HAMMER 60I/Many: Mirroring
[dragonfly.git] / sys / netinet / igmp_var.h
blob2ed8e5b2edaa6c66c847522a86d6c7377cafa306
1 /*
2 * Copyright (c) 1988 Stephen Deering.
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
7 * Stephen Deering of Stanford University.
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 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
37 * from: @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
38 * $FreeBSD: src/sys/netinet/igmp_var.h,v 1.17 1999/12/29 04:40:59 peter Exp $
39 * $DragonFly: src/sys/netinet/igmp_var.h,v 1.6 2006/09/03 18:52:29 dillon Exp $
42 #ifndef _NETINET_IGMP_VAR_H_
43 #define _NETINET_IGMP_VAR_H_
45 #ifndef _SYS_TYPES_H_
46 #include <sys/types.h>
47 #endif
49 #ifdef _KERNEL
51 #ifndef _SYS_SYSCTL_H_
52 #include <sys/sysctl.h>
53 #endif
55 #endif
58 * Internet Group Management Protocol (IGMP),
59 * implementation-specific definitions.
61 * Written by Steve Deering, Stanford, May 1988.
63 * MULTICAST Revision: 3.5.1.3
66 struct igmpstat {
67 u_int igps_rcv_total; /* total IGMP messages received */
68 u_int igps_rcv_tooshort; /* received with too few bytes */
69 u_int igps_rcv_badsum; /* received with bad checksum */
70 u_int igps_rcv_queries; /* received membership queries */
71 u_int igps_rcv_badqueries; /* received invalid queries */
72 u_int igps_rcv_reports; /* received membership reports */
73 u_int igps_rcv_badreports; /* received invalid reports */
74 u_int igps_rcv_ourreports; /* received reports for our groups */
75 u_int igps_snd_reports; /* sent membership reports */
78 #ifdef _KERNEL
79 #define IGMP_RANDOM_DELAY(X) (krandom() % (X) + 1)
82 * States for IGMPv2's leave processing
84 #define IGMP_OTHERMEMBER 0
85 #define IGMP_IREPORTEDLAST 1
88 * We must remember what version the subnet's querier is.
89 * We conveniently use the IGMP message type for the proper
90 * membership report to keep this state.
92 #define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT
93 #define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT
96 * Revert to new router if we haven't heard from an old router in
97 * this amount of time.
99 #define IGMP_AGE_THRESHOLD 540
101 struct mbuf;
102 struct in_multi;
104 void igmp_init (void);
105 void igmp_input (struct mbuf *, ...);
106 void igmp_joingroup (struct in_multi *);
107 void igmp_leavegroup (struct in_multi *);
108 void igmp_fasttimo (void);
109 void igmp_slowtimo (void);
111 SYSCTL_DECL(_net_inet_igmp);
113 #endif
116 * Names for IGMP sysctl objects
118 #define IGMPCTL_STATS 1 /* statistics (read-only) */
119 #define IGMPCTL_MAXID 2
121 #define IGMPCTL_NAMES { \
122 { 0, 0 }, \
123 { "stats", CTLTYPE_STRUCT }, \
125 #endif