Accelerating TURN with eBPF: A Non-Invasive...

There is much to be said for the merits of eBPF when it comes to the common problems of network filtering, and one cannot help but observe the swift evolution of this splendid technology. However, one must admit that certain undertakings remain decidedly more tiresome than others. While dropping packets comes across as a rather straightforward affair, the pursuit of accelerating a stateful, high-performance userspace relay server presents a most formidable set of challenges. Notably, TURN (RFC 8