tests/qemu-iotests/267

   1 #!/usr/bin/env bash
   2 #
   3 # Test which nodes are involved in internal snapshots
   4 #
   5 # Copyright (C) 2019 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=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31     _cleanup_test_img
  32     rm -f "$SOCK_DIR/nbd"
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39
  40 _supported_fmt qcow2
  41 _supported_proto file
  42 _supported_os Linux
  43 _require_drivers copy-on-read
  44
  45 # Internal snapshots are (currently) impossible with refcount_bits=1,
  46 # and generally impossible with external data files
  47 _unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
  48
  49 _require_devices virtio-blk
  50
  51 do_run_qemu()
  52 {
  53     echo Testing: "$@"
  54     (
  55         if ! test -t 0; then
  56             while read cmd; do
  57                 echo $cmd
  58             done
  59         fi
  60         echo quit
  61     ) | $QEMU -nographic -monitor stdio -nodefaults "$@"
  62     echo
  63 }
  64
  65 run_qemu()
  66 {
  67     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |
  68         _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size
  69 }
  70
  71 size=128M
  72
  73 run_test()
  74 {
  75     if [ -n "$BACKING_FILE" ]; then
  76         _make_test_img -b "$BACKING_FILE" -F $IMGFMT $size
  77     else
  78         _make_test_img $size
  79     fi
  80     printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date
  81 }
  82
  83
  84 echo
  85 echo "=== No block devices at all ==="
  86 echo
  87
  88 run_test
  89
  90 echo
  91 echo "=== -drive if=none ==="
  92 echo
  93
  94 run_test -drive driver=file,file="$TEST_IMG",if=none
  95 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none
  96 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0
  97
  98 echo
  99 echo "=== -drive if=virtio ==="
 100 echo
 101
 102 run_test -drive driver=file,file="$TEST_IMG",if=virtio
 103 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio
 104
 105 echo
 106 echo "=== Simple -blockdev ==="
 107 echo
 108
 109 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file
 110 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 111          -blockdev driver=$IMGFMT,file=file,node-name=fmt
 112 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 113          -blockdev driver=raw,file=file,node-name=raw \
 114          -blockdev driver=$IMGFMT,file=raw,node-name=fmt
 115
 116 echo
 117 echo "=== -blockdev with a filter on top ==="
 118 echo
 119
 120 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 121          -blockdev driver=$IMGFMT,file=file,node-name=fmt \
 122          -blockdev driver=copy-on-read,file=fmt,node-name=filter
 123
 124 echo
 125 echo "=== -blockdev with a backing file ==="
 126 echo
 127
 128 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 129
 130 BACKING_FILE="$TEST_IMG.base" \
 131 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 132          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 133          -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt
 134
 135 BACKING_FILE="$TEST_IMG.base" \
 136 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 137          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 138          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 139          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt
 140
 141 # A snapshot should be present on the overlay, but not the backing file
 142 echo Internal snapshots on overlay:
 143 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 144
 145 echo Internal snapshots on backing file:
 146 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 147
 148 echo
 149 echo "=== -blockdev with NBD server on the backing file ==="
 150 echo
 151
 152 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size
 153 cat <<EOF |
 154 nbd_server_start unix:$SOCK_DIR/nbd
 155 nbd_server_add -w backing-fmt
 156 savevm snap0
 157 info snapshots
 158 loadvm snap0
 159 EOF
 160 run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 161          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 162          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 163          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt |
 164          _filter_date
 165
 166 # This time, a snapshot should be created on both files
 167 echo Internal snapshots on overlay:
 168 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 169
 170 echo Internal snapshots on backing file:
 171 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 172
 173 # success, all done
 174 echo "*** done"
 175 rm -f $seq.full
 176 status=0