152
148
self.group = None # our entry group
153
149
self.server = None
155
self.entry_group_state_changed_match = None
156
151
def rename(self):
157
152
"""Derived from the Avahi example code"""
158
153
if self.rename_count >= self.max_renames:
159
logger.critical("No suitable Zeroconf service name found"
160
" after %i retries, exiting.",
154
logger.critical(u"No suitable Zeroconf service name found"
155
u" after %i retries, exiting.",
161
156
self.rename_count)
162
raise AvahiServiceError("Too many renames")
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
165
logger.info("Changing Zeroconf service name to %r ...",
157
raise AvahiServiceError(u"Too many renames")
158
self.name = self.server.GetAlternativeServiceName(self.name)
159
logger.info(u"Changing Zeroconf service name to %r ...",
167
161
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
162
(u'Mandos (%s) [%%(process)d]:'
163
u' %%(levelname)s: %%(message)s'
174
except dbus.exceptions.DBusException as error:
175
logger.critical("DBusException: %s", error)
178
167
self.rename_count += 1
179
168
def remove(self):
180
169
"""Derived from the Avahi example code"""
181
if self.entry_group_state_changed_match is not None:
182
self.entry_group_state_changed_match.remove()
183
self.entry_group_state_changed_match = None
184
170
if self.group is not None:
185
171
self.group.Reset()
187
173
"""Derived from the Avahi example code"""
189
174
if self.group is None:
190
175
self.group = dbus.Interface(
191
176
self.bus.get_object(avahi.DBUS_NAME,
192
177
self.server.EntryGroupNew()),
193
178
avahi.DBUS_INTERFACE_ENTRY_GROUP)
194
self.entry_group_state_changed_match = (
195
self.group.connect_to_signal(
196
'StateChanged', self .entry_group_state_changed))
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
179
self.group.connect_to_signal('StateChanged',
181
.entry_group_state_changed)
182
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
198
183
self.name, self.type)
199
184
self.group.AddService(
207
192
self.group.Commit()
208
193
def entry_group_state_changed(self, state, error):
209
194
"""Derived from the Avahi example code"""
210
logger.debug("Avahi entry group state change: %i", state)
195
logger.debug(u"Avahi state change: %i", state)
212
197
if state == avahi.ENTRY_GROUP_ESTABLISHED:
213
logger.debug("Zeroconf service established.")
198
logger.debug(u"Zeroconf service established.")
214
199
elif state == avahi.ENTRY_GROUP_COLLISION:
215
logger.info("Zeroconf service name collision.")
200
logger.warning(u"Zeroconf service name collision.")
217
202
elif state == avahi.ENTRY_GROUP_FAILURE:
218
logger.critical("Avahi: Error in group state changed %s",
203
logger.critical(u"Avahi: Error in group state changed %s",
220
raise AvahiGroupError("State changed: %s"
205
raise AvahiGroupError(u"State changed: %s"
221
206
% unicode(error))
222
207
def cleanup(self):
223
208
"""Derived from the Avahi example code"""
224
209
if self.group is not None:
227
except (dbus.exceptions.UnknownMethodException,
228
dbus.exceptions.DBusException) as e:
230
211
self.group = None
232
def server_state_changed(self, state, error=None):
212
def server_state_changed(self, state):
233
213
"""Derived from the Avahi example code"""
234
logger.debug("Avahi server state change: %i", state)
235
bad_states = { avahi.SERVER_INVALID:
236
"Zeroconf server invalid",
237
avahi.SERVER_REGISTERING: None,
238
avahi.SERVER_COLLISION:
239
"Zeroconf server name collision",
240
avahi.SERVER_FAILURE:
241
"Zeroconf server failure" }
242
if state in bad_states:
243
if bad_states[state] is not None:
245
logger.error(bad_states[state])
247
logger.error(bad_states[state] + ": %r", error)
214
if state == avahi.SERVER_COLLISION:
215
logger.error(u"Zeroconf server name collision")
249
217
elif state == avahi.SERVER_RUNNING:
253
logger.debug("Unknown state: %r", state)
255
logger.debug("Unknown state: %r: %r", state, error)
256
219
def activate(self):
257
220
"""Derived from the Avahi example code"""
258
221
if self.server is None:
259
222
self.server = dbus.Interface(
260
223
self.bus.get_object(avahi.DBUS_NAME,
261
avahi.DBUS_PATH_SERVER,
262
follow_name_owner_changes=True),
224
avahi.DBUS_PATH_SERVER),
263
225
avahi.DBUS_INTERFACE_SERVER)
264
self.server.connect_to_signal("StateChanged",
226
self.server.connect_to_signal(u"StateChanged",
265
227
self.server_state_changed)
266
228
self.server_state_changed(self.server.GetState())
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
275
231
class Client(object):
276
232
"""A representation of a client host served by this server.
279
_approved: bool(); 'None' if not yet approved/disapproved
280
approval_delay: datetime.timedelta(); Time to wait for approval
281
approval_duration: datetime.timedelta(); Duration of one approval
235
name: string; from the config file, used in log messages and
237
fingerprint: string (40 or 32 hexadecimal digits); used to
238
uniquely identify the client
239
secret: bytestring; sent verbatim (over TLS) to client
240
host: string; available for use by the checker command
241
created: datetime.datetime(); (UTC) object creation
242
last_enabled: datetime.datetime(); (UTC)
244
last_checked_ok: datetime.datetime(); (UTC) or None
245
timeout: datetime.timedelta(); How long from last_checked_ok
246
until this client is disabled
247
interval: datetime.timedelta(); How often to start a new checker
248
disable_hook: If set, called by disable() as disable_hook(self)
282
249
checker: subprocess.Popen(); a running checker process used
283
250
to see if the client lives.
284
251
'None' if no process is running.
285
checker_callback_tag: a gobject event source tag, or None
286
checker_command: string; External command which is run to check
287
if client lives. %() expansions are done at
252
checker_initiator_tag: a gobject event source tag, or None
253
disable_initiator_tag: - '' -
254
checker_callback_tag: - '' -
255
checker_command: string; External command which is run to check if
256
client lives. %() expansions are done at
288
257
runtime with vars(self) as dict, so that for
289
258
instance %(name)s can be used in the command.
290
checker_initiator_tag: a gobject event source tag, or None
291
created: datetime.datetime(); (UTC) object creation
292
259
current_checker_command: string; current running checker_command
293
disable_hook: If set, called by disable() as disable_hook(self)
294
disable_initiator_tag: a gobject event source tag, or None
296
fingerprint: string (40 or 32 hexadecimal digits); used to
297
uniquely identify the client
298
host: string; available for use by the checker command
299
interval: datetime.timedelta(); How often to start a new checker
300
last_approval_request: datetime.datetime(); (UTC) or None
301
last_checked_ok: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
303
name: string; from the config file, used in log messages and
305
secret: bytestring; sent verbatim (over TLS) to client
306
timeout: datetime.timedelta(); How long from last_checked_ok
307
until this client is disabled
308
extended_timeout: extra long timeout when password has been sent
309
runtime_expansions: Allowed attributes for runtime expansion.
