/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2014-03-01 09:39:25 UTC
  • Revision ID: teddy@recompile.se-20140301093925-0x6nwf21f0zljk6e
* debian/copyright: Change year to "2014".
* mandos-ctl: - '' -
* mandos-monitor: - '' -
* plugins.d/mandos-client.xml: - '' -

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1
 
#!/usr/bin/python2.7
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
4
4
# Mandos server - give out binary blobs to connecting clients.
88
88
    except ImportError:
89
89
        SO_BINDTODEVICE = None
90
90
 
91
 
if sys.version_info.major == 2:
92
 
    str = unicode
93
 
 
94
 
version = "1.6.9"
 
91
version = "1.6.4"
95
92
stored_state_file = "clients.pickle"
96
93
 
97
94
logger = logging.getLogger()
107
104
        SIOCGIFINDEX = 0x8933  # From /usr/include/linux/sockios.h
108
105
        with contextlib.closing(socket.socket()) as s:
109
106
            ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
110
 
                                struct.pack(b"16s16x", interface))
111
 
        interface_index = struct.unpack("I", ifreq[16:20])[0]
 
107
                                struct.pack(str("16s16x"),
 
108
                                            interface))
 
109
        interface_index = struct.unpack(str("I"),
 
110
                                        ifreq[16:20])[0]
112
111
        return interface_index
113
112
 
114
113
 
115
114
def initlogger(debug, level=logging.WARNING):
116
115
    """init logger and add loglevel"""
117
116
    
118
 
    global syslogger
119
117
    syslogger = (logging.handlers.SysLogHandler
120
118
                 (facility =
121
119
                  logging.handlers.SysLogHandler.LOG_DAEMON,
122
 
                  address = "/dev/log"))
 
120
                  address = str("/dev/log")))
123
121
    syslogger.setFormatter(logging.Formatter
124
122
                           ('Mandos [%(process)d]: %(levelname)s:'
125
123
                            ' %(message)s'))
225
223
class AvahiError(Exception):
226
224
    def __init__(self, value, *args, **kwargs):
227
225
        self.value = value
228
 
        return super(AvahiError, self).__init__(value, *args,
229
 
                                                **kwargs)
 
226
        super(AvahiError, self).__init__(value, *args, **kwargs)
 
227
    def __unicode__(self):
 
228
        return unicode(repr(self.value))
230
229
 
231
230
class AvahiServiceError(AvahiError):
232
231
    pass
275
274
        self.bus = bus
276
275
        self.entry_group_state_changed_match = None
277
276
    
278
 
    def rename(self, remove=True):
 
277
    def rename(self):
279
278
        """Derived from the Avahi example code"""
280
279
        if self.rename_count >= self.max_renames:
281
280
            logger.critical("No suitable Zeroconf service name found"
282
281
                            " after %i retries, exiting.",
283
282
                            self.rename_count)
284
283
            raise AvahiServiceError("Too many renames")
285
 
        self.name = str(self.server
286
 
                        .GetAlternativeServiceName(self.name))
287
 
        self.rename_count += 1
 
284
        self.name = unicode(self.server
 
285
                            .GetAlternativeServiceName(self.name))
288
286
        logger.info("Changing Zeroconf service name to %r ...",
289
287
                    self.name)
290
 
        if remove:
291
 
            self.remove()
 
288
        self.remove()
292
289
        try:
293
290
            self.add()
294
291
        except dbus.exceptions.DBusException as error:
295
 
            if (error.get_dbus_name()
296
 
                == "org.freedesktop.Avahi.CollisionError"):
297
 
                logger.info("Local Zeroconf service name collision.")
298
 
                return self.rename(remove=False)
299
 
            else:
300
 
                logger.critical("D-Bus Exception", exc_info=error)
301
 
                self.cleanup()
302
 
                os._exit(1)
 
292
            logger.critical("D-Bus Exception", exc_info=error)
 
293
            self.cleanup()
 
294
            os._exit(1)
 
295
        self.rename_count += 1
303
296
    
304
297
    def remove(self):
305
298
        """Derived from the Avahi example code"""
343
336
            self.rename()
344
337
        elif state == avahi.ENTRY_GROUP_FAILURE:
345
338
            logger.critical("Avahi: Error in group state changed %s",
346
 
                            str(error))
347
 
            raise AvahiGroupError("State changed: {!s}"
 
339
                            unicode(error))
 
340
            raise AvahiGroupError("State changed: {0!s}"
348
341
                                  .format(error))
349
342
    
350
343
    def cleanup(self):
397
390
 
398
391
 
399
392
class AvahiServiceToSyslog(AvahiService):
400
 
    def rename(self, *args, **kwargs):
 
393
    def rename(self):
401
394
        """Add the new name to the syslog messages"""
402
 
        ret = AvahiService.rename(self, *args, **kwargs)
 
395
        ret = AvahiService.rename(self)
403
396
        syslogger.setFormatter(logging.Formatter
404
 
