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using Ryujinx.Common.Logging;
using Ryujinx.Horizon.Common;
using Ryujinx.Horizon.Sdk.Sf.Hipc;
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Ryujinx.Horizon.Sdk.Sf.Cmif
{
abstract class ServiceDispatchTableBase
{
private const uint MaxCmifVersion = 1;
public abstract Result ProcessMessage(ref ServiceDispatchContext context, ReadOnlySpan<byte> inRawData);
protected Result ProcessMessageImpl(ref ServiceDispatchContext context, ReadOnlySpan<byte> inRawData, IReadOnlyDictionary<int, CommandHandler> entries, string objectName)
{
if (inRawData.Length < Unsafe.SizeOf<CmifInHeader>())
{
Logger.Warning?.Print(LogClass.KernelIpc, $"Request message size 0x{inRawData.Length:X} is invalid");
return SfResult.InvalidHeaderSize;
}
CmifInHeader inHeader = MemoryMarshal.Cast<byte, CmifInHeader>(inRawData)[0];
if (inHeader.Magic != CmifMessage.CmifInHeaderMagic || inHeader.Version > MaxCmifVersion)
{
Logger.Warning?.Print(LogClass.KernelIpc, $"Request message header magic value 0x{inHeader.Magic:X} is invalid");
return SfResult.InvalidInHeader;
}
ReadOnlySpan<byte> inMessageRawData = inRawData[Unsafe.SizeOf<CmifInHeader>()..];
uint commandId = inHeader.CommandId;
var outHeader = Span<CmifOutHeader>.Empty;
if (!entries.TryGetValue((int)commandId, out var commandHandler))
{
Logger.Warning?.Print(LogClass.KernelIpc, $"{objectName} command ID 0x{commandId:X} is not implemented");
if (HorizonStatic.Options.IgnoreMissingServices)
{
// If ignore missing services is enabled, just pretend that everything is fine.
var response = PrepareForStubReply(ref context, out Span<byte> outRawData);
CommandHandler.GetCmifOutHeaderPointer(ref outHeader, ref outRawData);
outHeader[0] = new CmifOutHeader() { Magic = CmifMessage.CmifOutHeaderMagic, Result = Result.Success };
return Result.Success;
}
return SfResult.UnknownCommandId;
}
Logger.Trace?.Print(LogClass.KernelIpc, $"{objectName}.{commandHandler.MethodName} called");
Result commandResult = commandHandler.Invoke(ref outHeader, ref context, inMessageRawData);
if (commandResult.Module == SfResult.ModuleId ||
commandResult.Module == HipcResult.ModuleId)
{
Logger.Warning?.Print(LogClass.KernelIpc, $"{commandHandler.MethodName} returned error {commandResult}");
}
if (SfResult.RequestContextChanged(commandResult))
{
return commandResult;
}
if (outHeader.IsEmpty)
{
commandResult.AbortOnSuccess();
return commandResult;
}
outHeader[0] = new CmifOutHeader() { Magic = CmifMessage.CmifOutHeaderMagic, Result = commandResult };
return Result.Success;
}
private static HipcMessageData PrepareForStubReply(scoped ref ServiceDispatchContext context, out Span<byte> outRawData)
{
var response = HipcMessage.WriteResponse(context.OutMessageBuffer, 0, 0x20 / sizeof(uint), 0, 0);
outRawData = MemoryMarshal.Cast<uint, byte>(response.DataWords);
return response;
}
}
}
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