| #!/usr/bin/env bash |
| # group: rw |
| # |
| # Live snapshot tests |
| # |
| # This tests live snapshots of images on a running QEMU instance, using |
| # QMP commands. Both single disk snapshots, and transactional group |
| # snapshots are performed. |
| # |
| # Copyright (C) 2014 Red Hat, Inc. |
| # Copyright (C) 2015 Igalia, S.L. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| # creator |
| owner=jcody@redhat.com |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| status=1 # failure is the default! |
| |
| snapshot_virt0="snapshot-v0.qcow2" |
| snapshot_virt1="snapshot-v1.qcow2" |
| |
| SNAPSHOTS=10 |
| |
| _cleanup() |
| { |
| _cleanup_qemu |
| _cleanup_test_img |
| for i in $(seq 1 ${SNAPSHOTS}) |
| do |
| _rm_test_img "${TEST_DIR}/${i}-${snapshot_virt0}" |
| _rm_test_img "${TEST_DIR}/${i}-${snapshot_virt1}" |
| done |
| for img in "${TEST_IMG}".{1,2,base} |
| do |
| _rm_test_img "$img" |
| done |
| |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| . ./common.qemu |
| |
| _supported_fmt qcow2 |
| _supported_proto file |
| |
| |
| # ${1}: unique identifier for the snapshot filename |
| create_single_snapshot() |
| { |
| cmd="{ 'execute': 'blockdev-snapshot-sync', |
| 'arguments': { 'device': 'virtio0', |
| 'snapshot-file':'${TEST_DIR}/${1}-${snapshot_virt0}', |
| 'format': 'qcow2' } }" |
| _send_qemu_cmd $h "${cmd}" "return" |
| } |
| |
| # ${1}: unique identifier for the snapshot filename |
| create_group_snapshot() |
| { |
| cmd="{ 'execute': 'transaction', 'arguments': |
| {'actions': [ |
| { 'type': 'blockdev-snapshot-sync', 'data' : |
| { 'device': 'virtio0', |
| 'snapshot-file': '${TEST_DIR}/${1}-${snapshot_virt0}' } }, |
| { 'type': 'blockdev-snapshot-sync', 'data' : |
| { 'device': 'virtio1', |
| 'snapshot-file': '${TEST_DIR}/${1}-${snapshot_virt1}' } } ] |
| } }" |
| |
| _send_qemu_cmd $h "${cmd}" "return" |
| } |
| |
| # ${1}: unique identifier for the snapshot filename |
| # ${2}: extra_params to the blockdev-add command |
| # ${3}: filename |
| do_blockdev_add() |
| { |
| cmd="{ 'execute': 'blockdev-add', 'arguments': |
| { 'driver': 'qcow2', 'node-name': 'snap_${1}', ${2} |
| 'file': |
| { 'driver': 'file', 'filename': '${3}', |
| 'node-name': 'file_${1}' } } }" |
| _send_qemu_cmd $h "${cmd}" "return" |
| } |
| |
| # ${1}: unique identifier for the snapshot filename |
| create_snapshot_image() |
| { |
| base_image="${TEST_DIR}/$((${1}-1))-${snapshot_virt0}" |
| snapshot_file="${TEST_DIR}/${1}-${snapshot_virt0}" |
| TEST_IMG=$snapshot_file _make_test_img -u -b "${base_image}" -F $IMGFMT "$size" |
| } |
| |
| # ${1}: unique identifier for the snapshot filename |
| add_snapshot_image() |
| { |
| snapshot_file="${TEST_DIR}/${1}-${snapshot_virt0}" |
| create_snapshot_image "$1" |
| do_blockdev_add "$1" "'backing': null, " "${snapshot_file}" |
| } |
| |
| # ${1}: unique identifier for the snapshot filename |
| # ${2}: expected response, defaults to 'return' |
| blockdev_snapshot() |
| { |
| cmd="{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node': 'virtio0', |
| 'overlay':'snap_${1}' } }" |
| _send_qemu_cmd $h "${cmd}" "${2:-return}" |
| } |
| |
| size=128M |
| |
| TEST_IMG="$TEST_IMG.1" _make_test_img $size |
| TEST_IMG="$TEST_IMG.2" _make_test_img $size |
| |
| echo |
| echo === Running QEMU === |
| echo |
| |
| qemu_comm_method="qmp" |
| _launch_qemu -drive file="${TEST_IMG}.1",if=virtio -drive file="${TEST_IMG}.2",if=virtio |
| h=$QEMU_HANDLE |
| |
| echo |
| echo === Sending capabilities === |
| echo |
| |
| _send_qemu_cmd $h "{ 'execute': 'qmp_capabilities' }" "return" |
| |
| # Tests for the blockdev-snapshot-sync command |
| |
| echo |
| echo === Create a single snapshot on virtio0 === |
| echo |
| |
| create_single_snapshot 1 |
| |
| |
| echo |
| echo === Invalid command - missing device and nodename === |
| echo |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', |
| 'arguments': { 'snapshot-file':'${TEST_DIR}/1-${snapshot_virt0}', |
| 'format': 'qcow2' } }" "error" |
| |
| echo |
| echo === Invalid command - missing snapshot-file === |
| echo |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot-sync', |
| 'arguments': { 'device': 'virtio0', |
| 'format': 'qcow2' } }" "error" |
| echo |
| echo |
| echo === Create several transactional group snapshots === |
| echo |
| |
| for i in $(seq 2 ${SNAPSHOTS}) |
| do |
| create_group_snapshot ${i} |
| done |
| |
| # Tests for the blockdev-snapshot command |
| |
| echo |
| echo === Create a couple of snapshots using blockdev-snapshot === |
| echo |
| |
| SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| add_snapshot_image ${SNAPSHOTS} |
| blockdev_snapshot ${SNAPSHOTS} |
| |
| SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| add_snapshot_image ${SNAPSHOTS} |
| blockdev_snapshot ${SNAPSHOTS} |
| |
| echo |
| echo === Invalid command - cannot create a snapshot using a file BDS === |
| echo |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node':'virtio0', |
| 'overlay':'file_${SNAPSHOTS}' } |
| }" "error" |
| |
| echo |
| echo === Invalid command - snapshot node used as active layer === |
| echo |
| |
| blockdev_snapshot ${SNAPSHOTS} error |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node':'virtio0', |
| 'overlay':'virtio0' } |
| }" "error" |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node':'virtio0', |
| 'overlay':'virtio1' } |
| }" "error" |
| |
| echo |
| echo === Invalid command - snapshot node used as backing hd === |
| echo |
| |
| blockdev_snapshot $((${SNAPSHOTS}-1)) error |
| |
| echo |
| echo === Invalid command - snapshot node has a backing image === |
| echo |
| |
| SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| |
| TEST_IMG="$TEST_IMG.base" _make_test_img "$size" |
| _make_test_img -b "${TEST_IMG}.base" -F $IMGFMT "$size" |
| do_blockdev_add ${SNAPSHOTS} "" "${TEST_IMG}" |
| blockdev_snapshot ${SNAPSHOTS} error |
| |
| echo |
| echo === Invalid command - creating loops === |
| echo |
| |
| SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| add_snapshot_image ${SNAPSHOTS} |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node':'snap_${SNAPSHOTS}', |
| 'overlay':'snap_${SNAPSHOTS}' } |
| }" "error" |
| |
| SNAPSHOTS=$((${SNAPSHOTS}+1)) |
| create_snapshot_image ${SNAPSHOTS} |
| do_blockdev_add ${SNAPSHOTS} "'backing': 'snap_$((${SNAPSHOTS}-1))', " \ |
| "${TEST_DIR}/${SNAPSHOTS}-${snapshot_virt0}" |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node':'snap_${SNAPSHOTS}', |
| 'overlay':'snap_$((${SNAPSHOTS}-1))' } |
| }" "error" |
| |
| echo |
| echo === Invalid command - The node does not exist === |
| echo |
| |
| blockdev_snapshot $((${SNAPSHOTS}+1)) error |
| |
| _send_qemu_cmd $h "{ 'execute': 'blockdev-snapshot', |
| 'arguments': { 'node':'nodevice', |
| 'overlay':'snap_${SNAPSHOTS}' } |
| }" "error" |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |
