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- Committer: Teddy Hogeborn
- Date: 2012-05-26 22:56:38 UTC
- mfrom: (589.1.1 socket-option)
- Revision ID: teddy@recompile.se-20120526225638-4hvqyrvmj0036lfn
Merge "--socket" option for server.
This is suggested by the GNU Coding Standards' Table of Long Options,
and will probably also allow socket activation (e.g. by systemd(8)).
This is suggested by the GNU Coding Standards' Table of Long Options,
and will probably also allow socket activation (e.g. by systemd(8)).
- files removed:
- debian/mandos-client.examples
- debian/upstream
- plugin-helpers
- files modified:
- DBUS-API
added
removed
mandos
1
#!/usr/bin/python2.7
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
14
# Copyright © 2008-2012 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
36
36
37
37
from future_builtins import *
38
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
39
import SocketServer as socketserver
43
40
import socket
44
41
import argparse
45
42
import datetime
46
43
import errno
47
try:
48
import ConfigParser as configparser
49
except ImportError:
50
import configparser
44
import gnutls.crypto
45
import gnutls.connection
46
import gnutls.errors
47
import gnutls.library.functions
48
import gnutls.library.constants
49
import gnutls.library.types
50
import ConfigParser as configparser
51
51
import sys
52
52
import re
53
53
import os
62
62
import struct
63
63
import fcntl
64
64
import functools
65
try:
66
import cPickle as pickle
67
except ImportError:
68
import pickle
65
import cPickle as pickle
69
66
import multiprocessing
70
67
import types
71
68
import binascii
72
69
import tempfile
73
70
import itertools
74
import collections
75
import codecs
76
71
77
72
import dbus
78
73
import dbus.service
79
try:
80
import gobject
81
except ImportError:
82
from gi.repository import GObject as gobject
74
import gobject
83
75
import avahi
84
76
from dbus.mainloop.glib import DBusGMainLoop
85
77
import ctypes
86
78
import ctypes.util
87
79
import xml.dom.minidom
88
80
import inspect
81
import GnuPGInterface
89
82
90
83
try:
91
84
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
95
88
except ImportError:
96
89
SO_BINDTODEVICE = None
97
90
98
if sys.version_info.major == 2:
99
str = unicode
100
101
version = "1.7.1"
91
version = "1.5.4"
102
92
stored_state_file = "clients.pickle"
103
93
104
94
logger = logging.getLogger()
105
syslogger = None
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
106
98
107
99
try:
108
if_nametoindex = ctypes.cdll.LoadLibrary(
109
ctypes.util.find_library("c")).if_nametoindex
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
110
103
except (OSError, AttributeError):
111
112
104
def if_nametoindex(interface):
113
105
"Get an interface index the hard way, i.e. using fcntl()"
114
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
115
107
with contextlib.closing(socket.socket()) as s:
116
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
117
struct.pack(b"16s16x", interface))
118
interface_index = struct.unpack("I", ifreq[16:20])[0]
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
119
113
return interface_index
120
114
121
115
122
116
def initlogger(debug, level=logging.WARNING):
123
117
"""init logger and add loglevel"""
124
118
125
global syslogger
126
syslogger = (logging.handlers.SysLogHandler(
127
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
128
address = "/dev/log"))
129
119
syslogger.setFormatter(logging.Formatter
130
120
('Mandos [%(process)d]: %(levelname)s:'
131
121
' %(message)s'))
148
138
149
139
class PGPEngine(object):
150
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
151
152
141
def __init__(self):
142
self.gnupg = GnuPGInterface.GnuPG()
153
143
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
154
self.gnupgargs = ['--batch',
155
'--home', self.tempdir,
156
'--force-mdc',
157
'--quiet',
158
'--no-use-agent']
144
self.gnupg = GnuPGInterface.GnuPG()
145
self.gnupg.options.meta_interactive = False
146
self.gnupg.options.homedir = self.tempdir
147
self.gnupg.options.extra_args.extend(['--force-mdc',
148
'--quiet',
149
'--no-use-agent'])
159
150
160
151
def __enter__(self):
161
152
return self
183
174
def password_encode(self, password):
184
175
# Passphrase can not be empty and can not contain newlines or
185
176
# NUL bytes. So we prefix it and hex encode it.
186
encoded = b"mandos" + binascii.hexlify(password)
187
if len(encoded) > 2048:
188
# GnuPG can't handle long passwords, so encode differently
189
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
190
.replace(b"\n", b"\\n")
191
.replace(b"\0", b"\\x00"))
192
return encoded
177
return b"mandos" + binascii.hexlify(password)
193
178
194
179
def encrypt(self, data, password):
195
passphrase = self.password_encode(password)
196
with tempfile.NamedTemporaryFile(
197
dir=self.tempdir) as passfile:
198
passfile.write(passphrase)
199
passfile.flush()
200
proc = subprocess.Popen(['gpg', '--symmetric',
201
'--passphrase-file',
202
passfile.name]
203
+ self.gnupgargs,
204
stdin = subprocess.PIPE,
205
stdout = subprocess.PIPE,
206
stderr = subprocess.PIPE)
207
ciphertext, err = proc.communicate(input = data)
208
if proc.returncode != 0:
209
raise PGPError(err)
180
self.gnupg.passphrase = self.password_encode(password)
181
with open(os.devnull, "w") as devnull:
182
try:
183
proc = self.gnupg.run(['--symmetric'],
184
create_fhs=['stdin', 'stdout'],
185
attach_fhs={'stderr': devnull})
186
with contextlib.closing(proc.handles['stdin']) as f:
187
f.write(data)
188
with contextlib.closing(proc.handles['stdout']) as f:
189
ciphertext = f.read()
190
proc.wait()
191
except IOError as e:
192
raise PGPError(e)
193
self.gnupg.passphrase = None
210
194
return ciphertext
211
195
212
196
def decrypt(self, data, password):
213
passphrase = self.password_encode(password)
214
with tempfile.NamedTemporaryFile(
215
dir = self.tempdir) as passfile:
216
passfile.write(passphrase)
217
passfile.flush()
218
proc = subprocess.Popen(['gpg', '--decrypt',
219
'--passphrase-file',
220
passfile.name]
221
+ self.gnupgargs,
222
stdin = subprocess.PIPE,
223
stdout = subprocess.PIPE,
224
stderr = subprocess.PIPE)
225
decrypted_plaintext, err = proc.communicate(input = data)
226
if proc.returncode != 0:
227
raise PGPError(err)
197
self.gnupg.passphrase = self.password_encode(password)
198
with open(os.devnull, "w") as devnull:
199
try:
200
proc = self.gnupg.run(['--decrypt'],
201
create_fhs=['stdin', 'stdout'],
202
attach_fhs={'stderr': devnull})
203
with contextlib.closing(proc.handles['stdin']) as f:
204
f.write(data)
205
with contextlib.closing(proc.handles['stdout']) as f:
206
decrypted_plaintext = f.read()
207
proc.wait()
208
except IOError as e:
209
raise PGPError(e)
210
self.gnupg.passphrase = None
228
211
return decrypted_plaintext
229
212
230
213
231
214
class AvahiError(Exception):
232
215
def __init__(self, value, *args, **kwargs):
233
216
self.value = value
234
return super(AvahiError, self).__init__(value, *args,
235
**kwargs)
236
217
super(AvahiError, self).__init__(value, *args, **kwargs)
218
def __unicode__(self):
219
return unicode(repr(self.value))
237
220
238
221
class AvahiServiceError(AvahiError):
239
222
pass
240
223
241
242
224
class AvahiGroupError(AvahiError):
243
225
pass
244
226
251
233
Used to optionally bind to the specified interface.
252
234
name: string; Example: 'Mandos'
253
235
type: string; Example: '_mandos._tcp'.
254
See <https://www.iana.org/assignments/service-names-port-numbers>
236
See <http://www.dns-sd.org/ServiceTypes.html>
255
237
port: integer; what port to announce
256
238
TXT: list of strings; TXT record for the service
257
239
domain: string; Domain to publish on, default to .local if empty.
264
246
bus: dbus.SystemBus()
265
247
"""
266
248
267
def __init__(self,
268
interface = avahi.IF_UNSPEC,
269
name = None,
270
servicetype = None,
271
port = None,
272
TXT = None,
273
domain = "",
274
host = "",
275
max_renames = 32768,
276
protocol = avahi.PROTO_UNSPEC,
277
bus = None):
249
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
250
servicetype = None, port = None, TXT = None,
251
domain = "", host = "", max_renames = 32768,
252
protocol = avahi.PROTO_UNSPEC, bus = None):
278
253
self.interface = interface
279
254
self.name = name
280
255
self.type = servicetype
290
265
self.bus = bus
291
266
self.entry_group_state_changed_match = None
292
267
293
def rename(self, remove=True):
268
def rename(self):
294
269
"""Derived from the Avahi example code"""
295
270
if self.rename_count >= self.max_renames:
296
271
logger.critical("No suitable Zeroconf service name found"
297
272
" after %i retries, exiting.",
298
273
self.rename_count)
299
274
raise AvahiServiceError("Too many renames")
300
self.name = str(
301
self.server.GetAlternativeServiceName(self.name))
302
self.rename_count += 1
275
self.name = unicode(self.server
276
.GetAlternativeServiceName(self.name))
303
277
logger.info("Changing Zeroconf service name to %r ...",
304
278
self.name)
305
if remove:
306
self.remove()
279
self.remove()
307
280
try:
308
281
self.add()
309
282
except dbus.exceptions.DBusException as error:
310
if (error.get_dbus_name()
311
== "org.freedesktop.Avahi.CollisionError"):
312
logger.info("Local Zeroconf service name collision.")
313
return self.rename(remove=False)
314
else:
315
logger.critical("D-Bus Exception", exc_info=error)
316
self.cleanup()
317
os._exit(1)
283
logger.critical("D-Bus Exception", exc_info=error)
284
self.cleanup()
285
os._exit(1)
286
self.rename_count += 1
318
287
319
288
def remove(self):
320
289
"""Derived from the Avahi example code"""
358
327
self.rename()
359
328
elif state == avahi.ENTRY_GROUP_FAILURE:
360
329
logger.critical("Avahi: Error in group state changed %s",
361
str(error))
362
raise AvahiGroupError("State changed: {!s}".format(error))
330
unicode(error))
331
raise AvahiGroupError("State changed: {0!s}"
332
.format(error))
363
333
364
334
def cleanup(self):
365
335
"""Derived from the Avahi example code"""
375
345
def server_state_changed(self, state, error=None):
376
346
"""Derived from the Avahi example code"""
377
347
logger.debug("Avahi server state change: %i", state)
378
bad_states = {
379
avahi.SERVER_INVALID: "Zeroconf server invalid",
380
avahi.SERVER_REGISTERING: None,
381
avahi.SERVER_COLLISION: "Zeroconf server name collision",
382
avahi.SERVER_FAILURE: "Zeroconf server failure",
383
}
348
bad_states = { avahi.SERVER_INVALID:
349
"Zeroconf server invalid",
350
avahi.SERVER_REGISTERING: None,
351
avahi.SERVER_COLLISION:
352
"Zeroconf server name collision",
353
avahi.SERVER_FAILURE:
354
"Zeroconf server failure" }
384
355
if state in bad_states:
385
356
if bad_states[state] is not None:
386
357
if error is None:
389
360
logger.error(bad_states[state] + ": %r", error)
390
361
self.cleanup()
391
362
elif state == avahi.SERVER_RUNNING:
392
try:
393
self.add()
394
except dbus.exceptions.DBusException as error:
395
if (error.get_dbus_name()
396
== "org.freedesktop.Avahi.CollisionError"):
397
logger.info("Local Zeroconf service name"
398
" collision.")
399
return self.rename(remove=False)
400
else:
401
logger.critical("D-Bus Exception", exc_info=error)
402
self.cleanup()
403
os._exit(1)
363
self.add()
404
364
else:
405
365
if error is None:
406
366
logger.debug("Unknown state: %r", state)
416
376
follow_name_owner_changes=True),
417
377
avahi.DBUS_INTERFACE_SERVER)
418
378
self.server.connect_to_signal("StateChanged",
419
self.server_state_changed)
379
self.server_state_changed)
420
380
self.server_state_changed(self.server.GetState())
421
381
422
382
423
383
class AvahiServiceToSyslog(AvahiService):
424
def rename(self, *args, **kwargs):
384
def rename(self):
425
385
"""Add the new name to the syslog messages"""
426
ret = AvahiService.rename(self, *args, **kwargs)
427
syslogger.setFormatter(logging.Formatter(
428
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
429
.format(self.name)))
386
ret = AvahiService.rename(self)
387
syslogger.setFormatter(logging.Formatter
388
('Mandos ({0}) [%(process)d]:'
389
' %(levelname)s: %(message)s'
390
.format(self.name)))
430
391
return ret
431
392
432
# Pretend that we have a GnuTLS module
433
class GnuTLS(object):
434
"""This isn't so much a class as it is a module-like namespace.
435
It is instantiated once, and simulates having a GnuTLS module."""
