File: //proc/self/root/lib/python3.9/site-packages/ipaclient/install/client.py
#
# Copyright (C) 2016 FreeIPA Contributors see COPYING for license
#
"""
IPA client install module
Provides methods for installation, uninstallation of IPA client
"""
from __future__ import (
print_function,
absolute_import,
)
import logging
import dns
import getpass
import gssapi
import netifaces
import os
import re
import SSSDConfig
import shutil
import socket
import sys
import tempfile
import textwrap
import time
import traceback
import warnings
from configparser import RawConfigParser
from urllib.parse import urlparse, urlunparse
from ipalib import api, errors, x509
from ipalib import sysrestore
from ipalib.constants import FQDN, IPAAPI_USER, MAXHOSTNAMELEN
from ipalib.install import certmonger, certstore, service
from ipalib.install import hostname as hostname_
from ipalib.facts import is_ipa_client_configured, is_ipa_configured
from ipalib.kinit import kinit_keytab, kinit_password, kinit_pkinit
from ipalib.install.service import enroll_only, prepare_only
from ipalib.rpc import delete_persistent_client_session_data
from ipalib.util import (
normalize_hostname,
no_matching_interface_for_ip_address_warning,
validate_hostname,
verify_host_resolvable,
)
from ipaplatform import services
from ipaplatform.constants import constants
from ipaplatform.paths import paths
from ipaplatform.tasks import tasks
from ipapython import certdb, kernel_keyring, ipaldap, ipautil, dnsutil
from ipapython.admintool import ScriptError
from ipapython.dn import DN
from ipapython.install import typing
from ipapython.install.core import group, knob, extend_knob
from ipapython.install.common import step
from ipapython.ipautil import (
CalledProcessError,
realm_to_suffix,
run,
user_input,
)
from ipapython.ssh import SSHPublicKey
from ipapython import version
from ipapython.errors import SetseboolError
from . import automount, timeconf, sssd
from ipaclient import discovery
from ipapython.ipachangeconf import IPAChangeConf
NoneType = type(None)
logger = logging.getLogger(__name__)
SUCCESS = 0
CLIENT_INSTALL_ERROR = 1
CLIENT_NOT_CONFIGURED = 2
CLIENT_ALREADY_CONFIGURED = 3
CLIENT_UNINSTALL_ERROR = 4 # error after restoring files/state
SECURE_PATH = (
"/bin:/sbin:/usr/kerberos/bin:/usr/kerberos/sbin:/usr/bin:/usr/sbin"
)
# global variables
hostname = None
hostname_source = None
nosssd_files = None
dnsok = False
cli_domain = None
cli_server = None
subject_base = None
cli_realm = None
cli_kdc = None
client_domain = None
cli_basedn = None
selinux_works = None
# end of global variables
def cleanup(func):
def inner(options, tdict):
# Add some additional options which contain the temporary files
# needed during installation.
fd, krb_name = tempfile.mkstemp()
os.close(fd)
ccache_dir = tempfile.mkdtemp(prefix='krbcc')
tdict['krb_name'] = krb_name
tdict['ccache_dir'] = ccache_dir
func(options, tdict)
os.environ.pop('KRB5_CONFIG', None)
try:
os.remove(krb_name)
except OSError:
logger.error("Could not remove %s", krb_name)
try:
os.rmdir(ccache_dir)
except OSError:
pass
# During master installation, the .ipabkp file is not created
# Ignore the delete error if it is "file does not exist"
remove_file(krb_name + ".ipabkp")
return inner
def remove_file(filename):
"""
Deletes a file. If the file does not exist (OSError 2) does nothing.
Otherwise logs an error message and instructs the user to remove the
offending file manually
:param filename: name of the file to be removed
"""
try:
os.remove(filename)
except OSError as e:
if e.errno == 2:
return
logger.error("Failed to remove file %s: %s", filename, e)
logger.error('Please remove %s manually, as it can cause '
'subsequent installation to fail.', filename)
def log_service_error(name, action, error):
logger.error("%s failed to %s: %s", name, action, str(error))
def get_cert_path(cert_path):
"""
If a CA certificate is passed in on the command line, use that.
Else if a CA file exists in paths.IPA_CA_CRT then use that.
Otherwise return None.
"""
if cert_path is not None:
return cert_path
if os.path.exists(paths.IPA_CA_CRT) and \
os.stat(paths.IPA_CA_CRT).st_size != 0:
return paths.IPA_CA_CRT
return None
def save_state(service, statestore):
enabled = service.is_enabled()
running = service.is_running()
if enabled or running:
statestore.backup_state(service.service_name, 'enabled', enabled)
statestore.backup_state(service.service_name, 'running', running)
def restore_state(service, statestore):
enabled = statestore.restore_state(service.service_name, 'enabled')
running = statestore.restore_state(service.service_name, 'running')
if enabled:
try:
service.enable()
except Exception:
logger.warning(
"Failed to configure automatic startup of the %s daemon",
service.service_name
)
if running:
try:
service.start()
except Exception:
logger.warning(
"Failed to restart the %s daemon",
service.service_name
)
def nssldap_exists():
"""Checks whether nss_ldap or nss-pam-ldapd is installed.
If anyone of mandatory files was found returns True and list of all files
found.
"""
files_to_check = [
{
'function': 'configure_ldap_conf',
'mandatory': [
paths.LDAP_CONF,
paths.NSS_LDAP_CONF,
paths.LIBNSS_LDAP_CONF],
'optional':[paths.PAM_LDAP_CONF]
},
{
'function': 'configure_nslcd_conf',
'mandatory': [paths.NSLCD_CONF]
}
]
files_found = {}
retval = False
for function in files_to_check:
files_found[function['function']] = []
for file_type in ['mandatory', 'optional']:
try:
for filename in function[file_type]:
if os.path.isfile(filename):
files_found[function['function']].append(filename)
if file_type == 'mandatory':
retval = True
except KeyError:
pass
return (retval, files_found)
def check_ldap_conf(conf=paths.OPENLDAP_LDAP_CONF,
error_rval=CLIENT_INSTALL_ERROR):
if not os.path.isfile(conf):
return False
pat = re.compile(r"^\s*(PORT|HOST).*")
unsupported = set()
with open(conf) as f:
for line in f:
mo = pat.match(line)
if mo is not None:
unsupported.add(mo.group(1))
if unsupported:
raise ScriptError(
"'{}' contains deprecated and unsupported entries: {}".format(
conf, ", ".join(sorted(unsupported))
),
rval=error_rval
)
else:
return True
def delete_ipa_domain():
"""Helper function for uninstall.
Deletes IPA domain from sssd.conf
"""
try:
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.import_config()
domains = sssdconfig.list_active_domains()
ipa_domain_name = None
for name in domains:
domain = sssdconfig.get_domain(name)
try:
provider = domain.get_option('id_provider')
if provider == "ipa":
ipa_domain_name = name
break
except SSSDConfig.NoOptionError:
continue
if ipa_domain_name is not None:
sssdconfig.delete_domain(ipa_domain_name)
sssdconfig.write()
else:
logger.warning(
"IPA domain could not be found in "
"/etc/sssd/sssd.conf and therefore not deleted")
except IOError:
logger.warning(
"IPA domain could not be deleted. "
"No access to the /etc/sssd/sssd.conf file.")
def is_ipa_client_installed(on_master=False):
"""
Consider IPA client not installed if nothing is backed up
and default.conf file does not exist. If on_master is set to True,
the existence of default.conf file is not taken into consideration,
since it has been already created by ipa-server-install.
"""
warnings.warn(
"Use 'ipalib.facts.is_ipa_client_configured'",
DeprecationWarning,
stacklevel=2
)
return is_ipa_client_configured(on_master)
def configure_nsswitch_database(fstore, database, services, preserve=True,
append=True, default_value=()):
"""
This function was deprecated. Use ipaplatform.tasks.
Edits the specified nsswitch.conf database (e.g. passwd, group, sudoers)
to use the specified service(s).
Arguments:
fstore - FileStore to backup the nsswitch.conf
database - database configuration that should be ammended,
e.g. 'sudoers'
service - list of services that should be added, e.g. ['sss']
preserve - if True, the already configured services will be preserved
The next arguments modify the behaviour if preserve=True:
append - if True, the services will be appended, if False, prepended
default_value - list of services that are considered as default (if
the database is not mentioned in nsswitch.conf), e.g.
['files']
"""
warnings.warn(
"Use ipaplatform.tasks.tasks.configure_nsswitch_database",
DeprecationWarning,
stacklevel=2
)
return tasks.configure_nsswitch_database(fstore, database, services,
preserve, append, default_value)
def configure_ipa_conf(
fstore, cli_basedn, cli_realm, cli_domain, cli_server, hostname):
ipaconf = IPAChangeConf("IPA Installer")
ipaconf.setOptionAssignment(" = ")
ipaconf.setSectionNameDelimiters(("[", "]"))
opts = [
{
'name': 'comment',
'type': 'comment',
'value': 'File modified by ipa-client-install'
},
ipaconf.emptyLine(),
]
# [global]
defopts = [
ipaconf.setOption('basedn', cli_basedn),
ipaconf.setOption('realm', cli_realm),
ipaconf.setOption('domain', cli_domain),
ipaconf.setOption('server', cli_server[0]),
ipaconf.setOption('host', hostname),
ipaconf.setOption('xmlrpc_uri',
'https://{}/ipa/xml'.format(
ipautil.format_netloc(cli_server[0]))),
ipaconf.setOption('enable_ra', 'True')
]
opts.extend([
ipaconf.setSection('global', defopts),
ipaconf.emptyLine(),
])
target_fname = paths.IPA_DEFAULT_CONF
fstore.backup_file(target_fname)
ipaconf.newConf(target_fname, opts)
# umask applies when creating a new file but we want 0o644 here
os.chmod(target_fname, 0o644)
def disable_ra():
"""Set the enable_ra option in /etc/ipa/default.conf to False
Note that api.env will retain the old value (it is readonly).
"""
parser = RawConfigParser()
parser.read(paths.IPA_DEFAULT_CONF)
parser.set('global', 'enable_ra', 'False')
fp = open(paths.IPA_DEFAULT_CONF, 'w')
parser.write(fp)
fp.close()
def configure_ldap_conf(
fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options,
files):
ldapconf = IPAChangeConf("IPA Installer")
ldapconf.setOptionAssignment(" ")
opts = [
{
'name': 'comment',
'type': 'comment',
'value': 'File modified by ipa-client-install'
},
ldapconf.emptyLine(),
ldapconf.setOption('ldap_version', '3'),
ldapconf.setOption('base', cli_basedn),
ldapconf.emptyLine(),
ldapconf.setOption(
'nss_base_passwd', '{dn}{suffix}'
.format(dn=DN(('cn', 'users'), ('cn', 'accounts'), cli_basedn),
suffix='?sub')),
ldapconf.setOption(
'nss_base_group', '{dn}{suffix}'
.format(dn=DN(('cn', 'groups'), ('cn', 'accounts'), cli_basedn),
suffix='?sub')),
ldapconf.setOption('nss_schema', 'rfc2307bis'),
ldapconf.setOption('nss_map_attribute', 'uniqueMember member'),
ldapconf.setOption('nss_initgroups_ignoreusers', 'root,dirsrv'),
ldapconf.emptyLine(),
ldapconf.setOption('nss_reconnect_maxsleeptime', '8'),
ldapconf.setOption('nss_reconnect_sleeptime', '1'),
ldapconf.setOption('bind_timelimit', '5'),
ldapconf.setOption('timelimit', '15'),
ldapconf.emptyLine(),
]
if not dnsok or options.force or options.on_master:
if options.on_master:
opts.append(ldapconf.setOption('uri', 'ldap://localhost'))
else:
opts.append(ldapconf.setOption('uri', 'ldap://{}'.format(
ipautil.format_netloc(cli_server[0]))))
else:
opts.append(ldapconf.setOption('nss_srv_domain', cli_domain))
opts.append(ldapconf.emptyLine())
# Depending on the release and distribution this may exist in any
# number of different file names, update what we find
for filename in files:
try:
fstore.backup_file(filename)
ldapconf.newConf(filename, opts)
except Exception as e:
logger.error("Creation of %s failed: %s", filename, str(e))
return (1, 'LDAP', filename)
if files:
return (0, 'LDAP', ', '.join(files))
return 0, None, None
def configure_nslcd_conf(
fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options,
files):
nslcdconf = IPAChangeConf("IPA Installer")
nslcdconf.setOptionAssignment(" ")
opts = [
{
'name': 'comment',
'type': 'comment',
'value': 'File modified by ipa-client-install'
},
nslcdconf.emptyLine(),
nslcdconf.setOption('ldap_version', '3'),
nslcdconf.setOption('base', cli_basedn),
nslcdconf.emptyLine(),
nslcdconf.setOption('base passwd', str(
DN(('cn', 'users'), ('cn', 'accounts'), cli_basedn))),
nslcdconf.setOption('base group', str(
DN(('cn', 'groups'), ('cn', 'accounts'), cli_basedn))),
nslcdconf.setOption('timelimit', '15'),
nslcdconf.emptyLine(),
]
if not dnsok or options.force or options.on_master:
if options.on_master:
opts.append(nslcdconf.setOption('uri', 'ldap://localhost'))
else:
opts.append(nslcdconf.setOption('uri', 'ldap://{}'.format(
ipautil.format_netloc(cli_server[0]))))
else:
opts.append(nslcdconf.setOption('uri', 'DNS'))
opts.append(nslcdconf.emptyLine())
for filename in files:
try:
fstore.backup_file(filename)
nslcdconf.newConf(filename, opts)
except Exception as e:
logger.error("Creation of %s failed: %s", filename, str(e))
return (1, None, None)
nslcd = services.knownservices.nslcd
if nslcd.is_installed():
try:
nslcd.restart()
except Exception as e:
log_service_error(nslcd.service_name, 'restart', e)
try:
nslcd.enable()
except Exception as e:
logger.error(
"Failed to enable automatic startup of the %s daemon: %s",
nslcd.service_name, str(e))
else:
logger.debug(
"%s daemon is not installed, skip configuration",
nslcd.service_name)
return (0, None, None)
return (0, 'NSLCD', ', '.join(files))
def configure_openldap_conf(fstore, cli_basedn, cli_server):
ldapconf = IPAChangeConf("IPA Installer")
ldapconf.setOptionAssignment((" ", "\t"))
opts = [
{
'name': 'comment',
'type': 'comment',
'value': ' File modified by ipa-client-install'
},
ldapconf.emptyLine(),
{
'name': 'comment',
'type': 'comment',
'value': ' We do not want to break your existing configuration, '
'hence:'
},
# this needs to be kept updated if we change more options
{
'name': 'comment',
'type': 'comment',
'value': ' URI, BASE, and SASL_MECH'
},
{
'name': 'comment',
'type': 'comment',
'value': ' have been added if they were not set.'
},
{
'name': 'comment',
'type': 'comment',
'value': ' In case any of them were set, a comment has been '
'inserted and'
},
{
'name': 'comment',
'type': 'comment',
'value': ' "# CONF_NAME modified by IPA" added to the line '
'above.'
},
{
'name': 'comment',
'type': 'comment',
'value': ' To use IPA server with openLDAP tools, please comment '
'out your'
},
{
'name': 'comment',
'type': 'comment',
'value': ' existing configuration for these options and '
'uncomment the'
},
{
'name': 'comment',
'type': 'comment',
'value': ' corresponding lines generated by IPA.'
