88
80
except ImportError:
89
81
SO_BINDTODEVICE = None
92
stored_state_file = "clients.pickle"
94
logger = logging.getLogger()
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
95
88
syslogger = (logging.handlers.SysLogHandler
96
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
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"),
111
interface_index = struct.unpack(str("I"),
113
return interface_index
116
def initlogger(debug, level=logging.WARNING):
117
"""init logger and add loglevel"""
119
syslogger.setFormatter(logging.Formatter
120
('Mandos [%(process)d]: %(levelname)s:'
122
logger.addHandler(syslogger)
125
console = logging.StreamHandler()
126
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
130
logger.addHandler(console)
131
logger.setLevel(level)
134
class PGPError(Exception):
135
"""Exception if encryption/decryption fails"""
139
class PGPEngine(object):
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
142
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
143
self.gnupgargs = ['--batch',
144
'--home', self.tempdir,
152
def __exit__(self, exc_type, exc_value, traceback):
160
if self.tempdir is not None:
161
# Delete contents of tempdir
162
for root, dirs, files in os.walk(self.tempdir,
164
for filename in files:
165
os.remove(os.path.join(root, filename))
167
os.rmdir(os.path.join(root, dirname))
169
os.rmdir(self.tempdir)
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"))
183
def encrypt(self, data, password):
184
passphrase = self.password_encode(password)
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
187
passfile.write(passphrase)
189
proc = subprocess.Popen(['gpg', '--symmetric',
193
stdin = subprocess.PIPE,
194
stdout = subprocess.PIPE,
195
stderr = subprocess.PIPE)
196
ciphertext, err = proc.communicate(input = data)
197
if proc.returncode != 0:
201
def decrypt(self, data, password):
202
passphrase = self.password_encode(password)
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
205
passfile.write(passphrase)
207
proc = subprocess.Popen(['gpg', '--decrypt',
211
stdin = subprocess.PIPE,
212
stdout = subprocess.PIPE,
213
stderr = subprocess.PIPE)
214
decrypted_plaintext, err = proc.communicate(input
216
if proc.returncode != 0:
218
return decrypted_plaintext
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
94
logger.addHandler(syslogger)
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
100
logger.addHandler(console)
221
102
class AvahiError(Exception):
222
103
def __init__(self, value, *args, **kwargs):
322
197
dbus.UInt16(self.port),
323
198
avahi.string_array_to_txt_array(self.TXT))
324
199
self.group.Commit()
326
200
def entry_group_state_changed(self, state, error):
327
201
"""Derived from the Avahi example code"""
328
logger.debug("Avahi entry group state change: %i", state)
202
logger.debug(u"Avahi entry group state change: %i", state)
330
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
331
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
332
206
elif state == avahi.ENTRY_GROUP_COLLISION:
333
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
335
209
elif state == avahi.ENTRY_GROUP_FAILURE:
336
logger.critical("Avahi: Error in group state changed %s",
210
logger.critical(u"Avahi: Error in group state changed %s",
338
raise AvahiGroupError("State changed: {0!s}"
212
raise AvahiGroupError(u"State changed: %s"
341
214
def cleanup(self):
342
215
"""Derived from the Avahi example code"""
343
216
if self.group is not None:
346
except (dbus.exceptions.UnknownMethodException,
347
dbus.exceptions.DBusException):
349
218
self.group = None
352
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
353
220
"""Derived from the Avahi example code"""
354
logger.debug("Avahi server state change: %i", state)
355
bad_states = { avahi.SERVER_INVALID:
356
"Zeroconf server invalid",
357
avahi.SERVER_REGISTERING: None,
358
avahi.SERVER_COLLISION:
359
"Zeroconf server name collision",
360
avahi.SERVER_FAILURE:
361
"Zeroconf server failure" }
362
if state in bad_states:
363
if bad_states[state] is not None:
365
logger.error(bad_states[state])
367
logger.error(bad_states[state] + ": %r", error)
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
369
225
elif state == avahi.SERVER_RUNNING:
373
logger.debug("Unknown state: %r", state)
375
logger.debug("Unknown state: %r: %r", state, error)
377
227
def activate(self):
378
228
"""Derived from the Avahi example code"""
379
229
if self.server is None:
380
230
self.server = dbus.Interface(
381
231
self.bus.get_object(avahi.DBUS_NAME,
382
avahi.DBUS_PATH_SERVER,
383
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
384
233
avahi.DBUS_INTERFACE_SERVER)
385
self.server.connect_to_signal("StateChanged",
234
self.server.connect_to_signal(u"StateChanged",
386
235
self.server_state_changed)
387
236
self.server_state_changed(self.server.GetState())
390
class AvahiServiceToSyslog(AvahiService):
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'
401
def timedelta_to_milliseconds(td):
402
"Convert a datetime.timedelta() to milliseconds"
403
return ((td.days * 24 * 60 * 60 * 1000)
404
+ (td.seconds * 1000)
405
+ (td.microseconds // 1000))
408
239
class Client(object):
409
240
"""A representation of a client host served by this server.
412
approved: bool(); 'None' if not yet approved/disapproved
243
_approved: bool(); 'None' if not yet approved/disapproved
413
244
approval_delay: datetime.timedelta(); Time to wait for approval
414
245
approval_duration: datetime.timedelta(); Duration of one approval
415
246
checker: subprocess.Popen(); a running checker process used
433
263
interval: datetime.timedelta(); How often to start a new checker
434
264
last_approval_request: datetime.datetime(); (UTC) or None
435
265
last_checked_ok: datetime.datetime(); (UTC) or None
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
266
last_enabled: datetime.datetime(); (UTC)
440
267
name: string; from the config file, used in log messages and
441
268
D-Bus identifiers
442
269
secret: bytestring; sent verbatim (over TLS) to client
443
270
timeout: datetime.timedelta(); How long from last_checked_ok
444
271
until this client is disabled
445
extended_timeout: extra long timeout when secret has been sent
446
272
runtime_expansions: Allowed attributes for runtime expansion.
447
expires: datetime.datetime(); time (UTC) when a client will be
449
server_settings: The server_settings dict from main()
452
runtime_expansions = ("approval_delay", "approval_duration",
453
"created", "enabled", "expires",
454
"fingerprint", "host", "interval",
455
"last_approval_request", "last_checked_ok",
456
"last_enabled", "name", "timeout")
457
client_defaults = { "timeout": "PT5M",
458
"extended_timeout": "PT15M",
460
"checker": "fping -q -- %%(host)s",
462
"approval_delay": "PT0S",
463
"approval_duration": "PT1S",
464
"approved_by_default": "True",
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
281
def _timedelta_to_milliseconds(td):
282
"Convert a datetime.timedelta() to milliseconds"
283
return ((td.days * 24 * 60 * 60 * 1000)
284
+ (td.seconds * 1000)
285
+ (td.microseconds // 1000))
468
287
def timeout_milliseconds(self):
469
288
"Return the 'timeout' attribute in milliseconds"
470
return timedelta_to_milliseconds(self.timeout)
472
def extended_timeout_milliseconds(self):
473
"Return the 'extended_timeout' attribute in milliseconds"
474
return timedelta_to_milliseconds(self.extended_timeout)
289
return self._timedelta_to_milliseconds(self.timeout)
476
291
def interval_milliseconds(self):
477
292
"Return the 'interval' attribute in milliseconds"
478
return timedelta_to_milliseconds(self.interval)
293
return self._timedelta_to_milliseconds(self.interval)
480
295
def approval_delay_milliseconds(self):
481
return timedelta_to_milliseconds(self.approval_delay)
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.
