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* debian/mandos-client.postinst: Converted to Bourne shell.  Also
                                 minor message change.
* debian/mandos-client.postrm: Minor message change.
* debian/mandos.postinst: Converted to Bourne shell.  Also minor
                          message change.
* debian/mandos.prerm: Minor message change.

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Lines of Context:
mandos
11
11
# and some lines in "main".
12
12
# 
13
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# Everything else is
14
 
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
 
14
# Copyright © 2008,2009 Teddy Hogeborn
 
15
# Copyright © 2008,2009 Björn Påhlsson
15
16
# 
16
17
# This program is free software: you can redistribute it and/or modify
17
18
# it under the terms of the GNU General Public License as published by
24
25
#     GNU General Public License for more details.
25
26
# 
26
27
# You should have received a copy of the GNU General Public License
27
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
28
# along with this program.  If not, see
 
29
# <http://www.gnu.org/licenses/>.
28
30
# 
29
31
# Contact the authors at <mandos@fukt.bsnet.se>.
30
32
# 
31
33
 
32
 
from __future__ import division
 
34
from __future__ import division, with_statement, absolute_import
33
35
 
34
36
import SocketServer
35
37
import socket
36
 
import select
37
 
from optparse import OptionParser
 
38
import optparse
38
39
import datetime
39
40
import errno
40
41
import gnutls.crypto
54
55
import stat
55
56
import logging
56
57
import logging.handlers
 
58
import pwd
 
59
from contextlib import closing
57
60
 
58
61
import dbus
 
62
import dbus.service
59
63
import gobject
60
64
import avahi
61
65
from dbus.mainloop.glib import DBusGMainLoop
62
66
import ctypes
 
67
import ctypes.util
63
68
 
64
 
version = "1.0"
 
69
version = "1.0.5"
65
70
 
66
71
logger = logging.Logger('mandos')
67
 
syslogger = logging.handlers.SysLogHandler\
68
 
            (facility = logging.handlers.SysLogHandler.LOG_DAEMON,
69
 
             address = "/dev/log")
70
 
syslogger.setFormatter(logging.Formatter\
71
 
                        ('Mandos: %(levelname)s: %(message)s'))
 
72
syslogger = (logging.handlers.SysLogHandler
 
73
             (facility = logging.handlers.SysLogHandler.LOG_DAEMON,
 
74
              address = "/dev/log"))
 
75
syslogger.setFormatter(logging.Formatter
 
76
                       ('Mandos: %(levelname)s: %(message)s'))
72
77
logger.addHandler(syslogger)
73
78
 
74
79
console = logging.StreamHandler()
77
82
logger.addHandler(console)
78
83
 
79
84
class AvahiError(Exception):
80
 
    def __init__(self, value):
 
85
    def __init__(self, value, *args, **kwargs):
81
86
        self.value = value
82
 
    def __str__(self):
83
 
        return repr(self.value)
 
87
        super(AvahiError, self).__init__(value, *args, **kwargs)
 
88
    def __unicode__(self):
 
89
        return unicode(repr(self.value))
84
90
 
85
91
class AvahiServiceError(AvahiError):
86
92
    pass
106
112
                  a sensible number of times
107
113
    """
108
114
    def __init__(self, interface = avahi.IF_UNSPEC, name = None,
109
 
                 type = None, port = None, TXT = None, domain = "",
110
 
                 host = "", max_renames = 32768):
 
115
                 servicetype = None, port = None, TXT = None,
 
116
                 domain = "", host = "", max_renames = 32768):
111
117
        self.interface = interface
112
118
        self.name = name
113
 
        self.type = type
 
119
        self.type = servicetype
114
120
        self.port = port
115
 
        if TXT is None:
116
 
            self.TXT = []
117
 
        else:
118
 
            self.TXT = TXT
 
121
        self.TXT = TXT if TXT is not None else []
119
122
        self.domain = domain
120
123
        self.host = host
121
124
        self.rename_count = 0
123
126
    def rename(self):
124
127
        """Derived from the Avahi example code"""
125
128
        if self.rename_count >= self.max_renames:
126
 
            logger.critical(u"No suitable service name found after %i"
127
 
                            u" retries, exiting.", rename_count)
128
 
            raise AvahiServiceError("Too many renames")
 
129
            logger.critical(u"No suitable Zeroconf service name found"
 
130
                            u" after %i retries, exiting.",
 
131
                            self.rename_count)
 
132
            raise AvahiServiceError(u"Too many renames")
129
133
        self.name = server.GetAlternativeServiceName(self.name)
130
 
        logger.info(u"Changing name to %r ...", str(self.name))
131
 
        syslogger.setFormatter(logging.Formatter\
 
134
        logger.info(u"Changing Zeroconf service name to %r ...",
 
135
                    str(self.name))
 
136
        syslogger.setFormatter(logging.Formatter
132
137
                               ('Mandos (%s): %%(levelname)s:'
133
 
                               ' %%(message)s' % self.name))
 
138
                                ' %%(message)s' % self.name))
134
139
        self.remove()
135
140
        self.add()
136
141
        self.rename_count += 1
142
147
        """Derived from the Avahi example code"""
143
148
        global group
144
149
        if group is None:
145
 
            group = dbus.Interface\
146
 
                    (bus.get_object(avahi.DBUS_NAME,
 
150
            group = dbus.Interface(bus.get_object
 
151
                                   (avahi.DBUS_NAME,
147
152
                                    server.EntryGroupNew()),
148
 
                     avahi.DBUS_INTERFACE_ENTRY_GROUP)
 
153
                                   avahi.DBUS_INTERFACE_ENTRY_GROUP)
149
154
            group.connect_to_signal('StateChanged',
150
155
                                    entry_group_state_changed)
151
 
        logger.debug(u"Adding service '%s' of type '%s' ...",
 
156
        logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
152
157
                     service.name, service.type)
153
158
        group.AddService(
154
159
                self.interface,         # interface
165
170
# End of Avahi example code
166
171
 
167
172
 
168
 
class Client(object):
 
173
def _datetime_to_dbus(dt, variant_level=0):
 
174
    """Convert a UTC datetime.datetime() to a D-Bus type."""
 
