private void Listen()
{
listener.Start();
while (true)
{
TcpClient client = listener.AcceptTcpClient();
ControlConnectionService service = new ControlConnectionService(client, this);
}
}
private void Listen()
{
try
{
client = new TcpClient("127.0.0.1", this.port);
BinaryReader reader = new BinaryReader(client.GetStream());
writer = new BinaryWriter(client.GetStream());
while (true)
{
string received_data = reader.ReadString();
JSON received_object = JSON.Deserialize(received_data);
Management.ManagmentProtocol received_Protocol = received_object.Value.ToObject <Management.ManagmentProtocol>();
if (received_object.Type == typeof(Management.ManagmentProtocol))
{
Management.ManagmentProtocol management_packet = received_object.Value.ToObject <Management.ManagmentProtocol>();
if (management_packet.State == Management.ManagmentProtocol.TOOTHERNCC)
{
foreach (int port in management_packet.ConnectionToOtherNcc)
{
TcpClient connection = new TcpClient("127.0.0.1", port);
ControlConnectionService service = new ControlConnectionService(connection, control);
Thread.Sleep(500);
ControlPacket packetToNCC = new ControlPacket(ControlInterface.NETWORK_CALL_COORDINATION_IN, ControlPacket.IN_PROGRESS, 0, "", "", control.domainNumber);
service.send(packetToNCC);
}
}
else if (management_packet.State == Management.ManagmentProtocol.SOFTPERNAMENT)
{
control.consoleWriter("[NCC <- Management] Soft pernament from " + management_packet.NodeStart + " to " + management_packet.NodeEnd);
int RequestID = control.generateRequestID();
Address address = new Address(management_packet.NodeStart);
int cpccID = address.type + address.domain + address.subnet + address.space;
control.addCpccRequest(RequestID, cpccID);
ControlPacket packetToCPCC = new ControlPacket(ControlInterface.CALL_INDICATION_CPCC, ControlPacket.IN_PROGRESS, management_packet.Speed, management_packet.NodeEnd, management_packet.NodeStart, RequestID);
packetToCPCC.Vc11 = 1;
packetToCPCC.Vc12 = 1;
packetToCPCC.Vc13 = 1;
ControlConnectionService cpccService = control.getCpccServiceByAddr(management_packet.NodeEnd);
cpccService.send(packetToCPCC);
control.consoleWriter("[NCC -> CPCC] Send Call Indication");
}
else if (management_packet.State == Management.ManagmentProtocol.RELEASESOFTPERNAMENT)
{
int id = management_packet.Connection;
control.consoleWriter("[NCC <- CPCC] Call release id: " + id);
if (!control.checkIfInterdomainRequest(id))
{
control.consoleWriter("[NCC -> CC]Send connection release");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_RELEASE_WITH_ID;
packetToCC.RequestID = id;
ControlConnectionService CCService = control.getCCService();
CCService.sendCCRequest(packetToCC);
}
else
{
control.consoleWriter("[NCC -> CC]Send connection release");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_RELEASE_WITH_ID;
packetToCC.RequestID = id;
ControlConnectionService CCService = control.getCCService();
CCService.sendCCRequest(packetToCC);
}
}
}
}
}
catch (SocketException e)
{
}
catch (IOException e)
{
Thread.Sleep(1000);
Environment.Exit(1);
}
}
private void ListenThread(Object client)
{
TcpClient clienttmp = (TcpClient)client;
BinaryReader reader = new BinaryReader(clienttmp.GetStream());
writer = new BinaryWriter(clienttmp.GetStream());
while (true)
{
try
{
string received_data = reader.ReadString();
JMessage received_object = JMessage.Deserialize(received_data);
if (received_object.Type == typeof(ControlPacket))
{
