* tap/fuzz: transport socket extension for traffic capture.
This PR introduces a transport socket extension that wraps a given transport socket, interposes on its
plain text traffic and records it into a proto trace file on the filesystem. This can be used for a
number of purposes:
1. As a corpus for fuzzing the data plane.
2. Converted to PCAP using a soon-to-be-written utility, allowing existing tools such as Wireshark
to be used to decode L4/L7 protocol history in the trace. Essentially this lets us take advantage
of the PCAP ecosystem.
Relates to #1413 and #508.
Risk Level: Low (opt-in).
Testing: New SSL integration tests, demonstrating plain text intercept.
Signed-off-by: Harvey Tuch <htuch@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ 6c7a91733469f76381487f9ca78bdece6825c8c9
data-plane-api(CircleCI)