151
150
self.group = None # our entry group
152
151
self.server = None
154
self.entry_group_state_changed_match = None
155
153
def rename(self):
156
154
"""Derived from the Avahi example code"""
157
155
if self.rename_count >= self.max_renames:
158
logger.critical("No suitable Zeroconf service name found"
159
" after %i retries, exiting.",
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
160
158
self.rename_count)
161
raise AvahiServiceError("Too many renames")
159
raise AvahiServiceError(u"Too many renames")
162
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
163
logger.info("Changing Zeroconf service name to %r ...",
161
logger.info(u"Changing Zeroconf service name to %r ...",
165
163
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
172
except dbus.exceptions.DBusException as error:
173
logger.critical("DBusException: %s", error)
176
169
self.rename_count += 1
177
170
def remove(self):
178
171
"""Derived from the Avahi example code"""
179
if self.entry_group_state_changed_match is not None:
180
self.entry_group_state_changed_match.remove()
181
self.entry_group_state_changed_match = None
182
172
if self.group is not None:
183
173
self.group.Reset()
185
175
"""Derived from the Avahi example code"""
187
176
if self.group is None:
188
177
self.group = dbus.Interface(
189
178
self.bus.get_object(avahi.DBUS_NAME,
190
179
self.server.EntryGroupNew()),
191
180
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
self.entry_group_state_changed_match = (
193
self.group.connect_to_signal(
194
'StateChanged', self .entry_group_state_changed))
195
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
181
self.group.connect_to_signal('StateChanged',
183
.entry_group_state_changed)
184
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
196
185
self.name, self.type)
197
186
self.group.AddService(
205
194
self.group.Commit()
206
195
def entry_group_state_changed(self, state, error):
207
196
"""Derived from the Avahi example code"""
208
logger.debug("Avahi entry group state change: %i", state)
197
logger.debug(u"Avahi entry group state change: %i", state)
210
199
if state == avahi.ENTRY_GROUP_ESTABLISHED:
211
logger.debug("Zeroconf service established.")
200
logger.debug(u"Zeroconf service established.")
212
201
elif state == avahi.ENTRY_GROUP_COLLISION:
213
logger.info("Zeroconf service name collision.")
202
logger.warning(u"Zeroconf service name collision.")
215
204
elif state == avahi.ENTRY_GROUP_FAILURE:
216
logger.critical("Avahi: Error in group state changed %s",
205
logger.critical(u"Avahi: Error in group state changed %s",
218
raise AvahiGroupError("State changed: %s"
207
raise AvahiGroupError(u"State changed: %s"
219
208
% unicode(error))
220
209
def cleanup(self):
221
210
"""Derived from the Avahi example code"""
222
211
if self.group is not None:
225
except (dbus.exceptions.UnknownMethodException,
226
dbus.exceptions.DBusException) as e:
228
213
self.group = None
230
def server_state_changed(self, state, error=None):
214
def server_state_changed(self, state):
231
215
"""Derived from the Avahi example code"""
232
logger.debug("Avahi server state change: %i", state)
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
240
if state in bad_states:
241
if bad_states[state] is not None:
243
logger.error(bad_states[state])
245
logger.error(bad_states[state] + ": %r", error)
216
logger.debug(u"Avahi server state change: %i", state)
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
247
220
elif state == avahi.SERVER_RUNNING:
251
logger.debug("Unknown state: %r", state)
253
logger.debug("Unknown state: %r: %r", state, error)
254
222
def activate(self):
255
223
"""Derived from the Avahi example code"""
256
224
if self.server is None:
257
225
self.server = dbus.Interface(
258
226
self.bus.get_object(avahi.DBUS_NAME,
259
avahi.DBUS_PATH_SERVER,
260
follow_name_owner_changes=True),
227
avahi.DBUS_PATH_SERVER),
261
228
avahi.DBUS_INTERFACE_SERVER)
262
self.server.connect_to_signal("StateChanged",
229
self.server.connect_to_signal(u"StateChanged",
263
230
self.server_state_changed)
264
231
self.server_state_changed(self.server.GetState())
268
235
"""A representation of a client host served by this server.
271
_approved: bool(); 'None' if not yet approved/disapproved
272
approval_delay: datetime.timedelta(); Time to wait for approval
273
approval_duration: datetime.timedelta(); Duration of one approval
238
name: string; from the config file, used in log messages and
240
fingerprint: string (40 or 32 hexadecimal digits); used to
241
uniquely identify the client
242
secret: bytestring; sent verbatim (over TLS) to client
243
host: string; available for use by the checker command
244
created: datetime.datetime(); (UTC) object creation
245
last_enabled: datetime.datetime(); (UTC)
247
last_checked_ok: datetime.datetime(); (UTC) or None
248
timeout: datetime.timedelta(); How long from last_checked_ok
249
until this client is disabled
250
interval: datetime.timedelta(); How often to start a new checker
251
disable_hook: If set, called by disable() as disable_hook(self)
274
252
checker: subprocess.Popen(); a running checker process used
275
253
to see if the client lives.
276
254
'None' if no process is running.
277
checker_callback_tag: a gobject event source tag, or None
278
checker_command: string; External command which is run to check
279
if client lives. %() expansions are done at
255
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
257
checker_callback_tag: - '' -
258
checker_command: string; External command which is run to check if
259
client lives. %() expansions are done at
280
260
runtime with vars(self) as dict, so that for
281
261
instance %(name)s can be used in the command.
