#!/bin/sh
#
#---------------------------------------------#
# check_snmp_eigrp-neighbor.sh - nagios plugin
#
# Copyright (C) 2010 Rostislav Srb
#
# 25.07.2010 Version 1.0
#
# Last modified by Rostislav Srb 20100725
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
# Usage:
# ./check_snmp_eigrp-neighbors.sh [snmp community] [device hostname/IP] [neighbor name or 'list']
#
# The list argument is used list all eigrp neighbors.


community=$1
host=$2
action=$3

hex2dec () {
  echo "ibase=16;$@"|bc;
}

dec2hex () {
  echo "obase=16;$@"|bc;
}

hex2decip () {
  echo `hex2dec $1`.`hex2dec $2`.`hex2dec $3`.`hex2dec $4`;
}

if [[ $4 -lt '1' ]] ; then
  count='1'
else
  count=$4
fi

if [[ $# -lt '3' ]] ; then
  echo "Usage:"
  echo "$0 <snmp community> <device hostname/IP> <neighbor name or 'list'>"
  echo ""
  echo "The list argument is used list all eigrp neighbors."
  exit 3
fi

if [ $action == "list" ] ; then
  snmpbulkwalk -O qv -v 2c -c $community $host .1.3.6.1.4.1.9.9.449.1.4.1.1.3 | tr -d '"'|
  while read a b c d;do
    echo `hex2decip $a $b $c $d`
  done
  exit 3
fi

snmpbulkwalk -O qv -v 2c -c $community $host .1.3.6.1.4.1.9.9.449.1.4.1.1.3 | tr -d '"'|
while read a b c d;do
  echo `hex2decip $a $b $c $d` | fgrep $action &> /dev/null
  if [[ $? -eq '0' ]] ; then
    # match was found
    exit 1
  fi
done;

if [[ $? -eq '1' ]] ; then
  # match was found
  echo "OK: neighbor $action is up"
  exit 0
else
  # no neighbor matches description given
  echo "Critical: No link up to $action"
  exit 2
fi