| 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_CAN | |
| PF_TIPC | |
| PF_BLUETOOTH | |
| PF_IUCV | |
| PF_RXRPC | |
| PF_ISDN | |
| PF_PHONET | |
| PF_IEEE802154 | |
| PF_CAIF | |
| PF_ALG | |
| PF_NFC | |
| PF_VSOCK |