[FL-1547], [FL-1500] NFC app v1 (#593)
* nfc: remove mifare read debug view and scene * nfc: change mifare ultralight data structure * mifare_ultralight: add more commands * nfc: add emulate mifare ul scene * nfc: rework data structures, remove debug scenes and views * nfc: add read emv scenes * nfc: mifare emulation wip * nfc cli: increase detecting time * nfc: save nfc files with new format * nfc: store Mifare Ultralight * nfc: start loading mifare ultralight * nfc: add delete scenes * nfc: add edit UID and name * nfc: finish parsing uid and mifare ul data * nfc: delete success fix * gui_widget: introduce GuiWidget * gui_widget: add string element * gui_widget: add button element * gui_widget: move free elements into gui_widget * nfc: rework info scene with GuiWidget * nfc: rework device info scene * nfc: rework delete scene gui * nfc: add compatible script support * nfc: rework emv reading scenes * nfc: rework bank card save * nfc: add bank card custom view * gui_widget: add icon element * nfc: add icon to bank card * nfc: start worker after switching view Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
gornekich
GitHub
@@ -1,13 +1,246 @@
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#include "nfc_device.h"
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#include "nfc_device_i.h"
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#include <file-worker.h>
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#include <path.h>
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#include <hex.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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static bool nfc_device_read_hex(string_t str, uint8_t* buff, uint16_t len) {
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string_strim(str);
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uint8_t nibble_high = 0;
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uint8_t nibble_low = 0;
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bool parsed = true;
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for(uint16_t i = 0; i < len; i++) {
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if(hex_char_to_hex_nibble(string_get_char(str, 0), &nibble_high) &&
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hex_char_to_hex_nibble(string_get_char(str, 1), &nibble_low)) {
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buff[i] = (nibble_high << 4) | nibble_low;
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string_right(str, 3);
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} else {
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parsed = false;
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break;
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}
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}
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return parsed;
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}
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uint16_t nfc_device_prepare_format_string(NfcDevice* dev, string_t format_string) {
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if(dev->format == NfcDeviceSaveFormatUid) {
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string_set_str(format_string, "UID\n");
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} else if(dev->format == NfcDeviceSaveFormatBankCard) {
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string_set_str(format_string, "Bank card\n");
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} else if(dev->format == NfcDeviceSaveFormatMifareUl) {
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string_set_str(format_string, "Mifare Ultralight\n");
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} else {
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string_set_str(format_string, "Unknown\n");
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}
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return string_size(format_string);
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}
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bool nfc_device_parse_format_string(NfcDevice* dev, string_t format_string) {
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if(string_start_with_str_p(format_string, "UID")) {
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dev->format = NfcDeviceSaveFormatUid;
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dev->dev_data.nfc_data.protocol = NfcDeviceProtocolUnknown;
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return true;
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} else if(string_start_with_str_p(format_string, "Bank card")) {
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dev->format = NfcDeviceSaveFormatBankCard;
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dev->dev_data.nfc_data.protocol = NfcDeviceProtocolEMV;
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return true;
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} else if(string_start_with_str_p(format_string, "Mifare Ultralight")) {
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dev->format = NfcDeviceSaveFormatMifareUl;
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dev->dev_data.nfc_data.protocol = NfcDeviceProtocolMifareUl;
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return true;
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}
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return false;
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}
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uint16_t nfc_device_prepare_uid_string(NfcDevice* dev, string_t uid_string) {
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NfcDeviceCommomData* uid_data = &dev->dev_data.nfc_data;
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string_printf(uid_string, "UID len: %02X UID: ", dev->dev_data.nfc_data.uid_len);
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for(uint8_t i = 0; i < uid_data->uid_len; i++) {
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string_cat_printf(uid_string, "%02X ", uid_data->uid[i]);
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}
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string_cat_printf(
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uid_string,
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"ATQA: %02X %02X SAK: %02X\n",
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uid_data->atqa[0],
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uid_data->atqa[1],
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uid_data->sak);
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return string_size(uid_string);
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}
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bool nfc_device_parse_uid_string(NfcDevice* dev, string_t uid_string) {
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NfcDeviceCommomData* uid_data = &dev->dev_data.nfc_data;
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bool parsed = false;
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do {
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// strlen("UID len: ") = 9
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string_right(uid_string, 9);
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if(!nfc_device_read_hex(uid_string, &uid_data->uid_len, 1)) {
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break;
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}
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// strlen("UID: ") = 5
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string_right(uid_string, 5);
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if(!nfc_device_read_hex(uid_string, uid_data->uid, uid_data->uid_len)) {
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break;
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}
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// strlen("ATQA: ") = 6
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string_right(uid_string, 6);
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if(!nfc_device_read_hex(uid_string, uid_data->atqa, 2)) {
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break;
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}
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// strlen("SAK: ") = 5
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string_right(uid_string, 5);
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if(!nfc_device_read_hex(uid_string, &uid_data->sak, 1)) {
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break;
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}
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parsed = true;
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} while(0);
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return parsed;
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}
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uint16_t nfc_device_prepare_mifare_ul_string(NfcDevice* dev, string_t mifare_ul_string) {
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MifareUlData* data = &dev->dev_data.mf_ul_data;
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string_printf(mifare_ul_string, "Signature:");
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for(uint8_t i = 0; i < sizeof(data->signature); i++) {
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string_cat_printf(mifare_ul_string, " %02X", data->signature[i]);
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}
