Interesting issues with CCMP

Kyle McMartin kyle at engsoc.carleton.ca
Thu Sep 16 10:04:13 EDT 2004


Hello,

When using the latest version of hostap (either 0.2.4, or CVS HEAD) with
CCMP on my WPA2 network with wpa_supplicant, I see a massive
amount of kernel error messages generated...

printk: 267 messages suppressed.
CCMP: decrypt failed: STA=00:06:25:4a:9d:e4
wifi0: decryption failed (SA=00:06:25:4a:9d:e4) res=-5
wifi0: decryption failed (SA=00:06:25:4a:9d:e4) res=-5
(ad infinitum)

The network works, but it seems to be slower than it should.

This is using,

NICID: id=0x8013 v1.0.0 (PRISM II (2.5) Mini-PCI (SST parallel flash))
PRIID: id=0x0015 v1.1.1
STAID: id=0x001f v1.7.4 (station firmware)

[I'd to upgrade the cards firmware]

0000:01:02.0 Network controller: Intersil Corporation Prism 2.5 Wavelan
chipset (rev 01)

My wpa_supplicant.conf stanza for this looks like,

eapol_version=1
network={
        ssid="8021xTest"
        key_mgmt=WPA-EAP
        eap=TLS
        identity="kyle"
        ca_cert="/home/kyle/tmp/kyle.pem"
        client_cert="/home/kyle/tmp/kyle.pem"
        private_key="/home/kyle/tmp/kyle.pem"
        private_key_passwd="<password>"
        # eapol_flags=3
        priority=5
}

Which came in my IBM Thinkpad X30.

Any insight into this would be appreciated.

Also, I'd just like to thank Jouni, and all contributors, for the
excellent driver.

Cheers,
	Kyle.



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