PF_UNSPEC PF_LOCAL PF_UNIX PF_INET PF_AX25 PF_IPX PF_APPLETALK PF_NETROM PF_BRIDGE PF_ATMPVC PF_X25 PF_INET6 PF_ROSE PF_DECnet PF_NETBEUI PF_SECURITY PF_KEY PF_NETLINK PF_ROUTE PF_PACKET PF_ASH PF_ECONET PF_ATMSVC PF_RDS PF_SNA PF_IRDA PF_PPPOX PF_WANPIPE PF_LLC PF_IB PF_MPLS PF_CAN PF_TIPC PF_BLUETOOTH PF_IUCV PF_RXRPC PF_ISDN PF_PHONET PF_IEEE802154 PF_CAIF PF_ALG PF_NFC PF_VSOCK