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- Committer: Teddy Hogeborn
- Date: 2009-01-18 10:56:33 UTC
- Revision ID: teddy@fukt.bsnet.se-20090118105633-mbv0h5auszo1rsak
* mandos (Client.GetAllProperties): Also send Client.dbus_object_path
as property "object_path".
(main/MandosServer.ClientRemoved): Change signature to "os". All
emitters changed.
(main/MandosServer.RemoveClientByName): New.
as property "object_path".
(main/MandosServer.ClientRemoved): Change signature to "os". All
emitters changed.
(main/MandosServer.RemoveClientByName): New.
- files removed:
- DBUS-API
- debian/source
- files modified:
- .bzrignore
added
removed
mandos
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
# methods "add", "remove", "server_state_changed",
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
# "AvahiService" class, and some lines in "main".
9
# methods "add" and "remove" in the "AvahiService" class, the
10
# "server_state_changed" and "entry_group_state_changed" functions,
11
# and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
31
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
34
from __future__ import division, with_statement, absolute_import
36
35
37
import SocketServer as socketserver
36
import SocketServer
38
37
import socket
39
import argparse
38
import optparse
40
39
import datetime
41
40
import errno
42
41
import gnutls.crypto
45
44
import gnutls.library.functions
46
45
import gnutls.library.constants
47
46
import gnutls.library.types
48
import ConfigParser as configparser
47
import ConfigParser
49
48
import sys
50
49
import re
51
50
import os
52
51
import signal
52
from sets import Set
53
53
import subprocess
54
54
import atexit
55
55
import stat
56
56
import logging
57
57
import logging.handlers
58
58
import pwd
59
import contextlib
60
import struct
61
import fcntl
62
import functools
63
import cPickle as pickle
64
import multiprocessing
59
from contextlib import closing
65
60
66
61
import dbus
67
62
import dbus.service
70
65
from dbus.mainloop.glib import DBusGMainLoop
71
66
import ctypes
72
67
import ctypes.util
73
import xml.dom.minidom
74
import inspect
75
76
try:
77
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
78
except AttributeError:
79
try:
80
from IN import SO_BINDTODEVICE
81
except ImportError:
82
SO_BINDTODEVICE = None
83
84
85
version = "1.3.0"
86
87
#logger = logging.getLogger('mandos')
68
69
version = "1.0.5"
70
88
71
logger = logging.Logger('mandos')
89
72
syslogger = (logging.handlers.SysLogHandler
90
73
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
74
address = "/dev/log"))
92
75
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
76
('Mandos: %(levelname)s: %(message)s'))
95
77
logger.addHandler(syslogger)
96
78
97
79
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
80
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
100
81
' %(message)s'))
101
82
logger.addHandler(console)
102
83
116
97
117
98
class AvahiService(object):
118
99
"""An Avahi (Zeroconf) service.
119
120
100
Attributes:
121
101
interface: integer; avahi.IF_UNSPEC or an interface index.
122
102
Used to optionally bind to the specified interface.
130
110
max_renames: integer; maximum number of renames
131
111
rename_count: integer; counter so we only rename after collisions
132
112
a sensible number of times
133
group: D-Bus Entry Group
134
server: D-Bus Server
135
bus: dbus.SystemBus()
136
113
"""
137
114
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
115
servicetype = None, port = None, TXT = None,
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
116
domain = "", host = "", max_renames = 32768):
141
117
self.interface = interface
142
118
self.name = name
143
119
self.type = servicetype
147
123
self.host = host
148
124
self.rename_count = 0
149
125
self.max_renames = max_renames
150
self.protocol = protocol
151
self.group = None # our entry group
152
self.server = None
153
self.bus = bus
154
self.entry_group_state_changed_match = None
155
126
def rename(self):
156
127
"""Derived from the Avahi example code"""
157
128
if self.rename_count >= self.max_renames:
158
logger.critical("No suitable Zeroconf service name found"
159
" after %i retries, exiting.",
129
logger.critical(u"No suitable Zeroconf service name found"
130
u" after %i retries, exiting.",
160
131
self.rename_count)
161
raise AvahiServiceError("Too many renames")
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
163
logger.info("Changing Zeroconf service name to %r ...",
164
self.name)
132
raise AvahiServiceError(u"Too many renames")
133
self.name = server.GetAlternativeServiceName(self.name)
134
logger.info(u"Changing Zeroconf service name to %r ...",
135
str(self.name))
165
136
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
169
139
self.remove()
170
try:
171
self.add()
172
except dbus.exceptions.DBusException as error:
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
140
self.add()
176
141
self.rename_count += 1
177
142
def remove(self):
178
143
"""Derived from the Avahi example code"""
179
if self.entry_group_state_changed_match is not None:
180
self.entry_group_state_changed_match.remove()
181
self.entry_group_state_changed_match = None
182
if self.group is not None:
183
self.group.Reset()
144
if group is not None:
145
group.Reset()
184
146
def add(self):
185
147
"""Derived from the Avahi example code"""
186
self.remove()
187
if self.group is None:
188
self.group = dbus.Interface(
189
self.bus.get_object(avahi.DBUS_NAME,
190
self.server.EntryGroupNew()),
191
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
self.entry_group_state_changed_match = (
193
self.group.connect_to_signal(
194
'StateChanged', self .entry_group_state_changed))
195
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
196
self.name, self.type)
197
self.group.AddService(
198
self.interface,
199
self.protocol,
200
dbus.UInt32(0), # flags
201
self.name, self.type,
202
self.domain, self.host,
203
dbus.UInt16(self.port),
204
avahi.string_array_to_txt_array(self.TXT))
205
self.group.Commit()
206
def entry_group_state_changed(self, state, error):
207
"""Derived from the Avahi example code"""
208
logger.debug("Avahi entry group state change: %i", state)
209
210
if state == avahi.ENTRY_GROUP_ESTABLISHED:
211
logger.debug("Zeroconf service established.")
212
elif state == avahi.ENTRY_GROUP_COLLISION:
213
logger.info("Zeroconf service name collision.")
214
self.rename()
215
elif state == avahi.ENTRY_GROUP_FAILURE:
216
logger.critical("Avahi: Error in group state changed %s",
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
220
def cleanup(self):
221
"""Derived from the Avahi example code"""
222
if self.group is not None:
223
try:
224
self.group.Free()
225
except (dbus.exceptions.UnknownMethodException,
226
dbus.exceptions.DBusException) as e:
227
pass
228
self.group = None
229
self.remove()
230
def server_state_changed(self, state, error=None):
231
"""Derived from the Avahi example code"""
232
logger.debug("Avahi server state change: %i", state)
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
240
if state in bad_states:
241
if bad_states[state] is not None:
242
if error is None:
243
logger.error(bad_states[state])
244
else:
245
logger.error(bad_states[state] + ": %r", error)
246
self.cleanup()
247
elif state == avahi.SERVER_RUNNING:
248
self.add()
249
else:
250
if error is None:
251
logger.debug("Unknown state: %r", state)
252
else:
253
logger.debug("Unknown state: %r: %r", state, error)
254
def activate(self):
255
"""Derived from the Avahi example code"""
256
if self.server is None:
257
self.server = dbus.Interface(
258
self.bus.get_object(avahi.DBUS_NAME,
259
avahi.DBUS_PATH_SERVER,
260
follow_name_owner_changes=True),
261
avahi.DBUS_INTERFACE_SERVER)
262
self.server.connect_to_signal("StateChanged",
263
self.server_state_changed)
264
self.server_state_changed(self.server.GetState())
265
266
267
class Client(object):
148
global group
149
if group is None:
150
group = dbus.Interface(bus.get_object
151
(avahi.DBUS_NAME,
152
server.EntryGroupNew()),
153
avahi.DBUS_INTERFACE_ENTRY_GROUP)
154
group.connect_to_signal('StateChanged',
155
entry_group_state_changed)
156
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
157
service.name, service.type)
158
group.AddService(
159
self.interface, # interface
160
avahi.PROTO_INET6, # protocol
161
dbus.UInt32(0), # flags
162
self.name, self.type,
163
self.domain, self.host,
164
dbus.UInt16(self.port),
165
avahi.string_array_to_txt_array(self.TXT))
166
group.Commit()
167
168
# From the Avahi example code:
169
group = None # our entry group
170
# End of Avahi example code
171
172
173
def _datetime_to_dbus(dt, variant_level=0):
174
"""Convert a UTC datetime.datetime() to a D-Bus type."""
175
return dbus.String(dt.isoformat(), variant_level=variant_level)
176
177
178
class Client(dbus.service.Object):
268
179
"""A representation of a client host served by this server.
269
270
180
Attributes:
271
_approved: bool(); 'None' if not yet approved/disapproved
272
approval_delay: datetime.timedelta(); Time to wait for approval
273
approval_duration: datetime.timedelta(); Duration of one approval
181
name: string; from the config file, used in log messages and
182
D-Bus identifiers
183
fingerprint: string (40 or 32 hexadecimal digits); used to
184
uniquely identify the client
185
secret: bytestring; sent verbatim (over TLS) to client
186
host: string; available for use by the checker command
187
created: datetime.datetime(); (UTC) object creation
188
last_enabled: datetime.datetime(); (UTC)
189
enabled: bool()
190
last_checked_ok: datetime.datetime(); (UTC) or None
191
timeout: datetime.timedelta(); How long from last_checked_ok
192
until this client is invalid
193
interval: datetime.timedelta(); How often to start a new checker
194
disable_hook: If set, called by disable() as disable_hook(self)
274
195
checker: subprocess.Popen(); a running checker process used
275
196
to see if the client lives.
276
197
'None' if no process is running.
277
checker_callback_tag: a gobject event source tag, or None
278
checker_command: string; External command which is run to check
279
if client lives. %() expansions are done at
198
checker_initiator_tag: a gobject event source tag, or None
199
disable_initiator_tag: - '' -
200
checker_callback_tag: - '' -
201
checker_command: string; External command which is run to check if
202
client lives. %() expansions are done at
280
203
runtime with vars(self) as dict, so that for
281
204
instance %(name)s can be used in the command.
282
checker_initiator_tag: a gobject event source tag, or None
283
created: datetime.datetime(); (UTC) object creation
284
current_checker_command: string; current running checker_command
285
disable_hook: If set, called by disable() as disable_hook(self)
286
disable_initiator_tag: a gobject event source tag, or None
287
enabled: bool()
288
fingerprint: string (40 or 32 hexadecimal digits); used to
289
uniquely identify the client
290
host: string; available for use by the checker command
291
interval: datetime.timedelta(); How often to start a new checker
292
last_approval_request: datetime.datetime(); (UTC) or None
293
last_checked_ok: datetime.datetime(); (UTC) or None
294
last_enabled: datetime.datetime(); (UTC)
295
name: string; from the config file, used in log messages and
296
D-Bus identifiers
297
secret: bytestring; sent verbatim (over TLS) to client
298
timeout: datetime.timedelta(); How long from last_checked_ok
299
until this client is disabled
300
runtime_expansions: Allowed attributes for runtime expansion.
