tree 7d7409730a44650696afb8dcbb0d69c8be88ac3d
parent 63bdfe586f8ceddf5e0823b75b1c595cbd380b2e
author danzh <danzh@google.com> 1609341429 -0800
committer Copybara-Service <copybara-worker@google.com> 1609341461 -0800

Make QuicConnection count bytes sent/received in probing packets on alternative paths.

Add an AlternativePathState object in QuicConnection which keeps track of the state of alternative path seen most recently. The states includes effective peer address which is unique to each path and the bytes sent/received to that address.

In order to increment bytes sent on the alternative path, pass the current packet's effective peer address around in packet creator and in quic connection to track the effective peer address which each packet is sent to.

Make connection to check if the received packet or the packet to send is on default path or not before increment existing counters: current_incoming_packet_received_bytes_counted_ and bytes_sent_before_address_validation_

Protected by quic_reloadable_flag_quic_count_bytes_on_alternative_path_seperately.

PiperOrigin-RevId: 349555303
Change-Id: I527938ba9201a3f15162b5f5c1bf4626aab79f9d