I've been trying to implement Mikrotik IE. It is a vendor IE that carries stuff like radio name. Even though it is Mikrotik specific, UBNT has a patch for madwifi: https://github.com/jhairtt/ubnt-hal-0.7.379/blob/master/patches/madwifi-dfs-r3319-20080201/074-mtik-ie.patch
The IE is sent in beacon and assoc/reassoc frames. I think the correct place for this is mac80211, but I'm not sure how should I expose a switch to this functionality. Is there something like ioctl, or do I have to implement a switch in nl80211, then in cfg80211 and then finally in mac80211? Any advice is greatly appreciated.
