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#!/usr/bin/perl
#
# Module: vyatta-show-interfaces.pl
#
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2008 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Stephen Hemminger
# Date: September 2008
# Description: Script to display bonding information
#
# **** End License ****
#
use Getopt::Long;
use strict;
use warnings;
sub usage {
print "Usage: $0 --brief\n";
print " $0 interface(s)\n";
exit 1;
}
sub get_sysfs_value {
my ( $intf, $name ) = @_;
open( my $statf, '<', "/sys/class/net/$intf/$name" )
or die "Can't open file /sys/class/net/$intf/$name";
my $value = <$statf>;
chomp $value if defined $value;
close $statf;
return $value;
}
sub get_state_link {
my $intf = shift;
my $state;
my $link = 'down';
my $flags = get_sysfs_value( $intf, 'flags' );
my $hex_flags = hex($flags);
if ( $hex_flags & 0x1 ) { # IFF_UP
$state = 'up';
my $carrier = get_sysfs_value( $intf, 'carrier' );
if ( $carrier eq '1' ) {
$link = "up";
}
}
else {
$state = 'down';
}
return ( $state, $link );
}
my @modes = ( "round-robin",
"active-backup",
"xor-hash",
"broadcast",
"802.3ad",
"transmit-load-balance",
"adaptive-load-balance"
);
sub show_brief {
my @interfaces = @_;
my $format = "%-12s %-22s %-8s %-6s %s\n";
printf $format, 'Interface', 'Mode', 'State', 'Link', 'Slaves';
foreach my $intf (sort @interfaces) {
die "Invalid bonding interface: $intf\n"
unless (-d "/sys/class/net/$intf/bonding" );
my $mode = get_sysfs_value( $intf, "bonding/mode" );
my ( $name, $num ) = split (/ /, $mode);
$mode = $modes[$num] ? $modes[$num] : $name;
my ( $state, $link ) = get_state_link($intf);
my $slaves = get_sysfs_value( $intf, "bonding/slaves" );
printf $format, $intf, $mode, $state, $link,
$slaves ? $slaves : '';
}
}
sub show {
my @interfaces = @_;
my $format = "%-16s %-10s %-10s %-10s %-10s\n";
printf $format, "Interface", "RX: bytes", "packets", "TX: bytes", "packets";
foreach my $intf (sort @interfaces) {
die "Invalid bonding interface: $intf\n"
unless (-d "/sys/class/net/$intf/bonding" );
my $slaves = get_sysfs_value( $intf, "bonding/slaves" );
next unless $slaves;
printf $format, $intf, get_sysfs_value( $intf, "statistics/rx_bytes" ),
get_sysfs_value( $intf, "statistics/rx_packets" ),
get_sysfs_value( $intf, "statistics/tx_bytes" ),
get_sysfs_value( $intf, "statistics/tx_packets" );
foreach my $slave (sort split( / /, $slaves)) {
printf $format, ' ' . $slave,
get_sysfs_value( $slave, "statistics/rx_bytes" ),
get_sysfs_value( $slave, "statistics/rx_packets" ),
get_sysfs_value( $slave, "statistics/tx_bytes" ),
get_sysfs_value( $slave, "statistics/tx_packets" );
}
}
}
my $brief;
GetOptions( 'brief' => \$brief, ) or usage();
my @bond_intf = ();
if ( $#ARGV == -1 ) {
my $sysfs = '/sys/class/net';
opendir( my $sysdir, $sysfs ) || die "can't opendir $sysfs";
foreach my $intf ( readdir($sysdir) ) {
if ( -d "$sysfs/$intf/bonding" ) {
unshift @bond_intf, $intf;
}
}
close $sysdir;
}
else {
@bond_intf = @ARGV;
}
if ($brief) {
show_brief(@bond_intf);
}
else {
show(@bond_intf);
}
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