mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2025-02-25 18:55:28 -06:00
1b4aaf5756
Fixes https://fedorahosted.org/freeipa/ticket/1476 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.
1022 lines
40 KiB
Python
Executable File
1022 lines
40 KiB
Python
Executable File
#! /usr/bin/python -E
|
|
# Authors: Simo Sorce <ssorce@redhat.com>
|
|
# Karl MacMillan <kmacmillan@mentalrootkit.com>
|
|
#
|
|
# Copyright (C) 2007 Red Hat
|
|
# see file 'COPYING' for use and warranty information
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
try:
|
|
import sys
|
|
|
|
import os
|
|
import time
|
|
import socket
|
|
import logging
|
|
import tempfile
|
|
import getpass
|
|
import ipaclient.ipadiscovery
|
|
import ipaclient.ipachangeconf
|
|
import ipaclient.ntpconf
|
|
from ipapython.ipautil import run, user_input, CalledProcessError, file_exists
|
|
from ipapython import ipautil
|
|
from ipapython import dnsclient
|
|
from ipapython import sysrestore
|
|
from ipapython import version
|
|
from ipapython import certmonger
|
|
from ipapython.config import IPAOptionParser
|
|
import SSSDConfig
|
|
from ConfigParser import RawConfigParser
|
|
from optparse import SUPPRESS_HELP
|
|
except ImportError:
|
|
print >> sys.stderr, """\
|
|
There was a problem importing one of the required Python modules. The
|
|
error was:
|
|
|
|
%s
|
|
""" % sys.exc_value
|
|
sys.exit(1)
|
|
|
|
client_nss_nickname_format = 'IPA Machine Certificate - %s'
|
|
|
|
def parse_options():
|
|
parser = IPAOptionParser(version=version.VERSION)
|
|
parser.add_option("--domain", dest="domain", help="domain name")
|
|
parser.add_option("--server", dest="server", help="IPA server")
|
|
parser.add_option("--realm", dest="realm_name", help="realm name")
|
|
parser.add_option("-f", "--force", dest="force", action="store_true",
|
|
default=False, help="force setting of LDAP/Kerberos conf")
|
|
parser.add_option("-d", "--debug", dest="debug", action="store_true",
|
|
default=False, help="print debugging information")
|
|
parser.add_option("-U", "--unattended", dest="unattended",
|
|
action="store_true",
|
|
help="unattended installation never prompts the user")
|
|
parser.add_option("--ntp-server", dest="ntp_server", help="ntp server to use")
|
|
parser.add_option("-S", "--no-sssd", action="store_false",
|
|
help="Do not configure the client to use SSSD for authentication", default=True, dest="sssd")
|
|
parser.add_option("-N", "--no-ntp", action="store_false",
|
|
help="do not configure ntp", default=True, dest="conf_ntp")
|
|
parser.add_option("-w", "--password", dest="password", sensitive=True,
|
|
help="password to join the IPA realm (assumes bulk password unless principal is also set)"),
|
|
parser.add_option("-W", dest="prompt_password", action="store_true",
|
|
default=False,
|
|
help="Prompt for a password to join the IPA realm"),
|
|
parser.add_option("-p", "--principal", dest="principal",
|
|
help="principal to use to join the IPA realm"),
|
|
# --on-master is used in ipa-server-install and ipa-replica-install
|
|
# only, it isn't meant to be used on clients.
|
|
parser.add_option("--on-master", dest="on_master", action="store_true",
|
|
help=SUPPRESS_HELP, default=False)
|
|
parser.add_option("--permit", dest="permit", action="store_true",
|
|
help="disable access rules by default, permit all access.", default=False)
|
|
parser.add_option("--mkhomedir", dest="mkhomedir", action="store_true",
|
|
help="create home directories for users on their first login", default=False)
|
|
parser.add_option("", "--uninstall", dest="uninstall", action="store_true",
|
|
default=False, help="uninstall an existing installation")
|
|
parser.add_option("", "--hostname", dest="hostname",
|
|
help="The hostname of this server (FQDN). By default of nodename from uname(2) is used.")
|
|
parser.add_option("", "--enable-dns-updates", dest="dns_updates", action="store_true", default=False,
|
|
help="Configures the machine to attempt dns updates when the ip address changes.")
|
|
parser.add_option("--no-krb5-offline-passwords", dest="krb5_offline_passwords", action="store_false",
|
|
help="Configure SSSD not to store user password when the server is offline", default=True)
|
|
|
|
options, args = parser.parse_args()
|
|
safe_opts = parser.get_safe_opts(options)
|
|
|
|
if (options.server and not options.domain):
|
|
parser.error("--server cannot be used without providing --domain")
|
|
|
|
return safe_opts, options
|
|
|
|
def logging_setup(options):
|
|
# Always log everything (i.e., DEBUG) to the log
|
|
# file.
|
|
|
|
log_file = "/var/log/ipaclient-install.log"
|
|
if options.uninstall:
|
|
log_file = "/var/log/ipaclient-uninstall.log"
|
|
|
|
old_umask = os.umask(077)
|
|
logging.basicConfig(level=logging.DEBUG,
|
|
format='%(asctime)s %(levelname)s %(message)s',
|
|
filename=log_file,
|
|
filemode='w')
|
|
os.umask(old_umask)
|
|
|
|
console = logging.StreamHandler()
|
|
# If the debug option is set, also log debug messages to the console
|
|
if options.debug:
|
|
console.setLevel(logging.DEBUG)
|
|
else:
|
|
# Otherwise, log critical and error messages
|
|
console.setLevel(logging.ERROR)
|
|
formatter = logging.Formatter('%(name)-12s: %(levelname)-8s %(message)s')
|
|
console.setFormatter(formatter)
|
|
logging.getLogger('').addHandler(console)
|
|
|
|
def nickname_exists(nickname):
|
|
(sout, serr, returncode) = run(["/usr/bin/certutil", "-L", "-d", "/etc/pki/nssdb", "-n", nickname], raiseonerr=False)
|
|
|
|
if returncode == 0:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def uninstall(options, env):
|
|
|
|
if not fstore.has_files():
|
|
print "IPA client is not configured on this system."
