389 lines
15 KiB
C
389 lines
15 KiB
C
#include "star_line.h"
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#include "keeloq_common.h"
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#include "../subghz_keystore.h"
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#include <m-string.h>
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#include <m-array.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 "SubGhzProtocolStarLine"
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static const SubGhzBlockConst subghz_protocol_star_line_const = {
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.te_short = 250,
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.te_long = 500,
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.te_delta = 120,
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.min_count_bit_for_found = 64,
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};
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struct SubGhzProtocolDecoderStarLine {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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uint16_t header_count;
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SubGhzKeystore* keystore;
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const char* manufacture_name;
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};
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struct SubGhzProtocolEncoderStarLine {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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SubGhzBlockGeneric generic;
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};
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typedef enum {
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StarLineDecoderStepReset = 0,
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StarLineDecoderStepCheckPreambula,
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StarLineDecoderStepSaveDuration,
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StarLineDecoderStepCheckDuration,
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} StarLineDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_star_line_decoder = {
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.alloc = subghz_protocol_decoder_star_line_alloc,
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.free = subghz_protocol_decoder_star_line_free,
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.feed = subghz_protocol_decoder_star_line_feed,
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.reset = subghz_protocol_decoder_star_line_reset,
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.get_hash_data = subghz_protocol_decoder_star_line_get_hash_data,
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.serialize = subghz_protocol_decoder_star_line_serialize,
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.deserialize = subghz_protocol_decoder_star_line_deserialize,
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.get_string = subghz_protocol_decoder_star_line_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_star_line_encoder = {
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.alloc = NULL,
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.free = NULL,
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.deserialize = NULL,
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.stop = NULL,
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.yield = NULL,
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};
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const SubGhzProtocol subghz_protocol_star_line = {
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.name = SUBGHZ_PROTOCOL_STAR_LINE_NAME,
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.type = SubGhzProtocolTypeDynamic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable,
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.decoder = &subghz_protocol_star_line_decoder,
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.encoder = &subghz_protocol_star_line_encoder,
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};
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void* subghz_protocol_decoder_star_line_alloc(SubGhzEnvironment* environment) {
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SubGhzProtocolDecoderStarLine* instance = malloc(sizeof(SubGhzProtocolDecoderStarLine));
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instance->base.protocol = &subghz_protocol_star_line;
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instance->generic.protocol_name = instance->base.protocol->name;
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instance->keystore = subghz_environment_get_keystore(environment);
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return instance;
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}
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void subghz_protocol_decoder_star_line_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_star_line_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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instance->decoder.parser_step = StarLineDecoderStepReset;
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}
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void subghz_protocol_decoder_star_line_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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switch(instance->decoder.parser_step) {
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case StarLineDecoderStepReset:
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if(level) {
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if(DURATION_DIFF(duration, subghz_protocol_star_line_const.te_long * 2) <
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subghz_protocol_star_line_const.te_delta * 2) {
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instance->decoder.parser_step = StarLineDecoderStepCheckPreambula;
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instance->header_count++;
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} else if(instance->header_count > 4) {
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = StarLineDecoderStepCheckDuration;
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}
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} else {
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instance->header_count = 0;
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}
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break;
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case StarLineDecoderStepCheckPreambula:
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if((!level) && (DURATION_DIFF(duration, subghz_protocol_star_line_const.te_long * 2) <
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subghz_protocol_star_line_const.te_delta * 2)) {
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//Found Preambula
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instance->decoder.parser_step = StarLineDecoderStepReset;
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} else {
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instance->header_count = 0;
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instance->decoder.parser_step = StarLineDecoderStepReset;
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}
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break;
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case StarLineDecoderStepSaveDuration:
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if(level) {
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if(duration >= (subghz_protocol_star_line_const.te_long +
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subghz_protocol_star_line_const.te_delta)) {
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instance->decoder.parser_step = StarLineDecoderStepReset;
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if(instance->decoder.decode_count_bit >=
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subghz_protocol_star_line_const.min_count_bit_for_found) {
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if(instance->generic.data != instance->decoder.decode_data) {
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instance->generic.data = instance->decoder.decode_data;
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instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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if(instance->base.callback)
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instance->base.callback(&instance->base, instance->base.context);
