101
81
except ImportError:
102
82
SO_BINDTODEVICE = None
104
if sys.version_info.major == 2:
108
stored_state_file = "clients.pickle"
110
logger = logging.getLogger()
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
116
except (OSError, AttributeError):
118
def if_nametoindex(interface):
119
"Get an interface index the hard way, i.e. using fcntl()"
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
with contextlib.closing(socket.socket()) as s:
122
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
125
return interface_index
128
def initlogger(debug, level=logging.WARNING):
129
"""init logger and add loglevel"""
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
syslogger.setFormatter(logging.Formatter
136
('Mandos [%(process)d]: %(levelname)s:'
138
logger.addHandler(syslogger)
141
console = logging.StreamHandler()
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
146
logger.addHandler(console)
147
logger.setLevel(level)
150
class PGPError(Exception):
151
"""Exception if encryption/decryption fails"""
155
class PGPEngine(object):
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
169
def __exit__(self, exc_type, exc_value, traceback):
177
if self.tempdir is not None:
178
# Delete contents of tempdir
179
for root, dirs, files in os.walk(self.tempdir,
181
for filename in files:
182
os.remove(os.path.join(root, filename))
184
os.rmdir(os.path.join(root, dirname))
186
os.rmdir(self.tempdir)
189
def password_encode(self, password):
190
# Passphrase can not be empty and can not contain newlines or
191
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
200
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
206
proc = subprocess.Popen(['gpg', '--symmetric',
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
218
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
224
proc = subprocess.Popen(['gpg', '--decrypt',
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
234
return decrypted_plaintext
87
#logger = logging.getLogger('mandos')
88
logger = logging.Logger('mandos')
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
95
logger.addHandler(syslogger)
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
101
logger.addHandler(console)
237
103
class AvahiError(Exception):
238
104
def __init__(self, value, *args, **kwargs):
239
105
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
244
110
class AvahiServiceError(AvahiError):
248
113
class AvahiGroupError(AvahiError):
295
152
self.server = None
297
154
self.entry_group_state_changed_match = None
299
def rename(self, remove=True):
300
156
"""Derived from the Avahi example code"""
301
157
if self.rename_count >= self.max_renames:
302
158
logger.critical("No suitable Zeroconf service name found"
303
159
" after %i retries, exiting.",
304
160
self.rename_count)
305
161
raise AvahiServiceError("Too many renames")
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
309
163
logger.info("Changing Zeroconf service name to %r ...",
165
syslogger.setFormatter(logging.Formatter
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
315
172
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
321
logger.critical("D-Bus Exception", exc_info=error)
173
logger.critical("DBusException: %s", error)
176
self.rename_count += 1
325
177
def remove(self):
326
178
"""Derived from the Avahi example code"""
179
if self.group is not None:
182
except (dbus.exceptions.UnknownMethodException,
183
dbus.exceptions.DBusException) as e:
327
186
if self.entry_group_state_changed_match is not None:
328
187
self.entry_group_state_changed_match.remove()
329
188
self.entry_group_state_changed_match = None
330
if self.group is not None:
334
190
"""Derived from the Avahi example code"""
336
if self.group is None:
337
self.group = dbus.Interface(
338
self.bus.get_object(avahi.DBUS_NAME,
339
self.server.EntryGroupNew()),
340
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
self.group = dbus.Interface(
193
self.bus.get_object(avahi.DBUS_NAME,
194
self.server.EntryGroupNew(),
195
follow_name_owner_changes=True),
196
avahi.DBUS_INTERFACE_ENTRY_GROUP)
341
197
self.entry_group_state_changed_match = (
342
198
self.group.connect_to_signal(
343
'StateChanged', self.entry_group_state_changed))
199
'StateChanged', self .entry_group_state_changed))
344
200
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
345
201
self.name, self.type)
346
202
self.group.AddService(
473
283
interval: datetime.timedelta(); How often to start a new checker
474
284
last_approval_request: datetime.datetime(); (UTC) or None
475
285
last_checked_ok: datetime.datetime(); (UTC) or None
476
last_checker_status: integer between 0 and 255 reflecting exit
477
status of last checker. -1 reflects crashed
478
checker, -2 means no checker completed yet.
479
last_checker_signal: The signal which killed the last checker, if
480
last_checker_status is -1
481
last_enabled: datetime.datetime(); (UTC) or None
286
last_enabled: datetime.datetime(); (UTC)
482
287
name: string; from the config file, used in log messages and
483
288
D-Bus identifiers
484
289
secret: bytestring; sent verbatim (over TLS) to client
485
290
timeout: datetime.timedelta(); How long from last_checked_ok
486
291
until this client is disabled
487
extended_timeout: extra long timeout when secret has been sent
488
292
runtime_expansions: Allowed attributes for runtime expansion.
489
expires: datetime.datetime(); time (UTC) when a client will be
491
server_settings: The server_settings dict from main()
494
295
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
296
"created", "enabled", "fingerprint",
297
"host", "interval", "last_checked_ok",
498
298
"last_enabled", "name", "timeout")
501
"extended_timeout": "PT15M",
503
"checker": "fping -q -- %%(host)s",
505
"approval_delay": "PT0S",
506
"approval_duration": "PT1S",
507
"approved_by_default": "True",
512
def config_parser(config):
513
"""Construct a new dict of client settings of this form:
514
{ client_name: {setting_name: value, ...}, ...}
515
with exceptions for any special settings as defined above.
516
NOTE: Must be a pure function. Must return the same result
517
value given the same arguments.
520
for client_name in config.sections():
521
section = dict(config.items(client_name))
522
client = settings[client_name] = {}
524
client["host"] = section["host"]
525
# Reformat values from string types to Python types
526
client["approved_by_default"] = config.getboolean(
527
client_name, "approved_by_default")
528
client["enabled"] = config.getboolean(client_name,
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
client["fingerprint"] = (section["fingerprint"].upper()
536
if "secret" in section:
537
client["secret"] = section["secret"].decode("base64")
538
elif "secfile" in section:
539
with open(os.path.expanduser(os.path.expandvars
540
(section["secfile"])),
542
client["secret"] = secfile.read()
544
raise TypeError("No secret or secfile for section {}"
546
client["timeout"] = string_to_delta(section["timeout"])
547
client["extended_timeout"] = string_to_delta(
548
section["extended_timeout"])
549
client["interval"] = string_to_delta(section["interval"])
550
client["approval_delay"] = string_to_delta(
551
section["approval_delay"])
552
client["approval_duration"] = string_to_delta(
553
section["approval_duration"])
554
client["checker_command"] = section["checker"]
555
client["last_approval_request"] = None
556
client["last_checked_ok"] = None
557
client["last_checker_status"] = -2
561
def __init__(self, settings, name = None, server_settings=None):
301
def _timedelta_to_milliseconds(td):
302
"Convert a datetime.timedelta() to milliseconds"
303
return ((td.days * 24 * 60 * 60 * 1000)
304
+ (td.seconds * 1000)
305
+ (td.microseconds // 1000))
307
def timeout_milliseconds(self):
308
"Return the 'timeout' attribute in milliseconds"
309
return self._timedelta_to_milliseconds(self.timeout)
311
def interval_milliseconds(self):
312
"Return the 'interval' attribute in milliseconds"
313
return self._timedelta_to_milliseconds(self.interval)
315
def approval_delay_milliseconds(self):
316
return self._timedelta_to_milliseconds(self.approval_delay)
318
def __init__(self, name = None, disable_hook=None, config=None):
319
"""Note: the 'checker' key in 'config' sets the
320
'checker_command' attribute and *not* the 'checker'
563
if server_settings is None:
565
self.server_settings = server_settings
566
# adding all client settings
567
for setting, value in settings.items():
568
setattr(self, setting, value)
571
if not hasattr(self, "last_enabled"):
572
self.last_enabled = datetime.datetime.utcnow()
573
if not hasattr(self, "expires"):
574
self.expires = (datetime.datetime.utcnow()
577
self.last_enabled = None
580
325
logger.debug("Creating client %r", self.name)
326
# Uppercase and remove spaces from fingerprint for later
327
# comparison purposes with return value from the fingerprint()
329
self.fingerprint = (config["fingerprint"].upper()
581
331
logger.debug(" Fingerprint: %s", self.fingerprint)
582
self.created = settings.get("created",
583
datetime.datetime.utcnow())
585
# attributes specific for this server instance
332
if "secret" in config:
333
self.secret = config["secret"].decode("base64")
334
elif "secfile" in config:
335
with open(os.path.expanduser(os.path.expandvars
336
(config["secfile"])),
338
self.secret = secfile.read()
340
raise TypeError("No secret or secfile for client %s"
342
self.host = config.get("host", "")
343
self.created = datetime.datetime.utcnow()
345
self.last_approval_request = None
346
self.last_enabled = None
347
self.last_checked_ok = None
348
self.timeout = string_to_delta(config["timeout"])
349
self.interval = string_to_delta(config["interval"])
350
self.disable_hook = disable_hook
586
351
self.checker = None
587
352
self.checker_initiator_tag = None
588
353
self.disable_initiator_tag = None
589
354
self.checker_callback_tag = None
355
self.checker_command = config["checker"]
590
356
self.current_checker_command = None
357
self.last_connect = None
358
self._approved = None
359
self.approved_by_default = config.get("approved_by_default",
592
361
self.approvals_pending = 0
593
self.changedstate = multiprocessing_manager.Condition(
594
multiprocessing_manager.Lock())
595
self.client_structure = [attr
596
for attr in self.__dict__.iterkeys()
597
if not attr.startswith("_")]
598
self.client_structure.append("client_structure")
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
602
if not name.startswith("_"):
603
self.client_structure.append(name)
362
self.approval_delay = string_to_delta(
363
config["approval_delay"])
364
self.approval_duration = string_to_delta(
365
config["approval_duration"])
366
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
605
# Send notice to process children that client state has changed
606
368
def send_changedstate(self):
607
with self.changedstate:
608
self.changedstate.notify_all()
369
self.changedstate.acquire()
370
self.changedstate.notify_all()
371
self.changedstate.release()
610
373
def enable(self):
611
374
"""Start this client's checker and timeout hooks"""
612
375
if getattr(self, "enabled", False):
613
376
# Already enabled
615
self.expires = datetime.datetime.utcnow() + self.timeout
378
self.send_changedstate()
617
379
self.last_enabled = datetime.datetime.utcnow()
619
self.send_changedstate()
