/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1990 Mentat Inc. */ #ifndef _NETINET_IGMP_H #define _NETINET_IGMP_H #ifdef __cplusplus extern "C" { #endif /* * Internet Group Management Protocol (IGMP) definitions. * * Written by Steve Deering, Stanford, May 1988. * Modified by Rosen Sharma, Stanford, Aug 1994 * Modified by Bill Fenner, Xerox PARC, April 1995 * * MULTICAST 3.5.1.1 */ /* * IGMP packet format. */ struct igmp { uchar_t igmp_type; /* version & type of IGMP message */ uchar_t igmp_code; /* code for routing sub-msgs */ ushort_t igmp_cksum; /* IP-style checksum */ struct in_addr igmp_group; /* group address being reported */ }; /* (zero for queries) */ /* IGMPv3 Membership Report common header */ struct igmp3r { uchar_t igmp3r_type; /* version & type of IGMP message */ uchar_t igmp3r_code; /* code for routing sub-msgs */ ushort_t igmp3r_cksum; /* IP-style checksum */ ushort_t igmp3r_res; /* Reserved */ ushort_t igmp3r_numrec; /* Number of group records */ }; /* IGMPv3 Group Record header */ struct grphdr { uchar_t grphdr_type; /* type of record */ uchar_t grphdr_auxlen; /* auxiliary data length */ ushort_t grphdr_numsrc; /* number of sources */ struct in_addr grphdr_group; /* group address being reported */ }; /* IGMPv3 Membership Query header */ struct igmp3q { uchar_t igmp3q_type; /* type of IGMP message */ uchar_t igmp3q_mxrt; /* maximum response time */ ushort_t igmp3q_cksum; /* IP-style checksum */ struct in_addr igmp3q_group; /* group address being queried */ ushort_t igmp3q_res; /* reserved */ ushort_t igmp3q_numsrc; /* number of sources */ }; #ifdef _KERNEL typedef struct igmp_s { uint8_t igmp_type; /* version & type of IGMP message */ uint8_t igmp_code; /* code for routing sub-msgs */ uint8_t igmp_cksum[2]; /* IP-style checksum */ uint8_t igmp_group[4]; /* group address being reported */ } igmp_t; /* (zero for queries) */ /* Aligned igmp header */ typedef struct igmpa_s { uint8_t igmpa_type; /* version & type of IGMP message */ uint8_t igmpa_code; /* code for routing sub-msgs */ uint16_t igmpa_cksum; /* IP-style checksum */ ipaddr_t igmpa_group; /* group address being reported */ } igmpa_t; /* (zero for queries) */ /* Aligned IGMPv3 Membership Report common header */ typedef struct igmp3ra_s { uint8_t igmp3ra_type; /* version & type of IGMP message */ uint8_t igmp3ra_res; /* Reserved */ uint16_t igmp3ra_cksum; /* IP-style checksum */ uint16_t igmp3ra_res1; /* Reserved */ uint16_t igmp3ra_numrec; /* Number of group records */ } igmp3ra_t; /* Aligned IGMPv3 Group Record header */ typedef struct grphdra_s { uint8_t grphdra_type; /* type of record */ uint8_t grphdra_auxlen; /* auxiliary data length */ uint16_t grphdra_numsrc; /* number of sources */ ipaddr_t grphdra_group; /* group addrss being reported */ } grphdra_t; /* Aligned IGMpv3 Membership Query header */ typedef struct igmp3qa_s { uint8_t igmp3qa_type; /* type of IGMP message */ uint8_t igmp3qa_mxrc; /* maximum response code */ uint16_t igmp3qa_cksum; /* IP-style checksum */ ipaddr_t igmp3qa_group; /* group address being queried */ uint8_t igmp3qa_sqrv; /* S Flag, Q's Robustness Variable */ uint8_t igmp3qa_qqic; /* Querier's Query Interval Code */ uint16_t igmp3qa_numsrc; /* number of sources */ } igmp3qa_t; #endif /* _KERNEL */ #define IGMP_MINLEN 8 #define IGMP_V3_QUERY_MINLEN 12 /* * Message types, including version number. */ #define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ #define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Vers.1 membership report */ #define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Vers.2 membership report */ #define IGMP_V3_MEMBERSHIP_REPORT 0x22 /* Vers.3 membership report */ #define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */ #define IGMP_DVMRP 0x13 /* DVMRP routing message */ #define IGMP_PIM 0x14 /* PIM routing message */ #define IGMP_MTRACE_RESP 0x1e /* traceroute resp to sender */ #define IGMP_MTRACE 0x1f /* mcast traceroute messages */ #define IGMP_MAX_HOST_REPORT_DELAY 10 /* max delay for response to */ /* query (in seconds) */ /* according to RFC1112 */ #define IGMP_V3_MAXRT_FPMIN 0x80 /* max resp code fp format */ #define IGMP_V3_MAXRT_MANT_MASK 0x0f #define IGMP_V3_MAXRT_EXP_MASK 0x70 #define IGMP_V3_SFLAG_MASK 0x8 /* mask off s part of sqrv */ #define IGMP_V3_RV_MASK 0x7 /* mask off qrv part of sqrv */ #define IGMP_V3_QQI_FPMIN 0x80 /* qqi code fp format */ #define IGMP_V3_QQI_MANT_MASK 0x0f #define IGMP_V3_QQI_EXP_MASK 0x70 /* * IGMPv3/MLDv2-specific definitions */ /* * Group Record Types. The values of these enums match the Record Type * field values defined in RFCs 3376 and 3810 for IGMPv3 and MLDv2 reports. */ typedef enum { MODE_IS_INCLUDE = 1, MODE_IS_EXCLUDE, CHANGE_TO_INCLUDE, CHANGE_TO_EXCLUDE, ALLOW_NEW_SOURCES, BLOCK_OLD_SOURCES } mcast_record_t; /* Router Alert Option */ #define RTRALERT_LEN 4 #define RTRALERT_LEN_IN_WORDS 1 /* * The following four defininitions are for backwards compatibility. * They should be removed as soon as all applications are updated to * use the new constant names. */ #define IGMP_HOST_MEMBERSHIP_QUERY IGMP_MEMBERSHIP_QUERY #define IGMP_HOST_MEMBERSHIP_REPORT IGMP_V1_MEMBERSHIP_REPORT #define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT #define IGMP_HOST_LEAVE_MESSAGE IGMP_V2_LEAVE_GROUP #ifdef __cplusplus } #endif #endif /* _NETINET_IGMP_H */
