CCMP and Apple and WPS

Jouni Malinen j at w1.fi
Sun May 11 12:27:44 EDT 2014


On Tue, May 06, 2014 at 06:46:55PM +0200, Drasko DRASKOVIC wrote:
> On Tue, May 6, 2014 at 9:37 AM, Drasko DRASKOVIC
> <drasko.draskovic at gmail.com> wrote:
> > - How to force WPS v1.0 then?

There is not much point in doing that and no plan of supporting such
option in hostapd either.

> > - Any idea why CCMP does not work with Apple devices?

This would be the part that should be resolved.. Could you please
clarify what you mean with "Apple devices"? I have not seen issues with
this on MacBook Air.

> Here is log from iPad trying to connect to hostapd2.1 (below).

> wlan0: STA fc:25:3f:90:a4:b6 WPA: received EAPOL-Key frame (4/4 Pairwise)
> WPA: fc:25:3f:90:a4:b6 WPA_PTK entering state PTKINITDONE
> wpa_driver_nl80211_set_key: ifindex=4 (wlan0) alg=3 addr=0x2f3d20
> key_idx=0 set_tx=1 seq_len=0 key_len=16
>    addr=fc:25:3f:90:a4:b6
> wlan0: AP-STA-CONNECTED fc:25:3f:90:a4:b6
> wlan0: STA fc:25:3f:90:a4:b6 IEEE 802.1X: authorizing port
> wlan0: STA fc:25:3f:90:a4:b6 RADIUS: starting accounting session
> 00000388-00000002
> wlan0: STA fc:25:3f:90:a4:b6 WPA: pairwise key handshake completed (RSN)

This actually shows a successful connection..

> nl80211: Event message available
> nl80211: Drv Event 20 (NL80211_CMD_DEL_STATION) received for wlan0
> nl80211: Delete station fc:25:3f:90:a4:b6
> wlan0: Event DISASSOC (1) received
> wlan0: STA fc:25:3f:90:a4:b6 IEEE 802.11: disassociated
> wlan0: AP-STA-DISCONNECTED fc:25:3f:90:a4:b6

Since there were no timestamps in the log (-t on hostapd command line),
it is a bit difficult to figure out how long a time there was between
these operations. In addition, it is unclear what triggered this
disconnection.

Which WLAN driver are you using on the AP?

-- 
Jouni Malinen                                            PGP id EFC895FA


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