1#!/bin/bash 2# 3# Test case for relative backing file names in complex BDS trees 4# 5# Copyright (C) 2014 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=mreitz@redhat.com 23 24seq="$(basename $0)" 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32} 33trap "_cleanup; exit \$status" 0 1 2 3 15 34 35# get standard environment, filters and checks 36. ./common.rc 37. ./common.filter 38 39# Any format supporting backing files 40_supported_fmt qed qcow qcow2 vmdk 41_supported_proto file 42_supported_os Linux 43_unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" 44 45TEST_IMG_REL=$(basename "$TEST_IMG") 46 47echo 48echo '=== Reconstructable filename ===' 49echo 50 51TEST_IMG="$TEST_IMG.base" _make_test_img 64M 52_make_test_img -b "$TEST_IMG_REL.base" 64M 53# qemu should be able to reconstruct the filename, so relative backing names 54# should work 55TEST_IMG="json:{'driver':'$IMGFMT','file':{'driver':'file','filename':'$TEST_IMG'}}" \ 56 _img_info | _filter_img_info 57 58echo 59echo '=== Non-reconstructable filename ===' 60echo 61 62# Across blkdebug without a config file, you cannot reconstruct filenames, so 63# qemu is incapable of knowing the directory of the top image 64TEST_IMG="json:{ 65 'driver': '$IMGFMT', 66 'file': { 67 'driver': 'blkdebug', 68 'image': { 69 'driver': 'file', 70 'filename': '$TEST_IMG' 71 }, 72 'set-state': [ 73 { 74 'event': 'read_aio', 75 'new_state': 42 76 } 77 ] 78 } 79}" _img_info | _filter_img_info 80 81echo 82echo '=== Backing name is always relative to the backed image ===' 83echo 84 85# omit the image size; it should work anyway 86_make_test_img -b "$TEST_IMG_REL.base" 87 88 89# success, all done 90echo '*** done' 91rm -f $seq.full 92status=0 93