mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-24 05:23:06 +00:00
333 lines
12 KiB
C
333 lines
12 KiB
C
#include "came_atomo.h"
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#include <lib/toolbox/manchester_decoder.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 "SubGhzProtocoCameAtomo"
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static const SubGhzBlockConst subghz_protocol_came_atomo_const = {
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.te_short = 600,
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.te_long = 1200,
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.te_delta = 250,
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.min_count_bit_for_found = 62,
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};
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struct SubGhzProtocolDecoderCameAtomo {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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ManchesterState manchester_saved_state;
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};
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struct SubGhzProtocolEncoderCameAtomo {
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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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CameAtomoDecoderStepReset = 0,
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CameAtomoDecoderStepDecoderData,
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} CameAtomoDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_came_atomo_decoder = {
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.alloc = subghz_protocol_decoder_came_atomo_alloc,
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.free = subghz_protocol_decoder_came_atomo_free,
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.feed = subghz_protocol_decoder_came_atomo_feed,
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.reset = subghz_protocol_decoder_came_atomo_reset,
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.get_hash_data = subghz_protocol_decoder_came_atomo_get_hash_data,
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.serialize = subghz_protocol_decoder_came_atomo_serialize,
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.deserialize = subghz_protocol_decoder_came_atomo_deserialize,
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.get_string = subghz_protocol_decoder_came_atomo_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_came_atomo_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_came_atomo = {
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.name = SUBGHZ_PROTOCOL_CAME_ATOMO_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_came_atomo_decoder,
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.encoder = &subghz_protocol_came_atomo_encoder,
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};
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void* subghz_protocol_decoder_came_atomo_alloc(SubGhzEnvironment* environment) {
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SubGhzProtocolDecoderCameAtomo* instance = malloc(sizeof(SubGhzProtocolDecoderCameAtomo));
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instance->base.protocol = &subghz_protocol_came_atomo;
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instance->generic.protocol_name = instance->base.protocol->name;
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return instance;
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}
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void subghz_protocol_decoder_came_atomo_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderCameAtomo* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_came_atomo_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderCameAtomo* instance = context;
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instance->decoder.parser_step = CameAtomoDecoderStepReset;
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventReset,
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&instance->manchester_saved_state,
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NULL);
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}
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void subghz_protocol_decoder_came_atomo_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderCameAtomo* instance = context;
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ManchesterEvent event = ManchesterEventReset;
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switch(instance->decoder.parser_step) {
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case CameAtomoDecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, subghz_protocol_came_atomo_const.te_long * 60) <
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subghz_protocol_came_atomo_const.te_delta * 40)) {
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//Found header CAME
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instance->decoder.parser_step = CameAtomoDecoderStepDecoderData;
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 1;
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventReset,
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&instance->manchester_saved_state,
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NULL);
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventShortLow,
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&instance->manchester_saved_state,
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NULL);
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}
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break;
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case CameAtomoDecoderStepDecoderData:
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if(!level) {
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if(DURATION_DIFF(duration, subghz_protocol_came_atomo_const.te_short) <
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subghz_protocol_came_atomo_const.te_delta) {
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event = ManchesterEventShortLow;
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} else if(
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DURATION_DIFF(duration, subghz_protocol_came_atomo_const.te_long) <
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subghz_protocol_came_atomo_const.te_delta) {
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event = ManchesterEventLongLow;
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} else if(
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duration >= ((uint32_t)subghz_protocol_came_atomo_const.te_long * 2 +
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subghz_protocol_came_atomo_const.te_delta)) {
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if(instance->decoder.decode_count_bit ==
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subghz_protocol_came_atomo_const.min_count_bit_for_found) {
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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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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 1;
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventReset,
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&instance->manchester_saved_state,
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NULL);
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventShortLow,
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&instance->manchester_saved_state,
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NULL);
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} else {
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instance->decoder.parser_step = CameAtomoDecoderStepReset;
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}
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} else {
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if(DURATION_DIFF(duration, subghz_protocol_came_atomo_const.te_short) <
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subghz_protocol_came_atomo_const.te_delta) {
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event = ManchesterEventShortHigh;
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} else if(
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DURATION_DIFF(duration, subghz_protocol_came_atomo_const.te_long) <
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subghz_protocol_came_atomo_const.te_delta) {
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event = ManchesterEventLongHigh;
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} else {
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instance->decoder.parser_step = CameAtomoDecoderStepReset;
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}
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}
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if(event != ManchesterEventReset) {
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bool data;
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bool data_ok = manchester_advance(
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instance->manchester_saved_state, event, &instance->manchester_saved_state, &data);
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if(data_ok) {
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instance->decoder.decode_data = (instance->decoder.decode_data << 1) | !data;
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instance->decoder.decode_count_bit++;
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}
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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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* Analysis of received data
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* @param instance Pointer to a SubGhzBlockGeneric* instance
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* @param file_name Full path to rainbow table the file
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*/
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static void subghz_protocol_came_atomo_remote_controller(
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SubGhzBlockGeneric* instance) {
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/*
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* 0x1fafef3ed0f7d9ef
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* 0x185fcc1531ee86e7
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* 0x184fa96912c567ff
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* 0x187f8a42f3dc38f7
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* 0x186f63915492a5cd
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* 0x181f40bab58bfac5
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* 0x180f25c696a01bdd
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* 0x183f06ed77b944d5
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* 0x182ef661d83d21a9
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* 0x18ded54a39247ea1
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* 0x18ceb0361a0f9fb9
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* 0x18fe931dfb16c0b1
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* 0x18ee7ace5c585d8b
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* ........
