2021-10-17 22:54:19 +00:00
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#include "subghz_protocol_keeloq.h"
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#include "subghz_protocol_keeloq_common.h"
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#include "../subghz_keystore.h"
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#include <furi.h>
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#include <m-string.h>
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struct SubGhzProtocolKeeloq {
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SubGhzProtocolCommon common;
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SubGhzKeystore* keystore;
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const char* manufacture_name;
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};
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typedef enum {
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KeeloqDecoderStepReset = 0,
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KeeloqDecoderStepCheckPreambula,
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KeeloqDecoderStepSaveDuration,
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KeeloqDecoderStepCheckDuration,
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} KeeloqDecoderStep;
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SubGhzProtocolKeeloq* subghz_protocol_keeloq_alloc(SubGhzKeystore* keystore) {
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SubGhzProtocolKeeloq* instance = furi_alloc(sizeof(SubGhzProtocolKeeloq));
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instance->keystore = keystore;
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instance->common.name = "KeeLoq";
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instance->common.code_min_count_bit_for_found = 64;
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instance->common.te_short = 400;
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instance->common.te_long = 800;
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instance->common.te_delta = 140;
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instance->common.type_protocol = SubGhzProtocolCommonTypeDynamic;
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instance->common.to_string = (SubGhzProtocolCommonToStr)subghz_protocol_keeloq_to_str;
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2021-11-11 12:49:19 +00:00
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instance->common.to_save_file =
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(SubGhzProtocolCommonSaveFile)subghz_protocol_keeloq_to_save_file;
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2021-10-17 22:54:19 +00:00
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instance->common.to_load_protocol_from_file =
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(SubGhzProtocolCommonLoadFromFile)subghz_protocol_keeloq_to_load_protocol_from_file;
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instance->common.to_load_protocol =
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(SubGhzProtocolCommonLoadFromRAW)subghz_decoder_keeloq_to_load_protocol;
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instance->common.get_upload_protocol =
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(SubGhzProtocolCommonEncoderGetUpLoad)subghz_protocol_keeloq_send_key;
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return instance;
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}
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void subghz_protocol_keeloq_free(SubGhzProtocolKeeloq* instance) {
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furi_assert(instance);
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free(instance);
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}
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2021-11-17 13:52:06 +00:00
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static inline bool subghz_protocol_keeloq_check_decrypt(
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SubGhzProtocolKeeloq* 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 >> 28 == btn) && (((((uint16_t)(decrypt >> 16)) & 0xFF) == end_serial) ||
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((((uint16_t)(decrypt >> 16)) & 0xFF) == 0))) {
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instance->common.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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2021-10-17 22:54:19 +00:00
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/** Checking the accepted code against the database manafacture key
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*
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* @param instance SubGhzProtocolKeeloq 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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* @return true on successful search
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*/
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uint8_t subghz_protocol_keeloq_check_remote_controller_selector(
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SubGhzProtocolKeeloq* instance,
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uint32_t fix,
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uint32_t hop) {
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2021-11-17 13:52:06 +00:00
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// protocol HCS300 uses 10 bits in discriminator, HCS200 uses 8 bits, for backward compatibility, we are looking for the 8-bit pattern
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// HCS300 -> uint16_t end_serial = (uint16_t)(fix & 0x3FF);
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// HCS200 -> uint16_t end_serial = (uint16_t)(fix & 0xFF);
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uint16_t end_serial = (uint16_t)(fix & 0xFF);
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2021-10-17 22:54:19 +00:00