492
for client_name in config.sections():
493
section = dict(config.items(client_name))
494
client = settings[client_name] = {}
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,
503
client["fingerprint"] = (section["fingerprint"].upper()
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"])),
511
client["secret"] = secfile.read()
513
raise TypeError("No secret or secfile for section {0}"
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
530
def __init__(self, settings, name = None, server_settings=None):
296
return self._timedelta_to_milliseconds(self.approval_delay)
298
def __init__(self, name = None, disable_hook=None, config=None):
299
"""Note: the 'checker' key in 'config' sets the
300
'checker_command' attribute and *not* the 'checker'
532
if server_settings is None:
534
self.server_settings = server_settings
535
# adding all client settings
536
for setting, value in settings.iteritems():
537
setattr(self, setting, value)
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()
546
self.last_enabled = None
549
logger.debug("Creating client %r", self.name)
305
logger.debug(u"Creating client %r", self.name)
550
306
# Uppercase and remove spaces from fingerprint for later
551
307
# comparison purposes with return value from the fingerprint()
553
logger.debug(" Fingerprint: %s", self.fingerprint)
554
self.created = settings.get("created",
555
datetime.datetime.utcnow())
557
# attributes specific for this server instance
309
self.fingerprint = (config[u"fingerprint"].upper()
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
318
self.secret = secfile.read()
320
raise TypeError(u"No secret or secfile for client %s"
322
self.host = config.get(u"host", u"")
323
self.created = datetime.datetime.utcnow()
325
self.last_approval_request = None
326
self.last_enabled = None
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
330
self.disable_hook = disable_hook
558
331
self.checker = None
559
332
self.checker_initiator_tag = None
560
333
self.disable_initiator_tag = None
561
334
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
562
336
self.current_checker_command = None
337
self.last_connect = None
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
564
341
self.approvals_pending = 0
565
self.changedstate = (multiprocessing_manager
566
.Condition(multiprocessing_manager
568
self.client_structure = [attr for attr in
569
self.__dict__.iterkeys()
570
if not attr.startswith("_")]
571
self.client_structure.append("client_structure")
573
for name, t in inspect.getmembers(type(self),
577
if not name.startswith("_"):
578
self.client_structure.append(name)
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
580
# Send notice to process children that client state has changed
581
348
def send_changedstate(self):
582
with self.changedstate:
583
self.changedstate.notify_all()
349
self.changedstate.acquire()
350
self.changedstate.notify_all()
351
self.changedstate.release()
585
353
def enable(self):
586
354
"""Start this client's checker and timeout hooks"""
587
if getattr(self, "enabled", False):
355
if getattr(self, u"enabled", False):
588
356
# Already enabled
590
self.expires = datetime.datetime.utcnow() + self.timeout
358
self.send_changedstate()
592
359
self.last_enabled = datetime.datetime.utcnow()
594
self.send_changedstate()
596
def disable(self, quiet=True):
597
"""Disable this client."""
598
if not getattr(self, "enabled", False):
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
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
612
self.send_changedstate()
613
# Do not run this again if called by a gobject.timeout_add
619
def init_checker(self):
620
360
# Schedule a new checker to be started an 'interval' from now,
621
361
# and every interval from then on.
622
if self.checker_initiator_tag is not None:
623
gobject.source_remove(self.checker_initiator_tag)
624
362
self.checker_initiator_tag = (gobject.timeout_add
625
363
(self.interval_milliseconds(),
626
364
self.start_checker))
627
365
# Schedule a disable() when 'timeout' has passed
628
if self.disable_initiator_tag is not None:
629
gobject.source_remove(self.disable_initiator_tag)
630
366
self.disable_initiator_tag = (gobject.timeout_add
631
367
(self.timeout_milliseconds(),
633
370
# Also start a new checker *right now*.
634
371
self.start_checker()
373
def disable(self, quiet=True):
374
"""Disable this client."""
375
if not getattr(self, "enabled", False):
378
self.send_changedstate()
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
382
gobject.source_remove(self.disable_initiator_tag)
383
self.disable_initiator_tag = None
384
if getattr(self, u"checker_initiator_tag", False):
385
gobject.source_remove(self.checker_initiator_tag)
386
self.checker_initiator_tag = None
388
if self.disable_hook:
389
self.disable_hook(self)
391
# Do not run this again if called by a gobject.timeout_add
395
self.disable_hook = None
636
398
def checker_callback(self, pid, condition, command):
637
399
"""The checker has completed, so take appropriate actions."""
638
400
self.checker_callback_tag = None
639
401
self.checker = None
640
402
if os.WIFEXITED(condition):
641
self.last_checker_status = os.WEXITSTATUS(condition)
642
if self.last_checker_status == 0:
643
logger.info("Checker for %(name)s succeeded",
403
exitstatus = os.WEXITSTATUS(condition)
405
logger.info(u"Checker for %(name)s succeeded",
645
407
self.checked_ok()
647
logger.info("Checker for %(name)s failed",
409
logger.info(u"Checker for %(name)s failed",
650
self.last_checker_status = -1
651
logger.warning("Checker for %(name)s crashed?",
412
logger.warning(u"Checker for %(name)s crashed?",
654
415
def checked_ok(self):
655
"""Assert that the client has been seen, alive and well."""
416
"""Bump up the timeout for this client.
418
This should only be called when the client has been seen,
656
421
self.last_checked_ok = datetime.datetime.utcnow()
657
self.last_checker_status = 0
660
def bump_timeout(self, timeout=None):
661
"""Bump up the timeout for this client."""
663
timeout = self.timeout
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
422
gobject.source_remove(self.disable_initiator_tag)
423
self.disable_initiator_tag = (gobject.timeout_add
424
(self.timeout_milliseconds(),
673
427
def need_approval(self):
674
428
self.last_approval_request = datetime.datetime.utcnow()
690
444
# If a checker exists, make sure it is not a zombie
692
446
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
693
except AttributeError:
695
except OSError as error:
696
if error.errno != errno.ECHILD:
447
except (AttributeError, OSError), error:
448
if (isinstance(error, OSError)
449
and error.errno != errno.ECHILD):
700
logger.warning("Checker was a zombie")
453
logger.warning(u"Checker was a zombie")
701
454
gobject.source_remove(self.checker_callback_tag)
702
455
self.checker_callback(pid, status,
703
456
self.current_checker_command)
704
457
# Start a new checker if needed
705
458
if self.checker is None:
706
# Escape attributes for the shell
707
escaped_attrs = dict(
708
(attr, re.escape(unicode(getattr(self, attr))))
710
self.runtime_expansions)
712
command = self.checker_command % escaped_attrs
713
except TypeError as error:
714
logger.error('Could not format string "%s"',
715
self.checker_command, exc_info=error)
716
return True # Try again later
460
# In case checker_command has exactly one % operator
461
command = self.checker_command % self.host
463
# Escape attributes for the shell
464
escaped_attrs = dict(
466
re.escape(unicode(str(getattr(self, attr, u"")),
470
self.runtime_expansions)
473
command = self.checker_command % escaped_attrs
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
477
return True # Try again later
717
478
self.current_checker_command = command
719
logger.info("Starting checker %r for %s",
480
logger.info(u"Starting checker %r for %s",
720
481
command, self.name)
721
482
# We don't need to redirect stdout and stderr, since
722
483
# in normal mode, that is already done by daemon(),
723
484
# and in debug mode we don't want to. (Stdin is
724
485
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
733
486
self.checker = subprocess.Popen(command,
737
except OSError as error:
738
logger.error("Failed to start subprocess",
741
self.checker_callback_tag = (gobject.child_watch_add
743
self.checker_callback,
745
# The checker may have completed before the gobject
746
# watch was added. Check for this.
488
shell=True, cwd=u"/")
489
self.checker_callback_tag = (gobject.child_watch_add
491
self.checker_callback,
493
# The checker may have completed before the gobject
494
# watch was added. Check for this.
748
495
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
749
except OSError as error:
750
if error.errno == errno.ECHILD:
751
# This should never happen
752
logger.error("Child process vanished",
757
gobject.source_remove(self.checker_callback_tag)
758
self.checker_callback(pid, status, command)
497
gobject.source_remove(self.checker_callback_tag)
498
self.checker_callback(pid, status, command)
499
except OSError, error:
500
logger.error(u"Failed to start subprocess: %s",
759
502
# Re-run this periodically if run by gobject.timeout_add
867
572
class DBusObjectWithProperties(dbus.service.Object):
868
573
"""A D-Bus object with properties.
870
575
Classes inheriting from this can use the dbus_service_property
871
576
decorator to expose methods as D-Bus properties. It exposes the
872
577
standard Get(), Set(), and GetAll() methods on the D-Bus.
876
def _is_dbus_thing(thing):
877
"""Returns a function testing if an attribute is a D-Bus thing
879
If called like _is_dbus_thing("method") it returns a function
880
suitable for use as predicate to inspect.getmembers().
882
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
581
def _is_dbus_property(obj):
582
return getattr(obj, u"_dbus_is_property", False)
885
def _get_all_dbus_things(self, thing):
584
def _get_all_dbus_properties(self):
886
585
"""Returns a generator of (name, attribute) pairs
888
return ((getattr(athing.__get__(self), "_dbus_name",
890
athing.__get__(self))
891
for cls in self.__class__.__mro__
893
inspect.getmembers(cls,
894
self._is_dbus_thing(thing)))
587
return ((prop._dbus_name, prop)
589
inspect.getmembers(self, self._is_dbus_property))
896
591
def _get_dbus_property(self, interface_name, property_name):
897
592
"""Returns a bound method if one exists which is a D-Bus
898
593
property with the specified name and interface.
900
for cls in self.__class__.__mro__:
901
for name, value in (inspect.getmembers
903
self._is_dbus_thing("property"))):
904
if (value._dbus_name == property_name
905
and value._dbus_interface == interface_name):
906
return value.__get__(self)
595
for name in (property_name,
596
property_name + u"_dbus_property"):
597
prop = getattr(self, name, None)
599
or not self._is_dbus_property(prop)
600
or prop._dbus_name != property_name
601
or (interface_name and prop._dbus_interface
602
and interface_name != prop._dbus_interface)):
908
605
# No such property
909
raise DBusPropertyNotFound(self.dbus_object_path + ":"
910
+ interface_name + "."
