public static bool unlock_card(NFC.nfc_device pnd)
{
byte[] abtRx = new byte[264];
int szRx;
/*
* if (magic2)
* {
* //printf("Don't use R/W with this card, this is not required!\n");
* return false;
* }*/
byte[] abtHalt = { 0x50, 0x00, 0x00, 0x00 };
// special unlock command
byte[] abtUnlock1 = { 0x40 };
byte[] abtUnlock2 = { 0x43 };
// Configure the CRC
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_HANDLE_CRC, false) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(false);
}
// Use raw send/receive methods
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_EASY_FRAMING, false) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(false);
}
ISO14443Subr.iso14443a_crc_append(abtHalt, 2);
szRx = NFC.nfc_initiator_transceive_bytes(pnd, abtHalt, 4, abtRx, abtRx.Length, 0);//transmit_bytes(abtHalt, 4);
// now send unlock
if ((szRx = NFC.nfc_initiator_transceive_bits(pnd, abtUnlock1, 7, null, abtRx, abtRx.Length, null)) < 0)//!transmit_bits(abtUnlock1, 7)
{
//printf("unlock failure!\n");
return(false);
}
if ((szRx = NFC.nfc_initiator_transceive_bits(pnd, abtUnlock2, 1, null, abtRx, abtRx.Length, null)) < 0)//(!transmit_bytes(abtUnlock2, 1))
{
//printf("unlock failure!\n");
return(false);
}
// reset reader
// Configure the CRC
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_HANDLE_CRC, true) < 0)
{
NFC.nfc_perror(pnd, "nfc_device_set_property_bool");
return(false);
}
// Switch off raw send/receive methods
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_EASY_FRAMING, true) < 0)
{
NFC.nfc_perror(pnd, "nfc_device_set_property_bool");
return(false);
}
return(true);
}
unlock_card()
{
/*
* if (magic2)
* {
* //printf("Don't use R/W with this card, this is not required!\n");
* return false;
* }*/
// Configure the CRC
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_HANDLE_CRC, false) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(false);
}
// Use raw send/receive methods
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_EASY_FRAMING, false) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(false);
}
ISO14443Subr.iso14443a_crc_append(abtHalt, 2);
transmit_bytes(abtHalt, 4);
// now send unlock
if (!transmit_bits(abtUnlock1, 7))
{
//printf("unlock failure!\n");
return(false);
}
if (!transmit_bytes(abtUnlock2, 1))
{
//printf("unlock failure!\n");
return(false);
}
// reset reader
// Configure the CRC
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_HANDLE_CRC, true) < 0)
{
NFC.nfc_perror(pnd, "nfc_device_set_property_bool");
return(false);
}
// Switch off raw send/receive methods
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_EASY_FRAMING, true) < 0)
{
NFC.nfc_perror(pnd, "nfc_device_set_property_bool");
return(false);
}
return(true);
}
public static int get_rats(NFC.nfc_device pnd, NFC.nfc_target pnt, byte[] abtRx)
{
int res;
byte[] abtRats = { 0xe0, 0x50 };
// Use raw send/receive methods
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_EASY_FRAMING, false) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(-1);
}
res = NFC.nfc_initiator_transceive_bytes(pnd, abtRats, abtRats.Length, abtRx, abtRx.Length, 0);
if (res > 0)
{
// ISO14443-4 card, turn RF field off/on to access ISO14443-3 again
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_ACTIVATE_FIELD, false) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(-1);
}
if (NFC.nfc_device_set_property_bool(pnd, NFC.nfc_property.NP_ACTIVATE_FIELD, true) < 0)
{
NFC.nfc_perror(pnd, "nfc_configure");
return(-1);
}
}
// Reselect tag after using get_rats, example:
if (NFC.nfc_initiator_select_passive_target(pnd, nmMfClassic, null, 0, pnt) <= 0)
{
//printf("Error: tag disappeared\n");
//NFC.nfc_close(pnd);
//NFC.nfc_exit(context);
//exit(EXIT_FAILURE);
return(-1);
}
return(res);
}