"""D2 QUICK SELL ECONOMY, batch 1. HYPOTHESIS (from an earlier agent's decompile of the shared ITEM element deser FUN_18013fe00, scratchpad/packres/d4_item_deser.txt lines 779-801): the client computes a card's quick-sell value LOCALLY, from a game-database table called "fcc_discardcoins", ONLY when the server-sent discardValue (atom 0xd7) is zero: if ((int)local_150 == 0) { // discardValue not sent / 0 q = select "price" from "fcc_discardcoins" where cardtype = local_13c // = f(cardsubtypeid) and level = local_138._4_4_ and = uStack_130 & 0xffffffff // = rareflag p = q.row0["price"] v = (rating * p) / 100, round half up at remainder > 0x31 local_150.hi = v } QUESTIONS THIS BATCH ANSWERS A. what is the string at DAT_18022315c (the third query key)? B. where does "level" (local_138._4_4_) come from? no JSON atom in the switch writes it, so read the RAW INSTRUCTIONS, not the decompiler's locals. C. what is FUN_1800d8330 (cardsubtypeid -> cardtype)? D. what are the db-query wrapper functions 0x1801a0020 / 0x18019fd10 / 0x18019fd40 / 0x1801a0280 / 0x1801a0000 / 0x18019ff00 / 0x18019ffc0 / 0x18019fea0 / 0x1801a00a0 / 0x1801a0080 / 0x18019fe40 / 0x18019fe10, i.e. confirm this really is a SELECT col FROM table WHERE k=v chain, and find the underlying dbdata entry point so the table can be located live. E. Q2: FutDiscardCardServerResponse deser 0x180127300 stores totalCredits at resp+0x28. WHO reads resp+0x28, and does it ASSIGN or ACCUMULATE? F. Q3: bulk discard. FUN_180126f40 builds a body {"itemId":[...]} (atom 0x16d). which action/route uses it? print its callers and their callers. CONTROLS * class_deser is known-broken in rebuilt projects, so classes are resolved with find_all(b"RS4:" + name). CONTROL: RS4:FutSquadSaveServerResponse must be found exactly once at 0x18022c618 (measured on disk this session). If that fails the whole batch is suspect. * CONTROL for the atom-arm search: the ITEM deser must contain an arm for atom 0x274 (rating) AND one for 0xd7 (discardValue); both are switch-case labels, the same syntactic form as anything else searched for here. Everything is printed in full with len() stated. Nothing is truncated. """ import traceback, os OUT = "/tmp/claude-1000/-home-alex-Documents-OpenFUT/8e521ca1-ca3e-4138-bb96-df1744dd1d30/scratchpad/store/qs/" os.makedirs(OUT, exist_ok=True) def dump(tag, va, path=None): try: src = dec(va) except Exception as e: src = "// decompile threw %r" % (e,) print("=" * 78) print("%s %#x fname=%s len(src)=%d (FULL, NOT TRUNCATED)" % (tag, va, fname(va), len(src))) print("=" * 78) print(src) if path: open(OUT + path, "w").write("// %s %#x len=%d\n%s" % (tag, va, len(src), src)) return src def disasm(lo, hi, tag): print("-" * 78) print("ASM %s %#x..%#x" % (tag, lo, hi)) print("-" * 78) a = addr(lo) while int(a.getOffset()) < hi: ins = listing.getInstructionAt(a) if ins is None: a = a.add(1) continue print("%#x %s" % (int(a.getOffset()), str(ins))) a = ins.getAddress().add(ins.getLength()) try: print("##### CONTROL 0: RS4 literal lookup #####") for nm in ("FutSquadSaveServerResponse", "FutDiscardCardServerResponse", "FutDiscardCardByResServerResponse", "FutDiscardACardServerResponse"): h = find_all(b"RS4:" + nm.encode() + b"\x00") print(" RS4:%-40s hits=%s" % (nm, [hex(x) for x in h])) print("\n##### A: strings used by the discardcoins