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
913
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
915
612
def Get(self, interface_name, property_name):
916
613
"""Standard D-Bus property Get() method, see D-Bus standard.
918
615
prop = self._get_dbus_property(interface_name, property_name)
919
if prop._dbus_access == "write":
616
if prop._dbus_access == u"write":
920
617
raise DBusPropertyAccessException(property_name)
922
if not hasattr(value, "variant_level"):
619
if not hasattr(value, u"variant_level"):
924
621
return type(value)(value, variant_level=value.variant_level+1)
926
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
927
624
def Set(self, interface_name, property_name, value):
928
625
"""Standard D-Bus property Set() method, see D-Bus standard.
930
627
prop = self._get_dbus_property(interface_name, property_name)
931
if prop._dbus_access == "read":
628
if prop._dbus_access == u"read":
932
629
raise DBusPropertyAccessException(property_name)
933
if prop._dbus_get_args_options["byte_arrays"]:
630
if prop._dbus_get_args_options[u"byte_arrays"]:
934
631
# The byte_arrays option is not supported yet on
935
632
# signatures other than "ay".
936
if prop._dbus_signature != "ay":
937
raise ValueError("Byte arrays not supported for non-"
938
"'ay' signature {0!r}"
939
.format(prop._dbus_signature))
940
value = dbus.ByteArray(b''.join(chr(byte)
633
if prop._dbus_signature != u"ay":
635
value = dbus.ByteArray(''.join(unichr(byte)
944
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
945
out_signature="a{sv}")
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
946
641
def GetAll(self, interface_name):
947
642
"""Standard D-Bus property GetAll() method, see D-Bus
950
645
Note: Will not include properties with access="write".
953
for name, prop in self._get_all_dbus_things("property"):
648
for name, prop in self._get_all_dbus_properties():
954
649
if (interface_name
955
650
and interface_name != prop._dbus_interface):
956
651
# Interface non-empty but did not match
958
653
# Ignore write-only properties
959
if prop._dbus_access == "write":
654
if prop._dbus_access == u"write":
962
if not hasattr(value, "variant_level"):
963
properties[name] = value
657
if not hasattr(value, u"variant_level"):
965
properties[name] = type(value)(value, variant_level=
966
value.variant_level+1)
967
return dbus.Dictionary(properties, signature="sv")
660
all[name] = type(value)(value, variant_level=
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
969
664
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
971
666
path_keyword='object_path',
972
667
connection_keyword='connection')
973
668
def Introspect(self, object_path, connection):
974
"""Overloading of standard D-Bus method.
976
Inserts property tags and interface annotation tags.
669
"""Standard D-Bus method, overloaded to insert property tags.
978
671
xmlstring = dbus.service.Object.Introspect(self, object_path,
981
674
document = xml.dom.minidom.parseString(xmlstring)
982
675
def make_tag(document, name, prop):
983
e = document.createElement("property")
984
e.setAttribute("name", name)
985
e.setAttribute("type", prop._dbus_signature)
986
e.setAttribute("access", prop._dbus_access)
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
988
for if_tag in document.getElementsByTagName("interface"):
681
for if_tag in document.getElementsByTagName(u"interface"):
990
682
for tag in (make_tag(document, name, prop)
992
in self._get_all_dbus_things("property")
684
in self._get_all_dbus_properties()
993
685
if prop._dbus_interface
994
== if_tag.getAttribute("name")):
686
== if_tag.getAttribute(u"name")):
995
687
if_tag.appendChild(tag)
996
# Add annotation tags
997
for typ in ("method", "signal", "property"):
998
for tag in if_tag.getElementsByTagName(typ):
1000
for name, prop in (self.
1001
_get_all_dbus_things(typ)):
1002
if (name == tag.getAttribute("name")
1003
and prop._dbus_interface
1004
== if_tag.getAttribute("name")):
1005
annots.update(getattr
1007
"_dbus_annotations",
1009
for name, value in annots.iteritems():
1010
ann_tag = document.createElement(
1012
ann_tag.setAttribute("name", name)
1013
ann_tag.setAttribute("value", value)
1014
tag.appendChild(ann_tag)
1015
# Add interface annotation tags
1016
for annotation, value in dict(
1017
itertools.chain.from_iterable(
1018
annotations().iteritems()
1019
for name, annotations in
1020
self._get_all_dbus_things("interface")
1021
if name == if_tag.getAttribute("name")
1023
ann_tag = document.createElement("annotation")
1024
ann_tag.setAttribute("name", annotation)
1025
ann_tag.setAttribute("value", value)
1026
if_tag.appendChild(ann_tag)
1027
688
# Add the names to the return values for the
1028
689
# "org.freedesktop.DBus.Properties" methods
1029
if (if_tag.getAttribute("name")
1030
== "org.freedesktop.DBus.Properties"):
1031
for cn in if_tag.getElementsByTagName("method"):
1032
if cn.getAttribute("name") == "Get":
1033
for arg in cn.getElementsByTagName("arg"):
1034
if (arg.getAttribute("direction")
1036
arg.setAttribute("name", "value")
1037
elif cn.getAttribute("name") == "GetAll":
1038
for arg in cn.getElementsByTagName("arg"):
1039
if (arg.getAttribute("direction")
1041
arg.setAttribute("name", "props")
1042
xmlstring = document.toxml("utf-8")
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
1043
704
document.unlink()
1044
705
except (AttributeError, xml.dom.DOMException,
1045
xml.parsers.expat.ExpatError) as error:
1046
logger.error("Failed to override Introspection method",
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
1048
709
return xmlstring
1051
def datetime_to_dbus(dt, variant_level=0):
1052
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1054
return dbus.String("", variant_level = variant_level)
1055
return dbus.String(dt.isoformat(),
1056
variant_level=variant_level)
1059
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1060
"""A class decorator; applied to a subclass of
1061
dbus.service.Object, it will add alternate D-Bus attributes with
1062
interface names according to the "alt_interface_names" mapping.
1065
@alternate_dbus_interfaces({"org.example.Interface":
1066
"net.example.AlternateInterface"})
1067
class SampleDBusObject(dbus.service.Object):
1068
@dbus.service.method("org.example.Interface")
1069
def SampleDBusMethod():
1072
The above "SampleDBusMethod" on "SampleDBusObject" will be
1073
reachable via two interfaces: "org.example.Interface" and
1074
"net.example.AlternateInterface", the latter of which will have
1075
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1076
"true", unless "deprecate" is passed with a False value.
1078
This works for methods and signals, and also for D-Bus properties
1079
(from DBusObjectWithProperties) and interfaces (from the
1080
dbus_interface_annotations decorator).
1083
for orig_interface_name, alt_interface_name in (
1084
alt_interface_names.iteritems()):
1086
interface_names = set()
1087
# Go though all attributes of the class
1088
for attrname, attribute in inspect.getmembers(cls):
1089
# Ignore non-D-Bus attributes, and D-Bus attributes
1090
# with the wrong interface name
1091
if (not hasattr(attribute, "_dbus_interface")
1092
or not attribute._dbus_interface
1093
.startswith(orig_interface_name)):
1095
# Create an alternate D-Bus interface name based on
1097
alt_interface = (attribute._dbus_interface
1098
.replace(orig_interface_name,
1099
alt_interface_name))
1100
interface_names.add(alt_interface)
1101
# Is this a D-Bus signal?
1102
if getattr(attribute, "_dbus_is_signal", False):
1103
# Extract the original non-method undecorated
1104
# function by black magic
1105
nonmethod_func = (dict(
1106
zip(attribute.func_code.co_freevars,
1107
attribute.__closure__))["func"]
1109
# Create a new, but exactly alike, function
1110
# object, and decorate it to be a new D-Bus signal
1111
# with the alternate D-Bus interface name
1112
new_function = (dbus.service.signal
1114
attribute._dbus_signature)
1115
(types.FunctionType(
1116
nonmethod_func.func_code,
1117
nonmethod_func.func_globals,
1118
nonmethod_func.func_name,
1119
nonmethod_func.func_defaults,
1120
nonmethod_func.func_closure)))
1121
# Copy annotations, if any
1123
new_function._dbus_annotations = (
1124
dict(attribute._dbus_annotations))
1125
except AttributeError:
1127
# Define a creator of a function to call both the
1128
# original and alternate functions, so both the
1129
# original and alternate signals gets sent when
1130
# the function is called
1131
def fixscope(func1, func2):
1132
"""This function is a scope container to pass
1133
func1 and func2 to the "call_both" function
1134
outside of its arguments"""
1135
def call_both(*args, **kwargs):
1136
"""This function will emit two D-Bus
1137
signals by calling func1 and func2"""
1138
func1(*args, **kwargs)
1139
func2(*args, **kwargs)
1141
# Create the "call_both" function and add it to
1143
attr[attrname] = fixscope(attribute, new_function)
