mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-18 16:53:45 +00:00
809 lines
28 KiB
C
809 lines
28 KiB
C
#include "alutech_at_4n.h"
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#include "../blocks/const.h"
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#include "../blocks/decoder.h"
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#include "../blocks/encoder.h"
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#include "../blocks/generic.h"
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#include "../blocks/math.h"
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#define TAG "SubGhzProtocoAlutech_at_4n"
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#define SUBGHZ_NO_ALUTECH_AT_4N_RAINBOW_TABLE 0xFFFFFFFF
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static const SubGhzBlockConst subghz_protocol_alutech_at_4n_const = {
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.te_short = 400,
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.te_long = 800,
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.te_delta = 140,
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.min_count_bit_for_found = 72,
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};
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struct SubGhzProtocolDecoderAlutech_at_4n {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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uint64_t data;
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uint32_t crc;
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uint16_t header_count;
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const char* alutech_at_4n_rainbow_table_file_name;
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};
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struct SubGhzProtocolEncoderAlutech_at_4n {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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SubGhzBlockGeneric generic;
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const char* alutech_at_4n_rainbow_table_file_name;
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uint32_t crc;
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};
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typedef enum {
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Alutech_at_4nDecoderStepReset = 0,
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Alutech_at_4nDecoderStepCheckPreambula,
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Alutech_at_4nDecoderStepSaveDuration,
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Alutech_at_4nDecoderStepCheckDuration,
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} Alutech_at_4nDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_alutech_at_4n_decoder = {
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.alloc = subghz_protocol_decoder_alutech_at_4n_alloc,
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.free = subghz_protocol_decoder_alutech_at_4n_free,
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.feed = subghz_protocol_decoder_alutech_at_4n_feed,
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.reset = subghz_protocol_decoder_alutech_at_4n_reset,
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.get_hash_data = subghz_protocol_decoder_alutech_at_4n_get_hash_data,
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.serialize = subghz_protocol_decoder_alutech_at_4n_serialize,
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.deserialize = subghz_protocol_decoder_alutech_at_4n_deserialize,
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.get_string = subghz_protocol_decoder_alutech_at_4n_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_alutech_at_4n_encoder = {
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.alloc = subghz_protocol_encoder_alutech_at_4n_alloc,
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.free = subghz_protocol_encoder_alutech_at_4n_free,
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.deserialize = subghz_protocol_encoder_alutech_at_4n_deserialize,
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.stop = subghz_protocol_encoder_alutech_at_4n_stop,
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.yield = subghz_protocol_encoder_alutech_at_4n_yield,
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};
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const SubGhzProtocol subghz_protocol_alutech_at_4n = {
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.name = SUBGHZ_PROTOCOL_ALUTECH_AT_4N_NAME,
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.type = SubGhzProtocolTypeDynamic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
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SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
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.decoder = &subghz_protocol_alutech_at_4n_decoder,
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.encoder = &subghz_protocol_alutech_at_4n_encoder,
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};
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static uint8_t al_btn_temp_id;
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static uint8_t al_btn_temp_id_original;
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void alutech_set_btn(uint8_t b) {
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al_btn_temp_id = b;
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}
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uint8_t alutech_get_original_btn() {
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return al_btn_temp_id_original;
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}
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uint8_t alutech_get_custom_btn() {
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return al_btn_temp_id;
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}
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void alutech_reset_original_btn() {
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al_btn_temp_id_original = 0;
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}
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void* subghz_protocol_encoder_alutech_at_4n_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolEncoderAlutech_at_4n* instance =
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malloc(sizeof(SubGhzProtocolEncoderAlutech_at_4n));
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instance->base.protocol = &subghz_protocol_alutech_at_4n;
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instance->generic.protocol_name = instance->base.protocol->name;
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instance->encoder.repeat = 10;
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instance->encoder.size_upload = 512;
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instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
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instance->encoder.is_running = false;
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instance->alutech_at_4n_rainbow_table_file_name =
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subghz_environment_get_alutech_at_4n_rainbow_table_file_name(environment);
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if(instance->alutech_at_4n_rainbow_table_file_name) {
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FURI_LOG_I(
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TAG, "Loading rainbow table from %s", instance->alutech_at_4n_rainbow_table_file_name);
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}
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return instance;
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}
