Wireshark-bugs: [Wireshark-bugs] [Bug 4232] New: GSM SMS - Short message fragments - TP User Dat
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 10 Nov 2009 07:03:03 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4232

           Summary: GSM SMS - Short message fragments - TP User Data
           Product: Wireshark
           Version: 1.2.3
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: High
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: vipul.veera@xxxxxxxxxxxx


Created an attachment (id=3948)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=3948)
Wireshark image for SMS fragment

Build Information:
Version 1.2.3 (SVN Rev 30730)

Copyright 1998-2009 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 with GTK+ 2.16.2, with GLib 2.20.3, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, with libpcre 7.0, with SMI 0.4.8,
with c-ares 1.6.0, with Lua 5.1, with GnuTLS 2.8.1, with Gcrypt 1.4.4, with MIT

Kerberos, with GeoIP, with PortAudio V19-devel (built Oct 27 2009), with
AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version 4.1.0.1753), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.8.1, Gcrypt 1.4.4, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

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

Check the man page and http://www.wireshark.org for more information.
--
Wireshark 1.2.3 decodes the message content in the TP User Data field correctly
as long as the SMS is not a fragmented short message.

When the SMS is a fragmented short message, then Wireshark 1.2.3 just decodes
the IE data in the User-Data-Header fields of the TP-User-Data but does not
decode the message content in the TP-User-Data. 

Wireshark 1.0.0 used to decode the message content in the TP-User-Data even for
fragmented messages, though it did not use to decode the IE data in the
User-Data-Header field.

Both the IE data and the message content fields should be decoded for
fragmented short messages.


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