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Differential D48664

udp: Add a sysctl to control binding
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Authored by markj on Jan 24 2025, 5:04 PM.
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imp
melifaro
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Details

Reviewers
glebius
Group Reviewers
network
transport
Commits
rGe83d93bb28ac: udp: Add a sysctl to modify listening socket FIB inheritance
rG08e638c089ab: udp: Add a sysctl to modify listening socket FIB inheritance
Summary

Introduce the net.inet.udp.bind_all_fibs tunable, set to 1 by default
for compatibility with current behaviour. When set to 0, all received
datagrams will be dropped unless an inpcb bound to the same FIB exists.

No functional change intended, as the new behaviour is not enabled by
default.

Sponsored by: Klara, Inc.
Sponsored by: Stormshield

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Repository
rG FreeBSD src repository
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Event Timeline

markj created this revision.Jan 24 2025, 5:04 PM
Herald added a reviewer: transport. · View Herald TranscriptJan 24 2025, 5:04 PM
Herald added subscribers: melifaro, ae, imp. · View Herald Transcript
markj requested review of this revision.Jan 24 2025, 5:04 PM
Harbormaster completed remote builds in B62006: Diff 149926.Jan 24 2025, 5:04 PM
markj added a parent revision: D48663: tcp: Add a sysctl to affect listening socket behaviour.Jan 24 2025, 5:04 PM
markj added a child revision: D48665: tests: Add some FIB multibind test cases.
glebius accepted this revision as: glebius.Jan 24 2025, 5:38 PM
markj updated this revision to Diff 150077.Jan 28 2025, 6:08 PM

Handle multicast sockets as well.

Harbormaster completed remote builds in B62079: Diff 150077.Jan 28 2025, 6:08 PM
markj added a parent revision: D48707: rawip: Add a bind_all_fibs mode.Jan 28 2025, 6:10 PM
markj removed a parent revision: D48707: rawip: Add a bind_all_fibs mode.
markj added a child revision: D48707: rawip: Add a bind_all_fibs mode.
This revision was not accepted when it landed; it landed in state Needs Review.Feb 6 2025, 4:28 PM
Closed by commit rG08e638c089ab: udp: Add a sysctl to modify listening socket FIB inheritance (authored by markj). · Explain Why
This revision was automatically updated to reflect the committed changes.
markj added a commit: rG08e638c089ab: udp: Add a sysctl to modify listening socket FIB inheritance.
markj added a commit: rGe83d93bb28ac: udp: Add a sysctl to modify listening socket FIB inheritance.Feb 21 2025, 1:57 AM
Herald added a subscriber: ziaee. · View Herald TranscriptFeb 21 2025, 1:57 AM

Revision Contents
Changeset List

PathSize
share/
man/
man4/
15 lines
sys/
netinet/
40 lines
6 lines
netinet6/
18 lines

Diff 150631

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share/man/man4/udp.4

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sys/netinet/udp_usrreq.c

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sys/netinet/udp_var.h

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sys/netinet6/udp6_usrreq.c

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