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}
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}
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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instance->header_count = 0;
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break;
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} else {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = StarLineDecoderStepCheckDuration;
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}
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} else {
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instance->decoder.parser_step = StarLineDecoderStepReset;
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}
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break;
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case StarLineDecoderStepCheckDuration:
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if(!level) {
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if((DURATION_DIFF(instance->decoder.te_last, subghz_protocol_star_line_const.te_short) <
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subghz_protocol_star_line_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_star_line_const.te_short) <
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subghz_protocol_star_line_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = StarLineDecoderStepSaveDuration;
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} else if(
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(DURATION_DIFF(instance->decoder.te_last, subghz_protocol_star_line_const.te_long) <
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subghz_protocol_star_line_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_star_line_const.te_long) <
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subghz_protocol_star_line_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = StarLineDecoderStepSaveDuration;
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} else {
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instance->decoder.parser_step = StarLineDecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = StarLineDecoderStepReset;
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}
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break;
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}
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}
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/**
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* Validation of decrypt data.
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* @param instance Pointer to a SubGhzBlockGeneric instance
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* @param decrypt Decrypd data
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* @param btn Button number, 4 bit
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* @param end_serial decrement the last 10 bits of the serial number
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* @return true On success
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*/
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static inline bool subghz_protocol_star_line_check_decrypt(
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SubGhzBlockGeneric* instance,
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uint32_t decrypt,
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uint8_t btn,
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uint32_t end_serial) {
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furi_assert(instance);
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if((decrypt >> 24 == btn) && ((((uint16_t)(decrypt >> 16)) & 0x00FF) == end_serial)) {
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instance->cnt = decrypt & 0x0000FFFF;
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return true;
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}
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return false;
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}
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/**
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* Checking the accepted code against the database manafacture key
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* @param instance Pointer to a SubGhzBlockGeneric* instance
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* @param fix Fix part of the parcel
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* @param hop Hop encrypted part of the parcel
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* @param keystore Pointer to a SubGhzKeystore* instance
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* @param manufacture_name
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* @return true on successful search
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*/
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static uint8_t subghz_protocol_star_line_check_remote_controller_selector(
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SubGhzBlockGeneric* instance,
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uint32_t fix,
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uint32_t hop,
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SubGhzKeystore* keystore,
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const char** manufacture_name) {
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uint16_t end_serial = (uint16_t)(fix & 0xFF);
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uint8_t btn = (uint8_t)(fix >> 24);
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uint32_t decrypt = 0;
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uint64_t man_normal_learning;
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for
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M_EACH(manufacture_code, *subghz_keystore_get_data(keystore), SubGhzKeyArray_t) {
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switch(manufacture_code->type) {
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case KEELOQ_LEARNING_SIMPLE:
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//Simple Learning
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, manufacture_code->key);
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if(subghz_protocol_star_line_check_decrypt(instance, decrypt, btn, end_serial)) {
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*manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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break;
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case KEELOQ_LEARNING_NORMAL:
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// Normal_Learning
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// https://phreakerclub.com/forum/showpost.php?p=43557&postcount=37
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man_normal_learning =
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subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_normal_learning);
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if(subghz_protocol_star_line_check_decrypt(instance, decrypt, btn, end_serial)) {
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*manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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break;
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case KEELOQ_LEARNING_UNKNOWN:
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// Simple Learning
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, manufacture_code->key);
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if(subghz_protocol_star_line_check_decrypt(instance, decrypt, btn, end_serial)) {
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*manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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// Check for mirrored man
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uint64_t man_rev = 0;
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uint64_t man_rev_byte = 0;
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for(uint8_t i = 0; i < 64; i += 8) {
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man_rev_byte = (uint8_t)(manufacture_code->key >> i);
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man_rev = man_rev | man_rev_byte << (56 - i);
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}
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_rev);
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if(subghz_protocol_star_line_check_decrypt(instance, decrypt, btn, end_serial)) {
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*manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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//###########################
