private void ClientStartListening(DerivedEndpoint localDerivedEndpoint, List <IPEndPoint> localEndpoints)
{
bool flag = false;
if (base.Session.ProbingClient.PredictNextExternalPort(localDerivedEndpoint))
{
if (!base.Candidates.StartListening(ref localDerivedEndpoint.LocalEndpoint, "Listener.ClientLocalEndpoint", out this.localListener))
{
return;
}
if (localDerivedEndpoint.ExternalEndpoint.Port == 0)
{
localDerivedEndpoint.ExternalEndpoint.Port = localDerivedEndpoint.LocalEndpoint.Port;
}
localEndpoints.Add(localDerivedEndpoint.LocalEndpoint);
flag = true;
}
List <IPAddress> localAddresses = DirectConnectionSession.ConnectActivity.GetLocalAddresses();
for (int i = 0; i < localAddresses.Count; i++)
{
if (!flag || localAddresses[i].GetRawIPv4Address() != localDerivedEndpoint.LocalEndpoint.Address.GetRawIPv4Address())
{
IPEndPoint pEndPoint = new IPEndPoint(localAddresses[i], 0);
if (!base.Candidates.StartListening(ref pEndPoint, "Listener.ClientRealAddress"))
{
return;
}
localEndpoints.Add(pEndPoint);
}
}
Thread.Sleep(200);
}
private void ServerStartConnectingExternal(DerivedEndpoint localDerivedEndpoint, IPEndPoint remoteExternalEndpoint)
{
if (base.Session.ProbingClient.PredictNextExternalPort(localDerivedEndpoint))
{
if (!base.Candidates.StartConnecting(ref localDerivedEndpoint.LocalEndpoint, remoteExternalEndpoint, "Connector.ClientExternalEndpoint"))
{
return;
}
base.Candidates.StartListening(ref localDerivedEndpoint.LocalEndpoint, "Listener.ServerLocalEndpoint");
if (localDerivedEndpoint.ExternalEndpoint.Port == 0)
{
localDerivedEndpoint.ExternalEndpoint.Port = localDerivedEndpoint.LocalEndpoint.Port;
}
}
}
public static bool PredictNextExternalPort(IPEndPoint probeAddress, int[] probePorts, DerivedEndpoint derivedEndpoint)
{
bool flag;
try
{
IPEndPoint pEndPoint = new IPEndPoint(IPAddress.Any, 0);
IPEndPoint pEndPoint1 = new IPEndPoint(IPAddress.Any, 0);
ProbingClient.SendProbeMessage(probeAddress, ProbeMessageType.GetServerAddress, ref pEndPoint, ref pEndPoint1);
IPEndPoint pEndPoint2 = new IPEndPoint(pEndPoint1.Address, probePorts[0]);
IPEndPoint pEndPoint3 = new IPEndPoint(pEndPoint1.Address, probePorts[1]);
IPEndPoint pEndPoint4 = new IPEndPoint(IPAddress.Any, 0);
IPEndPoint pEndPoint5 = new IPEndPoint(IPAddress.Any, 0);
pEndPoint = new IPEndPoint(IPAddress.Any, 0);
ProbingClient.SendProbeMessage(pEndPoint2, ProbeMessageType.GetClientAddress, ref pEndPoint, ref pEndPoint4);
if (pEndPoint.Address.GetRawIPv4Address() == pEndPoint4.Address.GetRawIPv4Address())
{
pEndPoint.Port = 0;
}
ProbingClient.SendProbeMessage(pEndPoint3, ProbeMessageType.GetClientAddress, ref pEndPoint, ref pEndPoint5);
if (pEndPoint4.Address.GetRawIPv4Address() != pEndPoint5.Address.GetRawIPv4Address())
{
flag = false;
}
else if (pEndPoint.Address.GetRawIPv4Address() != pEndPoint4.Address.GetRawIPv4Address())
{
derivedEndpoint.LocalEndpoint = pEndPoint;
derivedEndpoint.ExternalEndpoint = pEndPoint4;
if (pEndPoint4.Port != pEndPoint5.Port)
{
int port = pEndPoint5.Port - pEndPoint4.Port;
if (pEndPoint5.Port + port <= 65535)
{
derivedEndpoint.ExternalEndpoint.Port = pEndPoint5.Port + port;
}
else
{
flag = false;
return(flag);
}
}
flag = true;
}
else
{
pEndPoint.Port = 0;
derivedEndpoint.LocalEndpoint = pEndPoint;
derivedEndpoint.ExternalEndpoint = pEndPoint;
flag = true;
}
}
catch
{
flag = false;
}
return(flag);
}
public bool PredictNextExternalPort(DerivedEndpoint derivedEndpoint)
{
return(ProbingClient.PredictNextExternalPort(this.probeAddress, this.probePorts, derivedEndpoint));
}
public ListenActivity(DirectConnectionSession session) : base(session)
{
this.localDerivedEndpoint = new DerivedEndpoint();
this.localEndpoints = new List <IPEndPoint>();
}
public ConnectActivity(DirectConnectionSession session) : base(session)
{
this.completeEvent = new ManualResetEvent(false);
this.localDerivedEndpoint = new DerivedEndpoint();
this.localEndpoints = new List <IPEndPoint>();
}
