Header for the Transmission Control Protocol. More...

#include <tcp-header.h>

Inheritance diagram for ns3::TcpHeader:

Collaboration diagram for ns3::TcpHeader:

Public Types
enum	Flags_t { NONE = 0, FIN = 1, SYN = 2, RST = 4, PSH = 8, ACK = 16, URG = 32, ECE = 64, CWR = 128 }
	TCP flag field values. More...

Public Member Functions
	TcpHeader ()

virtual	~TcpHeader ()

bool	AppendOption (Ptr< TcpOption > option)
	Append an option to the TCP header. More...

virtual uint32_t	Deserialize (Buffer::Iterator start)

void	EnableChecksums (void)
	Enable checksum calculation for TCP. More...

SequenceNumber32	GetAckNumber () const
	Get the ACK number. More...

uint16_t	GetDestinationPort () const
	Get the destination port. More...

uint8_t	GetFlags () const
	Get the flags. More...

virtual TypeId	GetInstanceTypeId (void) const

uint8_t	GetLength () const
	Get the length in words. More...

Ptr< TcpOption >	GetOption (uint8_t kind) const
	Get the option specified. More...

SequenceNumber32	GetSequenceNumber () const
	Get the sequence number. More...

virtual uint32_t	GetSerializedSize (void) const

uint16_t	GetSourcePort () const
	Get the source port. More...

uint16_t	GetUrgentPointer () const
	Get the urgent pointer. More...

uint16_t	GetWindowSize () const
	Get the window size. More...

bool	HasOption (uint8_t kind) const
	Check if the header has the option specified. More...

void	InitializeChecksum (Ipv4Address source, Ipv4Address destination, uint8_t protocol)
	Initialize the TCP checksum. More...

void	InitializeChecksum (Ipv6Address source, Ipv6Address destination, uint8_t protocol)
	Initialize the TCP checksum. More...

void	InitializeChecksum (Address source, Address destination, uint8_t protocol)
	Initialize the TCP checksum. More...

bool	IsChecksumOk (void) const
	Is the TCP checksum correct ? More...

virtual void	Print (std::ostream &os) const

virtual void	Serialize (Buffer::Iterator start) const

void	SetAckNumber (SequenceNumber32 ackNumber)
	Set the ACK number. More...

void	SetDestinationPort (uint16_t port)
	Set the destination port. More...

void	SetFlags (uint8_t flags)
	Set flags of the header. More...

void	SetSequenceNumber (SequenceNumber32 sequenceNumber)
	Set the sequence Number. More...

void	SetSourcePort (uint16_t port)
	Set the source port. More...

void	SetUrgentPointer (uint16_t urgentPointer)
	Set the urgent pointer. More...

void	SetWindowSize (uint16_t windowSize)
	Set the window size. More...

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

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

void	GetAttribute (std::string name, AttributeValue &value) const

bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const

void	SetAttribute (std::string name, const AttributeValue &value)

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

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 Types
typedef std::list< Ptr < TcpOption > >	TcpOptionList
	List of TcpOption. More...

Private Member Functions
uint16_t	CalculateHeaderChecksum (uint16_t size) const
	Calculate the header checksum. More...

uint8_t	CalculateHeaderLength () const
	Calculates the header length (in words) More...

Private Attributes
SequenceNumber32	m_ackNumber
	ACK number. More...

bool	m_calcChecksum
	Flag to calculate checksum. More...

Address	m_destination
	Destination IP address. More...

uint16_t	m_destinationPort
	Destination port. More...

uint8_t	m_flags
	Flags (really a uint6_t) More...

bool	m_goodChecksum
	Flag to indicate that checksum is correct. More...

uint8_t	m_length
	Length (really a uint4_t) in words. More...

TcpOptionList	m_options
	TcpOption present in the header. More...

uint8_t	m_optionsLen
	Tcp options length. More...

uint8_t	m_protocol
	Protocol number. More...

SequenceNumber32	m_sequenceNumber
	Sequence number. More...

