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9f3dcf0e69
level we claim to be during an AD join Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
1796 lines
80 KiB
Python
1796 lines
80 KiB
Python
# python join code
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# Copyright Andrew Tridgell 2010
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# Copyright Andrew Bartlett 2010
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""Joining a domain."""
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from samba.auth import system_session
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from samba.samdb import SamDB
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from samba import gensec, Ldb, drs_utils, arcfour_encrypt, string_to_byte_array
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import ldb
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import samba
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import uuid
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from samba.ndr import ndr_pack, ndr_unpack
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from samba.dcerpc import security, drsuapi, misc, nbt, lsa, drsblobs, dnsserver, dnsp
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from samba.dsdb import DS_DOMAIN_FUNCTION_2003
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from samba.credentials import Credentials, DONT_USE_KERBEROS
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from samba.provision import (secretsdb_self_join, provision, provision_fill,
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FILL_DRS, FILL_SUBDOMAIN, DEFAULTSITE)
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from samba.provision.common import setup_path
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from samba.schema import Schema
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from samba import descriptor
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from samba.net import Net
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from samba.provision.sambadns import setup_bind9_dns
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from samba import read_and_sub_file
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from samba import werror
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from base64 import b64encode
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from samba import WERRORError, NTSTATUSError
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from samba import sd_utils
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from samba.dnsserver import ARecord, AAAARecord, CNAMERecord
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import logging
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import random
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import time
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import re
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import os
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import tempfile
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from collections import OrderedDict
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from samba.common import get_string
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from samba.netcmd import CommandError
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from samba import dsdb, functional_level
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class DCJoinException(Exception):
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def __init__(self, msg):
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super(DCJoinException, self).__init__("Can't join, error: %s" % msg)
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class DCJoinContext(object):
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"""Perform a DC join."""
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def __init__(ctx, logger=None, server=None, creds=None, lp=None, site=None,
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netbios_name=None, targetdir=None, domain=None,
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machinepass=None, use_ntvfs=False, dns_backend=None,
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promote_existing=False, plaintext_secrets=False,
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backend_store=None,
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backend_store_size=None,
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forced_local_samdb=None):
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ctx.logger = logger
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ctx.creds = creds
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ctx.lp = lp
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ctx.site = site
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ctx.targetdir = targetdir
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ctx.use_ntvfs = use_ntvfs
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ctx.plaintext_secrets = plaintext_secrets
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ctx.backend_store = backend_store
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ctx.backend_store_size = backend_store_size
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ctx.promote_existing = promote_existing
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ctx.promote_from_dn = None
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ctx.nc_list = []
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ctx.full_nc_list = []
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ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
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ctx.net = Net(creds=ctx.creds, lp=ctx.lp)
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ctx.server = server
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ctx.forced_local_samdb = forced_local_samdb
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if forced_local_samdb:
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ctx.samdb = forced_local_samdb
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ctx.server = ctx.samdb.url
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else:
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if ctx.server:
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# work out the DC's site (if not already specified)
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if site is None:
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ctx.site = ctx.find_dc_site(ctx.server)
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else:
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# work out the Primary DC for the domain (as well as an
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# appropriate site for the new DC)
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ctx.logger.info("Finding a writeable DC for domain '%s'" % domain)
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ctx.server = ctx.find_dc(domain)
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ctx.logger.info("Found DC %s" % ctx.server)
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ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
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session_info=system_session(),
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credentials=ctx.creds, lp=ctx.lp)
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if ctx.site is None:
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ctx.site = DEFAULTSITE
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try:
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ctx.samdb.search(scope=ldb.SCOPE_BASE, attrs=[])
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except ldb.LdbError as e:
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(enum, estr) = e.args
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raise DCJoinException(estr)
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ctx.base_dn = str(ctx.samdb.get_default_basedn())
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ctx.root_dn = str(ctx.samdb.get_root_basedn())
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ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
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ctx.config_dn = str(ctx.samdb.get_config_basedn())
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ctx.domsid = security.dom_sid(ctx.samdb.get_domain_sid())
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ctx.forestsid = ctx.domsid
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ctx.domain_name = ctx.get_domain_name()
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ctx.forest_domain_name = ctx.get_forest_domain_name()
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ctx.invocation_id = misc.GUID(str(uuid.uuid4()))
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ctx.dc_ntds_dn = ctx.samdb.get_dsServiceName()
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ctx.dc_dnsHostName = ctx.get_dnsHostName()
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ctx.behavior_version = ctx.get_behavior_version()
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if machinepass is not None:
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ctx.acct_pass = machinepass
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else:
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ctx.acct_pass = samba.generate_random_machine_password(120, 120)
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ctx.dnsdomain = ctx.samdb.domain_dns_name()
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# the following are all dependent on the new DC's netbios_name (which
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# we expect to always be specified, except when cloning a DC)
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if netbios_name:
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# work out the DNs of all the objects we will be adding
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ctx.myname = netbios_name
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ctx.samname = "%s$" % ctx.myname
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ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
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ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
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ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)
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ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)
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ctx.dnsforest = ctx.samdb.forest_dns_name()
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topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
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if ctx.dn_exists(topology_base):
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ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
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else:
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ctx.topology_dn = None
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ctx.SPNs = ["HOST/%s" % ctx.myname,
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"HOST/%s" % ctx.dnshostname,
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"GC/%s/%s" % (ctx.dnshostname, ctx.dnsforest)]
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res_rid_manager = ctx.samdb.search(scope=ldb.SCOPE_BASE,
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attrs=["rIDManagerReference"],
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base=ctx.base_dn)
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ctx.rid_manager_dn = res_rid_manager[0]["rIDManagerReference"][0]
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ctx.domaindns_zone = 'DC=DomainDnsZones,%s' % ctx.base_dn
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ctx.forestdns_zone = 'DC=ForestDnsZones,%s' % ctx.root_dn
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expr = "(&(objectClass=crossRef)(ncName=%s))" % ldb.binary_encode(ctx.domaindns_zone)
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res_domaindns = ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
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attrs=[],
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base=ctx.samdb.get_partitions_dn(),
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expression=expr)
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if dns_backend is None:
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ctx.dns_backend = "NONE"
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else:
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if len(res_domaindns) == 0:
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ctx.dns_backend = "NONE"
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print("NO DNS zone information found in source domain, not replicating DNS")
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else:
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ctx.dns_backend = dns_backend
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ctx.realm = ctx.dnsdomain
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ctx.tmp_samdb = None
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ctx.replica_flags = (drsuapi.DRSUAPI_DRS_INIT_SYNC |
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drsuapi.DRSUAPI_DRS_PER_SYNC |
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drsuapi.DRSUAPI_DRS_GET_ANC |
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drsuapi.DRSUAPI_DRS_GET_NC_SIZE |
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drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
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# these elements are optional
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ctx.never_reveal_sid = None
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ctx.reveal_sid = None
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ctx.connection_dn = None
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ctx.RODC = False
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ctx.krbtgt_dn = None
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ctx.drsuapi = None
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ctx.managedby = None
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ctx.subdomain = False
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ctx.adminpass = None
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ctx.partition_dn = None
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ctx.dns_a_dn = None
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ctx.dns_cname_dn = None
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# Do not normally register 127. addresses but allow override for selftest
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ctx.force_all_ips = False
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def del_noerror(ctx, dn, recursive=False):
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if recursive:
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try:
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res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
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except Exception:
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return
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for r in res:
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ctx.del_noerror(r.dn, recursive=True)
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try:
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ctx.samdb.delete(dn)
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print("Deleted %s" % dn)
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except Exception:
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pass
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def cleanup_old_accounts(ctx, force=False):
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res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
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expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
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attrs=["msDS-krbTgtLink", "objectSID"])
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if len(res) == 0:
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return
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if not force:
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creds = Credentials()
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creds.guess(ctx.lp)
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try:
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creds.set_machine_account(ctx.lp)
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creds.set_kerberos_state(ctx.creds.get_kerberos_state())
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machine_samdb = SamDB(url="ldap://%s" % ctx.server,
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session_info=system_session(),
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credentials=creds, lp=ctx.lp)
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except:
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pass
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else:
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token_res = machine_samdb.search(scope=ldb.SCOPE_BASE, base="", attrs=["tokenGroups"])
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if token_res[0]["tokenGroups"][0] \
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== res[0]["objectSID"][0]:
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raise DCJoinException("Not removing account %s which "
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"looks like a Samba DC account "
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"matching the password we already have. "
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"To override, remove secrets.ldb and secrets.tdb"
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% ctx.samname)
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ctx.del_noerror(res[0].dn, recursive=True)
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krbtgt_dn = res[0].get('msDS-KrbTgtLink', idx=0)
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if krbtgt_dn is not None:
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ctx.new_krbtgt_dn = krbtgt_dn
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ctx.del_noerror(ctx.new_krbtgt_dn)
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res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
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expression='(&(sAMAccountName=%s)(servicePrincipalName=%s))' %
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(ldb.binary_encode("dns-%s" % ctx.myname),
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ldb.binary_encode("dns/%s" % ctx.dnshostname)),
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attrs=[])
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if res:
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ctx.del_noerror(res[0].dn, recursive=True)
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res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
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expression='(sAMAccountName=%s)' % ldb.binary_encode("dns-%s" % ctx.myname),
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attrs=[])
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if res:
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raise DCJoinException("Not removing account %s which looks like "
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"a Samba DNS service account but does not "
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"have servicePrincipalName=%s" %
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(ldb.binary_encode("dns-%s" % ctx.myname),
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ldb.binary_encode("dns/%s" % ctx.dnshostname)))
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def cleanup_old_join(ctx, force=False):
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"""Remove any DNs from a previous join."""
