1054 lines
42 KiB
C
1054 lines
42 KiB
C
#include "nfc_worker_i.h"
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#include <furi_hal.h>
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#include <platform.h>
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#include "parsers/nfc_supported_card.h"
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#define TAG "NfcWorker"
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/***************************** NFC Worker API *******************************/
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NfcWorker* nfc_worker_alloc() {
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NfcWorker* nfc_worker = malloc(sizeof(NfcWorker));
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// Worker thread attributes
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nfc_worker->thread = furi_thread_alloc_ex("NfcWorker", 8192, nfc_worker_task, nfc_worker);
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nfc_worker->callback = NULL;
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nfc_worker->context = NULL;
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nfc_worker->storage = furi_record_open(RECORD_STORAGE);
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// Initialize rfal
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while(furi_hal_nfc_is_busy()) {
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furi_delay_ms(10);
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}
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nfc_worker_change_state(nfc_worker, NfcWorkerStateReady);
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nfc_worker->reader_analyzer = reader_analyzer_alloc(nfc_worker->storage);
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return nfc_worker;
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}
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void nfc_worker_free(NfcWorker* nfc_worker) {
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furi_assert(nfc_worker);
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furi_thread_free(nfc_worker->thread);
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furi_record_close(RECORD_STORAGE);
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reader_analyzer_free(nfc_worker->reader_analyzer);
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free(nfc_worker);
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}
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NfcWorkerState nfc_worker_get_state(NfcWorker* nfc_worker) {
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return nfc_worker->state;
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}
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void nfc_worker_start(
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NfcWorker* nfc_worker,
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NfcWorkerState state,
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NfcDeviceData* dev_data,
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NfcWorkerCallback callback,
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void* context) {
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furi_assert(nfc_worker);
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furi_assert(dev_data);
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while(furi_hal_nfc_is_busy()) {
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furi_delay_ms(10);
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}
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nfc_worker->callback = callback;
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nfc_worker->context = context;
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nfc_worker->dev_data = dev_data;
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nfc_worker_change_state(nfc_worker, state);
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furi_thread_start(nfc_worker->thread);
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}
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void nfc_worker_stop(NfcWorker* nfc_worker) {
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furi_assert(nfc_worker);
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furi_assert(nfc_worker->thread);
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if(furi_thread_get_state(nfc_worker->thread) != FuriThreadStateStopped) {
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furi_hal_nfc_stop();
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nfc_worker_change_state(nfc_worker, NfcWorkerStateStop);
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furi_thread_join(nfc_worker->thread);
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}
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}
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void nfc_worker_change_state(NfcWorker* nfc_worker, NfcWorkerState state) {
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nfc_worker->state = state;
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}
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/***************************** NFC Worker Thread *******************************/
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int32_t nfc_worker_task(void* context) {
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NfcWorker* nfc_worker = context;
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furi_hal_nfc_exit_sleep();
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if(nfc_worker->state == NfcWorkerStateRead) {
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if(nfc_worker->dev_data->read_mode == NfcReadModeAuto) {
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nfc_worker_read(nfc_worker);
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} else {
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nfc_worker_read_type(nfc_worker);
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}
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} else if(nfc_worker->state == NfcWorkerStateUidEmulate) {
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nfc_worker_emulate_uid(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateEmulateApdu) {
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nfc_worker_emulate_apdu(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateMfUltralightEmulate) {
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nfc_worker_emulate_mf_ultralight(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateMfClassicEmulate) {
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nfc_worker_emulate_mf_classic(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateMfClassicWrite) {
