[ion] 59909: [NTOSKRNL]: Forcefully set IMAGE_DLLCHARACTERISTICS_NO_ISOLATION on all images. See comment for more information. Windows' kernel32.dll now beautifully loads to the ReactOS winlogon sc...

Author: ion
Date: Fri Aug 30 19:54:44 2013
New Revision: 59909

URL: http://svn.reactos.org/svn/reactos?rev=59909&view=rev
Log:
[NTOSKRNL]: Forcefully set IMAGE_DLLCHARACTERISTICS_NO_ISOLATION on all images. See
comment for more information. Windows' kernel32.dll now beautifully loads to the
ReactOS winlogon screen (which nobody should ever see -- it's being shown because
RtlDefaultNpAcl is not implemented in ReactOS, and thus all named pipes die (SCM, etc...)

Modified:
    trunk/reactos/ntoskrnl/mm/section.c

Modified: trunk/reactos/ntoskrnl/mm/section.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/section.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/section.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/section.c	[iso-8859-1] Fri Aug 30 19:54:44 2013
@@ -437,7 +437,22 @@
                 ImageSectionObject->ImageInformation.LoaderFlags =
piohOptHeader->LoaderFlags;
 
             if (RTL_CONTAINS_FIELD(piohOptHeader, cbOptHeaderSize, DllCharacteristics))
+            {
                 ImageSectionObject->ImageInformation.DllCharacteristics =
piohOptHeader->DllCharacteristics;
+
+                /*
+                 * Since we don't really implement SxS yet and LD doesn't supoprt
/ALLOWISOLATION:NO, hard-code
+                 * this flag here, which will prevent the loader and other code from
doing any .manifest or SxS
+                 * magic to any binary.
+                 *
+                 * This will break applications that depend on SxS when running with real
Windows Kernel32/SxS/etc
+                 * but honestly that's not tested. It will also break them when
running no ReactOS once we implement
+                 * the SxS support -- at which point, duh, this should be removed.
+                 *
+                 * But right now, any app depending on SxS is already broken anyway, so
this flag only helps.
+                 */
+                ImageSectionObject->ImageInformation.DllCharacteristics |=
IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
+            }
 
             break;
         }