int
main (int argc, const char *argv[])
{
nfc_device_t *pnd;
(void) argc;
(void) argv;
// Display libnfc version
const char *acLibnfcVersion = nfc_version ();
printf ("%s use libnfc %s\n", argv[0], acLibnfcVersion);
// Connect using the first available NFC device
pnd = nfc_connect (NULL);
if (pnd == NULL) {
ERR ("%s", "Unable to connect to NFC device.");
return EXIT_FAILURE;
}
printf ("Connected to NFC device: %s\n", pnd->acName);
// Print the example's menu
printf ("\nSelect the communication mode:\n");
printf ("[1] Virtual card mode.\n");
printf ("[2] Wired card mode.\n");
printf ("[3] Dual card mode.\n");
printf (">> ");
// Take user's choice
char input = getchar ();
int mode = input - '0' + 1;
printf ("\n");
if (mode < VIRTUAL_CARD_MODE || mode > DUAL_CARD_MODE) {
ERR ("%s", "Invalid selection.");
return EXIT_FAILURE;
}
// Connect with the SAM
sam_connection (pnd, mode);
switch (mode) {
case VIRTUAL_CARD_MODE:
{
// FIXME after the loop the device doesn't respond to host commands...
printf ("Now the SAM is readable for 1 minute from an external reader.\n");
wait_one_minute ();
}
break;
case WIRED_CARD_MODE:
{
nfc_target_t nt;
// Set connected NFC device to initiator mode
nfc_initiator_init (pnd);
// Drop the field for a while
if (!nfc_configure (pnd, NDO_ACTIVATE_FIELD, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Let the reader only try once to find a tag
if (!nfc_configure (pnd, NDO_INFINITE_SELECT, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Enable field so more power consuming cards can power themselves up
if (!nfc_configure (pnd, NDO_ACTIVATE_FIELD, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Read the SAM's info
const nfc_modulation_t nmSAM = {
.nmt = NMT_ISO14443A,
.nbr = NBR_106,
};
if (!nfc_initiator_select_passive_target (pnd, nmSAM, NULL, 0, &nt)) {
nfc_perror (pnd, "nfc_initiator_select_passive_target");
ERR ("%s", "Reading of SAM info failed.");
return EXIT_FAILURE;
}
printf ("The following ISO14443A tag (SAM) was found:\n\n");
print_nfc_iso14443a_info (nt.nti.nai, true);
}
break;
case DUAL_CARD_MODE:
{
byte_t abtRx[MAX_FRAME_LEN];
size_t szRx;
nfc_target_t nt = {
.nm.nmt = NMT_ISO14443A,
.nm.nbr = NBR_UNDEFINED,
.nti.nai.abtAtqa = { 0x04, 0x00 },
.nti.nai.abtUid = { 0x08, 0xad, 0xbe, 0xef },
.nti.nai.btSak = 0x20,
.nti.nai.szUidLen = 4,
.nti.nai.szAtsLen = 0,
};
printf ("Now both, NFC device (configured as target) and SAM are readables from an external NFC initiator.\n");
printf ("Please note that NFC device (configured as target) stay in target mode until it receive RATS, ATR_REQ or proprietary command.\n");
if (!nfc_target_init (pnd, &nt, abtRx, &szRx)) {
nfc_perror(pnd, "nfc_target_init");
return EXIT_FAILURE;
}
// wait_one_minute ();
}
break;
}
// Disconnect from the SAM
sam_connection (pnd, NORMAL_MODE);
// Disconnect from NFC device
nfc_disconnect (pnd);
return EXIT_SUCCESS;
}
int
main (int argc, char *argv[])
{
int arg;
// Get commandline options
for (arg = 1; arg < argc; arg++) {
if (0 == strcmp (argv[arg], "-h")) {
print_usage (argv);
exit(EXIT_SUCCESS);
} else if (0 == strcmp (argv[arg], "-q")) {
quiet_output = true;
} else {
ERR ("%s is not supported option.", argv[arg]);
print_usage (argv);
exit(EXIT_FAILURE);
}
}
// Try to open the NFC reader
pnd = nfc_connect (NULL);
if (!pnd) {
printf ("Error connecting NFC reader\n");
exit(EXIT_FAILURE);
}
// Initialise NFC device as "initiator"
nfc_initiator_init (pnd);
