python/samba/netcmd/forest.py

   1 # domain management
   2 #
   3 # Copyright William Brown <william@blackhats.net.au> 2018
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18
  19 import ldb
  20 import samba.getopt as options
  21 from samba.auth import system_session
  22 from samba.samdb import SamDB
  23 from samba.netcmd import (
  24     Command,
  25     CommandError,
  26     SuperCommand,
  27     Option
  28 )
  29
  30
  31 class cmd_forest_show(Command):
  32     """Display forest settings.
  33
  34     These settings control the behaviour of all domain controllers in this
  35     forest. This displays those settings from the replicated configuration
  36     partition.
  37     """
  38
  39     synopsis = "%prog [options]"
  40
  41     takes_optiongroups = {
  42         "sambaopts": options.SambaOptions,
  43         "versionopts": options.VersionOptions,
  44         "credopts": options.CredentialsOptions,
  45     }
  46
  47     takes_options = [
  48         Option("-H", "--URL", help="LDB URL for database or target server",
  49                type=str, metavar="URL", dest="H"),
  50     ]
  51
  52     def run(self, H=None, credopts=None, sambaopts=None, versionopts=None):
  53         lp = sambaopts.get_loadparm()
  54         creds = credopts.get_credentials(lp)
  55
  56         samdb = SamDB(url=H, session_info=system_session(),
  57                       credentials=creds, lp=lp)
  58
  59         domain_dn = samdb.domain_dn()
  60         object_dn = "%s,%s" % (self.objectdn, domain_dn)
  61
  62         # Show all the settings we know how to set in the forest object!
  63         res = samdb.search(base=object_dn, scope=ldb.SCOPE_BASE,
  64                            attrs=self.attributes)
  65
  66         # Now we just display these attributes. The value is that
  67         # we make them a bit prettier and human accessible.
  68         # There should only be one response!
  69         res_object = res[0]
  70
  71         self.outf.write("Settings for %s\n" % object_dn)
  72         for attr in self.attributes:
  73             try:
  74                 self.outf.write("%s: %s\n" % (attr, res_object[attr][0]))
  75             except KeyError:
  76                 self.outf.write("%s: <NO VALUE>\n" % attr)
  77
  78
  79 class cmd_forest_set(Command):
  80     """Modify forest settings.
  81
  82     This will alter the setting specified to value.
  83     """
  84
  85     attribute = None
  86     objectdn = None
  87
  88     synopsis = "%prog value [options]"
  89
  90     takes_optiongroups = {
  91         "sambaopts": options.SambaOptions,
  92         "versionopts": options.VersionOptions,
  93         "credopts": options.CredentialsOptions,
  94     }
  95
  96     takes_options = [
  97         Option("-H", "--URL", help="LDB URL for database or target server",
  98                type=str, metavar="URL", dest="H"),
  99     ]
 100
 101     takes_args = ["value"]
 102
 103     def run(self, value, H=None, credopts=None, sambaopts=None, versionopts=None):
 104         lp = sambaopts.get_loadparm()
 105         creds = credopts.get_credentials(lp)
 106
 107         samdb = SamDB(url=H, session_info=system_session(),
 108                       credentials=creds, lp=lp)
 109
 110         domain_dn = samdb.domain_dn()
 111         object_dn = "%s,%s" % (self.objectdn, domain_dn)
 112
 113         # Create the modification
 114         m = ldb.Message()
 115         m.dn = ldb.Dn(samdb, object_dn)
 116         m[self.attribute] = ldb.MessageElement(
 117             value, ldb.FLAG_MOD_REPLACE, self.attribute)
 118
 119         samdb.modify(m)
 120         self.outf.write("set %s: %s\n" % (self.attribute, value))
 121
 122
 123 # Then you override it for each setting name:
 124
 125 class cmd_forest_show_directory_service(cmd_forest_show):
 126     """Display Directory Service settings for the forest.
 127
 128     These settings control how the Directory Service behaves on all domain
 129     controllers in the forest.
 130     """
 131     objectdn = "CN=Directory Service,CN=Windows NT,CN=Services,CN=Configuration"
 132     attributes = ['dsheuristics']
 133
 134
 135 class cmd_forest_set_directory_service_dsheuristics(cmd_forest_set):
 136     """Set the value of dsheuristics on the Directory Service.
 137
 138     This value alters the behaviour of the Directory Service on all domain
 139     controllers in the forest. Documentation related to this parameter can be
 140     found here: https://msdn.microsoft.com/en-us/library/cc223560.aspx
 141
 142     In summary each "character" of the number-string, controls a setting.
 143     A common setting is to set the value "2" in the 7th character. This controls
 144     anonymous search behaviour.
 145
 146     Example: dsheuristics 0000002
 147
 148     This would allow anonymous LDAP searches to the domain (you may still need
 149     to alter access controls to allow this).
 150     """
 151     objectdn = "CN=Directory Service,CN=Windows NT,CN=Services,CN=Configuration"
 152     attribute = 'dsheuristics'
 153
 154
 155 class cmd_forest_directory_service(SuperCommand):
 156     """Forest configuration partition management."""
 157
 158     subcommands = {}
 159     subcommands["show"] = cmd_forest_show_directory_service()
 160     subcommands["dsheuristics"] = cmd_forest_set_directory_service_dsheuristics()
 161
 162
 163 class cmd_forest(SuperCommand):
 164     """Forest management."""
 165
 166     subcommands = {}
 167     subcommands["directory_service"] = cmd_forest_directory_service()