1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_NETINET_IGMP_VAR_H
27#define	_NETINET_IGMP_VAR_H
28
29#pragma ident	"%Z%%M%	%I%	%E% SMI"
30
31#ifdef	__cplusplus
32extern "C" {
33#endif
34
35/*
36 * Internet Group Management Protocol (IGMP),
37 * implementation-specific definitions.
38 *
39 * Written by Steve Deering, Stanford, May 1988.
40 * Modified by Ajit Thyagarajan, PARC, August 1994.
41 *
42 * MULTICAST 3.5.1.1
43 */
44
45struct igmpstat {
46	uint_t	igps_rcv_total;		/* total IGMP messages received    */
47	uint_t	igps_rcv_tooshort;	/* received with too few bytes	   */
48	uint_t	igps_rcv_badsum;	/* received with bad checksum	   */
49	uint_t	igps_rcv_queries;	/* received membership queries	   */
50	uint_t	igps_rcv_badqueries;	/* received invalid queries	   */
51	uint_t	igps_rcv_reports;	/* received membership reports	   */
52	uint_t	igps_rcv_badreports;	/* received invalid reports	   */
53	uint_t	igps_rcv_ourreports;	/* received reports for our groups */
54	uint_t	igps_snd_reports;	/* sent membership reports	   */
55};
56
57#ifdef _KERNEL
58/*
59 * slowtimo interval used for both IGMP and MLD
60 */
61#define	MCAST_SLOWTIMO_INTERVAL	10000	/* milliseconds */
62
63
64/*
65 * Macro to compute a random timer value between 1 and maxticks.
66 * Include <sys/random.h> for random_get_pseudo_bytes() declaration.
67 */
68#include <sys/random.h>
69#define	MCAST_RANDOM_DELAY(timer, maxticks)				      \
70	/* uint_t timer; int maxticks */				      \
71	(void) random_get_pseudo_bytes((uint8_t *)&(timer), sizeof (uint_t)); \
72	(timer) = ((uint_t)(timer) % (maxticks)) + 1
73
74/*
75 * States for IGMPv2's leave processing
76 */
77#define	IGMP_OTHERMEMBER			0
78#define	IGMP_IREPORTEDLAST			1
79
80/*
81 * We must remember what version the subnet's querier is.
82 */
83#define	IGMP_V1_ROUTER				0
84#define	IGMP_V2_ROUTER				1
85#define	IGMP_V3_ROUTER				2
86
87/*
88 * Map MLD versions to corresponding IGMP versions
89 */
90#define	MLD_V1_ROUTER				IGMP_V2_ROUTER
91#define	MLD_V2_ROUTER				IGMP_V3_ROUTER
92
93/*
94 * Default values for various IGMPv3/MLDv2 values
95 */
96#define	MCAST_DEF_ROBUSTNESS			2
97#define	MCAST_QUERY_RESP_INTERVAL		10	/* in seconds */
98#define	MCAST_DEF_QUERY_INTERVAL		125	/* in seconds */
99#define	MCAST_DEF_QUERY_RESP_INTERVAL		100	/* in tenths of secs */
100#define	MCAST_DEF_UNSOL_RPT_INTERVAL		1	/* in seconds */
101
102/*
103 * IGMP and MLD mandate a TTL/Hop Limit of 1 for protocol messages
104 */
105#define	IGMP_TTL	1
106#define	MLD_HOP_LIMIT	1
107
108#endif	/* _KERNEL */
109
110#ifdef	__cplusplus
111}
112#endif
113
114#endif	/* _NETINET_IGMP_VAR_H */
115