def setUp(self):
super(DrsRodcTestCase, self).setUp()
self.base_dn = self.ldb_dc1.get_default_basedn()
self.ou = samba.tests.create_test_ou(self.ldb_dc1, "test_drs_rodc")
self.allowed_group = "CN=Allowed RODC Password Replication Group,CN=Users,%s" % self.base_dn
self.site = self.ldb_dc1.server_site_name()
self.rodc_name = "TESTRODCDRS%s" % random.randint(1, 10000000)
self.rodc_pass = "******"
self.computer_dn = "CN=%s,OU=Domain Controllers,%s" % (self.rodc_name, self.base_dn)
self.rodc_ctx = DCJoinContext(server=self.ldb_dc1.host_dns_name(),
creds=self.get_credentials(),
lp=self.get_loadparm(), site=self.site,
netbios_name=self.rodc_name,
targetdir=None, domain=None,
machinepass=self.rodc_pass)
self._create_rodc(self.rodc_ctx)
self.rodc_ctx.create_tmp_samdb()
self.tmp_samdb = self.rodc_ctx.tmp_samdb
rodc_creds = Credentials()
rodc_creds.guess(self.rodc_ctx.lp)
rodc_creds.set_username(self.rodc_name + '$')
rodc_creds.set_password(self.rodc_pass)
self.rodc_creds = rodc_creds
(self.drs, self.drs_handle) = self._ds_bind(self.dnsname_dc1)
(self.rodc_drs, self.rodc_drs_handle) = self._ds_bind(self.dnsname_dc1, rodc_creds)
def setUp(self):
self.server = samba.tests.env_get_var_value("SERVER")
self.server_ip = samba.tests.env_get_var_value("SERVER_IP")
super(JoinTestCase, self).setUp()
self.lp = samba.tests.env_loadparm()
self.creds = self.get_credentials()
self.netbios_name = "jointest1"
logger = get_logger()
self.join_ctx = DCJoinContext(server=self.server,
creds=self.creds,
lp=self.get_loadparm(),
netbios_name=self.netbios_name,
targetdir=self.tempdir,
domain=None,
logger=logger,
dns_backend="SAMBA_INTERNAL")
self.join_ctx.userAccountControl = (
samba.dsdb.UF_SERVER_TRUST_ACCOUNT
| samba.dsdb.UF_TRUSTED_FOR_DELEGATION)
self.join_ctx.replica_flags |= (
drsuapi.DRSUAPI_DRS_WRIT_REP
| drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS)
self.join_ctx.domain_replica_flags = self.join_ctx.replica_flags
self.join_ctx.secure_channel_type = misc.SEC_CHAN_BDC
self.join_ctx.cleanup_old_join()
self.join_ctx.force_all_ips = True
self.join_ctx.do_join()
class DrsRodcTestCase(drs_base.DrsBaseTestCase):
"""Intended as a semi-black box test case for replication involving
an RODC."""
def setUp(self):
super(DrsRodcTestCase, self).setUp()
self.base_dn = self.ldb_dc1.get_default_basedn()
self.ou = samba.tests.create_test_ou(self.ldb_dc1, "test_drs_rodc")
self.allowed_group = "CN=Allowed RODC Password Replication Group,CN=Users,%s" % self.base_dn
self.site = self.ldb_dc1.server_site_name()
self.rodc_name = "TESTRODCDRS%s" % random.randint(1, 10000000)
self.rodc_pass = "******"
self.computer_dn = "CN=%s,OU=Domain Controllers,%s" % (self.rodc_name, self.base_dn)
self.rodc_ctx = DCJoinContext(server=self.ldb_dc1.host_dns_name(),
creds=self.get_credentials(),
lp=self.get_loadparm(), site=self.site,
netbios_name=self.rodc_name,
targetdir=None, domain=None,
machinepass=self.rodc_pass)
self._create_rodc(self.rodc_ctx)
self.rodc_ctx.create_tmp_samdb()
self.tmp_samdb = self.rodc_ctx.tmp_samdb
rodc_creds = Credentials()
rodc_creds.guess(self.rodc_ctx.lp)
rodc_creds.set_username(self.rodc_name + '$')
rodc_creds.set_password(self.rodc_pass)
self.rodc_creds = rodc_creds
(self.drs, self.drs_handle) = self._ds_bind(self.dnsname_dc1)
(self.rodc_drs, self.rodc_drs_handle) = self._ds_bind(self.dnsname_dc1, rodc_creds)
def tearDown(self):
self.rodc_ctx.cleanup_old_join()
super(DrsRodcTestCase, self).tearDown()
def test_admin_repl_secrets(self):
"""
When a secret attribute is set to be replicated to an RODC with the
admin credentials, it should always replicate regardless of whether
or not it's in the Allowed RODC Password Replication Group.
