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https://salsa.debian.org/freeipa-team/freeipa.git
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49b36583a5
External CA signing is a 2-step process. You first have to run the IPA installer which will generate a CSR. You pass this CSR to your external CA and get back a cert. You then pass this cert and the CA cert and re-run the installer. The CSR is always written to /root/ipa.csr. A run would look like: # ipa-server-install --ca --external-ca -p password -a password -r EXAMPLE.COM -u dirsrv -n example.com --hostname=ipa.example.com -U [ sign cert request ] # ipa-server-install --ca --external-ca -p password -a password --external_cert_file=/tmp/rob.crt --external_ca_file=/tmp/cacert.crt -U -p password -a password -r EXAMPLE.COM -u dirsrv -n example.com --hostname=ipa.example.com This also abstracts out the RA backend plugin so the self-signed CA we create can be used in a running server. This means that the cert plugin can request certs (and nothing else). This should let us do online replica creation. To handle the self-signed CA the simple ca_serialno file now contains additional data so we don't have overlapping serial numbers in replicas. This isn't used yet. Currently the cert plugin will not work on self-signed replicas. One very important change for self-signed CAs is that the CA is no longer held in the DS database. It is now in the Apache database. Lots of general fixes were also made in ipaserver.install.certs including: - better handling when multiple CA certificates are in a single file - A temporary directory for request certs is not always created when the class is instantiated (you have to call setup_cert_request())
431 lines
15 KiB
Python
Executable File
431 lines
15 KiB
Python
Executable File
#! /usr/bin/python -E
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# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
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#
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# Copyright (C) 2007 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; version 2 only
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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import sys
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import socket
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import tempfile, os, pwd, traceback, logging, shutil
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from ConfigParser import SafeConfigParser
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import ldap
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from ipapython import ipautil
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from ipaserver.install import dsinstance, replication, installutils, krbinstance, service
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from ipaserver.install import bindinstance, httpinstance, ntpinstance, certs
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from ipaserver import ipaldap
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from ipapython import version
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from ipalib import api, util
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from ipalib.constants import DEFAULT_CONFIG
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CACERT="/usr/share/ipa/html/ca.crt"
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class HostnameLocalhost(Exception):
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pass
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class ReplicaConfig:
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def __init__(self):
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self.realm_name = ""
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self.domain_name = ""
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self.master_host_name = ""
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self.dirman_password = ""
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self.ds_user = ""
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self.host_name = ""
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self.repl_password = ""
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self.dir = ""
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def parse_options():
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from optparse import OptionParser
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parser = OptionParser(version=version.VERSION)
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parser.add_option("-N", "--no-ntp", dest="conf_ntp", action="store_false",
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help="do not configure ntp", default=True)
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parser.add_option("-d", "--debug", dest="debug", action="store_true",
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default=False, help="gather extra debugging information")
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parser.add_option("-p", "--password", dest="password",
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help="Directory Manager (existing master) password")
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parser.add_option("--setup-dns", dest="setup_dns", action="store_true",
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default=False, help="configure bind with our zone")
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parser.add_option("--forwarder", dest="forwarders", action="append",
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help="Add a DNS forwarder")
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parser.add_option("--no-forwarders", dest="no_forwarders", action="store_true",
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default=False, help="Do not add any DNS forwarders, use root servers instead")
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options, args = parser.parse_args()
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if len(args) != 1:
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parser.error("you must provide a file generated by ipa-replica-prepare")
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if not options.setup_dns:
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if options.forwarders:
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parser.error("You cannot specify a --forwarder option without the --setup-dns option")
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if options.no_forwarders:
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parser.error("You cannot specify a --no-forwarders option without the --setup-dns option")
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elif options.forwarders and options.no_forwarders:
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parser.error("You cannot specify a --forwarder option together with --no-forwarders")
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elif not options.forwarders and not options.no_forwarders:
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parser.error("You must specify at least one --forwarder option or --no-forwarders option")
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return options, args[0]
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def get_dirman_password():
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return installutils.read_password("Directory Manager (existing master)", confirm=False, validate=False)
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def expand_info(filename, password):
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top_dir = tempfile.mkdtemp("ipa")
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tarfile = top_dir+"/files.tar"
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dir = top_dir + "/realm_info"
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ipautil.decrypt_file(filename, tarfile, password, top_dir)
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ipautil.run(["tar", "xf", tarfile, "-C", top_dir])
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os.remove(tarfile)
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return top_dir, dir
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def read_info(dir, rconfig):
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filename = dir + "/realm_info"
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fd = open(filename)
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config = SafeConfigParser()
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config.readfp(fd)
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rconfig.realm_name = config.get("realm", "realm_name")
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rconfig.master_host_name = config.get("realm", "master_host_name")
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rconfig.ds_user = config.get("realm", "ds_user")
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rconfig.domain_name = config.get("realm", "domain_name")
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rconfig.host_name = config.get("realm", "destination_host")
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def get_host_name():
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hostname = installutils.get_fqdn()
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try:
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installutils.verify_fqdn(hostname)
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except RuntimeError, e:
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logging.error(str(e))
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sys.exit(1)
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return hostname
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def resolve_host(host_name):
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ip = socket.gethostbyname(host_name)
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if ip == "127.0.0.1" or ip == "::1":
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raise HostnameLocalhost
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return ip
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def set_owner(config, dir):
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pw = pwd.getpwnam(config.ds_user)
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os.chown(dir, pw.pw_uid, pw.pw_gid)
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def install_ca(config):
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# FIXME, need to pass along the CA plugin to use
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cafile = config.dir + "/ca.p12"
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# Just initialize the environment. This is so the installer can have
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# access to the plugin environment
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api.env._bootstrap()
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default_config = dict(DEFAULT_CONFIG)
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if ipautil.file_exists(cafile):
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default_config['ra_plugin'] = 'dogtag'
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api.env._finalize_core(**default_config)
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if not ipautil.file_exists(cafile):
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return None
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try:
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from ipaserver.install import cainstance
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except ImportError:
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print >> sys.stderr, "Import failed: %s" % sys.exc_value
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sys.exit(1)
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if not cainstance.check_inst():
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print "A CA was specified but the dogtag certificate server"
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print "is not installed on the system"
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print "Please install dogtag and restart the setup program"
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sys.exit(1)
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cs = cainstance.CADSInstance()
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cs.create_instance(config.ds_user, config.realm_name, config.host_name, config.domain_name, config.dirman_password)
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ca = cainstance.CAInstance()
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ca.configure_instance("pkiuser", config.host_name, config.dirman_password, config.dirman_password, pkcs12_info=(cafile,), master_host=config.master_host_name)
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return ca
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def install_ds(config):
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dsinstance.check_existing_installation()
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dsinstance.check_ports()
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# if we have a pkcs12 file, create the cert db from
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# that. Otherwise the ds setup will create the CA
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# cert
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pkcs12_info = None
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if ipautil.file_exists(config.dir + "/dscert.p12"):
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pkcs12_info = (config.dir + "/dscert.p12",
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config.dir + "/dirsrv_pin.txt")
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ds = dsinstance.DsInstance()
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ds.create_instance(config.ds_user, config.realm_name, config.host_name, config.domain_name, config.dirman_password, pkcs12_info)
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return ds
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def install_krb(config):
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krb = krbinstance.KrbInstance()
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ldappwd_filename = config.dir + "/ldappwd"
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kpasswd_filename = config.dir + "/kpasswd.keytab"
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krb.create_replica(config.ds_user, config.realm_name, config.host_name,
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config.domain_name, config.dirman_password,
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ldappwd_filename, kpasswd_filename)
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def install_ca_cert(config):
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if ipautil.file_exists(config.dir + "/ca.crt"):
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try:
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shutil.copy(config.dir + "/ca.crt", CACERT)
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os.chmod(CACERT, 0444)
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except Exception, e:
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print "error copying files: " + str(e)
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sys.exit(1)
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def install_http(config):
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# if we have a pkcs12 file, create the cert db from
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# that. Otherwise the ds setup will create the CA
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# cert
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pkcs12_info = None
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if ipautil.file_exists(config.dir + "/httpcert.p12"):
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pkcs12_info = (config.dir + "/httpcert.p12",
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config.dir + "/http_pin.txt")
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http = httpinstance.HTTPInstance()
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http.create_instance(config.realm_name, config.host_name, config.domain_name, False, pkcs12_info, self_signed_ca=True)
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# Now copy the autoconfiguration files
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if ipautil.file_exists(config.dir + "/preferences.html"):
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try:
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shutil.copy(config.dir + "/preferences.html", "/usr/share/ipa/html/preferences.html")
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shutil.copy(config.dir + "/configure.jar", "/usr/share/ipa/html/configure.jar")
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except Exception, e:
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print "error copying files: " + str(e)
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sys.exit(1)
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def install_bind(config, options):
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if options.forwarders:
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forwarders = options.forwarders
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else:
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forwarders = ()
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bind = bindinstance.BindInstance(dm_password=config.dirman_password)
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ip_address = resolve_host(config.host_name)
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bind.setup(config.host_name, ip_address, config.realm_name, config.domain_name, forwarders)
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bind.create_instance()
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def check_dirsrv():
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serverids = dsinstance.check_existing_installation()
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if serverids:
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print ""
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print "An existing Directory Server has been detected."
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if not ipautil.user_input("Do you wish to remove it and create a new one?", False):
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print ""
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print "Only a single Directory Server instance is allowed on an IPA"
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print "server, the one used by IPA itself."
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sys.exit(1)
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try:
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service.stop("dirsrv")
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except:
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pass
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for serverid in serverids:
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dsinstance.erase_ds_instance_data(serverid)
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(ds_unsecure, ds_secure) = dsinstance.check_ports()
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if not ds_unsecure or not ds_secure:
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print "IPA requires ports 389 and 636 for the Directory Server."
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print "These are currently in use:"
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if not ds_unsecure:
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print "\t389"
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if not ds_secure:
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print "\t636"
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sys.exit(1)
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def check_bind():
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if not bindinstance.check_inst():
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print "--setup-dns was specified but bind or the BIND LDAP plug-in"
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print "is not installed on the system"
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print "Please install bind and the LDAP plug-in and restart the setup program"
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sys.exit(1)
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def main():
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options, filename = parse_options()
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installutils.standard_logging_setup("/var/log/ipareplica-install.log", options.debug)
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if not ipautil.file_exists(filename):
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sys.exit("Replica file %s does not exist" % filename)
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if options.setup_dns:
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check_bind()
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check_dirsrv()
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# get the directory manager password
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dirman_password = options.password
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if not dirman_password:
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try:
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dirman_password = get_dirman_password()
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except KeyboardInterrupt:
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sys.exit(0)
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try:
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top_dir, dir = expand_info(filename, dirman_password)
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except Exception, e:
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print "ERROR: Failed to decrypt or open the replica file."
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print "Verify you entered the correct Directory Manager password."
