Merge pull request #655 from DarkFlippers/nfc-parsers

Nfc parsers
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MMX 2023-11-22 01:50:54 +03:00 committed by GitHub
commit 972054b377
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5 changed files with 462 additions and 59 deletions

View File

@ -83,6 +83,24 @@ App(
sources=["plugins/supported_cards/two_cities.c"],
)
App(
appid="umarsh_parser",
apptype=FlipperAppType.PLUGIN,
entry_point="umarsh_plugin_ep",
targets=["f7"],
requires=["nfc"],
sources=["plugins/supported_cards/umarsh.c"],
)
App(
appid="metromoney_parser",
apptype=FlipperAppType.PLUGIN,
entry_point="metromoney_plugin_ep",
targets=["f7"],
requires=["nfc"],
sources=["plugins/supported_cards/metromoney.c"],
)
App(
appid="nfc_start",
targets=["f7"],

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@ -0,0 +1,191 @@
/*
* Parser for Metromoney card (Georgia).
*
* Copyright 2023 Leptoptilos <leptoptilos@icloud.com>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "nfc_supported_card_plugin.h"
#include "protocols/mf_classic/mf_classic.h"
#include <flipper_application/flipper_application.h>
#include <nfc/nfc_device.h>
#include <nfc/helpers/nfc_util.h>
#include <nfc/protocols/mf_classic/mf_classic_poller_sync.h>
#include <stdint.h>
#define TAG "Metromoney"
typedef struct {
uint64_t a;
uint64_t b;
} MfClassicKeyPair;
static const MfClassicKeyPair metromoney_1k_keys[] = {
{.a = 0x2803BCB0C7E1, .b = 0x4FA9EB49F75E},
{.a = 0x9C616585E26D, .b = 0xD1C71E590D16},
{.a = 0x9C616585E26D, .b = 0xA160FCD5EC4C},
{.a = 0x9C616585E26D, .b = 0xA160FCD5EC4C},
{.a = 0x9C616585E26D, .b = 0xA160FCD5EC4C},
{.a = 0x9C616585E26D, .b = 0xA160FCD5EC4C},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0x112233445566, .b = 0x361A62F35BC9},
{.a = 0x112233445566, .b = 0x361A62F35BC9},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
{.a = 0xFFFFFFFFFFFF, .b = 0xFFFFFFFFFFFF},
};
static bool metromoney_verify(Nfc* nfc) {
bool verified = false;
do {
const uint8_t ticket_sector_number = 1;
const uint8_t ticket_block_number =
mf_classic_get_first_block_num_of_sector(ticket_sector_number) + 1;
FURI_LOG_D(TAG, "Verifying sector %u", ticket_sector_number);
MfClassicKey key = {0};
nfc_util_num2bytes(
metromoney_1k_keys[ticket_sector_number].a, COUNT_OF(key.data), key.data);
MfClassicAuthContext auth_context;
MfClassicError error = mf_classic_poller_sync_auth(
nfc, ticket_block_number, &key, MfClassicKeyTypeA, &auth_context);
if(error != MfClassicErrorNone) {
FURI_LOG_D(TAG, "Failed to read block %u: %d", ticket_block_number, error);
break;
}
verified = true;
} while(false);
return verified;
}
static bool metromoney_read(Nfc* nfc, NfcDevice* device) {
furi_assert(nfc);
furi_assert(device);
bool is_read = false;
MfClassicData* data = mf_classic_alloc();
nfc_device_copy_data(device, NfcProtocolMfClassic, data);
do {
MfClassicType type = MfClassicTypeMini;
MfClassicError error = mf_classic_poller_sync_detect_type(nfc, &type);
if(error != MfClassicErrorNone) break;
data->type = type;
if(type != MfClassicType1k) break;
MfClassicDeviceKeys keys = {
.key_a_mask = 0,
.key_b_mask = 0,
};
for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
nfc_util_num2bytes(metromoney_1k_keys[i].a, sizeof(MfClassicKey), keys.key_a[i].data);
FURI_BIT_SET(keys.key_a_mask, i);
nfc_util_num2bytes(metromoney_1k_keys[i].b, sizeof(MfClassicKey), keys.key_b[i].data);
FURI_BIT_SET(keys.key_b_mask, i);
}
error = mf_classic_poller_sync_read(nfc, &keys, data);
if(error != MfClassicErrorNone) {
FURI_LOG_W(TAG, "Failed to read data");
break;
}
nfc_device_set_data(device, NfcProtocolMfClassic, data);
is_read = true;
} while(false);
mf_classic_free(data);
