From ea943293c6185842b1350cc55c39df543fc64cf0 Mon Sep 17 00:00:00 2001
From: Christian Costa <titan.costa@gmail.com>
Date: Wed, 3 Oct 2012 08:55:06 +0200
Subject: [PATCH] ntoskrnl.exe: Add stub for ExCreateCallback.

---
 dlls/ntoskrnl.exe/ntoskrnl.c        | 12 ++++++++++++
 dlls/ntoskrnl.exe/ntoskrnl.exe.spec |  2 +-
 include/ddk/wdm.h                   |  9 +++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 632cea539c0..06993eeb39f 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -1104,6 +1104,18 @@ PVOID WINAPI ExAllocatePoolWithQuotaTag( POOL_TYPE type, SIZE_T size, ULONG tag
 }
 
 
+/***********************************************************************
+ *           ExCreateCallback   (NTOSKRNL.EXE.@)
+ */
+NTSTATUS WINAPI ExCreateCallback(PCALLBACK_OBJECT *obj, POBJECT_ATTRIBUTES attr,
+                                 BOOLEAN create, BOOLEAN allow_multiple)
+{
+    FIXME("(%p, %p, %u, %u): stub\n", obj, attr, create, allow_multiple);
+
+    return STATUS_NOT_IMPLEMENTED;
+}
+
+
 /***********************************************************************
  *           ExFreePool   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index b1698159c1c..4bce7ecd1d1 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -122,7 +122,7 @@
 @ stdcall ExAllocatePoolWithTag(long long long)
 @ stub ExAllocatePoolWithTagPriority
 @ stub ExConvertExclusiveToSharedLite
-@ stub ExCreateCallback
+@ stdcall ExCreateCallback(ptr ptr long long)
 @ stub ExDeleteNPagedLookasideList
 @ stub ExDeletePagedLookasideList
 @ stub ExDeleteResourceLite
diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h
index 183c9508c1d..bf9c15ed64e 100644
--- a/include/ddk/wdm.h
+++ b/include/ddk/wdm.h
@@ -1106,6 +1106,15 @@ typedef enum  {
     IoModifyAccess
 } LOCK_OPERATION;
 
+typedef struct _CALLBACK_OBJECT
+{
+    ULONG Signature;
+    KSPIN_LOCK Lock;
+    LIST_ENTRY RegisteredCallbacks;
+    BOOLEAN AllowMultipleCallbacks;
+    UCHAR reserved[3];
+} CALLBACK_OBJECT, *PCALLBACK_OBJECT;
+
 NTSTATUS WINAPI ObCloseHandle(IN HANDLE handle);
 
 #ifdef NONAMELESSUNION