80
101
except ImportError:
81
102
SO_BINDTODEVICE = None
86
logger = logging.Logger(u'mandos')
87
syslogger = (logging.handlers.SysLogHandler
88
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
89
address = "/dev/log"))
90
syslogger.setFormatter(logging.Formatter
91
(u'Mandos [%(process)d]: %(levelname)s:'
93
logger.addHandler(syslogger)
95
console = logging.StreamHandler()
96
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
99
logger.addHandler(console)
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
101
237
class AvahiError(Exception):
102
238
def __init__(self, value, *args, **kwargs):
103
239
self.value = value
104
super(AvahiError, self).__init__(value, *args, **kwargs)
105
def __unicode__(self):
106
return unicode(repr(self.value))
240
return super(AvahiError, self).__init__(value, *args,
108
244
class AvahiServiceError(AvahiError):
111
248
class AvahiGroupError(AvahiError):
191
352
dbus.UInt16(self.port),
192
353
avahi.string_array_to_txt_array(self.TXT))
193
354
self.group.Commit()
194
356
def entry_group_state_changed(self, state, error):
195
357
"""Derived from the Avahi example code"""
196
logger.debug(u"Avahi state change: %i", state)
358
logger.debug("Avahi entry group state change: %i", state)
198
360
if state == avahi.ENTRY_GROUP_ESTABLISHED:
199
logger.debug(u"Zeroconf service established.")
361
logger.debug("Zeroconf service established.")
200
362
elif state == avahi.ENTRY_GROUP_COLLISION:
201
logger.warning(u"Zeroconf service name collision.")
363
logger.info("Zeroconf service name collision.")
203
365
elif state == avahi.ENTRY_GROUP_FAILURE:
204
logger.critical(u"Avahi: Error in group state changed %s",
206
raise AvahiGroupError(u"State changed: %s"
366
logger.critical("Avahi: Error in group state changed %s",
368
raise AvahiGroupError("State changed: {!s}".format(error))
208
370
def cleanup(self):
209
371
"""Derived from the Avahi example code"""
210
372
if self.group is not None:
375
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
212
378
self.group = None
213
def server_state_changed(self, state):
381
def server_state_changed(self, state, error=None):
214
382
"""Derived from the Avahi example code"""
215
if state == avahi.SERVER_COLLISION:
216
logger.error(u"Zeroconf server name collision")
383
logger.debug("Avahi server state change: %i", state)
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
390
if state in bad_states:
391
if bad_states[state] is not None:
393
logger.error(bad_states[state])
395
logger.error(bad_states[state] + ": %r", error)
218
397
elif state == avahi.SERVER_RUNNING:
400
except dbus.exceptions.DBusException as error:
401
if (error.get_dbus_name()
402
== "org.freedesktop.Avahi.CollisionError"):
403
logger.info("Local Zeroconf service name"
405
return self.rename(remove=False)
407
logger.critical("D-Bus Exception", exc_info=error)
412
logger.debug("Unknown state: %r", state)
414
logger.debug("Unknown state: %r: %r", state, error)
220
416
def activate(self):
221
417
"""Derived from the Avahi example code"""
222
418
if self.server is None:
223
419
self.server = dbus.Interface(
224
420
self.bus.get_object(avahi.DBUS_NAME,
225
avahi.DBUS_PATH_SERVER),
421
avahi.DBUS_PATH_SERVER,
422
follow_name_owner_changes=True),
226
423
avahi.DBUS_INTERFACE_SERVER)
227
self.server.connect_to_signal(u"StateChanged",
228
self.server_state_changed)
424
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
229
426
self.server_state_changed(self.server.GetState())
429
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
431
"""Add the new name to the syslog messages"""
432
ret = AvahiService.rename(self, *args, **kwargs)
433
syslogger.setFormatter(logging.Formatter(
434
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
438
def call_pipe(connection, # : multiprocessing.Connection
439
func, *args, **kwargs):
440
"""This function is meant to be called by multiprocessing.Process
442
This function runs func(*args, **kwargs), and writes the resulting
443
return value on the provided multiprocessing.Connection.
445
connection.send(func(*args, **kwargs))
232
448
class Client(object):
233
449
"""A representation of a client host served by this server.
236
name: string; from the config file, used in log messages and
452
approved: bool(); 'None' if not yet approved/disapproved
453
approval_delay: datetime.timedelta(); Time to wait for approval
454
approval_duration: datetime.timedelta(); Duration of one approval
455
checker: subprocess.Popen(); a running checker process used
456
to see if the client lives.
457
'None' if no process is running.
458
checker_callback_tag: a gobject event source tag, or None
459
checker_command: string; External command which is run to check
460
if client lives. %() expansions are done at
461
runtime with vars(self) as dict, so that for
462
instance %(name)s can be used in the command.
463
checker_initiator_tag: a gobject event source tag, or None
464
created: datetime.datetime(); (UTC) object creation
465
client_structure: Object describing what attributes a client has
466
and is used for storing the client at exit
467
current_checker_command: string; current running checker_command
468
disable_initiator_tag: a gobject event source tag, or None
238
470
fingerprint: string (40 or 32 hexadecimal digits); used to
239
471
uniquely identify the client
240
secret: bytestring; sent verbatim (over TLS) to client
241
472
host: string; available for use by the checker command
242
created: datetime.datetime(); (UTC) object creation
243
last_enabled: datetime.datetime(); (UTC)
473
interval: datetime.timedelta(); How often to start a new checker
474
last_approval_request: datetime.datetime(); (UTC) or None
245
475
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
482
name: string; from the config file, used in log messages and
484
secret: bytestring; sent verbatim (over TLS) to client
246
485
timeout: datetime.timedelta(); How long from last_checked_ok
247
486
until this client is disabled
248
interval: datetime.timedelta(); How often to start a new checker
249
disable_hook: If set, called by disable() as disable_hook(self)
250
checker: subprocess.Popen(); a running checker process used
251
to see if the client lives.
252
'None' if no process is running.
253
checker_initiator_tag: a gobject event source tag, or None
254
disable_initiator_tag: - '' -
255
checker_callback_tag: - '' -
256
checker_command: string; External command which is run to check if
257
client lives. %() expansions are done at
258
runtime with vars(self) as dict, so that for
259
instance %(name)s can be used in the command.
260
current_checker_command: string; current running checker_command
261
approved_delay: datetime.timedelta(); Time to wait for approval
262
_approved: bool(); 'None' if not yet approved/disapproved
263
approved_duration: datetime.timedelta(); Duration of one approval
487
extended_timeout: extra long timeout when secret has been sent
488
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
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
498
"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",
267
def _timedelta_to_milliseconds(td):
268
"Convert a datetime.timedelta() to milliseconds"
269
return ((td.days * 24 * 60 * 60 * 1000)
270
+ (td.seconds * 1000)
271
+ (td.microseconds // 1000))
273
def timeout_milliseconds(self):
274
"Return the 'timeout' attribute in milliseconds"
275
return self._timedelta_to_milliseconds(self.timeout)
277
def interval_milliseconds(self):
278
"Return the 'interval' attribute in milliseconds"
279
return self._timedelta_to_milliseconds(self.interval)
281
def approved_delay_milliseconds(self):
282
return self._timedelta_to_milliseconds(self.approved_delay)
284
def __init__(self, name = None, disable_hook=None, config=None):
285
"""Note: the 'checker' key in 'config' sets the
286
'checker_command' attribute and *not* the 'checker'
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):
291
logger.debug(u"Creating client %r", self.name)
292
# Uppercase and remove spaces from fingerprint for later
293
# comparison purposes with return value from the fingerprint()
295
self.fingerprint = (config[u"fingerprint"].upper()
297
logger.debug(u" Fingerprint: %s", self.fingerprint)
298
if u"secret" in config:
299
self.secret = config[u"secret"].decode(u"base64")
300
elif u"secfile" in config:
301
with open(os.path.expanduser(os.path.expandvars
302
(config[u"secfile"])),
304
self.secret = secfile.read()
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()
306
#XXX Need to allow secret on demand!
