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- Committer: Teddy Hogeborn
- Date: 2013-10-28 20:08:32 UTC
- mto: (237.7.272 trunk)
- mto: This revision was merged to the branch mainline in revision 307.
- Revision ID: teddy@recompile.se-20131028200832-80d1k8c5e8mugpkx
Syntax fix; use "raise" better in Mandos server.
* mandos: Syntax fix; use "raise" better in Mandos server; Always
raise instances, not classes, skip argument when re-raising,
etc.
* mandos: Syntax fix; use "raise" better in Mandos server; Always
raise instances, not classes, skip argument when re-raising,
etc.
- files removed:
- debian/upstream
- plugin-helpers
- files modified:
- DBUS-API
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
14
# Copyright © 2008-2013 Teddy Hogeborn
15
# Copyright © 2008-2013 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
36
36
37
37
from future_builtins import *
38
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
39
import SocketServer as socketserver
43
40
import socket
44
41
import argparse
45
42
import datetime
50
47
import gnutls.library.functions
51
48
import gnutls.library.constants
52
49
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
50
import ConfigParser as configparser
57
51
import sys
58
52
import re
59
53
import os
68
62
import struct
69
63
import fcntl
70
64
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
65
import cPickle as pickle
75
66
import multiprocessing
76
67
import types
77
68
import binascii
78
69
import tempfile
79
70
import itertools
80
71
import collections
81
import codecs
82
72
83
73
import dbus
84
74
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
75
import gobject
89
76
import avahi
90
77
from dbus.mainloop.glib import DBusGMainLoop
91
78
import ctypes
101
88
except ImportError:
102
89
SO_BINDTODEVICE = None
103
90
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.7.1"
91
version = "1.6.2"
108
92
stored_state_file = "clients.pickle"
109
93
110
94
logger = logging.getLogger()
111
syslogger = None
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
112
98
113
99
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
116
103
except (OSError, AttributeError):
117
118
104
def if_nametoindex(interface):
119
105
"Get an interface index the hard way, i.e. using fcntl()"
120
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
107
with contextlib.closing(socket.socket()) as s:
122
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
125
113
return interface_index
126
114
127
115
128
116
def initlogger(debug, level=logging.WARNING):
129
117
"""init logger and add loglevel"""
130
118
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
119
syslogger.setFormatter(logging.Formatter
136
120
('Mandos [%(process)d]: %(levelname)s:'
137
121
' %(message)s'))
154
138
155
139
class PGPEngine(object):
156
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
141
def __init__(self):
159
142
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
143
self.gnupgargs = ['--batch',
199
182
200
183
def encrypt(self, data, password):
201
184
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
186
) as passfile:
204
187
passfile.write(passphrase)
205
188
passfile.flush()
206
189
proc = subprocess.Popen(['gpg', '--symmetric',
217
200
218
201
def decrypt(self, data, password):
219
202
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
204
) as passfile:
222
205
passfile.write(passphrase)
223
206
passfile.flush()
224
207
proc = subprocess.Popen(['gpg', '--decrypt',
228
211
stdin = subprocess.PIPE,
229
212
stdout = subprocess.PIPE,
230
213
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
214
decrypted_plaintext, err = proc.communicate(input
215
= data)
232
216
if proc.returncode != 0:
233
217
raise PGPError(err)
234
218
return decrypted_plaintext
237
221
class AvahiError(Exception):
238
222
def __init__(self, value, *args, **kwargs):
239
223
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
224
super(AvahiError, self).__init__(value, *args, **kwargs)
225
def __unicode__(self):
226
return unicode(repr(self.value))
243
227
244
228
class AvahiServiceError(AvahiError):
245
229
pass
246
230
247
248
231
class AvahiGroupError(AvahiError):
249
232
pass
250
233
270
253
bus: dbus.SystemBus()
271
254
"""
272
255
273
def __init__(self,
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
256
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
257
servicetype = None, port = None, TXT = None,
258
domain = "", host = "", max_renames = 32768,
259
protocol = avahi.PROTO_UNSPEC, bus = None):
284
260
self.interface = interface
285
261
self.name = name
286
262
self.type = servicetype
296
272
self.bus = bus
297
273
self.entry_group_state_changed_match = None
298
274
299
def rename(self, remove=True):
275
def rename(self):
300
276
"""Derived from the Avahi example code"""
301
277
if self.rename_count >= self.max_renames:
302
278
logger.critical("No suitable Zeroconf service name found"
303
279
" after %i retries, exiting.",
304
280
self.rename_count)
305
281
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
282
self.name = unicode(self.server
283
.GetAlternativeServiceName(self.name))
309
284
logger.info("Changing Zeroconf service name to %r ...",
310
285
self.name)
311
if remove:
312
self.remove()
286
self.remove()
313
287
try:
314
288
self.add()
315
289
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
320
else:
321
logger.critical("D-Bus Exception", exc_info=error)
322
self.cleanup()
323
os._exit(1)
290
logger.critical("D-Bus Exception", exc_info=error)
291
self.cleanup()
292
os._exit(1)
293
self.rename_count += 1
324
294
325
295
def remove(self):
326
296
"""Derived from the Avahi example code"""
364
334
self.rename()
365
335
elif state == avahi.ENTRY_GROUP_FAILURE:
366
336
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
337
unicode(error))
338
raise AvahiGroupError("State changed: {0!s}"
339
.format(error))
369
340
370
341
def cleanup(self):
371
342
"""Derived from the Avahi example code"""
381
352
def server_state_changed(self, state, error=None):
382
353
"""Derived from the Avahi example code"""
383
354
logger.debug("Avahi server state change: %i", state)
384
bad_states = {
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
389
}
355
bad_states = { avahi.SERVER_INVALID:
356
"Zeroconf server invalid",
357
avahi.SERVER_REGISTERING: None,
358
avahi.SERVER_COLLISION:
359
"Zeroconf server name collision",
360
avahi.SERVER_FAILURE:
361
"Zeroconf server failure" }
390
362
if state in bad_states:
391
363
if bad_states[state] is not None:
392
364
if error is None:
395
367
logger.error(bad_states[state] + ": %r", error)
396
368
self.cleanup()
397
369
elif state == avahi.SERVER_RUNNING:
398
try:
399
self.add()
400
except dbus.exceptions.DBusException as error:
401
if (error.get_dbus_name()
402
== "org.freedesktop.Avahi.CollisionError"):
403
logger.info("Local Zeroconf service name"
404
" collision.")
405
return self.rename(remove=False)
406
else:
407
logger.critical("D-Bus Exception", exc_info=error)
408
self.cleanup()
409
os._exit(1)
370
self.add()
410
371
else:
411
372
if error is None:
412
373
logger.debug("Unknown state: %r", state)
422
383
follow_name_owner_changes=True),
423
384
avahi.DBUS_INTERFACE_SERVER)
424
385
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
386
self.server_state_changed)
426
387
self.server_state_changed(self.server.GetState())
427
388
428
389
429
390
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
391
def rename(self):
431
392
"""Add the new name to the syslog messages"""
432
ret = AvahiService.rename(self, *args, **kwargs)
433
syslogger.setFormatter(logging.Formatter(
434
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
435
.format(self.name)))
393
ret = AvahiService.rename(self)
394
syslogger.setFormatter(logging.Formatter
395
('Mandos ({0}) [%(process)d]:'
396
' %(levelname)s: %(message)s'
397
.format(self.name)))
436
398
return ret
437
399
438
def call_pipe(connection, # : multiprocessing.Connection
439
func, *args, **kwargs):
440
"""This function is meant to be called by multiprocessing.Process
441
442
This function runs func(*args, **kwargs), and writes the resulting
443
return value on the provided multiprocessing.Connection.
444
"""
445
connection.send(func(*args, **kwargs))
446
connection.close()
400
401
def timedelta_to_milliseconds(td):
402
"Convert a datetime.timedelta() to milliseconds"
403
return ((td.days * 24 * 60 * 60 * 1000)
404
+ (td.seconds * 1000)
405
+ (td.microseconds // 1000))
406
447
407
448
408
class Client(object):
449
409
"""A representation of a client host served by this server.
476
436
last_checker_status: integer between 0 and 255 reflecting exit
477
437
status of last checker. -1 reflects crashed
478
438
checker, -2 means no checker completed yet.
479
last_checker_signal: The signal which killed the last checker, if
480
last_checker_status is -1
481
439
last_enabled: datetime.datetime(); (UTC) or None
482
440
name: string; from the config file, used in log messages and
483
441
D-Bus identifiers
496
454
"fingerprint", "host", "interval",
497
455
"last_approval_request", "last_checked_ok",
498
456
"last_enabled", "name", "timeout")
499
client_defaults = {
500
"timeout": "PT5M",
501
"extended_timeout": "PT15M",
502
"interval": "PT2M",
503
"checker": "fping -q -- %%(host)s",
504
"host": "",
505
"approval_delay": "PT0S",
506
"approval_duration": "PT1S",
507
"approved_by_default": "True",
508
"enabled": "True",
509
}
457
client_defaults = { "timeout": "PT5M",
458
"extended_timeout": "PT15M",
459
"interval": "PT2M",
460
"checker": "fping -q -- %%(host)s",
461
"host": "",
462
"approval_delay": "PT0S",
463
"approval_duration": "PT1S",
464
"approved_by_default": "True",
465
"enabled": "True",
466
}
467
468
def timeout_milliseconds(self):
469
"Return the 'timeout' attribute in milliseconds"
470
return timedelta_to_milliseconds(self.timeout)
471
472
def extended_timeout_milliseconds(self):
473
"Return the 'extended_timeout' attribute in milliseconds"
474
return timedelta_to_milliseconds(self.extended_timeout)
475
476
def interval_milliseconds(self):
477
"Return the 'interval' attribute in milliseconds"
478
return timedelta_to_milliseconds(self.interval)
479
480
def approval_delay_milliseconds(self):
481
return timedelta_to_milliseconds(self.approval_delay)
510
482
511
483
@staticmethod
512
484
def config_parser(config):
528
500
client["enabled"] = config.getboolean(client_name,
529
501
"enabled")
530
502
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
503
client["fingerprint"] = (section["fingerprint"].upper()
535
504
.replace(" ", ""))
536
505
if "secret" in section:
541
510
"rb") as secfile:
542
511
client["secret"] = secfile.read()
543
512
else:
544
raise TypeError("No secret or secfile for section {}"
513
raise TypeError("No secret or secfile for section {0}"
545
514
.format(section))
546
515
client["timeout"] = string_to_delta(section["timeout"])
547
516
client["extended_timeout"] = string_to_delta(
564
533
server_settings = {}
565
534
self.server_settings = server_settings
566
535
# adding all client settings
567
for setting, value in settings.items():
536
for setting, value in settings.iteritems():
568
537
setattr(self, setting, value)
569
538
570
539
if self.enabled:
578
547
self.expires = None
579
548
580
549
logger.debug("Creating client %r", self.name)
550
# Uppercase and remove spaces from fingerprint for later
551
# comparison purposes with return value from the fingerprint()
552
# function
581
553
logger.debug(" Fingerprint: %s", self.fingerprint)
582
554
self.created = settings.get("created",
583
555
datetime.datetime.utcnow())
590
562
self.current_checker_command = None
591
563
self.approved = None
592
564
self.approvals_pending = 0
593
self.changedstate = multiprocessing_manager.Condition(
594
multiprocessing_manager.Lock())
595
self.client_structure = [attr
596
for attr in self.__dict__.iterkeys()
565
self.changedstate = (multiprocessing_manager
566
.Condition(multiprocessing_manager
567
.Lock()))
568
self.client_structure = [attr for attr in
569
self.__dict__.iterkeys()
597
570
if not attr.startswith("_")]
598
571
self.client_structure.append("client_structure")
599
572
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
573
for name, t in inspect.getmembers(type(self),
574
lambda obj:
575
isinstance(obj,
576
property)):
602
577
if not name.startswith("_"):
603
578
self.client_structure.append(name)
604
579
646
621
# and every interval from then on.
647
622
if self.checker_initiator_tag is not None:
648
623
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
651
self.start_checker)
624
self.checker_initiator_tag = (gobject.timeout_add
625
(self.interval_milliseconds(),
626
self.start_checker))
652
627
# Schedule a disable() when 'timeout' has passed
653
628
if self.disable_initiator_tag is not None:
654
629
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
630
self.disable_initiator_tag = (gobject.timeout_add
631
(self.timeout_milliseconds(),
632
self.disable))
657
633
# Also start a new checker *right now*.
658
634
self.start_checker()
659
635
660
def checker_callback(self, source, condition, connection,
661
command):
636
def checker_callback(self, pid, condition, command):
662
637
"""The checker has completed, so take appropriate actions."""
663
638
self.checker_callback_tag = None
664
639
self.checker = None
665
# Read return code from connection (see call_pipe)
666
returncode = connection.recv()
667
connection.close()
668
669
if returncode >= 0:
670
self.last_checker_status = returncode
671
self.last_checker_signal = None
640
if os.WIFEXITED(condition):
641
self.last_checker_status = os.WEXITSTATUS(condition)
672
642
if self.last_checker_status == 0:
673
643
logger.info("Checker for %(name)s succeeded",
674
644
vars(self))
675
645
self.checked_ok()
676
646
else:
677
logger.info("Checker for %(name)s failed", vars(self))
647
logger.info("Checker for %(name)s failed",
648
vars(self))
678
649
else:
679
650
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
651
logger.warning("Checker for %(name)s crashed?",
682
652
vars(self))
683
return False
684
653
685
654
def checked_ok(self):
686
655
"""Assert that the client has been seen, alive and well."""
687
656
self.last_checked_ok = datetime.datetime.utcnow()
688
657
self.last_checker_status = 0
689
self.last_checker_signal = None
690
658
self.bump_timeout()
691
659
692
660
def bump_timeout(self, timeout=None):
697
665
gobject.source_remove(self.disable_initiator_tag)
698
666
self.disable_initiator_tag = None
699
667
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
702
671
self.expires = datetime.datetime.utcnow() + timeout
703
672
704
673
def need_approval(self):
718
687
# than 'timeout' for the client to be disabled, which is as it
719
688
# should be.
720
689
721
if self.checker is not None and not self.checker.is_alive():
722
logger.warning("Checker was not alive; joining")
723
self.checker.join()
724
self.checker = None
690
# If a checker exists, make sure it is not a zombie
691
try:
692
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
693
except AttributeError:
694
pass
695
except OSError as error:
696
if error.errno != errno.ECHILD:
697
raise
698
else:
699
if pid:
700
logger.warning("Checker was a zombie")
701
gobject.source_remove(self.checker_callback_tag)
702
self.checker_callback(pid, status,
703
self.current_checker_command)
725
704
# Start a new checker if needed
726
705
if self.checker is None:
727
706
# Escape attributes for the shell
728
escaped_attrs = {
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
707
escaped_attrs = dict(
708
(attr, re.escape(unicode(getattr(self, attr))))
709
for attr in
710
self.runtime_expansions)
731
711
try:
732
712
command = self.checker_command % escaped_attrs
733
713
except TypeError as error:
734
714
logger.error('Could not format string "%s"',
735
self.checker_command,
715
self.checker_command, exc_info=error)
716
return True # Try again later
717
self.current_checker_command = command
718
try:
719
logger.info("Starting checker %r for %s",
720
command, self.name)
721
# We don't need to redirect stdout and stderr, since
722
# in normal mode, that is already done by daemon(),
723
# and in debug mode we don't want to. (Stdin is
724
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
727
# created wnull.
728
popen_args = {}
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
732
"stderr": wnull })
733
self.checker = subprocess.Popen(command,
734
close_fds=True,
735
shell=True, cwd="/",
736
**popen_args)
737
except OSError as error:
738
logger.error("Failed to start subprocess",
736
739
exc_info=error)
737
return True # Try again later
738
self.current_checker_command = command
739
logger.info("Starting checker %r for %s", command,
740
self.name)
741
# We don't need to redirect stdout and stderr, since
742
# in normal mode, that is already done by daemon(),
743
# and in debug mode we don't want to. (Stdin is
744
# always replaced by /dev/null.)
745
# The exception is when not debugging but nevertheless
746
# running in the foreground; use the previously
747
# created wnull.
748
popen_args = { "close_fds": True,
749
"shell": True,
750
"cwd": "/" }
751
if (not self.server_settings["debug"]
752
and self.server_settings["foreground"]):
753
popen_args.update({"stdout": wnull,
754
"stderr": wnull })
755
pipe = multiprocessing.Pipe(duplex = False)
756
self.checker = multiprocessing.Process(
757
target = call_pipe,
758
args = (pipe[1], subprocess.call, command),
759
kwargs = popen_args)
760
self.checker.start()
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
763
self.checker_callback, pipe[0], command)
740
return True
741
self.checker_callback_tag = (gobject.child_watch_add
742
(self.checker.pid,
743
self.checker_callback,
744
data=command))
745
# The checker may have completed before the gobject
746
# watch was added. Check for this.
747
try:
748
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
749
except OSError as error:
750
if error.errno == errno.ECHILD:
751
# This should never happen
752
logger.error("Child process vanished",
753
exc_info=error)
754
return True
755
raise
756
if pid:
757
gobject.source_remove(self.checker_callback_tag)
758
self.checker_callback(pid, status, command)
764
759
# Re-run this periodically if run by gobject.timeout_add
765
760
return True
766
761
772
767
if getattr(self, "checker", None) is None:
773
768
return
774
769
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
770
try:
771
self.checker.terminate()
772
#time.sleep(0.5)
773
#if self.checker.poll() is None:
774
# self.checker.kill()
775
except OSError as error:
776
if error.errno != errno.ESRCH: # No such process
777
raise
776
778
self.checker = None
777
779
778
780
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
781
def dbus_service_property(dbus_interface, signature="v",
782
access="readwrite", byte_arrays=False):
783
783
"""Decorators for marking methods of a DBusObjectWithProperties to
784
784
become properties on the D-Bus.
785
785
794
794
# "Set" method, so we fail early here:
795
795
if byte_arrays and signature != "ay":
796
796
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
797
" signature {0!r}".format(signature))
799
798
def decorator(func):
800
799
func._dbus_is_property = True
801
800
func._dbus_interface = dbus_interface
806
805
func._dbus_name = func._dbus_name[:-14]
807
806
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
807
return func
809
810
808
return decorator
811
809
812
810
821
819
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
820
"false"}
823
821
"""
824
825
822
def decorator(func):
826
823
func._dbus_is_interface = True
827
824
func._dbus_interface = dbus_interface
828
825
func._dbus_name = dbus_interface
829
826
return func
830
831
827
return decorator
832
828
833
829
835
831
"""Decorator to annotate D-Bus methods, signals or properties
836
832
Usage:
837
833
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
834
@dbus_service_property("org.example.Interface", signature="b",
842
835
access="r")
836
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
837
"org.freedesktop.DBus.Property."
838
"EmitsChangedSignal": "false"})
843
839
def Property_dbus_property(self):
844
840
return dbus.Boolean(False)
845
846
See also the DBusObjectWithAnnotations class.
847
841
"""
848
849
842
def decorator(func):
850
843
func._dbus_annotations = annotations
851
844
return func
852
853
845
return decorator
854
846
855
847
856
848
class DBusPropertyException(dbus.exceptions.DBusException):
857
849
"""A base class for D-Bus property-related exceptions
858
850
"""
859
pass
851
def __unicode__(self):
852
return unicode(str(self))
860
853
861
854
862
855
class DBusPropertyAccessException(DBusPropertyException):
871
864
pass
872
865
873
866
874
class DBusObjectWithAnnotations(dbus.service.Object):
875
"""A D-Bus object with annotations.
867
class DBusObjectWithProperties(dbus.service.Object):
868
"""A D-Bus object with properties.
876
869
877
Classes inheriting from this can use the dbus_annotations
878
decorator to add annotations to methods or signals.
870
Classes inheriting from this can use the dbus_service_property
871
decorator to expose methods as D-Bus properties. It exposes the
872
standard Get(), Set(), and GetAll() methods on the D-Bus.
879
873
"""
880
874
881
875
@staticmethod
885
879
If called like _is_dbus_thing("method") it returns a function
886
880
suitable for use as predicate to inspect.getmembers().
887
881
"""
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
882
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
889
883
False)
890
884
891
885
def _get_all_dbus_things(self, thing):
892
886
"""Returns a generator of (name, attribute) pairs
893
887
"""
894
return ((getattr(athing.__get__(self), "_dbus_name", name),
888
return ((getattr(athing.__get__(self), "_dbus_name",
889
name),
895
890
athing.__get__(self))
896
891
for cls in self.__class__.__mro__
897
892
for name, athing in
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
899
900
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
901
out_signature = "s",
902
path_keyword = 'object_path',
903
connection_keyword = 'connection')
904
def Introspect(self, object_path, connection):
905
"""Overloading of standard D-Bus method.
906
907
Inserts annotation tags on methods and signals.
908
"""
909
xmlstring = dbus.service.Object.Introspect(self, object_path,
910
connection)
911
try:
912
document = xml.dom.minidom.parseString(xmlstring)
913
914
for if_tag in document.getElementsByTagName("interface"):
915
# Add annotation tags
916
for typ in ("method", "signal"):
917
for tag in if_tag.getElementsByTagName(typ):
918
annots = dict()
919
for name, prop in (self.
920
_get_all_dbus_things(typ)):
921
if (name == tag.getAttribute("name")
922
and prop._dbus_interface
923
== if_tag.getAttribute("name")):
924
annots.update(getattr(
925
prop, "_dbus_annotations", {}))
926
for name, value in annots.items():
927
ann_tag = document.createElement(
928
"annotation")
929
ann_tag.setAttribute("name", name)
930
ann_tag.setAttribute("value", value)
931
tag.appendChild(ann_tag)
932
# Add interface annotation tags
933
for annotation, value in dict(
934
itertools.chain.from_iterable(
935
annotations().items()
936
for name, annotations
937
in self._get_all_dbus_things("interface")
938
if name == if_tag.getAttribute("name")
939
)).items():
940
ann_tag = document.createElement("annotation")
941
ann_tag.setAttribute("name", annotation)
942
ann_tag.setAttribute("value", value)
943
if_tag.appendChild(ann_tag)
944
# Fix argument name for the Introspect method itself
945
if (if_tag.getAttribute("name")
946
== dbus.INTROSPECTABLE_IFACE):
947
for cn in if_tag.getElementsByTagName("method"):
948
if cn.getAttribute("name") == "Introspect":
949
for arg in cn.getElementsByTagName("arg"):
950
if (arg.getAttribute("direction")
951
== "out"):
952
arg.setAttribute("name",
953
"xml_data")
954
xmlstring = document.toxml("utf-8")
955
document.unlink()
956
except (AttributeError, xml.dom.DOMException,
957
xml.parsers.expat.ExpatError) as error:
958
logger.error("Failed to override Introspection method",
959
exc_info=error)
960
return xmlstring
961
962
963
class DBusObjectWithProperties(DBusObjectWithAnnotations):
964
"""A D-Bus object with properties.
965
966
Classes inheriting from this can use the dbus_service_property
967
decorator to expose methods as D-Bus properties. It exposes the
968
standard Get(), Set(), and GetAll() methods on the D-Bus.
969
"""
893
inspect.getmembers(cls,
894
self._is_dbus_thing(thing)))
970
895
971
896
def _get_dbus_property(self, interface_name, property_name):
972
897
"""Returns a bound method if one exists which is a D-Bus
973
898
property with the specified name and interface.
974
899
"""
975
for cls in self.__class__.__mro__:
976
for name, value in inspect.getmembers(
977
cls, self._is_dbus_thing("property")):
900
for cls in self.__class__.__mro__:
901
for name, value in (inspect.getmembers
902
(cls,
903
self._is_dbus_thing("property"))):
978
904
if (value._dbus_name == property_name
979
905
and value._dbus_interface == interface_name):
980
906
return value.__get__(self)
981
907
982
908
# No such property
983
raise DBusPropertyNotFound("{}:{}.{}".format(
984
self.dbus_object_path, interface_name, property_name))
985
986
@classmethod
987
def _get_all_interface_names(cls):
988
"""Get a sequence of all interfaces supported by an object"""
989
return (name for name in set(getattr(getattr(x, attr),
990
"_dbus_interface", None)
991
for x in (inspect.getmro(cls))
992
for attr in dir(x))
993
if name is not None)
994
995
@dbus.service.method(dbus.PROPERTIES_IFACE,
996
in_signature="ss",
909
raise DBusPropertyNotFound(self.dbus_object_path + ":"
910
+ interface_name + "."
911
+ property_name)
912
913
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
997
914
out_signature="v")
998
915
def Get(self, interface_name, property_name):
999
916
"""Standard D-Bus property Get() method, see D-Bus standard.
1017
934
# The byte_arrays option is not supported yet on
1018
935
# signatures other than "ay".
1019
936
if prop._dbus_signature != "ay":
1020
raise ValueError("Byte arrays not supported for non-"
1021
"'ay' signature {!r}"
1022
.format(prop._dbus_signature))
937
raise ValueError
1023
938
value = dbus.ByteArray(b''.join(chr(byte)
1024
939
for byte in value))
1025
940
prop(value)
1026
941
1027
@dbus.service.method(dbus.PROPERTIES_IFACE,
1028
in_signature="s",
942
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1029
943
out_signature="a{sv}")
1030
944
def GetAll(self, interface_name):
1031
945
"""Standard D-Bus property GetAll() method, see D-Bus
1046
960
if not hasattr(value, "variant_level"):
1047
961
properties[name] = value
1048
962
continue
1049
properties[name] = type(value)(
1050
value, variant_level = value.variant_level + 1)
963
properties[name] = type(value)(value, variant_level=
964
value.variant_level+1)
1051
965
return dbus.Dictionary(properties, signature="sv")
1052
966
1053
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1054
def PropertiesChanged(self, interface_name, changed_properties,
1055
invalidated_properties):
1056
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1057
standard.
1058
"""
1059
pass
1060
1061
967
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1062
968
out_signature="s",
1063
969
path_keyword='object_path',
1067
973
1068
974
Inserts property tags and interface annotation tags.
1069
975
"""
1070
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1071
object_path,
1072
connection)
976
xmlstring = dbus.service.Object.Introspect(self, object_path,
977
connection)
1073
978
try:
1074
979
document = xml.dom.minidom.parseString(xmlstring)
1075
1076
980
def make_tag(document, name, prop):
1077
981
e = document.createElement("property")
1078
982
e.setAttribute("name", name)
1079
983
e.setAttribute("type", prop._dbus_signature)
1080
984
e.setAttribute("access", prop._dbus_access)
1081
985
return e
1082
1083
986
for if_tag in document.getElementsByTagName("interface"):
1084
987
# Add property tags
1085
988
for tag in (make_tag(document, name, prop)
1088
991
if prop._dbus_interface
1089
992
== if_tag.getAttribute("name")):
1090
993
if_tag.appendChild(tag)
1091
# Add annotation tags for properties
1092
for tag in if_tag.getElementsByTagName("property"):
1093
annots = dict()
1094
for name, prop in self._get_all_dbus_things(
1095
"property"):
1096
if (name == tag.getAttribute("name")
1097
and prop._dbus_interface
1098
== if_tag.getAttribute("name")):
1099
annots.update(getattr(
1100
prop, "_dbus_annotations", {}))
1101
for name, value in annots.items():
1102
ann_tag = document.createElement(
1103
"annotation")
1104
ann_tag.setAttribute("name", name)
1105
ann_tag.setAttribute("value", value)
1106
tag.appendChild(ann_tag)
994
# Add annotation tags
995
for typ in ("method", "signal", "property"):
996
for tag in if_tag.getElementsByTagName(typ):
997
annots = dict()
998
for name, prop in (self.
999
_get_all_dbus_things(typ)):
1000
if (name == tag.getAttribute("name")
1001
and prop._dbus_interface
1002
== if_tag.getAttribute("name")):
1003
annots.update(getattr
1004
(prop,
1005
"_dbus_annotations",
1006
{}))
1007
for name, value in annots.iteritems():
1008
ann_tag = document.createElement(
1009
"annotation")
1010
ann_tag.setAttribute("name", name)
1011
ann_tag.setAttribute("value", value)
1012
tag.appendChild(ann_tag)
1013
# Add interface annotation tags
1014
for annotation, value in dict(
1015
itertools.chain.from_iterable(
1016
annotations().iteritems()
1017
for name, annotations in
1018
self._get_all_dbus_things("interface")
1019
if name == if_tag.getAttribute("name")
1020
)).iteritems():
1021
ann_tag = document.createElement("annotation")
1022
ann_tag.setAttribute("name", annotation)
1023
ann_tag.setAttribute("value", value)
1024
if_tag.appendChild(ann_tag)
1107
1025
# Add the names to the return values for the
1108
1026
# "org.freedesktop.DBus.Properties" methods
1109
1027
if (if_tag.getAttribute("name")
1127
1045
exc_info=error)
1128
1046
return xmlstring
1129
1047
1130
try:
1131
dbus.OBJECT_MANAGER_IFACE
1132
except AttributeError:
1133
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1134
1135
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1136
"""A D-Bus object with an ObjectManager.
1137
1138
Classes inheriting from this exposes the standard
1139
GetManagedObjects call and the InterfacesAdded and
1140
InterfacesRemoved signals on the standard
1141
"org.freedesktop.DBus.ObjectManager" interface.
1142
1143
Note: No signals are sent automatically; they must be sent
1144
manually.
1145
"""
1146
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1147
out_signature = "a{oa{sa{sv}}}")
1148
def GetManagedObjects(self):
1149
"""This function must be overridden"""
1150
raise NotImplementedError()
1151
1152
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1153
signature = "oa{sa{sv}}")
1154
def InterfacesAdded(self, object_path, interfaces_and_properties):
1155
pass
1156
1157
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1158
def InterfacesRemoved(self, object_path, interfaces):
1159
pass
1160
1161
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1162
out_signature = "s",
1163
path_keyword = 'object_path',
1164
connection_keyword = 'connection')
1165
def Introspect(self, object_path, connection):
1166
"""Overloading of standard D-Bus method.
1167
1168
Override return argument name of GetManagedObjects to be
1169
"objpath_interfaces_and_properties"
1170
"""
1171
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1172
object_path,
1173
connection)
1174
try:
1175
document = xml.dom.minidom.parseString(xmlstring)
1176
1177
for if_tag in document.getElementsByTagName("interface"):
1178
# Fix argument name for the GetManagedObjects method
1179
if (if_tag.getAttribute("name")
1180
== dbus.OBJECT_MANAGER_IFACE):
1181
for cn in if_tag.getElementsByTagName("method"):
1182
if (cn.getAttribute("name")
1183
== "GetManagedObjects"):
1184
for arg in cn.getElementsByTagName("arg"):
1185
if (arg.getAttribute("direction")
1186
== "out"):
1187
arg.setAttribute(
1188
"name",
1189
"objpath_interfaces"
1190
"_and_properties")
1191
xmlstring = document.toxml("utf-8")
1192
document.unlink()
1193
except (AttributeError, xml.dom.DOMException,
1194
xml.parsers.expat.ExpatError) as error:
1195
logger.error("Failed to override Introspection method",
1196
exc_info = error)
1197
return xmlstring
1198
1048
1199
1049
def datetime_to_dbus(dt, variant_level=0):
1200
1050
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1201
1051
if dt is None:
1202
1052
return dbus.String("", variant_level = variant_level)
1203
return dbus.String(dt.isoformat(), variant_level=variant_level)
1053
return dbus.String(dt.isoformat(),
1054
variant_level=variant_level)
1204
1055
1205
1056
1206
1057
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1226
1077
(from DBusObjectWithProperties) and interfaces (from the
1227
1078
dbus_interface_annotations decorator).
1228
1079
"""
1229
1230
1080
def wrapper(cls):
1231
1081
for orig_interface_name, alt_interface_name in (
1232
alt_interface_names.items()):
1082
alt_interface_names.iteritems()):
1233
1083
attr = {}
1234
1084
interface_names = set()
1235
1085
# Go though all attributes of the class
1237
1087
# Ignore non-D-Bus attributes, and D-Bus attributes
1238
1088
# with the wrong interface name
1239
1089
if (not hasattr(attribute, "_dbus_interface")
1240
or not attribute._dbus_interface.startswith(
1241
orig_interface_name)):
1090
or not attribute._dbus_interface
1091
.startswith(orig_interface_name)):
1242
1092
continue
1243
1093
# Create an alternate D-Bus interface name based on
1244
1094
# the current name
1245
alt_interface = attribute._dbus_interface.replace(
1246
orig_interface_name, alt_interface_name)
1095
alt_interface = (attribute._dbus_interface
1096
.replace(orig_interface_name,
1097
alt_interface_name))
1247
1098
interface_names.add(alt_interface)
1248
1099
# Is this a D-Bus signal?
1249
1100
if getattr(attribute, "_dbus_is_signal", False):
1250
if sys.version_info.major == 2:
1251
# Extract the original non-method undecorated
1252
# function by black magic
1253
nonmethod_func = (dict(
1101
# Extract the original non-method undecorated
1102
# function by black magic
1103
nonmethod_func = (dict(
1254
1104
zip(attribute.func_code.co_freevars,
1255
attribute.__closure__))
1256
["func"].cell_contents)
1257
else:
1258
nonmethod_func = attribute
1105
attribute.__closure__))["func"]
1106
.cell_contents)
1259
1107
# Create a new, but exactly alike, function
1260
1108
# object, and decorate it to be a new D-Bus signal
1261
1109
# with the alternate D-Bus interface name
1262
if sys.version_info.major == 2:
1263
new_function = types.FunctionType(
1264
nonmethod_func.func_code,
1265
nonmethod_func.func_globals,
1266
nonmethod_func.func_name,
1267
nonmethod_func.func_defaults,
1268
nonmethod_func.func_closure)
1269
else:
1270
new_function = types.FunctionType(
1271
nonmethod_func.__code__,
1272
nonmethod_func.__globals__,
1273
nonmethod_func.__name__,
1274
nonmethod_func.__defaults__,
1275
nonmethod_func.__closure__)
1276
new_function = (dbus.service.signal(
1277
alt_interface,
1278
attribute._dbus_signature)(new_function))
1110
new_function = (dbus.service.signal
1111
(alt_interface,
1112
attribute._dbus_signature)
1113
(types.FunctionType(
1114
nonmethod_func.func_code,
1115
nonmethod_func.func_globals,
1116
nonmethod_func.func_name,
1117
nonmethod_func.func_defaults,
1118
nonmethod_func.func_closure)))
1279
1119
# Copy annotations, if any
1280
1120
try:
1281
new_function._dbus_annotations = dict(
1282
attribute._dbus_annotations)
1121
new_function._dbus_annotations = (
1122
dict(attribute._dbus_annotations))
1283
1123
except AttributeError:
1284
1124
pass
1285
1125
# Define a creator of a function to call both the
1290
1130
"""This function is a scope container to pass
1291
1131
func1 and func2 to the "call_both" function
1292
1132
outside of its arguments"""
1293
1294
@functools.wraps(func2)
1295
1133
def call_both(*args, **kwargs):
1296
1134
"""This function will emit two D-Bus
1297
1135
signals by calling func1 and func2"""
1298
1136
func1(*args, **kwargs)
1299
1137
func2(*args, **kwargs)
1300
# Make wrapper function look like a D-Bus signal
1301
for name, attr in inspect.getmembers(func2):
1302
if name.startswith("_dbus_"):
1303
setattr(call_both, name, attr)
1304
1305
1138
return call_both
1306
1139
# Create the "call_both" function and add it to
1307
1140
# the class
1312
1145
# object. Decorate it to be a new D-Bus method
1313
1146
# with the alternate D-Bus interface name. Add it
1314
1147
# to the class.
1315
attr[attrname] = (
1316
dbus.service.method(
1317
alt_interface,
1318
attribute._dbus_in_signature,
1319
attribute._dbus_out_signature)
1320
(types.FunctionType(attribute.func_code,
1321
attribute.func_globals,
1322
attribute.func_name,
1323
attribute.func_defaults,
1324
attribute.func_closure)))
1148
attr[attrname] = (dbus.service.method
1149
(alt_interface,
1150
attribute._dbus_in_signature,
1151
attribute._dbus_out_signature)
1152
(types.FunctionType
1153
(attribute.func_code,
1154
attribute.func_globals,
1155
attribute.func_name,
1156
attribute.func_defaults,
1157
attribute.func_closure)))
1325
1158
# Copy annotations, if any
1326
1159
try:
1327
attr[attrname]._dbus_annotations = dict(
1328
attribute._dbus_annotations)
1160
attr[attrname]._dbus_annotations = (
1161
dict(attribute._dbus_annotations))
1329
1162
except AttributeError:
1330
1163
pass
1331
1164
# Is this a D-Bus property?
1334
1167
# object, and decorate it to be a new D-Bus
1335
1168
# property with the alternate D-Bus interface
1336
1169
# name. Add it to the class.
1337
attr[attrname] = (dbus_service_property(
1338
alt_interface, attribute._dbus_signature,
1339
attribute._dbus_access,
1340
attribute._dbus_get_args_options
1341
["byte_arrays"])
1342
(types.FunctionType(
1343
attribute.func_code,
1344
attribute.func_globals,
1345
attribute.func_name,
1346
attribute.func_defaults,
1347
attribute.func_closure)))
1170
attr[attrname] = (dbus_service_property
1171
(alt_interface,
1172
attribute._dbus_signature,
1173
attribute._dbus_access,
1174
attribute
1175
._dbus_get_args_options
1176
["byte_arrays"])
1177
(types.FunctionType
1178
(attribute.func_code,
1179
attribute.func_globals,
1180
attribute.func_name,
1181
attribute.func_defaults,
1182
attribute.func_closure)))
1348
1183
# Copy annotations, if any
1349
1184
try:
1350
attr[attrname]._dbus_annotations = dict(
1351
attribute._dbus_annotations)
1185
attr[attrname]._dbus_annotations = (
1186
dict(attribute._dbus_annotations))
1352
1187
except AttributeError:
1353
1188
pass
1354
1189
# Is this a D-Bus interface?
1357
1192
# object. Decorate it to be a new D-Bus interface
1358
1193
# with the alternate D-Bus interface name. Add it
1359
1194
# to the class.
1360
attr[attrname] = (
1361
dbus_interface_annotations(alt_interface)
1362
(types.FunctionType(attribute.func_code,
1363
attribute.func_globals,
1364
attribute.func_name,
1365
attribute.func_defaults,
1366
attribute.func_closure)))
1195
attr[attrname] = (dbus_interface_annotations
1196
(alt_interface)
1197
(types.FunctionType
1198
(attribute.func_code,
1199
attribute.func_globals,
1200
attribute.func_name,
1201
attribute.func_defaults,
1202
attribute.func_closure)))
1367
1203
if deprecate:
1368
1204
# Deprecate all alternate interfaces
1369
iname="_AlternateDBusNames_interface_annotation{}"
1205
iname="_AlternateDBusNames_interface_annotation{0}"
1370
1206
for interface_name in interface_names:
1371
1372
1207
@dbus_interface_annotations(interface_name)
1373
1208
def func(self):
1374
1209
return { "org.freedesktop.DBus.Deprecated":
1375
"true" }
1210
"true" }
1376
1211
# Find an unused name
1377
1212
for aname in (iname.format(i)
1378
1213
for i in itertools.count()):
1382
1217
if interface_names:
1383
1218
# Replace the class with a new subclass of it with
1384
1219
# methods, signals, etc. as created above.
1385
cls = type(b"{}Alternate".format(cls.__name__),
1386
(cls, ), attr)
1220
cls = type(b"{0}Alternate".format(cls.__name__),
1221
(cls,), attr)
1387
1222
return cls
1388
1389
1223
return wrapper
1390
1224
1391
1225
1392
1226
@alternate_dbus_interfaces({"se.recompile.Mandos":
1393
"se.bsnet.fukt.Mandos"})
1227
"se.bsnet.fukt.Mandos"})
1394
1228
class ClientDBus(Client, DBusObjectWithProperties):
1395
1229
"""A Client class using D-Bus
1396
1230
1400
1234
"""
1401
1235
1402
1236
runtime_expansions = (Client.runtime_expansions
1403
+ ("dbus_object_path", ))
1404
1405
_interface = "se.recompile.Mandos.Client"
1237
+ ("dbus_object_path",))
1406
1238
1407
1239
# dbus.service.Object doesn't use super(), so we can't either.
1408
1240
1411
1243
Client.__init__(self, *args, **kwargs)
1412
1244
# Only now, when this client is initialized, can it show up on
1413
1245
# the D-Bus
1414
client_object_name = str(self.name).translate(
1246
client_object_name = unicode(self.name).translate(
1415
1247
{ord("."): ord("_"),
1416
1248
ord("-"): ord("_")})
1417
self.dbus_object_path = dbus.ObjectPath(
1418
"/clients/" + client_object_name)
1249
self.dbus_object_path = (dbus.ObjectPath
1250
("/clients/" + client_object_name))
1419
1251
DBusObjectWithProperties.__init__(self, self.bus,
1420
1252
self.dbus_object_path)
1421
1253
1422
def notifychangeproperty(transform_func, dbus_name,
1423
type_func=lambda x: x,
1424
variant_level=1,
1425
invalidate_only=False,
1426
_interface=_interface):
1254
def notifychangeproperty(transform_func,
1255
dbus_name, type_func=lambda x: x,
1256
variant_level=1):
1427
1257
""" Modify a variable so that it's a property which announces
1428
1258
its changes to DBus.
1429
1259
1434
1264
to the D-Bus. Default: no transform
1435
1265
variant_level: D-Bus variant level. Default: 1
1436
1266
"""
1437
attrname = "_{}".format(dbus_name)
1438
1267
attrname = "_{0}".format(dbus_name)
1439
1268
def setter(self, value):
1440
1269
if hasattr(self, "dbus_object_path"):
1441
1270
if (not hasattr(self, attrname) or
1442
1271
type_func(getattr(self, attrname, None))
1443
1272
!= type_func(value)):
1444
if invalidate_only:
1445
self.PropertiesChanged(
1446
_interface, dbus.Dictionary(),
1447
dbus.Array((dbus_name, )))
1448
else:
1449
dbus_value = transform_func(
1450
type_func(value),
1451
variant_level = variant_level)
1452
self.PropertyChanged(dbus.String(dbus_name),
1453
dbus_value)
1454
self.PropertiesChanged(
1455
_interface,
1456
dbus.Dictionary({ dbus.String(dbus_name):
1457
dbus_value }),
1458
dbus.Array())
1273
dbus_value = transform_func(type_func(value),
1274
variant_level
1275
=variant_level)
1276
self.PropertyChanged(dbus.String(dbus_name),
1277
dbus_value)
1459
1278
setattr(self, attrname, value)
1460
1279
1461
1280
return property(lambda self: getattr(self, attrname), setter)
1467
1286
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1468
1287
last_enabled = notifychangeproperty(datetime_to_dbus,
1469
1288
"LastEnabled")
1470
checker = notifychangeproperty(
1471
dbus.Boolean, "CheckerRunning",
1472
type_func = lambda checker: checker is not None)
1289
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1290
type_func = lambda checker:
1291
checker is not None)
1473
1292
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1474
1293
"LastCheckedOK")
1475
1294
last_checker_status = notifychangeproperty(dbus.Int16,
1478
1297
datetime_to_dbus, "LastApprovalRequest")
1479
1298
approved_by_default = notifychangeproperty(dbus.Boolean,
1480
1299
"ApprovedByDefault")
1481
approval_delay = notifychangeproperty(
1482
dbus.UInt64, "ApprovalDelay",
1483
type_func = lambda td: td.total_seconds() * 1000)
1300
approval_delay = notifychangeproperty(dbus.UInt64,
1301
"ApprovalDelay",
1302
type_func =
1303
timedelta_to_milliseconds)
1484
1304
approval_duration = notifychangeproperty(
1485
1305
dbus.UInt64, "ApprovalDuration",
1486
type_func = lambda td: td.total_seconds() * 1000)
1306
type_func = timedelta_to_milliseconds)
1487
1307
host = notifychangeproperty(dbus.String, "Host")
1488
timeout = notifychangeproperty(
1489
dbus.UInt64, "Timeout",
1490
type_func = lambda td: td.total_seconds() * 1000)
1308
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1309
type_func =
1310
timedelta_to_milliseconds)
1491
1311
extended_timeout = notifychangeproperty(
1492
1312
dbus.UInt64, "ExtendedTimeout",
1493
type_func = lambda td: td.total_seconds() * 1000)
1494
interval = notifychangeproperty(
1495
dbus.UInt64, "Interval",
1496
type_func = lambda td: td.total_seconds() * 1000)
1313
type_func = timedelta_to_milliseconds)
1314
interval = notifychangeproperty(dbus.UInt64,
1315
"Interval",
1316
type_func =
1317
timedelta_to_milliseconds)
1497
1318
checker_command = notifychangeproperty(dbus.String, "Checker")
1498
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1499
invalidate_only=True)
1500
1319
1501
1320
del notifychangeproperty
1502
1321
1509
1328
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1510
1329
Client.__del__(self, *args, **kwargs)
1511
1330
1512
def checker_callback(self, source, condition,
1513
connection, command, *args, **kwargs):
1514
ret = Client.checker_callback(self, source, condition,
1515
connection, command, *args,
1516
**kwargs)
1517
exitstatus = self.last_checker_status
1518
if exitstatus >= 0:
1331
def checker_callback(self, pid, condition, command,
1332
*args, **kwargs):
1333
self.checker_callback_tag = None
1334
self.checker = None
1335
if os.WIFEXITED(condition):
1336
exitstatus = os.WEXITSTATUS(condition)
1519
1337
# Emit D-Bus signal
1520
1338
self.CheckerCompleted(dbus.Int16(exitstatus),
1521
# This is specific to GNU libC
1522
dbus.Int64(exitstatus << 8),
1339
dbus.Int64(condition),
1523
1340
dbus.String(command))
1524
1341
else:
1525
1342
# Emit D-Bus signal
1526
1343
self.CheckerCompleted(dbus.Int16(-1),
1527
dbus.Int64(
1528
# This is specific to GNU libC
1529
(exitstatus << 8)
1530
| self.last_checker_signal),
1344
dbus.Int64(condition),
1531
1345
dbus.String(command))
1532
return ret
1346
1347
return Client.checker_callback(self, pid, condition, command,
1348
*args, **kwargs)
1533
1349
1534
1350
def start_checker(self, *args, **kwargs):
1535
old_checker_pid = getattr(self.checker, "pid", None)
1351
old_checker = self.checker
1352
if self.checker is not None:
1353
old_checker_pid = self.checker.pid
1354
else:
1355
old_checker_pid = None
1536
1356
r = Client.start_checker(self, *args, **kwargs)
1537
1357
# Only if new checker process was started
1538
1358
if (self.checker is not None
1547
1367
1548
1368
def approve(self, value=True):
1549
1369
self.approved = value
1550
gobject.timeout_add(int(self.approval_duration.total_seconds()
1551
* 1000), self._reset_approved)
1370
gobject.timeout_add(timedelta_to_milliseconds
1371
(self.approval_duration),
1372
self._reset_approved)
1552
1373
self.send_changedstate()
1553
1374
1554
1375
## D-Bus methods, signals & properties
1376
_interface = "se.recompile.Mandos.Client"
1555
1377
1556
1378
## Interfaces
1557
1379
1380
@dbus_interface_annotations(_interface)
1381
def _foo(self):
1382
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1383
"false"}
1384
1558
1385
## Signals
1559
1386
1560
1387
# CheckerCompleted - signal
1570
1397
pass
1571
1398
1572
1399
# PropertyChanged - signal
1573
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1574
1400
@dbus.service.signal(_interface, signature="sv")
1575
1401
def PropertyChanged(self, property, value):
1576
1402
"D-Bus signal"
1610
1436
self.checked_ok()
1611
1437
1612
1438
# Enable - method
1613
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1614
1439
@dbus.service.method(_interface)
1615
1440
def Enable(self):
1616
1441
"D-Bus method"
1617
1442
self.enable()
1618
1443
1619
1444
# StartChecker - method
1620
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1621
1445
@dbus.service.method(_interface)
1622
1446
def StartChecker(self):
1623
1447
"D-Bus method"
1624
1448
self.start_checker()
1625
1449
1626
1450
# Disable - method
1627
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1628
1451
@dbus.service.method(_interface)
1629
1452
def Disable(self):
1630
1453
"D-Bus method"
1631
1454
self.disable()
1632
1455
1633
1456
# StopChecker - method
1634
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1635
1457
@dbus.service.method(_interface)
1636
1458
def StopChecker(self):
1637
1459
self.stop_checker()
1644
1466
return dbus.Boolean(bool(self.approvals_pending))
1645
1467
1646
1468
# ApprovedByDefault - property
1647
@dbus_service_property(_interface,
1648
signature="b",
1469
@dbus_service_property(_interface, signature="b",
1649
1470
access="readwrite")
1650
1471
def ApprovedByDefault_dbus_property(self, value=None):
1651
1472
if value is None: # get
1653
1474
self.approved_by_default = bool(value)
1654
1475
1655
1476
# ApprovalDelay - property
1656
@dbus_service_property(_interface,
1657
signature="t",
1477
@dbus_service_property(_interface, signature="t",
1658
1478
access="readwrite")
1659
1479
def ApprovalDelay_dbus_property(self, value=None):
1660
1480
if value is None: # get
1661
return dbus.UInt64(self.approval_delay.total_seconds()
1662
* 1000)
1481
return dbus.UInt64(self.approval_delay_milliseconds())
1663
1482
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1664
1483
1665
1484
# ApprovalDuration - property
1666
@dbus_service_property(_interface,
1667
signature="t",
1485
@dbus_service_property(_interface, signature="t",
1668
1486
access="readwrite")
1669
1487
def ApprovalDuration_dbus_property(self, value=None):
1670
1488
if value is None: # get
1671
return dbus.UInt64(self.approval_duration.total_seconds()
1672
* 1000)
1489
return dbus.UInt64(timedelta_to_milliseconds(
1490
self.approval_duration))
1673
1491
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1674
1492
1675
1493
# Name - property
1676
@dbus_annotations(
1677
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1678
1494
@dbus_service_property(_interface, signature="s", access="read")
1679
1495
def Name_dbus_property(self):
1680
1496
return dbus.String(self.name)
1681
1497
1682
1498
# Fingerprint - property
1683
@dbus_annotations(
1684
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1685
1499
@dbus_service_property(_interface, signature="s", access="read")
1686
1500
def Fingerprint_dbus_property(self):
1687
1501
return dbus.String(self.fingerprint)
1688
1502
1689
1503
# Host - property
1690
@dbus_service_property(_interface,
1691
signature="s",
1504
@dbus_service_property(_interface, signature="s",
1692
1505
access="readwrite")
1693
1506
def Host_dbus_property(self, value=None):
1694
1507
if value is None: # get
1695
1508
return dbus.String(self.host)
1696
self.host = str(value)
1509
self.host = unicode(value)
1697
1510
1698
1511
# Created - property
1699
@dbus_annotations(
1700
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1701
1512
@dbus_service_property(_interface, signature="s", access="read")
1702
1513
def Created_dbus_property(self):
1703
1514
return datetime_to_dbus(self.created)
1708
1519
return datetime_to_dbus(self.last_enabled)
1709
1520
1710
1521
# Enabled - property
1711
@dbus_service_property(_interface,
1712
signature="b",
1522
@dbus_service_property(_interface, signature="b",
1713
1523
access="readwrite")
1714
1524
def Enabled_dbus_property(self, value=None):
1715
1525
if value is None: # get
1720
1530
self.disable()
1721
1531
1722
1532
# LastCheckedOK - property
1723
@dbus_service_property(_interface,
1724
signature="s",
1533
@dbus_service_property(_interface, signature="s",
1725
1534
access="readwrite")
1726
1535
def LastCheckedOK_dbus_property(self, value=None):
1727
1536
if value is not None:
1730
1539
return datetime_to_dbus(self.last_checked_ok)
1731
1540
1732
1541
# LastCheckerStatus - property
1733
@dbus_service_property(_interface, signature="n", access="read")
1542
@dbus_service_property(_interface, signature="n",
1543
access="read")
1734
1544
def LastCheckerStatus_dbus_property(self):
1735
1545
return dbus.Int16(self.last_checker_status)
1736
1546
1745
1555
return datetime_to_dbus(self.last_approval_request)
1746
1556
1747
1557
# Timeout - property
1748
@dbus_service_property(_interface,
1749
signature="t",
1558
@dbus_service_property(_interface, signature="t",
1750
1559
access="readwrite")
1751
1560
def Timeout_dbus_property(self, value=None):
1752
1561
if value is None: # get
1753
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1562
return dbus.UInt64(self.timeout_milliseconds())
1754
1563
old_timeout = self.timeout
1755
1564
self.timeout = datetime.timedelta(0, 0, 0, value)
1756
1565
# Reschedule disabling
1765
1574
is None):
1766
1575
return
1767
1576
gobject.source_remove(self.disable_initiator_tag)
1768
self.disable_initiator_tag = gobject.timeout_add(
1769
int((self.expires - now).total_seconds() * 1000),
1770
self.disable)
1577
self.disable_initiator_tag = (
1578
gobject.timeout_add(
1579
timedelta_to_milliseconds(self.expires - now),
1580
self.disable))
1771
1581
1772
1582
# ExtendedTimeout - property
1773
@dbus_service_property(_interface,
1774
signature="t",
1583
@dbus_service_property(_interface, signature="t",
1775
1584
access="readwrite")
1776
1585
def ExtendedTimeout_dbus_property(self, value=None):
1777
1586
if value is None: # get
1778
return dbus.UInt64(self.extended_timeout.total_seconds()
1779
* 1000)
1587
return dbus.UInt64(self.extended_timeout_milliseconds())
1780
1588
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1781
1589
1782
1590
# Interval - property
1783
@dbus_service_property(_interface,
1784
signature="t",
1591
@dbus_service_property(_interface, signature="t",
1785
1592
access="readwrite")
1786
1593
def Interval_dbus_property(self, value=None):
1787
1594
if value is None: # get
1788
return dbus.UInt64(self.interval.total_seconds() * 1000)
1595
return dbus.UInt64(self.interval_milliseconds())
1789
1596
self.interval = datetime.timedelta(0, 0, 0, value)
1790
1597
if getattr(self, "checker_initiator_tag", None) is None:
1791
1598
return
1792
1599
if self.enabled:
1793
1600
# Reschedule checker run
1794
1601
gobject.source_remove(self.checker_initiator_tag)
1795
self.checker_initiator_tag = gobject.timeout_add(
1796
value, self.start_checker)
1797
self.start_checker() # Start one now, too
1602
self.checker_initiator_tag = (gobject.timeout_add
1603
(value, self.start_checker))
1604
self.start_checker() # Start one now, too
1798
1605
1799
1606
# Checker - property
1800
@dbus_service_property(_interface,
1801
signature="s",
1607
@dbus_service_property(_interface, signature="s",
1802
1608
access="readwrite")
1803
1609
def Checker_dbus_property(self, value=None):
1804
1610
if value is None: # get
1805
1611
return dbus.String(self.checker_command)
1806
self.checker_command = str(value)
1612
self.checker_command = unicode(value)
1807
1613
1808
1614
# CheckerRunning - property
1809
@dbus_service_property(_interface,
1810
signature="b",
1615
@dbus_service_property(_interface, signature="b",
1811
1616
access="readwrite")
1812
1617
def CheckerRunning_dbus_property(self, value=None):
1813
1618
if value is None: # get
1818
1623
self.stop_checker()
1819
1624
1820
1625
# ObjectPath - property
1821
@dbus_annotations(
1822
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1823
"org.freedesktop.DBus.Deprecated": "true"})
1824
1626
@dbus_service_property(_interface, signature="o", access="read")
1825
1627
def ObjectPath_dbus_property(self):
1826
1628
return self.dbus_object_path # is already a dbus.ObjectPath
1827
1629
1828
1630
# Secret = property
1829
@dbus_annotations(
1830
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
1831
"invalidates"})
1832
@dbus_service_property(_interface,
1833
signature="ay",
1834
access="write",
1835
byte_arrays=True)
1631
@dbus_service_property(_interface, signature="ay",
1632
access="write", byte_arrays=True)
1836
1633
def Secret_dbus_property(self, value):
1837
self.secret = bytes(value)
1634
self.secret = str(value)
1838
1635
1839
1636
del _interface
1840
1637
1844
1641
self._pipe = child_pipe
1845
1642
self._pipe.send(('init', fpr, address))
1846
1643
if not self._pipe.recv():
1847
raise KeyError(fpr)
1644
raise KeyError()
1848
1645
1849
1646
def __getattribute__(self, name):
1850
1647
if name == '_pipe':
1854
1651
if data[0] == 'data':
1855
1652
return data[1]
1856
1653
if data[0] == 'function':
1857
1858
1654
def func(*args, **kwargs):
1859
1655
self._pipe.send(('funcall', name, args, kwargs))
1860
1656
return self._pipe.recv()[1]
1861
1862
1657
return func
1863
1658
1864
1659
def __setattr__(self, name, value):
1876
1671
def handle(self):
1877
1672
with contextlib.closing(self.server.child_pipe) as child_pipe:
1878
1673
logger.info("TCP connection from: %s",
1879
str(self.client_address))
1674
unicode(self.client_address))
1880
1675
logger.debug("Pipe FD: %d",
1881
1676
self.server.child_pipe.fileno())
1882
1677
1883
session = gnutls.connection.ClientSession(
1884
self.request, gnutls.connection .X509Credentials())
1678
session = (gnutls.connection
1679
.ClientSession(self.request,
1680
gnutls.connection
1681
.X509Credentials()))
1885
1682
1886
1683
# Note: gnutls.connection.X509Credentials is really a
1887
1684
# generic GnuTLS certificate credentials object so long as
1896
1693
priority = self.server.gnutls_priority
1897
1694
if priority is None:
1898
1695
priority = "NORMAL"
1899
gnutls.library.functions.gnutls_priority_set_direct(
1900
session._c_object, priority, None)
1696
(gnutls.library.functions
1697
.gnutls_priority_set_direct(session._c_object,
1698
priority, None))
1901
1699
1902
1700
# Start communication using the Mandos protocol
1903
1701
# Get protocol number
1923
1721
approval_required = False
1924
1722
try:
1925
1723
try:
1926
fpr = self.fingerprint(
1927
self.peer_certificate(session))
1724
fpr = self.fingerprint(self.peer_certificate
1725
(session))
1928
1726
except (TypeError,
1929
1727
gnutls.errors.GNUTLSError) as error:
1930
1728
logger.warning("Bad certificate: %s", error)
1945
1743
while True:
1946
1744
if not client.enabled:
1947
1745
logger.info("Client %s is disabled",
1948
client.name)
1746
client.name)
1949
1747
if self.server.use_dbus:
1950
1748
# Emit D-Bus signal
1951
1749
client.Rejected("Disabled")
1960
1758
if self.server.use_dbus:
1961
1759
# Emit D-Bus signal
1962
1760
client.NeedApproval(
1963
client.approval_delay.total_seconds()
1964
* 1000, client.approved_by_default)
1761
client.approval_delay_milliseconds(),
1762
client.approved_by_default)
1965
1763
else:
1966
1764
logger.warning("Client %s was not approved",
1967
1765
client.name)
1973
1771
#wait until timeout or approved
1974
1772
time = datetime.datetime.now()
1975
1773
client.changedstate.acquire()
1976
client.changedstate.wait(delay.total_seconds())
1774
client.changedstate.wait(
1775
float(timedelta_to_milliseconds(delay)
1776
/ 1000))
1977
1777
client.changedstate.release()
1978
1778
time2 = datetime.datetime.now()
1979
1779
if (time2 - time) >= delay:
1998
1798
logger.warning("gnutls send failed",
1999
1799
exc_info=error)
2000
1800
return
2001
logger.debug("Sent: %d, remaining: %d", sent,
2002
len(client.secret) - (sent_size
2003
+ sent))
1801
logger.debug("Sent: %d, remaining: %d",
1802
sent, len(client.secret)
1803
- (sent_size + sent))
2004
1804
sent_size += sent
2005
1805
2006
1806
logger.info("Sending secret to %s", client.name)
2023
1823
def peer_certificate(session):
2024
1824
"Return the peer's OpenPGP certificate as a bytestring"
2025
1825
# If not an OpenPGP certificate...
2026
if (gnutls.library.functions.gnutls_certificate_type_get(
2027
session._c_object)
1826
if (gnutls.library.functions
1827
.gnutls_certificate_type_get(session._c_object)
2028
1828
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2029
1829
# ...do the normal thing
2030
1830
return session.peer_certificate
2044
1844
def fingerprint(openpgp):
2045
1845
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2046
1846
# New GnuTLS "datum" with the OpenPGP public key
2047
datum = gnutls.library.types.gnutls_datum_t(
2048
ctypes.cast(ctypes.c_char_p(openpgp),
2049
ctypes.POINTER(ctypes.c_ubyte)),
2050
ctypes.c_uint(len(openpgp)))
1847
datum = (gnutls.library.types
1848
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1849
ctypes.POINTER
1850
(ctypes.c_ubyte)),
1851
ctypes.c_uint(len(openpgp))))
2051
1852
# New empty GnuTLS certificate
2052
1853
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2053
gnutls.library.functions.gnutls_openpgp_crt_init(
2054
ctypes.byref(crt))
1854
(gnutls.library.functions
1855
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2055
1856
# Import the OpenPGP public key into the certificate
2056
gnutls.library.functions.gnutls_openpgp_crt_import(
2057
crt, ctypes.byref(datum),
2058
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1857
(gnutls.library.functions
1858
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1859
gnutls.library.constants
1860
.GNUTLS_OPENPGP_FMT_RAW))
2059
1861
# Verify the self signature in the key
2060
1862
crtverify = ctypes.c_uint()
2061
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2062
crt, 0, ctypes.byref(crtverify))
1863
(gnutls.library.functions
1864
.gnutls_openpgp_crt_verify_self(crt, 0,
1865
ctypes.byref(crtverify)))
2063
1866
if crtverify.value != 0:
2064
1867
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2065
raise gnutls.errors.CertificateSecurityError(
2066
"Verify failed")
1868
raise (gnutls.errors.CertificateSecurityError
1869
("Verify failed"))
2067
1870
# New buffer for the fingerprint
2068
1871
buf = ctypes.create_string_buffer(20)
2069
1872
buf_len = ctypes.c_size_t()
2070
1873
# Get the fingerprint from the certificate into the buffer
2071
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
2072
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1874
(gnutls.library.functions
1875
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1876
ctypes.byref(buf_len)))
2073
1877
# Deinit the certificate
2074
1878
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2075
1879
# Convert the buffer to a Python bytestring
2081
1885
2082
1886
class MultiprocessingMixIn(object):
2083
1887
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2084
2085
1888
def sub_process_main(self, request, address):
2086
1889
try:
2087
1890
self.finish_request(request, address)
2099
1902
2100
1903
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2101
1904
""" adds a pipe to the MixIn """
2102
2103
1905
def process_request(self, request, client_address):
2104
1906
"""Overrides and wraps the original process_request().
2105
1907
2126
1928
interface: None or a network interface name (string)
2127
1929
use_ipv6: Boolean; to use IPv6 or not
2128
1930
"""
2129
2130
1931
def __init__(self, server_address, RequestHandlerClass,
2131
interface=None,
2132
use_ipv6=True,
2133
socketfd=None):
1932
interface=None, use_ipv6=True, socketfd=None):
2134
1933
"""If socketfd is set, use that file descriptor instead of
2135
1934
creating a new one with socket.socket().
2136
1935
"""
2177
1976
self.interface)
2178
1977
else:
2179
1978
try:
2180
self.socket.setsockopt(
2181
socket.SOL_SOCKET, SO_BINDTODEVICE,
2182
(self.interface + "\0").encode("utf-8"))
1979
self.socket.setsockopt(socket.SOL_SOCKET,
1980
SO_BINDTODEVICE,
1981
str(self.interface + '\0'))
2183
1982
except socket.error as error:
2184
1983
if error.errno == errno.EPERM:
2185
1984
logger.error("No permission to bind to"
2203
2002
self.server_address = (any_address,
2204
2003
self.server_address[1])
2205
2004
elif not self.server_address[1]:
2206
self.server_address = (self.server_address[0], 0)
2005
self.server_address = (self.server_address[0],
2006
0)
2207
2007
# if self.interface:
2208
2008
# self.server_address = (self.server_address[0],
2209
2009
# 0, # port
2223
2023
2224
2024
Assumes a gobject.MainLoop event loop.
2225
2025
"""
2226
2227
2026
def __init__(self, server_address, RequestHandlerClass,
2228
interface=None,
2229
use_ipv6=True,
2230
clients=None,
2231
gnutls_priority=None,
2232
use_dbus=True,
2233
socketfd=None):
2027
interface=None, use_ipv6=True, clients=None,
2028
gnutls_priority=None, use_dbus=True, socketfd=None):
2234
2029
self.enabled = False
2235
2030
self.clients = clients
2236
2031
if self.clients is None:
2242
2037
interface = interface,
2243
2038
use_ipv6 = use_ipv6,
2244
2039
socketfd = socketfd)
2245
2246
2040
def server_activate(self):
2247
2041
if self.enabled:
2248
2042
return socketserver.TCPServer.server_activate(self)
2252
2046
2253
2047
def add_pipe(self, parent_pipe, proc):
2254
2048
# Call "handle_ipc" for both data and EOF events
2255
gobject.io_add_watch(
2256
parent_pipe.fileno(),
2257
gobject.IO_IN | gobject.IO_HUP,
2258
functools.partial(self.handle_ipc,
2259
parent_pipe = parent_pipe,
2260
proc = proc))
2049
gobject.io_add_watch(parent_pipe.fileno(),
2050
gobject.IO_IN | gobject.IO_HUP,
2051
functools.partial(self.handle_ipc,
2052
parent_pipe =
2053
parent_pipe,
2054
proc = proc))
2261
2055
2262
def handle_ipc(self, source, condition,
2263
parent_pipe=None,
2264
proc = None,
2265
client_object=None):
2056
def handle_ipc(self, source, condition, parent_pipe=None,
2057
proc = None, client_object=None):
2266
2058
# error, or the other end of multiprocessing.Pipe has closed
2267
2059
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2268
2060
# Wait for other process to exit
2291
2083
parent_pipe.send(False)
2292
2084
return False
2293
2085
2294
gobject.io_add_watch(
2295
parent_pipe.fileno(),
2296
gobject.IO_IN | gobject.IO_HUP,
2297
functools.partial(self.handle_ipc,
2298
parent_pipe = parent_pipe,
2299
proc = proc,
2300
client_object = client))
2086
gobject.io_add_watch(parent_pipe.fileno(),
2087
gobject.IO_IN | gobject.IO_HUP,
2088
functools.partial(self.handle_ipc,
2089
parent_pipe =
2090
parent_pipe,
2091
proc = proc,
2092
client_object =
2093
client))
2301
2094
parent_pipe.send(True)
2302
2095
# remove the old hook in favor of the new above hook on
2303
2096
# same fileno
2309
2102
2310
2103
parent_pipe.send(('data', getattr(client_object,
2311
2104
funcname)(*args,
2312
**kwargs)))
2105
**kwargs)))
2313
2106
2314
2107
if command == 'getattr':
2315
2108
attrname = request[1]
2316
if isinstance(client_object.__getattribute__(attrname),
2317
collections.Callable):
2318
parent_pipe.send(('function', ))
2109
if callable(client_object.__getattribute__(attrname)):
2110
parent_pipe.send(('function',))
2319
2111
else:
2320
parent_pipe.send((
2321
'data', client_object.__getattribute__(attrname)))
2112
parent_pipe.send(('data', client_object
2113
.__getattribute__(attrname)))
2322
2114
2323
2115
if command == 'setattr':
2324
2116
attrname = request[1]
2355
2147
# avoid excessive use of external libraries.
2356
2148
2357
2149
# New type for defining tokens, syntax, and semantics all-in-one
2358
Token = collections.namedtuple("Token", (
2359
"regexp", # To match token; if "value" is not None, must have
2360
# a "group" containing digits
2361
"value", # datetime.timedelta or None
2362
"followers")) # Tokens valid after this token
2150
Token = collections.namedtuple("Token",
2151
("regexp", # To match token; if
2152
# "value" is not None,
2153
# must have a "group"
2154
# containing digits
2155
"value", # datetime.timedelta or
2156
# None
2157
"followers")) # Tokens valid after
2158
# this token
2363
2159
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2364
2160
# the "duration" ABNF definition in RFC 3339, Appendix A.
2365
2161
token_end = Token(re.compile(r"$"), None, frozenset())
2366
2162
token_second = Token(re.compile(r"(\d+)S"),
2367
2163
datetime.timedelta(seconds=1),
2368
frozenset((token_end, )))
2164
frozenset((token_end,)))
2369
2165
token_minute = Token(re.compile(r"(\d+)M"),
2370
2166
datetime.timedelta(minutes=1),
2371
2167
frozenset((token_second, token_end)))
2387
2183
frozenset((token_month, token_end)))
2388
2184
token_week = Token(re.compile(r"(\d+)W"),
2389
2185
datetime.timedelta(weeks=1),
2390
frozenset((token_end, )))
2186
frozenset((token_end,)))
2391
2187
token_duration = Token(re.compile(r"P"), None,
2392
2188
frozenset((token_year, token_month,
2393
2189
token_day, token_time,
2394
token_week)))
2190
token_week))),
2395
2191
# Define starting values
2396
2192
value = datetime.timedelta() # Value so far
2397
2193
found_token = None
2398
followers = frozenset((token_duration, )) # Following valid tokens
2194
followers = frozenset(token_duration,) # Following valid tokens
2399
2195
s = duration # String left to parse
2400
2196
# Loop until end token is found
2401
2197
while found_token is not token_end:
2418
2214
break
2419
2215
else:
2420
2216
# No currently valid tokens were found
2421
raise ValueError("Invalid RFC 3339 duration: {!r}"
2422
.format(duration))
2217
raise ValueError("Invalid RFC 3339 duration")
2423
2218
# End token found
2424
2219
return value
2425
2220
2449
2244
timevalue = datetime.timedelta(0)
2450
2245
for s in interval.split():
2451
2246
try:
2452
suffix = s[-1]
2247
suffix = unicode(s[-1])
2453
2248
value = int(s[:-1])
2454
2249
if suffix == "d":
2455
2250
delta = datetime.timedelta(value)
2462
2257
elif suffix == "w":
2463
2258
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2464
2259
else:
2465
raise ValueError("Unknown suffix {!r}".format(suffix))
2260
raise ValueError("Unknown suffix {0!r}"
2261
.format(suffix))
2466
2262
except IndexError as e:
2467
2263
raise ValueError(*(e.args))
2468
2264
timevalue += delta
2485
2281
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2486
2282
if not stat.S_ISCHR(os.fstat(null).st_mode):
2487
2283
raise OSError(errno.ENODEV,
2488
"{} not a character device"
2284
"{0} not a character device"
2489
2285
.format(os.devnull))
2490
2286
os.dup2(null, sys.stdin.fileno())
2491
2287
os.dup2(null, sys.stdout.fileno())
2501
2297
2502
2298
parser = argparse.ArgumentParser()
2503
2299
parser.add_argument("-v", "--version", action="version",
2504
version = "%(prog)s {}".format(version),
2300
version = "%(prog)s {0}".format(version),
2505
2301
help="show version number and exit")
2506
2302
parser.add_argument("-i", "--interface", metavar="IF",
2507
2303
help="Bind to interface IF")
2540
2336
help="Directory to save/restore state in")
2541
2337
parser.add_argument("--foreground", action="store_true",
2542
2338
help="Run in foreground", default=None)
2543
parser.add_argument("--no-zeroconf", action="store_false",
2544
dest="zeroconf", help="Do not use Zeroconf",
2545
default=None)
2546
2339
2547
2340
options = parser.parse_args()
2548
2341
2549
2342
if options.check:
2550
2343
import doctest
2551
fail_count, test_count = doctest.testmod()
2552
sys.exit(os.EX_OK if fail_count == 0 else 1)
2344
doctest.testmod()
2345
sys.exit()
2553
2346
2554
2347
# Default values for config file for server-global settings
2555
2348
server_defaults = { "interface": "",
2557
2350
"port": "",
2558
2351
"debug": "False",
2559
2352
"priority":
2560
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2561
":+SIGN-DSA-SHA256",
2353
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2562
2354
"servicename": "Mandos",
2563
2355
"use_dbus": "True",
2564
2356
"use_ipv6": "True",
2567
2359
"socket": "",
2568
2360
"statedir": "/var/lib/mandos",
2569
2361
"foreground": "False",
2570
"zeroconf": "True",
2571
}
2362
}
2572
2363
2573
2364
# Parse config file for server-global settings
2574
2365
server_config = configparser.SafeConfigParser(server_defaults)
2575
2366
del server_defaults
2576
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2367
server_config.read(os.path.join(options.configdir,
2368
"mandos.conf"))
2577
2369
# Convert the SafeConfigParser object to a dict
2578
2370
server_settings = server_config.defaults()
2579
2371
# Use the appropriate methods on the non-string config options
2597
2389
# Override the settings from the config file with command line
2598
2390
# options, if set.
2599
2391
for option in ("interface", "address", "port", "debug",
2600
"priority", "servicename", "configdir", "use_dbus",
2601
"use_ipv6", "debuglevel", "restore", "statedir",
2602
"socket", "foreground", "zeroconf"):
2392
"priority", "servicename", "configdir",
2393
"use_dbus", "use_ipv6", "debuglevel", "restore",
2394
"statedir", "socket", "foreground"):
2603
2395
value = getattr(options, option)
2604
2396
if value is not None:
2605
2397
server_settings[option] = value
2606
2398
del options
2607
2399
# Force all strings to be unicode
2608
2400
for option in server_settings.keys():
2609
if isinstance(server_settings[option], bytes):
2610
server_settings[option] = (server_settings[option]
2611
.decode("utf-8"))
2401
if type(server_settings[option]) is str:
2402
server_settings[option] = unicode(server_settings[option])
2612
2403
# Force all boolean options to be boolean
2613
2404
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2614
"foreground", "zeroconf"):
2405
"foreground"):
2615
2406
server_settings[option] = bool(server_settings[option])
2616
2407
# Debug implies foreground
2617
2408
if server_settings["debug"]:
2620
2411
2621
2412
##################################################################
2622
2413
2623
if (not server_settings["zeroconf"]
2624
and not (server_settings["port"]
2625
or server_settings["socket"] != "")):
2626
parser.error("Needs port or socket to work without Zeroconf")
2627
2628
2414
# For convenience
2629
2415
debug = server_settings["debug"]
2630
2416
debuglevel = server_settings["debuglevel"]
2633
2419
stored_state_path = os.path.join(server_settings["statedir"],
2634
2420
stored_state_file)
2635
2421
foreground = server_settings["foreground"]
2636
zeroconf = server_settings["zeroconf"]
2637
2422
2638
2423
if debug:
2639
2424
initlogger(debug, logging.DEBUG)
2645
2430
initlogger(debug, level)
2646
2431
2647
2432
if server_settings["servicename"] != "Mandos":
2648
syslogger.setFormatter(
2649
logging.Formatter('Mandos ({}) [%(process)d]:'
2650
' %(levelname)s: %(message)s'.format(
2651
server_settings["servicename"])))
2433
syslogger.setFormatter(logging.Formatter
2434
('Mandos ({0}) [%(process)d]:'
2435
' %(levelname)s: %(message)s'
2436
.format(server_settings
2437
["servicename"])))
2652
2438
2653
2439
# Parse config file with clients
2654
2440
client_config = configparser.SafeConfigParser(Client
2659
2445
global mandos_dbus_service
2660
2446
mandos_dbus_service = None
2661
2447
2662
socketfd = None
2663
if server_settings["socket"] != "":
2664
socketfd = server_settings["socket"]
2665
tcp_server = MandosServer(
2666
(server_settings["address"], server_settings["port"]),
2667
ClientHandler,
2668
interface=(server_settings["interface"] or None),
2669
use_ipv6=use_ipv6,
2670
gnutls_priority=server_settings["priority"],
2671
use_dbus=use_dbus,
2672
socketfd=socketfd)
2448
tcp_server = MandosServer((server_settings["address"],
2449
server_settings["port"]),
2450
ClientHandler,
2451
interface=(server_settings["interface"]
2452
or None),
2453
use_ipv6=use_ipv6,
2454
gnutls_priority=
2455
server_settings["priority"],
2456
use_dbus=use_dbus,
2457
socketfd=(server_settings["socket"]
2458
or None))
2673
2459
if not foreground:
2674
2460
pidfilename = "/run/mandos.pid"
2675
2461
if not os.path.isdir("/run/."):
2676
2462
pidfilename = "/var/run/mandos.pid"
2677
2463
pidfile = None
2678
2464
try:
2679
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2465
pidfile = open(pidfilename, "w")
2680
2466
except IOError as e:
2681
2467
logger.error("Could not open file %r", pidfilename,
2682
2468
exc_info=e)
2709
2495
def debug_gnutls(level, string):
2710
2496
logger.debug("GnuTLS: %s", string[:-1])
2711
2497
2712
gnutls.library.functions.gnutls_global_set_log_function(
2713
debug_gnutls)
2498
(gnutls.library.functions
2499
.gnutls_global_set_log_function(debug_gnutls))
2714
2500
2715
2501
# Redirect stdin so all checkers get /dev/null
2716
2502
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2736
2522
if use_dbus:
2737
2523
try:
2738
2524
bus_name = dbus.service.BusName("se.recompile.Mandos",
2739
bus,
2740
do_not_queue=True)
2741
old_bus_name = dbus.service.BusName(
2742
"se.bsnet.fukt.Mandos", bus,
2743
do_not_queue=True)
2744
except dbus.exceptions.DBusException as e:
2525
bus, do_not_queue=True)
2526
old_bus_name = (dbus.service.BusName
2527
("se.bsnet.fukt.Mandos", bus,
2528
do_not_queue=True))
2529
except dbus.exceptions.NameExistsException as e:
2745
2530
logger.error("Disabling D-Bus:", exc_info=e)
2746
2531
use_dbus = False
2747
2532
server_settings["use_dbus"] = False
2748
2533
tcp_server.use_dbus = False
2749
if zeroconf:
2750
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2751
service = AvahiServiceToSyslog(
2752
name = server_settings["servicename"],
2753
servicetype = "_mandos._tcp",
2754
protocol = protocol,
2755
bus = bus)
2756
if server_settings["interface"]:
2757
service.interface = if_nametoindex(
2758
server_settings["interface"].encode("utf-8"))
2534
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2535
service = AvahiServiceToSyslog(name =
2536
server_settings["servicename"],
2537
servicetype = "_mandos._tcp",
2538
protocol = protocol, bus = bus)
2539
if server_settings["interface"]:
2540
service.interface = (if_nametoindex
2541
(str(server_settings["interface"])))
2759
2542
2760
2543
global multiprocessing_manager
2761
2544
multiprocessing_manager = multiprocessing.Manager()
2780
2563
if server_settings["restore"]:
2781
2564
try:
2782
2565
with open(stored_state_path, "rb") as stored_state:
2783
clients_data, old_client_settings = pickle.load(
2784
stored_state)
2566
clients_data, old_client_settings = (pickle.load
2567
(stored_state))
2785
2568
os.remove(stored_state_path)
2786
2569
except IOError as e:
2787
2570
if e.errno == errno.ENOENT:
2788
logger.warning("Could not load persistent state:"
2789
" {}".format(os.strerror(e.errno)))
2571
logger.warning("Could not load persistent state: {0}"
2572
.format(os.strerror(e.errno)))
2790
2573
else:
2791
2574
logger.critical("Could not load persistent state:",
2792
2575
exc_info=e)
2793
2576
raise
2794
2577
except EOFError as e:
2795
2578
logger.warning("Could not load persistent state: "
2796
"EOFError:",
2797
exc_info=e)
2579
"EOFError:", exc_info=e)
2798
2580
2799
2581
with PGPEngine() as pgp:
2800
for client_name, client in clients_data.items():
2582
for client_name, client in clients_data.iteritems():
2801
2583
# Skip removed clients
2802
2584
if client_name not in client_settings:
2803
2585
continue
2812
2594
# For each value in new config, check if it
2813
2595
# differs from the old config value (Except for
2814
2596
# the "secret" attribute)
2815
if (name != "secret"
2816
and (value !=
2817
old_client_settings[client_name][name])):
2597
if (name != "secret" and
2598
value != old_client_settings[client_name]
2599
[name]):
2818
2600
client[name] = value
2819
2601
except KeyError:
2820
2602
pass
2821
2603
2822
2604
# Clients who has passed its expire date can still be
2823
# enabled if its last checker was successful. A Client
2605
# enabled if its last checker was successful. Clients
2824
2606
# whose checker succeeded before we stored its state is
2825
2607
# assumed to have successfully run all checkers during
2826
2608
# downtime.
2828
2610
if datetime.datetime.utcnow() >= client["expires"]:
2829
2611
if not client["last_checked_ok"]:
2830
2612
logger.warning(
2831
"disabling client {} - Client never "
2832
"performed a successful checker".format(
2833
client_name))
2613
"disabling client {0} - Client never "
2614
"performed a successful checker"
2615
.format(client_name))
2834
2616
client["enabled"] = False
2835
2617
elif client["last_checker_status"] != 0:
2836
2618
logger.warning(
2837
"disabling client {} - Client last"
2838
" checker failed with error code"
2839
" {}".format(
2840
client_name,
2841
client["last_checker_status"]))
2619
"disabling client {0} - Client "
2620
"last checker failed with error code {1}"
2621
.format(client_name,
2622
client["last_checker_status"]))
2842
2623
client["enabled"] = False
2843
2624
else:
2844
client["expires"] = (
2845
datetime.datetime.utcnow()
2846
+ client["timeout"])
2625
client["expires"] = (datetime.datetime
2626
.utcnow()
2627
+ client["timeout"])
2847
2628
logger.debug("Last checker succeeded,"
2848
" keeping {} enabled".format(
2849
client_name))
2629
" keeping {0} enabled"
2630
.format(client_name))
2850
2631
try:
2851
client["secret"] = pgp.decrypt(
2852
client["encrypted_secret"],
2853
client_settings[client_name]["secret"])
2632
client["secret"] = (
2633
pgp.decrypt(client["encrypted_secret"],
2634
client_settings[client_name]
2635
["secret"]))
2854
2636
except PGPError:
2855
2637
# If decryption fails, we use secret from new settings
2856
logger.debug("Failed to decrypt {} old secret".format(
2857
client_name))
2858
client["secret"] = (client_settings[client_name]
2859
["secret"])
2638
logger.debug("Failed to decrypt {0} old secret"
2639
.format(client_name))
2640
client["secret"] = (
2641
client_settings[client_name]["secret"])
2860
2642
2861
2643
# Add/remove clients based on new changes made to config
2862
2644
for client_name in (set(old_client_settings)
2867
2649
clients_data[client_name] = client_settings[client_name]
2868
2650
2869
2651
# Create all client objects
2870
for client_name, client in clients_data.items():
2652
for client_name, client in clients_data.iteritems():
2871
2653
tcp_server.clients[client_name] = client_class(
2872
name = client_name,
2873
settings = client,
2654
name = client_name, settings = client,
2874
2655
server_settings = server_settings)
2875
2656
2876
2657
if not tcp_server.clients:
2878
2659
2879
2660
if not foreground:
2880
2661
if pidfile is not None:
2881
pid = os.getpid()
2882
2662
try:
2883
2663
with pidfile:
2884
print(pid, file=pidfile)
2664
pid = os.getpid()
2665
pidfile.write(str(pid) + "\n".encode("utf-8"))
2885
2666
except IOError:
2886
2667
logger.error("Could not write to file %r with PID %d",
2887
2668
pidfilename, pid)
2892
2673
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2893
2674
2894
2675
if use_dbus:
2895
2896
@alternate_dbus_interfaces(
2897
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2898
class MandosDBusService(DBusObjectWithObjectManager):
2676
@alternate_dbus_interfaces({"se.recompile.Mandos":
2677
"se.bsnet.fukt.Mandos"})
2678
class MandosDBusService(DBusObjectWithProperties):
2899
2679
"""A D-Bus proxy object"""
2900
2901
2680
def __init__(self):
2902
2681
dbus.service.Object.__init__(self, bus, "/")
2903
2904
2682
_interface = "se.recompile.Mandos"
2905
2683
2684
@dbus_interface_annotations(_interface)
2685
def _foo(self):
2686
return { "org.freedesktop.DBus.Property"
2687
".EmitsChangedSignal":
2688
"false"}
2689
2906
2690
@dbus.service.signal(_interface, signature="o")
2907
2691
def ClientAdded(self, objpath):
2908
2692
"D-Bus signal"
2913
2697
"D-Bus signal"
2914
2698
pass
2915
2699
2916
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2917
"true"})
2918
2700
@dbus.service.signal(_interface, signature="os")
2919
2701
def ClientRemoved(self, objpath, name):
2920
2702
"D-Bus signal"
2921
2703
pass
2922
2704
2923
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2924
"true"})
2925
2705
@dbus.service.method(_interface, out_signature="ao")
2926
2706
def GetAllClients(self):
2927
2707
"D-Bus method"
2928
return dbus.Array(c.dbus_object_path for c in
2708
return dbus.Array(c.dbus_object_path
2709
for c in
2929
2710
tcp_server.clients.itervalues())
2930
2711
2931
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2932
"true"})
2933
2712
@dbus.service.method(_interface,
2934
2713
out_signature="a{oa{sv}}")
2935
2714
def GetAllClientsWithProperties(self):
2936
2715
"D-Bus method"
2937
2716
return dbus.Dictionary(
2938
{ c.dbus_object_path: c.GetAll(
2939
"se.recompile.Mandos.Client")
2940
for c in tcp_server.clients.itervalues() },
2717
((c.dbus_object_path, c.GetAll(""))
2718
for c in tcp_server.clients.itervalues()),
2941
2719
signature="oa{sv}")
2942
2720
2943
2721
@dbus.service.method(_interface, in_signature="o")
2947
2725
if c.dbus_object_path == object_path:
2948
2726
del tcp_server.clients[c.name]
2949
2727
c.remove_from_connection()
2950
# Don't signal the disabling
2728
# Don't signal anything except ClientRemoved
2951
2729
c.disable(quiet=True)
2952
# Emit D-Bus signal for removal
2953
self.client_removed_signal(c)
2730
# Emit D-Bus signal
2731
self.ClientRemoved(object_path, c.name)
2954
2732
return
2955
2733
raise KeyError(object_path)
2956
2734
2957
2735
del _interface
2958
2959
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
2960
out_signature = "a{oa{sa{sv}}}")
2961
def GetManagedObjects(self):
2962
"""D-Bus method"""
2963
return dbus.Dictionary(
2964
{ client.dbus_object_path:
2965
dbus.Dictionary(
2966
{ interface: client.GetAll(interface)
2967
for interface in
2968
client._get_all_interface_names()})
2969
for client in tcp_server.clients.values()})
2970
2971
def client_added_signal(self, client):
2972
"""Send the new standard signal and the old signal"""
2973
if use_dbus:
2974
# New standard signal
2975
self.InterfacesAdded(
2976
client.dbus_object_path,
2977
dbus.Dictionary(
2978
{ interface: client.GetAll(interface)
2979
for interface in
2980
client._get_all_interface_names()}))
2981
# Old signal
2982
self.ClientAdded(client.dbus_object_path)
2983
2984
def client_removed_signal(self, client):
2985
"""Send the new standard signal and the old signal"""
2986
if use_dbus:
2987
# New standard signal
2988
self.InterfacesRemoved(
2989
client.dbus_object_path,
2990
client._get_all_interface_names())
2991
# Old signal
2992
self.ClientRemoved(client.dbus_object_path,
2993
client.name)
2994
2736
2995
2737
mandos_dbus_service = MandosDBusService()
2996
2738
2997
2739
def cleanup():
2998
2740
"Cleanup function; run on exit"
2999
if zeroconf:
3000
service.cleanup()
2741
service.cleanup()
3001
2742
3002
2743
multiprocessing.active_children()
3003
2744
wnull.close()
3017
2758
3018
2759
# A list of attributes that can not be pickled
3019
2760
# + secret.
3020
exclude = { "bus", "changedstate", "secret",
3021
"checker", "server_settings" }
3022
for name, typ in inspect.getmembers(dbus.service
3023
.Object):
2761
exclude = set(("bus", "changedstate", "secret",
2762
"checker", "server_settings"))
2763
for name, typ in (inspect.getmembers
2764
(dbus.service.Object)):
3024
2765
exclude.add(name)
3025
2766
3026
2767
client_dict["encrypted_secret"] = (client
3033
2774
del client_settings[client.name]["secret"]
3034
2775
3035
2776
try:
3036
with tempfile.NamedTemporaryFile(
3037
mode='wb',
3038
suffix=".pickle",
3039
prefix='clients-',
3040
dir=os.path.dirname(stored_state_path),
3041
delete=False) as stored_state:
2777
with (tempfile.NamedTemporaryFile
2778
(mode='wb', suffix=".pickle", prefix='clients-',
2779
dir=os.path.dirname(stored_state_path),
2780
delete=False)) as stored_state:
3042
2781
pickle.dump((clients, client_settings), stored_state)
3043
tempname = stored_state.name
2782
tempname=stored_state.name
3044
2783
os.rename(tempname, stored_state_path)
3045
2784
except (IOError, OSError) as e:
3046
2785
if not debug:
3049
2788
except NameError:
3050
2789
pass
3051
2790
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3052
logger.warning("Could not save persistent state: {}"
2791
logger.warning("Could not save persistent state: {0}"
3053
2792
.format(os.strerror(e.errno)))
3054
2793
else:
3055
2794
logger.warning("Could not save persistent state:",
3061
2800
name, client = tcp_server.clients.popitem()
3062
2801
if use_dbus:
3063
2802
client.remove_from_connection()
3064
# Don't signal the disabling
2803
# Don't signal anything except ClientRemoved
3065
2804
client.disable(quiet=True)
3066
# Emit D-Bus signal for removal
3067
2805
if use_dbus:
3068
mandos_dbus_service.client_removed_signal(client)
2806
# Emit D-Bus signal
2807
mandos_dbus_service.ClientRemoved(client
2808
.dbus_object_path,
2809
client.name)
3069
2810
client_settings.clear()
3070
2811
3071
2812
atexit.register(cleanup)
3072
2813
3073
2814
for client in tcp_server.clients.itervalues():
3074
2815
if use_dbus:
3075
# Emit D-Bus signal for adding
3076
mandos_dbus_service.client_added_signal(client)
2816
# Emit D-Bus signal
2817
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3077
2818
# Need to initiate checking of clients
3078
2819
if client.enabled:
3079
2820
client.init_checker()
3082
2823
tcp_server.server_activate()
3083
2824
3084
2825
# Find out what port we got
3085
if zeroconf:
3086
service.port = tcp_server.socket.getsockname()[1]
2826
service.port = tcp_server.socket.getsockname()[1]
3087
2827
if use_ipv6:
3088
2828
logger.info("Now listening on address %r, port %d,"
3089
2829
" flowinfo %d, scope_id %d",
3095
2835
#service.interface = tcp_server.socket.getsockname()[3]
3096
2836
3097
2837
try:
3098
if zeroconf:
3099
# From the Avahi example code
3100
try:
3101
service.activate()
3102
except dbus.exceptions.DBusException as error:
3103
logger.critical("D-Bus Exception", exc_info=error)
3104
cleanup()
3105
sys.exit(1)
3106
# End of Avahi example code
2838
# From the Avahi example code
2839
try:
2840
service.activate()
2841
except dbus.exceptions.DBusException as error:
2842
logger.critical("D-Bus Exception", exc_info=error)
2843
cleanup()
2844
sys.exit(1)
2845
# End of Avahi example code
3107
2846
3108
2847
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3109
2848
lambda *args, **kwargs:
3124
2863
# Must run before the D-Bus bus name gets deregistered
3125
2864
cleanup()
3126
2865
3127
3128
2866
if __name__ == '__main__':
3129
2867
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0