 72ca6b25e9
			
		
	
	
		72ca6b25e9
		
			
		
	
	
	
	
		
			
			* SubGhz: add error protocol * WS: add error protocol * SubGhz: error processing * SubGhz: more stringent CAME protocol restrictions * SubGhz: fix header duration CAME protocol * SubGhz: delete comments * SubGhz: sync SubGhzProtocolStatus with FuriStatus * SubGhz: update documentation and bump api_version Co-authored-by: あく <alleteam@gmail.com>
		
			
				
	
	
		
			509 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			509 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| #include "nice_flor_s.h"
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| 
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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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| 
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| /*
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|  * https://phreakerclub.com/1615
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|  * https://phreakerclub.com/forum/showthread.php?t=2360
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|  * https://vrtp.ru/index.php?showtopic=27867
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|  */
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| 
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| #define TAG "SubGhzProtocoNiceFlorS"
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| 
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| #define NICE_ONE_COUNT_BIT 72
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| #define NICE_ONE_NAME "Nice One"
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| 
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| static const SubGhzBlockConst subghz_protocol_nice_flor_s_const = {
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|     .te_short = 500,
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|     .te_long = 1000,
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|     .te_delta = 300,
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|     .min_count_bit_for_found = 52,
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| };
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| 
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| struct SubGhzProtocolDecoderNiceFlorS {
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|     SubGhzProtocolDecoderBase base;
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| 
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|     SubGhzBlockDecoder decoder;
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|     SubGhzBlockGeneric generic;
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| 
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|     const char* nice_flor_s_rainbow_table_file_name;
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|     uint64_t data;
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| };
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| 
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| struct SubGhzProtocolEncoderNiceFlorS {
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|     SubGhzProtocolEncoderBase base;
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| 
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|     SubGhzProtocolBlockEncoder encoder;
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|     SubGhzBlockGeneric generic;
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| };
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| 
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| typedef enum {
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|     NiceFlorSDecoderStepReset = 0,
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|     NiceFlorSDecoderStepCheckHeader,
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|     NiceFlorSDecoderStepFoundHeader,
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|     NiceFlorSDecoderStepSaveDuration,
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|     NiceFlorSDecoderStepCheckDuration,
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| } NiceFlorSDecoderStep;
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| 
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| const SubGhzProtocolDecoder subghz_protocol_nice_flor_s_decoder = {
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|     .alloc = subghz_protocol_decoder_nice_flor_s_alloc,
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|     .free = subghz_protocol_decoder_nice_flor_s_free,
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| 
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|     .feed = subghz_protocol_decoder_nice_flor_s_feed,
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|     .reset = subghz_protocol_decoder_nice_flor_s_reset,
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| 
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|     .get_hash_data = subghz_protocol_decoder_nice_flor_s_get_hash_data,
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|     .serialize = subghz_protocol_decoder_nice_flor_s_serialize,
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|     .deserialize = subghz_protocol_decoder_nice_flor_s_deserialize,
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|     .get_string = subghz_protocol_decoder_nice_flor_s_get_string,
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| };
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| 
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| const SubGhzProtocolEncoder subghz_protocol_nice_flor_s_encoder = {
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|     .alloc = NULL,
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|     .free = NULL,
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| 
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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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| 
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| const SubGhzProtocol subghz_protocol_nice_flor_s = {
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|     .name = SUBGHZ_PROTOCOL_NICE_FLOR_S_NAME,
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|     .type = SubGhzProtocolTypeDynamic,
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|     .flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_868 | SubGhzProtocolFlag_AM |
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|             SubGhzProtocolFlag_Decodable,
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| 
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|     .decoder = &subghz_protocol_nice_flor_s_decoder,
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|     .encoder = &subghz_protocol_nice_flor_s_encoder,
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| };