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sys.exit(1)
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config = ReplicaConfig()
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read_info(dir, config)
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config.dirman_password = dirman_password
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host = get_host_name()
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if config.host_name != host:
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try:
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print "This replica was created for '%s' but this machine is named '%s'" % (config.host_name, host)
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if not ipautil.user_input("This may cause problems. Continue?", True):
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sys.exit(0)
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config.host_name = host
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print ""
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except KeyboardInterrupt:
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sys.exit(0)
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config.repl_password = ipautil.ipa_generate_password()
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config.dir = dir
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# Try out the password
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try:
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conn = ipaldap.IPAdmin(config.master_host_name)
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conn.do_simple_bind(bindpw=config.dirman_password)
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conn.unbind()
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except ldap.CONNECT_ERROR, e:
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sys.exit("\nUnable to connect to LDAP server %s" % config.master_host_name)
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except ldap.SERVER_DOWN, e:
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sys.exit("\nUnable to connect to LDAP server %s" % config.master_host_name)
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except ldap.INVALID_CREDENTIALS, e :
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sys.exit("\nThe password provided is incorrect for LDAP server %s" % config.master_host_name)
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# Install CA cert so that we can do SSL connections with ldap
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install_ca_cert(config)
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# Configure ntpd
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if options.conf_ntp:
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ntp = ntpinstance.NTPInstance()
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ntp.create_instance()
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# Configure the CA if necessary
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CA = install_ca(config)
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# Configure dirsrv
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ds = install_ds(config)
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try:
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repl = replication.ReplicationManager(config.host_name, config.dirman_password)
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ret = repl.setup_replication(config.master_host_name, config.realm_name)
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except Exception, e:
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logging.debug("Connection error: %s" % e)
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raise RuntimeError("Unable to connect to LDAP server %s." % config.host_name)
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if ret != 0:
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raise RuntimeError("Failed to start replication")
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install_krb(config)
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install_http(config)
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if CA:
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CA.import_ra_cert(dir + "/ra.p12")
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CA.fix_ra_perms()
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service.restart("httpd")
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# Create the config file
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fd = open("/etc/ipa/ipa.conf", "w")
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fd.write("[defaults]\n")
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fd.write("server=" + config.host_name + "\n")
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fd.write("realm=" + config.realm_name + "\n")
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fd.write("domain=" + config.domain_name + "\n")
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fd.close()
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# Create the management framework config file
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fd = open("/etc/ipa/default.conf", "w")
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fd.write("[global]\n")
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fd.write("basedn=" + util.realm_to_suffix(config.realm_name) + "\n")
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fd.write("realm=" + config.realm_name + "\n")
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fd.write("domain=" + config.domain_name + "\n")
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fd.write("xmlrpc_uri=https://%s/ipa/xml\n" % config.host_name)
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fd.write("ldap_uri=ldapi://%%2fvar%%2frun%%2fslapd-%s.socket\n" % dsinstance.realm_to_serverid(config.realm_name))
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if ipautil.file_exists(config.dir + "/ca.p12"):
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fd.write("enable_ra=True\n")
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fd.write("ra_plugin=dogtag\n")
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fd.close()
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# Apply any LDAP updates. Needs to be done after the replica is synced-up
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service.print_msg("Applying LDAP updates")
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ds.apply_updates()
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service.restart("dirsrv")
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service.restart("krb5kdc")
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if options.setup_dns:
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# First bootstrap the plug-in framework
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api.bootstrap(in_server=True)
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api.finalize()
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api.Backend.ldap2.connect(bind_dn="cn=Directory Manager",
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bind_pw=config.dirman_password)
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install_bind(config, options)
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# Call client install script
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try:
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ipautil.run(["/usr/sbin/ipa-client-install", "--on-master", "--unattended", "--domain", config.domain_name, "--server", config.host_name, "--realm", config.realm_name])
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except Exception, e:
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print "Configuration of client side components failed!"
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print "ipa-client-install returned: " + str(e)
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raise RuntimeError("Failed to configure the client")
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ds.init_memberof()
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try:
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if not os.geteuid()==0:
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sys.exit("\nYou must be root to run this script.\n")
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main()
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sys.exit(0)
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except SystemExit, e:
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sys.exit(e)
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except socket.error, (errno, errstr):
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print errstr
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except HostnameLocalhost:
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print "The hostname resolves to the localhost address (127.0.0.1/::1)"
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print "Please change your /etc/hosts file so that the hostname"
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print "resolves to the ip address of your network interface."
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print ""
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print "Please fix your /etc/hosts file and restart the setup program"
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except Exception, e:
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print "creation of replica failed: %s" % str(e)
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message = str(e)
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for str in traceback.format_tb(sys.exc_info()[2]):
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message = message + "\n" + str
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logging.debug(message)
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except KeyboardInterrupt:
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print "Installation cancelled."
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print ""
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print "Your system may be partly configured."
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print "Run /usr/sbin/ipa-server-install --uninstall to clean up."
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# the only way to get here is on error or ^C
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sys.exit(1)
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