357
192
dbus.UInt16(self.port),
358
193
avahi.string_array_to_txt_array(self.TXT))
359
194
self.group.Commit()
361
195
def entry_group_state_changed(self, state, error):
362
196
"""Derived from the Avahi example code"""
363
logger.debug("Avahi entry group state change: %i", state)
197
logger.debug(u"Avahi entry group state change: %i", state)
365
199
if state == avahi.ENTRY_GROUP_ESTABLISHED:
366
logger.debug("Zeroconf service established.")
200
logger.debug(u"Zeroconf service established.")
367
201
elif state == avahi.ENTRY_GROUP_COLLISION:
368
logger.info("Zeroconf service name collision.")
202
logger.warning(u"Zeroconf service name collision.")
370
204
elif state == avahi.ENTRY_GROUP_FAILURE:
371
logger.critical("Avahi: Error in group state changed %s",
373
raise AvahiGroupError("State changed: {!s}".format(error))
205
logger.critical(u"Avahi: Error in group state changed %s",
207
raise AvahiGroupError(u"State changed: %s"
375
209
def cleanup(self):
376
210
"""Derived from the Avahi example code"""
377
211
if self.group is not None:
380
except (dbus.exceptions.UnknownMethodException,
381
dbus.exceptions.DBusException):
383
213
self.group = None
386
def server_state_changed(self, state, error=None):
214
def server_state_changed(self, state):
387
215
"""Derived from the Avahi example code"""
388
logger.debug("Avahi server state change: %i", state)
390
avahi.SERVER_INVALID: "Zeroconf server invalid",
391
avahi.SERVER_REGISTERING: None,
392
avahi.SERVER_COLLISION: "Zeroconf server name collision",
393
avahi.SERVER_FAILURE: "Zeroconf server failure",
395
if state in bad_states:
396
if bad_states[state] is not None:
398
logger.error(bad_states[state])
400
logger.error(bad_states[state] + ": %r", error)
216
logger.debug(u"Avahi server state change: %i", state)
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
402
220
elif state == avahi.SERVER_RUNNING:
405
except dbus.exceptions.DBusException as error:
406
if (error.get_dbus_name()
407
== "org.freedesktop.Avahi.CollisionError"):
408
logger.info("Local Zeroconf service name"
410
return self.rename(remove=False)
412
logger.critical("D-Bus Exception", exc_info=error)
417
logger.debug("Unknown state: %r", state)
419
logger.debug("Unknown state: %r: %r", state, error)
421
222
def activate(self):
422
223
"""Derived from the Avahi example code"""
423
224
if self.server is None:
424
225
self.server = dbus.Interface(
425
226
self.bus.get_object(avahi.DBUS_NAME,
426
avahi.DBUS_PATH_SERVER,
427
follow_name_owner_changes=True),
227
avahi.DBUS_PATH_SERVER),
428
228
avahi.DBUS_INTERFACE_SERVER)
429
self.server.connect_to_signal("StateChanged",
430
self.server_state_changed)
229
self.server.connect_to_signal(u"StateChanged",
230
self.server_state_changed)
431
231
self.server_state_changed(self.server.GetState())
434
class AvahiServiceToSyslog(AvahiService):
435
def rename(self, *args, **kwargs):
436
"""Add the new name to the syslog messages"""
437
ret = AvahiService.rename(self, *args, **kwargs)
438
syslogger.setFormatter(logging.Formatter(
439
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
443
# Pretend that we have a GnuTLS module
444
class GnuTLS(object):
445
"""This isn't so much a class as it is a module-like namespace.
446
It is instantiated once, and simulates having a GnuTLS module."""
448
_library = ctypes.cdll.LoadLibrary(
449
ctypes.util.find_library("gnutls"))
450
_need_version = "3.3.0"
452
# Need to use class name "GnuTLS" here, since this method is
453
# called before the assignment to the "gnutls" global variable
455
if GnuTLS.check_version(self._need_version) is None:
456
raise GnuTLS.Error("Needs GnuTLS {} or later"
457
.format(self._need_version))
459
# Unless otherwise indicated, the constants and types below are
460
# all from the gnutls/gnutls.h C header file.
470
E_NO_CERTIFICATE_FOUND = -49
471
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
474
class session_int(ctypes.Structure):
476
session_t = ctypes.POINTER(session_int)
477
class certificate_credentials_st(ctypes.Structure):
479
certificate_credentials_t = ctypes.POINTER(
480
certificate_credentials_st)
481
certificate_type_t = ctypes.c_int
482
class datum_t(ctypes.Structure):
483
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
484
('size', ctypes.c_uint)]
485
class openpgp_crt_int(ctypes.Structure):
487
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
488
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
489
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
490
credentials_type_t = ctypes.c_int
491
transport_ptr_t = ctypes.c_void_p
492
close_request_t = ctypes.c_int
495
class Error(Exception):
496
# We need to use the class name "GnuTLS" here, since this
497
# exception might be raised from within GnuTLS.__init__,
498
# which is called before the assignment to the "gnutls"
499
# global variable has happened.
500
def __init__(self, message = None, code = None, args=()):
501
# Default usage is by a message string, but if a return
502
# code is passed, convert it to a string with
505
if message is None and code is not None:
506
message = GnuTLS.strerror(code)
507
return super(GnuTLS.Error, self).__init__(
510
class CertificateSecurityError(Error):
514
class Credentials(object):
516
self._c_object = gnutls.certificate_credentials_t()
517
gnutls.certificate_allocate_credentials(
518
ctypes.byref(self._c_object))
519
self.type = gnutls.CRD_CERTIFICATE
522
gnutls.certificate_free_credentials(self._c_object)
524
class ClientSession(object):
525
def __init__(self, socket, credentials = None):
526
self._c_object = gnutls.session_t()
527
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
528
gnutls.set_default_priority(self._c_object)
529
gnutls.transport_set_ptr(self._c_object, socket.fileno())
530
gnutls.handshake_set_private_extensions(self._c_object,
533
if credentials is None:
534
credentials = gnutls.Credentials()
535
gnutls.credentials_set(self._c_object, credentials.type,
536
ctypes.cast(credentials._c_object,
538
self.credentials = credentials
541
gnutls.deinit(self._c_object)
544
return gnutls.handshake(self._c_object)
546
def send(self, data):
550
data_len -= gnutls.record_send(self._c_object,
555
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
557
# Error handling functions
558
def _error_code(result):
559
"""A function to raise exceptions on errors, suitable
560
for the 'restype' attribute on ctypes functions"""
563
if result == gnutls.E_NO_CERTIFICATE_FOUND:
564
raise gnutls.CertificateSecurityError(code = result)
565
raise gnutls.Error(code = result)
567
def _retry_on_error(result, func, arguments):
568
"""A function to retry on some errors, suitable
569
for the 'errcheck' attribute on ctypes functions"""
571
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
572
return _error_code(result)
573
result = func(*arguments)
576
# Unless otherwise indicated, the function declarations below are
577
# all from the gnutls/gnutls.h C header file.
580
priority_set_direct = _library.gnutls_priority_set_direct
581
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
582
ctypes.POINTER(ctypes.c_char_p)]
583
priority_set_direct.restype = _error_code
585
init = _library.gnutls_init
586
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
587
init.restype = _error_code
589
set_default_priority = _library.gnutls_set_default_priority
590
set_default_priority.argtypes = [session_t]
591
set_default_priority.restype = _error_code
593
record_send = _library.gnutls_record_send
594
record_send.argtypes = [session_t, ctypes.c_void_p,
596
record_send.restype = ctypes.c_ssize_t
597
record_send.errcheck = _retry_on_error
599
certificate_allocate_credentials = (
600
_library.gnutls_certificate_allocate_credentials)
601
certificate_allocate_credentials.argtypes = [
602
ctypes.POINTER(certificate_credentials_t)]
603
certificate_allocate_credentials.restype = _error_code
605
certificate_free_credentials = (
606
_library.gnutls_certificate_free_credentials)
607
certificate_free_credentials.argtypes = [certificate_credentials_t]
608
certificate_free_credentials.restype = None
610
handshake_set_private_extensions = (
611
_library.gnutls_handshake_set_private_extensions)
612
handshake_set_private_extensions.argtypes = [session_t,
614
handshake_set_private_extensions.restype = None
616
credentials_set = _library.gnutls_credentials_set
617
credentials_set.argtypes = [session_t, credentials_type_t,
619
credentials_set.restype = _error_code
621
strerror = _library.gnutls_strerror
622
strerror.argtypes = [ctypes.c_int]
623
strerror.restype = ctypes.c_char_p
625
certificate_type_get = _library.gnutls_certificate_type_get
626
certificate_type_get.argtypes = [session_t]
627
certificate_type_get.restype = _error_code
629
certificate_get_peers = _library.gnutls_certificate_get_peers
630
certificate_get_peers.argtypes = [session_t,
631
ctypes.POINTER(ctypes.c_uint)]
632
certificate_get_peers.restype = ctypes.POINTER(datum_t)
634
global_set_log_level = _library.gnutls_global_set_log_level
635
global_set_log_level.argtypes = [ctypes.c_int]
636
global_set_log_level.restype = None
638
global_set_log_function = _library.gnutls_global_set_log_function
639
global_set_log_function.argtypes = [log_func]
640
global_set_log_function.restype = None
642
deinit = _library.gnutls_deinit
643
deinit.argtypes = [session_t]
644
deinit.restype = None
646
handshake = _library.gnutls_handshake
647
handshake.argtypes = [session_t]
648
handshake.restype = _error_code
649
handshake.errcheck = _retry_on_error
651
transport_set_ptr = _library.gnutls_transport_set_ptr
652
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
653
transport_set_ptr.restype = None
655
bye = _library.gnutls_bye
656
bye.argtypes = [session_t, close_request_t]
657
bye.restype = _error_code
658
bye.errcheck = _retry_on_error
660
check_version = _library.gnutls_check_version
661
check_version.argtypes = [ctypes.c_char_p]
662
check_version.restype = ctypes.c_char_p
664
# All the function declarations below are from gnutls/openpgp.h
666
openpgp_crt_init = _library.gnutls_openpgp_crt_init
667
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
668
openpgp_crt_init.restype = _error_code
670
openpgp_crt_import = _library.gnutls_openpgp_crt_import
671
openpgp_crt_import.argtypes = [openpgp_crt_t,
672
ctypes.POINTER(datum_t),
674
openpgp_crt_import.restype = _error_code
676
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
677
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
678
ctypes.POINTER(ctypes.c_uint)]
679
openpgp_crt_verify_self.restype = _error_code
681
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
682
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
683
openpgp_crt_deinit.restype = None
685
openpgp_crt_get_fingerprint = (
686
_library.gnutls_openpgp_crt_get_fingerprint)
687
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
691
openpgp_crt_get_fingerprint.restype = _error_code
693
# Remove non-public functions
694
del _error_code, _retry_on_error
695
# Create the global "gnutls" object, simulating a module
698
def call_pipe(connection, # : multiprocessing.Connection
699
func, *args, **kwargs):
700
"""This function is meant to be called by multiprocessing.Process
702
This function runs func(*args, **kwargs), and writes the resulting
703
return value on the provided multiprocessing.Connection.
705
connection.send(func(*args, **kwargs))
708
234
class Client(object):
709
235
"""A representation of a client host served by this server.
712
approved: bool(); 'None' if not yet approved/disapproved
713
approval_delay: datetime.timedelta(); Time to wait for approval
714
approval_duration: datetime.timedelta(); Duration of one approval
238
name: string; from the config file, used in log messages and
240
fingerprint: string (40 or 32 hexadecimal digits); used to
241
uniquely identify the client
242
secret: bytestring; sent verbatim (over TLS) to client
243
host: string; available for use by the checker command
244
created: datetime.datetime(); (UTC) object creation
245
last_enabled: datetime.datetime(); (UTC)
247
last_checked_ok: datetime.datetime(); (UTC) or None
248
timeout: datetime.timedelta(); How long from last_checked_ok
249
until this client is disabled
250
interval: datetime.timedelta(); How often to start a new checker
251
disable_hook: If set, called by disable() as disable_hook(self)
715
252
checker: subprocess.Popen(); a running checker process used
716
253
to see if the client lives.
717
254
'None' if no process is running.
