mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-23 13:55:36 +08:00
529 lines
17 KiB
C++
529 lines
17 KiB
C++
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#include "MinHook.h"
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namespace
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{
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SearchParam sp;
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constexpr int MAX_STRING_SIZE = 500, CACHE_SIZE = 749993, GOOD_PAGE = -1;
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struct HookRecord
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{
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uint64_t address = 0;
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uint64_t em_addr = 0;
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int argidx = 0;
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intptr_t padding = 0;
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int offset = 0;
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JITTYPE jittype;
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char text[MAX_STRING_SIZE] = {};
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};
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std::unique_ptr<HookRecord[]> records;
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long recordsAvailable;
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uint64_t signatureCache[CACHE_SIZE] = {};
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long sumCache[CACHE_SIZE] = {};
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uintptr_t pageCache[CACHE_SIZE] = {};
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#ifndef _WIN64
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BYTE trampoline[] =
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{
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0x9c, // pushfd
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0x60, // pushad
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0x68, 0, 0, 0, 0, // push @addr ; after this a total of 0x28 bytes are pushed
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0x8d, 0x44, 0x24, 0x28, // lea eax,[esp+0x28]
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0x50, // push eax ; stack
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0xbb, 0, 0, 0, 0, // mov ebx,@Send
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0xff, 0xd3, // call ebx
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0x83, 0xc4, 0x08, // add esp, 0x8 ; doesn't matter which register
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0x61, // popad
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0x9d, // popfd
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0x68, 0, 0, 0, 0, // push @original
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0xc3 // ret ; basically absolute jmp to @original
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};
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constexpr int addr_offset = 3, send_offset = 13, original_offset = 25, registers = 8;
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#else
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BYTE trampoline[] = {
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0x9c, // push rflags
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0x50, // push rax
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0x53, // push rbx
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0x51, // push rcx
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0x52, // push rdx
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0x54, // push rsp
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0x55, // push rbp
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0x56, // push rsi
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0x57, // push rdi
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0x41, 0x50, // push r8
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0x41, 0x51, // push r9
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0x41, 0x52, // push r10
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0x41, 0x53, // push r11
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0x41, 0x54, // push r12
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0x41, 0x55, // push r13
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0x41, 0x56, // push r14
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0x41, 0x57, // push r15
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// https://docs.microsoft.com/en-us/cpp/build/x64-calling-convention
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// https://stackoverflow.com/questions/43358429/save-value-of-xmm-registers
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0x48, 0x83, 0xec, 0x20, // sub rsp,0x20
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0xf3, 0x0f, 0x7f, 0x24, 0x24, // movdqu [rsp],xmm4
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0xf3, 0x0f, 0x7f, 0x6c, 0x24, 0x10, // movdqu [rsp+0x10],xmm5
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0x48, 0x8d, 0x8c, 0x24, 0xa8, 0x00, 0x00, 0x00, // lea rcx,[rsp+0xa8]
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0x48, 0xba, 0, 0, 0, 0, 0, 0, 0, 0, // mov rcx,@addr
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0x48, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, // mov rax,@Send
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0x48, 0x89, 0xe3, // mov rbx,rsp
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0x48, 0x83, 0xe4, 0xf0, // and rsp,0xfffffffffffffff0 ; align stack
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0xff, 0xd0, // call rax
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0x48, 0x89, 0xdc, // mov rsp,rbx
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0xf3, 0x0f, 0x6f, 0x6c, 0x24, 0x10, // movdqu xmm5,XMMWORD PTR[rsp + 0x10]
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0xf3, 0x0f, 0x6f, 0x24, 0x24, // movdqu xmm4,XMMWORD PTR[rsp]
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0x48, 0x83, 0xc4, 0x20, // add rsp,0x20
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0x41, 0x5f, // pop r15
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0x41, 0x5e, // pop r14
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0x41, 0x5d, // pop r13
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0x41, 0x5c, // pop r12
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0x41, 0x5b, // pop r11