1144
# Is this a D-Bus method?
1145
elif getattr(attribute, "_dbus_is_method", False):
1146
# Create a new, but exactly alike, function
1147
# object. Decorate it to be a new D-Bus method
1148
# with the alternate D-Bus interface name. Add it
1150
attr[attrname] = (dbus.service.method
1152
attribute._dbus_in_signature,
1153
attribute._dbus_out_signature)
1155
(attribute.func_code,
1156
attribute.func_globals,
1157
attribute.func_name,
1158
attribute.func_defaults,
1159
attribute.func_closure)))
1160
# Copy annotations, if any
1162
attr[attrname]._dbus_annotations = (
1163
dict(attribute._dbus_annotations))
1164
except AttributeError:
1166
# Is this a D-Bus property?
1167
elif getattr(attribute, "_dbus_is_property", False):
1168
# Create a new, but exactly alike, function
1169
# object, and decorate it to be a new D-Bus
1170
# property with the alternate D-Bus interface
1171
# name. Add it to the class.
1172
attr[attrname] = (dbus_service_property
1174
attribute._dbus_signature,
1175
attribute._dbus_access,
1177
._dbus_get_args_options
1180
(attribute.func_code,
1181
attribute.func_globals,
1182
attribute.func_name,
1183
attribute.func_defaults,
1184
attribute.func_closure)))
1185
# Copy annotations, if any
1187
attr[attrname]._dbus_annotations = (
1188
dict(attribute._dbus_annotations))
1189
except AttributeError:
1191
# Is this a D-Bus interface?
1192
elif getattr(attribute, "_dbus_is_interface", False):
1193
# Create a new, but exactly alike, function
1194
# object. Decorate it to be a new D-Bus interface
1195
# with the alternate D-Bus interface name. Add it
1197
attr[attrname] = (dbus_interface_annotations
1200
(attribute.func_code,
1201
attribute.func_globals,
1202
attribute.func_name,
1203
attribute.func_defaults,
1204
attribute.func_closure)))
1206
# Deprecate all alternate interfaces
1207
iname="_AlternateDBusNames_interface_annotation{0}"
1208
for interface_name in interface_names:
1209
@dbus_interface_annotations(interface_name)
1211
return { "org.freedesktop.DBus.Deprecated":
1213
# Find an unused name
1214
for aname in (iname.format(i)
1215
for i in itertools.count()):
1216
if aname not in attr:
1220
# Replace the class with a new subclass of it with
1221
# methods, signals, etc. as created above.
1222
cls = type(b"{0}Alternate".format(cls.__name__),
1228
@alternate_dbus_interfaces({"se.recompile.Mandos":
1229
"se.bsnet.fukt.Mandos"})
1230
712
class ClientDBus(Client, DBusObjectWithProperties):
1231
713
"""A Client class using D-Bus
1238
720
runtime_expansions = (Client.runtime_expansions
1239
+ ("dbus_object_path",))
721
+ (u"dbus_object_path",))
1241
723
# dbus.service.Object doesn't use super(), so we can't either.
1243
725
def __init__(self, bus = None, *args, **kwargs):
726
self._approvals_pending = 0
1245
728
Client.__init__(self, *args, **kwargs)
1246
729
# Only now, when this client is initialized, can it show up on
1248
731
client_object_name = unicode(self.name).translate(
1249
{ord("."): ord("_"),
1250
ord("-"): ord("_")})
732
{ord(u"."): ord(u"_"),
733
ord(u"-"): ord(u"_")})
1251
734
self.dbus_object_path = (dbus.ObjectPath
1252
("/clients/" + client_object_name))
735
(u"/clients/" + client_object_name))
1253
736
DBusObjectWithProperties.__init__(self, self.bus,
1254
737
self.dbus_object_path)
1256
def notifychangeproperty(transform_func,
1257
dbus_name, type_func=lambda x: x,
1259
""" Modify a variable so that it's a property which announces
1260
its changes to DBus.
1262
transform_fun: Function that takes a value and a variant_level
1263
and transforms it to a D-Bus type.
1264
dbus_name: D-Bus name of the variable
1265
type_func: Function that transform the value before sending it
1266
to the D-Bus. Default: no transform
1267
variant_level: D-Bus variant level. Default: 1
1269
attrname = "_{0}".format(dbus_name)
1270
def setter(self, value):
1271
if hasattr(self, "dbus_object_path"):
1272
if (not hasattr(self, attrname) or
1273
type_func(getattr(self, attrname, None))
1274
!= type_func(value)):
1275
dbus_value = transform_func(type_func(value),
1278
self.PropertyChanged(dbus.String(dbus_name),
1280
setattr(self, attrname, value)
1282
return property(lambda self: getattr(self, attrname), setter)
1284
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1285
approvals_pending = notifychangeproperty(dbus.Boolean,
1288
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1289
last_enabled = notifychangeproperty(datetime_to_dbus,
1291
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1292
type_func = lambda checker:
1293
checker is not None)
1294
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1296
last_checker_status = notifychangeproperty(dbus.Int16,
1297
"LastCheckerStatus")
1298
last_approval_request = notifychangeproperty(
1299
datetime_to_dbus, "LastApprovalRequest")
1300
approved_by_default = notifychangeproperty(dbus.Boolean,
1301
"ApprovedByDefault")
1302
approval_delay = notifychangeproperty(dbus.UInt64,
1305
timedelta_to_milliseconds)
1306
approval_duration = notifychangeproperty(
1307
dbus.UInt64, "ApprovalDuration",
1308
type_func = timedelta_to_milliseconds)
1309
host = notifychangeproperty(dbus.String, "Host")
1310
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1312
timedelta_to_milliseconds)
1313
extended_timeout = notifychangeproperty(
1314
dbus.UInt64, "ExtendedTimeout",
1315
type_func = timedelta_to_milliseconds)
1316
interval = notifychangeproperty(dbus.UInt64,
1319
timedelta_to_milliseconds)
1320
checker_command = notifychangeproperty(dbus.String, "Checker")
1322
del notifychangeproperty
739
def _get_approvals_pending(self):
740
return self._approvals_pending
741
def _set_approvals_pending(self, value):
742
old_value = self._approvals_pending
743
self._approvals_pending = value
745
if (hasattr(self, "dbus_object_path")
746
and bval is not bool(old_value)):
747
dbus_bool = dbus.Boolean(bval, variant_level=1)
748
self.PropertyChanged(dbus.String(u"ApprovalPending"),
751
approvals_pending = property(_get_approvals_pending,
752
_set_approvals_pending)
753
del _get_approvals_pending, _set_approvals_pending
756
def _datetime_to_dbus(dt, variant_level=0):
757
"""Convert a UTC datetime.datetime() to a D-Bus type."""
