Headers for BlockAck response. More...

#include "ctrl-headers.h"

Inheritance diagram for ns3::CtrlBAckResponseHeader:

Collaboration diagram for ns3::CtrlBAckResponseHeader:

Classes
struct	BaInfoInstance
	The following structure can hold the BA Information field for the Basic and Compressed variants, one instance of the {Per TID Info, Block Ack Starting Sequence Control, Block Ack Bitmap} subfields for the Multi-TID variant or one instance of the Per AID TID Info subfield for the Multi-STA variant (which includes the AID TID Info, Block Ack Starting Sequence Control and Block Ack Bitmap subfields). More...

Public Member Functions
	CtrlBAckResponseHeader ()

	~CtrlBAckResponseHeader ()

uint32_t	Deserialize (Buffer::Iterator start)

std::vector< uint32_t >	FindPerAidTidInfoWithAid (uint16_t aid) const
	For Multi-STA Block Acks, get the indices of the Per AID TID Info subfields carrying the given AID in the AID11 subfield. More...

bool	GetAckType (std::size_t index) const
	For Multi-STA Block Acks, get the Ack Type subfield of the Per AID TID Info subfield identified by the given index. More...

uint16_t	GetAid11 (std::size_t index) const
	For Multi-STA Block Acks, get the AID11 subfield of the Per AID TID Info subfield identified by the given index. More...

const std::vector< uint8_t > &	GetBitmap (std::size_t index=0) const
	Return a const reference to the bitmap from the BlockAck response header. More...

TypeId	GetInstanceTypeId (void) const
	Get the most derived TypeId for this Object. More...

std::size_t	GetNPerAidTidInfoSubfields (void) const
	For Multi-STA Block Acks, get the number of Per AID TID Info subfields included in this Block Ack. More...

uint32_t	GetSerializedSize (void) const

uint16_t	GetStartingSequence (std::size_t index=0) const
	For Block Ack variants other than Multi-STA Block Ack, get the starting sequence number. More...

uint16_t	GetStartingSequenceControl (std::size_t index=0) const
	Return the value of the Starting Sequence Control subfield. More...

uint8_t	GetTidInfo (std::size_t index=0) const
	For Block Ack variants other than Multi-STA Block Ack, get the TID_INFO subfield of the BA Control field. More...

BlockAckType	GetType (void) const
	Return the block ack type ID. More...

Mac48Address	GetUnassociatedStaAddress (std::size_t index) const
	For Multi-STA Block Acks, get the RA subfield of the Per AID TID Info subfield (with AID11 subfield equal to 2045) identified by the given index to the given MAC address. More...

bool	IsBasic (void) const
	Check if the current BA policy is Basic Block Ack. More...

bool	IsCompressed (void) const
	Check if the current BA policy is Compressed Block Ack. More...

bool	IsExtendedCompressed (void) const
	Check if the current BA policy is Extended Compressed Block Ack. More...

bool	IsFragmentReceived (uint16_t seq, uint8_t frag) const
	Check if the packet with the given sequence number and fragment number was acknowledged in this BlockAck response. More...

bool	IsMultiSta (void) const
	Check if the BlockAck frame variant is Multi-STA Block Ack. More...

bool	IsMultiTid (void) const
	Check if the current BA policy is Multi-TID Block Ack. More...

bool	IsPacketReceived (uint16_t seq, std::size_t index=0) const
	Check if the packet with the given sequence number was acknowledged in this BlockAck response. More...

bool	MustSendHtImmediateAck (void) const
	Check if the current Ack Policy is immediate. More...

void	Print (std::ostream &os) const

void	ResetBitmap (std::size_t index=0)
	Reset the bitmap to 0. More...

void	Serialize (Buffer::Iterator start) const

void	SetAckType (bool type, std::size_t index)
	For Multi-STA Block Acks, set the Ack Type subfield of the Per AID TID Info subfield identified by the given index to the given value. More...

void	SetAid11 (uint16_t aid, std::size_t index)
	For Multi-STA Block Acks, set the AID11 subfield of the Per AID TID Info subfield identified by the given index to the given value. More...

void	SetHtImmediateAck (bool immediateAck)
	Enable or disable HT immediate Ack. More...

void	SetReceivedFragment (uint16_t seq, uint8_t frag)
	Set the bitmap that the packet with the given sequence number and fragment number was received. More...

void	SetReceivedPacket (uint16_t seq, std::size_t index=0)
	Record in the bitmap that the packet with the given sequence number was received. More...

void	SetStartingSequence (uint16_t seq, std::size_t index=0)
	For Block Ack variants other than Multi-STA Block Ack, set the starting sequence number to the given value. More...

void	SetStartingSequenceControl (uint16_t seqControl, std::size_t index=0)
	Set the Starting Sequence Control subfield with the given sequence control value. More...

void	SetTidInfo (uint8_t tid, std::size_t index=0)
	For Block Ack variants other than Multi-STA Block Ack, set the TID_INFO subfield of the BA Control field. More...

void	SetType (BlockAckType type)
	Set the block ack type. More...

void	SetUnassociatedStaAddress (const Mac48Address &ra, std::size_t index)
	For Multi-STA Block Acks, set the RA subfield of the Per AID TID Info subfield (with AID11 subfield equal to 2045) identified by the given index to the given MAC address. More...