718
checker_callback_tag: a GObject event source tag, or None
719
checker_command: string; External command which is run to check
720
if client lives. %() expansions are done at
255
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
257
checker_callback_tag: - '' -
258
checker_command: string; External command which is run to check if
259
client lives. %() expansions are done at
721
260
runtime with vars(self) as dict, so that for
722
261
instance %(name)s can be used in the command.
723
checker_initiator_tag: a GObject event source tag, or None
724
created: datetime.datetime(); (UTC) object creation
725
client_structure: Object describing what attributes a client has
726
and is used for storing the client at exit
727
262
current_checker_command: string; current running checker_command
728
disable_initiator_tag: a GObject event source tag, or None
730
fingerprint: string (40 or 32 hexadecimal digits); used to
731
uniquely identify the client
732
host: string; available for use by the checker command
733
interval: datetime.timedelta(); How often to start a new checker
734
last_approval_request: datetime.datetime(); (UTC) or None
735
last_checked_ok: datetime.datetime(); (UTC) or None
736
last_checker_status: integer between 0 and 255 reflecting exit
737
status of last checker. -1 reflects crashed
738
checker, -2 means no checker completed yet.
739
last_checker_signal: The signal which killed the last checker, if
740
last_checker_status is -1
741
last_enabled: datetime.datetime(); (UTC) or None
742
name: string; from the config file, used in log messages and
744
secret: bytestring; sent verbatim (over TLS) to client
745
timeout: datetime.timedelta(); How long from last_checked_ok
746
until this client is disabled
747
extended_timeout: extra long timeout when secret has been sent
748
runtime_expansions: Allowed attributes for runtime expansion.
749
expires: datetime.datetime(); time (UTC) when a client will be
751
server_settings: The server_settings dict from main()
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
754
runtime_expansions = ("approval_delay", "approval_duration",
755
"created", "enabled", "expires",
756
"fingerprint", "host", "interval",
757
"last_approval_request", "last_checked_ok",
758
"last_enabled", "name", "timeout")
761
"extended_timeout": "PT15M",
763
"checker": "fping -q -- %%(host)s",
765
"approval_delay": "PT0S",
766
"approval_duration": "PT1S",
767
"approved_by_default": "True",
772
def config_parser(config):
773
"""Construct a new dict of client settings of this form:
774
{ client_name: {setting_name: value, ...}, ...}
775
with exceptions for any special settings as defined above.
776
NOTE: Must be a pure function. Must return the same result
777
value given the same arguments.
780
for client_name in config.sections():
781
section = dict(config.items(client_name))
782
client = settings[client_name] = {}
784
client["host"] = section["host"]
785
# Reformat values from string types to Python types
786
client["approved_by_default"] = config.getboolean(
787
client_name, "approved_by_default")
788
client["enabled"] = config.getboolean(client_name,
791
# Uppercase and remove spaces from fingerprint for later
792
# comparison purposes with return value from the
793
# fingerprint() function
794
client["fingerprint"] = (section["fingerprint"].upper()
796
if "secret" in section:
797
client["secret"] = section["secret"].decode("base64")
798
elif "secfile" in section:
799
with open(os.path.expanduser(os.path.expandvars
800
(section["secfile"])),
802
client["secret"] = secfile.read()
804
raise TypeError("No secret or secfile for section {}"
806
client["timeout"] = string_to_delta(section["timeout"])
807
client["extended_timeout"] = string_to_delta(
808
section["extended_timeout"])
809
client["interval"] = string_to_delta(section["interval"])
810
client["approval_delay"] = string_to_delta(
811
section["approval_delay"])
812
client["approval_duration"] = string_to_delta(
813
section["approval_duration"])
814
client["checker_command"] = section["checker"]
815
client["last_approval_request"] = None
816
client["last_checked_ok"] = None
817
client["last_checker_status"] = -2
821
def __init__(self, settings, name = None, server_settings=None):
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'
823
if server_settings is None:
825
self.server_settings = server_settings
826
# adding all client settings
827
for setting, value in settings.items():
828
setattr(self, setting, value)
831
if not hasattr(self, "last_enabled"):
832
self.last_enabled = datetime.datetime.utcnow()
833
if not hasattr(self, "expires"):
834
self.expires = (datetime.datetime.utcnow()
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()
837
self.last_enabled = None
840
logger.debug("Creating client %r", self.name)
841
logger.debug(" Fingerprint: %s", self.fingerprint)
842
self.created = settings.get("created",
843
datetime.datetime.utcnow())
845
# attributes specific for this server instance
308
raise TypeError(u"No secret or secfile for client %s"
310
self.host = config.get(u"host", u"")
311
self.created = datetime.datetime.utcnow()
313
self.last_enabled = None
314
self.last_checked_ok = None
315
self.timeout = string_to_delta(config[u"timeout"])
316
self.interval = string_to_delta(config[u"interval"])
317
self.disable_hook = disable_hook
846
318
self.checker = None
847
319
self.checker_initiator_tag = None
848
320
self.disable_initiator_tag = None
849
321
self.checker_callback_tag = None
322
self.checker_command = config[u"checker"]
850
323
self.current_checker_command = None
324
self.last_connect = None
325
self._approved = None
326
self.approved_by_default = config.get(u"approved_by_default",
852
328
self.approvals_pending = 0
853
self.changedstate = multiprocessing_manager.Condition(
854
multiprocessing_manager.Lock())
855
self.client_structure = [attr
856
for attr in self.__dict__.iterkeys()
857
if not attr.startswith("_")]
858
self.client_structure.append("client_structure")
860
for name, t in inspect.getmembers(
861
type(self), lambda obj: isinstance(obj, property)):
862
if not name.startswith("_"):
863
self.client_structure.append(name)
329
self.approved_delay = string_to_delta(
330
config[u"approved_delay"])
331
self.approved_duration = string_to_delta(
332
config[u"approved_duration"])
333
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
865
# Send notice to process children that client state has changed
866
335
def send_changedstate(self):
867
with self.changedstate:
868
self.changedstate.notify_all()
336
self.changedstate.acquire()
337
self.changedstate.notify_all()
338
self.changedstate.release()
870
340
def enable(self):
871
341
"""Start this client's checker and timeout hooks"""
872
if getattr(self, "enabled", False):
342
if getattr(self, u"enabled", False):
873
343
# Already enabled
875
self.expires = datetime.datetime.utcnow() + self.timeout
345
self.send_changedstate()
877
346
self.last_enabled = datetime.datetime.utcnow()
879
self.send_changedstate()
347
# Schedule a new checker to be started an 'interval' from now,
348
# and every interval from then on.
349
self.checker_initiator_tag = (gobject.timeout_add
350
(self.interval_milliseconds(),
352
# Schedule a disable() when 'timeout' has passed
353
self.disable_initiator_tag = (gobject.timeout_add
354
(self.timeout_milliseconds(),
357
# Also start a new checker *right now*.
881
360
def disable(self, quiet=True):
882
361
"""Disable this client."""
883
362
if not getattr(self, "enabled", False):
886
logger.info("Disabling client %s", self.name)
887
if getattr(self, "disable_initiator_tag", None) is not None:
888
GObject.source_remove(self.disable_initiator_tag)
365
self.send_changedstate()
367
logger.info(u"Disabling client %s", self.name)
368
if getattr(self, u"disable_initiator_tag", False):
369
gobject.source_remove(self.disable_initiator_tag)
889
370
self.disable_initiator_tag = None
891
if getattr(self, "checker_initiator_tag", None) is not None:
892
GObject.source_remove(self.checker_initiator_tag)
371
if getattr(self, u"checker_initiator_tag", False):
372
gobject.source_remove(self.checker_initiator_tag)
893
373
self.checker_initiator_tag = None
894
374
self.stop_checker()
375
if self.disable_hook:
376
self.disable_hook(self)
895
377
self.enabled = False
897
self.send_changedstate()
898
# Do not run this again if called by a GObject.timeout_add
378
# Do not run this again if called by a gobject.timeout_add
901
381
def __del__(self):
382
self.disable_hook = None
904
def init_checker(self):
905
# Schedule a new checker to be started an 'interval' from now,
906
# and every interval from then on.
907
if self.checker_initiator_tag is not None:
908
GObject.source_remove(self.checker_initiator_tag)
909
self.checker_initiator_tag = GObject.timeout_add(
910
int(self.interval.total_seconds() * 1000),
912
# Schedule a disable() when 'timeout' has passed
913
if self.disable_initiator_tag is not None:
914
GObject.source_remove(self.disable_initiator_tag)
915
self.disable_initiator_tag = GObject.timeout_add(
916
int(self.timeout.total_seconds() * 1000), self.disable)
917
# Also start a new checker *right now*.
920
def checker_callback(self, source, condition, connection,
385
def checker_callback(self, pid, condition, command):
922
386
"""The checker has completed, so take appropriate actions."""
923
387
self.checker_callback_tag = None
924
388
self.checker = None
925
# Read return code from connection (see call_pipe)
926
returncode = connection.recv()
930
self.last_checker_status = returncode
931
self.last_checker_signal = None
932
if self.last_checker_status == 0:
933
logger.info("Checker for %(name)s succeeded",
389
if os.WIFEXITED(condition):
390
exitstatus = os.WEXITSTATUS(condition)
392
logger.info(u"Checker for %(name)s succeeded",
935
394
self.checked_ok()
937
logger.info("Checker for %(name)s failed", vars(self))
396
logger.info(u"Checker for %(name)s failed",
939
self.last_checker_status = -1
940
self.last_checker_signal = -returncode
941
logger.warning("Checker for %(name)s crashed?",
399
logger.warning(u"Checker for %(name)s crashed?",
945
402
def checked_ok(self):
946
"""Assert that the client has been seen, alive and well."""
403
"""Bump up the timeout for this client.
405
This should only be called when the client has been seen,
947
408
self.last_checked_ok = datetime.datetime.utcnow()
948
self.last_checker_status = 0
949
self.last_checker_signal = None
952
def bump_timeout(self, timeout=None):
953
"""Bump up the timeout for this client."""
955
timeout = self.timeout
956
if self.disable_initiator_tag is not None:
957
GObject.source_remove(self.disable_initiator_tag)
958
self.disable_initiator_tag = None
959
if getattr(self, "enabled", False):
960
self.disable_initiator_tag = GObject.timeout_add(
961
int(timeout.total_seconds() * 1000), self.disable)
962
self.expires = datetime.datetime.utcnow() + timeout
964
def need_approval(self):
965
self.last_approval_request = datetime.datetime.utcnow()
409
gobject.source_remove(self.disable_initiator_tag)
410
self.disable_initiator_tag = (gobject.timeout_add
411
(self.timeout_milliseconds(),
967
414
def start_checker(self):
968
415
"""Start a new checker subprocess if one is not running.
