193
419
dbus.UInt16(self.port),
194
420
avahi.string_array_to_txt_array(self.TXT))
195
421
self.group.Commit()
196
423
def entry_group_state_changed(self, state, error):
197
424
"""Derived from the Avahi example code"""
198
logger.debug(u"Avahi state change: %i", state)
425
logger.debug("Avahi entry group state change: %i", state)
200
427
if state == avahi.ENTRY_GROUP_ESTABLISHED:
201
logger.debug(u"Zeroconf service established.")
428
logger.debug("Zeroconf service established.")
202
429
elif state == avahi.ENTRY_GROUP_COLLISION:
203
logger.warning(u"Zeroconf service name collision.")
430
logger.info("Zeroconf service name collision.")
205
432
elif state == avahi.ENTRY_GROUP_FAILURE:
206
logger.critical(u"Avahi: Error in group state changed %s",
208
raise AvahiGroupError(u"State changed: %s"
433
logger.critical("Avahi: Error in group state changed %s",
435
raise AvahiGroupError("State changed: {!s}".format(error))
210
437
def cleanup(self):
211
438
"""Derived from the Avahi example code"""
212
439
if self.group is not None:
442
except (dbus.exceptions.UnknownMethodException,
443
dbus.exceptions.DBusException):
214
445
self.group = None
215
def server_state_changed(self, state):
448
def server_state_changed(self, state, error=None):
216
449
"""Derived from the Avahi example code"""
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
450
logger.debug("Avahi server state change: %i", state)
452
avahi.SERVER_INVALID: "Zeroconf server invalid",
453
avahi.SERVER_REGISTERING: None,
454
avahi.SERVER_COLLISION: "Zeroconf server name collision",
455
avahi.SERVER_FAILURE: "Zeroconf server failure",
457
if state in bad_states:
458
if bad_states[state] is not None:
460
logger.error(bad_states[state])
462
logger.error(bad_states[state] + ": %r", error)
220
464
elif state == avahi.SERVER_RUNNING:
467
except dbus.exceptions.DBusException as error:
468
if (error.get_dbus_name()
469
== "org.freedesktop.Avahi.CollisionError"):
470
logger.info("Local Zeroconf service name"
472
return self.rename(remove=False)
474
logger.critical("D-Bus Exception", exc_info=error)
479
logger.debug("Unknown state: %r", state)
481
logger.debug("Unknown state: %r: %r", state, error)
222
483
def activate(self):
223
484
"""Derived from the Avahi example code"""
224
485
if self.server is None:
225
486
self.server = dbus.Interface(
226
487
self.bus.get_object(avahi.DBUS_NAME,
227
avahi.DBUS_PATH_SERVER),
488
avahi.DBUS_PATH_SERVER,
489
follow_name_owner_changes=True),
228
490
avahi.DBUS_INTERFACE_SERVER)
229
self.server.connect_to_signal(u"StateChanged",
230
self.server_state_changed)
491
self.server.connect_to_signal("StateChanged",
492
self.server_state_changed)
231
493
self.server_state_changed(self.server.GetState())
496
class AvahiServiceToSyslog(AvahiService):
497
def rename(self, *args, **kwargs):
498
"""Add the new name to the syslog messages"""
499
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
500
syslogger.setFormatter(logging.Formatter(
501
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
506
# Pretend that we have a GnuTLS module
507
class GnuTLS(object):
508
"""This isn't so much a class as it is a module-like namespace.
509
It is instantiated once, and simulates having a GnuTLS module."""
511
library = ctypes.util.find_library("gnutls")
513
library = ctypes.util.find_library("gnutls-deb0")
514
_library = ctypes.cdll.LoadLibrary(library)
516
_need_version = b"3.3.0"
519
# Need to use "self" here, since this method is called before
520
# the assignment to the "gnutls" global variable happens.
521
if self.check_version(self._need_version) is None:
522
raise self.Error("Needs GnuTLS {} or later"
523
.format(self._need_version))
525
# Unless otherwise indicated, the constants and types below are
526
# all from the gnutls/gnutls.h C header file.
536
E_NO_CERTIFICATE_FOUND = -49
537
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
540
class session_int(ctypes.Structure):
542
session_t = ctypes.POINTER(session_int)
544
class certificate_credentials_st(ctypes.Structure):
546
certificate_credentials_t = ctypes.POINTER(
547
certificate_credentials_st)
548
certificate_type_t = ctypes.c_int
550
class datum_t(ctypes.Structure):
551
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
552
('size', ctypes.c_uint)]
554
class openpgp_crt_int(ctypes.Structure):
556
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
558
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
559
credentials_type_t = ctypes.c_int
560
transport_ptr_t = ctypes.c_void_p
561
close_request_t = ctypes.c_int
564
class Error(Exception):
565
# We need to use the class name "GnuTLS" here, since this
566
# exception might be raised from within GnuTLS.__init__,
567
# which is called before the assignment to the "gnutls"
568
# global variable has happened.
569
def __init__(self, message=None, code=None, args=()):
570
# Default usage is by a message string, but if a return
571
# code is passed, convert it to a string with
574
if message is None and code is not None:
575
message = GnuTLS.strerror(code)
576
return super(GnuTLS.Error, self).__init__(
579
class CertificateSecurityError(Error):
583
class Credentials(object):
585
self._c_object = gnutls.certificate_credentials_t()
586
gnutls.certificate_allocate_credentials(
587
ctypes.byref(self._c_object))
588
self.type = gnutls.CRD_CERTIFICATE
591
gnutls.certificate_free_credentials(self._c_object)
593
class ClientSession(object):
594
def __init__(self, socket, credentials=None):
595
self._c_object = gnutls.session_t()
596
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
597
gnutls.set_default_priority(self._c_object)
598
gnutls.transport_set_ptr(self._c_object, socket.fileno())
599
gnutls.handshake_set_private_extensions(self._c_object,
602
if credentials is None:
603
credentials = gnutls.Credentials()
604
gnutls.credentials_set(self._c_object, credentials.type,
605
ctypes.cast(credentials._c_object,
607
self.credentials = credentials
610
gnutls.deinit(self._c_object)
613
return gnutls.handshake(self._c_object)
615
def send(self, data):
619
data_len -= gnutls.record_send(self._c_object,
624
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
626
# Error handling functions
627
def _error_code(result):
628
"""A function to raise exceptions on errors, suitable
629
for the 'restype' attribute on ctypes functions"""
632
if result == gnutls.E_NO_CERTIFICATE_FOUND:
633
raise gnutls.CertificateSecurityError(code=result)
634
raise gnutls.Error(code=result)
636
def _retry_on_error(result, func, arguments):
637
"""A function to retry on some errors, suitable
638
for the 'errcheck' attribute on ctypes functions"""
640
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
641
return _error_code(result)
642
result = func(*arguments)
645
# Unless otherwise indicated, the function declarations below are
646
# all from the gnutls/gnutls.h C header file.
649
priority_set_direct = _library.gnutls_priority_set_direct
650
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
651
ctypes.POINTER(ctypes.c_char_p)]
652
priority_set_direct.restype = _error_code
654
init = _library.gnutls_init
655
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
656
init.restype = _error_code
658
set_default_priority = _library.gnutls_set_default_priority
659
set_default_priority.argtypes = [session_t]
660
set_default_priority.restype = _error_code
662
record_send = _library.gnutls_record_send
663
record_send.argtypes = [session_t, ctypes.c_void_p,
665
record_send.restype = ctypes.c_ssize_t
666
record_send.errcheck = _retry_on_error
668
certificate_allocate_credentials = (
669
_library.gnutls_certificate_allocate_credentials)
670
certificate_allocate_credentials.argtypes = [
671
ctypes.POINTER(certificate_credentials_t)]
672
certificate_allocate_credentials.restype = _error_code
674
certificate_free_credentials = (
675
_library.gnutls_certificate_free_credentials)
676
certificate_free_credentials.argtypes = [
677
certificate_credentials_t]
678
certificate_free_credentials.restype = None
680
handshake_set_private_extensions = (
681
_library.gnutls_handshake_set_private_extensions)
682
handshake_set_private_extensions.argtypes = [session_t,
684
handshake_set_private_extensions.restype = None
686
credentials_set = _library.gnutls_credentials_set
687
credentials_set.argtypes = [session_t, credentials_type_t,
689
credentials_set.restype = _error_code
691
strerror = _library.gnutls_strerror
692
strerror.argtypes = [ctypes.c_int]
693
strerror.restype = ctypes.c_char_p
695
certificate_type_get = _library.gnutls_certificate_type_get
696
certificate_type_get.argtypes = [session_t]
697
certificate_type_get.restype = _error_code
699
certificate_get_peers = _library.gnutls_certificate_get_peers
700
certificate_get_peers.argtypes = [session_t,
701
ctypes.POINTER(ctypes.c_uint)]
702
certificate_get_peers.restype = ctypes.POINTER(datum_t)
704
global_set_log_level = _library.gnutls_global_set_log_level
705
global_set_log_level.argtypes = [ctypes.c_int]
706
global_set_log_level.restype = None
708
global_set_log_function = _library.gnutls_global_set_log_function
709
global_set_log_function.argtypes = [log_func]
710
global_set_log_function.restype = None
712
deinit = _library.gnutls_deinit
713
deinit.argtypes = [session_t]
714
deinit.restype = None
716
handshake = _library.gnutls_handshake
717
handshake.argtypes = [session_t]
718
handshake.restype = _error_code
719
handshake.errcheck = _retry_on_error
721
transport_set_ptr = _library.gnutls_transport_set_ptr
722
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
723
transport_set_ptr.restype = None
725
bye = _library.gnutls_bye
726
bye.argtypes = [session_t, close_request_t]
727
bye.restype = _error_code
728
bye.errcheck = _retry_on_error
730
check_version = _library.gnutls_check_version
731
check_version.argtypes = [ctypes.c_char_p]
732
check_version.restype = ctypes.c_char_p
734
# All the function declarations below are from gnutls/openpgp.h
736
openpgp_crt_init = _library.gnutls_openpgp_crt_init
737
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
738
openpgp_crt_init.restype = _error_code
740
openpgp_crt_import = _library.gnutls_openpgp_crt_import
741
openpgp_crt_import.argtypes = [openpgp_crt_t,
742
ctypes.POINTER(datum_t),
744
openpgp_crt_import.restype = _error_code
746
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
747
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
748
ctypes.POINTER(ctypes.c_uint)]
749
openpgp_crt_verify_self.restype = _error_code
751
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
752
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
753
openpgp_crt_deinit.restype = None
755
openpgp_crt_get_fingerprint = (
756
_library.gnutls_openpgp_crt_get_fingerprint)
757
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
761
openpgp_crt_get_fingerprint.restype = _error_code
763
# Remove non-public functions
764
del _error_code, _retry_on_error
765
# Create the global "gnutls" object, simulating a module
769
def call_pipe(connection, # : multiprocessing.Connection
770
func, *args, **kwargs):
771
"""This function is meant to be called by multiprocessing.Process
773
This function runs func(*args, **kwargs), and writes the resulting
774
return value on the provided multiprocessing.Connection.
776
connection.send(func(*args, **kwargs))
234
780
class Client(object):
235
781
"""A representation of a client host served by this server.
238
name: string; from the config file, used in log messages and
784
approved: bool(); 'None' if not yet approved/disapproved
785
approval_delay: datetime.timedelta(); Time to wait for approval
786
approval_duration: datetime.timedelta(); Duration of one approval
787
checker: subprocess.Popen(); a running checker process used
788
to see if the client lives.
789
'None' if no process is running.
790
checker_callback_tag: a GLib event source tag, or None
791
checker_command: string; External command which is run to check
792
if client lives. %() expansions are done at
793
runtime with vars(self) as dict, so that for
794
instance %(name)s can be used in the command.
795
checker_initiator_tag: a GLib event source tag, or None
796
created: datetime.datetime(); (UTC) object creation
797
client_structure: Object describing what attributes a client has
798
and is used for storing the client at exit
799
current_checker_command: string; current running checker_command
800
disable_initiator_tag: a GLib event source tag, or None
240
802
fingerprint: string (40 or 32 hexadecimal digits); used to
241
803
uniquely identify the client
242
secret: bytestring; sent verbatim (over TLS) to client
243
804
host: string; available for use by the checker command
244
created: datetime.datetime(); (UTC) object creation
245
last_enabled: datetime.datetime(); (UTC)
805
interval: datetime.timedelta(); How often to start a new checker
806
last_approval_request: datetime.datetime(); (UTC) or None
247
807
last_checked_ok: datetime.datetime(); (UTC) or None
808
last_checker_status: integer between 0 and 255 reflecting exit
809
status of last checker. -1 reflects crashed
810
checker, -2 means no checker completed yet.
811
last_checker_signal: The signal which killed the last checker, if
812
last_checker_status is -1
813
last_enabled: datetime.datetime(); (UTC) or None
814
name: string; from the config file, used in log messages and
816
secret: bytestring; sent verbatim (over TLS) to client
248
817
timeout: datetime.timedelta(); How long from last_checked_ok
249
818
until this client is disabled
250
interval: datetime.timedelta(); How often to start a new checker
251
disable_hook: If set, called by disable() as disable_hook(self)
252
checker: subprocess.Popen(); a running checker process used
253
to see if the client lives.
254
'None' if no process is running.
255
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
257
checker_callback_tag: - '' -
258
checker_command: string; External command which is run to check if
259
client lives. %() expansions are done at
260
runtime with vars(self) as dict, so that for
261
instance %(name)s can be used in the command.
262
current_checker_command: string; current running checker_command
263
approved_delay: datetime.timedelta(); Time to wait for approval
264
_approved: bool(); 'None' if not yet approved/disapproved
265
approved_duration: datetime.timedelta(); Duration of one approval
819
extended_timeout: extra long timeout when secret has been sent
820
runtime_expansions: Allowed attributes for runtime expansion.
821
expires: datetime.datetime(); time (UTC) when a client will be
823
server_settings: The server_settings dict from main()
826
runtime_expansions = ("approval_delay", "approval_duration",
827
"created", "enabled", "expires",
828
"fingerprint", "host", "interval",
829
"last_approval_request", "last_checked_ok",
830
"last_enabled", "name", "timeout")
833
"extended_timeout": "PT15M",
835
"checker": "fping -q -- %%(host)s",
837
"approval_delay": "PT0S",
838
"approval_duration": "PT1S",
839
"approved_by_default": "True",
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
275
def timeout_milliseconds(self):
276
"Return the 'timeout' attribute in milliseconds"
277
return self._timedelta_to_milliseconds(self.timeout)
279
def interval_milliseconds(self):
280
"Return the 'interval' attribute in milliseconds"
281
return self._timedelta_to_milliseconds(self.interval)
283
def approved_delay_milliseconds(self):
284
return self._timedelta_to_milliseconds(self.approved_delay)
286
def __init__(self, name = None, disable_hook=None, config=None):
287
"""Note: the 'checker' key in 'config' sets the
288
'checker_command' attribute and *not* the 'checker'
844
def config_parser(config):
845
"""Construct a new dict of client settings of this form:
846
{ client_name: {setting_name: value, ...}, ...}
847
with exceptions for any special settings as defined above.