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# find the krbtgt link
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if not ctx.subdomain:
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ctx.cleanup_old_accounts(force=force)
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if ctx.connection_dn is not None:
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ctx.del_noerror(ctx.connection_dn)
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if ctx.krbtgt_dn is not None:
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ctx.del_noerror(ctx.krbtgt_dn)
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ctx.del_noerror(ctx.ntds_dn)
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ctx.del_noerror(ctx.server_dn, recursive=True)
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if ctx.topology_dn:
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ctx.del_noerror(ctx.topology_dn)
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if ctx.partition_dn:
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ctx.del_noerror(ctx.partition_dn)
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if ctx.subdomain:
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binding_options = "sign"
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lsaconn = lsa.lsarpc("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
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ctx.lp, ctx.creds)
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objectAttr = lsa.ObjectAttribute()
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objectAttr.sec_qos = lsa.QosInfo()
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pol_handle = lsaconn.OpenPolicy2('',
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objectAttr,
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security.SEC_FLAG_MAXIMUM_ALLOWED)
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name = lsa.String()
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name.string = ctx.realm
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info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
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lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
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name = lsa.String()
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name.string = ctx.forest_domain_name
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info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
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lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
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if ctx.dns_a_dn:
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ctx.del_noerror(ctx.dns_a_dn)
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if ctx.dns_cname_dn:
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ctx.del_noerror(ctx.dns_cname_dn)
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def promote_possible(ctx):
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"""confirm that the account is just a bare NT4 BDC or a member server, so can be safely promoted"""
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if ctx.subdomain:
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# This shouldn't happen
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raise Exception("Can not promote into a subdomain")
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res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
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expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
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attrs=["msDS-krbTgtLink", "userAccountControl", "serverReferenceBL", "rIDSetReferences"])
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if len(res) == 0:
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raise Exception("Could not find domain member account '%s' to promote to a DC, use 'samba-tool domain join' instead'" % ctx.samname)
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if "msDS-KrbTgtLink" in res[0] or "serverReferenceBL" in res[0] or "rIDSetReferences" in res[0]:
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raise Exception("Account '%s' appears to be an active DC, use 'samba-tool domain join' if you must re-create this account" % ctx.samname)
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if (int(res[0]["userAccountControl"][0]) & (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
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samba.dsdb.UF_SERVER_TRUST_ACCOUNT) == 0):
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raise Exception("Account %s is not a domain member or a bare NT4 BDC, use 'samba-tool domain join' instead'" % ctx.samname)
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ctx.promote_from_dn = res[0].dn
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def find_dc(ctx, domain):
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"""find a writeable DC for the given domain"""
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try:
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ctx.cldap_ret = ctx.net.finddc(domain=domain, flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
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except NTSTATUSError as error:
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raise CommandError("Failed to find a writeable DC for domain '%s': %s" %
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(domain, error.args[1]))
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except Exception:
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raise CommandError("Failed to find a writeable DC for domain '%s'" % domain)
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if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
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ctx.site = ctx.cldap_ret.client_site
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return ctx.cldap_ret.pdc_dns_name
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def find_dc_site(ctx, server):
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site = None
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cldap_ret = ctx.net.finddc(address=server,
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flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS)
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if cldap_ret.client_site is not None and cldap_ret.client_site != "":
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site = cldap_ret.client_site
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return site
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def get_behavior_version(ctx):
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res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
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if "msDS-Behavior-Version" in res[0]:
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return int(res[0]["msDS-Behavior-Version"][0])
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else:
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return samba.dsdb.DS_DOMAIN_FUNCTION_2000
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def get_dnsHostName(ctx):
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res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
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return str(res[0]["dnsHostName"][0])
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def get_domain_name(ctx):
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'''get netbios name of the domain from the partitions record'''
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partitions_dn = ctx.samdb.get_partitions_dn()
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res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
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expression='ncName=%s' % ldb.binary_encode(str(ctx.samdb.get_default_basedn())))
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return str(res[0]["nETBIOSName"][0])
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def get_forest_domain_name(ctx):
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'''get netbios name of the domain from the partitions record'''
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partitions_dn = ctx.samdb.get_partitions_dn()
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res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
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expression='ncName=%s' % ldb.binary_encode(str(ctx.samdb.get_root_basedn())))
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return str(res[0]["nETBIOSName"][0])
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def get_parent_partition_dn(ctx):
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'''get the parent domain partition DN from parent DNS name'''
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res = ctx.samdb.search(base=ctx.config_dn, attrs=[],
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expression='(&(objectclass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))' %
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(ldb.binary_encode(ctx.parent_dnsdomain),
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ldb.OID_COMPARATOR_AND, samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN))
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return str(res[0].dn)
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def get_mysid(ctx):
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'''get the SID of the connected user. Only works with w2k8 and later,
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so only used for RODC join'''
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res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
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binsid = res[0]["tokenGroups"][0]
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return get_string(ctx.samdb.schema_format_value("objectSID", binsid))
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def dn_exists(ctx, dn):
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'''check if a DN exists'''
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try:
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res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
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except ldb.LdbError as e5:
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(enum, estr) = e5.args
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if enum == ldb.ERR_NO_SUCH_OBJECT:
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return False
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raise
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return True
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def add_krbtgt_account(ctx):
|
|
'''RODCs need a special krbtgt account'''
|
|
print("Adding %s" % ctx.krbtgt_dn)
|
|
rec = {
|
|
"dn": ctx.krbtgt_dn,
|
|
"objectclass": "user",
|
|
"useraccountcontrol": str(samba.dsdb.UF_NORMAL_ACCOUNT |
|
|
samba.dsdb.UF_ACCOUNTDISABLE),
|
|
"showinadvancedviewonly": "TRUE",
|
|
"description": "krbtgt for %s" % ctx.samname}
|
|
ctx.samdb.add(rec, ["rodc_join:1:1"])
|
|
|
|
# now we need to search for the samAccountName attribute on the krbtgt DN,
|
|
# as this will have been magically set to the krbtgt number
|
|
res = ctx.samdb.search(base=ctx.krbtgt_dn, scope=ldb.SCOPE_BASE, attrs=["samAccountName"])
|
|
ctx.krbtgt_name = res[0]["samAccountName"][0]
|
|
|
|
print("Got krbtgt_name=%s" % ctx.krbtgt_name)
|
|
|
|
m = ldb.Message()
|
|
m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
|
|
m["msDS-krbTgtLink"] = ldb.MessageElement(ctx.krbtgt_dn,
|
|
ldb.FLAG_MOD_REPLACE, "msDS-krbTgtLink")
|
|
ctx.samdb.modify(m)
|
|
|
|
ctx.new_krbtgt_dn = "CN=%s,CN=Users,%s" % (ctx.krbtgt_name, ctx.base_dn)
|
|
print("Renaming %s to %s" % (ctx.krbtgt_dn, ctx.new_krbtgt_dn))
|
|
ctx.samdb.rename(ctx.krbtgt_dn, ctx.new_krbtgt_dn)
|
|
|
|
def drsuapi_connect(ctx):
|
|
'''make a DRSUAPI connection to the naming master'''
|
|
binding_options = "seal"
|
|
if ctx.lp.log_level() >= 9:
|
|
binding_options += ",print"
|
|
binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
|
|
ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds)
|
|
(ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi)
|
|
|
|
def create_tmp_samdb(ctx):
|
|
'''create a temporary samdb object for schema queries'''
|
|
ctx.tmp_schema = Schema(ctx.domsid,
|
|
schemadn=ctx.schema_dn)
|
|
ctx.tmp_samdb = SamDB(session_info=system_session(), url=None, auto_connect=False,
|
|
credentials=ctx.creds, lp=ctx.lp, global_schema=False,
|
|
am_rodc=False)
|
|
ctx.tmp_samdb.set_schema(ctx.tmp_schema)
|
|
|
|
def build_DsReplicaAttribute(ctx, attrname, attrvalue):
|
|
'''build a DsReplicaAttributeCtr object'''
|
|
r = drsuapi.DsReplicaAttribute()
|
|
r.attid = ctx.tmp_samdb.get_attid_from_lDAPDisplayName(attrname)
|
|
r.value_ctr = 1
|
|
|
|
def DsAddEntry(ctx, recs):
|
|
'''add a record via the DRSUAPI DsAddEntry call'''
|
|
if ctx.drsuapi is None:
|
|
ctx.drsuapi_connect()
|
|
if ctx.tmp_samdb is None:
|
|
ctx.create_tmp_samdb()
|
|
|
|
objects = []
|
|
for rec in recs:
|
|
id = drsuapi.DsReplicaObjectIdentifier()
|
|
id.dn = rec['dn']
|
|
|
|
attrs = []
|
|
for a in rec:
|
|
if a == 'dn':
|
|
continue
|
|
if not isinstance(rec[a], list):
|
|
v = [rec[a]]
|
|
else:
|
|
v = rec[a]
|
|
v = [x.encode('utf8') if isinstance(x, str) else x for x in v]
|
|
rattr = ctx.tmp_samdb.dsdb_DsReplicaAttribute(ctx.tmp_samdb, a, v)
|
|
attrs.append(rattr)
|
|
|
|
attribute_ctr = drsuapi.DsReplicaAttributeCtr()
|
|
attribute_ctr.num_attributes = len(attrs)
|
|
attribute_ctr.attributes = attrs
|
|
|
|
object = drsuapi.DsReplicaObject()
|
|
object.identifier = id
|
|
object.attribute_ctr = attribute_ctr
|
|
|
|
list_object = drsuapi.DsReplicaObjectListItem()
|
|
list_object.object = object
|
|
objects.append(list_object)
|
|
|
|
req2 = drsuapi.DsAddEntryRequest2()
|
|
req2.first_object = objects[0]
|
|
prev = req2.first_object
|
|
for o in objects[1:]:
|
|
prev.next_object = o
|
|
prev = o
|
|
|
|
(level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
|
|
if level == 2:
|
|
if ctr.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
|
|
print("DsAddEntry failed with dir_err %u" % ctr.dir_err)
|
|
raise RuntimeError("DsAddEntry failed")
|
|
if ctr.extended_err[0] != werror.WERR_SUCCESS:
|
|
print("DsAddEntry failed with status %s info %s" % (ctr.extended_err))
|
|
raise RuntimeError("DsAddEntry failed")
|
|
if level == 3:
|
|
if ctr.err_ver != 1:
|
|
raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
|
|
if ctr.err_data.status[0] != werror.WERR_SUCCESS:
|
|
if ctr.err_data.info is None:
|
|
print("DsAddEntry failed with status %s, info omitted" % (ctr.err_data.status[1]))
|
|
else:
|
|
print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status[1],
|
|
ctr.err_data.info.extended_err))
|
|
raise RuntimeError("DsAddEntry failed")
|
|
if ctr.err_data.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
|
|
print("DsAddEntry failed with dir_err %u" % ctr.err_data.dir_err)
|
|
raise RuntimeError("DsAddEntry failed")
|
|
|
|
return ctr.objects
|
|
|
|
def join_ntdsdsa_obj(ctx):
|
|
'''return the ntdsdsa object to add'''
|
|
|
|
print("Adding %s" % ctx.ntds_dn)
|
|
|
|
# When joining Windows, the order of certain attributes (mostly only
|
|
# msDS-HasMasterNCs and HasMasterNCs) seems to matter
|
|
rec = OrderedDict([
|
|
("dn", ctx.ntds_dn),
|
|
("objectclass", "nTDSDSA"),
|
|
("systemFlags", str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE)),
|
|
("dMDLocation", ctx.schema_dn)])
|
|
|
|
nc_list = [ctx.base_dn, ctx.config_dn, ctx.schema_dn]
