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274c12fc56
unleashed-firmware/applications/nfc/nfc_worker.c
SG 274c12fc56
[FL-2274] Inventing streams and moving FFF to them (#981) 
* Streams: string stream
* String stream: updated insert/delete api
* Streams: generic stream interface and string stream implementation
* Streams: helpers for insert and delete_and_insert
* FFF: now compatible with streams
* MinUnit: introduced tests with arguments
* FFF: stream access violation
* Streams: copy data between streams
* Streams: file stream
* FFF: documentation
* FFStream: documentation
* FFF: alloc as file
* MinUnit: support for nested tests
* Streams: changed delete_and_insert, now it returns success flag. Added ability dump stream inner parameters and data to cout.
* FFF: simplified file open function
* Streams: unit tests
* FFF: tests
* Streams: declare cache_size constant as define, to allow variable modified arrays
* FFF: lib moved to a separate folder
* iButton: new FFF
* RFID: new FFF
* Animations: new FFF
* IR: new FFF
* NFC: new FFF
* Flipper file format: delete lib
* U2F: new FFF
* Subghz: new FFF and streams
* Streams: read line
* Streams: split
* FuriCore: implement memset with extra asserts
* FuriCore: implement extra heap asserts without inventing memset
* Scene manager: protected access to the scene id stack with a size check
* NFC worker: dirty fix for issue where hal_nfc was busy on app start
* Furi: update allocator to erase memory on allocation. Replace furi_alloc with malloc.
* FuriCore: cleanup memmgr code.
* Furi HAL: furi_hal_init is split into critical and non-critical parts. The critical part is currently clock and console.
* Memmgr: added ability to track allocations and deallocations through console.
* FFStream: some speedup
* Streams, FF: minor fixes
* Tests: restore
* File stream: a slightly more thread-safe version of file_stream_delete_and_insert

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2022-02-18 22:53:46 +03:00

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#include "nfc_worker_i.h"
#include <furi_hal.h>
#include "nfc_protocols/emv_decoder.h"
#include "nfc_protocols/mifare_ultralight.h"
#define TAG "NfcWorker"
/***************************** NFC Worker API *******************************/
NfcWorker* nfc_worker_alloc() {
NfcWorker* nfc_worker = malloc(sizeof(NfcWorker));
// Worker thread attributes
nfc_worker->thread_attr.name = "NfcWorker";
nfc_worker->thread_attr.stack_size = 8192;
nfc_worker->callback = NULL;
nfc_worker->context = NULL;
// Initialize rfal
while(furi_hal_nfc_is_busy()) {
osDelay(10);
}
nfc_worker_change_state(nfc_worker, NfcWorkerStateReady);
return nfc_worker;
}
void nfc_worker_free(NfcWorker* nfc_worker) {
furi_assert(nfc_worker);
free(nfc_worker);
}
NfcWorkerState nfc_worker_get_state(NfcWorker* nfc_worker) {
return nfc_worker->state;
}
void nfc_worker_start(
NfcWorker* nfc_worker,
NfcWorkerState state,
NfcDeviceData* dev_data,
NfcWorkerCallback callback,
void* context) {
furi_assert(nfc_worker);
furi_assert(dev_data);
while(furi_hal_nfc_is_busy()) {
osDelay(10);
}
nfc_worker->callback = callback;
nfc_worker->context = context;
nfc_worker->dev_data = dev_data;
nfc_worker_change_state(nfc_worker, state);
nfc_worker->thread = osThreadNew(nfc_worker_task, nfc_worker, &nfc_worker->thread_attr);