|
|
return 2
|
|
|
|
server_fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')
|
|
if server_fstore.has_files() and not options.on_master:
|
|
print "IPA client is configured as a part of IPA server on this system."
|
|
print "Please refer to ipa-server-install for uninstallation."
|
|
return 2
|
|
|
|
sssdconfig = SSSDConfig.SSSDConfig()
|
|
sssdconfig.import_config()
|
|
domains = sssdconfig.list_active_domains()
|
|
|
|
hostname = None
|
|
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
|
|
|
|
if hostname is None:
|
|
hostname = socket.getfqdn()
|
|
|
|
client_nss_nickname = client_nss_nickname_format % hostname
|
|
|
|
# Remove our host cert and CA cert
|
|
if nickname_exists("IPA CA"):
|
|
try:
|
|
run(["/usr/bin/certutil", "-D", "-d", "/etc/pki/nssdb", "-n", "IPA CA"])
|
|
except Exception, e:
|
|
print "Failed to remove IPA CA from /etc/pki/nssdb: %s" % str(e)
|
|
|
|
# Always start certmonger. We can't untrack something if it isn't
|
|
# running
|
|
try:
|
|
ipautil.service_start('certmonger')
|
|
except Exception, e:
|
|
logging.error("certmonger failed to start: %s" % str(e))
|
|
|
|
try:
|
|
certmonger.stop_tracking('/etc/pki/nssdb', nickname=client_nss_nickname)
|
|
except (CalledProcessError, RuntimeError), e:
|
|
logging.error("certmonger failed to stop tracking certificate: %s" % str(e))
|
|
|
|
if nickname_exists(client_nss_nickname):
|
|
try:
|
|
run(["/usr/bin/certutil", "-D", "-d", "/etc/pki/nssdb", "-n", client_nss_nickname])
|
|
except Exception, e:
|
|
print "Failed to remove %s from /etc/pki/nssdb: %s" % (client_nss_nickname, str(e))
|
|
|
|
try:
|
|
ipautil.service_stop('certmonger')
|
|
except Exception, e:
|
|
logging.error("certmonger failed to stop: %s" % str(e))
|
|
|
|
# Remove any special principal names we added to the IPA CA helper
|
|
certmonger.remove_principal_from_cas()
|
|
|
|
try:
|
|
ipautil.chkconfig_off('certmonger')
|
|
except Exception, e:
|
|
print "Failed to disable automatic startup of the certmonger daemon"
|
|
logging.error("Failed to disable automatic startup of the certmonger daemon: %s" % str(e))
|
|
|
|
if not options.on_master:
|
|
print "Unenrolling client from IPA server"
|
|
join_args = ["/usr/sbin/ipa-join", "--unenroll", "-h", hostname]
|
|
(stdout, stderr, returncode) = run(join_args, raiseonerr=False, env=env)
|
|
if returncode != 0:
|
|
print "Unenrolling host failed: %s" % stderr
|
|
|
|
print "Removing Kerberos service principals from /etc/krb5.keytab"
|
|
try:
|
|
parser = RawConfigParser()
|
|
fp = open('/etc/ipa/default.conf', 'r')
|
|
parser.readfp(fp)
|
|
fp.close()
|
|
realm = parser.get('global', 'realm')
|
|
run(["/usr/sbin/ipa-rmkeytab", "-k", "/etc/krb5.keytab", "-r", realm])
|
|
except Exception, e:
|
|
print "Failed to clean up /etc/krb5.keytab"
|
|
logging.error("Failed to remove Kerberos service principals: %s" % str(e))
|
|
|
|
print "Disabling client Kerberos and LDAP configurations"
|
|
try:
|
|
run(["/usr/sbin/authconfig", "--disableldap", "--disablekrb5", "--disablesssd", "--disablesssdauth", "--disablemkhomedir", "--update"])
|
|
except Exception, e:
|
|
print "Failed to remove krb5/LDAP configuration. " +str(e)
|
|
sys.exit(1)
|
|
|
|
print "Restoring client configuration files"
|
|
fstore.restore_all_files()
|
|
|
|
if ipautil.service_is_installed('nscd'):
|
|
try:
|
|
ipautil.service_restart('nscd')
|
|
except:
|
|
print "Failed to restart start the NSCD daemon"
|
|
|
|
try:
|
|
ipautil.chkconfig_on('nscd')
|
|
except:
|
|
print "Failed to configure automatic startup of the NSCD daemon"
|
|
else:
|
|
# this is optional service, just log
|
|
logging.info("NSCD daemon is not installed, skip configuration")
|
|
|
|
if ipautil.service_is_installed('nslcd'):
|
|
try:
|
|
ipautil.service_stop('nslcd')
|
|
except:
|
|
print "Failed to stop the NSLCD daemon"
|
|
|
|
try:
|
|
ipautil.chkconfig_off('nslcd')
|
|
except:
|
|
print "Failed to disable automatic startup of the NSLCD daemon"
|
|
else:
|
|
# this is optional service, just log
|
|
logging.info("NSLCD daemon is not installed, skip configuration")
|
|
|
|
if not options.unattended:
|
|
print "The original nsswitch.conf configuration has been restored."
|
|
print "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(["/usr/bin/reboot"])
|
|
except Exception, e:
|
|
print "Reboot command failed to exceute. " + str(e)
|
|
sys.exit(1)
|
|
|
|
# Remove the IPA configuration file
|
|
try:
|
|
os.remove("/etc/ipa/default.conf")
|
|
except:
|
|
pass
|
|
|
|
def configure_ipa_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server):
|
|
ipaconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
|
|
ipaconf.setOptionAssignment(" = ")
|
|
ipaconf.setSectionNameDelimiters(("[","]"))
|
|
|
|
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
|
|
{'name':'empty', 'type':'empty'}]
|
|
|
|
#[global]
|
|
defopts = [{'name':'basedn', 'type':'option', 'value':cli_basedn},
|
|
{'name':'realm', 'type':'option', 'value':cli_realm},
|
|
{'name':'domain', 'type':'option', 'value':cli_domain},
|
|
{'name':'server', 'type':'option', 'value':cli_server},
|
|
{'name':'xmlrpc_uri', 'type':'option', 'value':'https://%s/ipa/xml' % cli_server},
|
|
{'name':'enable_ra', 'type':'option', 'value':'True'}]
|
|
|
|
opts.append({'name':'global', 'type':'section', 'value':defopts})
|
|
opts.append({'name':'empty', 'type':'empty'})
|
|
|
|
fstore.backup_file("/etc/ipa/default.conf")
|
|
ipaconf.newConf("/etc/ipa/default.conf", opts)
|
|
|
|
return 0
|
|
|
|
def configure_ldap_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options):
|
|
ldapconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
|
|
ldapconf.setOptionAssignment(" ")
|
|
|
|
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
|
|
{'name':'empty', 'type':'empty'},
|
|
{'name':'ldap_version', 'type':'option', 'value':'3'},
|
|
{'name':'base', 'type':'option', 'value':cli_basedn},
|
|
{'name':'empty', 'type':'empty'},
|
|
{'name':'nss_base_passwd', 'type':'option', 'value':'cn=users,cn=accounts,'+cli_basedn+'?sub'},
|
|
{'name':'nss_base_group', 'type':'option', 'value':'cn=groups,cn=accounts,'+cli_basedn+'?sub'},
|
|
{'name':'nss_schema', 'type':'option', 'value':'rfc2307bis'},
|
|
{'name':'nss_map_attribute', 'type':'option', 'value':'uniqueMember member'},
|
|
{'name':'nss_initgroups_ignoreusers', 'type':'option', 'value':'root,dirsrv'},
|
|
{'name':'empty', 'type':'empty'},
|
|
{'name':'nss_reconnect_maxsleeptime', 'type':'option', 'value':'8'},
|
|
{'name':'nss_reconnect_sleeptime', 'type':'option', 'value':'1'},
|
|
{'name':'bind_timelimit', 'type':'option', 'value':'5'},
|
|
{'name':'timelimit', 'type':'option', 'value':'15'},
|
|
{'name':'empty', 'type':'empty'}]
|
|
if not dnsok or options.force or options.on_master:
|
|
if options.on_master:
|
|
opts.append({'name':'uri', 'type':'option', 'value':'ldap://localhost'})
|
|
else:
|
|
opts.append({'name':'uri', 'type':'option', 'value':'ldap://'+cli_server})
|
|
else:
|
|
opts.append({'name':'nss_srv_domain', 'type':'option', 'value':cli_domain})
|
|
|
|
opts.append({'name':'empty', 'type':'empty'})
|
|
|
|
# Depending on the release and distribution this may exist in any
|
|
# number of different file names, update what we find
|
|
for filename in ['/etc/ldap.conf', '/etc/nss_ldap.conf', '/etc/libnss-ldap.conf', '/etc/pam_ldap.conf']:
|
|
if file_exists(filename):
|
|
try:
|
|
fstore.backup_file(filename)
|
|
ldapconf.newConf(filename, opts)
|
|
except Exception, e:
|
|
print "Creation of %s: %s" % (filename, str(e))
|
|
return 1
|
|
|
|
return 0
|
|
|
|
def configure_nslcd_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options):
|
|
nslcdconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
|
|
nslcdconf.setOptionAssignment(" ")
|
|
|
|
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
|
|
{'name':'empty', 'type':'empty'},
|
|
{'name':'ldap_version', 'type':'option', 'value':'3'},
|
|
{'name':'base', 'type':'option', 'value':cli_basedn},
|
|
{'name':'empty', 'type':'empty'},
|
|
{'name':'base passwd', 'type':'option', 'value':'cn=users,cn=accounts,'+cli_basedn},
|
|
{'name':'base group', 'type':'option', 'value':'cn=groups,cn=accounts,'+cli_basedn},
|
|
{'name':'map group', 'type':'option', 'value':'uniqueMember member'},
|
|
{'name':'timelimit', 'type':'option', 'value':'15'},
|
|
{'name':'empty', 'type':'empty'}]
|
|
if not dnsok or options.force or options.on_master:
|
|
if options.on_master:
|
|
opts.append({'name':'uri', 'type':'option', 'value':'ldap://localhost'})
|
|
else:
|
|
opts.append({'name':'uri', 'type':'option', 'value':'ldap://'+cli_server})
|
|
else:
|
|
opts.append({'name':'uri', 'type':'option', 'value':'DNS'})
|
|
|
|
opts.append({'name':'empty', 'type':'empty'})
|
|
|
|
if file_exists('/etc/nslcd.conf'):
|
|
try:
|
|
fstore.backup_file('/etc/nslcd.conf')
|
|
nslcdconf.newConf('/etc/nslcd.conf', opts)
|
|
except Exception, e:
|
|
print "Creation of %s: %s" % ('/etc/nslcd.conf', str(e))
|
|
return 1
|
|
|
|
if ipautil.service_is_installed('nslcd'):
|
|
try:
|
|
ipautil.service_restart('nslcd')
|
|
except Exception, e:
|
|
logging.error("nslcd failed to restart: %s" % str(e))
|
|
|
|
try:
|
|
ipautil.chkconfig_on('nslcd')
|
|
except Exception, e:
|
|
print "Failed to configure automatic startup of the NSLCD daemon"
|
|
logging.error("Failed to enable automatic startup of the NSLCD daemon: %s" % str(e))
|
|
else:
|
|
logging.debug("NSLCD daemon is not installed, skip configuration")
|
|
|
|
return 0
|
|
|
|
def hardcode_ldap_server(cli_server):
|
|
"""
|
|
DNS Discovery didn't return a valid IPA server, hardcode a value into
|
|
the file instead.
|
|
"""
|
|
if not file_exists('/etc/ldap.conf'):
|
|
return
|
|
|
|
ldapconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
|
|
ldapconf.setOptionAssignment(" ")
|
|
|
|
opts = [{'name':'uri', 'type':'option', 'action':'set', 'value':'ldap://'+cli_server},
|
|
{'name':'empty', 'type':'empty'}]
|
|
|
|
# Errors raised by this should be caught by the caller
|
|
ldapconf.changeConf("/etc/ldap.conf", opts)
|
|
|
|
return
|
|
|
|
def configure_krb5_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, cli_kdc, dnsok, options, filename):
|
|
|
|
krbconf = ipaclient.ipachangeconf.IPAChangeConf("IPA Installer")
|
|
krbconf.setOptionAssignment(" = ")
|
|
krbconf.setSectionNameDelimiters(("[","]"))
|
|
krbconf.setSubSectionDelimiters(("{","}"))
|
|
krbconf.setIndent((""," "," "))
|
|
|
|
opts = [{'name':'comment', 'type':'comment', 'value':'File modified by ipa-client-install'},
|
|
{'name':'empty', 'type':'empty'}]
|
|
|
|
#[libdefaults]
|
|
libopts = [{'name':'default_realm', 'type':'option', 'value':cli_realm}]
|
|
if not dnsok or not cli_kdc or options.force:
|
|
libopts.append({'name':'dns_lookup_realm', 'type':'option', 'value':'false'})
|
|
libopts.append({'name':'dns_lookup_kdc', 'type':'option', 'value':'false'})
|
|
else:
|
|
libopts.append({'name':'dns_lookup_realm', 'type':'option', 'value':'true'})
|
|
libopts.append({'name':'dns_lookup_kdc', 'type':'option', 'value':'true'})
|
|
libopts.append({'name':'rdns', 'type':'option', 'value':'false'})
|
|
libopts.append({'name':'ticket_lifetime', 'type':'option', 'value':'24h'})
|
|
libopts.append({'name':'forwardable', 'type':'option', 'value':'yes'})
|
|
|
|
opts.append({'name':'libdefaults', 'type':'section', 'value':libopts})
|
|
opts.append({'name':'empty', 'type':'empty'})
|
|
|
|
#the following are necessary only if DNS discovery does not work
|
|
if not dnsok or not cli_kdc or options.force:
|
|
#[realms]
|
|
kropts =[{'name':'kdc', 'type':'option', 'value':cli_server+':88'},
|
|
{'name':'admin_server', 'type':'option', 'value':cli_server+':749'},
|
|
{'name':'default_domain', 'type':'option', 'value':cli_domain}]
|
|
else:
|
|
kropts = []
|
|
kropts.append({'name':'pkinit_anchors', 'type':'option', 'value':'FILE:/etc/ipa/ca.crt'})
|
|
ropts = [{'name':cli_realm, 'type':'subsection', 'value':kropts}]
|
|
|
|
opts.append({'name':'realms', 'type':'section', 'value':ropts})
|
|
opts.append({'name':'empty', 'type':'empty'})
|
|
|
|
#[domain_realm]
|
|
dropts = [{'name':'.'+cli_domain, 'type':'option', 'value':cli_realm},
|
|
{'name':cli_domain, 'type':'option', 'value':cli_realm}]
|
|
opts.append({'name':'domain_realm', 'type':'section', 'value':dropts})
|
|
opts.append({'name':'empty', 'type':'empty'})
|
|
|
|
#[appdefaults]
|
|
pamopts = [{'name':'debug', 'type':'option', 'value':'false'},
|
|
{'name':'krb4_convert', 'type':'option', 'value':'false'}]
|
|
appopts = [{'name':'pam', 'type':'subsection', 'value':pamopts}]
|
|
opts.append({'name':'appdefaults', 'type':'section', 'value':appopts})
|
|
|
|
logging.debug("Writing Kerberos configuration to %s:\n%s"
|
|
% (filename, krbconf.dump(opts)))
|
|
|
|
krbconf.newConf(filename, opts);
|
|
|
|
return 0
|
|
|
|
def configure_certmonger(fstore, subject_base, cli_realm, hostname, options):
|
|
started = True
|
|
principal = 'host/%s@%s' % (hostname, cli_realm)