205
use_dbus: bool(); Whether to provide D-Bus interface and signals
206
dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
301
207
"""
302
303
runtime_expansions = ("approval_delay", "approval_duration",
304
"created", "enabled", "fingerprint",
305
"host", "interval", "last_checked_ok",
306
"last_enabled", "name", "timeout")
307
308
@staticmethod
309
def _timedelta_to_milliseconds(td):
310
"Convert a datetime.timedelta() to milliseconds"
311
return ((td.days * 24 * 60 * 60 * 1000)
312
+ (td.seconds * 1000)
313
+ (td.microseconds // 1000))
314
315
208
def timeout_milliseconds(self):
316
209
"Return the 'timeout' attribute in milliseconds"
317
return self._timedelta_to_milliseconds(self.timeout)
210
return ((self.timeout.days * 24 * 60 * 60 * 1000)
211
+ (self.timeout.seconds * 1000)
212
+ (self.timeout.microseconds // 1000))
318
213
319
214
def interval_milliseconds(self):
320
215
"Return the 'interval' attribute in milliseconds"
321
return self._timedelta_to_milliseconds(self.interval)
322
323
def approval_delay_milliseconds(self):
324
return self._timedelta_to_milliseconds(self.approval_delay)
216
return ((self.interval.days * 24 * 60 * 60 * 1000)
217
+ (self.interval.seconds * 1000)
218
+ (self.interval.microseconds // 1000))
325
219
326
def __init__(self, name = None, disable_hook=None, config=None):
220
def __init__(self, name = None, disable_hook=None, config=None,
221
use_dbus=True):
327
222
"""Note: the 'checker' key in 'config' sets the
328
223
'checker_command' attribute and *not* the 'checker'
329
224
attribute."""
330
225
self.name = name
331
226
if config is None:
332
227
config = {}
333
logger.debug("Creating client %r", self.name)
228
logger.debug(u"Creating client %r", self.name)
229
self.use_dbus = use_dbus
230
if self.use_dbus:
231
self.dbus_object_path = (dbus.ObjectPath
232
("/Mandos/clients/"
233
+ self.name.replace(".", "_")))
234
dbus.service.Object.__init__(self, bus,
235
self.dbus_object_path)
334
236
# Uppercase and remove spaces from fingerprint for later
335
237
# comparison purposes with return value from the fingerprint()
336
238
# function
337
239
self.fingerprint = (config["fingerprint"].upper()
338
.replace(" ", ""))
339
logger.debug(" Fingerprint: %s", self.fingerprint)
240
.replace(u" ", u""))
241
logger.debug(u" Fingerprint: %s", self.fingerprint)
340
242
if "secret" in config:
341
self.secret = config["secret"].decode("base64")
243
self.secret = config["secret"].decode(u"base64")
342
244
elif "secfile" in config:
343
with open(os.path.expanduser(os.path.expandvars
344
(config["secfile"])),
345
"rb") as secfile:
245
with closing(open(os.path.expanduser
246
(os.path.expandvars
247
(config["secfile"])))) as secfile:
346
248
self.secret = secfile.read()
347
249
else:
348
raise TypeError("No secret or secfile for client %s"
250
raise TypeError(u"No secret or secfile for client %s"
349
251
% self.name)
350
252
self.host = config.get("host", "")
351
253
self.created = datetime.datetime.utcnow()
352
254
self.enabled = False
353
self.last_approval_request = None
354
255
self.last_enabled = None
355
256
self.last_checked_ok = None
356
257
self.timeout = string_to_delta(config["timeout"])
361
262
self.disable_initiator_tag = None
362
263
self.checker_callback_tag = None
363
264
self.checker_command = config["checker"]
364
self.current_checker_command = None
365
self.last_connect = None
366
self._approved = None
367
self.approved_by_default = config.get("approved_by_default",
368
True)
369
self.approvals_pending = 0
370
self.approval_delay = string_to_delta(
371
config["approval_delay"])
372
self.approval_duration = string_to_delta(
373
config["approval_duration"])
374
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
375
265
376
def send_changedstate(self):
377
self.changedstate.acquire()
378
self.changedstate.notify_all()
379
self.changedstate.release()
380
381
266
def enable(self):
382
267
"""Start this client's checker and timeout hooks"""
383
if getattr(self, "enabled", False):
384
# Already enabled
385
return
386
self.send_changedstate()
387
268
self.last_enabled = datetime.datetime.utcnow()
388
269
# Schedule a new checker to be started an 'interval' from now,
389
270
# and every interval from then on.
390
271
self.checker_initiator_tag = (gobject.timeout_add
391
272
(self.interval_milliseconds(),
392
273
self.start_checker))
274
# Also start a new checker *right now*.
275
self.start_checker()
393
276
# Schedule a disable() when 'timeout' has passed
394
277
self.disable_initiator_tag = (gobject.timeout_add
395
278
(self.timeout_milliseconds(),
396
279
self.disable))
397
280
self.enabled = True
398
# Also start a new checker *right now*.
399
self.start_checker()
281
if self.use_dbus:
282
# Emit D-Bus signals
283
self.PropertyChanged(dbus.String(u"enabled"),
284
dbus.Boolean(True, variant_level=1))
285
self.PropertyChanged(dbus.String(u"last_enabled"),
286
(_datetime_to_dbus(self.last_enabled,
287
variant_level=1)))
400
288
401
def disable(self, quiet=True):
289
def disable(self):
402
290
"""Disable this client."""
403
291
if not getattr(self, "enabled", False):
404
292
return False
405
if not quiet:
406
self.send_changedstate()
407
if not quiet:
408
logger.info("Disabling client %s", self.name)
293
logger.info(u"Disabling client %s", self.name)
409
294
if getattr(self, "disable_initiator_tag", False):
410
295
gobject.source_remove(self.disable_initiator_tag)
411
296
self.disable_initiator_tag = None
416
301
if self.disable_hook:
417
302
self.disable_hook(self)
418
303
self.enabled = False
304
if self.use_dbus:
305
# Emit D-Bus signal
306
self.PropertyChanged(dbus.String(u"enabled"),
307
dbus.Boolean(False, variant_level=1))
419
308
# Do not run this again if called by a gobject.timeout_add
420
309
return False
421
310
427
316
"""The checker has completed, so take appropriate actions."""
428
317
self.checker_callback_tag = None
429
318
self.checker = None
430
if os.WIFEXITED(condition):
431
exitstatus = os.WEXITSTATUS(condition)
432
if exitstatus == 0:
433
logger.info("Checker for %(name)s succeeded",
434
vars(self))
435
self.checked_ok()
436
else:
437
logger.info("Checker for %(name)s failed",
438
vars(self))
439
else:
440
logger.warning("Checker for %(name)s crashed?",
319
if self.use_dbus:
320
# Emit D-Bus signal
321
self.PropertyChanged(dbus.String(u"checker_running"),
322
dbus.Boolean(False, variant_level=1))
323
if (os.WIFEXITED(condition)
324
and (os.WEXITSTATUS(condition) == 0)):
325
logger.info(u"Checker for %(name)s succeeded",
326
vars(self))
327
if self.use_dbus:
328
# Emit D-Bus signal
329
self.CheckerCompleted(dbus.Boolean(True),
330
dbus.UInt16(condition),
331
dbus.String(command))
332
self.bump_timeout()
333
elif not os.WIFEXITED(condition):
334
logger.warning(u"Checker for %(name)s crashed?",
441
335
vars(self))
336
if self.use_dbus:
337
# Emit D-Bus signal
338
self.CheckerCompleted(dbus.Boolean(False),
339
dbus.UInt16(condition),
340
dbus.String(command))
341
else:
342
logger.info(u"Checker for %(name)s failed",
343
vars(self))
344
if self.use_dbus:
345
# Emit D-Bus signal
346
self.CheckerCompleted(dbus.Boolean(False),
347
dbus.UInt16(condition),
348
dbus.String(command))
442
349
443
def checked_ok(self):
350
def bump_timeout(self):
444
351
"""Bump up the timeout for this client.
445
446
352
This should only be called when the client has been seen,
447
353
alive and well.
448
354
"""
451
357
self.disable_initiator_tag = (gobject.timeout_add
452
358
(self.timeout_milliseconds(),
453
359
self.disable))
454
455
def need_approval(self):
456
self.last_approval_request = datetime.datetime.utcnow()
360
if self.use_dbus:
361
# Emit D-Bus signal
362
self.PropertyChanged(
363
dbus.String(u"last_checked_ok"),
364
(_datetime_to_dbus(self.last_checked_ok,
365
variant_level=1)))
457
366
458
367
def start_checker(self):
459
368
"""Start a new checker subprocess if one is not running.
460
461
369
If a checker already exists, leave it running and do
462
370
nothing."""
463
371
# The reason for not killing a running checker is that if we
466
374
# client would inevitably timeout, since no checker would get
467
375
# a chance to run to completion. If we instead leave running
468
376
# checkers alone, the checker would have to take more time
469
# than 'timeout' for the client to be disabled, which is as it
470
# should be.
471
472
# If a checker exists, make sure it is not a zombie
473
try:
474
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
475
except (AttributeError, OSError) as error:
476
if (isinstance(error, OSError)
477
and error.errno != errno.ECHILD):
478
raise error
479
else:
480
if pid:
481
logger.warning("Checker was a zombie")
482
gobject.source_remove(self.checker_callback_tag)
483
self.checker_callback(pid, status,
484
self.current_checker_command)
485
# Start a new checker if needed
377
# than 'timeout' for the client to be declared invalid, which
378
# is as it should be.
486
379
if self.checker is None:
487
380
try:
488
381
# In case checker_command has exactly one % operator
489
382
command = self.checker_command % self.host
490
383
except TypeError:
491
384
# Escape attributes for the shell
492
escaped_attrs = dict(
493
(attr,
494
re.escape(unicode(str(getattr(self, attr, "")),
495
errors=
496
'replace')))
497
for attr in
498
self.runtime_expansions)
499
385
escaped_attrs = dict((key, re.escape(str(val)))
386
for key, val in
387
vars(self).iteritems())
500
388
try:
501
389
command = self.checker_command % escaped_attrs
502
except TypeError as error:
503
logger.error('Could not format string "%s":'
504
' %s', self.checker_command, error)
390
except TypeError, error:
391
logger.error(u'Could not format string "%s":'
392
u' %s', self.checker_command, error)
505
393
return True # Try again later
506
self.current_checker_command = command
507
394
try:
508
logger.info("Starting checker %r for %s",
395
logger.info(u"Starting checker %r for %s",
509
396
command, self.name)
510
397
# We don't need to redirect stdout and stderr, since
511
398
# in normal mode, that is already done by daemon(),
514
401
self.checker = subprocess.Popen(command,
515
402
close_fds=True,
516
403
shell=True, cwd="/")
404
if self.use_dbus:
405
# Emit D-Bus signal
406
self.CheckerStarted(command)
407
self.PropertyChanged(
408
dbus.String("checker_running"),
409
dbus.Boolean(True, variant_level=1))
517
410
self.checker_callback_tag = (gobject.child_watch_add
518
411
(self.checker.pid,
519
412
self.checker_callback,
520
413
data=command))
521
# The checker may have completed before the gobject
522
# watch was added. Check for this.
523
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
524
if pid:
525
gobject.source_remove(self.checker_callback_tag)
526
self.checker_callback(pid, status, command)
527
except OSError as error:
528
logger.error("Failed to start subprocess: %s",
414
except OSError, error:
415
logger.error(u"Failed to start subprocess: %s",
529
416
error)
530
417
# Re-run this periodically if run by gobject.timeout_add
531
418
return True
537
424
self.checker_callback_tag = None
538
425
if getattr(self, "checker", None) is None:
539
426
return
540
logger.debug("Stopping checker for %(name)s", vars(self))
427
logger.debug(u"Stopping checker for %(name)s", vars(self))
541
428
try:
542
429
os.kill(self.checker.pid, signal.SIGTERM)
543
#time.sleep(0.5)
430
#os.sleep(0.5)
544
431
#if self.checker.poll() is None:
545
432
# os.kill(self.checker.pid, signal.SIGKILL)
546
except OSError as error:
433
except OSError, error:
547
434
if error.errno != errno.ESRCH: # No such process
548
435
raise
549
436
self.checker = None
550
551
def dbus_service_property(dbus_interface, signature="v",
552
access="readwrite", byte_arrays=False):
553
"""Decorators for marking methods of a DBusObjectWithProperties to
554
become properties on the D-Bus.
