[PATCH v3] Add option to disable SAE key_mgmt without PMF

Jouni Malinen j at w1.fi
Sat Nov 5 11:31:25 PDT 2022

On Tue, Oct 25, 2022 at 07:35:10PM +0000, Jeffery Miller wrote:
> Add the `sae_check_mfp` global option to limit SAE when PMF will
> not be selected for the connection.
> With this option SAE is avoided when the hardware is not capable
> of PMF due to missing ciphers.
> With this option SAE is avoided on capable hardware when the AP
> does not enable PMF.
> Allows falling back to PSK on drivers with the
> WPA_DRIVER_FLAGS_SAE capability but do not support the BIP cipher
> necessary for PMF. This enables configurations that can fall back
> to WPA-PSK and avoid problems associating with APs configured
> with `sae_require_mfp=1`.
> Useful when `pmf=1` and `sae_check_mfp=1` are enabled and networks
> are configured with ieee80211w=3 (default) and key_mgmt="WPA-PSK SAE".
> In this configuration if the device is unable to use PMF due to
> lacking BIP group ciphers it will avoid SAE and fallback to
> WPA-PSK for that connection.

Thanks, applied.

Jouni Malinen                                            PGP id EFC895FA

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