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| 
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| // /**
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| //  * Read bytes from rainbow table
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| //  * @param p array[10]  P0-P1|P2-P3-P4-P5-P6-P7-P8-P9-P10
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| //  * @return crc
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| //  */
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| // static uint32_t subghz_protocol_nice_one_crc(uint8_t* p) {
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| //     uint8_t crc = 0;
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| //     uint8_t crc_data = 0xff;
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| //     for(uint8_t i = 4; i < 68; i++) {
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| //         if(subghz_protocol_blocks_get_bit_array(p, i)) {
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| //             crc = crc_data ^ 1;
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| //         } else {
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| //             crc = crc_data;
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| //         }
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| //         crc_data >>= 1;
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| //         if((crc & 0x01)) {
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| //             crc_data ^= 0x97;
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| //         }
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| //     }
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| //     crc = 0;
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| //     for(uint8_t i = 0; i < 8; i++) {
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| //         crc <<= 1;
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| //         if((crc_data >> i) & 0x01) crc = crc | 1;
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| //     }
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| //     return crc;
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| // }
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| 
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| // /**
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| //  * Read bytes from rainbow table
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| //  * @param p array[10]  P0-P1|P2-P3-P4-P5-P6-P7-XX-XX-XX
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| //  * @param num_parcel  parcel number 0..15
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| //  * @param hold_bit  0 - the button was only pressed, 1 - the button was held down
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| //  */
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| // static void subghz_protocol_nice_one_get_data(uint8_t* p, uint8_t num_parcel, uint8_t hold_bit) {
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| //     uint8_t k = 0;
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| //     uint8_t crc = 0;
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| //     p[1] = (p[1] & 0x0f) | ((0x0f ^ (p[0] & 0x0F) ^ num_parcel) << 4);
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| //     if(num_parcel < 4) {
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| //         k = 0x8f;
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| //     } else {
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| //         k = 0x80;
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| //     }
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| 
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| //     if(!hold_bit) {
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| //         hold_bit = 0;
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| //     } else {
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| //         hold_bit = 0x10;
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| //     }
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| //     k = num_parcel ^ k;
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| //     p[7] = k;
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| //     p[8] = hold_bit ^ (k << 4);
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| 
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| //     crc = subghz_protocol_nice_one_crc(p);
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| 
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| //     p[8] |= crc >> 4;
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| //     p[9] = crc << 4;
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| // }
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| 
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| /** 
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|  * Read bytes from rainbow table
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|  * @param file_name Full path to rainbow table the file 
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|  * @param address Byte address in file
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|  * @return data
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|  */
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| static uint8_t
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|     subghz_protocol_nice_flor_s_get_byte_in_file(const char* file_name, uint32_t address) {
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|     if(!file_name) return 0;
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| 
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|     uint8_t buffer[1] = {0};
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|     if(subghz_keystore_raw_get_data(file_name, address, buffer, sizeof(uint8_t))) {
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|         return buffer[0];
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|     } else {
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|         return 0;
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|     }
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| }
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| 
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| static inline void subghz_protocol_decoder_nice_flor_s_magic_xor(uint8_t* p, uint8_t k) {
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|     for(uint8_t i = 1; i < 6; i++) {
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|         p[i] ^= k;
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|     }
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| }
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| 
