85
80
except ImportError:
86
81
SO_BINDTODEVICE = None
89
stored_state_file = "clients.pickle"
91
logger = logging.getLogger()
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
92
88
syslogger = (logging.handlers.SysLogHandler
93
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
100
except (OSError, AttributeError):
101
def if_nametoindex(interface):
102
"Get an interface index the hard way, i.e. using fcntl()"
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
with contextlib.closing(socket.socket()) as s:
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
108
interface_index = struct.unpack(str("I"),
110
return interface_index
113
def initlogger(debug, level=logging.WARNING):
114
"""init logger and add loglevel"""
116
syslogger.setFormatter(logging.Formatter
117
('Mandos [%(process)d]: %(levelname)s:'
119
logger.addHandler(syslogger)
122
console = logging.StreamHandler()
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
127
logger.addHandler(console)
128
logger.setLevel(level)
131
class PGPError(Exception):
132
"""Exception if encryption/decryption fails"""
136
class PGPEngine(object):
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
139
self.gnupg = GnuPGInterface.GnuPG()
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
151
def __exit__ (self, exc_type, exc_value, traceback):
159
if self.tempdir is not None:
160
# Delete contents of tempdir
161
for root, dirs, files in os.walk(self.tempdir,
163
for filename in files:
164
os.remove(os.path.join(root, filename))
166
os.rmdir(os.path.join(root, dirname))
168
os.rmdir(self.tempdir)
171
def password_encode(self, password):
172
# Passphrase can not be empty and can not contain newlines or
173
# NUL bytes. So we prefix it and hex encode it.
174
return b"mandos" + binascii.hexlify(password)
176
def encrypt(self, data, password):
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
190
self.gnupg.passphrase = None
193
def decrypt(self, data, password):
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
207
self.gnupg.passphrase = None
208
return decrypted_plaintext
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
94
logger.addHandler(syslogger)
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
100
logger.addHandler(console)
212
102
class AvahiError(Exception):
213
103
def __init__(self, value, *args, **kwargs):
311
199
self.group.Commit()
312
200
def entry_group_state_changed(self, state, error):
313
201
"""Derived from the Avahi example code"""
314
logger.debug("Avahi entry group state change: %i", state)
202
logger.debug(u"Avahi entry group state change: %i", state)
316
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
317
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
318
206
elif state == avahi.ENTRY_GROUP_COLLISION:
319
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
321
209
elif state == avahi.ENTRY_GROUP_FAILURE:
322
logger.critical("Avahi: Error in group state changed %s",
210
logger.critical(u"Avahi: Error in group state changed %s",
324
raise AvahiGroupError("State changed: %s"
212
raise AvahiGroupError(u"State changed: %s"
325
213
% unicode(error))
326
214
def cleanup(self):
327
215
"""Derived from the Avahi example code"""
328
216
if self.group is not None:
331
except (dbus.exceptions.UnknownMethodException,
332
dbus.exceptions.DBusException):
334
218
self.group = None
336
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
337
220
"""Derived from the Avahi example code"""
338
logger.debug("Avahi server state change: %i", state)
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
346
if state in bad_states:
347
if bad_states[state] is not None:
349
logger.error(bad_states[state])
351
logger.error(bad_states[state] + ": %r", error)
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
353
225
elif state == avahi.SERVER_RUNNING:
357
logger.debug("Unknown state: %r", state)
359
logger.debug("Unknown state: %r: %r", state, error)
360
227
def activate(self):
361
228
"""Derived from the Avahi example code"""
362
229
if self.server is None:
363
230
self.server = dbus.Interface(
364
231
self.bus.get_object(avahi.DBUS_NAME,
365
avahi.DBUS_PATH_SERVER,
366
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
367
233
avahi.DBUS_INTERFACE_SERVER)
368
self.server.connect_to_signal("StateChanged",
234
self.server.connect_to_signal(u"StateChanged",
369
235
self.server_state_changed)
370
236
self.server_state_changed(self.server.GetState())
372
class AvahiServiceToSyslog(AvahiService):
374
"""Add the new name to the syslog messages"""
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
388
239
class Client(object):
389
240
"""A representation of a client host served by this server.
392
approved: bool(); 'None' if not yet approved/disapproved
393
approval_delay: datetime.timedelta(); Time to wait for approval
394
approval_duration: datetime.timedelta(); Duration of one approval
243
name: string; from the config file, used in log messages and
245
fingerprint: string (40 or 32 hexadecimal digits); used to
246
uniquely identify the client
247
secret: bytestring; sent verbatim (over TLS) to client
248
host: string; available for use by the checker command
249
created: datetime.datetime(); (UTC) object creation
250
last_enabled: datetime.datetime(); (UTC)
252
last_checked_ok: datetime.datetime(); (UTC) or None
253
timeout: datetime.timedelta(); How long from last_checked_ok
254
until this client is disabled
255
interval: datetime.timedelta(); How often to start a new checker
256
disable_hook: If set, called by disable() as disable_hook(self)
395
257
checker: subprocess.Popen(); a running checker process used
396
258
to see if the client lives.
397
259
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
399
checker_command: string; External command which is run to check
400
if client lives. %() expansions are done at
260
checker_initiator_tag: a gobject event source tag, or None
261
disable_initiator_tag: - '' -
262
checker_callback_tag: - '' -
263
checker_command: string; External command which is run to check if
264
client lives. %() expansions are done at
401
265
runtime with vars(self) as dict, so that for
402
266
instance %(name)s can be used in the command.
403
checker_initiator_tag: a gobject event source tag, or None
404
created: datetime.datetime(); (UTC) object creation
405
client_structure: Object describing what attributes a client has
406
and is used for storing the client at exit
407
267
current_checker_command: string; current running checker_command
408
disable_initiator_tag: a gobject event source tag, or None
410
fingerprint: string (40 or 32 hexadecimal digits); used to
411
uniquely identify the client
412
host: string; available for use by the checker command
413
interval: datetime.timedelta(); How often to start a new checker
414
last_approval_request: datetime.datetime(); (UTC) or None
415
last_checked_ok: datetime.datetime(); (UTC) or None
416
last_checker_status: integer between 0 and 255 reflecting exit
417
status of last checker. -1 reflects crashed
418
checker, -2 means no checker completed yet.
419
last_enabled: datetime.datetime(); (UTC) or None
420
name: string; from the config file, used in log messages and
422
secret: bytestring; sent verbatim (over TLS) to client
423
timeout: datetime.timedelta(); How long from last_checked_ok
424
until this client is disabled
425
extended_timeout: extra long timeout when secret has been sent
426
runtime_expansions: Allowed attributes for runtime expansion.
427
expires: datetime.datetime(); time (UTC) when a client will be
268
approval_delay: datetime.timedelta(); Time to wait for approval
269
_approved: bool(); 'None' if not yet approved/disapproved
270
approval_duration: datetime.timedelta(); Duration of one approval
431
runtime_expansions = ("approval_delay", "approval_duration",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
434
"last_enabled", "name", "timeout")
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
438
"checker": "fping -q -- %%(host)s",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
274
def _timedelta_to_milliseconds(td):
275
"Convert a datetime.timedelta() to milliseconds"
276
return ((td.days * 24 * 60 * 60 * 1000)
277
+ (td.seconds * 1000)
278
+ (td.microseconds // 1000))
446
280
def timeout_milliseconds(self):
447
281
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
282
return self._timedelta_to_milliseconds(self.timeout)
454
284
def interval_milliseconds(self):
455
285
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
286
return self._timedelta_to_milliseconds(self.interval)
458
288
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
462
def config_parser(config):
463
"""Construct a new dict of client settings of this form:
464
{ client_name: {setting_name: value, ...}, ...}
465
with exceptions for any special settings as defined above.
466
NOTE: Must be a pure function. Must return the same result
467
value given the same arguments.
470
for client_name in config.sections():
471
section = dict(config.items(client_name))
472
client = settings[client_name] = {}
474
client["host"] = section["host"]
475
# Reformat values from string types to Python types
476
client["approved_by_default"] = config.getboolean(
477
client_name, "approved_by_default")
478
client["enabled"] = config.getboolean(client_name,
481
client["fingerprint"] = (section["fingerprint"].upper()
483
if "secret" in section:
484
client["secret"] = section["secret"].decode("base64")
485
elif "secfile" in section:
486
with open(os.path.expanduser(os.path.expandvars
487
(section["secfile"])),
489
client["secret"] = secfile.read()
491
raise TypeError("No secret or secfile for section %s"
493
client["timeout"] = string_to_delta(section["timeout"])
494
client["extended_timeout"] = string_to_delta(
495
section["extended_timeout"])
496
client["interval"] = string_to_delta(section["interval"])
497
client["approval_delay"] = string_to_delta(
498
section["approval_delay"])
499
client["approval_duration"] = string_to_delta(
500
section["approval_duration"])
501
client["checker_command"] = section["checker"]
502
client["last_approval_request"] = None
503
client["last_checked_ok"] = None
504
client["last_checker_status"] = -2
509
def __init__(self, settings, name = None):
289
return self._timedelta_to_milliseconds(self.approval_delay)
291
def __init__(self, name = None, disable_hook=None, config=None):
510
292
"""Note: the 'checker' key in 'config' sets the
511
293
'checker_command' attribute and *not* the 'checker'
514
# adding all client settings
515
for setting, value in settings.iteritems():
516
setattr(self, setting, value)
519
if not hasattr(self, "last_enabled"):
520
self.last_enabled = datetime.datetime.utcnow()
521
if not hasattr(self, "expires"):
522
self.expires = (datetime.datetime.utcnow()
525
self.last_enabled = None
528
logger.debug("Creating client %r", self.name)
298
logger.debug(u"Creating client %r", self.name)
529
299
# Uppercase and remove spaces from fingerprint for later
530
300
# comparison purposes with return value from the fingerprint()
532
logger.debug(" Fingerprint: %s", self.fingerprint)
533
self.created = settings.get("created",
534
datetime.datetime.utcnow())
536
# attributes specific for this server instance
302
self.fingerprint = (config[u"fingerprint"].upper()
304
logger.debug(u" Fingerprint: %s", self.fingerprint)
305
if u"secret" in config:
306
self.secret = config[u"secret"].decode(u"base64")
307
elif u"secfile" in config:
308
with open(os.path.expanduser(os.path.expandvars
309
(config[u"secfile"])),
311
self.secret = secfile.read()
313
raise TypeError(u"No secret or secfile for client %s"
315
self.host = config.get(u"host", u"")
316
self.created = datetime.datetime.utcnow()
318
self.last_enabled = None
319
self.last_checked_ok = None
320
self.timeout = string_to_delta(config[u"timeout"])
321
self.interval = string_to_delta(config[u"interval"])
322
self.disable_hook = disable_hook
537
323
self.checker = None
538
324
self.checker_initiator_tag = None
539
325
self.disable_initiator_tag = None
540
326
self.checker_callback_tag = None
327
self.checker_command = config[u"checker"]
541
328
self.current_checker_command = None
329
self.last_connect = None
330
self._approved = None
331
self.approved_by_default = config.get(u"approved_by_default",
543
333
self.approvals_pending = 0
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
549
if not attr.startswith("_")]
550
self.client_structure.append("client_structure")
552
for name, t in inspect.getmembers(type(self),
556
if not name.startswith("_"):
557
self.client_structure.append(name)
334
self.approval_delay = string_to_delta(
335
config[u"approval_delay"])
336
self.approval_duration = string_to_delta(
337
config[u"approval_duration"])
338
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
559
# Send notice to process children that client state has changed
560
340
def send_changedstate(self):
561
with self.changedstate:
562
self.changedstate.notify_all()
341
self.changedstate.acquire()
342
self.changedstate.notify_all()
343
self.changedstate.release()
564
345
def enable(self):
565
346
"""Start this client's checker and timeout hooks"""
566
if getattr(self, "enabled", False):
347
if getattr(self, u"enabled", False):
567
348
# Already enabled
569
350
self.send_changedstate()
570
self.expires = datetime.datetime.utcnow() + self.timeout
572
351
self.last_enabled = datetime.datetime.utcnow()
575
def disable(self, quiet=True):
576
"""Disable this client."""
577
if not getattr(self, "enabled", False):
580
self.send_changedstate()
582
logger.info("Disabling client %s", self.name)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
585
self.disable_initiator_tag = None
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
589
self.checker_initiator_tag = None
592
# Do not run this again if called by a gobject.timeout_add
598
def init_checker(self):
599
352
# Schedule a new checker to be started an 'interval' from now,
600
353
# and every interval from then on.
601
354
self.checker_initiator_tag = (gobject.timeout_add
605
358
self.disable_initiator_tag = (gobject.timeout_add
606
359
(self.timeout_milliseconds(),
608
362
# Also start a new checker *right now*.
609
363
self.start_checker()
365
def disable(self, quiet=True):
366
"""Disable this client."""
367
if not getattr(self, "enabled", False):
370
self.send_changedstate()
372
logger.info(u"Disabling client %s", self.name)
373
if getattr(self, u"disable_initiator_tag", False):
374
gobject.source_remove(self.disable_initiator_tag)
375
self.disable_initiator_tag = None
376
if getattr(self, u"checker_initiator_tag", False):
377
gobject.source_remove(self.checker_initiator_tag)
378
self.checker_initiator_tag = None
380
if self.disable_hook:
381
self.disable_hook(self)
383
# Do not run this again if called by a gobject.timeout_add
387
self.disable_hook = None
611
390
def checker_callback(self, pid, condition, command):
612
391
"""The checker has completed, so take appropriate actions."""
