Ieee80211Delba¶

Namespace: inet

class Ieee80211Delba

8.5.5.4 DELBA frame format

Inheritance diagram¶

Extends¶

Name	Type	Description
Ieee80211ActionFrame	class	8.3.3.13 Action frame format – mgmt frame with subtype action

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	Ieee80211FrameType	type and subtype
toDS	bool
fromDS	bool
moreFragments	bool
retry	bool
powerMgmt	bool	unused
moreData	bool	unused
protectedFrame	bool	unused
order	bool	unused
durationField	simtime_t	“duration” in the Duration/ID field (-1=no duration)
AID	short	“id” (Association ID) in the Duration/ID field (-1=no ID)
receiverAddress	MacAddress	aka address1 (RA)
MACArrive	simtime_t	FIXME remove it, technical data, used inside of MAC module
chunkLength
transmitterAddress	MacAddress	aka address2 (TA)
chunkLength
address3	MacAddress
fragmentNumber	short
sequenceNumber	SequenceNumberCyclic
type
category	short
blockAckAction	uint8_t	TODO subclasses will add action subfield contents WirelessNetworkManagementAction action; // action TODO remove it
chunkLength
category		Category field is set to 3 (representing DELBA). (1 byte)
blockAckAction		Block Ack Action field is set to 2 (representing DELBA). (1 byte)
reserved	uint16_t	Reserved. (11 bits)
initiator	bool	It is set to 1 to indicate the originator and is set to 0 to indicate the recipient. The Initiator subfield indicates if the originator or the recipient of the data is sending this frame. (1 bit)
tid	uint8_t	The TID subfield indicates the TSID or the UP for which the Block Ack has been originally set up. (4 bits)
reasonCode	uint16_t	This Reason Code field is used to indicate the reason that an unsolicited notification management frame of type Disassociation, Deauthentication, DELTS, DELBA, DLS Teardown, or Mesh Peering Close was generated. (2 bytes)

Properties¶

Name	Value	Description
beforeChange	handleChange()
descriptor	readonly
existingClass
packetData

Source code¶

//
// 8.5.5.4 DELBA frame format
//
class Ieee80211Delba extends Ieee80211ActionFrame
{
    chunkLength = LENGTH_DELBA;
    category = 3; // Category field is set to 3 (representing DELBA). (1 byte)
    blockAckAction = 2; // Block Ack Action field is set to 2 (representing DELBA). (1 byte)

    // DELBA Parameter Set (2 bytes)
    uint16_t reserved = 0; // Reserved. (11 bits)
    bool initiator; // It is set to 1 to indicate the originator and is set to 0 to indicate the recipient.
                    // The Initiator subfield indicates if the originator or the recipient of the data is sending this frame. (1 bit)
    uint8_t tid; // The TID subfield indicates the TSID or the UP for which the Block Ack has been originally set up. (4 bits)

    // This Reason Code field is used to indicate the reason that an unsolicited notification management frame of
    // type Disassociation, Deauthentication, DELTS, DELBA, DLS Teardown, or Mesh Peering Close was
    // generated. (2 bytes)
    uint16_t reasonCode;
}

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