Annotation of sys/netinet/igmp_var.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: igmp_var.h,v 1.7 2003/06/02 23:28:13 millert Exp $ */
2: /* $NetBSD: igmp_var.h,v 1.9 1996/02/13 23:41:31 christos Exp $ */
3:
4: /*
5: * Copyright (c) 1988 Stephen Deering.
6: * Copyright (c) 1992, 1993
7: * The Regents of the University of California. All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * Stephen Deering of Stanford University.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: * 3. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
37: */
38:
39: #ifndef _NETINET_IGMP_VAR_H_
40: #define _NETINET_IGMP_VAR_H_
41:
42: /*
43: * Internet Group Management Protocol (IGMP),
44: * implementation-specific definitions.
45: *
46: * Written by Steve Deering, Stanford, May 1988.
47: * Modified by Rosen Sharma, Stanford, Aug 1994.
48: * Modified by Bill Fenner, Xerox PARC, Feb 1995.
49: *
50: * MULTICAST 1.3
51: */
52:
53: struct igmpstat {
54: u_long igps_rcv_total; /* total IGMP messages received */
55: u_long igps_rcv_tooshort; /* received with too few bytes */
56: u_long igps_rcv_badsum; /* received with bad checksum */
57: u_long igps_rcv_queries; /* received membership queries */
58: u_long igps_rcv_badqueries; /* received invalid queries */
59: u_long igps_rcv_reports; /* received membership reports */
60: u_long igps_rcv_badreports; /* received invalid reports */
61: u_long igps_rcv_ourreports; /* received reports for our groups */
62: u_long igps_snd_reports; /* sent membership reports */
63: };
64:
65: #ifdef _KERNEL
66: extern struct igmpstat igmpstat;
67:
68: /*
69: * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
70: * DELAY * countdown frequency). We assume that the routine random()
71: * is defined somewhere (and that it returns a positive number).
72: */
73: #define IGMP_RANDOM_DELAY(X) (arc4random() % (X) + 1)
74:
75: void igmp_init(void);
76: void igmp_input(struct mbuf *, ...);
77: void igmp_joingroup(struct in_multi *);
78: void igmp_leavegroup(struct in_multi *);
79: void igmp_fasttimo(void);
80: void igmp_slowtimo(void);
81: #endif /* _KERNEL */
82: #endif /* _NETINET_IGMP_VAR_H_ */
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