New script: control_interface . Simply prints out the name of the

control interface for this node.

tmcd/freebsd/GNUmakefile.in

@@ -55,6 +55,7 @@ script-install:	dir-install
 		/etc/dhclient-exit-hooks
 	$(INSTALL) -m 755 $(SRCDIR)/nodetype /etc/testbed/nodetype
 	$(INSTALL) -m 755 $(SRCDIR)/cpuspeed.awk /etc/testbed/cpuspeed.awk
+	$(INSTALL) -m 755 $(SRCDIR)/control_interface /etc/testbed/control_interface
 	$(INSTALL) -m 755 $(SRCDIR)/start_if.fxp0 /etc/start_if.fxp0
 	$(INSTALL) -m 755 $(SRCDIR)/start_if.fxp4 /etc/start_if.fxp4
 	$(INSTALL) -m 755 $(SRCDIR)/start_if.xl0 /etc/start_if.xl0

tmcd/freebsd/control_interface

+#!/bin/sh
+
+NODETYPE=`/etc/testbed/nodetype`
+
+if [ $NODETYPE = 'pc600' ]; then
+    echo 'fxp4'
+elif [ $NODETYPE = 'pc850' ]; then
+    echo 'fxp0'
+elif [ $NODETYPE = 'pc1500' ]; then
+    echo 'xl0'
+fi