mirror of
https://gitlab.com/Mr_Goldberg/goldberg_emulator.git
synced 2024-11-14 10:50:13 +01:00
333 lines
12 KiB
C++
333 lines
12 KiB
C++
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Add DLLs to a module import table (uimports.cpp of detours.lib)
|
|
//
|
|
// Microsoft Research Detours Package, Version 4.0.1
|
|
//
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
|
//
|
|
// Note that this file is included into creatwth.cpp one or more times
|
|
// (once for each supported module format).
|
|
//
|
|
|
|
#if DETOURS_VERSION != 0x4c0c1 // 0xMAJORcMINORcPATCH
|
|
#error detours.h version mismatch
|
|
#endif
|
|
|
|
// UpdateImports32 aka UpdateImports64
|
|
static BOOL UPDATE_IMPORTS_XX(HANDLE hProcess,
|
|
HMODULE hModule,
|
|
__in_ecount(nDlls) LPCSTR *plpDlls,
|
|
DWORD nDlls)
|
|
{
|
|
BOOL fSucceeded = FALSE;
|
|
DWORD cbNew = 0;
|
|
|
|
BYTE * pbNew = NULL;
|
|
DWORD i;
|
|
SIZE_T cbRead;
|
|
DWORD n;
|
|
|
|
PBYTE pbModule = (PBYTE)hModule;
|
|
|
|
IMAGE_DOS_HEADER idh;
|
|
ZeroMemory(&idh, sizeof(idh));
|
|
if (!ReadProcessMemory(hProcess, pbModule, &idh, sizeof(idh), &cbRead)
|
|
|| cbRead < sizeof(idh)) {
|
|
|
|
DETOUR_TRACE(("ReadProcessMemory(idh@%p..%p) failed: %lu\n",
|
|
pbModule, pbModule + sizeof(idh), GetLastError()));
|
|
|
|
finish:
|
|
if (pbNew != NULL) {
|
|
delete[] pbNew;
|
|
pbNew = NULL;
|
|
}
|
|
return fSucceeded;
|
|
}
|
|
|
|
IMAGE_NT_HEADERS_XX inh;
|
|
ZeroMemory(&inh, sizeof(inh));
|
|
|
|
if (!ReadProcessMemory(hProcess, pbModule + idh.e_lfanew, &inh, sizeof(inh), &cbRead)
|
|
|| cbRead < sizeof(inh)) {
|
|
DETOUR_TRACE(("ReadProcessMemory(inh@%p..%p) failed: %lu\n",
|
|
pbModule + idh.e_lfanew,
|
|
pbModule + idh.e_lfanew + sizeof(inh),
|
|
GetLastError()));
|
|
goto finish;
|
|
}
|
|
|
|
if (inh.OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC_XX) {
|
|
DETOUR_TRACE(("Wrong size image (%04x != %04x).\n",
|
|
inh.OptionalHeader.Magic, IMAGE_NT_OPTIONAL_HDR_MAGIC_XX));
|
|
SetLastError(ERROR_INVALID_BLOCK);
|
|
goto finish;
|
|
}
|
|
|
|
// Zero out the bound table so loader doesn't use it instead of our new table.
|
|
inh.BOUND_DIRECTORY.VirtualAddress = 0;
|
|
inh.BOUND_DIRECTORY.Size = 0;
|
|
|
|
// Find the size of the mapped file.
|
|
DWORD dwSec = idh.e_lfanew +
|
|
FIELD_OFFSET(IMAGE_NT_HEADERS_XX, OptionalHeader) +
|
|
inh.FileHeader.SizeOfOptionalHeader;
|
|
|
|
for (i = 0; i < inh.FileHeader.NumberOfSections; i++) {
|
|
IMAGE_SECTION_HEADER ish;
|
|
ZeroMemory(&ish, sizeof(ish));
|
|
|
|
if (!ReadProcessMemory(hProcess, pbModule + dwSec + sizeof(ish) * i, &ish,
|
|
sizeof(ish), &cbRead)
|
|
|| cbRead < sizeof(ish)) {
|
|
|
|
DETOUR_TRACE(("ReadProcessMemory(ish@%p..%p) failed: %lu\n",
|
|
pbModule + dwSec + sizeof(ish) * i,
|
|
pbModule + dwSec + sizeof(ish) * (i + 1),
|
|
GetLastError()));
|
|
goto finish;
|
|
}
|
|
|
|
DETOUR_TRACE(("ish[%lu] : va=%08lx sr=%lu\n", i, ish.VirtualAddress, ish.SizeOfRawData));
|
|
|
|
// If the linker didn't suggest an IAT in the data directories, the
|
|
// loader will look for the section of the import directory to be used
|
|
// for this instead. Since we put out new IMPORT_DIRECTORY outside any
|
|
// section boundary, the loader will not find it. So we provide one
|
|
// explicitly to avoid the search.
|
|
//
|
|
if (inh.IAT_DIRECTORY.VirtualAddress == 0 &&
|
|
inh.IMPORT_DIRECTORY.VirtualAddress >= ish.VirtualAddress &&
|
|
inh.IMPORT_DIRECTORY.VirtualAddress < ish.VirtualAddress + ish.SizeOfRawData) {
|
|
|
|
inh.IAT_DIRECTORY.VirtualAddress = ish.VirtualAddress;
|
|
inh.IAT_DIRECTORY.Size = ish.SizeOfRawData;
|
|
}
|
|
}
|
|
|
|
if (inh.IMPORT_DIRECTORY.VirtualAddress != 0 && inh.IMPORT_DIRECTORY.Size == 0) {
|
|
|
|
// Don't worry about changing the PE file,
|
|
// because the load information of the original PE header has been saved and will be restored.
|
|
// The change here is just for the following code to work normally
|
|
|
|
PIMAGE_IMPORT_DESCRIPTOR pImageImport = (PIMAGE_IMPORT_DESCRIPTOR)(pbModule + inh.IMPORT_DIRECTORY.VirtualAddress);
|
|
|
|
do {
|
|
IMAGE_IMPORT_DESCRIPTOR ImageImport;
|
|
if (!ReadProcessMemory(hProcess, pImageImport, &ImageImport, sizeof(ImageImport), NULL)) {
|
|
DETOUR_TRACE(("ReadProcessMemory failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
inh.IMPORT_DIRECTORY.Size += sizeof(IMAGE_IMPORT_DESCRIPTOR);
|
|
if (!ImageImport.Name) {
|
|
break;
|
|
}
|
|
++pImageImport;
|
|
} while (TRUE);
|
|
|
|
DWORD dwLastError = GetLastError();
|
|
OutputDebugString(TEXT("[This PE file has an import table, but the import table size is marked as 0. This is an error.")
|
|
TEXT("If it is not repaired, the launched program will not work properly, Detours has automatically repaired its import table size for you! ! !]\r\n"));
|
|
if (GetLastError() != dwLastError) {
|
|
SetLastError(dwLastError);
|
|
}
|
|
}
|
|
|
|
DETOUR_TRACE((" Imports: %p..%p\n",
|
|
pbModule + inh.IMPORT_DIRECTORY.VirtualAddress,
|
|
pbModule + inh.IMPORT_DIRECTORY.VirtualAddress +
|
|
inh.IMPORT_DIRECTORY.Size));
|
|
|
|
// Calculate new import directory size. Note that since inh is from another
|
|
// process, inh could have been corrupted. We need to protect against
|
|
// integer overflow in allocation calculations.
|
|
DWORD nOldDlls = inh.IMPORT_DIRECTORY.Size / sizeof(IMAGE_IMPORT_DESCRIPTOR);
|
|
DWORD obRem;
|
|
if (DWordMult(sizeof(IMAGE_IMPORT_DESCRIPTOR), nDlls, &obRem) != S_OK) {
|
|
DETOUR_TRACE(("too many new DLLs.\n"));
|
|
goto finish;
|
|
}
|
|
DWORD obOld;
|
|
if (DWordAdd(obRem, sizeof(IMAGE_IMPORT_DESCRIPTOR) * nOldDlls, &obOld) != S_OK) {
|
|
DETOUR_TRACE(("DLL entries overflow.\n"));
|
|
goto finish;
|
|
}
|
|
DWORD obTab = PadToDwordPtr(obOld);
|
|
// Check for integer overflow.
|
|
if (obTab < obOld) {
|
|
DETOUR_TRACE(("DLL entries padding overflow.\n"));
|
|
goto finish;
|
|
}
|
|
DWORD stSize;
|
|
if (DWordMult(sizeof(DWORD_XX) * 4, nDlls, &stSize) != S_OK) {
|
|
DETOUR_TRACE(("String table overflow.\n"));
|
|
goto finish;
|
|
}
|
|
DWORD obDll;
|
|
if (DWordAdd(obTab, stSize, &obDll) != S_OK) {
|
|
DETOUR_TRACE(("Import table size overflow\n"));
|
|
goto finish;
|
|
}
|
|
DWORD obStr = obDll;
|
|
cbNew = obStr;
|
|
for (n = 0; n < nDlls; n++) {
|
|
if (DWordAdd(cbNew, PadToDword((DWORD)strlen(plpDlls[n]) + 1), &cbNew) != S_OK) {
|
|
DETOUR_TRACE(("Overflow adding string table entry\n"));
|
|
goto finish;
|
|
}
|
|
}
|
|
pbNew = new BYTE [cbNew];
|
|
if (pbNew == NULL) {
|
|
DETOUR_TRACE(("new BYTE [cbNew] failed.\n"));
|
|
goto finish;
|
|
}
|
|
ZeroMemory(pbNew, cbNew);
|
|
|
|
PBYTE pbBase = pbModule;
|
|
PBYTE pbNext = pbBase
|
|
+ inh.OptionalHeader.BaseOfCode
|
|
+ inh.OptionalHeader.SizeOfCode
|
|
+ inh.OptionalHeader.SizeOfInitializedData
|
|
+ inh.OptionalHeader.SizeOfUninitializedData;
|
|
if (pbBase < pbNext) {
|
|
pbBase = pbNext;
|
|
}
|
|
DETOUR_TRACE(("pbBase = %p\n", pbBase));
|
|
|
|
PBYTE pbNewIid = FindAndAllocateNearBase(hProcess, pbModule, pbBase, cbNew);
|
|
if (pbNewIid == NULL) {
|
|
DETOUR_TRACE(("FindAndAllocateNearBase failed.\n"));
|
|
goto finish;
|
|
}
|
|
|
|
PIMAGE_IMPORT_DESCRIPTOR piid = (PIMAGE_IMPORT_DESCRIPTOR)pbNew;
|
|
IMAGE_THUNK_DATAXX *pt = NULL;
|
|
|
|
DWORD obBase = (DWORD)(pbNewIid - pbModule);
|
|
DWORD dwProtect = 0;
|
|
|
|
if (inh.IMPORT_DIRECTORY.VirtualAddress != 0) {
|
|
// Read the old import directory if it exists.
|
|
DETOUR_TRACE(("IMPORT_DIRECTORY perms=%lx\n", dwProtect));
|
|
|
|
if (!ReadProcessMemory(hProcess,
|
|
pbModule + inh.IMPORT_DIRECTORY.VirtualAddress,
|
|
&piid[nDlls],
|
|
nOldDlls * sizeof(IMAGE_IMPORT_DESCRIPTOR), &cbRead)
|
|
|| cbRead < nOldDlls * sizeof(IMAGE_IMPORT_DESCRIPTOR)) {
|
|
|
|
DETOUR_TRACE(("ReadProcessMemory(imports) failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
for (n = 0; n < nDlls; n++) {
|
|
HRESULT hrRet = StringCchCopyA((char*)pbNew + obStr, cbNew - obStr, plpDlls[n]);
|
|
if (FAILED(hrRet)) {
|
|
DETOUR_TRACE(("StringCchCopyA failed: %08lx\n", hrRet));
|
|
goto finish;
|
|
}
|
|
|
|
// After copying the string, we patch up the size "??" bits if any.
|
|
hrRet = ReplaceOptionalSizeA((char*)pbNew + obStr,
|
|
cbNew - obStr,
|
|
DETOURS_STRINGIFY(DETOURS_BITS_XX));
|
|
if (FAILED(hrRet)) {
|
|
DETOUR_TRACE(("ReplaceOptionalSizeA failed: %08lx\n", hrRet));
|
|
goto finish;
|
|
}
|
|
|
|
DWORD nOffset = obTab + (sizeof(IMAGE_THUNK_DATAXX) * (4 * n));
|
|
piid[n].OriginalFirstThunk = obBase + nOffset;
|
|
|
|
// We need 2 thunks for the import table and 2 thunks for the IAT.
|
|
// One for an ordinal import and one to mark the end of the list.
