241
226
"""A representation of a client host served by this server.
244
_approved: bool(); 'None' if not yet approved/disapproved
245
approval_delay: datetime.timedelta(); Time to wait for approval
246
approval_duration: datetime.timedelta(); Duration of one approval
229
name: string; from the config file, used in log messages and
231
fingerprint: string (40 or 32 hexadecimal digits); used to
232
uniquely identify the client
233
secret: bytestring; sent verbatim (over TLS) to client
234
host: string; available for use by the checker command
235
created: datetime.datetime(); (UTC) object creation
236
last_enabled: datetime.datetime(); (UTC)
238
last_checked_ok: datetime.datetime(); (UTC) or None
239
timeout: datetime.timedelta(); How long from last_checked_ok
240
until this client is invalid
241
interval: datetime.timedelta(); How often to start a new checker
242
disable_hook: If set, called by disable() as disable_hook(self)
247
243
checker: subprocess.Popen(); a running checker process used
248
244
to see if the client lives.
249
245
'None' if no process is running.
250
checker_callback_tag: a gobject event source tag, or None
251
checker_command: string; External command which is run to check
252
if client lives. %() expansions are done at
246
checker_initiator_tag: a gobject event source tag, or None
247
disable_initiator_tag: - '' -
248
checker_callback_tag: - '' -
249
checker_command: string; External command which is run to check if
250
client lives. %() expansions are done at
253
251
runtime with vars(self) as dict, so that for
254
252
instance %(name)s can be used in the command.
255
checker_initiator_tag: a gobject event source tag, or None
256
created: datetime.datetime(); (UTC) object creation
257
253
current_checker_command: string; current running checker_command
258
disable_hook: If set, called by disable() as disable_hook(self)
259
disable_initiator_tag: a gobject event source tag, or None
261
fingerprint: string (40 or 32 hexadecimal digits); used to
262
uniquely identify the client
263
host: string; available for use by the checker command
264
interval: datetime.timedelta(); How often to start a new checker
265
last_approval_request: datetime.datetime(); (UTC) or None
266
last_checked_ok: datetime.datetime(); (UTC) or None
267
last_enabled: datetime.datetime(); (UTC)
268
name: string; from the config file, used in log messages and
270
secret: bytestring; sent verbatim (over TLS) to client
271
timeout: datetime.timedelta(); How long from last_checked_ok
272
until this client is disabled
273
runtime_expansions: Allowed attributes for runtime expansion.
276
runtime_expansions = ("approval_delay", "approval_duration",
277
"created", "enabled", "fingerprint",
278
"host", "interval", "last_checked_ok",
279
"last_enabled", "name", "timeout")
282
def _timedelta_to_milliseconds(td):
283
"Convert a datetime.timedelta() to milliseconds"
284
return ((td.days * 24 * 60 * 60 * 1000)
285
+ (td.seconds * 1000)
286
+ (td.microseconds // 1000))
257
def _datetime_to_milliseconds(dt):
258
"Convert a datetime.datetime() to milliseconds"
259
return ((dt.days * 24 * 60 * 60 * 1000)
260
+ (dt.seconds * 1000)
261
+ (dt.microseconds // 1000))
288
263
def timeout_milliseconds(self):
289
264
"Return the 'timeout' attribute in milliseconds"
290
return self._timedelta_to_milliseconds(self.timeout)
265
return self._datetime_to_milliseconds(self.timeout)
292
267
def interval_milliseconds(self):
293
268
"Return the 'interval' attribute in milliseconds"
294
return self._timedelta_to_milliseconds(self.interval)
296
def approval_delay_milliseconds(self):
297
return self._timedelta_to_milliseconds(self.approval_delay)
269
return self._datetime_to_milliseconds(self.interval)
299
271
def __init__(self, name = None, disable_hook=None, config=None):
300
272
"""Note: the 'checker' key in 'config' sets the
304
276
if config is None:
306
logger.debug("Creating client %r", self.name)
278
logger.debug(u"Creating client %r", self.name)
307
279
# Uppercase and remove spaces from fingerprint for later
308
280
# comparison purposes with return value from the fingerprint()
310
self.fingerprint = (config["fingerprint"].upper()
312
logger.debug(" Fingerprint: %s", self.fingerprint)
313
if "secret" in config:
314
self.secret = config["secret"].decode("base64")
315
elif "secfile" in config:
316
with open(os.path.expanduser(os.path.expandvars
317
(config["secfile"])),
282
self.fingerprint = (config[u"fingerprint"].upper()
284
logger.debug(u" Fingerprint: %s", self.fingerprint)
285
if u"secret" in config:
286
self.secret = config[u"secret"].decode(u"base64")
287
elif u"secfile" in config:
288
with closing(open(os.path.expanduser
290
(config[u"secfile"])))) as secfile:
319
291
self.secret = secfile.read()
321
raise TypeError("No secret or secfile for client %s"
293
raise TypeError(u"No secret or secfile for client %s"
323
self.host = config.get("host", "")
295
self.host = config.get(u"host", u"")
324
296
self.created = datetime.datetime.utcnow()
325
297
self.enabled = False
326
self.last_approval_request = None
327
298
self.last_enabled = None
328
299
self.last_checked_ok = None
329
self.timeout = string_to_delta(config["timeout"])
330
self.interval = string_to_delta(config["interval"])
300
self.timeout = string_to_delta(config[u"timeout"])
301
self.interval = string_to_delta(config[u"interval"])
331
302
self.disable_hook = disable_hook
332
303
self.checker = None
333
304
self.checker_initiator_tag = None
334
305
self.disable_initiator_tag = None
335
306
self.checker_callback_tag = None
336
self.checker_command = config["checker"]
307
self.checker_command = config[u"checker"]
337
308
self.current_checker_command = None
338
309
self.last_connect = None
339
self._approved = None
340
self.approved_by_default = config.get("approved_by_default",
342
self.approvals_pending = 0
343
self.approval_delay = string_to_delta(
344
config["approval_delay"])
345
self.approval_duration = string_to_delta(
346
config["approval_duration"])
347
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
349
def send_changedstate(self):
350
self.changedstate.acquire()
351
self.changedstate.notify_all()
352
self.changedstate.release()
354
311
def enable(self):
355
312
"""Start this client's checker and timeout hooks"""
356
if getattr(self, "enabled", False):
359
self.send_changedstate()
360
313
self.last_enabled = datetime.datetime.utcnow()
361
314
# Schedule a new checker to be started an 'interval' from now,
362
315
# and every interval from then on.
363
316
self.checker_initiator_tag = (gobject.timeout_add
364
317
(self.interval_milliseconds(),
365
318
self.start_checker))
319
# Also start a new checker *right now*.
366
321
# Schedule a disable() when 'timeout' has passed
367
322
self.disable_initiator_tag = (gobject.timeout_add
368
323
(self.timeout_milliseconds(),
370
325
self.enabled = True
371
# Also start a new checker *right now*.
374
def disable(self, quiet=True):
375
328
"""Disable this client."""
