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_all_duplicate_links = False
69 self.fix_rmd_flags = False
70 self.fix_ntsecuritydescriptor = False
71 self.fix_ntsecuritydescriptor_owner_group = False
72 self.seize_fsmo_role = False
73 self.move_to_lost_and_found = False
74 self.fix_instancetype = False
75 self.fix_replmetadata_zero_invocationid = False
76 self.fix_replmetadata_duplicate_attid = False
77 self.fix_replmetadata_wrong_attid = False
78 self.fix_replmetadata_unsorted_attid = False
79 self.fix_deleted_deleted_objects = False
80 self.fix_incorrect_deleted_objects = False
82 self.fix_base64_userparameters = False
83 self.fix_utf8_userparameters = False
84 self.fix_doubled_userparameters = False
85 self.fix_sid_rid_set_conflict = False
86 self.reset_well_known_acls = reset_well_known_acls
87 self.reset_all_well_known_acls = False
88 self.in_transaction = in_transaction
89 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
90 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
91 self.schema_dn = samdb.get_schema_basedn()
92 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
93 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
94 self.class_schemaIDGUID = {}
95 self.wellknown_sds = get_wellknown_sds(self.samdb)
96 self.fix_all_missing_objectclass = False
97 self.fix_missing_deleted_objects = False
98 self.fix_replica_locations = False
99 self.fix_missing_rid_set_master = False
102 self.link_id_cache = {}
105 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
107 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
108 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
109 except ldb.LdbError, (enum, estr):
110 if enum != ldb.ERR_NO_SUCH_OBJECT:
114 self.system_session_info = system_session()
115 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
117 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
118 if "msDS-hasMasterNCs" in res[0]:
119 self.write_ncs = res[0]["msDS-hasMasterNCs"]
121 # If the Forest Level is less than 2003 then there is no
122 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
123 # no need to merge as all the NCs that are in hasMasterNCs must
124 # also be in msDS-hasMasterNCs (but not the opposite)
125 if "hasMasterNCs" in res[0]:
126 self.write_ncs = res[0]["hasMasterNCs"]
128 self.write_ncs = None
130 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
131 self.deleted_objects_containers = []
132 self.ncs_lacking_deleted_containers = []
133 self.dns_partitions = []
135 self.ncs = res[0]["namingContexts"]
143 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
144 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
145 self.deleted_objects_containers.append(dn)
147 self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc))
149 domaindns_zone = 'DC=DomainDnsZones,%s' % self.samdb.get_default_basedn()
150 forestdns_zone = 'DC=ForestDnsZones,%s' % self.samdb.get_root_basedn()
151 domain = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
152 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
153 base=self.samdb.get_partitions_dn(),
154 expression="(&(objectClass=crossRef)(ncName=%s))" % domaindns_zone)
156 self.dns_partitions.append((ldb.Dn(self.samdb, forestdns_zone), domain[0]))
158 forest = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
159 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
160 base=self.samdb.get_partitions_dn(),
161 expression="(&(objectClass=crossRef)(ncName=%s))" % forestdns_zone)
163 self.dns_partitions.append((ldb.Dn(self.samdb, domaindns_zone), forest[0]))
165 fsmo_dn = ldb.Dn(self.samdb, "CN=RID Manager$,CN=System," + self.samdb.domain_dn())
166 rid_master = get_fsmo_roleowner(self.samdb, fsmo_dn, "rid")
167 if ldb.Dn(self.samdb, self.samdb.get_dsServiceName()) == rid_master:
168 self.is_rid_master = True
170 self.is_rid_master = False
172 # To get your rid set
174 res = self.samdb.search(base=ldb.Dn(self.samdb, self.samdb.get_serverName()),
175 scope=ldb.SCOPE_BASE, attrs=["serverReference"])
176 # 2. Get server reference
177 self.server_ref_dn = ldb.Dn(self.samdb, res[0]['serverReference'][0])
180 res = self.samdb.search(base=self.server_ref_dn,
181 scope=ldb.SCOPE_BASE, attrs=['rIDSetReferences'])
182 if "rIDSetReferences" in res[0]:
183 self.rid_set_dn = ldb.Dn(self.samdb, res[0]['rIDSetReferences'][0])
185 self.rid_set_dn = None
187 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
188 '''perform a database check, returning the number of errors found'''
189 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
190 self.report('Checking %u objects' % len(res))
193 error_count += self.check_deleted_objects_containers()
195 self.attribute_or_class_ids = set()
198 self.dn_set.add(str(object.dn))
199 error_count += self.check_object(object.dn, attrs=attrs)
202 error_count += self.check_rootdse()
204 if error_count != 0 and not self.fix:
205 self.report("Please use --fix to fix these errors")
207 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
210 def check_deleted_objects_containers(self):
211 """This function only fixes conflicts on the Deleted Objects
212 containers, not the attributes"""
214 for nc in self.ncs_lacking_deleted_containers:
215 if nc == self.schema_dn:
218 self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
219 if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
222 dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
227 # If something already exists here, add a conflict
228 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
229 controls=["show_deleted:1", "extended_dn:1:1",
230 "show_recycled:1", "reveal_internals:0"])
232 guid = res[0].dn.get_extended_component("GUID")
233 conflict_dn = ldb.Dn(self.samdb,
234 "CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
235 conflict_dn.add_base(nc)
237 except ldb.LdbError, (enum, estr):
238 if enum == ldb.ERR_NO_SUCH_OBJECT:
241 self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
244 if conflict_dn is not None:
246 self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
247 except ldb.LdbError, (enum, estr):
248 self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
251 # Refresh wellKnownObjects links
252 res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
253 attrs=['wellKnownObjects'],
254 controls=["show_deleted:1", "extended_dn:0",
255 "show_recycled:1", "reveal_internals:0"])
257 self.report("wellKnownObjects was not found for NC %s" % nc)
260 # Prevent duplicate deleted objects containers just in case
261 wko = res[0]["wellKnownObjects"]
263 proposed_objectguid = None
265 dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
266 if self.is_deleted_objects_dn(dsdb_dn):
267 self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
268 # We really want to put this back in the same spot
269 # as the original one, so that on replication we
270 # merge, rather than conflict.
