Trick for 802.11s
This package implements the function of MAC-whitelisting for IEEE 802.11s, according that post, as far as I understood, it is planned to implement in hostapd.
Hotplug script based on Freifunk practices extracts a maclist from the file /etc/config/wireless, then daemon compares it with associated stations and blocks all unknowns. It checks for changes every 5 seconds. Option mesh_auto_open_plinks must be set in 1