code: func (r *Root) scopedPath(realPath string) bool {
  	// Volumes path for Docker version >= 1.7
  	if strings.HasPrefix(realPath, filepath.Join(r.scope, volumesPathName)) && realPath != filepath.Join(r.scope, volumesPathName) {
  		return true
  	}
  
  	// Volumes path for Docker version < 1.7
  	if strings.HasPrefix(realPath, filepath.Join(r.scope, oldVfsDir)) {
  		return true
  	}
  
  	return false
  }
docs: // scopedPath verifies that the path where the volume is located
  // is under Docker's root and the valid local paths.