IPv6 Extension Fragment. More...

#include "ipv6-extension.h"

Inheritance diagram for ns3::Ipv6ExtensionFragment:

Classes
class	Fragments
	This class stores the fragments of a packet waiting to be rebuilt. More...

Public Types
typedef std::pair< Ptr< Packet >, Ipv6Header >	Ipv6PayloadHeaderPair
	Pair of a packet and an Ipv6 header. More...

Public Member Functions
	Ipv6ExtensionFragment ()
	Constructor. More...

	~Ipv6ExtensionFragment ()
	Destructor. More...

virtual uint8_t	GetExtensionNumber () const
	Get the extension number. More...

void	GetFragments (Ptr< Packet > packet, Ipv6Header ipv6Header, uint32_t fragmentSize, std::list< Ipv6PayloadHeaderPair > &listFragments)
	Fragment a packet. More...

virtual uint8_t	Process (Ptr< Packet > &packet, uint8_t offset, Ipv6Header const &ipv6Header, Ipv6Address dst, uint8_t *nextHeader, bool &stopProcessing, bool &isDropped, Ipv6L3Protocol::DropReason &dropReason)
	Process method Called from Ipv6L3Protocol::Receive. More...

Public Member Functions inherited from ns3::Ipv6Extension
	Ipv6Extension ()
	Constructor. More...

virtual	~Ipv6Extension ()
	Destructor. More...

int64_t	AssignStreams (int64_t stream)
	Assign a fixed random variable stream number to the random variables used by this model. More...

Ptr< Node >	GetNode () const
	Get the node. More...

virtual uint8_t	ProcessOptions (Ptr< Packet > &packet, uint8_t offset, uint8_t length, Ipv6Header const &ipv6Header, Ipv6Address dst, uint8_t *nextHeader, bool &stopProcessing, bool &isDropped, Ipv6L3Protocol::DropReason &dropReason)
	Process options Called by implementing classes to process the options. More...

void	SetNode (Ptr< Node > node)
	Set the node. More...

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor. More...

virtual	~Object ()
	Destructor. More...

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together. More...

void	Dispose (void)
	Dispose of this Object. More...

AggregateIterator	GetAggregateIterator (void) const
	Get an iterator to the Objects aggregated to this one. More...

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

template<typename T >
Ptr< T >	GetObject (void) const
	Get a pointer to the requested aggregated Object. More...

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId. More...

void	Initialize (void)
	Invoke DoInitialize on all Objects aggregated to this one. More...

bool	IsInitialized (void) const
	Check if the object has been initialized. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	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...

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 ()
	Get the type identificator. More...

Static Public Member Functions inherited from ns3::Ipv6Extension
static TypeId	GetTypeId ()
	Get the type identificator. More...

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId (void)
	Register this type. More...

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

Static Public Attributes
static const uint8_t	EXT_NUMBER = 44
	Fragmentation extension number. More...

Protected Member Functions
virtual void	DoDispose ()
	Dispose this object. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object. More...

virtual void	DoInitialize (void)
	Initialize() implementation. More...

virtual void	NotifyNewAggregate (void)
	Notify all Objects aggregated to this one of a new Object being aggregated. More...

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...

Private Types
typedef std::map< std::pair< Ipv6Address, uint32_t >, Ptr< Fragments > >	MapFragments_t
	Container for the packet fragments. More...

Private Member Functions
void	CancelTimeout ()
	Cancel the timeout event. More...

Ptr< Packet >	GetPartialPacket () const
	Get the packet parts so far received. More...

void	HandleFragmentsTimeout (std::pair< Ipv6Address, uint32_t > key, Ipv6Header ipHeader)
	Process the timeout for packet fragments. More...

void	SetTimeoutEventId (EventId event)
	Set the Timeout EventId. More...

Private Attributes
MapFragments_t	m_fragments
	The hash of fragmented packets. More...

