mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-30 10:47:08 -06:00
acb2c3106a
When running ipa-client-install on a system whose clock is not in sync with the master, kinit fails and enrollment is aborted. Manual checking of current time at the master and adjusting on the client-to-be is then needed. The patch tries to fetch SRV records for NTP servers of the domain we aim to join and runs ntpdate to get time synchronized. If no SRV records are found, sync with IPA server itself. If that fails, warn that time might be not in sync with KDC. https://fedorahosted.org/freeipa/ticket/1773
157 lines
5.0 KiB
Python
157 lines
5.0 KiB
Python
# Authors: Karl MacMillan <kmacmillan@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, 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 ipapython import ipautil
|
|
from ipapython import services as ipaservices
|
|
import shutil
|
|
import os
|
|
|
|
ntp_conf = """# Permit time synchronization with our time source, but do not
|
|
# permit the source to query or modify the service on this system.
|
|
restrict default kod nomodify notrap nopeer noquery
|
|
restrict -6 default kod nomodify notrap nopeer noquery
|
|
|
|
# Permit all access over the loopback interface. This could
|
|
# be tightened as well, but to do so would effect some of
|
|
# the administrative functions.
|
|
restrict 127.0.0.1
|
|
restrict -6 ::1
|
|
|
|
# Hosts on local network are less restricted.
|
|
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
|
|
|
|
# Use public servers from the pool.ntp.org project.
|
|
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
|
|
server $SERVER
|
|
|
|
#broadcast 192.168.1.255 key 42 # broadcast server
|
|
#broadcastclient # broadcast client
|
|
#broadcast 224.0.1.1 key 42 # multicast server
|
|
#multicastclient 224.0.1.1 # multicast client
|
|
#manycastserver 239.255.254.254 # manycast server
|
|
#manycastclient 239.255.254.254 key 42 # manycast client
|
|
|
|
# Undisciplined Local Clock. This is a fake driver intended for backup
|
|
# and when no outside source of synchronized time is available.
|
|
server 127.127.1.0 # local clock
|
|
#fudge 127.127.1.0 stratum 10
|
|
|
|
# Drift file. Put this in a directory which the daemon can write to.
|
|
# No symbolic links allowed, either, since the daemon updates the file
|
|
# by creating a temporary in the same directory and then rename()'ing
|
|
# it to the file.
|
|
driftfile /var/lib/ntp/drift
|
|
|
|
# Key file containing the keys and key identifiers used when operating
|
|
# with symmetric key cryptography.
|
|
keys /etc/ntp/keys
|
|
|
|
# Specify the key identifiers which are trusted.
|
|
#trustedkey 4 8 42
|
|
|
|
# Specify the key identifier to use with the ntpdc utility.
|
|
#requestkey 8
|
|
|
|
# Specify the key identifier to use with the ntpq utility.
|
|
#controlkey 8
|
|
"""
|
|
|
|
ntp_sysconfig = """# Drop root to id 'ntp:ntp' by default.
|
|
OPTIONS="-x -u ntp:ntp -p /var/run/ntpd.pid"
|
|
|
|
# Set to 'yes' to sync hw clock after successful ntpdate
|
|
SYNC_HWCLOCK=yes
|
|
|
|
# Additional options for ntpdate
|
|
NTPDATE_OPTIONS=""
|
|
"""
|
|
ntp_step_tickers = """# Use IPA-provided NTP server for initial time
|
|
$SERVER
|
|
"""
|
|
def __backup_config(path, fstore = None):
|
|
if fstore:
|
|
fstore.backup_file(path)
|
|
else:
|
|
shutil.copy(path, "%s.ipasave" % (path))
|
|
|
|
def __write_config(path, content):
|
|
fd = open(path, "w")
|
|
fd.write(content)
|
|
fd.close()
|
|
|
|
def config_ntp(server_fqdn, fstore = None, sysstore = None):
|
|
path_step_tickers = "/etc/ntp/step-tickers"
|
|
path_ntp_conf = "/etc/ntp.conf"
|
|
path_ntp_sysconfig = "/etc/sysconfig/ntpd"
|
|
sub_dict = { }
|
|
sub_dict["SERVER"] = server_fqdn
|
|
|
|
nc = ipautil.template_str(ntp_conf, sub_dict)
|
|
config_step_tickers = False
|
|
|
|
|
|
if os.path.exists(path_step_tickers):
|
|
config_step_tickers = True
|
|
ns = ipautil.template_str(ntp_step_tickers, sub_dict)
|
|
__backup_config(path_step_tickers, fstore)
|
|
__write_config(path_step_tickers, ns)
|
|
ipaservices.restore_context(path_step_tickers)
|
|
|
|
if sysstore:
|
|
module = 'ntp'
|
|
sysstore.backup_state(module, "enabled", ipaservices.knownservices.ntpd.is_enabled())
|
|
if config_step_tickers:
|
|
sysstore.backup_state(module, "step-tickers", True)
|
|
|
|
__backup_config(path_ntp_conf, fstore)
|
|
__write_config(path_ntp_conf, nc)
|
|
ipaservices.restore_context(path_ntp_conf)
|
|
|
|
__backup_config(path_ntp_sysconfig, fstore)
|
|
__write_config(path_ntp_sysconfig, ntp_sysconfig)
|
|
ipaservices.restore_context(path_ntp_sysconfig)
|
|
|
|
# Set the ntpd to start on boot
|
|
ipaservices.knownservices.ntpd.enable()
|
|
|
|
# Restart ntpd
|
|
ipaservices.knownservices.ntpd.restart()
|
|
|
|
def synconce_ntp(server_fqdn):
|
|
"""
|
|
Syncs time with specified server using ntpdate.
|
|
Primarily designed to be used before Kerberos setup
|
|
to get time following the KDC time
|
|
|
|
Returns True if sync was successful
|
|
"""
|
|
ntpdate="/usr/sbin/ntpdate"
|
|
result = False
|
|
if os.path.exists(ntpdate):
|
|
# retry several times -- logic follows /etc/init.d/ntpdate
|
|
# implementation
|
|
for retry in range(0,3):
|
|
try:
|
|
ipautil.run([ntpdate, "-U", "ntp", "-s", "-b", server_fqdn])
|
|
result = True
|
|
break
|
|
except:
|
|
pass
|
|
return result
|