AW: wpa_supplicant ndiswrapper
j at w1.fi
Sun Aug 10 10:43:04 EDT 2008
On Thu, Aug 07, 2008 at 08:34:45PM +0200, Gerhard Schaden wrote:
> Can you think of the parts in wpa_supplicant, which may have race conditions? Is this new packet which looks like the 3/4 handshake, queued somewhere in wpa_supplicant or rather in the driver, ndiswrapper, kernel?
The most likely race condition is in the driver when wpa_supplicant
sends msg 4/4 and immediately after that sets the key. If the driver
ends up encrypting the frame that was sent before the key configuration,
4-way handshake will fail. A wireless sniffer that could record all the
frames between the AP and the client would be a helpful tool for
figuring out whether this is indeed the case here.
Jouni Malinen PGP id EFC895FA
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