                               ('Mandos ({}) [%(process)d]:'
 
397
                               ('Mandos ({0}) [%(process)d]:'
405
398
                                ' %(levelname)s: %(message)s'
406
399
                                .format(self.name)))
407
400
        return ret
408
401
 
409
402
 
 
403
def timedelta_to_milliseconds(td):
 
404
    "Convert a datetime.timedelta() to milliseconds"
 
405
    return ((td.days * 24 * 60 * 60 * 1000)
 
406
            + (td.seconds * 1000)
 
407
            + (td.microseconds // 1000))
 
408
 
 
409
 
410
410
class Client(object):
411
411
    """A representation of a client host served by this server.
412
412
    
467
467
                        "enabled": "True",
468
468
                        }
469
469
    
 
470
    def timeout_milliseconds(self):
 
471
        "Return the 'timeout' attribute in milliseconds"
 
472
        return timedelta_to_milliseconds(self.timeout)
 
473
    
 
474
    def extended_timeout_milliseconds(self):
 
475
        "Return the 'extended_timeout' attribute in milliseconds"
 
476
        return timedelta_to_milliseconds(self.extended_timeout)
 
477
    
 
478
    def interval_milliseconds(self):
 
479
        "Return the 'interval' attribute in milliseconds"
 
480
        return timedelta_to_milliseconds(self.interval)
 
481
    
 
482
    def approval_delay_milliseconds(self):
 
483
        return timedelta_to_milliseconds(self.approval_delay)
 
484
    
470
485
    @staticmethod
471
486
    def config_parser(config):
472
487
        """Construct a new dict of client settings of this form:
497
512
                          "rb") as secfile:
498
513
                    client["secret"] = secfile.read()
499
514
            else:
500
 
                raise TypeError("No secret or secfile for section {}"
 
515
                raise TypeError("No secret or secfile for section {0}"
501
516
                                .format(section))
502
517
            client["timeout"] = string_to_delta(section["timeout"])
503
518
            client["extended_timeout"] = string_to_delta(
520
535
            server_settings = {}
521
536
        self.server_settings = server_settings
522
537
        # adding all client settings
523
 
        for setting, value in settings.items():
 
538
        for setting, value in settings.iteritems():
524
539
            setattr(self, setting, value)
525
540
        
526
541
        if self.enabled:
609
624
        if self.checker_initiator_tag is not None:
610
625
            gobject.source_remove(self.checker_initiator_tag)
611
626
        self.checker_initiator_tag = (gobject.timeout_add
612
 
                                      (int(self.interval
613
 
                                           .total_seconds() * 1000),
 
627
                                      (self.interval_milliseconds(),
614
628
                                       self.start_checker))
615
629
        # Schedule a disable() when 'timeout' has passed
616
630
        if self.disable_initiator_tag is not None:
617
631
            gobject.source_remove(self.disable_initiator_tag)
618
632
        self.disable_initiator_tag = (gobject.timeout_add
619
 
                                      (int(self.timeout
620
 
                                           .total_seconds() * 1000),
621
 
                                       self.disable))
 
633
                                   (self.timeout_milliseconds(),
 
634
                                    self.disable))
622
635
        # Also start a new checker *right now*.
623
636
        self.start_checker()
624
637
    
655
668
            self.disable_initiator_tag = None
656
669
        if getattr(self, "enabled", False):
657
670
            self.disable_initiator_tag = (gobject.timeout_add
658
 
                                          (int(timeout.total_seconds()
659
 
                                               * 1000), self.disable))
 
671
                                          (timedelta_to_milliseconds
 
672
                                           (timeout), self.disable))
660
673
            self.expires = datetime.datetime.utcnow() + timeout
661
674
    
662
675
    def need_approval(self):
693
706
        # Start a new checker if needed
694
707
        if self.checker is None:
695
708
            # Escape attributes for the shell
696
 
            escaped_attrs = { attr:
697
 
                                  re.escape(str(getattr(self, attr)))
698
 
                              for attr in self.runtime_expansions }
 
709
            escaped_attrs = dict(
 
710
                (attr, re.escape(unicode(getattr(self, attr))))
 
711
                for attr in
 
712
                self.runtime_expansions)
699
713
            try:
700
714
                command = self.checker_command % escaped_attrs
701
715
            except TypeError as error:
782
796
    # "Set" method, so we fail early here:
783
797
    if byte_arrays and signature != "ay":
784
798
        raise ValueError("Byte arrays not supported for non-'ay'"
785
 
                         " signature {!r}".format(signature))
 
799
                         " signature {0!r}".format(signature))
786
800
    def decorator(func):
787
801
        func._dbus_is_property = True
788
802
        func._dbus_interface = dbus_interface
819
833
    """Decorator to annotate D-Bus methods, signals or properties
820
834
    Usage:
821
835
    
822
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
823
 
                       "org.freedesktop.DBus.Property."
824
 
                       "EmitsChangedSignal": "false"})
825
836
    @dbus_service_property("org.example.Interface", signature="b",
826
837
                           access="r")
 
838
    @dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
 
839
                        "org.freedesktop.DBus.Property."
 
