int
explain_application (MifareTag tag, MifareDESFireAID aid, MifareDESFireKey key)
{
char buffer[1024];
if (mifare_desfire_select_application (tag, aid) < 0) {
fprintf (stderr, "mifare_desfire_select_application() failed\n");
return -1;
}
if (mifare_desfire_authenticate (tag, USER_ACCESS_KEYNO, key) < 0) {
freefare_perror (tag, "mifare_desfire_authenticate_des");
return -1;
}
ssize_t len = mifare_desfire_read_data_ex (tag, UCARD_METDATA_FILENO, 0, 0, buffer, USER_ACCESS_COMMUNICATION_MODE);
if (len < 0) {
fprintf (stderr, "mifare_desfire_read_data_ex() failed\n");
return -1;
}
char *p = buffer;
fprintf (stdout, " Application \"%s\" with AID 0x%06x has the following files:\n",
p,
mifare_desfire_aid_get_aid (aid));
p = strchr (p, '\0');
p++;
int file_no = 0;
while (*p) {
fprintf (stdout, " File %2d - %s\n", file_no++, p);
p = strchr (p, '\0');
p++;
if (UCARD_METDATA_FILENO == file_no)
file_no++;
}
return 0;
}
int
main(int argc, char *argv[])
{
int error = EXIT_SUCCESS;
nfc_device *device = NULL;
FreefareTag *tags = NULL;
if (argc > 1)
errx (EXIT_FAILURE, "usage: %s", argv[0]);
nfc_connstring devices[8];
size_t device_count;
nfc_context *context;
nfc_init (&context);
if (context == NULL)
errx(EXIT_FAILURE, "Unable to init libnfc (malloc)");
device_count = nfc_list_devices (context, devices, 8);
if (device_count <= 0)
errx (EXIT_FAILURE, "No NFC device found.");
for (size_t d = 0; d < device_count; d++) {
device = nfc_open (context, devices[d]);
if (!device) {
warnx ("nfc_open() failed.");
error = EXIT_FAILURE;
continue;
}
tags = freefare_get_tags (device);
if (!tags) {
nfc_close (device);
errx (EXIT_FAILURE, "Error listing tags.");
}
for (int i = 0; (!error) && tags[i]; i++) {
if (MIFARE_DESFIRE != freefare_get_tag_type (tags[i]))
continue;
int res;
char *tag_uid = freefare_get_tag_uid (tags[i]);
res = mifare_desfire_connect (tags[i]);
if (res < 0) {
warnx ("Can't connect to Mifare DESFire target.");
error = 1;
break;
}else{
printf("Connected uid: %s\n", tag_uid);
}
uint8_t key_version;
mifare_desfire_get_key_version (tags[i], 0, &key_version);
MifareDESFireKey key = malloc(sizeof(MifareDESFireKey));
res = mifare_desfire_auto_authenticate(tags[i], 0, key);
if(res < 0){
printf("Error while geting the master key.....\n");
break;
}
MifareDESFireAID aid = mifare_desfire_aid_new (0x112233);
//res = mifare_desfire_create_application (tags[i], aid, 0xFF, 1);
size_t count;
MifareDESFireAID **aids = malloc(sizeof(MifareDESFireAID*));
res = mifare_desfire_get_application_ids(tags[i], aids, &count);
if(res==0){
printf("found %d applicaton/s\n", (int)count);
//struct MifareDESFireAID aidArr[count] = *aids;
int j;
for(j=0; j<count; j++){
// Fails here
aid = (*aids)[j];
printf("aid %d: %x\n", j, mifare_desfire_aid_get_aid(aid));
if(mifare_desfire_aid_get_aid(aid) == 0x112233){
if(mifare_desfire_select_application(tags[i], aid) == 0){
printf("app selected...\n");
size_t fileCount = 0;
uint8_t **files = malloc(sizeof(uint8_t));
int rra = mifare_desfire_get_file_ids(tags[i], files, &fileCount);
printf("%d found %d file ids\n", rra, (int)fileCount);
}
}
}
printf("ok\n");
}else{
printf("error res is %d\n", res);
}
mifare_desfire_key_free (key);
free (tag_uid);
mifare_desfire_disconnect (tags[i]);
}
freefare_free_tags (tags);
nfc_close (device);
}
nfc_exit (context);
exit (error);
} /* main() */