436
437
_library = ctypes.cdll.LoadLibrary(
438
ctypes.util.find_library("gnutls"))
439
_need_version = "3.3.0"
440
def __init__(self):
441
# Need to use class name "GnuTLS" here, since this method is
442
# called before the assignment to the "gnutls" global variable
443
# happens.
444
if GnuTLS.check_version(self._need_version) is None:
445
raise GnuTLS.Error("Needs GnuTLS {} or later"
446
.format(self._need_version))
447
448
# Unless otherwise indicated, the constants and types below are
449
# all from the gnutls/gnutls.h C header file.
450
451
# Constants
452
E_SUCCESS = 0
453
E_INTERRUPTED = -52
454
E_AGAIN = -28
455
CRT_OPENPGP = 2
456
CLIENT = 2
457
SHUT_RDWR = 0
458
CRD_CERTIFICATE = 1
459
E_NO_CERTIFICATE_FOUND = -49
460
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
461
462
# Types
463
class session_int(ctypes.Structure):
464
_fields_ = []
465
session_t = ctypes.POINTER(session_int)
466
class certificate_credentials_st(ctypes.Structure):
467
_fields_ = []
468
certificate_credentials_t = ctypes.POINTER(
469
certificate_credentials_st)
470
certificate_type_t = ctypes.c_int
471
class datum_t(ctypes.Structure):
472
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
473
('size', ctypes.c_uint)]
474
class openpgp_crt_int(ctypes.Structure):
475
_fields_ = []
476
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
477
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
478
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
479
credentials_type_t = ctypes.c_int #
480
transport_ptr_t = ctypes.c_void_p
481
close_request_t = ctypes.c_int
482
483
# Exceptions
484
class Error(Exception):
485
# We need to use the class name "GnuTLS" here, since this
486
# exception might be raised from within GnuTLS.__init__,
487
# which is called before the assignment to the "gnutls"
488
# global variable has happened.
489
def __init__(self, message = None, code = None, args=()):
490
# Default usage is by a message string, but if a return
491
# code is passed, convert it to a string with
492
# gnutls.strerror()
493
self.code = code
494
if message is None and code is not None:
495
message = GnuTLS.strerror(code)
496
return super(GnuTLS.Error, self).__init__(
497
message, *args)
498
499
class CertificateSecurityError(Error):
500
pass
501
502
# Classes
503
class Credentials(object):
504
def __init__(self):
505
self._c_object = gnutls.certificate_credentials_t()
506
gnutls.certificate_allocate_credentials(
507
ctypes.byref(self._c_object))
508
self.type = gnutls.CRD_CERTIFICATE
509
510
def __del__(self):
511
gnutls.certificate_free_credentials(self._c_object)
512
513
class ClientSession(object):
514
def __init__(self, socket, credentials = None):
515
self._c_object = gnutls.session_t()
516
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
517
gnutls.set_default_priority(self._c_object)
518
gnutls.transport_set_ptr(self._c_object, socket.fileno())
519
gnutls.handshake_set_private_extensions(self._c_object,
520
True)
521
self.socket = socket
522
if credentials is None:
523
credentials = gnutls.Credentials()
524
gnutls.credentials_set(self._c_object, credentials.type,
525
ctypes.cast(credentials._c_object,
526
ctypes.c_void_p))
527
self.credentials = credentials
528
529
def __del__(self):
530
gnutls.deinit(self._c_object)
531
532
def handshake(self):
533
return gnutls.handshake(self._c_object)
534
535
def send(self, data):
536
data = bytes(data)
537
data_len = len(data)
538
while data_len > 0:
539
data_len -= gnutls.record_send(self._c_object,
540
data[-data_len:],
541
data_len)
542
543
def bye(self):
544
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
545
546
# Error handling functions
547
def _error_code(result):
548
"""A function to raise exceptions on errors, suitable
549
for the 'restype' attribute on ctypes functions"""
550
if result >= 0:
551
return result
552
if result == gnutls.E_NO_CERTIFICATE_FOUND:
553
raise gnutls.CertificateSecurityError(code = result)
554
raise gnutls.Error(code = result)
555
556
def _retry_on_error(result, func, arguments):
557
"""A function to retry on some errors, suitable
558
for the 'errcheck' attribute on ctypes functions"""
559
while result < 0:
560
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
561
return _error_code(result)
562
result = func(*arguments)
563
return result
564
565
# Unless otherwise indicated, the function declarations below are
566
# all from the gnutls/gnutls.h C header file.
567
568
# Functions
569
priority_set_direct = _library.gnutls_priority_set_direct
570
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
571
ctypes.POINTER(ctypes.c_char_p)]
572
priority_set_direct.restype = _error_code
573
574
init = _library.gnutls_init
575
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
576
init.restype = _error_code
577
578
set_default_priority = _library.gnutls_set_default_priority
579
set_default_priority.argtypes = [session_t]
580
set_default_priority.restype = _error_code
581
582
record_send = _library.gnutls_record_send
583
record_send.argtypes = [session_t, ctypes.c_void_p,
584
ctypes.c_size_t]
585
record_send.restype = ctypes.c_ssize_t
586
record_send.errcheck = _retry_on_error
587
588
certificate_allocate_credentials = (
589
_library.gnutls_certificate_allocate_credentials)
590
certificate_allocate_credentials.argtypes = [
591
ctypes.POINTER(certificate_credentials_t)]
592
certificate_allocate_credentials.restype = _error_code
593
594
certificate_free_credentials = (
595
_library.gnutls_certificate_free_credentials)
596
certificate_free_credentials.argtypes = [certificate_credentials_t]
597
certificate_free_credentials.restype = None
598
599
handshake_set_private_extensions = (
600
_library.gnutls_handshake_set_private_extensions)
601
handshake_set_private_extensions.argtypes = [session_t,
602
ctypes.c_int]
603
handshake_set_private_extensions.restype = None
604
605
credentials_set = _library.gnutls_credentials_set
606
credentials_set.argtypes = [session_t, credentials_type_t,
607
ctypes.c_void_p]
608
credentials_set.restype = _error_code
609
610
strerror = _library.gnutls_strerror
611
strerror.argtypes = [ctypes.c_int]
612
strerror.restype = ctypes.c_char_p
613
614
certificate_type_get = _library.gnutls_certificate_type_get
615
certificate_type_get.argtypes = [session_t]
616
certificate_type_get.restype = _error_code
617
618
certificate_get_peers = _library.gnutls_certificate_get_peers
619
certificate_get_peers.argtypes = [session_t,
620
ctypes.POINTER(ctypes.c_uint)]
621
certificate_get_peers.restype = ctypes.POINTER(datum_t)
622
623
global_set_log_level = _library.gnutls_global_set_log_level
624
global_set_log_level.argtypes = [ctypes.c_int]
625
global_set_log_level.restype = None
626
627
global_set_log_function = _library.gnutls_global_set_log_function
628
global_set_log_function.argtypes = [log_func]
629
global_set_log_function.restype = None
630
631
deinit = _library.gnutls_deinit
632
deinit.argtypes = [session_t]
633
deinit.restype = None
634
635
handshake = _library.gnutls_handshake
636
handshake.argtypes = [session_t]
637
handshake.restype = _error_code
638
handshake.errcheck = _retry_on_error
639
640
transport_set_ptr = _library.gnutls_transport_set_ptr
641
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
642
transport_set_ptr.restype = None
643
644
bye = _library.gnutls_bye
645
bye.argtypes = [session_t, close_request_t]
646
bye.restype = _error_code
647
bye.errcheck = _retry_on_error
648
649
check_version = _library.gnutls_check_version
650
check_version.argtypes = [ctypes.c_char_p]
651
check_version.restype = ctypes.c_char_p
652
653
# All the function declarations below are from gnutls/openpgp.h
654
655
openpgp_crt_init = _library.gnutls_openpgp_crt_init
656
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
657
openpgp_crt_init.restype = _error_code
658
659
openpgp_crt_import = _library.gnutls_openpgp_crt_import
660
openpgp_crt_import.argtypes = [openpgp_crt_t,
661
ctypes.POINTER(datum_t),
662
openpgp_crt_fmt_t]
663
openpgp_crt_import.restype = _error_code
664
665
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
666
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
667
ctypes.POINTER(ctypes.c_uint)]
668
openpgp_crt_verify_self.restype = _error_code
669
670
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
671
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
672
openpgp_crt_deinit.restype = None
673
674
openpgp_crt_get_fingerprint = (
675
_library.gnutls_openpgp_crt_get_fingerprint)
676
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
677
ctypes.c_void_p,
678
ctypes.POINTER(
679
ctypes.c_size_t)]
680
openpgp_crt_get_fingerprint.restype = _error_code
681
682
# Remove non-public functions
683
del _error_code, _retry_on_error
684
# Create the global "gnutls" object, simulating a module
685
gnutls = GnuTLS()
686
687
def call_pipe(connection, # : multiprocessing.Connection
688
func, *args, **kwargs):
689
"""This function is meant to be called by multiprocessing.Process
690
691
This function runs func(*args, **kwargs), and writes the resulting
692
return value on the provided multiprocessing.Connection.
693
"""
694
connection.send(func(*args, **kwargs))
695
connection.close()
393
394
def timedelta_to_milliseconds(td):
395
"Convert a datetime.timedelta() to milliseconds"
396
return ((td.days * 24 * 60 * 60 * 1000)
397
+ (td.seconds * 1000)
398
+ (td.microseconds // 1000))
399
696
400
697
401
class Client(object):
698
402
"""A representation of a client host served by this server.
725
429
last_checker_status: integer between 0 and 255 reflecting exit
726
430
status of last checker. -1 reflects crashed
727
431
checker, -2 means no checker completed yet.
728
last_checker_signal: The signal which killed the last checker, if
729
last_checker_status is -1
730
432
last_enabled: datetime.datetime(); (UTC) or None
731
433
name: string; from the config file, used in log messages and
732
434
D-Bus identifiers
737
439
runtime_expansions: Allowed attributes for runtime expansion.
738
440
expires: datetime.datetime(); time (UTC) when a client will be
739
441
disabled, or None
740
server_settings: The server_settings dict from main()
741
442
"""
742
443
743
444
runtime_expansions = ("approval_delay", "approval_duration",
745
446
"fingerprint", "host", "interval",
746
447
"last_approval_request", "last_checked_ok",
747
448
"last_enabled", "name", "timeout")
748
client_defaults = {
749
"timeout": "PT5M",
750
"extended_timeout": "PT15M",
751
"interval": "PT2M",
752
"checker": "fping -q -- %%(host)s",
753
"host": "",
754
"approval_delay": "PT0S",
755
"approval_duration": "PT1S",
756
"approved_by_default": "True",
757
"enabled": "True",
758
}
449
client_defaults = { "timeout": "5m",
450
"extended_timeout": "15m",
451
"interval": "2m",
452
"checker": "fping -q -- %%(host)s",
453
"host": "",
454
"approval_delay": "0s",
455
"approval_duration": "1s",
456
"approved_by_default": "True",
457
"enabled": "True",
458
}
459
460
def timeout_milliseconds(self):
461
"Return the 'timeout' attribute in milliseconds"
462
return timedelta_to_milliseconds(self.timeout)
463
464
def extended_timeout_milliseconds(self):
465
"Return the 'extended_timeout' attribute in milliseconds"
466
return timedelta_to_milliseconds(self.extended_timeout)
467
468
def interval_milliseconds(self):
469
"Return the 'interval' attribute in milliseconds"
470
return timedelta_to_milliseconds(self.interval)
471
472
def approval_delay_milliseconds(self):
473
return timedelta_to_milliseconds(self.approval_delay)
759
474
760
475
@staticmethod
761
476
def config_parser(config):
777
492
client["enabled"] = config.getboolean(client_name,
778
493
"enabled")
779
494
780
# Uppercase and remove spaces from fingerprint for later
781
# comparison purposes with return value from the
782
# fingerprint() function
783
495
client["fingerprint"] = (section["fingerprint"].upper()
784
496
.replace(" ", ""))
785
497
if "secret" in section:
790
502
"rb") as secfile:
791
503
client["secret"] = secfile.read()
792
504
else:
793
raise TypeError("No secret or secfile for section {}"
505
raise TypeError("No secret or secfile for section {0}"
794
506
.format(section))
795
507
client["timeout"] = string_to_delta(section["timeout"])
796
508
client["extended_timeout"] = string_to_delta(
807
519
808
520
return settings
809
521
810
def __init__(self, settings, name = None, server_settings=None):
522
def __init__(self, settings, name = None):
811
523
self.name = name
812
if server_settings is None:
813
server_settings = {}
814
self.server_settings = server_settings
815
524
# adding all client settings
816
for setting, value in settings.items():
525
for setting, value in settings.iteritems():
817
526
setattr(self, setting, value)
818
527
819
528
if self.enabled:
827
536
self.expires = None
828
537
829
538
logger.debug("Creating client %r", self.name)
539
# Uppercase and remove spaces from fingerprint for later
540
# comparison purposes with return value from the fingerprint()
541
# function
830
542
logger.debug(" Fingerprint: %s", self.fingerprint)
831
543
self.created = settings.get("created",
832
544
datetime.datetime.utcnow())
839
551
self.current_checker_command = None
840
552
self.approved = None
841
553
self.approvals_pending = 0
842
self.changedstate = multiprocessing_manager.Condition(
843
multiprocessing_manager.Lock())
844
self.client_structure = [attr
845
for attr in self.__dict__.iterkeys()
554
self.changedstate = (multiprocessing_manager
555
.Condition(multiprocessing_manager
556
.Lock()))
557
self.client_structure = [attr for attr in
558
self.__dict__.iterkeys()
846
559
if not attr.startswith("_")]
847
560
self.client_structure.append("client_structure")
848
561
849
for name, t in inspect.getmembers(
850
type(self), lambda obj: isinstance(obj, property)):
562
for name, t in inspect.getmembers(type(self),
563
lambda obj:
564
isinstance(obj,
565
property)):
851
566
if not name.startswith("_"):
852
567
self.client_structure.append(name)
853
568
895
610
# and every interval from then on.
896
611
if self.checker_initiator_tag is not None:
897
612
gobject.source_remove(self.checker_initiator_tag)
898
self.checker_initiator_tag = gobject.timeout_add(
899
int(self.interval.total_seconds() * 1000),
900
self.start_checker)
613
self.checker_initiator_tag = (gobject.timeout_add
614
(self.interval_milliseconds(),
615
self.start_checker))
901
616
# Schedule a disable() when 'timeout' has passed
902
617
if self.disable_initiator_tag is not None:
903
618
gobject.source_remove(self.disable_initiator_tag)
904
self.disable_initiator_tag = gobject.timeout_add(
905
int(self.timeout.total_seconds() * 1000), self.disable)
619
self.disable_initiator_tag = (gobject.timeout_add
620
(self.timeout_milliseconds(),
621
self.disable))
906
622
# Also start a new checker *right now*.
907
623
self.start_checker()
908
624
909
def checker_callback(self, source, condition, connection,
910
command):
625
def checker_callback(self, pid, condition, command):
911
626
"""The checker has completed, so take appropriate actions."""
912
627
self.checker_callback_tag = None
913
628
self.checker = None
914
# Read return code from connection (see call_pipe)
915
returncode = connection.recv()
916
connection.close()
917
918
if returncode >= 0:
919
self.last_checker_status = returncode
920
self.last_checker_signal = None
629
if os.WIFEXITED(condition):
630
self.last_checker_status = os.WEXITSTATUS(condition)
921
631
if self.last_checker_status == 0:
922
632
logger.info("Checker for %(name)s succeeded",
923
633
vars(self))
924
634
self.checked_ok()
925
635
else:
926
logger.info("Checker for %(name)s failed", vars(self))
636
logger.info("Checker for %(name)s failed",
637
vars(self))
927
638
else:
928
639
self.last_checker_status = -1
929
self.last_checker_signal = -returncode
930
640
logger.warning("Checker for %(name)s crashed?",
931
641
vars(self))
932
return False
933
642
934
643
def checked_ok(self):
935
644
"""Assert that the client has been seen, alive and well."""
