mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-25 12:44:13 +08:00
154 lines
6.0 KiB
C++
154 lines
6.0 KiB
C++
#include"Tenco.h"
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/**
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* jichi 4/1/2014: Insert AU hook
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* Sample games:
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* 英雼<E88BB1>戦姫: /HBN-8*4@4AD807
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* 英雼<E88BB1>戦姫GOLD: /HB-8*4@4ADB50 (alternative)
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*
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* /HBN-8*4@4AD807
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* - addr: 4904967 = 0x4ad807
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* - ind: 4
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* - length_offset: 1
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* - off: 4294967284 = 0xfffffff4 = -0xc
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* - type: 1032 = 0x408
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*
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* 004ad76a |. ff50 04 |call dword ptr ds:[eax+0x4]
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* 004ad76d |. 48 |dec eax ; switch (cases 1..a)
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* 004ad76e |. 83f8 09 |cmp eax,0x9
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* 004ad771 |. 0f87 37020000 |ja 英雼<E88BB1>戦.004ad9ae
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* 004ad777 |. ff2485 2cda4a0>|jmp dword ptr ds:[eax*4+0x4ada2c]
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* 004ad77e |> 83bf c4000000 >|cmp dword ptr ds:[edi+0xc4],0x1 ; case 1 of switch 004ad76d
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* 004ad785 |. 75 35 |jnz short 英雼<E88BB1>戦.004ad7bc
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* 004ad787 |. 39af c8000000 |cmp dword ptr ds:[edi+0xc8],ebp
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* 004ad78d |. 72 08 |jb short 英雼<E88BB1>戦.004ad797
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* 004ad78f |. 8b87 b4000000 |mov eax,dword ptr ds:[edi+0xb4]
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* 004ad795 |. eb 06 |jmp short 英雼<E88BB1>戦.004ad79d
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* 004ad797 |> 8d87 b4000000 |lea eax,dword ptr ds:[edi+0xb4]
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* 004ad79d |> 0fb608 |movzx ecx,byte ptr ds:[eax]
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* 004ad7a0 |. 51 |push ecx
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* 004ad7a1 |. e8 d15b2a00 |call 英雼<E88BB1>戦.00753377
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* 004ad7a6 |. 83c4 04 |add esp,0x4
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* 004ad7a9 |. 85c0 |test eax,eax
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* 004ad7ab |. 74 0f |je short 英雼<E88BB1>戦.004ad7bc
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* 004ad7ad |. 8d5424 20 |lea edx,dword ptr ss:[esp+0x20]
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* 004ad7b1 |. 52 |push edx
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* 004ad7b2 |. b9 88567a00 |mov ecx,英雼<E88BB1>戦.007a5688
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* 004ad7b7 |. e8 a40cf6ff |call 英雼<E88BB1>戦.0040e460
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* 004ad7bc |> 8b8424 e400000>|mov eax,dword ptr ss:[esp+0xe4]
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* 004ad7c3 |. 8a48 01 |mov cl,byte ptr ds:[eax+0x1]
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* 004ad7c6 |. 84c9 |test cl,cl
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* 004ad7c8 |. 75 2e |jnz short 英雼<E88BB1>戦.004ad7f8
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* 004ad7ca |. 8d9f b0000000 |lea ebx,dword ptr ds:[edi+0xb0]
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* 004ad7d0 |. be ac6e7a00 |mov esi,英雼<E88BB1>戦.007a6eac
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* 004ad7d5 |. 8bcb |mov ecx,ebx
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* 004ad7d7 |. e8 e40af6ff |call 英雼<E88BB1>戦.0040e2c0
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* 004ad7dc |. 84c0 |test al,al
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* 004ad7de |. 0f84 ca010000 |je 英雼<E88BB1>戦.004ad9ae
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* 004ad7e4 |. be a86e7a00 |mov esi,英雼<E88BB1>戦.007a6ea8
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* 004ad7e9 |. 8bcb |mov ecx,ebx
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* 004ad7eb |. e8 d00af6ff |call 英雼<E88BB1>戦.0040e2c0
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* 004ad7f0 |. 84c0 |test al,al
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* 004ad7f2 |. 0f84 b6010000 |je 英雼<E88BB1>戦.004ad9ae
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* 004ad7f8 |> 6a 00 |push 0x0
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* 004ad7fa |. 8d8f b0000000 |lea ecx,dword ptr ds:[edi+0xb0]
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* 004ad800 |. 83c8 ff |or eax,0xffffffff
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* 004ad803 |. 8d5c24 24 |lea ebx,dword ptr ss:[esp+0x24]
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* 004ad807 |. e8 740cf6ff |call 英雼<E88BB1>戦.0040e480 ; jichi: hook here
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* 004ad80c |. e9 9d010000 |jmp 英雼<E88BB1>戦.004ad9ae
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* 004ad811 |> 8b8c24 e400000>|mov ecx,dword ptr ss:[esp+0xe4] ; case 4 of switch 004ad76d
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* 004ad818 |. 8039 00 |cmp byte ptr ds:[ecx],0x0
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* 004ad81b |. 0f84 8d010000 |je 英雼<E88BB1>戦.004ad9ae
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* 004ad821 |. b8 04000000 |mov eax,0x4
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* 004ad826 |. b9 c86e7a00 |mov ecx,英雼<E88BB1>戦.007a6ec8 ; ascii "<br>"
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* 004ad82b |. 8d5424 20 |lea edx,dword ptr ss:[esp+0x20]
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* 004ad82f |. e8 3c0df6ff |call 英雼<E88BB1>戦.0040e570
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* 004ad834 |. e9 75010000 |jmp 英雼<E88BB1>戦.004ad9ae
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* 004ad839 |> 8bbf b4000000 |mov edi,dword ptr ds:[edi+0xb4] ; case 5 of switch 004ad76d
