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.duplicate_link_cache = dict()
69 self.recover_all_forward_links = False
70 self.fix_rmd_flags = False
71 self.fix_ntsecuritydescriptor = False
72 self.fix_ntsecuritydescriptor_owner_group = False
73 self.seize_fsmo_role = False
74 self.move_to_lost_and_found = False
75 self.fix_instancetype = False
76 self.fix_replmetadata_zero_invocationid = False
77 self.fix_replmetadata_duplicate_attid = False
78 self.fix_replmetadata_wrong_attid = False
79 self.fix_replmetadata_unsorted_attid = False
80 self.fix_deleted_deleted_objects = False
81 self.fix_incorrect_deleted_objects = False
83 self.fix_base64_userparameters = False
84 self.fix_utf8_userparameters = False
85 self.fix_doubled_userparameters = False
86 self.fix_sid_rid_set_conflict = False
87 self.reset_well_known_acls = reset_well_known_acls
88 self.reset_all_well_known_acls = False
89 self.in_transaction = in_transaction
90 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
91 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
92 self.schema_dn = samdb.get_schema_basedn()
93 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
94 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
95 self.class_schemaIDGUID = {}
96 self.wellknown_sds = get_wellknown_sds(self.samdb)
97 self.fix_all_missing_objectclass = False
98 self.fix_missing_deleted_objects = False
99 self.fix_replica_locations = False
100 self.fix_missing_rid_set_master = False
103 self.link_id_cache = {}
106 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
108 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
109 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
110 except ldb.LdbError, (enum, estr):
111 if enum != ldb.ERR_NO_SUCH_OBJECT:
115 self.system_session_info = system_session()
116 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
118 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
119 if "msDS-hasMasterNCs" in res[0]:
120 self.write_ncs = res[0]["msDS-hasMasterNCs"]
122 # If the Forest Level is less than 2003 then there is no
123 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
124 # no need to merge as all the NCs that are in hasMasterNCs must
125 # also be in msDS-hasMasterNCs (but not the opposite)
126 if "hasMasterNCs" in res[0]:
127 self.write_ncs = res[0]["hasMasterNCs"]
129 self.write_ncs = None
131 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
132 self.deleted_objects_containers = []
133 self.ncs_lacking_deleted_containers = []
134 self.dns_partitions = []
136 self.ncs = res[0]["namingContexts"]
144 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
145 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
146 self.deleted_objects_containers.append(dn)
148 self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc))
150 domaindns_zone = 'DC=DomainDnsZones,%s' % self.samdb.get_default_basedn()
151 forestdns_zone = 'DC=ForestDnsZones,%s' % self.samdb.get_root_basedn()
152 domain = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
153 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
154 base=self.samdb.get_partitions_dn(),
155 expression="(&(objectClass=crossRef)(ncName=%s))" % domaindns_zone)
157 self.dns_partitions.append((ldb.Dn(self.samdb, forestdns_zone), domain[0]))
159 forest = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
160 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
161 base=self.samdb.get_partitions_dn(),
162 expression="(&(objectClass=crossRef)(ncName=%s))" % forestdns_zone)
164 self.dns_partitions.append((ldb.Dn(self.samdb, domaindns_zone), forest[0]))
166 fsmo_dn = ldb.Dn(self.samdb, "CN=RID Manager$,CN=System," + self.samdb.domain_dn())
167 rid_master = get_fsmo_roleowner(self.samdb, fsmo_dn, "rid")
168 if ldb.Dn(self.samdb, self.samdb.get_dsServiceName()) == rid_master:
169 self.is_rid_master = True
171 self.is_rid_master = False
173 # To get your rid set
175 res = self.samdb.search(base=ldb.Dn(self.samdb, self.samdb.get_serverName()),
176 scope=ldb.SCOPE_BASE, attrs=["serverReference"])
177 # 2. Get server reference
178 self.server_ref_dn = ldb.Dn(self.samdb, res[0]['serverReference'][0])
181 res = self.samdb.search(base=self.server_ref_dn,
182 scope=ldb.SCOPE_BASE, attrs=['rIDSetReferences'])
183 if "rIDSetReferences" in res[0]:
184 self.rid_set_dn = ldb.Dn(self.samdb, res[0]['rIDSetReferences'][0])
186 self.rid_set_dn = None
188 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
189 '''perform a database check, returning the number of errors found'''
190 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
191 self.report('Checking %u objects' % len(res))
194 error_count += self.check_deleted_objects_containers()
196 self.attribute_or_class_ids = set()
199 self.dn_set.add(str(object.dn))
200 error_count += self.check_object(object.dn, attrs=attrs)
203 error_count += self.check_rootdse()
205 if error_count != 0 and not self.fix:
206 self.report("Please use --fix to fix these errors")
208 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
211 def check_deleted_objects_containers(self):
212 """This function only fixes conflicts on the Deleted Objects
213 containers, not the attributes"""
215 for nc in self.ncs_lacking_deleted_containers:
216 if nc == self.schema_dn:
219 self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
220 if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
223 dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
228 # If something already exists here, add a conflict
229 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
230 controls=["show_deleted:1", "extended_dn:1:1",
231 "show_recycled:1", "reveal_internals:0"])
233 guid = res[0].dn.get_extended_component("GUID")
234 conflict_dn = ldb.Dn(self.samdb,
235 "CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
236 conflict_dn.add_base(nc)
238 except ldb.LdbError, (enum, estr):
239 if enum == ldb.ERR_NO_SUCH_OBJECT:
242 self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
245 if conflict_dn is not None:
247 self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
248 except ldb.LdbError, (enum, estr):
249 self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
252 # Refresh wellKnownObjects links
253 res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
254 attrs=['wellKnownObjects'],
255 controls=["show_deleted:1", "extended_dn:0",
256 "show_recycled:1", "reveal_internals:0"])
258 self.report("wellKnownObjects was not found for NC %s" % nc)
261 # Prevent duplicate deleted objects containers just in case
262 wko = res[0]["wellKnownObjects"]
264 proposed_objectguid = None
266 dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
267 if self.is_deleted_objects_dn(dsdb_dn):
268 self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
269 # We really want to put this back in the same spot
270 # as the original one, so that on replication we
271 # merge, rather than conflict.
272 proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
275 if proposed_objectguid is not None:
276 guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
278 wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
279 listwko.append('%s:%s' % (wko_prefix, dn))
282 # Insert a brand new Deleted Objects container
283 self.samdb.add_ldif("""dn: %s
285 objectClass: container
286 description: Container for deleted objects
288 isCriticalSystemObject: TRUE
289 showInAdvancedViewOnly: TRUE
290 systemFlags: -1946157056%s""" % (dn, guid_suffix),
291 controls=["relax:0", "provision:0"])
293 delta = ldb.Message()
294 delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
295 delta["wellKnownObjects"] = ldb.MessageElement(listwko,
296 ldb.FLAG_MOD_REPLACE,
299 # Insert the link to the brand new container
300 if self.do_modify(delta, ["relax:0"],
301 "NC %s lacks Deleted Objects WKGUID" % nc,
303 self.report("Added %s well known guid link" % dn)
305 self.deleted_objects_containers.append(dn)
309 def report(self, msg):
310 '''print a message unless quiet is set'''
314 def confirm(self, msg, allow_all=False, forced=False):
315 '''confirm a change'''
322 return common.confirm(msg, forced=forced, allow_all=allow_all)
324 ################################################################
325 # a local confirm function with support for 'all'
326 def confirm_all(self, msg, all_attr):
327 '''confirm a change with support for "all" '''
330 if getattr(self, all_attr) == 'NONE':
332 if getattr(self, all_attr) == 'ALL':
338 c = common.confirm(msg, forced=forced, allow_all=True)
340 setattr(self, all_attr, 'ALL')
343 setattr(self, all_attr, 'NONE')
347 def do_delete(self, dn, controls, msg):
348 '''delete dn with optional verbose output'''
350 self.report("delete DN %s" % dn)
352 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
353 self.samdb.delete(dn, controls=controls)
354 except Exception, err:
355 if self.in_transaction:
356 raise CommandError("%s : %s" % (msg, err))
357 self.report("%s : %s" % (msg, err))
361 def do_modify(self, m, controls, msg, validate=True):
362 '''perform a modify with optional verbose output'''
364 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
366 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
367 self.samdb.modify(m, controls=controls, validate=validate)
368 except Exception, err:
369 if self.in_transaction:
370 raise CommandError("%s : %s" % (msg, err))
371 self.report("%s : %s" % (msg, err))
375 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
376 '''perform a modify with optional verbose output'''
378 self.report("""dn: %s
382 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
384 to_dn = to_rdn + to_base
385 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
386 self.samdb.rename(from_dn, to_dn, controls=controls)
387 except Exception, err:
388 if self.in_transaction:
389 raise CommandError("%s : %s" % (msg, err))
390 self.report("%s : %s" % (msg, err))
394 def get_attr_linkID_and_reverse_name(self, attrname):
395 if attrname in self.link_id_cache:
396 return self.link_id_cache[attrname]
397 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
399 revname = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
402 self.link_id_cache[attrname] = (linkID, revname)
403 return linkID, revname
405 def err_empty_attribute(self, dn, attrname):
406 '''fix empty attributes'''
407 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
408 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
409 self.report("Not fixing empty attribute %s" % attrname)
414 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
415 if self.do_modify(m, ["relax:0", "show_recycled:1"],
416 "Failed to remove empty attribute %s" % attrname, validate=False):
417 self.report("Removed empty attribute %s" % attrname)
419 def err_normalise_mismatch(self, dn, attrname, values):
420 '''fix attribute normalisation errors'''
421 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
424 normalised = self.samdb.dsdb_normalise_attributes(
425 self.samdb_schema, attrname, [val])
426 if len(normalised) != 1:
427 self.report("Unable to normalise value '%s'" % val)
428 mod_list.append((val, ''))
429 elif (normalised[0] != val):
430 self.report("value '%s' should be '%s'" % (val, normalised[0]))
431 mod_list.append((val, normalised[0]))
432 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
433 self.report("Not fixing attribute %s" % attrname)
438 for i in range(0, len(mod_list)):
439 (val, nval) = mod_list[i]
440 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
442 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
445 if self.do_modify(m, ["relax:0", "show_recycled:1"],
446 "Failed to normalise attribute %s" % attrname,
448 self.report("Normalised attribute %s" % attrname)
450 def err_normalise_mismatch_replace(self, dn, attrname, values):
451 '''fix attribute normalisation errors'''
452 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
453 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
454 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
455 if list(normalised) == values:
457 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
458 self.report("Not fixing attribute '%s'" % attrname)
463 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
465 if self.do_modify(m, ["relax:0", "show_recycled:1"],
466 "Failed to normalise attribute %s" % attrname,
468 self.report("Normalised attribute %s" % attrname)
470 def err_duplicate_values(self, dn, attrname, dup_values, values):
471 '''fix attribute normalisation errors'''
472 self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
473 self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
474 if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
475 self.report("Not fixing attribute '%s'" % attrname)
480 m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
482 if self.do_modify(m, ["relax:0", "show_recycled:1"],
483 "Failed to remove duplicate value on attribute %s" % attrname,
485 self.report("Removed duplicate value on attribute %s" % attrname)
487 def is_deleted_objects_dn(self, dsdb_dn):
488 '''see if a dsdb_Dn is the special Deleted Objects DN'''
489 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
491 def err_missing_objectclass(self, dn):
492 """handle object without objectclass"""
493 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)))
494 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'):
495 self.report("Not deleting object with missing objectclass '%s'" % dn)
497 if self.do_delete(dn, ["relax:0"],
498 "Failed to remove DN %s" % dn):
499 self.report("Removed DN %s" % dn)
501 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn, remove_plausible=False):
502 """handle a DN pointing to a deleted object"""
503 if not remove_plausible:
504 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
505 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
506 if not self.confirm_all('Remove DN link?', 'remove_implausible_deleted_DN_links'):
507 self.report("Not removing")
510 self.report("WARNING: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
511 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
512 if not self.confirm_all('Remove stale DN link?', 'remove_plausible_deleted_DN_links'):
513 self.report("Not removing")
518 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
519 if self.do_modify(m, ["show_recycled:1",
520 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
521 "Failed to remove deleted DN attribute %s" % attrname):
522 self.report("Removed deleted DN on attribute %s" % attrname)
524 def err_missing_target_dn_or_GUID(self, dn, attrname, val, dsdb_dn):
525 """handle a missing target DN (if specified, GUID form can't be found,
526 and otherwise DN string form can't be found)"""
527 # check if its a backlink
528 linkID, _ = self.get_attr_linkID_and_reverse_name(attrname)
529 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
531 linkID, reverse_link_name \
532 = self.get_attr_linkID_and_reverse_name(attrname)
533 if reverse_link_name is not None:
534 self.report("WARNING: no target object found for GUID "
535 "component for one-way forward link "
537 "%s - %s" % (attrname, dn, val))
538 self.report("Not removing dangling forward link")
541 nc_root = self.samdb.get_nc_root(dn)
542 target_nc_root = self.samdb.get_nc_root(dsdb_dn.dn)
543 if nc_root != target_nc_root:
544 # We don't bump the error count as Samba produces these
545 # in normal operation
546 self.report("WARNING: no target object found for GUID "
547 "component for cross-partition link "
549 "%s - %s" % (attrname, dn, val))
550 self.report("Not removing dangling one-way "
551 "cross-partition link "
552 "(we might be mid-replication)")
555 # Due to our link handling one-way links pointing to
556 # missing objects are plausible.
558 # We don't bump the error count as Samba produces these
559 # in normal operation
560 self.report("WARNING: no target object found for GUID "
561 "component for DN value %s in object "
562 "%s - %s" % (attrname, dn, val))
563 self.err_deleted_dn(dn, attrname, val,
564 dsdb_dn, dsdb_dn, True)
567 # We bump the error count here, as we should have deleted this
568 self.report("ERROR: no target object found for GUID "
569 "component for link %s in object "
570 "%s - %s" % (attrname, dn, val))
571 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn, False)
574 def err_missing_dn_GUID_component(self, dn, attrname, val, dsdb_dn, errstr):
575 """handle a missing GUID extended DN component"""
576 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
577 controls=["extended_dn:1:1", "show_recycled:1"]
579 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
580 attrs=[], controls=controls)
581 except ldb.LdbError, (enum, estr):
582 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
583 if enum != ldb.ERR_NO_SUCH_OBJECT:
585 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
588 self.report("unable to find object for DN %s" % dsdb_dn.dn)
589 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
591 dsdb_dn.dn = res[0].dn
593 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
594 self.report("Not fixing %s" % errstr)
598 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
599 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
601 if self.do_modify(m, ["show_recycled:1"],
602 "Failed to fix %s on attribute %s" % (errstr, attrname)):
603 self.report("Fixed %s on attribute %s" % (errstr, attrname))
605 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
606 """handle an incorrect binary DN component"""
607 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
608 controls=["extended_dn:1:1", "show_recycled:1"]
610 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
611 self.report("Not fixing %s" % errstr)
615 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
616 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
618 if self.do_modify(m, ["show_recycled:1"],
619 "Failed to fix %s on attribute %s" % (errstr, attrname)):
620 self.report("Fixed %s on attribute %s" % (errstr, attrname))
622 def err_dn_string_component_old(self, dn, attrname, val, dsdb_dn, correct_dn):
623 """handle a DN string being incorrect"""
624 self.report("NOTE: old (due to rename or delete) DN string component for %s in object %s - %s" % (attrname, dn, val))
625 dsdb_dn.dn = correct_dn
627 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
628 'fix_all_old_dn_string_component_mismatch'):
629 self.report("Not fixing old string component")
633 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
634 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
635 if self.do_modify(m, ["show_recycled:1"],
636 "Failed to fix old DN string on attribute %s" % (attrname)):
637 self.report("Fixed old DN string on attribute %s" % (attrname))
639 def err_dn_component_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, mismatch_type):
640 """handle a DN string being incorrect"""
641 self.report("ERROR: incorrect DN %s component for %s in object %s - %s" % (mismatch_type, attrname, dn, val))
642 dsdb_dn.dn = correct_dn
644 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
645 'fix_all_%s_dn_component_mismatch' % mismatch_type):
646 self.report("Not fixing %s component mismatch" % mismatch_type)
650 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
651 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
652 if self.do_modify(m, ["show_recycled:1"],
653 "Failed to fix incorrect DN %s on attribute %s" % (mismatch_type, attrname)):
654 self.report("Fixed incorrect DN %s on attribute %s" % (mismatch_type, attrname))
656 def err_unknown_attribute(self, obj, attrname):
657 '''handle an unknown attribute error'''
658 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
659 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
660 self.report("Not removing %s" % attrname)
664 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
665 if self.do_modify(m, ["relax:0", "show_recycled:1"],
666 "Failed to remove unknown attribute %s" % attrname):
667 self.report("Removed unknown attribute %s" % (attrname))
669 def err_undead_linked_attribute(self, obj, attrname, val):
670 '''handle a link that should not be there on a deleted object'''
671 self.report("ERROR: linked attribute '%s' to '%s' is present on "
672 "deleted object %s" % (attrname, val, obj.dn))
673 if not self.confirm_all('Remove linked attribute %s' % attrname, 'fix_undead_linked_attributes'):
674 self.report("Not removing linked attribute %s" % attrname)
678 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
680 if self.do_modify(m, ["show_recycled:1", "show_deleted:1", "reveal_internals:0",
681 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
682 "Failed to delete forward link %s" % attrname):
683 self.report("Fixed undead forward link %s" % (attrname))
685 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
686 '''handle a missing backlink value'''
687 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
688 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
689 self.report("Not fixing missing backlink %s" % backlink_name)
693 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, backlink_name)
694 if self.do_modify(m, ["show_recycled:1", "relax:0"],
695 "Failed to fix missing backlink %s" % backlink_name):
696 self.report("Fixed missing backlink %s" % (backlink_name))
698 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
699 '''handle a incorrect RMD_FLAGS value'''
700 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
701 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()))
702 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
703 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
707 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
708 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
709 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
710 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
712 def err_orphaned_backlink(self, obj_dn, backlink_attr, backlink_val,
713 target_dn, forward_attr, forward_syntax):
714 '''handle a orphaned backlink value'''
715 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (backlink_attr, obj_dn, forward_attr, target_dn))
716 if not self.confirm_all('Remove orphaned backlink %s' % backlink_attr, 'fix_all_orphaned_backlinks'):
717 self.report("Not removing orphaned backlink %s" % backlink_attr)
721 m['value'] = ldb.MessageElement(backlink_val, ldb.FLAG_MOD_DELETE, backlink_attr)
722 if self.do_modify(m, ["show_recycled:1", "relax:0"],
723 "Failed to fix orphaned backlink %s" % backlink_attr):
724 self.report("Fixed orphaned backlink %s" % (backlink_attr))
726 def err_recover_forward_links(self, obj, forward_attr, forward_vals):
727 '''handle a duplicate links value'''
729 self.report("RECHECK: 'Duplicate/Correct link' lines above for attribute '%s' in '%s'" % (forward_attr, obj.dn))
731 if not self.confirm_all("Commit fixes for (duplicate) forward links in attribute '%s'" % forward_attr, 'recover_all_forward_links'):
732 self.report("Not fixing corrupted (duplicate) forward links in attribute '%s' of '%s'" % (
733 forward_attr, obj.dn))
737 m['value'] = ldb.MessageElement(forward_vals, ldb.FLAG_MOD_REPLACE, forward_attr)
738 if self.do_modify(m, ["local_oid:1.3.6.1.4.1.7165.4.3.19.2:1"],
739 "Failed to fix duplicate links in attribute '%s'" % forward_attr):
740 self.report("Fixed duplicate links in attribute '%s'" % (forward_attr))
742 def err_no_fsmoRoleOwner(self, obj):
743 '''handle a missing fSMORoleOwner'''
744 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
745 res = self.samdb.search("",
746 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
748 serviceName = res[0]["dsServiceName"][0]
749 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
750 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
754 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
755 if self.do_modify(m, [],
756 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
757 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
759 def err_missing_parent(self, obj):
760 '''handle a missing parent'''
761 self.report("ERROR: parent object not found for %s" % (obj.dn))
762 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
763 self.report('Not moving object %s into LostAndFound' % (obj.dn))
766 keep_transaction = False
767 self.samdb.transaction_start()
769 nc_root = self.samdb.get_nc_root(obj.dn);
770 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
771 new_dn = ldb.Dn(self.samdb, str(obj.dn))
772 new_dn.remove_base_components(len(new_dn) - 1)
773 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
774 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
775 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
779 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
781 if self.do_modify(m, [],
782 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
783 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
784 keep_transaction = True
786 self.samdb.transaction_cancel()
790 self.samdb.transaction_commit()
792 self.samdb.transaction_cancel()
794 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
795 '''handle a wrong dn'''
797 new_rdn = ldb.Dn(self.samdb, str(new_dn))
798 new_rdn.remove_base_components(len(new_rdn) - 1)
799 new_parent = new_dn.parent()
802 if rdn_val != name_val:
803 attributes += "%s=%r " % (rdn_attr, rdn_val)
804 attributes += "name=%r" % (name_val)
806 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
807 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
808 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
811 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
812 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
813 self.report("Renamed %s into %s" % (obj.dn, new_dn))
815 def err_wrong_instancetype(self, obj, calculated_instancetype):
816 '''handle a wrong instanceType'''
817 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
818 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
819 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
824 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
825 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
826 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
827 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
829 def err_short_userParameters(self, obj, attrname, value):
830 # This is a truncated userParameters due to a pre 4.1 replication bug
831 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)))
833 def err_base64_userParameters(self, obj, attrname, value):
834 '''handle a wrong userParameters'''
835 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
836 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
837 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
842 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
843 if self.do_modify(m, [],
844 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
845 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
847 def err_utf8_userParameters(self, obj, attrname, value):
848 '''handle a wrong userParameters'''
849 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
850 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
851 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
856 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
857 ldb.FLAG_MOD_REPLACE, 'userParameters')
858 if self.do_modify(m, [],
859 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
860 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
862 def err_doubled_userParameters(self, obj, attrname, value):
863 '''handle a wrong userParameters'''
864 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
865 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
866 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
871 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
872 ldb.FLAG_MOD_REPLACE, 'userParameters')
873 if self.do_modify(m, [],
874 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
875 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
877 def err_odd_userParameters(self, obj, attrname):
878 # This is a truncated userParameters due to a pre 4.1 replication bug
879 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)))
881 def find_revealed_link(self, dn, attrname, guid):
882 '''return a revealed link in an object'''
883 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
884 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
885 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
886 for val in res[0][attrname]:
887 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
888 guid2 = dsdb_dn.dn.get_extended_component("GUID")
893 def check_duplicate_links(self, obj, forward_attr, forward_syntax, forward_linkID, backlink_attr):
894 '''check a linked values for duplicate forward links'''
897 duplicate_dict = dict()
900 # Only forward links can have this problem
901 if forward_linkID & 1:
902 # If we got the reverse, skip it
903 return (error_count, duplicate_dict, unique_dict)
905 if backlink_attr is None:
906 return (error_count, duplicate_dict, unique_dict)
908 duplicate_cache_key = "%s:%s" % (str(obj.dn), forward_attr)
909 if duplicate_cache_key not in self.duplicate_link_cache:
910 self.duplicate_link_cache[duplicate_cache_key] = False
912 for val in obj[forward_attr]:
913 dsdb_dn = dsdb_Dn(self.samdb, val, forward_syntax)
915 # all DNs should have a GUID component
916 guid = dsdb_dn.dn.get_extended_component("GUID")
919 guidstr = str(misc.GUID(guid))
920 keystr = guidstr + dsdb_dn.prefix
921 if keystr not in unique_dict:
922 unique_dict[keystr] = dsdb_dn
925 if keystr not in duplicate_dict:
926 duplicate_dict[keystr] = dict()
927 duplicate_dict[keystr]["keep"] = None
928 duplicate_dict[keystr]["delete"] = list()
930 # Now check for the highest RMD_VERSION
931 v1 = int(unique_dict[keystr].dn.get_extended_component("RMD_VERSION"))
932 v2 = int(dsdb_dn.dn.get_extended_component("RMD_VERSION"))
934 duplicate_dict[keystr]["keep"] = unique_dict[keystr]
935 duplicate_dict[keystr]["delete"].append(dsdb_dn)
938 duplicate_dict[keystr]["keep"] = dsdb_dn
939 duplicate_dict[keystr]["delete"].append(unique_dict[keystr])
940 unique_dict[keystr] = dsdb_dn
942 # Fallback to the highest RMD_LOCAL_USN
943 u1 = int(unique_dict[keystr].dn.get_extended_component("RMD_LOCAL_USN"))
944 u2 = int(dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN"))
946 duplicate_dict[keystr]["keep"] = unique_dict[keystr]
947 duplicate_dict[keystr]["delete"].append(dsdb_dn)
949 duplicate_dict[keystr]["keep"] = dsdb_dn
950 duplicate_dict[keystr]["delete"].append(unique_dict[keystr])
951 unique_dict[keystr] = dsdb_dn
954 self.duplicate_link_cache[duplicate_cache_key] = True
956 return (error_count, duplicate_dict, unique_dict)
958 def check_dn(self, obj, attrname, syntax_oid):
959 '''check a DN attribute for correctness'''
961 obj_guid = obj['objectGUID'][0]
963 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
964 if reverse_link_name is not None:
965 reverse_syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(reverse_link_name)
967 reverse_syntax_oid = None
969 error_count, duplicate_dict, unique_dict = \
970 self.check_duplicate_links(obj, attrname, syntax_oid, linkID, reverse_link_name)
972 if len(duplicate_dict) != 0:
973 self.report("ERROR: Duplicate forward link values for attribute '%s' in '%s'" % (attrname, obj.dn))
974 for keystr in duplicate_dict.keys():
975 d = duplicate_dict[keystr]
976 for dd in d["delete"]:
977 self.report("Duplicate link '%s'" % dd)
978 self.report("Correct link '%s'" % d["keep"])
980 # We now construct the sorted dn values.
981 # They're sorted by the objectGUID of the target
982 # See dsdb_Dn.__cmp__()
983 vals = [str(dn) for dn in sorted(unique_dict.values())]
984 self.err_recover_forward_links(obj, attrname, vals)
985 # We should continue with the fixed values
986 obj[attrname] = ldb.MessageElement(vals, 0, attrname)
988 for val in obj[attrname]:
989 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
991 # all DNs should have a GUID component
992 guid = dsdb_dn.dn.get_extended_component("GUID")
995 self.err_missing_dn_GUID_component(obj.dn, attrname, val, dsdb_dn,
999 guidstr = str(misc.GUID(guid))
1000 attrs = ['isDeleted', 'replPropertyMetaData']
1002 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
1003 fixing_msDS_HasInstantiatedNCs = True
1004 attrs.append("instanceType")
1006 fixing_msDS_HasInstantiatedNCs = False
1008 if reverse_link_name is not None:
1009 attrs.append(reverse_link_name)
1011 # check its the right GUID
1013 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
1014 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1",
1015 "reveal_internals:0"
1017 except ldb.LdbError, (enum, estr):
1018 if enum != ldb.ERR_NO_SUCH_OBJECT:
1021 # We don't always want to
1022 error_count += self.err_missing_target_dn_or_GUID(obj.dn,
1028 if fixing_msDS_HasInstantiatedNCs:
1029 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
1030 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
1032 if str(dsdb_dn) != val:
1034 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
1037 # now we have two cases - the source object might or might not be deleted
1038 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
1039 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
1042 if is_deleted and not obj.dn in self.deleted_objects_containers and linkID:
1043 # A fully deleted object should not have any linked
1044 # attributes. (MS-ADTS 3.1.1.5.5.1.1 Tombstone
1045 # Requirements and 3.1.1.5.5.1.3 Recycled-Object
1047 self.err_undead_linked_attribute(obj, attrname, val)
1050 elif target_is_deleted and not self.is_deleted_objects_dn(dsdb_dn) and linkID:
1051 # the target DN is not allowed to be deleted, unless the target DN is the
1052 # special Deleted Objects container
1054 local_usn = dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN")
1056 if 'replPropertyMetaData' in res[0]:
1057 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1058 str(res[0]['replPropertyMetadata']))
1060 for o in repl.ctr.array:
1061 if o.attid == drsuapi.DRSUAPI_ATTID_isDeleted:
1062 deleted_usn = o.local_usn
1063 if deleted_usn >= int(local_usn):
1064 # If the object was deleted after the link
1065 # was last modified then, clean it up here
1070 self.err_deleted_dn(obj.dn, attrname,
1071 val, dsdb_dn, res[0].dn, True)
1074 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn, False)
1077 # We should not check for incorrect
1078 # components on deleted links, as these are allowed to
1079 # go stale (we just need the GUID, not the name)
1080 rmd_blob = dsdb_dn.dn.get_extended_component("RMD_FLAGS")
1082 if rmd_blob is not None:
1083 rmd_flags = int(rmd_blob)
1085 # assert the DN matches in string form, where a reverse
1086 # link exists, otherwise (below) offer to fix it as a non-error.
1087 # The string form is essentially only kept for forensics,
1088 # as we always re-resolve by GUID in normal operations.
1089 if not rmd_flags & 1 and reverse_link_name is not None:
1090 if str(res[0].dn) != str(dsdb_dn.dn):
1092 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1093 res[0].dn, "string")
1096 if res[0].dn.get_extended_component("GUID") != dsdb_dn.dn.get_extended_component("GUID"):
1098 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1102 if res[0].dn.get_extended_component("SID") != dsdb_dn.dn.get_extended_component("SID"):
1104 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1108 # Now we have checked the GUID and SID, offer to fix old
1109 # DN strings as a non-error (for forward links with no
1110 # backlink). Samba does not maintain this string
1111 # otherwise, so we don't increment error_count.
1112 if reverse_link_name is None:
1113 if str(res[0].dn) != str(dsdb_dn.dn):
1114 self.err_dn_string_component_old(obj.dn, attrname, val, dsdb_dn,
1118 # check the reverse_link is correct if there should be one
1120 if reverse_link_name in res[0]:
1121 for v in res[0][reverse_link_name]:
1122 v_dn = dsdb_Dn(self.samdb, v)
1123 v_guid = v_dn.dn.get_extended_component("GUID")
1124 v_blob = v_dn.dn.get_extended_component("RMD_FLAGS")
1126 if v_blob is not None:
1127 v_rmd_flags = int(v_blob)
1130 if v_guid == obj_guid:
1133 if match_count != 1:
1134 if syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN or reverse_syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN:
1136 # Forward binary multi-valued linked attribute
1138 for w in obj[attrname]:
1139 w_guid = dsdb_Dn(self.samdb, w).dn.get_extended_component("GUID")
1143 if match_count == forward_count:
1146 for v in obj[attrname]:
1147 v_dn = dsdb_Dn(self.samdb, v)
1148 v_guid = v_dn.dn.get_extended_component("GUID")
1149 v_blob = v_dn.dn.get_extended_component("RMD_FLAGS")
1151 if v_blob is not None:
1152 v_rmd_flags = int(v_blob)
1158 if match_count == expected_count:
1161 diff_count = expected_count - match_count
1164 # If there's a backward link on binary multi-valued linked attribute,
1165 # let the check on the forward link remedy the value.
1166 # UNLESS, there is no forward link detected.
1167 if match_count == 0:
1169 self.err_orphaned_backlink(obj.dn, attrname,
1174 # Only warn here and let the forward link logic fix it.
1175 self.report("WARNING: Link (back) mismatch for '%s' (%d) on '%s' to '%s' (%d) on '%s'" % (
1176 attrname, expected_count, str(obj.dn),
1177 reverse_link_name, match_count, str(dsdb_dn.dn)))
1180 assert not target_is_deleted
1182 self.report("ERROR: Link (forward) mismatch for '%s' (%d) on '%s' to '%s' (%d) on '%s'" % (
1183 attrname, expected_count, str(obj.dn),
1184 reverse_link_name, match_count, str(dsdb_dn.dn)))
1186 # Loop until the difference between the forward and
1187 # the backward links is resolved.
1188 while diff_count != 0:
1191 if match_count > 0 or diff_count > 1:
1192 # TODO no method to fix these right now
1193 self.report("ERROR: Can't fix missing "
1194 "multi-valued backlinks on %s" % str(dsdb_dn.dn))
1196 self.err_missing_backlink(obj, attrname,
1197 obj.dn.extended_str(),
1202 self.err_orphaned_backlink(res[0].dn, reverse_link_name,
1203 obj.dn.extended_str(), obj.dn,
1204 attrname, syntax_oid)
1211 def get_originating_time(self, val, attid):
1212 '''Read metadata properties and return the originating time for
1213 a given attributeId.
1215 :return: the originating time or 0 if not found
1218 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1221 for o in repl.ctr.array:
1222 if o.attid == attid:
1223 return o.originating_change_time
1227 def process_metadata(self, dn, val):
1228 '''Read metadata properties and list attributes in it.
1229 raises KeyError if the attid is unknown.'''
1232 wrong_attids = set()
1234 in_schema_nc = dn.is_child_of(self.schema_dn)
1236 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1239 for o in repl.ctr.array:
1240 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1241 set_att.add(att.lower())
1242 list_attid.append(o.attid)
1243 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
1244 is_schema_nc=in_schema_nc)
1245 if correct_attid != o.attid:
1246 wrong_attids.add(o.attid)
1248 return (set_att, list_attid, wrong_attids)
1251 def fix_metadata(self, obj, attr):
1252 '''re-write replPropertyMetaData elements for a single attribute for a
1253 object. This is used to fix missing replPropertyMetaData elements'''
1254 guid_str = str(ndr_unpack(misc.GUID, obj['objectGUID'][0]))
1255 dn = ldb.Dn(self.samdb, "<GUID=%s>" % guid_str)
1256 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
1257 controls = ["search_options:1:2",
1260 nmsg = ldb.Message()
1262 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
1263 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
1264 "Failed to fix metadata for attribute %s" % attr):
1265 self.report("Fixed metadata for attribute %s" % attr)
1267 def ace_get_effective_inherited_type(self, ace):
1268 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
1272 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
1274 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
1276 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
1278 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
1284 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
1287 return str(ace.object.inherited_type)
1289 def lookup_class_schemaIDGUID(self, cls):
1290 if cls in self.class_schemaIDGUID:
1291 return self.class_schemaIDGUID[cls]
1293 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
1294 res = self.samdb.search(base=self.schema_dn,
1296 attrs=["schemaIDGUID"])
1297 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
1299 self.class_schemaIDGUID[cls] = t
1302 def process_sd(self, dn, obj):
1303 sd_attr = "nTSecurityDescriptor"
1304 sd_val = obj[sd_attr]
1306 sd = ndr_unpack(security.descriptor, str(sd_val))
1308 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
1310 # we don't fix deleted objects
1313 sd_clean = security.descriptor()
1314 sd_clean.owner_sid = sd.owner_sid
1315 sd_clean.group_sid = sd.group_sid
1316 sd_clean.type = sd.type
1317 sd_clean.revision = sd.revision
1320 last_inherited_type = None
1323 if sd.sacl is not None:
1325 for i in range(0, len(aces)):
1328 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1329 sd_clean.sacl_add(ace)
1332 t = self.ace_get_effective_inherited_type(ace)
1336 if last_inherited_type is not None:
1337 if t != last_inherited_type:
1338 # if it inherited from more than
1339 # one type it's very likely to be broken
1341 # If not the recalculation will calculate
1346 last_inherited_type = t
1349 if sd.dacl is not None:
1351 for i in range(0, len(aces)):
1354 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1355 sd_clean.dacl_add(ace)
1358 t = self.ace_get_effective_inherited_type(ace)
1362 if last_inherited_type is not None:
1363 if t != last_inherited_type:
1364 # if it inherited from more than
1365 # one type it's very likely to be broken
1367 # If not the recalculation will calculate
1372 last_inherited_type = t
1375 return (sd_clean, sd)
1377 if last_inherited_type is None:
1383 cls = obj["objectClass"][-1]
1388 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1389 attrs=["isDeleted", "objectClass"],
1390 controls=["show_recycled:1"])
1392 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
1394 # we don't fix deleted objects
1396 cls = o["objectClass"][-1]
1398 t = self.lookup_class_schemaIDGUID(cls)
1400 if t != last_inherited_type:
1402 return (sd_clean, sd)
1407 def err_wrong_sd(self, dn, sd, sd_broken):
1408 '''re-write the SD due to incorrect inherited ACEs'''
1409 sd_attr = "nTSecurityDescriptor"
1410 sd_val = ndr_pack(sd)
1411 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1413 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
1414 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
1417 nmsg = ldb.Message()
1419 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1420 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1421 "Failed to fix attribute %s" % sd_attr):
1422 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1424 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
1425 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
1426 sd_attr = "nTSecurityDescriptor"
1427 sd_val = ndr_pack(sd)
1428 sd_old_val = ndr_pack(sd_old)
1429 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1430 if sd.owner_sid is not None:
1431 sd_flags |= security.SECINFO_OWNER
1432 if sd.group_sid is not None:
1433 sd_flags |= security.SECINFO_GROUP
1435 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
1436 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
1441 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1442 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
1443 "Failed to reset attribute %s" % sd_attr):
1444 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1446 def err_missing_sd_owner(self, dn, sd):
1447 '''re-write the SD due to a missing owner or group'''
1448 sd_attr = "nTSecurityDescriptor"
1449 sd_val = ndr_pack(sd)
1450 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
1452 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
1453 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
1456 nmsg = ldb.Message()
1458 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1460 # By setting the session_info to admin_session_info and
1461 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
1462 # flags we cause the descriptor module to set the correct
1463 # owner and group on the SD, replacing the None/NULL values
1464 # for owner_sid and group_sid currently present.
1466 # The admin_session_info matches that used in provision, and
1467 # is the best guess we can make for an existing object that
1468 # hasn't had something specifically set.
1470 # This is important for the dns related naming contexts.
1471 self.samdb.set_session_info(self.admin_session_info)
1472 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1473 "Failed to fix metadata for attribute %s" % sd_attr):
1474 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1475 self.samdb.set_session_info(self.system_session_info)
1478 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
1479 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1480 str(repl_meta_data))
1484 # Search for a zero invocationID
1485 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1489 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
1490 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
1491 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
1492 % (dn, o.attid, o.version,
1493 time.ctime(samba.nttime2unix(o.originating_change_time)),
1494 self.samdb.get_invocation_id()))
1499 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
1500 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1501 str(repl_meta_data))
1503 now = samba.unix2nttime(int(time.time()))
1506 # Search for a zero invocationID
1507 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1511 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
1512 o.version = o.version + 1
1513 o.originating_change_time = now
1514 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
1515 o.originating_usn = seq
1519 replBlob = ndr_pack(repl)
1523 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
1524 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
1525 self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
1528 nmsg = ldb.Message()
1530 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1531 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1532 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
1533 "Failed to fix attribute %s" % attr):
1534 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1537 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1538 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1539 str(repl_meta_data))
1542 # Search for an invalid attid
1544 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1546 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1550 def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
1551 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1552 str(repl_meta_data))
1556 remove_attid = set()
1559 in_schema_nc = dn.is_child_of(self.schema_dn)
1562 # Sort the array, except for the last element. This strange
1563 # construction, creating a new list, due to bugs in samba's
1564 # array handling in IDL generated objects.
1565 ctr.array = sorted(ctr.array[:], key=lambda o: o.attid)
1566 # Now walk it in reverse, so we see the low (and so incorrect,
1567 # the correct values are above 0x80000000) values first and
1568 # remove the 'second' value we see.
1569 for o in reversed(ctr.array):
1570 print "%s: 0x%08x" % (dn, o.attid)
1571 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1572 if att.lower() in set_att:
1573 self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
1574 if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
1575 % (attr, dn, o.attid, att, hash_att[att].attid),
1576 'fix_replmetadata_duplicate_attid'):
1577 self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
1578 % (o.attid, att, attr, dn))
1581 remove_attid.add(o.attid)
1582 # We want to set the metadata for the most recent
1583 # update to have been applied locally, that is the metadata
1584 # matching the (eg string) value in the attribute
1585 if o.local_usn > hash_att[att].local_usn:
1586 # This is always what we would have sent over DRS,
1587 # because the DRS server will have sent the
1588 # msDS-IntID, but with the values from both
1589 # attribute entries.
1590 hash_att[att].version = o.version
1591 hash_att[att].originating_change_time = o.originating_change_time
1592 hash_att[att].originating_invocation_id = o.originating_invocation_id
1593 hash_att[att].originating_usn = o.originating_usn
1594 hash_att[att].local_usn = o.local_usn
1596 # Do not re-add the value to the set or overwrite the hash value
1600 set_att.add(att.lower())
1602 # Generate a real list we can sort on properly
1603 new_list = [o for o in ctr.array if o.attid not in remove_attid]
1605 if (len(wrong_attids) > 0):
1607 if o.attid in wrong_attids:
1608 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1609 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
1610 self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
1611 if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
1612 % (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
1613 self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
1614 % (o.attid, correct_attid, att, attr, dn))
1617 o.attid = correct_attid
1619 # Sort the array, (we changed the value so must re-sort)
1620 new_list[:] = sorted(new_list[:], key=lambda o: o.attid)
1622 # If we did not already need to fix it, then ask about sorting
1624 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1625 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1626 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1627 self.report('Not fixing %s on %s\n' % (attr, dn))
1630 # The actual sort done is done at the top of the function
1632 ctr.count = len(new_list)
1633 ctr.array = new_list
1634 replBlob = ndr_pack(repl)
1636 nmsg = ldb.Message()
1638 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1639 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1640 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1641 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1642 "Failed to fix attribute %s" % attr):
1643 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1646 def is_deleted_deleted_objects(self, obj):
1648 if "description" not in obj:
1649 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1651 if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
1652 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1654 if "objectCategory" not in obj:
1655 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1657 if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
1658 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1660 if "isRecycled" in obj:
1661 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1663 if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
1664 self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
1666 if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
1667 obj['objectClass'][0] != 'top' or
1668 obj['objectClass'][1] != 'container'):
1669 self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
1671 if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
1672 self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
1676 def err_deleted_deleted_objects(self, obj):
1677 nmsg = ldb.Message()
1678 nmsg.dn = dn = obj.dn
1680 if "description" not in obj:
1681 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1682 if "showInAdvancedViewOnly" not in obj:
1683 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1684 if "objectCategory" not in obj:
1685 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1686 if "isCriticalSystemObject" not in obj:
1687 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1688 if "isRecycled" in obj:
1689 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1691 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1692 nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
1693 nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
1695 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1696 % (dn), 'fix_deleted_deleted_objects'):
1697 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1700 if self.do_modify(nmsg, ["relax:0"],
1701 "Failed to fix Deleted Objects container %s" % dn):
1702 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1704 def err_replica_locations(self, obj, cross_ref, attr):
1705 nmsg = ldb.Message()
1707 target = self.samdb.get_dsServiceName()
1709 if self.samdb.am_rodc():
1710 self.report('Not fixing %s for the RODC' % (attr, obj.dn))
1713 if not self.confirm_all('Add yourself to the replica locations for %s?'
1714 % (obj.dn), 'fix_replica_locations'):
1715 self.report('Not fixing missing/incorrect attributes on %s\n' % (obj.dn))
1718 nmsg[attr] = ldb.MessageElement(target, ldb.FLAG_MOD_ADD, attr)
1719 if self.do_modify(nmsg, [], "Failed to add %s for %s" % (attr, obj.dn)):
1720 self.report("Fixed %s for %s" % (attr, obj.dn))
1722 def is_fsmo_role(self, dn):
1723 if dn == self.samdb.domain_dn:
1725 if dn == self.infrastructure_dn:
1727 if dn == self.naming_dn:
1729 if dn == self.schema_dn:
1731 if dn == self.rid_dn:
1736 def calculate_instancetype(self, dn):
1738 nc_root = self.samdb.get_nc_root(dn)
1740 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1742 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1743 except ldb.LdbError, (enum, estr):
1744 if enum != ldb.ERR_NO_SUCH_OBJECT:
1747 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1749 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1750 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1754 def get_wellknown_sd(self, dn):
1755 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1757 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1758 return ndr_unpack(security.descriptor,
1759 descriptor_fn(domain_sid,
1760 name_map=self.name_map))
1764 def check_object(self, dn, attrs=['*']):
1765 '''check one object'''
1767 self.report("Checking object %s" % dn)
1769 # If we modify the pass-by-reference attrs variable, then we get a
1770 # replPropertyMetadata for every object that we check.
1772 if "dn" in map(str.lower, attrs):
1773 attrs.append("name")
1774 if "distinguishedname" in map(str.lower, attrs):
1775 attrs.append("name")
1776 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1777 attrs.append("name")
1778 if 'name' in map(str.lower, attrs):
1779 attrs.append(dn.get_rdn_name())
1780 attrs.append("isDeleted")
1781 attrs.append("systemFlags")
1783 attrs.append("replPropertyMetaData")
1785 attrs.append("objectGUID")
1789 sd_flags |= security.SECINFO_OWNER
1790 sd_flags |= security.SECINFO_GROUP
1791 sd_flags |= security.SECINFO_DACL
1792 sd_flags |= security.SECINFO_SACL
1794 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1799 "sd_flags:1:%d" % sd_flags,
1800 "reveal_internals:0",
1803 except ldb.LdbError, (enum, estr):
1804 if enum == ldb.ERR_NO_SUCH_OBJECT:
1805 if self.in_transaction:
1806 self.report("ERROR: Object %s disappeared during check" % dn)
1811 self.report("ERROR: Object %s failed to load during check" % dn)
1815 set_attrs_from_md = set()
1816 set_attrs_seen = set()
1817 got_repl_property_meta_data = False
1818 got_objectclass = False
1820 nc_dn = self.samdb.get_nc_root(obj.dn)
1822 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1823 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1825 # We have no deleted objects DN for schema, and we check for this above for the other
1827 deleted_objects_dn = None
1830 object_rdn_attr = None
1831 object_rdn_val = None
1836 for attrname in obj:
1837 if attrname == 'dn' or attrname == "distinguishedName":
1840 if str(attrname).lower() == 'objectclass':
1841 got_objectclass = True
1843 if str(attrname).lower() == "name":
1844 if len(obj[attrname]) != 1:
1846 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1847 (len(obj[attrname]), attrname, str(obj.dn)))
1849 name_val = obj[attrname][0]
1851 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1852 object_rdn_attr = attrname
1853 if len(obj[attrname]) != 1:
1855 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1856 (len(obj[attrname]), attrname, str(obj.dn)))
1858 object_rdn_val = obj[attrname][0]
1860 if str(attrname).lower() == 'isdeleted':
1861 if obj[attrname][0] != "FALSE":
1864 if str(attrname).lower() == 'systemflags':
1865 systemFlags = int(obj[attrname][0])
1867 if str(attrname).lower() == 'replpropertymetadata':
1868 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1870 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1871 # We don't continue, as we may also have other fixes for this attribute
1872 # based on what other attributes we see.
1875 (set_attrs_from_md, list_attid_from_md, wrong_attids) \
1876 = self.process_metadata(dn, obj[attrname])
1879 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1882 if len(set_attrs_from_md) < len(list_attid_from_md) \
1883 or len(wrong_attids) > 0 \
1884 or sorted(list_attid_from_md) != list_attid_from_md:
1886 self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
1889 # Here we check that the first attid is 0
1891 if list_attid_from_md[0] != 0:
1893 self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
1894 (attrname, str(dn)))
1896 got_repl_property_meta_data = True
1899 if str(attrname).lower() == 'ntsecuritydescriptor':
1900 (sd, sd_broken) = self.process_sd(dn, obj)
1901 if sd_broken is not None:
1902 self.err_wrong_sd(dn, sd, sd_broken)
1906 if sd.owner_sid is None or sd.group_sid is None:
1907 self.err_missing_sd_owner(dn, sd)
1911 if self.reset_well_known_acls:
1913 well_known_sd = self.get_wellknown_sd(dn)
1917 current_sd = ndr_unpack(security.descriptor,
1918 str(obj[attrname][0]))
1920 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1922 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1927 if str(attrname).lower() == 'objectclass':
1928 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
1929 # Do not consider the attribute incorrect if:
1930 # - The sorted (alphabetically) list is the same, inclding case
1931 # - The first and last elements are the same
1933 # This avoids triggering an error due to
1934 # non-determinism in the sort routine in (at least)
1935 # 4.3 and earlier, and the fact that any AUX classes
1936 # in these attributes are also not sorted when
1937 # imported from Windows (they are just in the reverse
1938 # order of last set)
1939 if sorted(normalised) != sorted(obj[attrname]) \
1940 or normalised[0] != obj[attrname][0] \
1941 or normalised[-1] != obj[attrname][-1]:
1942 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1946 if str(attrname).lower() == 'userparameters':
1947 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1949 self.err_short_userParameters(obj, attrname, obj[attrname])
1952 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1953 # This is the correct, normal prefix
1956 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1957 # this is the typical prefix from a windows migration
1959 self.err_base64_userParameters(obj, attrname, obj[attrname])
1962 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':
1963 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1965 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1968 elif len(obj[attrname][0]) % 2 != 0:
1969 # This is a value that isn't even in length
1971 self.err_odd_userParameters(obj, attrname, obj[attrname])
1974 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':
1975 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1977 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1980 if attrname.lower() == 'attributeid' or attrname.lower() == 'governsid':
1981 if obj[attrname][0] in self.attribute_or_class_ids:
1983 self.report('Error: %s %s on %s already exists as an attributeId or governsId'
1984 % (attrname, obj.dn, obj[attrname][0]))
1986 self.attribute_or_class_ids.add(obj[attrname][0])
1988 # check for empty attributes
1989 for val in obj[attrname]:
1991 self.err_empty_attribute(dn, attrname)
1995 # get the syntax oid for the attribute, so we can can have
1996 # special handling for some specific attribute types
1998 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1999 except Exception, msg:
2000 self.err_unknown_attribute(obj, attrname)
2004 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
2006 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
2007 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
2008 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
2010 set_attrs_seen.add(str(attrname).lower())
2012 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
2013 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
2014 # it's some form of DN, do specialised checking on those
2015 error_count += self.check_dn(obj, attrname, syntax_oid)
2019 # check for incorrectly normalised attributes
2020 for val in obj[attrname]:
2021 values.add(str(val))
2023 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
2024 if len(normalised) != 1 or normalised[0] != val:
2025 self.err_normalise_mismatch(dn, attrname, obj[attrname])
2029 if len(obj[attrname]) != len(values):
2030 self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
2034 if str(attrname).lower() == "instancetype":
2035 calculated_instancetype = self.calculate_instancetype(dn)
2036 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
2038 self.err_wrong_instancetype(obj, calculated_instancetype)
2040 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
2042 self.err_missing_objectclass(dn)
2044 if ("*" in attrs or "name" in map(str.lower, attrs)):
2045 if name_val is None:
2047 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
2048 if object_rdn_attr is None:
2050 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
2052 if name_val is not None:
2055 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
2056 parent_dn = deleted_objects_dn
2057 if parent_dn is None:
2058 parent_dn = obj.dn.parent()
2059 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
2060 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
2062 if obj.dn == deleted_objects_dn:
2063 expected_dn = obj.dn
2065 if expected_dn != obj.dn:
2067 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
2068 elif obj.dn.get_rdn_value() != object_rdn_val:
2070 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
2073 if got_repl_property_meta_data:
2074 if obj.dn == deleted_objects_dn:
2075 isDeletedAttId = 131120
2076 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
2078 expectedTimeDo = 2650466015990000000
2079 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
2080 if originating != expectedTimeDo:
2081 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
2082 nmsg = ldb.Message()
2084 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
2086 self.samdb.modify(nmsg, controls=["provision:0"])
2089 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
2091 for att in set_attrs_seen.difference(set_attrs_from_md):
2093 self.report("On object %s" % dn)
2096 self.report("ERROR: Attribute %s not present in replication metadata" % att)
2097 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
2098 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
2100 self.fix_metadata(obj, att)
2102 if self.is_fsmo_role(dn):
2103 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
2104 self.err_no_fsmoRoleOwner(obj)
2108 if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
2109 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
2110 controls=["show_recycled:1", "show_deleted:1"])
2111 except ldb.LdbError, (enum, estr):
2112 if enum == ldb.ERR_NO_SUCH_OBJECT:
2113 self.err_missing_parent(obj)
2118 if dn in self.deleted_objects_containers and '*' in attrs:
2119 if self.is_deleted_deleted_objects(obj):
2120 self.err_deleted_deleted_objects(obj)
2123 for (dns_part, msg) in self.dns_partitions:
2124 if dn == dns_part and 'repsFrom' in obj:
2125 location = "msDS-NC-Replica-Locations"
2126 if self.samdb.am_rodc():
2127 location = "msDS-NC-RO-Replica-Locations"
2129 if location not in msg:
2130 # There are no replica locations!
2131 self.err_replica_locations(obj, msg.dn, location)
2136 for loc in msg[location]:
2137 if loc == self.samdb.get_dsServiceName():
2140 # This DC is not in the replica locations
2141 self.err_replica_locations(obj, msg.dn, location)
2144 if dn == self.server_ref_dn:
2145 # Check we have a valid RID Set
2146 if "*" in attrs or "rIDSetReferences" in attrs:
2147 if "rIDSetReferences" not in obj:
2148 # NO RID SET reference
2149 # We are RID master, allocate it.
2152 if self.is_rid_master:
2153 # Allocate a RID Set
2154 if self.confirm_all('Allocate the missing RID set for RID master?',
2155 'fix_missing_rid_set_master'):
2157 # We don't have auto-transaction logic on
2158 # extended operations, so we have to do it
2161 self.samdb.transaction_start()
2164 self.samdb.create_own_rid_set()
2167 self.samdb.transaction_cancel()
2170 self.samdb.transaction_commit()
2173 elif not self.samdb.am_rodc():
2174 self.report("No RID Set found for this server: %s, and we are not the RID Master (so can not self-allocate)" % dn)
2177 # Check some details of our own RID Set
2178 if dn == self.rid_set_dn:
2179 res = self.samdb.search(base=self.rid_set_dn, scope=ldb.SCOPE_BASE,
2180 attrs=["rIDAllocationPool",
2181 "rIDPreviousAllocationPool",
2184 if "rIDAllocationPool" not in res[0]:
2185 self.report("No rIDAllocationPool found in %s" % dn)
2188 next_pool = int(res[0]["rIDAllocationPool"][0])
2190 high = (0xFFFFFFFF00000000 & next_pool) >> 32
2191 low = 0x00000000FFFFFFFF & next_pool
2194 self.report("Invalid RID set %d-%s, %d > %d!" % (low, high, low, high))
2197 if "rIDNextRID" in res[0]:
2198 next_free_rid = int(res[0]["rIDNextRID"][0])
2202 if next_free_rid == 0:
2207 # Check the remainder of this pool for conflicts. If
2208 # ridalloc_allocate_rid() moves to a new pool, this
2209 # will be above high, so we will stop.
2210 while next_free_rid <= high:
2211 sid = "%s-%d" % (self.samdb.get_domain_sid(), next_free_rid)
2213 res = self.samdb.search(base="<SID=%s>" % sid, scope=ldb.SCOPE_BASE,
2215 except ldb.LdbError, (enum, estr):
2216 if enum != ldb.ERR_NO_SUCH_OBJECT:
2220 self.report("SID %s for %s conflicts with our current RID set in %s" % (sid, res[0].dn, dn))
2223 if self.confirm_all('Fix conflict between SID %s and RID pool in %s by allocating a new RID?'
2225 'fix_sid_rid_set_conflict'):
2226 self.samdb.transaction_start()
2228 # This will burn RIDs, which will move
2229 # past the conflict. We then check again
2230 # to see if the new RID conflicts, until
2231 # the end of the current pool. We don't
2232 # look at the next pool to avoid burning
2233 # all RIDs in one go in some strange
2237 allocated_rid = self.samdb.allocate_rid()
2238 if allocated_rid >= next_free_rid:
2239 next_free_rid = allocated_rid + 1
2242 self.samdb.transaction_cancel()
2245 self.samdb.transaction_commit()
2254 ################################################################
2255 # check special @ROOTDSE attributes
2256 def check_rootdse(self):
2257 '''check the @ROOTDSE special object'''
2258 dn = ldb.Dn(self.samdb, '@ROOTDSE')
2260 self.report("Checking object %s" % dn)
2261 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
2263 self.report("Object %s disappeared during check" % dn)
2268 # check that the dsServiceName is in GUID form
2269 if not 'dsServiceName' in obj:
2270 self.report('ERROR: dsServiceName missing in @ROOTDSE')
2271 return error_count+1
2273 if not obj['dsServiceName'][0].startswith('<GUID='):
2274 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
2276 if not self.confirm('Change dsServiceName to GUID form?'):
2278 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
2279 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
2280 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
2283 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
2284 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
2285 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
2286 self.report("Changed dsServiceName to GUID form")
2290 ###############################################
2291 # re-index the database
2292 def reindex_database(self):
2293 '''re-index the whole database'''
2295 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
2296 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
2297 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
2298 return self.do_modify(m, [], 're-indexed database', validate=False)
2300 ###############################################
2302 def reset_modules(self):
2303 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
2305 m.dn = ldb.Dn(self.samdb, "@MODULES")
2306 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
2307 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)