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uint8_t btn = (uint8_t)(fix >> 28);
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uint32_t decrypt = 0;
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2021-11-17 13:52:06 +00:00
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uint64_t man_learning;
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uint32_t seed = 0;
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2021-10-17 22:54:19 +00:00
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for
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M_EACH(manufacture_code, *subghz_keystore_get_data(instance->keystore), SubGhzKeyArray_t) {
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switch(manufacture_code->type) {
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case KEELOQ_LEARNING_SIMPLE:
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2021-11-03 16:41:07 +00:00
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// Simple Learning
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2021-10-17 22:54:19 +00:00
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, manufacture_code->key);
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2021-11-17 13:52:06 +00:00
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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2021-10-17 22:54:19 +00:00
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instance->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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2021-11-26 14:01:03 +00:00
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// Normal Learning
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2021-10-17 22:54:19 +00:00
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// https://phreakerclub.com/forum/showpost.php?p=43557&postcount=37
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2021-11-17 13:52:06 +00:00
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man_learning =
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2021-10-17 22:54:19 +00:00
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subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
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2021-11-17 13:52:06 +00:00
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_learning);
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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instance->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_SECURE:
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man_learning = subghz_protocol_keeloq_common_secure_learning(
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fix, seed, manufacture_code->key);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_learning);
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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2021-10-17 22:54:19 +00:00
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instance->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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2021-11-17 13:52:06 +00:00
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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2021-10-17 22:54:19 +00:00
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instance->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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2021-11-17 13:52:06 +00:00
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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2021-10-17 22:54:19 +00:00
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instance->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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2021-11-26 14:01:03 +00:00
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// Normal Learning
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2021-10-17 22:54:19 +00:00
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// https://phreakerclub.com/forum/showpost.php?p=43557&postcount=37
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2021-11-17 13:52:06 +00:00
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man_learning =
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2021-10-17 22:54:19 +00:00
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subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
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2021-11-17 13:52:06 +00:00
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_learning);
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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2021-10-17 22:54:19 +00:00
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instance->manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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}
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2021-11-17 13:52:06 +00:00
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man_learning = subghz_protocol_keeloq_common_normal_learning(fix, man_rev);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_learning);
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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instance->manufacture_name = string_get_cstr(manufacture_code->name);
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return 1;
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2021-10-17 22:54:19 +00:00
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}
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2021-11-17 13:52:06 +00:00
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// Secure Learning
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man_learning = subghz_protocol_keeloq_common_secure_learning(
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fix, seed, manufacture_code->key);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_learning);
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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instance->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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man_learning = subghz_protocol_keeloq_common_secure_learning(fix, seed, man_rev);
