source4/scripting/python/samba/provisionbackend.py

   1 #
   2 # Unix SMB/CIFS implementation.
   3 # backend code for provisioning a Samba4 server
   4
   5 # Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
   6 # Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008-2009
   7 # Copyright (C) Oliver Liebel <oliver@itc.li> 2008-2009
   8 #
   9 # Based on the original in EJS:
  10 # Copyright (C) Andrew Tridgell <tridge@samba.org> 2005
  11 #
  12 # This program is free software; you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation; either version 3 of the License, or
  15 # (at your option) any later version.
  16 #
  17 # This program is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 # GNU General Public License for more details.
  21 #
  22 # You should have received a copy of the GNU General Public License
  23 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 #
  25
  26 """Functions for setting up a Samba configuration (LDB and LDAP backends)."""
  27
  28 from base64 import b64encode
  29 import ldb
  30 import os
  31 import sys
  32 import uuid
  33 import time
  34 import shutil
  35 import subprocess
  36
  37 from samba import read_and_sub_file
  38 from samba import Ldb
  39 import urllib
  40 from ldb import SCOPE_BASE, SCOPE_ONELEVEL, LdbError, timestring
  41 from credentials import Credentials, DONT_USE_KERBEROS
  42 from samba import setup_file
  43 from schema import Schema
  44
  45 def setup_db_config(setup_path, dbdir):
  46     """Setup a Berkeley database.
  47
  48     :param setup_path: Setup path function.
  49     :param dbdir: Database directory."""
  50     if not os.path.isdir(os.path.join(dbdir, "bdb-logs")):
  51         os.makedirs(os.path.join(dbdir, "bdb-logs"), 0700)
  52         if not os.path.isdir(os.path.join(dbdir, "tmp")):
  53             os.makedirs(os.path.join(dbdir, "tmp"), 0700)
  54
  55     setup_file(setup_path("DB_CONFIG"), os.path.join(dbdir, "DB_CONFIG"),
  56                {"LDAPDBDIR": dbdir})
  57
  58 class ProvisionBackend(object):
  59     def __init__(self, backend_type, paths=None, setup_path=None, lp=None, credentials=None,
  60                  names=None, message=None):
  61         """Provision a backend for samba4"""
  62         self.paths = paths
  63         self.setup_path = setup_path
  64         self.lp = lp
  65         self.credentials = credentials
  66         self.names = names
  67         self.message = message
  68
  69         self.type = backend_type
  70
  71         # Set a default - the code for "existing" below replaces this
  72         self.ldap_backend_type = backend_type
  73
  74     def init(self):
  75         pass
  76
  77     def start(self):
  78         pass
  79
  80     def shutdown(self):
  81         pass
  82
  83     def post_setup(self):
  84         pass
  85
  86
  87 class LDBBackend(ProvisionBackend):
  88     def __init__(self, backend_type, paths=None, setup_path=None, lp=None, credentials=None,
  89                  names=None, message=None):
  90
  91         super(LDBBackend, self).__init__(
  92                 backend_type=backend_type,
  93                 paths=paths, setup_path=setup_path,
  94                 lp=lp, credentials=credentials,
  95                 names=names,
  96                 message=message)
  97
  98     def init(self):
  99         self.credentials = None
 100         self.secrets_credentials = None
 101
 102         # Wipe the old sam.ldb databases away
 103         shutil.rmtree(self.paths.samdb + ".d", True)
 104
 105
 106 class ExistingBackend(ProvisionBackend):
 107     def __init__(self, backend_type, paths=None, setup_path=None, lp=None, credentials=None,
 108                  names=None, message=None):
 109
 110         super(ExistingBackend, self).__init__(
 111                 backend_type=backend_type,
 112                 paths=paths, setup_path=setup_path,
 113                 lp=lp, credentials=credentials,
 114                 names=names,
 115                 message=message)
 116
 117         self.ldapi_uri = "ldapi://" + urllib.quote(os.path.join(paths.ldapdir, "ldapi"), safe="")
 118
 119     def init(self):
 120         #Check to see that this 'existing' LDAP backend in fact exists
 121         ldapi_db = Ldb(self.ldapi_uri, credentials=self.credentials)
 122         search_ol_rootdse = ldapi_db.search(base="", scope=SCOPE_BASE,
 123                                             expression="(objectClass=OpenLDAProotDSE)")
 124
 125         # If we have got here, then we must have a valid connection to the LDAP server, with valid credentials supplied
 126         # This caused them to be set into the long-term database later in the script.
