1 # Samba4 AD database checker
3 # Copyright (C) Andrew Tridgell 2011
4 # Copyright (C) Matthieu Patou <mat@matws.net> 2011
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 from base64 import b64decode
24 from samba import dsdb
25 from samba import common
26 from samba.dcerpc import misc
27 from samba.dcerpc import drsuapi
28 from samba.ndr import ndr_unpack, ndr_pack
29 from samba.dcerpc import drsblobs
30 from samba.common import dsdb_Dn
31 from samba.dcerpc import security
32 from samba.descriptor import get_wellknown_sds, get_diff_sds
33 from samba.auth import system_session, admin_session
34 from samba.netcmd import CommandError
35 from samba.netcmd.fsmo import get_fsmo_roleowner
38 class dbcheck(object):
39 """check a SAM database for errors"""
41 def __init__(self, samdb, samdb_schema=None, verbose=False, fix=False,
42 yes=False, quiet=False, in_transaction=False,
43 reset_well_known_acls=False):
45 self.dict_oid_name = None
46 self.samdb_schema = (samdb_schema or samdb)
47 self.verbose = verbose
51 self.remove_all_unknown_attributes = False
52 self.remove_all_empty_attributes = False
53 self.fix_all_normalisation = False
54 self.fix_all_duplicates = False
55 self.fix_all_DN_GUIDs = False
56 self.fix_all_binary_dn = False
57 self.remove_implausible_deleted_DN_links = False
58 self.remove_plausible_deleted_DN_links = False
59 self.fix_all_string_dn_component_mismatch = False
60 self.fix_all_GUID_dn_component_mismatch = False
61 self.fix_all_SID_dn_component_mismatch = False
62 self.fix_all_old_dn_string_component_mismatch = False
63 self.fix_all_metadata = False
64 self.fix_time_metadata = False
65 self.fix_undead_linked_attributes = False
66 self.fix_all_missing_backlinks = False
67 self.fix_all_orphaned_backlinks = False
68 self.fix_rmd_flags = False
69 self.fix_ntsecuritydescriptor = False
70 self.fix_ntsecuritydescriptor_owner_group = False
71 self.seize_fsmo_role = False
72 self.move_to_lost_and_found = False
73 self.fix_instancetype = False
74 self.fix_replmetadata_zero_invocationid = False
75 self.fix_replmetadata_duplicate_attid = False
76 self.fix_replmetadata_wrong_attid = False
77 self.fix_replmetadata_unsorted_attid = False
78 self.fix_deleted_deleted_objects = False
79 self.fix_incorrect_deleted_objects = False
81 self.fix_base64_userparameters = False
82 self.fix_utf8_userparameters = False
83 self.fix_doubled_userparameters = False
84 self.fix_sid_rid_set_conflict = False
85 self.reset_well_known_acls = reset_well_known_acls
86 self.reset_all_well_known_acls = False
87 self.in_transaction = in_transaction
88 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
89 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
90 self.schema_dn = samdb.get_schema_basedn()
91 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
92 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
93 self.class_schemaIDGUID = {}
94 self.wellknown_sds = get_wellknown_sds(self.samdb)
95 self.fix_all_missing_objectclass = False
96 self.fix_missing_deleted_objects = False
97 self.fix_replica_locations = False
98 self.fix_missing_rid_set_master = False
101 self.link_id_cache = {}
104 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
106 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
107 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
108 except ldb.LdbError, (enum, estr):
109 if enum != ldb.ERR_NO_SUCH_OBJECT:
113 self.system_session_info = system_session()
114 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
116 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
117 if "msDS-hasMasterNCs" in res[0]:
118 self.write_ncs = res[0]["msDS-hasMasterNCs"]
120 # If the Forest Level is less than 2003 then there is no
121 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
122 # no need to merge as all the NCs that are in hasMasterNCs must
123 # also be in msDS-hasMasterNCs (but not the opposite)
124 if "hasMasterNCs" in res[0]:
125 self.write_ncs = res[0]["hasMasterNCs"]
127 self.write_ncs = None
129 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
130 self.deleted_objects_containers = []
131 self.ncs_lacking_deleted_containers = []
132 self.dns_partitions = []
134 self.ncs = res[0]["namingContexts"]
142 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
143 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
144 self.deleted_objects_containers.append(dn)
146 self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc))
148 domaindns_zone = 'DC=DomainDnsZones,%s' % self.samdb.get_default_basedn()
149 forestdns_zone = 'DC=ForestDnsZones,%s' % self.samdb.get_root_basedn()
150 domain = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
151 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
152 base=self.samdb.get_partitions_dn(),
153 expression="(&(objectClass=crossRef)(ncName=%s))" % domaindns_zone)
155 self.dns_partitions.append((ldb.Dn(self.samdb, forestdns_zone), domain[0]))
157 forest = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
158 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
159 base=self.samdb.get_partitions_dn(),
160 expression="(&(objectClass=crossRef)(ncName=%s))" % forestdns_zone)
162 self.dns_partitions.append((ldb.Dn(self.samdb, domaindns_zone), forest[0]))
164 fsmo_dn = ldb.Dn(self.samdb, "CN=RID Manager$,CN=System," + self.samdb.domain_dn())
165 rid_master = get_fsmo_roleowner(self.samdb, fsmo_dn, "rid")
166 if ldb.Dn(self.samdb, self.samdb.get_dsServiceName()) == rid_master:
167 self.is_rid_master = True
169 self.is_rid_master = False
171 # To get your rid set
173 res = self.samdb.search(base=ldb.Dn(self.samdb, self.samdb.get_serverName()),
174 scope=ldb.SCOPE_BASE, attrs=["serverReference"])
175 # 2. Get server reference
176 self.server_ref_dn = ldb.Dn(self.samdb, res[0]['serverReference'][0])
179 res = self.samdb.search(base=self.server_ref_dn,
180 scope=ldb.SCOPE_BASE, attrs=['rIDSetReferences'])
181 if "rIDSetReferences" in res[0]:
182 self.rid_set_dn = ldb.Dn(self.samdb, res[0]['rIDSetReferences'][0])
184 self.rid_set_dn = None
186 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
187 '''perform a database check, returning the number of errors found'''
188 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
189 self.report('Checking %u objects' % len(res))
192 error_count += self.check_deleted_objects_containers()
194 self.attribute_or_class_ids = set()
197 self.dn_set.add(str(object.dn))
198 error_count += self.check_object(object.dn, attrs=attrs)
201 error_count += self.check_rootdse()
203 if error_count != 0 and not self.fix:
204 self.report("Please use --fix to fix these errors")
206 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
209 def check_deleted_objects_containers(self):
210 """This function only fixes conflicts on the Deleted Objects
211 containers, not the attributes"""
213 for nc in self.ncs_lacking_deleted_containers:
214 if nc == self.schema_dn:
217 self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
218 if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
221 dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
226 # If something already exists here, add a conflict
227 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
228 controls=["show_deleted:1", "extended_dn:1:1",
229 "show_recycled:1", "reveal_internals:0"])
231 guid = res[0].dn.get_extended_component("GUID")
232 conflict_dn = ldb.Dn(self.samdb,
233 "CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
234 conflict_dn.add_base(nc)
236 except ldb.LdbError, (enum, estr):
237 if enum == ldb.ERR_NO_SUCH_OBJECT:
240 self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
243 if conflict_dn is not None:
245 self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
246 except ldb.LdbError, (enum, estr):
247 self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
250 # Refresh wellKnownObjects links
251 res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
252 attrs=['wellKnownObjects'],
253 controls=["show_deleted:1", "extended_dn:0",
254 "show_recycled:1", "reveal_internals:0"])
256 self.report("wellKnownObjects was not found for NC %s" % nc)
259 # Prevent duplicate deleted objects containers just in case
260 wko = res[0]["wellKnownObjects"]
262 proposed_objectguid = None
264 dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
265 if self.is_deleted_objects_dn(dsdb_dn):
266 self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
267 # We really want to put this back in the same spot
268 # as the original one, so that on replication we
269 # merge, rather than conflict.
