#!/bin/sh
# This script is in the public domain.  Original author: Garrett Wollman

if [ -r /etc/defaults/periodic.conf ]; then
    . /etc/defaults/periodic.conf
    source_periodic_confs
fi

smartctl=%%PREFIX%%/sbin/smartctl
: ${daily_status_smartctl_flags="-H"}
: ${daily_status_smartctl_extra_status_flags="-a"}

case "${daily_status_smart_devices}" in
	# XXX AUTO mode selects only regular ad/da disks 
	[Aa][Uu][Tt][Oo])
		daily_status_smart_devices="$(sysctl -n kern.disks | sed -E 's/[[:<:]](cd|ar|vtbd)[0-9]+//g; s/n(da|vd)/nvme/g')"
		;;
	*)	;;
esac

if [ -z "${daily_status_smart_devices}" ]; then
	: ${daily_status_smart_enable="NO"}
else
	: ${daily_status_smart_enable="YES"}
fi

trim_junk="tail -n +4"

tmpfile="$(mktemp -t daily)"
trap "rm -f ${tmpfile}" 0 1 3 15

rc=0
case "${daily_status_smart_enable}" in
	[Yy][Ee][Ss])
		echo
		echo 'SMART status:'
		cd /dev
		for device in ${daily_status_smart_devices}; do
			device="${device#/dev/}"
			devflags=""
			case ${device} in
			tw[aes]*) devflags="-d3ware,${device##tw[aes][0-9]*,}"
				device="/dev/${device%,[0-9]*}"
				;;
			ciss*)  devflags="-dcciss,${device##ciss[0-9]*,}"
				device="/dev/${device%,[0-9]*}"
				;;
			arcmsr*) devflags="-dareca,${device##arcmsr[0-9]*,}"
				device="/dev/${device%,[0-9]*}"
				;;
			mrsas*) devflags="-dmegaraid,${device##mrsas[0-9]*,}"
				device="/dev/${device%,[0-9]*}"
				;;
			/*)	;;
			*)	device="/dev/${device}"
			        ;;
			esac

			if [ -e ${device} ]; then
				echo -n "Checking health of ${device}"
				if [ -n "${devflags}" ]; then
					echo -n " (${devflags})"
				fi
				echo -n ": "

				${smartctl} ${devflags} ${daily_status_smartctl_flags} ${device} > "${tmpfile}"
				status=$?
				if [ ${status} -eq 0 ]; then
					echo "OK"
				elif [ ${status} -eq 32 ]; then
					echo "OK (but has failed in the past)"
				elif [ $((status & 3)) -ne 0 ]; then
					rc=2
					${trim_junk} "${tmpfile}"
				elif [ `grep -c '^SMART support is: Unavailable' ${tmpfile}` -eq 1 ] ; then
					rc=2
					echo "N/A"
				else
					rc=3
					${smartctl} ${devflags} ${daily_status_smartctl_extra_status_flags} \
						${device} | ${trim_junk}
				fi
			fi
		done
		;;
esac

exit "${rc}"