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author | Jelmer Vernooij <jelmer@samba.org> | 2012-12-28 15:37:14 +0100 |
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committer | Andrew Bartlett <abartlet@samba.org> | 2013-03-02 03:57:34 +0100 |
commit | 87afc3aee1ea593069322a49355dd8780d99e123 (patch) | |
tree | 8e1ea6678d93b53f21b34c4940b7d5a64e0f5020 /source4/scripting/python/samba/dbchecker.py | |
parent | 80fce353e740c793619005ac102ab07fb5e7d280 (diff) | |
download | samba-87afc3aee1ea593069322a49355dd8780d99e123.tar.gz samba-87afc3aee1ea593069322a49355dd8780d99e123.tar.xz samba-87afc3aee1ea593069322a49355dd8780d99e123.zip |
Move python modules from source4/scripting/python/ to python/.
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sat Mar 2 03:57:34 CET 2013 on sn-devel-104
Diffstat (limited to 'source4/scripting/python/samba/dbchecker.py')
-rw-r--r-- | source4/scripting/python/samba/dbchecker.py | 947 |
1 files changed, 0 insertions, 947 deletions
diff --git a/source4/scripting/python/samba/dbchecker.py b/source4/scripting/python/samba/dbchecker.py deleted file mode 100644 index 06fd82752f7..00000000000 --- a/source4/scripting/python/samba/dbchecker.py +++ /dev/null @@ -1,947 +0,0 @@ -# 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 -from samba import dsdb -from samba import common -from samba.dcerpc import misc -from samba.ndr import ndr_unpack, ndr_pack -from samba.dcerpc import drsblobs -from samba.common import dsdb_Dn -from samba.dcerpc import security - - -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): - 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_DN_GUIDs = False - self.remove_all_deleted_DN_links = False - self.fix_all_target_mismatch = False - self.fix_all_metadata = False - self.fix_time_metadata = False - self.fix_all_missing_backlinks = False - self.fix_all_orphaned_backlinks = False - self.fix_rmd_flags = False - self.fix_ntsecuritydescriptor = False - self.seize_fsmo_role = False - self.move_to_lost_and_found = False - self.fix_instancetype = 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 = samdb.get_dsServiceName() - self.class_schemaIDGUID = {} - - 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 - - - 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 - - for object in res: - 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 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 self.quiet: - return self.yes - if getattr(self, all_attr) == 'NONE': - return False - if getattr(self, all_attr) == 'ALL': - forced = True - else: - forced = self.yes - 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_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: - 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: - self.report("%s : %s" % (msg, err)) - return False - return True - - 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 is_deleted_objects_dn(self, dsdb_dn): - '''see if a dsdb_Dn is the special Deleted Objects DN''' - return dsdb_dn.prefix == "B:32:18E2EA80684F11D2B9AA00C04F79F805:" - - def err_deleted_dn(self, dn, attrname, val, dsdb_dn, correct_dn): - """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 %s" % correct_dn) - if not self.confirm_all('Remove DN link?', 'remove_all_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_DBCHECK], - "Failed to remove deleted DN attribute %s" % attrname): - self.report("Removed deleted DN on attribute %s" % attrname) - - def err_missing_dn_GUID(self, dn, attrname, val, dsdb_dn): - """handle a missing target DN (both GUID and DN string form are missing)""" - # check if its a backlink - linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname) - if (linkID & 1 == 0) and str(dsdb_dn).find('DEL\\0A') == -1: - self.report("Not removing dangling forward link") - return - self.err_deleted_dn(dn, attrname, val, dsdb_dn, dsdb_dn) - - def err_incorrect_dn_GUID(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)) - self.err_missing_dn_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_dn_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_dn_target_mismatch(self, dn, attrname, val, dsdb_dn, correct_dn, errstr): - """handle a DN string being incorrect""" - self.report("ERROR: incorrect 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_target_mismatch'): - 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 incorrect DN string on attribute %s" % attrname): - self.report("Fixed incorrect DN string on attribute %s" % (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_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' % link_name, 'fix_all_orphaned_backlinks'): - self.report("Not removing orphaned backlink %s" % link_name) - 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" % link_name): - self.report("Fixed