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 $seq" 26 27here="$PWD" 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40# Any format supporting backing files 41_supported_fmt qed qcow qcow2 vmdk 42_supported_proto file 43_supported_os Linux 44_unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" 45 46TEST_IMG_REL=$(basename "$TEST_IMG") 47 48echo 49echo '=== Reconstructable filename ===' 50echo 51 52TEST_IMG="$TEST_IMG.base" _make_test_img 64M 53_make_test_img -b "$TEST_IMG_REL.base" 64M 54# qemu should be able to reconstruct the filename, so relative backing names 55# should work 56TEST_IMG="json:{'driver':'$IMGFMT','file':{'driver':'file','filename':'$TEST_IMG'}}" \ 57 _img_info | _filter_img_info 58 59echo 60echo '=== Non-reconstructable filename ===' 61echo 62 63# Across blkdebug without a config file, you cannot reconstruct filenames, so 64# qemu is incapable of knowing the directory of the top image 65TEST_IMG="json:{ 66 'driver': '$IMGFMT', 67 'file': { 68 'driver': 'blkdebug', 69 'image': { 70 'driver': 'file', 71 'filename': '$TEST_IMG' 72 }, 73 'set-state': [ 74 { 75 'event': 'read_aio', 76 'new_state': 42 77 } 78 ] 79 } 80}" _img_info | _filter_img_info 81 82echo 83echo '=== Backing name is always relative to the backed image ===' 84echo 85 86# omit the image size; it should work anyway 87_make_test_img -b "$TEST_IMG_REL.base" 88 89 90# success, all done 91echo '*** done' 92rm -f $seq.full 93status=0 94