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# and generally impossible with external data files 47_unsupported_imgopts 'refcount_bits=1[^0-9]' data_file 48 49_require_devices virtio-blk 50 51do_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 65run_qemu() 66{ 67 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp | 68 _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size 69} 70 71size=128M 72 73run_test() 74{ 75 if [ -n "$BACKING_FILE" ]; then 76 _make_test_img -b "$BACKING_FILE" $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 84echo 85echo "=== No block devices at all ===" 86echo 87 88run_test 89 90echo 91echo "=== -drive if=none ===" 92echo 93 94run_test -drive driver=file,file="$TEST_IMG",if=none 95run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none 96run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0 97 98echo 99echo "=== -drive if=virtio ===" 100echo 101 102run_test -drive driver=file,file="$TEST_IMG",if=virtio 103run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio 104 105echo 106echo "=== Simple -blockdev ===" 107echo 108 109run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file 110run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 111 -blockdev driver=$IMGFMT,file=file,node-name=fmt 112run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 113 -blockdev driver=raw,file=file,node-name=raw \ 114 -blockdev driver=$IMGFMT,file=raw,node-name=fmt 115 116echo 117echo "=== -blockdev with a filter on top ===" 118echo 119 120run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 121 -blockdev driver=$IMGFMT,file=file,node-name=fmt \ 122 -blockdev driver=copy-on-read,file=fmt,node-name=filter 123 124echo 125echo "=== -blockdev with a backing file ===" 126echo 127 128TEST_IMG="$TEST_IMG.base" _make_test_img $size 129 130BACKING_FILE="$TEST_IMG.base" \ 131run_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=$IMGFMT,file=file,backing=backing-file,node-name=fmt 134 135BACKING_FILE="$TEST_IMG.base" \ 136run_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 142echo Internal snapshots on overlay: 143$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 144 145echo Internal snapshots on backing file: 146$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 147 148echo 149echo "=== -blockdev with NBD server on the backing file ===" 150echo 151 152_make_test_img -b "$TEST_IMG.base" $size 153cat <<EOF | 154nbd_server_start unix:$SOCK_DIR/nbd 155nbd_server_add -w backing-fmt 156savevm snap0 157info snapshots 158loadvm snap0 159EOF 160run_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 167echo Internal snapshots on overlay: 168$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 169 170echo Internal snapshots on backing file: 171$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 172 173# success, all done 174echo "*** done" 175rm -f $seq.full 176status=0 177