307
raise TypeError(u"No secret or secfile for client %s"
309
self.host = config.get(u"host", u"")
310
self.created = datetime.datetime.utcnow()
312
self.last_enabled = None
313
self.last_checked_ok = None
314
self.timeout = string_to_delta(config[u"timeout"])
315
self.interval = string_to_delta(config[u"interval"])
316
self.disable_hook = disable_hook
577
self.last_enabled = None
580
logger.debug("Creating client %r", self.name)
581
logger.debug(" Fingerprint: %s", self.fingerprint)
582
self.created = settings.get("created",
583
datetime.datetime.utcnow())
585
# attributes specific for this server instance
317
586
self.checker = None
318
587
self.checker_initiator_tag = None
319
588
self.disable_initiator_tag = None
320
589
self.checker_callback_tag = None
321
self.checker_command = config[u"checker"]
322
590
self.current_checker_command = None
323
self.last_connect = None
324
592
self.approvals_pending = 0
325
self._approved = None
326
self.approved_by_default = config.get(u"approved_by_default",
328
self.approved_delay = string_to_delta(
329
config[u"approved_delay"])
330
self.approved_duration = string_to_delta(
331
config[u"approved_duration"])
332
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
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)
605
# Send notice to process children that client state has changed
334
606
def send_changedstate(self):
335
self.changedstate.acquire()
336
self.changedstate.notify_all()
337
self.changedstate.release()
607
with self.changedstate:
608
self.changedstate.notify_all()
339
610
def enable(self):
340
611
"""Start this client's checker and timeout hooks"""
341
if getattr(self, u"enabled", False):
612
if getattr(self, "enabled", False):
342
613
# Already enabled
344
self.send_changedstate()
615
self.expires = datetime.datetime.utcnow() + self.timeout
345
617
self.last_enabled = datetime.datetime.utcnow()
346
# Schedule a new checker to be started an 'interval' from now,
347
# and every interval from then on.
348
self.checker_initiator_tag = (gobject.timeout_add
349
(self.interval_milliseconds(),
351
# Schedule a disable() when 'timeout' has passed
352
self.disable_initiator_tag = (gobject.timeout_add
353
(self.timeout_milliseconds(),
356
# Also start a new checker *right now*.
619
self.send_changedstate()
359
621
def disable(self, quiet=True):
360
622
"""Disable this client."""
361
623
if not getattr(self, "enabled", False):
626
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
628
gobject.source_remove(self.disable_initiator_tag)
629
self.disable_initiator_tag = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
632
gobject.source_remove(self.checker_initiator_tag)
633
self.checker_initiator_tag = None
364
637
self.send_changedstate()
366
logger.info(u"Disabling client %s", self.name)
367
if getattr(self, u"disable_initiator_tag", False):
368
gobject.source_remove(self.disable_initiator_tag)
369
self.disable_initiator_tag = None
370
if getattr(self, u"checker_initiator_tag", False):
371
gobject.source_remove(self.checker_initiator_tag)
372
self.checker_initiator_tag = None
374
if self.disable_hook:
375
self.disable_hook(self)
377
638
# Do not run this again if called by a gobject.timeout_add
380
641
def __del__(self):
381
self.disable_hook = None
384
def checker_callback(self, pid, condition, command):
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,
385
662
"""The checker has completed, so take appropriate actions."""
386
663
self.checker_callback_tag = None
387
664
self.checker = None
388
if os.WIFEXITED(condition):
389
exitstatus = os.WEXITSTATUS(condition)
391
logger.info(u"Checker for %(name)s succeeded",
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:
673
logger.info("Checker for %(name)s succeeded",
393
675
self.checked_ok()
395
logger.info(u"Checker for %(name)s failed",
677
logger.info("Checker for %(name)s failed", vars(self))
398
logger.warning(u"Checker for %(name)s crashed?",
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
logger.warning("Checker for %(name)s crashed?",
401
685
def checked_ok(self):
402
"""Bump up the timeout for this client.
404
This should only be called when the client has been seen,
686
"""Assert that the client has been seen, alive and well."""
407
687
self.last_checked_ok = datetime.datetime.utcnow()
408
gobject.source_remove(self.disable_initiator_tag)
409
self.disable_initiator_tag = (gobject.timeout_add
410
(self.timeout_milliseconds(),
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
704
def need_approval(self):
705
self.last_approval_request = datetime.datetime.utcnow()
413
707
def start_checker(self):
414
708
"""Start a new checker subprocess if one is not running.
416
710
If a checker already exists, leave it running and do
418
712
# The reason for not killing a running checker is that if we
419
# did that, then if a checker (for some reason) started
420
# running slowly and taking more than 'interval' time, the
421
# client would inevitably timeout, since no checker would get
422
# a chance to run to completion. If we instead leave running
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
423
717
# checkers alone, the checker would have to take more time
424
718
# than 'timeout' for the client to be disabled, which is as it
427
# If a checker exists, make sure it is not a zombie
429
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
430
except (AttributeError, OSError), error:
431
if (isinstance(error, OSError)
432
and error.errno != errno.ECHILD):
436
logger.warning(u"Checker was a zombie")
437
gobject.source_remove(self.checker_callback_tag)
438
self.checker_callback(pid, status,
439
self.current_checker_command)
721
if self.checker is not None and not self.checker.is_alive():
722
logger.warning("Checker was not alive; joining")
440
725
# Start a new checker if needed
441
726
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 }
443
# In case checker_command has exactly one % operator
444
command = self.checker_command % self.host
446
# Escape attributes for the shell
447
escaped_attrs = dict((key,
448
re.escape(unicode(str(val),
452
vars(self).iteritems())
454
command = self.checker_command % escaped_attrs
455
except TypeError, error:
456
logger.error(u'Could not format string "%s":'
457
u' %s', self.checker_command, error)
458
return True # Try again later
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
459
738
self.current_checker_command = command
461
logger.info(u"Starting checker %r for %s",
463
# We don't need to redirect stdout and stderr, since
464
# in normal mode, that is already done by daemon(),
465
# and in debug mode we don't want to. (Stdin is
466
# always replaced by /dev/null.)
467
self.checker = subprocess.Popen(command,
469
shell=True, cwd=u"/")
470
self.checker_callback_tag = (gobject.child_watch_add
472
self.checker_callback,
474
# The checker may have completed before the gobject
475
# watch was added. Check for this.
476
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
478
gobject.source_remove(self.checker_callback_tag)
479
self.checker_callback(pid, status, command)
480
except OSError, error:
481
logger.error(u"Failed to start subprocess: %s",
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)
483
764
# Re-run this periodically if run by gobject.timeout_add
553
872
class DBusObjectWithProperties(dbus.service.Object):
554
873
"""A D-Bus object with properties.
556
875
Classes inheriting from this can use the dbus_service_property
557
876
decorator to expose methods as D-Bus properties. It exposes the
558
877
standard Get(), Set(), and GetAll() methods on the D-Bus.
562
def _is_dbus_property(obj):
563
return getattr(obj, u"_dbus_is_property", False)
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),
565
def _get_all_dbus_properties(self):
890
def _get_all_dbus_things(self, thing):
566
891
"""Returns a generator of (name, attribute) pairs
568
return ((prop._dbus_name, prop)
570
inspect.getmembers(self, self._is_dbus_property))
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)))
572
899
def _get_dbus_property(self, interface_name, property_name):
573
900
"""Returns a bound method if one exists which is a D-Bus
574
901
property with the specified name and interface.
576
for name in (property_name,
577
property_name + u"_dbus_property"):
578
prop = getattr(self, name, None)
580
or not self._is_dbus_property(prop)
581
or prop._dbus_name != property_name
582
or (interface_name and prop._dbus_interface
583
and interface_name != prop._dbus_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)
586
910
# No such property
587
raise DBusPropertyNotFound(self.dbus_object_path + u":"
588
+ interface_name + u"."
911
raise DBusPropertyNotFound("{}:{}.{}".format(
912
self.dbus_object_path, interface_name, property_name))
591
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
914
@dbus.service.method(dbus.PROPERTIES_IFACE,
593
917
def Get(self, interface_name, property_name):
594
918
"""Standard D-Bus property Get() method, see D-Bus standard.
596
920
prop = self._get_dbus_property(interface_name, property_name)
597
if prop._dbus_access == u"write":
921
if prop._dbus_access == "write":
598
922
raise DBusPropertyAccessException(property_name)
600
if not hasattr(value, u"variant_level"):
924
if not hasattr(value, "variant_level"):
602
926
return type(value)(value, variant_level=value.variant_level+1)
604
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
928
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
605
929
def Set(self, interface_name, property_name, value):
606
930
"""Standard D-Bus property Set() method, see D-Bus standard.