ControlPacket packet = received_object.Value.ToObject <ControlPacket>();
if (packet.virtualInterface == ControlInterface.CALL_REQUEST)
{
//request service cpcc
int requestID = handlerNCC.generateRequestID();
handlerNCC.addCpccRequest(requestID, myServiceID);
handlerNCC.consoleWriter("[NCC <- CPCC] Receive Call Request for " + packet.destinationIdentifier);
handlerNCC.consoleWriter("[NCC -> DIRECTORY] Send Directory Request");
if (handlerNCC.checkIfInDirectory(packet.destinationIdentifier))
{
handlerNCC.consoleWriter("[NCC <- DIRECTORY] Receive Local Name");
handlerNCC.consoleWriter("[NCC -> POLICY] Send Policy Out");
handlerNCC.consoleWriter("[NCC <- POLICY] Call Accept");
ControlPacket packetToCPCC = new ControlPacket(ControlInterface.CALL_INDICATION_CPCC, packet.state, packet.speed, packet.destinationIdentifier, packet.originIdentifier, requestID);
packetToCPCC.Vc11 = 1;
packetToCPCC.Vc12 = 1;
packetToCPCC.Vc13 = 1;
ControlConnectionService cpccService = handlerNCC.getCpccServiceByAddr(packet.destinationIdentifier);
cpccService.send(packetToCPCC);
handlerNCC.consoleWriter("[NCC -> CPCC] Send Call Indication");
}
else
{
handlerNCC.consoleWriter("[NCC <- DIRECTORY] Directory Request Reject");
Address address = new Address(packet.destinationIdentifier);
ControlConnectionService serviceToNCC = handlerNCC.getService(address.domain);
handlerNCC.addCNAddressesForInterdomainCalls(requestID, packet.originIdentifier);
Address addressFromOtherDomain = new Address(packet.destinationIdentifier);
List <string> borderGWAddresses = new List <string>();
borderGWAddresses = handlerNCC.returnBorderGateway(addressFromOtherDomain.domain);
string borderGWAddress = borderGWAddresses.First();
handlerNCC.initInterdomanCallTask(requestID, borderGWAddress);
ControlPacket packetToNCC = new ControlPacket(ControlInterface.CALL_INDICATION, ControlPacket.IN_PROGRESS, packet.speed, packet.destinationIdentifier, borderGWAddress, requestID);
packetToNCC.domain = handlerNCC.domainNumber;
packetToNCC.Vc11 = 1;
packetToNCC.Vc12 = 1;
packetToNCC.Vc13 = 1;
serviceToNCC.send(packetToNCC);
handlerNCC.consoleWriter("[NCC -> NCC]Send Call Coordination: " + packet.destinationIdentifier + " origin(BG address): " + borderGWAddress);
}
}
else if (packet.virtualInterface == ControlInterface.INIT_CPCC_CONNECTION)
{
handlerNCC.addService(packet.RequestID, this);
this.myServiceID = packet.RequestID;
ControlPacket packetToCpcc = new ControlPacket(ControlInterface.INIT_CPCC_CONNECTION_CONFIRM, 0, 0, "", "", 0);
send(packetToCpcc);
}
else if (packet.virtualInterface == ControlInterface.CALL_RELEASE_IN)
{
//RELEASE
int id = packet.RequestID;
handlerNCC.consoleWriter("[NCC <- CPCC] Call release id: " + id);
if (!handlerNCC.checkIfInterdomainRequest(id))
{
handlerNCC.consoleWriter("[NCC -> CC]Send connection release");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_RELEASE_WITH_ID;
packetToCC.RequestID = packet.RequestID;
ControlConnectionService CCService = this.handlerNCC.getCCService();
CCService.sendCCRequest(packetToCC);
}
else
{
handlerNCC.consoleWriter("[NCC -> CC]Send connection release");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_RELEASE_WITH_ID;
packetToCC.RequestID = packet.RequestID;
ControlConnectionService CCService = this.handlerNCC.getCCService();
CCService.sendCCRequest(packetToCC);
}
}
else if (packet.virtualInterface == ControlInterface.NETWORK_CALL_COORDINATION_IN)
{
handlerNCC.consoleWriter("[NCC <- NCC] Receive NCC invitation from NCC in domain" + packet.RequestID);
