diff options
| author | Ac_K <Acoustik666@gmail.com> | 2019-09-08 23:33:40 +0200 |
|---|---|---|
| committer | Thomas Guillemard <me@thog.eu> | 2019-09-08 23:33:40 +0200 |
| commit | 1ff89d6482a6ec907bb983c1d2bc473bea546367 (patch) | |
| tree | 9ca3bcb30007abd249419cdd63f8e475bc6059a8 /Ryujinx.HLE/HOS/Services/FspSrv/FileSystemHelper.cs | |
| parent | 9afb8ad485b364e3ecf738b1175c32cce95507bd (diff) | |
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
Diffstat (limited to 'Ryujinx.HLE/HOS/Services/FspSrv/FileSystemHelper.cs')
| -rw-r--r-- | Ryujinx.HLE/HOS/Services/FspSrv/FileSystemHelper.cs | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Services/FspSrv/FileSystemHelper.cs b/Ryujinx.HLE/HOS/Services/FspSrv/FileSystemHelper.cs new file mode 100644 index 00000000..d2e157f5 --- /dev/null +++ b/Ryujinx.HLE/HOS/Services/FspSrv/FileSystemHelper.cs @@ -0,0 +1,144 @@ +using LibHac; +using LibHac.Fs; +using LibHac.Fs.NcaUtils; +using Ryujinx.Common; +using Ryujinx.HLE.FileSystem; +using Ryujinx.HLE.Utilities; +using System.IO; + +namespace Ryujinx.HLE.HOS.Services.FspSrv +{ + static class FileSystemHelper + { + public static ResultCode LoadSaveDataFileSystem(ServiceCtx context, bool readOnly, out IFileSystem loadedFileSystem) + { + loadedFileSystem = null; + + SaveSpaceId saveSpaceId = (SaveSpaceId)context.RequestData.ReadInt64(); + ulong titleId = context.RequestData.ReadUInt64(); + UInt128 userId = context.RequestData.ReadStruct<UInt128>(); + long saveId = context.RequestData.ReadInt64(); + SaveDataType saveDataType = (SaveDataType)context.RequestData.ReadByte(); + SaveInfo saveInfo = new SaveInfo(titleId, saveId, saveDataType, saveSpaceId, userId); + string savePath = context.Device.FileSystem.GetSavePath(context, saveInfo); + + try + { + LocalFileSystem fileSystem = new LocalFileSystem(savePath); + LibHac.Fs.IFileSystem saveFileSystem = new DirectorySaveDataFileSystem(fileSystem); + + if (readOnly) + { + saveFileSystem = new ReadOnlyFileSystem(saveFileSystem); + } + + loadedFileSystem = new IFileSystem(saveFileSystem); + } + catch (HorizonResultException ex) + { + return (ResultCode)ex.ResultValue.Value; + } + + return ResultCode.Success; + } + + public static ResultCode OpenNsp(ServiceCtx context, string pfsPath, out IFileSystem openedFileSystem) + { + openedFileSystem = null; + + try + { + LocalStorage storage = new LocalStorage(pfsPath, FileAccess.Read, FileMode.Open); + PartitionFileSystem nsp = new PartitionFileSystem(storage); + + ImportTitleKeysFromNsp(nsp, context.Device.System.KeySet); + + openedFileSystem = new IFileSystem(nsp); + } + catch (HorizonResultException ex) + { + return (ResultCode)ex.ResultValue.Value; + } + + return ResultCode.Success; + } + + public static ResultCode OpenNcaFs(ServiceCtx context, string ncaPath, LibHac.Fs.IStorage ncaStorage, out IFileSystem openedFileSystem) + { + openedFileSystem = null; + + try + { + Nca nca = new Nca(context.Device.System.KeySet, ncaStorage); + + if (!nca.SectionExists(NcaSectionType.Data)) + { + return ResultCode.PartitionNotFound; + } + + LibHac.Fs.IFileSystem fileSystem = nca.OpenFileSystem(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel); + + openedFileSystem = new IFileSystem(fileSystem); + } + catch (HorizonResultException ex) + { + return (ResultCode)ex.ResultValue.Value; + } + + return ResultCode.Success; + } + + public static ResultCode OpenFileSystemFromInternalFile(ServiceCtx context, string fullPath, out IFileSystem openedFileSystem) + { + openedFileSystem = null; + + DirectoryInfo archivePath = new DirectoryInfo(fullPath).Parent; + + while (string.IsNullOrWhiteSpace(archivePath.Extension)) + { + archivePath = archivePath.Parent; + } + + if (archivePath.Extension == ".nsp" && File.Exists(archivePath.FullName)) + { + FileStream pfsFile = new FileStream( + archivePath.FullName.TrimEnd(Path.DirectorySeparatorChar), + FileMode.Open, + FileAccess.Read); + + try + { + PartitionFileSystem nsp = new PartitionFileSystem(pfsFile.AsStorage()); + + ImportTitleKeysFromNsp(nsp, context.Device.System.KeySet); + + string filename = fullPath.Replace(archivePath.FullName, string.Empty).TrimStart('\\'); + + if (nsp.FileExists(filename)) + { + return OpenNcaFs(context, fullPath, nsp.OpenFile(filename, OpenMode.Read).AsStorage(), out openedFileSystem); + } + } + catch (HorizonResultException ex) + { + return (ResultCode)ex.ResultValue.Value; + } + } + + return ResultCode.PathDoesNotExist; + } + + public static void ImportTitleKeysFromNsp(LibHac.Fs.IFileSystem nsp, Keyset keySet) + { + foreach (DirectoryEntry ticketEntry in nsp.EnumerateEntries("*.tik")) + { + Ticket ticket = new Ticket(nsp.OpenFile(ticketEntry.FullPath, OpenMode.Read).AsStream()); + + if (!keySet.TitleKeys.ContainsKey(ticket.RightsId)) + { + keySet.TitleKeys.Add(ticket.RightsId, ticket.GetTitleKey(keySet)); + } + } + } + } +}
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