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mbuf: PACKET_TAG_PF should not be persistent
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Authored by kp on Oct 26 2021, 9:53 AM.
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Details

Summary

We should clear firewall tags on loopback, icmp reflection, or if_epair
transmission. Left over tags can produce unexpected behaviour,
especially on if_epair where a and b interfaces can be in different
vnets, and have different firewall policies set.

MFC after: 3 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")

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rG FreeBSD src repository
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