175
    return dbus.String(dt.isoformat(), variant_level=variant_level)
 
176
 
 
177
 
 
178
class Client(dbus.service.Object):
169
179
    """A representation of a client host served by this server.
170
180
    Attributes:
171
 
    name:      string; from the config file, used in log messages
 
181
    name:       string; from the config file, used in log messages
172
182
    fingerprint: string (40 or 32 hexadecimal digits); used to
173
183
                 uniquely identify the client
174
 
    secret:    bytestring; sent verbatim (over TLS) to client
175
 
    host:      string; available for use by the checker command
176
 
    created:   datetime.datetime(); object creation, not client host
177
 
    last_checked_ok: datetime.datetime() or None if not yet checked OK
178
 
    timeout:   datetime.timedelta(); How long from last_checked_ok
179
 
                                     until this client is invalid
180
 
    interval:  datetime.timedelta(); How often to start a new checker
181
 
    stop_hook: If set, called by stop() as stop_hook(self)
182
 
    checker:   subprocess.Popen(); a running checker process used
183
 
                                   to see if the client lives.
184
 
                                   'None' if no process is running.
 
184
    secret:     bytestring; sent verbatim (over TLS) to client
 
185
    host:       string; available for use by the checker command
 
186
    created:    datetime.datetime(); (UTC) object creation
 
187
    last_enabled: datetime.datetime(); (UTC)
 
188
    enabled:    bool()
 
189
    last_checked_ok: datetime.datetime(); (UTC) or None
 
190
    timeout:    datetime.timedelta(); How long from last_checked_ok
 
191
                                      until this client is invalid
 
192
    interval:   datetime.timedelta(); How often to start a new checker
 
193
    disable_hook:  If set, called by disable() as disable_hook(self)
 
194
    checker:    subprocess.Popen(); a running checker process used
 
195
                                    to see if the client lives.
 
196
                                    'None' if no process is running.
185
197
    checker_initiator_tag: a gobject event source tag, or None
186
 
    stop_initiator_tag:    - '' -
 
198
    disable_initiator_tag:    - '' -
187
199
    checker_callback_tag:  - '' -
188
200
    checker_command: string; External command which is run to check if
189
201
                     client lives.  %() expansions are done at
190
202
                     runtime with vars(self) as dict, so that for
191
203
                     instance %(name)s can be used in the command.
192
 
    Private attibutes:
193
 
    _timeout: Real variable for 'timeout'
194
 
    _interval: Real variable for 'interval'
195
 
    _timeout_milliseconds: Used when calling gobject.timeout_add()
196
 
    _interval_milliseconds: - '' -
 
204
    use_dbus: bool(); Whether to provide D-Bus interface and signals
 
205
    dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
197
206
    """
198
 
    def _set_timeout(self, timeout):
199
 
        "Setter function for 'timeout' attribute"
200
 
        self._timeout = timeout
201
 
        self._timeout_milliseconds = ((self.timeout.days
202
 
                                       * 24 * 60 * 60 * 1000)
203
 
                                      + (self.timeout.seconds * 1000)
204
 
                                      + (self.timeout.microseconds
205
 
                                         // 1000))
206
 
    timeout = property(lambda self: self._timeout,
207
 
                       _set_timeout)
208
 
    del _set_timeout
209
 
    def _set_interval(self, interval):
210
 
        "Setter function for 'interval' attribute"
211
 
        self._interval = interval
212
 
        self._interval_milliseconds = ((self.interval.days
213
 
                                        * 24 * 60 * 60 * 1000)
214
 
                                       + (self.interval.seconds
215
 
                                          * 1000)
216
 
                                       + (self.interval.microseconds
217
 
                                          // 1000))
218
 
    interval = property(lambda self: self._interval,
219
 
                        _set_interval)
220
 
    del _set_interval
221
 
    def __init__(self, name = None, stop_hook=None, config={}):
 
207
    def timeout_milliseconds(self):
 
208
        "Return the 'timeout' attribute in milliseconds"
 
209
        return ((self.timeout.days * 24 * 60 * 60 * 1000)
 
210
                + (self.timeout.seconds * 1000)
 
211
                + (self.timeout.microseconds // 1000))
 
212
    
 
213
    def interval_milliseconds(self):
 
214
        "Return the 'interval' attribute in milliseconds"
 
215
        return ((self.interval.days * 24 * 60 * 60 * 1000)
 
216
                + (self.interval.seconds * 1000)
 
217
                + (self.interval.microseconds // 1000))
 
218
    
 
219
    def __init__(self, name = None, disable_hook=None, config=None,
 
220
                 use_dbus=True):
222
221
        """Note: the 'checker' key in 'config' sets the
223
222
        'checker_command' attribute and *not* the 'checker'
224
223
        attribute."""
225
224
        self.name = name
 
225
        if config is None:
 
226
            config = {}
226
227
        logger.debug(u"Creating client %r", self.name)
 
228
        self.use_dbus = use_dbus
 
229
        if self.use_dbus:
 
230
            self.dbus_object_path = (dbus.ObjectPath
 
231
                                     ("/Mandos/clients/"
 
232
                                      + self.name.replace(".", "_")))
 
233
            dbus.service.Object.__init__(self, bus,
 
234
                                         self.dbus_object_path)
227
235
        # Uppercase and remove spaces from fingerprint for later
228
236
        # comparison purposes with return value from the fingerprint()
229
237
        # function
230
 
        self.fingerprint = config["fingerprint"].upper()\
231
 
                           .replace(u" ", u"")
 
238
        self.fingerprint = (config["fingerprint"].upper()
 
239
                            .replace(u" ", u""))
232
240
        logger.debug(u"  Fingerprint: %s", self.fingerprint)
233
241
        if "secret" in config:
234
242
            self.secret = config["secret"].decode(u"base64")
235
243
        elif "secfile" in config:
236
 
            sf = open(config["secfile"])
237
 
            self.secret = sf.read()
238
 
            sf.close()
 
244
            with closing(open(os.path.expanduser
 
245
                              (os.path.expandvars
 
246
                               (config["secfile"])))) as secfile:
 
247
                self.secret = secfile.read()
239
248
        else:
240
249
            raise TypeError(u"No secret or secfile for client %s"
241
250
                            % self.name)
242
251
        self.host = config.get("host", "")
243
 
        self.created = datetime.datetime.now()
 
252
        self.created = datetime.datetime.utcnow()
 
253
        self.enabled = False
 
254
        self.last_enabled = None
244
255
        self.last_checked_ok = None
245
256
        self.timeout = string_to_delta(config["timeout"])
246
257
        self.interval = string_to_delta(config["interval"])
247
 
        self.stop_hook = stop_hook
 
258
        self.disable_hook = disable_hook
248
259
        self.checker = None
249
260
        self.checker_initiator_tag = None
250
 
        self.stop_initiator_tag = None
 
261
        self.disable_initiator_tag = None
251
262
        self.checker_callback_tag = None
252
 
        self.check_command = config["checker"]
253
 
    def start(self):
 
263
        self.checker_command = config["checker"]
 
264
    
 
265
    def enable(self):
254
266
        """Start this client's checker and timeout hooks"""
 
267
        self.last_enabled = datetime.datetime.utcnow()
255
268
        # Schedule a new checker to be started an 'interval' from now,
256
269
        # and every interval from then on.
257
 
        self.checker_initiator_tag = gobject.timeout_add\
258
 
                                     (self._interval_milliseconds,
259
 
                                      self.start_checker)
 
270
        self.checker_initiator_tag = (gobject.timeout_add
 
271
                                      (self.interval_milliseconds(),
 
272
                                       self.start_checker))
260
273
        # Also start a new checker *right now*.
261
274
        self.start_checker()
262
 
        # Schedule a stop() when 'timeout' has passed
263
 
        self.stop_initiator_tag = gobject.timeout_add\
264
 
                                  (self._timeout_milliseconds,
265
 
                                   self.stop)
266
 
    def stop(self):
267
 
        """Stop this client.
268
 
        The possibility that a client might be restarted is left open,
269
 
        but not currently used."""
270
 
        # If this client doesn't have a secret, it is already stopped.
271
 
        if hasattr(self, "secret") and self.secret:
272
 
            logger.info(u"Stopping client %s", self.name)
273
 
            self.secret = None
274
 
        else:
 
275
        # Schedule a disable() when 'timeout' has passed
 
276
        self.disable_initiator_tag = (gobject.timeout_add
 
277
                                   (self.timeout_milliseconds(),
 
278
                                    self.disable))
 
279
        self.enabled = True
 
280
        if self.use_dbus:
 
281
            # Emit D-Bus signals
 
282
            self.PropertyChanged(dbus.String(u"enabled"),
 
283
                                 dbus.Boolean(True, variant_level=1))
 
284
            self.PropertyChanged(dbus.String(u"last_enabled"),
 
285
                                 (_datetime_to_dbus(self.last_enabled,
 
286
                                                    variant_level=1)))
 
287
    
 
288
    def disable(self):
 
289
        """Disable this client."""
 
290
        if not getattr(self, "enabled", False):
275
291
            return False
276
 
        if getattr(self, "stop_initiator_tag", False):
277
 
            gobject.source_remove(self.stop_initiator_tag)
278
 
            self.stop_initiator_tag = None
 
292
        logger.info(u"Disabling client %s", self.name)
 
293
        if getattr(self, "disable_initiator_tag", False):
 
294
            gobject.source_remove(self.disable_initiator_tag)
 
295
            self.disable_initiator_tag = None
279
296
        if getattr(self, "checker_initiator_tag", False):
280
297
            gobject.source_remove(self.checker_initiator_tag)
281
298
            self.checker_initiator_tag = None
282
299
        self.stop_checker()
283
 
        if self.stop_hook:
284
 
            self.stop_hook(self)
 
300
        if self.disable_hook:
 
301
            self.disable_hook(self)
 
302
        self.enabled = False
 
303
        if self.use_dbus:
 
304
            # Emit D-Bus signal
 
305
            self.PropertyChanged(dbus.String(u"enabled"),
 
306
                                 dbus.Boolean(False, variant_level=1))
285
307
        # Do not run this again if called by a gobject.timeout_add
286
308
        return False
 
309
    
287
310
    def __del__(self):
288
 
        self.stop_hook = None
289
 
        self.stop()
290
 
    def checker_callback(self, pid, condition):
 
311
        self.disable_hook = None
 
312
        self.disable()
 
313
    
 
314
    def checker_callback(self, pid, condition, command):
291
315
        """The checker has completed, so take appropriate actions."""
292
 
        now = datetime.datetime.now()
293
316
        self.checker_callback_tag = None
294
317
        self.checker = None
295
 
        if os.WIFEXITED(condition) \
296
 
               and (os.WEXITSTATUS(condition) == 0):
 
318
        if self.use_dbus:
 
319
            # Emit D-Bus signal
 
320
            self.PropertyChanged(dbus.String(u"checker_running"),
 
321
                                 dbus.Boolean(False, variant_level=1))
 
322
        if (os.WIFEXITED(condition)
 
323
            and (os.WEXITSTATUS(condition) == 0)):
297
324
            logger.info(u"Checker for %(name)s succeeded",
298
325
                        vars(self))
299
 
            self.last_checked_ok = now
300
 
            gobject.source_remove(self.stop_initiator_tag)
301
 
            self.stop_initiator_tag = gobject.timeout_add\
302
 
                                      (self._timeout_milliseconds,
303
 
                                       self.stop)
 
326
            if self.use_dbus:
 
327
                # Emit D-Bus signal
 
328
                self.CheckerCompleted(dbus.Boolean(True),
 
329
                                      dbus.UInt16(condition),
 
330
                                      dbus.String(command))
 
331
            self.bump_timeout()
304
332
        elif not os.WIFEXITED(condition):
305
333
            logger.warning(u"Checker for %(name)s crashed?",
306
334
                           vars(self))
 
335
            if self.use_dbus:
 
336
                # Emit D-Bus signal
 
337
                self.CheckerCompleted(dbus.Boolean(False),
 
338
                                      dbus.UInt16(condition),
 
339
                                      dbus.String(command))
307
340
        else:
308
341
            logger.info(u"Checker for %(name)s failed",
309
342
                        vars(self))
 
343
            if self.use_dbus:
 
344
                # Emit D-Bus signal
 
345
                self.CheckerCompleted(dbus.Boolean(False),
 
346
                                      dbus.UInt16(condition),
 
347
                                      dbus.String(command))
 
348
    
 
349
    def bump_timeout(self):
 
350
        """Bump up the timeout for this client.
 
351
        This should only be called when the client has been seen,
 
352
        alive and well.
 
