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samba-mirror/python/samba/dbchecker.py
Andrew Bartlett 04eb95a46b dbcheck: Correct message for orphaned backlinks 
The backlink name is in attrname, not in link_name

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12297
2016-11-22 02:10:16 +01:00

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# Samba4 AD database checker
#
# Copyright (C) Andrew Tridgell 2011
# Copyright (C) Matthieu Patou <mat@matws.net> 2011
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import ldb
import samba
import time
from base64 import b64decode
from samba import dsdb
from samba import common
from samba.dcerpc import misc
from samba.dcerpc import drsuapi
from samba.ndr import ndr_unpack, ndr_pack
from samba.dcerpc import drsblobs
from samba.common import dsdb_Dn
from samba.dcerpc import security
from samba.descriptor import get_wellknown_sds, get_diff_sds
from samba.auth import system_session, admin_session
from samba.netcmd import CommandError
from samba.netcmd.fsmo import get_fsmo_roleowner
class dbcheck(object):
"""check a SAM database for errors"""
def __init__(self, samdb, samdb_schema=None, verbose=False, fix=False,
yes=False, quiet=False, in_transaction=False,
reset_well_known_acls=False):
self.samdb = samdb
self.dict_oid_name = None
self.samdb_schema = (samdb_schema or samdb)
self.verbose = verbose
self.fix = fix
self.yes = yes
self.quiet = quiet
self.remove_all_unknown_attributes = False
self.remove_all_empty_attributes = False
self.fix_all_normalisation = False
self.fix_all_duplicates = False
self.fix_all_DN_GUIDs = False
self.fix_all_binary_dn = False
self.remove_implausible_deleted_DN_links = False
self.remove_plausible_deleted_DN_links = False
self.fix_all_string_dn_component_mismatch = False
self.fix_all_GUID_dn_component_mismatch = False
self.fix_all_SID_dn_component_mismatch = False
self.fix_all_metadata = False
self.fix_time_metadata = False
self.fix_undead_linked_attributes = False
self.fix_all_missing_backlinks = False
self.fix_all_orphaned_backlinks = False
self.fix_rmd_flags = False
self.fix_ntsecuritydescriptor = False
self.fix_ntsecuritydescriptor_owner_group = False
self.seize_fsmo_role = False
self.move_to_lost_and_found = False
self.fix_instancetype = False
self.fix_replmetadata_zero_invocationid = False
self.fix_replmetadata_duplicate_attid = False
self.fix_replmetadata_wrong_attid = False
self.fix_replmetadata_unsorted_attid = False
self.fix_deleted_deleted_objects = False
self.fix_incorrect_deleted_objects = False
self.fix_dn = False
self.fix_base64_userparameters = False
self.fix_utf8_userparameters = False
self.fix_doubled_userparameters = False
self.fix_sid_rid_set_conflict = False
self.reset_well_known_acls = reset_well_known_acls
self.reset_all_well_known_acls = False
self.in_transaction = in_transaction
self.infrastructure_dn = ldb.Dn(samdb, "CN=Infrastructure," + samdb.domain_dn())
self.naming_dn = ldb.Dn(samdb, "CN=Partitions,%s" % samdb.get_config_basedn())
self.schema_dn = samdb.get_schema_basedn()
self.rid_dn = ldb.Dn(samdb, "CN=RID Manager$,CN=System," + samdb.domain_dn())
self.ntds_dsa = ldb.Dn(samdb, samdb.get_dsServiceName())
self.class_schemaIDGUID = {}
self.wellknown_sds = get_wellknown_sds(self.samdb)
self.fix_all_missing_objectclass = False
self.fix_missing_deleted_objects = False
self.fix_replica_locations = False
self.fix_missing_rid_set_master = False
self.dn_set = set()
self.link_id_cache = {}
self.name_map = {}
try:
res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
attrs=["objectSid"])
dnsadmins_sid = ndr_unpack(security.dom_sid, res[0]["objectSid"][0])
self.name_map['DnsAdmins'] = str(dnsadmins_sid)
except ldb.LdbError, (enum, estr):
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
pass
self.system_session_info = system_session()
self.admin_session_info = admin_session(None, samdb.get_domain_sid())
res = self.samdb.search(base=self.ntds_dsa, scope=ldb.SCOPE_BASE, attrs=['msDS-hasMasterNCs', 'hasMasterNCs'])
if "msDS-hasMasterNCs" in res[0]:
self.write_ncs = res[0]["msDS-hasMasterNCs"]
else:
# If the Forest Level is less than 2003 then there is no
# msDS-hasMasterNCs, so we fall back to hasMasterNCs
# no need to merge as all the NCs that are in hasMasterNCs must
# also be in msDS-hasMasterNCs (but not the opposite)
if "hasMasterNCs" in res[0]:
self.write_ncs = res[0]["hasMasterNCs"]
else:
self.write_ncs = None
res = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['namingContexts'])
self.deleted_objects_containers = []
self.ncs_lacking_deleted_containers = []
self.dns_partitions = []
try:
self.ncs = res[0]["namingContexts"]
except KeyError:
pass
except IndexError:
pass
for nc in self.ncs:
try:
dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
self.deleted_objects_containers.append(dn)
except KeyError:
self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc))
domaindns_zone = 'DC=DomainDnsZones,%s' % self.samdb.get_default_basedn()
forestdns_zone = 'DC=ForestDnsZones,%s' % self.samdb.get_root_basedn()
domain = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
base=self.samdb.get_partitions_dn(),
expression="(&(objectClass=crossRef)(ncName=%s))" % domaindns_zone)
if len(domain) == 1:
self.dns_partitions.append((ldb.Dn(self.samdb, forestdns_zone), domain[0]))
forest = self.samdb.search(scope=ldb.SCOPE_ONELEVEL,
attrs=["msDS-NC-Replica-Locations", "msDS-NC-RO-Replica-Locations"],
base=self.samdb.get_partitions_dn(),
expression="(&(objectClass=crossRef)(ncName=%s))" % forestdns_zone)
if len(forest) == 1:
self.dns_partitions.append((ldb.Dn(self.samdb, domaindns_zone), forest[0]))
fsmo_dn = ldb.Dn(self.samdb, "CN=RID Manager$,CN=System," + self.samdb.domain_dn())
rid_master = get_fsmo_roleowner(self.samdb, fsmo_dn, "rid")
if ldb.Dn(self.samdb, self.samdb.get_dsServiceName()) == rid_master:
self.is_rid_master = True
else:
self.is_rid_master = False
# To get your rid set
# 1. Get server name
res = self.samdb.search(base=ldb.Dn(self.samdb, self.samdb.get_serverName()),
scope=ldb.SCOPE_BASE, attrs=["serverReference"])
# 2. Get server reference
self.server_ref_dn = ldb.Dn(self.samdb, res[0]['serverReference'][0])
# 3. Get RID Set
res = self.samdb.search(base=self.server_ref_dn,
scope=ldb.SCOPE_BASE, attrs=['rIDSetReferences'])
if "rIDSetReferences" in res[0]:
self.rid_set_dn = ldb.Dn(self.samdb, res[0]['rIDSetReferences'][0])
else:
self.rid_set_dn = None
def check_database(self, DN=None, scope=ldb.SCOPE_SUBTREE, controls=[], attrs=['*']):
'''perform a database check, returning the number of errors found'''
res = self.samdb.search(base=DN, scope=scope, attrs=['dn'], controls=controls)
self.report('Checking %u objects' % len(res))
error_count = 0
error_count += self.check_deleted_objects_containers()
self.attribute_or_class_ids = set()
for object in res:
self.dn_set.add(str(object.dn))
error_count += self.check_object(object.dn, attrs=attrs)
if DN is None:
error_count += self.check_rootdse()
if error_count != 0 and not self.fix:
self.report("Please use --fix to fix these errors")
self.report('Checked %u objects (%u errors)' % (len(res), error_count))
return error_count
def check_deleted_objects_containers(self):
"""This function only fixes conflicts on the Deleted Objects
containers, not the attributes"""
error_count = 0
for nc in self.ncs_lacking_deleted_containers:
if nc == self.schema_dn:
continue
error_count += 1
self.report("ERROR: NC %s lacks a reference to a Deleted Objects container" % nc)
if not self.confirm_all('Fix missing Deleted Objects container for %s?' % (nc), 'fix_missing_deleted_objects'):
continue
dn = ldb.Dn(self.samdb, "CN=Deleted Objects")
dn.add_base(nc)
conflict_dn = None
try:
# If something already exists here, add a conflict
res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[],
controls=["show_deleted:1", "extended_dn:1:1",
"show_recycled:1", "reveal_internals:0"])
if len(res) != 0:
guid = res[0].dn.get_extended_component("GUID")
conflict_dn = ldb.Dn(self.samdb,
"CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
conflict_dn.add_base(nc)
except ldb.LdbError, (enum, estr):
if enum == ldb.ERR_NO_SUCH_OBJECT:
pass
else:
self.report("Couldn't check for conflicting Deleted Objects container: %s" % estr)
return 1
if conflict_dn is not None:
try:
self.samdb.rename(dn, conflict_dn, ["show_deleted:1", "relax:0", "show_recycled:1"])
except ldb.LdbError, (enum, estr):
self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
return 1
# Refresh wellKnownObjects links
res = self.samdb.search(base=nc, scope=ldb.SCOPE_BASE,
attrs=['wellKnownObjects'],
controls=["show_deleted:1", "extended_dn:0",
"show_recycled:1", "reveal_internals:0"])
if len(res) != 1:
self.report("wellKnownObjects was not found for NC %s" % nc)
return 1
# Prevent duplicate deleted objects containers just in case
wko = res[0]["wellKnownObjects"]
listwko = []
proposed_objectguid = None
for o in wko:
dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
if self.is_deleted_objects_dn(dsdb_dn):
self.report("wellKnownObjects had duplicate Deleted Objects value %s" % o)
