Saturday, December 4, 2010

802.11n update - WPA works

I traced down WPA not working to broken CCMP support in FreeBSD-HEAD.

This has been broken for some time. It was introduced in r204364 which enabled the multicast key search. I'm not sure why it's broken - I'll have to go through the ath9k/ath5k code; maybe even madwifi has some more up to date code in this area.

In any case, that's one less thing to worry about for now. I'm pretty sure that multi-VAP mode has more issues than this so I'll put that on hold for a while.

Next - making the 11n TX path a run-time check rather than a compile-time check; then test it with legacy chipsets to ensure things haven't broken.

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