Ryujinx/Ryujinx.HLE/HOS/Ipc/IpcHandler.cs
jduncanator d059ffb15d
Increase IPC buffer size (#803)
This is a hack, but it works for now. We should really determine a way to automatically calculate the required buffer size to avoid situations where specific IPC calls "overflow" the maximum size.
2019-10-31 15:50:12 +11:00

150 lines
4.7 KiB
C#

using ARMeilleure.Memory;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Ipc;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.HLE.HOS.Kernel.Threading;
using System;
using System.IO;
namespace Ryujinx.HLE.HOS.Ipc
{
static class IpcHandler
{
public static KernelResult IpcCall(
Switch device,
KProcess process,
IMemoryManager memory,
KThread thread,
KClientSession session,
IpcMessage request,
long cmdPtr)
{
IpcMessage response = new IpcMessage();
using (MemoryStream raw = new MemoryStream(request.RawData))
{
BinaryReader reqReader = new BinaryReader(raw);
if (request.Type == IpcMessageType.Request ||
request.Type == IpcMessageType.RequestWithContext)
{
response.Type = IpcMessageType.Response;
using (MemoryStream resMs = new MemoryStream())
{
BinaryWriter resWriter = new BinaryWriter(resMs);
ServiceCtx context = new ServiceCtx(
device,
process,
memory,
thread,
session,
request,
response,
reqReader,
resWriter);
session.Service.CallMethod(context);
response.RawData = resMs.ToArray();
}
}
else if (request.Type == IpcMessageType.Control ||
request.Type == IpcMessageType.ControlWithContext)
{
long magic = reqReader.ReadInt64();
long cmdId = reqReader.ReadInt64();
switch (cmdId)
{
case 0:
{
request = FillResponse(response, 0, session.Service.ConvertToDomain());
break;
}
case 3:
{
request = FillResponse(response, 0, 0x1000);
break;
}
// TODO: Whats the difference between IpcDuplicateSession/Ex?
case 2:
case 4:
{
int unknown = reqReader.ReadInt32();
if (process.HandleTable.GenerateHandle(session, out int handle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
response.HandleDesc = IpcHandleDesc.MakeMove(handle);
request = FillResponse(response, 0);
break;
}
default: throw new NotImplementedException(cmdId.ToString());
}
}
else if (request.Type == IpcMessageType.CloseSession)
{
// TODO
return KernelResult.PortRemoteClosed;
}
else
{
throw new NotImplementedException(request.Type.ToString());
}
memory.WriteBytes(cmdPtr, response.GetBytes(cmdPtr));
}
return KernelResult.Success;
}
private static IpcMessage FillResponse(IpcMessage response, long result, params int[] values)
{
using (MemoryStream ms = new MemoryStream())
{
BinaryWriter writer = new BinaryWriter(ms);
foreach (int value in values)
{
writer.Write(value);
}
return FillResponse(response, result, ms.ToArray());
}
}
private static IpcMessage FillResponse(IpcMessage response, long result, byte[] data = null)
{
response.Type = IpcMessageType.Response;
using (MemoryStream ms = new MemoryStream())
{
BinaryWriter writer = new BinaryWriter(ms);
writer.Write(IpcMagic.Sfco);
writer.Write(result);
if (data != null)
{
writer.Write(data);
}
response.RawData = ms.ToArray();
}
return response;
}
}
}