IEEE80211_RADIOTAP_DATA_RETRIES for tx frames?

IEEE80211_RADIOTAP_DATA_RETRIES for tx frames?

[bruno randolf]

hello!

while working on packet injection for madwifi i came across the following 
question:

can we use the IEEE80211_RADIOTAP_DATA_RETRIES for injected TX frames to 
specifiy the number of retries to be used? 

this usage seems to be slighty different from the strict specification of 
radiotap for this field (at least the version of the header we have included 
in madwifi now) because it was concerned with received data frames only, and 
we apply it to all kinds of frames to be TXed:

/*
 * IEEE80211_RADIOTAP_DATA_RETRIES      u_int8_t        data
 *
 *     Number of unicast retries a transmitted frame used.
 */

could we extend the meaning of this field to be applicable to transmit frames 
too?

bruno

Re: IEEE80211_RADIOTAP_DATA_RETRIES for tx frames?

[David Young]

On Wed, Nov 28, 2007 at 11:27:59AM +0900, bruno randolf wrote:
> hello!
> 
> while working on packet injection for madwifi i came across the following 
> question:
> 
> can we use the IEEE80211_RADIOTAP_DATA_RETRIES for injected TX frames to 
> specifiy the number of retries to be used? 
> 
> this usage seems to be slighty different from the strict specification of 
> radiotap for this field (at least the version of the header we have included 
> in madwifi now) because it was concerned with received data frames only, and 
> we apply it to all kinds of frames to be TXed:
> 
> /*
>  * IEEE80211_RADIOTAP_DATA_RETRIES      u_int8_t        data
>  *
>  *     Number of unicast retries a transmitted frame used.
>  */
> 
> could we extend the meaning of this field to be applicable to transmit frames 
> too?

I think that we should.  I intend to use it that way, myself.

Dave

-- 
David Young             OJC Technologies
dyoung-eZodSLrBbDpBDgjK7y7TUQ@public.gmane.org      Urbana, IL * (217) 278-3933 ext 24

Re: IEEE80211_RADIOTAP_DATA_RETRIES for tx frames?

[bruno randolf]

On Wednesday 28 November 2007 12:15:58 David Young wrote:
> On Wed, Nov 28, 2007 at 11:27:59AM +0900, bruno randolf wrote:
> > hello!
> >
> > while working on packet injection for madwifi i came across the following
> > question:
> >
> > can we use the IEEE80211_RADIOTAP_DATA_RETRIES for injected TX frames to
> > specifiy the number of retries to be used?
> >
> > this usage seems to be slighty different from the strict specification of
> > radiotap for this field (at least the version of the header we have
> > included in madwifi now) because it was concerned with received data
> > frames only, and we apply it to all kinds of frames to be TXed:
> >
> > /*
> >  * IEEE80211_RADIOTAP_DATA_RETRIES      u_int8_t        data
> >  *
> >  *     Number of unicast retries a transmitted frame used.
> >  */
> >
> > could we extend the meaning of this field to be applicable to transmit
> > frames too?
>
> I think that we should.  I intend to use it that way, myself.

thanks dave!

i commited code to the madwifi svn which does that now.

bruno