%PDF-
%PDF-
Mini Shell
Mini Shell
#!/bin/bash
## check bond interface
## Copyright (c) 2017, Namecheap.com
## Yuri Muravyov <yuriy.muravyov@namecheap.com>
## modified by Volodymyr Kuprikov
## modified by Dmitriy Yalanskiy
## modified by Bogdan Kukharskiy (added exclude bond slave interface possibility, bugs fixed)
PROGNAME=check-bond.sh
REVISION=0.4.1
PROGNAME=$(basename $0)
ENV='/usr/bin/env'
GREP=$($ENV which grep)
BC=$($ENV which bc)
AWK=$($ENV which awk)
XARGS=$($ENV which xargs)
SED=$($ENV which sed)
LS=$($ENV which ls)
ECHO=$($ENV which echo)
CP=$($ENV which cp)
DATE=$($ENV which date)
declare -a EXCLUDE_ARRAY
#if $GREP -qiE "CentOS Linux release 7|Red Hat Enterprise Linux Server release 7" /etc/redhat-release ; then
# SED=/usr/bin/sed
# LS=/usr/bin/ls
# ECHO=/usr/bin/echo
# CP=/usr/bin/cp
# DATE=/usr/bin/date
#elif $GREP -qiE "CentOS release 6|Red Hat Enterprise Linux Server release 6|CloudLinux Server release 6" /etc/redhat-release ; then
# SED=/bin/sed
# LS=/bin/ls
# ECHO=/bin/echo
# CP=/bin/cp
# DATE=/bin/date
#fi
#Function for checking an existance in an array ($1) of an element ($2)
function contains() {
local n=$#
local value=${!n}
for ((i=1;i < $#;i++)) {
if [ "${!i}" == "${value}" ]; then
echo "y"
return 0
fi
}
echo "n"
return 1
}
print_revision() {
$ECHO $PROGNAME $REVISION
}
print_usage() {
$ECHO "Usage: $PROGNAME [options]"
$ECHO " e.g. $PROGNAME -b bond0"
$ECHO " $PROGNAME -b bond0 -p eth0"
$ECHO " $PROGNAME -x eth0"
$ECHO " $PROGNAME -b bond0 -w 0.1 -c 0.2"
$ECHO " $PROGNAME -b bond0 -p eth0 -w 0.5 -c 3"
$ECHO " $PROGNAME -b bond0 --disable-check-errors all --disable-check-drops all"
$ECHO
$ECHO "Options:"
$ECHO -e "\t --bond | -b bond_interface \t\t bond interface name"
$ECHO -e "\t --exclude | -x bond slave interface \t exclude bond slave interface from check, optional, string (can be a list separated by ',')"
$ECHO -e "\t --warning | -w NUM \t\t\t warning number of TX/RX errors and drops per second, you can use float numbers (default 0.3)"
$ECHO -e "\t --critical | -c NUM \t\t\t critical number of TX/RX errors and drops per second, you can use float numbers (default 1)"
$ECHO -e "\t\t\t\t\t\t if 'Critical' and 'Warning' options aren't defined, only bond interface state will be checked"
$ECHO -e "\t --primary-interface | -p interface \t primary slave interface name (optional)"
$ECHO -e "\t --disable-check-errors TYPE-OF-ERRORS \t\t\t may be in value rx, tx or all"
$ECHO -e "\t --disable-check-drops TYPE-OF-DROPS \t\t\t may be in value rx, tx or all"
$ECHO -e "\t --help | -h \t\t\t\t print help"
$ECHO -e "\t --version | -V \t\t\t print version"
}
print_help() {
print_revision
$ECHO
$ECHO "This plugin checks Linux bonding interface status"
$ECHO
print_usage
$ECHO
exit 3
}
# parse cmd arguments
if [ "$#" -gt 0 ]; then
while [ "$#" -gt 0 ]; do
case "$1" in
'--help'|'-h')
print_help
exit 3
;;
'--version'|'-V')
print_revision
exit 3
;;
'--bond'|'-b')
BOND="$2"
shift 2
;;
'--exclude'|'-x')
IFS=, read -a EXCLUDE_ARRAY <<< "$2" unset IFS
shift 2
;;
'--warning'|'-w')
WARN="$2"
shift 2
;;
'--critical'|'-c')
CRIT="$2"
shift 2
;;
'--primary-interface'|'-p')
PIFACE="$2"
shift 2
;;
'--disable-check-errors')
DISABLED_ERRORS="$2"
shift 2
;;
'--disable-check-drops')
DISABLED_DROPS="$2"
shift 2
;;
*)
$ECHO "Unknown option!"
