A comprehensive deep dive into eBPF architecture, execution pipeline, map types, hook points, verifier mechanics, CO-RE portability, and production deployment patterns with practical examples including XDP firewall and syscall latency tracer.
A deep dive into Linux eBPF XDP technology, covering XDP architecture, program lifecycle, Maps mechanism, packet modification, redirection, XDP_DROP/XDP_PASS/XDP_TX/XDP_REDIRECT actions, and production use cases including DDoS protection, Layer-4 load balancing, and AF_XDP.