Additional Inherited Members
Protected Attributes inherited from ns3::Ipv6Extension
Ptr< UniformRandomVariable >	m_uvar
	Provides uniform random variables. 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

IPv6 Extension Fragment.

Introspection did not find any typical Config paths.

No Attributes are defined for this type.

Attributes defined in parent class ns3::Ipv6Extension

ExtensionNumber: The IPv6 extension number.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:255
- Flags: read

No TraceSources are defined for this type.
Size of this type is 72 bytes (on a 64-bit architecture).

Definition at line 258 of file ipv6-extension.h.

Member Typedef Documentation

◆ Ipv6PayloadHeaderPair

typedef std::pair<Ptr<Packet>, Ipv6Header> ns3::Ipv6ExtensionFragment::Ipv6PayloadHeaderPair

Pair of a packet and an Ipv6 header.

Definition at line 300 of file ipv6-extension.h.

◆ MapFragments_t

typedef std::map<std::pair<Ipv6Address, uint32_t>, Ptr<Fragments> > ns3::Ipv6ExtensionFragment::MapFragments_t

private

Container for the packet fragments.

Definition at line 429 of file ipv6-extension.h.

Constructor & Destructor Documentation

◆ Ipv6ExtensionFragment()

ns3::Ipv6ExtensionFragment::Ipv6ExtensionFragment ( )

Constructor.

Definition at line 322 of file ipv6-extension.cc.

References NS_LOG_FUNCTION_NOARGS.

◆ ~Ipv6ExtensionFragment()

ns3::Ipv6ExtensionFragment::~Ipv6ExtensionFragment ( )

Destructor.

Definition at line 327 of file ipv6-extension.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ CancelTimeout()

void ns3::Ipv6ExtensionFragment::CancelTimeout ( )

private

Cancel the timeout event.

◆ DoDispose()

void ns3::Ipv6ExtensionFragment::DoDispose ( void )

protectedvirtual

Dispose this object.

Reimplemented from ns3::Object.

Definition at line 332 of file ipv6-extension.cc.

References ns3::Object::DoDispose(), m_fragments, and NS_LOG_FUNCTION_NOARGS.

◆ GetExtensionNumber()

uint8_t ns3::Ipv6ExtensionFragment::GetExtensionNumber ( ) const

virtual

Get the extension number.

Returns: extension number

Implements ns3::Ipv6Extension.

Definition at line 345 of file ipv6-extension.cc.

References EXT_NUMBER, and NS_LOG_FUNCTION_NOARGS.

◆ GetFragments()

void ns3::Ipv6ExtensionFragment::GetFragments	(	Ptr< Packet >	packet,
		Ipv6Header	ipv6Header,
		uint32_t	fragmentSize,
		std::list< Ipv6PayloadHeaderPair > &	listFragments
	)

Fragment a packet.

Parameters

packet	the packet.
ipv6Header	the IPv6 header.
fragmentSize	the maximal size of the fragment (unfragmentable part + fragmentation header + fragmentable part).
listFragments	the list of fragments.

Definition at line 424 of file ipv6-extension.cc.

◆ GetPartialPacket()

Ptr<Packet> ns3::Ipv6ExtensionFragment::GetPartialPacket ( ) const

private

Get the packet parts so far received.

Returns: the partial packet

◆ GetTypeId()

TypeId ns3::Ipv6ExtensionFragment::GetTypeId ( void )

static

Get the type identificator.

Returns: type identificator

Definition at line 312 of file ipv6-extension.cc.

References ns3::TypeId::SetParent().

◆ HandleFragmentsTimeout()

void ns3::Ipv6ExtensionFragment::HandleFragmentsTimeout	(	std::pair< Ipv6Address, uint32_t >	key,
		Ipv6Header	ipHeader
	)

private

Process the timeout for packet fragments.

Parameters

key	representing the packet fragments
ipHeader	the IP header of the original packet

Definition at line 597 of file ipv6-extension.cc.

