389 lines
6.9 KiB
Dart
Executable File
389 lines
6.9 KiB
Dart
Executable File
import 'dart:typed_data';
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import 'package:star_lock/app_settings/app_settings.dart';
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import 'io_tool/io_manager.dart';
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import 'io_tool/io_tool.dart';
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import 'io_type.dart';
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abstract class IOData {
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List<int> messageDetail();
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}
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abstract class SenderProtocol extends IOData {
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// var uint8View1 = Uint8List(300);
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CommandType? commandType; //指令类型
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final List<int> header = [
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0XEF,
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0X01,
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0XEE,
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0X02
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]; //帧头 固定取值 0XEF01EE02，长度 4 字节
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final int ask = 0X01; // 包类型：0X01 表示请求包，0X11 表示应答包，长度 1 字节
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int? _commandIndex = 1; //包序号
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int identifier =
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0x20; // 高 4 位表示包版本，低 4 位用来指示后面数据的加密类型，长度为 1 字节，加密类型取值说明，0：明文，1：AES128，2：SM4（事先约定密钥），3：SM4（设备指定密钥）
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List<int>? commandData = []; //数据块
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// final int? tail = 0xFF; //用来校验包的完整性，采用 CRC 校验方法，长度为 2 个字节
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SenderProtocol(this.commandType) {
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_commandIndex = IoManager().commandIndex;
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}
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void printLog(List<int> data) {
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AppLog.log(
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"App -> 锁，指令类型:${commandType!.typeName} ${commandType!.typeValue == 0x3030
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? '子命令：${data[3]}' : ''} \n参数是:\n${toString()} \n加密之前数据是:\n$data 长度是:${data.length}");
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}
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//TODO:拼装数据
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List<int> packageData() {
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commandData = messageDetail();
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List<int> commandList = [];
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// 帧头
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commandList.addAll(header);
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//包类型
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commandList.add(ask); //包类型
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// 包序号
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int commandIndexChange = _commandIndex!;
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double commandIndexChangeDouble = commandIndexChange / 256;
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int commandIndexChang1 = commandIndexChangeDouble.toInt();
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int commandIndexChang2 = commandIndexChange % 256;
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commandList.add(commandIndexChang1);
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commandList.add(commandIndexChang2);
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// 包标识
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// 指令类型 高 4 位表示包版本，低 4 位用来指示后面数据的加密类型，长度为 1 字节，加密类型取值说明，0：明文，1：AES128，2：SM4（事先约定密钥），3：SM4（设备指定密钥）
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int value = identifierValue();
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commandList.add(value);
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// 数据长度
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int dataLen = dataSourceLength();
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// commandList.add(dataLength);
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// var dataLen = 42;
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double dataLength = dataLen / 256;
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commandList.add(dataLength.toInt());
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commandList.add(dataLen % 256);
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commandList.add(dataLength.toInt());
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commandList.add(dataLen % 256);
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// 数据块
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commandList.addAll(commandData!); //数据块
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// 校验位
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var mcrc = crc_16(commandList);
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double mcrcDouble = mcrc / 256;
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int mcrcDouble1 = mcrcDouble.toInt();
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int mcrcDouble2 = mcrc % 256;
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commandList.add(mcrcDouble1); //帧尾
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commandList.add(mcrcDouble2);
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return commandList;
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}
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// 包标识
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// 指令类型 高 4 位表示包版本，低 4 位用来指示后面数据的加密类型，长度为 1 字节，加密类型取值说明，0：明文，1：AES128，2：SM4（事先约定密钥），3：SM4（设备指定密钥）
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int identifierValue() => commandType!.identifierValue;
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//TODO:长度
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int dataSourceLength() => commandData!.length;
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var crcTable = [
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0x0000,
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0x1021,
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0x2042,
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0x3063,
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0x4084,
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0x50a5,
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0x60c6,
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0x70e7,
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0x8108,
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0x9129,
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0xa14a,
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0xb16b,
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0xc18c,
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0xd1ad,
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0xe1ce,
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0xf1ef,
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0x1231,
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0x0210,
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0x3273,
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0x2252,
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0x52b5,
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0x4294,
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0x72f7,
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0x62d6,
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0x9339,
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0x8318,
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0xb37b,
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0xa35a,
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0xd3bd,
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0xc39c,
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0xf3ff,
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0xe3de,
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0x2462,
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0x3443,
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0x0420,
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0x1401,
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0x64e6,
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0x74c7,
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0x44a4,
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0x5485,
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0xa56a,
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0xb54b,
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0x8528,
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0x9509,
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0xe5ee,
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0xf5cf,
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0xc5ac,
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0xd58d,
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0x3653,
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0x2672,
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0x1611,
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0x0630,
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0x76d7,
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0x66f6,
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0x5695,
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0x46b4,
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0xb75b,
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0xa77a,
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0x9719,
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0x8738,
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0xf7df,
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0xe7fe,
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0xd79d,
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0xc7bc,
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0x48c4,
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0x58e5,
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0x6886,
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0x78a7,
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0x0840,
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0x1861,
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0x2802,
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0x3823,
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0xc9cc,
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0xd9ed,
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0xe98e,
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0xf9af,
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0x8948,
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0x9969,
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0xa90a,
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0xb92b,
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0x5af5,
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0x4ad4,
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0x7ab7,
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0x6a96,
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0x1a71,
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0x0a50,
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0x3a33,
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0x2a12,
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0xdbfd,
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0xcbdc,
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0xfbbf,
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0xeb9e,
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0x9b79,
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0x8b58,
