mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-26 17:01:14 -06:00
e59ee6099f
Some incorrect errors are possible if a client installation
fails and a configuration rollback is required.
These include:
1. Unconfigured automount client failed: CalledProcessError(Command
['/usr/sbin/ipa-client-automount', '--uninstall', '--debug']
returned non-zero exit status 1: '')
Caused by check_client_configuration() not returning the correct
return value (2).
2. WARNING: Unable to revert to the pre-installation state ('authconfig'
tool has been deprecated in favor of 'authselect'). The default sssd
profile will be used instead.
The authconfig arguments would have been: authconfig --disableldap
--disablekrb5 --disablesssdauth --disablemkhomedir
If installation fails before SSSD is configured there is no state
to roll back to. Detect this condition.
3. An error occurred while removing SSSD's cache.Please remove the
cache manually by executing sssctl cache-remove -o.
Again, if SSSD is not configured yet then there is no cache to
remove. Also correct the missing space after the period.
https://pagure.io/freeipa/issue/7729
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
3770 lines
128 KiB
Python
3770 lines
128 KiB
Python
#
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# Copyright (C) 2016 FreeIPA Contributors see COPYING for license
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#
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"""
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IPA client install module
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Provides methods for installation, uninstallation of IPA client
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"""
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from __future__ import (
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print_function,
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absolute_import,
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)
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import logging
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import dns
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import getpass
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import gssapi
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import netifaces
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import os
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import re
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import SSSDConfig
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import shutil
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import socket
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import sys
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import tempfile
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import time
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import traceback
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from configparser import RawConfigParser
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from urllib.parse import urlparse, urlunparse
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from ipalib import api, errors, x509
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from ipalib.install import certmonger, certstore, service, sysrestore
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from ipalib.install import hostname as hostname_
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from ipalib.install.kinit import kinit_keytab, kinit_password
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from ipalib.install.service import enroll_only, prepare_only
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from ipalib.rpc import delete_persistent_client_session_data
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from ipalib.util import (
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normalize_hostname,
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no_matching_interface_for_ip_address_warning,
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verify_host_resolvable,
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)
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from ipaplatform import services
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from ipaplatform.paths import paths
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from ipaplatform.tasks import tasks
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from ipapython import certdb, kernel_keyring, ipaldap, ipautil
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from ipapython.admintool import ScriptError
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from ipapython.dn import DN
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from ipapython.install import typing
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from ipapython.install.core import group, knob, extend_knob
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from ipapython.install.common import step
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from ipapython.ipautil import (
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CalledProcessError,
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realm_to_suffix,
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run,
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user_input,
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)
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from ipapython.ssh import SSHPublicKey
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from ipapython import version
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from . import automount, ipadiscovery, timeconf, sssd
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from .ipachangeconf import IPAChangeConf
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NoneType = type(None)
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logger = logging.getLogger(__name__)
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SUCCESS = 0
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CLIENT_INSTALL_ERROR = 1
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CLIENT_NOT_CONFIGURED = 2
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CLIENT_ALREADY_CONFIGURED = 3
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CLIENT_UNINSTALL_ERROR = 4 # error after restoring files/state
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SECURE_PATH = (
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"/bin:/sbin:/usr/kerberos/bin:/usr/kerberos/sbin:/usr/bin:/usr/sbin"
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)
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# global variables
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hostname = None
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hostname_source = None
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nosssd_files = None
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dnsok = False
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cli_domain = None
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cli_server = None
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subject_base = None
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cli_realm = None
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cli_kdc = None
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client_domain = None
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cli_basedn = None
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# end of global variables
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def remove_file(filename):
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"""
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Deletes a file. If the file does not exist (OSError 2) does nothing.
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Otherwise logs an error message and instructs the user to remove the
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offending file manually
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:param filename: name of the file to be removed
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"""
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try:
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os.remove(filename)
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except OSError as e:
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if e.errno == 2:
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return
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logger.error("Failed to remove file %s: %s", filename, e)
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logger.error('Please remove %s manually, as it can cause '
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'subsequent installation to fail.', filename)
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def log_service_error(name, action, error):
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logger.error("%s failed to %s: %s", name, action, str(error))
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def get_cert_path(cert_path):
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"""
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If a CA certificate is passed in on the command line, use that.
