master
1/* $NetBSD: igmp_var.h,v 1.27 2021/02/17 22:32:04 christos Exp $ */
2
3/*
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Stephen Deering of Stanford University.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
35 */
36
37/*
38 * Copyright (c) 1988 Stephen Deering.
39 *
40 * This code is derived from software contributed to Berkeley by
41 * Stephen Deering of Stanford University.
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgement:
53 * This product includes software developed by the University of
54 * California, Berkeley and its contributors.
55 * 4. Neither the name of the University nor the names of its contributors
56 * may be used to endorse or promote products derived from this software
57 * without specific prior written permission.
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 * SUCH DAMAGE.
70 *
71 * @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
72 */
73
74#ifndef _NETINET_IGMP_VAR_H_
75#define _NETINET_IGMP_VAR_H_
76
77/*
78 * Internet Group Management Protocol (IGMP),
79 * implementation-specific definitions.
80 *
81 * Written by Steve Deering, Stanford, May 1988.
82 * Modified by Rosen Sharma, Stanford, Aug 1994.
83 * Modified by Bill Fenner, Xerox PARC, Feb 1995.
84 *
85 * MULTICAST 1.3
86 */
87
88#define IGMP_STAT_RCV_TOTAL 1 /* total IGMP messages received */
89#define IGMP_STAT_RCV_TOOSHORT 2 /* received with too few bytes */
90#define IGMP_STAT_RCV_BADSUM 3 /* received with bad checksum */
91#define IGMP_STAT_RCV_QUERIES 4 /* received membership queries */
92#define IGMP_STAT_RCV_BADQUERIES 5 /* received invalid queries */
93#define IGMP_STAT_RCV_REPORTS 6 /* received membership reports */
94#define IGMP_STAT_RCV_BADREPORTS 7 /* received invalid reports */
95#define IGMP_STAT_RCV_OURREPORTS 8 /* received reports for our groups */
96#define IGMP_STAT_SND_REPORTS 9 /* sent membership reports */
97
98#define IGMP_NSTATS 10
99
100#ifdef _KERNEL
101/*
102 * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
103 * DELAY * countdown frequency). We assume that the routine random()
104 * is defined somewhere (and that it returns a positive number).
105 */
106#define IGMP_RANDOM_DELAY(X) (cprng_fast32() % (X) + 1)
107
108void igmp_init(void);
109void igmp_input(struct mbuf *, int, int);
110int igmp_joingroup(struct in_multi *);
111void igmp_leavegroup(struct in_multi *);
112void igmp_fasttimo(void);
113void igmp_slowtimo(void);
114void igmp_purgeif(struct ifnet *);
115#endif /* _KERNEL */
116
117#endif /* !_NETINET_IGMP_VAR_H_ */