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nfc_worker_write_mf_classic(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateMfClassicUpdate) {
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nfc_worker_update_mf_classic(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateReadMfUltralightReadAuth) {
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nfc_worker_mf_ultralight_read_auth(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateMfClassicDictAttack) {
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nfc_worker_mf_classic_dict_attack(nfc_worker);
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} else if(nfc_worker->state == NfcWorkerStateAnalyzeReader) {
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nfc_worker_analyze_reader(nfc_worker);
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}
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furi_hal_nfc_sleep();
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nfc_worker_change_state(nfc_worker, NfcWorkerStateReady);
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return 0;
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}
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static bool nfc_worker_read_mf_ultralight(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
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bool read_success = false;
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MfUltralightReader reader = {};
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MfUltralightData data = {};
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, tx_rx, false);
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reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
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}
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do {
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// Try to read supported card
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FURI_LOG_I(TAG, "Trying to read a supported card ...");
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for(size_t i = 0; i < NfcSupportedCardTypeEnd; i++) {
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if(nfc_supported_card[i].protocol == NfcDeviceProtocolMifareUl) {
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if(nfc_supported_card[i].verify(nfc_worker, tx_rx)) {
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if(nfc_supported_card[i].read(nfc_worker, tx_rx)) {
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read_success = true;
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nfc_supported_card[i].parse(nfc_worker->dev_data);
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break;
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}
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} else {
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furi_hal_nfc_sleep();
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}
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}
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}
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if(read_success) break;
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furi_hal_nfc_sleep();
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// Otherwise, try to read as usual
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if(!furi_hal_nfc_detect(&nfc_worker->dev_data->nfc_data, 200)) break;
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if(!mf_ul_read_card(tx_rx, &reader, &data)) break;
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// Copy data
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nfc_worker->dev_data->mf_ul_data = data;
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read_success = true;
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} while(false);
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_stop(nfc_worker->reader_analyzer);
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}
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return read_success;
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}
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static bool nfc_worker_read_mf_classic(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
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furi_assert(nfc_worker->callback);
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bool read_success = false;
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, tx_rx, false);
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reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
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}
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do {
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// Try to read supported card
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FURI_LOG_I(TAG, "Trying to read a supported card ...");
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for(size_t i = 0; i < NfcSupportedCardTypeEnd; i++) {
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if(nfc_supported_card[i].protocol == NfcDeviceProtocolMifareClassic) {
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if(nfc_supported_card[i].verify(nfc_worker, tx_rx)) {
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if(nfc_supported_card[i].read(nfc_worker, tx_rx)) {
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read_success = true;
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nfc_supported_card[i].parse(nfc_worker->dev_data);
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break;
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}
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} else {
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furi_hal_nfc_sleep();
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}
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}
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}
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if(read_success) break;
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// Try to read card with key cache
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FURI_LOG_I(TAG, "Search for key cache ...");
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if(nfc_worker->callback(NfcWorkerEventReadMfClassicLoadKeyCache, nfc_worker->context)) {
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FURI_LOG_I(TAG, "Load keys cache success. Start reading");
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uint8_t sectors_read =
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mf_classic_update_card(tx_rx, &nfc_worker->dev_data->mf_classic_data);