271 proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
274 if proposed_objectguid is not None:
275 guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
277 wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
278 listwko.append('%s:%s' % (wko_prefix, dn))
281 # Insert a brand new Deleted Objects container
282 self.samdb.add_ldif("""dn: %s
284 objectClass: container
285 description: Container for deleted objects
287 isCriticalSystemObject: TRUE
288 showInAdvancedViewOnly: TRUE
289 systemFlags: -1946157056%s""" % (dn, guid_suffix),
290 controls=["relax:0", "provision:0"])
292 delta = ldb.Message()
293 delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
294 delta["wellKnownObjects"] = ldb.MessageElement(listwko,
295 ldb.FLAG_MOD_REPLACE,
298 # Insert the link to the brand new container
299 if self.do_modify(delta, ["relax:0"],
300 "NC %s lacks Deleted Objects WKGUID" % nc,
302 self.report("Added %s well known guid link" % dn)
304 self.deleted_objects_containers.append(dn)
308 def report(self, msg):
309 '''print a message unless quiet is set'''
313 def confirm(self, msg, allow_all=False, forced=False):
314 '''confirm a change'''
321 return common.confirm(msg, forced=forced, allow_all=allow_all)
323 ################################################################
324 # a local confirm function with support for 'all'
325 def confirm_all(self, msg, all_attr):
326 '''confirm a change with support for "all" '''
329 if getattr(self, all_attr) == 'NONE':
331 if getattr(self, all_attr) == 'ALL':
337 c = common.confirm(msg, forced=forced, allow_all=True)
339 setattr(self, all_attr, 'ALL')
342 setattr(self, all_attr, 'NONE')
346 def do_delete(self, dn, controls, msg):
347 '''delete dn with optional verbose output'''
349 self.report("delete DN %s" % dn)
351 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
352 self.samdb.delete(dn, controls=controls)
353 except Exception, err:
354 if self.in_transaction:
355 raise CommandError("%s : %s" % (msg, err))
356 self.report("%s : %s" % (msg, err))
360 def do_modify(self, m, controls, msg, validate=True):
361 '''perform a modify with optional verbose output'''
363 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
365 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
366 self.samdb.modify(m, controls=controls, validate=validate)
367 except Exception, err:
368 if self.in_transaction:
369 raise CommandError("%s : %s" % (msg, err))
370 self.report("%s : %s" % (msg, err))
374 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
375 '''perform a modify with optional verbose output'''
377 self.report("""dn: %s
381 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
383 to_dn = to_rdn + to_base
384 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
385 self.samdb.rename(from_dn, to_dn, controls=controls)
386 except Exception, err:
387 if self.in_transaction:
388 raise CommandError("%s : %s" % (msg, err))
389 self.report("%s : %s" % (msg, err))
393 def get_attr_linkID_and_reverse_name(self, attrname):
394 if attrname in self.link_id_cache:
395 return self.link_id_cache[attrname]
396 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
398 revname = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
401 self.link_id_cache[attrname] = (linkID, revname)
402 return linkID, revname
404 def err_empty_attribute(self, dn, attrname):
405 '''fix empty attributes'''
406 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
407 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
408 self.report("Not fixing empty attribute %s" % attrname)
413 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
414 if self.do_modify(m, ["relax:0", "show_recycled:1"],
415 "Failed to remove empty attribute %s" % attrname, validate=False):
416 self.report("Removed empty attribute %s" % attrname)
418 def err_normalise_mismatch(self, dn, attrname, values):
419 '''fix attribute normalisation errors'''
420 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
423 normalised = self.samdb.dsdb_normalise_attributes(
424 self.samdb_schema, attrname, [val])
425 if len(normalised) != 1:
426 self.report("Unable to normalise value '%s'" % val)
427 mod_list.append((val, ''))
428 elif (normalised[0] != val):
429 self.report("value '%s' should be '%s'" % (val, normalised[0]))
430 mod_list.append((val, normalised[0]))
431 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
432 self.report("Not fixing attribute %s" % attrname)
437 for i in range(0, len(mod_list)):
438 (val, nval) = mod_list[i]
439 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
441 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
444 if self.do_modify(m, ["relax:0", "show_recycled:1"],
445 "Failed to normalise attribute %s" % attrname,
447 self.report("Normalised attribute %s" % attrname)
449 def err_normalise_mismatch_replace(self, dn, attrname, values):
450 '''fix attribute normalisation errors'''
451 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
452 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
453 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
454 if list(normalised) == values:
456 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
457 self.report("Not fixing attribute '%s'" % attrname)
462 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
464 if self.do_modify(m, ["relax:0", "show_recycled:1"],
465 "Failed to normalise attribute %s" % attrname,
467 self.report("Normalised attribute %s" % attrname)
469 def err_duplicate_values(self, dn, attrname, dup_values, values):
470 '''fix attribute normalisation errors'''
471 self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
472 self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
473 if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
474 self.report("Not fixing attribute '%s'" % attrname)
479 m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
481 if self.do_modify(m, ["relax:0", "show_recycled:1"],
482 "Failed to remove duplicate value on attribute %s" % attrname,
484 self.report("Removed duplicate value on attribute %s" % attrname)
486 def is_deleted_objects_dn(self, dsdb_dn):
487 '''see if a dsdb_Dn is the special Deleted Objects DN'''
488 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
490 def err_missing_objectclass(self, dn):
491 """handle object without objectclass"""
492 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)))
493 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'):
494 self.report("Not deleting object with missing objectclass '%s'" % dn)
496 if self.do_delete(dn, ["relax:0"],
497 "Failed to remove DN %s" % dn):
498 self.report("Removed DN %s" % dn)
500 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn, remove_plausible=False):
501 """handle a DN pointing to a deleted object"""
502 if not remove_plausible:
503 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
504 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
505 if not self.confirm_all('Remove DN link?', 'remove_implausible_deleted_DN_links'):
506 self.report("Not removing")
509 self.report("WARNING: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
510 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
511 if not self.confirm_all('Remove stale DN link?', 'remove_plausible_deleted_DN_links'):
512 self.report("Not removing")
517 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
518 if self.do_modify(m, ["show_recycled:1",
519 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
520 "Failed to remove deleted DN attribute %s" % attrname):
521 self.report("Removed deleted DN on attribute %s" % attrname)
523 def err_missing_target_dn_or_GUID(self, dn, attrname, val, dsdb_dn):
524 """handle a missing target DN (if specified, GUID form can't be found,
525 and otherwise DN string form can't be found)"""
526 # check if its a backlink
527 linkID, _ = self.get_attr_linkID_and_reverse_name(attrname)
528 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
530 linkID, reverse_link_name \
531 = self.get_attr_linkID_and_reverse_name(attrname)
532 if reverse_link_name is not None:
533 self.report("WARNING: no target object found for GUID "
534 "component for one-way forward link "
536 "%s - %s" % (attrname, dn, val))
537 self.report("Not removing dangling forward link")
540 nc_root = self.samdb.get_nc_root(dn)
541 target_nc_root = self.samdb.get_nc_root(dsdb_dn.dn)
542 if nc_root != target_nc_root:
543 # We don't bump the error count as Samba produces these
544 # in normal operation
545 self.report("WARNING: no target object found for GUID "
546 "component for cross-partition link "
548 "%s - %s" % (attrname, dn, val))
549 self.report("Not removing dangling one-way "
550 "cross-partition link "
551 "(we might be mid-replication)")
554 # Due to our link handling one-way links pointing to
555 # missing objects are plausible.