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
762
oldstate = getattr(self, u"enabled", False)
763
r = Client.enable(self)
764
if oldstate != self.enabled:
766
self.PropertyChanged(dbus.String(u"Enabled"),
767
dbus.Boolean(True, variant_level=1))
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
770
self._datetime_to_dbus(self.last_enabled,
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
776
r = Client.disable(self, quiet=quiet)
777
if not quiet and oldstate != self.enabled:
779
self.PropertyChanged(dbus.String(u"Enabled"),
780
dbus.Boolean(False, variant_level=1))
1324
783
def __del__(self, *args, **kwargs):
1326
785
self.remove_from_connection()
1327
786
except LookupError:
1329
if hasattr(DBusObjectWithProperties, "__del__"):
788
if hasattr(DBusObjectWithProperties, u"__del__"):
1330
789
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1331
790
Client.__del__(self, *args, **kwargs)
1465
951
# ApprovalPending - property
1466
@dbus_service_property(_interface, signature="b", access="read")
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
1467
953
def ApprovalPending_dbus_property(self):
1468
954
return dbus.Boolean(bool(self.approvals_pending))
1470
956
# ApprovedByDefault - property
1471
@dbus_service_property(_interface, signature="b",
957
@dbus_service_property(_interface, signature=u"b",
1473
959
def ApprovedByDefault_dbus_property(self, value=None):
1474
960
if value is None: # get
1475
961
return dbus.Boolean(self.approved_by_default)
1476
962
self.approved_by_default = bool(value)
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
965
dbus.Boolean(value, variant_level=1))
1478
967
# ApprovalDelay - property
1479
@dbus_service_property(_interface, signature="t",
968
@dbus_service_property(_interface, signature=u"t",
1481
970
def ApprovalDelay_dbus_property(self, value=None):
1482
971
if value is None: # get
1483
972
return dbus.UInt64(self.approval_delay_milliseconds())
1484
973
self.approval_delay = datetime.timedelta(0, 0, 0, value)
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
976
dbus.UInt64(value, variant_level=1))
1486
978
# ApprovalDuration - property
1487
@dbus_service_property(_interface, signature="t",
979
@dbus_service_property(_interface, signature=u"t",
1489
981
def ApprovalDuration_dbus_property(self, value=None):
1490
982
if value is None: # get
1491
return dbus.UInt64(timedelta_to_milliseconds(
983
return dbus.UInt64(self._timedelta_to_milliseconds(
1492
984
self.approval_duration))
1493
985
self.approval_duration = datetime.timedelta(0, 0, 0, value)
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
988
dbus.UInt64(value, variant_level=1))
1495
990
# Name - property
1496
@dbus_service_property(_interface, signature="s", access="read")
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
1497
992
def Name_dbus_property(self):
1498
993
return dbus.String(self.name)
1500
995
# Fingerprint - property
1501
@dbus_service_property(_interface, signature="s", access="read")
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
1502
997
def Fingerprint_dbus_property(self):
1503
998
return dbus.String(self.fingerprint)
1505
1000
# Host - property
1506
@dbus_service_property(_interface, signature="s",
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
1508
1003
def Host_dbus_property(self, value=None):
1509
1004
if value is None: # get
1510
1005
return dbus.String(self.host)
1511
self.host = unicode(value)
1008
self.PropertyChanged(dbus.String(u"Host"),
1009
dbus.String(value, variant_level=1))
1513
1011
# Created - property
1514
@dbus_service_property(_interface, signature="s", access="read")
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
1515
1013
def Created_dbus_property(self):
1516
return datetime_to_dbus(self.created)
1014
return dbus.String(self._datetime_to_dbus(self.created))
1518
1016
# LastEnabled - property
1519
@dbus_service_property(_interface, signature="s", access="read")
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
1520
1018
def LastEnabled_dbus_property(self):
1521
return datetime_to_dbus(self.last_enabled)
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1523
1023
# Enabled - property
1524
@dbus_service_property(_interface, signature="b",
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
1526
1026
def Enabled_dbus_property(self, value=None):
1527
1027
if value is None: # get
1528
1028
return dbus.Boolean(self.enabled)
1534
1034
# LastCheckedOK - property
1535
@dbus_service_property(_interface, signature="s",
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
1537
1037
def LastCheckedOK_dbus_property(self, value=None):
1538
1038
if value is not None:
1539
1039
self.checked_ok()
1541
return datetime_to_dbus(self.last_checked_ok)
1543
# LastCheckerStatus - property
1544
@dbus_service_property(_interface, signature="n",
1546
def LastCheckerStatus_dbus_property(self):
1547
return dbus.Int16(self.last_checker_status)
1549
# Expires - property
1550
@dbus_service_property(_interface, signature="s", access="read")
1551
def Expires_dbus_property(self):
1552
return datetime_to_dbus(self.expires)
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1043
return dbus.String(self._datetime_to_dbus(self
1554
1046
# LastApprovalRequest - property
1555
@dbus_service_property(_interface, signature="s", access="read")
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
1556
1048
def LastApprovalRequest_dbus_property(self):
1557
return datetime_to_dbus(self.last_approval_request)
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1051
return dbus.String(self.
1052
_datetime_to_dbus(self
1053
.last_approval_request))
1559
1055
# Timeout - property
1560
@dbus_service_property(_interface, signature="t",
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
1562
1058
def Timeout_dbus_property(self, value=None):
1563
1059
if value is None: # get
1564
1060
return dbus.UInt64(self.timeout_milliseconds())
1565
old_timeout = self.timeout
1566
1061
self.timeout = datetime.timedelta(0, 0, 0, value)
1567
# Reschedule disabling
1569
now = datetime.datetime.utcnow()
1570
self.expires += self.timeout - old_timeout
1571
if self.expires <= now:
1572
# The timeout has passed
1575
if (getattr(self, "disable_initiator_tag", None)
1578
gobject.source_remove(self.disable_initiator_tag)
1579
self.disable_initiator_tag = (
1580
gobject.timeout_add(
1581
timedelta_to_milliseconds(self.expires - now),
1584
# ExtendedTimeout - property
1585
@dbus_service_property(_interface, signature="t",
1587
def ExtendedTimeout_dbus_property(self, value=None):
1588
if value is None: # get
1589
return dbus.UInt64(self.extended_timeout_milliseconds())
1590
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1067
# Reschedule timeout
1068
gobject.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = None
1070
time_to_die = (self.
1071
_timedelta_to_milliseconds((self
1076
if time_to_die <= 0:
1077
# The timeout has passed
1080
self.disable_initiator_tag = (gobject.timeout_add
1081
(time_to_die, self.disable))
1592
1083
# Interval - property
1593
@dbus_service_property(_interface, signature="t",
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
1595
1086
def Interval_dbus_property(self, value=None):
1596
1087
if value is None: # get
1597
1088
return dbus.UInt64(self.interval_milliseconds())
1598
1089
self.interval = datetime.timedelta(0, 0, 0, value)
1599
if getattr(self, "checker_initiator_tag", None) is None:
1091
self.PropertyChanged(dbus.String(u"Interval"),
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
1602
# Reschedule checker run
1603
gobject.source_remove(self.checker_initiator_tag)
1604
self.checker_initiator_tag = (gobject.timeout_add
1605
(value, self.start_checker))
1606
self.start_checker() # Start one now, too
1095
# Reschedule checker run
1096
gobject.source_remove(self.checker_initiator_tag)
1097
self.checker_initiator_tag = (gobject.timeout_add
1098
(value, self.start_checker))
1099
self.start_checker() # Start one now, too
1608
1101
# Checker - property
1609
@dbus_service_property(_interface, signature="s",
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
1611
1104
def Checker_dbus_property(self, value=None):
1612
1105
if value is None: # get
1613
1106
return dbus.String(self.checker_command)
1614
self.checker_command = unicode(value)
1107
self.checker_command = value
1109
self.PropertyChanged(dbus.String(u"Checker"),
1110
dbus.String(self.checker_command,
1616
1113
# CheckerRunning - property
1617
@dbus_service_property(_interface, signature="b",
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
1619
1116
def CheckerRunning_dbus_property(self, value=None):
1620
1117
if value is None: # get
1621
1118
return dbus.Boolean(self.checker is not None)
1673
1170
def handle(self):
1674
1171
with contextlib.closing(self.server.child_pipe) as child_pipe:
1675
logger.info("TCP connection from: %s",
1172
logger.info(u"TCP connection from: %s",
1676
1173
unicode(self.client_address))
1677
logger.debug("Pipe FD: %d",
1174
logger.debug(u"Pipe FD: %d",
1678
1175
self.server.child_pipe.fileno())
1680
1177
session = (gnutls.connection
1681
1178
.ClientSession(self.request,
1682
1179
gnutls.connection
1683
1180
.X509Credentials()))
1685
1182
# Note: gnutls.connection.X509Credentials is really a
1686
1183
# generic GnuTLS certificate credentials object so long as
1687
1184
# no X.509 keys are added to it. Therefore, we can use it
1688
1185
# here despite using OpenPGP certificates.
1690
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1691
# "+AES-256-CBC", "+SHA1",
1692
# "+COMP-NULL", "+CTYPE-OPENPGP",
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1694
1191
# Use a fallback default, since this MUST be set.
1695
1192
priority = self.server.gnutls_priority
1696
1193
if priority is None:
1194
priority = u"NORMAL"
1698
1195
(gnutls.library.functions
1699
1196
.gnutls_priority_set_direct(session._c_object,
1700
1197
priority, None))
1702
1199
# Start communication using the Mandos protocol
1703
1200
# Get protocol number
1704
1201
line = self.request.makefile().readline()
1705
logger.debug("Protocol version: %r", line)
1202
logger.debug(u"Protocol version: %r", line)
1707
1204
if int(line.strip().split()[0]) > 1:
1708
raise RuntimeError(line)
1709
except (ValueError, IndexError, RuntimeError) as error:
1710
logger.error("Unknown protocol version: %s", error)
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
1713
1210
# Start GnuTLS connection
1715
1212
session.handshake()
1716
except gnutls.errors.GNUTLSError as error:
1717
logger.warning("Handshake failed: %s", error)
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
1718
1215
# Do not run session.bye() here: the session is not
1719
1216
# established. Just abandon the request.
1721
logger.debug("Handshake succeeded")
1218
logger.debug(u"Handshake succeeded")
1723
1220
approval_required = False
1726
1223
fpr = self.fingerprint(self.peer_certificate
1729
gnutls.errors.GNUTLSError) as error:
1730
logger.warning("Bad certificate: %s", error)
1225
except (TypeError, gnutls.errors.GNUTLSError), error:
1226
logger.warning(u"Bad certificate: %s", error)
1732
logger.debug("Fingerprint: %s", fpr)
1228
logger.debug(u"Fingerprint: %s", fpr)
1735
1231
client = ProxyClient(child_pipe, fpr,
1736
1232
self.client_address)
1931
1420
use_ipv6: Boolean; to use IPv6 or not
1933
1422
def __init__(self, server_address, RequestHandlerClass,
1934
interface=None, use_ipv6=True, socketfd=None):
1935
"""If socketfd is set, use that file descriptor instead of
1936
creating a new one with socket.socket().