return is_read;
}
static bool metromoney_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
bool parsed = false;
do {
// Verify key
const uint8_t ticket_sector_number = 1;
const uint8_t ticket_block_number = 1;
const MfClassicSectorTrailer* sec_tr =
mf_classic_get_sector_trailer_by_sector(data, ticket_sector_number);
const uint64_t key = nfc_util_bytes2num(sec_tr->key_a.data, COUNT_OF(sec_tr->key_a.data));
if(key != metromoney_1k_keys[ticket_sector_number].a) break;
// Parse data
const uint8_t start_block_num =
mf_classic_get_first_block_num_of_sector(ticket_sector_number);
const uint8_t* block_start_ptr =
&data->block[start_block_num + ticket_block_number].data[0];
uint32_t balance = (block_start_ptr[3] << 24) | (block_start_ptr[2] << 16) |
(block_start_ptr[1] << 8) | (block_start_ptr[0]);
uint32_t balance_lari = balance / 100;
uint8_t balance_tetri = balance % 100;
size_t uid_len = 0;
const uint8_t* uid = mf_classic_get_uid(data, &uid_len);
uint32_t card_number = (uid[3] << 24) | (uid[2] << 16) | (uid[1] << 8) | (uid[0]);
furi_string_printf(
parsed_data,
"\e#Metromoney\nCard number: %lu\nBalance: %lu.%02u GEL",
card_number,
balance_lari,
balance_tetri);
parsed = true;
} while(false);
return parsed;
}
/* Actual implementation of app<>plugin interface */
static const NfcSupportedCardsPlugin metromoney_plugin = {
.protocol = NfcProtocolMfClassic,
.verify = metromoney_verify,
.read = metromoney_read,
.parse = metromoney_parse,
};
/* Plugin descriptor to comply with basic plugin specification */
static const FlipperAppPluginDescriptor metromoney_plugin_descriptor = {
.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
.entry_point = &metromoney_plugin,
};
/* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* metromoney_plugin_ep() {
return &metromoney_plugin_descriptor;
}

View File

@ -10,7 +10,7 @@
#include <furi_hal_rtc.h>
#include <core/check.h>
#define TAG "Social Moscow"
#define TAG "Social_Moscow"
typedef struct {
uint64_t a;
@ -22,6 +22,24 @@ typedef struct {
uint32_t data_sector;
} SocialMoscowCardConfig;
static const MfClassicKeyPair social_moscow_1k_keys[] = {
{.a = 0xa0a1a2a3a4a5, .b = 0x7de02a7f6025},
{.a = 0x2735fc181807, .b = 0xbf23a53c1f63},
{.a = 0x2aba9519f574, .b = 0xcb9a1f2d7368},
{.a = 0x84fd7f7a12b6, .b = 0xc7c0adb3284f},
{.a = 0x73068f118c13, .b = 0x2b7f3253fac5},
{.a = 0x186d8c4b93f9, .b = 0x9f131d8c2057},
{.a = 0x3a4bba8adaf0, .b = 0x67362d90f973},
{.a = 0x8765b17968a2, .b = 0x6202a38f69e2},
{.a = 0x40ead80721ce, .b = 0x100533b89331},
{.a = 0x0db5e6523f7c, .b = 0x653a87594079},
{.a = 0x51119dae5216, .b = 0xd8a274b2e026},
{.a = 0x51119dae5216, .b = 0xd8a274b2e026},
{.a = 0x51119dae5216, .b = 0xd8a274b2e026},
{.a = 0x2aba9519f574, .b = 0xcb9a1f2d7368},
{.a = 0x84fd7f7a12b6, .b = 0xc7c0adb3284f},
{.a = 0xa0a1a2a3a4a5, .b = 0x7de02a7f6025}};
static const MfClassicKeyPair social_moscow_4k_keys[] = {
{.a = 0xa0a1a2a3a4a5, .b = 0x7de02a7f6025}, {.a = 0x2735fc181807, .b = 0xbf23a53c1f63},
{.a = 0x2aba9519f574, .b = 0xcb9a1f2d7368}, {.a = 0x84fd7f7a12b6, .b = 0xc7c0adb3284f},
@ -511,7 +529,7 @@ void from_minutes_to_datetime(uint32_t minutes, FuriHalRtcDateTime* datetime, ui
bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
uint16_t transport_departament = bit_lib_get_bits_16(block->data, 0, 10);
FURI_LOG_D(TAG, "Transport departament: %x", transport_departament);
FURI_LOG_I(TAG, "Transport departament: %x", transport_departament);
uint16_t layout_type = bit_lib_get_bits_16(block->data, 52, 4);
if(layout_type == 0xE) {
@ -520,7 +538,7 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
layout_type = bit_lib_get_bits_16(block->data, 52, 14);
}
FURI_LOG_D(TAG, "Layout type %x", layout_type);
