mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-26 21:24:12 +08:00
259 lines
11 KiB
C++
259 lines
11 KiB
C++
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#include"Bootup.h"
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/**
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* jichi 5/22/2015: Insert Bootup hook
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* Sample games:
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* - [090709] [PIL] 仏蘭西少女
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* - [110318] [Daisy2] 三国恋戦<EFBFBD> * - [110329] [PIL/SLASH] 神学校
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* - [150527] [Daisy2] 絶対階級学<EFBFBD> *
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* Properties
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* - There is Bootup.dat existing in the game folder.
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* - lstrlenW can find text repeating once
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* - GetCharABCWidthsW and TextOutW can find cached text that missing characters
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* GetCharABCWidthsA and TextOutA for old games.
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* - There is only one TextOut (W for new and A for old).
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*
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* Logic:
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* + GDI hook
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* - Hook to the caller of TextOut
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* + Lstr hook
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* - Find last (second) caller of the first GetCharABCWidths after int3
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* - Find the lstrlen function in this caller, and hook to it
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*
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* Full text is in arg1, shifted one by one.
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* Character to paint is also in arg3
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*
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* All Bootup games are slightly different
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* - 三国恋戦<EFBFBD>仏蘭西少女: text in both lstrlenA and caller of TextOutA
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* But I didn't find correct lstrlenA to hook. BootupLstrA find nothing for 仏蘭西少女 and name for 三国恋戦<EFBFBD>
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* - 神学校: text in both lstrlenW and TextOutW, but lstrlenW has repetition
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* Caller of TextOutW the same as that of TextOutA
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* - 絶対階級学<EFBFBD> text in both lstrlenW and TextOutW. But TextOutW's name has repetition
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* Caller of TextOutW different 神学校
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*
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* Here's the beginning of caller of TextOutW in 絶対階級学<EFBFBD>
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* 00B61ADD CC INT3
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* 00B61ADE CC INT3
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* 00B61ADF CC INT3
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* 00B61AE0 55 PUSH EBP
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* 00B61AE1 8BEC MOV EBP,ESP
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* 00B61AE3 81EC 98000000 SUB ESP,0x98
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* 00B61AE9 53 PUSH EBX
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* 00B61AEA 56 PUSH ESI
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* 00B61AEB 57 PUSH EDI
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* 00B61AEC 8BF2 MOV ESI,EDX
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* 00B61AEE 8BF9 MOV EDI,ECX
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* 00B61AF0 8975 D8 MOV DWORD PTR SS:[EBP-0x28],ESI
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* 00B61AF3 897D E0 MOV DWORD PTR SS:[EBP-0x20],EDI
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* 00B61AF6 E8 A5FEFFFF CALL .00B619A0
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* 00B61AFB 8BD8 MOV EBX,EAX
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* 00B61AFD 895D CC MOV DWORD PTR SS:[EBP-0x34],EBX
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* 00B61B00 66:833B 00 CMP WORD PTR DS:[EBX],0x0
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* 00B61B04 0F85 0B020000 JNZ .00B61D15
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* 00B61B0A B8 00010000 MOV EAX,0x100
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* 00B61B0F 66:8933 MOV WORD PTR DS:[EBX],SI
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* 00B61B12 66:3BF0 CMP SI,AX
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* 00B61B15 72 26 JB SHORT .00B61B3D
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* 00B61B17 8B47 3C MOV EAX,DWORD PTR DS:[EDI+0x3C]
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* 00B61B1A 85C0 TEST EAX,EAX
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* 00B61B1C 74 1F JE SHORT .00B61B3D
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* 00B61B1E 8B57 44 MOV EDX,DWORD PTR DS:[EDI+0x44]
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* 00B61B21 85D2 TEST EDX,EDX
