/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ /* * Copyright (C) 1998 by the FundsXpress, INC. * * All rights reserved. * * Export of this software from the United States of America may require * a specific license from the United States Government. It is the * responsibility of any person or organization contemplating export to * obtain such a license before exporting. * * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and * distribute this software and its documentation for any purpose and * without fee is hereby granted, provided that the above copyright * notice appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, and that * the name of FundsXpress. not be used in advertising or publicity pertaining * to distribution of the software without specific, written prior * permission. FundsXpress makes no representations about the suitability of * this software for any purpose. It is provided "as is" without express * or implied warranty. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #include "k5-int.h" #include "aead.h" /* * Because our built-in HMAC implementation doesn't need to invoke any * encryption or keyed hash functions, it is simplest to define it in terms of * keyblocks, and then supply a simple wrapper for the "normal" krb5_key-using * interfaces. The keyblock interfaces are useful for code which creates * intermediate keyblocks. */ /* * The HMAC transform looks like: * * H(K XOR opad, H(K XOR ipad, text)) * * where H is a cryptographic hash * K is an n byte key * ipad is the byte 0x36 repeated blocksize times * opad is the byte 0x5c repeated blocksize times * and text is the data being protected */ krb5_error_code krb5int_hmac_keyblock(const struct krb5_hash_provider *hash, const krb5_keyblock *keyblock, const krb5_crypto_iov *data, size_t num_data, krb5_data *output) { unsigned char *xorkey = NULL, *ihash = NULL; unsigned int i; krb5_crypto_iov *ihash_iov = NULL, ohash_iov[2]; krb5_data hashout; krb5_error_code ret; if (keyblock->length > hash->blocksize) return KRB5_CRYPTO_INTERNAL; if (output->length < hash->hashsize) return KRB5_BAD_MSIZE; /* Allocate space for the xor key, hash input vector, and inner hash */ xorkey = k5alloc(hash->blocksize, &ret); if (xorkey == NULL) goto cleanup; ihash = k5alloc(hash->hashsize, &ret); if (ihash == NULL) goto cleanup; ihash_iov = k5alloc((num_data + 1) * sizeof(krb5_crypto_iov), &ret); if (ihash_iov == NULL) goto cleanup; /* Create the inner padded key. */ memset(xorkey, 0x36, hash->blocksize); for (i = 0; i < keyblock->length; i++) xorkey[i] ^= keyblock->contents[i]; /* Compute the inner hash over the inner key and input data. */ ihash_iov[0].flags = KRB5_CRYPTO_TYPE_DATA; ihash_iov[0].data = make_data(xorkey, hash->blocksize); memcpy(ihash_iov + 1, data, num_data * sizeof(krb5_crypto_iov)); hashout = make_data(ihash, hash->hashsize); ret = hash->hash(ihash_iov, num_data + 1, &hashout); if (ret != 0) goto cleanup; /* Create the outer padded key. */ memset(xorkey, 0x5c, hash->blocksize); for (i = 0; i < keyblock->length; i++) xorkey[i] ^= keyblock->contents[i]; /* Compute the outer hash over the outer key and inner hash value. */ ohash_iov[0].flags = KRB5_CRYPTO_TYPE_DATA; ohash_iov[0].data = make_data(xorkey, hash->blocksize); ohash_iov[1].flags = KRB5_CRYPTO_TYPE_DATA; ohash_iov[1].data = make_data(ihash, hash->hashsize); output->length = hash->hashsize; ret = hash->hash(ohash_iov, 2, output); if (ret != 0) memset(output->data, 0, output->length); cleanup: zapfree(xorkey, hash->blocksize); zapfree(ihash, hash->hashsize); free(ihash_iov); return ret; } krb5_error_code krb5int_hmac(const struct krb5_hash_provider *hash, krb5_key key, const krb5_crypto_iov *data, size_t num_data, krb5_data *output) { return krb5int_hmac_keyblock(hash, &key->keyblock, data, num_data, output); } 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 
#!/usr/bin/env python
#
# python join code
# Copyright Andrew Tridgell 2010
# Copyright Andrew Bartlett 2010
#
# 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/>.
#