848
NOTE: Must be a pure function. Must return the same result
849
value given the same arguments.
852
for client_name in config.sections():
853
section = dict(config.items(client_name))
854
client = settings[client_name] = {}
856
client["host"] = section["host"]
857
# Reformat values from string types to Python types
858
client["approved_by_default"] = config.getboolean(
859
client_name, "approved_by_default")
860
client["enabled"] = config.getboolean(client_name,
863
# Uppercase and remove spaces from fingerprint for later
864
# comparison purposes with return value from the
865
# fingerprint() function
866
client["fingerprint"] = (section["fingerprint"].upper()
868
if "secret" in section:
869
client["secret"] = codecs.decode(section["secret"]
872
elif "secfile" in section:
873
with open(os.path.expanduser(os.path.expandvars
874
(section["secfile"])),
876
client["secret"] = secfile.read()
878
raise TypeError("No secret or secfile for section {}"
880
client["timeout"] = string_to_delta(section["timeout"])
881
client["extended_timeout"] = string_to_delta(
882
section["extended_timeout"])
883
client["interval"] = string_to_delta(section["interval"])
884
client["approval_delay"] = string_to_delta(
885
section["approval_delay"])
886
client["approval_duration"] = string_to_delta(
887
section["approval_duration"])
888
client["checker_command"] = section["checker"]
889
client["last_approval_request"] = None
890
client["last_checked_ok"] = None
891
client["last_checker_status"] = -2
895
def __init__(self, settings, name=None, server_settings=None):
293
logger.debug(u"Creating client %r", self.name)
294
# Uppercase and remove spaces from fingerprint for later
295
# comparison purposes with return value from the fingerprint()
297
self.fingerprint = (config[u"fingerprint"].upper()
299
logger.debug(u" Fingerprint: %s", self.fingerprint)
300
if u"secret" in config:
301
self.secret = config[u"secret"].decode(u"base64")
302
elif u"secfile" in config:
303
with open(os.path.expanduser(os.path.expandvars
304
(config[u"secfile"])),
306
self.secret = secfile.read()
897
if server_settings is None:
899
self.server_settings = server_settings
900
# adding all client settings
901
for setting, value in settings.items():
902
setattr(self, setting, value)
905
if not hasattr(self, "last_enabled"):
906
self.last_enabled = datetime.datetime.utcnow()
907
if not hasattr(self, "expires"):
908
self.expires = (datetime.datetime.utcnow()
308
#XXX Need to allow secret on demand!
309
raise TypeError(u"No secret or secfile for client %s"
311
self.host = config.get(u"host", u"")
312
self.created = datetime.datetime.utcnow()
314
self.last_enabled = None
315
self.last_checked_ok = None
316
self.timeout = string_to_delta(config[u"timeout"])
317
self.interval = string_to_delta(config[u"interval"])
318
self.disable_hook = disable_hook
911
self.last_enabled = None
914
logger.debug("Creating client %r", self.name)
915
logger.debug(" Fingerprint: %s", self.fingerprint)
916
self.created = settings.get("created",
917
datetime.datetime.utcnow())
919
# attributes specific for this server instance
319
920
self.checker = None
320
921
self.checker_initiator_tag = None
321
922
self.disable_initiator_tag = None
322
923
self.checker_callback_tag = None
323
self.checker_command = config[u"checker"]
324
924
self.current_checker_command = None
325
self.last_connect = None
326
926
self.approvals_pending = 0
327
self._approved = None
328
self.approved_by_default = config.get(u"approved_by_default",
330
self.approved_delay = string_to_delta(
331
config[u"approved_delay"])
332
self.approved_duration = string_to_delta(
333
config[u"approved_duration"])
334
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
927
self.changedstate = multiprocessing_manager.Condition(
928
multiprocessing_manager.Lock())
929
self.client_structure = [attr
930
for attr in self.__dict__.keys()
931
if not attr.startswith("_")]
932
self.client_structure.append("client_structure")
934
for name, t in inspect.getmembers(
935
type(self), lambda obj: isinstance(obj, property)):
936
if not name.startswith("_"):
937
self.client_structure.append(name)
939
# Send notice to process children that client state has changed
336
940
def send_changedstate(self):
337
self.changedstate.acquire()
338
self.changedstate.notify_all()
339
self.changedstate.release()
941
with self.changedstate:
942
self.changedstate.notify_all()
341
944
def enable(self):
342
945
"""Start this client's checker and timeout hooks"""
343
if getattr(self, u"enabled", False):
946
if getattr(self, "enabled", False):
344
947
# Already enabled
346
self.send_changedstate()
949
self.expires = datetime.datetime.utcnow() + self.timeout
347
951
self.last_enabled = datetime.datetime.utcnow()
953
self.send_changedstate()
955
def disable(self, quiet=True):
956
"""Disable this client."""
957
if not getattr(self, "enabled", False):
960
logger.info("Disabling client %s", self.name)
961
if getattr(self, "disable_initiator_tag", None) is not None:
962
GLib.source_remove(self.disable_initiator_tag)
963
self.disable_initiator_tag = None
965
if getattr(self, "checker_initiator_tag", None) is not None:
966
GLib.source_remove(self.checker_initiator_tag)
967
self.checker_initiator_tag = None
971
self.send_changedstate()
972
# Do not run this again if called by a GLib.timeout_add
978
def init_checker(self):
348
979
# Schedule a new checker to be started an 'interval' from now,
349
980
# and every interval from then on.
350
self.checker_initiator_tag = (gobject.timeout_add
351
(self.interval_milliseconds(),
981
if self.checker_initiator_tag is not None:
982
GLib.source_remove(self.checker_initiator_tag)
983
self.checker_initiator_tag = GLib.timeout_add(
984
int(self.interval.total_seconds() * 1000),
353
986
# Schedule a disable() when 'timeout' has passed
354
self.disable_initiator_tag = (gobject.timeout_add
355
(self.timeout_milliseconds(),
987
if self.disable_initiator_tag is not None:
988
GLib.source_remove(self.disable_initiator_tag)
989
self.disable_initiator_tag = GLib.timeout_add(
990
int(self.timeout.total_seconds() * 1000), self.disable)
358
991
# Also start a new checker *right now*.
359
992
self.start_checker()
361
def disable(self, quiet=True):
362
"""Disable this client."""
363
if not getattr(self, "enabled", False):
366
self.send_changedstate()
368
logger.info(u"Disabling client %s", self.name)
369
if getattr(self, u"disable_initiator_tag", False):
370
gobject.source_remove(self.disable_initiator_tag)
371
self.disable_initiator_tag = None
372
if getattr(self, u"checker_initiator_tag", False):
373
gobject.source_remove(self.checker_initiator_tag)
374
self.checker_initiator_tag = None
376
if self.disable_hook:
377
self.disable_hook(self)
379
# Do not run this again if called by a gobject.timeout_add
383
self.disable_hook = None
386
def checker_callback(self, pid, condition, command):
994
def checker_callback(self, source, condition, connection,
387
996
"""The checker has completed, so take appropriate actions."""
388
997
self.checker_callback_tag = None
389
998
self.checker = None
390
if os.WIFEXITED(condition):
391
exitstatus = os.WEXITSTATUS(condition)
393
logger.info(u"Checker for %(name)s succeeded",
999
# Read return code from connection (see call_pipe)
1000
returncode = connection.recv()
1004
self.last_checker_status = returncode
1005
self.last_checker_signal = None
1006
if self.last_checker_status == 0:
1007
logger.info("Checker for %(name)s succeeded",
395
1009
self.checked_ok()
397
logger.info(u"Checker for %(name)s failed",
1011
logger.info("Checker for %(name)s failed", vars(self))
400
logger.warning(u"Checker for %(name)s crashed?",
1013
self.last_checker_status = -1
1014
self.last_checker_signal = -returncode
1015
logger.warning("Checker for %(name)s crashed?",
403
1019
def checked_ok(self):
404
"""Bump up the timeout for this client.
406
This should only be called when the client has been seen,
1020
"""Assert that the client has been seen, alive and well."""
409
1021
self.last_checked_ok = datetime.datetime.utcnow()
410
gobject.source_remove(self.disable_initiator_tag)
411
self.disable_initiator_tag = (gobject.timeout_add
412
(self.timeout_milliseconds(),
1022
self.last_checker_status = 0
1023
self.last_checker_signal = None
1026
def bump_timeout(self, timeout=None):
1027
"""Bump up the timeout for this client."""
1029
timeout = self.timeout
1030
if self.disable_initiator_tag is not None:
1031
GLib.source_remove(self.disable_initiator_tag)
1032
self.disable_initiator_tag = None
1033
if getattr(self, "enabled", False):
1034
self.disable_initiator_tag = GLib.timeout_add(
1035
int(timeout.total_seconds() * 1000), self.disable)
1036
self.expires = datetime.datetime.utcnow() + timeout
1038
def need_approval(self):
1039
self.last_approval_request = datetime.datetime.utcnow()
415
1041
def start_checker(self):
416
1042
"""Start a new checker subprocess if one is not running.
418
1044
If a checker already exists, leave it running and do
420
1046
# The reason for not killing a running checker is that if we
421
# did that, then if a checker (for some reason) started
422
# running slowly and taking more than 'interval' time, the
423
# client would inevitably timeout, since no checker would get
424
# a chance to run to completion. If we instead leave running
1047
# did that, and if a checker (for some reason) started running
1048
# slowly and taking more than 'interval' time, then the client
1049
# would inevitably timeout, since no checker would get a
1050
# chance to run to completion. If we instead leave running
425
1051
# checkers alone, the checker would have to take more time
426
1052
# than 'timeout' for the client to be disabled, which is as it
429
# If a checker exists, make sure it is not a zombie
431
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
432
except (AttributeError, OSError), error:
433
if (isinstance(error, OSError)
434
and error.errno != errno.ECHILD):
438
logger.warning(u"Checker was a zombie")
439
gobject.source_remove(self.checker_callback_tag)
440
self.checker_callback(pid, status,
441
self.current_checker_command)
1055
if self.checker is not None and not self.checker.is_alive():
1056
logger.warning("Checker was not alive; joining")
442
1059
# Start a new checker if needed
443
1060
if self.checker is None:
1061
# Escape attributes for the shell
1063
attr: re.escape(str(getattr(self, attr)))
1064
for attr in self.runtime_expansions}
445
# In case checker_command has exactly one % operator
446
command = self.checker_command % self.host
448
# Escape attributes for the shell
449
escaped_attrs = dict((key,
450
re.escape(unicode(str(val),
454
vars(self).iteritems())
456
command = self.checker_command % escaped_attrs
457
except TypeError, error:
458
logger.error(u'Could not format string "%s":'
459
u' %s', self.checker_command, error)
460
return True # Try again later
1066
command = self.checker_command % escaped_attrs
1067
except TypeError as error:
1068
logger.error('Could not format string "%s"',
1069
self.checker_command,
1071
return True # Try again later
461
1072
self.current_checker_command = command
463
logger.info(u"Starting checker %r for %s",
465
# We don't need to redirect stdout and stderr, since
466
# in normal mode, that is already done by daemon(),
467
# and in debug mode we don't want to. (Stdin is
468
# always replaced by /dev/null.)
469
self.checker = subprocess.Popen(command,
471
shell=True, cwd=u"/")
472
self.checker_callback_tag = (gobject.child_watch_add
474
self.checker_callback,
476
# The checker may have completed before the gobject
477
# watch was added. Check for this.
478
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
480
gobject.source_remove(self.checker_callback_tag)
481
self.checker_callback(pid, status, command)
482
except OSError, error:
483
logger.error(u"Failed to start subprocess: %s",
485
# Re-run this periodically if run by gobject.timeout_add
1073
logger.info("Starting checker %r for %s", command,
1075
# We don't need to redirect stdout and stderr, since
1076
# in normal mode, that is already done by daemon(),
1077
# and in debug mode we don't want to. (Stdin is
1078
# always replaced by /dev/null.)
1079
# The exception is when not debugging but nevertheless
1080
# running in the foreground; use the previously
1082
popen_args = {"close_fds": True,
1085
if (not self.server_settings["debug"]
1086
and self.server_settings["foreground"]):
1087
popen_args.update({"stdout": wnull,
1089
pipe = multiprocessing.Pipe(duplex=False)
1090
self.checker = multiprocessing.Process(
1092
args=(pipe[1], subprocess.call, command),
1094
self.checker.start()
1095
self.checker_callback_tag = GLib.io_add_watch(
1096
pipe[0].fileno(), GLib.IO_IN,
1097
self.checker_callback, pipe[0], command)
1098
# Re-run this periodically if run by GLib.timeout_add
488
1101
def stop_checker(self):
489
1102
"""Force the checker process, if any, to stop."""
490
1103
if self.checker_callback_tag:
491
gobject.source_remove(self.checker_callback_tag)
1104
GLib.source_remove(self.checker_callback_tag)
492
1105
self.checker_callback_tag = None
493
if getattr(self, u"checker", None) is None:
1106
if getattr(self, "checker", None) is None:
495
logger.debug(u"Stopping checker for %(name)s", vars(self))
497
os.kill(self.checker.pid, signal.SIGTERM)
499
#if self.checker.poll() is None:
500
# os.kill(self.checker.pid, signal.SIGKILL)
501
except OSError, error:
502
if error.errno != errno.ESRCH: # No such process
1108
logger.debug("Stopping checker for %(name)s", vars(self))
1109
self.checker.terminate()
504
1110
self.checker = None
506
def dbus_service_property(dbus_interface, signature=u"v",
507
access=u"readwrite", byte_arrays=False):
1113
def dbus_service_property(dbus_interface,
508
1117
"""Decorators for marking methods of a DBusObjectWithProperties to
509
1118
become properties on the D-Bus.
511
1120
The decorated method will be called with no arguments by "Get"
512
1121
and with one argument by "Set".
514
1123
The parameters, where they are supported, are the same as
515
1124
dbus.service.method, except there is only "signature", since the
516
1125
type from Get() and the type sent to Set() is the same.
518
1127
# Encoding deeply encoded byte arrays is not supported yet by the
519
1128
# "Set" method, so we fail early here:
520
if byte_arrays and signature != u"ay":
521
raise ValueError(u"Byte arrays not supported for non-'ay'"
522
u" signature %r" % signature)
1129
if byte_arrays and signature != "ay":
1130
raise ValueError("Byte arrays not supported for non-'ay'"
1131
" signature {!r}".format(signature))
523
1133
def decorator(func):
524
1134
func._dbus_is_property = True
525
1135
func._dbus_interface = dbus_interface
526
1136
func._dbus_signature = signature
527
1137
func._dbus_access = access
528
1138
func._dbus_name = func.__name__
529
if func._dbus_name.endswith(u"_dbus_property"):
1139
if func._dbus_name.endswith("_dbus_property"):
530
1140
func._dbus_name = func._dbus_name[:-14]
531
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
1141
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1147
def dbus_interface_annotations(dbus_interface):
1148
"""Decorator for marking functions returning interface annotations
1152
@dbus_interface_annotations("org.example.Interface")
1153
def _foo(self): # Function name does not matter
1154
return {"org.freedesktop.DBus.Deprecated": "true",
1155
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1159
def decorator(func):
1160
func._dbus_is_interface = True
1161
func._dbus_interface = dbus_interface
1162
func._dbus_name = dbus_interface
1168
def dbus_annotations(annotations):
1169
"""Decorator to annotate D-Bus methods, signals or properties
1172
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1173
"org.freedesktop.DBus.Property."
