Ryujinx/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystemProxy.cs
Ac_K 1ff89d6482 Implement basic support of SystemSaveData and Cleanup IFileSystemProxy (#767)
* Implement basic support of SystemSaveData and Cleanup IFileSystemProxy

- Implement `OpenSystemSaveData` as a `IFileSystem` in `SaveHelper`:
  On real device, system saves data are stored encrypted, and we can't create an empty system save data for now. That's why if a user put his own dump of system save in `RyuFs\nand\system\save\`, we extract content in associated folder and open it as a `IFileSystem`. If the system save data don't exist, a folder is created.

- Cleanup `IFileSystemProxy` by adding a Helper class.

- Implement `GetSavePath` in `VirtualFileSystem` and remove `GetGameSavePath` in `SaveHelper`.

* remove the forgotten I

* Fix align
2019-09-08 23:33:40 +02:00

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C#

using LibHac;
using LibHac.Fs;
using LibHac.Fs.NcaUtils;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.FileSystem;
using System.IO;
using static Ryujinx.HLE.FileSystem.VirtualFileSystem;
using static Ryujinx.HLE.Utilities.StringUtils;
namespace Ryujinx.HLE.HOS.Services.FspSrv
{
[Service("fsp-srv")]
class IFileSystemProxy : IpcService
{
public IFileSystemProxy(ServiceCtx context) { }
[Command(1)]
// Initialize(u64, pid)
public ResultCode Initialize(ServiceCtx context)
{
return ResultCode.Success;
}
[Command(8)]
// OpenFileSystemWithId(nn::fssrv::sf::FileSystemType filesystem_type, nn::ApplicationId tid, buffer<bytes<0x301>, 0x19, 0x301> path)
// -> object<nn::fssrv::sf::IFileSystem> contentFs
public ResultCode OpenFileSystemWithId(ServiceCtx context)
{
FileSystemType fileSystemType = (FileSystemType)context.RequestData.ReadInt32();
long titleId = context.RequestData.ReadInt64();
string switchPath = ReadUtf8String(context);
string fullPath = context.Device.FileSystem.SwitchPathToSystemPath(switchPath);
if (!File.Exists(fullPath))
{
if (fullPath.Contains("."))
{
ResultCode result = FileSystemHelper.OpenFileSystemFromInternalFile(context, fullPath, out IFileSystem fileSystem);
if (result == ResultCode.Success)
{
MakeObject(context, fileSystem);
}
return result;
}
return ResultCode.PathDoesNotExist;
}
FileStream fileStream = new FileStream(fullPath, FileMode.Open, FileAccess.Read);
string extension = Path.GetExtension(fullPath);
if (extension == ".nca")
{
ResultCode result = FileSystemHelper.OpenNcaFs(context, fullPath, fileStream.AsStorage(), out IFileSystem fileSystem);
if (result == ResultCode.Success)
{
MakeObject(context, fileSystem);
}
return result;
}
else if (extension == ".nsp")
{
ResultCode result = FileSystemHelper.OpenNsp(context, fullPath, out IFileSystem fileSystem);
if (result == ResultCode.Success)
{
MakeObject(context, fileSystem);
}
return result;
}
return ResultCode.InvalidInput;
}
[Command(11)]
// OpenBisFileSystem(nn::fssrv::sf::Partition partitionID, buffer<bytes<0x301>, 0x19, 0x301>) -> object<nn::fssrv::sf::IFileSystem> Bis
public ResultCode OpenBisFileSystem(ServiceCtx context)
{
int bisPartitionId = context.RequestData.ReadInt32();
string partitionString = ReadUtf8String(context);
string bisPartitionPath = string.Empty;
switch (bisPartitionId)
{
case 29:
bisPartitionPath = SafeNandPath;
break;
case 30:
case 31:
bisPartitionPath = SystemNandPath;
break;
case 32:
bisPartitionPath = UserNandPath;
break;
default:
return ResultCode.InvalidInput;
}
string fullPath = context.Device.FileSystem.GetFullPartitionPath(bisPartitionPath);
LocalFileSystem fileSystem = new LocalFileSystem(fullPath);
MakeObject(context, new IFileSystem(fileSystem));
return ResultCode.Success;
}
[Command(18)]
// OpenSdCardFileSystem() -> object<nn::fssrv::sf::IFileSystem>
public ResultCode OpenSdCardFileSystem(ServiceCtx context)
{
string sdCardPath = context.Device.FileSystem.GetSdCardPath();
LocalFileSystem fileSystem = new LocalFileSystem(sdCardPath);
MakeObject(context, new IFileSystem(fileSystem));
return ResultCode.Success;
}
[Command(51)]
// OpenSaveDataFileSystem(u8 save_data_space_id, nn::fssrv::sf::SaveStruct saveStruct) -> object<nn::fssrv::sf::IFileSystem> saveDataFs
public ResultCode OpenSaveDataFileSystem(ServiceCtx context)
{
ResultCode result = FileSystemHelper.LoadSaveDataFileSystem(context, false, out IFileSystem fileSystem);
if (result == ResultCode.Success)
{
MakeObject(context, fileSystem);
}
return result;
}
[Command(52)]
// OpenSaveDataFileSystemBySystemSaveDataId(u8 save_data_space_id, nn::fssrv::sf::SaveStruct saveStruct) -> object<nn::fssrv::sf::IFileSystem> systemSaveDataFs
public ResultCode OpenSaveDataFileSystemBySystemSaveDataId(ServiceCtx context)
{
ResultCode result = FileSystemHelper.LoadSaveDataFileSystem(context, false, out IFileSystem fileSystem);
if (result == ResultCode.Success)
{
MakeObject(context, fileSystem);
}
return result;
}
[Command(53)]
// OpenReadOnlySaveDataFileSystem(u8 save_data_space_id, nn::fssrv::sf::SaveStruct save_struct) -> object<nn::fssrv::sf::IFileSystem>
public ResultCode OpenReadOnlySaveDataFileSystem(ServiceCtx context)
{
ResultCode result = FileSystemHelper.LoadSaveDataFileSystem(context, true, out IFileSystem fileSystem);
if (result == ResultCode.Success)
{
MakeObject(context, fileSystem);
}
return result;
}
[Command(200)]
// OpenDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage> dataStorage
public ResultCode OpenDataStorageByCurrentProcess(ServiceCtx context)
{
MakeObject(context, new IStorage(context.Device.FileSystem.RomFs.AsStorage()));
return 0;
}
[Command(202)]
// OpenDataStorageByDataId(u8 storageId, nn::ApplicationId tid) -> object<nn::fssrv::sf::IStorage> dataStorage
public ResultCode OpenDataStorageByDataId(ServiceCtx context)
{
StorageId storageId = (StorageId)context.RequestData.ReadByte();
byte[] padding = context.RequestData.ReadBytes(7);
long titleId = context.RequestData.ReadInt64();
ContentType contentType = ContentType.Data;
StorageId installedStorage =
context.Device.System.ContentManager.GetInstalledStorage(titleId, contentType, storageId);
if (installedStorage == StorageId.None)
{
contentType = ContentType.PublicData;
installedStorage =
context.Device.System.ContentManager.GetInstalledStorage(titleId, contentType, storageId);
}
if (installedStorage != StorageId.None)
{
string contentPath = context.Device.System.ContentManager.GetInstalledContentPath(titleId, storageId, contentType);
string installPath = context.Device.FileSystem.SwitchPathToSystemPath(contentPath);
if (!string.IsNullOrWhiteSpace(installPath))
{
string ncaPath = installPath;
if (File.Exists(ncaPath))
{
try
{
LibHac.Fs.IStorage ncaStorage = new LocalStorage(ncaPath, FileAccess.Read, FileMode.Open);
Nca nca = new Nca(context.Device.System.KeySet, ncaStorage);
LibHac.Fs.IStorage romfsStorage = nca.OpenStorage(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel);
MakeObject(context, new IStorage(romfsStorage));
}
catch (HorizonResultException ex)
{
return (ResultCode)ex.ResultValue.Value;
}
return ResultCode.Success;
}
else
{
throw new FileNotFoundException($"No Nca found in Path `{ncaPath}`.");
}
}
else
{
throw new DirectoryNotFoundException($"Path for title id {titleId:x16} on Storage {storageId} was not found in Path {installPath}.");
}
}
throw new FileNotFoundException($"System archive with titleid {titleId:x16} was not found on Storage {storageId}. Found in {installedStorage}.");
}
[Command(203)]
// OpenPatchDataStorageByCurrentProcess() -> object<nn::fssrv::sf::IStorage>
public ResultCode OpenPatchDataStorageByCurrentProcess(ServiceCtx context)
{
MakeObject(context, new IStorage(context.Device.FileSystem.RomFs.AsStorage()));
return ResultCode.Success;
}
[Command(1005)]
// GetGlobalAccessLogMode() -> u32 logMode
public ResultCode GetGlobalAccessLogMode(ServiceCtx context)
{
int mode = context.Device.System.GlobalAccessLogMode;
context.ResponseData.Write(mode);
return ResultCode.Success;
}
[Command(1006)]
// OutputAccessLogToSdCard(buffer<bytes, 5> log_text)
public ResultCode OutputAccessLogToSdCard(ServiceCtx context)
{
string message = ReadUtf8StringSend(context);
// FS ends each line with a newline. Remove it because Ryujinx logging adds its own newline
Logger.PrintAccessLog(LogClass.ServiceFs, message.TrimEnd('\n'));
return ResultCode.Success;
}
}
}