WifiPsdu stores an MPDU, S-MPDU or A-MPDU, by keeping header(s) and payload(s) separate for each constituent MPDU. More...

#include "wifi-psdu.h"

Inheritance diagram for ns3::WifiPsdu:

Collaboration diagram for ns3::WifiPsdu:

Public Member Functions
	WifiPsdu (Ptr< const Packet > p, const WifiMacHeader &header)
	Create a PSDU storing an MPDU.

	WifiPsdu (Ptr< const WifiMpdu > mpdu, bool isSingle)
	Create a PSDU storing an MPDU or S-MPDU.

	WifiPsdu (Ptr< WifiMpdu > mpdu, bool isSingle)
	Create a PSDU storing an MPDU or S-MPDU.

	WifiPsdu (std::vector< Ptr< WifiMpdu > > mpduList)
	Create a PSDU storing an S-MPDU or A-MPDU.

virtual	~WifiPsdu ()

std::vector< Ptr< WifiMpdu > >::iterator	begin ()
	Return an iterator to the first MPDU.

std::vector< Ptr< WifiMpdu > >::const_iterator	begin () const
	Return a const iterator to the first MPDU.

std::vector< Ptr< WifiMpdu > >::iterator	end ()
	Return an iterator to past-the-last MPDU.

std::vector< Ptr< WifiMpdu > >::const_iterator	end () const
	Return a const iterator to past-the-last MPDU.

WifiMacHeader::QosAckPolicy	GetAckPolicyForTid (uint8_t tid) const
	Get the QoS Ack Policy of the QoS Data frames included in the PSDU that have the given TID.

Mac48Address	GetAddr1 () const
	Get the Receiver Address (RA), which is common to all the MPDUs.

Mac48Address	GetAddr2 () const
	Get the Transmitter Address (TA), which is common to all the MPDUs.

Ptr< Packet >	GetAmpduSubframe (std::size_t i) const
	Get a copy of the i-th A-MPDU subframe (includes subframe header, MPDU, and possibly padding)

std::size_t	GetAmpduSubframeSize (std::size_t i) const
	Return the size of the i-th A-MPDU subframe.

Time	GetDuration () const
	Get the duration from the Duration/ID field, which is common to all the MPDUs.

WifiMacHeader &	GetHeader (std::size_t i)
	Get the header of the i-th MPDU.

const WifiMacHeader &	GetHeader (std::size_t i) const
	Get the header of the i-th MPDU.

uint16_t	GetMaxDistFromStartingSeq (uint16_t startingSeq) const
	Get the maximum distance between the sequence number of any QoS Data frame included in this PSDU that is not an old frame and the given starting sequence number.

std::size_t	GetNMpdus () const
	Return the number of MPDUs constituting the PSDU.

Ptr< const Packet >	GetPacket () const
	Get the PSDU as a single packet.

Ptr< const Packet >	GetPayload (std::size_t i) const
	Get the payload of the i-th MPDU.

uint32_t	GetSize () const
	Return the size of the PSDU in bytes.

std::set< uint8_t >	GetTids () const
	Get the set of TIDs of the QoS Data frames included in the PSDU.

bool	HasNav () const

bool	IsAggregate () const
	Return true if the PSDU is an S-MPDU or A-MPDU.

bool	IsSingle () const
	Return true if the PSDU is an S-MPDU.

void	Print (std::ostream &os) const
	Print the PSDU contents.

void	SetAckPolicyForTid (uint8_t tid, WifiMacHeader::QosAckPolicy policy)
	Set the QoS Ack Policy of the QoS Data frames included in the PSDU that have the given TID to the given policy.

void	SetDuration (Time duration)
	Set the Duration/ID field on all the MPDUs.

Public Member Functions inherited from ns3::SimpleRefCount< WifiPsdu >
	SimpleRefCount ()
	Default constructor.

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

uint32_t	GetReferenceCount () const
	Get the reference count of the object.

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator.

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

Private Attributes
bool	m_isSingle
	true for an S-MPDU

std::vector< Ptr< WifiMpdu > >	m_mpduList
	list of constituent MPDUs

uint32_t	m_size
	the size of the PSDU in bytes

Detailed Description

WifiPsdu stores an MPDU, S-MPDU or A-MPDU, by keeping header(s) and payload(s) separate for each constituent MPDU.

Definition at line 42 of file wifi-psdu.h.

Constructor & Destructor Documentation

◆ WifiPsdu() [1/4]

ns3::WifiPsdu::WifiPsdu	(	Ptr< const Packet >	p,
		const WifiMacHeader &	header
	)

Create a PSDU storing an MPDU.

Typically used for control and management frames that do not have to keep an associated lifetime and are not stored in an S-MPDU.