310
expires: datetime.datetime(); time (UTC) when a client will be
314
runtime_expansions = ("approval_delay", "approval_duration",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
317
"last_enabled", "name", "timeout")
263
def _timedelta_to_milliseconds(td):
264
"Convert a datetime.timedelta() to milliseconds"
265
return ((td.days * 24 * 60 * 60 * 1000)
266
+ (td.seconds * 1000)
267
+ (td.microseconds // 1000))
319
269
def timeout_milliseconds(self):
320
270
"Return the 'timeout' attribute in milliseconds"
321
return _timedelta_to_milliseconds(self.timeout)
323
def extended_timeout_milliseconds(self):
324
"Return the 'extended_timeout' attribute in milliseconds"
325
return _timedelta_to_milliseconds(self.extended_timeout)
271
return self._timedelta_to_milliseconds(self.timeout)
327
273
def interval_milliseconds(self):
328
274
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
331
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
275
return self._timedelta_to_milliseconds(self.interval)
334
277
def __init__(self, name = None, disable_hook=None, config=None):
335
278
"""Note: the 'checker' key in 'config' sets the
339
282
if config is None:
341
logger.debug("Creating client %r", self.name)
284
logger.debug(u"Creating client %r", self.name)
342
285
# Uppercase and remove spaces from fingerprint for later
343
286
# comparison purposes with return value from the fingerprint()
345
self.fingerprint = (config["fingerprint"].upper()
347
logger.debug(" Fingerprint: %s", self.fingerprint)
348
if "secret" in config:
349
self.secret = config["secret"].decode("base64")
350
elif "secfile" in config:
288
self.fingerprint = (config[u"fingerprint"].upper()
290
logger.debug(u" Fingerprint: %s", self.fingerprint)
291
if u"secret" in config:
292
self.secret = config[u"secret"].decode(u"base64")
293
elif u"secfile" in config:
351
294
with open(os.path.expanduser(os.path.expandvars
352
(config["secfile"])),
295
(config[u"secfile"])),
353
296
"rb") as secfile:
354
297
self.secret = secfile.read()
356
raise TypeError("No secret or secfile for client %s"
299
raise TypeError(u"No secret or secfile for client %s"
358
self.host = config.get("host", "")
301
self.host = config.get(u"host", u"")
359
302
self.created = datetime.datetime.utcnow()
360
303
self.enabled = False
361
self.last_approval_request = None
362
304
self.last_enabled = None
363
305
self.last_checked_ok = None
364
self.timeout = string_to_delta(config["timeout"])
365
self.extended_timeout = string_to_delta(config
366
["extended_timeout"])
367
self.interval = string_to_delta(config["interval"])
306
self.timeout = string_to_delta(config[u"timeout"])
307
self.interval = string_to_delta(config[u"interval"])
368
308
self.disable_hook = disable_hook
369
309
self.checker = None
370
310
self.checker_initiator_tag = None
371
311
self.disable_initiator_tag = None
373
312
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
313
self.checker_command = config[u"checker"]
375
314
self.current_checker_command = None
376
315
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
380
self.approvals_pending = 0
381
self.approval_delay = string_to_delta(
382
config["approval_delay"])
383
self.approval_duration = string_to_delta(
384
config["approval_duration"])
385
self.changedstate = (multiprocessing_manager
386
.Condition(multiprocessing_manager
389
def send_changedstate(self):
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
394
317
def enable(self):
395
318
"""Start this client's checker and timeout hooks"""
396
if getattr(self, "enabled", False):
319
if getattr(self, u"enabled", False):
397
320
# Already enabled
399
self.send_changedstate()
322
self.last_enabled = datetime.datetime.utcnow()
400
323
# Schedule a new checker to be started an 'interval' from now,
401
324
# and every interval from then on.
402
325
self.checker_initiator_tag = (gobject.timeout_add
403
326
(self.interval_milliseconds(),
404
327
self.start_checker))
405
328
# Schedule a disable() when 'timeout' has passed
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
329
self.disable_initiator_tag = (gobject.timeout_add
408
330
(self.timeout_milliseconds(),
410
332
self.enabled = True
411
self.last_enabled = datetime.datetime.utcnow()
412
333
# Also start a new checker *right now*.
413
334
self.start_checker()
445
363
if os.WIFEXITED(condition):
446
364
exitstatus = os.WEXITSTATUS(condition)
447
365
if exitstatus == 0:
448
logger.info("Checker for %(name)s succeeded",
366
logger.info(u"Checker for %(name)s succeeded",
450
368
self.checked_ok()
452
logger.info("Checker for %(name)s failed",
370
logger.info(u"Checker for %(name)s failed",
455
logger.warning("Checker for %(name)s crashed?",
373
logger.warning(u"Checker for %(name)s crashed?",
458
def checked_ok(self, timeout=None):
376
def checked_ok(self):
459
377
"""Bump up the timeout for this client.
461
379
This should only be called when the client has been seen,
465
timeout = self.timeout
466
382
self.last_checked_ok = datetime.datetime.utcnow()
467
if self.disable_initiator_tag is not None:
468
gobject.source_remove(self.disable_initiator_tag)
469
if getattr(self, "enabled", False):
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
473
self.expires = datetime.datetime.utcnow() + timeout
475
def need_approval(self):
476
self.last_approval_request = datetime.datetime.utcnow()
383
gobject.source_remove(self.disable_initiator_tag)
384
self.disable_initiator_tag = (gobject.timeout_add
385
(self.timeout_milliseconds(),
478
388
def start_checker(self):
479
389
"""Start a new checker subprocess if one is not running.
630
538
def _is_dbus_property(obj):
631
return getattr(obj, "_dbus_is_property", False)
539
return getattr(obj, u"_dbus_is_property", False)
633
541
def _get_all_dbus_properties(self):
634
542
"""Returns a generator of (name, attribute) pairs
636
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
637
for cls in self.__class__.__mro__
544
return ((prop._dbus_name, prop)
638
545
for name, prop in
639
inspect.getmembers(cls, self._is_dbus_property))
546
inspect.getmembers(self, self._is_dbus_property))
641
548
def _get_dbus_property(self, interface_name, property_name):
642
549
"""Returns a bound method if one exists which is a D-Bus
643
550
property with the specified name and interface.
645
for cls in self.__class__.__mro__:
646
for name, value in (inspect.getmembers
647
(cls, self._is_dbus_property)):
648
if (value._dbus_name == property_name
649
and value._dbus_interface == interface_name):
650
return value.__get__(self)
552
for name in (property_name,
553
property_name + u"_dbus_property"):
554
prop = getattr(self, name, None)
556
or not self._is_dbus_property(prop)
557
or prop._dbus_name != property_name
558
or (interface_name and prop._dbus_interface
559
and interface_name != prop._dbus_interface)):
652
562
# No such property
653
raise DBusPropertyNotFound(self.dbus_object_path + ":"
654
+ interface_name + "."
563
raise DBusPropertyNotFound(self.dbus_object_path + u":"
564
+ interface_name + u"."
657
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
567
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
659
569
def Get(self, interface_name, property_name):
660
570
"""Standard D-Bus property Get() method, see D-Bus standard.
662
572
prop = self._get_dbus_property(interface_name, property_name)
663
if prop._dbus_access == "write":
573
if prop._dbus_access == u"write":
664
574
raise DBusPropertyAccessException(property_name)
666
if not hasattr(value, "variant_level"):
576
if not hasattr(value, u"variant_level"):
668
578
return type(value)(value, variant_level=value.variant_level+1)
670
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
580
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
671
581
def Set(self, interface_name, property_name, value):
672
582
"""Standard D-Bus property Set() method, see D-Bus standard.
674
584
prop = self._get_dbus_property(interface_name, property_name)
675
if prop._dbus_access == "read":
585
if prop._dbus_access == u"read":
676
586
raise DBusPropertyAccessException(property_name)
677
if prop._dbus_get_args_options["byte_arrays"]:
587
if prop._dbus_get_args_options[u"byte_arrays"]:
678
588
# The byte_arrays option is not supported yet on
679
589
# signatures other than "ay".
680
if prop._dbus_signature != "ay":
590
if prop._dbus_signature != u"ay":
682
592
value = dbus.ByteArray(''.join(unichr(byte)
683
593
for byte in value))
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
687
out_signature="a{sv}")
596
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
597
out_signature=u"a{sv}")
688
598
def GetAll(self, interface_name):
689
599
"""Standard D-Bus property GetAll() method, see D-Bus
692
602
Note: Will not include properties with access="write".
