Fix GetAddrInfoWithOptions and some sockets issues (#2936)

* Fix GetAddrInfoWithOptions and some sockets issues

* Was not supposed to remove this log

Ryujinx.HLE/HLEConfiguration.cs

@@ -98,6 +98,11 @@ namespace Ryujinx.HLE
         /// </summary>
         internal readonly bool EnablePtc;
 
+        /// <summary>
+        /// Control if the guest application should be told that there is a Internet connection available.
+        /// </summary>
+        internal readonly bool EnableInternetAccess;
+
         /// <summary>
         /// Control LibHac's integrity check level.
         /// </summary>
@@ -122,8 +127,8 @@ namespace Ryujinx.HLE
         /// <remarks>This cannot be changed after <see cref="Switch"/> instantiation.</remarks>
         internal readonly string TimeZone;
 
-
         /// <summary>
+        /// Type of the memory manager used on CPU emulation.
         /// </summary>
         public MemoryManagerMode MemoryManagerMode { internal get; set; }
 
@@ -163,6 +168,7 @@ namespace Ryujinx.HLE
                                 bool                   enableVsync,
                                 bool                   enableDockedMode,
                                 bool                   enablePtc,
+                                bool                   enableInternetAccess,
                                 IntegrityCheckLevel    fsIntegrityCheckLevel,
                                 int                    fsGlobalAccessLogMode,
                                 long                   systemTimeOffset,
@@ -186,6 +192,7 @@ namespace Ryujinx.HLE
             EnableVsync            = enableVsync;
             EnableDockedMode       = enableDockedMode;
             EnablePtc              = enablePtc;
+            EnableInternetAccess   = enableInternetAccess;
             FsIntegrityCheckLevel  = fsIntegrityCheckLevel;
             FsGlobalAccessLogMode  = fsGlobalAccessLogMode;
             SystemTimeOffset       = systemTimeOffset;

Ryujinx.HLE/HOS/Services/Nifm/StaticService/IRequest.cs

@@ -8,6 +8,13 @@ namespace Ryujinx.HLE.HOS.Services.Nifm.StaticService
 {
     class IRequest : IpcService
     {
+        private enum RequestState
+        {
+            Error = 1,
+            OnHold = 2,
+            Available = 3
+        }
+
         private KEvent _event0;
         private KEvent _event1;
 
@@ -28,7 +35,11 @@ namespace Ryujinx.HLE.HOS.Services.Nifm.StaticService
         // GetRequestState() -> u32
         public ResultCode GetRequestState(ServiceCtx context)
         {
-            context.ResponseData.Write(1);
+            RequestState requestState = context.Device.Configuration.EnableInternetAccess
+                ? RequestState.Available
+                : RequestState.Error;
+
+            context.ResponseData.Write((int)requestState);
 
             Logger.Stub?.PrintStub(LogClass.ServiceNifm);
 

Ryujinx.HLE/HOS/Services/Sockets/Bsd/IClient.cs

@@ -106,7 +106,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
             _isPrivileged = isPrivileged;
         }
 
-        private LinuxError ConvertError(WsaError errorCode)
+        private static LinuxError ConvertError(WsaError errorCode)
         {
             if (!_errorMap.TryGetValue(errorCode, out LinuxError errno))
             {
@@ -116,6 +116,56 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
             return errno;
         }
 
+        private static SocketFlags ConvertBsdSocketFlags(BsdSocketFlags bsdSocketFlags)
+        {
+            BsdSocketFlags SupportedFlags =
+                BsdSocketFlags.Oob |
+                BsdSocketFlags.Peek |
+                BsdSocketFlags.DontRoute |
+                BsdSocketFlags.Trunc |
+                BsdSocketFlags.CTrunc;
+
+            SocketFlags socketFlags = SocketFlags.None;
+
+            if (bsdSocketFlags.HasFlag(BsdSocketFlags.Oob))
+            {
+                socketFlags |= SocketFlags.OutOfBand;
+            }
+
+            if (bsdSocketFlags.HasFlag(BsdSocketFlags.Peek))
+            {
+                socketFlags |= SocketFlags.Peek;
+            }
+
+            if (bsdSocketFlags.HasFlag(BsdSocketFlags.DontRoute))
+            {
+                socketFlags |= SocketFlags.DontRoute;
+            }
+
+            if (bsdSocketFlags.HasFlag(BsdSocketFlags.Trunc))
+            {
+                socketFlags |= SocketFlags.Truncated;
+            }
+
+            if (bsdSocketFlags.HasFlag(BsdSocketFlags.CTrunc))
+            {
+                socketFlags |= SocketFlags.ControlDataTruncated;
+            }
+
+            bsdSocketFlags &= ~(BsdSocketFlags.Oob |
+                BsdSocketFlags.Peek |
+                BsdSocketFlags.DontRoute |
+                BsdSocketFlags.Trunc |
+                BsdSocketFlags.CTrunc);
+
+            if (bsdSocketFlags != BsdSocketFlags.None)
+            {
+                Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported socket flags: {bsdSocketFlags}");
+            }
+
+            return socketFlags;
+        }
+
         private ResultCode WriteWinSock2Error(ServiceCtx context, WsaError errorCode)
         {
             return WriteBsdResult(context, -1, ConvertError(errorCode));
@@ -463,8 +513,8 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
         // Recv(u32 socket, u32 flags) -> (i32 ret, u32 bsd_errno, array<i8, 0x22> message)
         public ResultCode Recv(ServiceCtx context)
         {
-            int         socketFd    = context.RequestData.ReadInt32();
+            int            socketFd    = context.RequestData.ReadInt32();
-            SocketFlags socketFlags = (SocketFlags)context.RequestData.ReadInt32();
+            BsdSocketFlags socketFlags = (BsdSocketFlags)context.RequestData.ReadInt32();
 
