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- Committer: Teddy Hogeborn
- Date: 2013-10-22 19:46:35 UTC
- Revision ID: teddy@recompile.se-20131022194635-ll6jyg1snrxwe94o
* TODO
- files added:
- debian/mandos-client.examples
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
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# Everything else is
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# Copyright © 2008-2011 Teddy Hogeborn
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# Copyright © 2008-2011 Björn Påhlsson
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# Copyright © 2008-2013 Teddy Hogeborn
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# Copyright © 2008-2013 Björn Påhlsson
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16
#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@fukt.bsnet.se>.
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# Contact the authors at <mandos@recompile.se>.
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32
#
33
33
34
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from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
38
37
39
import SocketServer as socketserver
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40
import socket
39
41
import argparse
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65
import cPickle as pickle
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66
import multiprocessing
65
67
import types
68
import binascii
69
import tempfile
70
import itertools
71
import collections
66
72
67
73
import dbus
68
74
import dbus.service
82
88
except ImportError:
83
89
SO_BINDTODEVICE = None
84
90
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
91
version = "1.6.1"
92
stored_state_file = "clients.pickle"
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94
logger = logging.getLogger()
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95
syslogger = (logging.handlers.SysLogHandler
91
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
97
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
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98
console = logging.StreamHandler()
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console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
98
99
try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
103
except (OSError, AttributeError):
104
def if_nametoindex(interface):
105
"Get an interface index the hard way, i.e. using fcntl()"
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
with contextlib.closing(socket.socket()) as s:
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
113
return interface_index
114
115
116
def initlogger(debug, level=logging.WARNING):
117
"""init logger and add loglevel"""
118
119
syslogger.setFormatter(logging.Formatter
120
('Mandos [%(process)d]: %(levelname)s:'
121
' %(message)s'))
122
logger.addHandler(syslogger)
123
124
if debug:
125
console = logging.StreamHandler()
126
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
127
' [%(process)d]:'
128
' %(levelname)s:'
129
' %(message)s'))
130
logger.addHandler(console)
131
logger.setLevel(level)
132
133
134
class PGPError(Exception):
135
"""Exception if encryption/decryption fails"""
136
pass
137
138
139
class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
141
def __init__(self):
142
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
143
self.gnupgargs = ['--batch',
144
'--home', self.tempdir,
145
'--force-mdc',
146
'--quiet',
147
'--no-use-agent']
148
149
def __enter__(self):
150
return self
151
152
def __exit__(self, exc_type, exc_value, traceback):
153
self._cleanup()
154
return False
155
156
def __del__(self):
157
self._cleanup()
158
159
def _cleanup(self):
160
if self.tempdir is not None:
161
# Delete contents of tempdir
162
for root, dirs, files in os.walk(self.tempdir,
163
topdown = False):
164
for filename in files:
165
os.remove(os.path.join(root, filename))
166
for dirname in dirs:
167
os.rmdir(os.path.join(root, dirname))
168
# Remove tempdir
169
os.rmdir(self.tempdir)
170
self.tempdir = None
171
172
def password_encode(self, password):
173
# Passphrase can not be empty and can not contain newlines or
174
# NUL bytes. So we prefix it and hex encode it.
175
encoded = b"mandos" + binascii.hexlify(password)
176
if len(encoded) > 2048:
177
# GnuPG can't handle long passwords, so encode differently
178
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
179
.replace(b"\n", b"\\n")
180
.replace(b"\0", b"\\x00"))
181
return encoded
182
183
def encrypt(self, data, password):
184
passphrase = self.password_encode(password)
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
186
) as passfile:
187
passfile.write(passphrase)
188
passfile.flush()
189
proc = subprocess.Popen(['gpg', '--symmetric',
190
'--passphrase-file',
191
passfile.name]
192
+ self.gnupgargs,
193
stdin = subprocess.PIPE,
194
stdout = subprocess.PIPE,
195
stderr = subprocess.PIPE)
196
ciphertext, err = proc.communicate(input = data)
197
if proc.returncode != 0:
198
raise PGPError(err)
199
return ciphertext
200
201
def decrypt(self, data, password):
202
passphrase = self.password_encode(password)
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
204
) as passfile:
205
passfile.write(passphrase)
206
passfile.flush()
207
proc = subprocess.Popen(['gpg', '--decrypt',
208
'--passphrase-file',
209
passfile.name]
210
+ self.gnupgargs,
211
stdin = subprocess.PIPE,
212
stdout = subprocess.PIPE,
213
stderr = subprocess.PIPE)
214
decrypted_plaintext, err = proc.communicate(input
215
= data)
216
if proc.returncode != 0:
217
raise PGPError(err)
218
return decrypted_plaintext
219
103
220
104
221
class AvahiError(Exception):
105
222
def __init__(self, value, *args, **kwargs):
123
240
Used to optionally bind to the specified interface.
124
241
name: string; Example: 'Mandos'
125
242
type: string; Example: '_mandos._tcp'.
126
See <http://www.dns-sd.org/ServiceTypes.html>
243
See <https://www.iana.org/assignments/service-names-port-numbers>
127
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port: integer; what port to announce
128
245
TXT: list of strings; TXT record for the service
129
246
domain: string; Domain to publish on, default to .local if empty.
135
252
server: D-Bus Server
136
253
bus: dbus.SystemBus()
137
254
"""
255
138
256
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
257
servicetype = None, port = None, TXT = None,
140
258
domain = "", host = "", max_renames = 32768,
153
271
self.server = None
154
272
self.bus = bus
155
273
self.entry_group_state_changed_match = None
274
156
275
def rename(self):
157
276
"""Derived from the Avahi example code"""
158
277
if self.rename_count >= self.max_renames:
160
279
" after %i retries, exiting.",
161
280
self.rename_count)
162
281
raise AvahiServiceError("Too many renames")
163
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
282
self.name = unicode(self.server
283
.GetAlternativeServiceName(self.name))
164
284
logger.info("Changing Zeroconf service name to %r ...",
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285
self.name)
166
syslogger.setFormatter(logging.Formatter
167
('Mandos (%s) [%%(process)d]:'
168
' %%(levelname)s: %%(message)s'
169
% self.name))
170
286
self.remove()
171
287
try:
172
288
self.add()
173
289
except dbus.exceptions.DBusException as error:
174
logger.critical("DBusException: %s", error)
290
logger.critical("D-Bus Exception", exc_info=error)
175
291
self.cleanup()
176
292
os._exit(1)
177
293
self.rename_count += 1
294
178
295
def remove(self):
179
296
"""Derived from the Avahi example code"""
180
297
if self.entry_group_state_changed_match is not None:
182
299
self.entry_group_state_changed_match = None
183
300
if self.group is not None:
184
301
self.group.Reset()
302
185
303
def add(self):
186
304
"""Derived from the Avahi example code"""
187
305
self.remove()
192
310
avahi.DBUS_INTERFACE_ENTRY_GROUP)
193
311
self.entry_group_state_changed_match = (
194
312
self.group.connect_to_signal(
195
'StateChanged', self .entry_group_state_changed))
313
'StateChanged', self.entry_group_state_changed))
196
314
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
197
315
self.name, self.type)
198
316
self.group.AddService(
204
322
dbus.UInt16(self.port),
205
323
avahi.string_array_to_txt_array(self.TXT))
206
324
self.group.Commit()
325
207
326
def entry_group_state_changed(self, state, error):
208
327
"""Derived from the Avahi example code"""
209
328
logger.debug("Avahi entry group state change: %i", state)
216
335
elif state == avahi.ENTRY_GROUP_FAILURE:
217
336
logger.critical("Avahi: Error in group state changed %s",
218
337
unicode(error))
219
raise AvahiGroupError("State changed: %s"
220
% unicode(error))
338
raise AvahiGroupError("State changed: {0!s}"
339
.format(error))
340
221
341
def cleanup(self):
222
342
"""Derived from the Avahi example code"""
223
343
if self.group is not None:
224
344
try:
225
345
self.group.Free()
226
346
except (dbus.exceptions.UnknownMethodException,
227
dbus.exceptions.DBusException) as e:
347
dbus.exceptions.DBusException):
228
348
pass
229
349
self.group = None
230
350
self.remove()
351
231
352
def server_state_changed(self, state, error=None):
232
353
"""Derived from the Avahi example code"""
233
354
logger.debug("Avahi server state change: %i", state)
252
373
logger.debug("Unknown state: %r", state)
253
374
else:
254
375
logger.debug("Unknown state: %r: %r", state, error)
376
255
377
def activate(self):
256
378
"""Derived from the Avahi example code"""
257
379
if self.server is None:
265
387
self.server_state_changed(self.server.GetState())
266
388
267
389
268
def _timedelta_to_milliseconds(td):
390
class AvahiServiceToSyslog(AvahiService):
391
def rename(self):
392
"""Add the new name to the syslog messages"""
393
ret = AvahiService.rename(self)
394
syslogger.setFormatter(logging.Formatter
395
('Mandos ({0}) [%(process)d]:'
396
' %(levelname)s: %(message)s'
397
.format(self.name)))
398
return ret
399
400
401
def timedelta_to_milliseconds(td):
269
402
"Convert a datetime.timedelta() to milliseconds"
270
403
return ((td.days * 24 * 60 * 60 * 1000)
271
404
+ (td.seconds * 1000)
272
405
+ (td.microseconds // 1000))
273
406
407
274
408
class Client(object):
275
409
"""A representation of a client host served by this server.
276
410
277
411
Attributes:
278
_approved: bool(); 'None' if not yet approved/disapproved
412
approved: bool(); 'None' if not yet approved/disapproved
279
413
approval_delay: datetime.timedelta(); Time to wait for approval
280
414
approval_duration: datetime.timedelta(); Duration of one approval
281
415
checker: subprocess.Popen(); a running checker process used
288
422
instance %(name)s can be used in the command.
289
423
checker_initiator_tag: a gobject event source tag, or None
290
424
created: datetime.datetime(); (UTC) object creation
425
client_structure: Object describing what attributes a client has
426
and is used for storing the client at exit
291
427
current_checker_command: string; current running checker_command
292
disable_hook: If set, called by disable() as disable_hook(self)
293
428
disable_initiator_tag: a gobject event source tag, or None
294
429
enabled: bool()
295
430
fingerprint: string (40 or 32 hexadecimal digits); used to
298
433
interval: datetime.timedelta(); How often to start a new checker
299
434
last_approval_request: datetime.datetime(); (UTC) or None
300
435
last_checked_ok: datetime.datetime(); (UTC) or None
301
last_enabled: datetime.datetime(); (UTC)
436
last_checker_status: integer between 0 and 255 reflecting exit
437
status of last checker. -1 reflects crashed
438
checker, -2 means no checker completed yet.
439
last_enabled: datetime.datetime(); (UTC) or None
302
440
name: string; from the config file, used in log messages and
303
441
D-Bus identifiers
304
442
secret: bytestring; sent verbatim (over TLS) to client
305
443
timeout: datetime.timedelta(); How long from last_checked_ok
306
444
until this client is disabled
307
extended_timeout: extra long timeout when password has been sent
445
extended_timeout: extra long timeout when secret has been sent
308
446
runtime_expansions: Allowed attributes for runtime expansion.
