OLSR routing protocol for IPv4. More...

#include <olsr-routing-protocol.h>

Inheritance diagram for ns3::olsr::RoutingProtocol:

Collaboration diagram for ns3::olsr::RoutingProtocol:

Public Member Functions
	RoutingProtocol ()
virtual	~RoutingProtocol ()
void	AddHostNetworkAssociation (Ipv4Address networkAddr, Ipv4Mask netmask)
	Inject Association to be sent in HNA message.
int64_t	AssignStreams (int64_t stream)
void	Dump (void)
std::set< uint32_t >	GetInterfaceExclusions () const
std::vector< RoutingTableEntry >	GetRoutingTableEntries () const
void	RemoveHostNetworkAssociation (Ipv4Address networkAddr, Ipv4Mask netmask)
	Removes Association sent in HNA message.
void	SetInterfaceExclusions (std::set< uint32_t > exceptions)
void	SetMainInterface (uint32_t interface)
	Set the OLSR main address to the first address on the indicated interface.
void	SetRoutingTableAssociation (Ptr< Ipv4StaticRouting > routingTable)
	Inject Associations from an Ipv4StaticRouting instance.
Public Member Functions inherited from ns3::Ipv4RoutingProtocol
virtual void	NotifyAddAddress (uint32_t interface, Ipv4InterfaceAddress address)=0
virtual void	NotifyInterfaceDown (uint32_t interface)=0
virtual void	NotifyInterfaceUp (uint32_t interface)=0
virtual void	NotifyRemoveAddress (uint32_t interface, Ipv4InterfaceAddress address)=0
virtual void	PrintRoutingTable (Ptr< OutputStreamWrapper > stream) const =0
	Print the Routing Table entries.
virtual bool	RouteInput (Ptr< const Packet > p, const Ipv4Header &header, Ptr< const NetDevice > idev, UnicastForwardCallback ucb, MulticastForwardCallback mcb, LocalDeliverCallback lcb, ErrorCallback ecb)=0
	Route an input packet (to be forwarded or locally delivered)
virtual Ptr< Ipv4Route >	RouteOutput (Ptr< Packet > p, const Ipv4Header &header, Ptr< NetDevice > oif, Socket::SocketErrno &sockerr)=0
	Query routing cache for an existing route, for an outbound packet.
virtual void	SetIpv4 (Ptr< Ipv4 > ipv4)=0
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 (void)
	This method returns the TypeId associated to ns3::olsr::RoutingProtocol.

Protected Member Functions
virtual void	DoStart (void)

Private Member Functions
void	AddAssociationTuple (const AssociationTuple &tuple)
	Adds a host network association tuple to the Association Set.
void	AddDuplicateTuple (const DuplicateTuple &tuple)
	Adds a duplicate tuple to the Duplicate Set.
void	AddEntry (const Ipv4Address &dest, const Ipv4Address &next, uint32_t interface, uint32_t distance)
	Adds a new entry into the routing table.
void	AddEntry (const Ipv4Address &dest, const Ipv4Address &next, const Ipv4Address &interfaceAddress, uint32_t distance)
void	AddIfaceAssocTuple (const IfaceAssocTuple &tuple)
	Adds an interface association tuple to the Interface Association Set.
void	AddMprSelectorTuple (const MprSelectorTuple &tuple)
	Adds an MPR selector tuple to the MPR Selector Set.
void	AddNeighborTuple (const NeighborTuple &tuple)
	Adds a neighbor tuple to the Neighbor Set.
void	AddTopologyTuple (const TopologyTuple &tuple)
	Adds a topology tuple to the Topology Set.
void	AddTwoHopNeighborTuple (const TwoHopNeighborTuple &tuple)
	Adds a 2-hop neighbor tuple to the 2-hop Neighbor Set.
void	AssociationTupleTimerExpire (Ipv4Address gatewayAddr, Ipv4Address networkAddr, Ipv4Mask netmask)
	Removes tuple_ if expired. Else timer is rescheduled to expire at tuple_->time().
void	Clear ()
	Clears the routing table and frees the memory assigned to each one of its entries.
int	Degree (NeighborTuple const &tuple)
	This auxiliary function (defined in RFC 3626) is used for calculating the MPR Set.
void	DoDispose ()
void	DupTupleTimerExpire (Ipv4Address address, uint16_t sequenceNumber)
	Removes tuple if expired. Else timer is rescheduled to expire at tuple.expirationTime.
bool	FindSendEntry (const RoutingTableEntry &entry, RoutingTableEntry &outEntry) const
	Finds the appropiate entry which must be used in order to forward a data packet to a next hop (given a destination).
void	ForwardDefault (olsr::MessageHeader olsrMessage, DuplicateTuple *duplicated, const Ipv4Address &localIface, const Ipv4Address &senderAddress)
	OLSR's default forwarding algorithm.
Ipv4Address	GetMainAddress (Ipv4Address iface_addr) const
	Gets the main address associated with a given interface address.
uint16_t	GetMessageSequenceNumber ()
	Increments message sequence number and returns the new value.
uint16_t	GetPacketSequenceNumber ()
	Increments packet sequence number and returns the new value.
uint32_t	GetSize () const
void	HelloTimerExpire ()
	Sends a HELLO message and reschedules the HELLO timer.
void	HnaTimerExpire ()
	Sends an HNA message (if the node has associated hosts/networks) and reschedules the HNA timer.
void	IfaceAssocTupleTimerExpire (Ipv4Address ifaceAddr)
	Removes tuple_ if expired. Else timer is rescheduled to expire at tuple_->time().
void	IncrementAnsn ()
bool	IsMyOwnAddress (const Ipv4Address &a) const
	Check that address is one of my interfaces.
void	LinkSensing (const olsr::MessageHeader &msg, const olsr::MessageHeader::Hello &hello, const Ipv4Address &receiverIface, const Ipv4Address &sender_iface)
	Updates Link Set according to a new received HELLO message (following RFC 3626 specification). Neighbor Set is also updated if needed.
void	LinkTupleAdded (const LinkTuple &tuple, uint8_t willingness)
void	LinkTupleTimerExpire (Ipv4Address neighborIfaceAddr)
	Removes tuple_ if expired. Else if symmetric time has expired then it is assumed a neighbor loss and agent_->nb_loss() is called. In this case the timer is rescheduled to expire at tuple_->time(). Otherwise the timer is rescheduled to expire at the minimum between tuple_->time() and tuple_->sym_time().
void	LinkTupleUpdated (const LinkTuple &tuple, uint8_t willingness)
	This function is invoked when a link tuple is updated. Its aim is to also update the corresponding neighbor tuple if it is needed.
bool	Lookup (const Ipv4Address &dest, RoutingTableEntry &outEntry) const
	Looks up an entry for the specified destination address.
void	MidTimerExpire ()
	Sends a MID message (if the node has more than one interface) and resets the MID timer.
void	MprComputation ()
	Computates MPR set of a node following RFC 3626 hints.
void	MprSelTupleTimerExpire (Ipv4Address mainAddr)
	Removes tuple_ if expired. Else the timer is rescheduled to expire at tuple_->time().
void	Nb2hopTupleTimerExpire (Ipv4Address neighborMainAddr, Ipv4Address twoHopNeighborAddr)
	Removes tuple_ if expired. Else the timer is rescheduled to expire at tuple_->time().
void	NeighborLoss (const LinkTuple &tuple)
	Performs all actions needed when a neighbor loss occurs.
virtual void	NotifyAddAddress (uint32_t interface, Ipv4InterfaceAddress address)
virtual void	NotifyInterfaceDown (uint32_t interface)
virtual void	NotifyInterfaceUp (uint32_t interface)
virtual void	NotifyRemoveAddress (uint32_t interface, Ipv4InterfaceAddress address)
void	PopulateMprSelectorSet (const olsr::MessageHeader &msg, const olsr::MessageHeader::Hello &hello)
	Updates the MPR Selector Set according to the information contained in a new received HELLO message (following RFC 3626).
void	PopulateNeighborSet (const olsr::MessageHeader &msg, const olsr::MessageHeader::Hello &hello)
	Updates the Neighbor Set according to the information contained in a new received HELLO message (following RFC 3626).
void	PopulateTwoHopNeighborSet (const olsr::MessageHeader &msg, const olsr::MessageHeader::Hello &hello)
	Updates the 2-hop Neighbor Set according to the information contained in a new received HELLO message (following RFC 3626).
virtual void	PrintRoutingTable (Ptr< OutputStreamWrapper > stream) const
void	ProcessHello (const olsr::MessageHeader &msg, const Ipv4Address &receiverIface, const Ipv4Address &senderIface)
	Processes a HELLO message following RFC 3626 specification.
void	ProcessHna (const olsr::MessageHeader &msg, const Ipv4Address &senderIface)
	Processes a HNA message following RFC 3626 specification.
void	ProcessMid (const olsr::MessageHeader &msg, const Ipv4Address &senderIface)
	Processes a MID message following RFC 3626 specification.
void	ProcessTc (const olsr::MessageHeader &msg, const Ipv4Address &senderIface)
	Processes a TC message following RFC 3626 specification.
void	QueueMessage (const olsr::MessageHeader &message, Time delay)
	Enques an OLSR message which will be sent with a delay of (0, delay].
void	RecvOlsr (Ptr< Socket > socket)
void	RemoveAssociationTuple (const AssociationTuple &tuple)
	Removes a host network association tuple from the Association Set.
void	RemoveDuplicateTuple (const DuplicateTuple &tuple)
	Removes a duplicate tuple from the Duplicate Set.
void	RemoveEntry (const Ipv4Address &dest)
	Deletes the entry whose destination address is given.
void	RemoveIfaceAssocTuple (const IfaceAssocTuple &tuple)
	Removes an interface association tuple from the Interface Association Set.
void	RemoveLinkTuple (const LinkTuple &tuple)
	Removes a link tuple from the Link Set.
void	RemoveMprSelectorTuple (const MprSelectorTuple &tuple)
	Removes an MPR selector tuple from the MPR Selector Set.
void	RemoveNeighborTuple (const NeighborTuple &tuple)
	Removes a neighbor tuple from the Neighbor Set.
void	RemoveTopologyTuple (const TopologyTuple &tuple)
	Removes a topology tuple from the Topology Set.
void	RemoveTwoHopNeighborTuple (const TwoHopNeighborTuple &tuple)
	Removes a 2-hop neighbor tuple from the 2-hop Neighbor Set.
virtual bool	RouteInput (Ptr< const Packet > p, const Ipv4Header &header, Ptr< const NetDevice > idev, UnicastForwardCallback ucb, MulticastForwardCallback mcb, LocalDeliverCallback lcb, ErrorCallback ecb)
virtual Ptr< Ipv4Route >	RouteOutput (Ptr< Packet > p, const Ipv4Header &header, Ptr< NetDevice > oif, Socket::SocketErrno &sockerr)
void	RoutingTableComputation ()
	Creates the routing table of the node following RFC 3626 hints.
void	SendHello ()
	Creates a new OLSR HELLO message which is buffered for being sent later on.
void	SendHna ()
	Creates a new OLSR HNA message which is buffered for being sent later on.
void	SendMid ()
	Creates a new OLSR MID message which is buffered for being sent later on.
void	SendPacket (Ptr< Packet > packet, const MessageList &containedMessages)
void	SendQueuedMessages ()
	Creates as many OLSR packets as needed in order to send all buffered OLSR messages.
void	SendTc ()
	Creates a new OLSR TC message which is buffered for being sent later on.
virtual void	SetIpv4 (Ptr< Ipv4 > ipv4)
void	TcTimerExpire ()
	Sends a TC message (if there exists any MPR selector) and reschedules the TC timer.
void	TopologyTupleTimerExpire (Ipv4Address destAddr, Ipv4Address lastAddr)
	Removes tuple_ if expired. Else the timer is rescheduled to expire at tuple_->time().
bool	UsesNonOlsrOutgoingInterface (const Ipv4RoutingTableEntry &route)
	Tests whether or not the specified route uses a non-OLSR outgoing interface. Returns true if the outgoing interface of the specified route is a non-OLSR interface. Returns false otherwise.

