Wireshark-bugs: [Wireshark-bugs] [Bug 7385] New: ATM-OAM cell dissection
Date: Thu, 21 Jun 2012 04:42:29 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7385

           Summary: ATM-OAM cell dissection
           Product: Wireshark
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Dissection engine (libwireshark)
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Created attachment 8633
  --> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=8633
Sample capture showing ATM OAM cells with correct CRC10

Build Information:
Version 1.9.0 (SVN Rev 43424 from /trunk)

Copyright 1998-2012 Gerald Combs <[email protected]> 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+ 2.20.1, with Cairo 1.8.10, with Pango 1.28.0, with
GLib 2.24.1, with libpcap, with libz 1.2.3.3, without POSIX capabilities,
without SMI, without c-ares, without ADNS, without Lua, without Python, without
GnuTLS, without Gcrypt, without Kerberos, without GeoIP, without PortAudio,
with
AirPcap.

Running on Linux 2.6.32-41-generic, with locale en_US.UTF-8, with libpcap
version 1.0.0, with libz 1.2.3.3, without AirPcap.

Built using gcc 4.4.3.

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.
--
Two small problems in the ATM dissector:
1. OAM cells are not automatically detected if the AAL type passed is
AAL_UNKNOWN.
2. CRC10 calculation does not take into account the "crc_stripped" option, and
uses a hardcoded offset of 5 bytes into the cell.

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