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Wireshark-bugs: [Wireshark-bugs] [Bug 4888] New: Created column with field type IP DSCP Value ch

Date: Thu, 17 Jun 2010 20:30:01 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4888

           Summary: Created column with field type IP DSCP Value changes
                    to ip.dsfield
           Product: Wireshark
           Version: 1.4.0
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: jwschmidt31@xxxxxxxxx


Created an attachment (id=4802)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4802)
Screen cap of the changed column definition.  

Build Information:
Also replicated on Windows 2003 Server SP2 (32-bit).

Version 1.4.0rc1 (SVN Rev 33190 from /trunk-1.4)

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
Jun
 9 2010), with AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version 4.1.0.1753), 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.
--
Defining a new column with field type of "IP DSCP Value" results in the
following:

1.  After configuring the new column and applying the change, the main display
does not show any values in the column.  The values are blank for all packets
(despite some packets having a DSCP value).

2.  After closing and re-opening Wireshark, the column is now defined as
"Custom" with a custom field of "ip.dsfield".  Packets marked with DSCP values
will show a decimal value based on the whole IP TOS byte vs. the DSCP field.  I
assume this is expected given the custom field type.

3.  Attempting to change the field type back to "IP DSCP Values" does not work.
 We end up back at #1 above.

This behavior is not seen in any 1.2.x build I have used.

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