freeipa/ipaserver/advise/plugins/legacy_clients.py
Rob Crittenden 6518a600b4 Change FreeIPA references to IPA and Identity Management
In order to simplify the build process between upstream FreeIPA
and downstream builds (such as CentOS Stream) we are changing
some file references from FreeIPA to IPA (and Identity Management).

https://pagure.io/freeipa/issue/8669

Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2021-01-21 13:51:45 +01:00

381 lines
15 KiB
Python

# Authors: Ana Krivokapic <akrivoka@redhat.com>
#
# Copyright (C) 2013 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 __future__ import absolute_import
import os
from ipalib import api
from ipalib.plugable import Registry
from ipaplatform.paths import paths
from ipaserver.advise.base import Advice
from ipapython.ipautil import template_file
register = Registry()
CACERTDIR_REHASH_URL = ('https://pagure.io/authconfig/raw/master/f/'
'cacertdir_rehash')
class config_base_legacy_client(Advice):
def get_uri_and_base(self):
uri = 'ldap://%s' % api.env.host
base = 'cn=compat,%s' % api.env.basedn
return uri, base
def check_compat_plugin(self):
compat_is_enabled = api.Command['compat_is_enabled']()['result']
if not compat_is_enabled:
self.log.comment(
'Schema Compatibility plugin has not been configured '
'on this server. To configure it, run '
'"ipa-adtrust-install --enable-compat"\n'
)
def configure_ca_cert(self):
self.log.comment('Please note that this script assumes '
'/etc/openldap/cacerts as the default CA certificate '
'location. If this value is different on your system '
'the script needs to be modified accordingly.\n')
self.log.comment('Download the CA certificate of the IPA server')
self.log.command('mkdir -p -m 755 /etc/openldap/cacerts')
self.log.command('curl http://%s/ipa/config/ca.crt -o '
'/etc/openldap/cacerts/ipa.crt\n' % api.env.host)
self.log.comment('Generate hashes for the openldap library')
self.log.command('command -v cacertdir_rehash')
self.log.command('if [ $? -ne 0 ] ; then')
self.log.command(' curl "%s" -o cacertdir_rehash ;' %
CACERTDIR_REHASH_URL)
self.log.command(' chmod 755 ./cacertdir_rehash ;')
self.log.command(' ./cacertdir_rehash /etc/openldap/cacerts/ ;')
self.log.command('else')
self.log.command(' cacertdir_rehash /etc/openldap/cacerts/ ;')
self.log.command('fi\n')
def configure_and_start_sssd(self):
uri, base = self.get_uri_and_base()
template = os.path.join(
paths.USR_SHARE_IPA_DIR,
'advise',
'legacy',
'sssd.conf.template'
)
sssd_conf = template_file(template, dict(URI=uri, BASE=base))
self.log.comment('Configure SSSD')
self.log.command('cat > /etc/sssd/sssd.conf << EOF \n'
'%s\nEOF' % sssd_conf)
self.log.command('chmod 0600 /etc/sssd/sssd.conf\n')
self.log.comment('Start SSSD')
self.log.command('service sssd start')
@register()
class config_redhat_sssd_before_1_9(config_base_legacy_client):
"""
Legacy client configuration for Red Hat based systems, using SSSD.
"""
description = ('Instructions for configuring a system with an old version '
'of SSSD (1.5-1.8) as a IPA client. This set of '
'instructions is targeted for platforms that include '
'the authconfig utility, which are all Red Hat based '
'platforms.')
def get_info(self):
self.check_compat_plugin()
self.log.comment('Install required packages via yum')
self.log.command('yum install -y sssd authconfig curl openssl\n')
self.configure_ca_cert()
self.log.comment('Use the authconfig to configure nsswitch.conf '
'and the PAM stack')
self.log.command('authconfig --updateall --enablesssd '
'--enablesssdauth\n')
self.configure_and_start_sssd()
def configure_ca_cert(self):
self.log.comment('NOTE: IPA certificate uses the SHA-256 hash '
'function. SHA-256 was introduced in RHEL5.2. '
'Therefore, clients older than RHEL5.2 will not be '
'able to interoperate with IPA server 3.x.')
super(config_redhat_sssd_before_1_9, self).configure_ca_cert()
@register()
class config_generic_linux_sssd_before_1_9(config_base_legacy_client):
"""
Legacy client configuration for non Red Hat based linux systems,
using SSSD.