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string_cat_printf(mifare_ul_string, "\nVersion:");
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uint8_t* version = (uint8_t*)&data->version;
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for(uint8_t i = 0; i < sizeof(data->version); i++) {
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string_cat_printf(mifare_ul_string, " %02X", version[i]);
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}
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for(uint8_t i = 0; i < 3; i++) {
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string_cat_printf(
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mifare_ul_string,
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"\nCounter %d: %lu Tearing flag %d: %02X",
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i,
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data->counter[i],
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i,
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data->tearing[i]);
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}
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string_cat_printf(mifare_ul_string, "\nData size: %d\n", data->data_size);
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for(uint16_t i = 0; i < data->data_size; i += 4) {
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string_cat_printf(
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mifare_ul_string,
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"%02X %02X %02X %02X\n",
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data->data[i],
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data->data[i + 1],
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data->data[i + 2],
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data->data[i + 3]);
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}
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return string_size(mifare_ul_string);
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}
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bool nfc_device_parse_mifare_ul_string(NfcDevice* dev, string_t mifare_ul_string) {
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MifareUlData* data = &dev->dev_data.mf_ul_data;
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uint16_t tearing_tmp = 0;
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uint16_t cnt_num = 0;
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size_t ws = 0;
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int res = 0;
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bool parsed = false;
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do {
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// strlen("Signature: ") = 11
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string_right(mifare_ul_string, 11);
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if(!nfc_device_read_hex(mifare_ul_string, data->signature, sizeof(data->signature))) {
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break;
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}
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// strlen("Version: ") = 9
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string_right(mifare_ul_string, 9);
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if(!nfc_device_read_hex(
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mifare_ul_string, (uint8_t*)&data->version, sizeof(data->version))) {
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break;
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}
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string_strim(mifare_ul_string);
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// Read counters and tearing flags
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for(uint8_t i = 0; i < 3; i++) {
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res = sscanf(
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string_get_cstr(mifare_ul_string),
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"Counter %hX: %lu Tearing flag %hX: %02hX",
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&cnt_num,
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&data->counter[i],
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&cnt_num,
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&tearing_tmp);
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if(res != 4) {
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break;
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}
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data->tearing[i] = tearing_tmp;
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ws = string_search_char(mifare_ul_string, '\n');
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string_right(mifare_ul_string, ws + 1);
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}
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// Read data size
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res = sscanf(string_get_cstr(mifare_ul_string), "Data size: %hu", &data->data_size);
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if(res != 1) {
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break;
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}
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ws = string_search_char(mifare_ul_string, '\n');
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string_right(mifare_ul_string, ws + 1);
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// Read data
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for(uint16_t i = 0; i < data->data_size; i += 4) {
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if(!nfc_device_read_hex(mifare_ul_string, &data->data[i], 4)) {
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break;
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}
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}
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parsed = true;
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} while(0);
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return parsed;
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}
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uint16_t nfc_device_prepare_bank_card_string(NfcDevice* dev, string_t bank_card_string) {
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NfcEmvData* data = &dev->dev_data.emv_data;
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string_printf(bank_card_string, "AID len: %d, AID:", data->aid_len);
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for(uint8_t i = 0; i < data->aid_len; i++) {
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string_cat_printf(bank_card_string, " %02X", data->aid[i]);
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}
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string_cat_printf(bank_card_string, "\nName: %s\nNumber:", data->name);
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for(uint8_t i = 0; i < sizeof(data->number); i++) {
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string_cat_printf(bank_card_string, " %02X", data->number[i]);
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}
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return string_size(bank_card_string);
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}
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bool nfc_device_parse_bank_card_string(NfcDevice* dev, string_t bank_card_string) {
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NfcEmvData* data = &dev->dev_data.emv_data;
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bool parsed = false;
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int res = 0;
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memset(data, 0, sizeof(NfcEmvData));
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do {
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res = sscanf(string_get_cstr(bank_card_string), "AID len: %hu", &data->aid_len);
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if(res != 1) {
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break;
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}
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// strlen("AID len: ") = 9
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string_right(bank_card_string, 9);
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size_t ws = string_search_char(bank_card_string, ':');
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string_right(bank_card_string, ws + 1);
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if(!nfc_device_read_hex(bank_card_string, data->aid, data->aid_len)) {
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break;
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}
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res = sscanf(string_get_cstr(bank_card_string), "Name: %s\n", data->name);
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if(res != 1) {
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break;
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}
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ws = string_search_char(bank_card_string, '\n');
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string_right(bank_card_string, ws + 1);
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// strlen("Number: ") = 8
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string_right(bank_card_string, 8);
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if(!nfc_device_read_hex(bank_card_string, data->number, sizeof(data->number))) {
