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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# This is unit with tests for LDAP access checks
import optparse
import sys
import base64
import copy
sys.path.insert(0, "bin/python")
import samba
from samba.tests.subunitrun import SubunitOptions, TestProgram
import samba.getopt as options
from ldb import SCOPE_BASE, SCOPE_SUBTREE, LdbError, ERR_INVALID_CREDENTIALS
from samba import gensec
import samba.tests
from samba.tests import delete_force
from samba.credentials import Credentials
def create_credential(lp, other):
c = Credentials()
c.guess(lp)
c.set_gensec_features(other.get_gensec_features())
return c
parser = optparse.OptionParser("bind [options] <host>")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
# use command line creds if available
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
subunitopts = SubunitOptions(parser)
parser.add_option_group(subunitopts)
opts, args = parser.parse_args()
if len(args) < 1:
parser.print_usage()
sys.exit(1)
host = args[0]
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
creds_machine = create_credential(lp, creds)
creds_virtual = create_credential(lp, creds)
creds_user1 = create_credential(lp, creds)
creds_user2 = create_credential(lp, creds)
creds_user3 = create_credential(lp, creds)
creds_user4 = create_credential(lp, creds)
creds_user5 = create_credential(lp, creds)
creds_user6 = create_credential(lp, creds)
creds_user7 = create_credential(lp, creds)
class BindTests(samba.tests.TestCase):
info_dc = None
def setUp(self):
super(BindTests, self).setUp()
# fetch rootDSEs
self.ldb = samba.tests.connect_samdb(host, credentials=creds, lp=lp, ldap_only=True)
if self.info_dc is None:
res = self.ldb.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
self.assertEqual(len(res), 1)
BindTests.info_dc = res[0]
# cache some of RootDSE props
self.schema_dn = self.info_dc["schemaNamingContext"][0]
self.domain_dn = self.info_dc["defaultNamingContext"][0]
self.config_dn = self.info_dc["configurationNamingContext"][0]
self.realm = self.info_dc["ldapServiceName"][0].split(b'@')[1].decode('utf-8')
self.computer_dn = "CN=centos53,CN=Computers,%s" % self.domain_dn
self.virtual_user_dn = "CN=frednurk@%s,CN=Computers,%s" % (self.realm, self.domain_dn)
self.password = "P@ssw0rd"
self.username = "BindTestUser"
def tearDown(self):
delete_force(self.ldb, self.virtual_user_dn)
super(BindTests, self).tearDown()
def test_virtual_email_account_style_bind(self):
# create a user in the style often deployed for authentication
# of virtual email account at a hosting provider
#
# The userPrincipalName must not match the samAccountName for
# this test to detect when the LDAP DN is being double-parsed
# but must be in the user@realm style to allow the account to
# be created
try:
self.ldb.add_ldif("""
dn: """ + self.virtual_user_dn + """
cn: frednurk@""" + self.realm + """
displayName: Fred Nurk
sAMAccountName: frednurk@""" + self.realm + """
userPrincipalName: frednurk@NOT.""" + self.realm + """
countryCode: 0
objectClass: computer
objectClass: organizationalPerson
objectClass: person
objectClass: top
objectClass: user
""")
except LdbError as e:
(num, msg) = e.args
self.fail(f"Failed to create e-mail user: {msg}")
self.addCleanup(delete_force, self.ldb, self.virtual_user_dn)
try:
self.ldb.modify_ldif("""
dn: """ + self.virtual_user_dn + """
changetype: modify
replace: unicodePwd
unicodePwd:: """ + base64.b64encode(u"\"P@ssw0rd\"".encode('utf-16-le')).decode('utf8') + """
""")
except LdbError as e:
(num, msg) = e.args
self.fail(f"Failed to set password on e-mail user: {msg}")
self.ldb.enable_account('distinguishedName=%s' % self.virtual_user_dn)
# do a simple bind and search with the machine account
creds_virtual.set_bind_dn(self.virtual_user_dn)
creds_virtual.set_password(self.password)
print("BindTest with: " + creds_virtual.get_bind_dn())
try:
ldb_virtual = samba.tests.connect_samdb(host, credentials=creds_virtual,
lp=lp, ldap_only=True)
except LdbError as e:
(num, msg) = e.args
if num != ERR_INVALID_CREDENTIALS:
raise
self.fail(msg)
res = ldb_virtual.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
def test_computer_account_bind(self):
# create a computer acocount for the test
delete_force(self.ldb, self.computer_dn)
self.ldb.add_ldif("""
dn: """ + self.computer_dn + """
cn: CENTOS53
displayName: CENTOS53$
name: CENTOS53
sAMAccountName: CENTOS53$
countryCode: 0
objectClass: computer
objectClass: organizationalPerson
objectClass: person
objectClass: top
objectClass: user
codePage: 0
userAccountControl: 4096
dNSHostName: centos53.alabala.test
operatingSystemVersion: 5.2 (3790)
operatingSystem: Windows Server 2003
""")
self.ldb.modify_ldif("""
dn: """ + self.computer_dn + """
changetype: modify
replace: unicodePwd
unicodePwd:: """ + base64.b64encode(u"\"P@ssw0rd\"".encode('utf-16-le')).decode('utf8') + """
""")
# do a simple bind and search with the machine account
creds_machine.set_bind_dn(self.computer_dn)
creds_machine.set_password(self.password)
print("BindTest with: " + creds_machine.get_bind_dn())
ldb_machine = samba.tests.connect_samdb(host, credentials=creds_machine,
lp=lp, ldap_only=True)
res = ldb_machine.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
def test_user_account_bind(self):
# create user
self.ldb.newuser(username=self.username, password=self.password)
ldb_res = self.ldb.search(base=self.domain_dn,
scope=SCOPE_SUBTREE,
expression="(samAccountName=%s)" % self.username,
attrs=["objectSid"])
self.assertEqual(len(ldb_res), 1)
user_dn = ldb_res[0]["dn"]
self.addCleanup(delete_force, self.ldb, user_dn)
# do a simple bind and search with the user account in format user@realm
creds_user1.set_bind_dn(self.username + "@" + creds.get_realm())
creds_user1.set_password(self.password)
print("BindTest with: " + creds_user1.get_bind_dn())
ldb_user1 = samba.tests.connect_samdb(host, credentials=creds_user1,
lp=lp, ldap_only=True)
res = ldb_user1.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
# do a simple bind and search with the user account in format domain\user
creds_user2.set_bind_dn(creds.get_domain() + "\\" + self.username)
creds_user2.set_password(self.password)
print("BindTest with: " + creds_user2.get_bind_dn())
ldb_user2 = samba.tests.connect_samdb(host, credentials=creds_user2,
lp=lp, ldap_only=True)
res = ldb_user2.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
# do a simple bind and search with the user account DN
creds_user3.set_bind_dn(str(user_dn))
creds_user3.set_password(self.password)
print("BindTest with: " + creds_user3.get_bind_dn())
ldb_user3 = samba.tests.connect_samdb(host, credentials=creds_user3,
lp=lp, ldap_only=True)
res = ldb_user3.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
# do a simple bind and search with the user account SID
creds_user5.set_bind_dn(self.ldb.schema_format_value("objectSid", ldb_res[0]["objectSid"][0]).decode('utf8'))
creds_user5.set_password(self.password)
print("BindTest with: " + creds_user5.get_bind_dn())
ldb_user5 = samba.tests.connect_samdb(host, credentials=creds_user5,
lp=lp, ldap_only=True)
res = ldb_user5.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
# do a simple bind and search with the canonical name
creds_user6.set_bind_dn(user_dn.canonical_str())
creds_user6.set_password(self.password)
print("BindTest with: " + creds_user6.get_bind_dn())
ldb_user6 = samba.tests.connect_samdb(host, credentials=creds_user6,
lp=lp, ldap_only=True)
res = ldb_user6.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
# do a simple bind and search with the extended canonical name
creds_user7.set_bind_dn(user_dn.canonical_ex_str())
creds_user7.set_password(self.password)
print("BindTest with: " + creds_user7.get_bind_dn())
ldb_user7 = samba.tests.connect_samdb(host, credentials=creds_user7,
lp=lp, ldap_only=True)
res = ldb_user7.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
def test_user_account_bind_no_domain(self):
# create user
self.ldb.newuser(username=self.username, password=self.password)
ldb_res = self.ldb.search(base=self.domain_dn,
scope=SCOPE_SUBTREE,
expression="(samAccountName=%s)" % self.username)
self.assertEqual(len(ldb_res), 1)
user_dn = ldb_res[0]["dn"]
self.addCleanup(delete_force, self.ldb, user_dn)
creds_user4.set_username(self.username)
creds_user4.set_password(self.password)
creds_user4.set_domain('')
creds_user4.set_workstation('')
print("BindTest (no domain) with: " + self.username)
try:
ldb_user4 = samba.tests.connect_samdb(host, credentials=creds_user4,
lp=lp, ldap_only=True)
except:
self.fail("Failed to connect without the domain set")
res = ldb_user4.search(base="", expression="", scope=SCOPE_BASE, attrs=["*"])
TestProgram(module=__name__, opts=subunitopts)
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