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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())
474 lines
18 KiB
Python
474 lines
18 KiB
Python
# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
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# Simo Sorce <ssorce@redhat.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 shutil
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import logging
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import pwd
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import glob
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import sys
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import os
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import re
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import time
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from ipapython import ipautil
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import service
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import installutils
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import certs
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import ldap
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from ipaserver import ipaldap
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from ipaserver.install import ldapupdate
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from ipaserver.install import httpinstance
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from ipalib import util
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SERVER_ROOT_64 = "/usr/lib64/dirsrv"
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SERVER_ROOT_32 = "/usr/lib/dirsrv"
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def find_server_root():
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if ipautil.dir_exists(SERVER_ROOT_64):
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return SERVER_ROOT_64
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else:
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return SERVER_ROOT_32
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def realm_to_serverid(realm_name):
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return "-".join(realm_name.split("."))
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def config_dirname(serverid):
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return "/etc/dirsrv/slapd-" + serverid + "/"
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def schema_dirname(serverid):
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return config_dirname(serverid) + "/schema/"
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def erase_ds_instance_data(serverid):
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try:
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shutil.rmtree("/etc/dirsrv/slapd-%s" % serverid)
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except:
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pass
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try:
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shutil.rmtree("/usr/lib/dirsrv/slapd-%s" % serverid)
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except:
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pass
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try:
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shutil.rmtree("/usr/lib64/dirsrv/slapd-%s" % serverid)
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except:
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pass
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try:
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shutil.rmtree("/var/lib/dirsrv/slapd-%s" % serverid)
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except:
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pass
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try:
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shutil.rmtree("/var/lock/dirsrv/slapd-%s" % serverid)
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except:
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pass
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# try:
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# shutil.rmtree("/var/log/dirsrv/slapd-%s" % serverid)
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# except:
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# pass
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def check_existing_installation():
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dirs = glob.glob("/etc/dirsrv/slapd-*")
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if not dirs:
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return []
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serverids = []
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for d in dirs:
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serverids.append(os.path.basename(d).split("slapd-", 1)[1])
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return serverids
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def check_ports():
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ds_unsecure = installutils.port_available(389)
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ds_secure = installutils.port_available(636)
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return (ds_unsecure, ds_secure)
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def is_ds_running():
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"""The DS init script always returns 0 when requesting status so it cannot
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be used to determine if the server is running. We have to look at the
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output.
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"""
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ret = True
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try:
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(sout, serr) = ipautil.run(["/sbin/service", "dirsrv", "status"])
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if sout.find("is stopped") >= 0:
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ret = False
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except ipautil.CalledProcessError:
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ret = False
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return ret
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INF_TEMPLATE = """
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[General]
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FullMachineName= $FQHN
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SuiteSpotUserID= $USER
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ServerRoot= $SERVER_ROOT
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[slapd]
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ServerPort= 389
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ServerIdentifier= $SERVERID
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Suffix= $SUFFIX
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RootDN= cn=Directory Manager
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RootDNPwd= $PASSWORD
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InstallLdifFile= /var/lib/dirsrv/boot.ldif
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"""
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BASE_TEMPLATE = """
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dn: $SUFFIX
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objectClass: top
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objectClass: domain
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objectClass: pilotObject
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dc: $BASEDC
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info: IPA V1.0
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"""
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class DsInstance(service.Service):
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def __init__(self, realm_name=None, domain_name=None, dm_password=None):
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service.Service.__init__(self, "dirsrv", dm_password=dm_password)
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self.realm_name = realm_name
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self.sub_dict = None
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self.domain = domain_name
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self.serverid = None
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self.host_name = None
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self.pkcs12_info = None
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self.ds_user = None
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if realm_name:
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self.suffix = util.realm_to_suffix(self.realm_name)
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self.__setup_sub_dict()
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else:
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self.suffix = None
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def create_instance(self, ds_user, realm_name, host_name, domain_name, dm_password, pkcs12_info=None, self_signed_ca=False, uidstart=1100, gidstart=1100):
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self.ds_user = ds_user
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self.realm_name = realm_name.upper()
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self.serverid = realm_to_serverid(self.realm_name)
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self.suffix = util.realm_to_suffix(self.realm_name)
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self.host_name = host_name
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self.dm_password = dm_password
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self.domain = domain_name
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self.pkcs12_info = pkcs12_info
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self.self_signed_ca = self_signed_ca
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self.uidstart = uidstart
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self.gidstart = gidstart
