Structure that contains all information about a router-level node. More...

#include <RUNetworkConfigurator.h>

Public Member Functions
	nodeInfoRL ()
	nodeInfoRL (cTopology::Node *node)

Public Attributes
bool	isIPNode
IInterfaceTable *	ift
InterfaceEntry *	defaultRouteIE
int	asId
int	asType
int	routerType
int	moduleId
IRoutingTable *	rt
IPAddress	addr
bool	usesDefaultRoute
cModule *	module
cTopology::Node *	node

Detailed Description

Structure that contains all information about a router-level node.

During initialization all necessary information is extraced of the given node: Does it belong to Stub or Transit AS, ID, router type. In addition, default interfaces are determined for gateway, edge, and host routers. Core routers do not have any default routes.

Definition at line 72 of file RUNetworkConfigurator.h.

Constructor & Destructor Documentation

nodeInfoRL::nodeInfoRL ( )

inline

Definition at line 84 of file RUNetworkConfigurator.h.

{};

nodeInfoRL::nodeInfoRL ( cTopology::Node * node )

inline

Definition at line 85 of file RUNetworkConfigurator.h.

    {
        this->node = node;
        module = node->getModule();
        moduleId = module->getId();
        ift = IPAddressResolver().findInterfaceTableOf(module);
        rt = IPAddressResolver().findRoutingTableOf(module);
        isIPNode = (rt != NULL);
        int index = 0;
        string fullPath = module->getFullPath();
        // check if stubstring "sas" (StubAS) or "tas" (TransitAS)
        // is contained in fullPath
        if ( (index = fullPath.find("sas")) != -1 )
            asType = STUB_AS;
        else if ( (index = fullPath.find("tas")) != -1 )
            asType = TRANSIT_AS;
        else if ( (index = fullPath.find("ReaSEUnderlayNetwork")) != -1)
            asType = UNSPECIFIED;
        else {
            cerr << "found module that doesn't belong to Transit AS (tas) or Stub AS (sas): "<< fullPath<<endl;
            opp_error("found module that doesn't belong to Transit AS (tas) or Stub AS (sas)");
        }
        // set index to char position after substring "sas/tas"
        if (asType == STUB_AS || asType == TRANSIT_AS) {
            index += 3;
            string currentId;
            while (isdigit(fullPath[index]) && (index < (int) fullPath.length()))
                currentId += fullPath[index++];
            asId = atoi(currentId.data());
        }
        if (module->getProperties()->get("CoreRouter"))
            routerType = CORE;
        else if (module->getProperties()->get("GatewayRouter"))
            routerType = GW;
        else if (module->getProperties()->get("EdgeRouter"))
            routerType = EDGE;
        else if (module->getProperties()->get("Host"))
            routerType = ENDSYS;
        else {
            cerr<<"found module without valid type: "<<fullPath<<endl;
            opp_error("found module without valid type");
        }
        //
        // determine default interface
        //
        if (routerType == CORE) {
            // find last interface that is not loopback
            for (int i=0; i<ift->getNumInterfaces(); i++)
                if (!ift->getInterface(i)->isLoopback())
                    addr = ift->getInterface(i)->ipv4Data()->getIPAddress();
            defaultRouteIE = NULL;
        }
        else {
            for (int i=0; i<ift->getNumInterfaces(); i++) {
                if (!ift->getInterface(i)->isLoopback()) {
                    // find first interface that is not loopback and is connected to
                    // a higher level node. Then, create default route
                    addr = ift->getInterface(i)->ipv4Data()->getIPAddress();
                    if (routerType == GW) {
                        if (module->gate(ift->getInterface(i)->getNodeOutputGateId())\
                            ->getNextGate()->getOwnerModule()->getProperties()->get("CoreRouter")) {
                            defaultRouteIE = ift->getInterface(i);
                            break;
                        }
                    }
                    else if (routerType == EDGE) {
                        if (module->gate(ift->getInterface(i)->getNodeOutputGateId())\
                            ->getNextGate()->getOwnerModule()->getProperties()->get("GatewayRouter")) {
                            defaultRouteIE = ift->getInterface(i);
                            break;
                        }
                    }else if (routerType == ENDSYS) {
                        if (module->gate(ift->getInterface(i)->getNodeOutputGateId())\
                            ->getNextGate()->getOwnerModule()->getProperties()->get("EdgeRouter")) {
                            defaultRouteIE = ift->getInterface(i);
                            break;
                        }
                    }
                }
            }
        }
    };