// Drop the field for a while
if (!nfc_configure (pnd, NDO_ACTIVATE_FIELD, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Configure the CRC
if (!nfc_configure (pnd, NDO_HANDLE_CRC, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Configure parity settings
if (!nfc_configure (pnd, NDO_HANDLE_PARITY, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Use raw send/receive methods
if (!nfc_configure (pnd, NDO_EASY_FRAMING, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Disable 14443-4 autoswitching
if (!nfc_configure (pnd, NDO_AUTO_ISO14443_4, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Force 14443-A mode
if (!nfc_configure (pnd, NDO_FORCE_ISO14443_A, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Enable field so more power consuming cards can power themselves up
if (!nfc_configure (pnd, NDO_ACTIVATE_FIELD, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
printf ("Connected to NFC reader: %s\n\n", pnd->acName);
// Send the 7 bits request command specified in ISO 14443A (0x26)
if (!transmit_bits (abtReqa, 7)) {
printf ("Error: No tag available\n");
nfc_disconnect (pnd);
return 1;
}
memcpy (abtAtqa, abtRx, 2);
// Anti-collision
transmit_bytes (abtSelectAll, 2);
// Check answer
if ((abtRx[0] ^ abtRx[1] ^ abtRx[2] ^ abtRx[3] ^ abtRx[4]) != 0) {
printf("WARNING: BCC check failed!\n");
}
// Save the UID CL1
memcpy (abtRawUid, abtRx, 4);
//Prepare and send CL1 Select-Command
memcpy (abtSelectTag + 2, abtRx, 5);
iso14443a_crc_append (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
// Test if we are dealing with a CL2
if (abtSak & CASCADE_BIT) {
szCL = 2;//or more
// Check answer
if (abtRawUid[0] != 0x88) {
printf("WARNING: Cascade bit set but CT != 0x88!\n");
}
}
if(szCL == 2) {
// We have to do the anti-collision for cascade level 2
// Prepare CL2 commands
abtSelectAll[0] = 0x95;
// Anti-collision
transmit_bytes (abtSelectAll, 2);
// Check answer
if ((abtRx[0] ^ abtRx[1] ^ abtRx[2] ^ abtRx[3] ^ abtRx[4]) != 0) {
printf("WARNING: BCC check failed!\n");
}
// Save UID CL2
memcpy (abtRawUid + 4, abtRx, 4);
// Selection
abtSelectTag[0] = 0x95;
memcpy (abtSelectTag + 2, abtRx, 5);
iso14443a_crc_append (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
// Test if we are dealing with a CL3
if (abtSak & CASCADE_BIT) {
szCL = 3;
// Check answer
if (abtRawUid[0] != 0x88) {
printf("WARNING: Cascade bit set but CT != 0x88!\n");
}
}
if ( szCL == 3) {
// We have to do the anti-collision for cascade level 3
// Prepare and send CL3 AC-Command
abtSelectAll[0] = 0x97;
transmit_bytes (abtSelectAll, 2);
// Check answer
if ((abtRx[0] ^ abtRx[1] ^ abtRx[2] ^ abtRx[3] ^ abtRx[4]) != 0) {
printf("WARNING: BCC check failed!\n");
}
// Save UID CL3
memcpy (abtRawUid + 8, abtRx, 4);
// Prepare and send final Select-Command
abtSelectTag[0] = 0x97;
memcpy (abtSelectTag + 2, abtRx, 5);
iso14443a_crc_append (abtSelectTag, 7);
transmit_bytes (abtSelectTag, 9);
abtSak = abtRx[0];
}
}
// Request ATS, this only applies to tags that support ISO 14443A-4
if (abtRx[0] & SAK_FLAG_ATS_SUPPORTED) {
iso14443a_crc_append(abtRats, 2);
transmit_bytes (abtRats, 4);
}
// Done, halt the tag now
iso14443a_crc_append(abtHalt, 2);
transmit_bytes (abtHalt, 4);
printf ("\nFound tag with\n UID: ");
switch (szCL) {
case 1:
printf ("%02x%02x%02x%02x", abtRawUid[0], abtRawUid[1], abtRawUid[2], abtRawUid[3]);
break;
case 2:
printf ("%02x%02x%02x", abtRawUid[1], abtRawUid[2], abtRawUid[3]);
