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 93# Use -f raw instead of -f $IMGFMT for the NBD connection 94QEMU_IO_NBD="$QEMU_IO -f raw --cache=$CACHEMODE" 95 96echo 97echo "== preparing image ==" 98_make_test_img 64M 99$QEMU_IO -c 'write -P 0xa 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io 100$QEMU_IO -c 'write -P 0xb 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io 101$QEMU_IMG snapshot -c sn1 "$TEST_IMG" 102$QEMU_IO -c 'write -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io 103$QEMU_IO -c 'write -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io 104_check_test_img 105 106echo 107echo "== verifying the image file with patterns ==" 108$QEMU_IO -c 'read -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io 109$QEMU_IO -c 'read -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io 110 111_export_nbd_snapshot sn1 112 113echo 114echo "== verifying the exported snapshot with patterns, method 1 ==" 115$QEMU_IO_NBD -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 116$QEMU_IO_NBD -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 117 118_export_nbd_snapshot1 sn1 119 120echo 121echo "== verifying the exported snapshot with patterns, method 2 ==" 122$QEMU_IO_NBD -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 123$QEMU_IO_NBD -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io 124 125$QEMU_IMG convert "$TEST_IMG" -l sn1 -O qcow2 "$converted_image" 126 127echo 128echo "== verifying the converted snapshot with patterns, method 1 ==" 129$QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io 130$QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io 131 132$QEMU_IMG convert "$TEST_IMG" -l snapshot.name=sn1 -O qcow2 "$converted_image" 133 134echo 135echo "== verifying the converted snapshot with patterns, method 2 ==" 136$QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io 137$QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io 138 139# success, all done 140echo "*** done" 141rm -f $seq.full 142status=0 143