             (ulong receivePosition, ulong receiveLength) = context.Request.GetBufferType0x22();
 
@@ -474,18 +524,11 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             if (socket != null)
             {
-                if (socketFlags != SocketFlags.None && (socketFlags & SocketFlags.OutOfBand) == 0
-                    && (socketFlags & SocketFlags.Peek) == 0)
-                {
-                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Recv flags: {socketFlags}");
-                    return WriteBsdResult(context, -1, LinuxError.EOPNOTSUPP);
-                }
-
                 byte[] receivedBuffer = new byte[receiveLength];
 
                 try
                 {
-                    result = socket.Handle.Receive(receivedBuffer, socketFlags);
+                    result = socket.Handle.Receive(receivedBuffer, ConvertBsdSocketFlags(socketFlags));
                     errno  = SetResultErrno(socket.Handle, result);
 
                     context.Memory.Write(receivePosition, receivedBuffer);
@@ -503,8 +546,8 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
         // RecvFrom(u32 sock, u32 flags) -> (i32 ret, u32 bsd_errno, u32 addrlen, buffer<i8, 0x22, 0> message, buffer<nn::socket::sockaddr_in, 0x22, 0x10>)
         public ResultCode RecvFrom(ServiceCtx context)
         {
-            int         socketFd    = context.RequestData.ReadInt32();
+            int            socketFd    = context.RequestData.ReadInt32();
-            SocketFlags socketFlags = (SocketFlags)context.RequestData.ReadInt32();
+            BsdSocketFlags socketFlags = (BsdSocketFlags)context.RequestData.ReadInt32();
 
             (ulong receivePosition,     ulong receiveLength)   = context.Request.GetBufferType0x22();
             (ulong sockAddrOutPosition, ulong sockAddrOutSize) = context.Request.GetBufferType0x22(1);
@@ -515,20 +558,12 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             if (socket != null)
             {
-                if (socketFlags != SocketFlags.None && (socketFlags & SocketFlags.OutOfBand) == 0
-                    && (socketFlags & SocketFlags.Peek) == 0)
-                {
-                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Recv flags: {socketFlags}");
-
-                    return WriteBsdResult(context, -1, LinuxError.EOPNOTSUPP);
-                }
-
                 byte[]   receivedBuffer = new byte[receiveLength];
                 EndPoint endPoint       = new IPEndPoint(IPAddress.Any, 0);
 
                 try
                 {
-                    result = socket.Handle.ReceiveFrom(receivedBuffer, receivedBuffer.Length, socketFlags, ref endPoint);
+                    result = socket.Handle.ReceiveFrom(receivedBuffer, receivedBuffer.Length, ConvertBsdSocketFlags(socketFlags), ref endPoint);
                     errno  = SetResultErrno(socket.Handle, result);
 
                     context.Memory.Write(receivePosition, receivedBuffer);
@@ -547,8 +582,8 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
         // Send(u32 socket, u32 flags, buffer<i8, 0x21, 0>) -> (i32 ret, u32 bsd_errno)
         public ResultCode Send(ServiceCtx context)
         {
-            int         socketFd    = context.RequestData.ReadInt32();
+            int            socketFd    = context.RequestData.ReadInt32();
-            SocketFlags socketFlags = (SocketFlags)context.RequestData.ReadInt32();
+            BsdSocketFlags socketFlags = (BsdSocketFlags)context.RequestData.ReadInt32();
 
