Liz Rice on Programming the Linux Kernel with eBPF, Cilium and Service Meshes
The InfoQ Podcast
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The Evolution of the Berkeley Packet Filter
The original Berkeley packet filter itself is quite old in tech terms. The first release was 1992. It's the original packet filter from BSD. And then in order to do the actual packet filtering, what is it that we have? We have a little bit of code that says, does this packet match my filter? Right. What if we could run them in other contexts, not just looking at a network packet, but maybe some other operations that the kernel's doing? That's how you get to the sort of extended bit.
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