def join_finalise(ctx):
'''finalise the join, mark us synchronised and setup secrets db'''
print "Sending DsReplicateUpdateRefs for all the partitions"
ctx.send_DsReplicaUpdateRefs(ctx.schema_dn)
ctx.send_DsReplicaUpdateRefs(ctx.config_dn)
ctx.send_DsReplicaUpdateRefs(ctx.base_dn)
print "Setting isSynchronized and dsServiceName"
m = ldb.Message()
m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE,
"isSynchronized")
m["dsServiceName"] = ldb.MessageElement(
"<GUID=%s>" % str(ctx.ntds_guid), ldb.FLAG_MOD_REPLACE,
"dsServiceName")
ctx.local_samdb.modify(m)
if ctx.subdomain:
return
secrets_ldb = Ldb(ctx.paths.secrets,
session_info=system_session(),
lp=ctx.lp)
print "Setting up secrets database"
secretsdb_self_join(secrets_ldb,
domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=security.dom_sid(ctx.domsid),
machinepass=ctx.acct_pass,
secure_channel_type=ctx.secure_channel_type,
key_version_number=ctx.key_version_number)
def join_finalise(ctx):
"""finalise the join, mark us synchronised and setup secrets db"""
print "Sending DsReplicateUpdateRefs for all the partitions"
ctx.send_DsReplicaUpdateRefs(ctx.schema_dn)
ctx.send_DsReplicaUpdateRefs(ctx.config_dn)
ctx.send_DsReplicaUpdateRefs(ctx.base_dn)
print "Setting isSynchronized and dsServiceName"
m = ldb.Message()
m.dn = ldb.Dn(ctx.local_samdb, "@ROOTDSE")
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid), ldb.FLAG_MOD_REPLACE, "dsServiceName")
ctx.local_samdb.modify(m)
if ctx.subdomain:
return
secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
print "Setting up secrets database"
secretsdb_self_join(
secrets_ldb,
domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=security.dom_sid(ctx.domsid),
machinepass=ctx.acct_pass,
secure_channel_type=ctx.secure_channel_type,
key_version_number=ctx.key_version_number,
)
def update_machine_account_password(samdb, secrets_ldb, names):
"""Update (change) the password of the current DC both in the SAM db and in
secret one
:param samdb: An LDB object related to the sam.ldb file of a given provision
:param secrets_ldb: An LDB object related to the secrets.ldb file of a given
provision
:param names: List of key provision parameters"""
expression = "samAccountName=%s$" % names.netbiosname
secrets_msg = secrets_ldb.search(expression=expression,
attrs=["secureChannelType"])
if int(secrets_msg[0]["secureChannelType"][0]) == SEC_CHAN_BDC:
res = samdb.search(expression=expression, attrs=[])
assert (len(res) == 1)
msg = ldb.Message(res[0].dn)
machinepass = samba.generate_random_machine_password(128, 255)
mputf16 = machinepass.encode('utf-16-le')
msg["clearTextPassword"] = ldb.MessageElement(mputf16,
ldb.FLAG_MOD_REPLACE,
"clearTextPassword")
samdb.modify(msg)
res = samdb.search(expression=("samAccountName=%s$" %
names.netbiosname),
attrs=["msDs-keyVersionNumber"])
assert (len(res) == 1)
kvno = int(str(res[0]["msDs-keyVersionNumber"]))
secChanType = int(secrets_msg[0]["secureChannelType"][0])
secretsdb_self_join(secrets_ldb,
domain=names.domain,
realm=names.realm,
domainsid=names.domainsid,
dnsdomain=names.dnsdomain,
netbiosname=names.netbiosname,
machinepass=machinepass,
key_version_number=kvno,
secure_channel_type=secChanType)
else:
raise ProvisioningError("Unable to find a Secure Channel"
"of type SEC_CHAN_BDC")
def join_finalise(ctx):
'''finalise the join, mark us synchronised and setup secrets db'''
print "Setting isSynchronized"
m = ldb.Message()
m.dn = ldb.Dn(ctx.samdb, '@ROOTDSE')
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
ctx.samdb.modify(m)
secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
print "Setting up secrets database"
secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=security.dom_sid(ctx.domsid),
machinepass=ctx.acct_pass,
