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package FLXNetworkController
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"io/ioutil"
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"net"
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"strconv"
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"strings"
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log "github.com/sirupsen/logrus"
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"golang.org/x/text/encoding/simplifiedchinese"
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"golang.org/x/text/transform"
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)
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type FlxNetworkCmdReader struct {
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BufferMaxLength int //最大缓冲长度
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TCPClientConnect *net.Conn
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CurrentSocket *net.TCPConn //TCP连接
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BackUpSocket *net.TCPConn //备份TCP连接
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RecThreadIsWorking bool //是否开始接受
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TCPWorking bool
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tmpRecDataBuffer []byte //缓冲字节
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tmpRecBackUpDataBuffer []byte //缓冲字节
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InvokeOnReviceData func(Compacket) //外部委托
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// IfUse bool
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// TranBuffer []byte //
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// TranPosion int
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}
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func (para *FlxNetworkCmdReader) InitPara() {
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defer func() {
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if r := recover(); r != nil {
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log.Error("InitPara:", r)
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}
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}()
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/// <summary>缓冲区大小</summary>
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//protected const int BufferMaxLength = 51200;
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para.BufferMaxLength = 4096
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/// <summary>端口数据处理锁</summary>
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//para.CheckLock = new Object();
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// para.TranBuffer = make([]byte, para.BufferMaxLength)
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// para.TranPosion = 0
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// /// <summary>接收到业务数据后触发事件</summary>
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// public event BusinessDataReciveEventHandler OnBusinessDataReciveEventHandler;
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// /// <summary>读端口数据时发生的日志信息</summary>
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// public event DataReciveLogHandler OnDataReciveLogHandler;
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// public event DataReciveHandler OnDataReciveHandler;
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// para.IfUse = false
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}
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var ClientPort int = 9668
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// UDP监听
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func (para *FlxNetworkCmdReader) UPDStart() {
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defer func() {
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if r := recover(); r != nil {
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log.Error("UPDStart:", r)
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}
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}()
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// 创建监听
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socket, err := net.ListenUDP("udp4", &net.UDPAddr{
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IP: net.IPv4(0, 0, 0, 0),
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Port: ClientPort,
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})
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if err != nil {
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fmt.Println("监听失败!", err)
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return
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}
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defer socket.Close()
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for para.RecThreadIsWorking {
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// 读取数据
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data := make([]byte, 4096)
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read, remoteAddr, err := socket.ReadFromUDP(data)
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if err != nil {
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fmt.Println("读取数据失败!", err)
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continue
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}
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fmt.Println("接收到UDP数据：长度为：", read, "--远程IP:", remoteAddr)
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fmt.Printf("%s\n\n", data)
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curIndex := 0
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length := 0
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RecvBuffer := data[:read]
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for curIndex <= len(RecvBuffer)-7 {
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//判断是否出现 7E开头
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if RecvBuffer[curIndex] == FlxNetworkComPara_CMD_HEAD {
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if RecvBuffer[curIndex+3] > 8 {
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curIndex++
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continue
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}
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length = int(RecvBuffer[curIndex+3])*256 + int(RecvBuffer[curIndex+4]) + 7
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if length <= len(RecvBuffer)-curIndex {
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para.UDPValidateRecvBuffer(length, RecvBuffer, curIndex, remoteAddr.IP.String())
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curIndex = curIndex + length
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} else {
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break
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}
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} else {
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curIndex++
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}
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}
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}
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}
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func (para *FlxNetworkCmdReader) UDPValidateRecvBuffer(packLen int, RecvBuffer []byte, startIndex int, ReIP string) bool {
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defer func() {
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if r := recover(); r != nil {
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log.Error("UDPValidateRecvBuffer:", r)
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}
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}()
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PackBuff := make([]byte, packLen)
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PackBuff = RecvBuffer[startIndex : startIndex+packLen]
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//校验CRC
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CRCBuff := CRCCheck12(PackBuff[:packLen-2])
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if CRCBuff[0] != PackBuff[packLen-2] || CRCBuff[1] != PackBuff[packLen-1] {
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//InvokeOnDataReciveLogHandler(string.Format(FlxNetCCUConstantText.ReciveDataBufferImperfect_Error, "飞利信网口中控机")); //--写日志
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return false
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} else {
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para.InvokeOnReviceData(CreatCMDPack(ReIP, PackBuff))
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// para.InvokeOnReviceData(CreatCMDPack(PackBuff, packLen-2))
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//外发事件。
