netdev - Re: [PATCH] PS3: gelic: Add wireless support for PS3

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Date:	Fri, 14 Dec 2007 07:58:47 -0500
From:	Dan Williams <dcbw@...hat.com>
To:	Masakazu Mokuno <mokuno@...sony.co.jp>
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	geoffrey.levand@...sony.com,
	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
Subject: Re: [PATCH] PS3: gelic: Add wireless support for PS3

On Fri, 2007-12-14 at 14:03 +0900, Masakazu Mokuno wrote:
> On Thu, 13 Dec 2007 16:13:38 -0500
> Dan Williams <dcbw@...hat.com> wrote:
> 
> > One more question; does the driver work with wpa_supplicant for WPA, or
> > does the firmware capture the EAPOL frames and handle the 4 way
> > handshake internally?  Ideally the firmware would have the ability to
> > pass those frames up unmodified so the driver would at least have a
> > _hope_ of 802.1x capability.  Does the firmware handle Dynamic WEP at
> > all?
> > 
> > Basically, what happens when the AP you've just associated with starts
> > sending you EAPOL traffic to start the 802.1x process?
> 
> The PS3 wireless device does the association and 4way handshake in its
> firmware/hypervisor.  No interventions between them are allowed to the guest
> OSes.  
> All frames which are sent/received from/to before the connection process
> completed seems to be dropped by the hardware.  Only the static WEP is
> supported.

That sort of sucks; but I guess there's not too much you can do about
it.  That probably means that using wpa_supplicant + WPA is completely
out of the picture, which unfortunately makes the PS3 wireless unlike
any other card, which would require special-casing the PS3 in userspace
tools.

Dan


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