Parameters

p	the payload of the MPDU.
header	the Wifi MAC header of the MPDU.

Definition at line 35 of file wifi-psdu.cc.

References ns3::WifiMacHeader::GetSerializedSize(), m_mpduList, m_size, and ns3::WIFI_MAC_FCS_LENGTH.

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◆ WifiPsdu() [2/4]

ns3::WifiPsdu::WifiPsdu	(	Ptr< WifiMpdu >	mpdu,
		bool	isSingle
	)

Create a PSDU storing an MPDU or S-MPDU.

Typically used for QoS data frames that have to keep an associated lifetime.

Parameters

mpdu	the MPDU.
isSingle	true for an S-MPDU

Definition at line 42 of file wifi-psdu.cc.

References m_mpduList, and m_size.

◆ WifiPsdu() [3/4]

ns3::WifiPsdu::WifiPsdu	(	Ptr< const WifiMpdu >	mpdu,
		bool	isSingle
	)

Create a PSDU storing an MPDU or S-MPDU.

Typically used for QoS data frames that have to keep an associated lifetime.

Parameters

mpdu	the MPDU.
isSingle	true for an S-MPDU

◆ WifiPsdu() [4/4]

ns3::WifiPsdu::WifiPsdu ( std::vector< Ptr< WifiMpdu > > mpduList )

Create a PSDU storing an S-MPDU or A-MPDU.

Parameters

mpduList the list of constituent MPDUs.

Definition at line 59 of file wifi-psdu.cc.

References ns3::MpduAggregator::GetSizeIfAggregated(), m_mpduList, m_size, and NS_ABORT_MSG_IF.

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◆ ~WifiPsdu()

ns3::WifiPsdu::~WifiPsdu ( )

virtual

Definition at line 72 of file wifi-psdu.cc.

Member Function Documentation

◆ begin() [1/2]

std::vector< Ptr< WifiMpdu > >::iterator ns3::WifiPsdu::begin ( )

Return an iterator to the first MPDU.

Returns: an iterator to the first MPDU.

Definition at line 339 of file wifi-psdu.cc.

References m_mpduList.

◆ begin() [2/2]

std::vector< Ptr< WifiMpdu > >::const_iterator ns3::WifiPsdu::begin ( ) const

Return a const iterator to the first MPDU.

Returns: a const iterator to the first MPDU.

Definition at line 333 of file wifi-psdu.cc.

References m_mpduList.

Referenced by ns3::HtFrameExchangeManager::SendPsdu().

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◆ end() [1/2]

std::vector< Ptr< WifiMpdu > >::iterator ns3::WifiPsdu::end ( )

Return an iterator to past-the-last MPDU.

Returns: an iterator to past-the-last MPDU.

Definition at line 351 of file wifi-psdu.cc.

References m_mpduList.

Referenced by grid.TimelinesRenderer::draw_events(), and grid.TimelinesRenderer::draw_ranges().

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◆ end() [2/2]

std::vector< Ptr< WifiMpdu > >::const_iterator ns3::WifiPsdu::end ( ) const

Return a const iterator to past-the-last MPDU.

Returns: a const iterator to past-the-last MPDU.

Definition at line 345 of file wifi-psdu.cc.

References m_mpduList.

Referenced by grid.TimelinesRenderer::draw_events(), and grid.TimelinesRenderer::draw_ranges().

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◆ GetAckPolicyForTid()

WifiMacHeader::QosAckPolicy ns3::WifiPsdu::GetAckPolicyForTid ( uint8_t tid ) const

Get the QoS Ack Policy of the QoS Data frames included in the PSDU that have the given TID.

Also, check that all the QoS Data frames having the given TID have the same QoS Ack Policy. Do not call this method if there is no QoS Date frame in the PSDU.

Parameters

tid	the given TID

Returns: the QoS Ack Policy common to all QoS Data frames having the given TID.

Definition at line 192 of file wifi-psdu.cc.

References m_mpduList, NS_ABORT_MSG, NS_ABORT_MSG_IF, and NS_LOG_FUNCTION.

Referenced by ns3::HtFrameExchangeManager::SendPsdu().

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◆ GetAddr1()

Mac48Address ns3::WifiPsdu::GetAddr1 ( ) const

Get the Receiver Address (RA), which is common to all the MPDUs.

Returns: the Receiver Address.

Definition at line 113 of file wifi-psdu.cc.

References m_mpduList, and NS_ABORT_MSG.

Referenced by ns3::HtFrameExchangeManager::ReceiveMpdu(), and ns3::HtFrameExchangeManager::SendPsdu().

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◆ GetAddr2()

Mac48Address ns3::WifiPsdu::GetAddr2 ( ) const

Get the Transmitter Address (TA), which is common to all the MPDUs.