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*/
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bool InsertTencoHook()
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{
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const BYTE bytes[] = {
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0x6a, 0x00, // 004ad7f8 |> 6a 00 |push 0x0
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0x8d,0x8f, 0xb0,0x00,0x00,0x00, // 004ad7fa |. 8d8f b0000000 |lea ecx,dword ptr ds:[edi+0xb0]
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0x83,0xc8, 0xff, // 004ad800 |. 83c8 ff |or eax,0xffffffff
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0x8d,0x5c,0x24, 0x24, // 004ad803 |. 8d5c24 24 |lea ebx,dword ptr ss:[esp+0x24]
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0xe8 //740cf6ff // 004ad807 |. e8 740cf6ff |call 英雼<E88BB1>戦.0040e480 ; jichi: hook here
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};
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enum { addr_offset = sizeof(bytes) - 1 };
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ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
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ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
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//reladdr = 0x4ad807;
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if (!addr) {
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ConsoleOutput("Tenco: pattern not found");
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return false;
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}
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HookParam hp;
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hp.address = addr + addr_offset;
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hp.index = 4;
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hp.offset=get_reg(regs::ecx);
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hp.type = NO_CONTEXT|DATA_INDIRECT;
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ConsoleOutput("INSERT Tenco");
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return NewHook(hp, "Tenco");
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}
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bool LWScript() {
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BYTE bytes[] = {
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0x33,0xdb,
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0x53,
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0x8d,0x87,XX4,
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0x50,
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0x55,
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0x57,
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0xe8
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};
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auto addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
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ConsoleOutput("LWScript %p", addr);
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if (addr == 0)return false;
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HookParam hp;
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hp.address = addr;
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hp.offset=get_reg(regs::edx);
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hp.type = USING_STRING;
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return NewHook(hp, "LWScript");
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}
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bool LWScript2() {
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BYTE bytes[] = {
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0x66,0xC1,0xE8,0x08,
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0x3C,0x81
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};
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auto addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
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ConsoleOutput("LWScript2 %p", addr);
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if (addr == 0)return false;
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addr = MemDbg::findEnclosingAlignedFunction(addr);
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if (addr == 0)return false;
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int off;
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if (*(BYTE*)(addr + 3) == 0x4C)get_stack(2);
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else off=get_reg(regs::ecx);
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HookParam hp;
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hp.address = addr;
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hp.offset = off;
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hp.type = CODEC_ANSI_BE;
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auto succ=NewHook(hp, "LWScript2");
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auto addrs=findxref_reverse(addr, addr - 0x10000,addr);
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for (auto addr : addrs) {
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addr = MemDbg::findEnclosingAlignedFunction(addr);
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if (addr == 0)continue;
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HookParam hp;
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hp.address = addr;
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hp.offset=get_stack(5);
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hp.type = CODEC_ANSI_BE;
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ConsoleOutput("LWScript2_xref %p", addr);
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succ|=NewHook(hp, "LWScript2_xref");
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}
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return succ;
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}
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bool Tenco::attach_function() {
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bool b3= InsertTencoHook();
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bool b1=LWScript();
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bool b2=LWScript2();
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return b1||b2||b3;
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}
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