376
329
if not getattr(self, "enabled", False):
379
self.send_changedstate()
381
logger.info("Disabling client %s", self.name)
382
if getattr(self, "disable_initiator_tag", False):
331
logger.info(u"Disabling client %s", self.name)
332
if getattr(self, u"disable_initiator_tag", False):
383
333
gobject.source_remove(self.disable_initiator_tag)
384
334
self.disable_initiator_tag = None
385
if getattr(self, "checker_initiator_tag", False):
335
if getattr(self, u"checker_initiator_tag", False):
386
336
gobject.source_remove(self.checker_initiator_tag)
387
337
self.checker_initiator_tag = None
388
338
self.stop_checker()
508
448
if self.checker_callback_tag:
509
449
gobject.source_remove(self.checker_callback_tag)
510
450
self.checker_callback_tag = None
511
if getattr(self, "checker", None) is None:
451
if getattr(self, u"checker", None) is None:
513
logger.debug("Stopping checker for %(name)s", vars(self))
453
logger.debug(u"Stopping checker for %(name)s", vars(self))
515
455
os.kill(self.checker.pid, signal.SIGTERM)
517
457
#if self.checker.poll() is None:
518
458
# os.kill(self.checker.pid, signal.SIGKILL)
519
459
except OSError, error:
520
460
if error.errno != errno.ESRCH: # No such process
522
462
self.checker = None
524
def dbus_service_property(dbus_interface, signature="v",
525
access="readwrite", byte_arrays=False):
526
"""Decorators for marking methods of a DBusObjectWithProperties to
527
become properties on the D-Bus.
529
The decorated method will be called with no arguments by "Get"
530
and with one argument by "Set".
532
The parameters, where they are supported, are the same as
533
dbus.service.method, except there is only "signature", since the
534
type from Get() and the type sent to Set() is the same.
536
# Encoding deeply encoded byte arrays is not supported yet by the
537
# "Set" method, so we fail early here:
538
if byte_arrays and signature != "ay":
539
raise ValueError("Byte arrays not supported for non-'ay'"
540
" signature %r" % signature)
542
func._dbus_is_property = True
543
func._dbus_interface = dbus_interface
544
func._dbus_signature = signature
545
func._dbus_access = access
546
func._dbus_name = func.__name__
547
if func._dbus_name.endswith("_dbus_property"):
548
func._dbus_name = func._dbus_name[:-14]
549
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
554
class DBusPropertyException(dbus.exceptions.DBusException):
555
"""A base class for D-Bus property-related exceptions
557
def __unicode__(self):
558
return unicode(str(self))
561
class DBusPropertyAccessException(DBusPropertyException):
562
"""A property's access permissions disallows an operation.
567
class DBusPropertyNotFound(DBusPropertyException):
568
"""An attempt was made to access a non-existing property.
573
class DBusObjectWithProperties(dbus.service.Object):
574
"""A D-Bus object with properties.
576
Classes inheriting from this can use the dbus_service_property
577
decorator to expose methods as D-Bus properties. It exposes the
578
standard Get(), Set(), and GetAll() methods on the D-Bus.
582
def _is_dbus_property(obj):
583
return getattr(obj, "_dbus_is_property", False)
585
def _get_all_dbus_properties(self):
586
"""Returns a generator of (name, attribute) pairs
588
return ((prop._dbus_name, prop)
590
inspect.getmembers(self, self._is_dbus_property))
592
def _get_dbus_property(self, interface_name, property_name):
593
"""Returns a bound method if one exists which is a D-Bus
594
property with the specified name and interface.
596
for name in (property_name,
597
property_name + "_dbus_property"):
598
prop = getattr(self, name, None)
600
or not self._is_dbus_property(prop)
601
or prop._dbus_name != property_name
602
or (interface_name and prop._dbus_interface
603
and interface_name != prop._dbus_interface)):
607
raise DBusPropertyNotFound(self.dbus_object_path + ":"
608
+ interface_name + "."
611
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
613
def Get(self, interface_name, property_name):
614
"""Standard D-Bus property Get() method, see D-Bus standard.
616
prop = self._get_dbus_property(interface_name, property_name)
617
if prop._dbus_access == "write":
618
raise DBusPropertyAccessException(property_name)
620
if not hasattr(value, "variant_level"):
622
return type(value)(value, variant_level=value.variant_level+1)
624
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
625
def Set(self, interface_name, property_name, value):
626
"""Standard D-Bus property Set() method, see D-Bus standard.
628
prop = self._get_dbus_property(interface_name, property_name)
629
if prop._dbus_access == "read":
630
raise DBusPropertyAccessException(property_name)
631
if prop._dbus_get_args_options["byte_arrays"]:
632
# The byte_arrays option is not supported yet on
633
# signatures other than "ay".
634
if prop._dbus_signature != "ay":
636
value = dbus.ByteArray(''.join(unichr(byte)
640
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
641
out_signature="a{sv}")
642
def GetAll(self, interface_name):
643
"""Standard D-Bus property GetAll() method, see D-Bus
646
Note: Will not include properties with access="write".
649
for name, prop in self._get_all_dbus_properties():
651
and interface_name != prop._dbus_interface):
652
# Interface non-empty but did not match
654
# Ignore write-only properties
655
if prop._dbus_access == "write":
658
if not hasattr(value, "variant_level"):
661
all[name] = type(value)(value, variant_level=
662
value.variant_level+1)
663
return dbus.Dictionary(all, signature="sv")
665
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
667
path_keyword='object_path',
668
connection_keyword='connection')
669
def Introspect(self, object_path, connection):
670
"""Standard D-Bus method, overloaded to insert property tags.
672
xmlstring = dbus.service.Object.Introspect(self, object_path,
675
document = xml.dom.minidom.parseString(xmlstring)
676
def make_tag(document, name, prop):
677
e = document.createElement("property")
678
e.setAttribute("name", name)
679
e.setAttribute("type", prop._dbus_signature)
680
e.setAttribute("access", prop._dbus_access)
682
for if_tag in document.getElementsByTagName("interface"):
683
for tag in (make_tag(document, name, prop)
685
in self._get_all_dbus_properties()
686
if prop._dbus_interface
687
== if_tag.getAttribute("name")):
688
if_tag.appendChild(tag)
689
# Add the names to the return values for the
690
# "org.freedesktop.DBus.Properties" methods
691
if (if_tag.getAttribute("name")
692
== "org.freedesktop.DBus.Properties"):
693
for cn in if_tag.getElementsByTagName("method"):
694
if cn.getAttribute("name") == "Get":
695
for arg in cn.getElementsByTagName("arg"):
696
if (arg.getAttribute("direction")
698
arg.setAttribute("name", "value")
699
elif cn.getAttribute("name") == "GetAll":
700
for arg in cn.getElementsByTagName("arg"):
701
if (arg.getAttribute("direction")
703
arg.setAttribute("name", "props")
704
xmlstring = document.toxml("utf-8")
706
except (AttributeError, xml.dom.DOMException,
707
xml.parsers.expat.ExpatError), error:
708
logger.error("Failed to override Introspection method",
713
class ClientDBus(Client, DBusObjectWithProperties):
464
def still_valid(self):
465
"""Has the timeout not yet passed for this client?"""
466
if not getattr(self, u"enabled", False):
468
now = datetime.datetime.utcnow()
469
if self.last_checked_ok is None:
470
return now < (self.created + self.timeout)
472
return now < (self.last_checked_ok + self.timeout)
475
class ClientDBus(Client, dbus.service.Object):
714
476
"""A Client class using D-Bus
717
dbus_object_path: dbus.ObjectPath
718
bus: dbus.SystemBus()
479
dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
721
runtime_expansions = (Client.runtime_expansions
722
+ ("dbus_object_path",))
724
481
# dbus.service.Object doesn't use super(), so we can't either.
726
def __init__(self, bus = None, *args, **kwargs):
727
self._approvals_pending = 0
483
def __init__(self, *args, **kwargs):
729
484
Client.__init__(self, *args, **kwargs)
730
485
# Only now, when this client is initialized, can it show up on
732
client_object_name = unicode(self.name).translate(
735
487
self.dbus_object_path = (dbus.ObjectPath
736
("/clients/" + client_object_name))
737
DBusObjectWithProperties.__init__(self, self.bus,
738
self.dbus_object_path)
740
def _get_approvals_pending(self):
741
return self._approvals_pending
742
def _set_approvals_pending(self, value):
743
old_value = self._approvals_pending
744
self._approvals_pending = value
746
if (hasattr(self, "dbus_object_path")
747
and bval is not bool(old_value)):
748
dbus_bool = dbus.Boolean(bval, variant_level=1)
749
self.PropertyChanged(dbus.String("ApprovalPending"),
752
approvals_pending = property(_get_approvals_pending,
753
_set_approvals_pending)
754
del _get_approvals_pending, _set_approvals_pending
489
+ self.name.replace(u".", u"_")))
490
dbus.service.Object.__init__(self, bus,
491
self.dbus_object_path)
757
494
def _datetime_to_dbus(dt, variant_level=0):
843
571
# Emit D-Bus signal
844
572
self.CheckerStarted(self.current_checker_command)
845
573
self.PropertyChanged(
846
dbus.String("CheckerRunning"),
574
dbus.String(u"checker_running"),
847
575
dbus.Boolean(True, variant_level=1))
850
578
def stop_checker(self, *args, **kwargs):
851
old_checker = getattr(self, "checker", None)
579
old_checker = getattr(self, u"checker", None)
852
580
r = Client.stop_checker(self, *args, **kwargs)
853
581
if (old_checker is not None
854
and getattr(self, "checker", None) is None):
855
self.PropertyChanged(dbus.String("CheckerRunning"),
582
and getattr(self, u"checker", None) is None):
583
self.PropertyChanged(dbus.String(u"checker_running"),
856
584
dbus.Boolean(False, variant_level=1))
859
def _reset_approved(self):
860
self._approved = None
863
def approve(self, value=True):
864
self.send_changedstate()
865
self._approved = value
866
gobject.timeout_add(self._timedelta_to_milliseconds
867
(self.approval_duration),
868
self._reset_approved)
871
## D-Bus methods, signals & properties
872
_interface = "se.bsnet.fukt.Mandos.Client"
587
## D-Bus methods & signals
588
_interface = u"se.bsnet.fukt.Mandos.Client"
591
@dbus.service.method(_interface)
593
return self.checked_ok()
876
595
# CheckerCompleted - signal
877
@dbus.service.signal(_interface, signature="nxs")
596
@dbus.service.signal(_interface, signature=u"nxs")
878
597
def CheckerCompleted(self, exitcode, waitstatus, command):
882
601
# CheckerStarted - signal
883
@dbus.service.signal(_interface, signature="s")
602
@dbus.service.signal(_interface, signature=u"s")
884
603
def CheckerStarted(self, command):
607
# GetAllProperties - method
608
@dbus.service.method(_interface, out_signature=u"a{sv}")
609
def GetAllProperties(self):
611
return dbus.Dictionary({
612
dbus.String(u"name"):
613
dbus.String(self.name, variant_level=1),
614
dbus.String(u"fingerprint"):
615
dbus.String(self.fingerprint, variant_level=1),
616
dbus.String(u"host"):
617
dbus.String(self.host, variant_level=1),
618
dbus.String(u"created"):
619
self._datetime_to_dbus(self.created,
621
dbus.String(u"last_enabled"):
622
(self._datetime_to_dbus(self.last_enabled,
624
if self.last_enabled is not None
625
else dbus.Boolean(False, variant_level=1)),
626
dbus.String(u"enabled"):
627
dbus.Boolean(self.enabled, variant_level=1),
628
dbus.String(u"last_checked_ok"):
629
(self._datetime_to_dbus(self.last_checked_ok,
631
if self.last_checked_ok is not None
632
else dbus.Boolean (False, variant_level=1)),
633
dbus.String(u"timeout"):
634
dbus.UInt64(self.timeout_milliseconds(),
636
dbus.String(u"interval"):
637
dbus.UInt64(self.interval_milliseconds(),
639
dbus.String(u"checker"):
640
dbus.String(self.checker_command,
642
dbus.String(u"checker_running"):
643
dbus.Boolean(self.checker is not None,
645
dbus.String(u"object_path"):
646
dbus.ObjectPath(self.dbus_object_path,
650
# IsStillValid - method
651
@dbus.service.method(_interface, out_signature=u"b")
652
def IsStillValid(self):
653
return self.still_valid()
888
655
# PropertyChanged - signal
889
@dbus.service.signal(_interface, signature="sv")
656
@dbus.service.signal(_interface, signature=u"sv")
890
657
def PropertyChanged(self, property, value):
661
# ReceivedSecret - signal
895
662
@dbus.service.signal(_interface)
898
Is sent after a successful transfer of secret from the Mandos
899
server to mandos-client
663
def ReceivedSecret(self):
903
667
# Rejected - signal
904
@dbus.service.signal(_interface, signature="s")
905
def Rejected(self, reason):
668
@dbus.service.signal(_interface)
909
# NeedApproval - signal
910
@dbus.service.signal(_interface, signature="tb")
911
def NeedApproval(self, timeout, default):
913
return self.need_approval()
918
@dbus.service.method(_interface, in_signature="b")
919
def Approve(self, value):
923
@dbus.service.method(_interface)
925
return self.checked_ok()
673
# SetChecker - method
674
@dbus.service.method(_interface, in_signature=u"s")
675
def SetChecker(self, checker):
676
"D-Bus setter method"
677
self.checker_command = checker
679
self.PropertyChanged(dbus.String(u"checker"),
680
dbus.String(self.checker_command,
684
@dbus.service.method(_interface, in_signature=u"s")
685
def SetHost(self, host):
686
"D-Bus setter method"
689
self.PropertyChanged(dbus.String(u"host"),
690
dbus.String(self.host, variant_level=1))
692
# SetInterval - method
693
@dbus.service.method(_interface, in_signature=u"t")
694
def SetInterval(self, milliseconds):
695
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
697
self.PropertyChanged(dbus.String(u"interval"),
698
(dbus.UInt64(self.interval_milliseconds(),
702
@dbus.service.method(_interface, in_signature=u"ay",
704
def SetSecret(self, secret):
705
"D-Bus setter method"
706
self.secret = str(secret)
708
# SetTimeout - method
709
@dbus.service.method(_interface, in_signature=u"t")
710
def SetTimeout(self, milliseconds):
711
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
713
self.PropertyChanged(dbus.String(u"timeout"),
714
(dbus.UInt64(self.timeout_milliseconds(),
927
717
# Enable - method
928
718
@dbus.service.method(_interface)
947
737
def StopChecker(self):
948
738
self.stop_checker()
952
# ApprovalPending - property
953
@dbus_service_property(_interface, signature="b", access="read")
954
def ApprovalPending_dbus_property(self):
955
return dbus.Boolean(bool(self.approvals_pending))
957
# ApprovedByDefault - property
958
@dbus_service_property(_interface, signature="b",
960
def ApprovedByDefault_dbus_property(self, value=None):
961
if value is None: # get
962
return dbus.Boolean(self.approved_by_default)
963
self.approved_by_default = bool(value)
965
self.PropertyChanged(dbus.String("ApprovedByDefault"),
966
dbus.Boolean(value, variant_level=1))
968
# ApprovalDelay - property
969
@dbus_service_property(_interface, signature="t",
971
def ApprovalDelay_dbus_property(self, value=None):
972
if value is None: # get
973
return dbus.UInt64(self.approval_delay_milliseconds())
974
self.approval_delay = datetime.timedelta(0, 0, 0, value)
976
self.PropertyChanged(dbus.String("ApprovalDelay"),
977
dbus.UInt64(value, variant_level=1))
979
# ApprovalDuration - property
980
@dbus_service_property(_interface, signature="t",
982
def ApprovalDuration_dbus_property(self, value=None):
983
if value is None: # get
984
return dbus.UInt64(self._timedelta_to_milliseconds(
985
self.approval_duration))
986
self.approval_duration = datetime.timedelta(0, 0, 0, value)
988
self.PropertyChanged(dbus.String("ApprovalDuration"),
989
dbus.UInt64(value, variant_level=1))
992
@dbus_service_property(_interface, signature="s", access="read")
993
def Name_dbus_property(self):
994
return dbus.String(self.name)
996
# Fingerprint - property
997
@dbus_service_property(_interface, signature="s", access="read")
998
def Fingerprint_dbus_property(self):
999
return dbus.String(self.fingerprint)
1002
@dbus_service_property(_interface, signature="s",
1004
def Host_dbus_property(self, value=None):
1005
if value is None: # get
1006
return dbus.String(self.host)
1009
self.PropertyChanged(dbus.String("Host"),
1010
dbus.String(value, variant_level=1))
1012
# Created - property
1013
@dbus_service_property(_interface, signature="s", access="read")
1014
def Created_dbus_property(self):
1015
return dbus.String(self._datetime_to_dbus(self.created))
1017
# LastEnabled - property
1018
@dbus_service_property(_interface, signature="s", access="read")
1019
def LastEnabled_dbus_property(self):
1020
if self.last_enabled is None:
1021
return dbus.String("")
1022
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1024
# Enabled - property
1025
@dbus_service_property(_interface, signature="b",
1027
def Enabled_dbus_property(self, value=None):
1028
if value is None: # get
1029
return dbus.Boolean(self.enabled)
1035
# LastCheckedOK - property
1036
@dbus_service_property(_interface, signature="s",
1038
def LastCheckedOK_dbus_property(self, value=None):
1039
if value is not None:
1042
if self.last_checked_ok is None:
1043
return dbus.String("")
1044
return dbus.String(self._datetime_to_dbus(self
1047
# LastApprovalRequest - property
1048
@dbus_service_property(_interface, signature="s", access="read")
1049
def LastApprovalRequest_dbus_property(self):
1050
if self.last_approval_request is None:
1051
return dbus.String("")
1052
return dbus.String(self.
1053
_datetime_to_dbus(self
1054
.last_approval_request))
1056
# Timeout - property
1057
@dbus_service_property(_interface, signature="t",
1059
def Timeout_dbus_property(self, value=None):
1060
if value is None: # get
1061
return dbus.UInt64(self.timeout_milliseconds())
1062
self.timeout = datetime.timedelta(0, 0, 0, value)
1064
self.PropertyChanged(dbus.String("Timeout"),
1065
dbus.UInt64(value, variant_level=1))
1066
if getattr(self, "disable_initiator_tag", None) is None:
1068
# Reschedule timeout
1069
gobject.source_remove(self.disable_initiator_tag)
1070
self.disable_initiator_tag = None
1071
time_to_die = (self.
1072
_timedelta_to_milliseconds((self
1077
if time_to_die <= 0:
1078
# The timeout has passed
1081
self.disable_initiator_tag = (gobject.timeout_add
1082
(time_to_die, self.disable))
1084
# Interval - property
1085
@dbus_service_property(_interface, signature="t",
1087
def Interval_dbus_property(self, value=None):
1088
if value is None: # get
1089
return dbus.UInt64(self.interval_milliseconds())
1090
self.interval = datetime.timedelta(0, 0, 0, value)
1092
self.PropertyChanged(dbus.String("Interval"),
1093
dbus.UInt64(value, variant_level=1))
1094
if getattr(self, "checker_initiator_tag", None) is None:
1096
# Reschedule checker run
1097
gobject.source_remove(self.checker_initiator_tag)
1098
self.checker_initiator_tag = (gobject.timeout_add
1099
(value, self.start_checker))
1100
self.start_checker() # Start one now, too
1102
# Checker - property
1103
@dbus_service_property(_interface, signature="s",
1105
def Checker_dbus_property(self, value=None):
1106
if value is None: # get
1107
return dbus.String(self.checker_command)
1108
self.checker_command = value
1110
self.PropertyChanged(dbus.String("Checker"),
1111
dbus.String(self.checker_command,
1114
# CheckerRunning - property
1115
@dbus_service_property(_interface, signature="b",
1117
def CheckerRunning_dbus_property(self, value=None):
1118
if value is None: # get
1119
return dbus.Boolean(self.checker is not None)
1121
self.start_checker()
1125
# ObjectPath - property
1126
@dbus_service_property(_interface, signature="o", access="read")
1127
def ObjectPath_dbus_property(self):
1128
return self.dbus_object_path # is already a dbus.ObjectPath
1131
@dbus_service_property(_interface, signature="ay",
1132
access="write", byte_arrays=True)
1133
def Secret_dbus_property(self, value):
1134
self.secret = str(value)
1139
class ProxyClient(object):
1140
def __init__(self, child_pipe, fpr, address):
1141
self._pipe = child_pipe
1142
self._pipe.send(('init', fpr, address))
1143
if not self._pipe.recv():
1146
def __getattribute__(self, name):
1147
if(name == '_pipe'):
1148
return super(ProxyClient, self).__getattribute__(name)
1149
self._pipe.send(('getattr', name))
1150
data = self._pipe.recv()
1151
if data[0] == 'data':
1153
if data[0] == 'function':
1154
def func(*args, **kwargs):
1155
self._pipe.send(('funcall', name, args, kwargs))
1156
return self._pipe.recv()[1]
1159
def __setattr__(self, name, value):
1160
if(name == '_pipe'):
1161
return super(ProxyClient, self).__setattr__(name, value)
1162
self._pipe.send(('setattr', name, value))
1165
743
class ClientHandler(socketserver.BaseRequestHandler, object):
1166
744
"""A class to handle client connections.
1169
747
Note: This will run in its own forked process."""
1171
749
def handle(self):
1172
with contextlib.closing(self.server.child_pipe) as child_pipe:
1173
logger.info("TCP connection from: %s",
1174
unicode(self.client_address))
1175
logger.debug("Pipe FD: %d",
1176
self.server.child_pipe.fileno())
750
logger.info(u"TCP connection from: %s",
751
unicode(self.client_address))
752
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
753
# Open IPC pipe to parent process
754
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
1178
755
session = (gnutls.connection
1179
756
.ClientSession(self.request,
1180
757
gnutls.connection
1181
758
.X509Credentials()))
760
line = self.request.makefile().readline()
761
logger.debug(u"Protocol version: %r", line)
763
if int(line.strip().split()[0]) > 1:
765
except (ValueError, IndexError, RuntimeError), error:
766
logger.error(u"Unknown protocol version: %s", error)
1183
769
# Note: gnutls.connection.X509Credentials is really a
1184
770
# generic GnuTLS certificate credentials object so long as
1185
771
# no X.509 keys are added to it. Therefore, we can use it
1186
772
# here despite using OpenPGP certificates.
1188
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1189
# "+AES-256-CBC", "+SHA1",
1190
# "+COMP-NULL", "+CTYPE-OPENPGP",
774
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
775
# u"+AES-256-CBC", u"+SHA1",
776
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1192
778
# Use a fallback default, since this MUST be set.
1193
779
priority = self.server.gnutls_priority
1194
780
if priority is None:
1196
782
(gnutls.library.functions
1197
783
.gnutls_priority_set_direct(session._c_object,
1198
784
priority, None))
1200
# Start communication using the Mandos protocol
1201
# Get protocol number
1202
line = self.request.makefile().readline()
1203
logger.debug("Protocol version: %r", line)
1205
if int(line.strip().split()[0]) > 1:
1207
except (ValueError, IndexError, RuntimeError), error:
1208
logger.error("Unknown protocol version: %s", error)
1211
# Start GnuTLS connection
1213
787
session.handshake()
1214
788
except gnutls.errors.GNUTLSError, error:
1215
logger.warning("Handshake failed: %s", error)
789
logger.warning(u"Handshake failed: %s", error)
1216
790
# Do not run session.bye() here: the session is not
1217
791
# established. Just abandon the request.
1219
logger.debug("Handshake succeeded")
1221
approval_required = False
793
logger.debug(u"Handshake succeeded")
1224
fpr = self.fingerprint(self.peer_certificate
1226
except (TypeError, gnutls.errors.GNUTLSError), error:
1227
logger.warning("Bad certificate: %s", error)
1229
logger.debug("Fingerprint: %s", fpr)
1232
client = ProxyClient(child_pipe, fpr,
1233
self.client_address)
1237
if client.approval_delay:
1238
delay = client.approval_delay
1239
client.approvals_pending += 1
1240
approval_required = True
1243
if not client.enabled:
1244
logger.warning("Client %s is disabled",
1246
if self.server.use_dbus:
1248
client.Rejected("Disabled")
1251
if client._approved or not client.approval_delay:
1252
#We are approved or approval is disabled
1254
elif client._approved is None:
1255
logger.info("Client %s needs approval",
1257
if self.server.use_dbus:
1259
client.NeedApproval(
1260
client.approval_delay_milliseconds(),
1261
client.approved_by_default)
1263
logger.warning("Client %s was not approved",
1265
if self.server.use_dbus:
1267
client.Rejected("Denied")
1270
#wait until timeout or approved
1271
#x = float(client._timedelta_to_milliseconds(delay))
1272
time = datetime.datetime.now()
1273
client.changedstate.acquire()
1274
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1275
client.changedstate.release()
1276
time2 = datetime.datetime.now()
1277
if (time2 - time) >= delay:
1278
if not client.approved_by_default:
1279
logger.warning("Client %s timed out while"
1280
" waiting for approval",
1282
if self.server.use_dbus:
1284
client.Rejected("Approval timed out")
1289
delay -= time2 - time
1292
while sent_size < len(client.secret):
1294
sent = session.send(client.secret[sent_size:])
1295
except (gnutls.errors.GNUTLSError), error:
1296
logger.warning("gnutls send failed")
1298
logger.debug("Sent: %d, remaining: %d",
1299
sent, len(client.secret)
1300
- (sent_size + sent))
1303
logger.info("Sending secret to %s", client.name)
1304
# bump the timeout as if seen
1306
if self.server.use_dbus:
795
fpr = self.fingerprint(self.peer_certificate(session))
796
except (TypeError, gnutls.errors.GNUTLSError), error:
797
logger.warning(u"Bad certificate: %s", error)
800
logger.debug(u"Fingerprint: %s", fpr)
1311
if approval_required:
1312
client.approvals_pending -= 1
1315
except (gnutls.errors.GNUTLSError), error:
1316
logger.warning("GnuTLS bye failed")
802
for c in self.server.clients:
803
if c.fingerprint == fpr:
807
ipc.write(u"NOTFOUND %s\n" % fpr)
810
# Have to check if client.still_valid(), since it is
811
# possible that the client timed out while establishing
812
# the GnuTLS session.
813
if not client.still_valid():
814
ipc.write(u"INVALID %s\n" % client.name)
817
ipc.write(u"SENDING %s\n" % client.name)
819
while sent_size < len(client.secret):
820
sent = session.send(client.secret[sent_size:])
821
logger.debug(u"Sent: %d, remaining: %d",
822
sent, len(client.secret)
823
- (sent_size + sent))
1319
828
def peer_certificate(session):
1375
884
# Convert the buffer to a Python bytestring
1376
885
fpr = ctypes.string_at(buf, buf_len.value)
1377
886
# Convert the bytestring to hexadecimal notation
1378
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
887
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1382
class MultiprocessingMixIn(object):
1383
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1384
def sub_process_main(self, request, address):
1386
self.finish_request(request, address)
1388
self.handle_error(request, address)
1389
self.close_request(request)
1391
def process_request(self, request, address):
1392
"""Start a new process to process the request."""
1393
multiprocessing.Process(target = self.sub_process_main,
1394
args = (request, address)).start()
1396
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1397
""" adds a pipe to the MixIn """
891
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
892
"""Like socketserver.ForkingMixIn, but also pass a pipe.
894
Assumes a gobject.MainLoop event loop.
1398
896
def process_request(self, request, client_address):
1399
897
"""Overrides and wraps the original process_request().