309
447
expires: datetime.datetime(); time (UTC) when a client will be
310
448
disabled, or None
449
server_settings: The server_settings dict from main()
311
450
"""
312
451
313
452
runtime_expansions = ("approval_delay", "approval_duration",
314
"created", "enabled", "fingerprint",
315
"host", "interval", "last_checked_ok",
453
"created", "enabled", "expires",
454
"fingerprint", "host", "interval",
455
"last_approval_request", "last_checked_ok",
316
456
"last_enabled", "name", "timeout")
457
client_defaults = { "timeout": "PT5M",
458
"extended_timeout": "PT15M",
459
"interval": "PT2M",
460
"checker": "fping -q -- %%(host)s",
461
"host": "",
462
"approval_delay": "PT0S",
463
"approval_duration": "PT1S",
464
"approved_by_default": "True",
465
"enabled": "True",
466
}
317
467
318
468
def timeout_milliseconds(self):
319
469
"Return the 'timeout' attribute in milliseconds"
320
return _timedelta_to_milliseconds(self.timeout)
470
return timedelta_to_milliseconds(self.timeout)
321
471
322
472
def extended_timeout_milliseconds(self):
323
473
"Return the 'extended_timeout' attribute in milliseconds"
324
return _timedelta_to_milliseconds(self.extended_timeout)
474
return timedelta_to_milliseconds(self.extended_timeout)
325
475
326
476
def interval_milliseconds(self):
327
477
"Return the 'interval' attribute in milliseconds"
328
return _timedelta_to_milliseconds(self.interval)
478
return timedelta_to_milliseconds(self.interval)
329
479
330
480
def approval_delay_milliseconds(self):
331
return _timedelta_to_milliseconds(self.approval_delay)
332
333
def __init__(self, name = None, disable_hook=None, config=None):
334
"""Note: the 'checker' key in 'config' sets the
335
'checker_command' attribute and *not* the 'checker'
336
attribute."""
481
return timedelta_to_milliseconds(self.approval_delay)
482
483
@staticmethod
484
def config_parser(config):
485
"""Construct a new dict of client settings of this form:
486
{ client_name: {setting_name: value, ...}, ...}
487
with exceptions for any special settings as defined above.
488
NOTE: Must be a pure function. Must return the same result
489
value given the same arguments.
490
"""
491
settings = {}
492
for client_name in config.sections():
493
section = dict(config.items(client_name))
494
client = settings[client_name] = {}
495
496
client["host"] = section["host"]
497
# Reformat values from string types to Python types
498
client["approved_by_default"] = config.getboolean(
499
client_name, "approved_by_default")
500
client["enabled"] = config.getboolean(client_name,
501
"enabled")
502
503
client["fingerprint"] = (section["fingerprint"].upper()
504
.replace(" ", ""))
505
if "secret" in section:
506
client["secret"] = section["secret"].decode("base64")
507
elif "secfile" in section:
508
with open(os.path.expanduser(os.path.expandvars
509
(section["secfile"])),
510
"rb") as secfile:
511
client["secret"] = secfile.read()
512
else:
513
raise TypeError("No secret or secfile for section {0}"
514
.format(section))
515
client["timeout"] = string_to_delta(section["timeout"])
516
client["extended_timeout"] = string_to_delta(
517
section["extended_timeout"])
518
client["interval"] = string_to_delta(section["interval"])
519
client["approval_delay"] = string_to_delta(
520
section["approval_delay"])
521
client["approval_duration"] = string_to_delta(
522
section["approval_duration"])
523
client["checker_command"] = section["checker"]
524
client["last_approval_request"] = None
525
client["last_checked_ok"] = None
526
client["last_checker_status"] = -2
527
528
return settings
529
530
def __init__(self, settings, name = None, server_settings=None):
337
531
self.name = name
338
if config is None:
339
config = {}
532
if server_settings is None:
533
server_settings = {}
534
self.server_settings = server_settings
535
# adding all client settings
536
for setting, value in settings.iteritems():
537
setattr(self, setting, value)
538
539
if self.enabled:
540
if not hasattr(self, "last_enabled"):
541
self.last_enabled = datetime.datetime.utcnow()
542
if not hasattr(self, "expires"):
543
self.expires = (datetime.datetime.utcnow()
544
+ self.timeout)
545
else:
546
self.last_enabled = None
547
self.expires = None
548
340
549
logger.debug("Creating client %r", self.name)
341
550
# Uppercase and remove spaces from fingerprint for later
342
551
# comparison purposes with return value from the fingerprint()
343
552
# function
344
self.fingerprint = (config["fingerprint"].upper()
345
.replace(" ", ""))
346
553
logger.debug(" Fingerprint: %s", self.fingerprint)
347
if "secret" in config:
348
self.secret = config["secret"].decode("base64")
349
elif "secfile" in config:
350
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
352
"rb") as secfile:
353
self.secret = secfile.read()
354
else:
355
raise TypeError("No secret or secfile for client %s"
356
% self.name)
357
self.host = config.get("host", "")
358
self.created = datetime.datetime.utcnow()
359
self.enabled = False
360
self.last_approval_request = None
361
self.last_enabled = None
362
self.last_checked_ok = None
363
self.timeout = string_to_delta(config["timeout"])
364
self.extended_timeout = string_to_delta(config["extended_timeout"])
365
self.interval = string_to_delta(config["interval"])
366
self.disable_hook = disable_hook
554
self.created = settings.get("created",
555
datetime.datetime.utcnow())
556
557
# attributes specific for this server instance
367
558
self.checker = None
368
559
self.checker_initiator_tag = None
369
560
self.disable_initiator_tag = None
370
self.expires = None
371
561
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
373
562
self.current_checker_command = None
374
self.last_connect = None
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
563
self.approved = None
378
564
self.approvals_pending = 0
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
565
self.changedstate = (multiprocessing_manager
566
.Condition(multiprocessing_manager
567
.Lock()))
568
self.client_structure = [attr for attr in
569
self.__dict__.iterkeys()
570
if not attr.startswith("_")]
571
self.client_structure.append("client_structure")
572
573
for name, t in inspect.getmembers(type(self),
574
lambda obj:
575
isinstance(obj,
576
property)):
577
if not name.startswith("_"):
578
self.client_structure.append(name)
384
579
580
# Send notice to process children that client state has changed
385
581
def send_changedstate(self):
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
582
with self.changedstate:
583
self.changedstate.notify_all()
584
390
585
def enable(self):
391
586
"""Start this client's checker and timeout hooks"""
392
587
if getattr(self, "enabled", False):
393
588
# Already enabled
394
589
return
590
self.expires = datetime.datetime.utcnow() + self.timeout
591
self.enabled = True
592
self.last_enabled = datetime.datetime.utcnow()
593
self.init_checker()
395
594
self.send_changedstate()
595
596
def disable(self, quiet=True):
597
"""Disable this client."""
598
if not getattr(self, "enabled", False):
599
return False
600
if not quiet:
601
logger.info("Disabling client %s", self.name)
602
if getattr(self, "disable_initiator_tag", None) is not None:
603
gobject.source_remove(self.disable_initiator_tag)
604
self.disable_initiator_tag = None
605
self.expires = None
606
if getattr(self, "checker_initiator_tag", None) is not None:
607
gobject.source_remove(self.checker_initiator_tag)
608
self.checker_initiator_tag = None
609
self.stop_checker()
610
self.enabled = False
611
if not quiet:
612
self.send_changedstate()
613
# Do not run this again if called by a gobject.timeout_add
614
return False
615
616
def __del__(self):
617
self.disable()
618
619
def init_checker(self):
396
620
# Schedule a new checker to be started an 'interval' from now,
397
621
# and every interval from then on.
622
if self.checker_initiator_tag is not None:
623
gobject.source_remove(self.checker_initiator_tag)
398
624
self.checker_initiator_tag = (gobject.timeout_add
399
625
(self.interval_milliseconds(),
400
626
self.start_checker))
401
627
# Schedule a disable() when 'timeout' has passed
402
self.expires = datetime.datetime.utcnow() + self.timeout
628
if self.disable_initiator_tag is not None:
629
gobject.source_remove(self.disable_initiator_tag)
403
630
self.disable_initiator_tag = (gobject.timeout_add
404
631
(self.timeout_milliseconds(),
405
632
self.disable))
406
self.enabled = True
407
self.last_enabled = datetime.datetime.utcnow()
408
633
# Also start a new checker *right now*.
409
634
self.start_checker()
410
635
411
def disable(self, quiet=True):
412
"""Disable this client."""
413
if not getattr(self, "enabled", False):
414
return False
415
if not quiet:
416
self.send_changedstate()
417
if not quiet:
418
logger.info("Disabling client %s", self.name)
419
if getattr(self, "disable_initiator_tag", False):
420
gobject.source_remove(self.disable_initiator_tag)
421
self.disable_initiator_tag = None
422
self.expires = None
423
if getattr(self, "checker_initiator_tag", False):
424
gobject.source_remove(self.checker_initiator_tag)
425
self.checker_initiator_tag = None
426
self.stop_checker()
427
if self.disable_hook:
428
self.disable_hook(self)
429
self.enabled = False
430
# Do not run this again if called by a gobject.timeout_add
431
return False
432
433
def __del__(self):
434
self.disable_hook = None
435
self.disable()
436
437
636
def checker_callback(self, pid, condition, command):
438
637
"""The checker has completed, so take appropriate actions."""
439
638
self.checker_callback_tag = None
440
639
self.checker = None
441
640
if os.WIFEXITED(condition):
442
exitstatus = os.WEXITSTATUS(condition)
443
if exitstatus == 0:
641
self.last_checker_status = os.WEXITSTATUS(condition)
642
if self.last_checker_status == 0:
444
643
logger.info("Checker for %(name)s succeeded",
445
644
vars(self))
446
645
self.checked_ok()
448
647
logger.info("Checker for %(name)s failed",
449
648
vars(self))
450
649
else:
650
self.last_checker_status = -1
451
651
logger.warning("Checker for %(name)s crashed?",
452
652
vars(self))
453
653
454
def checked_ok(self, timeout=None):
455
"""Bump up the timeout for this client.
456
457
This should only be called when the client has been seen,
458
alive and well.
459
"""
654
def checked_ok(self):
655
"""Assert that the client has been seen, alive and well."""
656
self.last_checked_ok = datetime.datetime.utcnow()
657
self.last_checker_status = 0
658
self.bump_timeout()
659
660
def bump_timeout(self, timeout=None):
661
"""Bump up the timeout for this client."""
460
662
if timeout is None:
461
663
timeout = self.timeout
462
self.last_checked_ok = datetime.datetime.utcnow()
463
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
465
self.disable_initiator_tag = (gobject.timeout_add
466
(_timedelta_to_milliseconds(timeout),
467
self.disable))
664
if self.disable_initiator_tag is not None:
665
gobject.source_remove(self.disable_initiator_tag)
666
self.disable_initiator_tag = None
667
if getattr(self, "enabled", False):
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
671
self.expires = datetime.datetime.utcnow() + timeout
468
672
469
673
def need_approval(self):
470
674
self.last_approval_request = datetime.datetime.utcnow()
475
679
If a checker already exists, leave it running and do
476
680
nothing."""
