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

#!/usr/bin/env bash
# group: rw quick
#
# 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=fam@euphon.net

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

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

_cleanup()
{
    _cleanup_test_img
    for img in "${TEST_IMG}".{base,overlay,convert,a,b,c,lnk}; do
        _rm_test_img "$img"
    done
}
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 =="
    _make_test_img -b "${TEST_IMG}.base" -F $IMGFMT

    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 $QEMU_IMG amend -o "size=$size" $L "${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" -F $IMGFMT
        _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 -F $IMGFMT
            # 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}" -F $IMGFMT | _filter_img_create
$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}" -F $IMGFMT | _filter_img_create
$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b" -F $IMGFMT \
    | _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}" -F $IMGFMT "${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 $seq.full
status=0
Commit	Line	Data
11a82d14	1	#!/usr/bin/env bash
9dd003a9	2	# group: rw quick
ba898078 FZ	3	#
	4	# Test image locking
	5	#
	6	# Copyright 2016, 2017 Red Hat, Inc.
	7	#
	8	# This program is free software; you can redistribute it and/or modify
	9	# it under the terms of the GNU General Public License as published by
	10	# the Free Software Foundation; either version 2 of the License, or
	11	# (at your option) any later version.
	12	#
	13	# This program is distributed in the hope that it will be useful,
	14	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	# GNU General Public License for more details.
	17	#
	18	# You should have received a copy of the GNU General Public License
	19	# along with this program. If not, see <http://www.gnu.org/licenses/>.
	20	#
	21
	22	# creator
42a5009d	23	owner=fam@euphon.net
ba898078 FZ	24
	25	seq="$(basename $0)"
	26	echo "QA output created by $seq"
	27
ba898078 FZ	28	tmp=/tmp/$$
	29	status=1 # failure is the default!
	30
	31	_cleanup()
	32	{
	33	_cleanup_test_img
f91ecbd7 HR	34	for img in "${TEST_IMG}".{base,overlay,convert,a,b,c,lnk}; do
	35	_rm_test_img "$img"
	36	done
ba898078 FZ	37	}
	38	trap "_cleanup; exit \$status" 0 1 2 3 15
	39
	40	# get standard environment, filters and checks
	41	. ./common.rc
	42	. ./common.filter
	43	. ./common.qemu
	44
	45	size=32M
	46
	47	_check_ofd()
	48	{
	49	_make_test_img $size >/dev/null
	50	if $QEMU_IMG_PROG info --image-opts "driver=file,locking=on,filename=$TEST_IMG" 2>&1 \|
	51	grep -q 'falling back to POSIX file'; then
	52	return 1
	53	else
	54	return 0
	55	fi
	56	}
	57
	58	_check_ofd \|\| _notrun "OFD lock not available"
	59
	60	_supported_fmt qcow2
	61	_supported_proto file
ba898078 FZ	62
	63	_run_cmd()
	64	{
	65	echo
	66	(echo "$@"; "$@" 2>&1 1>/dev/null) \| _filter_testdir
	67	}
	68
8cedcffd	69	_do_run_qemu()
ba898078 FZ	70	{
	71	(
	72	if ! test -t 0; then
	73	while read cmd; do
	74	echo $cmd
	75	done
	76	fi
	77	echo quit
	78	) \| $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null
	79	}
	80
8cedcffd	81	_run_qemu_with_images()
ba898078 FZ	82	{
	83	_do_run_qemu \
	84	$(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \
	85	\| _filter_testdir \| _filter_qemu
	86	}
	87
	88	echo "== readonly=off,force-share=on should be rejected =="
	89	_run_qemu_with_images null-co://,readonly=off,force-share=on
	90
	91	for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do
