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147 lines
5.4 KiB
Python
147 lines
5.4 KiB
Python
#!/usr/bin/env python3
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# group: rw quick export
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#
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# Copyright (C) 2020 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
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#
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# Test the block export QAPI interfaces
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import iotests
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import os
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# Need a writable image format (but not vpc, which rounds the image size, nor
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# luks which requires special command lines)
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iotests.script_initialize(
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supported_fmts=['generic'],
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unsupported_fmts=['luks', 'vpc'],
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supported_platforms=['linux'],
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)
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with iotests.FilePath('image') as img, \
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iotests.FilePath('socket', base_dir=iotests.sock_dir) as socket, \
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iotests.VM() as vm:
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iotests.qemu_img('create', '-f', iotests.imgfmt, img, '64M')
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iotests.qemu_io_log('-f', iotests.imgfmt, '-c', 'write -P 0x11 0 4k', img)
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iotests.log('=== Launch VM ===')
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vm.add_object('iothread,id=iothread0')
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vm.add_object('iothread,id=iothread1')
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vm.add_blockdev(f'file,filename={img},node-name=file')
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vm.add_blockdev(f'{iotests.imgfmt},file=file,node-name=fmt')
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vm.add_blockdev('raw,file=file,node-name=ro,read-only=on')
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vm.add_blockdev('null-co,node-name=null')
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vm.add_device(f'id=scsi0,driver=virtio-scsi,iothread=iothread0')
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vm.launch()
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vm.qmp_log('nbd-server-start',
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addr={'type': 'unix', 'data': {'path': socket}},
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filters=(iotests.filter_qmp_testfiles, ))
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vm.qmp_log('query-block-exports')
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iotests.log('\n=== Create a read-only NBD export ===')
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vm.qmp_log('block-export-add', id='export0', type='nbd', node_name='fmt')
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vm.qmp_log('query-block-exports')
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iotests.qemu_nbd_list_log('-k', socket)
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iotests.log('\n=== Try a few invalid things ===')
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vm.qmp_log('block-export-add', id='#invalid', type='nbd', node_name='fmt')
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vm.qmp_log('block-export-add', id='export0', type='nbd', node_name='fmt')
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vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='ro',
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writable=True)
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vm.qmp_log('block-export-del', id='export1')
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vm.qmp_log('query-block-exports')
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iotests.log('\n=== Move export to an iothread ===')
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vm.qmp_log('device_add', id='sda', driver='scsi-hd', drive='fmt')
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vm.qmp_log('query-block-exports')
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iotests.qemu_nbd_list_log('-k', socket)
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iotests.log('\n=== Add export with conflicting iothread ===')
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vm.qmp_log('device_add', id='sdb', driver='scsi-hd', drive='null')
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# Should fail because of fixed-iothread
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vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='null',
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iothread='iothread1', fixed_iothread=True, writable=True)
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# Should ignore the iothread conflict, but then fail because of the
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# permission conflict (and not crash)
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vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='null',
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iothread='iothread1', fixed_iothread=False, writable=True)
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iotests.log('\n=== Add a writable export ===')
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# This fails because share-rw=off
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vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='fmt',
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name='export1', writable=True, writethrough=True,
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description='This is the writable second export')
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vm.qmp_log('device_del', id='sda')
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event = vm.event_wait(name="DEVICE_DELETED",
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match={'data': {'device': 'sda'}})
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iotests.log(event, filters=[iotests.filter_qmp_event])
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vm.qmp_log('device_add', id='sda', driver='scsi-hd', drive='fmt',
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share_rw=True)
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# Now it should work
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vm.qmp_log('block-export-add', id='export1', type='nbd', node_name='fmt',
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name='export1', writable=True, writethrough=True,
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description='This is the writable second export')
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vm.qmp_log('query-block-exports')
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iotests.qemu_nbd_list_log('-k', socket)
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iotests.log('\n=== Connect qemu-io to export1, try removing exports ===')
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nbd_url = f'nbd+unix:///export1?socket={socket}'
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qemu_io = iotests.QemuIoInteractive('-f', 'raw', nbd_url)
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iotests.log(qemu_io.cmd('read -P 0x11 0 4k'),
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filters=[iotests.filter_qemu_io])
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iotests.log(qemu_io.cmd('write -P 0x22 4k 4k'),
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filters=[iotests.filter_qemu_io])
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vm.qmp_log('block-export-del', id='export1')
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vm.qmp_log('block-export-del', id='export0')
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iotests.log(vm.get_qmp_events_filtered())
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qemu_io.close()
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vm.qmp_log('query-block-exports')
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iotests.qemu_nbd_list_log('-k', socket)
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iotests.log('\n=== Connect qemu-io again, try force removing ===')
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qemu_io = iotests.QemuIoInteractive('-f', 'raw', nbd_url)
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vm.qmp_log('block-export-del', id='export1')
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vm.qmp_log('block-export-del', id='export1', mode='hard')
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# This should fail now
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iotests.log(qemu_io.cmd('read -P 0x11 0 4k'))
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qemu_io.close()
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vm.qmp_log('query-block-exports')
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iotests.qemu_nbd_list_log('-k', socket)
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iotests.log('\n=== Shut down QEMU ===')
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vm.shutdown()
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