netdev - Re: RFC airo : wpa support

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Message-Id: <1181575133.4656.3.camel@xo-28-0B-88.localdomain>
Date:	Mon, 11 Jun 2007 11:18:53 -0400
From:	Dan Williams <dcbw@...hat.com>
To:	matthieu castet <castet.matthieu@...e.fr>
Cc:	Linux Kernel list <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: RFC airo : wpa support

On Sat, 2007-05-05 at 00:52 +0200, matthieu castet wrote: 
> Hi,
> 
> I attach a diff against 2.6.21 for adding wpa support for airo driver.
> In then end of 2005 I manage to make work wpa but the code was really 
> ugly. I manage to find some time to clean it.
> 
> 
> To support wpa, a new interface of the firmware should be used. This 
> interface is incompatible with the old interface and using both 
> interface at the same time make the firmware hang.
> 
> Porting OPEN and WEP mode to new interface need some driver rewrite, and 
> the old interface should be keep for the older cards (or the cards that 
> doesn't have newer firmware).

What's involved in doing this?  Do you have any pointers or sample code
that could be used here?

I'd assume that we'd just use AUTH_CIPHER_WEP/AUTH_CIPHER_NONE and
AUTH_KEY_MGMT_NONE in ConfigRidExtra.  But where does the WEP key
material go, does it get stuffed into the WpaKeyRid too or somewhere
else?

Dan

> That's why I didn't do it, and I added a module parameter for choosing 
> between the old driver behavior (with no wpa support) or the driver with 
> wpa only support.
> 
> 
> The wireless extension handlers are a bit ugly, I will be very happy, if 
> somebody could help me to clean them.
> 
> Any comments are appreciated.
> 
> 
> Matthieu
> 
> 
> PS : the lastest version of the driver can be found in 
> http://svn.gna.org/viewcvs/airo-wpa/branches/kernel/
> 
> PS2 : There is some remaining trace in the driver for debug purpose, 
> that will be removed in the final version

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