[mirror_qemu.git] / tests / qemu-iotests / 153

#!/usr/bin/env bash
#
# Test image locking
#
# Copyright 2016, 2017 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# creator
owner=famz@redhat.com

seq="$(basename $0)"
echo "QA output created by $seq"

tmp=/tmp/$$
status=1	# failure is the default!

_cleanup()
{
    _cleanup_test_img
    rm -f "${TEST_IMG}.base"
    rm -f "${TEST_IMG}.overlay"
    rm -f "${TEST_IMG}.convert"
    rm -f "${TEST_IMG}.a"
    rm -f "${TEST_IMG}.b"
    rm -f "${TEST_IMG}.c"
    rm -f "${TEST_IMG}.lnk"
}
trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.qemu

size=32M

_check_ofd()
{
    _make_test_img $size >/dev/null
    if $QEMU_IMG_PROG info --image-opts "driver=file,locking=on,filename=$TEST_IMG" 2>&1 |
        grep -q 'falling back to POSIX file'; then
        return 1
    else
        return 0
    fi
}

_check_ofd || _notrun "OFD lock not available"

_supported_fmt qcow2
_supported_proto file
_supported_os Linux

_run_cmd()
{
    echo
    (echo "$@"; "$@" 2>&1 1>/dev/null) | _filter_testdir
}

_do_run_qemu()
{
    (
        if ! test -t 0; then
            while read cmd; do
                echo $cmd
            done
        fi
        echo quit
    ) | $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null
}

_run_qemu_with_images()
{
    _do_run_qemu \
        $(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \
        | _filter_testdir | _filter_qemu
}

echo "== readonly=off,force-share=on should be rejected =="
_run_qemu_with_images null-co://,readonly=off,force-share=on

for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do
    echo
    echo "== Creating base image =="
    TEST_IMG="${TEST_IMG}.base" _make_test_img $size

    echo
    echo "== Creating test image =="
    $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" -b ${TEST_IMG}.base | _filter_img_create

    echo
    echo "== Launching QEMU, opts: '$opts1' =="
    _launch_qemu -drive file="${TEST_IMG}",if=none,$opts1
    h=$QEMU_HANDLE

    for opts2 in "" "read-only=on" "read-only=on,force-share=on"; do
        echo
        echo "== Launching another QEMU, opts: '$opts2' =="
        echo "quit" | \
            $QEMU -nographic -monitor stdio \
            -drive file="${TEST_IMG}",if=none,$opts2 2>&1 1>/dev/null | \
            _filter_testdir | _filter_qemu
    done

    for L in "" "-U"; do

        echo
        echo "== Running utility commands $L =="
        _run_cmd $QEMU_IO $L -c "read 0 512" "${TEST_IMG}"
        _run_cmd $QEMU_IO $L -r -c "read 0 512" "${TEST_IMG}"
        _run_cmd $QEMU_IO -c "open $L ${TEST_IMG}" -c "read 0 512"
        _run_cmd $QEMU_IO -c "open -r $L ${TEST_IMG}" -c "read 0 512"
        _run_cmd $QEMU_IMG info        $L "${TEST_IMG}"
        _run_cmd $QEMU_IMG check       $L "${TEST_IMG}"
        _run_cmd $QEMU_IMG compare     $L "${TEST_IMG}" "${TEST_IMG}"
        _run_cmd $QEMU_IMG map         $L "${TEST_IMG}"
        _run_cmd $QEMU_IMG amend -o "" $L "${TEST_IMG}"
        _run_cmd $QEMU_IMG commit      $L "${TEST_IMG}"
        _run_cmd $QEMU_IMG resize      $L "${TEST_IMG}" $size
        _run_cmd $QEMU_IMG rebase      $L "${TEST_IMG}" -b "${TEST_IMG}.base"
        _run_cmd $QEMU_IMG snapshot -l $L "${TEST_IMG}"
        _run_cmd $QEMU_IMG convert     $L "${TEST_IMG}" "${TEST_IMG}.convert"
        _run_cmd $QEMU_IMG dd          $L if="${TEST_IMG}" of="${TEST_IMG}.convert" bs=512 count=1
        _run_cmd $QEMU_IMG bench       $L -c 1 "${TEST_IMG}"
        _run_cmd $QEMU_IMG bench       $L -w -c 1 "${TEST_IMG}"

        # qemu-img create does not support -U
        if [ -z "$L" ]; then
            _run_cmd $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" \
                                      -b ${TEST_IMG}.base
            # Read the file format.  It used to be the case that
            # file-posix simply truncated the file, but the qcow2
            # driver then failed to format it because it was unable
            # to acquire the necessary WRITE permission.  However, the
            # truncation was already wrong, and the whole process
            # resulted in the file being completely empty and thus its
            # format would be detected to be raw.
            # So we read it here to see that creation either completed
            # successfully (thus the format is qcow2) or it aborted
            # before the file was changed at all (thus the format stays
            # qcow2).
            _img_info -U | grep 'file format'
        fi
    done
    _send_qemu_cmd $h "{ 'execute': 'quit' }" ''
    echo
    echo "Round done"
    _cleanup_qemu
done

test_opts="read-only=off read-only=on read-only=on,force-share=on"
for opt1 in $test_opts; do
    for opt2 in $test_opts; do
        echo
        echo "== Two devices with the same image ($opt1 - $opt2) =="
        _run_qemu_with_images "${TEST_IMG},$opt1" "${TEST_IMG},$opt2"
    done
done

echo
echo "== Creating ${TEST_IMG}.[abc] ==" | _filter_testdir
(
    $QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}"
    $QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}"
    $QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b"
) | _filter_img_create

echo
echo "== Two devices sharing the same file in backing chain =="
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.b"
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.c"

echo
echo "== Backing image also as an active device =="
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}"

echo
echo "== Backing image also as an active device (ro) =="
_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG},readonly=on"

echo
echo "== Symbolic link =="
rm -f "${TEST_IMG}.lnk" &>/dev/null
ln -s ${TEST_IMG} "${TEST_IMG}.lnk" || echo "Failed to create link"
_run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}"

echo
echo "== Active commit to intermediate layer should work when base in use =="
_launch_qemu -drive format=$IMGFMT,file="${TEST_IMG}.a",id=drive0,if=none \
             -device virtio-blk,drive=drive0

_send_qemu_cmd $QEMU_HANDLE \
    "{ 'execute': 'qmp_capabilities' }" \
    'return'
_run_cmd $QEMU_IMG commit -b "${TEST_IMG}.b" "${TEST_IMG}.c"

_cleanup_qemu

_launch_qemu

_send_qemu_cmd $QEMU_HANDLE \
    "{ 'execute': 'qmp_capabilities' }" \
    'return'

echo "Adding drive"
_send_qemu_cmd $QEMU_HANDLE \
    "{ 'execute': 'human-monitor-command',
       'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=${TEST_IMG}' } }" \
    'return'

_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'

echo "Creating overlay with qemu-img when the guest is running should be allowed"
_run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" "${TEST_IMG}.overlay"

echo "== Closing an image should unlock it =="
_send_qemu_cmd $QEMU_HANDLE \
    "{ 'execute': 'human-monitor-command',
       'arguments': { 'command-line': 'drive_del d0' } }" \
    'return'

_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'

echo "Adding two and closing one"
for d in d0 d1; do
    _send_qemu_cmd $QEMU_HANDLE \
        "{ 'execute': 'human-monitor-command',
           'arguments': { 'command-line': 'drive_add 0 if=none,id=$d,file=${TEST_IMG},readonly=on' } }" \
        'return'
done

_run_cmd $QEMU_IMG info "${TEST_IMG}"

_send_qemu_cmd $QEMU_HANDLE \
    "{ 'execute': 'human-monitor-command',
       'arguments': { 'command-line': 'drive_del d0' } }" \
    'return'

_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'

echo "Closing the other"
_send_qemu_cmd $QEMU_HANDLE \
    "{ 'execute': 'human-monitor-command',
       'arguments': { 'command-line': 'drive_del d1' } }" \
    'return'

_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'

_cleanup_qemu

echo
echo "== Detecting -U and force-share conflicts =="

echo
echo 'No conflict:'
$QEMU_IMG info -U --image-opts driver=null-co,force-share=on
echo
echo 'Conflict:'
$QEMU_IMG info -U --image-opts driver=null-co,force-share=off

echo
echo 'No conflict:'
$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=on'
echo
echo 'Conflict:'
$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=off'

# success, all done
echo "*** done"
rm -f $seq.full
status=0
Commit	Line	Data
11a82d14	1	#!/usr/bin/env bash
ba898078 FZ	2	#
	3	# Test image locking
	4	#
	5	# Copyright 2016, 2017 Red Hat, Inc.
	6	#
	7	# This program is free software; you can redistribute it and/or modify
	8	# it under the terms of the GNU General Public License as published by
	9	# the Free Software Foundation; either version 2 of the License, or
	10	# (at your option) any later version.
	11	#
	12	# This program is distributed in the hope that it will be useful,
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	# GNU General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public License
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>.
	19	#
	20
	21	# creator
	22	owner=famz@redhat.com
	23
	24	seq="$(basename $0)"
	25	echo "QA output created by $seq"
	26
ba898078 FZ	27	tmp=/tmp/$$
	28	status=1 # failure is the default!
	29
	30	_cleanup()
	31	{
	32	_cleanup_test_img
	33	rm -f "${TEST_IMG}.base"
fcca5dce	34	rm -f "${TEST_IMG}.overlay"
ba898078 FZ	35	rm -f "${TEST_IMG}.convert"
	36	rm -f "${TEST_IMG}.a"
	37	rm -f "${TEST_IMG}.b"
6a1e9096	38	rm -f "${TEST_IMG}.c"
ba898078 FZ	39	rm -f "${TEST_IMG}.lnk"
	40	}
	41	trap "_cleanup; exit \$status" 0 1 2 3 15
	42
	43	# get standard environment, filters and checks
	44	. ./common.rc
	45	. ./common.filter
	46	. ./common.qemu
	47
	48	size=32M
	49
	50	_check_ofd()
	51	{
	52	_make_test_img $size >/dev/null
	53	if $QEMU_IMG_PROG info --image-opts "driver=file,locking=on,filename=$TEST_IMG" 2>&1 \|
	54	grep -q 'falling back to POSIX file'; then
	55	return 1
	56	else
	57	return 0
	58	fi
	59	}
	60
	61	_check_ofd \|\| _notrun "OFD lock not available"
	62
	63	_supported_fmt qcow2
	64	_supported_proto file
	65	_supported_os Linux
	66
	67	_run_cmd()
	68	{
	69	echo
	70	(echo "$@"; "$@" 2>&1 1>/dev/null) \| _filter_testdir
	71	}
	72
8cedcffd	73	_do_run_qemu()
ba898078 FZ	74	{
	75	(
	76	if ! test -t 0; then
	77	while read cmd; do
	78	echo $cmd
	79	done
	80	fi
	81	echo quit
	82	) \| $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null
	83	}
	84
8cedcffd	85	_run_qemu_with_images()
ba898078 FZ	86	{
	87	_do_run_qemu \
	88	$(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \
	89	\| _filter_testdir \| _filter_qemu
	90	}
	91
	92	echo "== readonly=off,force-share=on should be rejected =="
	93	_run_qemu_with_images null-co://,readonly=off,force-share=on
	94
	95	for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do
	96	echo
	97	echo "== Creating base image =="
	98	TEST_IMG="${TEST_IMG}.base" _make_test_img $size
	99
	100	echo
	101	echo "== Creating test image =="
	102	$QEMU_IMG create -f $IMGFMT "${TEST_IMG}" -b ${TEST_IMG}.base \| _filter_img_create
	103
	104	echo
	105	echo "== Launching QEMU, opts: '$opts1' =="
	106	_launch_qemu -drive file="${TEST_IMG}",if=none,$opts1
	107	h=$QEMU_HANDLE
	108
	109	for opts2 in "" "read-only=on" "read-only=on,force-share=on"; do
	110	echo
	111	echo "== Launching another QEMU, opts: '$opts2' =="
	112	echo "quit" \| \
	113	$QEMU -nographic -monitor stdio \
	114	-drive file="${TEST_IMG}",if=none,$opts2 2>&1 1>/dev/null \| \
	115	_filter_testdir \| _filter_qemu
	116	done
	117
	118	for L in "" "-U"; do
	119
	120	echo
	121	echo "== Running utility commands $L =="
	122	_run_cmd $QEMU_IO $L -c "read 0 512" "${TEST_IMG}"
	123	_run_cmd $QEMU_IO $L -r -c "read 0 512" "${TEST_IMG}"
	124	_run_cmd $QEMU_IO -c "open $L ${TEST_IMG}" -c "read 0 512"
	125	_run_cmd $QEMU_IO -c "open -r $L ${TEST_IMG}" -c "read 0 512"
	126	_run_cmd $QEMU_IMG info $L "${TEST_IMG}"
	127	_run_cmd $QEMU_IMG check $L "${TEST_IMG}"
	128	_run_cmd $QEMU_IMG compare $L "${TEST_IMG}" "${TEST_IMG}"
	129	_run_cmd $QEMU_IMG map $L "${TEST_IMG}"
	130	_run_cmd $QEMU_IMG amend -o "" $L "${TEST_IMG}"
	131	_run_cmd $QEMU_IMG commit $L "${TEST_IMG}"
	132	_run_cmd $QEMU_IMG resize $L "${TEST_IMG}" $size
	133	_run_cmd $QEMU_IMG rebase $L "${TEST_IMG}" -b "${TEST_IMG}.base"
	134	_run_cmd $QEMU_IMG snapshot -l $L "${TEST_IMG}"
	135	_run_cmd $QEMU_IMG convert $L "${TEST_IMG}" "${TEST_IMG}.convert"
	136	_run_cmd $QEMU_IMG dd $L if="${TEST_IMG}" of="${TEST_IMG}.convert" bs=512 count=1
	137	_run_cmd $QEMU_IMG bench $L -c 1 "${TEST_IMG}"
	138	_run_cmd $QEMU_IMG bench $L -w -c 1 "${TEST_IMG}"
f45b638f HR	139
	140	# qemu-img create does not support -U
	141	if [ -z "$L" ]; then
	142	_run_cmd $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" \
	143	-b ${TEST_IMG}.base
	144	# Read the file format. It used to be the case that
	145	# file-posix simply truncated the file, but the qcow2
	146	# driver then failed to format it because it was unable
	147	# to acquire the necessary WRITE permission. However, the
	148	# truncation was already wrong, and the whole process
	149	# resulted in the file being completely empty and thus its
	150	# format would be detected to be raw.
	151	# So we read it here to see that creation either completed
	152	# successfully (thus the format is qcow2) or it aborted
	153	# before the file was changed at all (thus the format stays
	154	# qcow2).
	155	_img_info -U \| grep 'file format'
	156	fi
ba898078	157	done
9cd97956	158	_send_qemu_cmd $h "{ 'execute': 'quit' }" ''
ba898078 FZ	159	echo
	160	echo "Round done"
	161	_cleanup_qemu
	162	done
	163
0e1a5827	164	test_opts="read-only=off read-only=on read-only=on,force-share=on"
ba898078 FZ	165	for opt1 in $test_opts; do
	166	for opt2 in $test_opts; do
	167	echo
	168	echo "== Two devices with the same image ($opt1 - $opt2) =="
	169	_run_qemu_with_images "${TEST_IMG},$opt1" "${TEST_IMG},$opt2"
	170	done
	171	done
	172
0e1a5827	173	echo
ba898078 FZ	174	echo "== Creating ${TEST_IMG}.[abc] ==" \| _filter_testdir
	175	(
	176	$QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}"
	177	$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}"
	178	$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b"
	179	) \| _filter_img_create
	180
	181	echo
	182	echo "== Two devices sharing the same file in backing chain =="
	183	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.b"
	184	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.c"
	185
	186	echo
	187	echo "== Backing image also as an active device =="
	188	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}"
	189
	190	echo
	191	echo "== Backing image also as an active device (ro) =="
	192	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG},readonly=on"
	193
	194	echo
	195	echo "== Symbolic link =="
	196	rm -f "${TEST_IMG}.lnk" &>/dev/null
	197	ln -s ${TEST_IMG} "${TEST_IMG}.lnk" \|\| echo "Failed to create link"
	198	_run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}"
	199
de963500 FZ	200	echo
	201	echo "== Active commit to intermediate layer should work when base in use =="
	202	_launch_qemu -drive format=$IMGFMT,file="${TEST_IMG}.a",id=drive0,if=none \
	203	-device virtio-blk,drive=drive0
	204
	205	_send_qemu_cmd $QEMU_HANDLE \
	206	"{ 'execute': 'qmp_capabilities' }" \
	207	'return'
	208	_run_cmd $QEMU_IMG commit -b "${TEST_IMG}.b" "${TEST_IMG}.c"
	209
	210	_cleanup_qemu
	211
ba898078 FZ	212	_launch_qemu
	213
	214	_send_qemu_cmd $QEMU_HANDLE \
	215	"{ 'execute': 'qmp_capabilities' }" \
	216	'return'
	217
	218	echo "Adding drive"
	219	_send_qemu_cmd $QEMU_HANDLE \
	220	"{ 'execute': 'human-monitor-command',
	221	'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=${TEST_IMG}' } }" \
9cd97956	222	'return'
ba898078 FZ	223
	224	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	225
fcca5dce FZ	226	echo "Creating overlay with qemu-img when the guest is running should be allowed"
	227	_run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" "${TEST_IMG}.overlay"
	228
	229	echo "== Closing an image should unlock it =="
ba898078 FZ	230	_send_qemu_cmd $QEMU_HANDLE \
	231	"{ 'execute': 'human-monitor-command',
	232	'arguments': { 'command-line': 'drive_del d0' } }" \
9cd97956	233	'return'
ba898078 FZ	234
	235	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	236
	237	echo "Adding two and closing one"
	238	for d in d0 d1; do
	239	_send_qemu_cmd $QEMU_HANDLE \
	240	"{ 'execute': 'human-monitor-command',
	241	'arguments': { 'command-line': 'drive_add 0 if=none,id=$d,file=${TEST_IMG},readonly=on' } }" \
9cd97956	242	'return'
ba898078 FZ	243	done
	244
	245	_run_cmd $QEMU_IMG info "${TEST_IMG}"
	246
	247	_send_qemu_cmd $QEMU_HANDLE \
	248	"{ 'execute': 'human-monitor-command',
	249	'arguments': { 'command-line': 'drive_del d0' } }" \
9cd97956	250	'return'
ba898078 FZ	251
	252	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	253
	254	echo "Closing the other"
	255	_send_qemu_cmd $QEMU_HANDLE \
	256	"{ 'execute': 'human-monitor-command',
	257	'arguments': { 'command-line': 'drive_del d1' } }" \
9cd97956	258	'return'
ba898078 FZ	259
	260	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	261
	262	_cleanup_qemu
	263
4e7d73c5 HR	264	echo
	265	echo "== Detecting -U and force-share conflicts =="
	266
	267	echo
	268	echo 'No conflict:'
	269	$QEMU_IMG info -U --image-opts driver=null-co,force-share=on
	270	echo
	271	echo 'Conflict:'
	272	$QEMU_IMG info -U --image-opts driver=null-co,force-share=off
	273
	274	echo
	275	echo 'No conflict:'
	276	$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=on'
	277	echo
	278	echo 'Conflict:'
	279	$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=off'
	280
ba898078 FZ	281	# success, all done
	282	echo "*** done"
	283	rm -f $seq.full
	284	status=0