936
645
self.last_checked_ok = datetime.datetime.utcnow()
937
646
self.last_checker_status = 0
938
self.last_checker_signal = None
939
647
self.bump_timeout()
940
648
941
649
def bump_timeout(self, timeout=None):
946
654
gobject.source_remove(self.disable_initiator_tag)
947
655
self.disable_initiator_tag = None
948
656
if getattr(self, "enabled", False):
949
self.disable_initiator_tag = gobject.timeout_add(
950
int(timeout.total_seconds() * 1000), self.disable)
657
self.disable_initiator_tag = (gobject.timeout_add
658
(timedelta_to_milliseconds
659
(timeout), self.disable))
951
660
self.expires = datetime.datetime.utcnow() + timeout
952
661
953
662
def need_approval(self):
967
676
# than 'timeout' for the client to be disabled, which is as it
968
677
# should be.
969
678
970
if self.checker is not None and not self.checker.is_alive():
971
logger.warning("Checker was not alive; joining")
972
self.checker.join()
973
self.checker = None
679
# If a checker exists, make sure it is not a zombie
680
try:
681
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
682
except (AttributeError, OSError) as error:
683
if (isinstance(error, OSError)
684
and error.errno != errno.ECHILD):
685
raise error
686
else:
687
if pid:
688
logger.warning("Checker was a zombie")
689
gobject.source_remove(self.checker_callback_tag)
690
self.checker_callback(pid, status,
691
self.current_checker_command)
974
692
# Start a new checker if needed
975
693
if self.checker is None:
976
694
# Escape attributes for the shell
977
escaped_attrs = {
978
attr: re.escape(str(getattr(self, attr)))
979
for attr in self.runtime_expansions }
695
escaped_attrs = dict(
696
(attr, re.escape(unicode(getattr(self, attr))))
697
for attr in
698
self.runtime_expansions)
980
699
try:
981
700
command = self.checker_command % escaped_attrs
982
701
except TypeError as error:
983
702
logger.error('Could not format string "%s"',
984
self.checker_command,
703
self.checker_command, exc_info=error)
704
return True # Try again later
705
self.current_checker_command = command
706
try:
707
logger.info("Starting checker %r for %s",
708
command, self.name)
709
# We don't need to redirect stdout and stderr, since
710
# in normal mode, that is already done by daemon(),
711
# and in debug mode we don't want to. (Stdin is
712
# always replaced by /dev/null.)
713
self.checker = subprocess.Popen(command,
714
close_fds=True,
715
shell=True, cwd="/")
716
except OSError as error:
717
logger.error("Failed to start subprocess",
985
718
exc_info=error)
986
return True # Try again later
987
self.current_checker_command = command
988
logger.info("Starting checker %r for %s", command,
989
self.name)
990
# We don't need to redirect stdout and stderr, since
991
# in normal mode, that is already done by daemon(),
992
# and in debug mode we don't want to. (Stdin is
993
# always replaced by /dev/null.)
994
# The exception is when not debugging but nevertheless
995
# running in the foreground; use the previously
996
# created wnull.
997
popen_args = { "close_fds": True,
998
"shell": True,
999
"cwd": "/" }
1000
if (not self.server_settings["debug"]
1001
and self.server_settings["foreground"]):
1002
popen_args.update({"stdout": wnull,
1003
"stderr": wnull })
1004
pipe = multiprocessing.Pipe(duplex = False)
1005
self.checker = multiprocessing.Process(
1006
target = call_pipe,
1007
args = (pipe[1], subprocess.call, command),
1008
kwargs = popen_args)
1009
self.checker.start()
1010
self.checker_callback_tag = gobject.io_add_watch(
1011
pipe[0].fileno(), gobject.IO_IN,
1012
self.checker_callback, pipe[0], command)
719
self.checker_callback_tag = (gobject.child_watch_add
720
(self.checker.pid,
721
self.checker_callback,
722
data=command))
723
# The checker may have completed before the gobject
724
# watch was added. Check for this.
725
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
726
if pid:
727
gobject.source_remove(self.checker_callback_tag)
728
self.checker_callback(pid, status, command)
1013
729
# Re-run this periodically if run by gobject.timeout_add
1014
730
return True
1015
731
1021
737
if getattr(self, "checker", None) is None:
1022
738
return
1023
739
logger.debug("Stopping checker for %(name)s", vars(self))
1024
self.checker.terminate()
740
try:
741
self.checker.terminate()
742
#time.sleep(0.5)
743
#if self.checker.poll() is None:
744
# self.checker.kill()
745
except OSError as error:
746
if error.errno != errno.ESRCH: # No such process
747
raise
1025
748
self.checker = None
1026
749
1027
750
1028
def dbus_service_property(dbus_interface,
1029
signature="v",
1030
access="readwrite",
1031
byte_arrays=False):
751
def dbus_service_property(dbus_interface, signature="v",
752
access="readwrite", byte_arrays=False):
1032
753
"""Decorators for marking methods of a DBusObjectWithProperties to
1033
754
become properties on the D-Bus.
1034
755
1043
764
# "Set" method, so we fail early here:
1044
765
if byte_arrays and signature != "ay":
1045
766
raise ValueError("Byte arrays not supported for non-'ay'"
1046
" signature {!r}".format(signature))
1047
767
" signature {0!r}".format(signature))
1048
768
def decorator(func):
1049
769
func._dbus_is_property = True
1050
770
func._dbus_interface = dbus_interface
1055
775
func._dbus_name = func._dbus_name[:-14]
1056
776
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1057
777
return func
1058
1059
778
return decorator
1060
779
1061
780
1070
789
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1071
790
"false"}
1072
791
"""
1073
1074
792
def decorator(func):
1075
793
func._dbus_is_interface = True
1076
794
func._dbus_interface = dbus_interface
1077
795
func._dbus_name = dbus_interface
1078
796
return func
1079
1080
797
return decorator
1081
798
1082
799
1084
801
"""Decorator to annotate D-Bus methods, signals or properties
1085
802
Usage:
1086
803
1087
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1088
"org.freedesktop.DBus.Property."
1089
"EmitsChangedSignal": "false"})
1090
804
@dbus_service_property("org.example.Interface", signature="b",
1091
805
access="r")
806
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
807
"org.freedesktop.DBus.Property."
808
"EmitsChangedSignal": "false"})
1092
809
def Property_dbus_property(self):
1093
810
return dbus.Boolean(False)
1094
1095
See also the DBusObjectWithAnnotations class.
1096
811
"""
1097
1098
812
def decorator(func):
1099
813
func._dbus_annotations = annotations
1100
814
return func
1101
1102
815
return decorator
1103
816
1104
817
1105
818
class DBusPropertyException(dbus.exceptions.DBusException):
1106
819
"""A base class for D-Bus property-related exceptions
1107
820
"""
1108
pass
821
def __unicode__(self):
822
return unicode(str(self))
1109
823
1110
824
1111
825
class DBusPropertyAccessException(DBusPropertyException):
1120
834
pass
1121
835
1122
836
1123
class DBusObjectWithAnnotations(dbus.service.Object):
1124
"""A D-Bus object with annotations.
837
class DBusObjectWithProperties(dbus.service.Object):
838
"""A D-Bus object with properties.
1125
839
1126
Classes inheriting from this can use the dbus_annotations
1127
decorator to add annotations to methods or signals.
840
Classes inheriting from this can use the dbus_service_property
841
decorator to expose methods as D-Bus properties. It exposes the
842
standard Get(), Set(), and GetAll() methods on the D-Bus.
1128
843
"""
1129
844
1130
845
@staticmethod
1134
849
If called like _is_dbus_thing("method") it returns a function
1135
850
suitable for use as predicate to inspect.getmembers().
1136
851
"""
1137
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
852
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1138
853
False)
1139
854
1140
855
def _get_all_dbus_things(self, thing):
1141
856
"""Returns a generator of (name, attribute) pairs
1142
857
"""
1143
return ((getattr(athing.__get__(self), "_dbus_name", name),
858
return ((getattr(athing.__get__(self), "_dbus_name",
859
name),
1144
860
athing.__get__(self))
1145
861
for cls in self.__class__.__mro__
1146
862
for name, athing in
1147
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1148
1149
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1150
out_signature = "s",
1151
path_keyword = 'object_path',
1152
connection_keyword = 'connection')
1153
def Introspect(self, object_path, connection):
1154
"""Overloading of standard D-Bus method.
1155
1156
Inserts annotation tags on methods and signals.
1157
"""
1158
xmlstring = dbus.service.Object.Introspect(self, object_path,
1159
connection)
1160
try:
1161
document = xml.dom.minidom.parseString(xmlstring)
1162
1163
for if_tag in document.getElementsByTagName("interface"):
1164
# Add annotation tags
1165
for typ in ("method", "signal"):
1166
for tag in if_tag.getElementsByTagName(typ):
1167
annots = dict()
1168
for name, prop in (self.
1169
_get_all_dbus_things(typ)):
1170
if (name == tag.getAttribute("name")
1171
and prop._dbus_interface
1172
== if_tag.getAttribute("name")):
1173
annots.update(getattr(
1174
prop, "_dbus_annotations", {}))
1175
for name, value in annots.items():
1176
ann_tag = document.createElement(
1177
"annotation")
1178
ann_tag.setAttribute("name", name)
1179
ann_tag.setAttribute("value", value)
1180
tag.appendChild(ann_tag)
1181
# Add interface annotation tags
1182
for annotation, value in dict(
1183
itertools.chain.from_iterable(
1184
annotations().items()
1185
for name, annotations
1186
in self._get_all_dbus_things("interface")
1187
if name == if_tag.getAttribute("name")
1188
)).items():
1189
ann_tag = document.createElement("annotation")
1190
ann_tag.setAttribute("name", annotation)
1191
ann_tag.setAttribute("value", value)
1192
if_tag.appendChild(ann_tag)
1193
# Fix argument name for the Introspect method itself
1194
if (if_tag.getAttribute("name")
1195
== dbus.INTROSPECTABLE_IFACE):
1196
for cn in if_tag.getElementsByTagName("method"):
1197
if cn.getAttribute("name") == "Introspect":
1198
for arg in cn.getElementsByTagName("arg"):
1199
if (arg.getAttribute("direction")
1200
== "out"):
1201
arg.setAttribute("name",
1202
"xml_data")
1203
xmlstring = document.toxml("utf-8")
1204
document.unlink()
1205
except (AttributeError, xml.dom.DOMException,
1206
xml.parsers.expat.ExpatError) as error:
1207
logger.error("Failed to override Introspection method",
1208
exc_info=error)
1209
return xmlstring
1210
1211
1212
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1213
"""A D-Bus object with properties.
1214
1215
Classes inheriting from this can use the dbus_service_property
1216
decorator to expose methods as D-Bus properties. It exposes the
1217
standard Get(), Set(), and GetAll() methods on the D-Bus.
1218
"""
863
inspect.getmembers(cls,
864
self._is_dbus_thing(thing)))
1219
865
1220
866
def _get_dbus_property(self, interface_name, property_name):
1221
867
"""Returns a bound method if one exists which is a D-Bus
1222
868
property with the specified name and interface.
1223
869
"""
1224
for cls in self.__class__.__mro__:
1225
for name, value in inspect.getmembers(
1226
cls, self._is_dbus_thing("property")):
870
for cls in self.__class__.__mro__:
871
for name, value in (inspect.getmembers
872
(cls,
873
self._is_dbus_thing("property"))):
1227
874
if (value._dbus_name == property_name
1228
875
and value._dbus_interface == interface_name):
1229
876
return value.__get__(self)
1230
877
1231
878
# No such property
1232
raise DBusPropertyNotFound("{}:{}.{}".format(
1233
self.dbus_object_path, interface_name, property_name))
1234
1235
@classmethod
1236
def _get_all_interface_names(cls):
1237
"""Get a sequence of all interfaces supported by an object"""
1238
return (name for name in set(getattr(getattr(x, attr),
1239
"_dbus_interface", None)
1240
for x in (inspect.getmro(cls))
1241
for attr in dir(x))
1242
if name is not None)
1243
1244
@dbus.service.method(dbus.PROPERTIES_IFACE,
1245
in_signature="ss",
879
raise DBusPropertyNotFound(self.dbus_object_path + ":"
880
+ interface_name + "."
881
+ property_name)
882
883
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1246
884
out_signature="v")
1247
885
def Get(self, interface_name, property_name):
1248
886
"""Standard D-Bus property Get() method, see D-Bus standard.
1266
904
# The byte_arrays option is not supported yet on
1267
905
# signatures other than "ay".
1268
906
if prop._dbus_signature != "ay":
1269
raise ValueError("Byte arrays not supported for non-"
1270
"'ay' signature {!r}"
1271
.format(prop._dbus_signature))
907
raise ValueError
1272
908
value = dbus.ByteArray(b''.join(chr(byte)
1273
909
for byte in value))
1274
910
prop(value)
1275
911
1276
@dbus.service.method(dbus.PROPERTIES_IFACE,
1277
in_signature="s",
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1278
913
out_signature="a{sv}")
1279
914
def GetAll(self, interface_name):
1280
915
"""Standard D-Bus property GetAll() method, see D-Bus
1295
930
if not hasattr(value, "variant_level"):
1296
931
properties[name] = value
1297
932
continue
1298
properties[name] = type(value)(
1299
value, variant_level = value.variant_level + 1)
933
properties[name] = type(value)(value, variant_level=
934
value.variant_level+1)
1300
935
return dbus.Dictionary(properties, signature="sv")
1301
936
1302
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1303
def PropertiesChanged(self, interface_name, changed_properties,
1304
invalidated_properties):
1305
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1306
standard.
1307
"""
1308
pass
1309
1310
937
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1311
938
out_signature="s",
1312
939
path_keyword='object_path',
1316
943
1317
944
Inserts property tags and interface annotation tags.
1318
945
"""
1319
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1320
object_path,
1321
connection)
946
xmlstring = dbus.service.Object.Introspect(self, object_path,
947
connection)
1322
948
try:
1323
949
document = xml.dom.minidom.parseString(xmlstring)
1324
1325
950
def make_tag(document, name, prop):
1326
951
e = document.createElement("property")
1327
952
e.setAttribute("name", name)
1328
953
e.setAttribute("type", prop._dbus_signature)
1329
954
e.setAttribute("access", prop._dbus_access)
1330
955
return e
1331
1332
956
for if_tag in document.getElementsByTagName("interface"):
1333
957
# Add property tags
1334
958
for tag in (make_tag(document, name, prop)
1337
961
if prop._dbus_interface
1338
962
== if_tag.getAttribute("name")):
1339
963
if_tag.appendChild(tag)
1340
# Add annotation tags for properties
1341
for tag in if_tag.getElementsByTagName("property"):
1342
annots = dict()
1343
for name, prop in self._get_all_dbus_things(
1344
"property"):
1345
if (name == tag.getAttribute("name")
1346
and prop._dbus_interface
1347
== if_tag.getAttribute("name")):
1348
annots.update(getattr(
1349
prop, "_dbus_annotations", {}))
1350
for name, value in annots.items():
1351
ann_tag = document.createElement(
1352
"annotation")
1353
ann_tag.setAttribute("name", name)
1354
ann_tag.setAttribute("value", value)
1355
tag.appendChild(ann_tag)
964
# Add annotation tags
965
for typ in ("method", "signal", "property"):
966
for tag in if_tag.getElementsByTagName(typ):
967
annots = dict()
968
for name, prop in (self.