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decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_learning);
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if(subghz_protocol_keeloq_check_decrypt(instance, decrypt, btn, end_serial)) {
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2021-10-17 22:54:19 +00:00
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instance->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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instance->manufacture_name = "Unknown";
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instance->common.cnt = 0;
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return 0;
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}
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/** Analysis of received data
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*
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* @param instance SubGhzProtocolKeeloq instance
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*/
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void subghz_protocol_keeloq_check_remote_controller(SubGhzProtocolKeeloq* instance) {
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uint64_t key = subghz_protocol_common_reverse_key(
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instance->common.code_last_found, instance->common.code_last_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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// Check key AN-Motors
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if((key_hop >> 24) == ((key_hop >> 16) & 0x00ff) &&
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(key_fix >> 28) == ((key_hop >> 12) & 0x0f) && (key_hop & 0xFFF) == 0x404) {
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instance->manufacture_name = "AN-Motors";
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instance->common.cnt = key_hop >> 16;
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} else if((key_hop & 0xFFF) == (0x000) && (key_fix >> 28) == ((key_hop >> 12) & 0x0f)) {
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instance->manufacture_name = "HCS101";
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instance->common.cnt = key_hop >> 16;
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} else {
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subghz_protocol_keeloq_check_remote_controller_selector(instance, key_fix, key_hop);
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}
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instance->common.serial = key_fix & 0x0FFFFFFF;
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instance->common.btn = key_fix >> 28;
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}
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const char* subghz_protocol_keeloq_find_and_get_manufacture_name(void* context) {
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SubGhzProtocolKeeloq* instance = context;
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subghz_protocol_keeloq_check_remote_controller(instance);
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return instance->manufacture_name;
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}
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const char* subghz_protocol_keeloq_get_manufacture_name(void* context) {
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SubGhzProtocolKeeloq* instance = context;
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return instance->manufacture_name;
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}
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bool subghz_protocol_keeloq_set_manufacture_name(void* context, const char* manufacture_name) {
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SubGhzProtocolKeeloq* instance = context;
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instance->manufacture_name = manufacture_name;
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int res = 0;
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for
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M_EACH(
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manufacture_code,
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*subghz_keystore_get_data(instance->keystore),
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SubGhzKeyArray_t) {
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res = strcmp(string_get_cstr(manufacture_code->name), instance->manufacture_name);
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if(res == 0) return true;
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}
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instance->manufacture_name = "Unknown";
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return false;
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}
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uint64_t subghz_protocol_keeloq_gen_key(void* context) {
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SubGhzProtocolKeeloq* instance = context;
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uint32_t fix = instance->common.btn << 28 | instance->common.serial;
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uint32_t decrypt = instance->common.btn << 28 | (instance->common.serial & 0x3FF) << 16 |
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instance->common.cnt;
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uint32_t hop = 0;
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2021-11-17 13:52:06 +00:00
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uint64_t man_learning = 0;
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2021-10-17 22:54:19 +00:00
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int res = 0;
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for