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* transmission consists of 99 parcels with increasing counter while holding down the button
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* with each new press, the counter in the encrypted part increases
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*
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* 0x1FAFF13ED0F7D9EF
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* 0x1FAFF11ED0F7D9EF
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* 0x1FAFF10ED0F7D9EF
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* 0x1FAFF0FED0F7D9EF
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* 0x1FAFF0EED0F7D9EF
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* 0x1FAFF0DED0F7D9EF
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* 0x1FAFF0CED0F7D9EF
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* 0x1FAFF0BED0F7D9EF
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* 0x1FAFF0AED0F7D9EF
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*
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* where 0x1FAF - parcel counter, 0хF0A - button press counter,
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* 0xED0F7D9E - serial number, 0хF - key
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* 0x1FAF parcel counter - 1 in the parcel queue ^ 0x185F = 0x07F0
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* 0x185f ^ 0x185F = 0x0000
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* 0x184f ^ 0x185F = 0x0010
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* 0x187f ^ 0x185F = 0x0020
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* .....
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* 0x182e ^ 0x185F = 0x0071
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* 0x18de ^ 0x185F = 0x0081
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* .....
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* 0x1e43 ^ 0x185F = 0x061C
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* where the last nibble is incremented every 8 samples
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*
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* Decode
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*
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* 0x1cf6931dfb16c0b1 => 0x1cf6
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* 0x1cf6 ^ 0x185F = 0x04A9
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* 0x04A9 => 0x04A = 74 (dec)
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* 74+1 % 32(atomo_magic_xor) = 11
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* GET atomo_magic_xor[11] = 0xXXXXXXXXXXXXXXXX
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* 0x931dfb16c0b1 ^ 0xXXXXXXXXXXXXXXXX = 0xEF3ED0F7D9EF
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* 0xEF3 ED0F7D9E F => 0xEF3 - CNT, 0xED0F7D9E - SN, 0xF - key
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*
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* */
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instance->data ^= 0xFFFFFFFFFFFFFFFF;
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instance->data <<= 4;
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uint32_t hi = instance->data >> 32;
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uint32_t lo = instance->data & 0xFFFFFFFF;
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FURI_LOG_I(TAG, "inverted data: %02X %02X %02X %02X %02X %02X %02X %02X\n", (hi >> 24), ((hi >> 16) & 0xFF), ((hi >> 8) & 0xFF), (hi & 0xFF),
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(lo >> 24), ((lo >> 16) & 0xFF), ((lo >> 8) & 0xFF), (lo & 0xFF));
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uint8_t pack[8] = {};
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pack[0] = (instance->data >> 56); pack[1] = ((instance->data >> 48) & 0xFF); pack[2] = ((instance->data >> 40) & 0xFF); pack[3] = ((instance->data >> 32) & 0xFF);
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pack[4] = ((instance->data >> 24) & 0xFF); pack[5] = ((instance->data >> 16) & 0xFF); pack[6] = ((instance->data >> 8) & 0xFF); pack[7] = (instance->data & 0xFF);
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atomo_decrypt(pack);
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instance->cnt_2 = pack[0];
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instance->cnt = (uint16_t)pack[1] << 8 | pack[2];
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instance->serial = (uint32_t)(pack[3]) << 24 | pack[4] << 16 | pack[5] << 8 | pack[6];
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instance->btn = pack[7];
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}
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void atomo_decrypt(uint8_t *buff) {
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buff[0] = ( buff[0] ^ 5 ) & 0x7F;
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uint8_t tmpB = ( -buff[0]) & 0x7F;
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uint8_t bitCnt = 8;
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while (bitCnt < 59) {
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if ( (tmpB & 0x18) && ( ((tmpB / 8) & 3) != 3 ) ) {
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tmpB = ((tmpB << 1) & 0xFF) | 1;
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} else {
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tmpB = (tmpB << 1) & 0xFF;
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}
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if ( tmpB & 0x80 ) {
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buff[bitCnt /8] ^= (0x80 >> (bitCnt & 7));
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}
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bitCnt++;
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}
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// buff[6] &= 0xFD;
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// buff[6] &= 0xFE;
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// buff[7] &= 0x7F;
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// buff[7] &= 0xEF;
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// buff[7] = buff[7] & 0xBF;
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// buff[7] = buff[7] & 0xDF;
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// clear btn
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buff[7] = buff[7] & 0x9F;
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}
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uint8_t subghz_protocol_decoder_came_atomo_get_hash_data(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderCameAtomo* 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_came_atomo_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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SubGhzProtocolDecoderCameAtomo* instance = context;
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return subghz_block_generic_serialize(&instance->generic, flipper_format, frequency, preset);
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}
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bool subghz_protocol_decoder_came_atomo_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolDecoderCameAtomo* instance = context;
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return subghz_block_generic_deserialize(&instance->generic, flipper_format);
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}
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void subghz_protocol_decoder_came_atomo_get_string(void* context, string_t output) {
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furi_assert(context);
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SubGhzProtocolDecoderCameAtomo* instance = context;
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subghz_protocol_came_atomo_remote_controller(
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&instance->generic);
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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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string_cat_printf(
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output,
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"%s %db\r\n"
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"Key:0x%08lX%08lX\r\n"
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"Sn:0x%08lX Btn:0x%01X\r\n"
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"Pcl_Cnt:0x%04X\r\n"
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"Btn_Cnt:0x%02X",
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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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instance->generic.serial,
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instance->generic.btn,
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instance->generic.cnt,
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instance->generic.cnt_2);
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}
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