`verify` inspects `$BIN --identity`, which is the file on disk. That is not
necessarily what is serving. Caught during gate 14 setup: the live process had
been started from 5bc39e9, then `cargo test` re-ran build.rs (the branch ref
moved when an unrelated script was committed) and restamped the on-disk binary
to fc411bb. `verify` then reported "build identity OK" about an artifact that
was not the running service.
`start` now records the stamped commit to $RUNDIR/redirector.commit, and
`verify-running` compares THAT against HEAD, refusing when they differ. The
existing on-disk check stays -- it is the right gate for "may I start this" --
but only the recorded stamp answers "is the thing currently serving the thing I
think it is", which is the question a live gate's evidence depends on.
Two live gate attempts failed with "An error occurred downloading the FUT
Squad Update" while the redirect response was verified byte-identical to the
Python oracle. Rolling back to the Python redirector fixed it, so the response
bytes were never the whole contract.
Log archaeology found the discriminator: the client polls
/fifa17/fut/rosterupdate.xml ~4x/min in every successful FUT session, and the
only gap in 300 recorded fetches is 03:47-03:58 -- exactly the two
Rust-redirector sessions. The Blaze RPC sequence over those sessions is
identical (msgNum 0-53), so the divergence is entirely outside Blaze.
A differential lifecycle probe against both redirectors found the two
behaviours this host never reproduced:
* the oracle drains the request body per Content-Length; this host stopped
at the header terminator, leaving unread data in the receive queue, which
makes Linux close with RST rather than FIN
* the oracle holds the connection open ~300ms before closing
(time.sleep(0.3)); this host closed at 0ms
Both are now reproduced. The dwell is a named constant, ORACLE_CLOSE_DWELL,
overridable only so the causal experiment -- set it to 0, confirm the failure
returns -- can be run without a rebuild.
The suite could not have caught either: it sent Content-Length: 0, so there
was never a body to drain. It now POSTs a body, and asserts a split-write body
is fully consumed.
Testing the drain via client-visible symptoms does NOT work -- verified by
mutation: with the drain removed the client still reads the buffered response
and sees close_notify before any reset. So the host records a per-connection
ConnOutcome and the test asserts on that. Both mutations (no-dwell, no-drain)
are now each caught by exactly one test.
This does not yet prove causation for the FUT Squad Update failure; it removes
the only two measured divergences. Gate 6 is the test.
The binary records only the commit it was built from -- no dirty-tree flag.
Cargo will not re-run a build script because another crate's source changed, so
a compiled-in 'clean' claim can be stale and is not a safeguard; that was
verified on the Blaze host.
scripts/verify-build-identity.sh establishes both facts at LAUNCH, where they
cannot go stale: the stamped commit equals HEAD, and the migration crates are
clean. It REFUSES rather than warns, because for a migration gate a warning on
stderr is something to scroll past.
--identity prints the stamp without valid configuration. The launcher must be
able to establish which commit a binary came from BEFORE deciding whether to
run it; requiring a correct environment first would invert the check.
redirector.sh mirrors sidecar.sh: refuses to start with an orphan present or
the port busy, matches the resolved executable rather than the command line
(pgrep -f matches any shell mentioning the name), and stop PROVES the process
is gone and the port free.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
TLS DEPENDENCY, as directed: the openssl crate directly with the `vendored`
feature. NOT native-tls. native-tls abstracts over whatever the platform
provides; here the requirement is the opposite -- precise, evidenced behaviour
for one legacy client -- which needs explicit control of the cipher list,
protocol floor/ceiling and security level. Vendored so a distro libssl update
cannot silently change whether FIFA 17 can connect.
Scoped to this crate alone. Neither OpenFUT Core nor the generic protocol
crates gain an OpenSSL dependency.
CIPHERS driven by the captured retail ClientHello, not by generic legacy
assumptions. The six RSA+AES suites it offers are enabled; RC4 and MD5 are
deliberately NOT, even though the client offers them -- it already negotiates
AES256-GCM-SHA384, so resurrecting RC4 for completeness would weaken the
service for nothing. TLS 1.2 floor and ceiling, matching the observed client;
the floor is not dropped to 1.0 pre-emptively because "the oracle permits it"
is not "the client requires it".
SECURITY LEVEL IS NOT LOWERED. Tried the default policy first, as directed,
and OpenSSL 3.6.3 accepts static-RSA/AES without weakening. No SECLEVEL change
was needed and none is applied; it remains overridable per-listener with
evidence.
CERTIFICATE: the proven Python redirector's material is reused, so the TLS
implementation stays the only variable in an A/B. Verified RSA-2048, CN
winter15.gosredirector.ea.com, cert/key modulus match; the key stays
gitignored.
SHARED CONFIG. New openfut-host-config is now the only crate that reads the
environment, and both hosts resolve endpoints through it. Two hosts each
parsing OPENFUT_ADVERTISE would be exactly the "separate helpers constructing
endpoints from different sources of truth" the address audit forbids.
VERIFICATION BY REAL HANDSHAKE, not by enumeration. The crate exposes no
accessor for a context's configured suites at this version, which turned out
better: the host now rehearses the retail handshake at startup with a client
restricted to exactly FIFA's eight suites and REFUSES TO SERVE if it fails, so
a cipher/version misconfiguration surfaces at boot rather than as an
unexplained failure during a live gate.
Gates 1-5 pass: TLS config unit tests; a FIFA-suite-only client negotiates
TLSv1.2/AES256-GCM-SHA384; each enabled RSA+AES suite negotiable alone; an
RC4-only client is refused; an ECDHE-only client is refused (proving no modern
policy was silently inherited); a full HTTPS round-trip returns bytes
IDENTICAL to the Python oracle's recorded response.
Cargo.lock committed for reproducibility: openssl 0.10.81, openssl-sys 0.9.117,
openssl-src 300.6.1+3.6.3 (OpenSSL 3.6.3). Updating openssl-src is NOT a
routine bump -- it requires re-running the FIFA compatibility gates.
Gates 6-14 need the retail client and are next.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
funman300