On Sat, Jan 27, 2007 at 11:45:05AM +1100, Herbert Xu wrote:
> David Miller <[email protected]> wrote:
> >
> > Shaper is actually OK. None of these hardware header callbacks
> > should be invoked if the device is down. Yet, this is what is
> > accidently being allowed in the AF_PACKET socket layer.
>
> Hmm, what if the device goes down after the check?
In fact, the shaper device doesn't even seem to take a ref count of
the device it has attached to. So that device can go away at any time.
What's more, there are drivers that can change hard_header at run-time
(s390).
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
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