X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/netinet/igmp.h diff --git a/bsd/netinet/igmp.h b/bsd/netinet/igmp.h index dc62c7da5..28352317d 100644 --- a/bsd/netinet/igmp.h +++ b/bsd/netinet/igmp.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2010 Apple, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1988 Stephen Deering. @@ -71,8 +77,11 @@ * MULTICAST Revision: 3.5.1.2 */ +/* Minimum length of any IGMP protocol message. */ +#define IGMP_MINLEN 8 + /* - * IGMP packet format. + * IGMPv1/v2 query and host report format. */ struct igmp { u_char igmp_type; /* version & type of IGMP message */ @@ -81,38 +90,91 @@ struct igmp { struct in_addr igmp_group; /* group address being reported */ }; /* (zero for queries) */ -#define IGMP_MINLEN 8 +/* + * IGMP v3 query format. + */ +struct igmpv3 { + u_char igmp_type; /* version & type of IGMP message */ + u_char igmp_code; /* subtype for routing msgs */ + u_short igmp_cksum; /* IP-style checksum */ + struct in_addr igmp_group; /* group address being reported */ + /* (zero for queries) */ + u_char igmp_misc; /* reserved/suppress/robustness */ + u_char igmp_qqi; /* querier's query interval */ + u_short igmp_numsrc; /* number of sources */ + /*struct in_addr igmp_sources[1];*/ /* source addresses */ +}; +#define IGMP_V3_QUERY_MINLEN 12 +#define IGMP_EXP(x) (((x) >> 4) & 0x07) +#define IGMP_MANT(x) ((x) & 0x0f) +#define IGMP_QRESV(x) (((x) >> 4) & 0x0f) +#define IGMP_SFLAG(x) (((x) >> 3) & 0x01) +#define IGMP_QRV(x) ((x) & 0x07) + +struct igmp_grouprec { + u_char ig_type; /* record type */ + u_char ig_datalen; /* length of auxiliary data */ + u_short ig_numsrc; /* number of sources */ + struct in_addr ig_group; /* group address being reported */ + /*struct in_addr ig_sources[1];*/ /* source addresses */ +}; +#define IGMP_GRPREC_HDRLEN 8 /* - * Message types, including version number. + * IGMPv3 host membership report header. */ -#define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ -#define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ -#define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ -#define IGMP_V2_LEAVE_GROUP 0x17 /* Leave-group message */ +struct igmp_report { + u_char ir_type; /* IGMP_v3_HOST_MEMBERSHIP_REPORT */ + u_char ir_rsv1; /* must be zero */ + u_short ir_cksum; /* checksum */ + u_short ir_rsv2; /* must be zero */ + u_short ir_numgrps; /* number of group records */ + /*struct igmp_grouprec ir_groups[1];*/ /* group records */ +}; +#define IGMP_V3_REPORT_MINLEN 8 +#define IGMP_V3_REPORT_MAXRECS 65535 +/* + * Message types, including version number. + */ +#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* membership query */ +#define IGMP_v1_HOST_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ #define IGMP_DVMRP 0x13 /* DVMRP routing message */ -#define IGMP_PIM 0x14 /* PIM routing message */ +#define IGMP_PIM 0x14 /* PIMv1 message (historic) */ +#define IGMP_v2_HOST_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ +#define IGMP_HOST_LEAVE_MESSAGE 0x17 /* Leave-group message */ +#define IGMP_MTRACE_REPLY 0x1e /* mtrace(8) reply */ +#define IGMP_MTRACE_QUERY 0x1f /* mtrace(8) probe */ +#define IGMP_v3_HOST_MEMBERSHIP_REPORT 0x22 /* Ver. 3 membership report */ -#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 */ +/* + * IGMPv3 report modes. + */ +#define IGMP_DO_NOTHING 0 /* don't send a record */ +#define IGMP_MODE_IS_INCLUDE 1 /* MODE_IN */ +#define IGMP_MODE_IS_EXCLUDE 2 /* MODE_EX */ +#define IGMP_CHANGE_TO_INCLUDE_MODE 3 /* TO_IN */ +#define IGMP_CHANGE_TO_EXCLUDE_MODE 4 /* TO_EX */ +#define IGMP_ALLOW_NEW_SOURCES 5 /* ALLOW_NEW */ +#define IGMP_BLOCK_OLD_SOURCES 6 /* BLOCK_OLD */ +/* + * IGMPv3 query types. + */ +#define IGMP_V3_GENERAL_QUERY 1 +#define IGMP_V3_GROUP_QUERY 2 +#define IGMP_V3_GROUP_SOURCE_QUERY 3 -#define IGMP_TIMER_SCALE 10 /* denotes that the igmp code field */ - /* specifies time in 10th of seconds*/ +/* + * Maximum report interval for IGMP v1/v2 host membership reports [RFC 1112] + */ +#define IGMP_V1V2_MAX_RI 10 +#define IGMP_MAX_HOST_REPORT_DELAY IGMP_V1V2_MAX_RI /* - * 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. + * IGMP_TIMER_SCALE denotes that the igmp code field specifies + * time in tenths of a second. */ -#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 +#define IGMP_TIMER_SCALE 10 #endif /* _NETINET_IGMP_H_ */