RTEMS CPU Kit with SuperCore  4.11.3
igmp_var.h
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1 /*
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: src/sys/netinet/igmp_var.h,v 1.20 2004/04/07 20:46:13 imp Exp $
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 struct igmpstat {
50  u_int igps_rcv_total; /* total IGMP messages received */
51  u_int igps_rcv_tooshort; /* received with too few bytes */
52  u_int igps_rcv_badsum; /* received with bad checksum */
53  u_int igps_rcv_queries; /* received membership queries */
54  u_int igps_rcv_badqueries; /* received invalid queries */
55  u_int igps_rcv_reports; /* received membership reports */
56  u_int igps_rcv_badreports; /* received invalid reports */
57  u_int igps_rcv_ourreports; /* received reports for our groups */
58  u_int igps_snd_reports; /* sent membership reports */
59 };
60 
61 #ifdef _KERNEL
62 #define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
63 
64 /*
65  * States for IGMPv2's leave processing
66  */
67 #define IGMP_OTHERMEMBER 0
68 #define IGMP_IREPORTEDLAST 1
69 
70 /*
71  * We must remember what version the subnet's querier is.
72  * We conveniently use the IGMP message type for the proper
73  * membership report to keep this state.
74  */
75 #define IGMP_V1_ROUTER IGMP_V1_MEMBERSHIP_REPORT
76 #define IGMP_V2_ROUTER IGMP_V2_MEMBERSHIP_REPORT
77 
78 /*
79  * Revert to new router if we haven't heard from an old router in
80  * this amount of time.
81  */
82 #define IGMP_AGE_THRESHOLD 540
83 
84 void igmp_init(void);
85 void igmp_input(struct mbuf *, int);
86 void igmp_joingroup(struct in_multi *);
87 void igmp_leavegroup(struct in_multi *);
88 void igmp_fasttimo(void);
89 void igmp_slowtimo(void);
90 
91 SYSCTL_DECL(_net_inet_igmp);
92 
93 #endif
94 
95 /*
96  * Names for IGMP sysctl objects
97  */
98 #define IGMPCTL_STATS 1 /* statistics (read-only) */
99 #define IGMPCTL_MAXID 2
100 
101 #define IGMPCTL_NAMES { \
102  { 0, 0 }, \
103  { "stats", CTLTYPE_STRUCT }, \
104 }
105 #endif
void igmp_input(struct mbuf *m, int iphlen)
Definition: igmp.c:145
Definition: mbuf.h:103
Definition: in_var.h:152
Definition: igmp_var.h:50