Wireshark-bugs: [Wireshark-bugs] [Bug 6146] New: Malformed RANAP packets when HandOver procedure
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6146
Summary: Malformed RANAP packets when HandOver procedure on iuh
Product: Wireshark
Version: 1.6.1
Platform: x86
OS/Version: Windows XP
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
ReportedBy: slawa_m@xxxxxxxxxx
Created an attachment (id=6691)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=6691)
HandOver procedure: iuh - RANAP
Build Information:
Version 1.6.1 (SVN Rev 38096 from /trunk-1.6)
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 (32-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, with
SMI
0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.10.3,
with
Gcrypt 1.4.6, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
Jul
18 2011), 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 2.10.3, 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.
--
Hi, I have some problem with decoding a RANAP packet when I perform a HandOver.
Some RANAP packets are malformed in this case.
I have opened the problem report agains our developers, but they claim that the
message is with accordance with 3GPP TS 25413 and this is a bug of Wireshark.
See below the description of a problem.
=====
When HO procedure is performed (IntraFrequency HO), some RANAP packets are
malformed:
1. id-RelocationPreparation (source HNB --> GW)
Radio Access Network Application Part
ToTargetRNC-Container: interRATHandoverInfo (0)
interRATHandoverInfo: criticalExtensions (1)
[Malformed Packet: RANAP]
[Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
[Message: Malformed Packet (Exception occurred)]
[Severity level: Error]
[Group: Malformed]1.id-RelocationResourceAllocation (target HNB --> GW)
HandoverToUTRANCommand: criticalExtensions RRC packet malformed
2. id-RelocationResourceAllocation (trg HNB --> GW)
Radio Access Network Application Part
HandoverToUTRANCommand: criticalExtensions (1)
criticalExtensions: criticalExtensions (1)
criticalExtensions: r5 (0)
r5
handoverToUTRANCommand-r5
new-U-RNTI
cipheringAlgorithm: uea0 (0)
specificationMode: complete (0)
complete
srb-InformationSetupList: 8 items
Item 0
SRB-InformationSetup-r5
rlc-InfoChoice: same-as-RB (1)
same-as-RB: 6
rb-MappingInfo: 1 item
Item 1
SRB-InformationSetup-r5
rlc-InfoChoice: rlc-Info (0)
rlc-Info
something unknown here [unknown
extension root index in choice]
[Malformed Packet: RRC]
[Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
[Message: Malformed Packet (Exception occurred)]
[Severity level: Error]
[Group: Malformed]
3. id-RelocationPreparation (GW --> source HNB)
Radio Access Network Application Part
[Malformed Packet: RANAP]
[Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
[Message: Malformed Packet (Exception occurred)]
[Severity level: Error]
[Group: Malformed]
--
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