555
556
The decorated method will be called with no arguments by "Get"
557
and with one argument by "Set".
558
559
The parameters, where they are supported, are the same as
560
dbus.service.method, except there is only "signature", since the
561
type from Get() and the type sent to Set() is the same.
562
"""
563
# Encoding deeply encoded byte arrays is not supported yet by the
564
# "Set" method, so we fail early here:
565
if byte_arrays and signature != "ay":
566
raise ValueError("Byte arrays not supported for non-'ay'"
567
" signature %r" % signature)
568
def decorator(func):
569
func._dbus_is_property = True
570
func._dbus_interface = dbus_interface
571
func._dbus_signature = signature
572
func._dbus_access = access
573
func._dbus_name = func.__name__
574
if func._dbus_name.endswith("_dbus_property"):
575
func._dbus_name = func._dbus_name[:-14]
576
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
577
return func
578
return decorator
579
580
581
class DBusPropertyException(dbus.exceptions.DBusException):
582
"""A base class for D-Bus property-related exceptions
583
"""
584
def __unicode__(self):
585
return unicode(str(self))
586
587
588
class DBusPropertyAccessException(DBusPropertyException):
589
"""A property's access permissions disallows an operation.
590
"""
591
pass
592
593
594
class DBusPropertyNotFound(DBusPropertyException):
595
"""An attempt was made to access a non-existing property.
596
"""
597
pass
598
599
600
class DBusObjectWithProperties(dbus.service.Object):
601
"""A D-Bus object with properties.
602
603
Classes inheriting from this can use the dbus_service_property
604
decorator to expose methods as D-Bus properties. It exposes the
605
standard Get(), Set(), and GetAll() methods on the D-Bus.
606
"""
607
608
@staticmethod
609
def _is_dbus_property(obj):
610
return getattr(obj, "_dbus_is_property", False)
611
612
def _get_all_dbus_properties(self):
613
"""Returns a generator of (name, attribute) pairs
614
"""
615
return ((prop._dbus_name, prop)
616
for name, prop in
617
inspect.getmembers(self, self._is_dbus_property))
618
619
def _get_dbus_property(self, interface_name, property_name):
620
"""Returns a bound method if one exists which is a D-Bus
621
property with the specified name and interface.
622
"""
623
for name in (property_name,
624
property_name + "_dbus_property"):
625
prop = getattr(self, name, None)
626
if (prop is None
627
or not self._is_dbus_property(prop)
628
or prop._dbus_name != property_name
629
or (interface_name and prop._dbus_interface
630
and interface_name != prop._dbus_interface)):
631
continue
632
return prop
633
# No such property
634
raise DBusPropertyNotFound(self.dbus_object_path + ":"
635
+ interface_name + "."
636
+ property_name)
637
638
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
639
out_signature="v")
640
def Get(self, interface_name, property_name):
641
"""Standard D-Bus property Get() method, see D-Bus standard.
642
"""
643
prop = self._get_dbus_property(interface_name, property_name)
644
if prop._dbus_access == "write":
645
raise DBusPropertyAccessException(property_name)
646
value = prop()
647
if not hasattr(value, "variant_level"):
648
return value
649
return type(value)(value, variant_level=value.variant_level+1)
650
651
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
652
def Set(self, interface_name, property_name, value):
653
"""Standard D-Bus property Set() method, see D-Bus standard.
654
"""
655
prop = self._get_dbus_property(interface_name, property_name)
656
if prop._dbus_access == "read":
657
raise DBusPropertyAccessException(property_name)
658
if prop._dbus_get_args_options["byte_arrays"]:
659
# The byte_arrays option is not supported yet on
660
# signatures other than "ay".
661
if prop._dbus_signature != "ay":
662
raise ValueError
663
value = dbus.ByteArray(''.join(unichr(byte)
664
for byte in value))
665
prop(value)
666
667
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
668
out_signature="a{sv}")
669
def GetAll(self, interface_name):
670
"""Standard D-Bus property GetAll() method, see D-Bus
671
standard.
672
673
Note: Will not include properties with access="write".
674
"""
675
all = {}
676
for name, prop in self._get_all_dbus_properties():
677
if (interface_name
678
and interface_name != prop._dbus_interface):
679
# Interface non-empty but did not match
680
continue
681
# Ignore write-only properties
682
if prop._dbus_access == "write":
683
continue
684
value = prop()
685
if not hasattr(value, "variant_level"):
686
all[name] = value
687
continue
688
all[name] = type(value)(value, variant_level=
689
value.variant_level+1)
690
return dbus.Dictionary(all, signature="sv")
691
692
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
693
out_signature="s",
694
path_keyword='object_path',
695
connection_keyword='connection')
696
def Introspect(self, object_path, connection):
697
"""Standard D-Bus method, overloaded to insert property tags.
698
"""
699
xmlstring = dbus.service.Object.Introspect(self, object_path,
700
connection)
701
try:
702
document = xml.dom.minidom.parseString(xmlstring)
703
def make_tag(document, name, prop):
704
e = document.createElement("property")
705
e.setAttribute("name", name)
706
e.setAttribute("type", prop._dbus_signature)
707
e.setAttribute("access", prop._dbus_access)
708
return e
709
for if_tag in document.getElementsByTagName("interface"):
710
for tag in (make_tag(document, name, prop)
711
for name, prop
712
in self._get_all_dbus_properties()
713
if prop._dbus_interface
714
== if_tag.getAttribute("name")):
715
if_tag.appendChild(tag)
716
# Add the names to the return values for the
717
# "org.freedesktop.DBus.Properties" methods
718
if (if_tag.getAttribute("name")
719
== "org.freedesktop.DBus.Properties"):
720
for cn in if_tag.getElementsByTagName("method"):
721
if cn.getAttribute("name") == "Get":
722
for arg in cn.getElementsByTagName("arg"):
723
if (arg.getAttribute("direction")
724
== "out"):
725
arg.setAttribute("name", "value")
726
elif cn.getAttribute("name") == "GetAll":
727
for arg in cn.getElementsByTagName("arg"):
728
if (arg.getAttribute("direction")
729
== "out"):
730
arg.setAttribute("name", "props")
731
xmlstring = document.toxml("utf-8")
732
document.unlink()
733
except (AttributeError, xml.dom.DOMException,
734
xml.parsers.expat.ExpatError) as error:
735
logger.error("Failed to override Introspection method",
736
error)
737
return xmlstring
738
739
740
class ClientDBus(Client, DBusObjectWithProperties):
741
"""A Client class using D-Bus
742
743
Attributes:
744
dbus_object_path: dbus.ObjectPath
745
bus: dbus.SystemBus()
746
"""
747
748
runtime_expansions = (Client.runtime_expansions
749
+ ("dbus_object_path",))
750
751
# dbus.service.Object doesn't use super(), so we can't either.
752
753
def __init__(self, bus = None, *args, **kwargs):
754
self._approvals_pending = 0
755
self.bus = bus
756
Client.__init__(self, *args, **kwargs)
757
# Only now, when this client is initialized, can it show up on
758
# the D-Bus
759
client_object_name = unicode(self.name).translate(
760
{ord("."): ord("_"),
761
ord("-"): ord("_")})
762
self.dbus_object_path = (dbus.ObjectPath
763
("/clients/" + client_object_name))
764
DBusObjectWithProperties.__init__(self, self.bus,
765
self.dbus_object_path)
766
767
def _get_approvals_pending(self):
768
return self._approvals_pending
769
def _set_approvals_pending(self, value):
770
old_value = self._approvals_pending
771
self._approvals_pending = value
772
bval = bool(value)
773
if (hasattr(self, "dbus_object_path")
774
and bval is not bool(old_value)):
775
dbus_bool = dbus.Boolean(bval, variant_level=1)
776
self.PropertyChanged(dbus.String("ApprovalPending"),
777
dbus_bool)
778
779
approvals_pending = property(_get_approvals_pending,
780
_set_approvals_pending)
781
del _get_approvals_pending, _set_approvals_pending
782
783
@staticmethod
784
def _datetime_to_dbus(dt, variant_level=0):
785
"""Convert a UTC datetime.datetime() to a D-Bus type."""
786
return dbus.String(dt.isoformat(),
787
variant_level=variant_level)
788
789
def enable(self):
790
oldstate = getattr(self, "enabled", False)
791
r = Client.enable(self)
792
if oldstate != self.enabled:
793
# Emit D-Bus signals
794
self.PropertyChanged(dbus.String("Enabled"),
795
dbus.Boolean(True, variant_level=1))
796
self.PropertyChanged(
797
dbus.String("LastEnabled"),
798
self._datetime_to_dbus(self.last_enabled,
799
variant_level=1))
800
return r
801
802
def disable(self, quiet = False):
803
oldstate = getattr(self, "enabled", False)
804
r = Client.disable(self, quiet=quiet)
805
if not quiet and oldstate != self.enabled:
806
# Emit D-Bus signal
807
self.PropertyChanged(dbus.String("Enabled"),
808
dbus.Boolean(False, variant_level=1))
809
return r
810
811
def __del__(self, *args, **kwargs):
812
try:
813
self.remove_from_connection()
814
except LookupError:
815
pass
816
if hasattr(DBusObjectWithProperties, "__del__"):
817
DBusObjectWithProperties.__del__(self, *args, **kwargs)
818
Client.__del__(self, *args, **kwargs)
819
820
def checker_callback(self, pid, condition, command,
821
*args, **kwargs):
822
self.checker_callback_tag = None
823
self.checker = None
824
# Emit D-Bus signal
825
self.PropertyChanged(dbus.String("CheckerRunning"),
826
dbus.Boolean(False, variant_level=1))
827
if os.WIFEXITED(condition):
828
exitstatus = os.WEXITSTATUS(condition)
829
# Emit D-Bus signal
830
self.CheckerCompleted(dbus.Int16(exitstatus),
831
dbus.Int64(condition),
832
dbus.String(command))
833
else:
834
# Emit D-Bus signal
835
self.CheckerCompleted(dbus.Int16(-1),
836
dbus.Int64(condition),
837
dbus.String(command))
838
839
return Client.checker_callback(self, pid, condition, command,
840
*args, **kwargs)
841
842
def checked_ok(self, *args, **kwargs):
843
Client.checked_ok(self, *args, **kwargs)
844
# Emit D-Bus signal
845
self.PropertyChanged(
846
dbus.String("LastCheckedOK"),
847
(self._datetime_to_dbus(self.last_checked_ok,
848
variant_level=1)))
849
850
def need_approval(self, *args, **kwargs):
851
r = Client.need_approval(self, *args, **kwargs)
852
# Emit D-Bus signal
853
self.PropertyChanged(
854
dbus.String("LastApprovalRequest"),
855
(self._datetime_to_dbus(self.last_approval_request,
856
variant_level=1)))
857
return r
858
859
def start_checker(self, *args, **kwargs):
860
old_checker = self.checker
861
if self.checker is not None:
862
old_checker_pid = self.checker.pid
863
else:
864
old_checker_pid = None
865
r = Client.start_checker(self, *args, **kwargs)
866
# Only if new checker process was started
867
if (self.checker is not None
868
and old_checker_pid != self.checker.pid):
869
# Emit D-Bus signal
870
self.CheckerStarted(self.current_checker_command)
871
self.PropertyChanged(
872
dbus.String("CheckerRunning"),
873
dbus.Boolean(True, variant_level=1))
874
return r
875
876
def stop_checker(self, *args, **kwargs):
877
old_checker = getattr(self, "checker", None)
878
r = Client.stop_checker(self, *args, **kwargs)
879
if (old_checker is not None
880
and getattr(self, "checker", None) is None):
881
self.PropertyChanged(dbus.String("CheckerRunning"),
882
dbus.Boolean(False, variant_level=1))
883
return r
884
885
def _reset_approved(self):
886
self._approved = None
887
return False
888
889
def approve(self, value=True):
890
self.send_changedstate()
891
self._approved = value
892
gobject.timeout_add(self._timedelta_to_milliseconds
893
(self.approval_duration),
894
self._reset_approved)
895
896
897
## D-Bus methods, signals & properties
898
_interface = "se.bsnet.fukt.Mandos.Client"
899
900
## Signals
437
if self.use_dbus:
438
self.PropertyChanged(dbus.String(u"checker_running"),
439
dbus.Boolean(False, variant_level=1))
440
441
def still_valid(self):
442
"""Has the timeout not yet passed for this client?"""