secure_channel_type=ctx.secure_channel_type,
key_version_number=ctx.key_version_number)
def join_finalise(ctx):
'''finalise the join, mark us synchronised and setup secrets db'''
print "Setting isSynchronized"
m = ldb.Message()
m.dn = ldb.Dn(ctx.samdb, '@ROOTDSE')
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
ctx.samdb.modify(m)
secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
print "Setting up secrets database"
secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=security.dom_sid(ctx.domsid),
machinepass=ctx.acct_pass,
secure_channel_type=ctx.secure_channel_type,
key_version_number=ctx.key_version_number)
def update_machine_account_password(samdb, secrets_ldb, names):
"""Update (change) the password of the current DC both in the SAM db and in
secret one
:param samdb: An LDB object related to the sam.ldb file of a given provision
:param secrets_ldb: An LDB object related to the secrets.ldb file of a given
provision
:param names: List of key provision parameters"""
expression = "samAccountName=%s$" % names.netbiosname
secrets_msg = secrets_ldb.search(expression=expression,
attrs=["secureChannelType"])
if int(secrets_msg[0]["secureChannelType"][0]) == SEC_CHAN_BDC:
res = samdb.search(expression=expression, attrs=[])
assert(len(res) == 1)
msg = ldb.Message(res[0].dn)
machinepass = samba.generate_random_password(128, 255)
mputf16 = machinepass.encode('utf-16-le')
msg["clearTextPassword"] = ldb.MessageElement(mputf16,
ldb.FLAG_MOD_REPLACE,
"clearTextPassword")
samdb.modify(msg)
res = samdb.search(expression=("samAccountName=%s$" % names.netbiosname),
attrs=["msDs-keyVersionNumber"])
assert(len(res) == 1)
kvno = int(str(res[0]["msDs-keyVersionNumber"]))
secChanType = int(secrets_msg[0]["secureChannelType"][0])
secretsdb_self_join(secrets_ldb, domain=names.domain,
realm=names.realm,
domainsid=names.domainsid,
dnsdomain=names.dnsdomain,
netbiosname=names.netbiosname,
machinepass=machinepass,
key_version_number=kvno,
secure_channel_type=secChanType)
else:
raise ProvisioningError("Unable to find a Secure Channel"
"of type SEC_CHAN_BDC")
def run(self,
sambaopts=None,
credopts=None,
backup_file=None,
targetdir=None,
newservername=None,
host_ip=None,
host_ip6=None):
if not (backup_file and os.path.exists(backup_file)):
raise CommandError('Backup file not found.')
if targetdir is None:
raise CommandError('Please specify a target directory')
# allow restoredc to install into a directory prepopulated by selftest
if (os.path.exists(targetdir) and os.listdir(targetdir)
and os.environ.get('SAMBA_SELFTEST') != '1'):
raise CommandError('Target directory is not empty')
if not newservername:
raise CommandError('Server name required')
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
logger.addHandler(logging.StreamHandler(sys.stdout))
# ldapcmp prefers the server's netBIOS name in upper-case
newservername = newservername.upper()
# extract the backup .tar to a temp directory
targetdir = os.path.abspath(targetdir)
tf = tarfile.open(backup_file)
tf.extractall(targetdir)
tf.close()
# use the smb.conf that got backed up, by default (save what was
# actually backed up, before we mess with it)
smbconf = os.path.join(targetdir, 'etc', 'smb.conf')
shutil.copyfile(smbconf, smbconf + ".orig")
# if a smb.conf was specified on the cmd line, then use that instead
cli_smbconf = sambaopts.get_loadparm_path()
if cli_smbconf:
logger.info("Using %s as restored domain's smb.conf" % cli_smbconf)
shutil.copyfile(cli_smbconf, smbconf)
lp = samba.param.LoadParm()
lp.load(smbconf)
# open a DB connection to the restored DB
private_dir = os.path.join(targetdir, 'private')
samdb_path = os.path.join(private_dir, 'sam.ldb')
samdb = SamDB(url=samdb_path, session_info=system_session(), lp=lp)
