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
36 class dbcheck(object):
37 """check a SAM database for errors"""
39 def __init__(self, samdb, samdb_schema=None, verbose=False, fix=False,
40 yes=False, quiet=False, in_transaction=False,
41 reset_well_known_acls=False):
43 self.dict_oid_name = None
44 self.samdb_schema = (samdb_schema or samdb)
45 self.verbose = verbose
49 self.remove_all_unknown_attributes = False
50 self.remove_all_empty_attributes = False
51 self.fix_all_normalisation = False
52 self.fix_all_DN_GUIDs = False
53 self.fix_all_binary_dn = False
54 self.remove_all_deleted_DN_links = False
55 self.fix_all_target_mismatch = False
56 self.fix_all_metadata = False
57 self.fix_time_metadata = False
58 self.fix_all_missing_backlinks = False
59 self.fix_all_orphaned_backlinks = False
60 self.fix_rmd_flags = False
61 self.fix_ntsecuritydescriptor = False
62 self.fix_ntsecuritydescriptor_owner_group = False
63 self.seize_fsmo_role = False
64 self.move_to_lost_and_found = False
65 self.fix_instancetype = False
66 self.fix_replmetadata_zero_invocationid = False
67 self.fix_replmetadata_unsorted_attid = False
68 self.fix_deleted_deleted_objects = False
70 self.fix_base64_userparameters = False
71 self.fix_utf8_userparameters = False
72 self.fix_doubled_userparameters = False
73 self.reset_well_known_acls = reset_well_known_acls
74 self.reset_all_well_known_acls = False
75 self.in_transaction = in_transaction
76 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
77 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
78 self.schema_dn = samdb.get_schema_basedn()
79 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
80 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
81 self.class_schemaIDGUID = {}
82 self.wellknown_sds = get_wellknown_sds(self.samdb)
83 self.fix_all_missing_objectclass = False
87 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
89 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
90 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
91 except ldb.LdbError, (enum, estr):
92 if enum != ldb.ERR_NO_SUCH_OBJECT:
96 self.system_session_info = system_session()
97 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
99 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
100 if "msDS-hasMasterNCs" in res[0]:
101 self.write_ncs = res[0]["msDS-hasMasterNCs"]
103 # If the Forest Level is less than 2003 then there is no
104 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
105 # no need to merge as all the NCs that are in hasMasterNCs must
106 # also be in msDS-hasMasterNCs (but not the opposite)
107 if "hasMasterNCs" in res[0]:
108 self.write_ncs = res[0]["hasMasterNCs"]
110 self.write_ncs = None
112 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
114 ncs = res[0]["namingContexts"]
115 self.deleted_objects_containers = []
118 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
119 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
120 self.deleted_objects_containers.append(dn)
128 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
129 '''perform a database check, returning the number of errors found'''
131 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
132 self.report('Checking %u objects' % len(res))
136 error_count += self.check_object(object.dn, attrs=attrs)
139 error_count += self.check_rootdse()
141 if error_count != 0 and not self.fix:
142 self.report("Please use --fix to fix these errors")
144 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
147 def report(self, msg):
148 '''print a message unless quiet is set'''
152 def confirm(self, msg, allow_all=False, forced=False):
153 '''confirm a change'''
160 return common.confirm(msg, forced=forced, allow_all=allow_all)
162 ################################################################
163 # a local confirm function with support for 'all'
164 def confirm_all(self, msg, all_attr):
165 '''confirm a change with support for "all" '''
170 if getattr(self, all_attr) == 'NONE':
172 if getattr(self, all_attr) == 'ALL':
176 c = common.confirm(msg, forced=forced, allow_all=True)
178 setattr(self, all_attr, 'ALL')
181 setattr(self, all_attr, 'NONE')
185 def do_delete(self, dn, controls, msg):
186 '''delete dn with optional verbose output'''
188 self.report("delete DN %s" % dn)
190 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
191 self.samdb.delete(dn, controls=controls)
192 except Exception, err:
193 self.report("%s : %s" % (msg, err))
197 def do_modify(self, m, controls, msg, validate=True):
198 '''perform a modify with optional verbose output'''
200 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
202 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
203 self.samdb.modify(m, controls=controls, validate=validate)
204 except Exception, err:
205 self.report("%s : %s" % (msg, err))
209 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
210 '''perform a modify with optional verbose output'''
212 self.report("""dn: %s
216 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
218 to_dn = to_rdn + to_base
219 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
220 self.samdb.rename(from_dn, to_dn, controls=controls)
221 except Exception, err:
222 self.report("%s : %s" % (msg, err))
226 def err_empty_attribute(self, dn, attrname):
227 '''fix empty attributes'''
228 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
229 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
230 self.report("Not fixing empty attribute %s" % attrname)
235 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
236 if self.do_modify(m, ["relax:0", "show_recycled:1"],
237 "Failed to remove empty attribute %s" % attrname, validate=False):
238 self.report("Removed empty attribute %s" % attrname)
240 def err_normalise_mismatch(self, dn, attrname, values):
241 '''fix attribute normalisation errors'''
242 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
245 normalised = self.samdb.dsdb_normalise_attributes(
246 self.samdb_schema, attrname, [val])
247 if len(normalised) != 1:
248 self.report("Unable to normalise value '%s'" % val)
249 mod_list.append((val, ''))
250 elif (normalised[0] != val):
251 self.report("value '%s' should be '%s'" % (val, normalised[0]))
252 mod_list.append((val, normalised[0]))
253 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
254 self.report("Not fixing attribute %s" % attrname)
259 for i in range(0, len(mod_list)):
260 (val, nval) = mod_list[i]
261 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
263 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
266 if self.do_modify(m, ["relax:0", "show_recycled:1"],
267 "Failed to normalise attribute %s" % attrname,
269 self.report("Normalised attribute %s" % attrname)
271 def err_normalise_mismatch_replace(self, dn, attrname, values):
272 '''fix attribute normalisation errors'''
273 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
274 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
275 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
276 if list(normalised) == values:
278 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
279 self.report("Not fixing attribute '%s'" % attrname)
284 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
286 if self.do_modify(m, ["relax:0", "show_recycled:1"],
287 "Failed to normalise attribute %s" % attrname,
289 self.report("Normalised attribute %s" % attrname)
291 def is_deleted_objects_dn(self, dsdb_dn):
292 '''see if a dsdb_Dn is the special Deleted Objects DN'''
293 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
295 def err_missing_objectclass(self, dn):
296 """handle object without objectclass"""
297 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)))
298 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'):
299 self.report("Not deleting object with missing objectclass '%s'" % dn)
301 if self.do_delete(dn, ["relax:0"],
302 "Failed to remove DN %s" % dn):
303 self.report("Removed DN %s" % dn)
305 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn):
306 """handle a DN pointing to a deleted object"""
307 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
308 self.report("Target GUID points at deleted DN %s" % correct_dn)
309 if not self.confirm_all('Remove DN link?', 'remove_all_deleted_DN_links'):
310 self.report("Not removing")
314 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
315 if self.do_modify(m, ["show_recycled:1", "local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK],
316 "Failed to remove deleted DN attribute %s" % attrname):
317 self.report("Removed deleted DN on attribute %s" % attrname)
319 def err_missing_dn_GUID(self, dn, attrname, val, dsdb_dn):
320 """handle a missing target DN (both GUID and DN string form are missing)"""
321 # check if its a backlink
322 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
323 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
324 self.report("Not removing dangling forward link")
326 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn)
328 def err_incorrect_dn_GUID(self, dn, attrname, val, dsdb_dn, errstr):
329 """handle a missing GUID extended DN component"""
330 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
331 controls=["extended_dn:1:1", "show_recycled:1"]
333 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
334 attrs=[], controls=controls)
335 except ldb.LdbError, (enum, estr):
336 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
337 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
340 self.report("unable to find object for DN %s" % dsdb_dn.dn)
341 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
343 dsdb_dn.dn = res[0].dn
345 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
346 self.report("Not fixing %s" % errstr)
350 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
351 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
353 if self.do_modify(m, ["show_recycled:1"],
354 "Failed to fix %s on attribute %s" % (errstr, attrname)):
355 self.report("Fixed %s on attribute %s" % (errstr, attrname))
357 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
358 """handle an incorrect binary DN component"""
359 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
360 controls=["extended_dn:1:1", "show_recycled:1"]
362 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
363 self.report("Not fixing %s" % errstr)
367 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
368 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
370 if self.do_modify(m, ["show_recycled:1"],
371 "Failed to fix %s on attribute %s" % (errstr, attrname)):
372 self.report("Fixed %s on attribute %s" % (errstr, attrname))
374 def err_dn_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, errstr):
375 """handle a DN string being incorrect"""
376 self.report("ERROR: incorrect DN string component for %s in object %s - %s" % (attrname, dn, val))
377 dsdb_dn.dn = correct_dn
379 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_target_mismatch'):
380 self.report("Not fixing %s" % errstr)
384 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
385 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
386 if self.do_modify(m, ["show_recycled:1"],
387 "Failed to fix incorrect DN string on attribute %s" % attrname):
388 self.report("Fixed incorrect DN string on attribute %s" % (attrname))
390 def err_unknown_attribute(self, obj, attrname):
391 '''handle an unknown attribute error'''
392 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
393 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
394 self.report("Not removing %s" % attrname)
398 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
399 if self.do_modify(m, ["relax:0", "show_recycled:1"],
400 "Failed to remove unknown attribute %s" % attrname):
401 self.report("Removed unknown attribute %s" % (attrname))
403 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
404 '''handle a missing backlink value'''
405 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
406 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
407 self.report("Not fixing missing backlink %s" % backlink_name)
411 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
412 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, attrname)
413 if self.do_modify(m, ["show_recycled:1"],
414 "Failed to fix missing backlink %s" % backlink_name):
415 self.report("Fixed missing backlink %s" % (backlink_name))
417 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
418 '''handle a incorrect RMD_FLAGS value'''
419 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
420 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()))
421 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
422 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
426 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
427 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
428 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
429 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
431 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
432 '''handle a orphaned backlink value'''
433 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
434 if not self.confirm_all('Remove orphaned backlink %s' % link_name, 'fix_all_orphaned_backlinks'):
435 self.report("Not removing orphaned backlink %s" % link_name)
439 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
440 if self.do_modify(m, ["show_recycled:1", "relax:0"],
441 "Failed to fix orphaned backlink %s" % link_name):
442 self.report("Fixed orphaned backlink %s" % (link_name))
444 def err_no_fsmoRoleOwner(self, obj):
445 '''handle a missing fSMORoleOwner'''
446 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
447 res = self.samdb.search("",
448 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
450 serviceName = res[0]["dsServiceName"][0]
451 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
452 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
456 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
457 if self.do_modify(m, [],
458 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
459 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
461 def err_missing_parent(self, obj):
462 '''handle a missing parent'''
463 self.report("ERROR: parent object not found for %s" % (obj.dn))
464 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
465 self.report('Not moving object %s into LostAndFound' % (obj.dn))
468 keep_transaction = True
469 self.samdb.transaction_start()
471 nc_root = self.samdb.get_nc_root(obj.dn);
472 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
473 new_dn = ldb.Dn(self.samdb, str(obj.dn))
474 new_dn.remove_base_components(len(new_dn) - 1)
475 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
476 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
477 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
481 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
483 if self.do_modify(m, [],
484 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
485 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
486 keep_transaction = True
488 self.samdb.transaction_cancel()
492 self.samdb.transaction_commit()
494 self.samdb.transaction_cancel()
496 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
497 '''handle a wrong dn'''
499 new_rdn = ldb.Dn(self.samdb, str(new_dn))
500 new_rdn.remove_base_components(len(new_rdn) - 1)
501 new_parent = new_dn.parent()
504 if rdn_val != name_val:
505 attributes += "%s=%r " % (rdn_attr, rdn_val)
506 attributes += "name=%r" % (name_val)
508 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
509 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
510 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
513 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
514 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
515 self.report("Renamed %s into %s" % (obj.dn, new_dn))
517 def err_wrong_instancetype(self, obj, calculated_instancetype):
518 '''handle a wrong instanceType'''
519 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
520 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
521 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
526 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
527 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
528 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
529 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
531 def err_short_userParameters(self, obj, attrname, value):
532 # This is a truncated userParameters due to a pre 4.1 replication bug
533 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)))
535 def err_base64_userParameters(self, obj, attrname, value):
536 '''handle a wrong userParameters'''
537 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
538 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
539 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
544 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
545 if self.do_modify(m, [],
546 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
547 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
549 def err_utf8_userParameters(self, obj, attrname, value):
550 '''handle a wrong userParameters'''
551 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
552 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
553 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
558 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
559 ldb.FLAG_MOD_REPLACE, 'userParameters')
560 if self.do_modify(m, [],
561 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
562 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
564 def err_doubled_userParameters(self, obj, attrname, value):
565 '''handle a wrong userParameters'''
566 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
567 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
568 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
573 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
574 ldb.FLAG_MOD_REPLACE, 'userParameters')
575 if self.do_modify(m, [],
576 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
577 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
579 def err_odd_userParameters(self, obj, attrname):
580 # This is a truncated userParameters due to a pre 4.1 replication bug
581 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)))
583 def find_revealed_link(self, dn, attrname, guid):
584 '''return a revealed link in an object'''
585 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
586 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
587 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
588 for val in res[0][attrname]:
589 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
590 guid2 = dsdb_dn.dn.get_extended_component("GUID")
595 def check_dn(self, obj, attrname, syntax_oid):
596 '''check a DN attribute for correctness'''
598 for val in obj[attrname]:
599 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
601 # all DNs should have a GUID component
602 guid = dsdb_dn.dn.get_extended_component("GUID")
605 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn,
609 guidstr = str(misc.GUID(guid))
611 attrs = ['isDeleted']
613 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
614 fixing_msDS_HasInstantiatedNCs = True
615 attrs.append("instanceType")
617 fixing_msDS_HasInstantiatedNCs = False
619 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
620 reverse_link_name = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
621 if reverse_link_name is not None:
622 attrs.append(reverse_link_name)
624 # check its the right GUID
626 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
627 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1"])
628 except ldb.LdbError, (enum, estr):
630 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn, "incorrect GUID")
633 if fixing_msDS_HasInstantiatedNCs:
634 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
635 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
637 if str(dsdb_dn) != val:
639 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
642 # now we have two cases - the source object might or might not be deleted
643 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
644 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
646 # the target DN is not allowed to be deleted, unless the target DN is the
647 # special Deleted Objects container
648 if target_is_deleted and not is_deleted and not self.is_deleted_objects_dn(dsdb_dn):
650 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn)
653 # check the DN matches in string form
654 if res[0].dn.extended_str() != dsdb_dn.dn.extended_str():
656 self.err_dn_target_mismatch(obj.dn, attrname, val, dsdb_dn,
657 res[0].dn, "incorrect string version of DN")
660 if is_deleted and not target_is_deleted and reverse_link_name is not None:
661 revealed_dn = self.find_revealed_link(obj.dn, attrname, guid)
662 rmd_flags = revealed_dn.dn.get_extended_component("RMD_FLAGS")
663 if rmd_flags is not None and (int(rmd_flags) & 1) == 0:
664 # the RMD_FLAGS for this link should be 1, as the target is deleted
665 self.err_incorrect_rmd_flags(obj, attrname, revealed_dn)
668 # check the reverse_link is correct if there should be one
669 if reverse_link_name is not None:
671 if reverse_link_name in res[0]:
672 for v in res[0][reverse_link_name]:
673 if v == obj.dn.extended_str():
678 self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
680 self.err_missing_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
686 def get_originating_time(self, val, attid):
687 '''Read metadata properties and return the originating time for
690 :return: the originating time or 0 if not found
693 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
696 for o in repl.ctr.array:
698 return o.originating_change_time
702 def process_metadata(self, val):
703 '''Read metadata properties and list attributes in it.
704 raises KeyError if the attid is unknown.'''
709 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
712 for o in repl.ctr.array:
713 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
714 list_att.append(att.lower())
715 list_attid.append(o.attid)
717 return (list_att, list_attid)
720 def fix_metadata(self, dn, attr):
721 '''re-write replPropertyMetaData elements for a single attribute for a
722 object. This is used to fix missing replPropertyMetaData elements'''
723 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
724 controls = ["search_options:1:2", "show_recycled:1"])
728 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
729 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
730 "Failed to fix metadata for attribute %s" % attr):
731 self.report("Fixed metadata for attribute %s" % attr)
733 def ace_get_effective_inherited_type(self, ace):
734 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
738 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
740 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
742 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
744 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
750 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
753 return str(ace.object.inherited_type)
755 def lookup_class_schemaIDGUID(self, cls):
756 if cls in self.class_schemaIDGUID:
757 return self.class_schemaIDGUID[cls]
759 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
760 res = self.samdb.search(base=self.schema_dn,
762 attrs=["schemaIDGUID"])
763 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
765 self.class_schemaIDGUID[cls] = t
768 def process_sd(self, dn, obj):
769 sd_attr = "nTSecurityDescriptor"
770 sd_val = obj[sd_attr]
772 sd = ndr_unpack(security.descriptor, str(sd_val))
774 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
776 # we don't fix deleted objects
779 sd_clean = security.descriptor()
780 sd_clean.owner_sid = sd.owner_sid
781 sd_clean.group_sid = sd.group_sid
782 sd_clean.type = sd.type
783 sd_clean.revision = sd.revision
786 last_inherited_type = None
789 if sd.sacl is not None:
791 for i in range(0, len(aces)):
794 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
795 sd_clean.sacl_add(ace)
798 t = self.ace_get_effective_inherited_type(ace)
802 if last_inherited_type is not None:
803 if t != last_inherited_type:
804 # if it inherited from more than
805 # one type it's very likely to be broken
807 # If not the recalculation will calculate
812 last_inherited_type = t
815 if sd.dacl is not None:
817 for i in range(0, len(aces)):
820 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
821 sd_clean.dacl_add(ace)
824 t = self.ace_get_effective_inherited_type(ace)
828 if last_inherited_type is not None:
829 if t != last_inherited_type:
830 # if it inherited from more than
831 # one type it's very likely to be broken
833 # If not the recalculation will calculate
838 last_inherited_type = t
841 return (sd_clean, sd)
843 if last_inherited_type is None:
849 cls = obj["objectClass"][-1]
854 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
855 attrs=["isDeleted", "objectClass"],
856 controls=["show_recycled:1"])
858 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
860 # we don't fix deleted objects
862 cls = o["objectClass"][-1]
864 t = self.lookup_class_schemaIDGUID(cls)
866 if t != last_inherited_type:
868 return (sd_clean, sd)
873 def err_wrong_sd(self, dn, sd, sd_broken):
874 '''re-write the SD due to incorrect inherited ACEs'''
875 sd_attr = "nTSecurityDescriptor"
876 sd_val = ndr_pack(sd)
877 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
879 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
880 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
885 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
886 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
887 "Failed to fix attribute %s" % sd_attr):
888 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
890 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
891 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
892 sd_attr = "nTSecurityDescriptor"
893 sd_val = ndr_pack(sd)
894 sd_old_val = ndr_pack(sd_old)
895 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
896 if sd.owner_sid is not None:
897 sd_flags |= security.SECINFO_OWNER
898 if sd.group_sid is not None:
899 sd_flags |= security.SECINFO_GROUP
901 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
902 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
907 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
908 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
909 "Failed to reset attribute %s" % sd_attr):
910 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
912 def err_missing_sd_owner(self, dn, sd):
913 '''re-write the SD due to a missing owner or group'''
914 sd_attr = "nTSecurityDescriptor"
915 sd_val = ndr_pack(sd)
916 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
918 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
919 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
924 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
926 # By setting the session_info to admin_session_info and
927 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
928 # flags we cause the descriptor module to set the correct
929 # owner and group on the SD, replacing the None/NULL values
930 # for owner_sid and group_sid currently present.
932 # The admin_session_info matches that used in provision, and
933 # is the best guess we can make for an existing object that
934 # hasn't had something specifically set.
936 # This is important for the dns related naming contexts.
937 self.samdb.set_session_info(self.admin_session_info)
938 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
939 "Failed to fix metadata for attribute %s" % sd_attr):
940 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
941 self.samdb.set_session_info(self.system_session_info)
944 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
945 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
950 # Search for a zero invocationID
951 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
955 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
956 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
957 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
958 % (dn, o.attid, o.version,
959 time.ctime(samba.nttime2unix(o.originating_change_time)),
960 self.samdb.get_invocation_id()))
965 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
966 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
969 now = samba.unix2nttime(int(time.time()))
972 # Search for a zero invocationID
973 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
977 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
978 o.version = o.version + 1
979 o.originating_change_time = now
980 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
981 o.originating_usn = seq
985 replBlob = ndr_pack(repl)
989 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
990 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
991 self.report('Not fixing %s on %s\n' % (attr, dn))
996 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
997 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
998 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
999 "Failed to fix attribute %s" % attr):
1000 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1003 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1004 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1005 str(repl_meta_data))
1008 # Search for an invalid attid
1010 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1012 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1016 def err_replmetadata_unsorted_attid(self, dn, attr, repl_meta_data):
1017 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1018 str(repl_meta_data))
1022 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1023 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1024 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1025 self.report('Not fixing %s on %s\n' % (attr, dn))
1028 # Sort the array, except for the last element
1029 ctr.array[:-1] = sorted(ctr.array[:-1], key=lambda o: o.attid)
1031 replBlob = ndr_pack(repl)
1033 nmsg = ldb.Message()
1035 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1036 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1037 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1038 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1039 "Failed to fix attribute %s" % attr):
1040 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1043 def is_deleted_deleted_objects(self, obj):
1045 if "description" not in obj:
1046 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1048 if "showInAdvancedViewOnly" not in obj:
1049 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1051 if "objectCategory" not in obj:
1052 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1054 if "isCriticalSystemObject" not in obj:
1055 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1057 if "isRecycled" in obj:
1058 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1063 def err_deleted_deleted_objects(self, obj):
1064 nmsg = ldb.Message()
1065 nmsg.dn = dn = obj.dn
1067 if "description" not in obj:
1068 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1069 if "showInAdvancedViewOnly" not in obj:
1070 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1071 if "objectCategory" not in obj:
1072 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1073 if "isCriticalSystemObject" not in obj:
1074 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1075 if "isRecycled" in obj:
1076 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1078 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1079 % (dn), 'fix_deleted_deleted_objects'):
1080 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1083 if self.do_modify(nmsg, ["relax:0"],
1084 "Failed to fix Deleted Objects container %s" % dn):
1085 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1088 def is_fsmo_role(self, dn):
1089 if dn == self.samdb.domain_dn:
1091 if dn == self.infrastructure_dn:
1093 if dn == self.naming_dn:
1095 if dn == self.schema_dn:
1097 if dn == self.rid_dn:
1102 def calculate_instancetype(self, dn):
1104 nc_root = self.samdb.get_nc_root(dn)
1106 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1108 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1109 except ldb.LdbError, (enum, estr):
1110 if enum != ldb.ERR_NO_SUCH_OBJECT:
1113 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1115 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1116 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1120 def get_wellknown_sd(self, dn):
1121 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1123 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1124 return ndr_unpack(security.descriptor,
1125 descriptor_fn(domain_sid,
1126 name_map=self.name_map))
1130 def check_object(self, dn, attrs=['*']):
1131 '''check one object'''
1133 self.report("Checking object %s" % dn)
1134 if "dn" in map(str.lower, attrs):
1135 attrs.append("name")
1136 if "distinguishedname" in map(str.lower, attrs):
1137 attrs.append("name")
1138 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1139 attrs.append("name")
1140 if 'name' in map(str.lower, attrs):
1141 attrs.append(dn.get_rdn_name())
1142 attrs.append("isDeleted")
1143 attrs.append("systemFlags")
1145 attrs.append("replPropertyMetaData")
1149 sd_flags |= security.SECINFO_OWNER
1150 sd_flags |= security.SECINFO_GROUP
1151 sd_flags |= security.SECINFO_DACL
1152 sd_flags |= security.SECINFO_SACL
1154 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1159 "sd_flags:1:%d" % sd_flags,
1162 except ldb.LdbError, (enum, estr):
1163 if enum == ldb.ERR_NO_SUCH_OBJECT:
1164 if self.in_transaction:
1165 self.report("ERROR: Object %s disappeared during check" % dn)
1170 self.report("ERROR: Object %s failed to load during check" % dn)
1174 list_attrs_from_md = []
1175 list_attrs_seen = []
1176 got_repl_property_meta_data = False
1177 got_objectclass = False
1179 nc_dn = self.samdb.get_nc_root(obj.dn)
1181 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1182 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1184 deleted_objects_dn = ldb.Dn(self.samdb, "CN=Deleted Objects,%s" % nc_dn)
1186 object_rdn_attr = None
1187 object_rdn_val = None
1192 for attrname in obj:
1193 if attrname == 'dn':
1196 if str(attrname).lower() == 'objectclass':
1197 got_objectclass = True
1199 if str(attrname).lower() == "name":
1200 if len(obj[attrname]) != 1:
1202 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1203 (len(obj[attrname]), attrname, str(obj.dn)))
1205 name_val = obj[attrname][0]
1207 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1208 object_rdn_attr = attrname
1209 if len(obj[attrname]) != 1:
1211 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1212 (len(obj[attrname]), attrname, str(obj.dn)))
1214 object_rdn_val = obj[attrname][0]
1216 if str(attrname).lower() == 'isdeleted':
1217 if obj[attrname][0] != "FALSE":
1220 if str(attrname).lower() == 'systemflags':
1221 systemFlags = int(obj[attrname][0])
1223 if str(attrname).lower() == 'replpropertymetadata':
1224 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1226 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1227 # We don't continue, as we may also have other fixes for this attribute
1228 # based on what other attributes we see.
1231 (list_attrs_from_md, list_attid_from_md) = self.process_metadata(obj[attrname])
1234 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1237 if sorted(list_attid_from_md[:-1]) != list_attid_from_md[:-1]:
1239 self.err_replmetadata_unsorted_attid(dn, attrname, obj[attrname])
1241 got_repl_property_meta_data = True
1244 if str(attrname).lower() == 'ntsecuritydescriptor':
1245 (sd, sd_broken) = self.process_sd(dn, obj)
1246 if sd_broken is not None:
1247 self.err_wrong_sd(dn, sd, sd_broken)
1251 if sd.owner_sid is None or sd.group_sid is None:
1252 self.err_missing_sd_owner(dn, sd)
1256 if self.reset_well_known_acls:
1258 well_known_sd = self.get_wellknown_sd(dn)
1262 current_sd = ndr_unpack(security.descriptor,
1263 str(obj[attrname][0]))
1265 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1267 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1272 if str(attrname).lower() == 'objectclass':
1273 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, list(obj[attrname]))
1274 if list(normalised) != list(obj[attrname]):
1275 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1279 if str(attrname).lower() == 'userparameters':
1280 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1282 self.err_short_userParameters(obj, attrname, obj[attrname])
1285 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1286 # This is the correct, normal prefix
1289 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1290 # this is the typical prefix from a windows migration
1292 self.err_base64_userParameters(obj, attrname, obj[attrname])
1295 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':
1296 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1298 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1301 elif len(obj[attrname][0]) % 2 != 0:
1302 # This is a value that isn't even in length
1304 self.err_odd_userParameters(obj, attrname, obj[attrname])
1307 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':
1308 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1310 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1313 # check for empty attributes
1314 for val in obj[attrname]:
1316 self.err_empty_attribute(dn, attrname)
1320 # get the syntax oid for the attribute, so we can can have
1321 # special handling for some specific attribute types
1323 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1324 except Exception, msg:
1325 self.err_unknown_attribute(obj, attrname)
1329 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1330 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1331 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1332 and not self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)):
1333 list_attrs_seen.append(str(attrname).lower())
1335 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1336 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1337 # it's some form of DN, do specialised checking on those
1338 error_count += self.check_dn(obj, attrname, syntax_oid)
1340 # check for incorrectly normalised attributes
1341 for val in obj[attrname]:
1342 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
1343 if len(normalised) != 1 or normalised[0] != val:
1344 self.err_normalise_mismatch(dn, attrname, obj[attrname])
1348 if str(attrname).lower() == "instancetype":
1349 calculated_instancetype = self.calculate_instancetype(dn)
1350 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
1352 self.err_wrong_instancetype(obj, calculated_instancetype)
1354 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
1356 self.err_missing_objectclass(dn)
1358 if ("*" in attrs or "name" in map(str.lower, attrs)):
1359 if name_val is None:
1361 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
1362 if object_rdn_attr is None:
1364 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
1366 if name_val is not None:
1369 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
1370 parent_dn = deleted_objects_dn
1371 if parent_dn is None:
1372 parent_dn = obj.dn.parent()
1373 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
1374 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
1376 if obj.dn == deleted_objects_dn:
1377 expected_dn = obj.dn
1379 if expected_dn != obj.dn:
1381 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
1382 elif obj.dn.get_rdn_value() != object_rdn_val:
1384 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
1387 if got_repl_property_meta_data:
1388 if obj.dn == deleted_objects_dn:
1389 isDeletedAttId = 131120
1390 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
1392 expectedTimeDo = 2650466015990000000
1393 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
1394 if originating != expectedTimeDo:
1395 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
1396 nmsg = ldb.Message()
1398 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1400 self.samdb.modify(nmsg, controls=["provision:0"])
1403 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
1404 for att in list_attrs_seen:
1405 if not att in list_attrs_from_md:
1407 self.report("On object %s" % dn)
1410 self.report("ERROR: Attribute %s not present in replication metadata" % att)
1411 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
1412 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
1414 self.fix_metadata(dn, att)
1416 if self.is_fsmo_role(dn):
1417 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
1418 self.err_no_fsmoRoleOwner(obj)
1422 if dn != self.samdb.get_root_basedn():
1423 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
1424 controls=["show_recycled:1", "show_deleted:1"])
1425 except ldb.LdbError, (enum, estr):
1426 if enum == ldb.ERR_NO_SUCH_OBJECT:
1427 self.err_missing_parent(obj)
1432 if dn in self.deleted_objects_containers and '*' in attrs:
1433 if self.is_deleted_deleted_objects(obj):
1434 self.err_deleted_deleted_objects(obj)
1439 ################################################################
1440 # check special @ROOTDSE attributes
1441 def check_rootdse(self):
1442 '''check the @ROOTDSE special object'''
1443 dn = ldb.Dn(self.samdb, '@ROOTDSE')
1445 self.report("Checking object %s" % dn)
1446 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
1448 self.report("Object %s disappeared during check" % dn)
1453 # check that the dsServiceName is in GUID form
1454 if not 'dsServiceName' in obj:
1455 self.report('ERROR: dsServiceName missing in @ROOTDSE')
1456 return error_count+1
1458 if not obj['dsServiceName'][0].startswith('<GUID='):
1459 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
1461 if not self.confirm('Change dsServiceName to GUID form?'):
1463 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
1464 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
1465 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
1468 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
1469 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
1470 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
1471 self.report("Changed dsServiceName to GUID form")
1475 ###############################################
1476 # re-index the database
1477 def reindex_database(self):
1478 '''re-index the whole database'''
1480 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
1481 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
1482 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
1483 return self.do_modify(m, [], 're-indexed database', validate=False)
1485 ###############################################
1487 def reset_modules(self):
1488 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
1490 m.dn = ldb.Dn(self.samdb, "@MODULES")
1491 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
1492 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)