#!/bin/sh
# check_pfsense_carp Version 0.1
# Copyright 2015, Justin Edmands, justinedmands@gmail.com
# Info available from http://justinedmands.com/?q=nagios_check_pfsense_rtt
# License for use:  http://www.opensource.org/licenses/bsd-license.php 
#
# NOTES: 
# Place this file in your pfsense nagios plugin directory.
# As of pfsense 2.2.2, this is /usr/pbi/nrpe-amd64/local/libexec/nagios.
#
# Make the plugin executable with chmod 755.
#
# This does not account for INIT states which are unplugged cables
#
# $1 needs to be an interface such as em0,em1,em2,igb0,igb1,igb2,igb3,etc.
# $2 needs to be MASTER or BACKUP 

if [ `ifconfig | grep carp | tr -s " " | cut -f 2 -d " " | grep -v INIT | uniq` == $1 ]
then
        echo "Status OK - ALL interfaces are $1"
        stateid=0
else
        echo "Status ERROR - ALL interfaces are not $1"
        stateid=2
fi
exit $stateid