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void subghz_protocol_encoder_alutech_at_4n_free(void* context) {
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furi_assert(context);
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SubGhzProtocolEncoderAlutech_at_4n* instance = context;
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free(instance->encoder.upload);
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free(instance);
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}
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void subghz_protocol_encoder_alutech_at_4n_stop(void* context) {
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SubGhzProtocolEncoderAlutech_at_4n* instance = context;
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instance->encoder.is_running = false;
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}
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LevelDuration subghz_protocol_encoder_alutech_at_4n_yield(void* context) {
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SubGhzProtocolEncoderAlutech_at_4n* instance = context;
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if(instance->encoder.repeat == 0 || !instance->encoder.is_running) {
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instance->encoder.is_running = false;
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return level_duration_reset();
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}
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LevelDuration ret = instance->encoder.upload[instance->encoder.front];
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if(++instance->encoder.front == instance->encoder.size_upload) {
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instance->encoder.repeat--;
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instance->encoder.front = 0;
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}
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return ret;
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}
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/**
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* Read bytes from rainbow table
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* @param file_name Full path to rainbow table the file
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* @param number_alutech_at_4n_magic_data number in the array
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* @return alutech_at_4n_magic_data
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*/
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static uint32_t subghz_protocol_alutech_at_4n_get_magic_data_in_file(
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const char* file_name,
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uint8_t number_alutech_at_4n_magic_data) {
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if(!strcmp(file_name, "")) return SUBGHZ_NO_ALUTECH_AT_4N_RAINBOW_TABLE;
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uint8_t buffer[sizeof(uint32_t)] = {0};
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uint32_t address = number_alutech_at_4n_magic_data * sizeof(uint32_t);
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uint32_t alutech_at_4n_magic_data = 0;
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if(subghz_keystore_raw_get_data(file_name, address, buffer, sizeof(uint32_t))) {
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for(size_t i = 0; i < sizeof(uint32_t); i++) {
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alutech_at_4n_magic_data = (alutech_at_4n_magic_data << 8) | buffer[i];
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}
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} else {
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alutech_at_4n_magic_data = SUBGHZ_NO_ALUTECH_AT_4N_RAINBOW_TABLE;
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}
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return alutech_at_4n_magic_data;
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}
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static uint8_t subghz_protocol_alutech_at_4n_crc(uint64_t data) {
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uint8_t* p = (uint8_t*)&data;
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uint8_t crc = 0xff;
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for(uint8_t y = 0; y < 8; y++) {
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crc = crc ^ p[y];
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for(uint8_t i = 0; i < 8; i++) {
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if((crc & 0x80) != 0) {
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crc <<= 1;
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crc ^= 0x31;
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} else {
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crc <<= 1;
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}
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}
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}
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return crc;
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}
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static uint8_t subghz_protocol_alutech_at_4n_decrypt_data_crc(uint8_t data) {
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uint8_t crc = data;
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for(uint8_t i = 0; i < 8; i++) {
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if((crc & 0x80) != 0) {
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crc <<= 1;
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crc ^= 0x31;
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} else {
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crc <<= 1;
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}
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}
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return ~crc;
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}
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static uint64_t subghz_protocol_alutech_at_4n_decrypt(uint64_t data, const char* file_name) {
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uint8_t* p = (uint8_t*)&data;
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uint32_t data1 = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
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uint32_t data2 = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
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uint32_t data3 = 0;
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uint32_t magic_data[] = {
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 0),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 1),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 2),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 3),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 4),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 5)};
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uint32_t i = magic_data[0];
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do {
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data2 = data2 -
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((magic_data[1] + (data1 << 4)) ^ ((magic_data[2] + (data1 >> 5)) ^ (data1 + i)));
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data3 = data2 + i;
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i += magic_data[3];
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data1 =
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data1 - ((magic_data[4] + (data2 << 4)) ^ ((magic_data[5] + (data2 >> 5)) ^ data3));
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} while(i != 0);
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p[0] = (uint8_t)(data1 >> 24);
