Reimplementing pf as an eBPF/XDP dataplane on Linux

882542F3884314B 15 points 3 comments July 11, 2026
blog.nfsensei.org · View on Hacker News

Discussion Highlights (2 comments)

asmnzxklopqw

PF configuration language that author considers to be “the clearest expression of firewall intent anyone has shipped” is 95% the configuration language of ipfilter, the initial solaris and bsd firewall software. Quite suspicious that the author doesn’t mention it, especially when pf started merely as a clone of the latter.

throawayonthe

this seems very interesting, but the prose is extremely hard to read

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