840
                        "EmitsChangedSignal": "false"})
827
841
    def Property_dbus_property(self):
828
842
        return dbus.Boolean(False)
829
843
    """
836
850
class DBusPropertyException(dbus.exceptions.DBusException):
837
851
    """A base class for D-Bus property-related exceptions
838
852
    """
839
 
    pass
 
853
    def __unicode__(self):
 
854
        return unicode(str(self))
 
855
 
840
856
 
841
857
class DBusPropertyAccessException(DBusPropertyException):
842
858
    """A property's access permissions disallows an operation.
865
881
        If called like _is_dbus_thing("method") it returns a function
866
882
        suitable for use as predicate to inspect.getmembers().
867
883
        """
868
 
        return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
 
884
        return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
869
885
                                   False)
870
886
    
871
887
    def _get_all_dbus_things(self, thing):
921
937
            # signatures other than "ay".
922
938
            if prop._dbus_signature != "ay":
923
939
                raise ValueError("Byte arrays not supported for non-"
924
 
                                 "'ay' signature {!r}"
 
940
                                 "'ay' signature {0!r}"
925
941
                                 .format(prop._dbus_signature))
926
942
            value = dbus.ByteArray(b''.join(chr(byte)
927
943
                                            for byte in value))
952
968
                                           value.variant_level+1)
953
969
        return dbus.Dictionary(properties, signature="sv")
954
970
    
955
 
    @dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
956
 
    def PropertiesChanged(self, interface_name, changed_properties,
957
 
                          invalidated_properties):
958
 
        """Standard D-Bus PropertiesChanged() signal, see D-Bus
959
 
        standard.
960
 
        """
961
 
        pass
962
 
    
963
971
    @dbus.service.method(dbus.INTROSPECTABLE_IFACE,
964
972
                         out_signature="s",
965
973
                         path_keyword='object_path',
1000
1008
                                              (prop,
1001
1009
                                               "_dbus_annotations",
1002
1010
                                               {}))
1003
 
                        for name, value in annots.items():
 
1011
                        for name, value in annots.iteritems():
1004
1012
                            ann_tag = document.createElement(
1005
1013
                                "annotation")
1006
1014
                            ann_tag.setAttribute("name", name)
1009
1017
                # Add interface annotation tags
1010
1018
                for annotation, value in dict(
1011
1019
                    itertools.chain.from_iterable(
1012
 
                        annotations().items()
 
1020
                        annotations().iteritems()
1013
1021
                        for name, annotations in
1014
1022
                        self._get_all_dbus_things("interface")
1015
1023
                        if name == if_tag.getAttribute("name")
1016
 
                        )).items():
 
1024
                        )).iteritems():
1017
1025
                    ann_tag = document.createElement("annotation")
1018
1026
                    ann_tag.setAttribute("name", annotation)
1019
1027
                    ann_tag.setAttribute("value", value)
1075
1083
    """
1076
1084
    def wrapper(cls):
1077
1085
        for orig_interface_name, alt_interface_name in (
1078
 
            alt_interface_names.items()):
 
1086
            alt_interface_names.iteritems()):
1079
1087
            attr = {}
1080
1088
            interface_names = set()
1081
1089
            # Go though all attributes of the class
1198
1206
                                        attribute.func_closure)))
1199
1207
            if deprecate:
1200
1208
                # Deprecate all alternate interfaces
1201
 
                iname="_AlternateDBusNames_interface_annotation{}"
 
1209
                iname="_AlternateDBusNames_interface_annotation{0}"
1202
1210
                for interface_name in interface_names:
1203
1211
                    @dbus_interface_annotations(interface_name)
1204
1212
                    def func(self):
1213
1221
            if interface_names:
1214
1222
                # Replace the class with a new subclass of it with
1215
1223
                # methods, signals, etc. as created above.
1216
 
                cls = type(b"{}Alternate".format(cls.__name__),
 
1224
                cls = type(b"{0}Alternate".format(cls.__name__),
1217
1225
                           (cls,), attr)
1218
1226
        return cls
1219
1227
    return wrapper
1232
1240
    runtime_expansions = (Client.runtime_expansions
1233
1241
                          + ("dbus_object_path",))
1234
1242
    
1235
 
    _interface = "se.recompile.Mandos.Client"
1236
 
    
1237
1243
    # dbus.service.Object doesn't use super(), so we can't either.
1238
1244
    
1239
1245
    def __init__(self, bus = None, *args, **kwargs):
1241
1247
        Client.__init__(self, *args, **kwargs)
1242
1248
        # Only now, when this client is initialized, can it show up on
1243
1249
        # the D-Bus
1244
 
        client_object_name = str(self.name).translate(
 
1250
        client_object_name = unicode(self.name).translate(
1245
1251
            {ord("."): ord("_"),
1246
1252
             ord("-"): ord("_")})
1247
1253
        self.dbus_object_path = (dbus.ObjectPath
1251
1257
    