Public Member Functions inherited from ns3::Header
virtual	~Header ()

virtual uint32_t	Deserialize (Buffer::Iterator start)=0
	Deserialize the object from a buffer iterator. More...

virtual uint32_t	Deserialize (Buffer::Iterator start, Buffer::Iterator end)
	Deserialize the object from a buffer iterator. More...

Public Member Functions inherited from ns3::Chunk
virtual uint32_t	Deserialize (Buffer::Iterator start, Buffer::Iterator end)
	Deserialize the object from a buffer iterator. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful. More...

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising erros. More...

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful. More...

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors. More...

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context. More...

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context. More...

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context. More...

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context. More...

Static Public Member Functions
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Header
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Chunk
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Private Member Functions
Buffer::Iterator	DeserializeBitmap (Buffer::Iterator start, std::size_t index=0)
	Deserialize bitmap from the given buffer. More...

uint16_t	GetBaControl (void) const
	Return the Block Ack control. More...

uint16_t	IndexInBitmap (uint16_t seq, std::size_t index=0) const
	This function is used to correctly index in both bitmap and compressed bitmap, one bit or one block of 16 bits respectively. More...

bool	IsInBitmap (uint16_t seq, std::size_t index=0) const
	Check if sequence number seq can be acknowledged in the bitmap. More...

Buffer::Iterator	SerializeBitmap (Buffer::Iterator start, std::size_t index=0) const
	Serialize bitmap to the given buffer. More...

void	SetBaControl (uint16_t ba)
	Set the Block Ack control. More...

Private Attributes
bool	m_baAckPolicy
	The LSB bit of the BA control field is used only for the HT (High Throughput) delayed block ack configuration. More...

std::vector< BaInfoInstance >	m_baInfo
	BA Information field. More...

BlockAckType	m_baType
	BA type. More...

uint16_t	m_tidInfo
	TID info (reserved if Multi-STA Block Ack) More...

Additional Inherited Members
Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes. More...

virtual void	NotifyConstructionCompleted (void)
	Notifier called once the ObjectBase is fully constructed. More...

Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid (void)
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More...

Detailed Description

Headers for BlockAck response.

Introspection did not find any typical Config paths.

802.11n standard includes three types of BlockAck:

Basic BlockAck (unique type in 802.11e)
Compressed BlockAck
Multi-TID BlockAck For now only basic BlockAck and compressed BlockAck are supported. Basic BlockAck is also default variant.

No Attributes are defined for this type.
No TraceSources are defined for this type.
Size of this type is 80 bytes (on a 64-bit architecture).

Definition at line 201 of file ctrl-headers.h.

Constructor & Destructor Documentation

◆ CtrlBAckResponseHeader()

ns3::CtrlBAckResponseHeader::CtrlBAckResponseHeader ( )

Definition at line 275 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, and SetType().

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◆ ~CtrlBAckResponseHeader()

ns3::CtrlBAckResponseHeader::~CtrlBAckResponseHeader ( )

Definition at line 282 of file ctrl-headers.cc.

Member Function Documentation

◆ Deserialize()

uint32_t ns3::CtrlBAckResponseHeader::Deserialize ( Buffer::Iterator start )

virtual

Parameters

start an iterator which points to where the header should read from.

Returns: the number of bytes read.

This method is used by Packet::RemoveHeader to re-create a header from the byte buffer of a packet. The data read is expected to match bit-for-bit the representation of this header in real networks.

Note that data is not actually removed from the buffer to which the iterator points. Both Packet::RemoveHeader() and Packet::PeekHeader() call Deserialize(), but only the RemoveHeader() has additional statements to remove the header bytes from the underlying buffer and associated metadata.

Implements ns3::Header.

