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Re: [PATCH 02/10] wl12xx: AP-mode - fix race condition on sta connection

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On Thu, 2011-01-27 at 00:16 +0200, Arik Nemtsov wrote:

> > If we add the station before the response frame's ACK is received, we
> > still have the race, and we need to delete if we don't get the ACK. If
> > we add the station before we send the assoc response we get rid of this
> > race, but also have to delete if we don't get the ACK. I guess that case
> > is actually nicer in some way since we would have allowed the station to
> > connect, so if spurious data frames go up because we don't get an ACK
> > from the station that's no big deal?
> >
> 
> Maybe there's no need to delete the station even when no ACK is
> received? It will get disconnected after the idle timeout anyway. And
> it already passed authentication, so its not a DOS attack.
> (If that's what you meant as well then I agree)

Yeah -- except there's no timeout in mac80211, of course, so hostapd
really has to delete it.

johannes

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