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#! /usr/bin/python -E
# Authors: John Dennis <jdennis@redhat.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; version 2 or later
#
# 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
from ipa.ipautil import *
import service
import os
import re
IPA_RADIUS_VERSION = '0.0.0'
PKG_NAME = 'freeradius'
PKG_CONFIG_DIR = '/etc/raddb'
RADIUS_SERVICE_NAME = 'radius'
RADIUS_USER = 'radiusd'
IPA_KEYTAB_FILEPATH = os.path.join(PKG_CONFIG_DIR, 'ipa.keytab')
LDAP_ATTR_MAP_FILEPATH = os.path.join(PKG_CONFIG_DIR, 'ldap.attrmap')
RADIUSD_CONF_FILEPATH = os.path.join(PKG_CONFIG_DIR, 'radiusd.conf')
RADIUSD_CONF_TEMPLATE_FILEPATH = os.path.join(SHARE_DIR, 'radius.radiusd.conf.template')
RADIUSD = '/usr/sbin/radiusd'
# 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([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 = realm_to_suffix(self.realm)
self.fqdn = host_name
self.ldap_server = ldap_server
self.principal = "%s/%s@%s" % (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()
self.start_creation(4, "Configuring radiusd")
try:
self.stop()
except:
# It could have been not running
pass
self.__create_radius_keytab()
self.__radiusd_conf()
try:
self.step("starting radiusd")
self.start()
except:
logging.error("radiusd service failed to start")
self.step("configuring radiusd to start on boot")
self.chkconfig_on()
def __radiusd_conf(self):
self.step('configuring radiusd.conf for radius instance')
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' : IPA_KEYTAB_FILEPATH,
'RADIUS_PRINCIPAL' : self.principal,
'RADIUS_USER_BASE_DN' : self.user_basedn,
'ACCESS_ATTRIBUTE' : '',
'ACCESS_ATTRIBUTE_DEFAULT' : 'TRUE',
'CLIENTS_BASEDN' : 'cn=clients,cn=radius,cn=services,cn=etc,%s' % self.suffix
}
try:
radiusd_conf = template_file(RADIUSD_CONF_TEMPLATE_FILEPATH, sub_dict)
radiusd_fd = open(RADIUSD_CONF_FILEPATH, 'w+')
radiusd_fd.write(radiusd_conf)
radiusd_fd.close()
except Exception, e:
logging.error("could not create %s: %s", RADIUSD_CONF_FILEPATH, e)
def __create_radius_keytab(self):
self.step("create radiusd keytab")
try:
if file_exists(IPA_KEYTAB_FILEPATH):
os.remove(IPA_KEYTAB_FILEPATH)
except os.error:
logging.error("Failed to remove %s", 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" % (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 file_exists(IPA_KEYTAB_FILEPATH):
time.sleep(1)
retry += 1
if retry > 15:
print "Error timed out waiting for kadmin to finish operations\n"
os.exit()
try:
pent = pwd.getpwnam(RADIUS_USER)
os.chown(IPA_KEYTAB_FILEPATH, pent.pw_uid, pent.pw_gid)
except Exception, e:
logging.error("could not chown on %s to %s: %s", IPA_KEYTAB_FILEPATH, RADIUS_USER, e)
#-------------------------------------------------------------------------------
# FIXME: this should be in a common area so it can be shared
def get_ldap_attr_translations():
comment_re = re.compile('#.*$')
radius_attr_to_ldap_attr = {}
ldap_attr_to_radius_attr = {}
try:
f = open(LDAP_ATTR_MAP_FILEPATH)
for line in f.readlines():
line = comment_re.sub('', line).strip()
if not line: continue
attr_type, radius_attr, ldap_attr = line.split()
print 'type="%s" radius="%s" ldap="%s"' % (attr_type, radius_attr, ldap_attr)
radius_attr_to_ldap_attr[radius_attr] = {'ldap_attr':ldap_attr, 'attr_type':attr_type}
ldap_attr_to_radius_attr[ldap_attr] = {'radius_attr':radius_attr, 'attr_type':attr_type}
f.close()
except Exception, e:
logging.error('cold not read radius ldap attribute map file (%s): %s', LDAP_ATTR_MAP_FILEPATH, e)
pass # FIXME
#for k,v in radius_attr_to_ldap_attr.items():
# print '%s --> %s' % (k,v)
#for k,v in ldap_attr_to_radius_attr.items():
# print '%s --> %s' % (k,v)
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