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 samba import dsdb
24 from samba import common
25 from samba.dcerpc import misc
26 from samba.ndr import ndr_unpack, ndr_pack
27 from samba.dcerpc import drsblobs
28 from samba.common import dsdb_Dn
29 from samba.dcerpc import security
30 from samba.descriptor import get_wellknown_sds, get_diff_sds
31 from samba.auth import system_session, admin_session
34 class dbcheck(object):
35 """check a SAM database for errors"""
37 def __init__(self, samdb, samdb_schema=None, verbose=False, fix=False,
38 yes=False, quiet=False, in_transaction=False,
39 reset_well_known_acls=False):
41 self.dict_oid_name = None
42 self.samdb_schema = (samdb_schema or samdb)
43 self.verbose = verbose
47 self.remove_all_unknown_attributes = False
48 self.remove_all_empty_attributes = False
49 self.fix_all_normalisation = False
50 self.fix_all_DN_GUIDs = False
51 self.fix_all_binary_dn = False
52 self.remove_all_deleted_DN_links = False
53 self.fix_all_target_mismatch = False
54 self.fix_all_metadata = False
55 self.fix_time_metadata = False
56 self.fix_all_missing_backlinks = False
57 self.fix_all_orphaned_backlinks = False
58 self.fix_rmd_flags = False
59 self.fix_ntsecuritydescriptor = False
60 self.fix_ntsecuritydescriptor_owner_group = False
61 self.seize_fsmo_role = False
62 self.move_to_lost_and_found = False
63 self.fix_instancetype = False
64 self.fix_replmetadata_zero_invocationid = False
65 self.fix_deleted_deleted_objects = False
66 self.reset_well_known_acls = reset_well_known_acls
67 self.reset_all_well_known_acls = False
68 self.in_transaction = in_transaction
69 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
70 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
71 self.schema_dn = samdb.get_schema_basedn()
72 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
73 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
74 self.class_schemaIDGUID = {}
75 self.wellknown_sds = get_wellknown_sds(self.samdb)
76 self.fix_all_missing_objectclass = False
80 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
82 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
83 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
84 except ldb.LdbError, (enum, estr):
85 if enum != ldb.ERR_NO_SUCH_OBJECT:
89 self.system_session_info = system_session()
90 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
92 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
93 if "msDS-hasMasterNCs" in res[0]:
94 self.write_ncs = res[0]["msDS-hasMasterNCs"]
96 # If the Forest Level is less than 2003 then there is no
97 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
98 # no need to merge as all the NCs that are in hasMasterNCs must
99 # also be in msDS-hasMasterNCs (but not the opposite)
100 if "hasMasterNCs" in res[0]:
101 self.write_ncs = res[0]["hasMasterNCs"]
103 self.write_ncs = None
105 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
107 ncs = res[0]["namingContexts"]
108 self.deleted_objects_containers = []
111 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
112 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
113 self.deleted_objects_containers.append(dn)
121 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
122 '''perform a database check, returning the number of errors found'''
124 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
125 self.report('Checking %u objects' % len(res))
129 error_count += self.check_object(object.dn, attrs=attrs)
132 error_count += self.check_rootdse()
134 if error_count != 0 and not self.fix:
135 self.report("Please use --fix to fix these errors")
137 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
140 def report(self, msg):
141 '''print a message unless quiet is set'''
145 def confirm(self, msg, allow_all=False, forced=False):
146 '''confirm a change'''
153 return common.confirm(msg, forced=forced, allow_all=allow_all)
155 ################################################################
156 # a local confirm function with support for 'all'
157 def confirm_all(self, msg, all_attr):
158 '''confirm a change with support for "all" '''
163 if getattr(self, all_attr) == 'NONE':
165 if getattr(self, all_attr) == 'ALL':
169 c = common.confirm(msg, forced=forced, allow_all=True)
171 setattr(self, all_attr, 'ALL')
174 setattr(self, all_attr, 'NONE')
178 def do_delete(self, dn, controls, msg):
179 '''delete dn with optional verbose output'''
181 self.report("delete DN %s" % dn)
183 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
184 self.samdb.delete(dn, controls=controls)
185 except Exception, err:
186 self.report("%s : %s" % (msg, err))
190 def do_modify(self, m, controls, msg, validate=True):
191 '''perform a modify with optional verbose output'''
193 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
195 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
196 self.samdb.modify(m, controls=controls, validate=validate)
197 except Exception, err:
198 self.report("%s : %s" % (msg, err))
202 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
203 '''perform a modify with optional verbose output'''
205 self.report("""dn: %s
209 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
211 to_dn = to_rdn + to_base
212 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
213 self.samdb.rename(from_dn, to_dn, controls=controls)
214 except Exception, err:
215 self.report("%s : %s" % (msg, err))
219 def err_empty_attribute(self, dn, attrname):
220 '''fix empty attributes'''
221 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
222 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
223 self.report("Not fixing empty attribute %s" % attrname)
228 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
229 if self.do_modify(m, ["relax:0", "show_recycled:1"],
230 "Failed to remove empty attribute %s" % attrname, validate=False):
231 self.report("Removed empty attribute %s" % attrname)
233 def err_normalise_mismatch(self, dn, attrname, values):
234 '''fix attribute normalisation errors'''
235 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
238 normalised = self.samdb.dsdb_normalise_attributes(
239 self.samdb_schema, attrname, [val])
240 if len(normalised) != 1:
241 self.report("Unable to normalise value '%s'" % val)
242 mod_list.append((val, ''))
243 elif (normalised[0] != val):
244 self.report("value '%s' should be '%s'" % (val, normalised[0]))
245 mod_list.append((val, normalised[0]))
246 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
247 self.report("Not fixing attribute %s" % attrname)
252 for i in range(0, len(mod_list)):
253 (val, nval) = mod_list[i]
254 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
256 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
259 if self.do_modify(m, ["relax:0", "show_recycled:1"],
260 "Failed to normalise attribute %s" % attrname,
262 self.report("Normalised attribute %s" % attrname)
264 def err_normalise_mismatch_replace(self, dn, attrname, values):
265 '''fix attribute normalisation errors'''
266 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
267 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
268 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
269 if list(normalised) == values:
271 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
272 self.report("Not fixing attribute '%s'" % attrname)
277 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
279 if self.do_modify(m, ["relax:0", "show_recycled:1"],
280 "Failed to normalise attribute %s" % attrname,
282 self.report("Normalised attribute %s" % attrname)
284 def is_deleted_objects_dn(self, dsdb_dn):
285 '''see if a dsdb_Dn is the special Deleted Objects DN'''
286 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
288 def err_missing_objectclass(self, dn):
289 """handle object without objectclass"""
290 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)))
291 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'):
292 self.report("Not deleting object with missing objectclass '%s'" % dn)
294 if self.do_delete(dn, ["relax:0"],
295 "Failed to remove DN %s" % dn):
296 self.report("Removed DN %s" % dn)
298 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn):
299 """handle a DN pointing to a deleted object"""
300 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
301 self.report("Target GUID points at deleted DN %s" % correct_dn)
302 if not self.confirm_all('Remove DN link?', 'remove_all_deleted_DN_links'):
303 self.report("Not removing")
307 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
308 if self.do_modify(m, ["show_recycled:1", "local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK],
309 "Failed to remove deleted DN attribute %s" % attrname):
310 self.report("Removed deleted DN on attribute %s" % attrname)
312 def err_missing_dn_GUID(self, dn, attrname, val, dsdb_dn):
313 """handle a missing target DN (both GUID and DN string form are missing)"""
314 # check if its a backlink
315 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
316 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
317 self.report("Not removing dangling forward link")
319 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn)
321 def err_incorrect_dn_GUID(self, dn, attrname, val, dsdb_dn, errstr):
322 """handle a missing GUID extended DN component"""
323 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
324 controls=["extended_dn:1:1", "show_recycled:1"]
326 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
327 attrs=[], controls=controls)
328 except ldb.LdbError, (enum, estr):
329 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
330 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
333 self.report("unable to find object for DN %s" % dsdb_dn.dn)
334 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
336 dsdb_dn.dn = res[0].dn
338 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
339 self.report("Not fixing %s" % errstr)
343 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
344 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
346 if self.do_modify(m, ["show_recycled:1"],
347 "Failed to fix %s on attribute %s" % (errstr, attrname)):
348 self.report("Fixed %s on attribute %s" % (errstr, attrname))
350 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
351 """handle an incorrect binary DN component"""
352 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
353 controls=["extended_dn:1:1", "show_recycled:1"]
355 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
356 self.report("Not fixing %s" % errstr)
360 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
361 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
363 if self.do_modify(m, ["show_recycled:1"],
364 "Failed to fix %s on attribute %s" % (errstr, attrname)):
365 self.report("Fixed %s on attribute %s" % (errstr, attrname))
367 def err_dn_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, errstr):
368 """handle a DN string being incorrect"""
369 self.report("ERROR: incorrect DN string component for %s in object %s - %s" % (attrname, dn, val))
370 dsdb_dn.dn = correct_dn
372 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_target_mismatch'):
373 self.report("Not fixing %s" % errstr)
377 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
378 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
379 if self.do_modify(m, ["show_recycled:1"],
380 "Failed to fix incorrect DN string on attribute %s" % attrname):
381 self.report("Fixed incorrect DN string on attribute %s" % (attrname))
383 def err_unknown_attribute(self, obj, attrname):
384 '''handle an unknown attribute error'''
385 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
386 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
387 self.report("Not removing %s" % attrname)
391 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
392 if self.do_modify(m, ["relax:0", "show_recycled:1"],
393 "Failed to remove unknown attribute %s" % attrname):
394 self.report("Removed unknown attribute %s" % (attrname))
396 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
397 '''handle a missing backlink value'''
398 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
399 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
400 self.report("Not fixing missing backlink %s" % backlink_name)
404 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
405 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, attrname)
406 if self.do_modify(m, ["show_recycled:1"],
407 "Failed to fix missing backlink %s" % backlink_name):
408 self.report("Fixed missing backlink %s" % (backlink_name))
410 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
411 '''handle a incorrect RMD_FLAGS value'''
412 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
413 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()))
414 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
415 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
419 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
420 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
421 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
422 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
424 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
425 '''handle a orphaned backlink value'''
426 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
427 if not self.confirm_all('Remove orphaned backlink %s' % link_name, 'fix_all_orphaned_backlinks'):
428 self.report("Not removing orphaned backlink %s" % link_name)
432 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
433 if self.do_modify(m, ["show_recycled:1", "relax:0"],
434 "Failed to fix orphaned backlink %s" % link_name):
435 self.report("Fixed orphaned backlink %s" % (link_name))
437 def err_no_fsmoRoleOwner(self, obj):
438 '''handle a missing fSMORoleOwner'''
439 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
440 res = self.samdb.search("",
441 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
443 serviceName = res[0]["dsServiceName"][0]
444 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
445 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
449 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
450 if self.do_modify(m, [],
451 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
452 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
454 def err_missing_parent(self, obj):
455 '''handle a missing parent'''
456 self.report("ERROR: parent object not found for %s" % (obj.dn))
457 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
458 self.report('Not moving object %s into LostAndFound' % (obj.dn))
461 keep_transaction = True
462 self.samdb.transaction_start()
464 nc_root = self.samdb.get_nc_root(obj.dn);
465 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
466 new_dn = ldb.Dn(self.samdb, str(obj.dn))
467 new_dn.remove_base_components(len(new_dn) - 1)
468 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
469 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
470 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
474 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
476 if self.do_modify(m, [],
477 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
478 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
479 keep_transaction = True
481 self.samdb.transaction_cancel()
485 self.samdb.transaction_commit()
487 self.samdb.transaction_cancel()
490 def err_wrong_instancetype(self, obj, calculated_instancetype):
491 '''handle a wrong instanceType'''
492 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
493 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
494 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
499 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
500 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
501 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
502 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
504 def find_revealed_link(self, dn, attrname, guid):
505 '''return a revealed link in an object'''
506 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
507 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
508 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
509 for val in res[0][attrname]:
510 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
511 guid2 = dsdb_dn.dn.get_extended_component("GUID")
516 def check_dn(self, obj, attrname, syntax_oid):
517 '''check a DN attribute for correctness'''
519 for val in obj[attrname]:
520 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
522 # all DNs should have a GUID component
523 guid = dsdb_dn.dn.get_extended_component("GUID")
526 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn,
530 guidstr = str(misc.GUID(guid))
532 attrs = ['isDeleted']
534 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
535 fixing_msDS_HasInstantiatedNCs = True
536 attrs.append("instanceType")
538 fixing_msDS_HasInstantiatedNCs = False
540 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
541 reverse_link_name = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
542 if reverse_link_name is not None:
543 attrs.append(reverse_link_name)
545 # check its the right GUID
547 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
548 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1"])
549 except ldb.LdbError, (enum, estr):
551 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn, "incorrect GUID")
554 if fixing_msDS_HasInstantiatedNCs:
555 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
556 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
558 if str(dsdb_dn) != val:
560 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
563 # now we have two cases - the source object might or might not be deleted
564 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
565 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
567 # the target DN is not allowed to be deleted, unless the target DN is the
568 # special Deleted Objects container
569 if target_is_deleted and not is_deleted and not self.is_deleted_objects_dn(dsdb_dn):
571 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn)
574 # check the DN matches in string form
575 if res[0].dn.extended_str() != dsdb_dn.dn.extended_str():
577 self.err_dn_target_mismatch(obj.dn, attrname, val, dsdb_dn,
578 res[0].dn, "incorrect string version of DN")
581 if is_deleted and not target_is_deleted and reverse_link_name is not None:
582 revealed_dn = self.find_revealed_link(obj.dn, attrname, guid)
583 rmd_flags = revealed_dn.dn.get_extended_component("RMD_FLAGS")
584 if rmd_flags is not None and (int(rmd_flags) & 1) == 0:
585 # the RMD_FLAGS for this link should be 1, as the target is deleted
586 self.err_incorrect_rmd_flags(obj, attrname, revealed_dn)
589 # check the reverse_link is correct if there should be one
590 if reverse_link_name is not None:
592 if reverse_link_name in res[0]:
593 for v in res[0][reverse_link_name]:
594 if v == obj.dn.extended_str():
599 self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
601 self.err_missing_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
607 def get_originating_time(self, val, attid):
608 '''Read metadata properties and return the originating time for
611 :return: the originating time or 0 if not found
614 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
617 for o in repl.ctr.array:
619 return o.originating_change_time
623 def process_metadata(self, val):
624 '''Read metadata properties and list attributes in it'''
628 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
631 for o in repl.ctr.array:
632 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
633 list_att.append(att.lower())
638 def fix_metadata(self, dn, attr):
639 '''re-write replPropertyMetaData elements for a single attribute for a
640 object. This is used to fix missing replPropertyMetaData elements'''
641 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
642 controls = ["search_options:1:2", "show_recycled:1"])
646 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
647 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
648 "Failed to fix metadata for attribute %s" % attr):
649 self.report("Fixed metadata for attribute %s" % attr)
651 def ace_get_effective_inherited_type(self, ace):
652 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
656 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
658 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
660 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
662 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
668 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
671 return str(ace.object.inherited_type)
673 def lookup_class_schemaIDGUID(self, cls):
674 if cls in self.class_schemaIDGUID:
675 return self.class_schemaIDGUID[cls]
677 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
678 res = self.samdb.search(base=self.schema_dn,
680 attrs=["schemaIDGUID"])
681 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
683 self.class_schemaIDGUID[cls] = t
686 def process_sd(self, dn, obj):
687 sd_attr = "nTSecurityDescriptor"
688 sd_val = obj[sd_attr]
690 sd = ndr_unpack(security.descriptor, str(sd_val))
692 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
694 # we don't fix deleted objects
697 sd_clean = security.descriptor()
698 sd_clean.owner_sid = sd.owner_sid
699 sd_clean.group_sid = sd.group_sid
700 sd_clean.type = sd.type
701 sd_clean.revision = sd.revision
704 last_inherited_type = None
707 if sd.sacl is not None:
709 for i in range(0, len(aces)):
712 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
713 sd_clean.sacl_add(ace)
716 t = self.ace_get_effective_inherited_type(ace)
720 if last_inherited_type is not None:
721 if t != last_inherited_type:
722 # if it inherited from more than
723 # one type it's very likely to be broken
725 # If not the recalculation will calculate
730 last_inherited_type = t
733 if sd.dacl is not None:
735 for i in range(0, len(aces)):
738 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
739 sd_clean.dacl_add(ace)
742 t = self.ace_get_effective_inherited_type(ace)
746 if last_inherited_type is not None:
747 if t != last_inherited_type:
748 # if it inherited from more than
749 # one type it's very likely to be broken
751 # If not the recalculation will calculate
756 last_inherited_type = t
759 return (sd_clean, sd)
761 if last_inherited_type is None:
767 cls = obj["objectClass"][-1]
772 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
773 attrs=["isDeleted", "objectClass"],
774 controls=["show_recycled:1"])
776 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
778 # we don't fix deleted objects
780 cls = o["objectClass"][-1]
782 t = self.lookup_class_schemaIDGUID(cls)
784 if t != last_inherited_type:
786 return (sd_clean, sd)
791 def err_wrong_sd(self, dn, sd, sd_broken):
792 '''re-write the SD due to incorrect inherited ACEs'''
793 sd_attr = "nTSecurityDescriptor"
794 sd_val = ndr_pack(sd)
795 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
797 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
798 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
803 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
804 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
805 "Failed to fix attribute %s" % sd_attr):
806 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
808 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
809 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
810 sd_attr = "nTSecurityDescriptor"
811 sd_val = ndr_pack(sd)
812 sd_old_val = ndr_pack(sd_old)
813 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
814 if sd.owner_sid is not None:
815 sd_flags |= security.SECINFO_OWNER
816 if sd.group_sid is not None:
817 sd_flags |= security.SECINFO_GROUP
819 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
820 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
825 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
826 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
827 "Failed to reset attribute %s" % sd_attr):
828 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
830 def err_missing_sd_owner(self, dn, sd):
831 '''re-write the SD due to a missing owner or group'''
832 sd_attr = "nTSecurityDescriptor"
833 sd_val = ndr_pack(sd)
834 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
836 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
837 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
842 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
844 # By setting the session_info to admin_session_info and
845 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
846 # flags we cause the descriptor module to set the correct
847 # owner and group on the SD, replacing the None/NULL values
848 # for owner_sid and group_sid currently present.
850 # The admin_session_info matches that used in provision, and
851 # is the best guess we can make for an existing object that
852 # hasn't had something specifically set.
854 # This is important for the dns related naming contexts.
855 self.samdb.set_session_info(self.admin_session_info)
856 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
857 "Failed to fix metadata for attribute %s" % sd_attr):
858 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
859 self.samdb.set_session_info(self.system_session_info)
862 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
863 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
868 # Search for a zero invocationID
869 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
873 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
874 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
875 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
876 % (dn, o.attid, o.version,
877 time.ctime(samba.nttime2unix(o.originating_change_time)),
878 self.samdb.get_invocation_id()))
883 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
884 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
887 now = samba.unix2nttime(int(time.time()))
890 # Search for a zero invocationID
891 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
895 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
896 o.version = o.version + 1
897 o.originating_change_time = now
898 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
899 o.originating_usn = seq
903 replBlob = ndr_pack(repl)
907 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
908 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
909 self.report('Not fixing %s on %s\n' % (attr, dn))
914 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
915 if self.do_modify(nmsg, ["local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
916 "Failed to fix attribute %s" % attr):
917 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
920 def is_deleted_deleted_objects(self, obj):
922 if "description" not in obj:
923 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
925 if "showInAdvancedViewOnly" not in obj:
926 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
928 if "objectCategory" not in obj:
929 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
931 if "isCriticalSystemObject" not in obj:
932 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
934 if "isRecycled" in obj:
935 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
940 def err_deleted_deleted_objects(self, obj):
942 nmsg.dn = dn = obj.dn
944 if "description" not in obj:
945 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
946 if "showInAdvancedViewOnly" not in obj:
947 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
948 if "objectCategory" not in obj:
949 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
950 if "isCriticalSystemObject" not in obj:
951 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
952 if "isRecycled" in obj:
953 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
955 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
956 % (dn), 'fix_deleted_deleted_objects'):
957 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
960 if self.do_modify(nmsg, ["relax:0"],
961 "Failed to fix Deleted Objects container %s" % dn):
962 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
965 def is_fsmo_role(self, dn):
966 if dn == self.samdb.domain_dn:
968 if dn == self.infrastructure_dn:
970 if dn == self.naming_dn:
972 if dn == self.schema_dn:
974 if dn == self.rid_dn:
979 def calculate_instancetype(self, dn):
981 nc_root = self.samdb.get_nc_root(dn)
983 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
985 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
986 except ldb.LdbError, (enum, estr):
987 if enum != ldb.ERR_NO_SUCH_OBJECT:
990 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
992 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
993 instancetype |= dsdb.INSTANCE_TYPE_WRITE
997 def get_wellknown_sd(self, dn):
998 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1000 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1001 return ndr_unpack(security.descriptor,
1002 descriptor_fn(domain_sid,
1003 name_map=self.name_map))
1007 def check_object(self, dn, attrs=['*']):
1008 '''check one object'''
1010 self.report("Checking object %s" % dn)
1012 attrs.append("replPropertyMetaData")
1016 sd_flags |= security.SECINFO_OWNER
1017 sd_flags |= security.SECINFO_GROUP
1018 sd_flags |= security.SECINFO_DACL
1019 sd_flags |= security.SECINFO_SACL
1021 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1026 "sd_flags:1:%d" % sd_flags,
1029 except ldb.LdbError, (enum, estr):
1030 if enum == ldb.ERR_NO_SUCH_OBJECT:
1031 if self.in_transaction:
1032 self.report("ERROR: Object %s disappeared during check" % dn)
1037 self.report("ERROR: Object %s failed to load during check" % dn)
1041 list_attrs_from_md = []
1042 list_attrs_seen = []
1043 got_repl_property_meta_data = False
1044 got_objectclass = False
1046 for attrname in obj:
1047 if attrname == 'dn':
1050 if str(attrname).lower() == 'objectclass':
1051 got_objectclass = True
1053 if str(attrname).lower() == 'replpropertymetadata':
1054 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1056 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1057 # We don't continue, as we may also have other fixes for this attribute
1058 # based on what other attributes we see.
1060 list_attrs_from_md = self.process_metadata(obj[attrname])
1061 got_repl_property_meta_data = True
1064 if str(attrname).lower() == 'ntsecuritydescriptor':
1065 (sd, sd_broken) = self.process_sd(dn, obj)
1066 if sd_broken is not None:
1067 self.err_wrong_sd(dn, sd, sd_broken)
1071 if sd.owner_sid is None or sd.group_sid is None:
1072 self.err_missing_sd_owner(dn, sd)
1076 if self.reset_well_known_acls:
1078 well_known_sd = self.get_wellknown_sd(dn)
1082 current_sd = ndr_unpack(security.descriptor,
1083 str(obj[attrname][0]))
1085 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1087 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1092 if str(attrname).lower() == 'objectclass':
1093 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, list(obj[attrname]))
1094 if list(normalised) != list(obj[attrname]):
1095 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1099 # check for empty attributes
1100 for val in obj[attrname]:
1102 self.err_empty_attribute(dn, attrname)
1106 # get the syntax oid for the attribute, so we can can have
1107 # special handling for some specific attribute types
1109 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1110 except Exception, msg:
1111 self.err_unknown_attribute(obj, attrname)
1115 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1116 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1117 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1118 and not self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)):
1119 list_attrs_seen.append(str(attrname).lower())
1121 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1122 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1123 # it's some form of DN, do specialised checking on those
1124 error_count += self.check_dn(obj, attrname, syntax_oid)
1126 # check for incorrectly normalised attributes
1127 for val in obj[attrname]:
1128 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
1129 if len(normalised) != 1 or normalised[0] != val:
1130 self.err_normalise_mismatch(dn, attrname, obj[attrname])
1134 if str(attrname).lower() == "instancetype":
1135 calculated_instancetype = self.calculate_instancetype(dn)
1136 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
1138 self.err_wrong_instancetype(obj, calculated_instancetype)
1140 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
1142 self.err_missing_objectclass(dn)
1145 if got_repl_property_meta_data:
1146 rdn = (str(dn).split(","))[0]
1147 if rdn == "CN=Deleted Objects":
1148 isDeletedAttId = 131120
1149 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
1151 expectedTimeDo = 2650466015990000000
1152 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
1153 if originating != expectedTimeDo:
1154 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
1155 nmsg = ldb.Message()
1157 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1159 self.samdb.modify(nmsg, controls=["provision:0"])
1162 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
1163 for att in list_attrs_seen:
1164 if not att in list_attrs_from_md:
1166 self.report("On object %s" % dn)
1169 self.report("ERROR: Attribute %s not present in replication metadata" % att)
1170 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
1171 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
1173 self.fix_metadata(dn, att)
1175 if self.is_fsmo_role(dn):
1176 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
1177 self.err_no_fsmoRoleOwner(obj)
1181 if dn != self.samdb.get_root_basedn():
1182 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
1183 controls=["show_recycled:1", "show_deleted:1"])
1184 except ldb.LdbError, (enum, estr):
1185 if enum == ldb.ERR_NO_SUCH_OBJECT:
1186 self.err_missing_parent(obj)
1191 if dn in self.deleted_objects_containers and '*' in attrs:
1192 if self.is_deleted_deleted_objects(obj):
1193 self.err_deleted_deleted_objects(obj)
1198 ################################################################
1199 # check special @ROOTDSE attributes
1200 def check_rootdse(self):
1201 '''check the @ROOTDSE special object'''
1202 dn = ldb.Dn(self.samdb, '@ROOTDSE')
1204 self.report("Checking object %s" % dn)
1205 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
1207 self.report("Object %s disappeared during check" % dn)
1212 # check that the dsServiceName is in GUID form
1213 if not 'dsServiceName' in obj:
1214 self.report('ERROR: dsServiceName missing in @ROOTDSE')
1215 return error_count+1
1217 if not obj['dsServiceName'][0].startswith('<GUID='):
1218 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
1220 if not self.confirm('Change dsServiceName to GUID form?'):
1222 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
1223 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
1224 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
1227 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
1228 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
1229 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
1230 self.report("Changed dsServiceName to GUID form")
1234 ###############################################
1235 # re-index the database
1236 def reindex_database(self):
1237 '''re-index the whole database'''
1239 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
1240 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
1241 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
1242 return self.do_modify(m, [], 're-indexed database', validate=False)
1244 ###############################################
1246 def reset_modules(self):
1247 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
1249 m.dn = ldb.Dn(self.samdb, "@MODULES")
1250 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
1251 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)