public SCardReaderList(uint Scope, string Groups)
{
_scope = Scope;
_groups = Groups;
_reader_names = SCARD.GetReaderList(Scope, Groups);
_auto_update_list = true;
}
public bool Write(byte address, CardBuffer buffer)
{
_last_error = SCARD.MifUlC_Write4(hCard, address, buffer.GetBytes());
if (_last_error != 0)
{
return(false);
}
return(true);
}
public bool Authenticate(CardBuffer key)
{
_last_error = SCARD.MifUlC_Authenticate(hCard, key.GetBytes());
if (_last_error != 0)
{
return(false);
}
return(true);
}
public bool ChangeKey(CardBuffer key)
{
_last_error = SCARD.MifUlC_ChangeKey(hCard, key.GetBytes());
if (_last_error != 0)
{
return(false);
}
return(true);
}
public CardBuffer Read(byte address)
{
byte[] buffer = new byte[16];
_last_error = SCARD.MifUlC_Read(hCard, address, buffer);
if (_last_error != 0)
{
return(null);
}
return(new CardBuffer(buffer));
}
private void Instanciate(uint Scope, string ReaderName)
{
uint rc;
rc = SCARD.EstablishContext(Scope, IntPtr.Zero, IntPtr.Zero, ref _hContext);
if (rc != SCARD.S_SUCCESS)
{
_hContext = IntPtr.Zero;
_last_error = rc;
}
_reader_name = ReaderName;
}
/**m* SCardChannel/Transmit
*
* NAME
* SCardChannel.Transmit()
*
* SYNOPSIS
* bool Transmit()
* RAPDU Transmit(CAPDU capdu)
* bool Transmit(CAPDU capdu, out RAPDU rapdu)
* void Transmit(CAPDU capdu, TransmitDoneCallback callback)
*
* DESCRIPTION
* Sends a command APDU (CAPDU) to the connected card, and retrieves its response APDU (RAPDU)
*
* SOURCE
*
* SCardChannel card = new SCardChannel( ... reader ... );
* if (!card.Connect( SCARD.PROTOCOL_T0|SCARD.PROTOCOL_T1 ))
* {
* // handle error
* }
*
*
* // Example 1
* // ---------
*
* card.Command = new CAPDU("00 A4 00 00 02 3F 00");
* if (!card.Transmit())
* {
* // handle error
* }
* MessageBox.Show("Card answered: " + card.Response.AsString(" "));
*
*
* // Example 2
* // ---------
*
* RAPDU response = card.Transmit(new CAPDU("00 A4 00 00 02 3F 00")))
* if (response == null)
* {
* // handle error
* }
* MessageBox.Show("Card answered: " + response.AsString(" "));
*
*
* // Example 3
* // ---------
*
* CAPDU command = new CAPDU("00 A4 00 00 02 3F 00");
* RAPDU response = new RAPDU();
* if (!card.Transmit(command, out response))
* {
* // handle error
* }
* MessageBox.Show("Card answered: " + response.AsString(" "));
*
*
* // Example 4
* // ---------
*
* // In this example the Transmit is performed by a background thread
* // We supply a delegate so the main class (window/form) will be notified
* // when Transmit will return
*
* delegate void OnTransmitDoneInvoker(RAPDU response);
*
* void OnTransmitDone(RAPDU response)
* {
* // Ensure we're back in the context of the main thread (application's message pump)
* if (this.InvokeRequired)
* {
* this.BeginInvoke(new OnTransmitDoneInvoker(OnTransmitDone), response);
* return;
* }
*
* if (response == null)
* {
* // handle error
* }
*
* MessageBox.Show("Card answered: " + response.AsString(" "));
* }
*
* card.Transmit(new CAPDU("00 A4 00 00 02 3F 00"), new SCardChannel.TransmitDoneCallback(OnTransmitDone));
*
*
* SEE ALSO
* SCardChannel.Connect
* SCardChannel.Transmit
* SCardChannel.Command
* SCardChannel.Response
*
**/
#region Transmit
public virtual bool Transmit()
{
uint rsp_length = 32 * 1024;
byte[] rsp_buffer = new byte[rsp_length];
uint rc;
IntPtr SendPci = IntPtr.Zero;
switch (_active_protocol)
{
case SCARD.PROTOCOL_T0:
SendPci = SCARD.PCI_T0();
break;
case SCARD.PROTOCOL_T1:
SendPci = SCARD.PCI_T1();
break;
case SCARD.PROTOCOL_RAW:
SendPci = SCARD.PCI_RAW();
break;
default:
break;
}
_rapdu = null;
Trace.WriteLine("Transmit << " + _capdu.AsString());
rc = SCARD.Transmit(_hCard,
SendPci,
_capdu.GetBytes(),
(uint)_capdu.Length,
IntPtr.Zero, /* RecvPci is likely to remain NULL */
rsp_buffer,
ref rsp_length);
if (rc != SCARD.S_SUCCESS)
{
Trace.WriteLine("Transmit : " + rc);
_last_error = rc;
return(false);
}
_rapdu = new RAPDU(rsp_buffer, (int)rsp_length);
Trace.WriteLine("Transmit >> " + _rapdu.AsString());
return(true);
}
private void UpdateState()
{
uint rc;
IntPtr hContext = IntPtr.Zero;
_reader_state = SCARD.STATE_UNAWARE;
_card_atr = null;
rc =
SCARD.EstablishContext(_scope, IntPtr.Zero, IntPtr.Zero, ref hContext);
if (rc != SCARD.S_SUCCESS)
{
_last_error = rc;
return;
}
SCARD.READERSTATE[] states = new SCARD.READERSTATE[1];
states[0] = new SCARD.READERSTATE();
states[0].szReader = _reader_name;
states[0].pvUserData = IntPtr.Zero;
states[0].dwCurrentState = 0;
states[0].dwEventState = 0;
states[0].cbAtr = 0;
states[0].rgbAtr = null;
try
{
rc = SCARD.GetStatusChange(hContext, 0, states, 1);
}
catch (ThreadInterruptedException)
{
rc = SCARD.E_CANCELLED;
}
if (rc != SCARD.S_SUCCESS)
{
SCARD.ReleaseContext(hContext);
return;
}
SCARD.ReleaseContext(hContext);
_reader_state = states[0].dwEventState;
if ((_reader_state & SCARD.STATE_PRESENT) != 0)
{
_card_atr = new CardBuffer(states[0].rgbAtr, (int)states[0].cbAtr);
}
}
public static string[] GetReaderList(uint Scope, string Groups)
{
IntPtr hContext = IntPtr.Zero;
uint rc;
rc = SCARD.EstablishContext(Scope, IntPtr.Zero, IntPtr.Zero, ref hContext);
if (rc != SCARD.S_SUCCESS)
{
return(null);
}
string[] readers = GetReaderList(hContext, Groups);
SCARD.ReleaseContext(hContext);
return(readers);
}
public virtual byte[] Control(byte[] cctrl)
{
byte[] rctrl = new byte[280];
uint rl = 0;
uint rc;
Trace.WriteLine("Control << " + (new CardBuffer(cctrl)).AsString());
rc = SCARD.Control(_hCard,
SCARD.IOCTL_CSB6_PCSC_ESCAPE,
cctrl,
(uint)cctrl.Length,
rctrl,
280,
ref rl);
if (rc == 1)
{
rc = SCARD.Control(_hCard,
SCARD.IOCTL_MS_CCID_ESCAPE,
cctrl,
(uint)cctrl.Length,
rctrl,
280,
ref rl);
}
if (rc != SCARD.S_SUCCESS)
{
Trace.WriteLine("Control: " + rc);
_last_error = rc;
rctrl = null;
return(null);
}
byte[] r = new byte[rl];
for (int i = 0; i < rl; i++)
{
r[i] = rctrl[i];
}
Trace.WriteLine("Control >> " + (new CardBuffer(r)).AsString());
return(r);
}
/**m* SCardReaderList/StopMonitor
*
* NAME
* SCardReaderList.StopMonitor()
*
* DESCRIPTION
* Stop the background thread previously launched by SCardReaderList.StartMonitor().
*
**/
public void StopMonitor()
{
_status_change_callback = null;
_status_change_running = false;
if (_status_change_thread != null)
{
if (_status_change_context != IntPtr.Zero)
{
SCARD.Cancel(_status_change_context);
}
else
{
_status_change_thread.Interrupt();
}
_status_change_thread.Join();
_status_change_thread = null;
}
}
/**m* SCardChannel/Reconnect
*
* NAME
* SCardChannel.Reconnect()
*
* SYNOPSIS
* bool Reconnect()
* bool Reconnect(uint disposition)
*
* DESCRIPTION
* Re-open the connection channel to the smartcard
*
* INPUTS
* The disposition parameter must take one of the following values:
* - SCARD.EJECT_CARD
* - SCARD.UNPOWER_CARD
* - SCARD.RESET_CARD
* - SCARD.LEAVE_CARD
* If this parameter is omitted, it defaults to SCARD.RESET_CARD
*
* OUTPUT
* Returns true if the connection has been successfully re-established.
* Returns false if not. See LastError for details.
*
* SEE ALSO
* SCardChannel.Connect
* SCardChannel.Disconnect
*
**/
public virtual bool Reconnect(uint disposition)
{
uint rc;
if (!Connected)
{
return(false);
}
rc =
SCARD.Reconnect(_hCard, _share_mode, _want_protocols, disposition, ref _active_protocol);
if (rc != SCARD.S_SUCCESS)
{
_hCard = IntPtr.Zero;
_last_error = rc;
return(false);
}
UpdateState();
return(true);
}
/**m* SCardChannel/Disconnect
*
* NAME
* SCardChannel.Disconnect()
*
* SYNOPSIS
* bool Disconnect()
* bool Disconnect(uint disposition)
*
* DESCRIPTION
* Close the connection channel
*
* INPUTS
* The disposition parameter must take one of the following values:
* - SCARD.EJECT_CARD
* - SCARD.UNPOWER_CARD
* - SCARD.RESET_CARD
* - SCARD.LEAVE_CARD
* If this parameter is omitted, it defaults to SCARD.RESET_CARD
*
* SEE ALSO
* SCardChannel.Connect
*
**/
public virtual bool Disconnect(uint disposition)
{
uint rc;
Trace.WriteLine("Disconnect, disposition=" + disposition);
rc = SCARD.Disconnect(_hCard, disposition);
if (rc != SCARD.S_SUCCESS)
{
_last_error = rc;
}
_hCard = IntPtr.Zero;
if (rc != SCARD.S_SUCCESS)
{
return(false);
}
return(true);
}
/**m* SCardChannel/Connect
*
* NAME
* SCardChannel.Connect()
*
* SYNOPSIS
* bool Connect()
*
* DESCRIPTION
* Open the connection channel to the smartcard (according to the specified Protocol, default is either T=0 or T=1)
*
* OUTPUT
* Returns true if the connection has been successfully established.
* Returns false if not. See LastError for details.
*
* SEE ALSO
* SCardChannel.CardPresent
* SCardChannel.CardAtr
* SCardChannel.Protocol
* SCardChannel.Transmit
*
**/
public virtual bool Connect()
{
uint rc;
if (Connected)
{
return(false);
}
Trace.WriteLine("Connect to '" + _reader_name + "', share=" + _share_mode + ", protocol=" + _want_protocols);
rc = SCARD.Connect(_hContext, _reader_name, _share_mode, _want_protocols, ref _hCard, ref _active_protocol);
if (rc != SCARD.S_SUCCESS)
{
Trace.WriteLine(String.Format("Connect error {0:X08} ({0})", rc));
_hCard = IntPtr.Zero;
_last_error = rc;
return(false);
}
UpdateState();
return(true);
}
public static string[] GetReaderList(IntPtr hContext, string Groups)
{
int i, j = 0;
string s = "";
uint rc;
uint readers_size = 0;
int readers_count = 0;
rc = SCARD.ListReaders(hContext, Groups, null, ref readers_size);
if (rc != SCARD.S_SUCCESS)
{
return(null);
}
string readers_str = new string(' ', (int)readers_size);
rc = SCARD.ListReaders(hContext, Groups, readers_str, ref readers_size);
if (rc != SCARD.S_SUCCESS)
{
return(null);
}
for (i = 0; i < readers_size; i++)
{
if (readers_str[i] == '\0')
{
if (i > 0)
{
readers_count++;
}
if (readers_str[i + 1] == '\0')
{
break;
}
}
}
string[] readers = new string[readers_count];
if (readers_count > 0)
{
for (i = 0; i < readers_size; i++)
{
if (readers_str[i] == '\0')
{
readers[j++] = s;
if (readers_str[i + 1] == '\0')
{
break;
}
s = "";
}
else
{
s = s + readers_str[i];
}
}
}
return(readers);
}
private void InitList()
{
_reader_names = SCARD.GetReaderList(_scope, _groups);
}
private void StatusChangeMonitor()
{
try
{
_last_error = SCARD.EstablishContext(_scope, IntPtr.Zero, IntPtr.Zero, ref _status_change_context);
if (_last_error != SCARD.S_SUCCESS)
{
_status_change_callback(null, 0, null);
return;
}
uint global_notification_state = SCARD.STATE_UNAWARE;
while (_status_change_running)
{
if (_status_change_context == IntPtr.Zero)
{
_last_error = SCARD.EstablishContext(_scope, IntPtr.Zero, IntPtr.Zero, ref _status_change_context);
if (_last_error != SCARD.S_SUCCESS)
{
_status_change_callback(null, 0, null);
return;
}
}
/* Construct the list of readers we'll have to monitor */
/* --------------------------------------------------- */
bool global_notification_fired = false;
int monitor_count = 0;
if (_auto_update_list)
{
if (_reader_names != null)
{
monitor_count = _reader_names.Length;
if (monitor_count > 10)
{
Trace.WriteLine("PC/SC: not able to monitor more than 10 readers (Windows limitation)");
monitor_count = 10;
}
}
monitor_count += 1;
}
else
{
if (_reader_names == null)
{
SCARD.ReleaseContext(_status_change_context);
_status_change_context = IntPtr.Zero;
_status_change_callback(null, 0, null);
return;
}
monitor_count = _reader_names.Length;
if (monitor_count > 10)
{
Trace.WriteLine("PC/SC: not able to monitor more than 10 readers (Windows limitation)");
monitor_count = 10;
}
}
SCARD.READERSTATE[] states = new SCARD.READERSTATE[monitor_count];
for (int i = 0; i < states.Length; i++)
{
states[i] = new SCARD.READERSTATE();
if (_auto_update_list && (i == 0))
{
/* Magic string to be notified of reader arrival/removal */
states[i].szReader = "\\\\?PNP?\\NOTIFICATION";
states[i].dwCurrentState = global_notification_state;
}
else
{
/* Reader name */
states[i].szReader = _reader_names[i - 1];
states[i].dwCurrentState = SCARD.STATE_UNAWARE;
}
states[i].dwEventState = 0;
states[i].cbAtr = 0;
states[i].rgbAtr = null;
states[i].pvUserData = IntPtr.Zero;
}
/* Now wait for an event */
/* --------------------- */
while (_status_change_running && !global_notification_fired)
{
uint rc = SCARD.GetStatusChange(_status_change_context, 250, states, (uint)states.Length);
if ((rc == SCARD.E_SERVICE_STOPPED) || (rc == SCARD.E_NO_SERVICE))
{
Trace.WriteLine("PC/SC: no service");
SCARD.ReleaseContext(_status_change_context);
_status_change_context = IntPtr.Zero;
continue;
}
if (!_status_change_running)
{
break;
}
if (rc == SCARD.E_TIMEOUT)
{
continue;
}
if (rc != SCARD.S_SUCCESS)
{
Trace.WriteLine("PC/SC: monitor failed with error " + rc);
_last_error = rc;
/* Broadcast a message saying we have a problem! */
for (int i = 0; i < states.Length; i++)
{
states[i].dwEventState = 0 | SCARD.STATE_CHANGED;
}
}
for (int i = 0; i < states.Length; i++)
{
if ((states[i].dwEventState & SCARD.STATE_CHANGED) != 0)
{
/* This reader has fired an event */
/* ------------------------------ */
if (_auto_update_list && (i == 0))
{
/* Not a reader but \\\\?PNP?\\NOTIFICATION */
/* ---------------------------------------- */
Trace.WriteLine("PC/SC: the list of readers has changed");
global_notification_fired = true;
global_notification_state = states[0].dwEventState;
SCARD.ReleaseContext(_status_change_context);
_last_error = SCARD.EstablishContext(_scope, IntPtr.Zero, IntPtr.Zero, ref _status_change_context);
if (_last_error != SCARD.S_SUCCESS)
{
_status_change_callback(null, 0, null);
return;
}
/* Refresh the list of readers */
_reader_names = SCARD.GetReaderList(_status_change_context, _groups);
/* Notify the application that the list of readers has changed */
try
{
_status_change_callback(null, global_notification_state & ~SCARD.STATE_CHANGED, null);
}
catch {}
}
else
{
/* This is a reader */
/* ---------------- */