Address	m_source
	Source IP address. More...

uint16_t	m_sourcePort
	Source port. More...

uint16_t	m_urgentPointer
	Urgent pointer. More...

uint16_t	m_windowSize
	Window size. More...

Static Private Attributes
static const uint8_t	m_maxOptionsLen = 40
	Maximum options length. More...

Friends
bool	operator== (const TcpHeader &lhs, const TcpHeader &rhs)

Additional Inherited Members
Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)

virtual void	NotifyConstructionCompleted (void)
	This method is invoked once all member attributes have been initialized. More...

Detailed Description

Header for the Transmission Control Protocol.

Doxygen introspection did not find any typical Config paths.

This class has fields corresponding to those in a network TCP header (port numbers, sequence and acknowledgement numbers, flags, etc) as well as methods for serialization to and deserialization from a byte buffer.

No Attributes are defined for this type.
No TraceSources are defined for this type.

Definition at line 44 of file tcp-header.h.

Member Typedef Documentation

typedef std::list< Ptr<TcpOption> > ns3::TcpHeader::TcpOptionList

private

List of TcpOption.

Definition at line 299 of file tcp-header.h.

Member Enumeration Documentation

enum ns3::TcpHeader::Flags_t

TCP flag field values.

Enumerator
NONE	No flags.
FIN	FIN.
SYN	SYN.
RST	Reset.
PSH	Push.
ACK	Ack.
URG	Urgent.
ECE	ECE.
CWR	CWR.

Definition at line 232 of file tcp-header.h.

Constructor & Destructor Documentation

ns3::TcpHeader::TcpHeader ( )

Definition at line 35 of file tcp-header.cc.

ns3::TcpHeader::~TcpHeader ( )

virtual

Definition at line 50 of file tcp-header.cc.

Member Function Documentation

bool ns3::TcpHeader::AppendOption ( Ptr< TcpOption > option )

Append an option to the TCP header.

Parameters

option The option to append

Definition at line 453 of file tcp-header.cc.

References ns3::TcpOption::END, ns3::TcpOption::GetKind(), ns3::TcpOption::GetSerializedSize(), ns3::TcpOption::IsKindKnown(), m_length, m_maxOptionsLen, m_options, m_optionsLen, and NS_LOG_WARN.

Referenced by ns3::TcpSocketBase::AddOptionTimestamp(), ns3::TcpSocketBase::AddOptionWScale(), ns3::TcpHeaderWithRFC793OptionTestCase::CheckCorrectDeserialize(), ns3::TcpHeaderWithRFC793OptionTestCase::CheckNoPadding(), and ns3::TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime().

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uint16_t ns3::TcpHeader::CalculateHeaderChecksum ( uint16_t size ) const

private

Calculate the header checksum.

Parameters

size	packet size

Returns: the checksum

Definition at line 181 of file tcp-header.cc.

References ns3::Buffer::AddAtStart(), ns3::Buffer::Begin(), ns3::Buffer::Iterator::CalculateIpChecksum(), ns3::Ipv4Address::IsMatchingType(), m_destination, m_protocol, m_source, ns3::Address::MAX_SIZE, ns3::WriteTo(), ns3::Buffer::Iterator::WriteU16(), and ns3::Buffer::Iterator::WriteU8().

Referenced by Deserialize(), and Serialize().

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uint8_t ns3::TcpHeader::CalculateHeaderLength ( ) const

private

Calculates the header length (in words)

Given the standard size of the header, the method checks for options and calculates the real length (in words).

Returns: header length in 4-byte words

Definition at line 435 of file tcp-header.cc.

References m_options.

Referenced by Deserialize(), and GetSerializedSize().

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uint32_t ns3::TcpHeader::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 353 of file tcp-header.cc.

