#!/bin/bash
#
# simple ironport status plugin
#
#%# capabilities=conf

COMMUNITY=${snmp_community:-v3get}
PASSWORD=${snmp_password:-your_secret_snmp_password_here}
OIDBASE=${snmp_oidbase:-1.3.6.1.4.1.15497.1.1.1}
IRONPORT=""

DEBUG=0

RETURN_VAL=""
HOST=""

function debug {
    if [ $DEBUG -ne 0 ]; then
        echo "%> " "$1"
    fi
}

function send_config {
        echo 'graph_title Ironport Status'
        echo 'graph_args --base 10000 -l 0'
        echo 'graph_vlabel %%'
        echo 'ipstatus_memory.label Memory utilisation'
        echo 'ipstatus_cpu.label CPU utilisation'
        echo 'ipstatus_diskio.label Disk IO utilisation'
        echo 'ipstatus_queue.label queue utilisation'
}

function get_data() {
    oid=$1
    snmp_query="/usr/bin/snmpwalk -Ov -v 3 -l authNoPriv -u ${COMMUNITY} -a MD5 -A ${PASSWORD} ${IRONPORT} ${OIDBASE}.${oid}.0"
    debug "$snmp_query"
    RETURN_VAL=$($snmp_query | awk '{print $2}')
    return 0
}

function send_stats {
    get_data 1
    echo "ipstatus_memory.value ${RETURN_VAL}"
    get_data 2
    echo "ipstatus_cpu.value ${RETURN_VAL}"
    get_data 3
    echo "ipstatus_diskio.value ${RETURN_VAL}"
    get_data 4
    echo "ipstatus_queue.value ${RETURN_VAL}"
}

function main {
    IRONPORT=$(echo $0 | sed 's/.*\/ipstatus_\([^_]\+\)/\1/')
    debug $HOST

    if [ "$1" = "autoconf" ]; then
        echo yes
        exit 0
    fi

    if [ "$1" = "config" ]; then
        send_config
        exit 0
    fi

    send_stats
}

main $@