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p[1] = (uint8_t)(data1 >> 16);
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p[3] = (uint8_t)data1;
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p[4] = (uint8_t)(data2 >> 24);
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p[5] = (uint8_t)(data2 >> 16);
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p[2] = (uint8_t)(data1 >> 8);
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p[6] = (uint8_t)(data2 >> 8);
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p[7] = (uint8_t)data2;
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return data;
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}
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static uint64_t subghz_protocol_alutech_at_4n_encrypt(uint64_t data, const char* file_name) {
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uint8_t* p = (uint8_t*)&data;
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uint32_t data1 = 0;
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uint32_t data2 = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
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uint32_t data3 = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
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uint32_t magic_data[] = {
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 6),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 4),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 5),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 1),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 2),
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subghz_protocol_alutech_at_4n_get_magic_data_in_file(file_name, 0)};
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do {
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data1 = data1 + magic_data[0];
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data2 = data2 + ((magic_data[1] + (data3 << 4)) ^
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((magic_data[2] + (data3 >> 5)) ^ (data1 + data3)));
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data3 = data3 + ((magic_data[3] + (data2 << 4)) ^
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((magic_data[4] + (data2 >> 5)) ^ (data1 + data2)));
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} while(data1 != magic_data[5]);
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p[0] = (uint8_t)(data2 >> 24);
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p[1] = (uint8_t)(data2 >> 16);
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p[3] = (uint8_t)data2;
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p[4] = (uint8_t)(data3 >> 24);
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p[5] = (uint8_t)(data3 >> 16);
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p[2] = (uint8_t)(data2 >> 8);
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p[6] = (uint8_t)(data3 >> 8);
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p[7] = (uint8_t)data3;
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return data;
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}
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static bool subghz_protocol_alutech_at_4n_gen_data(
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SubGhzProtocolEncoderAlutech_at_4n* instance,
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uint8_t btn) {
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uint64_t data = subghz_protocol_blocks_reverse_key(instance->generic.data, 64);
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data = subghz_protocol_alutech_at_4n_decrypt(
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data, instance->alutech_at_4n_rainbow_table_file_name);
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uint8_t crc = data >> 56;
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if(crc == subghz_protocol_alutech_at_4n_decrypt_data_crc((uint8_t)((data >> 8) & 0xFF))) {
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instance->generic.btn = (uint8_t)data & 0xFF;
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instance->generic.cnt = (uint16_t)(data >> 8) & 0xFFFF;
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instance->generic.serial = (uint32_t)(data >> 24) & 0xFFFFFFFF;
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}
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if(instance->generic.cnt < 0xFFFF) {
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if((instance->generic.cnt + furi_hal_subghz_get_rolling_counter_mult()) >= 0xFFFF) {
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instance->generic.cnt = 0;
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} else {
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instance->generic.cnt += furi_hal_subghz_get_rolling_counter_mult();
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}
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} else if(instance->generic.cnt >= 0xFFFF) {
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instance->generic.cnt = 0;
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}
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crc = subghz_protocol_alutech_at_4n_decrypt_data_crc((uint8_t)(instance->generic.cnt & 0xFF));
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data = (uint64_t)crc << 56 | (uint64_t)instance->generic.serial << 24 |
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(uint32_t)instance->generic.cnt << 8 | btn;
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data = subghz_protocol_alutech_at_4n_encrypt(
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data, instance->alutech_at_4n_rainbow_table_file_name);
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crc = subghz_protocol_alutech_at_4n_crc(data);
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instance->generic.data = subghz_protocol_blocks_reverse_key(data, 64);
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instance->crc = subghz_protocol_blocks_reverse_key(crc, 8);
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return true;
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}
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bool subghz_protocol_alutech_at_4n_create_data(
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void* context,
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FlipperFormat* flipper_format,
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uint32_t serial,
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uint8_t btn,
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uint16_t cnt,
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SubGhzRadioPreset* preset) {
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furi_assert(context);
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SubGhzProtocolEncoderAlutech_at_4n* instance = context;
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instance->generic.serial = serial;
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instance->generic.cnt = cnt;
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instance->generic.data_count_bit = 72;
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bool res = subghz_protocol_alutech_at_4n_gen_data(instance, btn);
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if(res) {
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res = subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
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}
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return res;
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}
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/**
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* Generating an upload from data.
