To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to mandos
- browse files at revision 829
- compare with another revision
- download diff
- download tarball
- view history from revision 829
- Committer: Teddy Hogeborn
- Date: 2016-03-12 20:23:15 UTC
- Revision ID: teddy@recompile.se-20160312202315-hu7b87ivetlxqbw3
Server: Fix minor thing with Python 3 compatibility
Fix another small thing with unpickling string values.
* mandos (main): When restoring pickled client data, only decode byte
string for "host" key if it really is a byte string.
Fix another small thing with unpickling string values.
* mandos (main): When restoring pickled client data, only decode byte
string for "host" key if it really is a byte string.
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2013 Teddy Hogeborn
15
# Copyright © 2008-2013 Björn Påhlsson
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
38
41
39
import SocketServer as socketserver
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
40
46
import socket
41
47
import argparse
42
48
import datetime
43
49
import errno
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
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
51
54
import sys
52
55
import re
53
56
import os
62
65
import struct
63
66
import fcntl
64
67
import functools
65
import cPickle as pickle
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
66
72
import multiprocessing
67
73
import types
68
74
import binascii
69
75
import tempfile
70
76
import itertools
71
77
import collections
78
import codecs
72
79
73
80
import dbus
74
81
import dbus.service
75
import gobject
76
import avahi
82
try:
83
from gi.repository import GObject
84
except ImportError:
85
import gobject as GObject
77
86
from dbus.mainloop.glib import DBusGMainLoop
78
87
import ctypes
79
88
import ctypes.util
88
97
except ImportError:
89
98
SO_BINDTODEVICE = None
90
99
91
version = "1.6.2"
100
if sys.version_info.major == 2:
101
str = unicode
102
103
version = "1.7.5"
92
104
stored_state_file = "clients.pickle"
93
105
94
106
logger = logging.getLogger()
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
107
syslogger = None
98
108
99
109
try:
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
110
if_nametoindex = ctypes.cdll.LoadLibrary(
111
ctypes.util.find_library("c")).if_nametoindex
103
112
except (OSError, AttributeError):
113
104
114
def if_nametoindex(interface):
105
115
"Get an interface index the hard way, i.e. using fcntl()"
106
116
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
117
with contextlib.closing(socket.socket()) as s:
108
118
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
119
struct.pack(b"16s16x", interface))
120
interface_index = struct.unpack("I", ifreq[16:20])[0]
113
121
return interface_index
114
122
115
123
124
def copy_function(func):
125
"""Make a copy of a function"""
126
if sys.version_info.major == 2:
127
return types.FunctionType(func.func_code,
128
func.func_globals,
129
func.func_name,
130
func.func_defaults,
131
func.func_closure)
132
else:
133
return types.FunctionType(func.__code__,
134
func.__globals__,
135
func.__name__,
136
func.__defaults__,
137
func.__closure__)
138
139
116
140
def initlogger(debug, level=logging.WARNING):
117
141
"""init logger and add loglevel"""
118
142
143
global syslogger
144
syslogger = (logging.handlers.SysLogHandler(
145
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
146
address = "/dev/log"))
119
147
syslogger.setFormatter(logging.Formatter
120
148
('Mandos [%(process)d]: %(levelname)s:'
121
149
' %(message)s'))
138
166
139
167
class PGPEngine(object):
140
168
"""A simple class for OpenPGP symmetric encryption & decryption"""
169
141
170
def __init__(self):
142
171
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
172
self.gpg = "gpg"
173
try:
174
output = subprocess.check_output(["gpgconf"])
175
for line in output.splitlines():
176
name, text, path = line.split(b":")
177
if name == "gpg":
178
self.gpg = path
179
break
180
except OSError as e:
181
if e.errno != errno.ENOENT:
182
raise
143
183
self.gnupgargs = ['--batch',
144
'--home', self.tempdir,
184
'--homedir', self.tempdir,
145
185
'--force-mdc',
146
186
'--quiet',
147
187
'--no-use-agent']
182
222
183
223
def encrypt(self, data, password):
184
224
passphrase = self.password_encode(password)
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
186
) as passfile:
225
with tempfile.NamedTemporaryFile(
226
dir=self.tempdir) as passfile:
187
227
passfile.write(passphrase)
188
228
passfile.flush()
189
proc = subprocess.Popen(['gpg', '--symmetric',
229
proc = subprocess.Popen([self.gpg, '--symmetric',
190
230
'--passphrase-file',
191
231
passfile.name]
192
232
+ self.gnupgargs,
200
240
201
241
def decrypt(self, data, password):
202
242
passphrase = self.password_encode(password)
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
204
) as passfile:
243
with tempfile.NamedTemporaryFile(
244
dir = self.tempdir) as passfile:
205
245
passfile.write(passphrase)
206
246
passfile.flush()
207
proc = subprocess.Popen(['gpg', '--decrypt',
247
proc = subprocess.Popen([self.gpg, '--decrypt',
208
248
'--passphrase-file',
209
249
passfile.name]
210
250
+ self.gnupgargs,
211
251
stdin = subprocess.PIPE,
212
252
stdout = subprocess.PIPE,
213
253
stderr = subprocess.PIPE)
214
decrypted_plaintext, err = proc.communicate(input
215
= data)
254
decrypted_plaintext, err = proc.communicate(input = data)
216
255
if proc.returncode != 0:
217
256
raise PGPError(err)
218
257
return decrypted_plaintext
219
258
259
# Pretend that we have an Avahi module
260
class Avahi(object):
261
"""This isn't so much a class as it is a module-like namespace.
262
It is instantiated once, and simulates having an Avahi module."""
263
IF_UNSPEC = -1 # avahi-common/address.h
264
PROTO_UNSPEC = -1 # avahi-common/address.h
265
PROTO_INET = 0 # avahi-common/address.h
266
PROTO_INET6 = 1 # avahi-common/address.h
267
DBUS_NAME = "org.freedesktop.Avahi"
268
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
269
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
270
DBUS_PATH_SERVER = "/"
271
def string_array_to_txt_array(self, t):
272
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
273
for s in t), signature="ay")
274
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
275
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
276
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
277
SERVER_INVALID = 0 # avahi-common/defs.h
278
SERVER_REGISTERING = 1 # avahi-common/defs.h
279
SERVER_RUNNING = 2 # avahi-common/defs.h
280
SERVER_COLLISION = 3 # avahi-common/defs.h
281
SERVER_FAILURE = 4 # avahi-common/defs.h
282
avahi = Avahi()
220
283
221
284
class AvahiError(Exception):
222
285
def __init__(self, value, *args, **kwargs):
223
286
self.value = value
224
super(AvahiError, self).__init__(value, *args, **kwargs)
225
def __unicode__(self):
226
return unicode(repr(self.value))
287
return super(AvahiError, self).__init__(value, *args,
288
**kwargs)
289
227
290
228
291
class AvahiServiceError(AvahiError):
229
292
pass
230
293
294
231
295
class AvahiGroupError(AvahiError):
232
296
pass
233
297
253
317
bus: dbus.SystemBus()
254
318
"""
255
319
256
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
257
servicetype = None, port = None, TXT = None,
258
domain = "", host = "", max_renames = 32768,
259
protocol = avahi.PROTO_UNSPEC, bus = None):
320
def __init__(self,
321
interface = avahi.IF_UNSPEC,
322
name = None,
323
servicetype = None,
324
port = None,
325
TXT = None,
326
domain = "",
327
host = "",
328
max_renames = 32768,
329
protocol = avahi.PROTO_UNSPEC,
330
bus = None):
260
331
self.interface = interface
261
332
self.name = name
262
333
self.type = servicetype
272
343
self.bus = bus
273
344
self.entry_group_state_changed_match = None
274
345
275
def rename(self):
346
def rename(self, remove=True):
276
347
"""Derived from the Avahi example code"""
277
348
if self.rename_count >= self.max_renames:
278
349
logger.critical("No suitable Zeroconf service name found"
279
350
" after %i retries, exiting.",
280
351
self.rename_count)
281
352
raise AvahiServiceError("Too many renames")
282
self.name = unicode(self.server
283
.GetAlternativeServiceName(self.name))
353
self.name = str(
354
self.server.GetAlternativeServiceName(self.name))
355
self.rename_count += 1
284
356
logger.info("Changing Zeroconf service name to %r ...",
285
357
self.name)
286
self.remove()
358
if remove:
359
self.remove()
287
360
try:
288
361
self.add()
289
362
except dbus.exceptions.DBusException as error:
290
logger.critical("D-Bus Exception", exc_info=error)
291
self.cleanup()
292
os._exit(1)
293
self.rename_count += 1
363
if (error.get_dbus_name()
364
== "org.freedesktop.Avahi.CollisionError"):
365
logger.info("Local Zeroconf service name collision.")
366
return self.rename(remove=False)
367
else:
368
logger.critical("D-Bus Exception", exc_info=error)
369
self.cleanup()
370
os._exit(1)
294
371
295
372
def remove(self):
296
373
"""Derived from the Avahi example code"""
334
411
self.rename()
335
412
elif state == avahi.ENTRY_GROUP_FAILURE:
336
413
logger.critical("Avahi: Error in group state changed %s",
337
unicode(error))
338
raise AvahiGroupError("State changed: {0!s}"
339
.format(error))
414
str(error))
415
raise AvahiGroupError("State changed: {!s}".format(error))
340
416
341
417
def cleanup(self):
342
418
"""Derived from the Avahi example code"""
352
428
def server_state_changed(self, state, error=None):
353
429
"""Derived from the Avahi example code"""
354
430
logger.debug("Avahi server state change: %i", state)
355
bad_states = { avahi.SERVER_INVALID:
356
"Zeroconf server invalid",
357
avahi.SERVER_REGISTERING: None,
358
avahi.SERVER_COLLISION:
359
"Zeroconf server name collision",
360
avahi.SERVER_FAILURE:
361
"Zeroconf server failure" }
431
bad_states = {
432
avahi.SERVER_INVALID: "Zeroconf server invalid",
433
avahi.SERVER_REGISTERING: None,
434
avahi.SERVER_COLLISION: "Zeroconf server name collision",
435
avahi.SERVER_FAILURE: "Zeroconf server failure",
436
}
362
437
if state in bad_states:
363
438
if bad_states[state] is not None:
364
439
if error is None:
367
442
logger.error(bad_states[state] + ": %r", error)
368
443
self.cleanup()
369
444
elif state == avahi.SERVER_RUNNING:
370
self.add()
445
try:
446
self.add()
447
except dbus.exceptions.DBusException as error:
448
if (error.get_dbus_name()
449
== "org.freedesktop.Avahi.CollisionError"):
450
logger.info("Local Zeroconf service name"
451
" collision.")
452
return self.rename(remove=False)
453
else:
454
logger.critical("D-Bus Exception", exc_info=error)
455
self.cleanup()
456
os._exit(1)
371
457
else:
372
458
if error is None:
373
459
logger.debug("Unknown state: %r", state)
383
469
follow_name_owner_changes=True),
384
470
avahi.DBUS_INTERFACE_SERVER)
385
471
self.server.connect_to_signal("StateChanged",
386
self.server_state_changed)
472
self.server_state_changed)
387
473
self.server_state_changed(self.server.GetState())
388
474
389
475
390
476
class AvahiServiceToSyslog(AvahiService):
391
def rename(self):
477
def rename(self, *args, **kwargs):
392
478
"""Add the new name to the syslog messages"""
393
ret = AvahiService.rename(self)
394
syslogger.setFormatter(logging.Formatter
395
('Mandos ({0}) [%(process)d]:'
396
' %(levelname)s: %(message)s'
397
.format(self.name)))
479
ret = AvahiService.rename(self, *args, **kwargs)
480
syslogger.setFormatter(logging.Formatter(
481
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
482
.format(self.name)))
398
483
return ret
399
484
400
401
def timedelta_to_milliseconds(td):
402
"Convert a datetime.timedelta() to milliseconds"
403
return ((td.days * 24 * 60 * 60 * 1000)
404
+ (td.seconds * 1000)
405
+ (td.microseconds // 1000))
406
485
# Pretend that we have a GnuTLS module
486
class GnuTLS(object):
487
"""This isn't so much a class as it is a module-like namespace.
488
It is instantiated once, and simulates having a GnuTLS module."""
489
490
_library = ctypes.cdll.LoadLibrary(
491
ctypes.util.find_library("gnutls"))
492
_need_version = b"3.3.0"
493
def __init__(self):
494
# Need to use class name "GnuTLS" here, since this method is
495
# called before the assignment to the "gnutls" global variable
496
# happens.
497
if GnuTLS.check_version(self._need_version) is None:
498
raise GnuTLS.Error("Needs GnuTLS {} or later"
499
.format(self._need_version))
500
501
# Unless otherwise indicated, the constants and types below are
502
# all from the gnutls/gnutls.h C header file.
503
504
# Constants
505
E_SUCCESS = 0
506
E_INTERRUPTED = -52
507
E_AGAIN = -28
508
CRT_OPENPGP = 2
509
CLIENT = 2
510
SHUT_RDWR = 0
511
CRD_CERTIFICATE = 1
512
E_NO_CERTIFICATE_FOUND = -49
513
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
514
515
# Types
516
class session_int(ctypes.Structure):
517
_fields_ = []
518
session_t = ctypes.POINTER(session_int)
519
class certificate_credentials_st(ctypes.Structure):
520
_fields_ = []
521
certificate_credentials_t = ctypes.POINTER(
522
certificate_credentials_st)
523
certificate_type_t = ctypes.c_int
524
class datum_t(ctypes.Structure):
525
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
526
('size', ctypes.c_uint)]
527
class openpgp_crt_int(ctypes.Structure):
528
_fields_ = []
529
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
530
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
531
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
532
credentials_type_t = ctypes.c_int
533
transport_ptr_t = ctypes.c_void_p
534
close_request_t = ctypes.c_int
535
536
# Exceptions
537
class Error(Exception):
