# # Copyright (C) 2015 FreeIPA Contributors see COPYING for license # import dns.exception as dnsexception import dns.name as dnsname import dns.resolver as dnsresolver import dns.reversename as dnsreversename import os import shutil import socket import sys import tempfile from ipapython import dogtag, ipautil, sysrestore from ipapython.dn import DN from ipapython.install import common, core from ipapython.install.common import step from ipapython.install.core import Knob from ipapython.ipa_log_manager import root_logger from ipaplatform import services from ipaplatform.tasks import tasks from ipaplatform.paths import paths from ipalib import api, certstore, constants, create_api, errors, x509 import ipaclient.ntpconf from ipaserver.install import ( bindinstance, ca, cainstance, certs, dns, dsinstance, httpinstance, installutils, kra, krbinstance, memcacheinstance, ntpinstance, otpdinstance, service) from ipaserver.install.installutils import create_replica_config from ipaserver.install.replication import ( ReplicationManager, replica_conn_check) DIRMAN_DN = DN(('cn', 'directory manager')) def get_dirman_password(): return installutils.read_password("Directory Manager (existing master)", confirm=False, validate=False) def make_pkcs12_info(directory, cert_name, password_name): """Make pkcs12_info :param directory: Base directory (config.dir) :param cert_name: Cert filename (e.g. "dscert.p12") :param password_name: Cert filename (e.g. "dirsrv_pin.txt") :return: a (full cert path, password) tuple, or None if cert is not found """ cert_path = os.path.join(directory, cert_name) if ipautil.file_exists(cert_path): password_file = os.path.join(directory, password_name) password = open(password_file).read().strip() return cert_path, password else: return None def install_replica_ds(config): dsinstance.check_ports() # if we have a pkcs12 file, create the cert db from # that. Otherwise the ds setup will create the CA # cert pkcs12_info = make_pkcs12_info(config.dir, "dscert.p12", "dirsrv_pin.txt") ds = dsinstance.DsInstance() ds.create_replica( realm_name=config.realm_name, master_fqdn=config.master_host_name, fqdn=config.host_name, domain_name=config.domain_name, dm_password=config.dirman_password, subject_base=config.subject_base, pkcs12_info=pkcs12_info, ca_is_configured=ipautil.file_exists(config.dir + "/cacert.p12"), ca_file=config.dir + "/ca.crt", ) return ds def install_krb(config, setup_pkinit=False): krb = krbinstance.KrbInstance() # pkinit files pkcs12_info = make_pkcs12_info(config.dir, "pkinitcert.p12", "pkinit_pin.txt") krb.create_replica(config.realm_name, config.master_host_name, config.host_name, config.domain_name, config.dirman_password, setup_pkinit, pkcs12_info) return krb def install_ca_cert(ldap, base_dn, realm, cafile): try: try: certs = certstore.get_ca_certs(ldap, base_dn, realm, False) except errors.NotFound: shutil.copy(cafile, constants.CACERT) else: certs = [c[0] for c in certs if c[2] is not False] x509.write_certificate_list(certs, constants.CACERT) os.chmod(constants.CACERT, 0o444) except Exception, e: print "error copying files: " + str(e) sys.exit(1) def install_http(config, auto_redirect): # if we have a pkcs12 file, create the cert db from # that. Otherwise the ds setup will create the CA # cert pkcs12_info = make_pkcs12_info(config.dir, "httpcert.p12", "http_pin.txt") memcache = memcacheinstance.MemcacheInstance() memcache.create_instance('MEMCACHE', config.host_name, config.dirman_password, ipautil.realm_to_suffix(config.realm_name)) http = httpinstance.HTTPInstance() http.create_instance( config.realm_name, config.host_name, config.domain_name, config.dirman_password, False, pkcs12_info, auto_redirect=auto_redirect, ca_file=config.dir + "/ca.crt", ca_is_configured=ipautil.file_exists(config.dir + "/cacert.p12")) # Now copy the autoconfiguration files try: if ipautil.file_exists(config.dir + "/preferences.html"): shutil.copy(config.dir + "/preferences.html", paths.PREFERENCES_HTML) if ipautil.file_exists(config.dir + "/configure.jar"): shutil.copy(config.dir + "/configure.jar", paths.CONFIGURE_JAR) except Exception, e: print "error copying files: " + str(e) sys.exit(1) http.setup_firefox_extension(config.realm_name, config.domain_name) return http def install_dns_records(config, options, remote_api): if not bindinstance.dns_container_exists( config.master_host_name, ipautil.realm_to_suffix(config.realm_name), dm_password=config.dirman_password): return try: bind = bindinstance.BindInstance(dm_password=config.dirman_password, api=remote_api) for ip in config.ips: reverse_zone = bindinstance.find_reverse_zone(ip, remote_api) bind.add_master_dns_records(config.host_name, str(ip), config.realm_name, config.domain_name, reverse_zone, not options.no_ntp, options.setup_ca) except errors.NotFound, e: root_logger.debug('Replica DNS records could not be added ' 'on master: %s', str(e)) # we should not fail here no matter what except Exception, e: root_logger.info('Replica DNS records could not be added ' 'on master: %s', str(e)) def check_dirsrv(): (ds_unsecure, ds_secure) = dsinstance.check_ports() if not ds_unsecure or not ds_secure: print "IPA requires ports 389 and 636 for the Directory Server." print "These are currently in use:" if not ds_unsecure: print "\t389" if not ds_secure: print "\t636" sys.exit(1) def check_dns_resolution(host_name, dns_servers): """Check forward and reverse resolution of host_name using dns_servers """ # Point the resolver at specified DNS server server_ips = [] for dns_server in dns_servers: try: server_ips = list( a[4][0] for a in socket.getaddrinfo(dns_server, None)) except socket.error: pass else: break if not server_ips: root_logger.error( 'Could not resolve any DNS server hostname: %s', dns_servers) return False resolver = dnsresolver.Resolver() resolver.nameservers = server_ips root_logger.debug('Search DNS server %s (%s) for %s', dns_server, server_ips, host_name) # Get IP addresses of host_name addresses = set() for rtype in 'A', 'AAAA': try: result = resolver.query(host_name, rtype) except dnsexception.DNSException: rrset = [] else: rrset = result.rrset if rrset: addresses.update(r.address for r in result.rrset) if not addresses: root_logger.error( 'Could not resolve hostname %s using DNS. ' 'Clients may not function properly. ' 'Please check your DNS setup. ' '(Note that this check queries IPA DNS directly and ' 'ignores /etc/hosts.)', host_name) return False no_errors = True # Check each of the IP addresses checked = set() for address in addresses: if address in checked: continue checked.add(address) try: root_logger.debug('Check reverse address %s (%s)', address, host_name) revname = dnsreversename.from_address(address) rrset = resolver.query(revname, 'PTR').rrset except Exception, e: root_logger.debug('Check failed: %s %s', type(e).__name__, e) root_logger.error( 'Reverse DNS resolution of address %s (%s) failed. ' 'Clients may not function properly. ' 'Please check your DNS setup. ' '(Note that this check queries IPA DNS directly and ' 'ignores /etc/hosts.)', address, host_name) no_errors = False else: host_name_obj = dnsname.from_text(host_name) if rrset: names = [r.target.to_text() for r in rrset] else: names = [] root_logger.debug( 'Address %s resolves to: %s. ', address, ', '.join(names)) if not rrset or not any( r.target == host_name_obj for r in rrset): root_logger.error( 'The IP address %s of host %s resolves to: %s. ' 'Clients may not function properly. ' 'Please check your DNS setup. ' '(Note that this check queries IPA DNS directly and ' 'ignores /etc/hosts.)', address, host_name, ', '.join(names)) no_errors = False return no_errors def remove_replica_info_dir(installer): # always try to remove decrypted replica file try: if installer._top_dir is not None: shutil.rmtree(installer._top_dir) except OSError: pass def common_cleanup(func): def decorated(installer): try: try: func(installer) except BaseException: remove_replica_info_dir(installer) raise except KeyboardInterrupt: sys.exit(1) except Exception: print( "Your system may be partly configured.