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Commit UdpServer class
This commit is contained in:
Travis Nickles
parent
d925452ed8
commit
be6548a000
631
DS4Windows/DS4Control/UdpServer.cs
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631
DS4Windows/DS4Control/UdpServer.cs
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@ -0,0 +1,631 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Net.Sockets;
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using System.ComponentModel;
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namespace DS4Windows
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{
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public enum DsState : byte
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{
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[Description("Disconnected")]
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Disconnected = 0x00,
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[Description("Reserved")]
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Reserved = 0x01,
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[Description("Connected")]
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Connected = 0x02
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};
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public enum DsConnection : byte
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{
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[Description("None")]
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None = 0x00,
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[Description("Usb")]
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Usb = 0x01,
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[Description("Bluetooth")]
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Bluetooth = 0x02
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};
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public enum DsModel : byte
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{
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[Description("None")]
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None = 0,
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[Description("DualShock 3")]
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DS3 = 1,
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[Description("DualShock 4")]
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DS4 = 2,
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[Description("Generic Gamepad")]
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Generic = 3
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}
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public enum DsBattery : byte
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{
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None = 0x00,
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Dying = 0x01,
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Low = 0x02,
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Medium = 0x03,
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High = 0x04,
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Full = 0x05,
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Charging = 0xEE,
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Charged = 0xEF
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};
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public struct DualShockPadMeta
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{
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public byte PadId;
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public DsState PadState;
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public DsConnection ConnectionType;
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public DsModel Model;
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public PhysicalAddress PadMacAddress;
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public DsBattery BatteryStatus;
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public bool IsActive;
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}
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class UdpServer
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{
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private Socket udpSock;
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private uint serverId;
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private bool running;
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private byte[] recvBuffer = new byte[1024];
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public delegate void GetPadDetail(int padIdx, ref DualShockPadMeta meta);
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private GetPadDetail portInfoGet;
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public UdpServer(GetPadDetail getPadDetailDel)
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{
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portInfoGet = getPadDetailDel;
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}
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enum MessageType
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{
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DSUC_VersionReq = 0x100000,
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DSUS_VersionRsp = 0x100000,
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DSUC_ListPorts = 0x100001,
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DSUS_PortInfo = 0x100001,
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DSUC_PadDataReq = 0x100002,
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DSUS_PadDataRsp = 0x100002,
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};
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private const ushort MaxProtocolVersion = 1001;
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class ClientRequestTimes
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{
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DateTime allPads;
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DateTime[] padIds;
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Dictionary<PhysicalAddress, DateTime> padMacs;
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public DateTime AllPadsTime { get { return allPads; } }
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public DateTime[] PadIdsTime { get { return padIds; } }
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public Dictionary<PhysicalAddress, DateTime> PadMacsTime { get { return padMacs; } }
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public ClientRequestTimes()
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{
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allPads = DateTime.MinValue;
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padIds = new DateTime[4];
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for (int i = 0; i < padIds.Length; i++)
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padIds[i] = DateTime.MinValue;
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padMacs = new Dictionary<PhysicalAddress, DateTime>();
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}
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public void RequestPadInfo(byte regFlags, byte idToReg, PhysicalAddress macToReg)
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{
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if (regFlags == 0)
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allPads = DateTime.UtcNow;
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else
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{
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if ((regFlags & 0x01) != 0) //id valid
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{
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if (idToReg < padIds.Length)
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padIds[idToReg] = DateTime.UtcNow;
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}
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if ((regFlags & 0x02) != 0) //mac valid
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{
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padMacs[macToReg] = DateTime.UtcNow;
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}
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}
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}
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}
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private Dictionary<IPEndPoint, ClientRequestTimes> clients = new Dictionary<IPEndPoint, ClientRequestTimes>();
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private int BeginPacket(byte[] packetBuf, ushort reqProtocolVersion = MaxProtocolVersion)
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{
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int currIdx = 0;
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packetBuf[currIdx++] = (byte)'D';
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packetBuf[currIdx++] = (byte)'S';
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packetBuf[currIdx++] = (byte)'U';
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packetBuf[currIdx++] = (byte)'S';
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Array.Copy(BitConverter.GetBytes((ushort)reqProtocolVersion), 0, packetBuf, currIdx, 2);
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currIdx += 2;
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Array.Copy(BitConverter.GetBytes((ushort)packetBuf.Length - 16), 0, packetBuf, currIdx, 2);
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currIdx += 2;
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Array.Clear(packetBuf, currIdx, 4); //place for crc
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currIdx += 4;
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Array.Copy(BitConverter.GetBytes((uint)serverId), 0, packetBuf, currIdx, 4);
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currIdx += 4;
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return currIdx;
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}
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private void FinishPacket(byte[] packetBuf)
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{
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Array.Clear(packetBuf, 8, 4);
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//uint crcCalc = Crc32Algorithm.Compute(packetBuf);
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uint seed = Crc32Algorithm.DefaultSeed;
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uint crcCalc = ~Crc32Algorithm.CalculateBasicHash(ref seed, ref packetBuf, 0, packetBuf.Length);
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Array.Copy(BitConverter.GetBytes((uint)crcCalc), 0, packetBuf, 8, 4);
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}
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private void SendPacket(IPEndPoint clientEP, byte[] usefulData, ushort reqProtocolVersion = MaxProtocolVersion)
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{
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byte[] packetData = new byte[usefulData.Length + 16];
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int currIdx = BeginPacket(packetData, reqProtocolVersion);
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Array.Copy(usefulData, 0, packetData, currIdx, usefulData.Length);
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FinishPacket(packetData);
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try { udpSock.SendTo(packetData, clientEP); }
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catch (Exception e) { }
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}
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private void ProcessIncoming(byte[] localMsg, IPEndPoint clientEP)
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{
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try
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{
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int currIdx = 0;
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if (localMsg[0] != 'D' || localMsg[1] != 'S' || localMsg[2] != 'U' || localMsg[3] != 'C')
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return;
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else
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currIdx += 4;
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uint protocolVer = BitConverter.ToUInt16(localMsg, currIdx);
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currIdx += 2;
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if (protocolVer > MaxProtocolVersion)
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return;
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uint packetSize = BitConverter.ToUInt16(localMsg, currIdx);
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currIdx += 2;
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if (packetSize < 0)
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return;
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packetSize += 16; //size of header
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if (packetSize > localMsg.Length)
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return;
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else if (packetSize < localMsg.Length)
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{
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byte[] newMsg = new byte[packetSize];
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Array.Copy(localMsg, newMsg, packetSize);
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localMsg = newMsg;
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}
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uint crcValue = BitConverter.ToUInt32(localMsg, currIdx);
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//zero out the crc32 in the packet once we got it since that's whats needed for calculation
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localMsg[currIdx++] = 0;
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localMsg[currIdx++] = 0;
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localMsg[currIdx++] = 0;
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localMsg[currIdx++] = 0;
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uint crcCalc = Crc32Algorithm.Compute(localMsg);
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if (crcValue != crcCalc)
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return;
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uint clientId = BitConverter.ToUInt32(localMsg, currIdx);
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currIdx += 4;