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Else if a CA file exists in paths.IPA_CA_CRT then use that.
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Otherwise return None.
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"""
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if cert_path is not None:
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return cert_path
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if os.path.exists(paths.IPA_CA_CRT):
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return paths.IPA_CA_CRT
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return None
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def save_state(service, statestore):
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enabled = service.is_enabled()
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running = service.is_running()
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if enabled or running:
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statestore.backup_state(service.service_name, 'enabled', enabled)
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statestore.backup_state(service.service_name, 'running', running)
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def restore_state(service, statestore):
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enabled = statestore.restore_state(service.service_name, 'enabled')
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running = statestore.restore_state(service.service_name, 'running')
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if enabled:
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try:
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service.enable()
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except Exception:
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logger.warning(
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"Failed to configure automatic startup of the %s daemon",
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service.service_name
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)
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if running:
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try:
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service.start()
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except Exception:
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logger.warning(
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"Failed to restart the %s daemon",
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service.service_name
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)
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def nssldap_exists():
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"""Checks whether nss_ldap or nss-pam-ldapd is installed.
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If anyone of mandatory files was found returns True and list of all files
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found.
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"""
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files_to_check = [
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{
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'function': 'configure_ldap_conf',
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'mandatory': [
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paths.LDAP_CONF,
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paths.NSS_LDAP_CONF,
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paths.LIBNSS_LDAP_CONF],
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'optional':[paths.PAM_LDAP_CONF]
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},
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{
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'function': 'configure_nslcd_conf',
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'mandatory': [paths.NSLCD_CONF]
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}
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]
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files_found = {}
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retval = False
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for function in files_to_check:
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files_found[function['function']] = []
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for file_type in ['mandatory', 'optional']:
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try:
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for filename in function[file_type]:
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if os.path.isfile(filename):
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files_found[function['function']].append(filename)
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if file_type == 'mandatory':
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retval = True
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except KeyError:
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pass
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return (retval, files_found)
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def check_ldap_conf(conf=paths.OPENLDAP_LDAP_CONF,
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error_rval=CLIENT_INSTALL_ERROR):
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if not os.path.isfile(conf):
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return False
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pat = re.compile(r"^\s*(PORT|HOST).*")
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unsupported = set()
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with open(conf) as f:
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for line in f:
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mo = pat.match(line)
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if mo is not None:
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unsupported.add(mo.group(1))
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if unsupported:
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raise ScriptError(
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"'{}' contains deprecated and unsupported entries: {}".format(
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conf, ", ".join(sorted(unsupported))
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),
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rval=error_rval
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)
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else:
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return True
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def delete_ipa_domain():
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"""Helper function for uninstall.
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Deletes IPA domain from sssd.conf
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"""
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try:
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sssdconfig = SSSDConfig.SSSDConfig()
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sssdconfig.import_config()
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domains = sssdconfig.list_active_domains()
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ipa_domain_name = None
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for name in domains:
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domain = sssdconfig.get_domain(name)
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try:
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provider = domain.get_option('id_provider')
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if provider == "ipa":
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ipa_domain_name = name
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break
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except SSSDConfig.NoOptionError:
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continue
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if ipa_domain_name is not None:
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sssdconfig.delete_domain(ipa_domain_name)
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sssdconfig.write()
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else:
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logger.warning(
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"IPA domain could not be found in "
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"/etc/sssd/sssd.conf and therefore not deleted")
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except IOError:
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logger.warning(
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"IPA domain could not be deleted. "
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"No access to the /etc/sssd/sssd.conf file.")
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def is_ipa_client_installed(fstore, on_master=False):
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"""
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Consider IPA client not installed if nothing is backed up
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and default.conf file does not exist. If on_master is set to True,
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the existence of default.conf file is not taken into consideration,
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since it has been already created by ipa-server-install.
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"""
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installed = (
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fstore.has_files() or (
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not on_master and os.path.exists(paths.IPA_DEFAULT_CONF)
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)
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)
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return installed
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def configure_nsswitch_database(fstore, database, services, preserve=True,
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append=True, default_value=()):
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"""
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Edits the specified nsswitch.conf database (e.g. passwd, group, sudoers)
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to use the specified service(s).