}
void nfc_worker_stop(NfcWorker* nfc_worker) {
furi_assert(nfc_worker);
if(nfc_worker->state == NfcWorkerStateBroken || nfc_worker->state == NfcWorkerStateReady) {
return;
}
furi_hal_nfc_stop();
nfc_worker_change_state(nfc_worker, NfcWorkerStateStop);
}
void nfc_worker_change_state(NfcWorker* nfc_worker, NfcWorkerState state) {
nfc_worker->state = state;
}
/***************************** NFC Worker Thread *******************************/
void nfc_worker_task(void* context) {
NfcWorker* nfc_worker = context;
furi_hal_power_insomnia_enter();
furi_hal_nfc_exit_sleep();
if(nfc_worker->state == NfcWorkerStateDetect) {
nfc_worker_detect(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateEmulate) {
nfc_worker_emulate(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateReadEMVApp) {
nfc_worker_read_emv_app(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateReadEMV) {
nfc_worker_read_emv(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateEmulateApdu) {
nfc_worker_emulate_apdu(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateReadMifareUl) {
nfc_worker_read_mifare_ul(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateEmulateMifareUl) {
nfc_worker_emulate_mifare_ul(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateField) {
nfc_worker_field(nfc_worker);
}
furi_hal_nfc_deactivate();
nfc_worker_change_state(nfc_worker, NfcWorkerStateReady);
furi_hal_power_insomnia_exit();
osThreadExit();
}
void nfc_worker_detect(NfcWorker* nfc_worker) {
rfalNfcDevice* dev_list;
rfalNfcDevice* dev;
uint8_t dev_cnt;
NfcDeviceCommonData* result = &nfc_worker->dev_data->nfc_data;
while(nfc_worker->state == NfcWorkerStateDetect) {
if(furi_hal_nfc_detect(&dev_list, &dev_cnt, 1000, true)) {
// Process first found device
dev = &dev_list[0];
result->uid_len = dev->nfcidLen;
memcpy(result->uid, dev->nfcid, dev->nfcidLen);
if(dev->type == RFAL_NFC_LISTEN_TYPE_NFCA) {
result->device = NfcDeviceNfca;
result->atqa[0] = dev->dev.nfca.sensRes.anticollisionInfo;
result->atqa[1] = dev->dev.nfca.sensRes.platformInfo;
result->sak = dev->dev.nfca.selRes.sak;
if(mf_ul_check_card_type(
dev->dev.nfca.sensRes.anticollisionInfo,
dev->dev.nfca.sensRes.platformInfo,
dev->dev.nfca.selRes.sak)) {
result->protocol = NfcDeviceProtocolMifareUl;
} else if(dev->rfInterface == RFAL_NFC_INTERFACE_ISODEP) {
result->protocol = NfcDeviceProtocolEMV;
} else {
result->protocol = NfcDeviceProtocolUnknown;
}
} else if(dev->type == RFAL_NFC_LISTEN_TYPE_NFCB) {
result->device = NfcDeviceNfcb;
} else if(dev->type == RFAL_NFC_LISTEN_TYPE_NFCF) {
result->device = NfcDeviceNfcf;
} else if(dev->type == RFAL_NFC_LISTEN_TYPE_NFCV) {
result->device = NfcDeviceNfcv;
}
// Notify caller and exit
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
break;
}
osDelay(100);
}
}
bool nfc_worker_emulate_uid_callback(
uint8_t* buff_rx,
uint16_t buff_rx_len,
uint8_t* buff_tx,
uint16_t* buff_tx_len,
uint32_t* data_type,
void* context) {
furi_assert(context);
NfcWorker* nfc_worker = context;
NfcReaderRequestData* reader_data = &nfc_worker->dev_data->reader_data;
reader_data->size = buff_rx_len / 8;
if(reader_data->size > 0) {
memcpy(reader_data->data, buff_rx, reader_data->size);
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
}
return true;
}
void nfc_worker_emulate(NfcWorker* nfc_worker) {
