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#!/bin/bash
# **** License ****
# Version: VPL 1.0
#
# The contents of this file are subject to the Vyatta Public License
# Version 1.0 ("License"); you may not use this file except in
# compliance with the License. You may obtain a copy of the License at
# http://www.vyatta.com/vpl
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and limitations
# under the License.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Tom Grennan
# Date: 2007
#
# **** End License ****
shopt -s extglob
shopt -s nullglob
declare progname=${0##*/}
declare -a full_itfs=( /sys/class/net/+(eth|vmnet|wan|sit|lo)* )
declare -a itfs
declare -i rx_bytes rx_packets rx_errors rx_dropped rx_over_errors multicast
declare -i tx_bytes tx_packets tx_errors tx_dropped tx_carrier_errors collisions
declare -i rx_missed_errors rx_fifo_errors
_usage ()
{
cat <<-EOF
$progname [ INTERFACE ]
EOF
}
_error ()
{
ecode=$1
shift
echo $@
if [ $ecode -eq 1 ] ; then
echo
_usage
fi
exit $ecode
}
if [ $# -gt 0 ] ; then
if [[ $1 == --+(usage|help) ]] ; then
_usage
exit 0
else
itfs=( $@ )
fi
else
itfs=( ${full_itfs[@]##*/} )
fi
for itf in ${itfs[@]} ; do
test -d /sys/class/net/$itf || \
_error 2 $itf: no such interface\!
for stat in \
rx_bytes rx_packets rx_errors rx_dropped rx_over_errors multicast \
tx_bytes tx_packets tx_errors tx_dropped tx_carrier_errors collisions
do
full_stat=/sys/class/net/${itf}/statistics/${stat}
if [ -r $full_stat ] ; then
eval $stat=$(cat $full_stat)
else
eval $stat=0
fi
done
for stat in rx_missed_errors ; do
full_stat=/sys/class/net/${itf}/statistics/${stat}
if [ -r $full_stat ] ; then
let $(( rx_dropped_errors += $(cat $full_stat) ))
fi
done
for stat in rx_fifo_errors ; do
full_stat=/sys/class/net/${itf}/statistics/${stat}
if [ -r $full_stat ] ; then
let $(( rx_over_errors += $(cat $full_stat) ))
fi
done
printf -v rx_stats \
'%10d %10d %10d %10d %10d %10d' \
$rx_bytes \
$rx_packets\
$rx_errors \
$rx_dropped \
$rx_over_errors \
$multicast
printf -v tx_stats \
'%10d %10d %10d %10d %10d %10d' \
$tx_bytes \
$tx_packets\
$tx_errors \
$tx_dropped \
$tx_carrier_errors \
$collisions
ip -s addr show ${itf} | sed 's/^[0-9]*: //'
cat <<-EOF
RX: bytes packets errors dropped overrun mcast
$rx_stats
TX: bytes packets errors dropped carrier collisions
$tx_stats
EOF
done
# Local Variables:
# mode: shell-script
# sh-indentation: 4
# End:
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