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From: Arend Van Spriel <arend.vanspriel@broadcom.com>
To: Johannes Berg <johannes@sipsolutions.net>, Larry Finger <Larry.Finger@lwfinger.net>
CC: "linux-wireless" <linux-wireless@vger.kernel.org>
Date: Wed, 12 Jun 2024 22:19:21 +0200
Message-ID: <1900e1ae128.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com>
In-Reply-To: <a7a5655f6a62c5795fdfa02e528cc1d93fb6949c.camel@sipsolutions.net>
References: <9b10768c-9fe7-40d9-a0b9-27d11a5e0e48@broadcom.com>
 <a648b5b187e2d01cd1dc47b6737c95ddc25259ae.camel@sipsolutions.net>
 <a7a5655f6a62c5795fdfa02e528cc1d93fb6949c.camel@sipsolutions.net>
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Subject: Re: WPA3 support for mac80211 drivers
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On June 12, 2024 9:08:11 PM Johannes Berg <johannes@sipsolutions.net> wrote:

> On Wed, 2024-06-12 at 20:56 +0200, Johannes Berg wrote:
>> On Wed, 2024-06-12 at 20:51 +0200, Arend van Spriel wrote:
>>> Hi Johannes, Larry,
>>>
>>> I got a query from a brcmsmac user about support for WPA3. I had no idea
>>> what would be needed and actually assumed/hoped mac80211 would take care
>>> of it. My first attempt was looking in patchwork for other mac80211
>>> drivers adding WPA3 and found this one interesting enough:
>>>
>>> https://patchwork.kernel.org/project/linux-wireless/patch/20200526155909.5807-2-Larry.Finger@lwfinger.net/
>>>
>>> It only sets flag IEEE80211_HW_MFP_CAPABLE in hw->flags. So I suggested
>>> to do the same in brcmsmac. Unfortunately no success so can you think of
>>> anything else that would be required from brcmsmac.
>>
>> You need the correct ciphers too (at least BIP, possibly GMAC)
>
> No wait, you said brcmsmac, and it doesn't even have HW crypto?!

It probably has, but apparently we never implemented it.

> Then it seems like it should just work, does wpa_s have errors?

I am waiting for logs/sniffer captures.

Thanks,
Arend


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