ns3::Ipv6ExtensionFragment Class Reference

IPv6 Extension Fragment. More...

#include <ipv6-extension.h>

Inheritance diagram for ns3::Ipv6ExtensionFragment:

Collaboration diagram for ns3::Ipv6ExtensionFragment:

Classes
class	Fragments
	A Set of Fragment. More...

Public Member Functions
	Ipv6ExtensionFragment ()
	Constructor.
	~Ipv6ExtensionFragment ()
	Destructor.
virtual uint8_t	GetExtensionNumber () const
	Get the extension number.
void	GetFragments (Ptr< Packet > packet, uint32_t fragmentSize, std::list< Ptr< Packet > > &listFragments)
	Fragment a packet.
virtual uint8_t	Process (Ptr< Packet > &packet, uint8_t offset, Ipv6Header const &ipv6Header, Ipv6Address dst, uint8_t *nextHeader, bool &isDropped)
	Process method Called from Ipv6L3Protocol::Receive.
Public Member Functions inherited from ns3::Ipv6Extension
	Ipv6Extension ()
	Constructor.
virtual	~Ipv6Extension ()
	Destructor.
int64_t	AssignStreams (int64_t stream)
Ptr< Node >	GetNode () const
	Get the node.
virtual uint8_t	ProcessOptions (Ptr< Packet > &packet, uint8_t offset, uint8_t length, Ipv6Header const &ipv6Header, Ipv6Address dst, uint8_t *nextHeader, bool &isDropped)
	Process options Called by implementing classes to process the options.
void	SetNode (Ptr< Node > node)
	Set the node.
Public Member Functions inherited from ns3::Object
	Object ()
virtual	~Object ()
void	AggregateObject (Ptr< Object > other)
void	Dispose (void)
AggregateIterator	GetAggregateIterator (void) const
virtual TypeId	GetInstanceTypeId (void) const
template<typename T >
Ptr< T >	GetObject (void) const
template<typename T >
Ptr< T >	GetObject (TypeId tid) const
void	Start (void)
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	SimpleRefCount (const SimpleRefCount &o)
uint32_t	GetReferenceCount (void) const
SimpleRefCount &	operator= (const SimpleRefCount &o)
void	Ref (void) const
void	Unref (void) const
Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
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 ()
	Get the type identificator.

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

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

Private Types
typedef std::map< std::pair < Ipv6Address, uint32_t >, Ptr < Fragments > >	MapFragments_t

Private Member Functions
void	CancelTimeout ()
	Cancel the timeout event.
Ptr< Packet >	GetPartialPacket () const
	Get the packet parts so far received.
void	HandleFragmentsTimeout (std::pair< Ipv6Address, uint32_t > key, Ipv6Header &ipHeader)
	Process the timeout for packet fragments.
void	SetTimeoutEventId (EventId event)
	Set the Timeout EventId.

Private Attributes
MapFragments_t	m_fragments
	The hash of fragmented packets.

Additional Inherited Members
Protected Attributes inherited from ns3::Ipv6Extension
TracedCallback< Ptr< const Packet > >	m_dropTrace
	Drop trace callback.
Ptr< UniformRandomVariable >	m_uvar
	Provides uniform random variables.

Detailed Description

IPv6 Extension Fragment.

Definition at line 241 of file ipv6-extension.h.

Member Typedef Documentation

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

private

Definition at line 404 of file ipv6-extension.h.

Constructor & Destructor Documentation

ns3::Ipv6ExtensionFragment::Ipv6ExtensionFragment

(

)

Constructor.

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

References NS_LOG_FUNCTION_NOARGS.

ns3::Ipv6ExtensionFragment::~Ipv6ExtensionFragment

(

)

Destructor.

Definition at line 305 of file ipv6-extension.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

void ns3::Ipv6ExtensionFragment::CancelTimeout ( )

private

Cancel the timeout event.

void ns3::Ipv6ExtensionFragment::DoDispose ( void  )

protectedvirtual

Dispose this object.

Reimplemented from ns3::Object.

Definition at line 310 of file ipv6-extension.cc.

References m_fragments, and NS_LOG_FUNCTION_NOARGS.

Referenced by ns3::Ipv6ExtensionRoutingDemux::DoDispose().

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uint8_t ns3::Ipv6ExtensionFragment::GetExtensionNumber ( ) const

virtual

Get the extension number.

Returns

extension number

Implements ns3::Ipv6Extension.

Definition at line 323 of file ipv6-extension.cc.

References EXT_NUMBER, and NS_LOG_FUNCTION_NOARGS.

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

Fragment a packet.

Parameters

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

Definition at line 396 of file ipv6-extension.cc.

References ns3::Packet::AddHeader(), ns3::Packet::Copy(), ns3::Packet::CopyData(), ns3::Packet::CreateFragment(), ns3::Ipv6ExtensionHeader::GetLength(), ns3::Ipv6ExtensionHeader::GetNextHeader(), ns3::Ipv6Header::GetNextHeader(), ns3::Ipv6Extension::GetNode(), ns3::Object::GetObject(), ns3::Ipv6Header::GetSerializedSize(), ns3::Ipv6ExtensionFragmentHeader::GetSerializedSize(), ns3::Packet::GetSize(), ns3::UniformRandomVariable::GetValue(), ns3::Ipv6Header::IPV6_EXT_DESTINATION, ns3::Ipv6Header::IPV6_EXT_FRAGMENTATION, ns3::Ipv6Header::IPV6_EXT_HOP_BY_HOP, ns3::Ipv6Header::IPV6_EXT_ROUTING, list, ns3::Ipv6Extension::m_uvar, ns3::Packet::Print(), ns3::Packet::RemoveHeader(), ns3::Ipv6ExtensionFragmentHeader::SetIdentification(), ns3::Ipv6ExtensionHeader::SetLength(), ns3::Ipv6ExtensionFragmentHeader::SetMoreFragment(), ns3::Ipv6ExtensionHeader::SetNextHeader(), ns3::Ipv6Header::SetNextHeader(), ns3::Ipv6ExtensionLooseRoutingHeader::SetNumberAddress(), ns3::Ipv6ExtensionFragmentHeader::SetOffset(), and ns3::Ipv6Header::SetPayloadLength().

Referenced by ns3::Ipv6L3Protocol::SendRealOut().

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

private

Get the packet parts so far received.

Returns

the partial packet

TypeId ns3::Ipv6ExtensionFragment::GetTypeId ( void  )

static

Get the type identificator.

This method returns the TypeId associated to ns3::Ipv6ExtensionFragment.

Returns

type identificator

No Attributes 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 defined for this type.
TraceSources defined in parent class ns3::Ipv6Extension:

• Drop: Drop ipv6 packet

Reimplemented from ns3::Ipv6Extension.

Definition at line 291 of file ipv6-extension.cc.

References ns3::TypeId::SetParent().

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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
iif	Input Interface

Definition at line 563 of file ipv6-extension.cc.

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

Referenced by Process().

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

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
isDropped	if the packet must be dropped

Returns

the size processed

Implements ns3::Ipv6Extension.

Definition at line 330 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.

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

private

Set the Timeout EventId.

Member Data Documentation

const uint8_t ns3::Ipv6ExtensionFragment::EXT_NUMBER = 44

static

Fragmentation extension number.

Definition at line 247 of file ipv6-extension.h.

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

MapFragments_t ns3::Ipv6ExtensionFragment::m_fragments

private

The hash of fragmented packets.

Definition at line 409 of file ipv6-extension.h.

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

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

• src/internet/model/ipv6-extension.h
• doc/introspected-doxygen.h
• src/internet/model/ipv6-extension.cc