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- Committer: Teddy Hogeborn
- Date: 2013-10-26 19:05:21 UTC
- Revision ID: teddy@recompile.se-20131026190521-giagilisbyciox2h
Fall back to /var/run for pidfile if /run is not a directory.
This is for old (possibly non-Debian) systems which have not migrated
from /var/run to /run yet.
* init.d-mandos (PIDFILE): Fall back to /var/run/mandos.pid if /run is
not a directory.
* mandos (pidfilename): - '' -
* mandos.xml (FILES): Document fallback to /var/run/mandos.pid if /run
is not a directory.
Reported-by: Nathanael D. Noblet <nathanael@gnat.ca>
Suggested-by: Nathanael D. Noblet <nathanael@gnat.ca>
This is for old (possibly non-Debian) systems which have not migrated
from /var/run to /run yet.
* init.d-mandos (PIDFILE): Fall back to /var/run/mandos.pid if /run is
not a directory.
* mandos (pidfilename): - '' -
* mandos.xml (FILES): Document fallback to /var/run/mandos.pid if /run
is not a directory.
Reported-by: Nathanael D. Noblet <nathanael@gnat.ca>
Suggested-by: Nathanael D. Noblet <nathanael@gnat.ca>
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
14
# Copyright © 2008-2013 Teddy Hogeborn
15
# Copyright © 2008-2013 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
37
from future_builtins import *
41
38
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
39
import SocketServer as socketserver
46
40
import socket
47
41
import argparse
48
42
import datetime
49
43
import errno
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
44
import gnutls.crypto
45
import gnutls.connection
46
import gnutls.errors
47
import gnutls.library.functions
48
import gnutls.library.constants
49
import gnutls.library.types
50
import ConfigParser as configparser
54
51
import sys
55
52
import re
56
53
import os
65
62
import struct
66
63
import fcntl
67
64
import functools
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
65
import cPickle as pickle
72
66
import multiprocessing
73
67
import types
74
68
import binascii
75
69
import tempfile
76
70
import itertools
77
71
import collections
78
import codecs
79
72
80
73
import dbus
81
74
import dbus.service
82
try:
83
from gi.repository import GObject
84
except ImportError:
85
import gobject as GObject
75
import gobject
76
import avahi
86
77
from dbus.mainloop.glib import DBusGMainLoop
87
78
import ctypes
88
79
import ctypes.util
97
88
except ImportError:
98
89
SO_BINDTODEVICE = None
99
90
100
if sys.version_info.major == 2:
101
str = unicode
102
103
version = "1.7.5"
91
version = "1.6.2"
104
92
stored_state_file = "clients.pickle"
105
93
106
94
logger = logging.getLogger()
107
syslogger = None
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
108
98
109
99
try:
110
if_nametoindex = ctypes.cdll.LoadLibrary(
111
ctypes.util.find_library("c")).if_nametoindex
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
112
103
except (OSError, AttributeError):
113
114
104
def if_nametoindex(interface):
115
105
"Get an interface index the hard way, i.e. using fcntl()"
116
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
117
107
with contextlib.closing(socket.socket()) as s:
118
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
119
struct.pack(b"16s16x", interface))
120
interface_index = struct.unpack("I", ifreq[16:20])[0]
109
struct.pack(str("16s16x"),
110
interface))
111
interface_index = struct.unpack(str("I"),
112
ifreq[16:20])[0]
121
113
return interface_index
122
114
123
115
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
140
116
def initlogger(debug, level=logging.WARNING):
141
117
"""init logger and add loglevel"""
142
118
143
global syslogger
144
syslogger = (logging.handlers.SysLogHandler(
145
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
146
address = "/dev/log"))
147
119
syslogger.setFormatter(logging.Formatter
148
120
('Mandos [%(process)d]: %(levelname)s:'
149
121
' %(message)s'))
166
138
167
139
class PGPEngine(object):
168
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
169
170
141
def __init__(self):
171
142
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
183
143
self.gnupgargs = ['--batch',
184
'--homedir', self.tempdir,
144
'--home', self.tempdir,
185
145
'--force-mdc',
186
146
'--quiet',
187
147
'--no-use-agent']
222
182
223
183
def encrypt(self, data, password):
224
184
passphrase = self.password_encode(password)
225
with tempfile.NamedTemporaryFile(
226
dir=self.tempdir) as passfile:
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
186
) as passfile:
227
187
passfile.write(passphrase)
228
188
passfile.flush()
229
proc = subprocess.Popen([self.gpg, '--symmetric',
189
proc = subprocess.Popen(['gpg', '--symmetric',
230
190
'--passphrase-file',
231
191
passfile.name]
232
192
+ self.gnupgargs,
240
200
241
201
def decrypt(self, data, password):
242
202
passphrase = self.password_encode(password)
243
with tempfile.NamedTemporaryFile(
244
dir = self.tempdir) as passfile:
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
204
) as passfile:
245
205
passfile.write(passphrase)
246
206
passfile.flush()
247
proc = subprocess.Popen([self.gpg, '--decrypt',
207
proc = subprocess.Popen(['gpg', '--decrypt',
248
208
'--passphrase-file',
249
209
passfile.name]
250
210
+ self.gnupgargs,
251
211
stdin = subprocess.PIPE,
252
212
stdout = subprocess.PIPE,
253
213
stderr = subprocess.PIPE)
254
decrypted_plaintext, err = proc.communicate(input = data)
214
decrypted_plaintext, err = proc.communicate(input
215
= data)
255
216
if proc.returncode != 0:
256
217
raise PGPError(err)
257
218
return decrypted_plaintext
258
219
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()
283
220
284
221
class AvahiError(Exception):
285
222
def __init__(self, value, *args, **kwargs):
286
223
self.value = value
287
return super(AvahiError, self).__init__(value, *args,
288
**kwargs)
289
224
super(AvahiError, self).__init__(value, *args, **kwargs)
225
def __unicode__(self):
226
return unicode(repr(self.value))
290
227
291
228
class AvahiServiceError(AvahiError):
292
229
pass
293
230
294
295
231
class AvahiGroupError(AvahiError):
296
232
pass
297
233
317
253
bus: dbus.SystemBus()
318
254
"""
319
255
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):
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):
331
260
self.interface = interface
332
261
self.name = name
333
262
self.type = servicetype
343
272
self.bus = bus
344
273
self.entry_group_state_changed_match = None
345
274
346
def rename(self, remove=True):
275
def rename(self):
347
276
"""Derived from the Avahi example code"""
348
277
if self.rename_count >= self.max_renames:
349
278
logger.critical("No suitable Zeroconf service name found"
350
279
" after %i retries, exiting.",
351
280
self.rename_count)
352
281
raise AvahiServiceError("Too many renames")
353
self.name = str(
354
self.server.GetAlternativeServiceName(self.name))
355
self.rename_count += 1
282
self.name = unicode(self.server
283
.GetAlternativeServiceName(self.name))
356
284
logger.info("Changing Zeroconf service name to %r ...",
357
285
self.name)
358
if remove:
359
self.remove()
286
self.remove()
360
287
try:
361
288
self.add()
362
289
except dbus.exceptions.DBusException as error:
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)
290
logger.critical("D-Bus Exception", exc_info=error)
291
self.cleanup()
292
os._exit(1)
293
self.rename_count += 1
371
294
372
295
def remove(self):
373
296
"""Derived from the Avahi example code"""
411
334
self.rename()
412
335
elif state == avahi.ENTRY_GROUP_FAILURE:
413
336
logger.critical("Avahi: Error in group state changed %s",
414
str(error))
415
raise AvahiGroupError("State changed: {!s}".format(error))
337
unicode(error))
338
raise AvahiGroupError("State changed: {0!s}"
339
.format(error))
416
340
417
341
def cleanup(self):
418
342
"""Derived from the Avahi example code"""
428
352
def server_state_changed(self, state, error=None):
429
353
"""Derived from the Avahi example code"""
430
354
logger.debug("Avahi server state change: %i", state)
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
}
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" }
437
362
if state in bad_states:
438
363
if bad_states[state] is not None:
439
364
if error is None:
442
367
logger.error(bad_states[state] + ": %r", error)
443
368
self.cleanup()
444
369
elif state == avahi.SERVER_RUNNING:
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)
370
self.add()
457
371
else:
458
372
if error is None:
459
373
logger.debug("Unknown state: %r", state)
469
383
follow_name_owner_changes=True),
470
384
avahi.DBUS_INTERFACE_SERVER)
471
385
self.server.connect_to_signal("StateChanged",
472
self.server_state_changed)
386
self.server_state_changed)
473
387
self.server_state_changed(self.server.GetState())
474
388
475
389
476
390
class AvahiServiceToSyslog(AvahiService):
477
def rename(self, *args, **kwargs):
391
def rename(self):
478
392
"""Add the new name to the syslog messages"""
479
ret = AvahiService.rename(self, *args, **kwargs)
480
syslogger.setFormatter(logging.Formatter(
481
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
482
.format(self.name)))
393
ret = AvahiService.rename(self)
394
syslogger.setFormatter(logging.Formatter
395
('Mandos ({0}) [%(process)d]:'
396
' %(levelname)s: %(message)s'
397
.format(self.name)))
483
398
return ret
484
399
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()
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
749
407
750
408
class Client(object):
751
409
"""A representation of a client host served by this server.
757
415
checker: subprocess.Popen(); a running checker process used
758
416
to see if the client lives.
759
417
'None' if no process is running.
760
checker_callback_tag: a GObject event source tag, or None
418
checker_callback_tag: a gobject event source tag, or None
761
419
checker_command: string; External command which is run to check
762
420
if client lives. %() expansions are done at
763
421
runtime with vars(self) as dict, so that for
764
422
instance %(name)s can be used in the command.