handlerNCC.addService(packet.RequestID, this);
ControlPacket packetToNCCResponse = new ControlPacket(ControlInterface.NETWORK_CALL_COORDINATION_OUT, ControlPacket.IN_PROGRESS, 0, "", "", handlerNCC.domainNumber);
send(packetToNCCResponse);
handlerNCC.consoleWriter("[NCC -> NCC] Send invitation response to NCC in domain" + packetToNCCResponse.RequestID);
}
else if (packet.virtualInterface == ControlInterface.NETWORK_CALL_COORDINATION_OUT)
{
handlerNCC.consoleWriter("[NCC <- NCC] NCC handshake completed with NCC in doman" + packet.RequestID);
handlerNCC.addService(packet.RequestID, this);
}
else if (packet.virtualInterface == ControlInterface.CALL_INDICATION)
{
if (packet.state == ControlPacket.IN_PROGRESS)
{
handlerNCC.consoleWriter("[NCC <- NCC] Recived Call Coordination " + packet.originIdentifier + " to: " + packet.destinationIdentifier);
if (handlerNCC.interdomainRequests.ContainsKey(packet.RequestID))
{
//Console.WriteLine("KOLEJNA PROBA Z INNYM GW: " + packet.originIdentifier);
}
else
{
handlerNCC.addInterdomainRequest(packet.RequestID, packet.domain);
}
// ZAKLADAMY TU ZE KAZDE NCC MA HANDLER NA INNE, INACZEJ SPRAWDZ DOMENE CZY TWOJA, NIE TO SLIJ DALEJ
handlerNCC.consoleWriter("[NCC -> DIRECTORY] Send Directory Request");
handlerNCC.consoleWriter("[NCC <- DIRECTORY] Receive Local Name");
handlerNCC.consoleWriter("[NCC -> POLICY] Send Policy Out");
handlerNCC.consoleWriter("[NCC <- POLICY] Call Accept");
ControlPacket packetToCPCC = new ControlPacket(ControlInterface.CALL_INDICATION_CPCC, packet.state, packet.speed, packet.destinationIdentifier, packet.originIdentifier, packet.RequestID);
packetToCPCC.Vc11 = packet.Vc11;
packetToCPCC.Vc12 = packet.Vc12;
packetToCPCC.Vc13 = packet.Vc13;
ControlConnectionService cpccService = handlerNCC.getCpccServiceByAddr(packet.destinationIdentifier);
cpccService.send(packetToCPCC);
handlerNCC.consoleWriter("[NCC -> CPCC] Send Call Indication");
}
else if (packet.state == ControlPacket.REJECT)
{
handlerNCC.consoleWriter("[NCC <- NCC] Receive Call Release, from previous NCC");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_RELEASE_WITH_ID;
packetToCC.RequestID = packet.RequestID;
ControlConnectionService CCService = handlerNCC.getCCService();
CCService.sendCCRequest(packetToCC);
}
}
else if (packet.virtualInterface == ControlInterface.CALL_INDICATION_CPCC_ACCEPT)
{
handlerNCC.consoleWriter("[NCC <- CPCC] Call Indication Confirmed");
handlerNCC.consoleWriter("[NCC -> CC]Send Connection Request");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_SET_CONNECTION;
packetToCC.NodeFrom = packet.originIdentifier;
packetToCC.NodeTo = packet.destinationIdentifier;
handlerNCC.rejectedDestinations.Add(packet.RequestID, packet.destinationIdentifier);
packetToCC.Rate = packet.speed;
packetToCC.RequestID = packet.RequestID;
packetToCC.Vc11 = packet.Vc11;
packetToCC.Vc12 = packet.Vc12;
packetToCC.Vc13 = packet.Vc13;
ControlConnectionService CCService = this.handlerNCC.getCCService();
CCService.sendCCRequest(packetToCC);
}
else if (packet.virtualInterface == ControlInterface.CALL_REQUEST_ACCEPT)
{
// ZAKLADAMY TU ZE KAZDE NCC MA HANDLER NA INNE, INACZEJ SPRAWDZ DOMENE CZY TWOJA, NIE TO ODESLIJ DALEJ
if (packet.state == ControlPacket.ACCEPT)
{
handlerNCC.consoleWriter("[NCC <- NCC] Call Coordination Accept");
CCtoNCCSingallingMessage packetToCC = new CCtoNCCSingallingMessage();
packetToCC.State = CCtoNCCSingallingMessage.NCC_SET_CONNECTION;
