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" 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40 41# Any format supporting backing files 42_supported_fmt qed qcow qcow2 vmdk 43_supported_proto file 44_supported_os Linux 45_unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" 46 47TEST_IMG_REL=$(basename "$TEST_IMG") 48 49echo 50echo '=== Reconstructable filename ===' 51echo 52 53TEST_IMG="$TEST_IMG.base" _make_test_img 64M 54_make_test_img -b "$TEST_IMG_REL.base" 64M 55# qemu should be able to reconstruct the filename, so relative backing names 56# should work 57TEST_IMG="json:{'driver':'$IMGFMT','file':{'driver':'file','filename':'$TEST_IMG'}}" \ 58 _img_info | _filter_img_info 59 60echo 61echo '=== Non-reconstructable filename ===' 62echo 63 64# Across blkdebug without a config file, you cannot reconstruct filenames, so 65# qemu is incapable of knowing the directory of the top image 66TEST_IMG="json:{ 67 'driver': '$IMGFMT', 68 'file': { 69 'driver': 'blkdebug', 70 'image': { 71 'driver': 'file', 72 'filename': '$TEST_IMG' 73 }, 74 'set-state': [ 75 { 76 'event': 'read_aio', 77 'new_state': 42 78 } 79 ] 80 } 81}" _img_info | _filter_img_info 82 83echo 84echo '=== Backing name is always relative to the backed image ===' 85echo 86 87# omit the image size; it should work anyway 88_make_test_img -b "$TEST_IMG_REL.base" 89 90 91# success, all done 92echo '*** done' 93rm -f $seq.full 94status=0 95