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Diffstat (limited to 'tests/qemu-iotests/041')
| -rwxr-xr-x | tests/qemu-iotests/041 | 615 |
1 files changed, 615 insertions, 0 deletions
diff --git a/tests/qemu-iotests/041 b/tests/qemu-iotests/041 new file mode 100755 index 0000000000..c6eb851871 --- /dev/null +++ b/tests/qemu-iotests/041 @@ -0,0 +1,615 @@ +#!/usr/bin/env python +# +# Tests for image mirroring. +# +# Copyright (C) 2012 Red Hat, Inc. +# +# 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/>. +# + +import time +import os +import iotests +from iotests import qemu_img, qemu_io +import struct + +backing_img = os.path.join(iotests.test_dir, 'backing.img') +target_backing_img = os.path.join(iotests.test_dir, 'target-backing.img') +test_img = os.path.join(iotests.test_dir, 'test.img') +target_img = os.path.join(iotests.test_dir, 'target.img') + +class ImageMirroringTestCase(iotests.QMPTestCase): + '''Abstract base class for image mirroring test cases''' + + def assert_no_active_mirrors(self): + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return', []) + + def cancel_and_wait(self, drive='drive0', wait_ready=True): + '''Cancel a block job and wait for it to finish''' + if wait_ready: + ready = False + while not ready: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_READY': + self.assert_qmp(event, 'data/type', 'mirror') + self.assert_qmp(event, 'data/device', drive) + ready = True + + result = self.vm.qmp('block-job-cancel', device=drive, + force=not wait_ready) + self.assert_qmp(result, 'return', {}) + + cancelled = False + while not cancelled: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_COMPLETED' or \ + event['event'] == 'BLOCK_JOB_CANCELLED': + self.assert_qmp(event, 'data/type', 'mirror') + self.assert_qmp(event, 'data/device', drive) + if wait_ready: + self.assertEquals(event['event'], 'BLOCK_JOB_COMPLETED') + self.assert_qmp(event, 'data/offset', self.image_len) + self.assert_qmp(event, 'data/len', self.image_len) + cancelled = True + + self.assert_no_active_mirrors() + + def complete_and_wait(self, drive='drive0', wait_ready=True): + '''Complete a block job and wait for it to finish''' + if wait_ready: + ready = False + while not ready: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_READY': + self.assert_qmp(event, 'data/type', 'mirror') + self.assert_qmp(event, 'data/device', drive) + ready = True + + result = self.vm.qmp('block-job-complete', device=drive) + self.assert_qmp(result, 'return', {}) + + completed = False + while not completed: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_COMPLETED': + self.assert_qmp(event, 'data/type', 'mirror') + self.assert_qmp(event, 'data/device', drive) + self.assert_qmp_absent(event, 'data/error') + self.assert_qmp(event, 'data/offset', self.image_len) + self.assert_qmp(event, 'data/len', self.image_len) + completed = True + + self.assert_no_active_mirrors() + + def create_image(self, name, size): + file = open(name, 'w') + i = 0 + while i < size: + sector = struct.pack('>l504xl', i / 512, i / 512) + file.write(sector) + i = i + 512 + file.close() + + def compare_images(self, img1, img2): + try: + qemu_img('convert', '-f', iotests.imgfmt, '-O', 'raw', img1, img1 + '.raw') + qemu_img('convert', '-f', iotests.imgfmt, '-O', 'raw', img2, img2 + '.raw') + file1 = open(img1 + '.raw', 'r') + file2 = open(img2 + '.raw', 'r') + return file1.read() == file2.read() + finally: + if file1 is not None: + file1.close() + if file2 is not None: + file2.close() + try: + os.remove(img1 + '.raw') + except OSError: + pass + try: + os.remove(img2 + '.raw') + except OSError: + pass + +class TestSingleDrive(ImageMirroringTestCase): + image_len = 1 * 1024 * 1024 # MB + + def setUp(self): + self.create_image(backing_img, TestSingleDrive.image_len) + qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) + self.vm = iotests.VM().add_drive(test_img) + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + os.remove(test_img) + os.remove(backing_img) + try: + os.remove(target_img) + except OSError: + pass + + def test_complete(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + self.complete_and_wait() + result = self.vm.qmp('query-block') + self.assert_qmp(result, 'return[0]/inserted/file', target_img) + self.vm.shutdown() + self.assertTrue(self.compare_images(test_img, target_img), + 'target image does not match source after mirroring') + + def test_cancel(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + self.cancel_and_wait(wait_ready=False) + result = self.vm.qmp('query-block') + self.assert_qmp(result, 'return[0]/inserted/file', test_img) + self.vm.shutdown() + + def test_cancel_after_ready(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + self.cancel_and_wait() + result = self.vm.qmp('query-block') + self.assert_qmp(result, 'return[0]/inserted/file', test_img) + self.vm.shutdown() + self.assertTrue(self.compare_images(test_img, target_img), + 'target image does not match source after mirroring') + + def test_pause(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + result = self.vm.qmp('block-job-pause', device='drive0') + self.assert_qmp(result, 'return', {}) + + time.sleep(1) + result = self.vm.qmp('query-block-jobs') + offset = self.dictpath(result, 'return[0]/offset') + + time.sleep(1) + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/offset', offset) + + result = self.vm.qmp('block-job-resume', device='drive0') + self.assert_qmp(result, 'return', {}) + + self.complete_and_wait() + self.vm.shutdown() + self.assertTrue(self.compare_images(test_img, target_img), + 'target image does not match source after mirroring') + + def test_large_cluster(self): + self.assert_no_active_mirrors() + + qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=%d,backing_file=%s' + % (TestSingleDrive.image_len, backing_img), target_img) + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=target_img) + self.assert_qmp(result, 'return', {}) + + self.complete_and_wait() + result = self.vm.qmp('query-block') + self.assert_qmp(result, 'return[0]/inserted/file', target_img) + self.vm.shutdown() + self.assertTrue(self.compare_images(test_img, target_img), + 'target image does not match source after mirroring') + + def test_medium_not_found(self): + result = self.vm.qmp('drive-mirror', device='ide1-cd0', sync='full', + target=target_img) + self.assert_qmp(result, 'error/class', 'GenericError') + + def test_image_not_found(self): + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=target_img) + self.assert_qmp(result, 'error/class', 'GenericError') + + def test_device_not_found(self): + result = self.vm.qmp('drive-mirror', device='nonexistent', sync='full', + target=target_img) + self.assert_qmp(result, 'error/class', 'DeviceNotFound') + +class TestMirrorNoBacking(ImageMirroringTestCase): + image_len = 2 * 1024 * 1024 # MB + + def complete_and_wait(self, drive='drive0', wait_ready=True): + self.create_image(target_backing_img, TestMirrorNoBacking.image_len) + return ImageMirroringTestCase.complete_and_wait(self, drive, wait_ready) + + def compare_images(self, img1, img2): + self.create_image(target_backing_img, TestMirrorNoBacking.image_len) + return ImageMirroringTestCase.compare_images(self, img1, img2) + + def setUp(self): + self.create_image(backing_img, TestMirrorNoBacking.image_len) + qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) + self.vm = iotests.VM().add_drive(test_img) + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + os.remove(test_img) + os.remove(backing_img) + os.remove(target_backing_img) + os.remove(target_img) + + def test_complete(self): + self.assert_no_active_mirrors() + + qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img) + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=target_img) + self.assert_qmp(result, 'return', {}) + + self.complete_and_wait() + result = self.vm.qmp('query-block') + self.assert_qmp(result, 'return[0]/inserted/file', target_img) + self.vm.shutdown() + self.assertTrue(self.compare_images(test_img, target_img), + 'target image does not match source after mirroring') + + def test_cancel(self): + self.assert_no_active_mirrors() + + qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, target_img) + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=target_img) + self.assert_qmp(result, 'return', {}) + + self.cancel_and_wait() + result = self.vm.qmp('query-block') + self.assert_qmp(result, 'return[0]/inserted/file', test_img) + self.vm.shutdown() + self.assertTrue(self.compare_images(test_img, target_img), + 'target image does not match source after mirroring') + +class TestReadErrors(ImageMirroringTestCase): + image_len = 2 * 1024 * 1024 # MB + + # this should be a multiple of twice the default granularity + # so that we hit this offset first in state 1 + MIRROR_GRANULARITY = 1024 * 1024 + + def create_blkdebug_file(self, name, event, errno): + file = open(name, 'w') + file.write(''' +[inject-error] +state = "1" +event = "%s" +errno = "%d" +immediately = "off" +once = "on" +sector = "%d" + +[set-state] +state = "1" +event = "%s" +new_state = "2" + +[set-state] +state = "2" +event = "%s" +new_state = "1" +''' % (event, errno, self.MIRROR_GRANULARITY / 512, event, event)) + file.close() + + def setUp(self): + self.blkdebug_file = backing_img + ".blkdebug" + self.create_image(backing_img, TestReadErrors.image_len) + self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5) + qemu_img('create', '-f', iotests.imgfmt, + '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' + % (self.blkdebug_file, backing_img), + test_img) + self.vm = iotests.VM().add_drive(test_img) + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + os.remove(test_img) + os.remove(backing_img) + os.remove(self.blkdebug_file) + + def test_report_read(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + completed = False + error = False + while not completed: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_ERROR': + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/operation', 'read') + error = True + elif event['event'] == 'BLOCK_JOB_READY': + self.assertTrue(False, 'job completed unexpectedly') + elif event['event'] == 'BLOCK_JOB_COMPLETED': + self.assertTrue(error, 'job completed unexpectedly') + self.assert_qmp(event, 'data/type', 'mirror') + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/error', 'Input/output error') + self.assert_qmp(event, 'data/len', self.image_len) + completed = True + + self.assert_no_active_mirrors() + self.vm.shutdown() + + def test_ignore_read(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img, on_source_error='ignore') + self.assert_qmp(result, 'return', {}) + + event = self.vm.get_qmp_event(wait=True) + self.assertEquals(event['event'], 'BLOCK_JOB_ERROR') + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/operation', 'read') + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/paused', False) + self.complete_and_wait() + self.vm.shutdown() + + def test_stop_read(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img, on_source_error='stop') + self.assert_qmp(result, 'return', {}) + + error = False + ready = False + while not ready: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_ERROR': + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/operation', 'read') + + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/paused', True) + self.assert_qmp(result, 'return[0]/io-status', 'failed') + + result = self.vm.qmp('block-job-resume', device='drive0') + self.assert_qmp(result, 'return', {}) + error = True + elif event['event'] == 'BLOCK_JOB_READY': + self.assertTrue(error, 'job completed unexpectedly') + self.assert_qmp(event, 'data/device', 'drive0') + ready = True + + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/paused', False) + self.assert_qmp(result, 'return[0]/io-status', 'ok') + + self.complete_and_wait(wait_ready=False) + self.assert_no_active_mirrors() + self.vm.shutdown() + +class TestWriteErrors(ImageMirroringTestCase): + image_len = 2 * 1024 * 1024 # MB + + # this should be a multiple of twice the default granularity + # so that we hit this offset first in state 1 + MIRROR_GRANULARITY = 1024 * 1024 + + def create_blkdebug_file(self, name, event, errno): + file = open(name, 'w') + file.write(''' +[inject-error] +state = "1" +event = "%s" +errno = "%d" +immediately = "off" +once = "on" +sector = "%d" + +[set-state] +state = "1" +event = "%s" +new_state = "2" + +[set-state] +state = "2" +event = "%s" +new_state = "1" +''' % (event, errno, self.MIRROR_GRANULARITY / 512, event, event)) + file.close() + + def setUp(self): + self.blkdebug_file = target_img + ".blkdebug" + self.create_image(backing_img, TestWriteErrors.image_len) + self.create_blkdebug_file(self.blkdebug_file, "write_aio", 5) + qemu_img('create', '-f', iotests.imgfmt, '-obacking_file=%s' %(backing_img), test_img) + self.vm = iotests.VM().add_drive(test_img) + self.target_img = 'blkdebug:%s:%s' % (self.blkdebug_file, target_img) + qemu_img('create', '-f', iotests.imgfmt, '-osize=%d' %(TestWriteErrors.image_len), target_img) + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + os.remove(test_img) + os.remove(backing_img) + os.remove(self.blkdebug_file) + + def test_report_write(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=self.target_img) + self.assert_qmp(result, 'return', {}) + + completed = False + error = False + while not completed: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_ERROR': + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/operation', 'write') + error = True + elif event['event'] == 'BLOCK_JOB_READY': + self.assertTrue(False, 'job completed unexpectedly') + elif event['event'] == 'BLOCK_JOB_COMPLETED': + self.assertTrue(error, 'job completed unexpectedly') + self.assert_qmp(event, 'data/type', 'mirror') + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/error', 'Input/output error') + self.assert_qmp(event, 'data/len', self.image_len) + completed = True + + self.assert_no_active_mirrors() + self.vm.shutdown() + + def test_ignore_write(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=self.target_img, + on_target_error='ignore') + self.assert_qmp(result, 'return', {}) + + event = self.vm.get_qmp_event(wait=True) + self.assertEquals(event['event'], 'BLOCK_JOB_ERROR') + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/operation', 'write') + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/paused', False) + self.complete_and_wait() + self.vm.shutdown() + + def test_stop_write(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + mode='existing', target=self.target_img, + on_target_error='stop') + self.assert_qmp(result, 'return', {}) + + error = False + ready = False + while not ready: + for event in self.vm.get_qmp_events(wait=True): + if event['event'] == 'BLOCK_JOB_ERROR': + self.assert_qmp(event, 'data/device', 'drive0') + self.assert_qmp(event, 'data/operation', 'write') + + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/paused', True) + self.assert_qmp(result, 'return[0]/io-status', 'failed') + + result = self.vm.qmp('block-job-resume', device='drive0') + self.assert_qmp(result, 'return', {}) + + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/paused', False) + self.assert_qmp(result, 'return[0]/io-status', 'ok') + error = True + elif event['event'] == 'BLOCK_JOB_READY': + self.assertTrue(error, 'job completed unexpectedly') + self.assert_qmp(event, 'data/device', 'drive0') + ready = True + + self.complete_and_wait(wait_ready=False) + self.assert_no_active_mirrors() + self.vm.shutdown() + +class TestSetSpeed(ImageMirroringTestCase): + image_len = 80 * 1024 * 1024 # MB + + def setUp(self): + qemu_img('create', backing_img, str(TestSetSpeed.image_len)) + qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img) + self.vm = iotests.VM().add_drive(test_img) + self.vm.launch() + + def tearDown(self): + self.vm.shutdown() + os.remove(test_img) + os.remove(backing_img) + os.remove(target_img) + + def test_set_speed(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + # Default speed is 0 + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/device', 'drive0') + self.assert_qmp(result, 'return[0]/speed', 0) + + result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024) + self.assert_qmp(result, 'return', {}) + + # Ensure the speed we set was accepted + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/device', 'drive0') + self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024) + + self.cancel_and_wait() + + # Check setting speed in drive-mirror works + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img, speed=4*1024*1024) + self.assert_qmp(result, 'return', {}) + + result = self.vm.qmp('query-block-jobs') + self.assert_qmp(result, 'return[0]/device', 'drive0') + self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024) + + self.cancel_and_wait() + + def test_set_speed_invalid(self): + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img, speed=-1) + self.assert_qmp(result, 'error/class', 'GenericError') + + self.assert_no_active_mirrors() + + result = self.vm.qmp('drive-mirror', device='drive0', sync='full', + target=target_img) + self.assert_qmp(result, 'return', {}) + + result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1) + self.assert_qmp(result, 'error/class', 'GenericError') + + self.cancel_and_wait() + +if __name__ == '__main__': + iotests.main(supported_fmts=['qcow2', 'qed']) |