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break;
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}
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parsed = true;
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} while(0);
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return parsed;
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}
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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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@@ -19,37 +252,52 @@ bool nfc_device_save(NfcDevice* dev, const char* dev_name) {
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FileWorker* file_worker = file_worker_alloc(false);
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string_t dev_file_name;
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string_init(dev_file_name);
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string_t temp_str;
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string_init(temp_str);
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uint16_t string_len = 0;
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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_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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do {
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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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break;
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};
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// First remove nfc device file if it was saved
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string_printf(dev_file_name, "%s/%s%s", nfc_app_folder, 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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break;
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};
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// Open file
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if(!file_worker_open(
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file_worker, string_get_cstr(dev_file_name), FSAM_WRITE, FSOM_CREATE_ALWAYS)) {
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break;
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}
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}
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// Prepare and write format name on 1st line
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string_len = nfc_device_prepare_format_string(dev, temp_str);
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if(!file_worker_write(file_worker, string_get_cstr(temp_str), string_len)) {
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break;
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}
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// Prepare and write UID data on 2nd line
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string_len = nfc_device_prepare_uid_string(dev, temp_str);
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if(!file_worker_write(file_worker, string_get_cstr(temp_str), string_len)) {
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break;
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}
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// Save more data if necessary
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if(dev->format == NfcDeviceSaveFormatMifareUl) {
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string_len = nfc_device_prepare_mifare_ul_string(dev, temp_str);
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if(!file_worker_write(file_worker, string_get_cstr(temp_str), string_len)) {
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break;
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}
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} else if(dev->format == NfcDeviceSaveFormatBankCard) {
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string_len = nfc_device_prepare_bank_card_string(dev, temp_str);
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if(!file_worker_write(file_worker, string_get_cstr(temp_str), string_len)) {
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break;
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}
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}
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} while(0);
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string_clear(temp_str);
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string_clear(dev_file_name);
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file_worker_close(file_worker);
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file_worker_free(file_worker);
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@@ -57,34 +305,52 @@ bool nfc_device_save(NfcDevice* dev, const char* dev_name) {
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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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string_t temp_string;
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string_init(temp_string);
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bool parsed = false;
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uint8_t buff[NFC_DEVICE_MAX_DATA_LEN] = {};
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do {
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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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break;
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}
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// Read and parse format from 1st line
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if(!file_worker_read_until(file_worker, temp_string, '\n')) {
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break;
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}
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if(!nfc_device_parse_format_string(dev, temp_string)) {
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break;
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}
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// Read and parse UID data from 2nd line
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if(!file_worker_read_until(file_worker, temp_string, '\n')) {
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break;
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}
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if(!nfc_device_parse_uid_string(dev, temp_string)) {
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break;
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}
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// Parse other data
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if(dev->format == NfcDeviceSaveFormatMifareUl) {
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// Read until EOF
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if(!file_worker_read_until(file_worker, temp_string, 0x05)) {
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break;
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}
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if(!nfc_device_parse_mifare_ul_string(dev, temp_string)) {
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break;
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}
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} else if(dev->format == NfcDeviceSaveFormatBankCard) {
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// Read until EOF
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if(!file_worker_read_until(file_worker, temp_string, 0x05)) {
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break;
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}
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if(!nfc_device_parse_bank_card_string(dev, temp_string)) {
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break;
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}
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}
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parsed = true;
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} while(0);
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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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string_clear(temp_string);
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return parsed;
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}
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bool nfc_device_load(NfcDevice* dev, const char* file_path) {
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||||
@@ -137,3 +403,25 @@ bool nfc_file_select(NfcDevice* dev) {
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
void nfc_device_clear(NfcDevice* dev) {
|
||||
furi_assert(dev);
|
||||
|
||||
memset(&dev->dev_data, 0, sizeof(dev->dev_data));
|
||||
nfc_device_set_name(dev, "");
|
||||
dev->format = NfcDeviceSaveFormatUid;
|
||||
}
|
||||
|
||||
bool nfc_device_delete(NfcDevice* dev) {
|
||||
furi_assert(dev);
|
||||
|
||||
bool result = false;
|
||||
FileWorker* file_worker = file_worker_alloc(false);
|
||||
string_t file_path;
|
||||
string_init_printf(file_path, "%s/%s%s", nfc_app_folder, dev->dev_name, nfc_app_extension);
|
||||
result = file_worker_remove(file_worker, string_get_cstr(file_path));
|
||||
string_clear(file_path);
|
||||
file_worker_close(file_worker);
|
||||
file_worker_free(file_worker);
|
||||
return result;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user