Is eBPF driving you crazy? Let it run Lunatik instead(medium.com)
medium.com
Is eBPF driving you crazy? Let it run Lunatik instead
https://medium.com/@lourival.neto/is-ebpf-driving-you-crazy-let-it-run-lunatik-instead-4aca7d63e6fd
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It has been a while since we have introduced XDPLua, a Lua binding for running scripts inside the XDP (eXpress Data Path) environment using the Lunatik framework. Since then both XDP and Lunatik have evolved quite a bit. Especially, now it is possible to expose kernel functions (kfuncs) to eBPF programs, instead of relying only on eBPF Helpers. This feature finally allowed us to get rid of the hard requirement of running our Lua binding as built-in in the kernel and enabled us to run it as a kernel module. Moreover, Lunatik has also evolved towards a modular framework. Now we can develop new bindings for kernel subsystems as Lua libraries and link them as loadable kernel modules. Thus, leveraging these two features, we have created a new Lua binding for the XDP subsystem. We are glad to introduce in this article the new LuaXDP library!