765
checker_initiator_tag: a GObject event source tag, or None
423
checker_initiator_tag: a gobject event source tag, or None
766
424
created: datetime.datetime(); (UTC) object creation
767
425
client_structure: Object describing what attributes a client has
768
426
and is used for storing the client at exit
769
427
current_checker_command: string; current running checker_command
770
disable_initiator_tag: a GObject event source tag, or None
428
disable_initiator_tag: a gobject event source tag, or None
771
429
enabled: bool()
772
430
fingerprint: string (40 or 32 hexadecimal digits); used to
773
431
uniquely identify the client
778
436
last_checker_status: integer between 0 and 255 reflecting exit
779
437
status of last checker. -1 reflects crashed
780
438
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
783
439
last_enabled: datetime.datetime(); (UTC) or None
784
440
name: string; from the config file, used in log messages and
785
441
D-Bus identifiers
798
454
"fingerprint", "host", "interval",
799
455
"last_approval_request", "last_checked_ok",
800
456
"last_enabled", "name", "timeout")
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
}
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)
812
482
813
483
@staticmethod
814
484
def config_parser(config):
830
500
client["enabled"] = config.getboolean(client_name,
831
501
"enabled")
832
502
833
# Uppercase and remove spaces from fingerprint for later
834
# comparison purposes with return value from the
835
# fingerprint() function
836
503
client["fingerprint"] = (section["fingerprint"].upper()
837
504
.replace(" ", ""))
838
505
if "secret" in section:
839
client["secret"] = codecs.decode(section["secret"]
840
.encode("utf-8"),
841
"base64")
506
client["secret"] = section["secret"].decode("base64")
842
507
elif "secfile" in section:
843
508
with open(os.path.expanduser(os.path.expandvars
844
509
(section["secfile"])),
845
510
"rb") as secfile:
846
511
client["secret"] = secfile.read()
847
512
else:
848
raise TypeError("No secret or secfile for section {}"
513
raise TypeError("No secret or secfile for section {0}"
849
514
.format(section))
850
515
client["timeout"] = string_to_delta(section["timeout"])
851
516
client["extended_timeout"] = string_to_delta(
868
533
server_settings = {}
869
534
self.server_settings = server_settings
870
535
# adding all client settings
871
for setting, value in settings.items():
536
for setting, value in settings.iteritems():
872
537
setattr(self, setting, value)
873
538
874
539
if self.enabled:
882
547
self.expires = None
883
548
884
549
logger.debug("Creating client %r", self.name)
550
# Uppercase and remove spaces from fingerprint for later
551
# comparison purposes with return value from the fingerprint()
552
# function
885
553
logger.debug(" Fingerprint: %s", self.fingerprint)
886
554
self.created = settings.get("created",
887
555
datetime.datetime.utcnow())
894
562
self.current_checker_command = None
895
563
self.approved = None
896
564
self.approvals_pending = 0
897
self.changedstate = multiprocessing_manager.Condition(
898
multiprocessing_manager.Lock())
899
self.client_structure = [attr
900
for attr in self.__dict__.keys()
565
self.changedstate = (multiprocessing_manager
566
.Condition(multiprocessing_manager
567
.Lock()))
568
self.client_structure = [attr for attr in
569
self.__dict__.iterkeys()
901
570
if not attr.startswith("_")]
902
571
self.client_structure.append("client_structure")
903
572
904
for name, t in inspect.getmembers(
905
type(self), lambda obj: isinstance(obj, property)):
573
for name, t in inspect.getmembers(type(self),
574
lambda obj:
575
isinstance(obj,
576
property)):
906
577
if not name.startswith("_"):
907
578
self.client_structure.append(name)
908
579
929
600
if not quiet:
930
601
logger.info("Disabling client %s", self.name)
931
602
if getattr(self, "disable_initiator_tag", None) is not None:
932
GObject.source_remove(self.disable_initiator_tag)
603
gobject.source_remove(self.disable_initiator_tag)
933
604
self.disable_initiator_tag = None
934
605
self.expires = None
935
606
if getattr(self, "checker_initiator_tag", None) is not None:
936
GObject.source_remove(self.checker_initiator_tag)
607
gobject.source_remove(self.checker_initiator_tag)
937
608
self.checker_initiator_tag = None
938
609
self.stop_checker()
939
610
self.enabled = False
940
611
if not quiet:
941
612
self.send_changedstate()
942
# Do not run this again if called by a GObject.timeout_add
613
# Do not run this again if called by a gobject.timeout_add
943
614
return False
944
615
945
616
def __del__(self):
949
620
# Schedule a new checker to be started an 'interval' from now,
950
621
# and every interval from then on.
951
622
if self.checker_initiator_tag is not None:
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)
623
gobject.source_remove(self.checker_initiator_tag)
624
self.checker_initiator_tag = (gobject.timeout_add
625
(self.interval_milliseconds(),
626
self.start_checker))
956
627
# Schedule a disable() when 'timeout' has passed
957
628
if self.disable_initiator_tag is not None:
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)
629
gobject.source_remove(self.disable_initiator_tag)
630
self.disable_initiator_tag = (gobject.timeout_add
631
(self.timeout_milliseconds(),
632
self.disable))
961
633
# Also start a new checker *right now*.
962
634
self.start_checker()
963
635
964
def checker_callback(self, source, condition, connection,
965
command):
636
def checker_callback(self, pid, condition, command):
966
637
"""The checker has completed, so take appropriate actions."""
967
638
self.checker_callback_tag = None
968
639
self.checker = None
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
640
if os.WIFEXITED(condition):
641
self.last_checker_status = os.WEXITSTATUS(condition)
976
642
if self.last_checker_status == 0:
977
643
logger.info("Checker for %(name)s succeeded",
978
644
vars(self))
979
645
self.checked_ok()
980
646
else:
981
logger.info("Checker for %(name)s failed", vars(self))
647
logger.info("Checker for %(name)s failed",
648
vars(self))
982
649
else:
983
650
self.last_checker_status = -1
984
self.last_checker_signal = -returncode
985
651
logger.warning("Checker for %(name)s crashed?",
986
652
vars(self))
987
return False
988
653
989
654
def checked_ok(self):
990
655
"""Assert that the client has been seen, alive and well."""
991
656
self.last_checked_ok = datetime.datetime.utcnow()
992
657
self.last_checker_status = 0
993
self.last_checker_signal = None
994
658
self.bump_timeout()
995
659
996
660
def bump_timeout(self, timeout=None):
998
662
if timeout is None:
999
663
timeout = self.timeout
1000
664
if self.disable_initiator_tag is not None:
1001
GObject.source_remove(self.disable_initiator_tag)
665
gobject.source_remove(self.disable_initiator_tag)
1002
666
self.disable_initiator_tag = None
1003
667
if getattr(self, "enabled", False):
1004
self.disable_initiator_tag = GObject.timeout_add(
1005
int(timeout.total_seconds() * 1000), self.disable)
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
1006
671
self.expires = datetime.datetime.utcnow() + timeout
1007
672
1008
673
def need_approval(self):
1022
687
# than 'timeout' for the client to be disabled, which is as it
1023
688
# should be.
1024
689
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
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, OSError) as error:
694
if (isinstance(error, OSError)
695
and error.errno != errno.ECHILD):
696
raise error
697
else:
698
if pid:
699
logger.warning("Checker was a zombie")
700
gobject.source_remove(self.checker_callback_tag)
701
self.checker_callback(pid, status,
702
self.current_checker_command)
1029
703
# Start a new checker if needed
1030
704
if self.checker is None:
1031
705
# Escape attributes for the shell
1032
escaped_attrs = {
1033
attr: re.escape(str(getattr(self, attr)))
1034
for attr in self.runtime_expansions }
706
escaped_attrs = dict(
707
(attr, re.escape(unicode(getattr(self, attr))))
708
for attr in
709
self.runtime_expansions)
1035
710
try:
1036
711
command = self.checker_command % escaped_attrs
1037
712
except TypeError as error:
1038
713
logger.error('Could not format string "%s"',
1039
self.checker_command,
714
self.checker_command, exc_info=error)
715
return True # Try again later
716
self.current_checker_command = command
717
try:
718
logger.info("Starting checker %r for %s",
719
command, self.name)
720
# We don't need to redirect stdout and stderr, since
721
# in normal mode, that is already done by daemon(),
722
# and in debug mode we don't want to. (Stdin is
723
# always replaced by /dev/null.)
724
# The exception is when not debugging but nevertheless
725
# running in the foreground; use the previously
726
# created wnull.
727
popen_args = {}
728
if (not self.server_settings["debug"]
729
and self.server_settings["foreground"]):
730
popen_args.update({"stdout": wnull,
731
"stderr": wnull })
732
self.checker = subprocess.Popen(command,
733
close_fds=True,
734
shell=True, cwd="/",
735
**popen_args)
736
except OSError as error:
737
logger.error("Failed to start subprocess",
1040
738
exc_info=error)
1041
return True # Try again later
1042
self.current_checker_command = command
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
739
return True
740
self.checker_callback_tag = (gobject.child_watch_add
741
(self.checker.pid,
742
self.checker_callback,
743
data=command))
744
# The checker may have completed before the gobject
745
# watch was added. Check for this.
746
try:
747
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
748
except OSError as error:
749
if error.errno == errno.ECHILD:
750
# This should never happen
751
logger.error("Child process vanished",
752
exc_info=error)
753
return True
754
raise
755
if pid:
756
gobject.source_remove(self.checker_callback_tag)
757
self.checker_callback(pid, status, command)
758
# Re-run this periodically if run by gobject.timeout_add
1069
759
return True
1070
760
1071
761
def stop_checker(self):
1072
762
"""Force the checker process, if any, to stop."""
1073
763
if self.checker_callback_tag:
1074
GObject.source_remove(self.checker_callback_tag)
764
gobject.source_remove(self.checker_callback_tag)
1075
765
self.checker_callback_tag = None
1076
766
if getattr(self, "checker", None) is None:
1077
767
return
1078
768
logger.debug("Stopping checker for %(name)s", vars(self))
1079
self.checker.terminate()
769
try:
770
self.checker.terminate()
771
#time.sleep(0.5)
772
#if self.checker.poll() is None:
773
# self.checker.kill()
774
except OSError as error:
775
if error.errno != errno.ESRCH: # No such process
776
raise
1080
777
self.checker = None
1081
778
1082
779
1083
def dbus_service_property(dbus_interface,
1084
signature="v",
1085
access="readwrite",
1086
byte_arrays=False):
780
def dbus_service_property(dbus_interface, signature="v",
781
access="readwrite", byte_arrays=False):
1087
782
"""Decorators for marking methods of a DBusObjectWithProperties to
1088
783
become properties on the D-Bus.
1089
784
1098
793
# "Set" method, so we fail early here:
1099
794
if byte_arrays and signature != "ay":
1100
795
raise ValueError("Byte arrays not supported for non-'ay'"
1101
" signature {!r}".format(signature))
1102
796
" signature {0!r}".format(signature))
1103
797
def decorator(func):
1104
798
func._dbus_is_property = True
1105
799
func._dbus_interface = dbus_interface
1110
804
func._dbus_name = func._dbus_name[:-14]
1111
805
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1112
806
return func
1113
1114
807
return decorator
1115
808
1116
809
1125
818
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1126
819
"false"}
1127
820
"""
1128
1129
821
def decorator(func):
1130
822
func._dbus_is_interface = True
1131
823
func._dbus_interface = dbus_interface
1132
824
func._dbus_name = dbus_interface
1133
825
return func
1134
1135
826
return decorator
1136
827
1137
828
1139
830
"""Decorator to annotate D-Bus methods, signals or properties
1140
831
Usage:
1141
832
1142
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1143
"org.freedesktop.DBus.Property."
1144
"EmitsChangedSignal": "false"})
1145
833
@dbus_service_property("org.example.Interface", signature="b",
1146
834
access="r")
835
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
836
"org.freedesktop.DBus.Property."
837
"EmitsChangedSignal": "false"})
1147
838
def Property_dbus_property(self):
1148
839
return dbus.Boolean(False)
1149
1150
See also the DBusObjectWithAnnotations class.
1151
840
"""
1152
1153
841
def decorator(func):
1154
842
func._dbus_annotations = annotations
1155
843
return func
1156
1157
844
return decorator
1158
845
1159
846
1160
847
class DBusPropertyException(dbus.exceptions.DBusException):
1161
848
"""A base class for D-Bus property-related exceptions
1162
849
"""
1163
pass
850
def __unicode__(self):
851
return unicode(str(self))
1164
852
1165
853
1166
854
class DBusPropertyAccessException(DBusPropertyException):
1175
863
pass
1176
864
1177
865
1178
class DBusObjectWithAnnotations(dbus.service.Object):
1179
"""A D-Bus object with annotations.
866
class DBusObjectWithProperties(dbus.service.Object):
867
"""A D-Bus object with properties.
1180
868
1181
Classes inheriting from this can use the dbus_annotations
1182
decorator to add annotations to methods or signals.
869
Classes inheriting from this can use the dbus_service_property
870
decorator to expose methods as D-Bus properties. It exposes the
871
standard Get(), Set(), and GetAll() methods on the D-Bus.
