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#! /usr/bin/python
#
# Authors: Sumit Bose <sbose@redhat.com>
# Based on ipa-server-install by Karl MacMillan <kmacmillan@mentalrootkit.com>
# and ipa-dns-install by Martin Nagy
#
# Copyright (C) 2011 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/>.
#
from ipaserver.plugins.ldap2 import ldap2
from ipaserver.install import adtrustinstance
from ipaserver.install.installutils import *
from ipaserver.install import installutils
from ipapython import version
from ipapython import ipautil, sysrestore
from ipalib import api, errors, util
from ipapython.config import IPAOptionParser
import krbV
import ldap
from ipapython.ipa_log_manager import *
log_file_name = "/var/log/ipaserver-install.log"
def parse_options():
parser = IPAOptionParser(version=version.VERSION)
parser.add_option("-p", "--ds-password", dest="dm_password",
sensitive=True, help="directory manager password")
parser.add_option("-d", "--debug", dest="debug", action="store_true",
default=False, help="print debugging information")
parser.add_option("--ip-address", dest="ip_address",
type="ip", ip_local=True, help="Master Server IP Address")
parser.add_option("--netbios-name", dest="netbios_name",
help="NetBIOS name of the IPA domain")
parser.add_option("--no-msdcs", dest="no_msdcs", action="store_true",
default=False, help="Do not create DNS service records " \
"for Windows in managed DNS server")
parser.add_option("-U", "--unattended", dest="unattended", action="store_true",
default=False, help="unattended installation never prompts the user")
options, args = parser.parse_args()
safe_options = parser.get_safe_opts(options)
return safe_options, options
def netbios_name_error(name):
print "Illegal NetBIOS name [%s].\n" % name
print "Up to 15 characters and only uppercase ASCII letter and digits are allowed."
def read_netbios_name(netbios_default):
netbios_name = ""
print "Enter the NetBIOS name for the IPA domain."
print "Only up to 15 uppercase ASCII letters and digits are allowed."
print "Example: EXAMPLE."
print ""
print ""
if not netbios_default:
netbios_default = "EXAMPLE"
while True:
netbios_name = ipautil.user_input("NetBIOS domain name", netbios_default, allow_empty = False)
print ""
if adtrustinstance.check_netbios_name(netbios_name):
break
netbios_name_error(netbios_name)
return netbios_name
def main():
safe_options, options = parse_options()
if os.getegid() != 0:
sys.exit("Must be root to setup AD trusts on server")
standard_logging_setup(log_file_name, debug=options.debug, filemode='a')
print "\nThe log file for this installation can be found in %s" % log_file_name
root_logger.debug('%s was invoked with options: %s' % (sys.argv[0], safe_options))
root_logger.debug("missing options might be asked for interactively later\n")
installutils.check_server_configuration()
global fstore
fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')
print "=============================================================================="
print "This program will setup components needed to establish trust to AD domains for"
print "the FreeIPA Server."
print ""
print "This includes:"
print " * Configure Samba"
print " * Add trust related objects to FreeIPA LDAP server"
#TODO:
#print " * Add a SID to all users and Posix groups"
print ""
print "To accept the default shown in brackets, press the Enter key."
print ""
# Check if samba packages are installed
if not adtrustinstance.check_inst():
sys.exit("Aborting installation.")
# Initialize the ipalib api
cfg = dict(
in_server=True,
debug=options.debug,
)
api.bootstrap(**cfg)
api.finalize()
if adtrustinstance.ipa_smb_conf_exists():
if not options.unattended:
while True:
print "IPA generated smb.conf detected."
if not ipautil.user_input("Overwrite smb.conf?", default = False, allow_empty = False):
sys.exit("Aborting installation.")
break
# Check we have a public IP that is associated with the hostname
ip = None
try:
hostaddr = resolve_host(api.env.host)
if len(hostaddr) > 1:
print >> sys.stderr, "The server hostname resolves to more than one address:"
for addr in hostaddr:
print >> sys.stderr, " %s" % addr
if options.ip_address:
if str(options.ip_address) not in hostaddr:
print >> sys.stderr, "Address passed in --ip-address did not match any resolved"
print >> sys.stderr, "address!"
sys.exit(1)
print "Selected IP address:", str(options.ip_address)
ip = options.ip_address
else:
if options.unattended:
print >> sys.stderr, "Please use --ip-address option to specify the address"
sys.exit(1)
else:
ip = read_ip_address(api.env.host, fstore)
else:
ip = hostaddr and ipautil.CheckedIPAddress(hostaddr[0], match_local=True)
except Exception, e:
print "Error: Invalid IP Address %s: %s" % (ip, e)
print "Aborting installation"
sys.exit(1)
ip_address = str(ip)
root_logger.debug("will use ip_address: %s\n", ip_address)
if not options.unattended:
print ""
print "The following operations may take some minutes to complete."
print "Please wait until the prompt is returned."
print ""
# Create a Adtrust instance
if options.unattended and not options.dm_password:
sys.exit("\nIn unattended mode you need to provide at least the -p option")
netbios_name = options.netbios_name
if not netbios_name:
netbios_name = adtrustinstance.make_netbios_name(api.env.domain)
if not adtrustinstance.check_netbios_name(netbios_name):
if options.unattended:
netbios_name_error(netbios_name)
sys.exit("Aborting installation.")
else:
netbios_name = None
if options.netbios_name:
netbios_name_error(options.netbios_name)
if not options.unattended and ( not netbios_name or not options.netbios_name):
netbios_name = read_netbios_name(netbios_name)
dm_password = options.dm_password or read_password("Directory Manager",
confirm=False, validate=False)
smb = adtrustinstance.ADTRUSTInstance(fstore, dm_password)
# try the connection
try:
smb.ldap_connect()
smb.ldap_disconnect()
except ldap.INVALID_CREDENTIALS, e:
sys.exit("Password is not valid!")
if smb.dm_password:
api.Backend.ldap2.connect(bind_dn="cn=Directory Manager", bind_pw=smb.dm_password)
else:
# See if our LDAP server is up and we can talk to it over GSSAPI
ccache = krbV.default_context().default_ccache().name
api.Backend.ldap2.connect(ccache)
smb.setup(api.env.host, ip_address, api.env.realm, api.env.domain,
netbios_name, options.no_msdcs)
smb.create_instance()
print "=============================================================================="
print "Setup complete"
print ""
print "\tYou must make sure these network ports are open:"
print "\t\tTCP Ports:"
print "\t\t * 138: netbios-dgm"
print "\t\t * 139: netbios-ssn"
print "\t\t * 445: microsoft-ds"
print "\t\tUDP Ports:"
print "\t\t * 138: netbios-dgm"
print "\t\t * 139: netbios-ssn"
print "\t\t * 389: (C)LDAP"
print "\t\t * 445: microsoft-ds"
print ""
print "\tAdditionally you have to make sure the FreeIPA LDAP server cannot be reached"
print "\tby any domain controller in the Active Directory domain by closing the"
print "\tfollowing ports for these servers:"
print "\t\tTCP Ports:"
print "\t\t * 389, 636: LDAP/LDAPS"
print "\tYou may want to choose to REJECT the network packets instead of DROPing them"
print "\tto avoid timeouts on the AD domain controllers."
print ""
print "\tWARNING: you MUST re-kinit admin user before using 'ipa trust-*' commands family"
print "\tin order to re-generate Kerberos tickets to include AD-specific information"
return 0
if __name__ == '__main__':
installutils.run_script(main, log_file_name=log_file_name,
operation_name='ipa-adtrust-install')
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