270 proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
273 if proposed_objectguid is not None:
274 guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
276 wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
277 listwko.append('%s:%s' % (wko_prefix, dn))
280 # Insert a brand new Deleted Objects container
281 self.samdb.add_ldif("""dn: %s
283 objectClass: container
284 description: Container for deleted objects
286 isCriticalSystemObject: TRUE
287 showInAdvancedViewOnly: TRUE
288 systemFlags: -1946157056%s""" % (dn, guid_suffix),
289 controls=["relax:0", "provision:0"])
291 delta = ldb.Message()
292 delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
293 delta["wellKnownObjects"] = ldb.MessageElement(listwko,
294 ldb.FLAG_MOD_REPLACE,
297 # Insert the link to the brand new container
298 if self.do_modify(delta, ["relax:0"],
299 "NC %s lacks Deleted Objects WKGUID" % nc,
301 self.report("Added %s well known guid link" % dn)
303 self.deleted_objects_containers.append(dn)
307 def report(self, msg):
308 '''print a message unless quiet is set'''
312 def confirm(self, msg, allow_all=False, forced=False):
313 '''confirm a change'''
320 return common.confirm(msg, forced=forced, allow_all=allow_all)
322 ################################################################
323 # a local confirm function with support for 'all'
324 def confirm_all(self, msg, all_attr):
325 '''confirm a change with support for "all" '''
328 if getattr(self, all_attr) == 'NONE':
330 if getattr(self, all_attr) == 'ALL':
336 c = common.confirm(msg, forced=forced, allow_all=True)
338 setattr(self, all_attr, 'ALL')
341 setattr(self, all_attr, 'NONE')
345 def do_delete(self, dn, controls, msg):
346 '''delete dn with optional verbose output'''
348 self.report("delete DN %s" % dn)
350 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
351 self.samdb.delete(dn, controls=controls)
352 except Exception, err:
353 if self.in_transaction:
354 raise CommandError("%s : %s" % (msg, err))
355 self.report("%s : %s" % (msg, err))
359 def do_modify(self, m, controls, msg, validate=True):
360 '''perform a modify with optional verbose output'''
362 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
364 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
365 self.samdb.modify(m, controls=controls, validate=validate)
366 except Exception, err:
367 if self.in_transaction:
368 raise CommandError("%s : %s" % (msg, err))
369 self.report("%s : %s" % (msg, err))
373 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
374 '''perform a modify with optional verbose output'''
376 self.report("""dn: %s
380 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
382 to_dn = to_rdn + to_base
383 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
384 self.samdb.rename(from_dn, to_dn, controls=controls)
385 except Exception, err:
386 if self.in_transaction:
387 raise CommandError("%s : %s" % (msg, err))
388 self.report("%s : %s" % (msg, err))
392 def get_attr_linkID_and_reverse_name(self, attrname):
393 if attrname in self.link_id_cache:
394 return self.link_id_cache[attrname]
395 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
397 revname = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
400 self.link_id_cache[attrname] = (linkID, revname)
401 return linkID, revname
403 def err_empty_attribute(self, dn, attrname):
404 '''fix empty attributes'''
405 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
406 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
407 self.report("Not fixing empty attribute %s" % attrname)
412 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
413 if self.do_modify(m, ["relax:0", "show_recycled:1"],
414 "Failed to remove empty attribute %s" % attrname, validate=False):
415 self.report("Removed empty attribute %s" % attrname)
417 def err_normalise_mismatch(self, dn, attrname, values):
418 '''fix attribute normalisation errors'''
419 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
422 normalised = self.samdb.dsdb_normalise_attributes(
423 self.samdb_schema, attrname, [val])
424 if len(normalised) != 1:
425 self.report("Unable to normalise value '%s'" % val)
426 mod_list.append((val, ''))
427 elif (normalised[0] != val):
428 self.report("value '%s' should be '%s'" % (val, normalised[0]))
429 mod_list.append((val, normalised[0]))
430 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
431 self.report("Not fixing attribute %s" % attrname)
436 for i in range(0, len(mod_list)):
437 (val, nval) = mod_list[i]
438 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
440 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
443 if self.do_modify(m, ["relax:0", "show_recycled:1"],
444 "Failed to normalise attribute %s" % attrname,
446 self.report("Normalised attribute %s" % attrname)
448 def err_normalise_mismatch_replace(self, dn, attrname, values):
449 '''fix attribute normalisation errors'''
450 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
451 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
452 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
453 if list(normalised) == values:
455 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
456 self.report("Not fixing attribute '%s'" % attrname)
461 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
463 if self.do_modify(m, ["relax:0", "show_recycled:1"],
464 "Failed to normalise attribute %s" % attrname,
466 self.report("Normalised attribute %s" % attrname)
468 def err_duplicate_values(self, dn, attrname, dup_values, values):
469 '''fix attribute normalisation errors'''
470 self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
471 self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
472 if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
473 self.report("Not fixing attribute '%s'" % attrname)
478 m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
480 if self.do_modify(m, ["relax:0", "show_recycled:1"],
481 "Failed to remove duplicate value on attribute %s" % attrname,
483 self.report("Removed duplicate value on attribute %s" % attrname)
485 def is_deleted_objects_dn(self, dsdb_dn):
486 '''see if a dsdb_Dn is the special Deleted Objects DN'''
487 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
489 def err_missing_objectclass(self, dn):
490 """handle object without objectclass"""
491 self.report("ERROR: missing objectclass in object %s. If you have another working DC, please run 'samba-tool drs replicate --full-sync --local <destinationDC> <sourceDC> %s'" % (dn, self.samdb.get_nc_root(dn)))
492 if not self.confirm_all("If you cannot re-sync from another DC, do you wish to delete object '%s'?" % dn, 'fix_all_missing_objectclass'):
493 self.report("Not deleting object with missing objectclass '%s'" % dn)
495 if self.do_delete(dn, ["relax:0"],
496 "Failed to remove DN %s" % dn):
497 self.report("Removed DN %s" % dn)
499 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn, remove_plausible=False):
500 """handle a DN pointing to a deleted object"""
501 if not remove_plausible:
502 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
503 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
504 if not self.confirm_all('Remove DN link?', 'remove_implausible_deleted_DN_links'):
505 self.report("Not removing")
508 self.report("WARNING: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
509 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
510 if not self.confirm_all('Remove stale DN link?', 'remove_plausible_deleted_DN_links'):
511 self.report("Not removing")
516 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
517 if self.do_modify(m, ["show_recycled:1",
518 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
519 "Failed to remove deleted DN attribute %s" % attrname):
520 self.report("Removed deleted DN on attribute %s" % attrname)
522 def err_missing_target_dn_or_GUID(self, dn, attrname, val, dsdb_dn):
523 """handle a missing target DN (if specified, GUID form can't be found,
524 and otherwise DN string form can't be found)"""
525 # check if its a backlink
526 linkID, _ = self.get_attr_linkID_and_reverse_name(attrname)
527 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
529 linkID, reverse_link_name \
530 = self.get_attr_linkID_and_reverse_name(attrname)
531 if reverse_link_name is not None:
532 self.report("WARNING: no target object found for GUID "
533 "component for one-way forward link "
535 "%s - %s" % (attrname, dn, val))
536 self.report("Not removing dangling forward link")
539 nc_root = self.samdb.get_nc_root(dn)
540 target_nc_root = self.samdb.get_nc_root(dsdb_dn.dn)
541 if nc_root != target_nc_root:
542 # We don't bump the error count as Samba produces these
543 # in normal operation
544 self.report("WARNING: no target object found for GUID "
545 "component for cross-partition link "
547 "%s - %s" % (attrname, dn, val))
548 self.report("Not removing dangling one-way "
549 "cross-partition link "
550 "(we might be mid-replication)")
553 # Due to our link handling one-way links pointing to
554 # missing objects are plausible.
556 # We don't bump the error count as Samba produces these
557 # in normal operation
558 self.report("WARNING: no target object found for GUID "
559 "component for DN value %s in object "
560 "%s - %s" % (attrname, dn, val))
561 self.err_deleted_dn(dn, attrname, val,
562 dsdb_dn, dsdb_dn, True)
565 # We bump the error count here, as we should have deleted this
566 self.report("ERROR: no target object found for GUID "
567 "component for link %s in object "
568 "%s - %s" % (attrname, dn, val))
569 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn, False)
572 def err_missing_dn_GUID_component(self, dn, attrname, val, dsdb_dn, errstr):
573 """handle a missing GUID extended DN component"""
574 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
575 controls=["extended_dn:1:1", "show_recycled:1"]
577 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
578 attrs=[], controls=controls)
579 except ldb.LdbError, (enum, estr):
580 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
581 if enum != ldb.ERR_NO_SUCH_OBJECT:
583 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
586 self.report("unable to find object for DN %s" % dsdb_dn.dn)
587 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
589 dsdb_dn.dn = res[0].dn
591 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
592 self.report("Not fixing %s" % errstr)
596 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
597 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
599 if self.do_modify(m, ["show_recycled:1"],
600 "Failed to fix %s on attribute %s" % (errstr, attrname)):
601 self.report("Fixed %s on attribute %s" % (errstr, attrname))
603 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
604 """handle an incorrect binary DN component"""
605 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
606 controls=["extended_dn:1:1", "show_recycled:1"]
608 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
609 self.report("Not fixing %s" % errstr)
613 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
614 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
616 if self.do_modify(m, ["show_recycled:1"],
617 "Failed to fix %s on attribute %s" % (errstr, attrname)):
618 self.report("Fixed %s on attribute %s" % (errstr, attrname))
620 def err_dn_string_component_old(self, dn, attrname, val, dsdb_dn, correct_dn):
621 """handle a DN string being incorrect"""
622 self.report("NOTE: old (due to rename or delete) DN string component for %s in object %s - %s" % (attrname, dn, val))
623 dsdb_dn.dn = correct_dn
625 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
626 'fix_all_old_dn_string_component_mismatch'):
627 self.report("Not fixing old string component")
631 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
632 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
633 if self.do_modify(m, ["show_recycled:1"],
634 "Failed to fix old DN string on attribute %s" % (attrname)):
635 self.report("Fixed old DN string on attribute %s" % (attrname))
637 def err_dn_component_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, mismatch_type):
638 """handle a DN string being incorrect"""
639 self.report("ERROR: incorrect DN %s component for %s in object %s - %s" % (mismatch_type, attrname, dn, val))
640 dsdb_dn.dn = correct_dn
642 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
643 'fix_all_%s_dn_component_mismatch' % mismatch_type):
644 self.report("Not fixing %s component mismatch" % mismatch_type)
648 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
649 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
650 if self.do_modify(m, ["show_recycled:1"],
651 "Failed to fix incorrect DN %s on attribute %s" % (mismatch_type, attrname)):
652 self.report("Fixed incorrect DN %s on attribute %s" % (mismatch_type, attrname))
654 def err_unknown_attribute(self, obj, attrname):
655 '''handle an unknown attribute error'''
656 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
657 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
658 self.report("Not removing %s" % attrname)
662 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
663 if self.do_modify(m, ["relax:0", "show_recycled:1"],
664 "Failed to remove unknown attribute %s" % attrname):
665 self.report("Removed unknown attribute %s" % (attrname))
667 def err_undead_linked_attribute(self, obj, attrname, val):
668 '''handle a link that should not be there on a deleted object'''
669 self.report("ERROR: linked attribute '%s' to '%s' is present on "
670 "deleted object %s" % (attrname, val, obj.dn))
671 if not self.confirm_all('Remove linked attribute %s' % attrname, 'fix_undead_linked_attributes'):
672 self.report("Not removing linked attribute %s" % attrname)
676 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
678 if self.do_modify(m, ["show_recycled:1", "show_deleted:1", "reveal_internals:0",
679 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
680 "Failed to delete forward link %s" % attrname):
681 self.report("Fixed undead forward link %s" % (attrname))
683 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
684 '''handle a missing backlink value'''
685 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
686 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
687 self.report("Not fixing missing backlink %s" % backlink_name)
691 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, backlink_name)
692 if self.do_modify(m, ["show_recycled:1", "relax:0"],
693 "Failed to fix missing backlink %s" % backlink_name):
694 self.report("Fixed missing backlink %s" % (backlink_name))
696 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
697 '''handle a incorrect RMD_FLAGS value'''
698 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
699 self.report("ERROR: incorrect RMD_FLAGS value %u for attribute '%s' in %s for link %s" % (rmd_flags, attrname, obj.dn, revealed_dn.dn.extended_str()))
700 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
701 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
705 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
706 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
707 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
708 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
710 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
711 '''handle a orphaned backlink value'''
712 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
713 if not self.confirm_all('Remove orphaned backlink %s' % attrname, 'fix_all_orphaned_backlinks'):
714 self.report("Not removing orphaned backlink %s" % attrname)
718 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
719 if self.do_modify(m, ["show_recycled:1", "relax:0"],
720 "Failed to fix orphaned backlink %s" % attrname):
721 self.report("Fixed orphaned backlink %s" % (attrname))
723 def err_no_fsmoRoleOwner(self, obj):
724 '''handle a missing fSMORoleOwner'''
725 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
726 res = self.samdb.search("",
727 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
729 serviceName = res[0]["dsServiceName"][0]
730 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
731 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
735 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
736 if self.do_modify(m, [],
737 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
738 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
740 def err_missing_parent(self, obj):
741 '''handle a missing parent'''
742 self.report("ERROR: parent object not found for %s" % (obj.dn))
743 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
744 self.report('Not moving object %s into LostAndFound' % (obj.dn))
747 keep_transaction = False
748 self.samdb.transaction_start()
750 nc_root = self.samdb.get_nc_root(obj.dn);
751 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
752 new_dn = ldb.Dn(self.samdb, str(obj.dn))
753 new_dn.remove_base_components(len(new_dn) - 1)
754 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
755 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
756 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
760 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