721
631
document = xml.dom.minidom.parseString(xmlstring)
722
632
def make_tag(document, name, prop):
723
e = document.createElement("property")
724
e.setAttribute("name", name)
725
e.setAttribute("type", prop._dbus_signature)
726
e.setAttribute("access", prop._dbus_access)
633
e = document.createElement(u"property")
634
e.setAttribute(u"name", name)
635
e.setAttribute(u"type", prop._dbus_signature)
636
e.setAttribute(u"access", prop._dbus_access)
728
for if_tag in document.getElementsByTagName("interface"):
638
for if_tag in document.getElementsByTagName(u"interface"):
729
639
for tag in (make_tag(document, name, prop)
731
641
in self._get_all_dbus_properties()
732
642
if prop._dbus_interface
733
== if_tag.getAttribute("name")):
643
== if_tag.getAttribute(u"name")):
734
644
if_tag.appendChild(tag)
735
645
# Add the names to the return values for the
736
646
# "org.freedesktop.DBus.Properties" methods
737
if (if_tag.getAttribute("name")
738
== "org.freedesktop.DBus.Properties"):
739
for cn in if_tag.getElementsByTagName("method"):
740
if cn.getAttribute("name") == "Get":
741
for arg in cn.getElementsByTagName("arg"):
742
if (arg.getAttribute("direction")
744
arg.setAttribute("name", "value")
745
elif cn.getAttribute("name") == "GetAll":
746
for arg in cn.getElementsByTagName("arg"):
747
if (arg.getAttribute("direction")
749
arg.setAttribute("name", "props")
750
xmlstring = document.toxml("utf-8")
647
if (if_tag.getAttribute(u"name")
648
== u"org.freedesktop.DBus.Properties"):
649
for cn in if_tag.getElementsByTagName(u"method"):
650
if cn.getAttribute(u"name") == u"Get":
651
for arg in cn.getElementsByTagName(u"arg"):
652
if (arg.getAttribute(u"direction")
654
arg.setAttribute(u"name", u"value")
655
elif cn.getAttribute(u"name") == u"GetAll":
656
for arg in cn.getElementsByTagName(u"arg"):
657
if (arg.getAttribute(u"direction")
659
arg.setAttribute(u"name", u"props")
660
xmlstring = document.toxml(u"utf-8")
751
661
document.unlink()
752
662
except (AttributeError, xml.dom.DOMException,
753
xml.parsers.expat.ExpatError) as error:
754
logger.error("Failed to override Introspection method",
663
xml.parsers.expat.ExpatError), error:
664
logger.error(u"Failed to override Introspection method",
759
def datetime_to_dbus (dt, variant_level=0):
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
762
return dbus.String("", variant_level = variant_level)
763
return dbus.String(dt.isoformat(),
764
variant_level=variant_level)
766
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
768
"""Applied to an empty subclass of a D-Bus object, this metaclass
769
will add additional D-Bus attributes matching a certain pattern.
771
def __new__(mcs, name, bases, attr):
772
# Go through all the base classes which could have D-Bus
773
# methods, signals, or properties in them
774
for base in (b for b in bases
775
if issubclass(b, dbus.service.Object)):
776
# Go though all attributes of the base class
777
for attrname, attribute in inspect.getmembers(base):
778
# Ignore non-D-Bus attributes, and D-Bus attributes
779
# with the wrong interface name
780
if (not hasattr(attribute, "_dbus_interface")
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
784
# Create an alternate D-Bus interface name based on
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
789
# Is this a D-Bus signal?
790
if getattr(attribute, "_dbus_is_signal", False):
791
# Extract the original non-method function by
793
nonmethod_func = (dict(
794
zip(attribute.func_code.co_freevars,
795
attribute.__closure__))["func"]
797
# Create a new, but exactly alike, function
798
# object, and decorate it to be a new D-Bus signal
799
# with the alternate D-Bus interface name
800
new_function = (dbus.service.signal
802
attribute._dbus_signature)
804
nonmethod_func.func_code,
805
nonmethod_func.func_globals,
806
nonmethod_func.func_name,
807
nonmethod_func.func_defaults,
808
nonmethod_func.func_closure)))
809
# Define a creator of a function to call both the
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
812
def fixscope(func1, func2):
813
"""This function is a scope container to pass
814
func1 and func2 to the "call_both" function
815
outside of its arguments"""
816
def call_both(*args, **kwargs):
817
"""This function will emit two D-Bus
818
signals by calling func1 and func2"""
819
func1(*args, **kwargs)
820
func2(*args, **kwargs)
822
# Create the "call_both" function and add it to
824
attr[attrname] = fixscope(attribute,
826
# Is this a D-Bus method?
827
elif getattr(attribute, "_dbus_is_method", False):
828
# Create a new, but exactly alike, function
829
# object. Decorate it to be a new D-Bus method
830
# with the alternate D-Bus interface name. Add it
832
attr[attrname] = (dbus.service.method
834
attribute._dbus_in_signature,
835
attribute._dbus_out_signature)
837
(attribute.func_code,
838
attribute.func_globals,
840
attribute.func_defaults,
841
attribute.func_closure)))
842
# Is this a D-Bus property?
843
elif getattr(attribute, "_dbus_is_property", False):
844
# Create a new, but exactly alike, function
845
# object, and decorate it to be a new D-Bus
846
# property with the alternate D-Bus interface
847
# name. Add it to the class.
848
attr[attrname] = (dbus_service_property
850
attribute._dbus_signature,
851
attribute._dbus_access,
853
._dbus_get_args_options
856
(attribute.func_code,
857
attribute.func_globals,
859
attribute.func_defaults,
860
attribute.func_closure)))
861
return type.__new__(mcs, name, bases, attr)
863
669
class ClientDBus(Client, DBusObjectWithProperties):
864
670
"""A Client class using D-Bus
867
673
dbus_object_path: dbus.ObjectPath
868
674
bus: dbus.SystemBus()
871
runtime_expansions = (Client.runtime_expansions
872
+ ("dbus_object_path",))
874
676
# dbus.service.Object doesn't use super(), so we can't either.
876
678
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
879
680
Client.__init__(self, *args, **kwargs)
880
681
# Only now, when this client is initialized, can it show up on
882
client_object_name = unicode(self.name).translate(
885
683
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
685
+ self.name.replace(u".", u"_")))
887
686
DBusObjectWithProperties.__init__(self, self.bus,
888
687
self.dbus_object_path)
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
893
""" Modify a variable so that it's a property which announces
896
transform_fun: Function that takes a value and a variant_level
897
and transforms it to a D-Bus type.
898
dbus_name: D-Bus name of the variable
899
type_func: Function that transform the value before sending it
900
to the D-Bus. Default: no transform
901
variant_level: D-Bus variant level. Default: 1
903
attrname = "_{0}".format(dbus_name)
904
def setter(self, value):
905
if hasattr(self, "dbus_object_path"):
906
if (not hasattr(self, attrname) or
907
type_func(getattr(self, attrname, None))
908
!= type_func(value)):
909
dbus_value = transform_func(type_func(value),
912
self.PropertyChanged(dbus.String(dbus_name),
914
setattr(self, attrname, value)
916
return property(lambda self: getattr(self, attrname), setter)
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
920
approvals_pending = notifychangeproperty(dbus.Boolean,
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
924
last_enabled = notifychangeproperty(datetime_to_dbus,
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
931
last_approval_request = notifychangeproperty(
932
datetime_to_dbus, "LastApprovalRequest")
933
approved_by_default = notifychangeproperty(dbus.Boolean,
935
approval_delay = notifychangeproperty(dbus.UInt16,
938
_timedelta_to_milliseconds)
939
approval_duration = notifychangeproperty(
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
942
host = notifychangeproperty(dbus.String, "Host")
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
945
_timedelta_to_milliseconds)
946
extended_timeout = notifychangeproperty(
947
dbus.UInt16, "ExtendedTimeout",
948
type_func = _timedelta_to_milliseconds)
949
interval = notifychangeproperty(dbus.UInt16,
952
_timedelta_to_milliseconds)
953
checker_command = notifychangeproperty(dbus.String, "Checker")
955
del notifychangeproperty
690
def _datetime_to_dbus(dt, variant_level=0):
691
"""Convert a UTC datetime.datetime() to a D-Bus type."""
