# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
+from __future__ import print_function
import ldb
import samba
import time
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_old_dn_string_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_all_missing_forward_links = False
+ self.duplicate_link_cache = dict()
+ self.recover_all_forward_links = False
self.fix_rmd_flags = False
self.fix_ntsecuritydescriptor = False
self.fix_ntsecuritydescriptor_owner_group = False
self.name_map = {}
try:
res = samdb.search(base="CN=DnsAdmins,CN=Users,%s" % samdb.domain_dn(), scope=ldb.SCOPE_BASE,
- attrs=["objectSid"])
+ 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):
+ except ldb.LdbError as e5:
+ (enum, estr) = e5.args
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
pass
for nc in self.ncs:
try:
- dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc),
+ dn = self.samdb.get_wellknown_dn(ldb.Dn(self.samdb, nc.decode('utf8')),
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))
+ self.ncs_lacking_deleted_containers.append(ldb.Dn(self.samdb, nc.decode('utf8')))
domaindns_zone = 'DC=DomainDnsZones,%s' % self.samdb.get_default_basedn()
forestdns_zone = 'DC=ForestDnsZones,%s' % self.samdb.get_root_basedn()
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])
+ self.server_ref_dn = ldb.Dn(self.samdb, res[0]['serverReference'][0].decode('utf8'))
# 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])
+ self.rid_set_dn = ldb.Dn(self.samdb, res[0]['rIDSetReferences'][0].decode('utf8'))
else:
self.rid_set_dn = None
+ self.compatibleFeatures = []
+ self.requiredFeatures = []
+
+ try:
+ res = self.samdb.search(scope=ldb.SCOPE_BASE,
+ base="@SAMBA_DSDB",
+ attrs=["compatibleFeatures",
+ "requiredFeatures"])
+ if "compatibleFeatures" in res[0]:
+ self.compatibleFeatures = res[0]["compatibleFeatures"]
+ if "requiredFeatures" in res[0]:
+ self.requiredFeatures = res[0]["requiredFeatures"]
+ except ldb.LdbError as e6:
+ (enum, estr) = e6.args
+ if enum != ldb.ERR_NO_SUCH_OBJECT:
+ raise
+ pass
+
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)
"CN=Deleted Objects\\0ACNF:%s" % str(misc.GUID(guid)))
conflict_dn.add_base(nc)
- except ldb.LdbError, (enum, estr):
+ except ldb.LdbError as e2:
+ (enum, estr) = e2.args
if enum == ldb.ERR_NO_SUCH_OBJECT:
pass
else:
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):
+ except ldb.LdbError as e1:
+ (enum, estr) = e1.args
self.report("Couldn't move old Deleted Objects placeholder: %s to %s: %s" % (dn, conflict_dn, estr))
return 1
listwko = []
proposed_objectguid = None
for o in wko:
- dsdb_dn = dsdb_Dn(self.samdb, o, dsdb.DSDB_SYNTAX_BINARY_DN)
+ dsdb_dn = dsdb_Dn(self.samdb, o.decode('utf8'), 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
try:
controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
self.samdb.delete(dn, controls=controls)
- except Exception, err:
+ except Exception as err:
if self.in_transaction:
raise CommandError("%s : %s" % (msg, err))
self.report("%s : %s" % (msg, err))
try:
controls = controls + ["local_oid:%s:0" % dsdb.DSDB_CONTROL_DBCHECK]
self.samdb.modify(m, controls=controls, validate=validate)
- except Exception, err:
+ except Exception as err:
if self.in_transaction:
raise CommandError("%s : %s" % (msg, err))
self.report("%s : %s" % (msg, err))
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:
+ except Exception as err:
if self.in_transaction:
