/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2009-02-07 04:50:39 UTC
  • Revision ID: teddy@fukt.bsnet.se-20090207045039-xkr6b80vtqwqrq8l
* Makefile (install-client-nokey): Move "initramfs-tools-script" from
                                   "/scripts/local-top/mandos" to
                                   "/scripts/init-premount/mandos".
  (uninstall-client): - '' -
* debian/mandos-client.dirs: - '' -
* initramfs-tools-script (PREREQ): Added "udev".

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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
30
31
# Contact the authors at <mandos@fukt.bsnet.se>.
31
32
# 
32
33
 
33
 
from __future__ import division
 
34
from __future__ import division, with_statement, absolute_import
34
35
 
35
36
import SocketServer
36
37
import socket
37
 
import select
38
 
from optparse import OptionParser
 
38
import optparse
39
39
import datetime
40
40
import errno
41
41
import gnutls.crypto
55
55
import stat
56
56
import logging
57
57
import logging.handlers
 
58
import pwd
 
59
from contextlib import closing
58
60
 
59
61
import dbus
 
62
import dbus.service
60
63
import gobject
61
64
import avahi
62
65
from dbus.mainloop.glib import DBusGMainLoop
63
66
import ctypes
 
67
import ctypes.util
64
68
 
65
 
version = "1.0"
 
69
version = "1.0.5"
66
70
 
67
71
logger = logging.Logger('mandos')
68
 
syslogger = logging.handlers.SysLogHandler\
69
 
            (facility = logging.handlers.SysLogHandler.LOG_DAEMON,
70
 
             address = "/dev/log")
71
 
syslogger.setFormatter(logging.Formatter\
72
 
                        ('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 [%(process)d]: %(levelname)s:'
 
77
                        ' %(message)s'))
73
78
logger.addHandler(syslogger)
74
79
 
75
80
console = logging.StreamHandler()
76
 
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
77
 
                                       ' %(message)s'))
 
81
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
 
82
                                       ' %(levelname)s: %(message)s'))
78
83
logger.addHandler(console)
79
84
 
80
85
class AvahiError(Exception):
81
 
    def __init__(self, value):
 
86
    def __init__(self, value, *args, **kwargs):
82
87
        self.value = value
83
 
    def __str__(self):
84
 
        return repr(self.value)
 
88
        super(AvahiError, self).__init__(value, *args, **kwargs)
 
89
    def __unicode__(self):
 
90
        return unicode(repr(self.value))
85
91
 
86
92
class AvahiServiceError(AvahiError):
87
93
    pass
107
113
                  a sensible number of times
108
114
    """
109
115
    def __init__(self, interface = avahi.IF_UNSPEC, name = None,
110
 
                 type = None, port = None, TXT = None, domain = "",
111
 
                 host = "", max_renames = 32768):
 
116
                 servicetype = None, port = None, TXT = None,
 
117
                 domain = "", host = "", max_renames = 32768):
112
118
        self.interface = interface
113
119
        self.name = name
114
 
        self.type = type
 
120
        self.type = servicetype
115
121
        self.port = port
116
 
        if TXT is None:
117
 
            self.TXT = []
118
 
        else:
119
 
            self.TXT = TXT
 
122
        self.TXT = TXT if TXT is not None else []
120
123
        self.domain = domain
121
124
        self.host = host
122
125
        self.rename_count = 0
126
129
        if self.rename_count >= self.max_renames:
127
130
            logger.critical(u"No suitable Zeroconf service name found"
128
131
                            u" after %i retries, exiting.",
129
 
                            rename_count)
130
 
            raise AvahiServiceError("Too many renames")
 
132
                            self.rename_count)
 
133
            raise AvahiServiceError(u"Too many renames")
131
134
        self.name = server.GetAlternativeServiceName(self.name)
132
135
        logger.info(u"Changing Zeroconf service name to %r ...",
133
136
                    str(self.name))
134
 
        syslogger.setFormatter(logging.Formatter\
 
137
        syslogger.setFormatter(logging.Formatter
135
138
                               ('Mandos (%s): %%(levelname)s:'
136
 
                               ' %%(message)s' % self.name))
 
139
                                ' %%(message)s' % self.name))
137
140
        self.remove()
138
141
        self.add()
139
142
        self.rename_count += 1
145
148
        """Derived from the Avahi example code"""
146
149
        global group
147
150
        if group is None:
148
 
            group = dbus.Interface\
149
 
                    (bus.get_object(avahi.DBUS_NAME,
 
151
            group = dbus.Interface(bus.get_object
 
152
                                   (avahi.DBUS_NAME,
150
153
                                    server.EntryGroupNew()),
151
 
                     avahi.DBUS_INTERFACE_ENTRY_GROUP)
 
154
                                   avahi.DBUS_INTERFACE_ENTRY_GROUP)
152
155
            group.connect_to_signal('StateChanged',
153
156
                                    entry_group_state_changed)
154
157
        logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
168
171
# End of Avahi example code
169
172
 
170
173
 
171
 
class Client(object):
 
174
def _datetime_to_dbus(dt, variant_level=0):
 
175
    """Convert a UTC datetime.datetime() to a D-Bus type."""
 
176
    return dbus.String(dt.isoformat(), variant_level=variant_level)
 
177
 
 
178
 
 
179
class Client(dbus.service.Object):
172
180
    """A representation of a client host served by this server.
173
181
    Attributes:
174
 
    name:      string; from the config file, used in log messages
 
182
    name:       string; from the config file, used in log messages and
 
183
                        D-Bus identifiers
175
184
    fingerprint: string (40 or 32 hexadecimal digits); used to
176
185
                 uniquely identify the client
177
 
    secret:    bytestring; sent verbatim (over TLS) to client
178
 
    host:      string; available for use by the checker command
179
 
    created:   datetime.datetime(); object creation, not client host
180
 
    last_checked_ok: datetime.datetime() or None if not yet checked OK
181
 
    timeout:   datetime.timedelta(); How long from last_checked_ok
182
 
                                     until this client is invalid
183
 
    interval:  datetime.timedelta(); How often to start a new checker
184
 
    stop_hook: If set, called by stop() as stop_hook(self)
185
 
    checker:   subprocess.Popen(); a running checker process used
186
 
                                   to see if the client lives.
187
 
                                   'None' if no process is running.
 
