| 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 |
| 28 | owner=codyprime@gmail.com |
| 29 | |
| 30 | seq=`basename $0` |
| 31 | echo "QA output created by $seq" |
| 32 | |
| 33 | status=1 # failure is the default! |
| 34 | |
| 35 | snapshot_virt0="snapshot-v0.qcow2" |
| 36 | snapshot_virt1="snapshot-v1.qcow2" |
| 37 | |
| 38 | SNAPSHOTS=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 | } |
| 55 | trap "_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 | # ${1}: unique identifier for the snapshot filename |
| 67 | create_single_snapshot() |
| 68 | { |
| 69 | cmd="{ 'execute': 'blockdev-snapshot-sync', |
| 70 | 'arguments': { 'device': 'virtio0', |
| 71 | 'snapshot-file':'${TEST_DIR}/${1}-${snapshot_virt0}', |
| 72 | 'format': 'qcow2' } }" |
| 73 | _send_qemu_cmd $h "${cmd}" "return" |
| 74 | } |
| 75 | |
| 76 | # ${1}: unique identifier for the snapshot filename |
| 77 | create_group_snapshot() |
| 78 | { |
| 79 | cmd="{ 'execute': 'transaction', 'arguments': |
| 80 | {'actions': [ |
| 81 | { 'type': 'blockdev-snapshot-sync', 'data' : |
| 82 | { 'device': 'virtio0', |
| 83 | 'snapshot-file': '${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 | # ${3}: filename |
| 95 | do_blockdev_add() |
| 96 | { |
| 97 | cmd="{ 'execute': 'blockdev-add', 'arguments': |
| 98 | { 'driver': 'qcow2', 'node-name': 'snap_${1}', ${2} |
| 99 | 'file': |
| 100 | { 'driver': 'file', 'filename': '${3}', |
| 101 | 'node-name': 'file_${1}' } } }" |
| 102 | _send_qemu_cmd $h "${cmd}" "return" |
| 103 | } |
| 104 | |
| 105 | # ${1}: unique identifier for the snapshot filename |
| 106 | create_snapshot_image() |
| 107 | { |
| 108 | base_image="${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 | # ${1}: unique identifier for the snapshot filename |
| 114 | add_snapshot_image() |
| 115 | { |
| 116 | snapshot_file="${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 | # ${2}: expected response, defaults to 'return' |
| 123 | blockdev_snapshot() |
| 124 | { |
| 125 | cmd="{ 'execute': 'blockdev-snapshot', |
| 126 | 'arguments': { 'node': 'virtio0', |
| 127 | 'overlay':'snap_${1}' } }" |
| 128 | _send_qemu_cmd $h "${cmd}" "${2:-return}" |
| 129 | } |
| 130 | |
| 131 | size=128M |
| 132 | |
| 133 | TEST_IMG="$TEST_IMG.1" _make_test_img $size |
| 134 | TEST_IMG="$TEST_IMG.2" _make_test_img $size |
| 135 | |
| 136 | echo |
| 137 | echo === Running QEMU === |
| 138 | echo |
| 139 | |
| 140 | qemu_comm_method="qmp" |
| 141 | _launch_qemu -drive file="${TEST_IMG}.1",if=virtio -drive file="${TEST_IMG}.2",if=virtio |
| 142 | h=$QEMU_HANDLE |
| 143 | |
| 144 | echo |
| 145 | echo === Sending capabilities === |
| 146 | echo |
| 147 | |
| 148 | _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" "return" |
| 149 | |
| 150 | # Tests for the blockdev-snapshot-sync command |
| 151 | |
| 152 | echo |
| 153 | echo === Create a single snapshot on virtio0 === |
| 154 | echo |
| 155 | |
| 156 | create_single_snapshot 1 |
| 157 | |
| 158 | |
| 159 | echo |
| 160 | echo === Invalid command - missing device and nodename === |
| 161 | echo |
| 162 | |
| 163 | _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', |
| 164 | 'arguments': { 'snapshot-file':'${TEST_DIR}/1-${snapshot_virt0}', |
| 165 | 'format': 'qcow2' } }" "error" |
| 166 | |
| 167 | echo |
| 168 | echo === Invalid command - missing snapshot-file === |
| 169 | echo |
| 170 | |
| 171 | _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', |
| 172 | 'arguments': { 'device': 'virtio0', |
| 173 | 'format': 'qcow2' } }" "error" |
| 174 | echo |
| 175 | echo |
| 176 | echo === Create several transactional group snapshots === |
| 177 | echo |
| 178 | |
| 179 | for i in $(seq 2 ${SNAPSHOTS}) |
| 180 | do |
| 181 | create_group_snapshot ${i} |
| 182 | done |
| 183 | |
| 184 | # Tests for the blockdev-snapshot command |
| 185 | |
| 186 | echo |
| 187 | echo === Create a couple of snapshots using blockdev-snapshot === |
| 188 | echo |
| 189 | |
| 190 | SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| 191 | add_snapshot_image ${SNAPSHOTS} |
| 192 | blockdev_snapshot ${SNAPSHOTS} |
| 193 | |
| 194 | SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| 195 | add_snapshot_image ${SNAPSHOTS} |
| 196 | blockdev_snapshot ${SNAPSHOTS} |
| 197 | |
| 198 | echo |
| 199 | echo === Invalid command - cannot create a snapshot using a file BDS === |
| 200 | echo |
| 201 | |
| 202 | _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 203 | 'arguments': { 'node':'virtio0', |
| 204 | 'overlay':'file_${SNAPSHOTS}' } |
| 205 | }" "error" |
| 206 | |
| 207 | echo |
| 208 | echo === Invalid command - snapshot node used as active layer === |
| 209 | echo |
| 210 | |
| 211 | blockdev_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 | |
| 223 | echo |
| 224 | echo === Invalid command - snapshot node used as backing hd === |
| 225 | echo |
| 226 | |
| 227 | blockdev_snapshot $((${SNAPSHOTS}-1)) error |
| 228 | |
| 229 | echo |
| 230 | echo === Invalid command - snapshot node has a backing image === |
| 231 | echo |
| 232 | |
| 233 | SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| 234 | |
| 235 | TEST_IMG="$TEST_IMG.base" _make_test_img "$size" |
| 236 | _make_test_img -b "${TEST_IMG}.base" -F $IMGFMT "$size" |
| 237 | do_blockdev_add ${SNAPSHOTS} "" "${TEST_IMG}" |
| 238 | blockdev_snapshot ${SNAPSHOTS} error |
| 239 | |
| 240 | echo |
| 241 | echo === Invalid command - creating loops === |
| 242 | echo |
| 243 | |
| 244 | SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| 245 | add_snapshot_image ${SNAPSHOTS} |
| 246 | |
| 247 | _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 248 | 'arguments': { 'node':'snap_${SNAPSHOTS}', |
| 249 | 'overlay':'snap_${SNAPSHOTS}' } |
| 250 | }" "error" |
| 251 | |
| 252 | SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| 253 | create_snapshot_image ${SNAPSHOTS} |
| 254 | do_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 | |
| 262 | echo |
| 263 | echo === Invalid command - The node does not exist === |
| 264 | echo |
| 265 | |
| 266 | blockdev_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 |
| 274 | echo "*** done" |
| 275 | rm -f $seq.full |
| 276 | status=0 |