Simon Sundberg 219e962832 pping: Avoid timestamping pure TCP ACKs
Add a parsing_context struct to keep track data, data_end and
currently parsed position, as well as handling the difference between
data_end for XDP and TC through data_end_end pointer.

Use parsing_context struct to detect pure TCP ACKs, and avoid creating
identifier for them on egress (to avoid creating timestamp
entries). This solves issue of calculating RTTs in inproper contexts.

Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
2021-02-12 18:31:30 +01:00
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