Add method to show configured mtu

1 files changed, 10 insertions, 1 deletions

diff --git a/scripts/vyatta-interfaces.pl b/scripts/vyatta-interfaces.pl
index 997230d..de5fa49 100755
--- a/scripts/vyatta-interfaces.pl
+++ b/scripts/vyatta-interfaces.pl
@@ -46,7 +46,7 @@ use warnings;
 my $dhcp_daemon = '/sbin/dhclient';
 
 my ($eth_update, $eth_delete, $addr, $dev, $mac, $mac_update, $op_dhclient);
-my ($check_name, $show_names, $intf_cli_path, $vif_name, $warn_name);
+my ($check_name, $show_names, $intf_cli_path, $vif_name, $warn_name, $show_mtu);
 
 sub usage {
     print "Usage: $0 --dev=<interface> --check=<type>\n";
@@ -55,6 +55,7 @@ sub usage {
     print "       $0 --dev=<interface> --eth-addr-update=<aa:aa:aa:aa:aa:aa>\n";
     print "       $0 --dev=<interface> --eth-addr-delete=<aa:aa:aa:aa:aa:aa>\n";
     print "       $0 --dev=<interface> --valid-addr={<a.b.c.d>|dhcp}\n";
+    print "       $0 --dev=<interface> --mtu\n";
     print "       $0 --show=<type>\n";
     exit 1;
 }
@@ -70,6 +71,7 @@ GetOptions("eth-addr-update=s" => \$eth_update,
 	   "show=s"	       => \$show_names,
 	   "vif=s"	       => \$vif_name,
 	   "warn"	       => \$warn_name,
+	   "mtu"	       => \$show_mtu,
 ) or usage();
 
 update_eth_addrs($eth_update, $dev)	if ($eth_update);
@@ -81,6 +83,7 @@ op_dhcp_command($op_dhclient, $dev)	if ($op_dhclient);
 is_valid_name($check_name, $dev)	if ($check_name);
 exists_name($dev)			if ($warn_name);
 show_interfaces($show_names)		if ($show_names);
+show_mtu($dev)	       			if ($show_mtu);
 exit 0;
 
 sub is_ip_configured {
@@ -152,6 +155,12 @@ sub get_mtu {
     return $intf->mtu();
 }
 
+sub show_mtu {
+    my $name = shift;
+    my $mtu = get_mtu($name);
+    print "$mtu\n" if $mtu;
+}
+
 sub dhcp_update_config {
     my ($conf_file, $intf) = @_;