265
196
.replace(b"\n", b"\\n")
266
197
.replace(b"\0", b"\\x00"))
269
200
def encrypt(self, data, password):
270
201
passphrase = self.password_encode(password)
271
202
with tempfile.NamedTemporaryFile(
272
203
dir=self.tempdir) as passfile:
273
204
passfile.write(passphrase)
275
proc = subprocess.Popen([self.gpg, '--symmetric',
206
proc = subprocess.Popen(['gpg', '--symmetric',
276
207
'--passphrase-file',
278
209
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
283
214
if proc.returncode != 0:
284
215
raise PGPError(err)
285
216
return ciphertext
287
218
def decrypt(self, data, password):
288
219
passphrase = self.password_encode(password)
289
220
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
221
dir = self.tempdir) as passfile:
291
222
passfile.write(passphrase)
293
proc = subprocess.Popen([self.gpg, '--decrypt',
224
proc = subprocess.Popen(['gpg', '--decrypt',
294
225
'--passphrase-file',
296
227
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
301
232
if proc.returncode != 0:
302
233
raise PGPError(err)
303
234
return decrypted_plaintext
306
# Pretend that we have an Avahi module
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
332
237
class AvahiError(Exception):
333
238
def __init__(self, value, *args, **kwargs):
334
239
self.value = value
524
418
class AvahiServiceToSyslog(AvahiService):
525
419
def rename(self, *args, **kwargs):
526
420
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
421
ret = AvahiService.rename(self, *args, **kwargs)
529
422
syslogger.setFormatter(logging.Formatter(
530
423
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
531
424
.format(self.name)))
535
# Pretend that we have a GnuTLS module
537
"""This isn't so much a class as it is a module-like namespace."""
539
library = ctypes.util.find_library("gnutls")
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
557
E_NO_CERTIFICATE_FOUND = -49
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
566
class session_int(ctypes.Structure):
568
session_t = ctypes.POINTER(session_int)
570
class certificate_credentials_st(ctypes.Structure):
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
576
class datum_t(ctypes.Structure):
577
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
578
('size', ctypes.c_uint)]
580
class openpgp_crt_int(ctypes.Structure):
582
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
596
if message is None and code is not None:
597
message = gnutls.strerror(code)
598
return super(gnutls.Error, self).__init__(
601
class CertificateSecurityError(Error):
607
self._c_object = gnutls.certificate_credentials_t()
608
gnutls.certificate_allocate_credentials(
609
ctypes.byref(self._c_object))
610
self.type = gnutls.CRD_CERTIFICATE
613
gnutls.certificate_free_credentials(self._c_object)
616
def __init__(self, socket, credentials=None):
617
self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
620
gnutls_flags |= gnutls.NO_TICKETS
622
gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
625
gnutls.set_default_priority(self._c_object)
626
gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
gnutls.handshake_set_private_extensions(self._c_object,
630
if credentials is None:
631
credentials = gnutls.Credentials()
632
gnutls.credentials_set(self._c_object, credentials.type,
633
ctypes.cast(credentials._c_object,
635
self.credentials = credentials
638
gnutls.deinit(self._c_object)
641
return gnutls.handshake(self._c_object)
643
def send(self, data):
647
data_len -= gnutls.record_send(self._c_object,
652
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
654
# Error handling functions
655
def _error_code(result):
656
"""A function to raise exceptions on errors, suitable
657
for the 'restype' attribute on ctypes functions"""
660
if result == gnutls.E_NO_CERTIFICATE_FOUND:
661
raise gnutls.CertificateSecurityError(code=result)
662
raise gnutls.Error(code=result)
664
def _retry_on_error(result, func, arguments):
665
"""A function to retry on some errors, suitable
666
for the 'errcheck' attribute on ctypes functions"""
668
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
669
return _error_code(result)
670
result = func(*arguments)