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uint8_t sectors_total =
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mf_classic_get_total_sectors_num(nfc_worker->dev_data->mf_classic_data.type);
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FURI_LOG_I(TAG, "Read %d sectors out of %d total", sectors_read, sectors_total);
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read_success = mf_classic_is_card_read(&nfc_worker->dev_data->mf_classic_data);
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}
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} while(false);
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_stop(nfc_worker->reader_analyzer);
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}
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return read_success;
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}
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static bool nfc_worker_read_mf_desfire(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
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bool read_success = false;
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MifareDesfireData* data = &nfc_worker->dev_data->mf_df_data;
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, tx_rx, false);
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reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
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}
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do {
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if(!furi_hal_nfc_detect(&nfc_worker->dev_data->nfc_data, 300)) break;
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if(!mf_df_read_card(tx_rx, data)) break;
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read_success = true;
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} while(false);
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_stop(nfc_worker->reader_analyzer);
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}
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return read_success;
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}
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static bool nfc_worker_read_bank_card(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
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bool read_success = false;
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EmvApplication emv_app = {};
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EmvData* result = &nfc_worker->dev_data->emv_data;
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, tx_rx, false);
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reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
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}
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// Bank cards require strong field to start application. If we find AID, try at least several
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// times to start EMV application
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uint8_t start_application_attempts = 0;
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while(start_application_attempts < 3) {
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if(nfc_worker->state != NfcWorkerStateRead) break;
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start_application_attempts++;
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if(!furi_hal_nfc_detect(&nfc_worker->dev_data->nfc_data, 300)) break;
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if(emv_read_bank_card(tx_rx, &emv_app)) {
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FURI_LOG_D(TAG, "Bank card number read from %d attempt", start_application_attempts);
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break;
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} else if(emv_app.aid_len && !emv_app.app_started) {
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FURI_LOG_D(
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TAG,
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"AID found but failed to start EMV app from %d attempt",
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start_application_attempts);
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furi_hal_nfc_sleep();
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continue;
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} else {
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FURI_LOG_D(TAG, "Failed to find AID");
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break;
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}
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}
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// Copy data
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if(emv_app.aid_len) {
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result->aid_len = emv_app.aid_len;
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memcpy(result->aid, emv_app.aid, result->aid_len);
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read_success = true;
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}
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if(emv_app.card_number_len) {
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result->number_len = emv_app.card_number_len;
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memcpy(result->number, emv_app.card_number, result->number_len);
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}
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if(emv_app.name_found) {
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memcpy(result->name, emv_app.name, sizeof(emv_app.name));
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}
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if(emv_app.exp_month) {
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result->exp_mon = emv_app.exp_month;
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result->exp_year = emv_app.exp_year;
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}
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if(emv_app.country_code) {
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result->country_code = emv_app.country_code;
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}
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if(emv_app.currency_code) {
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result->currency_code = emv_app.currency_code;
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}
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if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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reader_analyzer_stop(nfc_worker->reader_analyzer);
