mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-23 07:33:27 -06:00
70c3cd7f48
The ipa_certupdate, ipachangeconf, ipadiscovery and ntpconf modules depend on ipaplatform. Move them to ipaclient.install as they are used only from the client installer. https://fedorahosted.org/freeipa/ticket/6474 Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
505 lines
18 KiB
Python
Executable File
505 lines
18 KiB
Python
Executable File
#!/usr/bin/python2 -E
|
|
#
|
|
# Authors:
|
|
# Rob Crittenden <rcritten@redhat.com>
|
|
#
|
|
# Copyright (C) 2012 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/>.
|
|
#
|
|
# Configure the automount client for ldap.
|
|
|
|
from __future__ import print_function
|
|
|
|
import sys
|
|
import os
|
|
import time
|
|
import tempfile
|
|
import gssapi
|
|
|
|
try:
|
|
from xml.etree import cElementTree as etree
|
|
except ImportError:
|
|
from xml.etree import ElementTree as etree
|
|
|
|
import SSSDConfig
|
|
# pylint: disable=import-error
|
|
from six.moves.urllib.parse import urlsplit
|
|
# pylint: enable=import-error
|
|
|
|
from optparse import OptionParser # pylint: disable=deprecated-module
|
|
|
|
from ipaclient.install import ipachangeconf, ipadiscovery
|
|
from ipalib import api, errors
|
|
from ipalib.install import sysrestore
|
|
from ipalib.install.kinit import kinit_keytab
|
|
from ipapython import ipautil
|
|
from ipapython.ipa_log_manager import root_logger, standard_logging_setup
|
|
from ipapython.dn import DN
|
|
from ipaplatform.constants import constants
|
|
from ipaplatform.tasks import tasks
|
|
from ipaplatform import services
|
|
from ipaplatform.paths import paths
|
|
|
|
def parse_options():
|
|
usage = "%prog [options]\n"
|
|
parser = OptionParser(usage=usage)
|
|
parser.add_option("--server", dest="server", help="FQDN of IPA server")
|
|
parser.add_option("--location", dest="location", help="Automount location",
|
|
default="default")
|
|
parser.add_option("-S", "--no-sssd", dest="sssd",
|
|
action="store_false", default=True,
|
|
help="Do not configure the client to use SSSD for automount")
|
|
parser.add_option("--debug", dest="debug", action="store_true",
|
|
default=False, help="enable debugging")
|
|
parser.add_option("-U", "--unattended", dest="unattended",
|
|
action="store_true", default=False,
|
|
help="unattended installation never prompts the user")
|
|
parser.add_option("--uninstall", dest="uninstall", action="store_true",
|
|
default=False, help="Unconfigure automount")
|
|
|
|
options, args = parser.parse_args()
|
|
return options, args
|
|
|
|
def wait_for_sssd():
|
|
"""
|
|
It takes a bit for sssd to get going, lets loop until it is
|
|
serving data.
|
|
|
|
This function returns nothing.
|
|
"""
|
|
n = 0
|
|
found = False
|
|
time.sleep(1)
|
|
while n < 10 and not found:
|
|
try:
|
|
ipautil.run(["getent", "passwd", "admin@%s" % api.env.realm])
|
|
found = True
|
|
except Exception:
|
|
time.sleep(1)
|
|
n = n + 1
|
|
|
|
# This should never happen but if it does, may as well warn the user
|
|
if not found:
|
|
err_msg = ("Unable to find 'admin' user with "
|
|
"'getent passwd admin@%s'!" % api.env.realm)
|
|
root_logger.debug(err_msg)
|
|
print(err_msg)
|
|
print("This may mean that sssd didn't re-start properly after the configuration changes.")
|
|
|
|
def configure_xml(fstore):
|
|
authconf = paths.AUTOFS_LDAP_AUTH_CONF
|
|
fstore.backup_file(authconf)
|
|
|
|
try:
|
|
tree = etree.parse(authconf)
|
|
except IOError as e:
|
|
root_logger.debug('Unable to open file %s' % e)
|
|
root_logger.debug('Creating new from template')
|
|
tree = etree.ElementTree(
|
|
element=etree.Element('autofs_ldap_sasl_conf')
|
|
)
|
|
|
|
element = tree.getroot()
|
|
if element.tag != 'autofs_ldap_sasl_conf':
|
|
raise RuntimeError('Invalid XML root in file %s' % authconf)
|
|
|
|
element.set('usetls', 'no')
|
|
element.set('tlsrequired', 'no')
|
|
element.set('authrequired', 'yes')
|
|
element.set('authtype', 'GSSAPI')
|
|
element.set('clientprinc', 'host/%s@%s' % (api.env.host, api.env.realm))
|
|
|
|
try:
|
|
tree.write(authconf, xml_declaration=True, encoding='UTF-8')
|
|
except IOError as e:
|
|
print("Unable to write %s: %s" % (authconf, e))
|
|
else:
|
|
print("Configured %s" % authconf)
|
|
|
|
def configure_nsswitch(fstore, options):
|
|
"""
|
|
Point automount to ldap in nsswitch.conf. This function is for non-SSSD
|
|
setups only
|
|
"""
|
|
fstore.backup_file(paths.NSSWITCH_CONF)
|
|
|
|
conf = ipachangeconf.IPAChangeConf("IPA Installer")
|
|
conf.setOptionAssignment(':')
|
|
|
|
nss_value = ' files ldap'
|
|
|
|
opts = [{'name':'automount', 'type':'option', 'action':'set', 'value':nss_value},
|
|
{'name':'empty', 'type':'empty'}]
|
|
|
|
conf.changeConf(paths.NSSWITCH_CONF, opts)
|
|
|
|
print("Configured %s" % paths.NSSWITCH_CONF)
|
|
|
|
def configure_autofs_sssd(fstore, statestore, autodiscover, options):
|
|
try:
|
|
sssdconfig = SSSDConfig.SSSDConfig()
|
|
sssdconfig.import_config()
|
|
domains = sssdconfig.list_active_domains()
|
|
except Exception as e:
|
|
sys.exit(e)
|
|
|
|
try:
|
|
sssdconfig.new_service('autofs')
|
|
except SSSDConfig.ServiceAlreadyExists:
|
|
pass
|
|
except SSSDConfig.ServiceNotRecognizedError:
|
|
root_logger.error("Unable to activate the Autofs service in SSSD config.")
|
|
root_logger.info(
|
|
"Please make sure you have SSSD built with autofs support installed.")
|
|
root_logger.info(
|
|
"Configure autofs support manually in /etc/sssd/sssd.conf.")
|
|
sys.exit("Cannot create the autofs service in sssd.conf")
|
|
|
|
sssdconfig.activate_service('autofs')
|
|
|
|
domain = None
|
|
for name in domains:
|
|
domain = sssdconfig.get_domain(name)
|
|
try:
|
|
provider = domain.get_option('id_provider')
|
|
except SSSDConfig.NoOptionError:
|
|
continue
|
|
if provider == "ipa":
|
|
domain.add_provider('ipa', 'autofs')
|
|
try:
|
|
domain.get_option('ipa_automount_location')
|
|
sys.exit('An automount location is already configured')
|
|
except SSSDConfig.NoOptionError:
|
|
domain.set_option('ipa_automount_location', options.location)
|
|
break
|
|
|
|
if domain is None:
|
|
sys.exit('SSSD is not configured.')
|
|
|
|
sssdconfig.save_domain(domain)
|
|
sssdconfig.write(paths.SSSD_CONF)
|
|
statestore.backup_state('autofs', 'sssd', True)
|
|
|
|
sssd = services.service('sssd')
|
|
sssd.restart()
|
|
print("Restarting sssd, waiting for it to become available.")
