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authorMichael Tuexen <tuexen@FreeBSD.org>2024-05-10 18:58:01 +0000
committerMichael Tuexen <tuexen@FreeBSD.org>2024-05-10 19:02:56 +0000
commit5120ea0d8871fd5d56a8fb70117b727b9d8a4e62 (patch)
tree458427b63633d2c46d1168f1b26dc91a59301701 /sys
parent88cbbbb6070ce3c5aea7b8d511039d44fc1f1c47 (diff)
downloadsrc-5120ea0d8871fd5d56a8fb70117b727b9d8a4e62.tar.gz
src-5120ea0d8871fd5d56a8fb70117b727b9d8a4e62.zip
sctp: improve heartbeat timer computation
PR: 278666 Reviewed by: Albin Hellqvist MFC after: 3 days Pull Request: https://reviews.freebsd.org/D45107
Diffstat (limited to 'sys')
-rw-r--r--sys/netinet/sctputil.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c
index 22d45d150544..17e49b413464 100644
--- a/sys/netinet/sctputil.c
+++ b/sys/netinet/sctputil.c
@@ -2289,19 +2289,19 @@ sctp_timer_start(int t_type, struct sctp_inpcb *inp, struct sctp_tcb *stcb,
} else {
to_ticks = net->RTO;
}
- rndval = sctp_select_initial_TSN(&inp->sctp_ep);
- jitter = rndval % to_ticks;
- if (to_ticks > 1) {
- to_ticks >>= 1;
- }
- if (jitter < (UINT32_MAX - to_ticks)) {
- to_ticks += jitter;
- } else {
- to_ticks = UINT32_MAX;
- }
if (!((net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
(net->dest_state & SCTP_ADDR_REACHABLE)) &&
((net->dest_state & SCTP_ADDR_PF) == 0)) {
+ if (to_ticks > 1) {
+ rndval = sctp_select_initial_TSN(&inp->sctp_ep);
+ jitter = rndval % to_ticks;
+ to_ticks >>= 1;
+ if (jitter < (UINT32_MAX - to_ticks)) {
+ to_ticks += jitter;
+ } else {
+ to_ticks = UINT32_MAX;
+ }
+ }
if (net->heart_beat_delay < (UINT32_MAX - to_ticks)) {
to_ticks += net->heart_beat_delay;
} else {