From 635759b4f374469956488aaf6fa4c6307a542ee9 Mon Sep 17 00:00:00 2001
From: Zebediah Figura <z.figura12@gmail.com>
Date: Tue, 29 Jan 2019 21:33:08 -0600
Subject: [PATCH 01/13] ntoskrnl.exe: Implement ExInitializeResourceLite().

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
---
 dlls/ntoskrnl.exe/ntoskrnl.c | 11 --------
 dlls/ntoskrnl.exe/sync.c     | 10 +++++++
 include/ddk/wdm.h            | 54 +++++++++++++++++++++++++++++++++++-
 3 files changed, 63 insertions(+), 12 deletions(-)

diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 4b626607..93ba89be 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2081,17 +2081,6 @@ void WINAPI ExFreePoolWithTag( void *ptr, ULONG tag )
     HeapFree( GetProcessHeap(), 0, ptr );
 }
 
-
-/***********************************************************************
- *           ExInitializeResourceLite   (NTOSKRNL.EXE.@)
- */
-NTSTATUS WINAPI ExInitializeResourceLite(PERESOURCE Resource)
-{
-    FIXME( "stub: %p\n", Resource );
-    return STATUS_NOT_IMPLEMENTED;
-}
-
-
 /***********************************************************************
  *           ExInitializeNPagedLookasideList   (NTOSKRNL.EXE.@)
  */
diff --git a/dlls/ntoskrnl.exe/sync.c b/dlls/ntoskrnl.exe/sync.c
index 98b3f9d9..56d46a86 100644
--- a/dlls/ntoskrnl.exe/sync.c
+++ b/dlls/ntoskrnl.exe/sync.c
@@ -663,3 +663,13 @@ void WINAPI ExReleaseFastMutexUnsafe( FAST_MUTEX *mutex )
     if (count < 1)
         KeSetEvent( &mutex->Event, IO_NO_INCREMENT, FALSE );
 }
+
+/***********************************************************************
+ *           ExInitializeResourceLite   (NTOSKRNL.EXE.@)
+ */
+NTSTATUS WINAPI ExInitializeResourceLite( ERESOURCE *resource )
+{
+    TRACE("resource %p.\n", resource);
+    memset(resource, 0, sizeof(*resource));
+    return STATUS_SUCCESS;
+}
diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h
index 293da50c..f76444f1 100644
--- a/include/ddk/wdm.h
+++ b/include/ddk/wdm.h
@@ -153,12 +153,63 @@ typedef struct _KWAIT_BLOCK {
     USHORT WaitType;
 } KWAIT_BLOCK, *PKWAIT_BLOCK, *RESTRICTED_POINTER PRKWAIT_BLOCK;
 
+typedef struct _OWNER_ENTRY
+{
+    ERESOURCE_THREAD OwnerThread;
+    union
+    {
+        struct
+        {
+            ULONG IoPriorityBoosted : 1;
+            ULONG OwnerReferenced : 1;
+            ULONG IoQoSPriorityBoosted : 1;
+            ULONG OwnerCount : 29;
+        };
+        ULONG TableSize;
+    };
+} OWNER_ENTRY, *POWNER_ENTRY;
+
+#define ResourceNeverExclusive       0x0010
+#define ResourceReleaseByOtherThread 0x0020
+#define ResourceOwnedExclusive       0x0080
+
+typedef struct _ERESOURCE
+{
+    LIST_ENTRY SystemResourcesList;
+    OWNER_ENTRY *OwnerTable;
+    SHORT ActiveCount;
+    union
+    {
+        USHORT Flag;
+        struct
+        {
+            UCHAR ReservedLowFlags;
+            UCHAR WaiterPriority;
+        };
+    };
+    KSEMAPHORE *SharedWaiters;
+    KEVENT *ExclusiveWaiters;
+    OWNER_ENTRY OwnerEntry;
+    ULONG ActiveEntries;
+    ULONG ContentionCount;
+    ULONG NumberOfSharedWaiters;
+    ULONG NumberOfExclusiveWaiters;
+#ifdef _WIN64
+    void *Reserved2;
+#endif
+    union
+    {
+        void *Address;
+        ULONG_PTR CreatorBackTraceIndex;
+    };
+    KSPIN_LOCK SpinLock;
+} ERESOURCE, *PERESOURCE;
+
 typedef struct _IO_TIMER *PIO_TIMER;
 typedef struct _IO_TIMER_ROUTINE *PIO_TIMER_ROUTINE;
 typedef struct _ETHREAD *PETHREAD;
 typedef struct _KTHREAD *PKTHREAD, *PRKTHREAD;
 typedef struct _EPROCESS *PEPROCESS;
-typedef struct _ERESOURCE *PERESOURCE;
 typedef struct _IO_WORKITEM *PIO_WORKITEM;
 typedef struct _PAGED_LOOKASIDE_LIST *PPAGED_LOOKASIDE_LIST;
 typedef struct _OBJECT_TYPE *POBJECT_TYPE;
@@ -1469,6 +1520,7 @@ void      WINAPI ExDeleteNPagedLookasideList(PNPAGED_LOOKASIDE_LIST);
 void      WINAPI ExFreePool(PVOID);
 void      WINAPI ExFreePoolWithTag(PVOID,ULONG);
 void      WINAPI ExInitializeNPagedLookasideList(PNPAGED_LOOKASIDE_LIST,PALLOCATE_FUNCTION,PFREE_FUNCTION,ULONG,SIZE_T,ULONG,USHORT);
+NTSTATUS  WINAPI ExInitializeResourceLite(ERESOURCE*);
 PSLIST_ENTRY WINAPI ExInterlockedPopEntrySList(PSLIST_HEADER,PKSPIN_LOCK);
 PSLIST_ENTRY WINAPI ExInterlockedPushEntrySList(PSLIST_HEADER,PSLIST_ENTRY,PKSPIN_LOCK);
 LIST_ENTRY * WINAPI ExInterlockedRemoveHeadList(LIST_ENTRY*,KSPIN_LOCK*);
-- 
2.20.1