public void Start()
{
if (System.Threading.Interlocked.CompareExchange(ref _Running, 1, 0) > 0)
{
return;
}
if (_LocalEndPoint == null)
{
try
{
_Client = CreateClient(new IPEndPoint(IPAddress.IPv6Any, _Port));
// _ReceivePacketSize + 1); // +1 to check for > ReceivePacketSize
}
catch (SocketException e)
{
if (e.SocketErrorCode == SocketError.AddressFamilyNotSupported)
{
_Client = null;
}
else
{
throw e;
}
}
if (_Client == null)
{
// IPv6 is not supported, use IPv4 instead
_Client = CreateClient(new IPEndPoint(IPAddress.Any, _Port));
}
else
{
_ClientIPv4 = CreateClient(new IPEndPoint(IPAddress.Any, _Port));
}
}
else
{
_Client = CreateClient(_LocalEndPoint);
}
}
private DTLS.Client CreateClient(EndPoint endPoint)
{
DTLS.Client result = new DTLS.Client(endPoint, _SupportedCipherSuites);
if (!string.IsNullOrEmpty(_PSKIdentity) && !string.IsNullOrEmpty(_PSKSecret))
{
_SupportedCipherSuites.Clear();
_SupportedCipherSuites.Add(TCipherSuite.TLS_PSK_WITH_AES_128_CCM_8);
_SupportedCipherSuites.Add(TCipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256);
_SupportedCipherSuites.Add(TCipherSuite.TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256);
Console.WriteLine("Using PSK Identity: " + _PSKIdentity);
result.PSKIdentities.AddIdentity(System.Text.Encoding.UTF8.GetBytes(_PSKIdentity), StringUtils.HexStringToByteArray(_PSKSecret));
}
else if (!string.IsNullOrEmpty(_CertificateFile))
{
_SupportedCipherSuites.Clear();
_SupportedCipherSuites.Add(TCipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8);
_SupportedCipherSuites.Add(TCipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256);
Console.WriteLine("Using Certificate: " + _CertificateFile);
result.LoadCertificateFromPem(_CertificateFile);
}
else
{
Console.WriteLine("No Certificate or PSK supplied.");
}
result.DataReceived += new DTLS.Client.DataReceivedEventHandler(FireDataReceived);
//if (_ReceiveBufferSize > 0)
//{
// result.ReceiveBufferSize = _ReceiveBufferSize;
//}
//if (_SendBufferSize > 0)
//{
// result.SendBufferSize = _SendBufferSize;
//}
return(result);
}
private DTLS.Client CreateClient(EndPoint endPoint)
{
DTLS.Client result = new DTLS.Client(endPoint, _SupportedCipherSuites);
if (!string.IsNullOrEmpty(_PSKIdentity) && !string.IsNullOrEmpty(_PSKSecret))
{
_SupportedCipherSuites.Clear();
_SupportedCipherSuites.Add(TCipherSuite.TLS_PSK_WITH_AES_128_CCM_8);
_SupportedCipherSuites.Add(TCipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256);
_SupportedCipherSuites.Add(TCipherSuite.TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256);
Console.WriteLine("Using PSK Identity: " + _PSKIdentity);
result.PSKIdentities.AddIdentity(System.Text.Encoding.UTF8.GetBytes(_PSKIdentity), StringUtils.HexStringToByteArray(_PSKSecret));
}
else if (!string.IsNullOrEmpty(_CertificateFile))
{
_SupportedCipherSuites.Clear();
_SupportedCipherSuites.Add(TCipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8);
_SupportedCipherSuites.Add(TCipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256);
Console.WriteLine("Using Certificate: " + _CertificateFile);
result.LoadCertificateFromPem(_CertificateFile);
}
else
{
Console.WriteLine("No Certificate or PSK supplied.");
}
result.DataReceived += new DTLS.Client.DataReceivedEventHandler(FireDataReceived);
//if (_ReceiveBufferSize > 0)
//{
// result.ReceiveBufferSize = _ReceiveBufferSize;
//}
//if (_SendBufferSize > 0)
//{
// result.SendBufferSize = _SendBufferSize;
//}
return result;
}
public void Stop()
{
if (System.Threading.Interlocked.Exchange(ref _Running, 0) == 0)
return;
if (_Client != null)
{
_Client.Stop();
_Client = null;
}
if (_ClientIPv4 != null)
{
_ClientIPv4.Stop();
_ClientIPv4 = null;
}
}
public void Start()
{
if (System.Threading.Interlocked.CompareExchange(ref _Running, 1, 0) > 0)
return;
if (_LocalEndPoint == null)
{
try
{
_Client = CreateClient(new IPEndPoint(IPAddress.IPv6Any, _Port));
// _ReceivePacketSize + 1); // +1 to check for > ReceivePacketSize
}
catch (SocketException e)
{
if (e.SocketErrorCode == SocketError.AddressFamilyNotSupported)
_Client = null;
else
throw e;
}
if (_Client == null)
{
// IPv6 is not supported, use IPv4 instead
_Client = CreateClient(new IPEndPoint(IPAddress.Any, _Port));
}
else
{
_ClientIPv4 = CreateClient(new IPEndPoint(IPAddress.Any, _Port));
}
}
else
{
_Client = CreateClient(_LocalEndPoint);
}
}
public void Send(byte[] data, System.Net.EndPoint ep)
{
DTLS.Client socket = _Client;
IPEndPoint remoteEP = (IPEndPoint)ep;
if (remoteEP.AddressFamily == AddressFamily.InterNetwork)
{
if (_ClientIPv4 != null)
{
// use the separated socket of IPv4 to deal with IPv4 conversions.
socket = _ClientIPv4;
}
else if (_Client.LocalEndPoint.AddressFamily == AddressFamily.InterNetworkV6)
{
remoteEP = new IPEndPoint(IPAddressExtensions.MapToIPv6(remoteEP.Address), remoteEP.Port);
}
}
if (!_Connected)
{
socket.ConnectToServer(remoteEP);
_Connected = true;
}
socket.Send(data);
}
public void Stop()
{
if (System.Threading.Interlocked.Exchange(ref _Running, 0) == 0)
{
return;
}
if (_Client != null)
{
_Client.Stop();
_Client = null;
}
if (_ClientIPv4 != null)
{
_ClientIPv4.Stop();
_ClientIPv4 = null;
}
}