1#!/bin/bash 2# 3# Live snapshot tests 4# 5# This tests live snapshots of images on a running QEMU instance, using 6# QMP commands. Both single disk snapshots, and transactional group 7# snapshots are performed. 8# 9# Copyright (C) 2014 Red Hat, Inc. 10# Copyright (C) 2015 Igalia, S.L. 11# 12# This program is free software; you can redistribute it and/or modify 13# it under the terms of the GNU General Public License as published by 14# the Free Software Foundation; either version 2 of the License, or 15# (at your option) any later version. 16# 17# This program is distributed in the hope that it will be useful, 18# but WITHOUT ANY WARRANTY; without even the implied warranty of 19# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20# GNU General Public License for more details. 21# 22# You should have received a copy of the GNU General Public License 23# along with this program. If not, see <http://www.gnu.org/licenses/>. 24# 25 26# creator 27owner=jcody@redhat.com 28 29seq=`basename $0` 30echo "QA output created by $seq" 31 32here=`pwd` 33status=1 # failure is the default! 34 35snapshot_virt0="snapshot-v0.qcow2" 36snapshot_virt1="snapshot-v1.qcow2" 37 38SNAPSHOTS=10 39 40_cleanup() 41{ 42 _cleanup_qemu 43 for i in $(seq 1 ${SNAPSHOTS}) 44 do 45 rm -f "${TEST_DIR}/${i}-${snapshot_virt0}" 46 rm -f "${TEST_DIR}/${i}-${snapshot_virt1}" 47 done 48 rm -f "${TEST_IMG}.1" "${TEST_IMG}.2" 49 50} 51trap "_cleanup; exit \$status" 0 1 2 3 15 52 53# get standard environment, filters and checks 54. ./common.rc 55. ./common.filter 56. ./common.qemu 57 58_supported_fmt qcow2 59_supported_proto file 60_supported_os Linux 61 62 63# ${1}: unique identifier for the snapshot filename 64function create_single_snapshot() 65{ 66 cmd="{ 'execute': 'blockdev-snapshot-sync', 67 'arguments': { 'device': 'virtio0', 68 'snapshot-file':'${TEST_DIR}/${1}-${snapshot_virt0}', 69 'format': 'qcow2' } }" 70 _send_qemu_cmd $h "${cmd}" "return" 71} 72 73# ${1}: unique identifier for the snapshot filename 74function create_group_snapshot() 75{ 76 cmd="{ 'execute': 'transaction', 'arguments': 77 {'actions': [ 78 { 'type': 'blockdev-snapshot-sync', 'data' : 79 { 'device': 'virtio0', 80 'snapshot-file': '${TEST_DIR}/${1}-${snapshot_virt0}' } }, 81 { 'type': 'blockdev-snapshot-sync', 'data' : 82 { 'device': 'virtio1', 83 'snapshot-file': '${TEST_DIR}/${1}-${snapshot_virt1}' } } ] 84 } }" 85 86 _send_qemu_cmd $h "${cmd}" "return" 87} 88 89# ${1}: unique identifier for the snapshot filename 90# ${2}: true: open backing images; false: don't open them (default) 91function add_snapshot_image() 92{ 93 if [ "${2}" = "true" ]; then 94 extra_params="" 95 else 96 extra_params="'backing': '', " 97 fi 98 base_image="${TEST_DIR}/$((${1}-1))-${snapshot_virt0}" 99 snapshot_file="${TEST_DIR}/${1}-${snapshot_virt0}" 100 _make_test_img -b "${base_image}" "$size" 101 mv "${TEST_IMG}" "${snapshot_file}" 102 cmd="{ 'execute': 'blockdev-add', 'arguments': 103 { 'options': 104 { 'driver': 'qcow2', 'node-name': 'snap_${1}', ${extra_params} 105 'file': 106 { 'driver': 'file', 'filename': '${snapshot_file}', 107 'node-name': 'file_${1}' } } } }" 108 _send_qemu_cmd $h "${cmd}" "return" 109} 110 111# ${1}: unique identifier for the snapshot filename 112# ${2}: expected response, defaults to 'return' 113function blockdev_snapshot() 114{ 115 cmd="{ 'execute': 'blockdev-snapshot', 116 'arguments': { 'node': 'virtio0', 117 'overlay':'snap_${1}' } }" 118 _send_qemu_cmd $h "${cmd}" "${2:-return}" 119} 120 121size=128M 122 123_make_test_img $size 124mv "${TEST_IMG}" "${TEST_IMG}.1" 125_make_test_img $size 126mv "${TEST_IMG}" "${TEST_IMG}.2" 127 128echo 129echo === Running QEMU === 130echo 131 132qemu_comm_method="qmp" 133_launch_qemu -drive file="${TEST_IMG}.1",if=virtio -drive file="${TEST_IMG}.2",if=virtio 134h=$QEMU_HANDLE 135 136echo 137echo === Sending capabilities === 138echo 139 140_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" "return" 141 142# Tests for the blockdev-snapshot-sync command 143 144echo 145echo === Create a single snapshot on virtio0 === 146echo 147 148create_single_snapshot 1 149 150 151echo 152echo === Invalid command - missing device and nodename === 153echo 154 155_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', 156 'arguments': { 'snapshot-file':'${TEST_DIR}/1-${snapshot_virt0}', 157 'format': 'qcow2' } }" "error" 158 159echo 160echo === Invalid command - missing snapshot-file === 161echo 162 163_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', 164 'arguments': { 'device': 'virtio0', 165 'format': 'qcow2' } }" "error" 166echo 167echo 168echo === Create several transactional group snapshots === 169echo 170 171for i in $(seq 2 ${SNAPSHOTS}) 172do 173 create_group_snapshot ${i} 174done 175 176# Tests for the blockdev-snapshot command 177 178echo 179echo === Create a couple of snapshots using blockdev-snapshot === 180echo 181 182SNAPSHOTS=$((${SNAPSHOTS}+1)) 183add_snapshot_image ${SNAPSHOTS} 184blockdev_snapshot ${SNAPSHOTS} 185 186SNAPSHOTS=$((${SNAPSHOTS}+1)) 187add_snapshot_image ${SNAPSHOTS} 188blockdev_snapshot ${SNAPSHOTS} 189 190echo 191echo === Invalid command - cannot create a snapshot using a file BDS === 192echo 193 194_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 195 'arguments': { 'node':'virtio0', 196 'overlay':'file_${SNAPSHOTS}' } 197 }" "error" 198 199echo 200echo === Invalid command - snapshot node used as active layer === 201echo 202 203blockdev_snapshot ${SNAPSHOTS} error 204 205_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 206 'arguments': { 'node':'virtio0', 207 'overlay':'virtio0' } 208 }" "error" 209 210_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 211 'arguments': { 'node':'virtio0', 212 'overlay':'virtio1' } 213 }" "error" 214 215echo 216echo === Invalid command - snapshot node used as backing hd === 217echo 218 219blockdev_snapshot $((${SNAPSHOTS}-1)) error 220 221echo 222echo === Invalid command - snapshot node has a backing image === 223echo 224 225SNAPSHOTS=$((${SNAPSHOTS}+1)) 226add_snapshot_image ${SNAPSHOTS} true 227blockdev_snapshot ${SNAPSHOTS} error 228 229echo 230echo === Invalid command - The node does not exist === 231echo 232 233blockdev_snapshot $((${SNAPSHOTS}+1)) error 234 235_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 236 'arguments': { 'node':'nodevice', 237 'overlay':'snap_${SNAPSHOTS}' } 238 }" "error" 239 240# success, all done 241echo "*** done" 242rm -f $seq.full 243status=0 244