|
|
pt = ((IMAGE_THUNK_DATAXX*)(pbNew + nOffset));
|
|
pt[0].u1.Ordinal = IMAGE_ORDINAL_FLAG_XX + 1;
|
|
pt[1].u1.Ordinal = 0;
|
|
|
|
nOffset = obTab + (sizeof(IMAGE_THUNK_DATAXX) * ((4 * n) + 2));
|
|
piid[n].FirstThunk = obBase + nOffset;
|
|
pt = ((IMAGE_THUNK_DATAXX*)(pbNew + nOffset));
|
|
pt[0].u1.Ordinal = IMAGE_ORDINAL_FLAG_XX + 1;
|
|
pt[1].u1.Ordinal = 0;
|
|
piid[n].TimeDateStamp = 0;
|
|
piid[n].ForwarderChain = 0;
|
|
piid[n].Name = obBase + obStr;
|
|
|
|
obStr += PadToDword((DWORD)strlen(plpDlls[n]) + 1);
|
|
}
|
|
_Analysis_assume_(obStr <= cbNew);
|
|
|
|
#if 0
|
|
for (i = 0; i < nDlls + nOldDlls; i++) {
|
|
DETOUR_TRACE(("%8d. Look=%08x Time=%08x Fore=%08x Name=%08x Addr=%08x\n",
|
|
i,
|
|
piid[i].OriginalFirstThunk,
|
|
piid[i].TimeDateStamp,
|
|
piid[i].ForwarderChain,
|
|
piid[i].Name,
|
|
piid[i].FirstThunk));
|
|
if (piid[i].OriginalFirstThunk == 0 && piid[i].FirstThunk == 0) {
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (!WriteProcessMemory(hProcess, pbNewIid, pbNew, obStr, NULL)) {
|
|
DETOUR_TRACE(("WriteProcessMemory(iid) failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
|
|
DETOUR_TRACE(("obBaseBef = %08lx..%08lx\n",
|
|
inh.IMPORT_DIRECTORY.VirtualAddress,
|
|
inh.IMPORT_DIRECTORY.VirtualAddress + inh.IMPORT_DIRECTORY.Size));
|
|
DETOUR_TRACE(("obBaseAft = %08lx..%08lx\n", obBase, obBase + obStr));
|
|
|
|
// In this case the file didn't have an import directory in first place,
|
|
// so we couldn't fix the missing IAT above. We still need to explicitly
|
|
// provide an IAT to prevent to loader from looking for one.
|
|
//
|
|
if (inh.IAT_DIRECTORY.VirtualAddress == 0) {
|
|
inh.IAT_DIRECTORY.VirtualAddress = obBase;
|
|
inh.IAT_DIRECTORY.Size = cbNew;
|
|
}
|
|
|
|
inh.IMPORT_DIRECTORY.VirtualAddress = obBase;
|
|
inh.IMPORT_DIRECTORY.Size = cbNew;
|
|
|
|
/////////////////////// Update the NT header for the new import directory.
|
|
//
|
|
if (!DetourVirtualProtectSameExecuteEx(hProcess, pbModule, inh.OptionalHeader.SizeOfHeaders,
|
|
PAGE_EXECUTE_READWRITE, &dwProtect)) {
|
|
DETOUR_TRACE(("VirtualProtectEx(inh) write failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
|
|
inh.OptionalHeader.CheckSum = 0;
|
|
|
|
if (!WriteProcessMemory(hProcess, pbModule, &idh, sizeof(idh), NULL)) {
|
|
DETOUR_TRACE(("WriteProcessMemory(idh) failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
DETOUR_TRACE(("WriteProcessMemory(idh:%p..%p)\n", pbModule, pbModule + sizeof(idh)));
|
|
|
|
if (!WriteProcessMemory(hProcess, pbModule + idh.e_lfanew, &inh, sizeof(inh), NULL)) {
|
|
DETOUR_TRACE(("WriteProcessMemory(inh) failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
DETOUR_TRACE(("WriteProcessMemory(inh:%p..%p)\n",
|
|
pbModule + idh.e_lfanew,
|
|
pbModule + idh.e_lfanew + sizeof(inh)));
|
|
|
|
if (!VirtualProtectEx(hProcess, pbModule, inh.OptionalHeader.SizeOfHeaders,
|
|
dwProtect, &dwProtect)) {
|
|
DETOUR_TRACE(("VirtualProtectEx(idh) restore failed: %lu\n", GetLastError()));
|
|
goto finish;
|
|
}
|
|
|
|
fSucceeded = TRUE;
|
|
goto finish;
|
|
}
|