196
265
.replace(b"\n", b"\\n")
197
266
.replace(b"\0", b"\\x00"))
200
269
def encrypt(self, data, password):
201
270
passphrase = self.password_encode(password)
202
271
with tempfile.NamedTemporaryFile(
203
272
dir=self.tempdir) as passfile:
204
273
passfile.write(passphrase)
206
proc = subprocess.Popen(['gpg', '--symmetric',
275
proc = subprocess.Popen([self.gpg, '--symmetric',
207
276
'--passphrase-file',
209
278
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
214
283
if proc.returncode != 0:
215
284
raise PGPError(err)
216
285
return ciphertext
218
287
def decrypt(self, data, password):
219
288
passphrase = self.password_encode(password)
220
289
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
290
dir=self.tempdir) as passfile:
222
291
passfile.write(passphrase)
224
proc = subprocess.Popen(['gpg', '--decrypt',
293
proc = subprocess.Popen([self.gpg, '--decrypt',
225
294
'--passphrase-file',
227
296
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
232
301
if proc.returncode != 0:
233
302
raise PGPError(err)
234
303
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
237
332
class AvahiError(Exception):
238
333
def __init__(self, value, *args, **kwargs):
239
334
self.value = value
418
524
class AvahiServiceToSyslog(AvahiService):
419
525
def rename(self, *args, **kwargs):
420
526
"""Add the new name to the syslog messages"""
421
ret = AvahiService.rename(self, *args, **kwargs)
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
422
529
syslogger.setFormatter(logging.Formatter(
423
530
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
424
531
.format(self.name)))
428
class Client(object):
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))
429
854
"""A representation of a client host served by this server.
432
857
approved: bool(); 'None' if not yet approved/disapproved
433
858
approval_delay: datetime.timedelta(); Time to wait for approval
434
859
approval_duration: datetime.timedelta(); Duration of one approval
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
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
439
864
checker_command: string; External command which is run to check
440
865
if client lives. %() expansions are done at
441
866
runtime with vars(self) as dict, so that for
442
867
instance %(name)s can be used in the command.
443
checker_initiator_tag: a gobject event source tag, or None
868
checker_initiator_tag: a GLib event source tag, or None
444
869
created: datetime.datetime(); (UTC) object creation
445
870
client_structure: Object describing what attributes a client has
446
871
and is used for storing the client at exit
447
872
current_checker_command: string; current running checker_command
448
disable_initiator_tag: a gobject event source tag, or None
873
disable_initiator_tag: a GLib event source tag, or None
450
875
fingerprint: string (40 or 32 hexadecimal digits); used to
451
uniquely identify the client
876
uniquely identify an OpenPGP client
877
key_id: string (64 hexadecimal digits); used to uniquely identify
878
a client using raw public keys
452
879
host: string; available for use by the checker command
453
880
interval: datetime.timedelta(); How often to start a new checker
454
881
last_approval_request: datetime.datetime(); (UTC) or None
604
1038
logger.info("Disabling client %s", self.name)
605
1039
if getattr(self, "disable_initiator_tag", None) is not None:
606
gobject.source_remove(self.disable_initiator_tag)
1040
GLib.source_remove(self.disable_initiator_tag)
607
1041
self.disable_initiator_tag = None
608
1042
self.expires = None
609
1043
if getattr(self, "checker_initiator_tag", None) is not None:
610
gobject.source_remove(self.checker_initiator_tag)
1044
GLib.source_remove(self.checker_initiator_tag)
611
1045
self.checker_initiator_tag = None
612
1046
self.stop_checker()
613
1047
self.enabled = False
615
1049
self.send_changedstate()
616
# Do not run this again if called by a gobject.timeout_add
1050
# Do not run this again if called by a GLib.timeout_add
619
1053
def __del__(self):
622
1056
def init_checker(self):
