From: Colin Finck <colin@reactos.org>
Date: Wed, 10 Jan 2018 08:24:22 +0000 (+0100)
Subject: [KERNEL32] Accept all images for NT 3.1 and higher instead of bailing out at image... 
X-Git-Tag: 0.4.9-dev~424
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=63a3a2cbb8d67c1afe8b283880e75e0e5b5bed01

[KERNEL32] Accept all images for NT 3.1 and higher instead of bailing out at image versions > 5.01 (#273)

Print a debug message whenever an application newer than ReactOS' internal NT version is started.
This gets a simple "Hello World" compiled by VS' 2017 regular "v141" toolchain to run under ReactOS.

Please retry NT6+ applications!
---

diff --git a/dll/win32/kernel32/client/proc.c b/dll/win32/kernel32/client/proc.c
index 3caf28e3c35..649dcd4f410 100644
--- a/dll/win32/kernel32/client/proc.c
+++ b/dll/win32/kernel32/client/proc.c
@@ -123,13 +123,25 @@ WINAPI
 BasepIsImageVersionOk(IN ULONG ImageMajorVersion,
                       IN ULONG ImageMinorVersion)
 {
-    /* Accept images for NT 3.1 or higher, as long as they're not newer than us */
-    return ((ImageMajorVersion >= 3) &&
-            ((ImageMajorVersion != 3) ||
-             (ImageMinorVersion >= 10)) &&
-            (ImageMajorVersion <= SharedUserData->NtMajorVersion) &&
-            ((ImageMajorVersion != SharedUserData->NtMajorVersion) ||
-             (ImageMinorVersion <= SharedUserData->NtMinorVersion)));
+    /* Accept images for NT 3.1 or higher */
+    if (ImageMajorVersion > 3 ||
+        (ImageMajorVersion == 3 && ImageMinorVersion >= 10))
+    {
+        /* ReactOS-specific: Accept images even if they are newer than our internal NT version. */
+        if (ImageMajorVersion > SharedUserData->NtMajorVersion ||
+            (ImageMajorVersion == SharedUserData->NtMajorVersion && ImageMinorVersion > SharedUserData->NtMinorVersion))
+        {
+            DPRINT1("Accepting image version %lu.%lu, although ReactOS is an NT %hu.%hu OS!\n",
+                ImageMajorVersion,
+                ImageMinorVersion,
+                SharedUserData->NtMajorVersion,
+                SharedUserData->NtMinorVersion);
+        }
+
+        return TRUE;
+    }
+
+    return FALSE;
 }
 
 NTSTATUS