nova/nova/tests/unit/privsep/test_fs.py

249 lines
11 KiB
Python

# Copyright 2013 OpenStack Foundation
# Copyright 2019 Aptira Pty Ltd
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
import nova.privsep.fs
from nova import test
from nova.tests import fixtures
class PrivsepFilesystemHelpersTestCase(test.NoDBTestCase):
"""Test filesystem related utility methods."""
def setUp(self):
super(PrivsepFilesystemHelpersTestCase, self).setUp()
self.useFixture(fixtures.PrivsepFixture())
@mock.patch('oslo_concurrency.processutils.execute')
def test_mount_simple(self, mock_execute):
nova.privsep.fs.mount(None, '/dev/nosuch', '/fake/path', None)
mock_execute.assert_called_with('mount', '/dev/nosuch', '/fake/path')
@mock.patch('oslo_concurrency.processutils.execute')
def test_mount_less_simple(self, mock_execute):
nova.privsep.fs.mount('ext4', '/dev/nosuch', '/fake/path',
['-o', 'remount'])
mock_execute.assert_called_with('mount', '-t', 'ext4',
'-o', 'remount',
'/dev/nosuch', '/fake/path')
@mock.patch('oslo_concurrency.processutils.execute')
def test_umount(self, mock_execute):
nova.privsep.fs.umount('/fake/path')
mock_execute.assert_called_with('umount', '/fake/path',
attempts=3, delay_on_retry=True)
@mock.patch('oslo_concurrency.processutils.execute')
def test_lvcreate_simple(self, mock_execute):
nova.privsep.fs.lvcreate(1024, 'lv', 'vg')
mock_execute.assert_called_with('lvcreate', '-L', '1024b', '-n', 'lv',
'vg', attempts=3)
@mock.patch('oslo_concurrency.processutils.execute')
def test_lvcreate_preallocated(self, mock_execute):
nova.privsep.fs.lvcreate(1024, 'lv', 'vg', preallocated=512)
mock_execute.assert_called_with('lvcreate', '-L', '512b',
'--virtualsize', '1024b',
'-n', 'lv', 'vg', attempts=3)
@mock.patch('oslo_concurrency.processutils.execute')
def test_vginfo(self, mock_execute):
nova.privsep.fs.vginfo('vg')
mock_execute.assert_called_with('vgs', '--noheadings', '--nosuffix',
'--separator', '|', '--units', 'b',
'-o', 'vg_size,vg_free', 'vg')
@mock.patch('oslo_concurrency.processutils.execute')
def test_lvlist(self, mock_execute):
nova.privsep.fs.lvlist('vg')
mock_execute.assert_called_with('lvs', '--noheadings', '-o',
'lv_name', 'vg')
@mock.patch('oslo_concurrency.processutils.execute')
def test_lvinfo(self, mock_execute):
nova.privsep.fs.lvinfo('/path/to/lv')
mock_execute.assert_called_with('lvs', '-o', 'vg_all,lv_all',
'--separator', '|', '/path/to/lv')
@mock.patch('oslo_concurrency.processutils.execute')
def test_lvremove(self, mock_execute):
nova.privsep.fs.lvremove('/path/to/lv')
mock_execute.assert_called_with('lvremove', '-f', '/path/to/lv',
attempts=3)
@mock.patch('oslo_concurrency.processutils.execute')
def test_blockdev_size(self, mock_execute):
nova.privsep.fs.blockdev_size('/dev/nosuch')
mock_execute.assert_called_with('blockdev', '--getsize64',
'/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_blockdev_flush(self, mock_execute):
nova.privsep.fs.blockdev_flush('/dev/nosuch')
mock_execute.assert_called_with('blockdev', '--flushbufs',
'/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_clear_simple(self, mock_execute):
nova.privsep.fs.clear('/dev/nosuch', 1024)
mock_execute.assert_called_with('shred', '-n0', '-z', '-s1024',
'/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_clear_with_shred(self, mock_execute):
nova.privsep.fs.clear('/dev/nosuch', 1024, shred=True)
mock_execute.assert_called_with('shred', '-n3', '-s1024',
'/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_loopsetup(self, mock_execute):
nova.privsep.fs.loopsetup('/dev/nosuch')
mock_execute.assert_called_with('losetup', '--find', '--show',
'/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_loopremove(self, mock_execute):
nova.privsep.fs.loopremove('/dev/nosuch')
mock_execute.assert_called_with('losetup', '--detach', '/dev/nosuch',
attempts=3)
@mock.patch('oslo_concurrency.processutils.execute')
def test_nbd_connect(self, mock_execute):
nova.privsep.fs.nbd_connect('/dev/nosuch', '/fake/path')
mock_execute.assert_called_with('qemu-nbd', '-c', '/dev/nosuch',
'/fake/path')
@mock.patch('oslo_concurrency.processutils.execute')
def test_nbd_disconnect(self, mock_execute):
nova.privsep.fs.nbd_disconnect('/dev/nosuch')
mock_execute.assert_called_with('qemu-nbd', '-d', '/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_create_device_maps(self, mock_execute):
nova.privsep.fs.create_device_maps('/dev/nosuch')
mock_execute.assert_called_with('kpartx', '-a', '/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_remove_device_maps(self, mock_execute):
nova.privsep.fs.remove_device_maps('/dev/nosuch')
mock_execute.assert_called_with('kpartx', '-d', '/dev/nosuch')
@mock.patch('oslo_concurrency.processutils.execute')
def test_get_filesystem_type(self, mock_execute):
nova.privsep.fs.get_filesystem_type('/dev/nosuch')
mock_execute.assert_called_with('blkid', '-o', 'value', '-s',
'TYPE', '/dev/nosuch',
check_exit_code=[0, 2])
@mock.patch('oslo_concurrency.processutils.execute')
def test_list_partitions(self, mock_execute):
parted_return = "BYT;\n...\n"
parted_return += "1:2s:11s:10s:ext3::boot;\n"
parted_return += "2:20s:11s:10s::bob:;\n"
mock_execute.return_value = (parted_return, None)
partitions = nova.privsep.fs.unprivileged_list_partitions("abc")
self.assertEqual(2, len(partitions))
self.assertEqual((1, 2, 10, "ext3", "", "boot"), partitions[0])
self.assertEqual((2, 20, 10, "", "bob", ""), partitions[1])
class MkfsTestCase(test.NoDBTestCase):
@mock.patch('oslo_concurrency.processutils.execute')
def test_mkfs_ext4(self, mock_execute):
nova.privsep.fs.unprivileged_mkfs('ext4', '/my/block/dev')
mock_execute.assert_called_once_with('mkfs', '-t', 'ext4', '-F',
'/my/block/dev')
@mock.patch('oslo_concurrency.processutils.execute')
def test_mkfs_msdos(self, mock_execute):
nova.privsep.fs.unprivileged_mkfs('msdos', '/my/msdos/block/dev')
mock_execute.assert_called_once_with('mkfs', '-t', 'msdos',
'/my/msdos/block/dev')
@mock.patch('oslo_concurrency.processutils.execute')
def test_mkfs_swap(self, mock_execute):
nova.privsep.fs.unprivileged_mkfs('swap', '/my/swap/block/dev')
mock_execute.assert_called_once_with('mkswap', '/my/swap/block/dev')
@mock.patch('oslo_concurrency.processutils.execute')
def test_mkfs_ext4_withlabel(self, mock_execute):
nova.privsep.fs.unprivileged_mkfs('ext4', '/my/block/dev', 'ext4-vol')
mock_execute.assert_called_once_with(
'mkfs', '-t', 'ext4', '-F', '-L', 'ext4-vol', '/my/block/dev')
@mock.patch('oslo_concurrency.processutils.execute')
def test_mkfs_msdos_withlabel(self, mock_execute):
nova.privsep.fs.unprivileged_mkfs(
'msdos', '/my/msdos/block/dev', 'msdos-vol')
mock_execute.assert_called_once_with(
'mkfs', '-t', 'msdos', '-n', 'msdos-vol', '/my/msdos/block/dev')
@mock.patch('oslo_concurrency.processutils.execute')
def test_mkfs_swap_withlabel(self, mock_execute):
nova.privsep.fs.unprivileged_mkfs(
'swap', '/my/swap/block/dev', 'swap-vol')
mock_execute.assert_called_once_with(
'mkswap', '-L', 'swap-vol', '/my/swap/block/dev')
HASH_VFAT = nova.privsep.fs._get_hash_str(
nova.privsep.fs.FS_FORMAT_VFAT)[:7]
HASH_EXT4 = nova.privsep.fs._get_hash_str(
nova.privsep.fs.FS_FORMAT_EXT4)[:7]
HASH_NTFS = nova.privsep.fs._get_hash_str(
nova.privsep.fs.FS_FORMAT_NTFS)[:7]
def test_get_file_extension_for_os_type(self):
self.assertEqual(self.HASH_VFAT,
nova.privsep.fs.get_file_extension_for_os_type(
None, None))
self.assertEqual(self.HASH_EXT4,
nova.privsep.fs.get_file_extension_for_os_type(
'linux', None))
self.assertEqual(self.HASH_NTFS,
nova.privsep.fs.get_file_extension_for_os_type(
'windows', None))
def test_get_file_extension_for_os_type_with_overrides(self):
with mock.patch('nova.privsep.fs._DEFAULT_MKFS_COMMAND',
'custom mkfs command'):
self.assertEqual("a74d253",
nova.privsep.fs.get_file_extension_for_os_type(
'linux', None))
self.assertEqual("a74d253",
nova.privsep.fs.get_file_extension_for_os_type(
'windows', None))
self.assertEqual("a74d253",
nova.privsep.fs.get_file_extension_for_os_type(
'osx', None))
with mock.patch.dict(nova.privsep.fs._MKFS_COMMAND,
{'osx': 'custom mkfs command'}, clear=True):
self.assertEqual(self.HASH_VFAT,
nova.privsep.fs.get_file_extension_for_os_type(
None, None))
self.assertEqual(self.HASH_EXT4,
nova.privsep.fs.get_file_extension_for_os_type(
'linux', None))
self.assertEqual(self.HASH_NTFS,
nova.privsep.fs.get_file_extension_for_os_type(
'windows', None))
self.assertEqual("a74d253",
nova.privsep.fs.get_file_extension_for_os_type(
'osx', None))