printf ("%02x%02x%02x%02x", abtRawUid[4], abtRawUid[5], abtRawUid[6], abtRawUid[7]);
break;
case 3:
printf ("%02x%02x%02x", abtRawUid[1], abtRawUid[2], abtRawUid[3]);
printf ("%02x%02x%02x", abtRawUid[5], abtRawUid[6], abtRawUid[7]);
printf ("%02x%02x%02x%02x", abtRawUid[8], abtRawUid[9], abtRawUid[10], abtRawUid[11]);
break;
}
printf("\n");
printf("ATQA: %02x%02x\n SAK: %02x\n", abtAtqa[1], abtAtqa[0], abtSak);
nfc_disconnect (pnd);
return 0;
}
int
main (int argc, char *argv[])
{
// Try to open the NFC reader
pnd = nfc_connect (NULL);
if (pnd == NULL) {
ERR("Unable to connect to NFC device");
return EXIT_FAILURE;
}
printf ("Connected to NFC device: %s\n", pnd->acName);
printf ("Emulating NDEF tag now, please touch it with a second NFC device\n");
nfc_target_t nt = {
.nm.nmt = NMT_ISO14443A,
.nm.nbr = NBR_UNDEFINED, // Will be updated by nfc_target_init()
.nti.nai.abtAtqa = { 0x00, 0x04 },
.nti.nai.abtUid = { 0x08, 0x00, 0xb0, 0x0b },
.nti.nai.btSak = 0x20,
.nti.nai.szUidLen = 4,
.nti.nai.szAtsLen = 0,
};
if (!nfc_target_init (pnd, &nt, abtRx, &szRx)) {
nfc_perror (pnd, "nfc_target_init");
ERR("Could not come out of auto-emulation, no command was received");
return EXIT_FAILURE;
}
if (!quiet_output) {
printf ("Received data: ");
print_hex (abtRx, szRx);
}
//Receiving data: e0 40
//= RATS, FSD=48
//Actually PN532 already sent back the ATS so nothing to send now
receive_bytes();
//Receiving data: 00 a4 04 00 06 e1 03 e1 03 e1 03
//= App Select by name "e103e103e103"
send_bytes((const byte_t*)"\x6a\x87",2);
receive_bytes();
//Receiving data: 00 a4 04 00 06 e1 03 e1 03 e1 03
//= App Select by name "e103e103e103"
send_bytes((const byte_t*)"\x6a\x87",2);
receive_bytes();
//Receiving data: 00 a4 04 00 07 d2 76 00 00 85 01 00
//= App Select by name "D2760000850100"
send_bytes((const byte_t*)"\x90\x00",2);
receive_bytes();
//Receiving data: 00 a4 00 00 02 e1 03
//= Select CC
send_bytes((const byte_t*)"\x90\x00",2);
receive_bytes();
//Receiving data: 00 b0 00 00 0f
//= ReadBinary CC
//We send CC + OK
send_bytes((const byte_t*)"\x00\x0f\x10\x00\x3b\x00\x34\x04\x06\xe1\x04\x0e\xe0\x00\x00\x90\x00",17);
receive_bytes();
//Receiving data: 00 a4 00 00 02 e1 04
//= Select NDEF
send_bytes((const byte_t*)"\x90\x00",2);
receive_bytes();
//Receiving data: 00 b0 00 00 02
//= Read first 2 NDEF bytes
//Sent NDEF Length=0x21
send_bytes((const byte_t*)"\x00\x21\x90\x00",4);
receive_bytes();
//Receiving data: 00 b0 00 02 21
//= Read remaining of NDEF file
send_bytes((const byte_t*)"\xd1\x02\x1c\x53\x70\x91\x01\x09\x54\x02\x65\x6e\x4c\x69\x62\x6e\x66\x63\x51\x01\x0b\x55\x03\x6c\x69\x62\x6e\x66\x63\x2e\x6f\x72\x67\x90\x00",35);
nfc_disconnect(pnd);
exit (EXIT_SUCCESS);
}
int
main(int argc, char *argv[])
{
MYSQL *conn;
MYSQL_RES *result;
MYSQL_ROW row;
int retval;
conn = mysql_init(NULL);
retval = mysql_real_connect(conn, def_host_name, def_user_name, def_password, def_db_name, def_port_num, def_socket_name, def_client_flag);
if(!retval)
{
printf("Error connecting to database: %s\n", mysql_error(conn));
return -1;
}
printf("Connection successful\n");
int error = 0;
nfc_device_t *device = NULL;
MifareTag *tags = NULL;
Mad mad;
MifareClassicKey transport_key = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
char ndef_input[15] = {'\0'};
char ID[9] = {'\0'};
double balance = 0;
printf("\nID: ");
scanf("%s", ID);
while (getchar() != '\n') continue;
