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 49do_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 63run_qemu() 64{ 65 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp | 66 _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size 67} 68 69size=128M 70 71run_test() 72{ 73 if [ -n "$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 82echo 83echo "=== No block devices at all ===" 84echo 85 86run_test 87 88echo 89echo "=== -drive if=none ===" 90echo 91 92run_test -drive driver=file,file="$TEST_IMG",if=none 93run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none 94run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0 95 96echo 97echo "=== -drive if=virtio ===" 98echo 99 100run_test -drive driver=file,file="$TEST_IMG",if=virtio 101run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio 102 103echo 104echo "=== Simple -blockdev ===" 105echo 106 107run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file 108run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 109 -blockdev driver=$IMGFMT,file=file,node-name=fmt 110run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 111 -blockdev driver=raw,file=file,node-name=raw \ 112 -blockdev driver=$IMGFMT,file=raw,node-name=fmt 113 114echo 115echo "=== -blockdev with a filter on top ===" 116echo 117 118run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 119 -blockdev driver=$IMGFMT,file=file,node-name=fmt \ 120 -blockdev driver=copy-on-read,file=fmt,node-name=filter 121 122echo 123echo "=== -blockdev with a backing file ===" 124echo 125 126TEST_IMG="$TEST_IMG.base" _make_test_img $size 127 128BACKING_FILE="$TEST_IMG.base" \ 129run_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=$IMGFMT,file=file,backing=backing-file,node-name=fmt 132 133BACKING_FILE="$TEST_IMG.base" \ 134run_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 140echo Internal snapshots on overlay: 141$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 142 143echo Internal snapshots on backing file: 144$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 145 146echo 147echo "=== -blockdev with NBD server on the backing file ===" 148echo 149 150_make_test_img -b "$TEST_IMG.base" $size 151cat <<EOF | 152nbd_server_start unix:$SOCK_DIR/nbd 153nbd_server_add -w backing-fmt 154savevm snap0 155info snapshots 156loadvm snap0 157EOF 158run_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 165echo Internal snapshots on overlay: 166$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 167 168echo Internal snapshots on backing file: 169$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 170 171# success, all done 172echo "*** done" 173rm -f $seq.full 174status=0 175