1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
# Authors: Karl MacMillan <kmacmillan@redhat.com>
# Authors: Simo Sorce <ssorce@redhat.com>
#
# Copyright (C) 2007-2010 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; version 2 only
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
import logging
import service
from ipapython import sysrestore
from ipapython import ipautil
class NTPInstance(service.Service):
def __init__(self, fstore=None):
service.Service.__init__(self, "ntpd")
if fstore:
self.fstore = fstore
else:
self.fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')
def __write_config(self):
self.fstore.backup_file("/etc/ntp.conf")
self.fstore.backup_file("/etc/sysconfig/ntpd")
# We use the OS variable to point it towards either the rhel
# or fedora pools. Other distros should be added in the future
# or we can get our own pool.
os = ""
if ipautil.file_exists("/etc/fedora-release"):
os = "fedora"
elif ipautil.file_exists("/etc/redhat-release"):
os = "rhel"
srv_vals = []
srv_vals.append("0.%s.pool.ntp.org" % os)
srv_vals.append("1.%s.pool.ntp.org" % os)
srv_vals.append("2.%s.pool.ntp.org" % os)
srv_vals.append("127.127.1.0")
fudge = ["fudge", "127.127.1.0", "stratum", "10"]
#read in memory, change it, then overwrite file
file_changed = False
fudge_present = False
ntpconf = []
fd = open("/etc/ntp.conf", "r")
for line in fd:
opt = line.split()
if len(opt) < 1:
ntpconf.append(line)
continue
if opt[0] == "server":
match = False
for srv in srv_vals:
if opt[1] == srv:
match = True
break
if match:
srv_vals.remove(srv)
else:
file_changed = True
line = ""
elif opt[0] == "fudge":
if opt[0:4] == fudge[0:4]:
fudge_present = True
else:
file_changed = True
line = ""
ntpconf.append(line)
if file_changed or len(srv_vals) != 0 or not fudge_present:
fd = open("/etc/ntp.conf", "w")
for line in ntpconf:
fd.write(line)
fd.write("\n### Added by IPA Installer ###\n")
if len(srv_vals) != 0:
for srv in srv_vals:
fd.write("server "+srv+"\n")
if not fudge_present:
fd.write("fudge 127.127.1.0 stratum 10\n")
fd.close()
#read in memory, find OPTIONS, check/change it, then overwrite file
needopts = [ {'val':'-x', 'need':True},
{'val':'-g', 'need':True} ]
fd = open("/etc/sysconfig/ntpd", "r")
lines = fd.readlines()
fd.close()
for line in lines:
sline = line.strip()
if not sline.startswith('OPTIONS'):
continue
sline = sline.replace('"', '')
for opt in needopts:
if sline.find(opt['val']) != -1:
opt['need'] = False
newopts = []
for opt in needopts:
if opt['need']:
newopts.append(opt['val'])
done = False
if newopts:
fd = open("/etc/sysconfig/ntpd", "w")
for line in lines:
if not done:
sline = line.strip()
if not sline.startswith('OPTIONS'):
fd.write(line)
continue
sline = sline.replace('"', '')
(variable, opts) = sline.split('=', 1)
fd.write('OPTIONS="%s %s"\n' % (opts, ' '.join(newopts)))
done = True
else:
fd.write(line)
fd.close()
def __stop(self):
self.backup_state("running", self.is_running())
self.stop()
def __start(self):
self.start()
def __enable(self):
self.backup_state("enabled", self.is_enabled())
self.chkconfig_on()
def create_instance(self):
# we might consider setting the date manually using ntpd -qg in case
# the current time is very far off.
self.step("stopping ntpd", self.__stop)
self.step("writing configuration", self.__write_config)
self.step("configuring ntpd to start on boot", self.__enable)
self.step("starting ntpd", self.__start)
self.start_creation("Configuring ntpd")
def uninstall(self):
if self.is_configured():
self.print_msg("Unconfiguring %s" % self.service_name)
running = self.restore_state("running")
enabled = self.restore_state("enabled")
if not running is None:
self.stop()
try:
self.fstore.restore_file("/etc/ntp.conf")
except ValueError, error:
logging.debug(error)
pass
if not enabled is None and not enabled:
self.chkconfig_off()
if not running is None and running:
self.start()
|
