tree 94de722cf2498b63c6b0c5272e96ca7952cdd9ac
parent bd7ad68ab12b14b22cad5054f792e8474232b8be
author dschinazi <dschinazi@google.com> 1592941121 -0700
committer Copybara-Service <copybara-worker@google.com> 1592941159 -0700

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