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 $seq"
  26
  27 here="$PWD"
  28 tmp=/tmp/$$
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33     _cleanup_test_img
  34     rm -f "${TEST_IMG}.base"
  35     rm -f "${TEST_IMG}.overlay"
  36     rm -f "${TEST_IMG}.convert"
  37     rm -f "${TEST_IMG}.a"
  38     rm -f "${TEST_IMG}.b"
  39     rm -f "${TEST_IMG}.c"
  40     rm -f "${TEST_IMG}.lnk"
  41 }
  42 trap "_cleanup; exit \$status" 0 1 2 3 15
  43
  44 # get standard environment, filters and checks
  45 . ./common.rc
  46 . ./common.filter
  47 . ./common.qemu
  48
  49 size=32M
  50
  51 _check_ofd()
  52 {
  53     _make_test_img $size >/dev/null
  54     if $QEMU_IMG_PROG info --image-opts "driver=file,locking=on,filename=$TEST_IMG" 2>&1 |
  55         grep -q 'falling back to POSIX file'; then
  56         return 1
  57     else
  58         return 0
  59     fi
  60 }
  61
  62 _check_ofd || _notrun "OFD lock not available"
  63
  64 _supported_fmt qcow2
  65 _supported_proto file
  66 _supported_os Linux
  67
  68 _run_cmd()
  69 {
  70     echo
  71     (echo "$@"; "$@" 2>&1 1>/dev/null) | _filter_testdir
  72 }
  73
  74 function _do_run_qemu()
  75 {
  76     (
  77         if ! test -t 0; then
  78             while read cmd; do
  79                 echo $cmd
  80             done
  81         fi
  82         echo quit
  83     ) | $QEMU -nographic -monitor stdio -serial none "$@" 1>/dev/null
  84 }
  85
  86 function _run_qemu_with_images()
  87 {
  88     _do_run_qemu \
  89         $(for i in $@; do echo "-drive if=none,file=$i"; done) 2>&1 \
  90         | _filter_testdir | _filter_qemu
  91 }
  92
  93 echo "== readonly=off,force-share=on should be rejected =="
  94 _run_qemu_with_images null-co://,readonly=off,force-share=on
  95
  96 for opts1 in "" "read-only=on" "read-only=on,force-share=on"; do
  97     echo
  98     echo "== Creating base image =="
  99     TEST_IMG="${TEST_IMG}.base" _make_test_img $size
 100
 101     echo
 102     echo "== Creating test image =="
 103     $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" -b ${TEST_IMG}.base | _filter_img_create
 104
 105     echo
 106     echo "== Launching QEMU, opts: '$opts1' =="
 107     _launch_qemu -drive file="${TEST_IMG}",if=none,$opts1
 108     h=$QEMU_HANDLE
 109
 110     for opts2 in "" "read-only=on" "read-only=on,force-share=on"; do
 111         echo
 112         echo "== Launching another QEMU, opts: '$opts2' =="
 113         echo "quit" | \
 114             $QEMU -nographic -monitor stdio \
 115             -drive file="${TEST_IMG}",if=none,$opts2 2>&1 1>/dev/null | \
 116             _filter_testdir | _filter_qemu
 117     done
 118
 119     for L in "" "-U"; do
 120
 121         echo
 122         echo "== Running utility commands $L =="
 123         _run_cmd $QEMU_IO $L -c "read 0 512" "${TEST_IMG}"
 124         _run_cmd $QEMU_IO $L -r -c "read 0 512" "${TEST_IMG}"
 125         _run_cmd $QEMU_IO -c "open $L ${TEST_IMG}" -c "read 0 512"
 126         _run_cmd $QEMU_IO -c "open -r $L ${TEST_IMG}" -c "read 0 512"
 127         _run_cmd $QEMU_IMG info        $L "${TEST_IMG}"
 128         _run_cmd $QEMU_IMG check       $L "${TEST_IMG}"
 129         _run_cmd $QEMU_IMG compare     $L "${TEST_IMG}" "${TEST_IMG}"
 130         _run_cmd $QEMU_IMG map         $L "${TEST_IMG}"
 131         _run_cmd $QEMU_IMG amend -o "" $L "${TEST_IMG}"
 132         _run_cmd $QEMU_IMG commit      $L "${TEST_IMG}"
 133         _run_cmd $QEMU_IMG resize      $L "${TEST_IMG}" $size
 134         _run_cmd $QEMU_IMG rebase      $L "${TEST_IMG}" -b "${TEST_IMG}.base"
 135         _run_cmd $QEMU_IMG snapshot -l $L "${TEST_IMG}"
 136         _run_cmd $QEMU_IMG convert     $L "${TEST_IMG}" "${TEST_IMG}.convert"
 137         _run_cmd $QEMU_IMG dd          $L if="${TEST_IMG}" of="${TEST_IMG}.convert" bs=512 count=1
 138         _run_cmd $QEMU_IMG bench       $L -c 1 "${TEST_IMG}"
 139         _run_cmd $QEMU_IMG bench       $L -w -c 1 "${TEST_IMG}"
 140
 141         # qemu-img create does not support -U
 142         if [ -z "$L" ]; then
 143             _run_cmd $QEMU_IMG create -f $IMGFMT "${TEST_IMG}" \
 144                                       -b ${TEST_IMG}.base
 145             # Read the file format.  It used to be the case that
 146             # file-posix simply truncated the file, but the qcow2
 147             # driver then failed to format it because it was unable
 148             # to acquire the necessary WRITE permission.  However, the
 149             # truncation was already wrong, and the whole process
 150             # resulted in the file being completely empty and thus its
 151             # format would be detected to be raw.
 152             # So we read it here to see that creation either completed
 153             # successfully (thus the format is qcow2) or it aborted
 154             # before the file was changed at all (thus the format stays
 155             # qcow2).
 156             _img_info -U | grep 'file format'
 157         fi
 158     done
 159     _send_qemu_cmd $h "{ 'execute': 'quit', }" ""
 160     echo
 161     echo "Round done"
 162     _cleanup_qemu
 163 done
 164
 165 test_opts="read-only=off read-only=on read-only=on,force-share=on"
 166 for opt1 in $test_opts; do
 167     for opt2 in $test_opts; do
 168         echo
 169         echo "== Two devices with the same image ($opt1 - $opt2) =="
 170         _run_qemu_with_images "${TEST_IMG},$opt1" "${TEST_IMG},$opt2"
 171     done
 172 done
 173
 174 echo
 175 echo "== Creating ${TEST_IMG}.[abc] ==" | _filter_testdir
 176 (
 177     $QEMU_IMG create -f qcow2 "${TEST_IMG}.a" -b "${TEST_IMG}"
 178     $QEMU_IMG create -f qcow2 "${TEST_IMG}.b" -b "${TEST_IMG}"
 179     $QEMU_IMG create -f qcow2 "${TEST_IMG}.c" -b "${TEST_IMG}.b"
 180 ) | _filter_img_create
 181
 182 echo
 183 echo "== Two devices sharing the same file in backing chain =="
 184 _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.b"
 185 _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}.c"
 186
 187 echo
 188 echo "== Backing image also as an active device =="
 189 _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG}"
 190
 191 echo
 192 echo "== Backing image also as an active device (ro) =="
 193 _run_qemu_with_images "${TEST_IMG}.a" "${TEST_IMG},readonly=on"
 194
 195 echo
 196 echo "== Symbolic link =="
 197 rm -f "${TEST_IMG}.lnk" &>/dev/null
 198 ln -s ${TEST_IMG} "${TEST_IMG}.lnk" || echo "Failed to create link"
 199 _run_qemu_with_images "${TEST_IMG}.lnk" "${TEST_IMG}"
 200
 201 echo
 202 echo "== Active commit to intermediate layer should work when base in use =="
 203 _launch_qemu -drive format=$IMGFMT,file="${TEST_IMG}.a",id=drive0,if=none \
 204              -device virtio-blk,drive=drive0
 205
 206 _send_qemu_cmd $QEMU_HANDLE \
 207     "{ 'execute': 'qmp_capabilities' }" \
 208     'return'
 209 _run_cmd $QEMU_IMG commit -b "${TEST_IMG}.b" "${TEST_IMG}.c"
 210
 211 _cleanup_qemu
 212
 213 _launch_qemu
 214
 215 _send_qemu_cmd $QEMU_HANDLE \
 216     "{ 'execute': 'qmp_capabilities' }" \
 217     'return'
 218
 219 echo "Adding drive"
 220 _send_qemu_cmd $QEMU_HANDLE \
 221     "{ 'execute': 'human-monitor-command',
 222        'arguments': { 'command-line': 'drive_add 0 if=none,id=d0,file=${TEST_IMG}' } }" \
 223     ""
 224
 225 _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
 226
 227 echo "Creating overlay with qemu-img when the guest is running should be allowed"
 228 _run_cmd $QEMU_IMG create -f $IMGFMT -b "${TEST_IMG}" "${TEST_IMG}.overlay"
 229
 230 echo "== Closing an image should unlock it =="
 231 _send_qemu_cmd $QEMU_HANDLE \
 232     "{ 'execute': 'human-monitor-command',
 233        'arguments': { 'command-line': 'drive_del d0' } }" \
 234     ""
 235
 236 _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
 237
 238 echo "Adding two and closing one"
 239 for d in d0 d1; do
 240     _send_qemu_cmd $QEMU_HANDLE \
 241         "{ 'execute': 'human-monitor-command',
 242            'arguments': { 'command-line': 'drive_add 0 if=none,id=$d,file=${TEST_IMG},readonly=on' } }" \
 243         ""
 244 done
 245
 246 _run_cmd $QEMU_IMG info "${TEST_IMG}"
 247
 248 _send_qemu_cmd $QEMU_HANDLE \
 249     "{ 'execute': 'human-monitor-command',
 250        'arguments': { 'command-line': 'drive_del d0' } }" \
 251     ""
 252
 253 _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
 254
 255 echo "Closing the other"
 256 _send_qemu_cmd $QEMU_HANDLE \
 257     "{ 'execute': 'human-monitor-command',
 258        'arguments': { 'command-line': 'drive_del d1' } }" \
 259     ""
 260
 261 _run_cmd $QEMU_IO "${TEST_IMG}" -c 'write 0 512'
 262
 263 _cleanup_qemu
 264
 265 echo
 266 echo "== Detecting -U and force-share conflicts =="
 267
 268 echo
 269 echo 'No conflict:'
 270 $QEMU_IMG info -U --image-opts driver=null-co,force-share=on
 271 echo
 272 echo 'Conflict:'
 273 $QEMU_IMG info -U --image-opts driver=null-co,force-share=off
 274
 275 echo
 276 echo 'No conflict:'
 277 $QEMU_IO -c 'open -r -U -o driver=null-co,force-share=on'
 278 echo
 279 echo 'Conflict:'
 280 $QEMU_IO -c 'open -r -U -o driver=null-co,force-share=off'
 281
 282 # success, all done
 283 echo "*** done"
 284 rm -f $seq.full
 285 status=0