Use consistent flow labels when using SYN cookies
ClosedPublic
Actions

Authored by tuexen on Mar 4 2020, 4:17 PM.

Details

Reviewers

bz
rrs
jtl
rscheff

Group Reviewers

transport

Commits

rS360768: MFC r358621:
rS358621: When using automatically generated flow labels and using TCP SYN

Summary

When using SYN cookies and automatically generating flow labels, use the same flow label for the established TCP connection as for the handshake. sc_flowlabel should always be stored in network byte order, but wasn't when only SYN cookies were used.

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

tuexen created this revision.Mar 4 2020, 4:17 PM

Herald added a reviewer: transport. · View Herald TranscriptMar 4 2020, 4:17 PM

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

Harbormaster completed remote builds in B29780: Diff 69160.Mar 4 2020, 4:17 PM

bz accepted this revision.Mar 4 2020, 4:29 PM

This revision is now accepted and ready to land.Mar 4 2020, 4:29 PM

Closed by commit rS358621: When using automatically generated flow labels and using TCP SYN (authored by tuexen). · Explain WhyMar 4 2020, 4:41 PM

This revision was automatically updated to reflect the committed changes.

tuexen added a commit: rS358621: When using automatically generated flow labels and using TCP SYN.

tuexen added a commit: rS360768: MFC r358621:.May 7 2020, 3:29 AM

Revision Contents
Changeset List

Path

Size

head/

sys/

netinet/

tcp_syncache.c

3 lines

Diff 69162

View Options

head/sys/netinet/tcp_syncache.c

Use consistent flow labels when using SYN cookiesClosedPublicActions