET_IGMP_H |
19 | #define _NETINET_IGMP_H 1 |
20 | |
21 | #include <sys/cdefs.h> |
22 | #include <sys/types.h> |
23 | |
24 | #ifdef __USE_MISC |
25 | |
26 | #include <netinet/in.h> |
27 | |
28 | __BEGIN_DECLS |
29 | |
30 | /* |
31 | * Copyright (c) 1988 Stephen Deering. |
32 | * Copyright (c) 1992, 1993 |
33 | * The Regents of the University of California. All rights reserved. |
34 | * |
35 | * This code is derived from software contributed to Berkeley by |
36 | * Stephen Deering of Stanford University. |
37 | * |
38 | * Redistribution and use in source and binary forms, with or without |
39 | * modification, are permitted provided that the following conditions |
40 | * are met: |
41 | * 1. Redistributions of source code must retain the above copyright |
42 | * notice, this list of conditions and the following disclaimer. |
43 | * 2. Redistributions in binary form must reproduce the above copyright |
44 | * notice, this list of conditions and the following disclaimer in the |
45 | * documentation and/or other materials provided with the distribution. |
46 | * 4. Neither the name of the University nor the names of its contributors |
47 | * may be used to endorse or promote products derived from this software |
48 | * without specific prior written permission. |
49 | * |
50 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
51 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
52 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
53 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
54 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
55 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
56 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
57 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
58 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
59 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
60 | * SUCH DAMAGE. |
61 | * |
62 | * @(#)igmp.h 8.1 (Berkeley) 6/10/93 |
63 | * $FreeBSD$ |
64 | */ |
65 | |
66 | struct igmp { |
67 | uint8_t igmp_type; /* IGMP type */ |
68 | uint8_t igmp_code; /* routing code */ |
69 | uint16_t igmp_cksum; /* checksum */ |
70 | struct in_addr igmp_group; /* group address */ |
71 | }; |
72 | |
73 | #define IGMP_MINLEN 8 |
74 | |
75 | /* |
76 | * Message types, including version number. |
77 | */ |
78 | #define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ |
79 | #define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ |
80 | #define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ |
81 | #define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */ |
82 | |
83 | #define IGMP_DVMRP 0x13 /* DVMRP routing message */ |
84 | #define IGMP_PIM 0x14 /* PIM routing message */ |
85 | #define IGMP_TRACE 0x15 |
86 | |
87 | #define IGMP_MTRACE_RESP 0x1e /* traceroute resp.(to sender)*/ |
88 | #define IGMP_MTRACE 0x1f /* mcast traceroute messages */ |
89 | #define IGMP_MRDISC_ADV 0x30 /* From RFC4286. */ |
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 |
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