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