NETLINK_ADD_MEMBERSHIP		1
NETLINK_DROP_MEMBERSHIP		2
NETLINK_PKTINFO			3
NETLINK_BROADCAST_ERROR		4
NETLINK_NO_ENOBUFS		5
NETLINK_RX_RING			6
NETLINK_TX_RING			7
NETLINK_LISTEN_ALL_NSID		8
NETLINK_LIST_MEMBERSHIPS	9
NETLINK_CAP_ACK			10
NETLINK_EXT_ACK			11