Wireshark mailing list archives
Re: TNS data dissector
From: Jeff Morriss <jeff.morriss.ws () gmail com>
Date: Fri, 18 May 2012 10:13:57 -0400
Andrej van der Zee wrote:
http://anonsvn.wireshark.org/wireshark/trunk/epan/dissectors/packet-tns.c ?As far as I can see in Wireshark, it does not dissect the data inside a TNS packet, it shows it as binary. For example, I would like to be able to see the SQL queries going over the wire.So i guess it is impossible to look inside the data in a TNS packet and we cannot see the actual SQL queries inside the data? Is there a specific reason why it doesnt dissect the data?
A quick read about TNS: https://en.wikipedia.org/wiki/Transparent_Network_Substrateseems to indicate that it's basically a tunneling protocol. So to decode the payload Wireshark would need to know what the contents are. Does the protocol have some indication of its payload? If not, maybe a TNS preference or maybe heuristics could be used to determine the payload. (If the payload is usually the same that could be a start or the default preference value.)
This kind of thing can be implemented but we'd need sample capture(s) of different kinds of things being transported over TNS (of course with a description of what those things are) all logged in an bug report.
As for the reason Wireshark doesn't currently do it, it's probably the usual reason: no one's gotten around to it or felt the need.
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Current thread:
- TNS data dissector Andrej van der Zee (May 14)
- Re: TNS data dissector Martin Visser (May 15)
- Re: TNS data dissector Andrej van der Zee (May 15)
- Re: TNS data dissector Andrej van der Zee (May 18)
- Re: TNS data dissector Jeff Morriss (May 18)
- Re: TNS data dissector Maynard, Chris (May 18)
- Re: TNS data dissector Andrej van der Zee (May 15)
- Re: TNS data dissector Martin Visser (May 15)