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self.__setup_sub_dict()
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self.step("creating directory server user", self.__create_ds_user)
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self.step("creating directory server instance", self.__create_instance)
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self.step("adding default schema", self.__add_default_schemas)
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self.step("enabling memberof plugin", self.__add_memberof_module)
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self.step("enabling referential integrity plugin", self.__add_referint_module)
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self.step("enabling winsync plugin", self.__add_winsync_module)
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self.step("enabling ldapi", self.__enable_ldapi)
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self.step("configuring uniqueness plugin", self.__set_unique_attrs)
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self.step("creating indices", self.__create_indices)
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self.step("configuring ssl for ds instance", self.__enable_ssl)
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self.step("configuring certmap.conf", self.__certmap_conf)
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self.step("restarting directory server", self.__restart_instance)
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self.step("adding default layout", self.__add_default_layout)
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self.step("adding delegation layout", self.__add_delegation_layout)
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self.step("configuring Posix uid/gid generation as first master",
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self.__config_uidgid_gen_first_master)
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self.step("adding master entry as first master",
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self.__add_master_entry_first_master)
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self.step("initializing group membership",
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self.init_memberof)
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self.step("configuring directory to start on boot", self.__enable)
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self.start_creation("Configuring directory server:")
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def __enable(self):
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self.backup_state("enabled", self.is_enabled())
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self.chkconfig_on()
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def __setup_sub_dict(self):
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server_root = find_server_root()
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self.sub_dict = dict(FQHN=self.host_name, SERVERID=self.serverid,
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PASSWORD=self.dm_password, SUFFIX=self.suffix.lower(),
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REALM=self.realm_name, USER=self.ds_user,
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SERVER_ROOT=server_root, DOMAIN=self.domain,
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TIME=int(time.time()), UIDSTART=self.uidstart,
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GIDSTART=self.gidstart)
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def __create_ds_user(self):
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user_exists = True
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try:
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pwd.getpwnam(self.ds_user)
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logging.debug("ds user %s exists" % self.ds_user)
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except KeyError:
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user_exists = False
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logging.debug("adding ds user %s" % self.ds_user)
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args = ["/usr/sbin/useradd", "-c", "DS System User", "-d", "/var/lib/dirsrv", "-M", "-r", "-s", "/sbin/nologin", self.ds_user]
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try:
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ipautil.run(args)
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logging.debug("done adding user")
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except ipautil.CalledProcessError, e:
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logging.critical("failed to add user %s" % e)
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self.backup_state("user", self.ds_user)
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self.backup_state("user_exists", user_exists)
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def __create_instance(self):
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self.backup_state("running", is_ds_running())
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self.backup_state("serverid", self.serverid)
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self.sub_dict['BASEDC'] = self.realm_name.split('.')[0].lower()
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base_txt = ipautil.template_str(BASE_TEMPLATE, self.sub_dict)
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logging.debug(base_txt)
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base_fd = file("/var/lib/dirsrv/boot.ldif", "w")
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base_fd.write(base_txt)
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base_fd.flush()
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base_fd.close()
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inf_txt = ipautil.template_str(INF_TEMPLATE, self.sub_dict)
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logging.debug("writing inf template")
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inf_fd = ipautil.write_tmp_file(inf_txt)
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inf_txt = re.sub(r"RootDNPwd=.*\n", "", inf_txt)
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logging.debug(inf_txt)
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if ipautil.file_exists("/usr/sbin/setup-ds.pl"):
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args = ["/usr/sbin/setup-ds.pl", "--silent", "--logfile", "-", "-f", inf_fd.name]
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logging.debug("calling setup-ds.pl")
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else:
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args = ["/usr/bin/ds_newinst.pl", inf_fd.name]
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logging.debug("calling ds_newinst.pl")
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try:
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ipautil.run(args)
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logging.debug("completed creating ds instance")
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except ipautil.CalledProcessError, e:
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logging.critical("failed to restart ds instance %s" % e)
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logging.debug("restarting ds instance")
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try:
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self.restart(self.serverid)
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logging.debug("done restarting ds instance")
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except ipautil.CalledProcessError, e:
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print "failed to restart ds instance", e
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logging.debug("failed to restart ds instance %s" % e)
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inf_fd.close()
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os.remove("/var/lib/dirsrv/boot.ldif")
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def __add_default_schemas(self):
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shutil.copyfile(ipautil.SHARE_DIR + "60kerberos.ldif",
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schema_dirname(self.serverid) + "60kerberos.ldif")
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shutil.copyfile(ipautil.SHARE_DIR + "60samba.ldif",
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schema_dirname(self.serverid) + "60samba.ldif")
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shutil.copyfile(ipautil.SHARE_DIR + "60radius.ldif",
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schema_dirname(self.serverid) + "60radius.ldif")
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shutil.copyfile(ipautil.SHARE_DIR + "60ipaconfig.ldif",
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schema_dirname(self.serverid) + "60ipaconfig.ldif")
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shutil.copyfile(ipautil.SHARE_DIR + "60basev2.ldif",
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schema_dirname(self.serverid) + "60basev2.ldif")
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shutil.copyfile(ipautil.SHARE_DIR + "60policyv2.ldif",
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schema_dirname(self.serverid) + "60policyv2.ldif")
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shutil.move(schema_dirname(self.serverid) + "05rfc2247.ldif",
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schema_dirname(self.serverid) + "05rfc2247.ldif.old")
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shutil.copyfile(ipautil.SHARE_DIR + "05rfc2247.ldif",
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schema_dirname(self.serverid) + "05rfc2247.ldif")
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def __restart_instance(self):
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try:
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self.restart(self.serverid)
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if not is_ds_running():
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logging.critical("Failed to restart the directory server. See the installation log for details.")
