internal PCSCIso7816Protocol(byte[] atr, PCSCCard card)
{
// Reference the reader
myCard = card;
// Get the ATR value
this.Atr = Atr.Parse(atr);
// Map the PC/SC comms protocol to the appropriate CardFramework protocol
switch (myCard.CommsProtocol)
{
case SCardProtocol.T0:
CommsProtocol = Iso7816CommsProtocol.T0;
break;
case SCardProtocol.T1:
CommsProtocol = Iso7816CommsProtocol.T1;
break;
case SCardProtocol.Raw:
CommsProtocol = Iso7816CommsProtocol.Raw;
break;
default:
throw PCSCException.ThrowUnsupportedProtocol();
}
}
public override RApdu Transceive(CApdu command)
{
IntPtr requestPci;
switch (myCard.CommsProtocol)
{
case SCardProtocol.T0:
requestPci = PCSCApi.SCardPciT0;
break;
case SCardProtocol.T1:
requestPci = PCSCApi.SCardPciT1;
break;
default:
throw PCSCException.ThrowUnsupportedProtocol();
}
int responseLength = 1024;
byte[] responseBuffer = new byte[responseLength];
byte[] cmdBuffer = command.ToArray();
PCSCResult result = NativeMethods.SCardTransmit(myCard.Handle, requestPci, cmdBuffer, cmdBuffer.Length, IntPtr.Zero, responseBuffer, ref responseLength);
if (PCSCResult.None == result)
{
byte[] response = new byte[responseLength];
Array.Copy(responseBuffer, response, responseLength);
#if DEBUG
RaiseOnTranscieve("CAPDU> " + Converters.ByteArrayToString(cmdBuffer));
RaiseOnTranscieve("RAPDU> " + Converters.ByteArrayToString(response));
#endif
return(RApdu.Parse(response));
}
else
{
#if DEBUG
RaiseOnTranscieve("CAPDU> " + Converters.ByteArrayToString(cmdBuffer));
RaiseOnTranscieve("RAPDU> Error condition (HRESULT = " + EnumHelper.GetDescription(result) + ")");
#endif
throw new PCSCException("Communications error.");
}
}
public void Connect(SCardShareMode shareMode = SCardShareMode.Shared)
{
PCSCResult result;
// Are we already connected?
if (myHandle != IntPtr.Zero)
{
return;
}
// Establish a new session context for this card
result = NativeMethods.SCardEstablishContext(SCardScope.User, IntPtr.Zero, IntPtr.Zero, out myContext);
if (PCSCResult.None != result)
{
throw PCSCException.ThrowByResult(result);
}
// Connect to the card
result = NativeMethods.SCardConnect(myContext, myReaderName, shareMode, DefaultRequestedProtocols, ref myHandle, ref myCommsProtocol);
if (PCSCResult.None != result)
{
// Disconnect (this will gracefully handle the context release)
Disconnect();
throw PCSCException.ThrowByResult(result);
}
// Retrieve our ATR
byte[] readerName = new byte[255];
uint readerLen = 255;
SCardState state = 0;
SCardProtocol cardProtocol = 0;
uint atrLen = NativeMethods.SCARD_ATR_LENGTH;
byte[] atr = new byte[atrLen];
result = NativeMethods.SCardStatus(myHandle, readerName, ref readerLen, out state, out cardProtocol, atr, ref atrLen);
if (result != PCSCResult.None)
{
// Disconnect from the card
Disconnect();
throw PCSCException.ThrowByResult(result);
}
//
// Protocol Enumeration
//
try
{
// Add the default 7816 protocol
Protocols.Add(new PCSCIso7816Protocol(atr, this));
// Determine whether this card is contactless or not
if (SupportsIso14443)
{
// Replace the 7816 protocol with 14443
Protocols.Clear();
var protocol = new PCSCIso14443AProtocol(atr, this);
Protocols.Add(protocol);
// Create our OptionalCommands object
OptionalCommands = new PCSCOptionalCommands(protocol);
//
// HACK: Adding a PCSCMifareProtocol to all ISO14443 cards, what
// we should be doing is somehow determining if this card
// supports Mifare or Mifare emulation
//
Protocols.Add(new PCSCMifareProtocol(this));
}
}
catch (Exception)
{
// Disconnect from the card
Disconnect();
throw PCSCException.ThrowUnsupportedProtocol();
}
}