mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-23 05:14:16 +03:00
193 lines
6.5 KiB
C
193 lines
6.5 KiB
C
/*
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* Parser for WashCity MarkItaly Card (Europe).
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*
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* Copyright 2023 Filipe Polido (YaBaPT) <polido@gmail.com>
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*
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* Based on MetroMoney by Leptoptilos <leptoptilos@icloud.com>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "nfc_supported_card_plugin.h"
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#include "protocols/mf_classic/mf_classic.h"
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#include <flipper_application/flipper_application.h>
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#include <nfc/nfc_device.h>
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#include <nfc/helpers/nfc_util.h>
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#include <nfc/protocols/mf_classic/mf_classic_poller_sync.h>
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#define TAG "WashCity"
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typedef struct {
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uint64_t a;
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uint64_t b;
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} MfClassicKeyPair;
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static const MfClassicKeyPair washcity_1k_keys[] = {
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{.a = 0xA0A1A2A3A4A5, .b = 0x010155010100}, // Sector 00
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{.a = 0xC78A3D0E1BCD, .b = 0xFFFFFFFFFFFF}, // Sector 01
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 02
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 03
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 04
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 05
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 06
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 07
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{.a = 0xC78A3D0E0000, .b = 0xFFFFFFFFFFFF}, // Sector 08
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 09
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 10
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 11
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 12
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 13
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 14
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{.a = 0x010155010100, .b = 0xFFFFFFFFFFFF}, // Sector 15
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};
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static bool washcity_verify(Nfc* nfc) {
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bool verified = false;
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do {
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const uint8_t ticket_sector_number = 0;
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const uint8_t ticket_block_number =
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mf_classic_get_first_block_num_of_sector(ticket_sector_number) + 1;
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FURI_LOG_D(TAG, "Verifying sector %u", ticket_sector_number);
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MfClassicKey key = {0};
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nfc_util_num2bytes(washcity_1k_keys[ticket_sector_number].a, COUNT_OF(key.data), key.data);
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MfClassicAuthContext auth_context;
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MfClassicError error = mf_classic_poller_sync_auth(
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nfc, ticket_block_number, &key, MfClassicKeyTypeA, &auth_context);
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if(error != MfClassicErrorNone) {
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FURI_LOG_D(TAG, "Failed to read block %u: %d", ticket_block_number, error);
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break;
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}
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verified = true;
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} while(false);
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return verified;
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}
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static bool washcity_read(Nfc* nfc, NfcDevice* device) {
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furi_assert(nfc);
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furi_assert(device);
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bool is_read = false;
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MfClassicData* data = mf_classic_alloc();
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nfc_device_copy_data(device, NfcProtocolMfClassic, data);
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do {
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MfClassicType type = MfClassicTypeMini;
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MfClassicError error = mf_classic_poller_sync_detect_type(nfc, &type);
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if(error != MfClassicErrorNone) break;
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data->type = type;
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if(type != MfClassicType1k) break;
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MfClassicDeviceKeys keys = {
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.key_a_mask = 0,
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.key_b_mask = 0,
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};
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for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
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nfc_util_num2bytes(washcity_1k_keys[i].a, sizeof(MfClassicKey), keys.key_a[i].data);
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FURI_BIT_SET(keys.key_a_mask, i);
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nfc_util_num2bytes(washcity_1k_keys[i].b, sizeof(MfClassicKey), keys.key_b[i].data);
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FURI_BIT_SET(keys.key_b_mask, i);
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}
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error = mf_classic_poller_sync_read(nfc, &keys, data);
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if(error != MfClassicErrorNone) {
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FURI_LOG_W(TAG, "Failed to read data");
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break;
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}
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nfc_device_set_data(device, NfcProtocolMfClassic, data);
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is_read = mf_classic_is_card_read(data);
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} while(false);
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mf_classic_free(data);
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return is_read;
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}
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static bool washcity_parse(const NfcDevice* device, FuriString* parsed_data) {
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furi_assert(device);
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const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
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bool parsed = false;
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do {
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// Verify key
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const uint8_t ticket_sector_number = 1;
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const uint8_t ticket_block_number = 0;
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const MfClassicSectorTrailer* sec_tr =
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mf_classic_get_sector_trailer_by_sector(data, ticket_sector_number);
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const uint64_t key = nfc_util_bytes2num(sec_tr->key_a.data, COUNT_OF(sec_tr->key_a.data));
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if(key != washcity_1k_keys[ticket_sector_number].a) break;
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// Parse data
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const uint8_t start_block_num =
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mf_classic_get_first_block_num_of_sector(ticket_sector_number);
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const uint8_t* block_start_ptr =
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&data->block[start_block_num + ticket_block_number].data[0];
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uint32_t balance = nfc_util_bytes2num(block_start_ptr + 2, 2);
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uint32_t balance_usd = balance / 100;
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uint8_t balance_cents = balance % 100;
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size_t uid_len = 0;
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const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
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// Card Number is printed in HEX (equal to UID)
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uint64_t card_number = nfc_util_bytes2num(uid, uid_len);
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furi_string_printf(
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parsed_data,
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"\e#WashCity\nCard number: %0*llX\nBalance: %lu.%02u EUR",
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uid_len * 2,
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card_number,
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balance_usd,
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balance_cents);
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parsed = true;
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} while(false);
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return parsed;
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}
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/* Actual implementation of app<>plugin interface */
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static const NfcSupportedCardsPlugin washcity_plugin = {
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.protocol = NfcProtocolMfClassic,
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.verify = washcity_verify,
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.read = washcity_read,
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.parse = washcity_parse,
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};
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/* Plugin descriptor to comply with basic plugin specification */
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static const FlipperAppPluginDescriptor washcity_plugin_descriptor = {
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.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
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.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
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.entry_point = &washcity_plugin,
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};
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/* Plugin entry point - must return a pointer to const descriptor */
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const FlipperAppPluginDescriptor* washcity_plugin_ep() {
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return &washcity_plugin_descriptor;
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} |