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# Authors:
# Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2009 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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; version 2 only
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
Joining an IPA domain
"""
from ipalib import api, util
from ipalib import Command, Str
from ipalib import errors
import krbV
def get_realm():
"""
Returns the default kerberos realm configured for this server.
"""
krbctx = krbV.default_context()
return unicode(krbctx.default_realm)
def validate_host(ugettext, cn):
"""
Require at least one dot in the hostname (to support localhost.localdomain)
"""
dots = len(cn.split('.'))
if dots < 2:
return 'Fully-qualified hostname required'
return None
class join(Command):
"""Join an IPA domain"""
takes_args = (
Str('cn',
validate_host,
cli_name='hostname',
doc="The hostname to register as",
create_default=lambda **kw: unicode(util.get_fqdn()),
autofill=True,
#normalizer=lamda value: value.lower(),
),
)
takes_options= (
Str('realm',
doc="The IPA realm",
create_default=lambda **kw: get_realm(),
autofill=True,
),
Str('nshardwareplatform?',
cli_name='platform',
doc='Hardware platform of the host (e.g. Lenovo T61)',
),
Str('nsosversion?',
cli_name='os',
doc='Operating System and version of the host (e.g. Fedora 9)',
),
)
def execute(self, hostname, **kw):
"""
Execute the machine join operation.
Returns the entry as it will be created in LDAP.
:param hostname: The name of the host joined
:param kw: Keyword arguments for the other attributes.
"""
assert 'cn' not in kw
ldap = self.api.Backend.ldap2
host = None
try:
# First see if the host exists
kw = {'fqdn': hostname, 'all': True}
(dn, attrs_list) = api.Command['host_show'](**kw)
# If no principal name is set yet we need to try to add
# one.
if 'krbprincipalname' not in attrs_list:
service = "host/%s@%s" % (hostname, api.env.realm)
(d, a) = api.Command['host_mod'](hostname, krbprincipalname=service)
# It exists, can we write the password attributes?
allowed = ldap.can_write(dn, 'krblastpwdchange')
if not allowed:
raise errors.ACIError(info="Insufficient 'write' privilege to the 'krbLastPwdChange' attribute of entry '%s'." % dn)
kw = {'fqdn': hostname, 'all': True}
(dn, attrs_list) = api.Command['host_show'](**kw)
except errors.NotFound:
(dn, attrs_list) = api.Command['host_add'](hostname)
return (dn, attrs_list)
api.register(join)
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