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- Committer: Teddy Hogeborn
- Date: 2013-10-20 15:25:09 UTC
- mto: (237.7.272 trunk)
- mto: This revision was merged to the branch mainline in revision 305.
- Revision ID: teddy@recompile.se-20131020152509-zkhuy2yse76w10hg
* Makefile (CFLAGS, LDFLAGS): Keep default flags from environment.
(purge-server): PID file changed to "/run/mandos.pid".
* debian/compat: Changed to "9".
* debian/control (Standards-Version): Updated to "3.9.4".
(DM-Upload-Allowed): Removed.
(mandos/Depends): Add "initscripts (>= 2.88dsf-13.3)" to be able to
use the "/run" directory (for mandos.pid).
* debian/copyright (Copyright): Update year.
* init.d-mandos (PIDFILE): Changed to "/run/mandos.pid".
* mandos: Update copyright year.
(pidfilename): Changed to "/run/mandos.pid".
* mandos-clients.conf.xml (OPTIONS/approval_delay): Bug fix: default
is "PT0S" - using
the new RFC 3339
duration syntax.
* mandos-keygen: Update copyright year.
* mandos-monitor: - '' -
* mandos.conf.xml: - '' -
* mandos.xml: - '' -
(FILES): PID file changed to "/run/mandos.pid".
* plugin-runner.c: Update copyright year.
* plugins.d/mandos-client.c: - '' -
* plugins.d/mandos-client.xml: - '' -
* plugins.d/password-prompt.c: - '' -
* plugins.d/plymouth.c: - '' -
(purge-server): PID file changed to "/run/mandos.pid".
* debian/compat: Changed to "9".
* debian/control (Standards-Version): Updated to "3.9.4".
(DM-Upload-Allowed): Removed.
(mandos/Depends): Add "initscripts (>= 2.88dsf-13.3)" to be able to
use the "/run" directory (for mandos.pid).
* debian/copyright (Copyright): Update year.
* init.d-mandos (PIDFILE): Changed to "/run/mandos.pid".
* mandos: Update copyright year.
(pidfilename): Changed to "/run/mandos.pid".
* mandos-clients.conf.xml (OPTIONS/approval_delay): Bug fix: default
is "PT0S" - using
the new RFC 3339
duration syntax.
* mandos-keygen: Update copyright year.
* mandos-monitor: - '' -
* mandos.conf.xml: - '' -
* mandos.xml: - '' -
(FILES): PID file changed to "/run/mandos.pid".
* plugin-runner.c: Update copyright year.
* plugins.d/mandos-client.c: - '' -
* plugins.d/mandos-client.xml: - '' -
* plugins.d/password-prompt.c: - '' -
* plugins.d/plymouth.c: - '' -
- 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 = "1.6.1"
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',
189
172
def password_encode(self, password):
190
173
# Passphrase can not be empty and can not contain newlines or
191
174
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
198
return encoded
175
return b"mandos" + binascii.hexlify(password)
199
176
200
177
def encrypt(self, data, password):
201
178
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
179
with tempfile.NamedTemporaryFile(dir=self.tempdir
180
) as passfile:
204
181
passfile.write(passphrase)
205
182
passfile.flush()
206
183
proc = subprocess.Popen(['gpg', '--symmetric',
217
194
218
195
def decrypt(self, data, password):
219
196
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
197
with tempfile.NamedTemporaryFile(dir = self.tempdir
198
) as passfile:
222
199
passfile.write(passphrase)
223
200
passfile.flush()
224
201
proc = subprocess.Popen(['gpg', '--decrypt',
228
205
stdin = subprocess.PIPE,
229
206
stdout = subprocess.PIPE,
230
207
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
208
decrypted_plaintext, err = proc.communicate(input
209
= data)
232
210
if proc.returncode != 0:
233
211
raise PGPError(err)
234
212
return decrypted_plaintext
237
215
class AvahiError(Exception):
238
216
def __init__(self, value, *args, **kwargs):
239
217
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
218
super(AvahiError, self).__init__(value, *args, **kwargs)
219
def __unicode__(self):
220
return unicode(repr(self.value))
243
221
244
222
class AvahiServiceError(AvahiError):
245
223
pass
246
224
247
248
225
class AvahiGroupError(AvahiError):
249
226
pass
250
227
270
247
bus: dbus.SystemBus()
271
248
"""
272
249
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):
250
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
251
servicetype = None, port = None, TXT = None,
252
domain = "", host = "", max_renames = 32768,
253
protocol = avahi.PROTO_UNSPEC, bus = None):
284
254
self.interface = interface
285
255
self.name = name
286
256
self.type = servicetype
296
266
self.bus = bus
297
267
self.entry_group_state_changed_match = None
298
268
299
def rename(self, remove=True):
269
def rename(self):
300
270
"""Derived from the Avahi example code"""
301
271
if self.rename_count >= self.max_renames:
302
272
logger.critical("No suitable Zeroconf service name found"
303
273
" after %i retries, exiting.",
304
274
self.rename_count)
305
275
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
276
self.name = unicode(self.server
277
.GetAlternativeServiceName(self.name))
309
278
logger.info("Changing Zeroconf service name to %r ...",
310
279
self.name)
311
if remove:
312
self.remove()
280
self.remove()
313
281
try:
314
282
self.add()
315
283
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)
284
logger.critical("D-Bus Exception", exc_info=error)
285
self.cleanup()
286
os._exit(1)
287
self.rename_count += 1
324
288
325
289
def remove(self):
326
290
"""Derived from the Avahi example code"""
364
328
self.rename()
365
329
elif state == avahi.ENTRY_GROUP_FAILURE:
366
330
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
331
unicode(error))
332
raise AvahiGroupError("State changed: {0!s}"
333
.format(error))
369
334
370
335
def cleanup(self):
371
336
"""Derived from the Avahi example code"""
381
346
def server_state_changed(self, state, error=None):
382
347
"""Derived from the Avahi example code"""
383
348
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
}
349
bad_states = { avahi.SERVER_INVALID:
350
"Zeroconf server invalid",
351
avahi.SERVER_REGISTERING: None,
352
avahi.SERVER_COLLISION:
353
"Zeroconf server name collision",
354
avahi.SERVER_FAILURE:
355
"Zeroconf server failure" }
390
356
if state in bad_states:
391
357
if bad_states[state] is not None:
392
358
if error is None:
395
361
logger.error(bad_states[state] + ": %r", error)
396
362
self.cleanup()
397
363
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)
364
self.add()
410
365
else:
411
366
if error is None:
412
367
logger.debug("Unknown state: %r", state)
422
377
follow_name_owner_changes=True),
423
378
avahi.DBUS_INTERFACE_SERVER)
424
379
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
380
self.server_state_changed)
426
381
self.server_state_changed(self.server.GetState())
427
382
428
383
429
384
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
385
def rename(self):
431
386
"""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)))
387
ret = AvahiService.rename(self)
388
syslogger.setFormatter(logging.Formatter
389
('Mandos ({0}) [%(process)d]:'
390
' %(levelname)s: %(message)s'
391
.format(self.name)))
436
392
return ret
437
393
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()
394
395
def timedelta_to_milliseconds(td):
396
"Convert a datetime.timedelta() to milliseconds"
397
return ((td.days * 24 * 60 * 60 * 1000)
398
+ (td.seconds * 1000)
399
+ (td.microseconds // 1000))
400
447
401
448
402
class Client(object):
449
403
"""A representation of a client host served by this server.
476
430
last_checker_status: integer between 0 and 255 reflecting exit
477
431
status of last checker. -1 reflects crashed
478
432
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
433
last_enabled: datetime.datetime(); (UTC) or None
482
434
name: string; from the config file, used in log messages and
483
435
D-Bus identifiers
496
448
"fingerprint", "host", "interval",
497
449
"last_approval_request", "last_checked_ok",
498
450
"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
}
451
client_defaults = { "timeout": "PT5M",
452
"extended_timeout": "PT15M",
453
"interval": "PT2M",
454
"checker": "fping -q -- %%(host)s",
455
"host": "",
456
"approval_delay": "PT0S",
457
"approval_duration": "PT1S",
458
"approved_by_default": "True",
459
"enabled": "True",
460
}
461
462
def timeout_milliseconds(self):
463
"Return the 'timeout' attribute in milliseconds"
464
return timedelta_to_milliseconds(self.timeout)
465
466
def extended_timeout_milliseconds(self):
467
"Return the 'extended_timeout' attribute in milliseconds"
468
return timedelta_to_milliseconds(self.extended_timeout)
469
470
def interval_milliseconds(self):
471
"Return the 'interval' attribute in milliseconds"
472
return timedelta_to_milliseconds(self.interval)
473
474
def approval_delay_milliseconds(self):
475
return timedelta_to_milliseconds(self.approval_delay)
510
476
511
477
@staticmethod
512
478
def config_parser(config):
528
494
client["enabled"] = config.getboolean(client_name,
529
495
"enabled")
530
496
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
497
client["fingerprint"] = (section["fingerprint"].upper()
535
498
.replace(" ", ""))
536
499
if "secret" in section:
541
504
"rb") as secfile:
542
505
client["secret"] = secfile.read()
543
506
else:
544
raise TypeError("No secret or secfile for section {}"
507
raise TypeError("No secret or secfile for section {0}"
545
508
.format(section))
546
509
client["timeout"] = string_to_delta(section["timeout"])
547
510
client["extended_timeout"] = string_to_delta(
564
527
server_settings = {}
565
528
self.server_settings = server_settings
566
529
# adding all client settings
567
for setting, value in settings.items():
530
for setting, value in settings.iteritems():
568
531
setattr(self, setting, value)
569
532
570
533
if self.enabled:
578
541
self.expires = None
579
542
580
543
logger.debug("Creating client %r", self.name)
544
# Uppercase and remove spaces from fingerprint for later
545
# comparison purposes with return value from the fingerprint()
546
# function
581
547
logger.debug(" Fingerprint: %s", self.fingerprint)
582
548
self.created = settings.get("created",
583
549
datetime.datetime.utcnow())
590
556
self.current_checker_command = None
591
557
self.approved = None
592
558
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()
559
self.changedstate = (multiprocessing_manager
560
.Condition(multiprocessing_manager
561
.Lock()))
562
self.client_structure = [attr for attr in
563
self.__dict__.iterkeys()
597
564
if not attr.startswith("_")]
598
565
self.client_structure.append("client_structure")
599
566
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
567
for name, t in inspect.getmembers(type(self),
568
lambda obj:
569
isinstance(obj,
570
property)):
602
571
if not name.startswith("_"):
603
572
self.client_structure.append(name)