References CalculateHeaderChecksum(), CalculateHeaderLength(), ns3::TcpOption::CreateOption(), ns3::TcpOption::Deserialize(), ns3::TcpOption::END, ns3::TcpOption::GetKind(), ns3::TcpOption::GetSerializedSize(), GetSerializedSize(), ns3::Buffer::Iterator::GetSize(), ns3::TcpOption::IsKindKnown(), m_ackNumber, m_calcChecksum, m_destinationPort, m_flags, m_goodChecksum, m_length, m_options, m_sequenceNumber, m_sourcePort, m_urgentPointer, m_windowSize, ns3::Buffer::Iterator::Next(), NS_LOG_ERROR, NS_LOG_WARN, ns3::Buffer::Iterator::PeekU8(), ns3::Buffer::Iterator::ReadNtohU16(), ns3::Buffer::Iterator::ReadNtohU32(), visualizer.core::start(), and ns3::TcpOption::UNKNOWN.

Referenced by ns3::TcpHeaderWithRFC793OptionTestCase::CheckCorrectDeserialize(), ns3::TcpHeaderGetSetTestCase::DoRun(), and ns3::TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime().

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void ns3::TcpHeader::EnableChecksums ( void )

Enable checksum calculation for TCP.

Todo:: currently has no effect

Definition at line 55 of file tcp-header.cc.

References m_calcChecksum.

Referenced by ns3::TcpL4Protocol::Receive(), ns3::TcpL4Protocol::Send(), and ns3::TcpL4Protocol::SendPacket().

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SequenceNumber32 ns3::TcpHeader::GetAckNumber ( ) const

Get the ACK number.

Returns: the ACK number for this TcpHeader

Definition at line 121 of file tcp-header.cc.

References m_ackNumber.

Referenced by ns3::TcpWestwood::CountAck(), ns3::TcpHeaderGetSetTestCase::DoRun(), ns3::TcpSocketBase::EstimateRtt(), ns3::TcpSocketBase::ProcessSynRcvd(), ns3::TcpSocketBase::ProcessSynSent(), ns3::TcpSocketBase::ProcessWait(), ns3::TcpL4Protocol::Receive(), ns3::TcpWestwood::ReceivedAck(), ns3::TcpSocketBase::ReceivedAck(), ns3::TcpSocketBase::ReceivedData(), and ns3::TcpL4Protocol::SendPacket().

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uint16_t ns3::TcpHeader::GetDestinationPort ( ) const

Get the destination port.

Returns: the destination port for this TcpHeader

Definition at line 109 of file tcp-header.cc.

References m_destinationPort.

Referenced by ns3::IpcsClassifier::Classify(), ns3::EpcTftClassifier::Classify(), ns3::TcpHeaderGetSetTestCase::DoRun(), and ns3::TcpL4Protocol::Receive().

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uint8_t ns3::TcpHeader::GetFlags ( ) const

Get the flags.

Returns: the flags for this TcpHeader

Definition at line 133 of file tcp-header.cc.

References m_flags.

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

virtual

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

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

Implements ns3::ObjectBase.

Definition at line 240 of file tcp-header.cc.

References GetTypeId().

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uint8_t ns3::TcpHeader::GetLength ( ) const

Get the length in words.

A word is 4 bytes; without Tcp Options, header is 5 words (20 bytes). With options, it can reach up to 15 words (60 bytes).

Returns: the length of this TcpHeader

Definition at line 127 of file tcp-header.cc.

References m_length.

Referenced by ns3::TcpHeaderWithRFC793OptionTestCase::CheckNoPadding(), ns3::TcpHeaderGetSetTestCase::DoRun(), ns3::TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime(), Serialize(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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Ptr< TcpOption > ns3::TcpHeader::GetOption ( uint8_t kind ) const

Get the option specified.

Parameters

kind	the option to retrieve

Returns: Whether the header contains a specific kind of option, or 0

Definition at line 479 of file tcp-header.cc.

References m_options.

Referenced by ns3::TcpSocketBase::ReadOptions().

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SequenceNumber32 ns3::TcpHeader::GetSequenceNumber ( void ) const

Get the sequence number.

Returns: the sequence number for this TcpHeader

Definition at line 115 of file tcp-header.cc.

References m_sequenceNumber.

