Re: Unable to detect custom protocol dissector

[Graham Bloice <graham.bloice () trihedral com>]

Does your custom build of Wireshark include Lua?  What does the Help |
About Wireshark | Wireshark info show?

On Wed, 12 Feb 2020 at 21:46, sandip gangakhedkar <sandipfloyd () gmail com>
wrote:

> Hi,
>
> I am using a Custom protocol dissector (Lua script) for the GeoNetworking
> header. I have build wireshark 3.2.1 from source on Ubuntu 18.04 and placed
> the Lua script in the Global plugins directory. However, the script fails
> when to find the Geonetworking protocol when I invoke it in the script:
>
>   Dissector.get("gnw"):call(newTvb, pkt, root)
>
> So I tried another approach:
>
>   gnw_dissector = DissectorTable.get("ethertype"):get_dissector(35143)
>
> The protocol gnw (GeoNetworking) corresponds to an EtherType of 35143 in
> my Wireshark protocols configuration. However, this also fails to find the
> "gnw" protocol.
>
> How can I get wireshark to detect the GeoNetworking protocol from my
> custom Lua script?
>
> Thanks in advance.

-- 
Graham Bloice

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