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authorDave Wallace <dwallacelf@gmail.com>2019-11-01 14:41:29 -0400
committerFlorin Coras <florin.coras@gmail.com>2019-11-04 22:46:34 +0000
commitcaa52f3f93fba4685aa91124646683529de38725 (patch)
treea7417b1f2b161698206328ce656a77eb59e6c212
parent34d92ebde67efb96784e0360f25a3b3c3b86b8f0 (diff)
quic: fix quicly rtt time skew
- This patch to quicly fixes an intermittent failure in the rtt calculation when there is a time skew Type: fix Change-Id: If89c47401ee75c88f0eb65ae888b6914695b2aec Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
-rw-r--r--build/external/patches/quicly_0.0.5-vpp/0002-quicly-rtt-time-skew.patch15
1 files changed, 15 insertions, 0 deletions
diff --git a/build/external/patches/quicly_0.0.5-vpp/0002-quicly-rtt-time-skew.patch b/build/external/patches/quicly_0.0.5-vpp/0002-quicly-rtt-time-skew.patch
new file mode 100644
index 00000000000..40ac0276977
--- /dev/null
+++ b/build/external/patches/quicly_0.0.5-vpp/0002-quicly-rtt-time-skew.patch
@@ -0,0 +1,15 @@
+diff --git a/lib/quicly.c b/lib/quicly.c
+index 95d5f13..200515f 100644
+--- a/lib/quicly.c
++++ b/lib/quicly.c
+@@ -3551,6 +3551,10 @@ static int handle_ack_frame(quicly_conn_t *conn, struct st_quicly_handle_payload
+
+ QUICLY_PROBE(QUICTRACE_RECV_ACK_DELAY, conn, probe_now(), frame.ack_delay);
+
++ /* Detect and fix time skew */
++ if (now < largest_newly_acked.sent_at)
++ now = largest_newly_acked.sent_at;
++
+ /* Update loss detection engine on ack. The function uses ack_delay only when the largest_newly_acked is also the largest acked
+ * so far. So, it does not matter if the ack_delay being passed in does not apply to the largest_newly_acked. */
+ quicly_loss_on_ack_received(&conn->egress.loss, largest_newly_acked.packet_number, now, largest_newly_acked.sent_at,