1423
interface=None, use_ipv6=True):
1938
1424
self.interface = interface
1940
1426
self.address_family = socket.AF_INET6
1941
if socketfd is not None:
1942
# Save the file descriptor
1943
self.socketfd = socketfd
1944
# Save the original socket.socket() function
1945
self.socket_socket = socket.socket
1946
# To implement --socket, we monkey patch socket.socket.
1948
# (When socketserver.TCPServer is a new-style class, we
1949
# could make self.socket into a property instead of monkey
1950
# patching socket.socket.)
1952
# Create a one-time-only replacement for socket.socket()
1953
@functools.wraps(socket.socket)
1954
def socket_wrapper(*args, **kwargs):
1955
# Restore original function so subsequent calls are
1957
socket.socket = self.socket_socket
1958
del self.socket_socket
1959
# This time only, return a new socket object from the
1960
# saved file descriptor.
1961
return socket.fromfd(self.socketfd, *args, **kwargs)
1962
# Replace socket.socket() function with wrapper
1963
socket.socket = socket_wrapper
1964
# The socketserver.TCPServer.__init__ will call
1965
# socket.socket(), which might be our replacement,
1966
# socket_wrapper(), if socketfd was set.
1967
1427
socketserver.TCPServer.__init__(self, server_address,
1968
1428
RequestHandlerClass)
1970
1429
def server_bind(self):
1971
1430
"""This overrides the normal server_bind() function
1972
1431
to bind to an interface if one was specified, and also NOT to
1973
1432
bind to an address or port if they were not specified."""
1974
1433
if self.interface is not None:
1975
1434
if SO_BINDTODEVICE is None:
1976
logger.error("SO_BINDTODEVICE does not exist;"
1977
" cannot bind to interface %s",
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
1978
1437
self.interface)
1981
1440
self.socket.setsockopt(socket.SOL_SOCKET,
1982
1441
SO_BINDTODEVICE,
1983
str(self.interface + '\0'))
1984
except socket.error as error:
1985
if error.errno == errno.EPERM:
1986
logger.error("No permission to bind to"
1987
" interface %s", self.interface)
1988
elif error.errno == errno.ENOPROTOOPT:
1989
logger.error("SO_BINDTODEVICE not available;"
1990
" cannot bind to interface %s",
1992
elif error.errno == errno.ENODEV:
1993
logger.error("Interface %s does not exist,"
1994
" cannot bind", self.interface)
1444
except socket.error, error:
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1997
1455
# Only bind(2) the socket if we really need to.
1998
1456
if self.server_address[0] or self.server_address[1]:
1999
1457
if not self.server_address[0]:
2000
1458
if self.address_family == socket.AF_INET6:
2001
any_address = "::" # in6addr_any
1459
any_address = u"::" # in6addr_any
2003
any_address = "0.0.0.0" # INADDR_ANY
1461
any_address = socket.INADDR_ANY
2004
1462
self.server_address = (any_address,
2005
1463
self.server_address[1])
2006
1464
elif not self.server_address[1]:
2071
1536
fpr = request[1]
2072
1537
address = request[2]
2074
for c in self.clients.itervalues():
1539
for c in self.clients:
2075
1540
if c.fingerprint == fpr:
2079
logger.info("Client not found for fingerprint: %s, ad"
2080
"dress: %s", fpr, address)
1544
logger.warning(u"Client not found for fingerprint: %s, ad"
1545
u"dress: %s", fpr, address)
2081
1546
if self.use_dbus:
2082
1547
# Emit D-Bus signal
2083
mandos_dbus_service.ClientNotFound(fpr,
1548
mandos_dbus_service.ClientNotFound(fpr, address[0])
2085
1549
parent_pipe.send(False)
2088
1552
gobject.io_add_watch(parent_pipe.fileno(),
2089
1553
gobject.IO_IN | gobject.IO_HUP,
2090
1554
functools.partial(self.handle_ipc,
1555
parent_pipe = parent_pipe,
1556
client_object = client))
2096
1557
parent_pipe.send(True)
2097
# remove the old hook in favor of the new above hook on
1558
# remove the old hook in favor of the new above hook on same fileno
2100
1560
if command == 'funcall':
2101
1561
funcname = request[1]
2102
1562
args = request[2]
2103
1563
kwargs = request[3]
2105
parent_pipe.send(('data', getattr(client_object,
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2109
1567
if command == 'getattr':
2110
1568
attrname = request[1]
2111
1569
if callable(client_object.__getattribute__(attrname)):
2112
1570
parent_pipe.send(('function',))
2114
parent_pipe.send(('data', client_object
2115
.__getattribute__(attrname)))
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2117
1574
if command == 'setattr':
2118
1575
attrname = request[1]
2119
1576
value = request[2]
2120
1577
setattr(client_object, attrname, value)
2125
def rfc3339_duration_to_delta(duration):
2126
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2128
>>> rfc3339_duration_to_delta("P7D")
2129
datetime.timedelta(7)
2130
>>> rfc3339_duration_to_delta("PT60S")
2131
datetime.timedelta(0, 60)
2132
>>> rfc3339_duration_to_delta("PT60M")
2133
datetime.timedelta(0, 3600)
2134
>>> rfc3339_duration_to_delta("PT24H")
2135
datetime.timedelta(1)
2136
>>> rfc3339_duration_to_delta("P1W")
2137
datetime.timedelta(7)
2138
>>> rfc3339_duration_to_delta("PT5M30S")
2139
datetime.timedelta(0, 330)
2140
>>> rfc3339_duration_to_delta("P1DT3M20S")
2141
datetime.timedelta(1, 200)
