| 1 | #!/usr/bin/env bash |
| 2 | # group: rw quick |
| 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 |
| 23 | owner=fam@euphon.net |
| 24 | |
| 25 | seq="$(basename $0)" |
| 26 | echo "QA output created by $seq" |
| 27 | |
| 28 | tmp=/tmp/$$ |
| 29 | status=1 # failure is the default! |
| 30 | |
| 31 | _cleanup() |
| 32 | { |
| 33 | _cleanup_test_img |
| 34 | for img in "${TEST_IMG}".{base,overlay,convert,a,b,c,lnk}; do |
| 35 | _rm_test_img "$img" |
| 36 | done |
| 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 |
| 62 | _require_hmp |
| 63 | |
| 64 | _run_cmd() |
| 65 | { |
| 66 | echo |
| 67 | (echo "$@"; "$@" 2>&1 1>/dev/null) | _filter_testdir | _filter_qemu_img |
| 68 | } |
| 69 | |
| 70 | _do_run_qemu() |
| 71 | { |
| 72 | ( |
| 73 | if ! test -t 0; then |
| 74 | while read cmd; do |
| 75 | echo $cmd |
| 76 | done |
| 77 | fi |
| 78 | echo quit |
| 79 | ) | $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null |
| 80 | } |
| 81 | |
| 82 | _run_qemu_with_images() |
| 83 | { |
| 84 | _do_run_qemu \ |
| 85 | $(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \ |
| 86 | | _filter_testdir | _filter_qemu |
| 87 | } |
| 88 | |
| 89 | echo "== readonly=off,force-share=on should be rejected ==" |
| 90 | _run_qemu_with_images null-co://,readonly=off,force-share=on |
| 91 | |
| 92 | for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do |
| 93 | echo |
| 94 | echo "== Creating base image ==" |
| 95 | TEST_IMG="${TEST_IMG}.base" _make_test_img $size |
| 96 | |
| 97 | echo |
| 98 | echo "== Creating test image ==" |
| 99 | _make_test_img -b "${TEST_IMG}.base" -F $IMGFMT |
| 100 | |
| 101 | echo |
| 102 | echo "== Launching QEMU, opts: '$opts1' ==" |
| 103 | _launch_qemu -drive file="${TEST_IMG}",if=none,$opts1 |
| 104 | h=$QEMU_HANDLE |
| 105 | |
| 106 | for opts2 in "" "read-only=on" "read-only=on,force-share=on"; do |
| 107 | echo |
| 108 | echo "== Launching another QEMU, opts: '$opts2' ==" |
| 109 | echo "quit" | \ |
| 110 | $QEMU -nographic -monitor stdio \ |
| 111 | -drive file="${TEST_IMG}",if=none,$opts2 2>&1 1>/dev/null | \ |
| 112 | _filter_testdir | _filter_qemu |
| 113 | done |
| 114 | |
| 115 | for L in "" "-U"; do |
| 116 | |
| 117 | echo |
| 118 | echo "== Running utility commands $L ==" |
| 119 | _run_cmd $QEMU_IO $L -c "read 0 512" "${TEST_IMG}" |
| 120 | _run_cmd $QEMU_IO $L -r -c "read 0 512" "${TEST_IMG}" |
| 121 | _run_cmd $QEMU_IO -c "open $L ${TEST_IMG}" -c "read 0 512" |
| 122 | _run_cmd $QEMU_IO -c "open -r $L ${TEST_IMG}" -c "read 0 512" |
| 123 | _run_cmd $QEMU_IMG info $L "${TEST_IMG}" |
| 124 | _run_cmd $QEMU_IMG check $L "${TEST_IMG}" |
| 125 | _run_cmd $QEMU_IMG compare $L "${TEST_IMG}" "${TEST_IMG}" |
| 126 | _run_cmd $QEMU_IMG map $L "${TEST_IMG}" |
| 127 | _run_cmd $QEMU_IMG amend -o "size=$size" $L "${TEST_IMG}" |
| 128 | _run_cmd $QEMU_IMG commit $L "${TEST_IMG}" |
| 129 | _run_cmd $QEMU_IMG resize $L "${TEST_IMG}" $size |
| 130 | _run_cmd $QEMU_IMG rebase $L "${TEST_IMG}" -b "${TEST_IMG}.base" -F $IMGFMT |
| 131 | _run_cmd $QEMU_IMG snapshot -l $L "${TEST_IMG}" |
| 132 | _run_cmd $QEMU_IMG convert $L "${TEST_IMG}" "${TEST_IMG}.convert" |
| 133 | _run_cmd $QEMU_IMG dd $L if="${TEST_IMG}" of="${TEST_IMG}.convert" bs=512 count=1 |
| 134 | _run_cmd $QEMU_IMG bench $L -c 1 "${TEST_IMG}" |
| 135 | _run_cmd $QEMU_IMG bench $L -w -c 1 "${TEST_IMG}" |
| 136 | |
| 137 | # qemu-img create does not support -U |
| 138 | if [ -z "$L" ]; then |
| 139 | _run_cmd $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" \ |
| 140 | -b ${TEST_IMG}.base -F $IMGFMT |
| 141 | # Read the file format. It used to be the case that |
| 142 | # file-posix simply truncated the file, but the qcow2 |
| 143 | # driver then failed to format it because it was unable |
| 144 | # to acquire the necessary WRITE permission. However, the |
| 145 | # truncation was already wrong, and the whole process |
| 146 | # resulted in the file being completely empty and thus its |
| 147 | # format would be detected to be raw. |
| 148 | # So we read it here to see that creation either completed |
| 149 | # successfully (thus the format is qcow2) or it aborted |
| 150 | # before the file was changed at all (thus the format stays |
| 151 | # qcow2). |
| 152 | _img_info -U | grep 'file format' |
| 153 | fi |
| 154 | done |
| 155 | _send_qemu_cmd $h "{ 'execute': 'quit' }" '' |
| 156 | echo |
| 157 | echo "Round done" |
| 158 | _cleanup_qemu |
| 159 | done |
| 160 | |
| 161 | test_opts="read-only=off read-only=on read-only=on,force-share=on" |
| 162 | for opt1 in $test_opts; do |
| 163 | for opt2 in $test_opts; do |
| 164 | echo |
| 165 | echo "== Two devices with the same image ($opt1 - $opt2) ==" |
| 166 | _run_qemu_with_images "${TEST_IMG},$opt1" "${TEST_IMG},$opt2" |
| 167 | done |
| 168 | done |
| 169 | |
| 170 | echo |
| 171 | echo "== Creating ${TEST_IMG}.[abc] ==" | _filter_testdir |
| 172 | $QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}" -F $IMGFMT | _filter_img_create |
| 173 | $QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}" -F $IMGFMT | _filter_img_create |
| 174 | $QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b" -F $IMGFMT \ |
| 175 | | _filter_img_create |
| 176 | |
| 177 | echo |
| 178 | echo "== Two devices sharing the same file in backing chain ==" |
| 179 | _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.b" |
| 180 | _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.c" |
| 181 | |
| 182 | echo |
| 183 | echo "== Backing image also as an active device ==" |
| 184 | _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}" |
| 185 | |
| 186 | echo |
| 187 | echo "== Backing image also as an active device (ro) ==" |
| 188 | _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG},readonly=on" |
| 189 | |
| 190 | echo |
| 191 | echo "== Symbolic link ==" |
| 192 | rm -f "${TEST_IMG}.lnk" &>/dev/null |
| 193 | ln -s ${TEST_IMG} "${TEST_IMG}.lnk" || echo "Failed to create link" |
| 194 | _run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}" |
| 195 | |
| 196 | echo |
| 197 | echo "== Active commit to intermediate layer should work when base in use ==" |
| 198 | _launch_qemu -drive format=$IMGFMT,file="${TEST_IMG}.a",id=drive0,if=none \ |
| 199 | -device virtio-blk,drive=drive0 |
| 200 | |
| 201 | _send_qemu_cmd $QEMU_HANDLE \ |
| 202 | "{ 'execute': 'qmp_capabilities' }" \ |
| 203 | 'return' |
| 204 | _run_cmd $QEMU_IMG commit -b "${TEST_IMG}.b" "${TEST_IMG}.c" |
| 205 | |
| 206 | _cleanup_qemu |
| 207 | |
| 208 | _launch_qemu |
| 209 | |
| 210 | _send_qemu_cmd $QEMU_HANDLE \ |
| 211 | "{ 'execute': 'qmp_capabilities' }" \ |
| 212 | 'return' |
| 213 | |
| 214 | echo "Adding drive" |
| 215 | _send_qemu_cmd $QEMU_HANDLE \ |
| 216 | "{ 'execute': 'human-monitor-command', |
| 217 | 'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=${TEST_IMG}' } }" \ |
| 218 | 'return' |
| 219 | |
| 220 | _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512' |
| 221 | |
| 222 | echo "Creating overlay with qemu-img when the guest is running should be allowed" |
| 223 | _run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" -F $IMGFMT "${TEST_IMG}.overlay" |
| 224 | |
| 225 | echo "== Closing an image should unlock it ==" |
| 226 | _send_qemu_cmd $QEMU_HANDLE \ |
| 227 | "{ 'execute': 'human-monitor-command', |
| 228 | 'arguments': { 'command-line': 'drive_del d0' } }" \ |
| 229 | 'return' |
| 230 | |
| 231 | _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512' |
| 232 | |
| 233 | echo "Adding two and closing one" |
| 234 | for d in d0 d1; do |
| 235 | _send_qemu_cmd $QEMU_HANDLE \ |
| 236 | "{ 'execute': 'human-monitor-command', |
| 237 | 'arguments': { 'command-line': 'drive_add 0 if=none,id=$d,file=${TEST_IMG},readonly=on' } }" \ |
| 238 | 'return' |
| 239 | done |
| 240 | |
| 241 | _run_cmd $QEMU_IMG info "${TEST_IMG}" |
| 242 | |
| 243 | _send_qemu_cmd $QEMU_HANDLE \ |
| 244 | "{ 'execute': 'human-monitor-command', |
| 245 | 'arguments': { 'command-line': 'drive_del d0' } }" \ |
| 246 | 'return' |
| 247 | |
| 248 | _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512' |
| 249 | |
| 250 | echo "Closing the other" |
| 251 | _send_qemu_cmd $QEMU_HANDLE \ |
| 252 | "{ 'execute': 'human-monitor-command', |
| 253 | 'arguments': { 'command-line': 'drive_del d1' } }" \ |
| 254 | 'return' |
| 255 | |
| 256 | _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512' |
| 257 | |
| 258 | _cleanup_qemu |
| 259 | |
| 260 | echo |
| 261 | echo "== Detecting -U and force-share conflicts ==" |
| 262 | |
| 263 | echo |
| 264 | echo 'No conflict:' |
| 265 | $QEMU_IMG info -U --image-opts driver=null-co,force-share=on |
| 266 | echo |
| 267 | echo 'Conflict:' |
| 268 | $QEMU_IMG info -U --image-opts driver=null-co,force-share=off |
| 269 | |
| 270 | echo |
| 271 | echo 'No conflict:' |
| 272 | $QEMU_IO -c 'open -r -U -o driver=null-co,force-share=on' |
| 273 | echo |
| 274 | echo 'Conflict:' |
| 275 | $QEMU_IO -c 'open -r -U -o driver=null-co,force-share=off' |
| 276 | |
| 277 | # success, all done |
| 278 | echo "*** done" |
| 279 | rm -f $seq.full |
| 280 | status=0 |