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List:       wireshark-bugs
Subject:    [Wireshark-bugs] [Bug 5166] New: support multiple versions of NWG
From:       bugzilla-daemon () wireshark ! org
Date:       2010-08-31 21:50:19
Message-ID: bug-5166-15 () https ! bugs ! wireshark ! org/bugzilla/
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https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5166

           Summary: support multiple versions of NWG for WiMAX ASN CP
                    dissector
           Product: Wireshark
           Version: SVN
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@wireshark.org
        ReportedBy: dkatz@airspan.com


Build Information:
wireshark 1.5.0-Airspan-v1.2.1

Copyright 1998-2010 Gerald Combs <gerald@wireshark.org> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.16.6, (32-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, with
SMI

0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
Aug

31 2010), with AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.2
(packet.dll version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.

Built using Microsoft Visual C++ 10.0 build 30319

--
Add a configuration parameter of the NWG version for WiMAX ASN CP dissector.
The format and meaning of TLVs, as well as function types  and messages changed
between the different NWG versions.
Added support for the version number of TLVs in the dictionary xml, its parser,
and of course in the packet itself.
Added support for the version number of function-types and message-types by
extending the value_string structure to contain also a "since" version number.

Successfully tested with a live capture and capture file, containing WiMAX ASN
packets (full Network entry).
Also fuzzed 500 passes successfully.

The XML doesn't contain all existing NWG versions, only selected ones. This is
a little tedious work to go over all TLVs of each version, so I'll add some
newer versions later on. can add a short how-to of adding a new version, for
others to use, if needed.

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