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M_EACH(manufacture_code, *subghz_keystore_get_data(instance->keystore), SubGhzKeyArray_t) {
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res = strcmp(string_get_cstr(manufacture_code->name), instance->manufacture_name);
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if(res == 0) {
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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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hop = subghz_protocol_keeloq_common_encrypt(decrypt, manufacture_code->key);
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break;
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case KEELOQ_LEARNING_NORMAL:
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//Simple Learning
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2021-11-17 13:52:06 +00:00
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man_learning =
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2021-10-17 22:54:19 +00:00
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subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
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2021-11-17 13:52:06 +00:00
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hop = subghz_protocol_keeloq_common_encrypt(decrypt, man_learning);
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2021-10-17 22:54:19 +00:00
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break;
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case KEELOQ_LEARNING_UNKNOWN:
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hop = 0; //todo
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break;
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}
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break;
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}
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}
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uint64_t yek = (uint64_t)fix << 32 | hop;
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return subghz_protocol_common_reverse_key(yek, instance->common.code_last_count_bit);
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}
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bool subghz_protocol_keeloq_send_key(
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SubGhzProtocolKeeloq* instance,
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SubGhzProtocolCommonEncoder* encoder) {
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furi_assert(instance);
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furi_assert(encoder);
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//gen new key
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instance->common.cnt++;
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instance->common.code_last_found = subghz_protocol_keeloq_gen_key(instance);
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if(instance->common.callback)
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instance->common.callback((SubGhzProtocolCommon*)instance, instance->common.context);
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if(!strcmp(instance->manufacture_name, "Unknown")) {
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return false;
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}
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size_t index = 0;
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encoder->size_upload = 11 * 2 + 2 + (instance->common.code_last_count_bit * 2) + 4;
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if(encoder->size_upload > SUBGHZ_ENCODER_UPLOAD_MAX_SIZE) return false;
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//Send header
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for(uint8_t i = 11; i > 0; i--) {
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encoder->upload[index++] = level_duration_make(true, (uint32_t)instance->common.te_short);
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encoder->upload[index++] = level_duration_make(false, (uint32_t)instance->common.te_short);
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}
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encoder->upload[index++] = level_duration_make(true, (uint32_t)instance->common.te_short);
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encoder->upload[index++] =
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level_duration_make(false, (uint32_t)instance->common.te_short * 10);
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//Send key data
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for(uint8_t i = instance->common.code_last_count_bit; i > 0; i--) {
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if(bit_read(instance->common.code_last_found, i - 1)) {
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//send bit 1
|
|
|
|
encoder->upload[index++] =
|
|
|
|
level_duration_make(true, (uint32_t)instance->common.te_short);
|
|
|
|
encoder->upload[index++] =
|
|
|
|
level_duration_make(false, (uint32_t)instance->common.te_long);
|
|
|
|
} else {
|
|
|
|
//send bit 0
|
|
|
|
encoder->upload[index++] =
|
|
|
|
level_duration_make(true, (uint32_t)instance->common.te_long);
|
|
|
|
encoder->upload[index++] =
|
|
|
|
level_duration_make(false, (uint32_t)instance->common.te_short);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// +send 2 status bit
|
|
|
|
encoder->upload[index++] = level_duration_make(true, (uint32_t)instance->common.te_short);
|
|
|
|
encoder->upload[index++] = level_duration_make(false, (uint32_t)instance->common.te_long);
|
|
|
|
|
|
|
|
//encoder->upload[index++] = level_duration_make(true, (uint32_t)instance->common.te_long);
|
|
|
|
//encoder->upload[index++] = level_duration_make(false, (uint32_t)instance->common.te_short);
|
|
|
|
|
|
|
|
// send end
|
|
|
|
encoder->upload[index++] = level_duration_make(true, (uint32_t)instance->common.te_short);
|
|
|
|
encoder->upload[index++] =
|
|
|
|
level_duration_make(false, (uint32_t)instance->common.te_short * 40);
