Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 3983] New: The GSM L3 part of the BSSMAP CipherModeComplete message is not bei

[bugzilla-daemon@xxxxxxxxxxxxx]

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3983

           Summary: The GSM L3 part of the BSSMAP CipherModeComplete message
                    is not being decoded.
           Product: Wireshark
           Version: 1.2.1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: wireshark@xxxxxxxxxxxxxxx


Build Information:
Version 1.2.1ipa30-mm3-3

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 Aug 10 2009), with
AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1
beta5
(packet.dll version 4.1.0.1452), based on libpcap version 1.0.0, GnuTLS 2.8.1,
Gcrypt 1.4.4, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729
--
The dissector be_l3_msg() was wrongly expecting to decode a complete GSM L3
message, but the BSSMAP CIPER MODE COMPLETE PDU only contains the IEs of the
44.018 PDU (not the header).

This is easily fixed by directly calling dtap_rr_cip_mode_cpte().

dtap_rr_cip_mode_cpte() is moved into packet-gsm_a_common.c, as it is now
called from 2 files.

A test PDU and patch files are attached.


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