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Arguments:
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fstore - FileStore to backup the nsswitch.conf
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database - database configuration that should be ammended,
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e.g. 'sudoers'
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service - list of services that should be added, e.g. ['sss']
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preserve - if True, the already configured services will be preserved
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The next arguments modify the behaviour if preserve=True:
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append - if True, the services will be appended, if False, prepended
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default_value - list of services that are considered as default (if
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the database is not mentioned in nsswitch.conf), e.g.
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['files']
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"""
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# Backup the original version of nsswitch.conf, we're going to edit it now
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if not fstore.has_file(paths.NSSWITCH_CONF):
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fstore.backup_file(paths.NSSWITCH_CONF)
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conf = IPAChangeConf("IPA Installer")
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conf.setOptionAssignment(':')
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if preserve:
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# Read the existing configuration
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with open(paths.NSSWITCH_CONF, 'r') as f:
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opts = conf.parse(f)
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raw_database_entry = conf.findOpts(opts, 'option', database)[1]
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# Detect the list of already configured services
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if not raw_database_entry:
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# If there is no database entry, database is not present in
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# the nsswitch.conf. Set the list of services to the
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# default list, if passed.
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configured_services = list(default_value)
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else:
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configured_services = raw_database_entry['value'].strip().split()
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# Make sure no service is added if already mentioned in the list
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added_services = [s for s in services
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if s not in configured_services]
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# Prepend / append the list of new services
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if append:
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new_value = ' ' + ' '.join(configured_services + added_services)
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else:
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new_value = ' ' + ' '.join(added_services + configured_services)
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else:
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# Preserve not set, let's rewrite existing configuration
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new_value = ' ' + ' '.join(services)
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# Set new services as sources for database
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opts = [
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conf.setOption(database, new_value),
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conf.emptyLine(),
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]
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conf.changeConf(paths.NSSWITCH_CONF, opts)
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logger.info("Configured %s in %s", database, paths.NSSWITCH_CONF)
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def configure_ipa_conf(
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fstore, cli_basedn, cli_realm, cli_domain, cli_server, hostname):
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ipaconf = IPAChangeConf("IPA Installer")
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ipaconf.setOptionAssignment(" = ")
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ipaconf.setSectionNameDelimiters(("[", "]"))
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opts = [
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{
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'name': 'comment',
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'type': 'comment',
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'value': 'File modified by ipa-client-install'
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},
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ipaconf.emptyLine(),
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]
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# [global]
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defopts = [
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ipaconf.setOption('basedn', cli_basedn),
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ipaconf.setOption('realm', cli_realm),
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ipaconf.setOption('domain', cli_domain),
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ipaconf.setOption('server', cli_server[0]),
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ipaconf.setOption('host', hostname),
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ipaconf.setOption('xmlrpc_uri',
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'https://{}/ipa/xml'.format(
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ipautil.format_netloc(cli_server[0]))),
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ipaconf.setOption('enable_ra', 'True')
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]
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opts.extend([
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ipaconf.setSection('global', defopts),
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ipaconf.emptyLine(),
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])
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target_fname = paths.IPA_DEFAULT_CONF
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fstore.backup_file(target_fname)
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ipaconf.newConf(target_fname, opts)
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# umask applies when creating a new file but we want 0o644 here
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os.chmod(target_fname, 0o644)
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def disable_ra():
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"""Set the enable_ra option in /etc/ipa/default.conf to False
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Note that api.env will retain the old value (it is readonly).
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"""
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parser = RawConfigParser()
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parser.read(paths.IPA_DEFAULT_CONF)
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parser.set('global', 'enable_ra', 'False')
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fp = open(paths.IPA_DEFAULT_CONF, 'w')
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parser.write(fp)
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fp.close()
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def configure_ldap_conf(
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fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options,
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files):
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ldapconf = IPAChangeConf("IPA Installer")
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ldapconf.setOptionAssignment(" ")
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opts = [
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{
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'name': 'comment',
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'type': 'comment',
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'value': 'File modified by ipa-client-install'
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},
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ldapconf.emptyLine(),
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ldapconf.setOption('ldap_version', '3'),
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ldapconf.setOption('base', cli_basedn),
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ldapconf.emptyLine(),
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ldapconf.setOption(
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'nss_base_passwd', '{dn}{suffix}'
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.format(dn=DN(('cn', 'users'), ('cn', 'accounts'), cli_basedn),
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suffix='?sub')),
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ldapconf.setOption(
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'nss_base_group', '{dn}{suffix}'
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.format(dn=DN(('cn', 'groups'), ('cn', 'accounts'), cli_basedn),
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suffix='?sub')),
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ldapconf.setOption('nss_schema', 'rfc2307bis'),
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ldapconf.setOption('nss_map_attribute', 'uniqueMember member'),
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ldapconf.setOption('nss_initgroups_ignoreusers', 'root,dirsrv'),
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ldapconf.emptyLine(),
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ldapconf.setOption('nss_reconnect_maxsleeptime', '8'),
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ldapconf.setOption('nss_reconnect_sleeptime', '1'),
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ldapconf.setOption('bind_timelimit', '5'),
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ldapconf.setOption('timelimit', '15'),
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ldapconf.emptyLine(),
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]
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if not dnsok or options.force or options.on_master:
|
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if options.on_master:
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opts.append(ldapconf.setOption('uri', 'ldap://localhost'))
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else:
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opts.append(ldapconf.setOption('uri', 'ldap://{}'.format(
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ipautil.format_netloc(cli_server[0]))))
|
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else:
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opts.append(ldapconf.setOption('nss_srv_domain', cli_domain))
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|
|
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opts.append(ldapconf.emptyLine())
|
|
|
|
# Depending on the release and distribution this may exist in any
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# number of different file names, update what we find
|
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for filename in files:
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try:
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fstore.backup_file(filename)
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ldapconf.newConf(filename, opts)
|
|
except Exception as e:
|
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logger.error("Creation of %s failed: %s", filename, str(e))
|
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return (1, 'LDAP', filename)
|
|
|
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if files:
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return (0, 'LDAP', ', '.join(files))
|
|
|
|
return 0, None, None
|
|
|
|
|
|
def configure_nslcd_conf(
|
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fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options,
|
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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, TLS_CACERT 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': 'TLS_CACERT',
|
|
'type': 'option',