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sys.exit(1)
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except SystemExit, e:
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raise e
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except Exception, e:
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# TODO: roll back here?
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logging.critical("Failed to restart the directory server. See the installation log for details.")
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def __add_memberof_module(self):
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self._ldap_mod("memberof-conf.ldif")
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def init_memberof(self):
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self._ldap_mod("memberof-task.ldif", self.sub_dict)
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def apply_updates(self):
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ld = ldapupdate.LDAPUpdate(dm_password=self.dm_password)
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files = ld.get_all_files(ldapupdate.UPDATES_DIR)
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ld.update(files)
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def __add_referint_module(self):
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self._ldap_mod("referint-conf.ldif")
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def __set_unique_attrs(self):
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self._ldap_mod("unique-attributes.ldif", self.sub_dict)
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def __config_uidgid_gen_first_master(self):
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self._ldap_mod("dna-posix.ldif", self.sub_dict)
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def __add_master_entry_first_master(self):
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self._ldap_mod("master-entry.ldif", self.sub_dict)
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def __add_winsync_module(self):
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self._ldap_mod("ipa-winsync-conf.ldif")
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def __enable_ssl(self):
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dirname = config_dirname(self.serverid)
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dsdb = certs.CertDB(dirname)
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if self.pkcs12_info:
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dsdb.create_from_pkcs12(self.pkcs12_info[0], self.pkcs12_info[1])
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server_certs = dsdb.find_server_certs()
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if len(server_certs) == 0:
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raise RuntimeError("Could not find a suitable server cert in import in %s" % self.pkcs12_info[0])
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# We only handle one server cert
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nickname = server_certs[0][0]
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else:
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nickname = "Server-Cert"
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cadb = certs.CertDB(httpinstance.NSS_DIR, host_name=self.host_name)
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if self.self_signed_ca:
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cadb.create_self_signed()
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dsdb.create_from_cacert(cadb.cacert_fname)
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dsdb.create_server_cert("Server-Cert", self.host_name, cadb)
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dsdb.create_pin_file()
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else:
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# FIXME, need to set this nickname in the RA plugin
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cadb.export_ca_cert('ipaCert', False)
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dsdb.create_from_cacert(cadb.cacert_fname, passwd=None)
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dsdb.create_server_cert("Server-Cert", self.host_name, cadb)
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dsdb.create_pin_file()
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conn = ipaldap.IPAdmin("127.0.0.1")
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conn.simple_bind_s("cn=directory manager", self.dm_password)
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mod = [(ldap.MOD_REPLACE, "nsSSLClientAuth", "allowed"),
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(ldap.MOD_REPLACE, "nsSSL3Ciphers",
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"-rsa_null_md5,+rsa_rc4_128_md5,+rsa_rc4_40_md5,+rsa_rc2_40_md5,\
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+rsa_des_sha,+rsa_fips_des_sha,+rsa_3des_sha,+rsa_fips_3des_sha,+fortezza,\
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+fortezza_rc4_128_sha,+fortezza_null,+tls_rsa_export1024_with_rc4_56_sha,\
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+tls_rsa_export1024_with_des_cbc_sha")]
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conn.modify_s("cn=encryption,cn=config", mod)
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mod = [(ldap.MOD_ADD, "nsslapd-security", "on"),
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(ldap.MOD_REPLACE, "nsslapd-ssl-check-hostname", "off")]
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conn.modify_s("cn=config", mod)
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entry = ipaldap.Entry("cn=RSA,cn=encryption,cn=config")
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entry.setValues("objectclass", "top", "nsEncryptionModule")
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entry.setValues("cn", "RSA")
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entry.setValues("nsSSLPersonalitySSL", nickname)
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entry.setValues("nsSSLToken", "internal (software)")
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entry.setValues("nsSSLActivation", "on")
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conn.addEntry(entry)
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conn.unbind()
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def __add_default_layout(self):
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self._ldap_mod("bootstrap-template.ldif", self.sub_dict)
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def __add_delegation_layout(self):
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self._ldap_mod("delegation.ldif", self.sub_dict)
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def __create_indices(self):
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self._ldap_mod("indices.ldif")
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def __certmap_conf(self):
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shutil.copyfile(ipautil.SHARE_DIR + "certmap.conf.template",
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config_dirname(self.serverid) + "certmap.conf")
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def __enable_ldapi(self):
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self._ldap_mod("ldapi.ldif", self.sub_dict)
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def change_admin_password(self, password):
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logging.debug("Changing admin password")
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dirname = config_dirname(self.serverid)
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if ipautil.dir_exists("/usr/lib64/mozldap"):
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app = "/usr/lib64/mozldap/ldappasswd"
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else:
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app = "/usr/lib/mozldap/ldappasswd"
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args = [app,
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"-D", "cn=Directory Manager", "-w", self.dm_password,
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"-P", dirname+"/cert8.db", "-ZZZ", "-s", password,
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"uid=admin,cn=users,cn=accounts,"+self.suffix]
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try:
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ipautil.run(args)
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logging.debug("ldappasswd done")
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except ipautil.CalledProcessError, e:
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print "Unable to set admin password", e
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logging.debug("Unable to set admin password %s" % e)
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def uninstall(self):
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running = self.restore_state("running")
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enabled = self.restore_state("enabled")
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if not running is None:
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self.stop()
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if not enabled is None and not enabled:
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self.chkconfig_off()
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serverid = self.restore_state("serverid")
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if not serverid is None:
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erase_ds_instance_data(serverid)
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ds_user = self.restore_state("user")
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user_exists = self.restore_state("user_exists")
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if not ds_user is None and not user_exists is None and not user_exists:
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try:
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ipautil.run(["/usr/sbin/userdel", ds_user])
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except ipautil.CalledProcessError, e:
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logging.critical("failed to delete user %s" % e)
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|
|
if self.restore_state("running"):
|
|
self.start()
|
|
|
|
# we could probably move this function into the service.Service
|
|
# class - it's very generic - all we need is a way to get an
|
|
# instance of a particular Service
|
|
def add_ca_cert(self, cacert_fname, cacert_name=''):
|
|
"""Add a CA certificate to the directory server cert db. We
|
|
first have to shut down the directory server in case it has
|
|
opened the cert db read-only. Then we use the CertDB class
|
|
to add the CA cert. We have to provide a nickname, and we
|
|
do not use 'CA certificate' since that's the default, so
|
|
we use 'Imported CA' if none specified. Then we restart
|
|
the server."""
|
|
# first make sure we have a valid cacert_fname
|
|
try:
|
|
if not os.access(cacert_fname, os.R_OK):
|
|
logging.critical("The given CA cert file named [%s] could not be read" %
|
|
cacert_fname)
|
|
return False
|
|
except OSError, e:
|
|
logging.critical("The given CA cert file named [%s] could not be read: %s" %
|
|
(cacert_fname, str(e)))
|
|
return False
|
|
# ok - ca cert file can be read
|
|
# shutdown the server
|
|
self.stop()
|
|
|
|
dirname = config_dirname(realm_to_serverid(self.realm_name))
|
|
certdb = certs.CertDB(dirname)
|
|
if not cacert_name or len(cacert_name) == 0:
|
|
cacert_name = "Imported CA"
|
|
# we can't pass in the nickname, so we set the instance variable
|
|
certdb.cacert_name = cacert_name
|
|
status = True
|
|
try:
|
|
certdb.load_cacert(cacert_fname)
|
|
except ipautil.CalledProcessError, e:
|
|
logging.critical("Error importing CA cert file named [%s]: %s" %
|
|
(cacert_fname, str(e)))
|
|
status = False
|
|
# restart the directory server
|
|
self.start()
|
|
|
|
return status
|