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()
146 self.dn_set.add(str(object.dn))
147 error_count += self.check_object(object.dn, attrs=attrs)
150 error_count += self.check_rootdse()
152 if error_count != 0 and not self.fix:
153 self.report("Please use --fix to fix these errors")
155 self.report('Checked %u objects (%u errors)' % (len(res), error_count))
159 def check_deleted_objects_containers(self):
160 """This function only fixes conflicts on the Deleted Objects
161 containers, not the attributes"""
163 for nc in self.ncs_lacking_deleted_containers:
164 if nc == self.schema_dn:
167 self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
168 if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
171 dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
176 # If something already exists here, add a conflict
177 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
178 controls=["show_deleted:1", "extended_dn:1:1",
179 "show_recycled:1", "reveal_internals:0"])
181 guid = res[0].dn.get_extended_component("GUID")
182 conflict_dn = ldb.Dn(self.samdb,
183 "CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
184 conflict_dn.add_base(nc)
186 except ldb.LdbError, (enum, estr):
187 if enum == ldb.ERR_NO_SUCH_OBJECT:
190 self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
193 if conflict_dn is not None:
195 self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
196 except ldb.LdbError, (enum, estr):
197 self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
200 # Refresh wellKnownObjects links
201 res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
202 attrs=['wellKnownObjects'],
203 controls=["show_deleted:1", "extended_dn:0",
204 "show_recycled:1", "reveal_internals:0"])
206 self.report("wellKnownObjects was not found for NC %s" % nc)
209 # Prevent duplicate deleted objects containers just in case
210 wko = res[0]["wellKnownObjects"]
212 proposed_objectguid = None
214 dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
215 if self.is_deleted_objects_dn(dsdb_dn):
216 self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
217 # We really want to put this back in the same spot
218 # as the original one, so that on replication we
219 # merge, rather than conflict.
220 proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
223 if proposed_objectguid is not None:
224 guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
226 wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
227 listwko.append('%s:%s' % (wko_prefix, dn))
230 # Insert a brand new Deleted Objects container
231 self.samdb.add_ldif("""dn: %s
233 objectClass: container
234 description: Container for deleted objects
236 isCriticalSystemObject: TRUE
237 showInAdvancedViewOnly: TRUE
238 systemFlags: -1946157056%s""" % (dn, guid_suffix),
239 controls=["relax:0", "provision:0"])
241 delta = ldb.Message()
242 delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
243 delta["wellKnownObjects"] = ldb.MessageElement(listwko,
244 ldb.FLAG_MOD_REPLACE,
247 # Insert the link to the brand new container
248 if self.do_modify(delta, ["relax:0"],
249 "NC %s lacks Deleted Objects WKGUID" % nc,
251 self.report("Added %s well known guid link" % dn)
253 self.deleted_objects_containers.append(dn)
257 def report(self, msg):
258 '''print a message unless quiet is set'''
262 def confirm(self, msg, allow_all=False, forced=False):
263 '''confirm a change'''
270 return common.confirm(msg, forced=forced, allow_all=allow_all)
272 ################################################################
273 # a local confirm function with support for 'all'
274 def confirm_all(self, msg, all_attr):
275 '''confirm a change with support for "all" '''
280 if getattr(self, all_attr) == 'NONE':
282 if getattr(self, all_attr) == 'ALL':
286 c = common.confirm(msg, forced=forced, allow_all=True)
288 setattr(self, all_attr, 'ALL')
291 setattr(self, all_attr, 'NONE')
295 def do_delete(self, dn, controls, msg):
296 '''delete dn with optional verbose output'''
298 self.report("delete DN %s" % dn)
300 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
301 self.samdb.delete(dn, controls=controls)
302 except Exception, err:
303 self.report("%s : %s" % (msg, err))
307 def do_modify(self, m, controls, msg, validate=True):
308 '''perform a modify with optional verbose output'''
310 self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
312 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
313 self.samdb.modify(m, controls=controls, validate=validate)
314 except Exception, err:
315 self.report("%s : %s" % (msg, err))
319 def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
320 '''perform a modify with optional verbose output'''
322 self.report("""dn: %s
326 newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
328 to_dn = to_rdn + to_base
329 controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
330 self.samdb.rename(from_dn, to_dn, controls=controls)
331 except Exception, err:
332 self.report("%s : %s" % (msg, err))
336 def err_empty_attribute(self, dn, attrname):
337 '''fix empty attributes'''
338 self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
339 if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
340 self.report("Not fixing empty attribute %s" % attrname)
345 m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
346 if self.do_modify(m, ["relax:0", "show_recycled:1"],
347 "Failed to remove empty attribute %s" % attrname, validate=False):
348 self.report("Removed empty attribute %s" % attrname)
350 def err_normalise_mismatch(self, dn, attrname, values):
351 '''fix attribute normalisation errors'''
352 self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
355 normalised = self.samdb.dsdb_normalise_attributes(
356 self.samdb_schema, attrname, [val])
357 if len(normalised) != 1:
358 self.report("Unable to normalise value '%s'" % val)
359 mod_list.append((val, ''))
360 elif (normalised[0] != val):
361 self.report("value '%s' should be '%s'" % (val, normalised[0]))
362 mod_list.append((val, normalised[0]))
363 if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
364 self.report("Not fixing attribute %s" % attrname)
369 for i in range(0, len(mod_list)):
370 (val, nval) = mod_list[i]
371 m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
373 m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
376 if self.do_modify(m, ["relax:0", "show_recycled:1"],
377 "Failed to normalise attribute %s" % attrname,
