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by infofarmer 1006 days ago
Without looking, chances are Apple is using the FreeBSD fork of pf, that diverged long ago (mostly to implement SMP to handle much more traffic).
1 comments
gonzo 1006 days ago
Looking reveals that Apple started with the pf from openbsd

https://opensource.apple.com/source/xnu/xnu-1699.22.73/bsd/n...

Note: no FreeBSD copyright.

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