557 # We don't bump the error count as Samba produces these
558 # in normal operation
559 self.report("WARNING: no target object found for GUID "
560 "component for DN value %s in object "
561 "%s - %s" % (attrname, dn, val))
562 self.err_deleted_dn(dn, attrname, val,
563 dsdb_dn, dsdb_dn, True)
566 # We bump the error count here, as we should have deleted this
567 self.report("ERROR: no target object found for GUID "
568 "component for link %s in object "
569 "%s - %s" % (attrname, dn, val))
570 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn, False)
573 def err_missing_dn_GUID_component(self, dn, attrname, val, dsdb_dn, errstr):
574 """handle a missing GUID extended DN component"""
575 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
576 controls=["extended_dn:1:1", "show_recycled:1"]
578 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
579 attrs=[], controls=controls)
580 except ldb.LdbError, (enum, estr):
581 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
582 if enum != ldb.ERR_NO_SUCH_OBJECT:
584 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
587 self.report("unable to find object for DN %s" % dsdb_dn.dn)
588 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
590 dsdb_dn.dn = res[0].dn
592 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
593 self.report("Not fixing %s" % errstr)
597 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
598 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
600 if self.do_modify(m, ["show_recycled:1"],
601 "Failed to fix %s on attribute %s" % (errstr, attrname)):
602 self.report("Fixed %s on attribute %s" % (errstr, attrname))
604 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
605 """handle an incorrect binary DN component"""
606 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
607 controls=["extended_dn:1:1", "show_recycled:1"]
609 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
610 self.report("Not fixing %s" % errstr)
614 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
615 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
617 if self.do_modify(m, ["show_recycled:1"],
618 "Failed to fix %s on attribute %s" % (errstr, attrname)):
619 self.report("Fixed %s on attribute %s" % (errstr, attrname))
621 def err_dn_string_component_old(self, dn, attrname, val, dsdb_dn, correct_dn):
622 """handle a DN string being incorrect"""
623 self.report("NOTE: old (due to rename or delete) DN string component for %s in object %s - %s" % (attrname, dn, val))
624 dsdb_dn.dn = correct_dn
626 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
627 'fix_all_old_dn_string_component_mismatch'):
628 self.report("Not fixing old string component")
632 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
633 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
634 if self.do_modify(m, ["show_recycled:1"],
635 "Failed to fix old DN string on attribute %s" % (attrname)):
636 self.report("Fixed old DN string on attribute %s" % (attrname))
638 def err_dn_component_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, mismatch_type):
639 """handle a DN string being incorrect"""
640 self.report("ERROR: incorrect DN %s component for %s in object %s - %s" % (mismatch_type, attrname, dn, val))
641 dsdb_dn.dn = correct_dn
643 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
644 'fix_all_%s_dn_component_mismatch' % mismatch_type):
645 self.report("Not fixing %s component mismatch" % mismatch_type)
649 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
650 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
651 if self.do_modify(m, ["show_recycled:1"],
652 "Failed to fix incorrect DN %s on attribute %s" % (mismatch_type, attrname)):
653 self.report("Fixed incorrect DN %s on attribute %s" % (mismatch_type, attrname))
655 def err_unknown_attribute(self, obj, attrname):
656 '''handle an unknown attribute error'''
657 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
658 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
659 self.report("Not removing %s" % attrname)
663 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
664 if self.do_modify(m, ["relax:0", "show_recycled:1"],
665 "Failed to remove unknown attribute %s" % attrname):
666 self.report("Removed unknown attribute %s" % (attrname))
668 def err_undead_linked_attribute(self, obj, attrname, val):
669 '''handle a link that should not be there on a deleted object'''
670 self.report("ERROR: linked attribute '%s' to '%s' is present on "
671 "deleted object %s" % (attrname, val, obj.dn))
672 if not self.confirm_all('Remove linked attribute %s' % attrname, 'fix_undead_linked_attributes'):
673 self.report("Not removing linked attribute %s" % attrname)
677 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
679 if self.do_modify(m, ["show_recycled:1", "show_deleted:1", "reveal_internals:0",
680 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
681 "Failed to delete forward link %s" % attrname):
682 self.report("Fixed undead forward link %s" % (attrname))
684 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
685 '''handle a missing backlink value'''
686 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
687 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
688 self.report("Not fixing missing backlink %s" % backlink_name)
692 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, backlink_name)
693 if self.do_modify(m, ["show_recycled:1", "relax:0"],
694 "Failed to fix missing backlink %s" % backlink_name):
695 self.report("Fixed missing backlink %s" % (backlink_name))
697 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
698 '''handle a incorrect RMD_FLAGS value'''
699 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
700 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()))
701 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
702 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
706 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
707 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
708 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
709 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
711 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
712 '''handle a orphaned backlink value'''
713 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
714 if not self.confirm_all('Remove orphaned backlink %s' % attrname, 'fix_all_orphaned_backlinks'):
715 self.report("Not removing orphaned backlink %s" % attrname)
719 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
720 if self.do_modify(m, ["show_recycled:1", "relax:0"],
721 "Failed to fix orphaned backlink %s" % attrname):
722 self.report("Fixed orphaned backlink %s" % (attrname))
724 def err_duplicate_links(self, obj, attrname, vals):
725 '''handle a duplicate links value'''
727 if not self.confirm_all("Remove duplicate links in attribute '%s'" % attrname, 'fix_all_duplicate_links'):
728 self.report("Not removing duplicate links in attribute '%s'" % attrname)
732 m['value'] = ldb.MessageElement(vals, ldb.FLAG_MOD_REPLACE, attrname)
733 if self.do_modify(m, ["local_oid:1.3.6.1.4.1.7165.4.3.19.2:1"],
734 "Failed to fix duplicate links in attribute '%s'" % attrname):
735 self.report("Fixed duplicate links in attribute '%s'" % (attrname))
737 def err_no_fsmoRoleOwner(self, obj):
738 '''handle a missing fSMORoleOwner'''
739 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
740 res = self.samdb.search("",
741 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
743 serviceName = res[0]["dsServiceName"][0]
744 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
745 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
749 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
750 if self.do_modify(m, [],
751 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
752 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
754 def err_missing_parent(self, obj):
755 '''handle a missing parent'''
756 self.report("ERROR: parent object not found for %s" % (obj.dn))
757 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
758 self.report('Not moving object %s into LostAndFound' % (obj.dn))
761 keep_transaction = False
762 self.samdb.transaction_start()
764 nc_root = self.samdb.get_nc_root(obj.dn);
765 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
766 new_dn = ldb.Dn(self.samdb, str(obj.dn))
767 new_dn.remove_base_components(len(new_dn) - 1)
768 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
769 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
770 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
774 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
776 if self.do_modify(m, [],
777 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
778 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
779 keep_transaction = True
781 self.samdb.transaction_cancel()
785 self.samdb.transaction_commit()
787 self.samdb.transaction_cancel()
789 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
790 '''handle a wrong dn'''
792 new_rdn = ldb.Dn(self.samdb, str(new_dn))
793 new_rdn.remove_base_components(len(new_rdn) - 1)
794 new_parent = new_dn.parent()
797 if rdn_val != name_val:
798 attributes += "%s=%r " % (rdn_attr, rdn_val)
799 attributes += "name=%r" % (name_val)
801 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
802 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
803 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
806 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
807 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
808 self.report("Renamed %s into %s" % (obj.dn, new_dn))
810 def err_wrong_instancetype(self, obj, calculated_instancetype):
811 '''handle a wrong instanceType'''
812 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
813 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
814 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
819 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
820 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
821 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
822 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
824 def err_short_userParameters(self, obj, attrname, value):
825 # This is a truncated userParameters due to a pre 4.1 replication bug
826 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)))
828 def err_base64_userParameters(self, obj, attrname, value):
829 '''handle a wrong userParameters'''
830 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
831 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
832 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
837 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
838 if self.do_modify(m, [],
839 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
840 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
842 def err_utf8_userParameters(self, obj, attrname, value):
843 '''handle a wrong userParameters'''
844 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
845 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
846 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
851 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
852 ldb.FLAG_MOD_REPLACE, 'userParameters')
853 if self.do_modify(m, [],
854 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
855 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
857 def err_doubled_userParameters(self, obj, attrname, value):
858 '''handle a wrong userParameters'''
859 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
860 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
861 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
866 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
867 ldb.FLAG_MOD_REPLACE, 'userParameters')
868 if self.do_modify(m, [],
869 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
870 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
872 def err_odd_userParameters(self, obj, attrname):
873 # This is a truncated userParameters due to a pre 4.1 replication bug
874 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)))
876 def find_revealed_link(self, dn, attrname, guid):
877 '''return a revealed link in an object'''
878 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
879 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
880 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
881 for val in res[0][attrname]:
882 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
883 guid2 = dsdb_dn.dn.get_extended_component("GUID")
888 def check_dn(self, obj, attrname, syntax_oid):
889 '''check a DN attribute for correctness'''
891 obj_guid = obj['objectGUID'][0]
893 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
894 if reverse_link_name is not None:
895 reverse_syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(reverse_link_name)
897 reverse_syntax_oid = None
899 duplicate_dict = dict()
900 duplicate_list = list()
903 for val in obj[attrname]:
906 # Only cleanup forward links here,
907 # back links are handled below.
