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Merge remote-tracking branch 'OFW/dev' into dev

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MX 2024-10-16 19:46:06 +03:00
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9
applications/main/nfc/application.fam
View file

@ -281,6 +281,15 @@ App(
sources=["plugins/supported_cards/hworld.c"],
)
App(
appid="trt_parser",
apptype=FlipperAppType.PLUGIN,
entry_point="trt_plugin_ep",
targets=["f7"],
requires=["nfc"],
sources=["plugins/supported_cards/trt.c"],
)
App(
appid="nfc_cli",
targets=["f7"],

94
applications/main/nfc/plugins/supported_cards/trt.c Normal file
View file

@ -0,0 +1,94 @@
// Flipper Zero parser for for Tianjin Railway Transit (TRT)
// https://en.wikipedia.org/wiki/Tianjin_Metro
// Reverse engineering and parser development by @Torron (Github: @zinongli)
#include "nfc_supported_card_plugin.h"
#include <flipper_application.h>
#include <nfc/protocols/mf_ultralight/mf_ultralight.h>
#include <bit_lib.h>
#define TAG "TrtParser"
#define LATEST_SALE_MARKER 0x02
#define FULL_SALE_TIME_STAMP_PAGE 0x09
#define BALANCE_PAGE 0x08
#define SALE_RECORD_TIME_STAMP_A 0x0C
#define SALE_RECORD_TIME_STAMP_B 0x0E
#define SALE_YEAR_OFFSET 2000
static bool trt_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
furi_assert(parsed_data);
const MfUltralightData* data = nfc_device_get_data(device, NfcProtocolMfUltralight);
bool parsed = false;
do {
uint8_t latest_sale_page = 0;
// Look for sale record signature
if(data->page[SALE_RECORD_TIME_STAMP_A].data[0] == LATEST_SALE_MARKER) {
latest_sale_page = SALE_RECORD_TIME_STAMP_A;
} else if(data->page[SALE_RECORD_TIME_STAMP_B].data[0] == LATEST_SALE_MARKER) {
latest_sale_page = SALE_RECORD_TIME_STAMP_B;
} else {
break;
}
// Check if the sale record was backed up
const uint8_t* partial_record_pointer = &data->page[latest_sale_page - 1].data[0];
const uint8_t* full_record_pointer = &data->page[FULL_SALE_TIME_STAMP_PAGE].data[0];
uint32_t latest_sale_record = bit_lib_get_bits_32(partial_record_pointer, 3, 20);
uint32_t latest_sale_full_record = bit_lib_get_bits_32(full_record_pointer, 0, 27);
if(latest_sale_record != (latest_sale_full_record & 0xFFFFF)) break;
// Parse date
// yyy yyyymmmm dddddhhh hhnnnnnn
uint16_t sale_year = ((latest_sale_full_record & 0x7F00000) >> 20) + SALE_YEAR_OFFSET;
uint8_t sale_month = (latest_sale_full_record & 0xF0000) >> 16;
uint8_t sale_day = (latest_sale_full_record & 0xF800) >> 11;
uint8_t sale_hour = (latest_sale_full_record & 0x7C0) >> 6;
uint8_t sale_minute = latest_sale_full_record & 0x3F;
// Parse balance
uint16_t balance = bit_lib_get_bits_16(&data->page[BALANCE_PAGE].data[2], 0, 16);
uint16_t balance_yuan = balance / 100;
uint8_t balance_cent = balance % 100;
// Format string for rendering
furi_string_cat_printf(parsed_data, "\e#TRT Tianjin Metro\n");
furi_string_cat_printf(parsed_data, "Single-Use Ticket\n");
furi_string_cat_printf(parsed_data, "Balance: %u.%02u RMB\n", balance_yuan, balance_cent);
furi_string_cat_printf(
parsed_data,
"Sale Date: \n%04u-%02d-%02d %02d:%02d",
sale_year,
sale_month,
sale_day,
sale_hour,
sale_minute);
parsed = true;
} while(false);
return parsed;
}
/* Actual implementation of app<>plugin interface */
static const NfcSupportedCardsPlugin trt_plugin = {
.protocol = NfcProtocolMfUltralight,
.verify = NULL,
.read = NULL,
.parse = trt_parse,
};
/* Plugin descriptor to comply with basic plugin specification */
static const FlipperAppPluginDescriptor trt_plugin_descriptor = {
.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
.entry_point = &trt_plugin,
};
/* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* trt_plugin_ep(void) {
return &trt_plugin_descriptor;
}