538
# We need to use the class name "GnuTLS" here, since this
539
# exception might be raised from within GnuTLS.__init__,
540
# which is called before the assignment to the "gnutls"
541
# global variable has happened.
542
def __init__(self, message = None, code = None, args=()):
543
# Default usage is by a message string, but if a return
544
# code is passed, convert it to a string with
545
# gnutls.strerror()
546
self.code = code
547
if message is None and code is not None:
548
message = GnuTLS.strerror(code)
549
return super(GnuTLS.Error, self).__init__(
550
message, *args)
551
552
class CertificateSecurityError(Error):
553
pass
554
555
# Classes
556
class Credentials(object):
557
def __init__(self):
558
self._c_object = gnutls.certificate_credentials_t()
559
gnutls.certificate_allocate_credentials(
560
ctypes.byref(self._c_object))
561
self.type = gnutls.CRD_CERTIFICATE
562
563
def __del__(self):
564
gnutls.certificate_free_credentials(self._c_object)
565
566
class ClientSession(object):
567
def __init__(self, socket, credentials = None):
568
self._c_object = gnutls.session_t()
569
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
570
gnutls.set_default_priority(self._c_object)
571
gnutls.transport_set_ptr(self._c_object, socket.fileno())
572
gnutls.handshake_set_private_extensions(self._c_object,
573
True)
574
self.socket = socket
575
if credentials is None:
576
credentials = gnutls.Credentials()
577
gnutls.credentials_set(self._c_object, credentials.type,
578
ctypes.cast(credentials._c_object,
579
ctypes.c_void_p))
580
self.credentials = credentials
581
582
def __del__(self):
583
gnutls.deinit(self._c_object)
584
585
def handshake(self):
586
return gnutls.handshake(self._c_object)
587
588
def send(self, data):
589
data = bytes(data)
590
data_len = len(data)
591
while data_len > 0:
592
data_len -= gnutls.record_send(self._c_object,
593
data[-data_len:],
594
data_len)
595
596
def bye(self):
597
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
598
599
# Error handling functions
600
def _error_code(result):
601
"""A function to raise exceptions on errors, suitable
602
for the 'restype' attribute on ctypes functions"""
603
if result >= 0:
604
return result
605
if result == gnutls.E_NO_CERTIFICATE_FOUND:
606
raise gnutls.CertificateSecurityError(code = result)
607
raise gnutls.Error(code = result)
608
609
def _retry_on_error(result, func, arguments):
610
"""A function to retry on some errors, suitable
611
for the 'errcheck' attribute on ctypes functions"""
612
while result < 0:
613
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
614
return _error_code(result)
615
result = func(*arguments)
616
return result
617
618
# Unless otherwise indicated, the function declarations below are
619
# all from the gnutls/gnutls.h C header file.
620
621
# Functions
622
priority_set_direct = _library.gnutls_priority_set_direct
623
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
624
ctypes.POINTER(ctypes.c_char_p)]
625
priority_set_direct.restype = _error_code
626
627
init = _library.gnutls_init
628
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
629
init.restype = _error_code
630
631
set_default_priority = _library.gnutls_set_default_priority
632
set_default_priority.argtypes = [session_t]
633
set_default_priority.restype = _error_code
634
635
record_send = _library.gnutls_record_send
636
record_send.argtypes = [session_t, ctypes.c_void_p,
637
ctypes.c_size_t]
638
record_send.restype = ctypes.c_ssize_t
639
record_send.errcheck = _retry_on_error
640
641
certificate_allocate_credentials = (
642
_library.gnutls_certificate_allocate_credentials)
643
certificate_allocate_credentials.argtypes = [
644
ctypes.POINTER(certificate_credentials_t)]
645
certificate_allocate_credentials.restype = _error_code
646
647
certificate_free_credentials = (
648
_library.gnutls_certificate_free_credentials)
649
certificate_free_credentials.argtypes = [certificate_credentials_t]
650
certificate_free_credentials.restype = None
651
652
handshake_set_private_extensions = (
653
_library.gnutls_handshake_set_private_extensions)
654
handshake_set_private_extensions.argtypes = [session_t,
655
ctypes.c_int]
656
handshake_set_private_extensions.restype = None
657
658
credentials_set = _library.gnutls_credentials_set
659
credentials_set.argtypes = [session_t, credentials_type_t,
660
ctypes.c_void_p]
661
credentials_set.restype = _error_code
662
663
strerror = _library.gnutls_strerror
664
strerror.argtypes = [ctypes.c_int]
665
strerror.restype = ctypes.c_char_p
666
667
certificate_type_get = _library.gnutls_certificate_type_get
668
certificate_type_get.argtypes = [session_t]
669
certificate_type_get.restype = _error_code
670
671
certificate_get_peers = _library.gnutls_certificate_get_peers
672
certificate_get_peers.argtypes = [session_t,
673
ctypes.POINTER(ctypes.c_uint)]
674
certificate_get_peers.restype = ctypes.POINTER(datum_t)
675
676
global_set_log_level = _library.gnutls_global_set_log_level
677
global_set_log_level.argtypes = [ctypes.c_int]
678
global_set_log_level.restype = None
679
680
global_set_log_function = _library.gnutls_global_set_log_function
681
global_set_log_function.argtypes = [log_func]
682
global_set_log_function.restype = None
683
684
deinit = _library.gnutls_deinit
685
deinit.argtypes = [session_t]
686
deinit.restype = None
687
688
handshake = _library.gnutls_handshake
689
handshake.argtypes = [session_t]
690
handshake.restype = _error_code
691
handshake.errcheck = _retry_on_error
692
693
transport_set_ptr = _library.gnutls_transport_set_ptr
694
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
695
transport_set_ptr.restype = None
696
697
bye = _library.gnutls_bye
698
bye.argtypes = [session_t, close_request_t]
699
bye.restype = _error_code
700
bye.errcheck = _retry_on_error
701
702
check_version = _library.gnutls_check_version
703
check_version.argtypes = [ctypes.c_char_p]
704
check_version.restype = ctypes.c_char_p
705
706
# All the function declarations below are from gnutls/openpgp.h
707
708
openpgp_crt_init = _library.gnutls_openpgp_crt_init
709
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
710
openpgp_crt_init.restype = _error_code
711
712
openpgp_crt_import = _library.gnutls_openpgp_crt_import
713
openpgp_crt_import.argtypes = [openpgp_crt_t,
714
ctypes.POINTER(datum_t),
715
openpgp_crt_fmt_t]
716
openpgp_crt_import.restype = _error_code
717
718
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
719
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
720
ctypes.POINTER(ctypes.c_uint)]
721
openpgp_crt_verify_self.restype = _error_code
722
723
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
724
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
725
openpgp_crt_deinit.restype = None
726
727
openpgp_crt_get_fingerprint = (
728
_library.gnutls_openpgp_crt_get_fingerprint)
729
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
730
ctypes.c_void_p,
731
ctypes.POINTER(
732
ctypes.c_size_t)]
733
openpgp_crt_get_fingerprint.restype = _error_code
734
735
# Remove non-public functions
736
del _error_code, _retry_on_error
737
# Create the global "gnutls" object, simulating a module
738
gnutls = GnuTLS()
739
740
def call_pipe(connection, # : multiprocessing.Connection
741
func, *args, **kwargs):
742
"""This function is meant to be called by multiprocessing.Process
743
744
This function runs func(*args, **kwargs), and writes the resulting
745
return value on the provided multiprocessing.Connection.
746
"""
747
connection.send(func(*args, **kwargs))
748
connection.close()
407
749
408
750
class Client(object):
409
751
"""A representation of a client host served by this server.
415
757
checker: subprocess.Popen(); a running checker process used
416
758
to see if the client lives.
417
759
'None' if no process is running.
418
checker_callback_tag: a gobject event source tag, or None
760
checker_callback_tag: a GObject event source tag, or None
419
761
checker_command: string; External command which is run to check
420
762
if client lives. %() expansions are done at
421
763
runtime with vars(self) as dict, so that for
422
764
instance %(name)s can be used in the command.
423
checker_initiator_tag: a gobject event source tag, or None
765
checker_initiator_tag: a GObject event source tag, or None
424
766
created: datetime.datetime(); (UTC) object creation
425
767
client_structure: Object describing what attributes a client has
426
768
and is used for storing the client at exit
427
769
current_checker_command: string; current running checker_command
428
disable_initiator_tag: a gobject event source tag, or None
770
disable_initiator_tag: a GObject event source tag, or None
429
771
enabled: bool()
430
772
fingerprint: string (40 or 32 hexadecimal digits); used to
431
773
uniquely identify the client
436
778
last_checker_status: integer between 0 and 255 reflecting exit
437
779
status of last checker. -1 reflects crashed
438
780
checker, -2 means no checker completed yet.
781
last_checker_signal: The signal which killed the last checker, if
782
last_checker_status is -1
439
783
last_enabled: datetime.datetime(); (UTC) or None
440
784
name: string; from the config file, used in log messages and
441
785
D-Bus identifiers
454
798
"fingerprint", "host", "interval",
455
799
"last_approval_request", "last_checked_ok",
456
800
"last_enabled", "name", "timeout")
457
client_defaults = { "timeout": "PT5M",
458
"extended_timeout": "PT15M",
459
"interval": "PT2M",
460
"checker": "fping -q -- %%(host)s",
461
"host": "",
462
"approval_delay": "PT0S",
463
"approval_duration": "PT1S",
464
"approved_by_default": "True",
465
"enabled": "True",
466
}
467
468
def timeout_milliseconds(self):
469
"Return the 'timeout' attribute in milliseconds"
470
return timedelta_to_milliseconds(self.timeout)
471
472
def extended_timeout_milliseconds(self):
473
"Return the 'extended_timeout' attribute in milliseconds"
474
return timedelta_to_milliseconds(self.extended_timeout)
475
476
def interval_milliseconds(self):
477
"Return the 'interval' attribute in milliseconds"
478
return timedelta_to_milliseconds(self.interval)
479
480
def approval_delay_milliseconds(self):
481
return timedelta_to_milliseconds(self.approval_delay)
801
client_defaults = {
802
"timeout": "PT5M",
803
"extended_timeout": "PT15M",
804
"interval": "PT2M",
805
"checker": "fping -q -- %%(host)s",
806
"host": "",
807
"approval_delay": "PT0S",
808
"approval_duration": "PT1S",
809
"approved_by_default": "True",
810
"enabled": "True",
811
}
482
812
483
813
@staticmethod
484
814
def config_parser(config):
500
830
client["enabled"] = config.getboolean(client_name,
501
831
"enabled")
502
832
833
# Uppercase and remove spaces from fingerprint for later
834
# comparison purposes with return value from the
835
# fingerprint() function
503
836
client["fingerprint"] = (section["fingerprint"].upper()
504
837
.replace(" ", ""))
505
838
if "secret" in section:
506
client["secret"] = section["secret"].decode("base64")
839
client["secret"] = codecs.decode(section["secret"]
840
.encode("utf-8"),
841
"base64")
507
842
elif "secfile" in section:
508
843
with open(os.path.expanduser(os.path.expandvars
509
844
(section["secfile"])),
510
845
"rb") as secfile:
511
846
client["secret"] = secfile.read()
512
847
else:
513
raise TypeError("No secret or secfile for section {0}"
848
raise TypeError("No secret or secfile for section {}"
514
849
.format(section))
515
850
client["timeout"] = string_to_delta(section["timeout"])
516
851
client["extended_timeout"] = string_to_delta(
533
868
server_settings = {}
534
869
self.server_settings = server_settings
535
870
# adding all client settings
536
for setting, value in settings.iteritems():
871
for setting, value in settings.items():
537
872
setattr(self, setting, value)
538
873
539
874
if self.enabled:
547
882
self.expires = None
548
883
549
884
logger.debug("Creating client %r", self.name)
550
# Uppercase and remove spaces from fingerprint for later
551
# comparison purposes with return value from the fingerprint()
552
# function
553
885
logger.debug(" Fingerprint: %s", self.fingerprint)
554
886
self.created = settings.get("created",
555
887
datetime.datetime.utcnow())
562
894
self.current_checker_command = None
563
895
self.approved = None
564
896
self.approvals_pending = 0
565
self.changedstate = (multiprocessing_manager
566
.Condition(multiprocessing_manager
567
.Lock()))
568
self.client_structure = [attr for attr in
569
self.__dict__.iterkeys()
897
self.changedstate = multiprocessing_manager.Condition(
898
multiprocessing_manager.Lock())
899
self.client_structure = [attr
900
for attr in self.__dict__.keys()
570
901
if not attr.startswith("_")]
571
902
self.client_structure.append("client_structure")
572
903
573
for name, t in inspect.getmembers(type(self),
574
lambda obj:
575
isinstance(obj,
576
property)):
904
for name, t in inspect.getmembers(
905
type(self), lambda obj: isinstance(obj, property)):
577
906
if not name.startswith("_"):
578
907
self.client_structure.append(name)
579
908
600
929
if not quiet:
601
930
logger.info("Disabling client %s", self.name)
602
931
if getattr(self, "disable_initiator_tag", None) is not None:
603
gobject.source_remove(self.disable_initiator_tag)
932
GObject.source_remove(self.disable_initiator_tag)
604
933
self.disable_initiator_tag = None
605
934
self.expires = None
606
935
if getattr(self, "checker_initiator_tag", None) is not None:
607
gobject.source_remove(self.checker_initiator_tag)
936
GObject.source_remove(self.checker_initiator_tag)
608
937
self.checker_initiator_tag = None
609
938
self.stop_checker()
610
939
self.enabled = False
611
940
if not quiet:
612
941
self.send_changedstate()
613
# Do not run this again if called by a gobject.timeout_add
942
# Do not run this again if called by a GObject.timeout_add
614
943
return False
615
944
616
945
def __del__(self):
620
949
# Schedule a new checker to be started an 'interval' from now,
621
950
# and every interval from then on.
622
951
if self.checker_initiator_tag is not None:
623
gobject.source_remove(self.checker_initiator_tag)
624
self.checker_initiator_tag = (gobject.timeout_add
625
(self.interval_milliseconds(),
626
self.start_checker))
952
GObject.source_remove(self.checker_initiator_tag)
953
self.checker_initiator_tag = GObject.timeout_add(
954
int(self.interval.total_seconds() * 1000),
955
self.start_checker)
627
956
# Schedule a disable() when 'timeout' has passed
628
957
if self.disable_initiator_tag is not None:
629
gobject.source_remove(self.disable_initiator_tag)
630
self.disable_initiator_tag = (gobject.timeout_add
631
(self.timeout_milliseconds(),
632
self.disable))
958
GObject.source_remove(self.disable_initiator_tag)
959
self.disable_initiator_tag = GObject.timeout_add(
960
int(self.timeout.total_seconds() * 1000), self.disable)
633
961
# Also start a new checker *right now*.
634
962
self.start_checker()
635
963
636
def checker_callback(self, pid, condition, command):
964
def checker_callback(self, source, condition, connection,
965
command):
637
966
"""The checker has completed, so take appropriate actions."""
638
967
self.checker_callback_tag = None
639
968
self.checker = None
640
if os.WIFEXITED(condition):
641
self.last_checker_status = os.WEXITSTATUS(condition)
969
# Read return code from connection (see call_pipe)
970
returncode = connection.recv()
971
connection.close()
972
973
if returncode >= 0:
974
self.last_checker_status = returncode
975
self.last_checker_signal = None
642
976
if self.last_checker_status == 0:
643
977
logger.info("Checker for %(name)s succeeded",
644
978
vars(self))
645
979
self.checked_ok()
646
980
else:
647
logger.info("Checker for %(name)s failed",
648
vars(self))
981
logger.info("Checker for %(name)s failed", vars(self))
649
982
else:
650
983
self.last_checker_status = -1
984
self.last_checker_signal = -returncode
651
985
logger.warning("Checker for %(name)s crashed?",
652
986
vars(self))
987
return False
653
988
654
989
def checked_ok(self):
655
990
"""Assert that the client has been seen, alive and well."""