2144
# Parsing an RFC 3339 duration with regular expressions is not
2145
# possible - there would have to be multiple places for the same
2146
# values, like seconds. The current code, while more esoteric, is
2147
# cleaner without depending on a parsing library. If Python had a
2148
# built-in library for parsing we would use it, but we'd like to
2149
# avoid excessive use of external libraries.
2151
# New type for defining tokens, syntax, and semantics all-in-one
2152
Token = collections.namedtuple("Token",
2153
("regexp", # To match token; if
2154
# "value" is not None,
2155
# must have a "group"
2157
"value", # datetime.timedelta or
2159
"followers")) # Tokens valid after
2161
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2162
# the "duration" ABNF definition in RFC 3339, Appendix A.
2163
token_end = Token(re.compile(r"$"), None, frozenset())
2164
token_second = Token(re.compile(r"(\d+)S"),
2165
datetime.timedelta(seconds=1),
2166
frozenset((token_end,)))
2167
token_minute = Token(re.compile(r"(\d+)M"),
2168
datetime.timedelta(minutes=1),
2169
frozenset((token_second, token_end)))
2170
token_hour = Token(re.compile(r"(\d+)H"),
2171
datetime.timedelta(hours=1),
2172
frozenset((token_minute, token_end)))
2173
token_time = Token(re.compile(r"T"),
2175
frozenset((token_hour, token_minute,
2177
token_day = Token(re.compile(r"(\d+)D"),
2178
datetime.timedelta(days=1),
2179
frozenset((token_time, token_end)))
2180
token_month = Token(re.compile(r"(\d+)M"),
2181
datetime.timedelta(weeks=4),
2182
frozenset((token_day, token_end)))
2183
token_year = Token(re.compile(r"(\d+)Y"),
2184
datetime.timedelta(weeks=52),
2185
frozenset((token_month, token_end)))
2186
token_week = Token(re.compile(r"(\d+)W"),
2187
datetime.timedelta(weeks=1),
2188
frozenset((token_end,)))
2189
token_duration = Token(re.compile(r"P"), None,
2190
frozenset((token_year, token_month,
2191
token_day, token_time,
2193
# Define starting values
2194
value = datetime.timedelta() # Value so far
2196
followers = frozenset(token_duration,) # Following valid tokens
2197
s = duration # String left to parse
2198
# Loop until end token is found
2199
while found_token is not token_end:
2200
# Search for any currently valid tokens
2201
for token in followers:
2202
match = token.regexp.match(s)
2203
if match is not None:
2205
if token.value is not None:
2206
# Value found, parse digits
2207
factor = int(match.group(1), 10)
2208
# Add to value so far
2209
value += factor * token.value
2210
# Strip token from string
2211
s = token.regexp.sub("", s, 1)
2214
# Set valid next tokens
2215
followers = found_token.followers
2218
# No currently valid tokens were found
2219
raise ValueError("Invalid RFC 3339 duration")
2224
1582
def string_to_delta(interval):
2225
1583
"""Parse a string and return a datetime.timedelta
2227
>>> string_to_delta('7d')
1585
>>> string_to_delta(u'7d')
2228
1586
datetime.timedelta(7)
2229
>>> string_to_delta('60s')
1587
>>> string_to_delta(u'60s')
2230
1588
datetime.timedelta(0, 60)
2231
>>> string_to_delta('60m')
1589
>>> string_to_delta(u'60m')
2232
1590
datetime.timedelta(0, 3600)
2233
>>> string_to_delta('24h')
1591
>>> string_to_delta(u'24h')
2234
1592
datetime.timedelta(1)
2235
>>> string_to_delta('1w')
1593
>>> string_to_delta(u'1w')
2236
1594
datetime.timedelta(7)
2237
>>> string_to_delta('5m 30s')
1595
>>> string_to_delta(u'5m 30s')
2238
1596
datetime.timedelta(0, 330)
2242
return rfc3339_duration_to_delta(interval)
2246
1598
timevalue = datetime.timedelta(0)
2247
1599
for s in interval.split():
2249
1601
suffix = unicode(s[-1])
2250
1602
value = int(s[:-1])
2252
1604
delta = datetime.timedelta(value)
1605
elif suffix == u"s":
2254
1606
delta = datetime.timedelta(0, value)
1607
elif suffix == u"m":
2256
1608
delta = datetime.timedelta(0, 0, 0, 0, value)
1609
elif suffix == u"h":
2258
1610
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1611
elif suffix == u"w":
2260
1612
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2262
raise ValueError("Unknown suffix {0!r}"
2264
except IndexError as e:
2265
raise ValueError(*(e.args))
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1615
except (ValueError, IndexError), e:
1616
raise ValueError(e.message)
2266
1617
timevalue += delta
2267
1618
return timevalue
1621
def if_nametoindex(interface):
1622
"""Call the C function if_nametoindex(), or equivalent
1624
Note: This function cannot accept a unicode string."""
1625
global if_nametoindex
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1632
def if_nametoindex(interface):
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
with contextlib.closing(socket.socket()) as s:
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1639
interface_index = struct.unpack(str(u"I"),
1641
return interface_index
1642
return if_nametoindex(interface)
2270
1645
def daemon(nochdir = False, noclose = False):
2271
1646
"""See daemon(3). Standard BSD Unix function.
2297
1672
##################################################################
2298
1673
# Parsing of options, both command line and config file
2300
parser = argparse.ArgumentParser()
2301
parser.add_argument("-v", "--version", action="version",
2302
version = "%(prog)s {0}".format(version),
2303
help="show version number and exit")
2304
parser.add_argument("-i", "--interface", metavar="IF",
2305
help="Bind to interface IF")
2306
parser.add_argument("-a", "--address",
2307
help="Address to listen for requests on")
2308
parser.add_argument("-p", "--port", type=int,
2309
help="Port number to receive requests on")
2310
parser.add_argument("--check", action="store_true",
2311
help="Run self-test")
2312
parser.add_argument("--debug", action="store_true",
2313
help="Debug mode; run in foreground and log"
2314
" to terminal", default=None)
2315
parser.add_argument("--debuglevel", metavar="LEVEL",
2316
help="Debug level for stdout output")
2317
parser.add_argument("--priority", help="GnuTLS"
2318
" priority string (see GnuTLS documentation)")
2319
parser.add_argument("--servicename",
2320
metavar="NAME", help="Zeroconf service name")
2321
parser.add_argument("--configdir",
2322
default="/etc/mandos", metavar="DIR",
2323
help="Directory to search for configuration"
2325
parser.add_argument("--no-dbus", action="store_false",
2326
dest="use_dbus", help="Do not provide D-Bus"
2327
" system bus interface", default=None)
2328
parser.add_argument("--no-ipv6", action="store_false",
2329
dest="use_ipv6", help="Do not use IPv6",
2331
parser.add_argument("--no-restore", action="store_false",
2332
dest="restore", help="Do not restore stored"
2333
" state", default=None)
2334
parser.add_argument("--socket", type=int,
2335
help="Specify a file descriptor to a network"
2336
" socket to use instead of creating one")
2337
parser.add_argument("--statedir", metavar="DIR",
2338
help="Directory to save/restore state in")
2339
parser.add_argument("--foreground", action="store_true",
2340
help="Run in foreground", default=None)
2342
options = parser.parse_args()
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", u"--interface", type=u"string",
1677
metavar="IF", help=u"Bind to interface IF")
1678
parser.add_option("-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option("-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option("--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option("--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1687
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1688
help=u"Debug level for stdout output")
1689
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option("--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1697
parser.add_option("--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option("--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1702
options = parser.parse_args()[0]
2344
1704
if options.check:
2402
1748
for option in server_settings.keys():
2403
1749
if type(server_settings[option]) is str:
2404
1750
server_settings[option] = unicode(server_settings[option])
2405
# Force all boolean options to be boolean
2406
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2408
server_settings[option] = bool(server_settings[option])
2409
# Debug implies foreground
2410
if server_settings["debug"]:
2411
server_settings["foreground"] = True
2412
1751
# Now we have our good server settings in "server_settings"
2414
1753
##################################################################
2416
1755
# For convenience
2417
debug = server_settings["debug"]
2418
debuglevel = server_settings["debuglevel"]
2419
use_dbus = server_settings["use_dbus"]
2420
use_ipv6 = server_settings["use_ipv6"]
2421
stored_state_path = os.path.join(server_settings["statedir"],
2423
foreground = server_settings["foreground"]
2426
initlogger(debug, logging.DEBUG)
2431
level = getattr(logging, debuglevel.upper())
2432
initlogger(debug, level)
2434
if server_settings["servicename"] != "Mandos":
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1761
if server_settings[u"servicename"] != u"Mandos":
2435
1762
syslogger.setFormatter(logging.Formatter
2436
('Mandos ({0}) [%(process)d]:'
2437
' %(levelname)s: %(message)s'
2438
.format(server_settings
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
2441
1767
# Parse config file with clients
2442
client_config = configparser.SafeConfigParser(Client
2444
client_config.read(os.path.join(server_settings["configdir"],
1768
client_defaults = { u"timeout": u"1h",
1770
u"checker": u"fping -q -- %%(host)s",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
2447
1779
global mandos_dbus_service
2448
1780
mandos_dbus_service = None
2450
tcp_server = MandosServer((server_settings["address"],
2451
server_settings["port"]),
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
2453
interface=(server_settings["interface"]
1785
interface=(server_settings[u"interface"]
2455
1787
use_ipv6=use_ipv6,
2456
1788
gnutls_priority=
2457
server_settings["priority"],
2459
socketfd=(server_settings["socket"]
2462
pidfilename = "/run/mandos.pid"
2463
if not os.path.isdir("/run/."):
2464
pidfilename = "/var/run/mandos.pid"
1789
server_settings[u"priority"],
1792
pidfilename = u"/var/run/mandos.pid"
2467
pidfile = open(pidfilename, "w")
2468
except IOError as e:
2469
logger.error("Could not open file %r", pidfilename,
1794
pidfile = open(pidfilename, u"w")
1796
logger.error(u"Could not open file %r", pidfilename)
2472
for name in ("_mandos", "mandos", "nobody"):
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
2474
uid = pwd.getpwnam(name).pw_uid
2475
gid = pwd.getpwnam(name).pw_gid
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
2477
1805
except KeyError:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
2485
except OSError as error:
2486
if error.errno != errno.EPERM:
1815
except OSError, error:
1816
if error[0] != errno.EPERM:
1819
if not debug and not debuglevel:
1820
syslogger.setLevel(logging.WARNING)
1821
console.setLevel(logging.WARNING)
1823
level = getattr(logging, debuglevel.upper())
1824
syslogger.setLevel(level)
1825
console.setLevel(level)
2490
1828
# Enable all possible GnuTLS debugging
2496
1834
@gnutls.library.types.gnutls_log_func
2497
1835
def debug_gnutls(level, string):
2498
logger.debug("GnuTLS: %s", string[:-1])
1836
logger.debug(u"GnuTLS: %s", string[:-1])
2500
1838
(gnutls.library.functions
2501
1839
.gnutls_global_set_log_function(debug_gnutls))
2503
1841
# Redirect stdin so all checkers get /dev/null
2504
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1842
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2505
1843
os.dup2(null, sys.stdin.fileno())