packetToCC.NodeFrom = handlerNCC.getCNAddressesForInterdomainCalls(packet.RequestID);
packetToCC.NodeTo = packet.destinationIdentifier;
handlerNCC.consoleWriter("[NCC->CC]Send Connection Request, from: " + packetToCC.NodeFrom + " to: " + packetToCC.NodeTo);
packetToCC.Rate = packet.speed;
packetToCC.RequestID = packet.RequestID;
packetToCC.Vc11 = packet.Vc11;
packetToCC.Vc12 = packet.Vc12;
packetToCC.Vc13 = packet.Vc13;
ControlConnectionService CCService = this.handlerNCC.getCCService();
CCService.sendCCRequest(packetToCC);
}
else
{
//counter--;
//if (counter < 0)
// break;
handlerNCC.consoleWriter("[NCC <- NCC] Call Coordination Rejected");
// handlerNCC.showInterdomainAttemptsForRequestID(packet.RequestID);
// Console.WriteLine("Szukam borderow dla ip: " + packet.destinationIdentifier);
String anotherBorderGWAddress = handlerNCC.getAnotherBorderGatewayAddress(packet.RequestID, packet.originIdentifier);
//Console.WriteLine("Znaleziony border GW: " + anotherBorderGWAddress);
if (anotherBorderGWAddress == null)
{
//wez service odpowiedni
ControlConnectionService cpccCallService = handlerNCC.getService(handlerNCC.getCpccService(packet.RequestID));
ControlPacket packetToCPCC = new ControlPacket(ControlInterface.CALL_ACCEPT, ControlPacket.REJECT, packet.speed, packet.originIdentifier, handlerNCC.getCNAddressesForInterdomainCalls(packet.RequestID), packet.RequestID);
cpccCallService.send(packetToCPCC);
handlerNCC.consoleWriter("[NCC -> CPCC] Call Request Reject");
handlerNCC.clearCNAddressesForInterdomainCalls(packet.RequestID);
handlerNCC.clearInterdomainCallAttempt(packet.RequestID);
handlerNCC.removeCpccRequest(packet.RequestID);
//NIE UDALO SIE U NAS, WYSLAC DO TAMTEGO NCC NIECH ROZLACZY JEDNAK
//W DOMAIN Z TMATEGO NCC JEGO DOMAIN, ZEBY ODESLAC MU NIECH ROZLACZY
// ControlConnectionService nccCallService = handlerNCC.getService(packet.domain);
// ControlPacket packetToNCC = new ControlPacket(ControlInterface.CALL_INDICATION, ControlPacket.REJECT, packet.speed, "BORDER_GATEWAY", packet.destinationIdentifier, packet.RequestID);
//nccCallService.send(packetToNCC);
}
else
{
//Console.WriteLine("Znalazłem nowy border wyjsciowy: " + anotherBorderGWAddress);
handlerNCC.addIntrerdomainCallsAttempts(packet.RequestID, anotherBorderGWAddress);
Address address = new Address(packet.originIdentifier);
ControlConnectionService serviceToNCC = handlerNCC.getService(address.domain);
ControlPacket packetToNCC = new ControlPacket(ControlInterface.CALL_INDICATION, ControlPacket.IN_PROGRESS, packet.speed, packet.originIdentifier, anotherBorderGWAddress, packet.RequestID);
packetToNCC.domain = handlerNCC.domainNumber;
packetToNCC.Vc11 = 1;
packetToNCC.Vc12 = 1;
packetToNCC.Vc13 = 1;
packetToNCC.speed = packet.speed;
handlerNCC.consoleWriter("[NCC -> NCC] Send Call Coordination with another border GW, destination: " + packetToNCC.destinationIdentifier + " borderGW: " + anotherBorderGWAddress);
serviceToNCC.send(packetToNCC);
}
}
}
}
else if (received_object.Type == typeof(CCtoNCCSingallingMessage))
{
CCtoNCCSingallingMessage packet = received_object.Value.ToObject <CCtoNCCSingallingMessage>();
if (packet.State == CCtoNCCSingallingMessage.INIT_FROM_CC)
{
handlerNCC.consoleWriter("[NCC <- CC]Connection established");
handlerNCC.setCCService(this);
}
else if (packet.State == CCtoNCCSingallingMessage.CC_CONFIRM)
{
handlerNCC.consoleWriter("[NCC <- CC] Receive Connection Request Confirm");