raise CommandError("%s : %s" % (msg, err))
self.report("%s : %s" % (msg, err))
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)
+ attrname)
if self.do_modify(m, ["relax:0", "show_recycled:1"],
"Failed to normalise attribute %s" % attrname,
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:
+ 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 self.confirm_all('Remove DN link?', 'remove_implausible_deleted_DN_links'):
self.report("Not removing")
return
else:
+ self.report("WARNING: 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 self.confirm_all('Remove stale DN link?', 'remove_plausible_deleted_DN_links'):
self.report("Not removing")
return
# 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
+
+ linkID, reverse_link_name \
+ = self.get_attr_linkID_and_reverse_name(attrname)
+ if reverse_link_name is not None:
+ self.report("WARNING: no target object found for GUID "
+ "component for one-way forward link "
+ "%s in object "
+ "%s - %s" % (attrname, dn, val))
+ self.report("Not removing dangling forward link")
+ return 0
+
+ nc_root = self.samdb.get_nc_root(dn)
+ target_nc_root = self.samdb.get_nc_root(dsdb_dn.dn)
+ if nc_root != target_nc_root:
+ # We don't bump the error count as Samba produces these
+ # in normal operation
+ self.report("WARNING: no target object found for GUID "
+ "component for cross-partition link "
+ "%s in object "
+ "%s - %s" % (attrname, dn, val))
+ self.report("Not removing dangling one-way "
+ "cross-partition link "
+ "(we might be mid-replication)")
+ return 0
+
+ # Due to our link handling one-way links pointing to
+ # missing objects are plausible.
+ #
+ # We don't bump the error count as Samba produces these
+ # in normal operation
+ self.report("WARNING: no target object found for GUID "
+ "component for DN value %s in object "
+ "%s - %s" % (attrname, dn, val))
+ self.err_deleted_dn(dn, attrname, val,
+ dsdb_dn, dsdb_dn, True)
+ return 0
+
+ # We bump the error count here, as we should have deleted this
+ self.report("ERROR: no target object found for GUID "
+ "component for link %s in object "
+ "%s - %s" % (attrname, dn, val))
self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn, False)
+ return 1
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"]
+ 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):
+ except ldb.LdbError as e7:
+ (enum, estr) = e7.args
self.report("unable to find object for DN %s - (%s)" % (dsdb_dn.dn, estr))
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
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"]
+ 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)
"Failed to fix %s on attribute %s" % (errstr, attrname)):
self.report("Fixed %s on attribute %s" % (errstr, attrname))
+ def err_dn_string_component_old(self, dn, attrname, val, dsdb_dn, correct_dn):
+ """handle a DN string being incorrect"""
+ self.report("NOTE: old (due to rename or delete) DN string component for %s in object %s - %s" % (attrname, dn, val))
+ dsdb_dn.dn = correct_dn
+
+ if not self.confirm_all('Change DN to %s?' % str(dsdb_dn),
+ 'fix_all_old_dn_string_component_mismatch'):
+ self.report("Not fixing old string component")
+ 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",
+ "local_oid:%s:1" % dsdb.DSDB_CONTROL_DBCHECK_FIX_LINK_DN_NAME],
+ "Failed to fix old DN string on attribute %s" % (attrname)):
+ self.report("Fixed old DN string on attribute %s" % (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))