|
|
wait_for_sssd()
|
|
|
|
def configure_autofs(fstore, statestore, autodiscover, server, options):
|
|
"""
|
|
fstore: the FileStore to back up files in
|
|
options.server: the IPA server to use
|
|
options.location: the Automount location to use
|
|
"""
|
|
if not autodiscover:
|
|
ldap_uri = "ldap://%s" % server
|
|
else:
|
|
ldap_uri = "ldap:///%s" % api.env.basedn
|
|
|
|
search_base = str(DN(('cn', options.location), api.env.container_automount, api.env.basedn))
|
|
replacevars = {
|
|
'MAP_OBJECT_CLASS': 'automountMap',
|
|
'ENTRY_OBJECT_CLASS': 'automount',
|
|
'MAP_ATTRIBUTE': 'automountMapName',
|
|
'ENTRY_ATTRIBUTE': 'automountKey',
|
|
'VALUE_ATTRIBUTE': 'automountInformation',
|
|
'SEARCH_BASE': search_base,
|
|
'LDAP_URI': ldap_uri,
|
|
}
|
|
|
|
ipautil.backup_config_and_replace_variables(fstore,
|
|
paths.SYSCONFIG_AUTOFS, replacevars=replacevars)
|
|
tasks.restore_context(paths.SYSCONFIG_AUTOFS)
|
|
statestore.backup_state('autofs', 'sssd', False)
|
|
|
|
print("Configured %s" % paths.SYSCONFIG_AUTOFS)
|
|
|
|
def configure_autofs_common(fstore, statestore, options):
|
|
autofs = services.knownservices.autofs
|
|
statestore.backup_state('autofs', 'enabled', autofs.is_enabled())
|
|
statestore.backup_state('autofs', 'running', autofs.is_running())
|
|
try:
|
|
autofs.restart()
|
|
print("Started %s" % autofs.service_name)
|
|
except Exception as e:
|
|
root_logger.error("%s failed to restart: %s", autofs.service_name, e)
|
|
try:
|
|
autofs.enable()
|
|
except Exception as e:
|
|
print("Failed to configure automatic startup of the %s daemon" % (autofs.service_name))
|
|
root_logger.error("Failed to enable automatic startup of the %s daemon: %s" % (autofs.service_name, str(e)))
|
|
|
|
def uninstall(fstore, statestore):
|
|
print("Restoring configuration")
|
|
if fstore.has_file(paths.SYSCONFIG_AUTOFS):
|
|
fstore.restore_file(paths.SYSCONFIG_AUTOFS)
|
|
if fstore.has_file(paths.NSSWITCH_CONF):
|
|
fstore.restore_file(paths.NSSWITCH_CONF)
|
|
if fstore.has_file(paths.AUTOFS_LDAP_AUTH_CONF):
|
|
fstore.restore_file(paths.AUTOFS_LDAP_AUTH_CONF)
|
|
if fstore.has_file(paths.SYSCONFIG_NFS):
|
|
fstore.restore_file(paths.SYSCONFIG_NFS)
|
|
if fstore.has_file(paths.IDMAPD_CONF):
|
|
fstore.restore_file(paths.IDMAPD_CONF)
|
|
if statestore.has_state('autofs'):
|
|
enabled = statestore.restore_state('autofs', 'enabled')
|
|
running = statestore.restore_state('autofs', 'running')
|
|
sssd = statestore.restore_state('autofs', 'sssd')
|
|
autofs = services.knownservices.autofs
|
|
if not enabled:
|
|
autofs.disable()
|
|
if not running:
|
|
autofs.stop()
|
|
if sssd:
|
|
try:
|
|
sssdconfig = SSSDConfig.SSSDConfig()
|
|
sssdconfig.import_config()
|
|
sssdconfig.deactivate_service('autofs')
|
|
domains = sssdconfig.list_active_domains()
|
|
for name in domains:
|
|
domain = sssdconfig.get_domain(name)
|
|
try:
|
|
provider = domain.get_option('id_provider')
|
|
except SSSDConfig.NoOptionError:
|
|
continue
|
|
if provider == "ipa":
|
|
domain.remove_option('ipa_automount_location')
|
|
domain.remove_provider('autofs')
|
|
break
|
|
sssdconfig.save_domain(domain)
|
|
sssdconfig.write(paths.SSSD_CONF)
|
|
sssd = services.service('sssd')
|
|
sssd.restart()
|
|
wait_for_sssd()
|
|
except Exception as e:
|
|
print('Unable to restore SSSD configuration: %s' % str(e))
|
|
root_logger.debug('Unable to restore SSSD configuration: %s' % str(e))
|
|
if statestore.has_state('rpcidmapd'):
|
|
enabled = statestore.restore_state('rpcidmapd', 'enabled')
|
|
running = statestore.restore_state('rpcidmapd', 'running')
|
|
rpcidmapd = services.knownservices.rpcidmapd
|
|
if not enabled:
|
|
rpcidmapd.disable()
|
|
if not running:
|
|
rpcidmapd.stop()
|
|
if statestore.has_state('rpcgssd'):
|
|
enabled = statestore.restore_state('rpcgssd', 'enabled')
|
|
running = statestore.restore_state('rpcgssd', 'running')
|
|
rpcgssd = services.knownservices.rpcgssd
|
|
if not enabled:
|
|
rpcgssd.disable()
|
|
if not running:
|
|
rpcgssd.stop()
|
|
|
|
return 0
|
|
|
|
def configure_nfs(fstore, statestore):
|
|
"""
|
|
Configure secure NFS
|
|
"""
|
|
replacevars = {
|
|
constants.SECURE_NFS_VAR: 'yes',
|
|
}
|
|
ipautil.backup_config_and_replace_variables(fstore,
|
|
paths.SYSCONFIG_NFS, replacevars=replacevars)
|
|
tasks.restore_context(paths.SYSCONFIG_NFS)
|
|
|
|
print("Configured %s" % paths.SYSCONFIG_NFS)
|
|
|
|
# Prepare the changes
|
|
# We need to use IPAChangeConf as simple regexp substitution
|
|
# does not cut it here
|
|
conf = ipachangeconf.IPAChangeConf("IPA automount installer")
|
|
conf.case_insensitive_sections = False
|
|
conf.setOptionAssignment(" = ")
|
|
conf.setSectionNameDelimiters(("[", "]"))
|
|
|
|
changes = [conf.setOption('Domain', api.env.domain)]
|
|
section_with_changes = [conf.setSection('General', changes)]
|
|
|
|
# Backup the file and apply the changes
|
|
fstore.backup_file(paths.IDMAPD_CONF)
|
|
conf.changeConf(paths.IDMAPD_CONF, section_with_changes)
|
|
|
|
tasks.restore_context(paths.IDMAPD_CONF)
|
|
|
|
print("Configured %s" % paths.IDMAPD_CONF)
|
|
|
|
rpcidmapd = services.knownservices.rpcidmapd
|
|
statestore.backup_state('rpcidmapd', 'enabled', rpcidmapd.is_enabled())
|
|
statestore.backup_state('rpcidmapd', 'running', rpcidmapd.is_running())
|
|
try:
|
|
rpcidmapd.restart()
|
|
print("Started %s" % rpcidmapd.service_name)
|
|
except Exception as e:
|
|
root_logger.error("%s failed to restart: %s", rpcidmapd.service_name, e)
|
|
try:
|
|
rpcidmapd.enable()
|
|
except Exception as e:
|
|
print("Failed to configure automatic startup of the %s daemon" % (rpcidmapd.service_name))
|
|
root_logger.error("Failed to enable automatic startup of the %s daemon: %s" % (rpcidmapd.service_name, str(e)))
|
|
|
|
rpcgssd = services.knownservices.rpcgssd
|
|
statestore.backup_state('rpcgssd', 'enabled', rpcgssd.is_enabled())
|
|
statestore.backup_state('rpcgssd', 'running', rpcgssd.is_running())
|
|
try:
|
|
rpcgssd.restart()
|
|
print("Started %s" % rpcgssd.service_name)
|
|
except Exception as e:
|
|
root_logger.error("%s failed to restart: %s", rpcgssd.service_name, e)
|
|
try:
|
|
rpcgssd.enable()
|
|
except Exception as e:
|
|
print("Failed to configure automatic startup of the %s daemon" % (rpcgssd.service_name))
|
|
root_logger.error("Failed to enable automatic startup of the %s daemon: %s" % (rpcgssd.service_name, str(e)))
|
|
|
|
def main():
|
|
|
|
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
|
|
statestore = sysrestore.StateFile(paths.IPA_CLIENT_SYSRESTORE)
|
|
if not fstore.has_files() and not os.path.exists(paths.IPA_DEFAULT_CONF):
|
|
sys.exit('IPA client is not configured on this system.\n')
|
|
|
|
options, _args = parse_options()
|
|
|
|
standard_logging_setup(
|
|
paths.IPACLIENT_INSTALL_LOG, verbose=False, debug=options.debug,
|
|
filemode='a', console_format='%(message)s')
|
|
|
|
if options.uninstall:
|
|
return uninstall(fstore, statestore)
|
|
|
|
cfg = dict(
|
|
context='cli_installer',
|
|
in_server=False,
|
|
debug=options.debug,
|
|
verbose=0,
|
|
)
|
|
|
|
api.bootstrap(**cfg)
|
|
api.finalize()
|
|
|
|
ca_cert_path = None
|
|
if os.path.exists(paths.IPA_CA_CRT):
|
|
ca_cert_path = paths.IPA_CA_CRT
|
|
|
|
if statestore.has_state('autofs'):
|
|
sys.exit('automount is already configured on this system.\n')
|
|
|
|
autodiscover = False
|
|
ds = ipadiscovery.IPADiscovery()
|
|
if not options.server:
|
|
print("Searching for IPA server...")
