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- Committer: Teddy Hogeborn
- Date: 2012-01-15 20:27:28 UTC
- Revision ID: teddy@recompile.se-20120115202728-185929ww2r84s8xg
* DBUS-API (se.recompile.Mandos.Client.LastCheckerStatus): New
property.
* mandos (Client.last_checker_status): Use -2 instead of None to match
D-Bus property. All users
changed.
(Client.checked_ok): Remove "timeout" argument and call
"self.bump_timeout()" instead.
(Client.bump_timeout): New; separated out from "checked_ok".
(ClientDBus.last_checker_status): Hook to a D-Bus property.
(ClientDBus.LastCheckerStatus_dbus_property): New D-Bus property.
(ClientHandler.handle): Call client.bump_timeout() instead of
client.checked_ok().
property.
* mandos (Client.last_checker_status): Use -2 instead of None to match
D-Bus property. All users
changed.
(Client.checked_ok): Remove "timeout" argument and call
"self.bump_timeout()" instead.
(Client.bump_timeout): New; separated out from "checked_ok".
(ClientDBus.last_checker_status): Hook to a D-Bus property.
(ClientDBus.LastCheckerStatus_dbus_property): New D-Bus property.
(ClientHandler.handle): Call client.bump_timeout() instead of
client.checked_ok().
- files removed:
- debian/mandos-client.examples
- debian/upstream
- plugin-helpers
- files modified:
- .bzrignore
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 © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 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
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
37
import SocketServer as socketserver
43
38
import socket
44
39
import argparse
45
40
import datetime
50
45
import gnutls.library.functions
51
46
import gnutls.library.constants
52
47
import gnutls.library.types
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
48
import ConfigParser as configparser
57
49
import sys
58
50
import re
59
51
import os
68
60
import struct
69
61
import fcntl
70
62
import functools
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
63
import cPickle as pickle
75
64
import multiprocessing
76
65
import types
77
66
import binascii
78
67
import tempfile
79
import itertools
80
import collections
81
import codecs
82
68
83
69
import dbus
84
70
import dbus.service
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
71
import gobject
89
72
import avahi
90
73
from dbus.mainloop.glib import DBusGMainLoop
91
74
import ctypes
92
75
import ctypes.util
93
76
import xml.dom.minidom
94
77
import inspect
78
import GnuPGInterface
95
79
96
80
try:
97
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
101
85
except ImportError:
102
86
SO_BINDTODEVICE = None
103
87
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.6.9"
88
version = "1.5.2"
108
89
stored_state_file = "clients.pickle"
109
90
110
91
logger = logging.getLogger()
111
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
112
95
113
96
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
116
100
except (OSError, AttributeError):
117
118
101
def if_nametoindex(interface):
119
102
"Get an interface index the hard way, i.e. using fcntl()"
120
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
104
with contextlib.closing(socket.socket()) as s:
122
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
125
110
return interface_index
126
111
127
112
128
113
def initlogger(debug, level=logging.WARNING):
129
114
"""init logger and add loglevel"""
130
115
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
116
syslogger.setFormatter(logging.Formatter
136
117
('Mandos [%(process)d]: %(levelname)s:'
137
118
' %(message)s'))
154
135
155
136
class PGPEngine(object):
156
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
159
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
165
147
166
148
def __enter__(self):
167
149
return self
168
150
169
def __exit__(self, exc_type, exc_value, traceback):
151
def __exit__ (self, exc_type, exc_value, traceback):
170
152
self._cleanup()
171
153
return False
172
154
189
171
def password_encode(self, password):
190
172
# Passphrase can not be empty and can not contain newlines or
191
173
# 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
174
return b"mandos" + binascii.hexlify(password)
199
175
200
176
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
205
passfile.flush()
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
208
passfile.name]
209
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
215
raise PGPError(err)
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
216
191
return ciphertext
217
192
218
193
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
223
passfile.flush()
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
226
passfile.name]
227
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
233
raise PGPError(err)
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
234
208
return decrypted_plaintext
235
209
236
210
211
237
212
class AvahiError(Exception):
238
213
def __init__(self, value, *args, **kwargs):
239
214
self.value = value
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
243
218
244
219
class AvahiServiceError(AvahiError):
245
220
pass
246
221
247
248
222
class AvahiGroupError(AvahiError):
249
223
pass
250
224
257
231
Used to optionally bind to the specified interface.
258
232
name: string; Example: 'Mandos'
259
233
type: string; Example: '_mandos._tcp'.
260
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
261
235
port: integer; what port to announce
262
236
TXT: list of strings; TXT record for the service
263
237
domain: string; Domain to publish on, default to .local if empty.
269
243
server: D-Bus Server
270
244
bus: dbus.SystemBus()
271
245
"""
272
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):
246
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
servicetype = None, port = None, TXT = None,
248
domain = "", host = "", max_renames = 32768,
249
protocol = avahi.PROTO_UNSPEC, bus = None):
284
250
self.interface = interface
285
251
self.name = name
286
252
self.type = servicetype
295
261
self.server = None
296
262
self.bus = bus
297
263
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
264
def rename(self):
300
265
"""Derived from the Avahi example code"""
301
266
if self.rename_count >= self.max_renames:
302
267
logger.critical("No suitable Zeroconf service name found"
303
268
" after %i retries, exiting.",
304
269
self.rename_count)
305
270
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
309
273
logger.info("Changing Zeroconf service name to %r ...",
310
274
self.name)
311
if remove:
312
self.remove()
275
self.remove()
313
276
try:
314
277
self.add()
315
278
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)
324
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
325
283
def remove(self):
326
284
"""Derived from the Avahi example code"""
327
285
if self.entry_group_state_changed_match is not None:
329
287
self.entry_group_state_changed_match = None
330
288
if self.group is not None:
331
289
self.group.Reset()
332
333
290
def add(self):
334
291
"""Derived from the Avahi example code"""
335
292
self.remove()
352
309
dbus.UInt16(self.port),
353
310
avahi.string_array_to_txt_array(self.TXT))
354
311
self.group.Commit()
355
356
312
def entry_group_state_changed(self, state, error):
357
313
"""Derived from the Avahi example code"""
358
314
logger.debug("Avahi entry group state change: %i", state)
364
320
self.rename()
365
321
elif state == avahi.ENTRY_GROUP_FAILURE:
366
322
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
370
326
def cleanup(self):
371
327
"""Derived from the Avahi example code"""
372
328
if self.group is not None:
377
333
pass
378
334
self.group = None
379
335
self.remove()
380
381
336
def server_state_changed(self, state, error=None):
382
337
"""Derived from the Avahi example code"""
383
338
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
}
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
390
346
if state in bad_states:
391
347
if bad_states[state] is not None:
392
348
if error is None:
395
351
logger.error(bad_states[state] + ": %r", error)
396
352
self.cleanup()
397
353
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)
354
self.add()
410
355
else:
411
356
if error is None:
412
357
logger.debug("Unknown state: %r", state)
413
358
else:
414
359
logger.debug("Unknown state: %r: %r", state, error)
415
416
360
def activate(self):
417
361
"""Derived from the Avahi example code"""
418
362
if self.server is None:
422
366
follow_name_owner_changes=True),
423
367
avahi.DBUS_INTERFACE_SERVER)
424
368
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
369
self.server_state_changed)
426
370
self.server_state_changed(self.server.GetState())
427
371
428
429
372
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
373
def rename(self):
431
374
"""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)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
436
380
return ret
437
381
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()
447
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
387
448
388
class Client(object):
449
389
"""A representation of a client host served by this server.
450
390
476
416
last_checker_status: integer between 0 and 255 reflecting exit
477
417
status of last checker. -1 reflects crashed
478
418
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
419
last_enabled: datetime.datetime(); (UTC) or None
482
420
name: string; from the config file, used in log messages and
483
421
D-Bus identifiers
488
426
runtime_expansions: Allowed attributes for runtime expansion.
489
427
expires: datetime.datetime(); time (UTC) when a client will be
490
428
disabled, or None
491
server_settings: The server_settings dict from main()
492
429
"""
493
430
494
431
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
498
434
"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
}
510
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
460
511
461
@staticmethod
512
462
def config_parser(config):
513
463
"""Construct a new dict of client settings of this form:
528
478
client["enabled"] = config.getboolean(client_name,
529
479
"enabled")
530
480
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
481
client["fingerprint"] = (section["fingerprint"].upper()
535
482
.replace(" ", ""))
536
483
if "secret" in section:
541
488
"rb") as secfile:
542
489
client["secret"] = secfile.read()
543
490
else:
544
raise TypeError("No secret or secfile for section {}"
545
.format(section))
491
raise TypeError("No secret or secfile for section %s"
492
% section)
546
493
client["timeout"] = string_to_delta(section["timeout"])
547
494
client["extended_timeout"] = string_to_delta(
548
495
section["extended_timeout"])
557
504
client["last_checker_status"] = -2
558
505
559
506
return settings
560
561
def __init__(self, settings, name = None, server_settings=None):
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
562
513
self.name = name
563
if server_settings is None:
564
server_settings = {}
565
self.server_settings = server_settings
566
514
# adding all client settings
567
for setting, value in settings.items():
515
for setting, value in settings.iteritems():
568
516
setattr(self, setting, value)
569
517
570
518
if self.enabled:
576
524
else:
577
525
self.last_enabled = None
578
526
self.expires = None
579
527
580
528
logger.debug("Creating client %r", self.name)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
581
532
logger.debug(" Fingerprint: %s", self.fingerprint)
582
533
self.created = settings.get("created",
583
534
datetime.datetime.utcnow())
584
535
585
536
# attributes specific for this server instance
586
537
self.checker = None
587
538
self.checker_initiator_tag = None
590
541
self.current_checker_command = None
591
542
self.approved = None
592
543
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()
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
597
549
if not attr.startswith("_")]
598
550
self.client_structure.append("client_structure")
599
551
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
602
556
if not name.startswith("_"):
603
557
self.client_structure.append(name)
604
558
612
566
if getattr(self, "enabled", False):
613
567
# Already enabled
614
568
return
569
self.send_changedstate()
615
570
self.expires = datetime.datetime.utcnow() + self.timeout
616
571
self.enabled = True
617
572
self.last_enabled = datetime.datetime.utcnow()
618
573
self.init_checker()
619
self.send_changedstate()
620
574
621
575
def disable(self, quiet=True):
622
576
"""Disable this client."""
623
577
if not getattr(self, "enabled", False):
624
578
return False
625
579
if not quiet:
580
self.send_changedstate()
581
if not quiet:
626
582
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
583
if getattr(self, "disable_initiator_tag", False):
628
584
gobject.source_remove(self.disable_initiator_tag)
629
585
self.disable_initiator_tag = None
630
586
self.expires = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
587
if getattr(self, "checker_initiator_tag", False):
632
588
gobject.source_remove(self.checker_initiator_tag)
633
589
self.checker_initiator_tag = None
634
590
self.stop_checker()
635
591
self.enabled = False
636
if not quiet:
637
self.send_changedstate()
638
592
# Do not run this again if called by a gobject.timeout_add
639
593
return False
640
594
644
598
def init_checker(self):
645
599
# Schedule a new checker to be started an 'interval' from now,
646
600
# and every interval from then on.
647
if self.checker_initiator_tag is not None:
648
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)
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
652
604
# Schedule a disable() when 'timeout' has passed
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
657
608
# Also start a new checker *right now*.
658
609
self.start_checker()
659
610
660
def checker_callback(self, source, condition, connection,
661
command):
611
def checker_callback(self, pid, condition, command):
662
612
"""The checker has completed, so take appropriate actions."""