379 self.report("Normalised attribute %s" % attrname)
381 def err_normalise_mismatch_replace(self, dn, attrname, values):
382 '''fix attribute normalisation errors'''
383 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
384 self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
385 self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
386 if list(normalised) == values:
388 if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
389 self.report("Not fixing attribute '%s'" % attrname)
394 m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
396 if self.do_modify(m, ["relax:0", "show_recycled:1"],
397 "Failed to normalise attribute %s" % attrname,
399 self.report("Normalised attribute %s" % attrname)
401 def err_duplicate_values(self, dn, attrname, dup_values, values):
402 '''fix attribute normalisation errors'''
403 self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
404 self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
405 if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
406 self.report("Not fixing attribute '%s'" % attrname)
411 m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
413 if self.do_modify(m, ["relax:0", "show_recycled:1"],
414 "Failed to remove duplicate value on attribute %s" % attrname,
416 self.report("Removed duplicate value on attribute %s" % attrname)
418 def is_deleted_objects_dn(self, dsdb_dn):
419 '''see if a dsdb_Dn is the special Deleted Objects DN'''
420 return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
422 def err_missing_objectclass(self, dn):
423 """handle object without objectclass"""
424 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)))
425 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'):
426 self.report("Not deleting object with missing objectclass '%s'" % dn)
428 if self.do_delete(dn, ["relax:0"],
429 "Failed to remove DN %s" % dn):
430 self.report("Removed DN %s" % dn)
432 def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn):
433 """handle a DN pointing to a deleted object"""
434 self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
435 self.report("Target GUID points at deleted DN %s" % correct_dn)
436 if not self.confirm_all('Remove DN link?', 'remove_all_deleted_DN_links'):
437 self.report("Not removing")
441 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
442 if self.do_modify(m, ["show_recycled:1", "local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK],
443 "Failed to remove deleted DN attribute %s" % attrname):
444 self.report("Removed deleted DN on attribute %s" % attrname)
446 def err_missing_dn_GUID(self, dn, attrname, val, dsdb_dn):
447 """handle a missing target DN (both GUID and DN string form are missing)"""
448 # check if its a backlink
449 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
450 if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
451 self.report("Not removing dangling forward link")
453 self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn)
455 def err_incorrect_dn_GUID(self, dn, attrname, val, dsdb_dn, errstr):
456 """handle a missing GUID extended DN component"""
457 self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
458 controls=["extended_dn:1:1", "show_recycled:1"]
460 res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
461 attrs=[], controls=controls)
462 except ldb.LdbError, (enum, estr):
463 self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
464 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
467 self.report("unable to find object for DN %s" % dsdb_dn.dn)
468 self.err_missing_dn_GUID(dn, attrname, val, dsdb_dn)
470 dsdb_dn.dn = res[0].dn
472 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
473 self.report("Not fixing %s" % errstr)
477 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
478 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
480 if self.do_modify(m, ["show_recycled:1"],
481 "Failed to fix %s on attribute %s" % (errstr, attrname)):
482 self.report("Fixed %s on attribute %s" % (errstr, attrname))
484 def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
485 """handle an incorrect binary DN component"""
486 self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
487 controls=["extended_dn:1:1", "show_recycled:1"]
489 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
490 self.report("Not fixing %s" % errstr)
494 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
495 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
497 if self.do_modify(m, ["show_recycled:1"],
498 "Failed to fix %s on attribute %s" % (errstr, attrname)):
499 self.report("Fixed %s on attribute %s" % (errstr, attrname))
501 def err_dn_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, errstr):
502 """handle a DN string being incorrect"""
503 self.report("ERROR: incorrect DN string component for %s in object %s - %s" % (attrname, dn, val))
504 dsdb_dn.dn = correct_dn
506 if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_target_mismatch'):
507 self.report("Not fixing %s" % errstr)
511 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
512 m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
513 if self.do_modify(m, ["show_recycled:1"],
514 "Failed to fix incorrect DN string on attribute %s" % attrname):
515 self.report("Fixed incorrect DN string on attribute %s" % (attrname))
517 def err_unknown_attribute(self, obj, attrname):
518 '''handle an unknown attribute error'''
519 self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
520 if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
521 self.report("Not removing %s" % attrname)
525 m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
526 if self.do_modify(m, ["relax:0", "show_recycled:1"],
527 "Failed to remove unknown attribute %s" % attrname):
528 self.report("Removed unknown attribute %s" % (attrname))
530 def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
531 '''handle a missing backlink value'''
532 self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
533 if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
534 self.report("Not fixing missing backlink %s" % backlink_name)
538 m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
539 m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, attrname)
540 if self.do_modify(m, ["show_recycled:1"],
541 "Failed to fix missing backlink %s" % backlink_name):
542 self.report("Fixed missing backlink %s" % (backlink_name))
544 def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
