mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-27 15:54:03 +08:00
425 lines
15 KiB
C++
425 lines
15 KiB
C++
#include"Elf.h"
|
||
|
||
/**
|
||
* jichi 6/1/2014:
|
||
* Observations from 愛姉妹4
|
||
* - Scenario: arg1 + 4*5 is 0, arg1+0xc is address of the text
|
||
* - Character: arg1 + 4*10 is 0, arg1+0xc is text
|
||
*/
|
||
static inline size_t _elf_strlen(LPCSTR p) // limit search address which might be bad
|
||
{
|
||
//CC_ASSERT(p);
|
||
for (size_t i = 0; i < VNR_TEXT_CAPACITY; i++)
|
||
if (!*p++)
|
||
return i;
|
||
return 0; // when len >= VNR_TEXT_CAPACITY
|
||
}
|
||
|
||
static void SpecialHookElf(hook_stack* stack, HookParam *, uintptr_t *data, uintptr_t *split, size_t *len)
|
||
{
|
||
//DWORD arg1 = *(DWORD *)(esp_base + 0x4);
|
||
DWORD arg1 = stack->stack[1];
|
||
DWORD arg2_scene = arg1 + 4*5,
|
||
arg2_chara = arg1 + 4*10;
|
||
DWORD text; //= 0; // This variable will be killed
|
||
if (*(DWORD *)arg2_scene == 0) {
|
||
text = *(DWORD *)(arg2_scene + 4*3);
|
||
if (!text || ::IsBadReadPtr((LPCVOID)text, 1)) // Text from scenario could be bad when open backlog while the character is speaking
|
||
return;
|
||
*split = 1;
|
||
} else if (*(DWORD *)arg2_chara == 0) {
|
||
text = arg2_chara + 4*3;
|
||
*split = 2;
|
||
} else
|
||
return;
|
||
//if (text && text < MemDbg::UserMemoryStopAddress) {
|
||
*len = _elf_strlen((LPCSTR)text); // in case the text is bad but still readable
|
||
//*len = ::strlen((LPCSTR)text);
|
||
*data = text;
|
||
}
|
||
|
||
/**
|
||
* jichi 5/31/2014: elf's
|
||
* Type1: SEXヂ<58>ーチャー剛史 trial, reladdr = 0x2f0f0, 2 parameters
|
||
* Type2: 愛姉妹4, reladdr = 0x2f9b0, 3 parameters
|
||
*
|
||
* IDA: sub_42F9B0 proc near ; bp-based frame
|
||
* var_8 = dword ptr -8
|
||
* var_4 = byte ptr -4
|
||
* var_3 = word ptr -3
|
||
* arg_0 = dword ptr 8
|
||
* arg_4 = dword ptr 0Ch
|
||
* arg_8 = dword ptr 10h
|
||
*
|
||
* Call graph (Type2):
|
||
* 0x2f9b0 ; hook here
|
||
* > 0x666a0 ; called multiple time
|
||
* > TextOutA ; there are two TextOutA, the second is the right one
|
||
*
|
||
* Function starts (Type1), pattern offset: 0xc
|
||
* - 012ef0f0 /$ 55 push ebp ; jichi: hook
|
||
* - 012ef0f1 |. 8bec mov ebp,esp
|
||
* - 012ef0f3 |. 83ec 10 sub esp,0x10
|
||
* - 012ef0f6 |. 837d 0c 00 cmp dword ptr ss:[ebp+0xc],0x0
|
||
* - 012ef0fa |. 53 push ebx
|
||
* - 012ef0fb |. 56 push esi
|
||
* - 012ef0fc |. 75 0f jnz short stt_tria.012ef10d ; jicchi: pattern starts
|
||
* - 012ef0fe |. 8b45 08 mov eax,dword ptr ss:[ebp+0x8]
|
||
* - 012ef101 |. 8b48 04 mov ecx,dword ptr ds:[eax+0x4]
|
||
* - 012ef104 |. 8b91 90000000 mov edx,dword ptr ds:[ecx+0x90] ; jichi: pattern stops
|
||
* - 012ef10a |. 8955 0c mov dword ptr ss:[ebp+0xc],edx
|
||
* - 012ef10d |> 8b4d 08 mov ecx,dword ptr ss:[ebp+0x8]
|
||
* - 012ef110 |. 8b51 04 mov edx,dword ptr ds:[ecx+0x4]
|
||
* - 012ef113 |. 33c0 xor eax,eax
|
||
* - 012ef115 |. c645 f8 00 mov byte ptr ss:[ebp-0x8],0x0
|
||
* - 012ef119 |. 66:8945 f9 mov word ptr ss:[ebp-0x7],ax
|
||
* - 012ef11d |. 8b82 b0000000 mov eax,dword ptr ds:[edx+0xb0]
|
||
* - 012ef123 |. 8945 f4 mov dword ptr ss:[ebp-0xc],eax
|
||
* - 012ef126 |. 33db xor ebx,ebx
|
||
* - 012ef128 |> 8b4f 20 /mov ecx,dword ptr ds:[edi+0x20]
|
||
* - 012ef12b |. 83f9 10 |cmp ecx,0x10
|
||
*
|
||
* Function starts (Type2), pattern offset: 0x10
|
||
* - 0093f9b0 /$ 55 push ebp ; jichi: hook here
|
||
* - 0093f9b1 |. 8bec mov ebp,esp
|
||
* - 0093f9b3 |. 83ec 08 sub esp,0x8
|
||
* - 0093f9b6 |. 837d 10 00 cmp dword ptr ss:[ebp+0x10],0x0
|
||
* - 0093f9ba |. 53 push ebx
|
||
* - 0093f9bb |. 8b5d 0c mov ebx,dword ptr ss:[ebp+0xc]
|
||
* - 0093f9be |. 56 push esi
|
||
* - 0093f9bf |. 57 push edi
|
||
* - 0093f9c0 |. 75 0f jnz short silkys.0093f9d1 ; jichi: pattern starts
|
||
* - 0093f9c2 |. 8b45 08 mov eax,dword ptr ss:[ebp+0x8]
|
||
* - 0093f9c5 |. 8b48 04 mov ecx,dword ptr ds:[eax+0x4]
|
||
* - 0093f9c8 |. 8b91 90000000 mov edx,dword ptr ds:[ecx+0x90] ; jichi: pattern stops
|
||
* - 0093f9ce |. 8955 10 mov dword ptr ss:[ebp+0x10],edx
|
||
* - 0093f9d1 |> 33c0 xor eax,eax
|
||
* - 0093f9d3 |. c645 fc 00 mov byte ptr ss:[ebp-0x4],0x0
|
||
* - 0093f9d7 |. 66:8945 fd mov word ptr ss:[ebp-0x3],ax
|
||
* - 0093f9db |. 33ff xor edi,edi
|
||
* - 0093f9dd |> 8b53 20 /mov edx,dword ptr ds:[ebx+0x20]
|
||
* - 0093f9e0 |. 8d4b 0c |lea ecx,dword ptr ds:[ebx+0xc]
|
||
* - 0093f9e3 |. 83fa 10 |cmp edx,0x10
|
||
*/
|
||
bool InsertElfHook()
|
||
{
|
||
const BYTE bytes[] = {
|
||
//0x55, // 0093f9b0 /$ 55 push ebp ; jichi: hook here
|
||
//0x8b,0xec, // 0093f9b1 |. 8bec mov ebp,esp
|
||
//0x83,0xec, 0x08, // 0093f9b3 |. 83ec 08 sub esp,0x8
|
||
//0x83,0x7d, 0x10, 0x00, // 0093f9b6 |. 837d 10 00 cmp dword ptr ss:[ebp+0x10],0x0
|
||
//0x53, // 0093f9ba |. 53 push ebx
|
||
//0x8b,0x5d, 0x0c, // 0093f9bb |. 8b5d 0c mov ebx,dword ptr ss:[ebp+0xc]
|
||
//0x56, // 0093f9be |. 56 push esi
|
||
//0x57, // 0093f9bf |. 57 push edi
|
||
0x75, 0x0f, // 0093f9c0 |. 75 0f jnz short silkys.0093f9d1
|
||
0x8b,0x45, 0x08, // 0093f9c2 |. 8b45 08 mov eax,dword ptr ss:[ebp+0x8]
|
||
0x8b,0x48, 0x04, // 0093f9c5 |. 8b48 04 mov ecx,dword ptr ds:[eax+0x4]
|
||
0x8b,0x91, 0x90,0x00,0x00,0x00 // 0093f9c8 |. 8b91 90000000 mov edx,dword ptr ds:[ecx+0x90]
|
||
};
|
||
//enum { addr_offset = 0xc };
|
||
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
|
||
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
|
||
//GROWL_DWORD(addr);
|
||
//addr = 0x42f170; // 愛姉妹4 Trial
|
||
//reladdr = 0x2f9b0; // 愛姉妹4
|
||
//reladdr = 0x2f0f0; // SEXヂ<58>ーチャー剛史 trial
|
||
if (!addr) {
|
||
ConsoleOutput("Elf: pattern not found");
|
||
return false;
|
||
}
|
||
|
||
enum : BYTE { push_ebp = 0x55 };
|
||
for (int i = 0; i < 0x20; i++, addr--) // value of i is supposed to be 0xc or 0x10
|
||
if (*(BYTE *)addr == push_ebp) { // beginning of the function
|
||
|
||
HookParam hp;
|
||
hp.address = addr;
|
||
hp.text_fun = SpecialHookElf;
|
||
hp.type = USING_STRING|NO_CONTEXT; // = 9
|
||
|
||
ConsoleOutput("INSERT Elf");
|
||
|
||
return NewHook(hp, "Elf");
|
||
}
|
||
ConsoleOutput("Elf: function not found");
|
||
return false;
|
||
}
|
||
namespace{
|
||
bool __(){
|
||
const BYTE bytes[] = {
|
||
//姫騎士オリヴィア ～へ、変態、この変態男!少しは恥を知りなさい!～
|
||
//女系家族III～秘密HIMITSU卑蜜～
|
||
//ベロちゅー！～コスプレメイドをエロメロしちゃう魔法の舌戯～
|
||
0x0F,0xB7,XX,XX4, //v11 == 30081 // movzx edx, ds:word_4C285C //word_4C285C dw 7581h
|
||
};
|
||
|
||
for (auto addr : Util::SearchMemory(bytes, sizeof(bytes), PAGE_EXECUTE, processStartAddress, processStopAddress)) {
|
||
BYTE reg=*(BYTE*)(addr+2);
|
||
if((reg!=0x05)&&(reg!=0x0d)&&(reg!=0x1d)&&(reg!=0x15))continue;
|
||
int word_4C285C_addr=*(int*)(addr+3);
|
||
if(word_4C285C_addr<processStartAddress || word_4C285C_addr>processStopAddress)continue;
|
||
int word_4C285C=*(int*)word_4C285C_addr;
|
||
if((word_4C285C)!=0x7581)continue;
|
||
addr = findfuncstart(addr, 0x200);
|
||
if (addr == 0)continue;
|
||
HookParam hp;
|
||
hp.address = addr;
|
||
hp.offset=get_stack(1);
|
||
hp.type = USING_STRING;
|
||
|
||
return NewHook(hp, "aiwin6");
|
||
}
|
||
|
||
return false;
|
||
}
|
||
}
|
||
#include"embed_util.h"
|
||
namespace { // unnamed
|
||
namespace ScenarioHook {
|
||
namespace Private {
|
||
|
||
struct TextArgument
|
||
{
|
||
DWORD _unknown1[5];
|
||
|
||
DWORD scenarioFlag; // +4*5, 0 if it is scenario
|
||
DWORD _unknown2[2];
|
||
LPCSTR scenarioText; // +4*5+4*3, could be bad address though
|
||
DWORD _unknown3;
|
||
|
||
DWORD nameFlag; // +4*10, 0 if it is name
|
||
DWORD _unknown4[2];
|
||
char nameText[1]; // +4*10+4*3, could be bad address though
|
||
};
|
||
|
||
std::string data_;
|
||
TextArgument *scenarioArg_,
|
||
*nameArg_;
|
||
LPCSTR scenarioText_;
|
||
|
||
enum { MaxNameSize = 100 };
|
||
char nameText_[MaxNameSize + 1];
|
||
|
||
bool hookBefore(hook_stack*s,void* data, size_t* len,uintptr_t*role)
|
||
{
|
||
auto arg = (TextArgument *)s->stack[0]; // arg1 on the top of the stack
|
||
|
||
// Scenario
|
||
if (arg->scenarioFlag == 0) {
|
||
* role = Engine::ScenarioRole ;
|
||
// Text from scenario could be bad when open backlog while the character is speaking
|
||
auto text = arg->scenarioText;
|
||
if (!Engine::isAddressReadable(text))
|
||
return 0;
|
||
return write_string_overwrite(data,len,text);
|
||
// data_ = q->dispatchTextASTD(text, role, sig);
|
||
// scenarioArg_ = arg;
|
||
// scenarioText_ = arg->scenarioText;
|
||
// arg->scenarioText = (LPCSTR)data_.c_str();
|
||
} else if (arg->nameFlag == 0) {
|
||
* role = Engine::NameRole;
|
||
auto text = arg->nameText;
|
||
return write_string_overwrite(data,len,text);
|
||
// ::memcpy(text, newData.constData(), qMin(oldData.size(), newData.size()));
|
||
//int left = oldData.size() - newData.size();
|
||
//if (left > 0)
|
||
// ::memset(text + oldData.size() - left, 0, left);
|
||
}
|
||
return 0;
|
||
}
|
||
void hookafter1(hook_stack*s,void* data1, size_t len){
|
||
auto newData=std::string((char*)data1,len);
|
||
auto arg = (TextArgument *)s->stack[0]; // arg1 on the top of the stack
|
||
|
||
// Scenario
|
||
if (arg->scenarioFlag == 0) {
|
||
|
||
auto text = arg->scenarioText;
|
||
if (!Engine::isAddressReadable(text))
|
||
return ;
|
||
data_ = newData;
|
||
scenarioArg_ = arg;
|
||
scenarioText_ = arg->scenarioText;
|
||
arg->scenarioText = (LPCSTR)data_.c_str();
|
||
} else if (arg->nameFlag == 0) {
|
||
|
||
auto text = arg->nameText;
|
||
std::string oldData=text;
|
||
::memcpy(text, newData.c_str(), min(oldData.size(), newData.size()));
|
||
int left = oldData.size() - newData.size();
|
||
if (left > 0)
|
||
::memset(text + oldData.size() - left, 0, left);
|
||
}
|
||
}
|
||
bool hookAfter(hook_stack*s,void* data, size_t* len,uintptr_t*role)
|
||
{
|
||
if (scenarioArg_) {
|
||
scenarioArg_->scenarioText = scenarioText_;
|
||
scenarioArg_ = nullptr;
|
||
}
|
||
if (nameArg_) {
|
||
::strcpy(nameArg_->nameText, nameText_);
|
||
nameArg_ = nullptr;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
} // namespace Private
|
||
|
||
/**
|
||
* jichi 5/31/2014: elf's
|
||
* Type1: SEXティーチャー剛史 trial, reladdr = 0x2f0f0, 2 parameters
|
||
* Type2: 愛姉妹4, reladdr = 0x2f9b0, 3 parameters
|
||
*
|
||
* The hooked function is the caller of the caller of TextOutA.
|
||
*/
|
||
bool attach(ULONG startAddress, ULONG stopAddress)
|
||
{
|
||
const uint8_t bytes[] = {
|
||
//0x55, // 0093f9b0 /$ 55 push ebp ; jichi: hook here
|
||
//0x8b,0xec, // 0093f9b1 |. 8bec mov ebp,esp
|
||
//0x83,0xec, 0x08, // 0093f9b3 |. 83ec 08 sub esp,0x8
|
||
//0x83,0x7d, 0x10, 0x00, // 0093f9b6 |. 837d 10 00 cmp dword ptr ss:[ebp+0x10],0x0
|
||
//0x53, // 0093f9ba |. 53 push ebx
|
||
//0x8b,0x5d, 0x0c, // 0093f9bb |. 8b5d 0c mov ebx,dword ptr ss:[ebp+0xc]
|
||
//0x56, // 0093f9be |. 56 push esi
|
||
//0x57, // 0093f9bf |. 57 push edi
|
||
0x75, 0x0f, // 0093f9c0 |. 75 0f jnz short silkys.0093f9d1
|
||
0x8b,0x45, 0x08, // 0093f9c2 |. 8b45 08 mov eax,dword ptr ss:[ebp+0x8]
|
||
0x8b,0x48, 0x04, // 0093f9c5 |. 8b48 04 mov ecx,dword ptr ds:[eax+0x4]
|
||
0x8b,0x91, 0x90,0x00,0x00,0x00 // 0093f9c8 |. 8b91 90000000 mov edx,dword ptr ds:[ecx+0x90]
|
||
};
|
||
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), startAddress, stopAddress);
|
||
if (!addr)
|
||
return false;
|
||
addr = MemDbg::findEnclosingAlignedFunction(addr);
|
||
if (!addr)
|
||
return false;
|
||
int count = 0;
|
||
auto fun = [&count](ULONG addr) -> bool {
|
||
bool succ=false;
|
||
HookParam hp;
|
||
hp.address=addr;
|
||
hp.hook_before=Private::hookBefore;
|
||
hp.hook_after=Private::hookafter1;
|
||
hp.type=USING_STRING|EMBED_ABLE|EMBED_DYNA_SJIS;
|
||
hp.hook_font=F_TextOutA;
|
||
succ|=NewHook(hp,"EmbedElf");
|
||
hp.address=addr+5;
|
||
hp.hook_before=Private::hookAfter;
|
||
succ|=NewHook(hp,"EmbedElf");
|
||
count+=1;
|
||
return succ; // replace all functions
|
||
};
|
||
MemDbg::iterNearCallAddress(fun, addr, startAddress, stopAddress);
|
||
return count;
|
||
|
||
//lastCaller = MemDbg::findEnclosingAlignedFunction(lastCaller);
|
||
//Private::attached_ = false;
|
||
//return winhook::hook_before(lastCaller, [=](winhook::hook_stack *s) -> bool {
|
||
// if (Private::attached_)
|
||
// return true;
|
||
// Private::attached_ = true;
|
||
// if (ULONG addr = MemDbg::findEnclosingAlignedFunction(s->stack[0])) {
|
||
// DOUT("dynamic pattern found");
|
||
// Private::oldHookFun = (Private::hook_fun_t)winhook::replace_fun(addr, (ULONG)Private::newHookFun);
|
||
// }
|
||
// return true;
|
||
//});
|
||
}
|
||
|
||
} // namespace ScenarioHook
|
||
} // unnamed namespace
|
||
|
||
bool Elf::attach_function() {
|
||
|
||
auto _1= InsertElfHook()||__();
|
||
return ScenarioHook::attach(processStartAddress,processStopAddress)||_1;
|
||
}
|
||
|
||
bool isshiftjisX(WORD w){
|
||
return (((BYTE)(w))<=0xfc)&& (((BYTE)(w))>=0x80);
|
||
}
|
||
void SpecialHookElf2(hook_stack* stack, HookParam *, uintptr_t *data, uintptr_t *split, size_t *len)
|
||
{
|
||
static DWORD lasttext;
|
||
DWORD eax = stack->eax;
|
||
DWORD edx = stack->edx;
|
||
|
||
*data = *(WORD*)(eax+edx);
|
||
if(isshiftjisX(*data)==false){
|
||
*len=0;
|
||
return;
|
||
}
|
||
*len = 2;
|
||
*split=stack->stack[1];
|
||
}
|
||
bool Elf2attach_function() {
|
||
//这个有好多乱码
|
||
//[エルフ]あしたの雪之丞 DVD Special Edition
|
||
const uint8_t bytes[] = {
|
||
0x53,
|
||
0x8a,0x1c,0x02,
|
||
0x8b,0x54,0x24,0x08,
|
||
0x03,0xc2
|
||
};
|
||
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
|
||
if (!addr)
|
||
return false;
|
||
HookParam hp;
|
||
hp.address=addr+1;
|
||
hp.text_fun = SpecialHookElf2;
|
||
hp.type=NO_CONTEXT;
|
||
|
||
return NewHook(hp,"Elf");
|
||
}
|
||
bool elf2(){
|
||
//[エルフ]あしたの雪之丞 DVD Special Edition
|
||
//勝 あしたの雪之丞２
|
||
const uint8_t bytes[] = {
|
||
0x66,0x8b,0x8e,XX4,
|
||
0x66,0x8b,0x96,XX4,
|
||
0x66,0x01,0x8e,XX4,
|
||
0x66,0x89,0x96,XX4,
|
||
0x8b,0x06,
|
||
0x6a,0x00,
|
||
0x8b,0xce,
|
||
0xff,0x50,0x08,
|
||
0x84,0xc0
|
||
};
|
||
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
|
||
if (!addr)
|
||
return false;
|
||
HookParam hp;
|
||
hp.address=addr+sizeof(bytes);
|
||
hp.type=NO_CONTEXT|USING_STRING;
|
||
hp.offset=get_reg(regs::ebx);
|
||
|
||
return NewHook(hp,"Elf");
|
||
}
|
||
bool Elf2::attach_function(){
|
||
return elf2()||Elf2attach_function();
|
||
}
|
||
|
||
|
||
bool ElfFunClubFinal::attach_function(){
|
||
//mov reg,ds:TextOutA
|
||
bool succ=false;
|
||
for(auto addr: findiatcallormov_all((DWORD)TextOutA,processStartAddress,processStartAddress,processStopAddress,PAGE_EXECUTE,XX)){
|
||
BYTE s[]={XX,0xCC,0xCC,0xCC};
|
||
addr=reverseFindBytes(s,4,addr-0x100,addr);
|
||
if(addr==0)continue;
|
||
HookParam hp;
|
||
hp.address=addr+4;
|
||
hp.type=CODEC_ANSI_BE|USING_CHAR;
|
||
hp.text_fun=[](hook_stack* stack, HookParam *hp, uintptr_t* data, uintptr_t* split, size_t* len){
|
||
*data=(WORD)stack->stack[3];
|
||
*len=2;
|
||
*split=stack->stack[2]>8;
|
||
};
|
||
succ|= NewHook(hp,"ElfFunClubFinal");
|
||
}
|
||
return succ;
|
||
|
||
} |