1#!/bin/bash 2# 3# Test that temporary backing file overrides (on the command line or in 4# blockdev-add) don't replace the original path stored in the image during 5# header updates. 6# 7# Copyright (C) 2015 Red Hat, Inc. 8# 9# This program is free software; you can redistribute it and/or modify 10# it under the terms of the GNU General Public License as published by 11# the Free Software Foundation; either version 2 of the License, or 12# (at your option) any later version. 13# 14# This program is distributed in the hope that it will be useful, 15# but WITHOUT ANY WARRANTY; without even the implied warranty of 16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17# GNU General Public License for more details. 18# 19# You should have received a copy of the GNU General Public License 20# along with this program. If not, see <http://www.gnu.org/licenses/>. 21# 22 23# creator 24owner=kwolf@redhat.com 25 26seq="$(basename $0)" 27echo "QA output created by $seq" 28 29here="$PWD" 30status=1 # failure is the default! 31 32_cleanup() 33{ 34 _cleanup_qemu 35 _cleanup_test_img 36} 37trap "_cleanup; exit \$status" 0 1 2 3 15 38 39# get standard environment, filters and checks 40. ./common.rc 41. ./common.filter 42. ./common.qemu 43 44_supported_fmt qcow2 45_supported_proto generic 46_unsupported_proto vxhs 47_supported_os Linux 48# We are going to use lazy-refcounts 49_unsupported_imgopts 'compat=0.10' 50 51qemu_comm_method="monitor" 52 53 54TEST_IMG="$TEST_IMG.orig" _make_test_img 64M 55TEST_IMG="$TEST_IMG.base" _make_test_img 64M 56_make_test_img 64M 57_img_info | _filter_img_info 58 59echo 60echo "=== HMP commit ===" 61echo 62# bdrv_make_empty() involves a header update for qcow2 63 64# Test that a backing file isn't written 65_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base" 66_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 67_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 68_cleanup_qemu 69_img_info | _filter_img_info 70 71# Make sure that if there was a backing file that was just overridden on the 72# command line, that backing file is retained, with the right format 73_make_test_img -F raw -b "$TEST_IMG.orig" 64M 74_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base",backing.driver=$IMGFMT 75_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 76_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 77_cleanup_qemu 78_img_info | _filter_img_info 79 80echo 81echo "=== Marking image dirty (lazy refcounts) ===" 82echo 83 84# Test that a backing file isn't written 85_make_test_img 64M 86$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 87_img_info | _filter_img_info 88 89# Make sure that if there was a backing file that was just overridden on the 90# command line, that backing file is retained, with the right format 91_make_test_img -F raw -b "$TEST_IMG.orig" 64M 92$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,backing.driver=$IMGFMT,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 93_img_info | _filter_img_info 94 95# success, all done 96echo '*** done' 97rm -f $seq.full 98status=0 99