Re: [PATCH] mac80211: remove shared key todo

[Dan Williams <dcbw@redhat.com>]

On Mon, 2008-06-16 at 22:46 +0200, Johannes Berg wrote:
> > > I have no idea. Usually, you don't even do open auth for IBSS, there's
> > > just no point. Unless you get into IBSS with encryption, but we don't
> > > really support that yet, and we probably never will actually support
> > > that without the userspace MLME in wpa supplicant.
> > 
> > IBSS + WEP works at least for ipw2200 and other non-mac80211 cards; I
> > can check it out with mac80211 if you like.
> 
> Yeah, no, +WEP should work. I haven't specifically tested it but I see
> no reason for it not to work.
> 
> > Any particular reason IBSS would require a userspace MLME?  There
> > shouldn't be any rekeying of any kind with adhoc, since there's no
> > central station to coordinate the rekying.  AFAIK with IBSS you just use
> > the given PSK at creation time, and never change it.  That shouldn't be
> > too hard to handle, right?
> 
> Well, I was really thinking of RSN/WPA, and last I checked
> wpa_supplicant didn't even support that with IBSS, and I think it
> requires userspace MLME because you have to do the auth/assoc sequence
> with each peer etc.

wpa_supplicant _should_ support WPA-PSK with IBSS, you set
proto=WPA-NONE to do this and I assume it just sends the PSK to the
driver and never changes it.  I haven't tested it a long time though.

Dan