Wireshark-dev: [Wireshark-dev] How to build a Wireshark plug-in just for UUI message over Q931?
From: oussem F <[email protected]>
Date: Tue, 27 May 2008 10:23:13 +0000
hello !!

I am a student in France , I am in internship for 4mois;
my 1st mission is to develop a plugin that decodes a Protocol used in the company.
I have installed all the development environment of wireshark,
I have studied how to make the plugin!(no Pb) .

 After I started studying the Protocol to decode .it’s specific protocol in UUI(user_user information element )message

Let me explain briefly the Protocol

* Networking information conveyed in IUU Q931 (User-User information) and the user-user information element is codeded as shown by this protocol:




Octet 1

Length of user –user info


Octet 2

Protocol discriminator:

0x00 :User Specific Protocol


    Octet 3



User information

0xFE = PBX protocol identifier


     Octet 4


                                                                User information .......








                                                User –user information element



 These are the problems I found:
I can not started because I do not know how to distinguish this part of the package:
Thank you for any idea




(Sorry for my english)



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