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uint messageType = BitConverter.ToUInt32(localMsg, currIdx);
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currIdx += 4;
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if (messageType == (uint)MessageType.DSUC_VersionReq)
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{
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byte[] outputData = new byte[8];
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int outIdx = 0;
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Array.Copy(BitConverter.GetBytes((uint)MessageType.DSUS_VersionRsp), 0, outputData, outIdx, 4);
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outIdx += 4;
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Array.Copy(BitConverter.GetBytes((ushort)MaxProtocolVersion), 0, outputData, outIdx, 2);
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outIdx += 2;
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outputData[outIdx++] = 0;
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outputData[outIdx++] = 0;
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SendPacket(clientEP, outputData, 1001);
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}
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else if (messageType == (uint)MessageType.DSUC_ListPorts)
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{
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int numPadRequests = BitConverter.ToInt32(localMsg, currIdx);
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currIdx += 4;
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if (numPadRequests < 0 || numPadRequests > 4)
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return;
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int requestsIdx = currIdx;
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for (int i = 0; i < numPadRequests; i++)
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{
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byte currRequest = localMsg[requestsIdx + i];
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if (currRequest >= 4)
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return;
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}
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byte[] outputData = new byte[16];
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for (byte i = 0; i < numPadRequests; i++)
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{
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byte currRequest = localMsg[requestsIdx + i];
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DualShockPadMeta padData = new DualShockPadMeta();
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portInfoGet(currRequest, ref padData);
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int outIdx = 0;
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Array.Copy(BitConverter.GetBytes((uint)MessageType.DSUS_PortInfo), 0, outputData, outIdx, 4);
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outIdx += 4;
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outputData[outIdx++] = (byte)padData.PadId;
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outputData[outIdx++] = (byte)padData.PadState;
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outputData[outIdx++] = (byte)padData.Model;
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outputData[outIdx++] = (byte)padData.ConnectionType;
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byte[] addressBytes = null;
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if (padData.PadMacAddress != null)
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addressBytes = padData.PadMacAddress.GetAddressBytes();
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if (addressBytes != null && addressBytes.Length == 6)
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{
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outputData[outIdx++] = addressBytes[0];
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outputData[outIdx++] = addressBytes[1];
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outputData[outIdx++] = addressBytes[2];
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outputData[outIdx++] = addressBytes[3];
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outputData[outIdx++] = addressBytes[4];
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outputData[outIdx++] = addressBytes[5];
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}
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else
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{
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outputData[outIdx++] = 0;
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outputData[outIdx++] = 0;
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outputData[outIdx++] = 0;
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outputData[outIdx++] = 0;
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outputData[outIdx++] = 0;
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outputData[outIdx++] = 0;
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}
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outputData[outIdx++] = (byte)padData.BatteryStatus;
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outputData[outIdx++] = 0;
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SendPacket(clientEP, outputData, 1001);
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}
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}
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else if (messageType == (uint)MessageType.DSUC_PadDataReq)
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{
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byte regFlags = localMsg[currIdx++];
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byte idToReg = localMsg[currIdx++];
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PhysicalAddress macToReg = null;
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{
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byte[] macBytes = new byte[6];
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Array.Copy(localMsg, currIdx, macBytes, 0, macBytes.Length);
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currIdx += macBytes.Length;
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macToReg = new PhysicalAddress(macBytes);
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}
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lock (clients)
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{
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if (clients.ContainsKey(clientEP))
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clients[clientEP].RequestPadInfo(regFlags, idToReg, macToReg);
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else
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{
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var clientTimes = new ClientRequestTimes();
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clientTimes.RequestPadInfo(regFlags, idToReg, macToReg);
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clients[clientEP] = clientTimes;
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}
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}
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}
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}
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catch (Exception e) { }