Referenced by ns3::TcpRxBuffer::Add(), ns3::TcpSocketBase::CompleteFork(), ns3::TcpHeaderGetSetTestCase::DoRun(), ns3::TcpSocketBase::PeerClose(), ns3::TcpSocketBase::ProcessClosing(), ns3::TcpSocketBase::ProcessLastAck(), ns3::TcpSocketBase::ProcessSynRcvd(), ns3::TcpSocketBase::ProcessSynSent(), ns3::TcpSocketBase::ProcessWait(), ns3::TcpL4Protocol::Receive(), ns3::TcpSocketBase::ReceivedData(), and ns3::TcpL4Protocol::SendPacket().

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uint32_t ns3::TcpHeader::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 302 of file tcp-header.cc.

References CalculateHeaderLength().

Referenced by ns3::TcpHeaderWithRFC793OptionTestCase::CheckNoPadding(), Deserialize(), ns3::TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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uint16_t ns3::TcpHeader::GetSourcePort ( ) const

Get the source port.

Returns: The source port for this TcpHeader

Definition at line 103 of file tcp-header.cc.

References m_sourcePort.

Referenced by ns3::IpcsClassifier::Classify(), ns3::EpcTftClassifier::Classify(), ns3::TcpHeaderGetSetTestCase::DoRun(), and ns3::TcpL4Protocol::Receive().

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TypeId ns3::TcpHeader::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 230 of file tcp-header.cc.

References ns3::TypeId::SetParent().

Referenced by GetInstanceTypeId().

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uint16_t ns3::TcpHeader::GetUrgentPointer ( ) const

Get the urgent pointer.

Returns: the urgent pointer for this TcpHeader

Definition at line 145 of file tcp-header.cc.

References m_urgentPointer.

Referenced by ns3::TcpHeaderGetSetTestCase::DoRun().

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uint16_t ns3::TcpHeader::GetWindowSize ( ) const

Get the window size.

Returns: the window size for this TcpHeader

Definition at line 139 of file tcp-header.cc.

References m_windowSize.

Referenced by ns3::TcpHeaderGetSetTestCase::DoRun().

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bool ns3::TcpHeader::HasOption ( uint8_t kind ) const

Check if the header has the option specified.

Parameters

kind	Option to check for

Returns: true if the header has the option, false otherwise

Definition at line 495 of file tcp-header.cc.

References m_options.

Referenced by ns3::TcpHeaderWithRFC793OptionTestCase::CheckCorrectDeserialize(), ns3::TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime(), and ns3::TcpSocketBase::ReadOptions().

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void ns3::TcpHeader::InitializeChecksum	(	Ipv4Address	source,
		Ipv4Address	destination,
		uint8_t	protocol
	)

Initialize the TCP checksum.

If you want to use tcp checksums, you should call this method prior to adding the header to a packet.

Parameters

source	the IP source to use in the underlying IP packet.
destination	the IP destination to use in the underlying IP packet.
protocol	the protocol number to use in the underlying IP packet.

Definition at line 151 of file tcp-header.cc.

References m_destination, m_protocol, and m_source.

Referenced by ns3::TcpL4Protocol::Receive(), ns3::TcpL4Protocol::Send(), and ns3::TcpL4Protocol::SendPacket().

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void ns3::TcpHeader::InitializeChecksum	(	Ipv6Address	source,
		Ipv6Address	destination,
		uint8_t	protocol
	)

Initialize the TCP checksum.

If you want to use tcp checksums, you should call this method prior to adding the header to a packet.

Parameters

source	the IP source to use in the underlying IP packet.
destination	the IP destination to use in the underlying IP packet.
protocol	the protocol number to use in the underlying IP packet.

Definition at line 161 of file tcp-header.cc.

References m_destination, m_protocol, and m_source.

void ns3::TcpHeader::InitializeChecksum	(	Address	source,
		Address	destination,
		uint8_t	protocol
	)

Initialize the TCP checksum.

If you want to use tcp checksums, you should call this method prior to adding the header to a packet.

Parameters

source	the IP source to use in the underlying IP packet.
destination	the IP destination to use in the underlying IP packet.
protocol	the protocol number to use in the underlying IP packet.

Definition at line 171 of file tcp-header.cc.

References m_destination, m_protocol, and m_source.

bool ns3::TcpHeader::IsChecksumOk ( void ) const

Is the TCP checksum correct ?

Returns: true if the checksum is correct, false otherwise.

Definition at line 224 of file tcp-header.cc.

References m_goodChecksum.

Referenced by ns3::TcpL4Protocol::Receive().

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

virtual

Parameters

os output stream This method is used by Packet::Print to print the content of a trailer as ascii data to a c++ output stream. Although the trailer 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 246 of file tcp-header.cc.

References ACK, CWR, ECE, FIN, m_ackNumber, m_destinationPort, m_flags, m_options, m_sequenceNumber, m_sourcePort, m_windowSize, PSH, RST, SYN, and URG.

void ns3::TcpHeader::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 308 of file tcp-header.cc.

References CalculateHeaderChecksum(), ns3::TcpOption::END, GetLength(), ns3::Buffer::Iterator::GetSize(), ns3::SequenceNumber< NUMERIC_TYPE, SIGNED_TYPE >::GetValue(), m_ackNumber, m_calcChecksum, m_destinationPort, m_flags, m_options, m_sequenceNumber, m_sourcePort, m_urgentPointer, m_windowSize, ns3::Buffer::Iterator::Next(), visualizer.core::start(), ns3::Buffer::Iterator::WriteHtonU16(), ns3::Buffer::Iterator::WriteHtonU32(), and ns3::Buffer::Iterator::WriteU8().

Referenced by ns3::TcpHeaderWithRFC793OptionTestCase::CheckCorrectDeserialize(), ns3::TcpHeaderWithRFC793OptionTestCase::CheckNoPadding(), ns3::TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetAckNumber ( SequenceNumber32 ackNumber )

Set the ACK number.

Parameters

ackNumber the ACK number for this TcpHeader

Definition at line 79 of file tcp-header.cc.

References m_ackNumber.

Referenced by ns3::TcpSocketBase::DoForwardUp(), ns3::TcpSocketBase::PersistTimeout(), ns3::TcpL4Protocol::Send(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetDestinationPort ( uint16_t port )

Set the destination port.

Parameters

port	the destination port for this TcpHeader

Definition at line 67 of file tcp-header.cc.

References m_destinationPort, and port.

Referenced by ns3::TcpSocketBase::DoForwardUp(), ns3::TcpSocketBase::PersistTimeout(), ns3::TcpL4Protocol::Send(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetFlags ( uint8_t flags )

Set flags of the header.

Parameters

flags the flags for this TcpHeader

Definition at line 85 of file tcp-header.cc.

References m_flags.

Referenced by ns3::TcpSocketBase::DoForwardUp(), ns3::TcpL4Protocol::Receive(), ns3::TcpL4Protocol::Send(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetSequenceNumber ( SequenceNumber32 sequenceNumber )

Set the sequence Number.

Parameters

sequenceNumber the sequence number for this TcpHeader

Definition at line 73 of file tcp-header.cc.

References m_sequenceNumber.

Referenced by ns3::TcpSocketBase::DoForwardUp(), ns3::TcpSocketBase::PersistTimeout(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetSourcePort ( uint16_t port )

Set the source port.

Parameters

port	The source port for this TcpHeader

Definition at line 61 of file tcp-header.cc.

References m_sourcePort, and port.

Referenced by ns3::TcpSocketBase::DoForwardUp(), ns3::TcpSocketBase::PersistTimeout(), ns3::TcpL4Protocol::Send(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetUrgentPointer ( uint16_t urgentPointer )

Set the urgent pointer.

Parameters

urgentPointer the urgent pointer for this TcpHeader

Definition at line 97 of file tcp-header.cc.

References m_urgentPointer.

Referenced by ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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void ns3::TcpHeader::SetWindowSize ( uint16_t windowSize )

Set the window size.

Parameters

windowSize the window size for this TcpHeader

Definition at line 91 of file tcp-header.cc.

References m_windowSize.

Referenced by ns3::TcpSocketBase::DoForwardUp(), ns3::TcpSocketBase::PersistTimeout(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpHeaderGetSetTestCase::TcpHeaderGetSetTestCase().

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Friends And Related Function Documentation

bool operator==	(	const TcpHeader &	lhs,
		const TcpHeader &	rhs
	)

friend

Definition at line 511 of file tcp-header.cc.

Member Data Documentation

SequenceNumber32 ns3::TcpHeader::m_ackNumber

private

ACK number.

Definition at line 285 of file tcp-header.h.

Referenced by Deserialize(), GetAckNumber(), ns3::operator==(), Print(), Serialize(), and SetAckNumber().

bool ns3::TcpHeader::m_calcChecksum

private

Flag to calculate checksum.

Definition at line 295 of file tcp-header.h.

Referenced by Deserialize(), EnableChecksums(), and Serialize().

Address ns3::TcpHeader::m_destination

private

Destination IP address.

Definition at line 292 of file tcp-header.h.

Referenced by CalculateHeaderChecksum(), and InitializeChecksum().

uint16_t ns3::TcpHeader::m_destinationPort

private

Destination port.

Definition at line 283 of file tcp-header.h.

Referenced by Deserialize(), GetDestinationPort(), ns3::operator==(), Print(), Serialize(), and SetDestinationPort().

uint8_t ns3::TcpHeader::m_flags

private

Flags (really a uint6_t)

Definition at line 287 of file tcp-header.h.

Referenced by Deserialize(), GetFlags(), ns3::operator==(), Print(), Serialize(), and SetFlags().

bool ns3::TcpHeader::m_goodChecksum

private

Flag to indicate that checksum is correct.

Definition at line 296 of file tcp-header.h.

Referenced by Deserialize(), and IsChecksumOk().

uint8_t ns3::TcpHeader::m_length

private

Length (really a uint4_t) in words.

Definition at line 286 of file tcp-header.h.

Referenced by AppendOption(), Deserialize(), and GetLength().

const uint8_t ns3::TcpHeader::m_maxOptionsLen = 40

staticprivate

Maximum options length.

Definition at line 302 of file tcp-header.h.

Referenced by AppendOption().

TcpOptionList ns3::TcpHeader::m_options

private

TcpOption present in the header.

Definition at line 300 of file tcp-header.h.

Referenced by AppendOption(), CalculateHeaderLength(), Deserialize(), GetOption(), HasOption(), Print(), and Serialize().

uint8_t ns3::TcpHeader::m_optionsLen

private

Tcp options length.

Definition at line 301 of file tcp-header.h.

Referenced by AppendOption().

uint8_t ns3::TcpHeader::m_protocol

private

Protocol number.

Definition at line 293 of file tcp-header.h.

Referenced by CalculateHeaderChecksum(), and InitializeChecksum().

SequenceNumber32 ns3::TcpHeader::m_sequenceNumber

private

Sequence number.

Definition at line 284 of file tcp-header.h.

Referenced by Deserialize(), GetSequenceNumber(), ns3::operator==(), Print(), Serialize(), and SetSequenceNumber().

Address ns3::TcpHeader::m_source

private

Source IP address.

Definition at line 291 of file tcp-header.h.

Referenced by CalculateHeaderChecksum(), and InitializeChecksum().

uint16_t ns3::TcpHeader::m_sourcePort

private

Source port.

Definition at line 282 of file tcp-header.h.

Referenced by Deserialize(), GetSourcePort(), ns3::operator==(), Print(), Serialize(), and SetSourcePort().

uint16_t ns3::TcpHeader::m_urgentPointer

private

Urgent pointer.

Definition at line 289 of file tcp-header.h.

Referenced by Deserialize(), GetUrgentPointer(), ns3::operator==(), Serialize(), and SetUrgentPointer().

uint16_t ns3::TcpHeader::m_windowSize

private

Window size.

Definition at line 288 of file tcp-header.h.

Referenced by Deserialize(), GetWindowSize(), ns3::operator==(), Print(), Serialize(), and SetWindowSize().

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

src/internet/model/tcp-header.h
src/internet/model/tcp-header.cc

Public Types

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation