148
126
self.rename_count = 0
149
127
self.max_renames = max_renames
150
128
self.protocol = protocol
151
self.group = None # our entry group
154
129
def rename(self):
155
130
"""Derived from the Avahi example code"""
156
131
if self.rename_count >= self.max_renames:
157
logger.critical("No suitable Zeroconf service name found"
158
" after %i retries, exiting.",
132
logger.critical(u"No suitable Zeroconf service name found"
133
u" after %i retries, exiting.",
159
134
self.rename_count)
160
raise AvahiServiceError("Too many renames")
161
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
162
logger.info("Changing Zeroconf service name to %r ...",
135
raise AvahiServiceError(u"Too many renames")
136
self.name = server.GetAlternativeServiceName(self.name)
137
logger.info(u"Changing Zeroconf service name to %r ...",
164
139
syslogger.setFormatter(logging.Formatter
165
140
('Mandos (%s) [%%(process)d]:'
166
141
' %%(levelname)s: %%(message)s'
171
except dbus.exceptions.DBusException, error:
172
logger.critical("DBusException: %s", error)
175
145
self.rename_count += 1
176
146
def remove(self):
177
147
"""Derived from the Avahi example code"""
178
if self.group is not None:
148
if group is not None:
181
151
"""Derived from the Avahi example code"""
182
if self.group is None:
183
self.group = dbus.Interface(
184
self.bus.get_object(avahi.DBUS_NAME,
185
self.server.EntryGroupNew()),
186
avahi.DBUS_INTERFACE_ENTRY_GROUP)
187
self.group.connect_to_signal('StateChanged',
189
.entry_group_state_changed)
190
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
191
self.name, self.type)
192
self.group.AddService(
195
dbus.UInt32(0), # flags
196
self.name, self.type,
197
self.domain, self.host,
198
dbus.UInt16(self.port),
199
avahi.string_array_to_txt_array(self.TXT))
201
def entry_group_state_changed(self, state, error):
202
"""Derived from the Avahi example code"""
203
logger.debug("Avahi entry group state change: %i", state)
205
if state == avahi.ENTRY_GROUP_ESTABLISHED:
206
logger.debug("Zeroconf service established.")
207
elif state == avahi.ENTRY_GROUP_COLLISION:
208
logger.info("Zeroconf service name collision.")
210
elif state == avahi.ENTRY_GROUP_FAILURE:
211
logger.critical("Avahi: Error in group state changed %s",
213
raise AvahiGroupError("State changed: %s"
216
"""Derived from the Avahi example code"""
217
if self.group is not None:
220
def server_state_changed(self, state):
221
"""Derived from the Avahi example code"""
222
logger.debug("Avahi server state change: %i", state)
223
if state == avahi.SERVER_COLLISION:
224
logger.error("Zeroconf server name collision")
226
elif state == avahi.SERVER_RUNNING:
229
"""Derived from the Avahi example code"""
230
if self.server is None:
231
self.server = dbus.Interface(
232
self.bus.get_object(avahi.DBUS_NAME,
233
avahi.DBUS_PATH_SERVER),
234
avahi.DBUS_INTERFACE_SERVER)
235
self.server.connect_to_signal("StateChanged",
236
self.server_state_changed)
237
self.server_state_changed(self.server.GetState())
154
group = dbus.Interface(bus.get_object
156
server.EntryGroupNew()),
157
avahi.DBUS_INTERFACE_ENTRY_GROUP)
158
group.connect_to_signal('StateChanged',
159
entry_group_state_changed)
160
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
161
service.name, service.type)
163
self.interface, # interface
164
self.protocol, # protocol
165
dbus.UInt32(0), # flags
166
self.name, self.type,
167
self.domain, self.host,
168
dbus.UInt16(self.port),
169
avahi.string_array_to_txt_array(self.TXT))
172
# From the Avahi example code:
173
group = None # our entry group
174
# End of Avahi example code
177
def _datetime_to_dbus(dt, variant_level=0):
178
"""Convert a UTC datetime.datetime() to a D-Bus type."""
179
return dbus.String(dt.isoformat(), variant_level=variant_level)
240
182
class Client(object):
241
183
"""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
185
name: string; from the config file, used in log messages and
187
fingerprint: string (40 or 32 hexadecimal digits); used to
188
uniquely identify the client
189
secret: bytestring; sent verbatim (over TLS) to client
190
host: string; available for use by the checker command
191
created: datetime.datetime(); (UTC) object creation
192
last_enabled: datetime.datetime(); (UTC)
194
last_checked_ok: datetime.datetime(); (UTC) or None
195
timeout: datetime.timedelta(); How long from last_checked_ok
196
until this client is invalid
197
interval: datetime.timedelta(); How often to start a new checker
198
disable_hook: If set, called by disable() as disable_hook(self)
247
199
checker: subprocess.Popen(); a running checker process used
248
200
to see if the client lives.
249
201
'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
202
checker_initiator_tag: a gobject event source tag, or None
203
disable_initiator_tag: - '' -
204
checker_callback_tag: - '' -
205
checker_command: string; External command which is run to check if
206
client lives. %() expansions are done at
253
207
runtime with vars(self) as dict, so that for
254
208
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
209
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))
288
211
def timeout_milliseconds(self):
289
212
"Return the 'timeout' attribute in milliseconds"
290
return self._timedelta_to_milliseconds(self.timeout)
213
return ((self.timeout.days * 24 * 60 * 60 * 1000)
214
+ (self.timeout.seconds * 1000)
215
+ (self.timeout.microseconds // 1000))
292
217
def interval_milliseconds(self):
293
218
"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)
219
return ((self.interval.days * 24 * 60 * 60 * 1000)
220
+ (self.interval.seconds * 1000)
221
+ (self.interval.microseconds // 1000))
299
223
def __init__(self, name = None, disable_hook=None, config=None):
300
224
"""Note: the 'checker' key in 'config' sets the
510
397
self.checker_callback_tag = None
511
398
if getattr(self, "checker", None) is None:
513
logger.debug("Stopping checker for %(name)s", vars(self))
400
logger.debug(u"Stopping checker for %(name)s", vars(self))
515
402
os.kill(self.checker.pid, signal.SIGTERM)
517
404
#if self.checker.poll() is None:
518
405
# os.kill(self.checker.pid, signal.SIGKILL)
519
406
except OSError, error:
520
407
if error.errno != errno.ESRCH: # No such process
522
409
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):
411
def still_valid(self):
412
"""Has the timeout not yet passed for this client?"""
413
if not getattr(self, "enabled", False):
415
now = datetime.datetime.utcnow()
416
if self.last_checked_ok is None:
417
return now < (self.created + self.timeout)
419
return now < (self.last_checked_ok + self.timeout)
422
class ClientDBus(Client, dbus.service.Object):
714
423
"""A Client class using D-Bus
717
dbus_object_path: dbus.ObjectPath
718
bus: dbus.SystemBus()
425
dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
721
runtime_expansions = (Client.runtime_expansions
722
+ ("dbus_object_path",))
724
427
# 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
429
def __init__(self, *args, **kwargs):
729
430
Client.__init__(self, *args, **kwargs)
730
431
# Only now, when this client is initialized, can it show up on
732
client_object_name = unicode(self.name).translate(
735
433
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
757
def _datetime_to_dbus(dt, variant_level=0):
758
"""Convert a UTC datetime.datetime() to a D-Bus type."""
759
return dbus.String(dt.isoformat(),
760
variant_level=variant_level)
435
+ self.name.replace(".", "_")))
436
dbus.service.Object.__init__(self, bus,
437
self.dbus_object_path)
762
438
def enable(self):
763
439
oldstate = getattr(self, "enabled", False)
764
440
r = Client.enable(self)
765
441
if oldstate != self.enabled:
766
442
# Emit D-Bus signals
767
self.PropertyChanged(dbus.String("Enabled"),
443
self.PropertyChanged(dbus.String(u"enabled"),
768
444
dbus.Boolean(True, variant_level=1))
769
self.PropertyChanged(
770
dbus.String("LastEnabled"),
771
self._datetime_to_dbus(self.last_enabled,
445
self.PropertyChanged(dbus.String(u"last_enabled"),
446
(_datetime_to_dbus(self.last_enabled,
775
def disable(self, quiet = False):
450
def disable(self, signal = True):
776
451
oldstate = getattr(self, "enabled", False)
777
r = Client.disable(self, quiet=quiet)
778
if not quiet and oldstate != self.enabled:
452
r = Client.disable(self)
453
if signal and oldstate != self.enabled:
779
454
# Emit D-Bus signal
780
self.PropertyChanged(dbus.String("Enabled"),
455
self.PropertyChanged(dbus.String(u"enabled"),
781
456
dbus.Boolean(False, variant_level=1))
544
# GetAllProperties - method
545
@dbus.service.method(_interface, out_signature="a{sv}")
546
def GetAllProperties(self):
548
return dbus.Dictionary({
550
dbus.String(self.name, variant_level=1),
551
dbus.String("fingerprint"):
552
dbus.String(self.fingerprint, variant_level=1),
554
dbus.String(self.host, variant_level=1),
555
dbus.String("created"):
556
_datetime_to_dbus(self.created, variant_level=1),
557
dbus.String("last_enabled"):
558
(_datetime_to_dbus(self.last_enabled,
560
if self.last_enabled is not None
561
else dbus.Boolean(False, variant_level=1)),
562
dbus.String("enabled"):
563
dbus.Boolean(self.enabled, variant_level=1),
564
dbus.String("last_checked_ok"):
565
(_datetime_to_dbus(self.last_checked_ok,
567
if self.last_checked_ok is not None
568
else dbus.Boolean (False, variant_level=1)),
569
dbus.String("timeout"):
570
dbus.UInt64(self.timeout_milliseconds(),
572
dbus.String("interval"):
573
dbus.UInt64(self.interval_milliseconds(),
575
dbus.String("checker"):
576
dbus.String(self.checker_command,
578
dbus.String("checker_running"):
579
dbus.Boolean(self.checker is not None,
581
dbus.String("object_path"):
582
dbus.ObjectPath(self.dbus_object_path,
586
# IsStillValid - method
587
@dbus.service.method(_interface, out_signature="b")
588
def IsStillValid(self):
589
return self.still_valid()
888
591
# PropertyChanged - signal
889
592
@dbus.service.signal(_interface, signature="sv")
890
593
def PropertyChanged(self, property, value):
597
# ReceivedSecret - signal
895
598
@dbus.service.signal(_interface)
898
Is sent after a successful transfer of secret from the Mandos
899
server to mandos-client
599
def ReceivedSecret(self):
903
603
# Rejected - signal
904
@dbus.service.signal(_interface, signature="s")
905
def Rejected(self, reason):
604
@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()
609
# SetChecker - method
610
@dbus.service.method(_interface, in_signature="s")
611
def SetChecker(self, checker):
612
"D-Bus setter method"
613
self.checker_command = checker
615
self.PropertyChanged(dbus.String(u"checker"),
616
dbus.String(self.checker_command,
620
@dbus.service.method(_interface, in_signature="s")
621
def SetHost(self, host):
622
"D-Bus setter method"
625
self.PropertyChanged(dbus.String(u"host"),
626
dbus.String(self.host, variant_level=1))
628
# SetInterval - method
629
@dbus.service.method(_interface, in_signature="t")
630
def SetInterval(self, milliseconds):
631
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
633
self.PropertyChanged(dbus.String(u"interval"),
634
(dbus.UInt64(self.interval_milliseconds(),
638
@dbus.service.method(_interface, in_signature="ay",
640
def SetSecret(self, secret):
641
"D-Bus setter method"
642
self.secret = str(secret)
644
# SetTimeout - method
645
@dbus.service.method(_interface, in_signature="t")
646
def SetTimeout(self, milliseconds):
647
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
649
self.PropertyChanged(dbus.String(u"timeout"),
650
(dbus.UInt64(self.timeout_milliseconds(),
927
653
# Enable - method
928
@dbus.service.method(_interface)
654
Enable = dbus.service.method(_interface)(enable)
655
Enable.__name__ = "Enable"
933
657
# StartChecker - method
934
658
@dbus.service.method(_interface)
945
669
# StopChecker - method
946
@dbus.service.method(_interface)
947
def StopChecker(self):
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)
670
StopChecker = dbus.service.method(_interface)(stop_checker)
671
StopChecker.__name__ = "StopChecker"
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
class ClientHandler(socketserver.BaseRequestHandler, object):
1166
"""A class to handle client connections.