 127         self.secrets_credentials = self.credentials
 128
 129         self.ldap_backend_type = "openldap" #For now, assume existing backends at least emulate OpenLDAP
 130
 131
 132 class LDAPBackend(ProvisionBackend):
 133     def __init__(self, backend_type, paths=None, setup_path=None, lp=None, credentials=None,
 134                  names=None, message=None,
 135                  domainsid=None,
 136                  schema=None,
 137                  hostname=None,
 138                  ldapadminpass=None,
 139                  slapd_path=None,
 140                  ldap_backend_extra_port=None,
 141                  ldap_dryrun_mode=False):
 142
 143         super(LDAPBackend, self).__init__(
 144                 backend_type=backend_type,
 145                 paths=paths, setup_path=setup_path,
 146                 lp=lp, credentials=credentials,
 147                 names=names,
 148                 message=message)
 149
 150         self.domainsid = domainsid
 151         self.schema = schema
 152         self.hostname = hostname
 153         self.ldapadminpass = ldapadminpass
 154
 155         self.slapd_path = slapd_path
 156         self.slapd_command = None
 157         self.slapd_command_escaped = None
 158
 159         self.ldap_backend_extra_port = ldap_backend_extra_port
 160         self.ldap_dryrun_mode = ldap_dryrun_mode
 161
 162         self.ldapi_uri = "ldapi://" + urllib.quote(os.path.join(paths.ldapdir, "ldapi"), safe="")
 163
 164         if not os.path.exists(self.paths.ldapdir):
 165             os.mkdir(self.paths.ldapdir)
 166
 167     def init(self):
 168         # we will shortly start slapd with ldapi for final provisioning. first check with ldapsearch -> rootDSE via self.ldapi_uri
 169         # if another instance of slapd is already running
 170         try:
 171             ldapi_db = Ldb(self.ldapi_uri)
 172             search_ol_rootdse = ldapi_db.search(base="", scope=SCOPE_BASE,
 173                                                 expression="(objectClass=OpenLDAProotDSE)");
 174             try:
 175                 f = open(self.paths.slapdpid, "r")
 176                 p = f.read()
 177                 f.close()
 178                 self.message("Check for slapd Process with PID: " + str(p) + " and terminate it manually.")
 179             except:
 180                 pass
 181
 182             raise ProvisioningError("Warning: Another slapd Instance seems already running on this host, listening to " + self.ldapi_uri + ". Please shut it down before you continue. ")
 183
 184         except LdbError, e:
 185             pass
 186
 187         # Try to print helpful messages when the user has not specified the path to slapd
 188         if self.slapd_path is None:
 189             raise ProvisioningError("Warning: LDAP-Backend must be setup with path to slapd, e.g. --slapd-path=\"/usr/local/libexec/slapd\"!")
 190         if not os.path.exists(self.slapd_path):
 191             self.message (self.slapd_path)
 192             raise ProvisioningError("Warning: Given Path to slapd does not exist!")
 193
 194
 195         if not os.path.isdir(self.paths.ldapdir):
 196             os.makedirs(self.paths.ldapdir, 0700)
 197
 198         # Put the LDIF of the schema into a database so we can search on
 199         # it to generate schema-dependent configurations in Fedora DS and
 200         # OpenLDAP
 201         schemadb_path = os.path.join(self.paths.ldapdir, "schema-tmp.ldb")
 202         try:
 203             os.unlink(schemadb_path)
 204         except OSError:
 205             pass
 206
 207         self.schema.write_to_tmp_ldb(schemadb_path);
 208
 209         self.credentials = Credentials()
 210         self.credentials.guess(self.lp)
 211         #Kerberos to an ldapi:// backend makes no sense
 212         self.credentials.set_kerberos_state(DONT_USE_KERBEROS)
 213         self.credentials.set_password(self.ldapadminpass)
 214
 215         self.secrets_credentials = Credentials()
 216         self.secrets_credentials.guess(self.lp)
 217         #Kerberos to an ldapi:// backend makes no sense
 218         self.secrets_credentials.set_kerberos_state(DONT_USE_KERBEROS)
 219         self.secrets_credentials.set_username("samba-admin")
 220         self.secrets_credentials.set_password(self.ldapadminpass)
 221
 222         self.provision()
 223
 224     def provision(self):
 225         pass
 226
 227     def start(self):
 228         self.slapd_command_escaped = "\'" + "\' \'".join(self.slapd_command) + "\'"
 229         setup_file(self.setup_path("ldap_backend_startup.sh"), self.paths.ldapdir + "/ldap_backend_startup.sh", {
 230                 "SLAPD_COMMAND" : self.slapd_command_escaped})
 231
 232         # Now start the slapd, so we can provision onto it.  We keep the
 233         # subprocess context around, to kill this off at the successful
 234         # end of the script
 235         self.slapd = subprocess.Popen(self.slapd_provision_command, close_fds=True, shell=False)
 236
 237         while self.slapd.poll() is None:
 238             # Wait until the socket appears
 239             try:
 240                 ldapi_db = Ldb(self.ldapi_uri, lp=self.lp, credentials=self.credentials)
 241                 search_ol_rootdse = ldapi_db.search(base="", scope=SCOPE_BASE,
 242                                                     expression="(objectClass=OpenLDAProotDSE)")
 243                 # If we have got here, then we must have a valid connection to the LDAP server!
 244                 return
 245             except LdbError, e:
 246                 time.sleep(1)
 247                 pass
 248
 249         raise ProvisioningError("slapd died before we could make a connection to it")
 250
 251     def shutdown(self):
 252         # if an LDAP backend is in use, terminate slapd after final provision and check its proper termination
 253         if self.slapd.poll() is None:
 254             #Kill the slapd
 255             if hasattr(self.slapd, "terminate"):
 256                 self.slapd.terminate()
 257             else:
 258                 # Older python versions don't have .terminate()
 259                 import signal
 260                 os.kill(self.slapd.pid, signal.SIGTERM)
 261
 262             #and now wait for it to die
 263             self.slapd.communicate()
 264
 265
 266 class OpenLDAPBackend(LDAPBackend):
 267     def __init__(self, backend_type, paths=None, setup_path=None, lp=None, credentials=None,
 268                  names=None, message=None,
 269                  domainsid=None,
 270                  schema=None,
 271                  hostname=None,
 272                  ldapadminpass=None,
 273                  slapd_path=None,
 274                  ldap_backend_extra_port=None,
 275                  ldap_dryrun_mode=False,
 276                  ol_mmr_urls=None,
 277                  nosync=False):
 278
 279         super(OpenLDAPBackend, self).__init__(
 280                 backend_type=backend_type,
 281                 paths=paths, setup_path=setup_path,
 282                 lp=lp, credentials=credentials,
 283                 names=names,
 284                 message=message,
 285                 domainsid=domainsid,
 286                 schema=schema,
 287                 hostname=hostname,
 288                 ldapadminpass=ldapadminpass,
 289                 slapd_path=slapd_path,
 290                 ldap_backend_extra_port=ldap_backend_extra_port,
 291                 ldap_dryrun_mode=ldap_dryrun_mode)
 292
 293         self.ol_mmr_urls = ol_mmr_urls
 294         self.nosync = nosync
 295
 296         self.schema = Schema(
 297                 self.setup_path,
 298                 self.domainsid,
 299                 schemadn=self.names.schemadn,
 300                 serverdn=self.names.serverdn,
 301                 files=[setup_path("schema_samba4.ldif")]);
 302
 303     def provision(self):
 304         # Wipe the directories so we can start
 305         shutil.rmtree(os.path.join(self.paths.ldapdir, "db"), True)
 306
 307         #Allow the test scripts to turn off fsync() for OpenLDAP as for TDB and LDB
 308         nosync_config = ""
 309         if self.nosync:
 310             nosync_config = "dbnosync"
 311
 312         lnkattr = self.schema.linked_attributes()
 313         refint_attributes = ""
 314         memberof_config = "# Generated from Samba4 schema\n"
 315         for att in  lnkattr.keys():
 316             if lnkattr[att] is not None:
 317                 refint_attributes = refint_attributes + " " + att
 318
 319                 memberof_config += read_and_sub_file(self.setup_path("memberof.conf"),
 320                                                  { "MEMBER_ATTR" : att ,
 321                                                    "MEMBEROF_ATTR" : lnkattr[att] })
 322
 323         refint_config = read_and_sub_file(self.setup_path("refint.conf"),
 324                                       { "LINK_ATTRS" : refint_attributes})
 325
 326         attrs = ["linkID", "lDAPDisplayName"]
 327         res = self.schema.ldb.search(expression="(&(objectclass=attributeSchema)(searchFlags:1.2.840.113556.1.4.803:=1))", base=self.names.schemadn, scope=SCOPE_ONELEVEL, attrs=attrs)
 328         index_config = ""
 329         for i in range (0, len(res)):
 330             index_attr = res[i]["lDAPDisplayName"][0]
 331             if index_attr == "objectGUID":
 332                 index_attr = "entryUUID"
 333