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0xbb3b,
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0xab1a,
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0x6ca6,
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0x7c87,
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0x4ce4,
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0x5cc5,
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0x2c22,
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0x3c03,
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0x0c60,
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0x1c41,
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0xedae,
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0xfd8f,
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0xcdec,
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0xddcd,
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0xad2a,
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0xbd0b,
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0x8d68,
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0x9d49,
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0x7e97,
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0x6eb6,
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0x5ed5,
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0x4ef4,
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0x3e13,
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0x2e32,
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0x1e51,
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0x0e70,
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0xff9f,
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0xefbe,
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0xdfdd,
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0xcffc,
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0xbf1b,
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0xaf3a,
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0x9f59,
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0x8f78,
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0x9188,
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0x81a9,
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0xb1ca,
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0xa1eb,
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0xd10c,
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0xc12d,
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0xf14e,
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0xe16f,
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0x1080,
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0x00a1,
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0x30c2,
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0x20e3,
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0x5004,
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0x4025,
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0x7046,
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0x6067,
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0x83b9,
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0x9398,
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0xa3fb,
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0xb3da,
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0xc33d,
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0xd31c,
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0xe37f,
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0xf35e,
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0x02b1,
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0x1290,
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0x22f3,
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0x32d2,
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0x4235,
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0x5214,
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0x6277,
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0x7256,
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0xb5ea,
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0xa5cb,
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0x95a8,
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0x8589,
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0xf56e,
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0xe54f,
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0xd52c,
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0xc50d,
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0x34e2,
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0x24c3,
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0x14a0,
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0x0481,
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0x7466,
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0x6447,
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0x5424,
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0x4405,
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0xa7db,
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0xb7fa,
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0x8799,
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0x97b8,
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0xe75f,
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0xf77e,
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0xc71d,
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0xd73c,
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0x26d3,
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0x36f2,
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0x0691,
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0x16b0,
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0x6657,
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0x7676,
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0x4615,
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0x5634,
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0xd94c,
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0xc96d,
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0xf90e,
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0xe92f,
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0x99c8,
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0x89e9,
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0xb98a,
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0xa9ab,
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0x5844,
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0x4865,
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0x7806,
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0x6827,
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0x18c0,
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0x08e1,
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0x3882,
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0x28a3,
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0xcb7d,
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0xdb5c,
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0xeb3f,
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0xfb1e,
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0x8bf9,
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0x9bd8,
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0xabbb,
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0xbb9a,
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0x4a75,
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0x5a54,
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0x6a37,
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0x7a16,
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0x0af1,
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0x1ad0,
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0x2ab3,
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0x3a92,
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0xfd2e,
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0xed0f,
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0xdd6c,
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0xcd4d,
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0xbdaa,
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0xad8b,
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0x9de8,
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0x8dc9,
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0x7c26,
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0x6c07,
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0x5c64,
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0x4c45,
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0x3ca2,
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0x2c83,
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0x1ce0,
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0x0cc1,
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0xef1f,
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0xff3e,
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0xcf5d,
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0xdf7c,
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0xaf9b,
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0xbfba,
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0x8fd9,
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0x9ff8,
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0x6e17,
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0x7e36,
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0x4e55,
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0x5e74,
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0x2e93,
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0x3eb2,
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0x0ed1,
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0x1ef0
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];
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int crc_16(buffer) {
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var len = buffer.length;
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var value_ = 0x0000; //0xa635; //初始值，根据CRC类型设定
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var tmp;
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for (var i = 0; i < buffer.length; i++) {
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tmp = reverse8(buffer[i]);
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value_ =
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((value_ << 8) ^ crcTable[((value_ >> 8) ^ tmp) & 0xFF]) & 0xFFFF;
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}
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value_ = reverse16(value_);
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return value_;
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}
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int reverse8(data) {
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var i;
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var temp = 0;
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for (i = 0; i < 8; i++) {
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//字节反转
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temp |= ((data >> i) & 0x01) << (7 - i);
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}
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return temp;
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}
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int reverse16(data) {
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var i;
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var temp = 0;
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for (i = 0; i < 16; i++) {
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//反转
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temp |= ((data >> i) & 0x0001) << (15 - i);
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}
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return temp;
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}
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}
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