\n" "Run /usr/sbin/ipa-server-install --uninstall to clean up.\n") raise return decorated @common_cleanup def install_check(installer): options = installer filename = installer.replica_file tasks.check_selinux_status() client_fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE) if client_fstore.has_files(): sys.exit("IPA client is already configured on this system.\n" "Please uninstall it first before configuring the replica, " "using 'ipa-client-install --uninstall'.") sstore = sysrestore.StateFile(paths.SYSRESTORE) fstore = sysrestore.FileStore(paths.SYSRESTORE) # Check to see if httpd is already configured to listen on 443 if httpinstance.httpd_443_configured(): sys.exit("Aborting installation") check_dirsrv() if not options.no_ntp: try: ipaclient.ntpconf.check_timedate_services() except ipaclient.ntpconf.NTPConflictingService, e: print("WARNING: conflicting time&date synchronization service '%s'" " will" % e.conflicting_service) print "be disabled in favor of ntpd" print "" except ipaclient.ntpconf.NTPConfigurationError: pass # get the directory manager password dirman_password = options.password if not dirman_password: try: dirman_password = get_dirman_password() except KeyboardInterrupt: sys.exit(0) if dirman_password is None: sys.exit("Directory Manager password required") config = create_replica_config(dirman_password, filename, options) installer._top_dir = config.top_dir config.setup_ca = options.setup_ca config.setup_kra = options.setup_kra # Create the management framework config file # Note: We must do this before bootstraping and finalizing ipalib.api old_umask = os.umask(0o22) # must be readable for httpd try: fd = open(paths.IPA_DEFAULT_CONF, "w") fd.write("[global]\n") fd.write("host=%s\n" % config.host_name) fd.write("basedn=%s\n" % str(ipautil.realm_to_suffix(config.realm_name))) fd.write("realm=%s\n" % config.realm_name) fd.write("domain=%s\n" % config.domain_name) fd.write("xmlrpc_uri=https://%s/ipa/xml\n" % ipautil.format_netloc(config.host_name)) fd.write("ldap_uri=ldapi://%%2fvar%%2frun%%2fslapd-%s.socket\n" % installutils.realm_to_serverid(config.realm_name)) if ipautil.file_exists(config.dir + "/cacert.p12"): fd.write("enable_ra=True\n") fd.write("ra_plugin=dogtag\n") fd.write("dogtag_version=%s\n" % dogtag.install_constants.DOGTAG_VERSION) else: fd.write("enable_ra=False\n") fd.write("ra_plugin=none\n") fd.write("mode=production\n") fd.close() finally: os.umask(old_umask) api.bootstrap(in_server=True, context='installer') api.finalize() installutils.verify_fqdn(config.master_host_name, options.no_host_dns) cafile = config.dir + "/ca.crt" if not ipautil.file_exists(cafile): raise RuntimeError("CA cert file is not available. Please run " "ipa-replica-prepare to create a new replica file.") ldapuri = 'ldaps://%s' % ipautil.format_netloc(config.master_host_name) remote_api = create_api(mode=None) remote_api.bootstrap(in_server=True, context='installer', ldap_uri=ldapuri) remote_api.finalize() conn = remote_api.Backend.ldap2 replman = None try: # Try out the password conn.connect(bind_dn=DIRMAN_DN, bind_pw=config.dirman_password, tls_cacertfile=cafile) replman = ReplicationManager(config.realm_name, config.master_host_name, config.dirman_password) # Check that we don't already have a replication agreement if replman.get_replication_agreement(config.host_name): root_logger.info('Error: A replication agreement for this ' 'host already exists.') print('A replication agreement for this host already exists. ' 'It needs to be removed.') print "Run this on the master that generated the info file:" print(" %% ipa-replica-manage del %s --force" % config.host_name) sys.exit(3) # Detect the current domain level try: current = remote_api.Command['domainlevel_get']()['result'] except errors.NotFound: # If we're joining an older master, domain entry is not # available current = 0 # Detect if current level is out of supported range # for this IPA version under_lower_bound = current < constants.MIN_DOMAIN_LEVEL above_upper_bound = current > constants.MAX_DOMAIN_LEVEL if under_lower_bound or above_upper_bound: message = ("This version of FreeIPA does not support " "the Domain Level which is currently set for " "this domain. The Domain Level needs to be " "raised before installing a replica with " "this version is allowed to be installed " "within this domain.") root_logger.error(message) print(message) sys.exit(3) # Check pre-existing host entry try: entry = conn.find_entries(u'fqdn=%s' % config.host_name, ['fqdn'], DN(api.env.container_host, api.env.basedn)) except errors.NotFound: pass else: root_logger.info('Error: Host %s already exists on the master ' 'server.' % config.host_name) print('The host %s already exists on the master server.' % config.host_name) print "You should remove it before proceeding:" print " %% ipa host-del %s" % config.host_name sys.exit(3) dns_masters = remote_api.Object['dnsrecord'].get_dns_masters() if dns_masters: if not options.no_host_dns: master = config.master_host_name root_logger.debug('Check forward/reverse DNS resolution') resolution_ok = ( check_dns_resolution(master, dns_masters) and check_dns_resolution(config.host_name, dns_masters)) if not resolution_ok and installer.interactive: if not ipautil.user_input("Continue?", False): sys.exit(0) else: root_logger.debug('No IPA DNS servers, ' 'skipping forward/reverse resolution check') if options.setup_ca: options.realm_name = config.realm_name options.host_name = config.host_name options.subject = config.subject_base ca.install_check(False, config, options) if config.setup_kra: try: kra.install_check(remote_api, config, options) except RuntimeError as e: print str(e) sys.exit(1) except errors.ACIError: sys.exit("\nThe password provided is incorrect for LDAP server " "%s" % config.master_host_name) except errors.LDAPError: sys.exit("\nUnable to connect to LDAP server %s" % config.master_host_name) finally: if replman and replman.conn: replman.conn.unbind() if conn.isconnected(): conn.disconnect() if options.setup_dns: dns.install_check(False, True, options, config.host_name) else: config.ips = installutils.get_server_ip_address( config.host_name, fstore, not installer.interactive, False, options.ip_addresses) # check connection if not options.skip_conncheck: replica_conn_check( config.master_host_name, config.host_name, config.realm_name, options.setup_ca, config.ca_ds_port, options.admin_password) installer._remote_api = remote_api installer._fstore = fstore installer._sstore = sstore installer._config = config @common_cleanup def install(installer): options = installer fstore = installer._fstore sstore = installer._sstore config = installer._config dogtag_constants = dogtag.install_constants # Create DS user/group if it doesn't exist yet dsinstance.create_ds_user() cafile = config.dir + "/ca.crt" remote_api = installer._remote_api conn = remote_api.Backend.ldap2 try: conn.connect(bind_dn=DIRMAN_DN, bind_pw=config.dirman_password, tls_cacertfile=cafile) # Install CA cert so that we can do SSL connections with ldap install_ca_cert(conn, api.env.basedn, api.env.realm, cafile) # Configure ntpd if not options.no_ntp: ipaclient.ntpconf.force_ntpd(sstore) ntp = ntpinstance.NTPInstance() ntp.create_instance() # Configure dirsrv ds = install_replica_ds(config) # Always try to install DNS records install_dns_records(config, options, remote_api) finally: if conn.isconnected(): conn.disconnect() options.dm_password = config.dirman_password