             (ulong sendPosition, ulong sendSize) = context.Request.GetBufferType0x21();
 
@@ -558,21 +593,13 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             if (socket != null)
             {
-                if (socketFlags != SocketFlags.None && socketFlags != SocketFlags.OutOfBand
-                    && socketFlags != SocketFlags.Peek && socketFlags != SocketFlags.DontRoute)
-                {
-                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Send flags: {socketFlags}");
-
-                    return WriteBsdResult(context, -1, LinuxError.EOPNOTSUPP);
-                }
-
                 byte[] sendBuffer = new byte[sendSize];
 
                 context.Memory.Read(sendPosition, sendBuffer);
 
                 try
                 {
-                    result = socket.Handle.Send(sendBuffer, socketFlags);
+                    result = socket.Handle.Send(sendBuffer, ConvertBsdSocketFlags(socketFlags));
                     errno  = SetResultErrno(socket.Handle, result);
                 }
                 catch (SocketException exception)
@@ -589,8 +616,8 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
         // SendTo(u32 socket, u32 flags, buffer<i8, 0x21, 0>, buffer<nn::socket::sockaddr_in, 0x21, 0x10>) -> (i32 ret, u32 bsd_errno)
         public ResultCode SendTo(ServiceCtx context)
         {
-            int         socketFd    = context.RequestData.ReadInt32();
+            int            socketFd    = context.RequestData.ReadInt32();
-            SocketFlags socketFlags = (SocketFlags)context.RequestData.ReadInt32();
+            BsdSocketFlags socketFlags = (BsdSocketFlags)context.RequestData.ReadInt32();
 
             (ulong sendPosition,   ulong sendSize)   = context.Request.GetBufferType0x21();
             (ulong bufferPosition, ulong bufferSize) = context.Request.GetBufferType0x21(1);
@@ -601,14 +628,6 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             if (socket != null)
             {
-                if (socketFlags != SocketFlags.None && socketFlags != SocketFlags.OutOfBand
-                    && socketFlags != SocketFlags.Peek && socketFlags != SocketFlags.DontRoute)
-                {
-                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported Send flags: {socketFlags}");
-
-                    return WriteBsdResult(context, -1, LinuxError.EOPNOTSUPP);
-                }
-
                 byte[] sendBuffer = new byte[sendSize];
 
                 context.Memory.Read(sendPosition, sendBuffer);
@@ -617,7 +636,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
                 try
                 {
-                    result = socket.Handle.SendTo(sendBuffer, sendBuffer.Length, socketFlags, endPoint);
+                    result = socket.Handle.SendTo(sendBuffer, sendBuffer.Length, ConvertBsdSocketFlags(socketFlags), endPoint);
                     errno  = SetResultErrno(socket.Handle, result);
                 }
                 catch (SocketException exception)
@@ -737,7 +756,14 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
                 }
                 catch (SocketException exception)
                 {
-                    errno = ConvertError((WsaError)exception.ErrorCode);
+                    if (!socket.Handle.Blocking && exception.ErrorCode == (int)WsaError.WSAEWOULDBLOCK)
+                    {
+                        errno = LinuxError.EINPROGRESS;
+                    }
+                    else
+                    {
+                        errno = ConvertError((WsaError)exception.ErrorCode);
+                    }
                 }
             }
 
@@ -794,9 +820,9 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
         // GetSockOpt(u32 socket, u32 level, u32 option_name) -> (i32 ret, u32 bsd_errno, u32, buffer<unknown, 0x22, 0>)
         public ResultCode GetSockOpt(ServiceCtx context)
         {
-            int socketFd   = context.RequestData.ReadInt32();
+            int socketFd                 = context.RequestData.ReadInt32();
-            int level      = context.RequestData.ReadInt32();
+            SocketOptionLevel level      = (SocketOptionLevel)context.RequestData.ReadInt32();
-            int optionName = context.RequestData.ReadInt32();
+            SocketOptionName  optionName = (SocketOptionName)context.RequestData.ReadInt32();
 
             (ulong bufferPosition, ulong bufferSize) = context.Request.GetBufferType0x22();
 
@@ -805,16 +831,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             if (socket != null)
             {
-                errno = LinuxError.ENOPROTOOPT;
+                errno = HandleGetSocketOption(context, socket, optionName, level, bufferPosition, bufferSize);
-
-                if (level == 0xFFFF)
-                {
-                    errno = HandleGetSocketOption(context, socket, (SocketOptionName)optionName, bufferPosition, bufferSize);
-                }
-                else
-                {
-                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported GetSockOpt Level: {(SocketOptionLevel)level}");
-                }
             }
 
             return WriteBsdResult(context, 0, errno);
@@ -916,7 +933,13 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
             return WriteBsdResult(context, result, errno);
         }
 