1183
872
"""
1184
873
1185
874
@staticmethod
1189
878
If called like _is_dbus_thing("method") it returns a function
1190
879
suitable for use as predicate to inspect.getmembers().
1191
880
"""
1192
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
881
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1193
882
False)
1194
883
1195
884
def _get_all_dbus_things(self, thing):
1196
885
"""Returns a generator of (name, attribute) pairs
1197
886
"""
1198
return ((getattr(athing.__get__(self), "_dbus_name", name),
887
return ((getattr(athing.__get__(self), "_dbus_name",
888
name),
1199
889
athing.__get__(self))
1200
890
for cls in self.__class__.__mro__
1201
891
for name, athing in
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
"""
892
inspect.getmembers(cls,
893
self._is_dbus_thing(thing)))
1274
894
1275
895
def _get_dbus_property(self, interface_name, property_name):
1276
896
"""Returns a bound method if one exists which is a D-Bus
1277
897
property with the specified name and interface.
1278
898
"""
1279
for cls in self.__class__.__mro__:
1280
for name, value in inspect.getmembers(
1281
cls, self._is_dbus_thing("property")):
899
for cls in self.__class__.__mro__:
900
for name, value in (inspect.getmembers
901
(cls,
902
self._is_dbus_thing("property"))):
1282
903
if (value._dbus_name == property_name
1283
904
and value._dbus_interface == interface_name):
1284
905
return value.__get__(self)
1285
906
1286
907
# No such property
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",
908
raise DBusPropertyNotFound(self.dbus_object_path + ":"
909
+ interface_name + "."
910
+ property_name)
911
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1301
913
out_signature="v")
1302
914
def Get(self, interface_name, property_name):
1303
915
"""Standard D-Bus property Get() method, see D-Bus standard.
1321
933
# The byte_arrays option is not supported yet on
1322
934
# signatures other than "ay".
1323
935
if prop._dbus_signature != "ay":
1324
raise ValueError("Byte arrays not supported for non-"
1325
"'ay' signature {!r}"
1326
.format(prop._dbus_signature))
936
raise ValueError
1327
937
value = dbus.ByteArray(b''.join(chr(byte)
1328
938
for byte in value))
1329
939
prop(value)
1330
940
1331
@dbus.service.method(dbus.PROPERTIES_IFACE,
1332
in_signature="s",
941
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1333
942
out_signature="a{sv}")
1334
943
def GetAll(self, interface_name):
1335
944
"""Standard D-Bus property GetAll() method, see D-Bus
1350
959
if not hasattr(value, "variant_level"):
1351
960
properties[name] = value
1352
961
continue
1353
properties[name] = type(value)(
1354
value, variant_level = value.variant_level + 1)
962
properties[name] = type(value)(value, variant_level=
963
value.variant_level+1)
1355
964
return dbus.Dictionary(properties, signature="sv")
1356
965
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
1365
966
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1366
967
out_signature="s",
1367
968
path_keyword='object_path',
1371
972
1372
973
Inserts property tags and interface annotation tags.
1373
974
"""
1374
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1375
object_path,
1376
connection)
975
xmlstring = dbus.service.Object.Introspect(self, object_path,
976
connection)
1377
977
try:
1378
978
document = xml.dom.minidom.parseString(xmlstring)
1379
1380
979
def make_tag(document, name, prop):
1381
980
e = document.createElement("property")
1382
981
e.setAttribute("name", name)
1383
982
e.setAttribute("type", prop._dbus_signature)
1384
983
e.setAttribute("access", prop._dbus_access)
1385
984
return e
1386
1387
985
for if_tag in document.getElementsByTagName("interface"):
1388
986
# Add property tags
1389
987
for tag in (make_tag(document, name, prop)
1392
990
if prop._dbus_interface
1393
991
== if_tag.getAttribute("name")):
1394
992
if_tag.appendChild(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)
993
# Add annotation tags
994
for typ in ("method", "signal", "property"):
995
for tag in if_tag.getElementsByTagName(typ):
996
annots = dict()
997
for name, prop in (self.
998
_get_all_dbus_things(typ)):
999
if (name == tag.getAttribute("name")
1000
and prop._dbus_interface
1001
== if_tag.getAttribute("name")):
1002
annots.update(getattr
1003
(prop,
1004
"_dbus_annotations",
1005
{}))
1006
for name, value in annots.iteritems():
1007
ann_tag = document.createElement(
1008
"annotation")
1009
ann_tag.setAttribute("name", name)
1010
ann_tag.setAttribute("value", value)
1011
tag.appendChild(ann_tag)
1012
# Add interface annotation tags
1013
for annotation, value in dict(
1014
itertools.chain.from_iterable(
1015
annotations().iteritems()
1016
for name, annotations in
1017
self._get_all_dbus_things("interface")
1018
if name == if_tag.getAttribute("name")
1019
)).iteritems():
1020
ann_tag = document.createElement("annotation")
1021
ann_tag.setAttribute("name", annotation)
1022
ann_tag.setAttribute("value", value)
1023
if_tag.appendChild(ann_tag)
1411
1024
# Add the names to the return values for the
1412
1025
# "org.freedesktop.DBus.Properties" methods
1413
1026
if (if_tag.getAttribute("name")
1431
1044
exc_info=error)
1432
1045
return xmlstring
1433
1046
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
1502
1047
1503
1048
def datetime_to_dbus(dt, variant_level=0):
1504
1049
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1505
1050
if dt is None:
1506
1051
return dbus.String("", variant_level = variant_level)
1507
return dbus.String(dt.isoformat(), variant_level=variant_level)
1052
return dbus.String(dt.isoformat(),
1053
variant_level=variant_level)
1508
1054
1509
1055
1510
1056
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1530
1076
(from DBusObjectWithProperties) and interfaces (from the
1531
1077
dbus_interface_annotations decorator).
1532
1078
"""
1533
1534
1079
def wrapper(cls):
1535
1080
for orig_interface_name, alt_interface_name in (
1536
alt_interface_names.items()):
1081
alt_interface_names.iteritems()):
1537
1082
attr = {}
1538
1083
interface_names = set()
1539
1084
# Go though all attributes of the class
1541
1086
# Ignore non-D-Bus attributes, and D-Bus attributes
1542
1087
# with the wrong interface name
1543
1088
if (not hasattr(attribute, "_dbus_interface")
1544
or not attribute._dbus_interface.startswith(
1545
orig_interface_name)):
1089
or not attribute._dbus_interface
1090
.startswith(orig_interface_name)):
1546
1091
continue
1547
1092
# Create an alternate D-Bus interface name based on
1548
1093
# the current name
1549
alt_interface = attribute._dbus_interface.replace(
1550
orig_interface_name, alt_interface_name)
1094
alt_interface = (attribute._dbus_interface
1095
.replace(orig_interface_name,
1096
alt_interface_name))
1551
1097
interface_names.add(alt_interface)
1552
1098
# Is this a D-Bus signal?
1553
1099
if getattr(attribute, "_dbus_is_signal", False):
1554
1100
# Extract the original non-method undecorated
1555
1101
# function by black magic
1556
if sys.version_info.major == 2:
1557
nonmethod_func = (dict(
1102
nonmethod_func = (dict(
1558
1103
zip(attribute.func_code.co_freevars,
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)
1104
attribute.__closure__))["func"]
1105
.cell_contents)
1566
1106
# Create a new, but exactly alike, function
1567
1107
# object, and decorate it to be a new D-Bus signal
1568
1108
# with the alternate D-Bus interface name
1569
new_function = copy_function(nonmethod_func)
1570
new_function = (dbus.service.signal(
1571
alt_interface,
1572
attribute._dbus_signature)(new_function))
1109
new_function = (dbus.service.signal
1110
(alt_interface,
1111
attribute._dbus_signature)
1112
(types.FunctionType(
1113
nonmethod_func.func_code,
1114
nonmethod_func.func_globals,
1115
nonmethod_func.func_name,
1116
nonmethod_func.func_defaults,
1117
nonmethod_func.func_closure)))
1573
1118
# Copy annotations, if any
1574
1119
try:
1575
new_function._dbus_annotations = dict(
1576
attribute._dbus_annotations)
1120
new_function._dbus_annotations = (
1121
dict(attribute._dbus_annotations))
1577
1122
except AttributeError:
1578
1123
pass
1579
1124
# Define a creator of a function to call both the
1584
1129
"""This function is a scope container to pass
1585
1130
func1 and func2 to the "call_both" function
1586
1131
outside of its arguments"""
1587
1588
@functools.wraps(func2)
1589
1132
def call_both(*args, **kwargs):
1590
1133
"""This function will emit two D-Bus
1591
1134
signals by calling func1 and func2"""
1592
1135
func1(*args, **kwargs)
1593
1136
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
1599
1137
return call_both
1600
1138
# Create the "call_both" function and add it to
1601
1139
# the class
1606
1144
# object. Decorate it to be a new D-Bus method
1607
1145
# with the alternate D-Bus interface name. Add it
1608
1146
# to the class.
1609
attr[attrname] = (
1610
dbus.service.method(
1611
alt_interface,
1612
attribute._dbus_in_signature,
1613
attribute._dbus_out_signature)
1614
(copy_function(attribute)))
1147
attr[attrname] = (dbus.service.method
1148
(alt_interface,
1149
attribute._dbus_in_signature,
1150
attribute._dbus_out_signature)
1151
(types.FunctionType
1152
(attribute.func_code,
1153
attribute.func_globals,
1154
attribute.func_name,
1155
attribute.func_defaults,
1156
attribute.func_closure)))
1615
1157
# Copy annotations, if any
1616
1158
try:
1617
attr[attrname]._dbus_annotations = dict(
1618
attribute._dbus_annotations)
1159
attr[attrname]._dbus_annotations = (
1160
dict(attribute._dbus_annotations))
1619
1161
except AttributeError:
1620
1162
pass
1621
1163
# Is this a D-Bus property?
1624
1166
# object, and decorate it to be a new D-Bus
1625
1167
# property with the alternate D-Bus interface
1626
1168
# name. Add it to the class.
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)))
1169
attr[attrname] = (dbus_service_property
1170
(alt_interface,
1171
attribute._dbus_signature,
1172
attribute._dbus_access,
1173
attribute
1174
._dbus_get_args_options
1175
["byte_arrays"])
1176
(types.FunctionType
1177
(attribute.func_code,
1178
attribute.func_globals,
1179
attribute.func_name,
1180
attribute.func_defaults,
1181
attribute.func_closure)))
1633
1182
# Copy annotations, if any
1634
1183
try:
1635
attr[attrname]._dbus_annotations = dict(
1636
attribute._dbus_annotations)
1184
attr[attrname]._dbus_annotations = (
1185
dict(attribute._dbus_annotations))
1637
1186
except AttributeError:
