From 0e6151383411d7bb002280bcb1d3c366665e97fc Mon Sep 17 00:00:00 2001
From: short <>
Date: Fri, 4 Apr 2003 21:36:07 +0000
Subject: [PATCH] IopCreateFile(): Fix semantics of volume mounting (Vpb vs.
 Device etc.)

---
 ntoskrnl/io/create.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/ntoskrnl/io/create.c b/ntoskrnl/io/create.c
index 83e1941..cf0553d 100644
--- a/ntoskrnl/io/create.c
+++ b/ntoskrnl/io/create.c
@@ -114,6 +114,7 @@ IopCreateFile(PVOID			ObjectBody,
       FileObject->Flags = FileObject->Flags | FO_DIRECT_DEVICE_OPEN;
       FileObject->FileName.Buffer = 0;
       FileObject->FileName.Length = FileObject->FileName.MaximumLength = 0;
+      FileObject->Vpb = DeviceObject->Vpb;
     }
   else
     {
@@ -126,6 +127,7 @@ IopCreateFile(PVOID			ObjectBody,
 	  && (DeviceObject->DeviceType != FILE_DEVICE_MAILSLOT))
 	{
 	  CPRINT("Device was wrong type\n");
+	  KeBugCheck(0);
 	  return(STATUS_UNSUCCESSFUL);
 	}
 
@@ -144,12 +146,20 @@ IopCreateFile(PVOID			ObjectBody,
 			 Status);
 		  return(Status);
 		}
+	      if (!DeviceObject->Vpb)
+		KeBugCheck(0);
+	      if (DeviceObject->Vpb->DeviceObject->Vpb)
+		KeBugCheck(0);
+	      DeviceObject->Vpb->DeviceObject->Vpb=DeviceObject->Vpb;
+	      DeviceObject->Vpb->Flags |= VPB_MOUNTED;
 	    }
+
 	  DeviceObject = DeviceObject->Vpb->DeviceObject;
 	  DPRINT("FsDeviceObject %lx\n", DeviceObject);
 	}
       RtlCreateUnicodeString(&(FileObject->FileName),
 			     RemainingPath);
+      FileObject->Vpb = NULL;
     }
 
   DPRINT("FileObject->FileName %wZ\n",
@@ -158,7 +168,6 @@ IopCreateFile(PVOID			ObjectBody,
   DPRINT("FileObject %x DeviceObject %x\n",
 	 FileObject,
 	 DeviceObject);
-  FileObject->Vpb = DeviceObject->Vpb;
   FileObject->Type = InternalFileType;
   FileObject->RelatedFileObject = NULL;
 
-- 
1.8.3.1