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_duplicates = False
53 self.fix_all_DN_GUIDs = False
54 self.fix_all_binary_dn = False
55 self.remove_all_deleted_DN_links = False
56 self.fix_all_target_mismatch = False
57 self.fix_all_metadata = False
58 self.fix_time_metadata = False
59 self.fix_all_missing_backlinks = False
60 self.fix_all_orphaned_backlinks = False
61 self.fix_rmd_flags = False
62 self.fix_ntsecuritydescriptor = False
63 self.fix_ntsecuritydescriptor_owner_group = False
64 self.seize_fsmo_role = False
65 self.move_to_lost_and_found = False
66 self.fix_instancetype = False
67 self.fix_replmetadata_zero_invocationid = False
68 self.fix_replmetadata_duplicate_attid = False
69 self.fix_replmetadata_wrong_attid = False
70 self.fix_replmetadata_unsorted_attid = False
71 self.fix_deleted_deleted_objects = False
72 self.fix_incorrect_deleted_objects = False
74 self.fix_base64_userparameters = False
75 self.fix_utf8_userparameters = False
76 self.fix_doubled_userparameters = False
77 self.reset_well_known_acls = reset_well_known_acls
78 self.reset_all_well_known_acls = False
79 self.in_transaction = in_transaction
80 self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
81 self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
82 self.schema_dn = samdb.get_schema_basedn()
83 self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
84 self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
85 self.class_schemaIDGUID = {}
86 self.wellknown_sds = get_wellknown_sds(self.samdb)
87 self.fix_all_missing_objectclass = False
88 self.fix_missing_deleted_objects = False
94 res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
96 dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
97 self.name_map['DnsAdmins'] = str(dnsadmins_sid)
98 except ldb.LdbError, (enum, estr):
99 if enum != ldb.ERR_NO_SUCH_OBJECT:
103 self.system_session_info = system_session()
104 self.admin_session_info = admin_session(None, samdb.get_domain_sid())
106 res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
107 if "msDS-hasMasterNCs" in res[0]:
108 self.write_ncs = res[0]["msDS-hasMasterNCs"]
110 # If the Forest Level is less than 2003 then there is no
111 # msDS-hasMasterNCs, so we fall back to hasMasterNCs
112 # no need to merge as all the NCs that are in hasMasterNCs must
113 # also be in msDS-hasMasterNCs (but not the opposite)
114 if "hasMasterNCs" in res[0]:
115 self.write_ncs = res[0]["hasMasterNCs"]
117 self.write_ncs = None
119 res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
120 self.deleted_objects_containers = []
121 self.ncs_lacking_deleted_containers = []
123 self.ncs = res[0]["namingContexts"]
131 dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
132 dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
133 self.deleted_objects_containers.append(dn)
135 self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc))
137 def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
138 '''perform a database check, returning the number of errors found'''
139 res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
140 self.report('Checking %u objects' % len(res))
143 error_count += self.check_deleted_objects_containers()
145 self.attribute_or_class_ids = set()
148 self.dn_set.add(str(object.dn))
149 error_count += self.check_object(object.dn, attrs=attrs)
152 error_count += self.check_rootdse()
154 if error_count != 0 and not self.fix:
155 self.report("Please use --fix to fix these errors")
157 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
161 def check_deleted_objects_containers(self):
162 """This function only fixes conflicts on the Deleted Objects
163 containers, not the attributes"""
165 for nc in self.ncs_lacking_deleted_containers:
166 if nc == self.schema_dn:
169 self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
170 if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
173 dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
178 # If something already exists here, add a conflict
179 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
180 controls=["show_deleted:1", "extended_dn:1:1",
181 "show_recycled:1", "reveal_internals:0"])
183 guid = res[0].dn.get_extended_component("GUID")
184 conflict_dn = ldb.Dn(self.samdb,
185 "CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
186 conflict_dn.add_base(nc)
188 except ldb.LdbError, (enum, estr):
189 if enum == ldb.ERR_NO_SUCH_OBJECT:
192 self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
195 if conflict_dn is not None:
197 self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
198 except ldb.LdbError, (enum, estr):
199 self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
202 # Refresh wellKnownObjects links
203 res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
204 attrs=['wellKnownObjects'],
205 controls=["show_deleted:1", "extended_dn:0",
206 "show_recycled:1", "reveal_internals:0"])
208 self.report("wellKnownObjects was not found for NC %s" % nc)
211 # Prevent duplicate deleted objects containers just in case
212 wko = res[0]["wellKnownObjects"]
214 proposed_objectguid = None
216 dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
217 if self.is_deleted_objects_dn(dsdb_dn):
218 self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
219 # We really want to put this back in the same spot
220 # as the original one, so that on replication we
221 # merge, rather than conflict.
