| Dave Wallace | caa52f3 | 2019-11-01 14:41:29 -0400 | [diff] [blame] | 1 | diff --git a/lib/quicly.c b/lib/quicly.c |
| 2 | index 95d5f13..200515f 100644 |
| 3 | --- a/lib/quicly.c |
| 4 | +++ b/lib/quicly.c |
| 5 | @@ -3551,6 +3551,10 @@ static int handle_ack_frame(quicly_conn_t *conn, struct st_quicly_handle_payload |
| 6 | |
| 7 | QUICLY_PROBE(QUICTRACE_RECV_ACK_DELAY, conn, probe_now(), frame.ack_delay); |
| 8 | |
| 9 | + /* Detect and fix time skew */ |
| 10 | + if (now < largest_newly_acked.sent_at) |
| 11 | + now = largest_newly_acked.sent_at; |
| 12 | + |
| 13 | /* Update loss detection engine on ack. The function uses ack_delay only when the largest_newly_acked is also the largest acked |
| 14 | * so far. So, it does not matter if the ack_delay being passed in does not apply to the largest_newly_acked. */ |
| 15 | quicly_loss_on_ack_received(&conn->egress.loss, largest_newly_acked.packet_number, now, largest_newly_acked.sent_at, |