#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
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#

#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
# Copyright 2020 Joyent, Inc.
#

. $STF_SUITE/tests/functional/devices/devices.cfg
. $STF_SUITE/include/libtest.shlib

#
# Create block file or charactor file according to parameter.
#
# $1 device file type
# $2 file name
#
function create_dev_file
{
	typeset filetype=$1
	typeset filename=$2

	# On illumos we need access to the root zpool to get the major/minor
	# numbers here.
	export __ZFS_POOL_EXCLUDE=""

	case $filetype in
		b)
			devtype=$(df -n / | awk '{print $3}')
			case $devtype in
				zfs)
					rootpool=$(df / | \
						awk '{print $2}')
					rootpool=${rootpool#\(}
					rootpool=${rootpool%%/*}

					devstr=$(get_disklist $rootpool)
					devstr=$(echo "$devstr" | \
						awk '{print $1}')
					[[ -z $devstr ]] && \
						log_fail "Can not get block device file."
					devstr=/dev/dsk/${devstr}
					;;
				ufs)
			#
			# Get the existing block device file in current system.
			# And bring out the first one.
			#
					devstr=$(df -lhF ufs | \
						grep "^/dev/dsk" | \
						awk '{print $1}')
					devstr=$(echo "$devstr" | \
						awk '{print $1}')
					[[ -z $devstr ]] && \
						log_fail "Can not get block device file."
					;;
				*)
					log_unsupported "Unsupported fstype " \
						"for / ($devtype)," \
						"only ufs|zfs is supported."
					;;
			esac

			#
			# Get the device file information. i.e:
			# /dev/dsk/c0t0d0s0:      block special (28/768)
			#
			devstr=$(file $devstr)

			#
			# Bring out major and minor number.
			#
			major=${devstr##*\(}
			major=${major%%/*}
			minor=${devstr##*/}
			minor=${minor%\)}

			log_must mknod $filename b $major $minor
			;;
		c)
			#
			# Create device file '/dev/null'
			#
			log_must mknod $filename c $(getmajor mm) 2
			;;
		*)
			log_fail "'$filetype' is wrong."
			;;
	esac

	return 0
}

function cleanup
{
	log_must zfs set devices=on $TESTPOOL/$TESTFS
	log_must rm -f $TESTDIR/$TESTFILE1
	log_must rm -f $TESTDIR/$TESTFILE2
	log_must rm -f $TESTDIR/$TESTFILE1.out
	log_must rm -f $TESTDIR/$TESTFILE2.out
}