funman300
21a81ad63c
Multi-agent pass over the store subsystem, 11 agents, findings run through three
adversarial verifiers. Full writeup in docs/plan-2026-08-05-store-subsystem.md.
THE REAL DISCARD TABLE IS RECOVERED. quick_sell() paid an invented rating tier
(600/300/150/50) that was wrong for every single card. The real table is
fcc_discardcoins in the client's own game DB, 141 rows keyed (cardtype, level, rare),
read out of the running client and verified 22/22 against live items:
value = round_half_up(rating * price / 100)
level = 3 if rating >= 75, 2 if 65..74, else 1 (0x180141e8a..0x180141ea3,
derived from rating, NOT a wire field)
cardtype = FUN_1800d8330(cardsubtypeid), decoded from its jump table and checked
across every subtype 0..599 with zero disagreements
A 94-rated gold rare is 752, not 600. A 76 rare is 608, not 150. A 55 bronze is 17,
not 50.
This also closes a disagreement nobody had noticed: the CLIENT already computes and
displays the correct value locally whenever our discardValue (atom 0xd7) is 0 or
absent. FUN_18013fe00 stores our value at item +0x38 and the guard at 0x180141025
skips the local computation when it is non-zero. So the screen has been showing the
real number while the server paid a made-up one, on every quick sell ever made.
Verified beyond what the report claimed, because a missing table row pays ZERO and
that would be a regression the old flat tier could not produce: across all 236 items
in the live profile, 230 map to cardtype 1 and 6 to cardtype 6, and NOT ONE would pay
0 coins. Table reproduces at 141 rows and the worked example lands exactly.
ZERO WIRE CHANGE, FUT_DISCARD_TABLE default off. Nothing new is sent; only the coin
figure the server credits moves. This is the patch worth defaulting on after one
in-game check, which is simply quick-selling a card and seeing the coins paid match
the value the card was already displaying.
THE GROUPING BUG IS NOT IN CARDSDLL, and the fix ranked first would have wasted a
launch. Live in the running client all three display groups own exactly the right
pack, there is exactly one copy of each pack record in 4 GiB, and nothing we send is
mis-parsed. The parsed model is correct and the Scaleform layer picks the wrong pack
when turning a tile click into a category id. displayGroupAssetId is served as 1/5/6
while the screen's category field reads 3, and group tiles carry a hardcoded
CATEGORY_ID of 0. Confirmed by direct read: ordinal 3, assetId 6, i.e. Premium, while
the last click was Gold.
The heap map that made this possible, all scoped to one pid: display-group vector
control block, 3 elements of 0x108; group record fields at +0x00 sortPriority,
+0x04 displayGroupAssetId, +0x40 a one-element pack vector; inner pack record 0x1a8
with packType at +0x38, ids at +0x70/+0xac, price at +0xa0, quantities at +0xc0..+0xd0.
extPrice SHOULD BE DELETED, not corrected. Both sub-parsers read only
externalPriceId; amount and currency are discarded. Sending the key at all creates an
"mtx" currency row that switches on a real-money price line the client can never fill
offline, which is the literal "or %1s" on every tile.
A WORRY NOBODY HAD RAISED, and I confirmed it from our own logs: the client has sent
packId 6 on every purchase it has ever made, four for four tonight and six for six
across history. We have never observed a successful buy of anything but Premium Gold.
Also settled: FUT_STORE_DISPLAYGROUP=0 is the right resting state, argued from
mechanism rather than from history; FUT_USERINFO=packs stays off because the
unopened-pack counter is client-mutable and the flag ladder silently drops squadList;
POST /user is a latent hard freeze that has never fired because the client never
issues that POST.
Honest coverage: the ActionScript layer is unread by everyone and every remaining
store mystery lives there.
Live: 439 contract checks pass, market suite passes, both flags off.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
60 lines
2.5 KiB
Python
60 lines
2.5 KiB
Python
"""DIMENSION 5 / unopenedPacks -- pass 1: dump the four deserializers end to end.
|
|
|
|
HYPOTHESIS: (a) FutCreateUser deser 0x18014cc60 has arms for starterPack(0x2e5) and
|
|
bonusPacks(0x5d) that call dedicated sub-deserializers; (b) userInfo 0x18013ec10 has an
|
|
arm for unopenedPacks(0x35e) that calls a sub-deser and then a singleton vtbl slot;
|
|
(c) pack element 0x18013af30 has an arm for packContentInfo(0x20c) calling a sub-deser
|
|
that holds unopened(0x35d).
|
|
|
|
CONTROL: 0x18013c6d0 (settings deser) is a deserializer of the SAME family with a
|
|
KNOWN answer -- exactly one key `configs`(0xa2). If the dump/parse pipeline is sound,
|
|
the settings dump must show 0xa2 and nothing else in its key ladder. Same syntactic
|
|
form family (ladder), so it controls the extraction, not just the decompile.
|
|
|
|
NO ABSENCE CLAIMS FROM THIS PASS: it only dumps. Full text goes to disk, lengths are
|
|
printed so truncation is visible.
|
|
"""
|
|
import traceback, os
|
|
|
|
OUT = "/tmp/claude-1000/-home-alex-Documents-OpenFUT/8e521ca1-ca3e-4138-bb96-df1744dd1d30/scratchpad/store"
|
|
|
|
try:
|
|
os.makedirs(OUT, exist_ok=True)
|
|
targets = {
|
|
"createuser_18014cc60": 0x18014cc60,
|
|
"userinfo_18013ec10": 0x18013ec10,
|
|
"packelem_18013af30": 0x18013af30,
|
|
"settings_18013c6d0": 0x18013c6d0, # CONTROL
|
|
}
|
|
for name, a in targets.items():
|
|
src = dec(a, 300)
|
|
p = os.path.join(OUT, "dec_%s.c" % name)
|
|
with open(p, "w") as f:
|
|
f.write(src)
|
|
f2 = func(a)
|
|
print("== %s @ %#x fn=%s body=%#x-%#x declen=%d" % (
|
|
name, a, f2.getName() if f2 else "?",
|
|
int(f2.getEntryPoint().getOffset()) if f2 else 0,
|
|
int(f2.getBody().getMaxAddress().getOffset()) if f2 else 0,
|
|
len(src)))
|
|
print(" written %s" % p)
|
|
|
|
# Raw instruction-level immediate enumeration for each target, so the ladder /
|
|
# switch / sub-dec forms are all visible regardless of how Ghidra renders them.
|
|
for name, a in targets.items():
|
|
f2 = func(a)
|
|
if f2 is None:
|
|
print("!! no function at %#x" % a)
|
|
continue
|
|
lines = []
|
|
it = listing.getInstructions(f2.getBody(), True)
|
|
while it.hasNext():
|
|
ins = it.next()
|
|
lines.append("%#x %s" % (int(ins.getAddress().getOffset()), str(ins)))
|
|
p = os.path.join(OUT, "asm_%s.txt" % name)
|
|
with open(p, "w") as fh:
|
|
fh.write("\n".join(lines))
|
|
print("== asm %s: %d instructions -> %s" % (name, len(lines), p))
|
|
except Exception:
|
|
traceback.print_exc()
|