CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2026/11/08 05:14:17
Modified files:
sys/netinet : tcp_output.c
Log message:
Do not advance snd_nxt and snd_max for TCP SACK retransmits.
In the SACK case, the calculation that decided whether we should
adjust snd_nxt and snd_max was wrong. Use the same logic as FreeBSD
and NetBSD, and never advance them when retransmitting a SACK hole.
This may delay a FIN packet in a corner case, but the logic gets
much simpler. Also simplify the SACK checks, sack_rxmit is only
set if tp->sack_enable is true.
reported by OpenAI; OK sashan@
