Packet Ieee80211DataFrameWithSNAP

File: src/inet/linklayer/ieee80211/mac/Ieee80211Frame.msg

C++ definition

802.11 data frame with the 8-byte SNAP header (AA AA 03, 00 00 00, <2-byte EtherType>)

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.

Inheritance diagram:

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends:

Name	Type	Description
Ieee80211DataFrame	packet	Format of the 802.11 data frame

Fields:

Name	Type	Description
byteLength
etherType	int
type	short	type and subtype
address4	MACAddress	optional field, exists when toDS and fromDS are true
qos	uint16	TODO nobody uses this currently, only its parts like tid below...
ackPolicy	int	FIXME in real life this is part of the optional qos field above...
tid	uint8	FIXME in real life this is part of the optional qos field above...
aMsduPresent	bool	8.2.4.5.9 A-MSDU Present subfield FIXME in real life this is part of the optional qos field above...
address3	MACAddress
fragmentNumber	short
sequenceNumber	uint16
transmitterAddress	MACAddress	aka address2
toDS	bool
fromDS	bool
retry	bool
moreFragments	bool
duration	simtime_t	TODO: rename to durationField (levy)
AID	short	"id" (Association ID) in the Duration/ID field (-1=no ID)
receiverAddress	MACAddress	aka address1
MACArrive	simtime_t	FIXME remove it, technical data, used inside of MAC module

Source code:

//
// 802.11 data frame with the 8-byte SNAP header (AA AA 03, 00 00 00, <2-byte ~EtherType>)
//
packet Ieee80211DataFrameWithSNAP extends Ieee80211DataFrame
{
    byteLength = DATAFRAME_HEADER_MINLENGTH / 8 + SNAP_HEADER_BYTES; // TODO: LLC(SNAP) headers should be in a separate packet
    int etherType @enum(EtherType);
}