hostap 0.2.3 sends disassoc/deauth while in monitor mode

[Denis Vlasenko]

Hi Jouni, Luis, Margit, Andreas,

I am playing with hostap, prism54 and acx100 in the same box
simultaneously, and as expected, I see a lot of interesting things :)

Lets start with hostap.

hostap is the most mature driver, and so far, I've seen only
one buglet while hostap is in monitor mode.

It looks like while it was in AP mode (because it is default
mode for hostap), acx100 or prism54 associated with it.

And now, sitting in monitor mode, hostap all of a sudden
sends disassoc/deauth to the poor STA, which confuses
young and inexperienced acx100 driver:

Jul 26 21:38:00 shadow kernel: wifi0: RX: len(2372) > MAX(2304)
Jul 26 21:38:10 shadow last message repeated 20 times
Jul 26 21:38:10 shadow kernel: ERROR: don't know how to get sensitivity for this radio type, please try to add that!
Jul 26 21:38:10 shadow kernel: wifi0: RX: len(2372) > MAX(2304)
Jul 26 21:38:16 shadow last message repeated 8 times
Jul 26 21:38:18 shadow kernel: Tx error occurred (error 0x20)!! (excessive Tx retries due to either distance too high or unable to Tx or Tx fr
Jul 26 21:38:21 shadow last message repeated 14 times
Jul 26 21:38:22 shadow kernel: wifi0: RX: len(2372) > MAX(2304)
Jul 26 21:38:53 shadow last message repeated 15 times
Jul 26 21:38:55 shadow kernel: wifi0: STA 00:00:00:00:00:00 did not ACK activity poll frame
Jul 26 21:38:56 shadow kernel: wifi0: sending disassociation info to STA 00:04:e2:64:15:e5(last=298171, jiffies=599171)
Jul 26 21:38:57 shadow kernel: wifi0: sending deauthentication info to STA 00:04:e2:64:15:e5(last=298171, jiffies=600171)
Jul 26 21:38:57 shadow kernel: Processing deauthen packet. Hmm, should this have happened?
Jul 26 21:38:59 shadow kernel: Sending authentication1 request, awaiting response!
Jul 26 21:38:59 shadow kernel: Sending association request, awaiting response! NOT ASSOCIATED YET.
Jul 26 21:38:59 shadow kernel: ASSOCIATED!
Jul 26 21:39:05 shadow kernel: NETDEV WATCHDOG: wlan0: transmit timed out
Jul 26 21:39:05 shadow kernel: acx100: Tx timeout!
Jul 26 21:39:09 shadow kernel: NETDEV WATCHDOG: wlan0: transmit timed out
Jul 26 21:39:09 shadow kernel: acx100: Tx timeout!
Jul 26 21:39:13 shadow kernel: NETDEV WATCHDOG: wlan0: transmit timed out
Jul 26 21:39:13 shadow kernel: acx100: Tx timeout!
Jul 26 21:39:17 shadow kernel: NETDEV WATCHDOG: wlan0: transmit timed out
Jul 26 21:39:17 shadow kernel: acx100: Tx timeout!
Jul 26 21:39:21 shadow kernel: NETDEV WATCHDOG: wlan0: transmit timed out
Jul 26 21:39:21 shadow kernel: acx100: Tx timeout!

Next post will tell you a story about prism54.
--
vda