https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16318
Bug ID: 16318
Summary: Avoid moving the selected packet when
applying/removing display filters.
Product: Wireshark
Version: 3.0.7
Hardware: x86-64
OS: Windows 10
Status: UNCONFIRMED
Severity: Enhancement
Priority: Low
Component: Qt UI
Assignee: bugzilla-ad...@wireshark.org
Reporter: j...@mccabe.org.uk
Target Milestone: ---
Build Information:
Version 3.0.7 (v3.0.7-0-g9435717b91f5)
Copyright 1998-2019 Gerald Combs <ger...@wireshark.org> and contributors.
License GPLv2+: GNU GPL version 2 or later
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html> 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 (64-bit) with Qt 5.12.6, with WinPcap SDK (WpdPack) 4.1.2, with GLib
2.52.2, with zlib 1.2.11, with SMI 0.4.8, with c-ares 1.14.0, with Lua 5.2.4,
with GnuTLS 3.6.3 and PKCS #11 support, with Gcrypt 1.8.3, with MIT Kerberos,
with MaxMind DB resolver, with nghttp2 1.39.2, with LZ4, with Snappy, with
libxml2 2.9.9, with QtMultimedia, with AirPcap, with SBC, with SpanDSP, with
bcg729.
Running on 64-bit Windows 10 (1909), build 18363, with Intel(R) Core(TM)
i5-4590S CPU @ 3.00GHz (with SSE4.2), with 16306 MB of physical memory, with
locale English_United Kingdom.1252, with Npcap version 0.9983, based on libpcap
version 1.9.1-PRE-GIT, with GnuTLS 3.6.3, with Gcrypt 1.8.3, without AirPcap,
binary plugins supported (14 loaded). Built using Microsoft Visual Studio 2017
(VC++ 14.16, build 27034).
Wireshark is Open Source Software released under the GNU General Public
License.
Check the man page and https://www.wireshark.org for more information.
--
If a packet is selected in the capture view, and a display filter is applied or
removed, the selected packet moves to the bottom of the capture view (assuming
there are enough packets to fill the view above that point - but that's a
special case!). It would be nice to be able to keep the selected packet at the
same position rather than have it move.
Here's an example to illustrate what happens now, with 3.0.7. Say I have the
following (summary) displayed:
----
58 DNS
59 IGMPv2
60 UDP
61 IGMPv2
62 IGMPv2
63 IGMPv2
64 IGMPv2
65 ARP
66 WireGuard
67 WireGuard
68 TCP
----
I select packet 60 then apply UDP as a filter. The capture window changes to:
----
49 DNS
50 DNS
51 DNS
52 DNS
53 DNS
54 DNS
55 DNS
56 DNS
57 DNS
58 DNS
60 UDP <- selected packet moves to the bottom
----
Now, if I scroll so that packet 60 is in the middle of the capture list I get:
----
54 DNS
55 DNS
56 DNS
57 DNS
58 DNS
60 UDP
66 WireGuard
67 WireGuard
91 WireGuard
92 DNS
93 DNS
----
Then finally, with packet 60 still selected, I delete the capture expression
and get:
----
50 DNS
51 DNS
52 DNS
53 DNS
54 DNS
55 DNS
56 DNS
57 DNS
58 DNS
59 IGMPv2
60 UDP <- selected packet moves to the bottom again
----
This enhancement request suggests a change such that the behaviour is more like
as follows. Start with the same as before:
----
58 DNS
59 IGMPv2
60 UDP
61 IGMPv2
62 IGMPv2
63 IGMPv2
64 IGMPv2
65 ARP
66 WireGuard
67 WireGuard
68 TCP
----
I select packet 60 then apply UDP as a filter. The capture window changes to:
----
57 DNS
58 DNS
60 UDP <- selected packet remains where it was
66 WireGuard
67 WireGuard
91 WireGuard
92 DNS
93 DNS
96 DNS
97 DNS
99 DNS
----
Now, if I scroll so that packet 60 is in the middle of the capture list I get:
----
54 DNS
55 DNS
56 DNS
57 DNS
58 DNS
60 UDP
66 WireGuard
67 WireGuard
91 WireGuard
92 DNS
93 DNS
----
Then finally, with packet 60 still selected, I delete the capture expression
and get:
----
55 DNS
56 DNS
57 DNS
58 DNS
59 IGMPv2
60 UDP <- selected packet remains where it was
61 IGMPv2
62 IGMPv2
63 IGMPv2
64 IGMPv2
65 IGMPv2
----
--
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