printf("\nBalance: ");
scanf("%lf", &balance);
while (getchar() != '\n') continue;
ID[0] = toupper(ID[0]);
ID[1] = toupper(ID[1]);
char balance_char[6] = {'\0'};
snprintf(balance_char, 6, "%.2f", balance);
//ensure balance always with 4 digit, 4.00 => 04.00
char final_balance[6] = {'\0'};
if(strlen(balance_char) != 5)
{
strcat(final_balance, "0");
strcat(final_balance, balance_char);
}
else
{
strcpy(final_balance, balance_char);
}
strcat(ndef_input, ID);
strcat(ndef_input, final_balance);
int i = 0;
if (ndef_input == NULL) {
printf("Write default message.\n");
for(i=0; i < sizeof(ndef_default_msg); i++)
{
ndef_msg[i] = (uint8_t)ndef_default_msg[i];
}
ndef_msg_len = sizeof(ndef_default_msg);
}
else {
for(i=0; i < strlen(ndef_input); i++)
{
ndef_msg[i] = (uint8_t)ndef_input[i];
}
ndef_msg_len = strlen(ndef_input);
}
printf ("NDEF message is %zu bytes long.\n", ndef_msg_len);
struct mifare_classic_key_and_type *card_write_keys;
if (!(card_write_keys = malloc (40 * sizeof (*card_write_keys)))) {
err (EXIT_FAILURE, "malloc");
}
nfc_device_desc_t devices[8];
size_t device_count;
nfc_list_devices (devices, 8, &device_count);
if (!device_count)
errx (EXIT_FAILURE, "No NFC device found.");
for (size_t d = 0; d < device_count; d++) {
device = nfc_connect (&(devices[d]));
if (!device) {
warnx ("nfc_connect() failed.");
error = EXIT_FAILURE;
continue;
}
tags = freefare_get_tags (device);
if (!tags) {
nfc_disconnect (device);
errx (EXIT_FAILURE, "Error listing MIFARE classic tag.");
}
for (int i = 0; (!error) && tags[i]; i++)
{
switch (freefare_get_tag_type (tags[i])) {
case CLASSIC_1K:
case CLASSIC_4K:
break;
default:
continue;
}
char *tag_uid = freefare_get_tag_uid (tags[i]);
char buffer[BUFSIZ];
printf ("Found %s with UID %s.\n", freefare_get_tag_friendly_name (tags[i]), tag_uid);
bool write_ndef = true;
for (int n = 0; n < 40; n++) {
memcpy(card_write_keys[n].key, transport_key, sizeof (transport_key));
card_write_keys[n].type = MFC_KEY_A;
}
if (write_ndef)
{
switch (freefare_get_tag_type (tags[i])) {
case CLASSIC_4K:
if (!search_sector_key (tags[i], 0x10, &(card_write_keys[0x10].key), &(card_write_keys[0x10].type))) {
error = 1;
goto error;
}
/* fallthrough */
case CLASSIC_1K:
if (!search_sector_key (tags[i], 0x00, &(card_write_keys[0x00].key), &(card_write_keys[0x00].type))) {
error = 1;
goto error;
}
break;
default:
/* Keep compiler quiet */
break;
}
if (!error) {
/* Ensure the auth key is always a B one. If not, change it! */
switch (freefare_get_tag_type (tags[i])) {
case CLASSIC_4K:
if (card_write_keys[0x10].type != MFC_KEY_B) {
if( 0 != fix_mad_trailer_block (device, tags[i], 0x10, card_write_keys[0x10].key, card_write_keys[0x10].type)) {
error = 1;
goto error;
}
memcpy (&(card_write_keys[0x10].key), &default_keyb, sizeof (MifareClassicKey));
card_write_keys[0x10].type = MFC_KEY_B;
}
/* fallthrough */
case CLASSIC_1K:
if (card_write_keys[0x00].type != MFC_KEY_B) {
if( 0 != fix_mad_trailer_block (device, tags[i], 0x00, card_write_keys[0x00].key, card_write_keys[0x00].type)) {
error = 1;
goto error;
}
memcpy (&(card_write_keys[0x00].key), &default_keyb, sizeof (MifareClassicKey));
card_write_keys[0x00].type = MFC_KEY_B;
}
break;
default:
/* Keep compiler quiet */
break;
}
}
size_t encoded_size;
uint8_t *tlv_data = tlv_encode (3, ndef_msg, ndef_msg_len, &encoded_size);
/*
* At his point, we should have collected all information needed to
* succeed.
