This repo contains my presented solution to the task "write a C program which constructs a raw Ethernet frame, fill it with a custom protocol and its header and send it over the socket".
Compile it with make. Run it with sudo ./eth-frame <target MAC> <interface> "<message>" (the " are important, your shell should translate it into one argument, if you put in multiple words).
To debug your frame builder, you can use the provided spark_dissector.lua. Run your Wireshark with wireshark -X lua_script:spark_dissector.lua and it will automatically load the script.
Licensed under GPLv3. You are free to use, modify and distribute the code in this repository.