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return true
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}
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}
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func (para *FlxNetworkCmdReader) InitCoon(socket *net.TCPConn, backupsocket *net.TCPConn) {
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defer func() {
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if r := recover(); r != nil {
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log.Error("InitCoon:", r)
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}
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}()
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para.CurrentSocket = socket
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para.BackUpSocket = backupsocket
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}
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// 事件
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// protected void InvokeOnDataReciveLogHandler(string logMessage)
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// {
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// if (OnDataReciveLogHandler != null) OnDataReciveLogHandler(logMessage);
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// }
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// protected void InvokeOnBusinessDataReviceData(ComPacket comPacket)
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// {
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// if (OnBusinessDataReciveEventHandler != null)
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// OnBusinessDataReciveEventHandler(comPacket);
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// }
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// 端口数据的处理
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// func CreatCMDPack(rcvBuff []byte, length int) Compacket {
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// var packet Compacket
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// if length >= 12 {
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// packet.CmdType = rcvBuff[1]
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// packet.ChnlID = rcvBuff[2]
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// packet.Addr = rcvBuff[3]
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// packet.Cmd = rcvBuff[4]
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// packet.Const = rcvBuff[5]
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// packet.ACmdData1 = rcvBuff[6]
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// packet.ACmdData2 = rcvBuff[7]
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// packet.ACmdData3 = rcvBuff[8]
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// packet.ACmdData4 = rcvBuff[9]
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// //if (true)
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// //{
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// // packet.ChnlID = packet.ACmdData4;
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// //}
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// packet.LenH = rcvBuff[10]
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// packet.LenL = rcvBuff[11]
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// if length > 12 {
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// index := 12
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// packet.Data = make([]byte, length-index)
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// for i := 0; index < length; index++ {
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// packet.Data[i] = rcvBuff[index]
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// i++
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// }
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// }
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// return packet
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// }
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// return packet
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// }
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func CreatCMDPack(reip string, rcvBuff []byte) Compacket {
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defer func() {
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if r := recover(); r != nil {
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log.Error("CreatCMDPack:", r)
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}
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}()
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var packet Compacket
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if len(rcvBuff) < 5 {
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return packet
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}
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reips := strings.Split(reip, ".")
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packet.CmdType = 0x01
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ip2, _ := strconv.Atoi(reips[2])
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packet.ChnlID = byte(ip2)
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ip3, _ := strconv.Atoi(reips[3])
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packet.Addr = byte(ip3)
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packet.IPAddress = reip
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packet.Cmd = rcvBuff[1]
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packet.Const = rcvBuff[2]
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packet.LenH = rcvBuff[3]
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packet.LenL = rcvBuff[4]
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if len(rcvBuff) <= 7 {
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return packet
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}
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packet.Data = make([]byte, packet.LenH*255+packet.LenL)
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packet.Data = rcvBuff[5 : packet.LenH*255+packet.LenL+5]
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return packet
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}
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func (para *FlxNetworkCmdReader) ProcessRecvBuff(RecvBuffer []byte, ReIP string) {
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defer func() {
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if r := recover(); r != nil {
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log.Error("ProcessRecvBuff:", r)
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}
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}()
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startIndex := 0
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curIndex := 0
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length := 0
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//判断是否大于14字节
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for curIndex <= len(RecvBuffer)-7 {
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//判断是否出现 7E开头
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if RecvBuffer[curIndex] == FlxNetworkComPara_CMD_HEAD {
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if RecvBuffer[curIndex+3] > 8 {
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//System.Windows.Forms.CMessageBox.Show("数据出错！");
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curIndex++
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continue
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}
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length = int(RecvBuffer[curIndex+3])*256 + int(RecvBuffer[curIndex+4]) + 7
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if length <= len(RecvBuffer)-curIndex {
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para.ValidateRecvBuffer(length, RecvBuffer, curIndex, ReIP)
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curIndex = curIndex + length
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startIndex = curIndex
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} else {
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para.tmpRecDataBuffer = append(para.tmpRecDataBuffer, RecvBuffer[curIndex:]...)
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startIndex = -1
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}
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} else {
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curIndex++
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}
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}
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if startIndex >= 0 && startIndex < len(RecvBuffer) {
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para.tmpRecDataBuffer = append(para.tmpRecDataBuffer, RecvBuffer[curIndex:]...)