*/
// If the card already has a MAD, load it.
if ((mad = mad_read (tags[i]))) {
// If our application already exists, erase it.
MifareClassicSectorNumber *sectors, *p;
sectors = p = mifare_application_find (mad, mad_nfcforum_aid);
if (sectors) {
while (*p) {
if (mifare_classic_authenticate (tags[i], mifare_classic_sector_last_block(*p), default_keyb, MFC_KEY_B) < 0) {
nfc_perror (device, "mifare_classic_authenticate");
error = 1;
goto error;
}
if (mifare_classic_format_sector (tags[i], *p) < 0) {
nfc_perror (device, "mifare_classic_format_sector");
error = 1;
goto error;
}
p++;
}
}
free (sectors);
mifare_application_free (mad, mad_nfcforum_aid);
} else {
// Create a MAD and mark unaccessible sectors in the card
if (!(mad = mad_new ((freefare_get_tag_type (tags[i]) == CLASSIC_4K) ? 2 : 1))) {
perror ("mad_new");
error = 1;
goto error;
}
MifareClassicSectorNumber max_s;
switch (freefare_get_tag_type (tags[i])) {
case CLASSIC_1K:
max_s = 15;
break;
case CLASSIC_4K:
max_s = 39;
break;
default:
/* Keep compiler quiet */
break;
}
// Mark unusable sectors as so
for (size_t s = max_s; s; s--) {
if (s == 0x10)
continue;
if (!search_sector_key (tags[i], s, &(card_write_keys[s].key), &(card_write_keys[s].type))) {
mad_set_aid (mad, s, mad_defect_aid);
} else if ((memcmp (card_write_keys[s].key, transport_key, sizeof (transport_key)) != 0) &&
(card_write_keys[s].type != MFC_KEY_A)) {
// Revert to transport configuration
if (mifare_classic_format_sector (tags[i], s) < 0) {
nfc_perror (device, "mifare_classic_format_sector");
error = 1;
goto error;
}
}
}
}
MifareClassicSectorNumber *sectors = mifare_application_alloc (mad, mad_nfcforum_aid, encoded_size);
if (!sectors) {
nfc_perror (device, "mifare_application_alloc");
error = EXIT_FAILURE;
goto error;
}
if (mad_write (tags[i], mad, card_write_keys[0x00].key, card_write_keys[0x10].key) < 0) {
nfc_perror (device, "mad_write");
error = EXIT_FAILURE;
goto error;
}
int s = 0;
while (sectors[s]) {
MifareClassicBlockNumber block = mifare_classic_sector_last_block (sectors[s]);
MifareClassicBlock block_data;
mifare_classic_trailer_block (&block_data, mifare_classic_nfcforum_public_key_a, 0x0, 0x0, 0x0, 0x6, 0x40, default_keyb);
if (mifare_classic_authenticate (tags[i], block, card_write_keys[sectors[s]].key, card_write_keys[sectors[s]].type) < 0) {
nfc_perror (device, "mifare_classic_authenticate");
error = EXIT_FAILURE;
goto error;
}
if (mifare_classic_write (tags[i], block, block_data) < 0) {
nfc_perror (device, "mifare_classic_write");
error = EXIT_FAILURE;
goto error;
}
s++;
}
if ((ssize_t) encoded_size != mifare_application_write (tags[i], mad, mad_nfcforum_aid, tlv_data, encoded_size, default_keyb, MCAB_WRITE_KEYB)) {
nfc_perror (device, "mifare_application_write");
error = EXIT_FAILURE;
goto error;
}
//create new student record in database
char sql_stmnt[57] = {'\0'};
int n = 0;
//filter tag_uid
ulong uid_length = strlen(tag_uid);
char uid_esc[(2 * uid_length)+1];
mysql_real_escape_string(conn, uid_esc, tag_uid, uid_length);
//filter ID
ulong id_length = strlen(ID);
char id_esc[(2 * id_length)+1];
mysql_real_escape_string(conn, id_esc, ID, id_length);
n = snprintf(sql_stmnt, 57, "INSERT INTO student VALUES('%s', '%s', %.1f)", uid_esc, id_esc, balance);
retval = mysql_real_query(conn, sql_stmnt, n);
if(retval)
{
printf("Inserting data from DB Failed\n");
return -1;
}
printf("Insert to DB successful\n");
