Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 3007] New: Buggy 3GPP 44.018 Cell Channel Description / Frequency List IEs dec

[bugzilla-daemon@xxxxxxxxxxxxx]

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3007

           Summary: Buggy 3GPP 44.018 Cell Channel Description / Frequency
                    List IEs decoding
           Product: Wireshark
           Version: SVN
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: pascal.quantin@xxxxxxxxx



Pascal Quantin <pascal.quantin@xxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #2421|                            |review_for_checkin?
               Flag|                            |


Created an attachment (id=2421)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=2421)
New f_k() function as specified in 3GPP 44.018 annex J.5

Build Information:
Version 1.1.2

Copyright 1998-2008 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+ 2.14.3, with GLib 2.18.1, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, with libpcre 7.0, with SMI 0.4.8,
with c-ares 1.5.3, with Lua 5.1, with GnuTLS 2.3.8, with Gcrypt 1.4.1, with MIT
Kerberos, without GeoIP, with PortAudio V19-devel (built Oct 27 2008), with
AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.0.2
(packet.dll version 4.0.0.1040), based on libpcap version 0.9.5, 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
--
Currently, the decoding of RR frequency list information elements can give
wrong results when the list was encoded using 1024, 512, 256 or 128 ranges.
In fact function f_k() used in the decoding is buggy and gives incorrect
results.
The attached patch replace the function with a valid one as specified in 3GPP
44.018 annex J.5.


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