"""
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
user_name = "test_rodcA_%s" % rand
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, 'penguin12#', False, user_name)
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
(level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, 10, req10)
# Check that the user has been added to msDSRevealedUsers
self._assert_in_revealed_users(user_dn, expected_user_attributes)
def test_rodc_repl_secrets(self):
"""
When a secret attribute is set to be replicated to an RODC with
the RODC account credentials, it should not replicate if it's in
the Allowed RODC Password Replication Group. Once it is added to
the group, it should replicate.
"""
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
user_name = "test_rodcB_%s" % rand
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, 'penguin12#', False, user_name)
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e:
(enum, estr) = e.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
# send the same request again and we should get the same response
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e1:
(enum, estr) = e1.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
# Retry with Administrator credentials, ignores password replication groups
(level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, 10, req10)
# Check that the user has been added to msDSRevealedUsers
self._assert_in_revealed_users(user_dn, expected_user_attributes)
def test_rodc_repl_secrets_follow_on_req(self):
"""
Checks that an RODC can't subvert an existing (valid) GetNCChanges
request to reveal secrets it shouldn't have access to.
"""
# send an acceptable request that will match as many GUIDs as possible.
# Here we set the SPECIAL_SECRET_PROCESSING flag so that the request gets accepted.
# (On the server, this builds up the getnc_state->guids array)
req8 = self._exop_req8(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=self.ldb_dc1.domain_dn(),
exop=drsuapi.DRSUAPI_EXOP_NONE,
max_objects=1,
replica_flags=drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING)
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 8, req8)
# Get the next replication chunk, but set REPL_SECRET this time. This
# is following on the the previous accepted request, but we've changed
# exop to now request secrets. This request should fail
try:
req8 = self._exop_req8(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=self.ldb_dc1.domain_dn(),
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET)
req8.highwatermark = ctr.new_highwatermark
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 8, req8)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except RuntimeError as e2:
(enum, estr) = e2.args
pass
def test_msDSRevealedUsers_admin(self):
"""
When a secret attribute is to be replicated to an RODC, the contents
of the attribute should be added to the msDSRevealedUsers attribute
of the computer object corresponding to the RODC.
"""
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
# Add a user on DC1, add it to allowed password replication
# group, and replicate to RODC with EXOP_REPL_SECRETS
user_name = "test_rodcC_%s" % rand
password = "******"
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, password, False, user_name)
self.ldb_dc1.add_remove_group_members("Allowed RODC Password Replication Group",
[user_name],
add_members_operation=True)
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
(level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, 10, req10)
# Check that the user has been added to msDSRevealedUsers
(packed_attrs_1, unpacked_attrs_1) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
# Change the user's password on DC1
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, password + "1", False, user_name)
(packed_attrs_2, unpacked_attrs_2) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
self._assert_attrlist_equals(unpacked_attrs_1, unpacked_attrs_2)
# Replicate to RODC again with EXOP_REPL_SECRETS
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
(level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, 10, req10)
# This is important for Windows, because the entry won't have been
# updated in time if we don't have it. Even with this sleep, it only
# passes some of the time...
time.sleep(5)
# Check that the entry in msDSRevealedUsers has been updated
(packed_attrs_3, unpacked_attrs_3) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
self._assert_attrlist_changed(unpacked_attrs_2, unpacked_attrs_3, expected_user_attributes)
# We should be able to delete the user
self.ldb_dc1.deleteuser(user_name)
res = self.ldb_dc1.search(scope=ldb.SCOPE_BASE, base=self.computer_dn,
attrs=["msDS-RevealedUsers"])
self.assertFalse("msDS-RevealedUsers" in res[0])
def test_msDSRevealedUsers(self):
"""
When a secret attribute is to be replicated to an RODC, the contents
of the attribute should be added to the msDSRevealedUsers attribute
of the computer object corresponding to the RODC.
