Date: Wed, 29 Apr 2009 11:31:24 +0000 (UTC) From: Bruce M Simpson <bms@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r191666 - head/sys/netinet6 Message-ID: <200904291131.n3TBVOY0079464@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: bms Date: Wed Apr 29 11:31:23 2009 New Revision: 191666 URL: http://svn.freebsd.org/changeset/base/191666 Log: Add MLDv2 protocol header, but do not connect it to the build. Added: head/sys/netinet6/mld6.h (contents, props changed) Added: head/sys/netinet6/mld6.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/netinet6/mld6.h Wed Apr 29 11:31:23 2009 (r191666) @@ -0,0 +1,112 @@ +/*- + * 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 */ +} __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 */ +} __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 */ +} __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_ */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200904291131.n3TBVOY0079464>