1174
"EmitsChangedSignal": "false"})
1175
@dbus_service_property("org.example.Interface", signature="b",
1177
def Property_dbus_property(self):
1178
return dbus.Boolean(False)
1180
See also the DBusObjectWithAnnotations class.
1183
def decorator(func):
1184
func._dbus_annotations = annotations
533
1187
return decorator
536
1190
class DBusPropertyException(dbus.exceptions.DBusException):
537
1191
"""A base class for D-Bus property-related exceptions
539
def __unicode__(self):
540
return unicode(str(self))
543
1196
class DBusPropertyAccessException(DBusPropertyException):
555
class DBusObjectWithProperties(dbus.service.Object):
1208
class DBusObjectWithAnnotations(dbus.service.Object):
1209
"""A D-Bus object with annotations.
1211
Classes inheriting from this can use the dbus_annotations
1212
decorator to add annotations to methods or signals.
1216
def _is_dbus_thing(thing):
1217
"""Returns a function testing if an attribute is a D-Bus thing
1219
If called like _is_dbus_thing("method") it returns a function
1220
suitable for use as predicate to inspect.getmembers().
1222
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1225
def _get_all_dbus_things(self, thing):
1226
"""Returns a generator of (name, attribute) pairs
1228
return ((getattr(athing.__get__(self), "_dbus_name", name),
1229
athing.__get__(self))
1230
for cls in self.__class__.__mro__
1232
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1234
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1236
path_keyword='object_path',
1237
connection_keyword='connection')
1238
def Introspect(self, object_path, connection):
1239
"""Overloading of standard D-Bus method.
1241
Inserts annotation tags on methods and signals.
1243
xmlstring = dbus.service.Object.Introspect(self, object_path,
1246
document = xml.dom.minidom.parseString(xmlstring)
1248
for if_tag in document.getElementsByTagName("interface"):
1249
# Add annotation tags
1250
for typ in ("method", "signal"):
1251
for tag in if_tag.getElementsByTagName(typ):
1253
for name, prop in (self.
1254
_get_all_dbus_things(typ)):
1255
if (name == tag.getAttribute("name")
1256
and prop._dbus_interface
1257
== if_tag.getAttribute("name")):
1258
annots.update(getattr(
1259
prop, "_dbus_annotations", {}))
1260
for name, value in annots.items():
1261
ann_tag = document.createElement(
1263
ann_tag.setAttribute("name", name)
1264
ann_tag.setAttribute("value", value)
1265
tag.appendChild(ann_tag)
1266
# Add interface annotation tags
1267
for annotation, value in dict(
1268
itertools.chain.from_iterable(
1269
annotations().items()
1270
for name, annotations
1271
in self._get_all_dbus_things("interface")
1272
if name == if_tag.getAttribute("name")
1274
ann_tag = document.createElement("annotation")
1275
ann_tag.setAttribute("name", annotation)
1276
ann_tag.setAttribute("value", value)
1277
if_tag.appendChild(ann_tag)
1278
# Fix argument name for the Introspect method itself
1279
if (if_tag.getAttribute("name")
1280
== dbus.INTROSPECTABLE_IFACE):
1281
for cn in if_tag.getElementsByTagName("method"):
1282
if cn.getAttribute("name") == "Introspect":
1283
for arg in cn.getElementsByTagName("arg"):
1284
if (arg.getAttribute("direction")
1286
arg.setAttribute("name",
1288
xmlstring = document.toxml("utf-8")
1290
except (AttributeError, xml.dom.DOMException,
1291
xml.parsers.expat.ExpatError) as error:
1292
logger.error("Failed to override Introspection method",
1297
class DBusObjectWithProperties(DBusObjectWithAnnotations):
556
1298
"""A D-Bus object with properties.
558
1300
Classes inheriting from this can use the dbus_service_property
559
1301
decorator to expose methods as D-Bus properties. It exposes the
560
1302
standard Get(), Set(), and GetAll() methods on the D-Bus.
564
def _is_dbus_property(obj):
565
return getattr(obj, u"_dbus_is_property", False)
567
def _get_all_dbus_properties(self):
568
"""Returns a generator of (name, attribute) pairs
570
return ((prop._dbus_name, prop)
572
inspect.getmembers(self, self._is_dbus_property))
574
1305
def _get_dbus_property(self, interface_name, property_name):
575
1306
"""Returns a bound method if one exists which is a D-Bus
576
1307
property with the specified name and interface.
578
for name in (property_name,
579
property_name + u"_dbus_property"):
580
prop = getattr(self, name, None)
582
or not self._is_dbus_property(prop)
583
or prop._dbus_name != property_name
584
or (interface_name and prop._dbus_interface
585
and interface_name != prop._dbus_interface)):
1309
for cls in self.__class__.__mro__:
1310
for name, value in inspect.getmembers(
1311
cls, self._is_dbus_thing("property")):
1312
if (value._dbus_name == property_name
1313
and value._dbus_interface == interface_name):
1314
return value.__get__(self)
588
1316
# No such property
589
raise DBusPropertyNotFound(self.dbus_object_path + u":"
590
+ interface_name + u"."
593
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
1317
raise DBusPropertyNotFound("{}:{}.{}".format(
1318
self.dbus_object_path, interface_name, property_name))
1321
def _get_all_interface_names(cls):
1322
"""Get a sequence of all interfaces supported by an object"""
1323
return (name for name in set(getattr(getattr(x, attr),
1324
"_dbus_interface", None)
1325
for x in (inspect.getmro(cls))
1327
if name is not None)
1329
@dbus.service.method(dbus.PROPERTIES_IFACE,
595
1332
def Get(self, interface_name, property_name):
596
1333
"""Standard D-Bus property Get() method, see D-Bus standard.
598
1335
prop = self._get_dbus_property(interface_name, property_name)
599
if prop._dbus_access == u"write":
1336
if prop._dbus_access == "write":
600
1337
raise DBusPropertyAccessException(property_name)
602
if not hasattr(value, u"variant_level"):
1339
if not hasattr(value, "variant_level"):
604
1341
return type(value)(value, variant_level=value.variant_level+1)
606
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1343
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
607
1344
def Set(self, interface_name, property_name, value):
608
1345
"""Standard D-Bus property Set() method, see D-Bus standard.
610
1347
prop = self._get_dbus_property(interface_name, property_name)
611
if prop._dbus_access == u"read":
1348
if prop._dbus_access == "read":
612
1349
raise DBusPropertyAccessException(property_name)
613
if prop._dbus_get_args_options[u"byte_arrays"]:
1350
if prop._dbus_get_args_options["byte_arrays"]:
614
1351
# The byte_arrays option is not supported yet on
615
1352
# signatures other than "ay".
616
if prop._dbus_signature != u"ay":
618
value = dbus.ByteArray(''.join(unichr(byte)
1353
if prop._dbus_signature != "ay":
1354
raise ValueError("Byte arrays not supported for non-"
1355
"'ay' signature {!r}"
1356
.format(prop._dbus_signature))
1357
value = dbus.ByteArray(b''.join(chr(byte)
622
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
623
out_signature=u"a{sv}")
1361
@dbus.service.method(dbus.PROPERTIES_IFACE,
1363
out_signature="a{sv}")
624
1364
def GetAll(self, interface_name):
625
1365
"""Standard D-Bus property GetAll() method, see D-Bus
628
1368
Note: Will not include properties with access="write".
631
for name, prop in self._get_all_dbus_properties():
1371
for name, prop in self._get_all_dbus_things("property"):
632
1372
if (interface_name
633
1373
and interface_name != prop._dbus_interface):
634
1374
# Interface non-empty but did not match
636
1376
# Ignore write-only properties
637
if prop._dbus_access == u"write":
1377
if prop._dbus_access == "write":
640
if not hasattr(value, u"variant_level"):
1380
if not hasattr(value, "variant_level"):
1381
properties[name] = value
643
all[name] = type(value)(value, variant_level=
644
value.variant_level+1)
645
return dbus.Dictionary(all, signature=u"sv")
1383
properties[name] = type(value)(
1384
value, variant_level=value.variant_level + 1)
1385
return dbus.Dictionary(properties, signature="sv")
1387
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1388
def PropertiesChanged(self, interface_name, changed_properties,
1389
invalidated_properties):
1390
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
647
1395
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
649
1397
path_keyword='object_path',
650
1398
connection_keyword='connection')
651
1399
def Introspect(self, object_path, connection):
652
"""Standard D-Bus method, overloaded to insert property tags.
1400
"""Overloading of standard D-Bus method.
1402
Inserts property tags and interface annotation tags.
654
xmlstring = dbus.service.Object.Introspect(self, object_path,
1404
xmlstring = DBusObjectWithAnnotations.Introspect(self,
657
1408
document = xml.dom.minidom.parseString(xmlstring)
658
1410
def make_tag(document, name, prop):
659
e = document.createElement(u"property")
660
e.setAttribute(u"name", name)
661
e.setAttribute(u"type", prop._dbus_signature)
662
e.setAttribute(u"access", prop._dbus_access)
1411
e = document.createElement("property")
1412
e.setAttribute("name", name)
1413
e.setAttribute("type", prop._dbus_signature)
1414
e.setAttribute("access", prop._dbus_access)
664
for if_tag in document.getElementsByTagName(u"interface"):
1417
for if_tag in document.getElementsByTagName("interface"):
665
1419
for tag in (make_tag(document, name, prop)
667
in self._get_all_dbus_properties()
1421
in self._get_all_dbus_things("property")
668
1422
if prop._dbus_interface
669
== if_tag.getAttribute(u"name")):
1423
== if_tag.getAttribute("name")):
670
1424
if_tag.appendChild(tag)
1425
# Add annotation tags for properties
1426
for tag in if_tag.getElementsByTagName("property"):
1428
for name, prop in self._get_all_dbus_things(
1430
if (name == tag.getAttribute("name")
1431
and prop._dbus_interface
1432
== if_tag.getAttribute("name")):
1433
annots.update(getattr(
1434
prop, "_dbus_annotations", {}))
1435
for name, value in annots.items():
1436
ann_tag = document.createElement(
1438
ann_tag.setAttribute("name", name)
1439
ann_tag.setAttribute("value", value)
1440
tag.appendChild(ann_tag)
671
1441
# Add the names to the return values for the
672
1442
# "org.freedesktop.DBus.Properties" methods
673
if (if_tag.getAttribute(u"name")
674
== u"org.freedesktop.DBus.Properties"):
675
for cn in if_tag.getElementsByTagName(u"method"):
676
if cn.getAttribute(u"name") == u"Get":
677
for arg in cn.getElementsByTagName(u"arg"):
678
if (arg.getAttribute(u"direction")
680
arg.setAttribute(u"name", u"value")
681
elif cn.getAttribute(u"name") == u"GetAll":
682
for arg in cn.getElementsByTagName(u"arg"):
683
if (arg.getAttribute(u"direction")
685
arg.setAttribute(u"name", u"props")
686
xmlstring = document.toxml(u"utf-8")
688
except (AttributeError, xml.dom.DOMException,
689
xml.parsers.expat.ExpatError), error:
690
logger.error(u"Failed to override Introspection method",
1443
if (if_tag.getAttribute("name")
1444
== "org.freedesktop.DBus.Properties"):
1445
for cn in if_tag.getElementsByTagName("method"):
1446
if cn.getAttribute("name") == "Get":
1447
for arg in cn.getElementsByTagName("arg"):
1448
if (arg.getAttribute("direction")
1450
arg.setAttribute("name", "value")
1451
elif cn.getAttribute("name") == "GetAll":
1452
for arg in cn.getElementsByTagName("arg"):
1453
if (arg.getAttribute("direction")
1455
arg.setAttribute("name", "props")
1456
xmlstring = document.toxml("utf-8")
1458
except (AttributeError, xml.dom.DOMException,
1459
xml.parsers.expat.ExpatError) as error:
1460
logger.error("Failed to override Introspection method",
1466
dbus.OBJECT_MANAGER_IFACE
1467
except AttributeError:
1468
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1471
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1472
"""A D-Bus object with an ObjectManager.
1474
Classes inheriting from this exposes the standard
1475
GetManagedObjects call and the InterfacesAdded and
1476
InterfacesRemoved signals on the standard
1477
"org.freedesktop.DBus.ObjectManager" interface.
1479
Note: No signals are sent automatically; they must be sent
1482
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1483
out_signature="a{oa{sa{sv}}}")
1484
def GetManagedObjects(self):
1485
"""This function must be overridden"""
1486
raise NotImplementedError()
1488
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1489
signature="oa{sa{sv}}")
1490
def InterfacesAdded(self, object_path, interfaces_and_properties):
1493
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1494
def InterfacesRemoved(self, object_path, interfaces):
1497
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1499
path_keyword='object_path',
1500
connection_keyword='connection')
1501
def Introspect(self, object_path, connection):
1502
"""Overloading of standard D-Bus method.
1504
Override return argument name of GetManagedObjects to be
1505
"objpath_interfaces_and_properties"
1507
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1511
document = xml.dom.minidom.parseString(xmlstring)
1513
for if_tag in document.getElementsByTagName("interface"):
1514
# Fix argument name for the GetManagedObjects method
1515
if (if_tag.getAttribute("name")
1516
== dbus.OBJECT_MANAGER_IFACE):
1517
for cn in if_tag.getElementsByTagName("method"):
1518
if (cn.getAttribute("name")
1519
== "GetManagedObjects"):
1520
for arg in cn.getElementsByTagName("arg"):
1521
if (arg.getAttribute("direction")
1525
"objpath_interfaces"
1527
xmlstring = document.toxml("utf-8")
1529
except (AttributeError, xml.dom.DOMException,
1530
xml.parsers.expat.ExpatError) as error:
1531
logger.error("Failed to override Introspection method",
1536
def datetime_to_dbus(dt, variant_level=0):
1537
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1539
return dbus.String("", variant_level=variant_level)
1540
return dbus.String(dt.isoformat(), variant_level=variant_level)
1543
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1544
"""A class decorator; applied to a subclass of
1545
dbus.service.Object, it will add alternate D-Bus attributes with
1546
interface names according to the "alt_interface_names" mapping.