Trace.WriteLine("PC/SC: status of reader " + states[i].szReader + " has changed");
states[i].dwCurrentState = states[i].dwEventState;
if ((states[i].dwCurrentState & SCARD.STATE_IGNORE) != 0)
{
states[i].dwCurrentState = SCARD.STATE_UNAVAILABLE;
}
CardBuffer card_atr = null;
/* Is there a card involved ? */
if ((states[i].dwEventState & SCARD.STATE_PRESENT) != 0)
{
try
{
card_atr = new CardBuffer(states[i].rgbAtr, (int)states[i].cbAtr);
}
catch {}
}
try
{
_status_change_callback(states[i].szReader, states[i].dwEventState & ~SCARD.STATE_CHANGED, card_atr);
}
catch {}
}
}
}
}
}
SCARD.ReleaseContext(_status_change_context);
_status_change_context = IntPtr.Zero;
}
catch (ThreadInterruptedException) { } /* Hide Interrupt */
}
protected virtual void StatusChangeMonitor()
{
uint rc;
IntPtr hContext = IntPtr.Zero;
_reader_state = SCARD.STATE_UNAWARE;
_card_atr = null;
rc =
SCARD.EstablishContext(_scope, IntPtr.Zero, IntPtr.Zero, ref hContext);
if (rc != SCARD.S_SUCCESS)
{
return;
}
SCARD.READERSTATE[] states = new SCARD.READERSTATE[1];
states[0] = new SCARD.READERSTATE();
states[0].szReader = _reader_name;
states[0].pvUserData = IntPtr.Zero;
states[0].dwCurrentState = 0;
states[0].dwEventState = 0;
states[0].cbAtr = 0;
states[0].rgbAtr = null;
while (_status_change_running)
{
try {
rc = SCARD.GetStatusChange(hContext, 1000, states, 1);
} catch (ThreadInterruptedException) {
break;
}
if (!_status_change_running)
{
break;
}
if (rc == SCARD.E_TIMEOUT)
{
continue;
}
if (rc != SCARD.S_SUCCESS)
{
_last_error = rc;
SCARD.ReleaseContext(hContext);
if (_status_change_callback != null)
{
_status_change_callback(0, null);
}
break;
}
if ((states[0].dwEventState & SCARD.STATE_CHANGED) != 0)
{
states[0].dwCurrentState = states[0].dwEventState;
if (_status_change_callback != null)
{
CardBuffer card_atr = null;
if ((states[0].dwEventState & SCARD.STATE_PRESENT) != 0)
{
card_atr =
new CardBuffer(states[0].rgbAtr, (int)states[0].cbAtr);
}
_status_change_callback(states[0].dwEventState & ~SCARD.
STATE_CHANGED, card_atr);
}
}
}
SCARD.ReleaseContext(hContext);
}
public SCardMifareUltraLightC(SCardChannel card_channel)
{
hCard = card_channel.hCard;
_last_error = SCARD.MifUlC_AttachLibrary(hCard);
}
protected virtual void UpdateState()
{
uint rc;
_reader_state = SCARD.STATE_UNAWARE;
_card_atr = null;
if (Connected)
{
byte[] atr_buffer = new byte[36];
uint atr_length = 36;
uint dummy = 0;
rc =
SCARD.Status(_hCard, IntPtr.Zero, ref dummy,
ref _reader_state, ref _active_protocol, atr_buffer,
ref atr_length);
if (rc != SCARD.S_SUCCESS)
{
_last_error = rc;
return;
}
_card_atr = new CardBuffer(atr_buffer, (int)atr_length);
}
else
{
SCARD.READERSTATE[] states = new SCARD.READERSTATE[1];
states[0] = new SCARD.READERSTATE();
states[0].szReader = _reader_name;
states[0].pvUserData = IntPtr.Zero;
states[0].dwCurrentState = 0;
states[0].dwEventState = 0;
states[0].cbAtr = 0;
states[0].rgbAtr = null;
try
{
rc = SCARD.GetStatusChange(_hContext, 0, states, 1);
}
catch (ThreadInterruptedException)
{
rc = SCARD.E_CANCELLED;
}
if (rc != SCARD.S_SUCCESS)
{
_last_error = rc;
return;
}
_reader_state = states[0].dwEventState;
if ((_reader_state & SCARD.STATE_PRESENT) != 0)
{
_card_atr = new CardBuffer(states[0].rgbAtr, (int)states[0].cbAtr);
}
}
}
public SCardReaderList()
{
_reader_names = SCARD.GetReaderList();
_auto_update_list = true;
}