Returns: the Transmitter Address.

Definition at line 128 of file wifi-psdu.cc.

References m_mpduList, and NS_ABORT_MSG.

◆ GetAmpduSubframe()

Ptr< Packet > ns3::WifiPsdu::GetAmpduSubframe ( std::size_t i ) const

Get a copy of the i-th A-MPDU subframe (includes subframe header, MPDU, and possibly padding)

Parameters

i	the index in the list of A-MPDU subframes

Returns: the i-th A-MPDU subframe.

Definition at line 297 of file wifi-psdu.cc.

References ns3::MpduAggregator::GetAmpduSubframeHeader(), GetAmpduSubframeSize(), m_isSingle, m_mpduList, and NS_ASSERT.

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◆ GetAmpduSubframeSize()

std::size_t ns3::WifiPsdu::GetAmpduSubframeSize ( std::size_t i ) const

Return the size of the i-th A-MPDU subframe.

Parameters

i	the index in the list of A-MPDU subframes

Returns: the size of the i-th A-MPDU subframe.

Definition at line 314 of file wifi-psdu.cc.

References ns3::MpduAggregator::CalculatePadding(), m_mpduList, and NS_ASSERT.

Referenced by GetAmpduSubframe().

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◆ GetDuration()

Time ns3::WifiPsdu::GetDuration ( ) const

Get the duration from the Duration/ID field, which is common to all the MPDUs.

Returns: the duration from the Duration/ID field.

Definition at line 153 of file wifi-psdu.cc.

References m_mpduList, and NS_ABORT_MSG.

◆ GetHeader() [1/2]

WifiMacHeader & ns3::WifiPsdu::GetHeader ( std::size_t i )

Get the header of the i-th MPDU.

Parameters

i	index in the list of MPDUs

Returns: the header of the i-th MPDU.

Definition at line 285 of file wifi-psdu.cc.

References m_mpduList.

◆ GetHeader() [2/2]

const WifiMacHeader & ns3::WifiPsdu::GetHeader ( std::size_t i ) const

Get the header of the i-th MPDU.

Parameters

i	index in the list of MPDUs

Returns: the header of the i-th MPDU.

Definition at line 279 of file wifi-psdu.cc.

References m_mpduList.

Referenced by ns3::HtFrameExchangeManager::ReceiveMpdu(), and WifiPrimaryChannelsTest::SendHeTbPpdu().

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◆ GetMaxDistFromStartingSeq()

uint16_t ns3::WifiPsdu::GetMaxDistFromStartingSeq ( uint16_t startingSeq ) const

Get the maximum distance between the sequence number of any QoS Data frame included in this PSDU that is not an old frame and the given starting sequence number.

If this PSDU does not contain any QoS Data frame that is not an old frame, an invalid distance (4096) is returned.

Parameters

startingSeq the given starting sequence number.

Returns: the maximum distance between the sequence numbers included in the PSDU and the given starting sequence number

Definition at line 239 of file wifi-psdu.cc.

References m_mpduList, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosUtilsIsOldPacket(), and ns3::SEQNO_SPACE_SIZE.

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◆ GetNMpdus()

std::size_t ns3::WifiPsdu::GetNMpdus ( ) const

Return the number of MPDUs constituting the PSDU.

Returns: the number of MPDUs constituting the PSDU.

Definition at line 327 of file wifi-psdu.cc.

References m_mpduList.

Referenced by Print(), ns3::HtFrameExchangeManager::ReceiveMpdu(), and ns3::HtFrameExchangeManager::SendPsdu().

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◆ GetPacket()

Ptr< const Packet > ns3::WifiPsdu::GetPacket ( ) const

Get the PSDU as a single packet.

Returns: the PSDU.

Definition at line 89 of file wifi-psdu.cc.

References ns3::AddWifiMacTrailer(), ns3::MpduAggregator::Aggregate(), m_isSingle, and m_mpduList.

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◆ GetPayload()

Ptr< const Packet > ns3::WifiPsdu::GetPayload ( std::size_t i ) const

Get the payload of the i-th MPDU.

Parameters

i	index in the list of MPDUs

Returns: the payload of the i-th MPDU.

Definition at line 291 of file wifi-psdu.cc.

References m_mpduList.

◆ GetSize()

uint32_t ns3::WifiPsdu::GetSize ( ) const

Return the size of the PSDU in bytes.

Returns: the size of the PSDU.

Definition at line 273 of file wifi-psdu.cc.

References m_size.

Referenced by WifiPrimaryChannelsTest::DoSetup(), and ns3::HtFrameExchangeManager::SendPsdu().

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◆ GetTids()

std::set< uint8_t > ns3::WifiPsdu::GetTids ( ) const

Get the set of TIDs of the QoS Data frames included in the PSDU.