604
573
646
615
# and every interval from then on.
647
616
if self.checker_initiator_tag is not None:
648
617
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)
618
self.checker_initiator_tag = (gobject.timeout_add
619
(self.interval_milliseconds(),
620
self.start_checker))
652
621
# Schedule a disable() when 'timeout' has passed
653
622
if self.disable_initiator_tag is not None:
654
623
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
624
self.disable_initiator_tag = (gobject.timeout_add
625
(self.timeout_milliseconds(),
626
self.disable))
657
627
# Also start a new checker *right now*.
658
628
self.start_checker()
659
629
660
def checker_callback(self, source, condition, connection,
661
command):
630
def checker_callback(self, pid, condition, command):
662
631
"""The checker has completed, so take appropriate actions."""
663
632
self.checker_callback_tag = None
664
633
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
634
if os.WIFEXITED(condition):
635
self.last_checker_status = os.WEXITSTATUS(condition)
672
636
if self.last_checker_status == 0:
673
637
logger.info("Checker for %(name)s succeeded",
674
638
vars(self))
675
639
self.checked_ok()
676
640
else:
677
logger.info("Checker for %(name)s failed", vars(self))
641
logger.info("Checker for %(name)s failed",
642
vars(self))
678
643
else:
679
644
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
645
logger.warning("Checker for %(name)s crashed?",
682
646
vars(self))
683
return False
684
647
685
648
def checked_ok(self):
686
649
"""Assert that the client has been seen, alive and well."""
687
650
self.last_checked_ok = datetime.datetime.utcnow()
688
651
self.last_checker_status = 0
689
self.last_checker_signal = None
690
652
self.bump_timeout()
691
653
692
654
def bump_timeout(self, timeout=None):
697
659
gobject.source_remove(self.disable_initiator_tag)
698
660
self.disable_initiator_tag = None
699
661
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
662
self.disable_initiator_tag = (gobject.timeout_add
663
(timedelta_to_milliseconds
664
(timeout), self.disable))
702
665
self.expires = datetime.datetime.utcnow() + timeout
703
666
704
667
def need_approval(self):
718
681
# than 'timeout' for the client to be disabled, which is as it
719
682
# should be.
720
683
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
684
# If a checker exists, make sure it is not a zombie
685
try:
686
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
687
except (AttributeError, OSError) as error:
688
if (isinstance(error, OSError)
689
and error.errno != errno.ECHILD):
690
raise error
691
else:
692
if pid:
693
logger.warning("Checker was a zombie")
694
gobject.source_remove(self.checker_callback_tag)
695
self.checker_callback(pid, status,
696
self.current_checker_command)
725
697
# Start a new checker if needed
726
698
if self.checker is None:
727
699
# Escape attributes for the shell
728
escaped_attrs = {
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
700
escaped_attrs = dict(
701
(attr, re.escape(unicode(getattr(self, attr))))
702
for attr in
703
self.runtime_expansions)
731
704
try:
732
705
command = self.checker_command % escaped_attrs
733
706
except TypeError as error:
734
707
logger.error('Could not format string "%s"',
735
self.checker_command,
708
self.checker_command, exc_info=error)
709
return True # Try again later
710
self.current_checker_command = command
711
try:
712
logger.info("Starting checker %r for %s",
713
command, self.name)
714
# We don't need to redirect stdout and stderr, since
715
# in normal mode, that is already done by daemon(),
716
# and in debug mode we don't want to. (Stdin is
717
# always replaced by /dev/null.)
718
# The exception is when not debugging but nevertheless
719
# running in the foreground; use the previously
720
# created wnull.
721
popen_args = {}
722
if (not self.server_settings["debug"]
723
and self.server_settings["foreground"]):
724
popen_args.update({"stdout": wnull,
725
"stderr": wnull })
726
self.checker = subprocess.Popen(command,
727
close_fds=True,
728
shell=True, cwd="/",
729
**popen_args)
730
except OSError as error:
731
logger.error("Failed to start subprocess",
736
732
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)
733
return True
734
self.checker_callback_tag = (gobject.child_watch_add
735
(self.checker.pid,
736
self.checker_callback,
737
data=command))
738
# The checker may have completed before the gobject
739
# watch was added. Check for this.
740
try:
741
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
742
except OSError as error:
743
if error.errno == errno.ECHILD:
744
# This should never happen
745
logger.error("Child process vanished",
746
exc_info=error)
747
return True
748
raise
749
if pid:
750
gobject.source_remove(self.checker_callback_tag)
751
self.checker_callback(pid, status, command)
764
752
# Re-run this periodically if run by gobject.timeout_add
765
753
return True
766
754
772
760
if getattr(self, "checker", None) is None:
773
761
return
774
762
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
763
try:
764
self.checker.terminate()
765
#time.sleep(0.5)
766
#if self.checker.poll() is None:
767
# self.checker.kill()
768
except OSError as error:
769
if error.errno != errno.ESRCH: # No such process
770
raise
776
771
self.checker = None
777
772
778
773
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
774
def dbus_service_property(dbus_interface, signature="v",
775
access="readwrite", byte_arrays=False):
783
776
"""Decorators for marking methods of a DBusObjectWithProperties to
784
777
become properties on the D-Bus.
785
778
794
787
# "Set" method, so we fail early here:
795
788
if byte_arrays and signature != "ay":
796
789
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
790
" signature {0!r}".format(signature))
799
791
def decorator(func):
800
792
func._dbus_is_property = True
801
793
func._dbus_interface = dbus_interface
806
798
func._dbus_name = func._dbus_name[:-14]
807
799
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
800
return func
809
810
801
return decorator
811
802
812
803
821
812
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
813
"false"}
823
814
"""
824
825
815
def decorator(func):
826
816
func._dbus_is_interface = True
827
817
func._dbus_interface = dbus_interface
828
818
func._dbus_name = dbus_interface
829
819
return func
830
831
820
return decorator
832
821
833
822
835
824
"""Decorator to annotate D-Bus methods, signals or properties
836
825
Usage:
837
826
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
827
@dbus_service_property("org.example.Interface", signature="b",
842
828
access="r")
829
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
830
"org.freedesktop.DBus.Property."
831
"EmitsChangedSignal": "false"})
843
832
def Property_dbus_property(self):
844
833
return dbus.Boolean(False)
845
846
See also the DBusObjectWithAnnotations class.
847
834
"""
848
849
835
def decorator(func):
850
836
func._dbus_annotations = annotations
851
837
return func
852
853
838
return decorator
854
839
855
840
856
841
class DBusPropertyException(dbus.exceptions.DBusException):
857
842
"""A base class for D-Bus property-related exceptions
858
843
"""
859
pass
844
def __unicode__(self):
845
return unicode(str(self))
860
846
861
847
862
848
class DBusPropertyAccessException(DBusPropertyException):
871
857
pass
872
858
873
859
874
class DBusObjectWithAnnotations(dbus.service.Object):
875
"""A D-Bus object with annotations.
860
class DBusObjectWithProperties(dbus.service.Object):
861
"""A D-Bus object with properties.
876
862
877
Classes inheriting from this can use the dbus_annotations
878
decorator to add annotations to methods or signals.
863
Classes inheriting from this can use the dbus_service_property
864
decorator to expose methods as D-Bus properties. It exposes the
865
standard Get(), Set(), and GetAll() methods on the D-Bus.
879
866
"""
880
867
881
868
@staticmethod
885
872
If called like _is_dbus_thing("method") it returns a function
886
873
suitable for use as predicate to inspect.getmembers().
887
874
"""
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
875
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
889
876
False)
890
877
891
878
def _get_all_dbus_things(self, thing):
892
879
"""Returns a generator of (name, attribute) pairs
893
880
"""
894
return ((getattr(athing.__get__(self), "_dbus_name", name),
881
return ((getattr(athing.__get__(self), "_dbus_name",
882
name),
895
883
athing.__get__(self))
896
884
for cls in self.__class__.__mro__
897
885
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
"""
886
inspect.getmembers(cls,
887
self._is_dbus_thing(thing)))
970
888
971
889
def _get_dbus_property(self, interface_name, property_name):
972
890
"""Returns a bound method if one exists which is a D-Bus
973
891
property with the specified name and interface.
974
892
"""
975
for cls in self.__class__.__mro__:
976
for name, value in inspect.getmembers(
977
cls, self._is_dbus_thing("property")):
893
for cls in self.__class__.__mro__:
894
for name, value in (inspect.getmembers
895
(cls,
896
self._is_dbus_thing("property"))):
978
897
if (value._dbus_name == property_name
979
898
and value._dbus_interface == interface_name):
980
899
return value.__get__(self)
981
900
982
901
# 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",
902
raise DBusPropertyNotFound(self.dbus_object_path + ":"
903
+ interface_name + "."
904
+ property_name)
905
906
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
997
907
out_signature="v")
998
908
def Get(self, interface_name, property_name):
999
909
"""Standard D-Bus property Get() method, see D-Bus standard.
