1#!/usr/bin/env 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 $seq" 28 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_qemu 34 _cleanup_test_img 35} 36trap "_cleanup; exit \$status" 0 1 2 3 15 37 38# get standard environment, filters and checks 39. ./common.rc 40. ./common.filter 41. ./common.qemu 42 43_supported_fmt qcow2 44_supported_proto generic 45_supported_os Linux 46# We are going to use lazy-refcounts 47_unsupported_imgopts 'compat=0.10' 48 49qemu_comm_method="monitor" 50 51 52TEST_IMG="$TEST_IMG.orig" _make_test_img 64M 53TEST_IMG="$TEST_IMG.base" _make_test_img 64M 54_make_test_img 64M 55_img_info | _filter_img_info 56 57echo 58echo "=== HMP commit ===" 59echo 60# bdrv_make_empty() involves a header update for qcow2 61 62# Test that a backing file isn't written 63_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base" 64_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 65_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 66_cleanup_qemu 67_img_info | _filter_img_info 68 69# Make sure that if there was a backing file that was just overridden on the 70# command line, that backing file is retained, with the right format 71_make_test_img -F raw -b "$TEST_IMG.orig" 64M 72_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base",backing.driver=$IMGFMT 73_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 74_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 75_cleanup_qemu 76_img_info | _filter_img_info 77 78echo 79echo "=== Marking image dirty (lazy refcounts) ===" 80echo 81 82# Test that a backing file isn't written 83_make_test_img 64M 84$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 85_img_info | _filter_img_info 86 87# Make sure that if there was a backing file that was just overridden on the 88# command line, that backing file is retained, with the right format 89_make_test_img -F raw -b "$TEST_IMG.orig" 64M 90$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,backing.driver=$IMGFMT,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 91_img_info | _filter_img_info 92 93# success, all done 94echo '*** done' 95rm -f $seq.full 96status=0 97