Private Attributes
uint16_t	m_ansn
	Advertised Neighbor Set sequence number.
EventGarbageCollector	m_events
Time	m_helloInterval
	HELLO messages' emission interval.
Timer	m_helloTimer
Time	m_hnaInterval
	HNA messages' emission interval.
Ptr< Ipv4StaticRouting >	m_hnaRoutingTable
Timer	m_hnaTimer
std::set< uint32_t >	m_interfaceExclusions
Ptr< Ipv4 >	m_ipv4
bool	m_linkTupleTimerFirstTime
Ipv4Address	m_mainAddress
uint16_t	m_messageSequenceNumber
	Messages sequence number counter.
Time	m_midInterval
	MID messages' emission interval.
Timer	m_midTimer
uint16_t	m_packetSequenceNumber
	Packets sequence number counter.
olsr::MessageList	m_queuedMessages
	A list of pending messages which are buffered awaiting for being sent.
Timer	m_queuedMessagesTimer
Ptr< Ipv4StaticRouting >	m_routingTableAssociation
TracedCallback< uint32_t >	m_routingTableChanged
TracedCallback< const PacketHeader &, const MessageList & >	m_rxPacketTrace
std::map< Ptr< Socket > , Ipv4InterfaceAddress >	m_socketAddresses
OlsrState	m_state
	Internal state with all needed data structs.
std::map< Ipv4Address, RoutingTableEntry >	m_table
	Data structure for the routing table.
Time	m_tcInterval
	TC messages' emission interval.
Timer	m_tcTimer
TracedCallback< const PacketHeader &, const MessageList & >	m_txPacketTrace
Ptr< UniformRandomVariable >	m_uniformRandomVariable
	Provides uniform random variables.
uint8_t	m_willingness
	Willingness for forwarding packets on behalf of other nodes.

Friends
class	OlsrMprTestCase

Additional Inherited Members
Public Types inherited from ns3::Ipv4RoutingProtocol
typedef Callback< void, Ptr < const Packet >, const Ipv4Header &, Socket::SocketErrno >	ErrorCallback
typedef Callback< void, Ptr < const Packet >, const Ipv4Header &, uint32_t >	LocalDeliverCallback
typedef Callback< void, Ptr < Ipv4MulticastRoute >, Ptr < const Packet >, const Ipv4Header & >	MulticastForwardCallback
typedef Callback< void, Ptr < Ipv4Route >, Ptr< const Packet >, const Ipv4Header & >	UnicastForwardCallback

Detailed Description

OLSR routing protocol for IPv4.

Definition at line 78 of file olsr-routing-protocol.h.

Constructor & Destructor Documentation

ns3::olsr::RoutingProtocol::RoutingProtocol ( )

Definition at line 192 of file olsr-routing-protocol.cc.

References m_hnaRoutingTable, and m_uniformRandomVariable.

ns3::olsr::RoutingProtocol::~RoutingProtocol ( )

virtual

Definition at line 206 of file olsr-routing-protocol.cc.

Member Function Documentation

void ns3::olsr::RoutingProtocol::AddAssociationTuple ( const AssociationTuple & tuple )

private

Adds a host network association tuple to the Association Set.

Parameters

tuple the host network association tuple to be added.

Definition at line 2685 of file olsr-routing-protocol.cc.

References ns3::OlsrState::InsertAssociationTuple(), and m_state.

Referenced by ProcessHna().

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void ns3::olsr::RoutingProtocol::AddDuplicateTuple ( const DuplicateTuple & tuple )

private

Adds a duplicate tuple to the Duplicate Set.

Parameters

tuple the duplicate tuple to be added.

Definition at line 2368 of file olsr-routing-protocol.cc.

References ns3::OlsrState::InsertDuplicateTuple(), and m_state.

Referenced by ForwardDefault().

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void ns3::olsr::RoutingProtocol::AddEntry	(	const Ipv4Address &	dest,
		const Ipv4Address &	next,
		uint32_t	interface,
		uint32_t	distance
	)

private

Adds a new entry into the routing table.

If an entry for the given destination existed, it is deleted and freed.

Parameters

dest	address of the destination node.
next	address of the next hop node.
iface	address of the local interface.
dist	distance to the destination node.

Definition at line 3246 of file olsr-routing-protocol.cc.

References ns3::olsr::RoutingTableEntry::destAddr, ns3::olsr::RoutingTableEntry::distance, ns3::olsr::RoutingTableEntry::interface, m_mainAddress, m_table, ns3::olsr::RoutingTableEntry::nextAddr, NS_ASSERT, and NS_LOG_FUNCTION.

Referenced by AddEntry(), and RoutingTableComputation().

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void ns3::olsr::RoutingProtocol::AddEntry	(	const Ipv4Address &	dest,
		const Ipv4Address &	next,
		const Ipv4Address &	interfaceAddress,
		uint32_t	distance
	)

private

Definition at line 3265 of file olsr-routing-protocol.cc.

References AddEntry(), ns3::Ipv4::GetAddress(), ns3::Ipv4InterfaceAddress::GetLocal(), ns3::Ipv4::GetNAddresses(), ns3::Ipv4::GetNInterfaces(), m_ipv4, m_mainAddress, NS_ASSERT, and NS_LOG_FUNCTION.

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void ns3::olsr::RoutingProtocol::AddHostNetworkAssociation	(	Ipv4Address	networkAddr,
		Ipv4Mask	netmask
	)

Inject Association to be sent in HNA message.

Injects the specified (networkAddr, netmask) tuple in the list of local HNA associations to be sent by the node via HNA messages. If this tuple already exists, nothing is done.

Definition at line 1882 of file olsr-routing-protocol.cc.

References ns3::OlsrState::GetAssociations(), ns3::OlsrState::InsertAssociation(), m_state, ns3::olsr::Association::netmask, ns3::olsr::Association::networkAddr, and NS_LOG_INFO.

Referenced by SetRoutingTableAssociation().

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void ns3::olsr::RoutingProtocol::AddIfaceAssocTuple ( const IfaceAssocTuple & tuple )

private

Adds an interface association tuple to the Interface Association Set.

Parameters

tuple the interface association tuple to be added.

Definition at line 2651 of file olsr-routing-protocol.cc.

References ns3::OlsrState::InsertIfaceAssocTuple(), and m_state.

Referenced by DoStart(), and ProcessMid().

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void ns3::olsr::RoutingProtocol::AddMprSelectorTuple ( const MprSelectorTuple & tuple )

private

Adds an MPR selector tuple to the MPR Selector Set.

Advertised Neighbor Sequence Number (ANSN) is also updated.

Parameters

tuple the MPR selector tuple to be added.

Definition at line 2579 of file olsr-routing-protocol.cc.

References IncrementAnsn(), ns3::OlsrState::InsertMprSelectorTuple(), and m_state.

Referenced by PopulateMprSelectorSet().

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void ns3::olsr::RoutingProtocol::AddNeighborTuple ( const NeighborTuple & tuple )

private

Adds a neighbor tuple to the Neighbor Set.

Parameters

tuple the neighbor tuple to be added.

Definition at line 2501 of file olsr-routing-protocol.cc.

References IncrementAnsn(), ns3::OlsrState::InsertNeighborTuple(), and m_state.

Referenced by LinkTupleAdded().

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void ns3::olsr::RoutingProtocol::AddTopologyTuple ( const TopologyTuple & tuple )

private

Adds a topology tuple to the Topology Set.

Parameters

tuple the topology tuple to be added.

Definition at line 2615 of file olsr-routing-protocol.cc.

References ns3::OlsrState::InsertTopologyTuple(), and m_state.

Referenced by ProcessTc().

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void ns3::olsr::RoutingProtocol::AddTwoHopNeighborTuple ( const TwoHopNeighborTuple & tuple )

private

Adds a 2-hop neighbor tuple to the 2-hop Neighbor Set.

Parameters

tuple the 2-hop neighbor tuple to be added.

Definition at line 2537 of file olsr-routing-protocol.cc.

References ns3::OlsrState::InsertTwoHopNeighborTuple(), and m_state.

Referenced by PopulateTwoHopNeighborSet().

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int64_t ns3::olsr::RoutingProtocol::AssignStreams ( int64_t stream )

Assign a fixed random variable stream number to the random variables used by this model. Return the number of streams (possibly zero) that have been assigned.

Parameters

stream first stream index to use

Returns: the number of stream indices assigned by this model

Definition at line 3305 of file olsr-routing-protocol.cc.

References m_uniformRandomVariable, NS_LOG_FUNCTION, and ns3::RandomVariableStream::SetStream().

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void ns3::olsr::RoutingProtocol::AssociationTupleTimerExpire	(	Ipv4Address	gatewayAddr,
		Ipv4Address	networkAddr,
		Ipv4Mask	netmask
	)

private

Removes tuple_ if expired. Else timer is rescheduled to expire at tuple_->time().

Parameters

e	The event which has expired.

Definition at line 2957 of file olsr-routing-protocol.cc.

References DELAY, ns3::olsr::AssociationTuple::expirationTime, ns3::OlsrState::FindAssociationTuple(), m_events, m_state, ns3::Simulator::Now(), RemoveAssociationTuple(), ns3::Simulator::Schedule(), and ns3::EventGarbageCollector::Track().

Referenced by ProcessHna().

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void ns3::olsr::RoutingProtocol::Clear ( void )

private

Clears the routing table and frees the memory assigned to each one of its entries.

Definition at line 2980 of file olsr-routing-protocol.cc.

References m_table, and NS_LOG_FUNCTION_NOARGS.

Referenced by RoutingTableComputation().

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int ns3::olsr::RoutingProtocol::Degree ( NeighborTuple const & tuple )

private

This auxiliary function (defined in RFC 3626) is used for calculating the MPR Set.

Parameters

tuple the neighbor tuple which has the main address of the node we are going to calculate its degree to.

Returns: the degree of the node.

Definition at line 515 of file olsr-routing-protocol.cc.

References ns3::OlsrState::FindNeighborTuple(), ns3::OlsrState::GetTwoHopNeighbors(), m_state, ns3::olsr::NeighborTuple::neighborMainAddr, and ns3::olsr::TwoHopNeighborTuple::neighborMainAddr.

Referenced by MprComputation().

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void ns3::olsr::RoutingProtocol::DoDispose ( void )

private

Definition at line 233 of file olsr-routing-protocol.cc.

References m_hnaRoutingTable, m_ipv4, m_routingTableAssociation, and m_socketAddresses.

void ns3::olsr::RoutingProtocol::DoStart ( void )

protectedvirtual

This method is called only once by Object::Start. If the user calls Object::Start multiple times, DoStart is called only the first time.

Subclasses are expected to override this method and chain up to their parent's implementation once they are done. It is safe to call GetObject and AggregateObject from within this method.

Reimplemented from ns3::Object.

Definition at line 276 of file olsr-routing-protocol.cc.

References AddIfaceAssocTuple(), ns3::Socket::Bind(), ns3::Socket::BindToNetDevice(), ns3::Socket::CreateSocket(), ns3::Ipv4::GetAddress(), ns3::Ipv4InterfaceAddress::GetLocal(), GetMainAddress(), ns3::Ipv4::GetNetDevice(), ns3::Ipv4::GetNInterfaces(), ns3::UdpSocketFactory::GetTypeId(), HelloTimerExpire(), HnaTimerExpire(), ns3::olsr::IfaceAssocTuple::ifaceAddr, m_interfaceExclusions, m_ipv4, m_mainAddress, m_socketAddresses, ns3::olsr::IfaceAssocTuple::mainAddr, ns3::MakeCallback(), MidTimerExpire(), NS_ASSERT, NS_FATAL_ERROR, NS_LOG_DEBUG, OLSR_PORT_NUMBER, RecvOlsr(), ns3::Socket::SetAllowBroadcast(), ns3::Socket::SetRecvCallback(), and TcTimerExpire().

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void ns3::olsr::RoutingProtocol::Dump ( void )

Dump the neighbor table, two-hop neighbor table, and routing table to logging output (NS_LOG_DEBUG log level). If logging is disabled, this function does nothing.

Definition at line 3328 of file olsr-routing-protocol.cc.

References ns3::OlsrState::GetNeighbors(), ns3::OlsrState::GetTwoHopNeighbors(), m_mainAddress, m_state, m_table, ns3::Now(), and NS_LOG_DEBUG.

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void ns3::olsr::RoutingProtocol::DupTupleTimerExpire	(	Ipv4Address	address,
		uint16_t	sequenceNumber
	)

private

Removes tuple if expired. Else timer is rescheduled to expire at tuple.expirationTime.

The task of actually removing the tuple is left to the OLSR agent.

Parameters

tuple The tuple which has expired.

Definition at line 2782 of file olsr-routing-protocol.cc.

References DELAY, ns3::olsr::DuplicateTuple::expirationTime, ns3::OlsrState::FindDuplicateTuple(), m_events, m_state, ns3::Simulator::Now(), RemoveDuplicateTuple(), ns3::Simulator::Schedule(), and ns3::EventGarbageCollector::Track().

Referenced by ForwardDefault().

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bool ns3::olsr::RoutingProtocol::FindSendEntry	(	const RoutingTableEntry &	entry,
		RoutingTableEntry &	outEntry
	)		const

private

Finds the appropiate entry which must be used in order to forward a data packet to a next hop (given a destination).

Imagine a routing table like this: [A,B] [B,C] [C,C]; being each pair of the form [dest addr,next-hop addr]. In this case, if this function is invoked with [A,B] then pair [C,C] is returned because C is the next hop that must be used to forward a data packet destined to A. That is, C is a neighbor of this node, but B isn't. This function finds the appropiate neighbor for forwarding a packet.

Parameters

entry the routing table entry which indicates the destination node we are interested in.

Returns: the appropiate routing table entry which indicates the next hop which must be used for forwarding a data packet, or NULL if there is no such entry.

Definition at line 3033 of file olsr-routing-protocol.cc.

References ns3::olsr::RoutingTableEntry::destAddr, Lookup(), and ns3::olsr::RoutingTableEntry::nextAddr.

Referenced by RouteInput(), and RouteOutput().

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void ns3::olsr::RoutingProtocol::ForwardDefault	(	olsr::MessageHeader	olsrMessage,
		DuplicateTuple *	duplicated,
		const Ipv4Address &	localIface,
		const Ipv4Address &	senderAddress
	)

private

OLSR's default forwarding algorithm.

