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
diff --git a/quic/core/quic_connection_stats.h b/quic/core/quic_connection_stats.h
index d0211da..3579be0 100644
--- a/quic/core/quic_connection_stats.h
+++ b/quic/core/quic_connection_stats.h
@@ -158,6 +158,10 @@
// Max consecutive retransmission timeout before making forward progress.
size_t max_consecutive_rto_with_forward_progress = 0;
+
+ // Number of sent packets that were encapsulated using Legacy Version
+ // Encapsulation.
+ QuicPacketCount sent_legacy_version_encapsulated_packets = 0;
};
} // namespace quic