282
checker_initiator_tag: a gobject event source tag, or None
283
created: datetime.datetime(); (UTC) object creation
284
262
current_checker_command: string; current running checker_command
285
disable_hook: If set, called by disable() as disable_hook(self)
286
disable_initiator_tag: a gobject event source tag, or None
288
fingerprint: string (40 or 32 hexadecimal digits); used to
289
uniquely identify the client
290
host: string; available for use by the checker command
291
interval: datetime.timedelta(); How often to start a new checker
292
last_approval_request: datetime.datetime(); (UTC) or None
293
last_checked_ok: datetime.datetime(); (UTC) or None
294
last_enabled: datetime.datetime(); (UTC)
295
name: string; from the config file, used in log messages and
297
secret: bytestring; sent verbatim (over TLS) to client
298
timeout: datetime.timedelta(); How long from last_checked_ok
299
until this client is disabled
300
extended_timeout: extra long timeout when password has been sent
301
runtime_expansions: Allowed attributes for runtime expansion.
302
expires: datetime.datetime(); time (UTC) when a client will be
263
approved_delay: datetime.timedelta(); Time to wait for approval
264
_approved: bool(); 'None' if not yet approved/disapproved
265
approved_duration: datetime.timedelta(); Duration of one approval
306
runtime_expansions = ("approval_delay", "approval_duration",
307
"created", "enabled", "fingerprint",
308
"host", "interval", "last_checked_ok",
309
"last_enabled", "name", "timeout")
312
269
def _timedelta_to_milliseconds(td):
313
270
"Convert a datetime.timedelta() to milliseconds"
338
291
if config is None:
340
logger.debug("Creating client %r", self.name)
293
logger.debug(u"Creating client %r", self.name)
341
294
# Uppercase and remove spaces from fingerprint for later
342
295
# comparison purposes with return value from the fingerprint()
344
self.fingerprint = (config["fingerprint"].upper()
346
logger.debug(" Fingerprint: %s", self.fingerprint)
347
if "secret" in config:
348
self.secret = config["secret"].decode("base64")
349
elif "secfile" in config:
297
self.fingerprint = (config[u"fingerprint"].upper()
299
logger.debug(u" Fingerprint: %s", self.fingerprint)
300
if u"secret" in config:
301
self.secret = config[u"secret"].decode(u"base64")
302
elif u"secfile" in config:
350
303
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
304
(config[u"secfile"])),
352
305
"rb") as secfile:
353
306
self.secret = secfile.read()
355
raise TypeError("No secret or secfile for client %s"
308
raise TypeError(u"No secret or secfile for client %s"
357
self.host = config.get("host", "")
310
self.host = config.get(u"host", u"")
358
311
self.created = datetime.datetime.utcnow()
359
312
self.enabled = False
360
self.last_approval_request = None
361
313
self.last_enabled = None
362
314
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"])
315
self.timeout = string_to_delta(config[u"timeout"])
316
self.interval = string_to_delta(config[u"interval"])
366
317
self.disable_hook = disable_hook
367
318
self.checker = None
368
319
self.checker_initiator_tag = None
369
320
self.disable_initiator_tag = None
371
321
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
322
self.checker_command = config[u"checker"]
373
323
self.current_checker_command = None
374
324
self.last_connect = None
375
325
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
326
self.approved_by_default = config.get(u"approved_by_default",
378
328
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"])
329
self.approved_delay = string_to_delta(
330
config[u"approved_delay"])
331
self.approved_duration = string_to_delta(
332
config[u"approved_duration"])
383
333
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
385
335
def send_changedstate(self):
441
389
if os.WIFEXITED(condition):
442
390
exitstatus = os.WEXITSTATUS(condition)
443
391
if exitstatus == 0:
444
logger.info("Checker for %(name)s succeeded",
392
logger.info(u"Checker for %(name)s succeeded",
446
394
self.checked_ok()
448
logger.info("Checker for %(name)s failed",
396
logger.info(u"Checker for %(name)s failed",
451
logger.warning("Checker for %(name)s crashed?",
399
logger.warning(u"Checker for %(name)s crashed?",
454
def checked_ok(self, timeout=None):
402
def checked_ok(self):
455
403
"""Bump up the timeout for this client.
457
405
This should only be called when the client has been seen,
461
timeout = self.timeout
462
408
self.last_checked_ok = datetime.datetime.utcnow()
463
409
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
465
410
self.disable_initiator_tag = (gobject.timeout_add
466
(self._timedelta_to_milliseconds(timeout),
411
(self.timeout_milliseconds(),
469
def need_approval(self):
470
self.last_approval_request = datetime.datetime.utcnow()
472
414
def start_checker(self):
473
415
"""Start a new checker subprocess if one is not running.
503
445
command = self.checker_command % self.host
504
446
except TypeError:
505
447
# Escape attributes for the shell
506
escaped_attrs = dict(
508
re.escape(unicode(str(getattr(self, attr, "")),
512
self.runtime_expansions)
448
escaped_attrs = dict((key,
449
re.escape(unicode(str(val),
453
vars(self).iteritems())
515
455
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)
456
except TypeError, error:
457
logger.error(u'Could not format string "%s":'
458
u' %s', self.checker_command, error)
519
459
return True # Try again later
520
460
self.current_checker_command = command
522
logger.info("Starting checker %r for %s",
462
logger.info(u"Starting checker %r for %s",
523
463
command, self.name)
524
464
# We don't need to redirect stdout and stderr, since
525
465
# in normal mode, that is already done by daemon(),
549
489
if self.checker_callback_tag:
550
490
gobject.source_remove(self.checker_callback_tag)
551
491
self.checker_callback_tag = None
552
if getattr(self, "checker", None) is None:
492
if getattr(self, u"checker", None) is None:
554
logger.debug("Stopping checker for %(name)s", vars(self))
494
logger.debug(u"Stopping checker for %(name)s", vars(self))
556
496
os.kill(self.checker.pid, signal.SIGTERM)
558
498
#if self.checker.poll() is None:
559
499
# os.kill(self.checker.pid, signal.SIGKILL)
560
except OSError as error:
500
except OSError, error:
561
501
if error.errno != errno.ESRCH: # No such process
563
503
self.checker = None
565
def dbus_service_property(dbus_interface, signature="v",
566
access="readwrite", byte_arrays=False):
505
def dbus_service_property(dbus_interface, signature=u"v",
506
access=u"readwrite", byte_arrays=False):
567
507
"""Decorators for marking methods of a DBusObjectWithProperties to
568
508
become properties on the D-Bus.