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}
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}
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func (para *FlxNetworkCmdReader) ValidateRecvBuffer(packLen int, RecvBuffer []byte, startIndex int, ReIP string) bool {
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defer func() {
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if r := recover(); r != nil {
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log.Error("ValidateRecvBuffer:", r)
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}
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}()
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PackBuff := make([]byte, packLen)
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PackBuff = RecvBuffer[startIndex : startIndex+packLen]
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//校验CRC
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// data := []byte{0x7E, 0x30, 0x11, 0x00, 0x00}
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// CRCBuff := CRCCheck12(data)
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para.InvokeOnReviceData(CreatCMDPack(ReIP, PackBuff))
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//cpcs发的时候没验证 先去掉
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|
|
|
// CRCBuff := CRCCheck12(PackBuff[:packLen-2])
|
|
|
|
|
|
// if CRCBuff[0] != PackBuff[packLen-2] || CRCBuff[1] != PackBuff[packLen-1] {
|
|
|
|
|
|
// //InvokeOnDataReciveLogHandler(string.Format(FlxNetCCUConstantText.ReciveDataBufferImperfect_Error, "飞利信网口中控机")); //--写日志
|
|
|
|
|
|
// return false
|
|
|
|
|
|
// } else {
|
|
|
|
|
|
|
|
|
|
|
|
// // para.InvokeOnReviceData(CreatCMDPack(PackBuff, packLen-2))
|
|
|
|
|
|
// //外发事件。
|
|
|
|
|
|
|
|
|
|
|
|
// return true
|
|
|
|
|
|
// }
|
|
|
|
|
|
return true
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// /TCP接收数据
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) TCPCallbackHandler() {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("TCPCallbackHandler:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
//waitReadPackLen := 0 //待读的字节长度
|
|
|
|
|
|
//length := 0 //放入缓冲区的长度。
|
|
|
|
|
|
//tmpStr := "" //日志字符串。
|
|
|
|
|
|
reciveData := make([]byte, 65535)
|
|
|
|
|
|
for para.TCPWorking {
|
|
|
|
|
|
|
|
|
|
|
|
//读取
|
|
|
|
|
|
|
|
|
|
|
|
waitReadPackLen, err := para.CurrentSocket.Read(reciveData)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
fmt.Println("TCP接受出现问题", err)
|
|
|
|
|
|
para.TCPWorking = false
|
|
|
|
|
|
}
|
|
|
|
|
|
if waitReadPackLen == 0 {
|
|
|
|
|
|
fmt.Println(err)
|
|
|
|
|
|
}
|
|
|
|
|
|
// data := make([]byte, waitReadPackLen)
|
|
|
|
|
|
|
|
|
|
|
|
data := reciveData[:waitReadPackLen]
|
|
|
|
|
|
|
|
|
|
|
|
// dataLen := binary.LittleEndian.Uint32(data[4:8])
|
|
|
|
|
|
// data = data[8 : 8+dataLen]
|
|
|
|
|
|
|
|
|
|
|
|
//当前包接收长度 加上 上次接收半包的长度
|
|
|
|
|
|
recvBuffer := make([]byte, len(para.tmpRecDataBuffer)+waitReadPackLen) //从端口读取数据的缓冲区
|
|
|
|
|
|
fmt.Println("接收到TCP数据：长度为：", waitReadPackLen, "--远程IP:", para.CurrentSocket.RemoteAddr())
|
|
|
|
|
|
//上次如果为半包
|
|
|
|
|
|
if len(para.tmpRecDataBuffer) > 0 {
|
|
|
|
|
|
recvBuffer = insertToSlice(0, para.tmpRecDataBuffer, recvBuffer)
|
|
|
|
|
|
}
|
|
|
|
|
|
recvBuffer = insertToSlice(len(para.tmpRecDataBuffer), data, recvBuffer)
|
|
|
|
|
|
para.tmpRecDataBuffer = para.tmpRecDataBuffer[0:0]
|
|
|
|
|
|
// recvBuffer = append(para.tmpRecDataBuffer, data...)