656
991
self.last_checked_ok = datetime.datetime.utcnow()
657
992
self.last_checker_status = 0
993
self.last_checker_signal = None
658
994
self.bump_timeout()
659
995
660
996
def bump_timeout(self, timeout=None):
662
998
if timeout is None:
663
999
timeout = self.timeout
664
1000
if self.disable_initiator_tag is not None:
665
gobject.source_remove(self.disable_initiator_tag)
1001
GObject.source_remove(self.disable_initiator_tag)
666
1002
self.disable_initiator_tag = None
667
1003
if getattr(self, "enabled", False):
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
1004
self.disable_initiator_tag = GObject.timeout_add(
1005
int(timeout.total_seconds() * 1000), self.disable)
671
1006
self.expires = datetime.datetime.utcnow() + timeout
672
1007
673
1008
def need_approval(self):
687
1022
# than 'timeout' for the client to be disabled, which is as it
688
1023
# should be.
689
1024
690
# If a checker exists, make sure it is not a zombie
691
try:
692
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
693
except AttributeError:
694
pass
695
except OSError as error:
696
if error.errno != errno.ECHILD:
697
raise
698
else:
699
if pid:
700
logger.warning("Checker was a zombie")
701
gobject.source_remove(self.checker_callback_tag)
702
self.checker_callback(pid, status,
703
self.current_checker_command)
1025
if self.checker is not None and not self.checker.is_alive():
1026
logger.warning("Checker was not alive; joining")
1027
self.checker.join()
1028
self.checker = None
704
1029
# Start a new checker if needed
705
1030
if self.checker is None:
706
1031
# Escape attributes for the shell
707
escaped_attrs = dict(
708
(attr, re.escape(unicode(getattr(self, attr))))
709
for attr in
710
self.runtime_expansions)
1032
escaped_attrs = {
1033
attr: re.escape(str(getattr(self, attr)))
1034
for attr in self.runtime_expansions }
711
1035
try:
712
1036
command = self.checker_command % escaped_attrs
713
1037
except TypeError as error:
714
1038
logger.error('Could not format string "%s"',
715
self.checker_command, exc_info=error)
716
return True # Try again later
1039
self.checker_command,
1040
exc_info=error)
1041
return True # Try again later
717
1042
self.current_checker_command = command
718
try:
719
logger.info("Starting checker %r for %s",
720
command, self.name)
721
# We don't need to redirect stdout and stderr, since
722
# in normal mode, that is already done by daemon(),
723
# and in debug mode we don't want to. (Stdin is
724
# always replaced by /dev/null.)
725
# The exception is when not debugging but nevertheless
726
# running in the foreground; use the previously
727
# created wnull.
728
popen_args = {}
729
if (not self.server_settings["debug"]
730
and self.server_settings["foreground"]):
731
popen_args.update({"stdout": wnull,
732
"stderr": wnull })
733
self.checker = subprocess.Popen(command,
734
close_fds=True,
735
shell=True, cwd="/",
736
**popen_args)
737
except OSError as error:
738
logger.error("Failed to start subprocess",
739
exc_info=error)
740
return True
741
self.checker_callback_tag = (gobject.child_watch_add
742
(self.checker.pid,
743
self.checker_callback,
744
data=command))
745
# The checker may have completed before the gobject
746
# watch was added. Check for this.
747
try:
748
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
749
except OSError as error:
750
if error.errno == errno.ECHILD:
751
# This should never happen
752
logger.error("Child process vanished",
753
exc_info=error)
754
return True
755
raise
756
if pid:
757
gobject.source_remove(self.checker_callback_tag)
758
self.checker_callback(pid, status, command)
759
# Re-run this periodically if run by gobject.timeout_add
1043
logger.info("Starting checker %r for %s", command,
1044
self.name)
1045
# We don't need to redirect stdout and stderr, since
1046
# in normal mode, that is already done by daemon(),
1047
# and in debug mode we don't want to. (Stdin is
1048
# always replaced by /dev/null.)
1049
# The exception is when not debugging but nevertheless
1050
# running in the foreground; use the previously
1051
# created wnull.
1052
popen_args = { "close_fds": True,
1053
"shell": True,
1054
"cwd": "/" }
1055
if (not self.server_settings["debug"]
1056
and self.server_settings["foreground"]):
1057
popen_args.update({"stdout": wnull,
1058
"stderr": wnull })
1059
pipe = multiprocessing.Pipe(duplex = False)
1060
self.checker = multiprocessing.Process(
1061
target = call_pipe,
1062
args = (pipe[1], subprocess.call, command),
1063
kwargs = popen_args)
1064
self.checker.start()
1065
self.checker_callback_tag = GObject.io_add_watch(
1066
pipe[0].fileno(), GObject.IO_IN,
1067
self.checker_callback, pipe[0], command)
1068
# Re-run this periodically if run by GObject.timeout_add
760
1069
return True
761
1070
762
1071
def stop_checker(self):
763
1072
"""Force the checker process, if any, to stop."""
764
1073
if self.checker_callback_tag:
765
gobject.source_remove(self.checker_callback_tag)
1074
GObject.source_remove(self.checker_callback_tag)
766
1075
self.checker_callback_tag = None
767
1076
if getattr(self, "checker", None) is None:
768
1077
return
769
1078
logger.debug("Stopping checker for %(name)s", vars(self))
770
try:
771
self.checker.terminate()
772
#time.sleep(0.5)
773
#if self.checker.poll() is None:
774
# self.checker.kill()
775
except OSError as error:
776
if error.errno != errno.ESRCH: # No such process
777
raise
1079
self.checker.terminate()
778
1080
self.checker = None
779
1081
780
1082
781
def dbus_service_property(dbus_interface, signature="v",
782
access="readwrite", byte_arrays=False):
1083
def dbus_service_property(dbus_interface,
1084
signature="v",
1085
access="readwrite",
1086
byte_arrays=False):
783
1087
"""Decorators for marking methods of a DBusObjectWithProperties to
784
1088
become properties on the D-Bus.
785
1089
794
1098
# "Set" method, so we fail early here:
795
1099
if byte_arrays and signature != "ay":
796
1100
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {0!r}".format(signature))
1101
" signature {!r}".format(signature))
1102
798
1103
def decorator(func):
799
1104
func._dbus_is_property = True
800
1105
func._dbus_interface = dbus_interface
805
1110
func._dbus_name = func._dbus_name[:-14]
806
1111
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
807
1112
return func
1113
808
1114
return decorator
809
1115
810
1116
819
1125
"org.freedesktop.DBus.Property.EmitsChangedSignal":
820
1126
"false"}
821
1127
"""
1128
822
1129
def decorator(func):
823
1130
func._dbus_is_interface = True
824
1131
func._dbus_interface = dbus_interface
825
1132
func._dbus_name = dbus_interface
826
1133
return func
1134
827
1135
return decorator
828
1136
829
1137
831
1139
"""Decorator to annotate D-Bus methods, signals or properties
832
1140
Usage:
833
1141
1142
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1143
"org.freedesktop.DBus.Property."
1144
"EmitsChangedSignal": "false"})
834
1145
@dbus_service_property("org.example.Interface", signature="b",
835
1146
access="r")
836
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
837
"org.freedesktop.DBus.Property."
838
"EmitsChangedSignal": "false"})
839
1147
def Property_dbus_property(self):
840
1148
return dbus.Boolean(False)
1149
1150
See also the DBusObjectWithAnnotations class.
841
1151
"""
1152
842
1153
def decorator(func):
843
1154
func._dbus_annotations = annotations
844
1155
return func
1156
845
1157
return decorator
846
1158
847
1159
848
1160
class DBusPropertyException(dbus.exceptions.DBusException):
849
1161
"""A base class for D-Bus property-related exceptions
850
1162
"""
851
def __unicode__(self):
852
return unicode(str(self))
1163
pass
853
1164
854
1165
855
1166
class DBusPropertyAccessException(DBusPropertyException):
864
1175
pass
865
1176
866
1177
867
class DBusObjectWithProperties(dbus.service.Object):
868
"""A D-Bus object with properties.
1178
class DBusObjectWithAnnotations(dbus.service.Object):
1179
"""A D-Bus object with annotations.
869
1180
870
Classes inheriting from this can use the dbus_service_property
871
decorator to expose methods as D-Bus properties. It exposes the
872
standard Get(), Set(), and GetAll() methods on the D-Bus.
1181
Classes inheriting from this can use the dbus_annotations
1182
decorator to add annotations to methods or signals.
873
1183
"""
874
1184
875
1185
@staticmethod
879
1189
If called like _is_dbus_thing("method") it returns a function
880
1190
suitable for use as predicate to inspect.getmembers().
881
1191
"""
882
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1192
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
883
1193
False)
884
1194
885
1195
def _get_all_dbus_things(self, thing):
886
1196
"""Returns a generator of (name, attribute) pairs
887
1197
"""
888
return ((getattr(athing.__get__(self), "_dbus_name",
889
name),
1198
return ((getattr(athing.__get__(self), "_dbus_name", name),
890
1199
athing.__get__(self))
891
1200
for cls in self.__class__.__mro__
892
1201
for name, athing in
893
inspect.getmembers(cls,
894
self._is_dbus_thing(thing)))
1202
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1203
1204
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1205
out_signature = "s",
1206
path_keyword = 'object_path',
1207
connection_keyword = 'connection')
1208
def Introspect(self, object_path, connection):
1209
"""Overloading of standard D-Bus method.
1210
1211
Inserts annotation tags on methods and signals.
1212
"""
1213
xmlstring = dbus.service.Object.Introspect(self, object_path,
1214
connection)
1215
try:
1216
document = xml.dom.minidom.parseString(xmlstring)
1217
1218
for if_tag in document.getElementsByTagName("interface"):
1219
# Add annotation tags
1220
for typ in ("method", "signal"):
1221
for tag in if_tag.getElementsByTagName(typ):
1222
annots = dict()
1223
for name, prop in (self.
1224
_get_all_dbus_things(typ)):
1225
if (name == tag.getAttribute("name")
1226
and prop._dbus_interface
1227
== if_tag.getAttribute("name")):
1228
annots.update(getattr(
1229
prop, "_dbus_annotations", {}))
1230
for name, value in annots.items():
1231
ann_tag = document.createElement(
1232
"annotation")
1233
ann_tag.setAttribute("name", name)
1234
ann_tag.setAttribute("value", value)
1235
tag.appendChild(ann_tag)
1236
# Add interface annotation tags
1237
for annotation, value in dict(
1238
itertools.chain.from_iterable(
1239
annotations().items()
1240
for name, annotations
1241
in self._get_all_dbus_things("interface")
1242
if name == if_tag.getAttribute("name")
1243
)).items():
1244
ann_tag = document.createElement("annotation")
1245
ann_tag.setAttribute("name", annotation)
1246
ann_tag.setAttribute("value", value)
1247
if_tag.appendChild(ann_tag)
1248
# Fix argument name for the Introspect method itself
1249
if (if_tag.getAttribute("name")
1250
== dbus.INTROSPECTABLE_IFACE):
1251
for cn in if_tag.getElementsByTagName("method"):
1252
if cn.getAttribute("name") == "Introspect":
1253
for arg in cn.getElementsByTagName("arg"):
1254
if (arg.getAttribute("direction")
1255
== "out"):
1256
arg.setAttribute("name",
1257
"xml_data")
1258
xmlstring = document.toxml("utf-8")
1259
document.unlink()
1260
except (AttributeError, xml.dom.DOMException,
1261
xml.parsers.expat.ExpatError) as error:
1262
logger.error("Failed to override Introspection method",
1263
exc_info=error)
1264
return xmlstring
1265
1266
1267
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1268
"""A D-Bus object with properties.
1269
1270
Classes inheriting from this can use the dbus_service_property
1271
decorator to expose methods as D-Bus properties. It exposes the
1272
standard Get(), Set(), and GetAll() methods on the D-Bus.
1273
"""
895
1274
896
1275
def _get_dbus_property(self, interface_name, property_name):
897
1276
"""Returns a bound method if one exists which is a D-Bus
898
1277
property with the specified name and interface.
899
1278
"""
900
for cls in self.__class__.__mro__:
901
for name, value in (inspect.getmembers
902
(cls,
903
self._is_dbus_thing("property"))):
1279
for cls in self.__class__.__mro__:
1280
for name, value in inspect.getmembers(
1281
cls, self._is_dbus_thing("property")):
904
1282
if (value._dbus_name == property_name
905
1283
and value._dbus_interface == interface_name):
906
1284
return value.__get__(self)
907
1285
908
1286
# No such property
909
raise DBusPropertyNotFound(self.dbus_object_path + ":"
910
+ interface_name + "."
911
+ property_name)
912
913
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1287
raise DBusPropertyNotFound("{}:{}.{}".format(
1288
self.dbus_object_path, interface_name, property_name))
1289
1290
@classmethod
1291
def _get_all_interface_names(cls):
1292
"""Get a sequence of all interfaces supported by an object"""
1293
return (name for name in set(getattr(getattr(x, attr),
1294
"_dbus_interface", None)
1295
for x in (inspect.getmro(cls))
1296
for attr in dir(x))
1297
if name is not None)
1298
1299
@dbus.service.method(dbus.PROPERTIES_IFACE,
1300
in_signature="ss",
914
1301
out_signature="v")
915
1302
def Get(self, interface_name, property_name):
916
1303
"""Standard D-Bus property Get() method, see D-Bus standard.
934
1321
# The byte_arrays option is not supported yet on
935
1322
# signatures other than "ay".
936
1323
if prop._dbus_signature != "ay":
937
raise ValueError
1324
raise ValueError("Byte arrays not supported for non-"
1325
"'ay' signature {!r}"
1326
.format(prop._dbus_signature))
938
1327
value = dbus.ByteArray(b''.join(chr(byte)
939
1328
for byte in value))
940
1329
prop(value)
941
1330
942
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1331
@dbus.service.method(dbus.PROPERTIES_IFACE,
1332
in_signature="s",
943
1333
out_signature="a{sv}")
944
1334
def GetAll(self, interface_name):
945
1335
"""Standard D-Bus property GetAll() method, see D-Bus
960
1350
if not hasattr(value, "variant_level"):
961
1351
properties[name] = value
962
1352
continue
963
properties[name] = type(value)(value, variant_level=
964
value.variant_level+1)
1353
properties[name] = type(value)(
1354
value, variant_level = value.variant_level + 1)
965
1355
return dbus.Dictionary(properties, signature="sv")
966
1356
1357
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1358
def PropertiesChanged(self, interface_name, changed_properties,
1359
invalidated_properties):
1360
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1361
standard.
