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_ */
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