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Copy pathMemory_WIN32.cpp
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235 lines (193 loc) · 5.37 KB
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#include "hacklib/Memory.h"
#include "hacklib/Logging.h"
#include <Windows.h>
#include <stdexcept>
static DWORD ToWindowsProt(hl::Protection protection)
{
DWORD windowsProt = 0;
if (protection & hl::PROTECTION_GUARD)
{
protection &= ~hl::PROTECTION_GUARD;
windowsProt |= PAGE_GUARD;
}
switch (protection)
{
case hl::PROTECTION_NOACCESS:
windowsProt |= PAGE_NOACCESS;
break;
case hl::PROTECTION_READ:
windowsProt |= PAGE_READONLY;
break;
case hl::PROTECTION_READ_WRITE:
windowsProt |= PAGE_READWRITE;
break;
case hl::PROTECTION_READ_EXECUTE:
windowsProt |= PAGE_EXECUTE_READ;
break;
case hl::PROTECTION_READ_WRITE_EXECUTE:
windowsProt |= PAGE_EXECUTE_READWRITE;
break;
default:
throw std::runtime_error("protection not supported");
}
return windowsProt;
}
static hl::Protection FromWindowsProt(DWORD windowsProt)
{
hl::Protection protection = hl::PROTECTION_NOACCESS;
if (windowsProt & PAGE_GUARD)
{
protection |= hl::PROTECTION_GUARD;
}
// Strip modifiers.
windowsProt &= ~(PAGE_GUARD | PAGE_NOCACHE | PAGE_WRITECOMBINE);
switch (windowsProt)
{
case PAGE_NOACCESS:
break;
case PAGE_READONLY:
protection |= hl::PROTECTION_READ;
break;
case PAGE_READWRITE:
case PAGE_WRITECOPY:
protection |= hl::PROTECTION_READ_WRITE;
break;
case PAGE_EXECUTE:
protection |= hl::PROTECTION_EXECUTE;
break;
case PAGE_EXECUTE_READ:
protection |= hl::PROTECTION_READ_EXECUTE;
break;
case PAGE_EXECUTE_READWRITE:
case PAGE_EXECUTE_WRITECOPY:
protection |= hl::PROTECTION_READ_WRITE_EXECUTE;
break;
default:
throw std::runtime_error("unknown windows protection");
}
return protection;
}
uintptr_t hl::GetPageSize()
{
static uintptr_t pageSize = 0;
if (!pageSize)
{
SYSTEM_INFO sys_info;
GetSystemInfo(&sys_info);
pageSize = (uintptr_t)sys_info.dwPageSize;
}
return pageSize;
}
void* hl::PageAlloc(size_t n, hl::Protection protection)
{
return VirtualAlloc(NULL, n, MEM_RESERVE | MEM_COMMIT, ToWindowsProt(protection));
}
void hl::PageFree(void* p, size_t n)
{
HL_APICHECK(VirtualFree(p, 0, MEM_RELEASE));
}
void hl::PageProtect(const void* p, size_t n, hl::Protection protection)
{
DWORD dwOldProt;
// const_cast: The memory contents will remain unchanged, so this is fine.
HL_APICHECK(VirtualProtect(const_cast<LPVOID>(p), n, ToWindowsProt(protection), &dwOldProt));
}
void* hl::PageReserve(size_t n)
{
return VirtualAlloc(NULL, n, MEM_RESERVE, PAGE_NOACCESS);
}
void hl::PageCommit(void* p, size_t n, hl::Protection protection)
{
HL_APICHECK(VirtualAlloc(p, n, MEM_COMMIT, ToWindowsProt(protection)));
}
void hl::FlushICache(void* p, size_t n)
{
HL_APICHECK(FlushInstructionCache(GetCurrentProcess(), p, n));
}
hl::ModuleHandle hl::GetModuleByName(const std::string& name)
{
if (name == "")
{
return GetModuleHandleA(NULL);
}
else
{
return GetModuleHandleA(name.c_str());
}
}
hl::ModuleHandle hl::GetModuleByAddress(uintptr_t adr)
{
hl::ModuleHandle hModule = hl::NullModuleHandle;
if (GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
(LPCTSTR)adr, &hModule) == 0)
{
if (GetLastError() != ERROR_MOD_NOT_FOUND)
{
throw std::runtime_error("GetModuleHandleEx failed");
}
}
return hModule;
}
std::string hl::GetModulePath(hl::ModuleHandle hModule)
{
char path[MAX_PATH];
HL_APICHECK(GetModuleFileNameA(hModule, path, MAX_PATH));
return path;
}
hl::MemoryRegion hl::GetMemoryByAddress(uintptr_t adr, int pid)
{
MEMORY_BASIC_INFORMATION mbi = {};
hl::MemoryRegion region;
if (pid)
{
auto hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
if (!hProc)
{
throw std::runtime_error("OpenProcess failed");
}
if (VirtualQueryEx(hProc, (LPCVOID)adr, &mbi, sizeof(mbi)) != sizeof(mbi))
{
CloseHandle(hProc);
return region;
}
CloseHandle(hProc);
}
else
{
if (VirtualQuery((LPCVOID)adr, &mbi, sizeof(mbi)) != sizeof(mbi))
{
return region;
}
}
region.base = (uintptr_t)mbi.BaseAddress;
region.size = mbi.RegionSize;
if (mbi.State != MEM_COMMIT)
{
region.status = hl::MemoryRegion::Status::Free;
return region;
}
region.status = hl::MemoryRegion::Status::Valid;
region.protection = FromWindowsProt(mbi.Protect);
if (mbi.Type == MEM_IMAGE && pid == 0)
{
region.hModule = hl::GetModuleByAddress(adr);
region.name = hl::GetModulePath(region.hModule);
}
return region;
}
std::vector<hl::MemoryRegion> hl::GetMemoryMap(int pid)
{
std::vector<hl::MemoryRegion> regions;
uintptr_t adr = 0;
auto region = hl::GetMemoryByAddress(adr, pid);
while (region.status != hl::MemoryRegion::Status::Invalid)
{
if (region.status == hl::MemoryRegion::Status::Valid)
{
regions.push_back(region);
}
adr += region.size;
region = hl::GetMemoryByAddress(adr, pid);
}
return regions;
}