1252
1258
    def notifychangeproperty(transform_func,
1253
1259
                             dbus_name, type_func=lambda x: x,
1254
 
                             variant_level=1, invalidate_only=False,
1255
 
                             _interface=_interface):
 
1260
                             variant_level=1):
1256
1261
        """ Modify a variable so that it's a property which announces
1257
1262
        its changes to DBus.
1258
1263
        
1263
1268
                   to the D-Bus.  Default: no transform
1264
1269
        variant_level: D-Bus variant level.  Default: 1
1265
1270
        """
1266
 
        attrname = "_{}".format(dbus_name)
 
1271
        attrname = "_{0}".format(dbus_name)
1267
1272
        def setter(self, value):
1268
1273
            if hasattr(self, "dbus_object_path"):
1269
1274
                if (not hasattr(self, attrname) or
1270
1275
                    type_func(getattr(self, attrname, None))
1271
1276
                    != type_func(value)):
1272
 
                    if invalidate_only:
1273
 
                        self.PropertiesChanged(_interface,
1274
 
                                               dbus.Dictionary(),
1275
 
                                               dbus.Array
1276
 
                                               ((dbus_name,)))
1277
 
                    else:
1278
 
                        dbus_value = transform_func(type_func(value),
1279
 
                                                    variant_level
1280
 
                                                    =variant_level)
1281
 
                        self.PropertyChanged(dbus.String(dbus_name),
1282
 
                                             dbus_value)
1283
 
                        self.PropertiesChanged(_interface,
1284
 
                                               dbus.Dictionary({
1285
 
                                    dbus.String(dbus_name):
1286
 
                                        dbus_value }), dbus.Array())
 
1277
                    dbus_value = transform_func(type_func(value),
 
1278
                                                variant_level
 
1279
                                                =variant_level)
 
1280
                    self.PropertyChanged(dbus.String(dbus_name),
 
1281
                                         dbus_value)
1287
1282
            setattr(self, attrname, value)
1288
1283
        
1289
1284
        return property(lambda self: getattr(self, attrname), setter)
1309
1304
    approval_delay = notifychangeproperty(dbus.UInt64,
1310
1305
                                          "ApprovalDelay",
1311
1306
                                          type_func =
1312
 
                                          lambda td: td.total_seconds()
1313
 
                                          * 1000)
 
1307
                                          timedelta_to_milliseconds)
1314
1308
    approval_duration = notifychangeproperty(
1315
1309
        dbus.UInt64, "ApprovalDuration",
1316
 
        type_func = lambda td: td.total_seconds() * 1000)
 
1310
        type_func = timedelta_to_milliseconds)
1317
1311
    host = notifychangeproperty(dbus.String, "Host")
1318
1312
    timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1319
 
                                   type_func = lambda td:
1320
 
                                       td.total_seconds() * 1000)
 
1313
                                   type_func =
 
1314
                                   timedelta_to_milliseconds)
1321
1315
    extended_timeout = notifychangeproperty(
1322
1316
        dbus.UInt64, "ExtendedTimeout",
1323
 
        type_func = lambda td: td.total_seconds() * 1000)
 
1317
        type_func = timedelta_to_milliseconds)
1324
1318
    interval = notifychangeproperty(dbus.UInt64,
1325
1319
                                    "Interval",
1326
1320
                                    type_func =
1327
 
                                    lambda td: td.total_seconds()
1328
 
                                    * 1000)
 
1321
                                    timedelta_to_milliseconds)
1329
1322
    checker_command = notifychangeproperty(dbus.String, "Checker")
1330
 
    secret = notifychangeproperty(dbus.ByteArray, "Secret",
1331
 
                                  invalidate_only=True)
1332
1323
    
1333
1324
    del notifychangeproperty
1334
1325
    
1376
1367
    
1377
1368
    def approve(self, value=True):
1378
1369
        self.approved = value
1379
 
        gobject.timeout_add(int(self.approval_duration.total_seconds()
1380
 
                                * 1000), self._reset_approved)
 
1370
        gobject.timeout_add(timedelta_to_milliseconds
 
1371
                            (self.approval_duration),
 
1372
                            self._reset_approved)
1381
1373
        self.send_changedstate()
1382
1374
    
1383
1375
    ## D-Bus methods, signals & properties
 
1376
    _interface = "se.recompile.Mandos.Client"
1384
1377
    
1385
1378
    ## Interfaces
1386
1379
    
 
1380
    @dbus_interface_annotations(_interface)
 
1381
    def _foo(self):
 
