SAE: Reject association for no PMKID match only for PMKSA caching
Authenticator needs to have a PMKSA corresponding to a PMKID (if
present) included by the STA in (Re)Association Request frame if PMKSA
caching is attempted to be used. In case of SAE, this follows Open
System authentication. IEEE Std 802.11 mandates the AP to reject
(re)association trying to use PMKSA caching for SAE authentication.
While the PMKID (if any) in the RSNE in (Re)Association Request frame
following SAE authentication (i.e., in the case of no PMKSA caching) is
not really supposed to include an unknown PMKID, the standard does not
require the AP to reject association. The PMKSA that was just derived
using SAE authentication can be used regardless of which PMKID(s) are
indicated in the (Re)Association Request frame.
Signed-off-by: Sai Pratyusha Magam <quic_smagam@quicinc.com>