6311eec6fd
Apparently "losetup -P" doesn't always properly read partition table. Force reload using blockdev --rereadpt.
305 lines
12 KiB
Python
305 lines
12 KiB
Python
# vim: fileencoding=utf-8
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#
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# The Qubes OS Project, https://www.qubes-os.org/
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#
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# Copyright (C) 2016
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# Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
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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 along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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import os
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import qubes.tests
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import qubes.qubesutils
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import subprocess
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# the same class for both dom0 and VMs
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class TC_00_List(qubes.tests.SystemTestsMixin, qubes.tests.QubesTestCase):
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template = None
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def setUp(self):
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super(TC_00_List, self).setUp()
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self.img_path = '/tmp/test.img'
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self.mount_point = '/tmp/test-dir'
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if self.template is not None:
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self.vm = self.qc.add_new_vm(
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"QubesAppVm",
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name=self.make_vm_name("vm"),
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template=self.qc.get_vm_by_name(self.template))
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self.vm.create_on_disk(verbose=False)
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self.vm.start()
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else:
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self.vm = self.qc[0]
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def tearDown(self):
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super(TC_00_List, self).tearDown()
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if self.template is None:
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if os.path.exists(self.mount_point):
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subprocess.call(['sudo', 'umount', self.mount_point])
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subprocess.call(['sudo', 'rmdir', self.mount_point])
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subprocess.call(['sudo', 'dmsetup', 'remove', 'test-dm'])
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if os.path.exists(self.img_path):
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loopdev = subprocess.check_output(['losetup', '-j',
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self.img_path])
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for dev in loopdev.splitlines():
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subprocess.call(
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['sudo', 'losetup', '-d', dev.split(':')[0]])
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subprocess.call(['sudo', 'rm', '-f', self.img_path])
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def run_script(self, script, user="user"):
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if self.template is None:
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if user == "user":
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subprocess.check_call(script, shell=True)
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elif user == "root":
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subprocess.check_call(['sudo', 'sh', '-c', script])
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else:
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retcode = self.vm.run(script, user=user, wait=True)
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if retcode != 0:
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raise subprocess.CalledProcessError
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def test_000_list_loop(self):
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if self.template is None:
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self.skipTest('loop devices excluded in dom0')
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"losetup -f {path}; "
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"udevadm settle".format(path=self.img_path), user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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found = False
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for dev in dev_list.keys():
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if dev_list[dev]['desc'] == self.img_path:
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self.assertTrue(dev.startswith(self.vm.name + ':loop'))
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self.assertEquals(dev_list[dev]['mode'], 'w')
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self.assertEquals(dev_list[dev]['size'], 1024 * 1024 * 128)
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self.assertEquals(
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dev_list[dev]['device'], '/dev/' + dev.split(':')[1])
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found = True
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if not found:
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self.fail("Device {} not found in {!r}".format(self.img_path, dev_list))
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def test_001_list_loop_mounted(self):
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if self.template is None:
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self.skipTest('loop devices excluded in dom0')
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"mkfs.ext4 -q -F {path}; "
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"mkdir -p {mntdir}; "
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"mount {path} {mntdir} -o loop; "
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"udevadm settle".format(
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path=self.img_path,
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mntdir=self.mount_point),
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user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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for dev in dev_list.keys():
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if dev_list[dev]['desc'] == self.img_path:
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self.fail(
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'Device {} ({}) should not be listed because is mounted'
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.format(dev, self.img_path))
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def test_010_list_dm(self):
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"loopdev=`losetup -f`; "
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"losetup $loopdev {path}; "
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"dmsetup create test-dm --table \"0 262144 linear $(cat "
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"/sys/block/$(basename $loopdev)/dev) 0\";"
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"udevadm settle".format(path=self.img_path), user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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found = False
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for dev in dev_list.keys():
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if dev.startswith(self.vm.name + ':loop'):
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self.assertNotEquals(dev_list[dev]['desc'], self.img_path,
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"Device {} ({}) should not be listed as it is used in "
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"device-mapper".format(dev, self.img_path)
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)
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elif dev_list[dev]['desc'] == 'test-dm':
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self.assertEquals(dev_list[dev]['mode'], 'w')
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self.assertEquals(dev_list[dev]['size'], 1024 * 1024 * 128)
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self.assertEquals(
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dev_list[dev]['device'], '/dev/' + dev.split(':')[1])
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found = True
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if not found:
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self.fail("Device {} not found in {!r}".format('test-dm', dev_list))
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def test_011_list_dm_mounted(self):
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"loopdev=`losetup -f`; "
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"losetup $loopdev {path}; "
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"dmsetup create test-dm --table \"0 262144 linear $(cat "
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"/sys/block/$(basename $loopdev)/dev) 0\";"
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"mkfs.ext4 -q -F /dev/mapper/test-dm;"
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"mkdir -p {mntdir};"
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"mount /dev/mapper/test-dm {mntdir};"
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"udevadm settle".format(
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path=self.img_path,
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mntdir=self.mount_point),
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user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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for dev in dev_list.keys():