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}
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return read_success;
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}
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static bool nfc_worker_read_nfca(NfcWorker* nfc_worker, FuriHalNfcTxRxContext* tx_rx) {
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FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
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bool card_read = false;
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furi_hal_nfc_sleep();
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if(mf_ul_check_card_type(nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak)) {
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FURI_LOG_I(TAG, "Mifare Ultralight / NTAG detected");
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nfc_worker->dev_data->protocol = NfcDeviceProtocolMifareUl;
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card_read = nfc_worker_read_mf_ultralight(nfc_worker, tx_rx);
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} else if(mf_classic_check_card_type(nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak)) {
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FURI_LOG_I(TAG, "Mifare Classic detected");
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nfc_worker->dev_data->protocol = NfcDeviceProtocolMifareClassic;
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nfc_worker->dev_data->mf_classic_data.type =
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mf_classic_get_classic_type(nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak);
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card_read = nfc_worker_read_mf_classic(nfc_worker, tx_rx);
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} else if(mf_df_check_card_type(nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak)) {
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FURI_LOG_I(TAG, "Mifare DESFire detected");
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nfc_worker->dev_data->protocol = NfcDeviceProtocolMifareDesfire;
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if(!nfc_worker_read_mf_desfire(nfc_worker, tx_rx)) {
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FURI_LOG_I(TAG, "Unknown card. Save UID");
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nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
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}
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card_read = true;
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} else if(nfc_data->interface == FuriHalNfcInterfaceIsoDep) {
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FURI_LOG_I(TAG, "ISO14443-4 card detected");
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nfc_worker->dev_data->protocol = NfcDeviceProtocolEMV;
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if(!nfc_worker_read_bank_card(nfc_worker, tx_rx)) {
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FURI_LOG_I(TAG, "Unknown card. Save UID");
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nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
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}
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card_read = true;
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} else {
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nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
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card_read = true;
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}
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return card_read;
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}
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void nfc_worker_read(NfcWorker* nfc_worker) {
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furi_assert(nfc_worker);
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furi_assert(nfc_worker->callback);
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nfc_device_data_clear(nfc_worker->dev_data);
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NfcDeviceData* dev_data = nfc_worker->dev_data;
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FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
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FuriHalNfcTxRxContext tx_rx = {};
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NfcWorkerEvent event = 0;
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bool card_not_detected_notified = false;
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while(nfc_worker->state == NfcWorkerStateRead) {
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if(furi_hal_nfc_detect(nfc_data, 300)) {
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// Process first found device
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nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
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card_not_detected_notified = false;
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if(nfc_data->type == FuriHalNfcTypeA) {
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if(nfc_worker_read_nfca(nfc_worker, &tx_rx)) {
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if(dev_data->protocol == NfcDeviceProtocolMifareUl) {
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event = NfcWorkerEventReadMfUltralight;
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break;
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} else if(dev_data->protocol == NfcDeviceProtocolMifareClassic) {
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event = NfcWorkerEventReadMfClassicDone;
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break;
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} else if(dev_data->protocol == NfcDeviceProtocolMifareDesfire) {
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event = NfcWorkerEventReadMfDesfire;
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break;
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} else if(dev_data->protocol == NfcDeviceProtocolEMV) {
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event = NfcWorkerEventReadBankCard;
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break;
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} else if(dev_data->protocol == NfcDeviceProtocolUnknown) {
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event = NfcWorkerEventReadUidNfcA;
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break;
