[Click] Feedback from madwifi in Click

[Peter De Cleyn]

Hi David,
I know I can find it in these headers, actually  all I need for now is to
know if a packet was successfully transmitted (using the FilterFailures
etc). I have running Click scripts for this, but I used to use them in
combination with the older madwifi drivers, so I had to set up a ath0raw
interface at that time.

Now in the current driver, this functionality should be available through
the monitor VAP, but I do not receive any packets back from the the system.
I hope I make myself clear. Normally this is what happens:
a packet to be transmitted via the wireless interface is encapsulated
(Prism2Encap/radiotapencap/..) and delivered to the ToDevice element.
Lateron, the same packet will be received back from the FromDevice element,
with the Prism2/ratiota.... headers filled with the transmission
information. It this last packet I miss. I don't receive any feedback
packets.

If you have a setup running which does gets these feedback packets, could
you describe me what you did to get it running? I'm using a CVS click, an
unpatched 2.6.22 kernel, madwifi 0.9.3.1.99-2.

On Wed, Feb 27, 2008 at 10:19 AM, David Fuste <dfuste at ac.upc.edu> wrote:

> Hi Peter,
> what do you mean exactly for the wifi feedback mechanism?
> If you mean SSI signal, SSI noise, data rate, etc...you can obtain them
> in the radiotap, prism or atheros headers, added by madwifi to the top
> of the packet.
>
> david
>
> Peter De Cleyn wrote:
> > Has anyone recently used the Wifi Feedback mechanism in Click in
> combination
> > with the recent MadWifi drivers?
> >
> > Following the information from the MadWifi site I am able to contruct a
> > monitor VAP which allows me to send and receive raw 802.11 frames.
> However I
> > don't seem to get any feedback information anymore from the wireless
> driver.
> >
> >
> > Any hints on how to (re)activate this behaviour are welcome. In the past
> I
> > used the raw device with previous version of the Madwifi driver, but I
> seem
> > not succeed in compiling this for the more recent kernels.
> >
> > regards
> >
> > Peter
> > _______________________________________________
> > click mailing list
> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >
>
> --
> ========================================================================
>  0 0 0  David Fusté i Vilella       |    Dept. of Comp. Architecture
>  0 0 0  Ph.D. Student               |    UPC-Campus Nord, D6-001
>  0 0 0  email: dfuste at ac.upc.edu    |    C/ Jordi Girona, 1-3
>  U P C  phone: 0034 93 401 67 83    |    08034 Barcelona - SPAIN
>                www: http://personals.ac.upc.edu/dfuste/
> ========================================================================
>
>