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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
from gi.repository import GLib
75
import gobject
76
import avahi
83
77
from dbus.mainloop.glib import DBusGMainLoop
84
78
import ctypes
85
79
import ctypes.util
94
88
except ImportError:
95
89
SO_BINDTODEVICE = None
96
90
97
if sys.version_info.major == 2:
98
str = unicode
99
100
version = "1.7.6"
91
version = "1.6.2"
101
92
stored_state_file = "clients.pickle"
102
93
103
94
logger = logging.getLogger()
104
syslogger = None
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
105
98
106
99
try:
107
if_nametoindex = ctypes.cdll.LoadLibrary(
108
ctypes.util.find_library("c")).if_nametoindex
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
102
.if_nametoindex)
109
103
except (OSError, AttributeError):
110
111
104
def if_nametoindex(interface):
112
105
"Get an interface index the hard way, i.e. using fcntl()"
113
106
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
114
107
with contextlib.closing(socket.socket()) as s:
115
108
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
116
struct.pack(b"16s16x", interface))
117
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]
118
113
return interface_index
119
114
120
115
121
def copy_function(func):
122
"""Make a copy of a function"""
123
if sys.version_info.major == 2:
124
return types.FunctionType(func.func_code,
125
func.func_globals,
126
func.func_name,
127
func.func_defaults,
128
func.func_closure)
129
else:
130
return types.FunctionType(func.__code__,
131
func.__globals__,
132
func.__name__,
133
func.__defaults__,
134
func.__closure__)
135
136
137
116
def initlogger(debug, level=logging.WARNING):
138
117
"""init logger and add loglevel"""
139
118
140
global syslogger
141
syslogger = (logging.handlers.SysLogHandler(
142
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
143
address = "/dev/log"))
144
119
syslogger.setFormatter(logging.Formatter
145
120
('Mandos [%(process)d]: %(levelname)s:'
146
121
' %(message)s'))
163
138
164
139
class PGPEngine(object):
165
140
"""A simple class for OpenPGP symmetric encryption & decryption"""
166
167
141
def __init__(self):
168
142
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
169
self.gpg = "gpg"
170
try:
171
output = subprocess.check_output(["gpgconf"])
172
for line in output.splitlines():
173
name, text, path = line.split(b":")
174
if name == "gpg":
175
self.gpg = path
176
break
177
except OSError as e:
178
if e.errno != errno.ENOENT:
179
raise
180
143
self.gnupgargs = ['--batch',
181
'--homedir', self.tempdir,
144
'--home', self.tempdir,
182
145
'--force-mdc',
183
146
'--quiet',
184
147
'--no-use-agent']
219
182
220
183
def encrypt(self, data, password):
221
184
passphrase = self.password_encode(password)
222
with tempfile.NamedTemporaryFile(
223
dir=self.tempdir) as passfile:
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
186
) as passfile:
224
187
passfile.write(passphrase)
225
188
passfile.flush()
226
proc = subprocess.Popen([self.gpg, '--symmetric',
189
proc = subprocess.Popen(['gpg', '--symmetric',
227
190
'--passphrase-file',
228
191
passfile.name]
229
192
+ self.gnupgargs,
237
200
238
201
def decrypt(self, data, password):
239
202
passphrase = self.password_encode(password)
240
with tempfile.NamedTemporaryFile(
241
dir = self.tempdir) as passfile:
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
204
) as passfile:
242
205
passfile.write(passphrase)
243
206
passfile.flush()
244
proc = subprocess.Popen([self.gpg, '--decrypt',
207
proc = subprocess.Popen(['gpg', '--decrypt',
245
208
'--passphrase-file',
246
209
passfile.name]
247
210
+ self.gnupgargs,
248
211
stdin = subprocess.PIPE,
249
212
stdout = subprocess.PIPE,
250
213
stderr = subprocess.PIPE)
251
decrypted_plaintext, err = proc.communicate(input = data)
214
decrypted_plaintext, err = proc.communicate(input
215
= data)
252
216
if proc.returncode != 0:
253
217
raise PGPError(err)
254
218
return decrypted_plaintext
255
219
256
# Pretend that we have an Avahi module
257
class Avahi(object):
258
"""This isn't so much a class as it is a module-like namespace.
259
It is instantiated once, and simulates having an Avahi module."""
260
IF_UNSPEC = -1 # avahi-common/address.h
261
PROTO_UNSPEC = -1 # avahi-common/address.h
262
PROTO_INET = 0 # avahi-common/address.h
263
PROTO_INET6 = 1 # avahi-common/address.h
264
DBUS_NAME = "org.freedesktop.Avahi"
265
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
266
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
267
DBUS_PATH_SERVER = "/"
268
def string_array_to_txt_array(self, t):
269
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
270
for s in t), signature="ay")
271
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
272
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
273
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
274
SERVER_INVALID = 0 # avahi-common/defs.h
275
SERVER_REGISTERING = 1 # avahi-common/defs.h
276
SERVER_RUNNING = 2 # avahi-common/defs.h
277
SERVER_COLLISION = 3 # avahi-common/defs.h
278
SERVER_FAILURE = 4 # avahi-common/defs.h
279
avahi = Avahi()
280
220
281
221
class AvahiError(Exception):
282
222
def __init__(self, value, *args, **kwargs):
283
223
self.value = value
284
return super(AvahiError, self).__init__(value, *args,
285
**kwargs)
286
224
super(AvahiError, self).__init__(value, *args, **kwargs)
225
def __unicode__(self):
226
return unicode(repr(self.value))
287
227
288
228
class AvahiServiceError(AvahiError):
289
229
pass
290
230
291
292
231
class AvahiGroupError(AvahiError):
293
232
pass
294
233
314
253
bus: dbus.SystemBus()
315
254
"""
316
255
317
def __init__(self,
318
interface = avahi.IF_UNSPEC,
319
name = None,
320
servicetype = None,
321
port = None,
322
TXT = None,
323
domain = "",
324
host = "",
325
max_renames = 32768,
326
protocol = avahi.PROTO_UNSPEC,
327
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):
328
260
self.interface = interface
329
261
self.name = name
330
262
self.type = servicetype
340
272
self.bus = bus
341
273
self.entry_group_state_changed_match = None
342
274
343
def rename(self, remove=True):
275
def rename(self):
344
276
"""Derived from the Avahi example code"""
345
277
if self.rename_count >= self.max_renames:
346
278
logger.critical("No suitable Zeroconf service name found"
347
279
" after %i retries, exiting.",
348
280
self.rename_count)
349
281
raise AvahiServiceError("Too many renames")
350
self.name = str(
351
self.server.GetAlternativeServiceName(self.name))
352
self.rename_count += 1
282
self.name = unicode(self.server
283
.GetAlternativeServiceName(self.name))
353
284
logger.info("Changing Zeroconf service name to %r ...",
354
285
self.name)
355
if remove:
356
self.remove()
286
self.remove()
357
287
try:
358
288
self.add()
359
289
except dbus.exceptions.DBusException as error:
360
if (error.get_dbus_name()
361
== "org.freedesktop.Avahi.CollisionError"):
362
logger.info("Local Zeroconf service name collision.")
363
return self.rename(remove=False)
364
else:
365
logger.critical("D-Bus Exception", exc_info=error)
366
self.cleanup()
367
os._exit(1)
290
logger.critical("D-Bus Exception", exc_info=error)
291
self.cleanup()
292
os._exit(1)
293
self.rename_count += 1
368
294
369
295
def remove(self):
370
296
"""Derived from the Avahi example code"""
408
334
self.rename()
409
335
elif state == avahi.ENTRY_GROUP_FAILURE:
410
336
logger.critical("Avahi: Error in group state changed %s",
411
str(error))
412
raise AvahiGroupError("State changed: {!s}".format(error))
337
unicode(error))
338
raise AvahiGroupError("State changed: {0!s}"
339
.format(error))
413
340
414
341
def cleanup(self):
415
342
"""Derived from the Avahi example code"""
425
352
def server_state_changed(self, state, error=None):
426
353
"""Derived from the Avahi example code"""
427
354
logger.debug("Avahi server state change: %i", state)
428
bad_states = {
429
avahi.SERVER_INVALID: "Zeroconf server invalid",
430
avahi.SERVER_REGISTERING: None,
431
avahi.SERVER_COLLISION: "Zeroconf server name collision",
432
avahi.SERVER_FAILURE: "Zeroconf server failure",
433
}
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" }
434
362
if state in bad_states:
435
363
if bad_states[state] is not None:
436
364
if error is None:
439
367
logger.error(bad_states[state] + ": %r", error)
440
368
self.cleanup()
441
369
elif state == avahi.SERVER_RUNNING:
442
try:
443
self.add()
444
except dbus.exceptions.DBusException as error:
445
if (error.get_dbus_name()
446
== "org.freedesktop.Avahi.CollisionError"):
447
logger.info("Local Zeroconf service name"
448
" collision.")
449
return self.rename(remove=False)
450
else:
451
logger.critical("D-Bus Exception", exc_info=error)
452
self.cleanup()
453
os._exit(1)
370
self.add()
454
371
else:
455
372
if error is None:
456
373
logger.debug("Unknown state: %r", state)
466
383
follow_name_owner_changes=True),
467
384
avahi.DBUS_INTERFACE_SERVER)
468
385
self.server.connect_to_signal("StateChanged",
469
self.server_state_changed)
386
self.server_state_changed)
470
387
self.server_state_changed(self.server.GetState())
471
388
472
389
473
390
class AvahiServiceToSyslog(AvahiService):
474
def rename(self, *args, **kwargs):
391
def rename(self):
475
392
"""Add the new name to the syslog messages"""
476
ret = AvahiService.rename(self, *args, **kwargs)
477
syslogger.setFormatter(logging.Formatter(
478
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
479
.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)))
480
398
return ret
481
399
482
# Pretend that we have a GnuTLS module
483
class GnuTLS(object):
484
"""This isn't so much a class as it is a module-like namespace.
485
It is instantiated once, and simulates having a GnuTLS module."""
486
487
_library = ctypes.cdll.LoadLibrary(
488
ctypes.util.find_library("gnutls"))
489
_need_version = b"3.3.0"
490
def __init__(self):
491
# Need to use class name "GnuTLS" here, since this method is
492
# called before the assignment to the "gnutls" global variable
493
# happens.
494
if GnuTLS.check_version(self._need_version) is None:
495
raise GnuTLS.Error("Needs GnuTLS {} or later"
496
.format(self._need_version))
497
498
# Unless otherwise indicated, the constants and types below are
499
# all from the gnutls/gnutls.h C header file.
500
501
# Constants
502
E_SUCCESS = 0
503
E_INTERRUPTED = -52
504
E_AGAIN = -28
505
CRT_OPENPGP = 2
506
CLIENT = 2
507
SHUT_RDWR = 0
508
CRD_CERTIFICATE = 1
509
E_NO_CERTIFICATE_FOUND = -49
510
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
511
512
# Types
513
class session_int(ctypes.Structure):
514
_fields_ = []
515
session_t = ctypes.POINTER(session_int)
516
class certificate_credentials_st(ctypes.Structure):
517
_fields_ = []
518
certificate_credentials_t = ctypes.POINTER(
519
certificate_credentials_st)
520
certificate_type_t = ctypes.c_int
521
class datum_t(ctypes.Structure):
522
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
523
('size', ctypes.c_uint)]
524
class openpgp_crt_int(ctypes.Structure):
525
_fields_ = []
526
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
527
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
528
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
529
credentials_type_t = ctypes.c_int
530
transport_ptr_t = ctypes.c_void_p
531
close_request_t = ctypes.c_int
532
533
# Exceptions
534
class Error(Exception):