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}
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} else {
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if(dev_data->protocol == NfcDeviceProtocolMifareClassic) {
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event = NfcWorkerEventReadMfClassicDictAttackRequired;
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break;
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}
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}
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} else if(nfc_data->type == FuriHalNfcTypeB) {
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event = NfcWorkerEventReadUidNfcB;
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break;
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} else if(nfc_data->type == FuriHalNfcTypeF) {
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event = NfcWorkerEventReadUidNfcF;
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break;
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} else if(nfc_data->type == FuriHalNfcTypeV) {
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event = NfcWorkerEventReadUidNfcV;
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break;
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}
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} else {
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if(!card_not_detected_notified) {
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nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
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card_not_detected_notified = true;
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}
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}
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furi_hal_nfc_sleep();
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furi_delay_ms(100);
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}
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// Notify caller and exit
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if(event > NfcWorkerEventReserved) {
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nfc_worker->callback(event, nfc_worker->context);
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}
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}
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void nfc_worker_read_type(NfcWorker* nfc_worker) {
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furi_assert(nfc_worker);
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furi_assert(nfc_worker->callback);
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NfcReadMode read_mode = nfc_worker->dev_data->read_mode;
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nfc_device_data_clear(nfc_worker->dev_data);
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NfcDeviceData* dev_data = nfc_worker->dev_data;
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FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
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FuriHalNfcTxRxContext tx_rx = {};
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NfcWorkerEvent event = 0;
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bool card_not_detected_notified = false;
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while(nfc_worker->state == NfcWorkerStateRead) {
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if(furi_hal_nfc_detect(nfc_data, 300)) {
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FURI_LOG_D(TAG, "Card detected");
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furi_hal_nfc_sleep();
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// Process first found device
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nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
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card_not_detected_notified = false;
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if(nfc_data->type == FuriHalNfcTypeA) {
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if(read_mode == NfcReadModeMfClassic) {
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nfc_worker->dev_data->protocol = NfcDeviceProtocolMifareClassic;
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nfc_worker->dev_data->mf_classic_data.type = mf_classic_get_classic_type(
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nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak);
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if(nfc_worker_read_mf_classic(nfc_worker, &tx_rx)) {
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FURI_LOG_D(TAG, "Card read");
|
|
dev_data->protocol = NfcDeviceProtocolMifareClassic;
|
|
event = NfcWorkerEventReadMfClassicDone;
|
|
break;
|
|
} else {
|
|
FURI_LOG_D(TAG, "Card read failed");
|
|
dev_data->protocol = NfcDeviceProtocolMifareClassic;
|
|
event = NfcWorkerEventReadMfClassicDictAttackRequired;
|
|
break;
|
|
}
|
|
} else if(read_mode == NfcReadModeMfUltralight) {
|
|
FURI_LOG_I(TAG, "Mifare Ultralight / NTAG");
|
|
nfc_worker->dev_data->protocol = NfcDeviceProtocolMifareUl;
|
|
if(nfc_worker_read_mf_ultralight(nfc_worker, &tx_rx)) {
|
|
event = NfcWorkerEventReadMfUltralight;
|
|
break;
|
|
}
|
|
} else if(read_mode == NfcReadModeMfDesfire) {
|
|
nfc_worker->dev_data->protocol = NfcDeviceProtocolMifareDesfire;
|
|
if(nfc_worker_read_mf_desfire(nfc_worker, &tx_rx)) {
|
|
event = NfcWorkerEventReadMfDesfire;
|
|
break;
|
|
}
|
|
} else if(read_mode == NfcReadModeEMV) {
|
|
nfc_worker->dev_data->protocol = NfcDeviceProtocolEMV;
|
|
if(nfc_worker_read_bank_card(nfc_worker, &tx_rx)) {
|
|
event = NfcWorkerEventReadBankCard;
|
|
break;
|
|
}
|
|
} else if(read_mode == NfcReadModeNFCA) {
|
|
nfc_worker->dev_data->protocol = NfcDeviceProtocolUnknown;
|
|
event = NfcWorkerEventReadUidNfcA;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
if(!card_not_detected_notified) {
|
|
nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
|
|
card_not_detected_notified = true;
|
|
}
|
|
}
|
|
furi_hal_nfc_sleep();
|
|
furi_delay_ms(100);
|
|
}
|
|
// Notify caller and exit
|
|
if(event > NfcWorkerEventReserved) {
|
|
nfc_worker->callback(event, nfc_worker->context);
|
|
}
|
|
}
|
|
|
|
void nfc_worker_emulate_uid(NfcWorker* nfc_worker) {
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
FuriHalNfcDevData* data = &nfc_worker->dev_data->nfc_data;
|
|
NfcReaderRequestData* reader_data = &nfc_worker->dev_data->reader_data;
|
|
|
|
// TODO add support for RATS
|
|
// Need to save ATS to support ISO-14443A-4 emulation
|
|
|
|
while(nfc_worker->state == NfcWorkerStateUidEmulate) {
|
|
if(furi_hal_nfc_listen(data->uid, data->uid_len, data->atqa, data->sak, false, 100)) {
|
|
if(furi_hal_nfc_tx_rx(&tx_rx, 100)) {
|
|
reader_data->size = tx_rx.rx_bits / 8;
|
|
if(reader_data->size > 0) {
|
|
memcpy(reader_data->data, tx_rx.rx_data, reader_data->size);
|
|
if(nfc_worker->callback) {
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
}
|
|
}
|
|
} else {
|
|
FURI_LOG_E(TAG, "Failed to get reader commands");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nfc_worker_emulate_apdu(NfcWorker* nfc_worker) {
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
FuriHalNfcDevData params = {
|
|
.uid = {0xCF, 0x72, 0xd4, 0x40},
|
|
.uid_len = 4,
|
|
.atqa = {0x00, 0x04},
|
|
.sak = 0x20,
|
|
.type = FuriHalNfcTypeA,
|
|
};
|
|
|
|
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
|
|
reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, &tx_rx, true);
|
|
reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
|
|
}
|
|
|
|
while(nfc_worker->state == NfcWorkerStateEmulateApdu) { //-V1044
|
|
if(furi_hal_nfc_listen(params.uid, params.uid_len, params.atqa, params.sak, false, 300)) {
|
|
FURI_LOG_D(TAG, "POS terminal detected");
|
|
if(emv_card_emulation(&tx_rx)) {
|
|
FURI_LOG_D(TAG, "EMV card emulated");
|
|
}
|
|
} else {
|
|
FURI_LOG_D(TAG, "Can't find reader");
|
|
}
|
|
furi_hal_nfc_sleep();
|
|
furi_delay_ms(20);
|
|
}
|
|
|
|
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
|
|
reader_analyzer_stop(nfc_worker->reader_analyzer);
|
|
}
|
|
}
|
|
|
|
void nfc_worker_mf_ultralight_auth_received_callback(MfUltralightAuth auth, void* context) {
|
|
furi_assert(context);
|
|
|
|
NfcWorker* nfc_worker = context;
|
|
nfc_worker->dev_data->mf_ul_auth = auth;
|
|
if(nfc_worker->callback) {
|
|
nfc_worker->callback(NfcWorkerEventMfUltralightPwdAuth, nfc_worker->context);
|
|
}
|
|
}
|
|
|
|
void nfc_worker_emulate_mf_ultralight(NfcWorker* nfc_worker) {
|
|
FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
|
|
MfUltralightEmulator emulator = {};
|
|
mf_ul_prepare_emulation(&emulator, &nfc_worker->dev_data->mf_ul_data);
|
|
|
|
// TODO rework with reader analyzer
|
|
emulator.auth_received_callback = nfc_worker_mf_ultralight_auth_received_callback;
|
|
emulator.context = nfc_worker;
|
|
|
|
while(nfc_worker->state == NfcWorkerStateMfUltralightEmulate) {
|
|
mf_ul_reset_emulation(&emulator, true);
|
|
furi_hal_nfc_emulate_nfca(
|
|
nfc_data->uid,
|
|
nfc_data->uid_len,
|
|
nfc_data->atqa,
|
|
nfc_data->sak,
|
|
mf_ul_prepare_emulation_response,
|
|
&emulator,
|
|
5000);
|
|
// Check if data was modified
|
|
if(emulator.data_changed) {
|
|
nfc_worker->dev_data->mf_ul_data = emulator.data;
|
|
if(nfc_worker->callback) {
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
}
|
|
emulator.data_changed = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void nfc_worker_mf_classic_key_attack(
|
|
NfcWorker* nfc_worker,
|
|
uint64_t key,
|
|
FuriHalNfcTxRxContext* tx_rx,
|
|
uint16_t start_sector) {
|
|
furi_assert(nfc_worker);
|
|
|
|
bool card_found_notified = true;
|
|
bool card_removed_notified = false;
|
|
|
|
MfClassicData* data = &nfc_worker->dev_data->mf_classic_data;
|
|
uint32_t total_sectors = mf_classic_get_total_sectors_num(data->type);
|
|
|
|
furi_assert(start_sector < total_sectors);
|
|
|
|
// Check every sector's A and B keys with the given key
|
|
for(size_t i = start_sector; i < total_sectors; i++) {
|
|
furi_hal_nfc_sleep();
|
|
if(furi_hal_nfc_activate_nfca(200, NULL)) {
|
|
furi_hal_nfc_sleep();
|
|
if(!card_found_notified) {
|
|
nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
|
|
card_found_notified = true;
|
|
card_removed_notified = false;
|
|
}
|
|
uint8_t block_num = mf_classic_get_sector_trailer_block_num_by_sector(i);
|
|
if(mf_classic_is_sector_read(data, i)) continue;
|
|
if(!mf_classic_is_key_found(data, i, MfClassicKeyA)) {
|
|
FURI_LOG_D(
|
|
TAG,
|
|
"Trying A key for sector %d, key: %04lx%08lx",
|
|
i,
|
|
(uint32_t)(key >> 32),
|
|
(uint32_t)key);
|
|
if(mf_classic_authenticate(tx_rx, block_num, key, MfClassicKeyA)) {
|
|
mf_classic_set_key_found(data, i, MfClassicKeyA, key);
|
|
FURI_LOG_D(TAG, "Key found");
|
|
nfc_worker->callback(NfcWorkerEventFoundKeyA, nfc_worker->context);
|
|
}
|
|
}
|
|
if(!mf_classic_is_key_found(data, i, MfClassicKeyB)) {
|
|
FURI_LOG_D(
|
|
TAG,
|
|
"Trying B key for sector %d, key: %04lx%08lx",
|
|
i,
|
|
(uint32_t)(key >> 32),
|
|
(uint32_t)key);
|
|
if(mf_classic_authenticate(tx_rx, block_num, key, MfClassicKeyB)) {
|
|
mf_classic_set_key_found(data, i, MfClassicKeyB, key);
|
|
FURI_LOG_D(TAG, "Key found");
|
|
nfc_worker->callback(NfcWorkerEventFoundKeyB, nfc_worker->context);
|
|
}
|
|
}
|
|
|
|
if(mf_classic_is_sector_read(data, i)) continue;
|
|
mf_classic_read_sector(tx_rx, data, i);
|
|
} else {
|
|
if(!card_removed_notified) {
|
|
nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
|
|
card_removed_notified = true;
|
|
card_found_notified = false;
|
|
}
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicDictAttack) break;
|
|
}
|
|
}
|
|
|
|
void nfc_worker_mf_classic_dict_attack(NfcWorker* nfc_worker) {
|
|
furi_assert(nfc_worker);
|
|
furi_assert(nfc_worker->callback);
|
|
|
|
MfClassicData* data = &nfc_worker->dev_data->mf_classic_data;
|
|
NfcMfClassicDictAttackData* dict_attack_data =
|
|
&nfc_worker->dev_data->mf_classic_dict_attack_data;
|
|
uint32_t total_sectors = mf_classic_get_total_sectors_num(data->type);
|
|
uint64_t key = 0;
|
|
uint64_t prev_key = 0;
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
bool card_found_notified = true;
|
|
bool card_removed_notified = false;
|
|
|
|
// Load dictionary
|
|
MfClassicDict* dict = dict_attack_data->dict;
|
|
if(!dict) {
|
|
FURI_LOG_E(TAG, "Dictionary not found");
|
|
nfc_worker->callback(NfcWorkerEventNoDictFound, nfc_worker->context);
|
|
return;
|
|
}
|
|
|
|
FURI_LOG_D(
|
|
TAG, "Start Dictionary attack, Key Count %lu", mf_classic_dict_get_total_keys(dict));
|
|
for(size_t i = 0; i < total_sectors; i++) {
|
|
FURI_LOG_I(TAG, "Sector %d", i);
|
|
nfc_worker->callback(NfcWorkerEventNewSector, nfc_worker->context);
|
|
uint8_t block_num = mf_classic_get_sector_trailer_block_num_by_sector(i);
|
|
if(mf_classic_is_sector_read(data, i)) continue;
|
|
bool is_key_a_found = mf_classic_is_key_found(data, i, MfClassicKeyA);
|
|
bool is_key_b_found = mf_classic_is_key_found(data, i, MfClassicKeyB);
|
|
uint16_t key_index = 0;
|
|
while(mf_classic_dict_get_next_key(dict, &key)) {
|
|
FURI_LOG_T(TAG, "Key %d", key_index);
|
|
if(++key_index % NFC_DICT_KEY_BATCH_SIZE == 0) {
|
|
nfc_worker->callback(NfcWorkerEventNewDictKeyBatch, nfc_worker->context);
|
|
}
|
|
furi_hal_nfc_sleep();
|
|
if(furi_hal_nfc_activate_nfca(200, NULL)) {
|
|
furi_hal_nfc_sleep();
|
|
if(!card_found_notified) {
|
|
nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
|
|
card_found_notified = true;
|
|
card_removed_notified = false;
|
|
nfc_worker_mf_classic_key_attack(nfc_worker, prev_key, &tx_rx, i);
|
|
}
|
|
FURI_LOG_D(
|
|
TAG,
|
|
"Try to auth to sector %d with key %04lx%08lx",
|
|
i,
|
|
(uint32_t)(key >> 32),
|
|
(uint32_t)key);
|
|
if(!is_key_a_found) {
|
|
is_key_a_found = mf_classic_is_key_found(data, i, MfClassicKeyA);
|
|
if(mf_classic_authenticate(&tx_rx, block_num, key, MfClassicKeyA)) {
|
|
mf_classic_set_key_found(data, i, MfClassicKeyA, key);
|
|
FURI_LOG_D(TAG, "Key found");
|
|
nfc_worker->callback(NfcWorkerEventFoundKeyA, nfc_worker->context);
|
|
nfc_worker_mf_classic_key_attack(nfc_worker, key, &tx_rx, i + 1);
|
|
}
|
|
furi_hal_nfc_sleep();
|
|
}
|
|
if(!is_key_b_found) {
|
|
is_key_b_found = mf_classic_is_key_found(data, i, MfClassicKeyB);
|
|
if(mf_classic_authenticate(&tx_rx, block_num, key, MfClassicKeyB)) {
|
|
FURI_LOG_D(TAG, "Key found");
|
|
mf_classic_set_key_found(data, i, MfClassicKeyB, key);
|
|
nfc_worker->callback(NfcWorkerEventFoundKeyB, nfc_worker->context);
|
|
nfc_worker_mf_classic_key_attack(nfc_worker, key, &tx_rx, i + 1);
|
|
}
|
|
}
|
|
if(is_key_a_found && is_key_b_found) break;
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicDictAttack) break;
|
|
} else {
|
|
if(!card_removed_notified) {
|
|
nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
|
|
card_removed_notified = true;
|
|
card_found_notified = false;
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicDictAttack) break;
|
|
}
|
|
memcpy(&prev_key, &key, sizeof(key));
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicDictAttack) break;
|
|
mf_classic_read_sector(&tx_rx, data, i);
|
|
mf_classic_dict_rewind(dict);
|
|
}
|
|
if(nfc_worker->state == NfcWorkerStateMfClassicDictAttack) {
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
} else {
|
|
nfc_worker->callback(NfcWorkerEventAborted, nfc_worker->context);
|
|
}
|
|
}
|
|
|
|
void nfc_worker_emulate_mf_classic(NfcWorker* nfc_worker) {
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
|
|
MfClassicEmulator emulator = {
|
|
.cuid = nfc_util_bytes2num(&nfc_data->uid[nfc_data->uid_len - 4], 4),
|
|
.data = nfc_worker->dev_data->mf_classic_data,
|
|
.data_changed = false,
|
|
};
|
|
NfcaSignal* nfca_signal = nfca_signal_alloc();
|
|
tx_rx.nfca_signal = nfca_signal;
|
|
|
|
rfal_platform_spi_acquire();
|
|
|
|
furi_hal_nfc_listen_start(nfc_data);
|
|
while(nfc_worker->state == NfcWorkerStateMfClassicEmulate) { //-V1044
|
|
if(furi_hal_nfc_listen_rx(&tx_rx, 300)) {
|
|
mf_classic_emulator(&emulator, &tx_rx);
|
|
}
|
|
}
|
|
if(emulator.data_changed) {
|
|
nfc_worker->dev_data->mf_classic_data = emulator.data;
|
|
if(nfc_worker->callback) {
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
}
|
|
emulator.data_changed = false;
|
|
}
|
|
|
|
nfca_signal_free(nfca_signal);
|
|
|
|
rfal_platform_spi_release();
|
|
}
|
|
|
|
void nfc_worker_write_mf_classic(NfcWorker* nfc_worker) {
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
bool card_found_notified = false;
|
|
FuriHalNfcDevData nfc_data = {};
|
|
MfClassicData* src_data = &nfc_worker->dev_data->mf_classic_data;
|
|
MfClassicData dest_data = *src_data;
|
|
|
|
while(nfc_worker->state == NfcWorkerStateMfClassicWrite) {
|
|
if(furi_hal_nfc_detect(&nfc_data, 200)) {
|
|
if(!card_found_notified) {
|
|
nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
|
|
card_found_notified = true;
|
|
}
|
|
furi_hal_nfc_sleep();
|
|
|
|
FURI_LOG_I(TAG, "Check low level nfc data");
|
|
if(memcmp(&nfc_data, &nfc_worker->dev_data->nfc_data, sizeof(FuriHalNfcDevData)) !=
|
|
0) {
|
|
FURI_LOG_E(TAG, "Wrong card");
|
|
nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
|
|
break;
|
|
}
|
|
|
|
FURI_LOG_I(TAG, "Check mf classic type");
|
|
MfClassicType type =
|
|
mf_classic_get_classic_type(nfc_data.atqa[0], nfc_data.atqa[1], nfc_data.sak);
|
|
if(type != nfc_worker->dev_data->mf_classic_data.type) {
|
|
FURI_LOG_E(TAG, "Wrong mf classic type");
|
|
nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
|
|
break;
|
|
}
|
|
|
|
// Set blocks not read
|
|
mf_classic_set_sector_data_not_read(&dest_data);
|
|
FURI_LOG_I(TAG, "Updating card sectors");
|
|
uint8_t total_sectors = mf_classic_get_total_sectors_num(type);
|
|
bool write_success = true;
|
|
for(uint8_t i = 0; i < total_sectors; i++) {
|
|
FURI_LOG_I(TAG, "Reading sector %d", i);
|
|
mf_classic_read_sector(&tx_rx, &dest_data, i);
|
|
bool old_data_read = mf_classic_is_sector_data_read(src_data, i);
|
|
bool new_data_read = mf_classic_is_sector_data_read(&dest_data, i);
|
|
if(old_data_read != new_data_read) {
|
|
FURI_LOG_E(TAG, "Failed to update sector %d", i);
|
|
write_success = false;
|
|
break;
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicWrite) break;
|
|
if(!mf_classic_write_sector(&tx_rx, &dest_data, src_data, i)) {
|
|
FURI_LOG_E(TAG, "Failed to write %d sector", i);
|
|
write_success = false;
|
|
break;
|
|
}
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicWrite) break;
|
|
if(write_success) {
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
break;
|
|
} else {
|
|
nfc_worker->callback(NfcWorkerEventFail, nfc_worker->context);
|
|
break;
|
|
}
|
|
|
|
} else {
|
|
if(card_found_notified) {
|
|
nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
|
|
card_found_notified = false;
|
|
}
|
|
}
|
|
furi_delay_ms(300);
|
|
}
|
|
}
|
|
|
|
void nfc_worker_update_mf_classic(NfcWorker* nfc_worker) {
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
bool card_found_notified = false;
|
|
FuriHalNfcDevData nfc_data = {};
|
|
MfClassicData* old_data = &nfc_worker->dev_data->mf_classic_data;
|
|
MfClassicData new_data = *old_data;
|
|
|
|
while(nfc_worker->state == NfcWorkerStateMfClassicUpdate) {
|
|
if(furi_hal_nfc_detect(&nfc_data, 200)) {
|
|
if(!card_found_notified) {
|
|
nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
|
|
card_found_notified = true;
|
|
}
|
|
furi_hal_nfc_sleep();
|
|
|
|
FURI_LOG_I(TAG, "Check low level nfc data");
|
|
if(memcmp(&nfc_data, &nfc_worker->dev_data->nfc_data, sizeof(FuriHalNfcDevData)) !=
|
|
0) {
|
|
FURI_LOG_E(TAG, "Low level nfc data mismatch");
|
|
nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
|
|
break;
|
|
}
|
|
|
|
FURI_LOG_I(TAG, "Check MF classic type");
|
|
MfClassicType type =
|
|
mf_classic_get_classic_type(nfc_data.atqa[0], nfc_data.atqa[1], nfc_data.sak);
|
|
if(type != nfc_worker->dev_data->mf_classic_data.type) {
|
|
FURI_LOG_E(TAG, "MF classic type mismatch");
|
|
nfc_worker->callback(NfcWorkerEventWrongCard, nfc_worker->context);
|
|
break;
|
|
}
|
|
|
|
// Set blocks not read
|
|
mf_classic_set_sector_data_not_read(&new_data);
|
|
FURI_LOG_I(TAG, "Updating card sectors");
|
|
uint8_t total_sectors = mf_classic_get_total_sectors_num(type);
|
|
bool update_success = true;
|
|
for(uint8_t i = 0; i < total_sectors; i++) {
|
|
FURI_LOG_I(TAG, "Reading sector %d", i);
|
|
mf_classic_read_sector(&tx_rx, &new_data, i);
|
|
bool old_data_read = mf_classic_is_sector_data_read(old_data, i);
|
|
bool new_data_read = mf_classic_is_sector_data_read(&new_data, i);
|
|
if(old_data_read != new_data_read) {
|
|
FURI_LOG_E(TAG, "Failed to update sector %d", i);
|
|
update_success = false;
|
|
break;
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicUpdate) break;
|
|
}
|
|
if(nfc_worker->state != NfcWorkerStateMfClassicUpdate) break;
|
|
|
|
// Check updated data
|
|
if(update_success) {
|
|
*old_data = new_data;
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
break;
|
|
}
|
|
} else {
|
|
if(card_found_notified) {
|
|
nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
|
|
card_found_notified = false;
|
|
}
|
|
}
|
|
furi_delay_ms(300);
|
|
}
|
|
}
|
|
|
|
void nfc_worker_mf_ultralight_read_auth(NfcWorker* nfc_worker) {
|
|
furi_assert(nfc_worker);
|
|
furi_assert(nfc_worker->callback);
|
|
|
|
MfUltralightData* data = &nfc_worker->dev_data->mf_ul_data;
|
|
FuriHalNfcDevData* nfc_data = &nfc_worker->dev_data->nfc_data;
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
MfUltralightReader reader = {};
|
|
mf_ul_reset(data);
|
|
|
|
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
|
|
reader_analyzer_prepare_tx_rx(nfc_worker->reader_analyzer, &tx_rx, true);
|
|
reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeDebugLog);
|
|
}
|
|
|
|
uint32_t key = 0;
|
|
uint16_t pack = 0;
|
|
while(nfc_worker->state == NfcWorkerStateReadMfUltralightReadAuth) {
|
|
furi_hal_nfc_sleep();
|
|
if(furi_hal_nfc_detect(nfc_data, 300) && nfc_data->type == FuriHalNfcTypeA) {
|
|
if(mf_ul_check_card_type(nfc_data->atqa[0], nfc_data->atqa[1], nfc_data->sak)) {
|
|
nfc_worker->callback(NfcWorkerEventCardDetected, nfc_worker->context);
|
|
if(data->auth_method == MfUltralightAuthMethodManual ||
|
|
data->auth_method == MfUltralightAuthMethodAuto) {
|
|
nfc_worker->callback(NfcWorkerEventMfUltralightPassKey, nfc_worker->context);
|
|
key = nfc_util_bytes2num(data->auth_key, 4);
|
|
} else if(data->auth_method == MfUltralightAuthMethodAmeebo) {
|
|
key = mf_ul_pwdgen_amiibo(nfc_data);
|
|
} else if(data->auth_method == MfUltralightAuthMethodXiaomi) {
|
|
key = mf_ul_pwdgen_xiaomi(nfc_data);
|
|
} else {
|
|
FURI_LOG_E(TAG, "Incorrect auth method");
|
|
break;
|
|
}
|
|
|
|
data->auth_success = mf_ultralight_authenticate(&tx_rx, key, &pack);
|
|
|
|
if(!data->auth_success) {
|
|
// Reset card
|
|
furi_hal_nfc_sleep();
|
|
if(!furi_hal_nfc_activate_nfca(300, NULL)) {
|
|
nfc_worker->callback(NfcWorkerEventFail, nfc_worker->context);
|
|
break;
|
|
}
|
|
}
|
|
|
|
mf_ul_read_card(&tx_rx, &reader, data);
|
|
if(data->auth_success) {
|
|
MfUltralightConfigPages* config_pages = mf_ultralight_get_config_pages(data);
|
|
if(config_pages != NULL) {
|
|
config_pages->auth_data.pwd.value = REVERSE_BYTES_U32(key);
|
|
config_pages->auth_data.pack.value = pack;
|
|
}
|
|
nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
|
|
break;
|
|
} else {
|
|
nfc_worker->callback(NfcWorkerEventFail, nfc_worker->context);
|
|
break;
|
|
}
|
|
} else {
|
|
nfc_worker->callback(NfcWorkerEventWrongCardDetected, nfc_worker->context);
|
|
furi_delay_ms(10);
|
|
}
|
|
} else {
|
|
nfc_worker->callback(NfcWorkerEventNoCardDetected, nfc_worker->context);
|
|
furi_delay_ms(10);
|
|
}
|
|
}
|
|
|
|
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
|
|
reader_analyzer_stop(nfc_worker->reader_analyzer);
|
|
}
|
|
}
|
|
|
|
static void nfc_worker_reader_analyzer_callback(ReaderAnalyzerEvent event, void* context) {
|
|
furi_assert(context);
|
|
NfcWorker* nfc_worker = context;
|
|
|
|
if((nfc_worker->state == NfcWorkerStateAnalyzeReader) &&
|
|
(event == ReaderAnalyzerEventMfkeyCollected)) {
|
|
if(nfc_worker->callback) {
|
|
nfc_worker->callback(NfcWorkerEventDetectReaderMfkeyCollected, nfc_worker->context);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nfc_worker_analyze_reader(NfcWorker* nfc_worker) {
|
|
furi_assert(nfc_worker);
|
|
furi_assert(nfc_worker->callback);
|
|
|
|
FuriHalNfcTxRxContext tx_rx = {};
|
|
|
|
ReaderAnalyzer* reader_analyzer = nfc_worker->reader_analyzer;
|
|
FuriHalNfcDevData* nfc_data = NULL;
|
|
if(nfc_worker->dev_data->protocol == NfcDeviceProtocolMifareClassic) {
|
|
nfc_data = &nfc_worker->dev_data->nfc_data;
|
|
reader_analyzer_set_nfc_data(reader_analyzer, nfc_data);
|
|
} else {
|
|
nfc_data = reader_analyzer_get_nfc_data(reader_analyzer);
|
|
}
|
|
MfClassicEmulator emulator = {
|
|
.cuid = nfc_util_bytes2num(&nfc_data->uid[nfc_data->uid_len - 4], 4),
|
|
.data = nfc_worker->dev_data->mf_classic_data,
|
|
.data_changed = false,
|
|
};
|
|
NfcaSignal* nfca_signal = nfca_signal_alloc();
|
|
tx_rx.nfca_signal = nfca_signal;
|
|
reader_analyzer_prepare_tx_rx(reader_analyzer, &tx_rx, true);
|
|
reader_analyzer_start(nfc_worker->reader_analyzer, ReaderAnalyzerModeMfkey);
|
|
reader_analyzer_set_callback(reader_analyzer, nfc_worker_reader_analyzer_callback, nfc_worker);
|
|
|
|
rfal_platform_spi_acquire();
|
|
|
|
FURI_LOG_D(TAG, "Start reader analyzer");
|
|
|
|
uint8_t reader_no_data_received_cnt = 0;
|
|
bool reader_no_data_notified = true;
|
|
|
|
while(nfc_worker->state == NfcWorkerStateAnalyzeReader) {
|
|
furi_hal_nfc_stop_cmd();
|
|
furi_delay_ms(5);
|
|
furi_hal_nfc_listen_start(nfc_data);
|
|
if(furi_hal_nfc_listen_rx(&tx_rx, 300)) {
|
|
if(reader_no_data_notified) {
|
|
nfc_worker->callback(NfcWorkerEventDetectReaderDetected, nfc_worker->context);
|
|
}
|
|
reader_no_data_received_cnt = 0;
|
|
reader_no_data_notified = false;
|
|
NfcProtocol protocol =
|
|
reader_analyzer_guess_protocol(reader_analyzer, tx_rx.rx_data, tx_rx.rx_bits / 8);
|
|
if(protocol == NfcDeviceProtocolMifareClassic) {
|
|
mf_classic_emulator(&emulator, &tx_rx);
|
|
}
|
|
} else {
|
|
reader_no_data_received_cnt++;
|
|
if(!reader_no_data_notified && (reader_no_data_received_cnt > 5)) {
|
|
nfc_worker->callback(NfcWorkerEventDetectReaderLost, nfc_worker->context);
|
|
reader_no_data_received_cnt = 0;
|
|
reader_no_data_notified = true;
|
|
}
|
|
FURI_LOG_D(TAG, "No data from reader");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
rfal_platform_spi_release();
|
|
|
|
reader_analyzer_stop(nfc_worker->reader_analyzer);
|
|
|
|
nfca_signal_free(nfca_signal);
|
|
}
|