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#!/usr/bin/python
#
# Raises domain and forest function levels
#
# Copyright Matthias Dieter Wallnoefer 2009
#
# 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 sys
# Find right directory when running from source tree
sys.path.insert(0, "bin/python")
import samba.getopt as options
import optparse
import ldb
from samba.auth import system_session
from samba.samdb import SamDB
from samba import DS_DOMAIN_FUNCTION_2000, DS_DOMAIN_FUNCTION_2003
from samba import DS_DOMAIN_FUNCTION_2003_MIXED, DS_DOMAIN_FUNCTION_2008
from samba import DS_DOMAIN_FUNCTION_2008_R2
parser = optparse.OptionParser("domainlevel (show | raise <options>)")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
parser.add_option_group(options.VersionOptions(parser))
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
parser.add_option("--quiet", help="Be quiet", action="store_true")
parser.add_option("--forest",
help="The forest function level (2000 | 2003 | 2008 | 2008_R2). We don't support the 2003 with mixed domains (NT4 DC support) level.", type=str)
parser.add_option("--domain",
help="The domain function level (2000 | 2003 | 2008 | 2008_R2). We don't support mixed/interim (NT4 DC support) levels.", type=str)
opts, args = parser.parse_args()
#
# print a message if quiet is not set
#
def message(text):
if not opts.quiet:
print text
if len(args) == 0:
parser.print_usage()
sys.exit(1)
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
samdb = SamDB(url=lp.get("sam database"), session_info=system_session(),
credentials=creds, lp=lp)
domain_dn = SamDB.domain_dn(samdb)
res_forest = samdb.search("CN=Partitions,CN=Configuration," + domain_dn,
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)
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])
if level_forest < 0 or level_domain < 0:
print "ERROR: Domain and/or forest functional level(s) is/are invalid. Correct them or reprovision!"
sys.exit(1)
if level_forest > level_domain:
print "ERROR: Forest function level is higher than the domain level(s). That can't be. Correct this or reprovision!"
sys.exit(1)
except:
print "ERROR: Could not retrieve the actual domain and/or forest level!"
if args[0] == "show":
print "So the levels can't be displayed!"
sys.exit(1)
if args[0] == "show":
message("Domain and forest function level for domain '" + domain_dn + "'")
if level_forest == DS_DOMAIN_FUNCTION_2003_MIXED:
message("\nATTENTION: You run SAMBA 4 on the 2003 with mixed domains (NT4 DC support) forest level. This isn't supported! Please raise!")
if (level_domain == DS_DOMAIN_FUNCTION_2000 and level_domain_mixed != 0) or level_domain == DS_DOMAIN_FUNCTION_2003_MIXED:
message("\nATTENTION: You run SAMBA 4 on a mixed/interim (NT4 DC support) domain level. This isn't supported! Please raise!")
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"
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"
message("Domain function level: (Windows) " + outstr)
elif args[0] == "raise":
msgs = []
if opts.domain is not None:
arg = opts.domain
if arg == "2000":
new_level_domain = DS_DOMAIN_FUNCTION_2000
elif arg == "2003":
new_level_domain = DS_DOMAIN_FUNCTION_2003
elif arg == "2008":
new_level_domain = DS_DOMAIN_FUNCTION_2008
elif arg == "2008_R2":
new_level_domain = DS_DOMAIN_FUNCTION_2008_R2
else:
print "ERROR: Wrong argument '" + arg + "'!"
sys.exit(1)
if new_level_domain <= level_domain and level_domain_mixed == 0:
print "ERROR: Domain function level can't be smaller equal to the actual one!"
sys.exit(1)
# Deactivate mixed/interim domain support
if level_domain_mixed != 0:
m = ldb.Message()
m.dn = ldb.Dn(samdb, domain_dn)
m["nTMixedDomain"] = ldb.MessageElement("0",
ldb.FLAG_MOD_REPLACE, "nTMixedDomain")
samdb.modify(m)
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)
level_domain = new_level_domain
msgs.append("Domain function level changed!")
if opts.forest is not None:
arg = opts.forest
if arg == "2000":
new_level_forest = DS_DOMAIN_FUNCTION_2000
elif arg == "2003":
new_level_forest = DS_DOMAIN_FUNCTION_2003
elif arg == "2008":
new_level_forest = DS_DOMAIN_FUNCTION_2008
elif arg == "2008_R2":
new_level_forest = DS_DOMAIN_FUNCTION_2008_R2
else:
print "ERROR: Wrong argument '" + arg + "'!"
sys.exit(1)
if new_level_forest <= level_forest:
print "ERROR: Forest function level can't be smaller equal to the actual one!"
sys.exit(1)
if new_level_forest > level_domain:
print "ERROR: Forest function level can't be higher than the domain function level(s). Please raise it/them first!"
sys.exit(1)
m = ldb.Message()
m.dn = ldb.Dn(samdb, "CN=Partitions,CN=Configuration,"
+ domain_dn)
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!")
message("\n".join(msgs))
else:
print "ERROR: Wrong argument '" + args[0] + "'!"
sys.exit(1)
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