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* 00B61B23 7E 18 JLE SHORT .00B61B3D
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* 00B61B25 33C9 XOR ECX,ECX
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* 00B61B27 85D2 TEST EDX,EDX
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* 00B61B29 7E 12 JLE SHORT .00B61B3D
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* 00B61B2B 8B47 40 MOV EAX,DWORD PTR DS:[EDI+0x40]
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* 00B61B2E 8BFF MOV EDI,EDI
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* 00B61B30 66:3930 CMP WORD PTR DS:[EAX],SI
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* 00B61B33 74 6F JE SHORT .00B61BA4
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* 00B61B35 41 INC ECX
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* 00B61B36 83C0 02 ADD EAX,0x2
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* 00B61B39 3BCA CMP ECX,EDX
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* 00B61B3B ^7C F3 JL SHORT .00B61B30
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* 00B61B3D 33C0 XOR EAX,EAX
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* 00B61B3F 66:8945 9E MOV WORD PTR SS:[EBP-0x62],AX
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* 00B61B43 8B47 04 MOV EAX,DWORD PTR DS:[EDI+0x4]
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* 00B61B46 0FAF47 1C IMUL EAX,DWORD PTR DS:[EDI+0x1C]
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* 00B61B4A 0FAF47 1C IMUL EAX,DWORD PTR DS:[EDI+0x1C]
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* 00B61B4E 0FAF47 18 IMUL EAX,DWORD PTR DS:[EDI+0x18]
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* 00B61B52 50 PUSH EAX
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* 00B61B53 6A 00 PUSH 0x0
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* 00B61B55 FF77 14 PUSH DWORD PTR DS:[EDI+0x14]
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* 00B61B58 66:8975 9C MOV WORD PTR SS:[EBP-0x64],SI
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* 00B61B5C E8 2FC20200 CALL .00B8DD90
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* 00B61B61 83C4 0C ADD ESP,0xC
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* 00B61B64 8D45 9C LEA EAX,DWORD PTR SS:[EBP-0x64]
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* 00B61B67 6A 01 PUSH 0x1
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* 00B61B69 50 PUSH EAX
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* 00B61B6A 6A 00 PUSH 0x0
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* 00B61B6C 6A 00 PUSH 0x0
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* 00B61B6E FF77 10 PUSH DWORD PTR DS:[EDI+0x10]
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* 00B61B71 FF15 8820BB00 CALL DWORD PTR DS:[0xBB2088] ; gdi32.TextOutW
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* 00B61B77 8B47 1C MOV EAX,DWORD PTR DS:[EDI+0x1C]
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* 00B61B7A 8B57 14 MOV EDX,DWORD PTR DS:[EDI+0x14]
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* 00B61B7D 8B7F 04 MOV EDI,DWORD PTR DS:[EDI+0x4]
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* 00B61B80 8B73 0C MOV ESI,DWORD PTR DS:[EBX+0xC]
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* 00B61B83 0FAFF8 IMUL EDI,EAX
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* 00B61B86 48 DEC EAX
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* 00B61B87 8975 C4 MOV DWORD PTR SS:[EBP-0x3C],ESI
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* 00B61B8A 897D C8 MOV DWORD PTR SS:[EBP-0x38],EDI
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*
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* TextOutW's caller for 神学校
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* 0113183E CC INT3
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* 0113183F CC INT3
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* 01131840 55 PUSH EBP
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* 01131841 8BEC MOV EBP,ESP
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* 01131843 83EC 74 SUB ESP,0x74
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* 01131846 53 PUSH EBX
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* 01131847 56 PUSH ESI
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* 01131848 8B75 08 MOV ESI,DWORD PTR SS:[EBP+0x8]
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* 0113184B 57 PUSH EDI
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* 0113184C 8B7D 0C MOV EDI,DWORD PTR SS:[EBP+0xC]
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* 0113184F 8BCF MOV ECX,EDI
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* 01131851 8BD6 MOV EDX,ESI
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* 01131853 E8 A8FEFFFF CALL .01131700
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* 01131858 8BD8 MOV EBX,EAX
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* 0113185A 66:833B 00 CMP WORD PTR DS:[EBX],0x0
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* 0113185E 895D 90 MOV DWORD PTR SS:[EBP-0x70],EBX
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* 01131861 0F85 700F0000 JNZ .011327D7
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* 01131867 B8 00010000 MOV EAX,0x100
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* 0113186C 66:893B MOV WORD PTR DS:[EBX],DI
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* 0113186F 66:3BF8 CMP DI,AX
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* 01131872 72 2E JB SHORT .011318A2