 334             index_config += "index " + index_attr + " eq\n"
 335
 336         # generate serverids, ldap-urls and syncrepl-blocks for mmr hosts
 337         mmr_on_config = ""
 338         mmr_replicator_acl = ""
 339         mmr_serverids_config = ""
 340         mmr_syncrepl_schema_config = ""
 341         mmr_syncrepl_config_config = ""
 342         mmr_syncrepl_user_config = ""
 343
 344
 345         if self.ol_mmr_urls is not None:
 346             # For now, make these equal
 347             mmr_pass = self.ldapadminpass
 348
 349             url_list=filter(None,self.ol_mmr_urls.split(' '))
 350             if (len(url_list) == 1):
 351                 url_list=filter(None,self.ol_mmr_urls.split(','))
 352
 353
 354                 mmr_on_config = "MirrorMode On"
 355                 mmr_replicator_acl = "  by dn=cn=replicator,cn=samba read"
 356                 serverid=0
 357                 for url in url_list:
 358                     serverid=serverid+1
 359                     mmr_serverids_config += read_and_sub_file(self.setup_path("mmr_serverids.conf"),
 360                                                           { "SERVERID" : str(serverid),
 361                                                             "LDAPSERVER" : url })
 362                     rid=serverid*10
 363                     rid=rid+1
 364                     mmr_syncrepl_schema_config += read_and_sub_file(self.setup_path("mmr_syncrepl.conf"),
 365                                                                 {  "RID" : str(rid),
 366                                                                    "MMRDN": self.names.schemadn,
 367                                                                    "LDAPSERVER" : url,
 368                                                                    "MMR_PASSWORD": mmr_pass})
 369
 370                     rid=rid+1
 371                     mmr_syncrepl_config_config += read_and_sub_file(self.setup_path("mmr_syncrepl.conf"),
 372                                                                 {  "RID" : str(rid),
 373                                                                    "MMRDN": self.names.configdn,
 374                                                                    "LDAPSERVER" : url,
 375                                                                    "MMR_PASSWORD": mmr_pass})
 376
 377                     rid=rid+1
 378                     mmr_syncrepl_user_config += read_and_sub_file(self.setup_path("mmr_syncrepl.conf"),
 379                                                               {  "RID" : str(rid),
 380                                                                  "MMRDN": self.names.domaindn,
 381                                                                  "LDAPSERVER" : url,
 382                                                                  "MMR_PASSWORD": mmr_pass })
 383         # OpenLDAP cn=config initialisation
 384         olc_syncrepl_config = ""
 385         olc_mmr_config = ""
 386         # if mmr = yes, generate cn=config-replication directives
 387         # and olc_seed.lif for the other mmr-servers
 388         if self.ol_mmr_urls is not None:
 389             serverid=0
 390             olc_serverids_config = ""
 391             olc_syncrepl_seed_config = ""
 392             olc_mmr_config += read_and_sub_file(self.setup_path("olc_mmr.conf"),{})
 393             rid=1000
 394             for url in url_list:
 395                 serverid=serverid+1
 396                 olc_serverids_config += read_and_sub_file(self.setup_path("olc_serverid.conf"),
 397                                                       { "SERVERID" : str(serverid),
 398                                                         "LDAPSERVER" : url })
 399
 400                 rid=rid+1
 401                 olc_syncrepl_config += read_and_sub_file(self.setup_path("olc_syncrepl.conf"),
 402                                                      {  "RID" : str(rid),
 403                                                         "LDAPSERVER" : url,
 404                                                         "MMR_PASSWORD": mmr_pass})
 405
 406                 olc_syncrepl_seed_config += read_and_sub_file(self.setup_path("olc_syncrepl_seed.conf"),
 407                                                           {  "RID" : str(rid),
 408                                                              "LDAPSERVER" : url})
 409
 410             setup_file(self.setup_path("olc_seed.ldif"), self.paths.olcseedldif,
 411                        {"OLC_SERVER_ID_CONF": olc_serverids_config,
 412                         "OLC_PW": self.ldapadminpass,
 413                         "OLC_SYNCREPL_CONF": olc_syncrepl_seed_config})
 414         # end olc
 415
 416         setup_file(self.setup_path("slapd.conf"), self.paths.slapdconf,
 417                    {"DNSDOMAIN": self.names.dnsdomain,
 418                     "LDAPDIR": self.paths.ldapdir,
 419                     "DOMAINDN": self.names.domaindn,
 420                     "CONFIGDN": self.names.configdn,
 421                     "SCHEMADN": self.names.schemadn,
 422                     "MEMBEROF_CONFIG": memberof_config,
 423                     "MIRRORMODE": mmr_on_config,
 424                     "REPLICATOR_ACL": mmr_replicator_acl,
 425                     "MMR_SERVERIDS_CONFIG": mmr_serverids_config,
 426                     "MMR_SYNCREPL_SCHEMA_CONFIG": mmr_syncrepl_schema_config,
 427                     "MMR_SYNCREPL_CONFIG_CONFIG": mmr_syncrepl_config_config,
 428                     "MMR_SYNCREPL_USER_CONFIG": mmr_syncrepl_user_config,
 429                     "OLC_SYNCREPL_CONFIG": olc_syncrepl_config,
 430                     "OLC_MMR_CONFIG": olc_mmr_config,
 431                     "REFINT_CONFIG": refint_config,
 432                     "INDEX_CONFIG": index_config,
 433                     "NOSYNC": nosync_config})
 434
 435         setup_db_config(self.setup_path, os.path.join(self.paths.ldapdir, "db", "user"))
 436         setup_db_config(self.setup_path, os.path.join(self.paths.ldapdir, "db", "config"))
 437         setup_db_config(self.setup_path, os.path.join(self.paths.ldapdir, "db", "schema"))
 438
 439         if not os.path.exists(os.path.join(self.paths.ldapdir, "db", "samba",  "cn=samba")):
 440             os.makedirs(os.path.join(self.paths.ldapdir, "db", "samba",  "cn=samba"), 0700)
 441
 442         setup_file(self.setup_path("cn=samba.ldif"),
 443                    os.path.join(self.paths.ldapdir, "db", "samba",  "cn=samba.ldif"),
 444                    { "UUID": str(uuid.uuid4()),
 445                      "LDAPTIME": timestring(int(time.time()))} )
 446         setup_file(self.setup_path("cn=samba-admin.ldif"),
 447                    os.path.join(self.paths.ldapdir, "db", "samba",  "cn=samba", "cn=samba-admin.ldif"),
 448                    {"LDAPADMINPASS_B64": b64encode(self.ldapadminpass),
 449                     "UUID": str(uuid.uuid4()),
 450                     "LDAPTIME": timestring(int(time.time()))} )
 451
 452         if self.ol_mmr_urls is not None:
 453             setup_file(self.setup_path("cn=replicator.ldif"),
 454                        os.path.join(self.paths.ldapdir, "db", "samba",  "cn=samba", "cn=replicator.ldif"),
 455                        {"MMR_PASSWORD_B64": b64encode(mmr_pass),
 456                         "UUID": str(uuid.uuid4()),
 457                         "LDAPTIME": timestring(int(time.time()))} )
 458
 459
 460         mapping = "schema-map-openldap-2.3"
 461         backend_schema = "backend-schema.schema"
 462
 463         backend_schema_data = self.schema.ldb.convert_schema_to_openldap("openldap", open(self.setup_path(mapping), 'r').read())
 464         assert backend_schema_data is not None
 465         open(os.path.join(self.paths.ldapdir, backend_schema), 'w').write(backend_schema_data)
 466
 467         # now we generate the needed strings to start slapd automatically,
 468         # first ldapi_uri...
 469         if self.ldap_backend_extra_port is not None:
 470             # When we use MMR, we can't use 0.0.0.0 as it uses the name
 471             # specified there as part of it's clue as to it's own name,
 472             # and not to replicate to itself
 473             if self.ol_mmr_urls is None:
 474                 server_port_string = "ldap://0.0.0.0:%d" % self.ldap_backend_extra_port
 475             else:
 476                 server_port_string = "ldap://" + self.names.hostname + "." + self.names.dnsdomain +":%d" % self.ldap_backend_extra_port
 477         else:
 478             server_port_string = ""
 479
 480         # Prepare the 'result' information - the commands to return in particular
 481         self.slapd_provision_command = [self.slapd_path]
 482
 483         self.slapd_provision_command.append("-F" + self.paths.olcdir)
 484
 485         self.slapd_provision_command.append("-h")
 486
 487         # copy this command so we have two version, one with -d0 and only ldapi, and one with all the listen commands
 488         self.slapd_command = list(self.slapd_provision_command)
 489
 490         self.slapd_provision_command.append(self.ldapi_uri)
 491         self.slapd_provision_command.append("-d0")
 492
 493         uris = self.ldapi_uri
 494         if server_port_string is not "":
 495             uris = uris + " " + server_port_string
 496
 497         self.slapd_command.append(uris)
 498
 499         # Set the username - done here because Fedora DS still uses the admin DN and simple bind
 500         self.credentials.set_username("samba-admin")
 501
 502         # If we were just looking for crashes up to this point, it's a
 503         # good time to exit before we realise we don't have OpenLDAP on
 504         # this system
 505         if self.ldap_dryrun_mode:
 506             sys.exit(0)
 507
 508         # Finally, convert the configuration into cn=config style!
 509         if not os.path.isdir(self.paths.olcdir):
 510             os.makedirs(self.paths.olcdir, 0770)
 511
 512             retcode = subprocess.call([self.slapd_path, "-Ttest", "-f", self.paths.slapdconf, "-F", self.paths.olcdir], close_fds=True, shell=False)
 513
 514 #            We can't do this, as OpenLDAP is strange.  It gives an error
 515 #            output to the above, but does the conversion sucessfully...
 516 #
 517 #            if retcode != 0:
 518 #                raise ProvisioningError("conversion from slapd.conf to cn=config failed")
 519
 520             if not os.path.exists(os.path.join(self.paths.olcdir, "cn=config.ldif")):
 521                 raise ProvisioningError("conversion from slapd.conf to cn=config failed")
 522
 523             # Don't confuse the admin by leaving the slapd.conf around
 524             os.remove(self.paths.slapdconf)
 525
 526
 527 class FDSBackend(LDAPBackend):
 528     def __init__(self, backend_type, paths=None, setup_path=None, lp=None, credentials=None,
 529                  names=None, message=None,
 530                  domainsid=None,
 531                  schema=None,
 532                  hostname=None,
 533                  ldapadminpass=None,
 534                  slapd_path=None,
 535                  ldap_backend_extra_port=None,
 536                  ldap_dryrun_mode=False,
 537                  root=None,
 538                  setup_ds_path=None):
 539
 540         super(FDSBackend, self).__init__(
 541                 backend_type=backend_type,
 542                 paths=paths, setup_path=setup_path,
 543                 lp=lp, credentials=credentials,
 544                 names=names,
 545                 message=message,
 546                 domainsid=domainsid,
 547                 schema=schema,
 548                 hostname=hostname,
 549                 ldapadminpass=ldapadminpass,
 550                 slapd_path=slapd_path,
 551                 ldap_backend_extra_port=ldap_backend_extra_port,
 552                 ldap_dryrun_mode=ldap_dryrun_mode)
 553
 554         self.root = root
 555         self.setup_ds_path = setup_ds_path
 556
 557         self.sambadn = "CN=Samba"
 558
 559         self.fedoradsinf = os.path.join(paths.ldapdir, "fedorads.inf")
 560         self.partitions_ldif = os.path.join(paths.ldapdir, "fedorads-partitions.ldif")
 561         self.sasl_ldif = os.path.join(paths.ldapdir, "fedorads-sasl.ldif")
 562         self.dna_ldif = os.path.join(paths.ldapdir, "fedorads-dna.ldif")
 563         self.pam_ldif = os.path.join(paths.ldapdir, "fedorads-pam.ldif")
 564         self.refint_ldif = os.path.join(paths.ldapdir, "fedorads-refint.ldif")
 565         self.linked_attrs_ldif = os.path.join(paths.ldapdir, "fedorads-linked-attributes.ldif")
 566         self.index_ldif = os.path.join(paths.ldapdir, "fedorads-index.ldif")
 567         self.samba_ldif = os.path.join(paths.ldapdir, "fedorads-samba.ldif")
 568
 569         self.samba3_schema = self.setup_path("../../examples/LDAP/samba.schema")
 570         self.samba3_ldif = os.path.join(self.paths.ldapdir, "samba3.ldif")
 571
 572         self.retcode = subprocess.call(["bin/oLschema2ldif", "-H", "NONE",
 573                 "-I", self.samba3_schema,
 574                 "-O", self.samba3_ldif,
 575                 "-b", self.names.domaindn],
 576                 close_fds=True, shell=False)
 577
 578         if self.retcode != 0:
 579             raise Exception("Unable to convert Samba 3 schema.")
 580
 581         self.schema = Schema(
 582                 self.setup_path,
 583                 self.domainsid,
 584                 schemadn=self.names.schemadn,
 585                 serverdn=self.names.serverdn,
 586                 files=[setup_path("schema_samba4.ldif"), self.samba3_ldif],
 587                 prefixmap=["1000:1.3.6.1.4.1.7165.2.1", "1001:1.3.6.1.4.1.7165.2.2"])
 588
 589     def provision(self):
 590         if self.ldap_backend_extra_port is not None:
 591             serverport = "ServerPort=%d" % self.ldap_backend_extra_port
 592         else:
 593             serverport = ""
 594
 595         setup_file(self.setup_path("fedorads.inf"), self.fedoradsinf,
 596                    {"ROOT": self.root,
 597                     "HOSTNAME": self.hostname,
 598                     "DNSDOMAIN": self.names.dnsdomain,
 599                     "LDAPDIR": self.paths.ldapdir,
 600                     "DOMAINDN": self.names.domaindn,
 601                     "LDAPMANAGERDN": self.names.ldapmanagerdn,
 602                     "LDAPMANAGERPASS": self.ldapadminpass,
 603                     "SERVERPORT": serverport})
 604
 605         setup_file(self.setup_path("fedorads-partitions.ldif"), self.partitions_ldif,
 606                    {"CONFIGDN": self.names.configdn,
 607                     "SCHEMADN": self.names.schemadn,
 608                     "SAMBADN": self.sambadn,
 609                     })
 610
 611         setup_file(self.setup_path("fedorads-sasl.ldif"), self.sasl_ldif,
 612                    {"SAMBADN": self.sambadn,
 613                     })
 614
 615         setup_file(self.setup_path("fedorads-dna.ldif"), self.dna_ldif,
 616                    {"DOMAINDN": self.names.domaindn,
 617                     "SAMBADN": self.sambadn,
 618                     "DOMAINSID": str(self.domainsid),
 619                     })
 620
 621         setup_file(self.setup_path("fedorads-pam.ldif"), self.pam_ldif)
 622
 623         lnkattr = self.schema.linked_attributes()
 624
 625         refint_config = data = open(self.setup_path("fedorads-refint-delete.ldif"), 'r').read()
 626         memberof_config = ""
 627         index_config = ""
 628         argnum = 3
 629
 630         for attr in lnkattr.keys():
 631             if lnkattr[attr] is not None:
 632                 refint_config += read_and_sub_file(self.setup_path("fedorads-refint-add.ldif"),
 633                                                  { "ARG_NUMBER" : str(argnum) ,
 634                                                    "LINK_ATTR" : attr })
 635                 memberof_config += read_and_sub_file(self.setup_path("fedorads-linked-attributes.ldif"),
 636                                                  { "MEMBER_ATTR" : attr ,
 637                                                    "MEMBEROF_ATTR" : lnkattr[attr] })
 638                 index_config += read_and_sub_file(self.setup_path("fedorads-index.ldif"),
 639                                                  { "ATTR" : attr })
 640                 argnum += 1
 641
 642         open(self.refint_ldif, 'w').write(refint_config)
 643         open(self.linked_attrs_ldif, 'w').write(memberof_config)
 644
 645         attrs = ["lDAPDisplayName"]
 646         res = self.schema.ldb.search(expression="(&(objectclass=attributeSchema)(searchFlags:1.2.840.113556.1.4.803:=1))", base=self.names.schemadn, scope=SCOPE_ONELEVEL, attrs=attrs)
 647
 648         for i in range (0, len(res)):
 649             attr = res[i]["lDAPDisplayName"][0]
 650
 651             if attr == "objectGUID":
 652                 attr = "nsUniqueId"
 653
 654             index_config += read_and_sub_file(self.setup_path("fedorads-index.ldif"),
 655                                              { "ATTR" : attr })
 656
 657         open(self.index_ldif, 'w').write(index_config)
 658
 659         setup_file(self.setup_path("fedorads-samba.ldif"), self.samba_ldif,
 660                     {"SAMBADN": self.sambadn,
 661                      "LDAPADMINPASS": self.ldapadminpass
 662                     })
 663
 664         mapping = "schema-map-fedora-ds-1.0"
 665         backend_schema = "99_ad.ldif"
 666
 667         # Build a schema file in Fedora DS format
 668         backend_schema_data = self.schema.ldb.convert_schema_to_openldap("fedora-ds", open(self.setup_path(mapping), 'r').read())
 669         assert backend_schema_data is not None
 670         open(os.path.join(self.paths.ldapdir, backend_schema), 'w').write(backend_schema_data)
 671
 672         self.credentials.set_bind_dn(self.names.ldapmanagerdn)
 673
 674         # Destory the target directory, or else setup-ds.pl will complain
 675         fedora_ds_dir = os.path.join(self.paths.ldapdir, "slapd-samba4")
 676         shutil.rmtree(fedora_ds_dir, True)
 677
 678         self.slapd_provision_command = [self.slapd_path, "-D", fedora_ds_dir, "-i", self.paths.slapdpid];
 679         #In the 'provision' command line, stay in the foreground so we can easily kill it
 680         self.slapd_provision_command.append("-d0")
 681
 682         #the command for the final run is the normal script
 683         self.slapd_command = [os.path.join(self.paths.ldapdir, "slapd-samba4", "start-slapd")]
 684
 685         # If we were just looking for crashes up to this point, it's a
 686         # good time to exit before we realise we don't have Fedora DS on
 687         if self.ldap_dryrun_mode:
 688             sys.exit(0)
 689
 690         # Try to print helpful messages when the user has not specified the path to the setup-ds tool
 691         if self.setup_ds_path is None:
 692             raise ProvisioningError("Warning: Fedora DS LDAP-Backend must be setup with path to setup-ds, e.g. --setup-ds-path=\"/usr/sbin/setup-ds.pl\"!")
 693         if not os.path.exists(self.setup_ds_path):
 694             self.message (self.setup_ds_path)
 695             raise ProvisioningError("Warning: Given Path to slapd does not exist!")
 696
 697         # Run the Fedora DS setup utility
 698         retcode = subprocess.call([self.setup_ds_path, "--silent", "--file", self.fedoradsinf], close_fds=True, shell=False)
 699         if retcode != 0:
 700             raise ProvisioningError("setup-ds failed")
 701
 702         # Load samba-admin
 703         retcode = subprocess.call([
 704             os.path.join(self.paths.ldapdir, "slapd-samba4", "ldif2db"), "-s", self.sambadn, "-i", self.samba_ldif],
 705             close_fds=True, shell=False)
 706         if retcode != 0:
 707             raise("ldif2db failed")
 708
 709     def post_setup(self):
 710         ldapi_db = Ldb(self.ldapi_uri, credentials=self.credentials)
 711
 712         # delete default SASL mappings
 713         res = ldapi_db.search(expression="(!(cn=samba-admin mapping))", base="cn=mapping,cn=sasl,cn=config", scope=SCOPE_ONELEVEL, attrs=["dn"])
 714
 715         # configure in-directory access control on Fedora DS via the aci attribute (over a direct ldapi:// socket)
 716         for i in range (0, len(res)):
 717             dn = str(res[i]["dn"])
 718             ldapi_db.delete(dn)
 719
 720             aci = """(targetattr = "*") (version 3.0;acl "full access to all by samba-admin";allow (all)(userdn = "ldap:///CN=samba-admin,%s");)""" % self.sambadn
 721
 722             m = ldb.Message()
 723             m["aci"] = ldb.MessageElement([aci], ldb.FLAG_MOD_REPLACE, "aci")
 724
 725             m.dn = ldb.Dn(1, self.names.domaindn)
 726             ldapi_db.modify(m)
 727
 728             m.dn = ldb.Dn(1, self.names.configdn)
 729             ldapi_db.modify(m)
 730
 731             m.dn = ldb.Dn(1, self.names.schemadn)
 732             ldapi_db.modify(m)