692
return dbus.String(dt.isoformat(),
693
variant_level=variant_level)
696
oldstate = getattr(self, u"enabled", False)
697
r = Client.enable(self)
698
if oldstate != self.enabled:
700
self.PropertyChanged(dbus.String(u"enabled"),
701
dbus.Boolean(True, variant_level=1))
702
self.PropertyChanged(
703
dbus.String(u"last_enabled"),
704
self._datetime_to_dbus(self.last_enabled,
708
def disable(self, quiet = False):
709
oldstate = getattr(self, u"enabled", False)
710
r = Client.disable(self, quiet=quiet)
711
if not quiet and oldstate != self.enabled:
713
self.PropertyChanged(dbus.String(u"enabled"),
714
dbus.Boolean(False, variant_level=1))
957
717
def __del__(self, *args, **kwargs):
959
719
self.remove_from_connection()
960
720
except LookupError:
962
if hasattr(DBusObjectWithProperties, "__del__"):
722
if hasattr(DBusObjectWithProperties, u"__del__"):
963
723
DBusObjectWithProperties.__del__(self, *args, **kwargs)
964
724
Client.__del__(self, *args, **kwargs)
994
766
and old_checker_pid != self.checker.pid):
995
767
# Emit D-Bus signal
996
768
self.CheckerStarted(self.current_checker_command)
999
def _reset_approved(self):
1000
self._approved = None
1003
def approve(self, value=True):
1004
self.send_changedstate()
1005
self._approved = value
1006
gobject.timeout_add(_timedelta_to_milliseconds
1007
(self.approval_duration),
1008
self._reset_approved)
1011
## D-Bus methods, signals & properties
1012
_interface = "se.recompile.Mandos.Client"
769
self.PropertyChanged(
770
dbus.String(u"checker_running"),
771
dbus.Boolean(True, variant_level=1))
774
def stop_checker(self, *args, **kwargs):
775
old_checker = getattr(self, u"checker", None)
776
r = Client.stop_checker(self, *args, **kwargs)
777
if (old_checker is not None
778
and getattr(self, u"checker", None) is None):
779
self.PropertyChanged(dbus.String(u"checker_running"),
780
dbus.Boolean(False, variant_level=1))
783
## D-Bus methods & signals
784
_interface = u"se.bsnet.fukt.Mandos.Client"
787
@dbus.service.method(_interface)
789
return self.checked_ok()
1016
791
# CheckerCompleted - signal
1017
@dbus.service.signal(_interface, signature="nxs")
792
@dbus.service.signal(_interface, signature=u"nxs")
1018
793
def CheckerCompleted(self, exitcode, waitstatus, command):
1022
797
# CheckerStarted - signal
1023
@dbus.service.signal(_interface, signature="s")
798
@dbus.service.signal(_interface, signature=u"s")
1024
799
def CheckerStarted(self, command):
1028
803
# PropertyChanged - signal
1029
@dbus.service.signal(_interface, signature="sv")
804
@dbus.service.signal(_interface, signature=u"sv")
1030
805
def PropertyChanged(self, property, value):
1087
841
def StopChecker(self):
1088
842
self.stop_checker()
1092
# ApprovalPending - property
1093
@dbus_service_property(_interface, signature="b", access="read")
1094
def ApprovalPending_dbus_property(self):
1095
return dbus.Boolean(bool(self.approvals_pending))
1097
# ApprovedByDefault - property
1098
@dbus_service_property(_interface, signature="b",
1100
def ApprovedByDefault_dbus_property(self, value=None):
1101
if value is None: # get
1102
return dbus.Boolean(self.approved_by_default)
1103
self.approved_by_default = bool(value)
1105
# ApprovalDelay - property
1106
@dbus_service_property(_interface, signature="t",
1108
def ApprovalDelay_dbus_property(self, value=None):
1109
if value is None: # get
1110
return dbus.UInt64(self.approval_delay_milliseconds())
1111
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1113
# ApprovalDuration - property
1114
@dbus_service_property(_interface, signature="t",
1116
def ApprovalDuration_dbus_property(self, value=None):
1117
if value is None: # get
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
1120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1123
@dbus_service_property(_interface, signature="s", access="read")
1124
def Name_dbus_property(self):
845
@dbus_service_property(_interface, signature=u"s", access=u"read")
846
def name_dbus_property(self):
1125
847
return dbus.String(self.name)
1127
# Fingerprint - property
1128
@dbus_service_property(_interface, signature="s", access="read")
1129
def Fingerprint_dbus_property(self):
849
# fingerprint - property
850
@dbus_service_property(_interface, signature=u"s", access=u"read")
851
def fingerprint_dbus_property(self):
1130
852
return dbus.String(self.fingerprint)
1133
@dbus_service_property(_interface, signature="s",
1135
def Host_dbus_property(self, value=None):
855
@dbus_service_property(_interface, signature=u"s",
857
def host_dbus_property(self, value=None):
1136
858
if value is None: # get
1137
859
return dbus.String(self.host)
1138
860
self.host = value
1140
# Created - property
1141
@dbus_service_property(_interface, signature="s", access="read")
1142
def Created_dbus_property(self):
1143
return dbus.String(datetime_to_dbus(self.created))
1145
# LastEnabled - property
1146
@dbus_service_property(_interface, signature="s", access="read")
1147
def LastEnabled_dbus_property(self):
1148
return datetime_to_dbus(self.last_enabled)
1150
# Enabled - property
1151
@dbus_service_property(_interface, signature="b",
1153
def Enabled_dbus_property(self, value=None):
862
self.PropertyChanged(dbus.String(u"host"),
863
dbus.String(value, variant_level=1))
866
@dbus_service_property(_interface, signature=u"s", access=u"read")
867
def created_dbus_property(self):
868
return dbus.String(self._datetime_to_dbus(self.created))
870
# last_enabled - property
871
@dbus_service_property(_interface, signature=u"s", access=u"read")
872
def last_enabled_dbus_property(self):
873
if self.last_enabled is None:
874
return dbus.String(u"")
875
return dbus.String(self._datetime_to_dbus(self.last_enabled))
878
@dbus_service_property(_interface, signature=u"b",
880
def enabled_dbus_property(self, value=None):
1154
881
if value is None: # get
1155
882
return dbus.Boolean(self.enabled)
1161
# LastCheckedOK - property
1162
@dbus_service_property(_interface, signature="s",
1164
def LastCheckedOK_dbus_property(self, value=None):
888
# last_checked_ok - property
889
@dbus_service_property(_interface, signature=u"s",
891
def last_checked_ok_dbus_property(self, value=None):
1165
892
if value is not None:
1166
893
self.checked_ok()
1168
return datetime_to_dbus(self.last_checked_ok)
1170
# Expires - property
1171
@dbus_service_property(_interface, signature="s", access="read")
1172
def Expires_dbus_property(self):
1173
return datetime_to_dbus(self.expires)
1175
# LastApprovalRequest - property
1176
@dbus_service_property(_interface, signature="s", access="read")
1177
def LastApprovalRequest_dbus_property(self):
1178
return datetime_to_dbus(self.last_approval_request)
1180
# Timeout - property
1181
@dbus_service_property(_interface, signature="t",
1183
def Timeout_dbus_property(self, value=None):
895
if self.last_checked_ok is None:
896
return dbus.String(u"")
897
return dbus.String(self._datetime_to_dbus(self