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// Normal_Learning
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// https://phreakerclub.com/forum/showpost.php?p=43557&postcount=37
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man_normal_learning =
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subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_normal_learning);
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if(subghz_protocol_star_line_check_decrypt(instance, decrypt, btn, end_serial)) {
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*manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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man_normal_learning = subghz_protocol_keeloq_common_normal_learning(fix, man_rev);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_normal_learning);
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if(subghz_protocol_star_line_check_decrypt(instance, decrypt, btn, end_serial)) {
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*manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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break;
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}
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}
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*manufacture_name = "Unknown";
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instance->cnt = 0;
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return 0;
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}
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/**
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* Analysis of received data
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* @param instance Pointer to a SubGhzBlockGeneric* instance
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* @param keystore Pointer to a SubGhzKeystore* instance
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* @param manufacture_name
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*/
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static void subghz_protocol_star_line_check_remote_controller(
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SubGhzBlockGeneric* instance,
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SubGhzKeystore* keystore,
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const char** manufacture_name) {
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uint64_t key = subghz_protocol_blocks_reverse_key(instance->data, instance->data_count_bit);
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uint32_t key_fix = key >> 32;
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uint32_t key_hop = key & 0x00000000ffffffff;
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subghz_protocol_star_line_check_remote_controller_selector(
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instance, key_fix, key_hop, keystore, manufacture_name);
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instance->serial = key_fix & 0x00FFFFFF;
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instance->btn = key_fix >> 24;
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}
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uint8_t subghz_protocol_decoder_star_line_get_hash_data(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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return subghz_protocol_blocks_get_hash_data(
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&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
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}
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bool subghz_protocol_decoder_star_line_serialize(
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void* context,
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FlipperFormat* flipper_format,
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uint32_t frequency,
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FuriHalSubGhzPreset preset) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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subghz_protocol_star_line_check_remote_controller(
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&instance->generic, instance->keystore, &instance->manufacture_name);
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bool res =
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subghz_block_generic_serialize(&instance->generic, flipper_format, frequency, preset);
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if(res && !flipper_format_write_string_cstr(
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flipper_format, "Manufacture", instance->manufacture_name)) {
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FURI_LOG_E(TAG, "Unable to add manufacture name");
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res = false;
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}
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return res;
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}
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bool subghz_protocol_decoder_star_line_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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bool res = false;
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do {
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if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
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FURI_LOG_E(TAG, "Deserialize error");
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break;
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}
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res = true;
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} while(false);
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return res;
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}
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void subghz_protocol_decoder_star_line_get_string(void* context, string_t output) {
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furi_assert(context);
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SubGhzProtocolDecoderStarLine* instance = context;
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subghz_protocol_star_line_check_remote_controller(
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&instance->generic, instance->keystore, &instance->manufacture_name);
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uint32_t code_found_hi = instance->generic.data >> 32;
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uint32_t code_found_lo = instance->generic.data & 0x00000000ffffffff;
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uint64_t code_found_reverse = subghz_protocol_blocks_reverse_key(
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instance->generic.data, instance->generic.data_count_bit);
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uint32_t code_found_reverse_hi = code_found_reverse >> 32;
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uint32_t code_found_reverse_lo = code_found_reverse & 0x00000000ffffffff;
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string_cat_printf(
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output,
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"%s %dbit\r\n"
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"Key:%08lX%08lX\r\n"
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"Fix:0x%08lX Cnt:%04X\r\n"
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"Hop:0x%08lX Btn:%02lX\r\n"
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"MF:%s\r\n"
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"Sn:0x%07lX \r\n",
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instance->generic.protocol_name,
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instance->generic.data_count_bit,
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code_found_hi,
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code_found_lo,
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code_found_reverse_hi,
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instance->generic.cnt,
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code_found_reverse_lo,
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instance->generic.btn,
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instance->manufacture_name,
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instance->generic.serial);
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}
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