535
# We need to use the class name "GnuTLS" here, since this
536
# exception might be raised from within GnuTLS.__init__,
537
# which is called before the assignment to the "gnutls"
538
# global variable has happened.
539
def __init__(self, message = None, code = None, args=()):
540
# Default usage is by a message string, but if a return
541
# code is passed, convert it to a string with
542
# gnutls.strerror()
543
self.code = code
544
if message is None and code is not None:
545
message = GnuTLS.strerror(code)
546
return super(GnuTLS.Error, self).__init__(
547
message, *args)
548
549
class CertificateSecurityError(Error):
550
pass
551
552
# Classes
553
class Credentials(object):
554
def __init__(self):
555
self._c_object = gnutls.certificate_credentials_t()
556
gnutls.certificate_allocate_credentials(
557
ctypes.byref(self._c_object))
558
self.type = gnutls.CRD_CERTIFICATE
559
560
def __del__(self):
561
gnutls.certificate_free_credentials(self._c_object)
562
563
class ClientSession(object):
564
def __init__(self, socket, credentials = None):
565
self._c_object = gnutls.session_t()
566
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
567
gnutls.set_default_priority(self._c_object)
568
gnutls.transport_set_ptr(self._c_object, socket.fileno())
569
gnutls.handshake_set_private_extensions(self._c_object,
570
True)
571
self.socket = socket
572
if credentials is None:
573
credentials = gnutls.Credentials()
574
gnutls.credentials_set(self._c_object, credentials.type,
575
ctypes.cast(credentials._c_object,
576
ctypes.c_void_p))
577
self.credentials = credentials
578
579
def __del__(self):
580
gnutls.deinit(self._c_object)
581
582
def handshake(self):
583
return gnutls.handshake(self._c_object)
584
585
def send(self, data):
586
data = bytes(data)
587
data_len = len(data)
588
while data_len > 0:
589
data_len -= gnutls.record_send(self._c_object,
590
data[-data_len:],
591
data_len)
592
593
def bye(self):
594
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
595
596
# Error handling functions
597
def _error_code(result):
598
"""A function to raise exceptions on errors, suitable
599
for the 'restype' attribute on ctypes functions"""
600
if result >= 0:
601
return result
602
if result == gnutls.E_NO_CERTIFICATE_FOUND:
603
raise gnutls.CertificateSecurityError(code = result)
604
raise gnutls.Error(code = result)
605
606
def _retry_on_error(result, func, arguments):
607
"""A function to retry on some errors, suitable
608
for the 'errcheck' attribute on ctypes functions"""
609
while result < 0:
610
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
611
return _error_code(result)
612
result = func(*arguments)
613
return result
614
615
# Unless otherwise indicated, the function declarations below are
616
# all from the gnutls/gnutls.h C header file.
617
618
# Functions
619
priority_set_direct = _library.gnutls_priority_set_direct
620
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
621
ctypes.POINTER(ctypes.c_char_p)]
622
priority_set_direct.restype = _error_code
623
624
init = _library.gnutls_init
625
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
626
init.restype = _error_code
627
628
set_default_priority = _library.gnutls_set_default_priority
629
set_default_priority.argtypes = [session_t]
630
set_default_priority.restype = _error_code
631
632
record_send = _library.gnutls_record_send
633
record_send.argtypes = [session_t, ctypes.c_void_p,
634
ctypes.c_size_t]
635
record_send.restype = ctypes.c_ssize_t
636
record_send.errcheck = _retry_on_error
637
638
certificate_allocate_credentials = (
639
_library.gnutls_certificate_allocate_credentials)
640
certificate_allocate_credentials.argtypes = [
641
ctypes.POINTER(certificate_credentials_t)]
642
certificate_allocate_credentials.restype = _error_code
643
644
certificate_free_credentials = (
645
_library.gnutls_certificate_free_credentials)
646
certificate_free_credentials.argtypes = [certificate_credentials_t]
647
certificate_free_credentials.restype = None
648
649
handshake_set_private_extensions = (
650
_library.gnutls_handshake_set_private_extensions)
651
handshake_set_private_extensions.argtypes = [session_t,
652
ctypes.c_int]
653
handshake_set_private_extensions.restype = None
654
655
credentials_set = _library.gnutls_credentials_set
656
credentials_set.argtypes = [session_t, credentials_type_t,
657
ctypes.c_void_p]
658
credentials_set.restype = _error_code
659
660
strerror = _library.gnutls_strerror
661
strerror.argtypes = [ctypes.c_int]
662
strerror.restype = ctypes.c_char_p
663
664
certificate_type_get = _library.gnutls_certificate_type_get
665
certificate_type_get.argtypes = [session_t]
666
certificate_type_get.restype = _error_code
667
668
certificate_get_peers = _library.gnutls_certificate_get_peers
669
certificate_get_peers.argtypes = [session_t,
670
ctypes.POINTER(ctypes.c_uint)]
671
certificate_get_peers.restype = ctypes.POINTER(datum_t)
672
673
global_set_log_level = _library.gnutls_global_set_log_level
674
global_set_log_level.argtypes = [ctypes.c_int]
675
global_set_log_level.restype = None
676
677
global_set_log_function = _library.gnutls_global_set_log_function
678
global_set_log_function.argtypes = [log_func]
679
global_set_log_function.restype = None
680
681
deinit = _library.gnutls_deinit
682
deinit.argtypes = [session_t]
683
deinit.restype = None
684
685
handshake = _library.gnutls_handshake
686
handshake.argtypes = [session_t]
687
handshake.restype = _error_code
688
handshake.errcheck = _retry_on_error
689
690
transport_set_ptr = _library.gnutls_transport_set_ptr
691
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
692
transport_set_ptr.restype = None
693
694
bye = _library.gnutls_bye
695
bye.argtypes = [session_t, close_request_t]
696
bye.restype = _error_code
697
bye.errcheck = _retry_on_error
698
699
check_version = _library.gnutls_check_version
700
check_version.argtypes = [ctypes.c_char_p]
701
check_version.restype = ctypes.c_char_p
702
703
# All the function declarations below are from gnutls/openpgp.h
704
705
openpgp_crt_init = _library.gnutls_openpgp_crt_init
706
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
707
openpgp_crt_init.restype = _error_code
708
709
openpgp_crt_import = _library.gnutls_openpgp_crt_import
710
openpgp_crt_import.argtypes = [openpgp_crt_t,
711
ctypes.POINTER(datum_t),
712
openpgp_crt_fmt_t]
713
openpgp_crt_import.restype = _error_code
714
715
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
716
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
717
ctypes.POINTER(ctypes.c_uint)]
718
openpgp_crt_verify_self.restype = _error_code
719
720
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
721
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
722
openpgp_crt_deinit.restype = None
723
724
openpgp_crt_get_fingerprint = (
725
_library.gnutls_openpgp_crt_get_fingerprint)
726
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
727
ctypes.c_void_p,
728
ctypes.POINTER(
729
ctypes.c_size_t)]
730
openpgp_crt_get_fingerprint.restype = _error_code
731
732
# Remove non-public functions
733
del _error_code, _retry_on_error
734
# Create the global "gnutls" object, simulating a module
735
gnutls = GnuTLS()
736
737
def call_pipe(connection, # : multiprocessing.Connection
738
func, *args, **kwargs):
739
"""This function is meant to be called by multiprocessing.Process
740
741
This function runs func(*args, **kwargs), and writes the resulting
742
return value on the provided multiprocessing.Connection.
743
"""
744
connection.send(func(*args, **kwargs))
745
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
746
407
747
408
class Client(object):
748
409
"""A representation of a client host served by this server.
754
415
checker: subprocess.Popen(); a running checker process used
755
416
to see if the client lives.
756
417
'None' if no process is running.
757
checker_callback_tag: a GLib event source tag, or None
418
checker_callback_tag: a gobject event source tag, or None
758
419
checker_command: string; External command which is run to check
759
420
if client lives. %() expansions are done at
760
421
runtime with vars(self) as dict, so that for
761
422
instance %(name)s can be used in the command.
762
checker_initiator_tag: a GLib event source tag, or None
423
checker_initiator_tag: a gobject event source tag, or None
763
424
created: datetime.datetime(); (UTC) object creation
764
425
client_structure: Object describing what attributes a client has
765
426
and is used for storing the client at exit
766
427
current_checker_command: string; current running checker_command
767
disable_initiator_tag: a GLib event source tag, or None
428
disable_initiator_tag: a gobject event source tag, or None
768
429
enabled: bool()
769
430
fingerprint: string (40 or 32 hexadecimal digits); used to
770
431
uniquely identify the client
775
436
last_checker_status: integer between 0 and 255 reflecting exit
776
437
status of last checker. -1 reflects crashed
777
438
checker, -2 means no checker completed yet.
778
last_checker_signal: The signal which killed the last checker, if
779
last_checker_status is -1
780
439
last_enabled: datetime.datetime(); (UTC) or None
781
440
name: string; from the config file, used in log messages and
782
441
D-Bus identifiers
795
454
"fingerprint", "host", "interval",
796
455
"last_approval_request", "last_checked_ok",
797
456
"last_enabled", "name", "timeout")
798
client_defaults = {
799
"timeout": "PT5M",
800
"extended_timeout": "PT15M",
801
"interval": "PT2M",
802
"checker": "fping -q -- %%(host)s",
803
"host": "",
804
"approval_delay": "PT0S",
805
"approval_duration": "PT1S",
806
"approved_by_default": "True",
807
"enabled": "True",
808
}
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)
809
482
810
483
@staticmethod
811
484
def config_parser(config):
827
500
client["enabled"] = config.getboolean(client_name,
828
501
"enabled")
829
502
830
# Uppercase and remove spaces from fingerprint for later
831
# comparison purposes with return value from the
832
# fingerprint() function
833
503
client["fingerprint"] = (section["fingerprint"].upper()
834
504
.replace(" ", ""))
835
505
if "secret" in section:
836
client["secret"] = codecs.decode(section["secret"]
837
.encode("utf-8"),
838
"base64")
506
client["secret"] = section["secret"].decode("base64")
839
507
elif "secfile" in section:
840
508
with open(os.path.expanduser(os.path.expandvars
841
509
(section["secfile"])),
842
510
"rb") as secfile:
843
511
client["secret"] = secfile.read()
844
512
else:
845
raise TypeError("No secret or secfile for section {}"
513
raise TypeError("No secret or secfile for section {0}"
846
514
.format(section))
847
515
client["timeout"] = string_to_delta(section["timeout"])
848
516
client["extended_timeout"] = string_to_delta(
865
533
server_settings = {}
866
534
self.server_settings = server_settings
867
535
# adding all client settings
868
for setting, value in settings.items():
536
for setting, value in settings.iteritems():
869
537
setattr(self, setting, value)
870
538
871
539
if self.enabled:
879
547
self.expires = None
880
548
881
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
882
553
logger.debug(" Fingerprint: %s", self.fingerprint)
883
554
self.created = settings.get("created",
884
555
datetime.datetime.utcnow())
891
562
self.current_checker_command = None
892
563
self.approved = None
893
564
self.approvals_pending = 0
894
self.changedstate = multiprocessing_manager.Condition(
895
multiprocessing_manager.Lock())
896
self.client_structure = [attr
897
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()
898
570
if not attr.startswith("_")]
899
571
self.client_structure.append("client_structure")
900
572
901
for name, t in inspect.getmembers(
902
type(self), lambda obj: isinstance(obj, property)):
573
for name, t in inspect.getmembers(type(self),
574
lambda obj:
575
isinstance(obj,
576
property)):
903
577
if not name.startswith("_"):
904
578
self.client_structure.append(name)
905
579
926
600
if not quiet:
927
601
logger.info("Disabling client %s", self.name)
928
602
if getattr(self, "disable_initiator_tag", None) is not None:
929
GLib.source_remove(self.disable_initiator_tag)
603
gobject.source_remove(self.disable_initiator_tag)
930
604
self.disable_initiator_tag = None
931
605
self.expires = None
932
606
if getattr(self, "checker_initiator_tag", None) is not None:
933
GLib.source_remove(self.checker_initiator_tag)
607
gobject.source_remove(self.checker_initiator_tag)
934
608
self.checker_initiator_tag = None
935
609
self.stop_checker()
936
610
self.enabled = False
937
611
if not quiet:
938
612
self.send_changedstate()
939
# Do not run this again if called by a GLib.timeout_add
613
# Do not run this again if called by a gobject.timeout_add
940
614
return False
941
615
942
616
def __del__(self):
946
620
# Schedule a new checker to be started an 'interval' from now,
947
621
# and every interval from then on.
948
622
if self.checker_initiator_tag is not None:
949
GLib.source_remove(self.checker_initiator_tag)
950
self.checker_initiator_tag = GLib.timeout_add(
951
int(self.interval.total_seconds() * 1000),
952
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))
953
627
# Schedule a disable() when 'timeout' has passed
954
628
if self.disable_initiator_tag is not None:
955
GLib.source_remove(self.disable_initiator_tag)
956
self.disable_initiator_tag = GLib.timeout_add(
957
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))
958
633
# Also start a new checker *right now*.
959
634
self.start_checker()
960
635
961
def checker_callback(self, source, condition, connection,
962
command):
636
def checker_callback(self, pid, condition, command):
963
637
"""The checker has completed, so take appropriate actions."""
964
638
self.checker_callback_tag = None
965
639
self.checker = None
966
# Read return code from connection (see call_pipe)
967
returncode = connection.recv()
968
connection.close()
969
970
if returncode >= 0:
971
self.last_checker_status = returncode
972
self.last_checker_signal = None
640
if os.WIFEXITED(condition):
641
self.last_checker_status = os.WEXITSTATUS(condition)
973
642
if self.last_checker_status == 0:
974
643
logger.info("Checker for %(name)s succeeded",
975
644
vars(self))
976
645
self.checked_ok()
977
646
else:
978
logger.info("Checker for %(name)s failed", vars(self))
647
logger.info("Checker for %(name)s failed",
648
vars(self))
979
649
else:
980
650
self.last_checker_status = -1
981
self.last_checker_signal = -returncode
982
651
logger.warning("Checker for %(name)s crashed?",
983
652
vars(self))
984
return False
985
653
986
654
def checked_ok(self):
987
655
"""Assert that the client has been seen, alive and well."""
