I am using suricata with community id to correlate zeek and suricata logs. I need to get the value of community id for each tuple in lua script.
Is there any method to get community id for suricata using lua?
How to get community id from lua script in suricata
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There is a limited set of Lua functions available in Suricata (cf https://suricata.readthedocs.io/en/latest/lua/lua-functions.html#lua-functions).
If you really have to use a Lua script for this, I suppose you could add something locally to your Suri, although that can be a bit convoluted to do, as the community id is only calculated during EVE logs generation.
Extra: if Lua isn't mandatory,
jqcould be of great help for extracting the info you need from the EVE logs, and then you'd have easy access to thecommunity_idand much more.