663
613
self.checker_callback_tag = None
664
614
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
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
672
617
if self.last_checker_status == 0:
673
618
logger.info("Checker for %(name)s succeeded",
674
619
vars(self))
675
620
self.checked_ok()
676
621
else:
677
logger.info("Checker for %(name)s failed", vars(self))
622
logger.info("Checker for %(name)s failed",
623
vars(self))
678
624
else:
679
625
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
626
logger.warning("Checker for %(name)s crashed?",
682
627
vars(self))
683
return False
684
628
685
629
def checked_ok(self):
686
630
"""Assert that the client has been seen, alive and well."""
687
631
self.last_checked_ok = datetime.datetime.utcnow()
688
632
self.last_checker_status = 0
689
self.last_checker_signal = None
690
633
self.bump_timeout()
691
634
692
635
def bump_timeout(self, timeout=None):
695
638
timeout = self.timeout
696
639
if self.disable_initiator_tag is not None:
697
640
gobject.source_remove(self.disable_initiator_tag)
698
self.disable_initiator_tag = None
699
641
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
642
self.disable_initiator_tag = (gobject.timeout_add
643
(timedelta_to_milliseconds
644
(timeout), self.disable))
702
645
self.expires = datetime.datetime.utcnow() + timeout
703
646
704
647
def need_approval(self):
710
653
If a checker already exists, leave it running and do
711
654
nothing."""
712
655
# The reason for not killing a running checker is that if we
713
# did that, and if a checker (for some reason) started running
714
# slowly and taking more than 'interval' time, then the client
715
# would inevitably timeout, since no checker would get a
716
# chance to run to completion. If we instead leave running
656
# did that, then if a checker (for some reason) started
657
# running slowly and taking more than 'interval' time, the
658
# client would inevitably timeout, since no checker would get
659
# a chance to run to completion. If we instead leave running
717
660
# checkers alone, the checker would have to take more time
718
661
# than 'timeout' for the client to be disabled, which is as it
719
662
# should be.
720
663
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
664
# If a checker exists, make sure it is not a zombie
665
try:
666
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
667
except (AttributeError, OSError) as error:
668
if (isinstance(error, OSError)
669
and error.errno != errno.ECHILD):
670
raise error
671
else:
672
if pid:
673
logger.warning("Checker was a zombie")
674
gobject.source_remove(self.checker_callback_tag)
675
self.checker_callback(pid, status,
676
self.current_checker_command)
725
677
# Start a new checker if needed
726
678
if self.checker is None:
727
# Escape attributes for the shell
728
escaped_attrs = {
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
731
679
try:
732
command = self.checker_command % escaped_attrs
733
except TypeError as error:
734
logger.error('Could not format string "%s"',
735
self.checker_command,
736
exc_info=error)
737
return True # Try again later
680
# In case checker_command has exactly one % operator
681
command = self.checker_command % self.host
682
except TypeError:
683
# Escape attributes for the shell
684
escaped_attrs = dict(
685
(attr,
686
re.escape(unicode(str(getattr(self, attr, "")),
687
errors=
688
'replace')))
689
for attr in
690
self.runtime_expansions)
691
692
try:
693
command = self.checker_command % escaped_attrs
694
except TypeError as error:
695
logger.error('Could not format string "%s":'
696
' %s', self.checker_command, error)
697
return True # Try again later
738
698
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)
699
try:
700
logger.info("Starting checker %r for %s",
701
command, self.name)
702
# We don't need to redirect stdout and stderr, since
703
# in normal mode, that is already done by daemon(),
704
# and in debug mode we don't want to. (Stdin is
705
# always replaced by /dev/null.)
706
self.checker = subprocess.Popen(command,
707
close_fds=True,
708
shell=True, cwd="/")
709
self.checker_callback_tag = (gobject.child_watch_add
710
(self.checker.pid,
711
self.checker_callback,
712
data=command))
713
# The checker may have completed before the gobject
714
# watch was added. Check for this.
715
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
716
if pid:
717
gobject.source_remove(self.checker_callback_tag)
718
self.checker_callback(pid, status, command)
719
except OSError as error:
720
logger.error("Failed to start subprocess: %s",
721
error)
764
722
# Re-run this periodically if run by gobject.timeout_add
765
723
return True
766
724
772
730
if getattr(self, "checker", None) is None:
773
731
return
774
732
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
733
try:
734
os.kill(self.checker.pid, signal.SIGTERM)
735
#time.sleep(0.5)
736
#if self.checker.poll() is None:
737
# os.kill(self.checker.pid, signal.SIGKILL)
738
except OSError as error:
739
if error.errno != errno.ESRCH: # No such process
740
raise
776
741
self.checker = None
777
742
778
743
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
744
def dbus_service_property(dbus_interface, signature="v",
745
access="readwrite", byte_arrays=False):
783
746
"""Decorators for marking methods of a DBusObjectWithProperties to
784
747
become properties on the D-Bus.
785
748
794
757
# "Set" method, so we fail early here:
795
758
if byte_arrays and signature != "ay":
796
759
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
760
" signature %r" % signature)
799
761
def decorator(func):
800
762
func._dbus_is_property = True
801
763
func._dbus_interface = dbus_interface
806
768
func._dbus_name = func._dbus_name[:-14]
807
769
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
770
return func
809
810
return decorator
811
812
813
def dbus_interface_annotations(dbus_interface):
814
"""Decorator for marking functions returning interface annotations
815
816
Usage:
817
818
@dbus_interface_annotations("org.example.Interface")
819
def _foo(self): # Function name does not matter
820
return {"org.freedesktop.DBus.Deprecated": "true",
821
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
"false"}
823
"""
824
825
def decorator(func):
826
func._dbus_is_interface = True
827
func._dbus_interface = dbus_interface
828
func._dbus_name = dbus_interface
829
return func
830
831
return decorator
832
833
834
def dbus_annotations(annotations):
835
"""Decorator to annotate D-Bus methods, signals or properties
836
Usage:
837
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
@dbus_service_property("org.example.Interface", signature="b",
842
access="r")
843
def Property_dbus_property(self):
844
return dbus.Boolean(False)
845
846
See also the DBusObjectWithAnnotations class.
847
"""
848
849
def decorator(func):
850
func._dbus_annotations = annotations
851
return func
852
853
771
return decorator
854
772
855
773
856
774
class DBusPropertyException(dbus.exceptions.DBusException):
857
775
"""A base class for D-Bus property-related exceptions
858
776
"""
859
pass
777
def __unicode__(self):
778
return unicode(str(self))
860
779
861
780
862
781
class DBusPropertyAccessException(DBusPropertyException):
871
790
pass
872
791
873
792
874
class DBusObjectWithAnnotations(dbus.service.Object):
875
"""A D-Bus object with annotations.
876
877
Classes inheriting from this can use the dbus_annotations
878
decorator to add annotations to methods or signals.
879
"""
880
881
@staticmethod
882
def _is_dbus_thing(thing):
883
"""Returns a function testing if an attribute is a D-Bus thing
884
885
If called like _is_dbus_thing("method") it returns a function
886
suitable for use as predicate to inspect.getmembers().
887
"""
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
889
False)
890
891
def _get_all_dbus_things(self, thing):
892
"""Returns a generator of (name, attribute) pairs
893
"""
894
return ((getattr(athing.__get__(self), "_dbus_name", name),
895
athing.__get__(self))
896
for cls in self.__class__.__mro__
897
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):
793
class DBusObjectWithProperties(dbus.service.Object):
964
794
"""A D-Bus object with properties.
965
795
966
796
Classes inheriting from this can use the dbus_service_property
968
798
standard Get(), Set(), and GetAll() methods on the D-Bus.
969
799
"""
970
800
801
@staticmethod
802
def _is_dbus_property(obj):
803
return getattr(obj, "_dbus_is_property", False)
804
805
def _get_all_dbus_properties(self):
806
"""Returns a generator of (name, attribute) pairs
807
"""
808
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
809
for cls in self.__class__.__mro__
810
for name, prop in
811
inspect.getmembers(cls, self._is_dbus_property))
812
971
813
def _get_dbus_property(self, interface_name, property_name):
972
814
"""Returns a bound method if one exists which is a D-Bus
973
815
property with the specified name and interface.
974
816
"""
975
for cls in self.__class__.__mro__:
976
for name, value in inspect.getmembers(
977
cls, self._is_dbus_thing("property")):
817
for cls in self.__class__.__mro__:
818
for name, value in (inspect.getmembers
819
(cls, self._is_dbus_property)):
978
820
if (value._dbus_name == property_name
979
821
and value._dbus_interface == interface_name):
980
822
return value.__get__(self)
981
823
982
824
# 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",
825
raise DBusPropertyNotFound(self.dbus_object_path + ":"
826
+ interface_name + "."
827
+ property_name)
828
829
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
997
830
out_signature="v")
998
831
def Get(self, interface_name, property_name):
999
832
"""Standard D-Bus property Get() method, see D-Bus standard.
1017
850
# The byte_arrays option is not supported yet on
1018
851
# signatures other than "ay".
1019
852
if prop._dbus_signature != "ay":
1020
raise ValueError("Byte arrays not supported for non-"
1021
"'ay' signature {!r}"
1022
.format(prop._dbus_signature))
853
raise ValueError
1023
854
value = dbus.ByteArray(b''.join(chr(byte)
1024
855
for byte in value))
1025
856
prop(value)
1026
857
1027
@dbus.service.method(dbus.PROPERTIES_IFACE,
1028
in_signature="s",
858
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1029
859
out_signature="a{sv}")
1030
860
def GetAll(self, interface_name):
1031
861
"""Standard D-Bus property GetAll() method, see D-Bus
1034
864
Note: Will not include properties with access="write".
1035
865
"""
1036
866
properties = {}
1037
for name, prop in self._get_all_dbus_things("property"):
867
for name, prop in self._get_all_dbus_properties():
1038
868
if (interface_name
1039
869
and interface_name != prop._dbus_interface):
1040
870
# Interface non-empty but did not match
1046
876
if not hasattr(value, "variant_level"):
1047
877
properties[name] = value
1048
878
continue
1049
properties[name] = type(value)(
1050
value, variant_level = value.variant_level + 1)
879
properties[name] = type(value)(value, variant_level=
880
value.variant_level+1)
1051
881
return dbus.Dictionary(properties, signature="sv")
1052
882
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
883
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1062
884
out_signature="s",
1063
885
path_keyword='object_path',
1064
886
connection_keyword='connection')
1065
887
def Introspect(self, object_path, connection):
1066
"""Overloading of standard D-Bus method.
1067
1068
Inserts property tags and interface annotation tags.
888
"""Standard D-Bus method, overloaded to insert property tags.