"""
description = ('Instructions for configuring a system with an old version '
'of SSSD (1.5-1.8) as a IPA client. This set of '
'instructions is targeted for linux systems that do not '
'include the authconfig utility.')
def get_info(self):
self.check_compat_plugin()
with open(os.path.join(
paths.USR_SHARE_IPA_DIR,
'advise',
'legacy',
'pam.conf.sssd.template')) as fd:
pam_conf = fd.read()
self.log.comment('Install required packages using your system\'s '
'package manager. E.g:')
self.log.command('apt-get -y install sssd curl openssl\n')
self.configure_ca_cert()
self.log.comment('Configure nsswitch.conf. Append sss to the lines '
'beginning with passwd and group. ')
self.log.command('grep "^passwd.*sss" /etc/nsswitch.conf')
self.log.command('if [ $? -ne 0 ] ; then sed -i '
'\'/^passwd/s|$| sss|\' /etc/nsswitch.conf ; fi')
self.log.command('grep "^group.*sss" /etc/nsswitch.conf')
self.log.command('if [ $? -ne 0 ] ; then sed -i '
'\'/^group/s|$| sss|\' /etc/nsswitch.conf ; fi\n')
self.log.comment('Configure PAM. Configuring the PAM stack differs on '
'particular distributions. The resulting PAM stack '
'should look like this:')
self.log.command('cat > /etc/pam.conf << EOF \n'
'%s\nEOF\n' % pam_conf)
self.configure_and_start_sssd()
def configure_ca_cert(self):
super(config_generic_linux_sssd_before_1_9, self).configure_ca_cert()
self.log.comment('Configure ldap.conf. Set the value of '
'TLS_CACERTDIR to /etc/openldap/cacerts. Make sure '
'that the location of ldap.conf file matches your '
'system\'s configuration.')
self.log.command('echo "TLS_CACERTDIR /etc/openldap/cacerts" >> '
'/etc/ldap/ldap.conf\n')
@register()
class config_redhat_nss_pam_ldapd(config_base_legacy_client):
"""
Legacy client configuration for Red Hat based systems,
using nss-pam-ldapd.
"""
description = ('Instructions for configuring a system with nss-pam-ldapd '
'as a IPA client. This set of instructions is targeted '
'for platforms that include the authconfig utility, which '
'are all Red Hat based platforms.')
def get_info(self):
uri, base = self.get_uri_and_base()
self.check_compat_plugin()
self.log.comment('Install required packages via yum')
self.log.command('yum install -y curl openssl nss-pam-ldapd pam_ldap '
'authconfig\n')
self.configure_ca_cert()
self.log.comment('Use the authconfig to configure nsswitch.conf '
'and the PAM stack')
self.log.command('authconfig --updateall --enableldap --enableldaptls '
'--enableldapauth --ldapserver=%s --ldapbasedn=%s\n'
% (uri, base))
def configure_ca_cert(self):
self.log.comment('NOTE: IPA certificate uses the SHA-256 hash '
'function. SHA-256 was introduced in RHEL5.2. '
'Therefore, clients older than RHEL5.2 will not be '
'able to interoperate with IPA server 3.x.')
super(config_redhat_nss_pam_ldapd, self).configure_ca_cert()
@register()
class config_generic_linux_nss_pam_ldapd(config_base_legacy_client):
"""
Legacy client configuration for non Red Hat based linux systems,
using nss-pam-ldapd.
"""
description = ('Instructions for configuring a system with nss-pam-ldapd. '
'This set of instructions is targeted for linux systems '
'that do not include the authconfig utility.')
def get_info(self):
uri, base = self.get_uri_and_base()
self.check_compat_plugin()
with open(os.path.join(
paths.USR_SHARE_IPA_DIR,
'advise',
'legacy',
'pam.conf.nss_pam_ldapd.template')) as fd:
pam_conf = fd.read()
nslcd_conf = 'uri %s\nbase %s' % (uri, base)
self.log.comment('Install required packages using your system\'s '
'package manager. E.g:')
self.log.command('apt-get -y install curl openssl libnss-ldapd '
'libpam-ldapd nslcd\n')
self.configure_ca_cert()
self.log.comment('Configure nsswitch.conf. Append ldap to the lines '
'beginning with passwd and group. ')
self.log.command('grep "^passwd.*ldap" /etc/nsswitch.conf')
self.log.command('if [ $? -ne 0 ] ; then sed -i '
'\'/^passwd/s|$| ldap|\' /etc/nsswitch.conf ; fi')
self.log.command('grep "^group.*ldap" /etc/nsswitch.conf')
self.log.command('if [ $? -ne 0 ] ; then sed -i '
'\'/^group/s|$| ldap|\' /etc/nsswitch.conf ; fi\n')
self.log.comment('Configure PAM. Configuring the PAM stack differs on '
'particular distributions. The resulting PAM stack '
'should look like this:')
self.log.command('cat > /etc/pam.conf << EOF \n'
'%s\nEOF\n' % pam_conf)
self.log.comment('Configure nslcd.conf:')
self.log.command('cat > /etc/nslcd.conf << EOF \n'
'%s\nEOF\n' % nslcd_conf)
self.log.comment('Configure pam_ldap.conf:')
self.log.command('cat > /etc/pam_ldap.conf << EOF \n'
'%s\nEOF\n' % nslcd_conf)
self.log.comment('Stop nscd and restart nslcd')
self.log.command('service nscd stop && service nslcd restart')
def configure_ca_cert(self):
super(config_generic_linux_nss_pam_ldapd, self).configure_ca_cert()
self.log.comment('Configure ldap.conf. Set the value of '
'TLS_CACERTDIR to /etc/openldap/cacerts. Make sure '
'that the location of ldap.conf file matches your '
'system\'s configuration.')
