Matt Joras d9d2d29af6 Buffer packets on the client when we don't have ciphers. ...

Summary:
This can happen when we don't get the server handshake data in time, but it is especially bad with 0RTT when it is potentially a full flight of 1RTT data that is dropped while we wait for the handshake PTO.

Note this leverages the existing CipherUnavailable mechanism, but processes them in a much more simple way than the server side. Additionally, only 1-RTT packets need to be buffered.

Reviewed By: yangchi, lnicco

Differential Revision: D27634184

fbshipit-source-id: db5ba0b9f07176d106f709c7a11d83d0fc8281b7

2021-04-08 16:38:53 -07:00

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