1638
1187
pass
1639
1188
# Is this a D-Bus interface?
1642
1191
# object. Decorate it to be a new D-Bus interface
1643
1192
# with the alternate D-Bus interface name. Add it
1644
1193
# to the class.
1645
attr[attrname] = (
1646
dbus_interface_annotations(alt_interface)
1647
(copy_function(attribute)))
1194
attr[attrname] = (dbus_interface_annotations
1195
(alt_interface)
1196
(types.FunctionType
1197
(attribute.func_code,
1198
attribute.func_globals,
1199
attribute.func_name,
1200
attribute.func_defaults,
1201
attribute.func_closure)))
1648
1202
if deprecate:
1649
1203
# Deprecate all alternate interfaces
1650
iname="_AlternateDBusNames_interface_annotation{}"
1204
iname="_AlternateDBusNames_interface_annotation{0}"
1651
1205
for interface_name in interface_names:
1652
1653
1206
@dbus_interface_annotations(interface_name)
1654
1207
def func(self):
1655
1208
return { "org.freedesktop.DBus.Deprecated":
1656
"true" }
1209
"true" }
1657
1210
# Find an unused name
1658
1211
for aname in (iname.format(i)
1659
1212
for i in itertools.count()):
1663
1216
if interface_names:
1664
1217
# Replace the class with a new subclass of it with
1665
1218
# methods, signals, etc. as created above.
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)
1219
cls = type(b"{0}Alternate".format(cls.__name__),
1220
(cls,), attr)
1672
1221
return cls
1673
1674
1222
return wrapper
1675
1223
1676
1224
1677
1225
@alternate_dbus_interfaces({"se.recompile.Mandos":
1678
"se.bsnet.fukt.Mandos"})
1226
"se.bsnet.fukt.Mandos"})
1679
1227
class ClientDBus(Client, DBusObjectWithProperties):
1680
1228
"""A Client class using D-Bus
1681
1229
1685
1233
"""
1686
1234
1687
1235
runtime_expansions = (Client.runtime_expansions
1688
+ ("dbus_object_path", ))
1689
1690
_interface = "se.recompile.Mandos.Client"
1236
+ ("dbus_object_path",))
1691
1237
1692
1238
# dbus.service.Object doesn't use super(), so we can't either.
1693
1239
1696
1242
Client.__init__(self, *args, **kwargs)
1697
1243
# Only now, when this client is initialized, can it show up on
1698
1244
# the D-Bus
1699
client_object_name = str(self.name).translate(
1245
client_object_name = unicode(self.name).translate(
1700
1246
{ord("."): ord("_"),
1701
1247
ord("-"): ord("_")})
1702
self.dbus_object_path = dbus.ObjectPath(
1703
"/clients/" + client_object_name)
1248
self.dbus_object_path = (dbus.ObjectPath
1249
("/clients/" + client_object_name))
1704
1250
DBusObjectWithProperties.__init__(self, self.bus,
1705
1251
self.dbus_object_path)
1706
1252
1707
def notifychangeproperty(transform_func, dbus_name,
1708
type_func=lambda x: x,
1709
variant_level=1,
1710
invalidate_only=False,
1711
_interface=_interface):
1253
def notifychangeproperty(transform_func,
1254
dbus_name, type_func=lambda x: x,
1255
variant_level=1):
1712
1256
""" Modify a variable so that it's a property which announces
1713
1257
its changes to DBus.
1714
1258
1719
1263
to the D-Bus. Default: no transform
1720
1264
variant_level: D-Bus variant level. Default: 1
1721
1265
"""
1722
attrname = "_{}".format(dbus_name)
1723
1266
attrname = "_{0}".format(dbus_name)
1724
1267
def setter(self, value):
1725
1268
if hasattr(self, "dbus_object_path"):
1726
1269
if (not hasattr(self, attrname) or
1727
1270
type_func(getattr(self, attrname, None))
1728
1271
!= type_func(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())
1272
dbus_value = transform_func(type_func(value),
1273
variant_level
1274
=variant_level)
1275
self.PropertyChanged(dbus.String(dbus_name),
1276
dbus_value)
1744
1277
setattr(self, attrname, value)
1745
1278
1746
1279
return property(lambda self: getattr(self, attrname), setter)
1752
1285
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1753
1286
last_enabled = notifychangeproperty(datetime_to_dbus,
1754
1287
"LastEnabled")
1755
checker = notifychangeproperty(
1756
dbus.Boolean, "CheckerRunning",
1757
type_func = lambda checker: checker is not None)
1288
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1289
type_func = lambda checker:
1290
checker is not None)
1758
1291
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1759
1292
"LastCheckedOK")
1760
1293
last_checker_status = notifychangeproperty(dbus.Int16,
1763
1296
datetime_to_dbus, "LastApprovalRequest")
1764
1297
approved_by_default = notifychangeproperty(dbus.Boolean,
1765
1298
"ApprovedByDefault")
1766
approval_delay = notifychangeproperty(
1767
dbus.UInt64, "ApprovalDelay",
1768
type_func = lambda td: td.total_seconds() * 1000)
1299
approval_delay = notifychangeproperty(dbus.UInt64,
1300
"ApprovalDelay",
1301
type_func =
1302
timedelta_to_milliseconds)
1769
1303
approval_duration = notifychangeproperty(
1770
1304
dbus.UInt64, "ApprovalDuration",
1771
type_func = lambda td: td.total_seconds() * 1000)
1305
type_func = timedelta_to_milliseconds)
1772
1306
host = notifychangeproperty(dbus.String, "Host")
1773
timeout = notifychangeproperty(
1774
dbus.UInt64, "Timeout",
1775
type_func = lambda td: td.total_seconds() * 1000)
1307
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1308
type_func =
1309
timedelta_to_milliseconds)
1776
1310
extended_timeout = notifychangeproperty(
1777
1311
dbus.UInt64, "ExtendedTimeout",
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)
1312
type_func = timedelta_to_milliseconds)
1313
interval = notifychangeproperty(dbus.UInt64,
1314
"Interval",
1315
type_func =
1316
timedelta_to_milliseconds)
1782
1317
checker_command = notifychangeproperty(dbus.String, "Checker")
1783
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1784
invalidate_only=True)
1785
1318
1786
1319
del notifychangeproperty
1787
1320
1794
1327
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1795
1328
Client.__del__(self, *args, **kwargs)
1796
1329
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:
1330
def checker_callback(self, pid, condition, command,
1331
*args, **kwargs):
1332
self.checker_callback_tag = None
1333
self.checker = None
1334
if os.WIFEXITED(condition):
1335
exitstatus = os.WEXITSTATUS(condition)
1804
1336
# Emit D-Bus signal
1805
1337
self.CheckerCompleted(dbus.Int16(exitstatus),
1806
# This is specific to GNU libC
1807
dbus.Int64(exitstatus << 8),
1338
dbus.Int64(condition),
1808
1339
dbus.String(command))
1809
1340
else:
1810
1341
# Emit D-Bus signal
1811
1342
self.CheckerCompleted(dbus.Int16(-1),
1812
dbus.Int64(
1813
# This is specific to GNU libC
1814
(exitstatus << 8)
1815
| self.last_checker_signal),
1343
dbus.Int64(condition),
1816
1344
dbus.String(command))
1817
return ret
1345
1346
return Client.checker_callback(self, pid, condition, command,
1347
*args, **kwargs)
1818
1348
1819
1349
def start_checker(self, *args, **kwargs):
1820
old_checker_pid = getattr(self.checker, "pid", None)
1350
old_checker = self.checker
1351
if self.checker is not None:
1352
old_checker_pid = self.checker.pid
1353
else:
1354
old_checker_pid = None
1821
1355
r = Client.start_checker(self, *args, **kwargs)
1822
1356
# Only if new checker process was started
1823
1357
if (self.checker is not None
1832
1366
1833
1367
def approve(self, value=True):
1834
1368
self.approved = value
1835
GObject.timeout_add(int(self.approval_duration.total_seconds()
1836
* 1000), self._reset_approved)
1369
gobject.timeout_add(timedelta_to_milliseconds
1370
(self.approval_duration),
1371
self._reset_approved)
1837
1372
self.send_changedstate()
1838
1373
1839
1374
## D-Bus methods, signals & properties
1375
_interface = "se.recompile.Mandos.Client"
1840
1376
1841
1377
## Interfaces
1842
1378
1379
@dbus_interface_annotations(_interface)
1380
def _foo(self):
1381
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1382
"false"}
1383
1843
1384
## Signals
1844
1385
1845
1386
# CheckerCompleted - signal
1855
1396
pass
1856
1397
1857
1398
# PropertyChanged - signal
1858
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1859
1399
@dbus.service.signal(_interface, signature="sv")
1860
1400
def PropertyChanged(self, property, value):
1861
1401
"D-Bus signal"
1895
1435
self.checked_ok()
1896
1436
1897
1437
# Enable - method
1898
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1899
1438
@dbus.service.method(_interface)
1900
1439
def Enable(self):
1901
1440
"D-Bus method"
1902
1441
self.enable()
1903
1442
1904
1443
# StartChecker - method
1905
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1906
1444
@dbus.service.method(_interface)
1907
1445
def StartChecker(self):
1908
1446
"D-Bus method"
1909
1447
self.start_checker()
1910
1448
1911
1449
# Disable - method
1912
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1913
1450
@dbus.service.method(_interface)
1914
1451
def Disable(self):
1915
1452
"D-Bus method"
1916
1453
self.disable()
1917
1454
1918
1455
# StopChecker - method
1919
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1920
1456
@dbus.service.method(_interface)
1921
1457
def StopChecker(self):
1922
1458
self.stop_checker()
1929
1465
return dbus.Boolean(bool(self.approvals_pending))
1930
1466
1931
1467
# ApprovedByDefault - property
1932
@dbus_service_property(_interface,
1933
signature="b",
1468
@dbus_service_property(_interface, signature="b",
1934
1469
access="readwrite")
1935
1470
def ApprovedByDefault_dbus_property(self, value=None):
1936
1471
if value is None: # get
1938
1473
self.approved_by_default = bool(value)
1939
1474
1940
1475
# ApprovalDelay - property
1941
@dbus_service_property(_interface,
1942
signature="t",
1476
@dbus_service_property(_interface, signature="t",
1943
1477
access="readwrite")
1944
1478
def ApprovalDelay_dbus_property(self, value=None):
1945
1479
if value is None: # get
1946
return dbus.UInt64(self.approval_delay.total_seconds()
1947
* 1000)
1480
return dbus.UInt64(self.approval_delay_milliseconds())
1948
1481
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1949
1482
1950
1483
# ApprovalDuration - property
1951
@dbus_service_property(_interface,
1952
signature="t",
1484
@dbus_service_property(_interface, signature="t",
1953
1485
access="readwrite")
1954
1486
def ApprovalDuration_dbus_property(self, value=None):
1955
1487
if value is None: # get
1956
return dbus.UInt64(self.approval_duration.total_seconds()
1957
* 1000)
1488
return dbus.UInt64(timedelta_to_milliseconds(
1489
self.approval_duration))
1958
1490
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1959
1491
1960
1492
# Name - property
1961
@dbus_annotations(
1962
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1963
1493
@dbus_service_property(_interface, signature="s", access="read")
1964
1494
def Name_dbus_property(self):
