commit 6458eb3ad5f706c6d25418d32390c91f4807902a
author dschinazi <dschinazi@google.com> Tue Jun 23 12:38:41 2020 -0700
committer Copybara-Service <copybara-worker@google.com> Tue Jun 23 12:39:19 2020 -0700
tree 94de722cf2498b63c6b0c5272e96ca7952cdd9ac
parent bd7ad68ab12b14b22cad5054f792e8474232b8be

Introduce Legacy Version Encapsulation

This feature allows modern QUIC versions to encapsulate their first flight in Q043 packets, to support SNI-extraction middleboxes that do not support modern versions. More details in the design document at <go/quic-legacy-encaps>.

Introduce legacy version encapsulation, protected by gfe2_reloadable_flag_quic_dispatcher_legacy_version_encapsulation.

PiperOrigin-RevId: 317921151
Change-Id: I2dd8a3641caf3fd3d283613de3d117c1bdbea632

quic/core/quic_connection_stats.cc

diff --git a/quic/core/quic_connection_stats.cc b/quic/core/quic_connection_stats.cc
index 89f7e54..191918c 100644
--- a/quic/core/quic_connection_stats.cc
+++ b/quic/core/quic_connection_stats.cc
@@ -53,6 +53,8 @@
   os << " num_coalesced_packets_processed: "
      << s.num_coalesced_packets_processed;
   os << " num_ack_aggregation_epochs: " << s.num_ack_aggregation_epochs;
+  os << " sent_legacy_version_encapsulated_packets: "
+     << s.sent_legacy_version_encapsulated_packets;
   os << " }";
 
   return os;