-        private LinuxError HandleGetSocketOption(ServiceCtx context, BsdSocket socket, SocketOptionName optionName, ulong optionValuePosition, ulong optionValueSize)
+        private static LinuxError HandleGetSocketOption(
+            ServiceCtx context,
+            BsdSocket socket,
+            SocketOptionName optionName,
+            SocketOptionLevel level,
+            ulong optionValuePosition,
+            ulong optionValueSize)
         {
             try
             {
@@ -936,19 +959,19 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
                     case SocketOptionName.SendTimeout:
                     case SocketOptionName.Type:
                     case SocketOptionName.Linger:
-                        socket.Handle.GetSocketOption(SocketOptionLevel.Socket, optionName, optionValue);
+                        socket.Handle.GetSocketOption(level, optionName, optionValue);
                         context.Memory.Write(optionValuePosition, optionValue);
 
                         return LinuxError.SUCCESS;
 
                     case (SocketOptionName)0x200:
-                        socket.Handle.GetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, optionValue);
+                        socket.Handle.GetSocketOption(level, SocketOptionName.ReuseAddress, optionValue);
                         context.Memory.Write(optionValuePosition, optionValue);
 
                         return LinuxError.SUCCESS;
 
                     default:
-                        Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported SetSockOpt OptionName: {optionName}");
+                        Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported GetSockOpt OptionName: {optionName}");
 
                         return LinuxError.EOPNOTSUPP;
                 }
@@ -959,7 +982,13 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
             }
         }
 
-        private LinuxError HandleSetSocketOption(ServiceCtx context, BsdSocket socket, SocketOptionName optionName, ulong optionValuePosition, ulong optionValueSize)
+        private static LinuxError HandleSetSocketOption(
+            ServiceCtx context,
+            BsdSocket socket,
+            SocketOptionName optionName,
+            SocketOptionLevel level,
+            ulong optionValuePosition,
+            ulong optionValueSize)
         {
             try
             {
@@ -977,17 +1006,17 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
                     case SocketOptionName.SendTimeout:
                     case SocketOptionName.Type:
                     case SocketOptionName.ReuseAddress:
-                        socket.Handle.SetSocketOption(SocketOptionLevel.Socket, optionName, context.Memory.Read<int>((ulong)optionValuePosition));
+                        socket.Handle.SetSocketOption(level, optionName, context.Memory.Read<int>((ulong)optionValuePosition));
 
                         return LinuxError.SUCCESS;
 
                     case (SocketOptionName)0x200:
-                        socket.Handle.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, context.Memory.Read<int>((ulong)optionValuePosition));
+                        socket.Handle.SetSocketOption(level, SocketOptionName.ReuseAddress, context.Memory.Read<int>((ulong)optionValuePosition));
 
                         return LinuxError.SUCCESS;
 
                     case SocketOptionName.Linger:
-                        socket.Handle.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger,
+                        socket.Handle.SetSocketOption(level, SocketOptionName.Linger,
                             new LingerOption(context.Memory.Read<int>((ulong)optionValuePosition) != 0, context.Memory.Read<int>((ulong)optionValuePosition + 4)));
 
                         return LinuxError.SUCCESS;
@@ -1008,9 +1037,9 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
         // SetSockOpt(u32 socket, u32 level, u32 option_name, buffer<unknown, 0x21, 0> option_value) -> (i32 ret, u32 bsd_errno)
         public ResultCode SetSockOpt(ServiceCtx context)
         {
-            int socketFd   = context.RequestData.ReadInt32();
+            int               socketFd   = context.RequestData.ReadInt32();
-            int level      = context.RequestData.ReadInt32();
+            SocketOptionLevel level      = (SocketOptionLevel)context.RequestData.ReadInt32();
-            int optionName = context.RequestData.ReadInt32();
+            SocketOptionName  optionName = (SocketOptionName)context.RequestData.ReadInt32();
 
             (ulong bufferPos, ulong bufferSize) = context.Request.GetBufferType0x21();
 
@@ -1019,16 +1048,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             if (socket != null)
             {
-                errno = LinuxError.ENOPROTOOPT;
+                errno = HandleSetSocketOption(context, socket, optionName, level, bufferPos, bufferSize);
-
-                if (level == 0xFFFF)
-                {
-                    errno = HandleSetSocketOption(context, socket, (SocketOptionName)optionName, bufferPos, bufferSize);
-                }
-                else
-                {
-                    Logger.Warning?.Print(LogClass.ServiceBsd, $"Unsupported SetSockOpt Level: {(SocketOptionLevel)level}");
-                }
             }
 
             return WriteBsdResult(context, 0, errno);

