602c125ef5
* nfc: add save name and save success scenes * applications: increase nfc app stack size to 4k * nfc: move nfc device data to separate file * nfc: add nfc device save to SD card * nfc: add file select scene * nfc: add saved key menu scene * nfc: add manual SAK, ATQA, UID enter * nfc: add manual enter * nfc scenes: remove typedef in SubmenuIndex enu * nfc_device: close file_worker after load data Co-authored-by: あく <alleteam@gmail.com>
124 lines
3.4 KiB
C
Executable File
124 lines
3.4 KiB
C
Executable File
#include "nfc_device.h"
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#include <file-worker.h>
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#define NFC_DEVICE_MAX_DATA_LEN 14
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static const char* nfc_app_folder = "nfc";
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static const char* nfc_app_extension = ".nfc";
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void nfc_device_set_name(NfcDevice* dev, const char* name) {
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furi_assert(dev);
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strlcpy(dev->dev_name, name, NFC_DEV_NAME_MAX_LEN);
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}
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bool nfc_device_save(NfcDevice* dev, const char* dev_name) {
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furi_assert(dev);
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FileWorker* file_worker = file_worker_alloc(false);
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string_t dev_file_name;
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// Create nfc directory if necessary
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if(!file_worker_mkdir(file_worker, nfc_app_folder)) {
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return false;
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};
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// First remove nfc device file if it was saved
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string_init_printf(dev_file_name, "%s/%s%s", nfc_app_folder, dev->dev_name, nfc_app_extension);
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if(!file_worker_remove(file_worker, string_get_cstr(dev_file_name))) {
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string_clear(dev_file_name);
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return false;
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};
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// Prepare buffer to write
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uint8_t buff[NFC_DEVICE_MAX_DATA_LEN];
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buff[0] = dev->data.uid_len;
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memcpy(&buff[1], dev->data.uid, dev->data.uid_len);
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memcpy(&buff[dev->data.uid_len + 1], dev->data.atqa, 2);
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buff[dev->data.uid_len + 3] = dev->data.sak;
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// Save nfc device
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bool res = file_worker_open(
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file_worker, string_get_cstr(dev_file_name), FSAM_WRITE, FSOM_CREATE_ALWAYS);
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string_clear(dev_file_name);
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if(res) {
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// Write UID length
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if(!file_worker_write_hex(file_worker, buff, dev->data.uid_len + 4)) {
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file_worker_close(file_worker);
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return false;
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}
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}
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file_worker_close(file_worker);
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file_worker_free(file_worker);
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return true;
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}
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static bool nfc_device_load_data(FileWorker* file_worker, string_t path, NfcDevice* dev) {
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// Open key file
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if(!file_worker_open(file_worker, string_get_cstr(path), FSAM_READ, FSOM_OPEN_EXISTING)) {
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return false;
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}
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uint8_t buff[NFC_DEVICE_MAX_DATA_LEN] = {};
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// Load first byte - UID length
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if(!file_worker_read_hex(file_worker, buff, 1)) {
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return false;
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}
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// Read space
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uint8_t space = 0;
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if(!file_worker_read(file_worker, &space, 1)) {
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return false;
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}
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// // Load other data
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if(!file_worker_read_hex(file_worker, &buff[1], buff[0] + 3)) {
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return false;
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}
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// Set loaded data
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dev->data.uid_len = buff[0];
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memcpy(dev->data.uid, &buff[1], dev->data.uid_len);
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memcpy(dev->data.atqa, &buff[dev->data.uid_len + 1], 2);
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dev->data.sak = buff[dev->data.uid_len + 3];
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return true;
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}
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bool nfc_device_load(NfcDevice* dev, const char* dev_name) {
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furi_assert(dev);
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return true;
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}
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bool nfc_file_select(NfcDevice* dev) {
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furi_assert(dev);
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FileWorker* file_worker = file_worker_alloc(false);
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// Input events and views are managed by file_select
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bool res = file_worker_file_select(
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file_worker,
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nfc_app_folder,
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nfc_app_extension,
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dev->file_name,
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sizeof(dev->file_name),
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NULL);
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if(res) {
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string_t dev_str;
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// Get key file path
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string_init_printf(dev_str, "%s/%s%s", nfc_app_folder, dev->file_name, nfc_app_extension);
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res = nfc_device_load_data(file_worker, dev_str, dev);
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if(res) {
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nfc_device_set_name(dev, dev->file_name);
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}
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string_clear(dev_str);
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}
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file_worker_close(file_worker);
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file_worker_free(file_worker);
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return res;
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}
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