1 files changed, 46 insertions, 0 deletions
diff --git a/driver/undocumented.h b/driver/undocumented.h
new file mode 100644
index 0000000..a3b3926
--- /dev/null
+++ b/driver/undocumented.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
+ */
+
+#pragma once
+
+#include <wdm.h>
+
+typedef enum
+{
+    SystemExtendedHandleInformation = 0x40
+} SYSTEM_INFORMATION_CLASS;
+
+typedef struct _SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX
+{
+    PVOID Object;
+    HANDLE UniqueProcessId;
+    HANDLE HandleValue;
+    ACCESS_MASK GrantedAccess;
+    USHORT CreatorBackTraceIndex;
+    USHORT ObjectTypeIndex;
+    ULONG HandleAttributes;
+    ULONG Reserved;
+} SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX, *PSYSTEM_HANDLE_TABLE_ENTRY_INFO_EX;
+
+typedef struct _SYSTEM_HANDLE_INFORMATION_EX
+{
+    ULONG_PTR NumberOfHandles;
+    ULONG_PTR Reserved;
+    SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX Handles[ANYSIZE_ARRAY];
+} SYSTEM_HANDLE_INFORMATION_EX, *PSYSTEM_HANDLE_INFORMATION_EX;
+
+NTSYSAPI
+NTSTATUS
+NTAPI
+ZwQuerySystemInformation(
+    SYSTEM_INFORMATION_CLASS SystemInformationClass,
+    PVOID SystemInformation,
+    ULONG SystemInformationLength,
+    ULONG *ReturnLength);
+
+NTSYSAPI
+NTSTATUS
+NTAPI
+ZwYieldExecution(VOID);