Add LiteNetLibTransport

Packages/packages-lock.json

       "dependencies": {},
       "hash": "c4a9ab0da78e366f6f7fdf2d337455cc1d94dbb0"
     },
+    "com.unity.multiplayer.transport.litenet": {
+      "version": "file:com.unity.multiplayer.transport.litenet",
+      "depth": 0,
+      "source": "embedded",
+      "dependencies": {
+        "com.unity.multiplayer.mlapi": "0.0.1-preview.1"
+      }
+    },
     "com.unity.test-framework": {
       "version": "1.1.16",
       "depth": 0,

Packages/com.unity.multiplayer.transport.litenet/CHANGELOG.md

+Changelog
+All notable changes to this package will be documented in this file. The format is based on Keep a Changelog
+
+[0.0.1-preview.1] - 2020-10-05
+This is the first release of Enet MLAPI Package

Packages/com.unity.multiplayer.transport.litenet/CHANGELOG.md.meta

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Packages/com.unity.multiplayer.transport.litenet/LICENSE.md

+MIT License
+
+Copyright (c) 2018, 2019 Albin Corén
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Packages/com.unity.multiplayer.transport.litenet/LICENSE.md.meta

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Packages/com.unity.multiplayer.transport.litenet/README.md

+Enet transport for MLAPI

Packages/com.unity.multiplayer.transport.litenet/README.md.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/BaseChannel.cs

+using System.Collections.Generic;
+
+namespace LiteNetLib
+{
+    internal abstract class BaseChannel
+    {
+        public BaseChannel Next;
+        protected readonly NetPeer Peer;
+        protected readonly Queue<NetPacket> OutgoingQueue;
+
+        protected BaseChannel(NetPeer peer)
+        {
+            Peer = peer;
+            OutgoingQueue = new Queue<NetPacket>(64);
+        }
+
+        public int PacketsInQueue
+        {
+            get { return OutgoingQueue.Count; }
+        }
+
+        public void AddToQueue(NetPacket packet)
+        {
+            lock (OutgoingQueue)
+                OutgoingQueue.Enqueue(packet);
+        }
+
+        public abstract void SendNextPackets();
+        public abstract bool ProcessPacket(NetPacket packet);
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/BaseChannel.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/ConnectionRequest.cs

+using System.Net;
+using System.Threading;
+using LiteNetLib.Utils;
+
+namespace LiteNetLib
+{
+    internal enum ConnectionRequestResult
+    {
+        None,
+        Accept,
+        Reject,
+        RejectForce
+    }
+
+    public class ConnectionRequest
+    {
+        private readonly NetManager _listener;
+        private int _used;
+
+        public readonly NetDataReader Data;
+
+        internal ConnectionRequestResult Result { get; private set; }
+        internal long ConnectionTime;
+        internal byte ConnectionNumber;
+        public readonly IPEndPoint RemoteEndPoint;
+
+        private bool TryActivate()
+        {
+            return Interlocked.CompareExchange(ref _used, 1, 0) == 0;
+        }
+
+        internal void UpdateRequest(NetConnectRequestPacket connRequest)
+        {
+            if (connRequest.ConnectionTime >= ConnectionTime)
+            {
+                ConnectionTime = connRequest.ConnectionTime;
+                ConnectionNumber = connRequest.ConnectionNumber;
+            }
+        }
+
+        internal ConnectionRequest(
+            long connectionId,
+            byte connectionNumber,
+            NetDataReader netDataReader,
+            IPEndPoint endPoint,
+            NetManager listener)
+        {
+            ConnectionTime = connectionId;
+            ConnectionNumber = connectionNumber;
+            RemoteEndPoint = endPoint;
+            Data = netDataReader;
+            _listener = listener;
+        }
+
+        public NetPeer AcceptIfKey(string key)
+        {
+            if (!TryActivate())
+                return null;
+            try
+            {
+                if (Data.GetString() == key)
+                    Result = ConnectionRequestResult.Accept;
+            }
+            catch
+            {
+                NetDebug.WriteError("[AC] Invalid incoming data");
+            }
+            if (Result == ConnectionRequestResult.Accept)
+                return _listener.OnConnectionSolved(this, null, 0, 0);
+
+            Result = ConnectionRequestResult.Reject;
+            _listener.OnConnectionSolved(this, null, 0, 0);
+            return null;
+        }
+
+        /// <summary>
+        /// Accept connection and get new NetPeer as result
+        /// </summary>
+        /// <returns>Connected NetPeer</returns>
+        public NetPeer Accept()
+        {
+            if (!TryActivate())
+                return null;
+            Result = ConnectionRequestResult.Accept;
+            return _listener.OnConnectionSolved(this, null, 0, 0);
+        }
+        
+        public void Reject(byte[] rejectData, int start, int length, bool force)
+        {
+            if (!TryActivate())
+                return;
+            Result = force ? ConnectionRequestResult.RejectForce : ConnectionRequestResult.Reject;
+            _listener.OnConnectionSolved(this, rejectData, start, length);
+        }
+
+        public void Reject(byte[] rejectData, int start, int length)
+        {
+            Reject(rejectData, start, length, false);
+        }
+
+
+        public void RejectForce(byte[] rejectData, int start, int length)
+        {
+            Reject(rejectData, start, length, true);
+        }
+
+        public void RejectForce()
+        {
+            Reject(null, 0, 0, true);
+        }
+
+        public void RejectForce(byte[] rejectData)
+        {
+            Reject(rejectData, 0, rejectData.Length, true);
+        }
+
+        public void RejectForce(NetDataWriter rejectData)
+        {
+            Reject(rejectData.Data, 0, rejectData.Length, true);
+        }
+
+        public void Reject()
+        {
+            Reject(null, 0, 0, false);
+        }
+
+        public void Reject(byte[] rejectData)
+        {
+            Reject(rejectData, 0, rejectData.Length, false);
+        }
+
+        public void Reject(NetDataWriter rejectData)
+        {
+            Reject(rejectData.Data, 0, rejectData.Length, false);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/ConnectionRequest.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/INetEventListener.cs

+using System.Net;
+using System.Net.Sockets;
+
+namespace LiteNetLib
+{
+    /// <summary>
+    /// Type of message that you receive in OnNetworkReceiveUnconnected event
+    /// </summary>
+    public enum UnconnectedMessageType
+    {
+        BasicMessage,
+        Broadcast
+    }
+
+    /// <summary>
+    /// Disconnect reason that you receive in OnPeerDisconnected event
+    /// </summary>
+    public enum DisconnectReason
+    {
+        ConnectionFailed,
+        Timeout,
+        HostUnreachable,
+        NetworkUnreachable,
+        RemoteConnectionClose,
+        DisconnectPeerCalled,
+        ConnectionRejected,
+        InvalidProtocol,
+        UnknownHost,
+        Reconnect,
+        PeerToPeerConnection
+    }
+
+    /// <summary>
+    /// Additional information about disconnection
+    /// </summary>
+    public struct DisconnectInfo
+    {
+        /// <summary>
+        /// Additional info why peer disconnected
+        /// </summary>
+        public DisconnectReason Reason;
+
+        /// <summary>
+        /// Error code (if reason is SocketSendError or SocketReceiveError)
+        /// </summary>
+        public SocketError SocketErrorCode;
+
+        /// <summary>
+        /// Additional data that can be accessed (only if reason is RemoteConnectionClose)
+        /// </summary>
+        public NetPacketReader AdditionalData;
+    }
+
+    public interface INetEventListener
+    {
+        /// <summary>
+        /// New remote peer connected to host, or client connected to remote host
+        /// </summary>
+        /// <param name="peer">Connected peer object</param>
+        void OnPeerConnected(NetPeer peer);
+
+        /// <summary>
+        /// Peer disconnected
+        /// </summary>
+        /// <param name="peer">disconnected peer</param>
+        /// <param name="disconnectInfo">additional info about reason, errorCode or data received with disconnect message</param>
+        void OnPeerDisconnected(NetPeer peer, DisconnectInfo disconnectInfo);
+
+        /// <summary>
+        /// Network error (on send or receive)
+        /// </summary>
+        /// <param name="endPoint">From endPoint (can be null)</param>
+        /// <param name="socketError">Socket error</param>
+        void OnNetworkError(IPEndPoint endPoint, SocketError socketError);
+
+        /// <summary>
+        /// Received some data
+        /// </summary>
+        /// <param name="peer">From peer</param>
+        /// <param name="reader">DataReader containing all received data</param>
+        /// <param name="deliveryMethod">Type of received packet</param>
+        void OnNetworkReceive(NetPeer peer, NetPacketReader reader, DeliveryMethod deliveryMethod);
+
+        /// <summary>
+        /// Received unconnected message
+        /// </summary>
+        /// <param name="remoteEndPoint">From address (IP and Port)</param>
+        /// <param name="reader">Message data</param>
+        /// <param name="messageType">Message type (simple, discovery request or response)</param>
+        void OnNetworkReceiveUnconnected(IPEndPoint remoteEndPoint, NetPacketReader reader, UnconnectedMessageType messageType);
+
+        /// <summary>
+        /// Latency information updated
+        /// </summary>
+        /// <param name="peer">Peer with updated latency</param>
+        /// <param name="latency">latency value in milliseconds</param>
+        void OnNetworkLatencyUpdate(NetPeer peer, int latency);
+
+        /// <summary>
+        /// On peer connection requested
+        /// </summary>
+        /// <param name="request">Request information (EndPoint, internal id, additional data)</param>
+        void OnConnectionRequest(ConnectionRequest request);
+    }
+
+    public interface IDeliveryEventListener
+    {
+        /// <summary>
+        /// On reliable message delivered
+        /// </summary>
+        /// <param name="peer"></param>
+        /// <param name="userData"></param>
+        void OnMessageDelivered(NetPeer peer, object userData);
+    }
+
+    public class EventBasedNetListener : INetEventListener, IDeliveryEventListener
+    {
+        public delegate void OnPeerConnected(NetPeer peer);
+        public delegate void OnPeerDisconnected(NetPeer peer, DisconnectInfo disconnectInfo);
+        public delegate void OnNetworkError(IPEndPoint endPoint, SocketError socketError);
+        public delegate void OnNetworkReceive(NetPeer peer, NetPacketReader reader, DeliveryMethod deliveryMethod);
+        public delegate void OnNetworkReceiveUnconnected(IPEndPoint remoteEndPoint, NetPacketReader reader, UnconnectedMessageType messageType);
+        public delegate void OnNetworkLatencyUpdate(NetPeer peer, int latency);
+        public delegate void OnConnectionRequest(ConnectionRequest request);
+        public delegate void OnDeliveryEvent(NetPeer peer, object userData);
+
+        public event OnPeerConnected PeerConnectedEvent;
+        public event OnPeerDisconnected PeerDisconnectedEvent;
+        public event OnNetworkError NetworkErrorEvent;
+        public event OnNetworkReceive NetworkReceiveEvent;
+        public event OnNetworkReceiveUnconnected NetworkReceiveUnconnectedEvent;
+        public event OnNetworkLatencyUpdate NetworkLatencyUpdateEvent;
+        public event OnConnectionRequest ConnectionRequestEvent;
+        public event OnDeliveryEvent DeliveryEvent;
+
+        public void ClearPeerConnectedEvent()
+        {
+            PeerConnectedEvent = null;
+        }
+
+        public void ClearPeerDisconnectedEvent()
+        {
+            PeerDisconnectedEvent = null;
+        }
+
+        public void ClearNetworkErrorEvent()
+        {
+            NetworkErrorEvent = null;
+        }
+
+        public void ClearNetworkReceiveEvent()
+        {
+            NetworkReceiveEvent = null;
+        }
+
+        public void ClearNetworkReceiveUnconnectedEvent()
+        {
+            NetworkReceiveUnconnectedEvent = null;
+        }
+
+        public void ClearNetworkLatencyUpdateEvent()
+        {
+            NetworkLatencyUpdateEvent = null;
+        }
+
+        public void ClearConnectionRequestEvent()
+        {
+            ConnectionRequestEvent = null;
+        }
+
+        public void ClearDeliveryEvent()
+        {
+            DeliveryEvent = null;
+        }
+
+        void INetEventListener.OnPeerConnected(NetPeer peer)
+        {
+            if (PeerConnectedEvent != null)
+                PeerConnectedEvent(peer);
+        }
+
+        void INetEventListener.OnPeerDisconnected(NetPeer peer, DisconnectInfo disconnectInfo)
+        {
+            if (PeerDisconnectedEvent != null)
+                PeerDisconnectedEvent(peer, disconnectInfo);
+        }
+
+        void INetEventListener.OnNetworkError(IPEndPoint endPoint, SocketError socketErrorCode)
+        {
+            if (NetworkErrorEvent != null)
+                NetworkErrorEvent(endPoint, socketErrorCode);
+        }
+
+        void INetEventListener.OnNetworkReceive(NetPeer peer, NetPacketReader reader, DeliveryMethod deliveryMethod)
+        {
+            if (NetworkReceiveEvent != null)
+                NetworkReceiveEvent(peer, reader, deliveryMethod);
+        }
+
+        void INetEventListener.OnNetworkReceiveUnconnected(IPEndPoint remoteEndPoint, NetPacketReader reader, UnconnectedMessageType messageType)
+        {
+            if (NetworkReceiveUnconnectedEvent != null)
+                NetworkReceiveUnconnectedEvent(remoteEndPoint, reader, messageType);
+        }
+
+        void INetEventListener.OnNetworkLatencyUpdate(NetPeer peer, int latency)
+        {
+            if (NetworkLatencyUpdateEvent != null)
+                NetworkLatencyUpdateEvent(peer, latency);
+        }
+
+        void INetEventListener.OnConnectionRequest(ConnectionRequest request)
+        {
+            if (ConnectionRequestEvent != null)
+                ConnectionRequestEvent(request);
+        }
+
+        void IDeliveryEventListener.OnMessageDelivered(NetPeer peer, object userData)
+        {
+            if (DeliveryEvent != null)
+                DeliveryEvent(peer, userData);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/INetEventListener.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers/Crc32cLayer.cs

+using LiteNetLib.Utils;
+using System;
+
+namespace LiteNetLib.Layers
+{
+    public sealed class Crc32cLayer : PacketLayerBase
+    {
+        public Crc32cLayer() : base(CRC32C.ChecksumSize)
+        {
+
+        }
+
+        public override void ProcessInboundPacket(ref byte[] data, ref int length)
+        {
+            if (length < NetConstants.HeaderSize + CRC32C.ChecksumSize)
+            {
+                NetDebug.WriteError("[NM] DataReceived size: bad!");
+                return;
+            }
+
+            int checksumPoint = length - CRC32C.ChecksumSize;
+            if (CRC32C.Compute(data, 0, checksumPoint) != BitConverter.ToUInt32(data, checksumPoint))
+            {
+                NetDebug.Write("[NM] DataReceived checksum: bad!");
+                return;
+            }
+            length -= CRC32C.ChecksumSize;
+        }
+
+        public override void ProcessOutBoundPacket(ref byte[] data, ref int offset, ref int length)
+        {
+            FastBitConverter.GetBytes(data, length, CRC32C.Compute(data, offset, length));
+            length += CRC32C.ChecksumSize;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers/Crc32cLayer.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers/PacketLayerBase.cs

+namespace LiteNetLib.Layers
+{
+    public abstract class PacketLayerBase
+    {
+        public readonly int ExtraPacketSizeForLayer;
+
+        protected PacketLayerBase(int extraPacketSizeForLayer)
+        {
+            ExtraPacketSizeForLayer = extraPacketSizeForLayer;
+        }
+
+        public abstract void ProcessInboundPacket(ref byte[] data, ref int length);
+        public abstract void ProcessOutBoundPacket(ref byte[] data, ref int offset, ref int length);
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers/PacketLayerBase.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers/XorEncryptLayer.cs

+using System;
+using System.Text;
+
+namespace LiteNetLib.Layers
+{
+    public class XorEncryptLayer : PacketLayerBase
+    {
+        private byte[] _byteKey;
+
+        public XorEncryptLayer() : base(0)
+        {
+
+        }
+
+        public XorEncryptLayer(byte[] key) : this()
+        {
+            SetKey(key);
+        }
+
+        public XorEncryptLayer(string key) : this()
+        {
+            SetKey(key);
+        }
+
+        public void SetKey(string key)
+        {
+            _byteKey = Encoding.UTF8.GetBytes(key);
+        }
+
+        public void SetKey(byte[] key)
+        {
+            if (_byteKey == null || _byteKey.Length != key.Length)
+                _byteKey = new byte[key.Length];
+            Buffer.BlockCopy(key, 0, _byteKey, 0, key.Length);
+        }
+
+        public override void ProcessInboundPacket(ref byte[] data, ref int length)
+        {
+            if (_byteKey == null)
+                return;
+            for (var i = 0; i < length; i++)
+            {
+                var offset = i % _byteKey.Length;
+                data[i] = (byte)(data[i] ^ _byteKey[offset]);
+            }
+        }
+
+        public override void ProcessOutBoundPacket(ref byte[] data, ref int offset, ref int length)
+        {
+            if (_byteKey == null)
+                return;
+            var cur = offset;
+            for (var i = 0; i < length; i++, cur++)
+            {
+                data[cur] = (byte)(data[cur] ^ _byteKey[i % _byteKey.Length]);
+            }
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Layers/XorEncryptLayer.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/LiteNetLib.csproj.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NatPunchModule.cs

+using System.Collections.Generic;
+using System.Net;
+using System.Net.Sockets;
+using LiteNetLib.Utils;
+
+namespace LiteNetLib
+{
+    public enum NatAddressType
+    {
+        Internal,
+        External
+    }
+
+    public interface INatPunchListener
+    {
+        void OnNatIntroductionRequest(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, string token);
+        void OnNatIntroductionSuccess(IPEndPoint targetEndPoint, NatAddressType type, string token);
+    }
+
+    public class EventBasedNatPunchListener : INatPunchListener
+    {
+        public delegate void OnNatIntroductionRequest(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, string token);
+        public delegate void OnNatIntroductionSuccess(IPEndPoint targetEndPoint, NatAddressType type, string token);
+
+        public event OnNatIntroductionRequest NatIntroductionRequest;
+        public event OnNatIntroductionSuccess NatIntroductionSuccess;
+
+        void INatPunchListener.OnNatIntroductionRequest(IPEndPoint localEndPoint, IPEndPoint remoteEndPoint, string token)
+        {
+            if(NatIntroductionRequest != null)
+                NatIntroductionRequest(localEndPoint, remoteEndPoint, token);
+        }
+
+        void INatPunchListener.OnNatIntroductionSuccess(IPEndPoint targetEndPoint, NatAddressType type, string token)
+        {
+            if (NatIntroductionSuccess != null)
+                NatIntroductionSuccess(targetEndPoint, type, token);
+        }
+    }
+
+    /// <summary>
+    /// Module for UDP NAT Hole punching operations. Can be accessed from NetManager
+    /// </summary>
+    public sealed class NatPunchModule
+    {
+        struct RequestEventData
+        {
+            public IPEndPoint LocalEndPoint;
+            public IPEndPoint RemoteEndPoint;
+            public string Token;
+        }
+
+        struct SuccessEventData
+        {
+            public IPEndPoint TargetEndPoint;
+            public NatAddressType Type;
+            public string Token;
+        }
+
+        class NatIntroduceRequestPacket
+        {
+            public IPEndPoint Internal { get; set; }
+            public string Token { get; set; }
+        }
+
+        class NatIntroduceResponsePacket
+        {
+            public IPEndPoint Internal { get; set; }
+            public IPEndPoint External { get; set; }
+            public string Token { get; set; }
+        }
+
+        class NatPunchPacket
+        {
+            public string Token { get; set; }
+            public bool IsExternal { get; set; }
+        }
+
+        private readonly NetSocket _socket;
+        private readonly Queue<RequestEventData> _requestEvents = new Queue<RequestEventData>();
+        private readonly Queue<SuccessEventData> _successEvents = new Queue<SuccessEventData>();
+        private readonly NetDataReader _cacheReader = new NetDataReader();
+        private readonly NetDataWriter _cacheWriter = new NetDataWriter();
+        private readonly NetPacketProcessor _netPacketProcessor = new NetPacketProcessor(MaxTokenLength);
+        private INatPunchListener _natPunchListener;
+        public const int MaxTokenLength = 256;
+
+        internal NatPunchModule(NetSocket socket)
+        {
+            _socket = socket;
+            _netPacketProcessor.SubscribeReusable<NatIntroduceResponsePacket>(OnNatIntroductionResponse);
+            _netPacketProcessor.SubscribeReusable<NatIntroduceRequestPacket, IPEndPoint>(OnNatIntroductionRequest);
+            _netPacketProcessor.SubscribeReusable<NatPunchPacket, IPEndPoint>(OnNatPunch);
+        }
+
+        internal void ProcessMessage(IPEndPoint senderEndPoint, NetPacket packet)
+        {
+            lock (_cacheReader)
+            {
+                _cacheReader.SetSource(packet.RawData, NetConstants.HeaderSize, packet.Size);
+                _netPacketProcessor.ReadAllPackets(_cacheReader, senderEndPoint);
+            }
+        }
+
+        public void Init(INatPunchListener listener)
+        {
+            _natPunchListener = listener;
+        }
+
+        private void Send<T>(T packet, IPEndPoint target) where T : class, new()
+        {
+            SocketError errorCode = 0;
+            _cacheWriter.Reset();
+            _cacheWriter.Put((byte)PacketProperty.NatMessage);
+            _netPacketProcessor.Write(_cacheWriter, packet);
+            _socket.SendTo(_cacheWriter.Data, 0, _cacheWriter.Length, target, ref errorCode);
+        }
+
+        public void NatIntroduce(
+            IPEndPoint hostInternal,
+            IPEndPoint hostExternal,
+            IPEndPoint clientInternal,
+            IPEndPoint clientExternal,
+            string additionalInfo)
+        {
+            var req = new NatIntroduceResponsePacket
+            {
+                Token = additionalInfo
+            };
+
+            //First packet (server) send to client
+            req.Internal = hostInternal;
+            req.External = hostExternal;
+            Send(req, clientExternal);
+
+            //Second packet (client) send to server
+            req.Internal = clientInternal;
+            req.External = clientExternal;
+            Send(req, hostExternal);
+        }
+
+        public void PollEvents()
+        {
+            if (_natPunchListener == null || (_successEvents.Count == 0 && _requestEvents.Count == 0))
+                return;
+            lock (_successEvents)
+            {
+                while (_successEvents.Count > 0)
+                {
+                    var evt = _successEvents.Dequeue();
+                    _natPunchListener.OnNatIntroductionSuccess(
+                        evt.TargetEndPoint, 
+                        evt.Type,
+                        evt.Token);
+                }
+            }
+            lock (_requestEvents)
+            {
+                while (_requestEvents.Count > 0)
+                {
+                    var evt = _requestEvents.Dequeue();
+                    _natPunchListener.OnNatIntroductionRequest(evt.LocalEndPoint, evt.RemoteEndPoint, evt.Token);
+                }
+            }
+        }
+
+        public void SendNatIntroduceRequest(string host, int port, string additionalInfo)
+        {
+            SendNatIntroduceRequest(NetUtils.MakeEndPoint(host, port), additionalInfo);
+        }
+
+        public void SendNatIntroduceRequest(IPEndPoint masterServerEndPoint, string additionalInfo)
+        {
+            //prepare outgoing data
+            string networkIp = NetUtils.GetLocalIp(LocalAddrType.IPv4);
+            if (string.IsNullOrEmpty(networkIp))
+            {
+                networkIp = NetUtils.GetLocalIp(LocalAddrType.IPv6);
+            }
+
+            Send(
+                new NatIntroduceRequestPacket
+                {
+                    Internal = NetUtils.MakeEndPoint(networkIp, _socket.LocalPort),
+                    Token = additionalInfo
+                }, 
+                masterServerEndPoint);
+        }
+
+        //We got request and must introduce
+        private void OnNatIntroductionRequest(NatIntroduceRequestPacket req, IPEndPoint senderEndPoint)
+        {
+            lock (_requestEvents)
+            {
+                _requestEvents.Enqueue(new RequestEventData
+                {
+                    LocalEndPoint = req.Internal,
+                    RemoteEndPoint = senderEndPoint,
+                    Token = req.Token
+                });
+            }
+        }
+
+        //We got introduce and must punch
+        private void OnNatIntroductionResponse(NatIntroduceResponsePacket req)
+        {
+            NetDebug.Write(NetLogLevel.Trace, "[NAT] introduction received");
+
+            // send internal punch
+            var punchPacket = new NatPunchPacket {Token = req.Token};
+            Send(punchPacket, req.Internal);
+            NetDebug.Write(NetLogLevel.Trace, "[NAT] internal punch sent to " + req.Internal);
+
+            // hack for some routers
+            SocketError errorCode = 0;
+            _socket.Ttl = 2;
+            _socket.SendTo(new[] { (byte)PacketProperty.Empty }, 0, 1, req.External, ref errorCode);
+
+            // send external punch
+            _socket.Ttl = NetConstants.SocketTTL;
+            punchPacket.IsExternal = true;
+            Send(punchPacket, req.External);
+            NetDebug.Write(NetLogLevel.Trace, "[NAT] external punch sent to " + req.External);
+        }
+
+        //We got punch and can connect
+        private void OnNatPunch(NatPunchPacket req, IPEndPoint senderEndPoint)
+        {
+            //Read info
+            NetDebug.Write(NetLogLevel.Trace, "[NAT] punch received from {0} - additional info: {1}",
+                senderEndPoint, req.Token);
+
+            //Release punch success to client; enabling him to Connect() to Sender if token is ok
+            lock (_successEvents)
+            {
+                _successEvents.Enqueue(new SuccessEventData
+                {
+                    TargetEndPoint = senderEndPoint,
+                    Type = req.IsExternal ? NatAddressType.External : NatAddressType.Internal, 
+                    Token = req.Token
+                });
+            }
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NatPunchModule.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetConstants.cs