1401
This function creates a new pipe in self.pipe
899
This function creates a new pipe in self.pipe
1403
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1405
super(MultiprocessingMixInWithPipe,
901
self.pipe = os.pipe()
902
super(ForkingMixInWithPipe,
1406
903
self).process_request(request, client_address)
1407
self.child_pipe.close()
1408
self.add_pipe(parent_pipe)
1410
def add_pipe(self, parent_pipe):
904
os.close(self.pipe[1]) # close write end
905
# Call "handle_ipc" for both data and EOF events
906
gobject.io_add_watch(self.pipe[0],
907
gobject.IO_IN | gobject.IO_HUP,
909
def handle_ipc(source, condition):
1411
910
"""Dummy function; override as necessary"""
1412
raise NotImplementedError
1414
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
915
class IPv6_TCPServer(ForkingMixInWithPipe,
1415
916
socketserver.TCPServer, object):
1416
917
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1472
972
# if_nametoindex
1473
973
# (self.interface))
1474
974
return socketserver.TCPServer.server_bind(self)
1477
class MandosServer(IPv6_TCPServer):
1481
clients: set of Client objects
1482
gnutls_priority GnuTLS priority string
1483
use_dbus: Boolean; to emit D-Bus signals or not
1485
Assumes a gobject.MainLoop event loop.
1487
def __init__(self, server_address, RequestHandlerClass,
1488
interface=None, use_ipv6=True, clients=None,
1489
gnutls_priority=None, use_dbus=True):
1490
self.enabled = False
1491
self.clients = clients
1492
if self.clients is None:
1493
self.clients = set()
1494
self.use_dbus = use_dbus
1495
self.gnutls_priority = gnutls_priority
1496
IPv6_TCPServer.__init__(self, server_address,
1497
RequestHandlerClass,
1498
interface = interface,
1499
use_ipv6 = use_ipv6)
1500
975
def server_activate(self):
1501
976
if self.enabled:
1502
977
return socketserver.TCPServer.server_activate(self)
1503
978
def enable(self):
1504
979
self.enabled = True
1505
def add_pipe(self, parent_pipe):
1506
# Call "handle_ipc" for both data and EOF events
1507
gobject.io_add_watch(parent_pipe.fileno(),
1508
gobject.IO_IN | gobject.IO_HUP,
1509
functools.partial(self.handle_ipc,
1510
parent_pipe = parent_pipe))
1512
def handle_ipc(self, source, condition, parent_pipe=None,
1513
client_object=None):
980
def handle_ipc(self, source, condition, file_objects={}):
1514
981
condition_names = {
1515
gobject.IO_IN: "IN", # There is data to read.
1516
gobject.IO_OUT: "OUT", # Data can be written (without
982
gobject.IO_IN: u"IN", # There is data to read.
983
gobject.IO_OUT: u"OUT", # Data can be written (without
1518
gobject.IO_PRI: "PRI", # There is urgent data to read.
1519
gobject.IO_ERR: "ERR", # Error condition.
1520
gobject.IO_HUP: "HUP" # Hung up (the connection has been
985
gobject.IO_PRI: u"PRI", # There is urgent data to read.
986
gobject.IO_ERR: u"ERR", # Error condition.
987
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1521
988
# broken, usually for pipes and
1525
992
for cond, name in
1526
993
condition_names.iteritems()
1527
994
if cond & condition)
1528
# error or the other end of multiprocessing.Pipe has closed
1529
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1532
# Read a request from the child
1533
request = parent_pipe.recv()
1534
command = request[0]
1536
if command == 'init':
1538
address = request[2]
1540
for c in self.clients:
1541
if c.fingerprint == fpr:
1545
logger.warning("Client not found for fingerprint: %s, ad"
1546
"dress: %s", fpr, address)
1549
mandos_dbus_service.ClientNotFound(fpr, address[0])
1550
parent_pipe.send(False)
1553
gobject.io_add_watch(parent_pipe.fileno(),
1554
gobject.IO_IN | gobject.IO_HUP,
1555
functools.partial(self.handle_ipc,
1556
parent_pipe = parent_pipe,
1557
client_object = client))
1558
parent_pipe.send(True)
1559
# remove the old hook in favor of the new above hook on same fileno
1561
if command == 'funcall':
1562
funcname = request[1]
1566
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1568
if command == 'getattr':
1569
attrname = request[1]
1570
if callable(client_object.__getattribute__(attrname)):
1571
parent_pipe.send(('function',))
1573
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1575
if command == 'setattr':
1576
attrname = request[1]
1578
setattr(client_object, attrname, value)
995
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
998
# Turn the pipe file descriptor into a Python file object
999
if source not in file_objects:
1000
file_objects[source] = os.fdopen(source, u"r", 1)
1002
# Read a line from the file object
1003
cmdline = file_objects[source].readline()
1004
if not cmdline: # Empty line means end of file
1005
# close the IPC pipe
1006
file_objects[source].close()
1007
del file_objects[source]
1009
# Stop calling this function
1012
logger.debug(u"IPC command: %r", cmdline)
1014
# Parse and act on command
1015
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1017
if cmd == u"NOTFOUND":
1018
logger.warning(u"Client not found for fingerprint: %s",
1022
mandos_dbus_service.ClientNotFound(args)
1023
elif cmd == u"INVALID":
1024
for client in self.clients:
1025
if client.name == args:
1026
logger.warning(u"Client %s is invalid", args)
1032
logger.error(u"Unknown client %s is invalid", args)
1033
elif cmd == u"SENDING":
1034
for client in self.clients:
1035
if client.name == args:
1036
logger.info(u"Sending secret to %s", client.name)
1040
client.ReceivedSecret()
1043
logger.error(u"Sending secret to unknown client %s",
1046
logger.error(u"Unknown IPC command: %r", cmdline)
1048
# Keep calling this function
1583
1052
def string_to_delta(interval):
1584
1053
"""Parse a string and return a datetime.timedelta
1586
>>> string_to_delta('7d')
1055
>>> string_to_delta(u'7d')
1587
1056
datetime.timedelta(7)
1588
>>> string_to_delta('60s')
1057
>>> string_to_delta(u'60s')
1589
1058
datetime.timedelta(0, 60)
1590
>>> string_to_delta('60m')
1059
>>> string_to_delta(u'60m')
1591
1060
datetime.timedelta(0, 3600)
1592
>>> string_to_delta('24h')
1061
>>> string_to_delta(u'24h')
1593
1062
datetime.timedelta(1)
1594
>>> string_to_delta('1w')
1063
>>> string_to_delta(u'1w')
1595
1064
datetime.timedelta(7)
1596
>>> string_to_delta('5m 30s')
1065
>>> string_to_delta(u'5m 30s')
1597
1066
datetime.timedelta(0, 330)
1599
1068
timevalue = datetime.timedelta(0)
1673
##################################################################
1141
######################################################################
1674
1142
# Parsing of options, both command line and config file
1676
1144
parser = optparse.OptionParser(version = "%%prog %s" % version)
1677
parser.add_option("-i", "--interface", type="string",
1678
metavar="IF", help="Bind to interface IF")
1679
parser.add_option("-a", "--address", type="string",
1680
help="Address to listen for requests on")
1681
parser.add_option("-p", "--port", type="int",
1682
help="Port number to receive requests on")
1683
parser.add_option("--check", action="store_true",
1684
help="Run self-test")
1685
parser.add_option("--debug", action="store_true",
1686
help="Debug mode; run in foreground and log to"
1688
parser.add_option("--debuglevel", type="string", metavar="LEVEL",
1689
help="Debug level for stdout output")
1690
parser.add_option("--priority", type="string", help="GnuTLS"
1691
" priority string (see GnuTLS documentation)")
1692
parser.add_option("--servicename", type="string",
1693
metavar="NAME", help="Zeroconf service name")
1694
parser.add_option("--configdir", type="string",
1695
default="/etc/mandos", metavar="DIR",
1696
help="Directory to search for configuration"
1698
parser.add_option("--no-dbus", action="store_false",
1699
dest="use_dbus", help="Do not provide D-Bus"
1700
" system bus interface")
1701
parser.add_option("--no-ipv6", action="store_false",
1702
dest="use_ipv6", help="Do not use IPv6")
1145
parser.add_option("-i", u"--interface", type=u"string",
1146
metavar="IF", help=u"Bind to interface IF")
1147
parser.add_option("-a", u"--address", type=u"string",
1148
help=u"Address to listen for requests on")
1149
parser.add_option("-p", u"--port", type=u"int",
1150
help=u"Port number to receive requests on")
1151
parser.add_option("--check", action=u"store_true",
1152
help=u"Run self-test")
1153
parser.add_option("--debug", action=u"store_true",
1154
help=u"Debug mode; run in foreground and log to"
1156
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1157
u" priority string (see GnuTLS documentation)")
1158
parser.add_option("--servicename", type=u"string",
1159
metavar=u"NAME", help=u"Zeroconf service name")
1160
parser.add_option("--configdir", type=u"string",
1161
default=u"/etc/mandos", metavar=u"DIR",
1162
help=u"Directory to search for configuration"
1164
parser.add_option("--no-dbus", action=u"store_false",
1165
dest=u"use_dbus", help=u"Do not provide D-Bus"
1166
u" system bus interface")
1167
parser.add_option("--no-ipv6", action=u"store_false",
1168
dest=u"use_ipv6", help=u"Do not use IPv6")
1703
1169
options = parser.parse_args()[0]
1705
1171
if options.check:
1710
1176
# Default values for config file for server-global settings
1711
server_defaults = { "interface": "",
1716
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1717
"servicename": "Mandos",
1177
server_defaults = { u"interface": u"",
1182
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1183
u"servicename": u"Mandos",
1184
u"use_dbus": u"True",
1185
u"use_ipv6": u"True",
1723
1188
# Parse config file for server-global settings
1724
1189
server_config = configparser.SafeConfigParser(server_defaults)
1725
1190
del server_defaults
1726
1191
server_config.read(os.path.join(options.configdir,
1728
1193
# Convert the SafeConfigParser object to a dict
1729
1194
server_settings = server_config.defaults()
1730
1195
# Use the appropriate methods on the non-string config options
1731
for option in ("debug", "use_dbus", "use_ipv6"):
1732
server_settings[option] = server_config.getboolean("DEFAULT",
1196
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1197
server_settings[option] = server_config.getboolean(u"DEFAULT",
1734
1199
if server_settings["port"]:
1735
server_settings["port"] = server_config.getint("DEFAULT",
1200
server_settings["port"] = server_config.getint(u"DEFAULT",
1737
1202
del server_config
1739
1204
# Override the settings from the config file with command line
1740
1205
# options, if set.
1741
for option in ("interface", "address", "port", "debug",
1742
"priority", "servicename", "configdir",
1743
"use_dbus", "use_ipv6", "debuglevel"):
1206
for option in (u"interface", u"address", u"port", u"debug",
1207
u"priority", u"servicename", u"configdir",
1208
u"use_dbus", u"use_ipv6"):
1744
1209
value = getattr(options, option)
1745
1210
if value is not None:
1746
1211
server_settings[option] = value
1754
1219
##################################################################
1756
1221
# For convenience
1757
debug = server_settings["debug"]
1758
debuglevel = server_settings["debuglevel"]
1759
use_dbus = server_settings["use_dbus"]
1760
use_ipv6 = server_settings["use_ipv6"]
1762
if server_settings["servicename"] != "Mandos":
1222
debug = server_settings[u"debug"]
1223
use_dbus = server_settings[u"use_dbus"]
1224
use_ipv6 = server_settings[u"use_ipv6"]
1227
syslogger.setLevel(logging.WARNING)
1228
console.setLevel(logging.WARNING)
1230
if server_settings[u"servicename"] != u"Mandos":
1763
1231
syslogger.setFormatter(logging.Formatter
1764
('Mandos (%s) [%%(process)d]:'
1765
' %%(levelname)s: %%(message)s'
1766
% server_settings["servicename"]))
1232
(u'Mandos (%s) [%%(process)d]:'
1233
u' %%(levelname)s: %%(message)s'
1234
% server_settings[u"servicename"]))
1768
1236
# Parse config file with clients
1769
client_defaults = { "timeout": "1h",
1771
"checker": "fping -q -- %%(host)s",
1773
"approval_delay": "0s",
1774
"approval_duration": "1s",
1237
client_defaults = { u"timeout": u"1h",
1239
u"checker": u"fping -q -- %%(host)s",
1776
1242
client_config = configparser.SafeConfigParser(client_defaults)
1777
client_config.read(os.path.join(server_settings["configdir"],
1243
client_config.read(os.path.join(server_settings[u"configdir"],
1780
1246
global mandos_dbus_service
1781
1247
mandos_dbus_service = None
1783
tcp_server = MandosServer((server_settings["address"],
1784
server_settings["port"]),
1786
interface=(server_settings["interface"]
1790
server_settings["priority"],
1793
pidfilename = "/var/run/mandos.pid"
1795
pidfile = open(pidfilename, "w")
1797
logger.error("Could not open file %r", pidfilename)
1250
tcp_server = IPv6_TCPServer((server_settings[u"address"],
1251
server_settings[u"port"]),
1254
server_settings[u"interface"],
1258
server_settings[u"priority"],
1260
pidfilename = u"/var/run/mandos.pid"
1262
pidfile = open(pidfilename, u"w")
1264
logger.error(u"Could not open file %r", pidfilename)
1800
uid = pwd.getpwnam("_mandos").pw_uid
1801
gid = pwd.getpwnam("_mandos").pw_gid
1267
uid = pwd.getpwnam(u"_mandos").pw_uid
1268
gid = pwd.getpwnam(u"_mandos").pw_gid
1802
1269
except KeyError:
1804
uid = pwd.getpwnam("mandos").pw_uid
1805
gid = pwd.getpwnam("mandos").pw_gid
1271
uid = pwd.getpwnam(u"mandos").pw_uid
1272
gid = pwd.getpwnam(u"mandos").pw_gid
1806
1273
except KeyError:
1808
uid = pwd.getpwnam("nobody").pw_uid
1809
gid = pwd.getpwnam("nobody").pw_gid
1275
uid = pwd.getpwnam(u"nobody").pw_uid
1276
gid = pwd.getpwnam(u"nobody").pw_gid
1810
1277
except KeyError:
1817
1284
if error[0] != errno.EPERM:
1820
if not debug and not debuglevel:
1821
syslogger.setLevel(logging.WARNING)
1822
console.setLevel(logging.WARNING)
1824
level = getattr(logging, debuglevel.upper())
1825
syslogger.setLevel(level)
1826
console.setLevel(level)
1287
# Enable all possible GnuTLS debugging
1829
# Enable all possible GnuTLS debugging
1831
1289
# "Use a log level over 10 to enable all debugging options."
1832
1290
# - GnuTLS manual
1833
1291
gnutls.library.functions.gnutls_global_set_log_level(11)
1835
1293
@gnutls.library.types.gnutls_log_func
1836
1294
def debug_gnutls(level, string):
1837
logger.debug("GnuTLS: %s", string[:-1])
1295
logger.debug(u"GnuTLS: %s", string[:-1])
1839
1297
(gnutls.library.functions
1840
1298
.gnutls_global_set_log_function(debug_gnutls))
1842
# Redirect stdin so all checkers get /dev/null
1843
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1844
os.dup2(null, sys.stdin.fileno())
1848
# No console logging
1849
logger.removeHandler(console)
1851
# Need to fork before connecting to D-Bus
1853
# Close all input and output, do double fork, etc.
1301
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1302
service = AvahiService(name = server_settings[u"servicename"],
1303
servicetype = u"_mandos._tcp",
1304
protocol = protocol)
1305
if server_settings["interface"]:
1306
service.interface = (if_nametoindex
1307
(str(server_settings[u"interface"])))
1856
1309
global main_loop
1857
1311
# From the Avahi example code
1858
1312
DBusGMainLoop(set_as_default=True )
1859
1313
main_loop = gobject.MainLoop()
1860
1314
bus = dbus.SystemBus()
1861
1315
# End of Avahi example code
1864
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1865
bus, do_not_queue=True)
1866
except dbus.exceptions.NameExistsException, e:
1867
logger.error(unicode(e) + ", disabling D-Bus")
1869
server_settings["use_dbus"] = False
1870
tcp_server.use_dbus = False
1871
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1872
service = AvahiService(name = server_settings["servicename"],
1873
servicetype = "_mandos._tcp",
1874
protocol = protocol, bus = bus)
1875
if server_settings["interface"]:
1876
service.interface = (if_nametoindex
1877
(str(server_settings["interface"])))
1879
global multiprocessing_manager
1880
multiprocessing_manager = multiprocessing.Manager()
1317
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1882
1319
client_class = Client
1884
client_class = functools.partial(ClientDBus, bus = bus)
1885
def client_config_items(config, section):
1886
special_settings = {
1887
"approved_by_default":
1888
lambda: config.getboolean(section,
1889
"approved_by_default"),
1891
for name, value in config.items(section):
1893
yield (name, special_settings[name]())
1897
tcp_server.clients.update(set(
1321
client_class = ClientDBus
1898
1323
client_class(name = section,
1899
config= dict(client_config_items(
1900
client_config, section)))
1324
config= dict(client_config.items(section)))
1901
1325
for section in client_config.sections()))
1902
if not tcp_server.clients:
1903
logger.warning("No clients defined")
1327
logger.warning(u"No clients defined")
1330
# Redirect stdin so all checkers get /dev/null
1331
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1332
os.dup2(null, sys.stdin.fileno())
1336
# No console logging
1337
logger.removeHandler(console)
1338
# Close all input and output, do double fork, etc.
1342
with closing(pidfile):
1344
pidfile.write(str(pid) + "\n")
1347
logger.error(u"Could not write to file %r with PID %d",
1350
# "pidfile" was never created
1355
"Cleanup function; run on exit"
1359
client = clients.pop()
1360
client.disable_hook = None
1363
atexit.register(cleanup)
1909
pidfile.write(str(pid) + "\n".encode("utf-8"))
1912
logger.error("Could not write to file %r with PID %d",
1915
# "pidfile" was never created
1919
1366
signal.signal(signal.SIGINT, signal.SIG_IGN)
1921
1367
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1922
1368
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1925
1371
class MandosDBusService(dbus.service.Object):
1926
1372
"""A D-Bus proxy object"""
1927
1373
def __init__(self):
1928
dbus.service.Object.__init__(self, bus, "/")
1929
_interface = "se.bsnet.fukt.Mandos"
1931
@dbus.service.signal(_interface, signature="o")
1932
def ClientAdded(self, objpath):
1936
@dbus.service.signal(_interface, signature="ss")
1937
def ClientNotFound(self, fingerprint, address):
1941
@dbus.service.signal(_interface, signature="os")
1374
dbus.service.Object.__init__(self, bus, u"/")
1375
_interface = u"se.bsnet.fukt.Mandos"
1377
@dbus.service.signal(_interface, signature=u"oa{sv}")
1378
def ClientAdded(self, objpath, properties):
1382
@dbus.service.signal(_interface, signature=u"s")
1383
def ClientNotFound(self, fingerprint):
1387
@dbus.service.signal(_interface, signature=u"os")
1942
1388
def ClientRemoved(self, objpath, name):
1946
@dbus.service.method(_interface, out_signature="ao")
1392
@dbus.service.method(_interface, out_signature=u"ao")
1947
1393
def GetAllClients(self):
1949
return dbus.Array(c.dbus_object_path
1950
for c in tcp_server.clients)
1395
return dbus.Array(c.dbus_object_path for c in clients)
1952
1397
@dbus.service.method(_interface,
1953
out_signature="a{oa{sv}}")
1398
out_signature=u"a{oa{sv}}")
1954
1399
def GetAllClientsWithProperties(self):
1956
1401
return dbus.Dictionary(
1957
((c.dbus_object_path, c.GetAll(""))
1958
for c in tcp_server.clients),
1402
((c.dbus_object_path, c.GetAllProperties())
1404
signature=u"oa{sv}")
1961
@dbus.service.method(_interface, in_signature="o")
1406
@dbus.service.method(_interface, in_signature=u"o")
1962
1407
def RemoveClient(self, object_path):
1964
for c in tcp_server.clients:
1965
1410
if c.dbus_object_path == object_path:
1966
tcp_server.clients.remove(c)
1967
1412
c.remove_from_connection()
1968
1413
# Don't signal anything except ClientRemoved
1969
c.disable(quiet=True)
1414
c.disable(signal=False)
1970
1415
# Emit D-Bus signal
1971
1416
self.ClientRemoved(object_path, c.name)
1973
raise KeyError(object_path)
1977
1422
mandos_dbus_service = MandosDBusService()
1980
"Cleanup function; run on exit"
1983
while tcp_server.clients:
1984
client = tcp_server.clients.pop()
1986
client.remove_from_connection()
1987
client.disable_hook = None
1988
# Don't signal anything except ClientRemoved
1989
client.disable(quiet=True)
1992
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1995
atexit.register(cleanup)
1997
for client in tcp_server.clients:
1424
for client in clients:
1999
1426
# Emit D-Bus signal
2000
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1427
mandos_dbus_service.ClientAdded(client.dbus_object_path,
1428
client.GetAllProperties())
2001
1429
client.enable()
2003
1431
tcp_server.enable()