The OnlineStatusEventT::HandleMessage dispatch resolves its game-side
listener only at runtime (call [rax+0x28]). openfut_listener_stub patches
FIFA23.exe+0x274d4d7 to replicate the four dispatch instructions while
logging the resolved vtable/fn, then resumes. Alignment-safe (saves/rounds
rsp before the log call). Result: listener = FIFA23.exe+0x2751060 = ret 0,
a no-op default vtable slot -> the online->auth transition is state-polled,
not callback-driven.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Hook-side tooling for the LSX/Blaze reverse-engineering effort:
- probe.rs (new, `probe` feature): passive logging detours on FIFA's online-flow
functions via the unhook/rehook pattern (no trampoline/relocation, works on
RIP-relative prologues). Deferred install waits for anadius64.dll to load, then
logs enter/return for GoOnline + GetInternetConnectedState (anadius) and the
OnlineStatusEvent/Login deserializers (FIFA23.exe). Revealed that our pushed LSX
events reach FIFA and parse OK, while GoOnline never fires — localizing the online
gate to FIFA's game-side event consumer.
- connect_hook.rs: redirect FIFA's LSX connect :3216 → :3217 so it lands on the
native openfut-bridge LSX server (slips past anadius's in-process :3216 intercept);
gated off under the `capture_baseline` feature.
- recv_hook.rs: boundary-safe trampolines + LSX peer filtering for the
capture_baseline path (log anadius's real LSX frames when the redirect is off).
Build the instrumented DLL with `--features probe` (or `--features capture_baseline`
for the anadius-baseline capture). Both features are off by default.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
funman300