970
417
If a checker already exists, leave it running and do
972
419
# The reason for not killing a running checker is that if we
973
# did that, and if a checker (for some reason) started running
974
# slowly and taking more than 'interval' time, then the client
975
# would inevitably timeout, since no checker would get a
976
# chance to run to completion. If we instead leave running
420
# did that, then if a checker (for some reason) started
421
# running slowly and taking more than 'interval' time, the
422
# client would inevitably timeout, since no checker would get
423
# a chance to run to completion. If we instead leave running
977
424
# checkers alone, the checker would have to take more time
978
425
# than 'timeout' for the client to be disabled, which is as it
981
if self.checker is not None and not self.checker.is_alive():
982
logger.warning("Checker was not alive; joining")
428
# If a checker exists, make sure it is not a zombie
430
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
431
except (AttributeError, OSError), error:
432
if (isinstance(error, OSError)
433
and error.errno != errno.ECHILD):
437
logger.warning(u"Checker was a zombie")
438
gobject.source_remove(self.checker_callback_tag)
439
self.checker_callback(pid, status,
440
self.current_checker_command)
985
441
# Start a new checker if needed
986
442
if self.checker is None:
987
# Escape attributes for the shell
989
attr: re.escape(str(getattr(self, attr)))
990
for attr in self.runtime_expansions }
992
command = self.checker_command % escaped_attrs
993
except TypeError as error:
994
logger.error('Could not format string "%s"',
995
self.checker_command,
997
return True # Try again later
444
# In case checker_command has exactly one % operator
445
command = self.checker_command % self.host
447
# Escape attributes for the shell
448
escaped_attrs = dict((key,
449
re.escape(unicode(str(val),
453
vars(self).iteritems())
455
command = self.checker_command % escaped_attrs
456
except TypeError, error:
457
logger.error(u'Could not format string "%s":'
458
u' %s', self.checker_command, error)
459
return True # Try again later
998
460
self.current_checker_command = command
999
logger.info("Starting checker %r for %s", command,
1001
# We don't need to redirect stdout and stderr, since
1002
# in normal mode, that is already done by daemon(),
1003
# and in debug mode we don't want to. (Stdin is
1004
# always replaced by /dev/null.)
1005
# The exception is when not debugging but nevertheless
1006
# running in the foreground; use the previously
1008
popen_args = { "close_fds": True,
1011
if (not self.server_settings["debug"]
1012
and self.server_settings["foreground"]):
1013
popen_args.update({"stdout": wnull,
1015
pipe = multiprocessing.Pipe(duplex = False)
1016
self.checker = multiprocessing.Process(
1018
args = (pipe[1], subprocess.call, command),
1019
kwargs = popen_args)
1020
self.checker.start()
1021
self.checker_callback_tag = GObject.io_add_watch(
1022
pipe[0].fileno(), GObject.IO_IN,
1023
self.checker_callback, pipe[0], command)
1024
# Re-run this periodically if run by GObject.timeout_add
462
logger.info(u"Starting checker %r for %s",
464
# We don't need to redirect stdout and stderr, since
465
# in normal mode, that is already done by daemon(),
466
# and in debug mode we don't want to. (Stdin is
467
# always replaced by /dev/null.)
468
self.checker = subprocess.Popen(command,
470
shell=True, cwd=u"/")
471
self.checker_callback_tag = (gobject.child_watch_add
473
self.checker_callback,
475
# The checker may have completed before the gobject
476
# watch was added. Check for this.
477
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
479
gobject.source_remove(self.checker_callback_tag)
480
self.checker_callback(pid, status, command)
481
except OSError, error:
482
logger.error(u"Failed to start subprocess: %s",
484
# Re-run this periodically if run by gobject.timeout_add
1027
487
def stop_checker(self):
1028
488
"""Force the checker process, if any, to stop."""
1029
489
if self.checker_callback_tag:
1030
GObject.source_remove(self.checker_callback_tag)
490
gobject.source_remove(self.checker_callback_tag)
1031
491
self.checker_callback_tag = None
1032
if getattr(self, "checker", None) is None:
492
if getattr(self, u"checker", None) is None:
1034
logger.debug("Stopping checker for %(name)s", vars(self))
1035
self.checker.terminate()
494
logger.debug(u"Stopping checker for %(name)s", vars(self))
496
os.kill(self.checker.pid, signal.SIGTERM)
498
#if self.checker.poll() is None:
499
# os.kill(self.checker.pid, signal.SIGKILL)
500
except OSError, error:
501
if error.errno != errno.ESRCH: # No such process
1036
503
self.checker = None
1039
def dbus_service_property(dbus_interface,
505
def dbus_service_property(dbus_interface, signature=u"v",
506
access=u"readwrite", byte_arrays=False):
1043
507
"""Decorators for marking methods of a DBusObjectWithProperties to
1044
508
become properties on the D-Bus.
1134
class DBusObjectWithAnnotations(dbus.service.Object):
1135
"""A D-Bus object with annotations.
1137
Classes inheriting from this can use the dbus_annotations
1138
decorator to add annotations to methods or signals.
1142
def _is_dbus_thing(thing):
1143
"""Returns a function testing if an attribute is a D-Bus thing
1145
If called like _is_dbus_thing("method") it returns a function
1146
suitable for use as predicate to inspect.getmembers().
1148
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1151
def _get_all_dbus_things(self, thing):
1152
"""Returns a generator of (name, attribute) pairs
1154
return ((getattr(athing.__get__(self), "_dbus_name", name),
1155
athing.__get__(self))
1156
for cls in self.__class__.__mro__
1158
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1160
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1161
out_signature = "s",
1162
path_keyword = 'object_path',
1163
connection_keyword = 'connection')
1164
def Introspect(self, object_path, connection):
1165
"""Overloading of standard D-Bus method.
1167
Inserts annotation tags on methods and signals.
1169
xmlstring = dbus.service.Object.Introspect(self, object_path,
1172
document = xml.dom.minidom.parseString(xmlstring)
1174
for if_tag in document.getElementsByTagName("interface"):
1175
# Add annotation tags
1176
for typ in ("method", "signal"):
1177
for tag in if_tag.getElementsByTagName(typ):
1179
for name, prop in (self.
1180
_get_all_dbus_things(typ)):
1181
if (name == tag.getAttribute("name")
1182
and prop._dbus_interface
1183
== if_tag.getAttribute("name")):
1184
annots.update(getattr(
1185
prop, "_dbus_annotations", {}))
1186
for name, value in annots.items():
1187
ann_tag = document.createElement(
1189
ann_tag.setAttribute("name", name)
1190
ann_tag.setAttribute("value", value)
1191
tag.appendChild(ann_tag)
1192
# Add interface annotation tags
1193
for annotation, value in dict(
1194
itertools.chain.from_iterable(
1195
annotations().items()
1196
for name, annotations
1197
in self._get_all_dbus_things("interface")
1198
if name == if_tag.getAttribute("name")
1200
ann_tag = document.createElement("annotation")
1201
ann_tag.setAttribute("name", annotation)
1202
ann_tag.setAttribute("value", value)
1203
if_tag.appendChild(ann_tag)
1204
# Fix argument name for the Introspect method itself
1205
if (if_tag.getAttribute("name")
1206
== dbus.INTROSPECTABLE_IFACE):
1207
for cn in if_tag.getElementsByTagName("method"):
1208
if cn.getAttribute("name") == "Introspect":
1209
for arg in cn.getElementsByTagName("arg"):
1210
if (arg.getAttribute("direction")
1212
arg.setAttribute("name",
1214
xmlstring = document.toxml("utf-8")
1216
except (AttributeError, xml.dom.DOMException,
1217
xml.parsers.expat.ExpatError) as error:
1218
logger.error("Failed to override Introspection method",
1223
class DBusObjectWithProperties(DBusObjectWithAnnotations):
554
class DBusObjectWithProperties(dbus.service.Object):
1224
555
"""A D-Bus object with properties.
1226
557
Classes inheriting from this can use the dbus_service_property
1227
558
decorator to expose methods as D-Bus properties. It exposes the
1228
559
standard Get(), Set(), and GetAll() methods on the D-Bus.
563
def _is_dbus_property(obj):
564
return getattr(obj, u"_dbus_is_property", False)
566
def _get_all_dbus_properties(self):
567
"""Returns a generator of (name, attribute) pairs
569
return ((prop._dbus_name, prop)
571
inspect.getmembers(self, self._is_dbus_property))
1231
573
def _get_dbus_property(self, interface_name, property_name):
1232
574
"""Returns a bound method if one exists which is a D-Bus
1233
575
property with the specified name and interface.
1235
for cls in self.__class__.__mro__:
1236
for name, value in inspect.getmembers(
1237
cls, self._is_dbus_thing("property")):
1238
if (value._dbus_name == property_name
1239
and value._dbus_interface == interface_name):
1240
return value.__get__(self)
577
for name in (property_name,
578
property_name + u"_dbus_property"):
579
prop = getattr(self, name, None)
581
or not self._is_dbus_property(prop)
582
or prop._dbus_name != property_name
583
or (interface_name and prop._dbus_interface
584
and interface_name != prop._dbus_interface)):
1242
587
# No such property
1243
raise DBusPropertyNotFound("{}:{}.{}".format(
1244
self.dbus_object_path, interface_name, property_name))
1247
def _get_all_interface_names(cls):
1248
"""Get a sequence of all interfaces supported by an object"""
1249
return (name for name in set(getattr(getattr(x, attr),
1250
"_dbus_interface", None)
1251
for x in (inspect.getmro(cls))
1253
if name is not None)
1255
@dbus.service.method(dbus.PROPERTIES_IFACE,
588
raise DBusPropertyNotFound(self.dbus_object_path + u":"
589
+ interface_name + u"."
592
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
1258
594
def Get(self, interface_name, property_name):
1259
595
"""Standard D-Bus property Get() method, see D-Bus standard.
1261
597
prop = self._get_dbus_property(interface_name, property_name)
1262
if prop._dbus_access == "write":
598
if prop._dbus_access == u"write":
1263
599
raise DBusPropertyAccessException(property_name)
1265
if not hasattr(value, "variant_level"):
601
if not hasattr(value, u"variant_level"):
1267
603
return type(value)(value, variant_level=value.variant_level+1)
1269
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
605
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1270
606
def Set(self, interface_name, property_name, value):
1271
607
"""Standard D-Bus property Set() method, see D-Bus standard.
1273
609
prop = self._get_dbus_property(interface_name, property_name)
1274
if prop._dbus_access == "read":
610
if prop._dbus_access == u"read":
1275
611
raise DBusPropertyAccessException(property_name)
1276
if prop._dbus_get_args_options["byte_arrays"]:
612
if prop._dbus_get_args_options[u"byte_arrays"]:
1277
613
# The byte_arrays option is not supported yet on
1278
614
# signatures other than "ay".
1279
if prop._dbus_signature != "ay":
1280
raise ValueError("Byte arrays not supported for non-"
1281
"'ay' signature {!r}"
1282
.format(prop._dbus_signature))
1283
value = dbus.ByteArray(b''.join(chr(byte)
615
if prop._dbus_signature != u"ay":
617
value = dbus.ByteArray(''.join(unichr(byte)
1287
@dbus.service.method(dbus.PROPERTIES_IFACE,
1289
out_signature="a{sv}")
621
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
622
out_signature=u"a{sv}")
1290
623
def GetAll(self, interface_name):
1291
624
"""Standard D-Bus property GetAll() method, see D-Bus
1294
627
Note: Will not include properties with access="write".
1297
for name, prop in self._get_all_dbus_things("property"):
630
for name, prop in self._get_all_dbus_properties():
1298
631
if (interface_name
1299
632
and interface_name != prop._dbus_interface):
1300
633
# Interface non-empty but did not match
1302
635
# Ignore write-only properties
1303
if prop._dbus_access == "write":
636
if prop._dbus_access == u"write":
1306
if not hasattr(value, "variant_level"):
1307
properties[name] = value
639
if not hasattr(value, u"variant_level"):
1309
properties[name] = type(value)(
1310
value, variant_level = value.variant_level + 1)
1311
return dbus.Dictionary(properties, signature="sv")
1313
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1314
def PropertiesChanged(self, interface_name, changed_properties,
1315
invalidated_properties):
1316
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
642
all[name] = type(value)(value, variant_level=
643
value.variant_level+1)
644
return dbus.Dictionary(all, signature=u"sv")
1321
646
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1323
648
path_keyword='object_path',
1324
649
connection_keyword='connection')
1325
650
def Introspect(self, object_path, connection):
1326
"""Overloading of standard D-Bus method.
1328
Inserts property tags and interface annotation tags.
651
"""Standard D-Bus method, overloaded to insert property tags.
1330
xmlstring = DBusObjectWithAnnotations.Introspect(self,
653
xmlstring = dbus.service.Object.Introspect(self, object_path,
1334
656
document = xml.dom.minidom.parseString(xmlstring)
1336
657
def make_tag(document, name, prop):
1337
e = document.createElement("property")
1338
e.setAttribute("name", name)
1339
e.setAttribute("type", prop._dbus_signature)
1340
e.setAttribute("access", prop._dbus_access)
658
e = document.createElement(u"property")
659
e.setAttribute(u"name", name)
660
e.setAttribute(u"type", prop._dbus_signature)
661
e.setAttribute(u"access", prop._dbus_access)
1343
for if_tag in document.getElementsByTagName("interface"):
663
for if_tag in document.getElementsByTagName(u"interface"):
1345
664
for tag in (make_tag(document, name, prop)
1347
in self._get_all_dbus_things("property")
666
in self._get_all_dbus_properties()
1348
667
if prop._dbus_interface
1349
== if_tag.getAttribute("name")):
668
== if_tag.getAttribute(u"name")):
1350
669
if_tag.appendChild(tag)
1351
# Add annotation tags for properties
1352
for tag in if_tag.getElementsByTagName("property"):
1354
for name, prop in self._get_all_dbus_things(
1356
if (name == tag.getAttribute("name")
1357
and prop._dbus_interface
1358
== if_tag.getAttribute("name")):
1359
annots.update(getattr(
1360
prop, "_dbus_annotations", {}))
1361
for name, value in annots.items():
1362
ann_tag = document.createElement(
1364
ann_tag.setAttribute("name", name)
1365
ann_tag.setAttribute("value", value)
1366
tag.appendChild(ann_tag)
1367
670
# Add the names to the return values for the
1368
671
# "org.freedesktop.DBus.Properties" methods
1369
if (if_tag.getAttribute("name")
1370
== "org.freedesktop.DBus.Properties"):
1371
for cn in if_tag.getElementsByTagName("method"):
1372
if cn.getAttribute("name") == "Get":
1373
for arg in cn.getElementsByTagName("arg"):
1374
if (arg.getAttribute("direction")
1376
arg.setAttribute("name", "value")
1377
elif cn.getAttribute("name") == "GetAll":
1378
for arg in cn.getElementsByTagName("arg"):
1379
if (arg.getAttribute("direction")
1381
arg.setAttribute("name", "props")
1382
xmlstring = document.toxml("utf-8")
1384
except (AttributeError, xml.dom.DOMException,
1385
xml.parsers.expat.ExpatError) as error:
1386
logger.error("Failed to override Introspection method",
1391
dbus.OBJECT_MANAGER_IFACE
1392
except AttributeError:
1393
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1395
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1396
"""A D-Bus object with an ObjectManager.
