Allow long connection IDs for unknown QUIC versions
In particular, if we're a server and a client sends us a packet with an unknown version and a connection ID of any length between 8 and 255, we must respond with a version negotiation packet that includes that same connection ID.
gfe-relnote: allow longer connection IDs, protected by new disabled flag gfe2_restart_flag_quic_allow_very_long_connection_ids
PiperOrigin-RevId: 286015388
Change-Id: I53ff4e602a19f30f56aba10ad7d877776597a5cf
8 files changed