NETLINK_ROUTE
NETLINK_UNUSED
NETLINK_USERSOCK
NETLINK_FIREWALL
NETLINK_SOCK_DIAG
NETLINK_NFLOG
NETLINK_XFRM
NETLINK_SELINUX
NETLINK_ISCSI
NETLINK_AUDIT
NETLINK_FIB_LOOKUP
NETLINK_CONNECTOR
NETLINK_NETFILTER
NETLINK_IP6_FW
NETLINK_DNRTMSG
NETLINK_KOBJECT_UEVENT
NETLINK_GENERIC
NETLINK_SCSITRANSPORT
NETLINK_ECRYPTFS
NETLINK_RDMA
NETLINK_CRYPTO