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unleashed-firmware/lib/subghz/protocols/subghz_protocol_keeloq.c
Skorpionm 8fd411097e
[FL-1758, FL-1790] SubGhz refactoring part 2, fix generation of a new GateTX serial (#696) 
* WidGet: fix name  Multiline String Element
* SubGhz: rename  SubGhzProtocol to SubGhzParser and bring it up
* SubGhz: a new way to navigate in receiver views
* SubGhz: fix syntax
* WedGet: add forwarding input type to wedget button callback, fix using a callback in an application
* SubGhz: add assertions and status checks
* SubGhz: fix syntax
* [FL-1790] SubGhz: fix GateTX
* SubGhz:  add 434.42 MHz frequency support
* SubGhz: rename type protocol, add decoder stage names
* SubGhz: fix navigation through received signals when changing scenes
* SubGhz: fix 2-fsk config

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
2021-09-15 18:24:19 +03:00

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#include "subghz_protocol_keeloq.h"
#include "subghz_protocol_keeloq_common.h"
#include "../subghz_keystore.h"
#include <furi.h>
#include <m-string.h>
struct SubGhzProtocolKeeloq {
SubGhzProtocolCommon common;
SubGhzKeystore* keystore;
const char* manufacture_name;
};
typedef enum {
KeeloqDecoderStepReset = 0,
KeeloqDecoderStepCheckPreambula,
KeeloqDecoderStepSaveDuration,
KeeloqDecoderStepCheckDuration,
} KeeloqDecoderStep;
SubGhzProtocolKeeloq* subghz_protocol_keeloq_alloc(SubGhzKeystore* keystore) {
SubGhzProtocolKeeloq* instance = furi_alloc(sizeof(SubGhzProtocolKeeloq));
instance->keystore = keystore;
instance->common.name = "KeeLoq";
instance->common.code_min_count_bit_for_found = 64;
instance->common.te_short = 400;
instance->common.te_long = 800;
instance->common.te_delta = 140;
instance->common.type_protocol = SubGhzProtocolCommonTypeDynamic;
instance->common.to_string = (SubGhzProtocolCommonToStr)subghz_protocol_keeloq_to_str;
instance->common.to_save_string =
(SubGhzProtocolCommonGetStrSave)subghz_protocol_keeloq_to_save_str;
instance->common.to_load_protocol_from_file =
(SubGhzProtocolCommonLoadFromFile)subghz_protocol_keeloq_to_load_protocol_from_file;
instance->common.to_load_protocol =
(SubGhzProtocolCommonLoadFromRAW)subghz_decoder_keeloq_to_load_protocol;
instance->common.get_upload_protocol =
(SubGhzProtocolCommonEncoderGetUpLoad)subghz_protocol_keeloq_send_key;
return instance;
}
void subghz_protocol_keeloq_free(SubGhzProtocolKeeloq* instance) {
furi_assert(instance);
free(instance);
}
/** Checking the accepted code against the database manafacture key
*
* @param instance SubGhzProtocolKeeloq instance
* @param fix fix part of the parcel
* @param hop hop encrypted part of the parcel
* @return true on successful search
*/
uint8_t subghz_protocol_keeloq_check_remote_controller_selector(
SubGhzProtocolKeeloq* instance,
uint32_t fix,
uint32_t hop) {
uint16_t end_serial = (uint16_t)(fix & 0x3FF);
uint8_t btn = (uint8_t)(fix >> 28);
uint32_t decrypt = 0;
uint64_t man_normal_learning;
for
M_EACH(manufacture_code, *subghz_keystore_get_data(instance->keystore), SubGhzKeyArray_t) {
switch(manufacture_code->type) {
case KEELOQ_LEARNING_SIMPLE:
//Simple Learning
decrypt = subghz_protocol_keeloq_common_decrypt(hop, manufacture_code->key);
if((decrypt >> 28 == btn) &&
(((((uint16_t)(decrypt >> 16)) & 0x3FF) == end_serial) ||
((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0))) {
instance->manufacture_name = string_get_cstr(manufacture_code->name);
instance->common.cnt = decrypt & 0x0000FFFF;
return 1;
}
break;
case KEELOQ_LEARNING_NORMAL:
// Normal_Learning
// https://phreakerclub.com/forum/showpost.php?p=43557&postcount=37
man_normal_learning =
subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_normal_learning);
if((decrypt >> 28 == btn) &&
(((((uint16_t)(decrypt >> 16)) & 0x3FF) == end_serial) ||
((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0))) {
instance->manufacture_name = string_get_cstr(manufacture_code->name);
instance->common.cnt = decrypt & 0x0000FFFF;
return 1;
}
break;
case KEELOQ_LEARNING_UNKNOWN:
// Simple Learning
decrypt = subghz_protocol_keeloq_common_decrypt(hop, manufacture_code->key);
if((decrypt >> 28 == btn) &&
(((((uint16_t)(decrypt >> 16)) & 0x3FF) == end_serial) ||
((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0))) {
instance->manufacture_name = string_get_cstr(manufacture_code->name);
instance->common.cnt = decrypt & 0x0000FFFF;
return 1;
}
// Check for mirrored man
uint64_t man_rev = 0;
uint64_t man_rev_byte = 0;
for(uint8_t i = 0; i < 64; i += 8) {
man_rev_byte = (uint8_t)(manufacture_code->key >> i);
man_rev = man_rev | man_rev_byte << (56 - i);
}
decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_rev);
if((decrypt >> 28 == btn) &&
(((((uint16_t)(decrypt >> 16)) & 0x3FF) == end_serial) ||
((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0))) {
instance->manufacture_name = string_get_cstr(manufacture_code->name);
instance->common.cnt = decrypt & 0x0000FFFF;
return 1;
}
//###########################
// Normal_Learning
// https://phreakerclub.com/forum/showpost.php?p=43557&postcount=37
man_normal_learning =
subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_normal_learning);
if((decrypt >> 28 == btn) &&
(((((uint16_t)(decrypt >> 16)) & 0x3FF) == end_serial) ||
((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0))) {
instance->manufacture_name = string_get_cstr(manufacture_code->name);
instance->common.cnt = decrypt & 0x0000FFFF;
return 1;
}
// Check for mirrored man
man_rev = 0;
man_rev_byte = 0;
for(uint8_t i = 0; i < 64; i += 8) {
man_rev_byte = (uint8_t)(manufacture_code->key >> i);
man_rev = man_rev | man_rev_byte << (56 - i);
}
man_normal_learning = subghz_protocol_keeloq_common_normal_learning(fix, man_rev);
decrypt = subghz_protocol_keeloq_common_decrypt(hop, man_normal_learning);
if((decrypt >> 28 == btn) &&
(((((uint16_t)(decrypt >> 16)) & 0x3FF) == end_serial) ||
((((uint16_t)(decrypt >> 16)) & 0x3FF) == 0))) {
instance->manufacture_name = string_get_cstr(manufacture_code->name);
instance->common.cnt = decrypt & 0x0000FFFF;
return 1;
}
break;
}
}
instance->manufacture_name = "Unknown";
instance->common.cnt = 0;
return 0;
}
/** Analysis of received data
*
* @param instance SubGhzProtocolKeeloq instance
*/
void subghz_protocol_keeloq_check_remote_controller(SubGhzProtocolKeeloq* instance) {
uint64_t key = subghz_protocol_common_reverse_key(
instance->common.code_last_found, instance->common.code_last_count_bit);
uint32_t key_fix = key >> 32;
uint32_t key_hop = key & 0x00000000ffffffff;
// Check key AN-Motors
if((key_hop >> 24) == ((key_hop >> 16) & 0x00ff) &&
(key_fix >> 28) == ((key_hop >> 12) & 0x0f) && (key_hop & 0xFFF) == 0x404) {
instance->manufacture_name = "AN-Motors";
instance->common.cnt = key_hop >> 16;
} else if((key_hop & 0xFFF) == (0x000) && (key_fix >> 28) == ((key_hop >> 12) & 0x0f)) {
instance->manufacture_name = "HCS101";
instance->common.cnt = key_hop >> 16;
} else {
subghz_protocol_keeloq_check_remote_controller_selector(instance, key_fix, key_hop);
}
instance->common.serial = key_fix & 0x0FFFFFFF;
instance->common.btn = key_fix >> 28;
}
const char* subghz_protocol_keeloq_find_and_get_manufacture_name(void* context) {
SubGhzProtocolKeeloq* instance = context;
subghz_protocol_keeloq_check_remote_controller(instance);
return instance->manufacture_name;
}
const char* subghz_protocol_keeloq_get_manufacture_name(void* context) {
SubGhzProtocolKeeloq* instance = context;
return instance->manufacture_name;
}
bool subghz_protocol_keeloq_set_manufacture_name(void* context, const char* manufacture_name) {
SubGhzProtocolKeeloq* instance = context;
instance->manufacture_name = manufacture_name;
int res = 0;
for
M_EACH(
