diff options
Diffstat (limited to 'source4/scripting/python/samba/drs_utils.py')
| -rw-r--r-- | source4/scripting/python/samba/drs_utils.py | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/source4/scripting/python/samba/drs_utils.py b/source4/scripting/python/samba/drs_utils.py new file mode 100644 index 0000000000..77f415ed17 --- /dev/null +++ b/source4/scripting/python/samba/drs_utils.py @@ -0,0 +1,173 @@ +#!/usr/bin/env python +# +# DRS utility code +# +# Copyright Andrew Tridgell 2010 +# Copyright Andrew Bartlett 2010 +# +# 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/>. +# + +from samba.dcerpc import drsuapi, misc +from samba.net import Net +import samba, ldb + + +def drs_DsBind(drs): + '''make a DsBind call, returning the binding handle''' + bind_info = drsuapi.DsBindInfoCtr() + bind_info.length = 28 + bind_info.info = drsuapi.DsBindInfo28() + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_BASE + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7 + bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT + (info, handle) = drs.DsBind(misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID), bind_info) + + return (handle, info.info.supported_extensions) + + +class drs_Replicate: + '''DRS replication calls''' + + def __init__(self, binding_string, lp, creds, samdb): + self.drs = drsuapi.drsuapi(binding_string, lp, creds) + (self.drs_handle, self.supported_extensions) = drs_DsBind(self.drs) + self.net = Net(creds=creds, lp=lp) + self.samdb = samdb + self.replication_state = self.net.replicate_init(self.samdb, lp, self.drs) + + def drs_get_rodc_partial_attribute_set(self): + '''get a list of attributes for RODC replication''' + partial_attribute_set = drsuapi.DsPartialAttributeSet() + partial_attribute_set.version = 1 + + attids = [] + + # the exact list of attids we send is quite critical. Note that + # we do ask for the secret attributes, but set SPECIAL_SECRET_PROCESSING + # to zero them out + schema_dn = self.samdb.get_schema_basedn() + res = self.samdb.search(base=schema_dn, scope=ldb.SCOPE_SUBTREE, + expression="objectClass=attributeSchema", + attrs=["lDAPDisplayName", "systemFlags", + "searchFlags"]) + + for r in res: + ldap_display_name = r["lDAPDisplayName"][0] + if "systemFlags" in r: + system_flags = r["systemFlags"][0] + if (int(system_flags) & (samba.dsdb.DS_FLAG_ATTR_NOT_REPLICATED | + samba.dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED)): + continue + if "searchFlags" in r: + search_flags = r["searchFlags"][0] + if (int(search_flags) & samba.dsdb.SEARCH_FLAG_RODC_ATTRIBUTE): + continue + attid = self.samdb.get_attid_from_lDAPDisplayName(ldap_display_name) + attids.append(int(attid)) + + # the attids do need to be sorted, or windows doesn't return + # all the attributes we need + attids.sort() + partial_attribute_set.attids = attids + partial_attribute_set.num_attids = len(attids) + return partial_attribute_set + + def replicate(self, dn, source_dsa_invocation_id, destination_dsa_guid, + schema=False, exop=drsuapi.DRSUAPI_EXOP_NONE, rodc=False, + replica_flags=None): + '''replicate a single DN''' + + # setup for a GetNCChanges call + req8 = drsuapi.DsGetNCChangesRequest8() + + req8.destination_dsa_guid = destination_dsa_guid + req8.source_dsa_invocation_id = source_dsa_invocation_id + req8.naming_context = drsuapi.DsReplicaObjectIdentifier() + req8.naming_context.dn = dn + req8.highwatermark = drsuapi.DsReplicaHighWaterMark() + req8.highwatermark.tmp_highest_usn = 0 + req8.highwatermark.reserved_usn = 0 + req8.highwatermark.highest_usn = 0 + req8.uptodateness_vector = None + if replica_flags is not None: + req8.replica_flags = replica_flags + elif exop == drsuapi.DRSUAPI_EXOP_REPL_SECRET: + req8.replica_flags = 0 + else: + req8.replica_flags = (drsuapi.DRSUAPI_DRS_INIT_SYNC | + drsuapi.DRSUAPI_DRS_PER_SYNC | + drsuapi.DRSUAPI_DRS_GET_ANC | + drsuapi.DRSUAPI_DRS_NEVER_SYNCED) + if rodc: + req8.replica_flags |= drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING + else: + req8.replica_flags |= drsuapi.DRSUAPI_DRS_WRIT_REP + req8.max_object_count = 402 + req8.max_ndr_size = 402116 + req8.extended_op = exop + req8.fsmo_info = 0 + req8.partial_attribute_set = None + req8.partial_attribute_set_ex = None + req8.mapping_ctr.num_mappings = 0 + req8.mapping_ctr.mappings = None + + if not schema and rodc: + req8.partial_attribute_set = self.drs_get_rodc_partial_attribute_set() + + if self.supported_extensions & drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8: + req_level = 8 + req = req8 + else: + req_level = 5 + req5 = drsuapi.DsGetNCChangesRequest5() + for a in dir(req5): + if a[0] != '_': + setattr(req5, a, getattr(req8, a)) + req = req5 + + + while True: + (level, ctr) = self.drs.DsGetNCChanges(self.drs_handle, req_level, req) + if ctr.first_object == None and ctr.object_count != 0: + raise RuntimeError("DsGetNCChanges: NULL first_object with object_count=%u" % (ctr.object_count)) + self.net.replicate_chunk(self.replication_state, level, ctr, schema=schema) + if ctr.more_data == 0: + break + req.highwatermark.tmp_highest_usn = ctr.new_highwatermark.tmp_highest_usn |