Definition at line 394 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, DeserializeBitmap(), ns3::BlockAckType::EXTENDED_COMPRESSED, GetAckType(), GetAid11(), ns3::Buffer::Iterator::GetDistanceFrom(), ns3::Buffer::Iterator::GetRemainingSize(), GetTidInfo(), m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_FATAL_ERROR, ns3::ReadFrom(), ns3::Buffer::Iterator::ReadLsbtohU16(), ns3::Buffer::Iterator::ReadLsbtohU32(), SetBaControl(), SetStartingSequenceControl(), and visualizer.core::start().

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◆ DeserializeBitmap()

Buffer::Iterator ns3::CtrlBAckResponseHeader::DeserializeBitmap	(	Buffer::Iterator	start,
		std::size_t	index = `0`
	)

private

Deserialize bitmap from the given buffer.

For Multi-STA Block Acks, index identifies the Per AID TID Info subfield whose bitmap has to be deserialized.

Parameters

start	iterator pointing to the beginning of the buffer to read from.
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: Buffer::Iterator to the next available buffer

Definition at line 847 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_ASSERT, NS_ASSERT_MSG, NS_FATAL_ERROR, ns3::Buffer::Iterator::ReadU8(), and visualizer.core::start().

Referenced by Deserialize().

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◆ FindPerAidTidInfoWithAid()

std::vector< uint32_t > ns3::CtrlBAckResponseHeader::FindPerAidTidInfoWithAid ( uint16_t aid ) const

For Multi-STA Block Acks, get the indices of the Per AID TID Info subfields carrying the given AID in the AID11 subfield.

Parameters

aid	the given AID

Returns: a vector containing the indices of the Per AID TID Info subfields carrying the given AID in the AID11 subfield

Definition at line 628 of file ctrl-headers.cc.

References GetAid11(), m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, and NS_ASSERT.

Referenced by ns3::HeFrameExchangeManager::ReceiveMpdu().

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◆ GetAckType()

bool ns3::CtrlBAckResponseHeader::GetAckType ( std::size_t index ) const

For Multi-STA Block Acks, get the Ack Type subfield of the Per AID TID Info subfield identified by the given index.

Parameters

index the index of the Per AID TID Info subfield

Returns: the Ack Type

Definition at line 597 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, and NS_ASSERT.

Referenced by OfdmaAckSequenceTest::CheckResults(), Deserialize(), MultiStaCtrlBAckResponseHeaderTest::DoRun(), IsPacketReceived(), ns3::BlockAckManager::NotifyGotBlockAck(), and ns3::HeFrameExchangeManager::ReceiveMpdu().

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◆ GetAid11()

uint16_t ns3::CtrlBAckResponseHeader::GetAid11 ( std::size_t index ) const

For Multi-STA Block Acks, get the AID11 subfield of the Per AID TID Info subfield identified by the given index.

Parameters

index the index of the Per AID TID Info subfield

Returns: the AID11 subfield

Definition at line 578 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, and NS_ASSERT.

Referenced by Deserialize(), MultiStaCtrlBAckResponseHeaderTest::DoRun(), FindPerAidTidInfoWithAid(), GetUnassociatedStaAddress(), Print(), Serialize(), and SetUnassociatedStaAddress().

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◆ GetBaControl()

uint16_t ns3::CtrlBAckResponseHeader::GetBaControl ( void ) const

private

Return the Block Ack control.

Returns: the Block Ack control

Definition at line 645 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, m_baAckPolicy, m_baType, m_tidInfo, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, and NS_FATAL_ERROR.

Referenced by Serialize().

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◆ GetBitmap()

const std::vector< uint8_t > & ns3::CtrlBAckResponseHeader::GetBitmap ( std::size_t index = 0 ) const

Return a const reference to the bitmap from the BlockAck response header.

For Multi-STA Block Acks, return a const reference to the bitmap included in the Per AID TID Info subfield identified by index.

Parameters

index the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: a const reference to the bitmap from the BlockAck response header

Definition at line 1052 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by MultiStaCtrlBAckResponseHeaderTest::DoRun(), and CtrlBAckResponseHeaderTest::DoRun().

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◆ GetInstanceTypeId()

TypeId ns3::CtrlBAckResponseHeader::GetInstanceTypeId ( void ) const

virtual

Get the most derived TypeId for this Object.

This method is typically implemented by ns3::Object::GetInstanceTypeId but some classes which derive from ns3::ObjectBase directly have to implement it themselves.

Returns: The TypeId associated to the most-derived type of this instance.

Implements ns3::ObjectBase.

Definition at line 298 of file ctrl-headers.cc.

References GetTypeId().

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◆ GetNPerAidTidInfoSubfields()

std::size_t ns3::CtrlBAckResponseHeader::GetNPerAidTidInfoSubfields ( void ) const

For Multi-STA Block Acks, get the number of Per AID TID Info subfields included in this Block Ack.