1017
927
# The byte_arrays option is not supported yet on
1018
928
# signatures other than "ay".
1019
929
if prop._dbus_signature != "ay":
1020
raise ValueError("Byte arrays not supported for non-"
1021
"'ay' signature {!r}"
1022
.format(prop._dbus_signature))
930
raise ValueError
1023
931
value = dbus.ByteArray(b''.join(chr(byte)
1024
932
for byte in value))
1025
933
prop(value)
1026
934
1027
@dbus.service.method(dbus.PROPERTIES_IFACE,
1028
in_signature="s",
935
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1029
936
out_signature="a{sv}")
1030
937
def GetAll(self, interface_name):
1031
938
"""Standard D-Bus property GetAll() method, see D-Bus
1046
953
if not hasattr(value, "variant_level"):
1047
954
properties[name] = value
1048
955
continue
1049
properties[name] = type(value)(
1050
value, variant_level = value.variant_level + 1)
956
properties[name] = type(value)(value, variant_level=
957
value.variant_level+1)
1051
958
return dbus.Dictionary(properties, signature="sv")
1052
959
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
960
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1062
961
out_signature="s",
1063
962
path_keyword='object_path',
1067
966
1068
967
Inserts property tags and interface annotation tags.
1069
968
"""
1070
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1071
object_path,
1072
connection)
969
xmlstring = dbus.service.Object.Introspect(self, object_path,
970
connection)
1073
971
try:
1074
972
document = xml.dom.minidom.parseString(xmlstring)
1075
1076
973
def make_tag(document, name, prop):
1077
974
e = document.createElement("property")
1078
975
e.setAttribute("name", name)
1079
976
e.setAttribute("type", prop._dbus_signature)
1080
977
e.setAttribute("access", prop._dbus_access)
1081
978
return e
1082
1083
979
for if_tag in document.getElementsByTagName("interface"):
1084
980
# Add property tags
1085
981
for tag in (make_tag(document, name, prop)
1088
984
if prop._dbus_interface
1089
985
== if_tag.getAttribute("name")):
1090
986
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)
987
# Add annotation tags
988
for typ in ("method", "signal", "property"):
989
for tag in if_tag.getElementsByTagName(typ):
990
annots = dict()
991
for name, prop in (self.
992
_get_all_dbus_things(typ)):
993
if (name == tag.getAttribute("name")
994
and prop._dbus_interface
995
== if_tag.getAttribute("name")):
996
annots.update(getattr
997
(prop,
998
"_dbus_annotations",
999
{}))
1000
for name, value in annots.iteritems():
1001
ann_tag = document.createElement(
1002
"annotation")
1003
ann_tag.setAttribute("name", name)
1004
ann_tag.setAttribute("value", value)
1005
tag.appendChild(ann_tag)
1006
# Add interface annotation tags
1007
for annotation, value in dict(
1008
itertools.chain.from_iterable(
1009
annotations().iteritems()
1010
for name, annotations in
1011
self._get_all_dbus_things("interface")
1012
if name == if_tag.getAttribute("name")
1013
)).iteritems():
1014
ann_tag = document.createElement("annotation")
1015
ann_tag.setAttribute("name", annotation)
1016
ann_tag.setAttribute("value", value)
1017
if_tag.appendChild(ann_tag)
1107
1018
# Add the names to the return values for the
1108
1019
# "org.freedesktop.DBus.Properties" methods
1109
1020
if (if_tag.getAttribute("name")
1127
1038
exc_info=error)
1128
1039
return xmlstring
1129
1040
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
1041
1199
1042
def datetime_to_dbus(dt, variant_level=0):
1200
1043
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1201
1044
if dt is None:
1202
1045
return dbus.String("", variant_level = variant_level)
1203
return dbus.String(dt.isoformat(), variant_level=variant_level)
1046
return dbus.String(dt.isoformat(),
1047
variant_level=variant_level)
1204
1048
1205
1049
1206
1050
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1226
1070
(from DBusObjectWithProperties) and interfaces (from the
1227
1071
dbus_interface_annotations decorator).
1228
1072
"""
1229
1230
1073
def wrapper(cls):
1231
1074
for orig_interface_name, alt_interface_name in (
1232
alt_interface_names.items()):
1075
alt_interface_names.iteritems()):
1233
1076
attr = {}
1234
1077
interface_names = set()
1235
1078
# Go though all attributes of the class
1237
1080
# Ignore non-D-Bus attributes, and D-Bus attributes
1238
1081
# with the wrong interface name
1239
1082
if (not hasattr(attribute, "_dbus_interface")
1240
or not attribute._dbus_interface.startswith(
1241
orig_interface_name)):
1083
or not attribute._dbus_interface
1084
.startswith(orig_interface_name)):
1242
1085
continue
1243
1086
# Create an alternate D-Bus interface name based on
1244
1087
# the current name
1245
alt_interface = attribute._dbus_interface.replace(
1246
orig_interface_name, alt_interface_name)
1088
alt_interface = (attribute._dbus_interface
1089
.replace(orig_interface_name,
1090
alt_interface_name))
1247
1091
interface_names.add(alt_interface)
1248
1092
# Is this a D-Bus signal?
1249
1093
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(
1094
# Extract the original non-method undecorated
1095
# function by black magic
1096
nonmethod_func = (dict(
1254
1097
zip(attribute.func_code.co_freevars,
1255
attribute.__closure__))
1256
["func"].cell_contents)
1257
else:
1258
nonmethod_func = attribute
1098
attribute.__closure__))["func"]
1099
.cell_contents)
1259
1100
# Create a new, but exactly alike, function
1260
1101
# object, and decorate it to be a new D-Bus signal
1261
1102
# 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))
1103
new_function = (dbus.service.signal
1104
(alt_interface,
1105
attribute._dbus_signature)
1106
(types.FunctionType(
1107
nonmethod_func.func_code,
1108
nonmethod_func.func_globals,
1109
nonmethod_func.func_name,
1110
nonmethod_func.func_defaults,
1111
nonmethod_func.func_closure)))
1279
1112
# Copy annotations, if any
1280
1113
try:
1281
new_function._dbus_annotations = dict(
1282
attribute._dbus_annotations)
1114
new_function._dbus_annotations = (
1115
dict(attribute._dbus_annotations))
1283
1116
except AttributeError:
1284
1117
pass
1285
1118
# Define a creator of a function to call both the
1290
1123
"""This function is a scope container to pass
1291
1124
func1 and func2 to the "call_both" function
1292
1125
outside of its arguments"""
1293
1294
@functools.wraps(func2)
1295
1126
def call_both(*args, **kwargs):
1296
1127
"""This function will emit two D-Bus
1297
1128
signals by calling func1 and func2"""
1298
1129
func1(*args, **kwargs)
1299
1130
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
1131
return call_both
1306
1132
# Create the "call_both" function and add it to
1307
1133
# the class
1312
1138
# object. Decorate it to be a new D-Bus method
1313
1139
# with the alternate D-Bus interface name. Add it
1314
1140
# 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)))
1141
attr[attrname] = (dbus.service.method
1142
(alt_interface,
1143
attribute._dbus_in_signature,
1144
attribute._dbus_out_signature)
1145
(types.FunctionType
1146
(attribute.func_code,
1147
attribute.func_globals,
1148
attribute.func_name,
1149
attribute.func_defaults,
1150
attribute.func_closure)))
1325
1151
# Copy annotations, if any
1326
1152
try:
1327
attr[attrname]._dbus_annotations = dict(
1328
attribute._dbus_annotations)
1153
attr[attrname]._dbus_annotations = (
1154
dict(attribute._dbus_annotations))
1329
1155
except AttributeError:
1330
1156
pass
1331
1157
# Is this a D-Bus property?
1334
1160
# object, and decorate it to be a new D-Bus
1335
1161
# property with the alternate D-Bus interface
1336
1162
# 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)))
1163
attr[attrname] = (dbus_service_property
1164
(alt_interface,
1165
attribute._dbus_signature,
1166
attribute._dbus_access,
1167
attribute
1168
._dbus_get_args_options
1169
["byte_arrays"])
1170
(types.FunctionType
1171
(attribute.func_code,
1172
attribute.func_globals,
1173
attribute.func_name,
1174
attribute.func_defaults,
1175
attribute.func_closure)))
1348
1176
# Copy annotations, if any
1349
1177
try:
1350
attr[attrname]._dbus_annotations = dict(
1351
attribute._dbus_annotations)
1178
attr[attrname]._dbus_annotations = (
1179
dict(attribute._dbus_annotations))
1352
1180
except AttributeError:
1353
1181
pass
1354
1182
# Is this a D-Bus interface?
1357
1185
# object. Decorate it to be a new D-Bus interface
1358
1186
# with the alternate D-Bus interface name. Add it
1359
1187
# 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)))
1188
attr[attrname] = (dbus_interface_annotations
1189
(alt_interface)
1190
(types.FunctionType
1191
(attribute.func_code,
1192
attribute.func_globals,
1193
attribute.func_name,
1194
attribute.func_defaults,
1195
attribute.func_closure)))
1367
1196
if deprecate:
1368
1197
# Deprecate all alternate interfaces
1369
iname="_AlternateDBusNames_interface_annotation{}"
1198
iname="_AlternateDBusNames_interface_annotation{0}"
1370
1199
for interface_name in interface_names:
1371
1372
1200
@dbus_interface_annotations(interface_name)
1373
1201
def func(self):
1374
1202
return { "org.freedesktop.DBus.Deprecated":
1375
"true" }
1203
"true" }
1376
1204
# Find an unused name
1377
1205
for aname in (iname.format(i)
1378
1206
for i in itertools.count()):
1382
1210
if interface_names:
1383
1211
# Replace the class with a new subclass of it with
1384
1212
# methods, signals, etc. as created above.
1385
cls = type(b"{}Alternate".format(cls.__name__),
1386
(cls, ), attr)
1213
cls = type(b"{0}Alternate".format(cls.__name__),
1214
(cls,), attr)
1387
1215
return cls
1388
1389
1216
return wrapper
1390
1217
1391
1218
1392
1219
@alternate_dbus_interfaces({"se.recompile.Mandos":
1393
"se.bsnet.fukt.Mandos"})
1220
"se.bsnet.fukt.Mandos"})
1394
1221
class ClientDBus(Client, DBusObjectWithProperties):
1395
1222
"""A Client class using D-Bus
1396
1223
1400
1227
"""
1401
1228
1402
1229
runtime_expansions = (Client.runtime_expansions
1403
+ ("dbus_object_path", ))
1404
1405
_interface = "se.recompile.Mandos.Client"
1230
+ ("dbus_object_path",))
1406
1231
1407
1232
# dbus.service.Object doesn't use super(), so we can't either.
1408
1233
1411
1236
Client.__init__(self, *args, **kwargs)
1412
1237
# Only now, when this client is initialized, can it show up on
1413
1238
# the D-Bus
1414
client_object_name = str(self.name).translate(
1239
client_object_name = unicode(self.name).translate(
1415
1240
{ord("."): ord("_"),
1416
1241
ord("-"): ord("_")})
1417
self.dbus_object_path = dbus.ObjectPath(
1418
"/clients/" + client_object_name)
1242
self.dbus_object_path = (dbus.ObjectPath
1243
("/clients/" + client_object_name))
1419
1244
DBusObjectWithProperties.__init__(self, self.bus,
1420
1245
self.dbus_object_path)
1421
1246
1422
def notifychangeproperty(transform_func, dbus_name,
1423
type_func=lambda x: x,
1424
variant_level=1,
1425
invalidate_only=False,
1426
_interface=_interface):
1247
def notifychangeproperty(transform_func,
1248
dbus_name, type_func=lambda x: x,
1249
variant_level=1):
1427
1250
""" Modify a variable so that it's a property which announces
1428
1251
its changes to DBus.
1429
1252
1434
1257
to the D-Bus. Default: no transform
1435
1258
variant_level: D-Bus variant level. Default: 1
1436
1259
"""
1437
attrname = "_{}".format(dbus_name)
1438
1260
attrname = "_{0}".format(dbus_name)
1439
1261
def setter(self, value):
1440
1262
if hasattr(self, "dbus_object_path"):
1441
1263
if (not hasattr(self, attrname) or
1442
1264
type_func(getattr(self, attrname, None))
1443
1265
!= 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())
1266
dbus_value = transform_func(type_func(value),
1267
variant_level
1268
=variant_level)
1269
self.PropertyChanged(dbus.String(dbus_name),
1270
dbus_value)
1459
1271
setattr(self, attrname, value)
1460
1272
1461
1273
return property(lambda self: getattr(self, attrname), setter)
1467
1279
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1468
1280
last_enabled = notifychangeproperty(datetime_to_dbus,
1469
1281
"LastEnabled")
1470
checker = notifychangeproperty(
1471
dbus.Boolean, "CheckerRunning",
1472
type_func = lambda checker: checker is not None)
1282
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1283
type_func = lambda checker:
1284
checker is not None)
1473
1285
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1474
1286
"LastCheckedOK")
1475
1287
last_checker_status = notifychangeproperty(dbus.Int16,
1478
1290
datetime_to_dbus, "LastApprovalRequest")
1479
1291
approved_by_default = notifychangeproperty(dbus.Boolean,
1480
1292
"ApprovedByDefault")
1481
approval_delay = notifychangeproperty(
1482
dbus.UInt64, "ApprovalDelay",
1483
type_func = lambda td: td.total_seconds() * 1000)
1293
approval_delay = notifychangeproperty(dbus.UInt64,
1294
"ApprovalDelay",
1295
type_func =
1296
timedelta_to_milliseconds)
1484
1297
approval_duration = notifychangeproperty(
1485
1298
dbus.UInt64, "ApprovalDuration",
1486
type_func = lambda td: td.total_seconds() * 1000)
1299
type_func = timedelta_to_milliseconds)
1487
1300
host = notifychangeproperty(dbus.String, "Host")
1488
timeout = notifychangeproperty(
1489
dbus.UInt64, "Timeout",
1490
type_func = lambda td: td.total_seconds() * 1000)
1301
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1302
type_func =
1303
timedelta_to_milliseconds)
1491
1304
extended_timeout = notifychangeproperty(
1492
1305
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)
1306
type_func = timedelta_to_milliseconds)
1307
interval = notifychangeproperty(dbus.UInt64,
1308
"Interval",
1309
type_func =
1310
timedelta_to_milliseconds)
1497
1311
checker_command = notifychangeproperty(dbus.String, "Checker")
1498
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1499
invalidate_only=True)
1500
1312
1501
1313
del notifychangeproperty
1502
1314
1509
1321
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1510
1322
Client.__del__(self, *args, **kwargs)
1511
1323
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:
1324
def checker_callback(self, pid, condition, command,
1325
*args, **kwargs):
1326
self.checker_callback_tag = None
1327
self.checker = None
1328
if os.WIFEXITED(condition):
1329
exitstatus = os.WEXITSTATUS(condition)
1519
1330
# Emit D-Bus signal
1520
1331
self.CheckerCompleted(dbus.Int16(exitstatus),
1521
# This is specific to GNU libC
1522
dbus.Int64(exitstatus << 8),
1332
dbus.Int64(condition),
1523
1333
dbus.String(command))
1524
1334
else:
1525
1335
# Emit D-Bus signal
1526
1336
self.CheckerCompleted(dbus.Int16(-1),
1527
dbus.Int64(
1528
# This is specific to GNU libC
1529
(exitstatus << 8)
1530
| self.last_checker_signal),
1337
dbus.Int64(condition),
1531
1338
dbus.String(command))
1532
return ret
1339
1340
return Client.checker_callback(self, pid, condition, command,
1341
*args, **kwargs)
1533
1342
1534
1343
def start_checker(self, *args, **kwargs):
1535
old_checker_pid = getattr(self.checker, "pid", None)
1344
old_checker = self.checker
1345
if self.checker is not None:
1346
old_checker_pid = self.checker.pid
1347
else:
1348
old_checker_pid = None
1536
1349
r = Client.start_checker(self, *args, **kwargs)
1537
1350
# Only if new checker process was started
1538
1351
if (self.checker is not None
1547
1360
1548
1361
def approve(self, value=True):
1549
1362
self.approved = value
1550
gobject.timeout_add(int(self.approval_duration.total_seconds()
1551
* 1000), self._reset_approved)
1363
gobject.timeout_add(timedelta_to_milliseconds
1364
(self.approval_duration),
1365
self._reset_approved)
1552
1366
self.send_changedstate()
1553
1367
1554
1368
## D-Bus methods, signals & properties
1369
_interface = "se.recompile.Mandos.Client"
1555
1370
1556
1371
## Interfaces
1557
1372
1373
@dbus_interface_annotations(_interface)
1374
def _foo(self):
1375
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1376
"false"}
1377
1558
1378
## Signals
1559
1379
1560
1380
# CheckerCompleted - signal
1570
1390
pass
1571
1391
1572
1392
# PropertyChanged - signal
1573
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1574
1393
@dbus.service.signal(_interface, signature="sv")
1575
1394
def PropertyChanged(self, property, value):
1576
1395
"D-Bus signal"
1610
1429
self.checked_ok()
1611
1430
1612
1431
# Enable - method
1613
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1614
1432
@dbus.service.method(_interface)
1615
1433
def Enable(self):
1616
1434
"D-Bus method"
1617
1435
self.enable()
1618
1436
1619
1437
# StartChecker - method
1620
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1621
1438
@dbus.service.method(_interface)
1622
1439
def StartChecker(self):
1623
1440
"D-Bus method"
1624
1441
self.start_checker()
1625
1442
1626
1443
# Disable - method
1627
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1628
1444
@dbus.service.method(_interface)
1629
1445
def Disable(self):
1630
1446
"D-Bus method"
1631
1447
self.disable()
1632
1448
1633
1449
# StopChecker - method
1634
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1635
1450
@dbus.service.method(_interface)
1636
1451
def StopChecker(self):
1637
1452
self.stop_checker()
1644
1459
return dbus.Boolean(bool(self.approvals_pending))
1645
1460
1646
1461
# ApprovedByDefault - property
1647
@dbus_service_property(_interface,
1648
signature="b",
1462
@dbus_service_property(_interface, signature="b",
1649
1463
access="readwrite")
1650
1464
def ApprovedByDefault_dbus_property(self, value=None):
1651
1465
if value is None: # get
1653
1467
self.approved_by_default = bool(value)
1654
1468
1655
1469
# ApprovalDelay - property
1656
@dbus_service_property(_interface,
1657
signature="t",
1470
@dbus_service_property(_interface, signature="t",
1658
1471
access="readwrite")
1659
1472
def ApprovalDelay_dbus_property(self, value=None):
1660
1473
if value is None: # get
1661
return dbus.UInt64(self.approval_delay.total_seconds()
1662
* 1000)
1474
return dbus.UInt64(self.approval_delay_milliseconds())
1663
1475
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1664
1476
1665
1477
# ApprovalDuration - property
1666
@dbus_service_property(_interface,
1667
signature="t",
1478
@dbus_service_property(_interface, signature="t",
1668
1479
access="readwrite")
1669
1480
def ApprovalDuration_dbus_property(self, value=None):
1670
1481
if value is None: # get
1671
return dbus.UInt64(self.approval_duration.total_seconds()
1672
* 1000)
1482
return dbus.UInt64(timedelta_to_milliseconds(
1483
self.approval_duration))
1673
1484
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1674
1485
1675
1486
# Name - property
1676
@dbus_annotations(
1677
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1678
1487
@dbus_service_property(_interface, signature="s", access="read")
1679
1488
def Name_dbus_property(self):
1680
1489
return dbus.String(self.name)
1681
1490
1682
1491
# Fingerprint - property
1683
@dbus_annotations(
1684
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1685
1492
@dbus_service_property(_interface, signature="s", access="read")
1686
1493
def Fingerprint_dbus_property(self):
1687
1494
return dbus.String(self.fingerprint)
1688
1495
1689
1496
# Host - property
1690
@dbus_service_property(_interface,
1691
signature="s",
1497
@dbus_service_property(_interface, signature="s",
1692
1498
access="readwrite")
1693
1499
def Host_dbus_property(self, value=None):
1694
1500
if value is None: # get
1695
1501
return dbus.String(self.host)
1696
self.host = str(value)
1502
self.host = unicode(value)
1697
1503
1698
1504
# Created - property
1699
@dbus_annotations(
1700
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1701
1505
@dbus_service_property(_interface, signature="s", access="read")
1702
1506
def Created_dbus_property(self):
1703
1507
return datetime_to_dbus(self.created)
1708
1512
return datetime_to_dbus(self.last_enabled)
1709
1513
1710
1514
# Enabled - property
1711
@dbus_service_property(_interface,
1712
signature="b",
1515
@dbus_service_property(_interface, signature="b",
1713
1516
access="readwrite")
1714
1517
def Enabled_dbus_property(self, value=None):
1715
1518
if value is None: # get
1720
1523
self.disable()
1721
1524
1722
1525
# LastCheckedOK - property
1723
@dbus_service_property(_interface,
1724
signature="s",
1526
@dbus_service_property(_interface, signature="s",
1725
1527
access="readwrite")
1726
1528
def LastCheckedOK_dbus_property(self, value=None):
1727
1529
if value is not None:
1730
1532
return datetime_to_dbus(self.last_checked_ok)
1731
1533
1732
1534
# LastCheckerStatus - property
1733
@dbus_service_property(_interface, signature="n", access="read")
1535
@dbus_service_property(_interface, signature="n",
1536
access="read")
1734
1537
def LastCheckerStatus_dbus_property(self):
1735
1538
return dbus.Int16(self.last_checker_status)
1736
1539
1745
1548
return datetime_to_dbus(self.last_approval_request)
1746
1549
1747
1550
# Timeout - property
1748
@dbus_service_property(_interface,
1749
signature="t",
1551
@dbus_service_property(_interface, signature="t",
1750
1552
access="readwrite")
1751
1553
def Timeout_dbus_property(self, value=None):
1752
1554
if value is None: # get
1753
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1555
return dbus.UInt64(self.timeout_milliseconds())
1754
1556
old_timeout = self.timeout
1755
1557
self.timeout = datetime.timedelta(0, 0, 0, value)
1756
1558
# Reschedule disabling
1765
1567
is None):
1766
1568
return
1767
1569
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)
1570
self.disable_initiator_tag = (
1571
gobject.timeout_add(
1572
timedelta_to_milliseconds(self.expires - now),
1573
self.disable))
1771
1574
1772
1575
# ExtendedTimeout - property
1773
@dbus_service_property(_interface,
1774
signature="t",
1576
@dbus_service_property(_interface, signature="t",
1775
1577
access="readwrite")
1776
1578
def ExtendedTimeout_dbus_property(self, value=None):
1777
1579
if value is None: # get
1778
return dbus.UInt64(self.extended_timeout.total_seconds()
1779
* 1000)
1580
return dbus.UInt64(self.extended_timeout_milliseconds())
1780
1581
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1781
1582
1782
1583
# Interval - property
1783
@dbus_service_property(_interface,
1784
signature="t",
1584
@dbus_service_property(_interface, signature="t",
1785
1585
access="readwrite")
1786
1586
def Interval_dbus_property(self, value=None):
1787
1587
if value is None: # get
1788
return dbus.UInt64(self.interval.total_seconds() * 1000)
1588
return dbus.UInt64(self.interval_milliseconds())
1789
1589
self.interval = datetime.timedelta(0, 0, 0, value)
1790
1590
if getattr(self, "checker_initiator_tag", None) is None:
1791
1591
return
1792
1592
if self.enabled:
1793
1593
# Reschedule checker run
1794
1594
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
1595
self.checker_initiator_tag = (gobject.timeout_add
1596
(value, self.start_checker))
1597
self.start_checker() # Start one now, too
1798
1598
1799
1599
# Checker - property
1800
@dbus_service_property(_interface,
1801
signature="s",
1600
@dbus_service_property(_interface, signature="s",
1802
1601
access="readwrite")
1803
1602
def Checker_dbus_property(self, value=None):
1804
1603
if value is None: # get
1805
1604
return dbus.String(self.checker_command)
1806
self.checker_command = str(value)
1605
self.checker_command = unicode(value)
1807
1606
1808
1607
# CheckerRunning - property
1809
@dbus_service_property(_interface,
1810
signature="b",
1608
@dbus_service_property(_interface, signature="b",
1811
1609
access="readwrite")
1812
1610
def CheckerRunning_dbus_property(self, value=None):
1813
1611
if value is None: # get
1818
1616
self.stop_checker()
1819
1617
1820
1618
# ObjectPath - property
1821
@dbus_annotations(
1822
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1823
"org.freedesktop.DBus.Deprecated": "true"})
1824
1619
@dbus_service_property(_interface, signature="o", access="read")
1825
1620
def ObjectPath_dbus_property(self):
1826
1621
return self.dbus_object_path # is already a dbus.ObjectPath
1827
1622
1828
1623
# 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)
1624
@dbus_service_property(_interface, signature="ay",
1625
access="write", byte_arrays=True)
1836
1626
def Secret_dbus_property(self, value):
1837
self.secret = bytes(value)
1627
self.secret = str(value)
1838
1628
1839
1629
del _interface
1840
1630
1844
1634
self._pipe = child_pipe
1845
1635
self._pipe.send(('init', fpr, address))
1846
1636
if not self._pipe.recv():
1847
raise KeyError(fpr)
1637
raise KeyError()
1848
1638
1849
1639
def __getattribute__(self, name):
1850
1640
if name == '_pipe':
1854
1644
if data[0] == 'data':
1855
1645
return data[1]
1856
1646
if data[0] == 'function':
1857
1858
1647
def func(*args, **kwargs):
1859
1648
self._pipe.send(('funcall', name, args, kwargs))
1860
1649
return self._pipe.recv()[1]
1861
1862
1650
return func
1863
1651
1864
1652
def __setattr__(self, name, value):
1876
1664
def handle(self):
1877
1665
with contextlib.closing(self.server.child_pipe) as child_pipe:
1878
1666
logger.info("TCP connection from: %s",
1879
str(self.client_address))
1667
unicode(self.client_address))
1880
1668
logger.debug("Pipe FD: %d",
1881
1669
self.server.child_pipe.fileno())
1882
1670
1883
session = gnutls.connection.ClientSession(
1884
self.request, gnutls.connection .X509Credentials())
1671
session = (gnutls.connection
1672
.ClientSession(self.request,
1673
gnutls.connection
1674
.X509Credentials()))
1885
1675
1886
1676
# Note: gnutls.connection.X509Credentials is really a
1887
1677
# generic GnuTLS certificate credentials object so long as
1896
1686
priority = self.server.gnutls_priority
1897
1687
if priority is None:
1898
1688
priority = "NORMAL"
1899
gnutls.library.functions.gnutls_priority_set_direct(
1900
session._c_object, priority, None)
1689
(gnutls.library.functions
1690
.gnutls_priority_set_direct(session._c_object,
1691
priority, None))
1901
1692
1902
1693
# Start communication using the Mandos protocol
1903
1694
# Get protocol number
1905
1696
logger.debug("Protocol version: %r", line)
1906
1697
try:
1907
1698
if int(line.strip().split()[0]) > 1:
1908
raise RuntimeError(line)
1699
raise RuntimeError
1909
1700
except (ValueError, IndexError, RuntimeError) as error:
1910
1701
logger.error("Unknown protocol version: %s", error)
1911
1702
return
1923
1714
approval_required = False
1924
1715
try:
1925
1716
try:
1926
fpr = self.fingerprint(
1927
self.peer_certificate(session))
1717
fpr = self.fingerprint(self.peer_certificate
1718
(session))
1928
1719
except (TypeError,
1929
1720
gnutls.errors.GNUTLSError) as error:
1930
1721
logger.warning("Bad certificate: %s", error)
1945
1736
while True:
1946
1737
if not client.enabled:
1947
1738
logger.info("Client %s is disabled",
1948
client.name)
1739
client.name)
1949
1740
if self.server.use_dbus:
1950
1741
# Emit D-Bus signal
1951
1742
client.Rejected("Disabled")
1960
1751
if self.server.use_dbus:
1961
1752
# Emit D-Bus signal
1962
1753
client.NeedApproval(
1963
client.approval_delay.total_seconds()
1964
* 1000, client.approved_by_default)
1754
client.approval_delay_milliseconds(),
1755
client.approved_by_default)
1965
1756
else:
1966
1757
logger.warning("Client %s was not approved",
1967
1758
client.name)
1973
1764
#wait until timeout or approved
1974
1765
time = datetime.datetime.now()
1975
1766
client.changedstate.acquire()
1976
client.changedstate.wait(delay.total_seconds())
1767
client.changedstate.wait(
1768
float(timedelta_to_milliseconds(delay)
1769
/ 1000))
1977
1770
client.changedstate.release()
1978
1771
time2 = datetime.datetime.now()
1979
1772
if (time2 - time) >= delay:
1998
1791
logger.warning("gnutls send failed",
1999
1792
exc_info=error)
2000
1793
return
2001
logger.debug("Sent: %d, remaining: %d", sent,
2002
len(client.secret) - (sent_size
2003
+ sent))
1794
logger.debug("Sent: %d, remaining: %d",
1795
sent, len(client.secret)
1796
- (sent_size + sent))
2004
1797
sent_size += sent
2005
1798
2006
1799
logger.info("Sending secret to %s", client.name)
2023
1816
def peer_certificate(session):
2024
1817
"Return the peer's OpenPGP certificate as a bytestring"
2025
1818
# If not an OpenPGP certificate...
2026
if (gnutls.library.functions.gnutls_certificate_type_get(
2027
session._c_object)
1819
if (gnutls.library.functions
1820
.gnutls_certificate_type_get(session._c_object)
2028
1821
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2029
1822
# ...do the normal thing
2030
1823
return session.peer_certificate
2044
1837
def fingerprint(openpgp):
2045
1838
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2046
1839
# 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)))
1840
datum = (gnutls.library.types
1841
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1842
ctypes.POINTER
1843
(ctypes.c_ubyte)),
1844
ctypes.c_uint(len(openpgp))))
2051
1845
# New empty GnuTLS certificate
2052
1846
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2053
gnutls.library.functions.gnutls_openpgp_crt_init(
2054
ctypes.byref(crt))
1847
(gnutls.library.functions
1848
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2055
1849
# 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)
1850
(gnutls.library.functions
1851
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1852
gnutls.library.constants
1853
.GNUTLS_OPENPGP_FMT_RAW))
2059
1854
# Verify the self signature in the key
2060
1855
crtverify = ctypes.c_uint()
2061
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2062
crt, 0, ctypes.byref(crtverify))
1856
(gnutls.library.functions
1857
.gnutls_openpgp_crt_verify_self(crt, 0,
1858
ctypes.byref(crtverify)))
2063
1859
if crtverify.value != 0:
2064
1860
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2065
raise gnutls.errors.CertificateSecurityError(
2066
"Verify failed")
1861
raise (gnutls.errors.CertificateSecurityError
1862
("Verify failed"))
2067
1863
# New buffer for the fingerprint
2068
1864
buf = ctypes.create_string_buffer(20)
2069
1865
buf_len = ctypes.c_size_t()
2070
1866
# 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))
1867
(gnutls.library.functions
1868
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1869
ctypes.byref(buf_len)))
2073
1870
# Deinit the certificate
2074
1871
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2075
1872
# Convert the buffer to a Python bytestring
2081
1878
2082
1879
class MultiprocessingMixIn(object):
2083
1880
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2084
2085
1881
def sub_process_main(self, request, address):
2086
1882
try:
2087
1883
self.finish_request(request, address)
2099
1895
2100
1896
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2101
1897
""" adds a pipe to the MixIn """
2102
2103
1898
def process_request(self, request, client_address):
2104
1899
"""Overrides and wraps the original process_request().
2105
1900
2114
1909
2115
1910
def add_pipe(self, parent_pipe, proc):
2116
1911
"""Dummy function; override as necessary"""
2117
raise NotImplementedError()
1912
raise NotImplementedError
2118
1913
2119
1914
2120
1915
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2126
1921
interface: None or a network interface name (string)
2127
1922
use_ipv6: Boolean; to use IPv6 or not
2128
1923
"""
2129
2130
1924
def __init__(self, server_address, RequestHandlerClass,
2131
interface=None,
2132
use_ipv6=True,
2133
socketfd=None):
1925
interface=None, use_ipv6=True, socketfd=None):
2134
1926
"""If socketfd is set, use that file descriptor instead of
2135
1927
creating a new one with socket.socket().
2136
1928
"""
2177
1969
self.interface)
2178
1970
else:
2179
1971
try:
2180
self.socket.setsockopt(
2181
socket.SOL_SOCKET, SO_BINDTODEVICE,
2182
(self.interface + "\0").encode("utf-8"))
1972
self.socket.setsockopt(socket.SOL_SOCKET,
1973
SO_BINDTODEVICE,
1974
str(self.interface + '\0'))
2183
1975
except socket.error as error:
2184
1976
if error.errno == errno.EPERM:
2185
1977
logger.error("No permission to bind to"
2203
1995
self.server_address = (any_address,
2204
1996
self.server_address[1])
2205
1997
elif not self.server_address[1]:
2206
self.server_address = (self.server_address[0], 0)
1998
self.server_address = (self.server_address[0],
1999
0)
2207
2000
# if self.interface:
2208
2001
# self.server_address = (self.server_address[0],
2209
2002
# 0, # port
2223
2016
2224
2017
Assumes a gobject.MainLoop event loop.
2225
2018
"""
2226
2227
2019
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):
2020
interface=None, use_ipv6=True, clients=None,
2021
gnutls_priority=None, use_dbus=True, socketfd=None):
2234
2022
self.enabled = False
2235
2023
self.clients = clients
2236
2024
if self.clients is None:
2242
2030
interface = interface,
2243
2031
use_ipv6 = use_ipv6,
2244
2032
socketfd = socketfd)
2245
2246
2033
def server_activate(self):
2247
2034
if self.enabled:
2248
2035
return socketserver.TCPServer.server_activate(self)
2252
2039
2253
2040
def add_pipe(self, parent_pipe, proc):
2254
2041
# 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))
2042
gobject.io_add_watch(parent_pipe.fileno(),
2043
gobject.IO_IN | gobject.IO_HUP,
2044
functools.partial(self.handle_ipc,
2045
parent_pipe =
2046
parent_pipe,
2047
proc = proc))
2261
2048
2262
def handle_ipc(self, source, condition,
2263
parent_pipe=None,
2264
proc = None,
2265
client_object=None):
2049
def handle_ipc(self, source, condition, parent_pipe=None,
2050
proc = None, client_object=None):
2266
2051
# error, or the other end of multiprocessing.Pipe has closed
2267
2052
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2268
2053
# Wait for other process to exit
2291
2076
parent_pipe.send(False)
2292
2077
return False
2293
2078
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))
2079
gobject.io_add_watch(parent_pipe.fileno(),
2080
gobject.IO_IN | gobject.IO_HUP,
2081
functools.partial(self.handle_ipc,
2082
parent_pipe =
2083
parent_pipe,
2084
proc = proc,
2085
client_object =
2086
client))
2301
2087
parent_pipe.send(True)
2302
2088
# remove the old hook in favor of the new above hook on
2303
2089
# same fileno
2309
2095
2310
2096
parent_pipe.send(('data', getattr(client_object,
2311
2097
funcname)(*args,
2312
**kwargs)))
2098
**kwargs)))
2313
2099
2314
2100
if command == 'getattr':
2315
2101
attrname = request[1]
2316
if isinstance(client_object.__getattribute__(attrname),
2317
collections.Callable):
2318
parent_pipe.send(('function', ))
2102
if callable(client_object.__getattribute__(attrname)):
2103
parent_pipe.send(('function',))
2319
2104
else:
2320
parent_pipe.send((
2321
'data', client_object.__getattribute__(attrname)))
2105
parent_pipe.send(('data', client_object
2106
.__getattribute__(attrname)))
2322
2107
2323
2108
if command == 'setattr':
2324
2109
attrname = request[1]
2355
2140
# avoid excessive use of external libraries.
2356
2141
2357
2142
# 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
2143
Token = collections.namedtuple("Token",
2144
("regexp", # To match token; if
2145
# "value" is not None,
2146
# must have a "group"
2147
# containing digits
2148
"value", # datetime.timedelta or
2149
# None
2150
"followers")) # Tokens valid after
2151
# this token
2363
2152
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2364
2153
# the "duration" ABNF definition in RFC 3339, Appendix A.
2365
2154
token_end = Token(re.compile(r"$"), None, frozenset())
2366
2155
token_second = Token(re.compile(r"(\d+)S"),
2367
2156
datetime.timedelta(seconds=1),
2368
frozenset((token_end, )))
2157
frozenset((token_end,)))
2369
2158
token_minute = Token(re.compile(r"(\d+)M"),
2370
2159
datetime.timedelta(minutes=1),
2371
2160
frozenset((token_second, token_end)))
2387
2176
frozenset((token_month, token_end)))
2388
2177
token_week = Token(re.compile(r"(\d+)W"),
2389
2178
datetime.timedelta(weeks=1),
2390
frozenset((token_end, )))
2179
frozenset((token_end,)))
2391
2180
token_duration = Token(re.compile(r"P"), None,
2392
2181
frozenset((token_year, token_month,
2393
2182
token_day, token_time,
2394
token_week)))
2183
token_week))),
2395
2184
# Define starting values
2396
2185
value = datetime.timedelta() # Value so far
2397
2186
found_token = None
2398
followers = frozenset((token_duration, )) # Following valid tokens
2187
followers = frozenset(token_duration,) # Following valid tokens
2399
2188
s = duration # String left to parse
2400
2189
# Loop until end token is found
2401
2190
while found_token is not token_end:
2418
2207
break
2419
2208
else:
2420
2209
# No currently valid tokens were found
2421
raise ValueError("Invalid RFC 3339 duration: {!r}"
2422
.format(duration))
2210
raise ValueError("Invalid RFC 3339 duration")
2423
2211
# End token found
2424
2212
return value
2425
2213
2449
2237
timevalue = datetime.timedelta(0)
2450
2238
for s in interval.split():
2451
2239
try:
2452
suffix = s[-1]
2240
suffix = unicode(s[-1])
2453
2241
value = int(s[:-1])
2454
2242
if suffix == "d":
2455
2243
delta = datetime.timedelta(value)
2462
2250
elif suffix == "w":
2463
2251
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2464
2252
else:
2465
raise ValueError("Unknown suffix {!r}".format(suffix))
2466
except IndexError as e:
2253
raise ValueError("Unknown suffix {0!r}"
2254
.format(suffix))
2255
except (ValueError, IndexError) as e:
2467
2256
raise ValueError(*(e.args))
2468
2257
timevalue += delta
2469
2258
return timevalue
2485
2274
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2486
2275
if not stat.S_ISCHR(os.fstat(null).st_mode):
2487
2276
raise OSError(errno.ENODEV,
2488
"{} not a character device"
2277
"{0} not a character device"
2489
2278
.format(os.devnull))
2490
2279
os.dup2(null, sys.stdin.fileno())
2491
2280
os.dup2(null, sys.stdout.fileno())
2501
2290
2502
2291
parser = argparse.ArgumentParser()
2503
2292
parser.add_argument("-v", "--version", action="version",
2504
version = "%(prog)s {}".format(version),
2293
version = "%(prog)s {0}".format(version),
2505
2294
help="show version number and exit")
2506
2295
parser.add_argument("-i", "--interface", metavar="IF",
2507
2296
help="Bind to interface IF")
2540
2329
help="Directory to save/restore state in")
2541
2330
parser.add_argument("--foreground", action="store_true",
2542
2331
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
2332
2547
2333
options = parser.parse_args()
2548
2334
2549
2335
if options.check:
2550
2336
import doctest
2551
fail_count, test_count = doctest.testmod()
2552
sys.exit(os.EX_OK if fail_count == 0 else 1)
2337
doctest.testmod()
2338
sys.exit()
2553
2339
2554
2340
# Default values for config file for server-global settings
2555
2341
server_defaults = { "interface": "",
2557
2343
"port": "",
2558
2344
"debug": "False",
2559
2345
"priority":
2560
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2561
":+SIGN-DSA-SHA256",
2346
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224",
2562
2347
"servicename": "Mandos",
2563
2348
"use_dbus": "True",
2564
2349
"use_ipv6": "True",
2567
2352
"socket": "",
2568
2353
"statedir": "/var/lib/mandos",
2569
2354
"foreground": "False",
2570
"zeroconf": "True",
2571
}
2355
}
2572
2356
2573
2357
# Parse config file for server-global settings
2574
2358
server_config = configparser.SafeConfigParser(server_defaults)
2575
2359
del server_defaults
2576
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2360
server_config.read(os.path.join(options.configdir,
2361
"mandos.conf"))
2577
2362
# Convert the SafeConfigParser object to a dict
2578
2363
server_settings = server_config.defaults()
2579
2364
# Use the appropriate methods on the non-string config options
2597
2382
# Override the settings from the config file with command line
2598
2383
# options, if set.
2599
2384
for option in ("interface", "address", "port", "debug",
2600
"priority", "servicename", "configdir", "use_dbus",
2601
"use_ipv6", "debuglevel", "restore", "statedir",
2602
"socket", "foreground", "zeroconf"):
2385
"priority", "servicename", "configdir",
2386
"use_dbus", "use_ipv6", "debuglevel", "restore",
2387
"statedir", "socket", "foreground"):
2603
2388
value = getattr(options, option)
2604
2389
if value is not None:
2605
2390
server_settings[option] = value
2606
2391
del options
2607
2392
# Force all strings to be unicode
2608
2393
for option in server_settings.keys():
2609
if isinstance(server_settings[option], bytes):
2610
server_settings[option] = (server_settings[option]
2611
.decode("utf-8"))
2394
if type(server_settings[option]) is str:
2395
server_settings[option] = unicode(server_settings[option])
2612
2396
# Force all boolean options to be boolean
2613
2397
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2614
"foreground", "zeroconf"):
2398
"foreground"):
2615
2399
server_settings[option] = bool(server_settings[option])
2616
2400
# Debug implies foreground
2617
2401
if server_settings["debug"]:
2620
2404
2621
2405
##################################################################
2622
2406
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
2407
# For convenience
2629
2408
debug = server_settings["debug"]
2630
2409
debuglevel = server_settings["debuglevel"]
2633
2412
stored_state_path = os.path.join(server_settings["statedir"],
2634
2413
stored_state_file)
2635
2414
foreground = server_settings["foreground"]
2636
zeroconf = server_settings["zeroconf"]
2637
2415
2638
2416
if debug:
2639
2417
initlogger(debug, logging.DEBUG)
2645
2423
initlogger(debug, level)
2646
2424
2647
2425
if server_settings["servicename"] != "Mandos":
2648
syslogger.setFormatter(
2649
logging.Formatter('Mandos ({}) [%(process)d]:'
2650
' %(levelname)s: %(message)s'.format(
2651
server_settings["servicename"])))
2426
syslogger.setFormatter(logging.Formatter
2427
('Mandos ({0}) [%(process)d]:'
2428
' %(levelname)s: %(message)s'
2429
.format(server_settings
2430
["servicename"])))
2652
2431
2653
2432
# Parse config file with clients
2654
2433
client_config = configparser.SafeConfigParser(Client
2659
2438
global mandos_dbus_service
2660
2439
mandos_dbus_service = None
2661
2440
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)
2441
tcp_server = MandosServer((server_settings["address"],
2442
server_settings["port"]),
2443
ClientHandler,
2444
interface=(server_settings["interface"]
2445
or None),
2446
use_ipv6=use_ipv6,
2447
gnutls_priority=
2448
server_settings["priority"],
2449
use_dbus=use_dbus,
2450
socketfd=(server_settings["socket"]
2451
or None))
2673
2452
if not foreground:
2674
2453
pidfilename = "/run/mandos.pid"
2675
if not os.path.isdir("/run/."):
2676
pidfilename = "/var/run/mandos.pid"
2677
2454
pidfile = None
2678
2455
try:
2679
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2456
pidfile = open(pidfilename, "w")
2680
2457
except IOError as e:
2681
2458
logger.error("Could not open file %r", pidfilename,
2682
2459
exc_info=e)
2696
2473
os.setuid(uid)
2697
2474
except OSError as error:
2698
2475
if error.errno != errno.EPERM:
2699
raise
2476
raise error
2700
2477
2701
2478
if debug:
2702
2479
# Enable all possible GnuTLS debugging
2709
2486
def debug_gnutls(level, string):
2710
2487
logger.debug("GnuTLS: %s", string[:-1])
2711
2488
2712
gnutls.library.functions.gnutls_global_set_log_function(
2713
debug_gnutls)
2489
(gnutls.library.functions
2490
.gnutls_global_set_log_function(debug_gnutls))
2714
2491
2715
2492
# Redirect stdin so all checkers get /dev/null
2716
2493
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2736
2513
if use_dbus:
2737
2514
try:
2738
2515
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:
2516
bus, do_not_queue=True)
2517
old_bus_name = (dbus.service.BusName
2518
("se.bsnet.fukt.Mandos", bus,
2519
do_not_queue=True))
2520
except dbus.exceptions.NameExistsException as e:
2745
2521
logger.error("Disabling D-Bus:", exc_info=e)
2746
2522
use_dbus = False
2747
2523
server_settings["use_dbus"] = False
2748
2524
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"))
2525
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2526
service = AvahiServiceToSyslog(name =
2527
server_settings["servicename"],
2528
servicetype = "_mandos._tcp",
2529
protocol = protocol, bus = bus)
2530
if server_settings["interface"]:
2531
service.interface = (if_nametoindex
2532
(str(server_settings["interface"])))
2759
2533
2760
2534
global multiprocessing_manager
2761
2535
multiprocessing_manager = multiprocessing.Manager()
2780
2554
if server_settings["restore"]:
2781
2555
try:
2782
2556
with open(stored_state_path, "rb") as stored_state:
2783
clients_data, old_client_settings = pickle.load(
2784
stored_state)
2557
clients_data, old_client_settings = (pickle.load
2558
(stored_state))
2785
2559
os.remove(stored_state_path)
2786
2560
except IOError as e:
2787
2561
if e.errno == errno.ENOENT:
2788
logger.warning("Could not load persistent state:"
2789
" {}".format(os.strerror(e.errno)))
2562
logger.warning("Could not load persistent state: {0}"
2563
.format(os.strerror(e.errno)))
2790
2564
else:
2791
2565
logger.critical("Could not load persistent state:",
2792
2566
exc_info=e)
2793
2567
raise
2794
2568
except EOFError as e:
2795
2569
logger.warning("Could not load persistent state: "
2796
"EOFError:",
2797
exc_info=e)
2570
"EOFError:", exc_info=e)
2798
2571
2799
2572
with PGPEngine() as pgp:
2800
for client_name, client in clients_data.items():
2573
for client_name, client in clients_data.iteritems():
2801
2574
# Skip removed clients
2802
2575
if client_name not in client_settings:
2803
2576
continue
2812
2585
# For each value in new config, check if it
2813
2586
# differs from the old config value (Except for
2814
2587
# the "secret" attribute)
2815
if (name != "secret"
2816
and (value !=
2817
old_client_settings[client_name][name])):
2588
if (name != "secret" and
2589
value != old_client_settings[client_name]
2590
[name]):
2818
2591
client[name] = value
2819
2592
except KeyError:
2820
2593
pass
2821
2594
2822
2595
# Clients who has passed its expire date can still be
2823
# enabled if its last checker was successful. A Client
2596
# enabled if its last checker was successful. Clients
2824
2597
# whose checker succeeded before we stored its state is
2825
2598
# assumed to have successfully run all checkers during
2826
2599
# downtime.
2828
2601
if datetime.datetime.utcnow() >= client["expires"]:
2829
2602
if not client["last_checked_ok"]:
2830
2603
logger.warning(
2831
"disabling client {} - Client never "
2832
"performed a successful checker".format(
2833
client_name))
2604
"disabling client {0} - Client never "
2605
"performed a successful checker"
2606
.format(client_name))
2834
2607
client["enabled"] = False
2835
2608
elif client["last_checker_status"] != 0:
2836
2609
logger.warning(
2837
"disabling client {} - Client last"
2838
" checker failed with error code"
2839
" {}".format(
2840
client_name,
2841
client["last_checker_status"]))
2610
"disabling client {0} - Client "
2611
"last checker failed with error code {1}"
2612
.format(client_name,
2613
client["last_checker_status"]))
2842
2614
client["enabled"] = False
2843
2615
else:
2844
client["expires"] = (
2845
datetime.datetime.utcnow()
2846
+ client["timeout"])
2616
client["expires"] = (datetime.datetime
2617
.utcnow()
2618
+ client["timeout"])
2847
2619
logger.debug("Last checker succeeded,"
2848
" keeping {} enabled".format(
2849
client_name))
2620
" keeping {0} enabled"
2621
.format(client_name))
2850
2622
try:
2851
client["secret"] = pgp.decrypt(
2852
client["encrypted_secret"],
2853
client_settings[client_name]["secret"])
2623
client["secret"] = (
2624
pgp.decrypt(client["encrypted_secret"],
2625
client_settings[client_name]
2626
["secret"]))
2854
2627
except PGPError:
2855
2628
# 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"])
2629
logger.debug("Failed to decrypt {0} old secret"
2630
.format(client_name))
2631
client["secret"] = (
2632
client_settings[client_name]["secret"])
2860
2633
2861
2634
# Add/remove clients based on new changes made to config
2862
2635
for client_name in (set(old_client_settings)
2867
2640
clients_data[client_name] = client_settings[client_name]
2868
2641
2869
2642
# Create all client objects
2870
for client_name, client in clients_data.items():
2643
for client_name, client in clients_data.iteritems():
2871
2644
tcp_server.clients[client_name] = client_class(
2872
name = client_name,
2873
settings = client,
2645
name = client_name, settings = client,
2874
2646
server_settings = server_settings)
2875
2647
2876
2648
if not tcp_server.clients:
2878
2650
2879
2651
if not foreground:
2880
2652
if pidfile is not None:
2881
pid = os.getpid()
2882
2653
try:
2883
2654
with pidfile:
2884
print(pid, file=pidfile)
2655
pid = os.getpid()
2656
pidfile.write(str(pid) + "\n".encode("utf-8"))
2885
2657
except IOError:
2886
2658
logger.error("Could not write to file %r with PID %d",
2887
2659
pidfilename, pid)
2892
2664
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2893
2665
2894
2666
if use_dbus:
2895
2896
@alternate_dbus_interfaces(
2897
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2898
class MandosDBusService(DBusObjectWithObjectManager):
2667
@alternate_dbus_interfaces({"se.recompile.Mandos":
2668
"se.bsnet.fukt.Mandos"})
2669
class MandosDBusService(DBusObjectWithProperties):
2899
2670
"""A D-Bus proxy object"""
2900
2901
2671
def __init__(self):
2902
2672
dbus.service.Object.__init__(self, bus, "/")
2903
2904
2673
_interface = "se.recompile.Mandos"
2905
2674
2675
@dbus_interface_annotations(_interface)
2676
def _foo(self):
2677
return { "org.freedesktop.DBus.Property"
2678
".EmitsChangedSignal":
2679
"false"}
2680
2906
2681
@dbus.service.signal(_interface, signature="o")
2907
2682
def ClientAdded(self, objpath):
2908
2683
"D-Bus signal"
2913
2688
"D-Bus signal"
2914
2689
pass
2915
2690
2916
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2917
"true"})
2918
2691
@dbus.service.signal(_interface, signature="os")
2919
2692
def ClientRemoved(self, objpath, name):
2920
2693
"D-Bus signal"
2921
2694
pass
2922
2695
2923
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2924
"true"})
2925
2696
@dbus.service.method(_interface, out_signature="ao")
2926
2697
def GetAllClients(self):
2927
2698
"D-Bus method"
2928
return dbus.Array(c.dbus_object_path for c in
2699
return dbus.Array(c.dbus_object_path
2700
for c in
2929
2701
tcp_server.clients.itervalues())
2930
2702
2931
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2932
"true"})
2933
2703
@dbus.service.method(_interface,
2934
2704
out_signature="a{oa{sv}}")
2935
2705
def GetAllClientsWithProperties(self):
2936
2706
"D-Bus method"
2937
2707
return dbus.Dictionary(
2938
{ c.dbus_object_path: c.GetAll(
2939
"se.recompile.Mandos.Client")
2940
for c in tcp_server.clients.itervalues() },
2708
((c.dbus_object_path, c.GetAll(""))
2709
for c in tcp_server.clients.itervalues()),
2941
2710
signature="oa{sv}")
2942
2711
2943
2712
@dbus.service.method(_interface, in_signature="o")
2947
2716
if c.dbus_object_path == object_path:
2948
2717
del tcp_server.clients[c.name]
2949
2718
c.remove_from_connection()
2950
# Don't signal the disabling
2719
# Don't signal anything except ClientRemoved
2951
2720
c.disable(quiet=True)
2952
# Emit D-Bus signal for removal
2953
self.client_removed_signal(c)
2721
# Emit D-Bus signal
2722
self.ClientRemoved(object_path, c.name)
2954
2723
return
2955
2724
raise KeyError(object_path)
2956
2725
2957
2726
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
2727
2995
2728
mandos_dbus_service = MandosDBusService()
2996
2729
2997
2730
def cleanup():
2998
2731
"Cleanup function; run on exit"
2999
if zeroconf:
3000
service.cleanup()
2732
service.cleanup()
3001
2733
3002
2734
multiprocessing.active_children()
3003
2735
wnull.close()
3017
2749
3018
2750
# A list of attributes that can not be pickled
3019
2751
# + secret.
3020
exclude = { "bus", "changedstate", "secret",
3021
"checker", "server_settings" }
3022
for name, typ in inspect.getmembers(dbus.service
3023
.Object):
2752
exclude = set(("bus", "changedstate", "secret",
2753
"checker", "server_settings"))
2754
for name, typ in (inspect.getmembers
2755
(dbus.service.Object)):
3024
2756
exclude.add(name)
3025
2757
3026
2758
client_dict["encrypted_secret"] = (client
3033
2765
del client_settings[client.name]["secret"]
3034
2766
3035
2767
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:
2768
with (tempfile.NamedTemporaryFile
2769
(mode='wb', suffix=".pickle", prefix='clients-',
2770
dir=os.path.dirname(stored_state_path),
2771
delete=False)) as stored_state:
3042
2772
pickle.dump((clients, client_settings), stored_state)
3043
tempname = stored_state.name
2773
tempname=stored_state.name
3044
2774
os.rename(tempname, stored_state_path)
3045
2775
except (IOError, OSError) as e:
3046
2776
if not debug:
3049
2779
except NameError:
3050
2780
pass
3051
2781
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3052
logger.warning("Could not save persistent state: {}"
2782
logger.warning("Could not save persistent state: {0}"
3053
2783
.format(os.strerror(e.errno)))
3054
2784
else:
3055
2785
logger.warning("Could not save persistent state:",
3056
2786
exc_info=e)
3057
raise
2787
raise e
3058
2788
3059
2789
# Delete all clients, and settings from config
3060
2790
while tcp_server.clients:
3061
2791
name, client = tcp_server.clients.popitem()
3062
2792
if use_dbus:
3063
2793
client.remove_from_connection()
3064
# Don't signal the disabling
2794
# Don't signal anything except ClientRemoved
3065
2795
client.disable(quiet=True)
3066
# Emit D-Bus signal for removal
3067
mandos_dbus_service.client_removed_signal(client)
2796
if use_dbus:
2797
# Emit D-Bus signal
2798
mandos_dbus_service.ClientRemoved(client
2799
.dbus_object_path,
2800
client.name)
3068
2801
client_settings.clear()
3069
2802
3070
2803
atexit.register(cleanup)
3071
2804
3072
2805
for client in tcp_server.clients.itervalues():
3073
2806
if use_dbus:
3074
# Emit D-Bus signal for adding
3075
mandos_dbus_service.client_added_signal(client)
2807
# Emit D-Bus signal
2808
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3076
2809
# Need to initiate checking of clients
3077
2810
if client.enabled:
3078
2811
client.init_checker()
3081
2814
tcp_server.server_activate()
3082
2815
3083
2816
# Find out what port we got
3084
if zeroconf:
3085
service.port = tcp_server.socket.getsockname()[1]
2817
service.port = tcp_server.socket.getsockname()[1]
3086
2818
if use_ipv6:
3087
2819
logger.info("Now listening on address %r, port %d,"
3088
2820
" flowinfo %d, scope_id %d",
3094
2826
#service.interface = tcp_server.socket.getsockname()[3]
3095
2827
3096
2828
try:
3097
if zeroconf:
3098
# From the Avahi example code
3099
try:
3100
service.activate()
3101
except dbus.exceptions.DBusException as error:
3102
logger.critical("D-Bus Exception", exc_info=error)
3103
cleanup()
3104
sys.exit(1)
3105
# End of Avahi example code
2829
# From the Avahi example code
2830
try:
2831
service.activate()
2832
except dbus.exceptions.DBusException as error:
2833
logger.critical("D-Bus Exception", exc_info=error)
2834
cleanup()
2835
sys.exit(1)
2836
# End of Avahi example code
3106
2837
3107
2838
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3108
2839
lambda *args, **kwargs:
3123
2854
# Must run before the D-Bus bus name gets deregistered
3124
2855
cleanup()
3125
2856
3126
3127
2857
if __name__ == '__main__':
3128
2858
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0