NfcDeviceCommonData* data = &nfc_worker->dev_data->nfc_data;
while(nfc_worker->state == NfcWorkerStateEmulate) {
furi_hal_nfc_emulate_nfca(
data->uid,
data->uid_len,
data->atqa,
data->sak,
nfc_worker_emulate_uid_callback,
nfc_worker,
1000);
}
}
void nfc_worker_read_emv_app(NfcWorker* nfc_worker) {
ReturnCode err;
rfalNfcDevice* dev_list;
EmvApplication emv_app = {};
uint8_t dev_cnt = 0;
uint8_t tx_buff[255] = {};
uint16_t tx_len = 0;
uint8_t* rx_buff;
uint16_t* rx_len;
NfcDeviceData* result = nfc_worker->dev_data;
while(nfc_worker->state == NfcWorkerStateReadEMVApp) {
memset(&emv_app, 0, sizeof(emv_app));
if(furi_hal_nfc_detect(&dev_list, &dev_cnt, 1000, false)) {
// Card was found. Check that it supports EMV
if(dev_list[0].rfInterface == RFAL_NFC_INTERFACE_ISODEP) {
result->nfc_data.uid_len = dev_list[0].dev.nfca.nfcId1Len;
result->nfc_data.atqa[0] = dev_list[0].dev.nfca.sensRes.anticollisionInfo;
result->nfc_data.atqa[1] = dev_list[0].dev.nfca.sensRes.platformInfo;
result->nfc_data.sak = dev_list[0].dev.nfca.selRes.sak;
memcpy(
result->nfc_data.uid, dev_list[0].dev.nfca.nfcId1, result->nfc_data.uid_len);
result->nfc_data.protocol = NfcDeviceProtocolEMV;
FURI_LOG_D(TAG, "Send select PPSE command");
tx_len = emv_prepare_select_ppse(tx_buff);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_D(TAG, "Error during selection PPSE request: %d", err);
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Select PPSE response received. Start parsing response");
if(emv_decode_ppse_response(rx_buff, *rx_len, &emv_app)) {
FURI_LOG_D(TAG, "Select PPSE responce parced");
// Notify caller and exit
result->emv_data.aid_len = emv_app.aid_len;
memcpy(result->emv_data.aid, emv_app.aid, emv_app.aid_len);
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
break;
} else {
FURI_LOG_D(TAG, "Can't find pay application");
furi_hal_nfc_deactivate();
continue;
}
} else {
// Can't find EMV card
FURI_LOG_W(TAG, "Card doesn't support EMV");
furi_hal_nfc_deactivate();
}
} else {
// Can't find EMV card
FURI_LOG_D(TAG, "Can't find any cards");
furi_hal_nfc_deactivate();
}
osDelay(20);
}
}
void nfc_worker_read_emv(NfcWorker* nfc_worker) {
ReturnCode err;
rfalNfcDevice* dev_list;
EmvApplication emv_app = {};
uint8_t dev_cnt = 0;
uint8_t tx_buff[255] = {};
uint16_t tx_len = 0;
uint8_t* rx_buff;
uint16_t* rx_len;
NfcDeviceData* result = nfc_worker->dev_data;
while(nfc_worker->state == NfcWorkerStateReadEMV) {
memset(&emv_app, 0, sizeof(emv_app));
if(furi_hal_nfc_detect(&dev_list, &dev_cnt, 1000, false)) {
// Card was found. Check that it supports EMV
if(dev_list[0].rfInterface == RFAL_NFC_INTERFACE_ISODEP) {
result->nfc_data.uid_len = dev_list[0].dev.nfca.nfcId1Len;
result->nfc_data.atqa[0] = dev_list[0].dev.nfca.sensRes.anticollisionInfo;
result->nfc_data.atqa[1] = dev_list[0].dev.nfca.sensRes.platformInfo;
result->nfc_data.sak = dev_list[0].dev.nfca.selRes.sak;
memcpy(
result->nfc_data.uid, dev_list[0].dev.nfca.nfcId1, result->nfc_data.uid_len);
result->nfc_data.protocol = NfcDeviceProtocolEMV;
FURI_LOG_D(TAG, "Send select PPSE command");
tx_len = emv_prepare_select_ppse(tx_buff);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_D(TAG, "Error during selection PPSE request: %d", err);
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Select PPSE response received. Start parsing response");