477
681
# The reason for not killing a running checker is that if we
478
# did that, then if a checker (for some reason) started
479
# running slowly and taking more than 'interval' time, the
480
# client would inevitably timeout, since no checker would get
481
# a chance to run to completion. If we instead leave running
682
# did that, and if a checker (for some reason) started running
683
# slowly and taking more than 'interval' time, then the client
684
# would inevitably timeout, since no checker would get a
685
# chance to run to completion. If we instead leave running
482
686
# checkers alone, the checker would have to take more time
483
687
# than 'timeout' for the client to be disabled, which is as it
484
688
# should be.
498
702
self.current_checker_command)
499
703
# Start a new checker if needed
500
704
if self.checker is None:
705
# Escape attributes for the shell
706
escaped_attrs = dict(
707
(attr, re.escape(unicode(getattr(self, attr))))
708
for attr in
709
self.runtime_expansions)
501
710
try:
502
# In case checker_command has exactly one % operator
503
command = self.checker_command % self.host
504
except TypeError:
505
# Escape attributes for the shell
506
escaped_attrs = dict(
507
(attr,
508
re.escape(unicode(str(getattr(self, attr, "")),
509
errors=
510
'replace')))
511
for attr in
512
self.runtime_expansions)
513
514
try:
515
command = self.checker_command % escaped_attrs
516
except TypeError as error:
517
logger.error('Could not format string "%s":'
518
' %s', self.checker_command, error)
519
return True # Try again later
711
command = self.checker_command % escaped_attrs
712
except TypeError as error:
713
logger.error('Could not format string "%s"',
714
self.checker_command, exc_info=error)
715
return True # Try again later
520
716
self.current_checker_command = command
521
717
try:
522
718
logger.info("Starting checker %r for %s",
525
721
# in normal mode, that is already done by daemon(),
526
722
# and in debug mode we don't want to. (Stdin is
527
723
# always replaced by /dev/null.)
724
# The exception is when not debugging but nevertheless
725
# running in the foreground; use the previously
726
# created wnull.
727
popen_args = {}
728
if (not self.server_settings["debug"]
729
and self.server_settings["foreground"]):
730
popen_args.update({"stdout": wnull,
731
"stderr": wnull })
528
732
self.checker = subprocess.Popen(command,
529
733
close_fds=True,
530
shell=True, cwd="/")
531
self.checker_callback_tag = (gobject.child_watch_add
532
(self.checker.pid,
533
self.checker_callback,
534
data=command))
535
# The checker may have completed before the gobject
536
# watch was added. Check for this.
734
shell=True, cwd="/",
735
**popen_args)
736
except OSError as error:
737
logger.error("Failed to start subprocess",
738
exc_info=error)
739
return True
740
self.checker_callback_tag = (gobject.child_watch_add
741
(self.checker.pid,
742
self.checker_callback,
743
data=command))
744
# The checker may have completed before the gobject
745
# watch was added. Check for this.
746
try:
537
747
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
538
if pid:
539
gobject.source_remove(self.checker_callback_tag)
540
self.checker_callback(pid, status, command)
541
748
except OSError as error:
542
logger.error("Failed to start subprocess: %s",
543
error)
749
if error.errno == errno.ECHILD:
750
# This should never happen
751
logger.error("Child process vanished",
752
exc_info=error)
753
return True
754
raise
755
if pid:
756
gobject.source_remove(self.checker_callback_tag)
757
self.checker_callback(pid, status, command)
544
758
# Re-run this periodically if run by gobject.timeout_add
545
759
return True
546
760
553
767
return
554
768
logger.debug("Stopping checker for %(name)s", vars(self))
555
769
try:
556
os.kill(self.checker.pid, signal.SIGTERM)
770
self.checker.terminate()
557
771
#time.sleep(0.5)
558
772
#if self.checker.poll() is None:
559
# os.kill(self.checker.pid, signal.SIGKILL)
773
# self.checker.kill()
560
774
except OSError as error:
561
775
if error.errno != errno.ESRCH: # No such process
562
776
raise
579
793
# "Set" method, so we fail early here:
580
794
if byte_arrays and signature != "ay":
581
795
raise ValueError("Byte arrays not supported for non-'ay'"
582
" signature %r" % signature)
796
" signature {0!r}".format(signature))
583
797
def decorator(func):
584
798
func._dbus_is_property = True
585
799
func._dbus_interface = dbus_interface
593
807
return decorator
594
808
595
809
810
def dbus_interface_annotations(dbus_interface):
811
"""Decorator for marking functions returning interface annotations
812
813
Usage:
814
815
@dbus_interface_annotations("org.example.Interface")
816
def _foo(self): # Function name does not matter
817
return {"org.freedesktop.DBus.Deprecated": "true",
818
"org.freedesktop.DBus.Property.EmitsChangedSignal":
819
"false"}
820
"""
821
def decorator(func):
822
func._dbus_is_interface = True
823
func._dbus_interface = dbus_interface
824
func._dbus_name = dbus_interface
825
return func
826
return decorator
827
828
829
def dbus_annotations(annotations):
830
"""Decorator to annotate D-Bus methods, signals or properties
831
Usage:
832
833
@dbus_service_property("org.example.Interface", signature="b",
834
access="r")
835
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
836
"org.freedesktop.DBus.Property."
837
"EmitsChangedSignal": "false"})
838
def Property_dbus_property(self):
839
return dbus.Boolean(False)
840
"""
841
def decorator(func):
842
func._dbus_annotations = annotations
843
return func
844
return decorator
845
846
596
847
class DBusPropertyException(dbus.exceptions.DBusException):
597
848
"""A base class for D-Bus property-related exceptions
598
849
"""
621
872
"""
622
873
623
874
@staticmethod
624
def _is_dbus_property(obj):
625
return getattr(obj, "_dbus_is_property", False)
875
def _is_dbus_thing(thing):
876
"""Returns a function testing if an attribute is a D-Bus thing
877
878
If called like _is_dbus_thing("method") it returns a function
879
suitable for use as predicate to inspect.getmembers().
880
"""
881
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
882
False)
626
883
627
def _get_all_dbus_properties(self):
884
def _get_all_dbus_things(self, thing):
628
885
"""Returns a generator of (name, attribute) pairs
629
886
"""
630
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
887
return ((getattr(athing.__get__(self), "_dbus_name",
888
name),
889
athing.__get__(self))
631
890
for cls in self.__class__.__mro__
632
for name, prop in inspect.getmembers(cls, self._is_dbus_property))
891
for name, athing in
892
inspect.getmembers(cls,
893
self._is_dbus_thing(thing)))
633
894
634
895
def _get_dbus_property(self, interface_name, property_name):
635
896
"""Returns a bound method if one exists which is a D-Bus
636
897
property with the specified name and interface.
637
898
"""
638
899
for cls in self.__class__.__mro__:
639
for name, value in inspect.getmembers(cls, self._is_dbus_property):
640
if value._dbus_name == property_name and value._dbus_interface == interface_name:
900
for name, value in (inspect.getmembers
901
(cls,
902
self._is_dbus_thing("property"))):
903
if (value._dbus_name == property_name
904
and value._dbus_interface == interface_name):
641
905
return value.__get__(self)
642
906
643
907
# No such property
644
908
raise DBusPropertyNotFound(self.dbus_object_path + ":"
645
909
+ interface_name + "."
646
910
+ property_name)
647
648
911
649
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
650
913
out_signature="v")
671
934
# signatures other than "ay".
672
935
if prop._dbus_signature != "ay":
673
936
raise ValueError
674
value = dbus.ByteArray(''.join(unichr(byte)
675
for byte in value))
937
value = dbus.ByteArray(b''.join(chr(byte)
938
for byte in value))
676
939
prop(value)
677
940
678
941
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
683
946
684
947
Note: Will not include properties with access="write".
685
948
"""
686
all = {}
687
for name, prop in self._get_all_dbus_properties():
949
properties = {}
950
for name, prop in self._get_all_dbus_things("property"):
688
951
if (interface_name
689
952
and interface_name != prop._dbus_interface):
690
953
# Interface non-empty but did not match
694
957
continue
695
958
value = prop()
696
959
if not hasattr(value, "variant_level"):
697
all[name] = value
960
properties[name] = value
698
961
continue
699
all[name] = type(value)(value, variant_level=
700
value.variant_level+1)
701
return dbus.Dictionary(all, signature="sv")
962
properties[name] = type(value)(value, variant_level=
963
value.variant_level+1)
964
return dbus.Dictionary(properties, signature="sv")
702
965
703
966
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
704
967
out_signature="s",
705
968
path_keyword='object_path',
706
969
connection_keyword='connection')
707
970
def Introspect(self, object_path, connection):
708
"""Standard D-Bus method, overloaded to insert property tags.
971
"""Overloading of standard D-Bus method.
972
973
Inserts property tags and interface annotation tags.
709
974
"""
710
975
xmlstring = dbus.service.Object.Introspect(self, object_path,
711
976
connection)
718
983
e.setAttribute("access", prop._dbus_access)
719
984
return e
720
985
for if_tag in document.getElementsByTagName("interface"):
986
# Add property tags
721
987
for tag in (make_tag(document, name, prop)
722
988
for name, prop
723
in self._get_all_dbus_properties()
989
in self._get_all_dbus_things("property")
724
990
if prop._dbus_interface
725
991
== if_tag.getAttribute("name")):
726
992
if_tag.appendChild(tag)
993
# Add annotation tags
994
for typ in ("method", "signal", "property"):
995
for tag in if_tag.getElementsByTagName(typ):
996
annots = dict()
997
for name, prop in (self.
998
_get_all_dbus_things(typ)):
999
if (name == tag.getAttribute("name")
1000
and prop._dbus_interface
1001
== if_tag.getAttribute("name")):
1002
annots.update(getattr
1003
(prop,
1004
"_dbus_annotations",
1005
{}))
1006
for name, value in annots.iteritems():
1007
ann_tag = document.createElement(
1008
"annotation")
1009
ann_tag.setAttribute("name", name)
1010
ann_tag.setAttribute("value", value)
1011
tag.appendChild(ann_tag)
1012
# Add interface annotation tags
1013
for annotation, value in dict(
1014
itertools.chain.from_iterable(
1015
annotations().iteritems()
1016
for name, annotations in
1017
self._get_all_dbus_things("interface")
1018
if name == if_tag.getAttribute("name")
1019
)).iteritems():
1020
ann_tag = document.createElement("annotation")
1021
ann_tag.setAttribute("name", annotation)
1022
ann_tag.setAttribute("value", value)
1023
if_tag.appendChild(ann_tag)
727
1024
# Add the names to the return values for the
728
1025
# "org.freedesktop.DBus.Properties" methods
729
1026
if (if_tag.getAttribute("name")
744
1041
except (AttributeError, xml.dom.DOMException,
745
1042
xml.parsers.expat.ExpatError) as error:
746
1043
logger.error("Failed to override Introspection method",
747
error)
1044
exc_info=error)
748
1045
return xmlstring
749
1046
750
1047
751
def datetime_to_dbus (dt, variant_level=0):
1048
def datetime_to_dbus(dt, variant_level=0):
752
1049
"""Convert a UTC datetime.datetime() to a D-Bus type."""
753
1050
if dt is None:
754
1051
return dbus.String("", variant_level = variant_level)
755
1052
return dbus.String(dt.isoformat(),
756
1053
variant_level=variant_level)
757
1054
758
class transitional_dbus_metaclass(DBusObjectWithProperties.__metaclass__):
759
def __new__(mcs, name, bases, attr):
760
for attrname, old_dbusobj in inspect.getmembers(bases[0]):
761
new_interface = getattr(old_dbusobj, "_dbus_interface", "").replace("se.bsnet.fukt.", "se.recompile.")
762
if (getattr(old_dbusobj, "_dbus_is_signal", False)
763
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
764
unwrappedfunc = dict(zip(old_dbusobj.func_code.co_freevars,
765
old_dbusobj.__closure__))["func"].cell_contents
766
newfunc = types.FunctionType(unwrappedfunc.func_code,
767
unwrappedfunc.func_globals,
768
unwrappedfunc.func_name,
769
unwrappedfunc.func_defaults,
770
unwrappedfunc.func_closure)
771
new_dbusfunc = dbus.service.signal(
772
new_interface, old_dbusobj._dbus_signature)(newfunc)
773
attr["_transitional_" + attrname] = new_dbusfunc
774
775
def fixscope(func1, func2):
776
def newcall(*args, **kwargs):
777
func1(*args, **kwargs)
778
func2(*args, **kwargs)
779
return newcall
780
781
attr[attrname] = fixscope(old_dbusobj, new_dbusfunc)
782
783
elif (getattr(old_dbusobj, "_dbus_is_method", False)
784
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
785
new_dbusfunc = (dbus.service.method
786
(new_interface,
787
old_dbusobj._dbus_in_signature,
788
old_dbusobj._dbus_out_signature)
789
(types.FunctionType
790
(old_dbusobj.func_code,
791
old_dbusobj.func_globals,
792
old_dbusobj.func_name,
793
old_dbusobj.func_defaults,
794
old_dbusobj.func_closure)))
795
796
attr[attrname] = new_dbusfunc
797
elif (getattr(old_dbusobj, "_dbus_is_property", False)
798
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
799
new_dbusfunc = (dbus_service_property
800
(new_interface,
801
old_dbusobj._dbus_signature,
802
old_dbusobj._dbus_access,
803
old_dbusobj._dbus_get_args_options["byte_arrays"])
804
(types.FunctionType
805
(old_dbusobj.func_code,
806
old_dbusobj.func_globals,
807
old_dbusobj.func_name,
808
old_dbusobj.func_defaults,
809
old_dbusobj.func_closure)))
810
811
attr[attrname] = new_dbusfunc
812
return type.__new__(mcs, name, bases, attr)
813
1055
1056
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1057
"""A class decorator; applied to a subclass of
1058
dbus.service.Object, it will add alternate D-Bus attributes with
1059
interface names according to the "alt_interface_names" mapping.