manufacture_code,
*subghz_keystore_get_data(instance->keystore),
SubGhzKeyArray_t) {
res = strcmp(string_get_cstr(manufacture_code->name), instance->manufacture_name);
if(res == 0) return true;
}
instance->manufacture_name = "Unknown";
return false;
}
uint64_t subghz_protocol_keeloq_gen_key(void* context) {
SubGhzProtocolKeeloq* instance = context;
uint32_t fix = instance->common.btn << 28 | instance->common.serial;
uint32_t decrypt = instance->common.btn << 28 | (instance->common.serial & 0x3FF) << 16 |
instance->common.cnt;
uint32_t hop = 0;
uint64_t man_normal_learning = 0;
int res = 0;
for
M_EACH(manufacture_code, *subghz_keystore_get_data(instance->keystore), SubGhzKeyArray_t) {
res = strcmp(string_get_cstr(manufacture_code->name), instance->manufacture_name);
if(res == 0) {
switch(manufacture_code->type) {
case KEELOQ_LEARNING_SIMPLE:
//Simple Learning
hop = subghz_protocol_keeloq_common_encrypt(decrypt, manufacture_code->key);
break;
case KEELOQ_LEARNING_NORMAL:
//Simple Learning
man_normal_learning =
subghz_protocol_keeloq_common_normal_learning(fix, manufacture_code->key);
hop = subghz_protocol_keeloq_common_encrypt(decrypt, man_normal_learning);
break;
case KEELOQ_LEARNING_UNKNOWN:
hop = 0; //todo
break;
}
break;
}
}
uint64_t yek = (uint64_t)fix << 32 | hop;
return subghz_protocol_common_reverse_key(yek, instance->common.code_last_count_bit);
}
bool subghz_protocol_keeloq_send_key(
SubGhzProtocolKeeloq* instance,
SubGhzProtocolCommonEncoder* encoder) {
furi_assert(instance);
furi_assert(encoder);
//gen new key
instance->common.cnt++;
instance->common.code_last_found = subghz_protocol_keeloq_gen_key(instance);
if(instance->common.callback)
instance->common.callback((SubGhzProtocolCommon*)instance, instance->common.context);
if(!strcmp(instance->manufacture_name, "Unknown")) {
return false;
}
size_t index = 0;
encoder->size_upload = 11 * 2 + 2 + (instance->common.code_last_count_bit * 2) + 4;
if(encoder->size_upload > SUBGHZ_ENCODER_UPLOAD_MAX_SIZE) return false;
//Send header
for(uint8_t i = 11; i > 0; i--) {
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);
}
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 * 10);
//Send key data
for(uint8_t i = instance->common.code_last_count_bit; i > 0; i--) {
if(bit_read(instance->common.code_last_found, i - 1)) {
//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++;
} else {
instance->common.parser_step = KeeloqDecoderStepReset;
}
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);
}
void subghz_protocol_keeloq_to_save_str(SubGhzProtocolKeeloq* instance, string_t output) {
string_printf(
output,
"Protocol: %s\n"
"Bit: %d\n"
"Key: %08lX%08lX\n",
instance->common.name,
instance->common.code_last_count_bit,
(uint32_t)(instance->common.code_last_found >> 32),
(uint32_t)(instance->common.code_last_found & 0xFFFFFFFF));
}
bool subghz_protocol_keeloq_to_load_protocol_from_file(
FileWorker* file_worker,
SubGhzProtocolKeeloq* instance) {
bool loaded = false;
string_t temp_str;
string_init(temp_str);
int res = 0;
int data = 0;
do {
// Read and parse bit data from 2nd line
if(!file_worker_read_until(file_worker, temp_str, '\n')) {
break;
}
res = sscanf(string_get_cstr(temp_str), "Bit: %d\n", &data);
if(res != 1) {
break;
}
instance->common.code_last_count_bit = (uint8_t)data;
// Read and parse key data from 3nd line
if(!file_worker_read_until(file_worker, temp_str, '\n')) {
break;
}
// strlen("Key: ") = 5
string_right(temp_str, 5);
uint8_t buf_key[8] = {0};
if(!subghz_protocol_common_read_hex(temp_str, buf_key, 8)) {
break;
}
for(uint8_t i = 0; i < 8; i++) {
instance->common.code_last_found = instance->common.code_last_found << 8 | buf_key[i];
}
loaded = true;
} while(0);
string_clear(temp_str);
return loaded;
}
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);
}
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