From f72b55e4f9c5e9dbcd475d9f635a641cd49acd02 Mon Sep 17 00:00:00 2001
From: short <>
Date: Wed, 30 Apr 2003 05:57:35 +0000
Subject: [PATCH] NtSetInformationFile()/FileRenameInformation:   Compatibility
 with ntfs.sys of NT-5.1sp1

---
 ntoskrnl/io/file.c | 81 +++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 62 insertions(+), 19 deletions(-)

diff --git a/ntoskrnl/io/file.c b/ntoskrnl/io/file.c
index e40bb09..5888a62 100644
--- a/ntoskrnl/io/file.c
+++ b/ntoskrnl/io/file.c
@@ -203,6 +203,10 @@ IoQueryFileInformation(IN PFILE_OBJECT FileObject,
 
 #endif /* LIBCAPTIVE */
 
+#define OBJ_KERNEL_HANDLE 0x00000200
+#define IO_FORCE_ACCESS_CHECK 0x1
+#define IO_NO_PARAMETER_CHECKING 0x100
+
 NTSTATUS STDCALL
 NtSetInformationFile(HANDLE FileHandle,
 		     PIO_STATUS_BLOCK IoStatusBlock,
@@ -218,6 +222,7 @@ NtSetInformationFile(HANDLE FileHandle,
    PVOID SystemBuffer;
    IO_STATUS_BLOCK IoSB;
    FILE_OBJECT *RootDir_FileObject = NULL;
+   HANDLE RootDir_FileHandle;
    
    assert(IoStatusBlock != NULL)
    assert(FileInformation != NULL)
@@ -282,27 +287,62 @@ NtSetInformationFile(HANDLE FileHandle,
      FileInformationClass;
    switch (FileInformationClass)
      {
-       case FileRenameInformation:
-         if (!((FILE_RENAME_INFORMATION *)FileInformation)->RootDir)
-	   StackPtr->Parameters.SetFile.FileObject=NULL;
-	 else
+       case FileRenameInformation: {
+FILE_RENAME_INFORMATION *RenameInformation=(FILE_RENAME_INFORMATION *)FileInformation;
+OBJECT_ATTRIBUTES file_ObjectAttributes;
+UNICODE_STRING file_ObjectAttributes_ObjectName_UnicodeString;
+IO_STATUS_BLOCK file_IoStatusBlock;
+
+	 /* Create target 'StackPtr->Parameters.SetFile.FileObject'
+	  * by a special way below to open the target directory
+	  * from the given full pathname by 'SL_OPEN_TARGET_DIRECTORY'.
+	  */
+	 RtlInitUnicodeString(&file_ObjectAttributes_ObjectName_UnicodeString, RenameInformation->FileName);
+	 InitializeObjectAttributes(
+	     &file_ObjectAttributes,	/* InitializedAttributes */
+	     &file_ObjectAttributes_ObjectName_UnicodeString,	/* ObjectName */
+	     OBJ_KERNEL_HANDLE | (0/* FIXME: when to use it? */ ? 0x2000/* FIXME: meaning? */ : 0),	/* Attributes */
+	     RenameInformation->RootDir,	/* RootDirectory */
+	     NULL);	/* SecurityDescriptor; ignored */
+	 Status=IoCreateFile(
+	     &RootDir_FileHandle,	/* FileHandle */
+	     FILE_ADD_FILE | 0x100000/* FIXME: meaning? */,	/* DesiredAccess */
+	     &file_ObjectAttributes,	/* ObjectAttributes */
+	     &file_IoStatusBlock,	/* IoStatusBlock */
+	     NULL,	/* AllocationSize; ignored for open */
+	     0,	/* FileAttributes; ignored for open */
+	     FILE_SHARE_READ|FILE_SHARE_WRITE,	/* ShareAccess; 0 means exclusive */
+	     FILE_OPEN,	/* CreateDisposition */
+	     FILE_OPEN_FOR_BACKUP_INTENT/* FIXME: why? meaning? */,	/* CreateOptions */
+	     NULL,	/* EaBuffer */
+	     0,	/* EaLength */
+	     CreateFileTypeNone,	/* CreateFileType */
+	     NULL,	/* ExtraCreateParameters */
+	     IO_NO_PARAMETER_CHECKING|IO_FORCE_ACCESS_CHECK|SL_OPEN_TARGET_DIRECTORY);	/* Options */
+	 if (!NT_SUCCESS(Status))
 	   {
-	     /*  Get the file object from the file handle  */
-	     Status = ObReferenceObjectByHandle(((FILE_RENAME_INFORMATION *)FileInformation)->RootDir,
-						(FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY),
-						IoFileObjectType,
-						KernelMode,	/* FIXME: or UserMode ? */
-						(PVOID *)&RootDir_FileObject,
-						NULL);
-	     if (!NT_SUCCESS(Status))
-	       {
-		  return Status;
-	       }
-	     StackPtr->Parameters.SetFile.FileObject=RootDir_FileObject;
+	      return Status;
 	   }
-	 StackPtr->Parameters.SetFile.u.d.ReplaceIfExists=((FILE_RENAME_INFORMATION *)FileInformation)->Replace;
+
+	 /*  Get the file object from the file handle  */
+	 Status = ObReferenceObjectByHandle(RootDir_FileHandle,
+	       			     (FILE_ADD_FILE | (0/* FIXME: when? */ ? FILE_ADD_SUBDIRECTORY : 0)),
+	       			     IoFileObjectType,
+	       			     KernelMode,
+	       			     (PVOID *)&RootDir_FileObject,
+	       			     NULL);
+	 if (!NT_SUCCESS(Status))
+	   {
+	      NtClose(RootDir_FileHandle);	/* errors ignored */
+	      return Status;
+	   }
+	 /* 'StackPtr->FileObject' should be the source file,
+	  * 'StackPtr->Parameters.SetFile.FileObject' should be the target directory.
+	  */
+	 StackPtr->Parameters.SetFile.FileObject=RootDir_FileObject;
+	 StackPtr->Parameters.SetFile.u.d.ReplaceIfExists=RenameInformation->Replace;
 	 StackPtr->Parameters.SetFile.u.d.AdvanceOnly=FALSE;
-	 break;
+	 } break;
        default:;
      }
    
@@ -327,7 +367,10 @@ NtSetInformationFile(HANDLE FileHandle,
        *IoStatusBlock = IoSB;
      }
    if (RootDir_FileObject != NULL)
-     ObDereferenceObject(RootDir_FileObject);
+     {
+       NtClose(RootDir_FileHandle);	/* errors ignored */
+       ObDereferenceObject(RootDir_FileObject);
+     }
    ExFreePool(SystemBuffer);
  
    return Status;
-- 
1.8.3.1