|
|
'value': paths.IPA_CA_CRT
|
|
},
|
|
{
|
|
'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])
|
|
|
|
|
|
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. Currently this doesn't support
|
|
# templating, but that could be changed in the future.
|
|
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)
|
|
|
|
# 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': ' '
|
|
}
|
|
])
|
|
|
|
# SSSD include dir
|
|
if configure_sssd:
|
|
opts.extend([
|
|
{
|
|
'name': 'includedir',
|
|
'type': 'option',
|
|
'value': paths.SSSD_PUBCONF_KRB5_INCLUDE_D_DIR,
|
|
'delim': ' '
|
|
},
|
|
krbconf.emptyLine()])
|
|
|
|
# [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'),
|
|
krbconf.setOption('dns_lookup_kdc', 'false')
|
|
])
|
|
else:
|
|
libopts.extend([
|
|
krbconf.setOption('dns_lookup_realm', 'true'),
|
|
krbconf.setOption('dns_lookup_kdc', 'true')
|
|
])
|
|
libopts.extend([
|
|
krbconf.setOption('rdns', 'false'),
|
|
krbconf.setOption('dns_canonicalize_hostname', 'false'),
|
|
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):
|
|
|
|
if not options.request_cert:
|
|
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)
|
|
|
|
cmonger = services.knownservices.certmonger
|
|
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_service(sssdconfig, 'ifp')
|
|
|
|
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')
|
|
configure_nsswitch_database(
|
|
fstore, 'sudoers', ['sss'],
|
|
default_value=['files'])
|
|
|
|
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)
|
|
|
|
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.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, service):
|
|
try:
|
|
sssdconfig.new_service(service)
|
|
except SSSDConfig.ServiceAlreadyExists:
|
|
pass
|
|
except SSSDConfig.ServiceNotRecognizedError:
|
|
logger.error(
|
|
"Unable to activate the %s service in SSSD config.", service)
|
|
logger.info(
|
|
"Please make sure you have SSSD built with %s support "
|
|
"installed.", service)
|
|
logger.info(
|
|
"Configure %s support manually in /etc/sssd/sssd.conf.", service)
|
|
|
|
sssdconfig.activate_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)
|
|
|
|
changes = {'PubkeyAuthentication': 'yes'}
|
|
|
|
if options.sssd and os.path.isfile(paths.SSS_SSH_KNOWNHOSTSPROXY):
|
|
changes[
|
|
'ProxyCommand'] = '%s -p %%p %%h' % paths.SSS_SSH_KNOWNHOSTSPROXY
|
|
changes['GlobalKnownHostsFile'] = paths.SSSD_PUBCONF_KNOWN_HOSTS
|
|
if options.trust_sshfp:
|
|
changes['VerifyHostKeyDNS'] = 'yes'
|
|
changes['HostKeyAlgorithms'] = 'ssh-rsa,ssh-dss'
|
|
|
|
change_ssh_config(paths.SSH_CONFIG, changes, ['Host', 'Match'])
|
|
logger.info('Configured %s', paths.SSH_CONFIG)
|
|
|
|
|
|
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)
|
|
|
|
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)
|
|
|
|
if sshd.is_running():
|
|
try:
|
|
sshd.restart()
|
|
except Exception as e:
|
|
log_service_error(sshd.service_name, 'restart', e)
|
|
|
|
|
|
def configure_automount(options):
|
|
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')
|
|
|
|
try:
|
|
result = run(args)
|
|
except Exception as e:
|
|
logger.error('Automount configuration failed: %s', str(e))
|
|
else:
|
|
logger.info('%s', result.output_log)
|
|
|
|
|
|
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):
|
|
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)
|
|
ipautil.flush_sync(f)
|
|
|
|
result = False
|
|
try:
|
|
ipautil.run([paths.NSUPDATE, '-g', UPDATE_FILE])
|
|
result = True
|
|
except CalledProcessError as e:
|
|
logger.debug('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"
|
|
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):
|
|
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 = dns.resolver.query(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)
|
|
addr = dns.reversename.from_address(ip_str)
|
|
logger.debug('DNS resolver: Query: %s IN PTR', addr)
|
|
try:
|
|
answers = dns.resolver.query(addr, dns.rdatatype.PTR)
|
|
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 in wrong_reverse:
|
|
for target in wrong_reverse[ip]:
|
|
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):
|
|
|
|
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
|
|
|
|
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, create_sshfp):
|
|
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[:-1].lstrip()
|
|
if not line or line.startswith('#'):
|
|
continue
|
|
try:
|
|
pubkey = SSHPublicKey(line)
|
|
except (ValueError, UnicodeDecodeError):
|
|
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 create_sshfp:
|
|
ttl = 1200
|
|
|
|
update_txt = 'debug\n'
|
|
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):
|
|
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)
|
|
s += '%sValid Until: %s\n' % (indent, cert.not_valid_after)
|
|
s += '\n'
|
|
s = s[:-1]
|
|
|
|
return s
|
|
|
|
|
|
def get_certs_from_ldap(server, base_dn, realm, ca_enabled):
|
|
ldap_uri = ipaldap.get_ldap_uri(server)
|
|
conn = ipaldap.LDAPClient(ldap_uri)
|
|
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=u"Existing ca cert '%s' is " +
|
|
"not a plain file" % (paths.IPA_CA_CRT))
|
|
|
|
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 e:
|
|
logger.error(
|
|
"Failed to remove '%s': %s", ca_file, e)
|
|
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):
|
|
# 3 - Unable to open keytab
|
|
# 5 - Principal name or realm not found in keytab
|
|
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
|
|
|
|
print("This program will set up FreeIPA client.")
|
|
print("Version {}".format(version.VERSION))
|
|
print("")
|
|
|
|
cli_domain_source = 'Unknown source'
|
|
cli_server_source = 'Unknown source'
|
|
|
|
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
|
|
|
|
if not os.getegid() == 0:
|
|
raise ScriptError(
|
|
"You must be root to run ipa-client-install.",
|
|
rval=CLIENT_INSTALL_ERROR)
|
|
|
|
tasks.check_selinux_status()
|
|
|
|
if is_ipa_client_installed(fstore, 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".format(e.conflicting_service))
|
|
print("in favor of chronyd")
|
|
print("")
|
|
except timeconf.NTPConfigurationError:
|
|
pass
|
|
|
|
if options.unattended and (
|
|
options.password is None and
|
|
options.principal is None and
|
|
options.keytab 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.hostname:
|
|
hostname = options.hostname
|
|
hostname_source = 'Provided as option'
|
|
else:
|
|
hostname = socket.getfqdn()
|
|
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)
|
|
|
|
# --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)
|
|
|
|
# when installing with '--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)
|
|
|
|
# Create the discovery instance
|
|
ds = ipadiscovery.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 == ipadiscovery.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 == ipadiscovery.NOT_FQDN:
|
|
raise ScriptError(
|
|
"{} is not a fully-qualified hostname".format(hostname),
|
|
rval=CLIENT_INSTALL_ERROR)
|
|
if ret in (ipadiscovery.NO_LDAP_SERVER, ipadiscovery.NOT_IPA_SERVER) \
|
|
or not ds.domain:
|
|
if ret == ipadiscovery.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 == ipadiscovery.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 (ipadiscovery.NO_LDAP_SERVER, ipadiscovery.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 == ipadiscovery.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 == ipadiscovery.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 == ipadiscovery.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)
|
|
|
|
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)
|
|
|
|
# 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(options, 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)
|
|
|
|
logger.info('Synchronizing time')
|
|
|
|
if not options.ntp_servers:
|
|
ds = ipadiscovery.IPADiscovery()
|
|
ntp_servers = ds.ipadns_search_srv(cli_domain, '_ntp._udp',
|
|
None, break_on_first=False)
|
|
else:
|
|
ntp_servers = options.ntp_servers
|
|
|
|
configured = False
|
|
if ntp_servers or options.ntp_pool:
|
|
configured = timeconf.configure_chrony(ntp_servers, options.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 install(options):
|
|
try:
|
|
_install(options)
|
|
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
|
|
|
|
|
|
def _install(options):
|
|
env = {'PATH': SECURE_PATH}
|
|
|
|
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
|
|
statestore = sysrestore.StateFile(paths.IPA_CLIENT_SYSRESTORE)
|
|
|
|
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, 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):
|
|
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()
|
|
# First test out the kerberos configuration
|
|
fd, krb_name = tempfile.mkstemp()
|
|
os.close(fd)
|
|
ccache_dir = tempfile.mkdtemp(prefix='krbcc')
|
|
try:
|
|
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]
|
|
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.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)
|
|
del os.environ['KRB5_CONFIG']
|
|
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)
|
|
|
|
finally:
|
|
try:
|
|
os.remove(krb_name)
|
|
except OSError:
|
|
logger.error("Could not remove %s", krb_name)
|
|
try:
|
|
os.rmdir(ccache_dir)
|
|
except OSError:
|
|
pass
|
|
try:
|
|
os.remove(krb_name + ".ipabkp")
|
|
except OSError:
|
|
logger.error("Could not remove %s.ipabkp", krb_name)
|
|
|
|
# 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)
|
|
else:
|
|
# Configure krb5.conf
|
|
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)
|
|
|
|
# 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) in ca_certs]
|
|
|
|
x509.write_certificate_list(
|
|
[c for c, n, t, u 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 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)
|
|
configure_certmonger(fstore, subject_base, cli_realm, hostname,
|
|
options, ca_enabled)
|
|
|
|
update_ssh_keys(hostname, paths.SSH_CONFIG_DIR, options.create_sshfp)
|
|
|
|
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
|
|
)
|
|
# 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:
|
|
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"
|
|
"; 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)
|
|
|
|
if options.configure_firefox:
|
|
configure_firefox(options, statestore, cli_domain)
|
|
|
|
if not options.no_nisdomain:
|
|
configure_nisdomain(
|
|
options=options, domain=cli_domain, statestore=statestore)
|
|
|
|
logger.info('Client configuration complete.')
|
|
|
|
|
|
def uninstall_check(options):
|
|
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
|
|
|
|
if not is_ipa_client_installed(fstore):
|
|
raise ScriptError(
|
|
"IPA client is not configured on this system.",
|
|
rval=CLIENT_NOT_CONFIGURED)
|
|
|
|
server_fstore = sysrestore.FileStore(paths.SYSRESTORE)
|
|
if server_fstore.has_files() 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)
|
|
|
|
|
|
def uninstall(options):
|
|
env = {'PATH': SECURE_PATH}
|
|
|
|
fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)
|
|
statestore = sysrestore.StateFile(paths.IPA_CLIENT_SYSRESTORE)
|
|
|
|
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))
|
|
|
|
# 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 as e:
|
|
# 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
|
|
pass
|
|
|
|
if hostname is None:
|
|
hostname = socket.getfqdn()
|
|
|
|
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]
|
|
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):
|
|
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
|
|
|
|
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)
|
|
|
|
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)
|
|
|
|
# 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)
|
|
|
|
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():
|
|
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)
|
|
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 /var/lib/ipa-client/sysrestore.state '
|
|
'but it may\n mean your system hasn\'t been restored '
|
|
'to its pre-installation state.')
|
|
|
|
# Remove the IPA configuration file
|
|
remove_file(paths.IPA_DEFAULT_CONF)
|
|
|
|
# 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): # pylint: disable=no-member
|
|
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(
|
|
# pylint: disable=invalid-sequence-index
|
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typing.List[str], None,
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description="ntp server to use. This option can be used multiple "
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"times",
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cli_names='--ntp-server',
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cli_metavar='NTP_SERVER',
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)
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ntp_servers = enroll_only(ntp_servers)
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|
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ntp_pool = knob(
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str, None,
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description="ntp server pool to use",
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|
)
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ntp_pool = enroll_only(ntp_pool)
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|
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|
no_ntp = knob(
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None,
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|
description="do not configure ntp",
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cli_names=[None, '-N'],
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|
)
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no_ntp = enroll_only(no_ntp)
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|
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force_ntpd = knob(
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None, False,
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deprecated=True,
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|
description="Stop and disable any time&date synchronization services "
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|
"besides ntpd. This option has been deprecated",
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|
)
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force_ntpd = enroll_only(force_ntpd)
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|
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|
nisdomain = knob(
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|
str, None,
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|
description="NIS domain name",
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|
)
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|
nisdomain = enroll_only(nisdomain)
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|
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|
no_nisdomain = knob(
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|
None,
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|
description="do not configure NIS domain name",
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|
)
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|
no_nisdomain = enroll_only(no_nisdomain)
|
|
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|
ssh_trust_dns = knob(
|
|
None,
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|
description="configure OpenSSH client to trust DNS SSHFP records",
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|
)
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|
ssh_trust_dns = enroll_only(ssh_trust_dns)
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|
|
|
no_ssh = knob(
|
|
None,
|
|
description="do not configure OpenSSH client",
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|
)
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|
no_ssh = enroll_only(no_ssh)
|
|
|
|
no_sshd = knob(
|
|
None,
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|
description="do not configure OpenSSH server",
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|
)
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|
no_sshd = enroll_only(no_sshd)
|
|
|
|
no_sudo = knob(
|
|
None,
|
|
description="do not configure SSSD as data source for sudo",
|
|
)
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|
no_sudo = enroll_only(no_sudo)
|
|
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|
no_dns_sshfp = knob(
|
|
None,
|
|
description="do not automatically create DNS SSHFP records",
|
|
)
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|
no_dns_sshfp = enroll_only(no_dns_sshfp)
|
|
|
|
kinit_attempts = knob(
|
|
int, 5,
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|
description="number of attempts to obtain host TGT (defaults to 5).",
|
|
)
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|
kinit_attempts = enroll_only(kinit_attempts)
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|
|
|
@kinit_attempts.validator
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|
def kinit_attempts(self, value):
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|
if value < 1:
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|
raise ValueError("expects an integer greater than 0.")
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|
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|
request_cert = knob(
|
|
None,
|
|
description="request certificate for the machine",
|
|
)
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|
request_cert = prepare_only(request_cert)
|
|
|
|
def __init__(self, **kwargs):
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|
super(ClientInstallInterface, self).__init__(**kwargs)
|
|
|
|
if self.servers and not self.domain_name:
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|
raise RuntimeError(
|
|
"--server cannot be used without providing --domain")
|
|
|
|
if self.force_ntpd:
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|
logger.warning("Option --force-ntpd has been deprecated")
|
|
|
|
if self.ntp_servers and self.no_ntp:
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|
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.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")
|
|
|
|
|
|
class ClientInstall(ClientInstallInterface,
|
|
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)
|