private void ExecuteRequest(IRequestPacket request, IPEndPoint clientEP, CancellationToken cancellationToken)
{
switch (request.Op)
{
case TftpOperation.ReadRequest:
ExecuteRead(request.FileName, clientEP, cancellationToken);
break;
case TftpOperation.WriteRequest:
ExecuteWrite(request.FileName, clientEP, cancellationToken);
break;
default:
Console.WriteLine("Requested operation unknown");
break;
}
}
// Listen for TFTP request packets on the port specified by bindPort.
private void Listen(int bindPort, CancellationToken cancellationToken)
{
IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
using (TftpConnection listener = new TftpConnection(bindPort))
{
Func <ITftpPacket, bool> requestFilter = (ITftpPacket packet) =>
{
IRequestPacket rq = packet as IRequestPacket;
if (rq != null)
{
if (rq.Mode == TftpMode.octet)
{
return(true);
}
else
{
Console.WriteLine("Modes other than octet are not supported.");
}
}
else
{
Console.WriteLine("Main listener recieved non-request TFTP packet.");
}
return(false);
};
while (true)
{
IRequestPacket request = (IRequestPacket)listener.Receive(requestFilter, out remoteEP, cancellationToken);
_requestHandlerTasks.Add(Task.Factory.StartNew(
action: () => ExecuteRequest(request, remoteEP, _cancellationTokenSource.Token),
cancellationToken: _cancellationTokenSource.Token,
creationOptions: TaskCreationOptions.LongRunning,
scheduler: TaskScheduler.Default));
}
}
}
