ArpQueueDiscItem is a subclass of QueueDiscItem which stores ARP packets. More...

#include "arp-queue-disc-item.h"

Inheritance diagram for ns3::ArpQueueDiscItem:

Collaboration diagram for ns3::ArpQueueDiscItem:

Public Member Functions
	ArpQueueDiscItem (Ptr< Packet > p, const Address &addr, uint16_t protocol, const ArpHeader &header)
	Create an ARP queue disc item containing an ARP packet. More...

virtual	~ArpQueueDiscItem ()

virtual void	AddHeader (void)
	Add the header to the packet. More...

const ArpHeader &	GetHeader (void) const

virtual uint32_t	GetSize (void) const

virtual uint32_t	Hash (uint32_t perturbation) const
	Computes the hash of the packet's 5-tuple. More...

virtual bool	Mark (void)
	Inherited from the base class, but we cannot mark ARP packets. More...

virtual void	Print (std::ostream &os) const
	Print the item contents. More...

Public Member Functions inherited from ns3::QueueDiscItem
	QueueDiscItem (Ptr< Packet > p, const Address &addr, uint16_t protocol)
	Create a queue disc item. More...

virtual	~QueueDiscItem ()

Address	GetAddress (void) const
	Get the MAC address included in this item. More...

uint16_t	GetProtocol (void) const
	Get the L3 protocol included in this item. More...

Time	GetTimeStamp (void) const
	Get the timestamp included in this item. More...

uint8_t	GetTxQueueIndex (void) const
	Get the transmission queue index included in this item. More...

void	SetTimeStamp (Time t)
	Set the timestamp included in this item. More...

void	SetTxQueueIndex (uint8_t txq)
	Set the transmission queue index to store in this item. More...

Public Member Functions inherited from ns3::QueueItem
	QueueItem (Ptr< Packet > p)
	Create a queue item containing a packet. More...

virtual	~QueueItem ()

Ptr< Packet >	GetPacket (void) const

virtual bool	GetUint8Value (Uint8Values field, uint8_t &value) const
	Retrieve the value of a given field from the packet, if present. More...

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

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

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

void	Ref (void) const
	Increment the reference count. More...

void	Unref (void) const
	Decrement the reference count. More...

Private Member Functions
	ArpQueueDiscItem ()
	Default constructor. More...

	ArpQueueDiscItem (const ArpQueueDiscItem &)
	Copy constructor. More...

ArpQueueDiscItem &	operator= (const ArpQueueDiscItem &)
	Assignment operator. More...

Private Attributes
ArpHeader	m_header
	The ARP header. More...

bool	m_headerAdded
	True if the header has already been added to the packet. More...

Additional Inherited Members
Public Types inherited from ns3::QueueItem
typedef void(*	TracedCallback) (Ptr< const QueueItem > item)
	TracedCallback signature for Ptr<QueueItem> More...

enum	Uint8Values { IP_DSFIELD }
	1-byte fields of the packet whose value can be retrieved, if present More...

Detailed Description

ArpQueueDiscItem is a subclass of QueueDiscItem which stores ARP packets.

Header and payload are kept separate to allow the queue disc to hash the fields of the header, which is added to the packet when the packet is dequeued.

Definition at line 36 of file arp-queue-disc-item.h.

Constructor & Destructor Documentation

◆ ArpQueueDiscItem() [1/3]

ns3::ArpQueueDiscItem::ArpQueueDiscItem	(	Ptr< Packet >	p,
		const Address &	addr,
		uint16_t	protocol,
		const ArpHeader &	header
	)

Create an ARP queue disc item containing an ARP packet.

Parameters

p	the packet included in the created item.
addr	the destination MAC address
protocol	the protocol number
header	the ARP header

Definition at line 26 of file arp-queue-disc-item.cc.

◆ ~ArpQueueDiscItem()

ns3::ArpQueueDiscItem::~ArpQueueDiscItem ( )

virtual

Definition at line 34 of file arp-queue-disc-item.cc.

References NS_LOG_FUNCTION.

◆ ArpQueueDiscItem() [2/3]

ns3::ArpQueueDiscItem::ArpQueueDiscItem ( )

private

Default constructor.

Defined and unimplemented to avoid misuse

◆ ArpQueueDiscItem() [3/3]

ns3::ArpQueueDiscItem::ArpQueueDiscItem ( const ArpQueueDiscItem & )

private

Copy constructor.

Defined and unimplemented to avoid misuse

Member Function Documentation

◆ AddHeader()

void ns3::ArpQueueDiscItem::AddHeader ( void )

virtual

Add the header to the packet.

Implements ns3::QueueDiscItem.

Definition at line 58 of file arp-queue-disc-item.cc.

References ns3::Packet::AddHeader(), ns3::QueueItem::GetPacket(), m_header, m_headerAdded, NS_ASSERT, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

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◆ GetHeader()

const ArpHeader & ns3::ArpQueueDiscItem::GetHeader ( void ) const

Returns: the header stored in this item..

Definition at line 53 of file arp-queue-disc-item.cc.

References m_header.

◆ GetSize()

uint32_t ns3::ArpQueueDiscItem::GetSize ( void ) const

virtual

Returns: the correct packet size (header plus payload).

Reimplemented from ns3::QueueItem.

Definition at line 39 of file arp-queue-disc-item.cc.

References ns3::QueueItem::GetPacket(), ns3::ArpHeader::GetSerializedSize(), ns3::Packet::GetSize(), m_header, m_headerAdded, NS_ASSERT, and NS_LOG_FUNCTION.

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◆ Hash()

uint32_t ns3::ArpQueueDiscItem::Hash ( uint32_t perturbation ) const

virtual

Computes the hash of the packet's 5-tuple.

Parameters

perturbation hash perturbation value

Returns: the hash of the packet's 5-tuple

Reimplemented from ns3::QueueDiscItem.

Definition at line 91 of file arp-queue-disc-item.cc.

References ns3::ArpHeader::ARP_TYPE_REPLY, ns3::ArpHeader::ARP_TYPE_REQUEST, ns3::Address::CopyTo(), ns3::ArpHeader::GetDestinationHardwareAddress(), ns3::ArpHeader::GetDestinationIpv4Address(), ns3::Address::GetLength(), ns3::ArpHeader::GetSourceHardwareAddress(), ns3::ArpHeader::GetSourceIpv4Address(), hash, ns3::Hash32(), ns3::ArpHeader::IsRequest(), m_header, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::Ipv4Address::Serialize().

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◆ Mark()

bool ns3::ArpQueueDiscItem::Mark ( void )

virtual

Inherited from the base class, but we cannot mark ARP packets.

Returns: false

Implements ns3::QueueDiscItem.

Definition at line 84 of file arp-queue-disc-item.cc.

References NS_LOG_FUNCTION.

◆ operator=()

ArpQueueDiscItem& ns3::ArpQueueDiscItem::operator= ( const ArpQueueDiscItem & )

private

Assignment operator.

Defined and unimplemented to avoid misuse

Returns

◆ Print()

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

virtual

Print the item contents.

Parameters

os	output stream in which the data should be printed.

Reimplemented from ns3::QueueDiscItem.

Definition at line 70 of file arp-queue-disc-item.cc.

References ns3::QueueDiscItem::GetAddress(), ns3::QueueItem::GetPacket(), ns3::QueueDiscItem::GetProtocol(), ns3::QueueDiscItem::GetTxQueueIndex(), m_header, and m_headerAdded.

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Member Data Documentation

◆ m_header

ArpHeader ns3::ArpQueueDiscItem::m_header

private

The ARP header.

Definition at line 105 of file arp-queue-disc-item.h.

Referenced by AddHeader(), GetHeader(), GetSize(), Hash(), and Print().

◆ m_headerAdded

bool ns3::ArpQueueDiscItem::m_headerAdded

private

True if the header has already been added to the packet.

Definition at line 106 of file arp-queue-disc-item.h.

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

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

src/internet/model/arp-queue-disc-item.h
src/internet/model/arp-queue-disc-item.cc

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ArpQueueDiscItem() [1/3]

◆ ~ArpQueueDiscItem()

◆ ArpQueueDiscItem() [2/3]

◆ ArpQueueDiscItem() [3/3]

Member Function Documentation

◆ AddHeader()

◆ GetHeader()

◆ GetSize()

◆ Hash()

◆ Mark()

◆ operator=()

◆ Print()

Member Data Documentation

◆ m_header

◆ m_headerAdded