richardopenai e8bb1b6641 Limit decoded HTTP/3 response headers in the TCP tunnel (#56024) ...

## Why

QPACK can expand compact response headers into large decoded field sections. Bound their size before `h3` constructs its capacity-limited `HeaderMap`.

## What changed

Set the HTTP/3 client's maximum field section size to 64 KiB so oversized responses are rejected with `HeaderTooBig`.

## Testing

Add a regression test that sends QPACK static references around the size limit and a much larger expansion. Verify that oversized responses are rejected and a subsequent valid response succeeds on the same connection.

GitOrigin-RevId: d7c83a7a755dfafae05919ec52542ffce40a1ef4

2026-10-22 00:19:02 +00:00

..

control.rs

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diagnostics_tests.rs

Add opt-in JSON diagnostics for TCP tunnels (#50131)

2026-10-02 00:46:14 +00:00

diagnostics.rs

Add opt-in JSON diagnostics for TCP tunnels (#50131)

2026-10-02 00:46:14 +00:00

lib_tests.rs

Limit decoded HTTP/3 response headers in the TCP tunnel (#56024)

2026-10-22 00:19:02 +00:00

lib.rs

Limit decoded HTTP/3 response headers in the TCP tunnel (#56024)

2026-10-22 00:19:02 +00:00