if (handlerNCC.rejectedDestinations.ContainsKey(packet.RequestID))
{
handlerNCC.rejectedDestinations.Remove(packet.RequestID);
}
if (handlerNCC.checkIfInterdomainRequest(packet.RequestID))
{
ControlConnectionService NCCService = handlerNCC.getService(handlerNCC.getDomainService(packet.RequestID));
//Console.WriteLine("[CC]Border gateway to previous ncc: " + packet.NodeTo);
//Nodeto GW, NodeFrom CN in other domain address
ControlPacket packetToNCC = new ControlPacket(ControlInterface.CALL_REQUEST_ACCEPT, ControlPacket.ACCEPT, packet.Rate, packet.NodeTo, packet.NodeFrom, packet.RequestID);
packetToNCC.domain = handlerNCC.domainNumber;
packetToNCC.Vc11 = packet.Vc11;
packetToNCC.Vc12 = packet.Vc12;
packetToNCC.Vc13 = packet.Vc13;
NCCService.send(packetToNCC);
handlerNCC.clearCNAddressesForInterdomainCalls(packet.RequestID);
handlerNCC.consoleWriter("[NCC -> NCC] Send Call Coordination Confirm");
}
else
{
ControlConnectionService cpccCallService = handlerNCC.getService(handlerNCC.getCpccService(packet.RequestID));
ControlPacket packetToCPCC = new ControlPacket(ControlInterface.CALL_ACCEPT, ControlPacket.ACCEPT, packet.Rate, packet.NodeTo, packet.NodeTo, packet.RequestID);
List <int> slots = new List <int>();
if (packet.Vc11 != 0)
{
packetToCPCC.Vc11 = 1;
slots.Add(11);
}
if (packet.Vc12 != 0)
{
packetToCPCC.Vc12 = 1;
slots.Add(12);
}
if (packet.Vc13 != 0)
{
packetToCPCC.Vc13 = 1;
slots.Add(13);
}
cpccCallService.send(packetToCPCC);
handlerNCC.management.send(packet.RequestID, packet.NodeTo);
handlerNCC.consoleWriter("[NCC -> CPCC] Send Call Request Accept");
}
}
else if (packet.State == CCtoNCCSingallingMessage.CC_REJECT)
{
handlerNCC.consoleWriter("[NCC <- CC] Receive Connection Request Reject");
if (handlerNCC.checkIfInterdomainRequest(packet.RequestID))
{
ControlConnectionService NCCService = handlerNCC.getService(handlerNCC.getDomainService(packet.RequestID));
//Nodeto GW, NodeFrom CN in other domain address
// Console.WriteLine("[CC]Destination node to previous ncc: " + handlerNCC.rejectedDestinations[packet.RequestID]);
ControlPacket packetToNCC = new ControlPacket(ControlInterface.CALL_REQUEST_ACCEPT, ControlPacket.REJECT, packet.Rate, packet.NodeTo, handlerNCC.rejectedDestinations[packet.RequestID], packet.RequestID);
packetToNCC.domain = handlerNCC.domainNumber;
NCCService.send(packetToNCC);
handlerNCC.rejectedDestinations.Remove(packet.RequestID);
handlerNCC.consoleWriter("[NCC -> NCC] Send Call Coordination Reject");
}
else
{
ControlConnectionService cpccCallService = handlerNCC.getService(handlerNCC.getCpccService(packet.RequestID));
ControlPacket packetToCPCC = new ControlPacket(ControlInterface.CALL_ACCEPT, ControlPacket.REJECT, packet.Rate, packet.NodeTo, packet.NodeTo, packet.RequestID);
handlerNCC.consoleWriter("[NCC -> CPCC] Send Call Request Reject");
cpccCallService.send(packetToCPCC);
}
}
else if (packet.State == CCtoNCCSingallingMessage.BORDER_NODE)
{
handlerNCC.consoleWriter("[NCC <- CC]Get border node address: " + packet.BorderNode + " to domain: " + packet.BorderDomain);
handlerNCC.addBorderGateway(packet.BorderDomain, packet.BorderNode);
}
}
else
{
handlerNCC.consoleWriter("Wrong control packet format");
}
}
catch (IOException e)
{
handlerNCC.consoleWriter("Connection closed");
break;
}
}
}
public void setCCService(ControlConnectionService handler)
{
this.CCService = handler;
}
public void addService(int ID, ControlConnectionService handler)
{
services.Add(ID, handler);
}