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| uint64_t subghz_protocol_nice_flor_s_encrypt(uint64_t data, const char* file_name) {
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|     uint8_t* p = (uint8_t*)&data;
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| 
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|     uint8_t k = 0;
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|     for(uint8_t y = 0; y < 2; y++) {
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|         k = subghz_protocol_nice_flor_s_get_byte_in_file(file_name, p[0] & 0x1f);
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|         subghz_protocol_decoder_nice_flor_s_magic_xor(p, k);
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| 
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|         p[5] &= 0x0f;
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|         p[0] ^= k & 0xe0;
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|         k = subghz_protocol_nice_flor_s_get_byte_in_file(file_name, p[0] >> 3) + 0x25;
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|         subghz_protocol_decoder_nice_flor_s_magic_xor(p, k);
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| 
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|         p[5] &= 0x0f;
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|         p[0] ^= k & 0x7;
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|         if(y == 0) {
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|             k = p[0];
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|             p[0] = p[1];
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|             p[1] = k;
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|         }
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|     }
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| 
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|     p[5] = ~p[5] & 0x0f;
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|     k = ~p[4];
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|     p[4] = ~p[0];
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|     p[0] = ~p[2];
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|     p[2] = k;
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|     k = ~p[3];
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|     p[3] = ~p[1];
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|     p[1] = k;
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| 
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|     return data;
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| }
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| 
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| static uint64_t
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|     subghz_protocol_nice_flor_s_decrypt(SubGhzBlockGeneric* instance, const char* file_name) {
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|     furi_assert(instance);
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|     uint64_t data = instance->data;
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|     uint8_t* p = (uint8_t*)&data;
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| 
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|     uint8_t k = 0;
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| 
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|     k = ~p[4];
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|     p[5] = ~p[5];
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|     p[4] = ~p[2];
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|     p[2] = ~p[0];
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|     p[0] = k;
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|     k = ~p[3];
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|     p[3] = ~p[1];
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|     p[1] = k;
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| 
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|     for(uint8_t y = 0; y < 2; y++) {
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|         k = subghz_protocol_nice_flor_s_get_byte_in_file(file_name, p[0] >> 3) + 0x25;
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|         subghz_protocol_decoder_nice_flor_s_magic_xor(p, k);
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| 
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|         p[5] &= 0x0f;
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|         p[0] ^= k & 0x7;
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|         k = subghz_protocol_nice_flor_s_get_byte_in_file(file_name, p[0] & 0x1f);
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|         subghz_protocol_decoder_nice_flor_s_magic_xor(p, k);
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| 
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|         p[5] &= 0x0f;
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|         p[0] ^= k & 0xe0;
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| 
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|         if(y == 0) {
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|             k = p[0];
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|             p[0] = p[1];
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|             p[1] = k;
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|         }
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|     }
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|     return data;
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| }
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| 
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| void* subghz_protocol_decoder_nice_flor_s_alloc(SubGhzEnvironment* environment) {
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|     SubGhzProtocolDecoderNiceFlorS* instance = malloc(sizeof(SubGhzProtocolDecoderNiceFlorS));
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|     instance->base.protocol = &subghz_protocol_nice_flor_s;
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|     instance->generic.protocol_name = instance->base.protocol->name;
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|     instance->nice_flor_s_rainbow_table_file_name =
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|         subghz_environment_get_nice_flor_s_rainbow_table_file_name(environment);
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|     if(instance->nice_flor_s_rainbow_table_file_name) {
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|         FURI_LOG_I(
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|             TAG, "Loading rainbow table from %s", instance->nice_flor_s_rainbow_table_file_name);