self.log.command('echo "TLS_CACERTDIR /etc/openldap/cacerts" >> '
'/etc/ldap/ldap.conf\n')
@register()
class config_freebsd_nss_pam_ldapd(config_base_legacy_client):
"""
Legacy client configuration for FreeBSD, using nss-pam-ldapd.
"""
description = ('Instructions for configuring a FreeBSD system with '
'nss-pam-ldapd. ')
def get_info(self):
uri, base = self.get_uri_and_base()
cacrt = '/usr/local/etc/ipa.crt'
self.check_compat_plugin()
with open(os.path.join(
paths.USR_SHARE_IPA_DIR,
'advise',
'legacy',
'pam_conf_sshd.template')) as fd:
pam_conf = fd.read()
self.log.comment('Install required packages')
self.log.command('pkg_add -r nss-pam-ldapd curl\n')
self.configure_ca_cert(cacrt)
self.log.comment('Configure nsswitch.conf')
self.log.command('sed -i \'\' -e \'s/^passwd:/passwd: files ldap/\' '
'/etc/nsswitch.conf')
self.log.command('sed -i \'\' -e \'s/^group:/group: files ldap/\' '
'/etc/nsswitch.conf\n')
self.log.comment('Configure PAM stack for the sshd service')
self.log.command('cat > /etc/pam.d/sshd << EOF \n'
'%s\nEOF\n' % pam_conf)
self.log.comment('Add automated start of nslcd to /etc/rc.conf')
self.log.command('echo \'nslcd_enable="YES"\nnslcd_debug="NO"\' >> '
'/etc/rc.conf')
self.log.comment('Configure nslcd.conf:')
self.log.command('echo "uid nslcd\n'
'gid nslcd\n'
'uri %s\n'
'base %s\n'
'scope sub\n'
'base group cn=groups,%s\n'
'base passwd cn=users,%s\n'
'base shadow cn=users,%s\n'
'ssl start_tls\n'
'tls_cacertfile %s\n" > /usr/local/etc/nslcd.conf'
% ((uri,) + (base,)*4 + (cacrt,)))
self.log.comment('Configure ldap.conf:')
self.log.command('echo "uri %s\nbase %s\nssl start_tls\ntls_cacert %s"'
'> /usr/local/etc/ldap.conf' % (uri, base, cacrt))
self.log.comment('Restart nslcd')
self.log.command('/usr/local/etc/rc.d/nslcd restart')
def configure_ca_cert(self, cacrt):
self.log.comment('Download the CA certificate of the IPA server')
self.log.command('curl -k https://%s/ipa/config/ca.crt > '
'%s' % (api.env.host, cacrt))
@register()
class config_redhat_nss_ldap(config_base_legacy_client):
"""
Legacy client configuration for Red Hat based systems,
using nss-ldap.
"""
description = ('Instructions for configuring a system with nss-ldap '
'as a IPA client. This set of instructions is targeted '
'for platforms that include the authconfig utility, which '
'are all Red Hat based platforms.')
def get_info(self):
uri, base = self.get_uri_and_base()
self.check_compat_plugin()
self.log.comment('Install required packages via yum')
self.log.command('yum install -y curl openssl nss_ldap '
'authconfig\n')
self.configure_ca_cert()
self.log.comment('Use the authconfig to configure nsswitch.conf '
'and the PAM stack')
self.log.command('authconfig --updateall --enableldap --enableldaptls '
'--enableldapauth --ldapserver=%s --ldapbasedn=%s\n'
% (uri, base))
def configure_ca_cert(self):
self.log.comment('NOTE: IPA certificate uses the SHA-256 hash '
'function. SHA-256 was introduced in RHEL5.2. '
'Therefore, clients older than RHEL5.2 will not be '
'able to interoperate with IPA server 3.x.')
super(config_redhat_nss_ldap, self).configure_ca_cert()