Wireshark mailing list archives

Re: Registering protocol details


From: Anders Broman <a.broman58 () gmail com>
Date: Sun, 7 Aug 2016 16:28:12 +0200

Den 7 aug. 2016 1:11 em skrev "Paul Offord" <Paul.Offord () advance7 com>:

Hi Anders,



Thanks for the prompt reply.  I’ve read through exported_pdu.h and I
don’t understand how this helps me.  Is there somewhere I can read more
about using exported_pdu functions?



Thanks and regards…Paul

Instead of writing a fake Ethernet header You could write an exported pdu
header.
I'm not sure that would help you but it gets rid of the faked layer and you
can add meta data in the exported pdu section should you want to.




From: wireshark-dev-bounces () wireshark org [mailto:
wireshark-dev-bounces () wireshark org] On Behalf Of Anders Broman
Sent: 07 August 2016 11:02
To: Developer support list for Wireshark <wireshark-dev () wireshark org>
Subject: Re: [Wireshark-dev] Registering protocol details



Den 7 aug. 2016 11:25 fm skrev "Paul Offord" <Paul.Offord () advance7 com>:

Hi,



I’ve written a small program that converts web logs into pcap-ng files
with a dummy Ethernet header

You could use the exported pdu format
See exported_pdu.h in epan directory. Should you need new tags for meta
information those could be added.
Regards
Anders

I’m now writing a dissector for the resulting pcap-ng file.  The problem
is that the number and meaning of the “columns” in the log is not
predictable – it depends on the web log format settings.  Therefore the
first entry in the pcap-ng file contains the name of the field, a
definition of the data type and the column position.  In the dissector, I
read this first record and then set up an hf_register_info array.  That’s
the background, now my question.



Can I make calls to proto_register_xxx functions in my dissector, or
must they be made from proto_register_xxxx?



Thanks and regards…Paul


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