Returns: the number of Per AID TID Info subfields included in this Multi-STA Block Ack

Definition at line 621 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, and NS_ASSERT.

Referenced by OfdmaAckSequenceTest::CheckResults().

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◆ GetSerializedSize()

uint32_t ns3::CtrlBAckResponseHeader::GetSerializedSize ( void ) const

virtual

Returns: the expected size of the header.

This method is used by Packet::AddHeader to store a header into the byte buffer of a packet. This method should return the number of bytes which are needed to store the full header data by Serialize.

Implements ns3::Header.

Definition at line 322 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, m_baType, ns3::BlockAckType::m_bitmapLen, m_tidInfo, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, and NS_FATAL_ERROR.

Referenced by ns3::GetBlockAckSize().

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◆ GetStartingSequence()

uint16_t ns3::CtrlBAckResponseHeader::GetStartingSequence ( std::size_t index = 0 ) const

For Block Ack variants other than Multi-STA Block Ack, get the starting sequence number.

For Multi-STA Block Acks, get the starting sequence number in the Per AID TID Info subfield identified by the given index.

Parameters

index the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: the starting sequence number

Definition at line 530 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by MultiStaCtrlBAckResponseHeaderTest::DoRun(), and ns3::HeFrameExchangeManager::SendMultiStaBlockAck().

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◆ GetStartingSequenceControl()

uint16_t ns3::CtrlBAckResponseHeader::GetStartingSequenceControl ( std::size_t index = 0 ) const

Return the value of the Starting Sequence Control subfield.

For Multi-STA Block Acks, index identifies the Per AID TID Info subfield whose Starting Sequence Control subfield has to be returned.

Parameters

index the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: the value of the Starting Sequence Control subfield

Definition at line 714 of file ctrl-headers.cc.

References ns3::BlockAckType::COMPRESSED, m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by Serialize().

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◆ GetTidInfo()

uint8_t ns3::CtrlBAckResponseHeader::GetTidInfo ( std::size_t index = 0 ) const

For Block Ack variants other than Multi-STA Block Ack, get the TID_INFO subfield of the BA Control field.

For Multi-STA Block Acks, get the TID subfield of the AID TID Info subfield of the Per AID TID Info subfield identified by the given index.

Parameters

index the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: the Traffic ID

Definition at line 510 of file ctrl-headers.cc.

References m_baInfo, m_baType, m_tidInfo, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by OfdmaAckSequenceTest::CheckResults(), Deserialize(), MultiStaCtrlBAckResponseHeaderTest::DoRun(), ns3::GetTid(), IsPacketReceived(), ns3::BlockAckManager::NotifyGotBlockAck(), Print(), ns3::HeFrameExchangeManager::ReceiveMpdu(), and ns3::HtFrameExchangeManager::ReceiveMpdu().

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◆ GetType()

BlockAckType ns3::CtrlBAckResponseHeader::GetType ( void ) const

Return the block ack type ID.

Returns: type

Definition at line 471 of file ctrl-headers.cc.

References m_baType.

Referenced by MultiStaCtrlBAckResponseHeaderTest::DoRun().

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◆ GetTypeId()

TypeId ns3::CtrlBAckResponseHeader::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 287 of file ctrl-headers.cc.

References ns3::TypeId::SetParent().

Referenced by GetInstanceTypeId().

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◆ GetUnassociatedStaAddress()

Mac48Address ns3::CtrlBAckResponseHeader::GetUnassociatedStaAddress ( std::size_t index ) const

For Multi-STA Block Acks, get the RA subfield of the Per AID TID Info subfield (with AID11 subfield equal to 2045) identified by the given index to the given MAC address.

Parameters

index the index of the Per AID TID Info subfield

Returns: the MAC address stored in the RA subfield

Definition at line 613 of file ctrl-headers.cc.

References GetAid11(), m_baInfo, and NS_ASSERT.

Referenced by MultiStaCtrlBAckResponseHeaderTest::DoRun().

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◆ IndexInBitmap()

uint16_t ns3::CtrlBAckResponseHeader::IndexInBitmap	(	uint16_t	seq,
		std::size_t	index = `0`
	)		const

private

This function is used to correctly index in both bitmap and compressed bitmap, one bit or one block of 16 bits respectively.

for more details see 7.2.1.8 in IEEE 802.11n/D4.00

Parameters

seq	the sequence number
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: If we are using basic block ack, return value represents index of block of 16 bits for packet having sequence number equals to seq. If we are using compressed block ack, return value represents bit to set to 1 in the compressed bitmap to indicate that packet having sequence number equals to seq was correctly received.