1060
Usage:
1061
1062
@alternate_dbus_interfaces({"org.example.Interface":
1063
"net.example.AlternateInterface"})
1064
class SampleDBusObject(dbus.service.Object):
1065
@dbus.service.method("org.example.Interface")
1066
def SampleDBusMethod():
1067
pass
1068
1069
The above "SampleDBusMethod" on "SampleDBusObject" will be
1070
reachable via two interfaces: "org.example.Interface" and
1071
"net.example.AlternateInterface", the latter of which will have
1072
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1073
"true", unless "deprecate" is passed with a False value.
1074
1075
This works for methods and signals, and also for D-Bus properties
1076
(from DBusObjectWithProperties) and interfaces (from the
1077
dbus_interface_annotations decorator).
1078
"""
1079
def wrapper(cls):
1080
for orig_interface_name, alt_interface_name in (
1081
alt_interface_names.iteritems()):
1082
attr = {}
1083
interface_names = set()
1084
# Go though all attributes of the class
1085
for attrname, attribute in inspect.getmembers(cls):
1086
# Ignore non-D-Bus attributes, and D-Bus attributes
1087
# with the wrong interface name
1088
if (not hasattr(attribute, "_dbus_interface")
1089
or not attribute._dbus_interface
1090
.startswith(orig_interface_name)):
1091
continue
1092
# Create an alternate D-Bus interface name based on
1093
# the current name
1094
alt_interface = (attribute._dbus_interface
1095
.replace(orig_interface_name,
1096
alt_interface_name))
1097
interface_names.add(alt_interface)
1098
# Is this a D-Bus signal?
1099
if getattr(attribute, "_dbus_is_signal", False):
1100
# Extract the original non-method undecorated
1101
# function by black magic
1102
nonmethod_func = (dict(
1103
zip(attribute.func_code.co_freevars,
1104
attribute.__closure__))["func"]
1105
.cell_contents)
1106
# Create a new, but exactly alike, function
1107
# object, and decorate it to be a new D-Bus signal
1108
# with the alternate D-Bus interface name
1109
new_function = (dbus.service.signal
1110
(alt_interface,
1111
attribute._dbus_signature)
1112
(types.FunctionType(
1113
nonmethod_func.func_code,
1114
nonmethod_func.func_globals,
1115
nonmethod_func.func_name,
1116
nonmethod_func.func_defaults,
1117
nonmethod_func.func_closure)))
1118
# Copy annotations, if any
1119
try:
1120
new_function._dbus_annotations = (
1121
dict(attribute._dbus_annotations))
1122
except AttributeError:
1123
pass
1124
# Define a creator of a function to call both the
1125
# original and alternate functions, so both the
1126
# original and alternate signals gets sent when
1127
# the function is called
1128
def fixscope(func1, func2):
1129
"""This function is a scope container to pass
1130
func1 and func2 to the "call_both" function
1131
outside of its arguments"""
1132
def call_both(*args, **kwargs):
1133
"""This function will emit two D-Bus
1134
signals by calling func1 and func2"""
1135
func1(*args, **kwargs)
1136
func2(*args, **kwargs)
1137
return call_both
1138
# Create the "call_both" function and add it to
1139
# the class
1140
attr[attrname] = fixscope(attribute, new_function)
1141
# Is this a D-Bus method?
1142
elif getattr(attribute, "_dbus_is_method", False):
1143
# Create a new, but exactly alike, function
1144
# object. Decorate it to be a new D-Bus method
1145
# with the alternate D-Bus interface name. Add it
1146
# to the class.
1147
attr[attrname] = (dbus.service.method
1148
(alt_interface,
1149
attribute._dbus_in_signature,
1150
attribute._dbus_out_signature)
1151
(types.FunctionType
1152
(attribute.func_code,
1153
attribute.func_globals,
1154
attribute.func_name,
1155
attribute.func_defaults,
1156
attribute.func_closure)))
1157
# Copy annotations, if any
1158
try:
1159
attr[attrname]._dbus_annotations = (
1160
dict(attribute._dbus_annotations))
1161
except AttributeError:
1162
pass
1163
# Is this a D-Bus property?
1164
elif getattr(attribute, "_dbus_is_property", False):
1165
# Create a new, but exactly alike, function
1166
# object, and decorate it to be a new D-Bus
1167
# property with the alternate D-Bus interface
1168
# name. Add it to the class.
1169
attr[attrname] = (dbus_service_property
1170
(alt_interface,
1171
attribute._dbus_signature,
1172
attribute._dbus_access,
1173
attribute
1174
._dbus_get_args_options
1175
["byte_arrays"])
1176
(types.FunctionType
1177
(attribute.func_code,
1178
attribute.func_globals,
1179
attribute.func_name,
1180
attribute.func_defaults,
1181
attribute.func_closure)))
1182
# Copy annotations, if any
1183
try:
1184
attr[attrname]._dbus_annotations = (
1185
dict(attribute._dbus_annotations))
1186
except AttributeError:
1187
pass
1188
# Is this a D-Bus interface?
1189
elif getattr(attribute, "_dbus_is_interface", False):
1190
# Create a new, but exactly alike, function
1191
# object. Decorate it to be a new D-Bus interface
1192
# with the alternate D-Bus interface name. Add it
1193
# to the class.
1194
attr[attrname] = (dbus_interface_annotations
1195
(alt_interface)
1196
(types.FunctionType
1197
(attribute.func_code,
1198
attribute.func_globals,
1199
attribute.func_name,
1200
attribute.func_defaults,
1201
attribute.func_closure)))
1202
if deprecate:
1203
# Deprecate all alternate interfaces
1204
iname="_AlternateDBusNames_interface_annotation{0}"
1205
for interface_name in interface_names:
1206
@dbus_interface_annotations(interface_name)
1207
def func(self):
1208
return { "org.freedesktop.DBus.Deprecated":
1209
"true" }
1210
# Find an unused name
1211
for aname in (iname.format(i)
1212
for i in itertools.count()):
1213
if aname not in attr:
1214
attr[aname] = func
1215
break
1216
if interface_names:
1217
# Replace the class with a new subclass of it with
1218
# methods, signals, etc. as created above.
1219
cls = type(b"{0}Alternate".format(cls.__name__),
1220
(cls,), attr)
1221
return cls
1222
return wrapper
1223
1224
1225
@alternate_dbus_interfaces({"se.recompile.Mandos":
1226
"se.bsnet.fukt.Mandos"})
814
1227
class ClientDBus(Client, DBusObjectWithProperties):
815
1228
"""A Client class using D-Bus
816
1229
825
1238
# dbus.service.Object doesn't use super(), so we can't either.
826
1239
827
1240
def __init__(self, bus = None, *args, **kwargs):
828
self._approvals_pending = 0
829
1241
self.bus = bus
830
1242
Client.__init__(self, *args, **kwargs)
831
1243
# Only now, when this client is initialized, can it show up on
837
1249
("/clients/" + client_object_name))
838
1250
DBusObjectWithProperties.__init__(self, self.bus,
839
1251
self.dbus_object_path)
840
1252
841
1253
def notifychangeproperty(transform_func,
842
1254
dbus_name, type_func=lambda x: x,
843
1255
variant_level=1):
844
""" Modify a variable so that its a property that announce its
845
changes to DBus.
846
transform_fun: Function that takes a value and transform it to
847
DBus type.
848
dbus_name: DBus name of the variable
1256
""" Modify a variable so that it's a property which announces
1257
its changes to DBus.
1258
1259
transform_fun: Function that takes a value and a variant_level
1260
and transforms it to a D-Bus type.
1261
dbus_name: D-Bus name of the variable
849
1262
type_func: Function that transform the value before sending it
850
to DBus
851
variant_level: DBus variant level. default: 1
1263
to the D-Bus. Default: no transform
1264
variant_level: D-Bus variant level. Default: 1
852
1265
"""
853
real_value = [None,]
1266
attrname = "_{0}".format(dbus_name)
854
1267
def setter(self, value):
855
old_value = real_value[0]
856
real_value[0] = value
857
1268
if hasattr(self, "dbus_object_path"):
858
if type_func(old_value) != type_func(real_value[0]):
859
dbus_value = transform_func(type_func(real_value[0]),
860
variant_level)
1269
if (not hasattr(self, attrname) or
1270
type_func(getattr(self, attrname, None))
1271
!= type_func(value)):
1272
dbus_value = transform_func(type_func(value),
1273
variant_level
1274
=variant_level)
861
1275
self.PropertyChanged(dbus.String(dbus_name),
862
1276
dbus_value)
1277
setattr(self, attrname, value)
863
1278
864
return property(lambda self: real_value[0], setter)
865
1279
return property(lambda self: getattr(self, attrname), setter)
866
1280
867
1281
expires = notifychangeproperty(datetime_to_dbus, "Expires")
868
1282
approvals_pending = notifychangeproperty(dbus.Boolean,
872
1286
last_enabled = notifychangeproperty(datetime_to_dbus,
873
1287
"LastEnabled")
874
1288
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
875
type_func = lambda checker: checker is not None)
1289
type_func = lambda checker:
1290
checker is not None)
876
1291
last_checked_ok = notifychangeproperty(datetime_to_dbus,
877
1292
"LastCheckedOK")
878
last_approval_request = notifychangeproperty(datetime_to_dbus,
879
"LastApprovalRequest")
1293
last_checker_status = notifychangeproperty(dbus.Int16,
1294
"LastCheckerStatus")
1295
last_approval_request = notifychangeproperty(
1296
datetime_to_dbus, "LastApprovalRequest")
880
1297
approved_by_default = notifychangeproperty(dbus.Boolean,
881
1298
"ApprovedByDefault")
882
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
883
type_func = _timedelta_to_milliseconds)
884
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
885
type_func = _timedelta_to_milliseconds)
1299
approval_delay = notifychangeproperty(dbus.UInt64,
1300
"ApprovalDelay",
1301
type_func =
1302
timedelta_to_milliseconds)
1303
approval_duration = notifychangeproperty(
1304
dbus.UInt64, "ApprovalDuration",
1305
type_func = timedelta_to_milliseconds)
886
1306
host = notifychangeproperty(dbus.String, "Host")
887
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
888
type_func = _timedelta_to_milliseconds)
889
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
890
type_func = _timedelta_to_milliseconds)
891
interval = notifychangeproperty(dbus.UInt16, "Interval",
892
type_func = _timedelta_to_milliseconds)
1307
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1308
type_func =
1309
timedelta_to_milliseconds)
1310
extended_timeout = notifychangeproperty(
1311
dbus.UInt64, "ExtendedTimeout",
1312
type_func = timedelta_to_milliseconds)
1313
interval = notifychangeproperty(dbus.UInt64,
1314
"Interval",
1315
type_func =
1316
timedelta_to_milliseconds)
893
1317
checker_command = notifychangeproperty(dbus.String, "Checker")
894
1318
895
1319
del notifychangeproperty
937
1361
return r
938
1362
939
1363
def _reset_approved(self):
940
self._approved = None
1364
self.approved = None
941
1365
return False
942
1366
943
1367
def approve(self, value=True):
944
self.send_changedstate()
945
self._approved = value
946
gobject.timeout_add(_timedelta_to_milliseconds
1368
self.approved = value
1369
gobject.timeout_add(timedelta_to_milliseconds
947
1370
(self.approval_duration),
948
1371
self._reset_approved)
949
1372
self.send_changedstate()
950
1373
951
1374
## D-Bus methods, signals & properties
952
_interface = "se.bsnet.fukt.Mandos.Client"
953
1375
_interface = "se.recompile.Mandos.Client"
1376
1377
## Interfaces
1378
1379
@dbus_interface_annotations(_interface)
1380
def _foo(self):
1381
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1382
"false"}
1383
954
1384
## Signals
955
1385
956
1386
# CheckerCompleted - signal
1055
1485
access="readwrite")
1056
1486
def ApprovalDuration_dbus_property(self, value=None):
1057
1487
if value is None: # get
1058
return dbus.UInt64(_timedelta_to_milliseconds(
1488
return dbus.UInt64(timedelta_to_milliseconds(
1059
1489
self.approval_duration))
1060
1490
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1061
1491
1075
1505
def Host_dbus_property(self, value=None):
1076
1506
if value is None: # get
1077
1507
return dbus.String(self.host)
1078
self.host = value
1508
self.host = unicode(value)
1079
1509
1080
1510
# Created - property
1081
1511
@dbus_service_property(_interface, signature="s", access="read")
1082
1512
def Created_dbus_property(self):
1083
return dbus.String(datetime_to_dbus(self.created))
1513
return datetime_to_dbus(self.created)
1084
1514
1085
1515
# LastEnabled - property
1086
1516
@dbus_service_property(_interface, signature="s", access="read")
1107
1537
return
1108
1538
return datetime_to_dbus(self.last_checked_ok)
1109
1539
1540
# LastCheckerStatus - property
1541
@dbus_service_property(_interface, signature="n",
1542
access="read")
1543
def LastCheckerStatus_dbus_property(self):
1544
return dbus.Int16(self.last_checker_status)
1545
1110
1546
# Expires - property
1111
1547
@dbus_service_property(_interface, signature="s", access="read")
1112
1548
def Expires_dbus_property(self):
1123
1559
def Timeout_dbus_property(self, value=None):
1124
1560
if value is None: # get
1125
1561
return dbus.UInt64(self.timeout_milliseconds())
1562
old_timeout = self.timeout
1126
1563
self.timeout = datetime.timedelta(0, 0, 0, value)
1127
if getattr(self, "disable_initiator_tag", None) is None:
1128
return
1129
# Reschedule timeout
1130
gobject.source_remove(self.disable_initiator_tag)
1131
self.disable_initiator_tag = None
1132
self.expires = None
1133
time_to_die = (self.
