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#!/usr/bin/perl
#
# Module: vyatta-show-queueing.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) 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Stephen Hemminger
# Date: July 2008
# Description: Script to display QoS information in pretty form
#
# **** End License ****
#
use strict;
use warnings;
use Getopt::Long;
use lib "/opt/vyatta/share/perl5/";
use Vyatta::Interface;
use Vyatta::Misc;
my $intf_type;
# Map from kernel qdisc names to configuration names
my %qdisc_types = (
'pfifo_fast' => 'default',
'sfq' => 'fair-queue',
'tbf' => 'rate-limit',
'htb' => 'traffic-shaper',
'pfifo' => 'drop-tail',
'red' => 'random-detect',
'ingress' => 'traffic-limiter',
'drr' => 'round-robin',
'prio' => 'priority-queue',
'netem' => 'network-emulator',
);
# This is only partially true names can really be anything.
my %interface_types = (
'ethernet' => 'eth',
'serial' => 'wan',
'tunnel' => 'tun',
'bridge' => 'br',
'loopback' => 'lo',
'pppoe' => 'pppoe',
'pppoa' => 'pppoa',
'adsl' => 'adsl',
'multilink' => 'ml',
'wireless' => 'wlan',
'bonding' => 'bond',
);
sub show_brief {
my %ingress;
print "Output Queues:\n";
my $fmt = "%-10s %-16s %10s %10s %10s\n";
printf $fmt, 'Interface', 'Qos-Policy', 'Sent', 'Dropped', 'Overlimit';
# Read qdisc info
open( my $tc, '/sbin/tc -s qdisc ls |' ) or die 'tc command failed';
my ( $qdisc, $parent, $ifname, $id );
while (<$tc>) {
chomp;
my @fields = split;
if ( $fields[0] eq 'qdisc' ) {
# qdisc sfq 8003: dev eth1 root limit 127p quantum 1514b
( undef, $qdisc, $id, undef, $ifname, $parent ) = @fields;
next;
}
# skip unwanted extra stats
next if ( $fields[0] ne 'Sent' );
# Sent 13860 bytes 88 pkt (dropped 0, overlimits 0 requeues 0)
my ( undef, $sent, undef, undef, undef, undef, $drop, undef, $over ) =
@fields;
# punctuation was never jamal's strong suit
$drop =~ s/,$//;
my $shaper = $qdisc_types{$qdisc};
defined $shaper or $shaper = '[' . $qdisc . ']';
if ( $id eq 'ffff:' ) {
my @args = ( $ifname, $shaper, $sent, $drop, $over );
$ingress{$ifname} = \@args;
}
elsif ( $parent eq 'root' ) {
if ($intf_type) {
my $intf = new Vyatta::Interface($ifname);
next unless ( $intf && ( $intf->type() eq $intf_type ) );
}
printf $fmt, $ifname, $shaper, $sent, $drop, $over;
}
}
close $tc;
if (%ingress) {
print "\nInput:\n";
printf $fmt, 'Ifname', 'Qos-Policy', 'Received', 'Dropped', 'Overlimit';
foreach my $name ( keys %ingress ) {
my $args = $ingress{$name};
printf $fmt, @$args;
}
}
}
# FIXME This needs to change to deal with multi-level tree
sub show {
my $interface = shift;
my $fmt = "%-10s %-16s %-10s %-10s %-10s %-10s\n";
print "\n";
print "$interface Output Queueing:\n";
printf $fmt, 'Class', 'Qos-Policy', 'Sent', 'Dropped', 'Overlimit',
'Queued';
my $tc;
my %classmap = ();
open( $tc, "/sbin/tc class show dev $interface |" )
or die 'tc command failed: $!';
while (<$tc>) {
# class htb 1:1 root rate 1000Kbit ceil 1000Kbit burst 1600b cburst 1600b
# class htb 1:2 parent 1:1 leaf 8001:
# class ieee80211 :2 parent 8001:
my ( undef, undef, $id, $parent, $pid, $leaf, $qid ) = split;
if ( $parent eq 'parent' && $leaf eq 'leaf' ) {
$classmap{$qid} = $id;
}
}
close $tc;
open( $tc, "/sbin/tc -s qdisc show dev $interface |" )
or die 'tc command failed: $!';
my ( $rootid, $qdisc, $parent, $qid );
my @ingress;
my ( $shaper, $id, $sent, $drop, $over, $backlog );
while (<$tc>) {
chomp;
my @fields = split;
if ( $fields[0] eq 'qdisc' ) {
# qdisc htb 1: root r2q 10 default 20 direct_packets...
( undef, $qdisc, $qid, $parent ) = @fields;
next;
}
# skip unwanted extra stats
if ( $fields[0] eq 'Sent' ) {
# Sent 13860 bytes 88 pkt (dropped 0, overlimits 0 requeues 0)
( undef, $sent, undef, undef, undef, undef, $drop, undef, $over ) =
@fields;
# fix silly punctuation bug in tc
$drop =~ s/,$//;
$shaper = $qdisc_types{$qdisc};
# this only happens if user uses some qdisc not in pretty print list
defined $shaper or $shaper = '[' . $qdisc . ']';
$id = $classmap{$qid};
defined $id or $id = $qid;
if ( $qid eq 'ffff:' ) {
# print ingress later
@ingress = ( $shaper, $sent, $drop, $over );
next;
}
if ( $parent eq 'root' ) {
$rootid = $id;
$id = 'root';
}
else {
$id =~ s/$rootid//;
$id = sprintf( " %-8s", $id );
}
}
elsif ( $fields[0] eq 'rate' ) {
# rate 0bit 0pps backlog 0b 23p requeues 0
( undef, undef, undef, undef, undef, $backlog ) = @fields;
printf $fmt, $id, $shaper, $sent, $drop, $over, $backlog;
}
}
close $tc;
if (@ingress) {
print "\n$interface Input:\n";
$fmt = "%-16s %-10s %-10s %-10s\n";
printf $fmt, 'Qos-Policy', 'Received', 'Dropped', 'Overlimit';
printf $fmt, @ingress;
}
}
sub usage {
print "Usage: $0 [--type={ethernet,serial}] --brief\n";
print " $0 interface(s)\n";
exit 1;
}
GetOptions(
'type=s' => \$intf_type,
'brief' => sub { show_brief(); exit 0; },
) or usage();
# if no arguments given, rebuild ARGV with list of all interfaces
if ( $#ARGV == -1 ) {
foreach my $ifname ( getInterfaces() ) {
if ($intf_type) {
my $intf = new Vyatta::Interface($ifname);
next unless ( $intf && $intf_type eq $intf->type() );
}
push @ARGV, $ifname;
}
}
foreach my $interface ( sort @ARGV ) {
show($interface);
}
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