# Authors: # Petr Viktorin # # Copyright (C) 2013 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 . """Common tasks for FreeIPA integration tests""" from __future__ import absolute_import import logging import os from io import StringIO import textwrap import re import collections import itertools import tempfile import time import dns from ldif import LDIFWriter import pytest from SSSDConfig import SSSDConfig from cryptography.hazmat.primitives import serialization from cryptography.hazmat.primitives.asymmetric import rsa from cryptography.hazmat.backends import default_backend from ipapython import ipautil from ipaplatform.paths import paths from ipapython.dn import DN from ipalib import errors from ipalib.util import get_reverse_zone_default, verify_host_resolvable from ipalib.constants import ( DEFAULT_CONFIG, DOMAIN_SUFFIX_NAME, DOMAIN_LEVEL_0, MIN_DOMAIN_LEVEL, MAX_DOMAIN_LEVEL ) from ipatests.create_external_ca import ExternalCA from .env_config import env_to_script from .host import Host logger = logging.getLogger(__name__) def setup_server_logs_collecting(host): """ This function setup logs to be collected on host. We should collect all possible logs that may be helpful to debug IPA server """ # dirsrv logs inst = host.domain.realm.replace('.', '-') host.collect_log(paths.SLAPD_INSTANCE_ERROR_LOG_TEMPLATE % inst) host.collect_log(paths.SLAPD_INSTANCE_ACCESS_LOG_TEMPLATE % inst) # IPA install logs host.collect_log(paths.IPASERVER_INSTALL_LOG) host.collect_log(paths.IPASERVER_UNINSTALL_LOG) host.collect_log(paths.IPACLIENT_INSTALL_LOG) host.collect_log(paths.IPACLIENT_UNINSTALL_LOG) host.collect_log(paths.IPAREPLICA_INSTALL_LOG) host.collect_log(paths.IPAREPLICA_CONNCHECK_LOG) host.collect_log(paths.IPAREPLICA_CA_INSTALL_LOG) host.collect_log(paths.IPASERVER_KRA_INSTALL_LOG) host.collect_log(paths.IPA_CUSTODIA_AUDIT_LOG) # IPA uninstall logs host.collect_log(paths.IPACLIENT_UNINSTALL_LOG) # IPA backup and restore logs host.collect_log(paths.IPARESTORE_LOG) host.collect_log(paths.IPABACKUP_LOG) # kerberos related logs host.collect_log(paths.KADMIND_LOG) host.collect_log(paths.KRB5KDC_LOG) # httpd logs host.collect_log(paths.VAR_LOG_HTTPD_ERROR) # dogtag logs host.collect_log(os.path.join(paths.VAR_LOG_PKI_DIR)) # selinux logs host.collect_log(paths.VAR_LOG_AUDIT) # SSSD debugging must be set after client is installed (function # setup_sssd_debugging) def collect_logs(func): def wrapper(*args): try: func(*args) finally: if hasattr(args[0], 'master'): setup_server_logs_collecting(args[0].master) if hasattr(args[0], 'replicas') and args[0].replicas: for replica in args[0].replicas: setup_server_logs_collecting(replica) if hasattr(args[0], 'clients') and args[0].clients: for client in args[0].clients: setup_server_logs_collecting(client) return wrapper def check_arguments_are(slice, instanceof): """ :param: slice - tuple of integers denoting the beginning and the end of argument list to be checked :param: instanceof - name of the class the checked arguments should be instances of Example: @check_arguments_are((1, 3), int) will check that the second and third arguments are integers """ def wrapper(func): def wrapped(*args, **kwargs): for i in args[slice[0]:slice[1]]: assert isinstance(i, instanceof), "Wrong type: %s: %s" % (i, type(i)) return func(*args, **kwargs) return wrapped return wrapper def prepare_reverse_zone(host, ip): zone = get_reverse_zone_default(ip) result = host.run_command(["ipa", "dnszone-add", zone], raiseonerr=False) if result.returncode > 0: logger.warning("%s", result.stderr_text) return zone, result.returncode def prepare_host(host): if isinstance(host, Host): env_filename = os.path.join(host.config.test_dir, 'env.sh') # First we try to run simple echo command to test the connection host.run_command(['true'], set_env=False) host.collect_log(env_filename) try: host.transport.mkdir_recursive(host.config.test_dir) except IOError: # The folder already exists pass host.put_file_contents(env_filename, env_to_script(host.to_env())) def rpcbind_kadmin_workaround(host): """Restart rpcbind in case it blocks 749/UDP See https://pagure.io/freeipa/issue/7769 See https://bugzilla.redhat.com/show_bug.cgi?id=1592883 """ for _i in range(5): result = host.run_command(['ss', '-ulnp', 'sport', '=', '749']) if 'rpcbind' in result.stdout_text: logger.error("rpcbind blocks 749/UDP, restarting service") host.run_command(['systemctl', 'restart', 'rpcbind.service']) time.sleep(2) else: break def apply_common_fixes(host): prepare_host(host) fix_hostname(host) rpcbind_kadmin_workaround(host) def allow_sync_ptr(host): kinit_admin(host) host.run_command(["ipa", "dnsconfig-mod", "--allow-sync-ptr=true"], raiseonerr=False) def backup_file(host, filename): if host.transport.file_exists(filename): backupname = os.path.join(host.config.test_dir, 'file_backup', filename.lstrip('/')) host.transport.mkdir_recursive(os.path.dirname(backupname)) host.run_command(['cp', '-af', filename, backupname]) return True else: rmname = os.path.join(host.config.test_dir, 'file_remove') host.run_command('echo %s >> %s' % ( ipautil.shell_quote(filename), ipautil.shell_quote(rmname))) host.transport.mkdir_recursive(os.path.dirname(rmname)) return False def fix_hostname(host): backup_file(host, paths.ETC_HOSTNAME) host.put_file_contents(paths.ETC_HOSTNAME, host.hostname + '\n') host.run_command(['hostname', host.hostname]) backupname = os.path.join(host.config.test_dir, 'backup_hostname') host.run_command('hostname > %s' % ipautil.shell_quote(backupname)) def host_service_active(host, service): res = host.run_command(['systemctl', 'is-active', '--quiet', service], raiseonerr=False) return res.returncode == 0 def fix_apache_semaphores(master): systemd_available = master.transport.file_exists(paths.SYSTEMCTL) if systemd_available: master.run_command(['systemctl', 'stop', 'httpd'], raiseonerr=False) else: master.run_command([paths.SBIN_SERVICE, 'httpd', 'stop'], raiseonerr=False) master.run_command('for line in `ipcs -s | grep apache | cut -d " " -f 2`; ' 'do ipcrm -s $line; done', raiseonerr=False) def unapply_fixes(host): restore_files(host) restore_hostname(host) # Clean ccache to prevent issues like 5741 host.run_command(['kdestroy', '-A'], raiseonerr=False) # Clean up the test directory host.run_command(['rm', '-rvf', host.config.test_dir]) def restore_files(host): backupname = os.path.join(host.config.test_dir, 'file_backup') rmname = os.path.join(host.config.test_dir, 'file_remove') # Prepare command for restoring context of the backed-up files sed_remove_backupdir = 's/%s//g' % backupname.replace('/', r'\/') restorecon_command = ( "find %s | " "sed '%s' | " "sed '/^$/d' | " "xargs -d '\n' " "/sbin/restorecon -v" % (backupname, sed_remove_backupdir)) # Prepare command for actual restoring of the backed up files copyfiles_command = 'if [ -d %(dir)s/ ]; then cp -arvf %(dir)s/* /; fi' % { 'dir': ipautil.shell_quote(backupname)} # Run both commands in one session. For more information, see: # https://fedorahosted.org/freeipa/ticket/4133 host.run_command('%s ; (%s ||:)' % (copyfiles_command, restorecon_command)) # Remove all the files that did not exist and were 'backed up' host.run_command(['xargs', '-d', r'\n', '-a', rmname, 'rm', '-vf'], raiseonerr=False) host.run_command(['rm', '-rvf', backupname, rmname], raiseonerr=False) def restore_hostname(host): backupname = os.path.join(host.config.test_dir, 'backup_hostname') try: hostname = host.get_file_contents(backupname, encoding='utf-8') except IOError: logger.debug('No hostname backed up on %s', host.hostname) else: host.run_command(['hostname', hostname.strip()]) host.run_command(['rm', backupname]) def enable_replication_debugging(host, log_level=0): logger.info('Set LDAP debug level') logging_ldif = textwrap.dedent(""" dn: cn=config changetype: modify replace: nsslapd-errorlog-level nsslapd-errorlog-level: {log_level} """.format(log_level=log_level)) host.run_command(['ldapmodify', '-x', '-D', str(host.config.dirman_dn), '-w', host.config.dirman_password, '-h', host.hostname], stdin_text=logging_ldif) def set_default_ttl_for_ipa_dns_zone(host, raiseonerr=True): args = [ 'ipa', 'dnszone-mod', host.domain.name, '--default-ttl', '1', '--ttl', '1' ] result = host.run_command(args, raiseonerr=raiseonerr, stdin_text=None) if result.returncode != 0: logger.info('Failed to set TTL and default TTL for DNS zone %s to 1', host.domain.name) def install_master(host, setup_dns=True, setup_kra=False, setup_adtrust=False, extra_args=(), domain_level=None, unattended=True, external_ca=False, stdin_text=None, raiseonerr=True): if domain_level is None: domain_level = host.config.domain_level check_domain_level(domain_level) setup_server_logs_collecting(host) apply_common_fixes(host) fix_apache_semaphores(host) args = [ 'ipa-server-install', '-n', host.domain.name, '-r', host.domain.realm, '-p', host.config.dirman_password, '-a', host.config.admin_password, "--domain-level=%i" % domain_level, ] if unattended: args.append('-U') if setup_dns: args.extend([ '--setup-dns', '--forwarder', host.config.dns_forwarder, '--auto-reverse' ]) if setup_kra: args.append('--setup-kra') if setup_adtrust: args.append('--setup-adtrust') if external_ca: args.append('--external-ca') args.extend(extra_args) result = host.run_command(args, raiseonerr=raiseonerr, stdin_text=stdin_text) if result.returncode == 0 and not external_ca: # external CA step 1 doesn't have DS and KDC fully configured, yet enable_replication_debugging(host) setup_sssd_debugging(host) kinit_admin(host) if setup_dns: # fixup DNS zone default TTL for IPA DNS zone # For tests we should not wait too long set_default_ttl_for_ipa_dns_zone(host, raiseonerr=raiseonerr) return result def check_domain_level(domain_level): if domain_level < MIN_DOMAIN_LEVEL: pytest.fail( "Domain level {} not supported, min level is {}.".format( domain_level, MIN_DOMAIN_LEVEL) ) if domain_level > MAX_DOMAIN_LEVEL: pytest.fail( "Domain level {} not supported, max level is {}.".format( domain_level, MAX_DOMAIN_LEVEL) ) def domainlevel(host): """ Dynamically determines the domainlevel on master. Needed for scenarios when domainlevel is changed during the test execution. Sometimes the master is even not installed. Please refer to ca-less tests, where we call tasks.uninstall_master after every test while a lot of them make sure that the server installation fails. Therefore we need to not raise on failures here. """ kinit_admin(host, raiseonerr=False) result = host.run_command(['ipa', 'domainlevel-get'], raiseonerr=False) level = MIN_DOMAIN_LEVEL domlevel_re = re.compile(r'.*(\d)') if result.returncode == 0: # "domainlevel-get" command doesn't exist on ipa versions prior to 4.3 level = int(domlevel_re.findall(result.stdout_text)[0]) check_domain_level(level) return level def master_authoritative_for_client_domain(master, client): zone = ".".join(client.hostname.split('.')[1:]) result = master.run_command(["ipa", "dnszone-show", zone], raiseonerr=False) return result.returncode == 0 def _config_replica_resolvconf_with_master_data(master, replica): """ Configure replica /etc/resolv.conf to use master as DNS server """ content = ('search {domain}\nnameserver {master_ip}' .format(domain=master.domain.name, master_ip=master.ip)) replica.put_file_contents(paths.RESOLV_CONF, content) def install_replica(master, replica, setup_ca=True, setup_dns=False, setup_kra=False, setup_adtrust=False, extra_args=(), domain_level=None, unattended=True, stdin_text=None, raiseonerr=True): if domain_level is None: domain_level = domainlevel(master) check_domain_level(domain_level) apply_common_fixes(replica) setup_server_logs_collecting(replica) allow_sync_ptr(master) # Otherwise ipa-client-install would not create a PTR # and replica installation would fail args = ['ipa-replica-install', '-p', replica.config.dirman_password, '-w', replica.config.admin_password] if unattended: args.append('-U') if setup_ca: args.append('--setup-ca') if setup_kra: assert setup_ca, "CA must be installed on replica with KRA" args.append('--setup-kra') if setup_dns: args.extend([ '--setup-dns', '--forwarder', replica.config.dns_forwarder ]) if setup_adtrust: args.append('--setup-adtrust') if master_authoritative_for_client_domain(master, replica): args.extend(['--ip-address', replica.ip]) args.extend(extra_args) # install client on a replica machine and then promote it to replica install_client(master, replica) fix_apache_semaphores(replica) args.extend(['-r', replica.domain.realm]) result = replica.run_command(args, raiseonerr=raiseonerr, stdin_text=stdin_text) if result.returncode == 0: enable_replication_debugging(replica) setup_sssd_debugging(replica) kinit_admin(replica) return result def install_client(master, client, extra_args=(), user=None, password=None): client.collect_log(paths.IPACLIENT_INSTALL_LOG) apply_common_fixes(client) allow_sync_ptr(master) # Now, for the situations where a client resides in a different subnet from # master, we need to explicitly tell master to create a reverse zone for # the client and enable dynamic updates for this zone. zone, error = prepare_reverse_zone(master, client.ip) if not error: master.run_command(["ipa", "dnszone-mod", zone, "--dynamic-update=TRUE"]) if user is None: user = client.config.admin_name if password is None: password = client.config.admin_password client.run_command(['ipa-client-install', '-U', '--domain', client.domain.name, '--realm', client.domain.realm, '-p', user, '-w', password, '--server', master.hostname] + list(extra_args)) setup_sssd_debugging(client) kinit_admin(client) def install_adtrust(host): """ Runs ipa-adtrust-install on the client and generates SIDs for the entries. Configures the compat tree for the legacy clients. """ setup_server_logs_collecting(host) kinit_admin(host) host.run_command(['ipa-adtrust-install', '-U', '--enable-compat', '--netbios-name', host.netbios, '-a', host.config.admin_password, '--add-sids']) # Restart named because it lost connection to dirsrv # (Directory server restarts during the ipa-adtrust-install) # we use two services named and named-pkcs11, # if named is masked restart named-pkcs11 result = host.run_command(['systemctl', 'is-enabled', 'named'], raiseonerr=False) if result.stdout_text.startswith("masked"): host.run_command(['systemctl', 'restart', 'named-pkcs11']) else: host.run_command(['systemctl', 'restart', 'named']) # Check that named is running and has loaded the information from LDAP dig_command = ['dig', 'SRV', '+short', '@localhost', '_ldap._tcp.%s' % host.domain.name] dig_output = '0 100 389 %s.' % host.hostname dig_test = lambda x: re.search(re.escape(dig_output), x) run_repeatedly(host, dig_command, test=dig_test) def configure_dns_for_trust(master, ad): """ This method is intentionally left empty. Originally it served for DNS configuration on IPA master according to the relationship of the IPA's and AD's domains. """ pass def establish_trust_with_ad(master, ad_domain, extra_args=()): """ Establishes trust with Active Directory. Trust type is detected depending on the presence of SfU (Services for Unix) support on the AD. Use extra arguments to pass extra arguments to the trust-add command, such as --range-type="ipa-ad-trust" to enforce a particular range type. """ # Force KDC to reload MS-PAC info by trying to get TGT for HTTP master.run_command(['kinit', '-kt', paths.HTTP_KEYTAB, 'HTTP/%s' % master.hostname]) master.run_command(['systemctl', 'restart', 'krb5kdc.service']) master.run_command(['kdestroy', '-A']) kinit_admin(master) master.run_command(['klist']) master.run_command(['smbcontrol', 