#!/usr/bin/env python
#
# domain management
#
# Copyright Matthias Dieter Wallnoefer 2009
# Copyright Andrew Kroeger 2009
# Copyright Jelmer Vernooij 2009
# Copyright Giampaolo Lauria 2011
# Copyright Matthieu Patou <mat@matws.net> 2011
#
# 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/>.
#
import samba.getopt as options
import ldb
import string
import os
import tempfile
import logging
from samba.net import Net, LIBNET_JOIN_AUTOMATIC
import samba.ntacls
from samba.join import join_RODC, join_DC, join_subdomain
from samba.auth import system_session
from samba.samdb import SamDB
from samba.dcerpc import drsuapi
from samba.dcerpc.samr import DOMAIN_PASSWORD_COMPLEX, DOMAIN_PASSWORD_STORE_CLEARTEXT
from samba.netcmd import (
Command,
CommandError,
SuperCommand,
Option
)
from samba.netcmd.common import netcmd_get_domain_infos_via_cldap
from samba.samba3 import Samba3
from samba.samba3 import param as s3param
from samba.upgrade import upgrade_from_samba3
from samba.drs_utils import (
sendDsReplicaSync, drsuapi_connect, drsException,
sendRemoveDsServer)
from samba.dsdb import (
DS_DOMAIN_FUNCTION_2000,
DS_DOMAIN_FUNCTION_2003,
DS_DOMAIN_FUNCTION_2003_MIXED,
DS_DOMAIN_FUNCTION_2008,
DS_DOMAIN_FUNCTION_2008_R2,
DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL,
DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL,
UF_WORKSTATION_TRUST_ACCOUNT,
UF_SERVER_TRUST_ACCOUNT,
UF_TRUSTED_FOR_DELEGATION
)
def get_testparm_var(testparm, smbconf, varname):
cmd = "%s -s -l --parameter-name='%s' %s 2>/dev/null" % (testparm, varname, smbconf)
output = os.popen(cmd, 'r').readline()
return output.strip()
class cmd_domain_export_keytab(Command):
"""Dumps kerberos keys of the domain into a keytab"""
synopsis = "%prog <keytab> [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
takes_options = [
Option("--principal", help="extract only this principal", type=str),
]
takes_args = ["keytab"]
def run(self, keytab, credopts=None, sambaopts=None, versionopts=None, principal=None):
lp = sambaopts.get_loadparm()
net = Net(None, lp)
net.export_keytab(keytab=keytab, principal=principal)
class cmd_domain_info(Command):
"""Print basic info about a domain and the DC passed as parameter"""
synopsis = "%prog <ip_address> [options]"
takes_options = [
]
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
takes_args = ["address"]
def run(self, address, credopts=None, sambaopts=None, versionopts=None):
lp = sambaopts.get_loadparm()
try:
res = netcmd_get_domain_infos_via_cldap(lp, None, address)
print "Forest : %s" % res.forest
print "Domain : %s" % res.dns_domain
print "Netbios domain : %s" % res.domain_name
print "DC name : %s" % res.pdc_dns_name
print "DC netbios name : %s" % res.pdc_name
print "Server site : %s" % res.server_site
print "Client site : %s" % res.client_site
except RuntimeError:
raise CommandError("Invalid IP address '" + address + "'!")
class cmd_domain_join(Command):
"""Joins domain as either member or backup domain controller"""
synopsis = "%prog <dnsdomain> [DC|RODC|MEMBER|SUBDOMAIN] [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"versionopts": options.VersionOptions,
"credopts": options.CredentialsOptions,
}
takes_options = [
Option("--server", help="DC to join", type=str),
Option("--site", help="site to join", type=str),
Option("--targetdir", help="where to store provision", type=str),
Option("--parent-domain", help="parent domain to create subdomain under", type=str),
Option("--domain-critical-only",
help="only replicate critical domain objects",
action="store_true"),
Option("--machinepass", type=str, metavar="PASSWORD",
help="choose machine password (otherwise random)")
]
takes_args = ["domain", "role?"]
def run(self, domain, role=None, sambaopts=None, credopts=None,
versionopts=None, server=None, site=None, targetdir=None,
domain_critical_only=False, parent_domain=None, machinepass=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
net = Net(creds, lp, server=credopts.ipaddress)
if site is None:
site = "Default-First-Site-Name"
netbios_name = lp.get("netbios name")
if not role is None:
role = role.upper()
if role is None or role == "MEMBER":
(join_password, sid, domain_name) = net.join_member(domain,
netbios_name,
LIBNET_JOIN_AUTOMATIC,
machinepass=machinepass)
self.outf.write("Joined domain %s (%s)\n" % (domain_name, sid))
return
elif role == "DC":
join_DC(server=server, creds=creds, lp=lp, domain=domain,
site=site, netbios_name=netbios_name, targetdir=targetdir,
domain_critical_only=domain_critical_only,
machinepass=machinepass)
return
elif role == "RODC":
join_RODC(server=server, creds=creds, lp=lp, domain=domain,
site=site, netbios_name=netbios_name, targetdir=targetdir,
domain_critical_only=domain_critical_only,
machinepass=machinepass)
return
elif role == "SUBDOMAIN":
netbios_domain = lp.get("workgroup")
if parent_domain is None:
parent_domain = ".".join(domain.split(".")[1:])
join_subdomain(server=server, creds=creds, lp=lp, dnsdomain=domain, parent_domain=parent_domain,
site=site, netbios_name=netbios_name, netbios_domain=netbios_domain, targetdir=targetdir,
machinepass=machinepass)
return
else:
raise CommandError("Invalid role '%s' (possible values: MEMBER, DC, RODC, SUBDOMAIN)" % role)
class cmd_domain_demote(Command):
"""Demote ourselves from the role of Domain Controller"""
synopsis = "%prog [options]"
takes_options = [
Option("--server", help="DC to force replication before demote", type=str),
Option("--targetdir", help="where provision is stored", type=str),
]
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
def run(self, sambaopts=None, credopts=None,
versionopts=None, server=None, targetdir=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
net = Net(creds, lp, server=credopts.ipaddress)
netbios_name = lp.get("netbios name")
samdb = SamDB(session_info=system_session(), credentials=creds, lp=lp)
if not server:
res = samdb.search(expression='(&(objectClass=computer)(serverReferenceBL=*))', attrs=["dnsHostName", "name"])
if (len(res) == 0):
raise CommandError("Unable to search for servers")
if (len(res) == 1):
raise CommandError("You are the latest server in the domain")
server = None
for e in res:
if str(e["name"]).lower() != netbios_name.lower():
server = e["dnsHostName"]
break
ntds_guid = samdb.get_ntds_GUID()
msg = samdb.search(base=str(samdb.get_config_basedn()), scope=ldb.SCOPE_SUBTREE,
expression="(objectGUID=%s)" % ntds_guid,
attrs=['options'])
if len(msg) == 0 or "options" not in msg[0]:
raise CommandError("Failed to find options on %s" % ntds_guid)
ntds_dn = msg[0].dn
dsa_options = int(str(msg[0]['options']))
res = samdb.search(expression="(fSMORoleOwner=%s)" % str(ntds_dn),
controls=["search_options:1:2"])
if len(res) != 0:
raise CommandError("Current DC is still the owner of %d role(s), use the role command to transfer roles to another DC")
print "Using %s as partner server for the demotion" % server
(drsuapiBind, drsuapi_handle, supportedExtensions) = drsuapi_connect(server, lp, creds)
print "Desactivating inbound replication"
nmsg = ldb.Message()
nmsg.dn = msg[0].dn
dsa_options |= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
if not (dsa_options & DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL) and not samdb.am_rodc():
print "Asking partner server %s to synchronize from us" % server
for part in (samdb.get_schema_basedn(),
samdb.get_config_basedn(),
samdb.get_root_basedn()):
try:
sendDsReplicaSync(drsuapiBind, drsuapi_handle, ntds_guid, str(part), drsuapi.DRSUAPI_DRS_WRIT_REP)
except drsException, e:
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
raise CommandError("Error while sending a DsReplicaSync for partion %s" % str(part), e)
try:
remote_samdb = SamDB(url="ldap://%s" % server,
session_info=system_session(),
credentials=creds, lp=lp)
print "Changing userControl and container"
res = remote_samdb.search(base=str(remote_samdb.get_root_basedn()),
expression="(&(objectClass=user)(sAMAccountName=%s$))" %
netbios_name.upper(),
attrs=["userAccountControl"])
dc_dn = res[0].dn
uac = int(str(res[0]["userAccountControl"]))
except Exception, e:
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
raise CommandError("Error while changing account control", e)
if (len(res) != 1):
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
raise CommandError("Unable to find object with samaccountName = %s$"
" in the remote dc" % netbios_name.upper())
olduac = uac
uac ^= (UF_SERVER_TRUST_ACCOUNT|UF_TRUSTED_FOR_DELEGATION)
uac |= UF_WORKSTATION_TRUST_ACCOUNT
msg = ldb.Message()
msg.dn = dc_dn
msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
ldb.FLAG_MOD_REPLACE,
"userAccountControl")
try:
remote_samdb.modify(msg)
except Exception, e:
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
raise CommandError("Error while changing account control", e)
parent = msg.dn.parent()
rdn = str(res[0].dn)
rdn = string.replace(rdn, ",%s" % str(parent), "")
# Let's move to the Computer container
i = 0
newrdn = rdn
computer_dn = ldb.Dn(remote_samdb, "CN=Computers,%s" % str(remote_samdb.get_root_basedn()))
res = remote_samdb.search(base=computer_dn, expression=rdn, scope=ldb.SCOPE_ONELEVEL)
if (len(res) != 0):
res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
scope=ldb.SCOPE_ONELEVEL)
while(len(res) != 0 and i < 100):
i = i + 1
res = remote_samdb.search(base=computer_dn, expression="%s-%d" % (rdn, i),
scope=ldb.SCOPE_ONELEVEL)
if i == 100:
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
msg = ldb.Message()
msg.dn = dc_dn
msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
ldb.FLAG_MOD_REPLACE,
"userAccountControl")
remote_samdb.modify(msg)
raise CommandError("Unable to find a slot for renaming %s,"
" all names from %s-1 to %s-%d seemed used" %
(str(dc_dn), rdn, rdn, i - 9))
newrdn = "%s-%d" % (rdn, i)
try:
newdn = ldb.Dn(remote_samdb, "%s,%s" % (newrdn, str(computer_dn)))
remote_samdb.rename(dc_dn, newdn)
except Exception, e:
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
msg = ldb.Message()
msg.dn = dc_dn
msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
ldb.FLAG_MOD_REPLACE,
"userAccountControl")
remote_samdb.modify(msg)
raise CommandError("Error while renaming %s to %s" % (str(dc_dn), str(newdn)), e)
server_dsa_dn = samdb.get_serverName()
domain = remote_samdb.get_root_basedn()
try:
sendRemoveDsServer(drsuapiBind, drsuapi_handle, server_dsa_dn, domain)
except drsException, e:
print "Error while demoting, re-enabling inbound replication"
dsa_options ^= DS_NTDSDSA_OPT_DISABLE_INBOUND_REPL
nmsg["options"] = ldb.MessageElement(str(dsa_options), ldb.FLAG_MOD_REPLACE, "options")
samdb.modify(nmsg)
msg = ldb.Message()
msg.dn = newdn
msg["userAccountControl"] = ldb.MessageElement("%d" % uac,
ldb.FLAG_MOD_REPLACE,
"userAccountControl")
print str(dc_dn)
remote_samdb.modify(msg)
remote_samdb.rename(newdn, dc_dn)
raise CommandError("Error while sending a removeDsServer", e)
for s in ("CN=Entreprise,CN=Microsoft System Volumes,CN=System,CN=Configuration",
"CN=%s,CN=Microsoft System Volumes,CN=System,CN=Configuration" % lp.get("realm"),
"CN=Domain System Volumes (SYSVOL share),CN=File Replication Service,CN=System"):
try:
remote_samdb.delete(ldb.Dn(remote_samdb,
"%s,%s,%s" % (str(rdn), s, str(remote_samdb.get_root_basedn()))))
except ldb.LdbError, l:
pass
for s in ("CN=Entreprise,CN=NTFRS Subscriptions",
"CN=%s, CN=NTFRS Subscriptions" % lp.get("realm"),
"CN=Domain system Volumes (SYSVOL Share), CN=NTFRS Subscriptions",
"CN=NTFRS Subscriptions"):
try:
remote_samdb.delete(ldb.Dn(remote_samdb,
"%s,%s" % (s, str(newdn))))
except ldb.LdbError, l:
pass
self.outf.write("Demote successfull\n")
class cmd_domain_level(Command):
"""Raises domain and forest function levels"""
synopsis = "%prog (show|raise <options>) [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"credopts": options.CredentialsOptions,
"versionopts": options.VersionOptions,
}
takes_options = [
Option("-H", "--URL", help="LDB URL for database or target server", type=str,
metavar="URL", dest="H"),
Option("--quiet", help="Be quiet", action="store_true"),
Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2"],
help="The forest function level (2003 | 2008 | 2008_R2)"),
Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2"],
help="The domain function level (2003 | 2008 | 2008_R2)")
]
takes_args = ["subcommand"]
def run(self, subcommand, H=None, forest_level=None, domain_level=None,
quiet=False, credopts=None, sambaopts=None, versionopts=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp, fallback_machine=True)
samdb = SamDB(url=H, session_info=system_session(),
credentials=creds, lp=lp)
domain_dn = samdb.domain_dn()
res_forest = samdb.search("CN=Partitions,%s" % samdb.get_config_basedn(),
scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
assert len(res_forest) == 1
res_domain = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
attrs=["msDS-Behavior-Version", "nTMixedDomain"])
assert len(res_domain) == 1
res_dc_s = samdb.search("CN=Sites,%s" % samdb.get_config_basedn(),
scope=ldb.SCOPE_SUBTREE, expression="(objectClass=nTDSDSA)",
attrs=["msDS-Behavior-Version"])
assert len(res_dc_s) >= 1
try:
level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
min_level_dc = int(res_dc_s[0]["msDS-Behavior-Version"][0]) # Init value
for msg in res_dc_s:
if int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
min_level_dc = int(msg["msDS-Behavior-Version"][0])
if level_forest < 0 or level_domain < 0:
raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
if min_level_dc < 0:
raise CommandError("Lowest function level of a DC is invalid. Correct this or reprovision!")
if level_forest > level_domain:
raise CommandError("Forest function level is higher than the domain level(s). Correct this or reprovision!")
if level_domain > min_level_dc:
raise CommandError("Domain function level is higher than the lowest function level of a DC. Correct this or reprovision!")
except KeyError:
raise CommandError("Could not retrieve the actual domain, forest level and/or lowest DC function level!")
if subcommand == "show":
self.message("Domain and forest function level for domain '%s'" % domain_dn)
if level_forest == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2000 (Native). This isn't supported! Please raise!")
if min_level_dc == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
self.message("\nATTENTION: You run SAMBA 4 on a lowest function level of a DC lower than Windows 2003. This isn't supported! Please step-up or upgrade the concerning DC(s)!")
self.message("")
if level_forest == DS_DOMAIN_FUNCTION_2000:
outstr = "2000"
elif level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
outstr = "2003 with mixed domains/interim (NT4 DC support)"
elif level_forest == DS_DOMAIN_FUNCTION_2003:
outstr = "2003"
elif level_forest == DS_DOMAIN_FUNCTION_2008:
outstr = "2008"
elif level_forest == DS_DOMAIN_FUNCTION_2008_R2:
outstr = "2008 R2"
else:
outstr = "higher than 2008 R2"
self.message("Forest function level: (Windows) " + outstr)
if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0:
outstr = "2000 mixed (NT4 DC support)"
elif level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed == 0:
outstr = "2000"
elif level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
outstr = "2003 with mixed domains/interim (NT4 DC support)"
elif level_domain == DS_DOMAIN_FUNCTION_2003:
outstr = "2003"
elif level_domain == DS_DOMAIN_FUNCTION_2008:
outstr = "2008"
elif level_domain == DS_DOMAIN_FUNCTION_2008_R2:
outstr = "2008 R2"
else:
outstr = "higher than 2008 R2"
self.message("Domain function level: (Windows) " + outstr)
if min_level_dc == DS_DOMAIN_FUNCTION_2000:
outstr = "2000"
elif min_level_dc == DS_DOMAIN_FUNCTION_2003:
outstr = "2003"
elif min_level_dc == DS_DOMAIN_FUNCTION_2008:
outstr = "2008"
elif min_level_dc == DS_DOMAIN_FUNCTION_2008_R2:
outstr = "2008 R2"
else:
outstr = "higher than 2008 R2"
self.message("Lowest function level of a DC: (Windows) " + outstr)
elif subcommand == "raise":
msgs = []
if domain_level is not None:
if domain_level == "2003":
new_level_domain = DS_DOMAIN_FUNCTION_2003
elif domain_level == "2008":
new_level_domain = DS_DOMAIN_FUNCTION_2008
elif domain_level == "2008_R2":
new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
if new_level_domain <= level_domain and level_domain_mixed == 0:
raise CommandError("Domain function level can't be smaller than or equal to the actual one!")
if new_level_domain > min_level_dc:
raise CommandError("Domain function level can't be higher than the lowest function level of a DC!")
# Deactivate mixed/interim domain support
if level_domain_mixed != 0:
# Directly on the base DN
m = ldb.Message()
m.dn = ldb.Dn(samdb, domain_dn)
m["nTMixedDomain"] = ldb.MessageElement("0",
ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
samdb.modify(m)
# Under partitions
m = ldb.Message()
m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup") + ",CN=Partitions,%s" % ldb.get_config_basedn())
m["nTMixedDomain"] = ldb.MessageElement("0",
ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
try:
samdb.modify(m)
except ldb.LdbError, (enum, emsg):
if enum != ldb.ERR_UNWILLING_TO_PERFORM:
raise
# Directly on the base DN
m = ldb.Message()
m.dn = ldb.Dn(samdb, domain_dn)
m["msDS-Behavior-Version"]= ldb.MessageElement(
str(new_level_domain), ldb.FLAG_MOD_REPLACE,
"msDS-Behavior-Version")
samdb.modify(m)
# Under partitions
m = ldb.Message()
m.dn = ldb.Dn(samdb, "CN=" + lp.get("workgroup")
+ ",CN=Partitions,%s" % ldb.get_config_basedn())
m["msDS-Behavior-Version"]= ldb.MessageElement(
str(new_level_domain), ldb.FLAG_MOD_REPLACE,
"msDS-Behavior-Version")
try:
samdb.modify(m)
except ldb.LdbError, (enum, emsg):
if enum != ldb.ERR_UNWILLING_TO_PERFORM:
raise
level_domain = new_level_domain
msgs.append("Domain function level changed!")