|
|
ret = ds.search(ca_cert_path=ca_cert_path)
|
|
root_logger.debug('Executing DNS discovery')
|
|
if ret == ipadiscovery.NO_LDAP_SERVER:
|
|
root_logger.debug('Autodiscovery did not find LDAP server')
|
|
s = urlsplit(api.env.xmlrpc_uri)
|
|
server = [s.netloc]
|
|
root_logger.debug('Setting server to %s' % s.netloc)
|
|
else:
|
|
autodiscover = True
|
|
if not ds.servers:
|
|
sys.exit('Autodiscovery was successful but didn\'t return a server')
|
|
root_logger.debug('Autodiscovery success, possible servers %s' % ','.join(ds.servers))
|
|
server = ds.servers[0]
|
|
else:
|
|
server = options.server
|
|
root_logger.debug("Verifying that %s is an IPA server" % server)
|
|
ldapret = ds.ipacheckldap(server, api.env.realm, ca_cert_path)
|
|
if ldapret[0] == ipadiscovery.NO_ACCESS_TO_LDAP:
|
|
print("Anonymous access to the LDAP server is disabled.")
|
|
print("Proceeding without strict verification.")
|
|
print("Note: This is not an error if anonymous access has been explicitly restricted.")
|
|
elif ldapret[0] == ipadiscovery.NO_TLS_LDAP:
|
|
root_logger.warning("Unencrypted access to LDAP is not supported.")
|
|
elif ldapret[0] != 0:
|
|
sys.exit('Unable to confirm that %s is an IPA server' % server)
|
|
|
|
if not autodiscover:
|
|
print("IPA server: %s" % server)
|
|
root_logger.debug('Using fixed server %s' % server)
|
|
else:
|
|
print("IPA server: DNS discovery")
|
|
root_logger.debug('Configuring to use DNS discovery')
|
|
|
|
print("Location: %s" % options.location)
|
|
root_logger.debug('Using automount location %s' % options.location)
|
|
|
|
ccache_dir = tempfile.mkdtemp()
|
|
ccache_name = os.path.join(ccache_dir, 'ccache')
|
|
try:
|
|
try:
|
|
host_princ = str('host/%s@%s' % (api.env.host, api.env.realm))
|
|
kinit_keytab(host_princ, paths.KRB5_KEYTAB, ccache_name)
|
|
os.environ['KRB5CCNAME'] = ccache_name
|
|
except gssapi.exceptions.GSSError as e:
|
|
sys.exit("Failed to obtain host TGT: %s" % e)
|
|
# Now we have a TGT, connect to IPA
|
|
try:
|
|
api.Backend.rpcclient.connect()
|
|
except errors.KerberosError as e:
|
|
sys.exit('Cannot connect to the server due to ' + str(e))
|
|
try:
|
|
# Use the RPC directly so older servers are supported
|
|
api.Backend.rpcclient.forward(
|
|
'automountlocation_show',
|
|
ipautil.fsdecode(options.location),
|
|
version=u'2.0',
|
|
)
|
|
except errors.VersionError as e:
|
|
sys.exit('This client is incompatible: ' + str(e))
|
|
except errors.NotFound:
|
|
sys.exit("Automount location '%s' does not exist" % options.location)
|
|
except errors.PublicError as e:
|
|
sys.exit("Cannot connect to the server due to generic error: %s" % str(e))
|
|
finally:
|
|
os.remove(ccache_name)
|
|
os.rmdir(ccache_dir)
|
|
|
|
if not options.unattended and not ipautil.user_input("Continue to configure the system with these values?", False):
|
|
sys.exit("Installation aborted")
|
|
|
|
try:
|
|
if not options.sssd:
|
|
configure_nsswitch(fstore, options)
|
|
configure_nfs(fstore, statestore)
|
|
if options.sssd:
|
|
configure_autofs_sssd(fstore, statestore, autodiscover, options)
|
|
else:
|
|
configure_xml(fstore)
|
|
configure_autofs(fstore, statestore, autodiscover, server, options)
|
|
configure_autofs_common(fstore, statestore, options)
|
|
except Exception as e:
|
|
root_logger.debug('Raised exception %s' % e)
|
|
print("Installation failed. Rolling back changes.")
|
|
uninstall(fstore, statestore)
|
|
return 1
|
|
|
|
return 0
|
|
|
|
try:
|
|
if not os.geteuid()==0:
|
|
sys.exit("\nMust be run as root\n")
|
|
|
|
sys.exit(main())
|
|
except SystemExit as e:
|
|
sys.exit(e)
|
|
except RuntimeError as e:
|
|
sys.exit(e)
|
|
except (KeyboardInterrupt, EOFError):
|
|
sys.exit(1)
|