wow64win: Add initial user callbacks support.

dlls/wow64win/syscall.c

@@ -53,6 +53,8 @@ SYSTEM_SERVICE_TABLE sdwhwin32 =
 
 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, void *reserved )
 {
-    if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
+    if (reason != DLL_PROCESS_ATTACH) return TRUE;
+    LdrDisableThreadCalloutsForDll( inst );
+    NtCurrentTeb()->Peb->KernelCallbackTable = user_callbacks;
     return TRUE;
 }

dlls/wow64win/user.c

@@ -189,6 +189,232 @@ static struct client_menu_name32 *client_menu_name_64to32( const struct client_m
     return name32;
 }
 
+static NTSTATUS dispatch_callback( ULONG id, void *args, ULONG len )
+{
+    void *ret_ptr;
+    ULONG ret_len;
+    NTSTATUS status = Wow64KiUserCallbackDispatcher( id, args, len, &ret_ptr, &ret_len );
+    return NtCallbackReturn( ret_ptr, ret_len, status );
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallEnumDisplayMonitor( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallSendAsyncCallback( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallWinEventHook( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallWinProc( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallWindowsHook( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCopyImage( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserDrawScrollBar( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserDrawText( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserFreeCachedClipboardData( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserImmProcessKey( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserImmTranslateMessage( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserInitBuiltinClasses( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserInitBuiltinClasses, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserLoadDriver( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserLoadDriver, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserLoadImage( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserLoadSysMenu( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserLoadSysMenu, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserPostDDEMessage( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserRenderSynthesizedFormat( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserRenderSynthesizedFormat, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserUnpackDDEMessage( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallFreeIcon( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserCallFreeIcon, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserThunkLock( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserThunkLock, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallVulkanDebugReportCallback( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserCallVulkanDebugUtilsCallback( void *arg, ULONG size )
+{
+    FIXME( "\n" );
+    return 0;
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst0( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 0, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst1( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 1, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst2( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 2, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst3( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 3, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst4( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 4, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst5( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 5, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst6( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 6, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst7( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 7, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst8( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 8, arg, size );
+}
+
+static NTSTATUS WINAPI wow64_NtUserDriverCallbackFirst9( void *arg, ULONG size )
+{
+    return dispatch_callback( NtUserDriverCallbackFirst + 9, arg, size );
+}
+
+user_callback user_callbacks[] =
+{
+    /* user32 callbacks */
+    wow64_NtUserCallEnumDisplayMonitor,
+    wow64_NtUserCallSendAsyncCallback,
+    wow64_NtUserCallWinEventHook,
+    wow64_NtUserCallWinProc,
+    wow64_NtUserCallWindowsHook,
+    wow64_NtUserCopyImage,
+    wow64_NtUserDrawScrollBar,
+    wow64_NtUserDrawText,
+    wow64_NtUserFreeCachedClipboardData,
+    wow64_NtUserImmProcessKey,
+    wow64_NtUserImmTranslateMessage,
+    wow64_NtUserInitBuiltinClasses,
+    wow64_NtUserLoadDriver,
+    wow64_NtUserLoadImage,
+    wow64_NtUserLoadSysMenu,
+    wow64_NtUserPostDDEMessage,
+    wow64_NtUserRenderSynthesizedFormat,
+    wow64_NtUserUnpackDDEMessage,
+    /* win16 hooks */
+    wow64_NtUserCallFreeIcon,
+    wow64_NtUserThunkLock,
+    /* Vulkan support */
+    wow64_NtUserCallVulkanDebugReportCallback,
+    wow64_NtUserCallVulkanDebugUtilsCallback,
+    /* Driver-specific callbacks */
+    wow64_NtUserDriverCallbackFirst0,
+    wow64_NtUserDriverCallbackFirst1,
+    wow64_NtUserDriverCallbackFirst2,
+    wow64_NtUserDriverCallbackFirst3,
+    wow64_NtUserDriverCallbackFirst4,
+    wow64_NtUserDriverCallbackFirst5,
+    wow64_NtUserDriverCallbackFirst6,
+    wow64_NtUserDriverCallbackFirst7,
+    wow64_NtUserDriverCallbackFirst8,
+    wow64_NtUserDriverCallbackFirst9,
+};
+
+C_ASSERT( ARRAYSIZE(user_callbacks) == NtUserCallCount );
+
 NTSTATUS WINAPI wow64_NtUserActivateKeyboardLayout( UINT *args )
 {
     HKL layout = get_handle( &args );

dlls/wow64win/wow64win_private.h

@@ -27,7 +27,12 @@
 ALL_WIN32_SYSCALLS
 #undef SYSCALL_ENTRY
 
+typedef NTSTATUS (WINAPI *user_callback)( void *params, ULONG size );
+extern user_callback user_callbacks[] DECLSPEC_HIDDEN;
+
 void * WINAPI Wow64AllocateTemp( SIZE_T size );
+NTSTATUS WINAPI Wow64KiUserCallbackDispatcher( ULONG id, void *args, ULONG len,
+                                               void **ret_ptr, ULONG *ret_len );
 
 struct object_attr64
 {

include/ntuser.h

@@ -54,7 +54,7 @@ enum
     NtUserCallVulkanDebugUtilsCallback,
     /* Driver-specific callbacks */
     NtUserDriverCallbackFirst,
-    NtUserDriverCallbackLast = NtUserDriverCallbackFirst + 10,
+    NtUserDriverCallbackLast = NtUserDriverCallbackFirst + 9,
     NtUserCallCount
 };