762 if self.do_modify(m, [],
763 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
764 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
765 keep_transaction = True
767 self.samdb.transaction_cancel()
771 self.samdb.transaction_commit()
773 self.samdb.transaction_cancel()
775 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
776 '''handle a wrong dn'''
778 new_rdn = ldb.Dn(self.samdb, str(new_dn))
779 new_rdn.remove_base_components(len(new_rdn) - 1)
780 new_parent = new_dn.parent()
783 if rdn_val != name_val:
784 attributes += "%s=%r " % (rdn_attr, rdn_val)
785 attributes += "name=%r" % (name_val)
787 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
788 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
789 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
792 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
793 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
794 self.report("Renamed %s into %s" % (obj.dn, new_dn))
796 def err_wrong_instancetype(self, obj, calculated_instancetype):
797 '''handle a wrong instanceType'''
798 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
799 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
800 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
805 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
806 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
807 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
808 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
810 def err_short_userParameters(self, obj, attrname, value):
811 # This is a truncated userParameters due to a pre 4.1 replication bug
812 self.report("ERROR: incorrect userParameters value on object %s. If you have another working DC that does not give this warning, please run 'samba-tool drs replicate --full-sync --local <destinationDC> <sourceDC> %s'" % (obj.dn, self.samdb.get_nc_root(obj.dn)))
814 def err_base64_userParameters(self, obj, attrname, value):
815 '''handle a wrong userParameters'''
816 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
817 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
818 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
823 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
824 if self.do_modify(m, [],
825 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
826 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
828 def err_utf8_userParameters(self, obj, attrname, value):
829 '''handle a wrong userParameters'''
830 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
831 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
832 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
837 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
838 ldb.FLAG_MOD_REPLACE, 'userParameters')
839 if self.do_modify(m, [],
840 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
841 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
843 def err_doubled_userParameters(self, obj, attrname, value):
844 '''handle a wrong userParameters'''
845 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
846 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
847 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
852 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
853 ldb.FLAG_MOD_REPLACE, 'userParameters')
854 if self.do_modify(m, [],
855 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
856 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
858 def err_odd_userParameters(self, obj, attrname):
859 # This is a truncated userParameters due to a pre 4.1 replication bug
860 self.report("ERROR: incorrect userParameters value on object %s (odd length). If you have another working DC that does not give this warning, please run 'samba-tool drs replicate --full-sync --local <destinationDC> <sourceDC> %s'" % (obj.dn, self.samdb.get_nc_root(obj.dn)))
862 def find_revealed_link(self, dn, attrname, guid):
863 '''return a revealed link in an object'''
864 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
865 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
866 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
867 for val in res[0][attrname]:
868 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
869 guid2 = dsdb_dn.dn.get_extended_component("GUID")
874 def check_dn(self, obj, attrname, syntax_oid):
875 '''check a DN attribute for correctness'''
877 obj_guid = obj['objectGUID'][0]
879 for val in obj[attrname]:
880 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
882 # all DNs should have a GUID component
883 guid = dsdb_dn.dn.get_extended_component("GUID")
886 self.err_missing_dn_GUID_component(obj.dn, attrname, val, dsdb_dn,
890 guidstr = str(misc.GUID(guid))
891 attrs = ['isDeleted', 'replPropertyMetaData']
893 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
894 fixing_msDS_HasInstantiatedNCs = True
895 attrs.append("instanceType")
897 fixing_msDS_HasInstantiatedNCs = False
899 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
900 if reverse_link_name is not None:
901 attrs.append(reverse_link_name)
903 # check its the right GUID
905 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
906 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1",
909 except ldb.LdbError, (enum, estr):
910 if enum != ldb.ERR_NO_SUCH_OBJECT:
913 # We don't always want to
914 error_count += self.err_missing_target_dn_or_GUID(obj.dn,
920 if fixing_msDS_HasInstantiatedNCs:
921 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
922 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
924 if str(dsdb_dn) != val:
926 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
929 # now we have two cases - the source object might or might not be deleted
930 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
931 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
934 if is_deleted and not obj.dn in self.deleted_objects_containers and linkID:
935 # A fully deleted object should not have any linked
936 # attributes. (MS-ADTS 3.1.1.5.5.1.1 Tombstone
937 # Requirements and 3.1.1.5.5.1.3 Recycled-Object
939 self.err_undead_linked_attribute(obj, attrname, val)
942 elif target_is_deleted and not self.is_deleted_objects_dn(dsdb_dn) and linkID:
943 # the target DN is not allowed to be deleted, unless the target DN is the
944 # special Deleted Objects container
946 local_usn = dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN")
948 if 'replPropertyMetaData' in res[0]:
949 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
950 str(res[0]['replPropertyMetadata']))
952 for o in repl.ctr.array:
953 if o.attid == drsuapi.DRSUAPI_ATTID_isDeleted:
954 deleted_usn = o.local_usn
955 if deleted_usn >= int(local_usn):
956 # If the object was deleted after the link
957 # was last modified then, clean it up here
962 self.err_deleted_dn(obj.dn, attrname,
963 val, dsdb_dn, res[0].dn, True)
966 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn, False)
969 # We should not check for incorrect
970 # components on deleted links, as these are allowed to
971 # go stale (we just need the GUID, not the name)
972 rmd_blob = dsdb_dn.dn.get_extended_component("RMD_FLAGS")
973 if rmd_blob is not None:
974 rmd_flags = int(rmd_blob)
978 # assert the DN matches in string form, where a reverse
979 # link exists, otherwise (below) offer to fix it as a non-error.
980 # The string form is essentially only kept for forensics,
981 # as we always re-resolve by GUID in normal operations.
982 if reverse_link_name is not None:
983 if str(res[0].dn) != str(dsdb_dn.dn):
985 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
989 if res[0].dn.get_extended_component("GUID") != dsdb_dn.dn.get_extended_component("GUID"):
991 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
995 if res[0].dn.get_extended_component("SID") != dsdb_dn.dn.get_extended_component("SID"):
997 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1001 # Now we have checked the GUID and SID, offer to fix old
1002 # DN strings as a non-error (for forward links with no
1003 # backlink). Samba does not maintain this string
1004 # otherwise, so we don't increment error_count.
1005 if reverse_link_name is None:
1006 if str(res[0].dn) != str(dsdb_dn.dn):
1007 self.err_dn_string_component_old(obj.dn, attrname, val, dsdb_dn,
1011 # check the reverse_link is correct if there should be one
1013 if reverse_link_name in res[0]:
1014 for v in res[0][reverse_link_name]:
1015 v_guid = dsdb_Dn(self.samdb, v).dn.get_extended_component("GUID")
1016 if v_guid == obj_guid:
1018 if match_count != 1:
1019 reverse_syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(reverse_link_name)
1020 if syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN or reverse_syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN:
1022 # Forward binary multi-valued linked attribute
1024 for w in obj[attrname]:
1025 w_guid = dsdb_Dn(self.samdb, w).dn.get_extended_component("GUID")
1029 if match_count == forward_count:
1034 # Add or remove the missing number of backlinks
1035 diff_count = forward_count - match_count
1037 # Loop until the difference between the forward and
1038 # the backward links is resolved.
1039 while diff_count != 0:
1041 # self.err_missing_backlink(obj, attrname,
1042 # obj.dn.extended_str(),
1043 # reverse_link_name,
1046 # TODO no method to fix these right now
1047 self.report("ERROR: Can't fix missing "
1048 "multi-valued backlinks on %s" % str(dsdb_dn.dn))
1051 self.err_orphaned_backlink(res[0], reverse_link_name,
1052 obj.dn.extended_str(), attrname,
1057 # If there's a backward link on binary multi-valued linked attribute,
1058 # let the check on the forward link remedy the value.
1059 # UNLESS, there is no forward link detected.
1060 if match_count == 0:
1061 self.err_orphaned_backlink(obj, attrname,
1062 val, reverse_link_name,
1069 # Backlink exists, but forward link does not
1070 # Delete the hanging backlink
1071 self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
1073 # Forward link exists, but backlink does not
1074 # Add the missing backlink (if the target object is not Deleted Objects?)
1075 if not target_is_deleted:
1076 self.err_missing_backlink(obj, attrname, obj.dn.extended_str(), reverse_link_name, dsdb_dn.dn)
1085 def get_originating_time(self, val, attid):
1086 '''Read metadata properties and return the originating time for
1087 a given attributeId.
1089 :return: the originating time or 0 if not found
1092 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1095 for o in repl.ctr.array:
1096 if o.attid == attid:
1097 return o.originating_change_time
1101 def process_metadata(self, dn, val):
1102 '''Read metadata properties and list attributes in it.
1103 raises KeyError if the attid is unknown.'''
1106 wrong_attids = set()
1108 in_schema_nc = dn.is_child_of(self.schema_dn)
1110 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1113 for o in repl.ctr.array:
1114 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1115 set_att.add(att.lower())
1116 list_attid.append(o.attid)
1117 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
1118 is_schema_nc=in_schema_nc)
1119 if correct_attid != o.attid:
1120 wrong_attids.add(o.attid)
1122 return (set_att, list_attid, wrong_attids)
1125 def fix_metadata(self, obj, attr):
1126 '''re-write replPropertyMetaData elements for a single attribute for a
1127 object. This is used to fix missing replPropertyMetaData elements'''
1128 guid_str = str(ndr_unpack(misc.GUID, obj['objectGUID'][0]))
1129 dn = ldb.Dn(self.samdb, "<GUID=%s>" % guid_str)
1130 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
1131 controls = ["search_options:1:2",
1134 nmsg = ldb.Message()
1136 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
1137 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
1138 "Failed to fix metadata for attribute %s" % attr):
1139 self.report("Fixed metadata for attribute %s" % attr)
1141 def ace_get_effective_inherited_type(self, ace):
1142 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
1146 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
1148 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
1150 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
1152 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
1158 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
1161 return str(ace.object.inherited_type)
1163 def lookup_class_schemaIDGUID(self, cls):
1164 if cls in self.class_schemaIDGUID:
1165 return self.class_schemaIDGUID[cls]
1167 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
1168 res = self.samdb.search(base=self.schema_dn,
1170 attrs=["schemaIDGUID"])
1171 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
1173 self.class_schemaIDGUID[cls] = t
1176 def process_sd(self, dn, obj):
1177 sd_attr = "nTSecurityDescriptor"
1178 sd_val = obj[sd_attr]
1180 sd = ndr_unpack(security.descriptor, str(sd_val))
1182 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
1184 # we don't fix deleted objects
1187 sd_clean = security.descriptor()
1188 sd_clean.owner_sid = sd.owner_sid
1189 sd_clean.group_sid = sd.group_sid
1190 sd_clean.type = sd.type
1191 sd_clean.revision = sd.revision
1194 last_inherited_type = None
1197 if sd.sacl is not None:
1199 for i in range(0, len(aces)):
1202 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1203 sd_clean.sacl_add(ace)
1206 t = self.ace_get_effective_inherited_type(ace)
1210 if last_inherited_type is not None:
1211 if t != last_inherited_type:
1212 # if it inherited from more than
1213 # one type it's very likely to be broken
1215 # If not the recalculation will calculate
1220 last_inherited_type = t
1223 if sd.dacl is not None:
1225 for i in range(0, len(aces)):
1228 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1229 sd_clean.dacl_add(ace)
1232 t = self.ace_get_effective_inherited_type(ace)
1236 if last_inherited_type is not None:
1237 if t != last_inherited_type:
1238 # if it inherited from more than
1239 # one type it's very likely to be broken
1241 # If not the recalculation will calculate
1246 last_inherited_type = t
1249 return (sd_clean, sd)
1251 if last_inherited_type is None:
1257 cls = obj["objectClass"][-1]
1262 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1263 attrs=["isDeleted", "objectClass"],
1264 controls=["show_recycled:1"])
1266 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
1268 # we don't fix deleted objects
1270 cls = o["objectClass"][-1]
1272 t = self.lookup_class_schemaIDGUID(cls)
1274 if t != last_inherited_type:
1276 return (sd_clean, sd)
1281 def err_wrong_sd(self, dn, sd, sd_broken):
1282 '''re-write the SD due to incorrect inherited ACEs'''
1283 sd_attr = "nTSecurityDescriptor"
1284 sd_val = ndr_pack(sd)
1285 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1287 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
1288 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
1291 nmsg = ldb.Message()
1293 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1294 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1295 "Failed to fix attribute %s" % sd_attr):
1296 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1298 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
1299 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
1300 sd_attr = "nTSecurityDescriptor"
1301 sd_val = ndr_pack(sd)
1302 sd_old_val = ndr_pack(sd_old)
1303 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1304 if sd.owner_sid is not None:
1305 sd_flags |= security.SECINFO_OWNER
1306 if sd.group_sid is not None:
1307 sd_flags |= security.SECINFO_GROUP
1309 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
1310 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
1315 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1316 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
1317 "Failed to reset attribute %s" % sd_attr):
1318 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1320 def err_missing_sd_owner(self, dn, sd):
1321 '''re-write the SD due to a missing owner or group'''
1322 sd_attr = "nTSecurityDescriptor"
1323 sd_val = ndr_pack(sd)
1324 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
1326 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
1327 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
1330 nmsg = ldb.Message()
1332 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1334 # By setting the session_info to admin_session_info and
1335 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
1336 # flags we cause the descriptor module to set the correct
1337 # owner and group on the SD, replacing the None/NULL values
1338 # for owner_sid and group_sid currently present.
1340 # The admin_session_info matches that used in provision, and
1341 # is the best guess we can make for an existing object that
1342 # hasn't had something specifically set.
1344 # This is important for the dns related naming contexts.
1345 self.samdb.set_session_info(self.admin_session_info)
1346 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1347 "Failed to fix metadata for attribute %s" % sd_attr):
1348 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1349 self.samdb.set_session_info(self.system_session_info)
1352 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
1353 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1354 str(repl_meta_data))
1358 # Search for a zero invocationID
1359 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1363 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
1364 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
1365 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
1366 % (dn, o.attid, o.version,
1367 time.ctime(samba.nttime2unix(o.originating_change_time)),
1368 self.samdb.get_invocation_id()))
1373 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
1374 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1375 str(repl_meta_data))
1377 now = samba.unix2nttime(int(time.time()))
1380 # Search for a zero invocationID
1381 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1385 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
1386 o.version = o.version + 1
1387 o.originating_change_time = now
1388 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
1389 o.originating_usn = seq
1393 replBlob = ndr_pack(repl)
1397 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
1398 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
1399 self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
1402 nmsg = ldb.Message()
1404 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1405 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1406 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
1407 "Failed to fix attribute %s" % attr):
1408 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1411 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1412 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1413 str(repl_meta_data))
1416 # Search for an invalid attid
1418 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1420 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1424 def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
1425 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1426 str(repl_meta_data))
1430 remove_attid = set()
1433 in_schema_nc = dn.is_child_of(self.schema_dn)
1436 # Sort the array, except for the last element. This strange
1437 # construction, creating a new list, due to bugs in samba's
1438 # array handling in IDL generated objects.
1439 ctr.array = sorted(ctr.array[:], key=lambda o: o.attid)
1440 # Now walk it in reverse, so we see the low (and so incorrect,
1441 # the correct values are above 0x80000000) values first and
1442 # remove the 'second' value we see.
1443 for o in reversed(ctr.array):
1444 print "%s: 0x%08x" % (dn, o.attid)
1445 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1446 if att.lower() in set_att:
1447 self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
1448 if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
1449 % (attr, dn, o.attid, att, hash_att[att].attid),
1450 'fix_replmetadata_duplicate_attid'):
1451 self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
1452 % (o.attid, att, attr, dn))
1455 remove_attid.add(o.attid)
1456 # We want to set the metadata for the most recent
1457 # update to have been applied locally, that is the metadata
1458 # matching the (eg string) value in the attribute
1459 if o.local_usn > hash_att[att].local_usn:
1460 # This is always what we would have sent over DRS,
1461 # because the DRS server will have sent the
1462 # msDS-IntID, but with the values from both
1463 # attribute entries.
1464 hash_att[att].version = o.version
1465 hash_att[att].originating_change_time = o.originating_change_time
1466 hash_att[att].originating_invocation_id = o.originating_invocation_id
1467 hash_att[att].originating_usn = o.originating_usn
1468 hash_att[att].local_usn = o.local_usn
1470 # Do not re-add the value to the set or overwrite the hash value
1474 set_att.add(att.lower())
1476 # Generate a real list we can sort on properly
1477 new_list = [o for o in ctr.array if o.attid not in remove_attid]
1479 if (len(wrong_attids) > 0):
1481 if o.attid in wrong_attids:
1482 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1483 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
1484 self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
1485 if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
1486 % (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
1487 self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
1488 % (o.attid, correct_attid, att, attr, dn))
1491 o.attid = correct_attid
1493 # Sort the array, (we changed the value so must re-sort)
1494 new_list[:] = sorted(new_list[:], key=lambda o: o.attid)
1496 # If we did not already need to fix it, then ask about sorting
1498 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1499 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1500 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1501 self.report('Not fixing %s on %s\n' % (attr, dn))
1504 # The actual sort done is done at the top of the function
1506 ctr.count = len(new_list)
1507 ctr.array = new_list
1508 replBlob = ndr_pack(repl)
1510 nmsg = ldb.Message()
1512 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1513 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1514 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1515 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1516 "Failed to fix attribute %s" % attr):
1517 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1520 def is_deleted_deleted_objects(self, obj):
1522 if "description" not in obj:
1523 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1525 if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
1526 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1528 if "objectCategory" not in obj:
1529 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1531 if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
1532 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1534 if "isRecycled" in obj:
1535 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1537 if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
1538 self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
1540 if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
1541 obj['objectClass'][0] != 'top' or
1542 obj['objectClass'][1] != 'container'):
1543 self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
1545 if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
1546 self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
1550 def err_deleted_deleted_objects(self, obj):
1551 nmsg = ldb.Message()
1552 nmsg.dn = dn = obj.dn
1554 if "description" not in obj:
1555 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1556 if "showInAdvancedViewOnly" not in obj:
1557 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1558 if "objectCategory" not in obj:
1559 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1560 if "isCriticalSystemObject" not in obj:
1561 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1562 if "isRecycled" in obj:
1563 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1565 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1566 nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
1567 nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
1569 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1570 % (dn), 'fix_deleted_deleted_objects'):
1571 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1574 if self.do_modify(nmsg, ["relax:0"],
1575 "Failed to fix Deleted Objects container %s" % dn):
1576 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1578 def err_replica_locations(self, obj, cross_ref, attr):
1579 nmsg = ldb.Message()
1581 target = self.samdb.get_dsServiceName()
1583 if self.samdb.am_rodc():
1584 self.report('Not fixing %s for the RODC' % (attr, obj.dn))
1587 if not self.confirm_all('Add yourself to the replica locations for %s?'
1588 % (obj.dn), 'fix_replica_locations'):
1589 self.report('Not fixing missing/incorrect attributes on %s\n' % (obj.dn))
1592 nmsg[attr] = ldb.MessageElement(target, ldb.FLAG_MOD_ADD, attr)
1593 if self.do_modify(nmsg, [], "Failed to add %s for %s" % (attr, obj.dn)):
1594 self.report("Fixed %s for %s" % (attr, obj.dn))
1596 def is_fsmo_role(self, dn):
1597 if dn == self.samdb.domain_dn:
1599 if dn == self.infrastructure_dn:
1601 if dn == self.naming_dn:
1603 if dn == self.schema_dn:
1605 if dn == self.rid_dn:
1610 def calculate_instancetype(self, dn):
1612 nc_root = self.samdb.get_nc_root(dn)
1614 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1616 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1617 except ldb.LdbError, (enum, estr):
1618 if enum != ldb.ERR_NO_SUCH_OBJECT:
1621 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1623 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1624 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1628 def get_wellknown_sd(self, dn):
1629 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1631 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1632 return ndr_unpack(security.descriptor,
1633 descriptor_fn(domain_sid,
1634 name_map=self.name_map))
1638 def check_object(self, dn, attrs=['*']):
1639 '''check one object'''
1641 self.report("Checking object %s" % dn)
1643 # If we modify the pass-by-reference attrs variable, then we get a
1644 # replPropertyMetadata for every object that we check.
1646 if "dn" in map(str.lower, attrs):
1647 attrs.append("name")
1648 if "distinguishedname" in map(str.lower, attrs):
1649 attrs.append("name")
1650 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1651 attrs.append("name")
1652 if 'name' in map(str.lower, attrs):
1653 attrs.append(dn.get_rdn_name())
1654 attrs.append("isDeleted")
1655 attrs.append("systemFlags")
1657 attrs.append("replPropertyMetaData")
1659 attrs.append("objectGUID")
1663 sd_flags |= security.SECINFO_OWNER
1664 sd_flags |= security.SECINFO_GROUP
1665 sd_flags |= security.SECINFO_DACL
1666 sd_flags |= security.SECINFO_SACL
1668 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1673 "sd_flags:1:%d" % sd_flags,
1674 "reveal_internals:0",
1677 except ldb.LdbError, (enum, estr):
1678 if enum == ldb.ERR_NO_SUCH_OBJECT:
1679 if self.in_transaction:
1680 self.report("ERROR: Object %s disappeared during check" % dn)
1685 self.report("ERROR: Object %s failed to load during check" % dn)
1689 set_attrs_from_md = set()
1690 set_attrs_seen = set()
1691 got_repl_property_meta_data = False
1692 got_objectclass = False
1694 nc_dn = self.samdb.get_nc_root(obj.dn)
1696 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1697 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1699 # We have no deleted objects DN for schema, and we check for this above for the other
1701 deleted_objects_dn = None
1704 object_rdn_attr = None
1705 object_rdn_val = None
1710 for attrname in obj:
1711 if attrname == 'dn' or attrname == "distinguishedName":
1714 if str(attrname).lower() == 'objectclass':
1715 got_objectclass = True
1717 if str(attrname).lower() == "name":
1718 if len(obj[attrname]) != 1:
1720 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1721 (len(obj[attrname]), attrname, str(obj.dn)))
1723 name_val = obj[attrname][0]
1725 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1726 object_rdn_attr = attrname
1727 if len(obj[attrname]) != 1:
1729 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1730 (len(obj[attrname]), attrname, str(obj.dn)))
1732 object_rdn_val = obj[attrname][0]
1734 if str(attrname).lower() == 'isdeleted':
1735 if obj[attrname][0] != "FALSE":
1738 if str(attrname).lower() == 'systemflags':
1739 systemFlags = int(obj[attrname][0])
1741 if str(attrname).lower() == 'replpropertymetadata':
1742 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1744 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1745 # We don't continue, as we may also have other fixes for this attribute
1746 # based on what other attributes we see.
1749 (set_attrs_from_md, list_attid_from_md, wrong_attids) \
1750 = self.process_metadata(dn, obj[attrname])
1753 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1756 if len(set_attrs_from_md) < len(list_attid_from_md) \
1757 or len(wrong_attids) > 0 \
1758 or sorted(list_attid_from_md) != list_attid_from_md:
1760 self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
1763 # Here we check that the first attid is 0
1765 if list_attid_from_md[0] != 0:
1767 self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
1768 (attrname, str(dn)))
1770 got_repl_property_meta_data = True
1773 if str(attrname).lower() == 'ntsecuritydescriptor':
1774 (sd, sd_broken) = self.process_sd(dn, obj)
1775 if sd_broken is not None:
1776 self.err_wrong_sd(dn, sd, sd_broken)
1780 if sd.owner_sid is None or sd.group_sid is None:
1781 self.err_missing_sd_owner(dn, sd)
1785 if self.reset_well_known_acls:
1787 well_known_sd = self.get_wellknown_sd(dn)
1791 current_sd = ndr_unpack(security.descriptor,
1792 str(obj[attrname][0]))
1794 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1796 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1801 if str(attrname).lower() == 'objectclass':
1802 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
1803 # Do not consider the attribute incorrect if:
1804 # - The sorted (alphabetically) list is the same, inclding case
1805 # - The first and last elements are the same
1807 # This avoids triggering an error due to
1808 # non-determinism in the sort routine in (at least)
1809 # 4.3 and earlier, and the fact that any AUX classes
1810 # in these attributes are also not sorted when
1811 # imported from Windows (they are just in the reverse
1812 # order of last set)
1813 if sorted(normalised) != sorted(obj[attrname]) \
1814 or normalised[0] != obj[attrname][0] \
1815 or normalised[-1] != obj[attrname][-1]:
1816 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1820 if str(attrname).lower() == 'userparameters':
1821 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1823 self.err_short_userParameters(obj, attrname, obj[attrname])
1826 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1827 # This is the correct, normal prefix
1830 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1831 # this is the typical prefix from a windows migration
1833 self.err_base64_userParameters(obj, attrname, obj[attrname])
1836 elif obj[attrname][0][1] != '\x00' and obj[attrname][0][3] != '\x00' and obj[attrname][0][5] != '\x00' and obj[attrname][0][7] != '\x00' and obj[attrname][0][9] != '\x00':
1837 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1839 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1842 elif len(obj[attrname][0]) % 2 != 0:
1843 # This is a value that isn't even in length
1845 self.err_odd_userParameters(obj, attrname, obj[attrname])
1848 elif obj[attrname][0][1] == '\x00' and obj[attrname][0][2] == '\x00' and obj[attrname][0][3] == '\x00' and obj[attrname][0][4] != '\x00' and obj[attrname][0][5] == '\x00':
1849 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1851 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1854 if attrname.lower() == 'attributeid' or attrname.lower() == 'governsid':
1855 if obj[attrname][0] in self.attribute_or_class_ids:
1857 self.report('Error: %s %s on %s already exists as an attributeId or governsId'
1858 % (attrname, obj.dn, obj[attrname][0]))
1860 self.attribute_or_class_ids.add(obj[attrname][0])
1862 # check for empty attributes
1863 for val in obj[attrname]:
1865 self.err_empty_attribute(dn, attrname)
1869 # get the syntax oid for the attribute, so we can can have
1870 # special handling for some specific attribute types
1872 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1873 except Exception, msg:
1874 self.err_unknown_attribute(obj, attrname)
1878 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
1880 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1881 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1882 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1884 set_attrs_seen.add(str(attrname).lower())
1886 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1887 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1888 # it's some form of DN, do specialised checking on those
1889 error_count += self.check_dn(obj, attrname, syntax_oid)
1893 # check for incorrectly normalised attributes
1894 for val in obj[attrname]:
1895 values.add(str(val))
1897 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
1898 if len(normalised) != 1 or normalised[0] != val:
1899 self.err_normalise_mismatch(dn, attrname, obj[attrname])
1903 if len(obj[attrname]) != len(values):
1904 self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
1908 if str(attrname).lower() == "instancetype":
1909 calculated_instancetype = self.calculate_instancetype(dn)
1910 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
