581 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			581 lines
		
	
	
		
			22 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();
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    furi_thread_set_name(nfc_worker->thread, "NfcWorker");
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    furi_thread_set_stack_size(nfc_worker->thread, 8192);
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    furi_thread_set_callback(nfc_worker->thread, nfc_worker_task);
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    furi_thread_set_context(nfc_worker->thread, 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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    if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug)) {
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        nfc_worker->debug_pcap_worker = nfc_debug_pcap_alloc(nfc_worker->storage);
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    }
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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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    if(nfc_worker->debug_pcap_worker) nfc_debug_pcap_free(nfc_worker->debug_pcap_worker);
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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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    if(nfc_worker->state == NfcWorkerStateBroken || nfc_worker->state == NfcWorkerStateReady) {
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        return;
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    }
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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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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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        nfc_worker_read(nfc_worker);
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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 == 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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    }
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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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    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, tx_rx, false);
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    do {
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        // Read card
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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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    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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    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, tx_rx, false);
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    do {
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        // Try to read supported card
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        FURI_LOG_I(TAG, "Try read 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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                    }
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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 = (sectors_read == sectors_total);
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        }
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    } while(false);
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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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    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, tx_rx, false);
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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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    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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    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, tx_rx, false);
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    do {
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        // Read card
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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)) break;
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        // Copy data
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        // TODO Set EmvData to reader or like in mifare ultralight!
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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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        result->aid_len = emv_app.aid_len;
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        memcpy(result->aid, emv_app.aid, result->aid_len);
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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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        read_success = true;
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    } while(false);
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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_emulate_uid(NfcWorker* nfc_worker) {
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    FuriHalNfcTxRxContext tx_rx = {};
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    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, &tx_rx, true);
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    FuriHalNfcDevData* data = &nfc_worker->dev_data->nfc_data;
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    NfcReaderRequestData* reader_data = &nfc_worker->dev_data->reader_data;
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    // TODO add support for RATS
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    // Now remove bit 6 in SAK to support ISO-14443A-3 emulation
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    // Need to save ATS to support ISO-14443A-4 emulation
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    uint8_t sak = data->sak;
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    FURI_BIT_CLEAR(sak, 5);
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    while(nfc_worker->state == NfcWorkerStateUidEmulate) {
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        if(furi_hal_nfc_listen(data->uid, data->uid_len, data->atqa, sak, true, 100)) {
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            if(furi_hal_nfc_tx_rx(&tx_rx, 100)) {
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                reader_data->size = tx_rx.rx_bits / 8;
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                if(reader_data->size > 0) {
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                    memcpy(reader_data->data, tx_rx.rx_data, reader_data->size);
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                    if(nfc_worker->callback) {
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                        nfc_worker->callback(NfcWorkerEventSuccess, nfc_worker->context);
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                    }
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                }
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            } else {
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                FURI_LOG_E(TAG, "Failed to get reader commands");
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            }
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        }
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    }
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}
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void nfc_worker_emulate_apdu(NfcWorker* nfc_worker) {
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    FuriHalNfcTxRxContext tx_rx = {};
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    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, &tx_rx, true);
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    FuriHalNfcDevData params = {
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        .uid = {0xCF, 0x72, 0xd4, 0x40},
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        .uid_len = 4,
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        .atqa = {0x00, 0x04},
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        .sak = 0x20,
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        .type = FuriHalNfcTypeA,
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    };
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    while(nfc_worker->state == NfcWorkerStateEmulateApdu) {
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        if(furi_hal_nfc_listen(params.uid, params.uid_len, params.atqa, params.sak, false, 300)) {
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            FURI_LOG_D(TAG, "POS terminal detected");
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            if(emv_card_emulation(&tx_rx)) {
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                FURI_LOG_D(TAG, "EMV card emulated");
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            }
 | 
						|
        } else {
 | 
						|
            FURI_LOG_D(TAG, "Can't find reader");
 | 
						|
        }
 | 
						|
        furi_hal_nfc_sleep();
 | 
						|
        furi_delay_ms(20);
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
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);
 | 
						|
    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;
 | 
						|
        }
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
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;
 | 
						|
    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 %d", 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)) {
 | 
						|
            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;
 | 
						|
                }
 | 
						|
                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);
 | 
						|
                        nfc_worker->callback(NfcWorkerEventFoundKeyA, nfc_worker->context);
 | 
						|
                    }
 | 
						|
                    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)) {
 | 
						|
                        mf_classic_set_key_found(data, i, MfClassicKeyB, key);
 | 
						|
                        nfc_worker->callback(NfcWorkerEventFoundKeyB, nfc_worker->context);
 | 
						|
                    }
 | 
						|
                }
 | 
						|
                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;
 | 
						|
            }
 | 
						|
        }
 | 
						|
        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 = {};
 | 
						|
    nfc_debug_pcap_prepare_tx_rx(nfc_worker->debug_pcap_worker, &tx_rx, true);
 | 
						|
    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) {
 | 
						|
        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_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);
 | 
						|
 | 
						|
    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) {
 | 
						|
                    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);
 | 
						|
        }
 | 
						|
    }
 | 
						|
}
 |