	92	echo
	93	echo "== Creating base image =="
	94	TEST_IMG="${TEST_IMG}.base" _make_test_img $size
	95
	96	echo
	97	echo "== Creating test image =="
b66ff2c2	98	_make_test_img -b "${TEST_IMG}.base" -F $IMGFMT
ba898078 FZ	99
	100	echo
	101	echo "== Launching QEMU, opts: '$opts1' =="
	102	_launch_qemu -drive file="${TEST_IMG}",if=none,$opts1
	103	h=$QEMU_HANDLE
	104
	105	for opts2 in "" "read-only=on" "read-only=on,force-share=on"; do
	106	echo
	107	echo "== Launching another QEMU, opts: '$opts2' =="
	108	echo "quit" \| \
	109	$QEMU -nographic -monitor stdio \
	110	-drive file="${TEST_IMG}",if=none,$opts2 2>&1 1>/dev/null \| \
	111	_filter_testdir \| _filter_qemu
	112	done
	113
	114	for L in "" "-U"; do
	115
	116	echo
	117	echo "== Running utility commands $L =="
	118	_run_cmd $QEMU_IO $L -c "read 0 512" "${TEST_IMG}"
	119	_run_cmd $QEMU_IO $L -r -c "read 0 512" "${TEST_IMG}"
	120	_run_cmd $QEMU_IO -c "open $L ${TEST_IMG}" -c "read 0 512"
	121	_run_cmd $QEMU_IO -c "open -r $L ${TEST_IMG}" -c "read 0 512"
	122	_run_cmd $QEMU_IMG info $L "${TEST_IMG}"
	123	_run_cmd $QEMU_IMG check $L "${TEST_IMG}"
	124	_run_cmd $QEMU_IMG compare $L "${TEST_IMG}" "${TEST_IMG}"
	125	_run_cmd $QEMU_IMG map $L "${TEST_IMG}"
44e808c1	126	_run_cmd $QEMU_IMG amend -o "size=$size" $L "${TEST_IMG}"
ba898078 FZ	127	_run_cmd $QEMU_IMG commit $L "${TEST_IMG}"
ba898078 FZ	128	_run_cmd $QEMU_IMG resize $L "${TEST_IMG}" $size
b66ff2c2	129	_run_cmd $QEMU_IMG rebase $L "${TEST_IMG}" -b "${TEST_IMG}.base" -F $IMGFMT
ba898078 FZ	130	_run_cmd $QEMU_IMG snapshot -l $L "${TEST_IMG}"
	131	_run_cmd $QEMU_IMG convert $L "${TEST_IMG}" "${TEST_IMG}.convert"
	132	_run_cmd $QEMU_IMG dd $L if="${TEST_IMG}" of="${TEST_IMG}.convert" bs=512 count=1
	133	_run_cmd $QEMU_IMG bench $L -c 1 "${TEST_IMG}"
	134	_run_cmd $QEMU_IMG bench $L -w -c 1 "${TEST_IMG}"
f45b638f HR	135
	136	# qemu-img create does not support -U
	137	if [ -z "$L" ]; then
	138	_run_cmd $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" \
b66ff2c2	139	-b ${TEST_IMG}.base -F $IMGFMT
f45b638f HR	140	# Read the file format. It used to be the case that
	141	# file-posix simply truncated the file, but the qcow2
	142	# driver then failed to format it because it was unable
	143	# to acquire the necessary WRITE permission. However, the
	144	# truncation was already wrong, and the whole process
	145	# resulted in the file being completely empty and thus its
	146	# format would be detected to be raw.
	147	# So we read it here to see that creation either completed
	148	# successfully (thus the format is qcow2) or it aborted
	149	# before the file was changed at all (thus the format stays
	150	# qcow2).
	151	_img_info -U \| grep 'file format'
	152	fi
ba898078	153	done
9cd97956	154	_send_qemu_cmd $h "{ 'execute': 'quit' }" ''
ba898078 FZ	155	echo
	156	echo "Round done"
	157	_cleanup_qemu
	158	done
	159
0e1a5827	160	test_opts="read-only=off read-only=on read-only=on,force-share=on"
ba898078 FZ	161	for opt1 in $test_opts; do
	162	for opt2 in $test_opts; do
	163	echo
	164	echo "== Two devices with the same image ($opt1 - $opt2) =="
	165	_run_qemu_with_images "${TEST_IMG},$opt1" "${TEST_IMG},$opt2"
	166	done
	167	done
	168
0e1a5827	169	echo
ba898078	170	echo "== Creating ${TEST_IMG}.[abc] ==" \| _filter_testdir
b66ff2c2 EB	171	$QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}" -F $IMGFMT \| _filter_img_create
	172	$QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}" -F $IMGFMT \| _filter_img_create
	173	$QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b" -F $IMGFMT \
57ee95ed	174	\| _filter_img_create
ba898078 FZ	175
	176	echo
	177	echo "== Two devices sharing the same file in backing chain =="
	178	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.b"
	179	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.c"
	180
	181	echo
	182	echo "== Backing image also as an active device =="
	183	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}"
	184
	185	echo
	186	echo "== Backing image also as an active device (ro) =="
	187	_run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG},readonly=on"
	188
	189	echo
	190	echo "== Symbolic link =="
	191	rm -f "${TEST_IMG}.lnk" &>/dev/null
	192	ln -s ${TEST_IMG} "${TEST_IMG}.lnk" \|\| echo "Failed to create link"
	193	_run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}"
	194
de963500 FZ	195	echo
	196	echo "== Active commit to intermediate layer should work when base in use =="
	197	_launch_qemu -drive format=$IMGFMT,file="${TEST_IMG}.a",id=drive0,if=none \
	198	-device virtio-blk,drive=drive0
	199
	200	_send_qemu_cmd $QEMU_HANDLE \
	201	"{ 'execute': 'qmp_capabilities' }" \
	202	'return'
	203	_run_cmd $QEMU_IMG commit -b "${TEST_IMG}.b" "${TEST_IMG}.c"
	204
	205	_cleanup_qemu
	206
ba898078 FZ	207	_launch_qemu
	208
	209	_send_qemu_cmd $QEMU_HANDLE \
	210	"{ 'execute': 'qmp_capabilities' }" \
	211	'return'
	212
	213	echo "Adding drive"
	214	_send_qemu_cmd $QEMU_HANDLE \
	215	"{ 'execute': 'human-monitor-command',
	216	'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=${TEST_IMG}' } }" \
9cd97956	217	'return'
ba898078 FZ	218
	219	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	220
fcca5dce	221	echo "Creating overlay with qemu-img when the guest is running should be allowed"
b66ff2c2	222	_run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" -F $IMGFMT "${TEST_IMG}.overlay"
fcca5dce FZ	223
fcca5dce FZ	224	echo "== Closing an image should unlock it =="
ba898078 FZ	225	_send_qemu_cmd $QEMU_HANDLE \
	226	"{ 'execute': 'human-monitor-command',
	227	'arguments': { 'command-line': 'drive_del d0' } }" \
9cd97956	228	'return'
ba898078 FZ	229
	230	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	231
	232	echo "Adding two and closing one"
	233	for d in d0 d1; do
	234	_send_qemu_cmd $QEMU_HANDLE \
	235	"{ 'execute': 'human-monitor-command',
	236	'arguments': { 'command-line': 'drive_add 0 if=none,id=$d,file=${TEST_IMG},readonly=on' } }" \
9cd97956	237	'return'
ba898078 FZ	238	done
	239
	240	_run_cmd $QEMU_IMG info "${TEST_IMG}"
	241
	242	_send_qemu_cmd $QEMU_HANDLE \
	243	"{ 'execute': 'human-monitor-command',
	244	'arguments': { 'command-line': 'drive_del d0' } }" \
9cd97956	245	'return'
ba898078 FZ	246
	247	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	248
	249	echo "Closing the other"
	250	_send_qemu_cmd $QEMU_HANDLE \
	251	"{ 'execute': 'human-monitor-command',
	252	'arguments': { 'command-line': 'drive_del d1' } }" \
9cd97956	253	'return'
ba898078 FZ	254
	255	_run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
	256
	257	_cleanup_qemu
	258
4e7d73c5 HR	259	echo
	260	echo "== Detecting -U and force-share conflicts =="
	261
	262	echo
	263	echo 'No conflict:'
	264	$QEMU_IMG info -U --image-opts driver=null-co,force-share=on
	265	echo
	266	echo 'Conflict:'
	267	$QEMU_IMG info -U --image-opts driver=null-co,force-share=off
	268
	269	echo
	270	echo 'No conflict:'
	271	$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=on'
	272	echo
	273	echo 'Conflict:'
	274	$QEMU_IO -c 'open -r -U -o driver=null-co,force-share=off'
	275
ba898078 FZ	276	# success, all done
	277	echo "*** done"
	278	rm -f $seq.full
	279	status=0