[gadamopoulos] 47058: [win32k] - Do not do callbacks to user mode while holding a lock - Fix when WH_MOUSE_LL and WH_JOURNALRECORD are called See issue #4926 for more details.
29 Apr
2010
29 Apr
'10
7:48 a.m.
Author: gadamopoulos
Date: Thu Apr 29 09:48:43 2010
New Revision: 47058
URL: http://svn.reactos.org/svn/reactos?rev=47058&view=rev
Log:
[win32k]
- Do not do callbacks to user mode while holding a lock
- Fix when WH_MOUSE_LL and WH_JOURNALRECORD are called
See issue #4926 for more details.
Modified:
trunk/reactos/subsystems/win32/win32k/include/msgqueue.h
trunk/reactos/subsystems/win32/win32k/ntuser/input.c
trunk/reactos/subsystems/win32/win32k/ntuser/message.c
trunk/reactos/subsystems/win32/win32k/ntuser/msgqueue.c
Modified: trunk/reactos/subsystems/win32/win32k/include/msgqueue.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/in…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/include/msgqueue.h [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/include/msgqueue.h [iso-8859-1] Thu Apr 29
09:48:43 2010
@@ -248,6 +248,16 @@
(message) == WM_NCRBUTTON##code || \
(message) == WM_NCXBUTTON##code )
+#define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
+#define WM_NCMOUSELAST (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
+
+#define IS_MOUSE_MESSAGE(message) \
+ ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) || \
+ (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST))
+
+#define IS_KBD_MESSAGE(message) \
+ (message == WM_KEYDOWN || message == WM_KEYUP)
+
HANDLE FASTCALL
IntMsqSetWakeMask(DWORD WakeMask);
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/input.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/input.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/input.c [iso-8859-1] Thu Apr 29 09:48:43
2010
@@ -203,6 +203,16 @@
IO_STATUS_BLOCK Iosb;
NTSTATUS Status;
MOUSE_ATTRIBUTES MouseAttr;
+
+ Status = Win32kInitWin32Thread(PsGetCurrentThread());
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Win32K: Failed making keyboard thread a win32 thread.\n");
+ return; //(Status);
+ }
+
+ KeSetPriorityThread(&PsGetCurrentThread()->Tcb,
+ LOW_REALTIME_PRIORITY + 3);
InitializeObjectAttributes(&MouseObjectAttributes,
&MouseDeviceName,
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/message.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/message.c [iso-8859-1] Thu Apr 29
09:48:43 2010
@@ -645,6 +645,74 @@
return FALSE;
}
+BOOL ProcessMouseMessage(MSG* Msg, USHORT HitTest, UINT RemoveMsg)
+{
+ MOUSEHOOKSTRUCT MHook;
+ EVENTMSG Event;
+
+ Event.message = Msg->message;
+ Event.time = Msg->time;
+ Event.hwnd = Msg->hwnd;
+ Event.paramL = Msg->pt.x;
+ Event.paramH = Msg->pt.y;
+ co_HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&Event);
+
+
+ MHook.pt = Msg->pt;
+ MHook.hwnd = Msg->hwnd;
+ MHook.wHitTestCode = HitTest;
+ MHook.dwExtraInfo = 0;
+ if (co_HOOK_CallHooks( WH_MOUSE,
+ RemoveMsg ? HC_ACTION : HC_NOREMOVE,
+ Msg->message,
+ (LPARAM)&MHook ))
+ {
+ if (ISITHOOKED(WH_CBT))
+ {
+ MHook.pt = Msg->pt;
+ MHook.hwnd = Msg->hwnd;
+ MHook.wHitTestCode = HitTest;
+ MHook.dwExtraInfo = 0;
+ co_HOOK_CallHooks( WH_CBT,
+ HCBT_CLICKSKIPPED,
+ Msg->message,
+ (LPARAM)&MHook);
+ }
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+BOOL ProcessKeyboardMessage(MSG* Msg, UINT RemoveMsg)
+{
+ EVENTMSG Event;
+
+ Event.message = Msg->message;
+ Event.hwnd = Msg->hwnd;
+ Event.time = Msg->time;
+ Event.paramL = (Msg->wParam & 0xFF) | (HIWORD(Msg->lParam) << 8);
+ Event.paramH = Msg->lParam & 0x7FFF;
+ if (HIWORD(Msg->lParam) & 0x0100) Event.paramH |= 0x8000;
+ co_HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&Event);
+
+ if (co_HOOK_CallHooks( WH_KEYBOARD,
+ RemoveMsg ? HC_ACTION : HC_NOREMOVE,
+ LOWORD(Msg->wParam),
+ Msg->lParam))
+ {
+ if (ISITHOOKED(WH_CBT))
+ {
+ /* skip this message */
+ co_HOOK_CallHooks( WH_CBT,
+ HCBT_KEYSKIPPED,
+ LOWORD(Msg->wParam),
+ Msg->lParam );
+ }
+ return FALSE;
+ }
+ return TRUE;
+}
/*
* Internal version of PeekMessage() doing all the work
*/
@@ -662,7 +730,6 @@
BOOL Present, RemoveMessages;
USER_REFERENCE_ENTRY Ref;
USHORT HitTest;
- MOUSEHOOKSTRUCT MHook;
/* The queues and order in which they are checked are documented in the MSDN
article on GetMessage() */
@@ -867,52 +934,20 @@
}
MsgExit:
- if ( ISITHOOKED(WH_MOUSE) &&
- Msg->Msg.message >= WM_MOUSEFIRST &&
- Msg->Msg.message <= WM_MOUSELAST )
- {
- MHook.pt = Msg->Msg.pt;
- MHook.hwnd = Msg->Msg.hwnd;
- MHook.wHitTestCode = HitTest;
- MHook.dwExtraInfo = 0;
- if (co_HOOK_CallHooks( WH_MOUSE,
- RemoveMsg ? HC_ACTION : HC_NOREMOVE,
- Msg->Msg.message,
- (LPARAM)&MHook ))
- {
- if (ISITHOOKED(WH_CBT))
- {
- MHook.pt = Msg->Msg.pt;
- MHook.hwnd = Msg->Msg.hwnd;
- MHook.wHitTestCode = HitTest;
- MHook.dwExtraInfo = 0;
- co_HOOK_CallHooks( WH_CBT,
- HCBT_CLICKSKIPPED,
- Msg->Msg.message,
- (LPARAM)&MHook);
- }
- return FALSE;
- }
- }
-
- if ( ISITHOOKED(WH_KEYBOARD) &&
- (Msg->Msg.message == WM_KEYDOWN || Msg->Msg.message == WM_KEYUP) )
- {
- if (co_HOOK_CallHooks( WH_KEYBOARD,
- RemoveMsg ? HC_ACTION : HC_NOREMOVE,
- LOWORD(Msg->Msg.wParam),
- Msg->Msg.lParam))
- {
- if (ISITHOOKED(WH_CBT))
- {
- /* skip this message */
- co_HOOK_CallHooks( WH_CBT,
- HCBT_KEYSKIPPED,
- LOWORD(Msg->Msg.wParam),
- Msg->Msg.lParam );
- }
- return FALSE;
- }
+ if ( ISITHOOKED(WH_MOUSE) && IS_MOUSE_MESSAGE(Msg->Msg.message))
+ {
+ if(!ProcessMouseMessage(&Msg->Msg, HitTest, RemoveMsg))
+ {
+ return FALSE;
+ }
+ }
+
+ if ( ISITHOOKED(WH_KEYBOARD) && IS_KBD_MESSAGE(Msg->Msg.message))
+ {
+ if(!ProcessKeyboardMessage(&Msg->Msg, RemoveMsg))
+ {
+ return FALSE;
+ }
}
// The WH_GETMESSAGE hook enables an application to monitor messages about to
// be returned by the GetMessage or PeekMessage function.
Modified: trunk/reactos/subsystems/win32/win32k/ntuser/msgqueue.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/msgqueue.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/msgqueue.c [iso-8859-1] Thu Apr 29
09:48:43 2010
@@ -174,36 +174,53 @@
LARGE_INTEGER LargeTickCount;
KIRQL OldIrql;
ULONG Prev;
- EVENTMSG Event;
-
- IntLockSystemMessageQueue(OldIrql);
-
- /*
- * Bail out if the queue is full. FIXME: We should handle this case
- * more gracefully.
- */
-
- if (SystemMessageQueueCount == SYSTEM_MESSAGE_QUEUE_SIZE)
- {
- IntUnLockSystemMessageQueue(OldIrql);
- return;
- }
+ MSLLHOOKSTRUCT MouseHookData;
KeQueryTickCount(&LargeTickCount);
Msg->time = MsqCalculateMessageTime(&LargeTickCount);
- Event.message = Msg->message;
- Event.time = Msg->time;
- Event.hwnd = Msg->hwnd;
- Event.paramL = Msg->pt.x;
- Event.paramH = Msg->pt.y;
- co_HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&Event);
+ MouseHookData.pt.x = LOWORD(Msg->lParam);
+ MouseHookData.pt.y = HIWORD(Msg->lParam);
+ switch(Msg->message)
+ {
+ case WM_MOUSEWHEEL:
+ MouseHookData.mouseData = MAKELONG(0,
GET_WHEEL_DELTA_WPARAM(Msg->wParam));
+ break;
+ case WM_XBUTTONDOWN:
+ case WM_XBUTTONUP:
+ case WM_XBUTTONDBLCLK:
+ case WM_NCXBUTTONDOWN:
+ case WM_NCXBUTTONUP:
+ case WM_NCXBUTTONDBLCLK:
+ MouseHookData.mouseData = MAKELONG(0, HIWORD(Msg->wParam));
+ break;
+ default:
+ MouseHookData.mouseData = 0;
+ break;
+ }
+ MouseHookData.flags = 0;
+ MouseHookData.time = Msg->time;
+ MouseHookData.dwExtraInfo = 0;
+ if( co_HOOK_CallHooks(WH_MOUSE_LL, HC_ACTION, Msg->message, (LPARAM)
&MouseHookData))
+ return;
/*
* If we got WM_MOUSEMOVE and there are already messages in the
* system message queue, check if the last message is mouse move
* and if it is then just overwrite it.
*/
+ IntLockSystemMessageQueue(OldIrql);
+
+ /*
+ * Bail out if the queue is full. FIXME: We should handle this case
+ * more gracefully.
+ */
+
+ if (SystemMessageQueueCount == SYSTEM_MESSAGE_QUEUE_SIZE)
+ {
+ IntUnLockSystemMessageQueue(OldIrql);
+ return;
+ }
if (Msg->message == WM_MOUSEMOVE && SystemMessageQueueCount)
{
@@ -623,7 +640,6 @@
{
PUSER_MESSAGE UserMsg;
MSG Msg;
- BOOL ProcessMessage;
ASSERT(SystemMessageQueueHead < SYSTEM_MESSAGE_QUEUE_SIZE);
Msg = SystemMessageQueue[SystemMessageQueueHead];
@@ -631,48 +647,14 @@
(SystemMessageQueueHead + 1) % SYSTEM_MESSAGE_QUEUE_SIZE;
SystemMessageQueueCount--;
IntUnLockSystemMessageQueue(OldIrql);
- if (WM_MOUSEFIRST <= Msg.message && Msg.message <= WM_MOUSELAST)
- {
- MSLLHOOKSTRUCT MouseHookData;
-
- MouseHookData.pt.x = LOWORD(Msg.lParam);
- MouseHookData.pt.y = HIWORD(Msg.lParam);
- switch(Msg.message)
- {
- case WM_MOUSEWHEEL:
- MouseHookData.mouseData = MAKELONG(0,
GET_WHEEL_DELTA_WPARAM(Msg.wParam));
- break;
- case WM_XBUTTONDOWN:
- case WM_XBUTTONUP:
- case WM_XBUTTONDBLCLK:
- case WM_NCXBUTTONDOWN:
- case WM_NCXBUTTONUP:
- case WM_NCXBUTTONDBLCLK:
- MouseHookData.mouseData = MAKELONG(0, HIWORD(Msg.wParam));
- break;
- default:
- MouseHookData.mouseData = 0;
- break;
- }
- MouseHookData.flags = 0;
- MouseHookData.time = Msg.time;
- MouseHookData.dwExtraInfo = 0;
- ProcessMessage = (0 == co_HOOK_CallHooks(WH_MOUSE_LL, HC_ACTION,
- Msg.message, (LPARAM) &MouseHookData));
- }
- else
- {
- ProcessMessage = TRUE;
- }
- if (ProcessMessage)
- {
- UserMsg = ExAllocateFromPagedLookasideList(&MessageLookasideList);
- /* What to do if out of memory? For now we just panic a bit in debug */
- ASSERT(UserMsg);
- UserMsg->FreeLParam = FALSE;
- UserMsg->Msg = Msg;
- InsertTailList(&HardwareMessageQueueHead, &UserMsg->ListEntry);
- }
+
+ UserMsg = ExAllocateFromPagedLookasideList(&MessageLookasideList);
+ /* What to do if out of memory? For now we just panic a bit in debug */
+ ASSERT(UserMsg);
+ UserMsg->FreeLParam = FALSE;
+ UserMsg->Msg = Msg;
+ InsertTailList(&HardwareMessageQueueHead, &UserMsg->ListEntry);
+
IntLockSystemMessageQueue(OldIrql);
}
HardwareMessageQueueStamp++;
@@ -767,7 +749,6 @@
MSG Msg;
LARGE_INTEGER LargeTickCount;
KBDLLHOOKSTRUCT KbdHookData;
- EVENTMSG Event;
BOOLEAN Entered = FALSE;
DPRINT("MsqPostKeyboardMessage(uMsg 0x%x, wParam 0x%x, lParam 0x%x)\n",
@@ -794,14 +775,6 @@
KeQueryTickCount(&LargeTickCount);
Msg.time = MsqCalculateMessageTime(&LargeTickCount);
-
- Event.message = Msg.message;
- Event.hwnd = Msg.hwnd;
- Event.time = Msg.time;
- Event.paramL = (Msg.wParam & 0xFF) | (HIWORD(Msg.lParam) << 8);
- Event.paramH = Msg.lParam & 0x7FFF;
- if (HIWORD(Msg.lParam) & 0x0100) Event.paramH |= 0x8000;
- co_HOOK_CallHooks( WH_JOURNALRECORD, HC_ACTION, 0, (LPARAM)&Event);
/* We can't get the Msg.pt point here since we don't know thread
(and thus the window station) the message will end up in yet. */
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