if config.setup_ca: options.realm_name = config.realm_name options.domain_name = config.domain_name options.host_name = config.host_name ca.install(False, config, options) krb = install_krb(config, setup_pkinit=not options.no_pkinit) http = install_http(config, auto_redirect=not options.no_ui_redirect) otpd = otpdinstance.OtpdInstance() otpd.create_instance('OTPD', config.host_name, config.dirman_password, ipautil.realm_to_suffix(config.realm_name)) CA = cainstance.CAInstance( config.realm_name, certs.NSS_DIR, dogtag_constants=dogtag_constants) CA.dm_password = config.dirman_password CA.configure_certmonger_renewal() CA.import_ra_cert(config.dir + "/ra.p12") CA.fix_ra_perms() # The DS instance is created before the keytab, add the SSL cert we # generated ds.add_cert_to_service() # Apply any LDAP updates. Needs to be done after the replica is synced-up service.print_msg("Applying LDAP updates") ds.apply_updates() if options.setup_kra: kra.install(api, config, options) else: service.print_msg("Restarting the directory server") ds.restart() service.print_msg("Restarting the KDC") krb.restart() if config.setup_ca: dogtag_service = services.knownservices[dogtag_constants.SERVICE_NAME] dogtag_service.restart(dogtag_constants.PKI_INSTANCE_NAME) if options.setup_dns: api.Backend.ldap2.connect(autobind=True) dns.install(False, True, options) # Restart httpd to pick up the new IPA configuration service.print_msg("Restarting the web server") http.restart() # Call client install script try: args = [paths.IPA_CLIENT_INSTALL, "--on-master", "--unattended", "--domain", config.domain_name, "--server", config.host_name, "--realm", config.realm_name] if options.no_dns_sshfp: args.append("--no-dns-sshfp") if options.ssh_trust_dns: args.append("--ssh-trust-dns") if options.no_ssh: args.append("--no-ssh") if options.no_sshd: args.append("--no-sshd") if options.mkhomedir: args.append("--mkhomedir") ipautil.run(args) except Exception, e: print "Configuration of client side components failed!" print "ipa-client-install returned: " + str(e) raise RuntimeError("Failed to configure the client") ds.replica_populate() # Everything installed properly, activate ipa service. services.knownservices.ipa.enable() remove_replica_info_dir(installer) class ReplicaCA(common.Installable, core.Group, core.Composite): description = "certificate system" no_pkinit = Knob( bool, False, description="disables pkinit setup steps", ) skip_schema_check = Knob( bool, False, description="skip check for updated CA DS schema on the remote master", ) class ReplicaDNS(common.Installable, core.Group, core.Composite): description = "DNS" setup_dns = Knob( bool, False, description="configure bind with our zone", ) forwarders = Knob( (list, 'ip'), None, description=("Add a DNS forwarder. This option can be used multiple " "times"), cli_name='forwarder', ) no_forwarders = Knob( bool, False, description="Do not add any DNS forwarders, use root servers instead", ) reverse_zones = Knob( (list, str), [], description=("The reverse DNS zone to use. This option can be used " "multiple times"), cli_name='reverse-zone', ) no_reverse = Knob( bool, False, description="Do not create new reverse DNS zone", ) no_dnssec_validation = Knob( bool, False, description="Disable DNSSEC validation", ) dnssec_master = Knob( bool, False, initializable=False, description="Setup server to be DNSSEC key master", ) disable_dnssec_master = Knob( bool, False, initializable=False, description="Disable the DNSSEC master on this server", ) force = Knob( bool, False, initializable=False, description="Force install", ) kasp_db_file = Knob( str, None, initializable=False, description="Copy OpenDNSSEC metadata from the specified file (will " "not create a new kasp.db file)", ) no_host_dns = Knob( bool, False, description="Do not use DNS for hostname lookup during installation", ) no_dns_sshfp = Knob( bool, False, description="do not automatically create DNS SSHFP records", ) class Replica(common.Installable, common.Interactive, core.Composite): replica_file = Knob( str, None, description="a file generated by ipa-replica-prepare", ) setup_ca = Knob( bool, False, initializable=False, description="configure a dogtag CA", ) setup_kra = Knob( bool, False, initializable=False, description="configure a dogtag KRA", ) ip_addresses = Knob( (list, 'ip-local'), None, description=("Replica server IP Address. This option can be used " "multiple times"), cli_name='ip-address', ) password = Knob( str, None, sensitive=True, description="Directory Manager (existing master) password", cli_short_name='p', ) admin_password = Knob( str, None, sensitive=True, description="Admin user Kerberos password used for connection check", cli_short_name='w', ) mkhomedir = Knob( bool, False, description="create home directories for users on their first login", ) no_ntp = Knob( bool, False, description="do not configure ntp", ) no_ui_redirect = Knob( bool, False, description="Do not automatically redirect to the Web UI", ) ssh_trust_dns = Knob( bool, False, description="configure OpenSSH client to trust DNS SSHFP records", ) no_ssh = Knob( bool, False, description="do not configure OpenSSH client", ) no_sshd = Knob( bool, False, description="do not configure OpenSSH server", ) skip_conncheck = Knob( bool, False, description="skip connection check to remote master", ) def __init__(self, **kwargs): super(Replica, self).__init__(**kwargs) self._top_dir = None self._config = None #pylint: disable=no-member if self.replica_file is None: raise RuntimeError( "you must provide a file generated by ipa-replica-prepare") if not ipautil.file_exists(self.replica_file): raise RuntimeError( "Replica file %s does not exist" % self.replica_file) if not self.dns.setup_dns: if self.dns.forwarders: raise RuntimeError( "You cannot specify a --forwarder option without the " "--setup-dns option") if self.dns.no_forwarders: raise RuntimeError( "You cannot specify a --no-forwarders option without the " "--setup-dns option") if self.dns.reverse_zones: raise RuntimeError( "You cannot specify a --reverse-zone option without the " "--setup-dns option") if self.dns.no_reverse: raise RuntimeError( "You cannot specify a --no-reverse option without the " "--setup-dns option") if self.dns.no_dnssec_validation: raise RuntimeError( "You cannot specify a --no-dnssec-validation option " "without the --setup-dns option") elif self.dns.forwarders and self.dns.no_forwarders: raise RuntimeError( "You cannot specify a --forwarder option together with " "--no-forwarders") elif not self.dns.forwarders and not self.dns.no_forwarders: raise RuntimeError( "You must specify at least one --forwarder option or " "--no-forwarders option") elif self.dns.reverse_zones and self.dns.no_reverse: raise RuntimeError( "You cannot specify a --reverse-zone option together with " "--no-reverse") # Automatically disable pkinit w/ dogtag until that is supported self.ca.no_pkinit = True self.external_ca = False self.external_cert_files = None self.no_pkinit = self.ca.no_pkinit self.skip_schema_check = self.ca.skip_schema_check self.setup_dns = self.dns.setup_dns self.forwarders = self.dns.forwarders self.no_forwarders = self.dns.no_forwarders self.reverse_zones = self.dns.reverse_zones self.no_reverse = self.dns.no_reverse self.no_dnssec_validation = self.dns.no_dnssec_validation self.dnssec_master = self.dns.dnssec_master self.disable_dnssec_master = self.dns.disable_dnssec_master self.kasp_db_file = self.dns.kasp_db_file self.force = self.dns.force self.zonemgr = None self.no_host_dns = self.dns.no_host_dns self.no_dns_sshfp = self.dns.no_dns_sshfp self.unattended = not self.interactive @step() def main(self): install_check(self) yield install(self) ca = core.Component(ReplicaCA) dns = core.Component(ReplicaDNS)