222 proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
225 if proposed_objectguid is not None:
226 guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
228 wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
229 listwko.append('%s:%s' % (wko_prefix, dn))
232 # Insert a brand new Deleted Objects container
233 self.samdb.add_ldif("""dn: %s
235 objectClass: container
236 description: Container for deleted objects
238 isCriticalSystemObject: TRUE
239 showInAdvancedViewOnly: TRUE
240 systemFlags: -1946157056%s""" % (dn, guid_suffix),
241 controls=["relax:0", "provision:0"])
243 delta = ldb.Message()
244 delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
245 delta["wellKnownObjects"] = ldb.MessageElement(listwko,
246 ldb.FLAG_MOD_REPLACE,
249 # Insert the link to the brand new container
250 if self.do_modify(delta, ["relax:0"],
251 "NC %s lacks Deleted Objects WKGUID" % nc,
253 self.report("Added %s well known guid link" % dn)
255 self.deleted_objects_containers.append(dn)
259 def report(self, msg):
260 '''print a message unless quiet is set'''
264 def confirm(self, msg, allow_all=False, forced=False):
265 '''confirm a change'''
272 return common.confirm(msg, forced=forced, allow_all=allow_all)
274 ################################################################
275 # a local confirm function with support for 'all'
276 def confirm_all(self, msg, all_attr):
277 '''confirm a change with support for "all" '''
282 if getattr(self, all_attr) == 'NONE':
284 if getattr(self, all_attr) == 'ALL':
288 c = common.confirm(msg, forced=forced, allow_all=True)
290 setattr(self, all_attr, 'ALL')
293 setattr(self, all_attr, 'NONE')
297 def do_delete(self, dn, controls, msg):
298 '''delete dn with optional verbose output'''
300 self.report("delete DN %s" % dn)
302 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
303 self.samdb.delete(dn, controls=controls)
304 except Exception, err:
305 self.report("%s : %s" % (msg, err))
309 def do_modify(self, m, controls, msg, validate=True):
310 '''perform a modify with optional verbose output'''
312 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
314 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
315 self.samdb.modify(m, controls=controls, validate=validate)
316 except Exception, err:
317 self.report("%s : %s" % (msg, err))
321 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
322 '''perform a modify with optional verbose output'''
324 self.report("""dn: %s
328 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
330 to_dn = to_rdn + to_base
331 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
332 self.samdb.rename(from_dn, to_dn, controls=controls)
333 except Exception, err:
334 self.report("%s : %s" % (msg, err))
338 def err_empty_attribute(self, dn, attrname):
339 '''fix empty attributes'''
340 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
341 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
342 self.report("Not fixing empty attribute %s" % attrname)
347 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
348 if self.do_modify(m, ["relax:0", "show_recycled:1"],
349 "Failed to remove empty attribute %s" % attrname, validate=False):
350 self.report("Removed empty attribute %s" % attrname)
352 def err_normalise_mismatch(self, dn, attrname, values):
353 '''fix attribute normalisation errors'''
354 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
357 normalised = self.samdb.dsdb_normalise_attributes(
358 self.samdb_schema, attrname, [val])
359 if len(normalised) != 1:
360 self.report("Unable to normalise value '%s'" % val)
361 mod_list.append((val, ''))
362 elif (normalised[0] != val):
363 self.report("value '%s' should be '%s'" % (val, normalised[0]))
364 mod_list.append((val, normalised[0]))
365 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
366 self.report("Not fixing attribute %s" % attrname)
371 for i in range(0, len(mod_list)):
372 (val, nval) = mod_list[i]
373 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
375 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
378 if self.do_modify(m, ["relax:0", "show_recycled:1"],
379 "Failed to normalise attribute %s" % attrname,
381 self.report("Normalised attribute %s" % attrname)
383 def err_normalise_mismatch_replace(self, dn, attrname, values):
384 '''fix attribute normalisation errors'''
385 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
386 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
387 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
388 if list(normalised) == values:
390 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
391 self.report("Not fixing attribute '%s'" % attrname)
396 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
398 if self.do_modify(m, ["relax:0", "show_recycled:1"],
399 "Failed to normalise attribute %s" % attrname,
401 self.report("Normalised attribute %s" % attrname)
403 def err_duplicate_values(self, dn, attrname, dup_values, values):
404 '''fix attribute normalisation errors'''
405 self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
406 self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
407 if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
408 self.report("Not fixing attribute '%s'" % attrname)
413 m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
415 if self.do_modify(m, ["relax:0", "show_recycled:1"],
416 "Failed to remove duplicate value on attribute %s" % attrname,
418 self.report("Removed duplicate value on attribute %s" % attrname)
420 def is_deleted_objects_dn(self, dsdb_dn):
421 '''see if a dsdb_Dn is the special Deleted Objects DN'''
422 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
424 def err_missing_objectclass(self, dn):
425 """handle object without objectclass"""
426 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)))
427 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'):
428 self.report("Not deleting object with missing objectclass '%s'" % dn)
430 if self.do_delete(dn, ["relax:0"],
431 "Failed to remove DN %s" % dn):
432 self.report("Removed DN %s" % dn)
434 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn):
435 """handle a DN pointing to a deleted object"""
436 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
437 self.report("Target GUID points at deleted DN %s" % correct_dn)
438 if not self.confirm_all('Remove DN link?', 'remove_all_deleted_DN_links'):
439 self.report("Not removing")
443 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
444 if self.do_modify(m, ["show_recycled:1", "local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK],
445 "Failed to remove deleted DN attribute %s" % attrname):
446 self.report("Removed deleted DN on attribute %s" % attrname)
448 def err_missing_dn_GUID(self, dn, attrname, val, dsdb_dn):
449 """handle a missing target DN (both GUID and DN string form are missing)"""
450 # check if its a backlink
451 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
452 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
453 self.report("Not removing dangling forward link")
455 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn)
457 def err_incorrect_dn_GUID(self, dn, attrname, val, dsdb_dn, errstr):
458 """handle a missing GUID extended DN component"""
459 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
460 controls=["extended_dn:1:1", "show_recycled:1"]
462 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
463 attrs=[], controls=controls)
464 except ldb.LdbError, (enum, estr):
465 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
466 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
469 self.report("unable to find object for DN %s" % dsdb_dn.dn)
470 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
472 dsdb_dn.dn = res[0].dn
474 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
475 self.report("Not fixing %s" % errstr)
479 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
480 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
482 if self.do_modify(m, ["show_recycled:1"],
483 "Failed to fix %s on attribute %s" % (errstr, attrname)):
484 self.report("Fixed %s on attribute %s" % (errstr, attrname))
486 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
487 """handle an incorrect binary DN component"""
488 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
489 controls=["extended_dn:1:1", "show_recycled:1"]
491 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
492 self.report("Not fixing %s" % errstr)
496 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
497 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
499 if self.do_modify(m, ["show_recycled:1"],
500 "Failed to fix %s on attribute %s" % (errstr, attrname)):
501 self.report("Fixed %s on attribute %s" % (errstr, attrname))
503 def err_dn_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, errstr):
504 """handle a DN string being incorrect"""
505 self.report("ERROR: incorrect DN string component for %s in object %s - %s" % (attrname, dn, val))
506 dsdb_dn.dn = correct_dn
508 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_target_mismatch'):
509 self.report("Not fixing %s" % errstr)
513 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
514 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
515 if self.do_modify(m, ["show_recycled:1"],
516 "Failed to fix incorrect DN string on attribute %s" % attrname):
517 self.report("Fixed incorrect DN string on attribute %s" % (attrname))
519 def err_unknown_attribute(self, obj, attrname):
520 '''handle an unknown attribute error'''
521 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
522 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
523 self.report("Not removing %s" % attrname)
527 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
528 if self.do_modify(m, ["relax:0", "show_recycled:1"],
529 "Failed to remove unknown attribute %s" % attrname):
530 self.report("Removed unknown attribute %s" % (attrname))
532 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
533 '''handle a missing backlink value'''
534 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
535 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
536 self.report("Not fixing missing backlink %s" % backlink_name)
540 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
541 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, attrname)
542 if self.do_modify(m, ["show_recycled:1"],
543 "Failed to fix missing backlink %s" % backlink_name):
544 self.report("Fixed missing backlink %s" % (backlink_name))
546 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
547 '''handle a incorrect RMD_FLAGS value'''
548 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
549 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()))
550 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
551 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
555 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
556 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
557 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
558 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
560 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
561 '''handle a orphaned backlink value'''
562 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
563 if not self.confirm_all('Remove orphaned backlink %s' % link_name, 'fix_all_orphaned_backlinks'):
564 self.report("Not removing orphaned backlink %s" % link_name)
568 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
569 if self.do_modify(m, ["show_recycled:1", "relax:0"],
570 "Failed to fix orphaned backlink %s" % link_name):
571 self.report("Fixed orphaned backlink %s" % (link_name))
573 def err_no_fsmoRoleOwner(self, obj):
574 '''handle a missing fSMORoleOwner'''
575 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
576 res = self.samdb.search("",
577 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
579 serviceName = res[0]["dsServiceName"][0]
580 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
581 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
585 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
586 if self.do_modify(m, [],
587 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
588 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
590 def err_missing_parent(self, obj):
591 '''handle a missing parent'''
592 self.report("ERROR: parent object not found for %s" % (obj.dn))
593 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
594 self.report('Not moving object %s into LostAndFound' % (obj.dn))
597 keep_transaction = True
598 self.samdb.transaction_start()
600 nc_root = self.samdb.get_nc_root(obj.dn);
601 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
602 new_dn = ldb.Dn(self.samdb, str(obj.dn))
603 new_dn.remove_base_components(len(new_dn) - 1)
604 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
605 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
606 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
610 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
612 if self.do_modify(m, [],
613 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
614 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
615 keep_transaction = True
617 self.samdb.transaction_cancel()
621 self.samdb.transaction_commit()
623 self.samdb.transaction_cancel()
625 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
