[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
[email protected]

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

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