+namespace LiteNetLib
+{
+    /// <summary>
+    /// Sending method type
+    /// </summary>
+    public enum DeliveryMethod : byte
+    {
+        /// <summary>
+        /// Unreliable. Packets can be dropped, can be duplicated, can arrive without order.
+        /// </summary>
+        Unreliable = 4,
+
+        /// <summary>
+        /// Reliable. Packets won't be dropped, won't be duplicated, can arrive without order.
+        /// </summary>
+        ReliableUnordered = 0,
+
+        /// <summary>
+        /// Unreliable. Packets can be dropped, won't be duplicated, will arrive in order.
+        /// </summary>
+        Sequenced = 1,
+
+        /// <summary>
+        /// Reliable and ordered. Packets won't be dropped, won't be duplicated, will arrive in order.
+        /// </summary>
+        ReliableOrdered = 2,
+
+        /// <summary>
+        /// Reliable only last packet. Packets can be dropped (except the last one), won't be duplicated, will arrive in order.
+        /// </summary>
+        ReliableSequenced = 3
+    }
+
+    /// <summary>
+    /// Network constants. Can be tuned from sources for your purposes.
+    /// </summary>
+    public static class NetConstants
+    {
+        //can be tuned
+        public const int DefaultWindowSize = 64;
+        public const int SocketBufferSize = 1024 * 1024; //1mb
+        public const int SocketTTL = 255;
+
+        public const int HeaderSize = 1;
+        public const int ChanneledHeaderSize = 4;
+        public const int FragmentHeaderSize = 6;
+        public const int FragmentedHeaderTotalSize = ChanneledHeaderSize + FragmentHeaderSize;
+        public const ushort MaxSequence = 32768;
+        public const ushort HalfMaxSequence = MaxSequence / 2;
+
+        //protocol
+        internal const int ProtocolId = 11;
+        internal const int MaxUdpHeaderSize = 68;
+
+        internal static readonly int[] PossibleMtu =
+        {
+            576  - MaxUdpHeaderSize, //minimal
+            1232 - MaxUdpHeaderSize,
+            1460 - MaxUdpHeaderSize, //google cloud
+            1472 - MaxUdpHeaderSize, //VPN
+            1492 - MaxUdpHeaderSize, //Ethernet with LLC and SNAP, PPPoE (RFC 1042)
+            1500 - MaxUdpHeaderSize  //Ethernet II (RFC 1191)
+        };
+
+        internal static readonly int MaxPacketSize = PossibleMtu[PossibleMtu.Length - 1];
+
+        //peer specific
+        public const byte MaxConnectionNumber = 4;
+
+        public const int PacketPoolSize = 1000;
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetConstants.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetDebug.cs

+using System;
+using System.Diagnostics;
+
+namespace LiteNetLib
+{
+    public class InvalidPacketException : ArgumentException
+    {
+        public InvalidPacketException(string message) : base(message)
+        {
+        }
+    }
+
+    public class TooBigPacketException : InvalidPacketException
+    {
+        public TooBigPacketException(string message) : base(message)
+        {
+        }
+    }
+
+    public enum NetLogLevel
+    {
+        Warning,
+        Error,
+        Trace,
+        Info
+    }
+
+    /// <summary>
+    /// Interface to implement for your own logger
+    /// </summary>
+    public interface INetLogger
+    {
+        void WriteNet(NetLogLevel level, string str, params object[] args);
+    }
+
+    /// <summary>
+    /// Static class for defining your own LiteNetLib logger instead of Console.WriteLine
+    /// or Debug.Log if compiled with UNITY flag
+    /// </summary>
+    public static class NetDebug
+    {
+        public static INetLogger Logger = null;
+        private static readonly object DebugLogLock = new object();
+        private static void WriteLogic(NetLogLevel logLevel, string str, params object[] args)
+        {
+            lock (DebugLogLock)
+            {
+                if (Logger == null)
+                {
+#if UNITY_4 || UNITY_5 || UNITY_5_3_OR_NEWER
+                    UnityEngine.Debug.Log(string.Format(str, args));
+#else
+                    Console.WriteLine(str, args);
+#endif
+                }
+                else
+                {
+                    Logger.WriteNet(logLevel, str, args);
+                }
+            }
+        }
+
+        [Conditional("DEBUG_MESSAGES")]
+        internal static void Write(string str, params object[] args)
+        {
+            WriteLogic(NetLogLevel.Trace, str, args);
+        }
+
+        [Conditional("DEBUG_MESSAGES")]
+        internal static void Write(NetLogLevel level, string str, params object[] args)
+        {
+            WriteLogic(level, str, args);
+        }
+
+        [Conditional("DEBUG_MESSAGES"), Conditional("DEBUG")]
+        internal static void WriteForce(string str, params object[] args)
+        {
+            WriteLogic(NetLogLevel.Trace, str, args);
+        }
+
+        [Conditional("DEBUG_MESSAGES"), Conditional("DEBUG")]
+        internal static void WriteForce(NetLogLevel level, string str, params object[] args)
+        {
+            WriteLogic(level, str, args);
+        }
+
+        internal static void WriteError(string str, params object[] args)
+        {
+            WriteLogic(NetLogLevel.Error, str, args);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetDebug.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetManager.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetPacket.cs

+using System;
+using System.Net;
+using LiteNetLib.Utils;
+
+namespace LiteNetLib
+{
+    internal enum PacketProperty : byte
+    {
+        Unreliable,
+        Channeled,
+        Ack,
+        Ping,
+        Pong,
+        ConnectRequest,
+        ConnectAccept,
+        Disconnect,
+        UnconnectedMessage,
+        MtuCheck,
+        MtuOk,
+        Broadcast,
+        Merged,
+        ShutdownOk,
+        PeerNotFound,
+        InvalidProtocol,
+        NatMessage,
+        Empty
+    }
+
+    internal sealed class NetPacket
+    {
+        private static readonly int LastProperty = Enum.GetValues(typeof(PacketProperty)).Length;
+        private static readonly int[] HeaderSizes;
+
+        static NetPacket()
+        {
+            HeaderSizes = new int[LastProperty+1];
+            for (int i = 0; i < HeaderSizes.Length; i++)
+            {
+                switch ((PacketProperty)i)
+                {
+                    case PacketProperty.Channeled:
+                    case PacketProperty.Ack:
+                        HeaderSizes[i] = NetConstants.ChanneledHeaderSize;
+                        break;
+                    case PacketProperty.Ping:
+                        HeaderSizes[i] = NetConstants.HeaderSize + 2;
+                        break;
+                    case PacketProperty.ConnectRequest:
+                        HeaderSizes[i] = NetConnectRequestPacket.HeaderSize;
+                        break;
+                    case PacketProperty.ConnectAccept:
+                        HeaderSizes[i] = NetConnectAcceptPacket.Size;
+                        break;
+                    case PacketProperty.Disconnect:
+                        HeaderSizes[i] = NetConstants.HeaderSize + 8;
+                        break;
+                    case PacketProperty.Pong:
+                        HeaderSizes[i] = NetConstants.HeaderSize + 10;
+                        break;
+                    default:
+                        HeaderSizes[i] = NetConstants.HeaderSize;
+                        break;
+                }
+            }
+        }
+
+        //Header
+        public PacketProperty Property
+        {
+            get { return (PacketProperty)(RawData[0] & 0x1F); }
+            set { RawData[0] = (byte)((RawData[0] & 0xE0) | (byte)value); }
+        }
+
+        public byte ConnectionNumber
+        {
+            get { return (byte)((RawData[0] & 0x60) >> 5); }
+            set { RawData[0] = (byte) ((RawData[0] & 0x9F) | (value << 5)); }
+        }
+
+        public ushort Sequence
+        {
+            get { return BitConverter.ToUInt16(RawData, 1); }
+            set { FastBitConverter.GetBytes(RawData, 1, value); }
+        }
+
+        public bool IsFragmented
+        {
+            get { return (RawData[0] & 0x80) != 0; }
+        }
+
+        public void MarkFragmented()
+        {
+            RawData[0] |= 0x80; //set first bit
+        }
+
+        public byte ChannelId
+        {
+            get { return RawData[3]; }
+            set { RawData[3] = value; }
+        }
+
+        public ushort FragmentId
+        {
+            get { return BitConverter.ToUInt16(RawData, 4); }
+            set { FastBitConverter.GetBytes(RawData, 4, value); }
+        }
+
+        public ushort FragmentPart
+        {
+            get { return BitConverter.ToUInt16(RawData, 6); }
+            set { FastBitConverter.GetBytes(RawData, 6, value); }
+        }
+
+        public ushort FragmentsTotal
+        {
+            get { return BitConverter.ToUInt16(RawData, 8); }
+            set { FastBitConverter.GetBytes(RawData, 8, value); }
+        }
+
+        //Data
+        public byte[] RawData;
+        public int Size;
+
+        //Delivery
+        public object UserData;
+
+        //Pool node
+        public NetPacket Next;
+
+        public NetPacket(int size)
+        {
+            RawData = new byte[size];
+            Size = size;
+        }
+
+        public NetPacket(PacketProperty property, int size)
+        {
+            size += GetHeaderSize(property);
+            RawData = new byte[size];
+            Property = property;
+            Size = size;
+        }
+
+        public static int GetHeaderSize(PacketProperty property)
+        {
+            return HeaderSizes[(int)property];
+        }
+
+        public int GetHeaderSize()
+        {
+            return HeaderSizes[RawData[0] & 0x1F];
+        }
+
+        //Packet constructor from byte array
+        public bool FromBytes(byte[] data, int start, int packetSize)
+        {
+            //Reading property
+            byte property = (byte)(data[start] & 0x1F);
+            bool fragmented = (data[start] & 0x80) != 0;
+            int headerSize = HeaderSizes[property];
+
+            if (property > LastProperty || packetSize < headerSize ||
+               (fragmented && packetSize < headerSize + NetConstants.FragmentHeaderSize) ||
+               data.Length < start + packetSize)
+            {
+                return false;
+            }
+
+            Buffer.BlockCopy(data, start, RawData, 0, packetSize);
+            Size = (ushort)packetSize;
+            return true;
+        }
+    }
+
+    internal sealed class NetConnectRequestPacket
+    {
+        public const int HeaderSize = 14;
+        public readonly long ConnectionTime;
+        public readonly byte ConnectionNumber;
+        public readonly byte[] TargetAddress;
+        public readonly NetDataReader Data;
+
+        private NetConnectRequestPacket(long connectionTime, byte connectionNumber, byte[] targetAddress, NetDataReader data)
+        {
+            ConnectionTime = connectionTime;
+            ConnectionNumber = connectionNumber;
+            TargetAddress = targetAddress;
+            Data = data;
+        }
+
+        public static int GetProtocolId(NetPacket packet)
+        {
+            return BitConverter.ToInt32(packet.RawData, 1);
+        }
+        
+        public static NetConnectRequestPacket FromData(NetPacket packet)
+        {
+            if (packet.ConnectionNumber >= NetConstants.MaxConnectionNumber)
+                return null;
+
+            //Getting new id for peer
+            long connectionId = BitConverter.ToInt64(packet.RawData, 5);
+            
+            //Get target address
+            int addrSize = packet.RawData[13];
+            if (addrSize != 16 && addrSize != 28)
+                return null;
+            byte[] addressBytes = new byte[addrSize];
+            Buffer.BlockCopy(packet.RawData, 14, addressBytes, 0, addrSize);
+
+            // Read data and create request
+            var reader = new NetDataReader(null, 0, 0);
+            if (packet.Size > HeaderSize+addrSize)
+                reader.SetSource(packet.RawData, HeaderSize + addrSize, packet.Size);
+
+            return new NetConnectRequestPacket(connectionId, packet.ConnectionNumber, addressBytes, reader);
+        }
+
+        public static NetPacket Make(NetDataWriter connectData, SocketAddress addressBytes, long connectId)
+        {
+            //Make initial packet
+            var packet = new NetPacket(PacketProperty.ConnectRequest, connectData.Length+addressBytes.Size);
+
+            //Add data
+            FastBitConverter.GetBytes(packet.RawData, 1, NetConstants.ProtocolId);
+            FastBitConverter.GetBytes(packet.RawData, 5, connectId);
+            packet.RawData[13] = (byte)addressBytes.Size;
+            for (int i = 0; i < addressBytes.Size; i++)
+                packet.RawData[14+i] = addressBytes[i];
+            Buffer.BlockCopy(connectData.Data, 0, packet.RawData, 14+addressBytes.Size, connectData.Length);
+            return packet;
+        }
+    }
+
+    internal sealed class NetConnectAcceptPacket
+    {
+        public const int Size = 11;
+        public readonly long ConnectionId;
+        public readonly byte ConnectionNumber;
+        public readonly bool IsReusedPeer;
+
+        private NetConnectAcceptPacket(long connectionId, byte connectionNumber, bool isReusedPeer)
+        {
+            ConnectionId = connectionId;
+            ConnectionNumber = connectionNumber;
+            IsReusedPeer = isReusedPeer;
+        }
+
+        public static NetConnectAcceptPacket FromData(NetPacket packet)
+        {
+            if (packet.Size > Size)
+                return null;
+
+            long connectionId = BitConverter.ToInt64(packet.RawData, 1);
+            //check connect num
+            byte connectionNumber = packet.RawData[9];
+            if (connectionNumber >= NetConstants.MaxConnectionNumber)
+                return null;
+            //check reused flag
+            byte isReused = packet.RawData[10];
+            if (isReused > 1)
+                return null;
+
+            return new NetConnectAcceptPacket(connectionId, connectionNumber, isReused == 1);
+        }
+
+        public static NetPacket Make(long connectId, byte connectNum, bool reusedPeer)
+        {
+            var packet = new NetPacket(PacketProperty.ConnectAccept, 0);
+            FastBitConverter.GetBytes(packet.RawData, 1, connectId);
+            packet.RawData[9] = connectNum;
+            packet.RawData[10] = (byte)(reusedPeer ? 1 : 0);
+            return packet;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetPacket.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetPacketPool.cs

+using System;
+using System.Threading;
+
+namespace LiteNetLib
+{
+    internal sealed class NetPacketPool
+    {
+        private NetPacket _head;
+        private int _count;
+
+        public NetPacket GetWithData(PacketProperty property, byte[] data, int start, int length)
+        {
+            int headerSize = NetPacket.GetHeaderSize(property);
+            NetPacket packet = GetPacket(length + headerSize);
+            packet.Property = property;
+            Buffer.BlockCopy(data, start, packet.RawData, headerSize, length);
+            return packet;
+        }
+
+        //Get packet with size
+        public NetPacket GetWithProperty(PacketProperty property, int size)
+        {
+            NetPacket packet = GetPacket(size + NetPacket.GetHeaderSize(property));
+            packet.Property = property;
+            return packet;
+        }
+
+        public NetPacket GetWithProperty(PacketProperty property)
+        {
+            NetPacket packet = GetPacket(NetPacket.GetHeaderSize(property));
+            packet.Property = property;
+            return packet;
+        }
+
+        public NetPacket GetPacket(int size)
+        {
+            if (size > NetConstants.MaxPacketSize) 
+                return new NetPacket(size);
+
+            NetPacket packet;
+            do
+            {
+                packet = _head;
+                if (packet == null)
+                    return new NetPacket(size);
+            } while (packet != Interlocked.CompareExchange(ref _head, packet.Next, packet));
+
+            _count--;
+            packet.Size = size;
+            if (packet.RawData.Length < size)
+                packet.RawData = new byte[size];
+            return packet;
+        }
+
+        public void Recycle(NetPacket packet)
+        {
+            if (packet.RawData.Length > NetConstants.MaxPacketSize || _count >= NetConstants.PacketPoolSize)
+            {
+                //Don't pool big packets. Save memory
+                return;
+            }
+
+            _count++;
+
+            //Clean fragmented flag
+            packet.RawData[0] = 0;
+
+            do
+            {
+                packet.Next = _head;
+            } while (packet.Next != Interlocked.CompareExchange(ref _head, packet, packet.Next));
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetPacketPool.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetPeer.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetSocket.cs

+#if UNITY_5_3_OR_NEWER
+#define UNITY
+#if UNITY_IOS && !UNITY_EDITOR
+using UnityEngine;
+#endif
+#endif
+#if NETSTANDARD || NETCOREAPP
+using System.Runtime.InteropServices;
+#endif
+
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Threading;
+
+namespace LiteNetLib
+{
+#if UNITY_IOS && !UNITY_EDITOR
+    public class UnitySocketFix : MonoBehaviour
+    {
+        internal IPAddress BindAddrIPv4;
+        internal IPAddress BindAddrIPv6;
+        internal bool Reuse;
+        internal IPv6Mode IPv6;
+        internal int Port;
+        internal bool Paused;
+        internal NetSocket Socket;
+
+        private void Update()
+        {
+            if (Socket == null)
+                Destroy(gameObject);
+        }
+
+        private void OnApplicationPause(bool pause)
+        {
+            if (Socket == null)
+                return;
+            if (pause)
+            {
+                Paused = true;
+                Socket.Close(true);
+            }
+            else if (Paused)
+            {
+                if (!Socket.Bind(BindAddrIPv4, BindAddrIPv6, Port, Reuse, IPv6))
+                {
+                    NetDebug.WriteError("[S] Cannot restore connection \"{0}\",\"{1}\" port {2}", BindAddrIPv4, BindAddrIPv6, Port);
+                    Socket.OnErrorRestore();
+                }
+            }
+        }
+    }
+#endif
+
+    internal interface INetSocketListener
+    {
+        void OnMessageReceived(byte[] data, int length, SocketError errorCode, IPEndPoint remoteEndPoint);
+    }
+
+    internal sealed class NetSocket
+    {
+        public const int ReceivePollingTime = 500000; //0.5 second
+        private Socket _udpSocketv4;
+        private Socket _udpSocketv6;
+        private Thread _threadv4;
+        private Thread _threadv6;
+        private readonly INetSocketListener _listener;
+        private const int SioUdpConnreset = -1744830452; //SIO_UDP_CONNRESET = IOC_IN | IOC_VENDOR | 12
+        private static readonly IPAddress MulticastAddressV6 = IPAddress.Parse("ff02::1");
+        internal static readonly bool IPv6Support;
+#if UNITY_IOS && !UNITY_EDITOR
+        private UnitySocketFix _unitySocketFix;
+
+        public void OnErrorRestore()
+        {
+            Close(false);
+            _listener.OnMessageReceived(null, 0, SocketError.NotConnected, new IPEndPoint(0,0));
+        }
+#endif
+        public int LocalPort { get; private set; }
+        public volatile bool IsRunning;
+
+        public short Ttl
+        {
+            get
+            {
+#if UNITY_SWITCH
+                return 0;
+#else
+                if (_udpSocketv4.AddressFamily == AddressFamily.InterNetworkV6)
+                    return (short)_udpSocketv4.GetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.HopLimit);
+                return _udpSocketv4.Ttl;
+#endif
+            }
+            set
+            {
+#if !UNITY_SWITCH
+                if (_udpSocketv4.AddressFamily == AddressFamily.InterNetworkV6)
+                    _udpSocketv4.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.HopLimit, value);
+                else
+                    _udpSocketv4.Ttl = value;
+#endif
+            }
+        }
+
+        static NetSocket()
+        {
+#if DISABLE_IPV6 || (!UNITY_EDITOR && ENABLE_IL2CPP && !UNITY_2018_3_OR_NEWER)
+            IPv6Support = false;
+#elif !UNITY_2019_1_OR_NEWER && !UNITY_2018_4_OR_NEWER && (!UNITY_EDITOR && ENABLE_IL2CPP && UNITY_2018_3_OR_NEWER)
+            string version = UnityEngine.Application.unityVersion;
+            IPv6Support = Socket.OSSupportsIPv6 && int.Parse(version.Remove(version.IndexOf('f')).Split('.')[2]) >= 6;
+#elif UNITY_2018_2_OR_NEWER
+            IPv6Support = Socket.OSSupportsIPv6;
+#elif UNITY
+#pragma warning disable 618
+            IPv6Support = Socket.SupportsIPv6;
+#pragma warning restore 618
+#else
+            IPv6Support = Socket.OSSupportsIPv6;
+#endif
+        }
+
+        public NetSocket(INetSocketListener listener)
+        {
+            _listener = listener;
+        }
+
+        private bool IsActive()
+        {
+#if UNITY_IOS && !UNITY_EDITOR
+            var unitySocketFix = _unitySocketFix; //save for multithread
+            if (unitySocketFix != null && unitySocketFix.Paused)
+                return false;
+#endif
+            return IsRunning;
+        }
+
+        private void ReceiveLogic(object state)
+        {
+            Socket socket = (Socket)state;
+            EndPoint bufferEndPoint = new IPEndPoint(socket.AddressFamily == AddressFamily.InterNetwork ? IPAddress.Any : IPAddress.IPv6Any, 0);
+            byte[] receiveBuffer = new byte[NetConstants.MaxPacketSize];
+
+            while (IsActive())
+            {
+                int result;
+
+                //Reading data
+                try
+                {
+                    if (socket.Available == 0 && !socket.Poll(ReceivePollingTime, SelectMode.SelectRead))
+                        continue;
+                    result = socket.ReceiveFrom(receiveBuffer, 0, receiveBuffer.Length, SocketFlags.None,
+                        ref bufferEndPoint);
+                }
+                catch (SocketException ex)
+                {
+                    switch (ex.SocketErrorCode)
+                    {
+#if UNITY_IOS && !UNITY_EDITOR
+                        case SocketError.NotConnected:
+#endif
+                        case SocketError.Interrupted:
+                        case SocketError.NotSocket:
+                            return;
+                        case SocketError.ConnectionReset:
+                        case SocketError.MessageSize:
+                        case SocketError.TimedOut:
+                            NetDebug.Write(NetLogLevel.Trace, "[R]Ignored error: {0} - {1}",
+                                (int)ex.SocketErrorCode, ex.ToString());
+                            break;
+                        default:
+                            NetDebug.WriteError("[R]Error code: {0} - {1}", (int)ex.SocketErrorCode,
+                                ex.ToString());
+                            _listener.OnMessageReceived(null, 0, ex.SocketErrorCode, (IPEndPoint)bufferEndPoint);
+                            break;
+                    }
+                    continue;
+                }
+                catch (ObjectDisposedException)
+                {
+                    return;
+                }
+
+                //All ok!
+                NetDebug.Write(NetLogLevel.Trace, "[R]Received data from {0}, result: {1}", bufferEndPoint.ToString(), result);
+                _listener.OnMessageReceived(receiveBuffer, result, 0, (IPEndPoint)bufferEndPoint);
+            }
+        }
+
+        public bool Bind(IPAddress addressIPv4, IPAddress addressIPv6, int port, bool reuseAddress, IPv6Mode ipv6Mode)
+        {
+            if (IsActive())
+                return false;
+            bool dualMode = ipv6Mode == IPv6Mode.DualMode && IPv6Support;
+
+            _udpSocketv4 = new Socket(
+                dualMode ? AddressFamily.InterNetworkV6 : AddressFamily.InterNetwork, 
+                SocketType.Dgram, 
+                ProtocolType.Udp);
+
+            if (!BindSocket(_udpSocketv4, new IPEndPoint(dualMode ? addressIPv6 : addressIPv4, port), reuseAddress, ipv6Mode))
+                return false;
+
+            LocalPort = ((IPEndPoint) _udpSocketv4.LocalEndPoint).Port;
+
+#if UNITY_IOS && !UNITY_EDITOR
+            if (_unitySocketFix == null)
+            {
+                var unityFixObj = new GameObject("LiteNetLib_UnitySocketFix");
+                GameObject.DontDestroyOnLoad(unityFixObj);
+                _unitySocketFix = unityFixObj.AddComponent<UnitySocketFix>();
+                _unitySocketFix.Socket = this;
+                _unitySocketFix.BindAddrIPv4 = addressIPv4;
+                _unitySocketFix.BindAddrIPv6 = addressIPv6;
+                _unitySocketFix.Reuse = reuseAddress;
+                _unitySocketFix.Port = LocalPort;
+                _unitySocketFix.IPv6 = ipv6Mode;
+            }
+            else
+            {
+                _unitySocketFix.Paused = false;
+            }
+#endif
+            if (dualMode)
+                _udpSocketv6 = _udpSocketv4;
+
+            IsRunning = true;
+            _threadv4 = new Thread(ReceiveLogic)
+            {
+                Name = "SocketThreadv4(" + LocalPort + ")",
+                IsBackground = true
+            };
+            _threadv4.Start(_udpSocketv4);
+
+            //Check IPv6 support
+            if (!IPv6Support || ipv6Mode != IPv6Mode.SeparateSocket)
+                return true;
+
+            _udpSocketv6 = new Socket(AddressFamily.InterNetworkV6, SocketType.Dgram, ProtocolType.Udp);
+            //Use one port for two sockets
+            if (BindSocket(_udpSocketv6, new IPEndPoint(addressIPv6, LocalPort), reuseAddress, ipv6Mode))
+            {
+                _threadv6 = new Thread(ReceiveLogic)
+                {
+                    Name = "SocketThreadv6(" + LocalPort + ")",
+                    IsBackground = true
+                };
+                _threadv6.Start(_udpSocketv6);
+            }
+
+            return true;
+        }
+
+        private bool BindSocket(Socket socket, IPEndPoint ep, bool reuseAddress, IPv6Mode ipv6Mode)
+        {
+            //Setup socket
+            socket.ReceiveTimeout = 500;
+            socket.SendTimeout = 500;
+            socket.ReceiveBufferSize = NetConstants.SocketBufferSize;
+            socket.SendBufferSize = NetConstants.SocketBufferSize;
+#if !UNITY || UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN
+#if NETSTANDARD || NETCOREAPP
+            if(RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+#endif
+            try
+            {
+                socket.IOControl(SioUdpConnreset, new byte[] { 0 }, null);
+            }
+            catch
+            {
+                //ignored
+            }
+#endif
+
+            try
+            {
+                socket.ExclusiveAddressUse = !reuseAddress;
+                socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, reuseAddress);
+            }
+            catch
+            {
+                //Unity with IL2CPP throws an exception here, it doesn't matter in most cases so just ignore it
+            }
+            if (socket.AddressFamily == AddressFamily.InterNetwork)
+            {
+                Ttl = NetConstants.SocketTTL;
+
+#if NETSTANDARD || NETCOREAPP
+                if(!RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+#endif
+                try { socket.DontFragment = true; }
+                catch (SocketException e)
+                {
+                    NetDebug.WriteError("[B]DontFragment error: {0}", e.SocketErrorCode);
+                }
+
+                try { socket.EnableBroadcast = true; }
+                catch (SocketException e)
+                {
+                    NetDebug.WriteError("[B]Broadcast error: {0}", e.SocketErrorCode);
+                }
+            }
+            else //IPv6 specific
+            {
+                if (ipv6Mode == IPv6Mode.DualMode)
+                {
+                    try
+                    {
+                        //Disable IPv6 only mode
+                        socket.SetSocketOption(SocketOptionLevel.IPv6, (SocketOptionName)27, false);
+                    }
+                    catch(Exception e)
+                    {
+                        NetDebug.WriteError("[B]Bind exception (dualmode setting): {0}", e.ToString());
+                    }
+                }
+            }
+
+            //Bind
+            try
+            {
+                socket.Bind(ep);
+                NetDebug.Write(NetLogLevel.Trace, "[B]Successfully binded to port: {0}", ((IPEndPoint)socket.LocalEndPoint).Port);
+
+                //join multicast
+                if (socket.AddressFamily == AddressFamily.InterNetworkV6)
+                {
+                    try
+                    {
+#if !UNITY
+                        socket.SetSocketOption(
+                            SocketOptionLevel.IPv6,
+                            SocketOptionName.AddMembership,
+                            new IPv6MulticastOption(MulticastAddressV6));
+#endif
+                    }
+                    catch (Exception)
+                    {
+                        // Unity3d throws exception - ignored
+                    }
+                }
+            }
+            catch (SocketException bindException)
+            {
+                switch (bindException.SocketErrorCode)
+                {
+                    //IPv6 bind fix
+                    case SocketError.AddressAlreadyInUse:
+                        if (socket.AddressFamily == AddressFamily.InterNetworkV6 && ipv6Mode != IPv6Mode.DualMode)
+                        {
+                            try
+                            {
+                                //Set IPv6Only
+                                socket.SetSocketOption(SocketOptionLevel.IPv6, (SocketOptionName)27, true);
+                                socket.Bind(ep);
+                            }
+#if UNITY_2018_3_OR_NEWER
+                            catch (SocketException ex)
+                            {
+
+                                //because its fixed in 2018_3
+                                NetDebug.WriteError("[B]Bind exception: {0}, errorCode: {1}", ex.ToString(), ex.SocketErrorCode);
+#else
+                            catch(SocketException)
+                            {
+#endif
+                                return false;
+                            }
+                            return true;
+                        }
+                        break;
+                    //hack for iOS (Unity3D)
+                    case SocketError.AddressFamilyNotSupported:
+                        return true;
+                }
+                NetDebug.WriteError("[B]Bind exception: {0}, errorCode: {1}", bindException.ToString(), bindException.SocketErrorCode);
+                return false;
+            }
+            return true;
+        }
+
+        public bool SendBroadcast(byte[] data, int offset, int size, int port)
+        {
+            if (!IsActive())
+                return false;
+            bool broadcastSuccess = false;
+            bool multicastSuccess = false;
+            try
+            {
+                broadcastSuccess = _udpSocketv4.SendTo(
+                             data,
+                             offset,
+                             size,
+                             SocketFlags.None,
+                             new IPEndPoint(IPAddress.Broadcast, port)) > 0;
+
+                if (_udpSocketv6 != null)
+                {
+                    multicastSuccess = _udpSocketv6.SendTo(
+                                                data,
+                                                offset,
+                                                size,
+                                                SocketFlags.None,
+                                                new IPEndPoint(MulticastAddressV6, port)) > 0;
+                }
+            }
+            catch (Exception ex)
+            {
+                NetDebug.WriteError("[S][MCAST]" + ex);
+                return broadcastSuccess;
+            }
+            return broadcastSuccess || multicastSuccess;
+        }
+
+        public int SendTo(byte[] data, int offset, int size, IPEndPoint remoteEndPoint, ref SocketError errorCode)
+        {
+            if (!IsActive())
+                return 0;
+            try
+            {
+                var socket = _udpSocketv4;
+                if (remoteEndPoint.AddressFamily == AddressFamily.InterNetworkV6 && IPv6Support)
+                    socket = _udpSocketv6;
+                int result = socket.SendTo(data, offset, size, SocketFlags.None, remoteEndPoint);
+                NetDebug.Write(NetLogLevel.Trace, "[S]Send packet to {0}, result: {1}", remoteEndPoint, result);
+                return result;
+            }
+            catch (SocketException ex)
+            {
+                switch (ex.SocketErrorCode)
+                {
+                    case SocketError.NoBufferSpaceAvailable:
+                    case SocketError.Interrupted:
+                        return 0;
+                    case SocketError.MessageSize: //do nothing              
+                        break;
+                    default:
+                        NetDebug.WriteError("[S]" + ex);
+                        break;
+                }
+                errorCode = ex.SocketErrorCode;
+                return -1;
+            }
+            catch (Exception ex)
+            {
+                NetDebug.WriteError("[S]" + ex);
+                return -1;
+            }
+        }
+
+        public void Close(bool suspend)
+        {
+            if (!suspend)
+            {
+                IsRunning = false;
+#if UNITY_IOS && !UNITY_EDITOR
+                _unitySocketFix.Socket = null;
+                _unitySocketFix = null;
+#endif
+            }
+            //cleanup dual mode
+            if (_udpSocketv4 == _udpSocketv6)
+                _udpSocketv6 = null;
+
+            if (_udpSocketv4 != null)
+                _udpSocketv4.Close();
+            if (_udpSocketv6 != null)
+                _udpSocketv6.Close();
+            _udpSocketv4 = null;
+            _udpSocketv6 = null;
+
+            if (_threadv4 != null && _threadv4 != Thread.CurrentThread)
+                _threadv4.Join();
+            if (_threadv6 != null && _threadv6 != Thread.CurrentThread)
+                _threadv6.Join();
+            _threadv4 = null;
+            _threadv6 = null;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetSocket.cs.meta

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+guid: 1dbea90b528ba0448a61b7222dab0657
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetStatistics.cs

+namespace LiteNetLib
+{
+    public sealed class NetStatistics
+    {
+        public ulong PacketsSent;
+        public ulong PacketsReceived;
+        public ulong BytesSent;
+        public ulong BytesReceived;
+        public ulong PacketLoss;
+        public ulong PacketLossPercent
+        {
+            get { return PacketsSent == 0 ? 0 : PacketLoss * 100 / PacketsSent; }
+        }
+
+        public ulong SequencedPacketLoss;
+
+        public void Reset()
+        {
+            PacketsSent = 0;
+            PacketsReceived = 0;
+            BytesSent = 0;
+            BytesReceived = 0;
+            PacketLoss = 0;
+        }
+
+        public override string ToString()
+        {
+            return
+                string.Format(
+                    "BytesReceived: {0}\nPacketsReceived: {1}\nBytesSent: {2}\nPacketsSent: {3}\nPacketLoss: {4}\nPacketLossPercent: {5}\n",
+                    BytesReceived,
+                    PacketsReceived,
+                    BytesSent,
+                    PacketsSent,
+                    PacketLoss,
+                    PacketLossPercent);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetStatistics.cs.meta

+fileFormatVersion: 2
+guid: bdf18575c3cbb17488b16fe4463e64c4
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetUtils.cs

+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Net.Sockets;
+using System.Net.NetworkInformation;
+
+namespace LiteNetLib
+{
+    /// <summary>
+    /// Address type that you want to receive from NetUtils.GetLocalIp method
+    /// </summary>
+    [Flags]
+    public enum LocalAddrType
+    {
+        IPv4 = 1,
+        IPv6 = 2,
+        All = IPv4 | IPv6
+    }
+
+    /// <summary>
+    /// Some specific network utilities
+    /// </summary>
+    public static class NetUtils
+    {
+        public static IPEndPoint MakeEndPoint(string hostStr, int port)
+        {
+            return new IPEndPoint(ResolveAddress(hostStr), port);
+        }
+
+        public static IPAddress ResolveAddress(string hostStr)
+        {
+            if(hostStr == "localhost")
+                return IPAddress.Loopback;
+            
+            IPAddress ipAddress;
+            if (!IPAddress.TryParse(hostStr, out ipAddress))
+            {
+                if (NetSocket.IPv6Support)
+                    ipAddress = ResolveAddress(hostStr, AddressFamily.InterNetworkV6);
+                if (ipAddress == null)
+                    ipAddress = ResolveAddress(hostStr, AddressFamily.InterNetwork);
+            }
+            if (ipAddress == null)
+                throw new ArgumentException("Invalid address: " + hostStr);
+
+            return ipAddress;
+        }
+
+        private static IPAddress ResolveAddress(string hostStr, AddressFamily addressFamily)
+        {
+            IPAddress[] addresses = ResolveAddresses(hostStr);
+            foreach (IPAddress ip in addresses)
+            {
+                if (ip.AddressFamily == addressFamily)
+                {
+                    return ip;
+                }
+            }
+            return null;
+        }
+
+        private static IPAddress[] ResolveAddresses(string hostStr)
+        {
+#if NETSTANDARD || NETCOREAPP
+            var hostTask = Dns.GetHostEntryAsync(hostStr);
+            hostTask.GetAwaiter().GetResult();
+            var host = hostTask.Result;
+#else
+            var host = Dns.GetHostEntry(hostStr);
+#endif
+            return host.AddressList;
+        }
+
+        /// <summary>
+        /// Get all local ip addresses
+        /// </summary>
+        /// <param name="addrType">type of address (IPv4, IPv6 or both)</param>
+        /// <returns>List with all local ip addresses</returns>
+        public static List<string> GetLocalIpList(LocalAddrType addrType)
+        {
+            List<string> targetList = new List<string>();
+            GetLocalIpList(targetList, addrType);
+            return targetList;
+        }
+
+        /// <summary>
+        /// Get all local ip addresses (non alloc version)
+        /// </summary>
+        /// <param name="targetList">result list</param>
+        /// <param name="addrType">type of address (IPv4, IPv6 or both)</param>
+        public static void GetLocalIpList(IList<string> targetList, LocalAddrType addrType)
+        {
+            bool ipv4 = (addrType & LocalAddrType.IPv4) == LocalAddrType.IPv4;
+            bool ipv6 = (addrType & LocalAddrType.IPv6) == LocalAddrType.IPv6;
+            try
+            {
+                foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
+                {
+                    //Skip loopback and disabled network interfaces
+                    if (ni.NetworkInterfaceType == NetworkInterfaceType.Loopback || 
+                        ni.OperationalStatus != OperationalStatus.Up)
+                        continue;
+
+                    var ipProps = ni.GetIPProperties();
+
+                    //Skip address without gateway
+                    if (ipProps.GatewayAddresses.Count == 0)
+                        continue;
+
+                    foreach (UnicastIPAddressInformation ip in ipProps.UnicastAddresses)
+                    {
+                        var address = ip.Address;
+                        if ((ipv4 && address.AddressFamily == AddressFamily.InterNetwork) ||
+                            (ipv6 && address.AddressFamily == AddressFamily.InterNetworkV6))
+                            targetList.Add(address.ToString());
+                    }
+                }
+            }
+            catch
+            {
+                //ignored
+            }
+
+            //Fallback mode (unity android)
+            if (targetList.Count == 0)
+            {
+                IPAddress[] addresses = ResolveAddresses(Dns.GetHostName());
+                foreach (IPAddress ip in addresses)
+                {
+                    if((ipv4 && ip.AddressFamily == AddressFamily.InterNetwork) ||
+                       (ipv6 && ip.AddressFamily == AddressFamily.InterNetworkV6))
+                        targetList.Add(ip.ToString());
+                }
+            }
+            if (targetList.Count == 0)
+            {
+                if(ipv4)
+                    targetList.Add("127.0.0.1");
+                if(ipv6)
+                    targetList.Add("::1");
+            }
+        }
+
+        private static readonly List<string> IpList = new List<string>();
+        /// <summary>
+        /// Get first detected local ip address
+        /// </summary>
+        /// <param name="addrType">type of address (IPv4, IPv6 or both)</param>
+        /// <returns>IP address if available. Else - string.Empty</returns>
+        public static string GetLocalIp(LocalAddrType addrType)
+        {
+            lock (IpList)
+            {
+                IpList.Clear();
+                GetLocalIpList(IpList, addrType);
+                return IpList.Count == 0 ? string.Empty : IpList[0];
+            }
+        }
+
+        // ===========================================
+        // Internal and debug log related stuff
+        // ===========================================
+        internal static void PrintInterfaceInfos()
+        {
+            NetDebug.WriteForce(NetLogLevel.Info, "IPv6Support: {0}", NetSocket.IPv6Support);
+            try
+            {
+                foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
+                {
+                    foreach (UnicastIPAddressInformation ip in ni.GetIPProperties().UnicastAddresses)
+                    {
+                        if (ip.Address.AddressFamily == AddressFamily.InterNetwork ||
+                            ip.Address.AddressFamily == AddressFamily.InterNetworkV6)
+                        {
+                            NetDebug.WriteForce(
+                                NetLogLevel.Info,
+                                "Interface: {0}, Type: {1}, Ip: {2}, OpStatus: {3}",
+                                ni.Name,
+                                ni.NetworkInterfaceType.ToString(),
+                                ip.Address.ToString(),
+                                ni.OperationalStatus.ToString());
+                        }
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                NetDebug.WriteForce(NetLogLevel.Info, "Error while getting interface infos: {0}", e.ToString());
+            }
+        }
+
+        internal static int RelativeSequenceNumber(int number, int expected)
+        {
+            return (number - expected + NetConstants.MaxSequence + NetConstants.HalfMaxSequence) % NetConstants.MaxSequence - NetConstants.HalfMaxSequence;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/NetUtils.cs.meta

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+guid: 9ba71ed4d3dcdf747abc2f5fc7a2a6dd
+MonoImporter:
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+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/ReliableChannel.cs

+using System;
+
+namespace LiteNetLib
+{
+    internal sealed class ReliableChannel : BaseChannel
+    {
+        private struct PendingPacket
+        {
+            private NetPacket _packet;
+            private long _timeStamp;
+            private bool _isSent;
+
+            public override string ToString()
+            {
+                return _packet == null ? "Empty" : _packet.Sequence.ToString();
+            }
+
+            public void Init(NetPacket packet)
+            {
+                _packet = packet;
+                _isSent = false;
+            }
+
+            public void TrySend(long currentTime, NetPeer peer)
+            {
+                if (_packet == null)
+                    return;
+                if (_isSent) //check send time
+                {
+                    double resendDelay = peer.ResendDelay * TimeSpan.TicksPerMillisecond;
+                    double packetHoldTime = currentTime - _timeStamp;
+                    if (packetHoldTime < resendDelay)
+                        return;
+                    NetDebug.Write("[RC]Resend: {0} > {1}", (int)packetHoldTime, resendDelay);
+                }
+                _timeStamp = currentTime;
+                _isSent = true;
+                peer.SendUserData(_packet);
+            }
+
+            public bool Clear(NetPeer peer)
+            {
+                if (_packet != null)
+                {
+                    peer.RecycleAndDeliver(_packet);
+                    _packet = null;
+                    return true;
+                }
+                return false;
+            }
+        }
+
+        private readonly NetPacket _outgoingAcks;            //for send acks
+        private readonly PendingPacket[] _pendingPackets;    //for unacked packets and duplicates
+        private readonly NetPacket[] _receivedPackets;       //for order
+        private readonly bool[] _earlyReceived;              //for unordered
+
+        private int _localSeqence;
+        private int _remoteSequence;
+        private int _localWindowStart;
+        private int _remoteWindowStart;
+
+        private bool _mustSendAcks;
+
+        private readonly DeliveryMethod _deliveryMethod;
+        private readonly bool _ordered;
+        private readonly int _windowSize;
+        private const int BitsInByte = 8;
+        private readonly byte _id;
+
+        public ReliableChannel(NetPeer peer, bool ordered, byte id) : base(peer)
+        {
+            _id = id;
+            _windowSize = NetConstants.DefaultWindowSize;
+            _ordered = ordered;
+            _pendingPackets = new PendingPacket[_windowSize];
+            for (int i = 0; i < _pendingPackets.Length; i++)
+                _pendingPackets[i] = new PendingPacket();
+
+            if (_ordered)
+            {
+                _deliveryMethod = DeliveryMethod.ReliableOrdered;
+                _receivedPackets = new NetPacket[_windowSize];
+            }
+            else
+            {
+                _deliveryMethod = DeliveryMethod.ReliableUnordered;
+                _earlyReceived = new bool[_windowSize];
+            }
+
+            _localWindowStart = 0;
+            _localSeqence = 0;
+            _remoteSequence = 0;
+            _remoteWindowStart = 0;
+            _outgoingAcks = new NetPacket(PacketProperty.Ack, (_windowSize - 1) / BitsInByte + 2) {ChannelId = id};
+        }
+
+        //ProcessAck in packet
+        private void ProcessAck(NetPacket packet)
+        {
+            if (packet.Size != _outgoingAcks.Size)
+            {
+                NetDebug.Write("[PA]Invalid acks packet size");
+                return;
+            }
+
+            ushort ackWindowStart = packet.Sequence;
+            int windowRel = NetUtils.RelativeSequenceNumber(_localWindowStart, ackWindowStart);
+            if (ackWindowStart >= NetConstants.MaxSequence || windowRel < 0)
+            {
+                NetDebug.Write("[PA]Bad window start");
+                return;
+            }
+
+            //check relevance     
+            if (windowRel >= _windowSize)
+            {
+                NetDebug.Write("[PA]Old acks");
+                return;
+            }
+
+            byte[] acksData = packet.RawData;
+            lock (_pendingPackets)
+            {
+                for (int pendingSeq = _localWindowStart;
+                    pendingSeq != _localSeqence;
+                    pendingSeq = (pendingSeq + 1) % NetConstants.MaxSequence)
+                {
+                    int rel = NetUtils.RelativeSequenceNumber(pendingSeq, ackWindowStart);
+                    if (rel >= _windowSize)
+                    {
+                        NetDebug.Write("[PA]REL: " + rel);
+                        break;
+                    }
+
+                    int pendingIdx = pendingSeq % _windowSize;
+                    int currentByte = NetConstants.ChanneledHeaderSize + pendingIdx / BitsInByte;
+                    int currentBit = pendingIdx % BitsInByte;
+                    if ((acksData[currentByte] & (1 << currentBit)) == 0)
+                    {
+#if DEBUG
+                        Peer.Statistics.PacketLoss++;
+#else
+                        if (Peer.NetManager.EnableStatistics) 
+                        {
+                            Peer.Statistics.PacketLoss++;
+                        }
+#endif
+
+                        //Skip false ack
+                        NetDebug.Write("[PA]False ack: {0}", pendingSeq);
+                        continue;
+                    }
+
+                    if (pendingSeq == _localWindowStart)
+                    {
+                        //Move window                
+                        _localWindowStart = (_localWindowStart + 1) % NetConstants.MaxSequence;
+                    }
+
+                    //clear packet
+                    if (_pendingPackets[pendingIdx].Clear(Peer))
+                        NetDebug.Write("[PA]Removing reliableInOrder ack: {0} - true", pendingSeq);
+                }
+            }
+        }
+
+        public override void SendNextPackets()
+        {
+            if (_mustSendAcks)
+            {
+                _mustSendAcks = false;
+                NetDebug.Write("[RR]SendAcks");
+                lock(_outgoingAcks)
+                    Peer.SendUserData(_outgoingAcks);
+            }
+
+            long currentTime = DateTime.UtcNow.Ticks;
+            lock (_pendingPackets)
+            {
+                //get packets from queue
+                lock (OutgoingQueue)
+                {
+                    while (OutgoingQueue.Count > 0)
+                    {
+                        int relate = NetUtils.RelativeSequenceNumber(_localSeqence, _localWindowStart);
+                        if (relate >= _windowSize)
+                            break;
+
+                        var netPacket = OutgoingQueue.Dequeue();
+                        netPacket.Sequence = (ushort) _localSeqence;
+                        netPacket.ChannelId = _id;
+                        _pendingPackets[_localSeqence % _windowSize].Init(netPacket);
+                        _localSeqence = (_localSeqence + 1) % NetConstants.MaxSequence;
+                    }
+                }
+                //send
+                for (int pendingSeq = _localWindowStart; pendingSeq != _localSeqence; pendingSeq = (pendingSeq + 1) % NetConstants.MaxSequence)
+                    _pendingPackets[pendingSeq % _windowSize].TrySend(currentTime, Peer);
+            }
+        }
+
+        //Process incoming packet
+        public override bool ProcessPacket(NetPacket packet)
+        {
+            if (packet.Property == PacketProperty.Ack)
+            {
+                ProcessAck(packet);
+                return false;
+            }
+            int seq = packet.Sequence;
+            if (seq >= NetConstants.MaxSequence)
+            {
+                NetDebug.Write("[RR]Bad sequence");
+                return false;
+            }
+
+            int relate = NetUtils.RelativeSequenceNumber(seq, _remoteWindowStart);
+            int relateSeq = NetUtils.RelativeSequenceNumber(seq, _remoteSequence);
+
+            if (relateSeq > _windowSize)
+            {
+                NetDebug.Write("[RR]Bad sequence");
+                return false;
+            }
+
+            //Drop bad packets
+            if (relate < 0)
+            {
+                //Too old packet doesn't ack
+                NetDebug.Write("[RR]ReliableInOrder too old");
+                return false;
+            }
+            if (relate >= _windowSize * 2)
+            {
+                //Some very new packet
+                NetDebug.Write("[RR]ReliableInOrder too new");
+                return false;
+            }
+
+            //If very new - move window
+            int ackIdx;
+            int ackByte;
+            int ackBit;
+            lock (_outgoingAcks)
+            {
+                if (relate >= _windowSize)
+                {
+                    //New window position
+                    int newWindowStart = (_remoteWindowStart + relate - _windowSize + 1) % NetConstants.MaxSequence;
+                    _outgoingAcks.Sequence = (ushort) newWindowStart;
+
+                    //Clean old data
+                    while (_remoteWindowStart != newWindowStart)
+                    {
+                        ackIdx = _remoteWindowStart % _windowSize;
+                        ackByte = NetConstants.ChanneledHeaderSize + ackIdx / BitsInByte;
+                        ackBit = ackIdx % BitsInByte;
+                        _outgoingAcks.RawData[ackByte] &= (byte) ~(1 << ackBit);
+                        _remoteWindowStart = (_remoteWindowStart + 1) % NetConstants.MaxSequence;
+                    }
+                }
+
+                //Final stage - process valid packet
+                //trigger acks send
+                _mustSendAcks = true;
+                ackIdx = seq % _windowSize;
+                ackByte = NetConstants.ChanneledHeaderSize + ackIdx / BitsInByte;
+                ackBit = ackIdx % BitsInByte;
+                if ((_outgoingAcks.RawData[ackByte] & (1 << ackBit)) != 0)
+                {
+                    NetDebug.Write("[RR]ReliableInOrder duplicate");
+                    return false;
+                }
+
+                //save ack
+                _outgoingAcks.RawData[ackByte] |= (byte) (1 << ackBit);
+            }
+
+            //detailed check
+            if (seq == _remoteSequence)
+            {
+                NetDebug.Write("[RR]ReliableInOrder packet succes");
+                Peer.AddReliablePacket(_deliveryMethod, packet);
+                _remoteSequence = (_remoteSequence + 1) % NetConstants.MaxSequence;
+
+                if (_ordered)
+                {
+                    NetPacket p;
+                    while ((p = _receivedPackets[_remoteSequence % _windowSize]) != null)
+                    {
+                        //process holden packet
+                        _receivedPackets[_remoteSequence % _windowSize] = null;
+                        Peer.AddReliablePacket(_deliveryMethod, p);
+                        _remoteSequence = (_remoteSequence + 1) % NetConstants.MaxSequence;
+                    }
+                }
+                else
+                {
+                    while (_earlyReceived[_remoteSequence % _windowSize])
+                    {
+                        //process early packet
+                        _earlyReceived[_remoteSequence % _windowSize] = false;
+                        _remoteSequence = (_remoteSequence + 1) % NetConstants.MaxSequence;
+                    }
+                }
+                return true;
+            }
+
+            //holden packet
+            if (_ordered)
+            {
+                _receivedPackets[ackIdx] = packet;
+            }
+            else
+            {
+                _earlyReceived[ackIdx] = true;
+                Peer.AddReliablePacket(_deliveryMethod, packet);
+            }
+            return true;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/ReliableChannel.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/SequencedChannel.cs

+using System;
+
+namespace LiteNetLib
+{
+    internal sealed class SequencedChannel : BaseChannel
+    {
+        private int _localSequence;
+        private ushort _remoteSequence;
+        private readonly bool _reliable;
+        private NetPacket _lastPacket;
+        private readonly NetPacket _ackPacket;
+        private bool _mustSendAck;
+        private readonly byte _id;
+        private long _lastPacketSendTime;
+
+        public SequencedChannel(NetPeer peer, bool reliable, byte id) : base(peer)
+        {
+            _id = id;
+            _reliable = reliable;
+            if (_reliable)
+                _ackPacket = new NetPacket(PacketProperty.Ack, 0) {ChannelId = id};
+        }
+
+        public override void SendNextPackets()
+        {
+            if (_reliable && OutgoingQueue.Count == 0)
+            {
+                long currentTime = DateTime.UtcNow.Ticks;
+                long packetHoldTime = currentTime - _lastPacketSendTime;
+                if (packetHoldTime < Peer.ResendDelay * TimeSpan.TicksPerMillisecond)
+                    return;
+                var packet = _lastPacket;
+                if (packet != null)
+                {
+                    _lastPacketSendTime = currentTime;
+                    Peer.SendUserData(packet);
+                }
+            }
+            else
+            {
+                lock (OutgoingQueue)
+                {
+                    while (OutgoingQueue.Count > 0)
+                    {
+                        NetPacket packet = OutgoingQueue.Dequeue();
+                        _localSequence = (_localSequence + 1) % NetConstants.MaxSequence;
+                        packet.Sequence = (ushort)_localSequence;
+                        packet.ChannelId = _id;
+                        Peer.SendUserData(packet);
+
+                        if (_reliable && OutgoingQueue.Count == 0)
+                        {
+                            _lastPacketSendTime = DateTime.UtcNow.Ticks;
+                            _lastPacket = packet;
+                        }
+                        else
+                        {
+                            Peer.NetManager.NetPacketPool.Recycle(packet);
+                        }
+                    }
+                }
+            }
+
+            if (_reliable && _mustSendAck)
+            {
+                _mustSendAck = false;
+                _ackPacket.Sequence = _remoteSequence;
+                Peer.SendUserData(_ackPacket);
+            }
+        }
+
+        public override bool ProcessPacket(NetPacket packet)
+        {
+            if (packet.IsFragmented)
+                return false;
+            if (packet.Property == PacketProperty.Ack)
+            {
+                if (_reliable && _lastPacket != null && packet.Sequence == _lastPacket.Sequence)
+                    _lastPacket = null;
+                return false;
+            }
+            int relative = NetUtils.RelativeSequenceNumber(packet.Sequence, _remoteSequence);
+            bool packetProcessed = false;
+            if (packet.Sequence < NetConstants.MaxSequence && relative > 0)
+            {
+                Peer.Statistics.PacketLoss += (ulong)(relative - 1);
+                _remoteSequence = packet.Sequence;
+                Peer.NetManager.CreateReceiveEvent(
+                    packet, 
+                    _reliable ? DeliveryMethod.ReliableSequenced : DeliveryMethod.Sequenced, 
+                    NetConstants.ChanneledHeaderSize,
+                    Peer);
+                packetProcessed = true;
+            }
+            _mustSendAck = true;
+            return packetProcessed;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/SequencedChannel.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/CRC32C.cs

+#if NETCOREAPP3_0
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Intrinsics.X86;
+#endif
+
+namespace LiteNetLib.Utils
+{
+    //Implementation from Crc32.NET
+    public static class CRC32C
+    {
+        public const int ChecksumSize = 4;
+        private const uint Poly = 0x82F63B78u;
+        private static readonly uint[] Table;
+
+        static CRC32C()
+        {
+#if NETCOREAPP3_0
+            if(Sse42.IsSupported)
+                return;
+#endif
+            Table = new uint[16 * 256];
+            for (uint i = 0; i < 256; i++)
+            {
+                uint res = i;
+                for (int t = 0; t < 16; t++)
+                {
+                    for (int k = 0; k < 8; k++) 
+                        res = (res & 1) == 1 ? Poly ^ (res >> 1) : (res >> 1);
+                    Table[t * 256 + i] = res;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Compute CRC32C for data
+        /// </summary>
+        /// <param name="input">input data</param>
+        /// <param name="offset">offset</param>
+        /// <param name="length">length</param>
+        /// <returns>CRC32C checksum</returns>
+        public static uint Compute(byte[] input, int offset, int length)
+        {
+            uint crcLocal = uint.MaxValue;
+#if NETCOREAPP3_0
+            if (Sse42.IsSupported)
+            {
+                var data = new ReadOnlySpan<byte>(input, offset, length);
+                int processed = 0;
+                if (Sse42.X64.IsSupported && data.Length > sizeof(ulong))
+                {
+                    processed = data.Length / sizeof(ulong) * sizeof(ulong);
+                    var ulongs = MemoryMarshal.Cast<byte, ulong>(data.Slice(0, processed));
+                    ulong crclong = crcLocal;
+                    for (int i = 0; i < ulongs.Length; i++)
+                    {
+                        crclong = Sse42.X64.Crc32(crclong, ulongs[i]);
+                    }
+
+                    crcLocal = (uint)crclong;
+                }
+                else if (data.Length > sizeof(uint))
+                {
+                    processed = data.Length / sizeof(uint) * sizeof(uint);
+                    var uints = MemoryMarshal.Cast<byte, uint>(data.Slice(0, processed));
+                    for (int i = 0; i < uints.Length; i++)
+                    {
+                        crcLocal = Sse42.Crc32(crcLocal, uints[i]);
+                    }
+                }
+
+                for (int i = processed; i < data.Length; i++)
+                {
+                    crcLocal = Sse42.Crc32(crcLocal, data[i]);
+                }
+
+                return crcLocal ^ uint.MaxValue;
+            }
+#endif
+            while (length >= 16)
+            {
+                var a = Table[(3 * 256) + input[offset + 12]]
+                        ^ Table[(2 * 256) + input[offset + 13]]
+                        ^ Table[(1 * 256) + input[offset + 14]]
+                        ^ Table[(0 * 256) + input[offset + 15]];
+
+                var b = Table[(7 * 256) + input[offset + 8]]
+                        ^ Table[(6 * 256) + input[offset + 9]]
+                        ^ Table[(5 * 256) + input[offset + 10]]
+                        ^ Table[(4 * 256) + input[offset + 11]];
+
+                var c = Table[(11 * 256) + input[offset + 4]]
+                        ^ Table[(10 * 256) + input[offset + 5]]
+                        ^ Table[(9 * 256) + input[offset + 6]]
+                        ^ Table[(8 * 256) + input[offset + 7]];
+
+                var d = Table[(15 * 256) + ((byte)crcLocal ^ input[offset])]
+                        ^ Table[(14 * 256) + ((byte)(crcLocal >> 8) ^ input[offset + 1])]
+                        ^ Table[(13 * 256) + ((byte)(crcLocal >> 16) ^ input[offset + 2])]
+                        ^ Table[(12 * 256) + ((crcLocal >> 24) ^ input[offset + 3])];
+
+                crcLocal = d ^ c ^ b ^ a;
+                offset += 16;
+                length -= 16;
+            }
+            while (--length >= 0)
+                crcLocal = Table[(byte)(crcLocal ^ input[offset++])] ^ crcLocal >> 8;
+            return crcLocal ^ uint.MaxValue;
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/CRC32C.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/FastBitConverter.cs

+using System.Runtime.InteropServices;
+
+namespace LiteNetLib.Utils
+{
+    public static class FastBitConverter
+    {
+        [StructLayout(LayoutKind.Explicit)]
+        private struct ConverterHelperDouble
+        {
+            [FieldOffset(0)]
+            public ulong Along;
+
+            [FieldOffset(0)]
+            public double Adouble;
+        }
+
+        [StructLayout(LayoutKind.Explicit)]
+        private struct ConverterHelperFloat
+        {
+            [FieldOffset(0)]
+            public int Aint;
+
+            [FieldOffset(0)]
+            public float Afloat;
+        }
+
+        private static void WriteLittleEndian(byte[] buffer, int offset, ulong data)
+        {
+#if BIGENDIAN
+            buffer[offset + 7] = (byte)(data);
+            buffer[offset + 6] = (byte)(data >> 8);
+            buffer[offset + 5] = (byte)(data >> 16);
+            buffer[offset + 4] = (byte)(data >> 24);
+            buffer[offset + 3] = (byte)(data >> 32);
+            buffer[offset + 2] = (byte)(data >> 40);
+            buffer[offset + 1] = (byte)(data >> 48);
+            buffer[offset    ] = (byte)(data >> 56);
+#else
+            buffer[offset] = (byte)(data);
+            buffer[offset + 1] = (byte)(data >> 8);
+            buffer[offset + 2] = (byte)(data >> 16);
+            buffer[offset + 3] = (byte)(data >> 24);
+            buffer[offset + 4] = (byte)(data >> 32);
+            buffer[offset + 5] = (byte)(data >> 40);
+            buffer[offset + 6] = (byte)(data >> 48);
+            buffer[offset + 7] = (byte)(data >> 56);
+#endif
+        }
+
+        private static void WriteLittleEndian(byte[] buffer, int offset, int data)
+        {
+#if BIGENDIAN
+            buffer[offset + 3] = (byte)(data);
+            buffer[offset + 2] = (byte)(data >> 8);
+            buffer[offset + 1] = (byte)(data >> 16);
+            buffer[offset    ] = (byte)(data >> 24);
+#else
+            buffer[offset] = (byte)(data);
+            buffer[offset + 1] = (byte)(data >> 8);
+            buffer[offset + 2] = (byte)(data >> 16);
+            buffer[offset + 3] = (byte)(data >> 24);
+#endif
+        }
+
+        public static void WriteLittleEndian(byte[] buffer, int offset, short data)
+        {
+#if BIGENDIAN
+            buffer[offset + 1] = (byte)(data);
+            buffer[offset    ] = (byte)(data >> 8);
+#else
+            buffer[offset] = (byte)(data);
+            buffer[offset + 1] = (byte)(data >> 8);
+#endif
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, double value)
+        {
+            ConverterHelperDouble ch = new ConverterHelperDouble { Adouble = value };
+            WriteLittleEndian(bytes, startIndex, ch.Along);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, float value)
+        {
+            ConverterHelperFloat ch = new ConverterHelperFloat { Afloat = value };
+            WriteLittleEndian(bytes, startIndex, ch.Aint);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, short value)
+        {
+            WriteLittleEndian(bytes, startIndex, value);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, ushort value)
+        {
+            WriteLittleEndian(bytes, startIndex, (short)value);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, int value)
+        {
+            WriteLittleEndian(bytes, startIndex, value);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, uint value)
+        {
+            WriteLittleEndian(bytes, startIndex, (int)value);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, long value)
+        {
+            WriteLittleEndian(bytes, startIndex, (ulong)value);
+        }
+
+        public static void GetBytes(byte[] bytes, int startIndex, ulong value)
+        {
+            WriteLittleEndian(bytes, startIndex, value);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/FastBitConverter.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/INetSerializable.cs

+namespace LiteNetLib.Utils
+{
+    public interface INetSerializable
+    {
+        void Serialize(NetDataWriter writer);
+        void Deserialize(NetDataReader reader);
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/INetSerializable.cs.meta

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Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetDataReader.cs

+using System;
+using System.Net;
+using System.Text;
+
+namespace LiteNetLib.Utils
+{
+    public class NetDataReader
+    {
+        protected byte[] _data;
+        protected int _position;
+        protected int _dataSize;
+        private int _offset;
+
+        public byte[] RawData
+        {
+            get { return _data; }
+        }
+
+        public int RawDataSize
+        {
+            get { return _dataSize; }
+        }
+
+        public int UserDataOffset
+        {
+            get { return _offset; }
+        }
+
+        public int UserDataSize
+        {
+            get { return _dataSize - _offset; }
+        }
+
+        public bool IsNull
+        {
+            get { return _data == null; }
+        }
+
+        public int Position
+        {
+            get { return _position; }
+        }
+
+        public bool EndOfData
+        {
+            get { return _position == _dataSize; }
+        }
+
+        public int AvailableBytes
+        {
+            get { return _dataSize - _position; }
+        }
+        
+        public void SkipBytes(int count) 
+        {
+            _position += count;
+        }
+
+        public void SetSource(NetDataWriter dataWriter)
+        {
+            _data = dataWriter.Data;
+            _position = 0;
+            _offset = 0;
+            _dataSize = dataWriter.Length;
+        }
+
+        public void SetSource(byte[] source)
+        {
+            _data = source;
+            _position = 0;
+            _offset = 0;
+            _dataSize = source.Length;
+        }
+
+        public void SetSource(byte[] source, int offset)
+        {
+            _data = source;
+            _position = offset;
+            _offset = offset;
+            _dataSize = source.Length;
+        }
+
+        public void SetSource(byte[] source, int offset, int maxSize)
+        {
+            _data = source;
+            _position = offset;
+            _offset = offset;
+            _dataSize = maxSize;
+        }
+
+        public NetDataReader()
+        {
+
+        }
+
+        public NetDataReader(NetDataWriter writer)
+        {
+            SetSource(writer);
+        }
+
+        public NetDataReader(byte[] source)
+        {
+            SetSource(source);
+        }
+
+        public NetDataReader(byte[] source, int offset)
+        {
+            SetSource(source, offset);
+        }
+
+        public NetDataReader(byte[] source, int offset, int maxSize)
+        {
+            SetSource(source, offset, maxSize);
+        }
+
+        #region GetMethods
+        public IPEndPoint GetNetEndPoint()
+        {
+            string host = GetString(1000);
+            int port = GetInt();
+            return NetUtils.MakeEndPoint(host, port);
+        }
+
+        public byte GetByte()
+        {
+            byte res = _data[_position];
+            _position += 1;
+            return res;
+        }
+
+        public sbyte GetSByte()
+        {
+            var b = (sbyte)_data[_position];
+            _position++;
+            return b;
+        }
+
+        public bool[] GetBoolArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new bool[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size);
+            _position += size;
+            return arr;
+        }
+
+        public ushort[] GetUShortArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new ushort[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 2);
+            _position += size * 2;
+            return arr;
+        }
+
+        public short[] GetShortArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new short[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 2);
+            _position += size * 2;
+            return arr;
+        }
+
+        public long[] GetLongArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new long[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 8);
+            _position += size * 8;
+            return arr;
+        }
+
+        public ulong[] GetULongArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new ulong[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 8);
+            _position += size * 8;
+            return arr;
+        }
+
+        public int[] GetIntArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new int[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 4);
+            _position += size * 4;
+            return arr;
+        }
+
+        public uint[] GetUIntArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new uint[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 4);
+            _position += size * 4;
+            return arr;
+        }
+
+        public float[] GetFloatArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new float[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 4);
+            _position += size * 4;
+            return arr;
+        }
+
+        public double[] GetDoubleArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new double[size];
+            Buffer.BlockCopy(_data, _position, arr, 0, size * 8);
+            _position += size * 8;
+            return arr;
+        }
+
+        public string[] GetStringArray()
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new string[size];
+            for (int i = 0; i < size; i++)
+            {
+                arr[i] = GetString();
+            }
+            return arr;
+        }
+
+        public string[] GetStringArray(int maxStringLength)
+        {
+            ushort size = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            var arr = new string[size];
+            for (int i = 0; i < size; i++)
+            {
+                arr[i] = GetString(maxStringLength);
+            }
+            return arr;
+        }
+
+        public bool GetBool()
+        {
+            bool res = _data[_position] > 0;
+            _position += 1;
+            return res;
+        }
+
+        public char GetChar()
+        {
+            char result = BitConverter.ToChar(_data, _position);
+            _position += 2;
+            return result;
+        }
+
+        public ushort GetUShort()
+        {
+            ushort result = BitConverter.ToUInt16(_data, _position);
+            _position += 2;
+            return result;
+        }
+
+        public short GetShort()
+        {
+            short result = BitConverter.ToInt16(_data, _position);
+            _position += 2;
+            return result;
+        }
+
+        public long GetLong()
+        {
+            long result = BitConverter.ToInt64(_data, _position);
+            _position += 8;
+            return result;
+        }
+
+        public ulong GetULong()
+        {
+            ulong result = BitConverter.ToUInt64(_data, _position);
+            _position += 8;
+            return result;
+        }
+
+        public int GetInt()
+        {
+            int result = BitConverter.ToInt32(_data, _position);
+            _position += 4;
+            return result;
+        }
+
+        public uint GetUInt()
+        {
+            uint result = BitConverter.ToUInt32(_data, _position);
+            _position += 4;
+            return result;
+        }
+
+        public float GetFloat()
+        {
+            float result = BitConverter.ToSingle(_data, _position);
+            _position += 4;
+            return result;
+        }
+
+        public double GetDouble()
+        {
+            double result = BitConverter.ToDouble(_data, _position);
+            _position += 8;
+            return result;
+        }
+
+        public string GetString(int maxLength)
+        {
+            int bytesCount = GetInt();
+            if (bytesCount <= 0 || bytesCount > maxLength*2)
+            {
+                return string.Empty;
+            }
+
+            int charCount = Encoding.UTF8.GetCharCount(_data, _position, bytesCount);
+            if (charCount > maxLength)
+            {
+                return string.Empty;
+            }
+
+            string result = Encoding.UTF8.GetString(_data, _position, bytesCount);
+            _position += bytesCount;
+            return result;
+        }
+
+        public string GetString()
+        {
+            int bytesCount = GetInt();
+            if (bytesCount <= 0)
+            {
+                return string.Empty;
+            }
+
+            string result = Encoding.UTF8.GetString(_data, _position, bytesCount);
+            _position += bytesCount;
+            return result;
+        }
+
+        public ArraySegment<byte> GetRemainingBytesSegment()
+        {
+            ArraySegment<byte> segment = new ArraySegment<byte>(_data, _position, AvailableBytes);
+            _position = _data.Length;
+            return segment;
+        }
+
+        public T Get<T>() where T : INetSerializable, new()
+        {
+            var obj = new T();
+            obj.Deserialize(this);
+            return obj;
+        }
+
+        public byte[] GetRemainingBytes()
+        {
+            byte[] outgoingData = new byte[AvailableBytes];
+            Buffer.BlockCopy(_data, _position, outgoingData, 0, AvailableBytes);
+            _position = _data.Length;
+            return outgoingData;
+        }
+
+        public void GetBytes(byte[] destination, int start, int count)
+        {
+            Buffer.BlockCopy(_data, _position, destination, start, count);
+            _position += count;
+        }
+
+        public void GetBytes(byte[] destination, int count)
+        {
+            Buffer.BlockCopy(_data, _position, destination, 0, count);
+            _position += count;
+        }
+        
+        public sbyte[] GetSBytesWithLength()
+        {
+            int length = GetInt();
+            sbyte[] outgoingData = new sbyte[length];
+            Buffer.BlockCopy(_data, _position, outgoingData, 0, length);
+            _position += length;
+            return outgoingData;
+        }
+        
+        public byte[] GetBytesWithLength()
+        {
+            int length = GetInt();
+            byte[] outgoingData = new byte[length];
+            Buffer.BlockCopy(_data, _position, outgoingData, 0, length);
+            _position += length;
+            return outgoingData;
+        }
+        #endregion
+
+        #region PeekMethods
+
+        public byte PeekByte()
+        {
+            return _data[_position];
+        }
+
+        public sbyte PeekSByte()
+        {
+            return (sbyte)_data[_position];
+        }
+
+        public bool PeekBool()
+        {
+            return _data[_position] > 0;
+        }
+
+        public char PeekChar()
+        {
+            return BitConverter.ToChar(_data, _position);
+        }
+
+        public ushort PeekUShort()
+        {
+            return BitConverter.ToUInt16(_data, _position);
+        }
+
+        public short PeekShort()
+        {
+            return BitConverter.ToInt16(_data, _position);
+        }
+
+        public long PeekLong()
+        {
+            return BitConverter.ToInt64(_data, _position);
+        }
+
+        public ulong PeekULong()
+        {
+            return BitConverter.ToUInt64(_data, _position);
+        }
+
+        public int PeekInt()
+        {
+            return BitConverter.ToInt32(_data, _position);
+        }
+
+        public uint PeekUInt()
+        {
+            return BitConverter.ToUInt32(_data, _position);
+        }
+
+        public float PeekFloat()
+        {
+            return BitConverter.ToSingle(_data, _position);
+        }
+
+        public double PeekDouble()
+        {
+            return BitConverter.ToDouble(_data, _position);
+        }
+
+        public string PeekString(int maxLength)
+        {
+            int bytesCount = BitConverter.ToInt32(_data, _position);
+            if (bytesCount <= 0 || bytesCount > maxLength * 2)
+            {
+                return string.Empty;
+            }
+
+            int charCount = Encoding.UTF8.GetCharCount(_data, _position + 4, bytesCount);
+            if (charCount > maxLength)
+            {
+                return string.Empty;
+            }
+
+            string result = Encoding.UTF8.GetString(_data, _position + 4, bytesCount);
+            return result;
+        }
+
+        public string PeekString()
+        {
+            int bytesCount = BitConverter.ToInt32(_data, _position);
+            if (bytesCount <= 0)
+            {
+                return string.Empty;
+            }
+
+            string result = Encoding.UTF8.GetString(_data, _position + 4, bytesCount);
+            return result;
+        }
+        #endregion
+
+        #region TryGetMethods
+        public bool TryGetByte(out byte result)
+        {
+            if (AvailableBytes >= 1)
+            {
+                result = GetByte();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetSByte(out sbyte result)
+        {
+            if (AvailableBytes >= 1)
+            {
+                result = GetSByte();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetBool(out bool result)
+        {
+            if (AvailableBytes >= 1)
+            {
+                result = GetBool();
+                return true;
+            }
+            result = false;
+            return false;
+        }
+
+        public bool TryGetChar(out char result)
+        {
+            if (AvailableBytes >= 2)
+            {
+                result = GetChar();
+                return true;
+            }
+            result = '\0';
+            return false;
+        }
+
+        public bool TryGetShort(out short result)
+        {
+            if (AvailableBytes >= 2)
+            {
+                result = GetShort();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetUShort(out ushort result)
+        {
+            if (AvailableBytes >= 2)
+            {
+                result = GetUShort();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetInt(out int result)
+        {
+            if (AvailableBytes >= 4)
+            {
+                result = GetInt();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetUInt(out uint result)
+        {
+            if (AvailableBytes >= 4)
+            {
+                result = GetUInt();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetLong(out long result)
+        {
+            if (AvailableBytes >= 8)
+            {
+                result = GetLong();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetULong(out ulong result)
+        {
+            if (AvailableBytes >= 8)
+            {
+                result = GetULong();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetFloat(out float result)
+        {
+            if (AvailableBytes >= 4)
+            {
+                result = GetFloat();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetDouble(out double result)
+        {
+            if (AvailableBytes >= 8)
+            {
+                result = GetDouble();
+                return true;
+            }
+            result = 0;
+            return false;
+        }
+
+        public bool TryGetString(out string result)
+        {
+            if (AvailableBytes >= 4)
+            {
+                var bytesCount = PeekInt();
+                if (AvailableBytes >= bytesCount + 4)
+                {
+                    result = GetString();
+                    return true;
+                }
+            }
+            result = null;
+            return false;
+        }
+
+        public bool TryGetStringArray(out string[] result)
+        {
+            ushort size;
+            if (!TryGetUShort(out size))
+            {
+                result = null;
+                return false;
+            }
+
+            result = new string[size];
+            for (int i = 0; i < size; i++)
+            {
+                if (!TryGetString(out result[i]))
+                {
+                    result = null;
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        public bool TryGetBytesWithLength(out byte[] result)
+        {
+            if (AvailableBytes >= 4)
+            {
+                var length = PeekInt();
+                if (length >= 0 && AvailableBytes >= length + 4)
+                {
+                    result = GetBytesWithLength();
+                    return true;
+                }
+            }
+            result = null;
+            return false;
+        }
+        #endregion
+
+        public void Clear()
+        {
+            _position = 0;
+            _dataSize = 0;
+            _data = null;
+        }
+    }
+}
+

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetDataReader.cs.meta

+fileFormatVersion: 2
+guid: d531661040bfd9942b93adcf122d67a2
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetDataWriter.cs

+using System;
+using System.Net;
+using System.Text;
+
+namespace LiteNetLib.Utils
+{
+    public class NetDataWriter
+    {
+        protected byte[] _data;
+        protected int _position;
+        private const int InitialSize = 64;
+        private readonly bool _autoResize;
+
+        public int Capacity
+        {
+            get { return _data.Length; }
+        }
+
+        public NetDataWriter() : this(true, InitialSize)
+        {
+        }
+
+        public NetDataWriter(bool autoResize) : this(autoResize, InitialSize)
+        {
+        }
+
+        public NetDataWriter(bool autoResize, int initialSize)
+        {
+            _data = new byte[initialSize];
+            _autoResize = autoResize;
+        }
+
+        /// <summary>
+        /// Creates NetDataWriter from existing ByteArray
+        /// </summary>
+        /// <param name="bytes">Source byte array</param>
+        /// <param name="copy">Copy array to new location or use existing</param>
+        public static NetDataWriter FromBytes(byte[] bytes, bool copy)
+        {
+            if (copy)
+            {
+                var netDataWriter = new NetDataWriter(true, bytes.Length);
+                netDataWriter.Put(bytes);
+                return netDataWriter;
+            }
+            return new NetDataWriter(true, 0) {_data = bytes};
+        }
+
+        /// <summary>
+        /// Creates NetDataWriter from existing ByteArray (always copied data)
+        /// </summary>
+        /// <param name="bytes">Source byte array</param>
+        /// <param name="offset">Offset of array</param>
+        /// <param name="length">Length of array</param>
+        public static NetDataWriter FromBytes(byte[] bytes, int offset, int length)
+        {
+            var netDataWriter = new NetDataWriter(true, bytes.Length);
+            netDataWriter.Put(bytes, offset, length);
+            return netDataWriter;
+        }
+
+        public static NetDataWriter FromString(string value)
+        {
+            var netDataWriter = new NetDataWriter();
+            netDataWriter.Put(value);
+            return netDataWriter;
+        }
+
+        public void ResizeIfNeed(int newSize)
+        {
+            int len = _data.Length;
+            if (len < newSize)
+            {
+                while (len < newSize)
+                    len *= 2;
+                Array.Resize(ref _data, len);
+            }
+        }
+
+        public void Reset(int size)
+        {
+            ResizeIfNeed(size);
+            _position = 0;
+        }
+
+        public void Reset()
+        {
+            _position = 0;
+        }
+
+        public byte[] CopyData()
+        {
+            byte[] resultData = new byte[_position];
+            Buffer.BlockCopy(_data, 0, resultData, 0, _position);
+            return resultData;
+        }
+
+        public byte[] Data
+        {
+            get { return _data; }
+        }
+
+        public int Length
+        {
+            get { return _position; }
+        }
+
+        public void Put(float value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 4);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 4;
+        }
+
+        public void Put(double value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 8);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 8;
+        }
+
+        public void Put(long value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 8);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 8;
+        }
+
+        public void Put(ulong value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 8);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 8;
+        }
+
+        public void Put(int value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 4);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 4;
+        }
+
+        public void Put(uint value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 4);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 4;
+        }
+
+        public void Put(char value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 2);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 2;
+        }
+
+        public void Put(ushort value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 2);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 2;
+        }
+
+        public void Put(short value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 2);
+            FastBitConverter.GetBytes(_data, _position, value);
+            _position += 2;
+        }
+
+        public void Put(sbyte value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 1);
+            _data[_position] = (byte)value;
+            _position++;
+        }
+
+        public void Put(byte value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 1);
+            _data[_position] = value;
+            _position++;
+        }
+
+        public void Put(byte[] data, int offset, int length)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + length);
+            Buffer.BlockCopy(data, offset, _data, _position, length);
+            _position += length;
+        }
+
+        public void Put(byte[] data)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + data.Length);
+            Buffer.BlockCopy(data, 0, _data, _position, data.Length);
+            _position += data.Length;
+        }
+        
+        public void PutSBytesWithLength(sbyte[] data, int offset, int length)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + length + 4);
+            FastBitConverter.GetBytes(_data, _position, length);
+            Buffer.BlockCopy(data, offset, _data, _position + 4, length);
+            _position += length + 4;
+        }
+        
+        public void PutSBytesWithLength(sbyte[] data)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + data.Length + 4);
+            FastBitConverter.GetBytes(_data, _position, data.Length);
+            Buffer.BlockCopy(data, 0, _data, _position + 4, data.Length);
+            _position += data.Length + 4;
+        }
+
+        public void PutBytesWithLength(byte[] data, int offset, int length)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + length + 4);
+            FastBitConverter.GetBytes(_data, _position, length);
+            Buffer.BlockCopy(data, offset, _data, _position + 4, length);
+            _position += length + 4;
+        }
+
+        public void PutBytesWithLength(byte[] data)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + data.Length + 4);
+            FastBitConverter.GetBytes(_data, _position, data.Length);
+            Buffer.BlockCopy(data, 0, _data, _position + 4, data.Length);
+            _position += data.Length + 4;
+        }
+
+        public void Put(bool value)
+        {
+            if (_autoResize)
+                ResizeIfNeed(_position + 1);
+            _data[_position] = (byte)(value ? 1 : 0);
+            _position++;
+        }
+
+        private void PutArray(Array arr, int sz)
+        {
+            ushort length = arr == null ? (ushort) 0 : (ushort)arr.Length;
+            sz *= length;
+            if (_autoResize)
+                ResizeIfNeed(_position + sz + 2);
+            FastBitConverter.GetBytes(_data, _position, length);
+            if (arr != null)
+                Buffer.BlockCopy(arr, 0, _data, _position + 2, sz);
+            _position += sz + 2;
+        }
+
+        public void PutArray(float[] value)
+        {
+            PutArray(value, 4);
+        }
+
+        public void PutArray(double[] value)
+        {
+            PutArray(value, 8);
+        }
+
+        public void PutArray(long[] value)
+        {
+            PutArray(value, 8);
+        }
+
+        public void PutArray(ulong[] value)
+        {
+            PutArray(value, 8);
+        }
+
+        public void PutArray(int[] value)
+        {
+            PutArray(value, 4);
+        }
+
+        public void PutArray(uint[] value)
+        {
+            PutArray(value, 4);
+        }
+
+        public void PutArray(ushort[] value)
+        {
+            PutArray(value, 2);
+        }
+
+        public void PutArray(short[] value)
+        {
+            PutArray(value, 2);
+        }
+
+        public void PutArray(bool[] value)
+        {
+            PutArray(value, 1);
+        }
+
+        public void PutArray(string[] value)
+        {
+            ushort len = value == null ? (ushort)0 : (ushort)value.Length;
+            Put(len);
+            for (int i = 0; i < len; i++)
+                Put(value[i]);
+        }
+
+        public void PutArray(string[] value, int maxLength)
+        {
+            ushort len = value == null ? (ushort)0 : (ushort)value.Length;
+            Put(len);
+            for (int i = 0; i < len; i++)
+                Put(value[i], maxLength);
+        }
+
+        public void Put(IPEndPoint endPoint)
+        {
+            Put(endPoint.Address.ToString());
+            Put(endPoint.Port);
+        }
+
+        public void Put(string value)
+        {
+            if (string.IsNullOrEmpty(value))
+            {
+                Put(0);
+                return;
+            }
+
+            //put bytes count
+            int bytesCount = Encoding.UTF8.GetByteCount(value);
+            if (_autoResize)
+                ResizeIfNeed(_position + bytesCount + 4);
+            Put(bytesCount);
+
+            //put string
+            Encoding.UTF8.GetBytes(value, 0, value.Length, _data, _position);
+            _position += bytesCount;
+        }
+
+        public void Put(string value, int maxLength)
+        {
+            if (string.IsNullOrEmpty(value))
+            {
+                Put(0);
+                return;
+            }
+
+            int length = value.Length > maxLength ? maxLength : value.Length;
+            //calculate max count
+            int bytesCount = Encoding.UTF8.GetByteCount(value);
+            if (_autoResize)
+                ResizeIfNeed(_position + bytesCount + 4);
+
+            //put bytes count
+            Put(bytesCount);
+
+            //put string
+            Encoding.UTF8.GetBytes(value, 0, length, _data, _position);
+
+            _position += bytesCount;
+        }
+
+        public void Put<T>(T obj) where T : INetSerializable
+        {
+            obj.Serialize(this);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetDataWriter.cs.meta

+fileFormatVersion: 2
+guid: 69c77411d55e98941802ca35835dd3da
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetPacketProcessor.cs

