diff options
Diffstat (limited to 'source4/scripting/python/samba/netcmd/domainlevel.py')
| -rw-r--r-- | source4/scripting/python/samba/netcmd/domainlevel.py | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/source4/scripting/python/samba/netcmd/domainlevel.py b/source4/scripting/python/samba/netcmd/domainlevel.py new file mode 100644 index 0000000000..1c12bde0c6 --- /dev/null +++ b/source4/scripting/python/samba/netcmd/domainlevel.py @@ -0,0 +1,229 @@ +#!/usr/bin/python +# +# Raises domain and forest function levels +# +# Copyright Matthias Dieter Wallnoefer 2009 +# Copyright Jelmer Vernooij 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/>. +# + +# Notice: At the moment we have some more checks to do here on the special +# attributes (consider attribute "msDS-Behavior-Version). This is due to the +# fact that we on s4 LDB don't implement their change policy (only certain +# values, only increments possible...) yet. + +import samba.getopt as options +import ldb + +from samba.auth import system_session +from samba.netcmd import ( + Command, + CommandError, + Option, + ) +from samba.samdb import SamDB +from samba import ( + DS_DOMAIN_FUNCTION_2000, + DS_DOMAIN_FUNCTION_2003, + DS_DOMAIN_FUNCTION_2003_MIXED, + DS_DOMAIN_FUNCTION_2008, + DS_DOMAIN_FUNCTION_2008_R2, + DS_DC_FUNCTION_2000, + DS_DC_FUNCTION_2003, + DS_DC_FUNCTION_2008, + DS_DC_FUNCTION_2008_R2, + ) + +class cmd_domainlevel(Command): + """Raises domain and forest function levels.""" + + synopsis = "(show | raise <options>)" + + takes_optiongroups = { + "sambaopts": options.SambaOptions, + "credopts": options.CredentialsOptions, + "versionopts": options.VersionOptions, + } + + takes_options = [ + Option("-H", help="LDB URL for database or target server", type=str), + Option("--quiet", help="Be quiet", action="store_true"), + Option("--forest", type="choice", choices=["2003", "2008", "2008_R2"], + help="The forest function level (2003 | 2008 | 2008_R2)"), + Option("--domain", 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=None, domain=None, quiet=False, + credopts=None, sambaopts=None, versionopts=None): + lp = sambaopts.get_loadparm() + creds = credopts.get_credentials(lp) + + if H is not None: + url = H + else: + url = lp.get("sam database") + + samdb = SamDB(url=url, 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) + + res_dc_s = samdb.search("CN=Sites,CN=Configuration," + domain_dn, + 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 '" + domain_dn + "'") + if level_forest < DS_DOMAIN_FUNCTION_2003: + self.message("\nATTENTION: You run SAMBA 4 on a forest function level lower than Windows 2003 (Native). This isn't supported! Please raise!") + if level_domain < DS_DOMAIN_FUNCTION_2003: + self.message("\nATTENTION: You run SAMBA 4 on a domain function level lower than Windows 2003 (Native). This isn't supported! Please raise!") + if min_level_dc < DS_DC_FUNCTION_2003: + 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_DC_FUNCTION_2000: + outstr = "2000" + elif min_level_dc == DS_DC_FUNCTION_2003: + outstr = "2003" + elif min_level_dc == DS_DC_FUNCTION_2008: + outstr = "2008" + elif min_level_dc == DS_DC_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 is not None: + if domain == "2003": + new_level_domain = DS_DOMAIN_FUNCTION_2003 + elif domain == "2008": + new_level_domain = DS_DOMAIN_FUNCTION_2008 + elif domain == "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 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: + 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 forest is not None: + if forest == "2003": + new_level_forest = DS_DOMAIN_FUNCTION_2003 + elif forest == "2008": + new_level_forest = DS_DOMAIN_FUNCTION_2008 + elif forest == "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 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,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!") + self.message("\n".join(msgs)) + else: + raise CommandError("Wrong argument '%s'!" % subcommand) |