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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, 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/>.
"""
Joining an IPA domain
"""
import krbV
from ipalib import api
from ipalib import Command, Str
from ipalib import errors
from ipalib import _
from ipaserver.install import installutils
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"),
default_from=lambda: unicode(installutils.get_fqdn()),
autofill=True,
#normalizer=lamda value: value.lower(),
),
)
takes_options = (
Str('realm',
doc=_("The IPA realm"),
default_from=lambda: 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)'),
),
)
has_output = tuple()
use_output_validation = False
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
try:
# First see if the host exists
kw = {'fqdn': hostname, 'all': True}
attrs_list = api.Command['host_show'](**kw)['result']
dn = attrs_list['dn']
# No error raised so far means that host entry exists
self.log.info('Host entry for %s already exists, '
'joining may fail on the client side '
'if not forced', hostname)
# 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)
api.Command['host_mod'](hostname, krbprincipalname=service)
self.log.info('No principal set, setting to %s', 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)
# Reload the attrs_list and dn so that we return update values
kw = {'fqdn': hostname, 'all': True}
attrs_list = api.Command['host_show'](**kw)['result']
dn = attrs_list['dn']
except errors.NotFound:
attrs_list = api.Command['host_add'](hostname,
force=True)['result']
dn = attrs_list['dn']
config = api.Command['config_show']()['result']
attrs_list['ipacertificatesubjectbase'] =\
config['ipacertificatesubjectbase']
return (dn, attrs_list)
api.register(join)
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