Ethereal-dev: Re: [Ethereal-dev] Voip Calls analysis and Graph analysis

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From: Guy Harris <gharris@xxxxxxxxx>
Date: Wed, 02 Feb 2005 01:20:00 -0800
Alejandro Vaquero wrote:

Attached is the new "Voip call analysis" patch file and a screen shot of a SIP to H323 interop call. It is based on Francisco Alcoba source, and added support of H323, RTP and a Graph analysis. The Graph interface can also be used in other no Voip analysis.

I didn't see any references to "gtk" in a case-insensitive search of "voip_calls.[ch]", so it appears that, at least for the graphing, the Graph code handles all the GUI stuff - that's good, as it means that, for other GUI tookits, a "graph_analysis.c" module would be needed, but "voip_calls.c" would work with that without having to be changed. "voip_calls_dlg.c" has GTK+ code - some other mechanism would be needed to make that GUI toolkit-independent (and would be needed for other taps that have a UI, if the taps are to be GUI toolkit-independent).

   And the "Graph Analysis" has:
- Graph up to ten columns or "nodes". Each "node" it is defined as an IP address.

Perhaps "nodes" should be an array of "address" structures, as defined in "epan/address.h"; the "data" member of those structures would presumably point to mallocated data. Similarly, "ip_src" and "ip_dst" would be "address" structures (and I'd advise making "port_src" and "port_dst" 32 bits, in case some protocol has 32-bit values that would correspond to port numbers). If that can be done, a node could be any type of address in the "address_type" enum in "epan/address.h"; "address_to_str()" could be used instead of "ip_to_str()".