nsioctl

var (
	// NS_GET_USERNS returns a file descriptor that refers to an owning user
	// namespace.
	NS_GET_USERNS = ioctl.IO(_NSIO, 0x1)
	// NS_GET_PARENT returns a file descriptor that refers to a parent
	// namespace.
	NS_GET_PARENT = ioctl.IO(_NSIO, 0x2)
	// NS_GET_NSTYPE returns the type of namespace CLONE_NEW* value referred to
	// by a file descriptor.
	NS_GET_NSTYPE = ioctl.IO(_NSIO, 0x3)
	// NS_GET_OWNER_UID gets the owner UID (in the caller's user namespace) for
	// a user namespace.
	NS_GET_OWNER_UID = ioctl.IO(_NSIO, 0x4)

	// TUNGETDEVNETNS returns a file descriptor that refers the the network
	// namespace of the TAP/TUN netdev.
	TUNGETDEVNETNS = ioctl.IO('T', 227)
)