443
if not getattr(self, "enabled", False):
444
return False
445
now = datetime.datetime.utcnow()
446
if self.last_checked_ok is None:
447
return now < (self.created + self.timeout)
448
else:
449
return now < (self.last_checked_ok + self.timeout)
450
451
## D-Bus methods & signals
452
_interface = u"org.mandos_system.Mandos.Client"
453
454
# BumpTimeout - method
455
BumpTimeout = dbus.service.method(_interface)(bump_timeout)
456
BumpTimeout.__name__ = "BumpTimeout"
901
457
902
458
# CheckerCompleted - signal
903
@dbus.service.signal(_interface, signature="nxs")
904
def CheckerCompleted(self, exitcode, waitstatus, command):
459
@dbus.service.signal(_interface, signature="bqs")
460
def CheckerCompleted(self, success, condition, command):
905
461
"D-Bus signal"
906
462
pass
907
463
911
467
"D-Bus signal"
912
468
pass
913
469
470
# GetAllProperties - method
471
@dbus.service.method(_interface, out_signature="a{sv}")
472
def GetAllProperties(self):
473
"D-Bus method"
474
return dbus.Dictionary({
475
dbus.String("name"):
476
dbus.String(self.name, variant_level=1),
477
dbus.String("fingerprint"):
478
dbus.String(self.fingerprint, variant_level=1),
479
dbus.String("host"):
480
dbus.String(self.host, variant_level=1),
481
dbus.String("created"):
482
_datetime_to_dbus(self.created, variant_level=1),
483
dbus.String("last_enabled"):
484
(_datetime_to_dbus(self.last_enabled,
485
variant_level=1)
486
if self.last_enabled is not None
487
else dbus.Boolean(False, variant_level=1)),
488
dbus.String("enabled"):
489
dbus.Boolean(self.enabled, variant_level=1),
490
dbus.String("last_checked_ok"):
491
(_datetime_to_dbus(self.last_checked_ok,
492
variant_level=1)
493
if self.last_checked_ok is not None
494
else dbus.Boolean (False, variant_level=1)),
495
dbus.String("timeout"):
496
dbus.UInt64(self.timeout_milliseconds(),
497
variant_level=1),
498
dbus.String("interval"):
499
dbus.UInt64(self.interval_milliseconds(),
500
variant_level=1),
501
dbus.String("checker"):
502
dbus.String(self.checker_command,
503
variant_level=1),
504
dbus.String("checker_running"):
505
dbus.Boolean(self.checker is not None,
506
variant_level=1),
507
dbus.String("object_path"):
508
dbus.ObjectPath(self.dbus_object_path,
509
variant_level=1)
510
}, signature="sv")
511
512
# IsStillValid - method
513
IsStillValid = (dbus.service.method(_interface, out_signature="b")
514
(still_valid))
515
IsStillValid.__name__ = "IsStillValid"
516
914
517
# PropertyChanged - signal
915
518
@dbus.service.signal(_interface, signature="sv")
916
519
def PropertyChanged(self, property, value):
917
520
"D-Bus signal"
918
521
pass
919
522
920
# GotSecret - signal
921
@dbus.service.signal(_interface)
922
def GotSecret(self):
923
"""D-Bus signal
924
Is sent after a successful transfer of secret from the Mandos
925
server to mandos-client
926
"""
927
pass
928
929
# Rejected - signal
930
@dbus.service.signal(_interface, signature="s")
931
def Rejected(self, reason):
932
"D-Bus signal"
933
pass
934
935
# NeedApproval - signal
936
@dbus.service.signal(_interface, signature="tb")
937
def NeedApproval(self, timeout, default):
938
"D-Bus signal"
939
return self.need_approval()
940
941
## Methods
942
943
# Approve - method
944
@dbus.service.method(_interface, in_signature="b")
945
def Approve(self, value):
946
self.approve(value)
947
948
# CheckedOK - method
949
@dbus.service.method(_interface)
950
def CheckedOK(self):
951
self.checked_ok()
523
# SetChecker - method
524
@dbus.service.method(_interface, in_signature="s")
525
def SetChecker(self, checker):
526
"D-Bus setter method"
527
self.checker_command = checker
528
# Emit D-Bus signal
529
self.PropertyChanged(dbus.String(u"checker"),
530
dbus.String(self.checker_command,
531
variant_level=1))
532
533
# SetHost - method
534
@dbus.service.method(_interface, in_signature="s")
535
def SetHost(self, host):
536
"D-Bus setter method"
537
self.host = host
538
# Emit D-Bus signal
539
self.PropertyChanged(dbus.String(u"host"),
540
dbus.String(self.host, variant_level=1))
541
542
# SetInterval - method
543
@dbus.service.method(_interface, in_signature="t")
544
def SetInterval(self, milliseconds):
545
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
546
# Emit D-Bus signal
547
self.PropertyChanged(dbus.String(u"interval"),
548
(dbus.UInt64(self.interval_milliseconds(),
549
variant_level=1)))
550
551
# SetSecret - method
552
@dbus.service.method(_interface, in_signature="ay",
553
byte_arrays=True)
554
def SetSecret(self, secret):
555
"D-Bus setter method"
556
self.secret = str(secret)
557
558
# SetTimeout - method
559
@dbus.service.method(_interface, in_signature="t")
560
def SetTimeout(self, milliseconds):
561
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
562
# Emit D-Bus signal
563
self.PropertyChanged(dbus.String(u"timeout"),
564
(dbus.UInt64(self.timeout_milliseconds(),
565
variant_level=1)))
952
566
953
567
# Enable - method
954
@dbus.service.method(_interface)
955
def Enable(self):
956
"D-Bus method"
957
self.enable()
568
Enable = dbus.service.method(_interface)(enable)
569
Enable.__name__ = "Enable"
958
570
959
571
# StartChecker - method
960
572
@dbus.service.method(_interface)
969
581
self.disable()
970
582
971
583
# StopChecker - method
972
@dbus.service.method(_interface)
973
def StopChecker(self):
974
self.stop_checker()
975
976
## Properties
977
978
# ApprovalPending - property
979
@dbus_service_property(_interface, signature="b", access="read")
980
def ApprovalPending_dbus_property(self):
981
return dbus.Boolean(bool(self.approvals_pending))
982
983
# ApprovedByDefault - property
984
@dbus_service_property(_interface, signature="b",
985
access="readwrite")
986
def ApprovedByDefault_dbus_property(self, value=None):
987
if value is None: # get
988
return dbus.Boolean(self.approved_by_default)
989
self.approved_by_default = bool(value)
990
# Emit D-Bus signal
991
self.PropertyChanged(dbus.String("ApprovedByDefault"),
992
dbus.Boolean(value, variant_level=1))
993
994
# ApprovalDelay - property
995
@dbus_service_property(_interface, signature="t",
996
access="readwrite")
997
def ApprovalDelay_dbus_property(self, value=None):
998
if value is None: # get
999
return dbus.UInt64(self.approval_delay_milliseconds())
1000
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1001
# Emit D-Bus signal
1002
self.PropertyChanged(dbus.String("ApprovalDelay"),
1003
dbus.UInt64(value, variant_level=1))
1004
1005
# ApprovalDuration - property
1006
@dbus_service_property(_interface, signature="t",
1007
access="readwrite")
1008
def ApprovalDuration_dbus_property(self, value=None):
1009
if value is None: # get
1010
return dbus.UInt64(self._timedelta_to_milliseconds(
1011
self.approval_duration))
1012
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1013
# Emit D-Bus signal
1014
self.PropertyChanged(dbus.String("ApprovalDuration"),
1015
dbus.UInt64(value, variant_level=1))
1016
1017
# Name - property
1018
@dbus_service_property(_interface, signature="s", access="read")
1019
def Name_dbus_property(self):
1020
return dbus.String(self.name)
1021
1022
# Fingerprint - property
1023
@dbus_service_property(_interface, signature="s", access="read")
1024
def Fingerprint_dbus_property(self):
1025
return dbus.String(self.fingerprint)
1026
1027
# Host - property
1028
@dbus_service_property(_interface, signature="s",
1029
access="readwrite")
1030
def Host_dbus_property(self, value=None):
1031
if value is None: # get
1032
return dbus.String(self.host)
1033
self.host = value
1034
# Emit D-Bus signal
1035
self.PropertyChanged(dbus.String("Host"),
1036
dbus.String(value, variant_level=1))
1037
1038
# Created - property
1039
@dbus_service_property(_interface, signature="s", access="read")
1040
def Created_dbus_property(self):
1041
return dbus.String(self._datetime_to_dbus(self.created))
1042
1043
# LastEnabled - property
1044
@dbus_service_property(_interface, signature="s", access="read")
1045
def LastEnabled_dbus_property(self):
1046
if self.last_enabled is None:
1047
return dbus.String("")
1048
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1049
1050
# Enabled - property
1051
@dbus_service_property(_interface, signature="b",
1052
access="readwrite")
1053
def Enabled_dbus_property(self, value=None):
1054
if value is None: # get
1055
return dbus.Boolean(self.enabled)
1056
if value:
1057
self.enable()
1058
else:
1059
self.disable()
1060
1061
# LastCheckedOK - property
1062
@dbus_service_property(_interface, signature="s",
1063
access="readwrite")
1064
def LastCheckedOK_dbus_property(self, value=None):
1065
if value is not None:
1066
self.checked_ok()
1067
return
1068
if self.last_checked_ok is None:
1069
return dbus.String("")
1070
return dbus.String(self._datetime_to_dbus(self
1071
.last_checked_ok))
1072
1073
# LastApprovalRequest - property
1074
@dbus_service_property(_interface, signature="s", access="read")
1075
def LastApprovalRequest_dbus_property(self):
1076
if self.last_approval_request is None:
1077
return dbus.String("")
1078
return dbus.String(self.
1079
_datetime_to_dbus(self
1080
.last_approval_request))
1081
1082
# Timeout - property
1083
@dbus_service_property(_interface, signature="t",
1084
access="readwrite")
1085
def Timeout_dbus_property(self, value=None):
1086
if value is None: # get
1087
return dbus.UInt64(self.timeout_milliseconds())
1088
self.timeout = datetime.timedelta(0, 0, 0, value)
1089
# Emit D-Bus signal
1090
self.PropertyChanged(dbus.String("Timeout"),
1091
dbus.UInt64(value, variant_level=1))
1092
if getattr(self, "disable_initiator_tag", None) is None:
1093
return
1094
# Reschedule timeout
1095
gobject.source_remove(self.disable_initiator_tag)
1096
self.disable_initiator_tag = None
1097
time_to_die = (self.