},
ldapconf.emptyLine(),
ldapconf.emptyLine(),
{
'action': 'addifnotset',
'name': 'URI',
'type': 'option',
'value': 'ldaps://{}'.format(cli_server[0])
},
{
'action': 'addifnotset',
'name': 'BASE',
'type': 'option',
'value': str(cli_basedn)
},
{
'action': 'addifnotset',
'name': 'SASL_MECH',
'type': 'option',
'value': 'GSSAPI'
},
]
target_fname = paths.OPENLDAP_LDAP_CONF
fstore.backup_file(target_fname)
error_msg = "Configuring {path} failed with: {err}"
try:
ldapconf.changeConf(target_fname, opts)
except SyntaxError as e:
logger.info("Could not parse %s", target_fname)
logger.debug('%s', error_msg.format(path=target_fname, err=str(e)))
return False
except IOError as e:
logger.info("%s does not exist.", target_fname)
logger.debug('%s', error_msg.format(path=target_fname, err=str(e)))
return False
except Exception as e: # we do not want to fail in an optional step
logger.debug('%s', error_msg.format(path=target_fname, err=str(e)))
return False
os.chmod(target_fname, 0o644)
return True
def hardcode_ldap_server(cli_server):
"""
DNS Discovery didn't return a valid IPA server, hardcode a value into
the file instead.
"""
if not os.path.isfile(paths.LDAP_CONF):
return
ldapconf = IPAChangeConf("IPA Installer")
ldapconf.setOptionAssignment(" ")
opts = [
ldapconf.setOption('uri', 'ldap://{}'.format(
ipautil.format_netloc(cli_server[0]))),
ldapconf.emptyLine(),
]
# Errors raised by this should be caught by the caller
ldapconf.changeConf(paths.LDAP_CONF, opts)
logger.info(
"Changed configuration of /etc/ldap.conf to use "
"hardcoded server name: %s", cli_server[0])
# Currently this doesn't support templating, but that could be changed in the
# future. Note that this function is also called from %post.
def configure_krb5_snippet():
template = os.path.join(
paths.USR_SHARE_IPA_CLIENT_DIR,
os.path.basename(paths.KRB5_FREEIPA) + ".template"
)
shutil.copy(template, paths.KRB5_FREEIPA)
os.chmod(paths.KRB5_FREEIPA, 0o644)
tasks.restore_context(paths.KRB5_FREEIPA)
def configure_krb5_conf(
cli_realm, cli_domain, cli_server, cli_kdc, dnsok,
filename, client_domain, client_hostname, force=False,
configure_sssd=True):
# First, write a snippet to krb5.conf.d.
configure_krb5_snippet()
# Then, perform the rest of our configuration into krb5.conf itself.
krbconf = IPAChangeConf("IPA Installer")
krbconf.setOptionAssignment((" = ", " "))
krbconf.setSectionNameDelimiters(("[", "]"))
krbconf.setSubSectionDelimiters(("{", "}"))
krbconf.setIndent(("", " ", " "))
opts = [
{
'name': 'comment',
'type': 'comment',
'value': 'File modified by ipa-client-install'
},
krbconf.emptyLine(),
]
if os.path.exists(paths.COMMON_KRB5_CONF_DIR):
opts.extend([
{
'name': 'includedir',
'type': 'option',
'value': paths.COMMON_KRB5_CONF_DIR,
'delim': ' '
}
])
# [libdefaults]
libopts = [
krbconf.setOption('default_realm', cli_realm)
]
if not dnsok or not cli_kdc or force:
libopts.extend([
krbconf.setOption('dns_lookup_realm', 'false'),
])
else:
libopts.extend([
krbconf.setOption('dns_lookup_realm', 'true'),
])
libopts.extend([
krbconf.setOption('rdns', 'false'),
krbconf.setOption('dns_canonicalize_hostname', 'false'),
krbconf.setOption('dns_lookup_kdc', 'true'),
krbconf.setOption('ticket_lifetime', '24h'),
krbconf.setOption('forwardable', 'true'),
krbconf.setOption('udp_preference_limit', '0')
])
# Configure KEYRING CCACHE if supported
if kernel_keyring.is_persistent_keyring_supported():
logger.debug("Enabling persistent keyring CCACHE")
libopts.append(krbconf.setOption('default_ccache_name',
'KEYRING:persistent:%{uid}'))
opts.extend([
krbconf.setSection('libdefaults', libopts),
krbconf.emptyLine()
])
# the following are necessary only if DNS discovery does not work
kropts = []
if not dnsok or not cli_kdc or force:
# [realms]
for server in cli_server:
kropts.extend([
krbconf.setOption('kdc', ipautil.format_netloc(server, 88)),
krbconf.setOption('master_kdc',
ipautil.format_netloc(server, 88)),
krbconf.setOption('admin_server',
ipautil.format_netloc(server, 749)),
krbconf.setOption('kpasswd_server',
ipautil.format_netloc(server, 464))
])
kropts.append(krbconf.setOption('default_domain', cli_domain))
kropts.append(
krbconf.setOption('pkinit_anchors',
'FILE:%s' % paths.KDC_CA_BUNDLE_PEM))
kropts.append(
krbconf.setOption('pkinit_pool',
'FILE:%s' % paths.CA_BUNDLE_PEM))
ropts = [{
'name': cli_realm,
'type': 'subsection',
'value': kropts
}]
opts.append(krbconf.setSection('realms', ropts))
opts.append(krbconf.emptyLine())
# [domain_realm]
dropts = [
krbconf.setOption('.{}'.format(cli_domain), cli_realm),
krbconf.setOption(cli_domain, cli_realm),
krbconf.setOption(client_hostname, cli_realm)
]
# add client domain mapping if different from server domain
if cli_domain != client_domain:
dropts.extend([
krbconf.setOption('.{}'.format(client_domain), cli_realm),
krbconf.setOption(client_domain, cli_realm)
])
opts.extend([
krbconf.setSection('domain_realm', dropts),
krbconf.emptyLine()
])
logger.debug("Writing Kerberos configuration to %s:", filename)
logger.debug("%s", krbconf.dump(opts))
krbconf.newConf(filename, opts)
# umask applies when creating a new file but we want 0o644 here
os.chmod(filename, 0o644)
def configure_certmonger(
fstore, subject_base, cli_realm, hostname, options, ca_enabled):
cmonger = services.knownservices.certmonger
if not options.request_cert:
# Conditionally restart certmonger to pick up the new IPA
# configuration.
try:
cmonger.try_restart()
except Exception as e:
logger.error(
"Failed to conditionally restart the %s daemon: %s",
cmonger.service_name, str(e))
return
if not ca_enabled:
logger.warning("An RA is not configured on the server. "
"Not requesting host certificate.")
return
principal = 'host/%s@%s' % (hostname, cli_realm)
if options.hostname:
# If the hostname is explicitly set then we need to tell certmonger
# which principal name to use when requesting certs.
certmonger.add_principal_to_cas(principal)
try:
cmonger.enable()
cmonger.start()
except Exception as e:
logger.error(
"Failed to configure automatic startup of the %s daemon: %s",
cmonger.service_name, str(e))
logger.warning(
"Automatic certificate management will not be available")
# Request our host cert
subject = str(DN(('CN', hostname), subject_base))
passwd_fname = os.path.join(paths.IPA_NSSDB_DIR, 'pwdfile.txt')
try:
certmonger.request_and_wait_for_cert(
certpath=paths.IPA_NSSDB_DIR,
storage='NSSDB',
nickname='Local IPA host',
subject=subject,
dns=[hostname],
principal=principal,
passwd_fname=passwd_fname,
resubmit_timeout=120,
)
except Exception as e:
logger.exception("certmonger request failed")
raise ScriptError(
"{} request for host certificate failed: {}".format(
cmonger.service_name, e
),
rval=CLIENT_INSTALL_ERROR
)
def configure_sssd_conf(
fstore, cli_realm, cli_domain, cli_server, options,
client_domain, client_hostname):
try:
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.import_config()
except Exception as e:
if os.path.exists(paths.SSSD_CONF) and options.preserve_sssd:
# SSSD config is in place but we are unable to read it
# In addition, we are instructed to preserve it
# This all means we can't use it and have to bail out
logger.error(
"SSSD config exists but cannot be parsed: %s", str(e))
logger.error(
"Was instructed to preserve existing SSSD config")
logger.info(
"Correct errors in /etc/sssd/sssd.conf and re-run "
"installation")
return 1
# SSSD configuration does not exist or we are not asked to preserve it,
# create new one
# We do make new SSSDConfig instance because IPAChangeConf-derived
# classes have no means to reset their state and ParseError exception
# could come due to parsing error from older version which cannot be
# upgraded anymore, leaving sssdconfig instance practically unusable
# Note that we already backed up sssd.conf before going into this
# routine
if isinstance(e, IOError):
pass
else:
# It was not IOError so it must have been parsing error
logger.error(
"Unable to parse existing SSSD config. "
"As option --preserve-sssd was not specified, new config "
"will override the old one.")
logger.info(
"The old /etc/sssd/sssd.conf is backed up and "
"will be restored during uninstall.")
logger.debug("New SSSD config will be created")
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.new_config()
try:
domain = sssdconfig.new_domain(cli_domain)
except SSSDConfig.DomainAlreadyExistsError:
logger.info(
"Domain %s is already configured in existing SSSD "
"config, creating a new one.",
cli_domain)
logger.info(
"The old /etc/sssd/sssd.conf is backed up and will be restored "
"during uninstall.")
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.new_config()
domain = sssdconfig.new_domain(cli_domain)
if options.on_master:
sssd_enable_ifp(sssdconfig)
if (
(options.conf_ssh and os.path.isfile(paths.SSH_CONFIG)) or
(options.conf_sshd and os.path.isfile(paths.SSHD_CONFIG))
):
try:
sssdconfig.new_service('ssh')
except SSSDConfig.ServiceAlreadyExists:
pass
except SSSDConfig.ServiceNotRecognizedError:
logger.error(
"Unable to activate the SSH service in SSSD config.")
logger.info(
"Please make sure you have SSSD built with SSH support "
"installed.")
logger.info(
"Configure SSH support manually in /etc/sssd/sssd.conf.")
sssdconfig.activate_service('ssh')
if options.conf_sudo:
# Activate the service in the SSSD config
try:
sssdconfig.new_service('sudo')
except SSSDConfig.ServiceAlreadyExists:
pass
except SSSDConfig.ServiceNotRecognizedError:
logger.error(
"Unable to activate the SUDO service in SSSD config.")
sssdconfig.activate_service('sudo')
tasks.enable_sssd_sudo(fstore)
domain.add_provider('ipa', 'id')
# add discovery domain if client domain different from server domain
# do not set this config in server mode (#3947)
if not options.on_master and cli_domain != client_domain:
domain.set_option('dns_discovery_domain', cli_domain)
if not options.on_master:
if options.primary:
domain.set_option('ipa_server', ', '.join(cli_server))
else:
domain.set_option(
'ipa_server', '_srv_, %s' % ', '.join(cli_server))
else:
domain.set_option('ipa_server_mode', 'True')
# the master should only use itself for Kerberos
domain.set_option('ipa_server', cli_server[0])
# increase memcache timeout to 10 minutes when in server mode
try:
nss_service = sssdconfig.get_service('nss')
except SSSDConfig.NoServiceError:
nss_service = sssdconfig.new_service('nss')
nss_service.set_option('memcache_timeout', 600)
sssdconfig.save_service(nss_service)
sssd_enable_service(sssdconfig, 'nss')
sssd_enable_service(sssdconfig, 'pam')
if options.conf_ssh:
sssd_enable_service(sssdconfig, 'ssh')
domain.set_option('ipa_domain', cli_domain)
domain.set_option('ipa_hostname', client_hostname)
if cli_domain.lower() != cli_realm.lower():
domain.set_option('krb5_realm', cli_realm)
# Might need this if /bin/hostname doesn't return a FQDN
# domain.set_option('ipa_hostname', 'client.example.com')
domain.add_provider('ipa', 'auth')
domain.add_provider('ipa', 'chpass')
if not options.permit:
domain.add_provider('ipa', 'access')
else:
domain.add_provider('permit', 'access')
domain.set_option('cache_credentials', True)
# SSSD will need TLS for checking if ipaMigrationEnabled attribute is set
# Note that SSSD will force StartTLS because the channel is later used for
# authentication as well if password migration is enabled. Thus set
# the option unconditionally.
domain.set_option('ldap_tls_cacert', paths.IPA_CA_CRT)
if options.dns_updates:
domain.set_option('dyndns_update', True)
if options.dns_over_tls:
server_ip = str(list(dnsutil.resolve_ip_addresses(
cli_server[0]))[0])
domain.set_option('dyndns_server', 'dns+tls://{}:853#{}'
.format(server_ip, cli_server[0]))
if options.all_ip_addresses:
domain.set_option('dyndns_iface', '*')
else:
iface = get_server_connection_interface(cli_server[0])
domain.set_option('dyndns_iface', iface)
if options.krb5_offline_passwords:
domain.set_option('krb5_store_password_if_offline', True)
domain.set_active(True)
sssdconfig.save_domain(domain)
sssdconfig.write(paths.SSSD_CONF)
return 0
def sssd_enable_service(sssdconfig, name):
try:
sssdconfig.new_service(name)
except SSSDConfig.ServiceAlreadyExists:
pass
except SSSDConfig.ServiceNotRecognizedError:
logger.error(
"Unable to activate the '%s' service in SSSD config.", name)
logger.info(
"Please make sure you have SSSD built with %s support "
"installed.", name)
logger.info(
"Configure %s support manually in /etc/sssd/sssd.conf.", name)
return None
sssdconfig.activate_service(name)
return sssdconfig.get_service(name)
def sssd_enable_ifp(sssdconfig, allow_httpd=False):
"""Enable and configure libsss_simpleifp plugin
Allow the ``ipaapi`` user to access IFP. In case allow_httpd is true,
the Apache HTTPd user is also allowed to access IFP. For smart card
authentication, mod_lookup_identity must be allowed to access user
information.