1382
        return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
 
1383
                     "false"}
 
1384
    
1387
1385
    ## Signals
1388
1386
    
1389
1387
    # CheckerCompleted - signal
1399
1397
        pass
1400
1398
    
1401
1399
    # PropertyChanged - signal
1402
 
    @dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1403
1400
    @dbus.service.signal(_interface, signature="sv")
1404
1401
    def PropertyChanged(self, property, value):
1405
1402
        "D-Bus signal"
1481
1478
                           access="readwrite")
1482
1479
    def ApprovalDelay_dbus_property(self, value=None):
1483
1480
        if value is None:       # get
1484
 
            return dbus.UInt64(self.approval_delay.total_seconds()
1485
 
                               * 1000)
 
1481
            return dbus.UInt64(self.approval_delay_milliseconds())
1486
1482
        self.approval_delay = datetime.timedelta(0, 0, 0, value)
1487
1483
    
1488
1484
    # ApprovalDuration - property
1490
1486
                           access="readwrite")
1491
1487
    def ApprovalDuration_dbus_property(self, value=None):
1492
1488
        if value is None:       # get
1493
 
            return dbus.UInt64(self.approval_duration.total_seconds()
1494
 
                               * 1000)
 
1489
            return dbus.UInt64(timedelta_to_milliseconds(
 
1490
                    self.approval_duration))
1495
1491
        self.approval_duration = datetime.timedelta(0, 0, 0, value)
1496
1492
    
1497
1493
    # Name - property
1510
1506
    def Host_dbus_property(self, value=None):
1511
1507
        if value is None:       # get
1512
1508
            return dbus.String(self.host)
1513
 
        self.host = str(value)
 
1509
        self.host = unicode(value)
1514
1510
    
1515
1511
    # Created - property
1516
1512
    @dbus_service_property(_interface, signature="s", access="read")
1563
1559
                           access="readwrite")
1564
1560
    def Timeout_dbus_property(self, value=None):
1565
1561
        if value is None:       # get
1566
 
            return dbus.UInt64(self.timeout.total_seconds() * 1000)
 
1562
            return dbus.UInt64(self.timeout_milliseconds())
1567
1563
        old_timeout = self.timeout
1568
1564
        self.timeout = datetime.timedelta(0, 0, 0, value)
1569
1565
        # Reschedule disabling
1580
1576
                gobject.source_remove(self.disable_initiator_tag)
1581
1577
                self.disable_initiator_tag = (
1582
1578
                    gobject.timeout_add(
1583
 
                        int((self.expires - now).total_seconds()
1584
 
                            * 1000), self.disable))
 
1579
                        timedelta_to_milliseconds(self.expires - now),
 
1580
                        self.disable))
1585
1581
    
1586
1582
    # ExtendedTimeout - property
1587
1583
    @dbus_service_property(_interface, signature="t",
1588
1584
                           access="readwrite")
1589
1585
    def ExtendedTimeout_dbus_property(self, value=None):
1590
1586
        if value is None:       # get
1591
 
            return dbus.UInt64(self.extended_timeout.total_seconds()
1592
 
                               * 1000)
 
1587
            return dbus.UInt64(self.extended_timeout_milliseconds())
1593
1588
        self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1594
1589
    
1595
1590
    # Interval - property
1597
1592
                           access="readwrite")
1598
1593
    def Interval_dbus_property(self, value=None):
1599
1594
        if value is None:       # get
1600
 
            return dbus.UInt64(self.interval.total_seconds() * 1000)
 
1595
            return dbus.UInt64(self.interval_milliseconds())
1601
1596
        self.interval = datetime.timedelta(0, 0, 0, value)
1602
1597
        if getattr(self, "checker_initiator_tag", None) is None:
1603
1598
            return
1614
1609
    def Checker_dbus_property(self, value=None):
1615
1610
        if value is None:       # get
1616
1611
            return dbus.String(self.checker_command)
1617
 
        self.checker_command = str(value)
 
1612
        self.checker_command = unicode(value)
1618
1613
    
1619
1614
    # CheckerRunning - property
1620
1615
    @dbus_service_property(_interface, signature="b",
1636
1631
    @dbus_service_property(_interface, signature="ay",
1637
1632
                           access="write", byte_arrays=True)
1638
1633
    def Secret_dbus_property(self, value):
1639
 
        self.secret = bytes(value)
 
1634
        self.secret = str(value)
1640
1635
    
1641
1636
    del _interface
1642
1637
 
1676
1671
    def handle(self):
1677
1672
        with contextlib.closing(self.server.child_pipe) as child_pipe:
1678
1673
            logger.info("TCP connection from: %s",
1679
 
                        str(self.client_address))
 
1674
                        unicode(self.client_address))
1680
1675
            logger.debug("Pipe FD: %d",
1681
1676
                         self.server.child_pipe.fileno())
1682
1677
            
1763
1758
                        if self.server.use_dbus:
1764
1759
                            # Emit D-Bus signal
1765
1760
                            client.NeedApproval(
1766
 
                                client.approval_delay.total_seconds()
1767
 
                                * 1000, client.approved_by_default)
 
