Re: [PATCH] cfg80211: support 4-way handshake offloading for WPA/WPA2-PSK

[Johannes Berg <johannes@sipsolutions.net>]

On Tue, 2017-02-21 at 11:32 +0100, Arend Van Spriel wrote:
> On 21-2-2017 11:09, Johannes Berg wrote:
> > From: Eliad Peller <eliad@wizery.com>
> > 
> > Let drivers advertise support for station-mode 4-way handshake
> > offloading with a new
> > NL80211_EXT_FEATURE_4WAY_HANDSHAKE_OFFLOAD_STA
> > flag.
> 
> I find use of the term OFFLOAD a bit redundant as it is implied by
> its presence anyway.

Fair enough, we can remove that.

> > Add a new NL80211_ATTR_PMK attribute that might be passed as part
> > of NL80211_CMD_CONNECT command, and contain the PSK (which is the
> > PMK, hence the name.)
> > 
> > The driver/device is assumed to handle the 4-way handshake by
> > itself in this case (including key derivations, etc.), instead
> > of relying on the supplicant.
> > 
> > This patch is somewhat based on this one (by Vladimir Kondratiev):
> > https://patchwork.kernel.org/patch/1309561/.
> 
> It also looks quite like this one we posted a while ago [1]. Our bad
> that we did not follow-up :-p

Indeed, I was looking for the better link (had gmane recorded in the
internal commit log) and found a few that all looked the same ... :)

Would this work for you? We should have wpa_supplicant support too, but
need to ask Andrei to look at that.

johannes