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"],
+ m.dn = target_dn
+ m['new_value'] = ldb.MessageElement(val, ldb.FLAG_MOD_ADD, backlink_name)
+ if self.do_modify(m, ["show_recycled:1", "relax:0"],
"Failed to fix missing backlink %s" % backlink_name):
self.report("Fixed missing backlink %s" % (backlink_name))
"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):
+ def err_orphaned_backlink(self, obj_dn, backlink_attr, backlink_val,
+ target_dn, forward_attr, forward_syntax,
+ check_duplicates=True):
'''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)
+ if check_duplicates is True and self.has_duplicate_links(target_dn, forward_attr, forward_syntax):
+ self.report("WARNING: Keep orphaned backlink attribute " +
+ "'%s' in '%s' for link '%s' in '%s'" % (
+ backlink_attr, obj_dn, forward_attr, target_dn))
+ return
+ self.report("ERROR: orphaned backlink attribute '%s' in %s for link %s in %s" % (backlink_attr, obj_dn, forward_attr, target_dn))
+ if not self.confirm_all('Remove orphaned backlink %s' % backlink_attr, 'fix_all_orphaned_backlinks'):
+ self.report("Not removing orphaned backlink %s" % backlink_attr)
return
m = ldb.Message()
- m.dn = obj.dn
- m['value'] = ldb.MessageElement(val, ldb.FLAG_MOD_DELETE, attrname)
+ m.dn = obj_dn
+ m['value'] = ldb.MessageElement(backlink_val, ldb.FLAG_MOD_DELETE, backlink_attr)
if self.do_modify(m, ["show_recycled:1", "relax:0"],
- "Failed to fix orphaned backlink %s" % attrname):
- self.report("Fixed orphaned backlink %s" % (attrname))
+ "Failed to fix orphaned backlink %s" % backlink_attr):
+ self.report("Fixed orphaned backlink %s" % (backlink_attr))
+
+ def err_recover_forward_links(self, obj, forward_attr, forward_vals):
+ '''handle a duplicate links value'''
+
+ self.report("RECHECK: 'Missing/Duplicate/Correct link' lines above for attribute '%s' in '%s'" % (forward_attr, obj.dn))
+
+ if not self.confirm_all("Commit fixes for (missing/duplicate) forward links in attribute '%s'" % forward_attr, 'recover_all_forward_links'):
+ self.report("Not fixing corrupted (missing/duplicate) forward links in attribute '%s' of '%s'" % (
+ forward_attr, obj.dn))
+ return
+ m = ldb.Message()
+ m.dn = obj.dn
+ m['value'] = ldb.MessageElement(forward_vals, ldb.FLAG_MOD_REPLACE, forward_attr)
+ if self.do_modify(m, ["local_oid:%s:1" % dsdb.DSDB_CONTROL_DBCHECK_FIX_DUPLICATE_LINKS],
+ "Failed to fix duplicate links in attribute '%s'" % forward_attr):
+ self.report("Fixed duplicate links in attribute '%s'" % (forward_attr))
+ duplicate_cache_key = "%s:%s" % (str(obj.dn), forward_attr)
+ assert duplicate_cache_key in self.duplicate_link_cache
+ self.duplicate_link_cache[duplicate_cache_key] = False
def err_no_fsmoRoleOwner(self, obj):
'''handle a missing fSMORoleOwner'''
keep_transaction = False
self.samdb.transaction_start()
try:
- nc_root = self.samdb.get_nc_root(obj.dn);
+ 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)
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)
+ dsdb_dn = dsdb_Dn(self.samdb, val.decode('utf8'), syntax_oid)
guid2 = dsdb_dn.dn.get_extended_component("GUID")
if guid == guid2:
return dsdb_dn
return None
+ def check_duplicate_links(self, obj, forward_attr, forward_syntax, forward_linkID, backlink_attr):
+ '''check a linked values for duplicate forward links'''
+ error_count = 0
+
+ duplicate_dict = dict()
+ unique_dict = dict()
+