Ryujinx.HLE/HOS/Services/Sockets/Bsd/Types/BsdSocketFlags.cs

@@ -0,0 +1,24 @@
+using System.Net.Sockets;
+
+namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
+{
+    enum BsdSocketFlags
+    {
+        None = 0,
+        Oob = 0x1,
+        Peek = 0x2,
+        DontRoute = 0x4,
+        Eor = 0x8,
+        Trunc = 0x10,
+        CTrunc = 0x20,
+        WaitAll = 0x40,
+        DontWait = 0x80,
+        Eof = 0x100,
+        Notification = 0x2000,
+        Nbio = 0x4000,
+        Compat = 0x8000,
+        SoCallbck = 0x10000,
+        NoSignal = 0x20000,
+        CMsgCloExec = 0x40000
+    }
+}

Ryujinx.HLE/HOS/Services/Sockets/Sfdnsres/IResolver.cs

@@ -155,7 +155,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
             ulong responseBufferPosition = context.Request.ReceiveBuff[0].Position;
             ulong responseBufferSize     = context.Request.ReceiveBuff[0].Size;
 
-            return GetAddrInfoRequestImpl(context, responseBufferPosition, responseBufferSize, 0, 0);
+            return GetAddrInfoRequestImpl(context, responseBufferPosition, responseBufferSize, false, 0, 0);
         }
 
         [CommandHipc(8)]
@@ -213,7 +213,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
             (ulong responseBufferPosition, ulong responseBufferSize) = context.Request.GetBufferType0x22();
             (ulong optionsBufferPosition,  ulong optionsBufferSize)  = context.Request.GetBufferType0x21();
 
-            return GetAddrInfoRequestImpl(context, responseBufferPosition, responseBufferSize, optionsBufferPosition, optionsBufferSize);
+            return GetAddrInfoRequestImpl(context, responseBufferPosition, responseBufferSize, true, optionsBufferPosition, optionsBufferSize);
         }
 
         private ResultCode GetHostByNameRequestImpl(ServiceCtx context, ulong inputBufferPosition, ulong inputBufferSize, ulong outputBufferPosition, ulong outputBufferSize, ulong optionsBufferPosition, ulong optionsBufferSize)
@@ -391,7 +391,13 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
             return bufferPosition - originalBufferPosition;
         }
 
-        private ResultCode GetAddrInfoRequestImpl(ServiceCtx context, ulong responseBufferPosition, ulong responseBufferSize, ulong optionsBufferPosition, ulong optionsBufferSize)
+        private ResultCode GetAddrInfoRequestImpl(
+            ServiceCtx context,
+            ulong responseBufferPosition,
+            ulong responseBufferSize,
+            bool withOptions,
+            ulong optionsBufferPosition,
+            ulong optionsBufferSize)
         {
             bool enableNsdResolve = (context.RequestData.ReadInt32() & 1) != 0;
             uint cancelHandle     = context.RequestData.ReadUInt32();
@@ -402,7 +408,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
             // NOTE: We ignore hints for now.
             DeserializeAddrInfos(context.Memory, (ulong)context.Request.SendBuff[2].Position, (ulong)context.Request.SendBuff[2].Size);
 
-            if (optionsBufferSize > 0)
+            if (withOptions)
             {
                 // TODO: Find unknown, Parse and use options.
                 uint unknown = context.RequestData.ReadUInt32();
@@ -457,9 +463,19 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres
                 serializedSize = SerializeAddrInfos(context, responseBufferPosition, responseBufferSize, hostEntry, port);
             }
 
-            context.ResponseData.Write((int)netDbErrorCode);
+            if (withOptions)
-            context.ResponseData.Write((int)errno);
+            {
-            context.ResponseData.Write(serializedSize);
+                context.ResponseData.Write(serializedSize);
+                context.ResponseData.Write((int)errno);
+                context.ResponseData.Write((int)netDbErrorCode);
+                context.ResponseData.Write(0);
+            }
+            else
+            {
+                context.ResponseData.Write((int)netDbErrorCode);
+                context.ResponseData.Write((int)errno);
+                context.ResponseData.Write(serializedSize);
+            }
 
             return ResultCode.Success;
         }

Ryujinx.HLE/HOS/Services/Sockets/Sfdnsres/Types/AddrInfo4.cs

@@ -21,9 +21,9 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Sfdnsres.Types
             Port    = port;
             Address = default;
 
