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Message-ID: <CAK-6q+jf2EWASVGkTXLkD2V4gpzjEAkYTXt=rcZRXTDhO5so3w@mail.gmail.com>
Date:   Mon, 23 Jan 2023 09:36:35 -0500
From:   Alexander Aring <aahringo@...hat.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        linux-wpan@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org,
        David Girault <david.girault@...vo.com>,
        Romuald Despres <romuald.despres@...vo.com>,
        Frederic Blain <frederic.blain@...vo.com>,
        Nicolas Schodet <nico@...fr.eu.org>,
        Guilhem Imberton <guilhem.imberton@...vo.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH wpan-next 0/2] ieee802154: Beaconing support

Hi,

On Mon, Jan 23, 2023 at 8:50 AM Alexander Aring <aahringo@...hat.com> wrote:
>
> Hi,
>
> On Mon, Jan 23, 2023 at 7:49 AM Miquel Raynal <miquel.raynal@...tlin.com> wrote:
> >
> > Hi Alexander,
> >
> > > > btw: what is about security handling... however I would declare this
> > > > feature as experimental anyway.
> > >
> > > I haven't tested the security layer at all yet, would you have a few
> > > commands to start with, which I could try using eg. hwsim?
> >
> > Using the dev_queue_xmit() doest not bypasses the whole stack anymore,
> > the beacons got rejected by the llsec layer. I did just hack into it
> > just to allow unsecure beacons for now:
> >
>
> Stupid questions: do the beacon frames need to be encrypted? Because
> we bypass llsec always with those mlme functionality.
>
> btw: there is currently an issue with the llsec hooks. You will not
> see the transmit side being encrypted via wireshark (so far I
> remember) because the capture is before encryption...

You can do with hwsim a sniffer device, just create a phy and have
from every node an edge to it, then create a monitor interface on it
and you will see all frames on air correctly encrypted and let
wireshark decrypt it. This is a workaround I had.

- Alex

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