1134
_timedelta_to_milliseconds((self
1135
.last_checked_ok
1136
+ self.timeout)
1137
- datetime.datetime
1138
.utcnow()))
1139
if time_to_die <= 0:
1140
# The timeout has passed
1141
self.disable()
1142
else:
1143
self.expires = (datetime.datetime.utcnow()
1144
+ datetime.timedelta(milliseconds = time_to_die))
1145
self.disable_initiator_tag = (gobject.timeout_add
1146
(time_to_die, self.disable))
1564
# Reschedule disabling
1565
if self.enabled:
1566
now = datetime.datetime.utcnow()
1567
self.expires += self.timeout - old_timeout
1568
if self.expires <= now:
1569
# The timeout has passed
1570
self.disable()
1571
else:
1572
if (getattr(self, "disable_initiator_tag", None)
1573
is None):
1574
return
1575
gobject.source_remove(self.disable_initiator_tag)
1576
self.disable_initiator_tag = (
1577
gobject.timeout_add(
1578
timedelta_to_milliseconds(self.expires - now),
1579
self.disable))
1147
1580
1148
1581
# ExtendedTimeout - property
1149
1582
@dbus_service_property(_interface, signature="t",
1162
1595
self.interval = datetime.timedelta(0, 0, 0, value)
1163
1596
if getattr(self, "checker_initiator_tag", None) is None:
1164
1597
return
1165
# Reschedule checker run
1166
gobject.source_remove(self.checker_initiator_tag)
1167
self.checker_initiator_tag = (gobject.timeout_add
1168
(value, self.start_checker))
1169
self.start_checker() # Start one now, too
1598
if self.enabled:
1599
# Reschedule checker run
1600
gobject.source_remove(self.checker_initiator_tag)
1601
self.checker_initiator_tag = (gobject.timeout_add
1602
(value, self.start_checker))
1603
self.start_checker() # Start one now, too
1170
1604
1171
1605
# Checker - property
1172
1606
@dbus_service_property(_interface, signature="s",
1174
1608
def Checker_dbus_property(self, value=None):
1175
1609
if value is None: # get
1176
1610
return dbus.String(self.checker_command)
1177
self.checker_command = value
1611
self.checker_command = unicode(value)
1178
1612
1179
1613
# CheckerRunning - property
1180
1614
@dbus_service_property(_interface, signature="b",
1209
1643
raise KeyError()
1210
1644
1211
1645
def __getattribute__(self, name):
1212
if(name == '_pipe'):
1646
if name == '_pipe':
1213
1647
return super(ProxyClient, self).__getattribute__(name)
1214
1648
self._pipe.send(('getattr', name))
1215
1649
data = self._pipe.recv()
1222
1656
return func
1223
1657
1224
1658
def __setattr__(self, name, value):
1225
if(name == '_pipe'):
1659
if name == '_pipe':
1226
1660
return super(ProxyClient, self).__setattr__(name, value)
1227
1661
self._pipe.send(('setattr', name, value))
1228
1662
1229
class ClientDBusTransitional(ClientDBus):
1230
__metaclass__ = transitional_dbus_metaclass
1231
1663
1232
1664
class ClientHandler(socketserver.BaseRequestHandler, object):
1233
1665
"""A class to handle client connections.
1313
1745
client.name)
1314
1746
if self.server.use_dbus:
1315
1747
# Emit D-Bus signal
1316
client.Rejected("Disabled")
1748
client.Rejected("Disabled")
1317
1749
return
1318
1750
1319
if client._approved or not client.approval_delay:
1751
if client.approved or not client.approval_delay:
1320
1752
#We are approved or approval is disabled
1321
1753
break
1322
elif client._approved is None:
1754
elif client.approved is None:
1323
1755
logger.info("Client %s needs approval",
1324
1756
client.name)
1325
1757
if self.server.use_dbus:
1336
1768
return
1337
1769
1338
1770
#wait until timeout or approved
1339
#x = float(client._timedelta_to_milliseconds(delay))
1340
1771
time = datetime.datetime.now()
1341
1772
client.changedstate.acquire()
1342
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1773
client.changedstate.wait(
1774
float(timedelta_to_milliseconds(delay)
1775
/ 1000))
1343
1776
client.changedstate.release()
1344
1777
time2 = datetime.datetime.now()
1345
1778
if (time2 - time) >= delay:
1361
1794
try:
1362
1795
sent = session.send(client.secret[sent_size:])
1363
1796
except gnutls.errors.GNUTLSError as error:
1364
logger.warning("gnutls send failed")
1797
logger.warning("gnutls send failed",
1798
exc_info=error)
1365
1799
return
1366
1800
logger.debug("Sent: %d, remaining: %d",
1367
1801
sent, len(client.secret)
1369
1803
sent_size += sent
1370
1804
1371
1805
logger.info("Sending secret to %s", client.name)
1372
# bump the timeout as if seen
1373
client.checked_ok(client.extended_timeout)
1806
# bump the timeout using extended_timeout
1807
client.bump_timeout(client.extended_timeout)
1374
1808
if self.server.use_dbus:
1375
1809
# Emit D-Bus signal
1376
1810
client.GotSecret()
1381
1815
try:
1382
1816
session.bye()
1383
1817
except gnutls.errors.GNUTLSError as error:
1384
logger.warning("GnuTLS bye failed")
1818
logger.warning("GnuTLS bye failed",
1819
exc_info=error)
1385
1820
1386
1821
@staticmethod
1387
1822
def peer_certificate(session):
1443
1878
# Convert the buffer to a Python bytestring
1444
1879
fpr = ctypes.string_at(buf, buf_len.value)
1445
1880
# Convert the bytestring to hexadecimal notation
1446
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1881
hex_fpr = binascii.hexlify(fpr).upper()
1447
1882
return hex_fpr
1448
1883
1449
1884
1452
1887
def sub_process_main(self, request, address):
1453
1888
try:
1454
1889
self.finish_request(request, address)
1455
except:
1890
except Exception:
1456
1891
self.handle_error(request, address)
1457
1892
self.close_request(request)
1458
1893
1459
1894
def process_request(self, request, address):
1460
1895
"""Start a new process to process the request."""
1461
multiprocessing.Process(target = self.sub_process_main,
1462
args = (request, address)).start()
1896
proc = multiprocessing.Process(target = self.sub_process_main,
1897
args = (request, address))
1898
proc.start()
1899
return proc
1463
1900
1464
1901
1465
1902
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1471
1908
"""
1472
1909
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1473
1910
1474
super(MultiprocessingMixInWithPipe,
1475
self).process_request(request, client_address)
1911
proc = MultiprocessingMixIn.process_request(self, request,
1912
client_address)
1476
1913
self.child_pipe.close()
1477
self.add_pipe(parent_pipe)
1914
self.add_pipe(parent_pipe, proc)
1478
1915
1479
def add_pipe(self, parent_pipe):
1916
def add_pipe(self, parent_pipe, proc):
1480
1917
"""Dummy function; override as necessary"""
1481
1918
raise NotImplementedError
1482
1919
1491
1928
use_ipv6: Boolean; to use IPv6 or not
1492
1929
"""
1493
1930
def __init__(self, server_address, RequestHandlerClass,
1494
interface=None, use_ipv6=True):
1931
interface=None, use_ipv6=True, socketfd=None):
1932
"""If socketfd is set, use that file descriptor instead of
1933
creating a new one with socket.socket().