1362
"""
1363
pass
1364
967
1365
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
968
1366
out_signature="s",
969
1367
path_keyword='object_path',
973
1371
974
1372
Inserts property tags and interface annotation tags.
975
1373
"""
976
xmlstring = dbus.service.Object.Introspect(self, object_path,
977
connection)
1374
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1375
object_path,
1376
connection)
978
1377
try:
979
1378
document = xml.dom.minidom.parseString(xmlstring)
1379
980
1380
def make_tag(document, name, prop):
981
1381
e = document.createElement("property")
982
1382
e.setAttribute("name", name)
983
1383
e.setAttribute("type", prop._dbus_signature)
984
1384
e.setAttribute("access", prop._dbus_access)
985
1385
return e
1386
986
1387
for if_tag in document.getElementsByTagName("interface"):
987
1388
# Add property tags
988
1389
for tag in (make_tag(document, name, prop)
991
1392
if prop._dbus_interface
992
1393
== if_tag.getAttribute("name")):
993
1394
if_tag.appendChild(tag)
994
# Add annotation tags
995
for typ in ("method", "signal", "property"):
996
for tag in if_tag.getElementsByTagName(typ):
997
annots = dict()
998
for name, prop in (self.
999
_get_all_dbus_things(typ)):
1000
if (name == tag.getAttribute("name")
1001
and prop._dbus_interface
1002
== if_tag.getAttribute("name")):
1003
annots.update(getattr
1004
(prop,
1005
"_dbus_annotations",
1006
{}))
1007
for name, value in annots.iteritems():
1008
ann_tag = document.createElement(
1009
"annotation")
1010
ann_tag.setAttribute("name", name)
1011
ann_tag.setAttribute("value", value)
1012
tag.appendChild(ann_tag)
1013
# Add interface annotation tags
1014
for annotation, value in dict(
1015
itertools.chain.from_iterable(
1016
annotations().iteritems()
1017
for name, annotations in
1018
self._get_all_dbus_things("interface")
1019
if name == if_tag.getAttribute("name")
1020
)).iteritems():
1021
ann_tag = document.createElement("annotation")
1022
ann_tag.setAttribute("name", annotation)
1023
ann_tag.setAttribute("value", value)
1024
if_tag.appendChild(ann_tag)
1395
# Add annotation tags for properties
1396
for tag in if_tag.getElementsByTagName("property"):
1397
annots = dict()
1398
for name, prop in self._get_all_dbus_things(
1399
"property"):
1400
if (name == tag.getAttribute("name")
1401
and prop._dbus_interface
1402
== if_tag.getAttribute("name")):
1403
annots.update(getattr(
1404
prop, "_dbus_annotations", {}))
1405
for name, value in annots.items():
1406
ann_tag = document.createElement(
1407
"annotation")
1408
ann_tag.setAttribute("name", name)
1409
ann_tag.setAttribute("value", value)
1410
tag.appendChild(ann_tag)
1025
1411
# Add the names to the return values for the
1026
1412
# "org.freedesktop.DBus.Properties" methods
1027
1413
if (if_tag.getAttribute("name")
1045
1431
exc_info=error)
1046
1432
return xmlstring
1047
1433
1434
try:
1435
dbus.OBJECT_MANAGER_IFACE
1436
except AttributeError:
1437
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1438
1439
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1440
"""A D-Bus object with an ObjectManager.
1441
1442
Classes inheriting from this exposes the standard
1443
GetManagedObjects call and the InterfacesAdded and
1444
InterfacesRemoved signals on the standard
1445
"org.freedesktop.DBus.ObjectManager" interface.
1446
1447
Note: No signals are sent automatically; they must be sent
1448
manually.
1449
"""
1450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1451
out_signature = "a{oa{sa{sv}}}")
1452
def GetManagedObjects(self):
1453
"""This function must be overridden"""
1454
raise NotImplementedError()
1455
1456
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1457
signature = "oa{sa{sv}}")
1458
def InterfacesAdded(self, object_path, interfaces_and_properties):
1459
pass
1460
1461
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1462
def InterfacesRemoved(self, object_path, interfaces):
1463
pass
1464
1465
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1466
out_signature = "s",
1467
path_keyword = 'object_path',
1468
connection_keyword = 'connection')
1469
def Introspect(self, object_path, connection):
1470
"""Overloading of standard D-Bus method.
1471
1472
Override return argument name of GetManagedObjects to be
1473
"objpath_interfaces_and_properties"
1474
"""
1475
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1476
object_path,
1477
connection)
1478
try:
1479
document = xml.dom.minidom.parseString(xmlstring)
1480
1481
for if_tag in document.getElementsByTagName("interface"):
1482
# Fix argument name for the GetManagedObjects method
1483
if (if_tag.getAttribute("name")
1484
== dbus.OBJECT_MANAGER_IFACE):
1485
for cn in if_tag.getElementsByTagName("method"):
1486
if (cn.getAttribute("name")
1487
== "GetManagedObjects"):
1488
for arg in cn.getElementsByTagName("arg"):
1489
if (arg.getAttribute("direction")
1490
== "out"):
1491
arg.setAttribute(
1492
"name",
1493
"objpath_interfaces"
1494
"_and_properties")
1495
xmlstring = document.toxml("utf-8")
1496
document.unlink()
1497
except (AttributeError, xml.dom.DOMException,
1498
xml.parsers.expat.ExpatError) as error:
1499
logger.error("Failed to override Introspection method",
1500
exc_info = error)
1501
return xmlstring
1048
1502
1049
1503
def datetime_to_dbus(dt, variant_level=0):
1050
1504
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1051
1505
if dt is None:
1052
1506
return dbus.String("", variant_level = variant_level)
1053
return dbus.String(dt.isoformat(),
1054
variant_level=variant_level)
1507
return dbus.String(dt.isoformat(), variant_level=variant_level)
1055
1508
1056
1509
1057
1510
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1077
1530
(from DBusObjectWithProperties) and interfaces (from the
1078
1531
dbus_interface_annotations decorator).
1079
1532
"""
1533
1080
1534
def wrapper(cls):
1081
1535
for orig_interface_name, alt_interface_name in (
1082
alt_interface_names.iteritems()):
1536
alt_interface_names.items()):
1083
1537
attr = {}
1084
1538
interface_names = set()
1085
1539
# Go though all attributes of the class
1087
1541
# Ignore non-D-Bus attributes, and D-Bus attributes
1088
1542
# with the wrong interface name
1089
1543
if (not hasattr(attribute, "_dbus_interface")
1090
or not attribute._dbus_interface
1091
.startswith(orig_interface_name)):
1544
or not attribute._dbus_interface.startswith(
1545
orig_interface_name)):
1092
1546
continue
1093
1547
# Create an alternate D-Bus interface name based on
1094
1548
# the current name
1095
alt_interface = (attribute._dbus_interface
1096
.replace(orig_interface_name,
1097
alt_interface_name))
1549
alt_interface = attribute._dbus_interface.replace(
1550
orig_interface_name, alt_interface_name)
1098
1551
interface_names.add(alt_interface)
1099
1552
# Is this a D-Bus signal?
1100
1553
if getattr(attribute, "_dbus_is_signal", False):
1101
1554
# Extract the original non-method undecorated
1102
1555
# function by black magic
1103
nonmethod_func = (dict(
1556
if sys.version_info.major == 2:
1557
nonmethod_func = (dict(
1104
1558
zip(attribute.func_code.co_freevars,
1105
attribute.__closure__))["func"]
1106
.cell_contents)
1559
attribute.__closure__))
1560
["func"].cell_contents)
1561
else:
1562
nonmethod_func = (dict(
1563
zip(attribute.__code__.co_freevars,
1564
attribute.__closure__))
1565
["func"].cell_contents)
1107
1566
# Create a new, but exactly alike, function
1108
1567
# object, and decorate it to be a new D-Bus signal
1109
1568
# with the alternate D-Bus interface name
1110
new_function = (dbus.service.signal
1111
(alt_interface,
1112
attribute._dbus_signature)
1113
(types.FunctionType(
1114
nonmethod_func.func_code,
1115
nonmethod_func.func_globals,
1116
nonmethod_func.func_name,
1117
nonmethod_func.func_defaults,
1118
nonmethod_func.func_closure)))
1569
new_function = copy_function(nonmethod_func)
1570
new_function = (dbus.service.signal(
1571
alt_interface,
1572
attribute._dbus_signature)(new_function))
1119
1573
# Copy annotations, if any
1120
1574
try:
1121
new_function._dbus_annotations = (
1122
dict(attribute._dbus_annotations))
1575
new_function._dbus_annotations = dict(
1576
attribute._dbus_annotations)
1123
1577
except AttributeError:
1124
1578
pass
1125
1579
# Define a creator of a function to call both the
1130
1584
"""This function is a scope container to pass
1131
1585
func1 and func2 to the "call_both" function
1132
1586
outside of its arguments"""
1587
1588
@functools.wraps(func2)
1133
1589
def call_both(*args, **kwargs):
1134
1590
"""This function will emit two D-Bus
1135
1591
signals by calling func1 and func2"""
1136
1592
func1(*args, **kwargs)
1137
1593
func2(*args, **kwargs)
1594
# Make wrapper function look like a D-Bus signal
1595
for name, attr in inspect.getmembers(func2):
1596
if name.startswith("_dbus_"):
1597
setattr(call_both, name, attr)
1598
1138
1599
return call_both
1139
1600
# Create the "call_both" function and add it to
1140
1601
# the class
1145
1606
# object. Decorate it to be a new D-Bus method
1146
1607
# with the alternate D-Bus interface name. Add it
1147
1608
# to the class.
1148
attr[attrname] = (dbus.service.method
1149
(alt_interface,
1150
attribute._dbus_in_signature,
1151
attribute._dbus_out_signature)
1152
(types.FunctionType
1153
(attribute.func_code,
1154
attribute.func_globals,
1155
attribute.func_name,
1156
attribute.func_defaults,
1157
attribute.func_closure)))
1609
attr[attrname] = (
1610
dbus.service.method(
1611
alt_interface,
1612
attribute._dbus_in_signature,
1613
attribute._dbus_out_signature)
1614
(copy_function(attribute)))
1158
1615
# Copy annotations, if any
1159
1616
try:
1160
attr[attrname]._dbus_annotations = (
1161
dict(attribute._dbus_annotations))
1617
attr[attrname]._dbus_annotations = dict(
1618
attribute._dbus_annotations)
1162
1619
except AttributeError:
1163
1620
pass
1164
1621
# Is this a D-Bus property?
1167
1624
# object, and decorate it to be a new D-Bus
1168
1625
# property with the alternate D-Bus interface
1169
1626
# name. Add it to the class.
1170
attr[attrname] = (dbus_service_property
1171
(alt_interface,
1172
attribute._dbus_signature,
1173
attribute._dbus_access,
1174
attribute
1175
._dbus_get_args_options
1176
["byte_arrays"])
1177
(types.FunctionType
1178
(attribute.func_code,
1179
attribute.func_globals,
1180
attribute.func_name,
1181
attribute.func_defaults,
1182
attribute.func_closure)))
1627
attr[attrname] = (dbus_service_property(
1628
alt_interface, attribute._dbus_signature,
1629
attribute._dbus_access,
1630
attribute._dbus_get_args_options
1631
["byte_arrays"])
1632
(copy_function(attribute)))
1183
1633
# Copy annotations, if any
1184
1634
try:
1185
attr[attrname]._dbus_annotations = (
1186
dict(attribute._dbus_annotations))
1635
attr[attrname]._dbus_annotations = dict(
1636
attribute._dbus_annotations)
1187
1637
except AttributeError:
1188
1638
pass
1189
1639
# Is this a D-Bus interface?
1192
1642
# object. Decorate it to be a new D-Bus interface
1193
1643
# with the alternate D-Bus interface name. Add it
1194
1644
# to the class.
1195
attr[attrname] = (dbus_interface_annotations
1196
(alt_interface)
1197
(types.FunctionType
1198
(attribute.func_code,
1199
attribute.func_globals,
1200
attribute.func_name,
1201
attribute.func_defaults,
1202
attribute.func_closure)))
1645
attr[attrname] = (
1646
dbus_interface_annotations(alt_interface)
1647
(copy_function(attribute)))
1203
1648
if deprecate:
1204
1649
# Deprecate all alternate interfaces
1205
iname="_AlternateDBusNames_interface_annotation{0}"
1650
iname="_AlternateDBusNames_interface_annotation{}"
1206
1651
for interface_name in interface_names:
1652
1207
1653
@dbus_interface_annotations(interface_name)
1208
1654
def func(self):
1209
1655
return { "org.freedesktop.DBus.Deprecated":
1210
"true" }
1656
"true" }
1211
1657
# Find an unused name
1212
1658
for aname in (iname.format(i)
1213
1659
for i in itertools.count()):
1217
1663
if interface_names:
1218
1664
# Replace the class with a new subclass of it with
1219
1665
# methods, signals, etc. as created above.
1220
cls = type(b"{0}Alternate".format(cls.__name__),
1221
(cls,), attr)
1666
if sys.version_info.major == 2:
1667
cls = type(b"{}Alternate".format(cls.__name__),
1668
(cls, ), attr)
1669
else:
1670
cls = type("{}Alternate".format(cls.__name__),
1671
(cls, ), attr)
1222
1672
return cls
1673
1223
1674
return wrapper
1224
1675
1225
1676
1226
1677
@alternate_dbus_interfaces({"se.recompile.Mandos":
1227
"se.bsnet.fukt.Mandos"})
1678
"se.bsnet.fukt.Mandos"})
1228
1679
class ClientDBus(Client, DBusObjectWithProperties):
1229
1680
"""A Client class using D-Bus
1230
1681
1234
1685
"""
1235
1686
1236
1687
runtime_expansions = (Client.runtime_expansions
1237
+ ("dbus_object_path",))
1688
+ ("dbus_object_path", ))
1689
1690
_interface = "se.recompile.Mandos.Client"
1238
1691
1239
1692
# dbus.service.Object doesn't use super(), so we can't either.
1240
1693
1243
1696
Client.__init__(self, *args, **kwargs)
1244
1697
# Only now, when this client is initialized, can it show up on
1245
1698
# the D-Bus
1246
client_object_name = unicode(self.name).translate(
1699
client_object_name = str(self.name).translate(
1247
1700
{ord("."): ord("_"),
1248
1701
ord("-"): ord("_")})
1249
self.dbus_object_path = (dbus.ObjectPath
1250
("/clients/" + client_object_name))
1702
self.dbus_object_path = dbus.ObjectPath(
1703
"/clients/" + client_object_name)
1251
1704
DBusObjectWithProperties.__init__(self, self.bus,
1252
1705
self.dbus_object_path)
1253
1706
1254
def notifychangeproperty(transform_func,
1255
dbus_name, type_func=lambda x: x,
1256
variant_level=1):
1707
def notifychangeproperty(transform_func, dbus_name,
1708
type_func=lambda x: x,
1709
variant_level=1,
1710
invalidate_only=False,
1711
_interface=_interface):
1257
1712
""" Modify a variable so that it's a property which announces
1258
1713
its changes to DBus.