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}
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private void ReceiveCallback(IAsyncResult iar)
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{
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byte[] localMsg = null;
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EndPoint clientEP = new IPEndPoint(IPAddress.Any, 0);
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try
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{
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//Get the received message.
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Socket recvSock = (Socket)iar.AsyncState;
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int msgLen = recvSock.EndReceiveFrom(iar, ref clientEP);
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localMsg = new byte[msgLen];
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Array.Copy(recvBuffer, localMsg, msgLen);
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}
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catch (Exception e) { }
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//Start another receive as soon as we copied the data
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StartReceive();
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//Process the data if its valid
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if (localMsg != null)
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ProcessIncoming(localMsg, (IPEndPoint)clientEP);
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}
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private void StartReceive()
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{
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try
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{
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if (running)
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{
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//Start listening for a new message.
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EndPoint newClientEP = new IPEndPoint(IPAddress.Any, 0);
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udpSock.BeginReceiveFrom(recvBuffer, 0, recvBuffer.Length, SocketFlags.None, ref newClientEP, ReceiveCallback, udpSock);
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}
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}
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catch (SocketException ex)
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{
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uint IOC_IN = 0x80000000;
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uint IOC_VENDOR = 0x18000000;
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uint SIO_UDP_CONNRESET = IOC_IN | IOC_VENDOR | 12;
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udpSock.IOControl((int)SIO_UDP_CONNRESET, new byte[] { Convert.ToByte(false) }, null);
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StartReceive();
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}
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}
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public void Start(int port)
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{
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if (running)
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{
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if (udpSock != null)
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{
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udpSock.Close();
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udpSock = null;
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}
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running = false;
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}
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udpSock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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try { udpSock.Bind(new IPEndPoint(IPAddress.Loopback, port)); }
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catch (SocketException ex)
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{
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udpSock.Close();
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udpSock = null;
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throw ex;
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}
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byte[] randomBuf = new byte[4];
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new Random().NextBytes(randomBuf);
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serverId = BitConverter.ToUInt32(randomBuf, 0);
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running = true;
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StartReceive();
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}
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public void Stop()
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{
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running = false;
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if (udpSock != null)
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{
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udpSock.Close();
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udpSock = null;
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}
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}
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private bool ReportToBuffer(DS4State hidReport, byte[] outputData, ref int outIdx)
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{
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outputData[outIdx] = 0;
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if (hidReport.DpadLeft) outputData[outIdx] |= 0x80;
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if (hidReport.DpadDown) outputData[outIdx] |= 0x40;
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if (hidReport.DpadRight) outputData[outIdx] |= 0x20;
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if (hidReport.DpadUp) outputData[outIdx] |= 0x10;
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if (hidReport.Options) outputData[outIdx] |= 0x08;
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if (hidReport.R3) outputData[outIdx] |= 0x04;
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if (hidReport.L3) outputData[outIdx] |= 0x02;
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if (hidReport.Share) outputData[outIdx] |= 0x01;
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outputData[++outIdx] = 0;
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if (hidReport.Square) outputData[outIdx] |= 0x80;
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if (hidReport.Cross) outputData[outIdx] |= 0x40;
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if (hidReport.Circle) outputData[outIdx] |= 0x20;
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if (hidReport.Triangle) outputData[outIdx] |= 0x10;
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if (hidReport.R1) outputData[outIdx] |= 0x08;
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if (hidReport.L1) outputData[outIdx] |= 0x04;
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if (hidReport.R2Btn) outputData[outIdx] |= 0x02;
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if (hidReport.L2Btn) outputData[outIdx] |= 0x01;
