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 do_run_qemu()
  50 {
  51     echo Testing: "$@"
  52     (
  53         if ! test -t 0; then
  54             while read cmd; do
  55                 echo $cmd
  56             done
  57         fi
  58         echo quit
  59     ) | $QEMU -nographic -monitor stdio -nodefaults "$@"
  60     echo
  61 }
  62
  63 run_qemu()
  64 {
  65     do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp |
  66         _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size
  67 }
  68
  69 size=128M
  70
  71 run_test()
  72 {
  73     if [ -n "$BACKING_FILE" ]; then
  74         _make_test_img -b "$BACKING_FILE" $size
  75     else
  76         _make_test_img $size
  77     fi
  78     printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date
  79 }
  80
  81
  82 echo
  83 echo "=== No block devices at all ==="
  84 echo
  85
  86 run_test
  87
  88 echo
  89 echo "=== -drive if=none ==="
  90 echo
  91
  92 run_test -drive driver=file,file="$TEST_IMG",if=none
  93 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none
  94 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0
  95
  96 echo
  97 echo "=== -drive if=virtio ==="
  98 echo
  99
 100 run_test -drive driver=file,file="$TEST_IMG",if=virtio
 101 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio
 102
 103 echo
 104 echo "=== Simple -blockdev ==="
 105 echo
 106
 107 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file
 108 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 109          -blockdev driver=$IMGFMT,file=file,node-name=fmt
 110 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 111          -blockdev driver=raw,file=file,node-name=raw \
 112          -blockdev driver=$IMGFMT,file=raw,node-name=fmt
 113
 114 echo
 115 echo "=== -blockdev with a filter on top ==="
 116 echo
 117
 118 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 119          -blockdev driver=$IMGFMT,file=file,node-name=fmt \
 120          -blockdev driver=copy-on-read,file=fmt,node-name=filter
 121
 122 echo
 123 echo "=== -blockdev with a backing file ==="
 124 echo
 125
 126 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 127
 128 BACKING_FILE="$TEST_IMG.base" \
 129 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 130          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 131          -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt
 132
 133 BACKING_FILE="$TEST_IMG.base" \
 134 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 135          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 136          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 137          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt
 138
 139 # A snapshot should be present on the overlay, but not the backing file
 140 echo Internal snapshots on overlay:
 141 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 142
 143 echo Internal snapshots on backing file:
 144 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 145
 146 echo
 147 echo "=== -blockdev with NBD server on the backing file ==="
 148 echo
 149
 150 _make_test_img -b "$TEST_IMG.base" $size
 151 cat <<EOF |
 152 nbd_server_start unix:$SOCK_DIR/nbd
 153 nbd_server_add -w backing-fmt
 154 savevm snap0
 155 info snapshots
 156 loadvm snap0
 157 EOF
 158 run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \
 159          -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \
 160          -blockdev driver=file,filename="$TEST_IMG",node-name=file \
 161          -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt |
 162          _filter_date
 163
 164 # This time, a snapshot should be created on both files
 165 echo Internal snapshots on overlay:
 166 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
 167
 168 echo Internal snapshots on backing file:
 169 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size
 170
 171 # success, all done
 172 echo "*** done"
 173 rm -f $seq.full
 174 status=0