613
392
self.checker_callback_tag = None
614
393
self.checker = None
615
394
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
617
if self.last_checker_status == 0:
618
logger.info("Checker for %(name)s succeeded",
395
exitstatus = os.WEXITSTATUS(condition)
397
logger.info(u"Checker for %(name)s succeeded",
620
399
self.checked_ok()
622
logger.info("Checker for %(name)s failed",
401
logger.info(u"Checker for %(name)s failed",
625
self.last_checker_status = -1
626
logger.warning("Checker for %(name)s crashed?",
404
logger.warning(u"Checker for %(name)s crashed?",
629
407
def checked_ok(self):
630
"""Assert that the client has been seen, alive and well."""
408
"""Bump up the timeout for this client.
410
This should only be called when the client has been seen,
631
413
self.last_checked_ok = datetime.datetime.utcnow()
632
self.last_checker_status = 0
635
def bump_timeout(self, timeout=None):
636
"""Bump up the timeout for this client."""
638
timeout = self.timeout
639
if self.disable_initiator_tag is not None:
640
gobject.source_remove(self.disable_initiator_tag)
641
if getattr(self, "enabled", False):
642
self.disable_initiator_tag = (gobject.timeout_add
643
(timedelta_to_milliseconds
644
(timeout), self.disable))
645
self.expires = datetime.datetime.utcnow() + timeout
647
def need_approval(self):
648
self.last_approval_request = datetime.datetime.utcnow()
414
gobject.source_remove(self.disable_initiator_tag)
415
self.disable_initiator_tag = (gobject.timeout_add
416
(self.timeout_milliseconds(),
650
419
def start_checker(self):
651
420
"""Start a new checker subprocess if one is not running.
802
568
def _is_dbus_property(obj):
803
return getattr(obj, "_dbus_is_property", False)
569
return getattr(obj, u"_dbus_is_property", False)
805
571
def _get_all_dbus_properties(self):
806
572
"""Returns a generator of (name, attribute) pairs
808
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
809
for cls in self.__class__.__mro__
574
return ((prop._dbus_name, prop)
810
575
for name, prop in
811
inspect.getmembers(cls, self._is_dbus_property))
576
inspect.getmembers(self, self._is_dbus_property))
813
578
def _get_dbus_property(self, interface_name, property_name):
814
579
"""Returns a bound method if one exists which is a D-Bus
815
580
property with the specified name and interface.
817
for cls in self.__class__.__mro__:
818
for name, value in (inspect.getmembers
819
(cls, self._is_dbus_property)):
820
if (value._dbus_name == property_name
821
and value._dbus_interface == interface_name):
822
return value.__get__(self)
582
for name in (property_name,
583
property_name + u"_dbus_property"):
584
prop = getattr(self, name, None)
586
or not self._is_dbus_property(prop)
587
or prop._dbus_name != property_name
588
or (interface_name and prop._dbus_interface
589
and interface_name != prop._dbus_interface)):
824
592
# No such property
825
raise DBusPropertyNotFound(self.dbus_object_path + ":"
826
+ interface_name + "."
593
raise DBusPropertyNotFound(self.dbus_object_path + u":"
594
+ interface_name + u"."
829
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
831
599
def Get(self, interface_name, property_name):
832
600
"""Standard D-Bus property Get() method, see D-Bus standard.
834
602
prop = self._get_dbus_property(interface_name, property_name)
835
if prop._dbus_access == "write":
603
if prop._dbus_access == u"write":
836
604
raise DBusPropertyAccessException(property_name)
838
if not hasattr(value, "variant_level"):
606
if not hasattr(value, u"variant_level"):
840
608
return type(value)(value, variant_level=value.variant_level+1)
842
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
843
611
def Set(self, interface_name, property_name, value):
844
612
"""Standard D-Bus property Set() method, see D-Bus standard.
846
614
prop = self._get_dbus_property(interface_name, property_name)
847
if prop._dbus_access == "read":
615
if prop._dbus_access == u"read":
848
616
raise DBusPropertyAccessException(property_name)
849
if prop._dbus_get_args_options["byte_arrays"]:
617
if prop._dbus_get_args_options[u"byte_arrays"]:
850
618
# The byte_arrays option is not supported yet on
851
619
# signatures other than "ay".
852
if prop._dbus_signature != "ay":
620
if prop._dbus_signature != u"ay":
854
value = dbus.ByteArray(b''.join(chr(byte)
622
value = dbus.ByteArray(''.join(unichr(byte)
858
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
859
out_signature="a{sv}")
626
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
627
out_signature=u"a{sv}")
860
628
def GetAll(self, interface_name):
861
629
"""Standard D-Bus property GetAll() method, see D-Bus
864
632
Note: Will not include properties with access="write".
867
635
for name, prop in self._get_all_dbus_properties():
868
636
if (interface_name
869
637
and interface_name != prop._dbus_interface):
870
638
# Interface non-empty but did not match
872
640
# Ignore write-only properties
873
if prop._dbus_access == "write":
641
if prop._dbus_access == u"write":
876
if not hasattr(value, "variant_level"):
877
properties[name] = value
644
if not hasattr(value, u"variant_level"):
879
properties[name] = type(value)(value, variant_level=
880
value.variant_level+1)
881
return dbus.Dictionary(properties, signature="sv")
647
all[name] = type(value)(value, variant_level=
648
value.variant_level+1)
649
return dbus.Dictionary(all, signature=u"sv")
883
651
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
885
653
path_keyword='object_path',
886
654
connection_keyword='connection')
887
655
def Introspect(self, object_path, connection):
893
661
document = xml.dom.minidom.parseString(xmlstring)
894
662
def make_tag(document, name, prop):
895
e = document.createElement("property")
896
e.setAttribute("name", name)
897
e.setAttribute("type", prop._dbus_signature)
898
e.setAttribute("access", prop._dbus_access)
663
e = document.createElement(u"property")
664
e.setAttribute(u"name", name)
665
e.setAttribute(u"type", prop._dbus_signature)
666
e.setAttribute(u"access", prop._dbus_access)
900
for if_tag in document.getElementsByTagName("interface"):
668
for if_tag in document.getElementsByTagName(u"interface"):
901
669
for tag in (make_tag(document, name, prop)
903
671
in self._get_all_dbus_properties()
904
672
if prop._dbus_interface
905
== if_tag.getAttribute("name")):
673
== if_tag.getAttribute(u"name")):
906
674
if_tag.appendChild(tag)
907
675
# Add the names to the return values for the
908
676
# "org.freedesktop.DBus.Properties" methods
909
if (if_tag.getAttribute("name")
910
== "org.freedesktop.DBus.Properties"):
911
for cn in if_tag.getElementsByTagName("method"):
912
if cn.getAttribute("name") == "Get":
913
for arg in cn.getElementsByTagName("arg"):
914
if (arg.getAttribute("direction")
916
arg.setAttribute("name", "value")
917
elif cn.getAttribute("name") == "GetAll":
918
for arg in cn.getElementsByTagName("arg"):
919
if (arg.getAttribute("direction")
921
arg.setAttribute("name", "props")
922
xmlstring = document.toxml("utf-8")
677
if (if_tag.getAttribute(u"name")
678
== u"org.freedesktop.DBus.Properties"):
679
for cn in if_tag.getElementsByTagName(u"method"):
680
if cn.getAttribute(u"name") == u"Get":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
684
arg.setAttribute(u"name", u"value")
685
elif cn.getAttribute(u"name") == u"GetAll":
686
for arg in cn.getElementsByTagName(u"arg"):
687
if (arg.getAttribute(u"direction")
689
arg.setAttribute(u"name", u"props")
690
xmlstring = document.toxml(u"utf-8")
923
691
document.unlink()
924
692
except (AttributeError, xml.dom.DOMException,
925
xml.parsers.expat.ExpatError) as error:
926
logger.error("Failed to override Introspection method",
693
xml.parsers.expat.ExpatError), error:
694
logger.error(u"Failed to override Introspection method",
931
def datetime_to_dbus (dt, variant_level=0):
932
"""Convert a UTC datetime.datetime() to a D-Bus type."""
