mirror of
https://github.com/bb107/MemoryModulePP
synced 2026-06-08 13:15:33 +00:00
Boring
279 lines
8.2 KiB
C++
279 lines
8.2 KiB
C++
#include "stdafx.h"
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static NTSTATUS NTAPI LdrMapDllMemory(
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_In_ HMEMORYMODULE ViewBase,
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_In_ DWORD dwFlags,
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_In_opt_ PCWSTR DllName,
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_In_opt_ PCWSTR lpFullDllName,
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_Out_opt_ PLDR_DATA_TABLE_ENTRY* DataTableEntry) {
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UNICODE_STRING FullDllName, BaseDllName;
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PIMAGE_NT_HEADERS NtHeaders;
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PLDR_DATA_TABLE_ENTRY LdrEntry;
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HANDLE heap = NtCurrentPeb()->ProcessHeap;
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if (!(NtHeaders = RtlImageNtHeader(ViewBase))) return STATUS_INVALID_IMAGE_FORMAT;
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if (!(LdrEntry = RtlAllocateDataTableEntry(ViewBase))) return STATUS_NO_MEMORY;
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if (!NT_SUCCESS(RtlResolveDllNameUnicodeString(DllName, lpFullDllName, &BaseDllName, &FullDllName))) {
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RtlFreeHeap(heap, 0, LdrEntry);
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return STATUS_NO_MEMORY;
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}
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if (!RtlInitializeLdrDataTableEntry(LdrEntry, dwFlags, ViewBase, BaseDllName, FullDllName)) {
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RtlFreeHeap(heap, 0, LdrEntry);
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RtlFreeHeap(heap, 0, BaseDllName.Buffer);
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RtlFreeHeap(heap, 0, FullDllName.Buffer);
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return STATUS_UNSUCCESSFUL;
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}
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RtlInsertMemoryTableEntry(LdrEntry);
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if (DataTableEntry)*DataTableEntry = LdrEntry;
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return STATUS_SUCCESS;
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}
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NTSTATUS NTAPI LdrLoadDllMemoryExW(
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_Out_ HMEMORYMODULE* BaseAddress,
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_Out_opt_ PVOID* LdrEntry,
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_In_ DWORD dwFlags,
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_In_ LPVOID BufferAddress,
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_In_ size_t BufferSize,
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_In_opt_ LPCWSTR DllName,
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_In_opt_ LPCWSTR DllFullName) {
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PMEMORYMODULE module = nullptr;
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NTSTATUS status = STATUS_SUCCESS;
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PLDR_DATA_TABLE_ENTRY ModuleEntry = nullptr;
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PIMAGE_NT_HEADERS headers = nullptr;
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if (BufferSize)return STATUS_INVALID_PARAMETER_5;
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__try {
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*BaseAddress = nullptr;
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if (LdrEntry)*LdrEntry = nullptr;
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if (!RtlIsValidImageBuffer(BufferAddress, &BufferSize) && !(dwFlags & LOAD_FLAGS_PASS_IMAGE_CHECK))status = STATUS_INVALID_IMAGE_FORMAT;
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}
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__except (EXCEPTION_EXECUTE_HANDLER) {
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status = GetExceptionCode();
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}
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if (!NT_SUCCESS(status))return status;
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if (dwFlags & LOAD_FLAGS_NOT_MAP_DLL) {
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dwFlags &= LOAD_FLAGS_NOT_MAP_DLL;
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DllName = DllFullName = nullptr;
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}
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if (dwFlags & LOAD_FLAGS_USE_DLL_NAME && (!DllName || !DllFullName))return STATUS_INVALID_PARAMETER_3;
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if (DllName) {
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PLIST_ENTRY ListHead = &NtCurrentPeb()->Ldr->InLoadOrderModuleList, ListEntry = ListHead->Flink;
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PIMAGE_NT_HEADERS h1 = RtlImageNtHeader(BufferAddress), h2 = nullptr;
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if (!h1)return STATUS_INVALID_IMAGE_FORMAT;
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while (ListEntry != ListHead) {
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PLDR_DATA_TABLE_ENTRY CurEntry = CONTAINING_RECORD(ListEntry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
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ListEntry = ListEntry->Flink;
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/* Check if it's being unloaded */
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if (!CurEntry->InMemoryOrderLinks.Flink) continue;
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/* Check if name matches */
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if (!_wcsnicmp(DllName, CurEntry->BaseDllName.Buffer, (CurEntry->BaseDllName.Length / sizeof(wchar_t)) - 4) ||
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!_wcsnicmp(DllName, CurEntry->BaseDllName.Buffer, CurEntry->BaseDllName.Length / sizeof(wchar_t))) {
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/* Let's compare their headers */
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if (!(h2 = RtlImageNtHeader(CurEntry->DllBase)))continue;