|
|
|
|
# Ensure that certmonger has been started at least once to generate the
|
|
# cas files in /var/lib/certmonger/cas.
|
|
try:
|
|
ipautil.service_restart('certmonger')
|
|
except Exception, e:
|
|
logging.error("certmonger failed to restart: %s" % str(e))
|
|
|
|
if options.hostname:
|
|
# It needs to be stopped if we touch them
|
|
try:
|
|
ipautil.service_stop('certmonger')
|
|
except Exception, e:
|
|
logging.error("certmonger failed to stop: %s" % str(e))
|
|
# If the hostname is explicitly set then we need to tell certmonger
|
|
# which principal name to use when requesting certs.
|
|
certmonger.add_principal_to_cas(principal)
|
|
|
|
try:
|
|
ipautil.service_restart('certmonger')
|
|
except Exception, e:
|
|
print "Failed to start the certmonger daemon"
|
|
print "Automatic certificate management will not be available"
|
|
logging.error("certmonger failed to restart: %s" % str(e))
|
|
started = False
|
|
|
|
try:
|
|
ipautil.chkconfig_on('certmonger')
|
|
except Exception, e:
|
|
print "Failed to configure automatic startup of the certmonger daemon"
|
|
print "Automatic certificate management will not be available"
|
|
logging.error("Failed to disable automatic startup of the certmonger daemon: %s" % str(e))
|
|
|
|
# Request our host cert
|
|
if started:
|
|
client_nss_nickname = client_nss_nickname_format % hostname
|
|
subject = 'CN=%s,%s' % (hostname, subject_base)
|
|
try:
|
|
run(["ipa-getcert", "request", "-d", "/etc/pki/nssdb", "-n", client_nss_nickname, "-N", subject, "-K", principal])
|
|
except:
|
|
print "certmonger request for host certificate failed"
|
|
|
|
def configure_sssd_conf(fstore, cli_realm, cli_domain, cli_server, options):
|
|
sssdconfig = SSSDConfig.SSSDConfig()
|
|
sssdconfig.new_config()
|
|
|
|
domain = sssdconfig.new_domain(cli_domain)
|
|
domain.add_provider('ipa', 'id')
|
|
|
|
if not options.on_master:
|
|
domain.set_option('ipa_server', '_srv_, %s' % cli_server)
|
|
else:
|
|
# the master should only use itself for Kerberos
|
|
domain.set_option('ipa_server', cli_server)
|
|
domain.set_option('ipa_domain', cli_domain)
|
|
if options.hostname:
|
|
domain.set_option('ipa_hostname', options.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', '/etc/ipa/ca.crt')
|
|
|
|
if options.dns_updates:
|
|
domain.set_option('ipa_dyndns_update', True)
|
|
if options.krb5_offline_passwords:
|
|
domain.set_option('krb5_store_password_if_offline', True)
|
|
|
|
domain.set_active(True)
|
|
|
|
sssdconfig.save_domain(domain)
|
|
sssdconfig.write("/etc/sssd/sssd.conf")
|
|
|
|
return 0
|
|
|
|
def resolve_ipaddress(server):
|
|
""" Connect to the server's LDAP port in order to determine what ip
|
|
address this machine uses as "public" ip (relative to the server).
|
|
"""
|
|
|
|
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
|
|
s.connect((server, 389))
|
|
addr, port = s.getsockname()
|
|
s.close()
|
|
|
|
return addr
|
|
|
|
UPDATE_TEMPLATE_A = """
|
|
zone $ZONE.
|
|
update delete $HOSTNAME. IN A
|
|
send
|
|
update add $HOSTNAME. $TTL IN A $IPADDRESS
|
|
send
|
|
"""
|
|
|
|
UPDATE_TEMPLATE_AAAA = """
|
|
zone $ZONE.
|
|
update delete $HOSTNAME. IN AAAA
|
|
send
|
|
update add $HOSTNAME. $TTL IN AAAA $IPADDRESS
|
|
send
|
|
"""
|
|
|
|
UPDATE_FILE = "/etc/ipa/.dns_update.txt"
|
|
CCACHE_FILE = "/etc/ipa/.dns_ccache"
|
|
|
|
def update_dns(server, hostname):
|
|
|
|
ip = resolve_ipaddress(server)
|
|
princ = 'host/%s' % hostname
|
|
|
|
sub_dict = dict(HOSTNAME=hostname,
|
|
IPADDRESS=ip,
|
|
TTL=1200,
|
|
ZONE='.'.join(hostname.split('.')[1:])
|
|
)
|
|
|
|
template = None
|
|
if len(ip.split('.')) == 4:
|
|
template = UPDATE_TEMPLATE_A
|
|
elif len(ip.split(':')) > 1:
|
|
template = UPDATE_TEMPLATE_AAAA
|
|
|
|
if template is None:
|
|
print >>sys.stderr, "Failed to determine machine's ip address."
|
|
print >>sys.stderr, "Failed to update DNS A record."
|
|
return
|
|
|
|
update_txt = ipautil.template_str(template, sub_dict)
|
|
|
|
logging.debug("Writing nsupdate commands to %s:\n%s"
|
|
% (UPDATE_FILE, update_txt))
|
|
|
|
update_fd = file(UPDATE_FILE, "w")
|
|
update_fd.write(update_txt)
|
|
update_fd.flush()
|
|
update_fd.close()
|
|
|
|
try:
|
|
ipautil.run(['/usr/bin/kinit', '-k', '-t', '/etc/krb5.keytab', princ],
|
|
env={'KRB5CCNAME':CCACHE_FILE})
|
|
except CalledProcessError, e:
|
|
print >>sys.stderr, "Failed to obtain host TGT."
|
|
|
|
try:
|
|
ipautil.run(['/usr/bin/nsupdate', '-g', UPDATE_FILE],
|
|
env={'KRB5CCNAME':CCACHE_FILE})
|
|
print "DNS server record set to: %s -> %s" % (hostname, ip)
|
|
except CalledProcessError, e:
|
|
print >>sys.stderr, "Failed to update DNS A record. (%s)" % str(e)
|
|
|
|
try:
|
|
os.remove(UPDATE_FILE)
|
|
os.remove(CCACHE_FILE)
|
|
except:
|
|
pass
|
|
|
|
def client_dns(server, hostname, dns_updates=False):
|
|
|
|
dns_ok = False
|
|
|
|
# Check if the client has an A record registered in its name.
|
|
rs = dnsclient.query(hostname+".", dnsclient.DNS_C_IN, dnsclient.DNS_T_A)
|
|
if len([ rec for rec in rs if rec.dns_type is not dnsclient.DNS_T_SOA ]) > 0:
|
|
dns_ok = True
|
|
else:
|
|
rs = dnsclient.query(hostname+".", dnsclient.DNS_C_IN, dnsclient.DNS_T_AAAA)
|
|
if len([ rec for rec in rs if rec.dns_type is not dnsclient.DNS_T_SOA ]) > 0:
|
|
dns_ok = True
|
|
else:
|
|
print "Warning: Hostname (%s) not found in DNS" % hostname
|
|
|
|
if dns_updates or not dns_ok:
|
|
update_dns(server, hostname)
|
|
|
|
def main():
|
|
safe_options, options = parse_options()
|
|
logging_setup(options)
|
|
logging.debug('%s was invoked with options: %s' % (sys.argv[0], safe_options))
|
|
logging.debug("missing options might be asked for interactively later\n")
|
|
dnsok = False
|
|
env={"PATH":"/bin:/sbin:/usr/kerberos/bin:/usr/kerberos/sbin:/usr/bin:/usr/sbin"}
|
|
|
|
global fstore
|
|
fstore = sysrestore.FileStore('/var/lib/ipa-client/sysrestore')
|
|
|
|
if options.uninstall:
|
|
return uninstall(options, env)
|
|
|
|
if fstore.has_files():
|
|
sys.exit("IPA client is already configured on this system.\n"
|
|
+ "If you want to reinstall the IPA client please uninstall it first.")
|
|
|
|
cli_domain = None
|
|
cli_server = None
|
|
cli_realm = None
|
|
cli_basedn = None
|
|
subject_base = None
|
|
|
|
if options.unattended and (options.password is None and options.principal is None and options.prompt_password is False) and not options.on_master:
|
|
sys.exit("One of password and principal are required.")
|
|
|
|
if options.hostname:
|
|
hostname = options.hostname
|
|
else:
|
|
hostname = socket.getfqdn()
|
|
if hostname != hostname.lower():
|
|
sys.exit('Invalid hostname \'%s\', must be lower-case.' % hostname)
|
|
|
|
# Create the discovery instance
|
|
ds = ipaclient.ipadiscovery.IPADiscovery()
|
|
|
|
ret = ds.search(domain=options.domain, server=options.server)
|
|
|
|
if ret == -10:
|
|
print >>sys.stderr, "Can't get the fully qualified name of this host"
|
|
print >>sys.stderr, "Please check that the client is properly configured"
|
|
return ret
|
|
if ret == -1 or not ds.getDomainName():
|
|
logging.debug("Domain not found")
|
|
if options.domain:
|
|
cli_domain = options.domain
|
|
elif options.unattended:
|
|
print >>sys.stderr, "Unable to discover domain, not provided on command line"
|
|
return ret
|
|
else:
|
|
print "DNS discovery failed to determine your DNS domain"
|
|
cli_domain = user_input("Please provide the domain name of your IPA server (ex: example.com)", allow_empty = False)
|
|
logging.debug("will use domain: %s\n", cli_domain)
|
|
ret = ds.search(domain=cli_domain, server=options.server)
|
|
|
|
if not cli_domain:
|
|
if ds.getDomainName():
|
|
cli_domain = ds.getDomainName()
|
|
logging.debug("will use domain: %s\n", cli_domain)
|
|
|
|
if ret == -2 or not ds.getServerName():
|
|
logging.debug("IPA Server not found")
|
|
if options.server:
|
|
cli_server = options.server
|
|
elif options.unattended:
|
|
print >>sys.stderr, "Unable to find IPA Server to join"
|
|
return ret
|
|
else:
|
|
print "DNS discovery failed to find the IPA Server"
|
|
cli_server = user_input("Please provide your IPA server name (ex: ipa.example.com)", allow_empty = False)
|
|
logging.debug("will use server: %s\n", cli_server)
|
|
ret = ds.search(domain=cli_domain, server=cli_server)
|
|
else:
|
|
dnsok = True
|
|
if not cli_server:
|
|
if ds.getServerName():
|
|
cli_server = ds.getServerName()
|
|
logging.debug("will use server: %s\n", cli_server)
|
|
|
|
if ret != 0:
|
|
print >>sys.stderr, "Failed to verify that "+cli_server+" is an IPA Server."
|
|
print >>sys.stderr, "This may mean that the remote server is not up or is not reachable"
|
|
print >>sys.stderr, "due to network or firewall settings."
|
|
return ret
|
|
|
|
cli_kdc = ds.getKDCName()
|
|
if dnsok and not cli_kdc:
|
|
print >>sys.stderr, "DNS domain '%s' is not configured for automatic KDC address lookup." % ds.getRealmName().lower()
|
|
print >>sys.stderr, "KDC address will be set to fixed value.\n"
|
|
|
|
if dnsok:
|
|
print "Discovery was successful!"
|
|
elif not options.unattended:
|
|
print "\nThe failure to use DNS to find your IPA server indicates that your"
|
|
print "resolv.conf file is not properly configured.\n"
|
|
print "Autodiscovery of servers for failover cannot work with this configuration.\n"
|
|
print "If you proceed with the installation, services will be configured to always"
|
|
print "access the discovered server for all operation and will not fail over to"
|
|
print "other servers in case of failure.\n"
|
|
if not user_input("Proceed with fixed values and no DNS discovery?", False):
|
|
return ret
|
|
|
|
if options.realm_name and options.realm_name != ds.getRealmName():
|
|
if not options.unattended:
|
|
print >>sys.stderr, "ERROR: The provided realm name: ["+options.realm_name+"] does not match with the discovered one: ["+ds.getRealmName()+"]\n"
|
|
return -3
|
|
|
|
cli_realm = ds.getRealmName()
|
|
logging.debug("will use cli_realm: %s\n", cli_realm)
|
|
cli_basedn = ds.getBaseDN()
|
|
logging.debug("will use cli_basedn: %s\n", cli_basedn)
|
|
subject_base = "O=%s" % ds.getRealmName()
|
|
|
|
print "Hostname: "+hostname
|
|
print "Realm: "+cli_realm
|
|
print "DNS Domain: "+cli_domain
|
|
print "IPA Server: "+cli_server
|
|
print "BaseDN: "+cli_basedn
|
|
|
|
print "\n"
|
|
if not options.unattended and not user_input("Continue to configure the system with these values?", False):
|
|
return 1
|
|
|
|
if not options.unattended:
|
|
if options.principal is None and options.password is None and options.prompt_password is False:
|
|
options.principal = user_input("User authorized to enroll computers", allow_empty=False)
|
|
logging.debug("will use principal: %s\n", options.principal)
|
|
|
|
# Get the CA certificate
|
|
try:
|
|
# Remove anything already there so that wget doesn't use its
|
|
# too-clever renaming feature
|
|
os.remove("/etc/ipa/ca.crt")
|
|
except:
|
|
pass
|
|
|
|
try:
|
|
run(["/usr/bin/wget", "-O", "/etc/ipa/ca.crt", "http://%s/ipa/config/ca.crt" % cli_server])
|
|
except CalledProcessError, e:
|
|
sys.exit('Retrieving CA from %s failed.\n%s' % (cli_server, str(e)))
|
|
|
|
if not options.on_master:
|
|
# First test out the kerberos configuration
|
|
try:
|
|
(krb_fd, krb_name) = tempfile.mkstemp()
|
|
os.close(krb_fd)
|
|
if configure_krb5_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, cli_kdc, dnsok, options, krb_name):
|
|
sys.exit("Test kerberos configuration failed")
|
|
env['KRB5_CONFIG'] = krb_name
|
|
join_args = ["/usr/sbin/ipa-join", "-s", cli_server]
|
|
if options.debug:
|
|
join_args.append("-d")
|
|
if options.hostname:
|
|
join_args.append("-h")
|
|
join_args.append(options.hostname)
|
|
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:
|
|
stdin = getpass.getpass("Password for %s: " % principal)
|
|
if not stdin:
|
|
sys.exit("Password must be provided for %s. " %
|
|
principal)
|
|
else:
|
|
if sys.stdin.isatty():
|
|
sys.exit("Password must be provided in non-interactive mode.\nThis can be done via echo password | ipa-client-install ... or\nwith the -w option.")
|
|
else:
|
|
stdin = sys.stdin.readline()
|
|
|
|
(stderr, stdout, returncode) = run(["kinit", principal], raiseonerr=False, stdin=stdin, env=env)
|
|
print ""
|
|
if returncode != 0:
|
|
sys.exit(stdout)
|
|
elif options.password:
|
|
join_args.append("-w")
|
|
join_args.append(options.password)
|
|
elif options.prompt_password:
|
|
if options.unattended:
|
|
sys.exit("Password must be provided in non-interactive mode")
|
|
password = getpass.getpass("Password: ")
|
|
join_args.append("-w")
|
|
join_args.append(password)
|
|
|
|
# Now join the domain
|
|
(stdout, stderr, returncode) = run(join_args, raiseonerr=False, env=env)
|
|
|
|
if returncode != 0:
|
|
if returncode == 17: # XML-RPC fault - possible IPA v1/v2 incompatibility
|
|
print "Joining realm failed because of failing XML-RPC request."
|
|
print " This error may be caused by incompatible server/client major versions."
|
|
else:
|
|
print >>sys.stderr, "Joining realm failed: %s" % stderr,
|
|
if not options.force:
|
|
return 1
|
|
print " Use ipa-getkeytab to obtain a host principal for this server."
|
|
else:
|
|
print "Enrolled in IPA realm %s" % cli_realm
|
|
|
|
start = stderr.find('Certificate subject base is: ')
|
|
if start >= 0:
|
|
start = start + 29
|
|
subject_base = stderr[start:]
|
|
subject_base = subject_base.strip()
|
|
|
|
finally:
|
|
if options.principal is not None:
|
|
(stderr, stdout, returncode) = run(["kdestroy"], raiseonerr=False, env=env)
|
|
os.remove(krb_name)
|
|
os.remove(krb_name + ".ipabkp")
|
|
|
|
# Configure ipa.conf
|
|
if not options.on_master:
|
|
configure_ipa_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server)
|
|
print "Created /etc/ipa/default.conf"
|
|
|
|
# Always back up sssd.conf. It gets updated by authconfig --enablekrb5.
|
|
fstore.backup_file("/etc/sssd/sssd.conf")
|
|
if options.sssd:
|
|
if configure_sssd_conf(fstore, cli_realm, cli_domain, cli_server, options):
|
|
return 1
|
|
print "Configured /etc/sssd/sssd.conf"
|
|
|
|
# Add the CA to the default NSS database and trust it
|
|
run(["/usr/bin/certutil", "-A", "-d", "/etc/pki/nssdb", "-n", "IPA CA", "-t", "CT,C,C", "-a", "-i", "/etc/ipa/ca.crt"])
|
|
|
|
# If on master assume kerberos is already configured properly.
|
|
if not options.on_master:
|
|
# Configure krb5.conf
|
|
fstore.backup_file("/etc/krb5.conf")
|
|
if configure_krb5_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, cli_kdc, dnsok, options, "/etc/krb5.conf"):
|
|
return 1
|
|
|
|
print "Configured /etc/krb5.conf for IPA realm " + cli_realm
|
|
|
|
configure_certmonger(fstore, subject_base, cli_realm, hostname, options)
|
|
|
|
#Try to update the DNS records, failure is not fatal
|
|
if not options.on_master:
|
|
client_dns(cli_server, hostname, options.dns_updates)
|
|
|
|
#Name Server Caching Daemon. Disable for SSSD, use otherwise (if installed)
|
|
if ipautil.service_is_installed("nscd"):
|
|
if options.sssd:
|
|
nscd_service_action = "stop"
|
|
nscd_service_cmd = ipautil.service_stop
|
|
nscd_chkconfig_cmd = ipautil.chkconfig_off
|
|
else:
|
|
nscd_service_action = "restart"
|
|
nscd_service_cmd = ipautil.service_restart
|
|
nscd_chkconfig_cmd = ipautil.chkconfig_on
|
|
|
|
try:
|
|
nscd_service_cmd('nscd')
|
|
except:
|
|
print >>sys.stderr, "Failed to %s the NSCD daemon" % nscd_service_action
|
|
if not options.sssd:
|
|
print >>sys.stderr, "Caching of users/groups will not be available"
|
|
|
|
try:
|
|
nscd_chkconfig_cmd('nscd')
|
|
except:
|
|
if not options.sssd:
|
|
print >>sys.stderr, "Failed to configure automatic startup of the NSCD daemon"
|
|
print >>sys.stderr, "Caching of users/groups will not be available after reboot"
|
|
else:
|
|
print >>sys.stderr, "Failed to disable NSCD daemon. Please disable it manually."
|
|
|
|
else:
|
|
# this is optional service, just log
|
|
logging.info("NSCD daemon is not installed, skip configuration")
|
|
|
|
# Modify nsswitch/pam stack
|
|
if options.sssd:
|
|
cmd = ["/usr/sbin/authconfig", "--enablesssd", "--enablesssdauth", "--update"]
|
|
message = "SSSD enabled"
|
|
else:
|
|
cmd = ["/usr/sbin/authconfig", "--enableldap", "--enableforcelegacy", "--update"]
|
|
message = "LDAP enabled"
|
|
|
|
if options.mkhomedir:
|
|
cmd.append("--enablemkhomedir")
|
|
run(cmd)
|
|
print message
|
|
|
|
#Modify pam to add pam_krb5
|
|
run(["/usr/sbin/authconfig", "--enablekrb5", "--update", "--nostart"])
|
|
print "Kerberos 5 enabled"
|
|
|
|
# Update non-SSSD LDAP configuration after authconfig calls as it would
|
|
# change its configuration otherways
|
|
if not options.sssd:
|
|
if configure_ldap_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options):
|
|
return 1
|
|
if configure_nslcd_conf(fstore, cli_basedn, cli_realm, cli_domain, cli_server, dnsok, options):
|
|
return 1
|
|
print "LDAP configured"
|
|
|
|
#Check that nss is working properly
|
|
if not options.on_master:
|
|
n = 0
|
|
found = False
|
|
# Loop for up to 5 seconds to see if nss is working properly.
|
|
# It can sometimes take a few seconds to connect to the remote
|
|
# provider.
|
|
while n < 5 and not found:
|
|
try:
|
|
run(["getent", "passwd", "admin"])
|
|
found = True
|
|
except Exception, e:
|
|
time.sleep(1)
|
|
n = n + 1
|
|
|
|
if not found:
|
|
print "nss_ldap is not able to use DNS discovery!"
|
|
print "Changing configuration to use hardcoded server name: " +cli_server
|
|
|
|
try:
|
|
hardcode_ldap_server(cli_server)
|
|
except Exception, e:
|
|
sys.exit("Adding hardcoded server name to /etc/ldap.conf failed: " + str(e))
|
|
|
|
if options.conf_ntp and not options.on_master:
|
|
if options.ntp_server:
|
|
ntp_server = options.ntp_server
|
|
else:
|
|
ntp_server = cli_server
|
|
ipaclient.ntpconf.config_ntp(ntp_server, fstore)
|
|
print "NTP enabled"
|
|
|
|
print "Client configuration complete."
|
|
|
|
return 0
|
|
|
|
try:
|
|
if __name__ == "__main__":
|
|
if not os.getegid() == 0:
|
|
sys.exit("\nYou must be root to run ipa-client-install.\n")
|
|
|
|
sys.exit(main())
|
|
except SystemExit, e:
|
|
sys.exit(e)
|
|
except KeyboardInterrupt:
|
|
sys.exit(1)
|
|
except RuntimeError, e:
|
|
sys.exit(e)
|