# We really want to put this back in the same spot
# as the original one, so that on replication we
# merge, rather than conflict.
proposed_objectguid = dsdb_dn.dn.get_extended_component("GUID")
listwko.append(o)
if proposed_objectguid is not None:
guid_suffix = "\nobjectGUID: %s" % str(misc.GUID(proposed_objectguid))
else:
wko_prefix = "B:32:%s" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
listwko.append('%s:%s' % (wko_prefix, dn))
guid_suffix = ""
# Insert a brand new Deleted Objects container
self.samdb.add_ldif("""dn: %s
objectClass: top
objectClass: container
description: Container for deleted objects
isDeleted: TRUE
isCriticalSystemObject: TRUE
showInAdvancedViewOnly: TRUE
systemFlags: -1946157056%s""" % (dn, guid_suffix),
controls=["relax:0", "provision:0"])
delta = ldb.Message()
delta.dn = ldb.Dn(self.samdb, str(res[0]["dn"]))
delta["wellKnownObjects"] = ldb.MessageElement(listwko,
ldb.FLAG_MOD_REPLACE,
"wellKnownObjects")
# Insert the link to the brand new container
if self.do_modify(delta, ["relax:0"],
"NC %s lacks Deleted Objects WKGUID" % nc,
validate=False):
self.report("Added %s well known guid link" % dn)
self.deleted_objects_containers.append(dn)
return error_count
def report(self, msg):
'''print a message unless quiet is set'''
if not self.quiet:
print(msg)
def confirm(self, msg, allow_all=False, forced=False):
'''confirm a change'''
if not self.fix:
return False
if self.quiet:
return self.yes
if self.yes:
forced = True
return common.confirm(msg, forced=forced, allow_all=allow_all)
################################################################
# a local confirm function with support for 'all'
def confirm_all(self, msg, all_attr):
'''confirm a change with support for "all" '''
if not self.fix:
return False
if getattr(self, all_attr) == 'NONE':
return False
if getattr(self, all_attr) == 'ALL':
forced = True
else:
forced = self.yes
if self.quiet:
return forced
c = common.confirm(msg, forced=forced, allow_all=True)
if c == 'ALL':
setattr(self, all_attr, 'ALL')
return True
if c == 'NONE':
setattr(self, all_attr, 'NONE')
return False
return c
def do_delete(self, dn, controls, msg):
'''delete dn with optional verbose output'''
if self.verbose:
self.report("delete DN %s" % dn)
try:
controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
self.samdb.delete(dn, controls=controls)
except Exception, err:
if self.in_transaction:
raise CommandError("%s : %s" % (msg, err))
self.report("%s : %s" % (msg, err))
return False
return True
def do_modify(self, m, controls, msg, validate=True):
'''perform a modify with optional verbose output'''
if self.verbose:
self.report(self.samdb.write_ldif(m, ldb.CHANGETYPE_MODIFY))
try:
controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
self.samdb.modify(m, controls=controls, validate=validate)
except Exception, err:
if self.in_transaction:
raise CommandError("%s : %s" % (msg, err))
self.report("%s : %s" % (msg, err))
return False
return True
def do_rename(self, from_dn, to_rdn, to_base, controls, msg):
'''perform a modify with optional verbose output'''
if self.verbose:
self.report("""dn: %s
changeType: modrdn
newrdn: %s
deleteOldRdn: 1
newSuperior: %s""" % (str(from_dn), str(to_rdn), str(to_base)))
try:
to_dn = to_rdn + to_base
controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
self.samdb.rename(from_dn, to_dn, controls=controls)
except Exception, err:
if self.in_transaction:
raise CommandError("%s : %s" % (msg, err))
self.report("%s : %s" % (msg, err))
return False
return True
def get_attr_linkID_and_reverse_name(self, attrname):
if attrname in self.link_id_cache:
return self.link_id_cache[attrname]
linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)
if linkID:
revname = self.samdb_schema.get_backlink_from_lDAPDisplayName(attrname)
else:
revname = None
self.link_id_cache[attrname] = (linkID, revname)
return linkID, revname
def err_empty_attribute(self, dn, attrname):
'''fix empty attributes'''
self.report("ERROR: Empty attribute %s in %s" % (attrname, dn))
if not self.confirm_all('Remove empty attribute %s from %s?' % (attrname, dn), 'remove_all_empty_attributes'):
self.report("Not fixing empty attribute %s" % attrname)
return
m = ldb.Message()
m.dn = dn
m[attrname] = ldb.MessageElement('', ldb.FLAG_MOD_DELETE, attrname)
if self.do_modify(m, ["relax:0", "show_recycled:1"],
"Failed to remove empty attribute %s" % attrname, validate=False):
self.report("Removed empty attribute %s" % attrname)
def err_normalise_mismatch(self, dn, attrname, values):
'''fix attribute normalisation errors'''
self.report("ERROR: Normalisation error for attribute %s in %s" % (attrname, dn))
mod_list = []
for val in values:
normalised = self.samdb.dsdb_normalise_attributes(
self.samdb_schema, attrname, [val])
if len(normalised) != 1:
self.report("Unable to normalise value '%s'" % val)
mod_list.append((val, ''))
elif (normalised[0] != val):
self.report("value '%s' should be '%s'" % (val, normalised[0]))
mod_list.append((val, normalised[0]))
if not self.confirm_all('Fix normalisation for %s from %s?' % (attrname, dn), 'fix_all_normalisation'):
self.report("Not fixing attribute %s" % attrname)
return
m = ldb.Message()
m.dn = dn
for i in range(0, len(mod_list)):
(val, nval) = mod_list[i]
m['value_%u' % i] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
if nval != '':
m['normv_%u' % i] = ldb.MessageElement(nval, ldb.FLAG_MOD_ADD,
attrname)
if self.do_modify(m, ["relax:0", "show_recycled:1"],
"Failed to normalise attribute %s" % attrname,
validate=False):
self.report("Normalised attribute %s" % attrname)
def err_normalise_mismatch_replace(self, dn, attrname, values):
'''fix attribute normalisation errors'''
normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, values)
self.report("ERROR: Normalisation error for attribute '%s' in '%s'" % (attrname, dn))
self.report("Values/Order of values do/does not match: %s/%s!" % (values, list(normalised)))
if list(normalised) == values:
return
if not self.confirm_all("Fix normalisation for '%s' from '%s'?" % (attrname, dn), 'fix_all_normalisation'):
self.report("Not fixing attribute '%s'" % attrname)
return
m = ldb.Message()
m.dn = dn
m[attrname] = ldb.MessageElement(normalised, ldb.FLAG_MOD_REPLACE, attrname)
if self.do_modify(m, ["relax:0", "show_recycled:1"],
"Failed to normalise attribute %s" % attrname,
validate=False):
self.report("Normalised attribute %s" % attrname)
def err_duplicate_values(self, dn, attrname, dup_values, values):
'''fix attribute normalisation errors'''
self.report("ERROR: Duplicate values for attribute '%s' in '%s'" % (attrname, dn))
self.report("Values contain a duplicate: [%s]/[%s]!" % (','.join(dup_values), ','.join(values)))
if not self.confirm_all("Fix duplicates for '%s' from '%s'?" % (attrname, dn), 'fix_all_duplicates'):
self.report("Not fixing attribute '%s'" % attrname)
return
m = ldb.Message()
m.dn = dn
m[attrname] = ldb.MessageElement(values, ldb.FLAG_MOD_REPLACE, attrname)
if self.do_modify(m, ["relax:0", "show_recycled:1"],
"Failed to remove duplicate value on attribute %s" % attrname,
validate=False):
self.report("Removed duplicate value on attribute %s" % attrname)
def is_deleted_objects_dn(self, dsdb_dn):
'''see if a dsdb_Dn is the special Deleted Objects DN'''
return dsdb_dn.prefix == "B:32:%s:" % dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER
def err_missing_objectclass(self, dn):
"""handle object without objectclass"""
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)))
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'):
self.report("Not deleting object with missing objectclass '%s'" % dn)
return
if self.do_delete(dn, ["relax:0"],
"Failed to remove DN %s" % dn):
self.report("Removed DN %s" % dn)
def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn, remove_plausible=False):
"""handle a DN pointing to a deleted object"""
self.report("ERROR: target DN is deleted for %s in object %s - %s" % (attrname, dn, val))
self.report("Target GUID points at deleted DN %r" % str(correct_dn))
if not remove_plausible:
if not self.confirm_all('Remove DN link?', 'remove_implausible_deleted_DN_links'):
self.report("Not removing")
return
else:
if not self.confirm_all('Remove stale DN link?', 'remove_plausible_deleted_DN_links'):
self.report("Not removing")
return
m = ldb.Message()
m.dn = dn
m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
if self.do_modify(m, ["show_recycled:1",
"local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
"Failed to remove deleted DN attribute %s" % attrname):
self.report("Removed deleted DN on attribute %s" % attrname)
def err_missing_target_dn_or_GUID(self, dn, attrname, val, dsdb_dn):
"""handle a missing target DN (if specified, GUID form can't be found,
and otherwise DN string form can't be found)"""
