/* * Copyright (c) 2010 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * 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. * * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /*- * Copyright (c) 2009 Bruce Simpson. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _NETINET6_MLD6_H_ #define _NETINET6_MLD6_H_ /* * Multicast Listener Discovery (MLD) definitions. */ /* Minimum length of any MLD protocol message. */ #define MLD_MINLEN sizeof(struct icmp6_hdr) /* * MLD v2 query format. * See <netinet/icmp6.h> for struct mld_hdr * (MLDv1 query and host report format). */ struct mldv2_query { struct icmp6_hdr mld_icmp6_hdr; /* ICMPv6 header */ struct in6_addr mld_addr; /* address being queried */ uint8_t mld_misc; /* reserved/suppress/robustness */ uint8_t mld_qqi; /* querier's query interval */ uint16_t mld_numsrc; /* number of sources */ /* followed by 1..numsrc source addresses */ } __attribute__((__packed__)); #define MLD_V2_QUERY_MINLEN sizeof(struct mldv2_query) #define MLD_MRC_EXP(x) ((ntohs((x)) >> 12) & 0x0007) #define MLD_MRC_MANT(x) (ntohs((x)) & 0x0fff) #define MLD_QQIC_EXP(x) (((x) >> 4) & 0x07) #define MLD_QQIC_MANT(x) ((x) & 0x0f) #define MLD_QRESV(x) (((x) >> 4) & 0x0f) #define MLD_SFLAG(x) (((x) >> 3) & 0x01) #define MLD_QRV(x) ((x) & 0x07) /* * MLDv2 host membership report header. * mld_type: MLDV2_LISTENER_REPORT */ struct mldv2_report { struct icmp6_hdr mld_icmp6_hdr; /* followed by 1..numgrps records */ } __attribute__((__packed__)); /* overlaid on struct icmp6_hdr. */ #define mld_numrecs mld_icmp6_hdr.icmp6_data16[1] struct mldv2_record { uint8_t mr_type; /* record type */ uint8_t mr_datalen; /* length of auxiliary data */ uint16_t mr_numsrc; /* number of sources */ struct in6_addr mr_addr; /* address being reported */ /* followed by 1..numsrc source addresses */ } __attribute__((__packed__)); #define MLD_V2_REPORT_MAXRECS 65535 /* * MLDv2 report modes. */ #define MLD_DO_NOTHING 0 /* don't send a record */ #define MLD_MODE_IS_INCLUDE 1 /* MODE_IN */ #define MLD_MODE_IS_EXCLUDE 2 /* MODE_EX */ #define MLD_CHANGE_TO_INCLUDE_MODE 3 /* TO_IN */ #define MLD_CHANGE_TO_EXCLUDE_MODE 4 /* TO_EX */ #define MLD_ALLOW_NEW_SOURCES 5 /* ALLOW_NEW */ #define MLD_BLOCK_OLD_SOURCES 6 /* BLOCK_OLD */ /* * MLDv2 query types. */ #define MLD_V2_GENERAL_QUERY 1 #define MLD_V2_GROUP_QUERY 2 #define MLD_V2_GROUP_SOURCE_QUERY 3 /* * Maximum report interval for MLDv1 host membership reports. */ #define MLD_V1_MAX_RI 10 /* * MLD_TIMER_SCALE denotes that the MLD code field specifies * time in milliseconds. */ #define MLD_TIMER_SCALE 1000 #endif /* _NETINET6_MLD6_H_ */