netdev - Re: TKIP encryption should allocate enough tailroom

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Message-ID: <20070118131631.GA24622@ee.oulu.fi>
Date:	Thu, 18 Jan 2007 15:16:31 +0200
From:	Pekka Pietikainen <pp@...oulu.fi>
To:	Brandon Craig Rhodes <brandon@...desmill.org>
Cc:	netdev@...r.kernel.org
Subject: Re: TKIP encryption should allocate enough tailroom

On Wed, Jan 17, 2007 at 11:46:35AM -0500, Brandon Craig Rhodes wrote:
> Having further reviewed my code, I have changed my mind; the
> ieee80211_crypt_tkip routines are not designed to be responsible for
> creating enough headroom and tailroom.  The "hostap" driver should be
> doing this.  In fact, I now see that the "hostap" driver actually
> attempts to create enough headroom and tailroom, but computes them
> incorrectly.
Even then, if ieee80211_tkip_encrypt() didn't produce debug output for the
not enough space-case, should that be added to catch other
potentially broken drivers?
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