1168
Instantiated once for each connection to handle it.
676
class TCP_handler(SocketServer.BaseRequestHandler, object):
677
"""A TCP request handler class.
678
Instantiated by IPv6_TCPServer for each request to handle it.
1169
679
Note: This will run in its own forked process."""
1171
681
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())
682
logger.info(u"TCP connection from: %s",
683
unicode(self.client_address))
684
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
685
# Open IPC pipe to parent process
686
with closing(os.fdopen(self.server.pipe[1], "w", 1)) as ipc:
1178
687
session = (gnutls.connection
1179
688
.ClientSession(self.request,
1180
689
gnutls.connection
1181
690
.X509Credentials()))
692
line = self.request.makefile().readline()
693
logger.debug(u"Protocol version: %r", line)
695
if int(line.strip().split()[0]) > 1:
697
except (ValueError, IndexError, RuntimeError), error:
698
logger.error(u"Unknown protocol version: %s", error)
1183
701
# Note: gnutls.connection.X509Credentials is really a
1184
702
# generic GnuTLS certificate credentials object so long as
1185
703
# no X.509 keys are added to it. Therefore, we can use it
1186
704
# here despite using OpenPGP certificates.
1188
706
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1189
# "+AES-256-CBC", "+SHA1",
1190
# "+COMP-NULL", "+CTYPE-OPENPGP",
707
# "+AES-256-CBC", "+SHA1",
708
# "+COMP-NULL", "+CTYPE-OPENPGP",
1192
710
# Use a fallback default, since this MUST be set.
1193
priority = self.server.gnutls_priority
1194
if priority is None:
711
priority = self.server.settings.get("priority", "NORMAL")
1196
712
(gnutls.library.functions
1197
713
.gnutls_priority_set_direct(session._c_object,
1198
714
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
717
session.handshake()
1214
718
except gnutls.errors.GNUTLSError, error:
1215
logger.warning("Handshake failed: %s", error)
719
logger.warning(u"Handshake failed: %s", error)
1216
720
# Do not run session.bye() here: the session is not
1217
721
# established. Just abandon the request.
1219
logger.debug("Handshake succeeded")
1221
approval_required = False
723
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:
725
fpr = self.fingerprint(self.peer_certificate(session))
726
except (TypeError, gnutls.errors.GNUTLSError), error:
727
logger.warning(u"Bad certificate: %s", error)
730
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")
732
for c in self.server.clients:
733
if c.fingerprint == fpr:
737
ipc.write("NOTFOUND %s\n" % fpr)