647
587
# No such property
648
raise DBusPropertyNotFound(self.dbus_object_path + ":"
649
+ interface_name + "."
588
raise DBusPropertyNotFound(self.dbus_object_path + u":"
589
+ interface_name + u"."
652
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
592
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
654
594
def Get(self, interface_name, property_name):
655
595
"""Standard D-Bus property Get() method, see D-Bus standard.
657
597
prop = self._get_dbus_property(interface_name, property_name)
658
if prop._dbus_access == "write":
598
if prop._dbus_access == u"write":
659
599
raise DBusPropertyAccessException(property_name)
661
if not hasattr(value, "variant_level"):
601
if not hasattr(value, u"variant_level"):
663
603
return type(value)(value, variant_level=value.variant_level+1)
665
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
605
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
666
606
def Set(self, interface_name, property_name, value):
667
607
"""Standard D-Bus property Set() method, see D-Bus standard.
669
609
prop = self._get_dbus_property(interface_name, property_name)
670
if prop._dbus_access == "read":
610
if prop._dbus_access == u"read":
671
611
raise DBusPropertyAccessException(property_name)
672
if prop._dbus_get_args_options["byte_arrays"]:
612
if prop._dbus_get_args_options[u"byte_arrays"]:
673
613
# The byte_arrays option is not supported yet on
674
614
# signatures other than "ay".
675
if prop._dbus_signature != "ay":
615
if prop._dbus_signature != u"ay":
677
617
value = dbus.ByteArray(''.join(unichr(byte)
678
618
for byte in value))
681
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
682
out_signature="a{sv}")
621
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
622
out_signature=u"a{sv}")
683
623
def GetAll(self, interface_name):
684
624
"""Standard D-Bus property GetAll() method, see D-Bus
716
656
document = xml.dom.minidom.parseString(xmlstring)
717
657
def make_tag(document, name, prop):
718
e = document.createElement("property")
719
e.setAttribute("name", name)
720
e.setAttribute("type", prop._dbus_signature)
721
e.setAttribute("access", prop._dbus_access)
658
e = document.createElement(u"property")
659
e.setAttribute(u"name", name)
660
e.setAttribute(u"type", prop._dbus_signature)
661
e.setAttribute(u"access", prop._dbus_access)
723
for if_tag in document.getElementsByTagName("interface"):
663
for if_tag in document.getElementsByTagName(u"interface"):
724
664
for tag in (make_tag(document, name, prop)
726
666
in self._get_all_dbus_properties()
727
667
if prop._dbus_interface
728
== if_tag.getAttribute("name")):
668
== if_tag.getAttribute(u"name")):
729
669
if_tag.appendChild(tag)
730
670
# Add the names to the return values for the
731
671
# "org.freedesktop.DBus.Properties" methods
732
if (if_tag.getAttribute("name")
733
== "org.freedesktop.DBus.Properties"):
734
for cn in if_tag.getElementsByTagName("method"):
735
if cn.getAttribute("name") == "Get":
736
for arg in cn.getElementsByTagName("arg"):
737
if (arg.getAttribute("direction")
739
arg.setAttribute("name", "value")
740
elif cn.getAttribute("name") == "GetAll":
741
for arg in cn.getElementsByTagName("arg"):
742
if (arg.getAttribute("direction")
744
arg.setAttribute("name", "props")
745
xmlstring = document.toxml("utf-8")
672
if (if_tag.getAttribute(u"name")
673
== u"org.freedesktop.DBus.Properties"):
674
for cn in if_tag.getElementsByTagName(u"method"):
675
if cn.getAttribute(u"name") == u"Get":
676
for arg in cn.getElementsByTagName(u"arg"):
677
if (arg.getAttribute(u"direction")
679
arg.setAttribute(u"name", u"value")
680
elif cn.getAttribute(u"name") == u"GetAll":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
684
arg.setAttribute(u"name", u"props")
685
xmlstring = document.toxml(u"utf-8")
746
686
document.unlink()
747
687
except (AttributeError, xml.dom.DOMException,
748
xml.parsers.expat.ExpatError) as error:
749
logger.error("Failed to override Introspection method",
688
xml.parsers.expat.ExpatError), error:
689
logger.error(u"Failed to override Introspection method",
770
706
Client.__init__(self, *args, **kwargs)
771
707
# Only now, when this client is initialized, can it show up on
773
client_object_name = unicode(self.name).translate(
776
709
self.dbus_object_path = (dbus.ObjectPath
777
("/clients/" + client_object_name))
711
+ self.name.replace(u".", u"_")))
778
712
DBusObjectWithProperties.__init__(self, self.bus,
779
713
self.dbus_object_path)
780
def _set_expires(self, value):
781
old_value = getattr(self, "_expires", None)
782
self._expires = value
783
if hasattr(self, "dbus_object_path") and old_value != value:
784
dbus_time = (self._datetime_to_dbus(self._expires,
786
self.PropertyChanged(dbus.String("Expires"),
788
expires = property(lambda self: self._expires, _set_expires)
791
715
def _get_approvals_pending(self):
792
716
return self._approvals_pending
793
717
def _set_approvals_pending(self, value):
808
732
def _datetime_to_dbus(dt, variant_level=0):
809
733
"""Convert a UTC datetime.datetime() to a D-Bus type."""