1098
_timedelta_to_milliseconds((self
1099
.last_checked_ok
1100
+ self.timeout)
1101
- datetime.datetime
1102
.utcnow()))
1103
if time_to_die <= 0:
1104
# The timeout has passed
1105
self.disable()
1106
else:
1107
self.disable_initiator_tag = (gobject.timeout_add
1108
(time_to_die, self.disable))
1109
1110
# Interval - property
1111
@dbus_service_property(_interface, signature="t",
1112
access="readwrite")
1113
def Interval_dbus_property(self, value=None):
1114
if value is None: # get
1115
return dbus.UInt64(self.interval_milliseconds())
1116
self.interval = datetime.timedelta(0, 0, 0, value)
1117
# Emit D-Bus signal
1118
self.PropertyChanged(dbus.String("Interval"),
1119
dbus.UInt64(value, variant_level=1))
1120
if getattr(self, "checker_initiator_tag", None) is None:
1121
return
1122
# Reschedule checker run
1123
gobject.source_remove(self.checker_initiator_tag)
1124
self.checker_initiator_tag = (gobject.timeout_add
1125
(value, self.start_checker))
1126
self.start_checker() # Start one now, too
1127
1128
# Checker - property
1129
@dbus_service_property(_interface, signature="s",
1130
access="readwrite")
1131
def Checker_dbus_property(self, value=None):
1132
if value is None: # get
1133
return dbus.String(self.checker_command)
1134
self.checker_command = value
1135
# Emit D-Bus signal
1136
self.PropertyChanged(dbus.String("Checker"),
1137
dbus.String(self.checker_command,
1138
variant_level=1))
1139
1140
# CheckerRunning - property
1141
@dbus_service_property(_interface, signature="b",
1142
access="readwrite")
1143
def CheckerRunning_dbus_property(self, value=None):
1144
if value is None: # get
1145
return dbus.Boolean(self.checker is not None)
1146
if value:
1147
self.start_checker()
1148
else:
1149
self.stop_checker()
1150
1151
# ObjectPath - property
1152
@dbus_service_property(_interface, signature="o", access="read")
1153
def ObjectPath_dbus_property(self):
1154
return self.dbus_object_path # is already a dbus.ObjectPath
1155
1156
# Secret = property
1157
@dbus_service_property(_interface, signature="ay",
1158
access="write", byte_arrays=True)
1159
def Secret_dbus_property(self, value):
1160
self.secret = str(value)
584
StopChecker = dbus.service.method(_interface)(stop_checker)
585
StopChecker.__name__ = "StopChecker"
1161
586
1162
587
del _interface
1163
588
1164
589
1165
class ProxyClient(object):
1166
def __init__(self, child_pipe, fpr, address):
1167
self._pipe = child_pipe
1168
self._pipe.send(('init', fpr, address))
1169
if not self._pipe.recv():
1170
raise KeyError()
1171
1172
def __getattribute__(self, name):
1173
if(name == '_pipe'):
1174
return super(ProxyClient, self).__getattribute__(name)
1175
self._pipe.send(('getattr', name))
1176
data = self._pipe.recv()
1177
if data[0] == 'data':
1178
return data[1]
1179
if data[0] == 'function':
1180
def func(*args, **kwargs):
1181
self._pipe.send(('funcall', name, args, kwargs))
1182
return self._pipe.recv()[1]
1183
return func
1184
1185
def __setattr__(self, name, value):
1186
if(name == '_pipe'):
1187
return super(ProxyClient, self).__setattr__(name, value)
1188
self._pipe.send(('setattr', name, value))
1189
1190
1191
class ClientHandler(socketserver.BaseRequestHandler, object):
1192
"""A class to handle client connections.
1193
1194
Instantiated once for each connection to handle it.
590
def peer_certificate(session):
591
"Return the peer's OpenPGP certificate as a bytestring"
592
# If not an OpenPGP certificate...
593
if (gnutls.library.functions
594
.gnutls_certificate_type_get(session._c_object)
595
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
596
# ...do the normal thing
597
return session.peer_certificate
598
list_size = ctypes.c_uint()
599
cert_list = (gnutls.library.functions
600
.gnutls_certificate_get_peers
601
(session._c_object, ctypes.byref(list_size)))
602
if list_size.value == 0:
603
return None
604
cert = cert_list[0]
605
return ctypes.string_at(cert.data, cert.size)
606
607
608
def fingerprint(openpgp):
609
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
610
# New GnuTLS "datum" with the OpenPGP public key
611
datum = (gnutls.library.types
612
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
613
ctypes.POINTER
614
(ctypes.c_ubyte)),
615
ctypes.c_uint(len(openpgp))))
616
# New empty GnuTLS certificate
617
crt = gnutls.library.types.gnutls_openpgp_crt_t()
618
(gnutls.library.functions
619
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
620
# Import the OpenPGP public key into the certificate
621
(gnutls.library.functions
622
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
623
gnutls.library.constants
624
.GNUTLS_OPENPGP_FMT_RAW))
625
# Verify the self signature in the key
626
crtverify = ctypes.c_uint()
627
(gnutls.library.functions
628
.gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
629
if crtverify.value != 0:
630
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
631
raise gnutls.errors.CertificateSecurityError("Verify failed")
632
# New buffer for the fingerprint
633
buf = ctypes.create_string_buffer(20)
634
buf_len = ctypes.c_size_t()
635
# Get the fingerprint from the certificate into the buffer
636
(gnutls.library.functions
637
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
638
ctypes.byref(buf_len)))
639
# Deinit the certificate
640
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
641
# Convert the buffer to a Python bytestring
642
fpr = ctypes.string_at(buf, buf_len.value)
643
# Convert the bytestring to hexadecimal notation
644
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
645
return hex_fpr
646
647
648
class TCP_handler(SocketServer.BaseRequestHandler, object):
649
"""A TCP request handler class.
650
Instantiated by IPv6_TCPServer for each request to handle it.
1195
651
Note: This will run in its own forked process."""
1196
652
1197
653
def handle(self):
1198
with contextlib.closing(self.server.child_pipe) as child_pipe:
1199
logger.info("TCP connection from: %s",
1200
unicode(self.client_address))
1201
logger.debug("Pipe FD: %d",
1202
self.server.child_pipe.fileno())
1203
1204
session = (gnutls.connection
1205
.ClientSession(self.request,
1206
gnutls.connection
1207
.X509Credentials()))
1208
1209
# Note: gnutls.connection.X509Credentials is really a
1210
# generic GnuTLS certificate credentials object so long as
1211
# no X.509 keys are added to it. Therefore, we can use it
1212
# here despite using OpenPGP certificates.
1213
1214
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1215
# "+AES-256-CBC", "+SHA1",
1216
# "+COMP-NULL", "+CTYPE-OPENPGP",
1217
# "+DHE-DSS"))
1218
# Use a fallback default, since this MUST be set.
1219
priority = self.server.gnutls_priority
1220
if priority is None:
1221
priority = "NORMAL"
1222
(gnutls.library.functions
1223
.gnutls_priority_set_direct(session._c_object,
1224
priority, None))
1225
1226
# Start communication using the Mandos protocol
1227
# Get protocol number
1228
line = self.request.makefile().readline()
1229
logger.debug("Protocol version: %r", line)
1230
try:
1231
if int(line.strip().split()[0]) > 1:
1232
raise RuntimeError
1233
except (ValueError, IndexError, RuntimeError) as error:
1234
logger.error("Unknown protocol version: %s", error)
1235
return
1236
1237
# Start GnuTLS connection
1238
try:
1239
session.handshake()
1240
except gnutls.errors.GNUTLSError as error:
1241
logger.warning("Handshake failed: %s", error)
1242
# Do not run session.bye() here: the session is not
1243
# established. Just abandon the request.
1244
return
1245
logger.debug("Handshake succeeded")
1246
1247
approval_required = False
1248
try:
1249
try:
1250
fpr = self.fingerprint(self.peer_certificate
1251
(session))
1252
except (TypeError,
1253
gnutls.errors.GNUTLSError) as error:
1254
logger.warning("Bad certificate: %s", error)
1255
return
1256
logger.debug("Fingerprint: %s", fpr)
1257
1258
try:
1259
client = ProxyClient(child_pipe, fpr,
1260
self.client_address)
1261
except KeyError:
1262
return
1263
1264
if client.approval_delay:
1265
delay = client.approval_delay
1266
client.approvals_pending += 1
1267
approval_required = True
1268
1269
while True:
1270
if not client.enabled:
1271
logger.info("Client %s is disabled",
1272
client.name)
1273
if self.server.use_dbus:
1274
# Emit D-Bus signal
1275
client.Rejected("Disabled")
1276
return
1277
1278
if client._approved or not client.approval_delay:
1279
#We are approved or approval is disabled
1280
break
1281
elif client._approved is None:
1282
logger.info("Client %s needs approval",
1283
client.name)
1284
if self.server.use_dbus:
1285
# Emit D-Bus signal
1286
client.NeedApproval(
1287
client.approval_delay_milliseconds(),
1288
client.approved_by_default)
1289
else:
1290
logger.warning("Client %s was not approved",
1291
client.name)
1292
if self.server.use_dbus:
1293
# Emit D-Bus signal
1294
client.Rejected("Denied")
1295
return
1296
1297
#wait until timeout or approved
1298
#x = float(client._timedelta_to_milliseconds(delay))
1299
time = datetime.datetime.now()
1300
client.changedstate.acquire()
1301
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1302
client.changedstate.release()
1303
time2 = datetime.datetime.now()
1304
if (time2 - time) >= delay:
1305
if not client.approved_by_default:
1306
logger.warning("Client %s timed out while"
1307
" waiting for approval",
1308
client.name)
1309
if self.server.use_dbus:
1310
# Emit D-Bus signal
1311
client.Rejected("Approval timed out")
1312
return
1313
else:
1314
break
1315
else:
1316
delay -= time2 - time
1317
1318
sent_size = 0
1319
while sent_size < len(client.secret):
1320
try:
1321
sent = session.send(client.secret[sent_size:])
1322
except gnutls.errors.GNUTLSError as error:
1323
logger.warning("gnutls send failed")
1324
return
1325
logger.debug("Sent: %d, remaining: %d",
1326
sent, len(client.secret)
1327
- (sent_size + sent))
1328
sent_size += sent
1329
1330
logger.info("Sending secret to %s", client.name)
1331
# bump the timeout as if seen
1332
client.checked_ok()
1333
if self.server.use_dbus:
1334
# Emit D-Bus signal
1335
client.GotSecret()
1336
1337
finally:
1338
if approval_required:
1339
client.approvals_pending -= 1
1340
try:
1341
session.bye()
1342
except gnutls.errors.GNUTLSError as error:
1343
logger.warning("GnuTLS bye failed")
1344
1345
@staticmethod
1346
def peer_certificate(session):
1347
"Return the peer's OpenPGP certificate as a bytestring"
1348
# If not an OpenPGP certificate...
1349
if (gnutls.library.functions
1350
.gnutls_certificate_type_get(session._c_object)
1351
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1352
# ...do the normal thing
1353
return session.peer_certificate
1354
list_size = ctypes.c_uint(1)
1355
cert_list = (gnutls.library.functions
1356
.gnutls_certificate_get_peers
1357
(session._c_object, ctypes.byref(list_size)))
1358
if not bool(cert_list) and list_size.value != 0:
1359
raise gnutls.errors.GNUTLSError("error getting peer"
1360
" certificate")
1361
if list_size.value == 0:
1362
return None
1363
cert = cert_list[0]
1364
return ctypes.string_at(cert.data, cert.size)
1365
1366
@staticmethod
1367
def fingerprint(openpgp):
1368
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1369
# New GnuTLS "datum" with the OpenPGP public key
1370
datum = (gnutls.library.types
1371
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1372
ctypes.POINTER
1373
(ctypes.c_ubyte)),
1374
ctypes.c_uint(len(openpgp))))
1375
# New empty GnuTLS certificate
1376
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1377
(gnutls.library.functions
1378
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1379
# Import the OpenPGP public key into the certificate
1380
(gnutls.library.functions
1381
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1382
gnutls.library.constants
1383
.GNUTLS_OPENPGP_FMT_RAW))
1384
# Verify the self signature in the key
1385
crtverify = ctypes.c_uint()
1386
(gnutls.library.functions
1387
.gnutls_openpgp_crt_verify_self(crt, 0,
1388
ctypes.byref(crtverify)))
1389
if crtverify.value != 0:
1390
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1391
raise (gnutls.errors.CertificateSecurityError
1392
("Verify failed"))
1393
# New buffer for the fingerprint
1394
buf = ctypes.create_string_buffer(20)
1395
buf_len = ctypes.c_size_t()
1396
# Get the fingerprint from the certificate into the buffer
1397
(gnutls.library.functions
1398
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1399
ctypes.byref(buf_len)))
1400
# Deinit the certificate
1401
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1402
# Convert the buffer to a Python bytestring
1403
fpr = ctypes.string_at(buf, buf_len.value)
1404
# Convert the bytestring to hexadecimal notation
1405
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1406
return hex_fpr
1407
1408
1409
class MultiprocessingMixIn(object):
1410
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1411
def sub_process_main(self, request, address):
1412
try:
1413
self.finish_request(request, address)
1414
except:
1415
self.handle_error(request, address)
1416
self.close_request(request)
1417
1418
def process_request(self, request, address):
1419
"""Start a new process to process the request."""
