// Methods for RFID transmission // lfrid #include #include #include #include #include #include #include "action_i.h" #include "quac.h" #define RFID_FILE_TYPE "Flipper RFID key" #define RFID_FILE_VERSION 1 // lifted from flipperzero-firmware/applications/main/lfrfid/lfrfid_cli.c void action_rfid_tx(void* context, const FuriString* action_path, FuriString* error) { UNUSED(error); App* app = context; const char* file_name = furi_string_get_cstr(action_path); FlipperFormat* fff_data_file = flipper_format_file_alloc(app->storage); FuriString* temp_str; temp_str = furi_string_alloc(); uint32_t temp_data32; ProtocolDict* dict = protocol_dict_alloc(lfrfid_protocols, LFRFIDProtocolMax); ProtocolId protocol; size_t data_size = protocol_dict_get_max_data_size(dict); uint8_t* data = malloc(data_size); // FURI_LOG_I(TAG, "Max dict data size is %d", data_size); bool successful_read = false; do { if(!flipper_format_file_open_existing(fff_data_file, file_name)) { ACTION_SET_ERROR("RFID: Error opening %s", file_name); break; } if(!flipper_format_read_header(fff_data_file, temp_str, &temp_data32)) { ACTION_SET_ERROR("RFID: Missing or incorrect header"); break; } if(!strcmp(furi_string_get_cstr(temp_str), RFID_FILE_TYPE) && temp_data32 == RFID_FILE_VERSION) { } else { ACTION_SET_ERROR("RFID: Type or version mismatch"); break; } // read and check the protocol field if(!flipper_format_read_string(fff_data_file, "Key type", temp_str)) { ACTION_SET_ERROR("RFID: Error reading protocol"); break; } protocol = protocol_dict_get_protocol_by_name(dict, furi_string_get_cstr(temp_str)); if(protocol == PROTOCOL_NO) { ACTION_SET_ERROR("RFID: Unknown protocol: %s", furi_string_get_cstr(temp_str)); break; } // read and check data field size_t required_size = protocol_dict_get_data_size(dict, protocol); // FURI_LOG_I(TAG, "Protocol req data size is %d", required_size); if(!flipper_format_read_hex(fff_data_file, "Data", data, required_size)) { FURI_LOG_E(TAG, "RFID: Error reading data"); ACTION_SET_ERROR("RFID: Error reading data"); break; } // FURI_LOG_I(TAG, "Data: %s", furi_string_get_cstr(data_text)); // if(data_size != required_size) { // FURI_LOG_E( // TAG, // "%s data needs to be %zu bytes long", // protocol_dict_get_name(dict, protocol), // required_size); // break; // } protocol_dict_set_data(dict, protocol, data, data_size); successful_read = true; // FURI_LOG_I(TAG, "protocol dict setup complete!"); } while(false); if(successful_read) { LFRFIDWorker* worker = lfrfid_worker_alloc(dict); lfrfid_worker_start_thread(worker); lfrfid_worker_emulate_start(worker, protocol); int16_t time_ms = app->settings.rfid_duration; FURI_LOG_I(TAG, "RFID: Emulating (%s) for %d ms", file_name, time_ms); int16_t interval_ms = 100; while(time_ms > 0) { furi_delay_ms(interval_ms); time_ms -= interval_ms; } FURI_LOG_I(TAG, "RFID: Emulation stopped"); lfrfid_worker_stop(worker); lfrfid_worker_stop_thread(worker); lfrfid_worker_free(worker); } furi_string_free(temp_str); free(data); protocol_dict_free(dict); flipper_format_free(fff_data_file); }