1761
                                client.approval_delay_milliseconds(),
 
1762
                                client.approved_by_default)
1768
1763
                    else:
1769
1764
                        logger.warning("Client %s was not approved",
1770
1765
                                       client.name)
1776
1771
                    #wait until timeout or approved
1777
1772
                    time = datetime.datetime.now()
1778
1773
                    client.changedstate.acquire()
1779
 
                    client.changedstate.wait(delay.total_seconds())
 
1774
                    client.changedstate.wait(
 
1775
                        float(timedelta_to_milliseconds(delay)
 
1776
                              / 1000))
1780
1777
                    client.changedstate.release()
1781
1778
                    time2 = datetime.datetime.now()
1782
1779
                    if (time2 - time) >= delay:
1981
1978
                try:
1982
1979
                    self.socket.setsockopt(socket.SOL_SOCKET,
1983
1980
                                           SO_BINDTODEVICE,
1984
 
                                           (self.interface + "\0")
1985
 
                                           .encode("utf-8"))
 
1981
                                           str(self.interface + '\0'))
1986
1982
                except socket.error as error:
1987
1983
                    if error.errno == errno.EPERM:
1988
1984
                        logger.error("No permission to bind to"
2191
2187
    token_duration = Token(re.compile(r"P"), None,
2192
2188
                           frozenset((token_year, token_month,
2193
2189
                                      token_day, token_time,
2194
 
                                      token_week)))
 
2190
                                      token_week))),
2195
2191
    # Define starting values
2196
2192
    value = datetime.timedelta() # Value so far
2197
2193
    found_token = None
2198
 
    followers = frozenset((token_duration,)) # Following valid tokens
 
2194
    followers = frozenset(token_duration,) # Following valid tokens
2199
2195
    s = duration                # String left to parse
2200
2196
    # Loop until end token is found
2201
2197
    while found_token is not token_end:
2248
2244
    timevalue = datetime.timedelta(0)
2249
2245
    for s in interval.split():
2250
2246
        try:
2251
 
            suffix = s[-1]
 
2247
            suffix = unicode(s[-1])
2252
2248
            value = int(s[:-1])
2253
2249
            if suffix == "d":
2254
2250
                delta = datetime.timedelta(value)
2261
2257
            elif suffix == "w":
2262
2258
                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2263
2259
            else:
2264
 
                raise ValueError("Unknown suffix {!r}"
 
2260
                raise ValueError("Unknown suffix {0!r}"
2265
2261
                                 .format(suffix))
2266
2262
        except IndexError as e:
2267
2263
            raise ValueError(*(e.args))
2284
2280
        # Close all standard open file descriptors
2285
2281
        null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2286
2282
        if not stat.S_ISCHR(os.fstat(null).st_mode):
2287
 
            raise OSError(errno.ENODEV, "{} not a character device"
 
2283
            raise OSError(errno.ENODEV,
 
2284
                          "{0} not a character device"
2288
2285
                          .format(os.devnull))
2289
2286
        os.dup2(null, sys.stdin.fileno())
2290
2287
        os.dup2(null, sys.stdout.fileno())
2300
2297
    
2301
2298
    parser = argparse.ArgumentParser()
2302
2299
    parser.add_argument("-v", "--version", action="version",
2303
 
                        version = "%(prog)s {}".format(version),
 
2300
                        version = "%(prog)s {0}".format(version),
2304
2301
                        help="show version number and exit")
2305
2302
    parser.add_argument("-i", "--interface", metavar="IF",
2306
2303
                        help="Bind to interface IF")
2339
2336
                        help="Directory to save/restore state in")
2340
2337
    parser.add_argument("--foreground", action="store_true",
2341
2338
                        help="Run in foreground", default=None)
2342
 
    parser.add_argument("--no-zeroconf", action="store_false",
2343
 
                        dest="zeroconf", help="Do not use Zeroconf",
2344
 
                        default=None)
2345
2339
    
2346
2340
    options = parser.parse_args()
2347
2341
    
2365
2359
                        "socket": "",
2366
2360
                        "statedir": "/var/lib/mandos",
2367
2361
                        "foreground": "False",
2368
 
                        "zeroconf": "True",
2369
2362
                        }
2370
2363
    
2371
2364
    # Parse config file for server-global settings
2398
2391
    for option in ("interface", "address", "port", "debug",
2399
2392
                   "priority", "servicename", "configdir",
2400
2393
                   "use_dbus", "use_ipv6", "debuglevel", "restore",
2401
 
                   "statedir", "socket", "foreground", "zeroconf"):
 
2394
                   "statedir", "socket", "foreground"):
2402
2395
        value = getattr(options, option)
2403
2396
        if value is not None:
2404
2397
            server_settings[option] = value
2405
2398
    del options
2406
2399
    # Force all strings to be unicode
2407
2400
    for option in server_settings.keys():
2408
 
        if isinstance(server_settings[option], bytes):
2409
 
            server_settings[option] = (server_settings[option]
2410
 
                                       .decode("utf-8"))
 
2401
        if type(server_settings[option]) is str:
 
2402
            server_settings[option] = unicode(server_settings[option])
2411
2403
    # Force all boolean options to be boolean
2412
2404
    for option in ("debug", "use_dbus", "use_ipv6", "restore",
2413
 
                   "foreground", "zeroconf"):
 
2405
                   "foreground"):
2414
2406
        server_settings[option] = bool(server_settings[option])
2415
2407
    # Debug implies foreground
2416
2408
    if server_settings["debug"]:
2419
2411
    
2420
2412
    ##################################################################
2421
2413
    
2422
 
    if (not server_settings["zeroconf"] and
2423
 
        not (server_settings["port"]
2424
 
             or server_settings["socket"] != "")):
2425
 
            parser.error("Needs port or socket to work without"
2426
 
                         " Zeroconf")
2427
 
    
2428
2414
    # For convenience
2429
2415
    debug = server_settings["debug"]
2430
2416
    debuglevel = server_settings["debuglevel"]
2433
2419
    stored_state_path = os.path.join(server_settings["statedir"],
2434
2420
                                     stored_state_file)
2435
2421
    foreground = server_settings["foreground"]
2436
 
    zeroconf = server_settings["zeroconf"]
2437
2422
    
2438
2423
    if debug:
2439
2424
        initlogger(debug, logging.DEBUG)
2446
2431
    
2447
2432
    if server_settings["servicename"] != "Mandos":
2448
2433
        syslogger.setFormatter(logging.Formatter
2449
 
                               ('Mandos ({}) [%(process)d]:'
 
2434
                               ('Mandos ({0}) [%(process)d]:'
2450
2435
                                ' %(levelname)s: %(message)s'
2451
2436
                                .format(server_settings
2452
2437
                                        ["servicename"])))
2460
2445
    global mandos_dbus_service
2461
2446
    mandos_dbus_service = None
2462
2447
    
2463
 
    socketfd = None
2464
 
    if server_settings["socket"] != "":
2465
 
        socketfd = server_settings["socket"]
2466
2448
    tcp_server = MandosServer((server_settings["address"],
2467
2449
                               server_settings["port"]),
2468
2450
                              ClientHandler,
2472
2454
                              gnutls_priority=
2473
2455
                              server_settings["priority"],
2474
2456
                              use_dbus=use_dbus,
2475
 
                              socketfd=socketfd)
 
2457
                              socketfd=(server_settings["socket"]
 
2458
                                        or None))
2476
2459
    if not foreground:
2477
2460
        pidfilename = "/run/mandos.pid"
2478
2461
        if not os.path.isdir("/run/."):
2548
2531
            use_dbus = False
2549
2532
            server_settings["use_dbus"] = False
2550
2533
            tcp_server.use_dbus = False
2551
 
    if zeroconf:
2552
 
        protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2553
 
        service = AvahiServiceToSyslog(name =
2554
 
                                       server_settings["servicename"],
2555
 
                                       servicetype = "_mandos._tcp",
2556
 
                                       protocol = protocol, bus = bus)
2557
 
        if server_settings["interface"]:
2558
 
            service.interface = (if_nametoindex
2559
 
                                 (server_settings["interface"]
2560
 
                                  .encode("utf-8")))
 
2534
    protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
 
2535
    service = AvahiServiceToSyslog(name =
 
2536
                                   server_settings["servicename"],
 
2537
                                   servicetype = "_mandos._tcp",
 
2538
                                   protocol = protocol, bus = bus)
 
2539
    if server_settings["interface"]:
 
2540
        service.interface = (if_nametoindex
 
2541
                             (str(server_settings["interface"])))
2561
2542
    
2562
2543
    global multiprocessing_manager
2563
2544
    multiprocessing_manager = multiprocessing.Manager()
2587
2568
            os.remove(stored_state_path)
2588
2569
        except IOError as e:
2589
2570
            if e.errno == errno.ENOENT:
2590
 
                logger.warning("Could not load persistent state: {}"
 
2571
                logger.warning("Could not load persistent state: {0}"
2591
2572
                                .format(os.strerror(e.errno)))
2592
2573
            else:
2593
2574
                logger.critical("Could not load persistent state:",
2598
2579
                           "EOFError:", exc_info=e)
2599
2580
    
2600
2581
    with PGPEngine() as pgp:
2601
 
        for client_name, client in clients_data.items():
 
2582
        for client_name, client in clients_data.iteritems():
2602
2583
            # Skip removed clients
2603
2584
            if client_name not in client_settings:
2604
2585
                continue
2629
2610
                if datetime.datetime.utcnow() >= client["expires"]:
2630
2611
                    if not client["last_checked_ok"]:
2631
2612
                        logger.warning(
2632
 
                            "disabling client {} - Client never "
 
2613
                            "disabling client {0} - Client never "
2633
2614
                            "performed a successful checker"
2634
2615
                            .format(client_name))
2635
2616
                        client["enabled"] = False
2636
2617
                    elif client["last_checker_status"] != 0:
2637
2618
                        logger.warning(
2638
 
                            "disabling client {} - Client last"
2639
 
                            " checker failed with error code {}"
 
