#!/bin/bash

# Checks ipmi nodes by RMCP ping/pong
# Mon 12 Dec 2011 kaiwang.chen@gmail.com

PACKETS=3

while getopts ":H:w:c:p:" opt
do
  case $opt in 
  H)
    HOST=$OPTARG
    ;;
  w)
    WARNING=$OPTARG
    ;;
  c)
    CRITICAL=$OPTARG
    ;;
  p)
    PACKETS=$OPTARG
    ;;
  \?)
    echo "RMCPPING UNKNOWN - invalid option -$OPTARG"
    exit 3
    ;;
  :)
    echo "RMCPPING UNKNOWN - Option -$OPTARG requires an argument."
    exit 3
    ;;
  esac
done

[[ "$HOST"x == x ]] && {
  echo "RMCPPING UNKNOWN - which ipmi node to ping"
  exit 3
}

PROG=/usr/sbin/rmcpping 
[[ -x $PROG ]] || {
  echo "RMCPPING UNKNOWN - check $PROG executable"
  exit 3
}

LOSS=`$PROG -c $PACKETS $HOST | sed -n '/packet loss/{s/^.*, \([0-9]*\)[.][0-9]*% packet loss$/\1/;p}'`

[[ "$WARNING"x == "x" || "$CRITICAL"x == "x" ]] && {
  echo "RMCPPING UNKNOWN - Packet loss $LOSS%"
  exit 3
}
WARNING=`echo $WARNING|sed s/%//`
CRITICAL=`echo $CRITICAL|sed s/%//`

if [[ $LOSS -ge $CRITICAL ]]
then
  echo "RMCPPING CRITICAL - Packet loss $LOSS%"
  exit 2
elif [[ $LOSS -ge $WARNING ]]
then
  echo "RMCPPING WARNING - Packet loss $LOSS%"
  exit 1
else
  echo "RMCPPING OK - Packet loss $LOSS%"
  exit 0
fi