|
|
|
|
if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
|
|
# This allows an override via smb.conf or --option using
|
|
# "ad dc functional level" to make us seem like 2016 to
|
|
# join such a domain for (say) a migration, or to test the
|
|
# partially implemented 2016 support.
|
|
domainControllerFunctionality = functional_level.dc_level_from_lp(ctx.lp)
|
|
rec["msDS-Behavior-Version"] = str(domainControllerFunctionality)
|
|
|
|
if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
|
|
rec["msDS-HasDomainNCs"] = ctx.base_dn
|
|
|
|
if ctx.RODC:
|
|
rec["objectCategory"] = "CN=NTDS-DSA-RO,%s" % ctx.schema_dn
|
|
rec["msDS-HasFullReplicaNCs"] = ctx.full_nc_list
|
|
rec["options"] = "37"
|
|
else:
|
|
rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
|
|
|
|
# Note that Windows seems to have an undocumented requirement that
|
|
# the msDS-HasMasterNCs attribute occurs before HasMasterNCs
|
|
if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
|
|
rec["msDS-HasMasterNCs"] = ctx.full_nc_list
|
|
|
|
rec["HasMasterNCs"] = []
|
|
for nc in nc_list:
|
|
if nc in ctx.full_nc_list:
|
|
rec["HasMasterNCs"].append(nc)
|
|
|
|
rec["options"] = "1"
|
|
rec["invocationId"] = ndr_pack(ctx.invocation_id)
|
|
|
|
return rec
|
|
|
|
def join_add_ntdsdsa(ctx):
|
|
'''add the ntdsdsa object'''
|
|
|
|
rec = ctx.join_ntdsdsa_obj()
|
|
if ctx.forced_local_samdb:
|
|
ctx.samdb.add(rec, controls=["relax:0"])
|
|
elif ctx.RODC:
|
|
ctx.samdb.add(rec, ["rodc_join:1:1"])
|
|
else:
|
|
ctx.DsAddEntry([rec])
|
|
|
|
# find the GUID of our NTDS DN
|
|
res = ctx.samdb.search(base=ctx.ntds_dn, scope=ldb.SCOPE_BASE, attrs=["objectGUID"])
|
|
ctx.ntds_guid = misc.GUID(ctx.samdb.schema_format_value("objectGUID", res[0]["objectGUID"][0]))
|
|
|
|
def join_add_objects(ctx, specified_sid=None):
|
|
'''add the various objects needed for the join'''
|
|
if ctx.acct_dn:
|
|
print("Adding %s" % ctx.acct_dn)
|
|
rec = {
|
|
"dn": ctx.acct_dn,
|
|
"objectClass": "computer",
|
|
"displayname": ctx.samname,
|
|
"samaccountname": ctx.samname,
|
|
"userAccountControl": str(ctx.userAccountControl | samba.dsdb.UF_ACCOUNTDISABLE),
|
|
"dnshostname": ctx.dnshostname}
|
|
if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2008:
|
|
rec['msDS-SupportedEncryptionTypes'] = str(samba.dsdb.ENC_ALL_TYPES)
|
|
elif ctx.promote_existing:
|
|
rec['msDS-SupportedEncryptionTypes'] = []
|
|
if ctx.managedby:
|
|
rec["managedby"] = ctx.managedby
|
|
elif ctx.promote_existing:
|
|
rec["managedby"] = []
|
|
|
|
if ctx.never_reveal_sid:
|
|
rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
|
|
elif ctx.promote_existing:
|
|
rec["msDS-NeverRevealGroup"] = []
|
|
|
|
if ctx.reveal_sid:
|
|
rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
|
|
elif ctx.promote_existing:
|
|
rec["msDS-RevealOnDemandGroup"] = []
|
|
|
|
if specified_sid:
|
|
rec["objectSid"] = ndr_pack(specified_sid)
|
|
|
|
if ctx.promote_existing:
|
|
if ctx.promote_from_dn != ctx.acct_dn:
|
|
ctx.samdb.rename(ctx.promote_from_dn, ctx.acct_dn)
|
|
ctx.samdb.modify(ldb.Message.from_dict(ctx.samdb, rec, ldb.FLAG_MOD_REPLACE))
|
|
else:
|
|
controls = None
|
|
if specified_sid is not None:
|
|
controls = ["relax:0"]
|
|
ctx.samdb.add(rec, controls=controls)
|
|
|
|
if ctx.krbtgt_dn:
|
|
ctx.add_krbtgt_account()
|
|
|
|
if ctx.server_dn:
|
|
print("Adding %s" % ctx.server_dn)
|
|
rec = {
|
|
"dn": ctx.server_dn,
|
|
"objectclass": "server",
|
|
# windows uses 50000000 decimal for systemFlags. A windows hex/decimal mixup bug?
|
|
"systemFlags": str(samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME |
|
|
samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE |
|
|
samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
|
|
# windows seems to add the dnsHostName later
|
|
"dnsHostName": ctx.dnshostname}
|
|
|
|
if ctx.acct_dn:
|
|
rec["serverReference"] = ctx.acct_dn
|
|
|
|
ctx.samdb.add(rec)
|
|
|
|
if ctx.subdomain:
|
|
# the rest is done after replication
|
|
ctx.ntds_guid = None
|
|
return
|
|
|
|
if ctx.ntds_dn:
|
|
ctx.join_add_ntdsdsa()
|
|
|
|
# Add the Replica-Locations or RO-Replica-Locations attributes
|
|
# TODO Is this supposed to be for the schema partition too?
|
|
expr = "(&(objectClass=crossRef)(ncName=%s))" % ldb.binary_encode(ctx.domaindns_zone)
|
|
domain = (ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
|
|
attrs=[],
|
|
base=ctx.samdb.get_partitions_dn(),
|
|
expression=expr), ctx.domaindns_zone)
|
|
|
|
expr = "(&(objectClass=crossRef)(ncName=%s))" % ldb.binary_encode(ctx.forestdns_zone)
|
|
forest = (ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
|
|
attrs=[],
|
|
base=ctx.samdb.get_partitions_dn(),
|
|
expression=expr), ctx.forestdns_zone)
|
|
|
|
for part, zone in (domain, forest):
|
|
if zone not in ctx.nc_list:
|
|
continue
|
|
|
|
if len(part) == 1:
|
|
m = ldb.Message()
|
|
m.dn = part[0].dn
|
|
attr = "msDS-NC-Replica-Locations"
|
|
if ctx.RODC:
|
|
attr = "msDS-NC-RO-Replica-Locations"
|
|
|
|
m[attr] = ldb.MessageElement(ctx.ntds_dn,
|
|
ldb.FLAG_MOD_ADD, attr)
|
|
ctx.samdb.modify(m)
|
|
|
|
if ctx.connection_dn is not None:
|
|
print("Adding %s" % ctx.connection_dn)
|
|
rec = {
|
|
"dn": ctx.connection_dn,
|
|
"objectclass": "nTDSConnection",
|
|
"enabledconnection": "TRUE",
|
|
"options": "65",
|
|
"fromServer": ctx.dc_ntds_dn}
|
|
ctx.samdb.add(rec)
|
|
|
|
if ctx.acct_dn:
|
|
print("Adding SPNs to %s" % ctx.acct_dn)
|
|
m = ldb.Message()
|
|
m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
|
|
for i in range(len(ctx.SPNs)):
|
|
ctx.SPNs[i] = ctx.SPNs[i].replace("$NTDSGUID", str(ctx.ntds_guid))
|
|
m["servicePrincipalName"] = ldb.MessageElement(ctx.SPNs,
|
|
ldb.FLAG_MOD_REPLACE,
|
|
"servicePrincipalName")
|
|
ctx.samdb.modify(m)