# check if its a backlink
linkID, _ = self.get_attr_linkID_and_reverse_name(attrname)
if (linkID & 1 == 0) and str(dsdb_dn).find('\\0ADEL') == -1:
self.report("Not removing dangling forward link")
return
self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn, False)
def err_missing_dn_GUID_component(self, dn, attrname, val, dsdb_dn, errstr):
"""handle a missing GUID extended DN component"""
self.report("ERROR: %s component for %s in object %s - %s" % (errstr, attrname, dn, val))
controls=["extended_dn:1:1", "show_recycled:1"]
try:
res = self.samdb.search(base=str(dsdb_dn.dn), scope=ldb.SCOPE_BASE,
attrs=[], controls=controls)
except ldb.LdbError, (enum, estr):
self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
return
if len(res) == 0:
self.report("unable to find object for DN %s" % dsdb_dn.dn)
self.err_missing_target_dn_or_GUID(dn, attrname, val, dsdb_dn)
return
dsdb_dn.dn = res[0].dn
if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_DN_GUIDs'):
self.report("Not fixing %s" % errstr)
return
m = ldb.Message()
m.dn = dn
m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
if self.do_modify(m, ["show_recycled:1"],
"Failed to fix %s on attribute %s" % (errstr, attrname)):
self.report("Fixed %s on attribute %s" % (errstr, attrname))
def err_incorrect_binary_dn(self, dn, attrname, val, dsdb_dn, errstr):
"""handle an incorrect binary DN component"""
self.report("ERROR: %s binary component for %s in object %s - %s" % (errstr, attrname, dn, val))
controls=["extended_dn:1:1", "show_recycled:1"]
if not self.confirm_all('Change DN to %s?' % str(dsdb_dn), 'fix_all_binary_dn'):
self.report("Not fixing %s" % errstr)
return
m = ldb.Message()
m.dn = dn
m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
if self.do_modify(m, ["show_recycled:1"],
"Failed to fix %s on attribute %s" % (errstr, attrname)):
self.report("Fixed %s on attribute %s" % (errstr, attrname))
def err_dn_component_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, mismatch_type):
"""handle a DN string being incorrect"""
self.report("ERROR: incorrect DN %s component for %s in object %s - %s" % (mismatch_type, attrname, dn, val))
dsdb_dn.dn = correct_dn
if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
'fix_all_%s_dn_component_mismatch' % mismatch_type):
self.report("Not fixing %s component mismatch" % mismatch_type)
return
m = ldb.Message()
m.dn = dn
m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
m['new_value'] = ldb.MessageElement(str(dsdb_dn), ldb.FLAG_MOD_ADD, attrname)
if self.do_modify(m, ["show_recycled:1"],
"Failed to fix incorrect DN %s on attribute %s" % (mismatch_type, attrname)):
self.report("Fixed incorrect DN %s on attribute %s" % (mismatch_type, attrname))
def err_unknown_attribute(self, obj, attrname):
'''handle an unknown attribute error'''
self.report("ERROR: unknown attribute '%s' in %s" % (attrname, obj.dn))
if not self.confirm_all('Remove unknown attribute %s' % attrname, 'remove_all_unknown_attributes'):
self.report("Not removing %s" % attrname)
return
m = ldb.Message()
m.dn = obj.dn
m['old_value'] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, attrname)
if self.do_modify(m, ["relax:0", "show_recycled:1"],
"Failed to remove unknown attribute %s" % attrname):
self.report("Removed unknown attribute %s" % (attrname))
def err_undead_linked_attribute(self, obj, attrname, val):
'''handle a link that should not be there on a deleted object'''
self.report("ERROR: linked attribute '%s' to '%s' is present on "
"deleted object %s" % (attrname, val, obj.dn))
if not self.confirm_all('Remove linked attribute %s' % attrname, 'fix_undead_linked_attributes'):
self.report("Not removing linked attribute %s" % attrname)
return
m = ldb.Message()
m.dn = obj.dn
m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
if self.do_modify(m, ["show_recycled:1", "show_deleted:1", "reveal_internals:0",
"local_oid:%s:0" % dsdb.DSDB_CONTROL_REPLMD_VANISH_LINKS],
"Failed to delete forward link %s" % attrname):
self.report("Fixed undead forward link %s" % (attrname))
def err_missing_backlink(self, obj, attrname, val, backlink_name, target_dn):
'''handle a missing backlink value'''
self.report("ERROR: missing backlink attribute '%s' in %s for link %s in %s" % (backlink_name, target_dn, attrname, obj.dn))
if not self.confirm_all('Fix missing backlink %s' % backlink_name, 'fix_all_missing_backlinks'):
self.report("Not fixing missing backlink %s" % backlink_name)
return
m = ldb.Message()
m.dn = obj.dn
m['old_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, attrname)
if self.do_modify(m, ["show_recycled:1"],
"Failed to fix missing backlink %s" % backlink_name):
self.report("Fixed missing backlink %s" % (backlink_name))
def err_incorrect_rmd_flags(self, obj, attrname, revealed_dn):
'''handle a incorrect RMD_FLAGS value'''
rmd_flags = int(revealed_dn.dn.get_extended_component("RMD_FLAGS"))
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()))
if not self.confirm_all('Fix incorrect RMD_FLAGS %u' % rmd_flags, 'fix_rmd_flags'):
self.report("Not fixing incorrect RMD_FLAGS %u" % rmd_flags)
return
m = ldb.Message()
m.dn = obj.dn
m['old_value'] = ldb.MessageElement(str(revealed_dn), ldb.FLAG_MOD_DELETE, attrname)
if self.do_modify(m, ["show_recycled:1", "reveal_internals:0", "show_deleted:0"],
"Failed to fix incorrect RMD_FLAGS %u" % rmd_flags):
self.report("Fixed incorrect RMD_FLAGS %u" % (rmd_flags))
def err_orphaned_backlink(self, obj, attrname, val, link_name, target_dn):
'''handle a orphaned backlink value'''
self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (attrname, obj.dn, link_name, target_dn))
if not self.confirm_all('Remove orphaned backlink %s' % attrname, 'fix_all_orphaned_backlinks'):
self.report("Not removing orphaned backlink %s" % attrname)
return
m = ldb.Message()
m.dn = obj.dn
m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
if self.do_modify(m, ["show_recycled:1", "relax:0"],
"Failed to fix orphaned backlink %s" % attrname):
self.report("Fixed orphaned backlink %s" % (attrname))
def err_no_fsmoRoleOwner(self, obj):
'''handle a missing fSMORoleOwner'''
self.report("ERROR: fSMORoleOwner not found for role %s" % (obj.dn))
res = self.samdb.search("",
scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
assert len(res) == 1
serviceName = res[0]["dsServiceName"][0]
if not self.confirm_all('Sieze role %s onto current DC by adding fSMORoleOwner=%s' % (obj.dn, serviceName), 'seize_fsmo_role'):
self.report("Not Siezing role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
return
m = ldb.Message()
m.dn = obj.dn
m['value'] = ldb.MessageElement(serviceName, ldb.FLAG_MOD_ADD, 'fSMORoleOwner')
if self.do_modify(m, [],
"Failed to sieze role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName)):
self.report("Siezed role %s onto current DC by adding fSMORoleOwner=%s" % (obj.dn, serviceName))
def err_missing_parent(self, obj):
'''handle a missing parent'''
self.report("ERROR: parent object not found for %s" % (obj.dn))
if not self.confirm_all('Move object %s into LostAndFound?' % (obj.dn), 'move_to_lost_and_found'):
self.report('Not moving object %s into LostAndFound' % (obj.dn))
return
keep_transaction = False
self.samdb.transaction_start()
try:
nc_root = self.samdb.get_nc_root(obj.dn);
lost_and_found = self.samdb.get_wellknown_dn(nc_root, dsdb.DS_GUID_LOSTANDFOUND_CONTAINER)
new_dn = ldb.Dn(self.samdb, str(obj.dn))
new_dn.remove_base_components(len(new_dn) - 1)
if self.do_rename(obj.dn, new_dn, lost_and_found, ["show_deleted:0", "relax:0"],
"Failed to rename object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found)):
self.report("Renamed object %s into lostAndFound at %s" % (obj.dn, new_dn + lost_and_found))
m = ldb.Message()
m.dn = obj.dn
m['lastKnownParent'] = ldb.MessageElement(str(obj.dn.parent()), ldb.FLAG_MOD_REPLACE, 'lastKnownParent')
if self.do_modify(m, [],
"Failed to set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found)):
self.report("Set lastKnownParent on lostAndFound object at %s" % (new_dn + lost_and_found))
keep_transaction = True
except:
self.samdb.transaction_cancel()
raise
if keep_transaction:
self.samdb.transaction_commit()
else:
self.samdb.transaction_cancel()
def err_wrong_dn(self, obj, new_dn, rdn_attr, rdn_val, name_val):
'''handle a wrong dn'''
new_rdn = ldb.Dn(self.samdb, str(new_dn))
new_rdn.remove_base_components(len(new_rdn) - 1)
new_parent = new_dn.parent()
attributes = ""
if rdn_val != name_val:
attributes += "%s=%r " % (rdn_attr, rdn_val)
attributes += "name=%r" % (name_val)
self.report("ERROR: wrong dn[%s] %s new_dn[%s]" % (obj.dn, attributes, new_dn))
if not self.confirm_all("Rename %s to %s?" % (obj.dn, new_dn), 'fix_dn'):
self.report("Not renaming %s to %s" % (obj.dn, new_dn))