See RFC 3626 for details.

Parameters

p	the OLSR packet which has been received.
msg	the OLSR message which must be forwarded.
dup_tuple	NULL if the message has never been considered for forwarding, or a duplicate tuple in other case.
local_iface	the address of the interface where the message was received from.

Definition at line 1506 of file olsr-routing-protocol.cc.

References AddDuplicateTuple(), ns3::olsr::DuplicateTuple::address, DupTupleTimerExpire(), ns3::olsr::DuplicateTuple::expirationTime, ns3::OlsrState::FindMprSelectorTuple(), ns3::OlsrState::FindSymLinkTuple(), ns3::olsr::MessageHeader::GetHopCount(), GetMainAddress(), ns3::olsr::MessageHeader::GetMessageSequenceNumber(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::olsr::MessageHeader::GetTimeToLive(), ns3::olsr::DuplicateTuple::ifaceList, JITTER, m_mainAddress, m_state, ns3::Now(), ns3::Simulator::Now(), NS_LOG_LOGIC, OLSR_DUP_HOLD_TIME, QueueMessage(), ns3::olsr::DuplicateTuple::retransmitted, ns3::Simulator::Schedule(), ns3::olsr::DuplicateTuple::sequenceNumber, ns3::olsr::MessageHeader::SetHopCount(), and ns3::olsr::MessageHeader::SetTimeToLive().

Referenced by RecvOlsr().

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std::set<uint32_t> ns3::olsr::RoutingProtocol::GetInterfaceExclusions ( ) const

inline

Definition at line 121 of file olsr-routing-protocol.h.

References m_interfaceExclusions.

Ipv4Address ns3::olsr::RoutingProtocol::GetMainAddress ( Ipv4Address iface_addr ) const

private

Gets the main address associated with a given interface address.

Parameters

iface_addr the interface address.

Returns: the corresponding main address.

Definition at line 861 of file olsr-routing-protocol.cc.

References ns3::OlsrState::FindIfaceAssocTuple(), m_state, and ns3::olsr::IfaceAssocTuple::mainAddr.

Referenced by DoStart(), ForwardDefault(), LinkTupleAdded(), LinkTupleUpdated(), NeighborLoss(), PopulateMprSelectorSet(), PopulateTwoHopNeighborSet(), ProcessMid(), RemoveLinkTuple(), RoutingTableComputation(), and SendHello().

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uint16_t ns3::olsr::RoutingProtocol::GetMessageSequenceNumber ( )

inlineprivate

Increments message sequence number and returns the new value.

Definition at line 2710 of file olsr-routing-protocol.cc.

References m_messageSequenceNumber, and OLSR_MAX_SEQ_NUM.

Referenced by SendHello(), SendHna(), SendMid(), and SendTc().

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uint16_t ns3::olsr::RoutingProtocol::GetPacketSequenceNumber ( )

inlineprivate

Increments packet sequence number and returns the new value.

Definition at line 2703 of file olsr-routing-protocol.cc.

References m_packetSequenceNumber, and OLSR_MAX_SEQ_NUM.

Referenced by SendPacket().

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std::vector< RoutingTableEntry > ns3::olsr::RoutingProtocol::GetRoutingTableEntries ( ) const

Return the list of routing table entries discovered by OLSR

Definition at line 3293 of file olsr-routing-protocol.cc.

References m_table.

uint32_t ns3::olsr::RoutingProtocol::GetSize ( void ) const

inlineprivate

Definition at line 168 of file olsr-routing-protocol.h.

References m_table.

Referenced by RoutingTableComputation().

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TypeId ns3::olsr::RoutingProtocol::GetTypeId ( void )

static

This method returns the TypeId associated to ns3::olsr::RoutingProtocol.

This object is accessible through the following paths with Config::Set and Config::Connect:

/NodeList/[i]/$ns3::olsr::RoutingProtocol

Attributes defined for this type:

HelloInterval: HELLO messages emission interval.
- Set with class: TimeValue
- Underlying type: Time
- Initial value: +2000000000.0ns
- Flags: construct write read
TcInterval: TC messages emission interval.
- Set with class: TimeValue
- Underlying type: Time
- Initial value: +5000000000.0ns
- Flags: construct write read
MidInterval: MID messages emission interval. Normally it is equal to TcInterval.
- Set with class: TimeValue
- Underlying type: Time
- Initial value: +5000000000.0ns
- Flags: construct write read
HnaInterval: HNA messages emission interval. Normally it is equal to TcInterval.
- Set with class: TimeValue
- Underlying type: Time
- Initial value: +5000000000.0ns
- Flags: construct write read
Willingness: Willingness of a node to carry and forward traffic for other nodes.
- Set with class: ns3::EnumValue
- Underlying type: never|low|default|high|always
- Initial value: default
- Flags: construct write read

TraceSources defined for this type:

Rx: Receive OLSR packet.
Tx: Send OLSR packet.
RoutingTableChanged: The OLSR routing table has changed.

Reimplemented from ns3::Ipv4RoutingProtocol.

Definition at line 152 of file olsr-routing-protocol.cc.

References m_helloInterval, m_hnaInterval, m_midInterval, m_routingTableChanged, m_rxPacketTrace, m_tcInterval, m_txPacketTrace, m_willingness, ns3::MakeEnumAccessor(), ns3::MakeEnumChecker(), ns3::MakeTraceSourceAccessor(), OLSR_WILL_ALWAYS, OLSR_WILL_DEFAULT, OLSR_WILL_HIGH, OLSR_WILL_LOW, OLSR_WILL_NEVER, ns3::Seconds(), and ns3::TypeId::SetParent().

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void ns3::olsr::RoutingProtocol::HelloTimerExpire ( )

private

Sends a HELLO message and reschedules the HELLO timer.

Parameters

e	The event which has expired.

Definition at line 2722 of file olsr-routing-protocol.cc.

References m_helloInterval, m_helloTimer, ns3::Timer::Schedule(), and SendHello().

Referenced by DoStart(), and SetIpv4().

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void ns3::olsr::RoutingProtocol::HnaTimerExpire ( )

private

Sends an HNA message (if the node has associated hosts/networks) and reschedules the HNA timer.

Definition at line 2761 of file olsr-routing-protocol.cc.

References ns3::OlsrState::GetAssociations(), m_hnaInterval, m_hnaTimer, m_state, NS_LOG_DEBUG, ns3::Timer::Schedule(), and SendHna().

Referenced by DoStart(), and SetIpv4().

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void ns3::olsr::RoutingProtocol::IfaceAssocTupleTimerExpire ( Ipv4Address ifaceAddr )

private

Removes tuple_ if expired. Else timer is rescheduled to expire at tuple_->time().

Parameters

e	The event which has expired.

Definition at line 2934 of file olsr-routing-protocol.cc.

References DELAY, ns3::OlsrState::FindIfaceAssocTuple(), m_events, m_state, ns3::Simulator::Now(), RemoveIfaceAssocTuple(), ns3::Simulator::Schedule(), ns3::olsr::IfaceAssocTuple::time, and ns3::EventGarbageCollector::Track().

Referenced by ProcessMid().

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void ns3::olsr::RoutingProtocol::IncrementAnsn ( )

private

Definition at line 2566 of file olsr-routing-protocol.cc.

References m_ansn, and OLSR_MAX_SEQ_NUM.

Referenced by AddMprSelectorTuple(), AddNeighborTuple(), RemoveMprSelectorTuple(), and RemoveNeighborTuple().

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bool ns3::olsr::RoutingProtocol::IsMyOwnAddress ( const Ipv4Address & a ) const

private

Check that address is one of my interfaces.

Definition at line 3313 of file olsr-routing-protocol.cc.

References ns3::Ipv4InterfaceAddress::GetLocal(), and m_socketAddresses.

Referenced by RouteInput().

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void ns3::olsr::RoutingProtocol::LinkSensing	(	const olsr::MessageHeader &	msg,
		const olsr::MessageHeader::Hello &	hello,
		const Ipv4Address &	receiverIface,
		const Ipv4Address &	sender_iface
	)

private

Updates Link Set according to a new received HELLO message (following RFC 3626 specification). Neighbor Set is also updated if needed.

Definition at line 1987 of file olsr-routing-protocol.cc.

References DELAY, ns3::OlsrState::FindLinkTuple(), ns3::Time::GetSeconds(), ns3::olsr::MessageHeader::GetVTime(), ns3::OlsrState::InsertLinkTuple(), ns3::olsr::MessageHeader::Hello::linkMessages, LinkTupleAdded(), LinkTupleTimerExpire(), LinkTupleUpdated(), ns3::olsr::LinkTuple::localIfaceAddr, m_events, m_mainAddress, m_state, ns3::olsr::LinkTuple::neighborIfaceAddr, ns3::Now(), NS_ASSERT, NS_FATAL_ERROR, NS_LOG_DEBUG, NS_LOG_LOGIC, OLSR_ASYM_LINK, OLSR_LOST_LINK, OLSR_MPR_NEIGH, OLSR_NEIGHB_HOLD_TIME, OLSR_NOT_NEIGH, OLSR_SYM_LINK, OLSR_SYM_NEIGH, OLSR_UNSPEC_LINK, ns3::Simulator::Schedule(), ns3::Seconds(), ns3::olsr::LinkTuple::symTime, ns3::olsr::LinkTuple::time, ns3::EventGarbageCollector::Track(), and ns3::olsr::MessageHeader::Hello::willingness.

Referenced by ProcessHello().

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void ns3::olsr::RoutingProtocol::LinkTupleAdded	(	const LinkTuple &	tuple,
		uint8_t	willingness
	)

private

Definition at line 2395 of file olsr-routing-protocol.cc.

References AddNeighborTuple(), GetMainAddress(), ns3::olsr::LinkTuple::neighborIfaceAddr, ns3::olsr::NeighborTuple::neighborMainAddr, ns3::Simulator::Now(), ns3::olsr::NeighborTuple::status, ns3::olsr::NeighborTuple::STATUS_NOT_SYM, ns3::olsr::NeighborTuple::STATUS_SYM, ns3::olsr::LinkTuple::symTime, and ns3::olsr::NeighborTuple::willingness.

Referenced by LinkSensing(), and LinkTupleUpdated().

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void ns3::olsr::RoutingProtocol::LinkTupleTimerExpire ( Ipv4Address neighborIfaceAddr )

private

Removes tuple_ if expired. Else if symmetric time has expired then it is assumed a neighbor loss and agent_->nb_loss() is called. In this case the timer is rescheduled to expire at tuple_->time(). Otherwise the timer is rescheduled to expire at the minimum between tuple_->time() and tuple_->sym_time().

The task of actually removing the tuple is left to the OLSR agent.

Parameters

e	The event which has expired.

Definition at line 2814 of file olsr-routing-protocol.cc.

References DELAY, ns3::OlsrState::FindLinkTuple(), m_events, m_linkTupleTimerFirstTime, m_state, NeighborLoss(), ns3::Now(), RemoveLinkTuple(), ns3::Simulator::Schedule(), ns3::olsr::LinkTuple::symTime, ns3::olsr::LinkTuple::time, and ns3::EventGarbageCollector::Track().

Referenced by LinkSensing().

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void ns3::olsr::RoutingProtocol::LinkTupleUpdated	(	const LinkTuple &	tuple,
		uint8_t	willingness
	)

private

This function is invoked when a link tuple is updated. Its aim is to also update the corresponding neighbor tuple if it is needed.

Parameters

tuple the link tuple which has been updated.

Definition at line 2438 of file olsr-routing-protocol.cc.

References ns3::OlsrState::FindNeighborTuple(), ns3::OlsrState::GetLinks(), GetMainAddress(), LinkTupleAdded(), m_mainAddress, m_state, ns3::olsr::LinkTuple::neighborIfaceAddr, ns3::olsr::NeighborTuple::neighborMainAddr, ns3::Now(), ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_WARN, ns3::olsr::NeighborTuple::status, ns3::olsr::NeighborTuple::STATUS_NOT_SYM, ns3::olsr::NeighborTuple::STATUS_SYM, and ns3::olsr::LinkTuple::symTime.

Referenced by LinkSensing(), and NeighborLoss().

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bool ns3::olsr::RoutingProtocol::Lookup	(	const Ipv4Address &	dest,
		RoutingTableEntry &	outEntry
	)		const

private

Looks up an entry for the specified destination address.

Parameters

dest	destination address.
outEntry	output parameter to hold the routing entry result, if fuond

Returns: true if found, false if not found

Definition at line 3003 of file olsr-routing-protocol.cc.

References m_table.

Referenced by FindSendEntry(), RouteInput(), RouteOutput(), and RoutingTableComputation().

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void ns3::olsr::RoutingProtocol::MidTimerExpire ( )

private

Sends a MID message (if the node has more than one interface) and resets the MID timer.

Parameters

e	The event which has expired.

Definition at line 2751 of file olsr-routing-protocol.cc.

References m_midInterval, m_midTimer, ns3::Timer::Schedule(), and SendMid().

Referenced by DoStart(), and SetIpv4().

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void ns3::olsr::RoutingProtocol::MprComputation ( )

private

Computates MPR set of a node following RFC 3626 hints.

Definition at line 568 of file olsr-routing-protocol.cc.

References ns3::olsr::anonymous_namespace{olsr-routing-protocol.cc}::CoverTwoHopNeighbors(), Degree(), ns3::OlsrState::GetNeighbors(), ns3::OlsrState::GetTwoHopNeighbors(), m_mainAddress, m_state, ns3::olsr::NeighborTuple::neighborMainAddr, ns3::olsr::TwoHopNeighborTuple::neighborMainAddr, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_LOGIC, OLSR_WILL_ALWAYS, OLSR_WILL_NEVER, ns3::OlsrState::SetMprSet(), ns3::olsr::NeighborTuple::STATUS_SYM, and ns3::olsr::NeighborTuple::willingness.

Referenced by NeighborLoss(), and ProcessHello().

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void ns3::olsr::RoutingProtocol::MprSelTupleTimerExpire ( Ipv4Address mainAddr )

private

Removes tuple_ if expired. Else the timer is rescheduled to expire at tuple_->time().

The task of actually removing the tuple is left to the OLSR agent.

Parameters

e	The event which has expired.

Definition at line 2883 of file olsr-routing-protocol.cc.

References DELAY, ns3::olsr::MprSelectorTuple::expirationTime, ns3::OlsrState::FindMprSelectorTuple(), m_events, m_state, ns3::Simulator::Now(), RemoveMprSelectorTuple(), ns3::Simulator::Schedule(), and ns3::EventGarbageCollector::Track().

Referenced by PopulateMprSelectorSet().

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void ns3::olsr::RoutingProtocol::Nb2hopTupleTimerExpire	(	Ipv4Address	neighborMainAddr,
		Ipv4Address	twoHopNeighborAddr
	)

private

Removes tuple_ if expired. Else the timer is rescheduled to expire at tuple_->time().

The task of actually removing the tuple is left to the OLSR agent.

Parameters

e	The event which has expired.

Definition at line 2855 of file olsr-routing-protocol.cc.

References DELAY, ns3::olsr::TwoHopNeighborTuple::expirationTime, ns3::OlsrState::FindTwoHopNeighborTuple(), m_events, m_state, ns3::Simulator::Now(), RemoveTwoHopNeighborTuple(), ns3::Simulator::Schedule(), and ns3::EventGarbageCollector::Track().

Referenced by PopulateTwoHopNeighborSet().

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void ns3::olsr::RoutingProtocol::NeighborLoss ( const LinkTuple & tuple )

private

Performs all actions needed when a neighbor loss occurs.

Neighbor Set, 2-hop Neighbor Set, MPR Set and MPR Selector Set are updated.

Parameters

tuple link tuple with the information of the link to the neighbor which has been lost.

Definition at line 2349 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseMprSelectorTuples(), ns3::OlsrState::EraseTwoHopNeighborTuples(), GetMainAddress(), LinkTupleUpdated(), m_mainAddress, m_state, MprComputation(), ns3::olsr::LinkTuple::neighborIfaceAddr, ns3::Simulator::Now(), NS_LOG_DEBUG, OLSR_WILL_DEFAULT, and RoutingTableComputation().

Referenced by LinkTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::NotifyAddAddress	(	uint32_t	interface,
		Ipv4InterfaceAddress	address
	)

privatevirtual

Definition at line 3228 of file olsr-routing-protocol.cc.

void ns3::olsr::RoutingProtocol::NotifyInterfaceDown ( uint32_t interface )

privatevirtual

Definition at line 3225 of file olsr-routing-protocol.cc.

void ns3::olsr::RoutingProtocol::NotifyInterfaceUp ( uint32_t interface )

privatevirtual

Definition at line 3222 of file olsr-routing-protocol.cc.

void ns3::olsr::RoutingProtocol::NotifyRemoveAddress	(	uint32_t	interface,
		Ipv4InterfaceAddress	address
	)

privatevirtual

Definition at line 3231 of file olsr-routing-protocol.cc.

void ns3::olsr::RoutingProtocol::PopulateMprSelectorSet	(	const olsr::MessageHeader &	msg,
		const olsr::MessageHeader::Hello &	hello
	)

private

Updates the MPR Selector Set according to the information contained in a new received HELLO message (following RFC 3626).

Definition at line 2249 of file olsr-routing-protocol.cc.

References AddMprSelectorTuple(), DELAY, ns3::olsr::MprSelectorTuple::expirationTime, ns3::OlsrState::FindMprSelectorTuple(), GetMainAddress(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::olsr::MessageHeader::GetVTime(), ns3::olsr::MessageHeader::Hello::linkMessages, m_events, m_mainAddress, m_state, ns3::olsr::MprSelectorTuple::mainAddr, MprSelTupleTimerExpire(), ns3::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, OLSR_MPR_NEIGH, ns3::OlsrState::PrintMprSelectorSet(), ns3::Simulator::Schedule(), and ns3::EventGarbageCollector::Track().

Referenced by ProcessHello().

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void ns3::olsr::RoutingProtocol::PopulateNeighborSet	(	const olsr::MessageHeader &	msg,
		const olsr::MessageHeader::Hello &	hello
	)

private

Updates the Neighbor Set according to the information contained in a new received HELLO message (following RFC 3626).

Definition at line 2122 of file olsr-routing-protocol.cc.

References ns3::OlsrState::FindNeighborTuple(), ns3::olsr::MessageHeader::GetOriginatorAddress(), m_state, ns3::olsr::NeighborTuple::willingness, and ns3::olsr::MessageHeader::Hello::willingness.

Referenced by ProcessHello().

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void ns3::olsr::RoutingProtocol::PopulateTwoHopNeighborSet	(	const olsr::MessageHeader &	msg,
		const olsr::MessageHeader::Hello &	hello
	)

private

Updates the 2-hop Neighbor Set according to the information contained in a new received HELLO message (following RFC 3626).

Definition at line 2137 of file olsr-routing-protocol.cc.

References AddTwoHopNeighborTuple(), DELAY, ns3::OlsrState::EraseTwoHopNeighborTuples(), ns3::olsr::TwoHopNeighborTuple::expirationTime, ns3::OlsrState::FindTwoHopNeighborTuple(), ns3::OlsrState::GetLinks(), GetMainAddress(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::olsr::MessageHeader::GetVTime(), ns3::olsr::MessageHeader::Hello::linkMessages, m_events, m_mainAddress, m_state, Nb2hopTupleTimerExpire(), ns3::olsr::TwoHopNeighborTuple::neighborMainAddr, ns3::Now(), NS_LOG_DEBUG, NS_LOG_LOGIC, OLSR_MPR_NEIGH, OLSR_NOT_NEIGH, OLSR_SYM_NEIGH, ns3::Simulator::Schedule(), ns3::EventGarbageCollector::Track(), and ns3::olsr::TwoHopNeighborTuple::twoHopNeighborAddr.

Referenced by ProcessHello().

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void ns3::olsr::RoutingProtocol::PrintRoutingTable ( Ptr< OutputStreamWrapper > stream ) const

privatevirtual

Definition at line 250 of file olsr-routing-protocol.cc.

References ns3::Names::FindName(), ns3::Ipv4::GetNetDevice(), ns3::OutputStreamWrapper::GetStream(), m_hnaRoutingTable, m_ipv4, m_table, and ns3::Ipv4StaticRouting::PrintRoutingTable().

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void ns3::olsr::RoutingProtocol::ProcessHello	(	const olsr::MessageHeader &	msg,
		const Ipv4Address &	receiverIface,
		const Ipv4Address &	senderIface
	)

private

Processes a HELLO message following RFC 3626 specification.

Link sensing and population of the Neighbor Set, 2-hop Neighbor Set and MPR Selector Set are performed.

Parameters

msg	the OLSR message which contains the HELLO message.
receiver_iface	the address of the interface where the message was received from.
sender_iface	the address of the interface where the message was sent from.

Definition at line 1201 of file olsr-routing-protocol.cc.

References ns3::olsr::MessageHeader::GetHello(), ns3::OlsrState::GetLinks(), ns3::OlsrState::GetNeighbors(), ns3::OlsrState::GetTwoHopNeighbors(), LinkSensing(), m_mainAddress, m_state, MprComputation(), ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, PopulateMprSelectorSet(), PopulateNeighborSet(), and PopulateTwoHopNeighborSet().

Referenced by RecvOlsr().

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void ns3::olsr::RoutingProtocol::ProcessHna	(	const olsr::MessageHeader &	msg,
		const Ipv4Address &	senderIface
	)

private

Processes a HNA message following RFC 3626 specification.

The Host Network Association Set is updated (if needed) with the information of the received HNA message.

Parameters

msg	the OLSR message which contains the HNA message.
sender_iface	the address of the interface where the message was sent from.

Definition at line 1438 of file olsr-routing-protocol.cc.

References AddAssociationTuple(), ns3::olsr::MessageHeader::Hna::associations, AssociationTupleTimerExpire(), DELAY, ns3::olsr::AssociationTuple::expirationTime, ns3::OlsrState::FindAssociationTuple(), ns3::OlsrState::FindSymLinkTuple(), ns3::olsr::AssociationTuple::gatewayAddr, ns3::olsr::MessageHeader::GetHna(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::olsr::MessageHeader::GetVTime(), m_state, ns3::olsr::AssociationTuple::netmask, ns3::olsr::AssociationTuple::networkAddr, ns3::Now(), and ns3::Simulator::Schedule().

Referenced by RecvOlsr().

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void ns3::olsr::RoutingProtocol::ProcessMid	(	const olsr::MessageHeader &	msg,
		const Ipv4Address &	senderIface
	)

private

Processes a MID message following RFC 3626 specification.

The Interface Association Set is updated (if needed) with the information of the received MID message.

Parameters

msg	the OLSR message which contains the MID message.
sender_iface	the address of the interface where the message was sent from.

Definition at line 1359 of file olsr-routing-protocol.cc.

References AddIfaceAssocTuple(), DELAY, ns3::OlsrState::FindSymLinkTuple(), ns3::OlsrState::GetIfaceAssocSetMutable(), GetMainAddress(), ns3::olsr::MessageHeader::GetMid(), ns3::OlsrState::GetNeighbors(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::OlsrState::GetTwoHopNeighbors(), ns3::olsr::MessageHeader::GetVTime(), ns3::olsr::IfaceAssocTuple::ifaceAddr, IfaceAssocTupleTimerExpire(), ns3::olsr::MessageHeader::Mid::interfaceAddresses, m_mainAddress, m_state, ns3::olsr::IfaceAssocTuple::mainAddr, ns3::Now(), NS_LOG_DEBUG, NS_LOG_LOGIC, ns3::Simulator::Schedule(), and ns3::olsr::IfaceAssocTuple::time.

Referenced by RecvOlsr().

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void ns3::olsr::RoutingProtocol::ProcessTc	(	const olsr::MessageHeader &	msg,
		const Ipv4Address &	senderIface
	)

private

Processes a TC message following RFC 3626 specification.

The Topology Set is updated (if needed) with the information of the received TC message.

Parameters

msg	the OLSR message which contains the TC message.
sender_iface	the address of the interface where the message was sent from.

Definition at line 1264 of file olsr-routing-protocol.cc.

References AddTopologyTuple(), ns3::olsr::MessageHeader::Tc::ansn, DELAY, ns3::olsr::TopologyTuple::destAddr, ns3::OlsrState::EraseOlderTopologyTuples(), ns3::olsr::TopologyTuple::expirationTime, ns3::OlsrState::FindNewerTopologyTuple(), ns3::OlsrState::FindSymLinkTuple(), ns3::OlsrState::FindTopologyTuple(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::olsr::MessageHeader::GetTc(), ns3::OlsrState::GetTopologySet(), ns3::olsr::MessageHeader::GetVTime(), ns3::olsr::TopologyTuple::lastAddr, m_events, m_mainAddress, m_state, ns3::olsr::MessageHeader::Tc::neighborAddresses, ns3::Now(), ns3::Simulator::Now(), NS_LOG_DEBUG, ns3::Simulator::Schedule(), ns3::olsr::TopologyTuple::sequenceNumber, TopologyTupleTimerExpire(), and ns3::EventGarbageCollector::Track().

Referenced by RecvOlsr().

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void ns3::olsr::RoutingProtocol::QueueMessage	(	const olsr::MessageHeader &	message,
		Time	delay
	)

private

Enques an OLSR message which will be sent with a delay of (0, delay].

This buffering system is used in order to piggyback several OLSR messages in a same OLSR packet.

Parameters

msg	the OLSR message which must be sent.
delay	maximum delay the OLSR message is going to be buffered.

Definition at line 1581 of file olsr-routing-protocol.cc.

References ns3::Timer::IsRunning(), m_queuedMessages, m_queuedMessagesTimer, ns3::Timer::Schedule(), and ns3::Timer::SetDelay().

Referenced by ForwardDefault(), SendHello(), SendHna(), SendMid(), and SendTc().

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void ns3::olsr::RoutingProtocol::RecvOlsr ( Ptr< Socket > socket )

private

Definition at line 361 of file olsr-routing-protocol.cc.

References ns3::InetSocketAddress::ConvertFrom(), ns3::OlsrState::FindDuplicateTuple(), ForwardDefault(), ns3::InetSocketAddress::GetIpv4(), ns3::olsr::MessageHeader::GetMessageSequenceNumber(), ns3::olsr::MessageHeader::GetMessageType(), ns3::olsr::MessageHeader::GetOriginatorAddress(), ns3::olsr::PacketHeader::GetPacketLength(), ns3::InetSocketAddress::GetPort(), ns3::olsr::PacketHeader::GetSerializedSize(), ns3::olsr::MessageHeader::GetSerializedSize(), ns3::olsr::MessageHeader::GetTimeToLive(), ns3::olsr::MessageHeader::HELLO_MESSAGE, ns3::olsr::MessageHeader::HNA_MESSAGE, ns3::olsr::DuplicateTuple::ifaceList, m_mainAddress, m_rxPacketTrace, m_socketAddresses, m_state, ns3::olsr::MessageHeader::MID_MESSAGE, ns3::Simulator::Now(), NS_ASSERT, NS_LOG_DEBUG, OLSR_PORT_NUMBER, ProcessHello(), ProcessHna(), ProcessMid(), ProcessTc(), ns3::Socket::RecvFrom(), RoutingTableComputation(), and ns3::olsr::MessageHeader::TC_MESSAGE.

Referenced by DoStart().

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void ns3::olsr::RoutingProtocol::RemoveAssociationTuple ( const AssociationTuple & tuple )

private

Removes a host network association tuple from the Association Set.

Parameters

tuple the host network association tuple to be removed.

Definition at line 2696 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseAssociationTuple(), and m_state.

Referenced by AssociationTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::RemoveDuplicateTuple ( const DuplicateTuple & tuple )

private

Removes a duplicate tuple from the Duplicate Set.

Parameters

tuple the duplicate tuple to be removed.

Definition at line 2384 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseDuplicateTuple(), and m_state.

Referenced by DupTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::RemoveEntry ( const Ipv4Address & dest )

private

Deletes the entry whose destination address is given.

Parameters

dest	address of the destination node.

Definition at line 2991 of file olsr-routing-protocol.cc.

References m_table.

void ns3::olsr::RoutingProtocol::RemoveHostNetworkAssociation	(	Ipv4Address	networkAddr,
		Ipv4Mask	netmask
	)

Removes Association sent in HNA message.

Removes the specified (networkAddr, netmask) tuple from the list of local HNA associations to be sent by the node via HNA messages. If this tuple does not exist, nothing is done (see "OlsrState::EraseAssociation()").

Definition at line 1908 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseAssociation(), m_state, and NS_LOG_INFO.

Referenced by SetRoutingTableAssociation().

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void ns3::olsr::RoutingProtocol::RemoveIfaceAssocTuple ( const IfaceAssocTuple & tuple )

private

Removes an interface association tuple from the Interface Association Set.

Parameters

tuple the interface association tuple to be removed.

Definition at line 2668 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseIfaceAssocTuple(), and m_state.

Referenced by IfaceAssocTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::RemoveLinkTuple ( const LinkTuple & tuple )

private

Removes a link tuple from the Link Set.

Parameters

tuple the link tuple to be removed.

Definition at line 2420 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseLinkTuple(), ns3::OlsrState::EraseNeighborTuple(), GetMainAddress(), m_mainAddress, m_state, ns3::olsr::LinkTuple::neighborIfaceAddr, ns3::Simulator::Now(), and NS_LOG_DEBUG.

Referenced by LinkTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::RemoveMprSelectorTuple ( const MprSelectorTuple & tuple )

private

Removes an MPR selector tuple from the MPR Selector Set.

Advertised Neighbor Sequence Number (ANSN) is also updated.

Parameters

tuple the MPR selector tuple to be removed.

Definition at line 2598 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseMprSelectorTuple(), IncrementAnsn(), and m_state.

Referenced by MprSelTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::RemoveNeighborTuple ( const NeighborTuple & tuple )

private

Removes a neighbor tuple from the Neighbor Set.

Parameters

tuple the neighbor tuple to be removed.

Definition at line 2519 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseNeighborTuple(), IncrementAnsn(), and m_state.

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void ns3::olsr::RoutingProtocol::RemoveTopologyTuple ( const TopologyTuple & tuple )

private

Removes a topology tuple from the Topology Set.

Parameters

tuple the topology tuple to be removed.

Definition at line 2633 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseTopologyTuple(), and m_state.

Referenced by TopologyTupleTimerExpire().

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void ns3::olsr::RoutingProtocol::RemoveTwoHopNeighborTuple ( const TwoHopNeighborTuple & tuple )

private

Removes a 2-hop neighbor tuple from the 2-hop Neighbor Set.

Parameters

tuple the 2-hop neighbor tuple to be removed.

Definition at line 2554 of file olsr-routing-protocol.cc.

References ns3::OlsrState::EraseTwoHopNeighborTuple(), and m_state.

Referenced by Nb2hopTupleTimerExpire().

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bool ns3::olsr::RoutingProtocol::RouteInput	(	Ptr< const Packet >	p,
		const Ipv4Header &	header,
		Ptr< const NetDevice >	idev,
		UnicastForwardCallback	ucb,
		MulticastForwardCallback	mcb,
		LocalDeliverCallback	lcb,
		ErrorCallback	ecb
	)

privatevirtual

Definition at line 3120 of file olsr-routing-protocol.cc.

References FindSendEntry(), ns3::Ipv4::GetAddress(), ns3::Ipv4Header::GetDestination(), ns3::Node::GetId(), ns3::Ipv4::GetInterfaceForDevice(), ns3::Ipv4InterfaceAddress::GetLocal(), ns3::Ipv4::GetNAddresses(), ns3::Ipv4::GetNetDevice(), ns3::Object::GetObject(), ns3::Ipv4Header::GetSource(), ns3::olsr::RoutingTableEntry::interface, ns3::Ipv4::IsDestinationAddress(), IsMyOwnAddress(), ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), Lookup(), m_hnaRoutingTable, m_ipv4, m_mainAddress, m_table, ns3::olsr::RoutingTableEntry::nextAddr, NS_ASSERT, NS_FATAL_ERROR, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::Ipv4StaticRouting::RouteInput(), ns3::Ipv4Route::SetDestination(), ns3::Ipv4Route::SetGateway(), ns3::Ipv4Route::SetOutputDevice(), and ns3::Ipv4Route::SetSource().

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Ptr< Ipv4Route > ns3::olsr::RoutingProtocol::RouteOutput	(	Ptr< Packet >	p,
		const Ipv4Header &	header,
		Ptr< NetDevice >	oif,
		Socket::SocketErrno &	sockerr
	)

privatevirtual

void ns3::olsr::RoutingProtocol::RoutingTableComputation ( )

private

Creates the routing table of the node following RFC 3626 hints.

Definition at line 876 of file olsr-routing-protocol.cc.

References AddEntry(), ns3::Ipv4StaticRouting::AddNetworkRouteTo(), Clear(), ns3::olsr::TopologyTuple::destAddr, ns3::olsr::RoutingTableEntry::distance, ns3::OlsrState::FindSymNeighborTuple(), ns3::olsr::AssociationTuple::gatewayAddr, ns3::OlsrState::GetAssociations(), ns3::OlsrState::GetAssociationSet(), ns3::Ipv4RoutingTableEntry::GetDestNetwork(), ns3::Ipv4RoutingTableEntry::GetDestNetworkMask(), ns3::OlsrState::GetIfaceAssocSet(), ns3::OlsrState::GetLinks(), GetMainAddress(), ns3::Ipv4StaticRouting::GetMetric(), ns3::OlsrState::GetNeighbors(), ns3::Ipv4StaticRouting::GetNRoutes(), ns3::Ipv4StaticRouting::GetRoute(), GetSize(), ns3::OlsrState::GetTopologySet(), ns3::OlsrState::GetTwoHopNeighbors(), ns3::olsr::IfaceAssocTuple::ifaceAddr, ns3::olsr::RoutingTableEntry::interface, ns3::olsr::TopologyTuple::lastAddr, ns3::olsr::LinkTuple::localIfaceAddr, Lookup(), m_hnaRoutingTable, m_mainAddress, m_routingTableChanged, m_state, ns3::olsr::IfaceAssocTuple::mainAddr, ns3::olsr::LinkTuple::neighborIfaceAddr, ns3::olsr::NeighborTuple::neighborMainAddr, ns3::olsr::TwoHopNeighborTuple::neighborMainAddr, ns3::olsr::Association::netmask, ns3::olsr::AssociationTuple::netmask, ns3::olsr::Association::networkAddr, ns3::olsr::AssociationTuple::networkAddr, ns3::olsr::RoutingTableEntry::nextAddr, ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_LOGIC, OLSR_WILL_NEVER, ns3::Ipv4StaticRouting::RemoveRoute(), ns3::olsr::NeighborTuple::status, ns3::olsr::NeighborTuple::STATUS_SYM, ns3::olsr::LinkTuple::time, and ns3::olsr::TwoHopNeighborTuple::twoHopNeighborAddr.

Referenced by NeighborLoss(), and RecvOlsr().

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void ns3::olsr::RoutingProtocol::SendHello ( )

private

Creates a new OLSR HELLO message which is buffered for being sent later on.

Definition at line 1662 of file olsr-routing-protocol.cc.

Referenced by HelloTimerExpire().

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void ns3::olsr::RoutingProtocol::SendHna ( )

private

Creates a new OLSR HNA message which is buffered for being sent later on.

Definition at line 1844 of file olsr-routing-protocol.cc.

References ns3::olsr::MessageHeader::Hna::associations, ns3::OlsrState::GetAssociations(), ns3::olsr::MessageHeader::GetHna(), GetMessageSequenceNumber(), JITTER, m_mainAddress, m_state, OLSR_HNA_HOLD_TIME, QueueMessage(), ns3::olsr::MessageHeader::SetHopCount(), ns3::olsr::MessageHeader::SetMessageSequenceNumber(), ns3::olsr::MessageHeader::SetOriginatorAddress(), ns3::olsr::MessageHeader::SetTimeToLive(), and ns3::olsr::MessageHeader::SetVTime().

Referenced by HnaTimerExpire().

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void ns3::olsr::RoutingProtocol::SendMid ( )

private

Creates a new OLSR MID message which is buffered for being sent later on.

Definition at line 1800 of file olsr-routing-protocol.cc.

References ns3::Ipv4::GetAddress(), ns3::Ipv4InterfaceAddress::GetLocal(), GetMessageSequenceNumber(), ns3::olsr::MessageHeader::GetMid(), ns3::Ipv4::GetNInterfaces(), ns3::olsr::MessageHeader::Mid::interfaceAddresses, JITTER, m_interfaceExclusions, m_ipv4, m_mainAddress, OLSR_MID_HOLD_TIME, QueueMessage(), ns3::olsr::MessageHeader::SetHopCount(), ns3::olsr::MessageHeader::SetMessageSequenceNumber(), ns3::olsr::MessageHeader::SetOriginatorAddress(), ns3::olsr::MessageHeader::SetTimeToLive(), and ns3::olsr::MessageHeader::SetVTime().

Referenced by MidTimerExpire().

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void ns3::olsr::RoutingProtocol::SendPacket	(	Ptr< Packet >	packet,
		const MessageList &	containedMessages
	)

private

Definition at line 1592 of file olsr-routing-protocol.cc.

References ns3::Packet::AddHeader(), GetPacketSequenceNumber(), ns3::olsr::PacketHeader::GetSerializedSize(), ns3::Packet::GetSize(), ns3::Ipv4Address::GetSubnetDirectedBroadcast(), m_mainAddress, m_socketAddresses, m_txPacketTrace, NS_LOG_DEBUG, OLSR_PORT_NUMBER, ns3::olsr::PacketHeader::SetPacketLength(), and ns3::olsr::PacketHeader::SetPacketSequenceNumber().

Referenced by SendQueuedMessages().

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void ns3::olsr::RoutingProtocol::SendQueuedMessages ( )

private

Creates as many OLSR packets as needed in order to send all buffered OLSR messages.

Maximum number of messages which can be contained in an OLSR packet is dictated by OLSR_MAX_MSGS constant.

Definition at line 1623 of file olsr-routing-protocol.cc.

References ns3::Packet::AddAtEnd(), ns3::Packet::AddHeader(), ns3::Packet::GetSize(), m_mainAddress, m_queuedMessages, NS_LOG_DEBUG, OLSR_MAX_MSGS, and SendPacket().

Referenced by SetIpv4().

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void ns3::olsr::RoutingProtocol::SendTc ( )

private

Creates a new OLSR TC message which is buffered for being sent later on.

Definition at line 1773 of file olsr-routing-protocol.cc.

References ns3::olsr::MessageHeader::Tc::ansn, GetMessageSequenceNumber(), ns3::OlsrState::GetMprSelectors(), ns3::olsr::MessageHeader::GetTc(), JITTER, m_ansn, m_mainAddress, m_state, ns3::olsr::MessageHeader::Tc::neighborAddresses, NS_LOG_FUNCTION, OLSR_TOP_HOLD_TIME, QueueMessage(), ns3::olsr::MessageHeader::SetHopCount(), ns3::olsr::MessageHeader::SetMessageSequenceNumber(), ns3::olsr::MessageHeader::SetOriginatorAddress(), ns3::olsr::MessageHeader::SetTimeToLive(), and ns3::olsr::MessageHeader::SetVTime().

Referenced by TcTimerExpire().

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void ns3::olsr::RoutingProtocol::SetInterfaceExclusions ( std::set< uint32_t > exceptions )

Definition at line 353 of file olsr-routing-protocol.cc.

References m_interfaceExclusions.

void ns3::olsr::RoutingProtocol::SetIpv4 ( Ptr< Ipv4 > ipv4 )

privatevirtual

Definition at line 211 of file olsr-routing-protocol.cc.

References HelloTimerExpire(), HnaTimerExpire(), m_ansn, m_helloTimer, m_hnaRoutingTable, m_hnaTimer, m_ipv4, m_linkTupleTimerFirstTime, m_messageSequenceNumber, m_midTimer, m_packetSequenceNumber, m_queuedMessagesTimer, m_tcTimer, MidTimerExpire(), NS_ASSERT, NS_LOG_DEBUG, OLSR_MAX_SEQ_NUM, SendQueuedMessages(), ns3::Timer::SetFunction(), ns3::Ipv4StaticRouting::SetIpv4(), and TcTimerExpire().

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void ns3::olsr::RoutingProtocol::SetMainInterface ( uint32_t interface )

Set the OLSR main address to the first address on the indicated interface.

Parameters

interface IPv4 interface index

Definition at line 348 of file olsr-routing-protocol.cc.

References ns3::Ipv4::GetAddress(), ns3::Ipv4InterfaceAddress::GetLocal(), m_ipv4, and m_mainAddress.

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void ns3::olsr::RoutingProtocol::SetRoutingTableAssociation ( Ptr< Ipv4StaticRouting > routingTable )

Inject Associations from an Ipv4StaticRouting instance.

Associates the specified Ipv4StaticRouting routing table to the OLSR routing protocol. Entries from this associated routing table that use non-olsr outgoing interfaces are added to the list of local HNA associations so that they are included in HNA messages sent by the node. If this method is called more than once, entries from the old association are deleted before entries from the new one are added.

Parameters

routingTable the Ipv4StaticRouting routing table to be associated.

Definition at line 1925 of file olsr-routing-protocol.cc.

References AddHostNetworkAssociation(), ns3::OlsrState::GetAssociations(), ns3::Ipv4RoutingTableEntry::GetDestNetwork(), ns3::Ipv4RoutingTableEntry::GetDestNetworkMask(), ns3::Ipv4StaticRouting::GetNRoutes(), ns3::Ipv4StaticRouting::GetRoute(), m_routingTableAssociation, m_state, NS_LOG_DEBUG, NS_LOG_INFO, RemoveHostNetworkAssociation(), and UsesNonOlsrOutgoingInterface().

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void ns3::olsr::RoutingProtocol::TcTimerExpire ( )

private

Sends a TC message (if there exists any MPR selector) and reschedules the TC timer.

Parameters

e	The event which has expired.

Definition at line 2733 of file olsr-routing-protocol.cc.

References ns3::OlsrState::GetMprSelectors(), m_state, m_tcInterval, m_tcTimer, NS_LOG_DEBUG, ns3::Timer::Schedule(), and SendTc().

Referenced by DoStart(), and SetIpv4().

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void ns3::olsr::RoutingProtocol::TopologyTupleTimerExpire	(	Ipv4Address	destAddr,
		Ipv4Address	lastAddr
	)

private

Removes tuple_ if expired. Else the timer is rescheduled to expire at tuple_->time().

The task of actually removing the tuple is left to the OLSR agent.

Parameters

e	The event which has expired.

Definition at line 2910 of file olsr-routing-protocol.cc.

References DELAY, ns3::olsr::TopologyTuple::destAddr, ns3::olsr::TopologyTuple::expirationTime, ns3::OlsrState::FindTopologyTuple(), ns3::olsr::TopologyTuple::lastAddr, m_events, m_state, ns3::Simulator::Now(), RemoveTopologyTuple(), ns3::Simulator::Schedule(), and ns3::EventGarbageCollector::Track().

Referenced by ProcessTc().

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bool ns3::olsr::RoutingProtocol::UsesNonOlsrOutgoingInterface ( const Ipv4RoutingTableEntry & route )

private

Tests whether or not the specified route uses a non-OLSR outgoing interface. Returns true if the outgoing interface of the specified route is a non-OLSR interface. Returns false otherwise.

Definition at line 1975 of file olsr-routing-protocol.cc.

References ns3::Ipv4RoutingTableEntry::GetInterface(), and m_interfaceExclusions.

Referenced by SetRoutingTableAssociation().

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