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
void subghz_protocol_keeloq_reset(SubGhzProtocolKeeloq* instance) {
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepReset;
|
|
|
|
}
|
|
|
|
|
|
|
|
void subghz_protocol_keeloq_parse(SubGhzProtocolKeeloq* instance, bool level, uint32_t duration) {
|
|
|
|
switch(instance->common.parser_step) {
|
|
|
|
case KeeloqDecoderStepReset:
|
|
|
|
if((level) &&
|
|
|
|
DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta) {
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepCheckPreambula;
|
|
|
|
instance->common.header_count++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case KeeloqDecoderStepCheckPreambula:
|
|
|
|
if((!level) &&
|
|
|
|
(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepReset;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if((instance->common.header_count > 2) &&
|
|
|
|
(DURATION_DIFF(duration, instance->common.te_short * 10) <
|
|
|
|
instance->common.te_delta * 10)) {
|
|
|
|
// Found header
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepSaveDuration;
|
|
|
|
instance->common.code_found = 0;
|
|
|
|
instance->common.code_count_bit = 0;
|
|
|
|
} else {
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepReset;
|
|
|
|
instance->common.header_count = 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case KeeloqDecoderStepSaveDuration:
|
|
|
|
if(level) {
|
|
|
|
instance->common.te_last = duration;
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepCheckDuration;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case KeeloqDecoderStepCheckDuration:
|
|
|
|
if(!level) {
|
|
|
|
if(duration >= (instance->common.te_short * 2 + instance->common.te_delta)) {
|
|
|
|
// Found end TX
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepReset;
|
|
|
|
if(instance->common.code_count_bit >=
|
|
|
|
instance->common.code_min_count_bit_for_found) {
|
|
|
|
if(instance->common.code_last_found != instance->common.code_found) {
|
|
|
|
instance->common.code_last_found = instance->common.code_found;
|
|
|
|
instance->common.code_last_count_bit = instance->common.code_count_bit;
|
|
|
|
if(instance->common.callback)
|
|
|
|
instance->common.callback(
|
|
|
|
(SubGhzProtocolCommon*)instance, instance->common.context);
|
|
|
|
}
|
|
|
|
instance->common.code_found = 0;
|
|
|
|
instance->common.code_count_bit = 0;
|
|
|
|
instance->common.header_count = 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
} else if(
|
|
|
|
(DURATION_DIFF(instance->common.te_last, instance->common.te_short) <
|
|
|
|
instance->common.te_delta) &&
|
|
|
|
(DURATION_DIFF(duration, instance->common.te_long) < instance->common.te_delta)) {
|
|
|
|
if(instance->common.code_count_bit <
|
|
|
|
instance->common.code_min_count_bit_for_found) {
|
|
|
|
subghz_protocol_common_add_bit(&instance->common, 1);
|
|
|
|
}
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepSaveDuration;
|
|
|
|
} else if(
|
|
|
|
(DURATION_DIFF(instance->common.te_last, instance->common.te_long) <
|
|
|
|
instance->common.te_delta) &&
|
|
|
|
(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
|
|
|
|
if(instance->common.code_count_bit <
|
|
|
|
instance->common.code_min_count_bit_for_found) {
|
|
|
|
subghz_protocol_common_add_bit(&instance->common, 0);
|
|
|
|
}
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepSaveDuration;
|
|
|
|
} else {
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepReset;
|
|
|
|
instance->common.header_count = 0;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
instance->common.parser_step = KeeloqDecoderStepReset;
|
|
|
|
instance->common.header_count = 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void subghz_protocol_keeloq_to_str(SubGhzProtocolKeeloq* instance, string_t output) {
|
|
|
|
subghz_protocol_keeloq_check_remote_controller(instance);
|
|
|
|
uint32_t code_found_hi = instance->common.code_last_found >> 32;
|
|
|
|
uint32_t code_found_lo = instance->common.code_last_found & 0x00000000ffffffff;
|
|
|
|
|
|
|
|
uint64_t code_found_reverse = subghz_protocol_common_reverse_key(
|
|
|
|
instance->common.code_last_found, instance->common.code_last_count_bit);
|
|
|
|
|
|
|
|
uint32_t code_found_reverse_hi = code_found_reverse >> 32;
|
|
|
|
uint32_t code_found_reverse_lo = code_found_reverse & 0x00000000ffffffff;
|
|
|
|
string_cat_printf(
|
|
|
|
output,
|
|
|
|
"%s %dbit\r\n"
|
|
|
|
"Key:%08lX%08lX\r\n"
|
|
|
|
"Fix:0x%08lX Cnt:%04X\r\n"
|
|
|
|
"Hop:0x%08lX Btn:%02lX\r\n"
|
|
|
|
"MF:%s\r\n"
|
|
|
|
"Sn:0x%07lX \r\n",
|
|
|
|
instance->common.name,
|
|
|
|
instance->common.code_last_count_bit,
|
|
|
|
code_found_hi,
|
|
|
|
code_found_lo,
|
|
|
|
code_found_reverse_hi,
|
|
|
|
instance->common.cnt,
|
|
|
|
code_found_reverse_lo,
|
|
|
|
instance->common.btn,
|
|
|
|
instance->manufacture_name,
|
|
|
|
instance->common.serial);
|
|
|
|
}
|
|
|
|
|
2021-11-11 12:49:19 +00:00
|
|
|
bool subghz_protocol_keeloq_to_save_file(SubGhzProtocolKeeloq* instance, FlipperFile* flipper_file) {
|
|
|
|
return subghz_protocol_common_to_save_file((SubGhzProtocolCommon*)instance, flipper_file);
|
2021-10-17 22:54:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
bool subghz_protocol_keeloq_to_load_protocol_from_file(
|
2021-11-11 12:49:19 +00:00
|
|
|
FlipperFile* flipper_file,
|
2021-10-25 14:37:14 +00:00
|
|
|
SubGhzProtocolKeeloq* instance,
|
|
|
|
const char* file_path) {
|
2021-11-11 12:49:19 +00:00
|
|
|
return subghz_protocol_common_to_load_protocol_from_file(
|
|
|
|
(SubGhzProtocolCommon*)instance, flipper_file);
|
2021-10-17 22:54:19 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void subghz_decoder_keeloq_to_load_protocol(SubGhzProtocolKeeloq* instance, void* context) {
|
|
|
|
furi_assert(context);
|
|
|
|
furi_assert(instance);
|
|
|
|
SubGhzProtocolCommonLoad* data = context;
|
|
|
|
instance->common.code_last_found = data->code_found;
|
|
|
|
instance->common.code_last_count_bit = data->code_count_bit;
|
|
|
|
subghz_protocol_keeloq_check_remote_controller(instance);
|
|
|
|
}
|