[ion] 25945: - Rewrite a dirty, reverse-engineered function written by dwelch (David Welch) 7.1 years ago in revision 965. We must agressively continue to hunt down such reversed code by previously tainted ReactOS developers who have thankfully left/been kicked out since then.

Author: ion
Date: Fri Mar  2 10:37:45 2007
New Revision: 25945

URL: http://svn.reactos.org/svn/reactos?rev=25945&view=rev
Log:
- Rewrite a dirty, reverse-engineered function written by dwelch (David Welch) 7.1 years
ago in revision 965. We must agressively continue to hunt down such reversed code by
previously tainted ReactOS developers who have thankfully left/been kicked out since
then.

Modified:
    trunk/reactos/ntoskrnl/se/token.c

Modified: trunk/reactos/ntoskrnl/se/token.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/se/token.c?rev=25…
==============================================================================
--- trunk/reactos/ntoskrnl/se/token.c (original)
+++ trunk/reactos/ntoskrnl/se/token.c Fri Mar  2 10:37:45 2007
@@ -444,94 +444,77 @@
 /*
  * @implemented
  */
-NTSTATUS STDCALL
-SeCreateClientSecurity(IN struct _ETHREAD *Thread,
-		       IN PSECURITY_QUALITY_OF_SERVICE Qos,
-		       IN BOOLEAN RemoteClient,
-		       OUT PSECURITY_CLIENT_CONTEXT ClientContext)
-{
-   TOKEN_TYPE TokenType;
-   UCHAR b;
-   SECURITY_IMPERSONATION_LEVEL ImpersonationLevel;
-   PACCESS_TOKEN Token;
-   ULONG g;
-   PACCESS_TOKEN NewToken;
-
-   PAGED_CODE();
-
-   Token = PsReferenceEffectiveToken(Thread,
-				     &TokenType,
-				     &b,
-				     &ImpersonationLevel);
-   if (TokenType != TokenImpersonation)
-     {
-	ClientContext->DirectAccessEffectiveOnly = Qos->EffectiveOnly;
-     }
-   else
-     {
-	if (Qos->ImpersonationLevel > ImpersonationLevel)
-	  {
-	     if (Token != NULL)
-	       {
-		  ObDereferenceObject(Token);
-	       }
-	     return(STATUS_UNSUCCESSFUL);
-	  }
-	if (ImpersonationLevel == SecurityAnonymous ||
-	    ImpersonationLevel == SecurityIdentification ||
-	    (RemoteClient != FALSE && ImpersonationLevel != SecurityDelegation))
-	  {
-	     if (Token != NULL)
-	       {
-		  ObDereferenceObject(Token);
-	       }
-	     return(STATUS_UNSUCCESSFUL);
-	  }
-	if (b != 0 ||
-	    Qos->EffectiveOnly != 0)
-	  {
-	     ClientContext->DirectAccessEffectiveOnly = TRUE;
-	  }
-	else
-	  {
-	     ClientContext->DirectAccessEffectiveOnly = FALSE;
-	  }
-     }
-
-   if (Qos->ContextTrackingMode == 0)
-     {
-	ClientContext->DirectlyAccessClientToken = FALSE;
-	g = SeCopyClientToken(Token, ImpersonationLevel, 0, &NewToken);
-	if (g >= 0)
-	  {
-//	     ObDeleteCapturedInsertInfo(NewToken);
-	  }
-	if (TokenType == TokenPrimary || Token != NULL)
-	  {
-	     ObDereferenceObject(Token);
-	  }
-	if (g < 0)
-	  {
-	     return(g);
-	  }
-    }
-  else
-    {
-	ClientContext->DirectlyAccessClientToken = TRUE;
-	if (RemoteClient != FALSE)
-	  {
-//	     SeGetTokenControlInformation(Token, &ClientContext->Unknown11);
-	  }
-	NewToken = Token;
-    }
-  ClientContext->SecurityQos.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
-  ClientContext->SecurityQos.ImpersonationLevel = Qos->ImpersonationLevel;
-  ClientContext->SecurityQos.ContextTrackingMode = Qos->ContextTrackingMode;
-  ClientContext->SecurityQos.EffectiveOnly = Qos->EffectiveOnly;
-  ClientContext->ServerIsRemote = RemoteClient;
-  ClientContext->ClientToken = NewToken;
-
-  return(STATUS_SUCCESS);
+NTSTATUS
+NTAPI
+SeCreateClientSecurity(IN PETHREAD Thread,
+                       IN PSECURITY_QUALITY_OF_SERVICE Qos,
+                       IN BOOLEAN RemoteClient,
+                       OUT PSECURITY_CLIENT_CONTEXT ClientContext)
+{
+    TOKEN_TYPE TokenType;
+    BOOLEAN ThreadEffectiveOnly;
+    SECURITY_IMPERSONATION_LEVEL ImpersonationLevel;
+    PACCESS_TOKEN Token;
+    NTSTATUS Status;
+    PACCESS_TOKEN NewToken;
+    PAGED_CODE();
+
+    Token = PsReferenceEffectiveToken(Thread,
+                                      &TokenType,
+                                      &ThreadEffectiveOnly,
+                                      &ImpersonationLevel);
+    if (TokenType != TokenImpersonation)
+    {
+        ClientContext->DirectAccessEffectiveOnly = Qos->EffectiveOnly;
+    }
+    else
+    {
+        if (Qos->ImpersonationLevel > ImpersonationLevel)
+        {
+            if (Token) ObDereferenceObject(Token);
+            return STATUS_BAD_IMPERSONATION_LEVEL;
+        }
+
+        if ((ImpersonationLevel == SecurityAnonymous) ||
+            (ImpersonationLevel == SecurityIdentification) ||
+            ((RemoteClient) && (ImpersonationLevel != SecurityDelegation)))
+        {
+            if (Token) ObDereferenceObject(Token);
+            return STATUS_BAD_IMPERSONATION_LEVEL;
+        }
+
+        ClientContext->DirectAccessEffectiveOnly = ((ThreadEffectiveOnly) ||
+                                                    (Qos->EffectiveOnly)) ?
+                                                    TRUE : FALSE;
+    }
+
+    if (Qos->ContextTrackingMode == SECURITY_STATIC_TRACKING)
+    {
+        ClientContext->DirectlyAccessClientToken = FALSE;
+        Status = SeCopyClientToken(Token, ImpersonationLevel, 0, &NewToken);
+        if (!NT_SUCCESS(Status)) return Status;
+    }
+    else
+    {
+        ClientContext->DirectlyAccessClientToken = TRUE;
+        if (RemoteClient != FALSE)
+        {
+#if 0
+            SeGetTokenControlInformation(Token,
+                                         &ClientContext->ClientTokenControl);
+#endif
+        }
+
+        NewToken = Token;
+    }
+
+    ClientContext->SecurityQos.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
+    ClientContext->SecurityQos.ImpersonationLevel = Qos->ImpersonationLevel;
+    ClientContext->SecurityQos.ContextTrackingMode = Qos->ContextTrackingMode;
+    ClientContext->SecurityQos.EffectiveOnly = Qos->EffectiveOnly;
+    ClientContext->ServerIsRemote = RemoteClient;
+    ClientContext->ClientToken = NewToken;
+    return STATUS_SUCCESS;
 }
 
 /*