353
        """
 
354
        self.last_checked_ok = datetime.datetime.utcnow()
 
355
        gobject.source_remove(self.disable_initiator_tag)
 
356
        self.disable_initiator_tag = (gobject.timeout_add
 
357
                                      (self.timeout_milliseconds(),
 
358
                                       self.disable))
 
359
        if self.use_dbus:
 
360
            # Emit D-Bus signal
 
361
            self.PropertyChanged(
 
362
                dbus.String(u"last_checked_ok"),
 
363
                (_datetime_to_dbus(self.last_checked_ok,
 
364
                                   variant_level=1)))
 
365
    
310
366
    def start_checker(self):
311
367
        """Start a new checker subprocess if one is not running.
312
368
        If a checker already exists, leave it running and do
321
377
        # is as it should be.
322
378
        if self.checker is None:
323
379
            try:
324
 
                # In case check_command has exactly one % operator
325
 
                command = self.check_command % self.host
 
380
                # In case checker_command has exactly one % operator
 
381
                command = self.checker_command % self.host
326
382
            except TypeError:
327
383
                # Escape attributes for the shell
328
384
                escaped_attrs = dict((key, re.escape(str(val)))
329
385
                                     for key, val in
330
386
                                     vars(self).iteritems())
331
387
                try:
332
 
                    command = self.check_command % escaped_attrs
 
388
                    command = self.checker_command % escaped_attrs
333
389
                except TypeError, error:
334
390
                    logger.error(u'Could not format string "%s":'
335
 
                                 u' %s', self.check_command, error)
 
391
                                 u' %s', self.checker_command, error)
336
392
                    return True # Try again later
337
393
            try:
338
394
                logger.info(u"Starting checker %r for %s",
344
400
                self.checker = subprocess.Popen(command,
345
401
                                                close_fds=True,
346
402
                                                shell=True, cwd="/")
347
 
                self.checker_callback_tag = gobject.child_watch_add\
348
 
                                            (self.checker.pid,
349
 
                                             self.checker_callback)
 
403
                if self.use_dbus:
 
404
                    # Emit D-Bus signal
 
405
                    self.CheckerStarted(command)
 
406
                    self.PropertyChanged(
 
407
                        dbus.String("checker_running"),
 
408
                        dbus.Boolean(True, variant_level=1))
 
409
                self.checker_callback_tag = (gobject.child_watch_add
 
410
                                             (self.checker.pid,
 
411
                                              self.checker_callback,
 
412
                                              data=command))
350
413
            except OSError, error:
351
414
                logger.error(u"Failed to start subprocess: %s",
352
415
                             error)
353
416
        # Re-run this periodically if run by gobject.timeout_add
354
417
        return True
 
418
    
355
419
    def stop_checker(self):
356
420
        """Force the checker process, if any, to stop."""
357
421
        if self.checker_callback_tag:
369
433
            if error.errno != errno.ESRCH: # No such process
370
434
                raise
371
435
        self.checker = None
 
436
        if self.use_dbus:
 
437
            self.PropertyChanged(dbus.String(u"checker_running"),
 
438
                                 dbus.Boolean(False, variant_level=1))
 
439
    
372
440
    def still_valid(self):
373
441
        """Has the timeout not yet passed for this client?"""
374
 
        now = datetime.datetime.now()
 
442
        if not getattr(self, "enabled", False):
 
443
            return False
 
444
        now = datetime.datetime.utcnow()
375
445
        if self.last_checked_ok is None:
376
446
            return now < (self.created + self.timeout)
377
447
        else:
378
448
            return now < (self.last_checked_ok + self.timeout)
 
449
    
 
450
    ## D-Bus methods & signals
 
451
    _interface = u"org.mandos_system.Mandos.Client"
 
452
    
 
453
    # BumpTimeout - method
 
454
    BumpTimeout = dbus.service.method(_interface)(bump_timeout)
 
455
    BumpTimeout.__name__ = "BumpTimeout"
 
456
    
 
457
    # CheckerCompleted - signal
 
458
    @dbus.service.signal(_interface, signature="bqs")
 
459
    def CheckerCompleted(self, success, condition, command):
 
460
        "D-Bus signal"
 
461
        pass
 
462
    
 
463
    # CheckerStarted - signal
 
464
    @dbus.service.signal(_interface, signature="s")
 
465
    def CheckerStarted(self, command):
 
466
        "D-Bus signal"
 
467
        pass
 
468
    
 
469
    # GetAllProperties - method
 
470
    @dbus.service.method(_interface, out_signature="a{sv}")
 
471
    def GetAllProperties(self):
 
472
        "D-Bus method"
 
473
        return dbus.Dictionary({
 
474
                dbus.String("name"):
 
475
                    dbus.String(self.name, variant_level=1),
 
476
                dbus.String("fingerprint"):
 
477
                    dbus.String(self.fingerprint, variant_level=1),
 
478
                dbus.String("host"):
 
479
                    dbus.String(self.host, variant_level=1),
 
480
                dbus.String("created"):
 
481
                    _datetime_to_dbus(self.created, variant_level=1),
 
482
                dbus.String("last_enabled"):
 
483
                    (_datetime_to_dbus(self.last_enabled,
 
484
                                       variant_level=1)
 
485
                     if self.last_enabled is not None
 
486
                     else dbus.Boolean(False, variant_level=1)),
 
487
                dbus.String("enabled"):
 
488
                    dbus.Boolean(self.enabled, variant_level=1),
 
489
                dbus.String("last_checked_ok"):
 
490
                    (_datetime_to_dbus(self.last_checked_ok,
 
491
                                       variant_level=1)
 
492
                     if self.last_checked_ok is not None
 
493
                     else dbus.Boolean (False, variant_level=1)),
 
494
                dbus.String("timeout"):
 
495
                    dbus.UInt64(self.timeout_milliseconds(),
 
496
                                variant_level=1),
 
497
                dbus.String("interval"):
 
498
                    dbus.UInt64(self.interval_milliseconds(),
 
499
                                variant_level=1),
 
500
                dbus.String("checker"):
 
501
                    dbus.String(self.checker_command,
 
502
                                variant_level=1),
 
503
                dbus.String("checker_running"):
 
504
                    dbus.Boolean(self.checker is not None,
 
505
                                 variant_level=1),
 
506
                }, signature="sv")
 
507
    
 
508
    # IsStillValid - method
 
509
    IsStillValid = (dbus.service.method(_interface, out_signature="b")
 
510
                    (still_valid))
 
511
    IsStillValid.__name__ = "IsStillValid"
 
512
    
 
513
    # PropertyChanged - signal
 
514
    @dbus.service.signal(_interface, signature="sv")
 
515
    def PropertyChanged(self, property, value):
 
516
        "D-Bus signal"
 
517
        pass
 
518
    
 
519
    # SetChecker - method
 
520
    @dbus.service.method(_interface, in_signature="s")
 
521
    def SetChecker(self, checker):
 
522
        "D-Bus setter method"
 
523
        self.checker_command = checker
 
524
        # Emit D-Bus signal
 
525
        self.PropertyChanged(dbus.String(u"checker"),
 
526
                             dbus.String(self.checker_command,
 
527
                                         variant_level=1))
 