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* 01131874 8B56 3C MOV EDX,DWORD PTR DS:[ESI+0x3C]
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* 01131877 85D2 TEST EDX,EDX
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* 01131879 74 27 JE SHORT .011318A2
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* 0113187B 8B46 44 MOV EAX,DWORD PTR DS:[ESI+0x44]
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* 0113187E 85C0 TEST EAX,EAX
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* 01131880 7E 20 JLE SHORT .011318A2
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* 01131882 33FF XOR EDI,EDI
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* 01131884 85C0 TEST EAX,EAX
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* 01131886 7E 1A JLE SHORT .011318A2
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* 01131888 8B46 40 MOV EAX,DWORD PTR DS:[ESI+0x40]
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* 0113188B EB 03 JMP SHORT .01131890
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* 0113188D 8D49 00 LEA ECX,DWORD PTR DS:[ECX]
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* 01131890 66:8B4D 0C MOV CX,WORD PTR SS:[EBP+0xC]
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* 01131894 66:3908 CMP WORD PTR DS:[EAX],CX
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* 01131897 74 74 JE SHORT .0113190D
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* 01131899 47 INC EDI
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* 0113189A 83C0 02 ADD EAX,0x2
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* 0113189D 3B7E 44 CMP EDI,DWORD PTR DS:[ESI+0x44]
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* 011318A0 ^7C EE JL SHORT .01131890
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* 011318A2 66:8B45 0C MOV AX,WORD PTR SS:[EBP+0xC]
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* 011318A6 66:8945 8C MOV WORD PTR SS:[EBP-0x74],AX
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* 011318AA 8B46 1C MOV EAX,DWORD PTR DS:[ESI+0x1C]
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* 011318AD 0FAFC0 IMUL EAX,EAX
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* 011318B0 0FAF46 18 IMUL EAX,DWORD PTR DS:[ESI+0x18]
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* 011318B4 0FAF46 04 IMUL EAX,DWORD PTR DS:[ESI+0x4]
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* 011318B8 8B56 14 MOV EDX,DWORD PTR DS:[ESI+0x14]
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* 011318BB 33C9 XOR ECX,ECX
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* 011318BD 50 PUSH EAX
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* 011318BE 51 PUSH ECX
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* 011318BF 52 PUSH EDX
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* 011318C0 66:894D 8E MOV WORD PTR SS:[EBP-0x72],CX
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* 011318C4 E8 87060200 CALL .01151F50
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* 011318C9 8B4E 10 MOV ECX,DWORD PTR DS:[ESI+0x10]
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* 011318CC 83C4 0C ADD ESP,0xC
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* 011318CF 6A 01 PUSH 0x1
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* 011318D1 8D45 8C LEA EAX,DWORD PTR SS:[EBP-0x74]
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* 011318D4 50 PUSH EAX
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* 011318D5 6A 00 PUSH 0x0
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* 011318D7 6A 00 PUSH 0x0
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* 011318D9 51 PUSH ECX
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* 011318DA FF15 38101701 CALL DWORD PTR DS:[0x1171038] ; gdi32.TextOutW
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* 011318E0 8B4E 1C MOV ECX,DWORD PTR DS:[ESI+0x1C]
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* 011318E3 8B46 04 MOV EAX,DWORD PTR DS:[ESI+0x4]
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* 011318E6 8B56 14 MOV EDX,DWORD PTR DS:[ESI+0x14]
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* 011318E9 0FAFC1 IMUL EAX,ECX
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* 011318EC 8B7B 0C MOV EDI,DWORD PTR DS:[EBX+0xC]
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*/
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namespace { // unnamed
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bool BootupGDIHook(hook_stack* stack, HookParam *hp)
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{
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DWORD arg2 = stack->stack[2];
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if ((arg2 & 0xffff0000)) { // if arg2 high bits are there, this is new Bootup game
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hp->type |= DATA_INDIRECT;
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hp->offset = get_stack(3);
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hp->split = get_reg(regs::ebx);
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}
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return false; // run once and stop hooking
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}
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bool InsertBootupGDIHook()
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{
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bool widechar = true;
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ULONG addr = MemDbg::findCallerAddressAfterInt3((ULONG)TextOutW, processStartAddress, processStopAddress);