1420
multiprocessing.Process(target = self.sub_process_main,
1421
args = (request, address)).start()
1422
1423
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1424
""" adds a pipe to the MixIn """
1425
def process_request(self, request, client_address):
1426
"""Overrides and wraps the original process_request().
1427
1428
This function creates a new pipe in self.pipe
1429
"""
1430
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1431
1432
super(MultiprocessingMixInWithPipe,
1433
self).process_request(request, client_address)
1434
self.child_pipe.close()
1435
self.add_pipe(parent_pipe)
1436
1437
def add_pipe(self, parent_pipe):
1438
"""Dummy function; override as necessary"""
1439
raise NotImplementedError
1440
1441
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1442
socketserver.TCPServer, object):
1443
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1444
654
logger.info(u"TCP connection from: %s",
655
unicode(self.client_address))
656
session = (gnutls.connection
657
.ClientSession(self.request,
658
gnutls.connection
659
.X509Credentials()))
660
661
line = self.request.makefile().readline()
662
logger.debug(u"Protocol version: %r", line)
663
try:
664
if int(line.strip().split()[0]) > 1:
665
raise RuntimeError
666
except (ValueError, IndexError, RuntimeError), error:
667
logger.error(u"Unknown protocol version: %s", error)
668
return
669
670
# Note: gnutls.connection.X509Credentials is really a generic
671
# GnuTLS certificate credentials object so long as no X.509
672
# keys are added to it. Therefore, we can use it here despite
673
# using OpenPGP certificates.
674
675
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
676
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
677
# "+DHE-DSS"))
678
# Use a fallback default, since this MUST be set.
679
priority = self.server.settings.get("priority", "NORMAL")
680
(gnutls.library.functions
681
.gnutls_priority_set_direct(session._c_object,
682
priority, None))
683
684
try:
685
session.handshake()
686
except gnutls.errors.GNUTLSError, error:
687
logger.warning(u"Handshake failed: %s", error)
688
# Do not run session.bye() here: the session is not
689
# established. Just abandon the request.
690
return
691
try:
692
fpr = fingerprint(peer_certificate(session))
693
except (TypeError, gnutls.errors.GNUTLSError), error:
694
logger.warning(u"Bad certificate: %s", error)
695
session.bye()
696
return
697
logger.debug(u"Fingerprint: %s", fpr)
698
for c in self.server.clients:
699
if c.fingerprint == fpr:
700
client = c
701
break
702
else:
703
logger.warning(u"Client not found for fingerprint: %s",
704
fpr)
705
session.bye()
706
return
707
# Have to check if client.still_valid(), since it is possible
708
# that the client timed out while establishing the GnuTLS
709
# session.
710
if not client.still_valid():
711
logger.warning(u"Client %(name)s is invalid",
712
vars(client))
713
session.bye()
714
return
715
## This won't work here, since we're in a fork.
716
# client.bump_timeout()
717
sent_size = 0
718
while sent_size < len(client.secret):
719
sent = session.send(client.secret[sent_size:])
720
logger.debug(u"Sent: %d, remaining: %d",
721
sent, len(client.secret)
722
- (sent_size + sent))
723
sent_size += sent
724
session.bye()
725
726
727
class IPv6_TCPServer(SocketServer.ForkingMixIn,
728
SocketServer.TCPServer, object):
729
"""IPv6 TCP server. Accepts 'None' as address and/or port.
1445
730
Attributes:
731
settings: Server settings
732
clients: Set() of Client objects
1446
733
enabled: Boolean; whether this server is activated yet
1447
interface: None or a network interface name (string)
1448
use_ipv6: Boolean; to use IPv6 or not
1449
734
"""
1450
def __init__(self, server_address, RequestHandlerClass,
1451
interface=None, use_ipv6=True):
1452
self.interface = interface
1453
if use_ipv6:
1454
self.address_family = socket.AF_INET6
1455
socketserver.TCPServer.__init__(self, server_address,
1456
RequestHandlerClass)
735
address_family = socket.AF_INET6
736
def __init__(self, *args, **kwargs):
737
if "settings" in kwargs:
738
self.settings = kwargs["settings"]
739
del kwargs["settings"]
740
if "clients" in kwargs:
741
self.clients = kwargs["clients"]
742
del kwargs["clients"]
743
self.enabled = False
744
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
1457
745
def server_bind(self):
1458
746
"""This overrides the normal server_bind() function
1459
747
to bind to an interface if one was specified, and also NOT to
1460
748
bind to an address or port if they were not specified."""
1461
if self.interface is not None:
1462
if SO_BINDTODEVICE is None:
1463
logger.error("SO_BINDTODEVICE does not exist;"
1464
" cannot bind to interface %s",
1465
self.interface)
1466
else:
1467
try:
1468
self.socket.setsockopt(socket.SOL_SOCKET,
1469
SO_BINDTODEVICE,
1470
str(self.interface
1471
+ '\0'))
1472
except socket.error as error:
1473
if error[0] == errno.EPERM:
1474
logger.error("No permission to"
1475
" bind to interface %s",
1476
self.interface)
1477
elif error[0] == errno.ENOPROTOOPT:
1478
logger.error("SO_BINDTODEVICE not available;"
1479
" cannot bind to interface %s",
1480
self.interface)
1481
else:
1482
raise
749
if self.settings["interface"]:
750
# 25 is from /usr/include/asm-i486/socket.h
751
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
752
try:
753
self.socket.setsockopt(socket.SOL_SOCKET,
754
SO_BINDTODEVICE,
755
self.settings["interface"])
756
except socket.error, error:
757
if error[0] == errno.EPERM:
758
logger.error(u"No permission to"
759
u" bind to interface %s",
760
self.settings["interface"])
761
else:
762
raise error
1483
763
# Only bind(2) the socket if we really need to.
1484
764
if self.server_address[0] or self.server_address[1]:
1485
765
if not self.server_address[0]:
1486
if self.address_family == socket.AF_INET6:
1487
any_address = "::" # in6addr_any
1488
else:
1489
any_address = socket.INADDR_ANY
1490
self.server_address = (any_address,
766
in6addr_any = "::"
767
self.server_address = (in6addr_any,
1491
768
self.server_address[1])
1492
769
elif not self.server_address[1]:
1493
770
self.server_address = (self.server_address[0],
1494
771
0)
1495
# if self.interface:
772
# if self.settings["interface"]:
1496
773
# self.server_address = (self.server_address[0],
1497
774
# 0, # port
1498
775
# 0, # flowinfo
1499
776
# if_nametoindex
1500
# (self.interface))
1501
return socketserver.TCPServer.server_bind(self)
1502
1503
1504
class MandosServer(IPv6_TCPServer):
1505
"""Mandos server.
1506
1507
Attributes:
1508
clients: set of Client objects
1509
gnutls_priority GnuTLS priority string
1510
use_dbus: Boolean; to emit D-Bus signals or not
1511
1512
Assumes a gobject.MainLoop event loop.
1513
"""
1514
def __init__(self, server_address, RequestHandlerClass,
1515
interface=None, use_ipv6=True, clients=None,
1516
gnutls_priority=None, use_dbus=True):
1517
self.enabled = False
1518
self.clients = clients
1519
if self.clients is None:
1520
self.clients = set()
1521
self.use_dbus = use_dbus
1522
self.gnutls_priority = gnutls_priority
1523
IPv6_TCPServer.__init__(self, server_address,
1524
RequestHandlerClass,
1525
interface = interface,
1526
use_ipv6 = use_ipv6)
777
# (self.settings
778
# ["interface"]))
779
return super(IPv6_TCPServer, self).server_bind()
1527
780
def server_activate(self):
1528
781
if self.enabled:
1529
return socketserver.TCPServer.server_activate(self)
782
return super(IPv6_TCPServer, self).server_activate()
1530
783
def enable(self):
1531
784
self.enabled = True
1532
def add_pipe(self, parent_pipe):
1533
# Call "handle_ipc" for both data and EOF events
1534
gobject.io_add_watch(parent_pipe.fileno(),
1535
gobject.IO_IN | gobject.IO_HUP,
1536
functools.partial(self.handle_ipc,
1537
parent_pipe = parent_pipe))
1538
1539
def handle_ipc(self, source, condition, parent_pipe=None,
1540
client_object=None):
1541
condition_names = {
1542
gobject.IO_IN: "IN", # There is data to read.
1543
gobject.IO_OUT: "OUT", # Data can be written (without
1544
# blocking).
1545
gobject.IO_PRI: "PRI", # There is urgent data to read.
1546
gobject.IO_ERR: "ERR", # Error condition.
