#!/usr/bin/env python # # implement samba_tool drs commands # # Copyright Andrew Tridgell 2010 # # based on C implementation by Kamen Mazdrashki # # 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 . # import samba.getopt as options import ldb from samba.auth import system_session from samba.netcmd import ( Command, CommandError, Option, SuperCommand, ) from samba.samdb import SamDB from samba import drs_utils, nttime2string, dsdb from samba.dcerpc import drsuapi, misc def drsuapi_connect(ctx): '''make a DRSUAPI connection to the server''' binding_options = "seal" if ctx.lp.get("log level") >= 5: binding_options += ",print" binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options) try: ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds) (ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi) except Exception, e: raise CommandError("DRS connection to %s failed" % ctx.server, e) def samdb_connect(ctx): '''make a ldap connection to the server''' try: ctx.samdb = SamDB(url="ldap://%s" % ctx.server, session_info=system_session(), credentials=ctx.creds, lp=ctx.lp) except Exception, e: raise CommandError("LDAP connection to %s failed" % ctx.server, e) def drs_errmsg(werr): '''return "was successful" or an error string''' (ecode, estring) = werr if ecode == 0: return "was successful" return "failed, result %u (%s)" % (ecode, estring) def attr_default(msg, attrname, default): '''get an attribute from a ldap msg with a default''' if attrname in msg: return msg[attrname][0] return default def drs_parse_ntds_dn(ntds_dn): '''parse a NTDS DN returning a site and server''' a = ntds_dn.split(',') if a[0] != "CN=NTDS Settings" or a[2] != "CN=Servers" or a[4] != 'CN=Sites': raise RuntimeError("bad NTDS DN %s" % ntds_dn) server = a[1].split('=')[1] site = a[3].split('=')[1] return (site, server) class cmd_drs_showrepl(Command): """show replication status""" synopsis = "%prog drs showrepl " takes_optiongroups = { "sambaopts": options.SambaOptions, "versionopts": options.VersionOptions, "credopts": options.CredentialsOptions, } takes_args = ["DC"] def print_neighbour(self, n): '''print one set of neighbour information''' (site, server) = drs_parse_ntds_dn(n.source_dsa_obj_dn) print("%s" % n.naming_context_dn) print("\t%s\%s via RPC" % (site, server)) print("\t\tDSA object GUID: %s" % n.source_dsa_obj_guid) print("\t\tLast attempt @ %s %s" % (nttime2string(n.last_attempt), drs_errmsg(n.result_last_attempt))) print("\t\t%u consecutive failure(s)." % n.consecutive_sync_failures) print("\t\tLast success @ %s" % nttime2string(n.last_success)) print("") def get_dsServiceName(ctx): '''get the NTDS DN from the rootDSE''' res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dsServiceName"]) return res[0]["dsServiceName"][0] def drsuapi_ReplicaInfo(ctx, info_type): '''call a DsReplicaInfo''' req1 = drsuapi.DsReplicaGetInfoRequest1() req1.info_type = info_type try: (info_type, info) = ctx.drsuapi.DsReplicaGetInfo(ctx.drsuapi_handle, 1, req1) except Exception, e: raise CommandError("DsReplicaGetInfo of type %u failed" % info_type, e) return (info_type, info) def run(self, DC, sambaopts=None, credopts=None, versionopts=None, server=None): self.server = DC self.lp = sambaopts.get_loadparm() self.creds = credopts.get_credentials(self.lp) if not self.creds.authentication_requested(): self.creds.set_machine_account(self.lp) drsuapi_connect(self) samdb_connect(self) # show domain information ntds_dn = self.get_dsServiceName() server_dns = self.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])[0]['dnsHostName'][0] (site, server) = drs_parse_ntds_dn(ntds_dn) ntds = self.samdb.search(base=ntds_dn, scope=ldb.SCOPE_BASE, attrs=['options', 'objectGUID', 'invocationId']) conn = self.samdb.search(base=ntds_dn, expression="(objectClass=nTDSConnection)") print("%s\\%s" % (site, server)) print("DSA Options: 0x%08x" % int(attr_default(ntds[0], "options", 0))) print("DSA object GUID: %s" % self.samdb.schema_format_value("objectGUID", ntds[0]["objectGUID"][0])) print("DSA invocationId: %s\n" % self.samdb.schema_format_value("objectGUID", ntds[0]["invocationId"][0])) print("==== INBOUND NEIGHBORS ====\n") (info_type, info) = self.drsuapi_ReplicaInfo(drsuapi.DRSUAPI_DS_REPLICA_INFO_NEIGHBORS) for n in info.array: self.print_neighbour(n) print("==== OUTBOUND NEIGHBORS ====\n") (info_type, info) = self.drsuapi_ReplicaInfo(drsuapi.DRSUAPI_DS_REPLICA_INFO_REPSTO) for n in info.array: self.print_neighbour(n) reasons = ['NTDSCONN_KCC_GC_TOPOLOGY', 'NTDSCONN_KCC_RING_TOPOLOGY', 'NTDSCONN_KCC_MINIMIZE_HOPS_TOPOLOGY', 'NTDSCONN_KCC_STALE_SERVERS_TOPOLOGY', 'NTDSCONN_KCC_OSCILLATING_CONNECTION_TOPOLOGY', 'NTDSCONN_KCC_INTERSITE_GC_TOPOLOGY', 'NTDSCONN_KCC_INTERSITE_TOPOLOGY', 'NTDSCONN_KCC_SERVER_FAILOVER_TOPOLOGY', 'NTDSCONN_KCC_SITE_FAILOVER_TOPOLOGY', 'NTDSCONN_KCC_REDUNDANT_SERVER_TOPOLOGY'] print("==== KCC CONNECTION OBJECTS ====\n") for c in conn: print("Connection --") print("\tConnection name: %s" % c['name'][0]) print("\tEnabled : %s" % attr_default(c, 'enabledConnection', 'TRUE')) print("\tServer DNS name : %s" % server_dns) print("\tServer DN name : %s" % c['fromServer'][0]) print("\t\tTransportType: RPC") print("\t\toptions: 0x%08X" % int(attr_default(c, 'options', 0))) if not 'mS-DS-ReplicatesNCReason' in c: print("Warning: No NC replicated for Connection!") continue for r in c['mS-DS-ReplicatesNCReason']: a = str(r).split(':') print("\t\tReplicatesNC: %s" % a[3]) print("\t\tReason: 0x%08x" % int(a[2])) for s in reasons: if getattr(dsdb, s, 0) & int(a[2]): print("\t\t\t%s" % s) class cmd_drs_kcc(Command): """trigger knowledge consistency center run""" synopsis = "%prog drs kcc " takes_optiongroups = { "sambaopts": options.SambaOptions, "versionopts": options.VersionOptions, "credopts": options.CredentialsOptions, } takes_args = ["DC"] def run(self, DC, sambaopts=None, credopts=None, versionopts=None, server=None): self.server = DC self.lp = sambaopts.get_loadparm() self.creds = credopts.get_credentials(self.lp) if not self.creds.authentication_requested(): self.creds.set_machine_account(self.lp) drsuapi_connect(self) req1 = drsuapi.DsExecuteKCC1() try: self.drsuapi.DsExecuteKCC(self.drsuapi_handle, 1, req1) except Exception, e: raise CommandError("DsExecuteKCC failed", e) print("Consistency check on %s successful." % DC) class cmd_drs_replicate(Command): """replicate a naming context between two DCs""" synopsis = "%prog drs replicate " takes_optiongroups = { "sambaopts": options.SambaOptions, "versionopts": options.VersionOptions, "credopts": options.CredentialsOptions, } takes_args = ["DEST_DC", "SOURCE_DC", "NC"] takes_options = [ Option("--add-ref", help="use ADD_REF to add to repsTo on source", action="store_true"), ] def run(self, DEST_DC, SOURCE_DC, NC, add_ref=False, sambaopts=None, credopts=None, versionopts=None, server=None): self.server = DEST_DC self.lp = sambaopts.get_loadparm() self.creds = credopts.get_credentials(self.lp) if not self.creds.authentication_requested(): self.creds.set_machine_account(self.lp) drsuapi_connect(self) samdb_connect(self) # we need to find the NTDS GUID of the source DC msg = self.samdb.search(base=self.samdb.get_config_basedn(), expression="(&(objectCategory=server)(|(name=%s)(dNSHostName=%s)))" % (SOURCE_DC, SOURCE_DC), attrs=[]) if len(msg) == 0: raise CommandError("Failed to find source DC %s" % SOURCE_DC) server_dn = msg[0]['dn'] msg = self.samdb.search(base=server_dn, scope=ldb.SCOPE_ONELEVEL, expression="(|(objectCategory=nTDSDSA)(objectCategory=nTDSDSARO))", attrs=['objectGUID', 'options']) if len(msg) == 0: raise CommandError("Failed to find source NTDS DN %s" % SOURCE_DC) source_dsa_guid = msg[0]['objectGUID'][0] options = int(attr_default(msg, 'options', 0)) nc = drsuapi.DsReplicaObjectIdentifier() nc.dn = NC req1 = drsuapi.DsReplicaSyncRequest1() req1.naming_context = nc; req1.options = 0 if not (options & dsdb.DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL): req1.options |= drsuapi.DRSUAPI_DRS_WRIT_REP if add_ref: req1.options |= drsuapi.DRSUAPI_DRS_ADD_REF req1.source_dsa_guid = misc.GUID(source_dsa_guid) try: self.drsuapi.DsReplicaSync(self.drsuapi_handle, 1, req1) except Exception, e: raise CommandError("DsReplicaSync failed", estr) print("Replicate from %s to %s was successful." % (SOURCE_DC, DEST_DC)) class cmd_drs_bind(Command): """show DRS capabilities of a server""" synopsis = "%prog drs bind " takes_optiongroups = { "sambaopts": options.SambaOptions, "versionopts": options.VersionOptions, "credopts": options.CredentialsOptions, } takes_args = ["DC"] def run(self, DC, sambaopts=None, credopts=None, versionopts=None, server=None): self.server = DC self.lp = sambaopts.get_loadparm() self.creds = credopts.get_credentials(self.lp) if not