if forest_level is not None:
if forest_level == "2003":
new_level_forest = DS_DOMAIN_FUNCTION_2003
elif forest_level == "2008":
new_level_forest = DS_DOMAIN_FUNCTION_2008
elif forest_level == "2008_R2":
new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
if new_level_forest <= level_forest:
raise CommandError("Forest function level can't be smaller than or equal to the actual one!")
if new_level_forest > level_domain:
raise CommandError("Forest function level can't be higher than the domain function level(s). Please raise it/them first!")
m = ldb.Message()
m.dn = ldb.Dn(samdb, "CN=Partitions,%s" % ldb.get_config_basedn())
m["msDS-Behavior-Version"]= ldb.MessageElement(
str(new_level_forest), ldb.FLAG_MOD_REPLACE,
"msDS-Behavior-Version")
samdb.modify(m)
msgs.append("Forest function level changed!")
msgs.append("All changes applied successfully!")
self.message("\n".join(msgs))
else:
raise CommandError("invalid argument: '%s' (choose from 'show', 'raise')" % subcommand)
class cmd_domain_passwordsettings(Command):
"""Sets password settings
Password complexity, history length, minimum password length, the minimum
and maximum password age) on a Samba4 server.
"""
synopsis = "%prog (show|set <options>) [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"versionopts": options.VersionOptions,
"credopts": options.CredentialsOptions,
}
takes_options = [
Option("-H", "--URL", help="LDB URL for database or target server", type=str,
metavar="URL", dest="H"),
Option("--quiet", help="Be quiet", action="store_true"),
Option("--complexity", type="choice", choices=["on","off","default"],
help="The password complexity (on | off | default). Default is 'on'"),
Option("--store-plaintext", type="choice", choices=["on","off","default"],
help="Store plaintext passwords where account have 'store passwords with reversible encryption' set (on | off | default). Default is 'off'"),
Option("--history-length",
help="The password history length (<integer> | default). Default is 24.", type=str),
Option("--min-pwd-length",
help="The minimum password length (<integer> | default). Default is 7.", type=str),
Option("--min-pwd-age",
help="The minimum password age (<integer in days> | default). Default is 1.", type=str),
Option("--max-pwd-age",
help="The maximum password age (<integer in days> | default). Default is 43.", type=str),
]
takes_args = ["subcommand"]
def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
quiet=False, complexity=None, store_plaintext=None, history_length=None,
min_pwd_length=None, credopts=None, sambaopts=None,
versionopts=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
samdb = SamDB(url=H, session_info=system_session(),
credentials=creds, lp=lp)
domain_dn = samdb.domain_dn()
res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
"minPwdAge", "maxPwdAge"])
assert(len(res) == 1)
try:
pwd_props = int(res[0]["pwdProperties"][0])
pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
cur_min_pwd_len = int(res[0]["minPwdLength"][0])
# ticks -> days
cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
if int(res[0]["maxPwdAge"][0]) == -0x8000000000000000:
cur_max_pwd_age = 0
else:
cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
except Exception, e:
raise CommandError("Could not retrieve password properties!", e)
if subcommand == "show":
self.message("Password informations for domain '%s'" % domain_dn)
self.message("")
if pwd_props & DOMAIN_PASSWORD_COMPLEX != 0:
self.message("Password complexity: on")
else:
self.message("Password complexity: off")
if pwd_props & DOMAIN_PASSWORD_STORE_CLEARTEXT != 0:
self.message("Store plaintext passwords: on")
else:
self.message("Store plaintext passwords: off")
self.message("Password history length: %d" % pwd_hist_len)
self.message("Minimum password length: %d" % cur_min_pwd_len)
self.message("Minimum password age (days): %d" % cur_min_pwd_age)
self.message("Maximum password age (days): %d" % cur_max_pwd_age)
elif subcommand == "set":
msgs = []
m = ldb.Message()
m.dn = ldb.Dn(samdb, domain_dn)
if complexity is not None:
if complexity == "on" or complexity == "default":
pwd_props = pwd_props | DOMAIN_PASSWORD_COMPLEX
msgs.append("Password complexity activated!")
elif complexity == "off":
pwd_props = pwd_props & (~DOMAIN_PASSWORD_COMPLEX)
msgs.append("Password complexity deactivated!")
if store_plaintext is not None:
if store_plaintext == "on" or store_plaintext == "default":
pwd_props = pwd_props | DOMAIN_PASSWORD_STORE_CLEARTEXT
msgs.append("Plaintext password storage for changed passwords activated!")
elif store_plaintext == "off":
pwd_props = pwd_props & (~DOMAIN_PASSWORD_STORE_CLEARTEXT)
msgs.append("Plaintext password storage for changed passwords deactivated!")
if complexity is not None or store_plaintext is not None:
m["pwdProperties"] = ldb.MessageElement(str(pwd_props),
ldb.FLAG_MOD_REPLACE, "pwdProperties")
if history_length is not None:
if history_length == "default":
pwd_hist_len = 24
else:
pwd_hist_len = int(history_length)
if pwd_hist_len < 0 or pwd_hist_len > 24:
raise CommandError("Password history length must be in the range of 0 to 24!")
m["pwdHistoryLength"] = ldb.MessageElement(str(pwd_hist_len),
ldb.FLAG_MOD_REPLACE, "pwdHistoryLength")
msgs.append("Password history length changed!")
if min_pwd_length is not None:
if min_pwd_length == "default":
min_pwd_len = 7
else:
min_pwd_len = int(min_pwd_length)
if min_pwd_len < 0 or min_pwd_len > 14:
raise CommandError("Minimum password length must be in the range of 0 to 14!")
m["minPwdLength"] = ldb.MessageElement(str(min_pwd_len),
ldb.FLAG_MOD_REPLACE, "minPwdLength")
msgs.append("Minimum password length changed!")
if min_pwd_age is not None:
if min_pwd_age == "default":
min_pwd_age = 1
else:
min_pwd_age = int(min_pwd_age)
if min_pwd_age < 0 or min_pwd_age > 998:
raise CommandError("Minimum password age must be in the range of 0 to 998!")
# days -> ticks
min_pwd_age_ticks = -int(min_pwd_age * (24 * 60 * 60 * 1e7))
m["minPwdAge"] = ldb.MessageElement(str(min_pwd_age_ticks),
ldb.FLAG_MOD_REPLACE, "minPwdAge")
msgs.append("Minimum password age changed!")
if max_pwd_age is not None:
if max_pwd_age == "default":
max_pwd_age = 43
else:
max_pwd_age = int(max_pwd_age)
if max_pwd_age < 0 or max_pwd_age > 999:
raise CommandError("Maximum password age must be in the range of 0 to 999!")
# days -> ticks
if max_pwd_age == 0:
max_pwd_age_ticks = -0x8000000000000000
else:
max_pwd_age_ticks = -int(max_pwd_age * (24 * 60 * 60 * 1e7))
m["maxPwdAge"] = ldb.MessageElement(str(max_pwd_age_ticks),
ldb.FLAG_MOD_REPLACE, "maxPwdAge")
msgs.append("Maximum password age changed!")
if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
if len(m) == 0:
raise CommandError("You must specify at least one option to set. Try --help")
samdb.modify(m)
msgs.append("All changes applied successfully!")
self.message("\n".join(msgs))
else:
raise CommandError("Wrong argument '%s'!" % subcommand)
class cmd_domain_samba3upgrade(Command):
"""Upgrade from Samba3 database to Samba4 AD database.
Specify either a directory with all samba3 databases and state files (with --dbdir) or
samba3 testparm utility (with --testparm).
"""
synopsis = "%prog [options] <samba3_smb_conf>"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"versionopts": options.VersionOptions
}
takes_options = [
Option("--dbdir", type="string", metavar="DIR",
help="Path to samba3 database directory"),
Option("--testparm", type="string", metavar="PATH",
help="Path to samba3 testparm utility from the previous installation. This allows the default paths of the previous installation to be followed"),
Option("--targetdir", type="string", metavar="DIR",
help="Path prefix where the new Samba 4.0 AD domain should be initialised"),
Option("--quiet", help="Be quiet", action="store_true"),
Option("--verbose", help="Be verbose", action="store_true"),
Option("--use-xattrs", type="choice", choices=["yes","no","auto"], metavar="[yes|no|auto]",
help="Define if we should use the native fs capabilities or a tdb file for storing attributes likes ntacl, auto tries to make an inteligent guess based on the user rights and system capabilities", default="auto"),
]
takes_args = ["smbconf"]
def run(self, smbconf=None, targetdir=None, dbdir=None, testparm=None,
quiet=False, verbose=False, use_xattrs=None, sambaopts=None, versionopts=None):
if not os.path.exists(smbconf):
raise CommandError("File %s does not exist" % smbconf)
if testparm and not os.path.exists(testparm):
raise CommandError("Testparm utility %s does not exist" % testparm)
if dbdir and not os.path.exists(dbdir):
raise CommandError("Directory %s does not exist" % dbdir)
if not dbdir and not testparm:
raise CommandError("Please specify either dbdir or testparm")
logger = self.get_logger()
if verbose:
logger.setLevel(logging.DEBUG)
elif quiet:
logger.setLevel(logging.WARNING)
else:
logger.setLevel(logging.INFO)
if dbdir and testparm:
logger.warning("both dbdir and testparm specified, ignoring dbdir.")
dbdir = None
lp = sambaopts.get_loadparm()
s3conf = s3param.get_context()
if sambaopts.realm:
s3conf.set("realm", sambaopts.realm)
if targetdir is not None:
if not os.path.isdir(targetdir):
os.mkdir(targetdir)
eadb = True
if use_xattrs == "yes":
eadb = False
elif use_xattrs == "auto" and not s3conf.get("posix:eadb"):
if targetdir:
tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(targetdir))
else:
tmpfile = tempfile.NamedTemporaryFile(dir=os.path.abspath(os.path.dirname(lp.get("private dir"))))
try:
try:
samba.ntacls.setntacl(lp, tmpfile.name,
"O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
eadb = False
except Exception:
# FIXME: Don't catch all exceptions here
logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
"If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
finally:
tmpfile.close()
# Set correct default values from dbdir or testparm
paths = {}
if dbdir:
paths["state directory"] = dbdir
paths["private dir"] = dbdir
paths["lock directory"] = dbdir
else:
paths["state directory"] = get_testparm_var(testparm, smbconf, "state directory")
paths["private dir"] = get_testparm_var(testparm, smbconf, "private dir")
paths["lock directory"] = get_testparm_var(testparm, smbconf, "lock directory")
# "testparm" from Samba 3 < 3.4.x is not aware of the parameter
# "state directory", instead make use of "lock directory"
if len(paths["state directory"]) == 0:
paths["state directory"] = paths["lock directory"]
for p in paths:
s3conf.set(p, paths[p])
# load smb.conf parameters
logger.info("Reading smb.conf")
s3conf.load(smbconf)
samba3 = Samba3(smbconf, s3conf)
logger.info("Provisioning")
upgrade_from_samba3(samba3, logger, targetdir, session_info=system_session(),
useeadb=eadb)
class cmd_domain(SuperCommand):
"""Domain management"""
subcommands = {}
subcommands["demote"] = cmd_domain_demote()
subcommands["exportkeytab"] = cmd_domain_export_keytab()
subcommands["info"] = cmd_domain_info()
subcommands["join"] = cmd_domain_join()
subcommands["level"] = cmd_domain_level()
subcommands["passwordsettings"] = cmd_domain_passwordsettings()
subcommands["samba3upgrade"] = cmd_domain_samba3upgrade()