[PATCH 30/42] AP: MLD: Update all PMKSAs in the AP MLD

[Jouni Malinen]

On Tue, Nov 21, 2023 at 01:51:44AM +0200, Andrei Otcheretianski wrote:
> When a non-AP MLD station associates with an AP MLD and the
> association is a multi-link association, the PMKSA that is
> created as part of the connection establishment is also
> relevant for the other links included in the association.
> Thus, update the PMKSA cache of the other BSSs (that are
> part of the MLD connection) with the same PMKSA information.
> 
> This is useful for cases, where after initial connection
> establishment, the station disconnect and connects again,
> but instead of using the original link for the connection
> it uses a different link.

This does not feel correct. For AP MLD, it would make more sense to have
a separate MLD level PMKSA cache for all non-AP MLDs. Or alternatively,
such search the PMKSA cache entry from all affiliated APs instead of
duplicating information into all BSSs.

-- 
Jouni Malinen                                            PGP id EFC895FA