self.creds.authentication_requested(): self.creds.set_machine_account(self.lp) drsuapi_connect(self) samdb_connect(self) bind_info = drsuapi.DsBindInfoCtr() bind_info.length = 28 bind_info.info = drsuapi.DsBindInfo28() (info, handle) = self.drsuapi.DsBind(misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID), bind_info) optmap = [ ("DRSUAPI_SUPPORTED_EXTENSION_BASE" , "DRS_EXT_BASE"), ("DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION" , "DRS_EXT_ASYNCREPL"), ("DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI" , "DRS_EXT_REMOVEAPI"), ("DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2" , "DRS_EXT_MOVEREQ_V2"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS" , "DRS_EXT_GETCHG_DEFLATE"), ("DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1" , "DRS_EXT_DCINFO_V1"), ("DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION" , "DRS_EXT_RESTORE_USN_OPTIMIZATION"), ("DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY" , "DRS_EXT_ADDENTRY"), ("DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE" , "DRS_EXT_KCC_EXECUTE"), ("DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2" , "DRS_EXT_ADDENTRY_V2"), ("DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION" , "DRS_EXT_LINKED_VALUE_REPLICATION"), ("DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2" , "DRS_EXT_DCINFO_V2"), ("DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD","DRS_EXT_INSTANCE_TYPE_NOT_REQ_ON_MOD"), ("DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND" , "DRS_EXT_CRYPTO_BIND"), ("DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO" , "DRS_EXT_GET_REPL_INFO"), ("DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION" , "DRS_EXT_STRONG_ENCRYPTION"), ("DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01" , "DRS_EXT_DCINFO_VFFFFFFFF"), ("DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP" , "DRS_EXT_TRANSITIVE_MEMBERSHIP"), ("DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY" , "DRS_EXT_ADD_SID_HISTORY"), ("DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3" , "DRS_EXT_POST_BETA3"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V5" , "DRS_EXT_GETCHGREQ_V5"), ("DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2" , "DRS_EXT_GETMEMBERSHIPS2"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6" , "DRS_EXT_GETCHGREQ_V6"), ("DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS" , "DRS_EXT_NONDOMAIN_NCS"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8" , "DRS_EXT_GETCHGREQ_V8"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5" , "DRS_EXT_GETCHGREPLY_V5"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6" , "DRS_EXT_GETCHGREPLY_V6"), ("DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3" , "DRS_EXT_WHISTLER_BETA3"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7" , "DRS_EXT_WHISTLER_BETA3"), ("DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT" , "DRS_EXT_WHISTLER_BETA3"), ("DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS" , "DRS_EXT_W2K3_DEFLATE"), ("DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V10" , "DRS_EXT_GETCHGREQ_V10"), ("DRSUAPI_SUPPORTED_EXTENSION_RESERVED_PART2" , "DRS_EXT_RESERVED_FOR_WIN2K_OR_DOTNET_PART2"), ("DRSUAPI_SUPPORTED_EXTENSION_RESERVED_PART3" , "DRS_EXT_RESERVED_FOR_WIN2K_OR_DOTNET_PART3") ] optmap_ext = [ ("DRSUAPI_SUPPORTED_EXTENSION_ADAM", "DRS_EXT_ADAM"), ("DRSUAPI_SUPPORTED_EXTENSION_LH_BETA2", "DRS_EXT_LH_BETA2"), ("DRSUAPI_SUPPORTED_EXTENSION_RECYCLE_BIN", "DRS_EXT_RECYCLE_BIN")] print("Bind to %s succeeded." % DC) print("Extensions supported:") for (opt, str) in optmap: optval = getattr(drsuapi, opt, 0) if info.info.supported_extensions & optval: yesno = "Yes" else: yesno = "No " print(" %-60s: %s (%s)" % (opt, yesno, str)) if isinstance(info.info, drsuapi.DsBindInfo48): print("\nExtended Extensions supported:") for (opt, str) in optmap_ext: optval = getattr(drsuapi, opt, 0) if info.info.supported_extensions_ext & optval: yesno = "Yes" else: yesno = "No " print(" %-60s: %s (%s)" % (opt, yesno, str)) print("\nSite GUID: %s" % info.info.site_guid) print("Repl epoch: %u" % info.info.repl_epoch) if isinstance(info.info, drsuapi.DsBindInfo48): print("Forest GUID: %s" % info.info.config_dn_guid) class cmd_drs(SuperCommand): """DRS commands""" subcommands = {} subcommands["bind"] = cmd_drs_bind() subcommands["kcc"] = cmd_drs_kcc() subcommands["replicate"] = cmd_drs_replicate() subcommands["showrepl"] = cmd_drs_showrepl()