#!/usr/bin/env ksh -p
#
# 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
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#
# 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 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright (c) 2013 by Delphix. All rights reserved.
#

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

#
# DESCRIPTION:
# ZFS will not interfere with devices that are in use by dumpadm.
#
# STRATEGY:
# 1. Create crash dump device using 'dumpadm'
# 2. Try to create a ZFS pool using the 'dumpadm' crash dump device.
#

verify_runnable "global"

function cleanup
{
	#
	# Remove dump device.
	#
	if [[ -n $PREVDUMPDEV ]]; then
		log_must $DUMPADM -u -d $PREVDUMPDEV > /dev/null
	fi

	destroy_pool -f $TESTPOOL
}

log_assert "Ensure ZFS cannot use a device designated as a dump device"

log_onexit cleanup

typeset dumpdev=""
typeset diskslice=""

PREVDUMPDEV=`$DUMPADM | $GREP "Dump device" | $AWK '{print $3}'`

log_note "Zero $FS_DISK0 and place free space in to slice 0"
log_must cleanup_devices $FS_DISK0

typeset slice_part=s
[[ -n "$LINUX" ]] && slice_part=p

if [[ $WRAPPER == *"smi"* ]]; then
	diskslice="$DEV_DSKDIR/${FS_DISK0}${slice_part}2"
else
	diskslice="$DEV_DSKDIR/${FS_DISK0}${slice_part}0"
fi

if [[ -n "$LINUX" ]]; then
	# Startup loop device for the disk we're using
	dsk=${diskslice%[sp][0-9]}
	dsk=${dsk##/dev/}
	slice=${diskslice##*[sp]}
	if [[ -n "$dsk" ]]; then
		log_must set_partition $slice "" 1g $dsk

		set -- $($KPARTX -asfv $dsk | head -n1)
		diskslice="/dev/mapper/${8##*/}"p1
	fi
fi

log_note "Configuring $diskslice as dump device"
log_must $DUMPADM -d $diskslice > /dev/null

log_note "Confirm that dump device has been setup"
dumpdev=`$DUMPADM | $GREP "Dump device" | $AWK '{print $3}'`
[[ -z "$dumpdev" ]] && log_untested "No dump device has been configured"

[[ "$dumpdev" != "$diskslice" ]] && \
    log_untested "Dump device has not been been configured to $diskslice"

log_note "Attempt to zpool the dump device"
log_mustnot $ZPOOL create $TESTPOOL "$diskslice"
log_mustnot poolexists $TESTPOOL

log_pass "Unable to zpool a device in use by dumpadm"