|
|
|
|
# The account password set operation should normally be done over
|
|
# LDAP. Windows 2000 DCs however allow this only with SSL
|
|
# connections which are hard to set up and otherwise refuse with
|
|
# ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
|
|
# over SAMR.
|
|
print("Setting account password for %s" % ctx.samname)
|
|
try:
|
|
ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))"
|
|
% ldb.binary_encode(ctx.samname),
|
|
ctx.acct_pass,
|
|
force_change_at_next_login=False,
|
|
username=ctx.samname)
|
|
except ldb.LdbError as e2:
|
|
(num, _) = e2.args
|
|
if num != ldb.ERR_UNWILLING_TO_PERFORM:
|
|
raise
|
|
ctx.net.set_password(account_name=ctx.samname,
|
|
domain_name=ctx.domain_name,
|
|
newpassword=ctx.acct_pass)
|
|
|
|
res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE,
|
|
attrs=["msDS-KeyVersionNumber",
|
|
"objectSID"])
|
|
if "msDS-KeyVersionNumber" in res[0]:
|
|
ctx.key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
|
|
else:
|
|
ctx.key_version_number = None
|
|
|
|
ctx.new_dc_account_sid = ndr_unpack(security.dom_sid,
|
|
res[0]["objectSid"][0])
|
|
|
|
print("Enabling account")
|
|
m = ldb.Message()
|
|
m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
|
|
m["userAccountControl"] = ldb.MessageElement(str(ctx.userAccountControl),
|
|
ldb.FLAG_MOD_REPLACE,
|
|
"userAccountControl")
|
|
ctx.samdb.modify(m)
|
|
|
|
if ctx.dns_backend.startswith("BIND9_"):
|
|
ctx.dnspass = samba.generate_random_password(128, 255)
|
|
|
|
recs = ctx.samdb.parse_ldif(read_and_sub_file(setup_path("provision_dns_add_samba.ldif"),
|
|
{"DNSDOMAIN": ctx.dnsdomain,
|
|
"DOMAINDN": ctx.base_dn,
|
|
"HOSTNAME": ctx.myname,
|
|
"DNSPASS_B64": b64encode(ctx.dnspass.encode('utf-16-le')).decode('utf8'),
|
|
"DNSNAME": ctx.dnshostname}))
|
|
for changetype, msg in recs:
|
|
assert changetype == ldb.CHANGETYPE_NONE
|
|
dns_acct_dn = msg["dn"]
|
|
print("Adding DNS account %s with dns/ SPN" % msg["dn"])
|
|
|
|
# Remove dns password (we will set it as a modify, as we can't do clearTextPassword over LDAP)
|
|
del msg["clearTextPassword"]
|
|
# Remove isCriticalSystemObject for similar reasons, it cannot be set over LDAP
|
|
del msg["isCriticalSystemObject"]
|
|
# Disable account until password is set
|
|
msg["userAccountControl"] = str(samba.dsdb.UF_NORMAL_ACCOUNT |
|
|
samba.dsdb.UF_ACCOUNTDISABLE)
|
|
try:
|
|
ctx.samdb.add(msg)
|
|
except ldb.LdbError as e:
|
|
(num, _) = e.args
|
|
if num != ldb.ERR_ENTRY_ALREADY_EXISTS:
|
|
raise
|
|
|
|
# The account password set operation should normally be done over
|
|
# LDAP. Windows 2000 DCs however allow this only with SSL
|
|
# connections which are hard to set up and otherwise refuse with
|
|
# ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
|
|
# over SAMR.
|
|
print("Setting account password for dns-%s" % ctx.myname)
|
|
try:
|
|
ctx.samdb.setpassword("(&(objectClass=user)(samAccountName=dns-%s))"
|
|
% ldb.binary_encode(ctx.myname),
|
|
ctx.dnspass,
|
|
force_change_at_next_login=False,
|
|
username=ctx.samname)
|
|
except ldb.LdbError as e3:
|
|
(num, _) = e3.args
|
|
if num != ldb.ERR_UNWILLING_TO_PERFORM:
|
|
raise
|
|
ctx.net.set_password(account_name="dns-%s" % ctx.myname,
|
|
domain_name=ctx.domain_name,
|
|
newpassword=ctx.dnspass)
|
|
|
|
res = ctx.samdb.search(base=dns_acct_dn, scope=ldb.SCOPE_BASE,
|
|
attrs=["msDS-KeyVersionNumber"])
|
|
if "msDS-KeyVersionNumber" in res[0]:
|
|
ctx.dns_key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
|
|
else:
|
|
ctx.dns_key_version_number = None
|
|
|
|
def join_add_objects2(ctx):
|
|
"""add the various objects needed for the join, for subdomains post replication"""
|
|
|
|
print("Adding %s" % ctx.partition_dn)
|
|
name_map = {'SubdomainAdmins': "%s-%s" % (str(ctx.domsid), security.DOMAIN_RID_ADMINS)}
|
|
sd_binary = descriptor.get_paritions_crossref_subdomain_descriptor(ctx.forestsid, name_map=name_map)
|
|
rec = {
|
|
"dn": ctx.partition_dn,
|
|
"objectclass": "crossRef",
|
|
"objectCategory": "CN=Cross-Ref,%s" % ctx.schema_dn,
|
|
"nCName": ctx.base_dn,
|
|
"nETBIOSName": ctx.domain_name,
|
|
"dnsRoot": ctx.dnsdomain,
|
|
"trustParent": ctx.parent_partition_dn,
|
|
"systemFlags": str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC |samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN),
|
|
"ntSecurityDescriptor": sd_binary,
|
|
}
|
|
|
|
if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
|
|
rec["msDS-Behavior-Version"] = str(ctx.behavior_version)
|
|
|
|
rec2 = ctx.join_ntdsdsa_obj()
|
|
|
|
objects = ctx.DsAddEntry([rec, rec2])
|
|
if len(objects) != 2:
|
|
raise DCJoinException("Expected 2 objects from DsAddEntry")
|
|
|
|
ctx.ntds_guid = objects[1].guid
|
|
|
|
print("Replicating partition DN")
|
|
ctx.repl.replicate(ctx.partition_dn,
|
|
misc.GUID("00000000-0000-0000-0000-000000000000"),
|
|
ctx.ntds_guid,
|
|
exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
|
|
replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
|
|
|
|
print("Replicating NTDS DN")
|
|
ctx.repl.replicate(ctx.ntds_dn,
|
|
misc.GUID("00000000-0000-0000-0000-000000000000"),
|
|
ctx.ntds_guid,
|
|
exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
|
|
replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)
|
|
|
|
def join_provision(ctx):
|
|
"""Provision the local SAM."""
|
|
|
|
print("Calling bare provision")
|
|
|
|
smbconf = ctx.lp.configfile
|
|
|
|
presult = provision(ctx.logger, system_session(), smbconf=smbconf,
|
|
targetdir=ctx.targetdir, samdb_fill=FILL_DRS, realm=ctx.realm,
|
|
rootdn=ctx.root_dn, domaindn=ctx.base_dn,
|
|
schemadn=ctx.schema_dn, configdn=ctx.config_dn,
|
|
serverdn=ctx.server_dn, domain=ctx.domain_name,
|
|
hostname=ctx.myname, domainsid=ctx.domsid,
|
|
machinepass=ctx.acct_pass, serverrole="active directory domain controller",
|
|
sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
|
|
use_ntvfs=ctx.use_ntvfs, dns_backend=ctx.dns_backend,
|
|
plaintext_secrets=ctx.plaintext_secrets,
|
|
backend_store=ctx.backend_store,
|
|
backend_store_size=ctx.backend_store_size,
|
|
batch_mode=True)
|
|
print("Provision OK for domain DN %s" % presult.domaindn)
|
|
ctx.local_samdb = presult.samdb
|
|
ctx.lp = presult.lp
|
|
ctx.paths = presult.paths
|
|
ctx.names = presult.names
|
|
|
|
# Fix up the forestsid, it may be different if we are joining as a subdomain
|
|
ctx.names.forestsid = ctx.forestsid
|
|
|
|
def join_provision_own_domain(ctx):
|
|
"""Provision the local SAM."""