608
932
prop = self._get_dbus_property(interface_name, property_name)
609
if prop._dbus_access == u"read":
933
if prop._dbus_access == "read":
610
934
raise DBusPropertyAccessException(property_name)
611
if prop._dbus_get_args_options[u"byte_arrays"]:
935
if prop._dbus_get_args_options["byte_arrays"]:
612
936
# The byte_arrays option is not supported yet on
613
937
# signatures other than "ay".
614
if prop._dbus_signature != u"ay":
616
value = dbus.ByteArray(''.join(unichr(byte)
938
if prop._dbus_signature != "ay":
939
raise ValueError("Byte arrays not supported for non-"
940
"'ay' signature {!r}"
941
.format(prop._dbus_signature))
942
value = dbus.ByteArray(b''.join(chr(byte)
620
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
621
out_signature=u"a{sv}")
946
@dbus.service.method(dbus.PROPERTIES_IFACE,
948
out_signature="a{sv}")
622
949
def GetAll(self, interface_name):
623
950
"""Standard D-Bus property GetAll() method, see D-Bus
626
953
Note: Will not include properties with access="write".
629
for name, prop in self._get_all_dbus_properties():
956
for name, prop in self._get_all_dbus_things("property"):
630
957
if (interface_name
631
958
and interface_name != prop._dbus_interface):
632
959
# Interface non-empty but did not match
634
961
# Ignore write-only properties
635
if prop._dbus_access == u"write":
962
if prop._dbus_access == "write":
638
if not hasattr(value, u"variant_level"):
965
if not hasattr(value, "variant_level"):
966
properties[name] = value
641
all[name] = type(value)(value, variant_level=
642
value.variant_level+1)
643
return dbus.Dictionary(all, signature=u"sv")
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
645
980
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
647
982
path_keyword='object_path',
648
983
connection_keyword='connection')
649
984
def Introspect(self, object_path, connection):
650
"""Standard D-Bus method, overloaded to insert property tags.
985
"""Overloading of standard D-Bus method.
987
Inserts property tags and interface annotation tags.
652
989
xmlstring = dbus.service.Object.Introspect(self, object_path,
655
992
document = xml.dom.minidom.parseString(xmlstring)
656
994
def make_tag(document, name, prop):
657
e = document.createElement(u"property")
658
e.setAttribute(u"name", name)
659
e.setAttribute(u"type", prop._dbus_signature)
660
e.setAttribute(u"access", prop._dbus_access)
995
e = document.createElement("property")
996
e.setAttribute("name", name)
997
e.setAttribute("type", prop._dbus_signature)
998
e.setAttribute("access", prop._dbus_access)
662
for if_tag in document.getElementsByTagName(u"interface"):
1001
for if_tag in document.getElementsByTagName("interface"):
663
1003
for tag in (make_tag(document, name, prop)
665
in self._get_all_dbus_properties()
1005
in self._get_all_dbus_things("property")
666
1006
if prop._dbus_interface
667
== if_tag.getAttribute(u"name")):
1007
== if_tag.getAttribute("name")):
668
1008
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)
669
1038
# Add the names to the return values for the
670
1039
# "org.freedesktop.DBus.Properties" methods
671
if (if_tag.getAttribute(u"name")
672
== u"org.freedesktop.DBus.Properties"):
673
for cn in if_tag.getElementsByTagName(u"method"):
674
if cn.getAttribute(u"name") == u"Get":
675
for arg in cn.getElementsByTagName(u"arg"):
676
if (arg.getAttribute(u"direction")
678
arg.setAttribute(u"name", u"value")
679
elif cn.getAttribute(u"name") == u"GetAll":
680
for arg in cn.getElementsByTagName(u"arg"):
681
if (arg.getAttribute(u"direction")
683
arg.setAttribute(u"name", u"props")
684
xmlstring = document.toxml(u"utf-8")
1040
if (if_tag.getAttribute("name")
1041
== "org.freedesktop.DBus.Properties"):
1042
for cn in if_tag.getElementsByTagName("method"):
1043
if cn.getAttribute("name") == "Get":
1044
for arg in cn.getElementsByTagName("arg"):
1045
if (arg.getAttribute("direction")
1047
arg.setAttribute("name", "value")
1048
elif cn.getAttribute("name") == "GetAll":
1049
for arg in cn.getElementsByTagName("arg"):
1050
if (arg.getAttribute("direction")
1052
arg.setAttribute("name", "props")
1053
xmlstring = document.toxml("utf-8")
685
1054
document.unlink()
686
1055
except (AttributeError, xml.dom.DOMException,
687
xml.parsers.expat.ExpatError), error:
688
logger.error(u"Failed to override Introspection method",
1056
xml.parsers.expat.ExpatError) as error:
1057
logger.error("Failed to override Introspection method",
690
1059
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"})
693
1252
class ClientDBus(Client, DBusObjectWithProperties):
694
1253
"""A Client class using D-Bus
704
1269
Client.__init__(self, *args, **kwargs)
705
1270
# Only now, when this client is initialized, can it show up on
707
self.dbus_object_path = (dbus.ObjectPath
709
+ self.name.replace(u".", u"_")))
1272
client_object_name = str(self.name).translate(
1273
{ord("."): ord("_"),
1274
ord("-"): ord("_")})
1275
self.dbus_object_path = dbus.ObjectPath(
1276
"/clients/" + client_object_name)
710
1277
DBusObjectWithProperties.__init__(self, self.bus,
711
1278
self.dbus_object_path)
714
def _datetime_to_dbus(dt, variant_level=0):
715
"""Convert a UTC datetime.datetime() to a D-Bus type."""
716
return dbus.String(dt.isoformat(),
717
variant_level=variant_level)
720
oldstate = getattr(self, u"enabled", False)
721
r = Client.enable(self)
722
if oldstate != self.enabled:
724
self.PropertyChanged(dbus.String(u"enabled"),
725
dbus.Boolean(True, variant_level=1))
726
self.PropertyChanged(
727
dbus.String(u"last_enabled"),
728
self._datetime_to_dbus(self.last_enabled,
732
def disable(self, quiet = False):
733
oldstate = getattr(self, u"enabled", False)
734
r = Client.disable(self, quiet=quiet)
735
if not quiet and oldstate != self.enabled:
737
self.PropertyChanged(dbus.String(u"enabled"),
738
dbus.Boolean(False, variant_level=1))
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
741
1361
def __del__(self, *args, **kwargs):
743
1363
self.remove_from_connection()
744
1364
except LookupError:
746
if hasattr(DBusObjectWithProperties, u"__del__"):
1366
if hasattr(DBusObjectWithProperties, "__del__"):
747
1367
DBusObjectWithProperties.__del__(self, *args, **kwargs)
748
1368
Client.__del__(self, *args, **kwargs)
750
def checker_callback(self, pid, condition, command,
752
self.checker_callback_tag = None
755
self.PropertyChanged(dbus.String(u"checker_running"),
756
dbus.Boolean(False, variant_level=1))
757
if os.WIFEXITED(condition):
758
exitstatus = os.WEXITSTATUS(condition)
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
759
1377
# Emit D-Bus signal
760
1378
self.CheckerCompleted(dbus.Int16(exitstatus),
761
dbus.Int64(condition),
762
1380
dbus.String(command))
764
1382
# Emit D-Bus signal
765
1383
self.CheckerCompleted(dbus.Int16(-1),
766
dbus.Int64(condition),
1385
self.last_checker_signal),
767
1386
dbus.String(command))
769
return Client.checker_callback(self, pid, condition, command,
772
def checked_ok(self, *args, **kwargs):
773
r = Client.checked_ok(self, *args, **kwargs)
775
self.PropertyChanged(
776
dbus.String(u"last_checked_ok"),
777
(self._datetime_to_dbus(self.last_checked_ok,
781
1389
def start_checker(self, *args, **kwargs):
782
old_checker = self.checker
783
if self.checker is not None:
784
old_checker_pid = self.checker.pid
786
old_checker_pid = None
1390
old_checker_pid = getattr(self.checker, "pid", None)
787
1391
r = Client.start_checker(self, *args, **kwargs)
788
1392
# Only if new checker process was started
789
1393
if (self.checker is not None
790
1394
and old_checker_pid != self.checker.pid):
791
1395
# Emit D-Bus signal
792
1396
self.CheckerStarted(self.current_checker_command)
793
self.PropertyChanged(
794
dbus.String(u"checker_running"),
795
dbus.Boolean(True, variant_level=1))
798
def stop_checker(self, *args, **kwargs):
799
old_checker = getattr(self, u"checker", None)
800
r = Client.stop_checker(self, *args, **kwargs)
801
if (old_checker is not None
802
and getattr(self, u"checker", None) is None):
803
self.PropertyChanged(dbus.String(u"checker_running"),
804
dbus.Boolean(False, variant_level=1))
807
1399
def _reset_approved(self):
808
self._approved = None
1400
self.approved = None
811
1403
def approve(self, value=True):
812
self._approved = value
813
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration, self._reset_approved))
815
def approved_pending(self):
816
return self.approvals_pending > 0
1404
self.approved = value
1405
gobject.timeout_add(int(self.approval_duration.total_seconds()
1406
* 1000), self._reset_approved)
1407
self.send_changedstate()
819
1409
## D-Bus methods, signals & properties
820
_interface = u"se.bsnet.fukt.Mandos.Client"
824
1415
# CheckerCompleted - signal
825
@dbus.service.signal(_interface, signature=u"nxs")
1416
@dbus.service.signal(_interface, signature="nxs")
826
1417
def CheckerCompleted(self, exitcode, waitstatus, command):
830
1421
# CheckerStarted - signal
831
@dbus.service.signal(_interface, signature=u"s")
1422
@dbus.service.signal(_interface, signature="s")
832
1423
def CheckerStarted(self, command):
836
1427
# PropertyChanged - signal
837
@dbus.service.signal(_interface, signature=u"sv")
1428
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1429
@dbus.service.signal(_interface, signature="sv")
838
1430
def PropertyChanged(self, property, value):
842
1434
# GotSecret - signal
843
# Is sent after succesfull transfer of secret from mandos-server to mandos-client
844
1435
@dbus.service.signal(_interface)
845
1436
def GotSecret(self):
1438
Is sent after a successful transfer of secret from the Mandos
1439
server to mandos-client
849
1443
# Rejected - signal
850
@dbus.service.signal(_interface, signature=u"s")
1444
@dbus.service.signal(_interface, signature="s")
851
1445
def Rejected(self, reason):
855
1449
# NeedApproval - signal
856
@dbus.service.signal(_interface, signature=u"db")
1450
@dbus.service.signal(_interface, signature="tb")
857
1451
def NeedApproval(self, timeout, default):
1453
return self.need_approval()
863
1457
# Approve - method
864
@dbus.service.method(_interface, in_signature=u"b")
1458
@dbus.service.method(_interface, in_signature="b")
865
1459
def Approve(self, value):
866
1460
self.approve(value)
868
1462
# CheckedOK - method
869
1463
@dbus.service.method(_interface)
870
1464
def CheckedOK(self):
871
return self.checked_ok()
873
1467
# Enable - method
874
1468
@dbus.service.method(_interface)
898
# approved_pending - property
899
@dbus_service_property(_interface, signature=u"b", access=u"read")
900
def approved_pending_dbus_property(self):
901
return dbus.Boolean(self.approved_pending())
903
# approved_by_default - property
904
@dbus_service_property(_interface, signature=u"b",
906
def approved_by_default_dbus_property(self):
907
return dbus.Boolean(self.approved_by_default)
909
# approved_delay - property
910
@dbus_service_property(_interface, signature=u"t",
912
def approved_delay_dbus_property(self):
913
return dbus.UInt64(self.approved_delay_milliseconds())
915
# approved_duration - property
916
@dbus_service_property(_interface, signature=u"t",
918
def approved_duration_dbus_property(self):
919
return dbus.UInt64(self._timedelta_to_milliseconds(
920
self.approved_duration))
923
@dbus_service_property(_interface, signature=u"s", access=u"read")
924
def name_dbus_property(self):
1492
# ApprovalPending - property
1493
@dbus_service_property(_interface, signature="b", access="read")
1494
def ApprovalPending_dbus_property(self):
1495
return dbus.Boolean(bool(self.approvals_pending))
1497
# ApprovedByDefault - property
1498
@dbus_service_property(_interface,
1501
def ApprovedByDefault_dbus_property(self, value=None):
1502
if value is None: # get
1503
return dbus.Boolean(self.approved_by_default)
1504
self.approved_by_default = bool(value)
1506
# ApprovalDelay - property
1507
@dbus_service_property(_interface,
1510
def ApprovalDelay_dbus_property(self, value=None):
1511
if value is None: # get
1512
return dbus.UInt64(self.approval_delay.total_seconds()
1514
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1516
# ApprovalDuration - property
1517
@dbus_service_property(_interface,
1520
def ApprovalDuration_dbus_property(self, value=None):
1521
if value is None: # get
1522
return dbus.UInt64(self.approval_duration.total_seconds()
1524
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1527
@dbus_service_property(_interface, signature="s", access="read")
1528
def Name_dbus_property(self):
925
1529
return dbus.String(self.name)
927
# fingerprint - property
928
@dbus_service_property(_interface, signature=u"s", access=u"read")
929
def fingerprint_dbus_property(self):
1531
# Fingerprint - property
1532
@dbus_service_property(_interface, signature="s", access="read")
1533
def Fingerprint_dbus_property(self):
930
1534
return dbus.String(self.fingerprint)
933
@dbus_service_property(_interface, signature=u"s",
935
def host_dbus_property(self, value=None):
1537
@dbus_service_property(_interface,
1540
def Host_dbus_property(self, value=None):
936
1541
if value is None: # get
937
1542
return dbus.String(self.host)
940
self.PropertyChanged(dbus.String(u"host"),
941
dbus.String(value, variant_level=1))
944
@dbus_service_property(_interface, signature=u"s", access=u"read")
945
def created_dbus_property(self):
946
return dbus.String(self._datetime_to_dbus(self.created))
948
# last_enabled - property
949
@dbus_service_property(_interface, signature=u"s", access=u"read")
950
def last_enabled_dbus_property(self):
951
if self.last_enabled is None:
952
return dbus.String(u"")
953
return dbus.String(self._datetime_to_dbus(self.last_enabled))
956
@dbus_service_property(_interface, signature=u"b",
958
def enabled_dbus_property(self, value=None):
1543
self.host = str(value)
1545
# Created - property
1546
@dbus_service_property(_interface, signature="s", access="read")
1547
def Created_dbus_property(self):
1548
return datetime_to_dbus(self.created)
1550
# LastEnabled - property
1551
@dbus_service_property(_interface, signature="s", access="read")
1552
def LastEnabled_dbus_property(self):
1553
return datetime_to_dbus(self.last_enabled)
1555
# Enabled - property
1556
@dbus_service_property(_interface,
1559
def Enabled_dbus_property(self, value=None):
959
1560
if value is None: # get
960
1561
return dbus.Boolean(self.enabled)
966
# last_checked_ok - property
967
@dbus_service_property(_interface, signature=u"s",
969
def last_checked_ok_dbus_property(self, value=None):
1567
# LastCheckedOK - property
1568
@dbus_service_property(_interface,
1571
def LastCheckedOK_dbus_property(self, value=None):
970
1572
if value is not None:
971
1573
self.checked_ok()
973
if self.last_checked_ok is None:
974
return dbus.String(u"")
975
return dbus.String(self._datetime_to_dbus(self
979
@dbus_service_property(_interface, signature=u"t",
981
def timeout_dbus_property(self, value=None):
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)
1587
# LastApprovalRequest - property
1588
@dbus_service_property(_interface, signature="s", access="read")
1589
def LastApprovalRequest_dbus_property(self):
1590
return datetime_to_dbus(self.last_approval_request)
1592
# Timeout - property
1593
@dbus_service_property(_interface,
1596
def Timeout_dbus_property(self, value=None):
982
1597
if value is None: # get
983
return dbus.UInt64(self.timeout_milliseconds())
1598
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1599
old_timeout = self.timeout
984
1600
self.timeout = datetime.timedelta(0, 0, 0, value)
986
self.PropertyChanged(dbus.String(u"timeout"),
987
dbus.UInt64(value, variant_level=1))
988
if getattr(self, u"disable_initiator_tag", None) is None:
991
gobject.source_remove(self.disable_initiator_tag)
992
self.disable_initiator_tag = None
994
_timedelta_to_milliseconds((self
1000
# The timeout has passed
1003
self.disable_initiator_tag = (gobject.timeout_add
1004
(time_to_die, self.disable))
1006
# interval - property
1007
@dbus_service_property(_interface, signature=u"t",
1008
access=u"readwrite")
1009
def interval_dbus_property(self, value=None):
1010
if value is None: # get
1011
return dbus.UInt64(self.interval_milliseconds())
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)
1627
# Interval - property
1628
@dbus_service_property(_interface,
1631
def Interval_dbus_property(self, value=None):
1632
if value is None: # get
1633
return dbus.UInt64(self.interval.total_seconds() * 1000)
1012
1634
self.interval = datetime.timedelta(0, 0, 0, value)
1014
self.PropertyChanged(dbus.String(u"interval"),
1015
dbus.UInt64(value, variant_level=1))
1016
if getattr(self, u"checker_initiator_tag", None) is None:
1635
if getattr(self, "checker_initiator_tag", None) is None:
1018
# Reschedule checker run
1019
gobject.source_remove(self.checker_initiator_tag)
1020
self.checker_initiator_tag = (gobject.timeout_add
1021
(value, self.start_checker))
1022
self.start_checker() # Start one now, too
1024
# checker - property
1025
@dbus_service_property(_interface, signature=u"s",
1026
access=u"readwrite")
1027
def checker_dbus_property(self, value=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
1644
# Checker - property
1645
@dbus_service_property(_interface,
1648
def Checker_dbus_property(self, value=None):
1028
1649
if value is None: # get
1029
1650
return dbus.String(self.checker_command)
1030
self.checker_command = value
1032
self.PropertyChanged(dbus.String(u"checker"),
1033
dbus.String(self.checker_command,
1651
self.checker_command = str(value)
1036
# checker_running - property
1037
@dbus_service_property(_interface, signature=u"b",
1038
access=u"readwrite")
1039
def checker_running_dbus_property(self, value=None):
1653
# CheckerRunning - property
1654
@dbus_service_property(_interface,
1657
def CheckerRunning_dbus_property(self, value=None):
1040
1658
if value is None: # get
1041
1659
return dbus.Boolean(self.checker is not None)
1093
1715
def handle(self):
1094
1716
with contextlib.closing(self.server.child_pipe) as child_pipe:
1095
logger.info(u"TCP connection from: %s",
1096
unicode(self.client_address))
1097
logger.debug(u"Pipe FD: %d",
1717
logger.info("TCP connection from: %s",
1718
str(self.client_address))
1719
logger.debug("Pipe FD: %d",
1098
1720
self.server.child_pipe.fileno())
1100
session = (gnutls.connection
1101
.ClientSession(self.request,
1103
.X509Credentials()))
1722
session = gnutls.connection.ClientSession(
1723
self.request, gnutls.connection .X509Credentials())
1105
1725
# Note: gnutls.connection.X509Credentials is really a
1106
1726
# generic GnuTLS certificate credentials object so long as
1107
1727
# no X.509 keys are added to it. Therefore, we can use it
1108
1728
# here despite using OpenPGP certificates.
1110
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1111
# u"+AES-256-CBC", u"+SHA1",
1112
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1730
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1731
# "+AES-256-CBC", "+SHA1",
1732
# "+COMP-NULL", "+CTYPE-OPENPGP",
1114
1734
# Use a fallback default, since this MUST be set.
1115
1735
priority = self.server.gnutls_priority
1116
1736
if priority is None:
1117
priority = u"NORMAL"
1118
(gnutls.library.functions
1119
.gnutls_priority_set_direct(session._c_object,
1738
gnutls.library.functions.gnutls_priority_set_direct(
1739
session._c_object, priority, None)
1122
1741
# Start communication using the Mandos protocol
1123
1742
# Get protocol number
1124
1743
line = self.request.makefile().readline()
1125
logger.debug(u"Protocol version: %r", line)
1744
logger.debug("Protocol version: %r", line)
1127
1746
if int(line.strip().split()[0]) > 1:
1129
except (ValueError, IndexError, RuntimeError), error:
1130
logger.error(u"Unknown protocol version: %s", error)
1747
raise RuntimeError(line)
1748
except (ValueError, IndexError, RuntimeError) as error:
1749
logger.error("Unknown protocol version: %s", error)
1133
1752
# Start GnuTLS connection
1135
1754
session.handshake()
1136
except gnutls.errors.GNUTLSError, error:
1137
logger.warning(u"Handshake failed: %s", error)
1755
except gnutls.errors.GNUTLSError as error:
1756
logger.warning("Handshake failed: %s", error)
1138
1757
# Do not run session.bye() here: the session is not
1139
1758
# established. Just abandon the request.
1141
logger.debug(u"Handshake succeeded")
1760
logger.debug("Handshake succeeded")
1143
1762
approval_required = False
1146
fpr = self.fingerprint(self.peer_certificate
1148
except (TypeError, gnutls.errors.GNUTLSError), error:
1149
logger.warning(u"Bad certificate: %s", error)
1765
fpr = self.fingerprint(
1766
self.peer_certificate(session))
1768
gnutls.errors.GNUTLSError) as error:
1769
logger.warning("Bad certificate: %s", error)
1151
logger.debug(u"Fingerprint: %s", fpr)
1771
logger.debug("Fingerprint: %s", fpr)
1154
1774
client = ProxyClient(child_pipe, fpr,
1155
1775
self.client_address)
1156
1776
except KeyError:
1159
if client.approved_delay:
1160
delay = client.approved_delay
1779
if client.approval_delay:
1780
delay = client.approval_delay
1161
1781
client.approvals_pending += 1
1162
1782
approval_required = True
1165
1785
if not client.enabled:
1166
logger.warning(u"Client %s is disabled",
1786
logger.info("Client %s is disabled",
1168
1788
if self.server.use_dbus:
1169
1789
# Emit D-Bus signal
1170
client.Rejected("Disabled")
1790
client.Rejected("Disabled")
1173
if client._approved or not client.approved_delay:
1793
if client.approved or not client.approval_delay:
1174
1794
#We are approved or approval is disabled
1176
elif client._approved is None:
1177
logger.info(u"Client %s need approval",
1796
elif client.approved is None:
1797
logger.info("Client %s needs approval",
1179
1799
if self.server.use_dbus:
1180
1800
# Emit D-Bus signal
1181
1801
client.NeedApproval(
1182
client.approved_delay_milliseconds(),
1183
client.approved_by_default)
1802
client.approval_delay.total_seconds()
1803
* 1000, client.approved_by_default)
1185
logger.warning(u"Client %s was not approved",
1805
logger.warning("Client %s was not approved",
1187
1807
if self.server.use_dbus:
1188
1808
# Emit D-Bus signal
1189
client.Rejected("Disapproved")
1809
client.Rejected("Denied")
1192
1812
#wait until timeout or approved
1193
#x = float(client._timedelta_to_milliseconds(delay))
1194
1813
time = datetime.datetime.now()
1195
1814
client.changedstate.acquire()
1196
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1815
client.changedstate.wait(delay.total_seconds())
1197
1816
client.changedstate.release()
1198
1817
time2 = datetime.datetime.now()
1199
1818
if (time2 - time) >= delay:
1256
1883
def fingerprint(openpgp):
1257
1884
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1258
1885
# New GnuTLS "datum" with the OpenPGP public key
1259
datum = (gnutls.library.types
1260
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1263
ctypes.c_uint(len(openpgp))))
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)))
1264
1890
# New empty GnuTLS certificate
1265
1891
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1266
(gnutls.library.functions
1267
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1892
gnutls.library.functions.gnutls_openpgp_crt_init(
1268
1894
# Import the OpenPGP public key into the certificate
1269
(gnutls.library.functions
1270
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1271
gnutls.library.constants
1272
.GNUTLS_OPENPGP_FMT_RAW))
1895
gnutls.library.functions.gnutls_openpgp_crt_import(
1896
crt, ctypes.byref(datum),
1897
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1273
1898
# Verify the self signature in the key
1274
1899
crtverify = ctypes.c_uint()
1275
(gnutls.library.functions
1276
.gnutls_openpgp_crt_verify_self(crt, 0,
1277
ctypes.byref(crtverify)))
1900
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1901
crt, 0, ctypes.byref(crtverify))
1278
1902
if crtverify.value != 0:
1279
1903
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1280
raise (gnutls.errors.CertificateSecurityError
1904
raise gnutls.errors.CertificateSecurityError(
1282
1906
# New buffer for the fingerprint
1283
1907
buf = ctypes.create_string_buffer(20)
1284
1908
buf_len = ctypes.c_size_t()
1285
1909
# Get the fingerprint from the certificate into the buffer
1286
(gnutls.library.functions
1287
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1288
ctypes.byref(buf_len)))
1910
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1911
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1289
1912
# Deinit the certificate
1290
1913
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1291
1914
# Convert the buffer to a Python bytestring
1292
1915
fpr = ctypes.string_at(buf, buf_len.value)
1293
1916
# Convert the bytestring to hexadecimal notation
1294
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1917
hex_fpr = binascii.hexlify(fpr).upper()
1298
1921
class MultiprocessingMixIn(object):
1299
1922
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1300
1924
def sub_process_main(self, request, address):
1302
1926
self.finish_request(request, address)
1304
1928
self.handle_error(request, address)
1305
1929
self.close_request(request)
1307
1931
def process_request(self, request, address):
1308
1932
"""Start a new process to process the request."""
1309
multiprocessing.Process(target = self.sub_process_main,
1310
args = (request, address)).start()
1933
proc = multiprocessing.Process(target = self.sub_process_main,
1934
args = (request, address))
1312
1939
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1313
1940
""" adds a pipe to the MixIn """
1314
1942
def process_request(self, request, client_address):
1315
1943
"""Overrides and wraps the original process_request().
1317
1945
This function creates a new pipe in self.pipe
1319
1947
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1321
super(MultiprocessingMixInWithPipe,
1322
self).process_request(request, client_address)
1949
proc = MultiprocessingMixIn.process_request(self, request,
1323
1951
self.child_pipe.close()
1324
self.add_pipe(parent_pipe)
1326
def add_pipe(self, parent_pipe):
1952
self.add_pipe(parent_pipe, proc)
1954
def add_pipe(self, parent_pipe, proc):
1327
1955
"""Dummy function; override as necessary"""
1956
raise NotImplementedError()
1330
1959
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1331
1960
socketserver.TCPServer, object):
1401
2063
Assumes a gobject.MainLoop event loop.
1403
2066
def __init__(self, server_address, RequestHandlerClass,
1404
interface=None, use_ipv6=True, clients=None,
1405
gnutls_priority=None, use_dbus=True):
2070
gnutls_priority=None,
1406
2073
self.enabled = False
1407
2074
self.clients = clients
1408
2075
if self.clients is None:
1409
self.clients = set()
1410
2077
self.use_dbus = use_dbus
1411
2078
self.gnutls_priority = gnutls_priority
1412
2079
IPv6_TCPServer.__init__(self, server_address,
1413
2080
RequestHandlerClass,
1414
2081
interface = interface,
1415
use_ipv6 = use_ipv6)
2082
use_ipv6 = use_ipv6,
2083
socketfd = socketfd)
1416
2085
def server_activate(self):
1417
2086
if self.enabled:
1418
2087
return socketserver.TCPServer.server_activate(self)
1419
2089
def enable(self):
1420
2090
self.enabled = True
1421
def add_pipe(self, parent_pipe):
2092
def add_pipe(self, parent_pipe, proc):
1422
2093
# Call "handle_ipc" for both data and EOF events
1423
gobject.io_add_watch(parent_pipe.fileno(),
1424
gobject.IO_IN | gobject.IO_HUP,
1425
functools.partial(self.handle_ipc,
1426
parent_pipe = parent_pipe))
1428
def handle_ipc(self, source, condition, parent_pipe=None,
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,
1429
2104
client_object=None):
1431
gobject.IO_IN: u"IN", # There is data to read.
1432
gobject.IO_OUT: u"OUT", # Data can be written (without
1434
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1435
gobject.IO_ERR: u"ERR", # Error condition.
1436
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1437
# broken, usually for pipes and
1440
conditions_string = ' | '.join(name
1442
condition_names.iteritems()
1443
if cond & condition)
1444
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1447
# error or the other end of multiprocessing.Pipe has closed
1448
if condition & gobject.IO_HUP or condition & gobject.IO_ERR:
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
1451
2111
# Read a request from the child
1452
2112
request = parent_pipe.recv()
1453
logger.debug(u"IPC request: %s", repr(request))
1454
2113
command = request[0]
1456
2115
if command == 'init':
1457
2116
fpr = request[1]
1458
2117
address = request[2]
1460
for c in self.clients:
2119
for c in self.clients.itervalues():
1461
2120
if c.fingerprint == fpr:
1465
logger.warning(u"Client not found for fingerprint: %s, ad"
1466
u"dress: %s", fpr, address)
2124
logger.info("Client not found for fingerprint: %s, ad"
2125
"dress: %s", fpr, address)
1467
2126
if self.use_dbus:
1468
2127
# Emit D-Bus signal
1469
mandos_dbus_service.ClientNotFound(fpr, address)
2128
mandos_dbus_service.ClientNotFound(fpr,
1470
2130
parent_pipe.send(False)
1473
gobject.io_add_watch(parent_pipe.fileno(),
1474
gobject.IO_IN | gobject.IO_HUP,
1475
functools.partial(self.handle_ipc,
1476
parent_pipe = parent_pipe,
1477
client_object = client))
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))
1478
2140
parent_pipe.send(True)
1479
# remove the old hook in favor of the new above hook on same fileno
2141
# remove the old hook in favor of the new above hook on
1481
2144
if command == 'funcall':
1482
2145
funcname = request[1]
1483
2146
args = request[2]
1484
2147
kwargs = request[3]
1486
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2149
parent_pipe.send(('data', getattr(client_object,
1488
2153
if command == 'getattr':
1489
2154
attrname = request[1]
1490
if callable(client_object.__getattribute__(attrname)):
1491
parent_pipe.send(('function',))
2155
if isinstance(client_object.__getattribute__(attrname),
2156
collections.Callable):
2157
parent_pipe.send(('function', ))
1493
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2160
'data', client_object.__getattribute__(attrname)))
1495
2162
if command == 'setattr':
1496
2163
attrname = request[1]
1497
2164
value = request[2]
1498
2165
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}"
1503
2266
def string_to_delta(interval):
1504
2267
"""Parse a string and return a datetime.timedelta
1506
>>> string_to_delta(u'7d')
2269
>>> string_to_delta('7d')
1507
2270
datetime.timedelta(7)
1508
>>> string_to_delta(u'60s')
2271
>>> string_to_delta('60s')
1509
2272
datetime.timedelta(0, 60)
1510
>>> string_to_delta(u'60m')
2273
>>> string_to_delta('60m')
1511
2274
datetime.timedelta(0, 3600)
1512
>>> string_to_delta(u'24h')
2275
>>> string_to_delta('24h')
1513
2276
datetime.timedelta(1)
1514
>>> string_to_delta(u'1w')
2277
>>> string_to_delta('1w')
1515
2278
datetime.timedelta(7)
1516
>>> string_to_delta(u'5m 30s')
2279
>>> string_to_delta('5m 30s')
1517
2280
datetime.timedelta(0, 330)
2284
return rfc3339_duration_to_delta(interval)
1519
2288
timevalue = datetime.timedelta(0)
1520
2289
for s in interval.split():
1522
suffix = unicode(s[-1])
1523
2292
value = int(s[:-1])
1525
2294
delta = datetime.timedelta(value)
1526
elif suffix == u"s":
1527
2296
delta = datetime.timedelta(0, value)
1528
elif suffix == u"m":
1529
2298
delta = datetime.timedelta(0, 0, 0, 0, value)
1530
elif suffix == u"h":
1531
2300
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1532
elif suffix == u"w":
1533
2302
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1535
raise ValueError(u"Unknown suffix %r" % suffix)
1536
except (ValueError, IndexError), e:
1537
raise ValueError(e.message)
2304
raise ValueError("Unknown suffix {!r}".format(suffix))
2305
except IndexError as e:
2306
raise ValueError(*(e.args))
1538
2307
timevalue += delta
1539
2308
return timevalue
1542
def if_nametoindex(interface):
1543
"""Call the C function if_nametoindex(), or equivalent
1545
Note: This function cannot accept a unicode string."""
1546
global if_nametoindex
1548
if_nametoindex = (ctypes.cdll.LoadLibrary
1549
(ctypes.util.find_library(u"c"))
1551
except (OSError, AttributeError):
1552
logger.warning(u"Doing if_nametoindex the hard way")
1553
def if_nametoindex(interface):
1554
"Get an interface index the hard way, i.e. using fcntl()"
1555
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1556
with contextlib.closing(socket.socket()) as s:
1557
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1558
struct.pack(str(u"16s16x"),
1560
interface_index = struct.unpack(str(u"I"),
1562
return interface_index
1563
return if_nametoindex(interface)
1566
2311
def daemon(nochdir = False, noclose = False):
1567
2312
"""See daemon(3). Standard BSD Unix function.
1593
2338
##################################################################
1594
2339
# Parsing of options, both command line and config file
1596
parser = optparse.OptionParser(version = "%%prog %s" % version)
1597
parser.add_option("-i", u"--interface", type=u"string",
1598
metavar="IF", help=u"Bind to interface IF")
1599
parser.add_option("-a", u"--address", type=u"string",
1600
help=u"Address to listen for requests on")
1601
parser.add_option("-p", u"--port", type=u"int",
1602
help=u"Port number to receive requests on")
1603
parser.add_option("--check", action=u"store_true",
1604
help=u"Run self-test")
1605
parser.add_option("--debug", action=u"store_true",
1606
help=u"Debug mode; run in foreground and log to"
1608
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1609
u" priority string (see GnuTLS documentation)")
1610
parser.add_option("--servicename", type=u"string",
1611
metavar=u"NAME", help=u"Zeroconf service name")
1612
parser.add_option("--configdir", type=u"string",
1613
default=u"/etc/mandos", metavar=u"DIR",
1614
help=u"Directory to search for configuration"
1616
parser.add_option("--no-dbus", action=u"store_false",
1617
dest=u"use_dbus", help=u"Do not provide D-Bus"
1618
u" system bus interface")
1619
parser.add_option("--no-ipv6", action=u"store_false",
1620
dest=u"use_ipv6", help=u"Do not use IPv6")
1621
options = parser.parse_args()[0]
2341
parser = argparse.ArgumentParser()
2342
parser.add_argument("-v", "--version", action="version",
2343
version = "%(prog)s {}".format(version),
2344
help="show version number and exit")
2345
parser.add_argument("-i", "--interface", metavar="IF",
2346
help="Bind to interface IF")
2347
parser.add_argument("-a", "--address",
2348
help="Address to listen for requests on")
2349
parser.add_argument("-p", "--port", type=int,
2350
help="Port number to receive requests on")
2351
parser.add_argument("--check", action="store_true",
2352
help="Run self-test")
2353
parser.add_argument("--debug", action="store_true",
2354
help="Debug mode; run in foreground and log"
2355
" to terminal", default=None)
2356
parser.add_argument("--debuglevel", metavar="LEVEL",
2357
help="Debug level for stdout output")
2358
parser.add_argument("--priority", help="GnuTLS"
2359
" priority string (see GnuTLS documentation)")
2360
parser.add_argument("--servicename",
2361
metavar="NAME", help="Zeroconf service name")
2362
parser.add_argument("--configdir",
2363
default="/etc/mandos", metavar="DIR",
2364
help="Directory to search for configuration"
2366
parser.add_argument("--no-dbus", action="store_false",
2367
dest="use_dbus", help="Do not provide D-Bus"
2368
" system bus interface", default=None)
2369
parser.add_argument("--no-ipv6", action="store_false",
2370
dest="use_ipv6", help="Do not use IPv6",
2372
parser.add_argument("--no-restore", action="store_false",
2373
dest="restore", help="Do not restore stored"
2374
" state", default=None)
2375
parser.add_argument("--socket", type=int,
2376
help="Specify a file descriptor to a network"
2377
" socket to use instead of creating one")
2378
parser.add_argument("--statedir", metavar="DIR",
2379
help="Directory to save/restore state in")
2380
parser.add_argument("--foreground", action="store_true",
2381
help="Run in foreground", default=None)
2382
parser.add_argument("--no-zeroconf", action="store_false",
2383
dest="zeroconf", help="Do not use Zeroconf",
2386
options = parser.parse_args()
1623
2388
if options.check:
2390
fail_count, test_count = doctest.testmod()
2391
sys.exit(os.EX_OK if fail_count == 0 else 1)
1628
2393
# Default values for config file for server-global settings
1629
server_defaults = { u"interface": u"",
1634
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1635
u"servicename": u"Mandos",
1636
u"use_dbus": u"True",
1637
u"use_ipv6": u"True",
2394
server_defaults = { "interface": "",
2399
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2400
":+SIGN-DSA-SHA256",
2401
"servicename": "Mandos",
2407
"statedir": "/var/lib/mandos",
2408
"foreground": "False",
1640
2412
# Parse config file for server-global settings
1641
2413
server_config = configparser.SafeConfigParser(server_defaults)
1642
2414
del server_defaults
1643
server_config.read(os.path.join(options.configdir,
2415
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1645
2416
# Convert the SafeConfigParser object to a dict
1646
2417
server_settings = server_config.defaults()
1647
2418
# Use the appropriate methods on the non-string config options
1648
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1649
server_settings[option] = server_config.getboolean(u"DEFAULT",
2419
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2420
server_settings[option] = server_config.getboolean("DEFAULT",
1651
2422
if server_settings["port"]:
1652
server_settings["port"] = server_config.getint(u"DEFAULT",
2423
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
1654
2434
del server_config
1656
2436
# Override the settings from the config file with command line
1657
2437
# options, if set.
1658
for option in (u"interface", u"address", u"port", u"debug",
1659
u"priority", u"servicename", u"configdir",
1660
u"use_dbus", u"use_ipv6"):
2438
for option in ("interface", "address", "port", "debug",
2439
"priority", "servicename", "configdir", "use_dbus",
2440
"use_ipv6", "debuglevel", "restore", "statedir",
2441
"socket", "foreground", "zeroconf"):
1661
2442
value = getattr(options, option)
1662
2443
if value is not None:
1663
2444
server_settings[option] = value
1665
2446
# Force all strings to be unicode
1666
2447
for option in server_settings.keys():
1667
if type(server_settings[option]) is str:
1668
server_settings[option] = unicode(server_settings[option])
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
1669
2458
# Now we have our good server settings in "server_settings"
1671
2460
##################################################################
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")
1673
2467
# For convenience
1674
debug = server_settings[u"debug"]
1675
use_dbus = server_settings[u"use_dbus"]
1676
use_ipv6 = server_settings[u"use_ipv6"]
1679
syslogger.setLevel(logging.WARNING)
1680
console.setLevel(logging.WARNING)
1682
if server_settings[u"servicename"] != u"Mandos":
1683
syslogger.setFormatter(logging.Formatter
1684
(u'Mandos (%s) [%%(process)d]:'
1685
u' %%(levelname)s: %%(message)s'
1686
% server_settings[u"servicename"]))
2468
debug = server_settings["debug"]
2469
debuglevel = server_settings["debuglevel"]
2470
use_dbus = server_settings["use_dbus"]
2471
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
if server_settings["servicename"] != "Mandos":
2487
syslogger.setFormatter(
2488
logging.Formatter('Mandos ({}) [%(process)d]:'
2489
' %(levelname)s: %(message)s'.format(
2490
server_settings["servicename"])))
1688
2492
# Parse config file with clients
1689
client_defaults = { u"timeout": u"1h",
1691
u"checker": u"fping -q -- %%(host)s",
1693
u"approved_delay": u"5m",
1694
u"approved_duration": u"1s",
1696
client_config = configparser.SafeConfigParser(client_defaults)
1697
client_config.read(os.path.join(server_settings[u"configdir"],
2493
client_config = configparser.SafeConfigParser(Client
2495
client_config.read(os.path.join(server_settings["configdir"],
1700
2498
global mandos_dbus_service
1701
2499
mandos_dbus_service = None
1703
tcp_server = MandosServer((server_settings[u"address"],
1704
server_settings[u"port"]),
1706
interface=server_settings[u"interface"],
1709
server_settings[u"priority"],
1711
pidfilename = u"/var/run/mandos.pid"
1713
pidfile = open(pidfilename, u"w")
1715
logger.error(u"Could not open file %r", pidfilename)
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"
2518
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2519
except IOError as e:
2520
logger.error("Could not open file %r", pidfilename,
1718
uid = pwd.getpwnam(u"_mandos").pw_uid
1719
gid = pwd.getpwnam(u"_mandos").pw_gid
2523
for name in ("_mandos", "mandos", "nobody"):
1722
uid = pwd.getpwnam(u"mandos").pw_uid
1723
gid = pwd.getpwnam(u"mandos").pw_gid
2525
uid = pwd.getpwnam(name).pw_uid
2526
gid = pwd.getpwnam(name).pw_gid
1724
2528
except KeyError:
1726
uid = pwd.getpwnam(u"nobody").pw_uid
1727
gid = pwd.getpwnam(u"nobody").pw_gid
1734
except OSError, error:
1735
if error[0] != errno.EPERM:
2536
except OSError as error:
2537
if error.errno != errno.EPERM:
1738
# Enable all possible GnuTLS debugging
2541
# Enable all possible GnuTLS debugging
1740
2543
# "Use a log level over 10 to enable all debugging options."
1741
2544
# - GnuTLS manual
1742
2545
gnutls.library.functions.gnutls_global_set_log_level(11)
1744
2547
@gnutls.library.types.gnutls_log_func
1745
2548
def debug_gnutls(level, string):
1746
logger.debug(u"GnuTLS: %s", string[:-1])
1748
(gnutls.library.functions
1749
.gnutls_global_set_log_function(debug_gnutls))
2549
logger.debug("GnuTLS: %s", string[:-1])
2551
gnutls.library.functions.gnutls_global_set_log_function(
2554
# Redirect stdin so all checkers get /dev/null
2555
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2556
os.dup2(null, sys.stdin.fileno())
2560
# Need to fork before connecting to D-Bus
2562
# 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()
1751
2569
global main_loop
1752
2570
# From the Avahi example code
1753
DBusGMainLoop(set_as_default=True )
2571
DBusGMainLoop(set_as_default=True)
1754
2572
main_loop = gobject.MainLoop()
1755
2573
bus = dbus.SystemBus()
1756
2574
# End of Avahi example code
1759
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1760
bus, do_not_queue=True)
1761
except dbus.exceptions.NameExistsException, e:
1762
logger.error(unicode(e) + u", disabling D-Bus")
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)
1763
2585
use_dbus = False
1764
server_settings[u"use_dbus"] = False
2586
server_settings["use_dbus"] = False
1765
2587
tcp_server.use_dbus = False
1766
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1767
service = AvahiService(name = server_settings[u"servicename"],
1768
servicetype = u"_mandos._tcp",
1769
protocol = protocol, bus = bus)
1770
if server_settings["interface"]:
1771
service.interface = (if_nametoindex
1772
(str(server_settings[u"interface"])))
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"))
1774
2599
global multiprocessing_manager
1775
2600
multiprocessing_manager = multiprocessing.Manager()
1777
2602
client_class = Client
1779
2604
client_class = functools.partial(ClientDBus, bus = bus)
1780
def client_config_items(config, section):
1781
special_settings = {
1782
"approved_by_default":
1783
lambda: config.getboolean(section,
1784
"approved_by_default"),
1786
for name, value in config.items(section):
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(
1788
yield (name, special_settings[name]())
1792
tcp_server.clients.update(set(
1793
client_class(name = section,
1794
config= dict(client_config_items(
1795
client_config, section)))
1796
for section in client_config.sections()))
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)
1797
2715
if not tcp_server.clients:
1798
logger.warning(u"No clients defined")
1801
# Redirect stdin so all checkers get /dev/null
1802
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1803
os.dup2(null, sys.stdin.fileno())
1807
# No console logging
1808
logger.removeHandler(console)
1809
# Close all input and output, do double fork, etc.
2716
logger.warning("No clients defined")
2719
if pidfile is not None:
1814
2720
pid = os.getpid()
1815
pidfile.write(str(pid) + "\n")
2723
print(pid, file=pidfile)
2725
logger.error("Could not write to file %r with PID %d",
1818
logger.error(u"Could not write to file %r with PID %d",
1821
# "pidfile" was never created
1826
signal.signal(signal.SIGINT, signal.SIG_IGN)
1827
2730
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1828
2731
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1831
class MandosDBusService(dbus.service.Object):
2735
@alternate_dbus_interfaces(
2736
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2737
class MandosDBusService(DBusObjectWithProperties):
1832
2738
"""A D-Bus proxy object"""
1833
2740
def __init__(self):
1834
dbus.service.Object.__init__(self, bus, u"/")
1835
_interface = u"se.bsnet.fukt.Mandos"
1837
@dbus.service.signal(_interface, signature=u"o")
2741
dbus.service.Object.__init__(self, bus, "/")
2743
_interface = "se.recompile.Mandos"
2745
@dbus_interface_annotations(_interface)
2748
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2751
@dbus.service.signal(_interface, signature="o")
1838
2752
def ClientAdded(self, objpath):
1842
@dbus.service.signal(_interface, signature=u"ss")
2756
@dbus.service.signal(_interface, signature="ss")
1843
2757
def ClientNotFound(self, fingerprint, address):
1847
@dbus.service.signal(_interface, signature=u"os")
2761
@dbus.service.signal(_interface, signature="os")
1848
2762
def ClientRemoved(self, objpath, name):
1852
@dbus.service.method(_interface, out_signature=u"ao")
2766
@dbus.service.method(_interface, out_signature="ao")
1853
2767
def GetAllClients(self):
1855
return dbus.Array(c.dbus_object_path
1856
for c in tcp_server.clients)
2769
return dbus.Array(c.dbus_object_path for c in
2770
tcp_server.clients.itervalues())
1858
2772
@dbus.service.method(_interface,
1859
out_signature=u"a{oa{sv}}")
2773
out_signature="a{oa{sv}}")
1860
2774
def GetAllClientsWithProperties(self):
1862
2776
return dbus.Dictionary(
1863
((c.dbus_object_path, c.GetAll(u""))
1864
for c in tcp_server.clients),
1865
signature=u"oa{sv}")
2777
{ c.dbus_object_path: c.GetAll("")
2778
for c in tcp_server.clients.itervalues() },
1867
@dbus.service.method(_interface, in_signature=u"o")
2781
@dbus.service.method(_interface, in_signature="o")
1868
2782
def RemoveClient(self, object_path):
1870
for c in tcp_server.clients:
2784
for c in tcp_server.clients.itervalues():
1871
2785
if c.dbus_object_path == object_path:
1872
tcp_server.clients.remove(c)
2786
del tcp_server.clients[c.name]
1873
2787
c.remove_from_connection()
1874
2788
# Don't signal anything except ClientRemoved
1875
2789
c.disable(quiet=True)
1886
2800
"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
1889
2862
while tcp_server.clients:
1890
client = tcp_server.clients.pop()
2863
name, client = tcp_server.clients.popitem()
1892
2865
client.remove_from_connection()
1893
client.disable_hook = None
1894
2866
# Don't signal anything except ClientRemoved
1895
2867
client.disable(quiet=True)
1897
2869
# Emit D-Bus signal
1898
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2870
mandos_dbus_service.ClientRemoved(
2871
client.dbus_object_path, client.name)
2872
client_settings.clear()
1901
2874
atexit.register(cleanup)
1903
for client in tcp_server.clients:
2876
for client in tcp_server.clients.itervalues():
1905
2878
# Emit D-Bus signal
1906
2879
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2880
# Need to initiate checking of clients
2882
client.init_checker()
1909
2884
tcp_server.enable()
1910
2885
tcp_server.server_activate()
1912
2887
# Find out what port we got
1913
service.port = tcp_server.socket.getsockname()[1]
2889
service.port = tcp_server.socket.getsockname()[1]
1915
logger.info(u"Now listening on address %r, port %d,"
1916
" flowinfo %d, scope_id %d"
1917
% tcp_server.socket.getsockname())
2891
logger.info("Now listening on address %r, port %d,"
2892
" flowinfo %d, scope_id %d",
2893
*tcp_server.socket.getsockname())
1919
logger.info(u"Now listening on address %r, port %d"
1920
% tcp_server.socket.getsockname())
2895
logger.info("Now listening on address %r, port %d",
2896
*tcp_server.socket.getsockname())
1922
2898
#service.interface = tcp_server.socket.getsockname()[3]
1925
# From the Avahi example code
1928
except dbus.exceptions.DBusException, error:
1929
logger.critical(u"DBusException: %s", error)
1932
# End of Avahi example code
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
1934
2911
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1935
2912
lambda *args, **kwargs:
1936
2913
(tcp_server.handle_request
1937
2914
(*args[2:], **kwargs) or True))
1939
logger.debug(u"Starting main loop")
2916
logger.debug("Starting main loop")
1940
2917
main_loop.run()
1941
except AvahiError, error:
1942
logger.critical(u"AvahiError: %s", error)
2918
except AvahiError as error:
2919
logger.critical("Avahi Error", exc_info=error)
1945
2922
except KeyboardInterrupt:
1948
logger.debug(u"Server received KeyboardInterrupt")
1949
logger.debug(u"Server exiting")
2924
print("", file=sys.stderr)
2925
logger.debug("Server received KeyboardInterrupt")
2926
logger.debug("Server exiting")
1950
2927
# Must run before the D-Bus bus name gets deregistered
1953
2931
if __name__ == '__main__':