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# Unix SMB/CIFS implementation.
# Copyright (C) Catalyst IT Ltd. 2019
#
# 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 3 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/>.
#
from samba.tests.samba_tool.base import SambaToolCmdTest
import os
import shutil
class JoinLmdbSizeTestCase(SambaToolCmdTest):
"""Test setting of the lmdb map size during join"""
def setUp(self):
super(JoinLmdbSizeTestCase, self).setUp()
self.tempsambadir = os.path.join(self.tempdir, "samba")
os.mkdir(self.tempsambadir)
(_, name) = os.path.split(self.tempdir)
self.netbios_name = name
# join a domain and set the lmdb map size to size
#
# returns the tuple (ret, stdout, stderr)
def join(self, size=None, role=None):
command = (
"samba-tool " +
"domain join " +
os.environ["REALM"] + " " +
role + " " +
("-U%s%%%s " % (os.environ["USERNAME"], os.environ["PASSWORD"])) +
("--targetdir=%s " % self.tempsambadir) +
("--option=netbiosname=%s " % self.netbios_name) +
"--backend-store=mdb "
)
if size:
command += ("--backend-store-size=%s" % size)
(ret, stdout, stderr) = self.run_command(command)
if ret == 0:
self.cleanup_join(self.netbios_name)
return (ret, stdout, stderr)
def is_rodc(self):
url = "ldb://%s/private/sam.ldb" % self.tempsambadir
samdb = self.getSamDB("-H", url)
return samdb.am_rodc()
#
# Get the lmdb map size for the specified command
#
# While there is a python lmdb package available we use the lmdb command
# line utilities to avoid introducing a dependency.
#
def get_lmdb_environment_size(self, path):
(result, out, err) = self.run_command("mdb_stat -ne %s" % path)
if result:
self.fail("Unable to run mdb_stat\n")
for line in out.split("\n"):
line = line.strip()
if line.startswith("Map size:"):
line = line.replace(" ", "")
(label, size) = line.split(":")
return int(size)
#
# Check the lmdb files created by join and ensure that the map size
# has been set to size.
#
# Currently this is all the *.ldb files in private/sam.ldb.d
#
def check_lmdb_environment_sizes(self, size):
directory = os.path.join(self.tempsambadir, "private", "sam.ldb.d")
for name in os.listdir(directory):
if name.endswith(".ldb"):
path = os.path.join(directory, name)
s = self.get_lmdb_environment_size(path)
if s != size:
self.fail("File %s, size=%d larger than %d" %
(name, s, size))
#
# Ensure that if --backend-store-size is not specified the default of
# 8Gb is used
def test_join_as_dc_default(self):
(result, out, err) = self.join(role="DC")
self.assertEqual(0, result)
self.check_lmdb_environment_sizes(8 * 1024 * 1024 * 1024)
self.assertFalse(self.is_rodc())
#
# Join as an DC with the lmdb backend size set to 1Gb
def test_join_as_dc(self):
(result, out, err) = self.join("1Gb", "DC")
self.assertEqual(0, result)
self.check_lmdb_environment_sizes(1 * 1024 * 1024 * 1024)
self.assertFalse(self.is_rodc())
#
# Join as an RODC with the lmdb backend size set to 128Mb
def test_join_as_rodc(self):
(result, out, err) = self.join("128Mb", "RODC")
self.assertEqual(0, result)
self.check_lmdb_environment_sizes(128 * 1024 * 1024)
self.assertTrue(self.is_rodc())
#
# Join as an RODC with --backend-store-size
def test_join_as_rodc_default(self):
(result, out, err) = self.join(role="RODC")
self.assertEqual(0, result)
self.check_lmdb_environment_sizes(8 * 1024 * 1024 * 1024)
self.assertTrue(self.is_rodc())
def test_no_unit_suffix(self):
(result, out, err) = self.run_command(
'samba-tool domain join --backend-store-size "2"')
self.assertGreater(result, 0)
self.assertRegexpMatches(err,
r"--backend-store-size invalid suffix ''")
def test_invalid_unit_suffix(self):
(result, out, err) = self.run_command(
'samba-tool domain join --backend-store-size "2 cd"')
self.assertGreater(result, 0)
self.assertRegexpMatches(err,
r"--backend-store-size invalid suffix 'cd'")
def test_non_numeric(self):
(result, out, err) = self.run_command(
'samba-tool domain join --backend-store-size "two Gb"')
self.assertGreater(result, 0)
self.assertRegexpMatches(
err,
r"backend-store-size option requires a numeric value, with an"
" optional unit suffix")
def tearDown(self):
super(JoinLmdbSizeTestCase, self).tearDown()
shutil.rmtree(self.tempsambadir)
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