ntdll: Mark native subsystem images as such, don't allow to execute a driver

[Paul Chitescu]

Changelog: ntdll: Mark native subsystem images as such, don't allow to execute 
a driver.

Identifying native images is also the first step in implementing loading of 
drivers.
-------------- next part --------------
--- ./dlls/ntdll/loader.c.orig	7 Dec 2006 20:24:35 -0000	1.144
+++ ./dlls/ntdll/loader.c	14 Dec 2006 19:46:49 -0000
@@ -656,6 +656,11 @@
     else p = wm->ldr.FullDllName.Buffer;
     RtlInitUnicodeString( &wm->ldr.BaseDllName, p );
 
+    if (nt->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_NATIVE)
+    {
+        wm->ldr.Flags |= LDR_IMAGE_IS_NATIVE;
+    }
+
     if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
     {
         wm->ldr.Flags |= LDR_IMAGE_IS_DLL;
@@ -2123,9 +2128,9 @@
     /* allocate the modref for the main exe (if not already done) */
     wm = get_modref( peb->ImageBaseAddress );
     assert( wm );
-    if (wm->ldr.Flags & LDR_IMAGE_IS_DLL)
+    if (wm->ldr.Flags & (LDR_IMAGE_IS_DLL|LDR_IMAGE_IS_NATIVE))
     {
-        ERR("%s is a dll, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
+        ERR("%s is a dll or driver, not an executable\n", debugstr_w(wm->ldr.FullDllName.Buffer) );
         exit(1);
     }
     wm->ldr.LoadCount = -1;  /* can't unload main exe */
--- ./include/winternl.h.orig	13 Dec 2006 16:04:27 -0000	1.189
+++ ./include/winternl.h	14 Dec 2006 19:46:53 -0000
@@ -2334,6 +2335,7 @@
 #define LDR_MODULE_REBASED              0x00200000
 
 /* these ones is Wine specific */
+#define LDR_IMAGE_IS_NATIVE             0x20000000
 #define LDR_DONT_RESOLVE_REFS           0x40000000
 #define LDR_WINE_INTERNAL               0x80000000