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1 #!/usr/bin/env bash 2 # group: rw auto quick snapshot 3 # 4 # Test which nodes are involved in internal snapshots 5 # 6 # Copyright (C) 2019 Red Hat, Inc. 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=kwolf@redhat.com 24 25 seq=`basename $0` 26 echo "QA output created by $seq" 27 28 status=1 # failure is the default! 29 30 _cleanup() 31 { 32 _cleanup_test_img 33 rm -f "$SOCK_DIR/nbd" 34 } 35 trap "_cleanup; exit \$status" 0 1 2 3 15 36 37 # get standard environment, filters and checks 38 . ./common.rc 39 . ./common.filter 40 41 _supported_fmt qcow2 42 _supported_proto file 43 _supported_os Linux 44 _require_drivers copy-on-read 45 46 # Internal snapshots are (currently) impossible with refcount_bits=1, 47 # and generally impossible with external data files 48 _unsupported_imgopts 'refcount_bits=1[^0-9]' data_file 49 50 _require_devices virtio-blk 51 52 do_run_qemu() 53 { 54 echo Testing: "$@" 55 ( 56 if ! test -t 0; then 57 while read cmd; do 58 echo $cmd 59 done 60 fi 61 echo quit 62 ) | $QEMU -nographic -monitor stdio -nodefaults "$@" 63 echo 64 } 65 66 run_qemu() 67 { 68 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp | 69 _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size 70 } 71 72 size=128M 73 74 run_test() 75 { 76 if [ -n "$BACKING_FILE" ]; then 77 _make_test_img -b "$BACKING_FILE" -F $IMGFMT $size 78 else 79 _make_test_img $size 80 fi 81 printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date 82 } 83 84 85 echo 86 echo "=== No block devices at all ===" 87 echo 88 89 run_test 90 91 echo 92 echo "=== -drive if=none ===" 93 echo 94 95 run_test -drive driver=file,file="$TEST_IMG",if=none 96 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none 97 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0 98 99 echo 100 echo "=== -drive if=virtio ===" 101 echo 102 103 run_test -drive driver=file,file="$TEST_IMG",if=virtio 104 run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio 105 106 echo 107 echo "=== Simple -blockdev ===" 108 echo 109 110 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file 111 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 112 -blockdev driver=$IMGFMT,file=file,node-name=fmt 113 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 114 -blockdev driver=raw,file=file,node-name=raw \ 115 -blockdev driver=$IMGFMT,file=raw,node-name=fmt 116 117 echo 118 echo "=== -blockdev with a filter on top ===" 119 echo 120 121 run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 122 -blockdev driver=$IMGFMT,file=file,node-name=fmt \ 123 -blockdev driver=copy-on-read,file=fmt,node-name=filter 124 125 echo 126 echo "=== -blockdev with a backing file ===" 127 echo 128 129 TEST_IMG="$TEST_IMG.base" _make_test_img $size 130 131 BACKING_FILE="$TEST_IMG.base" \ 132 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 133 -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 134 -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt 135 136 BACKING_FILE="$TEST_IMG.base" \ 137 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 138 -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \ 139 -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 140 -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt 141 142 # A snapshot should be present on the overlay, but not the backing file 143 echo Internal snapshots on overlay: 144 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 145 146 echo Internal snapshots on backing file: 147 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 148 149 echo 150 echo "=== -blockdev with NBD server on the backing file ===" 151 echo 152 153 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size 154 cat <<EOF | 155 nbd_server_start unix:$SOCK_DIR/nbd 156 nbd_server_add -w backing-fmt 157 savevm snap0 158 info snapshots 159 loadvm snap0 160 EOF 161 run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 162 -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \ 163 -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 164 -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt | 165 _filter_date 166 167 # This time, a snapshot should be created on both files 168 echo Internal snapshots on overlay: 169 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 170 171 echo Internal snapshots on backing file: 172 $QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 173 174 # success, all done 175 echo "*** done" 176 rm -f $seq.full 177 status=0