380 lines
14 KiB
C#
380 lines
14 KiB
C#
using Ryujinx.HLE.HOS.Ipc;
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using Ryujinx.HLE.HOS.Kernel;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Ipc;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using Ryujinx.HLE.HOS.Kernel.Threading;
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using Ryujinx.HLE.HOS.Services.Sm;
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using System;
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using System.Buffers.Binary;
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using System.Collections.Generic;
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using System.IO;
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using System.Threading;
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namespace Ryujinx.HLE.HOS.Services
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{
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class ServerBase : IDisposable
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{
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// Must be the maximum value used by services (highest one know is the one used by nvservices = 0x8000).
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// Having a size that is too low will cause failures as data copy will fail if the receiving buffer is
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// not large enough.
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private const int PointerBufferSize = 0x8000;
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private readonly static int[] DefaultCapabilities = new int[]
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{
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0x030363F7,
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0x1FFFFFCF,
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0x207FFFEF,
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0x47E0060F,
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0x0048BFFF,
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0x01007FFF
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};
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private readonly KernelContext _context;
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private KProcess _selfProcess;
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private readonly List<int> _sessionHandles = new List<int>();
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private readonly List<int> _portHandles = new List<int>();
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private readonly Dictionary<int, IpcService> _sessions = new Dictionary<int, IpcService>();
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private readonly Dictionary<int, Func<IpcService>> _ports = new Dictionary<int, Func<IpcService>>();
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public ManualResetEvent InitDone { get; }
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public Func<IpcService> SmObjectFactory { get; }
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public string Name { get; }
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public ServerBase(KernelContext context, string name, Func<IpcService> smObjectFactory = null)
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{
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InitDone = new ManualResetEvent(false);
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Name = name;
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SmObjectFactory = smObjectFactory;
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_context = context;
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const ProcessCreationFlags flags =
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ProcessCreationFlags.EnableAslr |
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ProcessCreationFlags.AddressSpace64Bit |
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ProcessCreationFlags.Is64Bit |
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ProcessCreationFlags.PoolPartitionSystem;
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ProcessCreationInfo creationInfo = new ProcessCreationInfo("Service", 1, 0, 0x8000000, 1, flags, 0, 0);
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KernelStatic.StartInitialProcess(context, creationInfo, DefaultCapabilities, 44, ServerLoop);
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}
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private void AddPort(int serverPortHandle, Func<IpcService> objectFactory)
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{
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_portHandles.Add(serverPortHandle);
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_ports.Add(serverPortHandle, objectFactory);
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}
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public void AddSessionObj(KServerSession serverSession, IpcService obj)
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{
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// Ensure that the sever loop is running.
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InitDone.WaitOne();
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_selfProcess.HandleTable.GenerateHandle(serverSession, out int serverSessionHandle);
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AddSessionObj(serverSessionHandle, obj);
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}
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public void AddSessionObj(int serverSessionHandle, IpcService obj)
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{
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_sessionHandles.Add(serverSessionHandle);
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_sessions.Add(serverSessionHandle, obj);
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}
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private void ServerLoop()
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{
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_selfProcess = KernelStatic.GetCurrentProcess();
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if (SmObjectFactory != null)
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{
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_context.Syscall.ManageNamedPort("sm:", 50, out int serverPortHandle);
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AddPort(serverPortHandle, SmObjectFactory);
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}
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InitDone.Set();
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KThread thread = KernelStatic.GetCurrentThread();
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ulong messagePtr = thread.TlsAddress;
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_context.Syscall.SetHeapSize(0x200000, out ulong heapAddr);
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_selfProcess.CpuMemory.Write(messagePtr + 0x0, 0);
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_selfProcess.CpuMemory.Write(messagePtr + 0x4, 2 << 10);
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_selfProcess.CpuMemory.Write(messagePtr + 0x8, heapAddr | ((ulong)PointerBufferSize << 48));
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int replyTargetHandle = 0;
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while (true)
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{
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int[] portHandles = _portHandles.ToArray();
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int[] sessionHandles = _sessionHandles.ToArray();
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int[] handles = new int[portHandles.Length + sessionHandles.Length];
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portHandles.CopyTo(handles, 0);
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sessionHandles.CopyTo(handles, portHandles.Length);
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// We still need a timeout here to allow the service to pick up and listen new sessions...