"""
service = sssd_enable_service(sssdconfig, 'ifp')
if service is None:
# unrecognized service
return
try:
uids = service.get_option('allowed_uids')
except SSSDConfig.NoOptionError:
uids = set()
else:
uids = {s.strip() for s in uids.split(',') if s.strip()}
# SSSD supports numeric and string UIDs
# ensure that root is allowed to access IFP, might be 0 or root
if uids.isdisjoint({'0', 'root'}):
uids.add('root')
# allow IPA API to access IFP
uids.add(IPAAPI_USER)
if allow_httpd:
uids.add(constants.HTTPD_USER)
service.set_option('allowed_uids', ', '.join(sorted(uids)))
sssdconfig.save_service(service)
def change_ssh_config(filename, changes, sections):
if not changes:
return True
try:
f = open(filename, 'r')
except IOError as e:
logger.error("Failed to open '%s': %s", filename, str(e))
return False
change_keys = tuple(key.lower() for key in changes)
section_keys = tuple(key.lower() for key in sections)
lines = []
in_section = False
for line in f:
line = line.rstrip('\n')
pline = line.strip()
if not pline or pline.startswith('#'):
lines.append(line)
continue
option = pline.split()[0].lower()
if option in section_keys:
in_section = True
break
if option in change_keys:
line = '#' + line
lines.append(line)
for option, value in changes.items():
if value is not None:
lines.append('%s %s' % (option, value))
if in_section:
lines.append('')
lines.append(line)
for line in f:
line = line.rstrip('\n')
lines.append(line)
lines.append('')
f.close()
try:
f = open(filename, 'w')
except IOError as e:
logger.error("Failed to open '%s': %s", filename, str(e))
return False
f.write('\n'.join(lines))
f.close()
return True
def configure_ssh_config(fstore, options):
if not os.path.isfile(paths.SSH_CONFIG):
logger.info("%s not found, skipping configuration", paths.SSH_CONFIG)
return
fstore.backup_file(paths.SSH_CONFIG)
def ssh_version_supports_include():
with open(paths.SSH_CONFIG, 'r') as f:
for line in f:
if re.match(r"^Include\s", line):
return True
return False
if ssh_version_supports_include():
create_ssh_ipa_config(options)
else:
modify_ssh_config(options)
logger.info('Configured %s', paths.SSH_CONFIG)
def modify_ssh_config(options):
changes = {'PubkeyAuthentication': 'yes'}
# sss_ssh_knownhostsproxy is deprecated in favor of sss_ssh_knownhosts
# use sss_ssh_knownhosts when possible
enableknownhosts = bool(
options.sssd and os.path.isfile(paths.SSS_SSH_KNOWNHOSTS)
)
enableproxy = bool(
options.sssd and os.path.isfile(paths.SSS_SSH_KNOWNHOSTSPROXY)
and not enableknownhosts
)
if options.sssd and enableknownhosts:
changes[
'KnownHostsCommand'] = '%s %%H' % paths.SSS_SSH_KNOWNHOSTS
if options.sssd and enableproxy:
changes[
'ProxyCommand'] = '%s -p %%p %%h' % paths.SSS_SSH_KNOWNHOSTSPROXY
changes['GlobalKnownHostsFile'] = paths.SSSD_PUBCONF_KNOWN_HOSTS
if options.trust_sshfp:
changes['VerifyHostKeyDNS'] = 'yes'
change_ssh_config(paths.SSH_CONFIG, changes, ['Host', 'Match'])
def create_ssh_ipa_config(options):
"""Add the IPA snippet for ssh"""
# sss_ssh_knownhostsproxy is deprecated in favor of sss_ssh_knownhosts
# use sss_ssh_knownhosts when possible
enableknownhosts = bool(
options.sssd and os.path.isfile(paths.SSS_SSH_KNOWNHOSTS)
)
enableproxy = bool(
options.sssd and os.path.isfile(paths.SSS_SSH_KNOWNHOSTSPROXY)
and not enableknownhosts
)
ipautil.copy_template_file(
os.path.join(paths.SSH_IPA_CONFIG_TEMPLATE),
paths.SSH_IPA_CONFIG,
dict(
ENABLEKNOWNHOSTS='' if enableknownhosts else '#',
KNOWNHOSTSCOMMAND=paths.SSS_SSH_KNOWNHOSTS,
ENABLEPROXY='' if enableproxy else '#',
KNOWNHOSTSPROXY=paths.SSS_SSH_KNOWNHOSTSPROXY,
KNOWNHOSTS=paths.SSSD_PUBCONF_KNOWN_HOSTS,
VERIFYHOSTKEYDNS='' if options.trust_sshfp else '#'
)
)
os.chmod(paths.SSH_IPA_CONFIG, 0o644)
def configure_sshd_config(fstore, options):
sshd = services.knownservices.sshd
if not os.path.isfile(paths.SSHD_CONFIG):
logger.info("%s not found, skipping configuration", paths.SSHD_CONFIG)
return
fstore.backup_file(paths.SSHD_CONFIG)
# If openssh-server >= 8.2, the config needs to go in a new snippet
# in /etc/ssh/sshd_config.d/04-ipa.conf
# instead of /etc/ssh/sshd_config file
def sshd_version_supports_include():
with open(paths.SSHD_CONFIG, 'r') as f:
for line in f:
if re.match(r"^Include\s", line):
return True
return False
if sshd_version_supports_include():
create_sshd_ipa_config(options)
else:
modify_sshd_config(options)
if sshd.is_running():
try:
sshd.restart()
except Exception as e:
log_service_error(sshd.service_name, 'restart', e)
def modify_sshd_config(options):
changes = {
'PubkeyAuthentication': 'yes',
'KerberosAuthentication': 'no',
'GSSAPIAuthentication': 'yes',
'UsePAM': 'yes',
'ChallengeResponseAuthentication': 'yes',
}
if options.sssd and os.path.isfile(paths.SSS_SSH_AUTHORIZEDKEYS):
authorized_keys_changes = None
candidates = (
{
'AuthorizedKeysCommand': paths.SSS_SSH_AUTHORIZEDKEYS,
'AuthorizedKeysCommandUser': 'nobody',
},
{
'AuthorizedKeysCommand': paths.SSS_SSH_AUTHORIZEDKEYS,
'AuthorizedKeysCommandRunAs': 'nobody',
},
{
'PubKeyAgent': '%s %%u' % paths.SSS_SSH_AUTHORIZEDKEYS,
'PubKeyAgentRunAs': 'nobody',
},
)
for candidate in candidates:
args = [paths.SSHD, '-t', '-f', os.devnull]
for item in candidate.items():
args.append('-o')
args.append('%s=%s' % item)
result = ipautil.run(args, raiseonerr=False)
if result.returncode == 0:
authorized_keys_changes = candidate
break
if authorized_keys_changes is not None:
changes.update(authorized_keys_changes)
else:
logger.warning(
"Installed OpenSSH server does not support dynamically "
"loading authorized user keys. Public key authentication of "
"IPA users will not be available.")
change_ssh_config(paths.SSHD_CONFIG, changes, ['Match'])
logger.info('Configured %s', paths.SSHD_CONFIG)
def create_sshd_ipa_config(options):
"""Add the IPA snippet for sshd"""
sssd_sshd_options = ""
if options.sssd and os.path.isfile(paths.SSS_SSH_AUTHORIZEDKEYS):
sssd_sshd_options = textwrap.dedent("""\
AuthorizedKeysCommand {}
AuthorizedKeysCommandUser nobody
""").format(paths.SSS_SSH_AUTHORIZEDKEYS)
ipautil.copy_template_file(
os.path.join(paths.SSHD_IPA_CONFIG_TEMPLATE),
paths.SSHD_IPA_CONFIG,
dict(
SSSD_SSHD_OPTIONS=sssd_sshd_options,
)
)
logger.info('Configured %s', paths.SSHD_IPA_CONFIG)
def configure_automount(options, statestore):
logger.info('\nConfiguring automount:')
args = [
paths.IPA_CLIENT_AUTOMOUNT, '--debug', '-U', '--location',
options.location
]
if options.server:
args.extend(['--server', options.server[0]])
if not options.sssd:
args.append('--no-sssd')
statestore.backup_state('installation', 'automount', True)
try:
result = run(args)
except Exception as e:
logger.error('Automount configuration failed: %s', str(e))
else:
logger.info('%s', result.output_log)
finally:
statestore.delete_state('installation', 'automount')
def configure_nisdomain(options, domain, statestore):
domain = options.nisdomain or domain
logger.info('Configuring %s as NIS domain.', domain)
nis_domain_name = ''
# First backup the old NIS domain name
if os.path.exists(paths.BIN_NISDOMAINNAME):
try:
result = ipautil.run(
[paths.BIN_NISDOMAINNAME],
capture_output=True)
except CalledProcessError:
pass
else:
nis_domain_name = result.output
statestore.backup_state('network', 'nisdomain', nis_domain_name)
# Backup the state of the domainname service
statestore.backup_state(
"domainname", "enabled",
services.knownservices.domainname.is_enabled())
# Set the new NIS domain name
tasks.set_nisdomain(domain)
# Enable and start the domainname service
services.knownservices.domainname.enable()
# Restart rather than start so that new NIS domain name is loaded
# if the service is already running
services.knownservices.domainname.restart()
def unconfigure_nisdomain(statestore):
# Set the nisdomain permanent and current nisdomain configuration as it was
if statestore.has_state('network'):
old_nisdomain = statestore.restore_state('network', 'nisdomain') or ''
if old_nisdomain:
logger.info('Restoring %s as NIS domain.', old_nisdomain)
else:
logger.info('Unconfiguring the NIS domain.')
tasks.set_nisdomain(old_nisdomain)
# Restore the configuration of the domainname service
enabled = statestore.restore_state('domainname', 'enabled')
if not enabled:
services.knownservices.domainname.disable()
def get_iface_from_ip(ip_addr):
for interface in netifaces.interfaces():
if_addrs = netifaces.ifaddresses(interface)
for family in [netifaces.AF_INET, netifaces.AF_INET6]:
for ip in if_addrs.get(family, []):
if ip['addr'] == ip_addr:
return interface
raise RuntimeError("IP %s not assigned to any interface." % ip_addr)
def get_local_ipaddresses(iface=None):
if iface:
interfaces = [iface]
else:
interfaces = netifaces.interfaces()
ips = []
for interface in interfaces:
if_addrs = netifaces.ifaddresses(interface)
for family in [netifaces.AF_INET, netifaces.AF_INET6]:
for ip in if_addrs.get(family, []):
try:
ips.append(ipautil.CheckedIPAddress(ip['addr']))
logger.debug('IP check successful: %s', ip['addr'])
except ValueError as e:
logger.debug('IP check failed: %s', e)
return ips
def do_nsupdate(update_txt, options, server):
logger.debug("Writing nsupdate commands to %s:", UPDATE_FILE)
logger.debug("%s", update_txt)
with open(UPDATE_FILE, "w") as f:
f.write(update_txt)
result = False
try:
if options.dns_over_tls:
ipautil.run([paths.NSUPDATE, '-p', '853', '-S',
'-H', server, '-g', UPDATE_FILE])
else:
ipautil.run([paths.NSUPDATE, '-g', UPDATE_FILE])
result = True
except CalledProcessError as e:
logger.debug('nsupdate (GSS-TSIG) failed: %s', str(e))
try:
if options.dns_over_tls:
ipautil.run([paths.NSUPDATE, '-p', '853', '-S',
'-H', server, '-g', UPDATE_FILE])
else:
ipautil.run([paths.NSUPDATE, UPDATE_FILE])
try:
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.import_config()
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 name == api.env.domain and provider == "ipa":
try:
if domain.get_option('dyndns_update') is True:
domain.set_option('dyndns_auth', 'none')
sssdconfig.save_domain(domain)
sssdconfig.write(paths.SSSD_CONF)
break
except SSSDConfig.NoOptionError:
break
except Exception as e:
logger.debug('Unable to update SSSD configuration: %s', str(e))
logger.info(
'Failed to configure SSSD for unauthenticated DNS '
'dynamic updates. SSSD might be unable to update DNS '
'entries for this host.'
)
result = True
except CalledProcessError as e:
logger.debug('Unauthenticated nsupdate failed: %s', str(e))
try:
os.remove(UPDATE_FILE)
except Exception:
pass
return result
DELETE_TEMPLATE_A = """
update delete $HOSTNAME. IN A
show
send
"""
DELETE_TEMPLATE_AAAA = """
update delete $HOSTNAME. IN AAAA
show
send
"""
ADD_TEMPLATE_A = """
update add $HOSTNAME. $TTL IN A $IPADDRESS
show
send
"""
ADD_TEMPLATE_AAAA = """
update add $HOSTNAME. $TTL IN AAAA $IPADDRESS
show
send
"""
UPDATE_FILE = paths.IPA_DNS_UPDATE_TXT
CCACHE_FILE = paths.IPA_DNS_CCACHE
def update_dns(server, hostname, options):
try:
ips = get_local_ipaddresses()
except CalledProcessError as e:
logger.error("Cannot update DNS records. %s", e)
ips = None
if options.all_ip_addresses:
if ips is None:
raise RuntimeError("Unable to get local IP addresses.")
update_ips = ips
elif options.ip_addresses:
update_ips = []
for ip in options.ip_addresses:
update_ips.append(ipautil.CheckedIPAddress(ip))
else:
try:
iface = get_server_connection_interface(server)
except RuntimeError as e:
logger.error("Cannot update DNS records. %s", e)
return
try:
update_ips = get_local_ipaddresses(iface)
except CalledProcessError as e:
logger.error("Cannot update DNS records. %s", e)
return
if not update_ips:
logger.info("Failed to determine this machine's ip address(es).")
return
no_matching_interface_for_ip_address_warning(update_ips)
update_txt = "debug\n"
if options.dns_over_tls:
update_txt += "server %s 853\n" % server
update_txt += ipautil.template_str(DELETE_TEMPLATE_A,
dict(HOSTNAME=hostname))
update_txt += ipautil.template_str(DELETE_TEMPLATE_AAAA,
dict(HOSTNAME=hostname))
for ip in update_ips:
sub_dict = dict(HOSTNAME=hostname, IPADDRESS=ip, TTL=1200)
if ip.version == 4:
template = ADD_TEMPLATE_A
elif ip.version == 6:
template = ADD_TEMPLATE_AAAA
update_txt += ipautil.template_str(template, sub_dict)
if not do_nsupdate(update_txt, options, server):
logger.error("Failed to update DNS records.")
verify_dns_update(hostname, update_ips)
def verify_dns_update(fqdn, ips):
"""
Verify that the fqdn resolves to all IP addresses and
that there's matching PTR record for every IP address.
"""
# verify A/AAAA records
missing_ips = [str(ip) for ip in ips]
extra_ips = []
for record_type in [dns.rdatatype.A, dns.rdatatype.AAAA]:
logger.debug('DNS resolver: Query: %s IN %s',
fqdn, dns.rdatatype.to_text(record_type))
try:
answers = dnsutil.resolve(fqdn, record_type)
except (dns.resolver.NoAnswer, dns.resolver.NXDOMAIN):
logger.debug('DNS resolver: No record.')
except dns.resolver.NoNameservers:
logger.debug('DNS resolver: No nameservers answered the query.')
except dns.exception.DNSException:
logger.debug('DNS resolver error.')
else:
for rdata in answers:
try:
missing_ips.remove(rdata.address)
except ValueError:
extra_ips.append(rdata.address)
# verify PTR records
fqdn_name = dns.name.from_text(fqdn)
wrong_reverse = {}
missing_reverse = [str(ip) for ip in ips]
for ip in ips:
ip_str = str(ip)
logger.debug('DNS resolver: Query: %s IN PTR', ip_str)
try:
answers = dnsutil.resolve_address(ip_str)
except (dns.resolver.NoAnswer, dns.resolver.NXDOMAIN):
logger.debug('DNS resolver: No record.')
except dns.resolver.NoNameservers:
logger.debug('DNS resolver: No nameservers answered thequery.')
except dns.exception.DNSException:
logger.debug('DNS resolver error.')
