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netcmd: domain: move level command to domain/level.py

Signed-off-by: Rob van der Linde <rob@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Rob van der Linde 2023-03-31 13:09:14 +13:00 committed by Andrew Bartlett
parent e7ad2364a5
commit 8d4f6761b2
3 changed files with 226 additions and 192 deletions

View File

@ -104,24 +104,7 @@ from .info import cmd_domain_info
from .join import cmd_domain_join
from .keytab import cmd_domain_export_keytab
from .leave import cmd_domain_leave
def level_to_string(level):
"""turn the level enum number into a printable string."""
if level < DS_DOMAIN_FUNCTION_2000:
return "invalid"
strings = {
DS_DOMAIN_FUNCTION_2000: "2000",
DS_DOMAIN_FUNCTION_2003_MIXED: \
"2003 with mixed domains/interim (NT4 DC support)",
DS_DOMAIN_FUNCTION_2003: "2003",
DS_DOMAIN_FUNCTION_2008: "2008",
DS_DOMAIN_FUNCTION_2008_R2: "2008 R2",
DS_DOMAIN_FUNCTION_2012: "2012",
DS_DOMAIN_FUNCTION_2012_R2: "2012 R2",
DS_DOMAIN_FUNCTION_2016: "2016",
}
return strings.get(level, "higher than 2016")
from .level import cmd_domain_level
class cmd_domain_provision(Command):
@ -484,180 +467,6 @@ class cmd_domain_provision(Command):
return None
class cmd_domain_level(Command):
"""Raise 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("-q", "--quiet", help="Be quiet", action="store_true"), # unused
Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2", "2012", "2012_R2", "2016"],
help="The forest function level (2003 | 2008 | 2008_R2 | 2012 | 2012_R2 | 2016)"),
Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2", "2012", "2012_R2", "2016"],
help="The domain function level (2003 | 2008 | 2008_R2 | 2012 | 2012_R2 | 2016)")
]
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
# default values, since "msDS-Behavior-Version" does not exist on Windows 2000 AD
level_forest = DS_DOMAIN_FUNCTION_2000
level_domain = DS_DOMAIN_FUNCTION_2000
if "msDS-Behavior-Version" in res_forest[0]:
level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
if "msDS-Behavior-Version" in res_domain[0]:
level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
min_level_dc = None
for msg in res_dc_s:
if "msDS-Behavior-Version" in msg:
if min_level_dc is None or int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
min_level_dc = int(msg["msDS-Behavior-Version"][0])
else:
min_level_dc = DS_DOMAIN_FUNCTION_2000
# well, this is the least
break
if level_forest < DS_DOMAIN_FUNCTION_2000 or level_domain < DS_DOMAIN_FUNCTION_2000:
raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
if min_level_dc < DS_DOMAIN_FUNCTION_2000:
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!")
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("")
outstr = level_to_string(level_forest)
self.message("Forest function level: (Windows) " + outstr)
if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed:
outstr = "2000 mixed (NT4 DC support)"
else:
outstr = level_to_string(level_domain)
self.message("Domain function level: (Windows) " + outstr)
outstr = level_to_string(min_level_dc)
self.message("Lowest function level of a DC: (Windows) " + outstr)
elif subcommand == "raise":
msgs = []
if domain_level is not None:
new_level_domain = string_to_level(domain_level)
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" % samdb.get_config_basedn())
m["nTMixedDomain"] = ldb.MessageElement("0",
ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
try:
samdb.modify(m)
except ldb.LdbError as e:
(enum, emsg) = e.args
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" % samdb.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 as e2:
(enum, emsg) = e2.args
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:
new_level_forest = string_to_level(forest_level)
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" % samdb.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_show(Command):
"""Display current password settings for the domain."""

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@ -29,6 +29,7 @@ from samba.dsdb import (
DS_DOMAIN_FUNCTION_2008_R2,
DS_DOMAIN_FUNCTION_2012,
DS_DOMAIN_FUNCTION_2012_R2,
DS_DOMAIN_FUNCTION_2003_MIXED,
DS_DOMAIN_FUNCTION_2016
)
from samba.netcmd import CommandError, Option
@ -90,3 +91,21 @@ def string_to_level(string):
return string_version_to_constant[string]
except KeyError as e:
raise CommandError(f"'{string}' is not a valid domain level")
def level_to_string(level):
"""turn the level enum number into a printable string."""
if level < DS_DOMAIN_FUNCTION_2000:
return "invalid"
strings = {
DS_DOMAIN_FUNCTION_2000: "2000",
DS_DOMAIN_FUNCTION_2003_MIXED: \
"2003 with mixed domains/interim (NT4 DC support)",
DS_DOMAIN_FUNCTION_2003: "2003",
DS_DOMAIN_FUNCTION_2008: "2008",
DS_DOMAIN_FUNCTION_2008_R2: "2008 R2",
DS_DOMAIN_FUNCTION_2012: "2012",
DS_DOMAIN_FUNCTION_2012_R2: "2012 R2",
DS_DOMAIN_FUNCTION_2016: "2016",
}
return strings.get(level, "higher than 2016")

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@ -0,0 +1,206 @@
# domain management - domain level
#
# Copyright Matthias Dieter Wallnoefer 2009
# Copyright Andrew Kroeger 2009
# Copyright Jelmer Vernooij 2007-2012
# Copyright Giampaolo Lauria 2011
# Copyright Matthieu Patou <mat@matws.net> 2011
# Copyright Andrew Bartlett 2008-2015
# Copyright Stefan Metzmacher 2012
#
# 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 ldb
import samba.getopt as options
from samba.auth import system_session
from samba.dsdb import DS_DOMAIN_FUNCTION_2000
from samba.netcmd import Command, CommandError, Option
from samba.samdb import SamDB
from .common import level_to_string, string_to_level
class cmd_domain_level(Command):
"""Raise 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("-q", "--quiet", help="Be quiet", action="store_true"), # unused
Option("--forest-level", type="choice", choices=["2003", "2008", "2008_R2", "2012", "2012_R2", "2016"],
help="The forest function level (2003 | 2008 | 2008_R2 | 2012 | 2012_R2 | 2016)"),
Option("--domain-level", type="choice", choices=["2003", "2008", "2008_R2", "2012", "2012_R2", "2016"],
help="The domain function level (2003 | 2008 | 2008_R2 | 2012 | 2012_R2 | 2016)")
]
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
# default values, since "msDS-Behavior-Version" does not exist on Windows 2000 AD
level_forest = DS_DOMAIN_FUNCTION_2000
level_domain = DS_DOMAIN_FUNCTION_2000
if "msDS-Behavior-Version" in res_forest[0]:
level_forest = int(res_forest[0]["msDS-Behavior-Version"][0])
if "msDS-Behavior-Version" in res_domain[0]:
level_domain = int(res_domain[0]["msDS-Behavior-Version"][0])
level_domain_mixed = int(res_domain[0]["nTMixedDomain"][0])
min_level_dc = None
for msg in res_dc_s:
if "msDS-Behavior-Version" in msg:
if min_level_dc is None or int(msg["msDS-Behavior-Version"][0]) < min_level_dc:
min_level_dc = int(msg["msDS-Behavior-Version"][0])
else:
min_level_dc = DS_DOMAIN_FUNCTION_2000
# well, this is the least
break
if level_forest < DS_DOMAIN_FUNCTION_2000 or level_domain < DS_DOMAIN_FUNCTION_2000:
raise CommandError("Domain and/or forest function level(s) is/are invalid. Correct them or reprovision!")
if min_level_dc < DS_DOMAIN_FUNCTION_2000:
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!")
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("")
outstr = level_to_string(level_forest)
self.message("Forest function level: (Windows) " + outstr)
if level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed:
outstr = "2000 mixed (NT4 DC support)"
else:
outstr = level_to_string(level_domain)
self.message("Domain function level: (Windows) " + outstr)
outstr = level_to_string(min_level_dc)
self.message("Lowest function level of a DC: (Windows) " + outstr)
elif subcommand == "raise":
msgs = []
if domain_level is not None:
new_level_domain = string_to_level(domain_level)
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" % samdb.get_config_basedn())
m["nTMixedDomain"] = ldb.MessageElement("0",
ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
try:
samdb.modify(m)
except ldb.LdbError as e:
(enum, emsg) = e.args
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" % samdb.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 as e2:
(enum, emsg) = e2.args
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:
new_level_forest = string_to_level(forest_level)
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" % samdb.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)