934
return dbus.String("", variant_level = variant_level)
935
return dbus.String(dt.isoformat(),
936
variant_level=variant_level)
939
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
941
"""Applied to an empty subclass of a D-Bus object, this metaclass
942
will add additional D-Bus attributes matching a certain pattern.
944
def __new__(mcs, name, bases, attr):
945
# Go through all the base classes which could have D-Bus
946
# methods, signals, or properties in them
947
for base in (b for b in bases
948
if issubclass(b, dbus.service.Object)):
949
# Go though all attributes of the base class
950
for attrname, attribute in inspect.getmembers(base):
951
# Ignore non-D-Bus attributes, and D-Bus attributes
952
# with the wrong interface name
953
if (not hasattr(attribute, "_dbus_interface")
954
or not attribute._dbus_interface
955
.startswith("se.recompile.Mandos")):
957
# Create an alternate D-Bus interface name based on
959
alt_interface = (attribute._dbus_interface
960
.replace("se.recompile.Mandos",
961
"se.bsnet.fukt.Mandos"))
962
# Is this a D-Bus signal?
963
if getattr(attribute, "_dbus_is_signal", False):
964
# Extract the original non-method function by
966
nonmethod_func = (dict(
967
zip(attribute.func_code.co_freevars,
968
attribute.__closure__))["func"]
970
# Create a new, but exactly alike, function
971
# object, and decorate it to be a new D-Bus signal
972
# with the alternate D-Bus interface name
973
new_function = (dbus.service.signal
975
attribute._dbus_signature)
977
nonmethod_func.func_code,
978
nonmethod_func.func_globals,
979
nonmethod_func.func_name,
980
nonmethod_func.func_defaults,
981
nonmethod_func.func_closure)))
982
# Define a creator of a function to call both the
983
# old and new functions, so both the old and new
984
# signals gets sent when the function is called
985
def fixscope(func1, func2):
986
"""This function is a scope container to pass
987
func1 and func2 to the "call_both" function
988
outside of its arguments"""
989
def call_both(*args, **kwargs):
990
"""This function will emit two D-Bus
991
signals by calling func1 and func2"""
992
func1(*args, **kwargs)
993
func2(*args, **kwargs)
995
# Create the "call_both" function and add it to
997
attr[attrname] = fixscope(attribute,
999
# Is this a D-Bus method?
1000
elif getattr(attribute, "_dbus_is_method", False):
1001
# Create a new, but exactly alike, function
1002
# object. Decorate it to be a new D-Bus method
1003
# with the alternate D-Bus interface name. Add it
1005
attr[attrname] = (dbus.service.method
1007
attribute._dbus_in_signature,
1008
attribute._dbus_out_signature)
1010
(attribute.func_code,
1011
attribute.func_globals,
1012
attribute.func_name,
1013
attribute.func_defaults,
1014
attribute.func_closure)))
1015
# Is this a D-Bus property?
1016
elif getattr(attribute, "_dbus_is_property", False):
1017
# Create a new, but exactly alike, function
1018
# object, and decorate it to be a new D-Bus
1019
# property with the alternate D-Bus interface
1020
# name. Add it to the class.
1021
attr[attrname] = (dbus_service_property
1023
attribute._dbus_signature,
1024
attribute._dbus_access,
1026
._dbus_get_args_options
1029
(attribute.func_code,
1030
attribute.func_globals,
1031
attribute.func_name,
1032
attribute.func_defaults,
1033
attribute.func_closure)))
1034
return type.__new__(mcs, name, bases, attr)
1037
699
class ClientDBus(Client, DBusObjectWithProperties):
1038
700
"""A Client class using D-Bus
1041
703
dbus_object_path: dbus.ObjectPath
1042
704
bus: dbus.SystemBus()
1045
runtime_expansions = (Client.runtime_expansions
1046
+ ("dbus_object_path",))
1048
706
# dbus.service.Object doesn't use super(), so we can't either.
1050
708
def __init__(self, bus = None, *args, **kwargs):
709
self._approvals_pending = 0
1052
711
Client.__init__(self, *args, **kwargs)
1053
712
# Only now, when this client is initialized, can it show up on
1055
client_object_name = unicode(self.name).translate(
1056
{ord("."): ord("_"),
1057
ord("-"): ord("_")})
1058
714
self.dbus_object_path = (dbus.ObjectPath
1059
("/clients/" + client_object_name))
716
+ self.name.replace(u".", u"_")))
1060
717
DBusObjectWithProperties.__init__(self, self.bus,
1061
718
self.dbus_object_path)
1063
def notifychangeproperty(transform_func,
1064
dbus_name, type_func=lambda x: x,
1066
""" Modify a variable so that it's a property which announces
1067
its changes to DBus.
1069
transform_fun: Function that takes a value and a variant_level
1070
and transforms it to a D-Bus type.
1071
dbus_name: D-Bus name of the variable
1072
type_func: Function that transform the value before sending it
1073
to the D-Bus. Default: no transform
1074
variant_level: D-Bus variant level. Default: 1
1076
attrname = "_{0}".format(dbus_name)
1077
def setter(self, value):
1078
if hasattr(self, "dbus_object_path"):
1079
if (not hasattr(self, attrname) or
1080
type_func(getattr(self, attrname, None))
1081
!= type_func(value)):
1082
dbus_value = transform_func(type_func(value),
1085
self.PropertyChanged(dbus.String(dbus_name),
1087
setattr(self, attrname, value)
1089
return property(lambda self: getattr(self, attrname), setter)
1092
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1093
approvals_pending = notifychangeproperty(dbus.Boolean,
1096
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1097
last_enabled = notifychangeproperty(datetime_to_dbus,
1099
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1100
type_func = lambda checker:
1101
checker is not None)
1102
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1104
last_checker_status = notifychangeproperty(dbus.Int16,
1105
"LastCheckerStatus")
1106
last_approval_request = notifychangeproperty(
1107
datetime_to_dbus, "LastApprovalRequest")
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1109
"ApprovedByDefault")
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1113
timedelta_to_milliseconds)
1114
approval_duration = notifychangeproperty(
1115
dbus.UInt64, "ApprovalDuration",
1116
type_func = timedelta_to_milliseconds)
1117
host = notifychangeproperty(dbus.String, "Host")
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1120
timedelta_to_milliseconds)
1121
extended_timeout = notifychangeproperty(
1122
dbus.UInt64, "ExtendedTimeout",
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1127
timedelta_to_milliseconds)
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1130
del notifychangeproperty
720
def _get_approvals_pending(self):
721
return self._approvals_pending
722
def _set_approvals_pending(self, value):
723
old_value = self._approvals_pending
724
self._approvals_pending = value
726
if (hasattr(self, "dbus_object_path")
727
and bval is not bool(old_value)):
728
dbus_bool = dbus.Boolean(bval, variant_level=1)
729
self.PropertyChanged(dbus.String(u"ApprovalPending"),
732
approvals_pending = property(_get_approvals_pending,
733
_set_approvals_pending)
734
del _get_approvals_pending, _set_approvals_pending
737
def _datetime_to_dbus(dt, variant_level=0):
738
"""Convert a UTC datetime.datetime() to a D-Bus type."""
739
return dbus.String(dt.isoformat(),
740
variant_level=variant_level)
743
oldstate = getattr(self, u"enabled", False)
744
r = Client.enable(self)
745
if oldstate != self.enabled:
747
self.PropertyChanged(dbus.String(u"Enabled"),
748
dbus.Boolean(True, variant_level=1))
749
self.PropertyChanged(
750
dbus.String(u"LastEnabled"),
751
self._datetime_to_dbus(self.last_enabled,
755
def disable(self, quiet = False):
756
oldstate = getattr(self, u"enabled", False)
757
r = Client.disable(self, quiet=quiet)
758
if not quiet and oldstate != self.enabled:
760
self.PropertyChanged(dbus.String(u"Enabled"),
761
dbus.Boolean(False, variant_level=1))
1132
764
def __del__(self, *args, **kwargs):
1134
766
self.remove_from_connection()
1135
767
except LookupError:
1137
if hasattr(DBusObjectWithProperties, "__del__"):
769
if hasattr(DBusObjectWithProperties, u"__del__"):
1138
770
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1139
771
Client.__del__(self, *args, **kwargs)
1267
923
# ApprovalPending - property
1268
@dbus_service_property(_interface, signature="b", access="read")
924
@dbus_service_property(_interface, signature=u"b", access=u"read")
1269
925
def ApprovalPending_dbus_property(self):
1270
926
return dbus.Boolean(bool(self.approvals_pending))
1272
928
# ApprovedByDefault - property
1273
@dbus_service_property(_interface, signature="b",
929
@dbus_service_property(_interface, signature=u"b",
1275
931
def ApprovedByDefault_dbus_property(self, value=None):
1276
932
if value is None: # get
1277
933
return dbus.Boolean(self.approved_by_default)
1278
934
self.approved_by_default = bool(value)
936
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
937
dbus.Boolean(value, variant_level=1))
1280
939
# ApprovalDelay - property
1281
@dbus_service_property(_interface, signature="t",
940
@dbus_service_property(_interface, signature=u"t",
1283
942
def ApprovalDelay_dbus_property(self, value=None):
1284
943
if value is None: # get
1285
944
return dbus.UInt64(self.approval_delay_milliseconds())
1286
945
self.approval_delay = datetime.timedelta(0, 0, 0, value)
947
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
948
dbus.UInt64(value, variant_level=1))
1288
950
# ApprovalDuration - property
1289
@dbus_service_property(_interface, signature="t",
951
@dbus_service_property(_interface, signature=u"t",
1291
953
def ApprovalDuration_dbus_property(self, value=None):
1292
954
if value is None: # get
1293
return dbus.UInt64(timedelta_to_milliseconds(
955
return dbus.UInt64(self._timedelta_to_milliseconds(
1294
956
self.approval_duration))
1295
957
self.approval_duration = datetime.timedelta(0, 0, 0, value)
959
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
960
dbus.UInt64(value, variant_level=1))
1297
962
# Name - property
1298
@dbus_service_property(_interface, signature="s", access="read")
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
1299
964
def Name_dbus_property(self):
1300
965
return dbus.String(self.name)
1302
967
# Fingerprint - property
1303
@dbus_service_property(_interface, signature="s", access="read")
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
1304
969
def Fingerprint_dbus_property(self):
1305
970
return dbus.String(self.fingerprint)
1307
972
# Host - property
1308
@dbus_service_property(_interface, signature="s",
973
@dbus_service_property(_interface, signature=u"s",
1310
975
def Host_dbus_property(self, value=None):
1311
976
if value is None: # get
1312
977
return dbus.String(self.host)
1313
self.host = unicode(value)
980
self.PropertyChanged(dbus.String(u"Host"),
981
dbus.String(value, variant_level=1))
1315
983
# Created - property
1316
@dbus_service_property(_interface, signature="s", access="read")
984
@dbus_service_property(_interface, signature=u"s", access=u"read")
1317
985
def Created_dbus_property(self):
1318
return datetime_to_dbus(self.created)
986
return dbus.String(self._datetime_to_dbus(self.created))
1320
988
# LastEnabled - property
1321
@dbus_service_property(_interface, signature="s", access="read")
989
@dbus_service_property(_interface, signature=u"s", access=u"read")
1322
990
def LastEnabled_dbus_property(self):
1323
return datetime_to_dbus(self.last_enabled)
991
if self.last_enabled is None:
992
return dbus.String(u"")
993
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1325
995
# Enabled - property
1326
@dbus_service_property(_interface, signature="b",
996
@dbus_service_property(_interface, signature=u"b",
1328
998
def Enabled_dbus_property(self, value=None):
1329
999
if value is None: # get
1330
1000
return dbus.Boolean(self.enabled)
1336
1006
# LastCheckedOK - property
1337
@dbus_service_property(_interface, signature="s",
1007
@dbus_service_property(_interface, signature=u"s",
1008
access=u"readwrite")
1339
1009
def LastCheckedOK_dbus_property(self, value=None):
1340
1010
if value is not None:
1341
1011
self.checked_ok()
1343
return datetime_to_dbus(self.last_checked_ok)
1345
# LastCheckerStatus - property
1346
@dbus_service_property(_interface, signature="n",
1348
def LastCheckerStatus_dbus_property(self):
1349
return dbus.Int16(self.last_checker_status)
1351
# Expires - property
1352
@dbus_service_property(_interface, signature="s", access="read")
1353
def Expires_dbus_property(self):
1354
return datetime_to_dbus(self.expires)
1356
# LastApprovalRequest - property
1357
@dbus_service_property(_interface, signature="s", access="read")
1358
def LastApprovalRequest_dbus_property(self):
1359
return datetime_to_dbus(self.last_approval_request)
1013
if self.last_checked_ok is None:
1014
return dbus.String(u"")
1015
return dbus.String(self._datetime_to_dbus(self
1361
1018
# Timeout - property
1362
@dbus_service_property(_interface, signature="t",
1019
@dbus_service_property(_interface, signature=u"t",
1020
access=u"readwrite")
1364
1021
def Timeout_dbus_property(self, value=None):
1365
1022
if value is None: # get
1366
1023
return dbus.UInt64(self.timeout_milliseconds())
1367
1024
self.timeout = datetime.timedelta(0, 0, 0, value)
1026
self.PropertyChanged(dbus.String(u"Timeout"),
1027
dbus.UInt64(value, variant_level=1))
1028
if getattr(self, u"disable_initiator_tag", None) is None:
1368
1030
# Reschedule timeout
1370
now = datetime.datetime.utcnow()
1371
time_to_die = timedelta_to_milliseconds(
1372
(self.last_checked_ok + self.timeout) - now)
1373
if time_to_die <= 0:
1374
# The timeout has passed
1377
self.expires = (now +
1378
datetime.timedelta(milliseconds =
1380
if (getattr(self, "disable_initiator_tag", None)
1383
gobject.source_remove(self.disable_initiator_tag)
1384
self.disable_initiator_tag = (gobject.timeout_add
1388
# ExtendedTimeout - property
1389
@dbus_service_property(_interface, signature="t",
1391
def ExtendedTimeout_dbus_property(self, value=None):
1392
if value is None: # get
1393
return dbus.UInt64(self.extended_timeout_milliseconds())
1394
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1031
gobject.source_remove(self.disable_initiator_tag)
1032
self.disable_initiator_tag = None
1033
time_to_die = (self.
1034
_timedelta_to_milliseconds((self
1039
if time_to_die <= 0:
1040
# The timeout has passed
1043
self.disable_initiator_tag = (gobject.timeout_add
1044
(time_to_die, self.disable))
1396
1046
# Interval - property
1397
@dbus_service_property(_interface, signature="t",
1047
@dbus_service_property(_interface, signature=u"t",
1048
access=u"readwrite")
1399
1049
def Interval_dbus_property(self, value=None):
1400
1050
if value is None: # get
1401
1051
return dbus.UInt64(self.interval_milliseconds())
1402
1052
self.interval = datetime.timedelta(0, 0, 0, value)
1403
if getattr(self, "checker_initiator_tag", None) is None:
1054
self.PropertyChanged(dbus.String(u"Interval"),
1055
dbus.UInt64(value, variant_level=1))
1056
if getattr(self, u"checker_initiator_tag", None) is None:
1406
# Reschedule checker run
1407
gobject.source_remove(self.checker_initiator_tag)
1408
self.checker_initiator_tag = (gobject.timeout_add
1409
(value, self.start_checker))
1410
self.start_checker() # Start one now, too
1058
# Reschedule checker run
1059
gobject.source_remove(self.checker_initiator_tag)
1060
self.checker_initiator_tag = (gobject.timeout_add
1061
(value, self.start_checker))
1062
self.start_checker() # Start one now, too
1412
1064
# Checker - property
1413
@dbus_service_property(_interface, signature="s",
1065
@dbus_service_property(_interface, signature=u"s",
1066
access=u"readwrite")
1415
1067
def Checker_dbus_property(self, value=None):
1416
1068
if value is None: # get
1417
1069
return dbus.String(self.checker_command)
1418
self.checker_command = unicode(value)
1070
self.checker_command = value
1072
self.PropertyChanged(dbus.String(u"Checker"),
1073
dbus.String(self.checker_command,
1420
1076
# CheckerRunning - property
1421
@dbus_service_property(_interface, signature="b",
1077
@dbus_service_property(_interface, signature=u"b",
1078
access=u"readwrite")
1423
1079
def CheckerRunning_dbus_property(self, value=None):
1424
1080
if value is None: # get
1425
1081
return dbus.Boolean(self.checker is not None)
1481
1133
def handle(self):
1482
1134
with contextlib.closing(self.server.child_pipe) as child_pipe:
1483
logger.info("TCP connection from: %s",
1135
logger.info(u"TCP connection from: %s",
1484
1136
unicode(self.client_address))
1485
logger.debug("Pipe FD: %d",
1137
logger.debug(u"Pipe FD: %d",
1486
1138
self.server.child_pipe.fileno())
1488
1140
session = (gnutls.connection
1489
1141
.ClientSession(self.request,
1490
1142
gnutls.connection
1491
1143
.X509Credentials()))
1493
1145
# Note: gnutls.connection.X509Credentials is really a
1494
1146
# generic GnuTLS certificate credentials object so long as
1495
1147
# no X.509 keys are added to it. Therefore, we can use it
1496
1148
# here despite using OpenPGP certificates.
1498
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1499
# "+AES-256-CBC", "+SHA1",
1500
# "+COMP-NULL", "+CTYPE-OPENPGP",
1150
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1151
# u"+AES-256-CBC", u"+SHA1",
1152
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1502
1154
# Use a fallback default, since this MUST be set.
1503
1155
priority = self.server.gnutls_priority
1504
1156
if priority is None:
1157
priority = u"NORMAL"
1506
1158
(gnutls.library.functions
1507
1159
.gnutls_priority_set_direct(session._c_object,
1508
1160
priority, None))
1510
1162
# Start communication using the Mandos protocol
1511
1163
# Get protocol number
1512
1164
line = self.request.makefile().readline()
1513
logger.debug("Protocol version: %r", line)
1165
logger.debug(u"Protocol version: %r", line)
1515
1167
if int(line.strip().split()[0]) > 1:
1516
1168
raise RuntimeError
1517
except (ValueError, IndexError, RuntimeError) as error:
1518
logger.error("Unknown protocol version: %s", error)
1169
except (ValueError, IndexError, RuntimeError), error:
1170
logger.error(u"Unknown protocol version: %s", error)
1521
1173
# Start GnuTLS connection
1523
1175
session.handshake()
1524
except gnutls.errors.GNUTLSError as error:
1525
logger.warning("Handshake failed: %s", error)
1176
except gnutls.errors.GNUTLSError, error:
1177
logger.warning(u"Handshake failed: %s", error)
1526
1178
# Do not run session.bye() here: the session is not
1527
1179
# established. Just abandon the request.
1529
logger.debug("Handshake succeeded")
1181
logger.debug(u"Handshake succeeded")
1531
1183
approval_required = False
1534
1186
fpr = self.fingerprint(self.peer_certificate
1537
gnutls.errors.GNUTLSError) as error:
1538
logger.warning("Bad certificate: %s", error)
1188
except (TypeError, gnutls.errors.GNUTLSError), error:
1189
logger.warning(u"Bad certificate: %s", error)
1540
logger.debug("Fingerprint: %s", fpr)
1191
logger.debug(u"Fingerprint: %s", fpr)
1543
1194
client = ProxyClient(child_pipe, fpr,
1544
1195
self.client_address)
1980
1635
##################################################################
1981
1636
# Parsing of options, both command line and config file
1983
parser = argparse.ArgumentParser()
1984
parser.add_argument("-v", "--version", action="version",
1985
version = "%%(prog)s %s" % version,
1986
help="show version number and exit")
1987
parser.add_argument("-i", "--interface", metavar="IF",
1988
help="Bind to interface IF")
1989
parser.add_argument("-a", "--address",
1990
help="Address to listen for requests on")
1991
parser.add_argument("-p", "--port", type=int,
1992
help="Port number to receive requests on")
1993
parser.add_argument("--check", action="store_true",
1994
help="Run self-test")
1995
parser.add_argument("--debug", action="store_true",
1996
help="Debug mode; run in foreground and log"
1998
parser.add_argument("--debuglevel", metavar="LEVEL",
1999
help="Debug level for stdout output")
2000
parser.add_argument("--priority", help="GnuTLS"
2001
" priority string (see GnuTLS documentation)")
2002
parser.add_argument("--servicename",
2003
metavar="NAME", help="Zeroconf service name")
2004
parser.add_argument("--configdir",
2005
default="/etc/mandos", metavar="DIR",
2006
help="Directory to search for configuration"
2008
parser.add_argument("--no-dbus", action="store_false",
2009
dest="use_dbus", help="Do not provide D-Bus"
2010
" system bus interface")
2011
parser.add_argument("--no-ipv6", action="store_false",
2012
dest="use_ipv6", help="Do not use IPv6")
2013
parser.add_argument("--no-restore", action="store_false",
2014
dest="restore", help="Do not restore stored"
2016
parser.add_argument("--statedir", metavar="DIR",
2017
help="Directory to save/restore state in")
2019
options = parser.parse_args()
1638
parser = optparse.OptionParser(version = "%%prog %s" % version)
1639
parser.add_option("-i", u"--interface", type=u"string",
1640
metavar="IF", help=u"Bind to interface IF")
1641
parser.add_option("-a", u"--address", type=u"string",
1642
help=u"Address to listen for requests on")
1643
parser.add_option("-p", u"--port", type=u"int",
1644
help=u"Port number to receive requests on")
1645
parser.add_option("--check", action=u"store_true",
1646
help=u"Run self-test")
1647
parser.add_option("--debug", action=u"store_true",
1648
help=u"Debug mode; run in foreground and log to"
1650
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1651
help=u"Debug level for stdout output")
1652
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1653
u" priority string (see GnuTLS documentation)")
1654
parser.add_option("--servicename", type=u"string",
1655
metavar=u"NAME", help=u"Zeroconf service name")
1656
parser.add_option("--configdir", type=u"string",
1657
default=u"/etc/mandos", metavar=u"DIR",
1658
help=u"Directory to search for configuration"
1660
parser.add_option("--no-dbus", action=u"store_false",
1661
dest=u"use_dbus", help=u"Do not provide D-Bus"
1662
u" system bus interface")
1663
parser.add_option("--no-ipv6", action=u"store_false",
1664
dest=u"use_ipv6", help=u"Do not use IPv6")
1665
options = parser.parse_args()[0]
2021
1667
if options.check:
2073
1716
##################################################################
2075
1718
# For convenience
2076
debug = server_settings["debug"]
2077
debuglevel = server_settings["debuglevel"]
2078
use_dbus = server_settings["use_dbus"]
2079
use_ipv6 = server_settings["use_ipv6"]
2080
stored_state_path = os.path.join(server_settings["statedir"],
2084
initlogger(debug, logging.DEBUG)
2089
level = getattr(logging, debuglevel.upper())
2090
initlogger(debug, level)
2092
if server_settings["servicename"] != "Mandos":
1719
debug = server_settings[u"debug"]
1720
debuglevel = server_settings[u"debuglevel"]
1721
use_dbus = server_settings[u"use_dbus"]
1722
use_ipv6 = server_settings[u"use_ipv6"]
1724
if server_settings[u"servicename"] != u"Mandos":
2093
1725
syslogger.setFormatter(logging.Formatter
2094
('Mandos (%s) [%%(process)d]:'
2095
' %%(levelname)s: %%(message)s'
2096
% server_settings["servicename"]))
1726
(u'Mandos (%s) [%%(process)d]:'
1727
u' %%(levelname)s: %%(message)s'
1728
% server_settings[u"servicename"]))
2098
1730
# Parse config file with clients
2099
client_config = configparser.SafeConfigParser(Client
2101
client_config.read(os.path.join(server_settings["configdir"],
1731
client_defaults = { u"timeout": u"1h",
1733
u"checker": u"fping -q -- %%(host)s",
1735
u"approval_delay": u"0s",
1736
u"approval_duration": u"1s",
1738
client_config = configparser.SafeConfigParser(client_defaults)
1739
client_config.read(os.path.join(server_settings[u"configdir"],
2104
1742
global mandos_dbus_service
2105
1743
mandos_dbus_service = None
2107
tcp_server = MandosServer((server_settings["address"],
2108
server_settings["port"]),
1745
tcp_server = MandosServer((server_settings[u"address"],
1746
server_settings[u"port"]),
2110
interface=(server_settings["interface"]
1748
interface=(server_settings[u"interface"]
2112
1750
use_ipv6=use_ipv6,
2113
1751
gnutls_priority=
2114
server_settings["priority"],
1752
server_settings[u"priority"],
2115
1753
use_dbus=use_dbus)
2117
pidfilename = "/var/run/mandos.pid"
2119
pidfile = open(pidfilename, "w")
2121
logger.error("Could not open file %r", pidfilename)
1754
pidfilename = u"/var/run/mandos.pid"
1756
pidfile = open(pidfilename, u"w")
1758
logger.error(u"Could not open file %r", pidfilename)
2124
uid = pwd.getpwnam("_mandos").pw_uid
2125
gid = pwd.getpwnam("_mandos").pw_gid
1761
uid = pwd.getpwnam(u"_mandos").pw_uid
1762
gid = pwd.getpwnam(u"_mandos").pw_gid
2126
1763
except KeyError:
2128
uid = pwd.getpwnam("mandos").pw_uid
2129
gid = pwd.getpwnam("mandos").pw_gid
1765
uid = pwd.getpwnam(u"mandos").pw_uid
1766
gid = pwd.getpwnam(u"mandos").pw_gid
2130
1767
except KeyError:
2132
uid = pwd.getpwnam("nobody").pw_uid
2133
gid = pwd.getpwnam("nobody").pw_gid
1769
uid = pwd.getpwnam(u"nobody").pw_uid
1770
gid = pwd.getpwnam(u"nobody").pw_gid
2134
1771
except KeyError:
2140
except OSError as error:
1777
except OSError, error:
2141
1778
if error[0] != errno.EPERM:
1781
if not debug and not debuglevel:
1782
syslogger.setLevel(logging.WARNING)
1783
console.setLevel(logging.WARNING)
1785
level = getattr(logging, debuglevel.upper())
1786
syslogger.setLevel(level)
1787
console.setLevel(level)
2145
1790
# Enable all possible GnuTLS debugging
2176
1818
# End of Avahi example code
2179
bus_name = dbus.service.BusName("se.recompile.Mandos",
1821
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2180
1822
bus, do_not_queue=True)
2181
old_bus_name = (dbus.service.BusName
2182
("se.bsnet.fukt.Mandos", bus,
2184
except dbus.exceptions.NameExistsException as e:
2185
logger.error(unicode(e) + ", disabling D-Bus")
1823
except dbus.exceptions.NameExistsException, e:
1824
logger.error(unicode(e) + u", disabling D-Bus")
2186
1825
use_dbus = False
2187
server_settings["use_dbus"] = False
1826
server_settings[u"use_dbus"] = False
2188
1827
tcp_server.use_dbus = False
2189
1828
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2190
service = AvahiServiceToSyslog(name =
2191
server_settings["servicename"],
2192
servicetype = "_mandos._tcp",
2193
protocol = protocol, bus = bus)
1829
service = AvahiService(name = server_settings[u"servicename"],
1830
servicetype = u"_mandos._tcp",
1831
protocol = protocol, bus = bus)
2194
1832
if server_settings["interface"]:
2195
1833
service.interface = (if_nametoindex
2196
(str(server_settings["interface"])))
1834
(str(server_settings[u"interface"])))
1837
# Close all input and output, do double fork, etc.
2198
1840
global multiprocessing_manager
2199
1841
multiprocessing_manager = multiprocessing.Manager()
2201
1843
client_class = Client
2203
client_class = functools.partial(ClientDBusTransitional,
2206
client_settings = Client.config_parser(client_config)
2207
old_client_settings = {}
2210
# Get client data and settings from last running state.
2211
if server_settings["restore"]:
2213
with open(stored_state_path, "rb") as stored_state:
2214
clients_data, old_client_settings = (pickle.load
2216
os.remove(stored_state_path)
2217
except IOError as e:
2218
logger.warning("Could not load persistent state: {0}"
2220
if e.errno != errno.ENOENT:
2222
except EOFError as e:
2223
logger.warning("Could not load persistent state: "
2224
"EOFError: {0}".format(e))
2226
with PGPEngine() as pgp:
2227
for client_name, client in clients_data.iteritems():
2228
# Decide which value to use after restoring saved state.
2229
# We have three different values: Old config file,
2230
# new config file, and saved state.
2231
# New config value takes precedence if it differs from old
2232
# config value, otherwise use saved state.
2233
for name, value in client_settings[client_name].items():
2235
# For each value in new config, check if it
2236
# differs from the old config value (Except for
2237
# the "secret" attribute)
2238
if (name != "secret" and
2239
value != old_client_settings[client_name]
2241
client[name] = value
2245
# Clients who has passed its expire date can still be
2246
# enabled if its last checker was successful. Clients
2247
# whose checker succeeded before we stored its state is
2248
# assumed to have successfully run all checkers during
2250
if client["enabled"]:
2251
if datetime.datetime.utcnow() >= client["expires"]:
2252
if not client["last_checked_ok"]:
2254
"disabling client {0} - Client never "
2255
"performed a successful checker"
2256
.format(client_name))
2257
client["enabled"] = False
2258
elif client["last_checker_status"] != 0:
2260
"disabling client {0} - Client "
2261
"last checker failed with error code {1}"
2262
.format(client_name,
2263
client["last_checker_status"]))
2264
client["enabled"] = False
2266
client["expires"] = (datetime.datetime
2268
+ client["timeout"])
2269
logger.debug("Last checker succeeded,"
2270
" keeping {0} enabled"
2271
.format(client_name))
1845
client_class = functools.partial(ClientDBus, bus = bus)
1846
def client_config_items(config, section):
1847
special_settings = {
1848
"approved_by_default":
1849
lambda: config.getboolean(section,
1850
"approved_by_default"),
1852
for name, value in config.items(section):
2273
client["secret"] = (
2274
pgp.decrypt(client["encrypted_secret"],
2275
client_settings[client_name]
2278
# If decryption fails, we use secret from new settings
2279
logger.debug("Failed to decrypt {0} old secret"
2280
.format(client_name))
2281
client["secret"] = (
2282
client_settings[client_name]["secret"])
2285
# Add/remove clients based on new changes made to config
2286
for client_name in (set(old_client_settings)
2287
- set(client_settings)):
2288
del clients_data[client_name]
2289
for client_name in (set(client_settings)
2290
- set(old_client_settings)):
2291
clients_data[client_name] = client_settings[client_name]
2293
# Create all client objects
2294
for client_name, client in clients_data.iteritems():
2295
tcp_server.clients[client_name] = client_class(
2296
name = client_name, settings = client)
1854
yield (name, special_settings[name]())
1858
tcp_server.clients.update(set(
1859
client_class(name = section,
1860
config= dict(client_config_items(
1861
client_config, section)))
1862
for section in client_config.sections()))
2298
1863
if not tcp_server.clients:
2299
logger.warning("No clients defined")
1864
logger.warning(u"No clients defined")
1869
pidfile.write(str(pid) + "\n")
1872
logger.error(u"Could not write to file %r with PID %d",
1875
# "pidfile" was never created
2305
pidfile.write(str(pid) + "\n".encode("utf-8"))
2308
logger.error("Could not write to file %r with PID %d",
2311
# "pidfile" was never created
2314
1880
signal.signal(signal.SIGINT, signal.SIG_IGN)
2316
1881
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2317
1882
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())