626 '''handle a wrong dn'''
628 new_rdn = ldb.Dn(self.samdb, str(new_dn))
629 new_rdn.remove_base_components(len(new_rdn) - 1)
630 new_parent = new_dn.parent()
633 if rdn_val != name_val:
634 attributes += "%s=%r " % (rdn_attr, rdn_val)
635 attributes += "name=%r" % (name_val)
637 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
638 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
639 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
642 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
643 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
644 self.report("Renamed %s into %s" % (obj.dn, new_dn))
646 def err_wrong_instancetype(self, obj, calculated_instancetype):
647 '''handle a wrong instanceType'''
648 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
649 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
650 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
655 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
656 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
657 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
658 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
660 def err_short_userParameters(self, obj, attrname, value):
661 # This is a truncated userParameters due to a pre 4.1 replication bug
662 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)))
664 def err_base64_userParameters(self, obj, attrname, value):
665 '''handle a wrong userParameters'''
666 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
667 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
668 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
673 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
674 if self.do_modify(m, [],
675 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
676 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
678 def err_utf8_userParameters(self, obj, attrname, value):
679 '''handle a wrong userParameters'''
680 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
681 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
682 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
687 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
688 ldb.FLAG_MOD_REPLACE, 'userParameters')
689 if self.do_modify(m, [],
690 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
691 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
693 def err_doubled_userParameters(self, obj, attrname, value):
694 '''handle a wrong userParameters'''
695 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
696 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
697 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
702 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
703 ldb.FLAG_MOD_REPLACE, 'userParameters')
704 if self.do_modify(m, [],
705 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
706 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
708 def err_odd_userParameters(self, obj, attrname):
709 # This is a truncated userParameters due to a pre 4.1 replication bug
710 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)))
712 def find_revealed_link(self, dn, attrname, guid):
713 '''return a revealed link in an object'''
714 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
715 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
716 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
717 for val in res[0][attrname]:
718 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
719 guid2 = dsdb_dn.dn.get_extended_component("GUID")
724 def check_dn(self, obj, attrname, syntax_oid):
725 '''check a DN attribute for correctness'''
727 for val in obj[attrname]:
728 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
730 # all DNs should have a GUID component
731 guid = dsdb_dn.dn.get_extended_component("GUID")
734 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn,
738 guidstr = str(misc.GUID(guid))
740 attrs = ['isDeleted']
742 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
743 fixing_msDS_HasInstantiatedNCs = True
744 attrs.append("instanceType")
746 fixing_msDS_HasInstantiatedNCs = False
748 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
749 reverse_link_name = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
750 if reverse_link_name is not None:
751 attrs.append(reverse_link_name)
753 # check its the right GUID
755 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
756 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1"])
757 except ldb.LdbError, (enum, estr):
759 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn, "incorrect GUID")
762 if fixing_msDS_HasInstantiatedNCs:
763 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
764 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
766 if str(dsdb_dn) != val:
768 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
771 # now we have two cases - the source object might or might not be deleted
772 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
773 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
775 # the target DN is not allowed to be deleted, unless the target DN is the
776 # special Deleted Objects container
777 if target_is_deleted and not is_deleted and not self.is_deleted_objects_dn(dsdb_dn):
779 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn)
782 # check the DN matches in string form
783 if res[0].dn.extended_str() != dsdb_dn.dn.extended_str():
785 self.err_dn_target_mismatch(obj.dn, attrname, val, dsdb_dn,
786 res[0].dn, "incorrect string version of DN")
789 if is_deleted and not target_is_deleted and reverse_link_name is not None:
790 revealed_dn = self.find_revealed_link(obj.dn, attrname, guid)
791 rmd_flags = revealed_dn.dn.get_extended_component("RMD_FLAGS")
792 if rmd_flags is not None and (int(rmd_flags) & 1) == 0:
793 # the RMD_FLAGS for this link should be 1, as the target is deleted
794 self.err_incorrect_rmd_flags(obj, attrname, revealed_dn)
797 # check the reverse_link is correct if there should be one
798 if reverse_link_name is not None:
800 if reverse_link_name in res[0]:
801 for v in res[0][reverse_link_name]:
802 if v == obj.dn.extended_str():
807 self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
809 self.err_missing_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
815 def get_originating_time(self, val, attid):
816 '''Read metadata properties and return the originating time for
819 :return: the originating time or 0 if not found
822 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
825 for o in repl.ctr.array:
827 return o.originating_change_time
831 def process_metadata(self, dn, val):
832 '''Read metadata properties and list attributes in it.
833 raises KeyError if the attid is unknown.'''
838 in_schema_nc = dn.is_child_of(self.schema_dn)
840 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
843 for o in repl.ctr.array:
844 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
845 set_att.add(att.lower())
846 list_attid.append(o.attid)
847 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
848 is_schema_nc=in_schema_nc)
849 if correct_attid != o.attid:
850 wrong_attids.add(o.attid)
852 return (set_att, list_attid, wrong_attids)
855 def fix_metadata(self, dn, attr):
856 '''re-write replPropertyMetaData elements for a single attribute for a
857 object. This is used to fix missing replPropertyMetaData elements'''
858 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
859 controls = ["search_options:1:2", "show_recycled:1"])
863 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
864 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
865 "Failed to fix metadata for attribute %s" % attr):
866 self.report("Fixed metadata for attribute %s" % attr)
868 def ace_get_effective_inherited_type(self, ace):
869 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
873 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
875 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
877 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
879 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
885 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
888 return str(ace.object.inherited_type)
890 def lookup_class_schemaIDGUID(self, cls):
891 if cls in self.class_schemaIDGUID:
892 return self.class_schemaIDGUID[cls]
894 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
895 res = self.samdb.search(base=self.schema_dn,
897 attrs=["schemaIDGUID"])
898 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
900 self.class_schemaIDGUID[cls] = t
903 def process_sd(self, dn, obj):
904 sd_attr = "nTSecurityDescriptor"
905 sd_val = obj[sd_attr]
907 sd = ndr_unpack(security.descriptor, str(sd_val))
909 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
911 # we don't fix deleted objects
914 sd_clean = security.descriptor()
915 sd_clean.owner_sid = sd.owner_sid
916 sd_clean.group_sid = sd.group_sid
917 sd_clean.type = sd.type
918 sd_clean.revision = sd.revision
921 last_inherited_type = None
924 if sd.sacl is not None:
926 for i in range(0, len(aces)):
929 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
930 sd_clean.sacl_add(ace)
933 t = self.ace_get_effective_inherited_type(ace)
937 if last_inherited_type is not None:
938 if t != last_inherited_type:
939 # if it inherited from more than
940 # one type it's very likely to be broken
942 # If not the recalculation will calculate
947 last_inherited_type = t
950 if sd.dacl is not None:
952 for i in range(0, len(aces)):
955 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
956 sd_clean.dacl_add(ace)
959 t = self.ace_get_effective_inherited_type(ace)
963 if last_inherited_type is not None:
964 if t != last_inherited_type:
965 # if it inherited from more than
966 # one type it's very likely to be broken
968 # If not the recalculation will calculate
973 last_inherited_type = t
976 return (sd_clean, sd)
978 if last_inherited_type is None:
984 cls = obj["objectClass"][-1]
989 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
990 attrs=["isDeleted", "objectClass"],
991 controls=["show_recycled:1"])
993 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
995 # we don't fix deleted objects
997 cls = o["objectClass"][-1]
999 t = self.lookup_class_schemaIDGUID(cls)
1001 if t != last_inherited_type:
1003 return (sd_clean, sd)
1008 def err_wrong_sd(self, dn, sd, sd_broken):
1009 '''re-write the SD due to incorrect inherited ACEs'''
1010 sd_attr = "nTSecurityDescriptor"
1011 sd_val = ndr_pack(sd)
1012 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1014 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
1015 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
1018 nmsg = ldb.Message()
1020 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1021 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1022 "Failed to fix attribute %s" % sd_attr):
1023 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1025 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
1026 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
1027 sd_attr = "nTSecurityDescriptor"
1028 sd_val = ndr_pack(sd)
1029 sd_old_val = ndr_pack(sd_old)
1030 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1031 if sd.owner_sid is not None:
1032 sd_flags |= security.SECINFO_OWNER
1033 if sd.group_sid is not None:
1034 sd_flags |= security.SECINFO_GROUP
1036 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
1037 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
1042 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1043 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
1044 "Failed to reset attribute %s" % sd_attr):
1045 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1047 def err_missing_sd_owner(self, dn, sd):
1048 '''re-write the SD due to a missing owner or group'''
1049 sd_attr = "nTSecurityDescriptor"
1050 sd_val = ndr_pack(sd)
1051 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
1053 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
1054 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
1057 nmsg = ldb.Message()
1059 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1061 # By setting the session_info to admin_session_info and
1062 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
1063 # flags we cause the descriptor module to set the correct
1064 # owner and group on the SD, replacing the None/NULL values
1065 # for owner_sid and group_sid currently present.
1067 # The admin_session_info matches that used in provision, and
1068 # is the best guess we can make for an existing object that
1069 # hasn't had something specifically set.
1071 # This is important for the dns related naming contexts.
1072 self.samdb.set_session_info(self.admin_session_info)
1073 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1074 "Failed to fix metadata for attribute %s" % sd_attr):
1075 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1076 self.samdb.set_session_info(self.system_session_info)
1079 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
1080 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1081 str(repl_meta_data))
1085 # Search for a zero invocationID
1086 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1090 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
1091 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
1092 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
1093 % (dn, o.attid, o.version,
1094 time.ctime(samba.nttime2unix(o.originating_change_time)),
1095 self.samdb.get_invocation_id()))
1100 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
1101 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1102 str(repl_meta_data))
1104 now = samba.unix2nttime(int(time.time()))
1107 # Search for a zero invocationID
1108 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1112 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
1113 o.version = o.version + 1
1114 o.originating_change_time = now
1115 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
1116 o.originating_usn = seq
1120 replBlob = ndr_pack(repl)
1124 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
1125 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
1126 self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
1129 nmsg = ldb.Message()
1131 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1132 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1133 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
1134 "Failed to fix attribute %s" % attr):
1135 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1138 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1139 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1140 str(repl_meta_data))
1143 # Search for an invalid attid
1145 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1147 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1151 def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
1152 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1153 str(repl_meta_data))
1157 remove_attid = set()
1160 in_schema_nc = dn.is_child_of(self.schema_dn)
1163 # Sort the array, except for the last element. This strange
1164 # construction, creating a new list, due to bugs in samba's
1165 # array handling in IDL generated objects.
1166 ctr.array = sorted(ctr.array[:], key=lambda o: o.attid)
1167 # Now walk it in reverse, so we see the low (and so incorrect,
1168 # the correct values are above 0x80000000) values first and
1169 # remove the 'second' value we see.
1170 for o in reversed(ctr.array):
1171 print "%s: 0x%08x" % (dn, o.attid)
1172 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1173 if att.lower() in set_att:
1174 self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
1175 if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
1176 % (attr, dn, o.attid, att, hash_att[att].attid),
1177 'fix_replmetadata_duplicate_attid'):
1178 self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
1179 % (o.attid, att, attr, dn))
1182 remove_attid.add(o.attid)
1183 # We want to set the metadata for the most recent
1184 # update to have been applied locally, that is the metadata
1185 # matching the (eg string) value in the attribute
1186 if o.local_usn > hash_att[att].local_usn:
1187 # This is always what we would have sent over DRS,
1188 # because the DRS server will have sent the
1189 # msDS-IntID, but with the values from both
1190 # attribute entries.
1191 hash_att[att].version = o.version
1192 hash_att[att].originating_change_time = o.originating_change_time
1193 hash_att[att].originating_invocation_id = o.originating_invocation_id
1194 hash_att[att].originating_usn = o.originating_usn
1195 hash_att[att].local_usn = o.local_usn
1197 # Do not re-add the value to the set or overwrite the hash value
1201 set_att.add(att.lower())
1203 # Generate a real list we can sort on properly
1204 new_list = [o for o in ctr.array if o.attid not in remove_attid]
1206 if (len(wrong_attids) > 0):
1208 if o.attid in wrong_attids:
1209 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1210 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
1211 self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
1212 if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
1213 % (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
1214 self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
1215 % (o.attid, correct_attid, att, attr, dn))
1218 o.attid = correct_attid
1220 # Sort the array, (we changed the value so must re-sort)
1221 new_list[:] = sorted(new_list[:], key=lambda o: o.attid)
1223 # If we did not already need to fix it, then ask about sorting
1225 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1226 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1227 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1228 self.report('Not fixing %s on %s\n' % (attr, dn))
1231 # The actual sort done is done at the top of the function
1233 ctr.count = len(new_list)
1234 ctr.array = new_list
1235 replBlob = ndr_pack(repl)
1237 nmsg = ldb.Message()
1239 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1240 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1241 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1242 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1243 "Failed to fix attribute %s" % attr):
1244 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1247 def is_deleted_deleted_objects(self, obj):
1249 if "description" not in obj:
1250 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1252 if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
1253 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1255 if "objectCategory" not in obj:
1256 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1258 if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
1259 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1261 if "isRecycled" in obj:
1262 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1264 if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
1265 self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
1267 if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
1268 obj['objectClass'][0] != 'top' or
1269 obj['objectClass'][1] != 'container'):
1270 self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
1272 if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
1273 self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
1277 def err_deleted_deleted_objects(self, obj):
1278 nmsg = ldb.Message()
1279 nmsg.dn = dn = obj.dn
1281 if "description" not in obj:
1282 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1283 if "showInAdvancedViewOnly" not in obj:
1284 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1285 if "objectCategory" not in obj:
1286 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1287 if "isCriticalSystemObject" not in obj:
1288 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1289 if "isRecycled" in obj:
1290 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1292 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1293 nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
1294 nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
1296 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1297 % (dn), 'fix_deleted_deleted_objects'):
1298 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1301 if self.do_modify(nmsg, ["relax:0"],
1302 "Failed to fix Deleted Objects container %s" % dn):
1303 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1306 def is_fsmo_role(self, dn):
1307 if dn == self.samdb.domain_dn:
1309 if dn == self.infrastructure_dn:
1311 if dn == self.naming_dn:
1313 if dn == self.schema_dn:
1315 if dn == self.rid_dn:
1320 def calculate_instancetype(self, dn):
1322 nc_root = self.samdb.get_nc_root(dn)
1324 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1326 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1327 except ldb.LdbError, (enum, estr):
1328 if enum != ldb.ERR_NO_SUCH_OBJECT:
1331 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1333 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1334 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1338 def get_wellknown_sd(self, dn):
1339 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1341 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1342 return ndr_unpack(security.descriptor,
1343 descriptor_fn(domain_sid,
1344 name_map=self.name_map))
1348 def check_object(self, dn, attrs=['*']):
1349 '''check one object'''
1351 self.report("Checking object %s" % dn)
1353 # If we modify the pass-by-reference attrs variable, then we get a
1354 # replPropertyMetadata for every object that we check.
1356 if "dn" in map(str.lower, attrs):
1357 attrs.append("name")
1358 if "distinguishedname" in map(str.lower, attrs):
1359 attrs.append("name")
1360 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1361 attrs.append("name")
1362 if 'name' in map(str.lower, attrs):
1363 attrs.append(dn.get_rdn_name())
1364 attrs.append("isDeleted")
1365 attrs.append("systemFlags")
1367 attrs.append("replPropertyMetaData")
1371 sd_flags |= security.SECINFO_OWNER
1372 sd_flags |= security.SECINFO_GROUP
1373 sd_flags |= security.SECINFO_DACL
1374 sd_flags |= security.SECINFO_SACL
1376 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1381 "sd_flags:1:%d" % sd_flags,
1384 except ldb.LdbError, (enum, estr):
1385 if enum == ldb.ERR_NO_SUCH_OBJECT:
1386 if self.in_transaction:
1387 self.report("ERROR: Object %s disappeared during check" % dn)
1392 self.report("ERROR: Object %s failed to load during check" % dn)
1396 set_attrs_from_md = set()
1397 set_attrs_seen = set()
1398 got_repl_property_meta_data = False
1399 got_objectclass = False
1401 nc_dn = self.samdb.get_nc_root(obj.dn)
1403 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1404 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1406 # We have no deleted objects DN for schema, and we check for this above for the other
1408 deleted_objects_dn = None
1411 object_rdn_attr = None
1412 object_rdn_val = None
1417 for attrname in obj:
1418 if attrname == 'dn':
1421 if str(attrname).lower() == 'objectclass':
1422 got_objectclass = True
1424 if str(attrname).lower() == "name":
1425 if len(obj[attrname]) != 1:
1427 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1428 (len(obj[attrname]), attrname, str(obj.dn)))
1430 name_val = obj[attrname][0]
1432 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1433 object_rdn_attr = attrname
1434 if len(obj[attrname]) != 1:
1436 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1437 (len(obj[attrname]), attrname, str(obj.dn)))
1439 object_rdn_val = obj[attrname][0]
1441 if str(attrname).lower() == 'isdeleted':
1442 if obj[attrname][0] != "FALSE":
1445 if str(attrname).lower() == 'systemflags':
1446 systemFlags = int(obj[attrname][0])
1448 if str(attrname).lower() == 'replpropertymetadata':
1449 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1451 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1452 # We don't continue, as we may also have other fixes for this attribute
1453 # based on what other attributes we see.
1456 (set_attrs_from_md, list_attid_from_md, wrong_attids) \
1457 = self.process_metadata(dn, obj[attrname])
1460 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1463 if len(set_attrs_from_md) < len(list_attid_from_md) \
1464 or len(wrong_attids) > 0 \
1465 or sorted(list_attid_from_md) != list_attid_from_md:
1467 self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
1470 # Here we check that the first attid is 0
1471 # (objectClass) and that the last on is the RDN
1473 if list_attid_from_md[0] != 0:
1475 self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
1476 (attrname, str(dn)))
1478 got_repl_property_meta_data = True
1481 if str(attrname).lower() == 'ntsecuritydescriptor':
1482 (sd, sd_broken) = self.process_sd(dn, obj)
1483 if sd_broken is not None:
1484 self.err_wrong_sd(dn, sd, sd_broken)
1488 if sd.owner_sid is None or sd.group_sid is None:
1489 self.err_missing_sd_owner(dn, sd)
1493 if self.reset_well_known_acls:
1495 well_known_sd = self.get_wellknown_sd(dn)
1499 current_sd = ndr_unpack(security.descriptor,
1500 str(obj[attrname][0]))
1502 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1504 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1509 if str(attrname).lower() == 'objectclass':
1510 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
1511 # Do not consider the attribute incorrect if:
1512 # - The sorted (alphabetically) list is the same, inclding case
1513 # - The first and last elements are the same
1515 # This avoids triggering an error due to
1516 # non-determinism in the sort routine in (at least)
1517 # 4.3 and earlier, and the fact that any AUX classes
1518 # in these attributes are also not sorted when
1519 # imported from Windows (they are just in the reverse
1520 # order of last set)
1521 if sorted(normalised) != sorted(obj[attrname]) \
1522 or normalised[0] != obj[attrname][0] \
1523 or normalised[-1] != obj[attrname][-1]:
1524 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1528 if str(attrname).lower() == 'userparameters':
1529 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1531 self.err_short_userParameters(obj, attrname, obj[attrname])
1534 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1535 # This is the correct, normal prefix
1538 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1539 # this is the typical prefix from a windows migration
1541 self.err_base64_userParameters(obj, attrname, obj[attrname])
1544 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':
1545 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1547 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1550 elif len(obj[attrname][0]) % 2 != 0:
1551 # This is a value that isn't even in length
1553 self.err_odd_userParameters(obj, attrname, obj[attrname])
1556 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':
1557 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1559 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1562 if attrname.lower() == 'attributeid' or attrname.lower() == 'governsid':
1563 if obj[attrname][0] in self.attribute_or_class_ids:
1565 self.report('Error: %s %s on %s already exists as an attributeId or governsId'
1566 % (attrname, obj.dn, obj[attrname][0]))
1568 self.attribute_or_class_ids.add(obj[attrname][0])
1570 # check for empty attributes
1571 for val in obj[attrname]:
1573 self.err_empty_attribute(dn, attrname)
1577 # get the syntax oid for the attribute, so we can can have
1578 # special handling for some specific attribute types
1580 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1581 except Exception, msg:
1582 self.err_unknown_attribute(obj, attrname)
1586 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1587 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1588 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1589 and not self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)):
1590 set_attrs_seen.add(str(attrname).lower())
1592 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1593 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1594 # it's some form of DN, do specialised checking on those
1595 error_count += self.check_dn(obj, attrname, syntax_oid)
1598 # check for incorrectly normalised attributes
1599 for val in obj[attrname]:
1600 values.add(str(val))
1602 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
1603 if len(normalised) != 1 or normalised[0] != val:
1604 self.err_normalise_mismatch(dn, attrname, obj[attrname])
1608 if len(obj[attrname]) != len(values):
1609 self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
1613 if str(attrname).lower() == "instancetype":
1614 calculated_instancetype = self.calculate_instancetype(dn)
1615 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
1617 self.err_wrong_instancetype(obj, calculated_instancetype)
1619 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
1621 self.err_missing_objectclass(dn)
1623 if ("*" in attrs or "name" in map(str.lower, attrs)):
1624 if name_val is None:
1626 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
1627 if object_rdn_attr is None:
1629 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
1631 if name_val is not None:
1634 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
1635 parent_dn = deleted_objects_dn
1636 if parent_dn is None:
1637 parent_dn = obj.dn.parent()
1638 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
1639 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
1641 if obj.dn == deleted_objects_dn:
1642 expected_dn = obj.dn
1644 if expected_dn != obj.dn:
1646 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
1647 elif obj.dn.get_rdn_value() != object_rdn_val:
1649 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
1652 if got_repl_property_meta_data:
1653 if obj.dn == deleted_objects_dn:
1654 isDeletedAttId = 131120
1655 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
1657 expectedTimeDo = 2650466015990000000
1658 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
1659 if originating != expectedTimeDo:
1660 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
1661 nmsg = ldb.Message()
1663 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1665 self.samdb.modify(nmsg, controls=["provision:0"])
1668 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
1670 for att in set_attrs_seen.difference(set_attrs_from_md):
1672 self.report("On object %s" % dn)
1675 self.report("ERROR: Attribute %s not present in replication metadata" % att)
1676 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
1677 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
1679 self.fix_metadata(dn, att)
1681 if self.is_fsmo_role(dn):
1682 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
1683 self.err_no_fsmoRoleOwner(obj)
1687 if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
1688 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
1689 controls=["show_recycled:1", "show_deleted:1"])
1690 except ldb.LdbError, (enum, estr):
1691 if enum == ldb.ERR_NO_SUCH_OBJECT:
1692 self.err_missing_parent(obj)
1697 if dn in self.deleted_objects_containers and '*' in attrs:
1698 if self.is_deleted_deleted_objects(obj):
1699 self.err_deleted_deleted_objects(obj)
1704 ################################################################
1705 # check special @ROOTDSE attributes
1706 def check_rootdse(self):
1707 '''check the @ROOTDSE special object'''
1708 dn = ldb.Dn(self.samdb, '@ROOTDSE')
1710 self.report("Checking object %s" % dn)
1711 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
1713 self.report("Object %s disappeared during check" % dn)
1718 # check that the dsServiceName is in GUID form
1719 if not 'dsServiceName' in obj:
1720 self.report('ERROR: dsServiceName missing in @ROOTDSE')
1721 return error_count+1
1723 if not obj['dsServiceName'][0].startswith('<GUID='):
1724 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
1726 if not self.confirm('Change dsServiceName to GUID form?'):
1728 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
1729 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
1730 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
1733 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
1734 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
1735 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
1736 self.report("Changed dsServiceName to GUID form")
1740 ###############################################
1741 # re-index the database
1742 def reindex_database(self):
1743 '''re-index the whole database'''
1745 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
1746 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
1747 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
1748 return self.do_modify(m, [], 're-indexed database', validate=False)
1750 ###############################################
1752 def reset_modules(self):
1753 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
1755 m.dn = ldb.Dn(self.samdb, "@MODULES")
1756 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
1757 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)