+ # Only forward links can have this problem
+ if forward_linkID & 1:
+ # If we got the reverse, skip it
+ return (error_count, duplicate_dict, unique_dict)
+
+ if backlink_attr is None:
+ return (error_count, duplicate_dict, unique_dict)
+
+ duplicate_cache_key = "%s:%s" % (str(obj.dn), forward_attr)
+ if duplicate_cache_key not in self.duplicate_link_cache:
+ self.duplicate_link_cache[duplicate_cache_key] = False
+
+ for val in obj[forward_attr]:
+ dsdb_dn = dsdb_Dn(self.samdb, val.decode('utf8'), forward_syntax)
+
+ # all DNs should have a GUID component
+ guid = dsdb_dn.dn.get_extended_component("GUID")
+ if guid is None:
+ continue
+ guidstr = str(misc.GUID(guid))
+ keystr = guidstr + dsdb_dn.prefix
+ if keystr not in unique_dict:
+ unique_dict[keystr] = dsdb_dn
+ continue
+ error_count += 1
+ if keystr not in duplicate_dict:
+ duplicate_dict[keystr] = dict()
+ duplicate_dict[keystr]["keep"] = None
+ duplicate_dict[keystr]["delete"] = list()
+
+ # Now check for the highest RMD_VERSION
+ v1 = int(unique_dict[keystr].dn.get_extended_component("RMD_VERSION"))
+ v2 = int(dsdb_dn.dn.get_extended_component("RMD_VERSION"))
+ if v1 > v2:
+ duplicate_dict[keystr]["keep"] = unique_dict[keystr]
+ duplicate_dict[keystr]["delete"].append(dsdb_dn)
+ continue
+ if v1 < v2:
+ duplicate_dict[keystr]["keep"] = dsdb_dn
+ duplicate_dict[keystr]["delete"].append(unique_dict[keystr])
+ unique_dict[keystr] = dsdb_dn
+ continue
+ # Fallback to the highest RMD_LOCAL_USN
+ u1 = int(unique_dict[keystr].dn.get_extended_component("RMD_LOCAL_USN"))
+ u2 = int(dsdb_dn.dn.get_extended_component("RMD_LOCAL_USN"))
+ if u1 >= u2:
+ duplicate_dict[keystr]["keep"] = unique_dict[keystr]
+ duplicate_dict[keystr]["delete"].append(dsdb_dn)
+ continue
+ duplicate_dict[keystr]["keep"] = dsdb_dn
+ duplicate_dict[keystr]["delete"].append(unique_dict[keystr])
+ unique_dict[keystr] = dsdb_dn
+
+ if error_count != 0:
+ self.duplicate_link_cache[duplicate_cache_key] = True
+
+ return (error_count, duplicate_dict, unique_dict)
+
+ def has_duplicate_links(self, dn, forward_attr, forward_syntax):
+ '''check a linked values for duplicate forward links'''
+ error_count = 0
+
+ duplicate_cache_key = "%s:%s" % (str(dn), forward_attr)
+ if duplicate_cache_key in self.duplicate_link_cache:
+ return self.duplicate_link_cache[duplicate_cache_key]
+
+ forward_linkID, backlink_attr = self.get_attr_linkID_and_reverse_name(forward_attr)
+
+ attrs = [forward_attr]
+ controls = ["extended_dn:1:1", "reveal_internals:0"]
+
+ # check its the right GUID
+ try:
+ res = self.samdb.search(base=str(dn), scope=ldb.SCOPE_BASE,
+ attrs=attrs, controls=controls)
+ except ldb.LdbError as e8:
+ (enum, estr) = e8.args
+ if enum != ldb.ERR_NO_SUCH_OBJECT:
+ raise
+
+ return False
+
+ obj = res[0]
+ error_count, duplicate_dict, unique_dict = \
+ self.check_duplicate_links(obj, forward_attr, forward_syntax, forward_linkID, backlink_attr)
+
+ if duplicate_cache_key in self.duplicate_link_cache:
+ return self.duplicate_link_cache[duplicate_cache_key]
+
+ return False
+
+ def find_missing_forward_links_from_backlinks(self, obj,
+ forward_attr,
+ forward_syntax,
+ backlink_attr,
+ forward_unique_dict):
+ '''Find all backlinks linking to obj_guid_str not already in forward_unique_dict'''
+ missing_forward_links = []
+ error_count = 0
+
+ if backlink_attr is None:
+ return (missing_forward_links, error_count)
+
+ if forward_syntax != ldb.SYNTAX_DN:
+ self.report("Not checking for missing forward links for syntax: %s",
+ forward_syntax)
+ return (missing_forward_links, error_count)
+
+ if "sortedLinks" in self.compatibleFeatures:
+ self.report("Not checking for missing forward links because the db " +
+ "has the sortedLinks feature")
+ return (missing_forward_links, error_count)
+
+ try:
+ obj_guid = obj['objectGUID'][0]
+ obj_guid_str = str(ndr_unpack(misc.GUID, obj_guid))
+ filter = "(%s=<GUID=%s>)" % (backlink_attr, obj_guid_str)
+
+ res = self.samdb.search(expression=filter,
+ scope=ldb.SCOPE_SUBTREE, attrs=["objectGUID"],
+ controls=["extended_dn:1:1",
+ "search_options:1:2",
+ "paged_results:1:1000"])
+ except ldb.LdbError as e9:
+ (enum, estr) = e9.args
+ raise
+
+ for r in res:
+ target_dn = dsdb_Dn(self.samdb, r.dn.extended_str(), forward_syntax)
+
+ guid = target_dn.dn.get_extended_component("GUID")
+ guidstr = str(misc.GUID(guid))
+ if guidstr in forward_unique_dict:
+ continue
+
+ # A valid forward link looks like this:
+ #
+ # <GUID=9f92d30a-fc23-11e4-a5f6-30be15454808>;
+ # <RMD_ADDTIME=131607546230000000>;
+ # <RMD_CHANGETIME=131607546230000000>;
+ # <RMD_FLAGS=0>;
+ # <RMD_INVOCID=4e4496a3-7fb8-4f97-8a33-d238db8b5e2d>;
+ # <RMD_LOCAL_USN=3765>;
+ # <RMD_ORIGINATING_USN=3765>;
+ # <RMD_VERSION=1>;
+ # <SID=S-1-5-21-4177067393-1453636373-93818738-1124>;
+ # CN=unsorted-u8,CN=Users,DC=release-4-5-0-pre1,DC=samba,DC=corp
+ #
+ # Note that versions older than Samba 4.8 create
+ # links with RMD_VERSION=0.
+ #
+ # Try to get the local_usn and time from objectClass
+ # if possible and fallback to any other one.
+ repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
+ obj['replPropertyMetadata'][0])
+ for o in repl.ctr.array:
+ local_usn = o.local_usn
+ t = o.originating_change_time
+ if o.attid == drsuapi.DRSUAPI_ATTID_objectClass:
+ break
+
+ # We use a magic invocationID for restoring missing
+ # forward links to recover from bug #13228.
+ # This should allow some more future magic to fix the
+ # problem.
+ #
+ # It also means it looses the conflict resolution
+ # against almost every real invocation, if the
+ # version is also 0.
+ originating_invocid = misc.GUID("ffffffff-4700-4700-4700-000000b13228")
+ originating_usn = 1
+
+ rmd_addtime = t
+ rmd_changetime = t
+ rmd_flags = 0
+ rmd_invocid = originating_invocid
+ rmd_originating_usn = originating_usn
+ rmd_local_usn = local_usn
+ rmd_version = 0
+
+ target_dn.dn.set_extended_component("RMD_ADDTIME", str(rmd_addtime))
+ target_dn.dn.set_extended_component("RMD_CHANGETIME", str(rmd_changetime))
+ target_dn.dn.set_extended_component("RMD_FLAGS", str(rmd_flags))
+ target_dn.dn.set_extended_component("RMD_INVOCID", ndr_pack(rmd_invocid))
+ target_dn.dn.set_extended_component("RMD_ORIGINATING_USN", str(rmd_originating_usn))
+ target_dn.dn.set_extended_component("RMD_LOCAL_USN", str(rmd_local_usn))
+ target_dn.dn.set_extended_component("RMD_VERSION", str(rmd_version))
+
+ error_count += 1
+ missing_forward_links.append(target_dn)
+
+ return (missing_forward_links, error_count)
+
def check_dn(self, obj, attrname, syntax_oid):
'''check a DN attribute for correctness'''
error_count = 0
obj_guid = obj['objectGUID'][0]
+ linkID, reverse_link_name = self.get_attr_linkID_and_reverse_name(attrname)
+ if reverse_link_name is not None:
+ reverse_syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(reverse_link_name)
+ else:
+ reverse_syntax_oid = None
+
+ error_count, duplicate_dict, unique_dict = \
+ self.check_duplicate_links(obj, attrname, syntax_oid, linkID, reverse_link_name)
+
+ if len(duplicate_dict) != 0:
+
+ missing_forward_links, missing_error_count = \
+ self.find_missing_forward_links_from_backlinks(obj,
+ attrname, syntax_oid,
+ reverse_link_name,
+ unique_dict)
+ error_count += missing_error_count
+
+ forward_links = [dn for dn in unique_dict.values()]
+
+ if missing_error_count != 0:
+ self.report("ERROR: Missing and duplicate forward link values for attribute '%s' in '%s'" % (
+ attrname, obj.dn))
+ else:
+ self.report("ERROR: Duplicate forward link values for attribute '%s' in '%s'" % (attrname, obj.dn))
+ for m in missing_forward_links:
+ self.report("Missing link '%s'" % (m))
+ if not self.confirm_all("Schedule readding missing forward link for attribute %s" % attrname,
+ 'fix_all_missing_forward_links'):
+ self.err_orphaned_backlink(m.dn, reverse_link_name,
+ obj.dn.extended_str(), obj.dn,
+ attrname, syntax_oid,
+ check_duplicates=False)
+ continue
+ forward_links += [m]
+ for keystr in duplicate_dict.keys():
+ d = duplicate_dict[keystr]
+ for dd in d["delete"]:
+ self.report("Duplicate link '%s'" % dd)
+ self.report("Correct link '%s'" % d["keep"])
+
+ # We now construct the sorted dn values.
+ # They're sorted by the objectGUID of the target
+ # See dsdb_Dn.__cmp__()
+ vals = [str(dn) for dn in sorted(forward_links)]
+ self.err_recover_forward_links(obj, attrname, vals)
+ # We should continue with the fixed values
+ obj[attrname] = ldb.MessageElement(vals, 0, attrname)
+
for val in obj[attrname]:
- dsdb_dn = dsdb_Dn(self.samdb, val, syntax_oid)
+ dsdb_dn = dsdb_Dn(self.samdb, val.decode('utf8'), 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")
+ "missing GUID")
continue
guidstr = str(misc.GUID(guid))
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)
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))
+ ])
+ except ldb.LdbError as e3:
+ (enum, estr) = e3.args
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
- self.err_missing_target_dn_or_GUID(obj.dn, attrname, val, dsdb_dn)
+ # We don't always want to
+ error_count += self.err_missing_target_dn_or_GUID(obj.dn,
+ attrname,
+ val,
+ dsdb_dn)
continue
if fixing_msDS_HasInstantiatedNCs:
dsdb_dn.binary = "%08X" % int(res[0]['instanceType'][0])
if str(dsdb_dn) != val:
- error_count +=1
+ error_count += 1
self.err_incorrect_binary_dn(obj.dn, attrname, val, dsdb_dn, "incorrect instanceType part of Binary DN")
continue
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
# 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")
+ rmd_flags = 0
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
+ # assert the DN matches in string form, where a reverse
+ # link exists, otherwise (below) offer to fix it as a non-error.
+ # The string form is essentially only kept for forensics,
+ # as we always re-resolve by GUID in normal operations.
+ if not rmd_flags & 1 and reverse_link_name is not None:
+ 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
res[0].dn, "SID")
continue
+ # Only for non-links, not even forward-only links
+ # (otherwise this breaks repl_meta_data):
+ #
+ # Now we have checked the GUID and SID, offer to fix old
+ # DN strings as a non-error (DNs, not links so no
+ # backlink). Samba does not maintain this string
+ # otherwise, so we don't increment error_count.
+ if reverse_link_name is None:
+ if linkID == 0 and str(res[0].dn) != str(dsdb_dn.dn):
+ # Pass in the old/bad DN without the <GUID=...> part,
+ # otherwise the LDB code will correct it on the way through
+ # (Note: we still want to preserve the DSDB DN prefix in the
+ # case of binary DNs)
+ bad_dn = dsdb_dn.prefix + dsdb_dn.dn.get_linearized()
+ self.err_dn_string_component_old(obj.dn, attrname, bad_dn,
+ dsdb_dn, res[0].dn)
+ 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)
+ match_count = 0
+ if reverse_link_name in res[0]:
+ for v in res[0][reverse_link_name]:
+ v_dn = dsdb_Dn(self.samdb, v.decode('utf8'))
+ v_guid = v_dn.dn.get_extended_component("GUID")
+ v_blob = v_dn.dn.get_extended_component("RMD_FLAGS")
+ v_rmd_flags = 0
+ if v_blob is not None:
+ v_rmd_flags = int(v_blob)
+ if v_rmd_flags & 1:
+ continue
+ if v_guid == obj_guid:
+ match_count += 1
+
+ if match_count != 1:
+ if syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN or reverse_syntax_oid == dsdb.DSDB_SYNTAX_BINARY_DN:
+ if not linkID & 1:
+ # Forward binary multi-valued linked attribute
+ forward_count = 0
+ for w in obj[attrname]:
+ w_guid = dsdb_Dn(self.samdb, w.decode('utf8')).dn.get_extended_component("GUID")
+ if w_guid == guid:
+ forward_count += 1
+
+ if match_count == forward_count:
+ continue
+ expected_count = 0
+ for v in obj[attrname]:
+ v_dn = dsdb_Dn(self.samdb, v.decode('utf8'))
+ v_guid = v_dn.dn.get_extended_component("GUID")
+ v_blob = v_dn.dn.get_extended_component("RMD_FLAGS")
+ v_rmd_flags = 0
+ if v_blob is not None:
+ v_rmd_flags = int(v_blob)
+ if v_rmd_flags & 1:
+ continue
+ if v_guid == guid:
+ expected_count += 1
+
+ if match_count == expected_count:
+ continue
+
+ diff_count = expected_count - match_count
+
+ if linkID & 1:
+ # If there's a backward link on binary multi-valued linked attribute,
+ # let the check on the forward link remedy the value.
+ # UNLESS, there is no forward link detected.
+ if match_count == 0:
+ error_count += 1
+ self.err_orphaned_backlink(obj.dn, attrname,
+ val, dsdb_dn.dn,
+ reverse_link_name,
+ reverse_syntax_oid)
continue
+ # Only warn here and let the forward link logic fix it.
+ self.report("WARNING: Link (back) mismatch for '%s' (%d) on '%s' to '%s' (%d) on '%s'" % (
+ attrname, expected_count, str(obj.dn),
+ reverse_link_name, match_count, str(dsdb_dn.dn)))
+ continue
+ assert not target_is_deleted
+ self.report("ERROR: Link (forward) mismatch for '%s' (%d) on '%s' to '%s' (%d) on '%s'" % (
+ attrname, expected_count, str(obj.dn),
+ reverse_link_name, match_count, str(dsdb_dn.dn)))
+ # Loop until the difference between the forward and
+ # the backward links is resolved.
+ while diff_count != 0:
+ error_count += 1
+ if diff_count > 0:
+ if match_count > 0 or diff_count > 1:
+ # TODO no method to fix these right now
+ self.report("ERROR: Can't fix missing "
+ "multi-valued backlinks on %s" % str(dsdb_dn.dn))
+ break
+ self.err_missing_backlink(obj, attrname,
+ obj.dn.extended_str(),
+ reverse_link_name,
+ dsdb_dn.dn)
+ diff_count -= 1
+ else:
+ self.err_orphaned_backlink(res[0].dn, reverse_link_name,
+ obj.dn.extended_str(), obj.dn,
+ attrname, syntax_oid)
+ diff_count += 1
return error_count
-
def get_originating_time(self, val, attid):
'''Read metadata properties and return the originating time for
a given attributeId.
return (set_att, list_attid, wrong_attids)
-
- def fix_metadata(self, dn, attr):
+ def fix_metadata(self, obj, 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"])
+ guid_str = str(ndr_unpack(misc.GUID, obj['objectGUID'][0]))
+ dn = ldb.Dn(self.samdb, "<GUID=%s>" % guid_str)
+ 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
cls = None
try:
cls = obj["objectClass"][-1]
- except KeyError, e:
+ except KeyError as e:
pass
if cls is None:
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))
return found
-
def err_replmetadata_zero_invocationid(self, dn, attr, repl_meta_data):
repl = ndr_unpack(drsblobs.replPropertyMetaDataBlob,
str(repl_meta_data))
"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))
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))
# 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)
+ 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))
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):
+ "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:
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):
+ except ldb.LdbError as e4:
+ (enum, estr) = e4.args
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
else:
attrs.append(dn.get_rdn_name())
attrs.append("isDeleted")
attrs.append("systemFlags")
+ need_replPropertyMetaData = False
if '*' in attrs:
- attrs.append("replPropertyMetaData")
+ need_replPropertyMetaData = True
else:
- attrs.append("objectGUID")
+ for a in attrs:
+ linkID, _ = self.get_attr_linkID_and_reverse_name(a)
+ if linkID == 0:
+ continue
+ if linkID & 1:
+ continue
+ need_replPropertyMetaData = True
+ break
+ if need_replPropertyMetaData:
+ attrs.append("replPropertyMetaData")
+ attrs.append("objectGUID")
try:
sd_flags = 0
"reveal_internals:0",
],
attrs=attrs)
- except ldb.LdbError, (enum, estr):
+ except ldb.LdbError as e10:
+ (enum, estr) = e10.args
if enum == ldb.ERR_NO_SUCH_OBJECT:
if self.in_transaction:
self.report("ERROR: Object %s disappeared during check" % dn)
# NCs
deleted_objects_dn = None
-
object_rdn_attr = None
object_rdn_val = None
name_val = None
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
+ error_count += 1
self.err_replmetadata_incorrect_attid(dn, attrname, obj[attrname], wrong_attids)
else:
# special handling for some specific attribute types
try:
syntax_oid = self.samdb_schema.get_syntax_oid_from_lDAPDisplayName(attrname)
- except Exception, msg:
+ except Exception as msg:
self.err_unknown_attribute(obj, attrname)
error_count += 1
continue
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 ]:
+ 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:
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)
+ self.fix_metadata(obj, att)
if self.is_fsmo_role(dn):
if "fSMORoleOwner" not in obj and ("*" in attrs or "fsmoroleowner" in map(str.lower, attrs)):
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):
+ except ldb.LdbError as e11:
+ (enum, estr) = e11.args
if enum == ldb.ERR_NO_SUCH_OBJECT:
self.err_missing_parent(obj)
error_count += 1
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,
try:
res = self.samdb.search(base="<SID=%s>" % sid, scope=ldb.SCOPE_BASE,
attrs=[])
- except ldb.LdbError, (enum, estr):
+ except ldb.LdbError as e:
+ (enum, estr) = e.args
if enum != ldb.ERR_NO_SUCH_OBJECT:
raise
res = None
else:
next_free_rid += 1
-
return error_count
################################################################
# check that the dsServiceName is in GUID form
if not 'dsServiceName' in obj:
self.report('ERROR: dsServiceName missing in @ROOTDSE')
- return error_count+1
+ 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]),
+ res = self.samdb.search(base=ldb.Dn(self.samdb, obj['dsServiceName'][0].decode('utf8')),
scope=ldb.SCOPE_BASE, attrs=['objectGUID'])
guid_str = str(ndr_unpack(misc.GUID, res[0]['objectGUID'][0]))
m = ldb.Message()
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()