1#!/bin/bash 2# 3# Test export internal snapshot by qemu-nbd, convert it by qemu-img. 4# 5# Copyright (C) 2013 IBM, Inc. 6# 7# Based on 029. 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=xiawenc@linux.vnet.ibm.com 25 26seq=`basename $0` 27echo "QA output created by $seq" 28 29here=`pwd` 30tmp=/tmp/$$ 31status=1 # failure is the default! 32 33nbd_unix_socket=$TEST_DIR/test_qemu_nbd_socket 34nbd_snapshot_img="nbd:unix:$nbd_unix_socket" 35rm -f "${TEST_DIR}/qemu-nbd.pid" 36 37_cleanup_nbd() 38{ 39 local NBD_SNAPSHOT_PID 40 if [ -f "${TEST_DIR}/qemu-nbd.pid" ]; then 41 read NBD_SNAPSHOT_PID < "${TEST_DIR}/qemu-nbd.pid" 42 rm -f "${TEST_DIR}/qemu-nbd.pid" 43 if [ -n "$NBD_SNAPSHOT_PID" ]; then 44 kill "$NBD_SNAPSHOT_PID" 45 fi 46 fi 47 rm -f "$nbd_unix_socket" 48} 49 50_wait_for_nbd() 51{ 52 for ((i = 0; i < 300; i++)) 53 do 54 if [ -r "$nbd_unix_socket" ]; then 55 return 56 fi 57 sleep 0.1 58 done 59 echo "Failed in check of unix socket created by qemu-nbd" 60 exit 1 61} 62 63converted_image=$TEST_IMG.converted 64 65_export_nbd_snapshot() 66{ 67 _cleanup_nbd 68 $QEMU_NBD -v -t -k "$nbd_unix_socket" "$TEST_IMG" -l $1 & 69 _wait_for_nbd 70} 71 72_export_nbd_snapshot1() 73{ 74 _cleanup_nbd 75 $QEMU_NBD -v -t -k "$nbd_unix_socket" "$TEST_IMG" -l snapshot.name=$1 & 76 _wait_for_nbd 77} 78 79_cleanup() 80{ 81 _cleanup_nbd 82 _cleanup_test_img 83 rm -f "$converted_image" 84} 85trap "_cleanup; exit \$status" 0 1 2 3 15 86 87# get standard environment, filters and checks 88. ./common.rc 89. ./common.filter 90. ./common.pattern 91 92_supported_fmt qcow2 93_supported_proto file 94_supported_os Linux 95_require_command QEMU_NBD 96# Internal snapshots are (currently) impossible with refcount_bits=1 97_unsupported_imgopts 'refcount_bits=1[^0-9]' 98 99# Use -f raw instead of -f $IMGFMT for the NBD connection 100QEMU_IO_NBD="$QEMU_IO -f raw --cache=$CACHEMODE" 101 102echo 103echo "== preparing image ==" 104_make_test_img 64M 105$QEMU_IO -c 'write -P 0xa 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io 106$QEMU_IO -c 'write -P 0xb 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io 107$QEMU_IMG snapshot -c sn1 "$TEST_IMG" 108$QEMU_IO -c 'write -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io 109$QEMU_IO -c 'write -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io 110_check_test_img 111 112echo 113echo "== verifying the image file with patterns ==" 114$QEMU_IO -c 'read -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io 115$QEMU_IO -c 'read -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io 116 117_export_nbd_snapshot sn1 118 119echo 120echo "== verifying the exported snapshot with patterns, method 1 ==" 121$QEMU_IO_NBD -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 122$QEMU_IO_NBD -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 123 124_export_nbd_snapshot1 sn1 125 126echo 127echo "== verifying the exported snapshot with patterns, method 2 ==" 128$QEMU_IO_NBD -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 129$QEMU_IO_NBD -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 130 131$QEMU_IMG convert "$TEST_IMG" -l sn1 -O qcow2 "$converted_image" 132 133echo 134echo "== verifying the converted snapshot with patterns, method 1 ==" 135$QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io 136$QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io 137 138$QEMU_IMG convert "$TEST_IMG" -l snapshot.name=sn1 -O qcow2 "$converted_image" 139 140echo 141echo "== verifying the converted snapshot with patterns, method 2 ==" 142$QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io 143$QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io 144 145# success, all done 146echo "*** done" 147rm -f $seq.full 148status=0 149