1 # Samba4 AD database checker
3 # Copyright (C) Andrew Tridgell 2011
4 # Copyright (C) Matthieu Patou <mat@matws.net> 2011
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 from base64 import b64decode
24 from samba import dsdb
25 from samba import common
26 from samba.dcerpc import misc
27 from samba.dcerpc import drsuapi
28 from samba.ndr import ndr_unpack, ndr_pack
29 from samba.dcerpc import drsblobs
30 from samba.common import dsdb_Dn
31 from samba.dcerpc import security
32 from samba.descriptor import get_wellknown_sds, get_diff_sds
33 from samba.auth import system_session, admin_session
34 from samba.netcmd import CommandError
35 from samba.netcmd.fsmo import get_fsmo_roleowner
38 class dbcheck(object):
39 """check a SAM database for errors"""
41 def __init__(self, samdb, samdb_schema=None, verbose=False, fix=False,
42 yes=False, quiet=False, in_transaction=False,
43 reset_well_known_acls=False):
45 self.dict_oid_name = None
46 self.samdb_schema = (samdb_schema or samdb)
47 self.verbose = verbose
51 self.remove_all_unknown_attributes = False
52 self.remove_all_empty_attributes = False
53 self.fix_all_normalisation = False
54 self.fix_all_duplicates = False
55 self.fix_all_DN_GUIDs = False
56 self.fix_all_binary_dn = False
57 self.remove_implausible_deleted_DN_links = False
58 self.remove_plausible_deleted_DN_links = False
59 self.fix_all_string_dn_component_mismatch = False
60 self.fix_all_GUID_dn_component_mismatch = False
61 self.fix_all_SID_dn_component_mismatch = False
62 self.fix_all_old_dn_string_component_mismatch = False
63 self.fix_all_metadata = False
64 self.fix_time_metadata = False
65 self.fix_undead_linked_attributes = False
66 self.fix_all_missing_backlinks = False
67 self.fix_all_orphaned_backlinks = False
68 self.fix_rmd_flags = False
69 self.fix_ntsecuritydescriptor = False
70 self.fix_ntsecuritydescriptor_owner_group = False
71 self.seize_fsmo_role = False
72 self.move_to_lost_and_found = False
73 self.fix_instancetype = False
74 self.fix_replmetadata_zero_invocationid = False
75 self.fix_replmetadata_duplicate_attid = False
76 self.fix_replmetadata_wrong_attid = False
77 self.fix_replmetadata_unsorted_attid = False
78 self.fix_deleted_deleted_objects = False
79 self.fix_incorrect_deleted_objects = False
81 self.fix_base64_userparameters = False
82 self.fix_utf8_userparameters = False
83 self.fix_doubled_userparameters = False
84 self.fix_sid_rid_set_conflict = False
85 self.reset_well_known_acls = reset_well_known_acls
86 self.reset_all_well_known_acls = False
87 self.in_transaction = in_transaction
88 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
89 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
90 self.schema_dn = samdb.get_schema_basedn()
91 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
92 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
93 self.class_schemaIDGUID = {}
94 self.wellknown_sds = get_wellknown_sds(self.samdb)
95 self.fix_all_missing_objectclass = False
96 self.fix_missing_deleted_objects = False
97 self.fix_replica_locations = False
98 self.fix_missing_rid_set_master = False
101 self.link_id_cache = {}
104 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
106 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
107 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
108 except ldb.LdbError, (enum, estr):
109 if enum != ldb.ERR_NO_SUCH_OBJECT:
113 self.system_session_info = system_session()
114 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
116 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
117 if "msDS-hasMasterNCs" in res[0]:
118 self.write_ncs = res[0]["msDS-hasMasterNCs"]
120 # If the Forest Level is less than 2003 then there is no
121 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
122 # no need to merge as all the NCs that are in hasMasterNCs must
123 # also be in msDS-hasMasterNCs (but not the opposite)
124 if "hasMasterNCs" in res[0]:
125 self.write_ncs = res[0]["hasMasterNCs"]
127 self.write_ncs = None
129 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
130 self.deleted_objects_containers = []
131 self.ncs_lacking_deleted_containers = []
132 self.dns_partitions = []
134 self.ncs = res[0]["namingContexts"]
142 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
143 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
144 self.deleted_objects_containers.append(dn)
146 self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc))
148 domaindns_zone = 'DC=DomainDnsZones,%s' % self.samdb.get_default_basedn()
149 forestdns_zone = 'DC=ForestDnsZones,%s' % self.samdb.get_root_basedn()
150 domain = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
151 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
152 base=self.samdb.get_partitions_dn(),
153 expression="(&(objectClass=crossRef)(ncName=%s))" % domaindns_zone)
155 self.dns_partitions.append((ldb.Dn(self.samdb, forestdns_zone), domain[0]))
157 forest = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
158 attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
159 base=self.samdb.get_partitions_dn(),
160 expression="(&(objectClass=crossRef)(ncName=%s))" % forestdns_zone)
162 self.dns_partitions.append((ldb.Dn(self.samdb, domaindns_zone), forest[0]))
164 fsmo_dn = ldb.Dn(self.samdb, "CN=RID Manager$,CN=System," + self.samdb.domain_dn())
165 rid_master = get_fsmo_roleowner(self.samdb, fsmo_dn, "rid")
166 if ldb.Dn(self.samdb, self.samdb.get_dsServiceName()) == rid_master:
167 self.is_rid_master = True
169 self.is_rid_master = False
171 # To get your rid set
173 res = self.samdb.search(base=ldb.Dn(self.samdb, self.samdb.get_serverName()),
174 scope=ldb.SCOPE_BASE, attrs=["serverReference"])
175 # 2. Get server reference
176 self.server_ref_dn = ldb.Dn(self.samdb, res[0]['serverReference'][0])
179 res = self.samdb.search(base=self.server_ref_dn,
180 scope=ldb.SCOPE_BASE, attrs=['rIDSetReferences'])
181 if "rIDSetReferences" in res[0]:
182 self.rid_set_dn = ldb.Dn(self.samdb, res[0]['rIDSetReferences'][0])
184 self.rid_set_dn = None
186 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
187 '''perform a database check, returning the number of errors found'''
188 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
189 self.report('Checking %u objects' % len(res))
192 error_count += self.check_deleted_objects_containers()
194 self.attribute_or_class_ids = set()
197 self.dn_set.add(str(object.dn))
198 error_count += self.check_object(object.dn, attrs=attrs)
201 error_count += self.check_rootdse()
203 if error_count != 0 and not self.fix:
204 self.report("Please use --fix to fix these errors")
206 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
209 def check_deleted_objects_containers(self):
210 """This function only fixes conflicts on the Deleted Objects
211 containers, not the attributes"""
213 for nc in self.ncs_lacking_deleted_containers:
214 if nc == self.schema_dn:
217 self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
218 if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
221 dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
226 # If something already exists here, add a conflict
227 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
228 controls=["show_deleted:1", "extended_dn:1:1",
229 "show_recycled:1", "reveal_internals:0"])
231 guid = res[0].dn.get_extended_component("GUID")
232 conflict_dn = ldb.Dn(self.samdb,
233 "CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
234 conflict_dn.add_base(nc)
236 except ldb.LdbError, (enum, estr):
237 if enum == ldb.ERR_NO_SUCH_OBJECT:
240 self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
243 if conflict_dn is not None:
245 self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
246 except ldb.LdbError, (enum, estr):
247 self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
250 # Refresh wellKnownObjects links
251 res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
252 attrs=['wellKnownObjects'],
253 controls=["show_deleted:1", "extended_dn:0",
254 "show_recycled:1", "reveal_internals:0"])
256 self.report("wellKnownObjects was not found for NC %s" % nc)
259 # Prevent duplicate deleted objects containers just in case
260 wko = res[0]["wellKnownObjects"]
262 proposed_objectguid = None
264 dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
265 if self.is_deleted_objects_dn(dsdb_dn):
266 self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
267 # We really want to put this back in the same spot
268 # as the original one, so that on replication we
269 # merge, rather than conflict.
270 proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
273 if proposed_objectguid is not None:
274 guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
276 wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
277 listwko.append('%s:%s' % (wko_prefix, dn))
280 # Insert a brand new Deleted Objects container
281 self.samdb.add_ldif("""dn: %s
283 objectClass: container
284 description: Container for deleted objects
286 isCriticalSystemObject: TRUE
287 showInAdvancedViewOnly: TRUE
288 systemFlags: -1946157056%s""" % (dn, guid_suffix),
289 controls=["relax:0", "provision:0"])
291 delta = ldb.Message()
292 delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
293 delta["wellKnownObjects"] = ldb.MessageElement(listwko,
294 ldb.FLAG_MOD_REPLACE,
297 # Insert the link to the brand new container
298 if self.do_modify(delta, ["relax:0"],
299 "NC %s lacks Deleted Objects WKGUID" % nc,
301 self.report("Added %s well known guid link" % dn)
303 self.deleted_objects_containers.append(dn)
307 def report(self, msg):
308 '''print a message unless quiet is set'''
312 def confirm(self, msg, allow_all=False, forced=False):
313 '''confirm a change'''
320 return common.confirm(msg, forced=forced, allow_all=allow_all)
322 ################################################################
323 # a local confirm function with support for 'all'
324 def confirm_all(self, msg, all_attr):
325 '''confirm a change with support for "all" '''
328 if getattr(self, all_attr) == 'NONE':
330 if getattr(self, all_attr) == 'ALL':
336 c = common.confirm(msg, forced=forced, allow_all=True)
338 setattr(self, all_attr, 'ALL')
341 setattr(self, all_attr, 'NONE')
345 def do_delete(self, dn, controls, msg):
346 '''delete dn with optional verbose output'''
348 self.report("delete DN %s" % dn)
350 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
351 self.samdb.delete(dn, controls=controls)
352 except Exception, err:
353 if self.in_transaction:
354 raise CommandError("%s : %s" % (msg, err))
355 self.report("%s : %s" % (msg, err))
359 def do_modify(self, m, controls, msg, validate=True):
360 '''perform a modify with optional verbose output'''
362 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
364 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
365 self.samdb.modify(m, controls=controls, validate=validate)
366 except Exception, err:
367 if self.in_transaction:
368 raise CommandError("%s : %s" % (msg, err))
369 self.report("%s : %s" % (msg, err))
373 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
374 '''perform a modify with optional verbose output'''
376 self.report("""dn: %s
380 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
382 to_dn = to_rdn + to_base
383 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
384 self.samdb.rename(from_dn, to_dn, controls=controls)
385 except Exception, err:
386 if self.in_transaction:
387 raise CommandError("%s : %s" % (msg, err))
388 self.report("%s : %s" % (msg, err))
392 def get_attr_linkID_and_reverse_name(self, attrname):
393 if attrname in self.link_id_cache:
394 return self.link_id_cache[attrname]
395 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
397 revname = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
400 self.link_id_cache[attrname] = (linkID, revname)
401 return linkID, revname
403 def err_empty_attribute(self, dn, attrname):
404 '''fix empty attributes'''
405 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
406 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
407 self.report("Not fixing empty attribute %s" % attrname)
412 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
413 if self.do_modify(m, ["relax:0", "show_recycled:1"],
414 "Failed to remove empty attribute %s" % attrname, validate=False):
415 self.report("Removed empty attribute %s" % attrname)
417 def err_normalise_mismatch(self, dn, attrname, values):
418 '''fix attribute normalisation errors'''
419 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
422 normalised = self.samdb.dsdb_normalise_attributes(
423 self.samdb_schema, attrname, [val])
424 if len(normalised) != 1:
425 self.report("Unable to normalise value '%s'" % val)
426 mod_list.append((val, ''))
427 elif (normalised[0] != val):
428 self.report("value '%s' should be '%s'" % (val, normalised[0]))
429 mod_list.append((val, normalised[0]))
430 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
431 self.report("Not fixing attribute %s" % attrname)
436 for i in range(0, len(mod_list)):
437 (val, nval) = mod_list[i]
438 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
440 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
443 if self.do_modify(m, ["relax:0", "show_recycled:1"],
444 "Failed to normalise attribute %s" % attrname,
446 self.report("Normalised attribute %s" % attrname)
448 def err_normalise_mismatch_replace(self, dn, attrname, values):
449 '''fix attribute normalisation errors'''
450 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
451 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
452 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
453 if list(normalised) == values:
455 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
456 self.report("Not fixing attribute '%s'" % attrname)
461 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
463 if self.do_modify(m, ["relax:0", "show_recycled:1"],
464 "Failed to normalise attribute %s" % attrname,
466 self.report("Normalised attribute %s" % attrname)
468 def err_duplicate_values(self, dn, attrname, dup_values, values):
469 '''fix attribute normalisation errors'''
470 self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
471 self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
472 if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
473 self.report("Not fixing attribute '%s'" % attrname)
478 m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
480 if self.do_modify(m, ["relax:0", "show_recycled:1"],
481 "Failed to remove duplicate value on attribute %s" % attrname,
483 self.report("Removed duplicate value on attribute %s" % attrname)
485 def is_deleted_objects_dn(self, dsdb_dn):
486 '''see if a dsdb_Dn is the special Deleted Objects DN'''
487 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
489 def err_missing_objectclass(self, dn):
490 """handle object without objectclass"""
491 self.report("ERROR: missing objectclass in object %s. If you have another working DC, please run 'samba-tool drs replicate --full-sync --local <destinationDC> <sourceDC> %s'" % (dn, self.samdb.get_nc_root(dn)))
492 if not self.confirm_all("If you cannot re-sync from another DC, do you wish to delete object '%s'?" % dn, 'fix_all_missing_objectclass'):
493 self.report("Not deleting object with missing objectclass '%s'" % dn)
495 if self.do_delete(dn, ["relax:0"],
496 "Failed to remove DN %s" % dn):
497 self.report("Removed DN %s" % dn)
499 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn, remove_plausible=False):
500 """handle a DN pointing to a deleted object"""
501 if not remove_plausible:
502 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
503 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
504 if not self.confirm_all('Remove DN link?', 'remove_implausible_deleted_DN_links'):
505 self.report("Not removing")
508 self.report("WARNING: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
509 self.report("Target GUID points at deleted DN %r" % str(correct_dn))
510 if not self.confirm_all('Remove stale DN link?', 'remove_plausible_deleted_DN_links'):
511 self.report("Not removing")
516 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
517 if self.do_modify(m, ["show_recycled:1",
518 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
519 "Failed to remove deleted DN attribute %s" % attrname):
520 self.report("Removed deleted DN on attribute %s" % attrname)
522 def err_missing_target_dn_or_GUID(self, dn, attrname, val, dsdb_dn):
523 """handle a missing target DN (if specified, GUID form can't be found,
524 and otherwise DN string form can't be found)"""
525 # check if its a backlink
526 linkID, _ = self.get_attr_linkID_and_reverse_name(attrname)
527 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
529 linkID, reverse_link_name \
530 = self.get_attr_linkID_and_reverse_name(attrname)
531 if reverse_link_name is not None:
532 self.report("WARNING: no target object found for GUID "
533 "component for one-way forward link "
535 "%s - %s" % (attrname, dn, val))
536 self.report("Not removing dangling forward link")
539 nc_root = self.samdb.get_nc_root(dn)
540 target_nc_root = self.samdb.get_nc_root(dsdb_dn.dn)
541 if nc_root != target_nc_root:
542 # We don't bump the error count as Samba produces these
543 # in normal operation
544 self.report("WARNING: no target object found for GUID "
545 "component for cross-partition link "
547 "%s - %s" % (attrname, dn, val))
548 self.report("Not removing dangling one-way "
549 "cross-partition link "
550 "(we might be mid-replication)")
553 # Due to our link handling one-way links pointing to
554 # missing objects are plausible.
556 # We don't bump the error count as Samba produces these
557 # in normal operation
558 self.report("WARNING: no target object found for GUID "
559 "component for DN value %s in object "
560 "%s - %s" % (attrname, dn, val))
561 self.err_deleted_dn(dn, attrname, val,
562 dsdb_dn, dsdb_dn, True)
565 # We bump the error count here, as we should have deleted this
566 self.report("ERROR: no target object found for GUID "
567 "component for link %s in object "
568 "%s - %s" % (attrname, dn, val))
569 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn, False)
572 def err_missing_dn_GUID_component(self, dn, attrname, val, dsdb_dn, errstr):
573 """handle a missing GUID extended DN component"""
574 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
575 controls=["extended_dn:1:1", "show_recycled:1"]
577 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
578 attrs=[], controls=controls)
579 except ldb.LdbError, (enum, estr):
580 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
581 if enum != ldb.ERR_NO_SUCH_OBJECT:
583 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
586 self.report("unable to find object for DN %s" % dsdb_dn.dn)
587 self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
589 dsdb_dn.dn = res[0].dn
591 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
592 self.report("Not fixing %s" % errstr)
596 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
597 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
599 if self.do_modify(m, ["show_recycled:1"],
600 "Failed to fix %s on attribute %s" % (errstr, attrname)):
601 self.report("Fixed %s on attribute %s" % (errstr, attrname))
603 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
604 """handle an incorrect binary DN component"""
605 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
606 controls=["extended_dn:1:1", "show_recycled:1"]
608 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
609 self.report("Not fixing %s" % errstr)
613 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
614 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
616 if self.do_modify(m, ["show_recycled:1"],
617 "Failed to fix %s on attribute %s" % (errstr, attrname)):
618 self.report("Fixed %s on attribute %s" % (errstr, attrname))
620 def err_dn_string_component_old(self, dn, attrname, val, dsdb_dn, correct_dn):
621 """handle a DN string being incorrect"""
622 self.report("NOTE: old (due to rename or delete) DN string component for %s in object %s - %s" % (attrname, dn, val))
623 dsdb_dn.dn = correct_dn
625 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
626 'fix_all_old_dn_string_component_mismatch'):
627 self.report("Not fixing old string component")
631 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
632 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
633 if self.do_modify(m, ["show_recycled:1"],
634 "Failed to fix old DN string on attribute %s" % (attrname)):
635 self.report("Fixed old DN string on attribute %s" % (attrname))
637 def err_dn_component_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, mismatch_type):
638 """handle a DN string being incorrect"""
639 self.report("ERROR: incorrect DN %s component for %s in object %s - %s" % (mismatch_type, attrname, dn, val))
640 dsdb_dn.dn = correct_dn
642 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
643 'fix_all_%s_dn_component_mismatch' % mismatch_type):
644 self.report("Not fixing %s component mismatch" % mismatch_type)
648 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
649 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
650 if self.do_modify(m, ["show_recycled:1"],
651 "Failed to fix incorrect DN %s on attribute %s" % (mismatch_type, attrname)):
652 self.report("Fixed incorrect DN %s on attribute %s" % (mismatch_type, attrname))
654 def err_unknown_attribute(self, obj, attrname):
655 '''handle an unknown attribute error'''
656 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
657 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
658 self.report("Not removing %s" % attrname)
662 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
663 if self.do_modify(m, ["relax:0", "show_recycled:1"],
664 "Failed to remove unknown attribute %s" % attrname):
665 self.report("Removed unknown attribute %s" % (attrname))
667 def err_undead_linked_attribute(self, obj, attrname, val):
668 '''handle a link that should not be there on a deleted object'''
669 self.report("ERROR: linked attribute '%s' to '%s' is present on "
670 "deleted object %s" % (attrname, val, obj.dn))
671 if not self.confirm_all('Remove linked attribute %s' % attrname, 'fix_undead_linked_attributes'):
672 self.report("Not removing linked attribute %s" % attrname)
676 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
678 if self.do_modify(m, ["show_recycled:1", "show_deleted:1", "reveal_internals:0",
679 "local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
680 "Failed to delete forward link %s" % attrname):
681 self.report("Fixed undead forward link %s" % (attrname))
683 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
684 '''handle a missing backlink value'''
685 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
686 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
687 self.report("Not fixing missing backlink %s" % backlink_name)
691 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, backlink_name)
692 if self.do_modify(m, ["show_recycled:1", "relax:0"],
693 "Failed to fix missing backlink %s" % backlink_name):
694 self.report("Fixed missing backlink %s" % (backlink_name))
696 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
697 '''handle a incorrect RMD_FLAGS value'''
698 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
699 self.report("ERROR: incorrect RMD_FLAGS value %u for attribute '%s' in %s for link %s" % (rmd_flags, attrname, obj.dn, revealed_dn.dn.extended_str()))
700 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
701 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
705 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
706 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
707 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
708 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
710 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
711 '''handle a orphaned backlink value'''
712 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
713 if not self.confirm_all('Remove orphaned backlink %s' % attrname, 'fix_all_orphaned_backlinks'):
714 self.report("Not removing orphaned backlink %s" % attrname)
718 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
719 if self.do_modify(m, ["show_recycled:1", "relax:0"],
720 "Failed to fix orphaned backlink %s" % attrname):
721 self.report("Fixed orphaned backlink %s" % (attrname))
723 def err_no_fsmoRoleOwner(self, obj):
724 '''handle a missing fSMORoleOwner'''
725 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
726 res = self.samdb.search("",
727 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
729 serviceName = res[0]["dsServiceName"][0]
730 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
731 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
735 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
736 if self.do_modify(m, [],
737 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
738 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
740 def err_missing_parent(self, obj):
741 '''handle a missing parent'''
742 self.report("ERROR: parent object not found for %s" % (obj.dn))
743 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
744 self.report('Not moving object %s into LostAndFound' % (obj.dn))
747 keep_transaction = False
748 self.samdb.transaction_start()
750 nc_root = self.samdb.get_nc_root(obj.dn);
751 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
752 new_dn = ldb.Dn(self.samdb, str(obj.dn))
753 new_dn.remove_base_components(len(new_dn) - 1)
754 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
755 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
756 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
760 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
762 if self.do_modify(m, [],
763 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
764 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
765 keep_transaction = True
767 self.samdb.transaction_cancel()
771 self.samdb.transaction_commit()
773 self.samdb.transaction_cancel()
775 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
776 '''handle a wrong dn'''
778 new_rdn = ldb.Dn(self.samdb, str(new_dn))
779 new_rdn.remove_base_components(len(new_rdn) - 1)
780 new_parent = new_dn.parent()
783 if rdn_val != name_val:
784 attributes += "%s=%r " % (rdn_attr, rdn_val)
785 attributes += "name=%r" % (name_val)
787 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
788 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
789 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
792 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
793 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
794 self.report("Renamed %s into %s" % (obj.dn, new_dn))
796 def err_wrong_instancetype(self, obj, calculated_instancetype):
797 '''handle a wrong instanceType'''
798 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
799 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
800 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
805 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
806 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
807 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
808 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
810 def err_short_userParameters(self, obj, attrname, value):
811 # This is a truncated userParameters due to a pre 4.1 replication bug
812 self.report("ERROR: incorrect userParameters value on object %s. If you have another working DC that does not give this warning, please run 'samba-tool drs replicate --full-sync --local <destinationDC> <sourceDC> %s'" % (obj.dn, self.samdb.get_nc_root(obj.dn)))
814 def err_base64_userParameters(self, obj, attrname, value):
815 '''handle a wrong userParameters'''
816 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
817 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
818 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
823 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
824 if self.do_modify(m, [],
825 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
826 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
828 def err_utf8_userParameters(self, obj, attrname, value):
829 '''handle a wrong userParameters'''
830 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
831 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
832 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
837 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
838 ldb.FLAG_MOD_REPLACE, 'userParameters')
839 if self.do_modify(m, [],
840 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
841 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
843 def err_doubled_userParameters(self, obj, attrname, value):
844 '''handle a wrong userParameters'''
845 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
846 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
847 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
852 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
853 ldb.FLAG_MOD_REPLACE, 'userParameters')
854 if self.do_modify(m, [],
855 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
856 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
858 def err_odd_userParameters(self, obj, attrname):
859 # This is a truncated userParameters due to a pre 4.1 replication bug
860 self.report("ERROR: incorrect userParameters value on object %s (odd length). If you have another working DC that does not give this warning, please run 'samba-tool drs replicate --full-sync --local <destinationDC> <sourceDC> %s'" % (obj.dn, self.samdb.get_nc_root(obj.dn)))
862 def find_revealed_link(self, dn, attrname, guid):
863 '''return a revealed link in an object'''
864 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
865 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
866 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
867 for val in res[0][attrname]:
868 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
869 guid2 = dsdb_dn.dn.get_extended_component("GUID")
874 def check_dn(self, obj, attrname, syntax_oid):
875 '''check a DN attribute for correctness'''
877 obj_guid = obj['objectGUID'][0]
879 for val in obj[attrname]:
880 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
882 # all DNs should have a GUID component
883 guid = dsdb_dn.dn.get_extended_component("GUID")
886 self.err_missing_dn_GUID_component(obj.dn, attrname, val, dsdb_dn,
890 guidstr = str(misc.GUID(guid))
891 attrs = ['isDeleted', 'replPropertyMetaData']
893 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
894 fixing_msDS_HasInstantiatedNCs = True
895 attrs.append("instanceType")
897 fixing_msDS_HasInstantiatedNCs = False
899 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
900 if reverse_link_name is not None:
901 attrs.append(reverse_link_name)
903 # check its the right GUID
905 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
906 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1",
909 except ldb.LdbError, (enum, estr):
910 if enum != ldb.ERR_NO_SUCH_OBJECT:
913 # We don't always want to
914 error_count += self.err_missing_target_dn_or_GUID(obj.dn,
920 if fixing_msDS_HasInstantiatedNCs:
921 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
922 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
924 if str(dsdb_dn) != val:
926 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
929 # now we have two cases - the source object might or might not be deleted
930 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
931 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
934 if is_deleted and not obj.dn in self.deleted_objects_containers and linkID:
935 # A fully deleted object should not have any linked
936 # attributes. (MS-ADTS 3.1.1.5.5.1.1 Tombstone
937 # Requirements and 3.1.1.5.5.1.3 Recycled-Object
939 self.err_undead_linked_attribute(obj, attrname, val)
942 elif target_is_deleted and not self.is_deleted_objects_dn(dsdb_dn) and linkID:
943 # the target DN is not allowed to be deleted, unless the target DN is the
944 # special Deleted Objects container
946 local_usn = dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN")
948 if 'replPropertyMetaData' in res[0]:
949 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
950 str(res[0]['replPropertyMetadata']))
952 for o in repl.ctr.array:
953 if o.attid == drsuapi.DRSUAPI_ATTID_isDeleted:
954 deleted_usn = o.local_usn
955 if deleted_usn >= int(local_usn):
956 # If the object was deleted after the link
957 # was last modified then, clean it up here
962 self.err_deleted_dn(obj.dn, attrname,
963 val, dsdb_dn, res[0].dn, True)
966 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn, False)
969 # We should not check for incorrect
970 # components on deleted links, as these are allowed to
971 # go stale (we just need the GUID, not the name)
972 rmd_blob = dsdb_dn.dn.get_extended_component("RMD_FLAGS")
973 if rmd_blob is not None:
974 rmd_flags = int(rmd_blob)
978 # assert the DN matches in string form, where a reverse
979 # link exists, otherwise (below) offer to fix it as a non-error.
980 # The string form is essentially only kept for forensics,
981 # as we always re-resolve by GUID in normal operations.
982 if reverse_link_name is not None:
983 if str(res[0].dn) != str(dsdb_dn.dn):
985 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
989 if res[0].dn.get_extended_component("GUID") != dsdb_dn.dn.get_extended_component("GUID"):
991 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
995 if res[0].dn.get_extended_component("SID") != dsdb_dn.dn.get_extended_component("SID"):
997 self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
1001 # Now we have checked the GUID and SID, offer to fix old
1002 # DN strings as a non-error (for forward links with no
1003 # backlink). Samba does not maintain this string
1004 # otherwise, so we don't increment error_count.
1005 if reverse_link_name is None:
1006 if str(res[0].dn) != str(dsdb_dn.dn):
1007 self.err_dn_string_component_old(obj.dn, attrname, val, dsdb_dn,
1012 # check the reverse_link is correct if there should be one
1014 if reverse_link_name in res[0]:
1015 for v in res[0][reverse_link_name]:
1016 v_guid = dsdb_Dn(self.samdb, v).dn.get_extended_component("GUID")
1017 if v_guid == obj_guid:
1019 if match_count != 1:
1020 reverse_syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(reverse_link_name)
1021 if syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN or reverse_syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN:
1023 # Forward binary multi-valued linked attribute
1025 for w in obj[attrname]:
1026 w_guid = dsdb_Dn(self.samdb, w).dn.get_extended_component("GUID")
1030 if match_count == forward_count:
1035 # Add or remove the missing number of backlinks
1036 diff_count = forward_count - match_count
1038 # Loop until the difference between the forward and
1039 # the backward links is resolved.
1040 while diff_count != 0:
1042 # self.err_missing_backlink(obj, attrname,
1043 # obj.dn.extended_str(),
1044 # reverse_link_name,
1047 # TODO no method to fix these right now
1048 self.report("ERROR: Can't fix missing "
1049 "multi-valued backlinks on %s" % str(dsdb_dn.dn))
1052 self.err_orphaned_backlink(res[0], reverse_link_name,
1053 obj.dn.extended_str(), attrname,
1058 # If there's a backward link on binary multi-valued linked attribute,
1059 # let the check on the forward link remedy the value.
1060 # UNLESS, there is no forward link detected.
1061 if match_count == 0:
1062 self.err_orphaned_backlink(obj, attrname,
1063 val, reverse_link_name,
1070 # Backlink exists, but forward link does not
1071 # Delete the hanging backlink
1072 self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
1074 # Forward link exists, but backlink does not
1075 # Add the missing backlink (if the target object is not Deleted Objects?)
1076 if not target_is_deleted:
1077 self.err_missing_backlink(obj, attrname, obj.dn.extended_str(), reverse_link_name, dsdb_dn.dn)
1086 def get_originating_time(self, val, attid):
1087 '''Read metadata properties and return the originating time for
1088 a given attributeId.
1090 :return: the originating time or 0 if not found
1093 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1096 for o in repl.ctr.array:
1097 if o.attid == attid:
1098 return o.originating_change_time
1102 def process_metadata(self, dn, val):
1103 '''Read metadata properties and list attributes in it.
1104 raises KeyError if the attid is unknown.'''
1107 wrong_attids = set()
1109 in_schema_nc = dn.is_child_of(self.schema_dn)
1111 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
1114 for o in repl.ctr.array:
1115 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1116 set_att.add(att.lower())
1117 list_attid.append(o.attid)
1118 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
1119 is_schema_nc=in_schema_nc)
1120 if correct_attid != o.attid:
1121 wrong_attids.add(o.attid)
1123 return (set_att, list_attid, wrong_attids)
1126 def fix_metadata(self, obj, attr):
1127 '''re-write replPropertyMetaData elements for a single attribute for a
1128 object. This is used to fix missing replPropertyMetaData elements'''
1129 guid_str = str(ndr_unpack(misc.GUID, obj['objectGUID'][0]))
1130 dn = ldb.Dn(self.samdb, "<GUID=%s>" % guid_str)
1131 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
1132 controls = ["search_options:1:2",
1135 nmsg = ldb.Message()
1137 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
1138 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
1139 "Failed to fix metadata for attribute %s" % attr):
1140 self.report("Fixed metadata for attribute %s" % attr)
1142 def ace_get_effective_inherited_type(self, ace):
1143 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
1147 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
1149 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
1151 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
1153 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
1159 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
1162 return str(ace.object.inherited_type)
1164 def lookup_class_schemaIDGUID(self, cls):
1165 if cls in self.class_schemaIDGUID:
1166 return self.class_schemaIDGUID[cls]
1168 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
1169 res = self.samdb.search(base=self.schema_dn,
1171 attrs=["schemaIDGUID"])
1172 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
1174 self.class_schemaIDGUID[cls] = t
1177 def process_sd(self, dn, obj):
1178 sd_attr = "nTSecurityDescriptor"
1179 sd_val = obj[sd_attr]
1181 sd = ndr_unpack(security.descriptor, str(sd_val))
1183 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
1185 # we don't fix deleted objects
1188 sd_clean = security.descriptor()
1189 sd_clean.owner_sid = sd.owner_sid
1190 sd_clean.group_sid = sd.group_sid
1191 sd_clean.type = sd.type
1192 sd_clean.revision = sd.revision
1195 last_inherited_type = None
1198 if sd.sacl is not None:
1200 for i in range(0, len(aces)):
1203 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1204 sd_clean.sacl_add(ace)
1207 t = self.ace_get_effective_inherited_type(ace)
1211 if last_inherited_type is not None:
1212 if t != last_inherited_type:
1213 # if it inherited from more than
1214 # one type it's very likely to be broken
1216 # If not the recalculation will calculate
1221 last_inherited_type = t
1224 if sd.dacl is not None:
1226 for i in range(0, len(aces)):
1229 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
1230 sd_clean.dacl_add(ace)
1233 t = self.ace_get_effective_inherited_type(ace)
1237 if last_inherited_type is not None:
1238 if t != last_inherited_type:
1239 # if it inherited from more than
1240 # one type it's very likely to be broken
1242 # If not the recalculation will calculate
1247 last_inherited_type = t
1250 return (sd_clean, sd)
1252 if last_inherited_type is None:
1258 cls = obj["objectClass"][-1]
1263 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1264 attrs=["isDeleted", "objectClass"],
1265 controls=["show_recycled:1"])
1267 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
1269 # we don't fix deleted objects
1271 cls = o["objectClass"][-1]
1273 t = self.lookup_class_schemaIDGUID(cls)
1275 if t != last_inherited_type:
1277 return (sd_clean, sd)
1282 def err_wrong_sd(self, dn, sd, sd_broken):
1283 '''re-write the SD due to incorrect inherited ACEs'''
1284 sd_attr = "nTSecurityDescriptor"
1285 sd_val = ndr_pack(sd)
1286 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1288 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
1289 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
1292 nmsg = ldb.Message()
1294 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1295 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1296 "Failed to fix attribute %s" % sd_attr):
1297 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1299 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
1300 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
1301 sd_attr = "nTSecurityDescriptor"
1302 sd_val = ndr_pack(sd)
1303 sd_old_val = ndr_pack(sd_old)
1304 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1305 if sd.owner_sid is not None:
1306 sd_flags |= security.SECINFO_OWNER
1307 if sd.group_sid is not None:
1308 sd_flags |= security.SECINFO_GROUP
1310 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
1311 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
1316 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1317 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
1318 "Failed to reset attribute %s" % sd_attr):
1319 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1321 def err_missing_sd_owner(self, dn, sd):
1322 '''re-write the SD due to a missing owner or group'''
1323 sd_attr = "nTSecurityDescriptor"
1324 sd_val = ndr_pack(sd)
1325 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
1327 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
1328 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
1331 nmsg = ldb.Message()
1333 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1335 # By setting the session_info to admin_session_info and
1336 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
1337 # flags we cause the descriptor module to set the correct
1338 # owner and group on the SD, replacing the None/NULL values
1339 # for owner_sid and group_sid currently present.
1341 # The admin_session_info matches that used in provision, and
1342 # is the best guess we can make for an existing object that
1343 # hasn't had something specifically set.
1345 # This is important for the dns related naming contexts.
1346 self.samdb.set_session_info(self.admin_session_info)
1347 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1348 "Failed to fix metadata for attribute %s" % sd_attr):
1349 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1350 self.samdb.set_session_info(self.system_session_info)
1353 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
1354 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1355 str(repl_meta_data))
1359 # Search for a zero invocationID
1360 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1364 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
1365 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
1366 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
1367 % (dn, o.attid, o.version,
1368 time.ctime(samba.nttime2unix(o.originating_change_time)),
1369 self.samdb.get_invocation_id()))
1374 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
1375 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1376 str(repl_meta_data))
1378 now = samba.unix2nttime(int(time.time()))
1381 # Search for a zero invocationID
1382 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1386 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
1387 o.version = o.version + 1
1388 o.originating_change_time = now
1389 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
1390 o.originating_usn = seq
1394 replBlob = ndr_pack(repl)
1398 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
1399 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
1400 self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
1403 nmsg = ldb.Message()
1405 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1406 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1407 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
1408 "Failed to fix attribute %s" % attr):
1409 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1412 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1413 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1414 str(repl_meta_data))
1417 # Search for an invalid attid
1419 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1421 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1425 def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
1426 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1427 str(repl_meta_data))
1431 remove_attid = set()
1434 in_schema_nc = dn.is_child_of(self.schema_dn)
1437 # Sort the array, except for the last element. This strange
1438 # construction, creating a new list, due to bugs in samba's
1439 # array handling in IDL generated objects.
1440 ctr.array = sorted(ctr.array[:], key=lambda o: o.attid)
1441 # Now walk it in reverse, so we see the low (and so incorrect,
1442 # the correct values are above 0x80000000) values first and
1443 # remove the 'second' value we see.
1444 for o in reversed(ctr.array):
1445 print "%s: 0x%08x" % (dn, o.attid)
1446 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1447 if att.lower() in set_att:
1448 self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
1449 if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
1450 % (attr, dn, o.attid, att, hash_att[att].attid),
1451 'fix_replmetadata_duplicate_attid'):
1452 self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
1453 % (o.attid, att, attr, dn))
1456 remove_attid.add(o.attid)
1457 # We want to set the metadata for the most recent
1458 # update to have been applied locally, that is the metadata
1459 # matching the (eg string) value in the attribute
1460 if o.local_usn > hash_att[att].local_usn:
1461 # This is always what we would have sent over DRS,
1462 # because the DRS server will have sent the
1463 # msDS-IntID, but with the values from both
1464 # attribute entries.
1465 hash_att[att].version = o.version
1466 hash_att[att].originating_change_time = o.originating_change_time
1467 hash_att[att].originating_invocation_id = o.originating_invocation_id
1468 hash_att[att].originating_usn = o.originating_usn
1469 hash_att[att].local_usn = o.local_usn
1471 # Do not re-add the value to the set or overwrite the hash value
1475 set_att.add(att.lower())
1477 # Generate a real list we can sort on properly
1478 new_list = [o for o in ctr.array if o.attid not in remove_attid]
1480 if (len(wrong_attids) > 0):
1482 if o.attid in wrong_attids:
1483 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1484 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
1485 self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
1486 if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
1487 % (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
1488 self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
1489 % (o.attid, correct_attid, att, attr, dn))
1492 o.attid = correct_attid
1494 # Sort the array, (we changed the value so must re-sort)
1495 new_list[:] = sorted(new_list[:], key=lambda o: o.attid)
1497 # If we did not already need to fix it, then ask about sorting
1499 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1500 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1501 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1502 self.report('Not fixing %s on %s\n' % (attr, dn))
1505 # The actual sort done is done at the top of the function
1507 ctr.count = len(new_list)
1508 ctr.array = new_list
1509 replBlob = ndr_pack(repl)
1511 nmsg = ldb.Message()
1513 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1514 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1515 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1516 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1517 "Failed to fix attribute %s" % attr):
1518 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1521 def is_deleted_deleted_objects(self, obj):
1523 if "description" not in obj:
1524 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1526 if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
1527 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1529 if "objectCategory" not in obj:
1530 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1532 if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
1533 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1535 if "isRecycled" in obj:
1536 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1538 if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
1539 self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
1541 if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
1542 obj['objectClass'][0] != 'top' or
1543 obj['objectClass'][1] != 'container'):
1544 self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
1546 if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
1547 self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
1551 def err_deleted_deleted_objects(self, obj):
1552 nmsg = ldb.Message()
1553 nmsg.dn = dn = obj.dn
1555 if "description" not in obj:
1556 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1557 if "showInAdvancedViewOnly" not in obj:
1558 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1559 if "objectCategory" not in obj:
1560 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1561 if "isCriticalSystemObject" not in obj:
1562 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1563 if "isRecycled" in obj:
1564 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1566 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1567 nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
1568 nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
1570 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1571 % (dn), 'fix_deleted_deleted_objects'):
1572 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1575 if self.do_modify(nmsg, ["relax:0"],
1576 "Failed to fix Deleted Objects container %s" % dn):
1577 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1579 def err_replica_locations(self, obj, cross_ref, attr):
1580 nmsg = ldb.Message()
1582 target = self.samdb.get_dsServiceName()
1584 if self.samdb.am_rodc():
1585 self.report('Not fixing %s for the RODC' % (attr, obj.dn))
1588 if not self.confirm_all('Add yourself to the replica locations for %s?'
1589 % (obj.dn), 'fix_replica_locations'):
1590 self.report('Not fixing missing/incorrect attributes on %s\n' % (obj.dn))
1593 nmsg[attr] = ldb.MessageElement(target, ldb.FLAG_MOD_ADD, attr)
1594 if self.do_modify(nmsg, [], "Failed to add %s for %s" % (attr, obj.dn)):
1595 self.report("Fixed %s for %s" % (attr, obj.dn))
1597 def is_fsmo_role(self, dn):
1598 if dn == self.samdb.domain_dn:
1600 if dn == self.infrastructure_dn:
1602 if dn == self.naming_dn:
1604 if dn == self.schema_dn:
1606 if dn == self.rid_dn:
1611 def calculate_instancetype(self, dn):
1613 nc_root = self.samdb.get_nc_root(dn)
1615 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1617 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1618 except ldb.LdbError, (enum, estr):
1619 if enum != ldb.ERR_NO_SUCH_OBJECT:
1622 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1624 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1625 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1629 def get_wellknown_sd(self, dn):
1630 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1632 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1633 return ndr_unpack(security.descriptor,
1634 descriptor_fn(domain_sid,
1635 name_map=self.name_map))
1639 def check_object(self, dn, attrs=['*']):
1640 '''check one object'''
1642 self.report("Checking object %s" % dn)
1644 # If we modify the pass-by-reference attrs variable, then we get a
1645 # replPropertyMetadata for every object that we check.
1647 if "dn" in map(str.lower, attrs):
1648 attrs.append("name")
1649 if "distinguishedname" in map(str.lower, attrs):
1650 attrs.append("name")
1651 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1652 attrs.append("name")
1653 if 'name' in map(str.lower, attrs):
1654 attrs.append(dn.get_rdn_name())
1655 attrs.append("isDeleted")
1656 attrs.append("systemFlags")
1658 attrs.append("replPropertyMetaData")
1660 attrs.append("objectGUID")
1664 sd_flags |= security.SECINFO_OWNER
1665 sd_flags |= security.SECINFO_GROUP
1666 sd_flags |= security.SECINFO_DACL
1667 sd_flags |= security.SECINFO_SACL
1669 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1674 "sd_flags:1:%d" % sd_flags,
1675 "reveal_internals:0",
1678 except ldb.LdbError, (enum, estr):
1679 if enum == ldb.ERR_NO_SUCH_OBJECT:
1680 if self.in_transaction:
1681 self.report("ERROR: Object %s disappeared during check" % dn)
1686 self.report("ERROR: Object %s failed to load during check" % dn)
1690 set_attrs_from_md = set()
1691 set_attrs_seen = set()
1692 got_repl_property_meta_data = False
1693 got_objectclass = False
1695 nc_dn = self.samdb.get_nc_root(obj.dn)
1697 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1698 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1700 # We have no deleted objects DN for schema, and we check for this above for the other
1702 deleted_objects_dn = None
1705 object_rdn_attr = None
1706 object_rdn_val = None
1711 for attrname in obj:
1712 if attrname == 'dn' or attrname == "distinguishedName":
1715 if str(attrname).lower() == 'objectclass':
1716 got_objectclass = True
1718 if str(attrname).lower() == "name":
1719 if len(obj[attrname]) != 1:
1721 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1722 (len(obj[attrname]), attrname, str(obj.dn)))
1724 name_val = obj[attrname][0]
1726 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1727 object_rdn_attr = attrname
1728 if len(obj[attrname]) != 1:
1730 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1731 (len(obj[attrname]), attrname, str(obj.dn)))
1733 object_rdn_val = obj[attrname][0]
1735 if str(attrname).lower() == 'isdeleted':
1736 if obj[attrname][0] != "FALSE":
1739 if str(attrname).lower() == 'systemflags':
1740 systemFlags = int(obj[attrname][0])
1742 if str(attrname).lower() == 'replpropertymetadata':
1743 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1745 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1746 # We don't continue, as we may also have other fixes for this attribute
1747 # based on what other attributes we see.
1750 (set_attrs_from_md, list_attid_from_md, wrong_attids) \
1751 = self.process_metadata(dn, obj[attrname])
1754 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1757 if len(set_attrs_from_md) < len(list_attid_from_md) \
1758 or len(wrong_attids) > 0 \
1759 or sorted(list_attid_from_md) != list_attid_from_md:
1761 self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
1764 # Here we check that the first attid is 0
1766 if list_attid_from_md[0] != 0:
1768 self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
1769 (attrname, str(dn)))
1771 got_repl_property_meta_data = True
1774 if str(attrname).lower() == 'ntsecuritydescriptor':
1775 (sd, sd_broken) = self.process_sd(dn, obj)
1776 if sd_broken is not None:
1777 self.err_wrong_sd(dn, sd, sd_broken)
1781 if sd.owner_sid is None or sd.group_sid is None:
1782 self.err_missing_sd_owner(dn, sd)
1786 if self.reset_well_known_acls:
1788 well_known_sd = self.get_wellknown_sd(dn)
1792 current_sd = ndr_unpack(security.descriptor,
1793 str(obj[attrname][0]))
1795 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1797 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1802 if str(attrname).lower() == 'objectclass':
1803 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
1804 # Do not consider the attribute incorrect if:
1805 # - The sorted (alphabetically) list is the same, inclding case
1806 # - The first and last elements are the same
1808 # This avoids triggering an error due to
1809 # non-determinism in the sort routine in (at least)
1810 # 4.3 and earlier, and the fact that any AUX classes
1811 # in these attributes are also not sorted when
1812 # imported from Windows (they are just in the reverse
1813 # order of last set)
1814 if sorted(normalised) != sorted(obj[attrname]) \
1815 or normalised[0] != obj[attrname][0] \
1816 or normalised[-1] != obj[attrname][-1]:
1817 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1821 if str(attrname).lower() == 'userparameters':
1822 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1824 self.err_short_userParameters(obj, attrname, obj[attrname])
1827 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1828 # This is the correct, normal prefix
1831 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1832 # this is the typical prefix from a windows migration
1834 self.err_base64_userParameters(obj, attrname, obj[attrname])
1837 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':
1838 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1840 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1843 elif len(obj[attrname][0]) % 2 != 0:
1844 # This is a value that isn't even in length
1846 self.err_odd_userParameters(obj, attrname, obj[attrname])
1849 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':
1850 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1852 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1855 if attrname.lower() == 'attributeid' or attrname.lower() == 'governsid':
1856 if obj[attrname][0] in self.attribute_or_class_ids:
1858 self.report('Error: %s %s on %s already exists as an attributeId or governsId'
1859 % (attrname, obj.dn, obj[attrname][0]))
1861 self.attribute_or_class_ids.add(obj[attrname][0])
1863 # check for empty attributes
1864 for val in obj[attrname]:
1866 self.err_empty_attribute(dn, attrname)
1870 # get the syntax oid for the attribute, so we can can have
1871 # special handling for some specific attribute types
1873 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1874 except Exception, msg:
1875 self.err_unknown_attribute(obj, attrname)
1879 linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
1881 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1882 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1883 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1885 set_attrs_seen.add(str(attrname).lower())
1887 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1888 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1889 # it's some form of DN, do specialised checking on those
1890 error_count += self.check_dn(obj, attrname, syntax_oid)
1894 # check for incorrectly normalised attributes
1895 for val in obj[attrname]:
1896 values.add(str(val))
1898 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
1899 if len(normalised) != 1 or normalised[0] != val:
1900 self.err_normalise_mismatch(dn, attrname, obj[attrname])
1904 if len(obj[attrname]) != len(values):
1905 self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
1909 if str(attrname).lower() == "instancetype":
1910 calculated_instancetype = self.calculate_instancetype(dn)
1911 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
1913 self.err_wrong_instancetype(obj, calculated_instancetype)
1915 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
1917 self.err_missing_objectclass(dn)
1919 if ("*" in attrs or "name" in map(str.lower, attrs)):
1920 if name_val is None:
1922 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
1923 if object_rdn_attr is None:
1925 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
1927 if name_val is not None:
1930 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
1931 parent_dn = deleted_objects_dn
1932 if parent_dn is None:
1933 parent_dn = obj.dn.parent()
1934 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
1935 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
1937 if obj.dn == deleted_objects_dn:
1938 expected_dn = obj.dn
1940 if expected_dn != obj.dn:
1942 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
1943 elif obj.dn.get_rdn_value() != object_rdn_val:
1945 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
1948 if got_repl_property_meta_data:
1949 if obj.dn == deleted_objects_dn:
1950 isDeletedAttId = 131120
1951 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
1953 expectedTimeDo = 2650466015990000000
1954 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
1955 if originating != expectedTimeDo:
1956 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
1957 nmsg = ldb.Message()
1959 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1961 self.samdb.modify(nmsg, controls=["provision:0"])
1964 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
1966 for att in set_attrs_seen.difference(set_attrs_from_md):
1968 self.report("On object %s" % dn)
1971 self.report("ERROR: Attribute %s not present in replication metadata" % att)
1972 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
1973 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
1975 self.fix_metadata(obj, att)
1977 if self.is_fsmo_role(dn):
1978 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
1979 self.err_no_fsmoRoleOwner(obj)
1983 if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
1984 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
1985 controls=["show_recycled:1", "show_deleted:1"])
1986 except ldb.LdbError, (enum, estr):
1987 if enum == ldb.ERR_NO_SUCH_OBJECT:
1988 self.err_missing_parent(obj)
1993 if dn in self.deleted_objects_containers and '*' in attrs:
1994 if self.is_deleted_deleted_objects(obj):
1995 self.err_deleted_deleted_objects(obj)
1998 for (dns_part, msg) in self.dns_partitions:
1999 if dn == dns_part and 'repsFrom' in obj:
2000 location = "msDS-NC-Replica-Locations"
2001 if self.samdb.am_rodc():
2002 location = "msDS-NC-RO-Replica-Locations"
2004 if location not in msg:
2005 # There are no replica locations!
2006 self.err_replica_locations(obj, msg.dn, location)
2011 for loc in msg[location]:
2012 if loc == self.samdb.get_dsServiceName():
2015 # This DC is not in the replica locations
2016 self.err_replica_locations(obj, msg.dn, location)
2019 if dn == self.server_ref_dn:
2020 # Check we have a valid RID Set
2021 if "*" in attrs or "rIDSetReferences" in attrs:
2022 if "rIDSetReferences" not in obj:
2023 # NO RID SET reference
2024 # We are RID master, allocate it.
2027 if self.is_rid_master:
2028 # Allocate a RID Set
2029 if self.confirm_all('Allocate the missing RID set for RID master?',
2030 'fix_missing_rid_set_master'):
2032 # We don't have auto-transaction logic on
2033 # extended operations, so we have to do it
2036 self.samdb.transaction_start()
2039 self.samdb.create_own_rid_set()
2042 self.samdb.transaction_cancel()
2045 self.samdb.transaction_commit()
2048 elif not self.samdb.am_rodc():
2049 self.report("No RID Set found for this server: %s, and we are not the RID Master (so can not self-allocate)" % dn)
2052 # Check some details of our own RID Set
2053 if dn == self.rid_set_dn:
2054 res = self.samdb.search(base=self.rid_set_dn, scope=ldb.SCOPE_BASE,
2055 attrs=["rIDAllocationPool",
2056 "rIDPreviousAllocationPool",
2059 if "rIDAllocationPool" not in res[0]:
2060 self.report("No rIDAllocationPool found in %s" % dn)
2063 next_pool = int(res[0]["rIDAllocationPool"][0])
2065 high = (0xFFFFFFFF00000000 & next_pool) >> 32
2066 low = 0x00000000FFFFFFFF & next_pool
2069 self.report("Invalid RID set %d-%s, %d > %d!" % (low, high, low, high))
2072 if "rIDNextRID" in res[0]:
2073 next_free_rid = int(res[0]["rIDNextRID"][0])
2077 if next_free_rid == 0:
2082 # Check the remainder of this pool for conflicts. If
2083 # ridalloc_allocate_rid() moves to a new pool, this
2084 # will be above high, so we will stop.
2085 while next_free_rid <= high:
2086 sid = "%s-%d" % (self.samdb.get_domain_sid(), next_free_rid)
2088 res = self.samdb.search(base="<SID=%s>" % sid, scope=ldb.SCOPE_BASE,
2090 except ldb.LdbError, (enum, estr):
2091 if enum != ldb.ERR_NO_SUCH_OBJECT:
2095 self.report("SID %s for %s conflicts with our current RID set in %s" % (sid, res[0].dn, dn))
2098 if self.confirm_all('Fix conflict between SID %s and RID pool in %s by allocating a new RID?'
2100 'fix_sid_rid_set_conflict'):
2101 self.samdb.transaction_start()
2103 # This will burn RIDs, which will move
2104 # past the conflict. We then check again
2105 # to see if the new RID conflicts, until
2106 # the end of the current pool. We don't
2107 # look at the next pool to avoid burning
2108 # all RIDs in one go in some strange
2112 allocated_rid = self.samdb.allocate_rid()
2113 if allocated_rid >= next_free_rid:
2114 next_free_rid = allocated_rid + 1
2117 self.samdb.transaction_cancel()
2120 self.samdb.transaction_commit()
2129 ################################################################
2130 # check special @ROOTDSE attributes
2131 def check_rootdse(self):
2132 '''check the @ROOTDSE special object'''
2133 dn = ldb.Dn(self.samdb, '@ROOTDSE')
2135 self.report("Checking object %s" % dn)
2136 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
2138 self.report("Object %s disappeared during check" % dn)
2143 # check that the dsServiceName is in GUID form
2144 if not 'dsServiceName' in obj:
2145 self.report('ERROR: dsServiceName missing in @ROOTDSE')
2146 return error_count+1
2148 if not obj['dsServiceName'][0].startswith('<GUID='):
2149 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
2151 if not self.confirm('Change dsServiceName to GUID form?'):
2153 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
2154 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
2155 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
2158 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
2159 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
2160 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
2161 self.report("Changed dsServiceName to GUID form")
2165 ###############################################
2166 # re-index the database
2167 def reindex_database(self):
2168 '''re-index the whole database'''
2170 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
2171 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
2172 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
2173 return self.do_modify(m, [], 're-indexed database', validate=False)
2175 ###############################################
2177 def reset_modules(self):
2178 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
2180 m.dn = ldb.Dn(self.samdb, "@MODULES")
2181 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
2182 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)