1912 self.err_wrong_instancetype(obj, calculated_instancetype)
1914 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
1916 self.err_missing_objectclass(dn)
1918 if ("*" in attrs or "name" in map(str.lower, attrs)):
1919 if name_val is None:
1921 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
1922 if object_rdn_attr is None:
1924 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
1926 if name_val is not None:
1929 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
1930 parent_dn = deleted_objects_dn
1931 if parent_dn is None:
1932 parent_dn = obj.dn.parent()
1933 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
1934 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
1936 if obj.dn == deleted_objects_dn:
1937 expected_dn = obj.dn
1939 if expected_dn != obj.dn:
1941 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
1942 elif obj.dn.get_rdn_value() != object_rdn_val:
1944 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
1947 if got_repl_property_meta_data:
1948 if obj.dn == deleted_objects_dn:
1949 isDeletedAttId = 131120
1950 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
1952 expectedTimeDo = 2650466015990000000
1953 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
1954 if originating != expectedTimeDo:
1955 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
1956 nmsg = ldb.Message()
1958 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1960 self.samdb.modify(nmsg, controls=["provision:0"])
1963 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
1965 for att in set_attrs_seen.difference(set_attrs_from_md):
1967 self.report("On object %s" % dn)
1970 self.report("ERROR: Attribute %s not present in replication metadata" % att)
1971 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
1972 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
1974 self.fix_metadata(obj, att)
1976 if self.is_fsmo_role(dn):
1977 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
1978 self.err_no_fsmoRoleOwner(obj)
1982 if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
1983 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
1984 controls=["show_recycled:1", "show_deleted:1"])
1985 except ldb.LdbError, (enum, estr):
1986 if enum == ldb.ERR_NO_SUCH_OBJECT:
1987 self.err_missing_parent(obj)
1992 if dn in self.deleted_objects_containers and '*' in attrs:
1993 if self.is_deleted_deleted_objects(obj):
1994 self.err_deleted_deleted_objects(obj)
1997 for (dns_part, msg) in self.dns_partitions:
1998 if dn == dns_part and 'repsFrom' in obj:
1999 location = "msDS-NC-Replica-Locations"
2000 if self.samdb.am_rodc():
2001 location = "msDS-NC-RO-Replica-Locations"
2003 if location not in msg:
2004 # There are no replica locations!
2005 self.err_replica_locations(obj, msg.dn, location)
2010 for loc in msg[location]:
2011 if loc == self.samdb.get_dsServiceName():
2014 # This DC is not in the replica locations
2015 self.err_replica_locations(obj, msg.dn, location)
2018 if dn == self.server_ref_dn:
2019 # Check we have a valid RID Set
2020 if "*" in attrs or "rIDSetReferences" in attrs:
2021 if "rIDSetReferences" not in obj:
2022 # NO RID SET reference
2023 # We are RID master, allocate it.
2026 if self.is_rid_master:
2027 # Allocate a RID Set
2028 if self.confirm_all('Allocate the missing RID set for RID master?',
2029 'fix_missing_rid_set_master'):
2031 # We don't have auto-transaction logic on
2032 # extended operations, so we have to do it
2035 self.samdb.transaction_start()
2038 self.samdb.create_own_rid_set()
2041 self.samdb.transaction_cancel()
2044 self.samdb.transaction_commit()
2047 elif not self.samdb.am_rodc():
2048 self.report("No RID Set found for this server: %s, and we are not the RID Master (so can not self-allocate)" % dn)
2051 # Check some details of our own RID Set
2052 if dn == self.rid_set_dn:
2053 res = self.samdb.search(base=self.rid_set_dn, scope=ldb.SCOPE_BASE,
2054 attrs=["rIDAllocationPool",
2055 "rIDPreviousAllocationPool",
2058 if "rIDAllocationPool" not in res[0]:
2059 self.report("No rIDAllocationPool found in %s" % dn)
2062 next_pool = int(res[0]["rIDAllocationPool"][0])
2064 high = (0xFFFFFFFF00000000 & next_pool) >> 32
2065 low = 0x00000000FFFFFFFF & next_pool
2068 self.report("Invalid RID set %d-%s, %d > %d!" % (low, high, low, high))
2071 if "rIDNextRID" in res[0]:
2072 next_free_rid = int(res[0]["rIDNextRID"][0])
2076 if next_free_rid == 0:
2081 # Check the remainder of this pool for conflicts. If
2082 # ridalloc_allocate_rid() moves to a new pool, this
2083 # will be above high, so we will stop.
2084 while next_free_rid <= high:
2085 sid = "%s-%d" % (self.samdb.get_domain_sid(), next_free_rid)
2087 res = self.samdb.search(base="<SID=%s>" % sid, scope=ldb.SCOPE_BASE,
2089 except ldb.LdbError, (enum, estr):
2090 if enum != ldb.ERR_NO_SUCH_OBJECT:
2094 self.report("SID %s for %s conflicts with our current RID set in %s" % (sid, res[0].dn, dn))
2097 if self.confirm_all('Fix conflict between SID %s and RID pool in %s by allocating a new RID?'
2099 'fix_sid_rid_set_conflict'):
2100 self.samdb.transaction_start()
2102 # This will burn RIDs, which will move
2103 # past the conflict. We then check again
2104 # to see if the new RID conflicts, until
2105 # the end of the current pool. We don't
2106 # look at the next pool to avoid burning
2107 # all RIDs in one go in some strange
2111 allocated_rid = self.samdb.allocate_rid()
2112 if allocated_rid >= next_free_rid:
2113 next_free_rid = allocated_rid + 1
2116 self.samdb.transaction_cancel()
2119 self.samdb.transaction_commit()
2128 ################################################################
2129 # check special @ROOTDSE attributes
2130 def check_rootdse(self):
2131 '''check the @ROOTDSE special object'''
2132 dn = ldb.Dn(self.samdb, '@ROOTDSE')
2134 self.report("Checking object %s" % dn)
2135 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
2137 self.report("Object %s disappeared during check" % dn)
2142 # check that the dsServiceName is in GUID form
2143 if not 'dsServiceName' in obj:
2144 self.report('ERROR: dsServiceName missing in @ROOTDSE')
2145 return error_count+1
2147 if not obj['dsServiceName'][0].startswith('<GUID='):
2148 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
2150 if not self.confirm('Change dsServiceName to GUID form?'):
2152 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
2153 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
2154 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
2157 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
2158 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
2159 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
2160 self.report("Changed dsServiceName to GUID form")
2164 ###############################################
2165 # re-index the database
2166 def reindex_database(self):
2167 '''re-index the whole database'''
2169 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
2170 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
2171 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
2172 return self.do_modify(m, [], 're-indexed database', validate=False)
2174 ###############################################
2176 def reset_modules(self):
2177 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
2179 m.dn = ldb.Dn(self.samdb, "@MODULES")
2180 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
2181 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)