usr/src/uts/common/netinet/igmp_var.h

   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
  32 extern "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
  45 struct 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 */