-
-
Notifications
You must be signed in to change notification settings - Fork 1.5k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #655 from DarkFlippers/nfc-parsers
Nfc parsers
- Loading branch information
Showing
5 changed files
with
462 additions
and
59 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
191 changes: 191 additions & 0 deletions
191
applications/main/nfc/plugins/supported_cards/metromoney.c
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| /* | ||
| * Parser for Metromoney card (Georgia). | ||
| * | ||
| * Copyright 2023 Leptoptilos <[email protected]> | ||
| * | ||
| * 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; | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.