811
return dbus.String("", variant_level = variant_level)
812
734
return dbus.String(dt.isoformat(),
813
735
variant_level=variant_level)
815
737
def enable(self):
816
oldstate = getattr(self, "enabled", False)
738
oldstate = getattr(self, u"enabled", False)
817
739
r = Client.enable(self)
818
740
if oldstate != self.enabled:
819
741
# Emit D-Bus signals
820
self.PropertyChanged(dbus.String("Enabled"),
742
self.PropertyChanged(dbus.String(u"enabled"),
821
743
dbus.Boolean(True, variant_level=1))
822
744
self.PropertyChanged(
823
dbus.String("LastEnabled"),
745
dbus.String(u"last_enabled"),
824
746
self._datetime_to_dbus(self.last_enabled,
825
747
variant_level=1))
828
750
def disable(self, quiet = False):
829
oldstate = getattr(self, "enabled", False)
751
oldstate = getattr(self, u"enabled", False)
830
752
r = Client.disable(self, quiet=quiet)
831
753
if not quiet and oldstate != self.enabled:
832
754
# Emit D-Bus signal
833
self.PropertyChanged(dbus.String("Enabled"),
755
self.PropertyChanged(dbus.String(u"enabled"),
834
756
dbus.Boolean(False, variant_level=1))
895
809
# Emit D-Bus signal
896
810
self.CheckerStarted(self.current_checker_command)
897
811
self.PropertyChanged(
898
dbus.String("CheckerRunning"),
812
dbus.String(u"checker_running"),
899
813
dbus.Boolean(True, variant_level=1))
902
816
def stop_checker(self, *args, **kwargs):
903
old_checker = getattr(self, "checker", None)
817
old_checker = getattr(self, u"checker", None)
904
818
r = Client.stop_checker(self, *args, **kwargs)
905
819
if (old_checker is not None
906
and getattr(self, "checker", None) is None):
907
self.PropertyChanged(dbus.String("CheckerRunning"),
820
and getattr(self, u"checker", None) is None):
821
self.PropertyChanged(dbus.String(u"checker_running"),
908
822
dbus.Boolean(False, variant_level=1))
915
829
def approve(self, value=True):
916
830
self.send_changedstate()
917
831
self._approved = value
918
gobject.timeout_add(self._timedelta_to_milliseconds
919
(self.approval_duration),
832
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration),
920
833
self._reset_approved)
923
836
## D-Bus methods, signals & properties
924
_interface = "se.bsnet.fukt.Mandos.Client"
837
_interface = u"se.bsnet.fukt.Mandos.Client"
928
841
# CheckerCompleted - signal
929
@dbus.service.signal(_interface, signature="nxs")
842
@dbus.service.signal(_interface, signature=u"nxs")
930
843
def CheckerCompleted(self, exitcode, waitstatus, command):
934
847
# CheckerStarted - signal
935
@dbus.service.signal(_interface, signature="s")
848
@dbus.service.signal(_interface, signature=u"s")
936
849
def CheckerStarted(self, command):
940
853
# PropertyChanged - signal
941
@dbus.service.signal(_interface, signature="sv")
854
@dbus.service.signal(_interface, signature=u"sv")
942
855
def PropertyChanged(self, property, value):
1004
# ApprovalPending - property
1005
@dbus_service_property(_interface, signature="b", access="read")
1006
def ApprovalPending_dbus_property(self):
917
# approved_pending - property
918
@dbus_service_property(_interface, signature=u"b", access=u"read")
919
def approved_pending_dbus_property(self):
1007
920
return dbus.Boolean(bool(self.approvals_pending))
1009
# ApprovedByDefault - property
1010
@dbus_service_property(_interface, signature="b",
1012
def ApprovedByDefault_dbus_property(self, value=None):
1013
if value is None: # get
1014
return dbus.Boolean(self.approved_by_default)
1015
old_value = self.approved_by_default
1016
self.approved_by_default = bool(value)
1018
if old_value != self.approved_by_default:
1019
self.PropertyChanged(dbus.String("ApprovedByDefault"),
1020
dbus.Boolean(value, variant_level=1))
1022
# ApprovalDelay - property
1023
@dbus_service_property(_interface, signature="t",
1025
def ApprovalDelay_dbus_property(self, value=None):
1026
if value is None: # get
1027
return dbus.UInt64(self.approval_delay_milliseconds())
1028
old_value = self.approval_delay
1029
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1031
if old_value != self.approval_delay:
1032
self.PropertyChanged(dbus.String("ApprovalDelay"),
1033
dbus.UInt64(value, variant_level=1))
1035
# ApprovalDuration - property
1036
@dbus_service_property(_interface, signature="t",
1038
def ApprovalDuration_dbus_property(self, value=None):
1039
if value is None: # get
1040
return dbus.UInt64(self._timedelta_to_milliseconds(
1041
self.approval_duration))
1042
old_value = self.approval_duration
1043
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1045
if old_value != self.approval_duration:
1046
self.PropertyChanged(dbus.String("ApprovalDuration"),
1047
dbus.UInt64(value, variant_level=1))
1050
@dbus_service_property(_interface, signature="s", access="read")
1051
def Name_dbus_property(self):
922
# approved_by_default - property
923
@dbus_service_property(_interface, signature=u"b",
925
def approved_by_default_dbus_property(self):
926
return dbus.Boolean(self.approved_by_default)
928
# approved_delay - property
929
@dbus_service_property(_interface, signature=u"t",
931
def approved_delay_dbus_property(self):
932
return dbus.UInt64(self.approved_delay_milliseconds())
934
# approved_duration - property
935
@dbus_service_property(_interface, signature=u"t",
