tests/qemu-iotests/249

   1 #!/usr/bin/env bash
   2 # group: rw auto quick
   3 #
   4 # Test that a backing image is put back in read-only mode after
   5 # block-commit (both when it fails and when it succeeds).
   6 #
   7 # Copyright (C) 2019 Igalia, S.L.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 # creator
  24 owner=berto@igalia.com
  25
  26 seq="$(basename $0)"
  27 echo "QA output created by $seq"
  28
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33     _cleanup_test_img
  34     _rm_test_img "$TEST_IMG.base"
  35     _rm_test_img "$TEST_IMG.int"
  36 }
  37 trap "_cleanup; exit \$status" 0 1 2 3 15
  38
  39 # get standard environment, filters and checks
  40 . ./common.rc
  41 . ./common.filter
  42 . ./common.qemu
  43
  44 # Any format implementing BlockDriver.bdrv_change_backing_file
  45 _supported_fmt qcow2 qed
  46 _supported_proto file fuse
  47 _supported_os Linux
  48
  49 IMG_SIZE=1M
  50
  51 # Create the images: base <- int <- active
  52 TEST_IMG="$TEST_IMG.base" _make_test_img $IMG_SIZE
  53 TEST_IMG="$TEST_IMG.int" _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
  54 _make_test_img -b "$TEST_IMG.int" -F $IMGFMT
  55
  56 # Launch QEMU with these two drives:
  57 # none0: base (read-only)
  58 # none1: base <- int <- active
  59 _launch_qemu -drive if=none,file="${TEST_IMG}.base",node-name=base,read-only=on \
  60              -drive if=none,file="${TEST_IMG}",backing.node-name=int,backing.backing=base
  61
  62 _send_qemu_cmd $QEMU_HANDLE \
  63     "{ 'execute': 'qmp_capabilities' }" \
  64     'return'
  65
  66 echo
  67 echo '=== Send a write command to a drive opened in read-only mode (1)'
  68 echo
  69 _send_qemu_cmd $QEMU_HANDLE \
  70     "{ 'execute': 'human-monitor-command',
  71        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
  72     'return'
  73
  74 echo
  75 echo '=== Run block-commit on base using an invalid filter node name'
  76 echo
  77 _send_qemu_cmd $QEMU_HANDLE \
  78     "{ 'execute': 'block-commit',
  79        'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int',
  80                      'filter-node-name': '1234'}}" \
  81     'error'
  82
  83 echo
  84 echo '=== Send a write command to a drive opened in read-only mode (2)'
  85 echo
  86 _send_qemu_cmd $QEMU_HANDLE \
  87     "{ 'execute': 'human-monitor-command',
  88        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
  89     'return'
  90
  91 echo
  92 echo '=== Run block-commit on base using the default filter node name'
  93 echo
  94 _send_qemu_cmd $QEMU_HANDLE \
  95     "{ 'execute': 'block-commit',
  96        'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int'}}" \
  97     'return'
  98
  99 # Wait for block-commit to finish
 100 _send_qemu_cmd $QEMU_HANDLE '' \
 101     '"status": "null"'
 102
 103 echo
 104 echo '=== Send a write command to a drive opened in read-only mode (3)'
 105 echo
 106 _send_qemu_cmd $QEMU_HANDLE \
 107     "{ 'execute': 'human-monitor-command',
 108        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
 109     'return'
 110
 111 _cleanup_qemu
 112
 113 # success, all done
 114 echo "*** done"
 115 rm -f $seq.full
 116 status=0