1398
Classes inheriting from this exposes the standard
1399
GetManagedObjects call and the InterfacesAdded and
1400
InterfacesRemoved signals on the standard
1401
"org.freedesktop.DBus.ObjectManager" interface.
1403
Note: No signals are sent automatically; they must be sent
1406
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1407
out_signature = "a{oa{sa{sv}}}")
1408
def GetManagedObjects(self):
1409
"""This function must be overridden"""
1410
raise NotImplementedError()
1412
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1413
signature = "oa{sa{sv}}")
1414
def InterfacesAdded(self, object_path, interfaces_and_properties):
1417
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1418
def InterfacesRemoved(self, object_path, interfaces):
1421
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1422
out_signature = "s",
1423
path_keyword = 'object_path',
1424
connection_keyword = 'connection')
1425
def Introspect(self, object_path, connection):
1426
"""Overloading of standard D-Bus method.
1428
Override return argument name of GetManagedObjects to be
1429
"objpath_interfaces_and_properties"
1431
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1435
document = xml.dom.minidom.parseString(xmlstring)
1437
for if_tag in document.getElementsByTagName("interface"):
1438
# Fix argument name for the GetManagedObjects method
1439
if (if_tag.getAttribute("name")
1440
== dbus.OBJECT_MANAGER_IFACE):
1441
for cn in if_tag.getElementsByTagName("method"):
1442
if (cn.getAttribute("name")
1443
== "GetManagedObjects"):
1444
for arg in cn.getElementsByTagName("arg"):
1445
if (arg.getAttribute("direction")
1449
"objpath_interfaces"
1451
xmlstring = document.toxml("utf-8")
1453
except (AttributeError, xml.dom.DOMException,
1454
xml.parsers.expat.ExpatError) as error:
1455
logger.error("Failed to override Introspection method",
1459
def datetime_to_dbus(dt, variant_level=0):
1460
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1462
return dbus.String("", variant_level = variant_level)
1463
return dbus.String(dt.isoformat(), variant_level=variant_level)
1466
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1467
"""A class decorator; applied to a subclass of
1468
dbus.service.Object, it will add alternate D-Bus attributes with
1469
interface names according to the "alt_interface_names" mapping.
1472
@alternate_dbus_interfaces({"org.example.Interface":
1473
"net.example.AlternateInterface"})
1474
class SampleDBusObject(dbus.service.Object):
1475
@dbus.service.method("org.example.Interface")
1476
def SampleDBusMethod():
1479
The above "SampleDBusMethod" on "SampleDBusObject" will be
1480
reachable via two interfaces: "org.example.Interface" and
1481
"net.example.AlternateInterface", the latter of which will have
1482
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1483
"true", unless "deprecate" is passed with a False value.
1485
This works for methods and signals, and also for D-Bus properties
1486
(from DBusObjectWithProperties) and interfaces (from the
1487
dbus_interface_annotations decorator).
1491
for orig_interface_name, alt_interface_name in (
1492
alt_interface_names.items()):
1494
interface_names = set()
1495
# Go though all attributes of the class
1496
for attrname, attribute in inspect.getmembers(cls):
1497
# Ignore non-D-Bus attributes, and D-Bus attributes
1498
# with the wrong interface name
1499
if (not hasattr(attribute, "_dbus_interface")
1500
or not attribute._dbus_interface.startswith(
1501
orig_interface_name)):
1503
# Create an alternate D-Bus interface name based on
1505
alt_interface = attribute._dbus_interface.replace(
1506
orig_interface_name, alt_interface_name)
1507
interface_names.add(alt_interface)
1508
# Is this a D-Bus signal?
1509
if getattr(attribute, "_dbus_is_signal", False):
1510
if sys.version_info.major == 2:
1511
# Extract the original non-method undecorated
1512
# function by black magic
1513
nonmethod_func = (dict(
1514
zip(attribute.func_code.co_freevars,
1515
attribute.__closure__))
1516
["func"].cell_contents)
1518
nonmethod_func = attribute
1519
# Create a new, but exactly alike, function
1520
# object, and decorate it to be a new D-Bus signal
1521
# with the alternate D-Bus interface name
1522
if sys.version_info.major == 2:
1523
new_function = types.FunctionType(
1524
nonmethod_func.func_code,
1525
nonmethod_func.func_globals,
1526
nonmethod_func.func_name,
1527
nonmethod_func.func_defaults,
1528
nonmethod_func.func_closure)
1530
new_function = types.FunctionType(
1531
nonmethod_func.__code__,
1532
nonmethod_func.__globals__,
1533
nonmethod_func.__name__,
1534
nonmethod_func.__defaults__,
1535
nonmethod_func.__closure__)
1536
new_function = (dbus.service.signal(
1538
attribute._dbus_signature)(new_function))
1539
# Copy annotations, if any
1541
new_function._dbus_annotations = dict(
1542
attribute._dbus_annotations)
1543
except AttributeError:
1545
# Define a creator of a function to call both the
1546
# original and alternate functions, so both the
1547
# original and alternate signals gets sent when
1548
# the function is called
1549
def fixscope(func1, func2):
1550
"""This function is a scope container to pass
1551
func1 and func2 to the "call_both" function
1552
outside of its arguments"""
1554
@functools.wraps(func2)
1555
def call_both(*args, **kwargs):
1556
"""This function will emit two D-Bus
1557
signals by calling func1 and func2"""
1558
func1(*args, **kwargs)
1559
func2(*args, **kwargs)
1560
# Make wrapper function look like a D-Bus signal
1561
for name, attr in inspect.getmembers(func2):
1562
if name.startswith("_dbus_"):
1563
setattr(call_both, name, attr)
1566
# Create the "call_both" function and add it to
1568
attr[attrname] = fixscope(attribute, new_function)
1569
# Is this a D-Bus method?
1570
elif getattr(attribute, "_dbus_is_method", False):
1571
# Create a new, but exactly alike, function
1572
# object. Decorate it to be a new D-Bus method
1573
# with the alternate D-Bus interface name. Add it
1576
dbus.service.method(
1578
attribute._dbus_in_signature,
1579
attribute._dbus_out_signature)
1580
(types.FunctionType(attribute.func_code,
1581
attribute.func_globals,
1582
attribute.func_name,
1583
attribute.func_defaults,
1584
attribute.func_closure)))
1585
# Copy annotations, if any
1587
attr[attrname]._dbus_annotations = dict(
1588
attribute._dbus_annotations)
1589
except AttributeError:
1591
# Is this a D-Bus property?
1592
elif getattr(attribute, "_dbus_is_property", False):
1593
# Create a new, but exactly alike, function
1594
# object, and decorate it to be a new D-Bus
1595
# property with the alternate D-Bus interface
1596
# name. Add it to the class.
1597
attr[attrname] = (dbus_service_property(
1598
alt_interface, attribute._dbus_signature,
1599
attribute._dbus_access,
1600
attribute._dbus_get_args_options
1602
(types.FunctionType(
1603
attribute.func_code,
1604
attribute.func_globals,
1605
attribute.func_name,
1606
attribute.func_defaults,
1607
attribute.func_closure)))
1608
# Copy annotations, if any
1610
attr[attrname]._dbus_annotations = dict(
1611
attribute._dbus_annotations)
1612
except AttributeError:
1614
# Is this a D-Bus interface?
1615
elif getattr(attribute, "_dbus_is_interface", False):
1616
# Create a new, but exactly alike, function
1617
# object. Decorate it to be a new D-Bus interface
1618
# with the alternate D-Bus interface name. Add it
1621
dbus_interface_annotations(alt_interface)
1622
(types.FunctionType(attribute.func_code,
1623
attribute.func_globals,
1624
attribute.func_name,
1625
attribute.func_defaults,
1626
attribute.func_closure)))
1628
# Deprecate all alternate interfaces
1629
iname="_AlternateDBusNames_interface_annotation{}"
1630
for interface_name in interface_names:
1632
@dbus_interface_annotations(interface_name)
1634
return { "org.freedesktop.DBus.Deprecated":
1636
# Find an unused name
1637
for aname in (iname.format(i)
1638
for i in itertools.count()):
1639
if aname not in attr:
1643
# Replace the class with a new subclass of it with
1644
# methods, signals, etc. as created above.
1645
cls = type(b"{}Alternate".format(cls.__name__),
1652
@alternate_dbus_interfaces({"se.recompile.Mandos":
1653
"se.bsnet.fukt.Mandos"})
672
if (if_tag.getAttribute(u"name")
673
== u"org.freedesktop.DBus.Properties"):
674
for cn in if_tag.getElementsByTagName(u"method"):
675
if cn.getAttribute(u"name") == u"Get":
676
for arg in cn.getElementsByTagName(u"arg"):
677
if (arg.getAttribute(u"direction")
679
arg.setAttribute(u"name", u"value")
680
elif cn.getAttribute(u"name") == u"GetAll":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
684
arg.setAttribute(u"name", u"props")
685
xmlstring = document.toxml(u"utf-8")
687
except (AttributeError, xml.dom.DOMException,
688
xml.parsers.expat.ExpatError), error:
689
logger.error(u"Failed to override Introspection method",
1654
694
class ClientDBus(Client, DBusObjectWithProperties):
1655
695
"""A Client class using D-Bus
1658
698
dbus_object_path: dbus.ObjectPath
1659
699
bus: dbus.SystemBus()
1662
runtime_expansions = (Client.runtime_expansions
1663
+ ("dbus_object_path", ))
1665
_interface = "se.recompile.Mandos.Client"
1667
701
# dbus.service.Object doesn't use super(), so we can't either.
1669
703
def __init__(self, bus = None, *args, **kwargs):
704
self._approvals_pending = 0
1671
706
Client.__init__(self, *args, **kwargs)
1672
707
# Only now, when this client is initialized, can it show up on
1674
client_object_name = str(self.name).translate(
1675
{ord("."): ord("_"),
1676
ord("-"): ord("_")})
1677
self.dbus_object_path = dbus.ObjectPath(
1678
"/clients/" + client_object_name)
709
self.dbus_object_path = (dbus.ObjectPath
711
+ self.name.replace(u".", u"_")))
1679
712
DBusObjectWithProperties.__init__(self, self.bus,
1680
713
self.dbus_object_path)
1682
def notifychangeproperty(transform_func, dbus_name,
1683
type_func=lambda x: x,
1685
invalidate_only=False,
1686
_interface=_interface):
1687
""" Modify a variable so that it's a property which announces
1688
its changes to DBus.
1690
transform_fun: Function that takes a value and a variant_level
1691
and transforms it to a D-Bus type.
1692
dbus_name: D-Bus name of the variable
1693
type_func: Function that transform the value before sending it
1694
to the D-Bus. Default: no transform
1695
variant_level: D-Bus variant level. Default: 1
1697
attrname = "_{}".format(dbus_name)
1699
def setter(self, value):
1700
if hasattr(self, "dbus_object_path"):
1701
if (not hasattr(self, attrname) or
1702
type_func(getattr(self, attrname, None))
1703
!= type_func(value)):
1705
self.PropertiesChanged(
1706
_interface, dbus.Dictionary(),
1707
dbus.Array((dbus_name, )))
1709
dbus_value = transform_func(
1711
variant_level = variant_level)
1712
self.PropertyChanged(dbus.String(dbus_name),
1714
self.PropertiesChanged(
1716
dbus.Dictionary({ dbus.String(dbus_name):
1719
setattr(self, attrname, value)
1721
return property(lambda self: getattr(self, attrname), setter)
1723
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1724
approvals_pending = notifychangeproperty(dbus.Boolean,
1727
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1728
last_enabled = notifychangeproperty(datetime_to_dbus,
1730
checker = notifychangeproperty(
1731
dbus.Boolean, "CheckerRunning",
1732
type_func = lambda checker: checker is not None)
1733
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1735
last_checker_status = notifychangeproperty(dbus.Int16,
1736
"LastCheckerStatus")
1737
last_approval_request = notifychangeproperty(
1738
datetime_to_dbus, "LastApprovalRequest")
1739
approved_by_default = notifychangeproperty(dbus.Boolean,
1740
"ApprovedByDefault")
1741
approval_delay = notifychangeproperty(
1742
dbus.UInt64, "ApprovalDelay",
1743
type_func = lambda td: td.total_seconds() * 1000)
1744
approval_duration = notifychangeproperty(
1745
dbus.UInt64, "ApprovalDuration",
1746
type_func = lambda td: td.total_seconds() * 1000)
1747
host = notifychangeproperty(dbus.String, "Host")
1748
timeout = notifychangeproperty(
1749
dbus.UInt64, "Timeout",
1750
type_func = lambda td: td.total_seconds() * 1000)
1751
extended_timeout = notifychangeproperty(
1752
dbus.UInt64, "ExtendedTimeout",
1753
type_func = lambda td: td.total_seconds() * 1000)
1754
interval = notifychangeproperty(
1755
dbus.UInt64, "Interval",
1756
type_func = lambda td: td.total_seconds() * 1000)
1757
checker_command = notifychangeproperty(dbus.String, "Checker")
1758
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1759
invalidate_only=True)
1761
del notifychangeproperty
715
def _get_approvals_pending(self):
716
return self._approvals_pending
717
def _set_approvals_pending(self, value):
718
old_value = self._approvals_pending
719
self._approvals_pending = value
721
if (hasattr(self, "dbus_object_path")
722
and bval is not bool(old_value)):
723
dbus_bool = dbus.Boolean(bval, variant_level=1)
724
self.PropertyChanged(dbus.String(u"approved_pending"),
727
approvals_pending = property(_get_approvals_pending,
728
_set_approvals_pending)
729
del _get_approvals_pending, _set_approvals_pending
732
def _datetime_to_dbus(dt, variant_level=0):
733
"""Convert a UTC datetime.datetime() to a D-Bus type."""
734
return dbus.String(dt.isoformat(),
735
variant_level=variant_level)
738
oldstate = getattr(self, u"enabled", False)
739
r = Client.enable(self)
740
if oldstate != self.enabled:
742
self.PropertyChanged(dbus.String(u"enabled"),
743
dbus.Boolean(True, variant_level=1))
744
self.PropertyChanged(
745
dbus.String(u"last_enabled"),
746
self._datetime_to_dbus(self.last_enabled,
750
def disable(self, quiet = False):
751
oldstate = getattr(self, u"enabled", False)
752
r = Client.disable(self, quiet=quiet)
753
if not quiet and oldstate != self.enabled:
755
self.PropertyChanged(dbus.String(u"enabled"),
756
dbus.Boolean(False, variant_level=1))
1763
759
def __del__(self, *args, **kwargs):
1765
761
self.remove_from_connection()
1766
762
except LookupError:
1768
if hasattr(DBusObjectWithProperties, "__del__"):
764
if hasattr(DBusObjectWithProperties, u"__del__"):
1769
765
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1770
766
Client.__del__(self, *args, **kwargs)
1772
def checker_callback(self, source, condition,
1773
connection, command, *args, **kwargs):
1774
ret = Client.checker_callback(self, source, condition,
1775
connection, command, *args,
1777
exitstatus = self.last_checker_status
768
def checker_callback(self, pid, condition, command,
770
self.checker_callback_tag = None
773
self.PropertyChanged(dbus.String(u"checker_running"),
774
dbus.Boolean(False, variant_level=1))
775
if os.WIFEXITED(condition):
776
exitstatus = os.WEXITSTATUS(condition)
1779
777
# Emit D-Bus signal
1780
778
self.CheckerCompleted(dbus.Int16(exitstatus),
1781
# This is specific to GNU libC
1782
dbus.Int64(exitstatus << 8),
779
dbus.Int64(condition),
1783
780
dbus.String(command))
1785
782
# Emit D-Bus signal
1786
783
self.CheckerCompleted(dbus.Int16(-1),
1788
# This is specific to GNU libC
1790
| self.last_checker_signal),
784
dbus.Int64(condition),
1791
785
dbus.String(command))
787
return Client.checker_callback(self, pid, condition, command,
790
def checked_ok(self, *args, **kwargs):
791
r = Client.checked_ok(self, *args, **kwargs)
793
self.PropertyChanged(
794
dbus.String(u"last_checked_ok"),
795
(self._datetime_to_dbus(self.last_checked_ok,
1794
799
def start_checker(self, *args, **kwargs):
1795
old_checker_pid = getattr(self.checker, "pid", None)
800
old_checker = self.checker
801
if self.checker is not None:
802
old_checker_pid = self.checker.pid
804
old_checker_pid = None
1796
805
r = Client.start_checker(self, *args, **kwargs)
1797
806
# Only if new checker process was started
1798
807
if (self.checker is not None
1799
808
and old_checker_pid != self.checker.pid):
1800
809
# Emit D-Bus signal
1801
810
self.CheckerStarted(self.current_checker_command)
811
self.PropertyChanged(
812
dbus.String(u"checker_running"),
813
dbus.Boolean(True, variant_level=1))
816
def stop_checker(self, *args, **kwargs):
817
old_checker = getattr(self, u"checker", None)
818
r = Client.stop_checker(self, *args, **kwargs)
819
if (old_checker is not None
820
and getattr(self, u"checker", None) is None):
821
self.PropertyChanged(dbus.String(u"checker_running"),
822
dbus.Boolean(False, variant_level=1))
1804
825
def _reset_approved(self):
1805
self.approved = None
826
self._approved = None
1808
829
def approve(self, value=True):
1809
self.approved = value
1810
GObject.timeout_add(int(self.approval_duration.total_seconds()
1811
* 1000), self._reset_approved)
1812
830
self.send_changedstate()
831
self._approved = value
832
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration),
833
self._reset_approved)
1814
836
## D-Bus methods, signals & properties
837
_interface = u"se.bsnet.fukt.Mandos.Client"
1820
841
# CheckerCompleted - signal
1821
@dbus.service.signal(_interface, signature="nxs")
842
@dbus.service.signal(_interface, signature=u"nxs")
1822
843
def CheckerCompleted(self, exitcode, waitstatus, command):
1826
847
# CheckerStarted - signal
1827
@dbus.service.signal(_interface, signature="s")
848
@dbus.service.signal(_interface, signature=u"s")
1828
849
def CheckerStarted(self, command):
1832
853
# PropertyChanged - signal
1833
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1834
@dbus.service.signal(_interface, signature="sv")
854
@dbus.service.signal(_interface, signature=u"sv")
1835
855
def PropertyChanged(self, property, value):
1848
868
# Rejected - signal
1849
@dbus.service.signal(_interface, signature="s")
869
@dbus.service.signal(_interface, signature=u"s")
1850
870
def Rejected(self, reason):
1854
874
# NeedApproval - signal
1855
@dbus.service.signal(_interface, signature="tb")
875
@dbus.service.signal(_interface, signature=u"db")
1856
876
def NeedApproval(self, timeout, default):
1858
return self.need_approval()
1862
882
# Approve - method
1863
@dbus.service.method(_interface, in_signature="b")
883
@dbus.service.method(_interface, in_signature=u"b")
1864
884
def Approve(self, value):
1865
885
self.approve(value)
1867
887
# CheckedOK - method
1868
888
@dbus.service.method(_interface)
1869
889
def CheckedOK(self):
890
return self.checked_ok()
1872
892
# Enable - method
1873
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1874
893
@dbus.service.method(_interface)
1875
894
def Enable(self):
1879
898
# StartChecker - method
1880
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1881
899
@dbus.service.method(_interface)
1882
900
def StartChecker(self):
1884
902
self.start_checker()
1886
904
# Disable - method
1887
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1888
905
@dbus.service.method(_interface)
1889
906
def Disable(self):
1893
910
# StopChecker - method
1894
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1895
911
@dbus.service.method(_interface)
1896
912
def StopChecker(self):
1897
913
self.stop_checker()
1901
# ApprovalPending - property
1902
@dbus_service_property(_interface, signature="b", access="read")
1903
def ApprovalPending_dbus_property(self):
917
# approved_pending - property
918
@dbus_service_property(_interface, signature=u"b", access=u"read")
919
def approved_pending_dbus_property(self):
1904
920
return dbus.Boolean(bool(self.approvals_pending))
1906
# ApprovedByDefault - property
1907
@dbus_service_property(_interface,
1910
def ApprovedByDefault_dbus_property(self, value=None):
1911
if value is None: # get
1912
return dbus.Boolean(self.approved_by_default)
1913
self.approved_by_default = bool(value)
1915
# ApprovalDelay - property
1916
@dbus_service_property(_interface,
1919
def ApprovalDelay_dbus_property(self, value=None):
1920
if value is None: # get
1921
return dbus.UInt64(self.approval_delay.total_seconds()
1923
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1925
# ApprovalDuration - property
1926
@dbus_service_property(_interface,
1929
def ApprovalDuration_dbus_property(self, value=None):
1930
if value is None: # get
1931
return dbus.UInt64(self.approval_duration.total_seconds()
1933
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1937
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1938
@dbus_service_property(_interface, signature="s", access="read")
1939
def Name_dbus_property(self):
922
# approved_by_default - property
923
@dbus_service_property(_interface, signature=u"b",
925
def approved_by_default_dbus_property(self):
926
return dbus.Boolean(self.approved_by_default)
928
# approved_delay - property
929
@dbus_service_property(_interface, signature=u"t",
931
def approved_delay_dbus_property(self):
932
return dbus.UInt64(self.approved_delay_milliseconds())
934
# approved_duration - property
935
@dbus_service_property(_interface, signature=u"t",
937
def approved_duration_dbus_property(self):
938
return dbus.UInt64(self._timedelta_to_milliseconds(
939
self.approved_duration))
942
@dbus_service_property(_interface, signature=u"s", access=u"read")
943
def name_dbus_property(self):
1940
944
return dbus.String(self.name)
1942
# Fingerprint - property
1944
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1945
@dbus_service_property(_interface, signature="s", access="read")
1946
def Fingerprint_dbus_property(self):
946
# fingerprint - property
947
@dbus_service_property(_interface, signature=u"s", access=u"read")
948
def fingerprint_dbus_property(self):
1947
949
return dbus.String(self.fingerprint)
1950
@dbus_service_property(_interface,
1953
def Host_dbus_property(self, value=None):
952
@dbus_service_property(_interface, signature=u"s",
954
def host_dbus_property(self, value=None):
1954
955
if value is None: # get
1955
956
return dbus.String(self.host)
1956
self.host = str(value)
1958
# Created - property
1960
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1961
@dbus_service_property(_interface, signature="s", access="read")
1962
def Created_dbus_property(self):
1963
return datetime_to_dbus(self.created)
1965
# LastEnabled - property
1966
@dbus_service_property(_interface, signature="s", access="read")
1967
def LastEnabled_dbus_property(self):
1968
return datetime_to_dbus(self.last_enabled)
1970
# Enabled - property
1971
@dbus_service_property(_interface,
1974
def Enabled_dbus_property(self, value=None):
959
self.PropertyChanged(dbus.String(u"host"),
960
dbus.String(value, variant_level=1))
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
964
def created_dbus_property(self):
965
return dbus.String(self._datetime_to_dbus(self.created))
967
# last_enabled - property
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
969
def last_enabled_dbus_property(self):
970
if self.last_enabled is None:
971
return dbus.String(u"")
972
return dbus.String(self._datetime_to_dbus(self.last_enabled))
975
@dbus_service_property(_interface, signature=u"b",
977
def enabled_dbus_property(self, value=None):
1975
978
if value is None: # get
1976
979
return dbus.Boolean(self.enabled)
2462
1423
gnutls_priority GnuTLS priority string
2463
1424
use_dbus: Boolean; to emit D-Bus signals or not
2465
Assumes a GObject.MainLoop event loop.
1426
Assumes a gobject.MainLoop event loop.
2468
1428
def __init__(self, server_address, RequestHandlerClass,
2472
gnutls_priority=None,
1429
interface=None, use_ipv6=True, clients=None,
1430
gnutls_priority=None, use_dbus=True):
2475
1431
self.enabled = False
2476
1432
self.clients = clients
2477
1433
if self.clients is None:
1434
self.clients = set()
2479
1435
self.use_dbus = use_dbus
2480
1436
self.gnutls_priority = gnutls_priority
2481
1437
IPv6_TCPServer.__init__(self, server_address,
2482
1438
RequestHandlerClass,
2483
1439
interface = interface,
2484
use_ipv6 = use_ipv6,
2485
socketfd = socketfd)
1440
use_ipv6 = use_ipv6)
2487
1441
def server_activate(self):
2488
1442
if self.enabled:
2489
1443
return socketserver.TCPServer.server_activate(self)
2491
1444
def enable(self):
2492
1445
self.enabled = True
2494
def add_pipe(self, parent_pipe, proc):
1446
def add_pipe(self, parent_pipe):
2495
1447
# Call "handle_ipc" for both data and EOF events
2496
GObject.io_add_watch(
2497
parent_pipe.fileno(),
2498
GObject.IO_IN | GObject.IO_HUP,
2499
functools.partial(self.handle_ipc,
2500
parent_pipe = parent_pipe,
2503
def handle_ipc(self, source, condition,
1448
gobject.io_add_watch(parent_pipe.fileno(),
1449
gobject.IO_IN | gobject.IO_HUP,
1450
functools.partial(self.handle_ipc,
1451
parent_pipe = parent_pipe))
1453
def handle_ipc(self, source, condition, parent_pipe=None,
2506
1454
client_object=None):
2507
# error, or the other end of multiprocessing.Pipe has closed
2508
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2509
# Wait for other process to exit
1456
gobject.IO_IN: u"IN", # There is data to read.
1457
gobject.IO_OUT: u"OUT", # Data can be written (without
1459
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1460
gobject.IO_ERR: u"ERR", # Error condition.
1461
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1462
# broken, usually for pipes and
1465
conditions_string = ' | '.join(name
1467
condition_names.iteritems()
1468
if cond & condition)
1469
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1472
# error or the other end of multiprocessing.Pipe has closed
1473
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2513
1476
# Read a request from the child
2514
1477
request = parent_pipe.recv()
1478
logger.debug(u"IPC request: %s", repr(request))
2515
1479
command = request[0]
2517
1481
if command == 'init':
2518
1482
fpr = request[1]
2519
1483
address = request[2]
2521
for c in self.clients.itervalues():
1485
for c in self.clients:
2522
1486
if c.fingerprint == fpr:
2526
logger.info("Client not found for fingerprint: %s, ad"
2527
"dress: %s", fpr, address)
1490
logger.warning(u"Client not found for fingerprint: %s, ad"
1491
u"dress: %s", fpr, address)
2528
1492
if self.use_dbus:
2529
1493
# Emit D-Bus signal
2530
mandos_dbus_service.ClientNotFound(fpr,
1494
mandos_dbus_service.ClientNotFound(fpr, address)
2532
1495
parent_pipe.send(False)
2535
GObject.io_add_watch(
2536
parent_pipe.fileno(),
2537
GObject.IO_IN | GObject.IO_HUP,
2538
functools.partial(self.handle_ipc,
2539
parent_pipe = parent_pipe,
2541
client_object = client))
1498
gobject.io_add_watch(parent_pipe.fileno(),
1499
gobject.IO_IN | gobject.IO_HUP,
1500
functools.partial(self.handle_ipc,
1501
parent_pipe = parent_pipe,
1502
client_object = client))
2542
1503
parent_pipe.send(True)
2543
# remove the old hook in favor of the new above hook on
1504
# remove the old hook in favor of the new above hook on same fileno
2546
1506
if command == 'funcall':
2547
1507
funcname = request[1]
2548
1508
args = request[2]
2549
1509
kwargs = request[3]
2551
parent_pipe.send(('data', getattr(client_object,
1511
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2555
1513
if command == 'getattr':
2556
1514
attrname = request[1]
2557
if isinstance(client_object.__getattribute__(attrname),
2558
collections.Callable):
2559
parent_pipe.send(('function', ))
1515
if callable(client_object.__getattribute__(attrname)):
1516
parent_pipe.send(('function',))
2562
'data', client_object.__getattribute__(attrname)))
1518
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2564
1520
if command == 'setattr':
2565
1521
attrname = request[1]
2566
1522
value = request[2]
2567
1523
setattr(client_object, attrname, value)
2572
def rfc3339_duration_to_delta(duration):
2573
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2575
>>> rfc3339_duration_to_delta("P7D")
2576
datetime.timedelta(7)
2577
>>> rfc3339_duration_to_delta("PT60S")
2578
datetime.timedelta(0, 60)
2579
>>> rfc3339_duration_to_delta("PT60M")
2580
datetime.timedelta(0, 3600)
2581
>>> rfc3339_duration_to_delta("PT24H")
2582
datetime.timedelta(1)
2583
>>> rfc3339_duration_to_delta("P1W")
2584
datetime.timedelta(7)
2585
>>> rfc3339_duration_to_delta("PT5M30S")
2586
datetime.timedelta(0, 330)
2587
>>> rfc3339_duration_to_delta("P1DT3M20S")
2588
datetime.timedelta(1, 200)
2591
# Parsing an RFC 3339 duration with regular expressions is not
2592
# possible - there would have to be multiple places for the same
2593
# values, like seconds. The current code, while more esoteric, is
2594
# cleaner without depending on a parsing library. If Python had a
2595
# built-in library for parsing we would use it, but we'd like to
2596
# avoid excessive use of external libraries.
2598
# New type for defining tokens, syntax, and semantics all-in-one
2599
Token = collections.namedtuple("Token", (
2600
"regexp", # To match token; if "value" is not None, must have
2601
# a "group" containing digits
2602
"value", # datetime.timedelta or None
2603
"followers")) # Tokens valid after this token
2604
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2605
# the "duration" ABNF definition in RFC 3339, Appendix A.
2606
token_end = Token(re.compile(r"$"), None, frozenset())
2607
token_second = Token(re.compile(r"(\d+)S"),
2608
datetime.timedelta(seconds=1),
2609
frozenset((token_end, )))
2610
token_minute = Token(re.compile(r"(\d+)M"),
2611
datetime.timedelta(minutes=1),
2612
frozenset((token_second, token_end)))
2613
token_hour = Token(re.compile(r"(\d+)H"),
2614
datetime.timedelta(hours=1),
2615
frozenset((token_minute, token_end)))
2616
token_time = Token(re.compile(r"T"),
2618
frozenset((token_hour, token_minute,
2620
token_day = Token(re.compile(r"(\d+)D"),
2621
datetime.timedelta(days=1),
2622
frozenset((token_time, token_end)))
2623
token_month = Token(re.compile(r"(\d+)M"),
2624
datetime.timedelta(weeks=4),
2625
frozenset((token_day, token_end)))
2626
token_year = Token(re.compile(r"(\d+)Y"),
2627
datetime.timedelta(weeks=52),
2628
frozenset((token_month, token_end)))
2629
token_week = Token(re.compile(r"(\d+)W"),
2630
datetime.timedelta(weeks=1),
2631
frozenset((token_end, )))
2632
token_duration = Token(re.compile(r"P"), None,
2633
frozenset((token_year, token_month,
2634
token_day, token_time,
2636
# Define starting values
2637
value = datetime.timedelta() # Value so far
2639
followers = frozenset((token_duration, )) # Following valid tokens
2640
s = duration # String left to parse
2641
# Loop until end token is found
2642
while found_token is not token_end:
2643
# Search for any currently valid tokens
2644
for token in followers:
2645
match = token.regexp.match(s)
2646
if match is not None:
2648
if token.value is not None:
2649
# Value found, parse digits
2650
factor = int(match.group(1), 10)
2651
# Add to value so far
2652
value += factor * token.value
2653
# Strip token from string
2654
s = token.regexp.sub("", s, 1)
2657
# Set valid next tokens
2658
followers = found_token.followers
2661
# No currently valid tokens were found
2662
raise ValueError("Invalid RFC 3339 duration: {!r}"
2668
1528
def string_to_delta(interval):
2669
1529
"""Parse a string and return a datetime.timedelta
2671
>>> string_to_delta('7d')
1531
>>> string_to_delta(u'7d')
2672
1532
datetime.timedelta(7)
2673
>>> string_to_delta('60s')
1533
>>> string_to_delta(u'60s')
2674
1534
datetime.timedelta(0, 60)
2675
>>> string_to_delta('60m')
1535
>>> string_to_delta(u'60m')
2676
1536
datetime.timedelta(0, 3600)
2677
>>> string_to_delta('24h')
1537
>>> string_to_delta(u'24h')
2678
1538
datetime.timedelta(1)
2679
>>> string_to_delta('1w')
1539
>>> string_to_delta(u'1w')
2680
1540
datetime.timedelta(7)
2681
>>> string_to_delta('5m 30s')
1541
>>> string_to_delta(u'5m 30s')
2682
1542
datetime.timedelta(0, 330)
2686
return rfc3339_duration_to_delta(interval)
2690
1544
timevalue = datetime.timedelta(0)
2691
1545
for s in interval.split():
1547
suffix = unicode(s[-1])
2694
1548
value = int(s[:-1])
2696
1550
delta = datetime.timedelta(value)
1551
elif suffix == u"s":
2698
1552
delta = datetime.timedelta(0, value)
1553
elif suffix == u"m":
2700
1554
delta = datetime.timedelta(0, 0, 0, 0, value)
1555
elif suffix == u"h":
2702
1556
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1557
elif suffix == u"w":
2704
1558
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2706
raise ValueError("Unknown suffix {!r}".format(suffix))
2707
except IndexError as e:
2708
raise ValueError(*(e.args))
1560
raise ValueError(u"Unknown suffix %r" % suffix)
1561
except (ValueError, IndexError), e:
1562
raise ValueError(e.message)
2709
1563
timevalue += delta
2710
1564
return timevalue
1567
def if_nametoindex(interface):
1568
"""Call the C function if_nametoindex(), or equivalent
1570
Note: This function cannot accept a unicode string."""
1571
global if_nametoindex
1573
if_nametoindex = (ctypes.cdll.LoadLibrary
1574
(ctypes.util.find_library(u"c"))
1576
except (OSError, AttributeError):
1577
logger.warning(u"Doing if_nametoindex the hard way")
1578
def if_nametoindex(interface):
1579
"Get an interface index the hard way, i.e. using fcntl()"
1580
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1581
with contextlib.closing(socket.socket()) as s:
1582
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1583
struct.pack(str(u"16s16x"),
1585
interface_index = struct.unpack(str(u"I"),
1587
return interface_index
1588
return if_nametoindex(interface)
2713
1591
def daemon(nochdir = False, noclose = False):
2714
1592
"""See daemon(3). Standard BSD Unix function.
2740
1618
##################################################################
2741
1619
# Parsing of options, both command line and config file
2743
parser = argparse.ArgumentParser()
2744
parser.add_argument("-v", "--version", action="version",
2745
version = "%(prog)s {}".format(version),
2746
help="show version number and exit")
2747
parser.add_argument("-i", "--interface", metavar="IF",
2748
help="Bind to interface IF")
2749
parser.add_argument("-a", "--address",
2750
help="Address to listen for requests on")
2751
parser.add_argument("-p", "--port", type=int,
2752
help="Port number to receive requests on")
2753
parser.add_argument("--check", action="store_true",
2754
help="Run self-test")
2755
parser.add_argument("--debug", action="store_true",
2756
help="Debug mode; run in foreground and log"
2757
" to terminal", default=None)
2758
parser.add_argument("--debuglevel", metavar="LEVEL",
2759
help="Debug level for stdout output")
2760
parser.add_argument("--priority", help="GnuTLS"
2761
" priority string (see GnuTLS documentation)")
2762
parser.add_argument("--servicename",
2763
metavar="NAME", help="Zeroconf service name")
2764
parser.add_argument("--configdir",
2765
default="/etc/mandos", metavar="DIR",
2766
help="Directory to search for configuration"
2768
parser.add_argument("--no-dbus", action="store_false",
2769
dest="use_dbus", help="Do not provide D-Bus"
2770
" system bus interface", default=None)
2771
parser.add_argument("--no-ipv6", action="store_false",
2772
dest="use_ipv6", help="Do not use IPv6",
2774
parser.add_argument("--no-restore", action="store_false",
2775
dest="restore", help="Do not restore stored"
2776
" state", default=None)
2777
parser.add_argument("--socket", type=int,
2778
help="Specify a file descriptor to a network"
2779
" socket to use instead of creating one")
2780
parser.add_argument("--statedir", metavar="DIR",
2781
help="Directory to save/restore state in")
2782
parser.add_argument("--foreground", action="store_true",
2783
help="Run in foreground", default=None)
2784
parser.add_argument("--no-zeroconf", action="store_false",
2785
dest="zeroconf", help="Do not use Zeroconf",
2788
options = parser.parse_args()
1621
parser = optparse.OptionParser(version = "%%prog %s" % version)
1622
parser.add_option("-i", u"--interface", type=u"string",
1623
metavar="IF", help=u"Bind to interface IF")
1624
parser.add_option("-a", u"--address", type=u"string",
1625
help=u"Address to listen for requests on")
1626
parser.add_option("-p", u"--port", type=u"int",
1627
help=u"Port number to receive requests on")
1628
parser.add_option("--check", action=u"store_true",
1629
help=u"Run self-test")
1630
parser.add_option("--debug", action=u"store_true",
1631
help=u"Debug mode; run in foreground and log to"
1633
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1634
help=u"Debug level for stdout output")
1635
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1636
u" priority string (see GnuTLS documentation)")
1637
parser.add_option("--servicename", type=u"string",
1638
metavar=u"NAME", help=u"Zeroconf service name")
1639
parser.add_option("--configdir", type=u"string",
1640
default=u"/etc/mandos", metavar=u"DIR",
1641
help=u"Directory to search for configuration"
1643
parser.add_option("--no-dbus", action=u"store_false",
1644
dest=u"use_dbus", help=u"Do not provide D-Bus"
1645
u" system bus interface")
1646
parser.add_option("--no-ipv6", action=u"store_false",
1647
dest=u"use_ipv6", help=u"Do not use IPv6")
1648
options = parser.parse_args()[0]
2790
1650
if options.check:
2792
fail_count, test_count = doctest.testmod()
2793
sys.exit(os.EX_OK if fail_count == 0 else 1)
2795
1655
# Default values for config file for server-global settings
2796
server_defaults = { "interface": "",
2801
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2802
":+SIGN-DSA-SHA256",
2803
"servicename": "Mandos",
2809
"statedir": "/var/lib/mandos",
2810
"foreground": "False",
1656
server_defaults = { u"interface": u"",
1661
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1662
u"servicename": u"Mandos",
1663
u"use_dbus": u"True",
1664
u"use_ipv6": u"True",
2814
1668
# Parse config file for server-global settings
2815
1669
server_config = configparser.SafeConfigParser(server_defaults)
2816
1670
del server_defaults
2817
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1671
server_config.read(os.path.join(options.configdir,
2818
1673
# Convert the SafeConfigParser object to a dict
2819
1674
server_settings = server_config.defaults()
2820
1675
# Use the appropriate methods on the non-string config options
2821
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2822
server_settings[option] = server_config.getboolean("DEFAULT",
1676
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1677
server_settings[option] = server_config.getboolean(u"DEFAULT",
2824
1679
if server_settings["port"]:
2825
server_settings["port"] = server_config.getint("DEFAULT",
2827
if server_settings["socket"]:
2828
server_settings["socket"] = server_config.getint("DEFAULT",
2830
# Later, stdin will, and stdout and stderr might, be dup'ed
2831
# over with an opened os.devnull. But we don't want this to
2832
# happen with a supplied network socket.
2833
if 0 <= server_settings["socket"] <= 2:
2834
server_settings["socket"] = os.dup(server_settings
1680
server_settings["port"] = server_config.getint(u"DEFAULT",
2836
1682
del server_config
2838
1684
# Override the settings from the config file with command line
2839
1685
# options, if set.
2840
for option in ("interface", "address", "port", "debug",
2841
"priority", "servicename", "configdir", "use_dbus",
2842
"use_ipv6", "debuglevel", "restore", "statedir",
2843
"socket", "foreground", "zeroconf"):
1686
for option in (u"interface", u"address", u"port", u"debug",
1687
u"priority", u"servicename", u"configdir",
1688
u"use_dbus", u"use_ipv6", u"debuglevel"):
2844
1689
value = getattr(options, option)
2845
1690
if value is not None:
2846
1691
server_settings[option] = value
2848
1693
# Force all strings to be unicode
2849
1694
for option in server_settings.keys():
2850
if isinstance(server_settings[option], bytes):
2851
server_settings[option] = (server_settings[option]
2853
# Force all boolean options to be boolean
2854
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2855
"foreground", "zeroconf"):
2856
server_settings[option] = bool(server_settings[option])
2857
# Debug implies foreground
2858
if server_settings["debug"]:
2859
server_settings["foreground"] = True
1695
if type(server_settings[option]) is str:
1696
server_settings[option] = unicode(server_settings[option])
2860
1697
# Now we have our good server settings in "server_settings"
2862
1699
##################################################################
2864
if (not server_settings["zeroconf"]
2865
and not (server_settings["port"]
2866
or server_settings["socket"] != "")):
2867
parser.error("Needs port or socket to work without Zeroconf")
2869
1701
# For convenience
2870
debug = server_settings["debug"]
2871
debuglevel = server_settings["debuglevel"]
2872
use_dbus = server_settings["use_dbus"]
2873
use_ipv6 = server_settings["use_ipv6"]
2874
stored_state_path = os.path.join(server_settings["statedir"],
2876
foreground = server_settings["foreground"]
2877
zeroconf = server_settings["zeroconf"]
2880
initlogger(debug, logging.DEBUG)
2885
level = getattr(logging, debuglevel.upper())
2886
initlogger(debug, level)
2888
if server_settings["servicename"] != "Mandos":
2889
syslogger.setFormatter(
2890
logging.Formatter('Mandos ({}) [%(process)d]:'
2891
' %(levelname)s: %(message)s'.format(
2892
server_settings["servicename"])))
1702
debug = server_settings[u"debug"]
1703
debuglevel = server_settings[u"debuglevel"]
1704
use_dbus = server_settings[u"use_dbus"]
1705
use_ipv6 = server_settings[u"use_ipv6"]
1707
if server_settings[u"servicename"] != u"Mandos":
1708
syslogger.setFormatter(logging.Formatter
1709
(u'Mandos (%s) [%%(process)d]:'
1710
u' %%(levelname)s: %%(message)s'
1711
% server_settings[u"servicename"]))
2894
1713
# Parse config file with clients
2895
client_config = configparser.SafeConfigParser(Client
2897
client_config.read(os.path.join(server_settings["configdir"],
1714
client_defaults = { u"timeout": u"1h",
1716
u"checker": u"fping -q -- %%(host)s",
1718
u"approved_delay": u"0s",
1719
u"approved_duration": u"1s",
1721
client_config = configparser.SafeConfigParser(client_defaults)
1722
client_config.read(os.path.join(server_settings[u"configdir"],
2900
1725
global mandos_dbus_service
2901
1726
mandos_dbus_service = None
2904
if server_settings["socket"] != "":
2905
socketfd = server_settings["socket"]
2906
tcp_server = MandosServer(
2907
(server_settings["address"], server_settings["port"]),
2909
interface=(server_settings["interface"] or None),
2911
gnutls_priority=server_settings["priority"],
2915
pidfilename = "/run/mandos.pid"
2916
if not os.path.isdir("/run/."):
2917
pidfilename = "/var/run/mandos.pid"
2920
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2921
except IOError as e:
2922
logger.error("Could not open file %r", pidfilename,
1728
tcp_server = MandosServer((server_settings[u"address"],
1729
server_settings[u"port"]),
1731
interface=server_settings[u"interface"],
1734
server_settings[u"priority"],
1736
pidfilename = u"/var/run/mandos.pid"
1738
pidfile = open(pidfilename, u"w")
1740
logger.error(u"Could not open file %r", pidfilename)
2925
for name, group in (("_mandos", "_mandos"),
2926
("mandos", "mandos"),
2927
("nobody", "nogroup")):
1743
uid = pwd.getpwnam(u"_mandos").pw_uid
1744
gid = pwd.getpwnam(u"_mandos").pw_gid
2929
uid = pwd.getpwnam(name).pw_uid
2930
gid = pwd.getpwnam(group).pw_gid
1747
uid = pwd.getpwnam(u"mandos").pw_uid
1748
gid = pwd.getpwnam(u"mandos").pw_gid
2932
1749
except KeyError:
1751
uid = pwd.getpwnam(u"nobody").pw_uid
1752
gid = pwd.getpwnam(u"nobody").pw_gid
2941
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2943
except OSError as error:
2944
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2945
.format(uid, gid, os.strerror(error.errno)))
2946
if error.errno != errno.EPERM:
1759
except OSError, error:
1760
if error[0] != errno.EPERM:
1763
# Enable all possible GnuTLS debugging
1766
if not debug and not debuglevel:
1767
syslogger.setLevel(logging.WARNING)
1768
console.setLevel(logging.WARNING)
1770
level = getattr(logging, debuglevel.upper())
1771
syslogger.setLevel(level)
1772
console.setLevel(level)
2950
# Enable all possible GnuTLS debugging
2952
1775
# "Use a log level over 10 to enable all debugging options."
2953
1776
# - GnuTLS manual
2954
gnutls.global_set_log_level(11)
1777
gnutls.library.functions.gnutls_global_set_log_level(11)
1779
@gnutls.library.types.gnutls_log_func
2957
1780
def debug_gnutls(level, string):
2958
logger.debug("GnuTLS: %s", string[:-1])
2960
gnutls.global_set_log_function(debug_gnutls)
1781
logger.debug(u"GnuTLS: %s", string[:-1])
1783
(gnutls.library.functions
1784
.gnutls_global_set_log_function(debug_gnutls))
2962
1786
# Redirect stdin so all checkers get /dev/null
2963
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1787
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2964
1788
os.dup2(null, sys.stdin.fileno())
2968
# Need to fork before connecting to D-Bus
2970
# Close all input and output, do double fork, etc.
2973
# multiprocessing will use threads, so before we use GObject we
2974
# need to inform GObject that threads will be used.
2975
GObject.threads_init()
1792
# No console logging
1793
logger.removeHandler(console)
2977
1796
global main_loop
2978
1797
# From the Avahi example code
2979
DBusGMainLoop(set_as_default=True)
2980
main_loop = GObject.MainLoop()
1798
DBusGMainLoop(set_as_default=True )
1799
main_loop = gobject.MainLoop()
2981
1800
bus = dbus.SystemBus()
2982
1801
# End of Avahi example code
2985
bus_name = dbus.service.BusName("se.recompile.Mandos",
2988
old_bus_name = dbus.service.BusName(
2989
"se.bsnet.fukt.Mandos", bus,
2991
except dbus.exceptions.DBusException as e:
2992
logger.error("Disabling D-Bus:", exc_info=e)
1804
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1805
bus, do_not_queue=True)
1806
except dbus.exceptions.NameExistsException, e:
1807
logger.error(unicode(e) + u", disabling D-Bus")
2993
1808
use_dbus = False
2994
server_settings["use_dbus"] = False
1809
server_settings[u"use_dbus"] = False
2995
1810
tcp_server.use_dbus = False
2997
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2998
service = AvahiServiceToSyslog(
2999
name = server_settings["servicename"],
3000
servicetype = "_mandos._tcp",
3001
protocol = protocol,
3003
if server_settings["interface"]:
3004
service.interface = if_nametoindex(
3005
server_settings["interface"].encode("utf-8"))
1811
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1812
service = AvahiService(name = server_settings[u"servicename"],
1813
servicetype = u"_mandos._tcp",
1814
protocol = protocol, bus = bus)
1815
if server_settings["interface"]:
1816
service.interface = (if_nametoindex
1817
(str(server_settings[u"interface"])))
1820
# Close all input and output, do double fork, etc.
3007
1823
global multiprocessing_manager
3008
1824
multiprocessing_manager = multiprocessing.Manager()
3010
1826
client_class = Client
3012
1828
client_class = functools.partial(ClientDBus, bus = bus)
3014
client_settings = Client.config_parser(client_config)
3015
old_client_settings = {}
3018
# This is used to redirect stdout and stderr for checker processes
3020
wnull = open(os.devnull, "w") # A writable /dev/null
3021
# Only used if server is running in foreground but not in debug
3023
if debug or not foreground:
3026
# Get client data and settings from last running state.
3027
if server_settings["restore"]:
3029
with open(stored_state_path, "rb") as stored_state:
3030
clients_data, old_client_settings = pickle.load(
3032
os.remove(stored_state_path)
3033
except IOError as e:
3034
if e.errno == errno.ENOENT:
3035
logger.warning("Could not load persistent state:"
3036
" {}".format(os.strerror(e.errno)))
3038
logger.critical("Could not load persistent state:",
3041
except EOFError as e:
3042
logger.warning("Could not load persistent state: "
3046
with PGPEngine() as pgp:
3047
for client_name, client in clients_data.items():
3048
# Skip removed clients
3049
if client_name not in client_settings:
3052
# Decide which value to use after restoring saved state.
3053
# We have three different values: Old config file,
3054
# new config file, and saved state.
3055
# New config value takes precedence if it differs from old
3056
# config value, otherwise use saved state.
3057
for name, value in client_settings[client_name].items():
3059
# For each value in new config, check if it
3060
# differs from the old config value (Except for
3061
# the "secret" attribute)
3062
if (name != "secret"
3064
old_client_settings[client_name][name])):
3065
client[name] = value
3069
# Clients who has passed its expire date can still be
3070
# enabled if its last checker was successful. A Client
3071
# whose checker succeeded before we stored its state is
3072
# assumed to have successfully run all checkers during
3074
if client["enabled"]:
3075
if datetime.datetime.utcnow() >= client["expires"]:
3076
if not client["last_checked_ok"]:
3078
"disabling client {} - Client never "
3079
"performed a successful checker".format(
3081
client["enabled"] = False
3082
elif client["last_checker_status"] != 0:
3084
"disabling client {} - Client last"
3085
" checker failed with error code"
3088
client["last_checker_status"]))
3089
client["enabled"] = False
3091
client["expires"] = (
3092
datetime.datetime.utcnow()
3093
+ client["timeout"])
3094
logger.debug("Last checker succeeded,"
3095
" keeping {} enabled".format(
1829
def client_config_items(config, section):
1830
special_settings = {
1831
"approved_by_default":
1832
lambda: config.getboolean(section,
1833
"approved_by_default"),
1835
for name, value in config.items(section):
3098
client["secret"] = pgp.decrypt(
3099
client["encrypted_secret"],
3100
client_settings[client_name]["secret"])
3102
# If decryption fails, we use secret from new settings
3103
logger.debug("Failed to decrypt {} old secret".format(
3105
client["secret"] = (client_settings[client_name]
3108
# Add/remove clients based on new changes made to config
3109
for client_name in (set(old_client_settings)
3110
- set(client_settings)):
3111
del clients_data[client_name]
3112
for client_name in (set(client_settings)
3113
- set(old_client_settings)):
3114
clients_data[client_name] = client_settings[client_name]
3116
# Create all client objects
3117
for client_name, client in clients_data.items():
3118
tcp_server.clients[client_name] = client_class(
3121
server_settings = server_settings)
1837
yield (name, special_settings[name]())
1841
tcp_server.clients.update(set(
1842
client_class(name = section,
1843
config= dict(client_config_items(
1844
client_config, section)))
1845
for section in client_config.sections()))
3123
1846
if not tcp_server.clients:
3124
logger.warning("No clients defined")
3127
if pidfile is not None:
1847
logger.warning(u"No clients defined")
3128
1851
pid = os.getpid()
3131
print(pid, file=pidfile)
3133
logger.error("Could not write to file %r with PID %d",
1852
pidfile.write(str(pid) + "\n")
1855
logger.error(u"Could not write to file %r with PID %d",
1858
# "pidfile" was never created
1863
signal.signal(signal.SIGINT, signal.SIG_IGN)
3138
1864
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3139
1865
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3143
@alternate_dbus_interfaces(
3144
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3145
class MandosDBusService(DBusObjectWithObjectManager):
1868
class MandosDBusService(dbus.service.Object):
3146
1869
"""A D-Bus proxy object"""
3148
1870
def __init__(self):
3149
dbus.service.Object.__init__(self, bus, "/")
3151
_interface = "se.recompile.Mandos"
3153
@dbus.service.signal(_interface, signature="o")
1871
dbus.service.Object.__init__(self, bus, u"/")
1872
_interface = u"se.bsnet.fukt.Mandos"
1874
@dbus.service.signal(_interface, signature=u"o")
3154
1875
def ClientAdded(self, objpath):
3158
@dbus.service.signal(_interface, signature="ss")
1879
@dbus.service.signal(_interface, signature=u"ss")
3159
1880
def ClientNotFound(self, fingerprint, address):
3163
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3165
@dbus.service.signal(_interface, signature="os")
1884
@dbus.service.signal(_interface, signature=u"os")
3166
1885
def ClientRemoved(self, objpath, name):
3170
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3172
@dbus.service.method(_interface, out_signature="ao")
1889
@dbus.service.method(_interface, out_signature=u"ao")
3173
1890
def GetAllClients(self):
3175
return dbus.Array(c.dbus_object_path for c in
3176
tcp_server.clients.itervalues())
1892
return dbus.Array(c.dbus_object_path
1893
for c in tcp_server.clients)
3178
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3180
1895
@dbus.service.method(_interface,
3181
out_signature="a{oa{sv}}")
1896
out_signature=u"a{oa{sv}}")
3182
1897
def GetAllClientsWithProperties(self):
3184
1899
return dbus.Dictionary(
3185
{ c.dbus_object_path: c.GetAll(
3186
"se.recompile.Mandos.Client")
3187
for c in tcp_server.clients.itervalues() },
1900
((c.dbus_object_path, c.GetAll(u""))
1901
for c in tcp_server.clients),
1902
signature=u"oa{sv}")
3190
@dbus.service.method(_interface, in_signature="o")
1904
@dbus.service.method(_interface, in_signature=u"o")
3191
1905
def RemoveClient(self, object_path):
3193
for c in tcp_server.clients.itervalues():
1907
for c in tcp_server.clients:
3194
1908
if c.dbus_object_path == object_path:
3195
del tcp_server.clients[c.name]
1909
tcp_server.clients.remove(c)
3196
1910
c.remove_from_connection()
3197
# Don't signal the disabling
1911
# Don't signal anything except ClientRemoved
3198
1912
c.disable(quiet=True)
3199
# Emit D-Bus signal for removal
3200
self.client_removed_signal(c)
1914
self.ClientRemoved(object_path, c.name)
3202
1916
raise KeyError(object_path)
3206
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3207
out_signature = "a{oa{sa{sv}}}")
3208
def GetManagedObjects(self):
3210
return dbus.Dictionary(
3211
{ client.dbus_object_path:
3213
{ interface: client.GetAll(interface)
3215
client._get_all_interface_names()})
3216
for client in tcp_server.clients.values()})
3218
def client_added_signal(self, client):
3219
"""Send the new standard signal and the old signal"""
3221
# New standard signal
3222
self.InterfacesAdded(
3223
client.dbus_object_path,
3225
{ interface: client.GetAll(interface)
3227
client._get_all_interface_names()}))
3229
self.ClientAdded(client.dbus_object_path)
3231
def client_removed_signal(self, client):
3232
"""Send the new standard signal and the old signal"""
3234
# New standard signal
3235
self.InterfacesRemoved(
3236
client.dbus_object_path,
3237
client._get_all_interface_names())
3239
self.ClientRemoved(client.dbus_object_path,
3242
1920
mandos_dbus_service = MandosDBusService()
3245
1923
"Cleanup function; run on exit"
3249
multiprocessing.active_children()
3251
if not (tcp_server.clients or client_settings):
3254
# Store client before exiting. Secrets are encrypted with key
3255
# based on what config file has. If config file is
3256
# removed/edited, old secret will thus be unrecovable.
3258
with PGPEngine() as pgp:
3259
for client in tcp_server.clients.itervalues():
3260
key = client_settings[client.name]["secret"]
3261
client.encrypted_secret = pgp.encrypt(client.secret,
3265
# A list of attributes that can not be pickled
3267
exclude = { "bus", "changedstate", "secret",
3268
"checker", "server_settings" }
3269
for name, typ in inspect.getmembers(dbus.service
3273
client_dict["encrypted_secret"] = (client
3275
for attr in client.client_structure:
3276
if attr not in exclude:
3277
client_dict[attr] = getattr(client, attr)
3279
clients[client.name] = client_dict
3280
del client_settings[client.name]["secret"]
3283
with tempfile.NamedTemporaryFile(
3287
dir=os.path.dirname(stored_state_path),
3288
delete=False) as stored_state:
3289
pickle.dump((clients, client_settings), stored_state)
3290
tempname = stored_state.name
3291
os.rename(tempname, stored_state_path)
3292
except (IOError, OSError) as e:
3298
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3299
logger.warning("Could not save persistent state: {}"
3300
.format(os.strerror(e.errno)))
3302
logger.warning("Could not save persistent state:",
3306
# Delete all clients, and settings from config
3307
1926
while tcp_server.clients:
3308
name, client = tcp_server.clients.popitem()
1927
client = tcp_server.clients.pop()
3310
1929
client.remove_from_connection()
3311
# Don't signal the disabling
1930
client.disable_hook = None
1931
# Don't signal anything except ClientRemoved
3312
1932
client.disable(quiet=True)
3313
# Emit D-Bus signal for removal
3315
mandos_dbus_service.client_removed_signal(client)
3316
client_settings.clear()
1935
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
3318
1938
atexit.register(cleanup)
3320
for client in tcp_server.clients.itervalues():
1940
for client in tcp_server.clients:
3322
# Emit D-Bus signal for adding
3323
mandos_dbus_service.client_added_signal(client)
3324
# Need to initiate checking of clients
3326
client.init_checker()
1943
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3328
1946
tcp_server.enable()
3329
1947
tcp_server.server_activate()
3331
1949
# Find out what port we got
3333
service.port = tcp_server.socket.getsockname()[1]
1950
service.port = tcp_server.socket.getsockname()[1]
3335
logger.info("Now listening on address %r, port %d,"
3336
" flowinfo %d, scope_id %d",
3337
*tcp_server.socket.getsockname())
1952
logger.info(u"Now listening on address %r, port %d,"
1953
" flowinfo %d, scope_id %d"
1954
% tcp_server.socket.getsockname())
3339
logger.info("Now listening on address %r, port %d",
3340
*tcp_server.socket.getsockname())
1956
logger.info(u"Now listening on address %r, port %d"
1957
% tcp_server.socket.getsockname())
3342
1959
#service.interface = tcp_server.socket.getsockname()[3]
3346
# From the Avahi example code
3349
except dbus.exceptions.DBusException as error:
3350
logger.critical("D-Bus Exception", exc_info=error)
3353
# End of Avahi example code
1962
# From the Avahi example code
1965
except dbus.exceptions.DBusException, error:
1966
logger.critical(u"DBusException: %s", error)
1969
# End of Avahi example code
3355
GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,
1971
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3356
1972
lambda *args, **kwargs:
3357
1973
(tcp_server.handle_request
3358
1974
(*args[2:], **kwargs) or True))
3360
logger.debug("Starting main loop")
1976
logger.debug(u"Starting main loop")
3361
1977
main_loop.run()
3362
except AvahiError as error:
3363
logger.critical("Avahi Error", exc_info=error)
1978
except AvahiError, error:
1979
logger.critical(u"AvahiError: %s", error)
3366
1982
except KeyboardInterrupt:
3368
print("", file=sys.stderr)
3369
logger.debug("Server received KeyboardInterrupt")
3370
logger.debug("Server exiting")
1985
logger.debug(u"Server received KeyboardInterrupt")
1986
logger.debug(u"Server exiting")
3371
1987
# Must run before the D-Bus bus name gets deregistered
3375
1990
if __name__ == '__main__':