mdavidsaver / cashark Goto Github PK

In ca.lua:590 st is nil. I believe it's due to the previous line t:add():set_text. I don't think the set_text call returns the tree item to st. I tested with the set_text in a separate line and all looks good.

Tested with
CentOS 7
Wireshark 1.10.14
Lua 5.1

RHEL 8 comes with Lua 5.3, which is not supported by Wireshark yet.

That's why the RHEL 8 packaged Wireshark is compiled "without Lua".

cf. https://epics.anl.gov/tech-talk/2021/msg02039.php

On 11/24/21 6:07 PM, Shankar, Murali via Tech-talk wrote:

Hello,

I am trying to track down some connectivity issues. I am using the wireshark LUA plugin to process a packet dump from production. Being a wireshark newbie, I was wondering if anyone know how to print the timestamp_sec and timestamp_nsec as part of rendering the ca_monitor event here - https://github.com/mdavidsaver/cashark/blob/master/ca.lua#L694 https://github.com/mdavidsaver/cashark/blob/master/ca.lua#L694. I am using wireshark-1.10.14 that ships as part of RHEL7...

Hello, I am using cashark to analyze the EPICS network, and I encountered a problem.I use ca.lua and pva.lua in the same way. Wireshark has no problem when using the ca plug-in, but it will report an error when using the pva plug-in. According to the error message, how can I specify the TCP and UDP ports when I start wireshark with pva.lua?

Thanks for your help!

Apparently some versions/builds for Lua have a limited stack size which is exceeded by the many local variables in ca.lua. This manifests with a ... function or expression too complex ... error. This is now my personal favorite "error" message!

Lua: Error during loading:
[string "/usr/lib64/wireshark/plugins/1.10.14/pva.lua"]:316: A protocol doesn't have a `register_heuristic' attribute