mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-27 15:22:29 +03:00
220 lines
8.2 KiB
C
220 lines
8.2 KiB
C
#include "nfc_supported_card_plugin.h"
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#include <flipper_application.h>
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#include <nfc/protocols/mf_classic/mf_classic_poller_sync.h>
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#include <bit_lib.h>
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#define TAG "Plantain"
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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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typedef struct {
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const MfClassicKeyPair* keys;
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uint32_t data_sector;
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} PlantainCardConfig;
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static const MfClassicKeyPair plantain_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 = 0xe56ac127dd45, .b = 0x19fc84a3784b},
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{.a = 0x77dabc9825e1, .b = 0x9764fec3154a},
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{.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0x26973ea74321, .b = 0xd27058c6e2c7},
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{.a = 0xeb0a8ff88ade, .b = 0x578a9ada41e3},
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{.a = 0xea0fd73cb149, .b = 0x29c35fa068fb},
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{.a = 0xc76bf71a2509, .b = 0x9ba241db3f56},
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{.a = 0xacffffffffff, .b = 0x71f3a315ad26},
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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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static const MfClassicKeyPair plantain_4k_keys[] = {
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{.a = 0xffffffffffff, .b = 0xffffffffffff}, {.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0xffffffffffff, .b = 0xffffffffffff}, {.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0xe56ac127dd45, .b = 0x19fc84a3784b}, {.a = 0x77dabc9825e1, .b = 0x9764fec3154a},
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{.a = 0xffffffffffff, .b = 0xffffffffffff}, {.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0x26973ea74321, .b = 0xd27058c6e2c7}, {.a = 0xeb0a8ff88ade, .b = 0x578a9ada41e3},
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{.a = 0xea0fd73cb149, .b = 0x29c35fa068fb}, {.a = 0xc76bf71a2509, .b = 0x9ba241db3f56},
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{.a = 0xacffffffffff, .b = 0x71f3a315ad26}, {.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0xffffffffffff, .b = 0xffffffffffff}, {.a = 0xffffffffffff, .b = 0xffffffffffff},
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{.a = 0x72f96bdd3714, .b = 0x462225cd34cf}, {.a = 0x044ce1872bc3, .b = 0x8c90c70cff4a},
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{.a = 0xbc2d1791dec1, .b = 0xca96a487de0b}, {.a = 0x8791b2ccb5c4, .b = 0xc956c3b80da3},
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{.a = 0x8e26e45e7d65, .b = 0x8e65b3af7d22}, {.a = 0x0f318130ed18, .b = 0x0c420a20e056},
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{.a = 0x045ceca15535, .b = 0x31bec3d9e510}, {.a = 0x9d993c5d4ef4, .b = 0x86120e488abf},
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{.a = 0xc65d4eaa645b, .b = 0xb69d40d1a439}, {.a = 0x3a8a139c20b4, .b = 0x8818a9c5d406},
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{.a = 0xbaff3053b496, .b = 0x4b7cb25354d3}, {.a = 0x7413b599c4ea, .b = 0xb0a2AAF3A1BA},
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{.a = 0x0ce7cd2cc72b, .b = 0xfa1fbb3f0f1f}, {.a = 0x0be5fac8b06a, .b = 0x6f95887a4fd3},
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{.a = 0x0eb23cc8110b, .b = 0x04dc35277635}, {.a = 0xbc4580b7f20b, .b = 0xd0a4131fb290},
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{.a = 0x7a396f0d633d, .b = 0xad2bdc097023}, {.a = 0xa3faa6daff67, .b = 0x7600e889adf9},
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{.a = 0xfd8705e721b0, .b = 0x296fc317a513}, {.a = 0x22052b480d11, .b = 0xe19504c39461},
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{.a = 0xa7141147d430, .b = 0xff16014fefc7}, {.a = 0x8a8d88151a00, .b = 0x038b5f9b5a2a},
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{.a = 0xb27addfb64b0, .b = 0x152fd0c420a7}, {.a = 0x7259fa0197c6, .b = 0x5583698df085},
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};
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static bool plantain_get_card_config(PlantainCardConfig* config, MfClassicType type) {
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bool success = true;
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if(type == MfClassicType1k) {
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config->data_sector = 8;
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config->keys = plantain_1k_keys;
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} else if(type == MfClassicType4k) {
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config->data_sector = 8;
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config->keys = plantain_4k_keys;
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} else {
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success = false;
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}
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return success;
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}
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static bool plantain_verify_type(Nfc* nfc, MfClassicType type) {
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bool verified = false;
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do {
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PlantainCardConfig cfg = {};
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if(!plantain_get_card_config(&cfg, type)) break;
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const uint8_t block_num = mf_classic_get_first_block_num_of_sector(cfg.data_sector);
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FURI_LOG_D(TAG, "Verifying sector %lu", cfg.data_sector);
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MfClassicKey key = {0};
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bit_lib_num_to_bytes_be(cfg.keys[cfg.data_sector].a, COUNT_OF(key.data), key.data);
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MfClassicAuthContext auth_context;
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MfClassicError error =
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mf_classic_poller_sync_auth(nfc, block_num, &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", block_num, 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 plantain_verify(Nfc* nfc) {
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return plantain_verify_type(nfc, MfClassicType1k) ||
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plantain_verify_type(nfc, MfClassicType4k);
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}
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static bool plantain_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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PlantainCardConfig cfg = {};
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if(!plantain_get_card_config(&cfg, data->type)) break;
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MfClassicDeviceKeys keys = {};
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for(size_t i = 0; i < mf_classic_get_total_sectors_num(data->type); i++) {
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bit_lib_num_to_bytes_be(cfg.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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bit_lib_num_to_bytes_be(cfg.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 == MfClassicErrorNotPresent) {
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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 = (error == MfClassicErrorNone);
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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 plantain_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 card type
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PlantainCardConfig cfg = {};
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if(!plantain_get_card_config(&cfg, data->type)) break;
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// Verify key
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const MfClassicSectorTrailer* sec_tr =
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mf_classic_get_sector_trailer_by_sector(data, cfg.data_sector);
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const uint64_t key =
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bit_lib_bytes_to_num_be(sec_tr->key_a.data, COUNT_OF(sec_tr->key_a.data));
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if(key != cfg.keys[cfg.data_sector].a) break;
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// Point to block 0 of sector 4, value 0
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const uint8_t* temp_ptr = data->block[16].data;
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// Read first 4 bytes of block 0 of sector 4 from last to first and convert them to uint32_t
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// 38 18 00 00 becomes 00 00 18 38, and equals to 6200 decimal
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uint32_t balance =
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((temp_ptr[3] << 24) | (temp_ptr[2] << 16) | (temp_ptr[1] << 8) | temp_ptr[0]) / 100;
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// Read card number
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// Point to block 0 of sector 0, value 0
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temp_ptr = data->block[0].data;
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// Read first 7 bytes of block 0 of sector 0 from last to first and convert them to uint64_t
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// 04 31 16 8A 23 5C 80 becomes 80 5C 23 8A 16 31 04, and equals to 36130104729284868 decimal
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uint8_t card_number_arr[7];
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for(size_t i = 0; i < 7; i++) {
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card_number_arr[i] = temp_ptr[6 - i];
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}
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// Copy card number to uint64_t
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uint64_t card_number = 0;
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for(size_t i = 0; i < 7; i++) {
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card_number = (card_number << 8) | card_number_arr[i];
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}
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furi_string_printf(
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parsed_data, "\e#Plantain\nN:%llu-\nBalance:%lu\n", card_number, balance);
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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 plantain_plugin = {
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.protocol = NfcProtocolMfClassic,
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.verify = plantain_verify,
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.read = plantain_read,
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.parse = plantain_parse,
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};
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/* Plugin descriptor to comply with basic plugin specification */
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static const FlipperAppPluginDescriptor plantain_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 = &plantain_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* plantain_plugin_ep() {
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return &plantain_plugin_descriptor;
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}
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