public Result OpenBaseFileSystem(out ReferenceCountedDisposable <IFileSystemSf> fileSystem,
BaseFileSystemId fileSystemId)
{
UnsafeHelpers.SkipParamInit(out fileSystem);
Result rc = CheckCapabilityById(fileSystemId, _processId);
if (rc.IsFailure())
{
return(rc);
}
ReferenceCountedDisposable <IFileSystem> fs = null;
try
{
// Open the file system
rc = _serviceImpl.OpenBaseFileSystem(out fs, fileSystemId);
if (rc.IsFailure())
{
return(rc);
}
// Create an SF adapter for the file system
fileSystem = FileSystemInterfaceAdapter.CreateShared(ref fs);
return(Result.Success);
}
finally
{
fs?.Dispose();
}
}
private Result CheckCapabilityById(BaseFileSystemId id, ulong processId)
{
Result rc = GetProgramInfo(out ProgramInfo programInfo, processId);
if (rc.IsFailure())
{
return(rc);
}
if (id == BaseFileSystemId.TemporaryDirectory)
{
Accessibility accessibility =
programInfo.AccessControl.GetAccessibilityFor(AccessibilityType.MountTemporaryDirectory);
if (!accessibility.CanRead || !accessibility.CanWrite)
{
return(ResultFs.PermissionDenied.Log());
}
}
else
{
Accessibility accessibility =
programInfo.AccessControl.GetAccessibilityFor(AccessibilityType.MountAllBaseFileSystem);
if (!accessibility.CanRead || !accessibility.CanWrite)
{
return(ResultFs.PermissionDenied.Log());
}
}
return(Result.Success);
}
