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Switch gif(4) path verification to use fib[46]_check_urfp()
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Authored by melifaro on May 23 2020, 5:36 PM.

Details

Summary

fibX_lookup_nh_ represents pre-epoch generation of fib api,
providing less guarantees over pointer validness and requiring
on-stack data copying.
Use specialized fib[46]_check_urpf() from newer KPI instead,
to allow removal of older KPI.

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rS FreeBSD src repository
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