Problem with acx111

[Dan Williams]

On Thu, 2008-03-27 at 21:49 +0100, Henning Moll wrote:
> On Donnerstag, 27. M?rz 2008, Dan Williams wrote:
> > > State: COMPLETED -> 4WAY_HANDSHAKE
> > > State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
> > > State: GROUP_HANDSHAKE -> COMPLETED
> > > State: COMPLETED -> 4WAY_HANDSHAKE
> > > and so on...
> >
> > This is normal, the driver is periodically rekeying as required by
> > WPA. Periodically you have to do the 4-Way handshake again so you can
> > derive a new pairwise key, which is part of the additional security
> > of WPA.
> 
> Hmm, the problem may be, that this 'rekeying' happens too fast? With 
> another WLAN adapter (USB with zd1211) it stays for several minutes 
> (well infact it stayes forever) in the state GROUP_HANDSHAKE -> 
> COMPLETED. Not with the acx111: the endless loop happens without any 
> break. 
> 
> > Is the issue here that the connection doesn't work with
> > NetworkManager?
> 
> No, neither NetworkManager nor direct usage of wpa_supplicant works. 
> 
> > Because it looks like the log you've posted is OK 
> > AFAICT, with the exception that sometimes the driver seems to return
> > errors when trying to set the PTK during rekey but then seems to
> > recover.
> 
> I produced the log by runnung wpa_supplicant with a single '-d' option. 
> As i said above: Output keeps running as it is a endless loop. But with 
> the other device (zd1211), output stops after

Can you do -ddd -t instead?  It might dump more info than you'd like on
a public mailing list though.  At the very least, please do a -t to get
timestamps so people can see how fast the stuff is happening.

Dan

> State: GROUP_HANDSHAKE -> COMPLETED
> CTRL-EVENT-CONNECTED - Connection to 00:1b:11:38:90:ee completed (auth) 
> [id=0 id_str=]
> wpa_driver_wext_set_operstate: operstate 0->1 (UP)
> WEXT: Operstate: linkmode=-1, operstate=6
> EAPOL: External notification - portValid=1
> EAPOL: External notification - EAP success=1
> EAPOL: SUPP_PAE entering state AUTHENTICATING
> EAPOL: SUPP_BE entering state SUCCESS
> EAP: EAP entering state DISABLED
> EAPOL: SUPP_PAE entering state AUTHENTICATED
> EAPOL: SUPP_BE entering state IDLE
> RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
> RTM_NEWLINK, IFLA_IFNAME: Interface 'eth0' added
> EAPOL: startWhen --> 0
> 
> At this point i am able to retrieve an ip with dhclient an can use the 
> connection as as long as i wish. There's no more output generated by 
> wpa_supplicant.
> 
> Henning
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