On Fri, Jun 14, 2024 at 02:06:45AM +0000, David Lin wrote:
> > From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> > Sent: Wednesday, June 12, 2024 9:12 PM
> > To: David Lin <yu-hao.lin@xxxxxxx>
> > Cc: linux-wireless@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> > briannorris@xxxxxxxxxxxx; kvalo@xxxxxxxxxx; francesco@xxxxxxxxxx; Pete
> > Hsieh <tsung-hsien.hsieh@xxxxxxx>; Francesco Dolcini
> > <francesco.dolcini@xxxxxxxxxxx>
> > Subject: [EXT] Re: [PATCH v10 2/2] wifi: mwifiex: add host mlme for AP mode
> >
> > Caution: This is an external email. Please take care when clicking links or
> > opening attachments. When in doubt, report the message using the 'Report
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> >
> >
> > Hi David,
> >
> > On Thu, Apr 18, 2024 at 02:06:26PM +0800, David Lin wrote:
> > > Add host based MLME to enable WPA3 functionalities in AP mode.
> > > This feature required a firmware with the corresponding V2 Key API
> > > support. The feature (WPA3) is currently enabled and verified only on
> > > IW416. Also, verified no regression with change when host MLME is
> > > disabled.
> > >
> > > Signed-off-by: David Lin <yu-hao.lin@xxxxxxx>
> > > Reviewed-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>
> > > ---
> > >
> >
> > > diff --git a/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > b/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > index 491e36611909..073c665183b3 100644
> > > --- a/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > +++ b/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > @@ -72,6 +72,10 @@ int mwifiex_set_secure_params(struct
> > mwifiex_private *priv,
> > > bss_config->key_mgmt =
> > KEY_MGMT_PSK;
> > > }
> > > break;
> > > + case WLAN_AKM_SUITE_SAE:
> > > + bss_config->protocol = PROTOCOL_WPA2;
> > > + bss_config->key_mgmt = KEY_MGMT_SAE;
> > > + break;
> >
> > Shouldn't this be |= PROTOCOL_WPA2 and |= KEY_MGMT_SAE?
> > Clearing the other flags when SAE is enabled looks wrong to me.
> >
> > Sascha
> >
>
> These fields are used for the configuration of FW, this is the correct setting.
This is done in a loop iterating over the different AKM suites, with your
patch this looks like this:
for (i = 0; i < params->crypto.n_akm_suites; i++) {
switch (params->crypto.akm_suites[i]) {
case WLAN_AKM_SUITE_8021X:
if (params->crypto.wpa_versions &
NL80211_WPA_VERSION_1) {
bss_config->protocol = PROTOCOL_WPA;
bss_config->key_mgmt = KEY_MGMT_EAP;
}
if (params->crypto.wpa_versions &
NL80211_WPA_VERSION_2) {
bss_config->protocol |= PROTOCOL_WPA2;
bss_config->key_mgmt = KEY_MGMT_EAP;
}
break;
case WLAN_AKM_SUITE_PSK:
if (params->crypto.wpa_versions &
NL80211_WPA_VERSION_1) {
bss_config->protocol = PROTOCOL_WPA;
bss_config->key_mgmt = KEY_MGMT_PSK;
}
if (params->crypto.wpa_versions &
NL80211_WPA_VERSION_2) {
bss_config->protocol |= PROTOCOL_WPA2;
bss_config->key_mgmt = KEY_MGMT_PSK;
}
break;
case WLAN_AKM_SUITE_SAE:
bss_config->protocol = PROTOCOL_WPA2;
bss_config->key_mgmt = KEY_MGMT_SAE;
break;
default:
break;
}
}
It looks wrong to overwrite bss_config->protocol and
bss_config->key_mgmt in each iteration of this loop. If that would be
correct, you wouldn't need a loop at all, but could instead configure
based on the last AKM suite entry.
In my understanding the bits in bss_config->key_mgmt should be ored
together depending on the possible AKM suites which is also what the
downstream driver does.
Sascha
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