Wireshark-bugs: [Wireshark-bugs] [Bug 5065] New: [NAS EPS] PDN Disconnect Request dissection
Date Index · Thread Index · Other Months · All Mailing Lists
Date Prev · Date Next · Thread Prev · Thread Next
From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Wed, 28 Jul 2010 13:26:32 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5065

           Summary: [NAS EPS] PDN Disconnect Request dissection
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: All
            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 #4980|                            |review_for_checkin?
               Flag|                            |

Created an attachment (id=4980)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4980)
Fix for PDN Disconnect Request dissection

Build Information:
Version 1.5.0 (SVN Rev 33649 from /trunk)

Copyright 1998-2010 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+ 2.16.6, (32-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, with
SMI
0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
Jul
28 2010), 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 2.8.5, Gcrypt 1.4.5, 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.
--
The attached patch fixes the dissection of the PDN Disconnect Request message
in case the optional Protocol Configuration Options IE is not present.

Without it you get:
Non-Access-Stratum (NAS)PDU
    0010 .... = Security header type: Integrity protected and ciphered (2)
    .... 0010 = Protocol discriminator: EPS session management messages (2)
    Message authentication code: 0x00000000
    Sequence number: 5
    0000 .... = EPS bearer identity: 0x00
    .... 0010 = Protocol discriminator: EPS session management messages (2)
    Procedure transaction identity: 2
    NAS EPS session management messages: PDN disconnect request (0xd2)
    0000 .... = Spare half octet: 0
    .... 0101 = Linked EPS bearer identity: EPS bearer identity value 5 (5)
[Malformed Packet: NAS-EPS]
    [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]

Once applied, you get:
Non-Access-Stratum (NAS)PDU
    0010 .... = Security header type: Integrity protected and ciphered (2)
    .... 0010 = Protocol discriminator: EPS session management messages (2)
    Message authentication code: 0x00000000
    Sequence number: 5
    0000 .... = EPS bearer identity: 0x00
    .... 0010 = Protocol discriminator: EPS session management messages (2)
    Procedure transaction identity: 2
    NAS EPS session management messages: PDN disconnect request (0xd2)
    0000 .... = Spare half octet: 0
    .... 0101 = Linked EPS bearer identity: EPS bearer identity value 5 (5)

-- 
Configure bugmail: https://bugs.wireshark.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.