937
def approved_duration_dbus_property(self):
938
return dbus.UInt64(self._timedelta_to_milliseconds(
939
self.approved_duration))
942
@dbus_service_property(_interface, signature=u"s", access=u"read")
943
def name_dbus_property(self):
1052
944
return dbus.String(self.name)
1054
# Fingerprint - property
1055
@dbus_service_property(_interface, signature="s", access="read")
1056
def Fingerprint_dbus_property(self):
946
# fingerprint - property
947
@dbus_service_property(_interface, signature=u"s", access=u"read")
948
def fingerprint_dbus_property(self):
1057
949
return dbus.String(self.fingerprint)
1060
@dbus_service_property(_interface, signature="s",
1062
def Host_dbus_property(self, value=None):
952
@dbus_service_property(_interface, signature=u"s",
954
def host_dbus_property(self, value=None):
1063
955
if value is None: # get
1064
956
return dbus.String(self.host)
1065
old_value = self.host
1066
957
self.host = value
1067
958
# Emit D-Bus signal
1068
if old_value != self.host:
1069
self.PropertyChanged(dbus.String("Host"),
1070
dbus.String(value, variant_level=1))
959
self.PropertyChanged(dbus.String(u"host"),
960
dbus.String(value, variant_level=1))
1072
# Created - property
1073
@dbus_service_property(_interface, signature="s", access="read")
1074
def Created_dbus_property(self):
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
964
def created_dbus_property(self):
1075
965
return dbus.String(self._datetime_to_dbus(self.created))
1077
# LastEnabled - property
1078
@dbus_service_property(_interface, signature="s", access="read")
1079
def LastEnabled_dbus_property(self):
1080
return self._datetime_to_dbus(self.last_enabled)
967
# last_enabled - property
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
969
def last_enabled_dbus_property(self):
970
if self.last_enabled is None:
971
return dbus.String(u"")
972
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1082
# Enabled - property
1083
@dbus_service_property(_interface, signature="b",
1085
def Enabled_dbus_property(self, value=None):
975
@dbus_service_property(_interface, signature=u"b",
977
def enabled_dbus_property(self, value=None):
1086
978
if value is None: # get
1087
979
return dbus.Boolean(self.enabled)
1093
# LastCheckedOK - property
1094
@dbus_service_property(_interface, signature="s",
1096
def LastCheckedOK_dbus_property(self, value=None):
985
# last_checked_ok - property
986
@dbus_service_property(_interface, signature=u"s",
988
def last_checked_ok_dbus_property(self, value=None):
1097
989
if value is not None:
1098
990
self.checked_ok()
1100
return self._datetime_to_dbus(self.last_checked_ok)
1102
# Expires - property
1103
@dbus_service_property(_interface, signature="s", access="read")
1104
def Expires_dbus_property(self):
1105
return self._datetime_to_dbus(self.expires)
1107
# LastApprovalRequest - property
1108
@dbus_service_property(_interface, signature="s", access="read")
1109
def LastApprovalRequest_dbus_property(self):
1110
return self._datetime_to_dbus(self.last_approval_request)
1112
# Timeout - property
1113
@dbus_service_property(_interface, signature="t",
1115
def Timeout_dbus_property(self, value=None):
992
if self.last_checked_ok is None:
993
return dbus.String(u"")
994
return dbus.String(self._datetime_to_dbus(self
998
@dbus_service_property(_interface, signature=u"t",
1000
def timeout_dbus_property(self, value=None):
1116
1001
if value is None: # get
1117
1002
return dbus.UInt64(self.timeout_milliseconds())
1118
old_value = self.timeout
1119
1003
self.timeout = datetime.timedelta(0, 0, 0, value)
1120
1004
# Emit D-Bus signal
1121
if old_value != self.timeout:
1122
self.PropertyChanged(dbus.String("Timeout"),
1123
dbus.UInt64(value, variant_level=1))
1124
if getattr(self, "disable_initiator_tag", None) is None:
1005
self.PropertyChanged(dbus.String(u"timeout"),
1006
dbus.UInt64(value, variant_level=1))
1007
if getattr(self, u"disable_initiator_tag", None) is None:
1126
1009
# Reschedule timeout
1127
1010
gobject.source_remove(self.disable_initiator_tag)
1128
1011
self.disable_initiator_tag = None
1130
1012
time_to_die = (self.
1131
1013
_timedelta_to_milliseconds((self
1132
1014
.last_checked_ok
1137
1019
# The timeout has passed
1140
self.expires = (datetime.datetime.utcnow()
1141
+ datetime.timedelta(milliseconds = time_to_die))
1142
1022
self.disable_initiator_tag = (gobject.timeout_add
1143
1023
(time_to_die, self.disable))
1145
# ExtendedTimeout - property
1146
@dbus_service_property(_interface, signature="t",
1148
def ExtendedTimeout_dbus_property(self, value=None):
1149
if value is None: # get
1150
return dbus.UInt64(self.extended_timeout_milliseconds())
1151
old_value = self.extended_timeout
1152
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1154
if old_value != self.extended_timeout:
1155
self.PropertyChanged(dbus.String("ExtendedTimeout"),
1156
dbus.UInt64(value, variant_level=1))
1158
# Interval - property
1159
@dbus_service_property(_interface, signature="t",
1161
def Interval_dbus_property(self, value=None):
1025
# interval - property
1026
@dbus_service_property(_interface, signature=u"t",
1027
access=u"readwrite")
1028
def interval_dbus_property(self, value=None):
1162
1029
if value is None: # get
1163
1030
return dbus.UInt64(self.interval_milliseconds())
1164
old_value = self.interval
1165
1031
self.interval = datetime.timedelta(0, 0, 0, value)
1166
1032
# Emit D-Bus signal
1167
if old_value != self.interval:
1168
self.PropertyChanged(dbus.String("Interval"),
1169
dbus.UInt64(value, variant_level=1))
1170
if getattr(self, "checker_initiator_tag", None) is None:
1033
self.PropertyChanged(dbus.String(u"interval"),
1034
dbus.UInt64(value, variant_level=1))
1035
if getattr(self, u"checker_initiator_tag", None) is None:
1172
1037
# Reschedule checker run
1173
1038
gobject.source_remove(self.checker_initiator_tag)
1175
1040
(value, self.start_checker))
1176
1041
self.start_checker() # Start one now, too
1178
# Checker - property
1179
@dbus_service_property(_interface, signature="s",
1181
def Checker_dbus_property(self, value=None):
1043
# checker - property
1044
@dbus_service_property(_interface, signature=u"s",
1045
access=u"readwrite")
1046
def checker_dbus_property(self, value=None):
1182
1047
if value is None: # get
1183
1048
return dbus.String(self.checker_command)
1184
old_value = self.checker_command
1185
1049
self.checker_command = value
1186
1050
# Emit D-Bus signal
1187
if old_value != self.checker_command:
1188
self.PropertyChanged(dbus.String("Checker"),
1189
dbus.String(self.checker_command,
1051
self.PropertyChanged(dbus.String(u"checker"),
1052
dbus.String(self.checker_command,
1192
# CheckerRunning - property
1193
@dbus_service_property(_interface, signature="b",
1195
def CheckerRunning_dbus_property(self, value=None):
1055
# checker_running - property
1056
@dbus_service_property(_interface, signature=u"b",
1057
access=u"readwrite")
1058
def checker_running_dbus_property(self, value=None):
1196
1059
if value is None: # get
1197
1060
return dbus.Boolean(self.checker is not None)
1278
1141
# Start communication using the Mandos protocol
1279
1142
# Get protocol number
1280
1143
line = self.request.makefile().readline()
1281
logger.debug("Protocol version: %r", line)
1144
logger.debug(u"Protocol version: %r", line)
1283
1146
if int(line.strip().split()[0]) > 1:
1284
1147
raise RuntimeError
1285
except (ValueError, IndexError, RuntimeError) as error:
1286
logger.error("Unknown protocol version: %s", error)
1148
except (ValueError, IndexError, RuntimeError), error:
1149
logger.error(u"Unknown protocol version: %s", error)
1289
1152
# Start GnuTLS connection
1291
1154
session.handshake()
1292
except gnutls.errors.GNUTLSError as error:
1293
logger.warning("Handshake failed: %s", error)
1155
except gnutls.errors.GNUTLSError, error:
1156
logger.warning(u"Handshake failed: %s", error)
1294
1157
# Do not run session.bye() here: the session is not
1295
1158
# established. Just abandon the request.
1297
logger.debug("Handshake succeeded")
1160
logger.debug(u"Handshake succeeded")
1299
1162
approval_required = False
1302
1165
fpr = self.fingerprint(self.peer_certificate
1305
gnutls.errors.GNUTLSError) as error:
1306
logger.warning("Bad certificate: %s", error)
1167
except (TypeError, gnutls.errors.GNUTLSError), error:
1168
logger.warning(u"Bad certificate: %s", error)
1308
logger.debug("Fingerprint: %s", fpr)
1170
logger.debug(u"Fingerprint: %s", fpr)
1311
1173
client = ProxyClient(child_pipe, fpr,
1313
1175
except KeyError:
1316
if client.approval_delay:
1317
delay = client.approval_delay
1178
if client.approved_delay:
1179
delay = client.approved_delay
1318
1180
client.approvals_pending += 1
1319
1181
approval_required = True
1322
1184
if not client.enabled:
1323
logger.info("Client %s is disabled",
1185
logger.warning(u"Client %s is disabled",
1325
1187
if self.server.use_dbus:
1326
1188
# Emit D-Bus signal
1327
1189
client.Rejected("Disabled")
1330
if client._approved or not client.approval_delay:
1192
if client._approved or not client.approved_delay:
1331
1193
#We are approved or approval is disabled
1333
1195
elif client._approved is None:
1334
logger.info("Client %s needs approval",
1196
logger.info(u"Client %s need approval",
1336
1198
if self.server.use_dbus:
1337
1199
# Emit D-Bus signal
1338
1200
client.NeedApproval(
1339
client.approval_delay_milliseconds(),
1201
client.approved_delay_milliseconds(),
1340
1202
client.approved_by_default)
1342
logger.warning("Client %s was not approved",
1204
logger.warning(u"Client %s was not approved",
1344
1206
if self.server.use_dbus:
1345
1207
# Emit D-Bus signal
1346
client.Rejected("Denied")
1208
client.Rejected("Disapproved")
1349
1211
#wait until timeout or approved
1512
1374
bind to an address or port if they were not specified."""
1513
1375
if self.interface is not None:
1514
1376
if SO_BINDTODEVICE is None:
1515
logger.error("SO_BINDTODEVICE does not exist;"
1516
" cannot bind to interface %s",
1377
logger.error(u"SO_BINDTODEVICE does not exist;"
1378
u" cannot bind to interface %s",
1517
1379
self.interface)
1520
1382
self.socket.setsockopt(socket.SOL_SOCKET,
1521
1383
SO_BINDTODEVICE,
1522
1384
str(self.interface
1524
except socket.error as error:
1386
except socket.error, error:
1525
1387
if error[0] == errno.EPERM:
1526
logger.error("No permission to"
1527
" bind to interface %s",
1388
logger.error(u"No permission to"
1389
u" bind to interface %s",
1528
1390
self.interface)
1529
1391
elif error[0] == errno.ENOPROTOOPT:
1530
logger.error("SO_BINDTODEVICE not available;"
1531
" cannot bind to interface %s",
1392
logger.error(u"SO_BINDTODEVICE not available;"
1393
u" cannot bind to interface %s",
1532
1394
self.interface)
1705
1571
global if_nametoindex
1707
1573
if_nametoindex = (ctypes.cdll.LoadLibrary
1708
(ctypes.util.find_library("c"))
1574
(ctypes.util.find_library(u"c"))
1709
1575
.if_nametoindex)
1710
1576
except (OSError, AttributeError):
1711
logger.warning("Doing if_nametoindex the hard way")
1577
logger.warning(u"Doing if_nametoindex the hard way")
1712
1578
def if_nametoindex(interface):
1713
1579
"Get an interface index the hard way, i.e. using fcntl()"
1714
1580
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1715
1581
with contextlib.closing(socket.socket()) as s:
1716
1582
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1717
struct.pack(str("16s16x"),
1583
struct.pack(str(u"16s16x"),
1719
interface_index = struct.unpack(str("I"),
1585
interface_index = struct.unpack(str(u"I"),
1720
1586
ifreq[16:20])[0]
1721
1587
return interface_index
1722
1588
return if_nametoindex(interface)
1752
1618
##################################################################
1753
1619
# Parsing of options, both command line and config file
1755
parser = argparse.ArgumentParser()
1756
parser.add_argument("-v", "--version", action="version",
1757
version = "%%(prog)s %s" % version,
1758
help="show version number and exit")
1759
parser.add_argument("-i", "--interface", metavar="IF",
1760
help="Bind to interface IF")
1761
parser.add_argument("-a", "--address",
1762
help="Address to listen for requests on")
1763
parser.add_argument("-p", "--port", type=int,
1764
help="Port number to receive requests on")
1765
parser.add_argument("--check", action="store_true",
1766
help="Run self-test")
1767
parser.add_argument("--debug", action="store_true",
1768
help="Debug mode; run in foreground and log"
1770
parser.add_argument("--debuglevel", metavar="LEVEL",
1771
help="Debug level for stdout output")
1772
parser.add_argument("--priority", help="GnuTLS"
1773
" priority string (see GnuTLS documentation)")
1774
parser.add_argument("--servicename",
1775
metavar="NAME", help="Zeroconf service name")
1776
parser.add_argument("--configdir",
1777
default="/etc/mandos", metavar="DIR",
1778
help="Directory to search for configuration"
1780
parser.add_argument("--no-dbus", action="store_false",
1781
dest="use_dbus", help="Do not provide D-Bus"
1782
" system bus interface")
1783
parser.add_argument("--no-ipv6", action="store_false",
1784
dest="use_ipv6", help="Do not use IPv6")
1785
options = parser.parse_args()
1621
parser = optparse.OptionParser(version = "%%prog %s" % version)
1622
parser.add_option("-i", u"--interface", type=u"string",
1623
metavar="IF", help=u"Bind to interface IF")
1624
parser.add_option("-a", u"--address", type=u"string",
1625
help=u"Address to listen for requests on")
1626
parser.add_option("-p", u"--port", type=u"int",
1627
help=u"Port number to receive requests on")
1628
parser.add_option("--check", action=u"store_true",
1629
help=u"Run self-test")
1630
parser.add_option("--debug", action=u"store_true",
1631
help=u"Debug mode; run in foreground and log to"
1633
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1634
help=u"Debug level for stdout output")
1635
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1636
u" priority string (see GnuTLS documentation)")
1637
parser.add_option("--servicename", type=u"string",
1638
metavar=u"NAME", help=u"Zeroconf service name")
1639
parser.add_option("--configdir", type=u"string",
1640
default=u"/etc/mandos", metavar=u"DIR",
1641
help=u"Directory to search for configuration"
1643
parser.add_option("--no-dbus", action=u"store_false",
1644
dest=u"use_dbus", help=u"Do not provide D-Bus"
1645
u" system bus interface")
1646
parser.add_option("--no-ipv6", action=u"store_false",
1647
dest=u"use_ipv6", help=u"Do not use IPv6")
1648
options = parser.parse_args()[0]
1787
1650
if options.check:
1792
1655
# Default values for config file for server-global settings
1793
server_defaults = { "interface": "",
1798
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1799
"servicename": "Mandos",
1656
server_defaults = { u"interface": u"",
1661
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1662
u"servicename": u"Mandos",
1663
u"use_dbus": u"True",
1664
u"use_ipv6": u"True",
1805
1668
# Parse config file for server-global settings
1806
1669
server_config = configparser.SafeConfigParser(server_defaults)
1807
1670
del server_defaults
1808
1671
server_config.read(os.path.join(options.configdir,
1810
1673
# Convert the SafeConfigParser object to a dict
1811
1674
server_settings = server_config.defaults()
1812
1675
# Use the appropriate methods on the non-string config options
1813
for option in ("debug", "use_dbus", "use_ipv6"):
1814
server_settings[option] = server_config.getboolean("DEFAULT",
1676
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1677
server_settings[option] = server_config.getboolean(u"DEFAULT",
1816
1679
if server_settings["port"]:
1817
server_settings["port"] = server_config.getint("DEFAULT",
1680
server_settings["port"] = server_config.getint(u"DEFAULT",
1819
1682
del server_config
1821
1684
# Override the settings from the config file with command line
1822
1685
# options, if set.
1823
for option in ("interface", "address", "port", "debug",
1824
"priority", "servicename", "configdir",
1825
"use_dbus", "use_ipv6", "debuglevel"):
1686
for option in (u"interface", u"address", u"port", u"debug",
1687
u"priority", u"servicename", u"configdir",
1688
u"use_dbus", u"use_ipv6", u"debuglevel"):
1826
1689
value = getattr(options, option)
1827
1690
if value is not None:
1828
1691
server_settings[option] = value
1836
1699
##################################################################
1838
1701
# For convenience
1839
debug = server_settings["debug"]
1840
debuglevel = server_settings["debuglevel"]
1841
use_dbus = server_settings["use_dbus"]
1842
use_ipv6 = server_settings["use_ipv6"]
1702
debug = server_settings[u"debug"]
1703
debuglevel = server_settings[u"debuglevel"]
1704
use_dbus = server_settings[u"use_dbus"]
1705
use_ipv6 = server_settings[u"use_ipv6"]
1844
if server_settings["servicename"] != "Mandos":
1707
if server_settings[u"servicename"] != u"Mandos":
1845
1708
syslogger.setFormatter(logging.Formatter
1846
('Mandos (%s) [%%(process)d]:'
1847
' %%(levelname)s: %%(message)s'
1848
% server_settings["servicename"]))
1709
(u'Mandos (%s) [%%(process)d]:'
1710
u' %%(levelname)s: %%(message)s'
1711
% server_settings[u"servicename"]))
1850
1713
# Parse config file with clients
1851
client_defaults = { "timeout": "5m",
1852
"extended_timeout": "15m",
1854
"checker": "fping -q -- %%(host)s",
1856
"approval_delay": "0s",
1857
"approval_duration": "1s",
1714
client_defaults = { u"timeout": u"1h",
1716
u"checker": u"fping -q -- %%(host)s",
1718
u"approved_delay": u"0s",
1719
u"approved_duration": u"1s",
1859
1721
client_config = configparser.SafeConfigParser(client_defaults)
1860
client_config.read(os.path.join(server_settings["configdir"],
1722
client_config.read(os.path.join(server_settings[u"configdir"],
1863
1725
global mandos_dbus_service
1864
1726
mandos_dbus_service = None
1866
tcp_server = MandosServer((server_settings["address"],
1867
server_settings["port"]),
1728
tcp_server = MandosServer((server_settings[u"address"],
1729
server_settings[u"port"]),
1869
interface=(server_settings["interface"]
1731
interface=server_settings[u"interface"],
1871
1732
use_ipv6=use_ipv6,
1872
1733
gnutls_priority=
1873
server_settings["priority"],
1734
server_settings[u"priority"],
1874
1735
use_dbus=use_dbus)
1876
pidfilename = "/var/run/mandos.pid"
1878
pidfile = open(pidfilename, "w")
1880
logger.error("Could not open file %r", pidfilename)
1736
pidfilename = u"/var/run/mandos.pid"
1738
pidfile = open(pidfilename, u"w")
1740
logger.error(u"Could not open file %r", pidfilename)
1883
uid = pwd.getpwnam("_mandos").pw_uid
1884
gid = pwd.getpwnam("_mandos").pw_gid
1743
uid = pwd.getpwnam(u"_mandos").pw_uid
1744
gid = pwd.getpwnam(u"_mandos").pw_gid
1885
1745
except KeyError:
1887
uid = pwd.getpwnam("mandos").pw_uid
1888
gid = pwd.getpwnam("mandos").pw_gid
1747
uid = pwd.getpwnam(u"mandos").pw_uid
1748
gid = pwd.getpwnam(u"mandos").pw_gid
1889
1749
except KeyError:
1891
uid = pwd.getpwnam("nobody").pw_uid
1892
gid = pwd.getpwnam("nobody").pw_gid
1751
uid = pwd.getpwnam(u"nobody").pw_uid
1752
gid = pwd.getpwnam(u"nobody").pw_gid
1893
1753
except KeyError:
1899
except OSError as error:
1759
except OSError, error:
1900
1760
if error[0] != errno.EPERM:
1763
# Enable all possible GnuTLS debugging
1903
1766
if not debug and not debuglevel:
1904
1767
syslogger.setLevel(logging.WARNING)
1905
1768
console.setLevel(logging.WARNING)
1944
1801
# End of Avahi example code
1947
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1804
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1948
1805
bus, do_not_queue=True)
1949
except dbus.exceptions.NameExistsException as e:
1950
logger.error(unicode(e) + ", disabling D-Bus")
1806
except dbus.exceptions.NameExistsException, e:
1807
logger.error(unicode(e) + u", disabling D-Bus")
1951
1808
use_dbus = False
1952
server_settings["use_dbus"] = False
1809
server_settings[u"use_dbus"] = False
1953
1810
tcp_server.use_dbus = False
1954
1811
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1955
service = AvahiService(name = server_settings["servicename"],
1956
servicetype = "_mandos._tcp",
1812
service = AvahiService(name = server_settings[u"servicename"],
1813
servicetype = u"_mandos._tcp",
1957
1814
protocol = protocol, bus = bus)
1958
1815
if server_settings["interface"]:
1959
1816
service.interface = (if_nametoindex
1960
(str(server_settings["interface"])))
1817
(str(server_settings[u"interface"])))
1820
# Close all input and output, do double fork, etc.
1962
1823
global multiprocessing_manager
1963
1824
multiprocessing_manager = multiprocessing.Manager()
2008
1868
class MandosDBusService(dbus.service.Object):
2009
1869
"""A D-Bus proxy object"""
2010
1870
def __init__(self):
2011
dbus.service.Object.__init__(self, bus, "/")
2012
_interface = "se.bsnet.fukt.Mandos"
1871
dbus.service.Object.__init__(self, bus, u"/")
1872
_interface = u"se.bsnet.fukt.Mandos"
2014
@dbus.service.signal(_interface, signature="o")
1874
@dbus.service.signal(_interface, signature=u"o")
2015
1875
def ClientAdded(self, objpath):
2019
@dbus.service.signal(_interface, signature="ss")
1879
@dbus.service.signal(_interface, signature=u"ss")
2020
1880
def ClientNotFound(self, fingerprint, address):
2024
@dbus.service.signal(_interface, signature="os")
1884
@dbus.service.signal(_interface, signature=u"os")
2025
1885
def ClientRemoved(self, objpath, name):
2029
@dbus.service.method(_interface, out_signature="ao")
1889
@dbus.service.method(_interface, out_signature=u"ao")
2030
1890
def GetAllClients(self):
2032
1892
return dbus.Array(c.dbus_object_path
2033
1893
for c in tcp_server.clients)
2035
1895
@dbus.service.method(_interface,
2036
out_signature="a{oa{sv}}")
1896
out_signature=u"a{oa{sv}}")
2037
1897
def GetAllClientsWithProperties(self):
2039
1899
return dbus.Dictionary(
2040
((c.dbus_object_path, c.GetAll(""))
1900
((c.dbus_object_path, c.GetAll(u""))
2041
1901
for c in tcp_server.clients),
1902
signature=u"oa{sv}")
2044
@dbus.service.method(_interface, in_signature="o")
1904
@dbus.service.method(_interface, in_signature=u"o")
2045
1905
def RemoveClient(self, object_path):
2047
1907
for c in tcp_server.clients: