[ekohl] 66319: [NTOSKRNL] NtQueryInformationFile: Implement the FileModeInformation case according to 'File System Internals' page 485.

Author: ekohl
Date: Mon Feb 16 15:33:34 2015
New Revision: 66319

URL: http://svn.reactos.org/svn/reactos?rev=66319&view=rev
Log:
[NTOSKRNL]
NtQueryInformationFile: Implement the FileModeInformation case according to 'File System Internals' page 485.

Modified:
    trunk/reactos/ntoskrnl/io/iomgr/iofunc.c

Modified: trunk/reactos/ntoskrnl/io/iomgr/iofunc.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/iofunc.c?...
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/iofunc.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/iofunc.c	[iso-8859-1] Mon Feb 16 15:33:34 2015
@@ -863,6 +863,35 @@
     *Handle = TargetHandle;

return STATUS_SUCCESS;
+}
+
+static
+ULONG
+IopGetFileMode(IN PFILE_OBJECT FileObject)
+{
+    ULONG Mode = 0;
+
+    if (FileObject->Flags & FO_WRITE_THROUGH)
+        Mode |= FILE_WRITE_THROUGH;
+
+    if (FileObject->Flags & FO_SEQUENTIAL_ONLY)
+        Mode |= FILE_SEQUENTIAL_ONLY;
+
+    if (FileObject->Flags & FO_NO_INTERMEDIATE_BUFFERING)
+        Mode |= FILE_NO_INTERMEDIATE_BUFFERING;
+
+    if (FileObject->Flags & FO_SYNCHRONOUS_IO)
+    {
+        if (FileObject->Flags & FO_ALERTABLE_IO)
+            Mode |= FILE_SYNCHRONOUS_IO_ALERT;
+        else
+            Mode |= FILE_SYNCHRONOUS_IO_NONALERT;
+    }
+
+    if (FileObject->Flags & FO_DELETE_ON_CLOSE)
+        Mode |= FILE_DELETE_ON_CLOSE;
+
+    return Mode;
 }

/* PUBLIC FUNCTIONS **********************************************************/
@@ -1865,6 +1894,7 @@
     IO_STATUS_BLOCK KernelIosb;
     BOOLEAN CallDriver = TRUE;
     PFILE_ACCESS_INFORMATION AccessBuffer;
+    PFILE_MODE_INFORMATION ModeBuffer;
     PFILE_ALIGNMENT_INFORMATION AlignmentBuffer;
     PAGED_CODE();
     IOTRACE(IO_API_DEBUG, "FileHandle: %p\n", FileHandle);
@@ -2053,6 +2083,13 @@
         AccessBuffer = Irp->AssociatedIrp.SystemBuffer;
         AccessBuffer->AccessFlags = HandleInformation.GrantedAccess;
         Irp->IoStatus.Information = sizeof(FILE_ACCESS_INFORMATION);
+        CallDriver = FALSE;
+    }
+    else if (FileInformationClass == FileModeInformation)
+    {
+        ModeBuffer = Irp->AssociatedIrp.SystemBuffer;
+        ModeBuffer->Mode = IopGetFileMode(FileObject);
+        Irp->IoStatus.Information = sizeof(FILE_MODE_INFORMATION);
         CallDriver = FALSE;
     }
     else if (FileInformationClass == FileAlignmentInformation)