2509
# Need to fork before connecting to D-Bus
2511
# Close all input and output, do double fork, etc.
2514
# multiprocessing will use threads, so before we use gobject we
2515
# need to inform gobject that threads will be used.
2516
gobject.threads_init()
1847
# No console logging
1848
logger.removeHandler(console)
2518
1851
global main_loop
2519
1852
# From the Avahi example code
2520
DBusGMainLoop(set_as_default=True)
1853
DBusGMainLoop(set_as_default=True )
2521
1854
main_loop = gobject.MainLoop()
2522
1855
bus = dbus.SystemBus()
2523
1856
# End of Avahi example code
2526
bus_name = dbus.service.BusName("se.recompile.Mandos",
1859
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2527
1860
bus, do_not_queue=True)
2528
old_bus_name = (dbus.service.BusName
2529
("se.bsnet.fukt.Mandos", bus,
2531
except dbus.exceptions.NameExistsException as e:
2532
logger.error("Disabling D-Bus:", exc_info=e)
1861
except dbus.exceptions.NameExistsException, e:
1862
logger.error(unicode(e) + u", disabling D-Bus")
2533
1863
use_dbus = False
2534
server_settings["use_dbus"] = False
1864
server_settings[u"use_dbus"] = False
2535
1865
tcp_server.use_dbus = False
2536
1866
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2537
service = AvahiServiceToSyslog(name =
2538
server_settings["servicename"],
2539
servicetype = "_mandos._tcp",
2540
protocol = protocol, bus = bus)
1867
service = AvahiService(name = server_settings[u"servicename"],
1868
servicetype = u"_mandos._tcp",
1869
protocol = protocol, bus = bus)
2541
1870
if server_settings["interface"]:
2542
1871
service.interface = (if_nametoindex
2543
(str(server_settings["interface"])))
1872
(str(server_settings[u"interface"])))
1875
# Close all input and output, do double fork, etc.
2545
1878
global multiprocessing_manager
2546
1879
multiprocessing_manager = multiprocessing.Manager()
2548
1881
client_class = Client
2550
1883
client_class = functools.partial(ClientDBus, bus = bus)
2552
client_settings = Client.config_parser(client_config)
2553
old_client_settings = {}
2556
# This is used to redirect stdout and stderr for checker processes
2558
wnull = open(os.devnull, "w") # A writable /dev/null
2559
# Only used if server is running in foreground but not in debug
2561
if debug or not foreground:
2564
# Get client data and settings from last running state.
2565
if server_settings["restore"]:
2567
with open(stored_state_path, "rb") as stored_state:
2568
clients_data, old_client_settings = (pickle.load
2570
os.remove(stored_state_path)
2571
except IOError as e:
2572
if e.errno == errno.ENOENT:
2573
logger.warning("Could not load persistent state: {0}"
2574
.format(os.strerror(e.errno)))
2576
logger.critical("Could not load persistent state:",
2579
except EOFError as e:
2580
logger.warning("Could not load persistent state: "
2581
"EOFError:", exc_info=e)
2583
with PGPEngine() as pgp:
2584
for client_name, client in clients_data.iteritems():
2585
# Skip removed clients
2586
if client_name not in client_settings:
2589
# Decide which value to use after restoring saved state.
2590
# We have three different values: Old config file,
2591
# new config file, and saved state.
2592
# New config value takes precedence if it differs from old
2593
# config value, otherwise use saved state.
2594
for name, value in client_settings[client_name].items():
2596
# For each value in new config, check if it
2597
# differs from the old config value (Except for
2598
# the "secret" attribute)
2599
if (name != "secret" and
2600
value != old_client_settings[client_name]
2602
client[name] = value
2606
# Clients who has passed its expire date can still be
2607
# enabled if its last checker was successful. Clients
2608
# whose checker succeeded before we stored its state is
2609
# assumed to have successfully run all checkers during
2611
if client["enabled"]:
2612
if datetime.datetime.utcnow() >= client["expires"]:
2613
if not client["last_checked_ok"]:
2615
"disabling client {0} - Client never "
2616
"performed a successful checker"
2617
.format(client_name))
2618
client["enabled"] = False
2619
elif client["last_checker_status"] != 0:
2621
"disabling client {0} - Client "
2622
"last checker failed with error code {1}"
2623
.format(client_name,
2624
client["last_checker_status"]))
2625
client["enabled"] = False
2627
client["expires"] = (datetime.datetime
2629
+ client["timeout"])
2630
logger.debug("Last checker succeeded,"
2631
" keeping {0} enabled"
2632
.format(client_name))
1884
def client_config_items(config, section):
1885
special_settings = {
1886
"approved_by_default":
1887
lambda: config.getboolean(section,
1888
"approved_by_default"),
1890
for name, value in config.items(section):
2634
client["secret"] = (
2635
pgp.decrypt(client["encrypted_secret"],
2636
client_settings[client_name]
2639
# If decryption fails, we use secret from new settings
2640
logger.debug("Failed to decrypt {0} old secret"
2641
.format(client_name))
2642
client["secret"] = (
2643
client_settings[client_name]["secret"])
2645
# Add/remove clients based on new changes made to config
2646
for client_name in (set(old_client_settings)
2647
- set(client_settings)):
2648
del clients_data[client_name]
2649
for client_name in (set(client_settings)
2650
- set(old_client_settings)):
2651
clients_data[client_name] = client_settings[client_name]
2653
# Create all client objects
2654
for client_name, client in clients_data.iteritems():
2655
tcp_server.clients[client_name] = client_class(
2656
name = client_name, settings = client,
2657
server_settings = server_settings)
1892
yield (name, special_settings[name]())
1896
tcp_server.clients.update(set(
1897
client_class(name = section,
1898
config= dict(client_config_items(
1899
client_config, section)))
1900
for section in client_config.sections()))
2659
1901
if not tcp_server.clients:
2660
logger.warning("No clients defined")
2663
if pidfile is not None:
2667
pidfile.write(str(pid) + "\n".encode("utf-8"))
2669
logger.error("Could not write to file %r with PID %d",
1902
logger.warning(u"No clients defined")
1908
pidfile.write(str(pid) + "\n")
1911
logger.error(u"Could not write to file %r with PID %d",
1914
# "pidfile" was never created
2672
1916
del pidfilename
1918
signal.signal(signal.SIGINT, signal.SIG_IGN)
2674
1920
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2675
1921
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2678
@alternate_dbus_interfaces({"se.recompile.Mandos":
2679
"se.bsnet.fukt.Mandos"})
2680
class MandosDBusService(DBusObjectWithProperties):
1924
class MandosDBusService(dbus.service.Object):
2681
1925
"""A D-Bus proxy object"""
2682
1926
def __init__(self):
2683
dbus.service.Object.__init__(self, bus, "/")
2684
_interface = "se.recompile.Mandos"
2686
@dbus_interface_annotations(_interface)
2688
return { "org.freedesktop.DBus.Property"
2689
".EmitsChangedSignal":
2692
@dbus.service.signal(_interface, signature="o")
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1930
@dbus.service.signal(_interface, signature=u"o")
2693
1931
def ClientAdded(self, objpath):
2697
@dbus.service.signal(_interface, signature="ss")
1935
@dbus.service.signal(_interface, signature=u"ss")
2698
1936
def ClientNotFound(self, fingerprint, address):
2702
@dbus.service.signal(_interface, signature="os")
1940
@dbus.service.signal(_interface, signature=u"os")
2703
1941
def ClientRemoved(self, objpath, name):
2707
@dbus.service.method(_interface, out_signature="ao")
1945
@dbus.service.method(_interface, out_signature=u"ao")
2708
1946
def GetAllClients(self):
2710
1948
return dbus.Array(c.dbus_object_path
2712
tcp_server.clients.itervalues())
1949
for c in tcp_server.clients)
2714
1951
@dbus.service.method(_interface,
2715
out_signature="a{oa{sv}}")
1952
out_signature=u"a{oa{sv}}")
2716
1953
def GetAllClientsWithProperties(self):
2718
1955
return dbus.Dictionary(
2719
((c.dbus_object_path, c.GetAll(""))
2720
for c in tcp_server.clients.itervalues()),
1956
((c.dbus_object_path, c.GetAll(u""))
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
2723
@dbus.service.method(_interface, in_signature="o")
1960
@dbus.service.method(_interface, in_signature=u"o")
2724
1961
def RemoveClient(self, object_path):
2726
for c in tcp_server.clients.itervalues():
1963
for c in tcp_server.clients:
2727
1964
if c.dbus_object_path == object_path:
2728
del tcp_server.clients[c.name]
1965
tcp_server.clients.remove(c)
2729
1966
c.remove_from_connection()
2730
1967
# Don't signal anything except ClientRemoved
2731
1968
c.disable(quiet=True)