988
656
self.last_checked_ok = datetime.datetime.utcnow()
989
657
self.last_checker_status = 0
990
self.last_checker_signal = None
991
658
self.bump_timeout()
992
659
993
660
def bump_timeout(self, timeout=None):
995
662
if timeout is None:
996
663
timeout = self.timeout
997
664
if self.disable_initiator_tag is not None:
998
GLib.source_remove(self.disable_initiator_tag)
665
gobject.source_remove(self.disable_initiator_tag)
999
666
self.disable_initiator_tag = None
1000
667
if getattr(self, "enabled", False):
1001
self.disable_initiator_tag = GLib.timeout_add(
1002
int(timeout.total_seconds() * 1000), self.disable)
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
1003
671
self.expires = datetime.datetime.utcnow() + timeout
1004
672
1005
673
def need_approval(self):
1019
687
# than 'timeout' for the client to be disabled, which is as it
1020
688
# should be.
1021
689
1022
if self.checker is not None and not self.checker.is_alive():
1023
logger.warning("Checker was not alive; joining")
1024
self.checker.join()
1025
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)
1026
703
# Start a new checker if needed
1027
704
if self.checker is None:
1028
705
# Escape attributes for the shell
1029
escaped_attrs = {
1030
attr: re.escape(str(getattr(self, attr)))
1031
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)
1032
710
try:
1033
711
command = self.checker_command % escaped_attrs
1034
712
except TypeError as error:
1035
713
logger.error('Could not format string "%s"',
1036
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",
1037
738
exc_info=error)
1038
return True # Try again later
1039
self.current_checker_command = command
1040
logger.info("Starting checker %r for %s", command,
1041
self.name)
1042
# We don't need to redirect stdout and stderr, since
1043
# in normal mode, that is already done by daemon(),
1044
# and in debug mode we don't want to. (Stdin is
1045
# always replaced by /dev/null.)
1046
# The exception is when not debugging but nevertheless
1047
# running in the foreground; use the previously
1048
# created wnull.
1049
popen_args = { "close_fds": True,
1050
"shell": True,
1051
"cwd": "/" }
1052
if (not self.server_settings["debug"]
1053
and self.server_settings["foreground"]):
1054
popen_args.update({"stdout": wnull,
1055
"stderr": wnull })
1056
pipe = multiprocessing.Pipe(duplex = False)
1057
self.checker = multiprocessing.Process(
1058
target = call_pipe,
1059
args = (pipe[1], subprocess.call, command),
1060
kwargs = popen_args)
1061
self.checker.start()
1062
self.checker_callback_tag = GLib.io_add_watch(
1063
pipe[0].fileno(), GLib.IO_IN,
1064
self.checker_callback, pipe[0], command)
1065
# Re-run this periodically if run by GLib.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
1066
759
return True
1067
760
1068
761
def stop_checker(self):
1069
762
"""Force the checker process, if any, to stop."""
1070
763
if self.checker_callback_tag:
1071
GLib.source_remove(self.checker_callback_tag)
764
gobject.source_remove(self.checker_callback_tag)
1072
765
self.checker_callback_tag = None
1073
766
if getattr(self, "checker", None) is None:
1074
767
return
1075
768
logger.debug("Stopping checker for %(name)s", vars(self))
1076
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
1077
777
self.checker = None
1078
778
1079
779
1080
def dbus_service_property(dbus_interface,
1081
signature="v",
1082
access="readwrite",
1083
byte_arrays=False):
780
def dbus_service_property(dbus_interface, signature="v",
781
access="readwrite", byte_arrays=False):
1084
782
"""Decorators for marking methods of a DBusObjectWithProperties to
1085
783
become properties on the D-Bus.
1086
784
1095
793
# "Set" method, so we fail early here:
1096
794
if byte_arrays and signature != "ay":
1097
795
raise ValueError("Byte arrays not supported for non-'ay'"
1098
" signature {!r}".format(signature))
1099
796
" signature {0!r}".format(signature))
1100
797
def decorator(func):
1101
798
func._dbus_is_property = True
1102
799
func._dbus_interface = dbus_interface
1107
804
func._dbus_name = func._dbus_name[:-14]
1108
805
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1109
806
return func
1110
1111
807
return decorator
1112
808
1113
809
1122
818
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1123
819
"false"}
1124
820
"""
1125
1126
821
def decorator(func):
1127
822
func._dbus_is_interface = True
1128
823
func._dbus_interface = dbus_interface
1129
824
func._dbus_name = dbus_interface
1130
825
return func
1131
1132
826
return decorator
1133
827
1134
828
1136
830
"""Decorator to annotate D-Bus methods, signals or properties
1137
831
Usage:
1138
832
1139
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1140
"org.freedesktop.DBus.Property."
1141
"EmitsChangedSignal": "false"})
1142
833
@dbus_service_property("org.example.Interface", signature="b",
1143
834
access="r")
835
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
836
"org.freedesktop.DBus.Property."
837
"EmitsChangedSignal": "false"})
1144
838
def Property_dbus_property(self):
1145
839
return dbus.Boolean(False)
1146
1147
See also the DBusObjectWithAnnotations class.
1148
840
"""
1149
1150
841
def decorator(func):
1151
842
func._dbus_annotations = annotations
1152
843
return func
1153
1154
844
return decorator
1155
845
1156
846
1157
847
class DBusPropertyException(dbus.exceptions.DBusException):
1158
848
"""A base class for D-Bus property-related exceptions
1159
849
"""
1160
pass
850
def __unicode__(self):
851
return unicode(str(self))
1161
852
1162
853
1163
854
class DBusPropertyAccessException(DBusPropertyException):
1172
863
pass
1173
864
1174
865
1175
class DBusObjectWithAnnotations(dbus.service.Object):
1176
"""A D-Bus object with annotations.
866
class DBusObjectWithProperties(dbus.service.Object):
867
"""A D-Bus object with properties.
1177
868
1178
Classes inheriting from this can use the dbus_annotations
1179
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.
1180
872
"""
1181
873
1182
874
@staticmethod
1186
878
If called like _is_dbus_thing("method") it returns a function
1187
879
suitable for use as predicate to inspect.getmembers().
1188
880
"""
1189
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
881
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1190
882
False)
1191
883
1192
884
def _get_all_dbus_things(self, thing):
1193
885
"""Returns a generator of (name, attribute) pairs
1194
886
"""
1195
return ((getattr(athing.__get__(self), "_dbus_name", name),
887
return ((getattr(athing.__get__(self), "_dbus_name",
888
name),
1196
889
athing.__get__(self))
1197
890
for cls in self.__class__.__mro__
1198
891
for name, athing in
1199
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1200
1201
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1202
out_signature = "s",
1203
path_keyword = 'object_path',
1204
connection_keyword = 'connection')
1205
def Introspect(self, object_path, connection):
1206
"""Overloading of standard D-Bus method.
1207
1208
Inserts annotation tags on methods and signals.
1209
"""
1210
xmlstring = dbus.service.Object.Introspect(self, object_path,
1211
connection)
1212
try:
1213
document = xml.dom.minidom.parseString(xmlstring)
1214
1215
for if_tag in document.getElementsByTagName("interface"):
1216
# Add annotation tags
1217
for typ in ("method", "signal"):
1218
for tag in if_tag.getElementsByTagName(typ):
1219
annots = dict()
1220
for name, prop in (self.
1221
_get_all_dbus_things(typ)):
1222
if (name == tag.getAttribute("name")
1223
and prop._dbus_interface
1224
== if_tag.getAttribute("name")):
1225
annots.update(getattr(
1226
prop, "_dbus_annotations", {}))
1227
for name, value in annots.items():
1228
ann_tag = document.createElement(
1229
"annotation")
1230
ann_tag.setAttribute("name", name)
1231
ann_tag.setAttribute("value", value)
1232
tag.appendChild(ann_tag)
1233
# Add interface annotation tags
1234
for annotation, value in dict(
1235
itertools.chain.from_iterable(
1236
annotations().items()
1237
for name, annotations
1238
in self._get_all_dbus_things("interface")
1239
if name == if_tag.getAttribute("name")
1240
)).items():
1241
ann_tag = document.createElement("annotation")
1242
ann_tag.setAttribute("name", annotation)
1243
ann_tag.setAttribute("value", value)
1244
if_tag.appendChild(ann_tag)
1245
# Fix argument name for the Introspect method itself
1246
if (if_tag.getAttribute("name")
1247
== dbus.INTROSPECTABLE_IFACE):
1248
for cn in if_tag.getElementsByTagName("method"):
1249
if cn.getAttribute("name") == "Introspect":
1250
for arg in cn.getElementsByTagName("arg"):
1251
if (arg.getAttribute("direction")
1252
== "out"):
1253
arg.setAttribute("name",
1254
"xml_data")
1255
xmlstring = document.toxml("utf-8")
1256
document.unlink()
1257
except (AttributeError, xml.dom.DOMException,
1258
xml.parsers.expat.ExpatError) as error:
1259
logger.error("Failed to override Introspection method",
1260
exc_info=error)
1261
return xmlstring
1262
1263
1264
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1265
"""A D-Bus object with properties.
1266
1267
Classes inheriting from this can use the dbus_service_property
1268
decorator to expose methods as D-Bus properties. It exposes the
1269
standard Get(), Set(), and GetAll() methods on the D-Bus.
1270
"""
892
inspect.getmembers(cls,
893
self._is_dbus_thing(thing)))
1271
894
1272
895
def _get_dbus_property(self, interface_name, property_name):
1273
896
"""Returns a bound method if one exists which is a D-Bus
1274
897
property with the specified name and interface.
1275
898
"""
1276
for cls in self.__class__.__mro__:
1277
for name, value in inspect.getmembers(
1278
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"))):
1279
903
if (value._dbus_name == property_name
1280
904
and value._dbus_interface == interface_name):
1281
905
return value.__get__(self)
1282
906
1283
907
# No such property
1284
raise DBusPropertyNotFound("{}:{}.{}".format(
1285
self.dbus_object_path, interface_name, property_name))
1286
1287
@classmethod
1288
def _get_all_interface_names(cls):
1289
"""Get a sequence of all interfaces supported by an object"""
1290
return (name for name in set(getattr(getattr(x, attr),
1291
"_dbus_interface", None)
1292
for x in (inspect.getmro(cls))
1293
for attr in dir(x))
1294
if name is not None)
1295
1296
@dbus.service.method(dbus.PROPERTIES_IFACE,
1297
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",
1298
913
out_signature="v")
1299
914
def Get(self, interface_name, property_name):
1300
915
"""Standard D-Bus property Get() method, see D-Bus standard.
1318
933
# The byte_arrays option is not supported yet on
1319
934
# signatures other than "ay".
1320
935
if prop._dbus_signature != "ay":
1321
raise ValueError("Byte arrays not supported for non-"
1322
"'ay' signature {!r}"
1323
.format(prop._dbus_signature))
936
raise ValueError
1324
937
value = dbus.ByteArray(b''.join(chr(byte)
1325
938
for byte in value))
1326
939
prop(value)
1327
940
1328
@dbus.service.method(dbus.PROPERTIES_IFACE,
1329
in_signature="s",
941
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1330
942
out_signature="a{sv}")
1331
943
def GetAll(self, interface_name):
1332
944
"""Standard D-Bus property GetAll() method, see D-Bus
1347
959
if not hasattr(value, "variant_level"):
1348
960
properties[name] = value
1349
961
continue
1350
properties[name] = type(value)(
1351
value, variant_level = value.variant_level + 1)
962
properties[name] = type(value)(value, variant_level=
963
value.variant_level+1)
1352
964
return dbus.Dictionary(properties, signature="sv")
1353
965
1354
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1355
def PropertiesChanged(self, interface_name, changed_properties,
1356
invalidated_properties):
1357
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1358
standard.
1359
"""
1360
pass
1361
1362
966
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1363
967
out_signature="s",
1364
968
path_keyword='object_path',
1368
972
1369
973
Inserts property tags and interface annotation tags.
1370
974
"""
1371
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1372
object_path,
1373
connection)
975
xmlstring = dbus.service.Object.Introspect(self, object_path,
976
connection)
1374
977
try:
1375
978
document = xml.dom.minidom.parseString(xmlstring)
1376
1377
979
def make_tag(document, name, prop):
1378
980
e = document.createElement("property")
1379
981
e.setAttribute("name", name)
1380
982
e.setAttribute("type", prop._dbus_signature)
1381
983
e.setAttribute("access", prop._dbus_access)
1382
984
return e
1383
1384
985
for if_tag in document.getElementsByTagName("interface"):
1385
986
# Add property tags
1386
987
for tag in (make_tag(document, name, prop)
1389
990
if prop._dbus_interface
1390
991
== if_tag.getAttribute("name")):
1391
992
if_tag.appendChild(tag)
1392
# Add annotation tags for properties
1393
for tag in if_tag.getElementsByTagName("property"):
1394
annots = dict()
1395
for name, prop in self._get_all_dbus_things(
1396
"property"):
1397
if (name == tag.getAttribute("name")
1398
and prop._dbus_interface
1399
== if_tag.getAttribute("name")):
1400
annots.update(getattr(
1401
prop, "_dbus_annotations", {}))
1402
for name, value in annots.items():
1403
ann_tag = document.createElement(
1404
"annotation")
1405
ann_tag.setAttribute("name", name)
1406
ann_tag.setAttribute("value", value)
1407
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)
1408
1024
# Add the names to the return values for the
1409
1025
# "org.freedesktop.DBus.Properties" methods
1410
1026
if (if_tag.getAttribute("name")
1428
1044
exc_info=error)
1429
1045
return xmlstring
1430
1046
1431
try:
1432
dbus.OBJECT_MANAGER_IFACE
1433
except AttributeError:
1434
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1435
1436
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1437
"""A D-Bus object with an ObjectManager.
