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[FL-1039] Emv emulation (#491)

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* nfc: add emulate emv to submenu
* api-hal-nfc: add emv emulation
This commit is contained in:
gornekich
2021-05-26 02:54:44 +03:00
committed by GitHub
parent d92bb18cca
commit e620b310b7
12 changed files with 282 additions and 48 deletions
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72
applications/nfc/nfc_worker.c Executable file → Normal file
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@@ -64,6 +64,8 @@ void nfc_worker_task(void* context) {
nfc_worker_poll(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateReadEMV) {
nfc_worker_read_emv(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateEmulateEMV) {
nfc_worker_emulate_emv(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateEmulate) {
nfc_worker_emulate(nfc_worker);
} else if(nfc_worker->state == NfcWorkerStateField) {
@@ -77,7 +79,6 @@ void nfc_worker_task(void* context) {
void nfc_worker_read_emv(NfcWorker* nfc_worker) {
ReturnCode err;
rfalNfcDevice* dev_list;
rfalNfcDevice* dev_active;
EmvApplication emv_app = {};
uint8_t dev_cnt = 0;
uint8_t tx_buff[255] = {};
@@ -94,11 +95,9 @@ void nfc_worker_read_emv(NfcWorker* nfc_worker) {
if(api_hal_nfc_detect(&dev_list, &dev_cnt, 100, false)) {
// Card was found. Check that it supports EMV
if(dev_list[0].rfInterface == RFAL_NFC_INTERFACE_ISODEP) {
dev_active = &dev_list[0];
FURI_LOG_I(NFC_WORKER_TAG, "Send select PPSE command");
tx_len = emv_prepare_select_ppse(tx_buff);
err = api_hal_nfc_data_exchange(
dev_active, tx_buff, tx_len, &rx_buff, &rx_len, false);
err = api_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_E(NFC_WORKER_TAG, "Error during selection PPSE request: %d", err);
message.type = NfcMessageTypeEMVNotFound;
@@ -117,8 +116,7 @@ void nfc_worker_read_emv(NfcWorker* nfc_worker) {
}
FURI_LOG_I(NFC_WORKER_TAG, "Starting application ...");
tx_len = emv_prepare_select_app(tx_buff, &emv_app);
err = api_hal_nfc_data_exchange(
dev_active, tx_buff, tx_len, &rx_buff, &rx_len, false);
err = api_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_E(
NFC_WORKER_TAG, "Error during application selection request: %d", err);
@@ -140,8 +138,7 @@ void nfc_worker_read_emv(NfcWorker* nfc_worker) {
}
FURI_LOG_I(NFC_WORKER_TAG, "Starting Get Processing Options command ...");
tx_len = emv_prepare_get_proc_opt(tx_buff, &emv_app);
err = api_hal_nfc_data_exchange(
dev_active, tx_buff, tx_len, &rx_buff, &rx_len, false);
err = api_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_E(
NFC_WORKER_TAG, "Error during Get Processing Options command: %d", err);
@@ -171,7 +168,7 @@ void nfc_worker_read_emv(NfcWorker* nfc_worker) {
for(uint8_t record = record_start; record <= record_end; ++record) {
tx_len = emv_prepare_read_sfi_record(tx_buff, sfi, record);
err = api_hal_nfc_data_exchange(
dev_active, tx_buff, tx_len, &rx_buff, &rx_len, false);
tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err != ERR_NONE) {
FURI_LOG_E(
NFC_WORKER_TAG,
@@ -215,6 +212,61 @@ void nfc_worker_read_emv(NfcWorker* nfc_worker) {
api_hal_nfc_deactivate();
}
void nfc_worker_emulate_emv(NfcWorker* nfc_worker) {
ReturnCode err;
uint8_t tx_buff[255] = {};
uint16_t tx_len = 0;
uint8_t* rx_buff;
uint16_t* rx_len;
while(nfc_worker->state == NfcWorkerStateEmulateEMV) {
if(api_hal_nfc_listen(1000)) {
FURI_LOG_I(NFC_WORKER_TAG, "POS terminal detected");
// Read data from POS terminal
err = api_hal_nfc_data_exchange(NULL, 0, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_I(NFC_WORKER_TAG, "Received Select PPSE");
} else {
FURI_LOG_E(NFC_WORKER_TAG, "Error in 1st data exchange: select PPSE");
api_hal_nfc_deactivate();
continue;
}
FURI_LOG_I(NFC_WORKER_TAG, "Transive SELECT PPSE ANS");
tx_len = emv_select_ppse_ans(tx_buff);
err = api_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_I(NFC_WORKER_TAG, "Received Select APP");
} else {
FURI_LOG_E(NFC_WORKER_TAG, "Error in 2nd data exchange: select APP");
api_hal_nfc_deactivate();
continue;
}
FURI_LOG_I(NFC_WORKER_TAG, "Transive SELECT APP ANS");
tx_len = emv_select_app_ans(tx_buff);
err = api_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_I(NFC_WORKER_TAG, "Received PDOL");
} else {
FURI_LOG_E(NFC_WORKER_TAG, "Error in 3rd data exchange: receive PDOL");
api_hal_nfc_deactivate();
continue;
}
FURI_LOG_I(NFC_WORKER_TAG, "Transive PDOL ANS");
tx_len = emv_get_proc_opt_ans(tx_buff);
err = api_hal_nfc_data_exchange(tx_buff, tx_len, &rx_buff, &rx_len, false);
if(err == ERR_NONE) {
FURI_LOG_I(NFC_WORKER_TAG, "Received PDOL");
}
api_hal_nfc_deactivate();
} else {
FURI_LOG_W(NFC_WORKER_TAG, "Can't find reader");
}
osDelay(20);
}
}
void nfc_worker_poll(NfcWorker* nfc_worker) {
rfalNfcDevice* dev_list;
uint8_t dev_cnt;
@@ -249,7 +301,7 @@ void nfc_worker_poll(NfcWorker* nfc_worker) {
furi_check(
osMessageQueuePut(nfc_worker->message_queue, &message, 0, osWaitForever) == osOK);
}
osDelay(20);
osDelay(5);
}
}