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if dev.startswith(self.vm.name + ':loop'):
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self.assertNotEquals(dev_list[dev]['desc'], self.img_path,
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"Device {} ({}) should not be listed as it is used in "
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"device-mapper".format(dev, self.img_path)
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)
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else:
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self.assertNotEquals(dev_list[dev]['desc'], 'test-dm',
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"Device {} ({}) should not be listed as it is "
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"mounted".format(dev, 'test-dm')
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)
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def test_012_list_dm_delayed(self):
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"loopdev=`losetup -f`; "
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"losetup $loopdev {path}; "
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"udevadm settle; "
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"dmsetup create test-dm --table \"0 262144 linear $(cat "
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"/sys/block/$(basename $loopdev)/dev) 0\";"
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"udevadm settle".format(path=self.img_path), user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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found = False
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for dev in dev_list.keys():
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if dev.startswith(self.vm.name + ':loop'):
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self.assertNotEquals(dev_list[dev]['desc'], self.img_path,
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"Device {} ({}) should not be listed as it is used in "
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"device-mapper".format(dev, self.img_path)
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)
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elif dev_list[dev]['desc'] == 'test-dm':
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self.assertEquals(dev_list[dev]['mode'], 'w')
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self.assertEquals(dev_list[dev]['size'], 1024 * 1024 * 128)
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self.assertEquals(
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dev_list[dev]['device'], '/dev/' + dev.split(':')[1])
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found = True
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if not found:
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self.fail("Device {} not found in {!r}".format('test-dm', dev_list))
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def test_013_list_dm_removed(self):
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"loopdev=`losetup -f`; "
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"losetup $loopdev {path}; "
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"dmsetup create test-dm --table \"0 262144 linear $(cat "
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"/sys/block/$(basename $loopdev)/dev) 0\";"
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"udevadm settle;"
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"dmsetup remove test-dm;"
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"udevadm settle".format(path=self.img_path), user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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found = False
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for dev in dev_list.keys():
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if dev_list[dev]['desc'] == self.img_path:
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self.assertTrue(dev.startswith(self.vm.name + ':loop'))
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self.assertEquals(dev_list[dev]['mode'], 'w')
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self.assertEquals(dev_list[dev]['size'], 1024 * 1024 * 128)
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self.assertEquals(
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dev_list[dev]['device'], '/dev/' + dev.split(':')[1])
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found = True
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if not found:
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self.fail("Device {} not found in {!r}".format(self.img_path, dev_list))
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def test_020_list_loop_partition(self):
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if self.template is None:
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self.skipTest('loop devices excluded in dom0')
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"echo ,,L | sfdisk {path};"
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"loopdev=`losetup -f`; "
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"losetup -P $loopdev {path}; "
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"blockdev --rereadpt $loopdev; "
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"udevadm settle".format(path=self.img_path), user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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found = False
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for dev in dev_list.keys():
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if dev_list[dev]['desc'] == self.img_path:
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self.assertTrue(dev.startswith(self.vm.name + ':loop'))
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self.assertEquals(dev_list[dev]['mode'], 'w')
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self.assertEquals(dev_list[dev]['size'], 1024 * 1024 * 128)
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self.assertEquals(
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dev_list[dev]['device'], '/dev/' + dev.split(':')[1])
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self.assertIn(dev + 'p1', dev_list)
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found = True
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if not found:
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self.fail("Device {} not found in {!r}".format(self.img_path, dev_list))
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def test_021_list_loop_partition_mounted(self):
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if self.template is None:
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self.skipTest('loop devices excluded in dom0')
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self.run_script(
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"set -e;"
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"truncate -s 128M {path}; "
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"echo ,,L | sfdisk {path};"
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"loopdev=`losetup -f`; "
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"losetup -P $loopdev {path}; "
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"blockdev --rereadpt $loopdev; "
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"mkfs.ext4 -q -F ${{loopdev}}p1; "
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"mkdir -p {mntdir}; "
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"mount ${{loopdev}}p1 {mntdir}; "
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"udevadm settle".format(
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path=self.img_path, mntdir=self.mount_point),
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user="root")
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dev_list = qubes.qubesutils.block_list_vm(self.vm)
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for dev in dev_list.keys():
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if dev_list[dev]['desc'] == self.img_path:
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self.fail(
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'Device {} ({}) should not be listed because its '
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'partition is mounted'
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.format(dev, self.img_path))
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elif dev.startswith(self.vm.name + ':loop') and dev.endswith('p1'):
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# FIXME: risky assumption that only tests create partitioned
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# loop devices
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self.fail(
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'Device {} ({}) should not be listed because is mounted'
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.format(dev, self.img_path))
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def load_tests(loader, tests, pattern):
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try:
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qc = qubes.qubes.QubesVmCollection()
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qc.lock_db_for_reading()
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qc.load()
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qc.unlock_db()
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templates = [vm.name for vm in qc.values() if
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isinstance(vm, qubes.qubes.QubesTemplateVm)]
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except OSError:
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templates = []
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for template in templates:
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tests.addTests(loader.loadTestsFromTestCase(
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type(
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'TC_00_List_' + template,
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(TC_00_List, qubes.tests.QubesTestCase),
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{'template': template})))
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return tests
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