# Authors: John Dennis # # 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; version 2 only # # 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, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # import subprocess import string import tempfile import shutil import logging import pwd import time import sys from ipa import ipautil from ipa import radius_util from ipaserver import service import os import re IPA_RADIUS_VERSION = '0.0.0' # FIXME there should a utility to get the user base dn from ipaserver.funcs import DefaultUserContainer, DefaultGroupContainer #------------------------------------------------------------------------------- def get_radius_version(): version = None try: p = subprocess.Popen([radius_util.RADIUSD, '-v'], stdout=subprocess.PIPE, stderr=subprocess.PIPE) stdout, stderr = p.communicate() status = p.returncode if status == 0: match = re.search("radiusd: FreeRADIUS Version (.+), for host", stdout) if match: version = match.group(1) except Exception, e: pass return version #------------------------------------------------------------------------------- class RadiusInstance(service.Service): def __init__(self): service.Service.__init__(self, "radiusd") self.fqdn = None self.realm = None self.principal = None def create_instance(self, realm_name, host_name, ldap_server): self.realm = realm_name.upper() self.suffix = ipautil.realm_to_suffix(self.realm) self.fqdn = host_name self.ldap_server = ldap_server self.principal = "%s/%s@%s" % (radius_util.RADIUS_SERVICE_NAME, self.fqdn, self.realm) self.basedn = self.suffix self.user_basedn = "%s,%s" % (DefaultUserContainer, self.basedn) # FIXME, should be utility to get this self.radius_version = get_radius_version() try: self.stop() except: # It could have been not running pass self.step("create radiusd keytab", self.__create_radius_keytab) self.step("configuring radiusd.conf for radius instance", self.__radiusd_conf) self.step("starting radiusd", self.__start_instance) self.step("configuring radiusd to start on boot", self.chkconfig_on) # FIXME: # self.step("setting ldap encrypted attributes", self.__set_ldap_encrypted_attributes) self.start_creation("Configuring radiusd") def __start_instance(self): try: self.start() except: logging.error("radiusd service failed to start") def __radiusd_conf(self): version = 'IPA_RADIUS_VERSION=%s FREE_RADIUS_VERSION=%s' % (IPA_RADIUS_VERSION, self.radius_version) sub_dict = {'CONFIG_FILE_VERSION_INFO' : version, 'LDAP_SERVER' : self.ldap_server, 'RADIUS_KEYTAB' : radius_util.RADIUS_IPA_KEYTAB_FILEPATH, 'RADIUS_PRINCIPAL' : self.principal, 'RADIUS_USER_BASE_DN' : self.user_basedn, 'ACCESS_ATTRIBUTE' : '', 'ACCESS_ATTRIBUTE_DEFAULT' : 'TRUE', 'CLIENTS_BASEDN' : radius_util.radius_clients_basedn(None, self.suffix), 'SUFFIX' : self.suffix, } try: radiusd_conf = ipautil.template_file(radius_util.RADIUSD_CONF_TEMPLATE_FILEPATH, sub_dict) radiusd_fd = open(radius_util.RADIUSD_CONF_FILEPATH, 'w+') radiusd_fd.write(radiusd_conf) radiusd_fd.close() except Exception, e: logging.error("could not create %s: %s", radius_util.RADIUSD_CONF_FILEPATH, e) def __create_radius_keytab(self): try: if ipautil.file_exists(radius_util.RADIUS_IPA_KEYTAB_FILEPATH): os.remove(radius_util.RADIUS_IPA_KEYTAB_FILEPATH) except os.error: logging.error("Failed to remove %s", radius_util.RADIUS_IPA_KEYTAB_FILEPATH) (kwrite, kread, kerr) = os.popen3("/usr/kerberos/sbin/kadmin.local") kwrite.write("addprinc -randkey %s\n" % (self.principal)) kwrite.flush() kwrite.write("ktadd -k %s %s\n" % (radius_util.RADIUS_IPA_KEYTAB_FILEPATH, self.principal)) kwrite.flush() kwrite.close() kread.close() kerr.close() # give kadmin time to actually write the file before we go on retry = 0 while not ipautil.file_exists(radius_util.RADIUS_IPA_KEYTAB_FILEPATH): time.sleep(1) retry += 1 if retry > 15: print "Error timed out waiting for kadmin to finish operations\n" sys.exit(1) try: pent = pwd.getpwnam(radius_util.RADIUS_USER) os.chown(radius_util.RADIUS_IPA_KEYTAB_FILEPATH, pent.pw_uid, pent.pw_gid) except Exception, e: logging.error("could not chown on %s to %s: %s", radius_util.RADIUS_IPA_KEYTAB_FILEPATH, radius_util.RADIUS_USER, e) def __ldap_mod(self, ldif): txt = iputil.template_file(ipautil.SHARE_DIR + ldif, self.sub_dict) fd = ipautil.write_tmp_file(txt) args = ["/usr/bin/ldapmodify", "-h", "127.0.0.1", "-xv", "-D", "cn=Directory Manager", "-w", self.dm_password, "-f", fd.name] try: ipautil.run(args) except ipautil.CalledProcessError, e: logging.critical("Failed to load %s: %s" % (ldif, str(e))) fd.close() #FIXME, should use IPAdmin method def __set_ldap_encrypted_attributes(self): self.__ldap_mod("encrypted_attribute.ldif", {"ENCRYPTED_ATTRIBUTE" : "radiusClientSecret"}) #-------------------------------------------------------------------------------