From: Wireshark-dev <wireshark-dev-boun...@wireshark.org> On Behalf Of Graham Bloice Sent: den 13 februari 2020 11:09 To: Developer support list for Wireshark <wireshark-dev@wireshark.org> Subject: Re: [Wireshark-dev] Unable to detect custom protocol dissector 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 <sandipfl...@gmail.com <mailto:sandipfl...@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. The function DissectorTable.get("ethertype"):get_dissector(35143) <https://wiki.wireshark.org/LuaAPI/Dissector#dissectortable:get_dissector.28pattern.29> https://wiki.wireshark.org/LuaAPI/Dissector#dissectortable:get_dissector.28pattern.29 gets the handle of the built in GNW dissector as far as I can tell. Is that what you want? Why do you want to replace the existing dissector? (If that’s what you are trying to do). Regards Anders
smime.p7s
Description: S/MIME cryptographic signature
___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev@wireshark.org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-requ...@wireshark.org?subject=unsubscribe
