1#!/usr/bin/env bash 2# group: rw 3# 4# Live snapshot tests 5# 6# This tests live snapshots of images on a running QEMU instance, using 7# QMP commands. Both single disk snapshots, and transactional group 8# snapshots are performed. 9# 10# Copyright (C) 2014 Red Hat, Inc. 11# Copyright (C) 2015 Igalia, S.L. 12# 13# This program is free software; you can redistribute it and/or modify 14# it under the terms of the GNU General Public License as published by 15# the Free Software Foundation; either version 2 of the License, or 16# (at your option) any later version. 17# 18# This program is distributed in the hope that it will be useful, 19# but WITHOUT ANY WARRANTY; without even the implied warranty of 20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21# GNU General Public License for more details. 22# 23# You should have received a copy of the GNU General Public License 24# along with this program. If not, see <http://www.gnu.org/licenses/>. 25# 26 27# creator 28owner=codyprime@gmail.com 29 30seq=`basename $0` 31echo "QA output created by $seq" 32 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 _cleanup_test_img 44 for i in $(seq 1 ${SNAPSHOTS}) 45 do 46 _rm_test_img "${TEST_DIR}/${i}-${snapshot_virt0}" 47 _rm_test_img "${TEST_DIR}/${i}-${snapshot_virt1}" 48 done 49 for img in "${TEST_IMG}".{1,2,base} 50 do 51 _rm_test_img "$img" 52 done 53 54} 55trap "_cleanup; exit \$status" 0 1 2 3 15 56 57# get standard environment, filters and checks 58. ./common.rc 59. ./common.filter 60. ./common.qemu 61 62_supported_fmt qcow2 63_supported_proto file 64 65 66# ${1}: unique identifier for the snapshot filename 67create_single_snapshot() 68{ 69 cmd="{ 'execute': 'blockdev-snapshot-sync', 70 'arguments': { 'device': 'virtio0', 71 'snapshot-file':'${TEST_DIR}/${1}-${snapshot_virt0}', 72 'format': 'qcow2' } }" 73 _send_qemu_cmd $h "${cmd}" "return" 74} 75 76# ${1}: unique identifier for the snapshot filename 77create_group_snapshot() 78{ 79 cmd="{ 'execute': 'transaction', 'arguments': 80 {'actions': [ 81 { 'type': 'blockdev-snapshot-sync', 'data' : 82 { 'device': 'virtio0', 83 'snapshot-file': '${TEST_DIR}/${1}-${snapshot_virt0}' } }, 84 { 'type': 'blockdev-snapshot-sync', 'data' : 85 { 'device': 'virtio1', 86 'snapshot-file': '${TEST_DIR}/${1}-${snapshot_virt1}' } } ] 87 } }" 88 89 _send_qemu_cmd $h "${cmd}" "return" 90} 91 92# ${1}: unique identifier for the snapshot filename 93# ${2}: extra_params to the blockdev-add command 94# ${3}: filename 95do_blockdev_add() 96{ 97 cmd="{ 'execute': 'blockdev-add', 'arguments': 98 { 'driver': 'qcow2', 'node-name': 'snap_${1}', ${2} 99 'file': 100 { 'driver': 'file', 'filename': '${3}', 101 'node-name': 'file_${1}' } } }" 102 _send_qemu_cmd $h "${cmd}" "return" 103} 104 105# ${1}: unique identifier for the snapshot filename 106create_snapshot_image() 107{ 108 base_image="${TEST_DIR}/$((${1}-1))-${snapshot_virt0}" 109 snapshot_file="${TEST_DIR}/${1}-${snapshot_virt0}" 110 TEST_IMG=$snapshot_file _make_test_img -u -b "${base_image}" -F $IMGFMT "$size" 111} 112 113# ${1}: unique identifier for the snapshot filename 114add_snapshot_image() 115{ 116 snapshot_file="${TEST_DIR}/${1}-${snapshot_virt0}" 117 create_snapshot_image "$1" 118 do_blockdev_add "$1" "'backing': null, " "${snapshot_file}" 119} 120 121# ${1}: unique identifier for the snapshot filename 122# ${2}: expected response, defaults to 'return' 123blockdev_snapshot() 124{ 125 cmd="{ 'execute': 'blockdev-snapshot', 126 'arguments': { 'node': 'virtio0', 127 'overlay':'snap_${1}' } }" 128 _send_qemu_cmd $h "${cmd}" "${2:-return}" 129} 130 131size=128M 132 133TEST_IMG="$TEST_IMG.1" _make_test_img $size 134TEST_IMG="$TEST_IMG.2" _make_test_img $size 135 136echo 137echo === Running QEMU === 138echo 139 140qemu_comm_method="qmp" 141_launch_qemu -drive file="${TEST_IMG}.1",if=virtio -drive file="${TEST_IMG}.2",if=virtio 142h=$QEMU_HANDLE 143 144echo 145echo === Sending capabilities === 146echo 147 148_send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" "return" 149 150# Tests for the blockdev-snapshot-sync command 151 152echo 153echo === Create a single snapshot on virtio0 === 154echo 155 156create_single_snapshot 1 157 158 159echo 160echo === Invalid command - missing device and nodename === 161echo 162 163_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', 164 'arguments': { 'snapshot-file':'${TEST_DIR}/1-${snapshot_virt0}', 165 'format': 'qcow2' } }" "error" 166 167echo 168echo === Invalid command - missing snapshot-file === 169echo 170 171_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', 172 'arguments': { 'device': 'virtio0', 173 'format': 'qcow2' } }" "error" 174echo 175echo 176echo === Create several transactional group snapshots === 177echo 178 179for i in $(seq 2 ${SNAPSHOTS}) 180do 181 create_group_snapshot ${i} 182done 183 184# Tests for the blockdev-snapshot command 185 186echo 187echo === Create a couple of snapshots using blockdev-snapshot === 188echo 189 190SNAPSHOTS=$((${SNAPSHOTS}+1)) 191add_snapshot_image ${SNAPSHOTS} 192blockdev_snapshot ${SNAPSHOTS} 193 194SNAPSHOTS=$((${SNAPSHOTS}+1)) 195add_snapshot_image ${SNAPSHOTS} 196blockdev_snapshot ${SNAPSHOTS} 197 198echo 199echo === Invalid command - cannot create a snapshot using a file BDS === 200echo 201 202_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 203 'arguments': { 'node':'virtio0', 204 'overlay':'file_${SNAPSHOTS}' } 205 }" "error" 206 207echo 208echo === Invalid command - snapshot node used as active layer === 209echo 210 211blockdev_snapshot ${SNAPSHOTS} error 212 213_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 214 'arguments': { 'node':'virtio0', 215 'overlay':'virtio0' } 216 }" "error" 217 218_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 219 'arguments': { 'node':'virtio0', 220 'overlay':'virtio1' } 221 }" "error" 222 223echo 224echo === Invalid command - snapshot node used as backing hd === 225echo 226 227blockdev_snapshot $((${SNAPSHOTS}-1)) error 228 229echo 230echo === Invalid command - snapshot node has a backing image === 231echo 232 233SNAPSHOTS=$((${SNAPSHOTS}+1)) 234 235TEST_IMG="$TEST_IMG.base" _make_test_img "$size" 236_make_test_img -b "${TEST_IMG}.base" -F $IMGFMT "$size" 237do_blockdev_add ${SNAPSHOTS} "" "${TEST_IMG}" 238blockdev_snapshot ${SNAPSHOTS} error 239 240echo 241echo === Invalid command - creating loops === 242echo 243 244SNAPSHOTS=$((${SNAPSHOTS}+1)) 245add_snapshot_image ${SNAPSHOTS} 246 247_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 248 'arguments': { 'node':'snap_${SNAPSHOTS}', 249 'overlay':'snap_${SNAPSHOTS}' } 250 }" "error" 251 252SNAPSHOTS=$((${SNAPSHOTS}+1)) 253create_snapshot_image ${SNAPSHOTS} 254do_blockdev_add ${SNAPSHOTS} "'backing': 'snap_$((${SNAPSHOTS}-1))', " \ 255 "${TEST_DIR}/${SNAPSHOTS}-${snapshot_virt0}" 256 257_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 258 'arguments': { 'node':'snap_${SNAPSHOTS}', 259 'overlay':'snap_$((${SNAPSHOTS}-1))' } 260 }" "error" 261 262echo 263echo === Invalid command - The node does not exist === 264echo 265 266blockdev_snapshot $((${SNAPSHOTS}+1)) error 267 268_send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', 269 'arguments': { 'node':'nodevice', 270 'overlay':'snap_${SNAPSHOTS}' } 271 }" "error" 272 273# success, all done 274echo "*** done" 275rm -f $seq.full 276status=0 277