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" 30tmp=/tmp/$$ 31status=1 # failure is the default! 32 33_cleanup() 34{ 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_supported_os Linux 47 48qemu_comm_method="monitor" 49 50 51TEST_IMG="$TEST_IMG.orig" _make_test_img 64M 52TEST_IMG="$TEST_IMG.base" _make_test_img 64M 53_make_test_img 64M 54_img_info | _filter_img_info 55 56echo 57echo "=== HMP commit ===" 58echo 59# bdrv_make_empty() involves a header update for qcow2 60 61# Test that a backing file isn't written 62_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base" 63_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 64_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 65_cleanup_qemu 66_img_info | _filter_img_info 67 68# Make sure that if there was a backing file that was just overridden on the 69# command line, that backing file is retained, with the right format 70_make_test_img -F raw -b "$TEST_IMG.orig" 64M 71_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base",backing.driver=$IMGFMT 72_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 73_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 74_cleanup_qemu 75_img_info | _filter_img_info 76 77echo 78echo "=== Marking image dirty (lazy refcounts) ===" 79echo 80 81# Test that a backing file isn't written 82_make_test_img 64M 83$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 84_img_info | _filter_img_info 85 86# Make sure that if there was a backing file that was just overridden on the 87# command line, that backing file is retained, with the right format 88_make_test_img -F raw -b "$TEST_IMG.orig" 64M 89$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,backing.driver=$IMGFMT,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 90_img_info | _filter_img_info 91 92# success, all done 93echo '*** done' 94rm -f $seq.full 95status=0 96