else:
missing_reverse.remove(ip_str)
for rdata in answers:
if not rdata.target == fqdn_name:
wrong_reverse.setdefault(ip_str, []).append(rdata.target)
if missing_ips:
logger.warning('Missing A/AAAA record(s) for host %s: %s.',
fqdn, ', '.join(missing_ips))
if extra_ips:
logger.warning('Extra A/AAAA record(s) for host %s: %s.',
fqdn, ', '.join(extra_ips))
if missing_reverse:
logger.warning('Missing reverse record(s) for address(es): %s.',
', '.join(missing_reverse))
if wrong_reverse:
logger.warning('Incorrect reverse record(s):')
for ip, targets in wrong_reverse.items():
for target in targets:
logger.warning('%s is pointing to %s instead of %s',
ip, target, fqdn_name)
def get_server_connection_interface(server):
"""Connect to IPA server, get all ip addresses of interface used to connect
"""
last_error = None
for res in socket.getaddrinfo(
server, 389, socket.AF_UNSPEC, socket.SOCK_STREAM):
af, socktype, proto, _canonname, sa = res
try:
s = socket.socket(af, socktype, proto)
except socket.error as e:
last_error = e
continue
try:
s.connect(sa)
sockname = s.getsockname()
ip = sockname[0]
except socket.error as e:
last_error = e
continue
finally:
if s:
s.close()
try:
return get_iface_from_ip(ip)
except (CalledProcessError, RuntimeError) as e:
last_error = e
msg = "Cannot get server connection interface"
if last_error:
msg += ": %s" % last_error
raise RuntimeError(msg)
def client_dns(server, hostname, options, statestore):
try:
verify_host_resolvable(hostname)
dns_ok = True
except errors.DNSNotARecordError:
logger.warning("Hostname (%s) does not have A/AAAA record.",
hostname)
dns_ok = False
except errors.DNSResolverError as ex:
logger.warning("DNS resolution for hostname %s failed: %s",
hostname, ex)
dns_ok = False
# Setup DNS over TLS
if options.dns_over_tls:
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
statestore.backup_state("dns_over_tls", "enabled", True)
save_state(services.knownservices["unbound"], statestore)
# setup and enable Unbound as resolver
server_ip = str(list(dnsutil.resolve_ip_addresses(server))[0])
forward_addr = "forward-addr: %s#%s" % (server_ip, server)
# module_config_iterator is commented out if DNSSEC validation is
# not disabled.
module_config_iterator = '' if options.no_dnssec_validation else '# '
# backup and remove all previous Unbound configuration
for filename in os.listdir(paths.UNBOUND_CONFIG_DIR):
filepath = os.path.join(paths.UNBOUND_CONFIG_DIR, filename)
if filepath == paths.UNBOUND_CONF:
continue
fstore.backup_file(filepath)
remove_file(filepath)
ipautil.copy_template_file(
paths.UNBOUND_CONF_SRC,
paths.UNBOUND_CONF,
dict(
TLS_CERT_BUNDLE_PATH=os.path.join(
paths.OPENSSL_CERTS_DIR, "ca-bundle.crt"),
FORWARD_ADDRS=forward_addr,
MODULE_CONFIG_ITERATOR=module_config_iterator
)
)
sr = services.knownservices["systemd-resolved"]
if sr.is_running():
sr.stop()
sr.disable()
nm = services.knownservices["NetworkManager"]
if nm.is_enabled():
with open(paths.NETWORK_MANAGER_IPA_CONF, "w") as f:
dns_none = [
"# auto-generated by IPA installer",
"[main]",
"dns=none\n"
]
f.write("\n".join(dns_none))
nm.reload_or_restart()
# Overwrite resolv.conf to point to Unbound
cfg = [
"# auto-generated by IPA installer",
"search .",
"nameserver 127.0.0.55\n"
]
fstore.backup_file(paths.RESOLV_CONF)
with open(paths.RESOLV_CONF, 'w') as f:
f.write('\n'.join(cfg))
os.chmod(paths.RESOLV_CONF, 0o644)
services.knownservices.unbound.enable()
services.knownservices.unbound.restart()
logger.info("DNS encryption support was enabled. "
"Unbound is configured to listen on 127.0.0.55:53 and "
"forward to upstream DoT servers.")
if (
options.dns_updates or options.all_ip_addresses or
options.ip_addresses or not dns_ok
):
update_dns(server, hostname, options)
def check_ip_addresses(options):
if options.ip_addresses:
for ip in options.ip_addresses:
try:
ipautil.CheckedIPAddress(ip)
except ValueError as e:
logger.error('%s', e)
return False
return True
def update_ssh_keys(hostname, ssh_dir, options, server):
if not os.path.isdir(ssh_dir):
return
pubkeys = []
for basename in os.listdir(ssh_dir):
if not basename.endswith('.pub'):
continue
filename = os.path.join(ssh_dir, basename)
try:
f = open(filename, 'r')
except IOError as e:
logger.warning("Failed to open '%s': %s", filename, str(e))
continue
for line in f:
line = line.strip()
if not line or line.startswith('#'):
continue
try:
pubkey = SSHPublicKey(line)
except (ValueError, UnicodeDecodeError) as e:
logger.debug("Decoding line '%s' failed: %s", line, e)
continue
logger.info("Adding SSH public key from %s", filename)
pubkeys.append(pubkey)
f.close()
try:
# Use the RPC directly so older servers are supported
api.Backend.rpcclient.forward(
'host_mod',
ipautil.fsdecode(hostname),
ipasshpubkey=[pk.openssh() for pk in pubkeys],
updatedns=False,
version=u'2.26', # this version adds support for SSH public keys
)
except errors.EmptyModlist:
pass
except Exception as e:
logger.info("host_mod: %s", str(e))
logger.warning("Failed to upload host SSH public keys.")
return
if options.create_sshfp:
ttl = 1200
update_txt = 'debug\n'
if options.dns_over_tls:
update_txt += "server %s 853\n" % server
update_txt += 'update delete %s. IN SSHFP\nshow\nsend\n' % hostname
for pubkey in pubkeys:
sshfp = pubkey.fingerprint_dns_sha1()
if sshfp is not None:
update_txt += 'update add %s. %s IN SSHFP %s\n' % (
hostname, ttl, sshfp)
sshfp = pubkey.fingerprint_dns_sha256()
if sshfp is not None:
update_txt += 'update add %s. %s IN SSHFP %s\n' % (
hostname, ttl, sshfp)
update_txt += 'show\nsend\n'
if not do_nsupdate(update_txt, options, server):
logger.warning("Could not update DNS SSHFP records.")
def print_port_conf_info():
logger.info(
"Please make sure the following ports are opened "
"in the firewall settings:\n"
" TCP: 80, 88, 389\n"
" UDP: 88 (at least one of TCP/UDP ports 88 has to be open)\n"
"Also note that following ports are necessary for ipa-client "
"working properly after enrollment:\n"
" TCP: 464\n"
" UDP: 464, 123 (if NTP enabled)")
def cert_summary(msg, certs, indent=' '):
if msg:
s = '%s\n' % msg
else:
s = ''
for cert in certs:
s += '%sSubject: %s\n' % (indent, DN(cert.subject))
s += '%sIssuer: %s\n' % (indent, DN(cert.issuer))
s += '%sValid From: %s\n' % (indent, cert.not_valid_before_utc)
s += '%sValid Until: %s\n' % (indent, cert.not_valid_after_utc)
s += '\n'
s = s[:-1]
return s
def get_certs_from_ldap(server, base_dn, realm, ca_enabled):
conn = ipaldap.LDAPClient.from_hostname_plain(server)
try:
conn.gssapi_bind()
certs = certstore.get_ca_certs(conn, base_dn, realm, ca_enabled)
except errors.NotFound:
raise errors.NoCertificateError(entry=server)
except errors.NetworkError as e:
raise errors.NetworkError(uri=conn.ldap_uri, error=str(e))
except Exception as e:
raise errors.LDAPError(str(e))
finally:
conn.unbind()
return certs
def get_ca_certs_from_file(url):
"""
Get the CA cert from a user supplied file and write it into the
paths.IPA_CA_CRT file.
Raises errors.NoCertificateError if unable to read cert.
Raises errors.FileError if unable to write cert.
"""
try:
parsed = urlparse(url, 'file')
except Exception:
raise errors.FileError(reason="unable to parse file url '%s'" % url)
if parsed.scheme != 'file':
raise errors.FileError(reason="url is not a file scheme '%s'" % url)
filename = parsed.path
if not os.path.exists(filename):
raise errors.FileError(reason="file '%s' does not exist" % filename)
if not os.path.isfile(filename):
raise errors.FileError(reason="file '%s' is not a file" % filename)
logger.debug("trying to retrieve CA cert from file %s", filename)
try:
certs = x509.load_certificate_list_from_file(filename)
except Exception:
raise errors.NoCertificateError(entry=filename)
return certs
def get_ca_certs_from_http(url, warn=True):
"""
Use HTTP to retrieve the CA cert and write it into the paths.IPA_CA_CRT
file. This is insecure and should be avoided.
Raises errors.NoCertificateError if unable to retrieve and write cert.
"""
if warn:
logger.warning("Downloading the CA certificate via HTTP, "
"this is INSECURE")
logger.debug("trying to retrieve CA cert via HTTP from %s", url)
try:
result = run([paths.BIN_CURL, "-o", "-", url], capture_output=True)
except CalledProcessError:
raise errors.NoCertificateError(entry=url)
stdout = result.raw_output
try:
certs = x509.load_certificate_list(stdout)
except Exception:
raise errors.NoCertificateError(entry=url)
return certs
def get_ca_certs_from_ldap(server, basedn, realm):
"""
Retrieve th CA cert from the LDAP server by binding to the
server with GSSAPI using the current Kerberos credentials.
Write the retrieved cert into the paths.IPA_CA_CRT file.
Raises errors.NoCertificateError if cert is not found.
Raises errors.NetworkError if LDAP connection can't be established.
Raises errors.LDAPError for any other generic LDAP error.
Raises errors.OnlyOneValueAllowed if more than one cert is found.
Raises errors.FileError if unable to write cert.
"""
logger.debug("trying to retrieve CA cert via LDAP from %s", server)
try:
certs = get_certs_from_ldap(server, basedn, realm, False)
except Exception as e:
logger.debug("get_ca_certs_from_ldap() error: %s", e)
raise
certs = [c[0] for c in certs if c[2] is not False]
return certs
def validate_new_ca_certs(existing_ca_certs, new_ca_certs, ask,
override=False):
if existing_ca_certs is None:
logger.info(
"%s",
cert_summary("Successfully retrieved CA cert", new_ca_certs))
return
existing_ca_certs = set(existing_ca_certs)
new_ca_certs = set(new_ca_certs)
if existing_ca_certs > new_ca_certs:
logger.warning(
"The CA cert available from the IPA server does not match the\n"
"local certificate available at %s", paths.IPA_CA_CRT)
logger.warning(
"%s",
cert_summary("Existing CA cert:", existing_ca_certs))
logger.warning(
"%s",
cert_summary("Retrieved CA cert:", new_ca_certs))
if override:
logger.warning("Overriding existing CA cert\n")
elif not ask or not user_input(
"Do you want to replace the local certificate with the CA\n"
"certificate retrieved from the IPA server?", True):
raise errors.CertificateInvalidError(name='Retrieved CA')
else:
logger.debug(
"Existing CA cert and Retrieved CA cert are identical")
def get_ca_certs(fstore, options, server, basedn, realm):
"""
Examine the different options and determine a method for obtaining
the CA cert.
If successful the CA cert will have been written into paths.IPA_CA_CRT.
Raises errors.NoCertificateError if not successful.
The logic for determining how to load the CA cert is as follow:
In the OTP case (not -p and -w):
1. load from user supplied cert file
2. else load from HTTP
In the 'user_auth' case ((-p and -w) or interactive):
1. load from user supplied cert file
2. load from LDAP using SASL/GSS/Krb5 auth
(provides mutual authentication, integrity and security)
3. if LDAP failed and interactive ask for permission to
use insecure HTTP (default: No)
In the unattended case:
1. load from user supplied cert file
2. load from HTTP if --force specified else fail
In all cases if HTTP is used emit warning message
"""
ca_file = paths.IPA_CA_CRT + ".new"
def ldap_url():
return urlunparse(('ldap', ipautil.format_netloc(server),
'', '', '', ''))
def file_url():
return urlunparse(('file', '', options.ca_cert_file,
'', '', ''))
def http_url():
return urlunparse(('http', ipautil.format_netloc(server),
'/ipa/config/ca.crt', '', '', ''))
interactive = not options.unattended
otp_auth = options.principal is None and options.password is not None
existing_ca_certs = None
ca_certs = None
if options.ca_cert_file:
url = file_url()
try:
ca_certs = get_ca_certs_from_file(url)
except errors.FileError as e:
logger.debug("%s", e)
raise
except Exception as e:
logger.debug("%s", e)
raise errors.NoCertificateError(entry=url)
logger.debug("CA cert provided by user, use it!")
else:
if os.path.exists(paths.IPA_CA_CRT):
if os.path.isfile(paths.IPA_CA_CRT):
try:
existing_ca_certs = x509.load_certificate_list_from_file(
paths.IPA_CA_CRT)
except Exception as e:
raise errors.FileError(
reason=u"Unable to load existing CA cert '%s': %s" %
(paths.IPA_CA_CRT, e))
else:
raise errors.FileError(
reason=(
f"Existing ca cert '{paths.IPA_CA_CRT}' is not a plain "
"file"
),
)
if otp_auth:
if existing_ca_certs:
logger.info("OTP case, CA cert preexisted, use it")
else:
url = http_url()
override = not interactive
if interactive and not user_input(
"Do you want to download the CA cert from " + url + " ?\n"
"(this is INSECURE)", False
):
raise errors.NoCertificateError(
message=u"HTTP certificate download declined by user")
try:
ca_certs = get_ca_certs_from_http(url, override)
except Exception as e:
logger.debug("%s", e)
raise errors.NoCertificateError(entry=url)
validate_new_ca_certs(existing_ca_certs, ca_certs, False,
override)
else:
# Auth with user credentials
url = ldap_url()
try:
ca_certs = get_ca_certs_from_ldap(server, basedn, realm)
validate_new_ca_certs(existing_ca_certs, ca_certs, interactive)
except errors.FileError as e:
logger.debug("%s", e)
raise
except (errors.NoCertificateError, errors.LDAPError) as e:
logger.debug("%s", str(e))
url = http_url()
if existing_ca_certs:
logger.warning(
"Unable to download CA cert from LDAP\n"
"but found preexisting cert, using it.\n")
elif interactive and not user_input(
"Unable to download CA cert from LDAP.\n"
"Do you want to download the CA cert from " + url + "?\n"
"(this is INSECURE)", False
):
raise errors.NoCertificateError(
message=u"HTTP "
"certificate download declined by user")
elif not interactive and not options.force:
logger.error(
"In unattended mode without a One Time Password "
"(OTP) or without --ca-cert-file\nYou must specify"
" --force to retrieve the CA cert using HTTP")
raise errors.NoCertificateError(
message=u"HTTP "
"certificate download requires --force")
else:
try:
ca_certs = get_ca_certs_from_http(url)
except Exception as e:
logger.debug("%s", e)
raise errors.NoCertificateError(entry=url)
validate_new_ca_certs(existing_ca_certs, ca_certs,
interactive)
except Exception as e:
logger.debug("%s", str(e))
raise errors.NoCertificateError(entry=url)
if ca_certs is None and existing_ca_certs is None:
raise errors.InternalError(u"expected CA cert file '%s' to "
u"exist, but it's absent" % ca_file)
if ca_certs is not None:
try:
x509.write_certificate_list(ca_certs, ca_file, mode=0o644)
except Exception as e:
if os.path.exists(ca_file):
try:
os.unlink(ca_file)
except OSError as e2:
logger.error(
"Failed to remove '%s': %s", ca_file, e2)
raise errors.FileError(
reason=u"cannot write certificate file '%s': %s" % (
ca_file, e)
)
os.rename(ca_file, paths.IPA_CA_CRT)
# Make sure the file permissions are correct
try:
os.chmod(paths.IPA_CA_CRT, 0o644)
except Exception as e:
raise errors.FileError(reason=u"Unable set permissions on ca "
u"cert '%s': %s" % (paths.IPA_CA_CRT, e))
# IMPORTANT: First line of FF config file is ignored
FIREFOX_CONFIG_TEMPLATE = """
/* Kerberos SSO configuration */
pref("network.negotiate-auth.trusted-uris", ".$DOMAIN");
/* These are the defaults */
pref("network.negotiate-auth.gsslib", "");
pref("network.negotiate-auth.using-native-gsslib", true);
pref("network.negotiate-auth.allow-proxies", true);
"""
FIREFOX_PREFERENCES_FILENAME = "all-ipa.js"
FIREFOX_PREFERENCES_REL_PATH = "browser/defaults/preferences"
def configure_firefox(options, statestore, domain):
try:
logger.debug("Setting up Firefox configuration.")
preferences_dir = None
# Check user specified location of firefox install directory
if options.firefox_dir is not None:
pref_path = os.path.join(options.firefox_dir,
FIREFOX_PREFERENCES_REL_PATH)
if os.path.isdir(pref_path):
preferences_dir = pref_path
else:
logger.error("Directory '%s' does not exists.", pref_path)
else:
# test if firefox is installed
if os.path.isfile(paths.FIREFOX):
# find valid preferences path
for path in [paths.LIB_FIREFOX, paths.LIB64_FIREFOX]:
pref_path = os.path.join(path,
FIREFOX_PREFERENCES_REL_PATH)
if os.path.isdir(pref_path):
preferences_dir = pref_path
break
else:
logger.error(
"Firefox configuration skipped (Firefox not found).")
return
# setting up firefox
if preferences_dir is not None:
# user could specify relative path, we need to store absolute
preferences_dir = os.path.abspath(preferences_dir)
logger.debug(
"Firefox preferences directory found '%s'.", preferences_dir)
preferences_fname = os.path.join(
preferences_dir, FIREFOX_PREFERENCES_FILENAME)
update_txt = ipautil.template_str(
FIREFOX_CONFIG_TEMPLATE, dict(DOMAIN=domain))
logger.debug(
"Firefox trusted uris will be set as '.%s' domain.", domain)
logger.debug(
"Firefox configuration will be stored in '%s' file.",
preferences_fname)
try:
with open(preferences_fname, 'w') as f:
f.write(update_txt)
logger.info("Firefox sucessfully configured.")
statestore.backup_state(
'firefox', 'preferences_fname', preferences_fname)
except Exception as e:
logger.debug(
"An error occured during creating preferences file: %s.",
e)
logger.error("Firefox configuration failed.")
else:
logger.debug("Firefox preferences directory not found.")
logger.error("Firefox configuration failed.")
except Exception as e:
logger.debug("%s", str(e))
logger.error("Firefox configuration failed.")
def purge_host_keytab(realm):
try:
ipautil.run([
paths.IPA_RMKEYTAB,
'-k', paths.KRB5_KEYTAB, '-r', realm
])
except CalledProcessError as e:
if e.returncode not in (3, 5, 7):
# 3 - Unable to open keytab
# 5 - Principal name or realm not found in keytab
# 7 - Failed to set cursor, typically when errcode
# would be issued in past
logger.error(
"Error trying to clean keytab: "
"/usr/sbin/ipa-rmkeytab returned %s", e.returncode)
else:
logger.info(
"Removed old keys for realm %s from %s",
realm, paths.KRB5_KEYTAB)
def install_check(options):
global hostname
global hostname_source
global nosssd_files
global dnsok
global cli_domain
global cli_server
global subject_base
global cli_realm
global cli_kdc
global client_domain
global cli_basedn
global selinux_works
print("This program will set up IPA client.")
print("Version {}".format(version.VERSION))
print("")
cli_domain_source = 'Unknown source'
cli_server_source = 'Unknown source'
if not os.getegid() == 0:
raise ScriptError(
"You must be root to run ipa-client-install.",
rval=CLIENT_INSTALL_ERROR)
selinux_works = tasks.check_selinux_status()
if is_ipa_client_configured(on_master=options.on_master):
logger.error("IPA client is already configured on this system.")
logger.info(
"If you want to reinstall the IPA client, uninstall it first "
"using 'ipa-client-install --uninstall'.")
raise ScriptError(rval=CLIENT_ALREADY_CONFIGURED)
check_ldap_conf()
if options.conf_ntp:
try:
timeconf.check_timedate_services()
except timeconf.NTPConflictingService as e:
print(
"WARNING: conflicting time&date synchronization service "
"'{}' will be disabled in favor of chronyd\n".format(
e.conflicting_service
)
)
except timeconf.NTPConfigurationError:
pass
if options.unattended and (
options.password is None
and options.principal is None
and options.keytab is None
and options.pkinit_identity is None
and options.prompt_password is False
and not options.on_master
):
raise ScriptError(
"One of password / principal / keytab is required.",
rval=CLIENT_INSTALL_ERROR)
if options.pkinit_identity is not None and (
options.password is not None
or options.keytab is not None
):
raise ScriptError(
"pkinit_identity is mutually exclusive with password / keytab.",
rval=CLIENT_INSTALL_ERROR
)
if options.hostname:
hostname = options.hostname
hostname_source = 'Provided as option'
else:
hostname = FQDN
hostname_source = "Machine's FQDN"
if hostname != hostname.lower():
raise ScriptError(
"Invalid hostname '{}', must be lower-case.".format(hostname),
rval=CLIENT_INSTALL_ERROR
)
if hostname in ('localhost', 'localhost.localdomain'):
raise ScriptError(
"Invalid hostname, '{}' must not be used.".format(hostname),
rval=CLIENT_INSTALL_ERROR)
try:
validate_hostname(hostname, maxlen=MAXHOSTNAMELEN)
except ValueError as e:
raise ScriptError(
'invalid hostname: {}'.format(e),
rval=CLIENT_INSTALL_ERROR)
# --no-sssd is not supported any more for rhel-based distros
if not tasks.is_nosssd_supported() and not options.sssd:
raise ScriptError(
"Option '--no-sssd' is incompatible with the 'authselect' tool "
"provided by this distribution for configuring system "
"authentication resources",
rval=CLIENT_INSTALL_ERROR)
# --noac is not supported any more for rhel-based distros
if not tasks.is_nosssd_supported() and options.no_ac:
raise ScriptError(
"Option '--noac' is incompatible with the 'authselect' tool "
"provided by this distribution for configuring system "
"authentication resources",
rval=CLIENT_INSTALL_ERROR)
# --mkhomedir is not supported by fedora_container and rhel_container
if not tasks.is_mkhomedir_supported() and options.mkhomedir:
raise ScriptError(
"Option '--mkhomedir' is incompatible with the 'authselect' tool "
"provided by this distribution for configuring system "
"authentication resources",
rval=CLIENT_INSTALL_ERROR)
# When installing without the "--no-sudo" option, check whether sudo is
# available.
if options.conf_sudo:
try:
ipautil.run(['sudo', '-V'])
except FileNotFoundError:
logger.info(
"The sudo binary does not seem to be present on this "
"system. Please consider installing sudo if required."
)
# when installing with the '--no-sssd' option, check whether nss-ldap is
# installed
if not options.sssd:
if not os.path.exists(paths.PAM_KRB5_SO):
raise ScriptError(
"The pam_krb5 package must be installed",
rval=CLIENT_INSTALL_ERROR)
(nssldap_installed, nosssd_files) = nssldap_exists()
if not nssldap_installed:
raise ScriptError(
"One of these packages must be installed: nss_ldap or "
"nss-pam-ldapd",
rval=CLIENT_INSTALL_ERROR)
if options.keytab and options.principal:
raise ScriptError(
"Options 'principal' and 'keytab' cannot be used together.",
rval=CLIENT_INSTALL_ERROR)
if options.keytab and options.force_join:
logger.warning("Option 'force-join' has no additional effect "
"when used with together with option 'keytab'.")
# Remove invalid keytab file
try:
gssapi.Credentials(
store={'keytab': paths.KRB5_KEYTAB},
usage='accept',
)
except gssapi.exceptions.GSSError:
logger.debug("Deleting invalid keytab: '%s'.", paths.KRB5_KEYTAB)
remove_file(paths.KRB5_KEYTAB)
# Check if old certificate exist and show warning
if (
not options.ca_cert_file and
get_cert_path(options.ca_cert_file) == paths.IPA_CA_CRT
):
logger.warning("Using existing certificate '%s'.", paths.IPA_CA_CRT)
if not check_ip_addresses(options):
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
if options.dns_over_tls \
and not services.knownservices["unbound"].is_installed():
raise ScriptError(
"To enable DNS over TLS, package ipa-client-encrypted-dns must "
"be installed.")
if options.no_dnssec_validation and not options.dns_over_tls:
raise ScriptError(
"You can not specify --no-dnssec-validation option without the"
"--dns-over-tls option.")
# Create the discovery instance
ds = discovery.IPADiscovery()
ret = ds.search(
domain=options.domain,
servers=options.server,
realm=options.realm_name,
hostname=hostname,
ca_cert_path=get_cert_path(options.ca_cert_file)
)
if options.server and ret != 0:
# There is no point to continue with installation as server list was
# passed as a fixed list of server and thus we cannot discover any
# better result
logger.error(
"Failed to verify that %s is an IPA Server.",
', '.join(options.server))
logger.error(
"This may mean that the remote server is not up "
"or is not reachable due to network or firewall settings.")
print_port_conf_info()
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
if ret == discovery.BAD_HOST_CONFIG:
logger.error("Can't get the fully qualified name of this host")
logger.info("Check that the client is properly configured")
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
if ret == discovery.NOT_FQDN:
raise ScriptError(
"{} is not a fully-qualified hostname".format(hostname),
rval=CLIENT_INSTALL_ERROR)
if ret in (discovery.NO_LDAP_SERVER, discovery.NOT_IPA_SERVER) \
or not ds.domain:
if ret == discovery.NO_LDAP_SERVER:
if ds.server:
logger.debug("%s is not an LDAP server", ds.server)
else:
logger.debug("No LDAP server found")
elif ret == discovery.NOT_IPA_SERVER:
if ds.server:
logger.debug("%s is not an IPA server", ds.server)
else:
logger.debug("No IPA server found")
else:
logger.debug("Domain not found")
if options.domain:
cli_domain = options.domain
cli_domain_source = 'Provided as option'
elif options.unattended:
raise ScriptError(
"Unable to discover domain, not provided on command line",
rval=CLIENT_INSTALL_ERROR)
else:
logger.info(
"DNS discovery failed to determine your DNS domain")
cli_domain = user_input(
"Provide the domain name of your IPA server (ex: example.com)",
allow_empty=False)
cli_domain_source = 'Provided interactively'
logger.debug(
"will use interactively provided domain: %s", cli_domain)
ret = ds.search(
domain=cli_domain,
servers=options.server,
hostname=hostname,
ca_cert_path=get_cert_path(options.ca_cert_file))
if not cli_domain:
if ds.domain:
cli_domain = ds.domain
cli_domain_source = ds.domain_source
logger.debug("will use discovered domain: %s", cli_domain)
client_domain = hostname[hostname.find(".")+1:]
if ret in (discovery.NO_LDAP_SERVER, discovery.NOT_IPA_SERVER) \
or not ds.server:
logger.debug("IPA Server not found")
if options.server:
cli_server = options.server
cli_server_source = 'Provided as option'
elif options.unattended:
raise ScriptError(
"Unable to find IPA Server to join",
rval=CLIENT_INSTALL_ERROR)
else:
logger.debug("DNS discovery failed to find the IPA Server")
cli_server = [
user_input(
"Provide your IPA server name (ex: ipa.example.com)",
allow_empty=False)
]
cli_server_source = 'Provided interactively'
logger.debug(
"will use interactively provided server: %s", cli_server[0])
ret = ds.search(
domain=cli_domain,
servers=cli_server,
hostname=hostname,
ca_cert_path=get_cert_path(options.ca_cert_file))
else:
# Only set dnsok to True if we were not passed in one or more servers
# and if DNS discovery actually worked.
if not options.server:
(server, domain) = ds.check_domain(
ds.domain, set(), "Validating DNS Discovery")
if server and domain:
logger.debug("DNS validated, enabling discovery")
dnsok = True
else:
logger.debug("DNS discovery failed, disabling discovery")
else:
logger.debug(
"Using servers from command line, disabling DNS discovery")
if not cli_server:
if options.server:
cli_server = ds.servers
cli_server_source = 'Provided as option'
logger.debug(
"will use provided server: %s", ', '.join(options.server))
elif ds.server:
cli_server = ds.servers
cli_server_source = ds.server_source
logger.debug("will use discovered server: %s", cli_server[0])
if ret == discovery.NOT_IPA_SERVER:
logger.error("%s is not an IPA v2 Server.", cli_server[0])
print_port_conf_info()
logger.debug("(%s: %s)", cli_server[0], cli_server_source)
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
if ret == discovery.NO_ACCESS_TO_LDAP:
logger.warning("Anonymous access to the LDAP server is disabled.")
logger.info("Proceeding without strict verification.")
logger.info(
"Note: This is not an error if anonymous access "
"has been explicitly restricted.")
ret = 0
if ret == discovery.NO_TLS_LDAP:
logger.warning(
"The LDAP server requires TLS is but we do not have the CA.")
logger.info("Proceeding without strict verification.")
ret = 0
if ret != 0:
logger.error(
"Failed to verify that %s is an IPA Server.",
cli_server[0])
logger.error(
"This may mean that the remote server is not up "
"or is not reachable due to network or firewall settings.")
print_port_conf_info()
logger.debug("(%s: %s)", cli_server[0], cli_server_source)
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
cli_kdc = ds.kdc
if dnsok and not cli_kdc:
logger.error(
"DNS domain '%s' is not configured for automatic "
"KDC address lookup.", ds.realm.lower())
logger.debug("(%s: %s)", ds.realm, ds.realm_source)
logger.error("KDC address will be set to fixed value.")
if dnsok:
logger.info("Discovery was successful!")
elif not options.unattended:
if not options.server:
logger.warning(
"The failure to use DNS to find your IPA "
"server indicates that your resolv.conf file is not properly "
"configured.")
logger.info(
"Autodiscovery of servers for failover cannot work "
"with this configuration.")
logger.info(
"If you proceed with the installation, services "
"will be configured to always access the discovered server for "
"all operations and will not fail over to other servers in case "
"of failure.")
if not user_input(
"Proceed with fixed values and no DNS discovery?", False):
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
if options.conf_ntp:
if not options.on_master and not options.unattended and not (
options.ntp_servers or options.ntp_pool):
options.ntp_servers, options.ntp_pool = timeconf.get_time_source()
cli_realm = ds.realm
cli_realm_source = ds.realm_source
logger.debug("will use discovered realm: %s", cli_realm)
if options.realm_name and options.realm_name != cli_realm:
logger.error(
"The provided realm name [%s] does not match discovered one [%s]",
options.realm_name, cli_realm)
logger.debug("(%s: %s)", cli_realm, cli_realm_source)
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
cli_basedn = ds.basedn
cli_basedn_source = ds.basedn_source
logger.debug("will use discovered basedn: %s", cli_basedn)
subject_base = DN(('O', cli_realm))
logger.info("Client hostname: %s", hostname)
logger.debug("Hostname source: %s", hostname_source)
logger.info("Realm: %s", cli_realm)
logger.debug("Realm source: %s", cli_realm_source)
logger.info("DNS Domain: %s", cli_domain)
logger.debug("DNS Domain source: %s", cli_domain_source)
logger.info("IPA Server: %s", ', '.join(cli_server))
logger.debug("IPA Server source: %s", cli_server_source)
logger.info("BaseDN: %s", cli_basedn)
logger.debug("BaseDN source: %s", cli_basedn_source)
if not options.on_master:
if options.ntp_servers:
for server in options.ntp_servers:
logger.info("NTP server: %s", server)
if options.ntp_pool:
logger.info("NTP pool: %s", options.ntp_pool)
# ipa-join would fail with IP address instead of a FQDN
for srv in cli_server:
try:
socket.inet_pton(socket.AF_INET, srv)
is_ipaddr = True
except socket.error:
try:
socket.inet_pton(socket.AF_INET6, srv)
is_ipaddr = True
except socket.error:
is_ipaddr = False
if is_ipaddr:
print()
logger.warning(
"It seems that you are using an IP address "
"instead of FQDN as an argument to --server. The "
"installation may fail.")
break
print()
if not options.unattended and not user_input(
"Continue to configure the system with these values?", False):
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
def create_ipa_nssdb(db=None):
if db is None:
db = certdb.NSSDatabase(paths.IPA_NSSDB_DIR)
db.create_db(mode=0o755, backup=True)
os.chmod(db.pwd_file, 0o600)
def update_ipa_nssdb():
ipa_db = certdb.NSSDatabase(paths.IPA_NSSDB_DIR)
sys_db = certdb.NSSDatabase(paths.NSS_DB_DIR)
if not ipa_db.exists():
create_ipa_nssdb(ipa_db)
if ipa_db.dbtype == 'dbm':
ipa_db.convert_db(rename_old=False)
for nickname, trust_flags in (
('IPA CA', certdb.IPA_CA_TRUST_FLAGS),
('External CA cert', certdb.EXTERNAL_CA_TRUST_FLAGS)):
try:
cert = sys_db.get_cert(nickname)
except RuntimeError:
continue
try:
ipa_db.add_cert(cert, nickname, trust_flags)
except ipautil.CalledProcessError as e:
raise RuntimeError("Failed to add %s to %s: %s" %
(nickname, ipa_db.secdir, e))
# Remove IPA certs from /etc/pki/nssdb
for nickname, trust_flags in ipa_db.list_certs():
while sys_db.has_nickname(nickname):
try:
sys_db.delete_cert(nickname)
except ipautil.CalledProcessError as e:
raise RuntimeError("Failed to remove %s from %s: %s" %
(nickname, sys_db.secdir, e))
def sync_time(ntp_servers, ntp_pool, fstore, statestore):
"""
Will disable any other time synchronization service and configure chrony
with given ntp(chrony) server and/or pool using Augeas.
If there is no option --ntp-server set IPADiscovery will try to find ntp
server in DNS records.
"""
# We assume that NTP servers are discoverable through SRV records in DNS.
# disable other time&date services first
timeconf.force_chrony(statestore)
if not ntp_servers and not ntp_pool:
# autodiscovery happens in case that NTP configuration isn't explicitly
# disabled and user did not provide any NTP server addresses or
# NTP pool address to the installer interactively or as an cli argument
ds = discovery.IPADiscovery()
ntp_servers = ds.ipadns_search_srv(
cli_domain, '_ntp._udp', None, break_on_first=False
)
if ntp_servers:
for server in ntp_servers:
# when autodiscovery found server records
logger.debug("Found DNS record for NTP server: \t%s", server)
logger.info('Synchronizing time')
configured = False
if ntp_servers or ntp_pool:
configured = timeconf.configure_chrony(ntp_servers, ntp_pool,
fstore, statestore)
else:
logger.warning("No SRV records of NTP servers found and no NTP server "
"or pool address was provided.")
if not configured:
print("Using default chrony configuration.")
return timeconf.sync_chrony()
def restore_time_sync(statestore, fstore):
if statestore.has_state('chrony'):
chrony_enabled = statestore.restore_state('chrony', 'enabled')
restored = False
try:
# Restore might fail due to missing file(s) in backup.
# One example is if the client was updated from a previous version
# not configured with chrony. In such a cast it is OK to fail.
restored = fstore.restore_file(paths.CHRONY_CONF)
except ValueError: # this will not handle possivble IOError
logger.debug("Configuration file %s was not restored.",
paths.CHRONY_CONF)
if not chrony_enabled:
services.knownservices.chronyd.stop()
services.knownservices.chronyd.disable()
elif restored:
services.knownservices.chronyd.restart()
try:
timeconf.restore_forced_timeservices(statestore)
except CalledProcessError as e:
logger.error('Failed to restore time synchronization service: %s', e)
def configure_selinux_for_client(statestore):
def backup_state(key, value):
statestore.backup_state('selinux', key, value)
try:
tasks.set_selinux_booleans(constants.SELINUX_BOOLEAN_SSSD,
backup_state)
except SetseboolError as e:
for c in constants.SELINUX_BOOLEAN_SSSD:
if c in e.failed:
logger.warning(
"SELinux does not support SSSD boolean %s, ignoring", c)
def install(options):
try:
_install(options, dict())
except ScriptError as e:
if e.rval == CLIENT_INSTALL_ERROR:
if options.force:
logger.warning(
"Installation failed. Force set so not rolling back "
"changes.")
elif options.on_master:
logger.warning(
"Installation failed. As this is IPA server, changes will "
"not be rolled back.")
else:
logger.error("Installation failed. Rolling back changes.")
options.unattended = True
try:
uninstall(options)
except Exception as ex:
logger.debug("%s", traceback.format_exc())
logger.error("%s", ex)
raise
finally:
try:
os.remove(CCACHE_FILE)
except Exception:
pass
@cleanup
def _install(options, tdict):
env = {'PATH': SECURE_PATH}
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
statestore = sysrestore.StateFile(paths.IPA_CLIENT_SYSRESTORE)
statestore.backup_state('installation', 'complete', False)
krb_name = tdict['krb_name']
ccache_dir = tdict['ccache_dir']
if not options.on_master:
# Try removing old principals from the keytab
purge_host_keytab(cli_realm)
if options.hostname and not options.on_master:
# skip this step when run by ipa-server-install as it always configures
# hostname
tasks.backup_hostname(fstore, statestore)
tasks.set_hostname(options.hostname)
if options.conf_ntp:
# Attempt to configure and sync time with NTP server (chrony).
sync_time(options.ntp_servers, options.ntp_pool, fstore, statestore)
elif options.on_master:
# If we're on master skipping the time sync here because it was done
# in ipa-server-install
logger.debug("Skipping attempt to configure and synchronize time with"
" chrony server as it has been already done on master.")
else:
logger.info("Skipping chrony configuration")
if not options.unattended:
if (options.principal is None and options.password is None and
options.prompt_password is False and options.keytab is None
and options.pkinit_identity is None):
options.principal = user_input("User authorized to enroll "
"computers", allow_empty=False)
logger.debug(
"will use principal provided as option: %s", options.principal)
host_principal = 'host/%s@%s' % (hostname, cli_realm)
if not options.on_master:
nolog = tuple()
configure_krb5_conf(
cli_realm=cli_realm,
cli_domain=cli_domain,
cli_server=cli_server,
cli_kdc=cli_kdc,
dnsok=False,
filename=krb_name,
client_domain=client_domain,
client_hostname=hostname,
configure_sssd=options.sssd,
force=options.force)
env['KRB5_CONFIG'] = krb_name
ccache_name = os.path.join(ccache_dir, 'ccache')
join_args = [
paths.SBIN_IPA_JOIN,
"-s", cli_server[0],
"-b", str(realm_to_suffix(cli_realm)),
"-h", hostname,
"-k", paths.KRB5_KEYTAB
]
if options.debug:
join_args.append("-d")
env['XMLRPC_TRACE_CURL'] = 'yes'
if options.force_join:
join_args.append("-f")
if options.principal is not None:
stdin = None
principal = options.principal
if principal.find('@') == -1:
principal = '%s@%s' % (principal, cli_realm)
if options.password is not None:
stdin = options.password
else:
if not options.unattended:
try:
stdin = getpass.getpass(
"Password for %s: " % principal)
except EOFError:
stdin = None
if not stdin:
raise ScriptError(
"Password must be provided for {}.".format(
principal),
rval=CLIENT_INSTALL_ERROR)
else:
if sys.stdin.isatty():
logger.error(
"Password must be provided in "
"non-interactive mode.")
logger.info(
"This can be done via "
"echo password | ipa-client-install ... "
"or with the -w option.")
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
else:
stdin = sys.stdin.readline()
try:
kinit_password(principal, stdin, ccache_name,
config=krb_name)
except RuntimeError as e:
print_port_conf_info()
raise ScriptError(
"Kerberos authentication failed: {}".format(e),
rval=CLIENT_INSTALL_ERROR)
elif options.keytab:
join_args.append("-f")
if os.path.exists(options.keytab):
try:
kinit_keytab(host_principal,
options.keytab,
ccache_name,
config=krb_name,
attempts=options.kinit_attempts)
except gssapi.exceptions.GSSError as e:
print_port_conf_info()
raise ScriptError(
"Kerberos authentication failed: {}".format(e),
rval=CLIENT_INSTALL_ERROR)
else:
raise ScriptError(
"Keytab file could not be found: {}".format(
options.keytab),
rval=CLIENT_INSTALL_ERROR)
elif options.pkinit_identity:
join_args.append("-f")
with open(paths.CA_BUNDLE_PEM, "w"):
# HACK: kinit fails when "pkinit_pool" file is missing.
# Create an empty file and remove it after PKINIT.
pass
# if no principal is set, use host principal
if options.principal is None:
pkinit_principal = host_principal
else:
pkinit_principal = options.principal
try:
kinit_pkinit(
pkinit_principal,
options.pkinit_identity,
ccache_name=ccache_name,
config=krb_name,
pkinit_anchors=options.pkinit_anchors
)
except CalledProcessError as e:
print_port_conf_info()
raise ScriptError(
f"Kerberos PKINIT authentication failed: {e}",
rval=CLIENT_INSTALL_ERROR
)
finally:
remove_file(paths.CA_BUNDLE_PEM)
elif options.password:
nolog = (options.password,)
join_args.append("-w")
join_args.append(options.password)
elif options.prompt_password:
if options.unattended:
raise ScriptError(
"Password must be provided in non-interactive mode",
rval=CLIENT_INSTALL_ERROR)
try:
password = getpass.getpass("Password: ")
except EOFError:
password = None
if not password:
raise ScriptError(
"Password must be provided.",
rval=CLIENT_INSTALL_ERROR)
join_args.append("-w")
join_args.append(password)
nolog = (password,)
env['KRB5CCNAME'] = os.environ['KRB5CCNAME'] = ccache_name
# Get the CA certificate
try:
os.environ['KRB5_CONFIG'] = env['KRB5_CONFIG']
get_ca_certs(fstore, options, cli_server[0], cli_basedn,
cli_realm)
except errors.FileError as e:
logger.error('%s', e)
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
except Exception as e:
logger.error("Cannot obtain CA certificate\n%s", e)
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
# Now join the domain
result = run(
join_args, raiseonerr=False, env=env, nolog=nolog,
capture_error=True)
stderr = result.error_output
if result.returncode != 0:
logger.error("Joining realm failed: %s", stderr)
if not options.force:
if result.returncode == 13:
logger.info(
"Use --force-join option to override the host "
"entry on the server and force client enrollment.")
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
logger.info(
"Use ipa-getkeytab to obtain a host "
"principal for this server.")
else:
logger.info("Enrolled in IPA realm %s", cli_realm)
if options.principal is not None:
run([paths.KDESTROY], raiseonerr=False, env=env)
# Obtain the TGT. We do it with the temporary krb5.conf, so that
# only the KDC we're installing under is contacted.
# Other KDCs might not have replicated the principal yet.
# Once we have the TGT, it's usable on any server.
try:
kinit_keytab(host_principal, paths.KRB5_KEYTAB, CCACHE_FILE,
config=krb_name,
attempts=options.kinit_attempts)
env['KRB5CCNAME'] = os.environ['KRB5CCNAME'] = CCACHE_FILE
except gssapi.exceptions.GSSError as e:
print_port_conf_info()
logger.error("Failed to obtain host TGT: %s", e)
# failure to get ticket makes it impossible to login and bind
# from sssd to LDAP, abort installation and rollback changes
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
# Configure ipa.conf
if not options.on_master:
configure_ipa_conf(fstore, cli_basedn, cli_realm, cli_domain,
cli_server, hostname)
logger.info("Created /etc/ipa/default.conf")
with certdb.NSSDatabase() as tmp_db:
api.bootstrap(context='cli_installer',
confdir=paths.ETC_IPA,
debug=options.debug,
delegate=False,
nss_dir=tmp_db.secdir)
if 'config_loaded' not in api.env:
raise ScriptError(
"Failed to initialize IPA API.",
rval=CLIENT_INSTALL_ERROR)
# Always back up sssd.conf. It gets updated by authconfig --enablekrb5.
fstore.backup_file(paths.SSSD_CONF)
if options.sssd:
if configure_sssd_conf(fstore, cli_realm, cli_domain, cli_server,
options, client_domain, hostname):
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
logger.info("Configured /etc/sssd/sssd.conf")
if options.on_master:
# If on master assume kerberos is already configured properly.
# Get the host TGT.
try:
kinit_keytab(host_principal, paths.KRB5_KEYTAB, CCACHE_FILE,
attempts=options.kinit_attempts)
os.environ['KRB5CCNAME'] = CCACHE_FILE
except gssapi.exceptions.GSSError as e:
logger.error("Failed to obtain host TGT: %s", e)
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
# Clear out any current session keyring information
try:
delete_persistent_client_session_data(host_principal)
except ValueError:
pass
# Add CA certs to a temporary NSS database
ca_certs = x509.load_certificate_list_from_file(paths.IPA_CA_CRT)
try:
tmp_db.create_db()
for i, cert in enumerate(ca_certs):
tmp_db.add_cert(cert,
'CA certificate %d' % (i + 1),
certdb.EXTERNAL_CA_TRUST_FLAGS)
except CalledProcessError:
raise ScriptError(
"Failed to add CA to temporary NSS database.",
rval=CLIENT_INSTALL_ERROR)
api.finalize()
# Now, let's try to connect to the server's RPC interface
connected = False
try:
api.Backend.rpcclient.connect()
connected = True
logger.debug("Try RPC connection")
api.Backend.rpcclient.forward('ping')
except errors.KerberosError as e:
if connected:
api.Backend.rpcclient.disconnect()
logger.info(
"Cannot connect to the server due to Kerberos error: %s. "
"Trying with delegate=True", e)
try:
api.Backend.rpcclient.connect(delegate=True)
logger.debug("Try RPC connection")
api.Backend.rpcclient.forward('ping')
logger.info("Connection with delegate=True successful")
# The remote server is not capable of Kerberos S4U2Proxy
# delegation. This features is implemented in IPA server
# version 2.2 and higher
logger.warning(
"Target IPA server has a lower version than the enrolled "
"client")
logger.warning(
"Some capabilities including the ipa command capability "
"may not be available")
except errors.PublicError as e2:
logger.warning(
"Second connect with delegate=True also failed: %s", e2)
raise ScriptError(
"Cannot connect to the IPA server RPC interface: %s" % e2,
rval=CLIENT_INSTALL_ERROR)
except errors.PublicError as e:
raise ScriptError(
"Cannot connect to the server due to generic error: %s" % e,
rval=CLIENT_INSTALL_ERROR)
# Use the RPC directly so older servers are supported
try:
result = api.Backend.rpcclient.forward(
'ca_is_enabled',
version=u'2.107',
)
ca_enabled = result['result']
except (errors.CommandError, errors.NetworkError):
result = api.Backend.rpcclient.forward(
'env',
server=True,
version=u'2.0',
)
ca_enabled = result['result']['enable_ra']
if not ca_enabled:
disable_ra()
try:
result = api.Backend.rpcclient.forward(
'config_show',
raw=True, # so that servroles are not queried
version=u'2.0'
)
except Exception as e:
logger.debug("config_show failed %s", e, exc_info=True)
raise ScriptError(
"Failed to retrieve CA certificate subject base: {}".format(e),
rval=CLIENT_INSTALL_ERROR)
else:
subject_base = DN(result['result']['ipacertificatesubjectbase'][0])
# Create IPA NSS database
try:
create_ipa_nssdb()
except ipautil.CalledProcessError as e:
raise ScriptError(
"Failed to create IPA NSS database: %s" % e,
rval=CLIENT_INSTALL_ERROR)
# Get CA certificates from the certificate store
try:
ca_certs = get_certs_from_ldap(cli_server[0], cli_basedn, cli_realm,
ca_enabled)
except errors.NoCertificateError:
if ca_enabled:
ca_subject = DN(('CN', 'Certificate Authority'), subject_base)
else:
ca_subject = None
ca_certs = certstore.make_compat_ca_certs(ca_certs, cli_realm,
ca_subject)
ca_certs_trust = [(c, n, certstore.key_policy_to_trust_flags(t, True, u))
for (c, n, t, u, s) in ca_certs]
x509.write_certificate_list(
[c for c, n, t, u, s in ca_certs if t is not False],
paths.KDC_CA_BUNDLE_PEM,
mode=0o644
)
x509.write_certificate_list(
[c for c, n, t, u, s in ca_certs if t is not False],
paths.CA_BUNDLE_PEM,
mode=0o644
)
# Add the CA certificates to the IPA NSS database
logger.debug("Adding CA certificates to the IPA NSS database.")
ipa_db = certdb.NSSDatabase(paths.IPA_NSSDB_DIR)
for cert, nickname, trust_flags in ca_certs_trust:
try:
ipa_db.add_cert(cert, nickname, trust_flags)
except CalledProcessError as e:
raise ScriptError(
"Failed to add %s to the IPA NSS database." % nickname,
rval=CLIENT_INSTALL_ERROR)
# Add the CA certificates to the platform-dependant systemwide CA store
tasks.insert_ca_certs_into_systemwide_ca_store(ca_certs)
if not options.on_master:
client_dns(cli_server[0], hostname, options, statestore)
update_ssh_keys(hostname, paths.SSH_CONFIG_DIR, options, cli_server[0])
try:
os.remove(CCACHE_FILE)
except Exception:
pass
# Name Server Caching Daemon. Disable for SSSD, use otherwise
# (if installed)
nscd = services.knownservices.nscd
if nscd.is_installed():
save_state(nscd, statestore)
nscd_service_action = None
try:
if options.sssd:
nscd_service_action = 'stop'
nscd.stop()
else:
nscd_service_action = 'restart'
nscd.restart()
except Exception:
logger.warning(
"Failed to %s the %s daemon",
nscd_service_action, nscd.service_name)
if not options.sssd:
logger.warning(
"Caching of users/groups will not be available")
try:
if options.sssd:
nscd.disable()
else:
nscd.enable()
except Exception:
if not options.sssd:
logger.warning(
"Failed to configure automatic startup of the %s daemon",
nscd.service_name)
logger.info(
"Caching of users/groups will not be "
"available after reboot")
else:
logger.warning(
"Failed to disable %s daemon. Disable it manually.",
nscd.service_name)
else:
# this is optional service, just log
if not options.sssd:
logger.info(
"%s daemon is not installed, skip configuration",
nscd.service_name)
nslcd = services.knownservices.nslcd
if nslcd.is_installed():
save_state(nslcd, statestore)
retcode, conf = (0, None)
if not options.no_ac:
# Modify nsswitch/pam stack
tasks.modify_nsswitch_pam_stack(
sssd=options.sssd,
mkhomedir=options.mkhomedir,
statestore=statestore,
sudo=options.conf_sudo,
subid=options.subid
)
# if mkhomedir, make sure oddjobd is enabled and started
if options.mkhomedir:
oddjobd = services.service('oddjobd', api)
running = oddjobd.is_running()
enabled = oddjobd.is_enabled()
statestore.backup_state('oddjobd', 'running', running)
statestore.backup_state('oddjobd', 'enabled', enabled)
try:
if not enabled:
oddjobd.enable()
if not running:
oddjobd.start()
except Exception as e:
logger.critical("Unable to start oddjobd: %s", str(e))
logger.info("%s enabled", "SSSD" if options.sssd else "LDAP")
if options.sssd:
if selinux_works:
configure_selinux_for_client(statestore)
sssd = services.service('sssd', api)
try:
sssd.restart()
except CalledProcessError:
logger.warning("SSSD service restart was unsuccessful.")
try:
sssd.enable()
except CalledProcessError as e:
logger.warning(
"Failed to enable automatic startup of the SSSD daemon: "
"%s", e)
if not options.sssd:
tasks.modify_pam_to_use_krb5(statestore)
logger.info("Kerberos 5 enabled")
# Update non-SSSD LDAP configuration after authconfig calls as it would
# change its configuration otherways
if not options.sssd:
for configurer in [configure_ldap_conf, configure_nslcd_conf]:
(retcode, conf, filenames) = configurer(
fstore, cli_basedn, cli_realm,
cli_domain, cli_server, dnsok,
options, nosssd_files[configurer.__name__])
if retcode:
raise ScriptError(rval=CLIENT_INSTALL_ERROR)
if conf:
logger.info(
"%s configured using configuration file(s) %s",
conf, filenames)
if configure_openldap_conf(fstore, cli_basedn, cli_server):
logger.info("Configured /etc/openldap/ldap.conf")
else:
logger.info("Failed to configure /etc/openldap/ldap.conf")
# Check that nss is working properly
if not options.on_master:
user = options.principal
if user is None:
user = "admin@%s" % cli_domain
logger.info(
"Principal is not set when enrolling with OTP "
"or PKINIT; using principal '%s' for 'getent passwd'.",
user
)
elif '@' not in user:
user = "%s@%s" % (user, cli_domain)
n = 0
found = False
# Loop for up to 10 seconds to see if nss is working properly.
# It can sometimes take a few seconds to connect to the remote
# provider.
# Particulary, SSSD might take longer than 6-8 seconds.
while n < 10 and not found:
try:
ipautil.run([paths.GETENT, "passwd", user])
found = True
except Exception as e:
time.sleep(1)
n = n + 1
if not found:
logger.error("Unable to find '%s' user with 'getent "
"passwd %s'!", user.split("@")[0], user)
if conf:
logger.info("Recognized configuration: %s", conf)
else:
logger.error(
"Unable to reliably detect "
"configuration. Check NSS setup manually.")
try:
hardcode_ldap_server(cli_server)
except Exception as e:
logger.error(
"Adding hardcoded server name to "
"/etc/ldap.conf failed: %s", str(e))
if options.conf_ssh:
configure_ssh_config(fstore, options)
if options.conf_sshd:
configure_sshd_config(fstore, options)
if options.location:
configure_automount(options, statestore)
# Reload the state as automount install may have modified it
fstore._load()
statestore._load()
if options.configure_firefox:
configure_firefox(options, statestore, cli_domain)
if not options.no_nisdomain:
configure_nisdomain(
options=options, domain=cli_domain, statestore=statestore)
# Configure the final krb5.conf
if not options.on_master:
fstore.backup_file(paths.KRB5_CONF)
configure_krb5_conf(
cli_realm=cli_realm,
cli_domain=cli_domain,
cli_server=cli_server,
cli_kdc=cli_kdc,
dnsok=dnsok,
filename=paths.KRB5_CONF,
client_domain=client_domain,
client_hostname=hostname,
configure_sssd=options.sssd,
force=options.force)
logger.info("Configured /etc/krb5.conf for IPA realm %s", cli_realm)
# Configure certmonger after krb5.conf is created and last
# to give higher chance that the new client is replicated.
configure_certmonger(fstore, subject_base, cli_realm, hostname,
options, ca_enabled)
statestore.delete_state('installation', 'complete')
statestore.backup_state('installation', 'complete', True)
logger.info('Client configuration complete.')
def uninstall_check(options):
global selinux_works
if not is_ipa_client_configured():
if options.on_master:
rval = SUCCESS
else:
rval = CLIENT_NOT_CONFIGURED
raise ScriptError(
"IPA client is not configured on this system.",
rval=rval)
if is_ipa_configured() and not options.on_master:
logger.error(
"IPA client is configured as a part of IPA server on this system.")
logger.info("Refer to ipa-server-install for uninstallation.")
raise ScriptError(rval=CLIENT_NOT_CONFIGURED)
selinux_works = tasks.check_selinux_status()
def uninstall(options):
env = {'PATH': SECURE_PATH}
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
statestore = sysrestore.StateFile(paths.IPA_CLIENT_SYSRESTORE)
statestore.backup_state('installation', 'automount', True)
try:
run([paths.IPA_CLIENT_AUTOMOUNT, "--uninstall", "--debug"])
except CalledProcessError as e:
if e.returncode != CLIENT_NOT_CONFIGURED:
logger.error(
"Unconfigured automount client failed: %s", str(e))
finally:
statestore.delete_state('installation', 'automount')
# Reload the state as automount unconfigure may have modified it
fstore._load()
statestore._load()
hostname = None
ipa_domain = None
was_sssd_configured = False
try:
sssdconfig = SSSDConfig.SSSDConfig()
sssdconfig.import_config()
domains = sssdconfig.list_active_domains()
all_domains = sssdconfig.list_domains()
# we consider all the domains, because handling sssd.conf
# during uninstall is dependant on was_sssd_configured flag
# so the user does not lose info about inactive domains
if len(all_domains) > 1:
# There was more than IPA domain configured
was_sssd_configured = True
for name in domains:
domain = sssdconfig.get_domain(name)
try:
provider = domain.get_option('id_provider')
except SSSDConfig.NoOptionError:
continue
if provider == "ipa":
try:
hostname = domain.get_option('ipa_hostname')
except SSSDConfig.NoOptionError:
continue
try:
ipa_domain = domain.get_option('ipa_domain')
except SSSDConfig.NoOptionError:
pass
except Exception:
# We were unable to read existing SSSD config. This might mean few
# things:
# - sssd wasn't installed
# - sssd was removed after install and before uninstall
# - there are no active domains
# in both cases we cannot continue with SSSD
all_domains = []
if hostname is None:
hostname = FQDN
ipa_db = certdb.NSSDatabase(paths.IPA_NSSDB_DIR)
sys_db = certdb.NSSDatabase(paths.NSS_DB_DIR)
cmonger = services.knownservices.certmonger
if ipa_db.has_nickname('Local IPA host'):
try:
certmonger.stop_tracking(paths.IPA_NSSDB_DIR,
nickname='Local IPA host')
except RuntimeError as e:
logger.error("%s failed to stop tracking certificate: %s",
cmonger.service_name, e)
client_nss_nickname = 'IPA Machine Certificate - %s' % hostname
if sys_db.has_nickname(client_nss_nickname):
try:
certmonger.stop_tracking(paths.NSS_DB_DIR,
nickname=client_nss_nickname)
except RuntimeError as e:
logger.error("%s failed to stop tracking certificate: %s",
cmonger.service_name, e)
for filename in certdb.NSS_FILES:
remove_file(os.path.join(ipa_db.secdir, filename))
# Remove any special principal names we added to the IPA CA helper
certmonger.remove_principal_from_cas()
try:
cmonger.stop()
except Exception as e:
log_service_error(cmonger.service_name, 'stop', e)
try:
cmonger.disable()
except Exception as e:
logger.error(
"Failed to disable automatic startup of the %s service: %s",
cmonger.service_name, str(e))
if not options.on_master and os.path.exists(paths.IPA_DEFAULT_CONF):
logger.info("Unenrolling client from IPA server")
join_args = [
paths.SBIN_IPA_JOIN,
"--unenroll",
"-h", hostname,
"-k", paths.KRB5_KEYTAB
]
if options.debug:
join_args.append("-d")
env['XMLRPC_TRACE_CURL'] = 'yes'
result = run(join_args, raiseonerr=False, env=env)
if result.returncode != 0:
logger.error("Unenrolling host failed: %s", result.error_log)
if os.path.exists(paths.IPA_DEFAULT_CONF) and os.path.exists(
paths.KRB5_KEYTAB
):
logger.info(
"Removing Kerberos service principals from /etc/krb5.keytab")
try:
parser = RawConfigParser()
parser.read(paths.IPA_DEFAULT_CONF)
realm = parser.get('global', 'realm')
run([paths.IPA_RMKEYTAB, "-k", paths.KRB5_KEYTAB, "-r", realm])
except CalledProcessError as err:
if err.returncode != 5:
# 5 means Principal name or realm not found in keytab
# and can be ignored
logger.error(
"Failed to remove Kerberos service principals: %s",
str(err))
except Exception as e:
logger.error(
"Failed to remove Kerberos service principals: %s", str(e))
# Restore oddjobd to its original state
oddjobd = services.service('oddjobd', api)
if not statestore.restore_state('oddjobd', 'running'):
try:
oddjobd.stop()
except Exception:
pass
if not statestore.restore_state('oddjobd', 'enabled'):
try:
oddjobd.disable()
except Exception:
pass
# Restore unbound to its original status
if statestore.restore_state("dns_over_tls", "enabled"):
unbound = services.knownservices['unbound']
if not statestore.restore_state('unbound', 'running'):
unbound.stop()
if not statestore.restore_state('unbound', 'enabled'):
unbound.disable()
# restore unbound config files that were removed during IPA install
remove_file(paths.UNBOUND_CONF)
for filename, fileinfo in fstore.files.items():
if paths.UNBOUND_CONFIG_DIR in fileinfo:
fstore.restore_file(
os.path.join(paths.UNBOUND_CONFIG_DIR, filename))
logger.info("Disabling client Kerberos and LDAP configurations")
was_sssd_installed = False
was_sshd_configured = False
if fstore.has_files():
was_sssd_installed = fstore.has_file(paths.SSSD_CONF)
was_sshd_configured = fstore.has_file(paths.SSHD_CONFIG)
try:
tasks.restore_pre_ipa_client_configuration(fstore,
statestore,
was_sssd_installed,
was_sssd_configured)
except Exception as e:
raise ScriptError(
"Failed to remove krb5/LDAP configuration: {}".format(e),
rval=CLIENT_INSTALL_ERROR)
# Clean up the SSSD cache before SSSD service is stopped or restarted
remove_file(paths.SSSD_MC_GROUP)
remove_file(paths.SSSD_MC_PASSWD)
remove_file(paths.SSSD_MC_INITGROUPS)
remove_file(paths.SSSD_MC_SID)
for root, _dirs, files in os.walk(paths.SSSD_PIPES):
for file in files:
remove_file(os.path.join(root, file))
for domain in all_domains:
name = f"domain_realm_{domain.replace('.', '_')}"
filename = os.path.join(paths.SSSD_PUBCONF_KRB5_INCLUDE_D_DIR, name)
if os.path.exists(filename):
remove_file(filename)
if was_sssd_installed:
try:
run([paths.SSSCTL, "cache-remove", "-o", "--stop", "--start"])
except Exception:
logger.info(
"An error occurred while removing SSSD's cache."