545 '''handle a incorrect RMD_FLAGS value'''
546 rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
547 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()))
548 if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
549 self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
553 m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
554 if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
555 "Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
556 self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
558 def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
559 '''handle a orphaned backlink value'''
560 self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
561 if not self.confirm_all('Remove orphaned backlink %s' % link_name, 'fix_all_orphaned_backlinks'):
562 self.report("Not removing orphaned backlink %s" % link_name)
566 m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
567 if self.do_modify(m, ["show_recycled:1", "relax:0"],
568 "Failed to fix orphaned backlink %s" % link_name):
569 self.report("Fixed orphaned backlink %s" % (link_name))
571 def err_no_fsmoRoleOwner(self, obj):
572 '''handle a missing fSMORoleOwner'''
573 self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
574 res = self.samdb.search("",
575 scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
577 serviceName = res[0]["dsServiceName"][0]
578 if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
579 self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
583 m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
584 if self.do_modify(m, [],
585 "Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
586 self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
588 def err_missing_parent(self, obj):
589 '''handle a missing parent'''
590 self.report("ERROR: parent object not found for %s" % (obj.dn))
591 if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
592 self.report('Not moving object %s into LostAndFound' % (obj.dn))
595 keep_transaction = True
596 self.samdb.transaction_start()
598 nc_root = self.samdb.get_nc_root(obj.dn);
599 lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
600 new_dn = ldb.Dn(self.samdb, str(obj.dn))
601 new_dn.remove_base_components(len(new_dn) - 1)
602 if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
603 "Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
604 self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
608 m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
610 if self.do_modify(m, [],
611 "Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
612 self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
613 keep_transaction = True
615 self.samdb.transaction_cancel()
619 self.samdb.transaction_commit()
621 self.samdb.transaction_cancel()
623 def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
624 '''handle a wrong dn'''
626 new_rdn = ldb.Dn(self.samdb, str(new_dn))
627 new_rdn.remove_base_components(len(new_rdn) - 1)
628 new_parent = new_dn.parent()
631 if rdn_val != name_val:
632 attributes += "%s=%r " % (rdn_attr, rdn_val)
633 attributes += "name=%r" % (name_val)
635 self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
636 if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
637 self.report("Not renaming %s to %s" % (obj.dn, new_dn))
640 if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
641 "Failed to rename object %s into %s" % (obj.dn, new_dn)):
642 self.report("Renamed %s into %s" % (obj.dn, new_dn))
644 def err_wrong_instancetype(self, obj, calculated_instancetype):
645 '''handle a wrong instanceType'''
646 self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
647 if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
648 self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
653 m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
654 if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
655 "Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
656 self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
658 def err_short_userParameters(self, obj, attrname, value):
659 # This is a truncated userParameters due to a pre 4.1 replication bug
660 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)))
662 def err_base64_userParameters(self, obj, attrname, value):
663 '''handle a wrong userParameters'''
664 self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
665 if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
666 self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
671 m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
672 if self.do_modify(m, [],
673 "Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
674 self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
676 def err_utf8_userParameters(self, obj, attrname, value):
677 '''handle a wrong userParameters'''
678 self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
679 if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
680 self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
685 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
686 ldb.FLAG_MOD_REPLACE, 'userParameters')
687 if self.do_modify(m, [],
688 "Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
689 self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
691 def err_doubled_userParameters(self, obj, attrname, value):
692 '''handle a wrong userParameters'''
693 self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
694 if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
695 self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
700 m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
701 ldb.FLAG_MOD_REPLACE, 'userParameters')
702 if self.do_modify(m, [],
703 "Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
704 self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
706 def err_odd_userParameters(self, obj, attrname):
707 # This is a truncated userParameters due to a pre 4.1 replication bug
708 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)))
710 def find_revealed_link(self, dn, attrname, guid):
711 '''return a revealed link in an object'''
712 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
713 controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
714 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
715 for val in res[0][attrname]:
716 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
717 guid2 = dsdb_dn.dn.get_extended_component("GUID")
722 def check_dn(self, obj, attrname, syntax_oid):
723 '''check a DN attribute for correctness'''
725 for val in obj[attrname]:
726 dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
728 # all DNs should have a GUID component
729 guid = dsdb_dn.dn.get_extended_component("GUID")
732 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn,
736 guidstr = str(misc.GUID(guid))
738 attrs = ['isDeleted']
740 if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
741 fixing_msDS_HasInstantiatedNCs = True
742 attrs.append("instanceType")
744 fixing_msDS_HasInstantiatedNCs = False
746 linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
747 reverse_link_name = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
748 if reverse_link_name is not None:
749 attrs.append(reverse_link_name)
751 # check its the right GUID
753 res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
754 attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1"])
755 except ldb.LdbError, (enum, estr):
757 self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn, "incorrect GUID")
760 if fixing_msDS_HasInstantiatedNCs:
761 dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
762 dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
764 if str(dsdb_dn) != val:
766 self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
769 # now we have two cases - the source object might or might not be deleted
770 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
771 target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
773 # the target DN is not allowed to be deleted, unless the target DN is the
774 # special Deleted Objects container
775 if target_is_deleted and not is_deleted and not self.is_deleted_objects_dn(dsdb_dn):
777 self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn)
780 # check the DN matches in string form
781 if res[0].dn.extended_str() != dsdb_dn.dn.extended_str():
783 self.err_dn_target_mismatch(obj.dn, attrname, val, dsdb_dn,
784 res[0].dn, "incorrect string version of DN")
787 if is_deleted and not target_is_deleted and reverse_link_name is not None:
788 revealed_dn = self.find_revealed_link(obj.dn, attrname, guid)
789 rmd_flags = revealed_dn.dn.get_extended_component("RMD_FLAGS")
790 if rmd_flags is not None and (int(rmd_flags) & 1) == 0:
791 # the RMD_FLAGS for this link should be 1, as the target is deleted
792 self.err_incorrect_rmd_flags(obj, attrname, revealed_dn)
795 # check the reverse_link is correct if there should be one
796 if reverse_link_name is not None:
798 if reverse_link_name in res[0]:
799 for v in res[0][reverse_link_name]:
800 if v == obj.dn.extended_str():
805 self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
807 self.err_missing_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
813 def get_originating_time(self, val, attid):
814 '''Read metadata properties and return the originating time for
817 :return: the originating time or 0 if not found
820 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
823 for o in repl.ctr.array:
825 return o.originating_change_time
829 def process_metadata(self, dn, val):
830 '''Read metadata properties and list attributes in it.
831 raises KeyError if the attid is unknown.'''
836 in_schema_nc = dn.is_child_of(self.schema_dn)
838 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
841 for o in repl.ctr.array:
842 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
843 set_att.add(att.lower())
844 list_attid.append(o.attid)
845 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
846 is_schema_nc=in_schema_nc)
847 if correct_attid != o.attid:
848 wrong_attids.add(o.attid)
850 return (set_att, list_attid, wrong_attids)
853 def fix_metadata(self, dn, attr):
854 '''re-write replPropertyMetaData elements for a single attribute for a
855 object. This is used to fix missing replPropertyMetaData elements'''
856 res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
857 controls = ["search_options:1:2", "show_recycled:1"])
861 nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
862 if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
863 "Failed to fix metadata for attribute %s" % attr):
864 self.report("Fixed metadata for attribute %s" % attr)
866 def ace_get_effective_inherited_type(self, ace):
867 if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
871 if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
873 elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
875 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
877 elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
883 if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
886 return str(ace.object.inherited_type)
888 def lookup_class_schemaIDGUID(self, cls):
889 if cls in self.class_schemaIDGUID:
890 return self.class_schemaIDGUID[cls]
892 flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
893 res = self.samdb.search(base=self.schema_dn,
895 attrs=["schemaIDGUID"])
896 t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
898 self.class_schemaIDGUID[cls] = t
901 def process_sd(self, dn, obj):
902 sd_attr = "nTSecurityDescriptor"
903 sd_val = obj[sd_attr]
905 sd = ndr_unpack(security.descriptor, str(sd_val))
907 is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
909 # we don't fix deleted objects
912 sd_clean = security.descriptor()
913 sd_clean.owner_sid = sd.owner_sid
914 sd_clean.group_sid = sd.group_sid
915 sd_clean.type = sd.type
916 sd_clean.revision = sd.revision
919 last_inherited_type = None
922 if sd.sacl is not None:
924 for i in range(0, len(aces)):
927 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
928 sd_clean.sacl_add(ace)
931 t = self.ace_get_effective_inherited_type(ace)
935 if last_inherited_type is not None:
936 if t != last_inherited_type:
937 # if it inherited from more than
938 # one type it's very likely to be broken
940 # If not the recalculation will calculate
945 last_inherited_type = t
948 if sd.dacl is not None:
950 for i in range(0, len(aces)):
953 if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
954 sd_clean.dacl_add(ace)
957 t = self.ace_get_effective_inherited_type(ace)
961 if last_inherited_type is not None:
962 if t != last_inherited_type:
963 # if it inherited from more than
964 # one type it's very likely to be broken
966 # If not the recalculation will calculate
971 last_inherited_type = t
974 return (sd_clean, sd)
976 if last_inherited_type is None:
982 cls = obj["objectClass"][-1]
987 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
988 attrs=["isDeleted", "objectClass"],
