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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*
27: * Copyright (c) 1988 Stephen Deering.
28: * Copyright (c) 1992, 1993
29: * The Regents of the University of California. All rights reserved.
30: *
31: * This code is derived from software contributed to Berkeley by
32: * Stephen Deering of Stanford University.
33: *
34: * Redistribution and use in source and binary forms, with or without
35: * modification, are permitted provided that the following conditions
36: * are met:
37: * 1. Redistributions of source code must retain the above copyright
38: * notice, this list of conditions and the following disclaimer.
39: * 2. Redistributions in binary form must reproduce the above copyright
40: * notice, this list of conditions and the following disclaimer in the
41: * documentation and/or other materials provided with the distribution.
42: * 3. All advertising materials mentioning features or use of this software
43: * must display the following acknowledgement:
44: * This product includes software developed by the University of
45: * California, Berkeley and its contributors.
46: * 4. Neither the name of the University nor the names of its contributors
47: * may be used to endorse or promote products derived from this software
48: * without specific prior written permission.
49: *
50: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60: * SUCH DAMAGE.
61: *
62: * @(#)igmp_var.h 8.1 (Berkeley) 7/19/93
63: */
64:
65: /*
66: * Internet Group Management Protocol (IGMP),
67: * implementation-specific definitions.
68: *
69: * Written by Steve Deering, Stanford, May 1988.
70: *
71: * MULTICAST 1.1
72: */
73:
74: struct igmpstat {
75: u_long igps_rcv_total; /* total IGMP messages received */
76: u_long igps_rcv_tooshort; /* received with too few bytes */
77: u_long igps_rcv_badsum; /* received with bad checksum */
78: u_long igps_rcv_queries; /* received membership queries */
79: u_long igps_rcv_badqueries; /* received invalid queries */
80: u_long igps_rcv_reports; /* received membership reports */
81: u_long igps_rcv_badreports; /* received invalid reports */
82: u_long igps_rcv_ourreports; /* received reports for our groups */
83: u_long igps_snd_reports; /* sent membership reports */
84: };
85:
86: #ifdef _KERNEL
87: extern struct igmpstat igmpstat;
88:
89: /*
90: * Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
91: * DELAY * countdown frequency). We assume that the routine random()
92: * is defined somewhere (and that it returns a positive number).
93: */
94: #define IGMP_RANDOM_DELAY(multiaddr) \
95: /* struct in_addr multiaddr; */ \
96: (random() % (IGMP_MAX_HOST_REPORT_DELAY * PR_FASTHZ) + 1)
97:
98: void igmp_init __P((void));
99: void igmp_input __P((struct mbuf *, int));
100: void igmp_joingroup __P((struct in_multi *));
101: void igmp_leavegroup __P((struct in_multi *));
102: void igmp_fasttimo __P((void));
103: #endif
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