1#!/bin/bash 2# 3# Test vmdk backing file correlation 4# 5# Copyright (C) 2018 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 rm -f "$TEST_IMG.not_base" 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40. ./common.qemu 41 42# This tests vmdk-specific low-level functionality 43_supported_fmt vmdk 44_supported_proto file 45_supported_os Linux 46_unsupported_imgopts "subformat=monolithicFlat" \ 47 "subformat=twoGbMaxExtentFlat" \ 48 "subformat=twoGbMaxExtentSparse" 49 50TEST_IMG="$TEST_IMG.base" _make_test_img 1M 51TEST_IMG="$TEST_IMG.not_base" _make_test_img 1M 52_make_test_img -b "$TEST_IMG.base" 53 54make_opts() 55{ 56 node_name=$1 57 filename=$2 58 backing=$3 59 60 if [ -z "$backing" ]; then 61 backing="null" 62 else 63 backing="'$backing'" 64 fi 65 66 echo "{ 'node-name': '$node_name', 67 'driver': 'vmdk', 68 'file': { 69 'driver': 'file', 70 'filename': '$filename' 71 }, 72 'backing': $backing }" 73} 74 75overlay_opts=$(make_opts overlay "$TEST_IMG" backing) 76base_opts=$(make_opts backing "$TEST_IMG.base") 77not_base_opts=$(make_opts backing "$TEST_IMG.not_base") 78 79not_vmdk_opts="{ 'node-name': 'backing', 'driver': 'null-co' }" 80 81echo 82echo '=== Testing fitting VMDK backing image ===' 83echo 84 85qemu_comm_method=monitor \ 86 _launch_qemu -blockdev "$base_opts" -blockdev "$overlay_opts" 87 88# Should not return an error 89_send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'ops' 90 91_cleanup_qemu 92 93 94echo 95echo '=== Testing unrelated VMDK backing image ===' 96echo 97 98qemu_comm_method=monitor \ 99 _launch_qemu -blockdev "$not_base_opts" -blockdev "$overlay_opts" 100 101# Should fail (gracefully) 102_send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'failed' 103 104_cleanup_qemu 105 106 107echo 108echo '=== Testing non-VMDK backing image ===' 109echo 110 111# FIXME: This is the reason why we have to use two -blockdev 112# invocations. You can only fully override the backing file options 113# if you either specify a node reference (as done here) or the new 114# options contain file.filename (which in this case they do not). 115# In other cases, file.filename will be set to whatever the image 116# header of the overlay contains (which we do not want). I consider 117# this a FIXME because with -blockdev, you cannot specify "partial" 118# options, so setting file.filename but leaving the rest as specified 119# by the user does not make sense. 120qemu_comm_method=monitor \ 121 _launch_qemu -blockdev "$not_vmdk_opts" -blockdev "$overlay_opts" 122 123# Should fail (gracefully) 124_send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'failed' 125 126_cleanup_qemu 127 128 129# success, all done 130echo "*** done" 131rm -f $seq.full 132status=0 133