Wireshark mailing list archives

Re: Question / nit / ocd trigger


From: Graham Bloice <graham.bloice () trihedral com>
Date: Mon, 24 May 2021 17:17:19 +0100

On Mon, 24 May 2021 at 16:22, Jason Cohen <kryojenik2 () gmail com> wrote:

One thing that has bothered me for years has been the TCP flags filters.

The 6 primary TCP flags are:
SYN
ACK
PSH
RST
URG
FIN

Then you get into the CWR, NS, ECE (ECN), etc...

The filters in Wireshark all use the accepted, known abbreviations save
for RST and PSH.  Those are spelled out as tcp.flags.reset and
tcp.flags.push.

Is there history, reasoning for this?  Should there be some level of
consistency?  I certainly do not advocate for tcp.flags.acknowledgement or
tcp.flags.syncronize.  However, I think it would be reasonable for reset
and push to be replaced with "rst" and "psh" respectively.  Perhaps an
alias to allow the spelled out filters to continue to work.


While consistency is good and the change seems simple, it will break many
existing workflows and "muscle memory" and all the many guides\manuals etc.
out there.  An alias would help going forwards but I think users may still
become confused.

I class this as the type of change that really needs a time machine to
allow the correct implementation at the start or maybe a Neuralyzer (
https://meninblack.fandom.com/wiki/Neuralyzer)

-- 
Graham Bloice
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