969
_get_all_dbus_things(typ)):
970
if (name == tag.getAttribute("name")
971
and prop._dbus_interface
972
== if_tag.getAttribute("name")):
973
annots.update(getattr
974
(prop,
975
"_dbus_annotations",
976
{}))
977
for name, value in annots.iteritems():
978
ann_tag = document.createElement(
979
"annotation")
980
ann_tag.setAttribute("name", name)
981
ann_tag.setAttribute("value", value)
982
tag.appendChild(ann_tag)
983
# Add interface annotation tags
984
for annotation, value in dict(
985
itertools.chain.from_iterable(
986
annotations().iteritems()
987
for name, annotations in
988
self._get_all_dbus_things("interface")
989
if name == if_tag.getAttribute("name")
990
)).iteritems():
991
ann_tag = document.createElement("annotation")
992
ann_tag.setAttribute("name", annotation)
993
ann_tag.setAttribute("value", value)
994
if_tag.appendChild(ann_tag)
1356
995
# Add the names to the return values for the
1357
996
# "org.freedesktop.DBus.Properties" methods
1358
997
if (if_tag.getAttribute("name")
1376
1015
exc_info=error)
1377
1016
return xmlstring
1378
1017
1379
try:
1380
dbus.OBJECT_MANAGER_IFACE
1381
except AttributeError:
1382
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1383
1384
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1385
"""A D-Bus object with an ObjectManager.
1386
1387
Classes inheriting from this exposes the standard
1388
GetManagedObjects call and the InterfacesAdded and
1389
InterfacesRemoved signals on the standard
1390
"org.freedesktop.DBus.ObjectManager" interface.
1391
1392
Note: No signals are sent automatically; they must be sent
1393
manually.
1394
"""
1395
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1396
out_signature = "a{oa{sa{sv}}}")
1397
def GetManagedObjects(self):
1398
"""This function must be overridden"""
1399
raise NotImplementedError()
1400
1401
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1402
signature = "oa{sa{sv}}")
1403
def InterfacesAdded(self, object_path, interfaces_and_properties):
1404
pass
1405
1406
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1407
def InterfacesRemoved(self, object_path, interfaces):
1408
pass
1409
1410
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1411
out_signature = "s",
1412
path_keyword = 'object_path',
1413
connection_keyword = 'connection')
1414
def Introspect(self, object_path, connection):
1415
"""Overloading of standard D-Bus method.
1416
1417
Override return argument name of GetManagedObjects to be
1418
"objpath_interfaces_and_properties"
1419
"""
1420
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1421
object_path,
1422
connection)
1423
try:
1424
document = xml.dom.minidom.parseString(xmlstring)
1425
1426
for if_tag in document.getElementsByTagName("interface"):
1427
# Fix argument name for the GetManagedObjects method
1428
if (if_tag.getAttribute("name")
1429
== dbus.OBJECT_MANAGER_IFACE):
1430
for cn in if_tag.getElementsByTagName("method"):
1431
if (cn.getAttribute("name")
1432
== "GetManagedObjects"):
1433
for arg in cn.getElementsByTagName("arg"):
1434
if (arg.getAttribute("direction")
1435
== "out"):
1436
arg.setAttribute(
1437
"name",
1438
"objpath_interfaces"
1439
"_and_properties")
1440
xmlstring = document.toxml("utf-8")
1441
document.unlink()
1442
except (AttributeError, xml.dom.DOMException,
1443
xml.parsers.expat.ExpatError) as error:
1444
logger.error("Failed to override Introspection method",
1445
exc_info = error)
1446
return xmlstring
1447
1018
1448
1019
def datetime_to_dbus(dt, variant_level=0):
1449
1020
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1450
1021
if dt is None:
1451
1022
return dbus.String("", variant_level = variant_level)
1452
return dbus.String(dt.isoformat(), variant_level=variant_level)
1023
return dbus.String(dt.isoformat(),
1024
variant_level=variant_level)
1453
1025
1454
1026
1455
1027
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1475
1047
(from DBusObjectWithProperties) and interfaces (from the
1476
1048
dbus_interface_annotations decorator).
1477
1049
"""
1478
1479
1050
def wrapper(cls):
1480
1051
for orig_interface_name, alt_interface_name in (
1481
alt_interface_names.items()):
1052
alt_interface_names.iteritems()):
1482
1053
attr = {}
1483
1054
interface_names = set()
1484
1055
# Go though all attributes of the class
1486
1057
# Ignore non-D-Bus attributes, and D-Bus attributes
1487
1058
# with the wrong interface name
1488
1059
if (not hasattr(attribute, "_dbus_interface")
1489
or not attribute._dbus_interface.startswith(
1490
orig_interface_name)):
1060
or not attribute._dbus_interface
1061
.startswith(orig_interface_name)):
1491
1062
continue
1492
1063
# Create an alternate D-Bus interface name based on
1493
1064
# the current name
1494
alt_interface = attribute._dbus_interface.replace(
1495
orig_interface_name, alt_interface_name)
1065
alt_interface = (attribute._dbus_interface
1066
.replace(orig_interface_name,
1067
alt_interface_name))
1496
1068
interface_names.add(alt_interface)
1497
1069
# Is this a D-Bus signal?
1498
1070
if getattr(attribute, "_dbus_is_signal", False):
1499
if sys.version_info.major == 2:
1500
# Extract the original non-method undecorated
1501
# function by black magic
1502
nonmethod_func = (dict(
1071
# Extract the original non-method function by
1072
# black magic
1073
nonmethod_func = (dict(
1503
1074
zip(attribute.func_code.co_freevars,
1504
attribute.__closure__))
1505
["func"].cell_contents)
1506
else:
1507
nonmethod_func = attribute
1075
attribute.__closure__))["func"]
1076
.cell_contents)
1508
1077
# Create a new, but exactly alike, function
1509
1078
# object, and decorate it to be a new D-Bus signal
1510
1079
# with the alternate D-Bus interface name
1511
if sys.version_info.major == 2:
1512
new_function = types.FunctionType(
1513
nonmethod_func.func_code,
1514
nonmethod_func.func_globals,
1515
nonmethod_func.func_name,
1516
nonmethod_func.func_defaults,
1517
nonmethod_func.func_closure)
1518
else:
1519
new_function = types.FunctionType(
1520
nonmethod_func.__code__,
1521
nonmethod_func.__globals__,
1522
nonmethod_func.__name__,
1523
nonmethod_func.__defaults__,
1524
nonmethod_func.__closure__)
1525
new_function = (dbus.service.signal(
1526
alt_interface,
1527
attribute._dbus_signature)(new_function))
1080
new_function = (dbus.service.signal
1081
(alt_interface,
1082
attribute._dbus_signature)
1083
(types.FunctionType(
1084
nonmethod_func.func_code,
1085
nonmethod_func.func_globals,
1086
nonmethod_func.func_name,
1087
nonmethod_func.func_defaults,
1088
nonmethod_func.func_closure)))
1528
1089
# Copy annotations, if any
1529
1090
try:
1530
new_function._dbus_annotations = dict(
1531
attribute._dbus_annotations)
1091
new_function._dbus_annotations = (
1092
dict(attribute._dbus_annotations))
1532
1093
except AttributeError:
1533
1094
pass
1534
1095
# Define a creator of a function to call both the
1539
1100
"""This function is a scope container to pass
1540
1101
func1 and func2 to the "call_both" function
1541
1102
outside of its arguments"""
1542
1543
@functools.wraps(func2)
1544
1103
def call_both(*args, **kwargs):
1545
1104
"""This function will emit two D-Bus
1546
1105
signals by calling func1 and func2"""
1547
1106
func1(*args, **kwargs)
1548
1107
func2(*args, **kwargs)
1549
# Make wrapper function look like a D-Bus signal
1550
for name, attr in inspect.getmembers(func2):
1551
if name.startswith("_dbus_"):
1552
setattr(call_both, name, attr)
1553
1554
1108
return call_both
1555
1109
# Create the "call_both" function and add it to
1556
1110
# the class
1561
1115
# object. Decorate it to be a new D-Bus method
1562
1116
# with the alternate D-Bus interface name. Add it
1563
1117
# to the class.
1564
attr[attrname] = (
1565
dbus.service.method(
1566
alt_interface,
1567
attribute._dbus_in_signature,
1568
attribute._dbus_out_signature)
1569
(types.FunctionType(attribute.func_code,
1570
attribute.func_globals,
1571
attribute.func_name,
1572
attribute.func_defaults,
1573
attribute.func_closure)))
1118
attr[attrname] = (dbus.service.method
1119
(alt_interface,
1120
attribute._dbus_in_signature,
1121
attribute._dbus_out_signature)
1122
(types.FunctionType
1123
(attribute.func_code,
1124
attribute.func_globals,
1125
attribute.func_name,
1126
attribute.func_defaults,
1127
attribute.func_closure)))
1574
1128
# Copy annotations, if any
1575
1129
try:
1576
attr[attrname]._dbus_annotations = dict(
1577
attribute._dbus_annotations)
1130
attr[attrname]._dbus_annotations = (
1131
dict(attribute._dbus_annotations))
1578
1132
except AttributeError:
1579
1133
pass
1580
1134
# Is this a D-Bus property?
1583
1137
# object, and decorate it to be a new D-Bus
1584
1138
# property with the alternate D-Bus interface
1585
1139
# name. Add it to the class.
1586
attr[attrname] = (dbus_service_property(
1587
alt_interface, attribute._dbus_signature,
1588
attribute._dbus_access,
1589
attribute._dbus_get_args_options
1590
["byte_arrays"])
1591
(types.FunctionType(
1592
attribute.func_code,
1593
attribute.func_globals,
1594
attribute.func_name,
1595
attribute.func_defaults,
1596
attribute.func_closure)))
1140
attr[attrname] = (dbus_service_property
1141
(alt_interface,
1142
attribute._dbus_signature,
1143
attribute._dbus_access,
1144
attribute
1145
._dbus_get_args_options
1146
["byte_arrays"])
1147
(types.FunctionType
1148
(attribute.func_code,
1149
attribute.func_globals,
1150
attribute.func_name,
1151
attribute.func_defaults,
1152
attribute.func_closure)))
1597
1153
# Copy annotations, if any
1598
1154
try:
1599
attr[attrname]._dbus_annotations = dict(
1600
attribute._dbus_annotations)
1155
attr[attrname]._dbus_annotations = (
1156
dict(attribute._dbus_annotations))
1601
1157
except AttributeError:
1602
1158
pass
1603
1159
# Is this a D-Bus interface?
1606
1162
# object. Decorate it to be a new D-Bus interface
1607
1163
# with the alternate D-Bus interface name. Add it
1608
1164
# to the class.
1609
attr[attrname] = (
1610
dbus_interface_annotations(alt_interface)
1611
(types.FunctionType(attribute.func_code,
1612
attribute.func_globals,
1613
attribute.func_name,
1614
attribute.func_defaults,
1615
attribute.func_closure)))
1165
attr[attrname] = (dbus_interface_annotations
1166
(alt_interface)
1167
(types.FunctionType
1168
(attribute.func_code,
1169
attribute.func_globals,
1170
attribute.func_name,
1171
attribute.func_defaults,
1172
attribute.func_closure)))
1616
1173
if deprecate:
1617
1174
# Deprecate all alternate interfaces
1618
iname="_AlternateDBusNames_interface_annotation{}"
1175
iname="_AlternateDBusNames_interface_annotation{0}"
1619
1176
for interface_name in interface_names:
1620
1621
1177
@dbus_interface_annotations(interface_name)
1622
1178
def func(self):
1623
1179
return { "org.freedesktop.DBus.Deprecated":
1624
"true" }
1180
"true" }
1625
1181
# Find an unused name
1626
1182
for aname in (iname.format(i)
1627
1183
for i in itertools.count()):
1631
1187
if interface_names:
1632
1188
# Replace the class with a new subclass of it with
1633
1189
# methods, signals, etc. as created above.
1634
cls = type(b"{}Alternate".format(cls.__name__),
1635
(cls, ), attr)
1190
cls = type(b"{0}Alternate".format(cls.__name__),
1191
(cls,), attr)
1636
1192
return cls
1637
1638
1193
return wrapper
1639
1194
1640
1195
1641
1196
@alternate_dbus_interfaces({"se.recompile.Mandos":
1642
"se.bsnet.fukt.Mandos"})
1197
"se.bsnet.fukt.Mandos"})
1643
1198
class ClientDBus(Client, DBusObjectWithProperties):
1644
1199
"""A Client class using D-Bus
1645
1200
1649
1204
"""
1650
1205
1651
1206
runtime_expansions = (Client.runtime_expansions
1652
+ ("dbus_object_path", ))
1653
1654
_interface = "se.recompile.Mandos.Client"
1207
+ ("dbus_object_path",))
1655
1208
1656
1209
# dbus.service.Object doesn't use super(), so we can't either.
1657
1210
1660
1213
Client.__init__(self, *args, **kwargs)
1661
1214
# Only now, when this client is initialized, can it show up on
1662
1215
# the D-Bus
1663
client_object_name = str(self.name).translate(
1216
client_object_name = unicode(self.name).translate(
1664
1217
{ord("."): ord("_"),
1665
1218
ord("-"): ord("_")})
1666
self.dbus_object_path = dbus.ObjectPath(
1667
"/clients/" + client_object_name)
1219
self.dbus_object_path = (dbus.ObjectPath
1220
("/clients/" + client_object_name))
1668
1221
DBusObjectWithProperties.__init__(self, self.bus,
1669
1222
self.dbus_object_path)
1670
1223
1671
def notifychangeproperty(transform_func, dbus_name,
1672
type_func=lambda x: x,
1673
variant_level=1,
1674
invalidate_only=False,
1675
_interface=_interface):
1224
def notifychangeproperty(transform_func,
1225
dbus_name, type_func=lambda x: x,
1226
variant_level=1):
1676
1227
""" Modify a variable so that it's a property which announces
1677
1228
its changes to DBus.