"""Joining a domain."""

from samba.auth import system_session
from samba.samdb import SamDB
from samba import gensec, Ldb, drs_utils
import ldb, samba, sys, os, uuid
from samba.ndr import ndr_pack
from samba.dcerpc import security, drsuapi, misc, nbt
from samba.credentials import Credentials, DONT_USE_KERBEROS
from samba.provision import secretsdb_self_join, provision, FILL_DRS
from samba.schema import Schema
from samba.net import Net
import logging
import talloc

# this makes debugging easier
talloc.enable_null_tracking()


class dc_join(object):
    '''perform a DC join'''

    def __init__(ctx, server=None, creds=None, lp=None, site=None,
            netbios_name=None, targetdir=None, domain=None):
        ctx.creds = creds
        ctx.lp = lp
        ctx.site = site
        ctx.netbios_name = netbios_name
        ctx.targetdir = targetdir

        ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
        ctx.net = Net(creds=ctx.creds, lp=ctx.lp)

        if server is not None:
            ctx.server = server
        else:
            print("Finding a writeable DC for domain '%s'" % domain)
            ctx.server = ctx.find_dc(domain)
            print("Found DC %s" % ctx.server)

        ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
                          session_info=system_session(),
                          credentials=ctx.creds, lp=ctx.lp)

        ctx.myname = netbios_name
        ctx.samname = "%s$" % ctx.myname
        ctx.base_dn = str(ctx.samdb.get_default_basedn())
        ctx.root_dn = str(ctx.samdb.get_root_basedn())
        ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
        ctx.config_dn = str(ctx.samdb.get_config_basedn())
        ctx.domsid = ctx.samdb.get_domain_sid()
        ctx.domain_name = ctx.get_domain_name()

        lp.set("workgroup", ctx.domain_name)
        print("workgroup is %s" % ctx.domain_name)

        ctx.dc_ntds_dn = ctx.get_dsServiceName()
        ctx.dc_dnsHostName = ctx.get_dnsHostName()
        ctx.behavior_version = ctx.get_behavior_version()

        ctx.acct_pass = samba.generate_random_password(32, 40)

        # work out the DNs of all the objects we will be adding
        ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
        ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
        topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
        if ctx.dn_exists(topology_base):
            ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
        else:
            ctx.topology_dn = None

        ctx.dnsdomain = ldb.Dn(ctx.samdb, ctx.base_dn).canonical_str().split('/')[0]

        ctx.realm = ctx.dnsdomain
        lp.set("realm", ctx.realm)

        print("realm is %s" % ctx.realm)

        ctx.dnshostname = "%s.%s" % (ctx.myname.lower(), ctx.dnsdomain)

        ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)

        ctx.tmp_samdb = None

        ctx.SPNs = [ "HOST/%s" % ctx.myname,
                     "HOST/%s" % ctx.dnshostname,
                     "GC/%s/%s" % (ctx.dnshostname, ctx.dnsdomain) ]

        # these elements are optional
        ctx.never_reveal_sid = None
        ctx.reveal_sid = None
        ctx.connection_dn = None
        ctx.RODC = False
        ctx.krbtgt_dn = None
        ctx.drsuapi = None
        ctx.managedby = None


    def del_noerror(ctx, dn, recursive=False):
        if recursive:
            try:
                res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
            except Exception:
                return
            for r in res:
                ctx.del_noerror(r.dn, recursive=True)
        try:
            ctx.samdb.delete(dn)
            print "Deleted %s" % dn
        except Exception:
            pass

    def cleanup_old_join(ctx):
        '''remove any DNs from a previous join'''
        try:
            # find the krbtgt link
            print("checking samaccountname")
            res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
                                   expression='samAccountName=%s' % ctx.samname,
                                   attrs=["msDS-krbTgtLink"])
            if res:
                ctx.del_noerror(res[0].dn, recursive=True)
            if ctx.connection_dn is not None:
                ctx.del_noerror(ctx.connection_dn)
            if ctx.krbtgt_dn is not None:
                ctx.del_noerror(ctx.krbtgt_dn)
            ctx.del_noerror(ctx.ntds_dn)
            ctx.del_noerror(ctx.server_dn, recursive=True)
            if ctx.topology_dn:
                ctx.del_noerror(ctx.topology_dn)
            if res:
                ctx.new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
                ctx.del_noerror(ctx.new_krbtgt_dn)
        except Exception:
            pass

    def find_dc(ctx, domain):
        '''find a writeable DC for the given domain'''
        try:
            ctx.cldap_ret = ctx.net.finddc(domain, nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
        except Exception:
            raise Exception("Failed to find a writeable DC for domain '%s'" % domain)
        if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
            ctx.site = ctx.cldap_ret.client_site
        return ctx.cldap_ret.pdc_dns_name


    def get_dsServiceName(ctx):
        res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
        return res[0]["dsServiceName"][0]

    def get_behavior_version(ctx):
        res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
        if "msDS-Behavior-Version" in res[0]:
            return int(res[0]["msDS-Behavior-Version"][0])
        else:
            return samba.dsdb.DS_DOMAIN_FUNCTION_2000

    def get_dnsHostName(ctx):
        res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
        return res[0]["dnsHostName"][0]

    def get_domain_name(ctx):
        '''get netbios name of the domain from the partitions record'''
        partitions_dn = ctx.samdb.get_partitions_dn()
        res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
                               expression='ncName=%s' % ctx.samdb.get_default_basedn())
        return res[0]["nETBIOSName"][0]

    def get_mysid(ctx):
        '''get the SID of the connected user. Only works with w2k8 and later,
           so only used for RODC join'''
        res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
        binsid = res[0]["tokenGroups"][0]
        return ctx.samdb.schema_format_value("objectSID", binsid)

    def dn_exists(ctx, dn):
        '''check if a DN exists'''
        try:
            res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
        except ldb.LdbError, (enum, estr):
            if enum == ldb.ERR_NO_SUCH_OBJECT:
                return False
            raise
        return True

    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 server'''
        binding_options = "seal"
        if ctx.lp.get("log level") >= 5:
            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(security.dom_sid(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, rec):
        '''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()

        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]
            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

        first_object = drsuapi.DsReplicaObjectListItem()
        first_object.object = object

        req2 = drsuapi.DsAddEntryRequest2()
        req2.first_object = first_object

        (level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
        if ctr.err_ver != 1:
            raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
        if ctr.err_data.status != (0, 'WERR_OK'):
            print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status,
                                                                ctr.err_data.info.extended_err))
            raise RuntimeError("DsAddEntry failed")

    def join_add_objects(ctx):
        '''add the various objects needed for the join'''
        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)
        if ctx.managedby:
            rec["managedby"] = ctx.managedby
        if ctx.never_reveal_sid:
            rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
        if ctx.reveal_sid:
            rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
        ctx.samdb.add(rec)

        if ctx.krbtgt_dn:
            ctx.add_krbtgt_account()

        print "Adding %s" % ctx.server_dn
        rec = {
            "dn": ctx.server_dn,
            "objectclass" : "server",
            "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),
            "serverReference" : ctx.acct_dn,
            "dnsHostName" : ctx.dnshostname}
        ctx.samdb.add(rec)

        # FIXME: the partition (NC) assignment has to be made dynamic
        print "Adding %s" % ctx.ntds_dn
        rec = {
            "dn" : ctx.ntds_dn,
            "objectclass" : "nTDSDSA",
            "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
            "dMDLocation" : ctx.schema_dn}

        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec["msDS-Behavior-Version"] = str(ctx.behavior_version)

        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.base_dn, ctx.config_dn, ctx.schema_dn ]
            rec["options"] = "37"
            ctx.samdb.add(rec, ["rodc_join:1:1"])
        else:
            rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
            rec["HasMasterNCs"]      = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
            if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
                rec["msDS-HasMasterNCs"] = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]
            rec["options"] = "1"
            rec["invocationId"] = ndr_pack(misc.GUID(str(uuid.uuid4())))
            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]))

        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.topology_dn:
            print "Adding %s" % ctx.topology_dn
            rec = {
                "dn" : ctx.topology_dn,
                "objectclass" : "msDFSR-Member",
                "msDFSR-ComputerReference" : ctx.acct_dn,
                "serverReference" : ctx.ntds_dn}
            ctx.samdb.add(rec)

        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_ADD,
                                                       "servicePrincipalName")
        ctx.samdb.modify(m)

        print "Setting account password for %s" % ctx.samname
        ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))" % ctx.samname,
                              ctx.acct_pass,
                              force_change_at_next_login=False,
                              username=ctx.samname)
        res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-keyVersionNumber"])
        ctx.key_version_number = int(res[0]["msDS-keyVersionNumber"][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)

    def join_provision(ctx):
        '''provision the local SAM'''

        print "Calling bare provision"

        logger = logging.getLogger("provision")
        logger.addHandler(logging.StreamHandler(sys.stdout))
        smbconf = ctx.lp.configfile

        presult = provision(logger, system_session(), None,
                            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="domain controller",
                            sitename=ctx.site, lp=ctx.lp)
        print "Provision OK for domain DN %s" % presult.domaindn
        ctx.local_samdb = presult.samdb
        ctx.lp          = presult.lp
        ctx.paths       = presult.paths


    def join_replicate(ctx):
        '''replicate the SAM'''

        print "Starting replication"
        ctx.local_samdb.transaction_start()
        try:
            source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
            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.get("debug level") >= 5:
                binding_options += ",print"
            repl = drs_utils.drs_Replicate(
                "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
                ctx.lp, repl_creds, ctx.local_samdb)

            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)
            repl.replicate(ctx.base_dn, 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)

            print "Committing SAM database"
        except:
            ctx.local_samdb.transaction_cancel()
            raise
        else:
            ctx.local_samdb.transaction_commit()


    def join_finalise(ctx):
        '''finalise the join, mark us synchronised and setup secrets db'''

        print "Setting isSynchronized"
        m = ldb.Message()
        m.dn = ldb.Dn(ctx.samdb, '@ROOTDSE')
        m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
        ctx.samdb.modify(m)

        secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)

        print "Setting up secrets database"
        secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
                            realm=ctx.realm,
                            dnsdomain=ctx.dnsdomain,
                            netbiosname=ctx.myname,
                            domainsid=security.dom_sid(ctx.domsid),
                            machinepass=ctx.acct_pass,
                            secure_channel_type=ctx.secure_channel_type,
                            key_version_number=ctx.key_version_number)

    def do_join(ctx):
        ctx.cleanup_old_join()
        try:
            ctx.join_add_objects()
            ctx.join_provision()
            ctx.join_replicate()
            ctx.join_finalise()
        except Exception:
            print "Join failed - cleaning up"
            ctx.cleanup_old_join()
            raise


def join_RODC(server=None, creds=None, lp=None, site=None, netbios_name=None,
              targetdir=None, domain=None):
    """join as a RODC"""

    ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain)

    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_INIT_SYNC |
                           drsuapi.DRSUAPI_DRS_PER_SYNC |
                           drsuapi.DRSUAPI_DRS_GET_ANC |
                           drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
                           drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
                           drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
    ctx.do_join()


    print "Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid)


def join_DC(server=None, creds=None, lp=None, site=None, netbios_name=None,
            targetdir=None, domain=None):
    """join as a DC"""
    ctx = dc_join(server, creds, lp, site, netbios_name, targetdir, domain)

    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_INIT_SYNC |
                         drsuapi.DRSUAPI_DRS_PER_SYNC |
                         drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
                         drsuapi.DRSUAPI_DRS_NEVER_SYNCED)

    ctx.do_join()
    print "Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid)
generated by cgit (git 2.34.1) at 2026-01-22 18:08:27 +0000