ioctl_set
ioctl_set(interface, WG_IOCTL_SET_PRIVATE_KEY, buf);
ioctl_set(interface, WG_IOCTL_SET_LISTEN_PORT, buf);
ioctl_set(interface, WG_IOCTL_ADD_PEER, buf);
ioctl_set(interface, WG_IOCTL_DELETE_PEER, buf);