[ath9k-devel] ath9k_htc - Netgear WNDA3200 - monitor mode

[Oleksij Rempel <linux@rempel-privat.de>]

Am 21.03.2016 um 22:28 schrieb Roger James:
> Hi,
> 
> I am trying to use a Netgear WNDA3200 usb dongle plugged into a box 
> running Ubuntu 15.10 to monitor a WPA2_PSK encrypted network. This stick 
> uses the AR7010+AR9280 chipsets.  For the particular problem I am 
> investigating I need to as much of the traffic on the channel as I can. 
> However I seem to miss almost all of the unicast traffic. I have come 
> across this problem many times before on other wireless chipsets. I was 
> hoping the Atheros would be different. I can see unicast 802.11 
> management traffic but not protected unicast data/qos data frames. I 
> have hacked the driver to give me  the current filter settings via 
> debugfs and this is what I see.
> 
> RXFILTER: 0xc03f UCAST MCAST BCAST CONTROL BEACON PROM PSPOLL 
> MCAST_BCAST_ALL
> 
> Which looks OK to me. I have also checked that all the packets seen by 
> driver make it up to user level.
> 
> Is this expected behaviour?
> 
> Is this something to do with htc USB chipset?
> 
> Is this something to do with a Netgear customisation?
> 
> Has anyone else seen this kind of behaviour?
> 
> Is there any way round it?
> 
> Help!! This is driving me nuts. I have done so many tests with this and 
> other adapters that I have lost the plot.
> 
> I have a whole slew of tests and results available on request. But I 
> won't clutter the list with them.

I would not guarantee that all filter settings are passed correctly. You
will need need to check it in the firmware.
https://github.com/qca/open-ath9k-htc-firmware


-- 
Regards,
Oleksij

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