|
|
|
|
|
|
//读取当前包的数据
|
|
|
|
|
|
//Array.Copy(data, 0, recvBuffer, index, waitReadPackLen) //读来的数据先零时放入这个缓冲区
|
|
|
|
|
|
|
|
|
|
|
|
para.ProcessRecvBuff(recvBuffer, strings.Split(para.CurrentSocket.RemoteAddr().String(), ":")[0])
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// /TCP接收数据
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) BackUpTCPCallbackHandler() {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("BackUpTCPCallbackHandler:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
//waitReadPackLen := 0 //待读的字节长度
|
|
|
|
|
|
//length := 0 //放入缓冲区的长度。
|
|
|
|
|
|
//tmpStr := "" //日志字符串。
|
|
|
|
|
|
reciveData := make([]byte, 65535)
|
|
|
|
|
|
for para.TCPWorking {
|
|
|
|
|
|
|
|
|
|
|
|
//读取
|
|
|
|
|
|
|
|
|
|
|
|
waitReadPackLen, err := para.BackUpSocket.Read(reciveData)
|
|
|
|
|
|
if err != nil {
|
|
|
|
|
|
fmt.Println("备份TCP接受出现问题", err)
|
|
|
|
|
|
para.RecThreadIsWorking = false
|
|
|
|
|
|
}
|
|
|
|
|
|
if waitReadPackLen == 0 {
|
|
|
|
|
|
fmt.Println(err)
|
|
|
|
|
|
}
|
|
|
|
|
|
data := make([]byte, waitReadPackLen)
|
|
|
|
|
|
|
|
|
|
|
|
data = reciveData[:waitReadPackLen]
|
|
|
|
|
|
//当前包接收长度 加上 上次接收半包的长度
|
|
|
|
|
|
recvBuffer := make([]byte, len(para.tmpRecBackUpDataBuffer)+waitReadPackLen) //从端口读取数据的缓冲区
|
|
|
|
|
|
|
|
|
|
|
|
//上次如果为半包
|
|
|
|
|
|
if len(para.tmpRecBackUpDataBuffer) > 0 {
|
|
|
|
|
|
recvBuffer = insertToSlice(0, para.tmpRecBackUpDataBuffer, recvBuffer)
|
|
|
|
|
|
}
|
|
|
|
|
|
recvBuffer = insertToSlice(len(para.tmpRecBackUpDataBuffer), data, recvBuffer)
|
|
|
|
|
|
para.tmpRecBackUpDataBuffer = para.tmpRecBackUpDataBuffer[0:0]
|
|
|
|
|
|
// recvBuffer = append(para.tmpRecDataBuffer, data...)
|
|
|
|
|
|
//读取当前包的数据
|
|
|
|
|
|
//Array.Copy(data, 0, recvBuffer, index, waitReadPackLen) //读来的数据先零时放入这个缓冲区
|
|
|
|
|
|
|
|
|
|
|
|
para.BackUpProcessRecvBuff(recvBuffer, strings.Split(para.BackUpSocket.RemoteAddr().String(), ":")[0])
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) BackUpProcessRecvBuff(RecvBuffer []byte, ReIP string) {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("BackUpProcessRecvBuff:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
startIndex := 0
|
|
|
|
|
|
curIndex := 0
|
|
|
|
|
|
length := 0
|
|
|
|
|
|
//判断是否大于14字节
|
|
|
|
|
|
for curIndex <= len(RecvBuffer)-7 {
|
|
|
|
|
|
//判断是否出现 7E开头
|
|
|
|
|
|
if RecvBuffer[curIndex] == FlxNetworkComPara_CMD_HEAD {
|
|
|
|
|
|
if RecvBuffer[curIndex+3] > 8 {
|
|
|
|
|
|
|
|
|
|
|
|
//System.Windows.Forms.CMessageBox.Show("数据出错！");
|
|
|
|
|
|
curIndex++
|
|
|
|
|
|
continue
|
|
|
|
|
|
}
|
|
|
|
|
|
length = int(RecvBuffer[curIndex+3])*256 + int(RecvBuffer[curIndex+4]) + 7
|
|
|
|
|
|
if length <= len(RecvBuffer)-curIndex {
|
|
|
|
|
|
para.BackUpValidateRecvBuffer(length, RecvBuffer, curIndex, ReIP)
|
|
|
|
|
|
curIndex = curIndex + length
|
|
|
|
|
|
startIndex = curIndex
|
|
|
|
|
|
} else {
|
|
|
|
|
|
para.tmpRecBackUpDataBuffer = append(para.tmpRecBackUpDataBuffer, RecvBuffer[curIndex:]...)
|
|
|
|
|
|
startIndex = -1
|
|
|
|
|
|
}
|
|
|
|
|
|
} else {
|
|
|
|
|
|
curIndex++
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if startIndex >= 0 && startIndex < len(RecvBuffer) {
|
|
|
|
|
|
para.tmpRecBackUpDataBuffer = append(para.tmpRecBackUpDataBuffer, RecvBuffer[curIndex:]...)
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) BackUpValidateRecvBuffer(packLen int, RecvBuffer []byte, startIndex int, ReIP string) bool {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("BackUpValidateRecvBuffer:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
PackBuff := make([]byte, packLen)
|
|
|
|
|
|
PackBuff = RecvBuffer[startIndex : startIndex+packLen]
|
|
|
|
|
|
//校验CRC
|
|
|
|
|
|
CRCBuff := CRCCheck12(PackBuff[:packLen-2])
|
|
|
|
|
|
|
|
|
|
|
|
if CRCBuff[0] != PackBuff[packLen-2] || CRCBuff[1] != PackBuff[packLen-1] {
|
|
|
|
|
|
//InvokeOnDataReciveLogHandler(string.Format(FlxNetCCUConstantText.ReciveDataBufferImperfect_Error, "飞利信网口中控机")); //--写日志
|
|
|
|
|
|
return false
|
|
|
|
|
|
} else {
|
|
|
|
|
|
// para.InvokeOnReviceData(CreatCMDPack(PackBuff, packLen-2))
|
|
|
|
|
|
para.InvokeOnReviceData(CreatCMDPack(ReIP, PackBuff))
|
|
|
|
|
|
//外发事件。
|
|
|
|
|
|
|
|
|
|
|
|
return true
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) Start() bool {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("Start:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
para.RecThreadIsWorking = true
|
|
|
|
|
|
fmt.Println("数据接收开启")
|
|
|
|
|
|
|
|
|
|
|
|
go para.UPDStart()
|
|
|
|
|
|
return true
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) StartTCP() bool {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("StartTCP:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
para.TCPWorking = true
|
|
|
|
|
|
go para.TCPCallbackHandler()
|
|
|
|
|
|
// go para.BackUpTCPCallbackHandler()
|
|
|
|
|
|
return true
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) StartBackUpTCP() bool {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("StartBackUpTCP:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
para.TCPWorking = true
|
|
|
|
|
|
go para.BackUpTCPCallbackHandler()
|
|
|
|
|
|
return true
|
|
|
|
|
|
}
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) StopTCP() bool {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("StopTCP:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
para.TCPWorking = false
|
|
|
|
|
|
return true
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func (para *FlxNetworkCmdReader) Stop() bool {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("Stop:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
para.RecThreadIsWorking = false
|
|
|
|
|
|
return true
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// insertSlice 插入
|
|
|
|
|
|
func insertSlice(index int, newstr []byte, src []byte) (ns []byte) {
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("insertSlice:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
ns = append(ns, src[:index]...) // 切片后加..., 相当于拆包成单个元素
|
|
|
|
|
|
ns = append(ns, newstr...)
|
|
|
|
|
|
ns = append(ns, src[index+len(newstr):]...)
|
|
|
|
|
|
return
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func insertToSlice(index int, newstr []byte, src []byte) (ns []byte) {
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("insertToSlice:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
ns = append(ns, src[:index]...) // 切片后加..., 相当于拆包成单个元素
|
|
|
|
|
|
ns = append(ns, newstr...)
|
|
|
|
|
|
ns = append(ns, src[index:]...)
|
|
|
|
|
|
return
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// FullCheckSum CRC校验
|
|
|
|
|
|
// @description CRC校验
|
|
|
|
|
|
// @auth 刘富彦 时间（2020/5/26 10:57 ）
|
|
|
|
|
|
// @param 要检验的数据 []byte "解释"
|
|
|
|
|
|
// @return 合并后的数据 []byte "解释"
|
|
|
|
|
|
func FullCheckSum(buf []byte) []byte {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("FullCheckSum:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
buf = buf[:len(buf)-2]
|
|
|
|
|
|
var checksum uint16
|
|
|
|
|
|
checksum = 0xffff
|
|
|
|
|
|
for _, v := range buf {
|
|
|
|
|
|
n := uint8(uint16(v) ^ checksum)
|
|
|
|
|
|
//右移运算符（>>）将一个数的各二进制位全部右移若干位，正数左补0，负数左补1，右边丢弃,操作数每右移一位，相当于该数除以2,左补0 or 补1得看被移数是正还是负
|
|
|
|
|
|
checksum >>= 8
|
|
|
|
|
|
//异或运算 0^0=0； 0^1=1； 1^0=1； 1^1=0；
|
|
|
|
|
|
checksum ^= MbTable[n]
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int16buf := new(bytes.Buffer)
|
|
|
|
|
|
|
|
|
|
|
|
binary.Write(int16buf, binary.LittleEndian, checksum)
|
|
|
|
|
|
return append(buf, int16buf.Bytes()...)
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
func CRCCheck12(buf []byte) []byte {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("CRCCheck12:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
var checksum uint16
|
|
|
|
|
|
checksum = 0xffff
|
|
|
|
|
|
for _, v := range buf {
|
|
|
|
|
|
n := uint8(uint16(v) ^ checksum)
|
|
|
|
|
|
checksum >>= 8
|
|
|
|
|
|
checksum ^= MbTable[n]
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int16buf := new(bytes.Buffer)
|
|
|
|
|
|
|
|
|
|
|
|
binary.Write(int16buf, binary.LittleEndian, checksum)
|
|
|
|
|
|
return int16buf.Bytes()
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
var MbTable = []uint16{
|
|
|
|
|
|
0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
|
|
|
|
|
|
0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
|
|
|
|
|
|
0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
|
|
|
|
|
|
0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
|
|
|
|
|
|
0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
|
|
|
|
|
|
0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
|
|
|
|
|
|
0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
|
|
|
|
|
|
0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
|
|
|
|
|
|
0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
|
|
|
|
|
|
0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
|
|
|
|
|
|
0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
|
|
|
|
|
|
0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
|
|
|
|
|
|
0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
|
|
|
|
|
|
0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
|
|
|
|
|
|
0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
|
|
|
|
|
|
0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
|
|
|
|
|
|
0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
|
|
|
|
|
|
0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
|
|
|
|
|
|
0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
|
|
|
|
|
|
0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
|
|
|
|
|
|
0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
|
|
|
|
|
|
0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
|
|
|
|
|
|
0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
|
|
|
|
|
|
0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
|
|
|
|
|
|
0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
|
|
|
|
|
|
0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
|
|
|
|
|
|
0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
|
|
|
|
|
|
0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
|
|
|
|
|
|
0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
|
|
|
|
|
|
0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
|
|
|
|
|
|
0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
|
|
|
|
|
|
0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x8080}
|
|
|
|
|
|
|
|
|
|
|
|
/// 初始化
|
|
|
|
|
|
/// <summary>发送设备切换成主命令</summary>
|
|
|
|
|
|
|
|
|
|
|
|
/// <summary>发送设备查询命令，由阅读类接收状态信息</summary>
|
|
|
|
|
|
//public virtual void ScanDevices()
|
|
|
|
|
|
//{
|
|
|
|
|
|
// var ary = make([]byte,12) ;
|
|
|
|
|
|
//
|
|
|
|
|
|
// ary[index++] = FLXNetCCUCompara_CMD_HEAD;
|
|
|
|
|
|
// ary[index++] = FLXNetCCUCompara_CMD_TYPE01;
|
|
|
|
|
|
// ary[index++] = CMD_CHANEL;
|
|
|
|
|
|
// ary[index++] = FLXNetCCUCompara_CMD_BROAD;
|
|
|
|
|
|
// ary[index++] = Data_Device_Query; //cmd
|
|
|
|
|
|
|
|
|
|
|
|
// gb2312 能识别更多汉字， 担心utf8不能转换签到门硬件里面出来的汉字，因此转gb2312
|
|
|
|
|
|
func UTF8GBK(s []byte) ([]byte, error) {
|
|
|
|
|
|
|
|
|
|
|
|
defer func() {
|
|
|
|
|
|
if r := recover(); r != nil {
|
|
|
|
|
|
log.Error("UTF8GBK:", r)
|
|
|
|
|
|
}
|
|
|
|
|
|
}()
|
|
|
|
|
|
|
|
|
|
|
|
reader := transform.NewReader(bytes.NewReader(s), simplifiedchinese.GBK.NewEncoder())
|
|
|
|
|
|
d, e := ioutil.ReadAll(reader)
|
|
|
|
|
|
if e != nil {
|
|
|
|
|
|
return nil, e
|
|
|
|
|
|
}
|
|
|
|
|
|
return d, nil
|
|
|
|
|
|
|
|
|
|
|
|
}
|