1965
1495
return dbus.String(self.name)
1966
1496
1967
1497
# Fingerprint - property
1968
@dbus_annotations(
1969
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1970
1498
@dbus_service_property(_interface, signature="s", access="read")
1971
1499
def Fingerprint_dbus_property(self):
1972
1500
return dbus.String(self.fingerprint)
1973
1501
1974
1502
# Host - property
1975
@dbus_service_property(_interface,
1976
signature="s",
1503
@dbus_service_property(_interface, signature="s",
1977
1504
access="readwrite")
1978
1505
def Host_dbus_property(self, value=None):
1979
1506
if value is None: # get
1980
1507
return dbus.String(self.host)
1981
self.host = str(value)
1508
self.host = unicode(value)
1982
1509
1983
1510
# Created - property
1984
@dbus_annotations(
1985
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1986
1511
@dbus_service_property(_interface, signature="s", access="read")
1987
1512
def Created_dbus_property(self):
1988
1513
return datetime_to_dbus(self.created)
1993
1518
return datetime_to_dbus(self.last_enabled)
1994
1519
1995
1520
# Enabled - property
1996
@dbus_service_property(_interface,
1997
signature="b",
1521
@dbus_service_property(_interface, signature="b",
1998
1522
access="readwrite")
1999
1523
def Enabled_dbus_property(self, value=None):
2000
1524
if value is None: # get
2005
1529
self.disable()
2006
1530
2007
1531
# LastCheckedOK - property
2008
@dbus_service_property(_interface,
2009
signature="s",
1532
@dbus_service_property(_interface, signature="s",
2010
1533
access="readwrite")
2011
1534
def LastCheckedOK_dbus_property(self, value=None):
2012
1535
if value is not None:
2015
1538
return datetime_to_dbus(self.last_checked_ok)
2016
1539
2017
1540
# LastCheckerStatus - property
2018
@dbus_service_property(_interface, signature="n", access="read")
1541
@dbus_service_property(_interface, signature="n",
1542
access="read")
2019
1543
def LastCheckerStatus_dbus_property(self):
2020
1544
return dbus.Int16(self.last_checker_status)
2021
1545
2030
1554
return datetime_to_dbus(self.last_approval_request)
2031
1555
2032
1556
# Timeout - property
2033
@dbus_service_property(_interface,
2034
signature="t",
1557
@dbus_service_property(_interface, signature="t",
2035
1558
access="readwrite")
2036
1559
def Timeout_dbus_property(self, value=None):
2037
1560
if value is None: # get
2038
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1561
return dbus.UInt64(self.timeout_milliseconds())
2039
1562
old_timeout = self.timeout
2040
1563
self.timeout = datetime.timedelta(0, 0, 0, value)
2041
1564
# Reschedule disabling
2049
1572
if (getattr(self, "disable_initiator_tag", None)
2050
1573
is None):
2051
1574
return
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)
1575
gobject.source_remove(self.disable_initiator_tag)
1576
self.disable_initiator_tag = (
1577
gobject.timeout_add(
1578
timedelta_to_milliseconds(self.expires - now),
1579
self.disable))
2056
1580
2057
1581
# ExtendedTimeout - property
2058
@dbus_service_property(_interface,
2059
signature="t",
1582
@dbus_service_property(_interface, signature="t",
2060
1583
access="readwrite")
2061
1584
def ExtendedTimeout_dbus_property(self, value=None):
2062
1585
if value is None: # get
2063
return dbus.UInt64(self.extended_timeout.total_seconds()
2064
* 1000)
1586
return dbus.UInt64(self.extended_timeout_milliseconds())
2065
1587
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2066
1588
2067
1589
# Interval - property
2068
@dbus_service_property(_interface,
2069
signature="t",
1590
@dbus_service_property(_interface, signature="t",
2070
1591
access="readwrite")
2071
1592
def Interval_dbus_property(self, value=None):
2072
1593
if value is None: # get
2073
return dbus.UInt64(self.interval.total_seconds() * 1000)
1594
return dbus.UInt64(self.interval_milliseconds())
2074
1595
self.interval = datetime.timedelta(0, 0, 0, value)
2075
1596
if getattr(self, "checker_initiator_tag", None) is None:
2076
1597
return
2077
1598
if self.enabled:
2078
1599
# Reschedule checker run
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
1600
gobject.source_remove(self.checker_initiator_tag)
1601
self.checker_initiator_tag = (gobject.timeout_add
1602
(value, self.start_checker))
1603
self.start_checker() # Start one now, too
2083
1604
2084
1605
# Checker - property
2085
@dbus_service_property(_interface,
2086
signature="s",
1606
@dbus_service_property(_interface, signature="s",
2087
1607
access="readwrite")
2088
1608
def Checker_dbus_property(self, value=None):
2089
1609
if value is None: # get
2090
1610
return dbus.String(self.checker_command)
2091
self.checker_command = str(value)
1611
self.checker_command = unicode(value)
2092
1612
2093
1613
# CheckerRunning - property
2094
@dbus_service_property(_interface,
2095
signature="b",
1614
@dbus_service_property(_interface, signature="b",
2096
1615
access="readwrite")
2097
1616
def CheckerRunning_dbus_property(self, value=None):
2098
1617
if value is None: # get
2103
1622
self.stop_checker()
2104
1623
2105
1624
# ObjectPath - property
2106
@dbus_annotations(
2107
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2108
"org.freedesktop.DBus.Deprecated": "true"})
2109
1625
@dbus_service_property(_interface, signature="o", access="read")
2110
1626
def ObjectPath_dbus_property(self):
2111
1627
return self.dbus_object_path # is already a dbus.ObjectPath
2112
1628
2113
1629
# Secret = property
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)
1630
@dbus_service_property(_interface, signature="ay",
1631
access="write", byte_arrays=True)
2121
1632
def Secret_dbus_property(self, value):
2122
self.secret = bytes(value)
1633
self.secret = str(value)
2123
1634
2124
1635
del _interface
2125
1636
2129
1640
self._pipe = child_pipe
2130
1641
self._pipe.send(('init', fpr, address))
2131
1642
if not self._pipe.recv():
2132
raise KeyError(fpr)
1643
raise KeyError()
2133
1644
2134
1645
def __getattribute__(self, name):
2135
1646
if name == '_pipe':
2139
1650
if data[0] == 'data':
2140
1651
return data[1]
2141
1652
if data[0] == 'function':
2142
2143
1653
def func(*args, **kwargs):
2144
1654
self._pipe.send(('funcall', name, args, kwargs))
2145
1655
return self._pipe.recv()[1]
2146
2147
1656
return func
2148
1657
2149
1658
def __setattr__(self, name, value):
2161
1670
def handle(self):
2162
1671
with contextlib.closing(self.server.child_pipe) as child_pipe:
2163
1672
logger.info("TCP connection from: %s",
2164
str(self.client_address))
1673
unicode(self.client_address))
2165
1674
logger.debug("Pipe FD: %d",
2166
1675
self.server.child_pipe.fileno())
2167
1676
2168
session = gnutls.ClientSession(self.request)
1677
session = (gnutls.connection
1678
.ClientSession(self.request,
1679
gnutls.connection
1680
.X509Credentials()))
1681
1682
# Note: gnutls.connection.X509Credentials is really a
1683
# generic GnuTLS certificate credentials object so long as
1684
# no X.509 keys are added to it. Therefore, we can use it
1685
# here despite using OpenPGP certificates.
2169
1686
2170
1687
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2171
1688
# "+AES-256-CBC", "+SHA1",
2175
1692
priority = self.server.gnutls_priority
2176
1693
if priority is None:
2177
1694
priority = "NORMAL"
2178
gnutls.priority_set_direct(session._c_object, priority,
2179
None)
1695
(gnutls.library.functions
1696
.gnutls_priority_set_direct(session._c_object,
1697
priority, None))
2180
1698
2181
1699
# Start communication using the Mandos protocol
2182
1700
# Get protocol number
2184
1702
logger.debug("Protocol version: %r", line)
2185
1703
try:
2186
1704
if int(line.strip().split()[0]) > 1:
2187
raise RuntimeError(line)
1705
raise RuntimeError
2188
1706
except (ValueError, IndexError, RuntimeError) as error:
2189
1707
logger.error("Unknown protocol version: %s", error)
2190
1708
return
2192
1710
# Start GnuTLS connection
2193
1711
try:
2194
1712
session.handshake()
2195
except gnutls.Error as error:
1713
except gnutls.errors.GNUTLSError as error:
2196
1714
logger.warning("Handshake failed: %s", error)
2197
1715
# Do not run session.bye() here: the session is not
2198
1716
# established. Just abandon the request.
2202
1720
approval_required = False
2203
1721
try:
2204
1722
try:
2205
fpr = self.fingerprint(
2206
self.peer_certificate(session))
2207
except (TypeError, gnutls.Error) as error:
1723
fpr = self.fingerprint(self.peer_certificate
1724
(session))
1725
except (TypeError,
1726
gnutls.errors.GNUTLSError) as error:
2208
1727
logger.warning("Bad certificate: %s", error)
2209
1728
return
2210
1729
logger.debug("Fingerprint: %s", fpr)
2223
1742
while True:
2224
1743
if not client.enabled:
2225
1744
logger.info("Client %s is disabled",
2226
client.name)
1745
client.name)
2227
1746
if self.server.use_dbus:
2228
1747
# Emit D-Bus signal
2229
1748
client.Rejected("Disabled")
2238
1757
if self.server.use_dbus:
2239
1758
# Emit D-Bus signal
2240
1759
client.NeedApproval(
2241
client.approval_delay.total_seconds()
2242
* 1000, client.approved_by_default)
1760
client.approval_delay_milliseconds(),
1761
client.approved_by_default)
2243
1762
else:
2244
1763
logger.warning("Client %s was not approved",
2245
1764
client.name)
2251
1770
#wait until timeout or approved
2252
1771
time = datetime.datetime.now()
2253
1772
client.changedstate.acquire()
2254
client.changedstate.wait(delay.total_seconds())
1773
client.changedstate.wait(
1774
float(timedelta_to_milliseconds(delay)
1775
/ 1000))
2255
1776
client.changedstate.release()
2256
1777
time2 = datetime.datetime.now()
2257
1778
if (time2 - time) >= delay:
2268
1789
else:
2269
1790
delay -= time2 - time
2270
1791
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
1792
sent_size = 0
1793
while sent_size < len(client.secret):
1794
try:
1795
sent = session.send(client.secret[sent_size:])
1796
except gnutls.errors.GNUTLSError as error:
1797
logger.warning("gnutls send failed",
1798
exc_info=error)
1799
return
1800
logger.debug("Sent: %d, remaining: %d",
1801
sent, len(client.secret)
1802
- (sent_size + sent))
1803
sent_size += sent
2277
1804
2278
1805
logger.info("Sending secret to %s", client.name)
2279
1806
# bump the timeout using extended_timeout
2287
1814
client.approvals_pending -= 1
2288
1815
try:
2289
1816
session.bye()
2290
except gnutls.Error as error:
1817
except gnutls.errors.GNUTLSError as error:
2291
1818
logger.warning("GnuTLS bye failed",
2292
1819
exc_info=error)
2293
1820
2295
1822
def peer_certificate(session):
2296
1823
"Return the peer's OpenPGP certificate as a bytestring"
2297
1824
# If not an OpenPGP certificate...
2298
if (gnutls.certificate_type_get(session._c_object)
2299
!= gnutls.CRT_OPENPGP):
2300
# ...return invalid data
2301
return b""
1825
if (gnutls.library.functions
1826
.gnutls_certificate_type_get(session._c_object)
1827
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1828
# ...do the normal thing
1829
return session.peer_certificate
2302
1830
list_size = ctypes.c_uint(1)
2303
cert_list = (gnutls.certificate_get_peers
1831
cert_list = (gnutls.library.functions
1832
.gnutls_certificate_get_peers
2304
1833
(session._c_object, ctypes.byref(list_size)))
2305
1834
if not bool(cert_list) and list_size.value != 0:
2306
raise gnutls.Error("error getting peer certificate")
1835
raise gnutls.errors.GNUTLSError("error getting peer"
1836
" certificate")
2307
1837
if list_size.value == 0:
2308
1838
return None
2309
1839
cert = cert_list[0]
2313
1843
def fingerprint(openpgp):
2314
1844
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2315
1845
# New GnuTLS "datum" with the OpenPGP public key
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)))
1846
datum = (gnutls.library.types
1847
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1848
ctypes.POINTER
1849
(ctypes.c_ubyte)),
1850
ctypes.c_uint(len(openpgp))))
2320
1851
# New empty GnuTLS certificate
2321
crt = gnutls.openpgp_crt_t()
2322
gnutls.openpgp_crt_init(ctypes.byref(crt))
1852
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1853
(gnutls.library.functions
1854
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2323
1855
# Import the OpenPGP public key into the certificate
2324
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2325
gnutls.OPENPGP_FMT_RAW)
1856
(gnutls.library.functions
1857
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1858
gnutls.library.constants
1859
.GNUTLS_OPENPGP_FMT_RAW))
2326
1860
# Verify the self signature in the key
2327
1861
crtverify = ctypes.c_uint()
2328
gnutls.openpgp_crt_verify_self(crt, 0,
2329
ctypes.byref(crtverify))
1862
(gnutls.library.functions
1863
.gnutls_openpgp_crt_verify_self(crt, 0,
1864
ctypes.byref(crtverify)))
2330
1865
if crtverify.value != 0:
2331
gnutls.openpgp_crt_deinit(crt)
2332
raise gnutls.CertificateSecurityError("Verify failed")
1866
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1867
raise (gnutls.errors.CertificateSecurityError
1868
("Verify failed"))
2333
1869
# New buffer for the fingerprint
2334
1870
buf = ctypes.create_string_buffer(20)
2335
1871
buf_len = ctypes.c_size_t()
2336
1872
# Get the fingerprint from the certificate into the buffer
2337
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2338
ctypes.byref(buf_len))
1873
(gnutls.library.functions
1874
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1875
ctypes.byref(buf_len)))
2339
1876
# Deinit the certificate
2340
gnutls.openpgp_crt_deinit(crt)
1877
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2341
1878
# Convert the buffer to a Python bytestring
2342
1879
fpr = ctypes.string_at(buf, buf_len.value)
2343
1880
# Convert the bytestring to hexadecimal notation
2347
1884
2348
1885
class MultiprocessingMixIn(object):
2349
1886
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2350
2351
1887
def sub_process_main(self, request, address):
2352
1888
try:
2353
1889
self.finish_request(request, address)
2365
1901
2366
1902
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2367
1903
""" adds a pipe to the MixIn """
2368
2369
1904
def process_request(self, request, client_address):
2370
1905
"""Overrides and wraps the original process_request().
2371
1906
2380
1915
2381
1916
def add_pipe(self, parent_pipe, proc):
2382
1917
"""Dummy function; override as necessary"""
2383
raise NotImplementedError()
1918
raise NotImplementedError
2384
1919
2385
1920
2386
1921
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2392
1927
interface: None or a network interface name (string)
2393
1928
use_ipv6: Boolean; to use IPv6 or not
2394
1929
"""
2395
2396
1930
def __init__(self, server_address, RequestHandlerClass,
2397
interface=None,
2398
use_ipv6=True,
2399
socketfd=None):
1931
interface=None, use_ipv6=True, socketfd=None):
2400
1932
"""If socketfd is set, use that file descriptor instead of
2401
1933
creating a new one with socket.socket().
2402
1934
"""
2443
1975
self.interface)
2444
1976
else:
2445
1977
try:
2446
self.socket.setsockopt(
2447
socket.SOL_SOCKET, SO_BINDTODEVICE,
2448
(self.interface + "\0").encode("utf-8"))
1978
self.socket.setsockopt(socket.SOL_SOCKET,
1979
SO_BINDTODEVICE,
1980
str(self.interface + '\0'))
2449
1981
except socket.error as error:
2450
1982
if error.errno == errno.EPERM:
2451
1983
logger.error("No permission to bind to"
2469
2001
self.server_address = (any_address,
2470
2002
self.server_address[1])
2471
2003
elif not self.server_address[1]:
2472
self.server_address = (self.server_address[0], 0)
2004
self.server_address = (self.server_address[0],
2005
0)
2473
2006
# if self.interface:
2474
2007
# self.server_address = (self.server_address[0],
2475
2008
# 0, # port
2487
2020
gnutls_priority GnuTLS priority string
2488
2021
use_dbus: Boolean; to emit D-Bus signals or not
2489
2022
2490
Assumes a GObject.MainLoop event loop.
2023
Assumes a gobject.MainLoop event loop.
2491
2024
"""
2492
2493
2025
def __init__(self, server_address, RequestHandlerClass,
2494
interface=None,
2495
use_ipv6=True,
2496
clients=None,
2497
gnutls_priority=None,
2498
use_dbus=True,
2499
socketfd=None):
2026
interface=None, use_ipv6=True, clients=None,
2027
gnutls_priority=None, use_dbus=True, socketfd=None):
2500
2028
self.enabled = False
2501
2029
self.clients = clients
2502
2030
if self.clients is None:
2508
2036
interface = interface,
2509
2037
use_ipv6 = use_ipv6,
2510
2038
socketfd = socketfd)
2511
2512
2039
def server_activate(self):
2513
2040
if self.enabled:
2514
2041
return socketserver.TCPServer.server_activate(self)
2518
2045
2519
2046
def add_pipe(self, parent_pipe, proc):
2520
2047
# Call "handle_ipc" for both data and EOF events
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))
2048
gobject.io_add_watch(parent_pipe.fileno(),
2049
gobject.IO_IN | gobject.IO_HUP,
2050
functools.partial(self.handle_ipc,
2051
parent_pipe =
2052
parent_pipe,
2053
proc = proc))
2527
2054
2528
def handle_ipc(self, source, condition,
2529
parent_pipe=None,
2530
proc = None,
2531
client_object=None):
2055
def handle_ipc(self, source, condition, parent_pipe=None,
2056
proc = None, client_object=None):
2532
2057
# error, or the other end of multiprocessing.Pipe has closed
2533
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2058
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2534
2059
# Wait for other process to exit
2535
2060
proc.join()
2536
2061
return False
2543
2068
fpr = request[1]
2544
2069
address = request[2]
2545
2070
2546
for c in self.clients.values():
2071
for c in self.clients.itervalues():
2547
2072
if c.fingerprint == fpr:
2548
2073
client = c
2549
2074
break
2557
2082
parent_pipe.send(False)
2558
2083
return False
2559
2084
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))
2085
gobject.io_add_watch(parent_pipe.fileno(),
2086
gobject.IO_IN | gobject.IO_HUP,
2087
functools.partial(self.handle_ipc,
2088
parent_pipe =
2089
parent_pipe,
2090
proc = proc,
2091
client_object =
2092
client))
2567
2093
parent_pipe.send(True)
2568
2094
# remove the old hook in favor of the new above hook on
2569
2095
# same fileno
2575
2101
2576
2102
parent_pipe.send(('data', getattr(client_object,
2577
2103
funcname)(*args,
2578
**kwargs)))
2104
**kwargs)))
2579
2105
2580
2106
if command == 'getattr':
2581
2107
attrname = request[1]
2582
if isinstance(client_object.__getattribute__(attrname),
2583
collections.Callable):
2584
parent_pipe.send(('function', ))
2108
if callable(client_object.__getattribute__(attrname)):
2109
parent_pipe.send(('function',))
2585
2110
else:
2586
parent_pipe.send((
2587
'data', client_object.__getattribute__(attrname)))
2111
parent_pipe.send(('data', client_object
2112
.__getattribute__(attrname)))
2588
2113
2589
2114
if command == 'setattr':
2590
2115
attrname = request[1]
2621
2146
# avoid excessive use of external libraries.
2622
2147
2623
2148
# New type for defining tokens, syntax, and semantics all-in-one
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
2149
Token = collections.namedtuple("Token",
2150
("regexp", # To match token; if
2151
# "value" is not None,
2152
# must have a "group"
2153
# containing digits
2154
"value", # datetime.timedelta or
2155
# None
2156
"followers")) # Tokens valid after
2157
# this token
2629
2158
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2630
2159
# the "duration" ABNF definition in RFC 3339, Appendix A.
2631
2160
token_end = Token(re.compile(r"$"), None, frozenset())
2632
2161
token_second = Token(re.compile(r"(\d+)S"),
2633
2162
datetime.timedelta(seconds=1),
2634
frozenset((token_end, )))
2163
frozenset((token_end,)))
2635
2164
token_minute = Token(re.compile(r"(\d+)M"),
2636
2165
datetime.timedelta(minutes=1),
2637
2166
frozenset((token_second, token_end)))
2653
2182
frozenset((token_month, token_end)))
2654
2183
token_week = Token(re.compile(r"(\d+)W"),
2655
2184
datetime.timedelta(weeks=1),
2656
frozenset((token_end, )))
2185
frozenset((token_end,)))
2657
2186
token_duration = Token(re.compile(r"P"), None,
2658
2187
frozenset((token_year, token_month,
2659
2188
token_day, token_time,
2660
token_week)))
2189
token_week))),
2661
2190
# Define starting values
2662
2191
value = datetime.timedelta() # Value so far
2663
2192
found_token = None
2664
followers = frozenset((token_duration, )) # Following valid tokens
2193
followers = frozenset(token_duration,) # Following valid tokens
2665
2194
s = duration # String left to parse
2666
2195
# Loop until end token is found
2667
2196
while found_token is not token_end:
2684
2213
break
2685
2214
else:
2686
2215
# No currently valid tokens were found
2687
raise ValueError("Invalid RFC 3339 duration: {!r}"
2688
.format(duration))
2216
raise ValueError("Invalid RFC 3339 duration")
2689
2217
# End token found
2690
2218
return value
2691
2219
2715
2243
timevalue = datetime.timedelta(0)
2716
2244
for s in interval.split():
2717
2245
try:
2718
suffix = s[-1]
2246
suffix = unicode(s[-1])
2719
2247
value = int(s[:-1])
2720
2248
if suffix == "d":
2721
2249
delta = datetime.timedelta(value)
2728
2256
elif suffix == "w":
2729
2257
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2730
2258
else:
2731
raise ValueError("Unknown suffix {!r}".format(suffix))
2732
except IndexError as e:
2259
raise ValueError("Unknown suffix {0!r}"
2260
.format(suffix))
2261
except (ValueError, IndexError) as e:
2733
2262
raise ValueError(*(e.args))
2734
2263
timevalue += delta
2735
2264
return timevalue
2751
2280
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2752
2281
if not stat.S_ISCHR(os.fstat(null).st_mode):
2753
2282
raise OSError(errno.ENODEV,
2754
"{} not a character device"
2283
"{0} not a character device"
2755
2284
.format(os.devnull))
2756
2285
os.dup2(null, sys.stdin.fileno())
2757
2286
os.dup2(null, sys.stdout.fileno())
2767
2296
2768
2297
parser = argparse.ArgumentParser()
2769
2298
parser.add_argument("-v", "--version", action="version",
2770
version = "%(prog)s {}".format(version),
2299
version = "%(prog)s {0}".format(version),
2771
2300
help="show version number and exit")
2772
2301
parser.add_argument("-i", "--interface", metavar="IF",
2773
2302
help="Bind to interface IF")
2806
2335
help="Directory to save/restore state in")
2807
2336
parser.add_argument("--foreground", action="store_true",
2808
2337
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)
2812
2338
2813
2339
options = parser.parse_args()
2814
2340
2815
2341
if options.check:
2816
2342
import doctest
2817
fail_count, test_count = doctest.testmod()
2818
sys.exit(os.EX_OK if fail_count == 0 else 1)
2343
doctest.testmod()
2344
sys.exit()
2819
2345
2820
2346
# Default values for config file for server-global settings
2821
2347
server_defaults = { "interface": "",
2823
2349
"port": "",
2824
2350
"debug": "False",
2825
2351
"priority":
2826
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2827
":+SIGN-DSA-SHA256",
2352
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2828
2353
"servicename": "Mandos",
2829
2354
"use_dbus": "True",
2830
2355
"use_ipv6": "True",
2833
2358
"socket": "",
2834
2359
"statedir": "/var/lib/mandos",
2835
2360
"foreground": "False",
2836
"zeroconf": "True",
2837
}
2361
}
2838
2362
2839
2363
# Parse config file for server-global settings
2840
2364
server_config = configparser.SafeConfigParser(server_defaults)
2841
2365
del server_defaults
2842
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2366
server_config.read(os.path.join(options.configdir,
2367
"mandos.conf"))
2843
2368
# Convert the SafeConfigParser object to a dict
2844
2369
server_settings = server_config.defaults()
2845
2370
# Use the appropriate methods on the non-string config options
2863
2388
# Override the settings from the config file with command line
2864
2389
# options, if set.
2865
2390
for option in ("interface", "address", "port", "debug",
2866
"priority", "servicename", "configdir", "use_dbus",
2867
"use_ipv6", "debuglevel", "restore", "statedir",
2868
"socket", "foreground", "zeroconf"):
2391
"priority", "servicename", "configdir",
2392
"use_dbus", "use_ipv6", "debuglevel", "restore",
2393
"statedir", "socket", "foreground"):
2869
2394
value = getattr(options, option)
2870
2395
if value is not None:
2871
2396
server_settings[option] = value
2872
2397
del options
2873
2398
# Force all strings to be unicode
2874
2399
for option in server_settings.keys():
2875
if isinstance(server_settings[option], bytes):
2876
server_settings[option] = (server_settings[option]
2877
.decode("utf-8"))
2400
if type(server_settings[option]) is str:
2401
server_settings[option] = unicode(server_settings[option])
2878
2402
# Force all boolean options to be boolean
2879
2403
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2880
"foreground", "zeroconf"):
2404
"foreground"):
2881
2405
server_settings[option] = bool(server_settings[option])
2882
2406
# Debug implies foreground
2883
2407
if server_settings["debug"]:
2886
2410
2887
2411
##################################################################
2888
2412
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
2894
2413
# For convenience
2895
2414
debug = server_settings["debug"]
2896
2415
debuglevel = server_settings["debuglevel"]
2899
2418
stored_state_path = os.path.join(server_settings["statedir"],
2900
2419
stored_state_file)
2901
2420
foreground = server_settings["foreground"]
2902
zeroconf = server_settings["zeroconf"]
2903
2421
2904
2422
if debug:
2905
2423
initlogger(debug, logging.DEBUG)
2911
2429
initlogger(debug, level)
2912
2430
2913
2431
if server_settings["servicename"] != "Mandos":
2914
syslogger.setFormatter(
2915
logging.Formatter('Mandos ({}) [%(process)d]:'
2916
' %(levelname)s: %(message)s'.format(
2917
server_settings["servicename"])))
2432
syslogger.setFormatter(logging.Formatter
2433
('Mandos ({0}) [%(process)d]:'
2434
' %(levelname)s: %(message)s'
2435
.format(server_settings
2436
["servicename"])))
2918
2437
2919
2438
# Parse config file with clients
2920
2439
client_config = configparser.SafeConfigParser(Client
2925
2444
global mandos_dbus_service
2926
2445
mandos_dbus_service = None
2927
2446
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)
2447
tcp_server = MandosServer((server_settings["address"],
2448
server_settings["port"]),
2449
ClientHandler,
2450
interface=(server_settings["interface"]
2451
or None),
2452
use_ipv6=use_ipv6,
2453
gnutls_priority=
2454
server_settings["priority"],
2455
use_dbus=use_dbus,
2456
socketfd=(server_settings["socket"]
2457
or None))
2939
2458
if not foreground:
2940
2459
pidfilename = "/run/mandos.pid"
2941
2460
if not os.path.isdir("/run/."):
2942
2461
pidfilename = "/var/run/mandos.pid"
2943
2462
pidfile = None
2944
2463
try:
2945
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2464
pidfile = open(pidfilename, "w")
2946
2465
except IOError as e:
2947
2466
logger.error("Could not open file %r", pidfilename,
2948
2467
exc_info=e)
2949
2468
2950
for name, group in (("_mandos", "_mandos"),
2951
("mandos", "mandos"),
2952
("nobody", "nogroup")):
2469
for name in ("_mandos", "mandos", "nobody"):
2953
2470
try:
2954
2471
uid = pwd.getpwnam(name).pw_uid
2955
gid = pwd.getpwnam(group).pw_gid
2472
gid = pwd.getpwnam(name).pw_gid
2956
2473
break
2957
2474
except KeyError:
2958
2475
continue
2962
2479
try:
2963
2480
os.setgid(gid)
2964
2481
os.setuid(uid)
2965
if debug:
2966
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2967
gid))
2968
2482
except OSError as error:
2969
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2970
.format(uid, gid, os.strerror(error.errno)))
2971
2483
if error.errno != errno.EPERM:
2972
raise
2484
raise error
2973
2485
2974
2486
if debug:
2975
2487
# Enable all possible GnuTLS debugging
2976
2488
2977
2489
# "Use a log level over 10 to enable all debugging options."
2978
2490
# - GnuTLS manual
2979
gnutls.global_set_log_level(11)
2491
gnutls.library.functions.gnutls_global_set_log_level(11)
2980
2492
2981
@gnutls.log_func
2493
@gnutls.library.types.gnutls_log_func
2982
2494
def debug_gnutls(level, string):
2983
2495
logger.debug("GnuTLS: %s", string[:-1])
2984
2496
2985
gnutls.global_set_log_function(debug_gnutls)
2497
(gnutls.library.functions
2498
.gnutls_global_set_log_function(debug_gnutls))
2986
2499
2987
2500
# Redirect stdin so all checkers get /dev/null
2988
2501
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2995
2508
# Close all input and output, do double fork, etc.
2996
2509
daemon()
2997
2510
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()
2511
# multiprocessing will use threads, so before we use gobject we
2512
# need to inform gobject that threads will be used.
2513
gobject.threads_init()
3001
2514
3002
2515
global main_loop
3003
2516
# From the Avahi example code
3004
2517
DBusGMainLoop(set_as_default=True)
3005
main_loop = GObject.MainLoop()
2518
main_loop = gobject.MainLoop()
3006
2519
bus = dbus.SystemBus()
3007
2520
# End of Avahi example code
3008
2521
if use_dbus:
3009
2522
try:
3010
2523
bus_name = dbus.service.BusName("se.recompile.Mandos",
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:
2524
bus, do_not_queue=True)
2525
old_bus_name = (dbus.service.BusName
2526
("se.bsnet.fukt.Mandos", bus,
2527
do_not_queue=True))
2528
except dbus.exceptions.NameExistsException as e:
3017
2529
logger.error("Disabling D-Bus:", exc_info=e)
3018
2530
use_dbus = False
3019
2531
server_settings["use_dbus"] = False
3020
2532
tcp_server.use_dbus = False
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"))
2533
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2534
service = AvahiServiceToSyslog(name =
2535
server_settings["servicename"],
2536
servicetype = "_mandos._tcp",
2537
protocol = protocol, bus = bus)
2538
if server_settings["interface"]:
2539
service.interface = (if_nametoindex
2540
(str(server_settings["interface"])))
3031
2541
3032
2542
global multiprocessing_manager
3033
2543
multiprocessing_manager = multiprocessing.Manager()
3052
2562
if server_settings["restore"]:
3053
2563
try:
3054
2564
with open(stored_state_path, "rb") as 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
for key in clients_data:
3070
value = { (k.decode("utf-8")
3071
if isinstance(k, bytes) else k): v
3072
for k, v in
3073
clients_data[key].items() }
3074
clients_data[key] = value
3075
# .client_structure
3076
value["client_structure"] = [
3077
(s.decode("utf-8")
3078
if isinstance(s, bytes)
3079
else s) for s in
3080
value["client_structure"] ]
3081
# .name & .host
3082
for k in ("name", "host"):
3083
if isinstance(value[k], bytes):
3084
value[k] = value[k].decode("utf-8")
3085
## old_client_settings
3086
# .keys
3087
old_client_settings = {
3088
(key.decode("utf-8")
3089
if isinstance(key, bytes)
3090
else key): value
3091
for key, value in
3092
bytes_old_client_settings.items() }
3093
# .host
3094
for value in old_client_settings.values():
3095
value["host"] = value["host"].decode("utf-8")
2565
clients_data, old_client_settings = (pickle.load
2566
(stored_state))
3096
2567
os.remove(stored_state_path)
3097
2568
except IOError as e:
3098
2569
if e.errno == errno.ENOENT:
3099
logger.warning("Could not load persistent state:"
3100
" {}".format(os.strerror(e.errno)))
2570
logger.warning("Could not load persistent state: {0}"
2571
.format(os.strerror(e.errno)))
3101
2572
else:
3102
2573
logger.critical("Could not load persistent state:",
3103
2574
exc_info=e)
3104
2575
raise
3105
2576
except EOFError as e:
3106
2577
logger.warning("Could not load persistent state: "
3107
"EOFError:",
3108
exc_info=e)
2578
"EOFError:", exc_info=e)
3109
2579
3110
2580
with PGPEngine() as pgp:
3111
for client_name, client in clients_data.items():
2581
for client_name, client in clients_data.iteritems():
3112
2582
# Skip removed clients
3113
2583
if client_name not in client_settings:
3114
2584
continue
3123
2593
# For each value in new config, check if it
3124
2594
# differs from the old config value (Except for
3125
2595
# the "secret" attribute)
3126
if (name != "secret"
3127
and (value !=
3128
old_client_settings[client_name][name])):
2596
if (name != "secret" and
2597
value != old_client_settings[client_name]
2598
[name]):
3129
2599
client[name] = value
3130
2600
except KeyError:
3131
2601
pass
3132
2602
3133
2603
# Clients who has passed its expire date can still be
3134
# enabled if its last checker was successful. A Client
2604
# enabled if its last checker was successful. Clients
3135
2605
# whose checker succeeded before we stored its state is
3136
2606
# assumed to have successfully run all checkers during
3137
2607
# downtime.
3139
2609
if datetime.datetime.utcnow() >= client["expires"]:
3140
2610
if not client["last_checked_ok"]:
3141
2611
logger.warning(
3142
"disabling client {} - Client never "
3143
"performed a successful checker".format(
3144
client_name))
2612
"disabling client {0} - Client never "
2613
"performed a successful checker"
2614
.format(client_name))
3145
2615
client["enabled"] = False
3146
2616
elif client["last_checker_status"] != 0:
3147
2617
logger.warning(
3148
"disabling client {} - Client last"
3149
" checker failed with error code"
3150
" {}".format(
3151
client_name,
3152
client["last_checker_status"]))
2618
"disabling client {0} - Client "
2619
"last checker failed with error code {1}"
2620
.format(client_name,
2621
client["last_checker_status"]))
3153
2622
client["enabled"] = False
3154
2623
else:
3155
client["expires"] = (
3156
datetime.datetime.utcnow()
3157
+ client["timeout"])
2624
client["expires"] = (datetime.datetime
2625
.utcnow()
2626
+ client["timeout"])
3158
2627
logger.debug("Last checker succeeded,"
3159
" keeping {} enabled".format(
3160
client_name))
2628
" keeping {0} enabled"
2629
.format(client_name))
3161
2630
try:
3162
client["secret"] = pgp.decrypt(
3163
client["encrypted_secret"],
3164
client_settings[client_name]["secret"])
2631
client["secret"] = (
2632
pgp.decrypt(client["encrypted_secret"],
2633
client_settings[client_name]
2634
["secret"]))
3165
2635
except PGPError:
3166
2636
# If decryption fails, we use secret from new settings
3167
logger.debug("Failed to decrypt {} old secret".format(
3168
client_name))
3169
client["secret"] = (client_settings[client_name]
3170
["secret"])
2637
logger.debug("Failed to decrypt {0} old secret"
2638
.format(client_name))
2639
client["secret"] = (
2640
client_settings[client_name]["secret"])
3171
2641
3172
2642
# Add/remove clients based on new changes made to config
3173
2643
for client_name in (set(old_client_settings)
3178
2648
clients_data[client_name] = client_settings[client_name]
3179
2649
3180
2650
# Create all client objects
3181
for client_name, client in clients_data.items():
2651
for client_name, client in clients_data.iteritems():
3182
2652
tcp_server.clients[client_name] = client_class(
3183
name = client_name,
3184
settings = client,
2653
name = client_name, settings = client,
3185
2654
server_settings = server_settings)
3186
2655
3187
2656
if not tcp_server.clients:
3189
2658
3190
2659
if not foreground:
3191
2660
if pidfile is not None:
3192
pid = os.getpid()
3193
2661
try:
3194
2662
with pidfile:
3195
print(pid, file=pidfile)
2663
pid = os.getpid()
2664
pidfile.write(str(pid) + "\n".encode("utf-8"))
3196
2665
except IOError:
3197
2666
logger.error("Could not write to file %r with PID %d",
3198
2667
pidfilename, pid)
3203
2672
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3204
2673
3205
2674
if use_dbus:
3206
3207
@alternate_dbus_interfaces(
3208
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3209
class MandosDBusService(DBusObjectWithObjectManager):
2675
@alternate_dbus_interfaces({"se.recompile.Mandos":
2676
"se.bsnet.fukt.Mandos"})
2677
class MandosDBusService(DBusObjectWithProperties):
3210
2678
"""A D-Bus proxy object"""
3211
3212
2679
def __init__(self):
3213
2680
dbus.service.Object.__init__(self, bus, "/")
3214
3215
2681
_interface = "se.recompile.Mandos"
3216
2682
2683
@dbus_interface_annotations(_interface)
2684
def _foo(self):
2685
return { "org.freedesktop.DBus.Property"
2686
".EmitsChangedSignal":
2687
"false"}
2688
3217
2689
@dbus.service.signal(_interface, signature="o")
3218
2690
def ClientAdded(self, objpath):
3219
2691
"D-Bus signal"
3224
2696
"D-Bus signal"
3225
2697
pass
3226
2698
3227
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3228
"true"})
3229
2699
@dbus.service.signal(_interface, signature="os")
3230
2700
def ClientRemoved(self, objpath, name):
3231
2701
"D-Bus signal"
3232
2702
pass
3233
2703
3234
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3235
"true"})
3236
2704
@dbus.service.method(_interface, out_signature="ao")
3237
2705
def GetAllClients(self):
3238
2706
"D-Bus method"
3239
return dbus.Array(c.dbus_object_path for c in
3240
tcp_server.clients.values())
2707
return dbus.Array(c.dbus_object_path
2708
for c in
2709
tcp_server.clients.itervalues())
3241
2710
3242
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3243
"true"})
3244
2711
@dbus.service.method(_interface,
3245
2712
out_signature="a{oa{sv}}")
3246
2713
def GetAllClientsWithProperties(self):
3247
2714
"D-Bus method"
3248
2715
return dbus.Dictionary(
3249
{ c.dbus_object_path: c.GetAll(
3250
"se.recompile.Mandos.Client")
3251
for c in tcp_server.clients.values() },
2716
((c.dbus_object_path, c.GetAll(""))
2717
for c in tcp_server.clients.itervalues()),
3252
2718
signature="oa{sv}")
3253
2719
3254
2720
@dbus.service.method(_interface, in_signature="o")
3255
2721
def RemoveClient(self, object_path):
3256
2722
"D-Bus method"
3257
for c in tcp_server.clients.values():
2723
for c in tcp_server.clients.itervalues():
3258
2724
if c.dbus_object_path == object_path:
3259
2725
del tcp_server.clients[c.name]
3260
2726
c.remove_from_connection()
3261
# Don't signal the disabling
2727
# Don't signal anything except ClientRemoved
3262
2728
c.disable(quiet=True)
3263
# Emit D-Bus signal for removal
3264
self.client_removed_signal(c)
2729
# Emit D-Bus signal
2730
self.ClientRemoved(object_path, c.name)
3265
2731
return
3266
2732
raise KeyError(object_path)
3267
2733
3268
2734
del _interface
3269
3270
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3271
out_signature = "a{oa{sa{sv}}}")
3272
def GetManagedObjects(self):
3273
"""D-Bus method"""
3274
return dbus.Dictionary(
3275
{ client.dbus_object_path:
3276
dbus.Dictionary(
3277
{ interface: client.GetAll(interface)
3278
for interface in
3279
client._get_all_interface_names()})
3280
for client in tcp_server.clients.values()})
3281
3282
def client_added_signal(self, client):
3283
"""Send the new standard signal and the old signal"""
3284
if use_dbus:
3285
# New standard signal
3286
self.InterfacesAdded(
3287
client.dbus_object_path,
3288
dbus.Dictionary(
3289
{ interface: client.GetAll(interface)
3290
for interface in
3291
client._get_all_interface_names()}))
3292
# Old signal
3293
self.ClientAdded(client.dbus_object_path)
3294
3295
def client_removed_signal(self, client):
3296
"""Send the new standard signal and the old signal"""
3297
if use_dbus:
3298
# New standard signal
3299
self.InterfacesRemoved(
3300
client.dbus_object_path,
3301
client._get_all_interface_names())
3302
# Old signal
3303
self.ClientRemoved(client.dbus_object_path,
3304
client.name)
3305
2735
3306
2736
mandos_dbus_service = MandosDBusService()
3307
2737
3308
2738
def cleanup():
3309
2739
"Cleanup function; run on exit"
3310
if zeroconf:
3311
service.cleanup()
2740
service.cleanup()
3312
2741
3313
2742
multiprocessing.active_children()
3314
2743
wnull.close()
3320
2749
# removed/edited, old secret will thus be unrecovable.
3321
2750
clients = {}
3322
2751
with PGPEngine() as pgp:
3323
for client in tcp_server.clients.values():
2752
for client in tcp_server.clients.itervalues():
3324
2753
key = client_settings[client.name]["secret"]
3325
2754
client.encrypted_secret = pgp.encrypt(client.secret,
3326
2755
key)
3328
2757
3329
2758
# A list of attributes that can not be pickled
3330
2759
# + secret.
3331
exclude = { "bus", "changedstate", "secret",
3332
"checker", "server_settings" }
3333
for name, typ in inspect.getmembers(dbus.service
3334
.Object):
2760
exclude = set(("bus", "changedstate", "secret",
2761
"checker", "server_settings"))
2762
for name, typ in (inspect.getmembers
2763
(dbus.service.Object)):
3335
2764
exclude.add(name)
3336
2765
3337
2766
client_dict["encrypted_secret"] = (client
3344
2773
del client_settings[client.name]["secret"]
3345
2774
3346
2775
try:
3347
with tempfile.NamedTemporaryFile(
3348
mode='wb',
3349
suffix=".pickle",
3350
prefix='clients-',
3351
dir=os.path.dirname(stored_state_path),
3352
delete=False) as stored_state:
3353
pickle.dump((clients, client_settings), stored_state,
3354
protocol = 2)
3355
tempname = stored_state.name
2776
with (tempfile.NamedTemporaryFile
2777
(mode='wb', suffix=".pickle", prefix='clients-',
2778
dir=os.path.dirname(stored_state_path),
2779
delete=False)) as stored_state:
2780
pickle.dump((clients, client_settings), stored_state)
2781
tempname=stored_state.name
3356
2782
os.rename(tempname, stored_state_path)
3357
2783
except (IOError, OSError) as e:
3358
2784
if not debug:
3361
2787
except NameError:
3362
2788
pass
3363
2789
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3364
logger.warning("Could not save persistent state: {}"
2790
logger.warning("Could not save persistent state: {0}"
3365
2791
.format(os.strerror(e.errno)))
3366
2792
else:
3367
2793
logger.warning("Could not save persistent state:",
3368
2794
exc_info=e)
3369
raise
2795
raise e
3370
2796
3371
2797
# Delete all clients, and settings from config
3372
2798
while tcp_server.clients:
3373
2799
name, client = tcp_server.clients.popitem()
3374
2800
if use_dbus:
3375
2801
client.remove_from_connection()
3376
# Don't signal the disabling
2802
# Don't signal anything except ClientRemoved
3377
2803
client.disable(quiet=True)
3378
# Emit D-Bus signal for removal
3379
2804
if use_dbus:
3380
mandos_dbus_service.client_removed_signal(client)
2805
# Emit D-Bus signal
2806
mandos_dbus_service.ClientRemoved(client
2807
.dbus_object_path,
2808
client.name)
3381
2809
client_settings.clear()
3382
2810
3383
2811
atexit.register(cleanup)
3384
2812
3385
for client in tcp_server.clients.values():
2813
for client in tcp_server.clients.itervalues():
3386
2814
if use_dbus:
3387
# Emit D-Bus signal for adding
3388
mandos_dbus_service.client_added_signal(client)
2815
# Emit D-Bus signal
2816
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3389
2817
# Need to initiate checking of clients
3390
2818
if client.enabled:
3391
2819
client.init_checker()
3394
2822
tcp_server.server_activate()
3395
2823
3396
2824
# Find out what port we got
3397
if zeroconf:
3398
service.port = tcp_server.socket.getsockname()[1]
2825
service.port = tcp_server.socket.getsockname()[1]
3399
2826
if use_ipv6:
3400
2827
logger.info("Now listening on address %r, port %d,"
3401
2828
" flowinfo %d, scope_id %d",
3407
2834
#service.interface = tcp_server.socket.getsockname()[3]
3408
2835
3409
2836
try:
3410
if zeroconf:
3411
# From the Avahi example code
3412
try:
3413
service.activate()
3414
except dbus.exceptions.DBusException as error:
3415
logger.critical("D-Bus Exception", exc_info=error)
3416
cleanup()
3417
sys.exit(1)
3418
# End of Avahi example code
2837
# From the Avahi example code
2838
try:
2839
service.activate()
2840
except dbus.exceptions.DBusException as error:
2841
logger.critical("D-Bus Exception", exc_info=error)
2842
cleanup()
2843
sys.exit(1)
2844
# End of Avahi example code
3419
2845
3420
GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,
2846
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3421
2847
lambda *args, **kwargs:
3422
2848
(tcp_server.handle_request
3423
2849
(*args[2:], **kwargs) or True))
3436
2862
# Must run before the D-Bus bus name gets deregistered
3437
2863
cleanup()
3438
2864
3439
3440
2865
if __name__ == '__main__':
3441
2866
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0