673
# Unless otherwise indicated, the function declarations below are
674
# all from the gnutls/gnutls.h C header file.
677
priority_set_direct = _library.gnutls_priority_set_direct
678
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
679
ctypes.POINTER(ctypes.c_char_p)]
680
priority_set_direct.restype = _error_code
682
init = _library.gnutls_init
683
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
684
init.restype = _error_code
686
set_default_priority = _library.gnutls_set_default_priority
687
set_default_priority.argtypes = [session_t]
688
set_default_priority.restype = _error_code
690
record_send = _library.gnutls_record_send
691
record_send.argtypes = [session_t, ctypes.c_void_p,
693
record_send.restype = ctypes.c_ssize_t
694
record_send.errcheck = _retry_on_error
696
certificate_allocate_credentials = (
697
_library.gnutls_certificate_allocate_credentials)
698
certificate_allocate_credentials.argtypes = [
699
ctypes.POINTER(certificate_credentials_t)]
700
certificate_allocate_credentials.restype = _error_code
702
certificate_free_credentials = (
703
_library.gnutls_certificate_free_credentials)
704
certificate_free_credentials.argtypes = [
705
certificate_credentials_t]
706
certificate_free_credentials.restype = None
708
handshake_set_private_extensions = (
709
_library.gnutls_handshake_set_private_extensions)
710
handshake_set_private_extensions.argtypes = [session_t,
712
handshake_set_private_extensions.restype = None
714
credentials_set = _library.gnutls_credentials_set
715
credentials_set.argtypes = [session_t, credentials_type_t,
717
credentials_set.restype = _error_code
719
strerror = _library.gnutls_strerror
720
strerror.argtypes = [ctypes.c_int]
721
strerror.restype = ctypes.c_char_p
723
certificate_type_get = _library.gnutls_certificate_type_get
724
certificate_type_get.argtypes = [session_t]
725
certificate_type_get.restype = _error_code
727
certificate_get_peers = _library.gnutls_certificate_get_peers
728
certificate_get_peers.argtypes = [session_t,
729
ctypes.POINTER(ctypes.c_uint)]
730
certificate_get_peers.restype = ctypes.POINTER(datum_t)
732
global_set_log_level = _library.gnutls_global_set_log_level
733
global_set_log_level.argtypes = [ctypes.c_int]
734
global_set_log_level.restype = None
736
global_set_log_function = _library.gnutls_global_set_log_function
737
global_set_log_function.argtypes = [log_func]
738
global_set_log_function.restype = None
740
deinit = _library.gnutls_deinit
741
deinit.argtypes = [session_t]
742
deinit.restype = None
744
handshake = _library.gnutls_handshake
745
handshake.argtypes = [session_t]
746
handshake.restype = _error_code
747
handshake.errcheck = _retry_on_error
749
transport_set_ptr = _library.gnutls_transport_set_ptr
750
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
751
transport_set_ptr.restype = None
753
bye = _library.gnutls_bye
754
bye.argtypes = [session_t, close_request_t]
755
bye.restype = _error_code
756
bye.errcheck = _retry_on_error
758
check_version = _library.gnutls_check_version
759
check_version.argtypes = [ctypes.c_char_p]
760
check_version.restype = ctypes.c_char_p
762
_need_version = b"3.3.0"
763
if check_version(_need_version) is None:
764
raise self.Error("Needs GnuTLS {} or later"
765
.format(_need_version))
767
_tls_rawpk_version = b"3.6.6"
768
has_rawpk = bool(check_version(_tls_rawpk_version))
772
class pubkey_st(ctypes.Structure):
774
pubkey_t = ctypes.POINTER(pubkey_st)
776
x509_crt_fmt_t = ctypes.c_int
778
# All the function declarations below are from
780
pubkey_init = _library.gnutls_pubkey_init
781
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
782
pubkey_init.restype = _error_code
784
pubkey_import = _library.gnutls_pubkey_import
785
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
787
pubkey_import.restype = _error_code
789
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
790
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
791
ctypes.POINTER(ctypes.c_ubyte),
792
ctypes.POINTER(ctypes.c_size_t)]
793
pubkey_get_key_id.restype = _error_code
795
pubkey_deinit = _library.gnutls_pubkey_deinit
796
pubkey_deinit.argtypes = [pubkey_t]
797
pubkey_deinit.restype = None
799
# All the function declarations below are from
802
openpgp_crt_init = _library.gnutls_openpgp_crt_init
803
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
804
openpgp_crt_init.restype = _error_code
806
openpgp_crt_import = _library.gnutls_openpgp_crt_import
807
openpgp_crt_import.argtypes = [openpgp_crt_t,
808
ctypes.POINTER(datum_t),
810
openpgp_crt_import.restype = _error_code
812
openpgp_crt_verify_self = \
813
_library.gnutls_openpgp_crt_verify_self
814
openpgp_crt_verify_self.argtypes = [
817
ctypes.POINTER(ctypes.c_uint),
819
openpgp_crt_verify_self.restype = _error_code
821
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
822
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
823
openpgp_crt_deinit.restype = None
825
openpgp_crt_get_fingerprint = (
826
_library.gnutls_openpgp_crt_get_fingerprint)
827
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
831
openpgp_crt_get_fingerprint.restype = _error_code
833
if check_version(b"3.6.4"):
834
certificate_type_get2 = _library.gnutls_certificate_type_get2
835
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
836
certificate_type_get2.restype = _error_code
838
# Remove non-public functions
839
del _error_code, _retry_on_error
842
def call_pipe(connection, # : multiprocessing.Connection
843
func, *args, **kwargs):
844
"""This function is meant to be called by multiprocessing.Process
846
This function runs func(*args, **kwargs), and writes the resulting
847
return value on the provided multiprocessing.Connection.
849
connection.send(func(*args, **kwargs))
428
class Client(object):
854
429
"""A representation of a client host served by this server.
857
432
approved: bool(); 'None' if not yet approved/disapproved
858
433
approval_delay: datetime.timedelta(); Time to wait for approval
859
434
approval_duration: datetime.timedelta(); Duration of one approval
860
checker: multiprocessing.Process(); a running checker process used
861
to see if the client lives. 'None' if no process is
863
checker_callback_tag: a GLib event source tag, or None
435
checker: subprocess.Popen(); a running checker process used
436
to see if the client lives.
437
'None' if no process is running.
438
checker_callback_tag: a gobject event source tag, or None
864
439
checker_command: string; External command which is run to check
865
440
if client lives. %() expansions are done at
866
441
runtime with vars(self) as dict, so that for
867
442
instance %(name)s can be used in the command.
