Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 6412] New: [LTE RRC] Enhance dissection of NeighCellConfig IE

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https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6412

           Summary: [LTE RRC] Enhance dissection of NeighCellConfig IE
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: Windows Vista
            Status: NEW
          Severity: Enhancement
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: pascal.quantin@xxxxxxxxx


Created an attachment (id=7120)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7120)
NeighCellConfig IE dissection

Build Information:
Version 1.7.0 (SVN Rev 39196 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 Cairo 1.10.2, with Pango 1.28.3, with
GLib 2.26.1, with WinPcap (version unknown), with libz 1.2.5, without POSIX
capabilities, with threads support, 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, without Kerberos,
with GeoIP, with PortAudio V19-devel (built Sep 26 2011), with AirPcap.

Running on 64-bit Windows Vista Service Pack 2, build 6002, 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 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.
--
The attached patch enhances the dissection of the NeighCellConfig IE by
interpreting the 2 bits field.
Here is an example of the output:
BCCH-DL-SCH-Message
    message: c1 (0)
        c1: systemInformation (0)
            systemInformation
                criticalExtensions: systemInformation-r8 (0)
                    systemInformation-r8
                        sib-TypeAndInfo: 1 item
                            Item 0
                                sib-TypeAndInfo item: sib5 (3)
                                    sib5
                                        interFreqCarrierFreqList: 1 item
                                            Item 0
                                                InterFreqCarrierFreqInfo
                                                    dl-CarrierFreq: 37900
                                                    q-RxLevMin: -64
                                                    t-ReselectionEUTRA: 1
                                                    threshX-High: 0
                                                    threshX-Low: 0
                                                    allowedMeasBandwidth:
mbw100 (5)
                                                    .... ...0
presenceAntennaPort1: False
                                                    neighCellConfig: 40 [bit
length 2, 6 LSB pad bits, 01.. .... decimal value 1]
                                                        No MBSFN subframes are
present in all neighbour cells
                                                    q-OffsetFreq: dB1 (16)

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