'all', 'debug', '100']) run_repeatedly(master, ['ipa', 'trust-add', '--type', 'ad', ad_domain, '--admin', 'Administrator', '--password'] + list(extra_args), stdin_text=master.config.ad_admin_password) master.run_command(['smbcontrol', 'all', 'debug', '1']) clear_sssd_cache(master) master.run_command(['systemctl', 'restart', 'krb5kdc.service']) time.sleep(60) def remove_trust_with_ad(master, ad_domain): """ Removes trust with Active Directory. Also removes the associated ID range. """ kinit_admin(master) # Remove the trust master.run_command(['ipa', 'trust-del', ad_domain]) # Remove the range range_name = ad_domain.upper() + '_id_range' master.run_command(['ipa', 'idrange-del', range_name]) remove_trust_info_from_ad(master, ad_domain) def remove_trust_info_from_ad(master, ad_domain): # Remove record about trust from AD master.run_command(['rpcclient', ad_domain, '-U\\Administrator%{}'.format( master.config.ad_admin_password), '-c', 'deletetrustdom {}'.format(master.domain.name)], raiseonerr=False) def configure_auth_to_local_rule(master, ad): """ Configures auth_to_local rule in /etc/krb5.conf """ section_identifier = " %s = {" % master.domain.realm line1 = (" auth_to_local = RULE:[1:$1@$0](^.*@%s$)s/@%s/@%s/" % (ad.domain.realm, ad.domain.realm, ad.domain.name)) line2 = " auth_to_local = DEFAULT" krb5_conf_content = master.get_file_contents(paths.KRB5_CONF) krb5_lines = [line.rstrip() for line in krb5_conf_content.split('\n')] realm_section_index = krb5_lines.index(section_identifier) krb5_lines.insert(realm_section_index + 1, line1) krb5_lines.insert(realm_section_index + 2, line2) krb5_conf_new_content = '\n'.join(krb5_lines) master.put_file_contents(paths.KRB5_CONF, krb5_conf_new_content) master.run_command(['systemctl', 'restart', 'sssd']) def setup_sssd_debugging(host): """ Sets debug level to 7 in each section of sssd.conf file. """ # Set debug level in each section of sssd.conf file to 7 # First, remove any previous occurences host.run_command(['sed', '-i', '/debug_level = 7/d', paths.SSSD_CONF], raiseonerr=False) # Add the debug directive to each section host.run_command(['sed', '-i', r'/\[*\]/ a\debug_level = 7', paths.SSSD_CONF], raiseonerr=False) host.collect_log(os.path.join(paths.VAR_LOG_SSSD_DIR)) # Clear the cache and restart SSSD clear_sssd_cache(host) def modify_sssd_conf(host, domain, mod_dict, provider='ipa', provider_subtype=None): """ modify options in a single domain section of host's sssd.conf :param host: multihost.Host object :param domain: domain section name to modify :param mod_dict: dictionary of options which will be passed to SSSDDomain.set_option(). To remove an option specify its value as None :param provider: provider backend to set. Defaults to ipa :param provider_subtype: backend subtype (e.g. id or sudo), will be added to the domain config if not present """ fd, temp_config_file = tempfile.mkstemp() os.close(fd) try: current_config = host.transport.get_file_contents(paths.SSSD_CONF) with open(temp_config_file, 'wb') as f: f.write(current_config) sssd_config = SSSDConfig() sssd_config.import_config(temp_config_file) sssd_domain = sssd_config.get_domain(domain) if provider_subtype is not None: sssd_domain.add_provider(provider, provider_subtype) for m in mod_dict: sssd_domain.set_option(m, mod_dict[m]) sssd_config.save_domain(sssd_domain) new_config = sssd_config.dump(sssd_config.opts).encode('utf-8') host.transport.put_file_contents(paths.SSSD_CONF, new_config) finally: try: os.remove(temp_config_file) except OSError: pass def clear_sssd_cache(host): """ Clears SSSD cache by removing the cache files. Restarts SSSD. """ systemd_available = host.transport.file_exists(paths.SYSTEMCTL) if systemd_available: host.run_command(['systemctl', 'stop', 'sssd']) else: host.run_command([paths.SBIN_SERVICE, 'sssd', 'stop']) host.run_command("find /var/lib/sss/db -name '*.ldb' | " "xargs rm -fv") host.run_command(['rm', '-fv', paths.SSSD_MC_GROUP]) host.run_command(['rm', '-fv', paths.SSSD_MC_PASSWD]) if systemd_available: host.run_command(['systemctl', 'start', 'sssd']) else: host.run_command([paths.SBIN_SERVICE, 'sssd', 'start']) # To avoid false negatives due to SSSD not responding yet time.sleep(10) def sync_time(host, server): """ Syncs the time with the remote server. Please note that this function leaves chronyd stopped. """ host.run_command(['systemctl', 'stop', 'chronyd']) host.run_command(['chronyd', '-q', "server {srv} iburst".format(srv=server.hostname), 'pidfile /tmp/chronyd.pid', 'bindcmdaddress /']) def connect_replica(master, replica, domain_level=None): if domain_level is None: domain_level = master.config.domain_level check_domain_level(domain_level) if domain_level == DOMAIN_LEVEL_0: replica.run_command(['ipa-replica-manage', 'connect', master.hostname]) else: kinit_admin(master) master.run_command(["ipa", "topologysegment-add", DOMAIN_SUFFIX_NAME, "%s-to-%s" % (master.hostname, replica.hostname), "--leftnode=%s" % master.hostname, "--rightnode=%s" % replica.hostname ]) def disconnect_replica(master, replica, domain_level=None): if domain_level is None: domain_level = master.config.domain_level check_domain_level(domain_level) if domain_level == DOMAIN_LEVEL_0: replica.run_command(['ipa-replica-manage', 'disconnect', master.hostname]) else: kinit_admin(master) master.run_command(["ipa", "topologysegment-del", DOMAIN_SUFFIX_NAME, "%s-to-%s" % (master.hostname, replica.hostname), "--continue" ]) def kinit_admin(host, raiseonerr=True): return host.run_command(['kinit', 'admin'], raiseonerr=raiseonerr, stdin_text=host.config.admin_password) def uninstall_master(host, ignore_topology_disconnect=True, ignore_last_of_role=True, clean=True, verbose=False): host.collect_log(paths.IPASERVER_UNINSTALL_LOG) uninstall_cmd = ['ipa-server-install', '--uninstall', '-U'] host_domain_level = domainlevel(host) if ignore_topology_disconnect and host_domain_level != DOMAIN_LEVEL_0: uninstall_cmd.append('--ignore-topology-disconnect') if ignore_last_of_role and host_domain_level != DOMAIN_LEVEL_0: uninstall_cmd.append('--ignore-last-of-role') if verbose and host_domain_level != DOMAIN_LEVEL_0: uninstall_cmd.append('-v') result = host.run_command(uninstall_cmd) assert "Traceback" not in result.stdout_text host.run_command(['pkidestroy', '-s', 'CA', '-i', 'pki-tomcat'], raiseonerr=False) host.run_command(['rm', '-rf', paths.TOMCAT_TOPLEVEL_DIR, paths.SYSCONFIG_PKI_TOMCAT, paths.SYSCONFIG_PKI_TOMCAT_PKI_TOMCAT_DIR, paths.VAR_LIB_PKI_TOMCAT_DIR, paths.PKI_TOMCAT, paths.IPA_RENEWAL_LOCK, paths.REPLICA_INFO_GPG_TEMPLATE % host.hostname], raiseonerr=False) host.run_command("find /var/lib/sss/keytabs -name '*.keytab' | " "xargs rm -fv", raiseonerr=False) host.run_command("find /run/ipa -name 'krb5*' | xargs rm -fv", raiseonerr=False) if clean: unapply_fixes(host) def uninstall_client(host): host.collect_log(paths.IPACLIENT_UNINSTALL_LOG) host.run_command(['ipa-client-install', '--uninstall', '-U'], raiseonerr=False) unapply_fixes(host) @check_arguments_are((0, 2), Host) def clean_replication_agreement(master, replica, cleanup=False, raiseonerr=True): """ Performs `ipa-replica-manage del replica_hostname --force`. """ args = ['ipa-replica-manage', 'del', replica.hostname, '--force'] if cleanup: args.append('--cleanup') master.run_command(args, raiseonerr=raiseonerr) @check_arguments_are((0, 3), Host) def create_segment(master, leftnode, rightnode, suffix=DOMAIN_SUFFIX_NAME): """ creates a topology segment. The first argument is a node to run the command :returns: a hash object containing segment's name, leftnode, rightnode information and an error string. """ kinit_admin(master) lefthost = leftnode.hostname righthost = rightnode.hostname segment_name = "%s-to-%s" % (lefthost, righthost) result = master.run_command(["ipa", "topologysegment-add", suffix, segment_name, "--leftnode=%s" % lefthost, "--rightnode=%s" % righthost], raiseonerr=False) if result.returncode == 0: return {'leftnode': lefthost, 'rightnode': righthost, 'name': segment_name}, "" else: return {}, result.stderr_text def destroy_segment(master, segment_name, suffix=DOMAIN_SUFFIX_NAME): """ Destroys topology segment. :param master: reference to master object of class Host :param segment_name: name of the segment to be created """ assert isinstance(master, Host), "master should be an instance of Host" kinit_admin(master) command = ["ipa", "topologysegment-del", suffix, segment_name] result = master.run_command(command, raiseonerr=False) return result.returncode, result.stderr_text def get_topo(name_or_func): """Get a topology function by name A topology function receives a master and list of replicas, and yields (parent, child) pairs, where "child" should be installed from "parent" (or just connected if already installed) If a callable is given instead of name, it is returned directly """ if callable(name_or_func): return name_or_func return topologies[name_or_func] def _topo(name): """Decorator that registers a function in topologies under a given name""" def add_topo(func): topologies[name] = func return func return add_topo topologies = collections.OrderedDict() @_topo('star') def star_topo(master, replicas): r"""All replicas are connected to the master Rn R1 R2 \ | / R7-- M -- R3 / | \ R6 R5 R4 """ for replica in replicas: yield master, replica @_topo('line') def line_topo(master, replicas): r"""Line topology M \ R1 \ R2 \ R3 \ ... """ for replica in replicas: yield master, replica master = replica @_topo('complete') def complete_topo(master, replicas): r"""Each host connected to each other host M--R1 |\/| |/\| R2-R3 """ for replica in replicas: yield master, replica for replica1, replica2 in itertools.combinations(replicas, 2): yield replica1, replica2 @_topo('tree') def tree_topo(master, replicas): r"""Binary tree topology M / \ / \ R1 R2 / \ / \ R3 R4 R5 R6 / R7 ... """ replicas = list(replicas) def _masters(): for host in [master] + replicas: yield host yield host for parent, child in zip(_masters(), replicas): yield parent, child @_topo('tree2') def tree2_topo(master, replicas): r"""First replica connected directly to master, the rest in a line M / \ R1 R2 \ R3 \ R4 \ ... """ if replicas: yield master, replicas[0] for replica in replicas[1:]: yield master, replica master = replica @_topo('2-connected') def two_connected_topo(master, replicas): r"""No replica has more than 4 agreements and at least two replicas must fail to disconnect the topology. . . . . . . . . . . . . ... R --- R R --- R ... \ / \ / \ / \ / \ / \ / ... R R R ... \ / \ / \ / \ / M0 -- R2 | | | | R1 -- R3 . \ / . . \ / . . R . . . . . . . """ grow = [] pool = [master] + replicas try: v0 = pool.pop(0) v1 = pool.pop(0) yield v0, v1 v2 = pool.pop(0) yield v0, v2 grow.append((v0, v2)) v3 = pool.pop(0) yield v2, v3 yield v1, v3 grow.append((v1, v3)) for (r, s) in grow: t = pool.pop(0) for (u, v) in [(r, t), (s, t)]: yield u, v w = pool.pop(0) yield u, w x = pool.pop(0) yield v, x yield w, x grow.append((w, x)) except IndexError: return @_topo('double-circle') def double_circle_topo(master, replicas, site_size=6): r""" R--R |\/| |/\| R--R / \ M -- R /| |\ / | | \ R - R - R--|----|--R - R - R | X | | | | | | X | R - R - R -|----|--R - R - R \ | | / \| |/ R -- R \ / R--R |\/| |/\| R--R """ # to provide redundancy there must be at least two replicas per site assert site_size >= 2 # do not handle master other than the rest of the servers servers = [master] + replicas # split servers into sites it = [iter(servers)] * site_size sites = [(x[0], x[1], x[2:]) for x in zip(*it)] num_sites = len(sites) for i in range(num_sites): (a, b, _ignore) = sites[i] # create agreement inside the site yield a, b # create agreement to one server in two next sites for c, _d, _ignore in [sites[(i+n) % num_sites] for n in [1, 2]]: yield b, c if site_size > 2: # deploy servers inside the site for site in sites: site_servers = list(site[2]) yield site[0], site_servers[0] for edge in complete_topo(site_servers[0], site_servers[1:]): yield edge yield site[1], site_servers[-1] def install_topo(topo, master, replicas, clients, domain_level=None, skip_master=False, setup_replica_cas=True, setup_replica_kras=False): """Install IPA servers and clients in the given topology""" if setup_replica_kras and not setup_replica_cas: raise ValueError("Option 'setup_replica_kras' requires " "'setup_replica_cas' set to True") replicas = list(replicas) installed = {master} if not skip_master: install_master( master, domain_level=domain_level, setup_kra=setup_replica_kras ) add_a_records_for_hosts_in_master_domain(master) for parent, child in get_topo(topo)(master, replicas): if child in installed: logger.info('Connecting replica %s to %s', parent, child) connect_replica(parent, child) else: logger.info('Installing replica %s from %s', parent, child) install_replica( parent, child, setup_ca=setup_replica_cas, setup_kra=setup_replica_kras ) installed.add(child) install_clients([master] + replicas, clients) def install_clients(servers, clients): """Install IPA clients, distributing them among the given servers""" izip = getattr(itertools, 'izip', zip) for server, client in izip(itertools.cycle(servers), clients): logger.info('Installing client %s on %s', server, client) install_client(server, client) def _entries_to_ldif(entries): """Format LDAP entries as LDIF""" io = StringIO() writer = LDIFWriter(io) for entry in entries: writer.unparse(str(entry.dn), dict(entry.raw)) return io.getvalue() def wait_for_replication(ldap, timeout=30, target_status_re=r'^0 |^Error \(0\) ', raise_on_timeout=False): """Wait for all replication agreements to reach desired state With defaults waits until updates on all replication agreements are done (or failed) and exits without exception :param ldap: LDAP client autenticated with necessary rights to read the mapping tree :param timeout: Maximum time to wait, in seconds :param target_status_re: Regexp of status to wait for :param raise_on_timeout: if True, raises AssertionError if status not reached in specified time Note that this waits for updates originating on this host, not those coming from other hosts. """ logger.debug('Waiting for replication to finish') start = time.time() while True: status_attr = 'nsds5replicaLastUpdateStatus' progress_attr = 'nsds5replicaUpdateInProgress' entries = ldap.get_entries( DN(('cn', 'mapping tree'), ('cn', 'config')), filter='(objectclass=nsds5replicationagreement)', attrs_list=[status_attr, progress_attr]) logger.debug('Replication agreements: \n%s', _entries_to_ldif(entries)) statuses = [entry.single_value[status_attr] for entry in entries] wrong_statuses = [s for s in statuses if not re.match(target_status_re, s)] if any(e.single_value[progress_attr] == 'TRUE' for e in entries): msg = 'Replication not finished' logger.debug(msg) elif wrong_statuses: msg = 'Unexpected replication status: %s' % wrong_statuses[0] logger.debug(msg) else: logger.debug('Replication finished') return if time.time() - start > timeout: logger.error('Giving up wait for replication to finish') if raise_on_timeout: raise AssertionError(msg) break time.sleep(1) def wait_for_cleanallruv_tasks(ldap, timeout=30): """Wait until cleanallruv tasks are finished """ logger.debug('Waiting for cleanallruv tasks to finish') success_status = 'Successfully cleaned rid' for i in range(timeout): status_attr = 'nstaskstatus' try: entries = ldap.get_entries( DN(('cn', 'cleanallruv'), ('cn', 'tasks'), ('cn', 'config')), scope=ldap.SCOPE_ONELEVEL, attrs_list=[status_attr]) except errors.EmptyResult: logger.debug("No cleanallruv tasks") break # Check status if all( e.single_value[status_attr].startswith(success_status) for e in entries ): logger.debug("All cleanallruv tasks finished successfully") break else: logger.debug("cleanallruv task in progress, (waited %s/%ss)", i, timeout) time.sleep(1) else: logger.error('Giving up waiting for cleanallruv to finish') for e in entries: stat_str = e.single_value[status_attr] if not stat_str.startswith(success_status): logger.debug('%s status: %s', e.dn, stat_str) def add_a_records_for_hosts_in_master_domain(master): for host in master.domain.hosts: # We don't need to take care of the zone creation since it is master # domain try: verify_host_resolvable(host.hostname) logger.debug("The host (%s) is resolvable.", host.hostname) except errors.DNSNotARecordError: logger.debug("Hostname (%s) does not have A/AAAA record. Adding " "new one.", host.hostname) add_a_record(master, host) def add_a_record(master, host): # Find out if the record is already there cmd = master.run_command(['ipa', 'dnsrecord-show', master.domain.name, host.hostname + "."], raiseonerr=False) # If not, add it if cmd.returncode != 0: master.run_command(['ipa', 'dnsrecord-add', master.domain.name, host.hostname + ".", '--a-rec', host.ip]) def resolve_record(nameserver, query, rtype="SOA", retry=True, timeout=100): """Resolve DNS record :retry: if resolution failed try again until timeout is reached :timeout: max period of time while method will try to resolve query (requires retry=True) """ res = dns.resolver.Resolver() res.nameservers = [nameserver] res.lifetime = 10 # wait max 10 seconds for reply wait_until = time.time() + timeout while time.time() < wait_until: try: ans = res.query(query, rtype) return ans except dns.exception.DNSException: if not retry: raise time.sleep(1) def ipa_backup(master): result = master.run_command(["ipa-backup"]) path_re = re.compile("^Backed up to (?P.*)$", re.MULTILINE) matched = path_re.search(result.stdout_text + result.stderr_text) return matched.group("backup") def ipa_restore(master, backup_path): master.run_command(["ipa-restore", "-U", "-p", master.config.dirman_password, backup_path]) def install_kra(host, domain_level=None, first_instance=False, raiseonerr=True): if domain_level is None: domain_level = domainlevel(host) check_domain_level(domain_level) command = ["ipa-kra-install", "-U", "-p", host.config.dirman_password] try: result = host.run_command(command, raiseonerr=raiseonerr) finally: setup_server_logs_collecting(host) return result def install_ca(host, domain_level=None, first_instance=False, external_ca=False, cert_files=None, raiseonerr=True): if domain_level is None: domain_level = domainlevel(host) check_domain_level(domain_level) command = ["ipa-ca-install", "-U", "-p", host.config.dirman_password, "-P", 'admin', "-w", host.config.admin_password] # First step of ipa-ca-install --external-ca if external_ca: command.append('--external-ca') # Continue with ipa-ca-install --external-ca if cert_files: for fname in cert_files: command.extend(['--external-cert-file', fname]) try: result = host.run_command(command, raiseonerr=raiseonerr) finally: setup_server_logs_collecting(host) return result def install_dns(host, raiseonerr=True): args = [ "ipa-dns-install", "--forwarder", host.config.dns_forwarder, "-U", ] return host.run_command(args, raiseonerr=raiseonerr) def uninstall_replica(master, replica): master.run_command(["ipa-replica-manage", "del", "--force", "-p", master.config.dirman_password, replica.hostname], raiseonerr=False) uninstall_master(replica) def replicas_cleanup(func): """ replicas_cleanup decorator, applied to any test method in integration tests uninstalls all replicas in the topology leaving only master configured """ def wrapped(*args): func(*args) for host in args[0].replicas: uninstall_replica(args[0].master, host) uninstall_client(host) result = args[0].master.run_command( ["ipa", "host-del", "--updatedns", host.hostname], raiseonerr=False) # Workaround for 5627 if "host not found" in result.stderr_text: args[0].master.run_command(["ipa", "host-del", host.hostname], raiseonerr=False) return wrapped def run_server_del(host, server_to_delete, force=False, ignore_topology_disconnect=False, ignore_last_of_role=False): kinit_admin(host) args = ['ipa', 'server-del', server_to_delete] if force: args.append('--force') if ignore_topology_disconnect: args.append('--ignore-topology-disconnect') if ignore_last_of_role: args.append('--ignore-last-of-role') return host.run_command(args, raiseonerr=False) def run_certutil(host, args, reqdir, dbtype=None, stdin=None, raiseonerr=True): dbdir = reqdir if dbtype is None else '{}:{}'.format(dbtype, reqdir) new_args = [paths.CERTUTIL, '-d', dbdir] new_args.extend(args) return host.run_command(new_args, raiseonerr=raiseonerr, stdin_text=stdin) def upload_temp_contents(host, contents, encoding='utf-8'): """Upload contents to a temporary file :param host: Remote host instance :param contents: file content (str, bytes) :param encoding: file encoding :return: Temporary file name """ result = host.run_command(['mktemp']) tmpname = result.stdout_text.strip() host.put_file_contents(tmpname, contents, encoding=encoding) return tmpname def assert_error(result, stderr_text, returncode=None): "Assert that `result` command failed and its stderr contains `stderr_text`" assert stderr_text in result.stderr_text, result.stderr_text if returncode is not None: assert result.returncode == returncode else: assert result.returncode > 0 def restart_named(*args): time.sleep(20) # give a time to DNSSEC daemons to provide keys for named for host in args: host.run_command(["systemctl", "restart", "named-pkcs11.service"]) time.sleep(20) # give a time to named to be ready (zone loading) def run_repeatedly(host, command, assert_zero_rc=True, test=None, timeout=30, **kwargs): """ Runs command on host repeatedly until it's finished successfully (returns 0 exit code and its stdout passes the test function). Returns True if the command was executed succesfully, False otherwise. This method accepts additional kwargs and passes these arguments to the actual run_command method. """ time_waited = 0 time_step = 2 # Check that the test is a function if test: assert callable(test) while(time_waited <= timeout): result = host.run_command(command, raiseonerr=False, **kwargs) return_code_ok = not assert_zero_rc or (result.returncode == 0) test_ok = not test or test(result.stdout_text) if return_code_ok and test_ok: # Command successful return True else: # Command not successful time.sleep(time_step) time_waited += time_step raise AssertionError("Command: {cmd} repeatedly failed {times} times, " "exceeding the timeout of {timeout} seconds." .format(cmd=' '.join(command), times=timeout // time_step, timeout=timeout)) def get_host_ip_with_hostmask(host): """Detects the IP of the host including the hostmask Returns None if the IP could not be detected. """ ip = host.ip result = host.run_command(['ip', 'addr']) full_ip_regex = r'(?P%s/\d{1,2}) ' % re.escape(ip) match = re.search(full_ip_regex, result.stdout_text) if match: return match.group('full_ip') else: return None def ldappasswd_user_change(user, oldpw, newpw, master): container_user = dict(DEFAULT_CONFIG)['container_user'] basedn = master.domain.basedn userdn = "uid={},{},{}".format(user, container_user, basedn) master_ldap_uri = "ldap://{}".format(master.external_hostname) args = [paths.LDAPPASSWD, '-D', userdn, '-w', oldpw, '-a', oldpw, '-s', newpw, '-x', '-ZZ', '-H', master_ldap_uri] master.run_command(args) def ldappasswd_sysaccount_change(user, oldpw, newpw, master): container_sysaccounts = dict(DEFAULT_CONFIG)['container_sysaccounts'] basedn = master.domain.basedn userdn = "uid={},{},{}".format(user, container_sysaccounts, basedn) master_ldap_uri = "ldap://{}".format(master.external_hostname) args = [paths.LDAPPASSWD, '-D', userdn, '-w', oldpw, '-a', oldpw, '-s', newpw, '-x', '-ZZ', '-H', master_ldap_uri] master.run_command(args) def add_dns_zone(master, zone, skip_overlap_check=False, dynamic_update=False, add_a_record_hosts=None): """ Add DNS zone if it is not already added. """ result = master.run_command( ['ipa', 'dnszone-show', zone], raiseonerr=False) if result.returncode != 0: command = ['ipa', 'dnszone-add', zone] if skip_overlap_check: command.append('--skip-overlap-check') if dynamic_update: command.append('--dynamic-update=True') master.run_command(command) if add_a_record_hosts: for host in add_a_record_hosts: master.run_command(['ipa', 'dnsrecord-add', zone, host.hostname + ".", '--a-rec', host.ip]) else: logger.debug('Zone %s already added.', zone) def sign_ca_and_transport(host, csr_name, root_ca_name, ipa_ca_name): """ Sign ipa csr and save signed CA together with root CA back to the host. Returns root CA and IPA CA paths on the host. """ test_dir = host.config.test_dir # Get IPA CSR as bytes ipa_csr = host.get_file_contents(csr_name) external_ca = ExternalCA() # Create root CA root_ca = external_ca.create_ca() # Sign CSR ipa_ca = external_ca.sign_csr(ipa_csr) root_ca_fname = os.path.join(test_dir, root_ca_name) ipa_ca_fname = os.path.join(test_dir, ipa_ca_name) # Transport certificates (string > file) to master host.put_file_contents(root_ca_fname, root_ca) host.put_file_contents(ipa_ca_fname, ipa_ca) return (root_ca_fname, ipa_ca_fname) def generate_ssh_keypair(): """ Create SSH keypair for key authentication testing """ key = rsa.generate_private_key(backend=default_backend(), public_exponent=65537, key_size=2048) public_key = key.public_key().public_bytes( serialization.Encoding.OpenSSH, serialization.PublicFormat.OpenSSH) pem = key.private_bytes( encoding=serialization.Encoding.PEM, format=serialization.PrivateFormat.TraditionalOpenSSL, encryption_algorithm=serialization.NoEncryption() ) private_key_str = pem.decode('utf-8') public_key_str = public_key.decode('utf-8') return (private_key_str, public_key_str) def strip_cert_header(pem): """ Remove the header and footer from a certificate. """ regexp = ( r"^-----BEGIN CERTIFICATE-----(.*?)-----END CERTIFICATE-----" ) s = re.search(regexp, pem, re.MULTILINE | re.DOTALL) if s is not None: return s.group(1) else: return pem def user_add(host, login): host.run_command([ "ipa", "user-add", login, "--first", "test", "--last", "user" ])