print_usage
exit 3
;;
esac
done
fi
if [ ! "$BOND" ]; then
BONDS="$($LS -1 /proc/net/bonding/|$XARGS)"
else
BONDS="$BOND"
fi
if [ "$WARN" -a "$CRIT" ]; then
if [ "$($ECHO $WARN'>'$CRIT | $BC -l)" -eq 1 ]; then
$ECHO "'Critical' option cannot be less than 'Warning' option"
exit 3
fi
fi
if [ "$WARN" -a -z "$CRIT" ]; then
$ECHO "Set 'Critical' option if you set 'Warning' option"
exit 3
fi
if [ -z "$WARN" -a "$CRIT" ]; then
$ECHO "Set 'Warning' option if you set 'Critical' option"
exit 3
fi
if [ ! "$WARN" -a ! "$CRIT" ]; then
WARN=0.3
CRIT=1
fi
if [ ! "$DISABLED_ERRORS" ]; then
DISABLED_ERRORS="none"
fi
if [ ! "$DISABLED_DROPS" ]; then
DISABLED_DROPS="none"
fi
declare -i COUNTIF
for BOND in $BONDS; do
if [ ! -f "/proc/net/bonding/$BOND" ]; then
$ECHO "No bond interface with name $BOND found"
exit 3
fi
INTERFACES="$($AWK '/Slave Interface/ {print $3}' /proc/net/bonding/$BOND|$XARGS)"
for IFACE in $INTERFACES; do
COUNTIF+=1
if [ $(contains "${EXCLUDE_ARRAY[@]}" "${IFACE}") == "y" ]; then #checking that IFACE is in excluded array (n means NOT found in exclude_array, y is for found)
continue
fi
IFSTATE="$($GREP "Slave Interface: $IFACE" -A1 /proc/net/bonding/$BOND|$AWK '/MII Status:/ {print $3}')"
[ "$IFSTATE" != 'up' ] && CRIT_STATUS+="$IFACE from $BOND is $IFSTATE; "
done;
#for fault-tolerance mode only
BSTATE="$($AWK '/Currently Active Slave/ {print $4}' /proc/net/bonding/$BOND)"
[ "$BSTATE" = 'None' ] && CRIT_STATUS+="$BOND interface have no active slaves. "
[ "$PIFACE" != '' -a "$BSTATE" != "$PIFACE" ] && WARN_STATUS+="$BOND interface have unexpected primary slave interface $BSTATE. "
[[ $COUNTIF -lt 2 ]] && CRIT_STATUS+="$BOND interface use less than 2 slave interfaces. "
if [ -f /tmp/nagios-proc-net-dev.tmp -a "$WARN" -a "$CRIT" ]; then
#Used suffixes
# _P - previous
# _C - current
# _D - delta
# _A - average
TIME_P="$($LS -l --time-style='+%s' /tmp/nagios-proc-net-dev.tmp|$AWK {' print $6 '})"
TIME_C="$("$DATE" +%s)"
TIME_D=$(( $TIME_C-$TIME_P ))
for IFACE in $BOND $INTERFACES; do
STR="$($GREP "$IFACE:" /proc/net/dev |$AWK {'print $4"-"$5"-"$12"-"$13'})"
IFS=-
set $STR
RX_ERR_C="$1"
RX_DRP_C="$2"
TX_ERR_C="$3"
TX_DRP_C="$4"
STR="$($GREP "$IFACE:" /tmp/nagios-proc-net-dev.tmp |$AWK {'print $4"-"$5"-"$12"-"$13'})"
IFS=-
set $STR
RX_ERR_P="$1"
RX_DRP_P="$2"
TX_ERR_P="$3"
TX_DRP_P="$4"
RX_ERR_D=$(( $RX_ERR_C-$RX_ERR_P ))
RX_DRP_D=$(( $RX_DRP_C-$RX_DRP_P ))
TX_ERR_D=$(( $TX_ERR_C-$TX_ERR_P ))
TX_DRP_D=$(( $TX_DRP_C-$TX_DRP_P ))
RX_ERR_A=$($ECHO "scale=2; $RX_ERR_D/$TIME_D"|$BC|$SED 's/^\./0./' )
RX_DRP_A=$($ECHO "scale=2; $RX_DRP_D/$TIME_D"|$BC|$SED 's/^\./0./' )
TX_ERR_A=$($ECHO "scale=2; $TX_ERR_D/$TIME_D"|$BC|$SED 's/^\./0./' )
TX_DRP_A=$($ECHO "scale=2; $TX_DRP_D/$TIME_D"|$BC|$SED 's/^\./0./' )
if [ "$DISABLED_ERRORS" != "rx" ] && [ "$DISABLED_ERRORS" != "all" ]; then
[ "$($ECHO $RX_ERR_A'>'$CRIT | $BC -l)" -eq 1 ] && CRIT_STATUS+="$IFACE RX ERRORS: $RX_ERR_A per sec. "
fi
if [ "$DISABLED_DROPS" != "rx" ] && [ "$DISABLED_DROPS" != "all" ]; then
[ "$($ECHO $RX_DRP_A'>'$CRIT | $BC -l)" -eq 1 ] && CRIT_STATUS+="$IFACE RX DROPS: $RX_DRP_A per sec. "
fi
if [ "$DISABLED_ERRORS" != "tx" ] && [ "$DISABLED_ERRORS" != "all" ]; then
[ "$($ECHO $TX_ERR_A'>'$CRIT | $BC -l)" -eq 1 ] && CRIT_STATUS+="$IFACE TX ERRORS: $TX_ERR_A per sec. "
fi
if [ "$DISABLED_DROPS" != "tx" ] && [ "$DISABLED_DROPS" != "all" ]; then
[ "$($ECHO $TX_DRP_A'>'$CRIT | $BC -l)" -eq 1 ] && CRIT_STATUS+="$IFACE TX DROPS: $TX_DRP_A per sec. "
fi
if [ "$DISABLED_ERRORS" != "rx" ] && [ "$DISABLED_ERRORS" != "all" ]; then
[ "$($ECHO $RX_ERR_A'>'$WARN | $BC -l)" -eq 1 ] && WARN_STATUS+="$IFACE RX ERRORS: $RX_ERR_A per sec. "
fi
if [ "$DISABLED_DROPS" != "rx" ] && [ "$DISABLED_DROPS" != "all" ]; then
[ "$($ECHO $RX_DRP_A'>'$WARN | $BC -l)" -eq 1 ] && WARN_STATUS+="$IFACE RX DROPS: $RX_DRP_A per sec. "
fi
if [ "$DISABLED_ERRORS" != "tx" ] && [ "$DISABLED_ERRORS" != "all" ]; then
[ "$($ECHO $TX_ERR_A'>'$WARN | $BC -l)" -eq 1 ] && WARN_STATUS+="$IFACE TX ERRORS: $TX_ERR_A per sec. "
fi
if [ "$DISABLED_DROPS" != "tx" ] && [ "$DISABLED_DROPS" != "all" ]; then
[ "$($ECHO $TX_DRP_A'>'$WARN | $BC -l)" -eq 1 ] && WARN_STATUS+="$IFACE TX DROPS: $TX_DRP_A per sec. "
fi
IFS=' '
done
fi
OK_STATUS+="$OK_STATUS $BOND's $($GREP "Bonding Mode: " /proc/net/bonding/$BOND), Slave Interfaces: $INTERFACES$([ "$BSTATE" != '' ] && $ECHO ", Currently Active Slave: $BSTATE")$([ ${#EXCLUDE_ARRAY[@]} != 0 ] && $ECHO ", Excluded from check: ${EXCLUDE_ARRAY[*]}")"
done
$CP -f /proc/net/dev /tmp/nagios-proc-net-dev.tmp
if [ $? -eq 1 ]; then
$ECHO "Can't rewrite last state file, check file permissions"
exit 3
fi
[ "$CRIT_STATUS" != '' ] && $ECHO Critical: $CRIT_STATUS && exit 2
[ "$WARN_STATUS" != '' ] && $ECHO Warning: $WARN_STATUS && exit 1
if [ "$OK_STATUS" = '' ]; then
$ECHO "OK: No bonding interface found"
else
$ECHO "OK: $OK_STATUS"
fi
exit 0
Zerion Mini Shell 1.0