1069
889
"""
1070
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1071
object_path,
1072
connection)
890
xmlstring = dbus.service.Object.Introspect(self, object_path,
891
connection)
1073
892
try:
1074
893
document = xml.dom.minidom.parseString(xmlstring)
1075
1076
894
def make_tag(document, name, prop):
1077
895
e = document.createElement("property")
1078
896
e.setAttribute("name", name)
1079
897
e.setAttribute("type", prop._dbus_signature)
1080
898
e.setAttribute("access", prop._dbus_access)
1081
899
return e
1082
1083
900
for if_tag in document.getElementsByTagName("interface"):
1084
# Add property tags
1085
901
for tag in (make_tag(document, name, prop)
1086
902
for name, prop
1087
in self._get_all_dbus_things("property")
903
in self._get_all_dbus_properties()
1088
904
if prop._dbus_interface
1089
905
== if_tag.getAttribute("name")):
1090
906
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)
1107
907
# Add the names to the return values for the
1108
908
# "org.freedesktop.DBus.Properties" methods
1109
909
if (if_tag.getAttribute("name")
1124
924
except (AttributeError, xml.dom.DOMException,
1125
925
xml.parsers.expat.ExpatError) as error:
1126
926
logger.error("Failed to override Introspection method",
1127
exc_info=error)
1128
return xmlstring
1129
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
1199
def datetime_to_dbus(dt, variant_level=0):
927
error)
928
return xmlstring
929
930
931
def datetime_to_dbus (dt, variant_level=0):
1200
932
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1201
933
if dt is None:
1202
934
return dbus.String("", variant_level = variant_level)
1203
return dbus.String(dt.isoformat(), variant_level=variant_level)
1204
1205
1206
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1207
"""A class decorator; applied to a subclass of
1208
dbus.service.Object, it will add alternate D-Bus attributes with
1209
interface names according to the "alt_interface_names" mapping.
1210
Usage:
1211
1212
@alternate_dbus_interfaces({"org.example.Interface":
1213
"net.example.AlternateInterface"})
1214
class SampleDBusObject(dbus.service.Object):
1215
@dbus.service.method("org.example.Interface")
1216
def SampleDBusMethod():
1217
pass
1218
1219
The above "SampleDBusMethod" on "SampleDBusObject" will be
1220
reachable via two interfaces: "org.example.Interface" and
1221
"net.example.AlternateInterface", the latter of which will have
1222
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1223
"true", unless "deprecate" is passed with a False value.
1224
1225
This works for methods and signals, and also for D-Bus properties
1226
(from DBusObjectWithProperties) and interfaces (from the
1227
dbus_interface_annotations decorator).
935
return dbus.String(dt.isoformat(),
936
variant_level=variant_level)
937
938
939
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
940
.__metaclass__):
941
"""Applied to an empty subclass of a D-Bus object, this metaclass
942
will add additional D-Bus attributes matching a certain pattern.
1228
943
"""
1229
1230
def wrapper(cls):
1231
for orig_interface_name, alt_interface_name in (
1232
alt_interface_names.items()):
1233
attr = {}
1234
interface_names = set()
1235
# Go though all attributes of the class
1236
for attrname, attribute in inspect.getmembers(cls):
944
def __new__(mcs, name, bases, attr):
945
# Go through all the base classes which could have D-Bus
946
# methods, signals, or properties in them
947
for base in (b for b in bases
948
if issubclass(b, dbus.service.Object)):
949
# Go though all attributes of the base class
950
for attrname, attribute in inspect.getmembers(base):
1237
951
# Ignore non-D-Bus attributes, and D-Bus attributes
1238
952
# with the wrong interface name
1239
953
if (not hasattr(attribute, "_dbus_interface")
1240
or not attribute._dbus_interface.startswith(
1241
orig_interface_name)):
954
or not attribute._dbus_interface
955
.startswith("se.recompile.Mandos")):
1242
956
continue
1243
957
# Create an alternate D-Bus interface name based on
1244
958
# the current name
1245
alt_interface = attribute._dbus_interface.replace(
1246
orig_interface_name, alt_interface_name)
1247
interface_names.add(alt_interface)
959
alt_interface = (attribute._dbus_interface
960
.replace("se.recompile.Mandos",
961
"se.bsnet.fukt.Mandos"))
1248
962
# Is this a D-Bus signal?
1249
963
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(
964
# Extract the original non-method function by
965
# black magic
966
nonmethod_func = (dict(
1254
967
zip(attribute.func_code.co_freevars,
1255
attribute.__closure__))
1256
["func"].cell_contents)
1257
else:
1258
nonmethod_func = attribute
968
attribute.__closure__))["func"]
969
.cell_contents)
1259
970
# Create a new, but exactly alike, function
1260
971
# object, and decorate it to be a new D-Bus signal
1261
972
# 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))
1279
# Copy annotations, if any
1280
try:
1281
new_function._dbus_annotations = dict(
1282
attribute._dbus_annotations)
1283
except AttributeError:
1284
pass
973
new_function = (dbus.service.signal
974
(alt_interface,
975
attribute._dbus_signature)
976
(types.FunctionType(
977
nonmethod_func.func_code,
978
nonmethod_func.func_globals,
979
nonmethod_func.func_name,
980
nonmethod_func.func_defaults,
981
nonmethod_func.func_closure)))
1285
982
# Define a creator of a function to call both the
1286
# original and alternate functions, so both the
1287
# original and alternate signals gets sent when
1288
# the function is called
983
# old and new functions, so both the old and new
984
# signals gets sent when the function is called
1289
985
def fixscope(func1, func2):
1290
986
"""This function is a scope container to pass
1291
987
func1 and func2 to the "call_both" function
1292
988
outside of its arguments"""
1293
1294
@functools.wraps(func2)
1295
989
def call_both(*args, **kwargs):
1296
990
"""This function will emit two D-Bus
1297
991
signals by calling func1 and func2"""
1298
992
func1(*args, **kwargs)
1299
993
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
994
return call_both
1306
995
# Create the "call_both" function and add it to
1307
996
# the class
1308
attr[attrname] = fixscope(attribute, new_function)
997
attr[attrname] = fixscope(attribute,
998
new_function)
1309
999
# Is this a D-Bus method?
1310
1000
elif getattr(attribute, "_dbus_is_method", False):
1311
1001
# Create a new, but exactly alike, function
1312
1002
# object. Decorate it to be a new D-Bus method
1313
1003
# with the alternate D-Bus interface name. Add it
1314
1004
# 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)))
1325
# Copy annotations, if any
1326
try:
1327
attr[attrname]._dbus_annotations = dict(
1328
attribute._dbus_annotations)
1329
except AttributeError:
1330
pass
1005
attr[attrname] = (dbus.service.method
1006
(alt_interface,
1007
attribute._dbus_in_signature,
1008
attribute._dbus_out_signature)
1009
(types.FunctionType
1010
(attribute.func_code,
1011
attribute.func_globals,
1012
attribute.func_name,
1013
attribute.func_defaults,
1014
attribute.func_closure)))
1331
1015
# Is this a D-Bus property?
1332
1016
elif getattr(attribute, "_dbus_is_property", False):
1333
1017
# Create a new, but exactly alike, function
1334
1018
# object, and decorate it to be a new D-Bus
1335
1019
# property with the alternate D-Bus interface
1336
1020
# 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)))
1348
# Copy annotations, if any
1349
try:
1350
attr[attrname]._dbus_annotations = dict(
1351
attribute._dbus_annotations)
1352
except AttributeError:
1353
pass
1354
# Is this a D-Bus interface?
1355
elif getattr(attribute, "_dbus_is_interface", False):
1356
# Create a new, but exactly alike, function
1357
# object. Decorate it to be a new D-Bus interface
1358
# with the alternate D-Bus interface name. Add it
1359
# 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)))
1367
if deprecate:
1368
# Deprecate all alternate interfaces
1369
iname="_AlternateDBusNames_interface_annotation{}"
1370
for interface_name in interface_names:
1371
1372
@dbus_interface_annotations(interface_name)
1373
def func(self):
1374
return { "org.freedesktop.DBus.Deprecated":
1375
"true" }
1376
# Find an unused name
1377
for aname in (iname.format(i)
1378
for i in itertools.count()):
1379
if aname not in attr:
1380
attr[aname] = func
1381
break
1382
if interface_names:
1383
# Replace the class with a new subclass of it with
1384
# methods, signals, etc. as created above.
1385
cls = type(b"{}Alternate".format(cls.__name__),
1386
(cls, ), attr)
1387
return cls
1388
1389
return wrapper
1390
1391
1392
@alternate_dbus_interfaces({"se.recompile.Mandos":
1393
"se.bsnet.fukt.Mandos"})
1021
attr[attrname] = (dbus_service_property
1022
(alt_interface,
1023
attribute._dbus_signature,
1024
attribute._dbus_access,
1025
attribute
1026
._dbus_get_args_options
1027
["byte_arrays"])
1028
(types.FunctionType
1029
(attribute.func_code,
1030
attribute.func_globals,
1031
attribute.func_name,
1032
attribute.func_defaults,
1033
attribute.func_closure)))
1034
return type.__new__(mcs, name, bases, attr)
1035
1036
1394
1037
class ClientDBus(Client, DBusObjectWithProperties):
1395
1038
"""A Client class using D-Bus
1396
1039
1400
1043
"""
1401
1044
1402
1045
runtime_expansions = (Client.runtime_expansions
1403
+ ("dbus_object_path", ))
1404
1405
_interface = "se.recompile.Mandos.Client"
1046
+ ("dbus_object_path",))
1406
1047
1407
1048
# dbus.service.Object doesn't use super(), so we can't either.
1408
1049
1411
1052
Client.__init__(self, *args, **kwargs)
1412
1053
# Only now, when this client is initialized, can it show up on
1413
1054
# the D-Bus
1414
client_object_name = str(self.name).translate(
1055
client_object_name = unicode(self.name).translate(
1415
1056
{ord("."): ord("_"),
1416
1057
ord("-"): ord("_")})
1417
self.dbus_object_path = dbus.ObjectPath(
1418
"/clients/" + client_object_name)
1058
self.dbus_object_path = (dbus.ObjectPath
1059
("/clients/" + client_object_name))
1419
1060
DBusObjectWithProperties.__init__(self, self.bus,
1420
1061
self.dbus_object_path)
1421
1422
def notifychangeproperty(transform_func, dbus_name,
1423
type_func=lambda x: x,
1424
variant_level=1,
1425
invalidate_only=False,
1426
_interface=_interface):
1062
1063
def notifychangeproperty(transform_func,
1064
dbus_name, type_func=lambda x: x,
1065
variant_level=1):
1427
1066
""" Modify a variable so that it's a property which announces
1428
1067
its changes to DBus.
1429
1068
1434
1073
to the D-Bus. Default: no transform
1435
1074
variant_level: D-Bus variant level. Default: 1
1436
1075
"""
1437
attrname = "_{}".format(dbus_name)
1438
1076
attrname = "_{0}".format(dbus_name)
1439
1077
def setter(self, value):
1440
1078
if hasattr(self, "dbus_object_path"):
1441
1079
if (not hasattr(self, attrname) or
1442
1080
type_func(getattr(self, attrname, None))
1443
1081
!= 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())
1082
dbus_value = transform_func(type_func(value),
1083
variant_level
1084
=variant_level)
1085
self.PropertyChanged(dbus.String(dbus_name),
1086
dbus_value)
1459
1087
setattr(self, attrname, value)
1460
1088
1461
1089
return property(lambda self: getattr(self, attrname), setter)
1462
1090
1091
1463
1092
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1464
1093
approvals_pending = notifychangeproperty(dbus.Boolean,
1465
1094
"ApprovalPending",
1467
1096
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1468
1097
last_enabled = notifychangeproperty(datetime_to_dbus,
1469
1098
"LastEnabled")
1470
checker = notifychangeproperty(
1471
dbus.Boolean, "CheckerRunning",
1472
type_func = lambda checker: checker is not None)
1099
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1100
type_func = lambda checker:
1101
checker is not None)
1473
1102
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1474
1103
"LastCheckedOK")
1475
1104
last_checker_status = notifychangeproperty(dbus.Int16,
1478
1107
datetime_to_dbus, "LastApprovalRequest")
1479
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1480
1109
"ApprovedByDefault")
1481
approval_delay = notifychangeproperty(
1482
dbus.UInt64, "ApprovalDelay",
1483
type_func = lambda td: td.total_seconds() * 1000)
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1484
1114
approval_duration = notifychangeproperty(
1485
1115
dbus.UInt64, "ApprovalDuration",
1486
type_func = lambda td: td.total_seconds() * 1000)
1116
type_func = timedelta_to_milliseconds)
1487
1117
host = notifychangeproperty(dbus.String, "Host")
1488
timeout = notifychangeproperty(
1489
dbus.UInt64, "Timeout",
1490
type_func = lambda td: td.total_seconds() * 1000)
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1491
1121
extended_timeout = notifychangeproperty(
1492
1122
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)
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1497
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1498
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1499
invalidate_only=True)
1500
1129
1501
1130
del notifychangeproperty
1502
1131
1509
1138
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1510
1139
Client.__del__(self, *args, **kwargs)
1511
1140
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:
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1519
1147
# Emit D-Bus signal
1520
1148
self.CheckerCompleted(dbus.Int16(exitstatus),
1521
# This is specific to GNU libC
1522
dbus.Int64(exitstatus << 8),
1149
dbus.Int64(condition),
1523
1150
dbus.String(command))
1524
1151
else:
1525
1152
# Emit D-Bus signal
1526
1153
self.CheckerCompleted(dbus.Int16(-1),
1527
dbus.Int64(
1528
# This is specific to GNU libC
1529
(exitstatus << 8)
1530
| self.last_checker_signal),
1154
dbus.Int64(condition),
1531
1155
dbus.String(command))
1532
return ret
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1533
1159
1534
1160
def start_checker(self, *args, **kwargs):
1535
old_checker_pid = getattr(self.checker, "pid", None)
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1536
1166
r = Client.start_checker(self, *args, **kwargs)
1537
1167
# Only if new checker process was started
1538
1168
if (self.checker is not None
1546
1176
return False
1547
1177
1548
1178
def approve(self, value=True):
1179
self.send_changedstate()
1549
1180
self.approved = value
1550
gobject.timeout_add(int(self.approval_duration.total_seconds()
1551
* 1000), self._reset_approved)
1552
self.send_changedstate()
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1553
1185
1554
1186
## D-Bus methods, signals & properties
1555
1556
## Interfaces
1187
_interface = "se.recompile.Mandos.Client"
1557
1188
1558
1189
## Signals
1559
1190
1570
1201
pass
1571
1202
1572
1203
# PropertyChanged - signal
1573
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1574
1204
@dbus.service.signal(_interface, signature="sv")
1575
1205
def PropertyChanged(self, property, value):
1576
1206
"D-Bus signal"
1610
1240
self.checked_ok()
1611
1241
1612
1242
# Enable - method
1613
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1614
1243
@dbus.service.method(_interface)
1615
1244
def Enable(self):
1616
1245
"D-Bus method"
1617
1246
self.enable()
1618
1247
1619
1248
# StartChecker - method
1620
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1621
1249
@dbus.service.method(_interface)
1622
1250
def StartChecker(self):
1623
1251
"D-Bus method"
1624
1252
self.start_checker()
1625
1253
1626
1254
# Disable - method
1627
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1628
1255
@dbus.service.method(_interface)
1629
1256
def Disable(self):
1630
1257
"D-Bus method"
1631
1258
self.disable()
1632
1259
1633
1260
# StopChecker - method
1634
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1635
1261
@dbus.service.method(_interface)
1636
1262
def StopChecker(self):
1637
1263
self.stop_checker()
1644
1270
return dbus.Boolean(bool(self.approvals_pending))
1645
1271
1646
1272
# ApprovedByDefault - property
1647
@dbus_service_property(_interface,
1648
signature="b",
1273
@dbus_service_property(_interface, signature="b",
1649
1274
access="readwrite")
1650
1275
def ApprovedByDefault_dbus_property(self, value=None):
1651
1276
if value is None: # get
1653
1278
self.approved_by_default = bool(value)
1654
1279
1655
1280
# ApprovalDelay - property
1656
@dbus_service_property(_interface,
1657
signature="t",
1281
@dbus_service_property(_interface, signature="t",
1658
1282
access="readwrite")
1659
1283
def ApprovalDelay_dbus_property(self, value=None):
1660
1284
if value is None: # get
1661
return dbus.UInt64(self.approval_delay.total_seconds()
1662
* 1000)
1285
return dbus.UInt64(self.approval_delay_milliseconds())
1663
1286
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1664
1287
1665
1288
# ApprovalDuration - property
1666
@dbus_service_property(_interface,
1667
signature="t",
1289
@dbus_service_property(_interface, signature="t",
1668
1290
access="readwrite")
1669
1291
def ApprovalDuration_dbus_property(self, value=None):
1670
1292
if value is None: # get
1671
return dbus.UInt64(self.approval_duration.total_seconds()
1672
* 1000)
1293
return dbus.UInt64(timedelta_to_milliseconds(
1294
self.approval_duration))
1673
1295
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1674
1296
1675
1297
# Name - property
1676
@dbus_annotations(
1677
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1678
1298
@dbus_service_property(_interface, signature="s", access="read")
1679
1299
def Name_dbus_property(self):
1680
1300
return dbus.String(self.name)
1681
1301
1682
1302
# Fingerprint - property
1683
@dbus_annotations(
1684
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1685
1303
@dbus_service_property(_interface, signature="s", access="read")
1686
1304
def Fingerprint_dbus_property(self):
1687
1305
return dbus.String(self.fingerprint)
1688
1306
1689
1307
# Host - property
1690
@dbus_service_property(_interface,
1691
signature="s",
1308
@dbus_service_property(_interface, signature="s",
1692
1309
access="readwrite")
1693
1310
def Host_dbus_property(self, value=None):
1694
1311
if value is None: # get
1695
1312
return dbus.String(self.host)
1696
self.host = str(value)
1313
self.host = unicode(value)
1697
1314
1698
1315
# Created - property
1699
@dbus_annotations(
1700
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1701
1316
@dbus_service_property(_interface, signature="s", access="read")
1702
1317
def Created_dbus_property(self):
1703
1318
return datetime_to_dbus(self.created)
1708
1323
return datetime_to_dbus(self.last_enabled)
1709
1324
1710
1325
# Enabled - property
1711
@dbus_service_property(_interface,
1712
signature="b",
1326
@dbus_service_property(_interface, signature="b",
1713
1327
access="readwrite")
1714
1328
def Enabled_dbus_property(self, value=None):
1715
1329
if value is None: # get
1720
1334
self.disable()
1721
1335
1722
1336
# LastCheckedOK - property
1723
@dbus_service_property(_interface,
1724
signature="s",
1337
@dbus_service_property(_interface, signature="s",
1725
1338
access="readwrite")
1726
1339
def LastCheckedOK_dbus_property(self, value=None):
1727
1340
if value is not None:
1730
1343
return datetime_to_dbus(self.last_checked_ok)
1731
1344
1732
1345
# LastCheckerStatus - property
1733
@dbus_service_property(_interface, signature="n", access="read")
1346
@dbus_service_property(_interface, signature="n",
1347
access="read")
1734
1348
def LastCheckerStatus_dbus_property(self):
1735
1349
return dbus.Int16(self.last_checker_status)
1736
1350
1745
1359
return datetime_to_dbus(self.last_approval_request)
1746
1360
1747
1361
# Timeout - property
1748
@dbus_service_property(_interface,
1749
signature="t",
1362
@dbus_service_property(_interface, signature="t",
1750
1363
access="readwrite")
1751
1364
def Timeout_dbus_property(self, value=None):
1752
1365
if value is None: # get
1753
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1754
old_timeout = self.timeout
1366
return dbus.UInt64(self.timeout_milliseconds())
1755
1367
self.timeout = datetime.timedelta(0, 0, 0, value)
1756
# Reschedule disabling
1368
# Reschedule timeout
1757
1369
if self.enabled:
1758
1370
now = datetime.datetime.utcnow()
1759
self.expires += self.timeout - old_timeout
1760
if self.expires <= now:
1371
time_to_die = timedelta_to_milliseconds(
1372
(self.last_checked_ok + self.timeout) - now)
1373
if time_to_die <= 0:
1761
1374
# The timeout has passed
1762
1375
self.disable()
1763
1376
else:
1377
self.expires = (now +
1378
datetime.timedelta(milliseconds =
1379
time_to_die))
1764
1380
if (getattr(self, "disable_initiator_tag", None)
1765
1381
is None):
1766
1382
return
1767
1383
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)
1384
self.disable_initiator_tag = (gobject.timeout_add
1385
(time_to_die,
1386
self.disable))
1771
1387
1772
1388
# ExtendedTimeout - property
1773
@dbus_service_property(_interface,
1774
signature="t",
1389
@dbus_service_property(_interface, signature="t",
1775
1390
access="readwrite")
1776
1391
def ExtendedTimeout_dbus_property(self, value=None):
1777
1392
if value is None: # get
1778
return dbus.UInt64(self.extended_timeout.total_seconds()
1779
* 1000)
1393
return dbus.UInt64(self.extended_timeout_milliseconds())
1780
1394
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1781
1395
1782
1396
# Interval - property
1783
@dbus_service_property(_interface,
1784
signature="t",
1397
@dbus_service_property(_interface, signature="t",
1785
1398
access="readwrite")
1786
1399
def Interval_dbus_property(self, value=None):
1787
1400
if value is None: # get
1788
return dbus.UInt64(self.interval.total_seconds() * 1000)
1401
return dbus.UInt64(self.interval_milliseconds())
1789
1402
self.interval = datetime.timedelta(0, 0, 0, value)
1790
1403
if getattr(self, "checker_initiator_tag", None) is None:
1791
1404
return
1792
1405
if self.enabled:
1793
1406
# Reschedule checker run
1794
1407
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
1408
self.checker_initiator_tag = (gobject.timeout_add
1409
(value, self.start_checker))
1410
self.start_checker() # Start one now, too
1798
1411
1799
1412
# Checker - property
1800
@dbus_service_property(_interface,
1801
signature="s",
1413
@dbus_service_property(_interface, signature="s",
1802
1414
access="readwrite")
1803
1415
def Checker_dbus_property(self, value=None):
1804
1416
if value is None: # get
1805
1417
return dbus.String(self.checker_command)
1806
self.checker_command = str(value)
1418
self.checker_command = unicode(value)
1807
1419
1808
1420
# CheckerRunning - property
1809
@dbus_service_property(_interface,
1810
signature="b",
1421
@dbus_service_property(_interface, signature="b",
1811
1422
access="readwrite")
1812
1423
def CheckerRunning_dbus_property(self, value=None):
1813
1424
if value is None: # get
1818
1429
self.stop_checker()
1819
1430
1820
1431
# ObjectPath - property
1821
@dbus_annotations(
1822
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1823
"org.freedesktop.DBus.Deprecated": "true"})
1824
1432
@dbus_service_property(_interface, signature="o", access="read")
1825
1433
def ObjectPath_dbus_property(self):
1826
1434
return self.dbus_object_path # is already a dbus.ObjectPath
1827
1435
1828
1436
# 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)
1437
@dbus_service_property(_interface, signature="ay",
1438
access="write", byte_arrays=True)
1836
1439
def Secret_dbus_property(self, value):
1837
self.secret = bytes(value)
1440
self.secret = str(value)
1838
1441
1839
1442
del _interface
1840
1443
1844
1447
self._pipe = child_pipe
1845
1448
self._pipe.send(('init', fpr, address))
1846
1449
if not self._pipe.recv():
1847
raise KeyError(fpr)
1450
raise KeyError()
1848
1451
1849
1452
def __getattribute__(self, name):
1850
1453
if name == '_pipe':
1854
1457
if data[0] == 'data':
1855
1458
return data[1]
1856
1459
if data[0] == 'function':
1857
1858
1460
def func(*args, **kwargs):
1859
1461
self._pipe.send(('funcall', name, args, kwargs))
1860
1462
return self._pipe.recv()[1]
1861
1862
1463
return func
1863
1464
1864
1465
def __setattr__(self, name, value):
1867
1468
self._pipe.send(('setattr', name, value))
1868
1469
1869
1470
1471
class ClientDBusTransitional(ClientDBus):
1472
__metaclass__ = AlternateDBusNamesMetaclass
1473
1474
1870
1475
class ClientHandler(socketserver.BaseRequestHandler, object):
1871
1476
"""A class to handle client connections.
1872
1477
1876
1481
def handle(self):
1877
1482
with contextlib.closing(self.server.child_pipe) as child_pipe:
1878
1483
logger.info("TCP connection from: %s",
1879
str(self.client_address))
1484
unicode(self.client_address))
1880
1485
logger.debug("Pipe FD: %d",
1881
1486
self.server.child_pipe.fileno())
1882
1487
1883
session = gnutls.connection.ClientSession(
1884
self.request, gnutls.connection .X509Credentials())
1488
session = (gnutls.connection
1489
.ClientSession(self.request,
1490
gnutls.connection
1491
.X509Credentials()))
1885
1492
1886
1493
# Note: gnutls.connection.X509Credentials is really a
1887
1494
# generic GnuTLS certificate credentials object so long as
1896
1503
priority = self.server.gnutls_priority
1897
1504
if priority is None:
1898
1505
priority = "NORMAL"
1899
gnutls.library.functions.gnutls_priority_set_direct(
1900
session._c_object, priority, None)
1506
(gnutls.library.functions
1507
.gnutls_priority_set_direct(session._c_object,
1508
priority, None))
1901
1509
1902
1510
# Start communication using the Mandos protocol
1903
1511
# Get protocol number
1905
1513
logger.debug("Protocol version: %r", line)
1906
1514
try:
1907
1515
if int(line.strip().split()[0]) > 1:
1908
raise RuntimeError(line)
1516
raise RuntimeError
1909
1517
except (ValueError, IndexError, RuntimeError) as error:
1910
1518
logger.error("Unknown protocol version: %s", error)
1911
1519
return
1923
1531
approval_required = False
1924
1532
try:
1925
1533
try:
1926
fpr = self.fingerprint(
1927
self.peer_certificate(session))
1534
fpr = self.fingerprint(self.peer_certificate
1535
(session))
1928
1536
except (TypeError,
1929
1537
gnutls.errors.GNUTLSError) as error:
1930
1538
logger.warning("Bad certificate: %s", error)
1945
1553
while True:
1946
1554
if not client.enabled:
1947
1555
logger.info("Client %s is disabled",
1948
client.name)
1556
client.name)
1949
1557
if self.server.use_dbus:
1950
1558
# Emit D-Bus signal
1951
1559
client.Rejected("Disabled")
1960
1568
if self.server.use_dbus:
1961
1569
# Emit D-Bus signal
1962
1570
client.NeedApproval(
1963
client.approval_delay.total_seconds()
1964
* 1000, client.approved_by_default)
1571
client.approval_delay_milliseconds(),
1572
client.approved_by_default)
1965
1573
else:
1966
1574
logger.warning("Client %s was not approved",
1967
1575
client.name)
1973
1581
#wait until timeout or approved
1974
1582
time = datetime.datetime.now()
1975
1583
client.changedstate.acquire()
1976
client.changedstate.wait(delay.total_seconds())
1584
(client.changedstate.wait
1585
(float(client.timedelta_to_milliseconds(delay)
1586
/ 1000)))
1977
1587
client.changedstate.release()
1978
1588
time2 = datetime.datetime.now()
1979
1589
if (time2 - time) >= delay:
1995
1605
try:
1996
1606
sent = session.send(client.secret[sent_size:])
1997
1607
except gnutls.errors.GNUTLSError as error:
1998
logger.warning("gnutls send failed",
1999
exc_info=error)
1608
logger.warning("gnutls send failed")
2000
1609
return
2001
logger.debug("Sent: %d, remaining: %d", sent,
2002
len(client.secret) - (sent_size
2003
+ sent))
1610
logger.debug("Sent: %d, remaining: %d",
1611
sent, len(client.secret)
1612
- (sent_size + sent))
2004
1613
sent_size += sent
2005
1614
2006
1615
logger.info("Sending secret to %s", client.name)
2016
1625
try:
2017
1626
session.bye()
2018
1627
except gnutls.errors.GNUTLSError as error:
2019
logger.warning("GnuTLS bye failed",
2020
exc_info=error)
1628
logger.warning("GnuTLS bye failed")
2021
1629
2022
1630
@staticmethod
2023
1631
def peer_certificate(session):
2024
1632
"Return the peer's OpenPGP certificate as a bytestring"
2025
1633
# If not an OpenPGP certificate...
2026
if (gnutls.library.functions.gnutls_certificate_type_get(
2027
session._c_object)
1634
if (gnutls.library.functions
1635
.gnutls_certificate_type_get(session._c_object)
2028
1636
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
2029
1637
# ...do the normal thing
2030
1638
return session.peer_certificate
2044
1652
def fingerprint(openpgp):
2045
1653
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2046
1654
# 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)))
1655
datum = (gnutls.library.types
1656
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1657
ctypes.POINTER
1658
(ctypes.c_ubyte)),
1659
ctypes.c_uint(len(openpgp))))
2051
1660
# New empty GnuTLS certificate
2052
1661
crt = gnutls.library.types.gnutls_openpgp_crt_t()
2053
gnutls.library.functions.gnutls_openpgp_crt_init(
2054
ctypes.byref(crt))
1662
(gnutls.library.functions
1663
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2055
1664
# 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)
1665
(gnutls.library.functions
1666
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1667
gnutls.library.constants
1668
.GNUTLS_OPENPGP_FMT_RAW))
2059
1669
# Verify the self signature in the key
2060
1670
crtverify = ctypes.c_uint()
2061
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
2062
crt, 0, ctypes.byref(crtverify))
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_verify_self(crt, 0,
1673
ctypes.byref(crtverify)))
2063
1674
if crtverify.value != 0:
2064
1675
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2065
raise gnutls.errors.CertificateSecurityError(
2066
"Verify failed")
1676
raise (gnutls.errors.CertificateSecurityError
1677
("Verify failed"))
2067
1678
# New buffer for the fingerprint
2068
1679
buf = ctypes.create_string_buffer(20)
2069
1680
buf_len = ctypes.c_size_t()
2070
1681
# 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))
1682
(gnutls.library.functions
1683
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1684
ctypes.byref(buf_len)))
2073
1685
# Deinit the certificate
2074
1686
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2075
1687
# Convert the buffer to a Python bytestring
2081
1693
2082
1694
class MultiprocessingMixIn(object):
2083
1695
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2084
2085
1696
def sub_process_main(self, request, address):
2086
1697
try:
2087
1698
self.finish_request(request, address)
2092
1703
def process_request(self, request, address):
2093
1704
"""Start a new process to process the request."""
2094
1705
proc = multiprocessing.Process(target = self.sub_process_main,
2095
args = (request, address))
1706
args = (request,
1707
address))
2096
1708
proc.start()
2097
1709
return proc
2098
1710
2099
1711
2100
1712
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2101
1713
""" adds a pipe to the MixIn """
2102
2103
1714
def process_request(self, request, client_address):
2104
1715
"""Overrides and wraps the original process_request().
2105
1716
2114
1725
2115
1726
def add_pipe(self, parent_pipe, proc):
2116
1727
"""Dummy function; override as necessary"""
2117
raise NotImplementedError()
1728
raise NotImplementedError
2118
1729
2119
1730
2120
1731
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2126
1737
interface: None or a network interface name (string)
2127
1738
use_ipv6: Boolean; to use IPv6 or not
2128
1739
"""
2129
2130
1740
def __init__(self, server_address, RequestHandlerClass,
2131
interface=None,
2132
use_ipv6=True,
2133
socketfd=None):
2134
"""If socketfd is set, use that file descriptor instead of
2135
creating a new one with socket.socket().
2136
"""
1741
interface=None, use_ipv6=True):
2137
1742
self.interface = interface
2138
1743
if use_ipv6:
2139
1744
self.address_family = socket.AF_INET6
2140
if socketfd is not None:
2141
# Save the file descriptor
2142
self.socketfd = socketfd
2143
# Save the original socket.socket() function
2144
self.socket_socket = socket.socket
2145
# To implement --socket, we monkey patch socket.socket.
2146
#
2147
# (When socketserver.TCPServer is a new-style class, we
2148
# could make self.socket into a property instead of monkey
2149
# patching socket.socket.)
2150
#
2151
# Create a one-time-only replacement for socket.socket()
2152
@functools.wraps(socket.socket)
2153
def socket_wrapper(*args, **kwargs):
2154
# Restore original function so subsequent calls are
2155
# not affected.
2156
socket.socket = self.socket_socket
2157
del self.socket_socket
2158
# This time only, return a new socket object from the
2159
# saved file descriptor.
2160
return socket.fromfd(self.socketfd, *args, **kwargs)
2161
# Replace socket.socket() function with wrapper
2162
socket.socket = socket_wrapper
2163
# The socketserver.TCPServer.__init__ will call
2164
# socket.socket(), which might be our replacement,
2165
# socket_wrapper(), if socketfd was set.
2166
1745
socketserver.TCPServer.__init__(self, server_address,
2167
1746
RequestHandlerClass)
2168
2169
1747
def server_bind(self):
2170
1748
"""This overrides the normal server_bind() function
2171
1749
to bind to an interface if one was specified, and also NOT to
2177
1755
self.interface)
2178
1756
else:
2179
1757
try:
2180
self.socket.setsockopt(
2181
socket.SOL_SOCKET, SO_BINDTODEVICE,
2182
(self.interface + "\0").encode("utf-8"))
1758
self.socket.setsockopt(socket.SOL_SOCKET,
1759
SO_BINDTODEVICE,
1760
str(self.interface
1761
+ '\0'))
2183
1762
except socket.error as error:
2184
if error.errno == errno.EPERM:
2185
logger.error("No permission to bind to"
2186
" interface %s", self.interface)
2187
elif error.errno == errno.ENOPROTOOPT:
1763
if error[0] == errno.EPERM:
1764
logger.error("No permission to"
1765
" bind to interface %s",
1766
self.interface)
1767
elif error[0] == errno.ENOPROTOOPT:
2188
1768
logger.error("SO_BINDTODEVICE not available;"
2189
1769
" cannot bind to interface %s",
2190
1770
self.interface)
2191
elif error.errno == errno.ENODEV:
2192
logger.error("Interface %s does not exist,"
2193
" cannot bind", self.interface)
2194
1771
else:
2195
1772
raise
2196
1773
# Only bind(2) the socket if we really need to.
2199
1776
if self.address_family == socket.AF_INET6:
2200
1777
any_address = "::" # in6addr_any
2201
1778
else:
2202
any_address = "0.0.0.0" # INADDR_ANY
1779
any_address = socket.INADDR_ANY
2203
1780
self.server_address = (any_address,
2204
1781
self.server_address[1])
2205
1782
elif not self.server_address[1]:
2206
self.server_address = (self.server_address[0], 0)
1783
self.server_address = (self.server_address[0],
1784
0)
2207
1785
# if self.interface:
2208
1786
# self.server_address = (self.server_address[0],
2209
1787
# 0, # port
2223
1801
2224
1802
Assumes a gobject.MainLoop event loop.
2225
1803
"""
2226
2227
1804
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):
1805
interface=None, use_ipv6=True, clients=None,
1806
gnutls_priority=None, use_dbus=True):
2234
1807
self.enabled = False
2235
1808
self.clients = clients
2236
1809
if self.clients is None:
2240
1813
IPv6_TCPServer.__init__(self, server_address,
2241
1814
RequestHandlerClass,
2242
1815
interface = interface,
2243
use_ipv6 = use_ipv6,
2244
socketfd = socketfd)
2245
1816
use_ipv6 = use_ipv6)
2246
1817
def server_activate(self):
2247
1818
if self.enabled:
2248
1819
return socketserver.TCPServer.server_activate(self)
2252
1823
2253
1824
def add_pipe(self, parent_pipe, proc):
2254
1825
# 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))
1826
gobject.io_add_watch(parent_pipe.fileno(),
1827
gobject.IO_IN | gobject.IO_HUP,
1828
functools.partial(self.handle_ipc,
1829
parent_pipe =
1830
parent_pipe,
1831
proc = proc))
2261
1832
2262
def handle_ipc(self, source, condition,
2263
parent_pipe=None,
2264
proc = None,
2265
client_object=None):
1833
def handle_ipc(self, source, condition, parent_pipe=None,
1834
proc = None, client_object=None):
1835
condition_names = {
1836
gobject.IO_IN: "IN", # There is data to read.
1837
gobject.IO_OUT: "OUT", # Data can be written (without
1838
# blocking).
1839
gobject.IO_PRI: "PRI", # There is urgent data to read.
1840
gobject.IO_ERR: "ERR", # Error condition.
1841
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1842
# broken, usually for pipes and
1843
# sockets).
1844
}
1845
conditions_string = ' | '.join(name
1846
for cond, name in
1847
condition_names.iteritems()
1848
if cond & condition)
2266
1849
# error, or the other end of multiprocessing.Pipe has closed
2267
if condition & (gobject.IO_ERR | gobject.IO_HUP):
1850
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2268
1851
# Wait for other process to exit
2269
1852
proc.join()
2270
1853
return False
2291
1874
parent_pipe.send(False)
2292
1875
return False
2293
1876
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))
1877
gobject.io_add_watch(parent_pipe.fileno(),
1878
gobject.IO_IN | gobject.IO_HUP,
1879
functools.partial(self.handle_ipc,
1880
parent_pipe =
1881
parent_pipe,
1882
proc = proc,
1883
client_object =
1884
client))
2301
1885
parent_pipe.send(True)
2302
1886
# remove the old hook in favor of the new above hook on
2303
1887
# same fileno
2309
1893
2310
1894
parent_pipe.send(('data', getattr(client_object,
2311
1895
funcname)(*args,
2312
**kwargs)))
1896
**kwargs)))
2313
1897
2314
1898
if command == 'getattr':
2315
1899
attrname = request[1]
2316
if isinstance(client_object.__getattribute__(attrname),
2317
collections.Callable):
2318
parent_pipe.send(('function', ))
1900
if callable(client_object.__getattribute__(attrname)):
1901
parent_pipe.send(('function',))
2319
1902
else:
2320
parent_pipe.send((
2321
'data', client_object.__getattribute__(attrname)))
1903
parent_pipe.send(('data', client_object
1904
.__getattribute__(attrname)))
2322
1905
2323
1906
if command == 'setattr':
2324
1907
attrname = request[1]
2328
1911
return True
2329
1912
2330
1913
2331
def rfc3339_duration_to_delta(duration):
2332
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2333
2334
>>> rfc3339_duration_to_delta("P7D")
2335
datetime.timedelta(7)
2336
>>> rfc3339_duration_to_delta("PT60S")
2337
datetime.timedelta(0, 60)
2338
>>> rfc3339_duration_to_delta("PT60M")
2339
datetime.timedelta(0, 3600)
2340
>>> rfc3339_duration_to_delta("PT24H")
2341
datetime.timedelta(1)
2342
>>> rfc3339_duration_to_delta("P1W")
2343
datetime.timedelta(7)
2344
>>> rfc3339_duration_to_delta("PT5M30S")
2345
datetime.timedelta(0, 330)
2346
>>> rfc3339_duration_to_delta("P1DT3M20S")
2347
datetime.timedelta(1, 200)
2348
"""
2349
2350
# Parsing an RFC 3339 duration with regular expressions is not
2351
# possible - there would have to be multiple places for the same
2352
# values, like seconds. The current code, while more esoteric, is
2353
# cleaner without depending on a parsing library. If Python had a
2354
# built-in library for parsing we would use it, but we'd like to
2355
# avoid excessive use of external libraries.
2356
2357
# 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
2363
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2364
# the "duration" ABNF definition in RFC 3339, Appendix A.
2365
token_end = Token(re.compile(r"$"), None, frozenset())
2366
token_second = Token(re.compile(r"(\d+)S"),
2367
datetime.timedelta(seconds=1),
2368
frozenset((token_end, )))
2369
token_minute = Token(re.compile(r"(\d+)M"),
2370
datetime.timedelta(minutes=1),
2371
frozenset((token_second, token_end)))
2372
token_hour = Token(re.compile(r"(\d+)H"),
2373
datetime.timedelta(hours=1),
2374
frozenset((token_minute, token_end)))
2375
token_time = Token(re.compile(r"T"),
2376
None,
2377
frozenset((token_hour, token_minute,
2378
token_second)))
2379
token_day = Token(re.compile(r"(\d+)D"),
2380
datetime.timedelta(days=1),
2381
frozenset((token_time, token_end)))
2382
token_month = Token(re.compile(r"(\d+)M"),
2383
datetime.timedelta(weeks=4),
2384
frozenset((token_day, token_end)))
2385
token_year = Token(re.compile(r"(\d+)Y"),
2386
datetime.timedelta(weeks=52),
2387
frozenset((token_month, token_end)))
2388
token_week = Token(re.compile(r"(\d+)W"),
2389
datetime.timedelta(weeks=1),
2390
frozenset((token_end, )))
2391
token_duration = Token(re.compile(r"P"), None,
2392
frozenset((token_year, token_month,
2393
token_day, token_time,
2394
token_week)))
2395
# Define starting values
2396
value = datetime.timedelta() # Value so far
2397
found_token = None
2398
followers = frozenset((token_duration, )) # Following valid tokens
2399
s = duration # String left to parse
2400
# Loop until end token is found
2401
while found_token is not token_end:
2402
# Search for any currently valid tokens
2403
for token in followers:
2404
match = token.regexp.match(s)
2405
if match is not None:
2406
# Token found
2407
if token.value is not None:
2408
# Value found, parse digits
2409
factor = int(match.group(1), 10)
2410
# Add to value so far
2411
value += factor * token.value
2412
# Strip token from string
2413
s = token.regexp.sub("", s, 1)
2414
# Go to found token
2415
found_token = token
2416
# Set valid next tokens
2417
followers = found_token.followers
2418
break
2419
else:
2420
# No currently valid tokens were found
2421
raise ValueError("Invalid RFC 3339 duration: {!r}"
2422
.format(duration))
2423
# End token found
2424
return value
2425
2426
2427
1914
def string_to_delta(interval):
2428
1915
"""Parse a string and return a datetime.timedelta
2429
1916
2440
1927
>>> string_to_delta('5m 30s')
2441
1928
datetime.timedelta(0, 330)
2442
1929
"""
2443
2444
try:
2445
return rfc3339_duration_to_delta(interval)
2446
except ValueError:
2447
pass
2448
2449
1930
timevalue = datetime.timedelta(0)
2450
1931
for s in interval.split():
2451
1932
try:
2452
suffix = s[-1]
1933
suffix = unicode(s[-1])
2453
1934
value = int(s[:-1])
2454
1935
if suffix == "d":
2455
1936
delta = datetime.timedelta(value)
2462
1943
elif suffix == "w":
2463
1944
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2464
1945
else:
2465
raise ValueError("Unknown suffix {!r}".format(suffix))
2466
except IndexError as e:
1946
raise ValueError("Unknown suffix %r" % suffix)
1947
except (ValueError, IndexError) as e:
2467
1948
raise ValueError(*(e.args))
2468
1949
timevalue += delta
2469
1950
return timevalue
2482
1963
sys.exit()
2483
1964
if not noclose:
2484
1965
# Close all standard open file descriptors
2485
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1966
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2486
1967
if not stat.S_ISCHR(os.fstat(null).st_mode):
2487
1968
raise OSError(errno.ENODEV,
2488
"{} not a character device"
2489
.format(os.devnull))
1969
"%s not a character device"
1970
% os.path.devnull)
2490
1971
os.dup2(null, sys.stdin.fileno())
2491
1972
os.dup2(null, sys.stdout.fileno())
2492
1973
os.dup2(null, sys.stderr.fileno())
2501
1982
2502
1983
parser = argparse.ArgumentParser()
2503
1984
parser.add_argument("-v", "--version", action="version",
2504
version = "%(prog)s {}".format(version),
1985
version = "%%(prog)s %s" % version,
2505
1986
help="show version number and exit")
2506
1987
parser.add_argument("-i", "--interface", metavar="IF",
2507
1988
help="Bind to interface IF")
2513
1994
help="Run self-test")
2514
1995
parser.add_argument("--debug", action="store_true",
2515
1996
help="Debug mode; run in foreground and log"
2516
" to terminal", default=None)
1997
" to terminal")
2517
1998
parser.add_argument("--debuglevel", metavar="LEVEL",
2518
1999
help="Debug level for stdout output")
2519
2000
parser.add_argument("--priority", help="GnuTLS"
2526
2007
" files")
2527
2008
parser.add_argument("--no-dbus", action="store_false",
2528
2009
dest="use_dbus", help="Do not provide D-Bus"
2529
" system bus interface", default=None)
2010
" system bus interface")
2530
2011
parser.add_argument("--no-ipv6", action="store_false",
2531
dest="use_ipv6", help="Do not use IPv6",
2532
default=None)
2012
dest="use_ipv6", help="Do not use IPv6")
2533
2013
parser.add_argument("--no-restore", action="store_false",
2534
2014
dest="restore", help="Do not restore stored"
2535
" state", default=None)
2536
parser.add_argument("--socket", type=int,
2537
help="Specify a file descriptor to a network"
2538
" socket to use instead of creating one")
2015
" state")
2539
2016
parser.add_argument("--statedir", metavar="DIR",
2540
2017
help="Directory to save/restore state in")
2541
parser.add_argument("--foreground", action="store_true",
2542
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
2018
2547
2019
options = parser.parse_args()
2548
2020
2549
2021
if options.check:
2550
2022
import doctest
2551
fail_count, test_count = doctest.testmod()
2552
sys.exit(os.EX_OK if fail_count == 0 else 1)
2023
doctest.testmod()
2024
sys.exit()
2553
2025
2554
2026
# Default values for config file for server-global settings
2555
2027
server_defaults = { "interface": "",
2557
2029
"port": "",
2558
2030
"debug": "False",
2559
2031
"priority":
2560
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2561
":+SIGN-DSA-SHA256",
2032
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2562
2033
"servicename": "Mandos",
2563
2034
"use_dbus": "True",
2564
2035
"use_ipv6": "True",
2565
2036
"debuglevel": "",
2566
2037
"restore": "True",
2567
"socket": "",
2568
"statedir": "/var/lib/mandos",
2569
"foreground": "False",
2570
"zeroconf": "True",
2571
}
2038
"statedir": "/var/lib/mandos"
2039
}
2572
2040
2573
2041
# Parse config file for server-global settings
2574
2042
server_config = configparser.SafeConfigParser(server_defaults)
2575
2043
del server_defaults
2576
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2044
server_config.read(os.path.join(options.configdir,
2045
"mandos.conf"))
2577
2046
# Convert the SafeConfigParser object to a dict
2578
2047
server_settings = server_config.defaults()
2579
2048
# Use the appropriate methods on the non-string config options
2580
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2049
for option in ("debug", "use_dbus", "use_ipv6"):
2581
2050
server_settings[option] = server_config.getboolean("DEFAULT",
2582
2051
option)
2583
2052
if server_settings["port"]:
2584
2053
server_settings["port"] = server_config.getint("DEFAULT",
2585
2054
"port")
2586
if server_settings["socket"]:
2587
server_settings["socket"] = server_config.getint("DEFAULT",
2588
"socket")
2589
# Later, stdin will, and stdout and stderr might, be dup'ed
2590
# over with an opened os.devnull. But we don't want this to
2591
# happen with a supplied network socket.
2592
if 0 <= server_settings["socket"] <= 2:
2593
server_settings["socket"] = os.dup(server_settings
2594
["socket"])
2595
2055
del server_config
2596
2056
2597
2057
# Override the settings from the config file with command line
2598
2058
# options, if set.
2599
2059
for option in ("interface", "address", "port", "debug",
2600
"priority", "servicename", "configdir", "use_dbus",
2601
"use_ipv6", "debuglevel", "restore", "statedir",
2602
"socket", "foreground", "zeroconf"):
2060
"priority", "servicename", "configdir",
2061
"use_dbus", "use_ipv6", "debuglevel", "restore",
2062
"statedir"):
2603
2063
value = getattr(options, option)
2604
2064
if value is not None:
2605
2065
server_settings[option] = value
2606
2066
del options
2607
2067
# Force all strings to be unicode
2608
2068
for option in server_settings.keys():
2609
if isinstance(server_settings[option], bytes):
2610
server_settings[option] = (server_settings[option]
2611
.decode("utf-8"))
2612
# Force all boolean options to be boolean
2613
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2614
"foreground", "zeroconf"):
2615
server_settings[option] = bool(server_settings[option])
2616
# Debug implies foreground
2617
if server_settings["debug"]:
2618
server_settings["foreground"] = True
2069
if type(server_settings[option]) is str:
2070
server_settings[option] = unicode(server_settings[option])
2619
2071
# Now we have our good server settings in "server_settings"
2620
2072
2621
2073
##################################################################
2622
2074
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
2075
# For convenience
2629
2076
debug = server_settings["debug"]
2630
2077
debuglevel = server_settings["debuglevel"]
2632
2079
use_ipv6 = server_settings["use_ipv6"]
2633
2080
stored_state_path = os.path.join(server_settings["statedir"],
2634
2081
stored_state_file)
2635
foreground = server_settings["foreground"]
2636
zeroconf = server_settings["zeroconf"]
2637
2082
2638
2083
if debug:
2639
2084
initlogger(debug, logging.DEBUG)
2645
2090
initlogger(debug, level)
2646
2091
2647
2092
if server_settings["servicename"] != "Mandos":
2648
syslogger.setFormatter(
2649
logging.Formatter('Mandos ({}) [%(process)d]:'
2650
' %(levelname)s: %(message)s'.format(
2651
server_settings["servicename"])))
2093
syslogger.setFormatter(logging.Formatter
2094
('Mandos (%s) [%%(process)d]:'
2095
' %%(levelname)s: %%(message)s'
2096
% server_settings["servicename"]))
2652
2097
2653
2098
# Parse config file with clients
2654
2099
client_config = configparser.SafeConfigParser(Client
2659
2104
global mandos_dbus_service
2660
2105
mandos_dbus_service = None
2661
2106
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)
2673
if not foreground:
2674
pidfilename = "/run/mandos.pid"
2675
if not os.path.isdir("/run/."):
2676
pidfilename = "/var/run/mandos.pid"
2677
pidfile = None
2107
tcp_server = MandosServer((server_settings["address"],
2108
server_settings["port"]),
2109
ClientHandler,
2110
interface=(server_settings["interface"]
2111
or None),
2112
use_ipv6=use_ipv6,
2113
gnutls_priority=
2114
server_settings["priority"],
2115
use_dbus=use_dbus)
2116
if not debug:
2117
pidfilename = "/var/run/mandos.pid"
2678
2118
try:
2679
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2680
except IOError as e:
2681
logger.error("Could not open file %r", pidfilename,
2682
exc_info=e)
2119
pidfile = open(pidfilename, "w")
2120
except IOError:
2121
logger.error("Could not open file %r", pidfilename)
2683
2122
2684
for name in ("_mandos", "mandos", "nobody"):
2123
try:
2124
uid = pwd.getpwnam("_mandos").pw_uid
2125
gid = pwd.getpwnam("_mandos").pw_gid
2126
except KeyError:
2685
2127
try:
2686
uid = pwd.getpwnam(name).pw_uid
2687
gid = pwd.getpwnam(name).pw_gid
2688
break
2128
uid = pwd.getpwnam("mandos").pw_uid
2129
gid = pwd.getpwnam("mandos").pw_gid
2689
2130
except KeyError:
2690
continue
2691
else:
2692
uid = 65534
2693
gid = 65534
2131
try:
2132
uid = pwd.getpwnam("nobody").pw_uid
2133
gid = pwd.getpwnam("nobody").pw_gid
2134
except KeyError:
2135
uid = 65534
2136
gid = 65534
2694
2137
try:
2695
2138
os.setgid(gid)
2696
2139
os.setuid(uid)
2697
2140
except OSError as error:
2698
if error.errno != errno.EPERM:
2699
raise
2141
if error[0] != errno.EPERM:
2142
raise error
2700
2143
2701
2144
if debug:
2702
2145
# Enable all possible GnuTLS debugging
2709
2152
def debug_gnutls(level, string):
2710
2153
logger.debug("GnuTLS: %s", string[:-1])
2711
2154
2712
gnutls.library.functions.gnutls_global_set_log_function(
2713
debug_gnutls)
2155
(gnutls.library.functions
2156
.gnutls_global_set_log_function(debug_gnutls))
2714
2157
2715
2158
# Redirect stdin so all checkers get /dev/null
2716
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2159
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2717
2160
os.dup2(null, sys.stdin.fileno())
2718
2161
if null > 2:
2719
2162
os.close(null)
2720
2163
2721
2164
# Need to fork before connecting to D-Bus
2722
if not foreground:
2165
if not debug:
2723
2166
# Close all input and output, do double fork, etc.
2724
2167
daemon()
2725
2168
2726
# multiprocessing will use threads, so before we use gobject we
2727
# need to inform gobject that threads will be used.
2728
2169
gobject.threads_init()
2729
2170
2730
2171
global main_loop
2731
2172
# From the Avahi example code
2732
DBusGMainLoop(set_as_default=True)
2173
DBusGMainLoop(set_as_default=True )
2733
2174
main_loop = gobject.MainLoop()
2734
2175
bus = dbus.SystemBus()
2735
2176
# End of Avahi example code
2736
2177
if use_dbus:
2737
2178
try:
2738
2179
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:
2745
logger.error("Disabling D-Bus:", exc_info=e)
2180
bus, do_not_queue=True)
2181
old_bus_name = (dbus.service.BusName
2182
("se.bsnet.fukt.Mandos", bus,
2183
do_not_queue=True))
2184
except dbus.exceptions.NameExistsException as e:
2185
logger.error(unicode(e) + ", disabling D-Bus")
2746
2186
use_dbus = False
2747
2187
server_settings["use_dbus"] = False
2748
2188
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"))
2189
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2190
service = AvahiServiceToSyslog(name =
2191
server_settings["servicename"],
2192
servicetype = "_mandos._tcp",
2193
protocol = protocol, bus = bus)
2194
if server_settings["interface"]:
2195
service.interface = (if_nametoindex
2196
(str(server_settings["interface"])))
2759
2197
2760
2198
global multiprocessing_manager
2761
2199
multiprocessing_manager = multiprocessing.Manager()
2762
2200
2763
2201
client_class = Client
2764
2202
if use_dbus:
2765
client_class = functools.partial(ClientDBus, bus = bus)
2203
client_class = functools.partial(ClientDBusTransitional,
2204
bus = bus)
2766
2205
2767
2206
client_settings = Client.config_parser(client_config)
2768
2207
old_client_settings = {}
2769
2208
clients_data = {}
2770
2209
2771
# This is used to redirect stdout and stderr for checker processes
2772
global wnull
2773
wnull = open(os.devnull, "w") # A writable /dev/null
2774
# Only used if server is running in foreground but not in debug
2775
# mode
2776
if debug or not foreground:
2777
wnull.close()
2778
2779
2210
# Get client data and settings from last running state.
2780
2211
if server_settings["restore"]:
2781
2212
try:
2782
2213
with open(stored_state_path, "rb") as stored_state:
2783
clients_data, old_client_settings = pickle.load(
2784
stored_state)
2214
clients_data, old_client_settings = (pickle.load
2215
(stored_state))
2785
2216
os.remove(stored_state_path)
2786
2217
except IOError as e:
2787
if e.errno == errno.ENOENT:
2788
logger.warning("Could not load persistent state:"
2789
" {}".format(os.strerror(e.errno)))
2790
else:
2791
logger.critical("Could not load persistent state:",
2792
exc_info=e)
2218
logger.warning("Could not load persistent state: {0}"
2219
.format(e))
2220
if e.errno != errno.ENOENT:
2793
2221
raise
2794
2222
except EOFError as e:
2795
2223
logger.warning("Could not load persistent state: "
2796
"EOFError:",
2797
exc_info=e)
2224
"EOFError: {0}".format(e))
2798
2225
2799
2226
with PGPEngine() as pgp:
2800
for client_name, client in clients_data.items():
2801
# Skip removed clients
2802
if client_name not in client_settings:
2803
continue
2804
2227
for client_name, client in clients_data.iteritems():
2805
2228
# Decide which value to use after restoring saved state.
2806
2229
# We have three different values: Old config file,
2807
2230
# new config file, and saved state.
2812
2235
# For each value in new config, check if it
2813
2236
# differs from the old config value (Except for
2814
2237
# the "secret" attribute)
2815
if (name != "secret"
2816
and (value !=
2817
old_client_settings[client_name][name])):
2238
if (name != "secret" and
2239
value != old_client_settings[client_name]
2240
[name]):
2818
2241
client[name] = value
2819
2242
except KeyError:
2820
2243
pass
2821
2244
2822
2245
# Clients who has passed its expire date can still be
2823
# enabled if its last checker was successful. A Client
2246
# enabled if its last checker was successful. Clients
2824
2247
# whose checker succeeded before we stored its state is
2825
2248
# assumed to have successfully run all checkers during
2826
2249
# downtime.
2828
2251
if datetime.datetime.utcnow() >= client["expires"]:
2829
2252
if not client["last_checked_ok"]:
2830
2253
logger.warning(
2831
"disabling client {} - Client never "
2832
"performed a successful checker".format(
2833
client_name))
2254
"disabling client {0} - Client never "
2255
"performed a successful checker"
2256
.format(client_name))
2834
2257
client["enabled"] = False
2835
2258
elif client["last_checker_status"] != 0:
2836
2259
logger.warning(
2837
"disabling client {} - Client last"
2838
" checker failed with error code"
2839
" {}".format(
2840
client_name,
2841
client["last_checker_status"]))
2260
"disabling client {0} - Client "
2261
"last checker failed with error code {1}"
2262
.format(client_name,
2263
client["last_checker_status"]))
2842
2264
client["enabled"] = False
2843
2265
else:
2844
client["expires"] = (
2845
datetime.datetime.utcnow()
2846
+ client["timeout"])
2266
client["expires"] = (datetime.datetime
2267
.utcnow()
2268
+ client["timeout"])
2847
2269
logger.debug("Last checker succeeded,"
2848
" keeping {} enabled".format(
2849
client_name))
2270
" keeping {0} enabled"
2271
.format(client_name))
2850
2272
try:
2851
client["secret"] = pgp.decrypt(
2852
client["encrypted_secret"],
2853
client_settings[client_name]["secret"])
2273
client["secret"] = (
2274
pgp.decrypt(client["encrypted_secret"],
2275
client_settings[client_name]
2276
["secret"]))
2854
2277
except PGPError:
2855
2278
# 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"])
2279
logger.debug("Failed to decrypt {0} old secret"
2280
.format(client_name))
2281
client["secret"] = (
2282
client_settings[client_name]["secret"])
2283
2860
2284
2861
2285
# Add/remove clients based on new changes made to config
2862
2286
for client_name in (set(old_client_settings)
2865
2289
for client_name in (set(client_settings)
2866
2290
- set(old_client_settings)):
2867
2291
clients_data[client_name] = client_settings[client_name]
2868
2292
2869
2293
# Create all client objects
2870
for client_name, client in clients_data.items():
2294
for client_name, client in clients_data.iteritems():
2871
2295
tcp_server.clients[client_name] = client_class(
2872
name = client_name,
2873
settings = client,
2874
server_settings = server_settings)
2296
name = client_name, settings = client)
2875
2297
2876
2298
if not tcp_server.clients:
2877
2299
logger.warning("No clients defined")
2878
2879
if not foreground:
2880
if pidfile is not None:
2881
pid = os.getpid()
2882
try:
2883
with pidfile:
2884
print(pid, file=pidfile)
2885
except IOError:
2886
logger.error("Could not write to file %r with PID %d",
2887
pidfilename, pid)
2888
del pidfile
2300
2301
if not debug:
2302
try:
2303
with pidfile:
2304
pid = os.getpid()
2305
pidfile.write(str(pid) + "\n".encode("utf-8"))
2306
del pidfile
2307
except IOError:
2308
logger.error("Could not write to file %r with PID %d",
2309
pidfilename, pid)
2310
except NameError:
2311
# "pidfile" was never created
2312
pass
2889
2313
del pidfilename
2314
signal.signal(signal.SIGINT, signal.SIG_IGN)
2890
2315
2891
2316
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2892
2317
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2893
2318
2894
2319
if use_dbus:
2895
2896
@alternate_dbus_interfaces(
2897
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2898
class MandosDBusService(DBusObjectWithObjectManager):
2320
class MandosDBusService(dbus.service.Object):
2899
2321
"""A D-Bus proxy object"""
2900
2901
2322
def __init__(self):
2902
2323
dbus.service.Object.__init__(self, bus, "/")
2903
2904
2324
_interface = "se.recompile.Mandos"
2905
2325
2906
2326
@dbus.service.signal(_interface, signature="o")
2913
2333
"D-Bus signal"
2914
2334
pass
2915
2335
2916
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2917
"true"})
2918
2336
@dbus.service.signal(_interface, signature="os")
2919
2337
def ClientRemoved(self, objpath, name):
2920
2338
"D-Bus signal"
2921
2339
pass
2922
2340
2923
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2924
"true"})
2925
2341
@dbus.service.method(_interface, out_signature="ao")
2926
2342
def GetAllClients(self):
2927
2343
"D-Bus method"
2928
return dbus.Array(c.dbus_object_path for c in
2344
return dbus.Array(c.dbus_object_path
2345
for c in
2929
2346
tcp_server.clients.itervalues())
2930
2347
2931
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2932
"true"})
2933
2348
@dbus.service.method(_interface,
2934
2349
out_signature="a{oa{sv}}")
2935
2350
def GetAllClientsWithProperties(self):
2936
2351
"D-Bus method"
2937
2352
return dbus.Dictionary(
2938
{ c.dbus_object_path: c.GetAll(
2939
"se.recompile.Mandos.Client")
2940
for c in tcp_server.clients.itervalues() },
2353
((c.dbus_object_path, c.GetAll(""))
2354
for c in tcp_server.clients.itervalues()),
2941
2355
signature="oa{sv}")
2942
2356
2943
2357
@dbus.service.method(_interface, in_signature="o")
2947
2361
if c.dbus_object_path == object_path:
2948
2362
del tcp_server.clients[c.name]
2949
2363
c.remove_from_connection()
2950
# Don't signal the disabling
2364
# Don't signal anything except ClientRemoved
2951
2365
c.disable(quiet=True)
2952
# Emit D-Bus signal for removal
2953
self.client_removed_signal(c)
2366
# Emit D-Bus signal
2367
self.ClientRemoved(object_path, c.name)
2954
2368
return
2955
2369
raise KeyError(object_path)
2956
2370
2957
2371
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
2372
2995
mandos_dbus_service = MandosDBusService()
2373
class MandosDBusServiceTransitional(MandosDBusService):
2374
__metaclass__ = AlternateDBusNamesMetaclass
2375
mandos_dbus_service = MandosDBusServiceTransitional()
2996
2376
2997
2377
def cleanup():
2998
2378
"Cleanup function; run on exit"
2999
if zeroconf:
3000
service.cleanup()
2379
service.cleanup()
3001
2380
3002
2381
multiprocessing.active_children()
3003
wnull.close()
3004
2382
if not (tcp_server.clients or client_settings):
3005
2383
return
3006
2384
3017
2395
3018
2396
# A list of attributes that can not be pickled
3019
2397
# + secret.
3020
exclude = { "bus", "changedstate", "secret",
3021
"checker", "server_settings" }
3022
for name, typ in inspect.getmembers(dbus.service
3023
.Object):
2398
exclude = set(("bus", "changedstate", "secret",
2399
"checker"))
2400
for name, typ in (inspect.getmembers
2401
(dbus.service.Object)):
3024
2402
exclude.add(name)
3025
2403
3026
2404
client_dict["encrypted_secret"] = (client
3033
2411
del client_settings[client.name]["secret"]
3034
2412
3035
2413
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:
2414
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2415
prefix="clients-",
2416
dir=os.path.dirname
2417
(stored_state_path))
2418
with os.fdopen(tempfd, "wb") as stored_state:
3042
2419
pickle.dump((clients, client_settings), stored_state)
3043
tempname = stored_state.name
3044
2420
os.rename(tempname, stored_state_path)
3045
2421
except (IOError, OSError) as e:
2422
logger.warning("Could not save persistent state: {0}"
2423
.format(e))
3046
2424
if not debug:
3047
2425
try:
3048
2426
os.remove(tempname)
3049
2427
except NameError:
3050
2428
pass
3051
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3052
logger.warning("Could not save persistent state: {}"
3053
.format(os.strerror(e.errno)))
3054
else:
3055
logger.warning("Could not save persistent state:",
3056
exc_info=e)
3057
raise
2429
if e.errno not in set((errno.ENOENT, errno.EACCES,
2430
errno.EEXIST)):
2431
raise e
3058
2432
3059
2433
# Delete all clients, and settings from config
3060
2434
while tcp_server.clients:
3061
2435
name, client = tcp_server.clients.popitem()
3062
2436
if use_dbus:
3063
2437
client.remove_from_connection()
3064
# Don't signal the disabling
2438
# Don't signal anything except ClientRemoved
3065
2439
client.disable(quiet=True)
3066
# Emit D-Bus signal for removal
3067
mandos_dbus_service.client_removed_signal(client)
2440
if use_dbus:
2441
# Emit D-Bus signal
2442
mandos_dbus_service.ClientRemoved(client
2443
.dbus_object_path,
2444
client.name)
3068
2445
client_settings.clear()
3069
2446
3070
2447
atexit.register(cleanup)
3071
2448
3072
2449
for client in tcp_server.clients.itervalues():
3073
2450
if use_dbus:
3074
# Emit D-Bus signal for adding
3075
mandos_dbus_service.client_added_signal(client)
2451
# Emit D-Bus signal
2452
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3076
2453
# Need to initiate checking of clients
3077
2454
if client.enabled:
3078
2455
client.init_checker()
3081
2458
tcp_server.server_activate()
3082
2459
3083
2460
# Find out what port we got
3084
if zeroconf:
3085
service.port = tcp_server.socket.getsockname()[1]
2461
service.port = tcp_server.socket.getsockname()[1]
3086
2462
if use_ipv6:
3087
2463
logger.info("Now listening on address %r, port %d,"
3088
" flowinfo %d, scope_id %d",
3089
*tcp_server.socket.getsockname())
2464
" flowinfo %d, scope_id %d"
2465
% tcp_server.socket.getsockname())
3090
2466
else: # IPv4
3091
logger.info("Now listening on address %r, port %d",
3092
*tcp_server.socket.getsockname())
2467
logger.info("Now listening on address %r, port %d"
2468
% tcp_server.socket.getsockname())
3093
2469
3094
2470
#service.interface = tcp_server.socket.getsockname()[3]
3095
2471
3096
2472
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
2473
# From the Avahi example code
2474
try:
2475
service.activate()
2476
except dbus.exceptions.DBusException as error:
2477
logger.critical("DBusException: %s", error)
2478
cleanup()
2479
sys.exit(1)
2480
# End of Avahi example code
3106
2481
3107
2482
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3108
2483
lambda *args, **kwargs:
3112
2487
logger.debug("Starting main loop")
3113
2488
main_loop.run()
3114
2489
except AvahiError as error:
3115
logger.critical("Avahi Error", exc_info=error)
2490
logger.critical("AvahiError: %s", error)
3116
2491
cleanup()
3117
2492
sys.exit(1)
3118
2493
except KeyboardInterrupt:
3123
2498
# Must run before the D-Bus bus name gets deregistered
3124
2499
cleanup()
3125
2500
3126
3127
2501
if __name__ == '__main__':
3128
2502
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0