1438
1439
Classes inheriting from this exposes the standard
1440
GetManagedObjects call and the InterfacesAdded and
1441
InterfacesRemoved signals on the standard
1442
"org.freedesktop.DBus.ObjectManager" interface.
1443
1444
Note: No signals are sent automatically; they must be sent
1445
manually.
1446
"""
1447
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1448
out_signature = "a{oa{sa{sv}}}")
1449
def GetManagedObjects(self):
1450
"""This function must be overridden"""
1451
raise NotImplementedError()
1452
1453
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1454
signature = "oa{sa{sv}}")
1455
def InterfacesAdded(self, object_path, interfaces_and_properties):
1456
pass
1457
1458
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1459
def InterfacesRemoved(self, object_path, interfaces):
1460
pass
1461
1462
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1463
out_signature = "s",
1464
path_keyword = 'object_path',
1465
connection_keyword = 'connection')
1466
def Introspect(self, object_path, connection):
1467
"""Overloading of standard D-Bus method.
1468
1469
Override return argument name of GetManagedObjects to be
1470
"objpath_interfaces_and_properties"
1471
"""
1472
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1473
object_path,
1474
connection)
1475
try:
1476
document = xml.dom.minidom.parseString(xmlstring)
1477
1478
for if_tag in document.getElementsByTagName("interface"):
1479
# Fix argument name for the GetManagedObjects method
1480
if (if_tag.getAttribute("name")
1481
== dbus.OBJECT_MANAGER_IFACE):
1482
for cn in if_tag.getElementsByTagName("method"):
1483
if (cn.getAttribute("name")
1484
== "GetManagedObjects"):
1485
for arg in cn.getElementsByTagName("arg"):
1486
if (arg.getAttribute("direction")
1487
== "out"):
1488
arg.setAttribute(
1489
"name",
1490
"objpath_interfaces"
1491
"_and_properties")
1492
xmlstring = document.toxml("utf-8")
1493
document.unlink()
1494
except (AttributeError, xml.dom.DOMException,
1495
xml.parsers.expat.ExpatError) as error:
1496
logger.error("Failed to override Introspection method",
1497
exc_info = error)
1498
return xmlstring
1499
1047
1500
1048
def datetime_to_dbus(dt, variant_level=0):
1501
1049
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1502
1050
if dt is None:
1503
1051
return dbus.String("", variant_level = variant_level)
1504
return dbus.String(dt.isoformat(), variant_level=variant_level)
1052
return dbus.String(dt.isoformat(),
1053
variant_level=variant_level)
1505
1054
1506
1055
1507
1056
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1527
1076
(from DBusObjectWithProperties) and interfaces (from the
1528
1077
dbus_interface_annotations decorator).
1529
1078
"""
1530
1531
1079
def wrapper(cls):
1532
1080
for orig_interface_name, alt_interface_name in (
1533
alt_interface_names.items()):
1081
alt_interface_names.iteritems()):
1534
1082
attr = {}
1535
1083
interface_names = set()
1536
1084
# Go though all attributes of the class
1538
1086
# Ignore non-D-Bus attributes, and D-Bus attributes
1539
1087
# with the wrong interface name
1540
1088
if (not hasattr(attribute, "_dbus_interface")
1541
or not attribute._dbus_interface.startswith(
1542
orig_interface_name)):
1089
or not attribute._dbus_interface
1090
.startswith(orig_interface_name)):
1543
1091
continue
1544
1092
# Create an alternate D-Bus interface name based on
1545
1093
# the current name
1546
alt_interface = attribute._dbus_interface.replace(
1547
orig_interface_name, alt_interface_name)
1094
alt_interface = (attribute._dbus_interface
1095
.replace(orig_interface_name,
1096
alt_interface_name))
1548
1097
interface_names.add(alt_interface)
1549
1098
# Is this a D-Bus signal?
1550
1099
if getattr(attribute, "_dbus_is_signal", False):
1551
1100
# Extract the original non-method undecorated
1552
1101
# function by black magic
1553
if sys.version_info.major == 2:
1554
nonmethod_func = (dict(
1102
nonmethod_func = (dict(
1555
1103
zip(attribute.func_code.co_freevars,
1556
attribute.__closure__))
1557
["func"].cell_contents)
1558
else:
1559
nonmethod_func = (dict(
1560
zip(attribute.__code__.co_freevars,
1561
attribute.__closure__))
1562
["func"].cell_contents)
1104
attribute.__closure__))["func"]
1105
.cell_contents)
1563
1106
# Create a new, but exactly alike, function
1564
1107
# object, and decorate it to be a new D-Bus signal
1565
1108
# with the alternate D-Bus interface name
1566
new_function = copy_function(nonmethod_func)
1567
new_function = (dbus.service.signal(
1568
alt_interface,
1569
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)))
1570
1118
# Copy annotations, if any
1571
1119
try:
1572
new_function._dbus_annotations = dict(
1573
attribute._dbus_annotations)
1120
new_function._dbus_annotations = (
1121
dict(attribute._dbus_annotations))
1574
1122
except AttributeError:
1575
1123
pass
1576
1124
# Define a creator of a function to call both the
1581
1129
"""This function is a scope container to pass
1582
1130
func1 and func2 to the "call_both" function
1583
1131
outside of its arguments"""
1584
1585
@functools.wraps(func2)
1586
1132
def call_both(*args, **kwargs):
1587
1133
"""This function will emit two D-Bus
1588
1134
signals by calling func1 and func2"""
1589
1135
func1(*args, **kwargs)
1590
1136
func2(*args, **kwargs)
1591
# Make wrapper function look like a D-Bus signal
1592
for name, attr in inspect.getmembers(func2):
1593
if name.startswith("_dbus_"):
1594
setattr(call_both, name, attr)
1595
1596
1137
return call_both
1597
1138
# Create the "call_both" function and add it to
1598
1139
# the class
1603
1144
# object. Decorate it to be a new D-Bus method
1604
1145
# with the alternate D-Bus interface name. Add it
1605
1146
# to the class.
1606
attr[attrname] = (
1607
dbus.service.method(
1608
alt_interface,
1609
attribute._dbus_in_signature,
1610
attribute._dbus_out_signature)
1611
(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)))
1612
1157
# Copy annotations, if any
1613
1158
try:
1614
attr[attrname]._dbus_annotations = dict(
1615
attribute._dbus_annotations)
1159
attr[attrname]._dbus_annotations = (
1160
dict(attribute._dbus_annotations))
1616
1161
except AttributeError:
1617
1162
pass
1618
1163
# Is this a D-Bus property?
1621
1166
# object, and decorate it to be a new D-Bus
1622
1167
# property with the alternate D-Bus interface
1623
1168
# name. Add it to the class.
1624
attr[attrname] = (dbus_service_property(
1625
alt_interface, attribute._dbus_signature,
1626
attribute._dbus_access,
1627
attribute._dbus_get_args_options
1628
["byte_arrays"])
1629
(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)))
1630
1182
# Copy annotations, if any
1631
1183
try:
1632
attr[attrname]._dbus_annotations = dict(
1633
attribute._dbus_annotations)
1184
attr[attrname]._dbus_annotations = (
1185
dict(attribute._dbus_annotations))
1634
1186
except AttributeError:
1635
1187
pass
1636
1188
# Is this a D-Bus interface?
1639
1191
# object. Decorate it to be a new D-Bus interface
1640
1192
# with the alternate D-Bus interface name. Add it
1641
1193
# to the class.
1642
attr[attrname] = (
1643
dbus_interface_annotations(alt_interface)
1644
(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)))
1645
1202
if deprecate:
1646
1203
# Deprecate all alternate interfaces
1647
iname="_AlternateDBusNames_interface_annotation{}"
1204
iname="_AlternateDBusNames_interface_annotation{0}"
1648
1205
for interface_name in interface_names:
1649
1650
1206
@dbus_interface_annotations(interface_name)
1651
1207
def func(self):
1652
1208
return { "org.freedesktop.DBus.Deprecated":
1653
"true" }
1209
"true" }
1654
1210
# Find an unused name
1655
1211
for aname in (iname.format(i)
1656
1212
for i in itertools.count()):
1660
1216
if interface_names:
1661
1217
# Replace the class with a new subclass of it with
1662
1218
# methods, signals, etc. as created above.
1663
if sys.version_info.major == 2:
1664
cls = type(b"{}Alternate".format(cls.__name__),
1665
(cls, ), attr)
1666
else:
1667
cls = type("{}Alternate".format(cls.__name__),
1668
(cls, ), attr)
1219
cls = type(b"{0}Alternate".format(cls.__name__),
1220
(cls,), attr)
1669
1221
return cls
1670
1671
1222
return wrapper
1672
1223
1673
1224
1674
1225
@alternate_dbus_interfaces({"se.recompile.Mandos":
1675
"se.bsnet.fukt.Mandos"})
1226
"se.bsnet.fukt.Mandos"})
1676
1227
class ClientDBus(Client, DBusObjectWithProperties):
1677
1228
"""A Client class using D-Bus
1678
1229
1682
1233
"""
1683
1234
1684
1235
runtime_expansions = (Client.runtime_expansions
1685
+ ("dbus_object_path", ))
1686
1687
_interface = "se.recompile.Mandos.Client"
1236
+ ("dbus_object_path",))
1688
1237
1689
1238
# dbus.service.Object doesn't use super(), so we can't either.
1690
1239
1693
1242
Client.__init__(self, *args, **kwargs)
1694
1243
# Only now, when this client is initialized, can it show up on
1695
1244
# the D-Bus
1696
client_object_name = str(self.name).translate(
1245
client_object_name = unicode(self.name).translate(
1697
1246
{ord("."): ord("_"),
1698
1247
ord("-"): ord("_")})
1699
self.dbus_object_path = dbus.ObjectPath(
1700
"/clients/" + client_object_name)
1248
self.dbus_object_path = (dbus.ObjectPath
1249
("/clients/" + client_object_name))
1701
1250
DBusObjectWithProperties.__init__(self, self.bus,
1702
1251
self.dbus_object_path)
1703
1252
1704
def notifychangeproperty(transform_func, dbus_name,
1705
type_func=lambda x: x,
1706
variant_level=1,
1707
invalidate_only=False,
1708
_interface=_interface):
1253
def notifychangeproperty(transform_func,
1254
dbus_name, type_func=lambda x: x,
1255
variant_level=1):
1709
1256
""" Modify a variable so that it's a property which announces
1710
1257
its changes to DBus.
1711
1258
1716
1263
to the D-Bus. Default: no transform
1717
1264
variant_level: D-Bus variant level. Default: 1
1718
1265
"""
1719
attrname = "_{}".format(dbus_name)
1720
1266
attrname = "_{0}".format(dbus_name)
1721
1267
def setter(self, value):
1722
1268
if hasattr(self, "dbus_object_path"):
1723
1269
if (not hasattr(self, attrname) or
1724
1270
type_func(getattr(self, attrname, None))
1725
1271
!= type_func(value)):
1726
if invalidate_only:
1727
self.PropertiesChanged(
1728
_interface, dbus.Dictionary(),
1729
dbus.Array((dbus_name, )))
1730
else:
1731
dbus_value = transform_func(
1732
type_func(value),
1733
variant_level = variant_level)
1734
self.PropertyChanged(dbus.String(dbus_name),
1735
dbus_value)
1736
self.PropertiesChanged(
1737
_interface,
1738
dbus.Dictionary({ dbus.String(dbus_name):
1739
dbus_value }),
1740
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)
1741
1277
setattr(self, attrname, value)
1742
1278
1743
1279
return property(lambda self: getattr(self, attrname), setter)
1749
1285
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1750
1286
last_enabled = notifychangeproperty(datetime_to_dbus,
1751
1287
"LastEnabled")
1752
checker = notifychangeproperty(
1753
dbus.Boolean, "CheckerRunning",
1754
type_func = lambda checker: checker is not None)
1288
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1289
type_func = lambda checker:
1290
checker is not None)
1755
1291
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1756
1292
"LastCheckedOK")
1757
1293
last_checker_status = notifychangeproperty(dbus.Int16,
1760
1296
datetime_to_dbus, "LastApprovalRequest")
1761
1297
approved_by_default = notifychangeproperty(dbus.Boolean,
1762
1298
"ApprovedByDefault")
1763
approval_delay = notifychangeproperty(
1764
dbus.UInt64, "ApprovalDelay",
1765
type_func = lambda td: td.total_seconds() * 1000)
1299
approval_delay = notifychangeproperty(dbus.UInt64,
1300
"ApprovalDelay",
1301
type_func =
1302
timedelta_to_milliseconds)
1766
1303
approval_duration = notifychangeproperty(
1767
1304
dbus.UInt64, "ApprovalDuration",
1768
type_func = lambda td: td.total_seconds() * 1000)
1305
type_func = timedelta_to_milliseconds)
1769
1306
host = notifychangeproperty(dbus.String, "Host")
1770
timeout = notifychangeproperty(
1771
dbus.UInt64, "Timeout",
1772
type_func = lambda td: td.total_seconds() * 1000)
1307
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1308
type_func =
1309
timedelta_to_milliseconds)
1773
1310
extended_timeout = notifychangeproperty(
1774
1311
dbus.UInt64, "ExtendedTimeout",
1775
type_func = lambda td: td.total_seconds() * 1000)
1776
interval = notifychangeproperty(
1777
dbus.UInt64, "Interval",
1778
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)
1779
1317
checker_command = notifychangeproperty(dbus.String, "Checker")
1780
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1781
invalidate_only=True)
1782
1318
1783
1319
del notifychangeproperty
1784
1320
1791
1327
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1792
1328
Client.__del__(self, *args, **kwargs)
1793
1329
1794
def checker_callback(self, source, condition,
1795
connection, command, *args, **kwargs):
1796
ret = Client.checker_callback(self, source, condition,
1797
connection, command, *args,
1798
**kwargs)
1799
exitstatus = self.last_checker_status
1800
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)
1801
1336
# Emit D-Bus signal
1802
1337
self.CheckerCompleted(dbus.Int16(exitstatus),
1803
# This is specific to GNU libC
1804
dbus.Int64(exitstatus << 8),
1338
dbus.Int64(condition),
1805
1339
dbus.String(command))
1806
1340
else:
1807
1341
# Emit D-Bus signal
1808
1342
self.CheckerCompleted(dbus.Int16(-1),
1809
dbus.Int64(
1810
# This is specific to GNU libC
1811
(exitstatus << 8)
1812
| self.last_checker_signal),
1343
dbus.Int64(condition),
1813
1344
dbus.String(command))
1814
return ret
1345
1346
return Client.checker_callback(self, pid, condition, command,
1347
*args, **kwargs)
1815
1348
1816
1349
def start_checker(self, *args, **kwargs):
1817
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
1818
1355
r = Client.start_checker(self, *args, **kwargs)
1819
1356
# Only if new checker process was started
1820
1357
if (self.checker is not None
1829
1366
1830
1367
def approve(self, value=True):
1831
1368
self.approved = value
1832
GLib.timeout_add(int(self.approval_duration.total_seconds()
1833
* 1000), self._reset_approved)
1369
gobject.timeout_add(timedelta_to_milliseconds
1370
(self.approval_duration),
1371
self._reset_approved)
1834
1372
self.send_changedstate()
1835
1373
1836
1374
## D-Bus methods, signals & properties
1375
_interface = "se.recompile.Mandos.Client"
1837
1376
1838
1377
## Interfaces
1839
1378
1379
@dbus_interface_annotations(_interface)
1380
def _foo(self):
1381
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1382
"false"}
1383
1840
1384
## Signals
1841
1385
1842
1386
# CheckerCompleted - signal
1852
1396
pass
1853
1397
1854
1398
# PropertyChanged - signal
1855
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1856
1399
@dbus.service.signal(_interface, signature="sv")
1857
1400
def PropertyChanged(self, property, value):
1858
1401
"D-Bus signal"
1892
1435
self.checked_ok()
1893
1436
1894
1437
# Enable - method
1895
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1896
1438
@dbus.service.method(_interface)
1897
1439
def Enable(self):
1898
1440
"D-Bus method"
1899
1441
self.enable()
1900
1442
1901
1443
# StartChecker - method
1902
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1903
1444
@dbus.service.method(_interface)
1904
1445
def StartChecker(self):
1905
1446
"D-Bus method"
1906
1447
self.start_checker()
1907
1448
1908
1449
# Disable - method
1909
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1910
1450
@dbus.service.method(_interface)
1911
1451
def Disable(self):
1912
1452
"D-Bus method"
1913
1453
self.disable()
1914
1454
1915
1455
# StopChecker - method
1916
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1917
1456
@dbus.service.method(_interface)
1918
1457
def StopChecker(self):
1919
1458
self.stop_checker()
1926
1465
return dbus.Boolean(bool(self.approvals_pending))
1927
1466
1928
1467
# ApprovedByDefault - property
1929
@dbus_service_property(_interface,
1930
signature="b",
1468
@dbus_service_property(_interface, signature="b",
1931
1469
access="readwrite")
1932
1470
def ApprovedByDefault_dbus_property(self, value=None):
1933
1471
if value is None: # get
1935
1473
self.approved_by_default = bool(value)
1936
1474
1937
1475
# ApprovalDelay - property
1938
@dbus_service_property(_interface,
1939
signature="t",
1476
@dbus_service_property(_interface, signature="t",
1940
1477
access="readwrite")
1941
1478
def ApprovalDelay_dbus_property(self, value=None):
1942
1479
if value is None: # get
1943
return dbus.UInt64(self.approval_delay.total_seconds()
1944
* 1000)
1480
return dbus.UInt64(self.approval_delay_milliseconds())
1945
1481
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1946
1482
1947
1483
# ApprovalDuration - property
1948
@dbus_service_property(_interface,
1949
signature="t",
1484
@dbus_service_property(_interface, signature="t",
1950
1485
access="readwrite")
1951
1486
def ApprovalDuration_dbus_property(self, value=None):
1952
1487
if value is None: # get
1953
return dbus.UInt64(self.approval_duration.total_seconds()
1954
* 1000)
1488
return dbus.UInt64(timedelta_to_milliseconds(
1489
self.approval_duration))
1955
1490
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1956
1491
1957
1492
# Name - property
1958
@dbus_annotations(
1959
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1960
1493
@dbus_service_property(_interface, signature="s", access="read")
1961
1494
def Name_dbus_property(self):
1962
1495
return dbus.String(self.name)
1963
1496
1964
1497
# Fingerprint - property
1965
@dbus_annotations(
1966
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1967
1498
@dbus_service_property(_interface, signature="s", access="read")
1968
1499
def Fingerprint_dbus_property(self):
1969
1500
return dbus.String(self.fingerprint)
1970
1501
1971
1502
# Host - property
1972
@dbus_service_property(_interface,
1973
signature="s",
1503
@dbus_service_property(_interface, signature="s",
1974
1504
access="readwrite")
1975
1505
def Host_dbus_property(self, value=None):
1976
1506
if value is None: # get
1977
1507
return dbus.String(self.host)
1978
self.host = str(value)
1508
self.host = unicode(value)
1979
1509
1980
1510
# Created - property
1981
@dbus_annotations(
1982
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1983
1511
@dbus_service_property(_interface, signature="s", access="read")
1984
1512
def Created_dbus_property(self):
1985
1513
return datetime_to_dbus(self.created)
1990
1518
return datetime_to_dbus(self.last_enabled)
1991
1519
1992
1520
# Enabled - property
1993
@dbus_service_property(_interface,
1994
signature="b",
1521
@dbus_service_property(_interface, signature="b",
1995
1522
access="readwrite")
1996
1523
def Enabled_dbus_property(self, value=None):
1997
1524
if value is None: # get
2002
1529
self.disable()
2003
1530
2004
1531
# LastCheckedOK - property
2005
@dbus_service_property(_interface,
2006
signature="s",
1532
@dbus_service_property(_interface, signature="s",
2007
1533
access="readwrite")
2008
1534
def LastCheckedOK_dbus_property(self, value=None):
2009
1535
if value is not None:
2012
1538
return datetime_to_dbus(self.last_checked_ok)
2013
1539
2014
1540
# LastCheckerStatus - property
2015
@dbus_service_property(_interface, signature="n", access="read")
1541
@dbus_service_property(_interface, signature="n",
1542
access="read")
2016
1543
def LastCheckerStatus_dbus_property(self):
2017
1544
return dbus.Int16(self.last_checker_status)
2018
1545
2027
1554
return datetime_to_dbus(self.last_approval_request)
2028
1555
2029
1556
# Timeout - property
2030
@dbus_service_property(_interface,
2031
signature="t",
1557
@dbus_service_property(_interface, signature="t",
2032
1558
access="readwrite")
2033
1559
def Timeout_dbus_property(self, value=None):
2034
1560
if value is None: # get
2035
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1561
return dbus.UInt64(self.timeout_milliseconds())
2036
1562
old_timeout = self.timeout
2037
1563
self.timeout = datetime.timedelta(0, 0, 0, value)
2038
1564
# Reschedule disabling
2046
1572
if (getattr(self, "disable_initiator_tag", None)
2047
1573
is None):
2048
1574
return
2049
GLib.source_remove(self.disable_initiator_tag)
2050
self.disable_initiator_tag = GLib.timeout_add(
2051
int((self.expires - now).total_seconds() * 1000),
2052
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))
2053
1580
2054
1581
# ExtendedTimeout - property
2055
@dbus_service_property(_interface,
2056
signature="t",
1582
@dbus_service_property(_interface, signature="t",
2057
1583
access="readwrite")
2058
1584
def ExtendedTimeout_dbus_property(self, value=None):
2059
1585
if value is None: # get
2060
return dbus.UInt64(self.extended_timeout.total_seconds()
2061
* 1000)
1586
return dbus.UInt64(self.extended_timeout_milliseconds())
2062
1587
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2063
1588
2064
1589
# Interval - property
2065
@dbus_service_property(_interface,
2066
signature="t",
1590
@dbus_service_property(_interface, signature="t",
2067
1591
access="readwrite")
2068
1592
def Interval_dbus_property(self, value=None):
2069
1593
if value is None: # get
2070
return dbus.UInt64(self.interval.total_seconds() * 1000)
1594
return dbus.UInt64(self.interval_milliseconds())
2071
1595
self.interval = datetime.timedelta(0, 0, 0, value)
2072
1596
if getattr(self, "checker_initiator_tag", None) is None:
2073
1597
return
2074
1598
if self.enabled:
2075
1599
# Reschedule checker run
2076
GLib.source_remove(self.checker_initiator_tag)
2077
self.checker_initiator_tag = GLib.timeout_add(
2078
value, self.start_checker)
2079
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
2080
1604
2081
1605
# Checker - property
2082
@dbus_service_property(_interface,
2083
signature="s",
1606
@dbus_service_property(_interface, signature="s",
2084
1607
access="readwrite")
2085
1608
def Checker_dbus_property(self, value=None):
2086
1609
if value is None: # get
2087
1610
return dbus.String(self.checker_command)
2088
self.checker_command = str(value)
1611
self.checker_command = unicode(value)
2089
1612
2090
1613
# CheckerRunning - property
2091
@dbus_service_property(_interface,
2092
signature="b",
1614
@dbus_service_property(_interface, signature="b",
2093
1615
access="readwrite")
2094
1616
def CheckerRunning_dbus_property(self, value=None):
2095
1617
if value is None: # get
2100
1622
self.stop_checker()
2101
1623
2102
1624
# ObjectPath - property
2103
@dbus_annotations(
2104
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2105
"org.freedesktop.DBus.Deprecated": "true"})
2106
1625
@dbus_service_property(_interface, signature="o", access="read")
2107
1626
def ObjectPath_dbus_property(self):
2108
1627
return self.dbus_object_path # is already a dbus.ObjectPath
2109
1628
2110
1629
# Secret = property
2111
@dbus_annotations(
2112
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2113
"invalidates"})
2114
@dbus_service_property(_interface,
2115
signature="ay",
2116
access="write",
2117
byte_arrays=True)
1630
@dbus_service_property(_interface, signature="ay",
1631
access="write", byte_arrays=True)
2118
1632
def Secret_dbus_property(self, value):
2119
self.secret = bytes(value)
1633
self.secret = str(value)
2120
1634
2121
1635
del _interface
2122
1636
2126
1640
self._pipe = child_pipe
2127
1641
self._pipe.send(('init', fpr, address))
2128
1642
if not self._pipe.recv():
2129
raise KeyError(fpr)
1643
raise KeyError()
2130
1644
2131
1645
def __getattribute__(self, name):
2132
1646
if name == '_pipe':
2136
1650
if data[0] == 'data':
2137
1651
return data[1]
2138
1652
if data[0] == 'function':
2139
2140
1653
def func(*args, **kwargs):
2141
1654
self._pipe.send(('funcall', name, args, kwargs))
2142
1655
return self._pipe.recv()[1]
2143
2144
1656
return func
2145
1657
2146
1658
def __setattr__(self, name, value):
2158
1670
def handle(self):
2159
1671
with contextlib.closing(self.server.child_pipe) as child_pipe:
2160
1672
logger.info("TCP connection from: %s",
2161
str(self.client_address))
1673
unicode(self.client_address))
2162
1674
logger.debug("Pipe FD: %d",
2163
1675
self.server.child_pipe.fileno())
2164
1676
2165
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.
2166
1686
2167
1687
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2168
1688
# "+AES-256-CBC", "+SHA1",
2172
1692
priority = self.server.gnutls_priority
2173
1693
if priority is None:
2174
1694
priority = "NORMAL"
2175
gnutls.priority_set_direct(session._c_object, priority,
2176
None)
1695
(gnutls.library.functions
1696
.gnutls_priority_set_direct(session._c_object,
1697
priority, None))
2177
1698
2178
1699
# Start communication using the Mandos protocol
2179
1700
# Get protocol number
2181
1702
logger.debug("Protocol version: %r", line)
2182
1703
try:
2183
1704
if int(line.strip().split()[0]) > 1:
2184
raise RuntimeError(line)
1705
raise RuntimeError
2185
1706
except (ValueError, IndexError, RuntimeError) as error:
2186
1707
logger.error("Unknown protocol version: %s", error)
2187
1708
return
2189
1710
# Start GnuTLS connection
2190
1711
try:
2191
1712
session.handshake()
2192
except gnutls.Error as error:
1713
except gnutls.errors.GNUTLSError as error:
2193
1714
logger.warning("Handshake failed: %s", error)
2194
1715
# Do not run session.bye() here: the session is not
2195
1716
# established. Just abandon the request.
2199
1720
approval_required = False
2200
1721
try:
2201
1722
try:
2202
fpr = self.fingerprint(
2203
self.peer_certificate(session))
2204
except (TypeError, gnutls.Error) as error:
1723
fpr = self.fingerprint(self.peer_certificate
1724
(session))
1725
except (TypeError,
1726
gnutls.errors.GNUTLSError) as error:
2205
1727
logger.warning("Bad certificate: %s", error)
2206
1728
return
2207
1729
logger.debug("Fingerprint: %s", fpr)
2220
1742
while True:
2221
1743
if not client.enabled:
2222
1744
logger.info("Client %s is disabled",
2223
client.name)
1745
client.name)
2224
1746
if self.server.use_dbus:
2225
1747
# Emit D-Bus signal
2226
1748
client.Rejected("Disabled")
2235
1757
if self.server.use_dbus:
2236
1758
# Emit D-Bus signal
2237
1759
client.NeedApproval(
2238
client.approval_delay.total_seconds()
2239
* 1000, client.approved_by_default)
1760
client.approval_delay_milliseconds(),
1761
client.approved_by_default)
2240
1762
else:
2241
1763
logger.warning("Client %s was not approved",
2242
1764
client.name)
2248
1770
#wait until timeout or approved
2249
1771
time = datetime.datetime.now()
2250
1772
client.changedstate.acquire()
2251
client.changedstate.wait(delay.total_seconds())
1773
client.changedstate.wait(
1774
float(timedelta_to_milliseconds(delay)
1775
/ 1000))
2252
1776
client.changedstate.release()
2253
1777
time2 = datetime.datetime.now()
2254
1778
if (time2 - time) >= delay:
2265
1789
else:
2266
1790
delay -= time2 - time
2267
1791
2268
try:
2269
session.send(client.secret)
2270
except gnutls.Error as error:
2271
logger.warning("gnutls send failed",
2272
exc_info = error)
2273
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
2274
1804
2275
1805
logger.info("Sending secret to %s", client.name)
2276
1806
# bump the timeout using extended_timeout
2284
1814
client.approvals_pending -= 1
2285
1815
try:
2286
1816
session.bye()
2287
except gnutls.Error as error:
1817
except gnutls.errors.GNUTLSError as error:
2288
1818
logger.warning("GnuTLS bye failed",
2289
1819
exc_info=error)
2290
1820
2292
1822
def peer_certificate(session):
2293
1823
"Return the peer's OpenPGP certificate as a bytestring"
2294
1824
# If not an OpenPGP certificate...
2295
if (gnutls.certificate_type_get(session._c_object)
2296
!= gnutls.CRT_OPENPGP):
2297
# ...return invalid data
2298
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
2299
1830
list_size = ctypes.c_uint(1)
2300
cert_list = (gnutls.certificate_get_peers
1831
cert_list = (gnutls.library.functions
1832
.gnutls_certificate_get_peers
2301
1833
(session._c_object, ctypes.byref(list_size)))
2302
1834
if not bool(cert_list) and list_size.value != 0:
2303
raise gnutls.Error("error getting peer certificate")
1835
raise gnutls.errors.GNUTLSError("error getting peer"
1836
" certificate")
2304
1837
if list_size.value == 0:
2305
1838
return None
2306
1839
cert = cert_list[0]
2310
1843
def fingerprint(openpgp):
2311
1844
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2312
1845
# New GnuTLS "datum" with the OpenPGP public key
2313
datum = gnutls.datum_t(
2314
ctypes.cast(ctypes.c_char_p(openpgp),
2315
ctypes.POINTER(ctypes.c_ubyte)),
2316
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))))
2317
1851
# New empty GnuTLS certificate
2318
crt = gnutls.openpgp_crt_t()
2319
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)))
2320
1855
# Import the OpenPGP public key into the certificate
2321
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2322
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))
2323
1860
# Verify the self signature in the key
2324
1861
crtverify = ctypes.c_uint()
2325
gnutls.openpgp_crt_verify_self(crt, 0,
2326
ctypes.byref(crtverify))
1862
(gnutls.library.functions
1863
.gnutls_openpgp_crt_verify_self(crt, 0,
1864
ctypes.byref(crtverify)))
2327
1865
if crtverify.value != 0:
2328
gnutls.openpgp_crt_deinit(crt)
2329
raise gnutls.CertificateSecurityError("Verify failed")
1866
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1867
raise (gnutls.errors.CertificateSecurityError
1868
("Verify failed"))
2330
1869
# New buffer for the fingerprint
2331
1870
buf = ctypes.create_string_buffer(20)
2332
1871
buf_len = ctypes.c_size_t()
2333
1872
# Get the fingerprint from the certificate into the buffer
2334
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2335
ctypes.byref(buf_len))
1873
(gnutls.library.functions
1874
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1875
ctypes.byref(buf_len)))
2336
1876
# Deinit the certificate
2337
gnutls.openpgp_crt_deinit(crt)
1877
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2338
1878
# Convert the buffer to a Python bytestring
2339
1879
fpr = ctypes.string_at(buf, buf_len.value)
2340
1880
# Convert the bytestring to hexadecimal notation
2344
1884
2345
1885
class MultiprocessingMixIn(object):
2346
1886
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2347
2348
1887
def sub_process_main(self, request, address):
2349
1888
try:
2350
1889
self.finish_request(request, address)
2362
1901
2363
1902
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2364
1903
""" adds a pipe to the MixIn """
2365
2366
1904
def process_request(self, request, client_address):
2367
1905
"""Overrides and wraps the original process_request().
2368
1906
2377
1915
2378
1916
def add_pipe(self, parent_pipe, proc):
2379
1917
"""Dummy function; override as necessary"""
2380
raise NotImplementedError()
1918
raise NotImplementedError
2381
1919
2382
1920
2383
1921
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2389
1927
interface: None or a network interface name (string)
2390
1928
use_ipv6: Boolean; to use IPv6 or not
2391
1929
"""
2392
2393
1930
def __init__(self, server_address, RequestHandlerClass,
2394
interface=None,
2395
use_ipv6=True,
2396
socketfd=None):
1931
interface=None, use_ipv6=True, socketfd=None):
2397
1932
"""If socketfd is set, use that file descriptor instead of
2398
1933
creating a new one with socket.socket().
2399
1934
"""
2440
1975
self.interface)
2441
1976
else:
2442
1977
try:
2443
self.socket.setsockopt(
2444
socket.SOL_SOCKET, SO_BINDTODEVICE,
2445
(self.interface + "\0").encode("utf-8"))
1978
self.socket.setsockopt(socket.SOL_SOCKET,
1979
SO_BINDTODEVICE,
1980
str(self.interface + '\0'))
2446
1981
except socket.error as error:
2447
1982
if error.errno == errno.EPERM:
2448
1983
logger.error("No permission to bind to"
2466
2001
self.server_address = (any_address,
2467
2002
self.server_address[1])
2468
2003
elif not self.server_address[1]:
2469
self.server_address = (self.server_address[0], 0)
2004
self.server_address = (self.server_address[0],
2005
0)
2470
2006
# if self.interface:
2471
2007
# self.server_address = (self.server_address[0],
2472
2008
# 0, # port
2484
2020
gnutls_priority GnuTLS priority string
2485
2021
use_dbus: Boolean; to emit D-Bus signals or not
2486
2022
2487
Assumes a GLib.MainLoop event loop.
2023
Assumes a gobject.MainLoop event loop.
2488
2024
"""
2489
2490
2025
def __init__(self, server_address, RequestHandlerClass,
2491
interface=None,
2492
use_ipv6=True,
2493
clients=None,
2494
gnutls_priority=None,
2495
use_dbus=True,
2496
socketfd=None):
2026
interface=None, use_ipv6=True, clients=None,
2027
gnutls_priority=None, use_dbus=True, socketfd=None):
2497
2028
self.enabled = False
2498
2029
self.clients = clients
2499
2030
if self.clients is None:
2505
2036
interface = interface,
2506
2037
use_ipv6 = use_ipv6,
2507
2038
socketfd = socketfd)
2508
2509
2039
def server_activate(self):
2510
2040
if self.enabled:
2511
2041
return socketserver.TCPServer.server_activate(self)
2515
2045
2516
2046
def add_pipe(self, parent_pipe, proc):
2517
2047
# Call "handle_ipc" for both data and EOF events
2518
GLib.io_add_watch(
2519
parent_pipe.fileno(),
2520
GLib.IO_IN | GLib.IO_HUP,
2521
functools.partial(self.handle_ipc,
2522
parent_pipe = parent_pipe,
2523
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))
2524
2054
2525
def handle_ipc(self, source, condition,
2526
parent_pipe=None,
2527
proc = None,
2528
client_object=None):
2055
def handle_ipc(self, source, condition, parent_pipe=None,
2056
proc = None, client_object=None):
2529
2057
# error, or the other end of multiprocessing.Pipe has closed
2530
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2058
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2531
2059
# Wait for other process to exit
2532
2060
proc.join()
2533
2061
return False
2540
2068
fpr = request[1]
2541
2069
address = request[2]
2542
2070
2543
for c in self.clients.values():
2071
for c in self.clients.itervalues():
2544
2072
if c.fingerprint == fpr:
2545
2073
client = c
2546
2074
break
2554
2082
parent_pipe.send(False)
2555
2083
return False
2556
2084
2557
GLib.io_add_watch(
2558
parent_pipe.fileno(),
2559
GLib.IO_IN | GLib.IO_HUP,
2560
functools.partial(self.handle_ipc,
2561
parent_pipe = parent_pipe,
2562
proc = proc,
2563
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))
2564
2093
parent_pipe.send(True)
2565
2094
# remove the old hook in favor of the new above hook on
2566
2095
# same fileno
2572
2101
2573
2102
parent_pipe.send(('data', getattr(client_object,
2574
2103
funcname)(*args,
2575
**kwargs)))
2104
**kwargs)))
2576
2105
2577
2106
if command == 'getattr':
2578
2107
attrname = request[1]
2579
if isinstance(client_object.__getattribute__(attrname),
2580
collections.Callable):
2581
parent_pipe.send(('function', ))
2108
if callable(client_object.__getattribute__(attrname)):
2109
parent_pipe.send(('function',))
2582
2110
else:
2583
parent_pipe.send((
2584
'data', client_object.__getattribute__(attrname)))
2111
parent_pipe.send(('data', client_object
2112
.__getattribute__(attrname)))
2585
2113
2586
2114
if command == 'setattr':
2587
2115
attrname = request[1]
2618
2146
# avoid excessive use of external libraries.
2619
2147
2620
2148
# New type for defining tokens, syntax, and semantics all-in-one
2621
Token = collections.namedtuple("Token", (
2622
"regexp", # To match token; if "value" is not None, must have
2623
# a "group" containing digits
2624
"value", # datetime.timedelta or None
2625
"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
2626
2158
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2627
2159
# the "duration" ABNF definition in RFC 3339, Appendix A.
2628
2160
token_end = Token(re.compile(r"$"), None, frozenset())
2629
2161
token_second = Token(re.compile(r"(\d+)S"),
2630
2162
datetime.timedelta(seconds=1),
2631
frozenset((token_end, )))
2163
frozenset((token_end,)))
2632
2164
token_minute = Token(re.compile(r"(\d+)M"),
2633
2165
datetime.timedelta(minutes=1),
2634
2166
frozenset((token_second, token_end)))
2650
2182
frozenset((token_month, token_end)))
2651
2183
token_week = Token(re.compile(r"(\d+)W"),
2652
2184
datetime.timedelta(weeks=1),
2653
frozenset((token_end, )))
2185
frozenset((token_end,)))
2654
2186
token_duration = Token(re.compile(r"P"), None,
2655
2187
frozenset((token_year, token_month,
2656
2188
token_day, token_time,
2657
token_week)))
2189
token_week))),
2658
2190
# Define starting values
2659
2191
value = datetime.timedelta() # Value so far
2660
2192
found_token = None
2661
followers = frozenset((token_duration, )) # Following valid tokens
2193
followers = frozenset(token_duration,) # Following valid tokens
2662
2194
s = duration # String left to parse
2663
2195
# Loop until end token is found
2664
2196
while found_token is not token_end:
2681
2213
break
2682
2214
else:
2683
2215
# No currently valid tokens were found
2684
raise ValueError("Invalid RFC 3339 duration: {!r}"
2685
.format(duration))
2216
raise ValueError("Invalid RFC 3339 duration")
2686
2217
# End token found
2687
2218
return value
2688
2219
2712
2243
timevalue = datetime.timedelta(0)
2713
2244
for s in interval.split():
2714
2245
try:
2715
suffix = s[-1]
2246
suffix = unicode(s[-1])
2716
2247
value = int(s[:-1])
2717
2248
if suffix == "d":
2718
2249
delta = datetime.timedelta(value)
2725
2256
elif suffix == "w":
2726
2257
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2727
2258
else:
2728
raise ValueError("Unknown suffix {!r}".format(suffix))
2729
except IndexError as e:
2259
raise ValueError("Unknown suffix {0!r}"
2260
.format(suffix))
2261
except (ValueError, IndexError) as e:
2730
2262
raise ValueError(*(e.args))
2731
2263
timevalue += delta
2732
2264
return timevalue
2748
2280
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2749
2281
if not stat.S_ISCHR(os.fstat(null).st_mode):
2750
2282
raise OSError(errno.ENODEV,
2751
"{} not a character device"
2283
"{0} not a character device"
2752
2284
.format(os.devnull))
2753
2285
os.dup2(null, sys.stdin.fileno())
2754
2286
os.dup2(null, sys.stdout.fileno())
2764
2296
2765
2297
parser = argparse.ArgumentParser()
2766
2298
parser.add_argument("-v", "--version", action="version",
2767
version = "%(prog)s {}".format(version),
2299
version = "%(prog)s {0}".format(version),
2768
2300
help="show version number and exit")
2769
2301
parser.add_argument("-i", "--interface", metavar="IF",
2770
2302
help="Bind to interface IF")
2803
2335
help="Directory to save/restore state in")
2804
2336
parser.add_argument("--foreground", action="store_true",
2805
2337
help="Run in foreground", default=None)
2806
parser.add_argument("--no-zeroconf", action="store_false",
2807
dest="zeroconf", help="Do not use Zeroconf",
2808
default=None)
2809
2338
2810
2339
options = parser.parse_args()
2811
2340
2812
2341
if options.check:
2813
2342
import doctest
2814
fail_count, test_count = doctest.testmod()
2815
sys.exit(os.EX_OK if fail_count == 0 else 1)
2343
doctest.testmod()
2344
sys.exit()
2816
2345
2817
2346
# Default values for config file for server-global settings
2818
2347
server_defaults = { "interface": "",
2820
2349
"port": "",
2821
2350
"debug": "False",
2822
2351
"priority":
2823
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2824
":+SIGN-DSA-SHA256",
2352
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2825
2353
"servicename": "Mandos",
2826
2354
"use_dbus": "True",
2827
2355
"use_ipv6": "True",
2830
2358
"socket": "",
2831
2359
"statedir": "/var/lib/mandos",
2832
2360
"foreground": "False",
2833
"zeroconf": "True",
2834
}
2361
}
2835
2362
2836
2363
# Parse config file for server-global settings
2837
2364
server_config = configparser.SafeConfigParser(server_defaults)
2838
2365
del server_defaults
2839
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2366
server_config.read(os.path.join(options.configdir,
2367
"mandos.conf"))
2840
2368
# Convert the SafeConfigParser object to a dict
2841
2369
server_settings = server_config.defaults()
2842
2370
# Use the appropriate methods on the non-string config options
2860
2388
# Override the settings from the config file with command line
2861
2389
# options, if set.
2862
2390
for option in ("interface", "address", "port", "debug",
2863
"priority", "servicename", "configdir", "use_dbus",
2864
"use_ipv6", "debuglevel", "restore", "statedir",
2865
"socket", "foreground", "zeroconf"):
2391
"priority", "servicename", "configdir",
2392
"use_dbus", "use_ipv6", "debuglevel", "restore",
2393
"statedir", "socket", "foreground"):
2866
2394
value = getattr(options, option)
2867
2395
if value is not None:
2868
2396
server_settings[option] = value
2869
2397
del options
2870
2398
# Force all strings to be unicode
2871
2399
for option in server_settings.keys():
2872
if isinstance(server_settings[option], bytes):
2873
server_settings[option] = (server_settings[option]
2874
.decode("utf-8"))
2400
if type(server_settings[option]) is str:
2401
server_settings[option] = unicode(server_settings[option])
2875
2402
# Force all boolean options to be boolean
2876
2403
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2877
"foreground", "zeroconf"):
2404
"foreground"):
2878
2405
server_settings[option] = bool(server_settings[option])
2879
2406
# Debug implies foreground
2880
2407
if server_settings["debug"]:
2883
2410
2884
2411
##################################################################
2885
2412
2886
if (not server_settings["zeroconf"]
2887
and not (server_settings["port"]
2888
or server_settings["socket"] != "")):
2889
parser.error("Needs port or socket to work without Zeroconf")
2890
2891
2413
# For convenience
2892
2414
debug = server_settings["debug"]
2893
2415
debuglevel = server_settings["debuglevel"]
2896
2418
stored_state_path = os.path.join(server_settings["statedir"],
2897
2419
stored_state_file)
2898
2420
foreground = server_settings["foreground"]
2899
zeroconf = server_settings["zeroconf"]
2900
2421
2901
2422
if debug:
2902
2423
initlogger(debug, logging.DEBUG)
2908
2429
initlogger(debug, level)
2909
2430
2910
2431
if server_settings["servicename"] != "Mandos":
2911
syslogger.setFormatter(
2912
logging.Formatter('Mandos ({}) [%(process)d]:'
2913
' %(levelname)s: %(message)s'.format(
2914
server_settings["servicename"])))
2432
syslogger.setFormatter(logging.Formatter
2433
('Mandos ({0}) [%(process)d]:'
2434
' %(levelname)s: %(message)s'
2435
.format(server_settings
2436
["servicename"])))
2915
2437
2916
2438
# Parse config file with clients
2917
2439
client_config = configparser.SafeConfigParser(Client
2922
2444
global mandos_dbus_service
2923
2445
mandos_dbus_service = None
2924
2446
2925
socketfd = None
2926
if server_settings["socket"] != "":
2927
socketfd = server_settings["socket"]
2928
tcp_server = MandosServer(
2929
(server_settings["address"], server_settings["port"]),
2930
ClientHandler,
2931
interface=(server_settings["interface"] or None),
2932
use_ipv6=use_ipv6,
2933
gnutls_priority=server_settings["priority"],
2934
use_dbus=use_dbus,
2935
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))
2936
2458
if not foreground:
2937
2459
pidfilename = "/run/mandos.pid"
2938
2460
if not os.path.isdir("/run/."):
2939
2461
pidfilename = "/var/run/mandos.pid"
2940
2462
pidfile = None
2941
2463
try:
2942
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2464
pidfile = open(pidfilename, "w")
2943
2465
except IOError as e:
2944
2466
logger.error("Could not open file %r", pidfilename,
2945
2467
exc_info=e)
2946
2468
2947
for name, group in (("_mandos", "_mandos"),
2948
("mandos", "mandos"),
2949
("nobody", "nogroup")):
2469
for name in ("_mandos", "mandos", "nobody"):
2950
2470
try:
2951
2471
uid = pwd.getpwnam(name).pw_uid
2952
gid = pwd.getpwnam(group).pw_gid
2472
gid = pwd.getpwnam(name).pw_gid
2953
2473
break
2954
2474
except KeyError:
2955
2475
continue
2959
2479
try:
2960
2480
os.setgid(gid)
2961
2481
os.setuid(uid)
2962
if debug:
2963
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2964
gid))
2965
2482
except OSError as error:
2966
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2967
.format(uid, gid, os.strerror(error.errno)))
2968
2483
if error.errno != errno.EPERM:
2969
raise
2484
raise error
2970
2485
2971
2486
if debug:
2972
2487
# Enable all possible GnuTLS debugging
2973
2488
2974
2489
# "Use a log level over 10 to enable all debugging options."
2975
2490
# - GnuTLS manual
2976
gnutls.global_set_log_level(11)
2491
gnutls.library.functions.gnutls_global_set_log_level(11)
2977
2492
2978
@gnutls.log_func
2493
@gnutls.library.types.gnutls_log_func
2979
2494
def debug_gnutls(level, string):
2980
2495
logger.debug("GnuTLS: %s", string[:-1])
2981
2496
2982
gnutls.global_set_log_function(debug_gnutls)
2497
(gnutls.library.functions
2498
.gnutls_global_set_log_function(debug_gnutls))
2983
2499
2984
2500
# Redirect stdin so all checkers get /dev/null
2985
2501
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2992
2508
# Close all input and output, do double fork, etc.
2993
2509
daemon()
2994
2510
2995
# multiprocessing will use threads, so before we use GLib we need
2996
# to inform GLib that threads will be used.
2997
GLib.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()
2998
2514
2999
2515
global main_loop
3000
2516
# From the Avahi example code
3001
2517
DBusGMainLoop(set_as_default=True)
3002
main_loop = GLib.MainLoop()
2518
main_loop = gobject.MainLoop()
3003
2519
bus = dbus.SystemBus()
3004
2520
# End of Avahi example code
3005
2521
if use_dbus:
3006
2522
try:
3007
2523
bus_name = dbus.service.BusName("se.recompile.Mandos",
3008
bus,
3009
do_not_queue=True)
3010
old_bus_name = dbus.service.BusName(
3011
"se.bsnet.fukt.Mandos", bus,
3012
do_not_queue=True)
3013
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:
3014
2529
logger.error("Disabling D-Bus:", exc_info=e)
3015
2530
use_dbus = False
3016
2531
server_settings["use_dbus"] = False
3017
2532
tcp_server.use_dbus = False
3018
if zeroconf:
3019
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3020
service = AvahiServiceToSyslog(
3021
name = server_settings["servicename"],
3022
servicetype = "_mandos._tcp",
3023
protocol = protocol,
3024
bus = bus)
3025
if server_settings["interface"]:
3026
service.interface = if_nametoindex(
3027
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"])))
3028
2541
3029
2542
global multiprocessing_manager
3030
2543
multiprocessing_manager = multiprocessing.Manager()
3049
2562
if server_settings["restore"]:
3050
2563
try:
3051
2564
with open(stored_state_path, "rb") as stored_state:
3052
if sys.version_info.major == 2:
3053
clients_data, old_client_settings = pickle.load(
3054
stored_state)
3055
else:
3056
bytes_clients_data, bytes_old_client_settings = (
3057
pickle.load(stored_state, encoding = "bytes"))
3058
### Fix bytes to strings
3059
## clients_data
3060
# .keys()
3061
clients_data = { (key.decode("utf-8")
3062
if isinstance(key, bytes)
3063
else key): value
3064
for key, value in
3065
bytes_clients_data.items() }
3066
del bytes_clients_data
3067
for key in clients_data:
3068
value = { (k.decode("utf-8")
3069
if isinstance(k, bytes) else k): v
3070
for k, v in
3071
clients_data[key].items() }
3072
clients_data[key] = value
3073
# .client_structure
3074
value["client_structure"] = [
3075
(s.decode("utf-8")
3076
if isinstance(s, bytes)
3077
else s) for s in
3078
value["client_structure"] ]
3079
# .name & .host
3080
for k in ("name", "host"):
3081
if isinstance(value[k], bytes):
3082
value[k] = value[k].decode("utf-8")
3083
## old_client_settings
3084
# .keys()
3085
old_client_settings = {
3086
(key.decode("utf-8")
3087
if isinstance(key, bytes)
3088
else key): value
3089
for key, value in
3090
bytes_old_client_settings.items() }
3091
del bytes_old_client_settings
3092
# .host
3093
for value in old_client_settings.values():
3094
if isinstance(value["host"], bytes):
3095
value["host"] = (value["host"]
3096
.decode("utf-8"))
2565
clients_data, old_client_settings = (pickle.load
2566
(stored_state))
3097
2567
os.remove(stored_state_path)
3098
2568
except IOError as e:
3099
2569
if e.errno == errno.ENOENT:
3100
logger.warning("Could not load persistent state:"
3101
" {}".format(os.strerror(e.errno)))
2570
logger.warning("Could not load persistent state: {0}"
2571
.format(os.strerror(e.errno)))
3102
2572
else:
3103
2573
logger.critical("Could not load persistent state:",
3104
2574
exc_info=e)
3105
2575
raise
3106
2576
except EOFError as e:
3107
2577
logger.warning("Could not load persistent state: "
3108
"EOFError:",
3109
exc_info=e)
2578
"EOFError:", exc_info=e)
3110
2579
3111
2580
with PGPEngine() as pgp:
3112
for client_name, client in clients_data.items():
2581
for client_name, client in clients_data.iteritems():
3113
2582
# Skip removed clients
3114
2583
if client_name not in client_settings:
3115
2584
continue
3124
2593
# For each value in new config, check if it
3125
2594
# differs from the old config value (Except for
3126
2595
# the "secret" attribute)
3127
if (name != "secret"
3128
and (value !=
3129
old_client_settings[client_name][name])):
2596
if (name != "secret" and
2597
value != old_client_settings[client_name]
2598
[name]):
3130
2599
client[name] = value
3131
2600
except KeyError:
3132
2601
pass
3133
2602
3134
2603
# Clients who has passed its expire date can still be
3135
# enabled if its last checker was successful. A Client
2604
# enabled if its last checker was successful. Clients
3136
2605
# whose checker succeeded before we stored its state is
3137
2606
# assumed to have successfully run all checkers during
3138
2607
# downtime.
3140
2609
if datetime.datetime.utcnow() >= client["expires"]:
3141
2610
if not client["last_checked_ok"]:
3142
2611
logger.warning(
3143
"disabling client {} - Client never "
3144
"performed a successful checker".format(
3145
client_name))
2612
"disabling client {0} - Client never "
2613
"performed a successful checker"
2614
.format(client_name))
3146
2615
client["enabled"] = False
3147
2616
elif client["last_checker_status"] != 0:
3148
2617
logger.warning(
3149
"disabling client {} - Client last"
3150
" checker failed with error code"
3151
" {}".format(
3152
client_name,
3153
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"]))
3154
2622
client["enabled"] = False
3155
2623
else:
3156
client["expires"] = (
3157
datetime.datetime.utcnow()
3158
+ client["timeout"])
2624
client["expires"] = (datetime.datetime
2625
.utcnow()
2626
+ client["timeout"])
3159
2627
logger.debug("Last checker succeeded,"
3160
" keeping {} enabled".format(
3161
client_name))
2628
" keeping {0} enabled"
2629
.format(client_name))
3162
2630
try:
3163
client["secret"] = pgp.decrypt(
3164
client["encrypted_secret"],
3165
client_settings[client_name]["secret"])
2631
client["secret"] = (
2632
pgp.decrypt(client["encrypted_secret"],
2633
client_settings[client_name]
2634
["secret"]))
3166
2635
except PGPError:
3167
2636
# If decryption fails, we use secret from new settings
3168
logger.debug("Failed to decrypt {} old secret".format(
3169
client_name))
3170
client["secret"] = (client_settings[client_name]
3171
["secret"])
2637
logger.debug("Failed to decrypt {0} old secret"
2638
.format(client_name))
2639
client["secret"] = (
2640
client_settings[client_name]["secret"])
3172
2641
3173
2642
# Add/remove clients based on new changes made to config
3174
2643
for client_name in (set(old_client_settings)
3179
2648
clients_data[client_name] = client_settings[client_name]
3180
2649
3181
2650
# Create all client objects
3182
for client_name, client in clients_data.items():
2651
for client_name, client in clients_data.iteritems():
3183
2652
tcp_server.clients[client_name] = client_class(
3184
name = client_name,
3185
settings = client,
2653
name = client_name, settings = client,
3186
2654
server_settings = server_settings)
3187
2655
3188
2656
if not tcp_server.clients:
3190
2658
3191
2659
if not foreground:
3192
2660
if pidfile is not None:
3193
pid = os.getpid()
3194
2661
try:
3195
2662
with pidfile:
3196
print(pid, file=pidfile)
2663
pid = os.getpid()
2664
pidfile.write(str(pid) + "\n".encode("utf-8"))
3197
2665
except IOError:
3198
2666
logger.error("Could not write to file %r with PID %d",
3199
2667
pidfilename, pid)
3200
2668
del pidfile
3201
2669
del pidfilename
3202
2670
3203
for termsig in (signal.SIGHUP, signal.SIGTERM):
3204
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3205
lambda: main_loop.quit() and False)
2671
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2672
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3206
2673
3207
2674
if use_dbus:
3208
3209
@alternate_dbus_interfaces(
3210
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3211
class MandosDBusService(DBusObjectWithObjectManager):
2675
@alternate_dbus_interfaces({"se.recompile.Mandos":
2676
"se.bsnet.fukt.Mandos"})
2677
class MandosDBusService(DBusObjectWithProperties):
3212
2678
"""A D-Bus proxy object"""
3213
3214
2679
def __init__(self):
3215
2680
dbus.service.Object.__init__(self, bus, "/")
3216
3217
2681
_interface = "se.recompile.Mandos"
3218
2682
2683
@dbus_interface_annotations(_interface)
2684
def _foo(self):
2685
return { "org.freedesktop.DBus.Property"
2686
".EmitsChangedSignal":
2687
"false"}
2688
3219
2689
@dbus.service.signal(_interface, signature="o")
3220
2690
def ClientAdded(self, objpath):
3221
2691
"D-Bus signal"
3226
2696
"D-Bus signal"
3227
2697
pass
3228
2698
3229
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3230
"true"})
3231
2699
@dbus.service.signal(_interface, signature="os")
3232
2700
def ClientRemoved(self, objpath, name):
3233
2701
"D-Bus signal"
3234
2702
pass
3235
2703
3236
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3237
"true"})
3238
2704
@dbus.service.method(_interface, out_signature="ao")
3239
2705
def GetAllClients(self):
3240
2706
"D-Bus method"
3241
return dbus.Array(c.dbus_object_path for c in
3242
tcp_server.clients.values())
2707
return dbus.Array(c.dbus_object_path
2708
for c in
2709
tcp_server.clients.itervalues())
3243
2710
3244
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3245
"true"})
3246
2711
@dbus.service.method(_interface,
3247
2712
out_signature="a{oa{sv}}")
3248
2713
def GetAllClientsWithProperties(self):
3249
2714
"D-Bus method"
3250
2715
return dbus.Dictionary(
3251
{ c.dbus_object_path: c.GetAll(
3252
"se.recompile.Mandos.Client")
3253
for c in tcp_server.clients.values() },
2716
((c.dbus_object_path, c.GetAll(""))
2717
for c in tcp_server.clients.itervalues()),
3254
2718
signature="oa{sv}")
3255
2719
3256
2720
@dbus.service.method(_interface, in_signature="o")
3257
2721
def RemoveClient(self, object_path):
3258
2722
"D-Bus method"
3259
for c in tcp_server.clients.values():
2723
for c in tcp_server.clients.itervalues():
3260
2724
if c.dbus_object_path == object_path:
3261
2725
del tcp_server.clients[c.name]
3262
2726
c.remove_from_connection()
3263
# Don't signal the disabling
2727
# Don't signal anything except ClientRemoved
3264
2728
c.disable(quiet=True)
3265
# Emit D-Bus signal for removal
3266
self.client_removed_signal(c)
2729
# Emit D-Bus signal
2730
self.ClientRemoved(object_path, c.name)
3267
2731
return
3268
2732
raise KeyError(object_path)
3269
2733
3270
2734
del _interface
3271
3272
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3273
out_signature = "a{oa{sa{sv}}}")
3274
def GetManagedObjects(self):
3275
"""D-Bus method"""
3276
return dbus.Dictionary(
3277
{ client.dbus_object_path:
3278
dbus.Dictionary(
3279
{ interface: client.GetAll(interface)
3280
for interface in
3281
client._get_all_interface_names()})
3282
for client in tcp_server.clients.values()})
3283
3284
def client_added_signal(self, client):
3285
"""Send the new standard signal and the old signal"""
3286
if use_dbus:
3287
# New standard signal
3288
self.InterfacesAdded(
3289
client.dbus_object_path,
3290
dbus.Dictionary(
3291
{ interface: client.GetAll(interface)
3292
for interface in
3293
client._get_all_interface_names()}))
3294
# Old signal
3295
self.ClientAdded(client.dbus_object_path)
3296
3297
def client_removed_signal(self, client):
3298
"""Send the new standard signal and the old signal"""
3299
if use_dbus:
3300
# New standard signal
3301
self.InterfacesRemoved(
3302
client.dbus_object_path,
3303
client._get_all_interface_names())
3304
# Old signal
3305
self.ClientRemoved(client.dbus_object_path,
3306
client.name)
3307
2735
3308
2736
mandos_dbus_service = MandosDBusService()
3309
2737
3310
2738
def cleanup():
3311
2739
"Cleanup function; run on exit"
3312
if zeroconf:
3313
service.cleanup()
2740
service.cleanup()
3314
2741
3315
2742
multiprocessing.active_children()
3316
2743
wnull.close()
3322
2749
# removed/edited, old secret will thus be unrecovable.
3323
2750
clients = {}
3324
2751
with PGPEngine() as pgp:
3325
for client in tcp_server.clients.values():
2752
for client in tcp_server.clients.itervalues():
3326
2753
key = client_settings[client.name]["secret"]
3327
2754
client.encrypted_secret = pgp.encrypt(client.secret,
3328
2755
key)
3330
2757
3331
2758
# A list of attributes that can not be pickled
3332
2759
# + secret.
3333
exclude = { "bus", "changedstate", "secret",
3334
"checker", "server_settings" }
3335
for name, typ in inspect.getmembers(dbus.service
3336
.Object):
2760
exclude = set(("bus", "changedstate", "secret",
2761
"checker", "server_settings"))
2762
for name, typ in (inspect.getmembers
2763
(dbus.service.Object)):
3337
2764
exclude.add(name)
3338
2765
3339
2766
client_dict["encrypted_secret"] = (client
3346
2773
del client_settings[client.name]["secret"]
3347
2774
3348
2775
try:
3349
with tempfile.NamedTemporaryFile(
3350
mode='wb',
3351
suffix=".pickle",
3352
prefix='clients-',
3353
dir=os.path.dirname(stored_state_path),
3354
delete=False) as stored_state:
3355
pickle.dump((clients, client_settings), stored_state,
3356
protocol = 2)
3357
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
3358
2782
os.rename(tempname, stored_state_path)
3359
2783
except (IOError, OSError) as e:
3360
2784
if not debug:
3363
2787
except NameError:
3364
2788
pass
3365
2789
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3366
logger.warning("Could not save persistent state: {}"
2790
logger.warning("Could not save persistent state: {0}"
3367
2791
.format(os.strerror(e.errno)))
3368
2792
else:
3369
2793
logger.warning("Could not save persistent state:",
3370
2794
exc_info=e)
3371
raise
2795
raise e
3372
2796
3373
2797
# Delete all clients, and settings from config
3374
2798
while tcp_server.clients:
3375
2799
name, client = tcp_server.clients.popitem()
3376
2800
if use_dbus:
3377
2801
client.remove_from_connection()
3378
# Don't signal the disabling
2802
# Don't signal anything except ClientRemoved
3379
2803
client.disable(quiet=True)
3380
# Emit D-Bus signal for removal
3381
2804
if use_dbus:
3382
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)
3383
2809
client_settings.clear()
3384
2810
3385
2811
atexit.register(cleanup)
3386
2812
3387
for client in tcp_server.clients.values():
2813
for client in tcp_server.clients.itervalues():
3388
2814
if use_dbus:
3389
# Emit D-Bus signal for adding
3390
mandos_dbus_service.client_added_signal(client)
2815
# Emit D-Bus signal
2816
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3391
2817
# Need to initiate checking of clients
3392
2818
if client.enabled:
3393
2819
client.init_checker()
3396
2822
tcp_server.server_activate()
3397
2823
3398
2824
# Find out what port we got
3399
if zeroconf:
3400
service.port = tcp_server.socket.getsockname()[1]
2825
service.port = tcp_server.socket.getsockname()[1]
3401
2826
if use_ipv6:
3402
2827
logger.info("Now listening on address %r, port %d,"
3403
2828
" flowinfo %d, scope_id %d",
3409
2834
#service.interface = tcp_server.socket.getsockname()[3]
3410
2835
3411
2836
try:
3412
if zeroconf:
3413
# From the Avahi example code
3414
try:
3415
service.activate()
3416
except dbus.exceptions.DBusException as error:
3417
logger.critical("D-Bus Exception", exc_info=error)
3418
cleanup()
3419
sys.exit(1)
3420
# 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
3421
2845
3422
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3423
lambda *args, **kwargs:
3424
(tcp_server.handle_request
3425
(*args[2:], **kwargs) or True))
2846
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2847
lambda *args, **kwargs:
2848
(tcp_server.handle_request
2849
(*args[2:], **kwargs) or True))
3426
2850
3427
2851
logger.debug("Starting main loop")
3428
2852
main_loop.run()
3438
2862
# Must run before the D-Bus bus name gets deregistered
3439
2863
cleanup()
3440
2864
3441
3442
2865
if __name__ == '__main__':
3443
2866
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0