tests/qemu-iotests/249

   1 #!/usr/bin/env bash
   2 #
   3 # Test that a backing image is put back in read-only mode after
   4 # block-commit (both when it fails and when it succeeds).
   5 #
   6 # Copyright (C) 2019 Igalia, S.L.
   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=berto@igalia.com
  24
  25 seq="$(basename $0)"
  26 echo "QA output created by $seq"
  27
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33     _rm_test_img "$TEST_IMG.base"
  34     _rm_test_img "$TEST_IMG.int"
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41 . ./common.qemu
  42
  43 # Any format implementing BlockDriver.bdrv_change_backing_file
  44 _supported_fmt qcow2 qed
  45 _supported_proto file
  46 _supported_os Linux
  47
  48 IMG_SIZE=1M
  49
  50 # Create the images: base <- int <- active
  51 TEST_IMG="$TEST_IMG.base" _make_test_img $IMG_SIZE | _filter_imgfmt
  52 TEST_IMG="$TEST_IMG.int" _make_test_img -b "$TEST_IMG.base" | _filter_imgfmt
  53 _make_test_img -b "$TEST_IMG.int" | _filter_imgfmt
  54
  55 # Launch QEMU with these two drives:
  56 # none0: base (read-only)
  57 # none1: base <- int <- active
  58 _launch_qemu -drive if=none,file="${TEST_IMG}.base",node-name=base,read-only=on \
  59              -drive if=none,file="${TEST_IMG}",backing.node-name=int,backing.backing=base
  60
  61 _send_qemu_cmd $QEMU_HANDLE \
  62     "{ 'execute': 'qmp_capabilities' }" \
  63     'return'
  64
  65 echo
  66 echo '=== Send a write command to a drive opened in read-only mode (1)'
  67 echo
  68 _send_qemu_cmd $QEMU_HANDLE \
  69     "{ 'execute': 'human-monitor-command',
  70        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
  71     'return'
  72
  73 echo
  74 echo '=== Run block-commit on base using an invalid filter node name'
  75 echo
  76 _send_qemu_cmd $QEMU_HANDLE \
  77     "{ 'execute': 'block-commit',
  78        'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int',
  79                      'filter-node-name': '1234'}}" \
  80     'error'
  81
  82 echo
  83 echo '=== Send a write command to a drive opened in read-only mode (2)'
  84 echo
  85 _send_qemu_cmd $QEMU_HANDLE \
  86     "{ 'execute': 'human-monitor-command',
  87        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
  88     'return'
  89
  90 echo
  91 echo '=== Run block-commit on base using the default filter node name'
  92 echo
  93 _send_qemu_cmd $QEMU_HANDLE \
  94     "{ 'execute': 'block-commit',
  95        'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int'}}" \
  96     'return'
  97
  98 # Wait for block-commit to finish
  99 _send_qemu_cmd $QEMU_HANDLE '' \
 100     '"status": "null"'
 101
 102 echo
 103 echo '=== Send a write command to a drive opened in read-only mode (3)'
 104 echo
 105 _send_qemu_cmd $QEMU_HANDLE \
 106     "{ 'execute': 'human-monitor-command',
 107        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
 108     'return'
 109
 110 _cleanup_qemu
 111
 112 # success, all done
 113 echo "*** done"
 114 rm -f $seq.full
 115 status=0