Add sitevar to indicate that control network firewalls are supported.

sql/sitevars-create.sql

@@ -175,6 +175,7 @@ INSERT INTO sitevariables VALUES ('reload/warnonretry',NULL,'1','If non-zero sen
 INSERT INTO sitevariables VALUES ('reload/hwdownaction',NULL,'nothing','What to do when nodes are moved to hwdown. One of: poweroff, adminmode, or nothing.',0);
 INSERT INTO sitevariables VALUES ('general/architecture_priority',NULL,'x86_64,aarch64','Default mapper ordering for multi architecture testbeds.',0);
 INSERT INTO sitevariables VALUES ('general/admission_control','0','0','When set, refuse node allocation if reservation admission control fails.',0);
+INSERT INTO sitevariables VALUES ('general/cnet_firewalls','0','0','When set, control network firewalls are supported via control network vlans.',0);
 
 /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
 

sql/updates/4/567

+#
+# Add sitevariable that says control network firewalls supported
+#
+use strict;
+use libdb;
+
+sub DoUpdate($$$)
+{
+    my ($dbhandle, $dbname, $version) = @_;
+    
+    DBQueryFatal("INSERT INTO `sitevariables` VALUES ".
+		 "('general/cnet_firewalls','0','0', ".
+		 " 'When set, control network firewalls are supported via ".
+		 "control network vlans.',0)")
+	if (!TBSiteVarExists("general/cnet_firewalls"));
+    return 0;
+}
+
+1;
+
+# Local Variables:
+# mode:perl
+# End:
+