MldQuery¶

Namespace: inet

class MldQuery

MLDv1 Multicast Listener Query (RFC 2710, ICMPv6 type 130). General query: multicastAddress = :: Group-specific query: multicastAddress = group address

Inheritance diagram¶

Extends¶

Name	Type	Description
MldMessage	class	Base class for MLDv1 messages (RFC 2710). Carried as ICMPv6 type 130 (Query), 131 (Report), 132 (Done). Inherits type, chksum, and checksumMode from Icmpv6Header.

Fields¶

Name	Type	Description
id	int
mutable	bool
complete	bool
correct	bool
properlyRepresented	bool
chunkLength	b
rawBin	string[]
rawHex	string[]
regionTags	SharingRegionTagSet::TagBaseRegionTag[]
chunkLength
type	Icmpv6Type	1 byte int code; // 1 byte //TODO this should be specific to different ICMP types.
chksum	int	2 bytes
checksumMode	ChecksumMode	4 bytes ‘type’ specific values
code	int	always 0 for MLD (RFC 2710 §3)
maxRespDelay	uint16_t	Maximum Response Delay, ms (16 bits)
reserved	uint16_t	reserved (16 bits, must be 0)
multicastAddress	Ipv6Address	128-bit multicast group address
chunkLength		4 (type+code/checksum) + 2 (maxRespDelay) + 2 (reserved) + 16 (addr)
type		130

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

Source code¶

//
// MLDv1 Multicast Listener Query (RFC 2710, ICMPv6 type 130).
// General query: multicastAddress = ::
// Group-specific query: multicastAddress = group address
//
class MldQuery extends MldMessage
{
    chunkLength = B(24);        // 4 (type+code/checksum) + 2 (maxRespDelay) + 2 (reserved) + 16 (addr)
    type = ICMPv6_MLD_QUERY;   // 130
}

File: src/inet/networklayer/icmpv6/MldMessage.msg