1678
1229
1683
1234
to the D-Bus. Default: no transform
1684
1235
variant_level: D-Bus variant level. Default: 1
1685
1236
"""
1686
attrname = "_{}".format(dbus_name)
1687
1237
attrname = "_{0}".format(dbus_name)
1688
1238
def setter(self, value):
1689
1239
if hasattr(self, "dbus_object_path"):
1690
1240
if (not hasattr(self, attrname) or
1691
1241
type_func(getattr(self, attrname, None))
1692
1242
!= type_func(value)):
1693
if invalidate_only:
1694
self.PropertiesChanged(
1695
_interface, dbus.Dictionary(),
1696
dbus.Array((dbus_name, )))
1697
else:
1698
dbus_value = transform_func(
1699
type_func(value),
1700
variant_level = variant_level)
1701
self.PropertyChanged(dbus.String(dbus_name),
1702
dbus_value)
1703
self.PropertiesChanged(
1704
_interface,
1705
dbus.Dictionary({ dbus.String(dbus_name):
1706
dbus_value }),
1707
dbus.Array())
1243
dbus_value = transform_func(type_func(value),
1244
variant_level
1245
=variant_level)
1246
self.PropertyChanged(dbus.String(dbus_name),
1247
dbus_value)
1708
1248
setattr(self, attrname, value)
1709
1249
1710
1250
return property(lambda self: getattr(self, attrname), setter)
1716
1256
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1717
1257
last_enabled = notifychangeproperty(datetime_to_dbus,
1718
1258
"LastEnabled")
1719
checker = notifychangeproperty(
1720
dbus.Boolean, "CheckerRunning",
1721
type_func = lambda checker: checker is not None)
1259
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1260
type_func = lambda checker:
1261
checker is not None)
1722
1262
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1723
1263
"LastCheckedOK")
1724
1264
last_checker_status = notifychangeproperty(dbus.Int16,
1727
1267
datetime_to_dbus, "LastApprovalRequest")
1728
1268
approved_by_default = notifychangeproperty(dbus.Boolean,
1729
1269
"ApprovedByDefault")
1730
approval_delay = notifychangeproperty(
1731
dbus.UInt64, "ApprovalDelay",
1732
type_func = lambda td: td.total_seconds() * 1000)
1270
approval_delay = notifychangeproperty(dbus.UInt64,
1271
"ApprovalDelay",
1272
type_func =
1273
timedelta_to_milliseconds)
1733
1274
approval_duration = notifychangeproperty(
1734
1275
dbus.UInt64, "ApprovalDuration",
1735
type_func = lambda td: td.total_seconds() * 1000)
1276
type_func = timedelta_to_milliseconds)
1736
1277
host = notifychangeproperty(dbus.String, "Host")
1737
timeout = notifychangeproperty(
1738
dbus.UInt64, "Timeout",
1739
type_func = lambda td: td.total_seconds() * 1000)
1278
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1279
type_func =
1280
timedelta_to_milliseconds)
1740
1281
extended_timeout = notifychangeproperty(
1741
1282
dbus.UInt64, "ExtendedTimeout",
1742
type_func = lambda td: td.total_seconds() * 1000)
1743
interval = notifychangeproperty(
1744
dbus.UInt64, "Interval",
1745
type_func = lambda td: td.total_seconds() * 1000)
1283
type_func = timedelta_to_milliseconds)
1284
interval = notifychangeproperty(dbus.UInt64,
1285
"Interval",
1286
type_func =
1287
timedelta_to_milliseconds)
1746
1288
checker_command = notifychangeproperty(dbus.String, "Checker")
1747
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1748
invalidate_only=True)
1749
1289
1750
1290
del notifychangeproperty
1751
1291
1758
1298
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1759
1299
Client.__del__(self, *args, **kwargs)
1760
1300
1761
def checker_callback(self, source, condition,
1762
connection, command, *args, **kwargs):
1763
ret = Client.checker_callback(self, source, condition,
1764
connection, command, *args,
1765
**kwargs)
1766
exitstatus = self.last_checker_status
1767
if exitstatus >= 0:
1301
def checker_callback(self, pid, condition, command,
1302
*args, **kwargs):
1303
self.checker_callback_tag = None
1304
self.checker = None
1305
if os.WIFEXITED(condition):
1306
exitstatus = os.WEXITSTATUS(condition)
1768
1307
# Emit D-Bus signal
1769
1308
self.CheckerCompleted(dbus.Int16(exitstatus),
1770
# This is specific to GNU libC
1771
dbus.Int64(exitstatus << 8),
1309
dbus.Int64(condition),
1772
1310
dbus.String(command))
1773
1311
else:
1774
1312
# Emit D-Bus signal
1775
1313
self.CheckerCompleted(dbus.Int16(-1),
1776
dbus.Int64(
1777
# This is specific to GNU libC
1778
(exitstatus << 8)
1779
| self.last_checker_signal),
1314
dbus.Int64(condition),
1780
1315
dbus.String(command))
1781
return ret
1316
1317
return Client.checker_callback(self, pid, condition, command,
1318
*args, **kwargs)
1782
1319
1783
1320
def start_checker(self, *args, **kwargs):
1784
old_checker_pid = getattr(self.checker, "pid", None)
1321
old_checker = self.checker
1322
if self.checker is not None:
1323
old_checker_pid = self.checker.pid
1324
else:
1325
old_checker_pid = None
1785
1326
r = Client.start_checker(self, *args, **kwargs)
1786
1327
# Only if new checker process was started
1787
1328
if (self.checker is not None
1796
1337
1797
1338
def approve(self, value=True):
1798
1339
self.approved = value
1799
gobject.timeout_add(int(self.approval_duration.total_seconds()
1800
* 1000), self._reset_approved)
1340
gobject.timeout_add(timedelta_to_milliseconds
1341
(self.approval_duration),
1342
self._reset_approved)
1801
1343
self.send_changedstate()
1802
1344
1803
1345
## D-Bus methods, signals & properties
1346
_interface = "se.recompile.Mandos.Client"
1804
1347
1805
1348
## Interfaces
1806
1349
1350
@dbus_interface_annotations(_interface)
1351
def _foo(self):
1352
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1353
"false"}
1354
1807
1355
## Signals
1808
1356
1809
1357
# CheckerCompleted - signal
1819
1367
pass
1820
1368
1821
1369
# PropertyChanged - signal
1822
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1823
1370
@dbus.service.signal(_interface, signature="sv")
1824
1371
def PropertyChanged(self, property, value):
1825
1372
"D-Bus signal"
1859
1406
self.checked_ok()
1860
1407
1861
1408
# Enable - method
1862
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1863
1409
@dbus.service.method(_interface)
1864
1410
def Enable(self):
1865
1411
"D-Bus method"
1866
1412
self.enable()
1867
1413
1868
1414
# StartChecker - method
1869
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1870
1415
@dbus.service.method(_interface)
1871
1416
def StartChecker(self):
1872
1417
"D-Bus method"
1873
1418
self.start_checker()
1874
1419
1875
1420
# Disable - method
1876
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1877
1421
@dbus.service.method(_interface)
1878
1422
def Disable(self):
1879
1423
"D-Bus method"
1880
1424
self.disable()
1881
1425
1882
1426
# StopChecker - method
1883
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1884
1427
@dbus.service.method(_interface)
1885
1428
def StopChecker(self):
1886
1429
self.stop_checker()
1893
1436
return dbus.Boolean(bool(self.approvals_pending))
1894
1437
1895
1438
# ApprovedByDefault - property
1896
@dbus_service_property(_interface,
1897
signature="b",
1439
@dbus_service_property(_interface, signature="b",
1898
1440
access="readwrite")
1899
1441
def ApprovedByDefault_dbus_property(self, value=None):
1900
1442
if value is None: # get
1902
1444
self.approved_by_default = bool(value)
1903
1445
1904
1446
# ApprovalDelay - property
1905
@dbus_service_property(_interface,
1906
signature="t",
1447
@dbus_service_property(_interface, signature="t",
1907
1448
access="readwrite")
1908
1449
def ApprovalDelay_dbus_property(self, value=None):
1909
1450
if value is None: # get
1910
return dbus.UInt64(self.approval_delay.total_seconds()
1911
* 1000)
1451
return dbus.UInt64(self.approval_delay_milliseconds())
1912
1452
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1913
1453
1914
1454
# ApprovalDuration - property
1915
@dbus_service_property(_interface,
1916
signature="t",
1455
@dbus_service_property(_interface, signature="t",
1917
1456
access="readwrite")
1918
1457
def ApprovalDuration_dbus_property(self, value=None):
1919
1458
if value is None: # get
1920
return dbus.UInt64(self.approval_duration.total_seconds()
1921
* 1000)
1459
return dbus.UInt64(timedelta_to_milliseconds(
1460
self.approval_duration))
1922
1461
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1923
1462
1924
1463
# Name - property
1925
@dbus_annotations(
1926
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1927
1464
@dbus_service_property(_interface, signature="s", access="read")
1928
1465
def Name_dbus_property(self):
1929
1466
return dbus.String(self.name)
1930
1467
1931
1468
# Fingerprint - property
1932
@dbus_annotations(
1933
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1934
1469
@dbus_service_property(_interface, signature="s", access="read")
1935
1470
def Fingerprint_dbus_property(self):
1936
1471
return dbus.String(self.fingerprint)
1937
1472
1938
1473
# Host - property
1939
@dbus_service_property(_interface,
1940
signature="s",
1474
@dbus_service_property(_interface, signature="s",
1941
1475
access="readwrite")
1942
1476
def Host_dbus_property(self, value=None):
1943
1477
if value is None: # get
1944
1478
return dbus.String(self.host)
1945
self.host = str(value)
1479
self.host = unicode(value)
1946
1480
1947
1481
# Created - property
1948
@dbus_annotations(
1949
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1950
1482
@dbus_service_property(_interface, signature="s", access="read")
1951
1483
def Created_dbus_property(self):
1952
1484
return datetime_to_dbus(self.created)
1957
1489
return datetime_to_dbus(self.last_enabled)
1958
1490
1959
1491
# Enabled - property
1960
@dbus_service_property(_interface,
1961
signature="b",
1492
@dbus_service_property(_interface, signature="b",
1962
1493
access="readwrite")
1963
1494
def Enabled_dbus_property(self, value=None):
1964
1495
if value is None: # get
1969
1500
self.disable()
1970
1501
1971
1502
# LastCheckedOK - property
1972
@dbus_service_property(_interface,
1973
signature="s",
1503
@dbus_service_property(_interface, signature="s",
1974
1504
access="readwrite")
1975
1505
def LastCheckedOK_dbus_property(self, value=None):
1976
1506
if value is not None:
1979
1509
return datetime_to_dbus(self.last_checked_ok)
1980
1510
1981
1511
# LastCheckerStatus - property
1982
@dbus_service_property(_interface, signature="n", access="read")
1512
@dbus_service_property(_interface, signature="n",
1513
access="read")
1983
1514
def LastCheckerStatus_dbus_property(self):
1984
1515
return dbus.Int16(self.last_checker_status)
1985
1516
1994
1525
return datetime_to_dbus(self.last_approval_request)
1995
1526
1996
1527
# Timeout - property
1997
@dbus_service_property(_interface,
1998
signature="t",
1528
@dbus_service_property(_interface, signature="t",
1999
1529
access="readwrite")
2000
1530
def Timeout_dbus_property(self, value=None):
2001
1531
if value is None: # get
2002
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1532
return dbus.UInt64(self.timeout_milliseconds())
2003
1533
old_timeout = self.timeout
2004
1534
self.timeout = datetime.timedelta(0, 0, 0, value)
2005
1535
# Reschedule disabling
2014
1544
is None):
2015
1545
return
2016
1546
gobject.source_remove(self.disable_initiator_tag)
2017
self.disable_initiator_tag = gobject.timeout_add(
2018
int((self.expires - now).total_seconds() * 1000),
2019
self.disable)
1547
self.disable_initiator_tag = (
1548
gobject.timeout_add(
1549
timedelta_to_milliseconds(self.expires - now),
1550
self.disable))
2020
1551
2021
1552
# ExtendedTimeout - property
2022
@dbus_service_property(_interface,
2023
signature="t",
1553
@dbus_service_property(_interface, signature="t",
2024
1554
access="readwrite")
2025
1555
def ExtendedTimeout_dbus_property(self, value=None):
2026
1556
if value is None: # get
2027
return dbus.UInt64(self.extended_timeout.total_seconds()
2028
* 1000)
1557
return dbus.UInt64(self.extended_timeout_milliseconds())
2029
1558
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2030
1559
2031
1560
# Interval - property
2032
@dbus_service_property(_interface,
2033
signature="t",
1561
@dbus_service_property(_interface, signature="t",
2034
1562
access="readwrite")
2035
1563
def Interval_dbus_property(self, value=None):
2036
1564
if value is None: # get
2037
return dbus.UInt64(self.interval.total_seconds() * 1000)
1565
return dbus.UInt64(self.interval_milliseconds())
2038
1566
self.interval = datetime.timedelta(0, 0, 0, value)
2039
1567
if getattr(self, "checker_initiator_tag", None) is None:
2040
1568
return
2041
1569
if self.enabled:
2042
1570
# Reschedule checker run
2043
1571
gobject.source_remove(self.checker_initiator_tag)
2044
self.checker_initiator_tag = gobject.timeout_add(
2045
value, self.start_checker)
2046
self.start_checker() # Start one now, too
1572
self.checker_initiator_tag = (gobject.timeout_add
1573
(value, self.start_checker))
1574
self.start_checker() # Start one now, too
2047
1575
2048
1576
# Checker - property
2049
@dbus_service_property(_interface,
2050
signature="s",
1577
@dbus_service_property(_interface, signature="s",
2051
1578
access="readwrite")
2052
1579
def Checker_dbus_property(self, value=None):
2053
1580
if value is None: # get
2054
1581
return dbus.String(self.checker_command)
2055
self.checker_command = str(value)
1582
self.checker_command = unicode(value)
2056
1583
2057
1584
# CheckerRunning - property
2058
@dbus_service_property(_interface,
2059
signature="b",
1585
@dbus_service_property(_interface, signature="b",
2060
1586
access="readwrite")
2061
1587
def CheckerRunning_dbus_property(self, value=None):
2062
1588
if value is None: # get
2067
1593
self.stop_checker()
2068
1594
2069
1595
# ObjectPath - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2072
"org.freedesktop.DBus.Deprecated": "true"})
2073
1596
@dbus_service_property(_interface, signature="o", access="read")
2074
1597
def ObjectPath_dbus_property(self):
2075
1598
return self.dbus_object_path # is already a dbus.ObjectPath
2076
1599
2077
1600
# Secret = property
2078
@dbus_annotations(
2079
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2080
"invalidates"})
2081
@dbus_service_property(_interface,
2082
signature="ay",
2083
access="write",
2084
byte_arrays=True)
1601
@dbus_service_property(_interface, signature="ay",
1602
access="write", byte_arrays=True)
2085
1603
def Secret_dbus_property(self, value):
2086
self.secret = bytes(value)
1604
self.secret = str(value)
2087
1605
2088
1606
del _interface
2089
1607
2093
1611
self._pipe = child_pipe
2094
1612
self._pipe.send(('init', fpr, address))
2095
1613
if not self._pipe.recv():
2096
raise KeyError(fpr)
1614
raise KeyError()
2097
1615
2098
1616
def __getattribute__(self, name):
2099
1617
if name == '_pipe':
2103
1621
if data[0] == 'data':
2104
1622
return data[1]
2105
1623
if data[0] == 'function':
2106
2107
1624
def func(*args, **kwargs):
2108
1625
self._pipe.send(('funcall', name, args, kwargs))
2109
1626
return self._pipe.recv()[1]
2110
2111
1627
return func
2112
1628
2113
1629
def __setattr__(self, name, value):
2125
1641
def handle(self):
2126
1642
with contextlib.closing(self.server.child_pipe) as child_pipe:
2127
1643
logger.info("TCP connection from: %s",
2128
str(self.client_address))
1644
unicode(self.client_address))
2129
1645
logger.debug("Pipe FD: %d",
2130
1646
self.server.child_pipe.fileno())
2131
1647
2132
session = gnutls.ClientSession(self.request)
1648
session = (gnutls.connection
1649
.ClientSession(self.request,
1650
gnutls.connection
1651
.X509Credentials()))
1652
1653
# Note: gnutls.connection.X509Credentials is really a
1654
# generic GnuTLS certificate credentials object so long as
1655
# no X.509 keys are added to it. Therefore, we can use it
1656
# here despite using OpenPGP certificates.
2133
1657
2134
1658
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2135
1659
# "+AES-256-CBC", "+SHA1",
2139
1663
priority = self.server.gnutls_priority
2140
1664
if priority is None:
2141
1665
priority = "NORMAL"
2142
gnutls.priority_set_direct(session._c_object, priority,
2143
None)
1666
(gnutls.library.functions
1667
.gnutls_priority_set_direct(session._c_object,
1668
priority, None))
2144
1669
2145
1670
# Start communication using the Mandos protocol
2146
1671
# Get protocol number
2148
1673
logger.debug("Protocol version: %r", line)
2149
1674
try:
2150
1675
if int(line.strip().split()[0]) > 1:
2151
raise RuntimeError(line)
1676
raise RuntimeError
2152
1677
except (ValueError, IndexError, RuntimeError) as error:
2153
1678
logger.error("Unknown protocol version: %s", error)
2154
1679
return
2156
1681
# Start GnuTLS connection
2157
1682
try:
2158
1683
session.handshake()
2159
except gnutls.Error as error:
1684
except gnutls.errors.GNUTLSError as error:
2160
1685
logger.warning("Handshake failed: %s", error)
2161
1686
# Do not run session.bye() here: the session is not
2162
1687
# established. Just abandon the request.
2166
1691
approval_required = False
2167
1692
try:
2168
1693
try:
2169
fpr = self.fingerprint(
2170
self.peer_certificate(session))
2171
except (TypeError, gnutls.Error) as error:
1694
fpr = self.fingerprint(self.peer_certificate
1695
(session))
1696
except (TypeError,
1697
gnutls.errors.GNUTLSError) as error:
2172
1698
logger.warning("Bad certificate: %s", error)
2173
1699
return
2174
1700
logger.debug("Fingerprint: %s", fpr)
2187
1713
while True:
2188
1714
if not client.enabled:
2189
1715
logger.info("Client %s is disabled",
2190
client.name)
1716
client.name)
2191
1717
if self.server.use_dbus:
2192
1718
# Emit D-Bus signal
2193
1719
client.Rejected("Disabled")
2202
1728
if self.server.use_dbus:
2203
1729
# Emit D-Bus signal
2204
1730
client.NeedApproval(
2205
client.approval_delay.total_seconds()
2206
* 1000, client.approved_by_default)
1731
client.approval_delay_milliseconds(),
1732
client.approved_by_default)
2207
1733
else:
2208
1734
logger.warning("Client %s was not approved",
2209
1735
client.name)
2215
1741
#wait until timeout or approved
2216
1742
time = datetime.datetime.now()
2217
1743
client.changedstate.acquire()
2218
client.changedstate.wait(delay.total_seconds())
1744
client.changedstate.wait(
1745
float(timedelta_to_milliseconds(delay)
1746
/ 1000))
2219
1747
client.changedstate.release()
2220
1748
time2 = datetime.datetime.now()
2221
1749
if (time2 - time) >= delay:
2232
1760
else:
2233
1761
delay -= time2 - time
2234
1762
2235
try:
2236
session.send(client.secret)
2237
except gnutls.Error as error:
2238
logger.warning("gnutls send failed",
2239
exc_info = error)
2240
return
1763
sent_size = 0
1764
while sent_size < len(client.secret):
1765
try:
1766
sent = session.send(client.secret[sent_size:])
1767
except gnutls.errors.GNUTLSError as error:
1768
logger.warning("gnutls send failed",
1769
exc_info=error)
1770
return
1771
logger.debug("Sent: %d, remaining: %d",
1772
sent, len(client.secret)
1773
- (sent_size + sent))
1774
sent_size += sent
2241
1775
2242
1776
logger.info("Sending secret to %s", client.name)
2243
1777
# bump the timeout using extended_timeout
2251
1785
client.approvals_pending -= 1
2252
1786
try:
2253
1787
session.bye()
2254
except gnutls.Error as error:
1788
except gnutls.errors.GNUTLSError as error:
2255
1789
logger.warning("GnuTLS bye failed",
2256
1790
exc_info=error)
2257
1791
2259
1793
def peer_certificate(session):
2260
1794
"Return the peer's OpenPGP certificate as a bytestring"
2261
1795
# If not an OpenPGP certificate...
2262
if (gnutls.certificate_type_get(session._c_object)
2263
!= gnutls.CRT_OPENPGP):
2264
# ...return invalid data
2265
return b""
1796
if (gnutls.library.functions
1797
.gnutls_certificate_type_get(session._c_object)
1798
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1799
# ...do the normal thing
1800
return session.peer_certificate
2266
1801
list_size = ctypes.c_uint(1)
2267
cert_list = (gnutls.certificate_get_peers
1802
cert_list = (gnutls.library.functions
1803
.gnutls_certificate_get_peers
2268
1804
(session._c_object, ctypes.byref(list_size)))
2269
1805
if not bool(cert_list) and list_size.value != 0:
2270
raise gnutls.Error("error getting peer certificate")
1806
raise gnutls.errors.GNUTLSError("error getting peer"
1807
" certificate")
2271
1808
if list_size.value == 0:
2272
1809
return None
2273
1810
cert = cert_list[0]
2277
1814
def fingerprint(openpgp):
2278
1815
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2279
1816
# New GnuTLS "datum" with the OpenPGP public key
2280
datum = gnutls.datum_t(
2281
ctypes.cast(ctypes.c_char_p(openpgp),
2282
ctypes.POINTER(ctypes.c_ubyte)),
2283
ctypes.c_uint(len(openpgp)))
1817
datum = (gnutls.library.types
1818
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1819
ctypes.POINTER
1820
(ctypes.c_ubyte)),
1821
ctypes.c_uint(len(openpgp))))
2284
1822
# New empty GnuTLS certificate
2285
crt = gnutls.openpgp_crt_t()
2286
gnutls.openpgp_crt_init(ctypes.byref(crt))
1823
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1824
(gnutls.library.functions
1825
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2287
1826
# Import the OpenPGP public key into the certificate
2288
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2289
gnutls.OPENPGP_FMT_RAW)
1827
(gnutls.library.functions
1828
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1829
gnutls.library.constants
1830
.GNUTLS_OPENPGP_FMT_RAW))
2290
1831
# Verify the self signature in the key
2291
1832
crtverify = ctypes.c_uint()
2292
gnutls.openpgp_crt_verify_self(crt, 0,
2293
ctypes.byref(crtverify))
1833
(gnutls.library.functions
1834
.gnutls_openpgp_crt_verify_self(crt, 0,
1835
ctypes.byref(crtverify)))
2294
1836
if crtverify.value != 0:
2295
gnutls.openpgp_crt_deinit(crt)
2296
raise gnutls.CertificateSecurityError("Verify failed")
1837
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1838
raise (gnutls.errors.CertificateSecurityError
1839
("Verify failed"))
2297
1840
# New buffer for the fingerprint
2298
1841
buf = ctypes.create_string_buffer(20)
2299
1842
buf_len = ctypes.c_size_t()
2300
1843
# Get the fingerprint from the certificate into the buffer
2301
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2302
ctypes.byref(buf_len))
1844
(gnutls.library.functions
1845
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1846
ctypes.byref(buf_len)))
2303
1847
# Deinit the certificate
2304
gnutls.openpgp_crt_deinit(crt)
1848
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2305
1849
# Convert the buffer to a Python bytestring
2306
1850
fpr = ctypes.string_at(buf, buf_len.value)
2307
1851
# Convert the bytestring to hexadecimal notation
2311
1855
2312
1856
class MultiprocessingMixIn(object):
2313
1857
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2314
2315
1858
def sub_process_main(self, request, address):
2316
1859
try:
2317
1860
self.finish_request(request, address)
2329
1872
2330
1873
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2331
1874
""" adds a pipe to the MixIn """
2332
2333
1875
def process_request(self, request, client_address):
2334
1876
"""Overrides and wraps the original process_request().
2335
1877
2344
1886
2345
1887
def add_pipe(self, parent_pipe, proc):
2346
1888
"""Dummy function; override as necessary"""
2347
raise NotImplementedError()
1889
raise NotImplementedError
2348
1890
2349
1891
2350
1892
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2356
1898
interface: None or a network interface name (string)
2357
1899
use_ipv6: Boolean; to use IPv6 or not
2358
1900
"""
2359
2360
1901
def __init__(self, server_address, RequestHandlerClass,
2361
interface=None,
2362
use_ipv6=True,
2363
socketfd=None):
1902
interface=None, use_ipv6=True, socketfd=None):
2364
1903
"""If socketfd is set, use that file descriptor instead of
2365
1904
creating a new one with socket.socket().
2366
1905
"""
2407
1946
self.interface)
2408
1947
else:
2409
1948
try:
2410
self.socket.setsockopt(
2411
socket.SOL_SOCKET, SO_BINDTODEVICE,
2412
(self.interface + "\0").encode("utf-8"))
1949
self.socket.setsockopt(socket.SOL_SOCKET,
1950
SO_BINDTODEVICE,
1951
str(self.interface
1952
+ '\0'))
2413
1953
except socket.error as error:
2414
1954
if error.errno == errno.EPERM:
2415
logger.error("No permission to bind to"
2416
" interface %s", self.interface)
1955
logger.error("No permission to"
1956
" bind to interface %s",
1957
self.interface)
2417
1958
elif error.errno == errno.ENOPROTOOPT:
2418
1959
logger.error("SO_BINDTODEVICE not available;"
2419
1960
" cannot bind to interface %s",
2420
1961
self.interface)
2421
1962
elif error.errno == errno.ENODEV:
2422
logger.error("Interface %s does not exist,"
2423
" cannot bind", self.interface)
1963
logger.error("Interface %s does not"
1964
" exist, cannot bind",
1965
self.interface)
2424
1966
else:
2425
1967
raise
2426
1968
# Only bind(2) the socket if we really need to.
2429
1971
if self.address_family == socket.AF_INET6:
2430
1972
any_address = "::" # in6addr_any
2431
1973
else:
2432
any_address = "0.0.0.0" # INADDR_ANY
1974
any_address = socket.INADDR_ANY
2433
1975
self.server_address = (any_address,
2434
1976
self.server_address[1])
2435
1977
elif not self.server_address[1]:
2436
self.server_address = (self.server_address[0], 0)
1978
self.server_address = (self.server_address[0],
1979
0)
2437
1980
# if self.interface:
2438
1981
# self.server_address = (self.server_address[0],
2439
1982
# 0, # port
2453
1996
2454
1997
Assumes a gobject.MainLoop event loop.
2455
1998
"""
2456
2457
1999
def __init__(self, server_address, RequestHandlerClass,
2458
interface=None,
2459
use_ipv6=True,
2460
clients=None,
2461
gnutls_priority=None,
2462
use_dbus=True,
2463
socketfd=None):
2000
interface=None, use_ipv6=True, clients=None,
2001
gnutls_priority=None, use_dbus=True, socketfd=None):
2464
2002
self.enabled = False
2465
2003
self.clients = clients
2466
2004
if self.clients is None:
2472
2010
interface = interface,
2473
2011
use_ipv6 = use_ipv6,
2474
2012
socketfd = socketfd)
2475
2476
2013
def server_activate(self):
2477
2014
if self.enabled:
2478
2015
return socketserver.TCPServer.server_activate(self)
2482
2019
2483
2020
def add_pipe(self, parent_pipe, proc):
2484
2021
# Call "handle_ipc" for both data and EOF events
2485
gobject.io_add_watch(
2486
parent_pipe.fileno(),
2487
gobject.IO_IN | gobject.IO_HUP,
2488
functools.partial(self.handle_ipc,
2489
parent_pipe = parent_pipe,
2490
proc = proc))
2022
gobject.io_add_watch(parent_pipe.fileno(),
2023
gobject.IO_IN | gobject.IO_HUP,
2024
functools.partial(self.handle_ipc,
2025
parent_pipe =
2026
parent_pipe,
2027
proc = proc))
2491
2028
2492
def handle_ipc(self, source, condition,
2493
parent_pipe=None,
2494
proc = None,
2495
client_object=None):
2029
def handle_ipc(self, source, condition, parent_pipe=None,
2030
proc = None, client_object=None):
2496
2031
# error, or the other end of multiprocessing.Pipe has closed
2497
2032
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2498
2033
# Wait for other process to exit
2521
2056
parent_pipe.send(False)
2522
2057
return False
2523
2058
2524
gobject.io_add_watch(
2525
parent_pipe.fileno(),
2526
gobject.IO_IN | gobject.IO_HUP,
2527
functools.partial(self.handle_ipc,
2528
parent_pipe = parent_pipe,
2529
proc = proc,
2530
client_object = client))
2059
gobject.io_add_watch(parent_pipe.fileno(),
2060
gobject.IO_IN | gobject.IO_HUP,
2061
functools.partial(self.handle_ipc,
2062
parent_pipe =
2063
parent_pipe,
2064
proc = proc,
2065
client_object =
2066
client))
2531
2067
parent_pipe.send(True)
2532
2068
# remove the old hook in favor of the new above hook on
2533
2069
# same fileno
2539
2075
2540
2076
parent_pipe.send(('data', getattr(client_object,
2541
2077
funcname)(*args,
2542
**kwargs)))
2078
**kwargs)))
2543
2079
2544
2080
if command == 'getattr':
2545
2081
attrname = request[1]
2546
if isinstance(client_object.__getattribute__(attrname),
2547
collections.Callable):
2548
parent_pipe.send(('function', ))
2082
if callable(client_object.__getattribute__(attrname)):
2083
parent_pipe.send(('function',))
2549
2084
else:
2550
parent_pipe.send((
2551
'data', client_object.__getattribute__(attrname)))
2085
parent_pipe.send(('data', client_object
2086
.__getattribute__(attrname)))
2552
2087
2553
2088
if command == 'setattr':
2554
2089
attrname = request[1]
2558
2093
return True
2559
2094
2560
2095
2561
def rfc3339_duration_to_delta(duration):
2562
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2563
2564
>>> rfc3339_duration_to_delta("P7D")
2565
datetime.timedelta(7)
2566
>>> rfc3339_duration_to_delta("PT60S")
2567
datetime.timedelta(0, 60)
2568
>>> rfc3339_duration_to_delta("PT60M")
2569
datetime.timedelta(0, 3600)
2570
>>> rfc3339_duration_to_delta("PT24H")
2571
datetime.timedelta(1)
2572
>>> rfc3339_duration_to_delta("P1W")
2573
datetime.timedelta(7)
2574
>>> rfc3339_duration_to_delta("PT5M30S")
2575
datetime.timedelta(0, 330)
2576
>>> rfc3339_duration_to_delta("P1DT3M20S")
2577
datetime.timedelta(1, 200)
2578
"""
2579
2580
# Parsing an RFC 3339 duration with regular expressions is not
2581
# possible - there would have to be multiple places for the same
2582
# values, like seconds. The current code, while more esoteric, is
2583
# cleaner without depending on a parsing library. If Python had a
2584
# built-in library for parsing we would use it, but we'd like to
2585
# avoid excessive use of external libraries.
2586
2587
# New type for defining tokens, syntax, and semantics all-in-one
2588
Token = collections.namedtuple("Token", (
2589
"regexp", # To match token; if "value" is not None, must have
2590
# a "group" containing digits
2591
"value", # datetime.timedelta or None
2592
"followers")) # Tokens valid after this token
2593
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2594
# the "duration" ABNF definition in RFC 3339, Appendix A.
2595
token_end = Token(re.compile(r"$"), None, frozenset())
2596
token_second = Token(re.compile(r"(\d+)S"),
2597
datetime.timedelta(seconds=1),
2598
frozenset((token_end, )))
2599
token_minute = Token(re.compile(r"(\d+)M"),
2600
datetime.timedelta(minutes=1),
2601
frozenset((token_second, token_end)))
2602
token_hour = Token(re.compile(r"(\d+)H"),
2603
datetime.timedelta(hours=1),
2604
frozenset((token_minute, token_end)))
2605
token_time = Token(re.compile(r"T"),
2606
None,
2607
frozenset((token_hour, token_minute,
2608
token_second)))
2609
token_day = Token(re.compile(r"(\d+)D"),
2610
datetime.timedelta(days=1),
2611
frozenset((token_time, token_end)))
2612
token_month = Token(re.compile(r"(\d+)M"),
2613
datetime.timedelta(weeks=4),
2614
frozenset((token_day, token_end)))
2615
token_year = Token(re.compile(r"(\d+)Y"),
2616
datetime.timedelta(weeks=52),
2617
frozenset((token_month, token_end)))
2618
token_week = Token(re.compile(r"(\d+)W"),
2619
datetime.timedelta(weeks=1),
2620
frozenset((token_end, )))
2621
token_duration = Token(re.compile(r"P"), None,
2622
frozenset((token_year, token_month,
2623
token_day, token_time,
2624
token_week)))
2625
# Define starting values
2626
value = datetime.timedelta() # Value so far
2627
found_token = None
2628
followers = frozenset((token_duration, )) # Following valid tokens
2629
s = duration # String left to parse
2630
# Loop until end token is found
2631
while found_token is not token_end:
2632
# Search for any currently valid tokens
2633
for token in followers:
2634
match = token.regexp.match(s)
2635
if match is not None:
2636
# Token found
2637
if token.value is not None:
2638
# Value found, parse digits
2639
factor = int(match.group(1), 10)
2640
# Add to value so far
2641
value += factor * token.value
2642
# Strip token from string
2643
s = token.regexp.sub("", s, 1)
2644
# Go to found token
2645
found_token = token
2646
# Set valid next tokens
2647
followers = found_token.followers
2648
break
2649
else:
2650
# No currently valid tokens were found
2651
raise ValueError("Invalid RFC 3339 duration: {!r}"
2652
.format(duration))
2653
# End token found
2654
return value
2655
2656
2657
2096
def string_to_delta(interval):
2658
2097
"""Parse a string and return a datetime.timedelta
2659
2098
2670
2109
>>> string_to_delta('5m 30s')
2671
2110
datetime.timedelta(0, 330)
2672
2111
"""
2673
2674
try:
2675
return rfc3339_duration_to_delta(interval)
2676
except ValueError:
2677
pass
2678
2679
2112
timevalue = datetime.timedelta(0)
2680
2113
for s in interval.split():
2681
2114
try:
2682
suffix = s[-1]
2115
suffix = unicode(s[-1])
2683
2116
value = int(s[:-1])
2684
2117
if suffix == "d":
2685
2118
delta = datetime.timedelta(value)
2692
2125
elif suffix == "w":
2693
2126
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2694
2127
else:
2695
raise ValueError("Unknown suffix {!r}".format(suffix))
2696
except IndexError as e:
2128
raise ValueError("Unknown suffix {0!r}"
2129
.format(suffix))
2130
except (ValueError, IndexError) as e:
2697
2131
raise ValueError(*(e.args))
2698
2132
timevalue += delta
2699
2133
return timevalue
2715
2149
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2716
2150
if not stat.S_ISCHR(os.fstat(null).st_mode):
2717
2151
raise OSError(errno.ENODEV,
2718
"{} not a character device"
2152
"{0} not a character device"
2719
2153
.format(os.devnull))
2720
2154
os.dup2(null, sys.stdin.fileno())
2721
2155
os.dup2(null, sys.stdout.fileno())
2731
2165
2732
2166
parser = argparse.ArgumentParser()
2733
2167
parser.add_argument("-v", "--version", action="version",
2734
version = "%(prog)s {}".format(version),
2168
version = "%(prog)s {0}".format(version),
2735
2169
help="show version number and exit")
2736
2170
parser.add_argument("-i", "--interface", metavar="IF",
2737
2171
help="Bind to interface IF")
2743
2177
help="Run self-test")
2744
2178
parser.add_argument("--debug", action="store_true",
2745
2179
help="Debug mode; run in foreground and log"
2746
" to terminal", default=None)
2180
" to terminal")
2747
2181
parser.add_argument("--debuglevel", metavar="LEVEL",
2748
2182
help="Debug level for stdout output")
2749
2183
parser.add_argument("--priority", help="GnuTLS"
2756
2190
" files")
2757
2191
parser.add_argument("--no-dbus", action="store_false",
2758
2192
dest="use_dbus", help="Do not provide D-Bus"
2759
" system bus interface", default=None)
2193
" system bus interface")
2760
2194
parser.add_argument("--no-ipv6", action="store_false",
2761
dest="use_ipv6", help="Do not use IPv6",
2762
default=None)
2195
dest="use_ipv6", help="Do not use IPv6")
2763
2196
parser.add_argument("--no-restore", action="store_false",
2764
2197
dest="restore", help="Do not restore stored"
2765
" state", default=None)
2198
" state")
2766
2199
parser.add_argument("--socket", type=int,
2767
2200
help="Specify a file descriptor to a network"
2768
2201
" socket to use instead of creating one")
2769
2202
parser.add_argument("--statedir", metavar="DIR",
2770
2203
help="Directory to save/restore state in")
2771
parser.add_argument("--foreground", action="store_true",
2772
help="Run in foreground", default=None)
2773
parser.add_argument("--no-zeroconf", action="store_false",
2774
dest="zeroconf", help="Do not use Zeroconf",
2775
default=None)
2776
2204
2777
2205
options = parser.parse_args()
2778
2206
2779
2207
if options.check:
2780
2208
import doctest
2781
fail_count, test_count = doctest.testmod()
2782
sys.exit(os.EX_OK if fail_count == 0 else 1)
2209
doctest.testmod()
2210
sys.exit()
2783
2211
2784
2212
# Default values for config file for server-global settings
2785
2213
server_defaults = { "interface": "",
2787
2215
"port": "",
2788
2216
"debug": "False",
2789
2217
"priority":
2790
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2791
":+SIGN-DSA-SHA256",
2218
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2792
2219
"servicename": "Mandos",
2793
2220
"use_dbus": "True",
2794
2221
"use_ipv6": "True",
2795
2222
"debuglevel": "",
2796
2223
"restore": "True",
2797
2224
"socket": "",
2798
"statedir": "/var/lib/mandos",
2799
"foreground": "False",
2800
"zeroconf": "True",
2801
}
2225
"statedir": "/var/lib/mandos"
2226
}
2802
2227
2803
2228
# Parse config file for server-global settings
2804
2229
server_config = configparser.SafeConfigParser(server_defaults)
2805
2230
del server_defaults
2806
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2231
server_config.read(os.path.join(options.configdir,
2232
"mandos.conf"))
2807
2233
# Convert the SafeConfigParser object to a dict
2808
2234
server_settings = server_config.defaults()
2809
2235
# Use the appropriate methods on the non-string config options
2810
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2236
for option in ("debug", "use_dbus", "use_ipv6"):
2811
2237
server_settings[option] = server_config.getboolean("DEFAULT",
2812
2238
option)
2813
2239
if server_settings["port"]:
2827
2253
# Override the settings from the config file with command line
2828
2254
# options, if set.
2829
2255
for option in ("interface", "address", "port", "debug",
2830
"priority", "servicename", "configdir", "use_dbus",
2831
"use_ipv6", "debuglevel", "restore", "statedir",
2832
"socket", "foreground", "zeroconf"):
2256
"priority", "servicename", "configdir",
2257
"use_dbus", "use_ipv6", "debuglevel", "restore",
2258
"statedir", "socket"):
2833
2259
value = getattr(options, option)
2834
2260
if value is not None:
2835
2261
server_settings[option] = value
2836
2262
del options
2837
2263
# Force all strings to be unicode
2838
2264
for option in server_settings.keys():
2839
if isinstance(server_settings[option], bytes):
2840
server_settings[option] = (server_settings[option]
2841
.decode("utf-8"))
2842
# Force all boolean options to be boolean
2843
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2844
"foreground", "zeroconf"):
2845
server_settings[option] = bool(server_settings[option])
2846
# Debug implies foreground
2847
if server_settings["debug"]:
2848
server_settings["foreground"] = True
2265
if type(server_settings[option]) is str:
2266
server_settings[option] = unicode(server_settings[option])
2849
2267
# Now we have our good server settings in "server_settings"
2850
2268
2851
2269
##################################################################
2852
2270
2853
if (not server_settings["zeroconf"]
2854
and not (server_settings["port"]
2855
or server_settings["socket"] != "")):
2856
parser.error("Needs port or socket to work without Zeroconf")
2857
2858
2271
# For convenience
2859
2272
debug = server_settings["debug"]
2860
2273
debuglevel = server_settings["debuglevel"]
2862
2275
use_ipv6 = server_settings["use_ipv6"]
2863
2276
stored_state_path = os.path.join(server_settings["statedir"],
2864
2277
stored_state_file)
2865
foreground = server_settings["foreground"]
2866
zeroconf = server_settings["zeroconf"]
2867
2278
2868
2279
if debug:
2869
2280
initlogger(debug, logging.DEBUG)
2875
2286
initlogger(debug, level)
2876
2287
2877
2288
if server_settings["servicename"] != "Mandos":
2878
syslogger.setFormatter(
2879
logging.Formatter('Mandos ({}) [%(process)d]:'
2880
' %(levelname)s: %(message)s'.format(
2881
server_settings["servicename"])))
2289
syslogger.setFormatter(logging.Formatter
2290
('Mandos ({0}) [%(process)d]:'
2291
' %(levelname)s: %(message)s'
2292
.format(server_settings
2293
["servicename"])))
2882
2294
2883
2295
# Parse config file with clients
2884
2296
client_config = configparser.SafeConfigParser(Client
2889
2301
global mandos_dbus_service
2890
2302
mandos_dbus_service = None
2891
2303
2892
socketfd = None
2893
if server_settings["socket"] != "":
2894
socketfd = server_settings["socket"]
2895
tcp_server = MandosServer(
2896
(server_settings["address"], server_settings["port"]),
2897
ClientHandler,
2898
interface=(server_settings["interface"] or None),
2899
use_ipv6=use_ipv6,
2900
gnutls_priority=server_settings["priority"],
2901
use_dbus=use_dbus,
2902
socketfd=socketfd)
2903
if not foreground:
2904
pidfilename = "/run/mandos.pid"
2905
if not os.path.isdir("/run/."):
2906
pidfilename = "/var/run/mandos.pid"
2907
pidfile = None
2304
tcp_server = MandosServer((server_settings["address"],
2305
server_settings["port"]),
2306
ClientHandler,
2307
interface=(server_settings["interface"]
2308
or None),
2309
use_ipv6=use_ipv6,
2310
gnutls_priority=
2311
server_settings["priority"],
2312
use_dbus=use_dbus,
2313
socketfd=(server_settings["socket"]
2314
or None))
2315
if not debug:
2316
pidfilename = "/var/run/mandos.pid"
2908
2317
try:
2909
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2318
pidfile = open(pidfilename, "w")
2910
2319
except IOError as e:
2911
2320
logger.error("Could not open file %r", pidfilename,
2912
2321
exc_info=e)
2926
2335
os.setuid(uid)
2927
2336
except OSError as error:
2928
2337
if error.errno != errno.EPERM:
2929
raise
2338
raise error
2930
2339
2931
2340
if debug:
2932
2341
# Enable all possible GnuTLS debugging
2933
2342
2934
2343
# "Use a log level over 10 to enable all debugging options."
2935
2344
# - GnuTLS manual
2936
gnutls.global_set_log_level(11)
2345
gnutls.library.functions.gnutls_global_set_log_level(11)
2937
2346
2938
@gnutls.log_func
2347
@gnutls.library.types.gnutls_log_func
2939
2348
def debug_gnutls(level, string):
2940
2349
logger.debug("GnuTLS: %s", string[:-1])
2941
2350
2942
gnutls.global_set_log_function(debug_gnutls)
2351
(gnutls.library.functions
2352
.gnutls_global_set_log_function(debug_gnutls))
2943
2353
2944
2354
# Redirect stdin so all checkers get /dev/null
2945
2355
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2948
2358
os.close(null)
2949
2359
2950
2360
# Need to fork before connecting to D-Bus
2951
if not foreground:
2361
if not debug:
2952
2362
# Close all input and output, do double fork, etc.
2953
2363
daemon()
2954
2364
2965
2375
if use_dbus:
2966
2376
try:
2967
2377
bus_name = dbus.service.BusName("se.recompile.Mandos",
2968
bus,
2969
do_not_queue=True)
2970
old_bus_name = dbus.service.BusName(
2971
"se.bsnet.fukt.Mandos", bus,
2972
do_not_queue=True)
2973
except dbus.exceptions.DBusException as e:
2378
bus, do_not_queue=True)
2379
old_bus_name = (dbus.service.BusName
2380
("se.bsnet.fukt.Mandos", bus,
2381
do_not_queue=True))
2382
except dbus.exceptions.NameExistsException as e:
2974
2383
logger.error("Disabling D-Bus:", exc_info=e)
2975
2384
use_dbus = False
2976
2385
server_settings["use_dbus"] = False
2977
2386
tcp_server.use_dbus = False
2978
if zeroconf:
2979
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2980
service = AvahiServiceToSyslog(
2981
name = server_settings["servicename"],
2982
servicetype = "_mandos._tcp",
2983
protocol = protocol,
2984
bus = bus)
2985
if server_settings["interface"]:
2986
service.interface = if_nametoindex(
2987
server_settings["interface"].encode("utf-8"))
2387
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2388
service = AvahiServiceToSyslog(name =
2389
server_settings["servicename"],
2390
servicetype = "_mandos._tcp",
2391
protocol = protocol, bus = bus)
2392
if server_settings["interface"]:
2393
service.interface = (if_nametoindex
2394
(str(server_settings["interface"])))
2988
2395
2989
2396
global multiprocessing_manager
2990
2397
multiprocessing_manager = multiprocessing.Manager()
2997
2404
old_client_settings = {}
2998
2405
clients_data = {}
2999
2406
3000
# This is used to redirect stdout and stderr for checker processes
3001
global wnull
3002
wnull = open(os.devnull, "w") # A writable /dev/null
3003
# Only used if server is running in foreground but not in debug
3004
# mode
3005
if debug or not foreground:
3006
wnull.close()
3007
3008
2407
# Get client data and settings from last running state.
3009
2408
if server_settings["restore"]:
3010
2409
try:
3011
2410
with open(stored_state_path, "rb") as stored_state:
3012
clients_data, old_client_settings = pickle.load(
3013
stored_state)
2411
clients_data, old_client_settings = (pickle.load
2412
(stored_state))
3014
2413
os.remove(stored_state_path)
3015
2414
except IOError as e:
3016
2415
if e.errno == errno.ENOENT:
3017
logger.warning("Could not load persistent state:"
3018
" {}".format(os.strerror(e.errno)))
2416
logger.warning("Could not load persistent state: {0}"
2417
.format(os.strerror(e.errno)))
3019
2418
else:
3020
2419
logger.critical("Could not load persistent state:",
3021
2420
exc_info=e)
3022
2421
raise
3023
2422
except EOFError as e:
3024
2423
logger.warning("Could not load persistent state: "
3025
"EOFError:",
3026
exc_info=e)
2424
"EOFError:", exc_info=e)
3027
2425
3028
2426
with PGPEngine() as pgp:
3029
for client_name, client in clients_data.items():
3030
# Skip removed clients
3031
if client_name not in client_settings:
3032
continue
3033
2427
for client_name, client in clients_data.iteritems():
3034
2428
# Decide which value to use after restoring saved state.
3035
2429
# We have three different values: Old config file,
3036
2430
# new config file, and saved state.
3041
2435
# For each value in new config, check if it
3042
2436
# differs from the old config value (Except for
3043
2437
# the "secret" attribute)
3044
if (name != "secret"
3045
and (value !=
3046
old_client_settings[client_name][name])):
2438
if (name != "secret" and
2439
value != old_client_settings[client_name]
2440
[name]):
3047
2441
client[name] = value
3048
2442
except KeyError:
3049
2443
pass
3050
2444
3051
2445
# Clients who has passed its expire date can still be
3052
# enabled if its last checker was successful. A Client
2446
# enabled if its last checker was successful. Clients
3053
2447
# whose checker succeeded before we stored its state is
3054
2448
# assumed to have successfully run all checkers during
3055
2449
# downtime.
3057
2451
if datetime.datetime.utcnow() >= client["expires"]:
3058
2452
if not client["last_checked_ok"]:
3059
2453
logger.warning(
3060
"disabling client {} - Client never "
3061
"performed a successful checker".format(
3062
client_name))
2454
"disabling client {0} - Client never "
2455
"performed a successful checker"
2456
.format(client_name))
3063
2457
client["enabled"] = False
3064
2458
elif client["last_checker_status"] != 0:
3065
2459
logger.warning(
3066
"disabling client {} - Client last"
3067
" checker failed with error code"
3068
" {}".format(
3069
client_name,
3070
client["last_checker_status"]))
2460
"disabling client {0} - Client "
2461
"last checker failed with error code {1}"
2462
.format(client_name,
2463
client["last_checker_status"]))
3071
2464
client["enabled"] = False
3072
2465
else:
3073
client["expires"] = (
3074
datetime.datetime.utcnow()
3075
+ client["timeout"])
2466
client["expires"] = (datetime.datetime
2467
.utcnow()
2468
+ client["timeout"])
3076
2469
logger.debug("Last checker succeeded,"
3077
" keeping {} enabled".format(
3078
client_name))
2470
" keeping {0} enabled"
2471
.format(client_name))
3079
2472
try:
3080
client["secret"] = pgp.decrypt(
3081
client["encrypted_secret"],
3082
client_settings[client_name]["secret"])
2473
client["secret"] = (
2474
pgp.decrypt(client["encrypted_secret"],
2475
client_settings[client_name]
2476
["secret"]))
3083
2477
except PGPError:
3084
2478
# If decryption fails, we use secret from new settings
3085
logger.debug("Failed to decrypt {} old secret".format(
3086
client_name))
3087
client["secret"] = (client_settings[client_name]
3088
["secret"])
2479
logger.debug("Failed to decrypt {0} old secret"
2480
.format(client_name))
2481
client["secret"] = (
2482
client_settings[client_name]["secret"])
3089
2483
3090
2484
# Add/remove clients based on new changes made to config
3091
2485
for client_name in (set(old_client_settings)
3096
2490
clients_data[client_name] = client_settings[client_name]
3097
2491
3098
2492
# Create all client objects
3099
for client_name, client in clients_data.items():
2493
for client_name, client in clients_data.iteritems():
3100
2494
tcp_server.clients[client_name] = client_class(
3101
name = client_name,
3102
settings = client,
3103
server_settings = server_settings)
2495
name = client_name, settings = client)
3104
2496
3105
2497
if not tcp_server.clients:
3106
2498
logger.warning("No clients defined")
3107
2499
3108
if not foreground:
3109
if pidfile is not None:
3110
pid = os.getpid()
3111
try:
3112
with pidfile:
3113
print(pid, file=pidfile)
3114
except IOError:
3115
logger.error("Could not write to file %r with PID %d",
3116
pidfilename, pid)
3117
del pidfile
2500
if not debug:
2501
try:
2502
with pidfile:
2503
pid = os.getpid()
2504
pidfile.write(str(pid) + "\n".encode("utf-8"))
2505
del pidfile
2506
except IOError:
2507
logger.error("Could not write to file %r with PID %d",
2508
pidfilename, pid)
2509
except NameError:
2510
# "pidfile" was never created
2511
pass
3118
2512
del pidfilename
3119
2513
3120
2514
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3121
2515
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3122
2516
3123
2517
if use_dbus:
3124
3125
@alternate_dbus_interfaces(
3126
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3127
class MandosDBusService(DBusObjectWithObjectManager):
2518
@alternate_dbus_interfaces({"se.recompile.Mandos":
2519
"se.bsnet.fukt.Mandos"})
2520
class MandosDBusService(DBusObjectWithProperties):
3128
2521
"""A D-Bus proxy object"""
3129
3130
2522
def __init__(self):
3131
2523
dbus.service.Object.__init__(self, bus, "/")
3132
3133
2524
_interface = "se.recompile.Mandos"
3134
2525
2526
@dbus_interface_annotations(_interface)
2527
def _foo(self):
2528
return { "org.freedesktop.DBus.Property"
2529
".EmitsChangedSignal":
2530
"false"}
2531
3135
2532
@dbus.service.signal(_interface, signature="o")
3136
2533
def ClientAdded(self, objpath):
3137
2534
"D-Bus signal"
3142
2539
"D-Bus signal"
3143
2540
pass
3144
2541
3145
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3146
"true"})
3147
2542
@dbus.service.signal(_interface, signature="os")
3148
2543
def ClientRemoved(self, objpath, name):
3149
2544
"D-Bus signal"
3150
2545
pass
3151
2546
3152
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3153
"true"})
3154
2547
@dbus.service.method(_interface, out_signature="ao")
3155
2548
def GetAllClients(self):
3156
2549
"D-Bus method"
3157
return dbus.Array(c.dbus_object_path for c in
2550
return dbus.Array(c.dbus_object_path
2551
for c in
3158
2552
tcp_server.clients.itervalues())
3159
2553
3160
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3161
"true"})
3162
2554
@dbus.service.method(_interface,
3163
2555
out_signature="a{oa{sv}}")
3164
2556
def GetAllClientsWithProperties(self):
3165
2557
"D-Bus method"
3166
2558
return dbus.Dictionary(
3167
{ c.dbus_object_path: c.GetAll(
3168
"se.recompile.Mandos.Client")
3169
for c in tcp_server.clients.itervalues() },
2559
((c.dbus_object_path, c.GetAll(""))
2560
for c in tcp_server.clients.itervalues()),
3170
2561
signature="oa{sv}")
3171
2562
3172
2563
@dbus.service.method(_interface, in_signature="o")
3176
2567
if c.dbus_object_path == object_path:
3177
2568
del tcp_server.clients[c.name]
3178
2569
c.remove_from_connection()
3179
# Don't signal the disabling
2570
# Don't signal anything except ClientRemoved
3180
2571
c.disable(quiet=True)
3181
# Emit D-Bus signal for removal
3182
self.client_removed_signal(c)
2572
# Emit D-Bus signal
2573
self.ClientRemoved(object_path, c.name)
3183
2574
return
3184
2575
raise KeyError(object_path)
3185
2576
3186
2577
del _interface
3187
3188
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3189
out_signature = "a{oa{sa{sv}}}")
3190
def GetManagedObjects(self):
3191
"""D-Bus method"""
3192
return dbus.Dictionary(
3193
{ client.dbus_object_path:
3194
dbus.Dictionary(
3195
{ interface: client.GetAll(interface)
3196
for interface in
3197
client._get_all_interface_names()})
3198
for client in tcp_server.clients.values()})
3199
3200
def client_added_signal(self, client):
3201
"""Send the new standard signal and the old signal"""
3202
if use_dbus:
3203
# New standard signal
3204
self.InterfacesAdded(
3205
client.dbus_object_path,
3206
dbus.Dictionary(
3207
{ interface: client.GetAll(interface)
3208
for interface in
3209
client._get_all_interface_names()}))
3210
# Old signal
3211
self.ClientAdded(client.dbus_object_path)
3212
3213
def client_removed_signal(self, client):
3214
"""Send the new standard signal and the old signal"""
3215
if use_dbus:
3216
# New standard signal
3217
self.InterfacesRemoved(
3218
client.dbus_object_path,
3219
client._get_all_interface_names())
3220
# Old signal
3221
self.ClientRemoved(client.dbus_object_path,
3222
client.name)
3223
2578
3224
2579
mandos_dbus_service = MandosDBusService()
3225
2580
3226
2581
def cleanup():
3227
2582
"Cleanup function; run on exit"
3228
if zeroconf:
3229
service.cleanup()
2583
service.cleanup()
3230
2584
3231
2585
multiprocessing.active_children()
3232
wnull.close()
3233
2586
if not (tcp_server.clients or client_settings):
3234
2587
return
3235
2588
3246
2599
3247
2600
# A list of attributes that can not be pickled
3248
2601
# + secret.
3249
exclude = { "bus", "changedstate", "secret",
3250
"checker", "server_settings" }
3251
for name, typ in inspect.getmembers(dbus.service
3252
.Object):
2602
exclude = set(("bus", "changedstate", "secret",
2603
"checker"))
2604
for name, typ in (inspect.getmembers
2605
(dbus.service.Object)):
3253
2606
exclude.add(name)
3254
2607
3255
2608
client_dict["encrypted_secret"] = (client
3262
2615
del client_settings[client.name]["secret"]
3263
2616
3264
2617
try:
3265
with tempfile.NamedTemporaryFile(
3266
mode='wb',
3267
suffix=".pickle",
3268
prefix='clients-',
3269
dir=os.path.dirname(stored_state_path),
3270
delete=False) as stored_state:
2618
with (tempfile.NamedTemporaryFile
2619
(mode='wb', suffix=".pickle", prefix='clients-',
2620
dir=os.path.dirname(stored_state_path),
2621
delete=False)) as stored_state:
3271
2622
pickle.dump((clients, client_settings), stored_state)
3272
tempname = stored_state.name
2623
tempname=stored_state.name
3273
2624
os.rename(tempname, stored_state_path)
3274
2625
except (IOError, OSError) as e:
3275
2626
if not debug:
3278
2629
except NameError:
3279
2630
pass
3280
2631
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3281
logger.warning("Could not save persistent state: {}"
2632
logger.warning("Could not save persistent state: {0}"
3282
2633
.format(os.strerror(e.errno)))
3283
2634
else:
3284
2635
logger.warning("Could not save persistent state:",
3285
2636
exc_info=e)
3286
raise
2637
raise e
3287
2638
3288
2639
# Delete all clients, and settings from config
3289
2640
while tcp_server.clients:
3290
2641
name, client = tcp_server.clients.popitem()
3291
2642
if use_dbus:
3292
2643
client.remove_from_connection()
3293
# Don't signal the disabling
2644
# Don't signal anything except ClientRemoved
3294
2645
client.disable(quiet=True)
3295
# Emit D-Bus signal for removal
3296
2646
if use_dbus:
3297
mandos_dbus_service.client_removed_signal(client)
2647
# Emit D-Bus signal
2648
mandos_dbus_service.ClientRemoved(client
2649
.dbus_object_path,
2650
client.name)
3298
2651
client_settings.clear()
3299
2652
3300
2653
atexit.register(cleanup)
3301
2654
3302
2655
for client in tcp_server.clients.itervalues():
3303
2656
if use_dbus:
3304
# Emit D-Bus signal for adding
3305
mandos_dbus_service.client_added_signal(client)
2657
# Emit D-Bus signal
2658
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3306
2659
# Need to initiate checking of clients
3307
2660
if client.enabled:
3308
2661
client.init_checker()
3311
2664
tcp_server.server_activate()
3312
2665
3313
2666
# Find out what port we got
3314
if zeroconf:
3315
service.port = tcp_server.socket.getsockname()[1]
2667
service.port = tcp_server.socket.getsockname()[1]
3316
2668
if use_ipv6:
3317
2669
logger.info("Now listening on address %r, port %d,"
3318
2670
" flowinfo %d, scope_id %d",
3324
2676
#service.interface = tcp_server.socket.getsockname()[3]
3325
2677
3326
2678
try:
3327
if zeroconf:
3328
# From the Avahi example code
3329
try:
3330
service.activate()
3331
except dbus.exceptions.DBusException as error:
3332
logger.critical("D-Bus Exception", exc_info=error)
3333
cleanup()
3334
sys.exit(1)
3335
# End of Avahi example code
2679
# From the Avahi example code
2680
try:
2681
service.activate()
2682
except dbus.exceptions.DBusException as error:
2683
logger.critical("D-Bus Exception", exc_info=error)
2684
cleanup()
2685
sys.exit(1)
2686
# End of Avahi example code
3336
2687
3337
2688
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3338
2689
lambda *args, **kwargs:
3353
2704
# Must run before the D-Bus bus name gets deregistered
3354
2705
cleanup()
3355
2706
3356
3357
2707
if __name__ == '__main__':
3358
2708
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0