1#!/bin/sh
2#
3# Print SCSI Enclosure Services (SES) info. The output is dependent on the name
4# of the script/symlink used to call it.
5#
6helpstr="
7enc:		Show disk enclosure w:x:y:z value.
8slot:		Show disk slot number as reported by the enclosure.
9encdev:		Show /dev/sg* device associated with the enclosure disk slot.
10fault_led:	Show value of the disk enclosure slot fault LED.
11locate_led:	Show value of the disk enclosure slot locate LED.
12ses:		Show disk's enc, enc device, slot, and fault/locate LED values."
13
14script="${0##*/}"
15if [ "$1" = "-h" ] ; then
16	echo "$helpstr" | grep "$script:" | tr -s '\t' | cut -f 2-
17	exit
18fi
19
20if [ "$script" = "ses" ] ; then
21	scripts='enc encdev slot fault_led locate_led'
22else
23	scripts="$script"
24fi
25
26for i in $scripts ; do
27	if [ -z "$VDEV_ENC_SYSFS_PATH" ] ; then
28		echo "$i="
29		continue
30	fi
31
32	val=""
33	case $i in
34	enc)
35		if echo "$VDEV_ENC_SYSFS_PATH" | grep -q '/sys/bus/pci/slots' ; then
36			val="$VDEV_ENC_SYSFS_PATH"
37		else
38			val="$(ls """$VDEV_ENC_SYSFS_PATH/../../""" 2>/dev/null)"
39		fi
40		;;
41	slot)
42		if echo "$VDEV_ENC_SYSFS_PATH" | grep -q '/sys/bus/pci/slots' ; then
43			val="$(basename """$VDEV_ENC_SYSFS_PATH""")"
44		else
45			val="$(cat """$VDEV_ENC_SYSFS_PATH/slot""" 2>/dev/null)"
46		fi
47		;;
48	encdev)
49		val=$(ls "$VDEV_ENC_SYSFS_PATH/../device/scsi_generic" 2>/dev/null)
50		;;
51	fault_led)
52		# JBODs fault LED is called 'fault', NVMe fault LED is called
53		# 'attention'.
54		if [ -f "$VDEV_ENC_SYSFS_PATH/fault" ] ; then
55			val=$(cat "$VDEV_ENC_SYSFS_PATH/fault" 2>/dev/null)
56		elif [ -f "$VDEV_ENC_SYSFS_PATH/attention" ] ; then
57			val=$(cat "$VDEV_ENC_SYSFS_PATH/attention" 2>/dev/null)
58		fi
59		;;
60	locate_led)
61		val=$(cat "$VDEV_ENC_SYSFS_PATH/locate" 2>/dev/null)
62		;;
63	esac
64	echo "$i=$val"
65done
66
67