public FileSystem(short size, byte dfMax, byte efMax)
{
_dfMax = dfMax;
_efMax = efMax;
// Allocation of data memory
memory = new byte[(short)(size << 2)];
attributes = new byte[size];
Erase(0, (short)(size << 2));
// Allocation of DF files structures
dedicatedFiles = new DedicatedFile[_dfMax];
byte i;
for (i = 0; i < _dfMax; i++)
{
dedicatedFiles[i] = new DedicatedFile(this);
}
// Allocation of EF files structures
elementaryFiles = new ElementaryFile[_efMax];
for (i = 0; i < _efMax; i++)
{
elementaryFiles[i] = new ElementaryFile(this);
}
}
public JavaCardApplet()
{
_masterFile = new DedicatedFile(new FileSystem(Constants.FILESYSTEM_SIZE, Constants.DF_MAX, Constants.EF_MAX));
_masterFile.Setup(null, 0, Constants.FILESYSTEM_SIZE, Constants.MF_HEADER, 0, (short)Constants.MF_HEADER.Length);
_headerParser = new HeaderParser();
_currentDF = _masterFile;
_currentEF = null;
// Initialize structure for TB100
_masterFile.CreateElementaryFile(0x0000, 0x0006, new byte[] { 0x17, 0xFF, 0x06, 0xE4 }, 0x0000, 0x0004);
_masterFile.CreateElementaryFile(0x0006, 0x0005, new byte[] { 0x1F, 0x6C, 0x05, 0x70 }, 0x0000, 0x0004);
_masterFile.CreateElementaryFile(0x000B, 0x0005, new byte[] { 0x0E, 0x2F, 0xF5, 0xCE }, 0x0000, 0x0004);
_masterFile.CreateElementaryFile(0x0010, 0x0003, new byte[] { 0x0E, 0x10, 0x03, 0xDF }, 0x0000, 0x0004);
_masterFile.CreateDedicatedFile(0x0013, 0x0022, new byte[] { 0x7F, 0x00, 0x00, 0x22, 0xFF, 0xFF, 0xFE, 0x62 }, 0x0000, 0x0008);
ElementaryFile ef0E2F = (ElementaryFile)_masterFile.FindFileByFileId(0x0E2F);
ef0E2F.Write(new byte[] { 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30 }, 0, 0x0002, 2);
ElementaryFile ef0E10 = (ElementaryFile)_masterFile.FindFileByFileId(0x0E10);
ef0E10.Write(new byte[] { 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30 }, 0, 0x0000, 2);
DedicatedFile df7F00 = (DedicatedFile)_masterFile.FindFileByFileId(0x7F00);
df7F00.CreateElementaryFile(0x0000, 0x0010, new byte[] { 0x6F, 0x01, 0x00, 0x10, 0xFF, 0xFF, 0xFF, 0x83 }, 0, 0x0008);
}
/// <summary>
/// Process DELETE FILE instruction (E4)
/// <para>
/// C-APDU: <code>00 E4 00 00 02 {fid}</code>
/// </para>
/// </summary>
/// <param name="apdu"></param>
/// <returns></returns>
private IFakeCardFeedback ProcessDeleteFile(CommandAPDU apdu)
{
byte[] buffer = apdu.GetBuffer();
_ = apdu.SetIncomingAndReceive();
short udcOffset = APDUHelpers.getOffsetCdata(apdu);
short lc = APDUHelpers.getIncomingLength(apdu);
if (lc != 2)
{
ISOException.throwIt(JavaCard.ISO7816.SW_WRONG_P1P2);
}
short fid = Util.getShort(buffer, udcOffset);
if (_currentDF.DeleteFile(fid) == false)
{
ISOException.throwIt(JavaCard.ISO7816.SW_FILE_NOT_FOUND);
}
if (_currentEF != null && fid == _currentEF.GetFileId())
{
_currentEF = null;
}
return(apdu.SetOutgoingAndSend(0, 0));
}
/// <summary>
/// Process SELECT instruction (CC4).
/// <para>
/// C-APDU: <code>00 A4 00 00 02 {FID} {Le}</code>
/// </para>
/// <para>
/// R-APDU: <code>{offset} {size} {header}</code>
/// </para>
/// <list type="table">
/// <item>
/// <term>offset</term>
/// <description>offset of first word of the file, 2 bytes (WORDS).</description>
/// </item>
/// <item>
/// <term>size</term>
/// <description>size of the body of the file (WORDS).</description>
/// </item>
/// </list>
/// </summary>
/// <param name="apdu"></param>
/// <returns></returns>
private IFakeCardFeedback ProcessSelect(CommandAPDU apdu)
{
byte[] buffer = apdu.GetBuffer();
apdu.SetIncomingAndReceive();
short udcOffset = APDUHelpers.getOffsetCdata(apdu);
short lc = (short)apdu.Lc;
if (lc != 2)
{
ISOException.throwIt(JavaCard.ISO7816.SW_WRONG_LENGTH);
}
short fid = Util.getShort(buffer, udcOffset);
File file;
if (fid == 0x3F00)
{
file = _masterFile;
}
else
{
file = _currentDF.FindFileByFileId(fid);
}
if (file == null)
{
ISOException.throwIt(JavaCard.ISO7816.SW_FILE_NOT_FOUND);
}
// Update current DF / EF
if (file.IsDF())
{
_currentDF = (DedicatedFile)file;
_currentEF = null;
}
else
{
_currentEF = (ElementaryFile)file;
}
// Build and send R-APDU
short headerSize = file.GetHeaderSize();
Util.setShort(buffer, 0, (short)(file._inParentBodyOffset >> 2));
Util.setShort(buffer, 2, (short)(file.GetLength() - headerSize));
file.GetHeader(buffer, 4);
// TODO Automagically adds 9000
return(apdu.SetOutgoingAndSend(0, (short)(4 + (headerSize << 2))));
}