Function isValidDeviceMode

pkg/parse/parse.go:140–156

isValidDeviceMode checks if the mode for device is valid or not. isValid mode is a composition of r (read), w (write), and m (mknod).

(mode string)

// isValidDeviceMode checks if the mode for device is valid or not.
// isValid mode is a composition of r (read), w (write), and m (mknod).
func isValidDeviceMode(mode string) bool {
	var legalDeviceMode = map[rune]bool{
		'r': true,
		'w': true,
		'm': true,
	}
	if mode == "" {
		return false
	}
	for _, c := range mode {
		if !legalDeviceMode[c] {
			return false
		}
		legalDeviceMode[c] = false
	}
	return true
}

// ValidateVolumeHostDir validates a volume mount's source directory
func ValidateVolumeHostDir(hostDir string) error {