740
# Have to check if client.still_valid(), since it is
741
# possible that the client timed out while establishing
742
# the GnuTLS session.
743
if not client.still_valid():
744
ipc.write("INVALID %s\n" % client.name)
747
ipc.write("SENDING %s\n" % client.name)
749
while sent_size < len(client.secret):
750
sent = session.send(client.secret[sent_size:])
751
logger.debug(u"Sent: %d, remaining: %d",
752
sent, len(client.secret)
753
- (sent_size + sent))
1319
758
def peer_certificate(session):
1375
814
# Convert the buffer to a Python bytestring
1376
815
fpr = ctypes.string_at(buf, buf_len.value)
1377
816
# Convert the bytestring to hexadecimal notation
1378
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
817
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 """
821
class ForkingMixInWithPipe(SocketServer.ForkingMixIn, object):
822
"""Like SocketServer.ForkingMixIn, but also pass a pipe.
823
Assumes a gobject.MainLoop event loop.
1398
825
def process_request(self, request, client_address):
1399
"""Overrides and wraps the original process_request().
1401
This function creates a new pipe in self.pipe
826
"""This overrides and wraps the original process_request().
827
This function creates a new pipe in self.pipe
1403
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1405
super(MultiprocessingMixInWithPipe,
829
self.pipe = os.pipe()
830
super(ForkingMixInWithPipe,
1406
831
self).process_request(request, client_address)
1407
self.child_pipe.close()
1408
self.add_pipe(parent_pipe)
1410
def add_pipe(self, parent_pipe):
832
os.close(self.pipe[1]) # close write end
833
# Call "handle_ipc" for both data and EOF events
834
gobject.io_add_watch(self.pipe[0],
835
gobject.IO_IN | gobject.IO_HUP,
837
def handle_ipc(source, condition):
1411
838
"""Dummy function; override as necessary"""
1412
raise NotImplementedError
1414
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1415
socketserver.TCPServer, object):
843
class IPv6_TCPServer(ForkingMixInWithPipe,
844
SocketServer.TCPServer, object):
1416
845
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
847
settings: Server settings
848
clients: Set() of Client objects
1419
849
enabled: Boolean; whether this server is activated yet
1420
interface: None or a network interface name (string)
1421
use_ipv6: Boolean; to use IPv6 or not
1423
def __init__(self, server_address, RequestHandlerClass,
1424
interface=None, use_ipv6=True):
1425
self.interface = interface
1427
self.address_family = socket.AF_INET6
1428
socketserver.TCPServer.__init__(self, server_address,
1429
RequestHandlerClass)
851
address_family = socket.AF_INET6
852
def __init__(self, *args, **kwargs):
853
if "settings" in kwargs:
854
self.settings = kwargs["settings"]
855
del kwargs["settings"]
856
if "clients" in kwargs:
857
self.clients = kwargs["clients"]
858
del kwargs["clients"]
859
if "use_ipv6" in kwargs:
860
if not kwargs["use_ipv6"]:
861
self.address_family = socket.AF_INET
862
del kwargs["use_ipv6"]
864
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
1430
865
def server_bind(self):
1431
866
"""This overrides the normal server_bind() function
1432
867
to bind to an interface if one was specified, and also NOT to
1433
868
bind to an address or port if they were not specified."""
1434
if self.interface is not None:
1435
if SO_BINDTODEVICE is None:
1436
logger.error("SO_BINDTODEVICE does not exist;"
1437
" cannot bind to interface %s",
1441
self.socket.setsockopt(socket.SOL_SOCKET,
1445
except socket.error, error:
1446
if error[0] == errno.EPERM:
1447
logger.error("No permission to"
1448
" bind to interface %s",
1450
elif error[0] == errno.ENOPROTOOPT:
1451
logger.error("SO_BINDTODEVICE not available;"
1452
" cannot bind to interface %s",
869
if self.settings["interface"]:
870
# 25 is from /usr/include/asm-i486/socket.h
871
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
873
self.socket.setsockopt(socket.SOL_SOCKET,
875
self.settings["interface"])
876
except socket.error, error:
877
if error[0] == errno.EPERM:
878
logger.error(u"No permission to"
879
u" bind to interface %s",
880
self.settings["interface"])
1456
883
# Only bind(2) the socket if we really need to.
1457
884
if self.server_address[0] or self.server_address[1]:
1458
885
if not self.server_address[0]:
1465
892
elif not self.server_address[1]:
1466
893
self.server_address = (self.server_address[0],
1468
# if self.interface:
895
# if self.settings["interface"]:
1469
896
# self.server_address = (self.server_address[0],
1472
899
# if_nametoindex
1474
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)
902
return super(IPv6_TCPServer, self).server_bind()
1500
903
def server_activate(self):
1501
904
if self.enabled:
1502
return socketserver.TCPServer.server_activate(self)
905
return super(IPv6_TCPServer, self).server_activate()
1503
906
def enable(self):
1504
907
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):
908
def handle_ipc(self, source, condition, file_objects={}):
1514
909
condition_names = {
1515
gobject.IO_IN: "IN", # There is data to read.
910
gobject.IO_IN: "IN", # There is data to read.
1516
911
gobject.IO_OUT: "OUT", # Data can be written (without
1518
913
gobject.IO_PRI: "PRI", # There is urgent data to read.
1519
914
gobject.IO_ERR: "ERR", # Error condition.
1520
915
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1521
# broken, usually for pipes and
916
# broken, usually for pipes and
1524
919
conditions_string = ' | '.join(name
1525
920
for cond, name in
1526
921
condition_names.iteritems()
1527
922
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)
923
logger.debug("Handling IPC: FD = %d, condition = %s", source,
926
# Turn the pipe file descriptor into a Python file object
927
if source not in file_objects:
928
file_objects[source] = os.fdopen(source, "r", 1)
930
# Read a line from the file object
931
cmdline = file_objects[source].readline()
932
if not cmdline: # Empty line means end of file
934
file_objects[source].close()
935
del file_objects[source]
937
# Stop calling this function
940
logger.debug("IPC command: %r", cmdline)
942
# Parse and act on command
943
cmd, args = cmdline.rstrip("\r\n").split(None, 1)
945
if cmd == "NOTFOUND":
946
logger.warning(u"Client not found for fingerprint: %s",
948
if self.settings["use_dbus"]:
950
mandos_dbus_service.ClientNotFound(args)
951
elif cmd == "INVALID":
952
for client in self.clients:
953
if client.name == args:
954
logger.warning(u"Client %s is invalid", args)
955
if self.settings["use_dbus"]:
960
logger.error(u"Unknown client %s is invalid", args)
961
elif cmd == "SENDING":
962
for client in self.clients:
963
if client.name == args:
964
logger.info(u"Sending secret to %s", client.name)
966
if self.settings["use_dbus"]:
968
client.ReceivedSecret()
971
logger.error(u"Sending secret to unknown client %s",
974
logger.error("Unknown IPC command: %r", cmdline)
976
# Keep calling this function
1602
999
suffix = unicode(s[-1])
1603
1000
value = int(s[:-1])
1605
1002
delta = datetime.timedelta(value)
1003
elif suffix == u"s":
1607
1004
delta = datetime.timedelta(0, value)
1005
elif suffix == u"m":
1609
1006
delta = datetime.timedelta(0, 0, 0, 0, value)
1007
elif suffix == u"h":
1611
1008
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1009
elif suffix == u"w":
1613
1010
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1615
raise ValueError("Unknown suffix %r" % suffix)
1616
except (ValueError, IndexError), e:
1617
raise ValueError(*(e.args))
1013
except (ValueError, IndexError):
1618
1015
timevalue += delta
1619
1016
return timevalue
1019
def server_state_changed(state):
1020
"""Derived from the Avahi example code"""
1021
if state == avahi.SERVER_COLLISION:
1022
logger.error(u"Zeroconf server name collision")
1024
elif state == avahi.SERVER_RUNNING:
1028
def entry_group_state_changed(state, error):
1029
"""Derived from the Avahi example code"""
1030
logger.debug(u"Avahi state change: %i", state)
1032
if state == avahi.ENTRY_GROUP_ESTABLISHED:
1033
logger.debug(u"Zeroconf service established.")
1034
elif state == avahi.ENTRY_GROUP_COLLISION:
1035
logger.warning(u"Zeroconf service name collision.")
1037
elif state == avahi.ENTRY_GROUP_FAILURE:
1038
logger.critical(u"Avahi: Error in group state changed %s",
1040
raise AvahiGroupError(u"State changed: %s" % unicode(error))
1622
1042
def if_nametoindex(interface):
1623
"""Call the C function if_nametoindex(), or equivalent
1625
Note: This function cannot accept a unicode string."""
1043
"""Call the C function if_nametoindex(), or equivalent"""
1626
1044
global if_nametoindex
1628
1046
if_nametoindex = (ctypes.cdll.LoadLibrary
1629
1047
(ctypes.util.find_library("c"))
1630
1048
.if_nametoindex)
1631
1049
except (OSError, AttributeError):
1632
logger.warning("Doing if_nametoindex the hard way")
1050
if "struct" not in sys.modules:
1052
if "fcntl" not in sys.modules:
1633
1054
def if_nametoindex(interface):
1634
1055
"Get an interface index the hard way, i.e. using fcntl()"
1635
1056
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1636
with contextlib.closing(socket.socket()) as s:
1057
with closing(socket.socket()) as s:
1637
1058
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1638
struct.pack(str("16s16x"),
1640
interface_index = struct.unpack(str("I"),
1059
struct.pack("16s16x", interface))
1060
interface_index = struct.unpack("I", ifreq[16:20])[0]
1642
1061
return interface_index
1643
1062
return if_nametoindex(interface)
1646
1065
def daemon(nochdir = False, noclose = False):
1647
1066
"""See daemon(3). Standard BSD Unix function.
1649
1067
This should really exist as os.daemon, but it doesn't (yet)."""
1839
1240
(gnutls.library.functions
1840
1241
.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.
1244
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1245
service = AvahiService(name = server_settings["servicename"],
1246
servicetype = "_mandos._tcp",
1247
protocol = protocol)
1248
if server_settings["interface"]:
1249
service.interface = (if_nametoindex
1250
(server_settings["interface"]))
1856
1252
global main_loop
1857
1255
# From the Avahi example code
1858
1256
DBusGMainLoop(set_as_default=True )
1859
1257
main_loop = gobject.MainLoop()
1860
1258
bus = dbus.SystemBus()
1259
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1260
avahi.DBUS_PATH_SERVER),
1261
avahi.DBUS_INTERFACE_SERVER)
1861
1262
# 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()
1264
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1882
1266
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(
1268
client_class = ClientDBus
1898
1270
client_class(name = section,
1899
config= dict(client_config_items(
1900
client_config, section)))
1271
config= dict(client_config.items(section)))
1901
1272
for section in client_config.sections()))
1902
if not tcp_server.clients:
1903
logger.warning("No clients defined")
1274
logger.warning(u"No clients defined")
1277
# Redirect stdin so all checkers get /dev/null
1278
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1279
os.dup2(null, sys.stdin.fileno())
1283
# No console logging
1284
logger.removeHandler(console)
1285
# Close all input and output, do double fork, etc.
1289
with closing(pidfile):
1291
pidfile.write(str(pid) + "\n")
1294
logger.error(u"Could not write to file %r with PID %d",
1297
# "pidfile" was never created
1302
"Cleanup function; run on exit"
1304
# From the Avahi example code
1305
if not group is None:
1308
# End of Avahi example code
1311
client = clients.pop()
1312
client.disable_hook = None
1315
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
1318
signal.signal(signal.SIGINT, signal.SIG_IGN)
1921
1319
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1922
1320
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())