[ekohl] 67998: [FASTFAT] Add IRP_MJ_QUERY_VOLUME_INFORMATION.FileFsFullSizeInformation. This fixes a number of ntdll winetests.

Author: ekohl
Date: Tue Jun  2 09:08:33 2015
New Revision: 67998

URL: http://svn.reactos.org/svn/reactos?rev=67998&view=rev
Log:
[FASTFAT]
Add IRP_MJ_QUERY_VOLUME_INFORMATION.FileFsFullSizeInformation. This fixes a number of ntdll winetests.

Modified:
    trunk/reactos/drivers/filesystems/fastfat/volume.c

Modified: trunk/reactos/drivers/filesystems/fastfat/volume.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfat...
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/volume.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/volume.c	[iso-8859-1] Tue Jun  2 09:08:33 2015
@@ -177,6 +177,38 @@
     DPRINT("BufferLength %lu\n", *BufferLength);

return STATUS_SUCCESS;
+}
+
+
+static
+NTSTATUS
+FsdGetFsFullSizeInformation(
+    PDEVICE_OBJECT DeviceObject,
+    PFILE_FS_FULL_SIZE_INFORMATION FsSizeInfo,
+    PULONG BufferLength)
+{
+    PDEVICE_EXTENSION DeviceExt;
+    NTSTATUS Status;
+
+    DPRINT("FsdGetFsFullSizeInformation()\n");
+    DPRINT("FsSizeInfo = %p\n", FsSizeInfo);
+
+    if (*BufferLength < sizeof(FILE_FS_FULL_SIZE_INFORMATION))
+        return STATUS_BUFFER_OVERFLOW;
+
+    DeviceExt = DeviceObject->DeviceExtension;
+    Status = CountAvailableClusters(DeviceExt, &FsSizeInfo->CallerAvailableAllocationUnits);
+
+    FsSizeInfo->TotalAllocationUnits.QuadPart = DeviceExt->FatInfo.NumberOfClusters;
+    FsSizeInfo->ActualAvailableAllocationUnits.QuadPart = FsSizeInfo->CallerAvailableAllocationUnits.QuadPart;
+    FsSizeInfo->SectorsPerAllocationUnit = DeviceExt->FatInfo.SectorsPerCluster;
+    FsSizeInfo->BytesPerSector = DeviceExt->FatInfo.BytesPerSector;
+
+    DPRINT("Finished FsdGetFsFullSizeInformation()\n");
+    if (NT_SUCCESS(Status))
+        *BufferLength -= sizeof(FILE_FS_FULL_SIZE_INFORMATION);
+
+    return Status;
 }

@@ -401,6 +433,12 @@
                                            &BufferLength);
             break;

+        case FileFsFullSizeInformation:
+            RC = FsdGetFsFullSizeInformation(IrpContext->DeviceObject,
+                                             SystemBuffer,
+                                             &BufferLength);
+            break;
+
         default:
             RC = STATUS_NOT_SUPPORTED;
     }