Display Mifare Classic data in NFC app (#2389)
* Add data display for Mifare Classic cards. * Clean up log statements and data display. Co-authored-by: あく <alleteam@gmail.com>
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106
applications/main/nfc/scenes/nfc_scene_mf_classic_data.c
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106
applications/main/nfc/scenes/nfc_scene_mf_classic_data.c
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#include "../nfc_i.h"
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void nfc_scene_mf_classic_data_on_enter(void* context) {
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Nfc* nfc = context;
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MfClassicType type = nfc->dev->dev_data.mf_classic_data.type;
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MfClassicData* data = &nfc->dev->dev_data.mf_classic_data;
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TextBox* text_box = nfc->text_box;
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text_box_set_font(text_box, TextBoxFontHex);
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int card_blocks = 0;
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if(type == MfClassicType1k) {
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card_blocks = MF_CLASSIC_1K_TOTAL_SECTORS_NUM * 4;
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} else if(type == MfClassicType4k) {
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// 16 sectors of 4 blocks each plus 8 sectors of 16 blocks each
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card_blocks = MF_CLASSIC_1K_TOTAL_SECTORS_NUM * 4 + 8 * 16;
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} else if(type == MfClassicTypeMini) {
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card_blocks = MF_MINI_TOTAL_SECTORS_NUM * 4;
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}
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int bytes_written = 0;
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for(int block_num = 0; block_num < card_blocks; block_num++) {
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bool is_sec_trailer = mf_classic_is_sector_trailer(block_num);
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if(is_sec_trailer) {
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uint8_t sector_num = mf_classic_get_sector_by_block(block_num);
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MfClassicSectorTrailer* sec_tr =
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mf_classic_get_sector_trailer_by_sector(data, sector_num);
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// Key A
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for(size_t i = 0; i < sizeof(sec_tr->key_a); i += 2) {
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if((bytes_written % 8 == 0) && (bytes_written != 0)) {
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furi_string_push_back(nfc->text_box_store, '\n');
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}
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if(mf_classic_is_key_found(data, sector_num, MfClassicKeyA)) {
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furi_string_cat_printf(
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nfc->text_box_store, "%02X%02X ", sec_tr->key_a[i], sec_tr->key_a[i + 1]);
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} else {
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furi_string_cat_printf(nfc->text_box_store, "???? ");
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}
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bytes_written += 2;
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}
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// Access bytes
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for(size_t i = 0; i < MF_CLASSIC_ACCESS_BYTES_SIZE; i += 2) {
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if((bytes_written % 8 == 0) && (bytes_written != 0)) {
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furi_string_push_back(nfc->text_box_store, '\n');
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}
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if(mf_classic_is_block_read(data, block_num)) {
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furi_string_cat_printf(
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nfc->text_box_store,
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"%02X%02X ",
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sec_tr->access_bits[i],
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sec_tr->access_bits[i + 1]);
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} else {
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furi_string_cat_printf(nfc->text_box_store, "???? ");
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}
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bytes_written += 2;
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}
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// Key B
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for(size_t i = 0; i < sizeof(sec_tr->key_b); i += 2) {
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if((bytes_written % 8 == 0) && (bytes_written != 0)) {
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furi_string_push_back(nfc->text_box_store, '\n');
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}
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if(mf_classic_is_key_found(data, sector_num, MfClassicKeyB)) {
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furi_string_cat_printf(
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nfc->text_box_store, "%02X%02X ", sec_tr->key_b[i], sec_tr->key_b[i + 1]);
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} else {
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furi_string_cat_printf(nfc->text_box_store, "???? ");
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}
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bytes_written += 2;
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}
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} else {
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// Write data block
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for(size_t i = 0; i < MF_CLASSIC_BLOCK_SIZE; i += 2) {
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if((bytes_written % 8 == 0) && (bytes_written != 0)) {
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furi_string_push_back(nfc->text_box_store, '\n');
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}
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if(mf_classic_is_block_read(data, block_num)) {
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furi_string_cat_printf(
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nfc->text_box_store,
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"%02X%02X ",
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data->block[block_num].value[i],
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data->block[block_num].value[i + 1]);
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} else {
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furi_string_cat_printf(nfc->text_box_store, "???? ");
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}
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bytes_written += 2;
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}
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}
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}
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text_box_set_text(text_box, furi_string_get_cstr(nfc->text_box_store));
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view_dispatcher_switch_to_view(nfc->view_dispatcher, NfcViewTextBox);
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}
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bool nfc_scene_mf_classic_data_on_event(void* context, SceneManagerEvent event) {
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UNUSED(context);
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UNUSED(event);
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return false;
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}
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void nfc_scene_mf_classic_data_on_exit(void* context) {
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Nfc* nfc = context;
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// Clean view
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text_box_reset(nfc->text_box);
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furi_string_reset(nfc->text_box_store);
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}
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