Wireshark-bugs: [Wireshark-bugs] [Bug 1615] New: Large PDU decode line expand/collapse problems
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1615
Summary: Large PDU decode line expand/collapse problems
Product: Wireshark
Version: 0.99.5
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: Minor
Priority: Medium
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: jhg@xxxxxxxxxxxxxxx
Build Information:
Version 0.99.5 (SVN Rev 20677)
Copyright 1998-2007 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+ 2.10.7, with GLib 2.12.7, with WinPcap (version unknown),
with libz 1.2.3, with libpcre 6.4, with Net-SNMP 5.4, with ADNS, with Lua 5.1,
with GnuTLS 1.6.1, with Gcrypt 1.2.3, with MIT Kerberos, with PortAudio
PortAudio V19-devel, with AirPcap.
Running on Windows XP Service Pack 2, build 2600, with WinPcap version 4.0
(packet.dll version 4.0.0.755), based on libpcap version 0.9.5, without
AirPcap.
Built using Microsoft Visual C++ 6.0 build 8804
Wireshark is Open Source Software released under the GNU General Public
License.
Check the man page and http://www.wireshark.org for more information.
--
In the middle pane of the Wireshark window (protocol decode), various
subsections of the protocols are shown with "+" (expand buttons). If the
PDU is large such that the progress dialog is shown during decode, then
there are several problems, all of which look related.
1) Wireshark SOMETIMES appears to parse the PDU twice; the progress dialog
displays, takes 3-4 seconds to complete, then vanishes and reappears
for another 3-4 seconds. I can't reproduce this reliably, but it seems
to happen the first time you do this after opening Wireshark.
2) upon completion of the progress dialog the clicked line is not expanded.
You have to click the "+" a second time to actually expand the line; this
time the PDU is not reparsed (i.e. the line expands immediately).
This is 100% repeatable.
3) In the expanded view, if there are nested collapsed lines, when you
click on the "+" Wireshark appears to reparse the entire PDU (this may
be working as designed -- I don't know). You still have to click twice
to actually expand the line.
4) SOMETIMES, when trying to collapse an expanded line (click on the '-'),
the PDU is reparsed: the progress dialog comes up and goes through its
usual 3-4 seconds of work. If this happens, the line does not collapse
until you click on the '-' a second time.
To reproduce:
1 Start with the packet capture file from Bug 1329.
2 Select packet #336 (a 245k PDU)
3 In the decode pane click on the JPEG line's "+"
The progress dialog will come up for a few seconds then disappear.
To actually get the line to expand you have to click the "+" again.
4 After the line is expanded, click on the '-' to collapse
The progress dialog is displayed. When it completes, the line is not collapsed.
Clicking on the '-' again collapses it.
--
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