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0x41, 0x5a, // pop r10
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0x41, 0x59, // pop r9
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0x41, 0x58, // pop r8
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0x5f, // pop rdi
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0x5e, // pop rsi
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0x5d, // pop rbp
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0x5c, // pop rsp
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0x5a, // pop rdx
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0x59, // pop rcx
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0x5b, // pop rbx
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0x58, // pop rax
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0x9d, // pop rflags
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0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp qword ptr [rip]
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0, 0, 0, 0, 0, 0, 0, 0 // @original
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};
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constexpr int addr_offset = 50, send_offset = 60, original_offset = 126, registers = 16;
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#endif
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}
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bool IsBadReadPtr(void *data)
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{
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if (data > records.get() && data < records.get() + sp.maxRecords)
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return true;
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uintptr_t BAD_PAGE = (uintptr_t)data >> 12;
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auto &cacheEntry = pageCache[BAD_PAGE % CACHE_SIZE];
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if (cacheEntry == BAD_PAGE)
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return true;
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if (cacheEntry == GOOD_PAGE)
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return false;
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__try
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{
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volatile char _ = *(char *)data;
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cacheEntry = GOOD_PAGE;
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}
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__except (EXCEPTION_EXECUTE_HANDLER)
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{
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if (GetExceptionCode() == EXCEPTION_GUARD_PAGE)
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{
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MEMORY_BASIC_INFORMATION info;
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VirtualQuery(data, &info, sizeof(info));
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VirtualProtect(data, 1, info.Protect | PAGE_GUARD, DUMMY);
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}
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cacheEntry = BAD_PAGE;
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}
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return cacheEntry == BAD_PAGE;
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}
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void DoSend(int i, uintptr_t address, char *str, intptr_t padding, JITTYPE jittype = JITTYPE::PC, uint64_t em_addr = 0)
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{
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str += padding;
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if (IsBadReadPtr(str) || IsBadReadPtr(str + MAX_STRING_SIZE))
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return;
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__try
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{
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int length = 0, sum = 0;
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for (; (str[length] || str[length + 1]) && length < MAX_STRING_SIZE; length += 2)
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sum += *(uint16_t *)(str + length);
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if (length > STRING && length < MAX_STRING_SIZE - 1)
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{
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// many duplicate results with same address, offset, and third/fourth character will be found: filter them out
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uint64_t signature = ((uint64_t)i << 56) | ((uint64_t)(str[2] + str[3]) << 48) | address;
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if (signatureCache[signature % CACHE_SIZE] == signature)
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return;
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signatureCache[signature % CACHE_SIZE] = signature;
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// if there are huge amount of strings that are the same, it's probably garbage: filter them out
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// can't store all the strings, so use sum as heuristic instead
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if (_InterlockedIncrement(sumCache + (sum % CACHE_SIZE)) > 25)
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return;
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long n = sp.maxRecords - _InterlockedDecrement(&recordsAvailable);
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if (n < sp.maxRecords)
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{
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records[n].jittype = jittype;
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records[n].padding = padding;
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if (jittype == JITTYPE::PC)
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{
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records[n].address = address;
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records[n].offset = i * sizeof(char *);
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}
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else
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{
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records[n].em_addr = em_addr;
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records[n].argidx = i;
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}
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for (int j = 0; j < length; ++j)
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records[n].text[j] = str[j];
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records[n].text[length] = 0;
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}
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if (n == sp.maxRecords)
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{
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spDefault.maxRecords = sp.maxRecords * 2;
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ConsoleOutput(OUT_OF_RECORDS_RETRY);
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}
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}
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}
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__except (EXCEPTION_EXECUTE_HANDLER)
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{
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}
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}
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void Send(char **stack, uintptr_t address)
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{
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// it is unsafe to call ANY external functions from this, as they may have been hooked (if called the hook would call this function making an infinite loop)
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// the exceptions are compiler intrinsics like _InterlockedDecrement
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if (recordsAvailable <= 0)
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return;
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for (int i = -registers; i < 10; ++i)
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{
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DoSend(i, address, stack[i], 0);
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if (sp.padding)
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DoSend(i, address, stack[i], sp.padding);
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}
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}
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void SafeSendJitVeh(hook_stack *stack, uintptr_t address, uint64_t em_addr, JITTYPE jittype, intptr_t padding)
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{
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__try
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{
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for (int i = 0; i < 16; i++)
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{
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char *str = 0;
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switch (jittype)
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{
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#ifdef _WIN64
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case JITTYPE::YUZU:
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str = (char *)YUZU::emu_arg(stack, em_addr)[i];
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break;
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case JITTYPE::VITA3K:
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str = (char *)VITA3K::emu_arg(stack)[i];
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break;
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case JITTYPE::RPCS3:
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str = (char *)RPCS3::emu_arg(stack)[i];
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break;
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#endif
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case JITTYPE::PPSSPP:
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str = (char *)PPSSPP::emu_arg(stack)[i];
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break;
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default:
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return;
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}
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DoSend(i, address, str, 0, jittype, em_addr);
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if (padding)
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DoSend(i, address, str, padding, jittype, em_addr);
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}
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}
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__except (EXCEPTION_EXECUTE_HANDLER)
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{
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}
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}
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std::unordered_map<uintptr_t, uint64_t> addresscalledtime;
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bool SendJitVeh(PCONTEXT context, uintptr_t address, uint64_t em_addr, JITTYPE jittype, intptr_t padding)
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{
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if (safeautoleaveveh)
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return true;
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if (recordsAvailable <= 0)
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return false;
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if (addresscalledtime.find(address) == addresscalledtime.end())
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addresscalledtime[address] = 0;
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auto tm = GetTickCount64();
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if (tm - addresscalledtime[address] < 100)
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return false;
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addresscalledtime[address] = tm;
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auto stack = std::make_unique<hook_stack>();
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context_get(stack.get(), context);
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SafeSendJitVeh(stack.get(), address, em_addr, jittype, padding);
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return true;
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}
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std::vector<uintptr_t> GetFunctions(uintptr_t module)
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{
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if (!module)
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return {};
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IMAGE_DOS_HEADER *dosHeader = (IMAGE_DOS_HEADER *)module;
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if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE)
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return {};
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IMAGE_NT_HEADERS *ntHeader = (IMAGE_NT_HEADERS *)(module + dosHeader->e_lfanew);
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if (ntHeader->Signature != IMAGE_NT_SIGNATURE)
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return {};
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DWORD exportAddress = ntHeader->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
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if (!exportAddress)
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return {};
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IMAGE_EXPORT_DIRECTORY *exportDirectory = (IMAGE_EXPORT_DIRECTORY *)(module + exportAddress);
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std::vector<uintptr_t> functions;
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for (int i = 0; i < exportDirectory->NumberOfNames; ++i)
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// char* funcName = (char*)(module + *(DWORD*)(module + exportDirectory->AddressOfNames + i * sizeof(DWORD)));
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functions.push_back(module + *(DWORD *)(module + exportDirectory->AddressOfFunctions +
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sizeof(DWORD) * *(WORD *)(module + exportDirectory->AddressOfNameOrdinals + i * sizeof(WORD))));
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return functions;
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}
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void mergevector(std::vector<uintptr_t> &v1, std::vector<uintptr_t> &v2)
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{
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for (auto addr : v2)
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{
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auto it = std::find(v1.begin(), v1.end(), addr);
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if (it == v1.end())
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{
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v1.push_back(addr);
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}
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}
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}
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void SearchForHooks_Return()
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{
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ConsoleOutput(HOOK_SEARCH_FINISHED, sp.maxRecords - recordsAvailable);
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for (int i = 0, results = 0; i < sp.maxRecords; ++i)
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{
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HookParam hp;
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hp.codepage = sp.codepage;
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hp.jittype = records[i].jittype;
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hp.padding = records[i].padding;
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if (records[i].jittype == JITTYPE::PC)
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{
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if (!records[i].address)
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continue;
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hp.offset = records[i].offset;
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hp.type = CODEC_UTF16 | USING_STRING;
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hp.address = records[i].address;
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}
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else
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{
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if (!records[i].em_addr)
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continue;
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hp.emu_addr = records[i].em_addr;
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hp.type = CODEC_UTF16 | USING_STRING | BREAK_POINT | NO_CONTEXT;
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hp.argidx = records[i].argidx;
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}
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NotifyHookFound(hp, (wchar_t *)records[i].text);
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if (++results % 100'000 == 0)
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ConsoleOutput(ResultsNum, results);
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}
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records.reset();
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for (int i = 0; i < CACHE_SIZE; ++i)
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signatureCache[i] = sumCache[i] = 0;
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}
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void initrecords()
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{
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do
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try
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{
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records = std::make_unique<HookRecord[]>(recordsAvailable = sp.maxRecords);
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}
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catch (std::bad_alloc)
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{
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ConsoleOutput(SearchForHooks_ERROR, sp.maxRecords /= 2);
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}
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while (!records && sp.maxRecords);
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}
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void SearchForHooks(SearchParam spUser)
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{
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std::thread([=]
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{
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static std::mutex m;
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std::scoped_lock lock(m);
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*(void**)(trampoline + send_offset) = Send;
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ConsoleOutput(HOOK_SEARCH_INITIALIZING, 0.);
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sp = spUser.length == 0 ? spDefault : spUser;
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sp.codepage=spUser.codepage;
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initrecords();
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std::vector<uintptr_t> addresses;
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if( sp.jittype==JITTYPE::PC)
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{
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if (*sp.boundaryModule) {
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auto [minaddr,maxaddr]=Util::QueryModuleLimits(GetModuleHandleW(sp.boundaryModule));
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if(sp.address_method==0){
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sp.minAddress=min(max(minaddr,sp.minAddress),maxaddr);
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sp.maxAddress=max(min(maxaddr,sp.maxAddress),minaddr);
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}
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else if(sp.address_method==1){
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auto maxoff=maxaddr-minaddr;
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sp.minAddress=minaddr+min(sp.minAddress,maxoff);
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sp.maxAddress=minaddr+min(sp.maxAddress,maxoff);
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}
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//std::tie(sp.minAddress, sp.maxAddress) = Util::QueryModuleLimits(GetModuleHandleW(sp.boundaryModule));
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}
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if (*sp.exportModule) addresses = GetFunctions((uintptr_t)GetModuleHandleW(sp.exportModule));
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if (*sp.boundaryModule){
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auto _addresses = GetFunctions((uintptr_t)GetModuleHandleW(sp.boundaryModule));
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mergevector(addresses,_addresses);
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}
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std::vector<uintptr_t> addresses1;
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if(sp.search_method==0){
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for (auto& addr : addresses1 = Util::SearchMemory(sp.pattern, sp.length, PAGE_EXECUTE, sp.minAddress, sp.maxAddress))
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addr += sp.offset;
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}
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else if(sp.search_method==1){
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auto checklength=3;
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auto checker=[checklength](DWORD k){
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if (k == 0xcccccccc
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|| k == 0x90909090
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|| k == 0xccccccc3
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|| k == 0x909090c3
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)
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return true;
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DWORD t = k & 0xff0000ff;
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if (t == 0xcc0000c2 || t == 0x900000c2)
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return true;
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if(checklength==4)return false;
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k >>= 8;
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if (k == 0xccccc3 || k == 0x9090c3)
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return true;
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if(checklength==3)return false;
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// t = k & 0xff;
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// if (t == 0xc2)
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// return true;
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k >>= 8;
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if (k == 0xccc3 || k == 0x90c3)
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return true;
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if(checklength==2)return false;
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k >>= 8;
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if (k == 0xc3)
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return true;
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return false;
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};
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for(uintptr_t addr=sp.minAddress& ~0xf;addr<sp.maxAddress;addr+=0x10){
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if(IsBadReadPtr((void*)(addr-0x10),0x110)){
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addr+=0x100-0x10;
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continue;
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}
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auto need=checker(*(DWORD *)(addr-4));
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if (need)
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addresses1.push_back(addr);
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}
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}
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else if(sp.search_method==2){
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for(uintptr_t addr=sp.minAddress;addr<sp.maxAddress;addr++){
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if(IsBadReadPtr((void*)addr,0x100)){
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addr+=0x100-1;
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continue;
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}
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if(((*(BYTE*)addr)==0xe8)){
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auto off=*(DWORD*)(addr+1);
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auto funcaddr=addr+5+off;
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if(sp.minAddress<funcaddr && sp.maxAddress>funcaddr){
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auto it = std::find(addresses1.begin(), addresses1.end(), funcaddr);
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addresses1.push_back(funcaddr);
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}
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}
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}
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}
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mergevector(addresses,addresses1);
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auto limits = Util::QueryModuleLimits(GetModuleHandleW(LUNA_HOOK_DLL));
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addresses.erase(std::remove_if(addresses.begin(), addresses.end(), [&](auto addr) { return addr > limits.first && addr < limits.second; }), addresses.end());
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auto trampolines = (decltype(trampoline)*)VirtualAlloc(NULL, sizeof(trampoline) * addresses.size(), MEM_COMMIT, PAGE_READWRITE);
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VirtualProtect(trampolines, addresses.size() * sizeof(trampoline), PAGE_EXECUTE_READWRITE, DUMMY);
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std::vector<uintptr_t>mherroridx;
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for (int i = 0; i < addresses.size(); ++i)
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{
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void* original;
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//避免MH_RemoveHook时移除原本已有hook
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if(MH_CreateHook((void*)addresses[i], trampolines[i], &original)!=MH_OK){
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mherroridx.push_back(i);
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}
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MH_QueueEnableHook((void*)addresses[i]);
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memcpy(trampolines[i], trampoline, sizeof(trampoline));
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*(uintptr_t*)(trampolines[i] + addr_offset) = addresses[i];
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*(void**)(trampolines[i] + original_offset) = original;
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if (i % 2500 == 0) ConsoleOutput(HOOK_SEARCH_INITIALIZING, 1 + 98. * i / addresses.size());
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}
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//避免MH_RemoveHook时移除原本已有hook
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for(int i=0;i<mherroridx.size();i++){
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auto reverseidx=mherroridx[mherroridx.size()-1-i];
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addresses.erase(addresses.begin()+reverseidx);
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}
|
|
|
|
ConsoleOutput(HOOK_SEARCH_INITIALIZED, addresses.size());
|
|
MH_ApplyQueued();
|
|
ConsoleOutput(HOOK_SEARCH_STARTING);
|
|
ConsoleOutput(MAKE_GAME_PROCESS_TEXT, sp.searchTime / 1000);
|
|
Sleep(sp.searchTime);
|
|
for (auto addr : addresses) MH_QueueDisableHook((void*)addr);
|
|
MH_ApplyQueued();
|
|
Sleep(1000);
|
|
for (auto addr : addresses) MH_RemoveHook((void*)addr);
|
|
VirtualFree(trampolines, 0, MEM_RELEASE);
|
|
SearchForHooks_Return();
|
|
}
|
|
else
|
|
{
|
|
safeautoleaveveh=false;
|
|
int i=0;
|
|
std::vector<uint64_t>successaddr;
|
|
uintptr_t minemaddr=-1,maxemaddr=0;
|
|
|
|
ConsoleOutput(HOOK_SEARCH_INITIALIZED, jitaddr2emuaddr.size());
|
|
|
|
for(auto addr:jitaddr2emuaddr){
|
|
minemaddr=min(minemaddr,addr.second.second);
|
|
maxemaddr=max(maxemaddr,addr.second.second);
|
|
}
|
|
ConsoleOutput("%p %p",minemaddr,maxemaddr);
|
|
ConsoleOutput("%p %p",sp.minAddress,sp.maxAddress);
|
|
for(auto addr:jitaddr2emuaddr){
|
|
//ConsoleOutput("%llx => %p", addr.second.second ,addr.first);
|
|
if(addr.second.second>sp.maxAddress||addr.second.second<sp.minAddress)continue;
|
|
i+=1;
|
|
//addresses.push_back(addr.first);
|
|
if(add_veh_hook((void*)addr.first,std::bind(SendJitVeh,std::placeholders::_1,addr.first,addr.second.second,addr.second.first,sp.padding)))
|
|
successaddr.push_back(addr.first);
|
|
if (i % 2500 == 0) ConsoleOutput(HOOK_SEARCH_INITIALIZING, 1 + 98. * i / jitaddr2emuaddr.size());
|
|
}
|
|
ConsoleOutput(HOOK_SEARCH_INITIALIZED, i);
|
|
ConsoleOutput(MAKE_GAME_PROCESS_TEXT, sp.searchTime / 1000);
|
|
Sleep(sp.searchTime);
|
|
// for(auto addr:successaddr){
|
|
// remove_veh_hook((void*)addr);
|
|
// }
|
|
safeautoleaveveh=true;
|
|
SearchForHooks_Return();
|
|
} })
|
|
.detach();
|
|
}
|
|
|
|
void SearchForText(wchar_t *text, UINT codepage)
|
|
{
|
|
bool found = false;
|
|
char utf8Text[PATTERN_SIZE * 4] = {};
|
|
WideCharToMultiByte(CP_UTF8, 0, text, PATTERN_SIZE, utf8Text, PATTERN_SIZE * 4, nullptr, nullptr);
|
|
char codepageText[PATTERN_SIZE * 4] = {};
|
|
if (codepage != CP_UTF8)
|
|
WideCharToMultiByte(codepage, 0, text, PATTERN_SIZE, codepageText, PATTERN_SIZE * 4, nullptr, nullptr);
|
|
|
|
if (strlen(utf8Text) < 4 || ((codepage != CP_UTF8) && (strlen(codepageText) < 4)) || wcslen(text) < 4)
|
|
return ConsoleOutput(NOT_ENOUGH_TEXT);
|
|
ConsoleOutput(HOOK_SEARCH_STARTING);
|
|
auto GenerateHooks = [&](std::vector<uintptr_t> addresses, HookParamType type)
|
|
{
|
|
for (auto addr : addresses)
|
|
{
|
|
if (abs((long long)(utf8Text - addr)) < 20000)
|
|
continue; // don't add read code if text is on this thread's stack
|
|
found = true;
|
|
HookParam hp;
|
|
hp.type = DIRECT_READ | type;
|
|
hp.address = addr;
|
|
hp.codepage = codepage;
|
|
NewHook(hp, "Search");
|
|
}
|
|
};
|
|
GenerateHooks(Util::SearchMemory(utf8Text, strlen(utf8Text), PAGE_READWRITE), CODEC_UTF8);
|
|
if (codepage != CP_UTF8)
|
|
GenerateHooks(Util::SearchMemory(codepageText, strlen(codepageText), PAGE_READWRITE), USING_STRING);
|
|
GenerateHooks(Util::SearchMemory(text, wcslen(text) * sizeof(wchar_t), PAGE_READWRITE), CODEC_UTF16);
|
|
if (!found)
|
|
ConsoleOutput(COULD_NOT_FIND);
|
|
}
|