tests/qemu-iotests/153

   1 #!/bin/bash
   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
  27 tmp=/tmp/$$
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33     rm -f "${TEST_IMG}.base"
  34     rm -f "${TEST_IMG}.overlay"
  35     rm -f "${TEST_IMG}.convert"
  36     rm -f "${TEST_IMG}.a"
  37     rm -f "${TEST_IMG}.b"
  38     rm -f "${TEST_IMG}.c"
  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
  73 _do_run_qemu()
  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
  85 _run_qemu_with_images()
  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}"
 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
 157     done
 158     _send_qemu_cmd $h "{ 'execute': 'quit', }" ""
 159     echo
 160     echo "Round done"
 161     _cleanup_qemu
 162 done
 163
 164 test_opts="read-only=off read-only=on read-only=on,force-share=on"
 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
 173 echo
 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
 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
 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}' } }" \
 222     ""
 223
 224 _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
 225
 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 =="
 230 _send_qemu_cmd $QEMU_HANDLE \
 231     "{ 'execute': 'human-monitor-command',
 232        'arguments': { 'command-line': 'drive_del d0' } }" \
 233     ""
 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' } }" \
 242         ""
 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' } }" \
 250     ""
 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' } }" \
 258     ""
 259
 260 _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
 261
 262 _cleanup_qemu
 263
 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
 281 # success, all done
 282 echo "*** done"
 283 rm -f $seq.full
 284 status=0