901
@dbus_service_property(_interface, signature=u"t",
903
def timeout_dbus_property(self, value=None):
1184
904
if value is None: # get
1185
905
return dbus.UInt64(self.timeout_milliseconds())
1186
906
self.timeout = datetime.timedelta(0, 0, 0, value)
1187
if getattr(self, "disable_initiator_tag", None) is None:
908
self.PropertyChanged(dbus.String(u"timeout"),
909
dbus.UInt64(value, variant_level=1))
910
if getattr(self, u"disable_initiator_tag", None) is None:
1189
912
# Reschedule timeout
1190
913
gobject.source_remove(self.disable_initiator_tag)
1191
914
self.disable_initiator_tag = None
1193
time_to_die = _timedelta_to_milliseconds((self
916
_timedelta_to_milliseconds((self
1198
921
if time_to_die <= 0:
1199
922
# The timeout has passed
1202
self.expires = (datetime.datetime.utcnow()
1203
+ datetime.timedelta(milliseconds =
1205
925
self.disable_initiator_tag = (gobject.timeout_add
1206
926
(time_to_die, self.disable))
1208
# ExtendedTimeout - property
1209
@dbus_service_property(_interface, signature="t",
1211
def ExtendedTimeout_dbus_property(self, value=None):
1212
if value is None: # get
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
1214
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1216
# Interval - property
1217
@dbus_service_property(_interface, signature="t",
1219
def Interval_dbus_property(self, value=None):
928
# interval - property
929
@dbus_service_property(_interface, signature=u"t",
931
def interval_dbus_property(self, value=None):
1220
932
if value is None: # get
1221
933
return dbus.UInt64(self.interval_milliseconds())
1222
934
self.interval = datetime.timedelta(0, 0, 0, value)
1223
if getattr(self, "checker_initiator_tag", None) is None:
936
self.PropertyChanged(dbus.String(u"interval"),
937
dbus.UInt64(value, variant_level=1))
938
if getattr(self, u"checker_initiator_tag", None) is None:
1225
940
# Reschedule checker run
1226
941
gobject.source_remove(self.checker_initiator_tag)
1227
942
self.checker_initiator_tag = (gobject.timeout_add
1228
943
(value, self.start_checker))
1229
944
self.start_checker() # Start one now, too
1231
# Checker - property
1232
@dbus_service_property(_interface, signature="s",
1234
def Checker_dbus_property(self, value=None):
947
@dbus_service_property(_interface, signature=u"s",
949
def checker_dbus_property(self, value=None):
1235
950
if value is None: # get
1236
951
return dbus.String(self.checker_command)
1237
952
self.checker_command = value
954
self.PropertyChanged(dbus.String(u"checker"),
955
dbus.String(self.checker_command,
1239
# CheckerRunning - property
1240
@dbus_service_property(_interface, signature="b",
1242
def CheckerRunning_dbus_property(self, value=None):
958
# checker_running - property
959
@dbus_service_property(_interface, signature=u"b",
961
def checker_running_dbus_property(self, value=None):
1243
962
if value is None: # get
1244
963
return dbus.Boolean(self.checker is not None)
1248
967
self.stop_checker()
1250
# ObjectPath - property
1251
@dbus_service_property(_interface, signature="o", access="read")
1252
def ObjectPath_dbus_property(self):
969
# object_path - property
970
@dbus_service_property(_interface, signature=u"o", access=u"read")
971
def object_path_dbus_property(self):
1253
972
return self.dbus_object_path # is already a dbus.ObjectPath
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
1258
def Secret_dbus_property(self, value):
975
@dbus_service_property(_interface, signature=u"ay",
976
access=u"write", byte_arrays=True)
977
def secret_dbus_property(self, value):
1259
978
self.secret = str(value)
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
1266
self._pipe = child_pipe
1267
self._pipe.send(('init', fpr, address))
1268
if not self._pipe.recv():
1271
def __getattribute__(self, name):
1272
if(name == '_pipe'):
1273
return super(ProxyClient, self).__getattribute__(name)
1274
self._pipe.send(('getattr', name))
1275
data = self._pipe.recv()
1276
if data[0] == 'data':
1278
if data[0] == 'function':
1279
def func(*args, **kwargs):
1280
self._pipe.send(('funcall', name, args, kwargs))
1281
return self._pipe.recv()[1]
1284
def __setattr__(self, name, value):
1285
if(name == '_pipe'):
1286
return super(ProxyClient, self).__setattr__(name, value)
1287
self._pipe.send(('setattr', name, value))
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
1292
983
class ClientHandler(socketserver.BaseRequestHandler, object):
1293
984
"""A class to handle client connections.
1296
987
Note: This will run in its own forked process."""
1298
989
def handle(self):
1299
with contextlib.closing(self.server.child_pipe) as child_pipe:
1300
logger.info("TCP connection from: %s",
1301
unicode(self.client_address))
1302
logger.debug("Pipe FD: %d",
1303
self.server.child_pipe.fileno())
990
logger.info(u"TCP connection from: %s",
991
unicode(self.client_address))
992
logger.debug(u"IPC Pipe FD: %d", self.server.child_pipe[1])
993
# Open IPC pipe to parent process
994
with contextlib.nested(os.fdopen(self.server.child_pipe[1],
996
os.fdopen(self.server.parent_pipe[0],
1305
999
session = (gnutls.connection
1306
1000
.ClientSession(self.request,
1307
1001
gnutls.connection
1308
1002
.X509Credentials()))
1004
line = self.request.makefile().readline()
1005
logger.debug(u"Protocol version: %r", line)
1007
if int(line.strip().split()[0]) > 1:
1009
except (ValueError, IndexError, RuntimeError), error:
1010
logger.error(u"Unknown protocol version: %s", error)
1310
1013
# Note: gnutls.connection.X509Credentials is really a
1311
1014
# generic GnuTLS certificate credentials object so long as
1312
1015
# no X.509 keys are added to it. Therefore, we can use it
1313
1016
# here despite using OpenPGP certificates.
1315
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1316
# "+AES-256-CBC", "+SHA1",
1317
# "+COMP-NULL", "+CTYPE-OPENPGP",
1018
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1019
# u"+AES-256-CBC", u"+SHA1",
1020
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1319
1022
# Use a fallback default, since this MUST be set.
1320
1023
priority = self.server.gnutls_priority
1321
1024
if priority is None:
1025
priority = u"NORMAL"
1323
1026
(gnutls.library.functions
1324
1027
.gnutls_priority_set_direct(session._c_object,
1325
1028
priority, None))
1327
# Start communication using the Mandos protocol
1328
# Get protocol number
1329
line = self.request.makefile().readline()
1330
logger.debug("Protocol version: %r", line)
1332
if int(line.strip().split()[0]) > 1:
1334
except (ValueError, IndexError, RuntimeError) as error:
1335
logger.error("Unknown protocol version: %s", error)
1338
# Start GnuTLS connection
1340
1031
session.handshake()
1341
except gnutls.errors.GNUTLSError as error:
1342
logger.warning("Handshake failed: %s", error)
1032
except gnutls.errors.GNUTLSError, error:
1033
logger.warning(u"Handshake failed: %s", error)