-            address.GetAddressBytes().AsSpan().CopyTo(Address.ToSpan());
+            Span<byte> outAddress = Address.ToSpan();
-
+            address.TryWriteBytes(outAddress, out _);
-            Address.ToSpan().Reverse();
+            outAddress.Reverse();
         }
     }
 }

Ryujinx.HLE/Switch.cs

@@ -49,7 +49,7 @@ namespace Ryujinx.HLE
                 throw new ArgumentNullException(nameof(configuration.AudioDeviceDriver));
             }
 
-            if (configuration.UserChannelPersistence== null)
+            if (configuration.UserChannelPersistence == null)
             {
                 throw new ArgumentNullException(nameof(configuration.UserChannelPersistence));
             }

Ryujinx.Headless.SDL2/Options.cs

@@ -79,6 +79,9 @@ namespace Ryujinx.Headless.SDL2
         [Option("enable-ptc", Required = false, Default = true, HelpText = "Enables profiled translation cache persistency.")]
         public bool? EnablePtc { get; set; }
 
+        [Option("enable-internet-connection", Required = false, Default = false, HelpText = "Enables guest Internet connection.")]
+        public bool? EnableInternetAccess { get; set; }
+
         [Option("enable-fs-integrity-checks", Required = false, Default = true, HelpText = "Enables integrity checks on Game content files.")]
         public bool? EnableFsIntegrityChecks { get; set; }
 

Ryujinx.Headless.SDL2/Program.cs

@@ -459,6 +459,7 @@ namespace Ryujinx.Headless.SDL2
                                                                   (bool)options.EnableVsync,
                                                                   (bool)options.EnableDockedMode,
                                                                   (bool)options.EnablePtc,
+                                                                  (bool)options.EnableInternetAccess,
                                                                   (bool)options.EnableFsIntegrityChecks ? LibHac.FsSystem.IntegrityCheckLevel.ErrorOnInvalid : LibHac.FsSystem.IntegrityCheckLevel.None,
                                                                   options.FsGlobalAccessLogMode,
                                                                   options.SystemTimeOffset,

Ryujinx/Configuration/ConfigurationFileFormat.cs

@@ -14,8 +14,11 @@ namespace Ryujinx.Configuration
         /// <summary>
         /// The current version of the file format
         /// </summary>
-        public const int CurrentVersion = 33;
+        public const int CurrentVersion = 34;
 
+        /// <summary>
+        /// Version of the configuration file format
+        /// </summary>
         public int Version { get; set; }
 
         /// <summary>
@@ -98,7 +101,6 @@ namespace Ryujinx.Configuration
         /// </summary>
         public GraphicsDebugLevel LoggingGraphicsDebugLevel { get; set; }
 
-
         /// <summary>
         /// Change System Language
         /// </summary>
@@ -154,16 +156,16 @@ namespace Ryujinx.Configuration
         /// </summary>
         public bool EnableShaderCache { get; set; }
 
-        /// <summary>
-        /// Enables or disables multi-core scheduling of threads
-        /// </summary>
-        public bool EnableMulticoreScheduling { get; set; }
-
         /// <summary>
         /// Enables or disables profiled translation cache persistency
         /// </summary>
         public bool EnablePtc { get; set; }
 
+        /// <summary>
+        /// Enables or disables guest Internet access
+        /// </summary>
+        public bool EnableInternetAccess { get; set; }
+
         /// <summary>
         /// Enables integrity checks on Game content files
         /// </summary>

Ryujinx/Configuration/ConfigurationState.cs

@@ -205,6 +205,11 @@ namespace Ryujinx.Configuration
             /// </summary>
             public ReactiveObject<bool> EnablePtc { get; private set; }
 
+            /// <summary>
+            /// Enables or disables guest Internet access
+            /// </summary>
+            public ReactiveObject<bool> EnableInternetAccess { get; private set; }
+
             /// <summary>
             /// Enables integrity checks on Game content files
             /// </summary>
@@ -250,6 +255,8 @@ namespace Ryujinx.Configuration
                 EnableDockedMode.Event        += static (sender, e) => LogValueChange(sender, e, nameof(EnableDockedMode));
                 EnablePtc                     = new ReactiveObject<bool>();
                 EnablePtc.Event               += static (sender, e) => LogValueChange(sender, e, nameof(EnablePtc));
+                EnableInternetAccess          = new ReactiveObject<bool>();
+                EnableInternetAccess.Event    += static (sender, e) => LogValueChange(sender, e, nameof(EnableInternetAccess));
                 EnableFsIntegrityChecks       = new ReactiveObject<bool>();
                 EnableFsIntegrityChecks.Event += static (sender, e) => LogValueChange(sender, e, nameof(EnableFsIntegrityChecks));
                 FsGlobalAccessLogMode         = new ReactiveObject<int>();
@@ -276,7 +283,7 @@ namespace Ryujinx.Configuration
             /// Enable or disable keyboard support (Independent from controllers binding)
             /// </summary>
             public ReactiveObject<bool> EnableKeyboard { get; private set; }
-            
+
             /// <summary>
             /// Enable or disable mouse support (Independent from controllers binding)
             /// </summary>
@@ -464,6 +471,7 @@ namespace Ryujinx.Configuration
                 EnableVsync               = Graphics.EnableVsync,
                 EnableShaderCache         = Graphics.EnableShaderCache,
                 EnablePtc                 = System.EnablePtc,
+                EnableInternetAccess      = System.EnableInternetAccess,
                 EnableFsIntegrityChecks   = System.EnableFsIntegrityChecks,
                 FsGlobalAccessLogMode     = System.FsGlobalAccessLogMode,
                 AudioBackend              = System.AudioBackend,
@@ -534,6 +542,7 @@ namespace Ryujinx.Configuration
             Graphics.EnableVsync.Value             = true;
             Graphics.EnableShaderCache.Value       = true;
             System.EnablePtc.Value                 = true;
+            System.EnableInternetAccess.Value      = false;
             System.EnableFsIntegrityChecks.Value   = true;
             System.FsGlobalAccessLogMode.Value     = 0;
             System.AudioBackend.Value              = AudioBackend.SDL2;
@@ -956,6 +965,15 @@ namespace Ryujinx.Configuration
                 configurationFileUpdated = true;
             }
 
+            if (configurationFileFormat.Version < 34)
+            {
+                Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 34.");
+
+                configurationFileFormat.EnableInternetAccess = false;
+
+                configurationFileUpdated = true;
+            }
+
             Logger.EnableFileLog.Value             = configurationFileFormat.EnableFileLog;
             Graphics.BackendThreading.Value        = configurationFileFormat.BackendThreading;
             Graphics.ResScale.Value                = configurationFileFormat.ResScale;
@@ -984,6 +1002,7 @@ namespace Ryujinx.Configuration
             Graphics.EnableVsync.Value             = configurationFileFormat.EnableVsync;
             Graphics.EnableShaderCache.Value       = configurationFileFormat.EnableShaderCache;
             System.EnablePtc.Value                 = configurationFileFormat.EnablePtc;
+            System.EnableInternetAccess.Value      = configurationFileFormat.EnableInternetAccess;
             System.EnableFsIntegrityChecks.Value   = configurationFileFormat.EnableFsIntegrityChecks;
             System.FsGlobalAccessLogMode.Value     = configurationFileFormat.FsGlobalAccessLogMode;
             System.AudioBackend.Value              = configurationFileFormat.AudioBackend;

Ryujinx/Ui/MainWindow.cs

@@ -206,7 +206,7 @@ namespace Ryujinx.Ui
             ConfigurationState.Instance.System.IgnoreMissingServices.Event += UpdateIgnoreMissingServicesState;
             ConfigurationState.Instance.Graphics.AspectRatio.Event         += UpdateAspectRatioState;
             ConfigurationState.Instance.System.EnableDockedMode.Event      += UpdateDockedModeState;
-            ConfigurationState.Instance.System.AudioVolume.Event           += UpdateAudioVolumeState; 
+            ConfigurationState.Instance.System.AudioVolume.Event           += UpdateAudioVolumeState;
 
             if (ConfigurationState.Instance.Ui.StartFullscreen)
             {
@@ -434,7 +434,7 @@ namespace Ryujinx.Ui
                 else
                 {
                     Logger.Warning?.Print(LogClass.Audio, "SDL2 is not supported, trying to fall back to OpenAL.");
-                
+
                     if (OpenALHardwareDeviceDriver.IsSupported)
                     {
                         Logger.Warning?.Print(LogClass.Audio, "Found OpenAL, changing configuration.");
@@ -447,7 +447,7 @@ namespace Ryujinx.Ui
                     else
                     {
                         Logger.Warning?.Print(LogClass.Audio, "OpenAL is not supported, trying to fall back to SoundIO.");
-                         
+
                         if (SoundIoHardwareDeviceDriver.IsSupported)
                         {
                             Logger.Warning?.Print(LogClass.Audio, "Found SoundIO, changing configuration.");
@@ -460,8 +460,8 @@ namespace Ryujinx.Ui
                         else
                         {
                             Logger.Warning?.Print(LogClass.Audio, "SoundIO is not supported, falling back to dummy audio out.");
-                        }           
+                        }
-                    }   
+                    }
                 }
             }
             else if (ConfigurationState.Instance.System.AudioBackend.Value == AudioBackend.SoundIo)
@@ -499,7 +499,7 @@ namespace Ryujinx.Ui
                         else
                         {
                             Logger.Warning?.Print(LogClass.Audio, "OpenAL is not supported, falling back to dummy audio out.");
-                        }           
+                        }
                     }
                 }
             }
@@ -525,7 +525,7 @@ namespace Ryujinx.Ui
                     else
                     {
                         Logger.Warning?.Print(LogClass.Audio, "SDL2 is not supported, trying to fall back to SoundIO.");
-                        
+
                         if (SoundIoHardwareDeviceDriver.IsSupported)
                         {
                             Logger.Warning?.Print(LogClass.Audio, "Found SoundIO, changing configuration.");
@@ -563,6 +563,7 @@ namespace Ryujinx.Ui
                                                                           ConfigurationState.Instance.Graphics.EnableVsync,
                                                                           ConfigurationState.Instance.System.EnableDockedMode,
                                                                           ConfigurationState.Instance.System.EnablePtc,
+                                                                          ConfigurationState.Instance.System.EnableInternetAccess,
                                                                           fsIntegrityCheckLevel,
                                                                           ConfigurationState.Instance.System.FsGlobalAccessLogMode,
                                                                           ConfigurationState.Instance.System.SystemTimeOffset,

Ryujinx/Ui/Windows/SettingsWindow.cs

@@ -52,6 +52,7 @@ namespace Ryujinx.Ui.Windows
         [GUI] CheckButton     _vSyncToggle;
         [GUI] CheckButton     _shaderCacheToggle;
         [GUI] CheckButton     _ptcToggle;
+        [GUI] CheckButton     _internetToggle;
         [GUI] CheckButton     _fsicToggle;
         [GUI] RadioButton     _mmSoftware;
         [GUI] RadioButton     _mmHost;
@@ -226,6 +227,11 @@ namespace Ryujinx.Ui.Windows
                 _ptcToggle.Click();
             }
 
+            if (ConfigurationState.Instance.System.EnableInternetAccess)
+            {
+                _internetToggle.Click();
+            }
+
             if (ConfigurationState.Instance.System.EnableFsIntegrityChecks)
             {
                 _fsicToggle.Click();
@@ -496,6 +502,7 @@ namespace Ryujinx.Ui.Windows
             ConfigurationState.Instance.Graphics.EnableVsync.Value             = _vSyncToggle.Active;
             ConfigurationState.Instance.Graphics.EnableShaderCache.Value       = _shaderCacheToggle.Active;
             ConfigurationState.Instance.System.EnablePtc.Value                 = _ptcToggle.Active;
+            ConfigurationState.Instance.System.EnableInternetAccess.Value      = _internetToggle.Active;
             ConfigurationState.Instance.System.EnableFsIntegrityChecks.Value   = _fsicToggle.Active;
             ConfigurationState.Instance.System.MemoryManagerMode.Value         = memoryMode;
             ConfigurationState.Instance.System.ExpandRam.Value                 = _expandRamToggle.Active;

Ryujinx/Ui/Windows/SettingsWindow.glade

@@ -1507,6 +1507,24 @@
                                     <property name="position">6</property>
                                   </packing>
                                 </child>
+                                <child>
+                                  <object class="GtkCheckButton" id="_internetToggle">
+                                    <property name="label" translatable="yes">Enable guest Internet access</property>
+                                    <property name="visible">True</property>
+                                    <property name="can-focus">True</property>
+                                    <property name="receives-default">False</property>
+                                    <property name="tooltip-text" translatable="yes">Enables guest Internet access. If enabled, the application will behave as if the emulated Switch console was connected to the Internet. Note that in some cases, applications may still access the Internet even with this option disabled</property>
+                                    <property name="halign">start</property>
+                                    <property name="margin-top">5</property>
+                                    <property name="margin-bottom">5</property>
+                                    <property name="draw-indicator">True</property>
+                                  </object>
+                                  <packing>
+                                    <property name="expand">False</property>
+                                    <property name="fill">True</property>
+                                    <property name="position">7</property>
+                                  </packing>
+                                </child>
                                 <child>
                                   <object class="GtkCheckButton" id="_fsicToggle">
                                     <property name="label" translatable="yes">Enable FS Integrity Checks</property>
@@ -1522,7 +1540,7 @@
                                   <packing>
                                     <property name="expand">False</property>
                                     <property name="fill">True</property>
-                                    <property name="position">7</property>
+                                    <property name="position">8</property>
                                   </packing>
                                 </child>
                               </object>