References ns3::Packet::AddHeader(), ns3::Packet::Copy(), ns3::Ipv6L3Protocol::DROP_FRAGMENT_TIMEOUT, ns3::Ipv6Extension::GetNode(), ns3::Object::GetObject(), ns3::Packet::GetSize(), ns3::Ipv6Header::GetSourceAddress(), ns3::Icmpv6Header::ICMPV6_FRAGTIME, m_fragments, and NS_ASSERT_MSG().

Referenced by Process().

◆ Process()

uint8_t ns3::Ipv6ExtensionFragment::Process	(	Ptr< Packet > &	packet,
		uint8_t	offset,
		Ipv6Header const &	ipv6Header,
		Ipv6Address	dst,
		uint8_t *	nextHeader,
		bool &	stopProcessing,
		bool &	isDropped,
		Ipv6L3Protocol::DropReason &	dropReason
	)

virtual

Process method Called from Ipv6L3Protocol::Receive.

Parameters

packet	the packet
offset	the offset of the extension to process
ipv6Header	the IPv6 header of packet received
dst	destination address of the packet received (i.e. us)
nextHeader	the next header
stopProcessing	true if the packet must not be further processed
isDropped	true if the packet must be dropped
dropReason	dropping reason

Returns: the size processed

Implements ns3::Ipv6Extension.

Definition at line 352 of file ipv6-extension.cc.

References ns3::Packet::Copy(), ns3::Ipv6ExtensionFragmentHeader::GetIdentification(), ns3::Ipv6ExtensionFragmentHeader::GetMoreFragment(), ns3::Ipv6ExtensionHeader::GetNextHeader(), ns3::Ipv6ExtensionFragmentHeader::GetOffset(), ns3::Packet::GetSize(), ns3::Ipv6Header::GetSourceAddress(), HandleFragmentsTimeout(), m_fragments, NS_LOG_FUNCTION, ns3::Packet::RemoveAtEnd(), ns3::Packet::RemoveAtStart(), ns3::Packet::RemoveHeader(), ns3::Simulator::Schedule(), ns3::Seconds(), ns3::Ipv6Header::SetNextHeader(), and timeout.

◆ SetTimeoutEventId()

void ns3::Ipv6ExtensionFragment::SetTimeoutEventId ( EventId event )

private

Set the Timeout EventId.

Parameters

event The event.

Member Data Documentation

◆ EXT_NUMBER

const uint8_t ns3::Ipv6ExtensionFragment::EXT_NUMBER = 44

static

Fragmentation extension number.

Definition at line 264 of file ipv6-extension.h.

Referenced by ns3::InternetStackHelper::AssignStreams(), GetExtensionNumber(), ns3::Ipv6ExtensionRouting::GetExtensionNumber(), ns3::Ipv6ExtensionESP::GetExtensionNumber(), and ns3::Ipv6ExtensionAH::GetExtensionNumber().

◆ m_fragments

MapFragments_t ns3::Ipv6ExtensionFragment::m_fragments

private

The hash of fragmented packets.

Definition at line 434 of file ipv6-extension.h.

Referenced by DoDispose(), HandleFragmentsTimeout(), and Process().

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

src/internet/model/ipv6-extension.h
src/internet/model/ipv6-extension.cc

Classes

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Attributes defined in parent class ns3::Ipv6Extension

Member Typedef Documentation

◆ Ipv6PayloadHeaderPair

◆ MapFragments_t

Constructor & Destructor Documentation

◆ Ipv6ExtensionFragment()

◆ ~Ipv6ExtensionFragment()

Member Function Documentation

◆ CancelTimeout()

◆ DoDispose()

◆ GetExtensionNumber()

◆ GetFragments()

◆ GetPartialPacket()

◆ GetTypeId()

◆ HandleFragmentsTimeout()

◆ Process()

◆ SetTimeoutEventId()

Member Data Documentation

◆ EXT_NUMBER

◆ m_fragments