1#!/usr/bin/env bash 2# 3# Test qcow2 with external data files 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 $TEST_IMG.data 33 rm -f $TEST_IMG.src 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40 41_supported_fmt qcow2 42_supported_proto file 43_supported_os Linux 44 45echo 46echo "=== Create and open image with external data file ===" 47echo 48 49echo "With data file name in the image:" 50IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M 51_check_test_img 52 53$QEMU_IO -c "open $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 54$QEMU_IO -c "open -odata-file.filename=$TEST_IMG.data $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 55$QEMU_IO -c "open -odata-file.filename=inexistent $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 56 57echo 58echo "Data file required, but without data file name in the image:" 59$QEMU_IMG amend -odata_file= $TEST_IMG 60 61$QEMU_IO -c "open $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 62$QEMU_IO -c "open -odata-file.filename=$TEST_IMG.data $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 63$QEMU_IO -c "open -odata-file.filename=inexistent $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 64 65echo 66echo "Setting data-file for an image with internal data:" 67_make_test_img 64M 68 69$QEMU_IO -c "open -odata-file.filename=$TEST_IMG.data $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 70$QEMU_IO -c "open -odata-file.filename=inexistent $TEST_IMG" -c "read -P 0 0 64k" 2>&1 | _filter_qemu_io | _filter_testdir 71 72echo 73echo "=== Conflicting features ===" 74echo 75 76echo "Convert to compressed target with data file:" 77TEST_IMG="$TEST_IMG.src" _make_test_img 64M 78 79$QEMU_IO -c 'write -P 0x11 0 1M' \ 80 -f $IMGFMT "$TEST_IMG.src" | 81 _filter_qemu_io 82 83$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c -odata_file="$TEST_IMG.data" \ 84 "$TEST_IMG.src" "$TEST_IMG" 85 86echo 87echo "Convert uncompressed, then write compressed data manually:" 88$QEMU_IMG convert -f $IMGFMT -O $IMGFMT -odata_file="$TEST_IMG.data" \ 89 "$TEST_IMG.src" "$TEST_IMG" 90$QEMU_IMG compare "$TEST_IMG.src" "$TEST_IMG" 91 92$QEMU_IO -c 'write -c -P 0x22 0 1M' \ 93 -f $IMGFMT "$TEST_IMG" | 94 _filter_qemu_io 95_check_test_img 96 97echo 98echo "Take an internal snapshot:" 99 100$QEMU_IMG snapshot -c test "$TEST_IMG" 101_check_test_img 102 103echo 104echo "=== Standalone image with external data file (efficient) ===" 105echo 106 107IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M 108 109echo -n "qcow2 file size before I/O: " 110du -b $TEST_IMG | cut -f1 111 112# Create image with the following layout 113# 0-1 MB: Unallocated 114# 1-2 MB: Written (pattern 0x11) 115# 2-3 MB: Discarded 116# 3-4 MB: Zero write over discarded space 117# 4-5 MB: Zero write over written space 118# 5-6 MB: Zero write over unallocated space 119 120echo 121$QEMU_IO -c 'write -P 0x11 1M 4M' \ 122 -c 'discard 2M 2M' \ 123 -c 'write -z 3M 3M' \ 124 -f $IMGFMT "$TEST_IMG" | 125 _filter_qemu_io 126_check_test_img 127 128echo 129$QEMU_IMG map --output=json "$TEST_IMG" 130 131echo 132$QEMU_IO -c 'read -P 0 0 1M' \ 133 -c 'read -P 0x11 1M 1M' \ 134 -c 'read -P 0 2M 4M' \ 135 -f $IMGFMT "$TEST_IMG" | 136 _filter_qemu_io 137 138# Zero clusters are only marked as such in the qcow2 metadata, but contain 139# stale data in the external data file 140echo 141$QEMU_IO -c 'read -P 0 0 1M' \ 142 -c 'read -P 0x11 1M 1M' \ 143 -c 'read -P 0 2M 2M' \ 144 -c 'read -P 0x11 4M 1M' \ 145 -c 'read -P 0 5M 1M' \ 146 -f raw "$TEST_IMG.data" | 147 _filter_qemu_io 148 149 150echo -n "qcow2 file size after I/O: " 151du -b $TEST_IMG | cut -f1 152 153echo 154echo "=== Standalone image with external data file (valid raw) ===" 155echo 156 157IMGOPTS="data_file=$TEST_IMG.data,data_file_raw=on" _make_test_img 64M 158 159echo -n "qcow2 file size before I/O: " 160du -b $TEST_IMG | cut -f1 161 162echo 163$QEMU_IO -c 'write -P 0x11 1M 4M' \ 164 -c 'discard 2M 2M' \ 165 -c 'write -z 3M 3M' \ 166 -f $IMGFMT "$TEST_IMG" | 167 _filter_qemu_io 168_check_test_img 169 170echo 171$QEMU_IMG map --output=json "$TEST_IMG" 172 173echo 174$QEMU_IO -c 'read -P 0 0 1M' \ 175 -c 'read -P 0x11 1M 1M' \ 176 -c 'read -P 0 2M 4M' \ 177 -f $IMGFMT "$TEST_IMG" | 178 _filter_qemu_io 179 180echo 181$QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.data" 182 183echo -n "qcow2 file size after I/O: " 184du -b $TEST_IMG | cut -f1 185 186echo 187echo "=== bdrv_co_block_status test for file and offset=0 ===" 188echo 189 190IMGOPTS="data_file=$TEST_IMG.data" _make_test_img 64M 191 192$QEMU_IO -c 'write -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io 193$QEMU_IO -c 'read -P 0x11 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io 194$QEMU_IMG map --output=human "$TEST_IMG" | _filter_testdir 195$QEMU_IMG map --output=json "$TEST_IMG" 196 197# success, all done 198echo "*** done" 199rm -f $seq.full 200status=0 201