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Re: [RFC 1/2] mac80211: allow drivers to indicate failed FCS/PLCP checksum

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On Tue, 2007-08-21 at 23:07 +0200, Ivo van Doorn wrote:

> Do we need another flag to indicate ICV errors?
> rt2x00 has the following fields to indicate problems during hardware decryption:
> 	ICV error -> How to report this to mac80211?
> 	MIC error -> The RX_FLAG_MMIC_ERROR flag can be set
> 	invalid key -> Could best be done by just not setting RX_FLAG_DECRYPTED I assume.

I think you either just drop the packet or give it to mac80211 decrypted
but with ICV still on so that mac80211 will verify the ICV (again) and
do whatever is appropriate. But I think dropping it ought to be fine. Do
we want this for monitoring maybe?

johannes

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