Wireshark-bugs: [Wireshark-bugs] [Bug 5922] New: Update AT commands dissector heuristics to deal
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Sat, 14 May 2011 06:24:47 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5922

           Summary: Update AT commands dissector heuristics to deal with
                    packets from the Motorola L6 mobile phone
           Product: Wireshark
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: tyson.key@xxxxxxxxx


Created an attachment (id=6340)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=6340)
A trace file containing 5 AT commands packets with the aforementioned quirk

Build Information:
Version 1.5.2-SVN-37053 (SVN Rev 37053 from /trunk)

Copyright 1998-2011 Gerald Combs <gerald@xxxxxxxxxxxxx> 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 (64-bit) with GTK+ 2.22.1, with GLib 2.26.1, with WinPcap (version
unknown), with libz 1.2.5, without POSIX capabilities, without libpcre, without
SMI, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.10.3, with
Gcrypt 1.4.6, without Kerberos, with GeoIP, with PortAudio V19-devel (built May
10 2011), with AirPcap.

Running on 64-bit Windows 7, build 7600, 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 2.10.3, Gcrypt 1.4.6, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 21022

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.
--
I've noticed that certain AT commands packets generated by the Motorola L6 have
a "magic number" of 0x0D0D0A, instead of 0x0D0A or "AT".

I'm attaching a trace file containing a few of these, and I'll provide a patch
shortly.

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