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 23owner=kwolf@redhat.com 24 25seq=`basename $0` 26echo "QA output created by $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33 rm -f "$SOCK_DIR/nbd" 34} 35trap "_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 52do_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 66run_qemu() 67{ 68 do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_hmp | 69 _filter_generated_node_ids | _filter_imgfmt | _filter_vmstate_size 70} 71 72size=128M 73 74run_test() 75{ 76 if [ -n "$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 85echo 86echo "=== No block devices at all ===" 87echo 88 89run_test 90 91echo 92echo "=== -drive if=none ===" 93echo 94 95run_test -drive driver=file,file="$TEST_IMG",if=none 96run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none 97run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=none -device virtio-blk,drive=none0 98 99echo 100echo "=== -drive if=virtio ===" 101echo 102 103run_test -drive driver=file,file="$TEST_IMG",if=virtio 104run_test -drive driver=$IMGFMT,file="$TEST_IMG",if=virtio 105 106echo 107echo "=== Simple -blockdev ===" 108echo 109 110run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file 111run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 112 -blockdev driver=$IMGFMT,file=file,node-name=fmt 113run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 114 -blockdev driver=raw,file=file,node-name=raw \ 115 -blockdev driver=$IMGFMT,file=raw,node-name=fmt 116 117echo 118echo "=== -blockdev with a filter on top ===" 119echo 120 121run_test -blockdev driver=file,filename="$TEST_IMG",node-name=file \ 122 -blockdev driver=$IMGFMT,file=file,node-name=fmt \ 123 -blockdev driver=copy-on-read,file=fmt,node-name=filter 124 125echo 126echo "=== -blockdev with a backing file ===" 127echo 128 129TEST_IMG="$TEST_IMG.base" _make_test_img $size 130 131BACKING_FILE="$TEST_IMG.base" \ 132run_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=$IMGFMT,file=file,backing=backing-file,node-name=fmt 135 136BACKING_FILE="$TEST_IMG.base" \ 137run_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 143echo Internal snapshots on overlay: 144$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 145 146echo Internal snapshots on backing file: 147$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 148 149echo 150echo "=== -blockdev with NBD server on the backing file ===" 151echo 152 153_make_test_img -b "$TEST_IMG.base" -F $IMGFMT $size 154cat <<EOF | 155nbd_server_start unix:$SOCK_DIR/nbd 156nbd_server_add -w backing-fmt 157savevm snap0 158info snapshots 159loadvm snap0 160EOF 161run_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 168echo Internal snapshots on overlay: 169$QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size 170 171echo Internal snapshots on backing file: 172$QEMU_IMG snapshot -l "$TEST_IMG.base" | _filter_date | _filter_vmstate_size 173 174# success, all done 175echo "*** done" 176rm -f $seq.full 177status=0 178