868
checker_initiator_tag: a GLib event source tag, or None
443
checker_initiator_tag: a gobject event source tag, or None
869
444
created: datetime.datetime(); (UTC) object creation
870
445
client_structure: Object describing what attributes a client has
871
446
and is used for storing the client at exit
872
447
current_checker_command: string; current running checker_command
873
disable_initiator_tag: a GLib event source tag, or None
448
disable_initiator_tag: a gobject event source tag, or None
875
450
fingerprint: string (40 or 32 hexadecimal digits); used to
876
uniquely identify an OpenPGP client
877
key_id: string (64 hexadecimal digits); used to uniquely identify
878
a client using raw public keys
451
uniquely identify the client
879
452
host: string; available for use by the checker command
880
453
interval: datetime.timedelta(); How often to start a new checker
881
454
last_approval_request: datetime.datetime(); (UTC) or None
1038
604
logger.info("Disabling client %s", self.name)
1039
605
if getattr(self, "disable_initiator_tag", None) is not None:
1040
GLib.source_remove(self.disable_initiator_tag)
606
gobject.source_remove(self.disable_initiator_tag)
1041
607
self.disable_initiator_tag = None
1042
608
self.expires = None
1043
609
if getattr(self, "checker_initiator_tag", None) is not None:
1044
GLib.source_remove(self.checker_initiator_tag)
610
gobject.source_remove(self.checker_initiator_tag)
1045
611
self.checker_initiator_tag = None
1046
612
self.stop_checker()
1047
613
self.enabled = False
1049
615
self.send_changedstate()
1050
# Do not run this again if called by a GLib.timeout_add
616
# Do not run this again if called by a gobject.timeout_add
1053
619
def __del__(self):
1056
622
def init_checker(self):
1057
623
# Schedule a new checker to be started an 'interval' from now,
1058
624
# and every interval from then on.
1059
625
if self.checker_initiator_tag is not None:
1060
GLib.source_remove(self.checker_initiator_tag)
1061
self.checker_initiator_tag = GLib.timeout_add(
1062
random.randrange(int(self.interval.total_seconds() * 1000
626
gobject.source_remove(self.checker_initiator_tag)
627
self.checker_initiator_tag = gobject.timeout_add(
628
int(self.interval.total_seconds() * 1000),
1064
629
self.start_checker)
1065
630
# Schedule a disable() when 'timeout' has passed
1066
631
if self.disable_initiator_tag is not None:
1067
GLib.source_remove(self.disable_initiator_tag)
1068
self.disable_initiator_tag = GLib.timeout_add(
632
gobject.source_remove(self.disable_initiator_tag)
633
self.disable_initiator_tag = gobject.timeout_add(
1069
634
int(self.timeout.total_seconds() * 1000), self.disable)
1070
635
# Also start a new checker *right now*.
1071
636
self.start_checker()
1073
def checker_callback(self, source, condition, connection,
638
def checker_callback(self, pid, condition, command):
1075
639
"""The checker has completed, so take appropriate actions."""
1076
# Read return code from connection (see call_pipe)
1077
returncode = connection.recv()
1079
if self.checker is not None:
1081
640
self.checker_callback_tag = None
1082
641
self.checker = None
1085
self.last_checker_status = returncode
1086
self.last_checker_signal = None
642
if os.WIFEXITED(condition):
643
self.last_checker_status = os.WEXITSTATUS(condition)
1087
644
if self.last_checker_status == 0:
1088
645
logger.info("Checker for %(name)s succeeded",
1152
716
return True # Try again later
1153
717
self.current_checker_command = command
1154
logger.info("Starting checker %r for %s", command,
1156
# We don't need to redirect stdout and stderr, since
1157
# in normal mode, that is already done by daemon(),
1158
# and in debug mode we don't want to. (Stdin is
1159
# always replaced by /dev/null.)
1160
# The exception is when not debugging but nevertheless
1161
# running in the foreground; use the previously
1163
popen_args = {"close_fds": True,
1166
if (not self.server_settings["debug"]
1167
and self.server_settings["foreground"]):
1168
popen_args.update({"stdout": wnull,
1170
pipe = multiprocessing.Pipe(duplex=False)
1171
self.checker = multiprocessing.Process(
1173
args=(pipe[1], subprocess.call, command),
1175
self.checker.start()
1176
self.checker_callback_tag = GLib.io_add_watch(
1177
GLib.IOChannel.unix_new(pipe[0].fileno()),
1178
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1179
self.checker_callback, pipe[0], command)
1180
# Re-run this periodically if run by GLib.timeout_add
719
logger.info("Starting checker %r for %s", command,
721
# We don't need to redirect stdout and stderr, since
722
# in normal mode, that is already done by daemon(),
723
# and in debug mode we don't want to. (Stdin is
724
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
733
self.checker = subprocess.Popen(command,
738
except OSError as error:
739
logger.error("Failed to start subprocess",
742
self.checker_callback_tag = gobject.child_watch_add(
743
self.checker.pid, self.checker_callback, data=command)
744
# The checker may have completed before the gobject
745
# watch was added. Check for this.
747
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
748
except OSError as error:
749
if error.errno == errno.ECHILD:
750
# This should never happen
751
logger.error("Child process vanished",
756
gobject.source_remove(self.checker_callback_tag)
757
self.checker_callback(pid, status, command)
758
# Re-run this periodically if run by gobject.timeout_add
1183
761
def stop_checker(self):
1184
762
"""Force the checker process, if any, to stop."""
1185
763
if self.checker_callback_tag:
1186
GLib.source_remove(self.checker_callback_tag)
764
gobject.source_remove(self.checker_callback_tag)
1187
765
self.checker_callback_tag = None
1188
766
if getattr(self, "checker", None) is None:
1190
768
logger.debug("Stopping checker for %(name)s", vars(self))
1191
self.checker.terminate()
770
self.checker.terminate()
772
#if self.checker.poll() is None:
773
# self.checker.kill()
774
except OSError as error:
775
if error.errno != errno.ESRCH: # No such process
1192
777
self.checker = None
1312
896
for cls in self.__class__.__mro__
1313
897
for name, athing in
1314
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1316
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1318
path_keyword='object_path',
1319
connection_keyword='connection')
1320
def Introspect(self, object_path, connection):
1321
"""Overloading of standard D-Bus method.
1323
Inserts annotation tags on methods and signals.
1325
xmlstring = dbus.service.Object.Introspect(self, object_path,
1328
document = xml.dom.minidom.parseString(xmlstring)
1330
for if_tag in document.getElementsByTagName("interface"):
1331
# Add annotation tags
1332
for typ in ("method", "signal"):
1333
for tag in if_tag.getElementsByTagName(typ):
1335
for name, prop in (self.
1336
_get_all_dbus_things(typ)):
1337
if (name == tag.getAttribute("name")
1338
and prop._dbus_interface
1339
== if_tag.getAttribute("name")):
1340
annots.update(getattr(
1341
prop, "_dbus_annotations", {}))
1342
for name, value in annots.items():
1343
ann_tag = document.createElement(
1345
ann_tag.setAttribute("name", name)
1346
ann_tag.setAttribute("value", value)
1347
tag.appendChild(ann_tag)
1348
# Add interface annotation tags
1349
for annotation, value in dict(
1350
itertools.chain.from_iterable(
1351
annotations().items()
1352
for name, annotations
1353
in self._get_all_dbus_things("interface")
1354
if name == if_tag.getAttribute("name")
1356
ann_tag = document.createElement("annotation")
1357
ann_tag.setAttribute("name", annotation)
1358
ann_tag.setAttribute("value", value)
1359
if_tag.appendChild(ann_tag)
1360
# Fix argument name for the Introspect method itself
1361
if (if_tag.getAttribute("name")
1362
== dbus.INTROSPECTABLE_IFACE):
1363
for cn in if_tag.getElementsByTagName("method"):
1364
if cn.getAttribute("name") == "Introspect":
1365
for arg in cn.getElementsByTagName("arg"):
1366
if (arg.getAttribute("direction")
1368
arg.setAttribute("name",
1370
xmlstring = document.toxml("utf-8")
1372
except (AttributeError, xml.dom.DOMException,
1373
xml.parsers.expat.ExpatError) as error:
1374
logger.error("Failed to override Introspection method",
1379
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1380
"""A D-Bus object with properties.
1382
Classes inheriting from this can use the dbus_service_property
1383
decorator to expose methods as D-Bus properties. It exposes the
1384
standard Get(), Set(), and GetAll() methods on the D-Bus.
1387
900
def _get_dbus_property(self, interface_name, property_name):
1388
901
"""Returns a bound method if one exists which is a D-Bus
1389
902
property with the specified name and interface.
1543
1060
return xmlstring
1547
dbus.OBJECT_MANAGER_IFACE
1548
except AttributeError:
1549
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1552
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1553
"""A D-Bus object with an ObjectManager.
1555
Classes inheriting from this exposes the standard
1556
GetManagedObjects call and the InterfacesAdded and
1557
InterfacesRemoved signals on the standard
1558
"org.freedesktop.DBus.ObjectManager" interface.
1560
Note: No signals are sent automatically; they must be sent
1563
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1564
out_signature="a{oa{sa{sv}}}")
1565
def GetManagedObjects(self):
1566
"""This function must be overridden"""
1567
raise NotImplementedError()
1569
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1570
signature="oa{sa{sv}}")
1571
def InterfacesAdded(self, object_path, interfaces_and_properties):
1574
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1575
def InterfacesRemoved(self, object_path, interfaces):
1578
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1580
path_keyword='object_path',
1581
connection_keyword='connection')
1582
def Introspect(self, object_path, connection):
1583
"""Overloading of standard D-Bus method.
1585
Override return argument name of GetManagedObjects to be
1586
"objpath_interfaces_and_properties"
1588
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1592
document = xml.dom.minidom.parseString(xmlstring)
1594
for if_tag in document.getElementsByTagName("interface"):
1595
# Fix argument name for the GetManagedObjects method
1596
if (if_tag.getAttribute("name")
1597
== dbus.OBJECT_MANAGER_IFACE):
1598
for cn in if_tag.getElementsByTagName("method"):
1599
if (cn.getAttribute("name")
1600
== "GetManagedObjects"):
1601
for arg in cn.getElementsByTagName("arg"):
1602
if (arg.getAttribute("direction")
1606
"objpath_interfaces"
1608
xmlstring = document.toxml("utf-8")
1610
except (AttributeError, xml.dom.DOMException,
1611
xml.parsers.expat.ExpatError) as error:
1612
logger.error("Failed to override Introspection method",
1617
1063
def datetime_to_dbus(dt, variant_level=0):
1618
1064
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1620
return dbus.String("", variant_level=variant_level)
1066
return dbus.String("", variant_level = variant_level)
1621
1067
return dbus.String(dt.isoformat(), variant_level=variant_level)
2405
1819
delay -= time2 - time
2408
session.send(client.secret)
2409
except gnutls.Error as error:
2410
logger.warning("gnutls send failed",
1822
while sent_size < len(client.secret):
1824
sent = session.send(client.secret[sent_size:])
1825
except gnutls.errors.GNUTLSError as error:
1826
logger.warning("gnutls send failed",
1829
logger.debug("Sent: %d, remaining: %d", sent,
1830
len(client.secret) - (sent_size
2414
1834
logger.info("Sending secret to %s", client.name)
2415
1835
# bump the timeout using extended_timeout
2416
1836
client.bump_timeout(client.extended_timeout)
2417
1837
if self.server.use_dbus:
2418
1838
# Emit D-Bus signal
2419
1839
client.GotSecret()
2422
1842
if approval_required:
2423
1843
client.approvals_pending -= 1
2426
except gnutls.Error as error:
1846
except gnutls.errors.GNUTLSError as error:
2427
1847
logger.warning("GnuTLS bye failed",
2428
1848
exc_info=error)
2431
1851
def peer_certificate(session):
2432
"Return the peer's certificate as a bytestring"
2434
cert_type = gnutls.certificate_type_get2(session._c_object,
2436
except AttributeError:
2437
cert_type = gnutls.certificate_type_get(session._c_object)
2438
if gnutls.has_rawpk:
2439
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2441
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2442
# If not a valid certificate type...
2443
if cert_type not in valid_cert_types:
2444
logger.info("Cert type %r not in %r", cert_type,
2446
# ...return invalid data
1852
"Return the peer's OpenPGP certificate as a bytestring"
1853
# If not an OpenPGP certificate...
1854
if (gnutls.library.functions.gnutls_certificate_type_get(
1856
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1857
# ...do the normal thing
1858
return session.peer_certificate
2448
1859
list_size = ctypes.c_uint(1)
2449
cert_list = (gnutls.certificate_get_peers
1860
cert_list = (gnutls.library.functions
1861
.gnutls_certificate_get_peers
2450
1862
(session._c_object, ctypes.byref(list_size)))
2451
1863
if not bool(cert_list) and list_size.value != 0:
2452
raise gnutls.Error("error getting peer certificate")
1864
raise gnutls.errors.GNUTLSError("error getting peer"
2453
1866
if list_size.value == 0:
2455
1868
cert = cert_list[0]
2456
1869
return ctypes.string_at(cert.data, cert.size)
2459
def key_id(certificate):
2460
"Convert a certificate bytestring to a hexdigit key ID"
2461
# New GnuTLS "datum" with the public key
2462
datum = gnutls.datum_t(
2463
ctypes.cast(ctypes.c_char_p(certificate),
2464
ctypes.POINTER(ctypes.c_ubyte)),
2465
ctypes.c_uint(len(certificate)))
2466
# XXX all these need to be created in the gnutls "module"
2467
# New empty GnuTLS certificate
2468
pubkey = gnutls.pubkey_t()
2469
gnutls.pubkey_init(ctypes.byref(pubkey))
2470
# Import the raw public key into the certificate
2471
gnutls.pubkey_import(pubkey,
2472
ctypes.byref(datum),
2473
gnutls.X509_FMT_DER)
2474
# New buffer for the key ID
2475
buf = ctypes.create_string_buffer(32)
2476
buf_len = ctypes.c_size_t(len(buf))
2477
# Get the key ID from the raw public key into the buffer
2478
gnutls.pubkey_get_key_id(
2480
gnutls.KEYID_USE_SHA256,
2481
ctypes.cast(ctypes.byref(buf),
2482
ctypes.POINTER(ctypes.c_ubyte)),
2483
ctypes.byref(buf_len))
2484
# Deinit the certificate
2485
gnutls.pubkey_deinit(pubkey)
2487
# Convert the buffer to a Python bytestring
2488
key_id = ctypes.string_at(buf, buf_len.value)
2489
# Convert the bytestring to hexadecimal notation
2490
hex_key_id = binascii.hexlify(key_id).upper()
2494
1872
def fingerprint(openpgp):
2495
1873
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2496
1874
# New GnuTLS "datum" with the OpenPGP public key
2497
datum = gnutls.datum_t(
1875
datum = gnutls.library.types.gnutls_datum_t(
2498
1876
ctypes.cast(ctypes.c_char_p(openpgp),
2499
1877
ctypes.POINTER(ctypes.c_ubyte)),
2500
1878
ctypes.c_uint(len(openpgp)))
2501
1879
# New empty GnuTLS certificate
2502
crt = gnutls.openpgp_crt_t()
2503
gnutls.openpgp_crt_init(ctypes.byref(crt))
1880
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1881
gnutls.library.functions.gnutls_openpgp_crt_init(
2504
1883
# Import the OpenPGP public key into the certificate
2505
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2506
gnutls.OPENPGP_FMT_RAW)
1884
gnutls.library.functions.gnutls_openpgp_crt_import(
1885
crt, ctypes.byref(datum),
1886
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
2507
1887
# Verify the self signature in the key
2508
1888
crtverify = ctypes.c_uint()
2509
gnutls.openpgp_crt_verify_self(crt, 0,
2510
ctypes.byref(crtverify))
1889
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1890
crt, 0, ctypes.byref(crtverify))
2511
1891
if crtverify.value != 0:
2512
gnutls.openpgp_crt_deinit(crt)
2513
raise gnutls.CertificateSecurityError(code
1892
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1893
raise gnutls.errors.CertificateSecurityError(
2515
1895
# New buffer for the fingerprint
2516
1896
buf = ctypes.create_string_buffer(20)
2517
1897
buf_len = ctypes.c_size_t()
2518
1898
# Get the fingerprint from the certificate into the buffer
2519
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2520
ctypes.byref(buf_len))
1899
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1900
crt, ctypes.byref(buf), ctypes.byref(buf_len))
2521
1901
# Deinit the certificate
2522
gnutls.openpgp_crt_deinit(crt)
1902
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2523
1903
# Convert the buffer to a Python bytestring
2524
1904
fpr = ctypes.string_at(buf, buf_len.value)
2525
1905
# Convert the bytestring to hexadecimal notation
2614
1993
# socket_wrapper(), if socketfd was set.
2615
1994
socketserver.TCPServer.__init__(self, server_address,
2616
1995
RequestHandlerClass)
2618
1997
def server_bind(self):
2619
1998
"""This overrides the normal server_bind() function
2620
1999
to bind to an interface if one was specified, and also NOT to
2621
2000
bind to an address or port if they were not specified."""
2622
global SO_BINDTODEVICE
2623
2001
if self.interface is not None:
2624
2002
if SO_BINDTODEVICE is None:
2625
# Fall back to a hard-coded value which seems to be
2627
logger.warning("SO_BINDTODEVICE not found, trying 25")
2628
SO_BINDTODEVICE = 25
2630
self.socket.setsockopt(
2631
socket.SOL_SOCKET, SO_BINDTODEVICE,
2632
(self.interface + "\0").encode("utf-8"))
2633
except socket.error as error:
2634
if error.errno == errno.EPERM:
2635
logger.error("No permission to bind to"
2636
" interface %s", self.interface)
2637
elif error.errno == errno.ENOPROTOOPT:
2638
logger.error("SO_BINDTODEVICE not available;"
2639
" cannot bind to interface %s",
2641
elif error.errno == errno.ENODEV:
2642
logger.error("Interface %s does not exist,"
2643
" cannot bind", self.interface)
2003
logger.error("SO_BINDTODEVICE does not exist;"
2004
" cannot bind to interface %s",
2008
self.socket.setsockopt(
2009
socket.SOL_SOCKET, SO_BINDTODEVICE,
2010
(self.interface + "\0").encode("utf-8"))
2011
except socket.error as error:
2012
if error.errno == errno.EPERM:
2013
logger.error("No permission to bind to"
2014
" interface %s", self.interface)
2015
elif error.errno == errno.ENOPROTOOPT:
2016
logger.error("SO_BINDTODEVICE not available;"
2017
" cannot bind to interface %s",
2019
elif error.errno == errno.ENODEV:
2020
logger.error("Interface %s does not exist,"
2021
" cannot bind", self.interface)
2646
2024
# Only bind(2) the socket if we really need to.
2647
2025
if self.server_address[0] or self.server_address[1]:
2648
if self.server_address[1]:
2649
self.allow_reuse_address = True
2650
2026
if not self.server_address[0]:
2651
2027
if self.address_family == socket.AF_INET6:
2652
any_address = "::" # in6addr_any
2028
any_address = "::" # in6addr_any
2654
any_address = "0.0.0.0" # INADDR_ANY
2030
any_address = "0.0.0.0" # INADDR_ANY
2655
2031
self.server_address = (any_address,
2656
2032
self.server_address[1])
2657
2033
elif not self.server_address[1]:
2691
2067
self.gnutls_priority = gnutls_priority
2692
2068
IPv6_TCPServer.__init__(self, server_address,
2693
2069
RequestHandlerClass,
2694
interface=interface,
2070
interface = interface,
2071
use_ipv6 = use_ipv6,
2072
socketfd = socketfd)
2698
2074
def server_activate(self):
2699
2075
if self.enabled:
2700
2076
return socketserver.TCPServer.server_activate(self)
2702
2078
def enable(self):
2703
2079
self.enabled = True
2705
2081
def add_pipe(self, parent_pipe, proc):
2706
2082
# Call "handle_ipc" for both data and EOF events
2708
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2709
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2083
gobject.io_add_watch(
2084
parent_pipe.fileno(),
2085
gobject.IO_IN | gobject.IO_HUP,
2710
2086
functools.partial(self.handle_ipc,
2711
parent_pipe=parent_pipe,
2087
parent_pipe = parent_pipe,
2714
2090
def handle_ipc(self, source, condition,
2715
2091
parent_pipe=None,
2717
2093
client_object=None):
2718
2094
# error, or the other end of multiprocessing.Pipe has closed
2719
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2095
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2720
2096
# Wait for other process to exit
2724
2100
# Read a request from the child
2725
2101
request = parent_pipe.recv()
2726
2102
command = request[0]
2728
2104
if command == 'init':
2729
key_id = request[1].decode("ascii")
2730
fpr = request[2].decode("ascii")
2731
address = request[3]
2733
for c in self.clients.values():
2734
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2735
"27AE41E4649B934CA495991B7852B855"):
2737
if key_id and c.key_id == key_id:
2740
if fpr and c.fingerprint == fpr:
2106
address = request[2]
2108
for c in self.clients.itervalues():
2109
if c.fingerprint == fpr:
2744
logger.info("Client not found for key ID: %s, address"
2745
": %s", key_id or fpr, address)
2113
logger.info("Client not found for fingerprint: %s, ad"
2114
"dress: %s", fpr, address)
2746
2115
if self.use_dbus:
2747
2116
# Emit D-Bus signal
2748
mandos_dbus_service.ClientNotFound(key_id or fpr,
2117
mandos_dbus_service.ClientNotFound(fpr,
2750
2119
parent_pipe.send(False)
2754
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2755
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2122
gobject.io_add_watch(
2123
parent_pipe.fileno(),
2124
gobject.IO_IN | gobject.IO_HUP,
2756
2125
functools.partial(self.handle_ipc,
2757
parent_pipe=parent_pipe,
2759
client_object=client))
2126
parent_pipe = parent_pipe,
2128
client_object = client))
2760
2129
parent_pipe.send(True)
2761
2130
# remove the old hook in favor of the new above hook on
2765
2134
funcname = request[1]
2766
2135
args = request[2]
2767
2136
kwargs = request[3]
2769
2138
parent_pipe.send(('data', getattr(client_object,
2770
2139
funcname)(*args,
2773
2142
if command == 'getattr':
2774
2143
attrname = request[1]
2775
if isinstance(client_object.__getattribute__(attrname),
2776
collections.abc.Callable):
2144
if callable(client_object.__getattribute__(attrname)):
2777
2145
parent_pipe.send(('function', ))
2779
2147
parent_pipe.send((
2780
2148
'data', client_object.__getattribute__(attrname)))
2782
2150
if command == 'setattr':
2783
2151
attrname = request[1]
2784
2152
value = request[2]
2785
2153
setattr(client_object, attrname, value)
2790
2158
def rfc3339_duration_to_delta(duration):
2791
2159
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2793
>>> timedelta = datetime.timedelta
2794
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2796
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2798
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2800
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2802
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2804
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2806
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2161
>>> rfc3339_duration_to_delta("P7D")
2162
datetime.timedelta(7)
2163
>>> rfc3339_duration_to_delta("PT60S")
2164
datetime.timedelta(0, 60)
2165
>>> rfc3339_duration_to_delta("PT60M")
2166
datetime.timedelta(0, 3600)
2167
>>> rfc3339_duration_to_delta("PT24H")
2168
datetime.timedelta(1)
2169
>>> rfc3339_duration_to_delta("P1W")
2170
datetime.timedelta(7)
2171
>>> rfc3339_duration_to_delta("PT5M30S")
2172
datetime.timedelta(0, 330)
2173
>>> rfc3339_duration_to_delta("P1DT3M20S")
2174
datetime.timedelta(1, 200)
2811
2177
# Parsing an RFC 3339 duration with regular expressions is not
2812
2178
# possible - there would have to be multiple places for the same
2813
2179
# values, like seconds. The current code, while more esoteric, is
2814
2180
# cleaner without depending on a parsing library. If Python had a
2815
2181
# built-in library for parsing we would use it, but we'd like to
2816
2182
# avoid excessive use of external libraries.
2818
2184
# New type for defining tokens, syntax, and semantics all-in-one
2819
2185
Token = collections.namedtuple("Token", (
2820
2186
"regexp", # To match token; if "value" is not None, must have
3221
2577
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3222
2578
service = AvahiServiceToSyslog(
3223
name=server_settings["servicename"],
3224
servicetype="_mandos._tcp",
2579
name = server_settings["servicename"],
2580
servicetype = "_mandos._tcp",
2581
protocol = protocol,
3227
2583
if server_settings["interface"]:
3228
2584
service.interface = if_nametoindex(
3229
2585
server_settings["interface"].encode("utf-8"))
3231
2587
global multiprocessing_manager
3232
2588
multiprocessing_manager = multiprocessing.Manager()
3234
2590
client_class = Client
3236
client_class = functools.partial(ClientDBus, bus=bus)
2592
client_class = functools.partial(ClientDBus, bus = bus)
3238
2594
client_settings = Client.config_parser(client_config)
3239
2595
old_client_settings = {}
3240
2596
clients_data = {}
3242
2598
# This is used to redirect stdout and stderr for checker processes
3244
wnull = open(os.devnull, "w") # A writable /dev/null
2600
wnull = open(os.devnull, "w") # A writable /dev/null
3245
2601
# Only used if server is running in foreground but not in debug
3247
2603
if debug or not foreground:
3250
2606
# Get client data and settings from last running state.
3251
2607
if server_settings["restore"]:
3253
2609
with open(stored_state_path, "rb") as stored_state:
3254
if sys.version_info.major == 2:
3255
clients_data, old_client_settings = pickle.load(
3258
bytes_clients_data, bytes_old_client_settings = (
3259
pickle.load(stored_state, encoding="bytes"))
3260
# Fix bytes to strings
3263
clients_data = {(key.decode("utf-8")
3264
if isinstance(key, bytes)
3267
bytes_clients_data.items()}
3268
del bytes_clients_data
3269
for key in clients_data:
3270
value = {(k.decode("utf-8")
3271
if isinstance(k, bytes) else k): v
3273
clients_data[key].items()}
3274
clients_data[key] = value
3276
value["client_structure"] = [
3278
if isinstance(s, bytes)
3280
value["client_structure"]]
3281
# .name, .host, and .checker_command
3282
for k in ("name", "host", "checker_command"):
3283
if isinstance(value[k], bytes):
3284
value[k] = value[k].decode("utf-8")
3285
if "key_id" not in value:
3286
value["key_id"] = ""
3287
elif "fingerprint" not in value:
3288
value["fingerprint"] = ""
3289
# old_client_settings
3291
old_client_settings = {
3292
(key.decode("utf-8")
3293
if isinstance(key, bytes)
3296
bytes_old_client_settings.items()}
3297
del bytes_old_client_settings
3298
# .host and .checker_command
3299
for value in old_client_settings.values():
3300
for attribute in ("host", "checker_command"):
3301
if isinstance(value[attribute], bytes):
3302
value[attribute] = (value[attribute]
2610
clients_data, old_client_settings = pickle.load(
3304
2612
os.remove(stored_state_path)
3305
2613
except IOError as e:
3306
2614
if e.errno == errno.ENOENT:
3406
2714
pidfilename, pid)
3408
2716
del pidfilename
3410
for termsig in (signal.SIGHUP, signal.SIGTERM):
3411
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3412
lambda: main_loop.quit() and False)
2718
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2719
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3416
2723
@alternate_dbus_interfaces(
3417
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3418
class MandosDBusService(DBusObjectWithObjectManager):
2724
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2725
class MandosDBusService(DBusObjectWithProperties):
3419
2726
"""A D-Bus proxy object"""
3421
2728
def __init__(self):
3422
2729
dbus.service.Object.__init__(self, bus, "/")
3424
2731
_interface = "se.recompile.Mandos"
2733
@dbus_interface_annotations(_interface)
2736
"org.freedesktop.DBus.Property.EmitsChangedSignal":
3426
2739
@dbus.service.signal(_interface, signature="o")
3427
2740
def ClientAdded(self, objpath):
3431
2744
@dbus.service.signal(_interface, signature="ss")
3432
def ClientNotFound(self, key_id, address):
2745
def ClientNotFound(self, fingerprint, address):
3436
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3438
2749
@dbus.service.signal(_interface, signature="os")
3439
2750
def ClientRemoved(self, objpath, name):
3443
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3445
2754
@dbus.service.method(_interface, out_signature="ao")
3446
2755
def GetAllClients(self):
3448
2757
return dbus.Array(c.dbus_object_path for c in
3449
tcp_server.clients.values())
3451
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2758
tcp_server.clients.itervalues())
3453
2760
@dbus.service.method(_interface,
3454
2761
out_signature="a{oa{sv}}")
3455
2762
def GetAllClientsWithProperties(self):
3457
2764
return dbus.Dictionary(
3458
{c.dbus_object_path: c.GetAll(
3459
"se.recompile.Mandos.Client")
3460
for c in tcp_server.clients.values()},
2765
{ c.dbus_object_path: c.GetAll("")
2766
for c in tcp_server.clients.itervalues() },
3461
2767
signature="oa{sv}")
3463
2769
@dbus.service.method(_interface, in_signature="o")
3464
2770
def RemoveClient(self, object_path):
3466
for c in tcp_server.clients.values():
2772
for c in tcp_server.clients.itervalues():
3467
2773
if c.dbus_object_path == object_path:
3468
2774
del tcp_server.clients[c.name]
3469
2775
c.remove_from_connection()
3470
# Don't signal the disabling
2776
# Don't signal anything except ClientRemoved
3471
2777
c.disable(quiet=True)
3472
# Emit D-Bus signal for removal
3473
self.client_removed_signal(c)
2779
self.ClientRemoved(object_path, c.name)
3475
2781
raise KeyError(object_path)
3479
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3480
out_signature="a{oa{sa{sv}}}")
3481
def GetManagedObjects(self):
3483
return dbus.Dictionary(
3484
{client.dbus_object_path:
3486
{interface: client.GetAll(interface)
3488
client._get_all_interface_names()})
3489
for client in tcp_server.clients.values()})
3491
def client_added_signal(self, client):
3492
"""Send the new standard signal and the old signal"""
3494
# New standard signal
3495
self.InterfacesAdded(
3496
client.dbus_object_path,
3498
{interface: client.GetAll(interface)
3500
client._get_all_interface_names()}))
3502
self.ClientAdded(client.dbus_object_path)
3504
def client_removed_signal(self, client):
3505
"""Send the new standard signal and the old signal"""
3507
# New standard signal
3508
self.InterfacesRemoved(
3509
client.dbus_object_path,
3510
client._get_all_interface_names())
3512
self.ClientRemoved(client.dbus_object_path,
3515
2785
mandos_dbus_service = MandosDBusService()
3517
# Save modules to variables to exempt the modules from being
3518
# unloaded before the function registered with atexit() is run.
3519
mp = multiprocessing
3523
2788
"Cleanup function; run on exit"
3525
2790
service.cleanup()
3527
mp.active_children()
2792
multiprocessing.active_children()
3529
2794
if not (tcp_server.clients or client_settings):
3532
2797
# Store client before exiting. Secrets are encrypted with key
3533
2798
# based on what config file has. If config file is
3534
2799
# removed/edited, old secret will thus be unrecovable.
3536
2801
with PGPEngine() as pgp:
3537
for client in tcp_server.clients.values():
2802
for client in tcp_server.clients.itervalues():
3538
2803
key = client_settings[client.name]["secret"]
3539
2804
client.encrypted_secret = pgp.encrypt(client.secret,
3541
2806
client_dict = {}
3543
2808
# A list of attributes that can not be pickled
3545
exclude = {"bus", "changedstate", "secret",
3546
"checker", "server_settings"}
2810
exclude = { "bus", "changedstate", "secret",
2811
"checker", "server_settings" }
3547
2812
for name, typ in inspect.getmembers(dbus.service
3549
2814
exclude.add(name)
3551
2816
client_dict["encrypted_secret"] = (client
3552
2817
.encrypted_secret)
3553
2818
for attr in client.client_structure:
3554
2819
if attr not in exclude:
3555
2820
client_dict[attr] = getattr(client, attr)
3557
2822
clients[client.name] = client_dict
3558
2823
del client_settings[client.name]["secret"]
3561
2826
with tempfile.NamedTemporaryFile(