dsdb/common: add dsdb_dc_functional_level() helper

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>

diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
index 9b4afa452153db65d4b774cbdda79ed385d38bd4..5da75f2d28f48018153d2f66cbdcbbecc9001bf1 100644 (file)
--- a/source4/dsdb/common/util.c
+++ b/source4/dsdb/common/util.c
@@ -3841,6 +3841,21 @@ int dsdb_forest_functional_level(struct ldb_context *ldb)
        return *forestFunctionality;
 }
 
+/*
+ * This detects and returns the DC functional level (DS_DOMAIN_FUNCTION_*)
+ */
+int dsdb_dc_functional_level(struct ldb_context *ldb)
+{
+       int *dcFunctionality =
+               talloc_get_type(ldb_get_opaque(ldb, "domainFunctionality"), int);
+       if (!dcFunctionality) {
+               /* this is expected during initial provision */
+               DEBUG(4,(__location__ ": WARNING: domainControllerFunctionality not setup\n"));
+               return DS_DOMAIN_FUNCTION_2008_R2;
+       }
+       return *dcFunctionality;
+}
+
 /*
   set a GUID in an extended DN structure
  */