2619
                            "disabling client {0} - Client "
 
2620
                            "last checker failed with error code {1}"
2640
2621
                            .format(client_name,
2641
2622
                                    client["last_checker_status"]))
2642
2623
                        client["enabled"] = False
2645
2626
                                             .utcnow()
2646
2627
                                             + client["timeout"])
2647
2628
                        logger.debug("Last checker succeeded,"
2648
 
                                     " keeping {} enabled"
 
2629
                                     " keeping {0} enabled"
2649
2630
                                     .format(client_name))
2650
2631
            try:
2651
2632
                client["secret"] = (
2654
2635
                                ["secret"]))
2655
2636
            except PGPError:
2656
2637
                # If decryption fails, we use secret from new settings
2657
 
                logger.debug("Failed to decrypt {} old secret"
 
2638
                logger.debug("Failed to decrypt {0} old secret"
2658
2639
                             .format(client_name))
2659
2640
                client["secret"] = (
2660
2641
                    client_settings[client_name]["secret"])
2668
2649
        clients_data[client_name] = client_settings[client_name]
2669
2650
    
2670
2651
    # Create all client objects
2671
 
    for client_name, client in clients_data.items():
 
2652
    for client_name, client in clients_data.iteritems():
2672
2653
        tcp_server.clients[client_name] = client_class(
2673
2654
            name = client_name, settings = client,
2674
2655
            server_settings = server_settings)
2681
2662
            try:
2682
2663
                with pidfile:
2683
2664
                    pid = os.getpid()
2684
 
                    pidfile.write("{}\n".format(pid).encode("utf-8"))
 
2665
                    pidfile.write(str(pid) + "\n".encode("utf-8"))
2685
2666
            except IOError:
2686
2667
                logger.error("Could not write to file %r with PID %d",
2687
2668
                             pidfilename, pid)
2733
2714
            def GetAllClientsWithProperties(self):
2734
2715
                "D-Bus method"
2735
2716
                return dbus.Dictionary(
2736
 
                    { c.dbus_object_path: c.GetAll("")
2737
 
                      for c in tcp_server.clients.itervalues() },
 
2717
                    ((c.dbus_object_path, c.GetAll(""))
 
2718
                     for c in tcp_server.clients.itervalues()),
2738
2719
                    signature="oa{sv}")
2739
2720
            
2740
2721
            @dbus.service.method(_interface, in_signature="o")
2757
2738
    
2758
2739
    def cleanup():
2759
2740
        "Cleanup function; run on exit"
2760
 
        if zeroconf:
2761
 
            service.cleanup()
 
2741
        service.cleanup()
2762
2742
        
2763
2743
        multiprocessing.active_children()
2764
2744
        wnull.close()
2778
2758
                
2779
2759
                # A list of attributes that can not be pickled
2780
2760
                # + secret.
2781
 
                exclude = { "bus", "changedstate", "secret",
2782
 
                            "checker", "server_settings" }
 
2761
                exclude = set(("bus", "changedstate", "secret",
 
2762
                               "checker", "server_settings"))
2783
2763
                for name, typ in (inspect.getmembers
2784
2764
                                  (dbus.service.Object)):
2785
2765
                    exclude.add(name)
2808
2788
                except NameError:
2809
2789
                    pass
2810
2790
            if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2811
 
                logger.warning("Could not save persistent state: {}"
 
2791
                logger.warning("Could not save persistent state: {0}"
2812
2792
                               .format(os.strerror(e.errno)))
2813
2793
            else:
2814
2794
                logger.warning("Could not save persistent state:",
2843
2823
    tcp_server.server_activate()
2844
2824
    
2845
2825
    # Find out what port we got
2846
 
    if zeroconf:
2847
 
        service.port = tcp_server.socket.getsockname()[1]
 
2826
    service.port = tcp_server.socket.getsockname()[1]
2848
2827
    if use_ipv6:
2849
2828
        logger.info("Now listening on address %r, port %d,"
2850
2829
                    " flowinfo %d, scope_id %d",
2856
2835
    #service.interface = tcp_server.socket.getsockname()[3]
2857
2836
    
2858
2837
    try:
2859
 
        if zeroconf:
2860
 
            # From the Avahi example code
2861
 
            try:
2862
 
                service.activate()
2863
 
            except dbus.exceptions.DBusException as error:
2864
 
                logger.critical("D-Bus Exception", exc_info=error)
2865
 
                cleanup()
2866
 
                sys.exit(1)
2867
 
            # End of Avahi example code
 
2838
        # From the Avahi example code
 
2839
        try:
 
2840
            service.activate()
 
2841
        except dbus.exceptions.DBusException as error:
 
2842
            logger.critical("D-Bus Exception", exc_info=error)
 
2843
            cleanup()
 
2844
            sys.exit(1)
 
2845
        # End of Avahi example code
2868
2846
        
2869
2847
        gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2870
2848
                             lambda *args, **kwargs: