/// <summary>
/// Issue a read-record command for all records included in the GPO Responce, Tag AFL(Application file locator)
/// </summary>
public void ReadRecords()
{
byte[] afl;
if (GpoTemplateFormat == EmvConstants.GpoTemplateFormat.Format1)
{
List <byte> gpores = TLV_GPO.TagList.Single(t => t.TagStringName == "80").TagValue;
afl = gpores.Skip(2).ToArray();
}
else
{
afl = TLV_GPO.TagList.SingleOrDefault(t => t.TagStringName == "94")?.TagValue.ToArray();
if (afl == null)
{
return;
}
}
AflResult aflpos = TlvTools.AflParser(afl);
EmvRecords = new List <SmartEmvRecord>();
foreach (var entry in aflpos.AflEntries)
{
for (int irecord = entry.StartRecord; irecord <= entry.EndRecord; irecord++)
//foreach (int irecord in Enumerable.Range(entry.StartRecord, entry.EndRecord))
{
CommandApdu apdu = new CommandApdu(IsoCase.Case2Short, _reader.ActiveProtocol);
apdu.CLA = 0x00;
apdu.INS = 0xB2; //GPO
apdu.P1 = (byte)irecord; //select by name
apdu.P2 = (byte)((entry.Sfi << 3) | 4); // First or only occurrence
var res = _reader.TransmitWithLog(apdu); // data buffer
if (res.SW1 == 0x6C)
{
apdu.Le = res.SW2;
res = _reader.TransmitWithLog(apdu); // data buffer
}
if (res.SW1 != (byte)SW1Code.Normal)
{
throw new PCSCException(SCardError.CardUnsupported, "GPO not fully supported");
}
var record = new SmartEmvRecord(entry.Sfi, irecord, (irecord <= entry.OfflineRecords), res.GetData());
EmvRecords.Add(record);
}
}
}
/// <summary>
/// Issues a GPO command.
/// </summary>
/// <remarks>Pdol data , reponce parsing and storing are handled internaly</remarks>
public void GetProcessingOptions()
{
List <byte> pdoldata = new List <byte> {
0x83
};
var pdol = TLV_SELECT.TagList.SingleOrDefault(t => t.TagStringName == "9F38");
if (pdol != null)
{
var tempdata = TlvTools.parseTagLengthData(pdol.TagValue.ToArray());
pdoldata.Add((byte)tempdata.Length);
pdoldata.AddRange(tempdata);
}
else
{
pdoldata.Add(0x00);
}
CommandApdu apdu = new CommandApdu(IsoCase.Case4Short, _reader.ActiveProtocol)
{
CLA = new ClassByte(ClaHighPart.Iso8x, SecureMessagingFormat.None, 0),
INS = 0xA8,
P1 = 0x00,
P2 = 00,
Data = pdoldata.ToArray()
};
var res = _reader.TransmitWithLog(apdu); // data buffer
RES_GPO = res.GetData();
GpoTemplateFormat = (RES_GPO[0] == (byte)EmvConstants.GpoTemplateFormat.Format1)
? EmvConstants.GpoTemplateFormat.Format1
: EmvConstants.GpoTemplateFormat.Format2;
TLV_GPO = new SmartTlv(RES_GPO);
}
