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Re: [PATCHv3] mac80211: dynamic wep

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On Fri, 2007-08-17 at 10:16 -0400, Volker Braun wrote:

> NetworkManager can do that for you, no need to duplicate that in the
> driver where you can't give any useful feedback to the user. Maybe you
> want to test whether your AP _really_ discards unencrypted data? 

Can't really do that since it'll ack the packet anyway :)

> It should be broadcast, you are right.

Don't think it matters much, was just curious.

> The key index is saved later on in key->keyidx. So I wanted to be on the
> safe side and make sure that a legal value is stored there.

Right. I was totally confused about some things and just reread the
standard again :)

> First of all, we violate the standard by looking at the keyindex in case
> of a pairwise key.

I don't think we do look at it, do we? In any case, if it was there I
removed it with the RFC key selection patch.

> Now granted, Cisco also violates it, but in a way
> that is never visible to standards-compliant STAs. We must set the
> keyindex to zero on outgoing pairwise key-encrypted data, but that is
> kind of irrelevant since the AP is forced to ignore that key index on
> receive.

But then I don't understand why we try to set a non-zero key index for
the key.

johannes

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