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var rc = _context.Syscall.ReplyAndReceive(handles, replyTargetHandle, 1000000L, out int signaledIndex);
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thread.HandlePostSyscall();
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if (!thread.Context.Running)
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{
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break;
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}
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replyTargetHandle = 0;
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if (rc == KernelResult.Success && signaledIndex >= portHandles.Length)
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{
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// We got a IPC request, process it, pass to the appropriate service if needed.
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int signaledHandle = handles[signaledIndex];
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if (Process(signaledHandle, heapAddr))
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{
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replyTargetHandle = signaledHandle;
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}
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}
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else
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{
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if (rc == KernelResult.Success)
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{
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// We got a new connection, accept the session to allow servicing future requests.
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if (_context.Syscall.AcceptSession(handles[signaledIndex], out int serverSessionHandle) == KernelResult.Success)
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{
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IpcService obj = _ports[handles[signaledIndex]].Invoke();
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AddSessionObj(serverSessionHandle, obj);
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}
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}
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_selfProcess.CpuMemory.Write(messagePtr + 0x0, 0);
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_selfProcess.CpuMemory.Write(messagePtr + 0x4, 2 << 10);
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_selfProcess.CpuMemory.Write(messagePtr + 0x8, heapAddr | ((ulong)PointerBufferSize << 48));
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}
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}
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Dispose();
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}
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private bool Process(int serverSessionHandle, ulong recvListAddr)
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{
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KProcess process = KernelStatic.GetCurrentProcess();
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KThread thread = KernelStatic.GetCurrentThread();
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ulong messagePtr = thread.TlsAddress;
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ulong messageSize = 0x100;
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byte[] reqData = new byte[messageSize];
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process.CpuMemory.Read(messagePtr, reqData);
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IpcMessage request = new IpcMessage(reqData, (long)messagePtr);
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IpcMessage response = new IpcMessage();
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ulong tempAddr = recvListAddr;
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int sizesOffset = request.RawData.Length - ((request.RecvListBuff.Count * 2 + 3) & ~3);
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bool noReceive = true;
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for (int i = 0; i < request.ReceiveBuff.Count; i++)
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{
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noReceive &= (request.ReceiveBuff[i].Position == 0);
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}
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if (noReceive)
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{
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for (int i = 0; i < request.RecvListBuff.Count; i++)
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{
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ulong size = (ulong)BinaryPrimitives.ReadInt16LittleEndian(request.RawData.AsSpan().Slice(sizesOffset + i * 2, 2));
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response.PtrBuff.Add(new IpcPtrBuffDesc(tempAddr, (uint)i, size));
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request.RecvListBuff[i] = new IpcRecvListBuffDesc(tempAddr, size);
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tempAddr += size;
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}
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}
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bool shouldReply = true;
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bool isTipcCommunication = false;
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using (MemoryStream raw = new MemoryStream(request.RawData))
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{
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BinaryReader reqReader = new BinaryReader(raw);
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if (request.Type == IpcMessageType.HipcRequest ||
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request.Type == IpcMessageType.HipcRequestWithContext)
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{
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response.Type = IpcMessageType.HipcResponse;
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using (MemoryStream resMs = new MemoryStream())
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{
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BinaryWriter resWriter = new BinaryWriter(resMs);
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ServiceCtx context = new ServiceCtx(
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_context.Device,
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process,
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process.CpuMemory,
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thread,
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request,
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response,
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reqReader,
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resWriter);
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_sessions[serverSessionHandle].CallHipcMethod(context);
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response.RawData = resMs.ToArray();
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}
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}
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else if (request.Type == IpcMessageType.HipcControl ||
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request.Type == IpcMessageType.HipcControlWithContext)
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{
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uint magic = (uint)reqReader.ReadUInt64();
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uint cmdId = (uint)reqReader.ReadUInt64();
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switch (cmdId)
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{
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case 0:
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request = FillResponse(response, 0, _sessions[serverSessionHandle].ConvertToDomain());
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break;
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case 3:
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request = FillResponse(response, 0, PointerBufferSize);
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break;
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// TODO: Whats the difference between IpcDuplicateSession/Ex?
