source4/scripting/python/samba/netcmd/rodc.py

   1 #!/usr/bin/env python
   2 #
   3 # rodc related commands
   4 #
   5 # Copyright Andrew Tridgell 2010
   6 # Copyright Giampaolo Lauria 2011 <lauria2@yahoo.com>
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 from samba.netcmd import Command, CommandError, Option, SuperCommand
  23 import samba.getopt as options
  24 from samba.samdb import SamDB
  25 from samba.auth import system_session
  26 import ldb
  27 from samba.dcerpc import misc, drsuapi
  28 from samba.credentials import Credentials
  29 from samba.drs_utils import drs_Replicate
  30
  31
  32
  33 class cmd_rodc_preload(Command):
  34     """Preload one account for an RODC"""
  35
  36     synopsis = "%prog rodc preload (<SID>|<DN>|<accountname>) [options]"
  37
  38     takes_options = [
  39         Option("--server", help="DC to use", type=str),
  40         ]
  41
  42     takes_args = ["account"]
  43
  44     def get_dn(self, samdb, account):
  45         '''work out what DN they meant'''
  46
  47         # we accept the account in SID, accountname or DN form
  48         if account[0:2] == 'S-':
  49             res = samdb.search(base="<SID=%s>" % account,
  50                                expression="objectclass=user",
  51                                scope=ldb.SCOPE_BASE, attrs=[])
  52         elif account.find('=') >= 0:
  53             res = samdb.search(base=account,
  54                                expression="objectclass=user",
  55                                scope=ldb.SCOPE_BASE, attrs=[])
  56         else:
  57             res = samdb.search(expression="(&(samAccountName=%s)(objectclass=user))" % ldb.binary_encode(account),
  58                                scope=ldb.SCOPE_SUBTREE, attrs=[])
  59         if len(res) != 1:
  60             raise Exception("Failed to find account '%s'" % account)
  61         return str(res[0]["dn"])
  62
  63
  64     def get_dsServiceName(self, samdb):
  65         res = samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dsServiceName"])
  66         return res[0]["dsServiceName"][0]
  67
  68
  69     def run(self, account, sambaopts=None,
  70             credopts=None, versionopts=None, server=None):
  71
  72         if server is None:
  73             raise Exception("You must supply a server")
  74
  75         lp = sambaopts.get_loadparm()
  76
  77         creds = credopts.get_credentials(lp, fallback_machine=True)
  78
  79         # connect to the remote and local SAMs
  80         samdb = SamDB(url="ldap://%s" % server,
  81                       session_info=system_session(),
  82                       credentials=creds, lp=lp)
  83
  84         local_samdb = SamDB(url=None, session_info=system_session(),
  85                             credentials=creds, lp=lp)
  86
  87         # work out the source and destination GUIDs
  88         dc_ntds_dn = self.get_dsServiceName(samdb)
  89         res = samdb.search(base=dc_ntds_dn, scope=ldb.SCOPE_BASE, attrs=["invocationId"])
  90         source_dsa_invocation_id = misc.GUID(local_samdb.schema_format_value("objectGUID", res[0]["invocationId"][0]))
  91
  92         dn = self.get_dn(samdb, account)
  93         self.outf.write("Replicating DN %s\n" % dn)
  94
  95         destination_dsa_guid = misc.GUID(local_samdb.get_ntds_GUID())
  96
  97         local_samdb.transaction_start()
  98         repl = drs_Replicate("ncacn_ip_tcp:%s[seal,print]" % server, lp, creds, local_samdb)
  99         try:
 100             repl.replicate(dn, source_dsa_invocation_id, destination_dsa_guid,
 101                            exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
 102         except Exception, e:
 103             raise CommandError("Error replicating DN %s" % dn, e)
 104         local_samdb.transaction_commit()
 105
 106
 107
 108 class cmd_rodc(SuperCommand):
 109     """Read-Only Domain Controller (RODC) management"""
 110
 111     subcommands = {}
 112     subcommands["preload"] = cmd_rodc_preload()