return
if self.do_rename(obj.dn, new_rdn, new_parent, ["show_recycled:1", "relax:0"],
"Failed to rename object %s into %s" % (obj.dn, new_dn)):
self.report("Renamed %s into %s" % (obj.dn, new_dn))
def err_wrong_instancetype(self, obj, calculated_instancetype):
'''handle a wrong instanceType'''
self.report("ERROR: wrong instanceType %s on %s, should be %d" % (obj["instanceType"], obj.dn, calculated_instancetype))
if not self.confirm_all('Change instanceType from %s to %d on %s?' % (obj["instanceType"], calculated_instancetype, obj.dn), 'fix_instancetype'):
self.report('Not changing instanceType from %s to %d on %s' % (obj["instanceType"], calculated_instancetype, obj.dn))
return
m = ldb.Message()
m.dn = obj.dn
m['value'] = ldb.MessageElement(str(calculated_instancetype), ldb.FLAG_MOD_REPLACE, 'instanceType')
if self.do_modify(m, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA],
"Failed to correct missing instanceType on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype)):
self.report("Corrected instancetype on %s by setting instanceType=%d" % (obj.dn, calculated_instancetype))
def err_short_userParameters(self, obj, attrname, value):
# This is a truncated userParameters due to a pre 4.1 replication bug
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)))
def err_base64_userParameters(self, obj, attrname, value):
'''handle a wrong userParameters'''
self.report("ERROR: wrongly formatted userParameters %s on %s, should not be base64-encoded" % (value, obj.dn))
if not self.confirm_all('Convert userParameters from base64 encoding on %s?' % (obj.dn), 'fix_base64_userparameters'):
self.report('Not changing userParameters from base64 encoding on %s' % (obj.dn))
return
m = ldb.Message()
m.dn = obj.dn
m['value'] = ldb.MessageElement(b64decode(obj[attrname][0]), ldb.FLAG_MOD_REPLACE, 'userParameters')
if self.do_modify(m, [],
"Failed to correct base64-encoded userParameters on %s by converting from base64" % (obj.dn)):
self.report("Corrected base64-encoded userParameters on %s by converting from base64" % (obj.dn))
def err_utf8_userParameters(self, obj, attrname, value):
'''handle a wrong userParameters'''
self.report("ERROR: wrongly formatted userParameters on %s, should not be psudo-UTF8 encoded" % (obj.dn))
if not self.confirm_all('Convert userParameters from UTF8 encoding on %s?' % (obj.dn), 'fix_utf8_userparameters'):
self.report('Not changing userParameters from UTF8 encoding on %s' % (obj.dn))
return
m = ldb.Message()
m.dn = obj.dn
m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf8').encode('utf-16-le'),
ldb.FLAG_MOD_REPLACE, 'userParameters')
if self.do_modify(m, [],
"Failed to correct psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn)):
self.report("Corrected psudo-UTF8 encoded userParameters on %s by converting from UTF8" % (obj.dn))
def err_doubled_userParameters(self, obj, attrname, value):
'''handle a wrong userParameters'''
self.report("ERROR: wrongly formatted userParameters on %s, should not be double UTF16 encoded" % (obj.dn))
if not self.confirm_all('Convert userParameters from doubled UTF-16 encoding on %s?' % (obj.dn), 'fix_doubled_userparameters'):
self.report('Not changing userParameters from doubled UTF-16 encoding on %s' % (obj.dn))
return
m = ldb.Message()
m.dn = obj.dn
m['value'] = ldb.MessageElement(obj[attrname][0].decode('utf-16-le').decode('utf-16-le').encode('utf-16-le'),
ldb.FLAG_MOD_REPLACE, 'userParameters')
if self.do_modify(m, [],
"Failed to correct doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn)):
self.report("Corrected doubled-UTF16 encoded userParameters on %s by converting" % (obj.dn))
def err_odd_userParameters(self, obj, attrname):
# This is a truncated userParameters due to a pre 4.1 replication bug
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)))
def find_revealed_link(self, dn, attrname, guid):
'''return a revealed link in an object'''
res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[attrname],
controls=["show_deleted:0", "extended_dn:0", "reveal_internals:0"])
syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
for val in res[0][attrname]:
dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
guid2 = dsdb_dn.dn.get_extended_component("GUID")
if guid == guid2:
return dsdb_dn
return None
def check_dn(self, obj, attrname, syntax_oid):
'''check a DN attribute for correctness'''
error_count = 0
obj_guid = obj['objectGUID'][0]
for val in obj[attrname]:
dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
# all DNs should have a GUID component
guid = dsdb_dn.dn.get_extended_component("GUID")
if guid is None:
error_count += 1
self.err_missing_dn_GUID_component(obj.dn, attrname, val, dsdb_dn,
"missing GUID")
continue
guidstr = str(misc.GUID(guid))
attrs = ['isDeleted', 'replPropertyMetaData']
if (str(attrname).lower() == 'msds-hasinstantiatedncs') and (obj.dn == self.ntds_dsa):
fixing_msDS_HasInstantiatedNCs = True
attrs.append("instanceType")
else:
fixing_msDS_HasInstantiatedNCs = False
linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
if reverse_link_name is not None:
attrs.append(reverse_link_name)
# check its the right GUID
try:
res = self.samdb.search(base="<GUID=%s>" % guidstr, scope=ldb.SCOPE_BASE,
attrs=attrs, controls=["extended_dn:1:1", "show_recycled:1",
"reveal_internals:0"
])
except ldb.LdbError, (enum, estr):
error_count += 1
self.report("ERROR: no target object found for GUID component for %s in object %s - %s" % (attrname, obj.dn, val))
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
self.err_missing_target_dn_or_GUID(obj.dn, attrname, val, dsdb_dn)
continue
if fixing_msDS_HasInstantiatedNCs:
dsdb_dn.prefix = "B:8:%08X:" % int(res[0]['instanceType'][0])
dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
if str(dsdb_dn) != val:
error_count +=1
self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
continue
# now we have two cases - the source object might or might not be deleted
is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
target_is_deleted = 'isDeleted' in res[0] and res[0]['isDeleted'][0].upper() == 'TRUE'
if is_deleted and not obj.dn in self.deleted_objects_containers and linkID:
# A fully deleted object should not have any linked
# attributes. (MS-ADTS 3.1.1.5.5.1.1 Tombstone
# Requirements and 3.1.1.5.5.1.3 Recycled-Object
# Requirements)
self.err_undead_linked_attribute(obj, attrname, val)
error_count += 1
continue
elif target_is_deleted and not self.is_deleted_objects_dn(dsdb_dn) and linkID:
# the target DN is not allowed to be deleted, unless the target DN is the
# special Deleted Objects container
error_count += 1
local_usn = dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN")
if local_usn:
if 'replPropertyMetaData' in res[0]:
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
str(res[0]['replPropertyMetadata']))
found_data = False
for o in repl.ctr.array:
if o.attid == drsuapi.DRSUAPI_ATTID_isDeleted:
deleted_usn = o.local_usn
if deleted_usn >= int(local_usn):
# If the object was deleted after the link
# was last modified then, clean it up here
found_data = True
break
if found_data:
self.err_deleted_dn(obj.dn, attrname,
val, dsdb_dn, res[0].dn, True)
continue
self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn, False)
continue
# We should not check for incorrect
# components on deleted links, as these are allowed to
# go stale (we just need the GUID, not the name)
rmd_blob = dsdb_dn.dn.get_extended_component("RMD_FLAGS")
if rmd_blob is not None:
rmd_flags = int(rmd_blob)
if rmd_flags & 1:
continue
# check the DN matches in string form
if str(res[0].dn) != str(dsdb_dn.dn):
error_count += 1
self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
res[0].dn, "string")
continue
if res[0].dn.get_extended_component("GUID") != dsdb_dn.dn.get_extended_component("GUID"):
error_count += 1
self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
res[0].dn, "GUID")
continue
if res[0].dn.get_extended_component("SID") != dsdb_dn.dn.get_extended_component("SID"):
error_count += 1
self.err_dn_component_target_mismatch(obj.dn, attrname, val, dsdb_dn,
res[0].dn, "SID")
continue
# check the reverse_link is correct if there should be one
if reverse_link_name is not None:
match_count = 0
if reverse_link_name in res[0]:
for v in res[0][reverse_link_name]:
v_guid = dsdb_Dn(self.samdb, v).dn.get_extended_component("GUID")
if v_guid == obj_guid:
match_count += 1
if match_count != 1:
if target_is_deleted:
error_count += 1
if linkID & 1:
self.err_missing_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
else:
self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn)
continue
return error_count
def get_originating_time(self, val, attid):
'''Read metadata properties and return the originating time for
a given attributeId.