+using System;
+using System.Collections.Generic;
+
+namespace LiteNetLib.Utils
+{
+    public class NetPacketProcessor
+    {
+        private static class HashCache<T>
+        {
+            public static bool Initialized;
+            public static ulong Id;
+        }
+
+        protected delegate void SubscribeDelegate(NetDataReader reader, object userData);
+        private readonly NetSerializer _netSerializer;
+        private readonly Dictionary<ulong, SubscribeDelegate> _callbacks = new Dictionary<ulong, SubscribeDelegate>();
+        private readonly NetDataWriter _netDataWriter = new NetDataWriter();
+
+        public NetPacketProcessor()
+        {
+            _netSerializer = new NetSerializer();
+        }
+
+        public NetPacketProcessor(int maxStringLength)
+        {
+            _netSerializer = new NetSerializer(maxStringLength);
+        }
+
+        //FNV-1 64 bit hash
+        protected virtual ulong GetHash<T>()
+        {
+            if(HashCache<T>.Initialized)
+                return HashCache<T>.Id;
+
+            ulong hash = 14695981039346656037UL; //offset
+            string typeName = typeof(T).FullName;
+            for (var i = 0; i < typeName.Length; i++)
+            {
+                hash = hash ^ typeName[i];
+                hash *= 1099511628211UL; //prime
+            }
+            HashCache<T>.Initialized = true;
+            HashCache<T>.Id = hash;
+            return hash;
+        }
+
+        protected virtual SubscribeDelegate GetCallbackFromData(NetDataReader reader)
+        {
+            var hash = reader.GetULong();
+            SubscribeDelegate action;
+            if (!_callbacks.TryGetValue(hash, out action))
+            {
+                throw new ParseException("Undefined packet in NetDataReader");
+            }
+            return action;
+        }
+
+        protected virtual void WriteHash<T>(NetDataWriter writer)
+        {
+            writer.Put(GetHash<T>());
+        }
+
+        /// <summary>
+        /// Register nested property type
+        /// </summary>
+        /// <typeparam name="T">INetSerializable structure</typeparam>
+        public void RegisterNestedType<T>() where T : struct, INetSerializable
+        {
+            _netSerializer.RegisterNestedType<T>();
+        }
+
+        /// <summary>
+        /// Register nested property type
+        /// </summary>
+        /// <param name="writeDelegate"></param>
+        /// <param name="readDelegate"></param>
+        public void RegisterNestedType<T>(Action<NetDataWriter, T> writeDelegate, Func<NetDataReader, T> readDelegate)
+        {
+            _netSerializer.RegisterNestedType<T>(writeDelegate, readDelegate);
+        }
+
+        /// <summary>
+        /// Register nested property type
+        /// </summary>
+        /// <typeparam name="T">INetSerializable class</typeparam>
+        public void RegisterNestedType<T>(Func<T> constructor) where T : class, INetSerializable
+        {
+            _netSerializer.RegisterNestedType(constructor);
+        }
+
+        /// <summary>
+        /// Reads all available data from NetDataReader and calls OnReceive delegates
+        /// </summary>
+        /// <param name="reader">NetDataReader with packets data</param>
+        public void ReadAllPackets(NetDataReader reader)
+        {
+            while (reader.AvailableBytes > 0)
+                ReadPacket(reader);
+        }
+
+        /// <summary>
+        /// Reads all available data from NetDataReader and calls OnReceive delegates
+        /// </summary>
+        /// <param name="reader">NetDataReader with packets data</param>
+        /// <param name="userData">Argument that passed to OnReceivedEvent</param>
+        /// <exception cref="ParseException">Malformed packet</exception>
+        public void ReadAllPackets(NetDataReader reader, object userData)
+        {
+            while (reader.AvailableBytes > 0)
+                ReadPacket(reader, userData);
+        }
+
+        /// <summary>
+        /// Reads one packet from NetDataReader and calls OnReceive delegate
+        /// </summary>
+        /// <param name="reader">NetDataReader with packet</param>
+        /// <exception cref="ParseException">Malformed packet</exception>
+        public void ReadPacket(NetDataReader reader)
+        {
+            ReadPacket(reader, null);
+        }
+
+        public void Send<T>(NetPeer peer, T packet, DeliveryMethod options) where T : class, new()
+        {
+            _netDataWriter.Reset();
+            Write(_netDataWriter, packet);
+            peer.Send(_netDataWriter, options);
+        }
+
+        public void SendNetSerializable<T>(NetPeer peer, T packet, DeliveryMethod options) where T : INetSerializable
+        {
+            _netDataWriter.Reset();
+            WriteNetSerializable(_netDataWriter, packet);
+            peer.Send(_netDataWriter, options);
+        }
+
+        public void Send<T>(NetManager manager, T packet, DeliveryMethod options) where T : class, new()
+        {
+            _netDataWriter.Reset();
+            Write(_netDataWriter, packet);
+            manager.SendToAll(_netDataWriter, options);
+        }
+
+        public void SendNetSerializable<T>(NetManager manager, T packet, DeliveryMethod options) where T : INetSerializable
+        {
+            _netDataWriter.Reset();
+            WriteNetSerializable(_netDataWriter, packet);
+            manager.SendToAll(_netDataWriter, options);
+        }
+
+        public void Write<T>(NetDataWriter writer, T packet) where T : class, new()
+        {
+            WriteHash<T>(writer);
+            _netSerializer.Serialize(writer, packet);
+        }
+
+        public void WriteNetSerializable<T>(NetDataWriter writer, T packet) where T : INetSerializable
+        {
+            WriteHash<T>(writer);
+            packet.Serialize(writer);
+        }
+
+        public byte[] Write<T>(T packet) where T : class, new()
+        {
+            _netDataWriter.Reset();
+            WriteHash<T>(_netDataWriter);
+            _netSerializer.Serialize(_netDataWriter, packet);
+            return _netDataWriter.CopyData();
+        }
+
+        public byte[] WriteNetSerializable<T>(T packet) where T : INetSerializable
+        {
+            _netDataWriter.Reset();
+            WriteHash<T>(_netDataWriter);
+            packet.Serialize(_netDataWriter);
+            return _netDataWriter.CopyData();
+        }
+
+        /// <summary>
+        /// Reads one packet from NetDataReader and calls OnReceive delegate
+        /// </summary>
+        /// <param name="reader">NetDataReader with packet</param>
+        /// <param name="userData">Argument that passed to OnReceivedEvent</param>
+        /// <exception cref="ParseException">Malformed packet</exception>
+        public void ReadPacket(NetDataReader reader, object userData)
+        {
+            GetCallbackFromData(reader)(reader, userData);
+        }
+
+        /// <summary>
+        /// Register and subscribe to packet receive event
+        /// </summary>
+        /// <param name="onReceive">event that will be called when packet deserialized with ReadPacket method</param>
+        /// <param name="packetConstructor">Method that constructs packet instead of slow Activator.CreateInstance</param>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public void Subscribe<T>(Action<T> onReceive, Func<T> packetConstructor) where T : class, new()
+        {
+            _netSerializer.Register<T>();
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                var reference = packetConstructor();
+                _netSerializer.Deserialize(reader, reference);
+                onReceive(reference);
+            };
+        }
+
+        /// <summary>
+        /// Register and subscribe to packet receive event (with userData)
+        /// </summary>
+        /// <param name="onReceive">event that will be called when packet deserialized with ReadPacket method</param>
+        /// <param name="packetConstructor">Method that constructs packet instead of slow Activator.CreateInstance</param>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public void Subscribe<T, TUserData>(Action<T, TUserData> onReceive, Func<T> packetConstructor) where T : class, new()
+        {
+            _netSerializer.Register<T>();
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                var reference = packetConstructor();
+                _netSerializer.Deserialize(reader, reference);
+                onReceive(reference, (TUserData)userData);
+            };
+        }
+
+        /// <summary>
+        /// Register and subscribe to packet receive event
+        /// This method will overwrite last received packet class on receive (less garbage)
+        /// </summary>
+        /// <param name="onReceive">event that will be called when packet deserialized with ReadPacket method</param>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public void SubscribeReusable<T>(Action<T> onReceive) where T : class, new()
+        {
+            _netSerializer.Register<T>();
+            var reference = new T();
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                _netSerializer.Deserialize(reader, reference);
+                onReceive(reference);
+            };
+        }
+
+        /// <summary>
+        /// Register and subscribe to packet receive event
+        /// This method will overwrite last received packet class on receive (less garbage)
+        /// </summary>
+        /// <param name="onReceive">event that will be called when packet deserialized with ReadPacket method</param>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public void SubscribeReusable<T, TUserData>(Action<T, TUserData> onReceive) where T : class, new()
+        {
+            _netSerializer.Register<T>();
+            var reference = new T();
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                _netSerializer.Deserialize(reader, reference);
+                onReceive(reference, (TUserData)userData);
+            };
+        }
+
+        public void SubscribeNetSerializable<T, TUserData>(
+            Action<T, TUserData> onReceive, 
+            Func<T> packetConstructor) where T : INetSerializable
+        {
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                var pkt = packetConstructor();
+                pkt.Deserialize(reader);
+                onReceive(pkt, (TUserData)userData);
+            };
+        }
+
+        public void SubscribeNetSerializable<T>(
+            Action<T> onReceive,
+            Func<T> packetConstructor) where T : INetSerializable
+        {
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                var pkt = packetConstructor();
+                pkt.Deserialize(reader);
+                onReceive(pkt);
+            };
+        }
+
+        public void SubscribeNetSerializable<T, TUserData>(
+            Action<T, TUserData> onReceive) where T : INetSerializable, new()
+        {
+            var reference = new T();
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                reference.Deserialize(reader);
+                onReceive(reference, (TUserData)userData);
+            };
+        }
+
+        public void SubscribeNetSerializable<T>(
+            Action<T> onReceive) where T : INetSerializable, new()
+        {
+            var reference = new T();
+            _callbacks[GetHash<T>()] = (reader, userData) =>
+            {
+                reference.Deserialize(reader);
+                onReceive(reference);
+            };
+        }
+
+        /// <summary>
+        /// Remove any subscriptions by type
+        /// </summary>
+        /// <typeparam name="T">Packet type</typeparam>
+        /// <returns>true if remove is success</returns>
+        public bool RemoveSubscription<T>()
+        {
+            return _callbacks.Remove(GetHash<T>());
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetPacketProcessor.cs.meta

+fileFormatVersion: 2
+guid: 9b0c0e8aa2c23504fbc252cd239cddbc
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetSerializer.cs

+using System;
+using System.Reflection;
+using System.Collections.Generic;
+using System.Net;
+
+namespace LiteNetLib.Utils
+{
+    public class InvalidTypeException : ArgumentException
+    {
+        public InvalidTypeException(string message) : base(message) { }
+    }
+
+    public class ParseException : Exception
+    {
+        public ParseException(string message) : base(message) { }
+    }
+
+    public class NetSerializer
+    {
+        private enum CallType
+        {
+            Basic,
+            Array,
+            List
+        }
+
+        private abstract class FastCall<T>
+        {
+            public CallType Type;
+            public virtual void Init(MethodInfo getMethod, MethodInfo setMethod, CallType type) { Type = type; }
+            public abstract void Read(T inf, NetDataReader r);
+            public abstract void Write(T inf, NetDataWriter w);
+            public abstract void ReadArray(T inf, NetDataReader r);
+            public abstract void WriteArray(T inf, NetDataWriter w);
+            public abstract void ReadList(T inf, NetDataReader r);
+            public abstract void WriteList(T inf, NetDataWriter w);
+        }
+
+        private abstract class FastCallSpecific<TClass, TProperty> : FastCall<TClass>
+        {
+            protected Func<TClass, TProperty> Getter;
+            protected Action<TClass, TProperty> Setter;
+            protected Func<TClass, TProperty[]> GetterArr;
+            protected Action<TClass, TProperty[]> SetterArr;
+            protected Func<TClass, List<TProperty>> GetterList;
+            protected Action<TClass, List<TProperty>> SetterList;
+
+            public override void ReadArray(TClass inf, NetDataReader r) { throw new InvalidTypeException("Unsupported type: " + typeof(TProperty) + "[]"); }
+            public override void WriteArray(TClass inf, NetDataWriter w) { throw new InvalidTypeException("Unsupported type: " + typeof(TProperty) + "[]"); }
+            public override void ReadList(TClass inf, NetDataReader r) { throw new InvalidTypeException("Unsupported type: List<" + typeof(TProperty) + ">"); }
+            public override void WriteList(TClass inf, NetDataWriter w) { throw new InvalidTypeException("Unsupported type: List<" + typeof(TProperty) + ">"); }
+
+            protected TProperty[] ReadArrayHelper(TClass inf, NetDataReader r)
+            {
+                ushort count = r.GetUShort();
+                var arr = GetterArr(inf);
+                arr = arr == null || arr.Length != count ? new TProperty[count] : arr;
+                SetterArr(inf, arr);
+                return arr;
+            }
+
+            protected TProperty[] WriteArrayHelper(TClass inf, NetDataWriter w)
+            {
+                var arr = GetterArr(inf);
+                w.Put((ushort)arr.Length);
+                return arr;
+            }
+
+            protected List<TProperty> ReadListHelper(TClass inf, NetDataReader r, out int len)
+            {
+                len = r.GetUShort();
+                var list = GetterList(inf);
+                if (list == null)
+                {
+                    list = new List<TProperty>(len);
+                    SetterList(inf, list);
+                }
+                return list;
+            }
+
+            protected List<TProperty> WriteListHelper(TClass inf, NetDataWriter w, out int len)
+            {
+                var list = GetterList(inf);
+                if (list == null)
+                {
+                    len = 0;
+                    w.Put(0);
+                    return null;
+                }
+                len = list.Count;
+                w.Put((ushort)len);
+                return list;
+            }
+
+            public override void Init(MethodInfo getMethod, MethodInfo setMethod, CallType type)
+            {
+                base.Init(getMethod, setMethod, type);
+                switch (type)
+                {
+                    case CallType.Array:
+                        GetterArr = (Func<TClass, TProperty[]>)Delegate.CreateDelegate(typeof(Func<TClass, TProperty[]>), getMethod);
+                        SetterArr = (Action<TClass, TProperty[]>)Delegate.CreateDelegate(typeof(Action<TClass, TProperty[]>), setMethod);
+                        break;
+                    case CallType.List:
+                        GetterList = (Func<TClass, List<TProperty>>)Delegate.CreateDelegate(typeof(Func<TClass, List<TProperty>>), getMethod);
+                        SetterList = (Action<TClass, List<TProperty>>)Delegate.CreateDelegate(typeof(Action<TClass, List<TProperty>>), setMethod);
+                        break;
+                    default:
+                        Getter = (Func<TClass, TProperty>)Delegate.CreateDelegate(typeof(Func<TClass, TProperty>), getMethod);
+                        Setter = (Action<TClass, TProperty>)Delegate.CreateDelegate(typeof(Action<TClass, TProperty>), setMethod);
+                        break;
+                }
+            }
+        }
+
+        private abstract class FastCallSpecificAuto<TClass, TProperty> : FastCallSpecific<TClass, TProperty>
+        {
+            protected abstract void ElementRead(NetDataReader r, out TProperty prop);
+            protected abstract void ElementWrite(NetDataWriter w, ref TProperty prop);
+
+            public override void Read(TClass inf, NetDataReader r)
+            {
+                TProperty elem;
+                ElementRead(r, out elem);
+                Setter(inf, elem);
+            }
+
+            public override void Write(TClass inf, NetDataWriter w)
+            {
+                var elem = Getter(inf);
+                ElementWrite(w, ref elem);
+            }
+
+            public override void ReadArray(TClass inf, NetDataReader r)
+            {
+                var arr = ReadArrayHelper(inf, r);
+                for (int i = 0; i < arr.Length; i++)
+                    ElementRead(r, out arr[i]);
+            }
+
+            public override void WriteArray(TClass inf, NetDataWriter w)
+            {
+                var arr = WriteArrayHelper(inf, w);
+                for (int i = 0; i < arr.Length; i++)
+                    ElementWrite(w, ref arr[i]);
+            }
+        }
+
+        private sealed class FastCallStatic<TClass, TProperty> : FastCallSpecific<TClass, TProperty>
+        {
+            private readonly Action<NetDataWriter, TProperty> _writer;
+            private readonly Func<NetDataReader, TProperty> _reader;
+
+            public FastCallStatic(Action<NetDataWriter, TProperty> write, Func<NetDataReader, TProperty> read)
+            {
+                _writer = write;
+                _reader = read;
+            }
+
+            public override void Read(TClass inf, NetDataReader r) { Setter(inf, _reader(r)); }
+            public override void Write(TClass inf, NetDataWriter w) { _writer(w, Getter(inf)); }
+
+            public override void ReadList(TClass inf, NetDataReader r)
+            {
+                int len;
+                var list = ReadListHelper(inf, r, out len);
+                int listCount = list.Count;
+                if (len > listCount)
+                {
+                    for (int i = 0; i < listCount; i++)
+                        list[i] = _reader(r);
+                    for (int i = listCount; i < len; i++)
+                        list.Add(_reader(r));
+                    return;
+                }
+                if (len < listCount)
+                    list.RemoveRange(len, listCount - len);
+                for (int i = 0; i < len; i++)
+                    list[i] = _reader(r);
+            }
+
+            public override void WriteList(TClass inf, NetDataWriter w)
+            {
+                int len;
+                var list = WriteListHelper(inf, w, out len);
+                for (int i = 0; i < len; i++)
+                    _writer(w, list[i]);
+            }
+
+            public override void ReadArray(TClass inf, NetDataReader r)
+            {
+                var arr = ReadArrayHelper(inf, r);
+                int len = arr.Length;
+                for (int i = 0; i < len; i++)
+                    arr[i] = _reader(r);
+            }
+
+            public override void WriteArray(TClass inf, NetDataWriter w)
+            {
+                var arr = WriteArrayHelper(inf, w);
+                int len = arr.Length;
+                for (int i = 0; i < len; i++)
+                    _writer(w, arr[i]);
+            }
+        }
+
+        private sealed class FastCallStruct<TClass, TProperty> : FastCallSpecific<TClass, TProperty> where TProperty : struct, INetSerializable
+        {
+            private TProperty _p;
+
+            public override void Read(TClass inf, NetDataReader r)
+            {
+                _p.Deserialize(r);
+                Setter(inf, _p);
+            }
+
+            public override void Write(TClass inf, NetDataWriter w)
+            {
+                _p = Getter(inf);
+                _p.Serialize(w);
+            }
+
+            public override void ReadList(TClass inf, NetDataReader r)
+            {
+                int len;
+                var list = ReadListHelper(inf, r, out len);
+                int listCount = list.Count;
+                if (len > listCount)
+                {
+                    for (int i = 0; i < listCount; i++)
+                        list[i].Deserialize(r);
+                    for (int i = listCount; i < len; i++)
+                    {
+                        var itm = default(TProperty);
+                        itm.Deserialize(r);
+                        list.Add(itm);
+                    }
+                    return;
+                }
+                if(len < listCount)
+                    list.RemoveRange(len, listCount - len);
+                for (int i = 0; i < len; i++)
+                    list[i].Deserialize(r);
+            }
+
+            public override void WriteList(TClass inf, NetDataWriter w)
+            {
+                int len;
+                var list = WriteListHelper(inf, w, out len);
+                for (int i = 0; i < len; i++)
+                    list[i].Serialize(w);
+            }
+
+            public override void ReadArray(TClass inf, NetDataReader r)
+            {
+                var arr = ReadArrayHelper(inf, r);
+                int len = arr.Length;
+                for (int i = 0; i < len; i++)
+                    arr[i].Deserialize(r);
+            }
+
+            public override void WriteArray(TClass inf, NetDataWriter w)
+            {
+                var arr = WriteArrayHelper(inf, w);
+                int len = arr.Length;
+                for (int i = 0; i < len; i++)
+                    arr[i].Serialize(w);
+            }
+        }
+
+        private sealed class FastCallClass<TClass, TProperty> : FastCallSpecific<TClass, TProperty> where TProperty : class, INetSerializable
+        {
+            private readonly Func<TProperty> _constructor;
+            public FastCallClass(Func<TProperty> constructor) { _constructor = constructor; }
+
+            public override void Read(TClass inf, NetDataReader r)
+            {
+                var p = _constructor();
+                p.Deserialize(r);
+                Setter(inf, p);
+            }
+
+            public override void Write(TClass inf, NetDataWriter w)
+            {
+                var p = Getter(inf);
+                if(p != null)
+                    p.Serialize(w);
+            }
+
+            public override void ReadList(TClass inf, NetDataReader r)
+            {
+                int len;
+                var list = ReadListHelper(inf, r, out len);
+                int listCount = list.Count;
+                if (len > listCount)
+                {
+                    for (int i = 0; i < listCount; i++)
+                        list[i].Deserialize(r);
+                    for (int i = listCount; i < len; i++)
+                    {
+                        var itm = _constructor();
+                        itm.Deserialize(r);
+                        list.Add(itm);
+                    }
+                    return;
+                }
+                if (len < listCount)
+                    list.RemoveRange(len, listCount - len);
+                for (int i = 0; i < len; i++)
+                    list[i].Deserialize(r);
+            }
+
+            public override void WriteList(TClass inf, NetDataWriter w)
+            {
+                int len;
+                var list = WriteListHelper(inf, w, out len);
+                for (int i = 0; i < len; i++)
+                    list[i].Serialize(w);
+            }
+
+            public override void ReadArray(TClass inf, NetDataReader r)
+            {
+                var arr = ReadArrayHelper(inf, r);
+                int len = arr.Length;
+                for (int i = 0; i < len; i++)
+                {
+                    arr[i] = _constructor();
+                    arr[i].Deserialize(r);
+                }
+            }
+
+            public override void WriteArray(TClass inf, NetDataWriter w)
+            {
+                var arr = WriteArrayHelper(inf, w);
+                int len = arr.Length;
+                for (int i = 0; i < len; i++)
+                    arr[i].Serialize(w);
+            }
+        }
+
+        private class IntSerializer<T> : FastCallSpecific<T, int>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetInt()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetIntArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class UIntSerializer<T> : FastCallSpecific<T, uint>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetUInt()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetUIntArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class ShortSerializer<T> : FastCallSpecific<T, short>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetShort()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetShortArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class UShortSerializer<T> : FastCallSpecific<T, ushort>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetUShort()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetUShortArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class LongSerializer<T> : FastCallSpecific<T, long>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetLong()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetLongArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class ULongSerializer<T> : FastCallSpecific<T, ulong>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetULong()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetULongArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class ByteSerializer<T> : FastCallSpecific<T, byte>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetByte()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetBytesWithLength()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutBytesWithLength(GetterArr(inf)); }
+        }
+
+        private class SByteSerializer<T> : FastCallSpecific<T, sbyte>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetSByte()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetSBytesWithLength()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutSBytesWithLength(GetterArr(inf)); }
+        }
+
+        private class FloatSerializer<T> : FastCallSpecific<T, float>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetFloat()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetFloatArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class DoubleSerializer<T> : FastCallSpecific<T, double>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetDouble()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetDoubleArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class BoolSerializer<T> : FastCallSpecific<T, bool>
+        {
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetBool()); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf)); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetBoolArray()); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf)); }
+        }
+
+        private class CharSerializer<T> : FastCallSpecificAuto<T, char>
+        {
+            protected override void ElementWrite(NetDataWriter w, ref char prop) { w.Put(prop); }
+            protected override void ElementRead(NetDataReader r, out char prop) { prop = r.GetChar(); }
+        }
+
+        private class IPEndPointSerializer<T> : FastCallSpecificAuto<T, IPEndPoint>
+        {
+            protected override void ElementWrite(NetDataWriter w, ref IPEndPoint prop) { w.Put(prop); }
+            protected override void ElementRead(NetDataReader r, out IPEndPoint prop) { prop = r.GetNetEndPoint(); }
+        }
+
+        private class StringSerializer<T> : FastCallSpecific<T, string>
+        {
+            private readonly int _maxLength;
+            public StringSerializer(int maxLength) { _maxLength = maxLength > 0 ? maxLength : short.MaxValue; }
+            public override void Read(T inf, NetDataReader r) { Setter(inf, r.GetString(_maxLength)); }
+            public override void Write(T inf, NetDataWriter w) { w.Put(Getter(inf), _maxLength); }
+            public override void ReadArray(T inf, NetDataReader r) { SetterArr(inf, r.GetStringArray(_maxLength)); }
+            public override void WriteArray(T inf, NetDataWriter w) { w.PutArray(GetterArr(inf), _maxLength); }
+        }
+
+        private class EnumByteSerializer<T> : FastCall<T>
+        {
+            protected readonly PropertyInfo Property;
+            protected readonly Type PropertyType;
+            public EnumByteSerializer(PropertyInfo property, Type propertyType)
+            {
+                Property = property;
+                PropertyType = propertyType;
+            }
+            public override void Read(T inf, NetDataReader r) { Property.SetValue(inf, Enum.ToObject(PropertyType, r.GetByte()), null); }
+            public override void Write(T inf, NetDataWriter w) { w.Put((byte)Property.GetValue(inf, null)); }
+            public override void ReadArray(T inf, NetDataReader r) { throw new InvalidTypeException("Unsupported type: Enum[]"); }
+            public override void WriteArray(T inf, NetDataWriter w) { throw new InvalidTypeException("Unsupported type: Enum[]"); }
+            public override void ReadList(T inf, NetDataReader r) { throw new InvalidTypeException("Unsupported type: List<Enum>"); }
+            public override void WriteList(T inf, NetDataWriter w) { throw new InvalidTypeException("Unsupported type: List<Enum>"); }
+        }
+
+        private class EnumIntSerializer<T> : EnumByteSerializer<T>
+        {
+            public EnumIntSerializer(PropertyInfo property, Type propertyType) : base(property, propertyType) { }
+            public override void Read(T inf, NetDataReader r) { Property.SetValue(inf, Enum.ToObject(PropertyType, r.GetInt()), null); }
+            public override void Write(T inf, NetDataWriter w) { w.Put((int)Property.GetValue(inf, null)); }
+        }
+
+        private sealed class ClassInfo<T>
+        {
+            public static ClassInfo<T> Instance;
+            private readonly FastCall<T>[] _serializers;
+            private readonly int _membersCount;
+
+            public ClassInfo(List<FastCall<T>> serializers)
+            {
+                _membersCount = serializers.Count;
+                _serializers = serializers.ToArray();
+            }
+
+            public void Write(T obj, NetDataWriter writer)
+            {
+                for (int i = 0; i < _membersCount; i++)
+                {
+                    var s = _serializers[i];
+                    if (s.Type == CallType.Basic)
+                        s.Write(obj, writer);
+                    else if (s.Type == CallType.Array)
+                        s.WriteArray(obj, writer);
+                    else
+                        s.WriteList(obj, writer);
+                }
+            }
+
+            public void Read(T obj, NetDataReader reader)
+            {
+                for (int i = 0; i < _membersCount; i++)
+                {
+                    var s = _serializers[i];
+                    if (s.Type == CallType.Basic)
+                        s.Read(obj, reader);
+                    else if(s.Type == CallType.Array)
+                        s.ReadArray(obj, reader);
+                    else
+                        s.ReadList(obj, reader);
+                }
+            }
+        }
+
+        private abstract class CustomType
+        {
+            public abstract FastCall<T> Get<T>();
+        }
+
+        private sealed class CustomTypeStruct<TProperty> : CustomType where TProperty : struct, INetSerializable
+        {
+            public override FastCall<T> Get<T>() { return new FastCallStruct<T, TProperty>(); }
+        }
+
+        private sealed class CustomTypeClass<TProperty> : CustomType where TProperty : class, INetSerializable
+        {
+            private readonly Func<TProperty> _constructor;
+            public CustomTypeClass(Func<TProperty> constructor) { _constructor = constructor; }
+            public override FastCall<T> Get<T>() { return new FastCallClass<T, TProperty>(_constructor); }
+        }
+
+        private sealed class CustomTypeStatic<TProperty> : CustomType
+        {
+            private readonly Action<NetDataWriter, TProperty> _writer;
+            private readonly Func<NetDataReader, TProperty> _reader;
+            public CustomTypeStatic(Action<NetDataWriter, TProperty> writer, Func<NetDataReader, TProperty> reader)
+            {
+                _writer = writer;
+                _reader = reader;
+            }
+            public override FastCall<T> Get<T>() { return new FastCallStatic<T, TProperty>(_writer, _reader); }
+        }
+
+        /// <summary>
+        /// Register custom property type
+        /// </summary>
+        /// <typeparam name="T">INetSerializable structure</typeparam>
+        public void RegisterNestedType<T>() where T : struct, INetSerializable
+        {
+            _registeredTypes.Add(typeof(T), new CustomTypeStruct<T>());
+        }
+
+        /// <summary>
+        /// Register custom property type
+        /// </summary>
+        /// <typeparam name="T">INetSerializable class</typeparam>
+        public void RegisterNestedType<T>(Func<T> constructor) where T : class, INetSerializable
+        {
+            _registeredTypes.Add(typeof(T), new CustomTypeClass<T>(constructor));
+        }
+
+        /// <summary>
+        /// Register custom property type
+        /// </summary>
+        /// <typeparam name="T">Any packet</typeparam>
+        /// <param name="writer">custom type writer</param>
+        /// <param name="reader">custom type reader</param>
+        public void RegisterNestedType<T>(Action<NetDataWriter, T> writer, Func<NetDataReader, T> reader)
+        {
+            _registeredTypes.Add(typeof(T), new CustomTypeStatic<T>(writer, reader));
+        }
+
+        private NetDataWriter _writer;
+        private readonly int _maxStringLength;
+        private readonly Dictionary<Type, CustomType> _registeredTypes = new Dictionary<Type, CustomType>();
+
+        public NetSerializer() : this(0)
+        {
+        }
+
+        public NetSerializer(int maxStringLength)
+        {
+            _maxStringLength = maxStringLength;
+        }
+
+        private ClassInfo<T> RegisterInternal<T>()
+        {
+            if (ClassInfo<T>.Instance != null)
+                return ClassInfo<T>.Instance;
+
+            Type t = typeof(T);
+            var props = t.GetProperties(
+                BindingFlags.Instance |
+                BindingFlags.Public |
+                BindingFlags.GetProperty |
+                BindingFlags.SetProperty);
+            var serializers = new List<FastCall<T>>();
+            for (int i = 0; i < props.Length; i++)
+            {
+                var property = props[i];
+                var propertyType = property.PropertyType;
+
+                var elementType = propertyType.IsArray ? propertyType.GetElementType() : propertyType;
+                var callType = propertyType.IsArray ? CallType.Array : CallType.Basic;
+
+                if (propertyType.IsGenericType && propertyType.GetGenericTypeDefinition() == typeof(List<>))
+                {
+                    elementType = propertyType.GetGenericArguments()[0];
+                    callType = CallType.List;
+                }
+
+                var getMethod = property.GetGetMethod();
+                var setMethod = property.GetSetMethod();
+                if (getMethod == null || setMethod == null)
+                    continue;
+
+                FastCall<T> serialzer = null;
+                if (propertyType.IsEnum)
+                {
+                    var underlyingType = Enum.GetUnderlyingType(propertyType);
+                    if (underlyingType == typeof(byte))
+                        serialzer = new EnumByteSerializer<T>(property, propertyType);
+                    else if (underlyingType == typeof(int))
+                        serialzer = new EnumIntSerializer<T>(property, propertyType);
+                    else
+                        throw new InvalidTypeException("Not supported enum underlying type: " + underlyingType.Name);
+                }
+                else if (elementType == typeof(string))
+                    serialzer = new StringSerializer<T>(_maxStringLength);
+                else if (elementType == typeof(bool))
+                    serialzer = new BoolSerializer<T>();
+                else if (elementType == typeof(byte))
+                    serialzer = new ByteSerializer<T>();
+                else if (elementType == typeof(sbyte))
+                    serialzer = new SByteSerializer<T>();
+                else if (elementType == typeof(short))
+                    serialzer = new ShortSerializer<T>();
+                else if (elementType == typeof(ushort))
+                    serialzer = new UShortSerializer<T>();
+                else if (elementType == typeof(int))
+                    serialzer = new IntSerializer<T>();
+                else if (elementType == typeof(uint))
+                    serialzer = new UIntSerializer<T>();
+                else if (elementType == typeof(long))
+                    serialzer = new LongSerializer<T>();
+                else if (elementType == typeof(ulong))
+                    serialzer = new ULongSerializer<T>();
+                else if (elementType == typeof(float))
+                    serialzer = new FloatSerializer<T>();
+                else if (elementType == typeof(double))
+                    serialzer = new DoubleSerializer<T>();
+                else if (elementType == typeof(char))
+                    serialzer = new CharSerializer<T>();
+                else if (elementType == typeof(IPEndPoint))
+                    serialzer = new IPEndPointSerializer<T>();
+                else
+                {
+                    CustomType customType;
+                    _registeredTypes.TryGetValue(elementType, out customType);
+                    if (customType != null)
+                        serialzer = customType.Get<T>();
+                }
+
+                if (serialzer != null)
+                {
+                    serialzer.Init(getMethod, setMethod, callType);
+                    serializers.Add(serialzer);
+                }
+                else
+                {
+                    throw new InvalidTypeException("Unknown property type: " + propertyType.FullName);
+                }
+            }
+            ClassInfo<T>.Instance = new ClassInfo<T>(serializers);
+            return ClassInfo<T>.Instance;
+        }
+
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public void Register<T>()
+        {
+            RegisterInternal<T>();
+        }
+
+        /// <summary>
+        /// Reads packet with known type
+        /// </summary>
+        /// <param name="reader">NetDataReader with packet</param>
+        /// <returns>Returns packet if packet in reader is matched type</returns>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public T Deserialize<T>(NetDataReader reader) where T : class, new()
+        {
+            var info = RegisterInternal<T>();
+            var result = new T();
+            try
+            {
+                info.Read(result, reader);
+            }
+            catch
+            {
+                return null;
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// Reads packet with known type (non alloc variant)
+        /// </summary>
+        /// <param name="reader">NetDataReader with packet</param>
+        /// <param name="target">Deserialization target</param>
+        /// <returns>Returns true if packet in reader is matched type</returns>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public bool Deserialize<T>(NetDataReader reader, T target) where T : class, new()
+        {
+            var info = RegisterInternal<T>();
+            try
+            {
+                info.Read(target, reader);
+            }
+            catch
+            {
+                return false;
+            }
+            return true;
+        }
+
+        /// <summary>
+        /// Serialize object to NetDataWriter (fast)
+        /// </summary>
+        /// <param name="writer">Serialization target NetDataWriter</param>
+        /// <param name="obj">Object to serialize</param>
+        /// <exception cref="InvalidTypeException"><typeparamref name="T"/>'s fields are not supported, or it has no fields</exception>
+        public void Serialize<T>(NetDataWriter writer, T obj) where T : class, new()
+        {
+            RegisterInternal<T>().Write(obj, writer);
+        }
+
+        /// <summary>
+        /// Serialize object to byte array
+        /// </summary>
+        /// <param name="obj">Object to serialize</param>
+        /// <returns>byte array with serialized data</returns>
+        public byte[] Serialize<T>(T obj) where T : class, new()
+        {
+            if (_writer == null)
+                _writer = new NetDataWriter();
+            _writer.Reset();
+            Serialize(_writer, obj);
+            return _writer.CopyData();
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NetSerializer.cs.meta

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+guid: 15d07ef2204a4b04a9b6a94a1b7e61ae
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NtpPacket.cs

+using System;
+
+namespace LiteNetLib.Utils
+{
+    /// <summary>
+    /// Represents RFC4330 SNTP packet used for communication to and from a network time server.
+    /// </summary>
+    /// <remarks>
+    /// <para>
+    /// Most applications should just use the <see cref="NtpPacket.CorrectionOffset" /> property.
+    /// </para>
+    /// <para>
+    /// The same data structure represents both request and reply packets.
+    /// Request and reply differ in which properties are set and to what values.
+    /// </para>
+    /// <para>
+    /// The only real property is <see cref="NtpPacket.Bytes" />.
+    /// All other properties read from and write to the underlying byte array
+    /// with the exception of <see cref="NtpPacket.DestinationTimestamp" />,
+    /// which is not part of the packet on network and it is instead set locally after receiving the packet.
+    /// </para>
+    /// <para>
+    /// Copied from <a href="https://guerrillantp.machinezoo.com/">GuerrillaNtp project</a>
+    /// with permission from Robert Vazan (@robertvazan) under MIT license, see https://github.com/RevenantX/LiteNetLib/pull/236
+    /// </para>
+    /// </remarks>
+    public class NtpPacket
+    {
+        private static readonly DateTime Epoch = new DateTime(1900, 1, 1);
+
+        /// <summary>
+        /// Gets RFC4330-encoded SNTP packet.
+        /// </summary>
+        /// <value>
+        /// Byte array containing RFC4330-encoded SNTP packet. It is at least 48 bytes long.
+        /// </value>
+        /// <remarks>
+        /// This is the only real property. All other properties except
+        /// <see cref="NtpPacket.DestinationTimestamp" /> read from or write to this byte array.
+        /// </remarks>
+        public byte[] Bytes { get; private set; }
+
+        /// <summary>
+        /// Gets the leap second indicator.
+        /// </summary>
+        /// <value>
+        /// Leap second warning, if any. Special value
+        /// <see cref="NtpLeapIndicator.AlarmCondition" /> indicates unsynchronized server clock.
+        /// Default is <see cref="NtpLeapIndicator.NoWarning" />.
+        /// </value>
+        /// <remarks>
+        /// Only servers fill in this property. Clients can consult this property for possible leap second warning.
+        /// </remarks>
+        public NtpLeapIndicator LeapIndicator
+        {
+            get { return (NtpLeapIndicator)((Bytes[0] & 0xC0) >> 6); }
+        }
+
+        /// <summary>
+        /// Gets or sets protocol version number.
+        /// </summary>
+        /// <value>
+        /// SNTP protocol version. Default is 4, which is the latest version at the time of this writing.
+        /// </value>
+        /// <remarks>
+        /// In request packets, clients should leave this property at default value 4.
+        /// Servers usually reply with the same protocol version.
+        /// </remarks>
+        public int VersionNumber
+        {
+            get { return (Bytes[0] & 0x38) >> 3; }
+            private set { Bytes[0] = (byte)((Bytes[0] & ~0x38) | value << 3); }
+        }
+
+        /// <summary>
+        /// Gets or sets SNTP packet mode, i.e. whether this is client or server packet.
+        /// </summary>
+        /// <value>
+        /// SNTP packet mode. Default is <see cref="NtpMode.Client" /> in newly created packets.
+        /// Server reply should have this property set to <see cref="NtpMode.Server" />.
+        /// </value>
+        public NtpMode Mode
+        {
+            get { return (NtpMode)(Bytes[0] & 0x07); }
+            private set { Bytes[0] = (byte)((Bytes[0] & ~0x07) | (int)value); }
+        }
+
+        /// <summary>
+        /// Gets server's distance from the reference clock.
+        /// </summary>
+        /// <value>
+        /// <para>
+        /// Distance from the reference clock. This property is set only in server reply packets.
+        /// Servers connected directly to reference clock hardware set this property to 1.
+        /// Statum number is incremented by 1 on every hop down the NTP server hierarchy.
+        /// </para>
+        /// <para>
+        /// Special value 0 indicates that this packet is a Kiss-o'-Death message
+        /// with kiss code stored in <see cref="NtpPacket.ReferenceId" />.
+        /// </para>
+        /// </value>
+        public int Stratum { get { return Bytes[1]; } }
+
+        /// <summary>
+        /// Gets server's preferred polling interval.
+        /// </summary>
+        /// <value>
+        /// Polling interval in log2 seconds, e.g. 4 stands for 16s and 17 means 131,072s.
+        /// </value>
+        public int Poll { get { return Bytes[2]; } }
+
+        /// <summary>
+        /// Gets the precision of server clock.
+        /// </summary>
+        /// <value>
+        /// Clock precision in log2 seconds, e.g. -20 for microsecond precision.
+        /// </value>
+        public int Precision { get { return (sbyte)Bytes[3]; } }
+
+        /// <summary>
+        /// Gets the total round-trip delay from the server to the reference clock.
+        /// </summary>
+        /// <value>
+        /// Round-trip delay to the reference clock. Normally a positive value smaller than one second.
+        /// </value>
+        public TimeSpan RootDelay { get { return GetTimeSpan32(4); } }
+
+        /// <summary>
+        /// Gets the estimated error in time reported by the server.
+        /// </summary>
+        /// <value>
+        /// Estimated error in time reported by the server. Normally a positive value smaller than one second.
+        /// </value>
+        public TimeSpan RootDispersion { get { return GetTimeSpan32(8); } }
+
+        /// <summary>
+        /// Gets the ID of the time source used by the server or Kiss-o'-Death code sent by the server.
+        /// </summary>
+        /// <value>
+        /// <para>
+        /// ID of server's time source or Kiss-o'-Death code.
+        /// Purpose of this property depends on value of <see cref="NtpPacket.Stratum" /> property.
+        /// </para>
+        /// <para>
+        /// Stratum 1 servers write here one of several special values that describe the kind of hardware clock they use.
+        /// </para>
+        /// <para>
+        /// Stratum 2 and lower servers set this property to IPv4 address of their upstream server.
+        /// If upstream server has IPv6 address, the address is hashed, because it doesn't fit in this property.
+        /// </para>
+        /// <para>
+        /// When server sets <see cref="NtpPacket.Stratum" /> to special value 0,
+        /// this property contains so called kiss code that instructs the client to stop querying the server.
+        /// </para>
+        /// </value>
+        public uint ReferenceId { get { return GetUInt32BE(12); } }
+
+        /// <summary>
+        /// Gets or sets the time when the server clock was last set or corrected.
+        /// </summary>
+        /// <value>
+        /// Time when the server clock was last set or corrected or <c>null</c> when not specified.
+        /// </value>
+        /// <remarks>
+        /// This Property is usually set only by servers. It usually lags server's current time by several minutes,
+        /// so don't use this property for time synchronization.
+        /// </remarks>
+        public DateTime? ReferenceTimestamp { get { return GetDateTime64(16); } }
+
+        /// <summary>
+        /// Gets or sets the time when the client sent its request.
+        /// </summary>
+        /// <value>
+        /// This property is <c>null</c> in request packets.
+        /// In reply packets, it is the time when the client sent its request.
+        /// Servers copy this value from <see cref="NtpPacket.TransmitTimestamp" />
+        /// that they find in received request packet.
+        /// </value>
+        /// <seealso cref="NtpPacket.CorrectionOffset" />
+        /// <seealso cref="NtpPacket.RoundTripTime" />
+        public DateTime? OriginTimestamp { get { return GetDateTime64(24); } }
+
+        /// <summary>
+        /// Gets or sets the time when the request was received by the server.
+        /// </summary>
+        /// <value>
+        /// This property is <c>null</c> in request packets.
+        /// In reply packets, it is the time when the server received client request.
+        /// </value>
+        /// <seealso cref="NtpPacket.CorrectionOffset" />
+        /// <seealso cref="NtpPacket.RoundTripTime" />
+        public DateTime? ReceiveTimestamp { get { return GetDateTime64(32); } }
+
+        /// <summary>
+        /// Gets or sets the time when the packet was sent.
+        /// </summary>
+        /// <value>
+        /// Time when the packet was sent. It should never be <c>null</c>.
+        /// Default value is <see cref="System.DateTime.UtcNow" />.
+        /// </value>
+        /// <remarks>
+        /// This property must be set by both clients and servers.
+        /// </remarks>
+        /// <seealso cref="NtpPacket.CorrectionOffset" />
+        /// <seealso cref="NtpPacket.RoundTripTime" />
+        public DateTime? TransmitTimestamp { get { return GetDateTime64(40); } private set { SetDateTime64(40, value); } }
+
+        /// <summary>
+        /// Gets or sets the time of reception of response SNTP packet on the client.
+        /// </summary>
+        /// <value>
+        /// Time of reception of response SNTP packet on the client. It is <c>null</c> in request packets.
+        /// </value>
+        /// <remarks>
+        /// This property is not part of the protocol and has to be set when reply packet is received.
+        /// </remarks>
+        /// <seealso cref="NtpPacket.CorrectionOffset" />
+        /// <seealso cref="NtpPacket.RoundTripTime" />
+        public DateTime? DestinationTimestamp { get; private set; }
+
+        /// <summary>
+        /// Gets the round-trip time to the server.
+        /// </summary>
+        /// <value>
+        /// Time the request spent traveling to the server plus the time the reply spent traveling back.
+        /// This is calculated from timestamps in the packet as <c>(t1 - t0) + (t3 - t2)</c>
+        /// where t0 is <see cref="NtpPacket.OriginTimestamp" />,
+        /// t1 is <see cref="NtpPacket.ReceiveTimestamp" />,
+        /// t2 is <see cref="NtpPacket.TransmitTimestamp" />,
+        /// and t3 is <see cref="NtpPacket.DestinationTimestamp" />.
+        /// This property throws an exception in request packets.
+        /// </value>
+        public TimeSpan RoundTripTime
+        {
+            get
+            {
+                CheckTimestamps();
+                return (ReceiveTimestamp.Value - OriginTimestamp.Value) + (DestinationTimestamp.Value - TransmitTimestamp.Value);
+            }
+        }
+
+        /// <summary>
+        /// Gets the offset that should be added to local time to synchronize it with server time.
+        /// </summary>
+        /// <value>
+        /// Time difference between server and client. It should be added to local time to get server time.
+        /// It is calculated from timestamps in the packet as <c>0.5 * ((t1 - t0) - (t3 - t2))</c>
+        /// where t0 is <see cref="NtpPacket.OriginTimestamp" />,
+        /// t1 is <see cref="NtpPacket.ReceiveTimestamp" />,
+        /// t2 is <see cref="NtpPacket.TransmitTimestamp" />,
+        /// and t3 is <see cref="NtpPacket.DestinationTimestamp" />.
+        /// This property throws an exception in request packets.
+        /// </value>
+        public TimeSpan CorrectionOffset
+        {
+            get
+            {
+                CheckTimestamps();
+                return TimeSpan.FromTicks(((ReceiveTimestamp.Value - OriginTimestamp.Value) - (DestinationTimestamp.Value - TransmitTimestamp.Value)).Ticks / 2);
+            }
+        }
+
+        /// <summary>
+        /// Initializes default request packet.
+        /// </summary>
+        /// <remarks>
+        /// Properties <see cref="NtpPacket.Mode" /> and <see cref="NtpPacket.VersionNumber" />
+        /// are set appropriately for request packet. Property <see cref="NtpPacket.TransmitTimestamp" />
+        /// is set to <see cref="System.DateTime.UtcNow" />.
+        /// </remarks>
+        public NtpPacket() : this(new byte[48])
+        {
+            Mode = NtpMode.Client;
+            VersionNumber = 4;
+            TransmitTimestamp = DateTime.UtcNow;
+        }
+
+        /// <summary>
+        /// Initializes packet from received data.
+        /// </summary>
+        internal NtpPacket(byte[] bytes)
+        {
+            if (bytes.Length < 48)
+                throw new ArgumentException("SNTP reply packet must be at least 48 bytes long.", "bytes");
+            Bytes = bytes;
+        }
+
+        /// <summary>
+        /// Initializes packet from data received from a server.
+        /// </summary>
+        /// <param name="bytes">Data received from the server.</param>
+        /// <param name="destinationTimestamp">Utc time of reception of response SNTP packet on the client.</param>
+        /// <returns></returns>
+        public static NtpPacket FromServerResponse(byte[] bytes, DateTime destinationTimestamp)
+        {
+            return new NtpPacket(bytes) { DestinationTimestamp = destinationTimestamp };
+        }
+
+        internal void ValidateRequest()
+        {
+            if (Mode != NtpMode.Client)
+                throw new InvalidOperationException("This is not a request SNTP packet.");
+            if (VersionNumber == 0)
+                throw new InvalidOperationException("Protocol version of the request is not specified.");
+            if (TransmitTimestamp == null)
+                throw new InvalidOperationException("TransmitTimestamp must be set in request packet.");
+        }
+
+        internal void ValidateReply()
+        {
+            if (Mode != NtpMode.Server)
+                throw new InvalidOperationException("This is not a reply SNTP packet.");
+            if (VersionNumber == 0)
+                throw new InvalidOperationException("Protocol version of the reply is not specified.");
+            if (Stratum == 0)
+                throw new InvalidOperationException(string.Format("Received Kiss-o'-Death SNTP packet with code 0x{0:x}.", ReferenceId));
+            if (LeapIndicator == NtpLeapIndicator.AlarmCondition)
+                throw new InvalidOperationException("SNTP server has unsynchronized clock.");
+            CheckTimestamps();
+        }
+
+        private void CheckTimestamps()
+        {
+            if (OriginTimestamp == null)
+                throw new InvalidOperationException("Origin timestamp is missing.");
+            if (ReceiveTimestamp == null)
+                throw new InvalidOperationException("Receive timestamp is missing.");
+            if (TransmitTimestamp == null)
+                throw new InvalidOperationException("Transmit timestamp is missing.");
+            if (DestinationTimestamp == null)
+                throw new InvalidOperationException("Destination timestamp is missing.");
+        }
+
+        private DateTime? GetDateTime64(int offset)
+        {
+            var field = GetUInt64BE(offset);
+            if (field == 0)
+                return null;
+            return new DateTime(Epoch.Ticks + Convert.ToInt64(field * (1.0 / (1L << 32) * 10000000.0)));
+        }
+
+        private void SetDateTime64(int offset, DateTime? value)
+        {
+            SetUInt64BE(offset, value == null ? 0 : Convert.ToUInt64((value.Value.Ticks - Epoch.Ticks) * (0.0000001 * (1L << 32))));
+        }
+
+        private TimeSpan GetTimeSpan32(int offset)
+        {
+            return TimeSpan.FromSeconds(GetInt32BE(offset) / (double)(1 << 16));
+        }
+
+        private ulong GetUInt64BE(int offset)
+        {
+            return SwapEndianness(BitConverter.ToUInt64(Bytes, offset));
+        }
+
+        private void SetUInt64BE(int offset, ulong value)
+        {
+            FastBitConverter.GetBytes(Bytes, offset, SwapEndianness(value));
+        }
+
+        private int GetInt32BE(int offset)
+        {
+            return (int)GetUInt32BE(offset);
+        }
+
+        private uint GetUInt32BE(int offset)
+        {
+            return SwapEndianness(BitConverter.ToUInt32(Bytes, offset));
+        }
+
+        private static uint SwapEndianness(uint x)
+        {
+            return ((x & 0xff) << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | ((x & 0xff000000) >> 24);
+        }
+
+        private static ulong SwapEndianness(ulong x)
+        {
+            return ((ulong)SwapEndianness((uint)x) << 32) | SwapEndianness((uint)(x >> 32));
+        }
+    }
+
+    /// <summary>
+    /// Represents leap second warning from the server that instructs the client to add or remove leap second.
+    /// </summary>
+    /// <seealso cref="NtpPacket.LeapIndicator" />
+    public enum NtpLeapIndicator
+    {
+        /// <summary>
+        /// No leap second warning. No action required.
+        /// </summary>
+        NoWarning,
+
+        /// <summary>
+        /// Warns the client that the last minute of the current day has 61 seconds.
+        /// </summary>
+        LastMinuteHas61Seconds,
+
+        /// <summary>
+        /// Warns the client that the last minute of the current day has 59 seconds.
+        /// </summary>
+        LastMinuteHas59Seconds,
+
+        /// <summary>
+        /// Special value indicating that the server clock is unsynchronized and the returned time is unreliable.
+        /// </summary>
+        AlarmCondition
+    }
+
+    /// <summary>
+    /// Describes SNTP packet mode, i.e. client or server.
+    /// </summary>
+    /// <seealso cref="NtpPacket.Mode" />
+    public enum NtpMode
+    {
+        /// <summary>
+        /// Identifies client-to-server SNTP packet.
+        /// </summary>
+        Client = 3,
+
+        /// <summary>
+        /// Identifies server-to-client SNTP packet.
+        /// </summary>
+        Server = 4,
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NtpPacket.cs.meta

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+guid: 17522d9782736174d811ad894ecf20be
+MonoImporter:
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+  serializedVersion: 2
+  defaultReferences: []
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+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NtpRequest.cs

+using System;
+using System.Net;
+using System.Net.Sockets;
+
+#if NETSTANDARD || NETCOREAPP
+using System.Threading.Tasks;
+#endif
+
+namespace LiteNetLib.Utils
+{
+    /// <summary>
+    /// Make NTP request.
+    /// <para>
+    /// 1. Create the object by <see cref="Create(IPEndPoint,Action&lt;NtpPacket&gt;)"/> method. 
+    /// </para>
+    /// <para>
+    /// 2. Use <see cref="Send"/> method to send requests.
+    /// </para>
+    /// <para>
+    /// 3. Call <see cref="Close"/> to release the socket AFTER you have received the response or some timeout.
+    /// If you close the socket too early, you may miss the response.
+    /// </para>
+    /// </summary>
+    public sealed class NtpRequest : INetSocketListener
+    {
+        public const int DefaultPort = 123;
+
+        private readonly NetSocket _socket;
+        private readonly Action<NtpPacket> _onRequestComplete;
+        private readonly IPEndPoint _ntpEndPoint;
+
+        /// <summary>
+        /// Initialize object, open socket.
+        /// </summary>
+        /// <param name="endPoint">NTP Server endpoint</param>
+        /// <param name="onRequestComplete">callback (called from other thread!)</param>
+        private NtpRequest(IPEndPoint endPoint, Action<NtpPacket> onRequestComplete)
+        {
+            _ntpEndPoint = endPoint;
+            _onRequestComplete = onRequestComplete;
+
+            // Create and start socket
+            _socket = new NetSocket(this);
+            _socket.Bind(
+                IPAddress.Any, 
+                IPAddress.IPv6Any, 
+                0, 
+                false, 
+                endPoint.AddressFamily == AddressFamily.InterNetworkV6 ? IPv6Mode.SeparateSocket : IPv6Mode.Disabled);
+        }
+
+        /// <summary>
+        /// Create the requests for NTP server, open socket.
+        /// </summary>
+        /// <param name="endPoint">NTP Server address.</param>
+        /// <param name="onRequestComplete">callback (called from other thread!)</param>
+        public static NtpRequest Create(IPEndPoint endPoint, Action<NtpPacket> onRequestComplete)
+        {
+            return new NtpRequest(endPoint, onRequestComplete);
+        }
+
+        /// <summary>
+        /// Create the requests for NTP server (default port), open socket.
+        /// </summary>
+        /// <param name="ipAddress">NTP Server address.</param>
+        /// <param name="onRequestComplete">callback (called from other thread!)</param>
+        public static NtpRequest Create(IPAddress ipAddress, Action<NtpPacket> onRequestComplete)
+        {
+            IPEndPoint endPoint = new IPEndPoint(ipAddress, DefaultPort);
+            return Create(endPoint, onRequestComplete);
+        }
+
+        /// <summary>
+        /// Create the requests for NTP server, open socket.
+        /// </summary>
+        /// <param name="ntpServerAddress">NTP Server address.</param>
+        /// <param name="port">port</param>
+        /// <param name="onRequestComplete">callback (called from other thread!)</param>
+        public static NtpRequest Create(string ntpServerAddress, int port, Action<NtpPacket> onRequestComplete)
+        {
+            IPEndPoint endPoint = NetUtils.MakeEndPoint(ntpServerAddress, port);
+            return Create(endPoint, onRequestComplete);
+        }
+
+        /// <summary>
+        /// Create the requests for NTP server (default port), open socket.
+        /// </summary>
+        /// <param name="ntpServerAddress">NTP Server address.</param>
+        /// <param name="onRequestComplete">callback (called from other thread!)</param>
+        public static NtpRequest Create(string ntpServerAddress, Action<NtpPacket> onRequestComplete)
+        {
+            IPEndPoint endPoint = NetUtils.MakeEndPoint(ntpServerAddress, DefaultPort);
+            return Create(endPoint, onRequestComplete);
+        }
+
+#if NETSTANDARD || NETCOREAPP
+        /// <summary>
+        /// Requests asynchronously NTP server for time offset
+        /// </summary>
+        /// <param name="ntpServerAddress">NTP Server address.</param>
+        /// <returns>Scheduled task</returns>
+        public static async Task<NtpPacket> RequestAsync(string ntpServerAddress)
+        {
+            var t = new TaskCompletionSource<NtpPacket>();
+
+            await Task.Run(() =>
+            {
+                NtpRequest request = null;
+                request = Create(ntpServerAddress, (ntpPacket) =>
+                {
+                    request.Close();
+                    t.SetResult(ntpPacket);
+                });
+                request.Send();
+            });
+
+            return await t.Task;
+        }
+#endif
+
+        /// <summary>
+        /// Send request to the NTP server calls callback (if success).
+        /// In case of error the callback is called with null param.
+        /// </summary>
+        public void Send()
+        {
+            SocketError errorCode = 0;
+            var packet = new NtpPacket();
+            packet.ValidateRequest(); // not necessary
+            byte[] sendData = packet.Bytes;
+            var sendCount = _socket.SendTo(sendData, 0, sendData.Length, _ntpEndPoint, ref errorCode);
+            if (errorCode != 0 || sendCount != sendData.Length)
+            {
+                _onRequestComplete(null);
+            }
+        }
+
+        /// <summary>
+        /// Close socket.
+        /// </summary>
+        public void Close()
+        {
+            _socket.Close(false);
+        }
+
+        /// <summary>
+        /// Handle received data: transform bytes to NtpPacket, close socket and call the callback.
+        /// </summary>
+        void INetSocketListener.OnMessageReceived(byte[] data, int length, SocketError errorCode, IPEndPoint remoteEndPoint)
+        {
+            DateTime destinationTimestamp = DateTime.UtcNow;
+            if (!remoteEndPoint.Equals(_ntpEndPoint))
+                return;
+
+            if (length < 48)
+            {
+                NetDebug.Write(NetLogLevel.Trace, "NTP response too short: {}", length);
+                _onRequestComplete(null);
+                return;
+            }
+
+            NtpPacket packet = NtpPacket.FromServerResponse(data, destinationTimestamp);
+            try
+            {
+                packet.ValidateReply();
+            }
+            catch (InvalidOperationException ex)
+            {
+                NetDebug.Write(NetLogLevel.Trace, "NTP response error: {}", ex.Message);
+                packet = null;
+            }
+            _onRequestComplete(packet);
+        }
+    }
+}

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLib/Utils/NtpRequest.cs.meta

+fileFormatVersion: 2
+guid: ac0e7ca5f9a65c54b92bdfe59c6a5486
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/com.unity.multiplayer.transport.litenet/Runtime/LiteNetLibTransport.cs

+using LiteNetLib;
+using MLAPI.Transports;
+using MLAPI.Transports.Tasks;
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Net.Sockets;
+using UnityEngine;
+
+namespace LiteNetLibTransport
+{
+    public class LiteNetLibTransport : Transport, INetEventListener
+    {
+        private enum HostType
+        {
+            None,
+            Server,
+            Client
+        }
+
+        public struct LiteChannel
+        {
+            public byte number;
+            public DeliveryMethod method;
+        }
+
+        public struct Event
+        {
+            public NetEventType type;
+            public ulong clientId;
+            public string channelName;
+            public NetPacketReader packetReader;
+            public DateTime dateTime;
+        }
+
+        [Tooltip("The port to listen on (if server) or connect to (if client)")]
+        public ushort Port = 7777;
+        [Tooltip("The address to connect to as client; ignored if server")]
+        public string Address = "127.0.0.1";
+        [Tooltip("Interval between ping packets used for detecting latency and checking connection, in seconds")]
+        public float PingInterval = 1f;
+        [Tooltip("Maximum duration for a connection to survive without receiving packets, in seconds")]
+        public float DisconnectTimeout = 5f;
+        [Tooltip("Delay between connection attempts, in seconds")]
+        public float ReconnectDelay = 0.5f;
+        [Tooltip("Maximum connection attempts before client stops and reports a disconnection")]
+        public int MaxConnectAttempts = 10;
+        public TransportChannel[] channels = new TransportChannel[0];
+        [Tooltip("Size of default buffer for decoding incoming packets, in bytes")]
+        public int MessageBufferSize = 1024 * 5;
+        [Tooltip("Simulated chance for a packet to be \"lost\", from 0 (no simulation) to 100 percent")]
+        public int SimulatePacketLossChance = 0;
+        [Tooltip("Simulated minimum additional latency for packets in milliseconds (0 for no simulation)")]
+        public int SimulateMinLatency = 0;
+        [Tooltip("Simulated maximum additional latency for packets in milliseconds (0 for no simulation")]
+        public int SimulateMaxLatency = 0;
+
+        private readonly Dictionary<ulong, NetPeer> peers = new Dictionary<ulong, NetPeer>();
+        private readonly Dictionary<string, LiteChannel> liteChannels = new Dictionary<string, LiteChannel>();
+
+        private NetManager netManager;
+        private Queue<Event> eventQueue = new Queue<Event>();
+
+        private byte[] messageBuffer;
+        private WeakReference temporaryBufferReference;
+
+        public override ulong ServerClientId => 0;
+        private HostType hostType;
+        private static readonly ArraySegment<byte> emptyArraySegment = new ArraySegment<byte>();
+
+        private SocketTask connectTask;
+
+        private void OnValidate()
+        {
+            PingInterval = Math.Max(0, PingInterval);
+            DisconnectTimeout = Math.Max(0, DisconnectTimeout);
+            ReconnectDelay = Math.Max(0, ReconnectDelay);
+            MaxConnectAttempts = Math.Max(0, MaxConnectAttempts);
+            MessageBufferSize = Math.Max(0, MessageBufferSize);
+            SimulatePacketLossChance = Math.Min(100, Math.Max(0, SimulatePacketLossChance));
+            SimulateMinLatency = Math.Max(0, SimulateMinLatency);
+            SimulateMaxLatency = Math.Max(SimulateMinLatency, SimulateMaxLatency);
+        }
+
+        private void Update()
+        {
+            netManager?.PollEvents();
+        }
+
+        public override bool IsSupported => Application.platform != RuntimePlatform.WebGLPlayer;
+
+        public override void Send(ulong clientId, ArraySegment<byte> data, string channelName)
+        {
+            LiteChannel channel = liteChannels[channelName];
+
+            if (peers.ContainsKey(clientId))
+            {
+                peers[clientId].Send(data.Array, data.Offset, data.Count, channel.method);
+            }
+        }
+
+        public override NetEventType PollEvent(out ulong clientId, out string channelName, out ArraySegment<byte> payload, out float receiveTime)
+        {
+            payload = emptyArraySegment;
+            clientId = 0;
+            channelName = null;
+            receiveTime = Time.realtimeSinceStartup;
+
+            if (eventQueue.Count > 0)
+            {
+                Event @event = eventQueue.Dequeue();
+
+                clientId = @event.clientId;
+                channelName = @event.channelName;
+                receiveTime = Time.realtimeSinceStartup - ((float)DateTime.UtcNow.Subtract(@event.dateTime).TotalSeconds);
+
+                if (@event.packetReader != null)
+                {
+                    int size = @event.packetReader.UserDataSize;
+                    byte[] data = messageBuffer;
+
+                    if (size > messageBuffer.Length)
+                    {
+                        if (temporaryBufferReference != null && temporaryBufferReference.IsAlive && ((byte[])temporaryBufferReference.Target).Length >= size)
+                        {
+                            data = (byte[])temporaryBufferReference.Target;
+                        }
+                        else
+                        {
+                            data = new byte[size];
+                            temporaryBufferReference = new WeakReference(data);
+                        }
+                    }
+
+                    Buffer.BlockCopy(@event.packetReader.RawData, @event.packetReader.UserDataOffset, data, 0, size);
+
+                    payload = new ArraySegment<byte>(data, 0, size);
+                    @event.packetReader.Recycle();
+                }
+
+                return @event.type;
+            }
+
+            return NetEventType.Nothing;
+        }
+
+        public override SocketTasks StartClient()
+        {
+            SocketTask task = SocketTask.Working;
+
+            if (hostType != HostType.None)
+            {
+                throw new InvalidOperationException("Already started as " + hostType);
+            }
+
+            hostType = HostType.Client;
+
+            netManager.Start();
+
+            NetPeer peer = netManager.Connect(Address, Port, string.Empty);
+
+            if (peer.Id != 0)
+            {
+                throw new InvalidPacketException("Server peer did not have id 0: " + peer.Id);
+            }
+
+            peers[(ulong)peer.Id] = peer;
+
+            return task.AsTasks();
+        }
+
+        public override SocketTasks StartServer()
+        {
+            if (hostType != HostType.None)
+            {
+                throw new InvalidOperationException("Already started as " + hostType);
+            }
+
+            hostType = HostType.Server;
+
+            bool success = netManager.Start(Port);
+
+            return new SocketTask()
+            {
+                IsDone = true,
+                Message = null,
+                SocketError = SocketError.SocketError,
+                State = null,
+                Success = success,
+                TransportCode = -1,
+                TransportException = null
+            }.AsTasks();
+        }
+
+        public override void DisconnectRemoteClient(ulong clientId)
+        {
+            if (peers.ContainsKey(clientId))
+            {
+                peers[clientId].Disconnect();
+            }
+        }
+
+        public override void DisconnectLocalClient()
+        {
+            netManager.Flush();
+            netManager.DisconnectAll();
+            peers.Clear();
+        }
+
+        public override ulong GetCurrentRtt(ulong clientId)
+        {
+            if (!peers.ContainsKey(clientId))
+            {
+                return 0;
+            }
+
+            return (ulong)peers[clientId].Ping * 2;
+        }
+
+        public override void Shutdown()
+        {
+            netManager.Flush();
+            netManager.Stop();
+            peers.Clear();
+
+            hostType = HostType.None;
+        }
+
+        public override void Init()
+        {
+            liteChannels.Clear();
+            MapChannels(MLAPI_CHANNELS);
+            MapChannels(channels);
+            AddRpcResponseChannels();
+
+            if (liteChannels.Count > 64)
+            {
+                throw new InvalidOperationException("LiteNetLib supports up to 64 channels, got: " + liteChannels.Count);
+            }
+
+            messageBuffer = new byte[MessageBufferSize];
+
+            netManager = new NetManager(this)
+            {
+                PingInterval = SecondsToMilliseconds(PingInterval),
+                DisconnectTimeout = SecondsToMilliseconds(DisconnectTimeout),
+                ReconnectDelay = SecondsToMilliseconds(ReconnectDelay),
+                MaxConnectAttempts = MaxConnectAttempts,
+                SimulatePacketLoss = SimulatePacketLossChance > 0,
+                SimulationPacketLossChance = SimulatePacketLossChance,
+                SimulateLatency = SimulateMaxLatency > 0,
+                SimulationMinLatency = SimulateMinLatency,
+                SimulationMaxLatency = SimulateMaxLatency
+            };
+        }
+
+        private void MapChannels(TransportChannel[] channels)
+        {
+            byte id = (byte)liteChannels.Count;
+
+            for (int i = 0; i < channels.Length; i++)
+            {
+                liteChannels.Add(channels[i].Name, new LiteChannel()
+                {
+                    number = id++,
+                    method = ConvertChannelType(channels[i].Type)
+                });
+            }
+        }
+
+        private void AddRpcResponseChannels()
+        {
+            byte id = (byte)liteChannels.Count;
+
+            foreach (DeliveryMethod method in Enum.GetValues(typeof(DeliveryMethod)) as DeliveryMethod[])
+            {
+                liteChannels.Add("LITENETLIB_RESPONSE_" + method.ToString(), new LiteChannel()
+                {
+                    number = id++,
+                    method = method
+                });
+            }
+        }
+
+        private DeliveryMethod ConvertChannelType(ChannelType type)
+        {
+            switch (type)
+            {
+                case ChannelType.Unreliable:
+                    {
+                        return DeliveryMethod.Unreliable;
+                    }
+                case ChannelType.UnreliableSequenced:
+                    {
+                        return DeliveryMethod.Sequenced;
+                    }
+                case ChannelType.Reliable:
+                    {
+                        return DeliveryMethod.ReliableUnordered;
+                    }
+                case ChannelType.ReliableSequenced:
+                    {
+                        return DeliveryMethod.ReliableOrdered;
+                    }
+                case ChannelType.ReliableFragmentedSequenced:
+                    {
+                        return DeliveryMethod.ReliableOrdered;
+                    }
+                default:
+                    {
+                        throw new ArgumentOutOfRangeException(nameof(type), type, null);
+                    }
+            }
+        }
+
+        void INetEventListener.OnPeerConnected(NetPeer peer)
+        {
+            if (connectTask != null)
+            {
+                connectTask.Success = true;
+                connectTask.IsDone = true;
+                connectTask = null;
+            }
+
+            Event @event = new Event()
+            {
+                dateTime = DateTime.UtcNow,
+                type = NetEventType.Connect,
+                clientId = GetMLAPIClientId(peer)
+            };
+
+            peers[@event.clientId] = peer;
+
+            eventQueue.Enqueue(@event);
+        }
+
+        void INetEventListener.OnPeerDisconnected(NetPeer peer, DisconnectInfo disconnectInfo)
+        {
+            if (connectTask != null)
+            {
+                connectTask.Success = false;
+                connectTask.IsDone = true;
+                connectTask = null;
+            }
+
+            Event @event = new Event()
+            {
+                dateTime = DateTime.UtcNow,
+                type = NetEventType.Disconnect,
+                clientId = GetMLAPIClientId(peer)
+            };
+
+            peers.Remove(@event.clientId);
+
+            eventQueue.Enqueue(@event);
+        }
+
+        void INetEventListener.OnNetworkError(IPEndPoint endPoint, SocketError socketError)
+        {
+            // Ignore
+            if (connectTask != null)
+            {
+                connectTask.SocketError = socketError;
+                connectTask.IsDone = true;
+                connectTask = null;
+            }
+        }
+
+        void INetEventListener.OnNetworkReceive(NetPeer peer, NetPacketReader reader, DeliveryMethod deliveryMethod)
+        {
+            Event @event = new Event()
+            {
+                dateTime = DateTime.UtcNow,
+                type = NetEventType.Data,
+                clientId = GetMLAPIClientId(peer),
+                packetReader = reader,
+                channelName = "LITENETLIB_RESPONSE_" + deliveryMethod.ToString()
+            };
+
+            eventQueue.Enqueue(@event);
+        }
+
+        void INetEventListener.OnNetworkReceiveUnconnected(IPEndPoint remoteEndPoint, NetPacketReader reader, UnconnectedMessageType messageType)
+        {
+            // Ignore
+        }
+
+        void INetEventListener.OnNetworkLatencyUpdate(NetPeer peer, int latency)
+        {
+            // Ignore
+        }
+
+        void INetEventListener.OnConnectionRequest(ConnectionRequest request)
+        {
+            request.Accept();
+        }
+
+        private ulong GetMLAPIClientId(NetPeer peer)
+        {
+            ulong clientId = (ulong)peer.Id;
+
+            if (hostType == HostType.Server)
+            {
+                clientId += 1;
+            }
+
+            return clientId;
+        }
+
+        private static int SecondsToMilliseconds(float seconds)
+        {
+            return (int)Mathf.Ceil(seconds * 1000);
+        }
+    }
+}

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+  "unityRelease": "8f1",
+  "description": "LiteNet Transport for MLAPI",
+  "keywords": [
+    "unity"
+  ],
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