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case 2:
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case 4:
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int unknown = reqReader.ReadInt32();
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_context.Syscall.CreateSession(false, 0, out int dupServerSessionHandle, out int dupClientSessionHandle);
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AddSessionObj(dupServerSessionHandle, _sessions[serverSessionHandle]);
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response.HandleDesc = IpcHandleDesc.MakeMove(dupClientSessionHandle);
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request = FillResponse(response, 0);
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break;
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default: throw new NotImplementedException(cmdId.ToString());
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}
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}
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else if (request.Type == IpcMessageType.HipcCloseSession || request.Type == IpcMessageType.TipcCloseSession)
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{
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_context.Syscall.CloseHandle(serverSessionHandle);
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_sessionHandles.Remove(serverSessionHandle);
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IpcService service = _sessions[serverSessionHandle];
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if (service is IDisposable disposableObj)
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{
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disposableObj.Dispose();
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}
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_sessions.Remove(serverSessionHandle);
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shouldReply = false;
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}
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// If the type is past 0xF, we are using TIPC
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else if (request.Type > IpcMessageType.TipcCloseSession)
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{
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isTipcCommunication = true;
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// Response type is always the same as request on TIPC.
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response.Type = request.Type;
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using (MemoryStream resMs = new MemoryStream())
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{
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BinaryWriter resWriter = new BinaryWriter(resMs);
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ServiceCtx context = new ServiceCtx(
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_context.Device,
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process,
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process.CpuMemory,
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thread,
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request,
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response,
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reqReader,
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resWriter);
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_sessions[serverSessionHandle].CallTipcMethod(context);
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response.RawData = resMs.ToArray();
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}
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process.CpuMemory.Write(messagePtr, response.GetBytesTipc());
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}
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else
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{
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throw new NotImplementedException(request.Type.ToString());
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}
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if (!isTipcCommunication)
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{
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process.CpuMemory.Write(messagePtr, response.GetBytes((long)messagePtr, recvListAddr | ((ulong)PointerBufferSize << 48)));
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}
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return shouldReply;
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}
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}
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private static IpcMessage FillResponse(IpcMessage response, long result, params int[] values)
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{
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using (MemoryStream ms = new MemoryStream())
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{
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BinaryWriter writer = new BinaryWriter(ms);
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foreach (int value in values)
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{
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writer.Write(value);
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}
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return FillResponse(response, result, ms.ToArray());
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}
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}
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private static IpcMessage FillResponse(IpcMessage response, long result, byte[] data = null)
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{
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response.Type = IpcMessageType.HipcResponse;
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using (MemoryStream ms = new MemoryStream())
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{
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BinaryWriter writer = new BinaryWriter(ms);
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writer.Write(IpcMagic.Sfco);
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writer.Write(result);
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if (data != null)
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{
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writer.Write(data);
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}
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response.RawData = ms.ToArray();
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}
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return response;
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}
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protected virtual void Dispose(bool disposing)
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{
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if (disposing)
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{
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foreach (IpcService service in _sessions.Values)
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{
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if (service is IDisposable disposableObj)
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{
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disposableObj.Dispose();
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}
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service.DestroyAtExit();
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}
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_sessions.Clear();
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InitDone.Dispose();
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}
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}
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public void Dispose()
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{
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Dispose(true);
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}
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}
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} |