if(emv_decode_ppse_response(rx_buff, *rx_len, &emv_app)) {
FURI_LOG_D(TAG, "Select PPSE responce parced");
result->emv_data.aid_len = emv_app.aid_len;
memcpy(result->emv_data.aid, emv_app.aid, emv_app.aid_len);
} else {
FURI_LOG_D(TAG, "Can't find pay application");
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Starting application ...");
tx_len = emv_prepare_select_app(tx_buff, &emv_app);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_D(TAG, "Error during application selection request: %d", err);
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Select application response received. Start parsing response");
if(emv_decode_select_app_response(rx_buff, *rx_len, &emv_app)) {
FURI_LOG_D(TAG, "Card name: %s", emv_app.name);
memcpy(result->emv_data.name, emv_app.name, sizeof(emv_app.name));
} else if(emv_app.pdol.size > 0) {
FURI_LOG_D(TAG, "Can't find card name, but PDOL is present.");
} else {
FURI_LOG_D(TAG, "Can't find card name or PDOL");
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Starting Get Processing Options command ...");
tx_len = emv_prepare_get_proc_opt(tx_buff, &emv_app);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_D(TAG, "Error during Get Processing Options command: %d", err);
furi_hal_nfc_deactivate();
continue;
}
if(emv_decode_get_proc_opt(rx_buff, *rx_len, &emv_app)) {
FURI_LOG_D(TAG, "Card number parsed");
result->emv_data.number_len = emv_app.card_number_len;
memcpy(result->emv_data.number, emv_app.card_number, emv_app.card_number_len);
// Notify caller and exit
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
break;
} else {
// Mastercard doesn't give PAN / card number as GPO response
// Iterate over all files found in application
bool pan_found = false;
for(uint8_t i = 0; (i < emv_app.afl.size) && !pan_found; i += 4) {
uint8_t sfi = emv_app.afl.data[i] >> 3;
uint8_t record_start = emv_app.afl.data[i + 1];
uint8_t record_end = emv_app.afl.data[i + 2];
// Iterate over all records in file
for(uint8_t record = record_start; record <= record_end; ++record) {
tx_len = emv_prepare_read_sfi_record(tx_buff, sfi, record);
err = furi_hal_nfc_data_exchange(
tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_D(
TAG,
"Error reading application sfi %d, record %d",
sfi,
record);
}
if(emv_decode_read_sfi_record(rx_buff, *rx_len, &emv_app)) {
pan_found = true;
break;
}
}
}
if(pan_found) {
FURI_LOG_D(TAG, "Card PAN found");
result->emv_data.number_len = emv_app.card_number_len;
memcpy(
result->emv_data.number,
emv_app.card_number,
result->emv_data.number_len);
if(emv_app.exp_month) {
result->emv_data.exp_mon = emv_app.exp_month;
result->emv_data.exp_year = emv_app.exp_year;
}
if(emv_app.country_code) {
result->emv_data.country_code = emv_app.country_code;
}
if(emv_app.currency_code) {
result->emv_data.currency_code = emv_app.currency_code;
}
// Notify caller and exit
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
break;
} else {
FURI_LOG_D(TAG, "Can't read card number");
}
furi_hal_nfc_deactivate();
}
} else {
// Can't find EMV card
FURI_LOG_W(TAG, "Card doesn't support EMV");
furi_hal_nfc_deactivate();
}
} else {
// Can't find EMV card
FURI_LOG_D(TAG, "Can't find any cards");
furi_hal_nfc_deactivate();
}
osDelay(20);
}
}
void nfc_worker_emulate_apdu(NfcWorker* nfc_worker) {
ReturnCode err;
uint8_t tx_buff[255] = {};
uint16_t tx_len = 0;
uint8_t* rx_buff;
uint16_t* rx_len;
NfcDeviceCommonData params = {
.uid = {0xCF, 0x72, 0xd4, 0x40},
.uid_len = 4,
.atqa = {0x00, 0x04},
.sak = 0x20,
.device = NfcDeviceNfca,
.protocol = NfcDeviceProtocolEMV,
};
// Test RX data
const uint8_t debug_rx[] = {
0xba, 0x0b, 0xba, 0xba, 0x20, 0x00, 0x02, 0x28, 0xde, 0xad, 0xbe, 0xef, 0x00, 0xca, 0xca,
0xca, 0xfe, 0xfa, 0xce, 0x14, 0x88, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0xba,
0x0b, 0xba, 0xba, 0x20, 0x00, 0x02, 0x28, 0xde, 0xad, 0xbe, 0xef, 0x00, 0xca, 0xca, 0xca,
0xfe, 0xfa, 0xce, 0x14, 0x88, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99,
0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0xba, 0x0b,
0xba, 0xba, 0x20, 0x00, 0x02, 0x28, 0xde, 0xad, 0xbe, 0xef, 0x00, 0xca, 0xca, 0xca, 0xfe,
0xfa, 0xce, 0x14, 0x88, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa,
0xbb, 0xcc, 0xdd, 0xee, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0xba, 0x0b, 0xba,
0xba, 0x20, 0x00, 0x02, 0x28, 0xde, 0xad, 0xbe, 0xef, 0x00, 0xca, 0xca, 0xca, 0xfe, 0xfa,
0xce, 0x14, 0x88, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb,
0xcc, 0xdd, 0xee, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0xba, 0x0b, 0xba, 0xba,
0x20, 0x00, 0x02, 0x28, 0xde, 0xad, 0xbe, 0xef, 0x00, 0xca, 0xca, 0xca, 0xfe, 0xfa, 0xce,
0x14, 0x88, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc,
0xdd, 0xee, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0xba, 0x0b, 0xba, 0xba, 0x20,
0x00, 0x02, 0x28, 0xde, 0xad, 0xbe, 0xef, 0x00, 0xca, 0xca, 0xca, 0xfe, 0xfa, 0xce, 0x14,
0x88, 0x00};
// Test TX data
const uint8_t debug_tx[] = {
0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xff, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32,
0x10, 0x14, 0x88, 0x02, 0x28, 0x00, 0x00, 0xca, 0xca, 0x00, 0xc0, 0xc0, 0x00, 0xde, 0xad,
0xbe, 0xef, 0xce, 0xee, 0xec, 0xca, 0xfe, 0xba, 0xba, 0xb0, 0xb0, 0xac, 0xdc, 0x11, 0x12,
0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xff, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x14, 0x88, 0x02, 0x28, 0x00, 0x00, 0xca, 0xca, 0x00, 0xc0, 0xc0, 0x00, 0xde, 0xad, 0xbe,
0xef, 0xce, 0xee, 0xec, 0xca, 0xfe, 0xba, 0xba, 0xb0, 0xb0, 0xac, 0xdc, 0x11, 0x12, 0x34,
0x56, 0x78, 0x9a, 0xbc, 0xde, 0xff, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x14,
0x88, 0x02, 0x28, 0x00, 0x00, 0xca, 0xca, 0x00, 0xc0, 0xc0, 0x00, 0xde, 0xad, 0xbe, 0xef,
0xce, 0xee, 0xec, 0xca, 0xfe, 0xba, 0xba, 0xb0, 0xb0, 0xac, 0xdc, 0x11, 0x12, 0x34, 0x56,
0x78, 0x9a, 0xbc, 0xde, 0xff, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x14, 0x88,
0x02, 0x28, 0x00, 0x00, 0xca, 0xca, 0x00, 0xc0, 0xc0, 0x00, 0xde, 0xad, 0xbe, 0xef, 0xce,
0xee, 0xec, 0xca, 0xfe, 0xba, 0xba, 0xb0, 0xb0, 0xac, 0xdc, 0x11, 0x12, 0x34, 0x56, 0x78,
0x9a, 0xbc, 0xde, 0xff, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x14, 0x88, 0x02,
0x28, 0x00, 0x00, 0xca, 0xca, 0x00, 0xc0, 0xc0, 0x00, 0xde, 0xad, 0xbe, 0xef, 0xce, 0xee,
0xec, 0xca, 0xfe, 0xba, 0xba, 0xb0, 0xb0, 0xac, 0xdc, 0x11, 0x12, 0x34, 0x56, 0x78, 0x9a,
0xbc, 0xde, 0xff, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x14, 0x88, 0x02, 0x28,
0x00, 0x00};
while(nfc_worker->state == NfcWorkerStateEmulateApdu) {
if(furi_hal_nfc_listen(params.uid, params.uid_len, params.atqa, params.sak, false, 300)) {
FURI_LOG_D(TAG, "POS terminal detected");
// Read data from POS terminal
err = furi_hal_nfc_data_exchange(NULL, 0, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_D(TAG, "Received Select PPSE");
} else {
FURI_LOG_D(TAG, "Error in 1st data exchange: select PPSE");
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Transive SELECT PPSE ANS");
tx_len = emv_select_ppse_ans(tx_buff);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_D(TAG, "Received Select APP");
} else {
FURI_LOG_D(TAG, "Error in 2nd data exchange: select APP");
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Transive SELECT APP ANS");
tx_len = emv_select_app_ans(tx_buff);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_D(TAG, "Received PDOL");
} else {
FURI_LOG_D(TAG, "Error in 3rd data exchange: receive PDOL");
furi_hal_nfc_deactivate();
continue;
}
FURI_LOG_D(TAG, "Transive PDOL ANS");
tx_len = emv_get_proc_opt_ans(tx_buff);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_D(TAG, "Transive PDOL ANS");
} else {
FURI_LOG_D(TAG, "Error in 4rd data exchange: Transive PDOL ANS");
furi_hal_nfc_deactivate();
continue;
}
if(*rx_len != sizeof(debug_rx) || memcmp(rx_buff, debug_rx, sizeof(debug_rx))) {
FURI_LOG_D(TAG, "Failed long message test");
} else {
FURI_LOG_D(TAG, "Correct debug message received");
tx_len = sizeof(debug_tx);
err = furi_hal_nfc_data_exchange(
(uint8_t*)debug_tx, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_D(TAG, "Transive Debug message");
}
}
furi_hal_nfc_deactivate();
} else {
FURI_LOG_D(TAG, "Can't find reader");
}
osDelay(20);
}
}
void nfc_worker_read_mifare_ul(NfcWorker* nfc_worker) {
ReturnCode err;
rfalNfcDevice* dev_list;
uint8_t dev_cnt = 0;
uint8_t tx_buff[255] = {};
uint16_t tx_len = 0;
uint8_t* rx_buff;
uint16_t* rx_len;
MifareUlDevice mf_ul_read;
NfcDeviceData* result = nfc_worker->dev_data;
while(nfc_worker->state == NfcWorkerStateReadMifareUl) {
furi_hal_nfc_deactivate();
memset(&mf_ul_read, 0, sizeof(mf_ul_read));
if(furi_hal_nfc_detect(&dev_list, &dev_cnt, 300, false)) {
if(dev_list[0].type == RFAL_NFC_LISTEN_TYPE_NFCA &&
mf_ul_check_card_type(
dev_list[0].dev.nfca.sensRes.anticollisionInfo,
dev_list[0].dev.nfca.sensRes.platformInfo,
dev_list[0].dev.nfca.selRes.sak)) {
// Get Mifare Ultralight version
FURI_LOG_D(TAG, "Found Mifare Ultralight tag. Reading tag version");
tx_len = mf_ul_prepare_get_version(tx_buff);
err = furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
mf_ul_parse_get_version_response(rx_buff, &mf_ul_read);
FURI_LOG_D(
TAG,
"Mifare Ultralight Type: %d, Pages: %d",
mf_ul_read.data.type,
mf_ul_read.pages_to_read);
FURI_LOG_D(TAG, "Reading signature ...");
tx_len = mf_ul_prepare_read_signature(tx_buff);
if(furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false)) {
FURI_LOG_D(TAG, "Failed reading signature");
memset(mf_ul_read.data.signature, 0, sizeof(mf_ul_read.data.signature));
} else {
mf_ul_parse_read_signature_response(rx_buff, &mf_ul_read);
}
} else if(err == ERR_TIMEOUT) {
FURI_LOG_D(
TAG,
"Card doesn't respond to GET VERSION command. Setting default read parameters");
err = ERR_NONE;
mf_ul_set_default_version(&mf_ul_read);
// Reinit device
furi_hal_nfc_deactivate();
if(!furi_hal_nfc_detect(&dev_list, &dev_cnt, 300, false)) {
FURI_LOG_D(TAG, "Lost connection. Restarting search");
continue;
}
} else {
FURI_LOG_D(
TAG, "Error getting Mifare Ultralight version. Error code: %d", err);
continue;
}
if(mf_ul_read.support_fast_read) {
FURI_LOG_D(TAG, "Reading pages ...");
tx_len = mf_ul_prepare_fast_read(tx_buff, 0x00, mf_ul_read.pages_to_read - 1);
if(furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false)) {
FURI_LOG_D(TAG, "Failed reading pages");
continue;
} else {
mf_ul_parse_fast_read_response(
rx_buff, 0x00, mf_ul_read.pages_to_read - 1, &mf_ul_read);
}
FURI_LOG_D(TAG, "Reading 3 counters ...");
for(uint8_t i = 0; i < 3; i++) {
tx_len = mf_ul_prepare_read_cnt(tx_buff, i);
if(furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false)) {
FURI_LOG_W(TAG, "Failed reading Counter %d", i);
mf_ul_read.data.counter[i] = 0;
} else {
mf_ul_parse_read_cnt_response(rx_buff, i, &mf_ul_read);
}
}
FURI_LOG_D(TAG, "Checking tearing flags ...");
for(uint8_t i = 0; i < 3; i++) {
tx_len = mf_ul_prepare_check_tearing(tx_buff, i);
if(furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false)) {
FURI_LOG_D(TAG, "Error checking tearing flag %d", i);
mf_ul_read.data.tearing[i] = MF_UL_TEARING_FLAG_DEFAULT;
} else {
mf_ul_parse_check_tearing_response(rx_buff, i, &mf_ul_read);
}
}
} else {
// READ card with READ command (4 pages at a time)
for(uint8_t page = 0; page < mf_ul_read.pages_to_read; page += 4) {
FURI_LOG_D(TAG, "Reading pages %d - %d ...", page, page + 3);
tx_len = mf_ul_prepare_read(tx_buff, page);
if(furi_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false)) {
FURI_LOG_D(TAG, "Read pages %d - %d failed", page, page + 3);
continue;
} else {
mf_ul_parse_read_response(rx_buff, page, &mf_ul_read);
}
}
}
// Fill result data
result->nfc_data.uid_len = dev_list[0].dev.nfca.nfcId1Len;
result->nfc_data.atqa[0] = dev_list[0].dev.nfca.sensRes.anticollisionInfo;
result->nfc_data.atqa[1] = dev_list[0].dev.nfca.sensRes.platformInfo;
result->nfc_data.sak = dev_list[0].dev.nfca.selRes.sak;
result->nfc_data.protocol = NfcDeviceProtocolMifareUl;
memcpy(
result->nfc_data.uid, dev_list[0].dev.nfca.nfcId1, result->nfc_data.uid_len);
result->mf_ul_data = mf_ul_read.data;
// Notify caller and exit
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
break;
} else {
FURI_LOG_W(TAG, "Tag does not support Mifare Ultralight");
}
} else {
FURI_LOG_D(TAG, "Can't find any tags");
}
osDelay(100);
}
}
void nfc_worker_emulate_mifare_ul(NfcWorker* nfc_worker) {
NfcDeviceCommonData* nfc_common = &nfc_worker->dev_data->nfc_data;
MifareUlDevice mf_ul_emulate;
mf_ul_prepare_emulation(&mf_ul_emulate, &nfc_worker->dev_data->mf_ul_data);
while(nfc_worker->state == NfcWorkerStateEmulateMifareUl) {
furi_hal_nfc_emulate_nfca(
nfc_common->uid,
nfc_common->uid_len,
nfc_common->atqa,
nfc_common->sak,
mf_ul_prepare_emulation_response,
&mf_ul_emulate,
5000);
// Check if data was modified
if(mf_ul_emulate.data_changed) {
nfc_worker->dev_data->mf_ul_data = mf_ul_emulate.data;
if(nfc_worker->callback) {
nfc_worker->callback(nfc_worker->context);
}
mf_ul_emulate.data_changed = false;
}
}
}
void nfc_worker_field(NfcWorker* nfc_worker) {
furi_hal_nfc_field_on();
while(nfc_worker->state == NfcWorkerStateField) {
osDelay(50);
}
furi_hal_nfc_field_off();
}
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