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https://github.com/DarkFlippers/unleashed-firmware.git
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Kazan transport cards parser added
This commit is contained in:
Methodius
parent
5f18532a59
commit
6c2e332638
@ -101,6 +101,15 @@ App(
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sources=["plugins/supported_cards/metromoney.c"],
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)
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App(
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appid="kazan_parser",
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apptype=FlipperAppType.PLUGIN,
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entry_point="kazan_plugin_ep",
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targets=["f7"],
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requires=["nfc"],
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sources=["plugins/supported_cards/kazan.c"],
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)
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App(
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appid="nfc_start",
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targets=["f7"],
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287
applications/main/nfc/plugins/supported_cards/kazan.c
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287
applications/main/nfc/plugins/supported_cards/kazan.c
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@ -0,0 +1,287 @@
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/*
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* Parser for Kazan transport card (Kazan, Russia).
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*
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* Copyright 2023 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 "core/log.h"
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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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#include <stdbool.h>
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#include <stdint.h>
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#include <furi_hal_rtc.h>
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#include "md5.h"
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#define TAG "Kazan"
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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 kazan_1k_keys[] = {
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xE954024EE754, .b = 0x0CD464CDC100},
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{.a = 0xBC305FE2DA65, .b = 0xCF0EC6ACF2F9},
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{.a = 0xF7A545095C49, .b = 0x6862FD600F78},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
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};
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enum SubscriptionType {
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SUBSCRIPTION_TYPE_UNKNOWN,
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SUBSCRIPTION_TYPE_PURSE,
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SUBSCRIPTION_TYPE_UNLIMITED,
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};
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enum SubscriptionType get_subscription_type(uint8_t value) {
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switch(value) {
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case 0:
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case 0x60:
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case 0x67:
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case 0x0F:
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return SUBSCRIPTION_TYPE_UNLIMITED;
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case 0x53:
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return SUBSCRIPTION_TYPE_PURSE;
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default:
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return SUBSCRIPTION_TYPE_UNKNOWN;
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}
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}
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static bool kazan_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 = 8;
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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(kazan_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 kazan_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(kazan_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(kazan_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 = true;
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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 kazan_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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const uint8_t ticket_sector_number = 8;
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const uint8_t balance_sector_number = 9;
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// Verify keys
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MfClassicKeyPair keys = {};
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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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keys.a = nfc_util_bytes2num(sec_tr->key_a.data, COUNT_OF(sec_tr->key_a.data));
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keys.b = nfc_util_bytes2num(sec_tr->key_b.data, COUNT_OF(sec_tr->key_b.data));
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if((keys.a != 0xE954024EE754) && (keys.b != 0x0CD464CDC100)) break;
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// Parse data
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uint8_t start_block_num = mf_classic_get_first_block_num_of_sector(ticket_sector_number);
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const uint8_t* block_start_ptr = &data->block[start_block_num].data[6];
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enum SubscriptionType subscription_type = get_subscription_type(block_start_ptr[0]);
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FuriHalRtcDateTime valid_from;
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valid_from.year = 2000 + block_start_ptr[1];
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valid_from.month = block_start_ptr[2];
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valid_from.day = block_start_ptr[3];
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FuriHalRtcDateTime valid_to;
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valid_to.year = 2000 + block_start_ptr[4];
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valid_to.month = block_start_ptr[5];
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valid_to.day = block_start_ptr[6];
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const uint8_t last_trip_block_number = 2;
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block_start_ptr = &data->block[start_block_num + last_trip_block_number].data[1];
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FuriHalRtcDateTime last_trip;
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last_trip.year = 2000 + block_start_ptr[0];
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last_trip.month = block_start_ptr[1];
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last_trip.day = block_start_ptr[2];
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last_trip.hour = block_start_ptr[3];
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last_trip.minute = block_start_ptr[4];
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bool is_last_trip_valid = (block_start_ptr[0] | block_start_ptr[1] | block_start_ptr[0]) &&
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(last_trip.day < 32 && last_trip.month < 12 &&
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last_trip.hour < 24 && last_trip.minute < 60);
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start_block_num = mf_classic_get_first_block_num_of_sector(balance_sector_number);
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block_start_ptr = &data->block[start_block_num].data[0];
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const uint32_t trip_counter = (block_start_ptr[3] << 24) | (block_start_ptr[2] << 16) |
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(block_start_ptr[1] << 8) | (block_start_ptr[0]);
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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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const uint32_t card_number = (uid[3] << 24) | (uid[2] << 16) | (uid[1] << 8) | (uid[0]);
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furi_string_cat_printf(
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parsed_data, "\e#Kazan transport card\nCard number: %lu\n", card_number);
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if(subscription_type == SUBSCRIPTION_TYPE_PURSE) {
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furi_string_cat_printf(
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parsed_data,
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"Type: purse\nBalance: %lu RUR\nBalance valid:\nfrom: %02u.%02u.%u\nto: %02u.%02u.%u",
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trip_counter,
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valid_from.day,
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valid_from.month,
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valid_from.year,
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valid_to.day,
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valid_to.month,
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valid_to.year);
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}
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if(subscription_type == SUBSCRIPTION_TYPE_UNLIMITED) {
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furi_string_cat_printf(
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parsed_data,
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"Type: unlimited\nTrips left: %lu\nCard valid:\nfrom: %02u.%02u.%u\nto: %02u.%02u.%u",
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trip_counter,
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valid_from.day,
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valid_from.month,
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valid_from.year,
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valid_to.day,
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valid_to.month,
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valid_to.year);
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}
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if(subscription_type == SUBSCRIPTION_TYPE_UNKNOWN) {
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furi_string_cat_printf(
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parsed_data,
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"Type: Unknown\nBalance: %lu RUR\nValid from: %02u.%02u.%u\nValid to: %02u.%02u.%u",
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trip_counter,
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valid_from.day,
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valid_from.month,
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valid_from.year,
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valid_to.day,
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valid_to.month,
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valid_to.year);
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}
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if(is_last_trip_valid) {
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furi_string_cat_printf(
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parsed_data,
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"\nLast trip: %02u.%02u.%u at %02u:%02u",
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last_trip.day,
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last_trip.month,
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last_trip.year,
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last_trip.hour,
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last_trip.minute);
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}
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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 kazan_plugin = {
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.protocol = NfcProtocolMfClassic,
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.verify = kazan_verify,
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.read = kazan_read,
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.parse = kazan_parse,
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};
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/* Plugin descriptor to comply with basic plugin specification */
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static const FlipperAppPluginDescriptor kazan_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 = &kazan_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* kazan_plugin_ep() {
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return &kazan_plugin_descriptor;
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}
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