Re: was: Adding Files to Wireshark (new developer)

["Chaswi Przellczyk" <cp70 () gmx de>]

-------- Original-Nachricht --------
> Datum: Fri, 01 Apr 2011 14:36:50 -0400
> Von: Bill Meier <wmeier () newsguy com>
> An: Developer support list for Wireshark <wireshark-dev () wireshark org>
> Betreff: Re: [Wireshark-dev] was: Adding Files to Wireshark (new developer)

> On 4/1/2011 12:57 PM, Chaswi Przellczyk wrote:
>
> > Dear Stephen,
> >
> > that would be a good way to get this solved. I went ahead and
> > modified packet-rtp.c to add a field for a sampling-rate preference.
> > That works nice. BUT the preferences are typically used in the
> > dissectors, which is not true for my case. I can make the variable
> > visible in all files (make it truly global), but I'm wondering if
> > that's the right way to go. At the very least it would differ from
> > what I've seen in other source-files. Is there a different way of
> > accessing these preferences "correctly"?
>
>
> Take at look at the data struct passed to register_tap() (or whatever
> it's called) when the tap is created by the dissector.
>
> I'm not a 'tap' expert, but I think a ptr to that struct is passed to
> the tap callback fcn called for each frame.
>
> Also  see doc/README.tapping

Dear Bill,

thanks again for your time and effort. I have to admit it's a new feeling in programming to actually have the data, but 
being unable to get it to the point of the program where you need it. Makes me feel young and inexperienced again :(

I did take a look at the tapping-README and I believe you are referring to register_tap_listener(...) and 
"the_tapinfo_struct" or in my case rtpstream_tapinfo_t

The call to register_tap_listener(...) for my case is in rtp_stream.c, which is located in ...\Wireshark\gtk
My tap-routines along with the global variable for the sampling-rate-defaults are in tap-rtp-common.c are 
inpacket-rtp.c  located in  ...\wireshark\epan\dissectors and finally the file where I want to use it is 
tap-rtp-common.c located in ...\wireshark\.
I believe these 3 files result in 3 different compilation targets - I haven't been able to access the global variable 
for my default-sampling-rate from either of the 2 other locations. Not even when exporting it from dissectors.lib.
Sorry to be so ignorant, but could you please shed some more light to get me started?

Thanks - and have a nice weekend!
CP.

-- 
GMX DSL Doppel-Flat ab 19,99 Euro/mtl.! Jetzt mit 
gratis Handy-Flat! http://portal.gmx.net/de/go/dsl
___________________________________________________________________________
Sent via:    Wireshark-dev mailing list <wireshark-dev () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-dev
Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
             mailto:wireshark-dev-request () wireshark org?subject=unsubscribe