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