Definition at line 1011 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, NS_ASSERT, and ns3::SEQNO_SPACE_SIZE.

Referenced by IsFragmentReceived(), IsPacketReceived(), SetReceivedFragment(), and SetReceivedPacket().

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◆ IsBasic()

bool ns3::CtrlBAckResponseHeader::IsBasic ( void ) const

Check if the current BA policy is Basic Block Ack.

Returns: true if the current BA policy is Basic Block Ack, false otherwise

Definition at line 540 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, m_baType, and ns3::BlockAckType::m_variant.

Referenced by ns3::RecipientBlockAckAgreement::FillBlockAckBitmap(), and ns3::BlockAckManager::NotifyGotBlockAck().

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◆ IsCompressed()

bool ns3::CtrlBAckResponseHeader::IsCompressed ( void ) const

Check if the current BA policy is Compressed Block Ack.

Returns: true if the current BA policy is Compressed Block Ack, false otherwise

Definition at line 546 of file ctrl-headers.cc.

References ns3::BlockAckType::COMPRESSED, m_baType, and ns3::BlockAckType::m_variant.

Referenced by ns3::RecipientBlockAckAgreement::FillBlockAckBitmap(), and ns3::BlockAckManager::NotifyGotBlockAck().

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◆ IsExtendedCompressed()

bool ns3::CtrlBAckResponseHeader::IsExtendedCompressed ( void ) const

Check if the current BA policy is Extended Compressed Block Ack.

Returns: true if the current BA policy is Extended Compressed Block Ack, false otherwise

Definition at line 552 of file ctrl-headers.cc.

References ns3::BlockAckType::EXTENDED_COMPRESSED, m_baType, and ns3::BlockAckType::m_variant.

Referenced by ns3::RecipientBlockAckAgreement::FillBlockAckBitmap(), and ns3::BlockAckManager::NotifyGotBlockAck().

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◆ IsFragmentReceived()

bool ns3::CtrlBAckResponseHeader::IsFragmentReceived	(	uint16_t	seq,
		uint8_t	frag
	)		const

Check if the packet with the given sequence number and fragment number was acknowledged in this BlockAck response.

Parameters

seq	the sequence number
frag	the fragment number

Returns: true if the packet with the given sequence number and sequence number was acknowledged in this BlockAck response, false otherwise

Definition at line 979 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, IndexInBitmap(), IsInBitmap(), m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_ASSERT, and NS_FATAL_ERROR.

Referenced by ns3::BlockAckManager::NotifyGotBlockAck().

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◆ IsInBitmap()

bool ns3::CtrlBAckResponseHeader::IsInBitmap	(	uint16_t	seq,
		std::size_t	index = `0`
	)		const

private

Check if sequence number seq can be acknowledged in the bitmap.

For Multi-STA Block Acks, check if sequence number seq can be acknowledged in the bitmap included in the Per AID TID Info subfield identified by index.

Parameters

seq	the sequence number
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: true if the sequence number is concerned by the bitmap

Definition at line 1035 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, NS_ASSERT_MSG, and ns3::SEQNO_SPACE_SIZE.

Referenced by IsFragmentReceived(), IsPacketReceived(), SetReceivedFragment(), and SetReceivedPacket().

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◆ IsMultiSta()

bool ns3::CtrlBAckResponseHeader::IsMultiSta ( void ) const

Check if the BlockAck frame variant is Multi-STA Block Ack.

Returns: true if the BlockAck frame variant is Multi-STA Block Ack, false otherwise

Definition at line 564 of file ctrl-headers.cc.

References m_baType, ns3::BlockAckType::m_variant, and ns3::BlockAckType::MULTI_STA.

Referenced by OfdmaAckSequenceTest::CheckResults(), ns3::RecipientBlockAckAgreement::FillBlockAckBitmap(), ns3::BlockAckManager::NotifyGotBlockAck(), and ns3::HeFrameExchangeManager::ReceiveMpdu().

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◆ IsMultiTid()

bool ns3::CtrlBAckResponseHeader::IsMultiTid ( void ) const

Check if the current BA policy is Multi-TID Block Ack.

Returns: true if the current BA policy is Multi-TID Block Ack, false otherwise

Definition at line 558 of file ctrl-headers.cc.

References m_baType, ns3::BlockAckType::m_variant, and ns3::BlockAckType::MULTI_TID.

Referenced by ns3::RecipientBlockAckAgreement::FillBlockAckBitmap(), and ns3::BlockAckManager::NotifyGotBlockAck().

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◆ IsPacketReceived()

bool ns3::CtrlBAckResponseHeader::IsPacketReceived	(	uint16_t	seq,
		std::size_t	index = `0`
	)		const

Check if the packet with the given sequence number was acknowledged in this BlockAck response.

For Multi-STA Block Acks, index identifies the Per AID TID Info subfield whose bitmap has to be checked.

Parameters

seq	the sequence number to be checked
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: true if the packet with the given sequence number was ACKed in this BlockAck response, false otherwise

Definition at line 939 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, GetAckType(), GetTidInfo(), IndexInBitmap(), IsInBitmap(), m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_ASSERT, NS_ASSERT_MSG, and NS_FATAL_ERROR.

Referenced by CtrlBAckResponseHeaderTest::DoRun(), and ns3::BlockAckManager::NotifyGotBlockAck().

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◆ MustSendHtImmediateAck()

bool ns3::CtrlBAckResponseHeader::MustSendHtImmediateAck ( void ) const

Check if the current Ack Policy is immediate.

Returns: true if the current Ack Policy is immediate, false otherwise

Definition at line 504 of file ctrl-headers.cc.

References m_baAckPolicy.

◆ Print()

void ns3::CtrlBAckResponseHeader::Print ( std::ostream & os ) const

virtual

Parameters

os output stream This method is used by Packet::Print to print the content of a header as ascii data to a c++ output stream. Although the header is free to format its output as it wishes, it is recommended to follow a few rules to integrate with the packet pretty printer: start with flags, small field values located between a pair of parens. Values should be separated by whitespace. Follow the parens with the important fields, separated by whitespace. i.e.: (field1 val1 field2 val2 field3 val3) field4 val4 field5 val5

Implements ns3::Header.

Definition at line 304 of file ctrl-headers.cc.

References GetAid11(), GetTidInfo(), m_baInfo, m_baType, m_tidInfo, ns3::BlockAckType::m_variant, and ns3::BlockAckType::MULTI_STA.

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◆ ResetBitmap()

void ns3::CtrlBAckResponseHeader::ResetBitmap ( std::size_t index = 0 )

Reset the bitmap to 0.

For Multi-STA Block Acks, reset the bitmap included in the Per AID TID Info subfield identified by index.

Parameters

index the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Definition at line 1062 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by CtrlBAckResponseHeaderTest::DoRun(), and ns3::RecipientBlockAckAgreement::FillBlockAckBitmap().

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◆ Serialize()

void ns3::CtrlBAckResponseHeader::Serialize ( Buffer::Iterator start ) const

virtual

Parameters

start an iterator which points to where the header should be written.

This method is used by Packet::AddHeader to store a header into the byte buffer of a packet. The data written is expected to match bit-for-bit the representation of this header in a real network.

Implements ns3::Header.

Definition at line 352 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, GetAid11(), GetBaControl(), GetStartingSequenceControl(), m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_FATAL_ERROR, SerializeBitmap(), visualizer.core::start(), ns3::Buffer::Iterator::WriteHtolsbU16(), ns3::Buffer::Iterator::WriteHtolsbU32(), and ns3::WriteTo().

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◆ SerializeBitmap()

Buffer::Iterator ns3::CtrlBAckResponseHeader::SerializeBitmap	(	Buffer::Iterator	start,
		std::size_t	index = `0`
	)		const

private

Serialize bitmap to the given buffer.

For Multi-STA Block Acks, index identifies the Per AID TID Info subfield whose bitmap has to be serialized.

Parameters

start	iterator pointing to the beginning of the buffer to write into.
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Returns: Buffer::Iterator to the next available buffer

Definition at line 818 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_ASSERT, NS_ASSERT_MSG, NS_FATAL_ERROR, visualizer.core::start(), and ns3::Buffer::Iterator::WriteU8().

Referenced by Serialize().

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◆ SetAckType()

void ns3::CtrlBAckResponseHeader::SetAckType	(	bool	type,
		std::size_t	index
	)

For Multi-STA Block Acks, set the Ack Type subfield of the Per AID TID Info subfield identified by the given index to the given value.

Parameters

type	the ack type value
index	the index of the Per AID TID Info subfield

Definition at line 586 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, and NS_ASSERT.

Referenced by ns3::HeFrameExchangeManager::SendMultiStaBlockAck().

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◆ SetAid11()

void ns3::CtrlBAckResponseHeader::SetAid11	(	uint16_t	aid,
		std::size_t	index
	)

For Multi-STA Block Acks, set the AID11 subfield of the Per AID TID Info subfield identified by the given index to the given value.

Parameters

aid	the AID11 value
index	the index of the Per AID TID Info subfield

Definition at line 570 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, and NS_ASSERT.

Referenced by ns3::HeFrameExchangeManager::SendMultiStaBlockAck().

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◆ SetBaControl()

void ns3::CtrlBAckResponseHeader::SetBaControl ( uint16_t ba )

private

Set the Block Ack control.

Parameters

ba	the BA control to set

Definition at line 680 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, m_baAckPolicy, m_baType, m_tidInfo, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_FATAL_ERROR, and SetType().

Referenced by Deserialize().

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◆ SetHtImmediateAck()

void ns3::CtrlBAckResponseHeader::SetHtImmediateAck ( bool immediateAck )

Enable or disable HT immediate Ack.

Parameters

immediateAck enable or disable HT immediate Ack

Definition at line 450 of file ctrl-headers.cc.

References m_baAckPolicy.

◆ SetReceivedFragment()

void ns3::CtrlBAckResponseHeader::SetReceivedFragment	(	uint16_t	seq,
		uint8_t	frag
	)

Set the bitmap that the packet with the given sequence number and fragment number was received.

Parameters

seq	the sequence number
frag	the fragment number

Definition at line 911 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, IndexInBitmap(), IsInBitmap(), m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_ASSERT, and NS_FATAL_ERROR.

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◆ SetReceivedPacket()

void ns3::CtrlBAckResponseHeader::SetReceivedPacket	(	uint16_t	seq,
		std::size_t	index = `0`
	)

Record in the bitmap that the packet with the given sequence number was received.

For Multi-STA Block Acks, index identifies the Per AID TID Info subfield whose bitmap has to be updated.

Parameters

seq	the sequence number of the received packet
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Definition at line 876 of file ctrl-headers.cc.

References ns3::BlockAckType::BASIC, ns3::BlockAckType::COMPRESSED, ns3::BlockAckType::EXTENDED_COMPRESSED, IndexInBitmap(), IsInBitmap(), m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, ns3::BlockAckType::MULTI_TID, NS_ASSERT, NS_ASSERT_MSG, and NS_FATAL_ERROR.

Referenced by CtrlBAckResponseHeaderTest::DoRun(), and ns3::RecipientBlockAckAgreement::FillBlockAckBitmap().

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◆ SetStartingSequence()

void ns3::CtrlBAckResponseHeader::SetStartingSequence	(	uint16_t	seq,
		std::size_t	index = `0`
	)

For Block Ack variants other than Multi-STA Block Ack, set the starting sequence number to the given value.

For Multi-STA Block Acks, set the starting sequence number in the Per AID TID Info subfield identified by the given index to the given value.

Parameters

seq	the starting sequence number
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Definition at line 494 of file ctrl-headers.cc.

References m_baInfo, m_baType, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by CtrlBAckResponseHeaderTest::DoRun(), and ns3::RecipientBlockAckAgreement::FillBlockAckBitmap().

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◆ SetStartingSequenceControl()

void ns3::CtrlBAckResponseHeader::SetStartingSequenceControl	(	uint16_t	seqControl,
		std::size_t	index = `0`
	)

Set the Starting Sequence Control subfield with the given sequence control value.

For Multi-STA Block Acks, index identifies the Per AID TID Info subfield whose Starting Sequence Control subfield has to be set.

Parameters

seqControl	the raw sequence control value
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Definition at line 755 of file ctrl-headers.cc.

References ns3::BlockAckType::COMPRESSED, m_baInfo, m_baType, ns3::BlockAckType::m_bitmapLen, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, NS_ASSERT_MSG, NS_FATAL_ERROR, and SetType().

Referenced by Deserialize().

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◆ SetTidInfo()

void ns3::CtrlBAckResponseHeader::SetTidInfo	(	uint8_t	tid,
		std::size_t	index = `0`
	)

For Block Ack variants other than Multi-STA Block Ack, set the TID_INFO subfield of the BA Control field.

For Multi-STA Block Acks, set the TID subfield of the AID TID Info subfield of the Per AID TID Info subfield identified by the given index.

Parameters

tid	the traffic ID
index	the index of the Per AID TID Info subfield (Multi-STA Block Ack only)

Definition at line 477 of file ctrl-headers.cc.

References m_baInfo, m_baType, m_tidInfo, ns3::BlockAckType::m_variant, ns3::BlockAckType::MULTI_STA, NS_ASSERT, and NS_ASSERT_MSG.

Referenced by ns3::HtFrameExchangeManager::SendBlockAck(), and ns3::HeFrameExchangeManager::SendMultiStaBlockAck().

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◆ SetType()

void ns3::CtrlBAckResponseHeader::SetType ( BlockAckType type )

Set the block ack type.

Parameters

type	the BA type

Definition at line 456 of file ctrl-headers.cc.

References m_baInfo, m_baType, and ns3::BlockAckType::m_bitmapLen.

Referenced by CtrlBAckResponseHeader(), MultiStaCtrlBAckResponseHeaderTest::DoRun(), CtrlBAckResponseHeaderTest::DoRun(), ns3::GetBlockAckSize(), ns3::HtFrameExchangeManager::SendBlockAck(), ns3::HeFrameExchangeManager::SendMultiStaBlockAck(), SetBaControl(), and SetStartingSequenceControl().

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◆ SetUnassociatedStaAddress()

void ns3::CtrlBAckResponseHeader::SetUnassociatedStaAddress	(	const Mac48Address &	ra,
		std::size_t	index
	)

For Multi-STA Block Acks, set the RA subfield of the Per AID TID Info subfield (with AID11 subfield equal to 2045) identified by the given index to the given MAC address.

Parameters

ra	the MAC address
index	the index of the Per AID TID Info subfield

Definition at line 605 of file ctrl-headers.cc.

References GetAid11(), m_baInfo, and NS_ASSERT.

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Member Data Documentation

◆ m_baAckPolicy

bool ns3::CtrlBAckResponseHeader::m_baAckPolicy

private

The LSB bit of the BA control field is used only for the HT (High Throughput) delayed block ack configuration.

For now only non HT immediate block ack is implemented so this field is here only for a future implementation of HT delayed variant. BA Ack Policy

Definition at line 529 of file ctrl-headers.h.

Referenced by GetBaControl(), MustSendHtImmediateAck(), SetBaControl(), and SetHtImmediateAck().

◆ m_baInfo

std::vector<BaInfoInstance> ns3::CtrlBAckResponseHeader::m_baInfo

private

BA Information field.

Definition at line 552 of file ctrl-headers.h.

Referenced by Deserialize(), DeserializeBitmap(), FindPerAidTidInfoWithAid(), GetAckType(), GetAid11(), GetBitmap(), GetNPerAidTidInfoSubfields(), GetStartingSequence(), GetStartingSequenceControl(), GetTidInfo(), GetUnassociatedStaAddress(), IndexInBitmap(), IsFragmentReceived(), IsInBitmap(), IsPacketReceived(), Print(), ResetBitmap(), Serialize(), SerializeBitmap(), SetAckType(), SetAid11(), SetReceivedFragment(), SetReceivedPacket(), SetStartingSequence(), SetStartingSequenceControl(), SetTidInfo(), SetType(), and SetUnassociatedStaAddress().

◆ m_baType

BlockAckType ns3::CtrlBAckResponseHeader::m_baType

private

◆ m_tidInfo

uint16_t ns3::CtrlBAckResponseHeader::m_tidInfo

private

TID info (reserved if Multi-STA Block Ack)

Definition at line 531 of file ctrl-headers.h.

Referenced by GetBaControl(), GetSerializedSize(), GetTidInfo(), Print(), SetBaControl(), and SetTidInfo().

The documentation for this class was generated from the following files:

src/wifi/model/ctrl-headers.h
src/wifi/model/ctrl-headers.cc

Classes

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CtrlBAckResponseHeader()

◆ ~CtrlBAckResponseHeader()

Member Function Documentation

◆ Deserialize()

◆ DeserializeBitmap()

◆ FindPerAidTidInfoWithAid()

◆ GetAckType()

◆ GetAid11()

◆ GetBaControl()

◆ GetBitmap()

◆ GetInstanceTypeId()

◆ GetNPerAidTidInfoSubfields()

◆ GetSerializedSize()

◆ GetStartingSequence()

◆ GetStartingSequenceControl()

◆ GetTidInfo()

◆ GetType()

◆ GetTypeId()

◆ GetUnassociatedStaAddress()

◆ IndexInBitmap()

◆ IsBasic()

◆ IsCompressed()

◆ IsExtendedCompressed()

◆ IsFragmentReceived()

◆ IsInBitmap()

◆ IsMultiSta()

◆ IsMultiTid()

◆ IsPacketReceived()

◆ MustSendHtImmediateAck()

◆ Print()

◆ ResetBitmap()

◆ Serialize()

◆ SerializeBitmap()

◆ SetAckType()

◆ SetAid11()

◆ SetBaControl()

◆ SetHtImmediateAck()

◆ SetReceivedFragment()

◆ SetReceivedPacket()

◆ SetStartingSequence()

◆ SetStartingSequenceControl()

◆ SetTidInfo()

◆ SetType()

◆ SetUnassociatedStaAddress()

Member Data Documentation

◆ m_baAckPolicy

◆ m_baInfo

◆ m_baType

◆ m_tidInfo