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|     }
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|     return instance;
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| }
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| 
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| void subghz_protocol_decoder_nice_flor_s_free(void* context) {
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|     furi_assert(context);
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|     SubGhzProtocolDecoderNiceFlorS* instance = context;
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|     instance->nice_flor_s_rainbow_table_file_name = NULL;
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|     free(instance);
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| }
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| 
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| void subghz_protocol_decoder_nice_flor_s_reset(void* context) {
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|     furi_assert(context);
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|     SubGhzProtocolDecoderNiceFlorS* instance = context;
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|     instance->decoder.parser_step = NiceFlorSDecoderStepReset;
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| }
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| 
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| void subghz_protocol_decoder_nice_flor_s_feed(void* context, bool level, uint32_t duration) {
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|     furi_assert(context);
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|     SubGhzProtocolDecoderNiceFlorS* instance = context;
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| 
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|     switch(instance->decoder.parser_step) {
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|     case NiceFlorSDecoderStepReset:
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|         if((!level) && (DURATION_DIFF(duration, subghz_protocol_nice_flor_s_const.te_short * 38) <
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|                         subghz_protocol_nice_flor_s_const.te_delta * 38)) {
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|             //Found start header Nice Flor-S
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|             instance->decoder.parser_step = NiceFlorSDecoderStepCheckHeader;
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|         }
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|         break;
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|     case NiceFlorSDecoderStepCheckHeader:
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|         if((level) && (DURATION_DIFF(duration, subghz_protocol_nice_flor_s_const.te_short * 3) <
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|                        subghz_protocol_nice_flor_s_const.te_delta * 3)) {
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|             //Found next header Nice Flor-S
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|             instance->decoder.parser_step = NiceFlorSDecoderStepFoundHeader;
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|         } else {
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|             instance->decoder.parser_step = NiceFlorSDecoderStepReset;
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|         }
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|         break;
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|     case NiceFlorSDecoderStepFoundHeader:
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|         if((!level) && (DURATION_DIFF(duration, subghz_protocol_nice_flor_s_const.te_short * 3) <
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|                         subghz_protocol_nice_flor_s_const.te_delta * 3)) {
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|             //Found header Nice Flor-S
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|             instance->decoder.parser_step = NiceFlorSDecoderStepSaveDuration;
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|             instance->decoder.decode_data = 0;
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|             instance->decoder.decode_count_bit = 0;
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|         } else {
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|             instance->decoder.parser_step = NiceFlorSDecoderStepReset;
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|         }
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|         break;
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|     case NiceFlorSDecoderStepSaveDuration:
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|         if(level) {
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|             if(DURATION_DIFF(duration, subghz_protocol_nice_flor_s_const.te_short * 3) <
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|                subghz_protocol_nice_flor_s_const.te_delta) {
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|                 //Found STOP bit
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|                 instance->decoder.parser_step = NiceFlorSDecoderStepReset;
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|                 if((instance->decoder.decode_count_bit ==
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|                     subghz_protocol_nice_flor_s_const.min_count_bit_for_found) ||
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|                    (instance->decoder.decode_count_bit == NICE_ONE_COUNT_BIT)) {
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|                     instance->generic.data = instance->data;
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|                     instance->data = instance->decoder.decode_data;
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|                     instance->decoder.decode_data = instance->generic.data;
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|                     instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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| 
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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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|                 break;
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|             } else {
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|                 //save interval
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|                 instance->decoder.te_last = duration;
