1 | /* |
2 | * Copyright (c) 2010 Apple, Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_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. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * Copyright (c) 1988 Stephen Deering. |
30 | * Copyright (c) 1992, 1993 |
31 | * The Regents of the University of California. All rights reserved. |
32 | * |
33 | * This code is derived from software contributed to Berkeley by |
34 | * Stephen Deering of Stanford University. |
35 | * |
36 | * Redistribution and use in source and binary forms, with or without |
37 | * modification, are permitted provided that the following conditions |
38 | * are met: |
39 | * 1. Redistributions of source code must retain the above copyright |
40 | * notice, this list of conditions and the following disclaimer. |
41 | * 2. Redistributions in binary form must reproduce the above copyright |
42 | * notice, this list of conditions and the following disclaimer in the |
43 | * documentation and/or other materials provided with the distribution. |
44 | * 3. All advertising materials mentioning features or use of this software |
45 | * must display the following acknowledgement: |
46 | * This product includes software developed by the University of |
47 | * California, Berkeley and its contributors. |
48 | * 4. Neither the name of the University nor the names of its contributors |
49 | * may be used to endorse or promote products derived from this software |
50 | * without specific prior written permission. |
51 | * |
52 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
53 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
54 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
55 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
56 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
57 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
58 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
59 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
60 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
61 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
62 | * SUCH DAMAGE. |
63 | * |
64 | * @(#)igmp.h 8.1 (Berkeley) 6/10/93 |
65 | * $FreeBSD: src/sys/netinet/igmp.h,v 1.10 1999/08/28 00:49:15 peter Exp $ |
66 | */ |
67 | |
68 | #ifndef _NETINET_IGMP_H_ |
69 | #define _NETINET_IGMP_H_ |
70 | #include <sys/appleapiopts.h> |
71 | |
72 | #include <netinet/in.h> |
73 | #include <sys/types.h> |
74 | |
75 | /* |
76 | * Internet Group Management Protocol (IGMP) definitions. |
77 | * |
78 | * Written by Steve Deering, Stanford, May 1988. |
79 | * |
80 | * MULTICAST Revision: 3.5.1.2 |
81 | */ |
82 | |
83 | /* Minimum length of any IGMP protocol message. */ |
84 | #define IGMP_MINLEN 8 |
85 | |
86 | /* |
87 | * IGMPv1/v2 query and host report format. |
88 | */ |
89 | struct igmp { |
90 | u_char igmp_type; /* version & type of IGMP message */ |
91 | u_char igmp_code; /* subtype for routing msgs */ |
92 | u_short igmp_cksum; /* IP-style checksum */ |
93 | struct in_addr igmp_group; /* group address being reported */ |
94 | }; /* (zero for queries) */ |
95 | |
96 | /* |
97 | * IGMP v3 query format. |
98 | */ |
99 | struct igmpv3 { |
100 | u_char igmp_type; /* version & type of IGMP message */ |
101 | u_char igmp_code; /* subtype for routing msgs */ |
102 | u_short igmp_cksum; /* IP-style checksum */ |