FURI_LOG_I(TAG, "Layout type %x", layout_type);
uint16_t card_view = 0;
uint16_t card_type = 0;
@ -1444,8 +1462,10 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
static bool social_moscow_get_card_config(SocialMoscowCardConfig* config, MfClassicType type) {
bool success = true;
if(type == MfClassicType4k) {
if(type == MfClassicType1k) {
config->data_sector = 15;
config->keys = social_moscow_1k_keys;
} else if(type == MfClassicType4k) {
config->data_sector = 15;
config->keys = social_moscow_4k_keys;
} else {
@ -1475,7 +1495,7 @@ static bool social_moscow_verify_type(Nfc* nfc, MfClassicType type) {
FURI_LOG_D(TAG, "Failed to read block %u: %d", block_num, error);
break;
}
FURI_LOG_D(TAG, "Verify success!");
verified = true;
} while(false);
@ -1497,7 +1517,7 @@ static bool social_moscow_read(Nfc* nfc, NfcDevice* device) {
nfc_device_copy_data(device, NfcProtocolMfClassic, data);
do {
MfClassicType type = MfClassicTypeMini;
MfClassicType type = MfClassicType4k;
MfClassicError error = mf_classic_poller_sync_detect_type(nfc, &type);
if(error != MfClassicErrorNone) break;
@ -1537,6 +1557,17 @@ static bool social_moscow_parse(const NfcDevice* device, FuriString* parsed_data
bool parsed = false;
do {
// Verify card type
SocialMoscowCardConfig cfg = {};
if(!social_moscow_get_card_config(&cfg, data->type)) break;
// Verify key
const MfClassicSectorTrailer* sec_tr =
mf_classic_get_sector_trailer_by_sector(data, cfg.data_sector);
const uint64_t key = nfc_util_bytes2num(sec_tr->key_a.data, COUNT_OF(sec_tr->key_a.data));
if(key != cfg.keys[cfg.data_sector].a) break;
uint32_t card_code = bit_lib_get_bits_32(data->block[60].data, 8, 24);
uint8_t card_region = bit_lib_get_bits(data->block[60].data, 32, 8);
uint64_t card_number = bit_lib_get_bits_64(data->block[60].data, 40, 40);
@ -1549,27 +1580,29 @@ static bool social_moscow_parse(const NfcDevice* device, FuriString* parsed_data
FuriString* ground_result = furi_string_alloc();
bool result1 = parse_transport_block(&data->block[4], metro_result);
bool result2 = parse_transport_block(&data->block[16], ground_result);
if(result1 || result2) {
furi_string_printf(
parsed_data,
"\e#Social \ecard\nNumber: %lx %x %llx %x\nOMC: %llx\nValid for: %02x/%02x %02x%02x\n\e#Metro\n%s\n\e#Ground\n%s",
card_code,
card_region,
card_number,
card_control,
omc_number,
month,
year,
data->block[60].data[13],
data->block[60].data[14],
furi_string_get_cstr(metro_result),
furi_string_get_cstr(ground_result));
furi_string_free(metro_result);
furi_string_free(ground_result);
parsed = true;
} else {
return false;
furi_string_cat_printf(
parsed_data,
"\e#Social \ecard\nNumber: %lx %x %llx %x\nOMC: %llx\nValid for: %02x/%02x %02x%02x\n",
card_code,
card_region,
card_number,
card_control,
omc_number,
month,
year,
data->block[60].data[13],
data->block[60].data[14]);
if(result1) {
furi_string_cat_printf(
parsed_data, "\e#Metro\n%s\n", furi_string_get_cstr(metro_result));
}
if(result2) {
furi_string_cat_printf(
parsed_data, "\e#Ground\n%s\n", furi_string_get_cstr(ground_result));
}
furi_string_free(ground_result);
furi_string_free(metro_result);
parsed = result1 || result2;
} while(false);
return parsed;

View File

@ -530,7 +530,7 @@ void from_minutes_to_datetime(uint32_t minutes, FuriHalRtcDateTime* datetime, ui
bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
uint16_t transport_departament = bit_lib_get_bits_16(block->data, 0, 10);
FURI_LOG_D(TAG, "Transport departament: %x", transport_departament);
FURI_LOG_I(TAG, "Transport departament: %x", transport_departament);
uint16_t layout_type = bit_lib_get_bits_16(block->data, 52, 4);
if(layout_type == 0xE) {
@ -539,7 +539,7 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