query #####") for nm, a in (("DAT_18022315c", 0x18022315c), ("fcc_discardcoins_lit", 0x1802231f0), ("DAT_1801eeeb0", 0x1801eeeb0), ("DAT_1802ef590", 0x1802ef590)): try: print(" %-22s %#x -> %r bytes=%s" % (nm, a, rd_str(a, 64), read_bytes(a, 24).hex())) except Exception as e: print(" %-22s %#x -> ERR %r" % (nm, a, e)) # neighbourhood of the literal pool so column names are visible try: blob = read_bytes(0x180223100, 0x200) print(" literal pool 0x180223100..0x180223300:") for piece in blob.split(b"\x00"): if len(piece) >= 3: print(" %r" % piece) except Exception as e: print(" pool ERR %r" % e) try: print(" _DAT_1801f66a0 16 bytes = %s" % read_bytes(0x1801f66a0, 16).hex()) except Exception as e: print(" _DAT_1801f66a0 ERR %r" % e) print("\n##### B: raw instructions of the discardcoins block in the ITEM deser #####") # the query build sits after atom dispatch; xref to the literal pins it for frm, typ, fn, ent in xrefs_to(0x1802231f0): print(" xref to fcc_discardcoins literal: from %#x %s in %s (%#x)" % (frm, typ, fn, ent)) disasm(0x180140f80, 0x1801411e0, "item deser: discardcoins query build") print("\n##### B2: every write to the two stack slots feeding cardtype/level #####") print(" (searching the whole ITEM deser for MOV [RBP+..] style stores is noisy;") print(" instead: full decompile is dumped to disk, and the asm above is authoritative)") dump("ITEM element deser FUN_18013fe00", 0x18013fe00, "qs_item_deser.txt") print("\n##### C: cardsubtypeid -> cardtype #####") dump("FUN_1800d8330 cardsubtype->cardtype", 0x1800d8330, "qs_d8330.txt") dump("FUN_1800d84e0", 0x1800d84e0, "qs_d84e0.txt") print("\n##### D: the db query wrapper chain #####") for a in (0x1801a0020, 0x18019fd10, 0x18019fd40, 0x1801a0280, 0x1801a0000, 0x18019ff00, 0x18019ffc0, 0x18019fea0, 0x1801a00a0, 0x1801a0080, 0x18019fe40, 0x18019fe10): dump("dbquery %#x" % a, a, "qs_db_%x.txt" % a) print("\n##### E: discard response consumers #####") dump("FutDiscardCard deser FUN_180127300", 0x180127300, "qs_discard_deser.txt") dump("FUN_1800d7af0 (int conv used on totalCredits)", 0x1800d7af0, "qs_d7af0.txt") print(" --- callers of the discard deser / its owning class ---") for frm, typ, fn, ent in xrefs_to(0x180127300): print(" xref %#x %s %s %#x" % (frm, typ, fn, ent)) # the singleton FUN_18011a830 vtable: slot 0xa30 removes an item; find the # credits setter near it dump("singleton getter FUN_18011a830", 0x18011a830, "qs_singleton.txt") print("\n##### F: bulk discard #####") dump("bulk discard body builder FUN_180126f40", 0x180126f40, "qs_bulkbody.txt") dump("single discard url builder FUN_180127570", 0x180127570, "qs_urlbuild.txt") for a in (0x180126f40, 0x180127570): print(" --- xrefs to %#x ---" % a) for frm, typ, fn, ent in xrefs_to(a): print(" %#x %s %s %#x" % (frm, typ, fn, ent)) if ent: for f2, t2, n2, e2 in xrefs_to(ent): print(" ^ %#x %s %s %#x" % (f2, t2, n2, e2)) print("\n##### F2: action table rows for the three discard actions #####") for nm, rowa in (("DiscardCard", 0x1802cb230), ("DiscardCardByRes", 0x1802cb260), ("DiscardACard", 0x1802cb290)): try: print(" %s row %#x bytes=%s" % (nm, rowa, read_bytes(rowa, 0x30).hex())) except Exception as e: print(" %s ERR %r" % (nm, e)) for frm, typ, fn, ent in xrefs_to(rowa): print(" xref %#x %s %s %#x" % (frm, typ, fn, ent)) except Exception: traceback.print_exc()