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if (!(module = MapMemoryModuleHandle((HMEMORYMODULE)CurEntry->DllBase)))continue;
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if ((h1->OptionalHeader.SizeOfCode == h2->OptionalHeader.SizeOfCode) &&
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(h1->OptionalHeader.SizeOfHeaders == h2->OptionalHeader.SizeOfHeaders)) {
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/* This is our entry!, update load count and return success */
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if (!module->UseReferenceCount || dwFlags & LOAD_FLAGS_NOT_USE_REFERENCE_COUNT)return STATUS_INVALID_PARAMETER_3;
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RtlUpdateReferenceCount(module, FLAG_REFERENCE);
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*BaseAddress = (HMEMORYMODULE)CurEntry->DllBase;
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if (LdrEntry)*LdrEntry = CurEntry;
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return STATUS_SUCCESS;
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}
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}
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}
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}
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status = MemoryLoadLibrary(BaseAddress, BufferAddress, (DWORD)BufferSize);
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if (!NT_SUCCESS(status) || status == STATUS_IMAGE_MACHINE_TYPE_MISMATCH)return status;
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if (!(module = MapMemoryModuleHandle(*BaseAddress))) {
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__fastfail(FAST_FAIL_FATAL_APP_EXIT);
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DebugBreak();
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ExitProcess(STATUS_INVALID_ADDRESS);
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TerminateProcess(NtCurrentProcess(), STATUS_INVALID_ADDRESS);
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}
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module->loadFromLdrLoadDllMemory = true;
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headers = RtlImageNtHeader(*BaseAddress);
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if (headers->OptionalHeader.DllCharacteristics & IMAGE_DLLCHARACTERISTICS_NO_SEH)dwFlags |= LOAD_FLAGS_NOT_ADD_INVERTED_FUNCTION;
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if (dwFlags & LOAD_FLAGS_NOT_MAP_DLL) {
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do {
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status = MemoryResolveImportTable(LPBYTE(*BaseAddress), headers, module);
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if (!NT_SUCCESS(status))break;
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status = MemorySetSectionProtection(LPBYTE(*BaseAddress), headers);
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if (!NT_SUCCESS(status))break;
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if (!LdrpExecuteTLS(module) || !LdrpCallInitializers(module, DLL_PROCESS_ATTACH)) {
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status = STATUS_DLL_INIT_FAILED;
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break;
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}
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} while (false);
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if (!NT_SUCCESS(status)) {
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MemoryFreeLibrary(*BaseAddress);
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}
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return status;
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}
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do {
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status = LdrMapDllMemory(*BaseAddress, dwFlags, DllName, DllFullName, &ModuleEntry);
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if (!NT_SUCCESS(status))break;
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module->MappedDll = true;
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module->LdrEntry = ModuleEntry;
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status = MemoryResolveImportTable(LPBYTE(*BaseAddress), headers, module);
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if (!NT_SUCCESS(status))break;
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status = MemorySetSectionProtection(LPBYTE(*BaseAddress), headers);
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if (!NT_SUCCESS(status))break;
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if (!(dwFlags & LOAD_FLAGS_NOT_USE_REFERENCE_COUNT))module->UseReferenceCount = true;
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if (!(dwFlags & LOAD_FLAGS_NOT_ADD_INVERTED_FUNCTION)) {
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status = RtlInsertInvertedFunctionTable((PVOID)module->codeBase, headers->OptionalHeader.SizeOfImage);
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if (!NT_SUCCESS(status)) break;
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module->InsertInvertedFunctionTableEntry = true;
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}
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if (!(dwFlags & LOAD_FLAGS_NOT_HANDLE_TLS)) {
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status = MmpHandleTlsData(ModuleEntry);
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if (!NT_SUCCESS(status)) {
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if (dwFlags & LOAD_FLAGS_NOT_FAIL_IF_HANDLE_TLS) status = 0x7fffffff;
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if (!NT_SUCCESS(status))break;
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}
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else {
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module->TlsHandled = true;
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}
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}
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if (dwFlags & LOAD_FLAGS_HOOK_DOT_NET) {
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MmpPreInitializeHooksForDotNet();
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}
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if (!LdrpExecuteTLS(module) || !LdrpCallInitializers(module, DLL_PROCESS_ATTACH)) {
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status = STATUS_DLL_INIT_FAILED;
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break;
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}
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if (dwFlags & LOAD_FLAGS_HOOK_DOT_NET) {
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MmpInitializeHooksForDotNet();
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}
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} while (false);
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if (NT_SUCCESS(status)) {
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if (LdrEntry)*LdrEntry = ModuleEntry;
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}
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else {
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LdrUnloadDllMemory(*BaseAddress);
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*BaseAddress = nullptr;
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}
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return status;
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}
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NTSTATUS NTAPI LdrUnloadDllMemory(_In_ HMEMORYMODULE BaseAddress) {
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PLDR_DATA_TABLE_ENTRY CurEntry;
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ULONG count = 0;
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NTSTATUS status = STATUS_SUCCESS;
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PMEMORYMODULE module = MapMemoryModuleHandle(BaseAddress);
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PIMAGE_NT_HEADERS headers = RtlImageNtHeader(BaseAddress);
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do {
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//Not a memory module loaded via LdrLoadDllMemory
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if (!module || !module->loadFromLdrLoadDllMemory) {
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status = STATUS_INVALID_HANDLE;
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break;
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}
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//Mapping dll failed
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if (!module->MappedDll) {
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module->underUnload = true;
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status = (MemoryFreeLibrary(BaseAddress) ? STATUS_SUCCESS : STATUS_UNSUCCESSFUL);
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break;
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}
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CurEntry = (PLDR_DATA_TABLE_ENTRY)module->LdrEntry;
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if (headers->OptionalHeader.SizeOfImage != CurEntry->SizeOfImage) __fastfail(FAST_FAIL_FATAL_APP_EXIT);
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if (module->UseReferenceCount) {
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status = RtlGetReferenceCount(module, &count);
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if (!NT_SUCCESS(status)) break;
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}
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if (count & ~1) {
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status = RtlUpdateReferenceCount(module, FLAG_DEREFERENCE);
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break;
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}
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module->underUnload = true;
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if (module->initialized) {
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PLDR_INIT_ROUTINE((LPVOID)(module->codeBase + headers->OptionalHeader.AddressOfEntryPoint))(
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(HINSTANCE)module->codeBase,
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DLL_PROCESS_DETACH,
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0
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);
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}
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if (module->MappedDll) {
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if (module->InsertInvertedFunctionTableEntry) {
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status = RtlRemoveInvertedFunctionTable(BaseAddress);
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if (!NT_SUCCESS(status)) __fastfail(FAST_FAIL_CORRUPT_LIST_ENTRY);
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}
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if (module->TlsHandled) {
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status = MmpReleaseTlsEntry(CurEntry);
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if (!NT_SUCCESS(status)) __fastfail(FAST_FAIL_FATAL_APP_EXIT);
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}
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if (!RtlFreeLdrDataTableEntry(CurEntry)) __fastfail(FAST_FAIL_FATAL_APP_EXIT);
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}
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if (!MemoryFreeLibrary(BaseAddress)) __fastfail(FAST_FAIL_FATAL_APP_EXIT);
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} while (false);
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return status;
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}
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DECLSPEC_NORETURN
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VOID NTAPI LdrUnloadDllMemoryAndExitThread(_In_ HMEMORYMODULE BaseAddress, _In_ DWORD dwExitCode) {
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LdrUnloadDllMemory(BaseAddress);
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RtlExitUserThread(dwExitCode);
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}
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NTSTATUS NTAPI LdrQuerySystemMemoryModuleFeatures(_Out_ PDWORD pFeatures) {
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NTSTATUS status = STATUS_SUCCESS;
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__try {
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*pFeatures = MmpGlobalDataPtr->MmpFeatures;
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}
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__except (EXCEPTION_EXECUTE_HANDLER) {
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status = GetExceptionCode();
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}
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return status;
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}
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