623
1057
# Schedule a new checker to be started an 'interval' from now,
624
1058
# and every interval from then on.
625
1059
if self.checker_initiator_tag is not None:
626
gobject.source_remove(self.checker_initiator_tag)
627
self.checker_initiator_tag = gobject.timeout_add(
628
int(self.interval.total_seconds() * 1000),
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
629
1064
self.start_checker)
630
1065
# Schedule a disable() when 'timeout' has passed
631
1066
if self.disable_initiator_tag is not None:
632
gobject.source_remove(self.disable_initiator_tag)
633
self.disable_initiator_tag = gobject.timeout_add(
1067
GLib.source_remove(self.disable_initiator_tag)
1068
self.disable_initiator_tag = GLib.timeout_add(
634
1069
int(self.timeout.total_seconds() * 1000), self.disable)
635
1070
# Also start a new checker *right now*.
636
1071
self.start_checker()
638
def checker_callback(self, pid, condition, command):
1073
def checker_callback(self, source, condition, connection,
639
1075
"""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:
640
1081
self.checker_callback_tag = None
641
1082
self.checker = None
642
if os.WIFEXITED(condition):
643
self.last_checker_status = os.WEXITSTATUS(condition)
1085
self.last_checker_status = returncode
1086
self.last_checker_signal = None
644
1087
if self.last_checker_status == 0:
645
1088
logger.info("Checker for %(name)s succeeded",
716
1152
return True # Try again later
717
1153
self.current_checker_command = command
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
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
761
1183
def stop_checker(self):
762
1184
"""Force the checker process, if any, to stop."""
763
1185
if self.checker_callback_tag:
764
gobject.source_remove(self.checker_callback_tag)
1186
GLib.source_remove(self.checker_callback_tag)
765
1187
self.checker_callback_tag = None
766
1188
if getattr(self, "checker", None) is None:
768
1190
logger.debug("Stopping checker for %(name)s", vars(self))
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
1191
self.checker.terminate()
777
1192
self.checker = None
896
1312
for cls in self.__class__.__mro__
897
1313
for name, athing in
898
1314
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.
900
1387
def _get_dbus_property(self, interface_name, property_name):
901
1388
"""Returns a bound method if one exists which is a D-Bus
902
1389
property with the specified name and interface.
1060
1543
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",
1063
1617
def datetime_to_dbus(dt, variant_level=0):
1064
1618
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1066
return dbus.String("", variant_level = variant_level)
1620
return dbus.String("", variant_level=variant_level)
1067
1621
return dbus.String(dt.isoformat(), variant_level=variant_level)
1819
2405
delay -= time2 - time
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
2408
session.send(client.secret)
2409
except gnutls.Error as error:
2410
logger.warning("gnutls send failed",
1834
2414
logger.info("Sending secret to %s", client.name)
1835
2415
# bump the timeout using extended_timeout
1836
2416
client.bump_timeout(client.extended_timeout)
1837
2417
if self.server.use_dbus:
1838
2418
# Emit D-Bus signal
1839
2419
client.GotSecret()
1842
2422
if approval_required:
1843
2423
client.approvals_pending -= 1
1846
except gnutls.errors.GNUTLSError as error:
2426
except gnutls.Error as error:
1847
2427
logger.warning("GnuTLS bye failed",
1848
2428
exc_info=error)
1851
2431
def peer_certificate(session):
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
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
1859
2448
list_size = ctypes.c_uint(1)
1860
cert_list = (gnutls.library.functions
1861
.gnutls_certificate_get_peers
2449
cert_list = (gnutls.certificate_get_peers
1862
2450
(session._c_object, ctypes.byref(list_size)))
1863
2451
if not bool(cert_list) and list_size.value != 0:
1864
raise gnutls.errors.GNUTLSError("error getting peer"
2452
raise gnutls.Error("error getting peer certificate")
1866
2453
if list_size.value == 0:
1868
2455
cert = cert_list[0]
1869
2456
