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https://github.com/samba-team/samba.git
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866d5b3cd8
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Noel Power <noel.power@suse.com>
164 lines
5.7 KiB
Python
164 lines
5.7 KiB
Python
# rodc related commands
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#
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# Copyright Andrew Tridgell 2010
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from samba.netcmd import Command, CommandError, Option, SuperCommand
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import samba.getopt as options
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from samba.samdb import SamDB
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from samba.auth import system_session
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import ldb
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from samba.dcerpc import misc, drsuapi
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from samba.drs_utils import drs_Replicate
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import sys
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class RODCException(Exception):
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def __init__(self, value):
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self.value = value
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def __str__(self):
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return "%s: %s" % (self.__class__.__name__, self.value)
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class NamingError(RODCException):
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pass
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class ReplicationError(RODCException):
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pass
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class cmd_rodc_preload(Command):
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"""Preload accounts for an RODC. Multiple accounts may be requested."""
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synopsis = "%prog (<SID>|<DN>|<accountname>)+ ... [options]"
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takes_optiongroups = {
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"sambaopts": options.SambaOptions,
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"versionopts": options.VersionOptions,
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"credopts": options.CredentialsOptions,
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}
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takes_options = [
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Option("--server", help="DC to use", type=str),
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Option("--file", help="Read account list from a file, or - for stdin (one per line)", type=str),
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Option("--ignore-errors", help="When preloading multiple accounts, skip any failing accounts", action="store_true"),
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]
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takes_args = ["account*"]
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def get_dn(self, samdb, account):
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'''work out what DN they meant'''
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# we accept the account in SID, accountname or DN form
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if account[0:2] == 'S-':
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res = samdb.search(base="<SID=%s>" % account,
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expression="objectclass=user",
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scope=ldb.SCOPE_BASE, attrs=[])
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elif account.find('=') >= 0:
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res = samdb.search(base=account,
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expression="objectclass=user",
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scope=ldb.SCOPE_BASE, attrs=[])
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else:
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res = samdb.search(expression="(&(samAccountName=%s)(objectclass=user))" % ldb.binary_encode(account),
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scope=ldb.SCOPE_SUBTREE, attrs=[])
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if len(res) != 1:
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raise NamingError("Failed to find account '%s'" % account)
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return str(res[0]["dn"])
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def run(self, *accounts, **kwargs):
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sambaopts = kwargs.get("sambaopts")
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credopts = kwargs.get("credopts")
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server = kwargs.get("server")
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accounts_file = kwargs.get("file")
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ignore_errors = kwargs.get("ignore_errors")
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if server is None:
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raise Exception("You must supply a server")
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if accounts_file is not None:
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accounts = []
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if accounts_file == "-":
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for line in sys.stdin:
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accounts.append(line.strip())
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else:
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for line in open(accounts_file, 'r'):
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accounts.append(line.strip())
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lp = sambaopts.get_loadparm()
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creds = credopts.get_credentials(lp, fallback_machine=True)
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# connect to the remote and local SAMs
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samdb = SamDB(url="ldap://%s" % server,
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session_info=system_session(),
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credentials=creds, lp=lp)
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local_samdb = SamDB(url=None, session_info=system_session(),
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credentials=creds, lp=lp)
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destination_dsa_guid = misc.GUID(local_samdb.get_ntds_GUID())
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binding_options = "seal"
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if lp.log_level() >= 9:
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binding_options += ",print"
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repl = drs_Replicate("ncacn_ip_tcp:%s[%s]" % (server, binding_options),
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lp, creds,
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local_samdb, destination_dsa_guid)
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errors = []
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for account in accounts:
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# work out the source and destination GUIDs
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dc_ntds_dn = samdb.get_dsServiceName()
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res = samdb.search(base=dc_ntds_dn, scope=ldb.SCOPE_BASE, attrs=["invocationId"])
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source_dsa_invocation_id = misc.GUID(local_samdb.schema_format_value("objectGUID", res[0]["invocationId"][0]))
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try:
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dn = self.get_dn(samdb, account)
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except RODCException as e:
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if not ignore_errors:
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raise CommandError(str(e))
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errors.append(e)
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continue
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self.outf.write("Replicating DN %s\n" % dn)
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local_samdb.transaction_start()
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try:
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repl.replicate(dn, source_dsa_invocation_id, destination_dsa_guid,
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exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
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except Exception as e:
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local_samdb.transaction_cancel()
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if not ignore_errors:
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raise CommandError("Error replicating DN %s" % dn)
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errors.append(ReplicationError("Error replicating DN %s" % dn))
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continue
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local_samdb.transaction_commit()
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if len(errors) > 0:
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self.message("\nPreload encountered problematic users:")
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for error in errors:
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self.message(" %s" % error)
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class cmd_rodc(SuperCommand):
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"""Read-Only Domain Controller (RODC) management."""
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subcommands = {}
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subcommands["preload"] = cmd_rodc_preload()
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