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|                 instance->decoder.parser_step = NiceFlorSDecoderStepCheckDuration;
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|             }
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|         }
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|         break;
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|     case NiceFlorSDecoderStepCheckDuration:
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|         if(!level) {
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|             if((DURATION_DIFF(
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|                     instance->decoder.te_last, subghz_protocol_nice_flor_s_const.te_short) <
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|                 subghz_protocol_nice_flor_s_const.te_delta) &&
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|                (DURATION_DIFF(duration, subghz_protocol_nice_flor_s_const.te_long) <
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|                 subghz_protocol_nice_flor_s_const.te_delta)) {
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|                 subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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|                 instance->decoder.parser_step = NiceFlorSDecoderStepSaveDuration;
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|             } else if(
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|                 (DURATION_DIFF(
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|                      instance->decoder.te_last, subghz_protocol_nice_flor_s_const.te_long) <
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|                  subghz_protocol_nice_flor_s_const.te_delta) &&
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|                 (DURATION_DIFF(duration, subghz_protocol_nice_flor_s_const.te_short) <
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|                  subghz_protocol_nice_flor_s_const.te_delta)) {
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|                 subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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|                 instance->decoder.parser_step = NiceFlorSDecoderStepSaveDuration;
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|             } else
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|                 instance->decoder.parser_step = NiceFlorSDecoderStepReset;
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|         } else {
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|             instance->decoder.parser_step = NiceFlorSDecoderStepReset;
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|         }
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|         if(instance->decoder.decode_count_bit ==
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|            subghz_protocol_nice_flor_s_const.min_count_bit_for_found) {
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|             instance->data = instance->decoder.decode_data;
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|             instance->decoder.decode_data = 0;
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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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| /** 
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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_nice_flor_s_remote_controller(
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|     SubGhzBlockGeneric* instance,
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|     const char* file_name) {
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|     /*
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|     * Protocol Nice Flor-S
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|     * Packet format Nice Flor-s: START-P0-P1-P2-P3-P4-P5-P6-P7-STOP
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|     * P0 (4-bit)    - button positional code - 1:0x1, 2:0x2, 3:0x4, 4:0x8;
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|     * P1 (4-bit)    - batch repetition number, calculated by the formula:
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|     * P1 = 0xF ^ P0 ^ n; where n changes from 1 to 15, then 0, and then in a circle
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|     * key 1: {0xE,0xF,0xC,0xD,0xA,0xB,0x8,0x9,0x6,0x7,0x4,0x5,0x2,0x3,0x0,0x1};
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|     * key 2: {0xD,0xC,0xF,0xE,0x9,0x8,0xB,0xA,0x5,0x4,0x7,0x6,0x1,0x0,0x3,0x2};
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|     * key 3: {0xB,0xA,0x9,0x8,0xF,0xE,0xD,0xC,0x3,0x2,0x1,0x0,0x7,0x6,0x5,0x4};
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|     * key 4: {0x7,0x6,0x5,0x4,0x3,0x2,0x1,0x0,0xF,0xE,0xD,0xC,0xB,0xA,0x9,0x8};
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|     * P2 (4-bit)    - part of the serial number, P2 = (K ^ S3) & 0xF;
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|     * P3 (byte)     - the major part of the encrypted index
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|     * P4 (byte)     - the low-order part of the encrypted index
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|     * P5 (byte)     - part of the serial number, P5 = K ^ S2;
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|     * P6 (byte)     - part of the serial number, P6 = K ^ S1;
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|     * P7 (byte)     - part of the serial number, P7 = K ^ S0;
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|     * K (byte)      - depends on P3 and P4, K = Fk(P3, P4);
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|     * S3,S2,S1,S0   - serial number of the console 28 bit.
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|     *
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|     * data    => 0x1c5783607f7b3     key  serial  cnt
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|     * decrypt => 0x10436c6820444 => 0x1  0436c682 0444
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|     * 
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|     * Protocol Nice One
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|     * Generally repeats the Nice Flor-S protocol, but there are a few changes
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|     * Packet format first 52 bytes repeat Nice Flor-S protocol
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|     * The additional 20 bytes contain the code of the pressed button,
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|     *    the button hold bit and the CRC of the entire message.