1547
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1548
# broken, usually for pipes and
1549
# sockets).
1550
}
1551
conditions_string = ' | '.join(name
1552
for cond, name in
1553
condition_names.iteritems()
1554
if cond & condition)
1555
# error or the other end of multiprocessing.Pipe has closed
1556
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1557
return False
1558
1559
# Read a request from the child
1560
request = parent_pipe.recv()
1561
command = request[0]
1562
1563
if command == 'init':
1564
fpr = request[1]
1565
address = request[2]
1566
1567
for c in self.clients:
1568
if c.fingerprint == fpr:
1569
client = c
1570
break
1571
else:
1572
logger.info("Client not found for fingerprint: %s, ad"
1573
"dress: %s", fpr, address)
1574
if self.use_dbus:
1575
# Emit D-Bus signal
1576
mandos_dbus_service.ClientNotFound(fpr, address[0])
1577
parent_pipe.send(False)
1578
return False
1579
1580
gobject.io_add_watch(parent_pipe.fileno(),
1581
gobject.IO_IN | gobject.IO_HUP,
1582
functools.partial(self.handle_ipc,
1583
parent_pipe = parent_pipe,
1584
client_object = client))
1585
parent_pipe.send(True)
1586
# remove the old hook in favor of the new above hook on same fileno
1587
return False
1588
if command == 'funcall':
1589
funcname = request[1]
1590
args = request[2]
1591
kwargs = request[3]
1592
1593
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1594
1595
if command == 'getattr':
1596
attrname = request[1]
1597
if callable(client_object.__getattribute__(attrname)):
1598
parent_pipe.send(('function',))
1599
else:
1600
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1601
1602
if command == 'setattr':
1603
attrname = request[1]
1604
value = request[2]
1605
setattr(client_object, attrname, value)
1606
1607
return True
1608
785
1609
786
1610
787
def string_to_delta(interval):
1611
788
"""Parse a string and return a datetime.timedelta
1612
789
1613
790
>>> string_to_delta('7d')
1614
791
datetime.timedelta(7)
1615
792
>>> string_to_delta('60s')
1618
795
datetime.timedelta(0, 3600)
1619
796
>>> string_to_delta('24h')
1620
797
datetime.timedelta(1)
1621
>>> string_to_delta('1w')
798
>>> string_to_delta(u'1w')
1622
799
datetime.timedelta(7)
1623
800
>>> string_to_delta('5m 30s')
1624
801
datetime.timedelta(0, 330)
1628
805
try:
1629
806
suffix = unicode(s[-1])
1630
807
value = int(s[:-1])
1631
if suffix == "d":
808
if suffix == u"d":
1632
809
delta = datetime.timedelta(value)
1633
elif suffix == "s":
810
elif suffix == u"s":
1634
811
delta = datetime.timedelta(0, value)
1635
elif suffix == "m":
812
elif suffix == u"m":
1636
813
delta = datetime.timedelta(0, 0, 0, 0, value)
1637
elif suffix == "h":
814
elif suffix == u"h":
1638
815
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1639
elif suffix == "w":
816
elif suffix == u"w":
1640
817
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1641
818
else:
1642
raise ValueError("Unknown suffix %r" % suffix)
1643
except (ValueError, IndexError) as e:
1644
raise ValueError(*(e.args))
819
raise ValueError
820
except (ValueError, IndexError):
821
raise ValueError
1645
822
timevalue += delta
1646
823
return timevalue
1647
824
1648
825
826
def server_state_changed(state):
827
"""Derived from the Avahi example code"""
828
if state == avahi.SERVER_COLLISION:
829
logger.error(u"Zeroconf server name collision")
830
service.remove()
831
elif state == avahi.SERVER_RUNNING:
832
service.add()
833
834
835
def entry_group_state_changed(state, error):
836
"""Derived from the Avahi example code"""
837
logger.debug(u"Avahi state change: %i", state)
838
839
if state == avahi.ENTRY_GROUP_ESTABLISHED:
840
logger.debug(u"Zeroconf service established.")
841
elif state == avahi.ENTRY_GROUP_COLLISION:
842
logger.warning(u"Zeroconf service name collision.")
843
service.rename()
844
elif state == avahi.ENTRY_GROUP_FAILURE:
845
logger.critical(u"Avahi: Error in group state changed %s",
846
unicode(error))
847
raise AvahiGroupError(u"State changed: %s" % unicode(error))
848
1649
849
def if_nametoindex(interface):
1650
"""Call the C function if_nametoindex(), or equivalent
1651
1652
Note: This function cannot accept a unicode string."""
850
"""Call the C function if_nametoindex(), or equivalent"""
1653
851
global if_nametoindex
1654
852
try:
1655
853
if_nametoindex = (ctypes.cdll.LoadLibrary
1656
854
(ctypes.util.find_library("c"))
1657
855
.if_nametoindex)
1658
856
except (OSError, AttributeError):
1659
logger.warning("Doing if_nametoindex the hard way")
857
if "struct" not in sys.modules:
858
import struct
859
if "fcntl" not in sys.modules:
860
import fcntl
1660
861
def if_nametoindex(interface):
1661
862
"Get an interface index the hard way, i.e. using fcntl()"
1662
863
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1663
with contextlib.closing(socket.socket()) as s:
864
with closing(socket.socket()) as s:
1664
865
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1665
struct.pack(str("16s16x"),
1666
interface))
1667
interface_index = struct.unpack(str("I"),
1668
ifreq[16:20])[0]
866
struct.pack("16s16x", interface))
867
interface_index = struct.unpack("I", ifreq[16:20])[0]
1669
868
return interface_index
1670
869
return if_nametoindex(interface)
1671
870
1672
871
1673
872
def daemon(nochdir = False, noclose = False):
1674
873
"""See daemon(3). Standard BSD Unix function.
1675
1676
874
This should really exist as os.daemon, but it doesn't (yet)."""
1677
875
if os.fork():
1678
876
sys.exit()
1686
884
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1687
885
if not stat.S_ISCHR(os.fstat(null).st_mode):
1688
886
raise OSError(errno.ENODEV,
1689
"%s not a character device"
1690
% os.path.devnull)
887
"/dev/null not a character device")
1691
888
os.dup2(null, sys.stdin.fileno())
1692
889
os.dup2(null, sys.stdout.fileno())
1693
890
os.dup2(null, sys.stderr.fileno())
1696
893
1697
894
1698
895
def main():
1699
1700
##################################################################
1701
# Parsing of options, both command line and config file
1702
1703
parser = argparse.ArgumentParser()
1704
parser.add_argument("-v", "--version", action="version",
1705
version = "%%(prog)s %s" % version,
1706
help="show version number and exit")
1707
parser.add_argument("-i", "--interface", metavar="IF",
1708
help="Bind to interface IF")
1709
parser.add_argument("-a", "--address",
1710
help="Address to listen for requests on")
1711
parser.add_argument("-p", "--port", type=int,
1712
help="Port number to receive requests on")
1713
parser.add_argument("--check", action="store_true",
1714
help="Run self-test")
1715
parser.add_argument("--debug", action="store_true",
1716
help="Debug mode; run in foreground and log"
1717
" to terminal")
1718
parser.add_argument("--debuglevel", metavar="LEVEL",
1719
help="Debug level for stdout output")
1720
parser.add_argument("--priority", help="GnuTLS"
1721
" priority string (see GnuTLS documentation)")
1722
parser.add_argument("--servicename",
1723
metavar="NAME", help="Zeroconf service name")
1724
parser.add_argument("--configdir",
1725
default="/etc/mandos", metavar="DIR",
1726
help="Directory to search for configuration"
1727
" files")
1728
parser.add_argument("--no-dbus", action="store_false",
1729
dest="use_dbus", help="Do not provide D-Bus"
1730
" system bus interface")
1731
parser.add_argument("--no-ipv6", action="store_false",
1732
dest="use_ipv6", help="Do not use IPv6")
1733
options = parser.parse_args()
896
parser = optparse.OptionParser(version = "%%prog %s" % version)
897
parser.add_option("-i", "--interface", type="string",
898
metavar="IF", help="Bind to interface IF")
899
parser.add_option("-a", "--address", type="string",
900
help="Address to listen for requests on")
901
parser.add_option("-p", "--port", type="int",
902
help="Port number to receive requests on")
903
parser.add_option("--check", action="store_true",
904
help="Run self-test")
905
parser.add_option("--debug", action="store_true",
906
help="Debug mode; run in foreground and log to"
907
" terminal")
908
parser.add_option("--priority", type="string", help="GnuTLS"
909
" priority string (see GnuTLS documentation)")
910
parser.add_option("--servicename", type="string", metavar="NAME",
911
help="Zeroconf service name")
912
parser.add_option("--configdir", type="string",
913
default="/etc/mandos", metavar="DIR",
914
help="Directory to search for configuration"
915
" files")
916
parser.add_option("--no-dbus", action="store_false",
917
dest="use_dbus",
918
help="Do not provide D-Bus system bus"
919
" interface")
920
options = parser.parse_args()[0]
1734
921
1735
922
if options.check:
1736
923
import doctest
1746
933
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1747
934
"servicename": "Mandos",
1748
935
"use_dbus": "True",
1749
"use_ipv6": "True",
1750
"debuglevel": "",
1751
936
}
1752
937
1753
938
# Parse config file for server-global settings
1754
server_config = configparser.SafeConfigParser(server_defaults)
939
server_config = ConfigParser.SafeConfigParser(server_defaults)
1755
940
del server_defaults
1756
server_config.read(os.path.join(options.configdir,
1757
"mandos.conf"))
941
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1758
942
# Convert the SafeConfigParser object to a dict
1759
943
server_settings = server_config.defaults()
1760
# Use the appropriate methods on the non-string config options
1761
for option in ("debug", "use_dbus", "use_ipv6"):
1762
server_settings[option] = server_config.getboolean("DEFAULT",
1763
option)
1764
if server_settings["port"]:
1765
server_settings["port"] = server_config.getint("DEFAULT",
1766
"port")
944
# Use getboolean on the boolean config options
945
server_settings["debug"] = (server_config.getboolean
946
("DEFAULT", "debug"))
947
server_settings["use_dbus"] = (server_config.getboolean
948
("DEFAULT", "use_dbus"))
1767
949
del server_config
1768
950
1769
951
# Override the settings from the config file with command line
1770
952
# options, if set.
1771
953
for option in ("interface", "address", "port", "debug",
1772
954
"priority", "servicename", "configdir",
1773
"use_dbus", "use_ipv6", "debuglevel"):
955
"use_dbus"):
1774
956
value = getattr(options, option)
1775
957
if value is not None:
1776
958
server_settings[option] = value
1777
959
del options
1778
# Force all strings to be unicode
1779
for option in server_settings.keys():
1780
if type(server_settings[option]) is str:
1781
server_settings[option] = unicode(server_settings[option])
1782
960
# Now we have our good server settings in "server_settings"
1783
961
1784
##################################################################
1785
1786
962
# For convenience
1787
963
debug = server_settings["debug"]
1788
debuglevel = server_settings["debuglevel"]
1789
964
use_dbus = server_settings["use_dbus"]
1790
use_ipv6 = server_settings["use_ipv6"]
1791
965
966
if not debug:
967
syslogger.setLevel(logging.WARNING)
968
console.setLevel(logging.WARNING)
969
1792
970
if server_settings["servicename"] != "Mandos":
1793
971
syslogger.setFormatter(logging.Formatter
1794
('Mandos (%s) [%%(process)d]:'
1795
' %%(levelname)s: %%(message)s'
972
('Mandos (%s): %%(levelname)s:'
973
' %%(message)s'
1796
974
% server_settings["servicename"]))
1797
975
1798
976
# Parse config file with clients
1800
978
"interval": "5m",
1801
979
"checker": "fping -q -- %%(host)s",
1802
980
"host": "",
1803
"approval_delay": "0s",
1804
"approval_duration": "1s",
1805
981
}
1806
client_config = configparser.SafeConfigParser(client_defaults)
982
client_config = ConfigParser.SafeConfigParser(client_defaults)
1807
983
client_config.read(os.path.join(server_settings["configdir"],
1808
984
"clients.conf"))
1809
985
1810
global mandos_dbus_service
1811
mandos_dbus_service = None
1812
1813
tcp_server = MandosServer((server_settings["address"],
1814
server_settings["port"]),
1815
ClientHandler,
1816
interface=(server_settings["interface"]
1817
or None),
1818
use_ipv6=use_ipv6,
1819
gnutls_priority=
1820
server_settings["priority"],
1821
use_dbus=use_dbus)
1822
if not debug:
1823
pidfilename = "/var/run/mandos.pid"
1824
try:
1825
pidfile = open(pidfilename, "w")
1826
except IOError:
1827
logger.error("Could not open file %r", pidfilename)
986
clients = Set()
987
tcp_server = IPv6_TCPServer((server_settings["address"],
988
server_settings["port"]),
989
TCP_handler,
990
settings=server_settings,
991
clients=clients)
992
pidfilename = "/var/run/mandos.pid"
993
try:
994
pidfile = open(pidfilename, "w")
995
except IOError, error:
996
logger.error("Could not open file %r", pidfilename)
1828
997
1829
998
try:
1830
999
uid = pwd.getpwnam("_mandos").pw_uid
1836
1005
except KeyError:
1837
1006
try:
1838
1007
uid = pwd.getpwnam("nobody").pw_uid
1839
gid = pwd.getpwnam("nobody").pw_gid
1008
gid = pwd.getpwnam("nogroup").pw_gid
1840
1009
except KeyError:
1841
1010
uid = 65534
1842
1011
gid = 65534
1843
1012
try:
1013
os.setuid(uid)
1844
1014
os.setgid(gid)
1845
os.setuid(uid)
1846
except OSError as error:
1015
except OSError, error:
1847
1016
if error[0] != errno.EPERM:
1848
1017
raise error
1849
1018
1850
if not debug and not debuglevel:
1851
syslogger.setLevel(logging.WARNING)
1852
console.setLevel(logging.WARNING)
1853
if debuglevel:
1854
level = getattr(logging, debuglevel.upper())
1855
syslogger.setLevel(level)
1856
console.setLevel(level)
1857
1019
global service
1020
service = AvahiService(name = server_settings["servicename"],
1021
servicetype = "_mandos._tcp", )
1022
if server_settings["interface"]:
1023
service.interface = (if_nametoindex
1024
(server_settings["interface"]))
1025
1026
global main_loop
1027
global bus
1028
global server
1029
# From the Avahi example code
1030
DBusGMainLoop(set_as_default=True )
1031
main_loop = gobject.MainLoop()
1032
bus = dbus.SystemBus()
1033
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1034
avahi.DBUS_PATH_SERVER),
1035
avahi.DBUS_INTERFACE_SERVER)
1036
# End of Avahi example code
1037
if use_dbus:
1038
bus_name = dbus.service.BusName(u"org.mandos-system.Mandos",
1039
bus)
1040
1041
clients.update(Set(Client(name = section,
1042
config
1043
= dict(client_config.items(section)),
1044
use_dbus = use_dbus)
1045
for section in client_config.sections()))
1046
if not clients:
1047
logger.warning(u"No clients defined")
1048
1858
1049
if debug:
1859
# Enable all possible GnuTLS debugging
1860
1861
# "Use a log level over 10 to enable all debugging options."
1862
# - GnuTLS manual
1863
gnutls.library.functions.gnutls_global_set_log_level(11)
1864
1865
@gnutls.library.types.gnutls_log_func
1866
def debug_gnutls(level, string):
1867
logger.debug("GnuTLS: %s", string[:-1])
1868
1869
(gnutls.library.functions
1870
.gnutls_global_set_log_function(debug_gnutls))
1871
1872
1050
# Redirect stdin so all checkers get /dev/null
1873
1051
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1874
1052
os.dup2(null, sys.stdin.fileno())
1877
1055
else:
1878
1056
# No console logging
1879
1057
logger.removeHandler(console)
1880
1881
# Need to fork before connecting to D-Bus
1882
if not debug:
1883
1058
# Close all input and output, do double fork, etc.
1884
1059
daemon()
1885
1060
1886
global main_loop
1887
# From the Avahi example code
1888
DBusGMainLoop(set_as_default=True )
1889
main_loop = gobject.MainLoop()
1890
bus = dbus.SystemBus()
1891
# End of Avahi example code
1892
if use_dbus:
1893
try:
1894
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1895
bus, do_not_queue=True)
1896
except dbus.exceptions.NameExistsException as e:
1897
logger.error(unicode(e) + ", disabling D-Bus")
1898
use_dbus = False
1899
server_settings["use_dbus"] = False
1900
tcp_server.use_dbus = False
1901
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1902
service = AvahiService(name = server_settings["servicename"],
1903
servicetype = "_mandos._tcp",
1904
protocol = protocol, bus = bus)
1905
if server_settings["interface"]:
1906
service.interface = (if_nametoindex
1907
(str(server_settings["interface"])))
1908
1909
global multiprocessing_manager
1910
multiprocessing_manager = multiprocessing.Manager()
1911
1912
client_class = Client
1913
if use_dbus:
1914
client_class = functools.partial(ClientDBus, bus = bus)
1915
def client_config_items(config, section):
1916
special_settings = {
1917
"approved_by_default":
1918
lambda: config.getboolean(section,
1919
"approved_by_default"),
1920
}
1921
for name, value in config.items(section):
1922
try:
1923
yield (name, special_settings[name]())
1924
except KeyError:
1925
yield (name, value)
1926
1927
tcp_server.clients.update(set(
1928
client_class(name = section,
1929
config= dict(client_config_items(
1930
client_config, section)))
1931
for section in client_config.sections()))
1932
if not tcp_server.clients:
1933
logger.warning("No clients defined")
1061
try:
1062
pid = os.getpid()
1063
pidfile.write(str(pid) + "\n")
1064
pidfile.close()
1065
del pidfile
1066
except IOError:
1067
logger.error(u"Could not write to file %r with PID %d",
1068
pidfilename, pid)
1069
except NameError:
1070
# "pidfile" was never created
1071
pass
1072
del pidfilename
1073
1074
def cleanup():
1075
"Cleanup function; run on exit"
1076
global group
1077
# From the Avahi example code
1078
if not group is None:
1079
group.Free()
1080
group = None
1081
# End of Avahi example code
1934
1082
1083
while clients:
1084
client = clients.pop()
1085
client.disable_hook = None
1086
client.disable()
1087
1088
atexit.register(cleanup)
1089
1935
1090
if not debug:
1936
try:
1937
with pidfile:
1938
pid = os.getpid()
1939
pidfile.write(str(pid) + "\n".encode("utf-8"))
1940
del pidfile
1941
except IOError:
1942
logger.error("Could not write to file %r with PID %d",
1943
pidfilename, pid)
1944
except NameError:
1945
# "pidfile" was never created
1946
pass
1947
del pidfilename
1948
1949
1091
signal.signal(signal.SIGINT, signal.SIG_IGN)
1950
1951
1092
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1952
1093
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1953
1094
1954
1095
if use_dbus:
1955
class MandosDBusService(dbus.service.Object):
1096
class MandosServer(dbus.service.Object):
1956
1097
"""A D-Bus proxy object"""
1957
1098
def __init__(self):
1958
dbus.service.Object.__init__(self, bus, "/")
1959
_interface = "se.bsnet.fukt.Mandos"
1960
1961
@dbus.service.signal(_interface, signature="o")
1962
def ClientAdded(self, objpath):
1963
"D-Bus signal"
1964
pass
1965
1966
@dbus.service.signal(_interface, signature="ss")
1967
def ClientNotFound(self, fingerprint, address):
1099
dbus.service.Object.__init__(self, bus,
1100
"/Mandos")
1101
_interface = u"org.mandos_system.Mandos"
1102
1103
@dbus.service.signal(_interface, signature="oa{sv}")
1104
def ClientAdded(self, objpath, properties):
1968
1105
"D-Bus signal"
1969
1106
pass
1970
1107
1975
1112
1976
1113
@dbus.service.method(_interface, out_signature="ao")
1977
1114
def GetAllClients(self):
1978
"D-Bus method"
1979
return dbus.Array(c.dbus_object_path
1980
for c in tcp_server.clients)
1115
return dbus.Array(c.dbus_object_path for c in clients)
1981
1116
1982
@dbus.service.method(_interface,
1983
out_signature="a{oa{sv}}")
1117
@dbus.service.method(_interface, out_signature="a{oa{sv}}")
1984
1118
def GetAllClientsWithProperties(self):
1985
"D-Bus method"
1986
1119
return dbus.Dictionary(
1987
((c.dbus_object_path, c.GetAll(""))
1988
for c in tcp_server.clients),
1120
((c.dbus_object_path, c.GetAllProperties())
1121
for c in clients),
1989
1122
signature="oa{sv}")
1990
1123
1991
1124
@dbus.service.method(_interface, in_signature="o")
1992
1125
def RemoveClient(self, object_path):
1993
"D-Bus method"
1994
for c in tcp_server.clients:
1126
for c in clients:
1995
1127
if c.dbus_object_path == object_path:
1996
tcp_server.clients.remove(c)
1997
c.remove_from_connection()
1128
clients.remove(c)
1998
1129
# Don't signal anything except ClientRemoved
1999
c.disable(quiet=True)
1130
c.use_dbus = False
1131
c.disable()
2000
1132
# Emit D-Bus signal
2001
1133
self.ClientRemoved(object_path, c.name)
2002
1134
return
2003
raise KeyError(object_path)
1135
raise KeyError
1136
1137
@dbus.service.method(_interface, in_signature="s")
1138
def RemoveClientByName(self, name):
1139
for c in clients:
1140
if c.name == name:
1141
clients.remove(c)
1142
# Don't signal anything except ClientRemoved
1143
c.use_dbus = False
1144
c.disable()
1145
# Emit D-Bus signal
1146
self.ClientRemoved(c.dbus_object_path, name)
1147
return
1148
raise KeyError
1149
1150
@dbus.service.method(_interface)
1151
def Quit(self):
1152
main_loop.quit()
2004
1153
2005
1154
del _interface
2006
1155
2007
mandos_dbus_service = MandosDBusService()
2008
2009
def cleanup():
2010
"Cleanup function; run on exit"
2011
service.cleanup()
2012
2013
while tcp_server.clients:
2014
client = tcp_server.clients.pop()
2015
if use_dbus:
2016
client.remove_from_connection()
2017
client.disable_hook = None
2018
# Don't signal anything except ClientRemoved
2019
client.disable(quiet=True)
2020
if use_dbus:
2021
# Emit D-Bus signal
2022
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2023
client.name)
2024
2025
atexit.register(cleanup)
2026
2027
for client in tcp_server.clients:
1156
mandos_server = MandosServer()
1157
1158
for client in clients:
2028
1159
if use_dbus:
2029
1160
# Emit D-Bus signal
2030
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1161
mandos_server.ClientAdded(client.dbus_object_path,
1162
client.GetAllProperties())
2031
1163
client.enable()
2032
1164
2033
1165
tcp_server.enable()
2035
1167
2036
1168
# Find out what port we got
2037
1169
service.port = tcp_server.socket.getsockname()[1]
2038
if use_ipv6:
2039
logger.info("Now listening on address %r, port %d,"
2040
" flowinfo %d, scope_id %d"
2041
% tcp_server.socket.getsockname())
2042
else: # IPv4
2043
logger.info("Now listening on address %r, port %d"
2044
% tcp_server.socket.getsockname())
1170
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
1171
u" scope_id %d" % tcp_server.socket.getsockname())
2045
1172
2046
1173
#service.interface = tcp_server.socket.getsockname()[3]
2047
1174
2048
1175
try:
2049
1176
# From the Avahi example code
1177
server.connect_to_signal("StateChanged", server_state_changed)
2050
1178
try:
2051
service.activate()
2052
except dbus.exceptions.DBusException as error:
2053
logger.critical("DBusException: %s", error)
2054
cleanup()
1179
server_state_changed(server.GetState())
1180
except dbus.exceptions.DBusException, error:
1181
logger.critical(u"DBusException: %s", error)
2055
1182
sys.exit(1)
2056
1183
# End of Avahi example code
2057
1184
2060
1187
(tcp_server.handle_request
2061
1188
(*args[2:], **kwargs) or True))
2062
1189
2063
logger.debug("Starting main loop")
1190
logger.debug(u"Starting main loop")
2064
1191
main_loop.run()
2065
except AvahiError as error:
2066
logger.critical("AvahiError: %s", error)
2067
cleanup()
1192
except AvahiError, error:
1193
logger.critical(u"AvahiError: %s", error)
2068
1194
sys.exit(1)
2069
1195
except KeyboardInterrupt:
2070
1196
if debug:
2071
print("", file=sys.stderr)
2072
logger.debug("Server received KeyboardInterrupt")
2073
logger.debug("Server exiting")
2074
# Must run before the D-Bus bus name gets deregistered
2075
cleanup()
1197
print
2076
1198
2077
1199
if __name__ == '__main__':
2078
1200
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0