free (sectors);
free (tlv_data);
free (mad);
}
error:
free (tag_uid);
}
//should at the line 412, but the compiler keep on complaining
//jump into scope of identifier with variably modified type
//no idea why that happens, goto is always call inside any {} to outside error:
//even at 412, still not outside enough
freefare_free_tags (tags);
nfc_disconnect (device);
}
free (card_write_keys);
mysql_free_result(result);
mysql_close(conn);
exit (error);
}
int
main (int argc, const char *argv[])
{
bool bReadAction;
FILE *pfDump;
if (argc < 3) {
printf ("\n");
printf ("%s r|w <dump.mfd>\n", argv[0]);
printf ("\n");
printf ("r|w - Perform read from or write to card\n");
printf ("<dump.mfd> - MiFare Dump (MFD) used to write (card to MFD) or (MFD to card)\n");
printf ("\n");
return 1;
}
DBG ("\nChecking arguments and settings\n");
bReadAction = tolower ((int) ((unsigned char) *(argv[1])) == 'r');
if (bReadAction) {
memset (&mtDump, 0x00, sizeof (mtDump));
} else {
pfDump = fopen (argv[2], "rb");
if (pfDump == NULL) {
ERR ("Could not open dump file: %s\n", argv[2]);
return 1;
}
if (fread (&mtDump, 1, sizeof (mtDump), pfDump) != sizeof (mtDump)) {
ERR ("Could not read from dump file: %s\n", argv[2]);
fclose (pfDump);
return 1;
}
fclose (pfDump);
}
DBG ("Successfully opened the dump file\n");
// Try to open the NFC device
pnd = nfc_connect (NULL);
if (pnd == NULL) {
ERR ("Error connecting NFC device\n");
return 1;
}
nfc_initiator_init (pnd);
// Drop the field for a while
if (!nfc_configure (pnd, NDO_ACTIVATE_FIELD, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Let the device only try once to find a tag
if (!nfc_configure (pnd, NDO_INFINITE_SELECT, false)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
if (!nfc_configure (pnd, NDO_HANDLE_CRC, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
if (!nfc_configure (pnd, NDO_HANDLE_PARITY, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
// Enable field so more power consuming cards can power themselves up
if (!nfc_configure (pnd, NDO_ACTIVATE_FIELD, true)) {
nfc_perror (pnd, "nfc_configure");
exit (EXIT_FAILURE);
}
printf ("Connected to NFC device: %s\n", pnd->acName);
// Try to find a MIFARE Ultralight tag
if (!nfc_initiator_select_passive_target (pnd, nmMifare, NULL, 0, &nt)) {
ERR ("no tag was found\n");
nfc_disconnect (pnd);
return 1;
}
// Test if we are dealing with a MIFARE compatible tag
if (nt.nti.nai.abtAtqa[1] != 0x44) {
ERR ("tag is not a MIFARE Ultralight card\n");
nfc_disconnect (pnd);
return EXIT_FAILURE;
}
// Get the info from the current tag
printf ("Found MIFARE Ultralight card with UID: ");
size_t szPos;
for (szPos = 0; szPos < nt.nti.nai.szUidLen; szPos++) {
printf ("%02x", nt.nti.nai.abtUid[szPos]);
}
printf("\n");
if (bReadAction) {
if (read_card ()) {
printf ("Writing data to file: %s ... ", argv[2]);
fflush (stdout);
pfDump = fopen (argv[2], "wb");
if (pfDump == NULL) {
printf ("Could not open file: %s\n", argv[2]);
return EXIT_FAILURE;
}
if (fwrite (&mtDump, 1, sizeof (mtDump), pfDump) != sizeof (mtDump)) {
printf ("Could not write to file: %s\n", argv[2]);
return EXIT_FAILURE;
}
fclose (pfDump);
printf ("Done.\n");
}
} else {
write_card ();
}
nfc_disconnect (pnd);
return EXIT_SUCCESS;
}
int main(int argc, const char* argv[])
{
byte* pbtTx = null;
ui32 uiTxBits;
// Try to open the NFC reader
pdi = nfc_connect();
if (pdi == INVALID_DEVICE_INFO)
{
printf("Error connecting NFC second reader\n");