|
|
|
|
# we now operate exclusively on the local database, which
|
|
# we need to reopen in order to get the newly created schema
|
|
# we set the transaction_index_cache_size to 200,000 to ensure it is
|
|
# not too small, if it's too small the performance of the join will
|
|
# be negatively impacted.
|
|
print("Reconnecting to local samdb")
|
|
ctx.samdb = SamDB(url=ctx.local_samdb.url,
|
|
options=[
|
|
"transaction_index_cache_size:200000"],
|
|
session_info=system_session(),
|
|
lp=ctx.local_samdb.lp,
|
|
global_schema=False)
|
|
ctx.samdb.set_invocation_id(str(ctx.invocation_id))
|
|
ctx.local_samdb = ctx.samdb
|
|
|
|
ctx.logger.info("Finding domain GUID from ncName")
|
|
res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
|
|
controls=["extended_dn:1:1", "reveal_internals:0"])
|
|
|
|
if 'nCName' not in res[0]:
|
|
raise DCJoinException("Can't find naming context on partition DN %s in %s" % (ctx.partition_dn, ctx.samdb.url))
|
|
|
|
try:
|
|
ctx.names.domainguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0].decode('utf8')).get_extended_component('GUID')))
|
|
except KeyError:
|
|
raise DCJoinException("Can't find GUID in naming master on partition DN %s" % res[0]['ncName'][0])
|
|
|
|
ctx.logger.info("Got domain GUID %s" % ctx.names.domainguid)
|
|
|
|
ctx.logger.info("Calling own domain provision")
|
|
|
|
secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
|
|
|
|
provision_fill(ctx.local_samdb, secrets_ldb,
|
|
ctx.logger, ctx.names, ctx.paths,
|
|
dom_for_fun_level=ctx.behavior_version,
|
|
targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
|
|
machinepass=ctx.acct_pass, serverrole="active directory domain controller",
|
|
lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
|
|
dns_backend=ctx.dns_backend, adminpass=ctx.adminpass)
|
|
|
|
if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2012:
|
|
adprep_level = ctx.behavior_version
|
|
|
|
updates_allowed_overridden = False
|
|
if lp.get("dsdb:schema update allowed") is None:
|
|
lp.set("dsdb:schema update allowed", "yes")
|
|
print("Temporarily overriding 'dsdb:schema update allowed' setting")
|
|
updates_allowed_overridden = True
|
|
|
|
samdb.transaction_start()
|
|
try:
|
|
from samba.domain_update import DomainUpdate
|
|
|
|
domain = DomainUpdate(ctx.local_samdb, fix=True)
|
|
domain.check_updates_functional_level(adprep_level,
|
|
samba.dsdb.DS_DOMAIN_FUNCTION_2008,
|
|
update_revision=True)
|
|
|
|
samdb.transaction_commit()
|
|
except Exception as e:
|
|
samdb.transaction_cancel()
|
|
raise DCJoinException("DomainUpdate() failed: %s" % e)
|
|
|
|
if updates_allowed_overridden:
|
|
lp.set("dsdb:schema update allowed", "no")
|
|
|
|
print("Provision OK for domain %s" % ctx.names.dnsdomain)
|
|
|
|
def create_replicator(ctx, repl_creds, binding_options):
|
|
'''Creates a new DRS object for managing replications'''
|
|
return drs_utils.drs_Replicate(
|
|
"ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
|
|
ctx.lp, repl_creds, ctx.local_samdb, ctx.invocation_id)
|
|
|
|
def join_replicate(ctx):
|
|
"""Replicate the SAM."""
|
|
|
|
ctx.logger.info("Starting replication")
|
|
|
|
# A global transaction is started so that linked attributes
|
|
# are applied at the very end, once all partitions are
|
|
# replicated. This helps get all cross-partition links.
|
|
ctx.local_samdb.transaction_start()
|
|
try:
|
|
source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
|
|
if ctx.ntds_guid is None:
|
|
print("Using DS_BIND_GUID_W2K3")
|
|
destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
|
|
else:
|
|
destination_dsa_guid = ctx.ntds_guid
|
|
|
|
if ctx.RODC:
|
|
repl_creds = Credentials()
|
|
repl_creds.guess(ctx.lp)
|
|
repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
|
|
repl_creds.set_username(ctx.samname)
|
|
repl_creds.set_password(ctx.acct_pass)
|
|
else:
|
|
repl_creds = ctx.creds
|
|
|
|
binding_options = "seal"
|
|
if ctx.lp.log_level() >= 9:
|
|
binding_options += ",print"
|
|
|
|
repl = ctx.create_replicator(repl_creds, binding_options)
|
|
|
|
repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid, schema=True, rodc=ctx.RODC,
|
|
replica_flags=ctx.replica_flags)
|
|
repl.replicate(ctx.config_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid, rodc=ctx.RODC,
|
|
replica_flags=ctx.replica_flags)
|
|
if not ctx.subdomain:
|
|
# Replicate first the critical objects for the basedn
|
|
|
|
# We do this to match Windows. The default case is to
|
|
# do a critical objects replication, then a second
|
|
# with all objects.
|
|
|
|
print("Replicating critical objects from the base DN of the domain")
|
|
try:
|
|
repl.replicate(ctx.base_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid, rodc=ctx.RODC,
|
|
replica_flags=ctx.domain_replica_flags | drsuapi.DRSUAPI_DRS_CRITICAL_ONLY)
|
|
except WERRORError as e:
|
|
|
|
if e.args[0] == werror.WERR_DS_DRA_MISSING_PARENT:
|
|
ctx.logger.warning("First pass of replication with "
|
|
"DRSUAPI_DRS_CRITICAL_ONLY "
|
|
"not possible due to a missing parent object. "
|
|
"This is typical of a Samba "
|
|
"4.5 or earlier server. "
|
|
"We will replicate all the objects instead.")
|
|
else:
|
|
raise
|
|
|
|
# Now replicate all the objects in the domain (unless
|
|
# we were run with --critical-only).
|
|
#
|
|
# Doing the replication of users as a second pass
|
|
# matches more closely the Windows behaviour, which is
|
|
# actually to do this on first startup.
|
|
#
|
|
# Use --critical-only if you want that (but you don't
|
|
# really, it is better to see any errors here).
|
|
if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
|
|
try:
|
|
repl.replicate(ctx.base_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid, rodc=ctx.RODC,
|
|
replica_flags=ctx.domain_replica_flags)
|
|
except WERRORError as e:
|
|
|
|
if e.args[0] == werror.WERR_DS_DRA_MISSING_PARENT and \
|
|
ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
|
|
ctx.logger.warning("Replication with DRSUAPI_DRS_CRITICAL_ONLY "
|
|
"failed due to a missing parent object. "
|
|
"This may be a Samba 4.5 or earlier server "
|
|
"and is not compatible with --critical-only")
|
|
raise
|
|
|
|
print("Done with always replicated NC (base, config, schema)")
|
|
|
|
# At this point we should already have an entry in the ForestDNS
|
|
# and DomainDNS NC (those under CN=Partions,DC=...) in order to
|
|
# indicate that we hold a replica for this NC.
|
|
for nc in (ctx.domaindns_zone, ctx.forestdns_zone):
|
|
if nc in ctx.nc_list:
|
|
print("Replicating %s" % (str(nc)))
|
|
repl.replicate(nc, source_dsa_invocation_id,
|
|
destination_dsa_guid, rodc=ctx.RODC,
|
|
replica_flags=ctx.replica_flags)
|
|
|
|
if ctx.RODC:
|
|
repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid,
|
|
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
|
|
repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid,
|
|
exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
|
|
elif ctx.rid_manager_dn is not None:
|
|
# Try and get a RID Set if we can. This is only possible against the RID Master. Warn otherwise.
|
|
try:
|
|
repl.replicate(ctx.rid_manager_dn, source_dsa_invocation_id,
|
|
destination_dsa_guid,
|
|
exop=drsuapi.DRSUAPI_EXOP_FSMO_RID_ALLOC)
|
|
except samba.DsExtendedError as e1:
|
|
(enum, estr) = e1.args
|
|
if enum == drsuapi.DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER:
|
|
print("WARNING: Unable to replicate own RID Set, as server %s (the server we joined) is not the RID Master." % ctx.server)
|
|
print("NOTE: This is normal and expected, Samba will be able to create users after it contacts the RID Master at first startup.")
|
|
else:
|
|
raise
|
|
|
|
ctx.repl = repl
|
|
ctx.source_dsa_invocation_id = source_dsa_invocation_id
|
|
ctx.destination_dsa_guid = destination_dsa_guid
|
|
|
|
ctx.logger.info("Committing SAM database - this may take some time")
|
|
except:
|
|
ctx.local_samdb.transaction_cancel()
|
|
raise
|
|
else:
|
|
|
|
# This is a special case, we have completed a full
|
|
# replication so if a link comes to us that points to a
|
|
# deleted object, and we asked for all objects already, we
|
|
# just have to ignore it, the chance to re-try the
|
|
# replication with GET_TGT has long gone. This can happen
|
|
# if the object is deleted and sent to us after the link
|
|
# was sent, as we are processing all links in the
|
|
# transaction_commit().
|
|
if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
|
|
ctx.local_samdb.set_opaque_integer(dsdb.DSDB_FULL_JOIN_REPLICATION_COMPLETED_OPAQUE_NAME,
|
|
1)
|
|
ctx.local_samdb.transaction_commit()
|
|
ctx.local_samdb.set_opaque_integer(dsdb.DSDB_FULL_JOIN_REPLICATION_COMPLETED_OPAQUE_NAME,
|
|
0)
|
|
ctx.logger.info("Committed SAM database")
|
|
|
|
# A large replication may have caused our LDB connection to the
|
|
# remote DC to timeout, so check the connection is still alive
|
|
ctx.refresh_ldb_connection()
|
|
|
|
def refresh_ldb_connection(ctx):
|
|
try:
|
|
# query the rootDSE to check the connection
|
|
ctx.samdb.search(scope=ldb.SCOPE_BASE, attrs=[])
|
|
except ldb.LdbError as e:
|
|
(enum, estr) = e.args
|
|
|
|
# if the connection was disconnected, then reconnect
|
|
if (enum == ldb.ERR_OPERATIONS_ERROR and
|
|
('NT_STATUS_CONNECTION_DISCONNECTED' in estr or
|
|
'NT_STATUS_CONNECTION_RESET' in estr)):
|
|
ctx.logger.warning("LDB connection disconnected. Reconnecting")
|
|
ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
|
|
session_info=system_session(),
|
|
credentials=ctx.creds, lp=ctx.lp)
|
|
else:
|
|
raise DCJoinException(estr)
|
|
|
|
def send_DsReplicaUpdateRefs(ctx, dn):
|
|
r = drsuapi.DsReplicaUpdateRefsRequest1()
|
|
r.naming_context = drsuapi.DsReplicaObjectIdentifier()
|
|
r.naming_context.dn = str(dn)
|
|
r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
|
|
r.naming_context.sid = security.dom_sid("S-0-0")
|
|
r.dest_dsa_guid = ctx.ntds_guid
|
|
r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
|
|
r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
|
|
if not ctx.RODC:
|
|
r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP
|
|
|
|
if ctx.drsuapi is None:
|
|
ctx.drsuapi_connect()
|
|
|
|
ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)
|
|
|
|
def join_add_dns_records(ctx):
|
|
"""Remotely Add a DNS record to the target DC. We assume that if we
|
|
replicate DNS that the server holds the DNS roles and can accept
|
|
updates.
|
|
|
|
This avoids issues getting replication going after the DC
|
|
first starts as the rest of the domain does not have to
|
|
wait for samba_dnsupdate to run successfully.
|
|
|
|
Specifically, we add the records implied by the DsReplicaUpdateRefs
|
|
call above.
|
|
|
|
We do not just run samba_dnsupdate as we want to strictly
|
|
operate against the DC we just joined:
|
|
- We do not want to query another DNS server
|
|
- We do not want to obtain a Kerberos ticket
|
|
(as the KDC we select may not be the DC we just joined,
|
|
and so may not be in sync with the password we just set)
|
|
- We do not wish to set the _ldap records until we have started
|
|
- We do not wish to use NTLM (the --use-samba-tool mode forces
|
|
NTLM)
|
|
|
|
"""
|
|
|
|
client_version = dnsserver.DNS_CLIENT_VERSION_LONGHORN
|
|
select_flags = dnsserver.DNS_RPC_VIEW_AUTHORITY_DATA |\
|
|
dnsserver.DNS_RPC_VIEW_NO_CHILDREN
|
|
|
|
zone = ctx.dnsdomain
|
|
msdcs_zone = "_msdcs.%s" % ctx.dnsforest
|
|
name = ctx.myname
|
|
msdcs_cname = str(ctx.ntds_guid)
|
|
cname_target = "%s.%s" % (name, zone)
|
|
IPs = samba.interface_ips(ctx.lp, ctx.force_all_ips)
|
|
|
|
ctx.logger.info("Adding %d remote DNS records for %s.%s" %
|
|
(len(IPs), name, zone))
|
|
|
|
binding_options = "sign"
|
|
dns_conn = dnsserver.dnsserver("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
|
|
ctx.lp, ctx.creds)
|
|
|
|
name_found = True
|
|
|
|
sd_helper = sd_utils.SDUtils(ctx.samdb)
|
|
|
|
change_owner_sd = security.descriptor()
|
|
change_owner_sd.owner_sid = ctx.new_dc_account_sid
|
|
change_owner_sd.group_sid = security.dom_sid("%s-%d" %
|
|
(str(ctx.domsid),
|
|
security.DOMAIN_RID_DCS))
|
|
|
|
# TODO: Remove any old records from the primary DNS name
|
|
try:
|
|
(buflen, res) \
|
|
= dns_conn.DnssrvEnumRecords2(client_version,
|
|
0,
|
|
ctx.server,
|
|
zone,
|
|
name,
|
|
None,
|
|
dnsp.DNS_TYPE_ALL,
|
|
select_flags,
|
|
None,
|
|
None)
|
|
except WERRORError as e:
|
|
if e.args[0] == werror.WERR_DNS_ERROR_NAME_DOES_NOT_EXIST:
|
|
name_found = False
|
|
|
|
if name_found:
|
|
for rec in res.rec:
|
|
for record in rec.records:
|
|
if record.wType == dnsp.DNS_TYPE_A or \
|
|
record.wType == dnsp.DNS_TYPE_AAAA:
|
|
# delete record
|
|
del_rec_buf = dnsserver.DNS_RPC_RECORD_BUF()
|
|
del_rec_buf.rec = record
|
|
try:
|
|
dns_conn.DnssrvUpdateRecord2(client_version,
|
|
0,
|
|
ctx.server,
|
|
zone,
|
|
name,
|
|
None,
|
|
del_rec_buf)
|
|
except WERRORError as e:
|
|
if e.args[0] == werror.WERR_DNS_ERROR_NAME_DOES_NOT_EXIST:
|
|
pass
|
|
else:
|
|
raise
|
|
|
|
for IP in IPs:
|
|
if IP.find(':') != -1:
|
|
ctx.logger.info("Adding DNS AAAA record %s.%s for IPv6 IP: %s"
|
|
% (name, zone, IP))
|
|
rec = AAAARecord(IP)
|
|
else:
|
|
ctx.logger.info("Adding DNS A record %s.%s for IPv4 IP: %s"
|
|
% (name, zone, IP))
|
|
rec = ARecord(IP)
|
|
|
|
# Add record
|
|
add_rec_buf = dnsserver.DNS_RPC_RECORD_BUF()
|
|
add_rec_buf.rec = rec
|
|
dns_conn.DnssrvUpdateRecord2(client_version,
|
|
0,
|
|
ctx.server,
|
|
zone,
|
|
name,
|
|
add_rec_buf,
|
|
None)
|
|
|
|
if (len(IPs) > 0):
|
|
domaindns_zone_dn = ldb.Dn(ctx.samdb, ctx.domaindns_zone)
|
|
(ctx.dns_a_dn, ldap_record) \
|
|
= ctx.samdb.dns_lookup("%s.%s" % (name, zone),
|
|
dns_partition=domaindns_zone_dn)
|
|
|
|
# Make the DC own the DNS record, not the administrator
|
|
sd_helper.modify_sd_on_dn(ctx.dns_a_dn, change_owner_sd,
|
|
controls=["sd_flags:1:%d"
|
|
% (security.SECINFO_OWNER
|
|
| security.SECINFO_GROUP)])
|
|
|
|
# Add record
|
|
ctx.logger.info("Adding DNS CNAME record %s.%s for %s"
|
|
% (msdcs_cname, msdcs_zone, cname_target))
|
|
|
|
add_rec_buf = dnsserver.DNS_RPC_RECORD_BUF()
|
|
rec = CNAMERecord(cname_target)
|
|
add_rec_buf.rec = rec
|
|
dns_conn.DnssrvUpdateRecord2(client_version,
|
|
0,
|
|
ctx.server,
|
|
msdcs_zone,
|
|
msdcs_cname,
|
|
add_rec_buf,
|
|
None)
|
|
|
|
forestdns_zone_dn = ldb.Dn(ctx.samdb, ctx.forestdns_zone)
|
|
(ctx.dns_cname_dn, ldap_record) \
|
|
= ctx.samdb.dns_lookup("%s.%s" % (msdcs_cname, msdcs_zone),
|
|
dns_partition=forestdns_zone_dn)
|
|
|
|
# Make the DC own the DNS record, not the administrator
|
|
sd_helper.modify_sd_on_dn(ctx.dns_cname_dn, change_owner_sd,
|
|
controls=["sd_flags:1:%d"
|
|
% (security.SECINFO_OWNER
|
|
| security.SECINFO_GROUP)])
|
|
|
|
ctx.logger.info("All other DNS records (like _ldap SRV records) " +
|
|
"will be created samba_dnsupdate on first startup")
|
|
|
|
def join_replicate_new_dns_records(ctx):
|
|
for nc in (ctx.domaindns_zone, ctx.forestdns_zone):
|
|
if nc in ctx.nc_list:
|
|
ctx.logger.info("Replicating new DNS records in %s" % (str(nc)))
|
|
ctx.repl.replicate(nc, ctx.source_dsa_invocation_id,
|
|
ctx.ntds_guid, rodc=ctx.RODC,
|
|
replica_flags=ctx.replica_flags,
|
|
full_sync=False)
|
|
|
|
def join_finalise(ctx):
|
|
"""Finalise the join, mark us synchronised and setup secrets db."""
|
|
|
|
# FIXME we shouldn't do this in all cases
|
|
|
|
# If for some reasons we joined in another site than the one of
|
|
# DC we just replicated from then we don't need to send the updatereplicateref
|
|
# as replication between sites is time based and on the initiative of the
|
|
# requesting DC
|
|
ctx.logger.info("Sending DsReplicaUpdateRefs for all the replicated partitions")
|
|
for nc in ctx.nc_list:
|
|
ctx.send_DsReplicaUpdateRefs(nc)
|
|
|
|
if ctx.RODC:
|
|
print("Setting RODC invocationId")
|
|
ctx.local_samdb.set_invocation_id(str(ctx.invocation_id))
|
|
ctx.local_samdb.set_opaque_integer("domainFunctionality",
|
|
ctx.behavior_version)
|
|
m = ldb.Message()
|
|
m.dn = ldb.Dn(ctx.local_samdb, "%s" % ctx.ntds_dn)
|
|
m["invocationId"] = ldb.MessageElement(ndr_pack(ctx.invocation_id),
|
|
ldb.FLAG_MOD_REPLACE,
|
|
"invocationId")
|
|
ctx.local_samdb.modify(m)
|
|
|
|
# Note: as RODC the invocationId is only stored
|
|
# on the RODC itself, the other DCs never see it.
|
|
#
|
|
# Thats is why we fix up the replPropertyMetaData stamp
|
|
# for the 'invocationId' attribute, we need to change
|
|
# the 'version' to '0', this is what windows 2008r2 does as RODC
|
|
#
|
|
# This means if the object on a RWDC ever gets a invocationId
|
|
# attribute, it will have version '1' (or higher), which will
|
|
# will overwrite the RODC local value.
|
|
ctx.local_samdb.set_attribute_replmetadata_version(m.dn,
|
|
"invocationId",
|
|
0)
|
|
|
|
ctx.logger.info("Setting isSynchronized and dsServiceName")
|
|
m = ldb.Message()
|
|
m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
|
|
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
|
|
|
|
guid = ctx.ntds_guid
|
|
m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(guid),
|
|
ldb.FLAG_MOD_REPLACE, "dsServiceName")
|
|
ctx.local_samdb.modify(m)
|
|
|
|
if ctx.subdomain:
|
|
return
|
|
|
|
secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
|
|
|
|
ctx.logger.info("Setting up secrets database")
|
|
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,
|
|
secure_channel_type=ctx.secure_channel_type,
|
|
key_version_number=ctx.key_version_number)
|
|
|
|
if ctx.dns_backend.startswith("BIND9_"):
|
|
setup_bind9_dns(ctx.local_samdb, secrets_ldb,
|
|
ctx.names, ctx.paths, ctx.lp, ctx.logger,
|
|
dns_backend=ctx.dns_backend,
|
|
dnspass=ctx.dnspass, os_level=ctx.behavior_version,
|
|
targetdir=ctx.targetdir,
|
|
key_version_number=ctx.dns_key_version_number)
|
|
|
|
def join_setup_trusts(ctx):
|
|
"""provision the local SAM."""
|
|
|
|
print("Setup domain trusts with server %s" % ctx.server)
|
|
binding_options = "" # why doesn't signing work here? w2k8r2 claims no session key
|
|
lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
|
|
ctx.lp, ctx.creds)
|
|
|
|
objectAttr = lsa.ObjectAttribute()
|
|
objectAttr.sec_qos = lsa.QosInfo()
|
|
|
|
pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
|
|
objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)
|
|
|
|
info = lsa.TrustDomainInfoInfoEx()
|
|
info.domain_name.string = ctx.dnsdomain
|
|
info.netbios_name.string = ctx.domain_name
|
|
info.sid = ctx.domsid
|
|
info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
|
|
info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
|
|
info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
|
|
|
|
try:
|
|
oldname = lsa.String()
|
|
oldname.string = ctx.dnsdomain
|
|
oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
|
|
lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
|
|
print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
|
|
lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
|
|
except RuntimeError:
|
|
pass
|
|
|
|
password_blob = string_to_byte_array(ctx.trustdom_pass.encode('utf-16-le'))
|
|
|
|
clear_value = drsblobs.AuthInfoClear()
|
|
clear_value.size = len(password_blob)
|
|
clear_value.password = password_blob
|
|
|
|
clear_authentication_information = drsblobs.AuthenticationInformation()
|
|
clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
|
|
clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
|
|
clear_authentication_information.AuthInfo = clear_value
|
|
|
|
authentication_information_array = drsblobs.AuthenticationInformationArray()
|
|
authentication_information_array.count = 1
|
|
authentication_information_array.array = [clear_authentication_information]
|
|
|
|
outgoing = drsblobs.trustAuthInOutBlob()
|
|
outgoing.count = 1
|
|
outgoing.current = authentication_information_array
|
|
|
|
trustpass = drsblobs.trustDomainPasswords()
|
|
confounder = [3] * 512
|
|
|
|
for i in range(512):
|
|
confounder[i] = random.randint(0, 255)
|
|
|
|
trustpass.confounder = confounder
|
|
|
|
trustpass.outgoing = outgoing
|
|
trustpass.incoming = outgoing
|
|
|
|
trustpass_blob = ndr_pack(trustpass)
|
|
|
|
encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)
|
|
|
|
auth_blob = lsa.DATA_BUF2()
|
|
auth_blob.size = len(encrypted_trustpass)
|
|
auth_blob.data = string_to_byte_array(encrypted_trustpass)
|
|
|
|
auth_info = lsa.TrustDomainInfoAuthInfoInternal()
|
|
auth_info.auth_blob = auth_blob
|
|
|
|
trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
|
|
info,
|
|
auth_info,
|
|
security.SEC_STD_DELETE)
|
|
|
|
rec = {
|
|
"dn": "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
|
|
"objectclass": "trustedDomain",
|
|
"trustType": str(info.trust_type),
|
|
"trustAttributes": str(info.trust_attributes),
|
|
"trustDirection": str(info.trust_direction),
|
|
"flatname": ctx.forest_domain_name,
|
|
"trustPartner": ctx.dnsforest,
|
|
"trustAuthIncoming": ndr_pack(outgoing),
|
|
"trustAuthOutgoing": ndr_pack(outgoing),
|
|
"securityIdentifier": ndr_pack(ctx.forestsid)
|
|
}
|
|
ctx.local_samdb.add(rec)
|
|
|
|
rec = {
|
|
"dn": "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
|
|
"objectclass": "user",
|
|
"userAccountControl": str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
|
|
"clearTextPassword": ctx.trustdom_pass.encode('utf-16-le'),
|
|
"samAccountName": "%s$" % ctx.forest_domain_name
|
|
}
|
|
ctx.local_samdb.add(rec)
|
|
|
|
def build_nc_lists(ctx):
|
|
# nc_list is the list of naming context (NC) for which we will
|
|
# replicate in and send a updateRef command to the partner DC
|
|
|
|
# full_nc_list is the list of naming context (NC) we hold
|
|
# read/write copies of. These are not subsets of each other.
|
|
ctx.nc_list = [ctx.config_dn, ctx.schema_dn]
|
|
ctx.full_nc_list = [ctx.base_dn, ctx.config_dn, ctx.schema_dn]
|
|
|
|
if ctx.subdomain and ctx.dns_backend != "NONE":
|
|
ctx.full_nc_list += [ctx.domaindns_zone]
|
|
|
|
elif not ctx.subdomain:
|
|
ctx.nc_list += [ctx.base_dn]
|
|
|
|
if ctx.dns_backend != "NONE":
|
|
ctx.nc_list += [ctx.domaindns_zone]
|
|
ctx.nc_list += [ctx.forestdns_zone]
|
|
ctx.full_nc_list += [ctx.domaindns_zone]
|
|
ctx.full_nc_list += [ctx.forestdns_zone]
|
|
|
|
def do_join(ctx):
|
|
ctx.build_nc_lists()
|
|
|
|
if ctx.promote_existing:
|
|
ctx.promote_possible()
|
|
else:
|
|
ctx.cleanup_old_join()
|
|
|
|
try:
|
|
ctx.join_add_objects()
|
|
ctx.join_provision()
|
|
ctx.join_replicate()
|
|
if ctx.subdomain:
|
|
ctx.join_add_objects2()
|
|
ctx.join_provision_own_domain()
|
|
ctx.join_setup_trusts()
|
|
|
|
if ctx.dns_backend != "NONE":
|
|
ctx.join_add_dns_records()
|
|
ctx.join_replicate_new_dns_records()
|
|
|
|
ctx.join_finalise()
|
|
except:
|
|
try:
|
|
print("Join failed - cleaning up")
|
|
except IOError:
|
|
pass
|
|
|
|
# cleanup the failed join (checking we still have a live LDB
|
|
# connection to the remote DC first)
|
|
ctx.refresh_ldb_connection()
|
|
ctx.cleanup_old_join()
|
|
raise
|
|
|
|
|
|
def join_RODC(logger=None, server=None, creds=None, lp=None, site=None, netbios_name=None,
|
|
targetdir=None, domain=None, domain_critical_only=False,
|
|
machinepass=None, use_ntvfs=False, dns_backend=None,
|
|
promote_existing=False, plaintext_secrets=False,
|
|
backend_store=None,
|
|
backend_store_size=None):
|
|
"""Join as a RODC."""
|
|
|
|
ctx = DCJoinContext(logger, server, creds, lp, site, netbios_name,
|
|
targetdir, domain, machinepass, use_ntvfs, dns_backend,
|
|
promote_existing, plaintext_secrets,
|
|
backend_store=backend_store,
|
|
backend_store_size=backend_store_size)
|
|
|
|
lp.set("workgroup", ctx.domain_name)
|
|
logger.info("workgroup is %s" % ctx.domain_name)
|
|
|
|
lp.set("realm", ctx.realm)
|
|
logger.info("realm is %s" % ctx.realm)
|
|
|
|
ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)
|
|
|
|
# setup some defaults for accounts that should be replicated to this RODC
|
|
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.SPNs.extend(["RestrictedKrbHost/%s" % ctx.myname,
|
|
"RestrictedKrbHost/%s" % ctx.dnshostname])
|
|
|
|
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_SPECIAL_SECRET_PROCESSING |
|
|
drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
|
|
ctx.domain_replica_flags = ctx.replica_flags
|
|
if domain_critical_only:
|
|
ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
|
|
|
|
ctx.do_join()
|
|
|
|
logger.info("Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid))
|
|
|
|
|
|
def join_DC(logger=None, server=None, creds=None, lp=None, site=None, netbios_name=None,
|
|
targetdir=None, domain=None, domain_critical_only=False,
|
|
machinepass=None, use_ntvfs=False, dns_backend=None,
|
|
promote_existing=False, plaintext_secrets=False,
|
|
backend_store=None,
|
|
backend_store_size=None):
|
|
"""Join as a DC."""
|
|
ctx = DCJoinContext(logger, server, creds, lp, site, netbios_name,
|
|
targetdir, domain, machinepass, use_ntvfs, dns_backend,
|
|
promote_existing, plaintext_secrets,
|
|
backend_store=backend_store,
|
|
backend_store_size=backend_store_size)
|
|
|
|
lp.set("workgroup", ctx.domain_name)
|
|
logger.info("workgroup is %s" % ctx.domain_name)
|
|
|
|
lp.set("realm", ctx.realm)
|
|
logger.info("realm is %s" % ctx.realm)
|
|
|
|
ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION
|
|
|
|
ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
|
|
ctx.secure_channel_type = misc.SEC_CHAN_BDC
|
|
|
|
ctx.replica_flags |= (drsuapi.DRSUAPI_DRS_WRIT_REP |
|
|
drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS)
|
|
ctx.domain_replica_flags = ctx.replica_flags
|
|
if domain_critical_only:
|
|
ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY
|
|
|
|
ctx.do_join()
|
|
logger.info("Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid))
|
|
|
|
|
|
def join_clone(logger=None, server=None, creds=None, lp=None,
|
|
targetdir=None, domain=None, include_secrets=False,
|
|
dns_backend="NONE", backend_store=None,
|
|
backend_store_size=None):
|
|
"""Creates a local clone of a remote DC."""
|
|
ctx = DCCloneContext(logger, server, creds, lp, targetdir=targetdir,
|
|
domain=domain, dns_backend=dns_backend,
|
|
include_secrets=include_secrets,
|
|
backend_store=backend_store,
|
|
backend_store_size=backend_store_size)
|
|
|
|
lp.set("workgroup", ctx.domain_name)
|
|
logger.info("workgroup is %s" % ctx.domain_name)
|
|
|
|
lp.set("realm", ctx.realm)
|
|
logger.info("realm is %s" % ctx.realm)
|
|
|
|
ctx.do_join()
|
|
logger.info("Cloned domain %s (SID %s)" % (ctx.domain_name, ctx.domsid))
|
|
return ctx
|
|
|
|
|
|
class DCCloneContext(DCJoinContext):
|
|
"""Clones a remote DC."""
|
|
|
|
def __init__(ctx, logger=None, server=None, creds=None, lp=None,
|
|
targetdir=None, domain=None, dns_backend=None,
|
|
include_secrets=False, backend_store=None,
|
|
backend_store_size=None):
|
|
super(DCCloneContext, ctx).__init__(logger, server, creds, lp,
|
|
targetdir=targetdir, domain=domain,
|
|
dns_backend=dns_backend,
|
|
backend_store=backend_store,
|
|
backend_store_size=backend_store_size)
|
|
|
|
# As we don't want to create or delete these DNs, we set them to None
|
|
ctx.server_dn = None
|
|
ctx.ntds_dn = None
|
|
ctx.acct_dn = None
|
|
ctx.myname = ctx.server.split('.')[0]
|
|
ctx.ntds_guid = None
|
|
ctx.rid_manager_dn = None
|
|
|
|
# Save this early
|
|
ctx.remote_dc_ntds_guid = ctx.samdb.get_ntds_GUID()
|
|
|
|
ctx.replica_flags |= (drsuapi.DRSUAPI_DRS_WRIT_REP |
|
|
drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS)
|
|
if not include_secrets:
|
|
ctx.replica_flags |= drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING
|
|
ctx.domain_replica_flags = ctx.replica_flags
|
|
|
|
def join_finalise(ctx):
|
|
ctx.logger.info("Setting isSynchronized and dsServiceName")
|
|
m = ldb.Message()
|
|
m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
|
|
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE,
|
|
"isSynchronized")
|
|
|
|
# We want to appear to be the server we just cloned
|
|
guid = ctx.remote_dc_ntds_guid
|
|
m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(guid),
|
|
ldb.FLAG_MOD_REPLACE,
|
|
"dsServiceName")
|
|
ctx.local_samdb.modify(m)
|
|
|
|
def do_join(ctx):
|
|
ctx.build_nc_lists()
|
|
|
|
# When cloning a DC, we just want to provision a DC locally, then
|
|
# grab the remote DC's entire DB via DRS replication
|
|
ctx.join_provision()
|
|
ctx.join_replicate()
|
|
ctx.join_finalise()
|
|
|
|
|
|
# Used to create a renamed backup of a DC. Renaming the domain means that the
|
|
# cloned/backup DC can be started without interfering with the production DC.
|
|
class DCCloneAndRenameContext(DCCloneContext):
|
|
"""Clones a remote DC, renaming the domain along the way."""
|
|
|
|
def __init__(ctx, new_base_dn, new_domain_name, new_realm, logger=None,
|
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server=None, creds=None, lp=None, targetdir=None, domain=None,
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dns_backend=None, include_secrets=True, backend_store=None):
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super(DCCloneAndRenameContext, ctx).__init__(logger, server, creds, lp,
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targetdir=targetdir,
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domain=domain,
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dns_backend=dns_backend,
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include_secrets=include_secrets,
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backend_store=backend_store)
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# store the new DN (etc) that we want the cloned DB to use
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ctx.new_base_dn = new_base_dn
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ctx.new_domain_name = new_domain_name
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ctx.new_realm = new_realm
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def create_replicator(ctx, repl_creds, binding_options):
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"""Creates a new DRS object for managing replications"""
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# We want to rename all the domain objects, and the simplest way to do
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# this is during replication. This is because the base DN of the top-
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# level replicated object will flow through to all the objects below it
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binding_str = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
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return drs_utils.drs_ReplicateRenamer(binding_str, ctx.lp, repl_creds,
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ctx.local_samdb,
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ctx.invocation_id,
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ctx.base_dn, ctx.new_base_dn)
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def create_non_global_lp(ctx, global_lp):
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'''Creates a non-global LoadParm based on the global LP's settings'''
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# the samba code shares a global LoadParm by default. Here we create a
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# new LoadParm that retains the global settings, but any changes we
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# make to it won't automatically affect the rest of the samba code.
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# The easiest way to do this is to dump the global settings to a
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# temporary smb.conf file, and then load the temp file into a new
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# non-global LoadParm
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fd, tmp_file = tempfile.mkstemp()
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global_lp.dump(False, tmp_file)
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local_lp = samba.param.LoadParm(filename_for_non_global_lp=tmp_file)
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os.remove(tmp_file)
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return local_lp
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def rename_dn(ctx, dn_str):
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'''Uses string substitution to replace the base DN'''
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old_base_dn = ctx.base_dn
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return re.sub('%s$' % old_base_dn, ctx.new_base_dn, dn_str)
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# we want to override the normal DCCloneContext's join_provision() so that
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# use the new domain DNs during the provision. We do this because:
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# - it sets up smb.conf/secrets.ldb with the new realm/workgroup values
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# - it sets up a default SAM DB that uses the new Schema DNs (without which
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# we couldn't apply the renamed DRS objects during replication)
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def join_provision(ctx):
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"""Provision the local (renamed) SAM."""
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print("Provisioning the new (renamed) domain...")
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# the provision() calls make_smbconf() which uses lp.dump()/lp.load()
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# to create a new smb.conf. By default, it uses the global LoadParm to
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# do this, and so it would overwrite the realm/domain values globally.
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# We still need the global LoadParm to retain the old domain's details,
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# so we can connect to (and clone) the existing DC.
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# So, copy the global settings into a non-global LoadParm, which we can
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# then pass into provision(). This generates a new smb.conf correctly,
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# without overwriting the global realm/domain values just yet.
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non_global_lp = ctx.create_non_global_lp(ctx.lp)
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# do the provision with the new/renamed domain DN values
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presult = provision(ctx.logger, system_session(),
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targetdir=ctx.targetdir, samdb_fill=FILL_DRS,
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realm=ctx.new_realm, lp=non_global_lp,
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rootdn=ctx.rename_dn(ctx.root_dn), domaindn=ctx.new_base_dn,
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schemadn=ctx.rename_dn(ctx.schema_dn),
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configdn=ctx.rename_dn(ctx.config_dn),
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domain=ctx.new_domain_name, domainsid=ctx.domsid,
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serverrole="active directory domain controller",
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dns_backend=ctx.dns_backend,
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backend_store=ctx.backend_store)
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print("Provision OK for renamed domain DN %s" % presult.domaindn)
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ctx.local_samdb = presult.samdb
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ctx.paths = presult.paths
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