[pschweitzer] 70750: [NTFS] Cowardly refuse to continue processing (enumerating/reading) when stumbling upon a compressed entry. This avoids infinite loops when enumerating, incorrect files content...

Author: pschweitzer
Date: Sun Feb 14 22:44:54 2016
New Revision: 70750

URL: http://svn.reactos.org/svn/reactos?rev=70750&view=rev
Log:
[NTFS]
Cowardly refuse to continue processing (enumerating/reading) when stumbling upon a compressed entry.
This avoids infinite loops when enumerating, incorrect files contents when reading.

CORE-10814 #resolve #comment 'Fixed' with r70750

Modified:
    trunk/reactos/drivers/filesystems/ntfs/dirctl.c
    trunk/reactos/drivers/filesystems/ntfs/fcb.c
    trunk/reactos/drivers/filesystems/ntfs/ntfs.h
    trunk/reactos/drivers/filesystems/ntfs/rw.c

Modified: trunk/reactos/drivers/filesystems/ntfs/dirctl.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/di...
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/dirctl.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/dirctl.c	[iso-8859-1] Sun Feb 14 22:44:54 2016
@@ -298,6 +298,13 @@
     FileInformationClass = Stack->Parameters.QueryDirectory.FileInformationClass;
     FileIndex = Stack->Parameters.QueryDirectory.FileIndex;

+    if (NtfsFCBIsCompressed(Fcb))
+    {
+        DPRINT1("Compressed directory!\n");
+        UNIMPLEMENTED;
+        return STATUS_NOT_IMPLEMENTED;
+    }
+
     if (SearchPattern != NULL)
     {
         if (!Ccb->DirectorySearchPattern)

Modified: trunk/reactos/drivers/filesystems/ntfs/fcb.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/fc...
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/fcb.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/fcb.c	[iso-8859-1] Sun Feb 14 22:44:54 2016
@@ -138,6 +138,12 @@

BOOLEAN
+NtfsFCBIsCompressed(PNTFS_FCB Fcb)
+{
+    return ((Fcb->Entry.FileAttributes & NTFS_FILE_TYPE_COMPRESSED) == NTFS_FILE_TYPE_COMPRESSED); 
+}
+
+BOOLEAN
 NtfsFCBIsRoot(PNTFS_FCB Fcb)
 {
     return (wcscmp(Fcb->PathName, L"\") == 0);

Modified: trunk/reactos/drivers/filesystems/ntfs/ntfs.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/nt...
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/ntfs.h	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/ntfs.h	[iso-8859-1] Sun Feb 14 22:44:54 2016
@@ -643,6 +643,9 @@
 NtfsFCBIsReparsePoint(PNTFS_FCB Fcb);

BOOLEAN
+NtfsFCBIsCompressed(PNTFS_FCB Fcb);
+
+BOOLEAN
 NtfsFCBIsRoot(PNTFS_FCB Fcb);

VOID

Modified: trunk/reactos/drivers/filesystems/ntfs/rw.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/rw...
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/rw.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ntfs/rw.c	[iso-8859-1] Sun Feb 14 22:44:54 2016
@@ -71,6 +71,13 @@

Fcb = (PNTFS_FCB)FileObject->FsContext;

+    if (NtfsFCBIsCompressed(Fcb))
+    {
+        DPRINT1("Compressed file!\n");
+        UNIMPLEMENTED;
+        return STATUS_NOT_IMPLEMENTED;
+    }
+
     FileRecord = ExAllocatePoolWithTag(NonPagedPool, DeviceExt->NtfsInfo.BytesPerFileRecord, TAG_NTFS);
     if (FileRecord == NULL)
     {