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tcp: fix local blackholing
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Authored by tuexen on Jun 13 2025, 6:56 AM.

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	F131892430: D50828.id157007.diff
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	F131892426: D50828.id156958.diff
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Subscribers

imp

melifaro

Details

Reviewers

glebius
cc
rscheff
peter.lei_ieee.org
lstewart

Group Reviewers

transport

Commits

rGc53a68283300: tcp: fix local blackholing
rGde8fb1b38357: tcp: fix local blackholing

Summary

The sysctl-variable net.inet.tcp.blackhole_local should affect TCP segments from an IPv6 address of the local host, not of a host on the local area network.
Thanks to cc@ for pointing me to the issue.

Diff Detail

Repository

rG FreeBSD src repository

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Unit

Tests Not Applicable

Event Timeline

tuexen created this revision.Jun 13 2025, 6:56 AM

Herald added a reviewer: transport. · View Herald TranscriptJun 13 2025, 6:56 AM

Herald added subscribers: melifaro, imp. · View Herald Transcript

tuexen requested review of this revision.Jun 13 2025, 6:56 AM

cc accepted this revision.Jun 13 2025, 12:57 PM

This revision is now accepted and ready to land.Jun 13 2025, 12:57 PM

Closed by commit rGde8fb1b38357: tcp: fix local blackholing (authored by tuexen). · Explain WhyJun 13 2025, 8:56 PM

This revision was automatically updated to reflect the committed changes.

tuexen added a commit: rGde8fb1b38357: tcp: fix local blackholing.

tuexen added a commit: rGc53a68283300: tcp: fix local blackholing.Sep 4 2025, 8:03 PM

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Path

Size

sys/

netinet/

tcp_input.c

2 lines

Diff 157007

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tcp: fix local blackholingClosedPublicActions