1343
1034
# Do not run session.bye() here: the session is not
1344
1035
# established. Just abandon the request.
1346
logger.debug("Handshake succeeded")
1348
approval_required = False
1037
logger.debug(u"Handshake succeeded")
1351
1040
fpr = self.fingerprint(self.peer_certificate
1354
gnutls.errors.GNUTLSError) as error:
1355
logger.warning("Bad certificate: %s", error)
1357
logger.debug("Fingerprint: %s", fpr)
1360
client = ProxyClient(child_pipe, fpr,
1361
self.client_address)
1365
if client.approval_delay:
1366
delay = client.approval_delay
1367
client.approvals_pending += 1
1368
approval_required = True
1371
if not client.enabled:
1372
logger.info("Client %s is disabled",
1374
if self.server.use_dbus:
1376
client.Rejected("Disabled")
1379
if client._approved or not client.approval_delay:
1380
#We are approved or approval is disabled
1042
except (TypeError, gnutls.errors.GNUTLSError), error:
1043
logger.warning(u"Bad certificate: %s", error)
1045
logger.debug(u"Fingerprint: %s", fpr)
1047
for c in self.server.clients:
1048
if c.fingerprint == fpr:
1382
elif client._approved is None:
1383
logger.info("Client %s needs approval",
1385
if self.server.use_dbus:
1387
client.NeedApproval(
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
1391
logger.warning("Client %s was not approved",
1393
if self.server.use_dbus:
1395
client.Rejected("Denied")
1398
#wait until timeout or approved
1399
time = datetime.datetime.now()
1400
client.changedstate.acquire()
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1404
client.changedstate.release()
1405
time2 = datetime.datetime.now()
1406
if (time2 - time) >= delay:
1407
if not client.approved_by_default:
1408
logger.warning("Client %s timed out while"
1409
" waiting for approval",
1411
if self.server.use_dbus:
1413
client.Rejected("Approval timed out")
1418
delay -= time2 - time
1052
ipc.write(u"NOTFOUND %s %s\n"
1053
% (fpr, unicode(self.client_address)))
1055
# Have to check if client.enabled, since it is
1056
# possible that the client was disabled since the
1057
# GnuTLS session was established.
1058
ipc.write(u"GETATTR enabled %s\n" % fpr)
1059
enabled = pickle.load(ipc_return)
1061
ipc.write(u"DISABLED %s\n" % client.name)
1063
ipc.write(u"SENDING %s\n" % client.name)
1421
1065
while sent_size < len(client.secret):
1423
sent = session.send(client.secret[sent_size:])
1424
except gnutls.errors.GNUTLSError as error:
1425
logger.warning("gnutls send failed")
1427
logger.debug("Sent: %d, remaining: %d",
1066
sent = session.send(client.secret[sent_size:])
1067
logger.debug(u"Sent: %d, remaining: %d",
1428
1068
sent, len(client.secret)
1429
1069
- (sent_size + sent))
1430
1070
sent_size += sent
1432
logger.info("Sending secret to %s", client.name)
1433
# bump the timeout using extended_timeout
1434
client.checked_ok(client.extended_timeout)
1435
if self.server.use_dbus:
1440
if approval_required:
1441
client.approvals_pending -= 1
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1448
1075
def peer_certificate(session):
1504
1131
# Convert the buffer to a Python bytestring
1505
1132
fpr = ctypes.string_at(buf, buf_len.value)
1506
1133
# Convert the bytestring to hexadecimal notation
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1134
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1511
class MultiprocessingMixIn(object):
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1513
def sub_process_main(self, request, address):
1515
self.finish_request(request, address)
1517
self.handle_error(request, address)
1518
self.close_request(request)
1520
def process_request(self, request, address):
1521
"""Start a new process to process the request."""
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1530
""" adds a pipe to the MixIn """
1138
class ForkingMixInWithPipes(socketserver.ForkingMixIn, object):
1139
"""Like socketserver.ForkingMixIn, but also pass a pipe pair."""
1531
1140
def process_request(self, request, client_address):
1532
1141
"""Overrides and wraps the original process_request().
1534
1143
This function creates a new pipe in self.pipe
1536
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1538
proc = MultiprocessingMixIn.process_request(self, request,
1540
self.child_pipe.close()
1541
self.add_pipe(parent_pipe, proc)
1543
def add_pipe(self, parent_pipe, proc):
1145
self.child_pipe = os.pipe() # Child writes here
1146
self.parent_pipe = os.pipe() # Parent writes here
1147
super(ForkingMixInWithPipes,
1148
self).process_request(request, client_address)
1149
# Close unused ends for parent
1150
os.close(self.parent_pipe[0]) # close read end
1151
os.close(self.child_pipe[1]) # close write end
1152
self.add_pipe_fds(self.child_pipe[0], self.parent_pipe[1])
1153
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
1544
1154
"""Dummy function; override as necessary"""
1545
raise NotImplementedError
1548
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1155
os.close(child_pipe_fd)
1156
os.close(parent_pipe_fd)
1159
class IPv6_TCPServer(ForkingMixInWithPipes,
1549
1160
socketserver.TCPServer, object):
1550
1161
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1634
1245
def server_activate(self):
1635
1246
if self.enabled:
1636
1247
return socketserver.TCPServer.server_activate(self)
1638
1248
def enable(self):
1639
1249
self.enabled = True
1641
def add_pipe(self, parent_pipe, proc):
1250
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
1642
1251
# Call "handle_ipc" for both data and EOF events
1643
gobject.io_add_watch(parent_pipe.fileno(),
1252
gobject.io_add_watch(child_pipe_fd,
1644
1253
gobject.IO_IN | gobject.IO_HUP,
1645
1254
functools.partial(self.handle_ipc,
1650
def handle_ipc(self, source, condition, parent_pipe=None,
1651
proc = None, client_object=None):
1257
def handle_ipc(self, source, condition, reply_fd=None,
1652
1259
condition_names = {
1653
gobject.IO_IN: "IN", # There is data to read.
1654
gobject.IO_OUT: "OUT", # Data can be written (without
1260
gobject.IO_IN: u"IN", # There is data to read.
1261
gobject.IO_OUT: u"OUT", # Data can be written (without
1656
gobject.IO_PRI: "PRI", # There is urgent data to read.
1657
gobject.IO_ERR: "ERR", # Error condition.
1658
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1263
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1264
gobject.IO_ERR: u"ERR", # Error condition.
1265
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1659
1266
# broken, usually for pipes and
1663
1270
for cond, name in
1664
1271
condition_names.iteritems()
1665
1272
if cond & condition)
1666
# error, or the other end of multiprocessing.Pipe has closed
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1668
# Wait for other process to exit
1672
# Read a request from the child
1673
request = parent_pipe.recv()
1674
command = request[0]
1676
if command == 'init':
1678
address = request[2]
1680
for c in self.clients:
1681
if c.fingerprint == fpr:
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
1689
mandos_dbus_service.ClientNotFound(fpr,
1691
parent_pipe.send(False)
1694
gobject.io_add_watch(parent_pipe.fileno(),
1695
gobject.IO_IN | gobject.IO_HUP,
1696
functools.partial(self.handle_ipc,
1702
parent_pipe.send(True)
1703
# remove the old hook in favor of the new above hook on
1706
if command == 'funcall':
1707
funcname = request[1]
1711
parent_pipe.send(('data', getattr(client_object,
1715
if command == 'getattr':
1716
attrname = request[1]
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1723
if command == 'setattr':
1724
attrname = request[1]
1726
setattr(client_object, attrname, value)
1273
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1276
# Turn the pipe file descriptors into Python file objects
1277
if source not in file_objects:
1278
file_objects[source] = os.fdopen(source, u"r", 1)
1279
if reply_fd not in file_objects:
1280
file_objects[reply_fd] = os.fdopen(reply_fd, u"w", 0)
1282
# Read a line from the file object
1283
cmdline = file_objects[source].readline()
1284
if not cmdline: # Empty line means end of file
1285
# close the IPC pipes
1286
file_objects[source].close()
1287
del file_objects[source]
1288
file_objects[reply_fd].close()
1289
del file_objects[reply_fd]
1291
# Stop calling this function
1294
logger.debug(u"IPC command: %r", cmdline)
1296
# Parse and act on command
1297
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1299
if cmd == u"NOTFOUND":
1300
fpr, address = args.split(None, 1)
1301
logger.warning(u"Client not found for fingerprint: %s, ad"
1302
u"dress: %s", fpr, address)
1305
mandos_dbus_service.ClientNotFound(fpr, address)
1306
elif cmd == u"DISABLED":
1307
for client in self.clients:
1308
if client.name == args:
1309
logger.warning(u"Client %s is disabled", args)
1315
logger.error(u"Unknown client %s is disabled", args)
1316
elif cmd == u"SENDING":
1317
for client in self.clients:
1318
if client.name == args:
1319
logger.info(u"Sending secret to %s", client.name)
1326
logger.error(u"Sending secret to unknown client %s",
1328
elif cmd == u"GETATTR":
1329
attr_name, fpr = args.split(None, 1)
1330
for client in self.clients:
1331
if client.fingerprint == fpr:
1332
attr_value = getattr(client, attr_name, None)
1333
logger.debug("IPC reply: %r", attr_value)
1334
pickle.dump(attr_value, file_objects[reply_fd])
1337
logger.error(u"Client %s on address %s requesting "
1338
u"attribute %s not found", fpr, address,
1340
pickle.dump(None, file_objects[reply_fd])
1342
logger.error(u"Unknown IPC command: %r", cmdline)
1344
# Keep calling this function
1731
1348
def string_to_delta(interval):
1732
1349
"""Parse a string and return a datetime.timedelta
1734
>>> string_to_delta('7d')
1351
>>> string_to_delta(u'7d')
1735
1352
datetime.timedelta(7)
1736
>>> string_to_delta('60s')
1353
>>> string_to_delta(u'60s')
1737
1354
datetime.timedelta(0, 60)
1738
>>> string_to_delta('60m')
1355
>>> string_to_delta(u'60m')
1739
1356
datetime.timedelta(0, 3600)
1740
>>> string_to_delta('24h')
1357
>>> string_to_delta(u'24h')
1741
1358
datetime.timedelta(1)
1742
>>> string_to_delta('1w')
1359
>>> string_to_delta(u'1w')
1743
1360
datetime.timedelta(7)
1744
>>> string_to_delta('5m 30s')
1361
>>> string_to_delta(u'5m 30s')
1745
1362
datetime.timedelta(0, 330)
1747
1364
timevalue = datetime.timedelta(0)
1821
1438
##################################################################
1822
1439
# Parsing of options, both command line and config file
1824
parser = argparse.ArgumentParser()
1825
parser.add_argument("-v", "--version", action="version",
1826
version = "%%(prog)s %s" % version,
1827
help="show version number and exit")
1828
parser.add_argument("-i", "--interface", metavar="IF",
1829
help="Bind to interface IF")
1830
parser.add_argument("-a", "--address",
1831
help="Address to listen for requests on")
1832
parser.add_argument("-p", "--port", type=int,
1833
help="Port number to receive requests on")
1834
parser.add_argument("--check", action="store_true",
1835
help="Run self-test")
1836
parser.add_argument("--debug", action="store_true",
1837
help="Debug mode; run in foreground and log"
1839
parser.add_argument("--debuglevel", metavar="LEVEL",
1840
help="Debug level for stdout output")
1841
parser.add_argument("--priority", help="GnuTLS"
1842
" priority string (see GnuTLS documentation)")
1843
parser.add_argument("--servicename",
1844
metavar="NAME", help="Zeroconf service name")
1845
parser.add_argument("--configdir",
1846
default="/etc/mandos", metavar="DIR",
1847
help="Directory to search for configuration"
1849
parser.add_argument("--no-dbus", action="store_false",
1850
dest="use_dbus", help="Do not provide D-Bus"
1851
" system bus interface")
1852
parser.add_argument("--no-ipv6", action="store_false",
1853
dest="use_ipv6", help="Do not use IPv6")
1854
options = parser.parse_args()
1441
parser = optparse.OptionParser(version = "%%prog %s" % version)
1442
parser.add_option("-i", u"--interface", type=u"string",
1443
metavar="IF", help=u"Bind to interface IF")
1444
parser.add_option("-a", u"--address", type=u"string",
1445
help=u"Address to listen for requests on")
1446
parser.add_option("-p", u"--port", type=u"int",
1447
help=u"Port number to receive requests on")
1448
parser.add_option("--check", action=u"store_true",
1449
help=u"Run self-test")
1450
parser.add_option("--debug", action=u"store_true",
1451
help=u"Debug mode; run in foreground and log to"
1453
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1454
u" priority string (see GnuTLS documentation)")
1455
parser.add_option("--servicename", type=u"string",
1456
metavar=u"NAME", help=u"Zeroconf service name")
1457
parser.add_option("--configdir", type=u"string",
1458
default=u"/etc/mandos", metavar=u"DIR",
1459
help=u"Directory to search for configuration"
1461
parser.add_option("--no-dbus", action=u"store_false",
1462
dest=u"use_dbus", help=u"Do not provide D-Bus"
1463
u" system bus interface")
1464
parser.add_option("--no-ipv6", action=u"store_false",
1465
dest=u"use_ipv6", help=u"Do not use IPv6")
1466
options = parser.parse_args()[0]
1856
1468
if options.check:
1861
1473
# Default values for config file for server-global settings
1862
server_defaults = { "interface": "",
1867
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1868
"servicename": "Mandos",
1474
server_defaults = { u"interface": u"",
1479
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1480
u"servicename": u"Mandos",
1481
u"use_dbus": u"True",
1482
u"use_ipv6": u"True",
1874
1485
# Parse config file for server-global settings
1875
1486
server_config = configparser.SafeConfigParser(server_defaults)
1876
1487
del server_defaults
1877
1488
server_config.read(os.path.join(options.configdir,
1879
1490
# Convert the SafeConfigParser object to a dict
1880
1491
server_settings = server_config.defaults()
1881
1492
# Use the appropriate methods on the non-string config options
1882
for option in ("debug", "use_dbus", "use_ipv6"):
1883
server_settings[option] = server_config.getboolean("DEFAULT",
1493
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1494
server_settings[option] = server_config.getboolean(u"DEFAULT",
1885
1496
if server_settings["port"]:
1886
server_settings["port"] = server_config.getint("DEFAULT",
1497
server_settings["port"] = server_config.getint(u"DEFAULT",
1888
1499
del server_config
1890
1501
# Override the settings from the config file with command line
1891
1502
# options, if set.
1892
for option in ("interface", "address", "port", "debug",
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
1503
for option in (u"interface", u"address", u"port", u"debug",
1504
u"priority", u"servicename", u"configdir",
1505
u"use_dbus", u"use_ipv6"):
1895
1506
value = getattr(options, option)
1896
1507
if value is not None:
1897
1508
server_settings[option] = value
1905
1516
##################################################################
1907
1518
# For convenience
1908
debug = server_settings["debug"]
1909
debuglevel = server_settings["debuglevel"]
1910
use_dbus = server_settings["use_dbus"]
1911
use_ipv6 = server_settings["use_ipv6"]
1913
if server_settings["servicename"] != "Mandos":
1519
debug = server_settings[u"debug"]
1520
use_dbus = server_settings[u"use_dbus"]
1521
use_ipv6 = server_settings[u"use_ipv6"]
1524
syslogger.setLevel(logging.WARNING)
1525
console.setLevel(logging.WARNING)
1527
if server_settings[u"servicename"] != u"Mandos":
1914
1528
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1529
(u'Mandos (%s) [%%(process)d]:'
1530
u' %%(levelname)s: %%(message)s'
1531
% server_settings[u"servicename"]))
1919
1533
# Parse config file with clients
1920
client_defaults = { "timeout": "5m",
1921
"extended_timeout": "15m",
1923
"checker": "fping -q -- %%(host)s",
1925
"approval_delay": "0s",
1926
"approval_duration": "1s",
1534
client_defaults = { u"timeout": u"1h",
1536
u"checker": u"fping -q -- %%(host)s",
1928
1539
client_config = configparser.SafeConfigParser(client_defaults)
1929
client_config.read(os.path.join(server_settings["configdir"],
1540
client_config.read(os.path.join(server_settings[u"configdir"],
1932
1543
global mandos_dbus_service
1933
1544
mandos_dbus_service = None
1935
tcp_server = MandosServer((server_settings["address"],
1936
server_settings["port"]),
1546
tcp_server = MandosServer((server_settings[u"address"],
1547
server_settings[u"port"]),
1938
interface=(server_settings["interface"]
1549
interface=server_settings[u"interface"],
1940
1550
use_ipv6=use_ipv6,
1941
1551
gnutls_priority=
1942
server_settings["priority"],
1552
server_settings[u"priority"],
1943
1553
use_dbus=use_dbus)
1945
pidfilename = "/var/run/mandos.pid"
1947
pidfile = open(pidfilename, "w")
1949
logger.error("Could not open file %r", pidfilename)
1554
pidfilename = u"/var/run/mandos.pid"
1556
pidfile = open(pidfilename, u"w")
1558
logger.error(u"Could not open file %r", pidfilename)
1952
uid = pwd.getpwnam("_mandos").pw_uid
1953
gid = pwd.getpwnam("_mandos").pw_gid
1561
uid = pwd.getpwnam(u"_mandos").pw_uid
1562
gid = pwd.getpwnam(u"_mandos").pw_gid
1954
1563
except KeyError:
1956
uid = pwd.getpwnam("mandos").pw_uid
1957
gid = pwd.getpwnam("mandos").pw_gid
1565
uid = pwd.getpwnam(u"mandos").pw_uid
1566
gid = pwd.getpwnam(u"mandos").pw_gid
1958
1567
except KeyError:
1960
uid = pwd.getpwnam("nobody").pw_uid
1961
gid = pwd.getpwnam("nobody").pw_gid
1569
uid = pwd.getpwnam(u"nobody").pw_uid
1570
gid = pwd.getpwnam(u"nobody").pw_gid
1962
1571
except KeyError:
1968
except OSError as error:
1577
except OSError, error:
1969
1578
if error[0] != errno.EPERM:
1972
if not debug and not debuglevel:
1973
syslogger.setLevel(logging.WARNING)
1974
console.setLevel(logging.WARNING)
1976
level = getattr(logging, debuglevel.upper())
1977
syslogger.setLevel(level)
1978
console.setLevel(level)
1581
# Enable all possible GnuTLS debugging
1981
# Enable all possible GnuTLS debugging
1983
1583
# "Use a log level over 10 to enable all debugging options."
1984
1584
# - GnuTLS manual
1985
1585
gnutls.library.functions.gnutls_global_set_log_level(11)
1987
1587
@gnutls.library.types.gnutls_log_func
1988
1588
def debug_gnutls(level, string):
1989
logger.debug("GnuTLS: %s", string[:-1])
1589
logger.debug(u"GnuTLS: %s", string[:-1])
1991
1591
(gnutls.library.functions
1992
1592
.gnutls_global_set_log_function(debug_gnutls))
1994
# Redirect stdin so all checkers get /dev/null
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1996
os.dup2(null, sys.stdin.fileno())
2000
# No console logging
2001
logger.removeHandler(console)
2003
# Need to fork before connecting to D-Bus
2005
# Close all input and output, do double fork, etc.
2008
1594
global main_loop
2009
1595
# From the Avahi example code
2013
1599
# End of Avahi example code
2016
bus_name = dbus.service.BusName("se.recompile.Mandos",
1602
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2017
1603
bus, do_not_queue=True)
2018
old_bus_name = (dbus.service.BusName
2019
("se.bsnet.fukt.Mandos", bus,
2021
except dbus.exceptions.NameExistsException as e:
2022
logger.error(unicode(e) + ", disabling D-Bus")
1604
except dbus.exceptions.NameExistsException, e:
1605
logger.error(unicode(e) + u", disabling D-Bus")
2023
1606
use_dbus = False
2024
server_settings["use_dbus"] = False
1607
server_settings[u"use_dbus"] = False
2025
1608
tcp_server.use_dbus = False
2026
1609
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2027
service = AvahiService(name = server_settings["servicename"],
2028
servicetype = "_mandos._tcp",
1610
service = AvahiService(name = server_settings[u"servicename"],
1611
servicetype = u"_mandos._tcp",
2029
1612
protocol = protocol, bus = bus)
2030
1613
if server_settings["interface"]:
2031
1614
service.interface = (if_nametoindex
2032
(str(server_settings["interface"])))
2034
global multiprocessing_manager
2035
multiprocessing_manager = multiprocessing.Manager()
1615
(str(server_settings[u"interface"])))
2037
1617
client_class = Client
2039
client_class = functools.partial(ClientDBusTransitional,
2041
def client_config_items(config, section):
2042
special_settings = {
2043
"approved_by_default":
2044
lambda: config.getboolean(section,
2045
"approved_by_default"),
2047
for name, value in config.items(section):
2049
yield (name, special_settings[name]())
1619
client_class = functools.partial(ClientDBus, bus = bus)
2053
1620
tcp_server.clients.update(set(
2054
1621
client_class(name = section,
2055
config= dict(client_config_items(
2056
client_config, section)))
1622
config= dict(client_config.items(section)))
2057
1623
for section in client_config.sections()))
2058
1624
if not tcp_server.clients:
2059
logger.warning("No clients defined")
1625
logger.warning(u"No clients defined")
1628
# Redirect stdin so all checkers get /dev/null
1629
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1630
os.dup2(null, sys.stdin.fileno())
1634
# No console logging
1635
logger.removeHandler(console)
1636
# Close all input and output, do double fork, etc.
1642
pidfile.write(str(pid) + "\n")
1645
logger.error(u"Could not write to file %r with PID %d",
1648
# "pidfile" was never created
2065
pidfile.write(str(pid) + "\n".encode("utf-8"))
2068
logger.error("Could not write to file %r with PID %d",
2071
# "pidfile" was never created
2075
1653
signal.signal(signal.SIGINT, signal.SIG_IGN)
2077
1654
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2078
1655
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2081
1658
class MandosDBusService(dbus.service.Object):
2082
1659
"""A D-Bus proxy object"""
2083
1660
def __init__(self):
2084
dbus.service.Object.__init__(self, bus, "/")
2085
_interface = "se.recompile.Mandos"
1661
dbus.service.Object.__init__(self, bus, u"/")
1662
_interface = u"se.bsnet.fukt.Mandos"
2087
@dbus.service.signal(_interface, signature="o")
1664
@dbus.service.signal(_interface, signature=u"o")
2088
1665
def ClientAdded(self, objpath):
2092
@dbus.service.signal(_interface, signature="ss")
1669
@dbus.service.signal(_interface, signature=u"ss")
2093
1670
def ClientNotFound(self, fingerprint, address):
2097
@dbus.service.signal(_interface, signature="os")
1674
@dbus.service.signal(_interface, signature=u"os")
2098
1675
def ClientRemoved(self, objpath, name):
2102
@dbus.service.method(_interface, out_signature="ao")
1679
@dbus.service.method(_interface, out_signature=u"ao")
2103
1680
def GetAllClients(self):
2105
1682
return dbus.Array(c.dbus_object_path
2106
1683
for c in tcp_server.clients)
2108
1685
@dbus.service.method(_interface,
2109
out_signature="a{oa{sv}}")
1686
out_signature=u"a{oa{sv}}")
2110
1687
def GetAllClientsWithProperties(self):
2112
1689
return dbus.Dictionary(
2113
((c.dbus_object_path, c.GetAll(""))
1690
((c.dbus_object_path, c.GetAll(u""))
2114
1691
for c in tcp_server.clients),
1692
signature=u"oa{sv}")
2117
@dbus.service.method(_interface, in_signature="o")
1694
@dbus.service.method(_interface, in_signature=u"o")
2118
1695
def RemoveClient(self, object_path):
2120
1697
for c in tcp_server.clients: