kubernetes/pkg/volume/validation/pv_validation.go

// ValidatePersistentVolume validates PV object for plugin specific validation
// We can put here validations which are specific to volume types.
func ValidatePersistentVolume(pv *api.PersistentVolume) field.ErrorList { … }

func checkMountOption(pv *api.PersistentVolume) field.ErrorList { … }

// ValidatePathNoBacksteps will make sure the targetPath does not have any element which is ".."
func ValidatePathNoBacksteps(targetPath string) error { … }