989 controls=["show_recycled:1"])
991 is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
993 # we don't fix deleted objects
995 cls = o["objectClass"][-1]
997 t = self.lookup_class_schemaIDGUID(cls)
999 if t != last_inherited_type:
1001 return (sd_clean, sd)
1006 def err_wrong_sd(self, dn, sd, sd_broken):
1007 '''re-write the SD due to incorrect inherited ACEs'''
1008 sd_attr = "nTSecurityDescriptor"
1009 sd_val = ndr_pack(sd)
1010 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1012 if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
1013 self.report('Not fixing %s on %s\n' % (sd_attr, dn))
1016 nmsg = ldb.Message()
1018 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1019 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1020 "Failed to fix attribute %s" % sd_attr):
1021 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1023 def err_wrong_default_sd(self, dn, sd, sd_old, diff):
1024 '''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
1025 sd_attr = "nTSecurityDescriptor"
1026 sd_val = ndr_pack(sd)
1027 sd_old_val = ndr_pack(sd_old)
1028 sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
1029 if sd.owner_sid is not None:
1030 sd_flags |= security.SECINFO_OWNER
1031 if sd.group_sid is not None:
1032 sd_flags |= security.SECINFO_GROUP
1034 if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
1035 self.report('Not resetting %s on %s\n' % (sd_attr, dn))
1040 m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1041 if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
1042 "Failed to reset attribute %s" % sd_attr):
1043 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1045 def err_missing_sd_owner(self, dn, sd):
1046 '''re-write the SD due to a missing owner or group'''
1047 sd_attr = "nTSecurityDescriptor"
1048 sd_val = ndr_pack(sd)
1049 sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
1051 if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
1052 self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
1055 nmsg = ldb.Message()
1057 nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
1059 # By setting the session_info to admin_session_info and
1060 # setting the security.SECINFO_OWNER | security.SECINFO_GROUP
1061 # flags we cause the descriptor module to set the correct
1062 # owner and group on the SD, replacing the None/NULL values
1063 # for owner_sid and group_sid currently present.
1065 # The admin_session_info matches that used in provision, and
1066 # is the best guess we can make for an existing object that
1067 # hasn't had something specifically set.
1069 # This is important for the dns related naming contexts.
1070 self.samdb.set_session_info(self.admin_session_info)
1071 if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
1072 "Failed to fix metadata for attribute %s" % sd_attr):
1073 self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
1074 self.samdb.set_session_info(self.system_session_info)
1077 def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
1078 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1079 str(repl_meta_data))
1083 # Search for a zero invocationID
1084 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1088 self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
1089 version %d changed at %s is 00000000-0000-0000-0000-000000000000,
1090 but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
1091 % (dn, o.attid, o.version,
1092 time.ctime(samba.nttime2unix(o.originating_change_time)),
1093 self.samdb.get_invocation_id()))
1098 def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
1099 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1100 str(repl_meta_data))
1102 now = samba.unix2nttime(int(time.time()))
1105 # Search for a zero invocationID
1106 if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
1110 seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
1111 o.version = o.version + 1
1112 o.originating_change_time = now
1113 o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
1114 o.originating_usn = seq
1118 replBlob = ndr_pack(repl)
1122 if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
1123 % (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
1124 self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
1127 nmsg = ldb.Message()
1129 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1130 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1131 "local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
1132 "Failed to fix attribute %s" % attr):
1133 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1136 def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
1137 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1138 str(repl_meta_data))
1141 # Search for an invalid attid
1143 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1145 self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
1149 def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
1150 repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
1151 str(repl_meta_data))
1155 remove_attid = set()
1158 in_schema_nc = dn.is_child_of(self.schema_dn)
1161 # Sort the array, except for the last element. This strange
1162 # construction, creating a new list, due to bugs in samba's
1163 # array handling in IDL generated objects.
1164 ctr.array = sorted(ctr.array[:-1], key=lambda o: o.attid) + [ctr.array[-1]]
1165 # Now walk it in reverse, so we see the low (and so incorrect,
1166 # the correct values are above 0x80000000) values first and
1167 # remove the 'second' value we see.
1168 for o in reversed(ctr.array):
1169 print "%s: 0x%08x" % (dn, o.attid)
1170 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1171 if att.lower() in set_att:
1172 self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
1173 if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
1174 % (attr, dn, o.attid, att, hash_att[att].attid),
1175 'fix_replmetadata_duplicate_attid'):
1176 self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
1177 % (o.attid, att, attr, dn))
1180 remove_attid.add(o.attid)
1181 # We want to set the metadata for the most recent
1182 # update to have been applied locally, that is the metadata
1183 # matching the (eg string) value in the attribute
1184 if o.local_usn > hash_att[att].local_usn:
1185 # This is always what we would have sent over DRS,
1186 # because the DRS server will have sent the
1187 # msDS-IntID, but with the values from both
1188 # attribute entries.
1189 hash_att[att].version = o.version
1190 hash_att[att].originating_change_time = o.originating_change_time
1191 hash_att[att].originating_invocation_id = o.originating_invocation_id
1192 hash_att[att].originating_usn = o.originating_usn
1193 hash_att[att].local_usn = o.local_usn
1195 # Do not re-add the value to the set or overwrite the hash value
1199 set_att.add(att.lower())
1201 # Generate a real list we can sort on properly
1202 new_list = [o for o in ctr.array if o.attid not in remove_attid]
1204 if (len(wrong_attids) > 0):
1206 if o.attid in wrong_attids:
1207 att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
1208 correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
1209 self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
1210 if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
1211 % (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
1212 self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
1213 % (o.attid, correct_attid, att, attr, dn))
1216 o.attid = correct_attid
1218 # Sort the array, except for the last element (we changed
1219 # the value so must re-sort)
1220 new_list[:-1] = sorted(new_list[:-1], key=lambda o: o.attid)
1222 # If we did not already need to fix it, then ask about sorting
1224 self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
1225 if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
1226 % (attr, dn), 'fix_replmetadata_unsorted_attid'):
1227 self.report('Not fixing %s on %s\n' % (attr, dn))
1230 # The actual sort done is done at the top of the function
1232 ctr.count = len(new_list)
1233 ctr.array = new_list
1234 replBlob = ndr_pack(repl)
1236 nmsg = ldb.Message()
1238 nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
1239 if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
1240 "local_oid:1.3.6.1.4.1.7165.4.3.14:0",
1241 "local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
1242 "Failed to fix attribute %s" % attr):
1243 self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
1246 def is_deleted_deleted_objects(self, obj):
1248 if "description" not in obj:
1249 self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
1251 if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
1252 self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
1254 if "objectCategory" not in obj:
1255 self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
1257 if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
1258 self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
1260 if "isRecycled" in obj:
1261 self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
1263 if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
1264 self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
1266 if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
1267 obj['objectClass'][0] != 'top' or
1268 obj['objectClass'][1] != 'container'):
1269 self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
1271 if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
1272 self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
1276 def err_deleted_deleted_objects(self, obj):
1277 nmsg = ldb.Message()
1278 nmsg.dn = dn = obj.dn
1280 if "description" not in obj:
1281 nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
1282 if "showInAdvancedViewOnly" not in obj:
1283 nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
1284 if "objectCategory" not in obj:
1285 nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
1286 if "isCriticalSystemObject" not in obj:
1287 nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
1288 if "isRecycled" in obj:
1289 nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
1291 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1292 nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
1293 nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
1295 if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
1296 % (dn), 'fix_deleted_deleted_objects'):
1297 self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
1300 if self.do_modify(nmsg, ["relax:0"],
1301 "Failed to fix Deleted Objects container %s" % dn):
1302 self.report("Fixed Deleted Objects container '%s'\n" % (dn))
1305 def is_fsmo_role(self, dn):
1306 if dn == self.samdb.domain_dn:
1308 if dn == self.infrastructure_dn:
1310 if dn == self.naming_dn:
1312 if dn == self.schema_dn:
1314 if dn == self.rid_dn:
1319 def calculate_instancetype(self, dn):
1321 nc_root = self.samdb.get_nc_root(dn)
1323 instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
1325 self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
1326 except ldb.LdbError, (enum, estr):
1327 if enum != ldb.ERR_NO_SUCH_OBJECT:
1330 instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
1332 if self.write_ncs is not None and str(nc_root) in self.write_ncs:
1333 instancetype |= dsdb.INSTANCE_TYPE_WRITE
1337 def get_wellknown_sd(self, dn):
1338 for [sd_dn, descriptor_fn] in self.wellknown_sds:
1340 domain_sid = security.dom_sid(self.samdb.get_domain_sid())
1341 return ndr_unpack(security.descriptor,
1342 descriptor_fn(domain_sid,
1343 name_map=self.name_map))
1347 def check_object(self, dn, attrs=['*']):
1348 '''check one object'''
1350 self.report("Checking object %s" % dn)
1352 # If we modify the pass-by-reference attrs variable, then we get a
1353 # replPropertyMetadata for every object that we check.
1355 if "dn" in map(str.lower, attrs):
1356 attrs.append("name")
1357 if "distinguishedname" in map(str.lower, attrs):
1358 attrs.append("name")
1359 if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
1360 attrs.append("name")
1361 if 'name' in map(str.lower, attrs):
1362 attrs.append(dn.get_rdn_name())
1363 attrs.append("isDeleted")
1364 attrs.append("systemFlags")
1366 attrs.append("replPropertyMetaData")
1370 sd_flags |= security.SECINFO_OWNER
1371 sd_flags |= security.SECINFO_GROUP
1372 sd_flags |= security.SECINFO_DACL
1373 sd_flags |= security.SECINFO_SACL
1375 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
1380 "sd_flags:1:%d" % sd_flags,
1383 except ldb.LdbError, (enum, estr):
1384 if enum == ldb.ERR_NO_SUCH_OBJECT:
1385 if self.in_transaction:
1386 self.report("ERROR: Object %s disappeared during check" % dn)
1391 self.report("ERROR: Object %s failed to load during check" % dn)
1395 set_attrs_from_md = set()
1396 set_attrs_seen = set()
1397 got_repl_property_meta_data = False
1398 got_objectclass = False
1400 nc_dn = self.samdb.get_nc_root(obj.dn)
1402 deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
1403 samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
1405 # We have no deleted objects DN for schema, and we check for this above for the other
1407 deleted_objects_dn = None
1410 object_rdn_attr = None
1411 object_rdn_val = None
1416 for attrname in obj:
1417 if attrname == 'dn':
1420 if str(attrname).lower() == 'objectclass':
1421 got_objectclass = True
1423 if str(attrname).lower() == "name":
1424 if len(obj[attrname]) != 1:
1426 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1427 (len(obj[attrname]), attrname, str(obj.dn)))
1429 name_val = obj[attrname][0]
1431 if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
1432 object_rdn_attr = attrname
1433 if len(obj[attrname]) != 1:
1435 self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
1436 (len(obj[attrname]), attrname, str(obj.dn)))
1438 object_rdn_val = obj[attrname][0]
1440 if str(attrname).lower() == 'isdeleted':
1441 if obj[attrname][0] != "FALSE":
1444 if str(attrname).lower() == 'systemflags':
1445 systemFlags = int(obj[attrname][0])
1447 if str(attrname).lower() == 'replpropertymetadata':
1448 if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
1450 self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
1451 # We don't continue, as we may also have other fixes for this attribute
1452 # based on what other attributes we see.
1455 (set_attrs_from_md, list_attid_from_md, wrong_attids) \
1456 = self.process_metadata(dn, obj[attrname])
1459 self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
1462 if len(set_attrs_from_md) < len(list_attid_from_md) \
1463 or len(wrong_attids) > 0 \
1464 or sorted(list_attid_from_md[:-1]) != list_attid_from_md[:-1]:
1466 self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
1469 # Here we check that the first attid is 0
1470 # (objectClass) and that the last on is the RDN
1472 rdn_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(dn.get_rdn_name())
1473 if list_attid_from_md[-1] != rdn_attid:
1475 self.report("ERROR: Not fixing incorrect final attributeID in '%s' on '%s', it should match the RDN %s" %
1476 (attrname, str(dn), dn.get_rdn_name()))
1478 if list_attid_from_md[0] != 0:
1480 self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
1481 (attrname, str(dn)))
1483 got_repl_property_meta_data = True
1486 if str(attrname).lower() == 'ntsecuritydescriptor':
1487 (sd, sd_broken) = self.process_sd(dn, obj)
1488 if sd_broken is not None:
1489 self.err_wrong_sd(dn, sd, sd_broken)
1493 if sd.owner_sid is None or sd.group_sid is None:
1494 self.err_missing_sd_owner(dn, sd)
1498 if self.reset_well_known_acls:
1500 well_known_sd = self.get_wellknown_sd(dn)
1504 current_sd = ndr_unpack(security.descriptor,
1505 str(obj[attrname][0]))
1507 diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
1509 self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
1514 if str(attrname).lower() == 'objectclass':
1515 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
1516 # Do not consider the attribute incorrect if:
1517 # - The sorted (alphabetically) list is the same, inclding case
1518 # - The first and last elements are the same
1520 # This avoids triggering an error due to
1521 # non-determinism in the sort routine in (at least)
1522 # 4.3 and earlier, and the fact that any AUX classes
1523 # in these attributes are also not sorted when
1524 # imported from Windows (they are just in the reverse
1525 # order of last set)
1526 if sorted(normalised) != sorted(obj[attrname]) \
1527 or normalised[0] != obj[attrname][0] \
1528 or normalised[-1] != obj[attrname][-1]:
1529 self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
1533 if str(attrname).lower() == 'userparameters':
1534 if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
1536 self.err_short_userParameters(obj, attrname, obj[attrname])
1539 elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
1540 # This is the correct, normal prefix
1543 elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
1544 # this is the typical prefix from a windows migration
1546 self.err_base64_userParameters(obj, attrname, obj[attrname])
1549 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':
1550 # This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
1552 self.err_utf8_userParameters(obj, attrname, obj[attrname])
1555 elif len(obj[attrname][0]) % 2 != 0:
1556 # This is a value that isn't even in length
1558 self.err_odd_userParameters(obj, attrname, obj[attrname])
1561 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':
1562 # This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
1564 self.err_doubled_userParameters(obj, attrname, obj[attrname])
1567 # check for empty attributes
1568 for val in obj[attrname]:
1570 self.err_empty_attribute(dn, attrname)
1574 # get the syntax oid for the attribute, so we can can have
1575 # special handling for some specific attribute types
1577 syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
1578 except Exception, msg:
1579 self.err_unknown_attribute(obj, attrname)
1583 flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
1584 if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
1585 and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
1586 and not self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)):
1587 set_attrs_seen.add(str(attrname).lower())
1589 if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
1590 dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
1591 # it's some form of DN, do specialised checking on those
1592 error_count += self.check_dn(obj, attrname, syntax_oid)
1595 # check for incorrectly normalised attributes
1596 for val in obj[attrname]:
1597 values.add(str(val))
1599 normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
1600 if len(normalised) != 1 or normalised[0] != val:
1601 self.err_normalise_mismatch(dn, attrname, obj[attrname])
1605 if len(obj[attrname]) != len(values):
1606 self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
1610 if str(attrname).lower() == "instancetype":
1611 calculated_instancetype = self.calculate_instancetype(dn)
1612 if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
1614 self.err_wrong_instancetype(obj, calculated_instancetype)
1616 if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
1618 self.err_missing_objectclass(dn)
1620 if ("*" in attrs or "name" in map(str.lower, attrs)):
1621 if name_val is None:
1623 self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
1624 if object_rdn_attr is None:
1626 self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
1628 if name_val is not None:
1631 if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
1632 parent_dn = deleted_objects_dn
1633 if parent_dn is None:
1634 parent_dn = obj.dn.parent()
1635 expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
1636 expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
1638 if obj.dn == deleted_objects_dn:
1639 expected_dn = obj.dn
1641 if expected_dn != obj.dn:
1643 self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
1644 elif obj.dn.get_rdn_value() != object_rdn_val:
1646 self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
1649 if got_repl_property_meta_data:
1650 if obj.dn == deleted_objects_dn:
1651 isDeletedAttId = 131120
1652 # It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
1654 expectedTimeDo = 2650466015990000000
1655 originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
1656 if originating != expectedTimeDo:
1657 if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
1658 nmsg = ldb.Message()
1660 nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
1662 self.samdb.modify(nmsg, controls=["provision:0"])
1665 self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
1667 for att in set_attrs_seen.difference(set_attrs_from_md):
1669 self.report("On object %s" % dn)
1672 self.report("ERROR: Attribute %s not present in replication metadata" % att)
1673 if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
1674 self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
1676 self.fix_metadata(dn, att)
1678 if self.is_fsmo_role(dn):
1679 if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
1680 self.err_no_fsmoRoleOwner(obj)
1684 if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
1685 res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
1686 controls=["show_recycled:1", "show_deleted:1"])
1687 except ldb.LdbError, (enum, estr):
1688 if enum == ldb.ERR_NO_SUCH_OBJECT:
1689 self.err_missing_parent(obj)
1694 if dn in self.deleted_objects_containers and '*' in attrs:
1695 if self.is_deleted_deleted_objects(obj):
1696 self.err_deleted_deleted_objects(obj)
1701 ################################################################
1702 # check special @ROOTDSE attributes
1703 def check_rootdse(self):
1704 '''check the @ROOTDSE special object'''
1705 dn = ldb.Dn(self.samdb, '@ROOTDSE')
1707 self.report("Checking object %s" % dn)
1708 res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
1710 self.report("Object %s disappeared during check" % dn)
1715 # check that the dsServiceName is in GUID form
1716 if not 'dsServiceName' in obj:
1717 self.report('ERROR: dsServiceName missing in @ROOTDSE')
1718 return error_count+1
1720 if not obj['dsServiceName'][0].startswith('<GUID='):
1721 self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
1723 if not self.confirm('Change dsServiceName to GUID form?'):
1725 res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
1726 scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
1727 guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
1730 m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
1731 ldb.FLAG_MOD_REPLACE, 'dsServiceName')
1732 if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
1733 self.report("Changed dsServiceName to GUID form")
1737 ###############################################
1738 # re-index the database
1739 def reindex_database(self):
1740 '''re-index the whole database'''
1742 m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
1743 m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
1744 m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
1745 return self.do_modify(m, [], 're-indexed database', validate=False)
1747 ###############################################
1749 def reset_modules(self):
1750 '''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
1752 m.dn = ldb.Dn(self.samdb, "@MODULES")
1753 m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
1754 return self.do_modify(m, [], 'reset @MODULES on database', validate=False)