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# Test joining as a DC and check the join was done right
#
# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2017
#
# 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/>.
#
import samba
import sys
import shutil
import os
from samba.tests.dns_base import DNSTKeyTest
from samba.join import DCJoinContext
from samba.dcerpc import drsuapi, misc, dns
from samba.credentials import Credentials
from samba.provision import interface_ips_v4
def get_logger(name="subunit"):
"""Get a logger object."""
import logging
logger = logging.getLogger(name)
logger.addHandler(logging.StreamHandler(sys.stderr))
return logger
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().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)
self.rm_dirs("etc", "msg.lock", "bind-dns")
self.rm_files("names.tdb")
self.join_ctx.cleanup_old_join(force=True)
super().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 = interface_ips_v4(self.lp, all_interfaces=True)
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.assertEqual(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.assertEqual(response.ancount, 1 + len(IPs))
self.assertEqual(response.answers[0].rr_type, dns.DNS_QTYPE_CNAME)
self.assertEqual(response.answers[0].rdata, self.join_ctx.dnshostname)
self.assertEqual(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 = interface_ips_v4(self.lp, all_interfaces=True)
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.tkey['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.assertEqual(response.ancount, 1)
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