ryujinx/Ryujinx.HLE/HOS/Services/FspSrv/IFileSystem.cs
Alex Barney 5fc1f6a1af Update to version 0.4 of LibHac (#689)
* It compiles

* Print correct name when loading an exefs

* Use DirectorySaveDataFileSystem for savedata

* Handle more errors in IFileSystem

* Remove structs replaced by LibHac structs

* Fix alignment

* Fix alignment again

* Fix IFile and IFileSystem IPC

* Alignment

* Use released libhac version
2019-06-01 02:31:10 +02:00

526 lines
15 KiB
C#

using LibHac.Fs;
using Ryujinx.HLE.HOS.Ipc;
using System;
using System.Collections.Generic;
using System.IO;
using Ryujinx.Common.Logging;
using static Ryujinx.HLE.HOS.ErrorCode;
using static Ryujinx.HLE.Utilities.StringUtils;
namespace Ryujinx.HLE.HOS.Services.FspSrv
{
class IFileSystem : IpcService
{
private Dictionary<int, ServiceProcessRequest> _commands;
public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
private HashSet<string> _openPaths;
private LibHac.Fs.IFileSystem _provider;
public IFileSystem(LibHac.Fs.IFileSystem provider)
{
_commands = new Dictionary<int, ServiceProcessRequest>
{
{ 0, CreateFile },
{ 1, DeleteFile },
{ 2, CreateDirectory },
{ 3, DeleteDirectory },
{ 4, DeleteDirectoryRecursively },
{ 5, RenameFile },
{ 6, RenameDirectory },
{ 7, GetEntryType },
{ 8, OpenFile },
{ 9, OpenDirectory },
{ 10, Commit },
{ 11, GetFreeSpaceSize },
{ 12, GetTotalSpaceSize },
{ 13, CleanDirectoryRecursively },
{ 14, GetFileTimeStampRaw }
};
_openPaths = new HashSet<string>();
_provider = provider;
}
// CreateFile(u32 createOption, u64 size, buffer<bytes<0x301>, 0x19, 0x301> path)
public long CreateFile(ServiceCtx context)
{
string name = ReadUtf8String(context);
int createOption = context.RequestData.ReadInt32();
context.RequestData.BaseStream.Position += 4;
long size = context.RequestData.ReadInt64();
if (name == null)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (_provider.FileExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.CreateFile(name, size, (CreateFileOptions)createOption);
}
catch (DirectoryNotFoundException)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
return 0;
}
// DeleteFile(buffer<bytes<0x301>, 0x19, 0x301> path)
public long DeleteFile(ServiceCtx context)
{
string name = ReadUtf8String(context);
if (!_provider.FileExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.DeleteFile(name);
}
catch (FileNotFoundException)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
return 0;
}
// CreateDirectory(buffer<bytes<0x301>, 0x19, 0x301> path)
public long CreateDirectory(ServiceCtx context)
{
string name = ReadUtf8String(context);
if (name == null)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (_provider.DirectoryExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.CreateDirectory(name);
}
catch (DirectoryNotFoundException)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
return 0;
}
// DeleteDirectory(buffer<bytes<0x301>, 0x19, 0x301> path)
public long DeleteDirectory(ServiceCtx context)
{
string name = ReadUtf8String(context);
if (!_provider.DirectoryExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.DeleteDirectory(name);
}
catch (DirectoryNotFoundException)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
return 0;
}
// DeleteDirectoryRecursively(buffer<bytes<0x301>, 0x19, 0x301> path)
public long DeleteDirectoryRecursively(ServiceCtx context)
{
string name = ReadUtf8String(context);
if (!_provider.DirectoryExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.DeleteDirectoryRecursively(name);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
return 0;
}
// RenameFile(buffer<bytes<0x301>, 0x19, 0x301> oldPath, buffer<bytes<0x301>, 0x19, 0x301> newPath)
public long RenameFile(ServiceCtx context)
{
string oldName = ReadUtf8String(context, 0);
string newName = ReadUtf8String(context, 1);
if (_provider.FileExists(oldName))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (_provider.FileExists(newName))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
}
if (IsPathAlreadyInUse(oldName))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.RenameFile(oldName, newName);
}
catch (FileNotFoundException)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {oldName} or {newName}");
throw;
}
return 0;
}
// RenameDirectory(buffer<bytes<0x301>, 0x19, 0x301> oldPath, buffer<bytes<0x301>, 0x19, 0x301> newPath)
public long RenameDirectory(ServiceCtx context)
{
string oldName = ReadUtf8String(context, 0);
string newName = ReadUtf8String(context, 1);
if (!_provider.DirectoryExists(oldName))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (!_provider.DirectoryExists(newName))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
}
if (IsPathAlreadyInUse(oldName))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.RenameFile(oldName, newName);
}
catch (DirectoryNotFoundException)
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {oldName} or {newName}");
throw;
}
return 0;
}
// GetEntryType(buffer<bytes<0x301>, 0x19, 0x301> path) -> nn::fssrv::sf::DirectoryEntryType
public long GetEntryType(ServiceCtx context)
{
string name = ReadUtf8String(context);
try
{
LibHac.Fs.DirectoryEntryType entryType = _provider.GetEntryType(name);
context.ResponseData.Write((int)entryType);
}
catch (FileNotFoundException)
{
context.ResponseData.Write(0);
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
return 0;
}
// OpenFile(u32 mode, buffer<bytes<0x301>, 0x19, 0x301> path) -> object<nn::fssrv::sf::IFile> file
public long OpenFile(ServiceCtx context)
{
int mode = context.RequestData.ReadInt32();
string name = ReadUtf8String(context);
if (!_provider.FileExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
IFile fileInterface;
try
{
LibHac.Fs.IFile file = _provider.OpenFile(name, (OpenMode)mode);
fileInterface = new IFile(file, name);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
fileInterface.Disposed += RemoveFileInUse;
lock (_openPaths)
{
_openPaths.Add(fileInterface.Path);
}
MakeObject(context, fileInterface);
return 0;
}
// OpenDirectory(u32 filter_flags, buffer<bytes<0x301>, 0x19, 0x301> path) -> object<nn::fssrv::sf::IDirectory> directory
public long OpenDirectory(ServiceCtx context)
{
int mode = context.RequestData.ReadInt32();
string name = ReadUtf8String(context);
if (!_provider.DirectoryExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
IDirectory dirInterface;
try
{
LibHac.Fs.IDirectory dir = _provider.OpenDirectory(name, (OpenDirectoryMode) mode);
dirInterface = new IDirectory(dir);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
dirInterface.Disposed += RemoveDirectoryInUse;
lock (_openPaths)
{
_openPaths.Add(dirInterface.Path);
}
MakeObject(context, dirInterface);
return 0;
}
// Commit()
public long Commit(ServiceCtx context)
{
_provider.Commit();
return 0;
}
// GetFreeSpaceSize(buffer<bytes<0x301>, 0x19, 0x301> path) -> u64 totalFreeSpace
public long GetFreeSpaceSize(ServiceCtx context)
{
string name = ReadUtf8String(context);
context.ResponseData.Write(_provider.GetFreeSpaceSize(name));
return 0;
}
// GetTotalSpaceSize(buffer<bytes<0x301>, 0x19, 0x301> path) -> u64 totalSize
public long GetTotalSpaceSize(ServiceCtx context)
{
string name = ReadUtf8String(context);
context.ResponseData.Write(_provider.GetTotalSpaceSize(name));
return 0;
}
// CleanDirectoryRecursively(buffer<bytes<0x301>, 0x19, 0x301> path)
public long CleanDirectoryRecursively(ServiceCtx context)
{
string name = ReadUtf8String(context);
if (!_provider.DirectoryExists(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
if (IsPathAlreadyInUse(name))
{
return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
}
try
{
_provider.CleanDirectoryRecursively(name);
}
catch (UnauthorizedAccessException)
{
Logger.PrintError(LogClass.ServiceFs, $"Unable to access {name}");
throw;
}
return 0;
}
// GetFileTimeStampRaw(buffer<bytes<0x301>, 0x19, 0x301> path) -> bytes<0x20> timestamp
public long GetFileTimeStampRaw(ServiceCtx context)
{
string name = ReadUtf8String(context);
if (_provider.FileExists(name) || _provider.DirectoryExists(name))
{
FileTimeStampRaw timestamp = _provider.GetFileTimeStampRaw(name);
context.ResponseData.Write(timestamp.Created);
context.ResponseData.Write(timestamp.Modified);
context.ResponseData.Write(timestamp.Accessed);
byte[] data = new byte[8];
// is valid?
data[0] = 1;
context.ResponseData.Write(data);
return 0;
}
return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
}
private bool IsPathAlreadyInUse(string path)
{
lock (_openPaths)
{
return _openPaths.Contains(path);
}
}
private void RemoveFileInUse(object sender, EventArgs e)
{
IFile fileInterface = (IFile)sender;
lock (_openPaths)
{
fileInterface.Disposed -= RemoveFileInUse;
_openPaths.Remove(fileInterface.Path);
}
}
private void RemoveDirectoryInUse(object sender, EventArgs e)
{
IDirectory dirInterface = (IDirectory)sender;
lock (_openPaths)
{
dirInterface.Disposed -= RemoveDirectoryInUse;
_openPaths.Remove(dirInterface.Path);
}
}
}
}