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seems like i am missing cjson files for suriwire

asked 2022-03-31 18:43:14 +0000

iqworks gravatar image

HI, i get these messages when i start up wireshark. it says i am missing some files. where is the right place to download them from? the error says: lua error during loading. no filed package preload [cjson] no file cjson.lua no file init.lua no file cjson.dll no file loadall.dll

the suriwire.lua has this "local json = require("cjson") " thanks for any help or suggestions.

thanks for your help and suggestions.

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answered 2022-04-04 20:01:25 +0000

Chuckc gravatar image

updated 2022-04-04 20:03:43 +0000

Looks like suriwire.lua could use dkjson:

local ok, json = pcall(require, "cjson")
if not ok then
    json = require("dkjson")

This project (ntop/nDPI/wireshark/tshark/lib/) includes dkjson.lua and has an example using it with a tshark Lua plugin.


local json = require "dkjson"
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answered 2022-04-01 08:46:32 +0000

grahamb gravatar image

You would seem to be using a Lua plugin that isn't part of the standard Wireshark distribution so you'll have to seek support from the plugin creator, possibly here.

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thanks, i will check out lua

iqworks gravatar imageiqworks ( 2022-04-01 15:50:04 +0000 )edit

You should, instead, check for Lua CJSON; the require() function in Lua loads add-on "modules", both built-in modules and third-party modules. CJSON is a third-party module; see the "Installation" section of the Lua CJSON manual for instructions on how to install it.

The Web page for Suriwire does not appear to mention Lua CJSON anywhere. Lua CJSON is, however, mentioned in Suriwire's README.rst file; however, the home page just has a download link for Suriwire, and doesn't point you to the README.rst file for instructions on how to install it, and that README.rst file doesn't point to the Lua CJSON site.

Guy Harris gravatar imageGuy Harris ( 2022-04-04 07:35:31 +0000 )edit

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Asked: 2022-03-31 18:43:14 +0000

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Last updated: Apr 04 '22