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Date:   Fri, 16 Aug 2019 13:10:44 +0200
From:   Josef Miegl <josef@miegl.cz>
To:     Sebastian Gottschall <s.gottschall@newmedia-net.de>
Cc:     linux-wireless@vger.kernel.org
Subject: Re: Implementing Mikrotik IE
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Hello,
setting vendor elements in hostapd works great - but I need to add these
custom elements to assoc/reassoc management frames in station mode.
Given that the vendor elements option in hostapd works great would it be
possible to patch wpa_supplicant for it to work in station mode too?

Does nl80211 allow setting NL80211_ATTR_IE for station mode management
frames?

Also what are the 'evil hacks' you are talking about?

On Fri, Aug 16, 2019 at 06:07:02AM +0200, Sebastian Gottschall wrote:
> Hello
> 
> Since i already have done this for dd-wrt for mac80211 i can tell you, its
> not easy but possible. the most easy way for broadcasting a custom IE
> is just adding a custom IE with its properties to the hostapd configuration.
> it does allow to set such properties
> so you dont need to change anything in mac80211 which requires some evil
> hacks
> 
> Am 15.08.2019 um 17:28 schrieb Josef Miegl:
> > 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.
> >