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outputData[++outIdx] = (hidReport.PS) ? (byte)1 : (byte)0;
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outputData[++outIdx] = (hidReport.TouchButton) ? (byte)1 : (byte)0;
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//Left stick
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outputData[++outIdx] = hidReport.LX;
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outputData[++outIdx] = hidReport.LY;
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outputData[outIdx] = (byte)(255 - outputData[outIdx]); //invert Y by convention
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//Right stick
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outputData[++outIdx] = hidReport.RX;
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outputData[++outIdx] = hidReport.RY;
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outputData[outIdx] = (byte)(255 - outputData[outIdx]); //invert Y by convention
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//we don't have analog buttons on DS4 :(
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outputData[++outIdx] = hidReport.DpadLeft ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.DpadDown ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.DpadRight ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.DpadUp ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.Square ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.Cross ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.Circle ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.Triangle ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.R1 ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.L1 ? (byte)0xFF : (byte)0x00;
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outputData[++outIdx] = hidReport.R2;
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outputData[++outIdx] = hidReport.L2;
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outIdx++;
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//DS4 only: touchpad points
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for (int i = 0; i < 2; i++)
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{
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var tpad = (i == 0) ? hidReport.TrackPadTouch0 : hidReport.TrackPadTouch1;
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outputData[outIdx++] = tpad.IsActive ? (byte)1 : (byte)0;
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outputData[outIdx++] = (byte)tpad.Id;
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Array.Copy(BitConverter.GetBytes((ushort)tpad.X), 0, outputData, outIdx, 2);
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outIdx += 2;
|
||||
Array.Copy(BitConverter.GetBytes((ushort)tpad.Y), 0, outputData, outIdx, 2);
|
||||
outIdx += 2;
|
||||
}
|
||||
|
||||
//motion timestamp
|
||||
if (hidReport.Motion != null)
|
||||
Array.Copy(BitConverter.GetBytes((ulong)hidReport.totalMicroSec), 0, outputData, outIdx, 8);
|
||||
else
|
||||
Array.Clear(outputData, outIdx, 8);
|
||||
|
||||
outIdx += 8;
|
||||
|
||||
//accelerometer
|
||||
if (hidReport.Motion != null)
|
||||
{
|
||||
Array.Copy(BitConverter.GetBytes((float)hidReport.Motion.accelXG), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
Array.Copy(BitConverter.GetBytes((float)hidReport.Motion.accelYG), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
Array.Copy(BitConverter.GetBytes((float)-hidReport.Motion.accelZG), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
}
|
||||
else
|
||||
{
|
||||
Array.Clear(outputData, outIdx, 12);
|
||||
outIdx += 12;
|
||||
}
|
||||
|
||||
//gyroscope
|
||||
if (hidReport.Motion != null)
|
||||
{
|
||||
Array.Copy(BitConverter.GetBytes((float)hidReport.Motion.angVelPitch), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
Array.Copy(BitConverter.GetBytes((float)hidReport.Motion.angVelYaw), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
Array.Copy(BitConverter.GetBytes((float)hidReport.Motion.angVelRoll), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
}
|
||||
else
|
||||
{
|
||||
Array.Clear(outputData, outIdx, 12);
|
||||
outIdx += 12;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
public void NewReportIncoming(ref DualShockPadMeta padMeta, DS4State hidReport)
|
||||
{
|
||||
if (!running)
|
||||
return;
|
||||
|
||||
var clientsList = new List<IPEndPoint>();
|
||||
var now = DateTime.UtcNow;
|
||||
lock (clients)
|
||||
{
|
||||
var clientsToDelete = new List<IPEndPoint>();
|
||||
|
||||
foreach (var cl in clients)
|
||||
{
|
||||
const double TimeoutLimit = 5;
|
||||
|
||||
if ((now - cl.Value.AllPadsTime).TotalSeconds < TimeoutLimit)
|
||||
clientsList.Add(cl.Key);
|
||||
else if ((padMeta.PadId < cl.Value.PadIdsTime.Length) &&
|
||||
(now - cl.Value.PadIdsTime[(byte)padMeta.PadId]).TotalSeconds < TimeoutLimit)
|
||||
clientsList.Add(cl.Key);
|
||||
else if (cl.Value.PadMacsTime.ContainsKey(padMeta.PadMacAddress) &&
|
||||
(now - cl.Value.PadMacsTime[padMeta.PadMacAddress]).TotalSeconds < TimeoutLimit)
|
||||
clientsList.Add(cl.Key);
|
||||
else //check if this client is totally dead, and remove it if so
|
||||
{
|
||||
bool clientOk = false;
|
||||
for (int i = 0; i < cl.Value.PadIdsTime.Length; i++)
|
||||
{
|
||||
var dur = (now - cl.Value.PadIdsTime[i]).TotalSeconds;
|
||||
if (dur < TimeoutLimit)
|
||||
{
|
||||
clientOk = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!clientOk)
|
||||
{
|
||||
foreach (var dict in cl.Value.PadMacsTime)
|
||||
{
|
||||
var dur = (now - dict.Value).TotalSeconds;
|
||||
if (dur < TimeoutLimit)
|
||||
{
|
||||
clientOk = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!clientOk)
|
||||
clientsToDelete.Add(cl.Key);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
foreach (var delCl in clientsToDelete)
|
||||
{
|
||||
clients.Remove(delCl);
|
||||
}
|
||||
clientsToDelete.Clear();
|
||||
clientsToDelete = null;
|
||||
}
|
||||
|
||||
if (clientsList.Count <= 0)
|
||||
return;
|
||||
|
||||
byte[] outputData = new byte[100];
|
||||
int outIdx = BeginPacket(outputData, 1001);
|
||||
Array.Copy(BitConverter.GetBytes((uint)MessageType.DSUS_PadDataRsp), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
|
||||
outputData[outIdx++] = (byte)padMeta.PadId;
|
||||
outputData[outIdx++] = (byte)padMeta.PadState;
|
||||
outputData[outIdx++] = (byte)padMeta.Model;
|
||||
outputData[outIdx++] = (byte)padMeta.ConnectionType;
|
||||
{
|
||||
byte[] padMac = padMeta.PadMacAddress.GetAddressBytes();
|
||||
outputData[outIdx++] = padMac[0];
|
||||
outputData[outIdx++] = padMac[1];
|
||||
outputData[outIdx++] = padMac[2];
|
||||
outputData[outIdx++] = padMac[3];
|
||||
outputData[outIdx++] = padMac[4];
|
||||
outputData[outIdx++] = padMac[5];
|
||||
}
|
||||
outputData[outIdx++] = (byte)padMeta.BatteryStatus;
|
||||
outputData[outIdx++] = padMeta.IsActive ? (byte)1 : (byte)0;
|
||||
|
||||
Array.Copy(BitConverter.GetBytes((uint)hidReport.PacketCounter), 0, outputData, outIdx, 4);
|
||||
outIdx += 4;
|
||||
|
||||
if (!ReportToBuffer(hidReport, outputData, ref outIdx))
|
||||
return;
|
||||
else
|
||||
FinishPacket(outputData);
|
||||
|
||||
foreach (var cl in clientsList)
|
||||
{
|
||||
try { udpSock.SendTo(outputData, cl); }
|
||||
catch (SocketException ex) { }
|
||||
}
|
||||
clientsList.Clear();
|
||||
clientsList = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user