layout_type = bit_lib_get_bits_16(block->data, 52, 14);
}
FURI_LOG_D(TAG, "Layout type %x", layout_type);
FURI_LOG_I(TAG, "Layout type %x", layout_type);
uint16_t card_view = 0;
uint16_t card_type = 0;
@ -612,6 +612,31 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_write_enabled,
card_rfu2,
card_crc16_2);
if(card_valid_by_date == 0) {
return false;
}
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_valid_by_date, &card_use_before_date_s, 1992);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
(card_start_trip_date) * 24 * 60 + card_start_trip_time,
&card_start_trip_minutes_s,
1992);
furi_string_printf(
result,
"Number: %010lu\nValid for: %02d.%02d.%04d\nTrips: %d\nTrip from: %02d.%02d.%04d %02d:%02d\nValidator: %05d",
card_number,
card_use_before_date_s.day,
card_use_before_date_s.month,
card_use_before_date_s.year,
card_total_trips,
card_start_trip_minutes_s.day,
card_start_trip_minutes_s.month,
card_start_trip_minutes_s.year,
card_start_trip_minutes_s.hour,
card_start_trip_minutes_s.minute,
card_validator);
break;
}
case 0x06: {
@ -668,11 +693,11 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_crc16_2);
card_validator = card_validator1 * 1024 + card_validator2;
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_valid_by_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_valid_by_date, &card_use_before_date_s, 1992);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
(card_start_trip_date - 1) * 24 * 60 + card_start_trip_time,
(card_start_trip_date) * 24 * 60 + card_start_trip_time,
&card_start_trip_minutes_s,
1992);
furi_string_printf(
@ -730,7 +755,7 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_valid_from_date,
card_rfu3);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_use_before_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_use_before_date, &card_use_before_date_s, 1992);
furi_string_printf(
result,
@ -783,11 +808,10 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_transport_type4,
card_hash);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_use_before_date - 1, &card_use_before_date_s, 2016);
from_days_to_datetime(card_use_before_date, &card_use_before_date_s, 2016);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
card_start_trip_minutes - (2 * 24 * 60), &card_start_trip_minutes_s, 2016);
from_minutes_to_datetime(card_start_trip_minutes, &card_start_trip_minutes_s, 2016);
furi_string_printf(
result,
"Number: %010lu\nValid for: %02d.%02d.%04d\nTrip from: %02d.%02d.%04d %02d:%02d\nTrips left: %d\nValidator: %05d",
@ -844,10 +868,10 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_rfu3,
card_transfer_in_metro);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_use_before_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_use_before_date, &card_use_before_date_s, 1992);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
(card_start_trip_date - 1) * 24 * 60 + card_start_trip_time,
(card_start_trip_date) * 24 * 60 + card_start_trip_time,
&card_start_trip_minutes_s,
1992);
furi_string_printf(
@ -925,10 +949,10 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_rfu5,
card_transfer_in_metro);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_use_before_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_use_before_date, &card_use_before_date_s, 1992);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
(card_start_trip_date - 1) * 24 * 60 + card_start_trip_time,
(card_start_trip_date) * 24 * 60 + card_start_trip_time,
&card_start_trip_minutes_s,
1992);
furi_string_printf(
@ -995,11 +1019,10 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_zoo,
card_hash);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_use_before_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_use_before_date, &card_use_before_date_s, 1992);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
card_start_trip_minutes - (2 * 24 * 60), &card_start_trip_minutes_s, 1992);
from_minutes_to_datetime(card_start_trip_minutes, &card_start_trip_minutes_s, 1992);
furi_string_printf(
result,
"Number: %010lu\nValid for: %02d.%02d.%04d\nTrip from: %02d.%02d.%04d %02d:%02d\nValidator: %05d",
@ -1065,12 +1088,11 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_extended,
card_hash);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_use_before_date - 1, &card_use_before_date_s, 2016);
from_days_to_datetime(card_use_before_date, &card_use_before_date_s, 2016);
FuriHalRtcDateTime card_start_trip_minutes_s = {0};
from_minutes_to_datetime(
(card_valid_to_date - 1) * 24 * 60 + card_valid_for_minutes -
card_start_trip_neg_minutes,
(card_valid_to_date) * 24 * 60 + card_valid_for_minutes - card_start_trip_neg_minutes,
&card_start_trip_minutes_s,
2016); //-time
furi_string_printf(
@ -1405,7 +1427,7 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_type4,
card_hash);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_valid_by_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_valid_by_date, &card_use_before_date_s, 1992);
furi_string_printf(
result,
@ -1441,7 +1463,7 @@ bool parse_transport_block(const MfClassicBlock* block, FuriString* result) {
card_valid_by_date,
card_hash);
FuriHalRtcDateTime card_use_before_date_s = {0};
from_days_to_datetime(card_valid_by_date - 1, &card_use_before_date_s, 1992);
from_days_to_datetime(card_valid_by_date, &card_use_before_date_s, 1992);
furi_string_printf(
result,
@ -1496,7 +1518,7 @@ static bool troika_verify_type(Nfc* nfc, MfClassicType type) {
FURI_LOG_D(TAG, "Failed to read block %u: %d", block_num, error);
break;
}
FURI_LOG_D(TAG, "Verify success!");
verified = true;
} while(false);
@ -1573,20 +1595,26 @@ static bool troika_parse(const NfcDevice* device, FuriString* parsed_data) {
FuriString* metro_result = furi_string_alloc();
FuriString* ground_result = furi_string_alloc();
FuriString* tat_result = furi_string_alloc();
bool result1 = parse_transport_block(&data->block[32], metro_result);
bool result2 = parse_transport_block(&data->block[28], ground_result);
if(result1 || result2) {
furi_string_printf(
parsed_data,
"\e#Troika\n%s\n\e#Ediniy\n%s\n\e#TAT\n",
furi_string_get_cstr(metro_result),
furi_string_get_cstr(ground_result));
furi_string_free(metro_result);
furi_string_free(ground_result);
parsed = true;
} else {
return false;
bool result3 = parse_transport_block(&data->block[16], tat_result);
furi_string_cat_printf(parsed_data, "\e#Troyka card\n");
if(result1) {
furi_string_cat_printf(
parsed_data, "\e#Metro\n%s\n", furi_string_get_cstr(metro_result));
}
if(result2) {
furi_string_cat_printf(
parsed_data, "\e#Ediniy\n%s\n", furi_string_get_cstr(ground_result));
}
if(result3) {
furi_string_cat_printf(parsed_data, "\e#TAT\n%s\n", furi_string_get_cstr(tat_result));
}
furi_string_free(tat_result);
furi_string_free(ground_result);
furi_string_free(metro_result);
parsed = result1 || result2 || result3;
} while(false);
return parsed;

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@ -0,0 +1,133 @@
/*
* Parser for Umarsh card (Russia).
*
* Copyright 2023 Leptoptilos <leptoptilos@icloud.com>
* Thanks https://github.com/krolchonok for the provided dumps and their analysis
*
* Note: All meaningful data is stored in sectors 0, 8 and 12, reading data
* from which is possible only with the B key. The key B for these sectors
* is unique for each card. To get it, you should use a nested attack.
* More info about Umarsh cards: https://github.com/metrodroid/metrodroid/wiki/Umarsh
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "core/core_defines.h"
#include "nfc_supported_card_plugin.h"
#include "protocols/mf_classic/mf_classic.h"
#include <flipper_application/flipper_application.h>
#include <nfc/nfc_device.h>
#include <nfc/helpers/nfc_util.h>
#include <nfc/protocols/mf_classic/mf_classic_poller_sync.h>
#include <stdbool.h>
#include <stdint.h>
#include <furi_hal_rtc.h>
#define TAG "Umarsh"
static bool umarsh_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device);
const MfClassicData* data = nfc_device_get_data(device, NfcProtocolMfClassic);
bool parsed = false;
do {
// Verify card type
if(data->type != MfClassicType1k) break;
const uint32_t ticket_sector = 8;
const uint8_t ticket_sector_start_block_number =
mf_classic_get_first_block_num_of_sector(ticket_sector);
//Validate specific for Umarsh ticket sector header
const uint8_t* block_start_ptr = &data->block[ticket_sector_start_block_number].data[0];
uint32_t header = block_start_ptr[0] << 24 | block_start_ptr[1] << 16 |
block_start_ptr[2] << 8 | block_start_ptr[3];
if(header != 0xFFFFFF7F && header != 0xFEFFFF7F && header != 0xE3FFFF7F) break;
// Data parsing from block 1
block_start_ptr = &data->block[ticket_sector_start_block_number + 1].data[0];
uint8_t region_number = (((block_start_ptr[8] >> 5) & 0x07) << 4) |
(block_start_ptr[12] & 0x0F);
uint32_t card_number = (block_start_ptr[8] << 24 | block_start_ptr[9] << 16 |
block_start_ptr[10] << 8 | block_start_ptr[11]) &
0x3FFFFFFF;
uint8_t refill_counter = (block_start_ptr[7]);
if(card_number == 0) break;
// Data parsing from block 2
block_start_ptr = &data->block[ticket_sector_start_block_number + 2].data[0];
uint16_t expiry_date = (block_start_ptr[0] << 8 | block_start_ptr[1]);
uint32_t terminal_number =
(block_start_ptr[3] << 16 | block_start_ptr[4] << 8 | block_start_ptr[5]);
uint16_t last_refill_date = (block_start_ptr[6] << 8 | block_start_ptr[7]);
uint16_t balance_rub = (block_start_ptr[8] << 8 | block_start_ptr[9]) & 0x7FFF;
uint8_t balance_kop = block_start_ptr[10] & 0x7F;
FuriHalRtcDateTime expiry_datetime;
expiry_datetime.year = 2000 + (expiry_date >> 9);
expiry_datetime.month = expiry_date >> 5 & 0x0F;
expiry_datetime.day = expiry_date & 0x1F;
FuriHalRtcDateTime last_refill_datetime;
last_refill_datetime.year = 2000 + (last_refill_date >> 9);
last_refill_datetime.month = last_refill_date >> 5 & 0x0F;
last_refill_datetime.day = last_refill_date & 0x1F;
furi_string_printf(
parsed_data,
"\e#Umarsh\nCard number: %lu\nRegion: %02u\nBalance: %u.%u RUR\nTerminal number: %lu\nRefill counter: %u\nLast refill: %02u.%02u.%u\nExpires: %02u.%02u.%u",
card_number,
region_number,
balance_rub,
balance_kop,
terminal_number,
refill_counter,
last_refill_datetime.day,
last_refill_datetime.month,
last_refill_datetime.year,
expiry_datetime.day,
expiry_datetime.month,
expiry_datetime.year);
parsed = true;
} while(false);
return parsed;
}
/* Actual implementation of app<>plugin interface */
static const NfcSupportedCardsPlugin umarsh_plugin = {
.protocol = NfcProtocolMfClassic,
.verify = NULL,
.read = NULL,
.parse = umarsh_parse,
};
/* Plugin descriptor to comply with basic plugin specification */
static const FlipperAppPluginDescriptor umarsh_plugin_descriptor = {
.appid = NFC_SUPPORTED_CARD_PLUGIN_APP_ID,
.ep_api_version = NFC_SUPPORTED_CARD_PLUGIN_API_VERSION,
.entry_point = &umarsh_plugin,
};
/* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* umarsh_plugin_ep() {
return &umarsh_plugin_descriptor;
}