103 | struct in_addr igmp_group; /* group address being reported */ |
104 | /* (zero for queries) */ |
105 | u_char igmp_misc; /* reserved/suppress/robustness */ |
106 | u_char igmp_qqi; /* querier's query interval */ |
107 | u_short igmp_numsrc; /* number of sources */ |
108 | /*struct in_addr igmp_sources[1];*/ /* source addresses */ |
109 | }; |
110 | #define IGMP_V3_QUERY_MINLEN 12 |
111 | #define IGMP_V3_QUERY_MAX_SRCS 366 /* From RFC 3376, section 4.1.8 */ |
112 | #define IGMP_EXP(x) (((x) >> 4) & 0x07) |
113 | #define IGMP_MANT(x) ((x) & 0x0f) |
114 | #define IGMP_QRESV(x) (((x) >> 4) & 0x0f) |
115 | #define IGMP_SFLAG(x) (((x) >> 3) & 0x01) |
116 | #define IGMP_QRV(x) ((x) & 0x07) |
117 | |
118 | struct igmp_grouprec { |
119 | u_char ig_type; /* record type */ |
120 | u_char ig_datalen; /* length of auxiliary data */ |
121 | u_short ig_numsrc; /* number of sources */ |
122 | struct in_addr ig_group; /* group address being reported */ |
123 | /*struct in_addr ig_sources[1];*/ /* source addresses */ |
124 | }; |
125 | #define IGMP_GRPREC_HDRLEN 8 |
126 | |
127 | /* |
128 | * IGMPv3 host membership report header. |
129 | */ |
130 | struct igmp_report { |
131 | u_char ir_type; /* IGMP_v3_HOST_MEMBERSHIP_REPORT */ |
132 | u_char ir_rsv1; /* must be zero */ |
133 | u_short ir_cksum; /* checksum */ |
134 | u_short ir_rsv2; /* must be zero */ |
135 | u_short ir_numgrps; /* number of group records */ |
136 | /*struct igmp_grouprec ir_groups[1];*/ /* group records */ |
137 | }; |
138 | #define IGMP_V3_REPORT_MINLEN 8 |
139 | #define IGMP_V3_REPORT_MAXRECS 65535 |
140 | |
141 | /* |
142 | * Message types, including version number. |
143 | */ |
144 | #define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* membership query */ |
145 | #define IGMP_v1_HOST_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ |
146 | #define IGMP_DVMRP 0x13 /* DVMRP routing message */ |
147 | #define IGMP_PIM 0x14 /* PIMv1 message (historic) */ |
148 | #define IGMP_v2_HOST_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ |
149 | #define IGMP_HOST_LEAVE_MESSAGE 0x17 /* Leave-group message */ |
150 | #define IGMP_MTRACE_REPLY 0x1e /* mtrace(8) reply */ |
151 | #define IGMP_MTRACE_QUERY 0x1f /* mtrace(8) probe */ |
152 | #define IGMP_v3_HOST_MEMBERSHIP_REPORT 0x22 /* Ver. 3 membership report */ |
153 | |
154 | /* |
155 | * IGMPv3 report modes. |
156 | */ |
157 | #define IGMP_DO_NOTHING 0 /* don't send a record */ |
158 | #define IGMP_MODE_IS_INCLUDE 1 /* MODE_IN */ |
159 | #define IGMP_MODE_IS_EXCLUDE 2 /* MODE_EX */ |
160 | #define IGMP_CHANGE_TO_INCLUDE_MODE 3 /* TO_IN */ |
161 | #define IGMP_CHANGE_TO_EXCLUDE_MODE 4 /* TO_EX */ |
162 | #define IGMP_ALLOW_NEW_SOURCES 5 /* ALLOW_NEW */ |
163 | #define IGMP_BLOCK_OLD_SOURCES 6 /* BLOCK_OLD */ |
164 | |
165 | /* |
166 | * IGMPv3 query types. |
167 | */ |
168 | #define IGMP_V3_GENERAL_QUERY 1 |
169 | #define IGMP_V3_GROUP_QUERY 2 |
170 | #define IGMP_V3_GROUP_SOURCE_QUERY 3 |
171 | |
172 | /* |
173 | * Maximum report interval for IGMP v1/v2 host membership reports [RFC 1112] |
174 | */ |
175 | #define IGMP_V1V2_MAX_RI 10 |
176 | #define IGMP_MAX_HOST_REPORT_DELAY IGMP_V1V2_MAX_RI |
177 | |
178 | /* |
179 | * IGMP_TIMER_SCALE denotes that the igmp code field specifies |
180 | * time in tenths of a second. |
181 | */ |
182 | #define IGMP_TIMER_SCALE 10 |
183 | |
184 | #endif /* _NETINET_IGMP_H_ */ |
185 | |