JezK
Edit File: rodc.py
# rodc related commands # # Copyright Andrew Tridgell 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.netcmd import Command, CommandError, Option, SuperCommand import samba.getopt as options from samba.samdb import SamDB from samba.auth import system_session import ldb from samba.dcerpc import misc, drsuapi from samba.drs_utils import drs_Replicate import sys class RODCException(Exception): def __init__(self, value): self.value = value def __str__(self): return "%s: %s" % (self.__class__.__name__, self.value) class NamingError(RODCException): pass class ReplicationError(RODCException): pass class cmd_rodc_preload(Command): """Preload accounts for an RODC. Multiple accounts may be requested.""" synopsis = "%prog (<SID>|<DN>|<accountname>)+ ... [options]" takes_optiongroups = { "sambaopts": options.SambaOptions, "versionopts": options.VersionOptions, "credopts": options.CredentialsOptions, } takes_options = [ Option("--server", help="DC to use", type=str), Option("--file", help="Read account list from a file, or - for stdin (one per line)", type=str), Option("--ignore-errors", help="When preloading multiple accounts, skip any failing accounts", action="store_true"), ] takes_args = ["account*"] def get_dn(self, samdb, account): '''work out what DN they meant''' # we accept the account in SID, accountname or DN form if account[0:2] == 'S-': res = samdb.search(base="<SID=%s>" % account, expression="objectclass=user", scope=ldb.SCOPE_BASE, attrs=[]) elif account.find('=') >= 0: res = samdb.search(base=account, expression="objectclass=user", scope=ldb.SCOPE_BASE, attrs=[]) else: res = samdb.search(expression="(&(samAccountName=%s)(objectclass=user))" % ldb.binary_encode(account), scope=ldb.SCOPE_SUBTREE, attrs=[]) if len(res) != 1: raise NamingError("Failed to find account '%s'" % account) return str(res[0]["dn"]) def run(self, *accounts, **kwargs): sambaopts = kwargs.get("sambaopts") credopts = kwargs.get("credopts") server = kwargs.get("server") accounts_file = kwargs.get("file") ignore_errors = kwargs.get("ignore_errors") if server is None: raise Exception("You must supply a server") if accounts_file is not None: accounts = [] if accounts_file == "-": for line in sys.stdin: accounts.append(line.strip()) else: for line in open(accounts_file, 'r'): accounts.append(line.strip()) lp = sambaopts.get_loadparm() creds = credopts.get_credentials(lp, fallback_machine=True) # connect to the remote and local SAMs samdb = SamDB(url="ldap://%s" % server, session_info=system_session(), credentials=creds, lp=lp) local_samdb = SamDB(url=None, session_info=system_session(), credentials=creds, lp=lp) destination_dsa_guid = misc.GUID(local_samdb.get_ntds_GUID()) binding_options = "seal" if lp.log_level() >= 9: binding_options += ",print" repl = drs_Replicate("ncacn_ip_tcp:%s[%s]" % (server, binding_options), lp, creds, local_samdb, destination_dsa_guid) errors = [] for account in accounts: # work out the source and destination GUIDs dc_ntds_dn = samdb.get_dsServiceName() res = samdb.search(base=dc_ntds_dn, scope=ldb.SCOPE_BASE, attrs=["invocationId"]) source_dsa_invocation_id = misc.GUID(local_samdb.schema_format_value("objectGUID", res[0]["invocationId"][0])) try: dn = self.get_dn(samdb, account) except RODCException as e: if not ignore_errors: raise CommandError(str(e)) errors.append(e) continue self.outf.write("Replicating DN %s\n" % dn) local_samdb.transaction_start() try: repl.replicate(dn, source_dsa_invocation_id, destination_dsa_guid, exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True) except Exception as e: local_samdb.transaction_cancel() if not ignore_errors: raise CommandError("Error replicating DN %s" % dn) errors.append(ReplicationError("Error replicating DN %s" % dn)) continue local_samdb.transaction_commit() if len(errors) > 0: self.message("\nPreload encountered problematic users:") for error in errors: self.message(" %s" % error) class cmd_rodc(SuperCommand): """Read-Only Domain Controller (RODC) management.""" subcommands = {} subcommands["preload"] = cmd_rodc_preload()