Re: Handling RADIOTAP_EXT

[Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>]

On Wed, 2012-03-07 at 09:20 +0100, Roberto Riggio wrote:
> On 03/07/2012 09:10 AM, Johannes Berg wrote:
> > Can you elaborate what you mean? Do you want to keep something while
> > using the library?
> 
> Let's assume that I'm the the following situation:
> 
> ---
> RATE (1) 54 Mbps
> COUNT (1) 3
> ---
> RATE (2) 18 Mbps
> COUNT (2) 3
> ---
> RATE (3) 6 Mbps
> COUNT (3) 3
> ---
> 
> When I'm iterating over the header I could keep track of the namespace 
> by incrementing an index after I have found the RETRIES field. This will 
> work because the RETRIES field is always after the RATE field so my 
> index is consistent.
> 
> On the other hand, if in the header MCS and RETRIES the approach above 
> will not work, since the MCS field is after the RETRIES field.
> 
> So I was wondering if there is a way, while iterating over an header, to 
> known how many time the RADIOTAP_NAMESPACE (or the EXT) field has been 
> found.

Ah, no, not with the library as it is today. I suppose we could add a
flag "inform me of namespace boundaries" or something like that.

johannes