Wireshark-bugs: [Wireshark-bugs] [Bug 9531] New: IE chosen channel on Lb interface decoded incor
Date: Mon, 09 Dec 2013 15:16:38 +0000
Bug ID 9531
Summary IE chosen channel on Lb interface decoded incorrectly
Classification Unclassified
Product Wireshark
Version 1.10.3
Hardware x86-64
OS Windows Server 2008
Status UNCONFIRMED
Severity Normal
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter utg@op.pl

Created attachment 12275 [details]
"Perform location request" message on Lb interface

Build Information:
Version 1.10.3 (SVN Rev 53022 from /trunk-1.10)

Copyright 1998-2013 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 (64-bit) with GTK+ 2.24.14, with Cairo 1.10.2, with Pango 1.30.1, with
GLib 2.34.1, with WinPcap (4_1_3), with libz 1.2.5, without POSIX capabilities,
without libnl, with SMI 0.4.8, with c-ares 1.9.1, with Lua 5.1, without Python,
with GnuTLS 2.12.18, with Gcrypt 1.4.6, without Kerberos, with GeoIP, with
PortAudio V19-devel (built Nov  1 2013), with AirPcap.

Running on 64-bit Windows Server 2008 R2 Service Pack 1, build 7601, without
WinPcap, GnuTLS 2.12.18, Gcrypt 1.4.6, without AirPcap.
Intel(R) Xeon(R) CPU           X5675  @ 3.07GHz, with 32763MB of physical
memory.


Built using Microsoft Visual C++ 10.0 build 40219

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

Check the man page and http://www.wireshark.org for more information.
--
IE "chosen channel" in message "perform location request" on Lb interface (BSC
<-> SMLC) is decoded incorrectly. IE "chosen channel" on Lb interface is
decoded as 2 octets data.
It should be 3 octet IE on Lb interface (IEI, length and data).
Please see attached file.

3gpp 49.031

"10.6    Chosen Channel
This information element identifiers a type of radio interface channel.
    8    7    6    5    4    3    2    1
Octet 1    IEI
Octet 2    Length indicator 
Octet 3    The rest of the information element is coded as the value part of
the Chosen Channel IE defined in 3GPP TS 48.008."


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