core-admin/tests/backup.py

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#!/usr/bin/python
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# 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) 2014-2015
# Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
# Copyright (C) 2015 Wojtek Porczyk <woju@invisiblethingslab.com>
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#
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# 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.
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#
# 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.
#
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# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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import os
import unittest
import sys
from qubes.qubes import QubesException, QubesTemplateVm
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import qubes.tests
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class TC_00_Backup(qubes.tests.BackupTestsMixin, qubes.tests.QubesTestCase):
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def test_000_basic_backup(self):
vms = self.create_backup_vms()
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self.make_backup(vms)
self.remove_vms(vms)
self.restore_backup()
for vm in vms:
restored_vm = self.qc.get_vm_by_name(vm.name)
for prop in ('name', 'kernel', 'uses_default_kernel',
'uses_default_netvm', 'memory', 'maxmem', 'kernelopts',
'uses_default_kernelopts', 'services', 'vcpus', 'pcidevs',
'include_in_backups', 'default_user', 'qrexec_timeout',
'autostart', 'pci_strictreset', 'pci_e820_host', 'debug',
'internal'):
if prop not in vm.get_attrs_config():
continue
self.assertEquals(
getattr(vm, prop), getattr(restored_vm, prop),
"VM {} - property {} not properly restored".format(
vm.name, prop))
for prop in ('netvm', 'template', 'label'):
orig_value = getattr(vm, prop)
restored_value = getattr(restored_vm, prop)
if orig_value and restored_value:
self.assertEquals(orig_value.name, restored_value.name,
"VM {} - property {} not properly restored".format(
vm.name, prop))
else:
self.assertEquals(orig_value, restored_value,
"VM {} - property {} not properly restored".format(
vm.name, prop))
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self.remove_vms(vms)
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def test_001_compressed_backup(self):
vms = self.create_backup_vms()
self.make_backup(vms, do_kwargs={'compressed': True})
self.remove_vms(vms)
self.restore_backup()
self.remove_vms(vms)
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def test_002_encrypted_backup(self):
vms = self.create_backup_vms()
self.make_backup(vms, do_kwargs={'encrypted': True})
self.remove_vms(vms)
self.restore_backup()
self.remove_vms(vms)
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def test_003_compressed_encrypted_backup(self):
vms = self.create_backup_vms()
self.make_backup(vms,
do_kwargs={
'compressed': True,
'encrypted': True})
self.remove_vms(vms)
self.restore_backup()
self.remove_vms(vms)
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def test_004_sparse_multipart(self):
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vms = []
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vmname = self.make_vm_name('testhvm2')
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if self.verbose:
print >>sys.stderr, "-> Creating %s" % vmname
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hvmtemplate = self.qc.add_new_vm("QubesTemplateHVm", name=vmname)
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hvmtemplate.create_on_disk(verbose=self.verbose)
self.fill_image(os.path.join(hvmtemplate.dir_path, '00file'),
195*1024*1024-4096*3)
self.fill_image(hvmtemplate.private_img, 195*1024*1024-4096*3)
self.fill_image(hvmtemplate.root_img, 1024*1024*1024, sparse=True)
vms.append(hvmtemplate)
self.qc.save()
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self.make_backup(vms)
self.remove_vms(vms)
self.restore_backup()
self.remove_vms(vms)
def test_005_compressed_custom(self):
vms = self.create_backup_vms()
self.make_backup(vms, do_kwargs={'compressed': "bzip2"})
self.remove_vms(vms)
self.restore_backup()
self.remove_vms(vms)
def test_100_backup_dom0_no_restore(self):
self.make_backup([self.qc[0]])
# TODO: think of some safe way to test restore...
def test_200_restore_over_existing_directory(self):
"""
Regression test for #1386
:return:
"""
vms = self.create_backup_vms()
self.make_backup(vms)
self.remove_vms(vms)
test_dir = vms[0].dir_path
os.mkdir(test_dir)
with open(os.path.join(test_dir, 'some-file.txt'), 'w') as f:
f.write('test file\n')
self.restore_backup(
expect_errors=[
'*** Directory {} already exists! It has been moved'.format(
test_dir)
])
self.remove_vms(vms)
def test_210_auto_rename(self):
"""
Test for #869
:return:
"""
vms = self.create_backup_vms()
self.make_backup(vms)
self.restore_backup(options={
'rename-conflicting': True
})
for vm in vms:
self.assertIsNotNone(self.qc.get_vm_by_name(vm.name+'1'))
restored_vm = self.qc.get_vm_by_name(vm.name+'1')
if vm.netvm and not vm.uses_default_netvm:
self.assertEqual(restored_vm.netvm.name, vm.netvm.name+'1')
self.remove_vms(vms)
class TC_10_BackupVMMixin(qubes.tests.BackupTestsMixin):
def setUp(self):
super(TC_10_BackupVMMixin, self).setUp()
self.backupvm = self.qc.add_new_vm(
"QubesAppVm",
name=self.make_vm_name('backupvm'),
template=self.qc.get_vm_by_name(self.template)
)
self.backupvm.create_on_disk(verbose=self.verbose)
def test_100_send_to_vm_file_with_spaces(self):
vms = self.create_backup_vms()
self.backupvm.start()
self.backupvm.run("mkdir '/var/tmp/backup directory'", wait=True)
self.make_backup(vms,
do_kwargs={
'appvm': self.backupvm,
'compressed': True,
'encrypted': True},
target='/var/tmp/backup directory')
self.remove_vms(vms)
p = self.backupvm.run("ls /var/tmp/backup*/qubes-backup*",
passio_popen=True)
(backup_path, _) = p.communicate()
backup_path = backup_path.strip()
self.restore_backup(source=backup_path,
appvm=self.backupvm)
self.remove_vms(vms)
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def test_110_send_to_vm_command(self):
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vms = self.create_backup_vms()
self.backupvm.start()
self.make_backup(vms,
do_kwargs={
'appvm': self.backupvm,
'compressed': True,
'encrypted': True},
target='dd of=/var/tmp/backup-test')
self.remove_vms(vms)
self.restore_backup(source='dd if=/var/tmp/backup-test',
appvm=self.backupvm)
self.remove_vms(vms)
def test_110_send_to_vm_no_space(self):
"""
Check whether backup properly report failure when no enough space is
available
:return:
"""
vms = self.create_backup_vms()
self.backupvm.start()
retcode = self.backupvm.run(
# Debian 7 has too old losetup to handle loop-control device
"mknod /dev/loop0 b 7 0;"
"truncate -s 50M /home/user/backup.img && "
"mkfs.ext4 -F /home/user/backup.img && "
"mkdir /home/user/backup && "
"mount /home/user/backup.img /home/user/backup -o loop &&"
"chmod 777 /home/user/backup",
user="root", wait=True)
if retcode != 0:
raise RuntimeError("Failed to prepare backup directory")
with self.assertRaises(QubesException):
self.make_backup(vms,
do_kwargs={
'appvm': self.backupvm,
'compressed': False,
'encrypted': True},
target='/home/user/backup',
expect_failure=True)
self.qc.lock_db_for_writing()
self.qc.load()
self.remove_vms(vms)
def load_tests(loader, tests, pattern):
try:
qc = qubes.qubes.QubesVmCollection()
qc.lock_db_for_reading()
qc.load()
qc.unlock_db()
templates = [vm.name for vm in qc.values() if
isinstance(vm, QubesTemplateVm)]
except OSError:
templates = []
for template in templates:
tests.addTests(loader.loadTestsFromTestCase(
type(
'TC_10_BackupVM_' + template,
(TC_10_BackupVMMixin, qubes.tests.QubesTestCase),
{'template': template})))
return tests