"""
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
# Add a user on DC1, add it to allowed password replication
# group, and replicate to RODC with EXOP_REPL_SECRETS
user_name = "test_rodcD_%s" % rand
password = "******"
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, password, False, user_name)
self.ldb_dc1.add_remove_group_members("Allowed RODC Password Replication Group",
[user_name],
add_members_operation=True)
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
(level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, 10, req10)
# Check that the user has been added to msDSRevealedUsers
(packed_attrs_1, unpacked_attrs_1) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
# Change the user's password on DC1
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, password + "1", False, user_name)
(packed_attrs_2, unpacked_attrs_2) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
self._assert_attrlist_equals(unpacked_attrs_1, unpacked_attrs_2)
# Replicate to RODC again with EXOP_REPL_SECRETS
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
# This is important for Windows, because the entry won't have been
# updated in time if we don't have it. Even with this sleep, it only
# passes some of the time...
time.sleep(5)
# Check that the entry in msDSRevealedUsers has been updated
(packed_attrs_3, unpacked_attrs_3) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
self._assert_attrlist_changed(unpacked_attrs_2, unpacked_attrs_3, expected_user_attributes)
# We should be able to delete the user
self.ldb_dc1.deleteuser(user_name)
res = self.ldb_dc1.search(scope=ldb.SCOPE_BASE, base=self.computer_dn,
attrs=["msDS-RevealedUsers"])
self.assertFalse("msDS-RevealedUsers" in res[0])
def test_msDSRevealedUsers_pas(self):
"""
If we provide a Partial Attribute Set when replicating to an RODC,
we should ignore it and replicate all of the secret attributes anyway
msDSRevealedUsers attribute.
"""
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
pas_exceptions = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
# Add a user on DC1, add it to allowed password replication
# group, and replicate to RODC with EXOP_REPL_SECRETS
user_name = "test_rodcE_%s" % rand
password = "******"
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, password, False, user_name)
self.ldb_dc1.add_remove_group_members("Allowed RODC Password Replication Group",
[user_name],
add_members_operation=True)
pas = drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb, exceptions=pas_exceptions)
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=pas,
max_objects=133,
replica_flags=0)
(level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, 10, req10)
# Make sure that we still replicate the secrets
for attribute in ctr.first_object.object.attribute_ctr.attributes:
if attribute.attid in pas_exceptions:
pas_exceptions.remove(attribute.attid)
for attribute in pas_exceptions:
self.fail("%d was not replicated even though the partial attribute set should be ignored."
% attribute)
# Check that the user has been added to msDSRevealedUsers
(packed_attrs_1, unpacked_attrs_1) = self._assert_in_revealed_users(user_dn, expected_user_attributes)
def test_msDSRevealedUsers_using_other_RODC(self):
"""
Ensure that the machine account is tied to the destination DSA.
"""
# Create a new identical RODC with just the first letter missing
other_rodc_name = self.rodc_name[1:]
other_rodc_ctx = DCJoinContext(server=self.ldb_dc1.host_dns_name(),
creds=self.get_credentials(),
lp=self.get_loadparm(), site=self.site,
netbios_name=other_rodc_name,
targetdir=None, domain=None,
machinepass=self.rodc_pass)
self._create_rodc(other_rodc_ctx)
other_rodc_creds = Credentials()
other_rodc_creds.guess(other_rodc_ctx.lp)
other_rodc_creds.set_username(other_rodc_name + '$')
other_rodc_creds.set_password(self.rodc_pass)
(other_rodc_drs, other_rodc_drs_handle) = self._ds_bind(self.dnsname_dc1, other_rodc_creds)
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
user_name = "test_rodcF_%s" % rand
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, 'penguin12#', False, user_name)
self.ldb_dc1.add_remove_group_members("Allowed RODC Password Replication Group",
[user_name],
add_members_operation=True)
req10 = self._getnc_req10(dest_dsa=str(other_rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e3:
(enum, estr) = e3.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
try:
(level, ctr) = other_rodc_drs.DsGetNCChanges(other_rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e4:
(enum, estr) = e4.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
def test_msDSRevealedUsers_local_deny_allow(self):
"""
Ensure that the deny trumps allow, and we can modify these
attributes directly instead of the global groups.
This may fail on Windows due to tokenGroup calculation caching.
"""
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
# Add a user on DC1, add it to allowed password replication
# group, and replicate to RODC with EXOP_REPL_SECRETS
user_name = "test_rodcF_%s" % rand
password = "******"
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, password, False, user_name)
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
m = ldb.Message()
m.dn = ldb.Dn(self.ldb_dc1, self.computer_dn)
m["msDS-RevealOnDemandGroup"] = \
ldb.MessageElement(user_dn, ldb.FLAG_MOD_ADD,
"msDS-RevealOnDemandGroup")
self.ldb_dc1.modify(m)
# In local allow, should be success
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
except:
self.fail("Should have succeeded when in local allow group")
self._assert_in_revealed_users(user_dn, expected_user_attributes)
(self.rodc_drs, self.rodc_drs_handle) = self._ds_bind(self.dnsname_dc1, self.rodc_creds)
m = ldb.Message()
m.dn = ldb.Dn(self.ldb_dc1, self.computer_dn)
m["msDS-NeverRevealGroup"] = \
ldb.MessageElement(user_dn, ldb.FLAG_MOD_ADD,
"msDS-NeverRevealGroup")
self.ldb_dc1.modify(m)
# In local allow and deny, should be failure
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e5:
(enum, estr) = e5.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
m = ldb.Message()
m.dn = ldb.Dn(self.ldb_dc1, self.computer_dn)
m["msDS-RevealOnDemandGroup"] = \
ldb.MessageElement(user_dn, ldb.FLAG_MOD_DELETE,
"msDS-RevealOnDemandGroup")
self.ldb_dc1.modify(m)
# In local deny, should be failure
(self.rodc_drs, self.rodc_drs_handle) = self._ds_bind(self.dnsname_dc1, self.rodc_creds)
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e6:
(enum, estr) = e6.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
def _assert_in_revealed_users(self, user_dn, attrlist):
res = self.ldb_dc1.search(scope=ldb.SCOPE_BASE, base=self.computer_dn,
attrs=["msDS-RevealedUsers"])
revealed_users = res[0]["msDS-RevealedUsers"]
actual_attrids = []
packed_attrs = []
unpacked_attrs = []
for attribute in revealed_users:
attribute = attribute.decode('utf8')
dsdb_dn = dsdb_Dn(self.ldb_dc1, attribute)
metadata = ndr_unpack(drsblobs.replPropertyMetaData1, dsdb_dn.get_bytes())
if user_dn in attribute:
unpacked_attrs.append(metadata)
packed_attrs.append(dsdb_dn.get_bytes())
actual_attrids.append(metadata.attid)
self.assertEqual(sorted(actual_attrids), sorted(attrlist))
return (packed_attrs, unpacked_attrs)
def _assert_attrlist_equals(self, list_1, list_2):
return self._assert_attrlist_changed(list_1, list_2, [], num_changes=0, expected_new_usn=False)
def _assert_attrlist_changed(self, list_1, list_2, changed_attributes, num_changes=1, expected_new_usn=True):
for i in range(len(list_2)):
self.assertEqual(list_1[i].attid, list_2[i].attid)
self.assertEqual(list_1[i].originating_invocation_id, list_2[i].originating_invocation_id)
self.assertEqual(list_1[i].version + num_changes, list_2[i].version)
if expected_new_usn:
self.assertTrue(list_1[i].originating_usn < list_2[i].originating_usn)
self.assertTrue(list_1[i].local_usn < list_2[i].local_usn)
else:
self.assertEqual(list_1[i].originating_usn, list_2[i].originating_usn)
self.assertEqual(list_1[i].local_usn, list_2[i].local_usn)
if list_1[i].attid in changed_attributes:
# We do the changes too quickly, so unless we put sleeps
# inbetween calls, these remain the same. Checking the USNs
# is enough.
pass
#self.assertTrue(list_1[i].originating_change_time < list_2[i].originating_change_time)
else:
self.assertEqual(list_1[i].originating_change_time, list_2[i].originating_change_time)
def _create_rodc(self, ctx):
ctx.nc_list = [ctx.base_dn, ctx.config_dn, ctx.schema_dn]
ctx.full_nc_list = [ctx.base_dn, ctx.config_dn, ctx.schema_dn]
ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
ctx.never_reveal_sid = ["<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
"<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
"<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
"<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
"<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS]
ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)
mysid = ctx.get_mysid()
admin_dn = "<SID=%s>" % mysid
ctx.managedby = admin_dn
ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)
ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
ctx.secure_channel_type = misc.SEC_CHAN_RODC
ctx.RODC = True
ctx.replica_flags = (drsuapi.DRSUAPI_DRS_INIT_SYNC |
drsuapi.DRSUAPI_DRS_PER_SYNC |
drsuapi.DRSUAPI_DRS_GET_ANC |
drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING)
ctx.join_add_objects()
def test_msDSRevealedUsers_using_other_RODC(self):
"""
Ensure that the machine account is tied to the destination DSA.
"""
# Create a new identical RODC with just the first letter missing
other_rodc_name = self.rodc_name[1:]
other_rodc_ctx = DCJoinContext(server=self.ldb_dc1.host_dns_name(),
creds=self.get_credentials(),
lp=self.get_loadparm(), site=self.site,
netbios_name=other_rodc_name,
targetdir=None, domain=None,
machinepass=self.rodc_pass)
self._create_rodc(other_rodc_ctx)
other_rodc_creds = Credentials()
other_rodc_creds.guess(other_rodc_ctx.lp)
other_rodc_creds.set_username(other_rodc_name + '$')
other_rodc_creds.set_password(self.rodc_pass)
(other_rodc_drs, other_rodc_drs_handle) = self._ds_bind(self.dnsname_dc1, other_rodc_creds)
rand = random.randint(1, 10000000)
expected_user_attributes = [drsuapi.DRSUAPI_ATTID_lmPwdHistory,
drsuapi.DRSUAPI_ATTID_supplementalCredentials,
drsuapi.DRSUAPI_ATTID_ntPwdHistory,
drsuapi.DRSUAPI_ATTID_unicodePwd,
drsuapi.DRSUAPI_ATTID_dBCSPwd]
user_name = "test_rodcF_%s" % rand
user_dn = "CN=%s,%s" % (user_name, self.ou)
self.ldb_dc1.add({
"dn": user_dn,
"objectclass": "user",
"sAMAccountName": user_name
})
# Store some secret on this user
self.ldb_dc1.setpassword("(sAMAccountName=%s)" % user_name, 'penguin12#', False, user_name)
self.ldb_dc1.add_remove_group_members("Allowed RODC Password Replication Group",
[user_name],
add_members_operation=True)
req10 = self._getnc_req10(dest_dsa=str(other_rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
try:
(level, ctr) = self.rodc_drs.DsGetNCChanges(self.rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e3:
(enum, estr) = e3.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
req10 = self._getnc_req10(dest_dsa=str(self.rodc_ctx.ntds_guid),
invocation_id=self.ldb_dc1.get_invocation_id(),
nc_dn_str=user_dn,
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET,
partial_attribute_set=drs_get_rodc_partial_attribute_set(self.ldb_dc1, self.tmp_samdb),
max_objects=133,
replica_flags=0)
try:
(level, ctr) = other_rodc_drs.DsGetNCChanges(other_rodc_drs_handle, 10, req10)
self.fail("Successfully replicated secrets to an RODC that shouldn't have been replicated.")
except WERRORError as e4:
(enum, estr) = e4.args
self.assertEqual(enum, 8630) # ERROR_DS_DRA_SECRETS_DENIED
def run(self,
sambaopts=None,
credopts=None,
backup_file=None,
targetdir=None,
newservername=None,
host_ip=None,
host_ip6=None):
if not (backup_file and os.path.exists(backup_file)):
raise CommandError('Backup file not found.')
