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 22owner=kwolf@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32 rm -f "$SOCK_DIR/nbd" 33} 34trap "_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_unsupported_imgopts 'refcount_bits=1[^0-9]' 47 48do_run_qemu() 49{ 50 echo Testing: "$@" 51 ( 52 if ! test -t 0; then 53 while read cmd; do 54 echo $cmd 55 done 56 fi 57 echo quit 58 ) | $QEMU -nographic -monitor stdio -nodefaults "$@" 59 echo 60} 61 62run_qemu() 63{ 64 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp | 65 _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size 66} 67 68size=128M 69 70run_test() 71{ 72 _make_test_img $size 73 printf "savevm snap0\ninfo snapshots\nloadvm snap0\n" | run_qemu "$@" | _filter_date 74} 75 76 77echo 78echo "=== No block devices at all ===" 79echo 80 81run_test 82 83echo 84echo "=== -drive if=none ===" 85echo 86 87run_test -drive driver=file,file="$TEST_IMG",if=none 88run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none 89run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0 90 91echo 92echo "=== -drive if=virtio ===" 93echo 94 95run_test -drive driver=file,file="$TEST_IMG",if=virtio 96run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio 97 98echo 99echo "=== Simple -blockdev ===" 100echo 101 102run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file 103run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 104 -blockdev driver=$IMGFMT,file=file,node-name=fmt 105run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 106 -blockdev driver=raw,file=file,node-name=raw \ 107 -blockdev driver=$IMGFMT,file=raw,node-name=fmt 108 109echo 110echo "=== -blockdev with a filter on top ===" 111echo 112 113run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 114 -blockdev driver=$IMGFMT,file=file,node-name=fmt \ 115 -blockdev driver=copy-on-read,file=fmt,node-name=filter 116 117echo 118echo "=== -blockdev with a backing file ===" 119echo 120 121TEST_IMG="$TEST_IMG.base" _make_test_img $size 122 123IMGOPTS="backing_file=$TEST_IMG.base" \ 124run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 125 -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 126 -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt 127 128IMGOPTS="backing_file=$TEST_IMG.base" \ 129run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 130 -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \ 131 -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 132 -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt 133 134# A snapshot should be present on the overlay, but not the backing file 135echo Internal snapshots on overlay: 136$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 137 138echo Internal snapshots on backing file: 139$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 140 141echo 142echo "=== -blockdev with NBD server on the backing file ===" 143echo 144 145IMGOPTS="backing_file=$TEST_IMG.base" _make_test_img $size 146cat <<EOF | 147nbd_server_start unix:$SOCK_DIR/nbd 148nbd_server_add -w backing-fmt 149savevm snap0 150info snapshots 151loadvm snap0 152EOF 153run_qemu -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 154 -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \ 155 -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 156 -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt | 157 _filter_date 158 159# This time, a snapshot should be created on both files 160echo Internal snapshots on overlay: 161$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 162 163echo Internal snapshots on backing file: 164$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 165 166# success, all done 167echo "*** done" 168rm -f $seq.full 169status=0 170