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* @param instance Pointer to a SubGhzProtocolEncoderAlutech instance
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* @return true On success
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*/
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static bool subghz_protocol_encoder_alutech_at_4n_get_upload(
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SubGhzProtocolEncoderAlutech_at_4n* instance,
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uint8_t btn) {
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furi_assert(instance);
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// Save original button for later use
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if(al_btn_temp_id_original == 0) {
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al_btn_temp_id_original = btn;
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}
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// Set custom button
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if(al_btn_temp_id == 1) {
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switch(al_btn_temp_id_original) {
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case 0x11:
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btn = 0x22;
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break;
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case 0x22:
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btn = 0x11;
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break;
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case 0xFF:
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btn = 0x11;
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break;
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case 0x44:
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btn = 0x11;
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break;
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case 0x33:
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btn = 0x11;
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break;
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default:
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break;
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}
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}
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if(al_btn_temp_id == 2) {
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switch(al_btn_temp_id_original) {
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case 0x11:
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btn = 0x44;
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break;
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case 0x22:
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btn = 0x44;
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break;
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case 0xFF:
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btn = 0x44;
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break;
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case 0x44:
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btn = 0xFF;
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break;
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case 0x33:
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btn = 0x44;
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break;
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default:
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break;
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}
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}
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if(al_btn_temp_id == 3) {
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switch(al_btn_temp_id_original) {
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case 0x11:
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btn = 0x33;
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break;
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case 0x22:
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btn = 0x33;
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break;
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case 0xFF:
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btn = 0x33;
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break;
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case 0x44:
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btn = 0x33;
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break;
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case 0x33:
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btn = 0x22;
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break;
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default:
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break;
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}
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}