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|     *       START-P0-P1-P2-P3-P4-P5-P6-P7-P8-P9-P10-STOP
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|     * P7 (byte)     - if (n<4) k=0x8f : k=0x80; P7= k^n;
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|     * P8 (byte)     - if (hold bit) b=0x00 : b=0x10; P8= b^(k<<4) | 4 hi bit crc
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|     * P10 (4-bit)   - 4 lo bit crc 
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|     *                            key+b crc  
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|     * data    => 0x1724A7D9A522F  899  D6 hold bit = 0 - just pressed the button
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|     * data    => 0x1424A7D9A522F  8AB  03 hold bit = 1 - button hold
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|     * 
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|     * A small button hold counter (0..15) is stored between each press,
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|     *  i.e. if 1 press of the button stops counter 6, then the next press 
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|     *  of the button will start from the value 7 (hold bit = 0), 8 (hold bit = 1)...
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|     *  further up to 15 with overflow
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|     * 
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|     */
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|     if(!file_name) {
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|         instance->cnt = 0;
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|         instance->serial = 0;
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|         instance->btn = 0;
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|     } else {
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|         uint64_t decrypt = subghz_protocol_nice_flor_s_decrypt(instance, file_name);
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|         instance->cnt = decrypt & 0xFFFF;
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|         instance->serial = (decrypt >> 16) & 0xFFFFFFF;
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|         instance->btn = (decrypt >> 48) & 0xF;
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|     }
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| }
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| 
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| uint8_t subghz_protocol_decoder_nice_flor_s_get_hash_data(void* context) {
 | |
|     furi_assert(context);
 | |
|     SubGhzProtocolDecoderNiceFlorS* instance = context;
 | |
|     return subghz_protocol_blocks_get_hash_data(
 | |
|         &instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
 | |
| }
 | |
| 
 | |
| SubGhzProtocolStatus subghz_protocol_decoder_nice_flor_s_serialize(
 | |
|     void* context,
 | |
|     FlipperFormat* flipper_format,
 | |
|     SubGhzRadioPreset* preset) {
 | |
|     furi_assert(context);
 | |
|     SubGhzProtocolDecoderNiceFlorS* instance = context;
 | |
|     SubGhzProtocolStatus ret =
 | |
|         subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
 | |
|     if(instance->generic.data_count_bit == NICE_ONE_COUNT_BIT) {
 | |
|         if((ret == SubGhzProtocolStatusOk) &&
 | |
|            !flipper_format_write_uint32(flipper_format, "Data", (uint32_t*)&instance->data, 1)) {
 | |
|             FURI_LOG_E(TAG, "Unable to add Data");
 | |
|             ret = SubGhzProtocolStatusErrorParserOthers;
 | |
|         }
 | |
|     }
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| SubGhzProtocolStatus
 | |
|     subghz_protocol_decoder_nice_flor_s_deserialize(void* context, FlipperFormat* flipper_format) {
 | |
|     furi_assert(context);
 | |
|     SubGhzProtocolDecoderNiceFlorS* instance = context;
 | |
|     SubGhzProtocolStatus ret = SubGhzProtocolStatusError;
 | |
|     do {
 | |
|         ret = subghz_block_generic_deserialize(&instance->generic, flipper_format);
 | |
|         if(ret != SubGhzProtocolStatusOk) {
 | |
|             break;
 | |
|         }
 | |
|         if((instance->generic.data_count_bit !=
 | |
|             subghz_protocol_nice_flor_s_const.min_count_bit_for_found) &&
 | |
|            (instance->generic.data_count_bit != NICE_ONE_COUNT_BIT)) {
 | |
|             FURI_LOG_E(TAG, "Wrong number of bits in key");
 | |
|             ret = SubGhzProtocolStatusErrorValueBitCount;
 | |
|             break;
 | |
|         }
 | |
|         if(instance->generic.data_count_bit == NICE_ONE_COUNT_BIT) {
 | |
|             if(!flipper_format_rewind(flipper_format)) {
 | |
|                 FURI_LOG_E(TAG, "Rewind error");
 | |
|                 ret = SubGhzProtocolStatusErrorParserOthers;
 | |
|                 break;
 | |
|             }
 | |
|             uint32_t temp = 0;
 | |
|             if(!flipper_format_read_uint32(flipper_format, "Data", (uint32_t*)&temp, 1)) {
 | |
|                 FURI_LOG_E(TAG, "Missing Data");
 | |
|                 ret = SubGhzProtocolStatusErrorParserOthers;
 | |
|                 break;
 | |
|             }
 | |
|             instance->data = (uint64_t)temp;
 | |
|         }
 | |
|     } while(false);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| void subghz_protocol_decoder_nice_flor_s_get_string(void* context, FuriString* output) {
 | |
|     furi_assert(context);
 | |
|     SubGhzProtocolDecoderNiceFlorS* instance = context;
 | |
| 
 | |
|     subghz_protocol_nice_flor_s_remote_controller(
 | |
|         &instance->generic, instance->nice_flor_s_rainbow_table_file_name);
 | |
| 
 | |
|     if(instance->generic.data_count_bit == NICE_ONE_COUNT_BIT) {
 | |
|         furi_string_cat_printf(
 | |
|             output,
 | |
|             "%s %dbit\r\n"
 | |
|             "Key:0x%013llX%llX\r\n"
 | |
|             "Sn:%05lX\r\n"
 | |
|             "Cnt:%04lX Btn:%02X\r\n",
 | |
|             NICE_ONE_NAME,
 | |
|             instance->generic.data_count_bit,
 | |
|             instance->generic.data,
 | |
|             instance->data,
 | |
|             instance->generic.serial,
 | |
|             instance->generic.cnt,
 | |
|             instance->generic.btn);
 | |
|     } else {
 | |
|         furi_string_cat_printf(
 | |
|             output,
 | |
|             "%s %dbit\r\n"
 | |
|             "Key:0x%013llX\r\n"
 | |
|             "Sn:%05lX\r\n"
 | |
|             "Cnt:%04lX Btn:%02X\r\n",
 | |
|             instance->generic.protocol_name,
 | |
|             instance->generic.data_count_bit,
 | |
|             instance->generic.data,
 | |
|             instance->generic.serial,
 | |
|             instance->generic.cnt,
 | |
|             instance->generic.btn);
 | |
|     }
 | |
| }
 |