1259
1714
1264
1719
to the D-Bus. Default: no transform
1265
1720
variant_level: D-Bus variant level. Default: 1
1266
1721
"""
1267
attrname = "_{0}".format(dbus_name)
1722
attrname = "_{}".format(dbus_name)
1723
1268
1724
def setter(self, value):
1269
1725
if hasattr(self, "dbus_object_path"):
1270
1726
if (not hasattr(self, attrname) or
1271
1727
type_func(getattr(self, attrname, None))
1272
1728
!= type_func(value)):
1273
dbus_value = transform_func(type_func(value),
1274
variant_level
1275
=variant_level)
1276
self.PropertyChanged(dbus.String(dbus_name),
1277
dbus_value)
1729
if invalidate_only:
1730
self.PropertiesChanged(
1731
_interface, dbus.Dictionary(),
1732
dbus.Array((dbus_name, )))
1733
else:
1734
dbus_value = transform_func(
1735
type_func(value),
1736
variant_level = variant_level)
1737
self.PropertyChanged(dbus.String(dbus_name),
1738
dbus_value)
1739
self.PropertiesChanged(
1740
_interface,
1741
dbus.Dictionary({ dbus.String(dbus_name):
1742
dbus_value }),
1743
dbus.Array())
1278
1744
setattr(self, attrname, value)
1279
1745
1280
1746
return property(lambda self: getattr(self, attrname), setter)
1286
1752
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1287
1753
last_enabled = notifychangeproperty(datetime_to_dbus,
1288
1754
"LastEnabled")
1289
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1290
type_func = lambda checker:
1291
checker is not None)
1755
checker = notifychangeproperty(
1756
dbus.Boolean, "CheckerRunning",
1757
type_func = lambda checker: checker is not None)
1292
1758
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1293
1759
"LastCheckedOK")
1294
1760
last_checker_status = notifychangeproperty(dbus.Int16,
1297
1763
datetime_to_dbus, "LastApprovalRequest")
1298
1764
approved_by_default = notifychangeproperty(dbus.Boolean,
1299
1765
"ApprovedByDefault")
1300
approval_delay = notifychangeproperty(dbus.UInt64,
1301
"ApprovalDelay",
1302
type_func =
1303
timedelta_to_milliseconds)
1766
approval_delay = notifychangeproperty(
1767
dbus.UInt64, "ApprovalDelay",
1768
type_func = lambda td: td.total_seconds() * 1000)
1304
1769
approval_duration = notifychangeproperty(
1305
1770
dbus.UInt64, "ApprovalDuration",
1306
type_func = timedelta_to_milliseconds)
1771
type_func = lambda td: td.total_seconds() * 1000)
1307
1772
host = notifychangeproperty(dbus.String, "Host")
1308
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1309
type_func =
1310
timedelta_to_milliseconds)
1773
timeout = notifychangeproperty(
1774
dbus.UInt64, "Timeout",
1775
type_func = lambda td: td.total_seconds() * 1000)
1311
1776
extended_timeout = notifychangeproperty(
1312
1777
dbus.UInt64, "ExtendedTimeout",
1313
type_func = timedelta_to_milliseconds)
1314
interval = notifychangeproperty(dbus.UInt64,
1315
"Interval",
1316
type_func =
1317
timedelta_to_milliseconds)
1778
type_func = lambda td: td.total_seconds() * 1000)
1779
interval = notifychangeproperty(
1780
dbus.UInt64, "Interval",
1781
type_func = lambda td: td.total_seconds() * 1000)
1318
1782
checker_command = notifychangeproperty(dbus.String, "Checker")
1783
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1784
invalidate_only=True)
1319
1785
1320
1786
del notifychangeproperty
1321
1787
1328
1794
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1329
1795
Client.__del__(self, *args, **kwargs)
1330
1796
1331
def checker_callback(self, pid, condition, command,
1332
*args, **kwargs):
1333
self.checker_callback_tag = None
1334
self.checker = None
1335
if os.WIFEXITED(condition):
1336
exitstatus = os.WEXITSTATUS(condition)
1797
def checker_callback(self, source, condition,
1798
connection, command, *args, **kwargs):
1799
ret = Client.checker_callback(self, source, condition,
1800
connection, command, *args,
1801
**kwargs)
1802
exitstatus = self.last_checker_status
1803
if exitstatus >= 0:
1337
1804
# Emit D-Bus signal
1338
1805
self.CheckerCompleted(dbus.Int16(exitstatus),
1339
dbus.Int64(condition),
1806
# This is specific to GNU libC
1807
dbus.Int64(exitstatus << 8),
1340
1808
dbus.String(command))
1341
1809
else:
1342
1810
# Emit D-Bus signal
1343
1811
self.CheckerCompleted(dbus.Int16(-1),
1344
dbus.Int64(condition),
1812
dbus.Int64(
1813
# This is specific to GNU libC
1814
(exitstatus << 8)
1815
| self.last_checker_signal),
1345
1816
dbus.String(command))
1346
1347
return Client.checker_callback(self, pid, condition, command,
1348
*args, **kwargs)
1817
return ret
1349
1818
1350
1819
def start_checker(self, *args, **kwargs):
1351
old_checker = self.checker
1352
if self.checker is not None:
1353
old_checker_pid = self.checker.pid
1354
else:
1355
old_checker_pid = None
1820
old_checker_pid = getattr(self.checker, "pid", None)
1356
1821
r = Client.start_checker(self, *args, **kwargs)
1357
1822
# Only if new checker process was started
1358
1823
if (self.checker is not None
1367
1832
1368
1833
def approve(self, value=True):
1369
1834
self.approved = value
1370
gobject.timeout_add(timedelta_to_milliseconds
1371
(self.approval_duration),
1372
self._reset_approved)
1835
GObject.timeout_add(int(self.approval_duration.total_seconds()
1836
* 1000), self._reset_approved)
1373
1837
self.send_changedstate()
1374
1838
1375
1839
## D-Bus methods, signals & properties
1376
_interface = "se.recompile.Mandos.Client"
1377
1840
1378
1841
## Interfaces
1379
1842
1380
@dbus_interface_annotations(_interface)
1381
def _foo(self):
1382
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1383
"false"}
1384
1385
1843
## Signals
1386
1844
1387
1845
# CheckerCompleted - signal
1397
1855
pass
1398
1856
1399
1857
# PropertyChanged - signal
1858
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1400
1859
@dbus.service.signal(_interface, signature="sv")
1401
1860
def PropertyChanged(self, property, value):
1402
1861
"D-Bus signal"
1436
1895
self.checked_ok()
1437
1896
1438
1897
# Enable - method
1898
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1439
1899
@dbus.service.method(_interface)
1440
1900
def Enable(self):
1441
1901
"D-Bus method"
1442
1902
self.enable()
1443
1903
1444
1904
# StartChecker - method
1905
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1445
1906
@dbus.service.method(_interface)
1446
1907
def StartChecker(self):
1447
1908
"D-Bus method"
1448
1909
self.start_checker()
1449
1910
1450
1911
# Disable - method
1912
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1451
1913
@dbus.service.method(_interface)
1452
1914
def Disable(self):
1453
1915
"D-Bus method"
1454
1916
self.disable()
1455
1917
1456
1918
# StopChecker - method
1919
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1457
1920
@dbus.service.method(_interface)
1458
1921
def StopChecker(self):
1459
1922
self.stop_checker()
1466
1929
return dbus.Boolean(bool(self.approvals_pending))
1467
1930
1468
1931
# ApprovedByDefault - property
1469
@dbus_service_property(_interface, signature="b",
1932
@dbus_service_property(_interface,
1933
signature="b",
1470
1934
access="readwrite")
1471
1935
def ApprovedByDefault_dbus_property(self, value=None):
1472
1936
if value is None: # get
1474
1938
self.approved_by_default = bool(value)
1475
1939
1476
1940
# ApprovalDelay - property
1477
@dbus_service_property(_interface, signature="t",
1941
@dbus_service_property(_interface,
1942
signature="t",
1478
1943
access="readwrite")
1479
1944
def ApprovalDelay_dbus_property(self, value=None):
1480
1945
if value is None: # get
1481
return dbus.UInt64(self.approval_delay_milliseconds())
1946
return dbus.UInt64(self.approval_delay.total_seconds()
1947
* 1000)
1482
1948
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1483
1949
1484
1950
# ApprovalDuration - property
1485
@dbus_service_property(_interface, signature="t",
1951
@dbus_service_property(_interface,
1952
signature="t",
1486
1953
access="readwrite")
1487
1954
def ApprovalDuration_dbus_property(self, value=None):
1488
1955
if value is None: # get
1489
return dbus.UInt64(timedelta_to_milliseconds(
1490
self.approval_duration))
1956
return dbus.UInt64(self.approval_duration.total_seconds()
1957
* 1000)
1491
1958
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1492
1959
1493
1960
# Name - property
1961
@dbus_annotations(
1962
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1494
1963
@dbus_service_property(_interface, signature="s", access="read")
1495
1964
def Name_dbus_property(self):
1496
1965
return dbus.String(self.name)
1497
1966
1498
1967
# Fingerprint - property
1968
@dbus_annotations(
1969
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1499
1970
@dbus_service_property(_interface, signature="s", access="read")
1500
1971
def Fingerprint_dbus_property(self):
1501
1972
return dbus.String(self.fingerprint)
1502
1973
1503
1974
# Host - property
1504
@dbus_service_property(_interface, signature="s",
1975
@dbus_service_property(_interface,
1976
signature="s",
1505
1977
access="readwrite")
1506
1978
def Host_dbus_property(self, value=None):
1507
1979
if value is None: # get
1508
1980
return dbus.String(self.host)
1509
self.host = unicode(value)
1981
self.host = str(value)
1510
1982
1511
1983
# Created - property
1984
@dbus_annotations(
1985
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1512
1986
@dbus_service_property(_interface, signature="s", access="read")
1513
1987
def Created_dbus_property(self):
1514
1988
return datetime_to_dbus(self.created)
1519
1993
return datetime_to_dbus(self.last_enabled)
1520
1994
1521
1995
# Enabled - property
1522
@dbus_service_property(_interface, signature="b",
1996
@dbus_service_property(_interface,
1997
signature="b",
1523
1998
access="readwrite")
1524
1999
def Enabled_dbus_property(self, value=None):
1525
2000
if value is None: # get
1530
2005
self.disable()
1531
2006
1532
2007
# LastCheckedOK - property
1533
@dbus_service_property(_interface, signature="s",
2008
@dbus_service_property(_interface,
2009
signature="s",
1534
2010
access="readwrite")
1535
2011
def LastCheckedOK_dbus_property(self, value=None):
1536
2012
if value is not None:
1539
2015
return datetime_to_dbus(self.last_checked_ok)
1540
2016
1541
2017
# LastCheckerStatus - property
1542
@dbus_service_property(_interface, signature="n",
1543
access="read")
2018
@dbus_service_property(_interface, signature="n", access="read")
1544
2019
def LastCheckerStatus_dbus_property(self):
1545
2020
return dbus.Int16(self.last_checker_status)
1546
2021
1555
2030
return datetime_to_dbus(self.last_approval_request)
1556
2031
1557
2032
# Timeout - property
1558
@dbus_service_property(_interface, signature="t",
2033
@dbus_service_property(_interface,
2034
signature="t",
1559
2035
access="readwrite")
1560
2036
def Timeout_dbus_property(self, value=None):
1561
2037
if value is None: # get
1562
return dbus.UInt64(self.timeout_milliseconds())
2038
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1563
2039
old_timeout = self.timeout
1564
2040
self.timeout = datetime.timedelta(0, 0, 0, value)
1565
2041
# Reschedule disabling
1573
2049
if (getattr(self, "disable_initiator_tag", None)
1574
2050
is None):
1575
2051
return
1576
gobject.source_remove(self.disable_initiator_tag)
1577
self.disable_initiator_tag = (
1578
gobject.timeout_add(
1579
timedelta_to_milliseconds(self.expires - now),
1580
self.disable))
2052
GObject.source_remove(self.disable_initiator_tag)
2053
self.disable_initiator_tag = GObject.timeout_add(
2054
int((self.expires - now).total_seconds() * 1000),
2055
self.disable)
1581
2056
1582
2057
# ExtendedTimeout - property
1583
@dbus_service_property(_interface, signature="t",
2058
@dbus_service_property(_interface,
2059
signature="t",
1584
2060
access="readwrite")
1585
2061
def ExtendedTimeout_dbus_property(self, value=None):
1586
2062
if value is None: # get
1587
return dbus.UInt64(self.extended_timeout_milliseconds())
2063
return dbus.UInt64(self.extended_timeout.total_seconds()
2064
* 1000)
1588
2065
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1589
2066
1590
2067
# Interval - property
1591
@dbus_service_property(_interface, signature="t",
2068
@dbus_service_property(_interface,
2069
signature="t",
1592
2070
access="readwrite")
1593
2071
def Interval_dbus_property(self, value=None):
1594
2072
if value is None: # get
1595
return dbus.UInt64(self.interval_milliseconds())
2073
return dbus.UInt64(self.interval.total_seconds() * 1000)
1596
2074
self.interval = datetime.timedelta(0, 0, 0, value)
1597
2075
if getattr(self, "checker_initiator_tag", None) is None:
1598
2076
return
1599
2077
if self.enabled:
1600
2078
# Reschedule checker run
1601
gobject.source_remove(self.checker_initiator_tag)
1602
self.checker_initiator_tag = (gobject.timeout_add
1603
(value, self.start_checker))
1604
self.start_checker() # Start one now, too
2079
GObject.source_remove(self.checker_initiator_tag)
2080
self.checker_initiator_tag = GObject.timeout_add(
2081
value, self.start_checker)
2082
self.start_checker() # Start one now, too
1605
2083
1606
2084
# Checker - property
1607
@dbus_service_property(_interface, signature="s",
2085
@dbus_service_property(_interface,
2086
signature="s",
1608
2087
access="readwrite")
1609
2088
def Checker_dbus_property(self, value=None):
1610
2089
if value is None: # get
1611
2090
return dbus.String(self.checker_command)
1612
self.checker_command = unicode(value)
2091
self.checker_command = str(value)
1613
2092
1614
2093
# CheckerRunning - property
1615
@dbus_service_property(_interface, signature="b",
2094
@dbus_service_property(_interface,
2095
signature="b",
1616
2096
access="readwrite")
1617
2097
def CheckerRunning_dbus_property(self, value=None):
1618
2098
if value is None: # get
1623
2103
self.stop_checker()
1624
2104
1625
2105
# ObjectPath - property
2106
@dbus_annotations(
2107
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2108
"org.freedesktop.DBus.Deprecated": "true"})
1626
2109
@dbus_service_property(_interface, signature="o", access="read")
1627
2110
def ObjectPath_dbus_property(self):
1628
2111
return self.dbus_object_path # is already a dbus.ObjectPath
1629
2112
1630
2113
# Secret = property
1631
@dbus_service_property(_interface, signature="ay",
1632
access="write", byte_arrays=True)
2114
@dbus_annotations(
2115
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2116
"invalidates"})
2117
@dbus_service_property(_interface,
2118
signature="ay",
2119
access="write",
2120
byte_arrays=True)
1633
2121
def Secret_dbus_property(self, value):
1634
self.secret = str(value)
2122
self.secret = bytes(value)
1635
2123
1636
2124
del _interface
1637
2125
1641
2129
self._pipe = child_pipe
1642
2130
self._pipe.send(('init', fpr, address))
1643
2131
if not self._pipe.recv():
1644
raise KeyError()
2132
raise KeyError(fpr)
1645
2133
1646
2134
def __getattribute__(self, name):
1647
2135
if name == '_pipe':
1651
2139
if data[0] == 'data':
1652
2140
return data[1]
1653
2141
if data[0] == 'function':
2142
1654
2143
def func(*args, **kwargs):
1655
2144
self._pipe.send(('funcall', name, args, kwargs))
1656
2145
return self._pipe.recv()[1]
2146
1657
2147
return func
1658
2148
1659
2149
def __setattr__(self, name, value):
1671
2161
def handle(self):
1672
2162
with contextlib.closing(self.server.child_pipe) as child_pipe:
1673
2163
logger.info("TCP connection from: %s",
1674
unicode(self.client_address))
2164
str(self.client_address))
1675
2165
logger.debug("Pipe FD: %d",
1676
2166
self.server.child_pipe.fileno())
1677
2167
1678
session = (gnutls.connection
1679
.ClientSession(self.request,
1680
gnutls.connection
1681
.X509Credentials()))
1682
1683
# Note: gnutls.connection.X509Credentials is really a
1684
# generic GnuTLS certificate credentials object so long as
1685
# no X.509 keys are added to it. Therefore, we can use it
1686
# here despite using OpenPGP certificates.
2168
session = gnutls.ClientSession(self.request)
1687
2169
1688
2170
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1689
2171
# "+AES-256-CBC", "+SHA1",
1693
2175
priority = self.server.gnutls_priority
1694
2176
if priority is None:
1695
2177
priority = "NORMAL"
1696
(gnutls.library.functions
1697
.gnutls_priority_set_direct(session._c_object,
1698
priority, None))
2178
gnutls.priority_set_direct(session._c_object, priority,
2179
None)
1699
2180
1700
2181
# Start communication using the Mandos protocol
1701
2182
# Get protocol number
1711
2192
# Start GnuTLS connection
1712
2193
try:
1713
2194
session.handshake()
1714
except gnutls.errors.GNUTLSError as error:
2195
except gnutls.Error as error:
1715
2196
logger.warning("Handshake failed: %s", error)
1716
2197
# Do not run session.bye() here: the session is not
1717
2198
# established. Just abandon the request.
1721
2202
approval_required = False
1722
2203
try:
1723
2204
try:
1724
fpr = self.fingerprint(self.peer_certificate
1725
(session))
1726
except (TypeError,
1727
gnutls.errors.GNUTLSError) as error:
2205
fpr = self.fingerprint(
2206
self.peer_certificate(session))
2207
except (TypeError, gnutls.Error) as error:
1728
2208
logger.warning("Bad certificate: %s", error)
1729
2209
return
1730
2210
logger.debug("Fingerprint: %s", fpr)
1743
2223
while True:
1744
2224
if not client.enabled:
1745
2225
logger.info("Client %s is disabled",
1746
client.name)
2226
client.name)
1747
2227
if self.server.use_dbus:
1748
2228
# Emit D-Bus signal
1749
2229
client.Rejected("Disabled")
1758
2238
if self.server.use_dbus:
1759
2239
# Emit D-Bus signal
1760
2240
client.NeedApproval(
1761
client.approval_delay_milliseconds(),
1762
client.approved_by_default)
2241
client.approval_delay.total_seconds()
2242
* 1000, client.approved_by_default)
1763
2243
else:
1764
2244
logger.warning("Client %s was not approved",
1765
2245
client.name)
1771
2251
#wait until timeout or approved
1772
2252
time = datetime.datetime.now()
1773
2253
client.changedstate.acquire()
1774
client.changedstate.wait(
1775
float(timedelta_to_milliseconds(delay)
1776
/ 1000))
2254
client.changedstate.wait(delay.total_seconds())
1777
2255
client.changedstate.release()
1778
2256
time2 = datetime.datetime.now()
1779
2257
if (time2 - time) >= delay:
1790
2268
else:
1791
2269
delay -= time2 - time
1792
2270
1793
sent_size = 0
1794
while sent_size < len(client.secret):
1795
try:
1796
sent = session.send(client.secret[sent_size:])
1797
except gnutls.errors.GNUTLSError as error:
1798
logger.warning("gnutls send failed",
1799
exc_info=error)
1800
return
1801
logger.debug("Sent: %d, remaining: %d",
1802
sent, len(client.secret)
1803
- (sent_size + sent))
1804
sent_size += sent
2271
try:
2272
session.send(client.secret)
2273
except gnutls.Error as error:
2274
logger.warning("gnutls send failed",
2275
exc_info = error)
2276
return
1805
2277
1806
2278
logger.info("Sending secret to %s", client.name)
1807
2279
# bump the timeout using extended_timeout
1815
2287
client.approvals_pending -= 1
1816
2288
try:
1817
2289
session.bye()
1818
except gnutls.errors.GNUTLSError as error:
2290
except gnutls.Error as error:
1819
2291
logger.warning("GnuTLS bye failed",
1820
2292
exc_info=error)
1821
2293
1823
2295
def peer_certificate(session):
1824
2296
"Return the peer's OpenPGP certificate as a bytestring"
1825
2297
# If not an OpenPGP certificate...
1826
if (gnutls.library.functions
1827
.gnutls_certificate_type_get(session._c_object)
1828
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1829
# ...do the normal thing
1830
return session.peer_certificate
2298
if (gnutls.certificate_type_get(session._c_object)
2299
!= gnutls.CRT_OPENPGP):
2300
# ...return invalid data
2301
return b""
1831
2302
list_size = ctypes.c_uint(1)
1832
cert_list = (gnutls.library.functions
1833
.gnutls_certificate_get_peers
2303
cert_list = (gnutls.certificate_get_peers
1834
2304
(session._c_object, ctypes.byref(list_size)))
1835
2305
if not bool(cert_list) and list_size.value != 0:
1836
raise gnutls.errors.GNUTLSError("error getting peer"
1837
" certificate")
2306
raise gnutls.Error("error getting peer certificate")
1838
2307
if list_size.value == 0:
1839
2308
return None
1840
2309
cert = cert_list[0]
1844
2313
def fingerprint(openpgp):
1845
2314
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1846
2315
# New GnuTLS "datum" with the OpenPGP public key
1847
datum = (gnutls.library.types
1848
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1849
ctypes.POINTER
1850
(ctypes.c_ubyte)),
1851
ctypes.c_uint(len(openpgp))))
2316
datum = gnutls.datum_t(
2317
ctypes.cast(ctypes.c_char_p(openpgp),
2318
ctypes.POINTER(ctypes.c_ubyte)),
2319
ctypes.c_uint(len(openpgp)))
1852
2320
# New empty GnuTLS certificate
1853
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1854
(gnutls.library.functions
1855
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2321
crt = gnutls.openpgp_crt_t()
2322
gnutls.openpgp_crt_init(ctypes.byref(crt))
1856
2323
# Import the OpenPGP public key into the certificate
1857
(gnutls.library.functions
1858
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1859
gnutls.library.constants
1860
.GNUTLS_OPENPGP_FMT_RAW))
2324
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2325
gnutls.OPENPGP_FMT_RAW)
1861
2326
# Verify the self signature in the key
1862
2327
crtverify = ctypes.c_uint()
1863
(gnutls.library.functions
1864
.gnutls_openpgp_crt_verify_self(crt, 0,
1865
ctypes.byref(crtverify)))
2328
gnutls.openpgp_crt_verify_self(crt, 0,
2329
ctypes.byref(crtverify))
1866
2330
if crtverify.value != 0:
1867
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1868
raise (gnutls.errors.CertificateSecurityError
1869
("Verify failed"))
2331
gnutls.openpgp_crt_deinit(crt)
2332
raise gnutls.CertificateSecurityError("Verify failed")
1870
2333
# New buffer for the fingerprint
1871
2334
buf = ctypes.create_string_buffer(20)
1872
2335
buf_len = ctypes.c_size_t()
1873
2336
# Get the fingerprint from the certificate into the buffer
1874
(gnutls.library.functions
1875
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1876
ctypes.byref(buf_len)))
2337
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2338
ctypes.byref(buf_len))
1877
2339
# Deinit the certificate
1878
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2340
gnutls.openpgp_crt_deinit(crt)
1879
2341
# Convert the buffer to a Python bytestring
1880
2342
fpr = ctypes.string_at(buf, buf_len.value)
1881
2343
# Convert the bytestring to hexadecimal notation
1885
2347
1886
2348
class MultiprocessingMixIn(object):
1887
2349
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2350
1888
2351
def sub_process_main(self, request, address):
1889
2352
try:
1890
2353
self.finish_request(request, address)
1902
2365
1903
2366
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1904
2367
""" adds a pipe to the MixIn """
2368
1905
2369
def process_request(self, request, client_address):
1906
2370
"""Overrides and wraps the original process_request().
1907
2371
1928
2392
interface: None or a network interface name (string)
1929
2393
use_ipv6: Boolean; to use IPv6 or not
1930
2394
"""
2395
1931
2396
def __init__(self, server_address, RequestHandlerClass,
1932
interface=None, use_ipv6=True, socketfd=None):
2397
interface=None,
2398
use_ipv6=True,
2399
socketfd=None):
1933
2400
"""If socketfd is set, use that file descriptor instead of
1934
2401
creating a new one with socket.socket().
1935
2402
"""
1976
2443
self.interface)
1977
2444
else:
1978
2445
try:
1979
self.socket.setsockopt(socket.SOL_SOCKET,
1980
SO_BINDTODEVICE,
1981
str(self.interface + '\0'))
2446
self.socket.setsockopt(
2447
socket.SOL_SOCKET, SO_BINDTODEVICE,
2448
(self.interface + "\0").encode("utf-8"))
1982
2449
except socket.error as error:
1983
2450
if error.errno == errno.EPERM:
1984
2451
logger.error("No permission to bind to"
2002
2469
self.server_address = (any_address,
2003
2470
self.server_address[1])
2004
2471
elif not self.server_address[1]:
2005
self.server_address = (self.server_address[0],
2006
0)
2472
self.server_address = (self.server_address[0], 0)
2007
2473
# if self.interface:
2008
2474
# self.server_address = (self.server_address[0],
2009
2475
# 0, # port
2021
2487
gnutls_priority GnuTLS priority string
2022
2488
use_dbus: Boolean; to emit D-Bus signals or not
2023
2489
2024
Assumes a gobject.MainLoop event loop.
2490
Assumes a GObject.MainLoop event loop.
2025
2491
"""
2492
2026
2493
def __init__(self, server_address, RequestHandlerClass,
2027
interface=None, use_ipv6=True, clients=None,
2028
gnutls_priority=None, use_dbus=True, socketfd=None):
2494
interface=None,
2495
use_ipv6=True,
2496
clients=None,
2497
gnutls_priority=None,
2498
use_dbus=True,
2499
socketfd=None):
2029
2500
self.enabled = False
2030
2501
self.clients = clients
2031
2502
if self.clients is None:
2037
2508
interface = interface,
2038
2509
use_ipv6 = use_ipv6,
2039
2510
socketfd = socketfd)
2511
2040
2512
def server_activate(self):
2041
2513
if self.enabled:
2042
2514
return socketserver.TCPServer.server_activate(self)
2046
2518
2047
2519
def add_pipe(self, parent_pipe, proc):
2048
2520
# Call "handle_ipc" for both data and EOF events
2049
gobject.io_add_watch(parent_pipe.fileno(),
2050
gobject.IO_IN | gobject.IO_HUP,
2051
functools.partial(self.handle_ipc,
2052
parent_pipe =
2053
parent_pipe,
2054
proc = proc))
2521
GObject.io_add_watch(
2522
parent_pipe.fileno(),
2523
GObject.IO_IN | GObject.IO_HUP,
2524
functools.partial(self.handle_ipc,
2525
parent_pipe = parent_pipe,
2526
proc = proc))
2055
2527
2056
def handle_ipc(self, source, condition, parent_pipe=None,
2057
proc = None, client_object=None):
2528
def handle_ipc(self, source, condition,
2529
parent_pipe=None,
2530
proc = None,
2531
client_object=None):
2058
2532
# error, or the other end of multiprocessing.Pipe has closed
2059
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2533
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2060
2534
# Wait for other process to exit
2061
2535
proc.join()
2062
2536
return False
2069
2543
fpr = request[1]
2070
2544
address = request[2]
2071
2545
2072
for c in self.clients.itervalues():
2546
for c in self.clients.values():
2073
2547
if c.fingerprint == fpr:
2074
2548
client = c
2075
2549
break
2083
2557
parent_pipe.send(False)
2084
2558
return False
2085
2559
2086
gobject.io_add_watch(parent_pipe.fileno(),
2087
gobject.IO_IN | gobject.IO_HUP,
2088
functools.partial(self.handle_ipc,
2089
parent_pipe =
2090
parent_pipe,
2091
proc = proc,
2092
client_object =
2093
client))
2560
GObject.io_add_watch(
2561
parent_pipe.fileno(),
2562
GObject.IO_IN | GObject.IO_HUP,
2563
functools.partial(self.handle_ipc,
2564
parent_pipe = parent_pipe,
2565
proc = proc,
2566
client_object = client))
2094
2567
parent_pipe.send(True)
2095
2568
# remove the old hook in favor of the new above hook on
2096
2569
# same fileno
2102
2575
2103
2576
parent_pipe.send(('data', getattr(client_object,
2104
2577
funcname)(*args,
2105
**kwargs)))
2578
**kwargs)))
2106
2579
2107
2580
if command == 'getattr':
2108
2581
attrname = request[1]
2109
if callable(client_object.__getattribute__(attrname)):
2110
parent_pipe.send(('function',))
2582
if isinstance(client_object.__getattribute__(attrname),
2583
collections.Callable):
2584
parent_pipe.send(('function', ))
2111
2585
else:
2112
parent_pipe.send(('data', client_object
2113
.__getattribute__(attrname)))
2586
parent_pipe.send((
2587
'data', client_object.__getattribute__(attrname)))
2114
2588
2115
2589
if command == 'setattr':
2116
2590
attrname = request[1]