"Please remove the cache manually by executing "
"sssctl cache-remove -o.")
if ipa_domain:
sssd_domain_ldb = "cache_" + ipa_domain + ".ldb"
sssd_ldb_file = os.path.join(paths.SSSD_DB, sssd_domain_ldb)
remove_file(sssd_ldb_file)
sssd_domain_ccache = "ccache_" + ipa_domain.upper()
sssd_ccache_file = os.path.join(paths.SSSD_DB, sssd_domain_ccache)
remove_file(sssd_ccache_file)
remove_file(paths.SSSD_LDB)
remove_file(paths.SSSD_CONFIG_LDB)
# Stop sssd-kcm.service before removing the KCM ccaches database
# it is socket-activated and will be restarted whenever needed
try:
services.service('sssd-kcm', api).stop()
except Exception as e:
logger.warning("Failed to stop sssd-kcm: %s", e)
remove_file(paths.SSSD_SECRETS)
sssd_timestamps = "timestamps_" + ipa_domain + ".ldb"
sssd_timestamps_file = os.path.join(paths.SSSD_DB, sssd_timestamps)
remove_file(sssd_timestamps_file)
# Next if-elif-elif construction deals with sssd.conf file.
# Old pre-IPA domains are preserved due merging the old sssd.conf
# during the installation of ipa-client but any new domains are
# only present in sssd.conf now, so we don't want to delete them
# by rewriting sssd.conf file. IPA domain is removed gracefully.
# SSSD was installed before our installation and other non-IPA domains
# found, restore backed up sssd.conf to sssd.conf.bkp and remove IPA
# domain from the current sssd.conf
if was_sssd_installed and was_sssd_configured:
logger.info(
"The original configuration of SSSD included other domains than "
"the IPA-based one.")
delete_ipa_domain()
restored = False
try:
restored = fstore.restore_file(
paths.SSSD_CONF, paths.SSSD_CONF_BKP)
except OSError:
logger.debug(
"Error while restoring pre-IPA /etc/sssd/sssd.conf.")
if restored:
logger.info(
"Original pre-IPA SSSD configuration file was "
"restored to /etc/sssd/sssd.conf.bkp.")
logger.info(
"IPA domain removed from current one, restarting SSSD service")
sssd = services.service('sssd', api)
try:
sssd.restart()
except CalledProcessError:
logger.warning("SSSD service restart was unsuccessful.")
# SSSD was not installed before our installation, but other domains found,
# delete IPA domain, but leave other domains intact
elif not was_sssd_installed and was_sssd_configured:
delete_ipa_domain()
logger.info(
"Other domains than IPA domain found, IPA domain was removed "
"from /etc/sssd/sssd.conf.")
sssd = services.service('sssd', api)
try:
sssd.restart()
except CalledProcessError:
logger.warning("SSSD service restart was unsuccessful.")
# SSSD was not installed before our installation, and no other domains
# than IPA are configured in sssd.conf - make sure config file is removed
elif not was_sssd_installed and not was_sssd_configured \
and os.path.exists(paths.SSSD_CONF):
try:
os.rename(paths.SSSD_CONF, paths.SSSD_CONF_DELETED)
except OSError:
logger.debug("Error while moving /etc/sssd/sssd.conf to %s",
paths.SSSD_CONF_DELETED)
logger.info(
"Redundant SSSD configuration file "
"/etc/sssd/sssd.conf was moved to /etc/sssd/sssd.conf.deleted")
sssd = services.service('sssd', api)
try:
sssd.stop()
except CalledProcessError:
logger.warning("SSSD service could not be stopped")
try:
sssd.disable()
except CalledProcessError as e:
logger.warning(
"Failed to disable automatic startup of the SSSD daemon: %s",
e)
if statestore.has_state('selinux'):
# Restore SELinux boolean states
boolean_states = {name: statestore.restore_state('selinux', name)
for name in constants.SELINUX_BOOLEAN_SSSD}
try:
tasks.set_selinux_booleans(boolean_states)
except SetseboolError as e:
logger.warning("Unable to reset SELinux variable: %s", str(e))
tasks.restore_hostname(fstore, statestore)
if fstore.has_files():
logger.info("Restoring client configuration files")
fstore.restore_all_files()
unconfigure_nisdomain(statestore)
nscd = services.knownservices.nscd
nslcd = services.knownservices.nslcd
for service in (nscd, nslcd):
if service.is_installed():
restore_state(service, statestore)
else:
# this is an optional service, just log
logger.info(
"%s daemon is not installed, skip configuration",
service.service_name
)
restore_time_sync(statestore, fstore)
if was_sshd_configured and services.knownservices.sshd.is_running():
remove_file(paths.SSHD_IPA_CONFIG)
remove_file(paths.SSH_IPA_CONFIG)
services.knownservices.sshd.restart()
# Remove the Firefox configuration
if statestore.has_state('firefox'):
logger.info("Removing Firefox configuration.")
preferences_fname = statestore.restore_state(
'firefox', 'preferences_fname')
if preferences_fname is not None:
if os.path.isfile(preferences_fname):
try:
os.remove(preferences_fname)
except Exception as e:
logger.warning(
"'%s' could not be removed: %s.",
preferences_fname, str(e))
logger.warning(
"Please remove file '%s' manually.", preferences_fname)
rv = SUCCESS
if fstore.has_files():
logger.error('Some files have not been restored, see %s',
paths.SYSRESTORE_INDEX)
statestore.delete_state('installation', 'complete')
has_state = False
for module in statestore.modules:
logger.error(
'Some installation state for %s has not been '
'restored, see /var/lib/ipa/sysrestore/sysrestore.state',
module)
has_state = True
rv = CLIENT_UNINSTALL_ERROR
if has_state:
logger.warning(
'Some installation state has not been restored.\n'
'This may cause re-installation to fail.\n'
'It should be safe to remove %s '
'but it may\n mean your system hasn\'t been restored '
'to its pre-installation state.',
os.path.join(paths.IPA_CLIENT_SYSRESTORE,
sysrestore.SYSRESTORE_STATEFILE)
)
# Remove the IPA configuration file
remove_file(paths.IPA_DEFAULT_CONF)
remove_file(paths.IPA_DEFAULT_CONF + '.ipabkp')
# Remove misc backups
remove_file(paths.OPENLDAP_LDAP_CONF + '.ipabkp')
remove_file(paths.NSSWITCH_CONF + '.ipabkp')
# Remove the CA cert from the systemwide certificate store
tasks.remove_ca_certs_from_systemwide_ca_store()
# Remove the CA cert
remove_file(paths.IPA_CA_CRT)
remove_file(paths.KDC_CA_BUNDLE_PEM)
remove_file(paths.CA_BUNDLE_PEM)
logger.info("Client uninstall complete.")
# The next block of code prompts for reboot, therefore all uninstall
# logic has to be done before
if not options.unattended:
logger.info(
"The original nsswitch.conf configuration has been restored.")
logger.info(
"You may need to restart services or reboot the machine.")
if not options.on_master:
if user_input("Do you want to reboot the machine?", False):
try:
run([paths.SBIN_REBOOT])
except Exception as e:
raise ScriptError(
"Reboot command failed to execute: {}".format(e),
rval=CLIENT_UNINSTALL_ERROR)
# IMPORTANT: Do not put any client uninstall logic after the block above
if rv:
raise ScriptError(rval=rv)
def init(installer):
root_logger = logging.getLogger()
for handler in root_logger.handlers:
if (isinstance(handler, logging.StreamHandler) and
handler.stream is sys.stderr):
installer.debug = handler.level == logging.DEBUG
break
else:
installer.debug = True
installer.unattended = not installer.interactive
if installer.domain_name:
installer.domain = normalize_hostname(installer.domain_name)
else:
installer.domain = None
installer.server = installer.servers
installer.realm = installer.realm_name
installer.primary = installer.fixed_primary
if installer.principal:
installer.password = installer.admin_password
else:
installer.password = installer.host_password
installer.hostname = installer.host_name
installer.conf_ntp = not installer.no_ntp
installer.trust_sshfp = installer.ssh_trust_dns
installer.conf_ssh = not installer.no_ssh
installer.conf_sshd = not installer.no_sshd
installer.conf_sudo = not installer.no_sudo
installer.create_sshfp = not installer.no_dns_sshfp
if installer.ca_cert_files:
installer.ca_cert_file = installer.ca_cert_files[-1]
else:
installer.ca_cert_file = None
installer.location = installer.automount_location
installer.dns_updates = installer.enable_dns_updates
installer.krb5_offline_passwords = not installer.no_krb5_offline_passwords
installer.sssd = not installer.no_sssd
@group
class ClientInstallInterface(hostname_.HostNameInstallInterface,
service.ServiceAdminInstallInterface,
sssd.SSSDInstallInterface):
"""
Interface of the client installer
Knobs defined here will be available in:
* ipa-client-install
* ipa-server-install
* ipa-replica-prepare
* ipa-replica-install
"""
description = "Client"
principal = extend_knob(
service.ServiceAdminInstallInterface.principal,
description="principal to use to join the IPA realm",
)
principal = enroll_only(principal)
host_password = knob(
str, None,
sensitive=True,
)
host_password = enroll_only(host_password)
keytab = knob(
str, None,
description="path to backed up keytab from previous enrollment",
cli_names=[None, '-k'],
)
keytab = enroll_only(keytab)
mkhomedir = knob(
None,
description="create home directories for users on their first login",
)
mkhomedir = enroll_only(mkhomedir)
force_join = knob(
None,
description="Force client enrollment even if already enrolled",
)
force_join = enroll_only(force_join)
ntp_servers = knob(
typing.List[str], None,
description="ntp server to use. This option can be used multiple "
"times",
cli_names='--ntp-server',
cli_metavar='NTP_SERVER',
)
ntp_servers = enroll_only(ntp_servers)
ntp_pool = knob(
str, None,
description="ntp server pool to use",
)
ntp_pool = enroll_only(ntp_pool)
no_ntp = knob(
None,
description="do not configure ntp",
cli_names=[None, '-N'],
)
no_ntp = enroll_only(no_ntp)
force_ntpd = knob(
None, False,
deprecated=True,
description="Stop and disable any time&date synchronization services "
"besides ntpd. This option has been deprecated",
)
force_ntpd = enroll_only(force_ntpd)
nisdomain = knob(
str, None,
description="NIS domain name",
)
nisdomain = enroll_only(nisdomain)
no_nisdomain = knob(
None,
description="do not configure NIS domain name",
)
no_nisdomain = enroll_only(no_nisdomain)
ssh_trust_dns = knob(
None,
description="configure OpenSSH client to trust DNS SSHFP records",
)
ssh_trust_dns = enroll_only(ssh_trust_dns)
no_ssh = knob(
None,
description="do not configure OpenSSH client",
)
no_ssh = enroll_only(no_ssh)
no_sshd = knob(
None,
description="do not configure OpenSSH server",
)
no_sshd = enroll_only(no_sshd)
no_sudo = knob(
None,
description="do not configure SSSD as data source for sudo",
)
no_sudo = enroll_only(no_sudo)
subid = knob(
None,
description="configure SSSD as data source for subid",
)
subid = enroll_only(subid)
no_dns_sshfp = knob(
None,
description="do not automatically create DNS SSHFP records",
)
no_dns_sshfp = enroll_only(no_dns_sshfp)
kinit_attempts = knob(
int, 5,
description="number of attempts to obtain host TGT (defaults to 5).",
)
kinit_attempts = enroll_only(kinit_attempts)
@kinit_attempts.validator
def kinit_attempts(self, value):
if value < 1:
raise ValueError("expects an integer greater than 0.")
dns_over_tls = knob(
None,
description="Configure DNS over TLS",
)
dns_over_tls = enroll_only(dns_over_tls)
no_dnssec_validation = knob(
None,
description="Disable DNSSEC validation for DNS over TLS",
)
no_dnssec_validation = enroll_only(no_dnssec_validation)
request_cert = knob(
None,
deprecated=True,
description="request certificate for the machine",
)
request_cert = prepare_only(request_cert)
def __init__(self, **kwargs):
super(ClientInstallInterface, self).__init__(**kwargs)
if self.servers and not self.domain_name:
raise RuntimeError(
"--server cannot be used without providing --domain")
if self.force_ntpd:
logger.warning(
"Option --force-ntpd has been deprecated and will be "
"removed in a future release."
)
if self.ntp_servers and self.no_ntp:
raise RuntimeError(
"--ntp-server cannot be used together with --no-ntp")
if self.ntp_pool and self.no_ntp:
raise RuntimeError(
"--ntp-pool cannot be used together with --no-ntp")
if self.request_cert:
logger.warning(
"Option --request-cert has been deprecated and will be "
"removed in a future release."
)
if self.no_nisdomain and self.nisdomain:
raise RuntimeError(
"--no-nisdomain cannot be used together with --nisdomain")
if self.ip_addresses:
if self.enable_dns_updates:
raise RuntimeError(
"--ip-address cannot be used together with"
" --enable-dns-updates")
if self.all_ip_addresses:
raise RuntimeError(
"--ip-address cannot be used together with"
"--all-ip-addresses")
@group
class PKINITInstallInterface(service.ServiceInstallInterface):
description = "PKINIT"
pkinit_identity = knob(
type=str,
default=None,
description=(
"PKINIT identity information (for example "
"FILE:/path/to/cert.pem,/path/to/key.pem)"
),
cli_metavar="IDENTITY",
)
@pkinit_identity.validator
def pkinit_identity(self, value):
# see pkinit_crypto_openssl.c:crypto_load_certs()
# ignore "ENV:" prefix
if not value.startswith(
("FILE:", "PKCS11:", "PKCS12:", "DIR:", "ENV:")
):
raise ValueError(
"identity must start with FILE:, PKCS11:, PKCS12:, DIR:, "
"or ENV:"
)
pkinit_anchors = knob(
type=typing.List[str],
default=None,
description=(
"PKINIT trust anchors, prefixed with FILE: for CA PEM bundle "
"file or DIR: for an OpenSSL hash dir. The option can be used "
"used multiple times."
),
cli_names="--pkinit-anchor",
cli_metavar="FILEDIR",
)
@pkinit_anchors.validator
def pkinit_anchors(self, value):
# see pkinit_crypto_openssl.c:crypto_load_cas_and_crls()
for part in value:
prefix, sep, path = part.partition(":")
if not sep or prefix not in {"FILE", "DIR", "ENV:"}:
raise ValueError(
"Invalid pkinit_anchor '{part}' is not prefixed with "
"FILE: or DIR:."
)
if prefix == "FILE" and not os.path.isfile(path):
raise ValueError(
f"pkinit anchor path '{path}' does not exist or is not "
"a file."
)
if prefix == "DIR" and not os.path.isdir(path):
raise ValueError(
f"pkinit anchor path '{path}' does not exist or is not "
"a file."
)
class ClientInstall(ClientInstallInterface,
PKINITInstallInterface,
automount.AutomountInstallInterface):
"""
Client installer
"""
dm_password = None
ca_cert_files = extend_knob(
ClientInstallInterface.ca_cert_files,
)
@ca_cert_files.validator
def ca_cert_files(self, value):
if not isinstance(value, list):
raise ValueError("Expected list, got {!r}".format(value))
# this is what init() does
value = value[-1]
if not os.path.exists(value):
raise ValueError("'%s' does not exist" % value)
if not os.path.isfile(value):
raise ValueError("'%s' is not a file" % value)
if not os.path.isabs(value):
raise ValueError("'%s' is not an absolute file path" % value)
try:
x509.load_certificate_from_file(value)
except Exception:
raise ValueError("'%s' is not a valid certificate file" % value)
@property
def prompt_password(self):
return self.interactive
no_ac = False
force = knob(
None,
description="force setting of LDAP/Kerberos conf",
cli_names=[None, '-f'],
)
on_master = False
configure_firefox = knob(
None,
description="configure Firefox to use IPA domain credentials",
)
firefox_dir = knob(
str, None,
description="specify directory where Firefox is installed (for "
"example: '/usr/lib/firefox')",
)
def __init__(self, **kwargs):
super(ClientInstall, self).__init__(**kwargs)
if self.firefox_dir and not self.configure_firefox:
raise RuntimeError(
"--firefox-dir cannot be used without --configure-firefox "
"option")
@step()
def main(self):
init(self)
install_check(self)
yield
install(self)
@main.uninstaller
def main(self):
init(self)
uninstall_check(self)
yield
uninstall(self)