910 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
912 # all DNs should have a GUID component
913 guid = dsdb_dn.dn.get_extended_component("GUID")
916 guidstr = str(misc.GUID(guid))
917 keystr = guidstr + dsdb_dn.prefix
918 if keystr not in unique_dict:
919 unique_dict[keystr] = dsdb_dn
920 unique_list.append(keystr)
923 if keystr not in duplicate_dict:
924 duplicate_dict[keystr] = dict()
925 duplicate_dict[keystr]["keep"] = None
926 duplicate_dict[keystr]["delete"] = list()
927 duplicate_list.append(keystr)
929 # Now check for the highest RMD_VERSION
930 v1 = int(unique_dict[keystr].dn.get_extended_component("RMD_VERSION"))
931 v2 = int(dsdb_dn.dn.get_extended_component("RMD_VERSION"))
933 duplicate_dict[keystr]["keep"] = unique_dict[keystr]
934 duplicate_dict[keystr]["delete"].append(dsdb_dn)
937 duplicate_dict[keystr]["keep"] = dsdb_dn
938 duplicate_dict[keystr]["delete"].append(unique_dict[keystr])
939 unique_dict[keystr] = dsdb_dn
941 # Fallback to the highest RMD_LOCAL_USN
942 u1 = int(unique_dict[keystr].dn.get_extended_component("RMD_LOCAL_USN"))
943 u2 = int(dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN"))
945 duplicate_dict[keystr]["keep"] = unique_dict[keystr]
946 duplicate_dict[keystr]["delete"].append(dsdb_dn)
948 duplicate_dict[keystr]["keep"] = dsdb_dn
949 duplicate_dict[keystr]["delete"].append(unique_dict[keystr])
950 unique_dict[keystr] = dsdb_dn
952 if len(duplicate_list) != 0:
953 self.report("ERROR: Duplicate link values for attribute '%s' in '%s'" % (attrname, obj.dn))
954 for keystr in duplicate_list:
955 d = duplicate_dict[keystr]
956 for dd in d["delete"]:
957 self.report("Duplicate link '%s'" % dd)
958 self.report("Correct link '%s'" % d["keep"])
961 for keystr in unique_list:
962 dsdb_dn = unique_dict[keystr]
963 vals.append(str(dsdb_dn))
964 self.err_duplicate_links(obj, attrname, vals)
965 # We should continue with the fixed values
966 obj[attrname] = ldb.MessageElement(vals, ldb.FLAG_MOD_REPLACE, attrname)
968 for val in obj[attrname]:
969 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
971 # all DNs should have a GUID component
972 guid = dsdb_dn.dn.get_extended_component("GUID")
975 self.err_missing_dn_GUID_component(obj.dn, attrname, val, dsdb_dn,
979 guidstr = str(misc.GUID(guid))
980 attrs = ['isDeleted', 'replPropertyMetaData']
982 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
983 fixing_msDS_HasInstantiatedNCs = True
984 attrs.append("instanceType")
986 fixing_msDS_HasInstantiatedNCs = False
988 if reverse_link_name is not None:
989 attrs.append(reverse_link_name)
991 # check its the right GUID
993 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
994 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1",
997 except ldb.LdbError, (enum, estr):
998 if enum != ldb.ERR_NO_SUCH_OBJECT:
1001 # We don't always want to
1002 error_count += self.err_missing_target_dn_or_GUID(obj.dn,
1008 if fixing_msDS_HasInstantiatedNCs:
1009 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
1010 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
1012 if str(dsdb_dn) != val:
1014 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
1017 # now we have two cases - the source object might or might not be deleted
1018 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
1019 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
1022 if is_deleted and not obj.dn in self.deleted_objects_containers and linkID:
1023 # A fully deleted object should not have any linked
1024 # attributes. (MS-ADTS 3.1.1.5.5.1.1 Tombstone
1025 # Requirements and 3.1.1.5.5.1.3 Recycled-Object
1027 self.err_undead_linked_attribute(obj, attrname, val)
1030 elif target_is_deleted and not self.is_deleted_objects_dn(dsdb_dn) and linkID:
1031 # the target DN is not allowed to be deleted, unless the target DN is the
1032 # special Deleted Objects container
1034 local_usn = dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN")
1036 if 'replPropertyMetaData' in res[0]:
1037 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1038 str(res[0]['replPropertyMetadata']))
1040 for o in repl.ctr.array:
1041 if o.attid == drsuapi.DRSUAPI_ATTID_isDeleted:
1042 deleted_usn = o.local_usn
1043 if deleted_usn >= int(local_usn):
1044 # If the object was deleted after the link
1045 # was last modified then, clean it up here
1050 self.err_deleted_dn(obj.dn, attrname,
1051 val, dsdb_dn, res[0].dn, True)
1054 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn, False)
1057 # We should not check for incorrect
1058 # components on deleted links, as these are allowed to
1059 # go stale (we just need the GUID, not the name)
1060 rmd_blob = dsdb_dn.dn.get_extended_component("RMD_FLAGS")
1062 if rmd_blob is not None:
1063 rmd_flags = int(rmd_blob)
1065 # assert the DN matches in string form, where a reverse
1066 # link exists, otherwise (below) offer to fix it as a non-error.
1067 # The string form is essentially only kept for forensics,
1068 # as we always re-resolve by GUID in normal operations.
1069 if not rmd_flags & 1 and reverse_link_name is not None:
1070 if str(res[0].dn) != str(dsdb_dn.dn):
1072 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1073 res[0].dn, "string")
1076 if res[0].dn.get_extended_component("GUID") != dsdb_dn.dn.get_extended_component("GUID"):
1078 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1082 if res[0].dn.get_extended_component("SID") != dsdb_dn.dn.get_extended_component("SID"):
1084 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1088 # Now we have checked the GUID and SID, offer to fix old
1089 # DN strings as a non-error (for forward links with no
1090 # backlink). Samba does not maintain this string
1091 # otherwise, so we don't increment error_count.
1092 if reverse_link_name is None:
1093 if str(res[0].dn) != str(dsdb_dn.dn):
1094 self.err_dn_string_component_old(obj.dn, attrname, val, dsdb_dn,
1098 # check the reverse_link is correct if there should be one
1100 if reverse_link_name in res[0]:
1101 for v in res[0][reverse_link_name]:
1102 v_dn = dsdb_Dn(self.samdb, v)
1103 v_guid = v_dn.dn.get_extended_component("GUID")
1104 v_blob = v_dn.dn.get_extended_component("RMD_FLAGS")
1106 if v_blob is not None:
1107 v_rmd_flags = int(v_blob)
1110 if v_guid == obj_guid:
1113 if match_count != 1:
1114 if syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN or reverse_syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN:
1116 # Forward binary multi-valued linked attribute
1118 for w in obj[attrname]:
1119 w_guid = dsdb_Dn(self.samdb, w).dn.get_extended_component("GUID")
1123 if match_count == forward_count:
1126 for v in obj[attrname]:
1127 v_dn = dsdb_Dn(self.samdb, v)
1128 v_guid = v_dn.dn.get_extended_component("GUID")
1129 v_blob = v_dn.dn.get_extended_component("RMD_FLAGS")
1131 if v_blob is not None:
1132 v_rmd_flags = int(v_blob)
1138 if match_count == expected_count:
1141 diff_count = expected_count - match_count
1144 # If there's a backward link on binary multi-valued linked attribute,
1145 # let the check on the forward link remedy the value.
1146 # UNLESS, there is no forward link detected.
1147 if match_count == 0:
1149 self.err_orphaned_backlink(obj, attrname,
1150 val, reverse_link_name,
1153 # Only warn here and let the forward link logic fix it.
1154 self.report("WARNING: Link (back) mismatch for '%s' (%d) on '%s' to '%s' (%d) on '%s'" % (
1155 attrname, expected_count, str(obj.dn),
1156 reverse_link_name, match_count, str(dsdb_dn.dn)))
1159 assert not target_is_deleted
1161 self.report("ERROR: Link (forward) mismatch for '%s' (%d) on '%s' to '%s' (%d) on '%s'" % (
1162 attrname, expected_count, str(obj.dn),
1163 reverse_link_name, match_count, str(dsdb_dn.dn)))
1165 # Loop until the difference between the forward and
1166 # the backward links is resolved.
1167 while diff_count != 0:
1170 if match_count > 0 or diff_count > 1:
1171 # TODO no method to fix these right now
1172 self.report("ERROR: Can't fix missing "
1173 "multi-valued backlinks on %s" % str(dsdb_dn.dn))
1175 self.err_missing_backlink(obj, attrname,
1176 obj.dn.extended_str(),
1181 self.err_orphaned_backlink(res[0], reverse_link_name,
1182 obj.dn.extended_str(), attrname,
1190 def get_originating_time(self, val, attid):
1191 '''Read metadata properties and return the originating time for
1192 a given attributeId.
1194 :return: the originating time or 0 if not found
1197 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1200 for o in repl.ctr.array:
1201 if o.attid == attid:
1202 return o.originating_change_time
1206 def process_metadata(self, dn, val):
1207 '''Read metadata properties and list attributes in it.
1208 raises KeyError if the attid is unknown.'''
1211 wrong_attids = set()
1213 in_schema_nc = dn.is_child_of(self.schema_dn)
1215 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1218 for o in repl.ctr.array:
1219 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1220 set_att.add(att.lower())
1221 list_attid.append(o.attid)
1222 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
1223 is_schema_nc=in_schema_nc)
1224 if correct_attid != o.attid:
1225 wrong_attids.add(o.attid)
1227 return (set_att, list_attid, wrong_attids)
1230 def fix_metadata(self, obj, attr):
1231 '''re-write replPropertyMetaData elements for a single attribute for a
1232 object. This is used to fix missing replPropertyMetaData elements'''
1233 guid_str = str(ndr_unpack(misc.GUID, obj['objectGUID'][0]))
1234 dn = ldb.Dn(self.samdb, "<GUID=%s>" % guid_str)
1235 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
1236 controls = ["search_options:1:2",
1239 nmsg = ldb.Message()
1241 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
1242 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
1243 "Failed to fix metadata for attribute %s" % attr):
1244 self.report("Fixed metadata for attribute %s" % attr)
1246 def ace_get_effective_inherited_type(self, ace):
1247 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
1251 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
1253 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
1255 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
1257 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
1263 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
1266 return str(ace.object.inherited_type)
1268 def lookup_class_schemaIDGUID(self, cls):
1269 if cls in self.class_schemaIDGUID:
1270 return self.class_schemaIDGUID[cls]
1272 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
1273 res = self.samdb.search(base=self.schema_dn,
1275 attrs=["schemaIDGUID"])
1276 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
1278 self.class_schemaIDGUID[cls] = t
1281 def process_sd(self, dn, obj):
1282 sd_attr = "nTSecurityDescriptor"
1283 sd_val = obj[sd_attr]
1285 sd = ndr_unpack(security.descriptor, str(sd_val))
1287 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
1289 # we don't fix deleted objects
1292 sd_clean = security.descriptor()
1293 sd_clean.owner_sid = sd.owner_sid
1294 sd_clean.group_sid = sd.group_sid
1295 sd_clean.type = sd.type
1296 sd_clean.revision = sd.revision
1299 last_inherited_type = None
1302 if sd.sacl is not None:
1304 for i in range(0, len(aces)):
1307 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1308 sd_clean.sacl_add(ace)
1311 t = self.ace_get_effective_inherited_type(ace)
1315 if last_inherited_type is not None:
1316 if t != last_inherited_type:
1317 # if it inherited from more than
1318 # one type it's very likely to be broken
1320 # If not the recalculation will calculate
1325 last_inherited_type = t
1328 if sd.dacl is not None:
1330 for i in range(0, len(aces)):
1333 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1334 sd_clean.dacl_add(ace)
1337 t = self.ace_get_effective_inherited_type(ace)
1341 if last_inherited_type is not None:
1342 if t != last_inherited_type:
1343 # if it inherited from more than
1344 # one type it's very likely to be broken
1346 # If not the recalculation will calculate
1351 last_inherited_type = t
1354 return (sd_clean, sd)
1356 if last_inherited_type is None:
1362 cls = obj["objectClass"][-1]
1367 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1368 attrs=["isDeleted", "objectClass"],
1369 controls=["show_recycled:1"])
1371 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
1373 # we don't fix deleted objects
1375 cls = o["objectClass"][-1]
1377 t = self.lookup_class_schemaIDGUID(cls)
1379 if t != last_inherited_type:
1381 return (sd_clean, sd)
1386 def err_wrong_sd(self, dn, sd, sd_broken):
1387 '''re-write the SD due to incorrect inherited ACEs'''
1388 sd_attr = "nTSecurityDescriptor"
1389 sd_val = ndr_pack(sd)
1390 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1392 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
1393 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
1396 nmsg = ldb.Message()
1398 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1399 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1400 "Failed to fix attribute %s" % sd_attr):
1401 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1403 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
1404 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
1405 sd_attr = "nTSecurityDescriptor"
1406 sd_val = ndr_pack(sd)
1407 sd_old_val = ndr_pack(sd_old)
1408 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1409 if sd.owner_sid is not None:
1410 sd_flags |= security.SECINFO_OWNER
1411 if sd.group_sid is not None:
1412 sd_flags |= security.SECINFO_GROUP
1414 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
1415 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
1420 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1421 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
1422 "Failed to reset attribute %s" % sd_attr):
1423 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1425 def err_missing_sd_owner(self, dn, sd):
1426 '''re-write the SD due to a missing owner or group'''
1427 sd_attr = "nTSecurityDescriptor"
1428 sd_val = ndr_pack(sd)
1429 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
1431 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
1432 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
1435 nmsg = ldb.Message()
1437 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1439 # By setting the session_info to admin_session_info and
1440 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
1441 # flags we cause the descriptor module to set the correct
1442 # owner and group on the SD, replacing the None/NULL values
1443 # for owner_sid and group_sid currently present.
1445 # The admin_session_info matches that used in provision, and
1446 # is the best guess we can make for an existing object that
1447 # hasn't had something specifically set.
1449 # This is important for the dns related naming contexts.
1450 self.samdb.set_session_info(self.admin_session_info)
1451 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1452 "Failed to fix metadata for attribute %s" % sd_attr):
1453 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1454 self.samdb.set_session_info(self.system_session_info)
1457 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
1458 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1459 str(repl_meta_data))
1463 # Search for a zero invocationID
1464 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1468 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
1469 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
1470 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
1471 % (dn, o.attid, o.version,
1472 time.ctime(samba.nttime2unix(o.originating_change_time)),
1473 self.samdb.get_invocation_id()))
1478 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
1479 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1480 str(repl_meta_data))
1482 now = samba.unix2nttime(int(time.time()))
1485 # Search for a zero invocationID
1486 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1490 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
1491 o.version = o.version + 1
1492 o.originating_change_time = now
1493 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
1494 o.originating_usn = seq
1498 replBlob = ndr_pack(repl)
1502 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
1503 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
1504 self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
1507 nmsg = ldb.Message()
1509 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1510 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1511 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
1512 "Failed to fix attribute %s" % attr):
1513 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1516 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1517 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1518 str(repl_meta_data))
1521 # Search for an invalid attid
1523 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1525 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1529 def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
1530 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1531 str(repl_meta_data))
1535 remove_attid = set()
1538 in_schema_nc = dn.is_child_of(self.schema_dn)
1541 # Sort the array, except for the last element. This strange
1542 # construction, creating a new list, due to bugs in samba's
1543 # array handling in IDL generated objects.
1544 ctr.array = sorted(ctr.array[:], key=lambda o: o.attid)
1545 # Now walk it in reverse, so we see the low (and so incorrect,
1546 # the correct values are above 0x80000000) values first and
1547 # remove the 'second' value we see.
1548 for o in reversed(ctr.array):
1549 print "%s: 0x%08x" % (dn, o.attid)
1550 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1551 if att.lower() in set_att:
1552 self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
1553 if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
1554 % (attr, dn, o.attid, att, hash_att[att].attid),
1555 'fix_replmetadata_duplicate_attid'):
1556 self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
1557 % (o.attid, att, attr, dn))
1560 remove_attid.add(o.attid)
1561 # We want to set the metadata for the most recent
1562 # update to have been applied locally, that is the metadata
1563 # matching the (eg string) value in the attribute
1564 if o.local_usn > hash_att[att].local_usn:
1565 # This is always what we would have sent over DRS,
1566 # because the DRS server will have sent the
1567 # msDS-IntID, but with the values from both
1568 # attribute entries.
1569 hash_att[att].version = o.version
1570 hash_att[att].originating_change_time = o.originating_change_time
1571 hash_att[att].originating_invocation_id = o.originating_invocation_id
1572 hash_att[att].originating_usn = o.originating_usn
1573 hash_att[att].local_usn = o.local_usn
1575 # Do not re-add the value to the set or overwrite the hash value
1579 set_att.add(att.lower())
1581 # Generate a real list we can sort on properly
1582 new_list = [o for o in ctr.array if o.attid not in remove_attid]
1584 if (len(wrong_attids) > 0):
1586 if o.attid in wrong_attids:
1587 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1588 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
1589 self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
1590 if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
1591 % (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
1592 self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
1593 % (o.attid, correct_attid, att, attr, dn))
1596 o.attid = correct_attid
1598 # Sort the array, (we changed the value so must re-sort)
1599 new_list[:] = sorted(new_list[:], key=lambda o: o.attid)
1601 # If we did not already need to fix it, then ask about sorting
1603 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1604 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1605 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1606 self.report('Not fixing %s on %s\n' % (attr, dn))
1609 # The actual sort done is done at the top of the function
1611 ctr.count = len(new_list)
1612 ctr.array = new_list
1613 replBlob = ndr_pack(repl)
1615 nmsg = ldb.Message()
1617 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1618 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1619 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1620 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1621 "Failed to fix attribute %s" % attr):
1622 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1625 def is_deleted_deleted_objects(self, obj):
1627 if "description" not in obj:
1628 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1630 if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
1631 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1633 if "objectCategory" not in obj:
1634 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1636 if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
1637 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1639 if "isRecycled" in obj:
1640 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1642 if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
1643 self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
1645 if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
1646 obj['objectClass'][0] != 'top' or
1647 obj['objectClass'][1] != 'container'):
1648 self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
1650 if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
1651 self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
1655 def err_deleted_deleted_objects(self, obj):
1656 nmsg = ldb.Message()
1657 nmsg.dn = dn = obj.dn
1659 if "description" not in obj:
1660 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1661 if "showInAdvancedViewOnly" not in obj:
1662 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1663 if "objectCategory" not in obj:
1664 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1665 if "isCriticalSystemObject" not in obj:
1666 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1667 if "isRecycled" in obj:
1668 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1670 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1671 nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
1672 nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
1674 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1675 % (dn), 'fix_deleted_deleted_objects'):
1676 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1679 if self.do_modify(nmsg, ["relax:0"],
1680 "Failed to fix Deleted Objects container %s" % dn):
1681 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1683 def err_replica_locations(self, obj, cross_ref, attr):
1684 nmsg = ldb.Message()
1686 target = self.samdb.get_dsServiceName()
1688 if self.samdb.am_rodc():
1689 self.report('Not fixing %s for the RODC' % (attr, obj.dn))
1692 if not self.confirm_all('Add yourself to the replica locations for %s?'
1693 % (obj.dn), 'fix_replica_locations'):
1694 self.report('Not fixing missing/incorrect attributes on %s\n' % (obj.dn))
1697 nmsg[attr] = ldb.MessageElement(target, ldb.FLAG_MOD_ADD, attr)
1698 if self.do_modify(nmsg, [], "Failed to add %s for %s" % (attr, obj.dn)):
1699 self.report("Fixed %s for %s" % (attr, obj.dn))
1701 def is_fsmo_role(self, dn):
1702 if dn == self.samdb.domain_dn:
1704 if dn == self.infrastructure_dn:
1706 if dn == self.naming_dn:
1708 if dn == self.schema_dn:
1710 if dn == self.rid_dn:
1715 def calculate_instancetype(self, dn):
1717 nc_root = self.samdb.get_nc_root(dn)
1719 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1721 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1722 except ldb.LdbError, (enum, estr):
1723 if enum != ldb.ERR_NO_SUCH_OBJECT:
1726 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1728 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1729 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1733 def get_wellknown_sd(self, dn):
1734 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1736 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1737 return ndr_unpack(security.descriptor,
1738 descriptor_fn(domain_sid,
1739 name_map=self.name_map))
1743 def check_object(self, dn, attrs=['*']):
1744 '''check one object'''
1746 self.report("Checking object %s" % dn)
1748 # If we modify the pass-by-reference attrs variable, then we get a
1749 # replPropertyMetadata for every object that we check.
1751 if "dn" in map(str.lower, attrs):
1752 attrs.append("name")
1753 if "distinguishedname" in map(str.lower, attrs):
1754 attrs.append("name")
1755 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1756 attrs.append("name")
1757 if 'name' in map(str.lower, attrs):
1758 attrs.append(dn.get_rdn_name())
1759 attrs.append("isDeleted")
1760 attrs.append("systemFlags")
1762 attrs.append("replPropertyMetaData")
1764 attrs.append("objectGUID")
1768 sd_flags |= security.SECINFO_OWNER
1769 sd_flags |= security.SECINFO_GROUP
1770 sd_flags |= security.SECINFO_DACL
1771 sd_flags |= security.SECINFO_SACL
1773 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1778 "sd_flags:1:%d" % sd_flags,
1779 "reveal_internals:0",
1782 except ldb.LdbError, (enum, estr):
1783 if enum == ldb.ERR_NO_SUCH_OBJECT:
1784 if self.in_transaction:
1785 self.report("ERROR: Object %s disappeared during check" % dn)
1790 self.report("ERROR: Object %s failed to load during check" % dn)
1794 set_attrs_from_md = set()
1795 set_attrs_seen = set()
1796 got_repl_property_meta_data = False
1797 got_objectclass = False
1799 nc_dn = self.samdb.get_nc_root(obj.dn)
1801 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1802 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1804 # We have no deleted objects DN for schema, and we check for this above for the other
1806 deleted_objects_dn = None
1809 object_rdn_attr = None
1810 object_rdn_val = None
1815 for attrname in obj:
1816 if attrname == 'dn' or attrname == "distinguishedName":
1819 if str(attrname).lower() == 'objectclass':
1820 got_objectclass = True
1822 if str(attrname).lower() == "name":
1823 if len(obj[attrname]) != 1:
1825 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1826 (len(obj[attrname]), attrname, str(obj.dn)))
1828 name_val = obj[attrname][0]
1830 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1831 object_rdn_attr = attrname
1832 if len(obj[attrname]) != 1:
1834 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1835 (len(obj[attrname]), attrname, str(obj.dn)))
1837 object_rdn_val = obj[attrname][0]
1839 if str(attrname).lower() == 'isdeleted':
1840 if obj[attrname][0] != "FALSE":
1843 if str(attrname).lower() == 'systemflags':
1844 systemFlags = int(obj[attrname][0])
1846 if str(attrname).lower() == 'replpropertymetadata':
1847 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1849 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1850 # We don't continue, as we may also have other fixes for this attribute
1851 # based on what other attributes we see.
1854 (set_attrs_from_md, list_attid_from_md, wrong_attids) \
1855 = self.process_metadata(dn, obj[attrname])
1858 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1861 if len(set_attrs_from_md) < len(list_attid_from_md) \
1862 or len(wrong_attids) > 0 \
1863 or sorted(list_attid_from_md) != list_attid_from_md:
1865 self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
1868 # Here we check that the first attid is 0
1870 if list_attid_from_md[0] != 0:
1872 self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
1873 (attrname, str(dn)))
1875 got_repl_property_meta_data = True
1878 if str(attrname).lower() == 'ntsecuritydescriptor':
1879 (sd, sd_broken) = self.process_sd(dn, obj)
1880 if sd_broken is not None:
1881 self.err_wrong_sd(dn, sd, sd_broken)
1885 if sd.owner_sid is None or sd.group_sid is None:
1886 self.err_missing_sd_owner(dn, sd)
1890 if self.reset_well_known_acls:
1892 well_known_sd = self.get_wellknown_sd(dn)
1896 current_sd = ndr_unpack(security.descriptor,
1897 str(obj[attrname][0]))
1899 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1901 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1906 if str(attrname).lower() == 'objectclass':
1907 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
1908 # Do not consider the attribute incorrect if:
1909 # - The sorted (alphabetically) list is the same, inclding case
1910 # - The first and last elements are the same
1912 # This avoids triggering an error due to
1913 # non-determinism in the sort routine in (at least)
1914 # 4.3 and earlier, and the fact that any AUX classes
1915 # in these attributes are also not sorted when
1916 # imported from Windows (they are just in the reverse
1917 # order of last set)
1918 if sorted(normalised) != sorted(obj[attrname]) \
1919 or normalised[0] != obj[attrname][0] \
1920 or normalised[-1] != obj[attrname][-1]:
1921 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1925 if str(attrname).lower() == 'userparameters':
1926 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1928 self.err_short_userParameters(obj, attrname, obj[attrname])
1931 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1932 # This is the correct, normal prefix
1935 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1936 # this is the typical prefix from a windows migration
1938 self.err_base64_userParameters(obj, attrname, obj[attrname])
1941 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':
1942 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1944 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1947 elif len(obj[attrname][0]) % 2 != 0:
1948 # This is a value that isn't even in length
1950 self.err_odd_userParameters(obj, attrname, obj[attrname])
1953 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':
1954 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1956 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1959 if attrname.lower() == 'attributeid' or attrname.lower() == 'governsid':
1960 if obj[attrname][0] in self.attribute_or_class_ids:
1962 self.report('Error: %s %s on %s already exists as an attributeId or governsId'
1963 % (attrname, obj.dn, obj[attrname][0]))
1965 self.attribute_or_class_ids.add(obj[attrname][0])
1967 # check for empty attributes
1968 for val in obj[attrname]:
1970 self.err_empty_attribute(dn, attrname)
1974 # get the syntax oid for the attribute, so we can can have
1975 # special handling for some specific attribute types
1977 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1978 except Exception, msg:
1979 self.err_unknown_attribute(obj, attrname)
1983 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
1985 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1986 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1987 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1989 set_attrs_seen.add(str(attrname).lower())
1991 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1992 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1993 # it's some form of DN, do specialised checking on those
1994 error_count += self.check_dn(obj, attrname, syntax_oid)
1998 # check for incorrectly normalised attributes
1999 for val in obj[attrname]:
2000 values.add(str(val))
2002 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
2003 if len(normalised) != 1 or normalised[0] != val:
2004 self.err_normalise_mismatch(dn, attrname, obj[attrname])
2008 if len(obj[attrname]) != len(values):
2009 self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
2013 if str(attrname).lower() == "instancetype":
2014 calculated_instancetype = self.calculate_instancetype(dn)
2015 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
2017 self.err_wrong_instancetype(obj, calculated_instancetype)
2019 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
2021 self.err_missing_objectclass(dn)
2023 if ("*" in attrs or "name" in map(str.lower, attrs)):
2024 if name_val is None:
2026 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
2027 if object_rdn_attr is None:
2029 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
2031 if name_val is not None:
2034 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
2035 parent_dn = deleted_objects_dn
2036 if parent_dn is None:
2037 parent_dn = obj.dn.parent()
2038 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
2039 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
2041 if obj.dn == deleted_objects_dn:
2042 expected_dn = obj.dn
2044 if expected_dn != obj.dn:
2046 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
2047 elif obj.dn.get_rdn_value() != object_rdn_val:
2049 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
2052 if got_repl_property_meta_data:
2053 if obj.dn == deleted_objects_dn:
2054 isDeletedAttId = 131120
2055 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
2057 expectedTimeDo = 2650466015990000000
2058 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
2059 if originating != expectedTimeDo:
2060 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
2061 nmsg = ldb.Message()
2063 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
2065 self.samdb.modify(nmsg, controls=["provision:0"])
2068 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
2070 for att in set_attrs_seen.difference(set_attrs_from_md):
2072 self.report("On object %s" % dn)
2075 self.report("ERROR: Attribute %s not present in replication metadata" % att)
2076 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
2077 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
2079 self.fix_metadata(obj, att)
2081 if self.is_fsmo_role(dn):
2082 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
2083 self.err_no_fsmoRoleOwner(obj)
2087 if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
2088 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
2089 controls=["show_recycled:1", "show_deleted:1"])
2090 except ldb.LdbError, (enum, estr):
2091 if enum == ldb.ERR_NO_SUCH_OBJECT:
2092 self.err_missing_parent(obj)
2097 if dn in self.deleted_objects_containers and '*' in attrs:
2098 if self.is_deleted_deleted_objects(obj):
2099 self.err_deleted_deleted_objects(obj)
2102 for (dns_part, msg) in self.dns_partitions:
2103 if dn == dns_part and 'repsFrom' in obj:
2104 location = "msDS-NC-Replica-Locations"
2105 if self.samdb.am_rodc():
2106 location = "msDS-NC-RO-Replica-Locations"
2108 if location not in msg:
2109 # There are no replica locations!
2110 self.err_replica_locations(obj, msg.dn, location)
2115 for loc in msg[location]:
2116 if loc == self.samdb.get_dsServiceName():
2119 # This DC is not in the replica locations
2120 self.err_replica_locations(obj, msg.dn, location)
2123 if dn == self.server_ref_dn:
2124 # Check we have a valid RID Set
2125 if "*" in attrs or "rIDSetReferences" in attrs:
2126 if "rIDSetReferences" not in obj:
2127 # NO RID SET reference
2128 # We are RID master, allocate it.
2131 if self.is_rid_master:
2132 # Allocate a RID Set
2133 if self.confirm_all('Allocate the missing RID set for RID master?',
2134 'fix_missing_rid_set_master'):
2136 # We don't have auto-transaction logic on
2137 # extended operations, so we have to do it
2140 self.samdb.transaction_start()
2143 self.samdb.create_own_rid_set()
2146 self.samdb.transaction_cancel()
2149 self.samdb.transaction_commit()
2152 elif not self.samdb.am_rodc():
2153 self.report("No RID Set found for this server: %s, and we are not the RID Master (so can not self-allocate)" % dn)
2156 # Check some details of our own RID Set
2157 if dn == self.rid_set_dn:
2158 res = self.samdb.search(base=self.rid_set_dn, scope=ldb.SCOPE_BASE,
2159 attrs=["rIDAllocationPool",
2160 "rIDPreviousAllocationPool",
2163 if "rIDAllocationPool" not in res[0]:
2164 self.report("No rIDAllocationPool found in %s" % dn)
2167 next_pool = int(res[0]["rIDAllocationPool"][0])
2169 high = (0xFFFFFFFF00000000 & next_pool) >> 32
2170 low = 0x00000000FFFFFFFF & next_pool
2173 self.report("Invalid RID set %d-%s, %d > %d!" % (low, high, low, high))
2176 if "rIDNextRID" in res[0]:
2177 next_free_rid = int(res[0]["rIDNextRID"][0])
2181 if next_free_rid == 0:
2186 # Check the remainder of this pool for conflicts. If
2187 # ridalloc_allocate_rid() moves to a new pool, this
2188 # will be above high, so we will stop.
2189 while next_free_rid <= high:
2190 sid = "%s-%d" % (self.samdb.get_domain_sid(), next_free_rid)
2192 res = self.samdb.search(base="<SID=%s>" % sid, scope=ldb.SCOPE_BASE,
2194 except ldb.LdbError, (enum, estr):
2195 if enum != ldb.ERR_NO_SUCH_OBJECT:
2199 self.report("SID %s for %s conflicts with our current RID set in %s" % (sid, res[0].dn, dn))
2202 if self.confirm_all('Fix conflict between SID %s and RID pool in %s by allocating a new RID?'
2204 'fix_sid_rid_set_conflict'):
2205 self.samdb.transaction_start()
2207 # This will burn RIDs, which will move
2208 # past the conflict. We then check again
2209 # to see if the new RID conflicts, until
2210 # the end of the current pool. We don't
2211 # look at the next pool to avoid burning
2212 # all RIDs in one go in some strange
2216 allocated_rid = self.samdb.allocate_rid()
2217 if allocated_rid >= next_free_rid:
2218 next_free_rid = allocated_rid + 1
2221 self.samdb.transaction_cancel()
2224 self.samdb.transaction_commit()
2233 ################################################################
2234 # check special @ROOTDSE attributes
2235 def check_rootdse(self):
2236 '''check the @ROOTDSE special object'''
2237 dn = ldb.Dn(self.samdb, '@ROOTDSE')
2239 self.report("Checking object %s" % dn)
2240 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
2242 self.report("Object %s disappeared during check" % dn)
2247 # check that the dsServiceName is in GUID form
2248 if not 'dsServiceName' in obj:
2249 self.report('ERROR: dsServiceName missing in @ROOTDSE')
2250 return error_count+1
2252 if not obj['dsServiceName'][0].startswith('<GUID='):
2253 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
2255 if not self.confirm('Change dsServiceName to GUID form?'):
2257 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
2258 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
2259 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
2262 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
2263 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
2264 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
2265 self.report("Changed dsServiceName to GUID form")
2269 ###############################################
2270 # re-index the database
2271 def reindex_database(self):
2272 '''re-index the whole database'''
2274 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
2275 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
2276 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
2277 return self.do_modify(m, [], 're-indexed database', validate=False)
2279 ###############################################
2281 def reset_modules(self):
2282 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
2284 m.dn = ldb.Dn(self.samdb, "@MODULES")
2285 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
2286 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)