186
    secret:     bytestring; sent verbatim (over TLS) to client
 
187
    host:       string; available for use by the checker command
 
188
    created:    datetime.datetime(); (UTC) object creation
 
189
    last_enabled: datetime.datetime(); (UTC)
 
190
    enabled:    bool()
 
191
    last_checked_ok: datetime.datetime(); (UTC) or None
 
192
    timeout:    datetime.timedelta(); How long from last_checked_ok
 
193
                                      until this client is invalid
 
194
    interval:   datetime.timedelta(); How often to start a new checker
 
195
    disable_hook:  If set, called by disable() as disable_hook(self)
 
196
    checker:    subprocess.Popen(); a running checker process used
 
197
                                    to see if the client lives.
 
198
                                    'None' if no process is running.
188
199
    checker_initiator_tag: a gobject event source tag, or None
189
 
    stop_initiator_tag:    - '' -
 
200
    disable_initiator_tag:    - '' -
190
201
    checker_callback_tag:  - '' -
191
202
    checker_command: string; External command which is run to check if
192
203
                     client lives.  %() expansions are done at
193
204
                     runtime with vars(self) as dict, so that for
194
205
                     instance %(name)s can be used in the command.
195
 
    Private attibutes:
196
 
    _timeout: Real variable for 'timeout'
197
 
    _interval: Real variable for 'interval'
198
 
    _timeout_milliseconds: Used when calling gobject.timeout_add()
199
 
    _interval_milliseconds: - '' -
 
206
    use_dbus: bool(); Whether to provide D-Bus interface and signals
 
207
    dbus_object_path: dbus.ObjectPath ; only set if self.use_dbus
200
208
    """
201
 
    def _set_timeout(self, timeout):
202
 
        "Setter function for 'timeout' attribute"
203
 
        self._timeout = timeout
204
 
        self._timeout_milliseconds = ((self.timeout.days
205
 
                                       * 24 * 60 * 60 * 1000)
206
 
                                      + (self.timeout.seconds * 1000)
207
 
                                      + (self.timeout.microseconds
208
 
                                         // 1000))
209
 
    timeout = property(lambda self: self._timeout,
210
 
                       _set_timeout)
211
 
    del _set_timeout
212
 
    def _set_interval(self, interval):
213
 
        "Setter function for 'interval' attribute"
214
 
        self._interval = interval
215
 
        self._interval_milliseconds = ((self.interval.days
216
 
                                        * 24 * 60 * 60 * 1000)
217
 
                                       + (self.interval.seconds
218
 
                                          * 1000)
219
 
                                       + (self.interval.microseconds
220
 
                                          // 1000))
221
 
    interval = property(lambda self: self._interval,
222
 
                        _set_interval)
223
 
    del _set_interval
224
 
    def __init__(self, name = None, stop_hook=None, config={}):
 
209
    def timeout_milliseconds(self):
 
210
        "Return the 'timeout' attribute in milliseconds"
 
211
        return ((self.timeout.days * 24 * 60 * 60 * 1000)
 
212
                + (self.timeout.seconds * 1000)
 
213
                + (self.timeout.microseconds // 1000))
 
214
    
 
215
    def interval_milliseconds(self):
 
216
        "Return the 'interval' attribute in milliseconds"
 
217
        return ((self.interval.days * 24 * 60 * 60 * 1000)
 
218
                + (self.interval.seconds * 1000)
 
219
                + (self.interval.microseconds // 1000))
 
220
    
 
221
    def __init__(self, name = None, disable_hook=None, config=None,
 
222
                 use_dbus=True):
225
223
        """Note: the 'checker' key in 'config' sets the
226
224
        'checker_command' attribute and *not* the 'checker'
227
225
        attribute."""
228
226
        self.name = name
 
227
        if config is None:
 
228
            config = {}
229
229
        logger.debug(u"Creating client %r", self.name)
 
230
        self.use_dbus = False   # During __init__
230
231
        # Uppercase and remove spaces from fingerprint for later
231
232
        # comparison purposes with return value from the fingerprint()
232
233
        # function
233
 
        self.fingerprint = config["fingerprint"].upper()\
234
 
                           .replace(u" ", u"")
 
234
        self.fingerprint = (config["fingerprint"].upper()
 
235
                            .replace(u" ", u""))
235
236
        logger.debug(u"  Fingerprint: %s", self.fingerprint)
236
237
        if "secret" in config:
237
238
            self.secret = config["secret"].decode(u"base64")
238
239
        elif "secfile" in config:
239
 
            sf = open(config["secfile"])
240
 
            self.secret = sf.read()
241
 
            sf.close()
 
240
            with closing(open(os.path.expanduser
 
241
                              (os.path.expandvars
 
242
                               (config["secfile"])))) as secfile:
 
243
                self.secret = secfile.read()
242
244
        else:
243
245
            raise TypeError(u"No secret or secfile for client %s"
244
246
                            % self.name)
245
247
        self.host = config.get("host", "")
246
 
        self.created = datetime.datetime.now()
 
248
        self.created = datetime.datetime.utcnow()
 
249
        self.enabled = False
 
250
        self.last_enabled = None
247
251
        self.last_checked_ok = None
248
252
        self.timeout = string_to_delta(config["timeout"])
249
253
        self.interval = string_to_delta(config["interval"])
250
 
        self.stop_hook = stop_hook
 
254
        self.disable_hook = disable_hook
251
255
        self.checker = None
252
256
        self.checker_initiator_tag = None
253
 
        self.stop_initiator_tag = None
 
257
        self.disable_initiator_tag = None
254
258
        self.checker_callback_tag = None
255
 
        self.check_command = config["checker"]
256
 
    def start(self):
 
259
        self.checker_command = config["checker"]
 
260
        self.last_connect = None
 
261
        # Only now, when this client is initialized, can it show up on
 
262
        # the D-Bus
 
263
        self.use_dbus = use_dbus
 
264
        if self.use_dbus:
 
265
            self.dbus_object_path = (dbus.ObjectPath
 
266
                                     ("/clients/"
 
267
                                      + self.name.replace(".", "_")))
 
268
            dbus.service.Object.__init__(self, bus,
 
269
                                         self.dbus_object_path)
 
270
    
 
271
    def enable(self):
257
272
        """Start this client's checker and timeout hooks"""
 
273
        self.last_enabled = datetime.datetime.utcnow()
258
274
        # Schedule a new checker to be started an 'interval' from now,
259
275
        # and every interval from then on.
260
 
        self.checker_initiator_tag = gobject.timeout_add\
261
 
                                     (self._interval_milliseconds,
262
 
                                      self.start_checker)
 
276
        self.checker_initiator_tag = (gobject.timeout_add
 
277
                                      (self.interval_milliseconds(),
 
278
                                       self.start_checker))
263
279
        # Also start a new checker *right now*.
264
280
        self.start_checker()
265
 
        # Schedule a stop() when 'timeout' has passed
266
 
        self.stop_initiator_tag = gobject.timeout_add\
267
 
                                  (self._timeout_milliseconds,
268
 
                                   self.stop)
269
 
    def stop(self):
270
 
        """Stop this client.
271
 
        The possibility that a client might be restarted is left open,
272
 
        but not currently used."""
273
 
        # If this client doesn't have a secret, it is already stopped.
274
 
        if hasattr(self, "secret") and self.secret:
275
 
            logger.info(u"Stopping client %s", self.name)
276
 
            self.secret = None
277
 
        else:
 
281
        # Schedule a disable() when 'timeout' has passed
 
282
        self.disable_initiator_tag = (gobject.timeout_add
 
283
                                   (self.timeout_milliseconds(),
 
284
                                    self.disable))
 
285
        self.enabled = True
 
286
        if self.use_dbus:
 
287
            # Emit D-Bus signals
 
288
            self.PropertyChanged(dbus.String(u"enabled"),
 
289
                                 dbus.Boolean(True, variant_level=1))
 
290
            self.PropertyChanged(dbus.String(u"last_enabled"),
 
291
                                 (_datetime_to_dbus(self.last_enabled,
 
292
                                                    variant_level=1)))
 
293
    
 
294
    def disable(self):
 
295
        """Disable this client."""
 
296
        if not getattr(self, "enabled", False):
278
297
            return False
279
 
        if getattr(self, "stop_initiator_tag", False):
280
 
            gobject.source_remove(self.stop_initiator_tag)
281
 
            self.stop_initiator_tag = None
 
298
        logger.info(u"Disabling client %s", self.name)
 
299
        if getattr(self, "disable_initiator_tag", False):
 
300
            gobject.source_remove(self.disable_initiator_tag)
 
301
            self.disable_initiator_tag = None
282
302
        if getattr(self, "checker_initiator_tag", False):
283
303
            gobject.source_remove(self.checker_initiator_tag)
284
304
            self.checker_initiator_tag = None
285
305
        self.stop_checker()
286
 
        if self.stop_hook:
287
 
            self.stop_hook(self)
 
306
        if self.disable_hook:
 
307
            self.disable_hook(self)
 
308
        self.enabled = False
 
309
        if self.use_dbus:
 
310
            # Emit D-Bus signal
 
311
            self.PropertyChanged(dbus.String(u"enabled"),
 
312
                                 dbus.Boolean(False, variant_level=1))
288
313
        # Do not run this again if called by a gobject.timeout_add
289
314
        return False
 
315
    
290
316
    def __del__(self):
291
 
        self.stop_hook = None
292
 
        self.stop()
293
 
    def checker_callback(self, pid, condition):
 
317
        self.disable_hook = None
 
318
        self.disable()
 
319
    
 
320
    def checker_callback(self, pid, condition, command):
294
321
        """The checker has completed, so take appropriate actions."""
295
 
        now = datetime.datetime.now()
296
322
        self.checker_callback_tag = None
297
323
        self.checker = None
298
 
        if os.WIFEXITED(condition) \
299
 
               and (os.WEXITSTATUS(condition) == 0):
300
 
            logger.info(u"Checker for %(name)s succeeded",
301
 
                        vars(self))
302
 
            self.last_checked_ok = now
303
 
            gobject.source_remove(self.stop_initiator_tag)
304
 
            self.stop_initiator_tag = gobject.timeout_add\
305
 
                                      (self._timeout_milliseconds,
306
 
                                       self.stop)
307
 
        elif not os.WIFEXITED(condition):
 
324
        if self.use_dbus:
 
325
            # Emit D-Bus signal
 
326
            self.PropertyChanged(dbus.String(u"checker_running"),
 
327
                                 dbus.Boolean(False, variant_level=1))
 
328
        if os.WIFEXITED(condition):
 
329
            exitstatus = os.WEXITSTATUS(condition)
 
330
            if exitstatus == 0:
 
331
                logger.info(u"Checker for %(name)s succeeded",
 
332
                            vars(self))
 
333
                self.checked_ok()
 
334
            else:
 
335
                logger.info(u"Checker for %(name)s failed",
 
336
                            vars(self))
 
337
            if self.use_dbus:
 
338
                # Emit D-Bus signal
 
339
                self.CheckerCompleted(dbus.Int16(exitstatus),
 
340
                                      dbus.Int64(condition),
 
341
                                      dbus.String(command))
 
342
        else:
308
343
            logger.warning(u"Checker for %(name)s crashed?",
309
344
                           vars(self))
310
 
        else:
311
 
            logger.info(u"Checker for %(name)s failed",
312
 
                        vars(self))
 
345
            if self.use_dbus:
 
346
                # Emit D-Bus signal
 
347
                self.CheckerCompleted(dbus.Int16(-1),
 
348
                                      dbus.Int64(condition),
 
349
                                      dbus.String(command))
 
350
    
 
351
    def checked_ok(self):
 
352
        """Bump up the timeout for this client.
 
353
        This should only be called when the client has been seen,
 
354
        alive and well.
 
355
        """
 
356
        self.last_checked_ok = datetime.datetime.utcnow()
 
357
        gobject.source_remove(self.disable_initiator_tag)
 
358
        self.disable_initiator_tag = (gobject.timeout_add
 
359
                                      (self.timeout_milliseconds(),
 
360
                                       self.disable))
 
361
        if self.use_dbus:
 
362
            # Emit D-Bus signal
 
363
            self.PropertyChanged(
 
364
                dbus.String(u"last_checked_ok"),
 
365
                (_datetime_to_dbus(self.last_checked_ok,
 
366
                                   variant_level=1)))
 
367
    
313
368
    def start_checker(self):
314
369
        """Start a new checker subprocess if one is not running.
315
370
        If a checker already exists, leave it running and do
324
379
        # is as it should be.
325
380
        if self.checker is None:
326
381
            try:
327
 
                # In case check_command has exactly one % operator
328
 
                command = self.check_command % self.host
 
382
                # In case checker_command has exactly one % operator
 
383
                command = self.checker_command % self.host
329
384
            except TypeError:
330
385
                # Escape attributes for the shell
331
386
                escaped_attrs = dict((key, re.escape(str(val)))
332
387
                                     for key, val in
333
388
                                     vars(self).iteritems())
334
389
                try:
335
 
                    command = self.check_command % escaped_attrs
 
390
                    command = self.checker_command % escaped_attrs
336
391
                except TypeError, error:
337
392
                    logger.error(u'Could not format string "%s":'
338
 
                                 u' %s', self.check_command, error)
 
393
                                 u' %s', self.checker_command, error)
339
394
                    return True # Try again later
340
395
            try:
341
396
                logger.info(u"Starting checker %r for %s",
347
402
                self.checker = subprocess.Popen(command,
348
403
                                                close_fds=True,
349
404
                                                shell=True, cwd="/")
350
 
                self.checker_callback_tag = gobject.child_watch_add\
351
 
                                            (self.checker.pid,
352
 
                                             self.checker_callback)
 
405
                if self.use_dbus:
 
406
                    # Emit D-Bus signal
 
407
                    self.CheckerStarted(command)
 
408
                    self.PropertyChanged(
 
409
                        dbus.String("checker_running"),
 
410
                        dbus.Boolean(True, variant_level=1))
 
411
                self.checker_callback_tag = (gobject.child_watch_add
 
412
                                             (self.checker.pid,
 
413
                                              self.checker_callback,
 
414
                                              data=command))
353
415
            except OSError, error:
354
416
                logger.error(u"Failed to start subprocess: %s",
355
417
                             error)
356
418
        # Re-run this periodically if run by gobject.timeout_add
357
419
        return True
 
420
    
358
421
    def stop_checker(self):
359
422
        """Force the checker process, if any, to stop."""
360
423
        if self.checker_callback_tag:
372
435
            if error.errno != errno.ESRCH: # No such process
373
436
                raise
374
437
        self.checker = None
 
438
        if self.use_dbus:
 
439
            self.PropertyChanged(dbus.String(u"checker_running"),
 
440
                                 dbus.Boolean(False, variant_level=1))
 
441
    
375
442
    def still_valid(self):
376
443
        """Has the timeout not yet passed for this client?"""
377
 
        now = datetime.datetime.now()
 
444
        if not getattr(self, "enabled", False):
 
445
            return False
 
446
        now = datetime.datetime.utcnow()
378
447
        if self.last_checked_ok is None:
379
448
            return now < (self.created + self.timeout)
380
449
        else:
381
450
            return now < (self.last_checked_ok + self.timeout)
 
451
    
 
452
    ## D-Bus methods & signals
 
453
    _interface = u"se.bsnet.fukt.Mandos.Client"
 
454
    
 
455
    # CheckedOK - method
 
456
    CheckedOK = dbus.service.method(_interface)(checked_ok)
 
457
    CheckedOK.__name__ = "CheckedOK"
 
458
    
 
459
    # CheckerCompleted - signal
 
460
    @dbus.service.signal(_interface, signature="nxs")
 
461
    def CheckerCompleted(self, exitcode, waitstatus, command):
 
462
        "D-Bus signal"
 
463
        pass
 
464
    
 
465
    # CheckerStarted - signal
 
466
    @dbus.service.signal(_interface, signature="s")
 
467
    def CheckerStarted(self, command):
 
468
        "D-Bus signal"
 
469
        pass
 
470
    
 
471
    # GetAllProperties - method
 
472
    @dbus.service.method(_interface, out_signature="a{sv}")
 
473
    def GetAllProperties(self):
 
474
        "D-Bus method"
 
475
        return dbus.Dictionary({
 
476
                dbus.String("name"):
 
477
                    dbus.String(self.name, variant_level=1),
 
478
                dbus.String("fingerprint"):
 
479
                    dbus.String(self.fingerprint, variant_level=1),
 
480
                dbus.String("host"):
 
481
                    dbus.String(self.host, variant_level=1),
 
482
                dbus.String("created"):
 
483
                    _datetime_to_dbus(self.created, variant_level=1),
 
484
                dbus.String("last_enabled"):
 
485
                    (_datetime_to_dbus(self.last_enabled,
 
486
                                       variant_level=1)
 
487
                     if self.last_enabled is not None
 
488
                     else dbus.Boolean(False, variant_level=1)),
 
489
                dbus.String("enabled"):
 
490
                    dbus.Boolean(self.enabled, variant_level=1),
 
491
                dbus.String("last_checked_ok"):
 
492
                    (_datetime_to_dbus(self.last_checked_ok,
 
493
                                       variant_level=1)
 
494
                     if self.last_checked_ok is not None
 
495
                     else dbus.Boolean (False, variant_level=1)),
 
496
                dbus.String("timeout"):
 
497
                    dbus.UInt64(self.timeout_milliseconds(),
 
498
                                variant_level=1),
 
499
                dbus.String("interval"):
 
500
                    dbus.UInt64(self.interval_milliseconds(),
 
501
                                variant_level=1),
 
502
                dbus.String("checker"):
 
503
                    dbus.String(self.checker_command,
 
504
                                variant_level=1),
 
505
                dbus.String("checker_running"):
 
506
                    dbus.Boolean(self.checker is not None,
 
507
                                 variant_level=1),
 
508
                dbus.String("object_path"):
 
509
                    dbus.ObjectPath(self.dbus_object_path,
 
510
                                    variant_level=1)
 
511
                }, signature="sv")
 
512
    
 
513
    # IsStillValid - method
 
514
    IsStillValid = (dbus.service.method(_interface, out_signature="b")
 
515
                    (still_valid))
 
516
    IsStillValid.__name__ = "IsStillValid"
 
517
    
 
518
    # PropertyChanged - signal
 
519
    @dbus.service.signal(_interface, signature="sv")
 
520
    def PropertyChanged(self, property, value):
 
521
        "D-Bus signal"
 
522
        pass
 
523
    
 
524
    # SetChecker - method
 
525
    @dbus.service.method(_interface, in_signature="s")
 
526
    def SetChecker(self, checker):
 
527
        "D-Bus setter method"
 
528
        self.checker_command = checker
 
529
        # Emit D-Bus signal
 
530
        self.PropertyChanged(dbus.String(u"checker"),
 
531
                             dbus.String(self.checker_command,
 
532
                                         variant_level=1))
 
533
    
 
534
    # SetHost - method
 
535
    @dbus.service.method(_interface, in_signature="s")
 
536
    def SetHost(self, host):
 
537
        "D-Bus setter method"
 
538
        self.host = host
 
539
        # Emit D-Bus signal
 
540
        self.PropertyChanged(dbus.String(u"host"),
 
541
                             dbus.String(self.host, variant_level=1))
 
542
    
 
543
    # SetInterval - method
 
544
    @dbus.service.method(_interface, in_signature="t")
 
545
    def SetInterval(self, milliseconds):
 
546
        self.interval = datetime.timedelta(0, 0, 0, milliseconds)
 
547
        # Emit D-Bus signal
 
548
        self.PropertyChanged(dbus.String(u"interval"),
 
549
                             (dbus.UInt64(self.interval_milliseconds(),
 
550
                                          variant_level=1)))
 
551
    
 
552
    # SetSecret - method
 
553
    @dbus.service.method(_interface, in_signature="ay",
 
554
                         byte_arrays=True)
 
555
    def SetSecret(self, secret):
 
556
        "D-Bus setter method"
 
557
        self.secret = str(secret)
 
558
    
 
559
    # SetTimeout - method
 
560
    @dbus.service.method(_interface, in_signature="t")
 
561
    def SetTimeout(self, milliseconds):
 
562
        self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
 
563
        # Emit D-Bus signal
 
564
        self.PropertyChanged(dbus.String(u"timeout"),
 
565
                             (dbus.UInt64(self.timeout_milliseconds(),
 
566
                                          variant_level=1)))
 
567
    
 
568
    # Enable - method
 
569
    Enable = dbus.service.method(_interface)(enable)
 
570
    Enable.__name__ = "Enable"
 
571
    
 
572
    # StartChecker - method
 
573
    @dbus.service.method(_interface)
 
574
    def StartChecker(self):
 
575
        "D-Bus method"
 
576
        self.start_checker()
 
577
    
 
578
    # Disable - method
 
579
    @dbus.service.method(_interface)
 
580
    def Disable(self):
 
581
        "D-Bus method"
 
582
        self.disable()
 
583
    
 
584
    # StopChecker - method
 
585
    StopChecker = dbus.service.method(_interface)(stop_checker)
 
586
    StopChecker.__name__ = "StopChecker"
 
587
    
 
588
    del _interface
382
589
 
383
590
 
384
591
def peer_certificate(session):
385
592
    "Return the peer's OpenPGP certificate as a bytestring"
386
593
    # If not an OpenPGP certificate...
387
 
    if gnutls.library.functions.gnutls_certificate_type_get\
388
 
            (session._c_object) \
389
 
           != gnutls.library.constants.GNUTLS_CRT_OPENPGP:
 
594
    if (gnutls.library.functions
 
595
        .gnutls_certificate_type_get(session._c_object)
 
596
        != gnutls.library.constants.GNUTLS_CRT_OPENPGP):
390
597
        # ...do the normal thing
391
598
        return session.peer_certificate
392
 
    list_size = ctypes.c_uint()
393
 
    cert_list = gnutls.library.functions.gnutls_certificate_get_peers\
394
 
        (session._c_object, ctypes.byref(list_size))
 
599
    list_size = ctypes.c_uint(1)
 
600
    cert_list = (gnutls.library.functions
 
601
                 .gnutls_certificate_get_peers
 
602
                 (session._c_object, ctypes.byref(list_size)))
 
603
    if not bool(cert_list) and list_size.value != 0:
 
604
        raise gnutls.errors.GNUTLSError("error getting peer"
 
605
                                        " certificate")
395
606
    if list_size.value == 0:
396
607
        return None
397
608
    cert = cert_list[0]
401
612
def fingerprint(openpgp):
402
613
    "Convert an OpenPGP bytestring to a hexdigit fingerprint string"
403
614
    # New GnuTLS "datum" with the OpenPGP public key
404
 
    datum = gnutls.library.types.gnutls_datum_t\
405
 
        (ctypes.cast(ctypes.c_char_p(openpgp),
406
 
                     ctypes.POINTER(ctypes.c_ubyte)),
407
 
         ctypes.c_uint(len(openpgp)))
 
615
    datum = (gnutls.library.types
 
616
             .gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
 
617
                                         ctypes.POINTER
 
618
                                         (ctypes.c_ubyte)),
 
619
                             ctypes.c_uint(len(openpgp))))
408
620
    # New empty GnuTLS certificate
409
621
    crt = gnutls.library.types.gnutls_openpgp_crt_t()
410
 
    gnutls.library.functions.gnutls_openpgp_crt_init\
411
 
        (ctypes.byref(crt))
 
622
    (gnutls.library.functions
 
623
     .gnutls_openpgp_crt_init(ctypes.byref(crt)))
412
624
    # Import the OpenPGP public key into the certificate
413
 
    gnutls.library.functions.gnutls_openpgp_crt_import\
414
 
                    (crt, ctypes.byref(datum),
415
 
                     gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
 
625
    (gnutls.library.functions
 
626
     .gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
 
627
                                gnutls.library.constants
 
628
                                .GNUTLS_OPENPGP_FMT_RAW))
416
629
    # Verify the self signature in the key
417
 
    crtverify = ctypes.c_uint();
418
 
    gnutls.library.functions.gnutls_openpgp_crt_verify_self\
419
 
        (crt, 0, ctypes.byref(crtverify))
 
630
    crtverify = ctypes.c_uint()
 
631
    (gnutls.library.functions
 
632
     .gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
420
633
    if crtverify.value != 0:
421
634
        gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
422
635
        raise gnutls.errors.CertificateSecurityError("Verify failed")
423
636
    # New buffer for the fingerprint
424
 
    buffer = ctypes.create_string_buffer(20)
425
 
    buffer_length = ctypes.c_size_t()
 
637
    buf = ctypes.create_string_buffer(20)
 
638
    buf_len = ctypes.c_size_t()
426
639
    # Get the fingerprint from the certificate into the buffer
427
 
    gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint\
428
 
        (crt, ctypes.byref(buffer), ctypes.byref(buffer_length))
 
640
    (gnutls.library.functions
 
641
     .gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
 
642
                                         ctypes.byref(buf_len)))
429
643
    # Deinit the certificate
430
644
    gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
431
645
    # Convert the buffer to a Python bytestring
432
 
    fpr = ctypes.string_at(buffer, buffer_length.value)
 
646
    fpr = ctypes.string_at(buf, buf_len.value)
433
647
    # Convert the bytestring to hexadecimal notation
434
648
    hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
435
649
    return hex_fpr
436
650
 
437
651
 
438
 
class tcp_handler(SocketServer.BaseRequestHandler, object):
 
652
class TCP_handler(SocketServer.BaseRequestHandler, object):
439
653
    """A TCP request handler class.
440
654
    Instantiated by IPv6_TCPServer for each request to handle it.
441
655
    Note: This will run in its own forked process."""
442
656
    
443
657
    def handle(self):
444
658
        logger.info(u"TCP connection from: %s",
445
 
                     unicode(self.client_address))
446
 
        session = gnutls.connection.ClientSession\
447
 
                  (self.request, gnutls.connection.X509Credentials())
 
659
                    unicode(self.client_address))
 
660
        session = (gnutls.connection
 
661
                   .ClientSession(self.request,
 
662
                                  gnutls.connection
 
663
                                  .X509Credentials()))
448
664
        
449
665
        line = self.request.makefile().readline()
450
666
        logger.debug(u"Protocol version: %r", line)
461
677
        # using OpenPGP certificates.
462
678
        
463
679
        #priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
464
 
        #                "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
465
 
        #                "+DHE-DSS"))
466
 
        priority = "NORMAL"             # Fallback default, since this
467
 
                                        # MUST be set.
468
 
        if self.server.settings["priority"]:
469
 
            priority = self.server.settings["priority"]
470
 
        gnutls.library.functions.gnutls_priority_set_direct\
471
 
            (session._c_object, priority, None);
 
680
        #                     "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
 
681
        #                     "+DHE-DSS"))
 
682
        # Use a fallback default, since this MUST be set.
 
683
        priority = self.server.settings.get("priority", "NORMAL")
 
684
        (gnutls.library.functions
 
685
         .gnutls_priority_set_direct(session._c_object,
 
686
                                     priority, None))
472
687
        
473
688
        try:
474
689
            session.handshake()
477
692
            # Do not run session.bye() here: the session is not
478
693
            # established.  Just abandon the request.
479
694
            return
 
695
        logger.debug(u"Handshake succeeded")
480
696
        try:
481
697
            fpr = fingerprint(peer_certificate(session))
482
698
        except (TypeError, gnutls.errors.GNUTLSError), error:
484
700
            session.bye()
485
701
            return
486
702
        logger.debug(u"Fingerprint: %s", fpr)
487
 
        client = None
 
703
        
488
704
        for c in self.server.clients:
489
705
            if c.fingerprint == fpr:
490
706
                client = c
491
707
                break
492
 
        if not client:
 
708
        else:
493
709
            logger.warning(u"Client not found for fingerprint: %s",
494
710
                           fpr)
495
711
            session.bye()
502
718
                           vars(client))
503
719
            session.bye()
504
720
            return
 
721
        ## This won't work here, since we're in a fork.
 
722
        # client.checked_ok()
505
723
        sent_size = 0
506
724
        while sent_size < len(client.secret):
507
725
            sent = session.send(client.secret[sent_size:])
512
730
        session.bye()
513
731
 
514
732
 
515
 
class IPv6_TCPServer(SocketServer.ForkingTCPServer, object):
 
733
class IPv6_TCPServer(SocketServer.ForkingMixIn,
 
734
                     SocketServer.TCPServer, object):
516
735
    """IPv6 TCP server.  Accepts 'None' as address and/or port.
517
736
    Attributes:
518
737
        settings:       Server settings
519
738
        clients:        Set() of Client objects
 
739
        enabled:        Boolean; whether this server is activated yet
520
740
    """
521
741
    address_family = socket.AF_INET6
522
742
    def __init__(self, *args, **kwargs):
526
746
        if "clients" in kwargs:
527
747
            self.clients = kwargs["clients"]
528
748
            del kwargs["clients"]
529
 
        return super(type(self), self).__init__(*args, **kwargs)
 
749
        self.enabled = False
 
750
        super(IPv6_TCPServer, self).__init__(*args, **kwargs)
530
751
    def server_bind(self):
531
752
        """This overrides the normal server_bind() function
532
753
        to bind to an interface if one was specified, and also NOT to
544
765
                                 u" bind to interface %s",
545
766
                                 self.settings["interface"])
546
767
                else:
547
 
                    raise error
 
768
                    raise
548
769
        # Only bind(2) the socket if we really need to.
549
770
        if self.server_address[0] or self.server_address[1]:
550
771
            if not self.server_address[0]:
561
782
#                                            if_nametoindex
562
783
#                                            (self.settings
563
784
#                                             ["interface"]))
564
 
            return super(type(self), self).server_bind()
 
785
            return super(IPv6_TCPServer, self).server_bind()
 
786
    def server_activate(self):
 
787
        if self.enabled:
 
788
            return super(IPv6_TCPServer, self).server_activate()
 
789
    def enable(self):
 
790
        self.enabled = True
565
791
 
566
792
 
567
793
def string_to_delta(interval):
568
794
    """Parse a string and return a datetime.timedelta
569
 
 
 
795
    
570
796
    >>> string_to_delta('7d')
571
797
    datetime.timedelta(7)
572
798
    >>> string_to_delta('60s')
583
809
    timevalue = datetime.timedelta(0)
584
810
    for s in interval.split():
585
811
        try:
586
 
            suffix=unicode(s[-1])
587
 
            value=int(s[:-1])
 
812
            suffix = unicode(s[-1])
 
813
            value = int(s[:-1])
588
814
            if suffix == u"d":
589
815
                delta = datetime.timedelta(value)
590
816
            elif suffix == u"s":
624
850
    elif state == avahi.ENTRY_GROUP_FAILURE:
625
851
        logger.critical(u"Avahi: Error in group state changed %s",
626
852
                        unicode(error))
627
 
        raise AvahiGroupError("State changed: %s", str(error))
 
853
        raise AvahiGroupError(u"State changed: %s" % unicode(error))
628
854
 
629
855
def if_nametoindex(interface):
630
856
    """Call the C function if_nametoindex(), or equivalent"""
631
857
    global if_nametoindex
632
858
    try:
633
 
        if "ctypes.util" not in sys.modules:
634
 
            import ctypes.util
635
 
        if_nametoindex = ctypes.cdll.LoadLibrary\
636
 
            (ctypes.util.find_library("c")).if_nametoindex
 
859
        if_nametoindex = (ctypes.cdll.LoadLibrary
 
860
                          (ctypes.util.find_library("c"))
 
861
                          .if_nametoindex)
637
862
    except (OSError, AttributeError):
638
863
        if "struct" not in sys.modules:
639
864
            import struct
642
867
        def if_nametoindex(interface):
643
868
            "Get an interface index the hard way, i.e. using fcntl()"
644
869
            SIOCGIFINDEX = 0x8933  # From /usr/include/linux/sockios.h
645
 
            s = socket.socket()
646
 
            ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
647
 
                                struct.pack("16s16x", interface))
648
 
            s.close()
 
870
            with closing(socket.socket()) as s:
 
871
                ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
 
872
                                    struct.pack("16s16x", interface))
649
873
            interface_index = struct.unpack("I", ifreq[16:20])[0]
650
874
            return interface_index
651
875
    return if_nametoindex(interface)
675
899
 
676
900
 
677
901
def main():
678
 
    global main_loop_started
679
 
    main_loop_started = False
680
 
    
681
 
    parser = OptionParser(version = "%%prog %s" % version)
 
902
    parser = optparse.OptionParser(version = "%%prog %s" % version)
682
903
    parser.add_option("-i", "--interface", type="string",
683
904
                      metavar="IF", help="Bind to interface IF")
684
905
    parser.add_option("-a", "--address", type="string",
685
906
                      help="Address to listen for requests on")
686
907
    parser.add_option("-p", "--port", type="int",
687
908
                      help="Port number to receive requests on")
688
 
    parser.add_option("--check", action="store_true", default=False,
 
909
    parser.add_option("--check", action="store_true",
689
910
                      help="Run self-test")
690
911
    parser.add_option("--debug", action="store_true",
691
912
                      help="Debug mode; run in foreground and log to"
698
919
                      default="/etc/mandos", metavar="DIR",
699
920
                      help="Directory to search for configuration"
700
921
                      " files")
701
 
    (options, args) = parser.parse_args()
 
922
    parser.add_option("--no-dbus", action="store_false",
 
923
                      dest="use_dbus",
 
924
                      help="Do not provide D-Bus system bus"
 
925
                      " interface")
 
926
    options = parser.parse_args()[0]
702
927
    
703
928
    if options.check:
704
929
        import doctest
713
938
                        "priority":
714
939
                        "SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
715
940
                        "servicename": "Mandos",
 
941
                        "use_dbus": "True",
716
942
                        }
717
943
    
718
944
    # Parse config file for server-global settings
721
947
    server_config.read(os.path.join(options.configdir, "mandos.conf"))
722
948
    # Convert the SafeConfigParser object to a dict
723
949
    server_settings = server_config.defaults()
724
 
    # Use getboolean on the boolean config option
725
 
    server_settings["debug"] = server_config.getboolean\
726
 
                               ("DEFAULT", "debug")
 
950
    # Use the appropriate methods on the non-string config options
 
951
    server_settings["debug"] = server_config.getboolean("DEFAULT",
 
952
                                                        "debug")
 
953
    server_settings["use_dbus"] = server_config.getboolean("DEFAULT",
 
954
                                                           "use_dbus")
 
955
    if server_settings["port"]:
 
956
        server_settings["port"] = server_config.getint("DEFAULT",
 
957
                                                       "port")
727
958
    del server_config
728
959
    
729
960
    # Override the settings from the config file with command line
730
961
    # options, if set.
731
962
    for option in ("interface", "address", "port", "debug",
732
 
                   "priority", "servicename", "configdir"):
 
963
                   "priority", "servicename", "configdir",
 
964
                   "use_dbus"):
733
965
        value = getattr(options, option)
734
966
        if value is not None:
735
967
            server_settings[option] = value
736
968
    del options
737
969
    # Now we have our good server settings in "server_settings"
738
970
    
 
971
    # For convenience
739
972
    debug = server_settings["debug"]
 
973
    use_dbus = server_settings["use_dbus"]
740
974
    
741
975
    if not debug:
742
976
        syslogger.setLevel(logging.WARNING)
743
977
        console.setLevel(logging.WARNING)
744
978
    
745
979
    if server_settings["servicename"] != "Mandos":
746
 
        syslogger.setFormatter(logging.Formatter\
 
980
        syslogger.setFormatter(logging.Formatter
747
981
                               ('Mandos (%s): %%(levelname)s:'
748
982
                                ' %%(message)s'
749
983
                                % server_settings["servicename"]))
751
985
    # Parse config file with clients
752
986
    client_defaults = { "timeout": "1h",
753
987
                        "interval": "5m",
754
 
                        "checker": "fping -q -- %(host)s",
 
988
                        "checker": "fping -q -- %%(host)s",
755
989
                        "host": "",
756
990
                        }
757
991
    client_config = ConfigParser.SafeConfigParser(client_defaults)
758
992
    client_config.read(os.path.join(server_settings["configdir"],
759
993
                                    "clients.conf"))
760
994
    
 
995
    clients = Set()
 
996
    tcp_server = IPv6_TCPServer((server_settings["address"],
 
997
                                 server_settings["port"]),
 
998
                                TCP_handler,
 
999
                                settings=server_settings,
 
1000
                                clients=clients)
 
1001
    pidfilename = "/var/run/mandos.pid"
 
1002
    try:
 
1003
        pidfile = open(pidfilename, "w")
 
1004
    except IOError:
 
1005
        logger.error("Could not open file %r", pidfilename)
 
1006
    
 
1007
    try:
 
1008
        uid = pwd.getpwnam("_mandos").pw_uid
 
1009
        gid = pwd.getpwnam("_mandos").pw_gid
 
1010
    except KeyError:
 
1011
        try:
 
1012
            uid = pwd.getpwnam("mandos").pw_uid
 
1013
            gid = pwd.getpwnam("mandos").pw_gid
 
1014
        except KeyError:
 
1015
            try:
 
1016
                uid = pwd.getpwnam("nobody").pw_uid
 
1017
                gid = pwd.getpwnam("nogroup").pw_gid
 
1018
            except KeyError:
 
1019
                uid = 65534
 
1020
                gid = 65534
 
1021
    try:
 
1022
        os.setgid(gid)
 
1023
        os.setuid(uid)
 
1024
    except OSError, error:
 
1025
        if error[0] != errno.EPERM:
 
1026
            raise error
 
1027
    
 
1028
    # Enable all possible GnuTLS debugging
 
1029
    if debug:
 
1030
        # "Use a log level over 10 to enable all debugging options."
 
1031
        # - GnuTLS manual
 
1032
        gnutls.library.functions.gnutls_global_set_log_level(11)
 
1033
        
 
1034
        @gnutls.library.types.gnutls_log_func
 
1035
        def debug_gnutls(level, string):
 
1036
            logger.debug("GnuTLS: %s", string[:-1])
 
1037
        
 
1038
        (gnutls.library.functions
 
1039
         .gnutls_global_set_log_function(debug_gnutls))
 
1040
    
761
1041
    global service
762
1042
    service = AvahiService(name = server_settings["servicename"],
763
 
                           type = "_mandos._tcp", );
 
1043
                           servicetype = "_mandos._tcp", )
764
1044
    if server_settings["interface"]:
765
 
        service.interface = if_nametoindex\
766
 
                            (server_settings["interface"])
 
1045
        service.interface = (if_nametoindex
 
1046
                             (server_settings["interface"]))
767
1047
    
768
1048
    global main_loop
769
1049
    global bus
776
1056
                                           avahi.DBUS_PATH_SERVER),
777
1057
                            avahi.DBUS_INTERFACE_SERVER)
778
1058
    # End of Avahi example code
779
 
    
780
 
    clients = Set()
781
 
    def remove_from_clients(client):
782
 
        clients.remove(client)
783
 
        if not clients:
784
 
            logger.critical(u"No clients left, exiting")
785
 
            sys.exit()
 
1059
    if use_dbus:
 
1060
        bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
786
1061
    
787
1062
    clients.update(Set(Client(name = section,
788
 
                              stop_hook = remove_from_clients,
789
1063
                              config
790
 
                              = dict(client_config.items(section)))
 
1064
                              = dict(client_config.items(section)),
 
1065
                              use_dbus = use_dbus)
791
1066
                       for section in client_config.sections()))
792
1067
    if not clients:
793
 
        logger.critical(u"No clients defined")
794
 
        sys.exit(1)
 
1068
        logger.warning(u"No clients defined")
795
1069
    
796
1070
    if debug:
797
1071
        # Redirect stdin so all checkers get /dev/null
805
1079
        # Close all input and output, do double fork, etc.
806
1080
        daemon()
807
1081
    
808
 
    pidfilename = "/var/run/mandos/mandos.pid"
809
 
    pid = os.getpid()
810
1082
    try:
811
 
        pidfile = open(pidfilename, "w")
 
1083
        pid = os.getpid()
812
1084
        pidfile.write(str(pid) + "\n")
813
1085
        pidfile.close()
814
1086
        del pidfile
815
 
    except IOError, err:
816
 
        logger.error(u"Could not write %s file with PID %d",
817
 
                     pidfilename, os.getpid())
 
1087
    except IOError:
 
1088
        logger.error(u"Could not write to file %r with PID %d",
 
1089
                     pidfilename, pid)
 
1090
    except NameError:
 
1091
        # "pidfile" was never created
 
1092
        pass
 
1093
    del pidfilename
818
1094
    
819
1095
    def cleanup():
820
1096
        "Cleanup function; run on exit"
827
1103
        
828
1104
        while clients:
829
1105
            client = clients.pop()
830
 
            client.stop_hook = None
831
 
            client.stop()
 
1106
            client.disable_hook = None
 
1107
            client.disable()
832
1108
    
833
1109
    atexit.register(cleanup)
834
1110
    
837
1113
    signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
838
1114
    signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
839
1115
    
 
1116
    if use_dbus:
 
1117
        class MandosServer(dbus.service.Object):
 
1118
            """A D-Bus proxy object"""
 
1119
            def __init__(self):
 
1120
                dbus.service.Object.__init__(self, bus, "/")
 
1121
            _interface = u"se.bsnet.fukt.Mandos"
 
1122
            
 
1123
            @dbus.service.signal(_interface, signature="oa{sv}")
 
1124
            def ClientAdded(self, objpath, properties):
 
1125
                "D-Bus signal"
 
1126
                pass
 
1127
            
 
1128
            @dbus.service.signal(_interface, signature="os")
 
1129
            def ClientRemoved(self, objpath, name):
 
1130
                "D-Bus signal"
 
1131
                pass
 
1132
            
 
1133
            @dbus.service.method(_interface, out_signature="ao")
 
1134
            def GetAllClients(self):
 
1135
                "D-Bus method"
 
1136
                return dbus.Array(c.dbus_object_path for c in clients)
 
1137
            
 
1138
            @dbus.service.method(_interface, out_signature="a{oa{sv}}")
 
1139
            def GetAllClientsWithProperties(self):
 
1140
                "D-Bus method"
 
1141
                return dbus.Dictionary(
 
1142
                    ((c.dbus_object_path, c.GetAllProperties())
 
1143
                     for c in clients),
 
1144
                    signature="oa{sv}")
 
1145
            
 
1146
            @dbus.service.method(_interface, in_signature="o")
 
1147
            def RemoveClient(self, object_path):
 
1148
                "D-Bus method"
 
1149
                for c in clients:
 
1150
                    if c.dbus_object_path == object_path:
 
1151
                        clients.remove(c)
 
1152
                        # Don't signal anything except ClientRemoved
 
1153
                        c.use_dbus = False
 
1154
                        c.disable()
 
1155
                        # Emit D-Bus signal
 
1156
                        self.ClientRemoved(object_path, c.name)
 
1157
                        return
 
1158
                raise KeyError
 
1159
            
 
1160
            del _interface
 
1161
        
 
1162
        mandos_server = MandosServer()
 
1163
    
840
1164
    for client in clients:
841
 
        client.start()
842
 
    
843
 
    tcp_server = IPv6_TCPServer((server_settings["address"],
844
 
                                 server_settings["port"]),
845
 
                                tcp_handler,
846
 
                                settings=server_settings,
847
 
                                clients=clients)
 
1165
        if use_dbus:
 
1166
            # Emit D-Bus signal
 
1167
            mandos_server.ClientAdded(client.dbus_object_path,
 
1168
                                      client.GetAllProperties())
 
1169
        client.enable()
 
1170
    
 
1171
    tcp_server.enable()
 
1172
    tcp_server.server_activate()
 
1173
    
848
1174
    # Find out what port we got
849
1175
    service.port = tcp_server.socket.getsockname()[1]
850
1176
    logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
864
1190
        
865
1191
        gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
866
1192
                             lambda *args, **kwargs:
867
 
                             tcp_server.handle_request\
868
 
                             (*args[2:], **kwargs) or True)
 
1193
                             (tcp_server.handle_request
 
1194
                              (*args[2:], **kwargs) or True))
869
1195
        
870
1196
        logger.debug(u"Starting main loop")
871
 
        main_loop_started = True
872
1197
        main_loop.run()
873
1198
    except AvahiError, error:
874
 
        logger.critical(u"AvahiError: %s" + unicode(error))
 
1199
        logger.critical(u"AvahiError: %s", error)
875
1200
        sys.exit(1)
876
1201
    except KeyboardInterrupt:
877
1202
        if debug:
878
 
            print
 
1203
            print >> sys.stderr
 
1204
        logger.debug("Server received KeyboardInterrupt")
 
1205
    logger.debug("Server exiting")
879
1206
 
880
1207
if __name__ == '__main__':
881
1208
    main()