1549
@alternate_dbus_interfaces({"org.example.Interface":
1550
"net.example.AlternateInterface"})
1551
class SampleDBusObject(dbus.service.Object):
1552
@dbus.service.method("org.example.Interface")
1553
def SampleDBusMethod():
1556
The above "SampleDBusMethod" on "SampleDBusObject" will be
1557
reachable via two interfaces: "org.example.Interface" and
1558
"net.example.AlternateInterface", the latter of which will have
1559
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1560
"true", unless "deprecate" is passed with a False value.
1562
This works for methods and signals, and also for D-Bus properties
1563
(from DBusObjectWithProperties) and interfaces (from the
1564
dbus_interface_annotations decorator).
1568
for orig_interface_name, alt_interface_name in (
1569
alt_interface_names.items()):
1571
interface_names = set()
1572
# Go though all attributes of the class
1573
for attrname, attribute in inspect.getmembers(cls):
1574
# Ignore non-D-Bus attributes, and D-Bus attributes
1575
# with the wrong interface name
1576
if (not hasattr(attribute, "_dbus_interface")
1577
or not attribute._dbus_interface.startswith(
1578
orig_interface_name)):
1580
# Create an alternate D-Bus interface name based on
1582
alt_interface = attribute._dbus_interface.replace(
1583
orig_interface_name, alt_interface_name)
1584
interface_names.add(alt_interface)
1585
# Is this a D-Bus signal?
1586
if getattr(attribute, "_dbus_is_signal", False):
1587
# Extract the original non-method undecorated
1588
# function by black magic
1589
if sys.version_info.major == 2:
1590
nonmethod_func = (dict(
1591
zip(attribute.func_code.co_freevars,
1592
attribute.__closure__))
1593
["func"].cell_contents)
1595
nonmethod_func = (dict(
1596
zip(attribute.__code__.co_freevars,
1597
attribute.__closure__))
1598
["func"].cell_contents)
1599
# Create a new, but exactly alike, function
1600
# object, and decorate it to be a new D-Bus signal
1601
# with the alternate D-Bus interface name
1602
new_function = copy_function(nonmethod_func)
1603
new_function = (dbus.service.signal(
1605
attribute._dbus_signature)(new_function))
1606
# Copy annotations, if any
1608
new_function._dbus_annotations = dict(
1609
attribute._dbus_annotations)
1610
except AttributeError:
1613
# Define a creator of a function to call both the
1614
# original and alternate functions, so both the
1615
# original and alternate signals gets sent when
1616
# the function is called
1617
def fixscope(func1, func2):
1618
"""This function is a scope container to pass
1619
func1 and func2 to the "call_both" function
1620
outside of its arguments"""
1622
@functools.wraps(func2)
1623
def call_both(*args, **kwargs):
1624
"""This function will emit two D-Bus
1625
signals by calling func1 and func2"""
1626
func1(*args, **kwargs)
1627
func2(*args, **kwargs)
1628
# Make wrapper function look like a D-Bus
1630
for name, attr in inspect.getmembers(func2):
1631
if name.startswith("_dbus_"):
1632
setattr(call_both, name, attr)
1635
# Create the "call_both" function and add it to
1637
attr[attrname] = fixscope(attribute, new_function)
1638
# Is this a D-Bus method?
1639
elif getattr(attribute, "_dbus_is_method", False):
1640
# Create a new, but exactly alike, function
1641
# object. Decorate it to be a new D-Bus method
1642
# with the alternate D-Bus interface name. Add it
1645
dbus.service.method(
1647
attribute._dbus_in_signature,
1648
attribute._dbus_out_signature)
1649
(copy_function(attribute)))
1650
# Copy annotations, if any
1652
attr[attrname]._dbus_annotations = dict(
1653
attribute._dbus_annotations)
1654
except AttributeError:
1656
# Is this a D-Bus property?
1657
elif getattr(attribute, "_dbus_is_property", False):
1658
# Create a new, but exactly alike, function
1659
# object, and decorate it to be a new D-Bus
1660
# property with the alternate D-Bus interface
1661
# name. Add it to the class.
1662
attr[attrname] = (dbus_service_property(
1663
alt_interface, attribute._dbus_signature,
1664
attribute._dbus_access,
1665
attribute._dbus_get_args_options
1667
(copy_function(attribute)))
1668
# Copy annotations, if any
1670
attr[attrname]._dbus_annotations = dict(
1671
attribute._dbus_annotations)
1672
except AttributeError:
1674
# Is this a D-Bus interface?
1675
elif getattr(attribute, "_dbus_is_interface", False):
1676
# Create a new, but exactly alike, function
1677
# object. Decorate it to be a new D-Bus interface
1678
# with the alternate D-Bus interface name. Add it
1681
dbus_interface_annotations(alt_interface)
1682
(copy_function(attribute)))
1684
# Deprecate all alternate interfaces
1685
iname = "_AlternateDBusNames_interface_annotation{}"
1686
for interface_name in interface_names:
1688
@dbus_interface_annotations(interface_name)
1690
return {"org.freedesktop.DBus.Deprecated":
1692
# Find an unused name
1693
for aname in (iname.format(i)
1694
for i in itertools.count()):
1695
if aname not in attr:
1699
# Replace the class with a new subclass of it with
1700
# methods, signals, etc. as created above.
1701
if sys.version_info.major == 2:
1702
cls = type(b"{}Alternate".format(cls.__name__),
1705
cls = type("{}Alternate".format(cls.__name__),
1712
@alternate_dbus_interfaces({"se.recompile.Mandos":
1713
"se.bsnet.fukt.Mandos"})
695
1714
class ClientDBus(Client, DBusObjectWithProperties):
696
1715
"""A Client class using D-Bus
699
1718
dbus_object_path: dbus.ObjectPath
700
1719
bus: dbus.SystemBus()
1722
runtime_expansions = (Client.runtime_expansions
1723
+ ("dbus_object_path", ))
1725
_interface = "se.recompile.Mandos.Client"
702
1727
# dbus.service.Object doesn't use super(), so we can't either.
704
def __init__(self, bus = None, *args, **kwargs):
1729
def __init__(self, bus=None, *args, **kwargs):
706
1731
Client.__init__(self, *args, **kwargs)
707
1732
# Only now, when this client is initialized, can it show up on
709
self.dbus_object_path = (dbus.ObjectPath
711
+ self.name.replace(u".", u"_")))
1734
client_object_name = str(self.name).translate(
1735
{ord("."): ord("_"),
1736
ord("-"): ord("_")})
1737
self.dbus_object_path = dbus.ObjectPath(
1738
"/clients/" + client_object_name)
712
1739
DBusObjectWithProperties.__init__(self, self.bus,
713
1740
self.dbus_object_path)
716
def _datetime_to_dbus(dt, variant_level=0):
717
"""Convert a UTC datetime.datetime() to a D-Bus type."""
718
return dbus.String(dt.isoformat(),
719
variant_level=variant_level)
722
oldstate = getattr(self, u"enabled", False)
723
r = Client.enable(self)
724
if oldstate != self.enabled:
726
self.PropertyChanged(dbus.String(u"enabled"),
727
dbus.Boolean(True, variant_level=1))
728
self.PropertyChanged(
729
dbus.String(u"last_enabled"),
730
self._datetime_to_dbus(self.last_enabled,
734
def disable(self, quiet = False):
735
oldstate = getattr(self, u"enabled", False)
736
r = Client.disable(self, quiet=quiet)
737
if not quiet and oldstate != self.enabled:
739
self.PropertyChanged(dbus.String(u"enabled"),
740
dbus.Boolean(False, variant_level=1))
1742
def notifychangeproperty(transform_func, dbus_name,
1743
type_func=lambda x: x,
1745
invalidate_only=False,
1746
_interface=_interface):
1747
""" Modify a variable so that it's a property which announces
1748
its changes to DBus.
1750
transform_fun: Function that takes a value and a variant_level
1751
and transforms it to a D-Bus type.
1752
dbus_name: D-Bus name of the variable
1753
type_func: Function that transform the value before sending it
1754
to the D-Bus. Default: no transform
1755
variant_level: D-Bus variant level. Default: 1
1757
attrname = "_{}".format(dbus_name)
1759
def setter(self, value):
1760
if hasattr(self, "dbus_object_path"):
1761
if (not hasattr(self, attrname) or
1762
type_func(getattr(self, attrname, None))
1763
!= type_func(value)):
1765
self.PropertiesChanged(
1766
_interface, dbus.Dictionary(),
1767
dbus.Array((dbus_name, )))
1769
dbus_value = transform_func(
1771
variant_level=variant_level)
1772
self.PropertyChanged(dbus.String(dbus_name),
1774
self.PropertiesChanged(
1776
dbus.Dictionary({dbus.String(dbus_name):
1779
setattr(self, attrname, value)
1781
return property(lambda self: getattr(self, attrname), setter)
1783
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1784
approvals_pending = notifychangeproperty(dbus.Boolean,
1787
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1788
last_enabled = notifychangeproperty(datetime_to_dbus,
1790
checker = notifychangeproperty(
1791
dbus.Boolean, "CheckerRunning",
1792
type_func=lambda checker: checker is not None)
1793
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1795
last_checker_status = notifychangeproperty(dbus.Int16,
1796
"LastCheckerStatus")
1797
last_approval_request = notifychangeproperty(
1798
datetime_to_dbus, "LastApprovalRequest")
1799
approved_by_default = notifychangeproperty(dbus.Boolean,
1800
"ApprovedByDefault")
1801
approval_delay = notifychangeproperty(
1802
dbus.UInt64, "ApprovalDelay",
1803
type_func=lambda td: td.total_seconds() * 1000)
1804
approval_duration = notifychangeproperty(
1805
dbus.UInt64, "ApprovalDuration",
1806
type_func=lambda td: td.total_seconds() * 1000)
1807
host = notifychangeproperty(dbus.String, "Host")
1808
timeout = notifychangeproperty(
1809
dbus.UInt64, "Timeout",
1810
type_func=lambda td: td.total_seconds() * 1000)
1811
extended_timeout = notifychangeproperty(
1812
dbus.UInt64, "ExtendedTimeout",
1813
type_func=lambda td: td.total_seconds() * 1000)
1814
interval = notifychangeproperty(
1815
dbus.UInt64, "Interval",
1816
type_func=lambda td: td.total_seconds() * 1000)
1817
checker_command = notifychangeproperty(dbus.String, "Checker")
1818
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1819
invalidate_only=True)
1821
del notifychangeproperty
743
1823
def __del__(self, *args, **kwargs):
745
1825
self.remove_from_connection()
746
1826
except LookupError:
748
if hasattr(DBusObjectWithProperties, u"__del__"):
1828
if hasattr(DBusObjectWithProperties, "__del__"):
749
1829
DBusObjectWithProperties.__del__(self, *args, **kwargs)
750
1830
Client.__del__(self, *args, **kwargs)
752
def checker_callback(self, pid, condition, command,
754
self.checker_callback_tag = None
757
self.PropertyChanged(dbus.String(u"checker_running"),
758
dbus.Boolean(False, variant_level=1))
759
if os.WIFEXITED(condition):
760
exitstatus = os.WEXITSTATUS(condition)
1832
def checker_callback(self, source, condition,
1833
connection, command, *args, **kwargs):
1834
ret = Client.checker_callback(self, source, condition,
1835
connection, command, *args,
1837
exitstatus = self.last_checker_status
761
1839
# Emit D-Bus signal
762
1840
self.CheckerCompleted(dbus.Int16(exitstatus),
763
dbus.Int64(condition),
1841
# This is specific to GNU libC
1842
dbus.Int64(exitstatus << 8),
764
1843
dbus.String(command))
766
1845
# Emit D-Bus signal
767
1846
self.CheckerCompleted(dbus.Int16(-1),
768
dbus.Int64(condition),
1848
# This is specific to GNU libC
1850
| self.last_checker_signal),
769
1851
dbus.String(command))
771
return Client.checker_callback(self, pid, condition, command,
774
def checked_ok(self, *args, **kwargs):
775
r = Client.checked_ok(self, *args, **kwargs)
777
self.PropertyChanged(
778
dbus.String(u"last_checked_ok"),
779
(self._datetime_to_dbus(self.last_checked_ok,
783
1854
def start_checker(self, *args, **kwargs):
784
old_checker = self.checker
785
if self.checker is not None:
786
old_checker_pid = self.checker.pid
788
old_checker_pid = None
1855
old_checker_pid = getattr(self.checker, "pid", None)
789
1856
r = Client.start_checker(self, *args, **kwargs)
790
1857
# Only if new checker process was started
791
1858
if (self.checker is not None
792
1859
and old_checker_pid != self.checker.pid):
793
1860
# Emit D-Bus signal
794
1861
self.CheckerStarted(self.current_checker_command)
795
self.PropertyChanged(
796
dbus.String(u"checker_running"),
797
dbus.Boolean(True, variant_level=1))
800
def stop_checker(self, *args, **kwargs):
801
old_checker = getattr(self, u"checker", None)
802
r = Client.stop_checker(self, *args, **kwargs)
803
if (old_checker is not None
804
and getattr(self, u"checker", None) is None):
805
self.PropertyChanged(dbus.String(u"checker_running"),
806
dbus.Boolean(False, variant_level=1))
809
1864
def _reset_approved(self):
810
self._approved = None
1865
self.approved = None
813
1868
def approve(self, value=True):
814
self._approved = value
815
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration, self._reset_approved))
817
def approved_pending(self):
818
return self.approvals_pending > 0
821
## D-Bus methods, signals & properties
822
_interface = u"se.bsnet.fukt.Mandos.Client"
1869
self.approved = value
1870
GLib.timeout_add(int(self.approval_duration.total_seconds()
1871
* 1000), self._reset_approved)
1872
self.send_changedstate()
1874
# D-Bus methods, signals & properties
826
1880
# CheckerCompleted - signal
827
@dbus.service.signal(_interface, signature=u"nxs")
1881
@dbus.service.signal(_interface, signature="nxs")
828
1882
def CheckerCompleted(self, exitcode, waitstatus, command):
832
1886
# CheckerStarted - signal
833
@dbus.service.signal(_interface, signature=u"s")
1887
@dbus.service.signal(_interface, signature="s")
834
1888
def CheckerStarted(self, command):
838
1892
# PropertyChanged - signal
839
@dbus.service.signal(_interface, signature=u"sv")
1893
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1894
@dbus.service.signal(_interface, signature="sv")
840
1895
def PropertyChanged(self, property, value):
844
1899
# GotSecret - signal
845
1900
@dbus.service.signal(_interface)
846
1901
def GotSecret(self):
848
if self.approved_pending():
849
self.PropertyChanged(dbus.String(u"checker_running"),
850
dbus.Boolean(False, variant_level=1))
1903
Is sent after a successful transfer of secret from the Mandos
1904
server to mandos-client
852
1908
# Rejected - signal
853
@dbus.service.signal(_interface, signature=u"s")
1909
@dbus.service.signal(_interface, signature="s")
854
1910
def Rejected(self, reason):
856
if self.approved_pending():
857
self.PropertyChanged(dbus.String(u"checker_running"),
858
dbus.Boolean(False, variant_level=1))
860
1914
# NeedApproval - signal
861
@dbus.service.signal(_interface, signature=u"db")
1915
@dbus.service.signal(_interface, signature="tb")
862
1916
def NeedApproval(self, timeout, default):
864
if not self.approved_pending():
865
self.PropertyChanged(dbus.String(u"approved_pending"),
866
dbus.Boolean(True, variant_level=1))
1918
return self.need_approval()
870
1922
# Approve - method
871
@dbus.service.method(_interface, in_signature=u"b")
1923
@dbus.service.method(_interface, in_signature="b")
872
1924
def Approve(self, value):
873
1925
self.approve(value)
875
1927
# CheckedOK - method
876
1928
@dbus.service.method(_interface)
877
1929
def CheckedOK(self):
878
return self.checked_ok()
880
1932
# Enable - method
1933
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
881
1934
@dbus.service.method(_interface)
882
1935
def Enable(self):
886
1939
# StartChecker - method
1940
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
887
1941
@dbus.service.method(_interface)
888
1942
def StartChecker(self):
890
1944
self.start_checker()
892
1946
# Disable - method
1947
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
893
1948
@dbus.service.method(_interface)
894
1949
def Disable(self):
898
1953
# StopChecker - method
1954
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
899
1955
@dbus.service.method(_interface)
900
1956
def StopChecker(self):
901
1957
self.stop_checker()
905
# approved_pending - property
906
@dbus_service_property(_interface, signature=u"b", access=u"read")
907
def approved_pending_dbus_property(self):
908
return dbus.Boolean(self.approved_pending())
910
# approved_by_default - property
911
@dbus_service_property(_interface, signature=u"b",
913
def approved_by_default_dbus_property(self):
914
return dbus.Boolean(self.approved_by_default)
916
# approved_delay - property
917
@dbus_service_property(_interface, signature=u"t",
919
def approved_delay_dbus_property(self):
920
return dbus.UInt64(self.approved_delay_milliseconds())
922
# approved_duration - property
923
@dbus_service_property(_interface, signature=u"t",
925
def approved_duration_dbus_property(self):
926
return dbus.UInt64(self._timedelta_to_milliseconds(
927
self.approved_duration))
930
@dbus_service_property(_interface, signature=u"s", access=u"read")
931
def name_dbus_property(self):
1961
# ApprovalPending - property
1962
@dbus_service_property(_interface, signature="b", access="read")
1963
def ApprovalPending_dbus_property(self):
1964
return dbus.Boolean(bool(self.approvals_pending))
1966
# ApprovedByDefault - property
1967
@dbus_service_property(_interface,
1970
def ApprovedByDefault_dbus_property(self, value=None):
1971
if value is None: # get
1972
return dbus.Boolean(self.approved_by_default)
1973
self.approved_by_default = bool(value)
1975
# ApprovalDelay - property
1976
@dbus_service_property(_interface,
1979
def ApprovalDelay_dbus_property(self, value=None):
1980
if value is None: # get
1981
return dbus.UInt64(self.approval_delay.total_seconds()
1983
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1985
# ApprovalDuration - property
1986
@dbus_service_property(_interface,
1989
def ApprovalDuration_dbus_property(self, value=None):
1990
if value is None: # get
1991
return dbus.UInt64(self.approval_duration.total_seconds()
1993
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1997
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1998
@dbus_service_property(_interface, signature="s", access="read")
1999
def Name_dbus_property(self):
932
2000
return dbus.String(self.name)
934
# fingerprint - property
935
@dbus_service_property(_interface, signature=u"s", access=u"read")
936
def fingerprint_dbus_property(self):
2002
# Fingerprint - property
2004
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2005
@dbus_service_property(_interface, signature="s", access="read")
2006
def Fingerprint_dbus_property(self):
937
2007
return dbus.String(self.fingerprint)
940
@dbus_service_property(_interface, signature=u"s",
942
def host_dbus_property(self, value=None):
2010
@dbus_service_property(_interface,
2013
def Host_dbus_property(self, value=None):
943
2014
if value is None: # get
944
2015
return dbus.String(self.host)
947
self.PropertyChanged(dbus.String(u"host"),
948
dbus.String(value, variant_level=1))
951
@dbus_service_property(_interface, signature=u"s", access=u"read")
952
def created_dbus_property(self):
953
return dbus.String(self._datetime_to_dbus(self.created))
955
# last_enabled - property
956
@dbus_service_property(_interface, signature=u"s", access=u"read")
957
def last_enabled_dbus_property(self):
958
if self.last_enabled is None:
959
return dbus.String(u"")
960
return dbus.String(self._datetime_to_dbus(self.last_enabled))
963
@dbus_service_property(_interface, signature=u"b",
965
def enabled_dbus_property(self, value=None):
2016
self.host = str(value)
2018
# Created - property
2020
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2021
@dbus_service_property(_interface, signature="s", access="read")
2022
def Created_dbus_property(self):
2023
return datetime_to_dbus(self.created)
2025
# LastEnabled - property
2026
@dbus_service_property(_interface, signature="s", access="read")
2027
def LastEnabled_dbus_property(self):
2028
return datetime_to_dbus(self.last_enabled)
2030
# Enabled - property
2031
@dbus_service_property(_interface,
2034
def Enabled_dbus_property(self, value=None):
966
2035
if value is None: # get
967
2036
return dbus.Boolean(self.enabled)
973
# last_checked_ok - property
974
@dbus_service_property(_interface, signature=u"s",
976
def last_checked_ok_dbus_property(self, value=None):
2042
# LastCheckedOK - property
2043
@dbus_service_property(_interface,
2046
def LastCheckedOK_dbus_property(self, value=None):
977
2047
if value is not None:
978
2048
self.checked_ok()
980
if self.last_checked_ok is None:
981
return dbus.String(u"")
982
return dbus.String(self._datetime_to_dbus(self
986
@dbus_service_property(_interface, signature=u"t",
988
def timeout_dbus_property(self, value=None):
2050
return datetime_to_dbus(self.last_checked_ok)
2052
# LastCheckerStatus - property
2053
@dbus_service_property(_interface, signature="n", access="read")
2054
def LastCheckerStatus_dbus_property(self):
2055
return dbus.Int16(self.last_checker_status)
2057
# Expires - property
2058
@dbus_service_property(_interface, signature="s", access="read")
2059
def Expires_dbus_property(self):
2060
return datetime_to_dbus(self.expires)
2062
# LastApprovalRequest - property
2063
@dbus_service_property(_interface, signature="s", access="read")
2064
def LastApprovalRequest_dbus_property(self):
2065
return datetime_to_dbus(self.last_approval_request)
2067
# Timeout - property
2068
@dbus_service_property(_interface,
2071
def Timeout_dbus_property(self, value=None):
989
2072
if value is None: # get
990
return dbus.UInt64(self.timeout_milliseconds())
2073
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2074
old_timeout = self.timeout
991
2075
self.timeout = datetime.timedelta(0, 0, 0, value)
993
self.PropertyChanged(dbus.String(u"timeout"),
994
dbus.UInt64(value, variant_level=1))
995
if getattr(self, u"disable_initiator_tag", None) is None:
998
gobject.source_remove(self.disable_initiator_tag)
999
self.disable_initiator_tag = None
1000
time_to_die = (self.
1001
_timedelta_to_milliseconds((self
1006
if time_to_die <= 0:
1007
# The timeout has passed
1010
self.disable_initiator_tag = (gobject.timeout_add
1011
(time_to_die, self.disable))
1013
# interval - property
1014
@dbus_service_property(_interface, signature=u"t",
1015
access=u"readwrite")
1016
def interval_dbus_property(self, value=None):
1017
if value is None: # get
1018
return dbus.UInt64(self.interval_milliseconds())
2076
# Reschedule disabling
2078
now = datetime.datetime.utcnow()
2079
self.expires += self.timeout - old_timeout
2080
if self.expires <= now:
2081
# The timeout has passed
2084
if (getattr(self, "disable_initiator_tag", None)
2087
GLib.source_remove(self.disable_initiator_tag)
2088
self.disable_initiator_tag = GLib.timeout_add(
2089
int((self.expires - now).total_seconds() * 1000),
2092
# ExtendedTimeout - property
2093
@dbus_service_property(_interface,
2096
def ExtendedTimeout_dbus_property(self, value=None):
2097
if value is None: # get
2098
return dbus.UInt64(self.extended_timeout.total_seconds()
2100
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2102
# Interval - property
2103
@dbus_service_property(_interface,
2106
def Interval_dbus_property(self, value=None):
2107
if value is None: # get
2108
return dbus.UInt64(self.interval.total_seconds() * 1000)
1019
2109
self.interval = datetime.timedelta(0, 0, 0, value)
1021
self.PropertyChanged(dbus.String(u"interval"),
1022
dbus.UInt64(value, variant_level=1))
1023
if getattr(self, u"checker_initiator_tag", None) is None:
2110
if getattr(self, "checker_initiator_tag", None) is None:
1025
# Reschedule checker run
1026
gobject.source_remove(self.checker_initiator_tag)
1027
self.checker_initiator_tag = (gobject.timeout_add
1028
(value, self.start_checker))
1029
self.start_checker() # Start one now, too
2113
# Reschedule checker run
2114
GLib.source_remove(self.checker_initiator_tag)
2115
self.checker_initiator_tag = GLib.timeout_add(
2116
value, self.start_checker)
2117
self.start_checker() # Start one now, too
1031
# checker - property
1032
@dbus_service_property(_interface, signature=u"s",
1033
access=u"readwrite")
1034
def checker_dbus_property(self, value=None):
2119
# Checker - property
2120
@dbus_service_property(_interface,
2123
def Checker_dbus_property(self, value=None):
1035
2124
if value is None: # get
1036
2125
return dbus.String(self.checker_command)
1037
self.checker_command = value
1039
self.PropertyChanged(dbus.String(u"checker"),
1040
dbus.String(self.checker_command,
1043
# checker_running - property
1044
@dbus_service_property(_interface, signature=u"b",
1045
access=u"readwrite")
1046
def checker_running_dbus_property(self, value=None):
2126
self.checker_command = str(value)
2128
# CheckerRunning - property
2129
@dbus_service_property(_interface,
2132
def CheckerRunning_dbus_property(self, value=None):
1047
2133
if value is None: # get
1048
2134
return dbus.Boolean(self.checker is not None)
1050
2136
self.start_checker()
1052
2138
self.stop_checker()
1054
# object_path - property
1055
@dbus_service_property(_interface, signature=u"o", access=u"read")
1056
def object_path_dbus_property(self):
1057
return self.dbus_object_path # is already a dbus.ObjectPath
1060
@dbus_service_property(_interface, signature=u"ay",
1061
access=u"write", byte_arrays=True)
1062
def secret_dbus_property(self, value):
1063
self.secret = str(value)
2140
# ObjectPath - property
2142
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2143
"org.freedesktop.DBus.Deprecated": "true"})
2144
@dbus_service_property(_interface, signature="o", access="read")
2145
def ObjectPath_dbus_property(self):
2146
return self.dbus_object_path # is already a dbus.ObjectPath
2150
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2152
@dbus_service_property(_interface,
2156
def Secret_dbus_property(self, value):
2157
self.secret = bytes(value)
1211
2298
if self.server.use_dbus:
1212
2299
# Emit D-Bus signal
1213
client.Rejected("Time out")
2300
client.Rejected("Approval timed out")
1218
2305
delay -= time2 - time
1221
while sent_size < len(client.secret):
1222
# XXX handle session exception
1223
sent = session.send(client.secret[sent_size:])
1224
logger.debug(u"Sent: %d, remaining: %d",
1225
sent, len(client.secret)
1226
- (sent_size + sent))
1229
logger.info(u"Sending secret to %s", client.name)
1230
# bump the timeout as if seen
2308
session.send(client.secret)
2309
except gnutls.Error as error:
2310
logger.warning("gnutls send failed",
2314
logger.info("Sending secret to %s", client.name)
2315
# bump the timeout using extended_timeout
2316
client.bump_timeout(client.extended_timeout)
1232
2317
if self.server.use_dbus:
1233
2318
# Emit D-Bus signal
1234
2319
client.GotSecret()
1237
2322
if approval_required:
1238
2323
client.approvals_pending -= 1
2326
except gnutls.Error as error:
2327
logger.warning("GnuTLS bye failed",
1242
2331
def peer_certificate(session):
1243
2332
"Return the peer's OpenPGP certificate as a bytestring"
1244
2333
# If not an OpenPGP certificate...
1245
if (gnutls.library.functions
1246
.gnutls_certificate_type_get(session._c_object)
1247
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1248
# ...do the normal thing
1249
return session.peer_certificate
2334
if (gnutls.certificate_type_get(session._c_object)
2335
!= gnutls.CRT_OPENPGP):
2336
# ...return invalid data
1250
2338
list_size = ctypes.c_uint(1)
1251
cert_list = (gnutls.library.functions
1252
.gnutls_certificate_get_peers
2339
cert_list = (gnutls.certificate_get_peers
1253
2340
(session._c_object, ctypes.byref(list_size)))
1254
2341
if not bool(cert_list) and list_size.value != 0:
1255
raise gnutls.errors.GNUTLSError(u"error getting peer"
2342
raise gnutls.Error("error getting peer certificate")
1257
2343
if list_size.value == 0:
1259
2345
cert = cert_list[0]
1260
2346
return ctypes.string_at(cert.data, cert.size)
1263
2349
def fingerprint(openpgp):
1264
2350
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1265
2351
# New GnuTLS "datum" with the OpenPGP public key
1266
datum = (gnutls.library.types
1267
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1270
ctypes.c_uint(len(openpgp))))
2352
datum = gnutls.datum_t(
2353
ctypes.cast(ctypes.c_char_p(openpgp),
2354
ctypes.POINTER(ctypes.c_ubyte)),
2355
ctypes.c_uint(len(openpgp)))
1271
2356
# New empty GnuTLS certificate
1272
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1273
(gnutls.library.functions
1274
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2357
crt = gnutls.openpgp_crt_t()
2358
gnutls.openpgp_crt_init(ctypes.byref(crt))
1275
2359
# Import the OpenPGP public key into the certificate
1276
(gnutls.library.functions
1277
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1278
gnutls.library.constants
1279
.GNUTLS_OPENPGP_FMT_RAW))
2360
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2361
gnutls.OPENPGP_FMT_RAW)
1280
2362
# Verify the self signature in the key
1281
2363
crtverify = ctypes.c_uint()
1282
(gnutls.library.functions
1283
.gnutls_openpgp_crt_verify_self(crt, 0,
1284
ctypes.byref(crtverify)))
2364
gnutls.openpgp_crt_verify_self(crt, 0,
2365
ctypes.byref(crtverify))
1285
2366
if crtverify.value != 0:
1286
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1287
raise (gnutls.errors.CertificateSecurityError
2367
gnutls.openpgp_crt_deinit(crt)
2368
raise gnutls.CertificateSecurityError(code
1289
2370
# New buffer for the fingerprint
1290
2371
buf = ctypes.create_string_buffer(20)
1291
2372
buf_len = ctypes.c_size_t()
1292
2373
# Get the fingerprint from the certificate into the buffer
1293
(gnutls.library.functions
1294
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1295
ctypes.byref(buf_len)))
2374
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2375
ctypes.byref(buf_len))
1296
2376
# Deinit the certificate
1297
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2377
gnutls.openpgp_crt_deinit(crt)
1298
2378
# Convert the buffer to a Python bytestring
1299
2379
fpr = ctypes.string_at(buf, buf_len.value)
1300
2380
# Convert the bytestring to hexadecimal notation
1301
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2381
hex_fpr = binascii.hexlify(fpr).upper()
1305
2385
class MultiprocessingMixIn(object):
1306
2386
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1307
2388
def sub_process_main(self, request, address):
1309
2390
self.finish_request(request, address)
1311
2392
self.handle_error(request, address)
1312
2393
self.close_request(request)
1314
2395
def process_request(self, request, address):
1315
2396
"""Start a new process to process the request."""
1316
multiprocessing.Process(target = self.sub_process_main,
1317
args = (request, address)).start()
2397
proc = multiprocessing.Process(target=self.sub_process_main,
2398
args=(request, address))
1319
2403
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1320
2404
""" adds a pipe to the MixIn """
1321
2406
def process_request(self, request, client_address):
1322
2407
"""Overrides and wraps the original process_request().
1324
2409
This function creates a new pipe in self.pipe
1326
2411
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1328
super(MultiprocessingMixInWithPipe,
1329
self).process_request(request, client_address)
1330
self.add_pipe(parent_pipe)
1331
def add_pipe(self, parent_pipe):
2413
proc = MultiprocessingMixIn.process_request(self, request,
2415
self.child_pipe.close()
2416
self.add_pipe(parent_pipe, proc)
2418
def add_pipe(self, parent_pipe, proc):
1332
2419
"""Dummy function; override as necessary"""
2420
raise NotImplementedError()
1335
2423
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1336
2424
socketserver.TCPServer, object):
1337
2425
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1340
2428
enabled: Boolean; whether this server is activated yet
1341
2429
interface: None or a network interface name (string)
1342
2430
use_ipv6: Boolean; to use IPv6 or not
1344
2433
def __init__(self, server_address, RequestHandlerClass,
1345
interface=None, use_ipv6=True):
2437
"""If socketfd is set, use that file descriptor instead of
2438
creating a new one with socket.socket().
1346
2440
self.interface = interface
1348
2442
self.address_family = socket.AF_INET6
2443
if socketfd is not None:
2444
# Save the file descriptor
2445
self.socketfd = socketfd
2446
# Save the original socket.socket() function
2447
self.socket_socket = socket.socket
2449
# To implement --socket, we monkey patch socket.socket.
2451
# (When socketserver.TCPServer is a new-style class, we
2452
# could make self.socket into a property instead of monkey
2453
# patching socket.socket.)
2455
# Create a one-time-only replacement for socket.socket()
2456
@functools.wraps(socket.socket)
2457
def socket_wrapper(*args, **kwargs):
2458
# Restore original function so subsequent calls are
2460
socket.socket = self.socket_socket
2461
del self.socket_socket
2462
# This time only, return a new socket object from the
2463
# saved file descriptor.
2464
return socket.fromfd(self.socketfd, *args, **kwargs)
2465
# Replace socket.socket() function with wrapper
2466
socket.socket = socket_wrapper
2467
# The socketserver.TCPServer.__init__ will call
2468
# socket.socket(), which might be our replacement,
2469
# socket_wrapper(), if socketfd was set.
1349
2470
socketserver.TCPServer.__init__(self, server_address,
1350
2471
RequestHandlerClass)
1351
2473
def server_bind(self):
1352
2474
"""This overrides the normal server_bind() function
1353
2475
to bind to an interface if one was specified, and also NOT to
1354
2476
bind to an address or port if they were not specified."""
2477
global SO_BINDTODEVICE
1355
2478
if self.interface is not None:
1356
2479
if SO_BINDTODEVICE is None:
1357
logger.error(u"SO_BINDTODEVICE does not exist;"
1358
u" cannot bind to interface %s",
1362
self.socket.setsockopt(socket.SOL_SOCKET,
1366
except socket.error, error:
1367
if error[0] == errno.EPERM:
1368
logger.error(u"No permission to"
1369
u" bind to interface %s",
1371
elif error[0] == errno.ENOPROTOOPT:
1372
logger.error(u"SO_BINDTODEVICE not available;"
1373
u" cannot bind to interface %s",
2480
# Fall back to a hard-coded value which seems to be
2482
logger.warning("SO_BINDTODEVICE not found, trying 25")
2483
SO_BINDTODEVICE = 25
2485
self.socket.setsockopt(
2486
socket.SOL_SOCKET, SO_BINDTODEVICE,
2487
(self.interface + "\0").encode("utf-8"))
2488
except socket.error as error:
2489
if error.errno == errno.EPERM:
2490
logger.error("No permission to bind to"
2491
" interface %s", self.interface)
2492
elif error.errno == errno.ENOPROTOOPT:
2493
logger.error("SO_BINDTODEVICE not available;"
2494
" cannot bind to interface %s",
2496
elif error.errno == errno.ENODEV:
2497
logger.error("Interface %s does not exist,"
2498
" cannot bind", self.interface)
1377
2501
# Only bind(2) the socket if we really need to.
1378
2502
if self.server_address[0] or self.server_address[1]:
1379
2503
if not self.server_address[0]:
1380
2504
if self.address_family == socket.AF_INET6:
1381
any_address = u"::" # in6addr_any
2505
any_address = "::" # in6addr_any
1383
any_address = socket.INADDR_ANY
2507
any_address = "0.0.0.0" # INADDR_ANY
1384
2508
self.server_address = (any_address,
1385
2509
self.server_address[1])
1386
2510
elif not self.server_address[1]:
1387
self.server_address = (self.server_address[0],
2511
self.server_address = (self.server_address[0], 0)
1389
2512
# if self.interface:
1390
2513
# self.server_address = (self.server_address[0],
1398
2521
class MandosServer(IPv6_TCPServer):
1399
2522
"""Mandos server.
1402
2525
clients: set of Client objects
1403
2526
gnutls_priority GnuTLS priority string
1404
2527
use_dbus: Boolean; to emit D-Bus signals or not
1406
Assumes a gobject.MainLoop event loop.
2529
Assumes a GLib.MainLoop event loop.
1408
2532
def __init__(self, server_address, RequestHandlerClass,
1409
interface=None, use_ipv6=True, clients=None,
1410
gnutls_priority=None, use_dbus=True):
2536
gnutls_priority=None,
1411
2539
self.enabled = False
1412
2540
self.clients = clients
1413
2541
if self.clients is None:
1414
self.clients = set()
1415
2543
self.use_dbus = use_dbus
1416
2544
self.gnutls_priority = gnutls_priority
1417
2545
IPv6_TCPServer.__init__(self, server_address,
1418
2546
RequestHandlerClass,
1419
interface = interface,
1420
use_ipv6 = use_ipv6)
2547
interface=interface,
1421
2551
def server_activate(self):
1422
2552
if self.enabled:
1423
2553
return socketserver.TCPServer.server_activate(self)
1424
2555
def enable(self):
1425
2556
self.enabled = True
1426
def add_pipe(self, parent_pipe):
2558
def add_pipe(self, parent_pipe, proc):
1427
2559
# Call "handle_ipc" for both data and EOF events
1428
gobject.io_add_watch(parent_pipe.fileno(),
1429
gobject.IO_IN | gobject.IO_HUP,
1430
functools.partial(self.handle_ipc,
1431
parent_pipe = parent_pipe))
1433
def handle_ipc(self, source, condition, parent_pipe=None,
2561
parent_pipe.fileno(),
2562
GLib.IO_IN | GLib.IO_HUP,
2563
functools.partial(self.handle_ipc,
2564
parent_pipe=parent_pipe,
2567
def handle_ipc(self, source, condition,
1434
2570
client_object=None):
1436
gobject.IO_IN: u"IN", # There is data to read.
1437
gobject.IO_OUT: u"OUT", # Data can be written (without
1439
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1440
gobject.IO_ERR: u"ERR", # Error condition.
1441
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1442
# broken, usually for pipes and
1445
conditions_string = ' | '.join(name
1447
condition_names.iteritems()
1448
if cond & condition)
1449
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
2571
# error, or the other end of multiprocessing.Pipe has closed
2572
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2573
# Wait for other process to exit
1452
2577
# Read a request from the child
1453
2578
request = parent_pipe.recv()
1454
2579
command = request[0]
1456
2581
if command == 'init':
2582
fpr = request[1].decode("ascii")
1458
2583
address = request[2]
1460
for c in self.clients:
2585
for c in self.clients.values():
1461
2586
if c.fingerprint == fpr:
1465
logger.warning(u"Client not found for fingerprint: %s, ad"
1466
u"dress: %s", fpr, address)
2590
logger.info("Client not found for fingerprint: %s, ad"
2591
"dress: %s", fpr, address)
1467
2592
if self.use_dbus:
1468
2593
# Emit D-Bus signal
1469
mandos_dbus_service.ClientNotFound(fpr, address)
2594
mandos_dbus_service.ClientNotFound(fpr,
1470
2596
parent_pipe.send(False)
1473
gobject.io_add_watch(parent_pipe.fileno(),
1474
gobject.IO_IN | gobject.IO_HUP,
1475
functools.partial(self.handle_ipc,
1476
parent_pipe = parent_pipe,
1477
client_object = client))
2600
parent_pipe.fileno(),
2601
GLib.IO_IN | GLib.IO_HUP,
2602
functools.partial(self.handle_ipc,
2603
parent_pipe=parent_pipe,
2605
client_object=client))
1478
2606
parent_pipe.send(True)
1479
# remove the old hook in favor of the new above hook on same fileno
2607
# remove the old hook in favor of the new above hook on
1481
2610
if command == 'funcall':
1482
2611
funcname = request[1]
1483
2612
args = request[2]
1484
2613
kwargs = request[3]
1486
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2615
parent_pipe.send(('data', getattr(client_object,
1488
2619
if command == 'getattr':
1489
2620
attrname = request[1]
1490
if callable(client_object.__getattribute__(attrname)):
1491
parent_pipe.send(('function',))
2621
if isinstance(client_object.__getattribute__(attrname),
2622
collections.Callable):
2623
parent_pipe.send(('function', ))
1493
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2626
'data', client_object.__getattribute__(attrname)))
1495
2628
if command == 'setattr':
1496
2629
attrname = request[1]
1497
2630
value = request[2]
1498
2631
setattr(client_object, attrname, value)
2636
def rfc3339_duration_to_delta(duration):
2637
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2639
>>> rfc3339_duration_to_delta("P7D")
2640
datetime.timedelta(7)
2641
>>> rfc3339_duration_to_delta("PT60S")
2642
datetime.timedelta(0, 60)
2643
>>> rfc3339_duration_to_delta("PT60M")
2644
datetime.timedelta(0, 3600)
2645
>>> rfc3339_duration_to_delta("PT24H")
2646
datetime.timedelta(1)
2647
>>> rfc3339_duration_to_delta("P1W")
2648
datetime.timedelta(7)
2649
>>> rfc3339_duration_to_delta("PT5M30S")
2650
datetime.timedelta(0, 330)
2651
>>> rfc3339_duration_to_delta("P1DT3M20S")
2652
datetime.timedelta(1, 200)
2655
# Parsing an RFC 3339 duration with regular expressions is not
2656
# possible - there would have to be multiple places for the same
2657
# values, like seconds. The current code, while more esoteric, is
2658
# cleaner without depending on a parsing library. If Python had a
2659
# built-in library for parsing we would use it, but we'd like to
2660
# avoid excessive use of external libraries.
2662
# New type for defining tokens, syntax, and semantics all-in-one
2663
Token = collections.namedtuple("Token", (
2664
"regexp", # To match token; if "value" is not None, must have
2665
# a "group" containing digits
2666
"value", # datetime.timedelta or None
2667
"followers")) # Tokens valid after this token
2668
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2669
# the "duration" ABNF definition in RFC 3339, Appendix A.
2670
token_end = Token(re.compile(r"$"), None, frozenset())
2671
token_second = Token(re.compile(r"(\d+)S"),
2672
datetime.timedelta(seconds=1),
2673
frozenset((token_end, )))
2674
token_minute = Token(re.compile(r"(\d+)M"),
2675
datetime.timedelta(minutes=1),
2676
frozenset((token_second, token_end)))
2677
token_hour = Token(re.compile(r"(\d+)H"),
2678
datetime.timedelta(hours=1),
2679
frozenset((token_minute, token_end)))
2680
token_time = Token(re.compile(r"T"),
2682
frozenset((token_hour, token_minute,
2684
token_day = Token(re.compile(r"(\d+)D"),
2685
datetime.timedelta(days=1),
2686
frozenset((token_time, token_end)))
2687
token_month = Token(re.compile(r"(\d+)M"),
2688
datetime.timedelta(weeks=4),
2689
frozenset((token_day, token_end)))
2690
token_year = Token(re.compile(r"(\d+)Y"),
2691
datetime.timedelta(weeks=52),
2692
frozenset((token_month, token_end)))
2693
token_week = Token(re.compile(r"(\d+)W"),
2694
datetime.timedelta(weeks=1),
2695
frozenset((token_end, )))
2696
token_duration = Token(re.compile(r"P"), None,
2697
frozenset((token_year, token_month,
2698
token_day, token_time,
2700
# Define starting values:
2702
value = datetime.timedelta()
2704
# Following valid tokens
2705
followers = frozenset((token_duration, ))
2706
# String left to parse
2708
# Loop until end token is found
2709
while found_token is not token_end:
2710
# Search for any currently valid tokens
2711
for token in followers:
2712
match = token.regexp.match(s)
2713
if match is not None:
2715
if token.value is not None:
2716
# Value found, parse digits
2717
factor = int(match.group(1), 10)
2718
# Add to value so far
2719
value += factor * token.value
2720
# Strip token from string
2721
s = token.regexp.sub("", s, 1)
2724
# Set valid next tokens
2725
followers = found_token.followers
2728
# No currently valid tokens were found
2729
raise ValueError("Invalid RFC 3339 duration: {!r}"
1503
2735
def string_to_delta(interval):
1504
2736
"""Parse a string and return a datetime.timedelta
1506
>>> string_to_delta(u'7d')
2738
>>> string_to_delta('7d')
1507
2739
datetime.timedelta(7)
1508
>>> string_to_delta(u'60s')
2740
>>> string_to_delta('60s')
1509
2741
datetime.timedelta(0, 60)
1510
>>> string_to_delta(u'60m')
2742
>>> string_to_delta('60m')
1511
2743
datetime.timedelta(0, 3600)
1512
>>> string_to_delta(u'24h')
2744
>>> string_to_delta('24h')
1513
2745
datetime.timedelta(1)
1514
>>> string_to_delta(u'1w')
2746
>>> string_to_delta('1w')
1515
2747
datetime.timedelta(7)
1516
>>> string_to_delta(u'5m 30s')
2748
>>> string_to_delta('5m 30s')
1517
2749
datetime.timedelta(0, 330)
2753
return rfc3339_duration_to_delta(interval)
1519
2757
timevalue = datetime.timedelta(0)
1520
2758
for s in interval.split():
1522
suffix = unicode(s[-1])
1523
2761
value = int(s[:-1])
1525
2763
delta = datetime.timedelta(value)
1526
elif suffix == u"s":
1527
2765
delta = datetime.timedelta(0, value)
1528
elif suffix == u"m":
1529
2767
delta = datetime.timedelta(0, 0, 0, 0, value)
1530
elif suffix == u"h":
1531
2769
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1532
elif suffix == u"w":
1533
2771
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1535
raise ValueError(u"Unknown suffix %r" % suffix)
1536
except (ValueError, IndexError), e:
1537
raise ValueError(e.message)
2773
raise ValueError("Unknown suffix {!r}".format(suffix))
2774
except IndexError as e:
2775
raise ValueError(*(e.args))
1538
2776
timevalue += delta
1539
2777
return timevalue
1542
def if_nametoindex(interface):
1543
"""Call the C function if_nametoindex(), or equivalent
1545
Note: This function cannot accept a unicode string."""
1546
global if_nametoindex
1548
if_nametoindex = (ctypes.cdll.LoadLibrary
1549
(ctypes.util.find_library(u"c"))
1551
except (OSError, AttributeError):
1552
logger.warning(u"Doing if_nametoindex the hard way")
1553
def if_nametoindex(interface):
1554
"Get an interface index the hard way, i.e. using fcntl()"
1555
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1556
with contextlib.closing(socket.socket()) as s:
1557
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1558
struct.pack(str(u"16s16x"),
1560
interface_index = struct.unpack(str(u"I"),
1562
return interface_index
1563
return if_nametoindex(interface)
1566
def daemon(nochdir = False, noclose = False):
2780
def daemon(nochdir=False, noclose=False):
1567
2781
"""See daemon(3). Standard BSD Unix function.
1569
2783
This should really exist as os.daemon, but it doesn't (yet)."""
1573
2787
if not nochdir:
1577
2791
if not noclose:
1578
2792
# Close all standard open file descriptors
1579
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2793
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1580
2794
if not stat.S_ISCHR(os.fstat(null).st_mode):
1581
2795
raise OSError(errno.ENODEV,
1582
u"%s not a character device"
2796
"{} not a character device"
2797
.format(os.devnull))
1584
2798
os.dup2(null, sys.stdin.fileno())
1585
2799
os.dup2(null, sys.stdout.fileno())
1586
2800
os.dup2(null, sys.stderr.fileno())
1593
2807
##################################################################
1594
2808
# Parsing of options, both command line and config file
1596
parser = optparse.OptionParser(version = "%%prog %s" % version)
1597
parser.add_option("-i", u"--interface", type=u"string",
1598
metavar="IF", help=u"Bind to interface IF")
1599
parser.add_option("-a", u"--address", type=u"string",
1600
help=u"Address to listen for requests on")
1601
parser.add_option("-p", u"--port", type=u"int",
1602
help=u"Port number to receive requests on")
1603
parser.add_option("--check", action=u"store_true",
1604
help=u"Run self-test")
1605
parser.add_option("--debug", action=u"store_true",
1606
help=u"Debug mode; run in foreground and log to"
1608
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1609
u" priority string (see GnuTLS documentation)")
1610
parser.add_option("--servicename", type=u"string",
1611
metavar=u"NAME", help=u"Zeroconf service name")
1612
parser.add_option("--configdir", type=u"string",
1613
default=u"/etc/mandos", metavar=u"DIR",
1614
help=u"Directory to search for configuration"
1616
parser.add_option("--no-dbus", action=u"store_false",
1617
dest=u"use_dbus", help=u"Do not provide D-Bus"
1618
u" system bus interface")
1619
parser.add_option("--no-ipv6", action=u"store_false",
1620
dest=u"use_ipv6", help=u"Do not use IPv6")
1621
options = parser.parse_args()[0]
2810
parser = argparse.ArgumentParser()
2811
parser.add_argument("-v", "--version", action="version",
2812
version="%(prog)s {}".format(version),
2813
help="show version number and exit")
2814
parser.add_argument("-i", "--interface", metavar="IF",
2815
help="Bind to interface IF")
2816
parser.add_argument("-a", "--address",
2817
help="Address to listen for requests on")
2818
parser.add_argument("-p", "--port", type=int,
2819
help="Port number to receive requests on")
2820
parser.add_argument("--check", action="store_true",
2821
help="Run self-test")
2822
parser.add_argument("--debug", action="store_true",
2823
help="Debug mode; run in foreground and log"
2824
" to terminal", default=None)
2825
parser.add_argument("--debuglevel", metavar="LEVEL",
2826
help="Debug level for stdout output")
2827
parser.add_argument("--priority", help="GnuTLS"
2828
" priority string (see GnuTLS documentation)")
2829
parser.add_argument("--servicename",
2830
metavar="NAME", help="Zeroconf service name")
2831
parser.add_argument("--configdir",
2832
default="/etc/mandos", metavar="DIR",
2833
help="Directory to search for configuration"
2835
parser.add_argument("--no-dbus", action="store_false",
2836
dest="use_dbus", help="Do not provide D-Bus"
2837
" system bus interface", default=None)
2838
parser.add_argument("--no-ipv6", action="store_false",
2839
dest="use_ipv6", help="Do not use IPv6",
2841
parser.add_argument("--no-restore", action="store_false",
2842
dest="restore", help="Do not restore stored"
2843
" state", default=None)
2844
parser.add_argument("--socket", type=int,
2845
help="Specify a file descriptor to a network"
2846
" socket to use instead of creating one")
2847
parser.add_argument("--statedir", metavar="DIR",
2848
help="Directory to save/restore state in")
2849
parser.add_argument("--foreground", action="store_true",
2850
help="Run in foreground", default=None)
2851
parser.add_argument("--no-zeroconf", action="store_false",
2852
dest="zeroconf", help="Do not use Zeroconf",
2855
options = parser.parse_args()
1623
2857
if options.check:
2859
fail_count, test_count = doctest.testmod()
2860
sys.exit(os.EX_OK if fail_count == 0 else 1)
1628
2862
# Default values for config file for server-global settings
1629
server_defaults = { u"interface": u"",
1634
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1635
u"servicename": u"Mandos",
1636
u"use_dbus": u"True",
1637
u"use_ipv6": u"True",
2863
server_defaults = {"interface": "",
2868
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2869
":+SIGN-DSA-SHA256",
2870
"servicename": "Mandos",
2876
"statedir": "/var/lib/mandos",
2877
"foreground": "False",
1640
2881
# Parse config file for server-global settings
1641
2882
server_config = configparser.SafeConfigParser(server_defaults)
1642
2883
del server_defaults
1643
server_config.read(os.path.join(options.configdir,
2884
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1645
2885
# Convert the SafeConfigParser object to a dict
1646
2886
server_settings = server_config.defaults()
1647
2887
# Use the appropriate methods on the non-string config options
1648
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1649
server_settings[option] = server_config.getboolean(u"DEFAULT",
2888
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2889
"foreground", "zeroconf"):
2890
server_settings[option] = server_config.getboolean("DEFAULT",
1651
2892
if server_settings["port"]:
1652
server_settings["port"] = server_config.getint(u"DEFAULT",
2893
server_settings["port"] = server_config.getint("DEFAULT",
2895
if server_settings["socket"]:
2896
server_settings["socket"] = server_config.getint("DEFAULT",
2898
# Later, stdin will, and stdout and stderr might, be dup'ed
2899
# over with an opened os.devnull. But we don't want this to
2900
# happen with a supplied network socket.
2901
if 0 <= server_settings["socket"] <= 2:
2902
server_settings["socket"] = os.dup(server_settings
1654
2904
del server_config
1656
2906
# Override the settings from the config file with command line
1657
2907
# options, if set.
1658
for option in (u"interface", u"address", u"port", u"debug",
1659
u"priority", u"servicename", u"configdir",
1660
u"use_dbus", u"use_ipv6"):
2908
for option in ("interface", "address", "port", "debug",
2909
"priority", "servicename", "configdir", "use_dbus",
2910
"use_ipv6", "debuglevel", "restore", "statedir",
2911
"socket", "foreground", "zeroconf"):
1661
2912
value = getattr(options, option)
1662
2913
if value is not None:
1663
2914
server_settings[option] = value
1665
2916
# Force all strings to be unicode
1666
2917
for option in server_settings.keys():
1667
if type(server_settings[option]) is str:
1668
server_settings[option] = unicode(server_settings[option])
2918
if isinstance(server_settings[option], bytes):
2919
server_settings[option] = (server_settings[option]
2921
# Force all boolean options to be boolean
2922
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2923
"foreground", "zeroconf"):
2924
server_settings[option] = bool(server_settings[option])
2925
# Debug implies foreground
2926
if server_settings["debug"]:
2927
server_settings["foreground"] = True
1669
2928
# Now we have our good server settings in "server_settings"
1671
2930
##################################################################
2932
if (not server_settings["zeroconf"]
2933
and not (server_settings["port"]
2934
or server_settings["socket"] != "")):
2935
parser.error("Needs port or socket to work without Zeroconf")
1673
2937
# For convenience
1674
debug = server_settings[u"debug"]
1675
use_dbus = server_settings[u"use_dbus"]
1676
use_ipv6 = server_settings[u"use_ipv6"]
1679
syslogger.setLevel(logging.WARNING)
1680
console.setLevel(logging.WARNING)
1682
if server_settings[u"servicename"] != u"Mandos":
1683
syslogger.setFormatter(logging.Formatter
1684
(u'Mandos (%s) [%%(process)d]:'
1685
u' %%(levelname)s: %%(message)s'
1686
% server_settings[u"servicename"]))
2938
debug = server_settings["debug"]
2939
debuglevel = server_settings["debuglevel"]
2940
use_dbus = server_settings["use_dbus"]
2941
use_ipv6 = server_settings["use_ipv6"]
2942
stored_state_path = os.path.join(server_settings["statedir"],
2944
foreground = server_settings["foreground"]
2945
zeroconf = server_settings["zeroconf"]
2948
initlogger(debug, logging.DEBUG)
2953
level = getattr(logging, debuglevel.upper())
2954
initlogger(debug, level)
2956
if server_settings["servicename"] != "Mandos":
2957
syslogger.setFormatter(
2958
logging.Formatter('Mandos ({}) [%(process)d]:'
2959
' %(levelname)s: %(message)s'.format(
2960
server_settings["servicename"])))
1688
2962
# Parse config file with clients
1689
client_defaults = { u"timeout": u"1h",
1691
u"checker": u"fping -q -- %%(host)s",
1693
u"approved_delay": u"0s",
1694
u"approved_duration": u"1s",
1696
client_config = configparser.SafeConfigParser(client_defaults)
1697
client_config.read(os.path.join(server_settings[u"configdir"],
2963
client_config = configparser.SafeConfigParser(Client
2965
client_config.read(os.path.join(server_settings["configdir"],
1700
2968
global mandos_dbus_service
1701
2969
mandos_dbus_service = None
1703
tcp_server = MandosServer((server_settings[u"address"],
1704
server_settings[u"port"]),
1706
interface=server_settings[u"interface"],
1709
server_settings[u"priority"],
1711
pidfilename = u"/var/run/mandos.pid"
1713
pidfile = open(pidfilename, u"w")
1715
logger.error(u"Could not open file %r", pidfilename)
1718
uid = pwd.getpwnam(u"_mandos").pw_uid
1719
gid = pwd.getpwnam(u"_mandos").pw_gid
1722
uid = pwd.getpwnam(u"mandos").pw_uid
1723
gid = pwd.getpwnam(u"mandos").pw_gid
2972
if server_settings["socket"] != "":
2973
socketfd = server_settings["socket"]
2974
tcp_server = MandosServer(
2975
(server_settings["address"], server_settings["port"]),
2977
interface=(server_settings["interface"] or None),
2979
gnutls_priority=server_settings["priority"],
2983
pidfilename = "/run/mandos.pid"
2984
if not os.path.isdir("/run/."):
2985
pidfilename = "/var/run/mandos.pid"
2988
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2989
except IOError as e:
2990
logger.error("Could not open file %r", pidfilename,
2993
for name, group in (("_mandos", "_mandos"),
2994
("mandos", "mandos"),
2995
("nobody", "nogroup")):
2997
uid = pwd.getpwnam(name).pw_uid
2998
gid = pwd.getpwnam(group).pw_gid
1724
3000
except KeyError:
1726
uid = pwd.getpwnam(u"nobody").pw_uid
1727
gid = pwd.getpwnam(u"nobody").pw_gid
1734
except OSError, error:
1735
if error[0] != errno.EPERM:
1738
# Enable all possible GnuTLS debugging
3009
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3011
except OSError as error:
3012
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3013
.format(uid, gid, os.strerror(error.errno)))
3014
if error.errno != errno.EPERM:
3018
# Enable all possible GnuTLS debugging
1740
3020
# "Use a log level over 10 to enable all debugging options."
1741
3021
# - GnuTLS manual
1742
gnutls.library.functions.gnutls_global_set_log_level(11)
1744
@gnutls.library.types.gnutls_log_func
3022
gnutls.global_set_log_level(11)
1745
3025
def debug_gnutls(level, string):
1746
logger.debug(u"GnuTLS: %s", string[:-1])
1748
(gnutls.library.functions
1749
.gnutls_global_set_log_function(debug_gnutls))
3026
logger.debug("GnuTLS: %s", string[:-1])
3028
gnutls.global_set_log_function(debug_gnutls)
3030
# Redirect stdin so all checkers get /dev/null
3031
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3032
os.dup2(null, sys.stdin.fileno())
3036
# Need to fork before connecting to D-Bus
3038
# Close all input and output, do double fork, etc.
3041
# multiprocessing will use threads, so before we use GLib we need
3042
# to inform GLib that threads will be used.
1751
3045
global main_loop
1752
3046
# From the Avahi example code
1753
DBusGMainLoop(set_as_default=True )
1754
main_loop = gobject.MainLoop()
3047
DBusGMainLoop(set_as_default=True)
3048
main_loop = GLib.MainLoop()
1755
3049
bus = dbus.SystemBus()
1756
3050
# End of Avahi example code
1759
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1760
bus, do_not_queue=True)
1761
except dbus.exceptions.NameExistsException, e:
1762
logger.error(unicode(e) + u", disabling D-Bus")
3053
bus_name = dbus.service.BusName("se.recompile.Mandos",
3056
old_bus_name = dbus.service.BusName(
3057
"se.bsnet.fukt.Mandos", bus,
3059
except dbus.exceptions.DBusException as e:
3060
logger.error("Disabling D-Bus:", exc_info=e)
1763
3061
use_dbus = False
1764
server_settings[u"use_dbus"] = False
3062
server_settings["use_dbus"] = False
1765
3063
tcp_server.use_dbus = False
1766
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1767
service = AvahiService(name = server_settings[u"servicename"],
1768
servicetype = u"_mandos._tcp",
1769
protocol = protocol, bus = bus)
1770
if server_settings["interface"]:
1771
service.interface = (if_nametoindex
1772
(str(server_settings[u"interface"])))
3065
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3066
service = AvahiServiceToSyslog(
3067
name=server_settings["servicename"],
3068
servicetype="_mandos._tcp",
3071
if server_settings["interface"]:
3072
service.interface = if_nametoindex(
3073
server_settings["interface"].encode("utf-8"))
3075
global multiprocessing_manager
3076
multiprocessing_manager = multiprocessing.Manager()
1774
3078
client_class = Client
1776
client_class = functools.partial(ClientDBus, bus = bus)
1777
def client_config_items(config, section):
1778
special_settings = {
1779
"approved_by_default":
1780
lambda: config.getboolean(section,
1781
"approved_by_default"),
1783
for name, value in config.items(section):
3080
client_class = functools.partial(ClientDBus, bus=bus)
3082
client_settings = Client.config_parser(client_config)
3083
old_client_settings = {}
3086
# This is used to redirect stdout and stderr for checker processes
3088
wnull = open(os.devnull, "w") # A writable /dev/null
3089
# Only used if server is running in foreground but not in debug
3091
if debug or not foreground:
3094
# Get client data and settings from last running state.
3095
if server_settings["restore"]:
3097
with open(stored_state_path, "rb") as stored_state:
3098
if sys.version_info.major == 2:
3099
clients_data, old_client_settings = pickle.load(
3102
bytes_clients_data, bytes_old_client_settings = (
3103
pickle.load(stored_state, encoding="bytes"))
3104
# Fix bytes to strings
3107
clients_data = {(key.decode("utf-8")
3108
if isinstance(key, bytes)
3111
bytes_clients_data.items()}
3112
del bytes_clients_data
3113
for key in clients_data:
3114
value = {(k.decode("utf-8")
3115
if isinstance(k, bytes) else k): v
3117
clients_data[key].items()}
3118
clients_data[key] = value
3120
value["client_structure"] = [
3122
if isinstance(s, bytes)
3124
value["client_structure"]]
3126
for k in ("name", "host"):
3127
if isinstance(value[k], bytes):
3128
value[k] = value[k].decode("utf-8")
3129
# old_client_settings
3131
old_client_settings = {
3132
(key.decode("utf-8")
3133
if isinstance(key, bytes)
3136
bytes_old_client_settings.items()}
3137
del bytes_old_client_settings
3139
for value in old_client_settings.values():
3140
if isinstance(value["host"], bytes):
3141
value["host"] = (value["host"]
3143
os.remove(stored_state_path)
3144
except IOError as e:
3145
if e.errno == errno.ENOENT:
3146
logger.warning("Could not load persistent state:"
3147
" {}".format(os.strerror(e.errno)))
3149
logger.critical("Could not load persistent state:",
3152
except EOFError as e:
3153
logger.warning("Could not load persistent state: "
3157
with PGPEngine() as pgp:
3158
for client_name, client in clients_data.items():
3159
# Skip removed clients
3160
if client_name not in client_settings:
3163
# Decide which value to use after restoring saved state.
3164
# We have three different values: Old config file,
3165
# new config file, and saved state.
3166
# New config value takes precedence if it differs from old
3167
# config value, otherwise use saved state.
3168
for name, value in client_settings[client_name].items():
3170
# For each value in new config, check if it
3171
# differs from the old config value (Except for
3172
# the "secret" attribute)
3173
if (name != "secret"
3175
old_client_settings[client_name][name])):
3176
client[name] = value
3180
# Clients who has passed its expire date can still be
3181
# enabled if its last checker was successful. A Client
3182
# whose checker succeeded before we stored its state is
3183
# assumed to have successfully run all checkers during
3185
if client["enabled"]:
3186
if datetime.datetime.utcnow() >= client["expires"]:
3187
if not client["last_checked_ok"]:
3189
"disabling client {} - Client never "
3190
"performed a successful checker".format(
3192
client["enabled"] = False
3193
elif client["last_checker_status"] != 0:
3195
"disabling client {} - Client last"
3196
" checker failed with error code"
3199
client["last_checker_status"]))
3200
client["enabled"] = False
3202
client["expires"] = (
3203
datetime.datetime.utcnow()
3204
+ client["timeout"])
3205
logger.debug("Last checker succeeded,"
3206
" keeping {} enabled".format(
1785
yield (name, special_settings[name]())
1789
tcp_server.clients.update(set(
1790
client_class(name = section,
1791
config= dict(client_config_items(
1792
client_config, section)))
1793
for section in client_config.sections()))
3209
client["secret"] = pgp.decrypt(
3210
client["encrypted_secret"],
3211
client_settings[client_name]["secret"])
3213
# If decryption fails, we use secret from new settings
3214
logger.debug("Failed to decrypt {} old secret".format(
3216
client["secret"] = (client_settings[client_name]
3219
# Add/remove clients based on new changes made to config
3220
for client_name in (set(old_client_settings)
3221
- set(client_settings)):
3222
del clients_data[client_name]
3223
for client_name in (set(client_settings)
3224
- set(old_client_settings)):
3225
clients_data[client_name] = client_settings[client_name]
3227
# Create all client objects
3228
for client_name, client in clients_data.items():
3229
tcp_server.clients[client_name] = client_class(
3232
server_settings=server_settings)
1794
3234
if not tcp_server.clients:
1795
logger.warning(u"No clients defined")
1798
# Redirect stdin so all checkers get /dev/null
1799
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1800
os.dup2(null, sys.stdin.fileno())
1804
# No console logging
1805
logger.removeHandler(console)
1806
# Close all input and output, do double fork, etc.
3235
logger.warning("No clients defined")
3238
if pidfile is not None:
1811
3239
pid = os.getpid()
1812
pidfile.write(str(pid) + "\n")
3242
print(pid, file=pidfile)
3244
logger.error("Could not write to file %r with PID %d",
1815
logger.error(u"Could not write to file %r with PID %d",
1818
# "pidfile" was never created
1823
signal.signal(signal.SIGINT, signal.SIG_IGN)
1824
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1825
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3249
for termsig in (signal.SIGHUP, signal.SIGTERM):
3250
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3251
lambda: main_loop.quit() and False)
1828
class MandosDBusService(dbus.service.Object):
3255
@alternate_dbus_interfaces(
3256
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3257
class MandosDBusService(DBusObjectWithObjectManager):
1829
3258
"""A D-Bus proxy object"""
1830
3260
def __init__(self):
1831
dbus.service.Object.__init__(self, bus, u"/")
1832
_interface = u"se.bsnet.fukt.Mandos"
1834
@dbus.service.signal(_interface, signature=u"o")
3261
dbus.service.Object.__init__(self, bus, "/")
3263
_interface = "se.recompile.Mandos"
3265
@dbus.service.signal(_interface, signature="o")
1835
3266
def ClientAdded(self, objpath):
1839
@dbus.service.signal(_interface, signature=u"ss")
3270
@dbus.service.signal(_interface, signature="ss")
1840
3271
def ClientNotFound(self, fingerprint, address):
1844
@dbus.service.signal(_interface, signature=u"os")
3275
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3277
@dbus.service.signal(_interface, signature="os")
1845
3278
def ClientRemoved(self, objpath, name):
1849
@dbus.service.method(_interface, out_signature=u"ao")
3282
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3284
@dbus.service.method(_interface, out_signature="ao")
1850
3285
def GetAllClients(self):
1852
return dbus.Array(c.dbus_object_path
1853
for c in tcp_server.clients)
3287
return dbus.Array(c.dbus_object_path for c in
3288
tcp_server.clients.values())
3290
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
1855
3292
@dbus.service.method(_interface,
1856
out_signature=u"a{oa{sv}}")
3293
out_signature="a{oa{sv}}")
1857
3294
def GetAllClientsWithProperties(self):
1859
3296
return dbus.Dictionary(
1860
((c.dbus_object_path, c.GetAll(u""))
1861
for c in tcp_server.clients),
1862
signature=u"oa{sv}")
1864
@dbus.service.method(_interface, in_signature=u"o")
3297
{c.dbus_object_path: c.GetAll(
3298
"se.recompile.Mandos.Client")
3299
for c in tcp_server.clients.values()},
3302
@dbus.service.method(_interface, in_signature="o")
1865
3303
def RemoveClient(self, object_path):
1867
for c in tcp_server.clients:
3305
for c in tcp_server.clients.values():
1868
3306
if c.dbus_object_path == object_path:
1869
tcp_server.clients.remove(c)
3307
del tcp_server.clients[c.name]
1870
3308
c.remove_from_connection()
1871
# Don't signal anything except ClientRemoved
3309
# Don't signal the disabling
1872
3310
c.disable(quiet=True)
1874
self.ClientRemoved(object_path, c.name)
3311
# Emit D-Bus signal for removal
3312
self.client_removed_signal(c)
1876
3314
raise KeyError(object_path)
3318
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3319
out_signature="a{oa{sa{sv}}}")
3320
def GetManagedObjects(self):
3322
return dbus.Dictionary(
3323
{client.dbus_object_path:
3325
{interface: client.GetAll(interface)
3327
client._get_all_interface_names()})
3328
for client in tcp_server.clients.values()})
3330
def client_added_signal(self, client):
3331
"""Send the new standard signal and the old signal"""
3333
# New standard signal
3334
self.InterfacesAdded(
3335
client.dbus_object_path,
3337
{interface: client.GetAll(interface)
3339
client._get_all_interface_names()}))
3341
self.ClientAdded(client.dbus_object_path)
3343
def client_removed_signal(self, client):
3344
"""Send the new standard signal and the old signal"""
3346
# New standard signal
3347
self.InterfacesRemoved(
3348
client.dbus_object_path,
3349
client._get_all_interface_names())
3351
self.ClientRemoved(client.dbus_object_path,
1880
3354
mandos_dbus_service = MandosDBusService()
3356
# Save modules to variables to exempt the modules from being
3357
# unloaded before the function registered with atexit() is run.
3358
mp = multiprocessing
1883
3362
"Cleanup function; run on exit"
3366
mp.active_children()
3368
if not (tcp_server.clients or client_settings):
3371
# Store client before exiting. Secrets are encrypted with key
3372
# based on what config file has. If config file is
3373
# removed/edited, old secret will thus be unrecovable.
3375
with PGPEngine() as pgp:
3376
for client in tcp_server.clients.values():
3377
key = client_settings[client.name]["secret"]
3378
client.encrypted_secret = pgp.encrypt(client.secret,
3382
# A list of attributes that can not be pickled
3384
exclude = {"bus", "changedstate", "secret",
3385
"checker", "server_settings"}
3386
for name, typ in inspect.getmembers(dbus.service
3390
client_dict["encrypted_secret"] = (client
3392
for attr in client.client_structure:
3393
if attr not in exclude:
3394
client_dict[attr] = getattr(client, attr)
3396
clients[client.name] = client_dict
3397
del client_settings[client.name]["secret"]
3400
with tempfile.NamedTemporaryFile(
3404
dir=os.path.dirname(stored_state_path),
3405
delete=False) as stored_state:
3406
pickle.dump((clients, client_settings), stored_state,
3408
tempname = stored_state.name
3409
os.rename(tempname, stored_state_path)
3410
except (IOError, OSError) as e:
3416
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3417
logger.warning("Could not save persistent state: {}"
3418
.format(os.strerror(e.errno)))
3420
logger.warning("Could not save persistent state:",
3424
# Delete all clients, and settings from config
1886
3425
while tcp_server.clients:
1887
client = tcp_server.clients.pop()
3426
name, client = tcp_server.clients.popitem()
1889
3428
client.remove_from_connection()
1890
client.disable_hook = None
1891
# Don't signal anything except ClientRemoved
3429
# Don't signal the disabling
1892
3430
client.disable(quiet=True)
3431
# Emit D-Bus signal for removal
1895
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
3433
mandos_dbus_service.client_removed_signal(client)
3434
client_settings.clear()
1898
3436
atexit.register(cleanup)
1900
for client in tcp_server.clients:
3438
for client in tcp_server.clients.values():
1903
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3440
# Emit D-Bus signal for adding
3441
mandos_dbus_service.client_added_signal(client)
3442
# Need to initiate checking of clients
3444
client.init_checker()
1906
3446
tcp_server.enable()
1907
3447
tcp_server.server_activate()
1909
3449
# Find out what port we got
1910
service.port = tcp_server.socket.getsockname()[1]
3451
service.port = tcp_server.socket.getsockname()[1]
1912
logger.info(u"Now listening on address %r, port %d,"
1913
" flowinfo %d, scope_id %d"
1914
% tcp_server.socket.getsockname())
3453
logger.info("Now listening on address %r, port %d,"
3454
" flowinfo %d, scope_id %d",
3455
*tcp_server.socket.getsockname())
1916
logger.info(u"Now listening on address %r, port %d"
1917
% tcp_server.socket.getsockname())
1919
#service.interface = tcp_server.socket.getsockname()[3]
3457
logger.info("Now listening on address %r, port %d",
3458
*tcp_server.socket.getsockname())
3460
# service.interface = tcp_server.socket.getsockname()[3]
1922
# From the Avahi example code
1925
except dbus.exceptions.DBusException, error:
1926
logger.critical(u"DBusException: %s", error)
1929
# End of Avahi example code
1931
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1932
lambda *args, **kwargs:
1933
(tcp_server.handle_request
1934
(*args[2:], **kwargs) or True))
1936
logger.debug(u"Starting main loop")
3464
# From the Avahi example code
3467
except dbus.exceptions.DBusException as error:
3468
logger.critical("D-Bus Exception", exc_info=error)
3471
# End of Avahi example code
3473
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3474
lambda *args, **kwargs:
3475
(tcp_server.handle_request
3476
(*args[2:], **kwargs) or True))
3478
logger.debug("Starting main loop")
1937
3479
main_loop.run()
1938
except AvahiError, error:
1939
logger.critical(u"AvahiError: %s", error)
3480
except AvahiError as error:
3481
logger.critical("Avahi Error", exc_info=error)
1942
3484
except KeyboardInterrupt:
1945
logger.debug(u"Server received KeyboardInterrupt")
1946
logger.debug(u"Server exiting")
3486
print("", file=sys.stderr)
3487
logger.debug("Server received KeyboardInterrupt")
3488
logger.debug("Server exiting")
1947
3489
# Must run before the D-Bus bus name gets deregistered
1950
3493
if __name__ == '__main__':