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 $seq" 28 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_qemu 34 _cleanup_test_img 35} 36trap "_cleanup; exit \$status" 0 1 2 3 15 37 38# get standard environment, filters and checks 39. ./common.rc 40. ./common.filter 41. ./common.qemu 42 43_supported_fmt qcow2 44_supported_proto generic 45_unsupported_proto vxhs 46_supported_os Linux 47# We are going to use lazy-refcounts 48_unsupported_imgopts 'compat=0.10' 49 50qemu_comm_method="monitor" 51 52 53TEST_IMG="$TEST_IMG.orig" _make_test_img 64M 54TEST_IMG="$TEST_IMG.base" _make_test_img 64M 55_make_test_img 64M 56_img_info | _filter_img_info 57 58echo 59echo "=== HMP commit ===" 60echo 61# bdrv_make_empty() involves a header update for qcow2 62 63# Test that a backing file isn't written 64_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base" 65_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 66_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 67_cleanup_qemu 68_img_info | _filter_img_info 69 70# Make sure that if there was a backing file that was just overridden on the 71# command line, that backing file is retained, with the right format 72_make_test_img -F raw -b "$TEST_IMG.orig" 64M 73_launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base",backing.driver=$IMGFMT 74_send_qemu_cmd $QEMU_HANDLE "commit testdisk" "(qemu)" 75_send_qemu_cmd $QEMU_HANDLE '' '(qemu)' 76_cleanup_qemu 77_img_info | _filter_img_info 78 79echo 80echo "=== Marking image dirty (lazy refcounts) ===" 81echo 82 83# Test that a backing file isn't written 84_make_test_img 64M 85$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 86_img_info | _filter_img_info 87 88# Make sure that if there was a backing file that was just overridden on the 89# command line, that backing file is retained, with the right format 90_make_test_img -F raw -b "$TEST_IMG.orig" 64M 91$QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,backing.driver=$IMGFMT,lazy-refcounts=on $TEST_IMG" -c "write 0 4k" | _filter_qemu_io 92_img_info | _filter_img_info 93 94# success, all done 95echo '*** done' 96rm -f $seq.full 97status=0 98