quisp::modules::routing_daemon::RoutingDaemon Class Reference

#include <RoutingDaemon.h>

Inheritance diagram for quisp::modules::routing_daemon::RoutingDaemon:

Collaboration diagram for quisp::modules::routing_daemon::RoutingDaemon:

Public Member Functions
	RoutingDaemon ()
	RoutingDaemon.
int	getNumEndNodes () override
int	findQNicAddrByDestAddr (int destAddr) override
Public Member Functions inherited from quisp::modules::IRoutingDaemon

Protected Member Functions
void	generateRoutingTable ()
void	generateRoutingTable (cTopology *topo)
int	getQNicAddr (const cGate *const parentModuleGate)
void	initialize (int stage) override
void	handleMessage (cMessage *msg) override
int	numInitStages () const override
size_t	getNumNeighbors ()
	returns the number of neighbors of this node
void	ospfHandleHelloPacket (const OspfHelloPacket *const pk)
void	ospfInitializeRoutingDaemon ()
void	ospfSendHelloPacketToNeighbor (NodeAddr neighbor)
bool	ospfMyAddressIsRecognizedByNeighbor (const OspfHelloPacket *const msg)
void	ospfRegisterNeighbor (const OspfPacket *const pk, OspfState state)
bool	ospfNeighborIsRegistered (NodeAddr address) const
void	ospfHandleDbdPacket (const OspfDbdPacket *const pk)
void	ospfExStartState (const OspfDbdPacket *const pk)
	Exchange packets to decide who the master or slave is.
void	ospfSendExstartDbdPacket (NodeAddr neighbor)
void	ospfSlaveInitiateExchangeState (NodeAddr dest)
void	ospfMasterEnterExchangeState (NodeAddr dest)
void	ospfSendLsdbSummary (NodeAddr destination, bool i_am_master=false)
void	ospfSendLinkStateRequest (NodeAddr dst, const RouterIds &missing_lsa_ids)
void	ospfHandleLinkStateRequest (const OspfLsrPacket *const pk)
void	ospfHandleLinkStateUpdate (const OspfLsuPacket *const pk)
void	ospfUpdateLinkStateDatabase (const OspfLsuPacket *const msg)
void	ospfSendUpdatedLsdbToNeighboringRouters (NodeAddr source_of_updated_lsdb)
void	ospfUpdateMyAddressLsaInLsdb ()

Protected Attributes
NodeAddr	my_address
RoutingTable	qrtable
utils::ComponentProvider	provider
ospf::NeighborTable	neighbor_table
LinkStateDatabase	link_state_database

Private Attributes
bool	run_ospf

Constructor & Destructor Documentation

RoutingDaemon()

quisp::modules::routing_daemon::RoutingDaemon::RoutingDaemon

(

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RoutingDaemon.

The RoutingDaemon is one of the five key modules in the software for a quantum repeater/router (qrsa). It will be responsible for running dynamic routing protocols, such as qOSPF, qBGP, etc.

It communicates with other RoutingDaemons, in other nodes on the network, as in the classical Internet. Internally, its role is to keep track of the QNICs and the links by communicating with the HardwareMonitor, and to provide information to the ConnectionManager when requested. (There is also one place where the RuleEngine needs access to information maintained by the RD.)

The above is the intended design.

TODO In fact, the RoutingDaemon as it exists today uses special, internal OMNeT++ magic to directly access the network topology, as stored in the simulator, rather than dynamically discovering it. That should be corrected.

At the moment, the RD is independent of the end-to-end reservation of resources, as dictated by the multiplexing (muxing) discpline in use. This means that it always returns a single, best path to connect to the requested node. A consequence is that ConnectionSetupRequest can fail if the resource management discipline is fully blocking, as in circuit switching, which is the first discipline we are implementing.

TODO Also, this code is built as a Module, via the Define_Module call; the other important modules are classes. That distinction needs to be addressed.

Member Function Documentation

findQNicAddrByDestAddr()

int quisp::modules::routing_daemon::RoutingDaemon::findQNicAddrByDestAddr ( int destAddr )

overridevirtual

This is the only routine, at the moment, with any outside contact. Rather than exchanging a message with those who need this information (ConnectionManager, mainly, and in one case RuleEngine), this is a direct call that they make.

Implements quisp::modules::IRoutingDaemon.

generateRoutingTable() [1/2]

void RoutingDaemon::generateRoutingTable ( )

protected

generateRoutingTable() [2/2]

void RoutingDaemon::generateRoutingTable ( cTopology * topo )

protected

getNumEndNodes()

int RoutingDaemon::getNumEndNodes ( )

overridevirtual

Implements quisp::modules::IRoutingDaemon.

getNumNeighbors()

size_t quisp::modules::routing_daemon::RoutingDaemon::getNumNeighbors ( )

protected

returns the number of neighbors of this node

we are assuming two nodes are connected by quantum channel if and only if they are connected by classical channel TODO: we need to change this function if above assumption no longer holds

Returns

size_t

getQNicAddr()

int RoutingDaemon::getQNicAddr ( const cGate *const parentModuleGate )

protected

handleMessage()

void quisp::modules::routing_daemon::RoutingDaemon::handleMessage ( cMessage * msg )

overrideprotected

Once we begin using dynamic routing protocols, this is where the messages will be handled. This perhaps will also be how we communicate with the other important daemons in the qrsa. TODO Handle dynamic routing protocol messages.

initialize()

void RoutingDaemon::initialize ( int stage )

overrideprotected

numInitStages()

int quisp::modules::routing_daemon::RoutingDaemon::numInitStages ( ) const

inlineoverrideprotected

ospfExStartState()

void quisp::modules::routing_daemon::RoutingDaemon::ospfExStartState ( const OspfDbdPacket *const pk )

protected

Exchange packets to decide who the master or slave is.

Master/slave is decided based on the number of router address/ID. Whichever that has the bigger router address becomes the master Slave sends its Summary LSDB to Master Master send empty DBD packet until it receives Summary LSDB from Slave

ospfHandleDbdPacket()

void RoutingDaemon::ospfHandleDbdPacket ( const OspfDbdPacket *const pk )

protected

ospfHandleHelloPacket()

void RoutingDaemon::ospfHandleHelloPacket ( const OspfHelloPacket *const pk )

protected

ospfHandleLinkStateRequest()

void RoutingDaemon::ospfHandleLinkStateRequest ( const OspfLsrPacket *const pk )

protected

ospfHandleLinkStateUpdate()

void RoutingDaemon::ospfHandleLinkStateUpdate ( const OspfLsuPacket *const pk )

protected

ospfInitializeRoutingDaemon()

void RoutingDaemon::ospfInitializeRoutingDaemon ( )

protected

ospfMasterEnterExchangeState()

void RoutingDaemon::ospfMasterEnterExchangeState ( NodeAddr dest )

protected

ospfMyAddressIsRecognizedByNeighbor()

bool RoutingDaemon::ospfMyAddressIsRecognizedByNeighbor ( const OspfHelloPacket *const msg )

protected

ospfNeighborIsRegistered()

bool RoutingDaemon::ospfNeighborIsRegistered ( NodeAddr address ) const

protected

ospfRegisterNeighbor()

void RoutingDaemon::ospfRegisterNeighbor ( const OspfPacket *const pk, OspfState state )

protected

ospfSendExstartDbdPacket()

void RoutingDaemon::ospfSendExstartDbdPacket ( NodeAddr neighbor )

protected

ospfSendHelloPacketToNeighbor()

void RoutingDaemon::ospfSendHelloPacketToNeighbor ( NodeAddr neighbor )

protected

ospfSendLinkStateRequest()

void RoutingDaemon::ospfSendLinkStateRequest ( NodeAddr dst, const RouterIds & missing_lsa_ids )

protected

ospfSendLsdbSummary()

void RoutingDaemon::ospfSendLsdbSummary ( NodeAddr destination, bool i_am_master = false )

protected

ospfSendUpdatedLsdbToNeighboringRouters()

void RoutingDaemon::ospfSendUpdatedLsdbToNeighboringRouters ( NodeAddr source_of_updated_lsdb )

protected

ospfSlaveInitiateExchangeState()

void RoutingDaemon::ospfSlaveInitiateExchangeState ( NodeAddr dest )

protected

ospfUpdateLinkStateDatabase()

void RoutingDaemon::ospfUpdateLinkStateDatabase ( const OspfLsuPacket *const msg )

protected

ospfUpdateMyAddressLsaInLsdb()

void RoutingDaemon::ospfUpdateMyAddressLsaInLsdb ( )

protected

Member Data Documentation

link_state_database

LinkStateDatabase quisp::modules::routing_daemon::RoutingDaemon::link_state_database

protected

my_address

NodeAddr quisp::modules::routing_daemon::RoutingDaemon::my_address

protected

neighbor_table

ospf::NeighborTable quisp::modules::routing_daemon::RoutingDaemon::neighbor_table

protected

provider

utils::ComponentProvider quisp::modules::routing_daemon::RoutingDaemon::provider

protected

qrtable

RoutingTable quisp::modules::routing_daemon::RoutingDaemon::qrtable

protected

run_ospf

bool quisp::modules::routing_daemon::RoutingDaemon::run_ospf

private

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

• quisp/modules/QRSA/RoutingDaemon/RoutingDaemon.h
• quisp/modules/QRSA/RoutingDaemon/RoutingDaemon.cc