1934
"""
1495
1935
self.interface = interface
1496
1936
if use_ipv6:
1497
1937
self.address_family = socket.AF_INET6
1938
if socketfd is not None:
1939
# Save the file descriptor
1940
self.socketfd = socketfd
1941
# Save the original socket.socket() function
1942
self.socket_socket = socket.socket
1943
# To implement --socket, we monkey patch socket.socket.
1944
#
1945
# (When socketserver.TCPServer is a new-style class, we
1946
# could make self.socket into a property instead of monkey
1947
# patching socket.socket.)
1948
#
1949
# Create a one-time-only replacement for socket.socket()
1950
@functools.wraps(socket.socket)
1951
def socket_wrapper(*args, **kwargs):
1952
# Restore original function so subsequent calls are
1953
# not affected.
1954
socket.socket = self.socket_socket
1955
del self.socket_socket
1956
# This time only, return a new socket object from the
1957
# saved file descriptor.
1958
return socket.fromfd(self.socketfd, *args, **kwargs)
1959
# Replace socket.socket() function with wrapper
1960
socket.socket = socket_wrapper
1961
# The socketserver.TCPServer.__init__ will call
1962
# socket.socket(), which might be our replacement,
1963
# socket_wrapper(), if socketfd was set.
1498
1964
socketserver.TCPServer.__init__(self, server_address,
1499
1965
RequestHandlerClass)
1966
1500
1967
def server_bind(self):
1501
1968
"""This overrides the normal server_bind() function
1502
1969
to bind to an interface if one was specified, and also NOT to
1510
1977
try:
1511
1978
self.socket.setsockopt(socket.SOL_SOCKET,
1512
1979
SO_BINDTODEVICE,
1513
str(self.interface
1514
+ '\0'))
1980
str(self.interface + '\0'))
1515
1981
except socket.error as error:
1516
if error[0] == errno.EPERM:
1517
logger.error("No permission to"
1518
" bind to interface %s",
1519
self.interface)
1520
elif error[0] == errno.ENOPROTOOPT:
1982
if error.errno == errno.EPERM:
1983
logger.error("No permission to bind to"
1984
" interface %s", self.interface)
1985
elif error.errno == errno.ENOPROTOOPT:
1521
1986
logger.error("SO_BINDTODEVICE not available;"
1522
1987
" cannot bind to interface %s",
1523
1988
self.interface)
1989
elif error.errno == errno.ENODEV:
1990
logger.error("Interface %s does not exist,"
1991
" cannot bind", self.interface)
1524
1992
else:
1525
1993
raise
1526
1994
# Only bind(2) the socket if we really need to.
1529
1997
if self.address_family == socket.AF_INET6:
1530
1998
any_address = "::" # in6addr_any
1531
1999
else:
1532
any_address = socket.INADDR_ANY
2000
any_address = "0.0.0.0" # INADDR_ANY
1533
2001
self.server_address = (any_address,
1534
2002
self.server_address[1])
1535
2003
elif not self.server_address[1]:
1556
2024
"""
1557
2025
def __init__(self, server_address, RequestHandlerClass,
1558
2026
interface=None, use_ipv6=True, clients=None,
1559
gnutls_priority=None, use_dbus=True):
2027
gnutls_priority=None, use_dbus=True, socketfd=None):
1560
2028
self.enabled = False
1561
2029
self.clients = clients
1562
2030
if self.clients is None:
1563
self.clients = set()
2031
self.clients = {}
1564
2032
self.use_dbus = use_dbus
1565
2033
self.gnutls_priority = gnutls_priority
1566
2034
IPv6_TCPServer.__init__(self, server_address,
1567
2035
RequestHandlerClass,
1568
2036
interface = interface,
1569
use_ipv6 = use_ipv6)
2037
use_ipv6 = use_ipv6,
2038
socketfd = socketfd)
1570
2039
def server_activate(self):
1571
2040
if self.enabled:
1572
2041
return socketserver.TCPServer.server_activate(self)
2042
1573
2043
def enable(self):
1574
2044
self.enabled = True
1575
def add_pipe(self, parent_pipe):
2045
2046
def add_pipe(self, parent_pipe, proc):
1576
2047
# Call "handle_ipc" for both data and EOF events
1577
2048
gobject.io_add_watch(parent_pipe.fileno(),
1578
2049
gobject.IO_IN | gobject.IO_HUP,
1579
2050
functools.partial(self.handle_ipc,
1580
parent_pipe = parent_pipe))
1581
2051
parent_pipe =
2052
parent_pipe,
2053
proc = proc))
2054
1582
2055
def handle_ipc(self, source, condition, parent_pipe=None,
1583
client_object=None):
1584
condition_names = {
1585
gobject.IO_IN: "IN", # There is data to read.
1586
gobject.IO_OUT: "OUT", # Data can be written (without
1587
# blocking).
1588
gobject.IO_PRI: "PRI", # There is urgent data to read.
1589
gobject.IO_ERR: "ERR", # Error condition.
1590
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1591
# broken, usually for pipes and
1592
# sockets).
1593
}
1594
conditions_string = ' | '.join(name
1595
for cond, name in
1596
condition_names.iteritems()
1597
if cond & condition)
1598
# error or the other end of multiprocessing.Pipe has closed
1599
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2056
proc = None, client_object=None):
2057
# error, or the other end of multiprocessing.Pipe has closed
2058
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2059
# Wait for other process to exit
2060
proc.join()
1600
2061
return False
1601
2062
1602
2063
# Read a request from the child
1607
2068
fpr = request[1]
1608
2069
address = request[2]
1609
2070
1610
for c in self.clients:
2071
for c in self.clients.itervalues():
1611
2072
if c.fingerprint == fpr:
1612
2073
client = c
1613
2074
break
1616
2077
"dress: %s", fpr, address)
1617
2078
if self.use_dbus:
1618
2079
# Emit D-Bus signal
1619
mandos_dbus_service.ClientNotFound(fpr, address[0])
2080
mandos_dbus_service.ClientNotFound(fpr,
2081
address[0])
1620
2082
parent_pipe.send(False)
1621
2083
return False
1622
2084
1623
2085
gobject.io_add_watch(parent_pipe.fileno(),
1624
2086
gobject.IO_IN | gobject.IO_HUP,
1625
2087
functools.partial(self.handle_ipc,
1626
parent_pipe = parent_pipe,
1627
client_object = client))
2088
parent_pipe =
2089
parent_pipe,
2090
proc = proc,
2091
client_object =
2092
client))
1628
2093
parent_pipe.send(True)
1629
# remove the old hook in favor of the new above hook on same fileno
2094
# remove the old hook in favor of the new above hook on
2095
# same fileno
1630
2096
return False
1631
2097
if command == 'funcall':
1632
2098
funcname = request[1]
1633
2099
args = request[2]
1634
2100
kwargs = request[3]
1635
2101
1636
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2102
parent_pipe.send(('data', getattr(client_object,
2103
funcname)(*args,
2104
**kwargs)))
1637
2105
1638
2106
if command == 'getattr':
1639
2107
attrname = request[1]
1640
2108
if callable(client_object.__getattribute__(attrname)):
1641
2109
parent_pipe.send(('function',))
1642
2110
else:
1643
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2111
parent_pipe.send(('data', client_object
2112
.__getattribute__(attrname)))
1644
2113
1645
2114
if command == 'setattr':
1646
2115
attrname = request[1]
1650
2119
return True
1651
2120
1652
2121
2122
def rfc3339_duration_to_delta(duration):
2123
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2124
2125
>>> rfc3339_duration_to_delta("P7D")
2126
datetime.timedelta(7)
2127
>>> rfc3339_duration_to_delta("PT60S")
2128
datetime.timedelta(0, 60)
2129
>>> rfc3339_duration_to_delta("PT60M")
2130
datetime.timedelta(0, 3600)
2131
>>> rfc3339_duration_to_delta("PT24H")
2132
datetime.timedelta(1)
2133
>>> rfc3339_duration_to_delta("P1W")
2134
datetime.timedelta(7)
2135
>>> rfc3339_duration_to_delta("PT5M30S")
2136
datetime.timedelta(0, 330)
2137
>>> rfc3339_duration_to_delta("P1DT3M20S")
2138
datetime.timedelta(1, 200)
2139
"""
2140
2141
# Parsing an RFC 3339 duration with regular expressions is not
2142
# possible - there would have to be multiple places for the same
2143
# values, like seconds. The current code, while more esoteric, is
2144
# cleaner without depending on a parsing library. If Python had a
2145
# built-in library for parsing we would use it, but we'd like to
2146
# avoid excessive use of external libraries.
2147
2148
# New type for defining tokens, syntax, and semantics all-in-one
2149
Token = collections.namedtuple("Token",
2150
("regexp", # To match token; if
2151
# "value" is not None,
2152
# must have a "group"
2153
# containing digits
2154
"value", # datetime.timedelta or
2155
# None
2156
"followers")) # Tokens valid after
2157
# this token
2158
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2159
# the "duration" ABNF definition in RFC 3339, Appendix A.
2160
token_end = Token(re.compile(r"$"), None, frozenset())
2161
token_second = Token(re.compile(r"(\d+)S"),
2162
datetime.timedelta(seconds=1),
2163
frozenset((token_end,)))
2164
token_minute = Token(re.compile(r"(\d+)M"),
2165
datetime.timedelta(minutes=1),
2166
frozenset((token_second, token_end)))
2167
token_hour = Token(re.compile(r"(\d+)H"),
2168
datetime.timedelta(hours=1),
2169
frozenset((token_minute, token_end)))
2170
token_time = Token(re.compile(r"T"),
2171
None,
2172
frozenset((token_hour, token_minute,
2173
token_second)))
2174
token_day = Token(re.compile(r"(\d+)D"),
2175
datetime.timedelta(days=1),
2176
frozenset((token_time, token_end)))
2177
token_month = Token(re.compile(r"(\d+)M"),
2178
datetime.timedelta(weeks=4),
2179
frozenset((token_day, token_end)))
2180
token_year = Token(re.compile(r"(\d+)Y"),
2181
datetime.timedelta(weeks=52),
2182
frozenset((token_month, token_end)))
2183
token_week = Token(re.compile(r"(\d+)W"),
2184
datetime.timedelta(weeks=1),
2185
frozenset((token_end,)))
2186
token_duration = Token(re.compile(r"P"), None,
2187
frozenset((token_year, token_month,
2188
token_day, token_time,
2189
token_week))),
2190
# Define starting values
2191
value = datetime.timedelta() # Value so far
2192
found_token = None
2193
followers = frozenset(token_duration,) # Following valid tokens
2194
s = duration # String left to parse
2195
# Loop until end token is found
2196
while found_token is not token_end:
2197
# Search for any currently valid tokens
2198
for token in followers:
2199
match = token.regexp.match(s)
2200
if match is not None:
2201
# Token found
2202
if token.value is not None:
2203
# Value found, parse digits
2204
factor = int(match.group(1), 10)
2205
# Add to value so far
2206
value += factor * token.value
2207
# Strip token from string
2208
s = token.regexp.sub("", s, 1)
2209
# Go to found token
2210
found_token = token
2211
# Set valid next tokens
2212
followers = found_token.followers
2213
break
2214
else:
2215
# No currently valid tokens were found
2216
raise ValueError("Invalid RFC 3339 duration")
2217
# End token found
2218
return value
2219
2220
1653
2221
def string_to_delta(interval):
1654
2222
"""Parse a string and return a datetime.timedelta
1655
2223
1666
2234
>>> string_to_delta('5m 30s')
1667
2235
datetime.timedelta(0, 330)
1668
2236
"""
2237
2238
try:
2239
return rfc3339_duration_to_delta(interval)
2240
except ValueError:
2241
pass
2242
1669
2243
timevalue = datetime.timedelta(0)
1670
2244
for s in interval.split():
1671
2245
try:
1682
2256
elif suffix == "w":
1683
2257
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1684
2258
else:
1685
raise ValueError("Unknown suffix %r" % suffix)
2259
raise ValueError("Unknown suffix {0!r}"
2260
.format(suffix))
1686
2261
except (ValueError, IndexError) as e:
1687
2262
raise ValueError(*(e.args))
1688
2263
timevalue += delta
1689
2264
return timevalue
1690
2265
1691
2266
1692
def if_nametoindex(interface):
1693
"""Call the C function if_nametoindex(), or equivalent
1694
1695
Note: This function cannot accept a unicode string."""
1696
global if_nametoindex
1697
try:
1698
if_nametoindex = (ctypes.cdll.LoadLibrary
1699
(ctypes.util.find_library("c"))
1700
.if_nametoindex)
1701
except (OSError, AttributeError):
1702
logger.warning("Doing if_nametoindex the hard way")
1703
def if_nametoindex(interface):
1704
"Get an interface index the hard way, i.e. using fcntl()"
1705
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1706
with contextlib.closing(socket.socket()) as s:
1707
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1708
struct.pack(str("16s16x"),
1709
interface))
1710
interface_index = struct.unpack(str("I"),
1711
ifreq[16:20])[0]
1712
return interface_index
1713
return if_nametoindex(interface)
1714
1715
1716
2267
def daemon(nochdir = False, noclose = False):
1717
2268
"""See daemon(3). Standard BSD Unix function.
1718
2269
1726
2277
sys.exit()
1727
2278
if not noclose:
1728
2279
# Close all standard open file descriptors
1729
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2280
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1730
2281
if not stat.S_ISCHR(os.fstat(null).st_mode):
1731
2282
raise OSError(errno.ENODEV,
1732
"%s not a character device"
1733
% os.path.devnull)
2283
"{0} not a character device"
2284
.format(os.devnull))
1734
2285
os.dup2(null, sys.stdin.fileno())
1735
2286
os.dup2(null, sys.stdout.fileno())
1736
2287
os.dup2(null, sys.stderr.fileno())
1745
2296
1746
2297
parser = argparse.ArgumentParser()
1747
2298
parser.add_argument("-v", "--version", action="version",
1748
version = "%%(prog)s %s" % version,
2299
version = "%(prog)s {0}".format(version),
1749
2300
help="show version number and exit")
1750
2301
parser.add_argument("-i", "--interface", metavar="IF",
1751
2302
help="Bind to interface IF")
1757
2308
help="Run self-test")
1758
2309
parser.add_argument("--debug", action="store_true",
1759
2310
help="Debug mode; run in foreground and log"
1760
" to terminal")
2311
" to terminal", default=None)
1761
2312
parser.add_argument("--debuglevel", metavar="LEVEL",
1762
2313
help="Debug level for stdout output")
1763
2314
parser.add_argument("--priority", help="GnuTLS"
1770
2321
" files")
1771
2322
parser.add_argument("--no-dbus", action="store_false",
1772
2323
dest="use_dbus", help="Do not provide D-Bus"
1773
" system bus interface")
2324
" system bus interface", default=None)
1774
2325
parser.add_argument("--no-ipv6", action="store_false",
1775
dest="use_ipv6", help="Do not use IPv6")
2326
dest="use_ipv6", help="Do not use IPv6",
2327
default=None)
2328
parser.add_argument("--no-restore", action="store_false",
2329
dest="restore", help="Do not restore stored"
2330
" state", default=None)
2331
parser.add_argument("--socket", type=int,
2332
help="Specify a file descriptor to a network"
2333
" socket to use instead of creating one")
2334
parser.add_argument("--statedir", metavar="DIR",
2335
help="Directory to save/restore state in")
2336
parser.add_argument("--foreground", action="store_true",
2337
help="Run in foreground", default=None)
2338
1776
2339
options = parser.parse_args()
1777
2340
1778
2341
if options.check:
1786
2349
"port": "",
1787
2350
"debug": "False",
1788
2351
"priority":
1789
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2352
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
1790
2353
"servicename": "Mandos",
1791
2354
"use_dbus": "True",
1792
2355
"use_ipv6": "True",
1793
2356
"debuglevel": "",
2357
"restore": "True",
2358
"socket": "",
2359
"statedir": "/var/lib/mandos",
2360
"foreground": "False",
1794
2361
}
1795
2362
1796
2363
# Parse config file for server-global settings
1801
2368
# Convert the SafeConfigParser object to a dict
1802
2369
server_settings = server_config.defaults()
1803
2370
# Use the appropriate methods on the non-string config options
1804
for option in ("debug", "use_dbus", "use_ipv6"):
2371
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1805
2372
server_settings[option] = server_config.getboolean("DEFAULT",
1806
2373
option)
1807
2374
if server_settings["port"]:
1808
2375
server_settings["port"] = server_config.getint("DEFAULT",
1809
2376
"port")
2377
if server_settings["socket"]:
2378
server_settings["socket"] = server_config.getint("DEFAULT",
2379
"socket")
2380
# Later, stdin will, and stdout and stderr might, be dup'ed
2381
# over with an opened os.devnull. But we don't want this to
2382
# happen with a supplied network socket.
2383
if 0 <= server_settings["socket"] <= 2:
2384
server_settings["socket"] = os.dup(server_settings
2385
["socket"])
1810
2386
del server_config
1811
2387
1812
2388
# Override the settings from the config file with command line
1813
2389
# options, if set.
1814
2390
for option in ("interface", "address", "port", "debug",
1815
2391
"priority", "servicename", "configdir",
1816
"use_dbus", "use_ipv6", "debuglevel"):
2392
"use_dbus", "use_ipv6", "debuglevel", "restore",
2393
"statedir", "socket", "foreground"):
1817
2394
value = getattr(options, option)
1818
2395
if value is not None:
1819
2396
server_settings[option] = value
1822
2399
for option in server_settings.keys():
1823
2400
if type(server_settings[option]) is str:
1824
2401
server_settings[option] = unicode(server_settings[option])
2402
# Force all boolean options to be boolean
2403
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2404
"foreground"):
2405
server_settings[option] = bool(server_settings[option])
2406
# Debug implies foreground
2407
if server_settings["debug"]:
2408
server_settings["foreground"] = True
1825
2409
# Now we have our good server settings in "server_settings"
1826
2410
1827
2411
##################################################################
1831
2415
debuglevel = server_settings["debuglevel"]
1832
2416
use_dbus = server_settings["use_dbus"]
1833
2417
use_ipv6 = server_settings["use_ipv6"]
2418
stored_state_path = os.path.join(server_settings["statedir"],
2419
stored_state_file)
2420
foreground = server_settings["foreground"]
2421
2422
if debug:
2423
initlogger(debug, logging.DEBUG)
2424
else:
2425
if not debuglevel:
2426
initlogger(debug)
2427
else:
2428
level = getattr(logging, debuglevel.upper())
2429
initlogger(debug, level)
1834
2430
1835
2431
if server_settings["servicename"] != "Mandos":
1836
2432
syslogger.setFormatter(logging.Formatter
1837
('Mandos (%s) [%%(process)d]:'
1838
' %%(levelname)s: %%(message)s'
1839
% server_settings["servicename"]))
2433
('Mandos ({0}) [%(process)d]:'
2434
' %(levelname)s: %(message)s'
2435
.format(server_settings
2436
["servicename"])))
1840
2437
1841
2438
# Parse config file with clients
1842
client_defaults = { "timeout": "5m",
1843
"extended_timeout": "15m",
1844
"interval": "2m",
1845
"checker": "fping -q -- %%(host)s",
1846
"host": "",
1847
"approval_delay": "0s",
1848
"approval_duration": "1s",
1849
}
1850
client_config = configparser.SafeConfigParser(client_defaults)
2439
client_config = configparser.SafeConfigParser(Client
2440
.client_defaults)
1851
2441
client_config.read(os.path.join(server_settings["configdir"],
1852
2442
"clients.conf"))
1853
2443
1862
2452
use_ipv6=use_ipv6,
1863
2453
gnutls_priority=
1864
2454
server_settings["priority"],
1865
use_dbus=use_dbus)
1866
if not debug:
1867
pidfilename = "/var/run/mandos.pid"
2455
use_dbus=use_dbus,
2456
socketfd=(server_settings["socket"]
2457
or None))
2458
if not foreground:
2459
pidfilename = "/run/mandos.pid"
2460
pidfile = None
1868
2461
try:
1869
2462
pidfile = open(pidfilename, "w")
1870
except IOError:
1871
logger.error("Could not open file %r", pidfilename)
2463
except IOError as e:
2464
logger.error("Could not open file %r", pidfilename,
2465
exc_info=e)
1872
2466
1873
try:
1874
uid = pwd.getpwnam("_mandos").pw_uid
1875
gid = pwd.getpwnam("_mandos").pw_gid
1876
except KeyError:
2467
for name in ("_mandos", "mandos", "nobody"):
1877
2468
try:
1878
uid = pwd.getpwnam("mandos").pw_uid
1879
gid = pwd.getpwnam("mandos").pw_gid
2469
uid = pwd.getpwnam(name).pw_uid
2470
gid = pwd.getpwnam(name).pw_gid
2471
break
1880
2472
except KeyError:
1881
try:
1882
uid = pwd.getpwnam("nobody").pw_uid
1883
gid = pwd.getpwnam("nobody").pw_gid
1884
except KeyError:
1885
uid = 65534
1886
gid = 65534
2473
continue
2474
else:
2475
uid = 65534
2476
gid = 65534
1887
2477
try:
1888
2478
os.setgid(gid)
1889
2479
os.setuid(uid)
1890
2480
except OSError as error:
1891
if error[0] != errno.EPERM:
2481
if error.errno != errno.EPERM:
1892
2482
raise error
1893
2483
1894
if not debug and not debuglevel:
1895
syslogger.setLevel(logging.WARNING)
1896
console.setLevel(logging.WARNING)
1897
if debuglevel:
1898
level = getattr(logging, debuglevel.upper())
1899
syslogger.setLevel(level)
1900
console.setLevel(level)
1901
1902
2484
if debug:
1903
2485
# Enable all possible GnuTLS debugging
1904
2486
1914
2496
.gnutls_global_set_log_function(debug_gnutls))
1915
2497
1916
2498
# Redirect stdin so all checkers get /dev/null
1917
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2499
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1918
2500
os.dup2(null, sys.stdin.fileno())
1919
2501
if null > 2:
1920
2502
os.close(null)
1921
else:
1922
# No console logging
1923
logger.removeHandler(console)
1924
2503
1925
2504
# Need to fork before connecting to D-Bus
1926
if not debug:
2505
if not foreground:
1927
2506
# Close all input and output, do double fork, etc.
1928
2507
daemon()
1929
2508
2509
# multiprocessing will use threads, so before we use gobject we
2510
# need to inform gobject that threads will be used.
2511
gobject.threads_init()
2512
1930
2513
global main_loop
1931
2514
# From the Avahi example code
1932
DBusGMainLoop(set_as_default=True )
2515
DBusGMainLoop(set_as_default=True)
1933
2516
main_loop = gobject.MainLoop()
1934
2517
bus = dbus.SystemBus()
1935
2518
# End of Avahi example code
1936
2519
if use_dbus:
1937
2520
try:
1938
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1939
bus, do_not_queue=True)
1940
bus_name2 = dbus.service.BusName("se.recompile.Mandos",
1941
bus, do_not_queue=True)
2521
bus_name = dbus.service.BusName("se.recompile.Mandos",
2522
bus, do_not_queue=True)
2523
old_bus_name = (dbus.service.BusName
2524
("se.bsnet.fukt.Mandos", bus,
2525
do_not_queue=True))
1942
2526
except dbus.exceptions.NameExistsException as e:
1943
logger.error(unicode(e) + ", disabling D-Bus")
2527
logger.error("Disabling D-Bus:", exc_info=e)
1944
2528
use_dbus = False
1945
2529
server_settings["use_dbus"] = False
1946
2530
tcp_server.use_dbus = False
1947
2531
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1948
service = AvahiService(name = server_settings["servicename"],
1949
servicetype = "_mandos._tcp",
1950
protocol = protocol, bus = bus)
2532
service = AvahiServiceToSyslog(name =
2533
server_settings["servicename"],
2534
servicetype = "_mandos._tcp",
2535
protocol = protocol, bus = bus)
1951
2536
if server_settings["interface"]:
1952
2537
service.interface = (if_nametoindex
1953
2538
(str(server_settings["interface"])))
1957
2542
1958
2543
client_class = Client
1959
2544
if use_dbus:
1960
client_class = functools.partial(ClientDBusTransitional, bus = bus)
1961
def client_config_items(config, section):
1962
special_settings = {
1963
"approved_by_default":
1964
lambda: config.getboolean(section,
1965
"approved_by_default"),
1966
}
1967
for name, value in config.items(section):
2545
client_class = functools.partial(ClientDBus, bus = bus)
2546
2547
client_settings = Client.config_parser(client_config)
2548
old_client_settings = {}
2549
clients_data = {}
2550
2551
# This is used to redirect stdout and stderr for checker processes
2552
global wnull
2553
wnull = open(os.devnull, "w") # A writable /dev/null
2554
# Only used if server is running in foreground but not in debug
2555
# mode
2556
if debug or not foreground:
2557
wnull.close()
2558
2559
# Get client data and settings from last running state.
2560
if server_settings["restore"]:
2561
try:
2562
with open(stored_state_path, "rb") as stored_state:
2563
clients_data, old_client_settings = (pickle.load
2564
(stored_state))
2565
os.remove(stored_state_path)
2566
except IOError as e:
2567
if e.errno == errno.ENOENT:
2568
logger.warning("Could not load persistent state: {0}"
2569
.format(os.strerror(e.errno)))
2570
else:
2571
logger.critical("Could not load persistent state:",
2572
exc_info=e)
2573
raise
2574
except EOFError as e:
2575
logger.warning("Could not load persistent state: "
2576
"EOFError:", exc_info=e)
2577
2578
with PGPEngine() as pgp:
2579
for client_name, client in clients_data.iteritems():
2580
# Skip removed clients
2581
if client_name not in client_settings:
2582
continue
2583
2584
# Decide which value to use after restoring saved state.
2585
# We have three different values: Old config file,
2586
# new config file, and saved state.
2587
# New config value takes precedence if it differs from old
2588
# config value, otherwise use saved state.
2589
for name, value in client_settings[client_name].items():
2590
try:
2591
# For each value in new config, check if it
2592
# differs from the old config value (Except for
2593
# the "secret" attribute)
2594
if (name != "secret" and
2595
value != old_client_settings[client_name]
2596
[name]):
2597
client[name] = value
2598
except KeyError:
2599
pass
2600
2601
# Clients who has passed its expire date can still be
2602
# enabled if its last checker was successful. Clients
2603
# whose checker succeeded before we stored its state is
2604
# assumed to have successfully run all checkers during
2605
# downtime.
2606
if client["enabled"]:
2607
if datetime.datetime.utcnow() >= client["expires"]:
2608
if not client["last_checked_ok"]:
2609
logger.warning(
2610
"disabling client {0} - Client never "
2611
"performed a successful checker"
2612
.format(client_name))
2613
client["enabled"] = False
2614
elif client["last_checker_status"] != 0:
2615
logger.warning(
2616
"disabling client {0} - Client "
2617
"last checker failed with error code {1}"
2618
.format(client_name,
2619
client["last_checker_status"]))
2620
client["enabled"] = False
2621
else:
2622
client["expires"] = (datetime.datetime
2623
.utcnow()
2624
+ client["timeout"])
2625
logger.debug("Last checker succeeded,"
2626
" keeping {0} enabled"
2627
.format(client_name))
1968
2628
try:
1969
yield (name, special_settings[name]())
1970
except KeyError:
1971
yield (name, value)
1972
1973
tcp_server.clients.update(set(
1974
client_class(name = section,
1975
config= dict(client_config_items(
1976
client_config, section)))
1977
for section in client_config.sections()))
2629
client["secret"] = (
2630
pgp.decrypt(client["encrypted_secret"],
2631
client_settings[client_name]
2632
["secret"]))
2633
except PGPError:
2634
# If decryption fails, we use secret from new settings
2635
logger.debug("Failed to decrypt {0} old secret"
2636
.format(client_name))
2637
client["secret"] = (
2638
client_settings[client_name]["secret"])
2639
2640
# Add/remove clients based on new changes made to config
2641
for client_name in (set(old_client_settings)
2642
- set(client_settings)):
2643
del clients_data[client_name]
2644
for client_name in (set(client_settings)
2645
- set(old_client_settings)):
2646
clients_data[client_name] = client_settings[client_name]
2647
2648
# Create all client objects
2649
for client_name, client in clients_data.iteritems():
2650
tcp_server.clients[client_name] = client_class(
2651
name = client_name, settings = client,
2652
server_settings = server_settings)
2653
1978
2654
if not tcp_server.clients:
1979
2655
logger.warning("No clients defined")
1980
1981
if not debug:
1982
try:
1983
with pidfile:
1984
pid = os.getpid()
1985
pidfile.write(str(pid) + "\n".encode("utf-8"))
1986
del pidfile
1987
except IOError:
1988
logger.error("Could not write to file %r with PID %d",
1989
pidfilename, pid)
1990
except NameError:
1991
# "pidfile" was never created
1992
pass
2656
2657
if not foreground:
2658
if pidfile is not None:
2659
try:
2660
with pidfile:
2661
pid = os.getpid()
2662
pidfile.write(str(pid) + "\n".encode("utf-8"))
2663
except IOError:
2664
logger.error("Could not write to file %r with PID %d",
2665
pidfilename, pid)
2666
del pidfile
1993
2667
del pidfilename
1994
1995
signal.signal(signal.SIGINT, signal.SIG_IGN)
1996
2668
1997
2669
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1998
2670
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1999
2671
2000
2672
if use_dbus:
2001
class MandosDBusService(dbus.service.Object):
2673
@alternate_dbus_interfaces({"se.recompile.Mandos":
2674
"se.bsnet.fukt.Mandos"})
2675
class MandosDBusService(DBusObjectWithProperties):
2002
2676
"""A D-Bus proxy object"""
2003
2677
def __init__(self):
2004
2678
dbus.service.Object.__init__(self, bus, "/")
2005
_interface = "se.bsnet.fukt.Mandos"
2679
_interface = "se.recompile.Mandos"
2680
2681
@dbus_interface_annotations(_interface)
2682
def _foo(self):
2683
return { "org.freedesktop.DBus.Property"
2684
".EmitsChangedSignal":
2685
"false"}
2006
2686
2007
2687
@dbus.service.signal(_interface, signature="o")
2008
2688
def ClientAdded(self, objpath):
2023
2703
def GetAllClients(self):
2024
2704
"D-Bus method"
2025
2705
return dbus.Array(c.dbus_object_path
2026
for c in tcp_server.clients)
2706
for c in
2707
tcp_server.clients.itervalues())
2027
2708
2028
2709
@dbus.service.method(_interface,
2029
2710
out_signature="a{oa{sv}}")
2031
2712
"D-Bus method"
2032
2713
return dbus.Dictionary(
2033
2714
((c.dbus_object_path, c.GetAll(""))
2034
for c in tcp_server.clients),
2715
for c in tcp_server.clients.itervalues()),
2035
2716
signature="oa{sv}")
2036
2717
2037
2718
@dbus.service.method(_interface, in_signature="o")
2038
2719
def RemoveClient(self, object_path):
2039
2720
"D-Bus method"
2040
for c in tcp_server.clients:
2721
for c in tcp_server.clients.itervalues():
2041
2722
if c.dbus_object_path == object_path:
2042
tcp_server.clients.remove(c)
2723
del tcp_server.clients[c.name]
2043
2724
c.remove_from_connection()
2044
2725
# Don't signal anything except ClientRemoved
2045
2726
c.disable(quiet=True)
2050
2731
2051
2732
del _interface
2052
2733
2053
class MandosDBusServiceTransitional(MandosDBusService):
2054
__metaclass__ = transitional_dbus_metaclass
2055
mandos_dbus_service = MandosDBusServiceTransitional()
2734
mandos_dbus_service = MandosDBusService()
2056
2735
2057
2736
def cleanup():
2058
2737
"Cleanup function; run on exit"
2059
2738
service.cleanup()
2060
2739
2740
multiprocessing.active_children()
2741
wnull.close()
2742
if not (tcp_server.clients or client_settings):
2743
return
2744
2745
# Store client before exiting. Secrets are encrypted with key
2746
# based on what config file has. If config file is
2747
# removed/edited, old secret will thus be unrecovable.
2748
clients = {}
2749
with PGPEngine() as pgp:
2750
for client in tcp_server.clients.itervalues():
2751
key = client_settings[client.name]["secret"]
2752
client.encrypted_secret = pgp.encrypt(client.secret,
2753
key)
2754
client_dict = {}
2755
2756
# A list of attributes that can not be pickled
2757
# + secret.
2758
exclude = set(("bus", "changedstate", "secret",
2759
"checker", "server_settings"))
2760
for name, typ in (inspect.getmembers
2761
(dbus.service.Object)):
2762
exclude.add(name)
2763
2764
client_dict["encrypted_secret"] = (client
2765
.encrypted_secret)
2766
for attr in client.client_structure:
2767
if attr not in exclude:
2768
client_dict[attr] = getattr(client, attr)
2769
2770
clients[client.name] = client_dict
2771
del client_settings[client.name]["secret"]
2772
2773
try:
2774
with (tempfile.NamedTemporaryFile
2775
(mode='wb', suffix=".pickle", prefix='clients-',
2776
dir=os.path.dirname(stored_state_path),
2777
delete=False)) as stored_state:
2778
pickle.dump((clients, client_settings), stored_state)
2779
tempname=stored_state.name
2780
os.rename(tempname, stored_state_path)
2781
except (IOError, OSError) as e:
2782
if not debug:
2783
try:
2784
os.remove(tempname)
2785
except NameError:
2786
pass
2787
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2788
logger.warning("Could not save persistent state: {0}"
2789
.format(os.strerror(e.errno)))
2790
else:
2791
logger.warning("Could not save persistent state:",
2792
exc_info=e)
2793
raise e
2794
2795
# Delete all clients, and settings from config
2061
2796
while tcp_server.clients:
2062
client = tcp_server.clients.pop()
2797
name, client = tcp_server.clients.popitem()
2063
2798
if use_dbus:
2064
2799
client.remove_from_connection()
2065
client.disable_hook = None
2066
2800
# Don't signal anything except ClientRemoved
2067
2801
client.disable(quiet=True)
2068
2802
if use_dbus:
2069
2803
# Emit D-Bus signal
2070
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2804
mandos_dbus_service.ClientRemoved(client
2805
.dbus_object_path,
2071
2806
client.name)
2807
client_settings.clear()
2072
2808
2073
2809
atexit.register(cleanup)
2074
2810
2075
for client in tcp_server.clients:
2811
for client in tcp_server.clients.itervalues():
2076
2812
if use_dbus:
2077
2813
# Emit D-Bus signal
2078
2814
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2079
client.enable()
2815
# Need to initiate checking of clients
2816
if client.enabled:
2817
client.init_checker()
2080
2818
2081
2819
tcp_server.enable()
2082
2820
tcp_server.server_activate()
2085
2823
service.port = tcp_server.socket.getsockname()[1]
2086
2824
if use_ipv6:
2087
2825
logger.info("Now listening on address %r, port %d,"
2088
" flowinfo %d, scope_id %d"
2089
% tcp_server.socket.getsockname())
2826
" flowinfo %d, scope_id %d",
2827
*tcp_server.socket.getsockname())
2090
2828
else: # IPv4
2091
logger.info("Now listening on address %r, port %d"
2092
% tcp_server.socket.getsockname())
2829
logger.info("Now listening on address %r, port %d",
2830
*tcp_server.socket.getsockname())
2093
2831
2094
2832
#service.interface = tcp_server.socket.getsockname()[3]
2095
2833
2098
2836
try:
2099
2837
service.activate()
2100
2838
except dbus.exceptions.DBusException as error:
2101
logger.critical("DBusException: %s", error)
2839
logger.critical("D-Bus Exception", exc_info=error)
2102
2840
cleanup()
2103
2841
sys.exit(1)
2104
2842
# End of Avahi example code
2111
2849
logger.debug("Starting main loop")
2112
2850
main_loop.run()
2113
2851
except AvahiError as error:
2114
logger.critical("AvahiError: %s", error)
2852
logger.critical("Avahi Error", exc_info=error)
2115
2853
cleanup()
2116
2854
sys.exit(1)
2117
2855
except KeyboardInterrupt:
2122
2860
# Must run before the D-Bus bus name gets deregistered
2123
2861
cleanup()
2124
2862
2125
2126
2863
if __name__ == '__main__':
2127
2864
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0