int
main(int argc, const char *argv[])
{
(void) argc;
(void) argv;
nfc_context *context;
nfc_init(&context);
if (context == NULL) {
ERR("Unable to init libnfc (malloc)");
exit(EXIT_FAILURE);
}
// Display libnfc version
const char *acLibnfcVersion = nfc_version();
printf("%s uses libnfc %s\n", argv[0], acLibnfcVersion);
// Open using the first available NFC device
nfc_device *pnd;
pnd = nfc_open(context, NULL);
if (pnd == NULL) {
ERR("%s", "Unable to open NFC device.");
nfc_exit(context);
exit(EXIT_FAILURE);
}
printf("NFC device: %s opened\n", nfc_device_get_name(pnd));
// 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
int input = getchar();
printf("\n");
if ((input < '1') || (input > '3')) {
ERR("%s", "Invalid selection.");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
/*
* '1' -> "Virtual mode" (0x02)
* '2' -> "Wired card" (0x03)
* '3' -> "Dual card" (0x04)
*/
int iMode = input - '0' + 0x01;
pn532_sam_mode mode = iMode;
// Connect with the SAM
switch (mode) {
case PSM_VIRTUAL_CARD: {
// FIXME Its a private pn53x function
if (pn532_SAMConfiguration(pnd, mode, 0) < 0) {
nfc_perror(pnd, "pn53x_SAMConfiguration");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
printf("Now the SAM is readable for 1 minute from an external reader.\n");
wait_one_minute();
}
break;
case PSM_WIRED_CARD: {
// Set opened NFC device to initiator mode
if (nfc_initiator_init_secure_element(pnd) < 0) {
nfc_perror(pnd, "nfc_initiator_init_secure_element");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Let the reader only try once to find a tag
if (nfc_device_set_property_bool(pnd, NP_INFINITE_SELECT, false) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Read the SAM's info
const nfc_modulation nmSAM = {
.nmt = NMT_ISO14443A,
.nbr = NBR_106,
};
nfc_target nt;
int res;
if ((res = nfc_initiator_select_passive_target(pnd, nmSAM, NULL, 0, &nt)) < 0) {
nfc_perror(pnd, "nfc_initiator_select_passive_target");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
} else if (res == 0) {
ERR("No SAM found.");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
} else if (res == 1) {
printf("The following ISO14443A tag (SAM) was found:\n");
print_nfc_target(&nt, true);
} else {
ERR("%s", "More than one ISO14442 tag found as SAM.");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
}
break;
case PSM_DUAL_CARD: {
// FIXME Its a private pn53x function
if (pn532_SAMConfiguration(pnd, mode, 0) < 0) {
nfc_perror(pnd, "pn53x_SAMConfiguration");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
uint8_t abtRx[MAX_FRAME_LEN];
nfc_target nt = {
.nm = {
.nmt = NMT_ISO14443A,
.nbr = NBR_UNDEFINED,
},
.nti = {
.nai = {
.abtAtqa = { 0x04, 0x00 },
.abtUid = { 0x08, 0xad, 0xbe, 0xef },
.btSak = 0x20,
.szUidLen = 4,
.szAtsLen = 0,
},
},
};
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;
}