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()
1872
2494
def fingerprint(openpgp):
1873
2495
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1874
2496
# New GnuTLS "datum" with the OpenPGP public key
1875
datum = gnutls.library.types.gnutls_datum_t(
2497
datum = gnutls.datum_t(
1876
2498
ctypes.cast(ctypes.c_char_p(openpgp),
1877
2499
ctypes.POINTER(ctypes.c_ubyte)),
1878
2500
ctypes.c_uint(len(openpgp)))
1879
2501
# New empty GnuTLS certificate
1880
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1881
gnutls.library.functions.gnutls_openpgp_crt_init(
2502
crt = gnutls.openpgp_crt_t()
2503
gnutls.openpgp_crt_init(ctypes.byref(crt))
1883
2504
# Import the OpenPGP public key into the certificate
1884
gnutls.library.functions.gnutls_openpgp_crt_import(
1885
crt, ctypes.byref(datum),
1886
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
2505
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2506
gnutls.OPENPGP_FMT_RAW)
1887
2507
# Verify the self signature in the key
1888
2508
crtverify = ctypes.c_uint()
1889
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1890
crt, 0, ctypes.byref(crtverify))
2509
gnutls.openpgp_crt_verify_self(crt, 0,
2510
ctypes.byref(crtverify))
1891
2511
if crtverify.value != 0:
1892
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1893
raise gnutls.errors.CertificateSecurityError(
2512
gnutls.openpgp_crt_deinit(crt)
2513
raise gnutls.CertificateSecurityError(code
1895
2515
# New buffer for the fingerprint
1896
2516
buf = ctypes.create_string_buffer(20)
1897
2517
buf_len = ctypes.c_size_t()
1898
2518
# Get the fingerprint from the certificate into the buffer
1899
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1900
crt, ctypes.byref(buf), ctypes.byref(buf_len))
2519
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2520
ctypes.byref(buf_len))
1901
2521
# Deinit the certificate
1902
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2522
gnutls.openpgp_crt_deinit(crt)
1903
2523
# Convert the buffer to a Python bytestring
1904
2524
fpr = ctypes.string_at(buf, buf_len.value)
1905
2525
# Convert the bytestring to hexadecimal notation
1993
2614
# socket_wrapper(), if socketfd was set.
1994
2615
socketserver.TCPServer.__init__(self, server_address,
1995
2616
RequestHandlerClass)
1997
2618
def server_bind(self):
1998
2619
"""This overrides the normal server_bind() function
1999
2620
to bind to an interface if one was specified, and also NOT to
2000
2621
bind to an address or port if they were not specified."""
2622
global SO_BINDTODEVICE
2001
2623
if self.interface is not None:
2002
2624
if SO_BINDTODEVICE is None:
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)
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)
2024
2646
# Only bind(2) the socket if we really need to.
2025
2647
if self.server_address[0] or self.server_address[1]:
2648
if self.server_address[1]:
2649
self.allow_reuse_address = True
2026
2650
if not self.server_address[0]:
2027
2651
if self.address_family == socket.AF_INET6:
2028
any_address = "::" # in6addr_any
2652
any_address = "::" # in6addr_any
2030
any_address = "0.0.0.0" # INADDR_ANY
2654
any_address = "0.0.0.0" # INADDR_ANY
2031
2655
self.server_address = (any_address,
2032
2656
self.server_address[1])
2033
2657
elif not self.server_address[1]:
2067
2691
self.gnutls_priority = gnutls_priority
2068
2692
IPv6_TCPServer.__init__(self, server_address,
2069
2693
RequestHandlerClass,
2070
interface = interface,
2071
use_ipv6 = use_ipv6,
2072
socketfd = socketfd)
2694
interface=interface,
2074
2698
def server_activate(self):
2075
2699
if self.enabled:
2076
2700
return socketserver.TCPServer.server_activate(self)
2078
2702
def enable(self):
2079
2703
self.enabled = True
2081
2705
def add_pipe(self, parent_pipe, proc):
2082
2706
# Call "handle_ipc" for both data and EOF events
2083
gobject.io_add_watch(
2084
parent_pipe.fileno(),
2085
gobject.IO_IN | gobject.IO_HUP,
2708
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2709
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2086
2710
functools.partial(self.handle_ipc,
2087
parent_pipe = parent_pipe,
2711
parent_pipe=parent_pipe,
2090
2714
def handle_ipc(self, source, condition,
2091
2715
parent_pipe=None,
2093
2717
client_object=None):
2094
2718
# error, or the other end of multiprocessing.Pipe has closed
2095
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2719
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2096
2720
# Wait for other process to exit
2100
2724
# Read a request from the child
2101
2725
request = parent_pipe.recv()
2102
2726
command = request[0]
2104
2728
if command == 'init':
2106
address = request[2]
2108
for c in self.clients.itervalues():
2109
if c.fingerprint == fpr:
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:
2113
logger.info("Client not found for fingerprint: %s, ad"
2114
"dress: %s", fpr, address)
2744
logger.info("Client not found for key ID: %s, address"
2745
": %s", key_id or fpr, address)
2115
2746
if self.use_dbus:
2116
2747
# Emit D-Bus signal
2117
mandos_dbus_service.ClientNotFound(fpr,
2748
mandos_dbus_service.ClientNotFound(key_id or fpr,
2119
2750
parent_pipe.send(False)
2122
gobject.io_add_watch(
2123
parent_pipe.fileno(),
2124
gobject.IO_IN | gobject.IO_HUP,
2754
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2755
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2125
2756
functools.partial(self.handle_ipc,
2126
parent_pipe = parent_pipe,
2128
client_object = client))
2757
parent_pipe=parent_pipe,
2759
client_object=client))
2129
2760
parent_pipe.send(True)
2130
2761
# remove the old hook in favor of the new above hook on
2134
2765
funcname = request[1]
2135
2766
args = request[2]
2136
2767
kwargs = request[3]
2138
2769
parent_pipe.send(('data', getattr(client_object,
2139
2770
funcname)(*args,
2142
2773
if command == 'getattr':
2143
2774
attrname = request[1]
2144
if callable(client_object.__getattribute__(attrname)):
2775
if isinstance(client_object.__getattribute__(attrname),
2776
collections.abc.Callable):
2145
2777
parent_pipe.send(('function', ))
2147
2779
parent_pipe.send((
2148
2780
'data', client_object.__getattribute__(attrname)))
2150
2782
if command == 'setattr':
2151
2783
attrname = request[1]
2152
2784
value = request[2]
2153
2785
setattr(client_object, attrname, value)
2158
2790
def rfc3339_duration_to_delta(duration):
2159
2791
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
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)
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)
2177
2811
# Parsing an RFC 3339 duration with regular expressions is not
2178
2812
# possible - there would have to be multiple places for the same
2179
2813
# values, like seconds. The current code, while more esoteric, is
2180
2814
# cleaner without depending on a parsing library. If Python had a
2181
2815
# built-in library for parsing we would use it, but we'd like to
2182
2816
# avoid excessive use of external libraries.
2184
2818
# New type for defining tokens, syntax, and semantics all-in-one
2185
2819
Token = collections.namedtuple("Token", (
2186
2820
"regexp", # To match token; if "value" is not None, must have
2577
3221
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2578
3222
service = AvahiServiceToSyslog(
2579
name = server_settings["servicename"],
2580
servicetype = "_mandos._tcp",
2581
protocol = protocol,
3223
name=server_settings["servicename"],
3224
servicetype="_mandos._tcp",
2583
3227
if server_settings["interface"]:
2584
3228
service.interface = if_nametoindex(
2585
3229
server_settings["interface"].encode("utf-8"))
2587
3231
global multiprocessing_manager
2588
3232
multiprocessing_manager = multiprocessing.Manager()
2590
3234
client_class = Client
2592
client_class = functools.partial(ClientDBus, bus = bus)
3236
client_class = functools.partial(ClientDBus, bus=bus)
2594
3238
client_settings = Client.config_parser(client_config)
2595
3239
old_client_settings = {}
2596
3240
clients_data = {}
2598
3242
# This is used to redirect stdout and stderr for checker processes
2600
wnull = open(os.devnull, "w") # A writable /dev/null
3244
wnull = open(os.devnull, "w") # A writable /dev/null
2601
3245
# Only used if server is running in foreground but not in debug
2603
3247
if debug or not foreground:
2606
3250
# Get client data and settings from last running state.
2607
3251
if server_settings["restore"]:
2609
3253
with open(stored_state_path, "rb") as stored_state:
2610
clients_data, old_client_settings = pickle.load(
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]
2612
3304
os.remove(stored_state_path)
2613
3305
except IOError as e:
2614
3306
if e.errno == errno.ENOENT:
2714
3406
pidfilename, pid)
2716
3408
del pidfilename
2718
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2719
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3410
for termsig in (signal.SIGHUP, signal.SIGTERM):
3411
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3412
lambda: main_loop.quit() and False)
2723
3416
@alternate_dbus_interfaces(
2724
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2725
class MandosDBusService(DBusObjectWithProperties):
3417
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3418
class MandosDBusService(DBusObjectWithObjectManager):
2726
3419
"""A D-Bus proxy object"""
2728
3421
def __init__(self):
2729
3422
dbus.service.Object.__init__(self, bus, "/")
2731
3424
_interface = "se.recompile.Mandos"
2733
@dbus_interface_annotations(_interface)
2736
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2739
3426
@dbus.service.signal(_interface, signature="o")
2740
3427
def ClientAdded(self, objpath):
2744
3431
@dbus.service.signal(_interface, signature="ss")
2745
def ClientNotFound(self, fingerprint, address):
3432
def ClientNotFound(self, key_id, address):
3436
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2749
3438
@dbus.service.signal(_interface, signature="os")
2750
3439
def ClientRemoved(self, objpath, name):
3443
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2754
3445
@dbus.service.method(_interface, out_signature="ao")
2755
3446
def GetAllClients(self):
2757
3448
return dbus.Array(c.dbus_object_path for c in
2758
tcp_server.clients.itervalues())
3449
tcp_server.clients.values())
3451
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2760
3453
@dbus.service.method(_interface,
2761
3454
out_signature="a{oa{sv}}")
2762
3455
def GetAllClientsWithProperties(self):
2764
3457
return dbus.Dictionary(
2765
{ c.dbus_object_path: c.GetAll("")
2766
for c in tcp_server.clients.itervalues() },
3458
{c.dbus_object_path: c.GetAll(
3459
"se.recompile.Mandos.Client")
3460
for c in tcp_server.clients.values()},
2767
3461
signature="oa{sv}")
2769
3463
@dbus.service.method(_interface, in_signature="o")
2770
3464
def RemoveClient(self, object_path):
2772
for c in tcp_server.clients.itervalues():
3466
for c in tcp_server.clients.values():
2773
3467
if c.dbus_object_path == object_path:
2774
3468
del tcp_server.clients[c.name]
2775
3469
c.remove_from_connection()
2776
# Don't signal anything except ClientRemoved
3470
# Don't signal the disabling
2777
3471
c.disable(quiet=True)
2779
self.ClientRemoved(object_path, c.name)
3472
# Emit D-Bus signal for removal
3473
self.client_removed_signal(c)
2781
3475
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,
2785
3515
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
2788
3523
"Cleanup function; run on exit"
2790
3525
service.cleanup()
2792
multiprocessing.active_children()
3527
mp.active_children()
2794
3529
if not (tcp_server.clients or client_settings):
2797
3532
# Store client before exiting. Secrets are encrypted with key
2798
3533
# based on what config file has. If config file is
2799
3534
# removed/edited, old secret will thus be unrecovable.
2801
3536
with PGPEngine() as pgp:
2802
for client in tcp_server.clients.itervalues():
3537
for client in tcp_server.clients.values():
2803
3538
key = client_settings[client.name]["secret"]
2804
3539
client.encrypted_secret = pgp.encrypt(client.secret,
2806
3541
client_dict = {}
2808
3543
# A list of attributes that can not be pickled
2810
exclude = { "bus", "changedstate", "secret",
2811
"checker", "server_settings" }
3545
exclude = {"bus", "changedstate", "secret",
3546
"checker", "server_settings"}
2812
3547
for name, typ in inspect.getmembers(dbus.service
2814
3549
exclude.add(name)
2816
3551
client_dict["encrypted_secret"] = (client
2817
3552
.encrypted_secret)
2818
3553
for attr in client.client_structure:
2819
3554
if attr not in exclude:
2820
3555
client_dict[attr] = getattr(client, attr)
2822
3557
clients[client.name] = client_dict
2823
3558
del client_settings[client.name]["secret"]
2826
3561
with tempfile.NamedTemporaryFile(