380
# Schedule a new checker to be started an 'interval' from now,
381
# and every interval from then on.
382
self.checker_initiator_tag = (gobject.timeout_add
383
(self.interval_milliseconds(),
385
# Schedule a disable() when 'timeout' has passed
386
self.disable_initiator_tag = (gobject.timeout_add
387
(self.timeout_milliseconds(),
390
# Also start a new checker *right now*.
621
393
def disable(self, quiet=True):
622
394
"""Disable this client."""
623
395
if not getattr(self, "enabled", False):
398
self.send_changedstate()
626
400
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
401
if getattr(self, "disable_initiator_tag", False):
628
402
gobject.source_remove(self.disable_initiator_tag)
629
403
self.disable_initiator_tag = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
404
if getattr(self, "checker_initiator_tag", False):
632
405
gobject.source_remove(self.checker_initiator_tag)
633
406
self.checker_initiator_tag = None
634
407
self.stop_checker()
408
if self.disable_hook:
409
self.disable_hook(self)
635
410
self.enabled = False
637
self.send_changedstate()
638
411
# Do not run this again if called by a gobject.timeout_add
641
414
def __del__(self):
415
self.disable_hook = None
644
def init_checker(self):
645
# Schedule a new checker to be started an 'interval' from now,
646
# and every interval from then on.
647
if self.checker_initiator_tag is not None:
648
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
652
# Schedule a disable() when 'timeout' has passed
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
657
# Also start a new checker *right now*.
660
def checker_callback(self, source, condition, connection,
418
def checker_callback(self, pid, condition, command):
662
419
"""The checker has completed, so take appropriate actions."""
663
420
self.checker_callback_tag = None
664
421
self.checker = None
665
# Read return code from connection (see call_pipe)
666
returncode = connection.recv()
670
self.last_checker_status = returncode
671
self.last_checker_signal = None
672
if self.last_checker_status == 0:
422
if os.WIFEXITED(condition):
423
exitstatus = os.WEXITSTATUS(condition)
673
425
logger.info("Checker for %(name)s succeeded",
675
427
self.checked_ok()
677
logger.info("Checker for %(name)s failed", vars(self))
429
logger.info("Checker for %(name)s failed",
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
432
logger.warning("Checker for %(name)s crashed?",
685
435
def checked_ok(self):
686
"""Assert that the client has been seen, alive and well."""
436
"""Bump up the timeout for this client.
438
This should only be called when the client has been seen,
687
441
self.last_checked_ok = datetime.datetime.utcnow()
688
self.last_checker_status = 0
689
self.last_checker_signal = None
692
def bump_timeout(self, timeout=None):
693
"""Bump up the timeout for this client."""
695
timeout = self.timeout
696
if self.disable_initiator_tag is not None:
697
gobject.source_remove(self.disable_initiator_tag)
698
self.disable_initiator_tag = None
699
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
702
self.expires = datetime.datetime.utcnow() + timeout
442
gobject.source_remove(self.disable_initiator_tag)
443
self.disable_initiator_tag = (gobject.timeout_add
444
(self.timeout_milliseconds(),
704
447
def need_approval(self):
705
448
self.last_approval_request = datetime.datetime.utcnow()
710
453
If a checker already exists, leave it running and do
712
455
# The reason for not killing a running checker is that if we
713
# did that, and if a checker (for some reason) started running
714
# slowly and taking more than 'interval' time, then the client
715
# would inevitably timeout, since no checker would get a
716
# chance to run to completion. If we instead leave running
456
# did that, then if a checker (for some reason) started
457
# running slowly and taking more than 'interval' time, the
458
# client would inevitably timeout, since no checker would get
459
# a chance to run to completion. If we instead leave running
717
460
# checkers alone, the checker would have to take more time
718
461
# than 'timeout' for the client to be disabled, which is as it
721
if self.checker is not None and not self.checker.is_alive():
722
logger.warning("Checker was not alive; joining")
464
# If a checker exists, make sure it is not a zombie
466
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
467
except (AttributeError, OSError) as error:
468
if (isinstance(error, OSError)
469
and error.errno != errno.ECHILD):
473
logger.warning("Checker was a zombie")
474
gobject.source_remove(self.checker_callback_tag)
475
self.checker_callback(pid, status,
476
self.current_checker_command)
725
477
# Start a new checker if needed
726
478
if self.checker is None:
727
# Escape attributes for the shell
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
732
command = self.checker_command % escaped_attrs
733
except TypeError as error:
734
logger.error('Could not format string "%s"',
735
self.checker_command,
737
return True # Try again later
480
# In case checker_command has exactly one % operator
481
command = self.checker_command % self.host
483
# Escape attributes for the shell
484
escaped_attrs = dict(
486
re.escape(unicode(str(getattr(self, attr, "")),
490
self.runtime_expansions)
493
command = self.checker_command % escaped_attrs
494
except TypeError as error:
495
logger.error('Could not format string "%s":'
496
' %s', self.checker_command, error)
497
return True # Try again later
738
498
self.current_checker_command = command
739
logger.info("Starting checker %r for %s", command,
741
# We don't need to redirect stdout and stderr, since
742
# in normal mode, that is already done by daemon(),
743
# and in debug mode we don't want to. (Stdin is
744
# always replaced by /dev/null.)
745
# The exception is when not debugging but nevertheless
746
# running in the foreground; use the previously
748
popen_args = { "close_fds": True,
751
if (not self.server_settings["debug"]
752
and self.server_settings["foreground"]):
753
popen_args.update({"stdout": wnull,
755
pipe = multiprocessing.Pipe(duplex = False)
756
self.checker = multiprocessing.Process(
758
args = (pipe[1], subprocess.call, command),
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
763
self.checker_callback, pipe[0], command)
500
logger.info("Starting checker %r for %s",
502
# We don't need to redirect stdout and stderr, since
503
# in normal mode, that is already done by daemon(),
504
# and in debug mode we don't want to. (Stdin is
505
# always replaced by /dev/null.)
506
self.checker = subprocess.Popen(command,
509
self.checker_callback_tag = (gobject.child_watch_add
511
self.checker_callback,
513
# The checker may have completed before the gobject
514
# watch was added. Check for this.
515
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
517
gobject.source_remove(self.checker_callback_tag)
518
self.checker_callback(pid, status, command)
519
except OSError as error:
520
logger.error("Failed to start subprocess: %s",
764
522
# Re-run this periodically if run by gobject.timeout_add
872
592
class DBusObjectWithProperties(dbus.service.Object):
873
593
"""A D-Bus object with properties.
875
595
Classes inheriting from this can use the dbus_service_property
876
596
decorator to expose methods as D-Bus properties. It exposes the
877
597
standard Get(), Set(), and GetAll() methods on the D-Bus.
881
def _is_dbus_thing(thing):
882
"""Returns a function testing if an attribute is a D-Bus thing
884
If called like _is_dbus_thing("method") it returns a function
885
suitable for use as predicate to inspect.getmembers().