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if(al_btn_temp_id == 4) {
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switch(al_btn_temp_id_original) {
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case 0x11:
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btn = 0xFF;
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break;
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case 0x22:
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btn = 0xFF;
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break;
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case 0xFF:
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btn = 0x22;
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break;
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case 0x44:
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btn = 0x22;
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break;
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case 0x33:
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btn = 0xFF;
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break;
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default:
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break;
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}
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}
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if((al_btn_temp_id == 0) && (al_btn_temp_id_original != 0)) {
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btn = al_btn_temp_id_original;
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}
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//gen new key
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if(subghz_protocol_alutech_at_4n_gen_data(instance, btn)) {
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//ToDo if you need to add a callback to automatically update the data on the display
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} else {
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return false;
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}
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size_t index = 0;
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// Send preambula
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for(uint8_t i = 0; i < 12; ++i) {
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instance->encoder.upload[index++] =
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level_duration_make(true, (uint32_t)subghz_protocol_alutech_at_4n_const.te_short); // 1
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instance->encoder.upload[index++] = level_duration_make(
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|
false, (uint32_t)subghz_protocol_alutech_at_4n_const.te_short); // 0
|
|
}
|
|
|
|
instance->encoder.upload[index - 1].duration +=
|
|
(uint32_t)subghz_protocol_alutech_at_4n_const.te_short * 9;
|
|
|
|
// Send key data
|
|
for(uint8_t i = 64; i > 0; --i) {
|
|
if(bit_read(instance->generic.data, i - 1)) {
|
|
//1
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(true, (uint32_t)subghz_protocol_alutech_at_4n_const.te_short);
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(false, (uint32_t)subghz_protocol_alutech_at_4n_const.te_long);
|
|
} else {
|
|
//0
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(true, (uint32_t)subghz_protocol_alutech_at_4n_const.te_long);
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(false, (uint32_t)subghz_protocol_alutech_at_4n_const.te_short);
|
|
}
|
|
}
|
|
// Send crc
|
|
for(uint8_t i = 8; i > 0; --i) {
|
|
if(bit_read(instance->crc, i - 1)) {
|
|
//1
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(true, (uint32_t)subghz_protocol_alutech_at_4n_const.te_short);
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(false, (uint32_t)subghz_protocol_alutech_at_4n_const.te_long);
|
|
} else {
|
|
//0
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(true, (uint32_t)subghz_protocol_alutech_at_4n_const.te_long);
|
|
instance->encoder.upload[index++] =
|
|
level_duration_make(false, (uint32_t)subghz_protocol_alutech_at_4n_const.te_short);
|
|
}
|
|
}
|
|
// Inter-frame silence
|
|
instance->encoder.upload[index - 1].duration +=
|
|
(uint32_t)subghz_protocol_alutech_at_4n_const.te_long * 20;
|
|
|
|
size_t size_upload = index;
|
|
|
|
if(size_upload > instance->encoder.size_upload) {
|
|
FURI_LOG_E(TAG, "Size upload exceeds allocated encoder buffer.");
|
|
return false;
|
|
} else {
|
|
instance->encoder.size_upload = size_upload;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
SubGhzProtocolStatus subghz_protocol_encoder_alutech_at_4n_deserialize(
|
|
void* context,
|
|
FlipperFormat* flipper_format) {
|
|
furi_assert(context);
|
|
SubGhzProtocolEncoderAlutech_at_4n* instance = context;
|
|
SubGhzProtocolStatus res = SubGhzProtocolStatusError;
|
|
do {
|
|
if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
|
|
FURI_LOG_E(TAG, "Deserialize error");
|
|
break;
|
|
}
|
|
|
|
//optional parameter parameter
|
|
flipper_format_read_uint32(
|
|
flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
|
|
|
|
subghz_protocol_encoder_alutech_at_4n_get_upload(instance, instance->generic.btn);
|
|
|
|
if(!flipper_format_rewind(flipper_format)) {
|
|
FURI_LOG_E(TAG, "Rewind error");
|
|
break;
|
|
}
|
|
uint8_t key_data[sizeof(uint64_t)] = {0};
|
|
for(size_t i = 0; i < sizeof(uint64_t); i++) {
|
|
key_data[sizeof(uint64_t) - i - 1] = (instance->generic.data >> i * 8) & 0xFF;
|
|
}
|
|
if(!flipper_format_update_hex(flipper_format, "Key", key_data, sizeof(uint64_t))) {
|
|
FURI_LOG_E(TAG, "Unable to add Key");
|
|
break;
|
|
}
|
|
if(!flipper_format_rewind(flipper_format)) {
|
|
FURI_LOG_E(TAG, "Rewind error");
|
|
break;
|
|
}
|
|
if(!flipper_format_update_uint32(flipper_format, "CRC", &instance->crc, 1)) {
|
|
FURI_LOG_E(TAG, "Unable to add CRC");
|
|
break;
|
|
}
|
|
|
|
instance->encoder.is_running = true;
|
|
|
|
res = SubGhzProtocolStatusOk;
|
|
} while(false);
|
|
|
|
return res;
|
|
}
|
|
|
|
void* subghz_protocol_decoder_alutech_at_4n_alloc(SubGhzEnvironment* environment) {
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance =
|
|
malloc(sizeof(SubGhzProtocolDecoderAlutech_at_4n));
|
|
instance->base.protocol = &subghz_protocol_alutech_at_4n;
|
|
instance->generic.protocol_name = instance->base.protocol->name;
|
|
instance->alutech_at_4n_rainbow_table_file_name =
|
|
subghz_environment_get_alutech_at_4n_rainbow_table_file_name(environment);
|
|
if(instance->alutech_at_4n_rainbow_table_file_name) {
|
|
FURI_LOG_I(
|
|
TAG, "Loading rainbow table from %s", instance->alutech_at_4n_rainbow_table_file_name);
|
|
}
|
|
return instance;
|
|
}
|
|
|
|
void subghz_protocol_decoder_alutech_at_4n_free(void* context) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
instance->alutech_at_4n_rainbow_table_file_name = NULL;
|
|
free(instance);
|
|
}
|
|
|
|
void subghz_protocol_decoder_alutech_at_4n_reset(void* context) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepReset;
|
|
}
|
|
|
|
void subghz_protocol_decoder_alutech_at_4n_feed(void* context, bool level, uint32_t duration) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
|
|
switch(instance->decoder.parser_step) {
|
|
case Alutech_at_4nDecoderStepReset:
|
|
if((level) && DURATION_DIFF(duration, subghz_protocol_alutech_at_4n_const.te_short) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta) {
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepCheckPreambula;
|
|
instance->header_count++;
|
|
}
|
|
break;
|
|
case Alutech_at_4nDecoderStepCheckPreambula:
|
|
if((!level) && (DURATION_DIFF(duration, subghz_protocol_alutech_at_4n_const.te_short) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta)) {
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepReset;
|
|
break;
|
|
}
|
|
if((instance->header_count > 2) &&
|
|
(DURATION_DIFF(duration, subghz_protocol_alutech_at_4n_const.te_short * 10) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta * 10)) {
|
|
// Found header
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepSaveDuration;
|
|
instance->decoder.decode_data = 0;
|
|
instance->data = 0;
|
|
instance->decoder.decode_count_bit = 0;
|
|
} else {
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepReset;
|
|
instance->header_count = 0;
|
|
}
|
|
break;
|
|
case Alutech_at_4nDecoderStepSaveDuration:
|
|
if(level) {
|
|
instance->decoder.te_last = duration;
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepCheckDuration;
|
|
}
|
|
break;
|
|
case Alutech_at_4nDecoderStepCheckDuration:
|
|
if(!level) {
|
|
if(duration >= ((uint32_t)subghz_protocol_alutech_at_4n_const.te_short * 2 +
|
|
subghz_protocol_alutech_at_4n_const.te_delta)) {
|
|
//add last bit
|
|
if(DURATION_DIFF(
|
|
instance->decoder.te_last, subghz_protocol_alutech_at_4n_const.te_short) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta) {
|
|
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
|
|
} else if(
|
|
DURATION_DIFF(
|
|
instance->decoder.te_last, subghz_protocol_alutech_at_4n_const.te_long) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta * 2) {
|
|
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
|
|
}
|
|
|
|
// Found end TX
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepReset;
|
|
if(instance->decoder.decode_count_bit ==
|
|
subghz_protocol_alutech_at_4n_const.min_count_bit_for_found) {
|
|
if(instance->generic.data != instance->data) {
|
|
instance->generic.data = instance->data;
|
|
|
|
instance->generic.data_count_bit = instance->decoder.decode_count_bit;
|
|
instance->crc = instance->decoder.decode_data;
|
|
|
|
if(instance->base.callback)
|
|
instance->base.callback(&instance->base, instance->base.context);
|
|
}
|
|
instance->decoder.decode_data = 0;
|
|
instance->data = 0;
|
|
instance->decoder.decode_count_bit = 0;
|
|
instance->header_count = 0;
|
|
}
|
|
break;
|
|
} else if(
|
|
(DURATION_DIFF(
|
|
instance->decoder.te_last, subghz_protocol_alutech_at_4n_const.te_short) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta) &&
|
|
(DURATION_DIFF(duration, subghz_protocol_alutech_at_4n_const.te_long) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta * 2)) {
|
|
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
|
|
if(instance->decoder.decode_count_bit == 64) {
|
|
instance->data = instance->decoder.decode_data;
|
|
instance->decoder.decode_data = 0;
|
|
}
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepSaveDuration;
|
|
} else if(
|
|
(DURATION_DIFF(
|
|
instance->decoder.te_last, subghz_protocol_alutech_at_4n_const.te_long) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta * 2) &&
|
|
(DURATION_DIFF(duration, subghz_protocol_alutech_at_4n_const.te_short) <
|
|
subghz_protocol_alutech_at_4n_const.te_delta)) {
|
|
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
|
|
if(instance->decoder.decode_count_bit == 64) {
|
|
instance->data = instance->decoder.decode_data;
|
|
instance->decoder.decode_data = 0;
|
|
}
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepSaveDuration;
|
|
} else {
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepReset;
|
|
instance->header_count = 0;
|
|
}
|
|
} else {
|
|
instance->decoder.parser_step = Alutech_at_4nDecoderStepReset;
|
|
instance->header_count = 0;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Analysis of received data
|
|
* @param instance Pointer to a SubGhzBlockGeneric* instance
|
|
* @param file_name Full path to rainbow table the file
|
|
*/
|
|
static void subghz_protocol_alutech_at_4n_remote_controller(
|
|
SubGhzBlockGeneric* instance,
|
|
uint8_t crc,
|
|
const char* file_name) {
|
|
/**
|
|
* Message format 72bit LSB first
|
|
* data crc
|
|
* XXXXXXXXXXXXXXXX CC
|
|
*
|
|
* For analysis, you need to turn the package MSB
|
|
* in decoded messages format
|
|
*
|
|
* crc1 serial cnt key
|
|
* cc SSSSSSSS XXxx BB
|
|
*
|
|
* crc1 is calculated from the lower part of cnt
|
|
* key 1=0xff, 2=0x11, 3=0x22, 4=0x33, 5=0x44
|
|
*
|
|
*/
|
|
|
|
bool status = false;
|
|
uint64_t data = subghz_protocol_blocks_reverse_key(instance->data, 64);
|
|
crc = subghz_protocol_blocks_reverse_key(crc, 8);
|
|
|
|
if(crc == subghz_protocol_alutech_at_4n_crc(data)) {
|
|
data = subghz_protocol_alutech_at_4n_decrypt(data, file_name);
|
|
status = true;
|
|
}
|
|
|
|
if(status && ((uint8_t)(data >> 56) ==
|
|
subghz_protocol_alutech_at_4n_decrypt_data_crc((uint8_t)((data >> 8) & 0xFF)))) {
|
|
instance->btn = (uint8_t)data & 0xFF;
|
|
instance->cnt = (uint16_t)(data >> 8) & 0xFFFF;
|
|
instance->serial = (uint32_t)(data >> 24) & 0xFFFFFFFF;
|
|
}
|
|
|
|
if(!status) {
|
|
instance->btn = 0;
|
|
instance->cnt = 0;
|
|
instance->serial = 0;
|
|
}
|
|
|
|
// Save original button for later use
|
|
if(al_btn_temp_id_original == 0) {
|
|
al_btn_temp_id_original = instance->btn;
|
|
}
|
|
}
|
|
|
|
uint8_t subghz_protocol_decoder_alutech_at_4n_get_hash_data(void* context) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
return (uint8_t)instance->crc;
|
|
}
|
|
|
|
SubGhzProtocolStatus subghz_protocol_decoder_alutech_at_4n_serialize(
|
|
void* context,
|
|
FlipperFormat* flipper_format,
|
|
SubGhzRadioPreset* preset) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
SubGhzProtocolStatus res =
|
|
subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
|
|
if((res == SubGhzProtocolStatusOk) &&
|
|
!flipper_format_write_uint32(flipper_format, "CRC", &instance->crc, 1)) {
|
|
FURI_LOG_E(TAG, "Unable to add CRC");
|
|
res = SubGhzProtocolStatusErrorParserOthers;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
SubGhzProtocolStatus subghz_protocol_decoder_alutech_at_4n_deserialize(
|
|
void* context,
|
|
FlipperFormat* flipper_format) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
|
|
do {
|
|
ret = subghz_block_generic_deserialize_check_count_bit(
|
|
&instance->generic,
|
|
flipper_format,
|
|
subghz_protocol_alutech_at_4n_const.min_count_bit_for_found);
|
|
if(ret != SubGhzProtocolStatusOk) {
|
|
break;
|
|
}
|
|
if(!flipper_format_rewind(flipper_format)) {
|
|
FURI_LOG_E(TAG, "Rewind error");
|
|
ret = SubGhzProtocolStatusErrorParserOthers;
|
|
break;
|
|
}
|
|
if(!flipper_format_read_uint32(flipper_format, "CRC", (uint32_t*)&instance->crc, 1)) {
|
|
FURI_LOG_E(TAG, "Missing CRC");
|
|
ret = SubGhzProtocolStatusErrorParserOthers;
|
|
break;
|
|
}
|
|
} while(false);
|
|
return ret;
|
|
}
|
|
|
|
void subghz_protocol_decoder_alutech_at_4n_get_string(void* context, FuriString* output) {
|
|
furi_assert(context);
|
|
SubGhzProtocolDecoderAlutech_at_4n* instance = context;
|
|
subghz_protocol_alutech_at_4n_remote_controller(
|
|
&instance->generic, instance->crc, instance->alutech_at_4n_rainbow_table_file_name);
|
|
uint32_t code_found_hi = instance->generic.data >> 32;
|
|
uint32_t code_found_lo = instance->generic.data & 0x00000000ffffffff;
|
|
|
|
furi_string_cat_printf(
|
|
output,
|
|
"%s\r\n"
|
|
"Key:0x%08lX%08lX\nCRC:%02X %dbit\r\n"
|
|
"Sn:0x%08lX Btn:0x%01X\r\n"
|
|
"Cnt:0x%04lX\r\n",
|
|
instance->generic.protocol_name,
|
|
code_found_hi,
|
|
code_found_lo,
|
|
(uint8_t)instance->crc,
|
|
instance->generic.data_count_bit,
|
|
instance->generic.serial,
|
|
instance->generic.btn,
|
|
instance->generic.cnt);
|
|
}
|