# Create account using the join_add_objects function in the join object
# We need namingContexts, account control flags, and the sid saved by
# the backup process.
res = samdb.search(base="",
scope=ldb.SCOPE_BASE,
attrs=['namingContexts'])
ncs = [str(r) for r in res[0].get('namingContexts')]
creds = credopts.get_credentials(lp)
ctx = DCJoinContext(logger,
creds=creds,
lp=lp,
forced_local_samdb=samdb,
netbios_name=newservername)
ctx.nc_list = ncs
ctx.full_nc_list = ncs
ctx.userAccountControl = (samba.dsdb.UF_SERVER_TRUST_ACCOUNT
| samba.dsdb.UF_TRUSTED_FOR_DELEGATION)
# rewrite the smb.conf to make sure it uses the new targetdir settings.
# (This doesn't update all filepaths in a customized config, but it
# corrects the same paths that get set by a new provision)
logger.info('Updating basic smb.conf settings...')
make_smbconf(smbconf,
newservername,
ctx.domain_name,
ctx.realm,
targetdir,
lp=lp,
serverrole="active directory domain controller")
# Get the SID saved by the backup process and create account
res = samdb.search(base=ldb.Dn(samdb, "@SAMBA_DSDB"),
scope=ldb.SCOPE_BASE,
attrs=['sidForRestore', 'backupRename'])
is_rename = True if 'backupRename' in res[0] else False
sid = res[0].get('sidForRestore')[0]
logger.info('Creating account with SID: ' + str(sid))
ctx.join_add_objects(specified_sid=dom_sid(sid))
m = ldb.Message()
m.dn = ldb.Dn(samdb, '@ROOTDSE')
ntds_guid = str(ctx.ntds_guid)
m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % ntds_guid,
ldb.FLAG_MOD_REPLACE,
"dsServiceName")
samdb.modify(m)
# if we renamed the backed-up domain, then we need to add the DNS
# objects for the new realm (we do this in the restore, now that we
# know the new DC's IP address)
if is_rename:
self.register_dns_zone(logger, samdb, lp, ctx.ntds_guid, host_ip,
host_ip6)
secrets_path = os.path.join(private_dir, 'secrets.ldb')
secrets_ldb = Ldb(secrets_path, session_info=system_session(), lp=lp)
secretsdb_self_join(secrets_ldb,
domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=ctx.domsid,
machinepass=ctx.acct_pass,
key_version_number=ctx.key_version_number,
secure_channel_type=misc.SEC_CHAN_BDC)
# Seize DNS roles
domain_dn = samdb.domain_dn()
forest_dn = samba.dn_from_dns_name(samdb.forest_dns_name())
domaindns_dn = ("CN=Infrastructure,DC=DomainDnsZones,", domain_dn)
forestdns_dn = ("CN=Infrastructure,DC=ForestDnsZones,", forest_dn)
for dn_prefix, dns_dn in [forestdns_dn, domaindns_dn]:
if dns_dn not in ncs:
continue
full_dn = dn_prefix + dns_dn
m = ldb.Message()
m.dn = ldb.Dn(samdb, full_dn)
m["fSMORoleOwner"] = ldb.MessageElement(samdb.get_dsServiceName(),
ldb.FLAG_MOD_REPLACE,
"fSMORoleOwner")
samdb.modify(m)
# Seize other roles
for role in ['rid', 'pdc', 'naming', 'infrastructure', 'schema']:
self.seize_role(role, samdb, force=True)
# Get all DCs and remove them (this ensures these DCs cannot
# replicate because they will not have a password)
search_expr = "(&(objectClass=Server)(serverReference=*))"
res = samdb.search(samdb.get_config_basedn(),
scope=ldb.SCOPE_SUBTREE,
expression=search_expr)
for m in res:
cn = m.get('cn')[0]
if cn != newservername:
remove_dc(samdb, logger, cn)
# Remove the repsFrom and repsTo from each NC to ensure we do
# not try (and fail) to talk to the old DCs
for nc in ncs:
msg = ldb.Message()
msg.dn = ldb.Dn(samdb, nc)
msg["repsFrom"] = ldb.MessageElement([], ldb.FLAG_MOD_REPLACE,
"repsFrom")
msg["repsTo"] = ldb.MessageElement([], ldb.FLAG_MOD_REPLACE,
"repsTo")
samdb.modify(msg)
# Update the krbtgt passwords twice, ensuring no tickets from
# the old domain are valid
update_krbtgt_account_password(samdb)
update_krbtgt_account_password(samdb)
# restore the sysvol directory from the backup tar file, including the
# original NTACLs. Note that the backup_restore() will fail if not root
sysvol_tar = os.path.join(targetdir, 'sysvol.tar.gz')
dest_sysvol_dir = lp.get('path', 'sysvol')
if not os.path.exists(dest_sysvol_dir):
os.makedirs(dest_sysvol_dir)
backup_restore(sysvol_tar, dest_sysvol_dir, samdb, smbconf)
os.remove(sysvol_tar)
# fix up any stale links to the old DCs we just removed
logger.info("Fixing up any remaining references to the old DCs...")
self.fix_old_dc_references(samdb)
# Remove DB markers added by the backup process
m = ldb.Message()
m.dn = ldb.Dn(samdb, "@SAMBA_DSDB")
m["backupDate"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE,
"backupDate")
m["sidForRestore"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE,
"sidForRestore")
if is_rename:
m["backupRename"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE,
"backupRename")
samdb.modify(m)
logger.info("Backup file successfully restored to %s" % targetdir)
logger.info("Please check the smb.conf settings are correct before "
"starting samba.")
def join_finalise(ctx):
"""Finalise the join, mark us synchronised and setup secrets db."""
logger = logging.getLogger("provision")
logger.addHandler(logging.StreamHandler(sys.stdout))
# FIXME we shouldn't do this in all cases
# If for some reasons we joined in another site than the one of
# DC we just replicated from then we don't need to send the updatereplicateref
# as replication between sites is time based and on the initiative of the
# requesting DC
print "Sending DsReplicateUpdateRefs for all the replicated partitions"
for nc in ctx.full_nc_list:
ctx.send_DsReplicaUpdateRefs(nc)
if ctx.RODC:
print "Setting RODC invocationId"
ctx.local_samdb.set_invocation_id(str(ctx.invocation_id))
ctx.local_samdb.set_opaque_integer("domainFunctionality",
ctx.behavior_version)
m = ldb.Message()
m.dn = ldb.Dn(ctx.local_samdb, "%s" % ctx.ntds_dn)
m["invocationId"] = ldb.MessageElement(ndr_pack(ctx.invocation_id),
ldb.FLAG_MOD_REPLACE,
"invocationId")
ctx.local_samdb.modify(m)
# Note: as RODC the invocationId is only stored
# on the RODC itself, the other DCs never see it.
#
# Thats is why we fix up the replPropertyMetaData stamp
# for the 'invocationId' attribute, we need to change
# the 'version' to '0', this is what windows 2008r2 does as RODC
#
# This means if the object on a RWDC ever gets a invocationId
# attribute, it will have version '1' (or higher), which will
# will overwrite the RODC local value.
ctx.local_samdb.set_attribute_replmetadata_version(m.dn,
"invocationId",
0)
print "Setting isSynchronized and dsServiceName"
m = ldb.Message()
m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid),
ldb.FLAG_MOD_REPLACE, "dsServiceName")
ctx.local_samdb.modify(m)
if ctx.subdomain:
return
secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)
print "Setting up secrets database"
secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
realm=ctx.realm,
dnsdomain=ctx.dnsdomain,
netbiosname=ctx.myname,
domainsid=security.dom_sid(ctx.domsid),
machinepass=ctx.acct_pass,
secure_channel_type=ctx.secure_channel_type,
key_version_number=ctx.key_version_number)
if ctx.dns_backend.startswith("BIND9_"):
dnspass = samba.generate_random_password(128, 255)
setup_bind9_dns(ctx.local_samdb, secrets_ldb, security.dom_sid(ctx.domsid),
ctx.names, ctx.paths, ctx.lp, logger,
dns_backend=ctx.dns_backend,
dnspass=dnspass, os_level=ctx.behavior_version,
targetdir=ctx.targetdir)