:return: the originating time or 0 if not found
'''
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
obj = repl.ctr
for o in repl.ctr.array:
if o.attid == attid:
return o.originating_change_time
return 0
def process_metadata(self, dn, val):
'''Read metadata properties and list attributes in it.
raises KeyError if the attid is unknown.'''
set_att = set()
wrong_attids = set()
list_attid = []
in_schema_nc = dn.is_child_of(self.schema_dn)
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob, str(val))
obj = repl.ctr
for o in repl.ctr.array:
att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
set_att.add(att.lower())
list_attid.append(o.attid)
correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att,
is_schema_nc=in_schema_nc)
if correct_attid != o.attid:
wrong_attids.add(o.attid)
return (set_att, list_attid, wrong_attids)
def fix_metadata(self, dn, attr):
'''re-write replPropertyMetaData elements for a single attribute for a
object. This is used to fix missing replPropertyMetaData elements'''
res = self.samdb.search(base = dn, scope=ldb.SCOPE_BASE, attrs = [attr],
controls = ["search_options:1:2", "show_recycled:1"])
msg = res[0]
nmsg = ldb.Message()
nmsg.dn = dn
nmsg[attr] = ldb.MessageElement(msg[attr], ldb.FLAG_MOD_REPLACE, attr)
if self.do_modify(nmsg, ["relax:0", "provision:0", "show_recycled:1"],
"Failed to fix metadata for attribute %s" % attr):
self.report("Fixed metadata for attribute %s" % attr)
def ace_get_effective_inherited_type(self, ace):
if ace.flags & security.SEC_ACE_FLAG_INHERIT_ONLY:
return None
check = False
if ace.type == security.SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT:
check = True
elif ace.type == security.SEC_ACE_TYPE_ACCESS_DENIED_OBJECT:
check = True
elif ace.type == security.SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT:
check = True
elif ace.type == security.SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT:
check = True
if not check:
return None
if not ace.object.flags & security.SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT:
return None
return str(ace.object.inherited_type)
def lookup_class_schemaIDGUID(self, cls):
if cls in self.class_schemaIDGUID:
return self.class_schemaIDGUID[cls]
flt = "(&(ldapDisplayName=%s)(objectClass=classSchema))" % cls
res = self.samdb.search(base=self.schema_dn,
expression=flt,
attrs=["schemaIDGUID"])
t = str(ndr_unpack(misc.GUID, res[0]["schemaIDGUID"][0]))
self.class_schemaIDGUID[cls] = t
return t
def process_sd(self, dn, obj):
sd_attr = "nTSecurityDescriptor"
sd_val = obj[sd_attr]
sd = ndr_unpack(security.descriptor, str(sd_val))
is_deleted = 'isDeleted' in obj and obj['isDeleted'][0].upper() == 'TRUE'
if is_deleted:
# we don't fix deleted objects
return (sd, None)
sd_clean = security.descriptor()
sd_clean.owner_sid = sd.owner_sid
sd_clean.group_sid = sd.group_sid
sd_clean.type = sd.type
sd_clean.revision = sd.revision
broken = False
last_inherited_type = None
aces = []
if sd.sacl is not None:
aces = sd.sacl.aces
for i in range(0, len(aces)):
ace = aces[i]
if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
sd_clean.sacl_add(ace)
continue
t = self.ace_get_effective_inherited_type(ace)
if t is None:
continue
if last_inherited_type is not None:
if t != last_inherited_type:
# if it inherited from more than
# one type it's very likely to be broken
#
# If not the recalculation will calculate
# the same result.
broken = True
continue
last_inherited_type = t
aces = []
if sd.dacl is not None:
aces = sd.dacl.aces
for i in range(0, len(aces)):
ace = aces[i]
if not ace.flags & security.SEC_ACE_FLAG_INHERITED_ACE:
sd_clean.dacl_add(ace)
continue
t = self.ace_get_effective_inherited_type(ace)
if t is None:
continue
if last_inherited_type is not None:
if t != last_inherited_type:
# if it inherited from more than
# one type it's very likely to be broken
#
# If not the recalculation will calculate
# the same result.
broken = True
continue
last_inherited_type = t
if broken:
return (sd_clean, sd)
if last_inherited_type is None:
# ok
return (sd, None)
cls = None
try:
cls = obj["objectClass"][-1]
except KeyError, e:
pass
if cls is None:
res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
attrs=["isDeleted", "objectClass"],
controls=["show_recycled:1"])
o = res[0]
is_deleted = 'isDeleted' in o and o['isDeleted'][0].upper() == 'TRUE'
if is_deleted:
# we don't fix deleted objects
return (sd, None)
cls = o["objectClass"][-1]
t = self.lookup_class_schemaIDGUID(cls)
if t != last_inherited_type:
# broken
return (sd_clean, sd)
# ok
return (sd, None)
def err_wrong_sd(self, dn, sd, sd_broken):
'''re-write the SD due to incorrect inherited ACEs'''
sd_attr = "nTSecurityDescriptor"
sd_val = ndr_pack(sd)
sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
if not self.confirm_all('Fix %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor'):
self.report('Not fixing %s on %s\n' % (sd_attr, dn))
return
nmsg = ldb.Message()
nmsg.dn = dn
nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
"Failed to fix attribute %s" % sd_attr):
self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
def err_wrong_default_sd(self, dn, sd, sd_old, diff):
'''re-write the SD due to not matching the default (optional mode for fixing an incorrect provision)'''
sd_attr = "nTSecurityDescriptor"
sd_val = ndr_pack(sd)
sd_old_val = ndr_pack(sd_old)
sd_flags = security.SECINFO_DACL | security.SECINFO_SACL
if sd.owner_sid is not None:
sd_flags |= security.SECINFO_OWNER
if sd.group_sid is not None:
sd_flags |= security.SECINFO_GROUP
if not self.confirm_all('Reset %s on %s back to provision default?\n%s' % (sd_attr, dn, diff), 'reset_all_well_known_acls'):
self.report('Not resetting %s on %s\n' % (sd_attr, dn))
return
m = ldb.Message()
m.dn = dn
m[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
if self.do_modify(m, ["sd_flags:1:%d" % sd_flags],
"Failed to reset attribute %s" % sd_attr):
self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
def err_missing_sd_owner(self, dn, sd):
'''re-write the SD due to a missing owner or group'''
sd_attr = "nTSecurityDescriptor"
sd_val = ndr_pack(sd)
sd_flags = security.SECINFO_OWNER | security.SECINFO_GROUP
if not self.confirm_all('Fix missing owner or group in %s on %s?' % (sd_attr, dn), 'fix_ntsecuritydescriptor_owner_group'):
self.report('Not fixing missing owner or group %s on %s\n' % (sd_attr, dn))
return
nmsg = ldb.Message()
nmsg.dn = dn
nmsg[sd_attr] = ldb.MessageElement(sd_val, ldb.FLAG_MOD_REPLACE, sd_attr)
# By setting the session_info to admin_session_info and
# setting the security.SECINFO_OWNER | security.SECINFO_GROUP
# flags we cause the descriptor module to set the correct
# owner and group on the SD, replacing the None/NULL values
# for owner_sid and group_sid currently present.
#
# The admin_session_info matches that used in provision, and
# is the best guess we can make for an existing object that
# hasn't had something specifically set.
#
# This is important for the dns related naming contexts.
self.samdb.set_session_info(self.admin_session_info)
if self.do_modify(nmsg, ["sd_flags:1:%d" % sd_flags],
"Failed to fix metadata for attribute %s" % sd_attr):
self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, dn))
self.samdb.set_session_info(self.system_session_info)
def has_replmetadata_zero_invocationid(self, dn, repl_meta_data):
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
str(repl_meta_data))
ctr = repl.ctr
found = False
for o in ctr.array:
# Search for a zero invocationID
if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
continue
found = True
self.report('''ERROR: on replPropertyMetaData of %s, the instanceType on attribute 0x%08x,
version %d changed at %s is 00000000-0000-0000-0000-000000000000,
but should be non-zero. Proposed fix is to set to our invocationID (%s).'''
% (dn, o.attid, o.version,
time.ctime(samba.nttime2unix(o.originating_change_time)),
self.samdb.get_invocation_id()))
return found
def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
str(repl_meta_data))
ctr = repl.ctr
now = samba.unix2nttime(int(time.time()))
found = False
for o in ctr.array:
# Search for a zero invocationID
if o.originating_invocation_id != misc.GUID("00000000-0000-0000-0000-000000000000"):
continue
found = True
seq = self.samdb.sequence_number(ldb.SEQ_NEXT)
o.version = o.version + 1
o.originating_change_time = now
o.originating_invocation_id = misc.GUID(self.samdb.get_invocation_id())
o.originating_usn = seq
o.local_usn = seq
if found:
replBlob = ndr_pack(repl)
msg = ldb.Message()
msg.dn = dn
if not self.confirm_all('Fix %s on %s by setting originating_invocation_id on some elements to our invocationID %s?'
% (attr, dn, self.samdb.get_invocation_id()), 'fix_replmetadata_zero_invocationid'):
self.report('Not fixing zero originating_invocation_id in %s on %s\n' % (attr, dn))
return
nmsg = ldb.Message()
nmsg.dn = dn
nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
"local_oid:1.3.6.1.4.1.7165.4.3.14:0"],
"Failed to fix attribute %s" % attr):
self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
def err_replmetadata_unknown_attid(self, dn, attr, repl_meta_data):
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
str(repl_meta_data))
ctr = repl.ctr
for o in ctr.array:
# Search for an invalid attid
try:
att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
except KeyError:
self.report('ERROR: attributeID 0X%0X is not known in our schema, not fixing %s on %s\n' % (o.attid, attr, dn))
return
def err_replmetadata_incorrect_attid(self, dn, attr, repl_meta_data, wrong_attids):
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
str(repl_meta_data))
fix = False
set_att = set()
remove_attid = set()
hash_att = {}
in_schema_nc = dn.is_child_of(self.schema_dn)
ctr = repl.ctr
# Sort the array, except for the last element. This strange
# construction, creating a new list, due to bugs in samba's
# array handling in IDL generated objects.
ctr.array = sorted(ctr.array[:], key=lambda o: o.attid)
# Now walk it in reverse, so we see the low (and so incorrect,
# the correct values are above 0x80000000) values first and
# remove the 'second' value we see.
for o in reversed(ctr.array):
print "%s: 0x%08x" % (dn, o.attid)
att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
if att.lower() in set_att:
self.report('ERROR: duplicate attributeID values for %s in %s on %s\n' % (att, attr, dn))
if not self.confirm_all('Fix %s on %s by removing the duplicate value 0x%08x for %s (keeping 0x%08x)?'
% (attr, dn, o.attid, att, hash_att[att].attid),
'fix_replmetadata_duplicate_attid'):
self.report('Not fixing duplicate value 0x%08x for %s in %s on %s\n'
% (o.attid, att, attr, dn))
return
fix = True
remove_attid.add(o.attid)
# We want to set the metadata for the most recent
# update to have been applied locally, that is the metadata
# matching the (eg string) value in the attribute
if o.local_usn > hash_att[att].local_usn:
# This is always what we would have sent over DRS,
# because the DRS server will have sent the
# msDS-IntID, but with the values from both
# attribute entries.
hash_att[att].version = o.version
hash_att[att].originating_change_time = o.originating_change_time
hash_att[att].originating_invocation_id = o.originating_invocation_id
hash_att[att].originating_usn = o.originating_usn
hash_att[att].local_usn = o.local_usn
# Do not re-add the value to the set or overwrite the hash value
continue
hash_att[att] = o
set_att.add(att.lower())
# Generate a real list we can sort on properly
new_list = [o for o in ctr.array if o.attid not in remove_attid]
if (len(wrong_attids) > 0):
for o in new_list:
if o.attid in wrong_attids:
att = self.samdb_schema.get_lDAPDisplayName_by_attid(o.attid)
correct_attid = self.samdb_schema.get_attid_from_lDAPDisplayName(att, is_schema_nc=in_schema_nc)
self.report('ERROR: incorrect attributeID values in %s on %s\n' % (attr, dn))
if not self.confirm_all('Fix %s on %s by replacing incorrect value 0x%08x for %s (new 0x%08x)?'
% (attr, dn, o.attid, att, hash_att[att].attid), 'fix_replmetadata_wrong_attid'):
self.report('Not fixing incorrect value 0x%08x with 0x%08x for %s in %s on %s\n'
% (o.attid, correct_attid, att, attr, dn))
return
fix = True
o.attid = correct_attid
if fix:
# Sort the array, (we changed the value so must re-sort)
new_list[:] = sorted(new_list[:], key=lambda o: o.attid)
# If we did not already need to fix it, then ask about sorting
if not fix:
self.report('ERROR: unsorted attributeID values in %s on %s\n' % (attr, dn))
if not self.confirm_all('Fix %s on %s by sorting the attribute list?'
% (attr, dn), 'fix_replmetadata_unsorted_attid'):
self.report('Not fixing %s on %s\n' % (attr, dn))
return
# The actual sort done is done at the top of the function
ctr.count = len(new_list)
ctr.array = new_list
replBlob = ndr_pack(repl)
nmsg = ldb.Message()
nmsg.dn = dn
nmsg[attr] = ldb.MessageElement(replBlob, ldb.FLAG_MOD_REPLACE, attr)
if self.do_modify(nmsg, ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK_MODIFY_RO_REPLICA,
"local_oid:1.3.6.1.4.1.7165.4.3.14:0",
"local_oid:1.3.6.1.4.1.7165.4.3.25:0"],
"Failed to fix attribute %s" % attr):
self.report("Fixed attribute '%s' of '%s'\n" % (attr, dn))
def is_deleted_deleted_objects(self, obj):
faulty = False
if "description" not in obj:
self.report("ERROR: description not present on Deleted Objects container %s" % obj.dn)
faulty = True
if "showInAdvancedViewOnly" not in obj or obj['showInAdvancedViewOnly'][0].upper() == 'FALSE':
self.report("ERROR: showInAdvancedViewOnly not present on Deleted Objects container %s" % obj.dn)
faulty = True
if "objectCategory" not in obj:
self.report("ERROR: objectCategory not present on Deleted Objects container %s" % obj.dn)
faulty = True
if "isCriticalSystemObject" not in obj or obj['isCriticalSystemObject'][0].upper() == 'FALSE':
self.report("ERROR: isCriticalSystemObject not present on Deleted Objects container %s" % obj.dn)
faulty = True
if "isRecycled" in obj:
self.report("ERROR: isRecycled present on Deleted Objects container %s" % obj.dn)
faulty = True
if "isDeleted" in obj and obj['isDeleted'][0].upper() == 'FALSE':
self.report("ERROR: isDeleted not set on Deleted Objects container %s" % obj.dn)
faulty = True
if "objectClass" not in obj or (len(obj['objectClass']) != 2 or
obj['objectClass'][0] != 'top' or
obj['objectClass'][1] != 'container'):
self.report("ERROR: objectClass incorrectly set on Deleted Objects container %s" % obj.dn)
faulty = True
if "systemFlags" not in obj or obj['systemFlags'][0] != '-1946157056':
self.report("ERROR: systemFlags incorrectly set on Deleted Objects container %s" % obj.dn)
faulty = True
return faulty
def err_deleted_deleted_objects(self, obj):
nmsg = ldb.Message()
nmsg.dn = dn = obj.dn
if "description" not in obj:
nmsg["description"] = ldb.MessageElement("Container for deleted objects", ldb.FLAG_MOD_REPLACE, "description")
if "showInAdvancedViewOnly" not in obj:
nmsg["showInAdvancedViewOnly"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "showInAdvancedViewOnly")
if "objectCategory" not in obj:
nmsg["objectCategory"] = ldb.MessageElement("CN=Container,%s" % self.schema_dn, ldb.FLAG_MOD_REPLACE, "objectCategory")
if "isCriticalSystemObject" not in obj:
nmsg["isCriticalSystemObject"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isCriticalSystemObject")
if "isRecycled" in obj:
nmsg["isRecycled"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_DELETE, "isRecycled")
nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
nmsg["systemFlags"] = ldb.MessageElement("-1946157056", ldb.FLAG_MOD_REPLACE, "systemFlags")
nmsg["objectClass"] = ldb.MessageElement(["top", "container"], ldb.FLAG_MOD_REPLACE, "objectClass")
if not self.confirm_all('Fix Deleted Objects container %s by restoring default attributes?'
% (dn), 'fix_deleted_deleted_objects'):
self.report('Not fixing missing/incorrect attributes on %s\n' % (dn))
return
if self.do_modify(nmsg, ["relax:0"],
"Failed to fix Deleted Objects container %s" % dn):
self.report("Fixed Deleted Objects container '%s'\n" % (dn))
def err_replica_locations(self, obj, cross_ref, attr):
nmsg = ldb.Message()
nmsg.dn = cross_ref
target = self.samdb.get_dsServiceName()
if self.samdb.am_rodc():
self.report('Not fixing %s for the RODC' % (attr, obj.dn))
return
if not self.confirm_all('Add yourself to the replica locations for %s?'
% (obj.dn), 'fix_replica_locations'):
self.report('Not fixing missing/incorrect attributes on %s\n' % (obj.dn))
return
nmsg[attr] = ldb.MessageElement(target, ldb.FLAG_MOD_ADD, attr)
if self.do_modify(nmsg, [], "Failed to add %s for %s" % (attr, obj.dn)):
self.report("Fixed %s for %s" % (attr, obj.dn))
def is_fsmo_role(self, dn):
if dn == self.samdb.domain_dn:
return True
if dn == self.infrastructure_dn:
return True
if dn == self.naming_dn:
return True
if dn == self.schema_dn:
return True
if dn == self.rid_dn:
return True
return False
def calculate_instancetype(self, dn):
instancetype = 0
nc_root = self.samdb.get_nc_root(dn)
if dn == nc_root:
instancetype |= dsdb.INSTANCE_TYPE_IS_NC_HEAD
try:
self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE, attrs=[], controls=["show_recycled:1"])
except ldb.LdbError, (enum, estr):
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
else:
instancetype |= dsdb.INSTANCE_TYPE_NC_ABOVE
if self.write_ncs is not None and str(nc_root) in self.write_ncs:
instancetype |= dsdb.INSTANCE_TYPE_WRITE
return instancetype
def get_wellknown_sd(self, dn):
for [sd_dn, descriptor_fn] in self.wellknown_sds:
if dn == sd_dn:
domain_sid = security.dom_sid(self.samdb.get_domain_sid())
return ndr_unpack(security.descriptor,
descriptor_fn(domain_sid,
name_map=self.name_map))
raise KeyError
def check_object(self, dn, attrs=['*']):
'''check one object'''
if self.verbose:
self.report("Checking object %s" % dn)
# If we modify the pass-by-reference attrs variable, then we get a
# replPropertyMetadata for every object that we check.
attrs = list(attrs)
if "dn" in map(str.lower, attrs):
attrs.append("name")
if "distinguishedname" in map(str.lower, attrs):
attrs.append("name")
if str(dn.get_rdn_name()).lower() in map(str.lower, attrs):
attrs.append("name")
if 'name' in map(str.lower, attrs):
attrs.append(dn.get_rdn_name())
attrs.append("isDeleted")
attrs.append("systemFlags")
if '*' in attrs:
attrs.append("replPropertyMetaData")
else:
attrs.append("objectGUID")
try:
sd_flags = 0
sd_flags |= security.SECINFO_OWNER
sd_flags |= security.SECINFO_GROUP
sd_flags |= security.SECINFO_DACL
sd_flags |= security.SECINFO_SACL
res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE,
controls=[
"extended_dn:1:1",
"show_recycled:1",
"show_deleted:1",
"sd_flags:1:%d" % sd_flags,
"reveal_internals:0",
],
attrs=attrs)
except ldb.LdbError, (enum, estr):
if enum == ldb.ERR_NO_SUCH_OBJECT:
if self.in_transaction:
self.report("ERROR: Object %s disappeared during check" % dn)
return 1
return 0
raise
if len(res) != 1:
self.report("ERROR: Object %s failed to load during check" % dn)
return 1
obj = res[0]
error_count = 0
set_attrs_from_md = set()
set_attrs_seen = set()
got_repl_property_meta_data = False
got_objectclass = False
nc_dn = self.samdb.get_nc_root(obj.dn)
try:
deleted_objects_dn = self.samdb.get_wellknown_dn(nc_dn,
samba.dsdb.DS_GUID_DELETED_OBJECTS_CONTAINER)
except KeyError:
# We have no deleted objects DN for schema, and we check for this above for the other
# NCs
deleted_objects_dn = None
object_rdn_attr = None
object_rdn_val = None
name_val = None
isDeleted = False
systemFlags = 0
for attrname in obj:
if attrname == 'dn' or attrname == "distinguishedName":
continue
if str(attrname).lower() == 'objectclass':
got_objectclass = True
if str(attrname).lower() == "name":
if len(obj[attrname]) != 1:
error_count += 1
self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
(len(obj[attrname]), attrname, str(obj.dn)))
else:
name_val = obj[attrname][0]
if str(attrname).lower() == str(obj.dn.get_rdn_name()).lower():
object_rdn_attr = attrname
if len(obj[attrname]) != 1:
error_count += 1
self.report("ERROR: Not fixing num_values(%d) for '%s' on '%s'" %
(len(obj[attrname]), attrname, str(obj.dn)))
else:
object_rdn_val = obj[attrname][0]
if str(attrname).lower() == 'isdeleted':
if obj[attrname][0] != "FALSE":
isDeleted = True
if str(attrname).lower() == 'systemflags':
systemFlags = int(obj[attrname][0])
if str(attrname).lower() == 'replpropertymetadata':
if self.has_replmetadata_zero_invocationid(dn, obj[attrname]):
error_count += 1
self.err_replmetadata_zero_invocationid(dn, attrname, obj[attrname])
# We don't continue, as we may also have other fixes for this attribute
# based on what other attributes we see.
try:
(set_attrs_from_md, list_attid_from_md, wrong_attids) \
= self.process_metadata(dn, obj[attrname])
except KeyError:
error_count += 1
self.err_replmetadata_unknown_attid(dn, attrname, obj[attrname])
continue
if len(set_attrs_from_md) < len(list_attid_from_md) \
or len(wrong_attids) > 0 \
or sorted(list_attid_from_md) != list_attid_from_md:
error_count +=1
self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
else:
# Here we check that the first attid is 0
# (objectClass).
if list_attid_from_md[0] != 0:
error_count += 1
self.report("ERROR: Not fixing incorrect inital attributeID in '%s' on '%s', it should be objectClass" %
(attrname, str(dn)))
got_repl_property_meta_data = True
continue
if str(attrname).lower() == 'ntsecuritydescriptor':
(sd, sd_broken) = self.process_sd(dn, obj)
if sd_broken is not None:
self.err_wrong_sd(dn, sd, sd_broken)
error_count += 1
continue
if sd.owner_sid is None or sd.group_sid is None:
self.err_missing_sd_owner(dn, sd)
error_count += 1
continue
if self.reset_well_known_acls:
try:
well_known_sd = self.get_wellknown_sd(dn)
except KeyError:
continue
current_sd = ndr_unpack(security.descriptor,
str(obj[attrname][0]))
diff = get_diff_sds(well_known_sd, current_sd, security.dom_sid(self.samdb.get_domain_sid()))
if diff != "":
self.err_wrong_default_sd(dn, well_known_sd, current_sd, diff)
error_count += 1
continue
continue
if str(attrname).lower() == 'objectclass':
normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, obj[attrname])
# Do not consider the attribute incorrect if:
# - The sorted (alphabetically) list is the same, inclding case
# - The first and last elements are the same
#
# This avoids triggering an error due to
# non-determinism in the sort routine in (at least)
# 4.3 and earlier, and the fact that any AUX classes
# in these attributes are also not sorted when
# imported from Windows (they are just in the reverse
# order of last set)
if sorted(normalised) != sorted(obj[attrname]) \
or normalised[0] != obj[attrname][0] \
or normalised[-1] != obj[attrname][-1]:
self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname]))
error_count += 1
continue
if str(attrname).lower() == 'userparameters':
if len(obj[attrname][0]) == 1 and obj[attrname][0][0] == '\x20':
error_count += 1
self.err_short_userParameters(obj, attrname, obj[attrname])
continue
elif obj[attrname][0][:16] == '\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00\x20\x00':
# This is the correct, normal prefix
continue
elif obj[attrname][0][:20] == 'IAAgACAAIAAgACAAIAAg':
# this is the typical prefix from a windows migration
error_count += 1
self.err_base64_userParameters(obj, attrname, obj[attrname])
continue
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':
# This is a prefix that is not in UTF-16 format for the space or munged dialback prefix
error_count += 1
self.err_utf8_userParameters(obj, attrname, obj[attrname])
continue
elif len(obj[attrname][0]) % 2 != 0:
# This is a value that isn't even in length
error_count += 1
self.err_odd_userParameters(obj, attrname, obj[attrname])
continue
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':
# This is a prefix that would happen if a SAMR-written value was replicated from a Samba 4.1 server to a working server
error_count += 1
self.err_doubled_userParameters(obj, attrname, obj[attrname])
continue
if attrname.lower() == 'attributeid' or attrname.lower() == 'governsid':
if obj[attrname][0] in self.attribute_or_class_ids:
error_count += 1
self.report('Error: %s %s on %s already exists as an attributeId or governsId'
% (attrname, obj.dn, obj[attrname][0]))
else:
self.attribute_or_class_ids.add(obj[attrname][0])
# check for empty attributes
for val in obj[attrname]:
if val == '':
self.err_empty_attribute(dn, attrname)
error_count += 1
continue
# get the syntax oid for the attribute, so we can can have
# special handling for some specific attribute types
try:
syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
except Exception, msg:
self.err_unknown_attribute(obj, attrname)
error_count += 1
continue
linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
flag = self.samdb_schema.get_systemFlags_from_lDAPDisplayName(attrname)
if (not flag & dsdb.DS_FLAG_ATTR_NOT_REPLICATED
and not flag & dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED
and not linkID):
set_attrs_seen.add(str(attrname).lower())
if syntax_oid in [ dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_OR_NAME,
dsdb.DSDB_SYNTAX_STRING_DN, ldb.SYNTAX_DN ]:
# it's some form of DN, do specialised checking on those
error_count += self.check_dn(obj, attrname, syntax_oid)
else:
values = set()
# check for incorrectly normalised attributes
for val in obj[attrname]:
values.add(str(val))
normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, [val])
if len(normalised) != 1 or normalised[0] != val:
self.err_normalise_mismatch(dn, attrname, obj[attrname])
error_count += 1
break
if len(obj[attrname]) != len(values):
self.err_duplicate_values(dn, attrname, obj[attrname], list(values))
error_count += 1
break
if str(attrname).lower() == "instancetype":
calculated_instancetype = self.calculate_instancetype(dn)
if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype):
error_count += 1
self.err_wrong_instancetype(obj, calculated_instancetype)
if not got_objectclass and ("*" in attrs or "objectclass" in map(str.lower, attrs)):
error_count += 1
self.err_missing_objectclass(dn)
if ("*" in attrs or "name" in map(str.lower, attrs)):
if name_val is None:
error_count += 1
self.report("ERROR: Not fixing missing 'name' on '%s'" % (str(obj.dn)))
if object_rdn_attr is None:
error_count += 1
self.report("ERROR: Not fixing missing '%s' on '%s'" % (obj.dn.get_rdn_name(), str(obj.dn)))
if name_val is not None:
parent_dn = None
if isDeleted:
if not (systemFlags & samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE):
parent_dn = deleted_objects_dn
if parent_dn is None:
parent_dn = obj.dn.parent()
expected_dn = ldb.Dn(self.samdb, "RDN=RDN,%s" % (parent_dn))
expected_dn.set_component(0, obj.dn.get_rdn_name(), name_val)
if obj.dn == deleted_objects_dn:
expected_dn = obj.dn
if expected_dn != obj.dn:
error_count += 1
self.err_wrong_dn(obj, expected_dn, object_rdn_attr, object_rdn_val, name_val)
elif obj.dn.get_rdn_value() != object_rdn_val:
error_count += 1
self.report("ERROR: Not fixing %s=%r on '%s'" % (object_rdn_attr, object_rdn_val, str(obj.dn)))
show_dn = True
if got_repl_property_meta_data:
if obj.dn == deleted_objects_dn:
isDeletedAttId = 131120
# It's 29/12/9999 at 23:59:59 UTC as specified in MS-ADTS 7.1.1.4.2 Deleted Objects Container
expectedTimeDo = 2650466015990000000
originating = self.get_originating_time(obj["replPropertyMetaData"], isDeletedAttId)
if originating != expectedTimeDo:
if self.confirm_all("Fix isDeleted originating_change_time on '%s'" % str(dn), 'fix_time_metadata'):
nmsg = ldb.Message()
nmsg.dn = dn
nmsg["isDeleted"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isDeleted")
error_count += 1
self.samdb.modify(nmsg, controls=["provision:0"])
else:
self.report("Not fixing isDeleted originating_change_time on '%s'" % str(dn))
for att in set_attrs_seen.difference(set_attrs_from_md):
if show_dn:
self.report("On object %s" % dn)
show_dn = False
error_count += 1
self.report("ERROR: Attribute %s not present in replication metadata" % att)
if not self.confirm_all("Fix missing replPropertyMetaData element '%s'" % att, 'fix_all_metadata'):
self.report("Not fixing missing replPropertyMetaData element '%s'" % att)
continue
self.fix_metadata(dn, att)
if self.is_fsmo_role(dn):
if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
self.err_no_fsmoRoleOwner(obj)
error_count += 1
try:
if dn != self.samdb.get_root_basedn() and str(dn.parent()) not in self.dn_set:
res = self.samdb.search(base=dn.parent(), scope=ldb.SCOPE_BASE,
controls=["show_recycled:1", "show_deleted:1"])
except ldb.LdbError, (enum, estr):
if enum == ldb.ERR_NO_SUCH_OBJECT:
self.err_missing_parent(obj)
error_count += 1
else:
raise
if dn in self.deleted_objects_containers and '*' in attrs:
if self.is_deleted_deleted_objects(obj):
self.err_deleted_deleted_objects(obj)
error_count += 1
for (dns_part, msg) in self.dns_partitions:
if dn == dns_part and 'repsFrom' in obj:
location = "msDS-NC-Replica-Locations"
if self.samdb.am_rodc():
location = "msDS-NC-RO-Replica-Locations"
if location not in msg:
# There are no replica locations!
self.err_replica_locations(obj, msg.dn, location)
error_count += 1
continue
found = False
for loc in msg[location]:
if loc == self.samdb.get_dsServiceName():
found = True
if not found:
# This DC is not in the replica locations
self.err_replica_locations(obj, msg.dn, location)
error_count += 1
if dn == self.server_ref_dn:
# Check we have a valid RID Set
if "*" in attrs or "rIDSetReferences" in attrs:
if "rIDSetReferences" not in obj:
# NO RID SET reference
# We are RID master, allocate it.
error_count += 1
if self.is_rid_master:
# Allocate a RID Set
if self.confirm_all('Allocate the missing RID set for RID master?',
'fix_missing_rid_set_master'):
# We don't have auto-transaction logic on
# extended operations, so we have to do it
# here.
self.samdb.transaction_start()
try:
self.samdb.create_own_rid_set()
except:
self.samdb.transaction_cancel()
raise
self.samdb.transaction_commit()
elif not self.samdb.am_rodc():
self.report("No RID Set found for this server: %s, and we are not the RID Master (so can not self-allocate)" % dn)
# Check some details of our own RID Set
if dn == self.rid_set_dn:
res = self.samdb.search(base=self.rid_set_dn, scope=ldb.SCOPE_BASE,
attrs=["rIDAllocationPool",
"rIDPreviousAllocationPool",
"rIDUsedPool",
"rIDNextRID"])
if "rIDAllocationPool" not in res[0]:
self.report("No rIDAllocationPool found in %s" % dn)
error_count += 1
else:
next_pool = int(res[0]["rIDAllocationPool"][0])
high = (0xFFFFFFFF00000000 & next_pool) >> 32
low = 0x00000000FFFFFFFF & next_pool
if high <= low:
self.report("Invalid RID set %d-%s, %d > %d!" % (low, high, low, high))
error_count += 1
if "rIDNextRID" in res[0]:
next_free_rid = int(res[0]["rIDNextRID"][0])
else:
next_free_rid = 0
if next_free_rid == 0:
next_free_rid = low
else:
next_free_rid += 1
# Check the remainder of this pool for conflicts. If
# ridalloc_allocate_rid() moves to a new pool, this
# will be above high, so we will stop.
while next_free_rid <= high:
sid = "%s-%d" % (self.samdb.get_domain_sid(), next_free_rid)
try:
res = self.samdb.search(base="<SID=%s>" % sid, scope=ldb.SCOPE_BASE,
attrs=[])
except ldb.LdbError, (enum, estr):
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
res = None
if res is not None:
self.report("SID %s for %s conflicts with our current RID set in %s" % (sid, res[0].dn, dn))
error_count += 1
if self.confirm_all('Fix conflict between SID %s and RID pool in %s by allocating a new RID?'
% (sid, dn),
'fix_sid_rid_set_conflict'):
self.samdb.transaction_start()
# This will burn RIDs, which will move
# past the conflict. We then check again
# to see if the new RID conflicts, until
# the end of the current pool. We don't
# look at the next pool to avoid burning
# all RIDs in one go in some strange
# failure case.
try:
while True:
allocated_rid = self.samdb.allocate_rid()
if allocated_rid >= next_free_rid:
next_free_rid = allocated_rid + 1
break
except:
self.samdb.transaction_cancel()
raise
self.samdb.transaction_commit()
else:
break
else:
next_free_rid += 1
return error_count
################################################################
# check special @ROOTDSE attributes
def check_rootdse(self):
'''check the @ROOTDSE special object'''
dn = ldb.Dn(self.samdb, '@ROOTDSE')
if self.verbose:
self.report("Checking object %s" % dn)
res = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE)
if len(res) != 1:
self.report("Object %s disappeared during check" % dn)
return 1
obj = res[0]
error_count = 0
# check that the dsServiceName is in GUID form
if not 'dsServiceName' in obj:
self.report('ERROR: dsServiceName missing in @ROOTDSE')
return error_count+1
if not obj['dsServiceName'][0].startswith('<GUID='):
self.report('ERROR: dsServiceName not in GUID form in @ROOTDSE')
error_count += 1
if not self.confirm('Change dsServiceName to GUID form?'):
return error_count
res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0]),
scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
m = ldb.Message()
m.dn = dn
m['dsServiceName'] = ldb.MessageElement("<GUID=%s>" % guid_str,
ldb.FLAG_MOD_REPLACE, 'dsServiceName')
if self.do_modify(m, [], "Failed to change dsServiceName to GUID form", validate=False):
self.report("Changed dsServiceName to GUID form")
return error_count
###############################################
# re-index the database
def reindex_database(self):
'''re-index the whole database'''
m = ldb.Message()
m.dn = ldb.Dn(self.samdb, "@ATTRIBUTES")
m['add'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_ADD, 'force_reindex')
m['delete'] = ldb.MessageElement('NONE', ldb.FLAG_MOD_DELETE, 'force_reindex')
return self.do_modify(m, [], 're-indexed database', validate=False)
###############################################
# reset @MODULES
def reset_modules(self):
'''reset @MODULES to that needed for current sam.ldb (to read a very old database)'''
m = ldb.Message()
m.dn = ldb.Dn(self.samdb, "@MODULES")
m['@LIST'] = ldb.MessageElement('samba_dsdb', ldb.FLAG_MOD_REPLACE, '@LIST')
return self.do_modify(m, [], 'reset @MODULES on database', validate=False)
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