private void StartWork()
{
wtoken = new CancellationTokenSource();
int symmRetry = 0;
task = Task.Factory.StartNew(action =>
{
ILinkManager manager = (ILinkManager)ServiceManagers[0];
LLCPParameters paramsOut = new LLCPParameters(Version, MIUX, GetSupportedWelKnownServiceList(), manager.LinkTimeOut, LSC);
LLCPParameters paramsIn;
if (manager.LinkActivation(paramsOut, out paramsIn))
{
ConnectionChanged?.Invoke(this, new LLCPLinkActivatedEventArgs()
{
Connected = true
});
while (true)
{
if (wtoken.IsCancellationRequested) //stop is requeste break the loop and send close connection
{
Console.WriteLine("Closing LLCP connection");
break;
}
if (!manager.Symm())
{
symmRetry++;
if (symmRetry > 5)
{
break; //stop LLCP
}
}
else
{
symmRetry = 0;
}
}
manager.LinkDeActivation();
ConnectionChanged?.Invoke(this, new LLCPLinkActivatedEventArgs()
{
Connected = false
});
}
else
{
Console.WriteLine("Link activation failed");
}
}, wtoken, TaskCreationOptions.LongRunning);
}
public bool Connect(byte ssap, LLCPParameters parameters)
{
bool result = false;
if (LinkManager != null)
{
this.SSAP = ssap;
byte[] payload = parameters.GetParams();
byte[] connectRequest = LLCP.GetFrame((byte)WelKnownServiceAccessPoints.ServiceDiscoveryProtocolService, LLCP.PTYPES.CONNECT, ssap, 0, payload);
byte[] response = new byte[0];
if (LinkManager.Tranceive(connectRequest, out response))
{
if (response.Length > 2)
{
this.DSAP = (byte)(response[2] & 0x3F);
// check response
Connected = true;
}
}
}
return(result);
}
public bool LinkActivation(LLCPParameters paramsOut, out LLCPParameters paramsIn)
{
paramsIn = new LLCPParameters();
byte[] payload = paramsOut.GetMagicHeader();
byte[] reply = new byte[0];
Nfcip1.Reset();
Console.WriteLine("Sending ATR_REQ");
if (Nfcip1.Atr_req(Chip, TargetNumber, payload, out reply))
{
Console.WriteLine("ATR_RES received checking magic header");
if (reply.Length > 3)
{
if ((reply[0] == 0x46) && (reply[1] == 0x66) && (reply[2] == 0x6D))
{
byte[] paramA = new byte[reply.Length - 3];
Array.Copy(reply, 3, paramA, 0, paramA.Length);
paramsIn = new LLCPParameters(paramA);
return(true);
}
}
}
return(false);
}
