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sctp: improve path verification

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When sending path confirmation heartbeats, do not take HB.interval
into account when the path is still reachable.

Thanks to Alexander Funke for finding the issue and suggesting a fix.

MFC after:	3 days
This commit is contained in:
Michael Tuexen 2022-05-14 08:05:03 +02:00
parent 9b2a35b3a9
commit 9312ba239e
1 changed files with 2 additions and 1 deletions
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3
sys/netinet/sctputil.c
View file

@ -2300,7 +2300,8 @@ sctp_timer_start(int t_type, struct sctp_inpcb *inp, struct sctp_tcb *stcb,
} else {
to_ticks = UINT32_MAX;
}
if (((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) &&
if (!((net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
(net->dest_state & SCTP_ADDR_REACHABLE)) &&
((net->dest_state & SCTP_ADDR_PF) == 0)) {
if (net->heart_beat_delay < (UINT32_MAX - to_ticks)) {
to_ticks += net->heart_beat_delay;