diff options
Diffstat (limited to 'Emby.Server.Implementations/Net')
| -rw-r--r-- | Emby.Server.Implementations/Net/SocketFactory.cs | 75 | ||||
| -rw-r--r-- | Emby.Server.Implementations/Net/UdpSocket.cs | 267 |
2 files changed, 34 insertions, 308 deletions
diff --git a/Emby.Server.Implementations/Net/SocketFactory.cs b/Emby.Server.Implementations/Net/SocketFactory.cs index 303875df5..51e92953d 100644 --- a/Emby.Server.Implementations/Net/SocketFactory.cs +++ b/Emby.Server.Implementations/Net/SocketFactory.cs @@ -10,60 +10,63 @@ namespace Emby.Server.Implementations.Net public class SocketFactory : ISocketFactory { /// <inheritdoc /> - public ISocket CreateUdpBroadcastSocket(int localPort) + public Socket CreateUdpBroadcastSocket(int localPort) { if (localPort < 0) { throw new ArgumentException("localPort cannot be less than zero.", nameof(localPort)); } - var retVal = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); + var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); try { - retVal.EnableBroadcast = true; - retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); - retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1); + socket.EnableBroadcast = true; + socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); + socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1); + socket.Bind(new IPEndPoint(IPAddress.Any, localPort)); - return new UdpSocket(retVal, localPort, IPAddress.Any); + return socket; } catch { - retVal?.Dispose(); + socket?.Dispose(); throw; } } /// <inheritdoc /> - public ISocket CreateSsdpUdpSocket(IPAddress localIp, int localPort) + public Socket CreateSsdpUdpSocket(IPData bindInterface, int localPort) { + ArgumentNullException.ThrowIfNull(bindInterface.Address); + if (localPort < 0) { throw new ArgumentException("localPort cannot be less than zero.", nameof(localPort)); } - var retVal = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); + var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); try { - retVal.EnableBroadcast = true; - retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); - retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 4); + socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); + socket.Bind(new IPEndPoint(bindInterface.Address, localPort)); - retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(IPAddress.Parse("239.255.255.250"), localIp)); - return new UdpSocket(retVal, localPort, localIp); + return socket; } catch { - retVal?.Dispose(); + socket?.Dispose(); throw; } } /// <inheritdoc /> - public ISocket CreateUdpMulticastSocket(IPAddress ipAddress, int multicastTimeToLive, int localPort) + public Socket CreateUdpMulticastSocket(IPAddress multicastAddress, IPData bindInterface, int multicastTimeToLive, int localPort) { - ArgumentNullException.ThrowIfNull(ipAddress); + var bindIPAddress = bindInterface.Address; + ArgumentNullException.ThrowIfNull(multicastAddress); + ArgumentNullException.ThrowIfNull(bindIPAddress); if (multicastTimeToLive <= 0) { @@ -75,36 +78,26 @@ namespace Emby.Server.Implementations.Net throw new ArgumentException("localPort cannot be less than zero.", nameof(localPort)); } - var retVal = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); - - retVal.ExclusiveAddressUse = false; + var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp); try { - // seeing occasional exceptions thrown on qnap - // System.Net.Sockets.SocketException (0x80004005): Protocol not available - retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); - } - catch (SocketException) - { - } - - try - { - retVal.EnableBroadcast = true; - // retVal.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true); - retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, multicastTimeToLive); - - var localIp = IPAddress.Any; - - retVal.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(ipAddress, localIp)); - retVal.MulticastLoopback = true; - - return new UdpSocket(retVal, localPort, localIp); + var interfaceIndex = bindInterface.Index; + var interfaceIndexSwapped = (int)IPAddress.HostToNetworkOrder(interfaceIndex); + + socket.MulticastLoopback = false; + socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true); + socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.PacketInformation, true); + socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, multicastTimeToLive); + socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastInterface, interfaceIndexSwapped); + socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(multicastAddress, interfaceIndex)); + socket.Bind(new IPEndPoint(multicastAddress, localPort)); + + return socket; } catch { - retVal?.Dispose(); + socket?.Dispose(); throw; } diff --git a/Emby.Server.Implementations/Net/UdpSocket.cs b/Emby.Server.Implementations/Net/UdpSocket.cs deleted file mode 100644 index 577b79283..000000000 --- a/Emby.Server.Implementations/Net/UdpSocket.cs +++ /dev/null @@ -1,267 +0,0 @@ -#nullable disable - -#pragma warning disable CS1591 - -using System; -using System.Net; -using System.Net.Sockets; -using System.Threading; -using System.Threading.Tasks; -using MediaBrowser.Model.Net; - -namespace Emby.Server.Implementations.Net -{ - // THIS IS A LINKED FILE - SHARED AMONGST MULTIPLE PLATFORMS - // Be careful to check any changes compile and work for all platform projects it is shared in. - - public sealed class UdpSocket : ISocket, IDisposable - { - private readonly int _localPort; - - private readonly SocketAsyncEventArgs _receiveSocketAsyncEventArgs = new SocketAsyncEventArgs() - { - SocketFlags = SocketFlags.None - }; - - private readonly SocketAsyncEventArgs _sendSocketAsyncEventArgs = new SocketAsyncEventArgs() - { - SocketFlags = SocketFlags.None - }; - - private Socket _socket; - private bool _disposed = false; - private TaskCompletionSource<SocketReceiveResult> _currentReceiveTaskCompletionSource; - private TaskCompletionSource<int> _currentSendTaskCompletionSource; - - public UdpSocket(Socket socket, int localPort, IPAddress ip) - { - ArgumentNullException.ThrowIfNull(socket); - - _socket = socket; - _localPort = localPort; - LocalIPAddress = ip; - - _socket.Bind(new IPEndPoint(ip, _localPort)); - - InitReceiveSocketAsyncEventArgs(); - } - - public UdpSocket(Socket socket, IPEndPoint endPoint) - { - ArgumentNullException.ThrowIfNull(socket); - - _socket = socket; - _socket.Connect(endPoint); - - InitReceiveSocketAsyncEventArgs(); - } - - public Socket Socket => _socket; - - public IPAddress LocalIPAddress { get; } - - private void InitReceiveSocketAsyncEventArgs() - { - var receiveBuffer = new byte[8192]; - _receiveSocketAsyncEventArgs.SetBuffer(receiveBuffer, 0, receiveBuffer.Length); - _receiveSocketAsyncEventArgs.Completed += OnReceiveSocketAsyncEventArgsCompleted; - - var sendBuffer = new byte[8192]; - _sendSocketAsyncEventArgs.SetBuffer(sendBuffer, 0, sendBuffer.Length); - _sendSocketAsyncEventArgs.Completed += OnSendSocketAsyncEventArgsCompleted; - } - - private void OnReceiveSocketAsyncEventArgsCompleted(object sender, SocketAsyncEventArgs e) - { - var tcs = _currentReceiveTaskCompletionSource; - if (tcs is not null) - { - _currentReceiveTaskCompletionSource = null; - - if (e.SocketError == SocketError.Success) - { - tcs.TrySetResult(new SocketReceiveResult - { - Buffer = e.Buffer, - ReceivedBytes = e.BytesTransferred, - RemoteEndPoint = e.RemoteEndPoint as IPEndPoint, - LocalIPAddress = LocalIPAddress - }); - } - else - { - tcs.TrySetException(new SocketException((int)e.SocketError)); - } - } - } - - private void OnSendSocketAsyncEventArgsCompleted(object sender, SocketAsyncEventArgs e) - { - var tcs = _currentSendTaskCompletionSource; - if (tcs is not null) - { - _currentSendTaskCompletionSource = null; - - if (e.SocketError == SocketError.Success) - { - tcs.TrySetResult(e.BytesTransferred); - } - else - { - tcs.TrySetException(new SocketException((int)e.SocketError)); - } - } - } - - public IAsyncResult BeginReceive(byte[] buffer, int offset, int count, AsyncCallback callback) - { - ThrowIfDisposed(); - - EndPoint receivedFromEndPoint = new IPEndPoint(IPAddress.Any, 0); - - return _socket.BeginReceiveFrom(buffer, offset, count, SocketFlags.None, ref receivedFromEndPoint, callback, buffer); - } - - public int Receive(byte[] buffer, int offset, int count) - { - ThrowIfDisposed(); - - return _socket.Receive(buffer, 0, buffer.Length, SocketFlags.None); - } - - public SocketReceiveResult EndReceive(IAsyncResult result) - { - ThrowIfDisposed(); - - var sender = new IPEndPoint(IPAddress.Any, 0); - var remoteEndPoint = (EndPoint)sender; - - var receivedBytes = _socket.EndReceiveFrom(result, ref remoteEndPoint); - - var buffer = (byte[])result.AsyncState; - - return new SocketReceiveResult - { - ReceivedBytes = receivedBytes, - RemoteEndPoint = (IPEndPoint)remoteEndPoint, - Buffer = buffer, - LocalIPAddress = LocalIPAddress - }; - } - - public Task<SocketReceiveResult> ReceiveAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) - { - ThrowIfDisposed(); - - var taskCompletion = new TaskCompletionSource<SocketReceiveResult>(TaskCreationOptions.RunContinuationsAsynchronously); - bool isResultSet = false; - - Action<IAsyncResult> callback = callbackResult => - { - try - { - if (!isResultSet) - { - isResultSet = true; - taskCompletion.TrySetResult(EndReceive(callbackResult)); - } - } - catch (Exception ex) - { - taskCompletion.TrySetException(ex); - } - }; - - var result = BeginReceive(buffer, offset, count, new AsyncCallback(callback)); - - if (result.CompletedSynchronously) - { - callback(result); - return taskCompletion.Task; - } - - cancellationToken.Register(() => taskCompletion.TrySetCanceled()); - - return taskCompletion.Task; - } - - public Task SendToAsync(byte[] buffer, int offset, int bytes, IPEndPoint endPoint, CancellationToken cancellationToken) - { - ThrowIfDisposed(); - - var taskCompletion = new TaskCompletionSource<int>(TaskCreationOptions.RunContinuationsAsynchronously); - bool isResultSet = false; - - Action<IAsyncResult> callback = callbackResult => - { - try - { - if (!isResultSet) - { - isResultSet = true; - taskCompletion.TrySetResult(EndSendTo(callbackResult)); - } - } - catch (Exception ex) - { - taskCompletion.TrySetException(ex); - } - }; - - var result = BeginSendTo(buffer, offset, bytes, endPoint, new AsyncCallback(callback), null); - - if (result.CompletedSynchronously) - { - callback(result); - return taskCompletion.Task; - } - - cancellationToken.Register(() => taskCompletion.TrySetCanceled()); - - return taskCompletion.Task; - } - - public IAsyncResult BeginSendTo(byte[] buffer, int offset, int size, IPEndPoint endPoint, AsyncCallback callback, object state) - { - ThrowIfDisposed(); - - return _socket.BeginSendTo(buffer, offset, size, SocketFlags.None, endPoint, callback, state); - } - - public int EndSendTo(IAsyncResult result) - { - ThrowIfDisposed(); - - return _socket.EndSendTo(result); - } - - private void ThrowIfDisposed() - { - if (_disposed) - { - throw new ObjectDisposedException(nameof(UdpSocket)); - } - } - - /// <inheritdoc /> - public void Dispose() - { - if (_disposed) - { - return; - } - - _socket?.Dispose(); - _receiveSocketAsyncEventArgs.Dispose(); - _sendSocketAsyncEventArgs.Dispose(); - _currentReceiveTaskCompletionSource?.TrySetCanceled(); - _currentSendTaskCompletionSource?.TrySetCanceled(); - - _socket = null; - _currentReceiveTaskCompletionSource = null; - _currentSendTaskCompletionSource = null; - - _disposed = true; - } - } -} |