Investigation + design only (no client/backend/binary changes, no live
Store experiment). Reconfirmed CardsDLL_Win64_retail.dll (4706a881..,
unpacked) against a freshly rebuilt Ghidra project on .105; FIFA17.exe
(29c31cef..) is Denuvo-packed so the Scaleform decision is unreadable.
PART II added to docs/plans/FIFA17_EMPTY_MYPACKS_CLIENT_FIX.md:
- Native category path traced: FUN_18007dab0 (store render, RVA 0x7dab0)
reads screen+0x290; My Packs funnels through FUN_1800147f0 (0x147f0) ->
FUN_180014420 (0x14420, NULL on ordinal miss) -> crash MOV [RDX+0x8] at
0x14882 ([NULL+0x48]), matching the Exp-B minidump. Tab->ordinal map
FUN_180014580 (0=mypacks..5=special); category 0 = list-all (Browse).
- Unopened-pack count is a data-manager singleton (vtbl[0x4d8] get /
[0x4e0] set), reachable from the store resolver.
- Vehicle: existing openfut-hook -> version.dll proxy (already deployed);
reuse ssl_patch signature-scan + connect_hook inline detour. No new loader.
- Preferred strategy A: entry-hook FUN_18007dab0; when the requested
category is My Packs and unopened count==0, force screen+0x290=0 (Browse).
Removes crash + fake 65534 tile + dialog + nav gate; count>0 untouched.
- Ranked B (resolver NULL fallback, higher risk) and C (null-guard, crash-only).
- Build guard: module gate + SHA/PE + signature scan; unknown build -> no
patch, backend sentinel remains fallback.
- First experiment design (needs a later, separately-authorized backend
empty-no-sentinel test mode) + client rollback (config flag / dll swap).
- Keep backend 65534 sentinel deployed until strategy A is verified.
Describes the FIFA 17 client/data model only; not OpenFUT Core assumptions.
funman300
6746c75302