887
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
601
def _is_dbus_property(obj):
602
return getattr(obj, "_dbus_is_property", False)
890
def _get_all_dbus_things(self, thing):
604
def _get_all_dbus_properties(self):
891
605
"""Returns a generator of (name, attribute) pairs
893
return ((getattr(athing.__get__(self), "_dbus_name", name),
894
athing.__get__(self))
895
for cls in self.__class__.__mro__
897
inspect.getmembers(cls, self._is_dbus_thing(thing)))
607
return ((prop._dbus_name, prop)
609
inspect.getmembers(self, self._is_dbus_property))
899
611
def _get_dbus_property(self, interface_name, property_name):
900
612
"""Returns a bound method if one exists which is a D-Bus
901
613
property with the specified name and interface.
903
for cls in self.__class__.__mro__:
904
for name, value in inspect.getmembers(
905
cls, self._is_dbus_thing("property")):
906
if (value._dbus_name == property_name
907
and value._dbus_interface == interface_name):
908
return value.__get__(self)
615
for name in (property_name,
616
property_name + "_dbus_property"):
617
prop = getattr(self, name, None)
619
or not self._is_dbus_property(prop)
620
or prop._dbus_name != property_name
621
or (interface_name and prop._dbus_interface
622
and interface_name != prop._dbus_interface)):
910
625
# No such property
911
raise DBusPropertyNotFound("{}:{}.{}".format(
912
self.dbus_object_path, interface_name, property_name))
626
raise DBusPropertyNotFound(self.dbus_object_path + ":"
627
+ interface_name + "."
914
@dbus.service.method(dbus.PROPERTIES_IFACE,
630
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
916
631
out_signature="v")
917
632
def Get(self, interface_name, property_name):
918
633
"""Standard D-Bus property Get() method, see D-Bus standard.
965
677
if not hasattr(value, "variant_level"):
966
properties[name] = value
968
properties[name] = type(value)(
969
value, variant_level = value.variant_level + 1)
970
return dbus.Dictionary(properties, signature="sv")
972
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
973
def PropertiesChanged(self, interface_name, changed_properties,
974
invalidated_properties):
975
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
680
all[name] = type(value)(value, variant_level=
681
value.variant_level+1)
682
return dbus.Dictionary(all, signature="sv")
980
684
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
981
685
out_signature="s",
982
686
path_keyword='object_path',
983
687
connection_keyword='connection')
984
688
def Introspect(self, object_path, connection):
985
"""Overloading of standard D-Bus method.
987
Inserts property tags and interface annotation tags.
689
"""Standard D-Bus method, overloaded to insert property tags.
989
691
xmlstring = dbus.service.Object.Introspect(self, object_path,
992
694
document = xml.dom.minidom.parseString(xmlstring)
994
695
def make_tag(document, name, prop):
995
696
e = document.createElement("property")
996
697
e.setAttribute("name", name)
997
698
e.setAttribute("type", prop._dbus_signature)
998
699
e.setAttribute("access", prop._dbus_access)
1001
701
for if_tag in document.getElementsByTagName("interface"):
1003
702
for tag in (make_tag(document, name, prop)
1005
in self._get_all_dbus_things("property")
704
in self._get_all_dbus_properties()
1006
705
if prop._dbus_interface
1007
706
== if_tag.getAttribute("name")):
1008
707
if_tag.appendChild(tag)
1009
# Add annotation tags
1010
for typ in ("method", "signal", "property"):
1011
for tag in if_tag.getElementsByTagName(typ):
1013
for name, prop in (self.
1014
_get_all_dbus_things(typ)):
1015
if (name == tag.getAttribute("name")
1016
and prop._dbus_interface
1017
== if_tag.getAttribute("name")):
1018
annots.update(getattr(
1019
prop, "_dbus_annotations", {}))
1020
for name, value in annots.items():
1021
ann_tag = document.createElement(
1023
ann_tag.setAttribute("name", name)
1024
ann_tag.setAttribute("value", value)
1025
tag.appendChild(ann_tag)
1026
# Add interface annotation tags
1027
for annotation, value in dict(
1028
itertools.chain.from_iterable(
1029
annotations().items()
1030
for name, annotations
1031
in self._get_all_dbus_things("interface")
1032
if name == if_tag.getAttribute("name")
1034
ann_tag = document.createElement("annotation")
1035
ann_tag.setAttribute("name", annotation)
1036
ann_tag.setAttribute("value", value)
1037
if_tag.appendChild(ann_tag)
1038
708
# Add the names to the return values for the
1039
709
# "org.freedesktop.DBus.Properties" methods
1040
710
if (if_tag.getAttribute("name")
1055
725
except (AttributeError, xml.dom.DOMException,
1056
726
xml.parsers.expat.ExpatError) as error:
1057
727
logger.error("Failed to override Introspection method",
1059
729
return xmlstring
1062
def datetime_to_dbus(dt, variant_level=0):
1063
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1065
return dbus.String("", variant_level = variant_level)
1066
return dbus.String(dt.isoformat(), variant_level=variant_level)
1069
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1070
"""A class decorator; applied to a subclass of
1071
dbus.service.Object, it will add alternate D-Bus attributes with
1072
interface names according to the "alt_interface_names" mapping.
1075
@alternate_dbus_interfaces({"org.example.Interface":
1076
"net.example.AlternateInterface"})
1077
class SampleDBusObject(dbus.service.Object):
1078
@dbus.service.method("org.example.Interface")
1079
def SampleDBusMethod():
1082
The above "SampleDBusMethod" on "SampleDBusObject" will be
1083
reachable via two interfaces: "org.example.Interface" and
1084
"net.example.AlternateInterface", the latter of which will have
1085
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1086
"true", unless "deprecate" is passed with a False value.
1088
This works for methods and signals, and also for D-Bus properties
1089
(from DBusObjectWithProperties) and interfaces (from the
1090
dbus_interface_annotations decorator).
1094
for orig_interface_name, alt_interface_name in (
1095
alt_interface_names.items()):
1097
interface_names = set()
1098
# Go though all attributes of the class
1099
for attrname, attribute in inspect.getmembers(cls):
1100
# Ignore non-D-Bus attributes, and D-Bus attributes
1101
# with the wrong interface name
1102
if (not hasattr(attribute, "_dbus_interface")
1103
or not attribute._dbus_interface.startswith(
1104
orig_interface_name)):
1106
# Create an alternate D-Bus interface name based on
1108
alt_interface = attribute._dbus_interface.replace(
1109
orig_interface_name, alt_interface_name)
1110
interface_names.add(alt_interface)
1111
# Is this a D-Bus signal?
1112
if getattr(attribute, "_dbus_is_signal", False):
1113
if sys.version_info.major == 2:
1114
# Extract the original non-method undecorated
1115
# function by black magic
1116
nonmethod_func = (dict(
1117
zip(attribute.func_code.co_freevars,
1118
attribute.__closure__))
1119
["func"].cell_contents)
1121
nonmethod_func = attribute
1122
# Create a new, but exactly alike, function
1123
# object, and decorate it to be a new D-Bus signal
1124
# with the alternate D-Bus interface name
1125
if sys.version_info.major == 2:
1126
new_function = types.FunctionType(
1127
nonmethod_func.func_code,
1128
nonmethod_func.func_globals,
1129
nonmethod_func.func_name,
1130
nonmethod_func.func_defaults,
1131
nonmethod_func.func_closure)
1133
new_function = types.FunctionType(
1134
nonmethod_func.__code__,
1135
nonmethod_func.__globals__,
1136
nonmethod_func.__name__,
1137
nonmethod_func.__defaults__,
1138
nonmethod_func.__closure__)
1139
new_function = (dbus.service.signal(
1141
attribute._dbus_signature)(new_function))
1142
# Copy annotations, if any
1144
new_function._dbus_annotations = dict(
1145
attribute._dbus_annotations)
1146
except AttributeError:
1148
# Define a creator of a function to call both the
1149
# original and alternate functions, so both the
1150
# original and alternate signals gets sent when
1151
# the function is called
1152
def fixscope(func1, func2):
1153
"""This function is a scope container to pass
1154
func1 and func2 to the "call_both" function
1155
outside of its arguments"""
1157
def call_both(*args, **kwargs):
1158
"""This function will emit two D-Bus
1159
signals by calling func1 and func2"""
1160
func1(*args, **kwargs)
1161
func2(*args, **kwargs)
1164
# Create the "call_both" function and add it to
1166
attr[attrname] = fixscope(attribute, new_function)
1167
# Is this a D-Bus method?
1168
elif getattr(attribute, "_dbus_is_method", False):
1169
# Create a new, but exactly alike, function
1170
# object. Decorate it to be a new D-Bus method
1171
# with the alternate D-Bus interface name. Add it
1174
dbus.service.method(
1176
attribute._dbus_in_signature,
1177
attribute._dbus_out_signature)
1178
(types.FunctionType(attribute.func_code,
1179
attribute.func_globals,
1180
attribute.func_name,
1181
attribute.func_defaults,
1182
attribute.func_closure)))
1183
# Copy annotations, if any
1185
attr[attrname]._dbus_annotations = dict(
1186
attribute._dbus_annotations)
1187
except AttributeError:
1189
# Is this a D-Bus property?
1190
elif getattr(attribute, "_dbus_is_property", False):
1191
# Create a new, but exactly alike, function
1192
# object, and decorate it to be a new D-Bus
1193
# property with the alternate D-Bus interface
1194
# name. Add it to the class.
1195
attr[attrname] = (dbus_service_property(
1196
alt_interface, attribute._dbus_signature,
1197
attribute._dbus_access,
1198
attribute._dbus_get_args_options
1200
(types.FunctionType(
1201
attribute.func_code,
1202
attribute.func_globals,
1203
attribute.func_name,
1204
attribute.func_defaults,
1205
attribute.func_closure)))
1206
# Copy annotations, if any
1208
attr[attrname]._dbus_annotations = dict(
1209
attribute._dbus_annotations)
1210
except AttributeError:
1212
# Is this a D-Bus interface?
1213
elif getattr(attribute, "_dbus_is_interface", False):
1214
# Create a new, but exactly alike, function
1215
# object. Decorate it to be a new D-Bus interface
1216
# with the alternate D-Bus interface name. Add it
1219
dbus_interface_annotations(alt_interface)
1220
(types.FunctionType(attribute.func_code,
1221
attribute.func_globals,
1222
attribute.func_name,
1223
attribute.func_defaults,
1224
attribute.func_closure)))
1226
# Deprecate all alternate interfaces
1227
iname="_AlternateDBusNames_interface_annotation{}"
1228
for interface_name in interface_names:
1230
@dbus_interface_annotations(interface_name)
1232
return { "org.freedesktop.DBus.Deprecated":
1234
# Find an unused name
1235
for aname in (iname.format(i)
1236
for i in itertools.count()):
1237
if aname not in attr:
1241
# Replace the class with a new subclass of it with
1242
# methods, signals, etc. as created above.
1243
cls = type(b"{}Alternate".format(cls.__name__),
1250
@alternate_dbus_interfaces({"se.recompile.Mandos":
1251
"se.bsnet.fukt.Mandos"})
1252
732
class ClientDBus(Client, DBusObjectWithProperties):
1253
733
"""A Client class using D-Bus
1260
740
runtime_expansions = (Client.runtime_expansions
1261
+ ("dbus_object_path", ))
1263
_interface = "se.recompile.Mandos.Client"
741
+ ("dbus_object_path",))
1265
743
# dbus.service.Object doesn't use super(), so we can't either.
1267
745
def __init__(self, bus = None, *args, **kwargs):
746
self._approvals_pending = 0
1269
748
Client.__init__(self, *args, **kwargs)
1270
749
# Only now, when this client is initialized, can it show up on
1272
client_object_name = str(self.name).translate(
751
client_object_name = unicode(self.name).translate(
1273
752
{ord("."): ord("_"),
1274
753
ord("-"): ord("_")})
1275
self.dbus_object_path = dbus.ObjectPath(
1276
"/clients/" + client_object_name)
754
self.dbus_object_path = (dbus.ObjectPath
755
("/clients/" + client_object_name))
1277
756
DBusObjectWithProperties.__init__(self, self.bus,
1278
757
self.dbus_object_path)
1280
def notifychangeproperty(transform_func, dbus_name,
1281
type_func=lambda x: x,
1283
invalidate_only=False,
1284
_interface=_interface):
1285
""" Modify a variable so that it's a property which announces
1286
its changes to DBus.
1288
transform_fun: Function that takes a value and a variant_level
1289
and transforms it to a D-Bus type.
1290
dbus_name: D-Bus name of the variable
1291
type_func: Function that transform the value before sending it
1292
to the D-Bus. Default: no transform
1293
variant_level: D-Bus variant level. Default: 1
1295
attrname = "_{}".format(dbus_name)
1297
def setter(self, value):
1298
if hasattr(self, "dbus_object_path"):
1299
if (not hasattr(self, attrname) or
1300
type_func(getattr(self, attrname, None))
1301
!= type_func(value)):
1303
self.PropertiesChanged(
1304
_interface, dbus.Dictionary(),
1305
dbus.Array((dbus_name, )))
1307
dbus_value = transform_func(
1309
variant_level = variant_level)
1310
self.PropertyChanged(dbus.String(dbus_name),
1312
self.PropertiesChanged(
1314
dbus.Dictionary({ dbus.String(dbus_name):
1317
setattr(self, attrname, value)
1319
return property(lambda self: getattr(self, attrname), setter)
1321
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1322
approvals_pending = notifychangeproperty(dbus.Boolean,
1325
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1326
last_enabled = notifychangeproperty(datetime_to_dbus,
1328
checker = notifychangeproperty(
1329
dbus.Boolean, "CheckerRunning",
1330
type_func = lambda checker: checker is not None)
1331
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1333
last_checker_status = notifychangeproperty(dbus.Int16,
1334
"LastCheckerStatus")
1335
last_approval_request = notifychangeproperty(
1336
datetime_to_dbus, "LastApprovalRequest")
1337
approved_by_default = notifychangeproperty(dbus.Boolean,
1338
"ApprovedByDefault")
1339
approval_delay = notifychangeproperty(
1340
dbus.UInt64, "ApprovalDelay",
1341
type_func = lambda td: td.total_seconds() * 1000)
1342
approval_duration = notifychangeproperty(
1343
dbus.UInt64, "ApprovalDuration",
1344
type_func = lambda td: td.total_seconds() * 1000)
1345
host = notifychangeproperty(dbus.String, "Host")
1346
timeout = notifychangeproperty(
1347
dbus.UInt64, "Timeout",
1348
type_func = lambda td: td.total_seconds() * 1000)
1349
extended_timeout = notifychangeproperty(
1350
dbus.UInt64, "ExtendedTimeout",
1351
type_func = lambda td: td.total_seconds() * 1000)
1352
interval = notifychangeproperty(
1353
dbus.UInt64, "Interval",
1354
type_func = lambda td: td.total_seconds() * 1000)
1355
checker_command = notifychangeproperty(dbus.String, "Checker")
1356
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1357
invalidate_only=True)
1359
del notifychangeproperty
759
def _get_approvals_pending(self):
760
return self._approvals_pending
761
def _set_approvals_pending(self, value):
762
old_value = self._approvals_pending
763
self._approvals_pending = value
765
if (hasattr(self, "dbus_object_path")
766
and bval is not bool(old_value)):
767
dbus_bool = dbus.Boolean(bval, variant_level=1)
768
self.PropertyChanged(dbus.String("ApprovalPending"),
771
approvals_pending = property(_get_approvals_pending,
772
_set_approvals_pending)
773
del _get_approvals_pending, _set_approvals_pending
776
def _datetime_to_dbus(dt, variant_level=0):
777
"""Convert a UTC datetime.datetime() to a D-Bus type."""
778
return dbus.String(dt.isoformat(),
779
variant_level=variant_level)
782
oldstate = getattr(self, "enabled", False)
783
r = Client.enable(self)
784
if oldstate != self.enabled:
786
self.PropertyChanged(dbus.String("Enabled"),
787
dbus.Boolean(True, variant_level=1))
788
self.PropertyChanged(
789
dbus.String("LastEnabled"),
790
self._datetime_to_dbus(self.last_enabled,
794
def disable(self, quiet = False):
795
oldstate = getattr(self, "enabled", False)
796
r = Client.disable(self, quiet=quiet)
797
if not quiet and oldstate != self.enabled:
799
self.PropertyChanged(dbus.String("Enabled"),
800
dbus.Boolean(False, variant_level=1))
1361
803
def __del__(self, *args, **kwargs):
1367
809
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1368
810
Client.__del__(self, *args, **kwargs)
1370
def checker_callback(self, source, condition,
1371
connection, command, *args, **kwargs):
1372
ret = Client.checker_callback(self, source, condition,
1373
connection, command, *args,
1375
exitstatus = self.last_checker_status
812
def checker_callback(self, pid, condition, command,
814
self.checker_callback_tag = None
817
self.PropertyChanged(dbus.String("CheckerRunning"),
818
dbus.Boolean(False, variant_level=1))
819
if os.WIFEXITED(condition):
820
exitstatus = os.WEXITSTATUS(condition)
1377
821
# Emit D-Bus signal
1378
822
self.CheckerCompleted(dbus.Int16(exitstatus),
823
dbus.Int64(condition),
1380
824
dbus.String(command))
1382
826
# Emit D-Bus signal
1383
827
self.CheckerCompleted(dbus.Int16(-1),
1385
self.last_checker_signal),
828
dbus.Int64(condition),
1386
829
dbus.String(command))
831
return Client.checker_callback(self, pid, condition, command,
834
def checked_ok(self, *args, **kwargs):
835
Client.checked_ok(self, *args, **kwargs)
837
self.PropertyChanged(
838
dbus.String("LastCheckedOK"),
839
(self._datetime_to_dbus(self.last_checked_ok,
842
def need_approval(self, *args, **kwargs):
843
r = Client.need_approval(self, *args, **kwargs)
845
self.PropertyChanged(
846
dbus.String("LastApprovalRequest"),
847
(self._datetime_to_dbus(self.last_approval_request,
1389
851
def start_checker(self, *args, **kwargs):
1390
old_checker_pid = getattr(self.checker, "pid", None)
852
old_checker = self.checker
853
if self.checker is not None:
854
old_checker_pid = self.checker.pid
856
old_checker_pid = None
1391
857
r = Client.start_checker(self, *args, **kwargs)
1392
858
# Only if new checker process was started
1393
859
if (self.checker is not None
1394
860
and old_checker_pid != self.checker.pid):
1395
861
# Emit D-Bus signal
1396
862
self.CheckerStarted(self.current_checker_command)
863
self.PropertyChanged(
864
dbus.String("CheckerRunning"),
865
dbus.Boolean(True, variant_level=1))
868
def stop_checker(self, *args, **kwargs):
869
old_checker = getattr(self, "checker", None)
870
r = Client.stop_checker(self, *args, **kwargs)
871
if (old_checker is not None
872
and getattr(self, "checker", None) is None):
873
self.PropertyChanged(dbus.String("CheckerRunning"),
874
dbus.Boolean(False, variant_level=1))
1399
877
def _reset_approved(self):
1400
self.approved = None
878
self._approved = None
1403
881
def approve(self, value=True):
1404
self.approved = value
1405
gobject.timeout_add(int(self.approval_duration.total_seconds()
1406
* 1000), self._reset_approved)
1407
882
self.send_changedstate()
883
self._approved = value
884
gobject.timeout_add(self._timedelta_to_milliseconds
885
(self.approval_duration),
886
self._reset_approved)
1409
889
## D-Bus methods, signals & properties
890
_interface = "se.bsnet.fukt.Mandos.Client"
1567
1053
# LastCheckedOK - property
1568
@dbus_service_property(_interface,
1054
@dbus_service_property(_interface, signature="s",
1570
1055
access="readwrite")
1571
1056
def LastCheckedOK_dbus_property(self, value=None):
1572
1057
if value is not None:
1573
1058
self.checked_ok()
1575
return datetime_to_dbus(self.last_checked_ok)
1577
# LastCheckerStatus - property
1578
@dbus_service_property(_interface, signature="n", access="read")
1579
def LastCheckerStatus_dbus_property(self):
1580
return dbus.Int16(self.last_checker_status)
1582
# Expires - property
1583
@dbus_service_property(_interface, signature="s", access="read")
1584
def Expires_dbus_property(self):
1585
return datetime_to_dbus(self.expires)
1060
if self.last_checked_ok is None:
1061
return dbus.String("")
1062
return dbus.String(self._datetime_to_dbus(self
1587
1065
# LastApprovalRequest - property
1588
1066
@dbus_service_property(_interface, signature="s", access="read")
1589
1067
def LastApprovalRequest_dbus_property(self):
1590
return datetime_to_dbus(self.last_approval_request)
1068
if self.last_approval_request is None:
1069
return dbus.String("")
1070
return dbus.String(self.
1071
_datetime_to_dbus(self
1072
.last_approval_request))
1592
1074
# Timeout - property
1593
@dbus_service_property(_interface,
1075
@dbus_service_property(_interface, signature="t",
1595
1076
access="readwrite")
1596
1077
def Timeout_dbus_property(self, value=None):
1597
1078
if value is None: # get
1598
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1599
old_timeout = self.timeout
1079
return dbus.UInt64(self.timeout_milliseconds())
1600
1080
self.timeout = datetime.timedelta(0, 0, 0, value)
1601
# Reschedule disabling
1603
now = datetime.datetime.utcnow()
1604
self.expires += self.timeout - old_timeout
1605
if self.expires <= now:
1606
# The timeout has passed
1609
if (getattr(self, "disable_initiator_tag", None)
1612
gobject.source_remove(self.disable_initiator_tag)
1613
self.disable_initiator_tag = gobject.timeout_add(
1614
int((self.expires - now).total_seconds() * 1000),
1617
# ExtendedTimeout - property
1618
@dbus_service_property(_interface,
1621
def ExtendedTimeout_dbus_property(self, value=None):
1622
if value is None: # get
1623
return dbus.UInt64(self.extended_timeout.total_seconds()
1625
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1082
self.PropertyChanged(dbus.String("Timeout"),
1083
dbus.UInt64(value, variant_level=1))
1084
if getattr(self, "disable_initiator_tag", None) is None:
1086
# Reschedule timeout
1087
gobject.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
1089
time_to_die = (self.
1090
_timedelta_to_milliseconds((self
1095
if time_to_die <= 0:
1096
# The timeout has passed
1099
self.disable_initiator_tag = (gobject.timeout_add
1100
(time_to_die, self.disable))
1627
1102
# Interval - property
1628
@dbus_service_property(_interface,
1103
@dbus_service_property(_interface, signature="t",
1630
1104
access="readwrite")
1631
1105
def Interval_dbus_property(self, value=None):
1632
1106
if value is None: # get
1633
return dbus.UInt64(self.interval.total_seconds() * 1000)
1107
return dbus.UInt64(self.interval_milliseconds())
1634
1108
self.interval = datetime.timedelta(0, 0, 0, value)
1110
self.PropertyChanged(dbus.String("Interval"),
1111
dbus.UInt64(value, variant_level=1))
1635
1112
if getattr(self, "checker_initiator_tag", None) is None:
1638
# Reschedule checker run
1639
gobject.source_remove(self.checker_initiator_tag)
1640
self.checker_initiator_tag = gobject.timeout_add(
1641
value, self.start_checker)
1642
self.start_checker() # Start one now, too
1114
# Reschedule checker run
1115
gobject.source_remove(self.checker_initiator_tag)
1116
self.checker_initiator_tag = (gobject.timeout_add
1117
(value, self.start_checker))
1118
self.start_checker() # Start one now, too
1644
1120
# Checker - property
1645
@dbus_service_property(_interface,
1121
@dbus_service_property(_interface, signature="s",
1647
1122
access="readwrite")
1648
1123
def Checker_dbus_property(self, value=None):
1649
1124
if value is None: # get
1650
1125
return dbus.String(self.checker_command)
1651
self.checker_command = str(value)
1126
self.checker_command = value
1128
self.PropertyChanged(dbus.String("Checker"),
1129
dbus.String(self.checker_command,
1653
1132
# CheckerRunning - property
1654
@dbus_service_property(_interface,
1133
@dbus_service_property(_interface, signature="b",
1656
1134
access="readwrite")
1657
1135
def CheckerRunning_dbus_property(self, value=None):
1658
1136
if value is None: # get
1883
1359
def fingerprint(openpgp):
1884
1360
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1885
1361
# New GnuTLS "datum" with the OpenPGP public key
1886
datum = gnutls.library.types.gnutls_datum_t(
1887
ctypes.cast(ctypes.c_char_p(openpgp),
1888
ctypes.POINTER(ctypes.c_ubyte)),
1889
ctypes.c_uint(len(openpgp)))
1362
datum = (gnutls.library.types
1363
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1366
ctypes.c_uint(len(openpgp))))
1890
1367
# New empty GnuTLS certificate
1891
1368
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1892
gnutls.library.functions.gnutls_openpgp_crt_init(
1369
(gnutls.library.functions
1370
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1894
1371
# Import the OpenPGP public key into the certificate
1895
gnutls.library.functions.gnutls_openpgp_crt_import(
1896
crt, ctypes.byref(datum),
1897
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1372
(gnutls.library.functions
1373
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1374
gnutls.library.constants
1375
.GNUTLS_OPENPGP_FMT_RAW))
1898
1376
# Verify the self signature in the key
1899
1377
crtverify = ctypes.c_uint()
1900
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1901
crt, 0, ctypes.byref(crtverify))
1378
(gnutls.library.functions
1379
.gnutls_openpgp_crt_verify_self(crt, 0,
1380
ctypes.byref(crtverify)))
1902
1381
if crtverify.value != 0:
1903
1382
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1904
raise gnutls.errors.CertificateSecurityError(
1383
raise (gnutls.errors.CertificateSecurityError
1906
1385
# New buffer for the fingerprint
1907
1386
buf = ctypes.create_string_buffer(20)
1908
1387
buf_len = ctypes.c_size_t()
1909
1388
# Get the fingerprint from the certificate into the buffer
1910
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1911
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1389
(gnutls.library.functions
1390
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1391
ctypes.byref(buf_len)))
1912
1392
# Deinit the certificate
1913
1393
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1914
1394
# Convert the buffer to a Python bytestring
1915
1395
fpr = ctypes.string_at(buf, buf_len.value)
1916
1396
# Convert the bytestring to hexadecimal notation
1917
hex_fpr = binascii.hexlify(fpr).upper()
1397
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1921
1401
class MultiprocessingMixIn(object):
1922
1402
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1924
1403
def sub_process_main(self, request, address):
1926
1405
self.finish_request(request, address)
1928
1407
self.handle_error(request, address)
1929
1408
self.close_request(request)
1931
1410
def process_request(self, request, address):
1932
1411
"""Start a new process to process the request."""
1933
proc = multiprocessing.Process(target = self.sub_process_main,
1934
args = (request, address))
1412
multiprocessing.Process(target = self.sub_process_main,
1413
args = (request, address)).start()
1939
1415
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1940
1416
""" adds a pipe to the MixIn """
1942
1417
def process_request(self, request, client_address):
1943
1418
"""Overrides and wraps the original process_request().
1945
1420
This function creates a new pipe in self.pipe
1947
1422
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1949
proc = MultiprocessingMixIn.process_request(self, request,
1424
super(MultiprocessingMixInWithPipe,
1425
self).process_request(request, client_address)
1951
1426
self.child_pipe.close()
1952
self.add_pipe(parent_pipe, proc)
1954
def add_pipe(self, parent_pipe, proc):
1427
self.add_pipe(parent_pipe)
1429
def add_pipe(self, parent_pipe):
1955
1430
"""Dummy function; override as necessary"""
1956
raise NotImplementedError()
1431
raise NotImplementedError
1959
1433
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1960
1434
socketserver.TCPServer, object):
2063
1504
Assumes a gobject.MainLoop event loop.
2066
1506
def __init__(self, server_address, RequestHandlerClass,
2070
gnutls_priority=None,
1507
interface=None, use_ipv6=True, clients=None,
1508
gnutls_priority=None, use_dbus=True):
2073
1509
self.enabled = False
2074
1510
self.clients = clients
2075
1511
if self.clients is None:
1512
self.clients = set()
2077
1513
self.use_dbus = use_dbus
2078
1514
self.gnutls_priority = gnutls_priority
2079
1515
IPv6_TCPServer.__init__(self, server_address,
2080
1516
RequestHandlerClass,
2081
1517
interface = interface,
2082
use_ipv6 = use_ipv6,
2083
socketfd = socketfd)
1518
use_ipv6 = use_ipv6)
2085
1519
def server_activate(self):
2086
1520
if self.enabled:
2087
1521
return socketserver.TCPServer.server_activate(self)
2089
1522
def enable(self):
2090
1523
self.enabled = True
2092
def add_pipe(self, parent_pipe, proc):
1524
def add_pipe(self, parent_pipe):
2093
1525
# Call "handle_ipc" for both data and EOF events
2094
gobject.io_add_watch(
2095
parent_pipe.fileno(),
2096
gobject.IO_IN | gobject.IO_HUP,
2097
functools.partial(self.handle_ipc,
2098
parent_pipe = parent_pipe,
2101
def handle_ipc(self, source, condition,
1526
gobject.io_add_watch(parent_pipe.fileno(),
1527
gobject.IO_IN | gobject.IO_HUP,
1528
functools.partial(self.handle_ipc,
1529
parent_pipe = parent_pipe))
1531
def handle_ipc(self, source, condition, parent_pipe=None,
2104
1532
client_object=None):
2105
# error, or the other end of multiprocessing.Pipe has closed
2106
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2107
# Wait for other process to exit
1534
gobject.IO_IN: "IN", # There is data to read.
1535
gobject.IO_OUT: "OUT", # Data can be written (without
1537
gobject.IO_PRI: "PRI", # There is urgent data to read.
1538
gobject.IO_ERR: "ERR", # Error condition.
1539
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1540
# broken, usually for pipes and
1543
conditions_string = ' | '.join(name
1545
condition_names.iteritems()
1546
if cond & condition)
1547
# error or the other end of multiprocessing.Pipe has closed
1548
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2111
1551
# Read a request from the child
2116
1556
fpr = request[1]
2117
1557
address = request[2]
2119
for c in self.clients.itervalues():
1559
for c in self.clients:
2120
1560
if c.fingerprint == fpr:
2124
logger.info("Client not found for fingerprint: %s, ad"
2125
"dress: %s", fpr, address)
1564
logger.warning("Client not found for fingerprint: %s, ad"
1565
"dress: %s", fpr, address)
2126
1566
if self.use_dbus:
2127
1567
# Emit D-Bus signal
2128
mandos_dbus_service.ClientNotFound(fpr,
1568
mandos_dbus_service.ClientNotFound(fpr, address[0])
2130
1569
parent_pipe.send(False)
2133
gobject.io_add_watch(
2134
parent_pipe.fileno(),
2135
gobject.IO_IN | gobject.IO_HUP,
2136
functools.partial(self.handle_ipc,
2137
parent_pipe = parent_pipe,
2139
client_object = client))
1572
gobject.io_add_watch(parent_pipe.fileno(),
1573
gobject.IO_IN | gobject.IO_HUP,
1574
functools.partial(self.handle_ipc,
1575
parent_pipe = parent_pipe,
1576
client_object = client))
2140
1577
parent_pipe.send(True)
2141
# remove the old hook in favor of the new above hook on
1578
# remove the old hook in favor of the new above hook on same fileno
2144
1580
if command == 'funcall':
2145
1581
funcname = request[1]
2146
1582
args = request[2]
2147
1583
kwargs = request[3]
2149
parent_pipe.send(('data', getattr(client_object,
1585
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2153
1587
if command == 'getattr':
2154
1588
attrname = request[1]
2155
if isinstance(client_object.__getattribute__(attrname),
2156
collections.Callable):
2157
parent_pipe.send(('function', ))
1589
if callable(client_object.__getattribute__(attrname)):
1590
parent_pipe.send(('function',))
2160
'data', client_object.__getattribute__(attrname)))
1592
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2162
1594
if command == 'setattr':
2163
1595
attrname = request[1]
2164
1596
value = request[2]
2165
1597
setattr(client_object, attrname, value)
2170
def rfc3339_duration_to_delta(duration):
2171
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2173
>>> rfc3339_duration_to_delta("P7D")
2174
datetime.timedelta(7)
2175
>>> rfc3339_duration_to_delta("PT60S")
2176
datetime.timedelta(0, 60)
2177
>>> rfc3339_duration_to_delta("PT60M")
2178
datetime.timedelta(0, 3600)
2179
>>> rfc3339_duration_to_delta("PT24H")
2180
datetime.timedelta(1)
2181
>>> rfc3339_duration_to_delta("P1W")
2182
datetime.timedelta(7)
2183
>>> rfc3339_duration_to_delta("PT5M30S")
2184
datetime.timedelta(0, 330)
2185
>>> rfc3339_duration_to_delta("P1DT3M20S")
2186
datetime.timedelta(1, 200)
2189
# Parsing an RFC 3339 duration with regular expressions is not
2190
# possible - there would have to be multiple places for the same
2191
# values, like seconds. The current code, while more esoteric, is
2192
# cleaner without depending on a parsing library. If Python had a
2193
# built-in library for parsing we would use it, but we'd like to
2194
# avoid excessive use of external libraries.
2196
# New type for defining tokens, syntax, and semantics all-in-one
2197
Token = collections.namedtuple("Token", (
2198
"regexp", # To match token; if "value" is not None, must have
2199
# a "group" containing digits
2200
"value", # datetime.timedelta or None
2201
"followers")) # Tokens valid after this token
2202
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2203
# the "duration" ABNF definition in RFC 3339, Appendix A.
2204
token_end = Token(re.compile(r"$"), None, frozenset())
2205
token_second = Token(re.compile(r"(\d+)S"),
2206
datetime.timedelta(seconds=1),
2207
frozenset((token_end, )))
2208
token_minute = Token(re.compile(r"(\d+)M"),
2209
datetime.timedelta(minutes=1),
2210
frozenset((token_second, token_end)))
2211
token_hour = Token(re.compile(r"(\d+)H"),
2212
datetime.timedelta(hours=1),
2213
frozenset((token_minute, token_end)))
2214
token_time = Token(re.compile(r"T"),
2216
frozenset((token_hour, token_minute,
2218
token_day = Token(re.compile(r"(\d+)D"),
2219
datetime.timedelta(days=1),
2220
frozenset((token_time, token_end)))
2221
token_month = Token(re.compile(r"(\d+)M"),
2222
datetime.timedelta(weeks=4),
2223
frozenset((token_day, token_end)))
2224
token_year = Token(re.compile(r"(\d+)Y"),
2225
datetime.timedelta(weeks=52),
2226
frozenset((token_month, token_end)))
2227
token_week = Token(re.compile(r"(\d+)W"),
2228
datetime.timedelta(weeks=1),
2229
frozenset((token_end, )))
2230
token_duration = Token(re.compile(r"P"), None,
2231
frozenset((token_year, token_month,
2232
token_day, token_time,
2234
# Define starting values
2235
value = datetime.timedelta() # Value so far
2237
followers = frozenset((token_duration, )) # Following valid tokens
2238
s = duration # String left to parse
2239
# Loop until end token is found
2240
while found_token is not token_end:
2241
# Search for any currently valid tokens
2242
for token in followers:
2243
match = token.regexp.match(s)
2244
if match is not None:
2246
if token.value is not None:
2247
# Value found, parse digits
2248
factor = int(match.group(1), 10)
2249
# Add to value so far
2250
value += factor * token.value
2251
# Strip token from string
2252
s = token.regexp.sub("", s, 1)
2255
# Set valid next tokens
2256
followers = found_token.followers
2259
# No currently valid tokens were found
2260
raise ValueError("Invalid RFC 3339 duration: {!r}"
2266
1602
def string_to_delta(interval):
2267
1603
"""Parse a string and return a datetime.timedelta
2397
1736
"debug": "False",
2399
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2400
":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
1738
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2401
1739
"servicename": "Mandos",
2402
1740
"use_dbus": "True",
2403
1741
"use_ipv6": "True",
2404
1742
"debuglevel": "",
2407
"statedir": "/var/lib/mandos",
2408
"foreground": "False",
2412
1745
# Parse config file for server-global settings
2413
1746
server_config = configparser.SafeConfigParser(server_defaults)
2414
1747
del server_defaults
2415
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1748
server_config.read(os.path.join(options.configdir,
2416
1750
# Convert the SafeConfigParser object to a dict
2417
1751
server_settings = server_config.defaults()
2418
1752
# Use the appropriate methods on the non-string config options
2419
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
1753
for option in ("debug", "use_dbus", "use_ipv6"):
2420
1754
server_settings[option] = server_config.getboolean("DEFAULT",
2422
1756
if server_settings["port"]:
2423
1757
server_settings["port"] = server_config.getint("DEFAULT",
2425
if server_settings["socket"]:
2426
server_settings["socket"] = server_config.getint("DEFAULT",
2428
# Later, stdin will, and stdout and stderr might, be dup'ed
2429
# over with an opened os.devnull. But we don't want this to
2430
# happen with a supplied network socket.
2431
if 0 <= server_settings["socket"] <= 2:
2432
server_settings["socket"] = os.dup(server_settings
2434
1759
del server_config
2436
1761
# Override the settings from the config file with command line
2437
1762
# options, if set.
2438
1763
for option in ("interface", "address", "port", "debug",
2439
"priority", "servicename", "configdir", "use_dbus",
2440
"use_ipv6", "debuglevel", "restore", "statedir",
2441
"socket", "foreground", "zeroconf"):
1764
"priority", "servicename", "configdir",
1765
"use_dbus", "use_ipv6", "debuglevel"):
2442
1766
value = getattr(options, option)
2443
1767
if value is not None:
2444
1768
server_settings[option] = value
2446
1770
# Force all strings to be unicode
2447
1771
for option in server_settings.keys():
2448
if isinstance(server_settings[option], bytes):
2449
server_settings[option] = (server_settings[option]
2451
# Force all boolean options to be boolean
2452
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2453
"foreground", "zeroconf"):
2454
server_settings[option] = bool(server_settings[option])
2455
# Debug implies foreground
2456
if server_settings["debug"]:
2457
server_settings["foreground"] = True
1772
if type(server_settings[option]) is str:
1773
server_settings[option] = unicode(server_settings[option])
2458
1774
# Now we have our good server settings in "server_settings"
2460
1776
##################################################################
2462
if (not server_settings["zeroconf"]
2463
and not (server_settings["port"]
2464
or server_settings["socket"] != "")):
2465
parser.error("Needs port or socket to work without Zeroconf")
2467
1778
# For convenience
2468
1779
debug = server_settings["debug"]
2469
1780
debuglevel = server_settings["debuglevel"]
2470
1781
use_dbus = server_settings["use_dbus"]
2471
1782
use_ipv6 = server_settings["use_ipv6"]
2472
stored_state_path = os.path.join(server_settings["statedir"],
2474
foreground = server_settings["foreground"]
2475
zeroconf = server_settings["zeroconf"]
2478
initlogger(debug, logging.DEBUG)
2483
level = getattr(logging, debuglevel.upper())
2484
initlogger(debug, level)
2486
1784
if server_settings["servicename"] != "Mandos":
2487
syslogger.setFormatter(
2488
logging.Formatter('Mandos ({}) [%(process)d]:'
2489
' %(levelname)s: %(message)s'.format(
2490
server_settings["servicename"])))
1785
syslogger.setFormatter(logging.Formatter
1786
('Mandos (%s) [%%(process)d]:'
1787
' %%(levelname)s: %%(message)s'
1788
% server_settings["servicename"]))
2492
1790
# Parse config file with clients
2493
client_config = configparser.SafeConfigParser(Client
1791
client_defaults = { "timeout": "1h",
1793
"checker": "fping -q -- %%(host)s",
1795
"approval_delay": "0s",
1796
"approval_duration": "1s",
1798
client_config = configparser.SafeConfigParser(client_defaults)
2495
1799
client_config.read(os.path.join(server_settings["configdir"],
2496
1800
"clients.conf"))
2498
1802
global mandos_dbus_service
2499
1803
mandos_dbus_service = None
2502
if server_settings["socket"] != "":
2503
socketfd = server_settings["socket"]
2504
tcp_server = MandosServer(
2505
(server_settings["address"], server_settings["port"]),
2507
interface=(server_settings["interface"] or None),
2509
gnutls_priority=server_settings["priority"],
2513
pidfilename = "/run/mandos.pid"
2514
if not os.path.isdir("/run/."):
2515
pidfilename = "/var/run/mandos.pid"
1805
tcp_server = MandosServer((server_settings["address"],
1806
server_settings["port"]),
1808
interface=(server_settings["interface"]
1812
server_settings["priority"],
1815
pidfilename = "/var/run/mandos.pid"
2518
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2519
except IOError as e:
2520
logger.error("Could not open file %r", pidfilename,
1817
pidfile = open(pidfilename, "w")
1819
logger.error("Could not open file %r", pidfilename)
2523
for name in ("_mandos", "mandos", "nobody"):
1822
uid = pwd.getpwnam("_mandos").pw_uid
1823
gid = pwd.getpwnam("_mandos").pw_gid
2525
uid = pwd.getpwnam(name).pw_uid
2526
gid = pwd.getpwnam(name).pw_gid
1826
uid = pwd.getpwnam("mandos").pw_uid
1827
gid = pwd.getpwnam("mandos").pw_gid
2528
1828
except KeyError:
1830
uid = pwd.getpwnam("nobody").pw_uid
1831
gid = pwd.getpwnam("nobody").pw_gid
2536
1838
except OSError as error:
2537
if error.errno != errno.EPERM:
1839
if error[0] != errno.EPERM:
1842
if not debug and not debuglevel:
1843
syslogger.setLevel(logging.WARNING)
1844
console.setLevel(logging.WARNING)
1846
level = getattr(logging, debuglevel.upper())
1847
syslogger.setLevel(level)
1848
console.setLevel(level)
2541
1851
# Enable all possible GnuTLS debugging
2548
1858
def debug_gnutls(level, string):
2549
1859
logger.debug("GnuTLS: %s", string[:-1])
2551
gnutls.library.functions.gnutls_global_set_log_function(
1861
(gnutls.library.functions
1862
.gnutls_global_set_log_function(debug_gnutls))
2554
1864
# Redirect stdin so all checkers get /dev/null
2555
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1865
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2556
1866
os.dup2(null, sys.stdin.fileno())
1870
# No console logging
1871
logger.removeHandler(console)
2560
1873
# Need to fork before connecting to D-Bus
2562
1875
# Close all input and output, do double fork, etc.
2565
# multiprocessing will use threads, so before we use gobject we
2566
# need to inform gobject that threads will be used.
2567
gobject.threads_init()
2569
1878
global main_loop
2570
1879
# From the Avahi example code
2571
DBusGMainLoop(set_as_default=True)
1880
DBusGMainLoop(set_as_default=True )
2572
1881
main_loop = gobject.MainLoop()
2573
1882
bus = dbus.SystemBus()
2574
1883
# End of Avahi example code
2577
bus_name = dbus.service.BusName("se.recompile.Mandos",
2580
old_bus_name = dbus.service.BusName(
2581
"se.bsnet.fukt.Mandos", bus,
2583
except dbus.exceptions.DBusException as e:
2584
logger.error("Disabling D-Bus:", exc_info=e)
1886
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1887
bus, do_not_queue=True)
1888
except dbus.exceptions.NameExistsException as e:
1889
logger.error(unicode(e) + ", disabling D-Bus")
2585
1890
use_dbus = False
2586
1891
server_settings["use_dbus"] = False
2587
1892
tcp_server.use_dbus = False
2589
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2590
service = AvahiServiceToSyslog(
2591
name = server_settings["servicename"],
2592
servicetype = "_mandos._tcp",
2593
protocol = protocol,
2595
if server_settings["interface"]:
2596
service.interface = if_nametoindex(
2597
server_settings["interface"].encode("utf-8"))
1893
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1894
service = AvahiService(name = server_settings["servicename"],
1895
servicetype = "_mandos._tcp",
1896
protocol = protocol, bus = bus)
1897
if server_settings["interface"]:
1898
service.interface = (if_nametoindex
1899
(str(server_settings["interface"])))
2599
1901
global multiprocessing_manager
2600
1902
multiprocessing_manager = multiprocessing.Manager()
2602
1904
client_class = Client
2604
1906
client_class = functools.partial(ClientDBus, bus = bus)
2606
client_settings = Client.config_parser(client_config)
2607
old_client_settings = {}
2610
# This is used to redirect stdout and stderr for checker processes
2612
wnull = open(os.devnull, "w") # A writable /dev/null
2613
# Only used if server is running in foreground but not in debug
2615
if debug or not foreground:
2618
# Get client data and settings from last running state.
2619
if server_settings["restore"]:
2621
with open(stored_state_path, "rb") as stored_state:
2622
clients_data, old_client_settings = pickle.load(
2624
os.remove(stored_state_path)
2625
except IOError as e:
2626
if e.errno == errno.ENOENT:
2627
logger.warning("Could not load persistent state:"
2628
" {}".format(os.strerror(e.errno)))
2630
logger.critical("Could not load persistent state:",
2633
except EOFError as e:
2634
logger.warning("Could not load persistent state: "
2638
with PGPEngine() as pgp:
2639
for client_name, client in clients_data.items():
2640
# Skip removed clients
2641
if client_name not in client_settings:
2644
# Decide which value to use after restoring saved state.
2645
# We have three different values: Old config file,
2646
# new config file, and saved state.
2647
# New config value takes precedence if it differs from old
2648
# config value, otherwise use saved state.
2649
for name, value in client_settings[client_name].items():
2651
# For each value in new config, check if it
2652
# differs from the old config value (Except for
2653
# the "secret" attribute)
2654
if (name != "secret"
2656
old_client_settings[client_name][name])):
2657
client[name] = value
2661
# Clients who has passed its expire date can still be
2662
# enabled if its last checker was successful. A Client
2663
# whose checker succeeded before we stored its state is
2664
# assumed to have successfully run all checkers during
2666
if client["enabled"]:
2667
if datetime.datetime.utcnow() >= client["expires"]:
2668
if not client["last_checked_ok"]:
2670
"disabling client {} - Client never "
2671
"performed a successful checker".format(
2673
client["enabled"] = False
2674
elif client["last_checker_status"] != 0:
2676
"disabling client {} - Client last"
2677
" checker failed with error code"
2680
client["last_checker_status"]))
2681
client["enabled"] = False
2683
client["expires"] = (
2684
datetime.datetime.utcnow()
2685
+ client["timeout"])
2686
logger.debug("Last checker succeeded,"
2687
" keeping {} enabled".format(
1907
def client_config_items(config, section):
1908
special_settings = {
1909
"approved_by_default":
1910
lambda: config.getboolean(section,
1911
"approved_by_default"),
1913
for name, value in config.items(section):
2690
client["secret"] = pgp.decrypt(
2691
client["encrypted_secret"],
2692
client_settings[client_name]["secret"])
2694
# If decryption fails, we use secret from new settings
2695
logger.debug("Failed to decrypt {} old secret".format(
2697
client["secret"] = (client_settings[client_name]
2700
# Add/remove clients based on new changes made to config
2701
for client_name in (set(old_client_settings)
2702
- set(client_settings)):
2703
del clients_data[client_name]
2704
for client_name in (set(client_settings)
2705
- set(old_client_settings)):
2706
clients_data[client_name] = client_settings[client_name]
2708
# Create all client objects
2709
for client_name, client in clients_data.items():
2710
tcp_server.clients[client_name] = client_class(
2713
server_settings = server_settings)
1915
yield (name, special_settings[name]())
1919
tcp_server.clients.update(set(
1920
client_class(name = section,
1921
config= dict(client_config_items(
1922
client_config, section)))
1923
for section in client_config.sections()))
2715
1924
if not tcp_server.clients:
2716
1925
logger.warning("No clients defined")
2719
if pidfile is not None:
2723
print(pid, file=pidfile)
2725
logger.error("Could not write to file %r with PID %d",
1931
pidfile.write(str(pid) + "\n".encode("utf-8"))
1934
logger.error("Could not write to file %r with PID %d",
1937
# "pidfile" was never created
2728
1939
del pidfilename
1941
signal.signal(signal.SIGINT, signal.SIG_IGN)
2730
1943
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2731
1944
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2735
@alternate_dbus_interfaces(
2736
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2737
class MandosDBusService(DBusObjectWithProperties):
1947
class MandosDBusService(dbus.service.Object):
2738
1948
"""A D-Bus proxy object"""
2740
1949
def __init__(self):
2741
1950
dbus.service.Object.__init__(self, bus, "/")
2743
_interface = "se.recompile.Mandos"
2745
@dbus_interface_annotations(_interface)
2748
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1951
_interface = "se.bsnet.fukt.Mandos"
2751
1953
@dbus.service.signal(_interface, signature="o")
2752
1954
def ClientAdded(self, objpath):
2800
2002
"Cleanup function; run on exit"
2804
multiprocessing.active_children()
2806
if not (tcp_server.clients or client_settings):
2809
# Store client before exiting. Secrets are encrypted with key
2810
# based on what config file has. If config file is
2811
# removed/edited, old secret will thus be unrecovable.
2813
with PGPEngine() as pgp:
2814
for client in tcp_server.clients.itervalues():
2815
key = client_settings[client.name]["secret"]
2816
client.encrypted_secret = pgp.encrypt(client.secret,
2820
# A list of attributes that can not be pickled
2822
exclude = { "bus", "changedstate", "secret",
2823
"checker", "server_settings" }
2824
for name, typ in inspect.getmembers(dbus.service
2828
client_dict["encrypted_secret"] = (client
2830
for attr in client.client_structure:
2831
if attr not in exclude:
2832
client_dict[attr] = getattr(client, attr)
2834
clients[client.name] = client_dict
2835
del client_settings[client.name]["secret"]
2838
with tempfile.NamedTemporaryFile(
2842
dir=os.path.dirname(stored_state_path),
2843
delete=False) as stored_state:
2844
pickle.dump((clients, client_settings), stored_state)
2845
tempname = stored_state.name
2846
os.rename(tempname, stored_state_path)
2847
except (IOError, OSError) as e:
2853
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2854
logger.warning("Could not save persistent state: {}"
2855
.format(os.strerror(e.errno)))
2857
logger.warning("Could not save persistent state:",
2861
# Delete all clients, and settings from config
2862
2005
while tcp_server.clients:
2863
name, client = tcp_server.clients.popitem()
2006
client = tcp_server.clients.pop()
2865
2008
client.remove_from_connection()
2009
client.disable_hook = None
2866
2010
# Don't signal anything except ClientRemoved
2867
2011
client.disable(quiet=True)
2869
2013
# Emit D-Bus signal
2870
mandos_dbus_service.ClientRemoved(
2871
client.dbus_object_path, client.name)
2872
client_settings.clear()
2014
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2874
2017
atexit.register(cleanup)
2876
for client in tcp_server.clients.itervalues():
2019
for client in tcp_server.clients:
2878
2021
# Emit D-Bus signal
2879
2022
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2880
# Need to initiate checking of clients
2882
client.init_checker()
2884
2025
tcp_server.enable()
2885
2026
tcp_server.server_activate()
2887
2028
# Find out what port we got
2889
service.port = tcp_server.socket.getsockname()[1]
2029
service.port = tcp_server.socket.getsockname()[1]
2891
2031
logger.info("Now listening on address %r, port %d,"
2892
" flowinfo %d, scope_id %d",
2893
*tcp_server.socket.getsockname())
2032
" flowinfo %d, scope_id %d"
2033
% tcp_server.socket.getsockname())
2895
logger.info("Now listening on address %r, port %d",
2896
*tcp_server.socket.getsockname())
2035
logger.info("Now listening on address %r, port %d"
2036
% tcp_server.socket.getsockname())
2898
2038
#service.interface = tcp_server.socket.getsockname()[3]
2902
# From the Avahi example code
2905
except dbus.exceptions.DBusException as error:
2906
logger.critical("D-Bus Exception", exc_info=error)
2909
# End of Avahi example code
2041
# From the Avahi example code
2044
except dbus.exceptions.DBusException as error:
2045
logger.critical("DBusException: %s", error)
2048
# End of Avahi example code
2911
2050
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2912
2051
lambda *args, **kwargs: