Re: mac80211 noob question

[VN <vnik5287@gmail.com>]

Ah I guess I am. I just assumed that since I'm able to capture data
frames sent from node A to node B (w/o radiotap?), there should be
some way to check which ones were acknowledged by node B. Thanks for
your prompt response!

On Sat, Dec 12, 2009 at 9:25 PM, Johannes Berg
<johannes@sipsolutions.net> wrote:
> On Sat, 2009-12-12 at 21:18 +1100, VN wrote:
>> Hi list,
>> I've recently started hacking mac80211/ath5k in order to implement my
>> idea of cooperative relaying. I had a good look at the mac80211 code
>> and couldn't find anything that deals with ACKing... or is it done in
>> firmware and some flag is set to indicate that the frame has been
>> acknowledged? What I'm trying to achieve right now is to receive a
>> data frame while in monitor mode (e.g. ieee80211_rx_start_monitor())
>> and then check if it has been acknowledged by the destination node.
>> would be very grateful for any tips!
>
> I think you're confused? If you receive a frame, your own hardware will
> have sent the ACK. If you TX a frame, you will see it on the monitor
> iface with the radiotap ack flag set or clear, see hostapd for example
> code.
>
> johannes
>