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Subject: Re: [PATCH 10/10] qtnfmac: support MAC address based access control
From: Johannes Berg <johannes@sipsolutions.net>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
        Kalle Valo <kvalo@codeaurora.org>,
        linux-wireless@vger.kernel.org,
        Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>,
        Avinash Patil <avinashp@quantenna.com>
Date: Tue, 19 Dec 2017 17:58:47 +0100
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On Tue, 2017-12-19 at 13:37 +0100, Arend van Spriel wrote:
> On 12/19/2017 12:19 PM, Sergey Matyukevich wrote:
> > > > Not yet. At the moment enum nl80211_ap_sme_features in uapi/linux/nl80211.h
> > > > is commented out. For MAC-based ACL the following things are being checked
> > > > on wiphy registration: complete flag WIPHY_FLAG_HAVE_AP_SME, non-zero
> > > > max_acl_mac_addrs, and set_mac_acl cfg80211 callback.
> > > 
> > > I guess that's enough then? Userspace can check max_acl_mac_addrs as
> > > well, so it can just use that?
> > 
> > Correct, that is what hostapd is doing. I was simply surprised by the fact
> > that MAC-based ACL support implies full-fledged AP SME support. Though
> > your almost convinced me that this is ok and other wireless cards simply
> > do not exist.
> 
> So the question seems to be here: what shall drivers/firmware implement 
> to allow flag WIPHY_FLAG_HAVE_AP_SME being set. The kerneldoc is a bit 
> short in providing guidance:
> 
>   * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME

They should implement the AP SME? :)

That is, handling auth/assoc/etc.

With the SAE-"offload"-to-host those lines are blurring again though.

johannes