Wireshark · Ethereal-dev: Re: [Ethereal-dev] patch to M3UA to call MTP3 dissector even when !tree

[Jeff Morriss <jeff.morriss@xxxxxxxxxxx>]

Hi Michael,

If I load a sample capture file (actually 'snoop' output from one of our 
testers) like this (without a preferences file for the moment):

./ethereal -omtp3.standard:ITU -om3ua.version:"Internet Draft version 5" 
-r snoop.out.gz

the Protocol field says "M3UA" and I don't see (SCCP) UDTs in the Info 
column.

If I then add a filter (e.g., "m3ua" or "mtp3") the Protocol column gets 
set to SCCP and I see UDTs in the Info column.  (Also the protocol tree 
lists MTP3, SCCP, etc.)

Regards,
-Jeff

Michael Tuexen wrote:
> Hi Jeff,
>
> I have a capture file with version 05 M3UA in it. When I load it without 
> any display
> filter all upper layers (up to SCCPMGT) are displayed.
>
> Could you tell me under which condition the current version of the M3UA 
> dissector
> does not work, i.e. does not see the upper layer. thank you very much 
> for the
> clarification.
>
> Best regards
> Michael
> On Monday, Jan 27, 2003, at 21:24 Europe/Berlin, Jeff Morriss wrote:
>
> > Hi list, hi Michael,
> >
> > Right now MTP3 (and higher protocols) only get dissected on version 
> > -05 and -06 M3UA messages if there is a filter.
> >
> > Here's a patch to the M3UA dissector which pushes down the "if 
> > (!tree)" evaluation so that the MTP3 dissector will be called even 
> > when 'tree' is NULL (e.g., when there is no filter).
> >
> > Regards,
> > -Jeff
> >
> > --
> > Jeff Morriss
> > Senior Software Support Engineer
> > Ulticom, Inc.
> > Helpdesk: +1-856-787-2765
> > Fax: +1-856-222-9947
> > <packet-m3ua.c.patch.gz>


--
Jeff Morriss
Senior Software Support Engineer
Ulticom, Inc.
Helpdesk: +1-856-787-2765
Fax: +1-856-222-9947