if targetdir is None:
raise CommandError('Please specify a target directory')
# allow restoredc to install into a directory prepopulated by selftest
if (os.path.exists(targetdir) and os.listdir(targetdir)
and os.environ.get('SAMBA_SELFTEST') != '1'):
raise CommandError('Target directory is not empty')
if not newservername:
raise CommandError('Server name required')
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
logger.addHandler(logging.StreamHandler(sys.stdout))
# ldapcmp prefers the server's netBIOS name in upper-case
newservername = newservername.upper()
# extract the backup .tar to a temp directory
targetdir = os.path.abspath(targetdir)
tf = tarfile.open(backup_file)
tf.extractall(targetdir)
tf.close()
# use the smb.conf that got backed up, by default (save what was
# actually backed up, before we mess with it)
smbconf = os.path.join(targetdir, 'etc', 'smb.conf')
shutil.copyfile(smbconf, smbconf + ".orig")
# if a smb.conf was specified on the cmd line, then use that instead
cli_smbconf = sambaopts.get_loadparm_path()
if cli_smbconf:
logger.info("Using %s as restored domain's smb.conf" % cli_smbconf)
shutil.copyfile(cli_smbconf, smbconf)
lp = samba.param.LoadParm()
lp.load(smbconf)
# open a DB connection to the restored DB
private_dir = os.path.join(targetdir, 'private')
samdb_path = os.path.join(private_dir, 'sam.ldb')
samdb = SamDB(url=samdb_path, session_info=system_session(), lp=lp)
# Create account using the join_add_objects function in the join object
# We need namingContexts, account control flags, and the sid saved by
# the backup process.
res = samdb.search(base="",
scope=ldb.SCOPE_BASE,
attrs=['namingContexts'])
ncs = [str(r) for r in res[0].get('namingContexts')]
creds = credopts.get_credentials(lp)
ctx = DCJoinContext(logger,
creds=creds,
lp=lp,
forced_local_samdb=samdb,
netbios_name=newservername)
ctx.nc_list = ncs
ctx.full_nc_list = ncs
ctx.userAccountControl = (samba.dsdb.UF_SERVER_TRUST_ACCOUNT
| samba.dsdb.UF_TRUSTED_FOR_DELEGATION)
# rewrite the smb.conf to make sure it uses the new targetdir settings.
# (This doesn't update all filepaths in a customized config, but it
# corrects the same paths that get set by a new provision)
logger.info('Updating basic smb.conf settings...')
make_smbconf(smbconf,
newservername,
ctx.domain_name,
ctx.realm,
targetdir,
lp=lp,
serverrole="active directory domain controller")
# Get the SID saved by the backup process and create account
res = samdb.search(base=ldb.Dn(samdb, "@SAMBA_DSDB"),
scope=ldb.SCOPE_BASE,
attrs=['sidForRestore', 'backupRename'])
is_rename = True if 'backupRename' in res[0] else False
sid = res[0].get('sidForRestore')[0]
logger.info('Creating account with SID: ' + str(sid))
ctx.join_add_objects(specified_sid=dom_sid(sid))
m = ldb.Message()
m.dn = ldb.Dn(samdb, '@ROOTDSE')
ntds_guid = str(ctx.ntds_guid)
m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % ntds_guid,
ldb.FLAG_MOD_REPLACE,
"dsServiceName")
samdb.modify(m)
# if we renamed the backed-up domain, then we need to add the DNS
# objects for the new realm (we do this in the restore, now that we
# know the new DC's IP address)
if is_rename:
self.register_dns_zone(logger, samdb, lp, ctx.ntds_guid, host_ip,
host_ip6)
secrets_path = os.path.join(private_dir, 'secrets.ldb')
secrets_ldb = Ldb(secrets_path, session_info=system_session(), lp=lp)
secretsdb_self_join(secrets_ldb,
domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=ctx.domsid,
machinepass=ctx.acct_pass,
key_version_number=ctx.key_version_number,
secure_channel_type=misc.SEC_CHAN_BDC)
# Seize DNS roles
domain_dn = samdb.domain_dn()
forest_dn = samba.dn_from_dns_name(samdb.forest_dns_name())
domaindns_dn = ("CN=Infrastructure,DC=DomainDnsZones,", domain_dn)
forestdns_dn = ("CN=Infrastructure,DC=ForestDnsZones,", forest_dn)
for dn_prefix, dns_dn in [forestdns_dn, domaindns_dn]:
if dns_dn not in ncs:
continue
full_dn = dn_prefix + dns_dn
m = ldb.Message()
m.dn = ldb.Dn(samdb, full_dn)
m["fSMORoleOwner"] = ldb.MessageElement(samdb.get_dsServiceName(),
ldb.FLAG_MOD_REPLACE,
"fSMORoleOwner")
samdb.modify(m)
# Seize other roles
for role in ['rid', 'pdc', 'naming', 'infrastructure', 'schema']:
self.seize_role(role, samdb, force=True)
# Get all DCs and remove them (this ensures these DCs cannot
# replicate because they will not have a password)
search_expr = "(&(objectClass=Server)(serverReference=*))"
res = samdb.search(samdb.get_config_basedn(),
scope=ldb.SCOPE_SUBTREE,
expression=search_expr)
for m in res:
cn = m.get('cn')[0]
if cn != newservername:
remove_dc(samdb, logger, cn)
# Remove the repsFrom and repsTo from each NC to ensure we do
# not try (and fail) to talk to the old DCs
for nc in ncs:
msg = ldb.Message()
msg.dn = ldb.Dn(samdb, nc)
msg["repsFrom"] = ldb.MessageElement([], ldb.FLAG_MOD_REPLACE,
"repsFrom")
msg["repsTo"] = ldb.MessageElement([], ldb.FLAG_MOD_REPLACE,
"repsTo")
samdb.modify(msg)
# Update the krbtgt passwords twice, ensuring no tickets from
# the old domain are valid
update_krbtgt_account_password(samdb)
update_krbtgt_account_password(samdb)
# restore the sysvol directory from the backup tar file, including the
# original NTACLs. Note that the backup_restore() will fail if not root
sysvol_tar = os.path.join(targetdir, 'sysvol.tar.gz')
dest_sysvol_dir = lp.get('path', 'sysvol')
if not os.path.exists(dest_sysvol_dir):
os.makedirs(dest_sysvol_dir)
backup_restore(sysvol_tar, dest_sysvol_dir, samdb, smbconf)
os.remove(sysvol_tar)
# fix up any stale links to the old DCs we just removed
logger.info("Fixing up any remaining references to the old DCs...")
self.fix_old_dc_references(samdb)
# Remove DB markers added by the backup process
m = ldb.Message()
m.dn = ldb.Dn(samdb, "@SAMBA_DSDB")
m["backupDate"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE,
"backupDate")
m["sidForRestore"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE,
"sidForRestore")
if is_rename:
m["backupRename"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE,
"backupRename")
samdb.modify(m)
logger.info("Backup file successfully restored to %s" % targetdir)
logger.info("Please check the smb.conf settings are correct before "
"starting samba.")
class JoinTestCase(DNSTKeyTest):
def setUp(self):
self.server = samba.tests.env_get_var_value("SERVER")
self.server_ip = samba.tests.env_get_var_value("SERVER_IP")
super(JoinTestCase, self).setUp()
self.lp = samba.tests.env_loadparm()
self.creds = self.get_credentials()
self.netbios_name = "jointest1"
logger = get_logger()
self.join_ctx = DCJoinContext(server=self.server,
creds=self.creds,
lp=self.get_loadparm(),
netbios_name=self.netbios_name,
targetdir=self.tempdir,
domain=None,
logger=logger,
dns_backend="SAMBA_INTERNAL")
self.join_ctx.userAccountControl = (
samba.dsdb.UF_SERVER_TRUST_ACCOUNT
| samba.dsdb.UF_TRUSTED_FOR_DELEGATION)
self.join_ctx.replica_flags |= (
drsuapi.DRSUAPI_DRS_WRIT_REP
| drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS)
self.join_ctx.domain_replica_flags = self.join_ctx.replica_flags
self.join_ctx.secure_channel_type = misc.SEC_CHAN_BDC
self.join_ctx.cleanup_old_join()
self.join_ctx.force_all_ips = True
self.join_ctx.do_join()
def tearDown(self):
try:
paths = self.join_ctx.paths
except AttributeError:
paths = None
if paths is not None:
shutil.rmtree(paths.private_dir)
shutil.rmtree(paths.state_dir)
shutil.rmtree(os.path.join(self.tempdir, "etc"))
shutil.rmtree(os.path.join(self.tempdir, "msg.lock"))
os.unlink(os.path.join(self.tempdir, "names.tdb"))
shutil.rmtree(os.path.join(self.tempdir, "bind-dns"))
self.join_ctx.cleanup_old_join(force=True)
super(JoinTestCase, self).tearDown()
def test_join_makes_records(self):
"create a query packet containing one query record via TCP"
p = self.make_name_packet(dns.DNS_OPCODE_QUERY)
questions = []
name = self.join_ctx.dnshostname
q = self.make_name_question(name, dns.DNS_QTYPE_A, dns.DNS_QCLASS_IN)
questions.append(q)
# Get expected IPs
IPs = samba.interface_ips(self.lp)
self.finish_name_packet(p, questions)
(response,
response_packet) = self.dns_transaction_tcp(p, host=self.server_ip)
self.assert_dns_rcode_equals(response, dns.DNS_RCODE_OK)
self.assert_dns_opcode_equals(response, dns.DNS_OPCODE_QUERY)
self.assertEquals(response.ancount, len(IPs))
questions = []
name = "%s._msdcs.%s" % (self.join_ctx.ntds_guid,
self.join_ctx.dnsforest)
q = self.make_name_question(name, dns.DNS_QTYPE_A, dns.DNS_QCLASS_IN)
questions.append(q)
self.finish_name_packet(p, questions)
(response,
response_packet) = self.dns_transaction_tcp(p, host=self.server_ip)
self.assert_dns_rcode_equals(response, dns.DNS_RCODE_OK)
self.assert_dns_opcode_equals(response, dns.DNS_OPCODE_QUERY)
self.assertEquals(response.ancount, 1 + len(IPs))
self.assertEquals(response.answers[0].rr_type, dns.DNS_QTYPE_CNAME)
self.assertEquals(response.answers[0].rdata, self.join_ctx.dnshostname)
self.assertEquals(response.answers[1].rr_type, dns.DNS_QTYPE_A)
def test_join_records_can_update(self):
dc_creds = Credentials()
dc_creds.guess(self.join_ctx.lp)
dc_creds.set_machine_account(self.join_ctx.lp)
self.tkey_trans(creds=dc_creds)
p = self.make_name_packet(dns.DNS_OPCODE_UPDATE)
q = self.make_name_question(self.join_ctx.dnsdomain, dns.DNS_QTYPE_SOA,
dns.DNS_QCLASS_IN)
questions = []
questions.append(q)
self.finish_name_packet(p, questions)
updates = []
# Delete the old expected IPs
IPs = samba.interface_ips(self.lp)
for IP in IPs[1:]:
if ":" in IP:
r = dns.res_rec()
r.name = self.join_ctx.dnshostname
r.rr_type = dns.DNS_QTYPE_AAAA
r.rr_class = dns.DNS_QCLASS_NONE
r.ttl = 0
r.length = 0xffff
rdata = IP
else:
r = dns.res_rec()
r.name = self.join_ctx.dnshostname
r.rr_type = dns.DNS_QTYPE_A
r.rr_class = dns.DNS_QCLASS_NONE
r.ttl = 0
r.length = 0xffff
rdata = IP
r.rdata = rdata
updates.append(r)
p.nscount = len(updates)
p.nsrecs = updates
mac = self.sign_packet(p, self.key_name)
(response, response_p) = self.dns_transaction_udp(p, self.server_ip)
self.assert_dns_rcode_equals(response, dns.DNS_RCODE_OK)
self.verify_packet(response, response_p, mac)
p = self.make_name_packet(dns.DNS_OPCODE_QUERY)
questions = []
name = self.join_ctx.dnshostname
q = self.make_name_question(name, dns.DNS_QTYPE_A, dns.DNS_QCLASS_IN)
questions.append(q)
self.finish_name_packet(p, questions)
(response,
response_packet) = self.dns_transaction_tcp(p, host=self.server_ip)
self.assert_dns_rcode_equals(response, dns.DNS_RCODE_OK)
self.assert_dns_opcode_equals(response, dns.DNS_OPCODE_QUERY)
self.assertEquals(response.ancount, 1)