Note that only single-TID A-MPDUs are currently supported, hence the returned set contains at most one TID value.

Returns: the set of TIDs of the QoS Data frames included in the PSDU.

Definition at line 178 of file wifi-psdu.cc.

References m_mpduList.

Referenced by ns3::HtFrameExchangeManager::SendPsdu().

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◆ HasNav()

bool ns3::WifiPsdu::HasNav ( ) const

Returns: true if the Duration/ID field contains a value for setting the NAV

Definition at line 143 of file wifi-psdu.cc.

References m_mpduList.

◆ IsAggregate()

bool ns3::WifiPsdu::IsAggregate ( ) const

Return true if the PSDU is an S-MPDU or A-MPDU.

Returns: true if the PSDU is an S-MPDU or A-MPDU.

Definition at line 83 of file wifi-psdu.cc.

References m_isSingle, and m_mpduList.

Referenced by Print().

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◆ IsSingle()

bool ns3::WifiPsdu::IsSingle ( ) const

Return true if the PSDU is an S-MPDU.

Returns: true if the PSDU is an S-MPDU.

Definition at line 77 of file wifi-psdu.cc.

References m_isSingle.

◆ Print()

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

Print the PSDU contents.

Parameters

os	output stream in which the data should be printed.

Definition at line 357 of file wifi-psdu.cc.

References GetNMpdus(), IsAggregate(), m_isSingle, m_mpduList, and m_size.

Referenced by ns3::operator<<().

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◆ SetAckPolicyForTid()

void ns3::WifiPsdu::SetAckPolicyForTid	(	uint8_t	tid,
		WifiMacHeader::QosAckPolicy	policy
	)

Set the QoS Ack Policy of the QoS Data frames included in the PSDU that have the given TID to the given policy.

Parameters

tid	the given TID
policy	the given QoS Ack policy

Definition at line 226 of file wifi-psdu.cc.

References m_mpduList, and NS_LOG_FUNCTION.

◆ SetDuration()

void ns3::WifiPsdu::SetDuration ( Time duration )

Set the Duration/ID field on all the MPDUs.

Parameters

duration the value for the Duration/ID field.

Definition at line 168 of file wifi-psdu.cc.

References m_mpduList, and NS_LOG_FUNCTION.

Referenced by ns3::HtFrameExchangeManager::SendPsdu().

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Member Data Documentation

◆ m_isSingle

bool ns3::WifiPsdu::m_isSingle

private

true for an S-MPDU

Definition at line 254 of file wifi-psdu.h.

Referenced by GetAmpduSubframe(), GetPacket(), IsAggregate(), IsSingle(), and Print().

◆ m_mpduList

std::vector<Ptr<WifiMpdu> > ns3::WifiPsdu::m_mpduList

private

list of constituent MPDUs

Definition at line 255 of file wifi-psdu.h.

Referenced by WifiPsdu(), begin(), end(), GetAckPolicyForTid(), GetAddr1(), GetAddr2(), GetAmpduSubframe(), GetAmpduSubframeSize(), GetDuration(), GetHeader(), GetMaxDistFromStartingSeq(), GetNMpdus(), GetPacket(), GetPayload(), GetTids(), HasNav(), IsAggregate(), Print(), SetAckPolicyForTid(), and SetDuration().

◆ m_size

uint32_t ns3::WifiPsdu::m_size

private

the size of the PSDU in bytes

Definition at line 256 of file wifi-psdu.h.

Referenced by WifiPsdu(), GetSize(), and Print().

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

src/wifi/model/wifi-psdu.h
src/wifi/model/wifi-psdu.cc

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ WifiPsdu() [1/4]

◆ WifiPsdu() [2/4]

◆ WifiPsdu() [3/4]

◆ WifiPsdu() [4/4]

◆ ~WifiPsdu()

Member Function Documentation

◆ begin() [1/2]

◆ begin() [2/2]

◆ end() [1/2]

◆ end() [2/2]

◆ GetAckPolicyForTid()

◆ GetAddr1()

◆ GetAddr2()

◆ GetAmpduSubframe()

◆ GetAmpduSubframeSize()

◆ GetDuration()

◆ GetHeader() [1/2]

◆ GetHeader() [2/2]

◆ GetMaxDistFromStartingSeq()

◆ GetNMpdus()

◆ GetPacket()

◆ GetPayload()

◆ GetSize()

◆ GetTids()

◆ HasNav()

◆ IsAggregate()

◆ IsSingle()

◆ Print()

◆ SetAckPolicyForTid()

◆ SetDuration()

Member Data Documentation

◆ m_isSingle

◆ m_mpduList

◆ m_size