return 1;
}
printf("\n");
printf("[+] Connected to NFC reader: %s\n",pdi->acName);
printf("[+] Try to break out the auto-simulation, this requires a second reader!\n");
printf("[+] To do this, please send any command after the anti-collision\n");
printf("[+] For example, send a RATS command or use the \"anticol\" tool\n");
if (!nfc_target_init(pdi,abtRecv,&uiRecvBits))
{
printf("Error: Could not come out of auto-simulation, no command was received\n");
return 1;
}
printf("[+] Received initiator command: ");
print_hex_bits(abtRecv,uiRecvBits);
printf("[+] Configuring communication\n");
nfc_configure(pdi,DCO_HANDLE_CRC,false);
nfc_configure(pdi,DCO_HANDLE_PARITY,true);
printf("[+] Done, the simulated tag is initialized\n\n");
while(true)
{
// Test if we received a frame
if (nfc_target_receive_bits(pdi,abtRecv,&uiRecvBits,null))
{
// Prepare the command to send back for the anti-collision request
switch(uiRecvBits)
{
case 7: // Request or Wakeup
pbtTx = abtAtqa;
uiTxBits = 16;
// New anti-collsion session started
printf("\n");
break;
case 16: // Select All
pbtTx = abtUidBcc;
uiTxBits = 40;
break;
case 72: // Select Tag
pbtTx = abtSak;
uiTxBits = 24;
break;
default: // unknown length?
uiTxBits = 0;
break;
}
printf("R: ");
print_hex_bits(abtRecv,uiRecvBits);
// Test if we know how to respond
if(uiTxBits)
{
// Send and print the command to the screen
nfc_target_send_bits(pdi,pbtTx,uiTxBits,null);
printf("T: ");
print_hex_bits(pbtTx,uiTxBits);
}
}
}
nfc_disconnect(pdi);
}
int
main (int argc, const char *argv[])
{
size_t szFound;
size_t i;
nfc_device_t *pnd;
nfc_device_desc_t *pnddDevices;
const char *acLibnfcVersion;
bool result;
byte_t abtRx[PN53x_EXTENDED_FRAME_MAX_LEN];
size_t szRx;
const byte_t pncmd_diagnose_communication_line_test[] = { 0xD4, 0x00, 0x00, 0x06, 'l', 'i', 'b', 'n', 'f', 'c' };
const byte_t pncmd_diagnose_rom_test[] = { 0xD4, 0x00, 0x01 };
const byte_t pncmd_diagnose_ram_test[] = { 0xD4, 0x00, 0x02 };
if (argc > 1) {
errx (1, "usage: %s", argv[0]);
}
// Display libnfc version
acLibnfcVersion = nfc_version ();
printf ("%s use libnfc %s\n", argv[0], acLibnfcVersion);
if (!(pnddDevices = malloc (MAX_DEVICE_COUNT * sizeof (*pnddDevices)))) {
fprintf (stderr, "malloc() failed\n");
return EXIT_FAILURE;
}
nfc_list_devices (pnddDevices, MAX_DEVICE_COUNT, &szFound);
if (szFound == 0) {
printf ("No NFC device found.\n");
}
for (i = 0; i < szFound; i++) {
pnd = nfc_connect (&(pnddDevices[i]));
if (pnd == NULL) {
ERR ("%s", "Unable to connect to NFC device.");
return EXIT_FAILURE;
}
printf ("NFC device [%s] connected.\n", pnd->acName);
result = pn53x_transceive (pnd, pncmd_diagnose_communication_line_test, sizeof (pncmd_diagnose_communication_line_test), abtRx, &szRx);
if (result) {
result = (memcmp (pncmd_diagnose_communication_line_test + 2, abtRx, sizeof (pncmd_diagnose_communication_line_test) - 2) == 0);
}
printf (" Communication line test: %s\n", result ? "OK" : "Failed");
result = pn53x_transceive (pnd, pncmd_diagnose_rom_test, sizeof (pncmd_diagnose_rom_test), abtRx, &szRx);
if (result) {
result = ((szRx == 1) && (abtRx[0] == 0x00));
}
printf (" ROM test: %s\n", result ? "OK" : "Failed");
result = pn53x_transceive (pnd, pncmd_diagnose_ram_test, sizeof (pncmd_diagnose_ram_test), abtRx, &szRx);
if (result) {
result = ((szRx == 1) && (abtRx[0] == 0x00));
}
printf (" RAM test: %s\n", result ? "OK" : "Failed");
}
}
