source: rtems/cpukit/libnetworking/netinet/igmp_var.h @ d589e75

4.104.114.84.95
Last change on this file since d589e75 was d589e75, checked in by Ralf Corsepius <ralf.corsepius@…>, on 04/26/04 at 11:46:52

2004-04-26 Ralf Corsepius <ralf_corsepius@…>

  • libnetworking/netinet/igmp_var.h: Cosmetic updates from FreeBSD.
  • libnetworking/sys/sysctl.h: Update from FreeBSD.
  • libnetworking/sys/socketvar.h: Update from FreeBSD.
  • Property mode set to 100644
File size: 3.6 KB
Line 
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
49struct 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
62extern struct igmpstat igmpstat;
63
64#define IGMP_RANDOM_DELAY(X) (random() % (X) + 1)
65
66/*
67 * States for IGMPv2's leave processing
68 */
69#define IGMP_OTHERMEMBER                        0
70#define IGMP_IREPORTEDLAST                      1
71
72/*
73 * We must remember what version the subnet's querier is.
74 * We conveniently use the IGMP message type for the proper
75 * membership report to keep this state.
76 */
77#define IGMP_V1_ROUTER                          IGMP_V1_MEMBERSHIP_REPORT
78#define IGMP_V2_ROUTER                          IGMP_V2_MEMBERSHIP_REPORT
79
80/*
81 * Revert to new router if we haven't heard from an old router in
82 * this amount of time.
83 */
84#define IGMP_AGE_THRESHOLD                      540
85
86void    igmp_init(void);
87void    igmp_input(struct mbuf *, int);
88void    igmp_joingroup(struct in_multi *);
89void    igmp_leavegroup(struct in_multi *);
90void    igmp_fasttimo(void);
91void    igmp_slowtimo(void);
92
93SYSCTL_DECL(_net_inet_igmp);
94
95#endif
96
97/*
98 * Names for IGMP sysctl objects
99 */
100#define IGMPCTL_STATS           1       /* statistics (read-only) */
101#define IGMPCTL_MAXID           2
102
103#define IGMPCTL_NAMES { \
104        { 0, 0 }, \
105        { "stats", CTLTYPE_STRUCT }, \
106}
107#endif
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