fe267a5590
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
115 lines
3.8 KiB
C
115 lines
3.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2009 Bruce Simpson.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NETINET6_MLD6_H_
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#define _NETINET6_MLD6_H_
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/*
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* Multicast Listener Discovery (MLD) definitions.
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*/
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/* Minimum length of any MLD protocol message. */
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#define MLD_MINLEN sizeof(struct icmp6_hdr)
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/*
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* MLD v2 query format.
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* See <netinet/icmp6.h> for struct mld_hdr
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* (MLDv1 query and host report format).
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*/
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struct mldv2_query {
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struct icmp6_hdr mld_icmp6_hdr; /* ICMPv6 header */
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struct in6_addr mld_addr; /* address being queried */
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uint8_t mld_misc; /* reserved/suppress/robustness */
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uint8_t mld_qqi; /* querier's query interval */
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uint16_t mld_numsrc; /* number of sources */
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/* followed by 1..numsrc source addresses */
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} __packed;
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#define MLD_V2_QUERY_MINLEN sizeof(struct mldv2_query)
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#define MLD_MRC_EXP(x) ((ntohs((x)) >> 12) & 0x0007)
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#define MLD_MRC_MANT(x) (ntohs((x)) & 0x0fff)
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#define MLD_QQIC_EXP(x) (((x) >> 4) & 0x07)
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#define MLD_QQIC_MANT(x) ((x) & 0x0f)
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#define MLD_QRESV(x) (((x) >> 4) & 0x0f)
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#define MLD_SFLAG(x) (((x) >> 3) & 0x01)
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#define MLD_QRV(x) ((x) & 0x07)
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/*
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* MLDv2 host membership report header.
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* mld_type: MLDV2_LISTENER_REPORT
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*/
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struct mldv2_report {
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struct icmp6_hdr mld_icmp6_hdr;
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/* followed by 1..numgrps records */
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} __packed;
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/* overlaid on struct icmp6_hdr. */
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#define mld_numrecs mld_icmp6_hdr.icmp6_data16[1]
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struct mldv2_record {
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uint8_t mr_type; /* record type */
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uint8_t mr_datalen; /* length of auxiliary data */
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uint16_t mr_numsrc; /* number of sources */
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struct in6_addr mr_addr; /* address being reported */
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/* followed by 1..numsrc source addresses */
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} __packed;
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#define MLD_V2_REPORT_MAXRECS 65535
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/*
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* MLDv2 report modes.
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*/
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#define MLD_DO_NOTHING 0 /* don't send a record */
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#define MLD_MODE_IS_INCLUDE 1 /* MODE_IN */
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#define MLD_MODE_IS_EXCLUDE 2 /* MODE_EX */
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#define MLD_CHANGE_TO_INCLUDE_MODE 3 /* TO_IN */
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#define MLD_CHANGE_TO_EXCLUDE_MODE 4 /* TO_EX */
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#define MLD_ALLOW_NEW_SOURCES 5 /* ALLOW_NEW */
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#define MLD_BLOCK_OLD_SOURCES 6 /* BLOCK_OLD */
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/*
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* MLDv2 query types.
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*/
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#define MLD_V2_GENERAL_QUERY 1
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#define MLD_V2_GROUP_QUERY 2
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#define MLD_V2_GROUP_SOURCE_QUERY 3
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/*
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* Maximum report interval for MLDv1 host membership reports.
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*/
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#define MLD_V1_MAX_RI 10
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/*
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* MLD_TIMER_SCALE denotes that the MLD code field specifies
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* time in milliseconds.
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*/
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#define MLD_TIMER_SCALE 1000
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#endif /* _NETINET6_MLD6_H_ */
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