orphaned backlink %s" % (link_name)) - - 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 = True - 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_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 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 - 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_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn, - "missing GUID") - continue - - guidstr = str(misc.GUID(guid)) - - attrs = ['isDeleted'] - linkID = self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname) - reverse_link_name = self.samdb_schema.get_backlink_from_lDAPDisplayName(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"]) - except ldb.LdbError, (enum, estr): - error_count += 1 - self.err_incorrect_dn_GUID(obj.dn, attrname, val, dsdb_dn, "incorrect GUID") - 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' - - # the target DN is not allowed to be deleted, unless the target DN is the - # special Deleted Objects container - if target_is_deleted and not is_deleted and not self.is_deleted_objects_dn(dsdb_dn): - error_count += 1 - self.err_deleted_dn(obj.dn, attrname, val, dsdb_dn, res[0].dn) - continue - - # check the DN matches in string form - if res[0].dn.extended_str() != dsdb_dn.dn.extended_str(): - error_count += 1 - self.err_dn_target_mismatch(obj.dn, attrname, val, dsdb_dn, - res[0].dn, "incorrect string version of DN") - continue - - if is_deleted and not target_is_deleted and reverse_link_name is not None: - revealed_dn = self.find_revealed_link(obj.dn, attrname, guid) - rmd_flags = revealed_dn.dn.get_extended_component("RMD_FLAGS") - if rmd_flags is not None and (int(rmd_flags) & 1) == 0: - # the RMD_FLAGS for this link should be 1, as the target is deleted - self.err_incorrect_rmd_flags(obj, attrname, revealed_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]: - if v == obj.dn.extended_str(): - match_count += 1 - if match_count != 1: - error_count += 1 - if linkID & 1: - self.err_orphaned_backlink(obj, attrname, val, reverse_link_name, dsdb_dn.dn) - else: - self.err_missing_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, val): - '''Read metadata properties and list attributes in it''' - - list_att = [] - - 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) - list_att.append(att.lower()) - - return list_att - - - 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 replPropertyMetaData elements for a single attribute for a - object. This is used to fix missing replPropertyMetaData elements''' - 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 metadata for attribute %s" % sd_attr): - self.report("Fixed attribute '%s' of '%s'\n" % (sd_attr, 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 check_object(self, dn, attrs=['*']): - '''check one object''' - if self.verbose: - self.report("Checking object %s" % dn) - if '*' in attrs: - attrs.append("replPropertyMetaData") - - 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, - ], - 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 - list_attrs_from_md = [] - list_attrs_seen = [] - got_repl_property_meta_data = False - - for attrname in obj: - if attrname == 'dn': - continue - - if str(attrname).lower() == 'replpropertymetadata': - list_attrs_from_md = self.process_metadata(obj[attrname]) - 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 str(attrname).lower() == 'objectclass': - normalised = self.samdb.dsdb_normalise_attributes(self.samdb_schema, attrname, list(obj[attrname])) - if list(normalised) != list(obj[attrname]): - self.err_normalise_mismatch_replace(dn, attrname, list(obj[attrname])) - error_count += 1 - continue - - # 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 - - 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 self.samdb_schema.get_linkId_from_lDAPDisplayName(attrname)): - list_attrs_seen.append(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) - - # check for incorrectly normalised attributes - for val in obj[attrname]: - 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 str(attrname).lower() == "instancetype": - calculated_instancetype = self.calculate_instancetype(dn) - if len(obj["instanceType"]) != 1 or obj["instanceType"][0] != str(calculated_instancetype): - self.err_wrong_instancetype(obj, calculated_instancetype) - - show_dn = True - if got_repl_property_meta_data: - rdn = (str(dn).split(","))[0] - if rdn == "CN=Deleted Objects": - 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 list_attrs_seen: - if not att in list_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: - self.err_no_fsmoRoleOwner(obj) - error_count += 1 - - try: - if dn != self.samdb.get_root_basedn(): - 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 - - 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) |