2147
2621
# avoid excessive use of external libraries.
2148
2622
2149
2623
# New type for defining tokens, syntax, and semantics all-in-one
2150
Token = collections.namedtuple("Token",
2151
("regexp", # To match token; if
2152
# "value" is not None,
2153
# must have a "group"
2154
# containing digits
2155
"value", # datetime.timedelta or
2156
# None
2157
"followers")) # Tokens valid after
2158
# this token
2624
Token = collections.namedtuple("Token", (
2625
"regexp", # To match token; if "value" is not None, must have
2626
# a "group" containing digits
2627
"value", # datetime.timedelta or None
2628
"followers")) # Tokens valid after this token
2159
2629
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2160
2630
# the "duration" ABNF definition in RFC 3339, Appendix A.
2161
2631
token_end = Token(re.compile(r"$"), None, frozenset())
2162
2632
token_second = Token(re.compile(r"(\d+)S"),
2163
2633
datetime.timedelta(seconds=1),
2164
frozenset((token_end,)))
2634
frozenset((token_end, )))
2165
2635
token_minute = Token(re.compile(r"(\d+)M"),
2166
2636
datetime.timedelta(minutes=1),
2167
2637
frozenset((token_second, token_end)))
2183
2653
frozenset((token_month, token_end)))
2184
2654
token_week = Token(re.compile(r"(\d+)W"),
2185
2655
datetime.timedelta(weeks=1),
2186
frozenset((token_end,)))
2656
frozenset((token_end, )))
2187
2657
token_duration = Token(re.compile(r"P"), None,
2188
2658
frozenset((token_year, token_month,
2189
2659
token_day, token_time,
2190
token_week))),
2660
token_week)))
2191
2661
# Define starting values
2192
2662
value = datetime.timedelta() # Value so far
2193
2663
found_token = None
2194
followers = frozenset(token_duration,) # Following valid tokens
2664
followers = frozenset((token_duration, )) # Following valid tokens
2195
2665
s = duration # String left to parse
2196
2666
# Loop until end token is found
2197
2667
while found_token is not token_end:
2214
2684
break
2215
2685
else:
2216
2686
# No currently valid tokens were found
2217
raise ValueError("Invalid RFC 3339 duration")
2687
raise ValueError("Invalid RFC 3339 duration: {!r}"
2688
.format(duration))
2218
2689
# End token found
2219
2690
return value
2220
2691
2244
2715
timevalue = datetime.timedelta(0)
2245
2716
for s in interval.split():
2246
2717
try:
2247
suffix = unicode(s[-1])
2718
suffix = s[-1]
2248
2719
value = int(s[:-1])
2249
2720
if suffix == "d":
2250
2721
delta = datetime.timedelta(value)
2257
2728
elif suffix == "w":
2258
2729
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2259
2730
else:
2260
raise ValueError("Unknown suffix {0!r}"
2261
.format(suffix))
2731
raise ValueError("Unknown suffix {!r}".format(suffix))
2262
2732
except IndexError as e:
2263
2733
raise ValueError(*(e.args))
2264
2734
timevalue += delta
2281
2751
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2282
2752
if not stat.S_ISCHR(os.fstat(null).st_mode):
2283
2753
raise OSError(errno.ENODEV,
2284
"{0} not a character device"
2754
"{} not a character device"
2285
2755
.format(os.devnull))
2286
2756
os.dup2(null, sys.stdin.fileno())
2287
2757
os.dup2(null, sys.stdout.fileno())
2297
2767
2298
2768
parser = argparse.ArgumentParser()
2299
2769
parser.add_argument("-v", "--version", action="version",
2300
version = "%(prog)s {0}".format(version),
2770
version = "%(prog)s {}".format(version),
2301
2771
help="show version number and exit")
2302
2772
parser.add_argument("-i", "--interface", metavar="IF",
2303
2773
help="Bind to interface IF")
2336
2806
help="Directory to save/restore state in")
2337
2807
parser.add_argument("--foreground", action="store_true",
2338
2808
help="Run in foreground", default=None)
2809
parser.add_argument("--no-zeroconf", action="store_false",
2810
dest="zeroconf", help="Do not use Zeroconf",
2811
default=None)
2339
2812
2340
2813
options = parser.parse_args()
2341
2814
2342
2815
if options.check:
2343
2816
import doctest
2344
doctest.testmod()
2345
sys.exit()
2817
fail_count, test_count = doctest.testmod()
2818
sys.exit(os.EX_OK if fail_count == 0 else 1)
2346
2819
2347
2820
# Default values for config file for server-global settings
2348
2821
server_defaults = { "interface": "",
2350
2823
"port": "",
2351
2824
"debug": "False",
2352
2825
"priority":
2353
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2826
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2827
":+SIGN-DSA-SHA256",
2354
2828
"servicename": "Mandos",
2355
2829
"use_dbus": "True",
2356
2830
"use_ipv6": "True",
2359
2833
"socket": "",
2360
2834
"statedir": "/var/lib/mandos",
2361
2835
"foreground": "False",
2362
}
2836
"zeroconf": "True",
2837
}
2363
2838
2364
2839
# Parse config file for server-global settings
2365
2840
server_config = configparser.SafeConfigParser(server_defaults)
2366
2841
del server_defaults
2367
server_config.read(os.path.join(options.configdir,
2368
"mandos.conf"))
2842
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2369
2843
# Convert the SafeConfigParser object to a dict
2370
2844
server_settings = server_config.defaults()
2371
2845
# Use the appropriate methods on the non-string config options
2389
2863
# Override the settings from the config file with command line
2390
2864
# options, if set.
2391
2865
for option in ("interface", "address", "port", "debug",
2392
"priority", "servicename", "configdir",
2393
"use_dbus", "use_ipv6", "debuglevel", "restore",
2394
"statedir", "socket", "foreground"):
2866
"priority", "servicename", "configdir", "use_dbus",
2867
"use_ipv6", "debuglevel", "restore", "statedir",
2868
"socket", "foreground", "zeroconf"):
2395
2869
value = getattr(options, option)
2396
2870
if value is not None:
2397
2871
server_settings[option] = value
2398
2872
del options
2399
2873
# Force all strings to be unicode
2400
2874
for option in server_settings.keys():
2401
if type(server_settings[option]) is str:
2402
server_settings[option] = unicode(server_settings[option])
2875
if isinstance(server_settings[option], bytes):
2876
server_settings[option] = (server_settings[option]
2877
.decode("utf-8"))
2403
2878
# Force all boolean options to be boolean
2404
2879
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2405
"foreground"):
2880
"foreground", "zeroconf"):
2406
2881
server_settings[option] = bool(server_settings[option])
2407
2882
# Debug implies foreground
2408
2883
if server_settings["debug"]:
2411
2886
2412
2887
##################################################################
2413
2888
2889
if (not server_settings["zeroconf"]
2890
and not (server_settings["port"]
2891
or server_settings["socket"] != "")):
2892
parser.error("Needs port or socket to work without Zeroconf")
2893
2414
2894
# For convenience
2415
2895
debug = server_settings["debug"]
2416
2896
debuglevel = server_settings["debuglevel"]
2419
2899
stored_state_path = os.path.join(server_settings["statedir"],
2420
2900
stored_state_file)
2421
2901
foreground = server_settings["foreground"]
2902
zeroconf = server_settings["zeroconf"]
2422
2903
2423
2904
if debug:
2424
2905
initlogger(debug, logging.DEBUG)
2430
2911
initlogger(debug, level)
2431
2912
2432
2913
if server_settings["servicename"] != "Mandos":
2433
syslogger.setFormatter(logging.Formatter
2434
('Mandos ({0}) [%(process)d]:'
2435
' %(levelname)s: %(message)s'
2436
.format(server_settings
2437
["servicename"])))
2914
syslogger.setFormatter(
2915
logging.Formatter('Mandos ({}) [%(process)d]:'
2916
' %(levelname)s: %(message)s'.format(
2917
server_settings["servicename"])))
2438
2918
2439
2919
# Parse config file with clients
2440
2920
client_config = configparser.SafeConfigParser(Client
2445
2925
global mandos_dbus_service
2446
2926
mandos_dbus_service = None
2447
2927
2448
tcp_server = MandosServer((server_settings["address"],
2449
server_settings["port"]),
2450
ClientHandler,
2451
interface=(server_settings["interface"]
2452
or None),
2453
use_ipv6=use_ipv6,
2454
gnutls_priority=
2455
server_settings["priority"],
2456
use_dbus=use_dbus,
2457
socketfd=(server_settings["socket"]
2458
or None))
2928
socketfd = None
2929
if server_settings["socket"] != "":
2930
socketfd = server_settings["socket"]
2931
tcp_server = MandosServer(
2932
(server_settings["address"], server_settings["port"]),
2933
ClientHandler,
2934
interface=(server_settings["interface"] or None),
2935
use_ipv6=use_ipv6,
2936
gnutls_priority=server_settings["priority"],
2937
use_dbus=use_dbus,
2938
socketfd=socketfd)
2459
2939
if not foreground:
2460
2940
pidfilename = "/run/mandos.pid"
2461
2941
if not os.path.isdir("/run/."):
2462
2942
pidfilename = "/var/run/mandos.pid"
2463
2943
pidfile = None
2464
2944
try:
2465
pidfile = open(pidfilename, "w")
2945
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2466
2946
except IOError as e:
2467
2947
logger.error("Could not open file %r", pidfilename,
2468
2948
exc_info=e)
2469
2949
2470
for name in ("_mandos", "mandos", "nobody"):
2950
for name, group in (("_mandos", "_mandos"),
2951
("mandos", "mandos"),
2952
("nobody", "nogroup")):
2471
2953
try:
2472
2954
uid = pwd.getpwnam(name).pw_uid
2473
gid = pwd.getpwnam(name).pw_gid
2955
gid = pwd.getpwnam(group).pw_gid
2474
2956
break
2475
2957
except KeyError:
2476
2958
continue
2480
2962
try:
2481
2963
os.setgid(gid)
2482
2964
os.setuid(uid)
2965
if debug:
2966
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2967
gid))
2483
2968
except OSError as error:
2969
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2970
.format(uid, gid, os.strerror(error.errno)))
2484
2971
if error.errno != errno.EPERM:
2485
2972
raise
2486
2973
2489
2976
2490
2977
# "Use a log level over 10 to enable all debugging options."
2491
2978
# - GnuTLS manual
2492
gnutls.library.functions.gnutls_global_set_log_level(11)
2979
gnutls.global_set_log_level(11)
2493
2980
2494
@gnutls.library.types.gnutls_log_func
2981
@gnutls.log_func
2495
2982
def debug_gnutls(level, string):
2496
2983
logger.debug("GnuTLS: %s", string[:-1])
2497
2984
2498
(gnutls.library.functions
2499
.gnutls_global_set_log_function(debug_gnutls))
2985
gnutls.global_set_log_function(debug_gnutls)
2500
2986
2501
2987
# Redirect stdin so all checkers get /dev/null
2502
2988
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2509
2995
# Close all input and output, do double fork, etc.
2510
2996
daemon()
2511
2997
2512
# multiprocessing will use threads, so before we use gobject we
2513
# need to inform gobject that threads will be used.
2514
gobject.threads_init()
2998
# multiprocessing will use threads, so before we use GObject we
2999
# need to inform GObject that threads will be used.
3000
GObject.threads_init()
2515
3001
2516
3002
global main_loop
2517
3003
# From the Avahi example code
2518
3004
DBusGMainLoop(set_as_default=True)
2519
main_loop = gobject.MainLoop()
3005
main_loop = GObject.MainLoop()
2520
3006
bus = dbus.SystemBus()
2521
3007
# End of Avahi example code
2522
3008
if use_dbus:
2523
3009
try:
2524
3010
bus_name = dbus.service.BusName("se.recompile.Mandos",
2525
bus, do_not_queue=True)
2526
old_bus_name = (dbus.service.BusName
2527
("se.bsnet.fukt.Mandos", bus,
2528
do_not_queue=True))
2529
except dbus.exceptions.NameExistsException as e:
3011
bus,
3012
do_not_queue=True)
3013
old_bus_name = dbus.service.BusName(
3014
"se.bsnet.fukt.Mandos", bus,
3015
do_not_queue=True)
3016
except dbus.exceptions.DBusException as e:
2530
3017
logger.error("Disabling D-Bus:", exc_info=e)
2531
3018
use_dbus = False
2532
3019
server_settings["use_dbus"] = False
2533
3020
tcp_server.use_dbus = False
2534
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2535
service = AvahiServiceToSyslog(name =
2536
server_settings["servicename"],
2537
servicetype = "_mandos._tcp",
2538
protocol = protocol, bus = bus)
2539
if server_settings["interface"]:
2540
service.interface = (if_nametoindex
2541
(str(server_settings["interface"])))
3021
if zeroconf:
3022
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3023
service = AvahiServiceToSyslog(
3024
name = server_settings["servicename"],
3025
servicetype = "_mandos._tcp",
3026
protocol = protocol,
3027
bus = bus)
3028
if server_settings["interface"]:
3029
service.interface = if_nametoindex(
3030
server_settings["interface"].encode("utf-8"))
2542
3031
2543
3032
global multiprocessing_manager
2544
3033
multiprocessing_manager = multiprocessing.Manager()
2563
3052
if server_settings["restore"]:
2564
3053
try:
2565
3054
with open(stored_state_path, "rb") as stored_state:
2566
clients_data, old_client_settings = (pickle.load
2567
(stored_state))
3055
if sys.version_info.major == 2:
3056
clients_data, old_client_settings = pickle.load(
3057
stored_state)
3058
else:
3059
bytes_clients_data, bytes_old_client_settings = (
3060
pickle.load(stored_state, encoding = "bytes"))
3061
### Fix bytes to strings
3062
## clients_data
3063
# .keys()
3064
clients_data = { (key.decode("utf-8")
3065
if isinstance(key, bytes)
3066
else key): value
3067
for key, value in
3068
bytes_clients_data.items() }
3069
del bytes_clients_data
3070
for key in clients_data:
3071
value = { (k.decode("utf-8")
3072
if isinstance(k, bytes) else k): v
3073
for k, v in
3074
clients_data[key].items() }
3075
clients_data[key] = value
3076
# .client_structure
3077
value["client_structure"] = [
3078
(s.decode("utf-8")
3079
if isinstance(s, bytes)
3080
else s) for s in
3081
value["client_structure"] ]
3082
# .name & .host
3083
for k in ("name", "host"):
3084
if isinstance(value[k], bytes):
3085
value[k] = value[k].decode("utf-8")
3086
## old_client_settings
3087
# .keys()
3088
old_client_settings = {
3089
(key.decode("utf-8")
3090
if isinstance(key, bytes)
3091
else key): value
3092
for key, value in
3093
bytes_old_client_settings.items() }
3094
del bytes_old_client_settings
3095
# .host
3096
for value in old_client_settings.values():
3097
if isinstance(value["host"], bytes):
3098
value["host"] = (value["host"]
3099
.decode("utf-8"))
2568
3100
os.remove(stored_state_path)
2569
3101
except IOError as e:
2570
3102
if e.errno == errno.ENOENT:
2571
logger.warning("Could not load persistent state: {0}"
2572
.format(os.strerror(e.errno)))
3103
logger.warning("Could not load persistent state:"
3104
" {}".format(os.strerror(e.errno)))
2573
3105
else:
2574
3106
logger.critical("Could not load persistent state:",
2575
3107
exc_info=e)
2576
3108
raise
2577
3109
except EOFError as e:
2578
3110
logger.warning("Could not load persistent state: "
2579
"EOFError:", exc_info=e)
3111
"EOFError:",
3112
exc_info=e)
2580
3113
2581
3114
with PGPEngine() as pgp:
2582
for client_name, client in clients_data.iteritems():
3115
for client_name, client in clients_data.items():
2583
3116
# Skip removed clients
2584
3117
if client_name not in client_settings:
2585
3118
continue
2594
3127
# For each value in new config, check if it
2595
3128
# differs from the old config value (Except for
2596
3129
# the "secret" attribute)
2597
if (name != "secret" and
2598
value != old_client_settings[client_name]
2599
[name]):
3130
if (name != "secret"
3131
and (value !=
3132
old_client_settings[client_name][name])):
2600
3133
client[name] = value
2601
3134
except KeyError:
2602
3135
pass
2603
3136
2604
3137
# Clients who has passed its expire date can still be
2605
# enabled if its last checker was successful. Clients
3138
# enabled if its last checker was successful. A Client
2606
3139
# whose checker succeeded before we stored its state is
2607
3140
# assumed to have successfully run all checkers during
2608
3141
# downtime.
2610
3143
if datetime.datetime.utcnow() >= client["expires"]:
2611
3144
if not client["last_checked_ok"]:
2612
3145
logger.warning(
2613
"disabling client {0} - Client never "
2614
"performed a successful checker"
2615
.format(client_name))
3146
"disabling client {} - Client never "
3147
"performed a successful checker".format(
3148
client_name))
2616
3149
client["enabled"] = False
2617
3150
elif client["last_checker_status"] != 0:
2618
3151
logger.warning(
2619
"disabling client {0} - Client "
2620
"last checker failed with error code {1}"
2621
.format(client_name,
2622
client["last_checker_status"]))
3152
"disabling client {} - Client last"
3153
" checker failed with error code"
3154
" {}".format(
3155
client_name,
3156
client["last_checker_status"]))
2623
3157
client["enabled"] = False
2624
3158
else:
2625
client["expires"] = (datetime.datetime
2626
.utcnow()
2627
+ client["timeout"])
3159
client["expires"] = (
3160
datetime.datetime.utcnow()
3161
+ client["timeout"])
2628
3162
logger.debug("Last checker succeeded,"
2629
" keeping {0} enabled"
2630
.format(client_name))
3163
" keeping {} enabled".format(
3164
client_name))
2631
3165
try:
2632
client["secret"] = (
2633
pgp.decrypt(client["encrypted_secret"],
2634
client_settings[client_name]
2635
["secret"]))
3166
client["secret"] = pgp.decrypt(
3167
client["encrypted_secret"],
3168
client_settings[client_name]["secret"])
2636
3169
except PGPError:
2637
3170
# If decryption fails, we use secret from new settings
2638
logger.debug("Failed to decrypt {0} old secret"
2639
.format(client_name))
2640
client["secret"] = (
2641
client_settings[client_name]["secret"])
3171
logger.debug("Failed to decrypt {} old secret".format(
3172
client_name))
3173
client["secret"] = (client_settings[client_name]
3174
["secret"])
2642
3175
2643
3176
# Add/remove clients based on new changes made to config
2644
3177
for client_name in (set(old_client_settings)
2649
3182
clients_data[client_name] = client_settings[client_name]
2650
3183
2651
3184
# Create all client objects
2652
for client_name, client in clients_data.iteritems():
3185
for client_name, client in clients_data.items():
2653
3186
tcp_server.clients[client_name] = client_class(
2654
name = client_name, settings = client,
3187
name = client_name,
3188
settings = client,
2655
3189
server_settings = server_settings)
2656
3190
2657
3191
if not tcp_server.clients:
2659
3193
2660
3194
if not foreground:
2661
3195
if pidfile is not None:
3196
pid = os.getpid()
2662
3197
try:
2663
3198
with pidfile:
2664
pid = os.getpid()
2665
pidfile.write(str(pid) + "\n".encode("utf-8"))
3199
print(pid, file=pidfile)
2666
3200
except IOError:
2667
3201
logger.error("Could not write to file %r with PID %d",
2668
3202
pidfilename, pid)
2673
3207
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2674
3208
2675
3209
if use_dbus:
2676
@alternate_dbus_interfaces({"se.recompile.Mandos":
2677
"se.bsnet.fukt.Mandos"})
2678
class MandosDBusService(DBusObjectWithProperties):
3210
3211
@alternate_dbus_interfaces(
3212
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3213
class MandosDBusService(DBusObjectWithObjectManager):
2679
3214
"""A D-Bus proxy object"""
3215
2680
3216
def __init__(self):
2681
3217
dbus.service.Object.__init__(self, bus, "/")
3218
2682
3219
_interface = "se.recompile.Mandos"
2683
3220
2684
@dbus_interface_annotations(_interface)
2685
def _foo(self):
2686
return { "org.freedesktop.DBus.Property"
2687
".EmitsChangedSignal":
2688
"false"}
2689
2690
3221
@dbus.service.signal(_interface, signature="o")
2691
3222
def ClientAdded(self, objpath):
2692
3223
"D-Bus signal"
2697
3228
"D-Bus signal"
2698
3229
pass
2699
3230
3231
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3232
"true"})
2700
3233
@dbus.service.signal(_interface, signature="os")
2701
3234
def ClientRemoved(self, objpath, name):
2702
3235
"D-Bus signal"
2703
3236
pass
2704
3237
3238
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3239
"true"})
2705
3240
@dbus.service.method(_interface, out_signature="ao")
2706
3241
def GetAllClients(self):
2707
3242
"D-Bus method"
2708
return dbus.Array(c.dbus_object_path
2709
for c in
2710
tcp_server.clients.itervalues())
3243
return dbus.Array(c.dbus_object_path for c in
3244
tcp_server.clients.values())
2711
3245
3246
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3247
"true"})
2712
3248
@dbus.service.method(_interface,
2713
3249
out_signature="a{oa{sv}}")
2714
3250
def GetAllClientsWithProperties(self):
2715
3251
"D-Bus method"
2716
3252
return dbus.Dictionary(
2717
((c.dbus_object_path, c.GetAll(""))
2718
for c in tcp_server.clients.itervalues()),
3253
{ c.dbus_object_path: c.GetAll(
3254
"se.recompile.Mandos.Client")
3255
for c in tcp_server.clients.values() },
2719
3256
signature="oa{sv}")
2720
3257
2721
3258
@dbus.service.method(_interface, in_signature="o")
2722
3259
def RemoveClient(self, object_path):
2723
3260
"D-Bus method"
2724
for c in tcp_server.clients.itervalues():
3261
for c in tcp_server.clients.values():
2725
3262
if c.dbus_object_path == object_path:
2726
3263
del tcp_server.clients[c.name]
2727
3264
c.remove_from_connection()
2728
# Don't signal anything except ClientRemoved
3265
# Don't signal the disabling
2729
3266
c.disable(quiet=True)
2730
# Emit D-Bus signal
2731
self.ClientRemoved(object_path, c.name)
3267
# Emit D-Bus signal for removal
3268
self.client_removed_signal(c)
2732
3269
return
2733
3270
raise KeyError(object_path)
2734
3271
2735
3272
del _interface
3273
3274
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3275
out_signature = "a{oa{sa{sv}}}")
3276
def GetManagedObjects(self):
3277
"""D-Bus method"""
3278
return dbus.Dictionary(
3279
{ client.dbus_object_path:
3280
dbus.Dictionary(
3281
{ interface: client.GetAll(interface)
3282
for interface in
3283
client._get_all_interface_names()})
3284
for client in tcp_server.clients.values()})
3285
3286
def client_added_signal(self, client):
3287
"""Send the new standard signal and the old signal"""
3288
if use_dbus:
3289
# New standard signal
3290
self.InterfacesAdded(
3291
client.dbus_object_path,
3292
dbus.Dictionary(
3293
{ interface: client.GetAll(interface)
3294
for interface in
3295
client._get_all_interface_names()}))
3296
# Old signal
3297
self.ClientAdded(client.dbus_object_path)
3298
3299
def client_removed_signal(self, client):
3300
"""Send the new standard signal and the old signal"""
3301
if use_dbus:
3302
# New standard signal
3303
self.InterfacesRemoved(
3304
client.dbus_object_path,
3305
client._get_all_interface_names())
3306
# Old signal
3307
self.ClientRemoved(client.dbus_object_path,
3308
client.name)
2736
3309
2737
3310
mandos_dbus_service = MandosDBusService()
2738
3311
2739
3312
def cleanup():
2740
3313
"Cleanup function; run on exit"
2741
service.cleanup()
3314
if zeroconf:
3315
service.cleanup()
2742
3316
2743
3317
multiprocessing.active_children()
2744
3318
wnull.close()
2750
3324
# removed/edited, old secret will thus be unrecovable.
2751
3325
clients = {}
2752
3326
with PGPEngine() as pgp:
2753
for client in tcp_server.clients.itervalues():
3327
for client in tcp_server.clients.values():
2754
3328
key = client_settings[client.name]["secret"]
2755
3329
client.encrypted_secret = pgp.encrypt(client.secret,
2756
3330
key)
2758
3332
2759
3333
# A list of attributes that can not be pickled
2760
3334
# + secret.
2761
exclude = set(("bus", "changedstate", "secret",
2762
"checker", "server_settings"))
2763
for name, typ in (inspect.getmembers
2764
(dbus.service.Object)):
3335
exclude = { "bus", "changedstate", "secret",
3336
"checker", "server_settings" }
3337
for name, typ in inspect.getmembers(dbus.service
3338
.Object):
2765
3339
exclude.add(name)
2766
3340
2767
3341
client_dict["encrypted_secret"] = (client
2774
3348
del client_settings[client.name]["secret"]
2775
3349
2776
3350
try:
2777
with (tempfile.NamedTemporaryFile
2778
(mode='wb', suffix=".pickle", prefix='clients-',
2779
dir=os.path.dirname(stored_state_path),
2780
delete=False)) as stored_state:
2781
pickle.dump((clients, client_settings), stored_state)
2782
tempname=stored_state.name
3351
with tempfile.NamedTemporaryFile(
3352
mode='wb',
3353
suffix=".pickle",
3354
prefix='clients-',
3355
dir=os.path.dirname(stored_state_path),
3356
delete=False) as stored_state:
3357
pickle.dump((clients, client_settings), stored_state,
3358
protocol = 2)
3359
tempname = stored_state.name
2783
3360
os.rename(tempname, stored_state_path)
2784
3361
except (IOError, OSError) as e:
2785
3362
if not debug:
2788
3365
except NameError:
2789
3366
pass
2790
3367
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2791
logger.warning("Could not save persistent state: {0}"
3368
logger.warning("Could not save persistent state: {}"
2792
3369
.format(os.strerror(e.errno)))
2793
3370
else:
2794
3371
logger.warning("Could not save persistent state:",
2800
3377
name, client = tcp_server.clients.popitem()
2801
3378
if use_dbus:
2802
3379
client.remove_from_connection()
2803
# Don't signal anything except ClientRemoved
3380
# Don't signal the disabling
2804
3381
client.disable(quiet=True)
3382
# Emit D-Bus signal for removal
2805
3383
if use_dbus:
2806
# Emit D-Bus signal
2807
mandos_dbus_service.ClientRemoved(client
2808
.dbus_object_path,
2809
client.name)
3384
mandos_dbus_service.client_removed_signal(client)
2810
3385
client_settings.clear()
2811
3386
2812
3387
atexit.register(cleanup)
2813
3388
2814
for client in tcp_server.clients.itervalues():
3389
for client in tcp_server.clients.values():
2815
3390
if use_dbus:
2816
# Emit D-Bus signal
2817
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3391
# Emit D-Bus signal for adding
3392
mandos_dbus_service.client_added_signal(client)
2818
3393
# Need to initiate checking of clients
2819
3394
if client.enabled:
2820
3395
client.init_checker()
2823
3398
tcp_server.server_activate()
2824
3399
2825
3400
# Find out what port we got
2826
service.port = tcp_server.socket.getsockname()[1]
3401
if zeroconf:
3402
service.port = tcp_server.socket.getsockname()[1]
2827
3403
if use_ipv6:
2828
3404
logger.info("Now listening on address %r, port %d,"
2829
3405
" flowinfo %d, scope_id %d",
2835
3411
#service.interface = tcp_server.socket.getsockname()[3]
2836
3412
2837
3413
try:
2838
# From the Avahi example code
2839
try:
2840
service.activate()
2841
except dbus.exceptions.DBusException as error:
2842
logger.critical("D-Bus Exception", exc_info=error)
2843
cleanup()
2844
sys.exit(1)
2845
# End of Avahi example code
3414
if zeroconf:
3415
# From the Avahi example code
3416
try:
3417
service.activate()
3418
except dbus.exceptions.DBusException as error:
3419
logger.critical("D-Bus Exception", exc_info=error)
3420
cleanup()
3421
sys.exit(1)
3422
# End of Avahi example code
2846
3423
2847
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3424
GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,
2848
3425
lambda *args, **kwargs:
2849
3426
(tcp_server.handle_request
2850
3427
(*args[2:], **kwargs) or True))
2863
3440
# Must run before the D-Bus bus name gets deregistered
2864
3441
cleanup()
2865
3442
3443
2866
3444
if __name__ == '__main__':
2867
3445
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0