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if (!addr) {
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addr = MemDbg::findCallerAddressAfterInt3((ULONG)TextOutA, processStartAddress, processStopAddress);
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widechar = false;
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}
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if (!addr) {
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ConsoleOutput("BootupGDI: failed to find TextOut");
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return false;
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}
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HookParam hp;
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hp.address = addr;
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hp.type = USING_SPLIT|NO_CONTEXT|USING_CHAR; // use NO_CONTEXT to get rid of floating reladdr
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hp.type |= widechar ? CODEC_UTF16 : CODEC_ANSI_BE; // use context as split is sufficient, but will produce floating split
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hp.offset=get_stack(2); // arg2, character in arg2, could be modified by hook
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if (widechar)
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hp.split = get_reg(regs::edx);
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else
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hp.split = get_stack(1);
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hp.hook_fun = BootupGDIHook; // adjust hook parameter at runtime
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ConsoleOutput("INSERT BootupGDI");
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ConsoleOutput("BootupGDI: disable GDI hooks");
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return NewHook(hp, widechar ? "BootupW" : "BootupA");
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}
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bool InsertBootupLstrHook() // for character name
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{
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bool widechar = true;
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ULONG addr = MemDbg::findLastCallerAddressAfterInt3((ULONG)GetCharABCWidthsW, processStartAddress, processStopAddress);
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if (!addr) {
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// Do not hook to lstrlenA, which causes text extraction to stop
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//addr = MemDbg::findLastCallerAddressAfterInt3((ULONG)GetCharABCWidthsA, processStartAddress, processStopAddress);
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//widechar = false;
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}
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if (!addr) {
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ConsoleOutput("BootupLstr: failed to find GetCharABCWidths");
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return false;
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}
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//GROWL_DWORD2(addr, processStartAddress);
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//enum { range = 0x200 }; // 0x012A2CCB - 0x12A2CB0 = 0x1b
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addr = MemDbg::findCallAddress(widechar ? (ULONG)::lstrlenW : (ULONG)::lstrlenA,
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processStartAddress, processStopAddress,
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addr - processStartAddress); //, range); // no range
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if (!addr) {
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ConsoleOutput("BootupLstr: failed to find lstrlen");
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return false;
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}
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HookParam hp;
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hp.address = addr;
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hp.type = widechar ? (USING_STRING|CODEC_UTF16) : USING_STRING; // use context as split is sufficient, but will produce floating split
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//hp.type = CODEC_UTF16|NO_CONTEXT|USING_SPLIT; // use text address as split
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//hp.split = 0;
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ConsoleOutput("INSERT BootupLstr");
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return NewHook(hp, widechar ? "BootupLstrW" : "BootupLstrA");
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}
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} // unnamed namespace
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bool InsertBootupHook()
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{
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bool ret = InsertBootupGDIHook();
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InsertBootupLstrHook();
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return ret;
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}
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bool Bootup::attach_function() {
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return InsertBootupHook();
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}
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