Re: wifi: iwlwifi: SAE fails when AP sends confirm before STA

Johannes Berg <[email protected]> Tue, 13 May 2025 13:46:51 +0200
Newsgroups dev.linux.lists.iwd,org.kernel.vger.linux-wireless
Message-ID <[email protected]>
On Tue, 2025-05-13 at 13:29 +0200, Jan Hendrik Farr wrote:
> 
> There is a an SAE confirm sent by the AP. It's frame 170 in
> capture2.pcapng. It's also retried a number of times after that.

Oops, yes, I didn't catch the different seqno and thought it was all
retries of a single frame.

> There is however no ACK from the client in response to it and it also never
> shows up in iwd.

Right. Clearly this is because we actually leave the channel when we get
the response to the auth frame.

I guess most cases we have the client much faster than the AP, so this
might never be an issue. I guess here you were saying the client wasn't
all that fast in responding.

In fact the AP seems to take ~17.1ms from one frame to the other, and
the client ~20.4ms, though the client has some propagation delay through
the software stack too.

I don't think this is really the right fix, but it might help:
https://p.sipsolutions.net/e852565303ad878b.txt

johannes