528
    
 
529
    # SetHost - method
 
530
    @dbus.service.method(_interface, in_signature="s")
 
531
    def SetHost(self, host):
 
532
        "D-Bus setter method"
 
533
        self.host = host
 
534
        # Emit D-Bus signal
 
535
        self.PropertyChanged(dbus.String(u"host"),
 
536
                             dbus.String(self.host, variant_level=1))
 
537
    
 
538
    # SetInterval - method
 
539
    @dbus.service.method(_interface, in_signature="t")
 
540
    def SetInterval(self, milliseconds):
 
541
        self.interval = datetime.timedelta(0, 0, 0, milliseconds)
 
542
        # Emit D-Bus signal
 
543
        self.PropertyChanged(dbus.String(u"interval"),
 
544
                             (dbus.UInt64(self.interval_milliseconds(),
 
545
                                          variant_level=1)))
 
546
    
 
547
    # SetSecret - method
 
548
    @dbus.service.method(_interface, in_signature="ay",
 
549
                         byte_arrays=True)
 
550
    def SetSecret(self, secret):
 
551
        "D-Bus setter method"
 
552
        self.secret = str(secret)
 
553
    
 
554
    # SetTimeout - method
 
555
    @dbus.service.method(_interface, in_signature="t")
 
556
    def SetTimeout(self, milliseconds):
 
557
        self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
 
558
        # Emit D-Bus signal
 
559
        self.PropertyChanged(dbus.String(u"timeout"),
 
560
                             (dbus.UInt64(self.timeout_milliseconds(),
 
561
                                          variant_level=1)))
 
562
    
 
563
    # Enable - method
 
564
    Enable = dbus.service.method(_interface)(enable)
 
565
    Enable.__name__ = "Enable"
 
566
    
 
567
    # StartChecker - method
 
568
    @dbus.service.method(_interface)
 
569
    def StartChecker(self):
 
570
        "D-Bus method"
 
571
        self.start_checker()
 
572
    
 
573
    # Disable - method
 
574
    @dbus.service.method(_interface)
 
575
    def Disable(self):
 
576
        "D-Bus method"
 
577
        self.disable()
 
578
    
 
579
    # StopChecker - method
 
580
    StopChecker = dbus.service.method(_interface)(stop_checker)
 
581
    StopChecker.__name__ = "StopChecker"
 
582
    
 
583
    del _interface
379
584
 
380
585
 
381
586
def peer_certificate(session):
382
587
    "Return the peer's OpenPGP certificate as a bytestring"
383
588
    # If not an OpenPGP certificate...
384
 
    if gnutls.library.functions.gnutls_certificate_type_get\
385
 
            (session._c_object) \
386
 
           != gnutls.library.constants.GNUTLS_CRT_OPENPGP:
 
589
    if (gnutls.library.functions
 
590
        .gnutls_certificate_type_get(session._c_object)
 
591
        != gnutls.library.constants.GNUTLS_CRT_OPENPGP):
387
592
        # ...do the normal thing
388
593
        return session.peer_certificate
389
594
    list_size = ctypes.c_uint()
390
 
    cert_list = gnutls.library.functions.gnutls_certificate_get_peers\
391
 
        (session._c_object, ctypes.byref(list_size))
 
595
    cert_list = (gnutls.library.functions
 
596
                 .gnutls_certificate_get_peers
 
597
                 (session._c_object, ctypes.byref(list_size)))
392
598
    if list_size.value == 0:
393
599
        return None
394
600
    cert = cert_list[0]
398
604
def fingerprint(openpgp):
399
605
    "Convert an OpenPGP bytestring to a hexdigit fingerprint string"
400
606
    # New GnuTLS "datum" with the OpenPGP public key
401
 
    datum = gnutls.library.types.gnutls_datum_t\
402
 
        (ctypes.cast(ctypes.c_char_p(openpgp),
403
 
                     ctypes.POINTER(ctypes.c_ubyte)),
404
 
         ctypes.c_uint(len(openpgp)))
 
607
    datum = (gnutls.library.types
 
608
             .gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
 
609
                                         ctypes.POINTER
 
610
                                         (ctypes.c_ubyte)),
 
611
                             ctypes.c_uint(len(openpgp))))
405
612
    # New empty GnuTLS certificate
406
613
    crt = gnutls.library.types.gnutls_openpgp_crt_t()
407
 
    gnutls.library.functions.gnutls_openpgp_crt_init\
408
 
        (ctypes.byref(crt))
 
614
    (gnutls.library.functions
 
615
     .gnutls_openpgp_crt_init(ctypes.byref(crt)))
409
616
    # Import the OpenPGP public key into the certificate
410
 
    gnutls.library.functions.gnutls_openpgp_crt_import\
411
 
                    (crt, ctypes.byref(datum),
412
 
                     gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
 
617
    (gnutls.library.functions
 
618
     .gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
 
619
                                gnutls.library.constants
 
620
                                .GNUTLS_OPENPGP_FMT_RAW))
413
621
    # Verify the self signature in the key
414
 
    crtverify = ctypes.c_uint();
415
 
    gnutls.library.functions.gnutls_openpgp_crt_verify_self\
416
 
        (crt, ctypes.c_uint(0), ctypes.byref(crtverify))
 
622
    crtverify = ctypes.c_uint()
 
623
    (gnutls.library.functions
 
624
     .gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
417
625
    if crtverify.value != 0:
418
626
        gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
419
627
        raise gnutls.errors.CertificateSecurityError("Verify failed")
420
628
    # New buffer for the fingerprint
421
 
    buffer = ctypes.create_string_buffer(20)
422
 
    buffer_length = ctypes.c_size_t()
 
629
    buf = ctypes.create_string_buffer(20)
 
630
    buf_len = ctypes.c_size_t()
423
631
    # Get the fingerprint from the certificate into the buffer
424
 
    gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint\
425
 
        (crt, ctypes.byref(buffer), ctypes.byref(buffer_length))
 
632
    (gnutls.library.functions
 
633
     .gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
 
634
                                         ctypes.byref(buf_len)))
426
635
    # Deinit the certificate
427
636
    gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
428
637
    # Convert the buffer to a Python bytestring
429
 
    fpr = ctypes.string_at(buffer, buffer_length.value)
 
638
    fpr = ctypes.string_at(buf, buf_len.value)
430
639
    # Convert the bytestring to hexadecimal notation
431
640
    hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
432
641
    return hex_fpr
433
642
 
434
643
 
435
 
class tcp_handler(SocketServer.BaseRequestHandler, object):
 
644
class TCP_handler(SocketServer.BaseRequestHandler, object):
436
645
    """A TCP request handler class.
437
646
    Instantiated by IPv6_TCPServer for each request to handle it.
438
647
    Note: This will run in its own forked process."""
439
648
    
440
649
    def handle(self):
441
650
        logger.info(u"TCP connection from: %s",
442
 
                     unicode(self.client_address))
443
 
        session = gnutls.connection.ClientSession\
444
 
                  (self.request, gnutls.connection.X509Credentials())
 
651
                    unicode(self.client_address))
 
652
        session = (gnutls.connection
 
653
                   .ClientSession(self.request,
 
654
                                  gnutls.connection
 
655
                                  .X509Credentials()))
445
656
        
446
657
        line = self.request.makefile().readline()
447
658
        logger.debug(u"Protocol version: %r", line)
460
671
        #priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
461
672
        #                "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
462
673
        #                "+DHE-DSS"))
463
 
        priority = "NORMAL"             # Fallback default, since this
464
 
                                        # MUST be set.
465
 
        if self.server.settings["priority"]:
466
 
            priority = self.server.settings["priority"]
467
 
        gnutls.library.functions.gnutls_priority_set_direct\
468
 
            (session._c_object, priority, None);
 
674
        # Use a fallback default, since this MUST be set.
 
675
        priority = self.server.settings.get("priority", "NORMAL")
 
676
        (gnutls.library.functions
 
677
         .gnutls_priority_set_direct(session._c_object,
 
678
                                     priority, None))
469
679
        
470
680
        try:
471
681
            session.handshake()
481
691
            session.bye()
482
692
            return
483
693
        logger.debug(u"Fingerprint: %s", fpr)
484
 
        client = None
485
694
        for c in self.server.clients:
486
695
            if c.fingerprint == fpr:
487
696
                client = c
488
697
                break
489
 
        if not client:
 
698
        else:
490
699
            logger.warning(u"Client not found for fingerprint: %s",
491
700
                           fpr)
492
701
            session.bye()
499
708
                           vars(client))
500
709
            session.bye()
501
710
            return
 
711
        ## This won't work here, since we're in a fork.
 
712
        # client.bump_timeout()
502
713
        sent_size = 0
503
714
        while sent_size < len(client.secret):
504
715
            sent = session.send(client.secret[sent_size:])
509
720
        session.bye()
510
721
 
511
722
 
512
 
class IPv6_TCPServer(SocketServer.ForkingTCPServer, object):
 
723
class IPv6_TCPServer(SocketServer.ForkingMixIn,
 
724
                     SocketServer.TCPServer, object):
513
725
    """IPv6 TCP server.  Accepts 'None' as address and/or port.
514
726
    Attributes:
515
727
        settings:       Server settings
516
728
        clients:        Set() of Client objects
 
729
        enabled:        Boolean; whether this server is activated yet
517
730
    """
518
731
    address_family = socket.AF_INET6
519
732
    def __init__(self, *args, **kwargs):
523
736
        if "clients" in kwargs:
524
737
            self.clients = kwargs["clients"]
525
738
            del kwargs["clients"]
526
 
        return super(type(self), self).__init__(*args, **kwargs)
 
739
        self.enabled = False
 
740
        super(IPv6_TCPServer, self).__init__(*args, **kwargs)
527
741
    def server_bind(self):
528
742
        """This overrides the normal server_bind() function
529
743
        to bind to an interface if one was specified, and also NOT to
558
772
#                                            if_nametoindex
559
773
#                                            (self.settings
560
774
#                                             ["interface"]))
561
 
            return super(type(self), self).server_bind()
 
775
            return super(IPv6_TCPServer, self).server_bind()
 
776
    def server_activate(self):
 
777
        if self.enabled:
 
778
            return super(IPv6_TCPServer, self).server_activate()
 
779
    def enable(self):
 
780
        self.enabled = True
562
781
 
563
782
 
564
783
def string_to_delta(interval):
580
799
    timevalue = datetime.timedelta(0)
581
800
    for s in interval.split():
582
801
        try:
583
 
            suffix=unicode(s[-1])
584
 
            value=int(s[:-1])
 
802
            suffix = unicode(s[-1])
 
803
            value = int(s[:-1])
585
804
            if suffix == u"d":
586
805
                delta = datetime.timedelta(value)
587
806
            elif suffix == u"s":
603
822
def server_state_changed(state):
604
823
    """Derived from the Avahi example code"""
605
824
    if state == avahi.SERVER_COLLISION:
606
 
        logger.error(u"Server name collision")
 
825
        logger.error(u"Zeroconf server name collision")
607
826
        service.remove()
608
827
    elif state == avahi.SERVER_RUNNING:
609
828
        service.add()
611
830
 
612
831
def entry_group_state_changed(state, error):
613
832
    """Derived from the Avahi example code"""
614
 
    logger.debug(u"state change: %i", state)
 
833
    logger.debug(u"Avahi state change: %i", state)
615
834
    
616
835
    if state == avahi.ENTRY_GROUP_ESTABLISHED:
617
 
        logger.debug(u"Service established.")
 
836
        logger.debug(u"Zeroconf service established.")
618
837
    elif state == avahi.ENTRY_GROUP_COLLISION:
619
 
        logger.warning(u"Service name collision.")
 
838
        logger.warning(u"Zeroconf service name collision.")
620
839
        service.rename()
621
840
    elif state == avahi.ENTRY_GROUP_FAILURE:
622
 
        logger.critical(u"Error in group state changed %s",
 
841
        logger.critical(u"Avahi: Error in group state changed %s",
623
842
                        unicode(error))
624
 
        raise AvahiGroupError("State changed: %s", str(error))
 
843
        raise AvahiGroupError(u"State changed: %s" % unicode(error))
625
844
 
626
845
def if_nametoindex(interface):
627
846
    """Call the C function if_nametoindex(), or equivalent"""
628
847
    global if_nametoindex
629
848
    try:
630
 
        if "ctypes.util" not in sys.modules:
631
 
            import ctypes.util
632
 
        if_nametoindex = ctypes.cdll.LoadLibrary\
633
 
            (ctypes.util.find_library("c")).if_nametoindex
 
849
        if_nametoindex = (ctypes.cdll.LoadLibrary
 
850
                          (ctypes.util.find_library("c"))
 
851
                          .if_nametoindex)
634
852
    except (OSError, AttributeError):
635
853
        if "struct" not in sys.modules:
636
854
            import struct
639
857
        def if_nametoindex(interface):
640
858
            "Get an interface index the hard way, i.e. using fcntl()"
641
859
            SIOCGIFINDEX = 0x8933  # From /usr/include/linux/sockios.h
642
 
            s = socket.socket()
643
 
            ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
644
 
                                struct.pack("16s16x", interface))
645
 
            s.close()
 
860
            with closing(socket.socket()) as s:
 
861
                ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
 
862
                                    struct.pack("16s16x", interface))
646
863
            interface_index = struct.unpack("I", ifreq[16:20])[0]
647
864
            return interface_index
648
865
    return if_nametoindex(interface)
672
889
 
673
890
 
674
891
def main():
675
 
    global main_loop_started
676
 
    main_loop_started = False
677
 
    
678
 
    parser = OptionParser(version = "%%prog %s" % version)
 
892
    parser = optparse.OptionParser(version = "%%prog %s" % version)
679
893
    parser.add_option("-i", "--interface", type="string",
680
894
                      metavar="IF", help="Bind to interface IF")
681
895
    parser.add_option("-a", "--address", type="string",
682
896
                      help="Address to listen for requests on")
683
897
    parser.add_option("-p", "--port", type="int",
684
898
                      help="Port number to receive requests on")
685
 
    parser.add_option("--check", action="store_true", default=False,
 
899
    parser.add_option("--check", action="store_true",
686
900
                      help="Run self-test")
687
901
    parser.add_option("--debug", action="store_true",
688
902
                      help="Debug mode; run in foreground and log to"
695
909
                      default="/etc/mandos", metavar="DIR",
696
910
                      help="Directory to search for configuration"
697
911
                      " files")
698
 
    (options, args) = parser.parse_args()
 
912
    parser.add_option("--no-dbus", action="store_false",
 
913
                      dest="use_dbus",
 
914
                      help="Do not provide D-Bus system bus"
 
915
                      " interface")
 
916
    options = parser.parse_args()[0]
699
917
    
700
918
    if options.check:
701
919
        import doctest
710
928
                        "priority":
711
929
                        "SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
712
930
                        "servicename": "Mandos",
 
931
                        "use_dbus": "True",
713
932
                        }
714
933
    
715
934
    # Parse config file for server-global settings
718
937
    server_config.read(os.path.join(options.configdir, "mandos.conf"))
719
938
    # Convert the SafeConfigParser object to a dict
720
939
    server_settings = server_config.defaults()
721
 
    # Use getboolean on the boolean config option
722
 
    server_settings["debug"] = server_config.getboolean\
723
 
                               ("DEFAULT", "debug")
 
940
    # Use getboolean on the boolean config options
 
941
    server_settings["debug"] = (server_config.getboolean
 
942
                                ("DEFAULT", "debug"))
 
943
    server_settings["use_dbus"] = (server_config.getboolean
 
944
                                   ("DEFAULT", "use_dbus"))
724
945
    del server_config
725
946
    
726
947
    # Override the settings from the config file with command line
727
948
    # options, if set.
728
949
    for option in ("interface", "address", "port", "debug",
729
 
                   "priority", "servicename", "configdir"):
 
950
                   "priority", "servicename", "configdir",
 
951
                   "use_dbus"):
730
952
        value = getattr(options, option)
731
953
        if value is not None:
732
954
            server_settings[option] = value
733
955
    del options
734
956
    # Now we have our good server settings in "server_settings"
735
957
    
 
958
    # For convenience
736
959
    debug = server_settings["debug"]
 
960
    use_dbus = server_settings["use_dbus"]
737
961
    
738
962
    if not debug:
739
963
        syslogger.setLevel(logging.WARNING)
740
964
        console.setLevel(logging.WARNING)
741
965
    
742
966
    if server_settings["servicename"] != "Mandos":
743
 
        syslogger.setFormatter(logging.Formatter\
 
967
        syslogger.setFormatter(logging.Formatter
744
968
                               ('Mandos (%s): %%(levelname)s:'
745
969
                                ' %%(message)s'
746
970
                                % server_settings["servicename"]))
748
972
    # Parse config file with clients
749
973
    client_defaults = { "timeout": "1h",
750
974
                        "interval": "5m",
751
 
                        "checker": "fping -q -- %(host)s",
 
975
                        "checker": "fping -q -- %%(host)s",
752
976
                        "host": "",
753
977
                        }
754
978
    client_config = ConfigParser.SafeConfigParser(client_defaults)
755
979
    client_config.read(os.path.join(server_settings["configdir"],
756
980
                                    "clients.conf"))
757
981
    
 
982
    clients = Set()
 
983
    tcp_server = IPv6_TCPServer((server_settings["address"],
 
984
                                 server_settings["port"]),
 
985
                                TCP_handler,
 
986
                                settings=server_settings,
 
987
                                clients=clients)
 
988
    pidfilename = "/var/run/mandos.pid"
 
989
    try:
 
990
        pidfile = open(pidfilename, "w")
 
991
    except IOError, error:
 
992
        logger.error("Could not open file %r", pidfilename)
 
993
    
 
994
    try:
 
995
        uid = pwd.getpwnam("_mandos").pw_uid
 
996
        gid = pwd.getpwnam("_mandos").pw_gid
 
997
    except KeyError:
 
998
        try:
 
999
            uid = pwd.getpwnam("mandos").pw_uid
 
1000
            gid = pwd.getpwnam("mandos").pw_gid
 
1001
        except KeyError:
 
1002
            try:
 
1003
                uid = pwd.getpwnam("nobody").pw_uid
 
1004
                gid = pwd.getpwnam("nogroup").pw_gid
 
1005
            except KeyError:
 
1006
                uid = 65534
 
1007
                gid = 65534
 
1008
    try:
 
1009
        os.setuid(uid)
 
1010
        os.setgid(gid)
 
1011
    except OSError, error:
 
1012
        if error[0] != errno.EPERM:
 
1013
            raise error
 
1014
    
758
1015
    global service
759
1016
    service = AvahiService(name = server_settings["servicename"],
760
 
                           type = "_mandos._tcp", );
 
1017
                           servicetype = "_mandos._tcp", )
761
1018
    if server_settings["interface"]:
762
 
        service.interface = if_nametoindex(server_settings["interface"])
 
1019
        service.interface = (if_nametoindex
 
1020
                             (server_settings["interface"]))
763
1021
    
764
1022
    global main_loop
765
1023
    global bus
768
1026
    DBusGMainLoop(set_as_default=True )
769
1027
    main_loop = gobject.MainLoop()
770
1028
    bus = dbus.SystemBus()
771
 
    server = dbus.Interface(
772
 
            bus.get_object( avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER ),
773
 
            avahi.DBUS_INTERFACE_SERVER )
 
1029
    server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
 
1030
                                           avahi.DBUS_PATH_SERVER),
 
1031
                            avahi.DBUS_INTERFACE_SERVER)
774
1032
    # End of Avahi example code
775
 
    
776
 
    clients = Set()
777
 
    def remove_from_clients(client):
778
 
        clients.remove(client)
779
 
        if not clients:
780
 
            logger.critical(u"No clients left, exiting")
781
 
            sys.exit()
 
1033
    if use_dbus:
 
1034
        bus_name = dbus.service.BusName(u"org.mandos-system.Mandos",
 
1035
                                        bus)
782
1036
    
783
1037
    clients.update(Set(Client(name = section,
784
 
                              stop_hook = remove_from_clients,
785
1038
                              config
786
 
                              = dict(client_config.items(section)))
 
1039
                              = dict(client_config.items(section)),
 
1040
                              use_dbus = use_dbus)
787
1041
                       for section in client_config.sections()))
788
1042
    if not clients:
789
 
        logger.critical(u"No clients defined")
790
 
        sys.exit(1)
 
1043
        logger.warning(u"No clients defined")
791
1044
    
792
1045
    if debug:
793
1046
        # Redirect stdin so all checkers get /dev/null
801
1054
        # Close all input and output, do double fork, etc.
802
1055
        daemon()
803
1056
    
804
 
    pidfilename = "/var/run/mandos/mandos.pid"
805
 
    pid = os.getpid()
806
1057
    try:
807
 
        pidfile = open(pidfilename, "w")
 
1058
        pid = os.getpid()
808
1059
        pidfile.write(str(pid) + "\n")
809
1060
        pidfile.close()
810
1061
        del pidfile
811
 
    except IOError, err:
812
 
        logger.error(u"Could not write %s file with PID %d",
813
 
                     pidfilename, os.getpid())
 
1062
    except IOError:
 
1063
        logger.error(u"Could not write to file %r with PID %d",
 
1064
                     pidfilename, pid)
 
1065
    except NameError:
 
1066
        # "pidfile" was never created
 
1067
        pass
 
1068
    del pidfilename
814
1069
    
815
1070
    def cleanup():
816
1071
        "Cleanup function; run on exit"
823
1078
        
824
1079
        while clients:
825
1080
            client = clients.pop()
826
 
            client.stop_hook = None
827
 
            client.stop()
 
1081
            client.disable_hook = None
 
1082
            client.disable()
828
1083
    
829
1084
    atexit.register(cleanup)
830
1085
    
833
1088
    signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
834
1089
    signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
835
1090
    
 
1091
    if use_dbus:
 
1092
        class MandosServer(dbus.service.Object):
 
1093
            """A D-Bus proxy object"""
 
1094
            def __init__(self):
 
1095
                dbus.service.Object.__init__(self, bus,
 
1096
                                             "/Mandos")
 
1097
            _interface = u"org.mandos_system.Mandos"
 
1098
 
 
1099
            @dbus.service.signal(_interface, signature="oa{sv}")
 
1100
            def ClientAdded(self, objpath, properties):
 
1101
                "D-Bus signal"
 
1102
                pass
 
1103
 
 
1104
            @dbus.service.signal(_interface, signature="o")
 
1105
            def ClientRemoved(self, objpath):
 
1106
                "D-Bus signal"
 
1107
                pass
 
1108
 
 
1109
            @dbus.service.method(_interface, out_signature="ao")
 
1110
            def GetAllClients(self):
 
1111
                return dbus.Array(c.dbus_object_path for c in clients)
 
1112
 
 
1113
            @dbus.service.method(_interface, out_signature="a{oa{sv}}")
 
1114
            def GetAllClientsWithProperties(self):
 
1115
                return dbus.Dictionary(
 
1116
                    ((c.dbus_object_path, c.GetAllProperties())
 
1117
                     for c in clients),
 
1118
                    signature="oa{sv}")
 
1119
 
 
1120
            @dbus.service.method(_interface, in_signature="o")
 
1121
            def RemoveClient(self, object_path):
 
1122
                for c in clients:
 
1123
                    if c.dbus_object_path == object_path:
 
1124
                        clients.remove(c)
 
1125
                        # Don't signal anything except ClientRemoved
 
1126
                        c.use_dbus = False
 
1127
                        c.disable()
 
1128
                        # Emit D-Bus signal
 
1129
                        self.ClientRemoved(object_path)
 
1130
                        return
 
1131
                raise KeyError
 
1132
            @dbus.service.method(_interface)
 
1133
            def Quit(self):
 
1134
                main_loop.quit()
 
1135
 
 
1136
            del _interface
 
1137
    
 
1138
        mandos_server = MandosServer()
 
1139
    
836
1140
    for client in clients:
837
 
        client.start()
838
 
    
839
 
    tcp_server = IPv6_TCPServer((server_settings["address"],
840
 
                                 server_settings["port"]),
841
 
                                tcp_handler,
842
 
                                settings=server_settings,
843
 
                                clients=clients)
 
1141
        if use_dbus:
 
1142
            # Emit D-Bus signal
 
1143
            mandos_server.ClientAdded(client.dbus_object_path,
 
1144
                                      client.GetAllProperties())
 
1145
        client.enable()
 
1146
    
 
1147
    tcp_server.enable()
 
1148
    tcp_server.server_activate()
 
1149
    
844
1150
    # Find out what port we got
845
1151
    service.port = tcp_server.socket.getsockname()[1]
846
1152
    logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
860
1166
        
861
1167
        gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
862
1168
                             lambda *args, **kwargs:
863
 
                             tcp_server.handle_request\
864
 
                             (*args[2:], **kwargs) or True)
 
1169
                             (tcp_server.handle_request
 
1170
                              (*args[2:], **kwargs) or True))
865
1171
        
866
1172
        logger.debug(u"Starting main loop")
867
 
        main_loop_started = True
868
1173
        main_loop.run()
869
1174
    except AvahiError, error:
870
 
        logger.critical(u"AvahiError: %s" + unicode(error))
 
1175
        logger.critical(u"AvahiError: %s", error)
871
1176
        sys.exit(1)
872
1177
    except KeyboardInterrupt:
873
1178
        if debug: