1/*-a
2 * Copyright (c) 1988 Stephen Deering.
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Stephen Deering of Stanford University.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
| 1/*-a
2 * Copyright (c) 1988 Stephen Deering.
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Stephen Deering of Stanford University.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
|
34 * $FreeBSD: head/sys/netinet/igmp_var.h 262489 2014-02-25 18:44:33Z jhb $
| 34 * $FreeBSD: head/sys/netinet/igmp_var.h 269699 2014-08-08 01:57:15Z kevlo $
|
35 */
36
37#ifndef _NETINET_IGMP_VAR_H_
38#define _NETINET_IGMP_VAR_H_
39
40/*
41 * Internet Group Management Protocol (IGMP),
42 * implementation-specific definitions.
43 *
44 * Written by Steve Deering, Stanford, May 1988.
45 *
46 * MULTICAST Revision: 3.5.1.3
47 */
48
49#ifndef BURN_BRIDGES
50/*
51 * Pre-IGMPV3 igmpstat structure.
52 */
53struct oigmpstat {
54 u_int igps_rcv_total; /* total IGMP messages received */
55 u_int igps_rcv_tooshort; /* received with too few bytes */
56 u_int igps_rcv_badsum; /* received with bad checksum */
57 u_int igps_rcv_queries; /* received membership queries */
58 u_int igps_rcv_badqueries; /* received invalid queries */
59 u_int igps_rcv_reports; /* received membership reports */
60 u_int igps_rcv_badreports; /* received invalid reports */
61 u_int igps_rcv_ourreports; /* received reports for our groups */
62 u_int igps_snd_reports; /* sent membership reports */
63 u_int igps_rcv_toolong; /* received with too many bytes */
64};
65#endif
66
67/*
68 * IGMPv3 protocol statistics.
69 */
70struct igmpstat {
71 /*
72 * Structure header (to insulate ABI changes).
73 */
74 uint32_t igps_version; /* version of this structure */
75 uint32_t igps_len; /* length of this structure */
76 /*
77 * Message statistics.
78 */
79 uint64_t igps_rcv_total; /* total IGMP messages received */
80 uint64_t igps_rcv_tooshort; /* received with too few bytes */
81 uint64_t igps_rcv_badttl; /* received with ttl other than 1 */
82 uint64_t igps_rcv_badsum; /* received with bad checksum */
83 /*
84 * Query statistics.
85 */
86 uint64_t igps_rcv_v1v2_queries; /* received IGMPv1/IGMPv2 queries */
87 uint64_t igps_rcv_v3_queries; /* received IGMPv3 queries */
88 uint64_t igps_rcv_badqueries; /* received invalid queries */
89 uint64_t igps_rcv_gen_queries; /* received general queries */
90 uint64_t igps_rcv_group_queries;/* received group queries */
91 uint64_t igps_rcv_gsr_queries; /* received group-source queries */
92 uint64_t igps_drop_gsr_queries; /* dropped group-source queries */
93 /*
94 * Report statistics.
95 */
96 uint64_t igps_rcv_reports; /* received membership reports */
97 uint64_t igps_rcv_badreports; /* received invalid reports */
98 uint64_t igps_rcv_ourreports; /* received reports for our groups */
99 uint64_t igps_rcv_nora; /* received w/o Router Alert option */
100 uint64_t igps_snd_reports; /* sent membership reports */
101 /*
102 * Padding for future additions.
103 */
104 uint64_t __igps_pad[4];
105};
106#define IGPS_VERSION_3 3 /* as of FreeBSD 8.x */
107#define IGPS_VERSION3_LEN 168
108
109#ifdef _KERNEL
110#define IGMPSTAT_ADD(name, val) V_igmpstat.name += (val)
111#define IGMPSTAT_INC(name) IGMPSTAT_ADD(name, 1)
112#endif
113
114#ifdef CTASSERT
115CTASSERT(sizeof(struct igmpstat) == 168);
116#endif
117
118#ifdef _KERNEL
119#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
120
121#define IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */
122
123/*
124 * IGMP per-group states.
125 */
126#define IGMP_NOT_MEMBER 0 /* Can garbage collect in_multi */
127#define IGMP_SILENT_MEMBER 1 /* Do not perform IGMP for group */
128#define IGMP_REPORTING_MEMBER 2 /* IGMPv1/2/3 we are reporter */
129#define IGMP_IDLE_MEMBER 3 /* IGMPv1/2 we reported last */
130#define IGMP_LAZY_MEMBER 4 /* IGMPv1/2 other member reporting */
131#define IGMP_SLEEPING_MEMBER 5 /* IGMPv1/2 start query response */
132#define IGMP_AWAKENING_MEMBER 6 /* IGMPv1/2 group timer will start */
133#define IGMP_G_QUERY_PENDING_MEMBER 7 /* IGMPv3 group query pending */
134#define IGMP_SG_QUERY_PENDING_MEMBER 8 /* IGMPv3 source query pending */
135#define IGMP_LEAVING_MEMBER 9 /* IGMPv3 dying gasp (pending last */
136 /* retransmission of INCLUDE {}) */
137
138/*
139 * IGMP version tag.
140 */
141#define IGMP_VERSION_NONE 0 /* Invalid */
142#define IGMP_VERSION_1 1
143#define IGMP_VERSION_2 2
144#define IGMP_VERSION_3 3 /* Default */
145
146/*
147 * IGMPv3 protocol control variables.
148 */
149#define IGMP_RV_INIT 2 /* Robustness Variable */
150#define IGMP_RV_MIN 1
151#define IGMP_RV_MAX 7
152
153#define IGMP_QI_INIT 125 /* Query Interval (s) */
154#define IGMP_QI_MIN 1
155#define IGMP_QI_MAX 255
156
157#define IGMP_QRI_INIT 10 /* Query Response Interval (s) */
158#define IGMP_QRI_MIN 1
159#define IGMP_QRI_MAX 255
160
161#define IGMP_URI_INIT 3 /* Unsolicited Report Interval (s) */
162#define IGMP_URI_MIN 0
163#define IGMP_URI_MAX 10
164
165#define IGMP_MAX_G_GS_PACKETS 8 /* # of packets to answer G/GS */
166#define IGMP_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */
167#define IGMP_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */
168#define IGMP_MAX_RESPONSE_BURST 4 /* # of responses to send at once */
169#define IGMP_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */
170
171/*
172 * IGMP-specific mbuf flags.
173 */
174#define M_IGMPV2 M_PROTO1 /* Packet is IGMPv2 */
175#define M_IGMPV3_HDR M_PROTO2 /* Packet has IGMPv3 headers */
176#define M_GROUPREC M_PROTO3 /* mbuf chain is a group record */
177#define M_IGMP_LOOP M_PROTO4 /* transmit on loif, not real ifp */
178
179/*
180 * Default amount of leading space for IGMPv3 to allocate at the
181 * beginning of its mbuf packet chains, to avoid fragmentation and
182 * unnecessary allocation of leading mbufs.
183 */
184#define RAOPT_LEN 4 /* Length of IP Router Alert option */
185#define IGMP_LEADINGSPACE \
186 (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report))
187
188/*
189 * Subsystem lock macros.
190 * The IGMP lock is only taken with IGMP. Currently it is system-wide.
191 * VIMAGE: The lock could be pushed to per-VIMAGE granularity in future.
192 */
193#define IGMP_LOCK_INIT() mtx_init(&igmp_mtx, "igmp_mtx", NULL, MTX_DEF)
194#define IGMP_LOCK_DESTROY() mtx_destroy(&igmp_mtx)
195#define IGMP_LOCK() mtx_lock(&igmp_mtx)
196#define IGMP_LOCK_ASSERT() mtx_assert(&igmp_mtx, MA_OWNED)
197#define IGMP_UNLOCK() mtx_unlock(&igmp_mtx)
198#define IGMP_UNLOCK_ASSERT() mtx_assert(&igmp_mtx, MA_NOTOWNED)
199
200struct igmp_ifinfo;
201
202int igmp_change_state(struct in_multi *);
203void igmp_fasttimo(void);
204struct igmp_ifinfo *
205 igmp_domifattach(struct ifnet *);
206void igmp_domifdetach(struct ifnet *);
207void igmp_ifdetach(struct ifnet *);
| 35 */
36
37#ifndef _NETINET_IGMP_VAR_H_
38#define _NETINET_IGMP_VAR_H_
39
40/*
41 * Internet Group Management Protocol (IGMP),
42 * implementation-specific definitions.
43 *
44 * Written by Steve Deering, Stanford, May 1988.
45 *
46 * MULTICAST Revision: 3.5.1.3
47 */
48
49#ifndef BURN_BRIDGES
50/*
51 * Pre-IGMPV3 igmpstat structure.
52 */
53struct oigmpstat {
54 u_int igps_rcv_total; /* total IGMP messages received */
55 u_int igps_rcv_tooshort; /* received with too few bytes */
56 u_int igps_rcv_badsum; /* received with bad checksum */
57 u_int igps_rcv_queries; /* received membership queries */
58 u_int igps_rcv_badqueries; /* received invalid queries */
59 u_int igps_rcv_reports; /* received membership reports */
60 u_int igps_rcv_badreports; /* received invalid reports */
61 u_int igps_rcv_ourreports; /* received reports for our groups */
62 u_int igps_snd_reports; /* sent membership reports */
63 u_int igps_rcv_toolong; /* received with too many bytes */
64};
65#endif
66
67/*
68 * IGMPv3 protocol statistics.
69 */
70struct igmpstat {
71 /*
72 * Structure header (to insulate ABI changes).
73 */
74 uint32_t igps_version; /* version of this structure */
75 uint32_t igps_len; /* length of this structure */
76 /*
77 * Message statistics.
78 */
79 uint64_t igps_rcv_total; /* total IGMP messages received */
80 uint64_t igps_rcv_tooshort; /* received with too few bytes */
81 uint64_t igps_rcv_badttl; /* received with ttl other than 1 */
82 uint64_t igps_rcv_badsum; /* received with bad checksum */
83 /*
84 * Query statistics.
85 */
86 uint64_t igps_rcv_v1v2_queries; /* received IGMPv1/IGMPv2 queries */
87 uint64_t igps_rcv_v3_queries; /* received IGMPv3 queries */
88 uint64_t igps_rcv_badqueries; /* received invalid queries */
89 uint64_t igps_rcv_gen_queries; /* received general queries */
90 uint64_t igps_rcv_group_queries;/* received group queries */
91 uint64_t igps_rcv_gsr_queries; /* received group-source queries */
92 uint64_t igps_drop_gsr_queries; /* dropped group-source queries */
93 /*
94 * Report statistics.
95 */
96 uint64_t igps_rcv_reports; /* received membership reports */
97 uint64_t igps_rcv_badreports; /* received invalid reports */
98 uint64_t igps_rcv_ourreports; /* received reports for our groups */
99 uint64_t igps_rcv_nora; /* received w/o Router Alert option */
100 uint64_t igps_snd_reports; /* sent membership reports */
101 /*
102 * Padding for future additions.
103 */
104 uint64_t __igps_pad[4];
105};
106#define IGPS_VERSION_3 3 /* as of FreeBSD 8.x */
107#define IGPS_VERSION3_LEN 168
108
109#ifdef _KERNEL
110#define IGMPSTAT_ADD(name, val) V_igmpstat.name += (val)
111#define IGMPSTAT_INC(name) IGMPSTAT_ADD(name, 1)
112#endif
113
114#ifdef CTASSERT
115CTASSERT(sizeof(struct igmpstat) == 168);
116#endif
117
118#ifdef _KERNEL
119#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
120
121#define IGMP_MAX_STATE_CHANGES 24 /* Max pending changes per group */
122
123/*
124 * IGMP per-group states.
125 */
126#define IGMP_NOT_MEMBER 0 /* Can garbage collect in_multi */
127#define IGMP_SILENT_MEMBER 1 /* Do not perform IGMP for group */
128#define IGMP_REPORTING_MEMBER 2 /* IGMPv1/2/3 we are reporter */
129#define IGMP_IDLE_MEMBER 3 /* IGMPv1/2 we reported last */
130#define IGMP_LAZY_MEMBER 4 /* IGMPv1/2 other member reporting */
131#define IGMP_SLEEPING_MEMBER 5 /* IGMPv1/2 start query response */
132#define IGMP_AWAKENING_MEMBER 6 /* IGMPv1/2 group timer will start */
133#define IGMP_G_QUERY_PENDING_MEMBER 7 /* IGMPv3 group query pending */
134#define IGMP_SG_QUERY_PENDING_MEMBER 8 /* IGMPv3 source query pending */
135#define IGMP_LEAVING_MEMBER 9 /* IGMPv3 dying gasp (pending last */
136 /* retransmission of INCLUDE {}) */
137
138/*
139 * IGMP version tag.
140 */
141#define IGMP_VERSION_NONE 0 /* Invalid */
142#define IGMP_VERSION_1 1
143#define IGMP_VERSION_2 2
144#define IGMP_VERSION_3 3 /* Default */
145
146/*
147 * IGMPv3 protocol control variables.
148 */
149#define IGMP_RV_INIT 2 /* Robustness Variable */
150#define IGMP_RV_MIN 1
151#define IGMP_RV_MAX 7
152
153#define IGMP_QI_INIT 125 /* Query Interval (s) */
154#define IGMP_QI_MIN 1
155#define IGMP_QI_MAX 255
156
157#define IGMP_QRI_INIT 10 /* Query Response Interval (s) */
158#define IGMP_QRI_MIN 1
159#define IGMP_QRI_MAX 255
160
161#define IGMP_URI_INIT 3 /* Unsolicited Report Interval (s) */
162#define IGMP_URI_MIN 0
163#define IGMP_URI_MAX 10
164
165#define IGMP_MAX_G_GS_PACKETS 8 /* # of packets to answer G/GS */
166#define IGMP_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */
167#define IGMP_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */
168#define IGMP_MAX_RESPONSE_BURST 4 /* # of responses to send at once */
169#define IGMP_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */
170
171/*
172 * IGMP-specific mbuf flags.
173 */
174#define M_IGMPV2 M_PROTO1 /* Packet is IGMPv2 */
175#define M_IGMPV3_HDR M_PROTO2 /* Packet has IGMPv3 headers */
176#define M_GROUPREC M_PROTO3 /* mbuf chain is a group record */
177#define M_IGMP_LOOP M_PROTO4 /* transmit on loif, not real ifp */
178
179/*
180 * Default amount of leading space for IGMPv3 to allocate at the
181 * beginning of its mbuf packet chains, to avoid fragmentation and
182 * unnecessary allocation of leading mbufs.
183 */
184#define RAOPT_LEN 4 /* Length of IP Router Alert option */
185#define IGMP_LEADINGSPACE \
186 (sizeof(struct ip) + RAOPT_LEN + sizeof(struct igmp_report))
187
188/*
189 * Subsystem lock macros.
190 * The IGMP lock is only taken with IGMP. Currently it is system-wide.
191 * VIMAGE: The lock could be pushed to per-VIMAGE granularity in future.
192 */
193#define IGMP_LOCK_INIT() mtx_init(&igmp_mtx, "igmp_mtx", NULL, MTX_DEF)
194#define IGMP_LOCK_DESTROY() mtx_destroy(&igmp_mtx)
195#define IGMP_LOCK() mtx_lock(&igmp_mtx)
196#define IGMP_LOCK_ASSERT() mtx_assert(&igmp_mtx, MA_OWNED)
197#define IGMP_UNLOCK() mtx_unlock(&igmp_mtx)
198#define IGMP_UNLOCK_ASSERT() mtx_assert(&igmp_mtx, MA_NOTOWNED)
199
200struct igmp_ifinfo;
201
202int igmp_change_state(struct in_multi *);
203void igmp_fasttimo(void);
204struct igmp_ifinfo *
205 igmp_domifattach(struct ifnet *);
206void igmp_domifdetach(struct ifnet *);
207void igmp_ifdetach(struct ifnet *);
|
208void igmp_input(struct mbuf *, int);
| 208int igmp_input(struct mbuf **, int *, int);
|
209void igmp_slowtimo(void);
210
211SYSCTL_DECL(_net_inet_igmp);
212
213#endif /* _KERNEL */
214
215/*
216 * Identifiers for IGMP sysctl nodes
217 */
218#define IGMPCTL_STATS 1 /* statistics (read-only) */
219
220#endif
| 209void igmp_slowtimo(void);
210
211SYSCTL_DECL(_net_inet_igmp);
212
213#endif /* _KERNEL */
214
215/*
216 * Identifiers for IGMP sysctl nodes
217 */
218#define IGMPCTL_STATS 1 /* statistics (read-only) */
219
220#endif
|